CN1133252C - Method for electrically connecting coaxial cable to circuit board - Google Patents

Abstract

The present invention relates to a method for electrically connecting coaxial cables to circuit boards, which comprises the following step: a welded gasket installing step, a through hole installing step, a cable fixing step and a connecting step. The present invention is characterized in that welded gaskets are arranged on the circuit boards in row, through hole penetrating the circuit boards are arranged at the sides of the welded gaskets, coaxial cables are inserted in the through holes on the circuit boards from the side faces of the circuit boards, which are not provided with the welded gaskets, and are penetrated to the side faces of the circuit boards, which are provided with the welded gaskets, to cause each coaxial cable to be positioned at the side of each corresponding welded gasket; braid layers and conducting wires of the coaxial cables which are positioned are separated, and the braid layers and conducting wires are respectively welded on the corresponding welded gaskets which are in rows.

Description

The method of electrically connecting coaxial cable to circuit board

The present invention is a kind of with the method on the electrically connecting coaxial cable to circuit board, refers in particular to a kind of welding method that is used to locate between high density coaxial cable and circuit board.

The prior art relevant with this case shown in No. 84201894 case of Taiwan patent application a kind of cable ends connector and the direct winding mode of coaxial cable, in order to adapt to the needs of high density coaxial cable transmitting signals, this early stage direct winding mode develops into the electric connection of reaching coaxial cable and end connector by a switching circuit board gradually, relevant prior art such as No. 84200785 case of Taiwan patent application disclose, these adopt in the connected mode of switching circuit board, and the joint method of coaxial cable and circuit board has following two kinds of common forms again.See also Fig. 1, it has disclosed a kind of existing coaxial cable 6 and switching circuit board 7 interconnective methods, and this coaxial cable 6 comprises several wire cable 61, and in a row is laid with corresponding junction point 71 on the circuit board 7, when the two connects, be about to each cable 61 and be welded on the corresponding engagement point 71.See also Fig. 2 again, it has disclosed another kind of existing coaxial cable 8 and switching circuit board 9 interconnective methods, its lead 811 with coaxial cable 8 Internal cable 81 is welded on the junction point 91 that is arranged at circuit board 9 one sides, and the braid 812 of cable 81 is welded on the junction point of circuit board 9 another sides (not shown).But, utilize the resulting finished product of joint method of these existing coaxial cables and switching circuit board to have common weak point, be that cable can not be fixed before welding, therefore, can't with junction point contraposition accurately rapidly, especially for the higher circuit board of junction point density, this shortcoming will make very inconvenience of welding operation, and then cause that welding efficiency descends.Have again, because cable is with respect to only relying on the junction point to provide fixing spacing between the circuit board, when cable is subjected to external force and influences, this junction point will bear bigger destructive power, especially under the situation of junction point very high density, this bigger destructive power might make cable break away from the junction point and cause opening circuit, and then causes telecommunication and transmit consequences such as instability.

One of purpose of the present invention is to provide a kind of method and finished product of electrically connecting coaxial cable to circuit board, guarantees that by the through hole that is arranged between the circuit board welded gasket coaxial cable can be accurately positioned on the circuit board, is beneficial to welding operation.

For achieving the above object, the method of electrically connecting coaxial cable to circuit board of the present invention mainly comprises following each step: one, lay the welded gasket step, welded gasket is laid in the appropriate position on circuit board, and these welded gaskets are laid in the mode in a row of at interval suitable distance; Two, the through hole step is set, lays the through hole that runs through circuit board in the welded gasket side appropriate location that circuit board sets in a row; Three, fixed cable step is passed through the another side that through hole corresponding on the circuit board is through to circuit board with coaxial cable from the side that circuit board is not provided with welded gasket, and extends suitable length at corresponding welded gasket side; Four, separated wires step is separated the braid of these coaxial cables of having had good positioning with lead, make braid and lead different rows' welded gasket position on the alignment circuit plate respectively; Five, engagement step is engaged to braid and lead respectively on pairing separately different row's welded gasket, thereby obtains finished product.

According to above-mentioned feature, wherein in engagement step, the wire-bonds of this coaxial cable is on row's welded gasket of circuit board tool telecommunication transmitting effect, braid then is bonded on another row's welded gasket of circuit board tool ground connection effect, thereby the grounded circuit that constitutes cable prevents that to get rid of the static on the coaxial cable phenomenon of electromagnetic interference takes place each other.

The invention has the advantages that: coaxial cable can be accurately positioned on the circuit board before welding, is convenient to welding, has preferable welding effect, and can the phase mutual interference between the each several part in the coaxial cable, is convenient to the detection that coaxial cable is laid.

The present invention is further illustrated below in conjunction with drawings and Examples.

Fig. 1 is the stereogram of existing coaxial cable and circuit board winding one gained finished product.

Fig. 2 is the stereogram of existing another kind of coaxial cable and circuit board winding one gained finished product.

Fig. 3 is the flow chart of coaxial cable of the present invention and circuit board method of attachment.

Fig. 4 to Fig. 8 is the schematic diagram of coaxial cable of the present invention and each manufacturing step of circuit board method of attachment.

Fig. 9 is with the stereogram after process coaxial cable of the present invention and circuit board method of attachment gained finished product and the end connector combination.

See also Fig. 3 to shown in Figure 8, the method of electrically connecting coaxial cable to circuit board of the present invention comprises laying welded gasket steps A, steps such as through hole step B, fixed cable step C, separated wires step D and engagement step E is set, wherein laying the welded gasket steps A is that first welded gasket 42 and second welded gasket 43 that two rows are parallel to each other and keep at a certain distance away is set in the appropriate position, same side of switching circuit board 4, and this first welded gasket 42 and the identical and corresponding separately setting of second welded gasket, 43 numbers.This is provided with through hole step B and lays the through hole 41 that runs through switching circuit board 4 between first welded gasket 42 and second welded gasket 43, and the number of this through hole 41 is identical with first, second welded gasket number and the position is corresponding.Fixed cable step C inserts the several wire cable 21 of coaxial cable 2 inside in the corresponding through hole 41 from the side correspondence that built-up circuit plate 4 is not provided with welded gasket, and run through the another side that is exposed to switching circuit board 4 and extend suitable length, because these cables 21 have the preferable insulated hull of elasticity 212, after cable 21 is inserted in the through hole 41, this insulated hull 212 can form with the madial wall of through hole 41 and flexibly support, thereby cable 21 is positioned in the through hole 41.On the basis that separation cable step D has obtained to locate at cable 21, the part that cable 21 is extended the welded gasket side is carried out the mechanical type separation, that is to say, lead that it is inner 210 be coated on the braid 211 in lead 210 outsides separately to first, second welded gasket 42,43 extend, and aim at corresponding welded gasket position, and the insulation shell 22 that is coated on braid 211 outsides is promptly being removed near through hole 41 positions, 212 of insulated hulls that are arranged between lead 210 and the braid 211 are removed after braid 211 separated parts continue to extend upward suitable length, to prevent the phenomenon that is short-circuited between braid 211 and the lead 210.Engagement step E connects and makes finished product then through heat treated or process accordingly and the lead 210 of cable 21 and braid 211 are fixed in respectively on first welded gasket 42 and second welded gasket 43 with the telecommunication of reaching 4 of cable 21 and switching circuit boards.

See also the finished product that Figure 9 shows that coaxial cable of the present invention and circuit board method of attachment gained and end connector 3 stereogram after combined again.This coaxial cable 2 is bonded on the welded gasket of switching circuit board 4, switching circuit board 4 then is electrically connected on the connector matrix 5 with respect to another lateral margin of winding coaxial cable 2, the outside at this switching circuit board 4 and connector matrix 5 is provided with suitable covering and seal (not shown) again, can form an end connector 3.

Connect coaxial cable 2 and switching circuit board 4 by said method, cable 21 promptly is fixed before welding, and when this coaxial cable 2 produces motion with respect to switching circuit board 4 after the welding if be subjected to the external force effect, its position of bearing external force will be positioned at through hole 41 cooperation positions of cable 21 and switching circuit board 4, thereby can make the lead 210 and the junction of welded gasket 42 bear minimum external force influence, with the bond stability of guaranteeing the two and obtain preferable welding quality, and, can make things convenient for the contraposition of coaxial cable 2 and welded gasket, improve welding efficiency, it is neat that its finished product has pad in addition, outward appearance is good and be convenient to advantage such as detection.

Claims (8)

1. the method for an electrically connecting coaxial cable to circuit board may further comprise the steps: lay the welded gasket step, in a row lay welded gasket on circuit board; It is characterized in that: this method is further comprising the steps of: the through hole step is set, lays the through hole that runs through circuit board at the welded gasket side that circuit board sets in a row; The fixed cable step, with coaxial cable in the side that circuit board is not provided with welded gasket is inserted in through hole corresponding on the circuit board and be through to the another side of circuit board, so that each coaxial cable is positioned corresponding welded gasket side; The separated wires step, it separates lead in each bar cable and the braid that is coated on the lead outside, and lead and braid are aimed at two different welded gasket positions of arranging respectively; Engagement step, the lead and the braid correspondence that these have been fixed and have aimed at welded gasket according to the needs of telecommunication transmission are bonded on the welded gasket of circuit board.

2. the method for electrically connecting coaxial cable to circuit board according to claim 1, it is characterized in that: two rows that the number welded gasket of corresponding coaxial cable is set to keep at a certain distance away in this laying welded gasket step, and the number of every row's welded gasket is equal to the number of coaxial cable.

3. the method for electrically connecting coaxial cable to circuit board as claimed in claim 2 is characterized in that: this through hole is arranged between two row's welded gaskets, and its number also equates with the number of coaxial cable.

4. the method for electrically connecting coaxial cable to circuit board as claimed in claim 3, it is characterized in that: the braid with coaxial cable in engagement step is bonded on same row's welded gasket of circuit board, and the lead of coaxial cable is bonded on another row's welded gasket of circuit board.

5. coaxial cable connector combination, comprise: coaxial cable, formed by the several wire cable, wherein each root cable inside includes at least one lead that can transmit telecommunication, and each root lead all has braid outward, to provide electromagnetic shielding action to inner separately lead; Be installed in the end connector of coaxial cable end, comprise the structures such as switching circuit board that are used for the connector matrix that docks with other electronic installations and are used to electrically connect coaxial cable and this connector matrix, and have on this switching circuit board and set in a row and welded gasket separated by a distance, it is characterized in that: be provided with the through hole that runs through switching circuit board in this welded gasket side position that sets in a row, so that coaxial cable passes and obtain the location in this through hole.

6. coaxial cable connector combination as claimed in claim 5 is characterized in that: the welded gasket on the switching circuit board is that two rows be arranged in parallel, and through hole then is arranged between this two rows welded gasket.

7. coaxial cable connector combination as claimed in claim 6, it is characterized in that: the lead of each cable is bonded on same row's welded gasket of switching circuit board, and its braid then is bonded on another row's welded gasket.

8. coaxial cable connector combination as claimed in claim 7 is characterized in that: row's welded gasket that switching circuit board engages with the coaxial cable braid and the ground path on the switching circuit board are conducted.

Images