TWM445801U - Device for connecting coaxial cable onto a circuit board - Google Patents

Description

Device for connecting a coaxial cable to a circuit board

The present invention relates to a device for connecting a coaxial cable to a circuit board, and a structure comprising the device and a coaxial cable and a circuit board.

In order to connect a coaxial cable to a circuit board, that is to say a carrier component having a circuit, the individual wires on the coaxial cable, that is, the outer wires and the inner wires, often simply correspond to the conductive pipes on the circuit board. Soldered together to form an electrically conductive and mechanical connection between the circuit board and the coaxial cable. This type of connection is particularly labor intensive due to the complexity of the soldering location and is therefore quite time consuming. The connection cannot be lifted again.

Alternatively, it can be implemented by means of plugging between the wires of the coaxial cable and the circuit board. For example, the connector disclosed in the European patent EP 0 848 459 A2 is a connector which is permanently and coaxially connected to the coaxial cable. The inner wire is connected, and comprises a ring-shaped outer wire portion, and a plug-shaped inner wire portion located inside the coaxial wire portion and coaxial with the same, in order to form a connection between the coaxial cable and the circuit board, the connector plugged with the coaxial cable Connected to the corresponding opening of the circuit board, the opening is made of a metal material, thereby forming an electrical connection between the coaxial cable and the circuit on the circuit board, the opening thus comprising a centrally located plug and a passage opening in contact with the inner lead portion, and an annular opening coaxially mounted and contacting the lead portion corresponding to the plug. To ensure the stability of the connection, the plug is mechanically fixed to the electric On the road board.

The main function of this creation is to provide a better device for connecting coaxial cable to the circuit board. The device of this creation is especially for a more economical production cost, and can independently test its functionality in the production process without considering the future. The installation location.

The device disclosed in the present application for connecting a coaxial cable and a circuit board is an outer wire contact component that can be permanently fixed to the half of the circuit board, a wire contact component that can be permanently fixed to the lower half of the circuit board, and a The wire contact plug is permanently fixed on the wire other than the coaxial cable, wherein the outer wire contact plug can be inserted on or in the outer wire contact component, and can be fixed at the position, and the inner wire of the coaxial cable It can be inserted into the inner wire contact element or can be removed.

The device for connecting a coaxial cable and a circuit board disclosed in the present invention is relatively simple in structure design, and therefore is inexpensive to manufacture. The creation itself includes all necessary components capable of forming a conductive contact, and these components only need to be correspondingly assembled. The components, that is, the wires of the circuit board and the coaxial cable can be connected (preferably for permanent connection), so that the device itself can be inspected during the production process, for example, and passed the quality inspection process before being sold.

In order to make the conductive contacts of the components constituting the authoring device easy to detect, the present invention is preferably designed such that the assembly between the outer wire contact plug and the outer wire contact member can be removed without damage.

In a preferred embodiment of the present invention, the outer wire contact member has a spring ring, and the spring ring is provided with a resilient buckle to accommodate the outer wire contact. The plug, the design of the outer wire contact element, is the basis for most of the advantages of subsequent assembly.

For example, the resilient buckle of the outer lead contact element has a projection or groove that is mounted radially inwardly, and the outer lead contact plug has (at least) a recess or (at least) a protrusion, thereby facilitating and At the same time, the cost-saving quick connector method implements this creation.

In addition, the outer lead contact member has a spring ring for forming a permanent and stable axial force between the outer lead contact plug and the outer lead contact member, and can be pressed against each other, so that no additional between the components is required. The preferred embodiment of the concept is that the outer wire contact element and the outer wire contact plug have an additional bevel through which the radial force generated by the elastic buckle on the outer wire contacting the plug is provided. An axial force component can be generated.

The positive conductive contact between the inner wire contact element and the inner wire of the coaxial cable (especially the wire made of the whole conductor) is preferentially achieved by a spring ring having an elastic buckle around the inner wire contact element, the elastic buckle There is at least some slight radial offset when the wires are inserted within the coaxial cable, whereby each single elastic buckle can be secured to the periphery of the inner conductor by an (elastic) stress.

The structure disclosed in the present application comprises at least one coaxial cable, a circuit board, and a device disclosed in the present invention for attaching a coaxial cable to a circuit board.

The preferred implementation means that the connection between the outer conductor contact element and the upper half of the board, and/or the inner conductor contact element and the lower half of the board The connection between the connection and/or the outer wire contact plug and the wire other than the coaxial cable is spot welding.

For the purpose of achieving the above-mentioned purpose and effect of the above-mentioned use, a preferred and feasible embodiment will be described, and the details are as follows:

The present invention comprises a coaxial cable 1, a circuit board 2, and a device for connecting the coaxial cable 1 to the circuit board 2 according to the present invention, as shown in the first to sixth figures.

The coaxial cable 1 comprises an inner conductor 3 and a conductor 5 insulated from the inner conductor 3 by an insulator 4, the outer conductor 5 being a wire braid and surrounded by an insulating protective layer 6, such as a third The figure shows.

The circuit board 2 includes a carrier board 7 made of an insulating material, and a circuit (not shown) mounted on the carrier board 7 made of a conductive material.

The coaxial cable 1 can be connected to the individual components on the circuit board 2, as shown in the second figure, which includes a wire contact plug 8 in the shape of a socket, so that the insulated end of the wire 5 outside the coaxial cable 1 can be plugged into The outer wire contacts the plug 8, such that the outer edge of the outer wire 5 and the outer wire contact the inner edge of the plug 8 to make electrical contact, and the permanent connection between the coaxial cable 1 and the outer wire contact plug 8 can be made by the outer wire 5 Spot welding with the outer wire contact plug 8 is achieved.

The outer lead contact plug 8 has a through opening 9 in the center of the plug end through which the inner conductor 3 of the coaxial cable 1 can be inserted.

The device for attaching the coaxial cable 1 to the circuit board 2 comprises an outer wire contact element 10 having a plurality of elastic buckles including a periphery. The outer ring contact member 10 has an annular and radial contact surface on the side of the circuit board, and a coaxial protrusion 12, the outer diameter of the protrusion 12 is only slightly smaller than the through opening on the circuit board 2. The diameter of 13 can be used to fix the outer wire contact member 10 in the through opening 13 of the circuit board 2, and the permanent wire between the outer wire contact member 10 and the circuit board 2 can be made by the outer wire. The contact faces on the contact elements 10 (i.e., the contact faces and the peripheral faces of the projections 12) are spot welded to corresponding contact faces on the circuit board 2.

The device for connecting the coaxial cable 1 to the circuit board 2 comprises an inner wire contact element 14 which also has a plurality of coils of a plurality of annularly arranged elastic buckles 15 for accommodating the inner conductor of the coaxial cable 1. At the open end of the third end, the inner wire contact element 14 also has an annular, radial contact surface on the side of the circuit board and a convex body 16 which can be fixed to the through opening 13 of the circuit board 2, and the outer wire contact element 10 Similarly, the permanent connection between the inner wire contact member 14 and the circuit board 2 can be spot-welded to the circuit board 2 by contacting the contact surface of the inner wire contact member 14 (that is, the contact surface and the circumferential surface of the protrusion 16). It is formed on the corresponding contact surface.

When assembling the structure of the present invention, firstly, one end of the coaxial cable 1 is separated, so that the inner wire 3 and the outer wire 5 are independent of each other for a fixed length (as shown in the third figure), and then the outer wire contacts the plug 8 Connected to the open end of the coaxial cable 1, and the open end of the outer conductor 5 is connected to the outer conductor contact plug 8 via spot welding, at which time one of the open ends of the inner conductor 3 can pass through the outer conductor contact plug 8.

Next, the corresponding outer conductor contact members 10 and the inner conductor contact members 14 are respectively mounted in the through openings 13 of the circuit board 2 On the surface, and separately soldered together with the circuit board 2.

In order to make the outer wire 5 and the inner wire 3 respectively make electrical contact with the circuit on the circuit board 2, the outer wire contact plug 8 having the outer wire contact plug 8 at one end of the coaxial cable 1 is inserted into the outer wire contact component 10 and the inner wire contact component 14, At this time, the wire contact plug 8 and the wire contact member 10 connected to the corresponding circuit are connected to the outer wire 5, and the inner wire 3 of the coaxial cable 1 and the inner wire contact member 14 connected to the corresponding circuit are connected. Between the conductive and mechanical connections can be formed.

The connection between the inner wire and the inner wire contact element is a press-fit form, wherein the elastic buckle of the spring ring on the inner wire contact element is offset (slightly) outward due to the insertion of the inner wire, thereby forming An elastic stress, the element can be pressed against the outer side of the inner conductor via the fixed stress.

The connection between the wire contact plug 8 and the wire contact member 10, which is permanently connected to the outer wire 5 of the coaxial cable 1, and the wire contact member 10, which is permanently connected to the circuit board 2, is a mutual fastening form, and the mutual fastening connection is Formed by the outer wire contacting the spring coil of the plug 8, the inner side of the elastic buckle 11 on the spring ring respectively has a radially inward inner periphery protrusion 17, which can respectively grasp the outer protrusion contacting the outer protrusion on the outer side of the plug 8. After 18, when the outer wire contact plug 8 is inserted into the outer wire contact member 10, the outer wire contacts the outer protrusion 18 on the outer side of the plug 8, so that the elastic buckle 11 is first radially outwardly displaced, and then elastically retracted. The elastic buckle 11 is fixed to the rear of the outer protrusion 18 on the outer side of the plug 8 by the stress.

The outer protrusion 18 of the outer lead contact plug 8 and the inner protrusion 17 of the elastic buckle 11 of the outer lead contact element 10 are both beveled structures, Applying an axial force that exceeds a fixed threshold and upwards (as shown in the first figure) allows the quick contact between the outer conductor contact plug 8 and the outer conductor contact element 10 to be easily and non-destructively removed.

The outer conductor of the beveled structure contacts the peripheral projection 18 of the plug 8, and the inner projection 17 of the elastic buckle 11 of the outer conductor contact member 10, the function of which is that the outer conductor contacts the radial contact surface of the front end of the plug 8 and the outer conductor The corresponding radially opposite contact faces of the inner circumference of the contact element 10 are pressed against each other by a fixed axial force. This function can be achieved by the following: the elastic buckle 11 of the spring ring on the outer wire contact element 10 is loaded After that, that is, after the outer protrusion 18 of the outer wire contact plug 8 is buckled, there may be a fixed amount of offset, whereby the radial force acts on a corresponding segment of the outer wire contacting the circumference of the plug. The radial force can generate an axial force component due to the design contact surface of the outer lead contact plug 8 and the outer projection 18 of the outer lead contact member 10 and the inner peripheral projection 17 inclined relative to the long axis of the assembly. The component can press the outer wire contact plug 8 against the outer wire contact element 10 in the direction of the board.

In summary, the present application has achieved the intended purpose and effect, and is more desirable and practical than the prior art. However, the above embodiments are only specifically described for a preferred embodiment of the present invention. This embodiment is not intended to limit the scope of the invention, and all other equivalents and modifications may be included in the scope of the invention covered by the present invention.

1‧‧‧Coaxial cable

10‧‧‧External wire contact elements

11‧‧‧Flexible buckle

12‧‧ ‧ convex

13‧‧‧through opening

14‧‧‧Internal wire contact elements

15‧‧‧Flexible buckle

16‧‧‧Bulge

17‧‧‧Neighboring objects

18‧‧‧ peripheral protrusions

2‧‧‧ boards

3‧‧‧Internal conductor

4‧‧‧Insulator

5‧‧‧External wire

6‧‧‧Protective layer

7‧‧‧ Carrier Board

8‧‧‧External wire contact plug

9‧‧‧through opening

The first figure shows a schematic diagram of the combined use of the present embodiment.

The second figure is a schematic exploded view of the present embodiment.

The third figure is a schematic diagram of a coaxial cable pre-prepared for connection to a circuit board according to the present embodiment.

The fourth figure is a schematic view of the first step of structural assembly of the present embodiment.

The fifth figure is a schematic view showing the second step of structural assembly of the present embodiment.

The sixth figure is a schematic view showing the third step of structural assembly of the present embodiment.

1‧‧‧Coaxial cable

10‧‧‧External wire contact elements

11‧‧‧Flexible buckle

12‧‧ ‧ convex

13‧‧‧through opening

14‧‧‧Internal wire contact elements

15‧‧‧Flexible buckle

16‧‧‧Bulge

17‧‧‧Neighboring objects

18‧‧‧ peripheral protrusions

2‧‧‧ boards

3‧‧‧Internal conductor

5‧‧‧External wire

6‧‧‧Protective layer

7‧‧‧ Carrier Board

9‧‧‧through opening

Claims (7)

A device for connecting a coaxial cable to a circuit board, having a wire contact component fixed to a half of the circuit board, an inner wire contact component fixed to a lower half of the circuit board, and an outer wire contact plug The wire is fixed to the wire outside the coaxial cable, wherein the outer wire contact plug is plugged and fixed in or on the outer wire contact component, and the inner wire of the coaxial cable can be inserted into the inner wire contact component. The device for attaching a coaxial cable to a circuit board according to claim 1, wherein the outer wire contact plug can be inserted into or on the outer wire contact member in a manner of spot welding. . The device for connecting a coaxial cable to a circuit board according to the first aspect of the invention, wherein the outer wire contact member is provided with a spring ring having a plurality of elastic buckles for receiving the outer wire contact plug . The device for attaching a coaxial cable to a circuit board according to claim 3, wherein the elastic buckle on the outer wire contact member has a radially arranged protrusion or groove, and the outer wire The contact plug has a groove or protrusion to form a quick connector. The device for attaching a coaxial cable to a circuit board according to claim 1, wherein the outer wire contact member and the outer wire contact plug have an additional slope, whereby the outer wire can be contacted by the elastic member The radial force acting on the outer wire contact plug of the buckle creates an axial force. The device for connecting a coaxial cable to a circuit board according to claim 1, wherein the inner wire contact member is provided with a plurality of The spring ring of the elastic buckle can be used to accommodate the inner wire. The device for attaching a coaxial cable to a circuit board according to claim 1, wherein the outer wire contact member and the upper half of the circuit board are connected, and/or the inner wire contacts the component and the circuit The connection between the lower half of the board and/or the connection between the outer conductor contact plug and the conductor other than the coaxial cable is spot welding.