JP5473758B2 - connector - Google Patents

Description

  The present invention relates to a connector used in electrical equipment and electronic equipment such as cars, electrical equipment, and small communication equipment, and more particularly to a structure that prevents the opening of an external conductor and increases the contact pressure of the external conductor. Is.

Generally, a connector includes at least a contact portion that contacts a mating connector, a center conductor having a connection portion that connects to a cable, an insulator that holds the center conductor, and a contact portion that covers the insulator and contacts the mating connector. And an outer conductor having a connection portion connected to the cable.
In the following, an L-type plug with a cable is disclosed in documents previously filed by the present applicant, and Patent Document 1 (Japanese Utility Model Laid-Open No. 5-87854) and Patent Document 2 (Japanese Utility Model Laid-Open No. 6-73881). Patent Document 3 (Japanese Unexamined Utility Model Publication No. 6-77183) and Patent Document 4 (Japanese Patent Laid-Open No. 9-320699) are cited as L-type plugs with cables.
According to the summary of Japanese Utility Model Publication No. 5-87854, the purpose is to provide a coaxial connector with a structure that is easy to process and shortens the processing time. Therefore, a coaxial connector having a structure capable of shortening the processing time, improving the productivity, and reducing the cost is disclosed. Patent Document 1 discloses an L-shaped plug with a cable as shown in FIG. The summary of Japanese Utility Model Laid-Open No. 6-73881 includes a receptacle 30 having a fitting recess to be attached to a printed circuit board, a columnar insertion fitting portion 21 and a cable holding portion 22 that fit into the fitting recess of the receptacle 30. The present invention relates to a low-back type small coaxial connector comprising a plug 20, wherein a locking recess 25 or a locking projection is provided on both surfaces of the cable holding portion 22 of the plug 20, and a fitting recess of the receptacle 30. An opening 36 through which the cable holding portion 22 of the plug 20 can enter is provided on the side wall 33, and locking springs 35 that can hold both side surfaces of the cable holding portion 22 of the plug are provided on both sides of the opening 36. In addition, the locking recesses 25 provided on both side surfaces of the cable holding portion 22 or the locking Low profile position form compact coaxial connector structure which locking projection 37 or the locking recess to Kiga engagement is provided is disclosed. Patent Document 2 discloses an L-shaped plug with a cable as shown in FIG. Summary of Japanese Utility Model Laid-Open No. 6-77183 relates to a receptacle connector 3 used in a narrow space of communication equipment, in which an insulator 9 fixes a center contact 6 and an outer conductor 2 fixes an insulator 9. The outer conductor 2 has a mating hole 7 with the L-shaped plug connector 1 on one end side, a slit 4 is provided from the edge of the mating hole 7, and a contact 10 to the board is provided on the other end side. ing. In the receptacle connector 3 composed of the center contact 6, the insulator 9, and the outer conductor 2, one or more notch portions 8 for escaping the cable clamp portion 12 of the L-type plug connector 1 are provided on one end side of the outer conductor 2. A receptacle connector having a structure in communication with the plug connector mating hole 7 is disclosed. Patent Document 3 discloses an L-shaped plug with a cable in FIG. According to the summary of Japanese Patent Application Laid-Open No. 9-320699, the purpose of providing a coaxial connector with a strong fitting strength is to connect a case of a laterally oriented coaxial cable 100 and surround and hold an insulator. The inner case 30 is divided into an inner case 30 and an outer case 50 that are coupled via an engagement protrusion 37 or the like. The inner case 30 has a longitudinal cylindrical external terminal portion 31 having a notch 32 at the front end portion, and an external terminal. Insulator holding portion protruding upward from the upper end portions on both sides of the portion 31, a connecting plate portion protruding rearward from the rear upper end portion of the external terminal portion 31, and an outer conductor crimping protruding upward from both end portions of the connecting plate portion The coaxial connector of the structure which forms the piece parts 44 and 44 integrally and forms the upper board part 56 which closes the upper part of an insulator holding | maintenance part in the outer side case 50 is disclosed.

In the structure of the L-type plug with cable as disclosed in Patent Documents 1 to 3, there is a possibility that the joint of the external conductor may be opened when it is damaged during insertion / extraction with the mating connector was there.
A structure that solves such problems is a structure as disclosed in Patent Document 4. That is, an engagement hook projecting outward from the joint of the outer conductor is provided, an engagement notch is provided in the upper plate portion, and the engagement hook and the engagement notch are engaged to prevent opening. It is. However, in the structure as disclosed in Patent Document 4, since the vicinity of the fitting portion of the outer conductor is covered with the upper plate portion having no elasticity, the elastic force of the fitting portion of the outer conductor is lost and stable contact is achieved. (Connection) cannot be obtained.

  The present invention has been made in view of such conventional problems, and can prevent the opening of the joint of the outer conductor with a simple structure, without losing the elasticity of the fitting portion of the outer conductor, and is stable. It is intended to provide a connector that can make contact (connection).

  This object is a connector that is detachably fitted to a mating connector, as claimed in claim 1, wherein the center conductor has a contact portion that contacts the mating connector and a connection portion that connects to the cable, A connector comprising: an insulator to be held; an outer conductor having a contact portion that covers the insulator and that contacts the mating connector; and a connection portion that is connected to the cable. At least two projecting pieces projecting in the direction are provided, and a substantially cylindrical sleeve having a locking hole and a slit portion engaging with the projecting piece at a position corresponding to the projecting piece is attached to the outer conductor, This can be achieved by adjusting the contact pressure of the outer conductor by adjusting the elastic force according to the interval between the slit portions.

The connector according to claim 2 is the connector according to claim 1, wherein the protruding piece protrudes 0.1 to 0.5 mm from the locking hole.
The connector according to claim 3, wherein the slit portion is substantially U-shaped, and the interval between the slit portions is 0.1 to 1.0 mm. is there.

As is apparent from the above description, the connector of the present invention provides the following excellent effects.
(1) A connector that is detachably fitted to a mating connector as described in claim 1, and has a center conductor having a contact portion that contacts the mating connector and a connection portion that connects to the cable, and holds the center conductor And an outer conductor having a contact portion that covers the insulator and contacts the mating connector and a connection portion that is connected to the cable, the joint portion of the outer conductor has a direction outward from each joint. Provided with at least two projecting pieces projecting to the outer conductor, and mounting a substantially cylindrical sleeve having a locking hole and a slit portion engaging with the projecting piece at a position corresponding to the projecting piece, Since the connector is characterized by adjusting the contact pressure of the outer conductor by adjusting the elastic force according to the interval between the slit portions, it has a simple structure and is Sleeve that can prevent the opening of the joint of the conductor, and can stably contact (connect) without losing the elasticity of the fitting portion of the outer conductor, and can obtain a stable high-frequency characteristic, and further has a slit portion Can be used to easily adjust the contact force, prevent a decrease in contact pressure due to multiple insertions / removals, and improve the durability of repeated insertions / removals.
(2) Since the connector according to claim 2 is the connector according to claim 1, characterized in that the protruding piece protrudes 0.1 to 0.5 mm from the locking hole. , The opening of the joint of the outer conductor can be prevented even with a force of 9.8 N or more, and the elasticity of the fitting portion of the outer conductor is not lost, and stable contact (connection) can be achieved and stable high frequency characteristics can be obtained. In addition, the contact force can be easily adjusted by using a sleeve having a slit portion, a decrease in contact pressure due to multiple insertions / removals can be prevented, and durability of repeated insertions / removals can be improved.
(3) The connector according to claim 3, wherein the slit portion is substantially U-shaped, and the interval between the slit portions is 0.1 to 1.0 mm. Therefore, it is possible to prevent the opening of the joint of the outer conductor with a simple structure, and to make a stable contact (connection) without losing the elasticity of the fitting part of the outer conductor and a stable high frequency characteristic. Furthermore, the contact force can be easily adjusted by using a sleeve having a slit portion, and a decrease in contact pressure can be prevented even when inserted or removed 500 times or more, and the durability of repeated insertion and removal can be improved.

(A) It is the perspective view which looked at the connector of this invention from the fitting port upper direction. (B) It is the perspective view which looked at the connector of this invention from the fitting port lower part. (C) It is sectional drawing which cut the connector of this invention in the center part. It is a perspective view of a center conductor. (A) It is the perspective view which looked at the insulator from the fitting direction upper direction. (B) It is the perspective view which looked at the insulator from the other side lower side of the fitting direction. (C) It is sectional drawing cut in the insertion hole part. (D) It is a perspective view of the insulator of the assembled state. (A) It is the perspective view which looked at the external conductor from the fitting direction upper direction. (B) It is the perspective view which looked at the external conductor from the other side lower side of the fitting direction. (C) It is sectional drawing cut in the attachment hole part. (D) It is a perspective view of the external conductor of the assembled state. It is a perspective view of a sleeve.

A feature of the present invention is a connector 10 that is detachably fitted to a mating connector, and has a center conductor 12 having a contact portion 121 that contacts the mating connector and a connection portion 123 that connects to a cable, and holds the center conductor 12 In the connector 10 including the insulator 14 to be connected, the outer conductor 16 having a contact portion 162 that covers the insulator 14 and contacts the mating connector, and a connection portion 163 that is connected to the cable, the joint portion 168 of the outer conductor 16 , At least two projecting pieces 24 projecting outward from the respective joints 168 are provided, and locking holes 22 and slit portions 26 that engage with the projecting pieces 24 are provided at positions corresponding to the projecting pieces 24. A substantially cylindrical sleeve 18 is attached to the outer conductor 16 and the elastic force is adjusted by the distance between the slit portions 26. A connector 10, characterized in that to adjust the contact pressure of the outer conductor 16.
That is, a protruding piece 24 is provided at a joint 168 of the outer conductor 16, and an elastic sleeve 18 having a locking hole 22 and a slit portion 26 that are engaged with the protruding piece 24 is used, and the sleeve is used as the outer conductor 16. 18 is covered.

  An embodiment of the connector 10 of the present invention will be described with reference to FIGS. 1A is a perspective view of the connector of the present invention as viewed from above the fitting port, FIG. 1B is a perspective view of the connector of the present invention as viewed from below the fitting port, and FIG. 1C is the center of the connector of the present invention. It is sectional drawing which carried out the cross section in the part. FIG. 2 is a perspective view of the central conductor. 3A is a perspective view of the insulator as viewed from above the fitting direction, FIG. 3B is a perspective view of the insulator as viewed from the lower side opposite to the fitting direction, and FIG. 3C is a sectional view at the insertion hole portion. (D) is a perspective view of the insulator in the assembled state. 4A is a perspective view of the outer conductor as viewed from above the fitting direction, FIG. 4B is a perspective view of the outer conductor as viewed from the lower side opposite to the fitting direction, and FIG. 4C is a mounting hole portion. (D) is a perspective view of the external conductor in the assembled state. FIG. 5 is a perspective view of the sleeve.

  The connector 10 of the present invention includes at least a center conductor 12, an insulator 14, an outer conductor 16, and a sleeve 18. The connector 10 of the present invention is one to which a cable 80 is connected.

  Before describing the portion of the connector 10 according to the present invention, the cable 80 will be described. The cable 80 has a center conductor 801 at the center, an insulator 802 is provided so as to cover the center conductor 801, a metal braid 803 is provided so as to cover the insulator 802, and the braid 803 An insulative skin 804 is provided so as to cover the surface. The center conductor 801 is connected to the center conductor 12 of the connector 10 of the present invention, and the braid is connected to the outer conductor 16 of the connector 10 of the present invention.

  The components of the connector 10 of the present invention will be described based on the drawings. First, the center conductor 12 will be described. The central conductor 12 is made of metal and is manufactured by a known press working. The material of the center conductor 12 is required to be springy or conductive, and examples thereof include brass, beryllium copper, and phosphor bronze. In the present embodiment, the center conductor 12 is held in the insertion hole 141 of the insulator 14 by press fitting.

  As shown in FIG. 2, the center conductor 12 has a substantially straight shape. The center conductor 12 has a contact portion 121 that contacts a contact of the mating connector on one side, and the center conductor 801 of the cable 80 is connected to the other side. And a fixing portion 122 for holding the insulator 14 between the contact portion 121 and the connecting portion 123.

  In this embodiment, the fixing portion 122 is provided in the vicinity of the center of the contact portion 121 and the connection portion 123. The position and size of the fixing portion 122 are appropriately designed in consideration of the holding force of the central conductor 12, connection stability, and the like.

  In the contact part 121, two plate-like pieces are arranged in parallel so that the contact part 121 can easily come into contact with the contact of the mating connector as shown in FIG. Further, in the present embodiment, the connecting portion 123 has such a shape that the center conductor 801 of the cable 80 can be placed so that it can be connected by soldering as shown in FIG.

  Next, the insulator 14 will be described. The insulator 14 is an electrically insulating plastic, and is manufactured by a known technique of injection molding. The material is appropriately selected in consideration of dimensional stability, workability, cost, etc. Generally, polybutylene terephthalate is used. (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), fluororesin (PTFE, PFA), and synthetic materials thereof. The insulator 14 has a main body portion having an insertion hole 141 and a lid portion 142. The central conductor 12 is held in the insertion hole 141 by press-fitting.

  The insulator 14 has a substantially straight shape as shown in FIG. When the lid 142 is soldered to the center conductor 12 and the center conductor 801 of the cable 80 is soldered, the lid 142 is bent together with the upper lid 161 of the outer conductor 16 to enhance protection and insulation of the center conductor 12. At the same time, soldering can be performed.

  Next, the outer conductor 16 will be described. The outer conductor 16 is made of metal and is manufactured by a known press working. The material of the external conductor 16 is required to be springy or conductive, and examples thereof include brass, beryllium copper, and phosphor bronze.

  The outer conductor 16 has a substantially L-shaped cross section as shown in FIG. 4D in a state after being assembled, and mainly has a main body portion and a contact portion 162 having a mounting hole 166 into which the insulator 14 is inserted. And a connection portion 163, a second connection portion 167, and an upper lid 161. The size of the mounting hole 166 only needs to be inserted into the insulator 14 and is appropriately designed in consideration of strength, workability, and the like so as to conform to the shape of the insulator 14.

  The main body portion and the second connection portion 167 are connected to the upper lid 161 and divided into two almost symmetrically. That is, the main body portion and the second connection portion 167 are configured by combining two divided portions. The main body portion has seams 168, and projecting pieces 24 projecting outward are provided at predetermined portions of the seams 168. The protruding piece 24 prevents the opening of the joint 168 of the outer conductor 16 by entering the locking hole 22 of the sleeve 18. The shape and size of the protruding piece 24 may be inserted into the locking hole 22, but is appropriately designed in consideration of the role, strength, workability, and the like. In the present embodiment, the projecting piece 24 is projected from the locking hole 22 by 0.1 to 0.5 mm so as not to open even with a force of 9.8 N or more.

  The contact portion 162 is a portion that comes into contact with the mating connector, and is appropriately designed along the mating connector. The connecting portion 163 is a portion that is connected to the braid 803 of the cable 80 and simultaneously crimps the braid 803 of the cable 80 and the outer skin 804. Therefore, the connecting portion 163 is subjected to a surface treatment such as gold plating at a portion that contacts the braid 803. The shape and size of the connection portion 163 is appropriately designed in consideration of such a role, connection stability, strength, workability, and the like.

  The second connection portion 167 is a portion that is inserted between the insulator 802 of the cable 80 and the braid 803 and crimps the connection portion 163 to thereby establish electrical connection with the braid 803. The second connection portion 167 is provided with a plurality of ring-shaped protrusions so as to be easily in contact (connected) with the braid 803. The shape and size of the second connection portion 167 may be inserted between the insulator 802 and the braid 803 so that a stable connection can be obtained. In consideration of connection stability, strength, workability, and the like. Design appropriately.

  The upper lid 161 is for protecting the central conductor connecting portion and ensuring electrical shielding. The shape and size of the upper lid 161 is appropriately designed in consideration of the above role, workability, strength, and the like. The upper lid 161 is provided with an engaging portion 164 for holding in the main body portion. The engaging portion 164 is provided with two substantially L-shaped plate pieces symmetrically about the center. The main body portion is provided with a locking portion 165 that engages with the engaging portion 164. In this embodiment, a hole is provided as the locking portion 165.

  Next, the sleeve 18 will be described. The sleeve 18 is made of metal and is manufactured by a known press working. As the material of the sleeve 18, spring property, conductivity, and the like are required, and examples thereof include brass, beryllium copper, and phosphor bronze. The sleeve 18 prevents the opening of the joint 168 of the outer conductor 16 and simultaneously adjusts the contact pressure. The sleeve 18 has a substantially cylindrical shape.

  The sleeve 18 is provided with a locking hole 22 into which the protruding piece 24 enters at a position corresponding to the protruding piece 24 of the outer conductor 16. The locking hole 22 prevents the joint 168 of the outer conductor 16 from opening when the protruding piece 24 enters. The shape and size of the locking hole 22 may be as long as the protruding piece 24 is inserted, but is appropriately designed in consideration of the role, strength, workability, and the like. In the present embodiment, the projecting piece 24 is projected from the locking hole 22 by 0.1 to 0.5 mm so as not to open even with a force of 8 N or more.

  The sleeve 18 is provided with a slit portion 26. By providing the slit portion 26 in the sleeve 18, the contact force (pressure) with the outer conductor 16 can be adjusted. The shape and size of the slit portion 26 are appropriately designed in consideration of the role, strength, workability, and the like. In the present embodiment, the contact pressure is prevented from being lowered even when inserted and removed 500 times or more by making it substantially U-shaped and setting the interval to 0.1 to 1.0 mm.

Finally, a connection method will be described.
First, pretreatment of the cable 80 is performed. (Removal of spare solder and hull etc.)
Second, the sleeve 18 is attached to the outer conductor 16.
Third, the central conductor 12 is inserted into the insulator 14.
Fourth, the insulator 14 in the third state is inserted into the outer conductor 16.
Fifth, the second connecting portion 167 of the outer conductor 16 in the fourth state is inserted between the insulator 802 and the braid 803 of the cable 80.
Sixth, the center conductor 801 of the cable 80 is soldered to the center conductor 12.
Seventh, the upper lid 161 of the outer conductor 16 and the lid portion 142 of the insulator 14 are bent simultaneously.
Finally, the connection portion 163 of the outer conductor 16 is crimped to the cable 80.

  The present invention is used for a connector used in electrical equipment and electronic equipment such as cars, electrical equipment, and small communication equipment, and particularly relates to a structure that prevents the opening of an external conductor and increases the contact pressure of the external conductor. Is.

10 connector 12 central conductor 121 contact portion 122 fixing portion 123 connection portion 14 insulator 141 insertion hole 142 lid portion 16 outer conductor 161 upper lid 162 contact portion 163 engagement portion 165 locking portion 166 mounting hole 167 second connection portion 168 Seam 18 Sleeve 181 Fitting hole 20 Fitting port 22 Locking hole 24 Protruding piece 26 Slit part 80 Cable 801 Center conductor 802 Insulator 803 Braid 804 Skin

Claims (3)

A connector that is detachably mated with a mating connector,
A center conductor having a contact portion that contacts the mating connector and a connection portion that connects to the cable, an insulator that holds the center conductor, a contact portion that covers the insulator and contacts the mating connector, and a connection portion that connects to the cable In a connector comprising an outer conductor having
Providing at least two projecting pieces projecting outward from the respective joints at the joint portions of the outer conductor,
A substantially cylindrical sleeve having a locking hole and a slit portion engaging with the protruding piece at a position corresponding to the protruding piece is attached to the outer conductor,
The connector characterized in that the contact pressure of the outer conductor is adjusted by adjusting the elastic force according to the interval between the slit portions. The connector according to claim 1, wherein the protruding piece protrudes 0.1 to 0.5 mm from the locking hole. The connector according to claim 1, wherein the slit portion is substantially U-shaped, and an interval between the slit portions is 0.1 to 1.0 mm.

Images