CN207896297U - A kind of elastomeric connector of soldering-free type test microstrip circuit - Google Patents

Abstract

The utility model is related to the elastomeric connectors that a kind of soldering-free type tests microstrip circuit, the inner wire group of the elastomeric connector is divided into three parts, it is followed successively by the first inner wire, the second inner wire and third inner wire, wherein the second inner wire is elastic columnar shape body, so that the inner wire of the connector is at relocatable elastomeric connector, pcb board is not damaged in the inner wire junction of the inner wire group and pcb board that make the connector from welding.In test signal, especially radiofrequency signal, connection error is small, can quick and precisely test its radio-frequency performance.

Description

A kind of elastomeric connector of soldering-free type test microstrip circuit

【Technical field】

The utility model is related to the electrical conduction technical field of connector, especially a kind of relocatable elastic microstrip circuit is surveyed Try connector.

【Background technology】

Currently, PCB microstrip circuits on vector network analyzer test radio frequency energy when, first will be in radio frequency (RF) coaxial connector Conductor is welded on using the modes such as soldering on the inner wire of tested pcb board, then with modes such as screws by connector and pcb board Outer conductor link together, this connection type can make test result by welding quality, such as the size of solder joint, product ground connection etc. The influence of factor, and this connection type can damaged portion welding pcb board.

To overcome the shortcomings of existing method, the utility model provides a kind of test connector, by radio frequency (RF) coaxial connector The junction of inner wire and pcb board is designed to relocatable elastomeric connector, makes it from welding, and facilitates test.

【Utility model content】

For the connection type of the inner wire and pcb board inner wire of change radio frequency (RF) coaxial connector, welding quality is reduced to surveying The influence of test result, the utility model are connected to PCB plates and connector, test by the way that elastic floating part is arranged on the connectors The radio-frequency performance of PCB.

The utility model is related to a kind of test connectors of relocatable elastic microstrip circuit, are given using following technical scheme To realize：

A kind of elastomeric connector of soldering-free type test microstrip circuit, inner wire group are divided into three parts, are followed successively by first and lead Body, the second inner wire and third inner wire；Wherein the second inner wire is elastic columnar shape body.

The utility model, which further improves, to be：

The elastomeric connector includes outer conductor and inner wire group, and inner wire group is set in outer conductor.

When the elastomeric connector is connect with pcb board, third inner wire is connected to the inner wire of pcb board, third inner wire It is moved to the second inner wire direction by axial compressive force, the second inner wire compressive deformation, the both ends of the second inner wire are respectively with first Inner wire is in close contact with third inner wire；The outer conductor of elastomeric connector is led by flange or threaded connection with the outer of pcb board Body connects.

First inner wire is internally provided with the contact pin or jack being connect with vector network analyzer.

It is provided with insulator between the inner wire group and outer conductor of the elastomeric connector.

The lower face of the outer conductor and the lower face of insulator are same plane, and third inner wire opposing lower end face is under Protrude 0.3-0.6mm in end face.

The outer conductor has been disposed radially embedding hole, and insulator has been disposed radially embedding hole, embedding hole and embedding hole Coaxial and diameter is equal；First inner wire circumferentially offers embedding straight slot corresponding with embedding hole；The groove width of embedding straight slot is small In the diameter of through-hole；Outer conductor, insulator and the first inner wire in Embedding Material embedding to through-hole and embedding straight slot by will consolidate Fixed connection.

The insulator is provided with the step for preventing inner conductor component from falling, and outer conductor is provided with the platform of compensation high frequency performance Rank.

Compared with prior art, the utility model has the advantages that：

The utility model is related to the elastomeric connector that a kind of soldering-free type tests microstrip circuit, inner wire group is divided into three Point, wherein the second inner wire is elastic columnar shape body so that the inner wire group of the connector becomes relocatable elastomeric connector, should The inner wire group of connector and the inner wire junction of pcb board do not damage PCB plates from welding.In test signal, especially When radiofrequency signal, connection error is small, can quick and precisely test its radio-frequency performance.

Further, the utility model connector is divided into outer conductor and inner wire group, by the outer conductor of connector with The flange of pcb board outer conductor or threaded connection so that inner wire group is by unidirectional pressing force；It is inside by third inner wire The mobile compression with the second inner wire inside conductor group, makes three inner wires closely connect, when realizing measurement pcb board radio-frequency performance Signal propagate.The structure is convenient and simple, and test is accurate, and does not damage pcb board, and the test time saves time, and facilitates test, can Improve working efficiency.

Further, the utility model third inner wire stretches out 0.3- relative to the lower face of outer conductor and insulator 0.6mm, when being connect with pcb board with realizing, the compression of entire inner wire group.

Further, it is provided with insulator between the utility model inner wire group and outer conductor, can support inner conductor component. Further, it is fixed by embedding between the utility model outer conductor, insulator and inner conductor component, further strengthening electronic device The globality of part, and reduce leakage situation in signals transmission.

Further, the insulator of the utility model is ladder-like, to prevent the parts such as inner wire group from falling；Outer conductor is set It sets ladder-like；In order to compensate for high frequency performance, when third inner wire is compressed, interior insulator is formed between an air annular Gap, at this time electrical property be affected, adjust outer conductor diameter impedance can be made to reach reflection is minimum, and electrical property reaches best.

【Description of the drawings】

Fig. 1 is the structural schematic diagram of the utility model elastomeric connector；

Fig. 2 is the embedding through-hole structure schematic diagram of the utility model elastomeric connector insulator；

Fig. 3 is the embedding straight slot structural schematic diagram of the first inner wire of the utility model elastomeric connector；

Use state diagram when Fig. 4 the utility model elastomeric connectors are connect with PCB；

Fig. 5 is the partial enlarged view of part A in the utility model Fig. 4；

Wherein：The first inner wires of 1-；The second inner wires of 2-；3- third inner wires；4- insulators；5- outer conductors；6- contact pins Or jack；7- limiting tools；8- insulator steps；9- insulators bottom end；10- outer conductor steps；11- outer conductors bottom end；12- Screw；13-PCB plates；14- outer conductor embedding through-holes；15- insulator embedding through-holes；16- the first inner wire embedding straight slots；17- The inner wire of pcb board；The annular gaps 18-.

【Specific implementation mode】

The utility model is described in further detail below in conjunction with the accompanying drawings：

As shown in Figure 1, the utility model elastomeric connector includes inner wire group, outer conductor 5 and insulator 4.In wherein Conductor group is divided into 3 parts, is followed successively by the first inner wire 1, the second inner wire 2, third inner wire 3；It is provided in first inner wire 1 Contact pin or jack 6, the second inner wire 2 are elastic columnar shape body；When elastomeric connector assembles, third inner wire 3, the second inner wire 2 And first inner wire 1 be assembled in successively in insulator 4, formed assembly, by assembly be packed into outer conductor 5 in, then will limit Tooling 7 fits into outer conductor 5, and the bottom end 11 of outer conductor 5 is disposed on the same plane with the bottom end 9 of insulator 4, is led in third Body 3 protrudes plane 0.3-0.6mm, and the setting of the numerical value derives from the second inner wire 2, the decrement of elastic columnar shape body.It is anti- Only the parts such as insulator 4 and third inner wire 3 are fallen from the bottom end of outer conductor 5, and insulation is arranged at bottom face in insulator Sub- step 8；When connector is connect with pcb board, 3 stress of third inner wire is moved to the direction of the second inner wire 2, with insulator The air gap 18 is formed between 4；Exist when third inner wire 3 is compressed between third inner wire 3 and insulator step 8 Certain the air gap.After epoxy resin adhesive curing, limiting tool 7 is removed, ensures that the interface of connector meets the requirements.

Fig. 2 is the schematic diagram of the insulator embedding through-hole 15 of insulator 4, and Fig. 3 is showing for 1 embedding straight slot 16 of the first inner wire It is intended to.It can be seen that in design in conjunction with Fig. 1 to Fig. 3, to ensure that outer conductor 5, insulator 4 and inner wire group are fixed together, Coaxial embedding through-hole, the insulator embedding of outer conductor embedding through-hole 14 and insulator is respectively set in outer conductor 5 and insulator 4 15 diameter of through-hole is equal, and the first inner wire 1 is along its circumferentially disposed embedding straight slot 16 corresponding with two coaxial embedding through-holes, embedding The groove width of straight slot 16 is less than the diameter of embedding through-hole.Inner wire group, insulator 4, outer conductor 5 and workpiece 7 are assembled into elasticity even After connecing device, Embedding Material is poured into outer conductor embedding through-hole 14, insulator embedding through-hole 15 and embedding straight slot 16, Embedding Material From one end embedding of outer conductor embedding through-hole 14 to 14 other end of outer conductor embedding through-hole, outer conductor 5, insulator 4 is made to be led with interior Body group forms fixed structure.Embedding Material is preferably epoxy resin.

As shown in figure 4, when the utility model elastomeric connector is connect with pcb board 13,5 both ends of outer conductor of elastomeric connector It is tightened in by connection types such as flanged joint or threaded connections on the outer conductor of tested pcb board 13, during tightening, the Three inner wires 3 are because by axial force, 0.3-0.6mm, Jin Erzao are moved in the part for protruding insulator 4 to the second inner wire direction At the contraction distortion of the second inner wire 2, entire inner wire is made to form the state of close communication.

As shown in figure 5, third inner wire 3 is compressed, 4 inside of insulator forms an air annular gap 18, connects at this time The electrical property for connecing device is affected, and in order to compensate for the high frequency performance of connector, outer conductor step 10 is arranged in outer conductor 5.

When specific test, the contact pin or jack 6 of the first inner wire of elastomeric connector 1 and vector network analyzer connector Connector end connects, 2 compressive deformation of the second inner wire, and the close connection of third inner wire 3 and the inner wire 17 of pcb board passes through The transmission of signal, and then vector network analyzer test pcb board 13 micro-strip electricity are realized in the close connection of three inner wires of connector The radio-frequency performance on road.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection domain within.

Claims (8)

1. a kind of elastomeric connector of soldering-free type test microstrip circuit, which is characterized in that the inner wire group of elastomeric connector is divided into Three parts are followed successively by the first inner wire (1), the second inner wire (2) and third inner wire (3)；Wherein the second inner wire (2) is bullet Property column.

2. a kind of elastomeric connector of soldering-free type test microstrip circuit according to claim 1, which is characterized in that elasticity is even It includes outer conductor (5) and inner wire group to connect device, and inner wire group is set in outer conductor (5).

3. a kind of elastomeric connector of soldering-free type test microstrip circuit according to claim 2, which is characterized in that with PCB When plate (13) connects, third inner wire (3) is connected to the inner wire (17) of pcb board, and third inner wire (3) is by axial compressive force to the Two inner wires (2) direction is moved, the second inner wire (2) compressive deformation, the both ends of the second inner wire (2) respectively with the first inner wire (1) it is in close contact with third inner wire (3)；The outer conductor (5) of elastomeric connector is by flange or is threadedly coupled and pcb board (13) Outer conductor connection.

4. a kind of elastomeric connector of soldering-free type test microstrip circuit according to claim 1-3 any one, feature It is, the first inner wire (1) is internally provided with the contact pin being connect with vector network analyzer or jack (6).

5. a kind of elastomeric connector of soldering-free type test microstrip circuit according to claim 1, which is characterized in that elasticity is even It connects and is provided with insulator (4) between the inner wire group of device and outer conductor (5).

6. a kind of elastomeric connector of soldering-free type test microstrip circuit according to claim 5, which is characterized in that outer conductor (5) outer conductor bottom end (11) and the insulator bottom end (9) of insulator (4) are same plane, third inner wire (3) opposing insulation Sub- bottom end (9) protrudes 0.3-0.6mm.

7. a kind of elastomeric connector of soldering-free type test microstrip circuit according to claim 5, which is characterized in that outer conductor (5) it has been disposed radially outer conductor embedding through-hole (14), insulator (4) has been disposed radially insulator embedding through-hole (15), outside Conductor embedding through-hole (14) is coaxial with insulator embedding through-hole (15) and diameter is equal；First inner wire (1) circumferentially offers Embedding straight slot (16) corresponding with insulator embedding through-hole (15)；The groove width of embedding straight slot (16) is less than the diameter of through-hole；It leads outside Body (5), insulator (4) and the first inner wire (1) by fixed in Embedding Material embedding to through-hole and embedding straight slot (16) by connecting It connects.

8. a kind of elastomeric connector of soldering-free type test microstrip circuit according to claim 5-7 any one, feature It is, insulator (4) is provided with the insulator step (8) for preventing inner conductor component from falling, and compensation connector is arranged in outer conductor (5) The outer conductor step (10) of high frequency performance.