TWI525945B - Coaxial connector and coaxial connector assembly having the same - Google Patents

Description

Coaxial connector and combination thereof

The present invention relates to a coaxial connector and a combination thereof, and more particularly to a cable coaxial connector.

For a conventional technique related to the present invention, please refer to the Republic of China Publication No. M404525, which discloses a cable coaxial connector including a cable and a coaxial connector connected to the cable. The coaxial connector comprises an insulative housing, a signal terminal received in the insulative housing, and a shielding housing covering the outside of the insulating body. The insulative housing has opposite abutting surfaces and a bottom surface, and the insulative housing has a terminal slot extending through the mating surface and the bottom surface thereof, and the signal terminal is received in the terminal slot. The shielding case has an annular portion and a shielding portion. The annular portion is disposed on the periphery of the insulating body, and the shielding portion is pressed against one surface of the insulating body to securely fix the signal terminal in the terminal slot. The cable coaxial connector is usually docked with a board end coaxial connector, and the board end coaxial connector is mounted on a circuit board. The board end coaxial connector also includes an insulative housing, a signal terminal received in the insulative housing, and a shielded housing covering the insulative housing. The shielding shell also has an annular portion which is disposed on the periphery of the insulating body. The shielding ring of the cable coaxial connector has a rib on the periphery of the shielding shell, and the peripheral ring of the shielding shell of the board-end coaxial connector is provided with a ring groove. When the two coaxial connectors are butted, the ribs are snap-fitted to the ring groove. However, due to the small size of the product, in the actual application, the joint force between the rib and the ring groove is insufficient, and the vibration is slight. It is easy to cause the cable coaxial connector to fall off from the board end coaxial connector.

Therefore, it is necessary to provide a coaxial connector and a combination thereof that can solve the above problems.

It is an object of the present invention to provide a coaxial connector that can be stably docked.

In order to achieve the above object, the present invention adopts the following technical solution: a coaxial connector includes an insulative housing, a signal terminal fixed to the insulative housing, and a shielding housing, the shielding housing includes a cylindrical portion, and the signal terminal has a inner side of the cylindrical portion In the contact portion, the shield case is provided with a fixing arm formed on the outer side of the cylindrical portion and extending from the bottom surface of the cylindrical portion, and the fixed arm extends in the direction of the abutting surface of the cylindrical portion with respect to the bottom surface.

In contrast to conventional techniques, the coaxial connector of the present invention has the advantage that the coaxial connector can have a stable snap force by providing a fixed arm in the shield housing.

Another object of the present invention is to provide a coaxial connector assembly that can be stably docked.

To achieve the above object, the present invention adopts the following technical solution: a coaxial connector assembly comprising a cable coaxial connector and a board-end coaxial connector mated thereto, the board-end coaxial connector being mounted on a circuit board, the line The outer side of the cable coaxial connector extends from the fixed end of the board end coaxial connector. When the two coaxial connectors are butted, the fixed arm is fixedly engaged with the board end coaxial connector or the circuit board.

Compared with the prior art, the coaxial connector assembly of the present invention has the following advancement: the fixed arm extending from the shielding shell of the cable coaxial connector is snap-fitted with the board end coaxial connector or the circuit board, so that the two coaxial connectors are reliably engaged. .

The invention will now be further described in conjunction with the drawings and embodiments.

300‧‧‧ coaxial connector assembly

100‧‧‧Cable coaxial connector

1‧‧‧Insulating body

11‧‧‧ Main body

12‧‧‧ Fixed Department

13‧‧‧ docking

14‧‧‧ bottom

15‧‧‧ terminal hole

2‧‧‧ Signal Terminal

21‧‧‧Contacts

3‧‧‧Shield housing

31‧‧‧Cylinder

311‧‧‧ ring rib

32‧‧‧Shading Department

33‧‧‧ gripping department

331‧‧‧Clamping piece

34‧‧‧Fixed Arm

341‧‧‧Arc Department

200‧‧‧ board-side coaxial connector

4‧‧‧ boards

40‧‧‧Conductor

41‧‧‧ card slot

5‧‧‧Insulation body

51‧‧‧ Main body

52‧‧‧ base

6‧‧‧ Signal Terminal

61‧‧‧Contacts

62‧‧‧Welding Department

7‧‧‧Shield housing

71‧‧‧Cylinder

711‧‧‧ Ring groove

72‧‧‧Weld Department

721‧‧‧ card slot

1 is a perspective view of a first embodiment of a coaxial connector assembly of the present invention; a second view is a perspective view of a cable coaxial connector of the coaxial connector assembly of the present invention separated from a board end coaxial connector; A perspective view of a cable coaxial connector and a board end coaxial connector; a fourth view is an exploded perspective view of the cable coaxial connector and the board end coaxial connector of the present invention; and a fifth figure is a second of the coaxial connector combination of the present invention A perspective view of an embodiment.

Referring to the first and second figures, the present invention discloses a coaxial connector assembly 300 comprising a cable coaxial connector 100 and a board end that interfaces with the cable coaxial connector. The coaxial connector 200, the board-end coaxial connector 200 is mounted on a circuit board 4.

Referring to the third and fourth figures, the cable coaxial connector 100 includes an insulative housing 1 , a signal terminal 2 received in the insulative housing 1 , and a shield housing 3 covering the insulative housing 1 . The insulative housing 1 has a substantially cylindrical main body portion 11 and a fixing portion 12 for connecting a main body portion for fixing a cable (not shown). The main body portion 11 has an abutting surface 13 and a bottom surface 14 opposite to the mating surface. The insulative housing 1 A terminal hole 15 for receiving the signal terminal 2 is formed through the mating surface 13 and the bottom surface 14. The signal terminal 2 is attached to the bottom surface 14 and connected to the cable, and a pair of clamping contact portions 21 extending at one end thereof protrude into the terminal hole 15. The shield case 3 has a cylindrical portion 31 that is disposed around the periphery of the insulative housing main body portion 11 , a shielding portion 32 that covers the bottom surface 14 of the insulative housing and prevents the signal terminal from coming off the insulating body, and is covered by the fixing portion 12 for clamping. Hold the cable at the clamping portion of the fixing portion 12 33. The pair of holding pieces 331 of the holding portion 33 further fix the insulating body, and the contact portion 21 of the signal terminal is located inside the cylindrical portion 31.

The board-end coaxial connector 200 that interfaces with the cable coaxial connector 100 includes an insulative housing 5, a signal terminal 6 housed in the insulative housing 5, and a shield case 7 covering the insulative housing 5. The insulative housing 5 includes a main body portion 51 in the shape of a barrel and a base portion 52 on the bottom surface of the main body portion. The cylindrical contact portion 61 of the signal terminal 6 protrudes into the main body portion, and the welded portion 62 of the flat plate extends along the bottom surface of the base portion 52 and is soldered to the circuit. Board 4. The shielding case 7 has a cylindrical portion 71 that is disposed on the main body portion 51 of the insulative housing 5 and a soldering portion 72 that is soldered to the circuit board and extends from both sides of the cylindrical portion 71. In combination with the first figure, the circuit board 4 has and is soldered. The portion 72 and the soldering portion 62 of the signal terminal 6 are soldered to form the connected conductive sheet 40. An annular rib 311 protrudes from the periphery of the cylindrical portion 31 of the shield case 3 of the cable coaxial connector 100, and the circumference of the cylindrical portion 71 of the shield case 7 of the plate end coaxial connector 200 is concave toward the center. The ring slot 711 is provided. When the cable coaxial connector is mated with the board end coaxial connector, the signal terminal 2 and the signal terminal 6 are electrically connected, and the two coaxial connectors pass through the annular rib 311 and the ring groove of the shielding case. 711 achieves the buckle. The contact portion 61 is located inside the cylindrical portion 71.

The shielding shell of the coaxial connector is provided with a fixing arm 34 extending from the bottom surface of the cylindrical portion 31 and located outside the cylindrical portion, and the fixing arm extends forwardly to protrude from the opposite bottom surface of the cylindrical portion. The fixed arm acts as a bonding force between the two mating coaxial connectors. Referring to the second and third figures, in the preferred embodiment of the present invention, the shielding portion 32 of the shield case 3 of the cable coaxial connector 100 extends horizontally from the side of the cylindrical portion, and then is bent to form the fixed arm. 34. The fixed arm extends from an outer side of the cable coaxial connector to a board end coaxial connector. The shielding portion 32 extends from opposite side edges of the cylindrical portion 31, and the fixed arms 34 on both sides of the cylindrical portion extend in a relatively inclined manner. Board end coaxial A card slot 41 is formed on the circuit board 4 of the connector, and the card slot 41 is located on the side of the board end coaxial connector. The fixed arms on both sides of the cylindrical portion are symmetric structures, corresponding to the fixed arm. The snap fits on the card slots 41 formed on both sides of the circuit board. When the two coaxial connectors are mated, the fixing arm of the cable coaxial connector is fastened to the card slot, thereby increasing the matching force between the two coaxial connectors, thereby effectively preventing the connectors from being loosened from each other, especially in some vibrations. Frequent occasions. The span between the fixing arms 34 of the shielding shell is slightly smaller than the span between the two card slots of the circuit board, and the inclined fixing arms 34 are held in the card slot by the interference fit, and the ends of the fixing arms extend. A circular arc portion 341 for easy insertion and removal. The extending direction of the shielding portion 32 is perpendicular to the clamping portion 33, and the extending direction of the fixing arm 34 is also perpendicular to the clamping portion. When the two coaxial connectors are mated, the fixing arm can be used for pinching and the two coaxial connectors can be inserted and removed. smooth. As an improvement, the card slot 41 is connected to the grounding path, and the fixing arm 34 integrally extends to the shielding case 3 and is connected to the grounding path of the circuit board. Thus, when the two coaxial connectors are mated, the fixed arm is stable. The cable coaxial connector can be reliably grounded at the same time.

Referring to the fifth embodiment, in another preferred embodiment of the present invention, the board-end coaxial connector 200 is provided with a pair of card slots adjacent to the circuit board. For example, the shield housing 7 of the board-end coaxial connector 200 is perpendicular to The soldering portion 72 of the cylindrical portion extends longer, and the soldering portion is provided with a card slot 721. At this time, the fixing arm 34 of the cable coaxial connector is locked in the card slot 721 to ensure stable matching of the two coaxial connectors. Pick up. The technical content and technical features of the present invention have been disclosed above. It should be noted that the fixing arm 34 and the card slot 41, 721 of the coaxial connector of the present invention are not limited to the above arrangement, and those skilled in the art can assist the spirit of the present invention. Equivalent modifications or changes made shall be within the scope of the following patent application.

31‧‧‧Cylinder

32‧‧‧Shading Department

34‧‧‧Fixed Arm

341‧‧‧Arc Department

4‧‧‧ boards

41‧‧‧ card slot

61‧‧‧Contacts

Claims (7)

A coaxial connector includes an insulative housing, a signal terminal fixed to the insulative housing, and a shielding housing, the shielding housing includes a cylindrical portion, and the signal terminal has a contact portion located inside the cylindrical portion, wherein the shielding housing is provided with a self a fixing arm extending outside the cylindrical portion and extending outside the cylindrical portion, the fixing arm extending toward the abutting surface of the cylindrical portion opposite to the bottom surface and protruding from the abutting surface, wherein the shielding shell comprises a bottom surface of the insulating body The shielding portion extends horizontally from the side of the cylindrical portion and then bent to form the fixed arm. The coaxial connector of claim 2, wherein the signal terminal is connected to the cable, and the shielding housing comprises a clamping portion for clamping the cable, the extending direction of the shielding portion is perpendicular to the clamping portion, and the fixing arm is The direction of extension is perpendicular to the nip. The coaxial connector of claim 2, wherein the shielding portion extends from opposite side edges of the cylindrical portion, and the fixed arms on both sides of the cylindrical portion extend obliquely relative to each other. The coaxial connector according to claim 3, wherein the fixing arm is integrally extended by the shielding shell, and the ends of the two fixing arms each extend a circular arc portion. A coaxial connector assembly comprising a cable coaxial connector and a board-end coaxial connector mated thereto, the board-end coaxial connector being mountable on a circuit board, wherein the cable coaxial connector comprises an insulating body and a shielding shell The shield housing includes a cylindrical portion and a shielding portion on a bottom side of the cylindrical portion. The outer side of the cable coaxial connector extends from the outer side of the board end coaxial connector to a fixed arm, and the fixed arm is bent from the shielding portion. Formed, when the two coaxial connectors are docked, the fixed arms are fixed to the board end coaxial connector or the circuit board. The coaxial connector assembly of claim 5, wherein the circuit board is provided with a pair of card slots, the card slot is located at a side of the board end coaxial connector, and the fixing arm has a symmetrical structure and is buckled thereon. Inside the card slot. The coaxial connector assembly of claim 5, wherein the board end coaxial connector is provided with a pair of card slots adjacent to the circuit board, and the fixing arm has a symmetrical structure and is buckled in the card slot.