CN114583480B - Connection device and radio frequency test equipment - Google Patents
Connection device and radio frequency test equipment Download PDFInfo
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- CN114583480B CN114583480B CN202011383145.6A CN202011383145A CN114583480B CN 114583480 B CN114583480 B CN 114583480B CN 202011383145 A CN202011383145 A CN 202011383145A CN 114583480 B CN114583480 B CN 114583480B
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- signal transmission
- transmission line
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 230000008054 signal transmission Effects 0.000 claims abstract description 74
- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 168
- 239000002184 metal Substances 0.000 claims description 168
- 229920001971 elastomer Polymers 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 11
- 239000000806 elastomer Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 11
- 239000004033 plastic Substances 0.000 description 13
- 229920003023 plastic Polymers 0.000 description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 8
- 239000007769 metal material Substances 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 239000005060 rubber Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
-
- 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
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
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- Measuring Leads Or Probes (AREA)
Abstract
The invention provides a connecting device which comprises a clamping piece, a connecting piece and a connecting piece, wherein the clamping piece comprises a first clamping arm, a second clamping arm and a telescopic connecting part; the first clamping arm is provided with a connecting hole and a grounding terminal; the signal transmission line is arranged in the connecting hole of the first clamping arm in a penetrating way. The invention also provides radio frequency test equipment which comprises the radio frequency test instrument and the connecting device. The invention avoids the need of welding a plurality of modules for multiple times during radio frequency test and improves the working efficiency by using the clamping piece and the signal transmission line.
Description
Technical Field
The present invention relates to the field of radio frequency test equipment, and in particular, to a connection device for connecting a circuit board and a radio frequency tester, and a radio frequency test equipment.
Background
The wearable device is generally provided with functional modules such as bluetooth and WIFI on a circuit board, and during the manufacturing process of the wearable device, radio Frequency signals of the functional modules are generally required to be tested, wherein Radio Frequency (RF) is an abbreviation of Radio Frequency, which indicates electromagnetic Frequency capable of radiating to space, and the Frequency range of the wearable device is 300 kHz-300 GHz.
In the radio frequency test of the existing wearable equipment, connecting wires are needed to be welded between each functional module of a circuit board of the wearable equipment and the tester to connect the tester with each functional module respectively, so that the test of radio frequency signals of each functional module can be realized.
However, since the wearable device adopts a miniaturized circuit board, in order to implement radio frequency test of each functional module thereon, a continuous wire bonding is required on each functional module to connect with the radio frequency tester, so that debugging of each functional module needs to consume a lot of time.
Disclosure of Invention
The invention provides a connecting device for connecting a circuit board and a radio frequency tester and radio frequency testing equipment, which are used for solving the problem that in the prior art, when radio frequency testing is carried out, the debugging time is too long due to the fact that welding wires are continuously required to be arranged on each functional module.
According to an embodiment of the present invention, in one aspect, there is provided a connection device including: the clamping piece comprises a first clamping arm, a second clamping arm and a telescopic connecting part, wherein the connecting part is positioned between the first clamping arm and the second clamping arm and is fixedly connected with the first clamping arm and the second clamping arm; the first clamping arm has conductivity, and the second clamping arm has insulation; the first clamping arm is provided with a connecting hole and a grounding terminal facing the second clamping arm, and the grounding terminal is used for being abutted with a grounding signal terminal of an element to be tested; the signal transmission line is arranged in the connecting hole of the first clamping arm in a penetrating mode and is used for realizing signal transmission between the element to be tested and the radio frequency tester.
In one possible implementation, the signal transmission line includes a metal outer skin and a metal inner core, the metal outer skin and the metal inner core being insulated from each other; one end of the metal sheath is fixedly connected with the inner wall of the connecting hole, and the other end of the metal sheath is electrically connected with the interface end of the radio frequency tester; one end of the metal inner core is used for being abutted against a radio frequency signal terminal of the element to be tested, and the other end of the metal inner core is used for being electrically connected with an interface end of the radio frequency tester.
In one possible implementation, the device further comprises a metal sleeve; the metal sleeve is connected to the free end of the first clamping arm through a screw thread with conductivity; the central axis of the metal sleeve is perpendicular to the screw and the metal sleeve is rotatable relative to the first clamping arm about the axis of rotation coaxial with the screw; the signal transmission line is arranged in the metal sleeve in a penetrating way, and the metal outer skin of the signal transmission line is fixedly connected with the inner wall of the metal sleeve. The metal sleeve is in threaded connection with the screw rod at the free end of the first clamping arm, and meanwhile, the signal transmission line is fastened in the metal sleeve to enable the components to be tested with different heights on the circuit board, the circuit board does not need to be moved, and the signal transmission line can be separately connected to the radio frequency terminal of one component to be tested from the radio frequency terminal of the other component to be tested by rotating the metal sleeve.
In one possible implementation, the connection part comprises a connecting sleeve, an elastomer and a connecting rod; one end of the connecting sleeve is fixedly connected with the first clamping arm; the elastic body and the connecting rod are arranged in the connecting sleeve; the upper end of the elastic body is fixedly connected with the connecting sleeve, and the lower end of the elastic body is fixedly connected with the upper end of the connecting rod; the lower end of the connecting rod is fixedly connected with the second clamping arm. The first clamping arm and the second clamping arm can clamp circuit boards with different thicknesses through the connecting sleeve, the elastic body and the connecting rod in the connecting part.
In one possible implementation, the ground terminal is a metal rod perpendicular to the first clamping arm. The grounding terminal is arranged perpendicular to the first clamping arm, so that the size of the grounding terminal is minimum, and meanwhile, the grounding terminal is convenient to abut against the grounding signal terminal of the element to be tested in a perpendicular arrangement mode.
In one possible implementation, the radio frequency tester further comprises a connector for connecting the interface of the signal transmission line and the radio frequency tester, wherein one part of the connector is electrically connected with the metal inner core of the signal transmission line, and the other part of the connector is electrically connected with the metal outer skin of the signal transmission line. The signal transmission line is connected with the interface of the radio frequency tester through the connector, so that the signal transmission is convenient, the device is convenient to split, and when the test is finished, the connector is only required to be pulled out from the interface of the radio frequency tester, and the connecting device can be divided into two parts for storage.
In one possible implementation, the connector includes an interface ring, an insulating post, and a ground pin; the interface ring is used for being electrically connected with the metal jacket of the radio frequency tester; the insulating column is arranged in the interface ring and is coaxially arranged with the interface ring; the center of the insulating column is penetrated with a coaxial metal connecting core, one end of the metal connecting core is electrically connected with the radio frequency tester, and the other end of the metal connecting core is connected with the metal inner core of the signal transmission line; the grounding pin is arranged on the interface ring and is electrically connected with the metal sheath of the signal transmission line.
In one possible implementation, a plurality of the ground pins are disposed along a circumference of the interface ring; and/or, the grounding pin is electrically connected with the metal sheath of the signal transmission line through a grounding lead. The arrangement of the grounding pins is convenient for the interface ring to be electrically connected with the metal sheath, and meanwhile, the arrangement of the grounding pins enables the interface ring to be firmly connected with the metal sheath.
In one possible implementation, one end of the ground lead is soldered to the ground pin and the other end of the ground lead is soldered to the metal sheath. The interface ring and the signal transmission line can be staggered at a certain angle through the arrangement of the grounding lead, the grounding pin is smaller, and the interface ring and the metal sheath are conveniently welded through the grounding lead.
According to another aspect of the present invention, there is provided a radio frequency test apparatus including a radio frequency test instrument and the above-mentioned connection device.
The invention provides a connecting device and radio frequency test equipment. According to the technical scheme provided by the embodiment of the invention, the connecting device clamps the circuit board containing the element to be tested through the first clamping arm, the second clamping arm and the telescopic connecting part in the clamping piece, the signal transmission line is arranged in the connecting hole of the first clamping arm in a penetrating way, and the signal transmission between the element to be tested and the tester is realized through the signal transmission line, so that the position of the circuit board containing the element to be tested in the clamping piece is only required to be changed when a plurality of different modules are subjected to radio frequency test, and the dilemma that welding wires are required to be continuously welded on each functional module when the plurality of modules are subjected to radio frequency test is avoided, and the working efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of a connection device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of the connecting portion in FIG. 1;
FIG. 3 is a schematic structural view of another connecting device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another connection device according to an embodiment of the present invention;
fig. 5 is an enlarged schematic view of the portion a of the connection device of fig. 4.
Reference numerals:
10-a first clamping arm;
20-a second clamping arm;
30-connecting part;
301-connecting sleeve; 302-an elastomer; 303-connecting rod;
40-ground terminals;
50-signal transmission lines;
501-a metal skin; 502-a metal core;
60-metal sleeve;
a 70-linker;
701-interface ring; 702-insulating columns; 703-a ground pin; 704-connecting the cores;
80-ground lead.
Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The size of the existing wearable device is limited, so that the existing wearable device needs to adopt a miniaturized circuit board, a plurality of functional modules such as Bluetooth and WIFI are arranged on the miniaturized circuit board, and in order to realize radio frequency test of each functional module, welding wires are required to be continuously arranged on each functional module so as to be connected with a radio frequency tester, so that debugging of each functional module needs to be continuously welded and disassembled, a large amount of time is consumed, and the working efficiency is low.
In view of this, the present disclosure relates to a connection device, which can be clamped on a circuit board, and the connection device is further designed with a grounding end and a signal end that can be electrically connected with a functional module on the circuit board, so that through the switching function of the connection device, the electrical connection between a radio frequency test instrument and the circuit board is realized, and further, the test of radio frequency signals of each radio frequency module on the circuit board can be conveniently realized without welding a connecting wire.
Specifically, the connecting device disclosed by the invention clamps the circuit board of the element to be tested through the clamping piece, namely, the circuit board of the element to be tested is clamped through the first clamping arm, the second clamping arm and the telescopic connecting part, a signal connecting wire is arranged in the connecting hole of the first clamping arm, the signal connecting wire realizes signal transmission between the element to be tested and the tester on the circuit board, and when a plurality of functional modules on the circuit board are subjected to radio frequency test, the signal transmission can be realized only by moving the position of the circuit board in the clamping piece, so that continuous welding and dismantling during radio frequency test are avoided, and a large amount of time is consumed.
Exemplary implementations of the present invention are described below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand the aspects of the present disclosure. It should be noted that some or some of the different implementations described below may be replaced with other implementations, and that implementations of the present disclosure are not limited to the examples described below, and that other possible implementations may be derived from the examples below by those skilled in the art under the above concepts, and should also be considered as the disclosure.
Example 1
Fig. 1 shows a connection device. As shown in fig. 1, the connection device provided includes a clamping member for clamping the circuit board and a signal transmission line 50.
The clamping member includes first and second clamping arms 10 and 20 and a telescopic connection portion 30, and the connection portion 30 is located between the first and second clamping arms 10 and 20 and is fastened to the first and second clamping arms 10 and 20, so that the clamping member can be clamped on a circuit board to be tested by the first and second clamping arms 10 and 20.
The first clamp arm 10 is provided with a ground terminal 40 facing the second clamp arm 20, and the ground terminal 40 is in contact with a ground signal terminal of the element to be tested.
The first clamping arm 10 is further provided with a connection hole and a signal transmission line 50 is inserted into the connection hole. The signal transmission line 50 includes a metal outer skin 501 and a metal inner core 502, and insulation is provided between the metal outer skin 501 and the metal inner core 502. One end of the metal skin 501 is fixedly connected with the inner wall of the connecting hole, and the other end of the metal skin 501 is electrically connected with a metal jacket in an interface of the radio frequency tester; one end of the metal inner core 502 is abutted with a radio frequency signal terminal of the element to be tested, and the other end of the metal inner core 502 is electrically connected with a metal inner core sleeve at the interface end of the radio frequency tester, so that the radio frequency tester is electrically connected with a functional module on the circuit board to be tested.
When the radio frequency test needs to be performed on the element to be tested, the circuit board to be tested is clamped between the first clamping arm 10 and the second clamping arm 20, so that the metal inner core 502 of the signal transmission line 50 is abutted to the signal end of the functional module, and the grounding terminal 40 of the first clamping arm 10 is abutted to the grounding end of the functional module of the circuit board to be tested, and as the metal outer skin 501 of the signal transmission line 50 is tightly connected with the inner wall of the connecting hole of the first clamping arm 10, the metal outer skin 501 is electrically connected with the grounding end of the functional module, and further the electrical connection between the connecting device and the module to be tested is realized. The upper end of the metal skin 501 is electrically connected with the interface end metal outer sleeve of the tester, and the upper end of the metal inner core 502 is electrically connected with the interface end metal inner core sleeve of the radio frequency tester, so that a test loop is formed, radio frequency signals of the functional module can be transmitted to the radio frequency tester, and the radio frequency test of the functional module is completed. When testing a plurality of functional modules, only the clamping position of the clamping piece on the circuit board needs to be changed.
Illustratively, the metallic material of the signal transmission line 50 may be copper or aluminum. For example, the signal transmission line 50 is made of copper, that is, the metal outer skin 501 is a copper sheath and the metal inner core 502 is a copper wire. Insulation between the metal outer skin 501 and the metal inner core 502 may be achieved by designing a certain creepage gap, or an insulating layer made of an insulating material may be provided therebetween. The insulating material may be ceramic, plastic, rubber, etc. For example, a polyethylene plastic city is formed between the metal outer skin 501 and the metal inner core 502 by in-mold injection molding to achieve insulation between the two. In addition, in order to protect the metal skin 501 from being damaged by exposure to air, plastic may be sleeved outside the metal skin 501.
The first clamping arm 10 is made of a metallic material. For example, the first clamp arm 10 metal material may be copper, aluminum, steel, or the like. The first clamping arm 10 may be an elongated steel plate. The second clamping arm 20 is made of an insulating material. For example, the second clamping arm 20 may be made of ceramic, plastic, rubber, or the like. The second clamping arm 20 may be an elongated plastic plate. Of course, the first clamping arm 10 may also be a telescopic clamping arm, for example, the first clamping arm 10 includes a base plate and a sliding plate arranged on the base plate, the base plate and the sliding plate are both steel plates, a U-shaped opening is formed on the base plate, sliding ways are arranged on two side walls of the U-shaped opening, sliding plates are arranged on the sliding ways, the sliding plates move along the sliding ways in the U-shaped opening, and circuit board clamping with different lengths is satisfied by extending or contracting the sliding plates. Similarly, the second clamping arm 20 may be a telescopic clamping arm, for example, the second clamping arm 20 has the same structure as the first clamping arm 10, except that the base plate and the sliding plate are both insulating plastic plates.
Fig. 2 shows a specific structure of the connection part in fig. 1. As shown in fig. 2, the connecting portion 30 may be formed of any structure that can be extended and contracted, such as a rubber extension sleeve or a spring. In one implementation, the connection 30 comprises a connection sleeve 301, an elastomer 302 and a connecting rod 303; one end of the connecting sleeve 301 is fixedly connected with the first clamping arm 10, the connecting sleeve 301 can be made of metal material or insulating material, the connecting sleeve 301 is made of metal material, and the connecting sleeve 301 and the inner side end of the first clamping arm 10 can be fixed through welding; the elastic body 302 and the connecting rod 303 are arranged in the connecting sleeve 301, and the connecting rod 303 moves up and down in the connecting sleeve 301 along with the expansion and contraction of the elastic body 302; wherein, the elastic body 302 can be a spring or a rubber rod, the elastic body 302 is a spring, the upper end of the elastic body 302 is fixedly connected with the connecting sleeve 301, and the lower end of the elastic body 302 is fixedly connected with the upper end of the connecting rod 303; the lower end of the connecting rod 303 is fixedly connected with the second clamping arm 20, and when the connecting sleeve 301 is made of a metal sleeve material, the length of the connecting rod 303 needs to be extended to the bottom end of the connecting sleeve 301 for a certain distance, so that the second clamping arm 20 can move up and down along with the expansion and contraction of the elastic body 302.
In another possible implementation, the ground terminal 40 may be a metal rod perpendicular to the first clamping arm 10. Perpendicular to the first clamping arm 10 enables the ground terminal 40 to be connected to the first clamping arm 10 at a minimum distance. Of course, as long as the grounding terminal 40 can meet that one end of the grounding terminal is fixedly connected to the first clamping arm 10, the other end of the grounding terminal 40 can be abutted against the circuit board to be tested, and the connection angle of the grounding terminal and the first clamping arm 10 can be any angle, so that the grounding terminal can adapt to the testing requirements of different circuit boards.
Of course, the grounding terminal 40 may be an elastic metal telescopic rod perpendicular to the first clamping arm 10, that is, the grounding terminal 40 includes a sleeve, a spring and a telescopic head are disposed in the sleeve, one end of the spring is fixedly connected with the sleeve, the other end of the sleeve is fixedly connected with the telescopic head, and the telescopic head can move up and down along with the expansion and contraction of the spring. The grounding terminal 40 is arranged to be a metal telescopic rod with elasticity, so that the grounding terminal 40 is pressed downwards by a spring when being abutted with the radio frequency terminal of the element to be tested on the circuit board, and the grounding terminal 40 is abutted with the radio frequency terminal of the element to be tested on the circuit board more firmly.
The connecting device provided in this embodiment clamps the circuit board containing the element to be tested through the first clamping arm 10, the second clamping arm 20 and the telescopic connecting portion 30 in the clamping piece, the signal transmission line 50 is arranged in the connecting hole of the first clamping arm 10 in a penetrating manner, and the signal transmission between the element to be tested and the tester is realized through the signal transmission line 50, so that the position of the circuit board containing the element to be tested in the clamping piece only needs to be changed when the radio frequency test is performed on a plurality of different modules, and therefore, the need of continuously welding wires on each functional module when the radio frequency test is performed on the plurality of modules is avoided, and the working efficiency is improved.
Example two
Fig. 3 shows another connection device. As shown in fig. 3, the connection means provided therein includes a holder for holding the circuit board and a signal transmission line 50, the signal transmission line 50 being rotatably mounted on the holder by a rotatable metal sleeve 60.
The clamping member includes first and second clamping arms 10 and 20 and a telescopic connection portion 30, and the connection portion 30 is located between the first and second clamping arms 10 and 20 and is fastened to the first and second clamping arms 10 and 20, so that the clamping member can be clamped on a circuit board to be tested by the first and second clamping arms 10 and 20.
The first clamp arm 10 is provided with a ground terminal 40 facing the second clamp arm 20, and the ground terminal 40 is in contact with a ground signal terminal of the element to be tested.
A metal sleeve 60 is arranged at the free end of the first clamping arm 10, and the metal sleeve 60 is in threaded connection and electric connection with the first clamping arm 10 through a screw; the central axis of the metal sleeve 60 is perpendicular to the screw and the metal sleeve 60 is rotatable relative to the first clamping arm 10 about an axis of rotation coaxial with the screw; a signal transmission line 50 is also inserted into the metal sleeve 60, and the signal transmission line 50 is fastened to the inner wall of the metal sleeve 60. Thereby realizing the electric connection between the radio frequency tester and the functional module on the circuit board to be tested.
The signal transmission line 50 includes a metal outer skin 501 and a metal inner core 502, and insulation is provided between the metal outer skin 501 and the metal inner core 502. Insulation between the metal outer skin 501 and the metal inner core 502 may be achieved by designing a certain creepage gap, or an insulating layer made of an insulating material may be provided therebetween. The insulating material may be ceramic, plastic, rubber, etc. For example, a polyethylene plastic city is formed between the metal outer skin 501 and the metal inner core 502 by in-mold injection molding to achieve insulation between the two.
One end of the metal skin 501 is fixedly connected with the inner wall of the metal sleeve 60, and the other end of the metal skin 501 is electrically connected with a metal jacket in an interface of the radio frequency tester; one end of the metal inner core 502 is abutted with a radio frequency signal terminal of the element to be tested, and the other end of the metal inner core 502 is electrically connected with a metal inner core sleeve at the interface end of the radio frequency tester, so that the radio frequency tester is electrically connected with a functional module on the circuit board to be tested.
Illustratively, the metal material of the metal sleeve 60 may be copper, aluminum, steel, etc., where the metal sleeve 60 is made of steel, the metal sleeve 60 is screwed with the first clamping arm 10 by a screw, the metal sleeve 60 is detachably connected with the first clamping arm 10 into a whole, and the relative angle between the metal sleeve 60 and the first clamping arm 10 can be changed by adjusting the screw.
The metal sleeve 60 is driven to rotate along the free end of the first clamping arm 10 by the rotation of the screw, but the signal transmission line 50 is fastened in the metal sleeve 60, so that the rotation angle of the screw is limited, that is, the screw moves according to a set sector track. The metal sleeve 60 and the metal outer skin 501 of the signal transmission line 50 may be fixed by welding or by screwing. The metal sleeve 60 is fastened to the metal outer skin 501 of the signal transmission line 50, so that the signal transmission line 50 fastened to the metal sleeve 60 can be rotated synchronously with the rotation of the metal sleeve 60.
Specifically, the metal sleeve 60 drives the metal sleeve 60 to rotate along the first clamping arm 10 through rotation of the screw, and meanwhile, the signal transmission line 50 is fastened and connected in the metal sleeve 60, so that the signal transmission line 50 and the metal sleeve 60 rotate synchronously.
When the rotary screw rotates, on one hand, the metal inner core 502 extending out of the bottom end of the signal transmission line 50 can be abutted or separated from the radio frequency signal terminal of the element to be tested on the corresponding circuit board, so that the position of the circuit board in the clamping piece can be replaced conveniently; on the other hand, the rotation of the metal sleeve 60 makes the same metal plate be capable of realizing the synchronous rotation of the signal transmission line 50 after the measurement of the radio frequency signal terminal of one element to be tested is completed without moving the circuit board for the modules to be tested with different heights, so that the metal inner core 502 at the lower end of the signal transmission line 50 can be rapidly abutted against the radio frequency signal terminal of the next element to be tested, and the test efficiency is improved.
It should be noted that the other connecting device shown in fig. 3 is different from the connecting device shown in fig. 1 in that the other connecting device in fig. 3 includes more rotatable metal sleeves 60 than the connecting device in fig. 1, and the rest of the structure is the same as the connecting device in fig. 1. The interface end of the radio frequency tester and the interface end of the radio frequency tester are connected together through a flexible hose, and a signal wire and a grounding wire are also arranged in the flexible hose, so that normal transmission of signals can be ensured, and when the signal transmission wire 50 rotates along with the metal sleeve 60, the connecting hose of the radio frequency tester bends or stretches along with the bending.
The connecting device provided in this embodiment, through configuring the rotatable metal sleeve 60, can adapt to the functional modules with different distances between the ground terminal and the signal terminal, which is beneficial to improving the universality of the connecting device.
Example III
Fig. 4 shows a further connection device. As shown in fig. 4, the connection device provided includes a holder for holding a circuit board, a signal transmission line 50, and a connector 70.
The clamping member includes first and second clamping arms 10 and 20 and a telescopic connection portion 30, and the connection portion 30 is located between the first and second clamping arms 10 and 20 and is fastened to the first and second clamping arms 10 and 20, so that the clamping member can be clamped on a circuit board to be tested by the first and second clamping arms 10 and 20.
The first clamp arm 10 is provided with a ground terminal 40 facing the second clamp arm 20, and the ground terminal 40 is in contact with a ground signal terminal of the element to be tested.
A metal sleeve 60 is arranged at the free end of the first clamping arm 10, and the metal sleeve 60 is in threaded connection and electric connection with the first clamping arm 10 through a screw; the central axis of the metal sleeve 60 is perpendicular to the screw and the metal sleeve 60 is rotatable relative to the first clamping arm 10 about an axis of rotation coaxial with the screw; a signal transmission line 50 is also arranged in the metal sleeve 60 in a penetrating way, and the signal transmission line 50 is fixedly connected with the inner wall of the metal sleeve 60; a connector 70 is provided at the upper end of the signal transmission line 50. Thereby realizing the electric connection between the radio frequency tester and the functional module on the circuit board to be tested.
The signal transmission line 50 includes a metal outer skin 501 and a metal inner core 502, and insulation is provided between the metal outer skin 501 and the metal inner core 502. Insulation between the metal outer skin 501 and the metal inner core 502 may be achieved by designing a certain creepage gap, or an insulating layer made of an insulating material may be provided therebetween. The insulating material may be ceramic, plastic, rubber, etc. For example, a polyethylene plastic city is formed between the metal outer skin 501 and the metal inner core 502 by in-mold injection molding to achieve insulation between the two.
Fig. 5 is an enlarged view of a portion a of the connection device of fig. 4. As shown in fig. 5, the connector 70 includes an interface ring 701, an insulating post 702, and a ground pin 703; the interface ring 701 is electrically connected with the metal casing of the radio frequency tester; the insulating column 702 is disposed within the interface ring 701 and coaxially disposed with the interface ring 701; the center of the insulating column 702 is provided with a coaxial metal connecting core 704 in a penetrating way, the upper end of the metal connecting core 704 is electrically connected with a metal inner core sleeve of the radio frequency tester, and the lower end of the metal connecting core 704 is connected with the metal inner core 502 of the signal transmission line 50; the ground pins 703 are disposed on the interface ring 701 and electrically connected to the metal sheath 501 of the signal transmission line 50.
Specifically, the interface ring 701 is made of a metal material, the interface ring 701 may be made of a metal material such as copper, aluminum, steel, etc., where the interface ring 701 is made of copper, an external thread is provided on an outer circumferential wall of the interface ring 701, the interface ring is connected with an interface end of the radio frequency tester through the external thread, four grounding pins 703 are provided on a circumference of the interface ring 701, and the grounding pins 703 are welded with the interface ring 701.
In order to facilitate the installation of the ground pins 703, a connection pad may be installed at the bottom end of the interface ring 701, the connection pad may be metal square, and the ground pins 703 may be welded at four corners of the connection pad, which is of course not limited to 4, and may be adjusted according to the actual working conditions, so long as the conductive connection between the interface ring 701 and the metal sheath 501 can be achieved.
In another possible implementation, the ground lead 80 may be soldered to the outer end of the ground pin 703, and the ground lead 80 may be connected to the metal sheath 501 by the ground lead 80, where the ground lead 80 is a flexible wire, so that the metal sheath 501 may be connected to the interface ring 701 at an offset angle.
Illustratively, the insulating column 702 is inserted into the interface ring 701, the insulating column 702 is fastened to the interface ring 701, the insulating column 702 may be made of plastic, ceramic or rubber, the insulating column 702 is made of plastic, the insulating column 702 is in interference fit with the interface ring 701, a through hole is formed in the center of the insulating column 702, the upper end of the coaxial metal connecting core 704 is fastened to the through hole, the upper end of the metal connecting core 704 is electrically connected with a metal inner core sleeve of the radio frequency tester, and the lower end of the metal connecting core 704 is connected with the metal inner core 502 of the signal transmission line 50. Of course, the insulating column 702 and the metal connection core 704 may be connected by injection molding, that is, the metal connection core 704 is placed in a mold of the insulating column 702, and the plastic is injected into the mold to form a fastening connection between the insulating column 702 and the metal connection core 704.
It should be noted that, the further connection device shown in fig. 4 is different from the connection device shown in fig. 3 in that the further connection device in fig. 4 is provided with a connector 70 at an upper end of the signal transmission line 50 in the connection device in fig. 3, and the rest of the structure is the same as the connection device in fig. 1.
The connection device provided in this embodiment is beneficial to being connected with a radio frequency tester quickly and improving the test efficiency by configuring the connector 70 electrically connected with the signal transmission line 50.
Example IV
A radio frequency test device comprises a radio frequency test instrument and the connecting device. The connecting device is used for connecting the element to be tested with the radio frequency test instrument signal to realize the radio frequency test of the unit to be tested.
Specifically, during the radio frequency signal test, a single element to be tested is required to be connected with a radio frequency test instrument through a connecting device, the connection mode of the upper part of the connecting device and the radio frequency test instrument is fixed, and when the element to be tested is tested each time, the connection between a signal transmission line in a clamping piece at the lower part of the connecting device and a radio frequency terminal of the element to be tested is only required to be changed, namely, the position of a circuit board containing the element to be tested in the clamping piece is required to be adjusted. Therefore, the radio frequency test equipment avoids a plurality of welding wires of a plurality of elements to be tested, and improves the working efficiency.
The radio frequency test equipment provided by the embodiment of the invention has the advantages that the connecting device clamps the circuit board containing the element to be tested through the first clamping arm, the second clamping arm and the telescopic connecting part in the clamping piece, the signal transmission line is arranged in the connecting hole of the first clamping arm in a penetrating way, and the signal transmission between the element to be tested and the tester is realized through the signal transmission line, so that the position of the circuit board containing the element to be tested in the clamping piece is only required to be changed when the radio frequency test is carried out on a plurality of different modules, the continuous welding wire on each functional module is required when the radio frequency test is carried out on the plurality of modules, and the working efficiency is improved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. A connecting device is characterized by comprising,
the clamping piece comprises a first clamping arm, a second clamping arm and a telescopic connecting part, wherein the connecting part is positioned between the first clamping arm and the second clamping arm and is fixedly connected with the first clamping arm and the second clamping arm; the first clamping arm has conductivity, and the second clamping arm has insulation; the first clamping arm is provided with a connecting hole and a grounding terminal facing the second clamping arm, and the grounding terminal is used for being abutted with a grounding signal terminal of an element to be tested;
the signal transmission line is arranged in the connecting hole of the first clamping arm in a penetrating way and is used for realizing signal transmission between the element to be tested and the radio frequency tester;
a metal sleeve which is connected to the free end of the first clamping arm through a screw thread with conductivity; the central axis of the metal sleeve is perpendicular to the screw, and the metal sleeve can rotate relative to the first clamping arm around a rotation axis coaxial with the screw; the signal transmission line is arranged in the metal sleeve in a penetrating way, and the metal outer skin of the signal transmission line is fixedly connected with the inner wall of the metal sleeve;
the connecting part comprises a connecting sleeve, an elastomer and a connecting rod; one end of the connecting sleeve is fixedly connected with the first clamping arm; the elastic body and the connecting rod are arranged in the connecting sleeve; one end of the elastic body, which is close to the first clamping arm, is fixedly connected with the connecting sleeve, and one end of the elastic body, which is far away from the first clamping arm, is fixedly connected with one end of the connecting rod; the other end of the connecting rod is fixedly connected with the second clamping arm.
2. The connection device of claim 1, wherein the signal transmission line comprises a metal outer skin and a metal inner core, the metal outer skin and the metal inner core being insulated from each other; one end of the metal sheath is fixedly connected with the inner wall of the connecting hole, and the other end of the metal sheath is electrically connected with the interface end of the radio frequency tester; one end of the metal inner core is used for being abutted against a radio frequency signal terminal of the element to be tested, and the other end of the metal inner core is used for being electrically connected with an interface end of the radio frequency tester.
3. The connection device of claim 1, wherein the ground terminal is a metal rod perpendicular to the first clamping arm.
4. A connection device as claimed in any one of claims 1 to 3, further comprising a connector for connecting the interface of the signal transmission line and the radio frequency tester, a portion of the connector being electrically connected to the metal core of the signal transmission line and another portion of the connector being electrically connected to the metal sheath of the signal transmission line.
5. The connection device of claim 4, wherein the connector comprises an interface ring, an insulating post, and a ground pin;
the interface ring is used for being electrically connected with the metal jacket of the radio frequency tester;
the insulating column is arranged in the interface ring and is coaxially arranged with the interface ring; the center of the insulating column is penetrated with a coaxial metal connecting core, one end of the metal connecting core is electrically connected with the radio frequency tester, and the other end of the metal connecting core is connected with the metal inner core of the signal transmission line;
the grounding pin is arranged on the interface ring and is electrically connected with the metal sheath of the signal transmission line.
6. The connection device according to claim 5, wherein a plurality of the ground pins are provided along a circumferential direction of the interface ring; and/or the number of the groups of groups,
the grounding pin is electrically connected with the metal sheath of the signal transmission line through a grounding lead.
7. The connection device of claim 6, wherein one end of the ground lead is welded to the ground pin and the other end of the ground lead is welded to the metal sheath.
8. A radio frequency testing device comprising a radio frequency testing instrument and a connection arrangement according to any one of claims 1-7.
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| CN202011383145.6A CN114583480B (en) | 2020-12-01 | 2020-12-01 | Connection device and radio frequency test equipment |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6384617B1 (en) * | 1999-11-17 | 2002-05-07 | Agilent Technologies, Inc. | Signal transfer device for probe test fixture |
| CN201126455Y (en) * | 2007-11-19 | 2008-10-01 | 英业达股份有限公司 | Signal test control tool |
| CN101458970A (en) * | 2007-12-14 | 2009-06-17 | 鸿富锦精密工业（深圳）有限公司 | Circuit board test clamp |
| CN207352122U (en) * | 2017-10-13 | 2018-05-11 | 深圳市美格智能技术股份有限公司 | A kind of attachment device for being used to test radio frequency circuit board |
| CN207741449U (en) * | 2017-12-14 | 2018-08-17 | 徐彬 | A kind of panel rack and freeze-day with constant temperature machine |
| CN109088676A (en) * | 2018-07-02 | 2018-12-25 | 四川斐讯信息技术有限公司 | A kind of radio frequency testing head and radio frequency testing instrument |
| CN209151175U (en) * | 2019-02-14 | 2019-07-23 | 歌尔智能科技有限公司 | A kind of radio frequency testing device |
| CN110312367A (en) * | 2018-03-20 | 2019-10-08 | 明泰科技股份有限公司 | Welding pad structure for radio frequency testing |
| CN210744392U (en) * | 2019-11-19 | 2020-06-12 | 中电科仪器仪表有限公司 | Double-wire coaxial cable assembly for Kelvin four-wire method measurement |
| CN211525934U (en) * | 2020-01-17 | 2020-09-18 | 成都盈讯通电子科技有限公司 | Electronic communication equipment installs base |
| CN211589842U (en) * | 2019-12-24 | 2020-09-29 | 上海北臻电子科技有限公司 | Manipulator for radio frequency consistency test fixture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI669511B (en) * | 2018-09-19 | 2019-08-21 | 中華精測科技股份有限公司 | Probe card testing device and testing device |
-
2020
- 2020-12-01 CN CN202011383145.6A patent/CN114583480B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6384617B1 (en) * | 1999-11-17 | 2002-05-07 | Agilent Technologies, Inc. | Signal transfer device for probe test fixture |
| CN201126455Y (en) * | 2007-11-19 | 2008-10-01 | 英业达股份有限公司 | Signal test control tool |
| CN101458970A (en) * | 2007-12-14 | 2009-06-17 | 鸿富锦精密工业（深圳）有限公司 | Circuit board test clamp |
| CN207352122U (en) * | 2017-10-13 | 2018-05-11 | 深圳市美格智能技术股份有限公司 | A kind of attachment device for being used to test radio frequency circuit board |
| CN207741449U (en) * | 2017-12-14 | 2018-08-17 | 徐彬 | A kind of panel rack and freeze-day with constant temperature machine |
| CN110312367A (en) * | 2018-03-20 | 2019-10-08 | 明泰科技股份有限公司 | Welding pad structure for radio frequency testing |
| CN109088676A (en) * | 2018-07-02 | 2018-12-25 | 四川斐讯信息技术有限公司 | A kind of radio frequency testing head and radio frequency testing instrument |
| CN209151175U (en) * | 2019-02-14 | 2019-07-23 | 歌尔智能科技有限公司 | A kind of radio frequency testing device |
| CN210744392U (en) * | 2019-11-19 | 2020-06-12 | 中电科仪器仪表有限公司 | Double-wire coaxial cable assembly for Kelvin four-wire method measurement |
| CN211589842U (en) * | 2019-12-24 | 2020-09-29 | 上海北臻电子科技有限公司 | Manipulator for radio frequency consistency test fixture |
| CN211525934U (en) * | 2020-01-17 | 2020-09-18 | 成都盈讯通电子科技有限公司 | Electronic communication equipment installs base |
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| CN114583480A (en) | 2022-06-03 |
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