JP2011198592A - Receptacle connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receptacle connector constructed to level connection portions of a center conductor and an outside conductor with a housing during mounting on a substrate.SOLUTION: The receptacle connector 10 includes the center conductor 12, an insulator 14, the outside conductor 16, and the housing 18. On the outer periphery of the outside conductor 16, two protruded pieces 22 are provided which are protruded to be parallel to the substrate. The housing 18 has insertion grooves 28 at positions corresponding to the protruded pieces 22, ranging over an insertion hole and being parallel to the substrate, and protruded portions 30 on the substrate mounting surface side to keep the housing 18 parallel to the substrate. In the state that there is no clearance between each protruded piece 22 and each insertion groove 28, the protruded pieces 22 are inserted into the insertion grooves 28, respectively, to level the connection portion 123 of the center conductor 12 and the connection portion 163 of the outside conductor 16 with the protruded portions 30 of the housing 18.

Description

  The present invention relates to a receptacle connector used in an electric device or an electronic device such as an ETC onboard device, a DSRC onboard device, or a PND, and particularly has a simple structure and a connection portion between a central conductor and an external conductor when mounted on a board. The present invention relates to a structure capable of providing a level with a housing.

In general, a receptacle connector has a contact portion in contact with the plug connector, a center conductor having a surface mounting connection portion mounted on the substrate, an insulator holding the center conductor, and covering the insulator and contacting the plug connector. An external conductor having a contact portion to be mounted and a connection portion for surface mounting to be mounted on the substrate, and a housing having a fitting opening for receiving the plug connector and an insertion hole for receiving the external conductor covering the external conductor. .
Patent Document 1 (Japanese Patent Laid-Open No. 11-339870) is listed below as a dip type document to be mounted on a substrate.
According to the summary of Japanese Patent Application Laid-Open No. 11-339870, an object of the present invention is to provide a board shield connector that can be easily positioned when assembled to a board. The board shield connector 1 includes a connector housing 2, an outer conductor 3, The dielectric 4 and the inner conductor 5 are provided. The dielectric 4 is formed of an insulating material, and is disposed between the outer conductor 3 and the inner conductor 5 so that both the conductors 3 and 5 are insulated. The outer conductor 3 is provided with a protruding piece 11 projecting left and right, while the connector housing 2 is provided with a guide groove 10 for receiving the protruding piece 11 so that the outer conductor 3 is connected to the connector housing 2. A board shield connector having a structure in which the protruding piece 11 bites into the wall portion forming the guide groove 10 and is pressed into the wall when it is pushed in from the mounting opening 7B is disclosed. There.

  Patent Document 1 performs alignment of the through hole of the substrate and the connection portion of the central conductor and the external conductor, and does not level out the height direction of the connection portion of the central conductor and the external conductor and the housing. And, in the surface mount type receptacle connector to be mounted on the board, it is difficult to level the height direction between the connection portion of the center conductor and the outer conductor and the housing, and even if it can be done, it becomes a complicated structure, There was a problem that it would lead to poor connection if leveling could not be done.

  The present invention has been made in view of such conventional problems, and has a simple structure, and a receptacle connector having a structure capable of providing a level of a connection portion and a housing of a central conductor and an external conductor when mounted on a board. Is intended to provide.

  The object is to cover the insulator, the center conductor having a contact portion that contacts the plug connector, a surface mounting connection portion that is mounted on the substrate, an insulator that holds the center conductor, and the insulator. An outer conductor having a contact portion that comes into contact with the plug connector and a surface mounting connection portion that is mounted on the substrate; a housing that covers the outer conductor and has a fitting port into which the plug connector is inserted; and an insertion hole into which the outer conductor is inserted. In the receptacle connector comprising the outer conductor, the outer conductor is provided with two projecting pieces projecting so as to be parallel to the substrate, and the housing is connected to the insertion hole at a position corresponding to the projecting piece. In addition, an insertion groove parallel to the substrate is provided, and a convex portion is provided on the substrate mounting surface side so that the housing is parallel to the substrate. The insertion groove is in a state having no clearance, and the protruding piece is inserted into the insertion groove so that the level of the projecting portion of the housing and the connection portion of the central conductor and the connection portion of the outer conductor are matched. This can be achieved by using a receptacle connector.

3. The receptacle connector according to claim 2, wherein the insulator is provided with grooves on both sides in the width direction on the fitting direction side in the board mounting direction, and the outer conductor is provided with a plate-like piece at a position corresponding to the groove of the insulator. 2. The receptacle connector according to claim 1, wherein the level of the connecting portion of the central conductor and the connecting portion of the outer conductor is adjusted by engaging the groove and the plate-like piece.
The receptacle connector according to claim 3 is the receptacle connector according to claim 1 or 2, wherein the protruding piece protrudes 0.7 to 2 mm from the outer periphery of the outer conductor.
Furthermore, the receptacle connector according to claim 4, wherein a fixture having a connection part for surface mounting is arranged on the housing, and the convex portions are provided in the vicinity of the four corners of the housing in a well-balanced manner. 4. The receptacle connector according to claim 1, wherein the level of the connecting portion and the connecting portion of the central conductor and the connecting portion of the outer conductor and the level of the convex portion of the housing are matched.
Furthermore, the receptacle connector according to claim 5 is provided with a convex to be pressed in the direction of the board in the insertion hole of the housing or in the outer conductor, and when the protruding piece is inserted into the insertion groove, the outer conductor becomes a board by the convex. The level of the connection part of the said fixture, the connection part of the said center conductor, the connection part of the said external conductor, and the convex part of the said housing is matched by pressing in the direction. 4. The receptacle connector according to 4.

As is apparent from the above description, the receptacle connector of the present invention provides the following excellent effects.
(1) As described in claim 1, a center conductor having a contact portion that comes into contact with the plug connector, a surface mounting connection portion that is mounted on the substrate, an insulator that holds the center conductor, and covers and plugs the insulator An outer conductor having a contact portion that contacts the connector and a surface mounting connection portion that is mounted on the substrate, a housing that covers the outer conductor and that has a fitting port into which the plug connector is inserted and an insertion hole into which the outer conductor is inserted. In the receptacle connector provided, two projecting pieces projecting in parallel with the substrate are provided on the outer periphery of the outer conductor, and the housing is connected to the insertion hole at a position corresponding to the projecting piece. In addition, an insertion groove parallel to the substrate is provided, and a convex portion is provided on the substrate mounting surface side so that the housing is parallel to the substrate. And the level of the projecting portion of the housing is matched with the connecting portion of the central conductor and the connecting portion of the outer conductor by inserting the protruding piece into the insertion groove. Since the connector is a simple connector, the level of the connection portion of the central conductor and the external conductor and the housing can be obtained with a simple structure.
(2) The receptacle connector according to claim 2, wherein the insulator is provided with grooves on both sides in the width direction on the mating direction side in the board mounting direction, and the outer conductor has a plate-like shape at a position corresponding to the groove of the insulator. 2. The receptacle connector according to claim 1, wherein a level is adjusted between the connecting portion of the central conductor and the connecting portion of the outer conductor by providing a piece and engaging the groove and the plate-like piece. Therefore, the level of the connection portion of the central conductor and the external conductor and the housing can be more reliably obtained when mounting the board with a simple structure.
(3) The receptacle connector according to claim 3 is characterized in that the receptacle connector according to claim 3 causes the protruding piece to protrude 0.7 to 2 mm from the outer periphery of the outer conductor. Since this receptacle connector is used, the level of the connection portion of the central conductor and the external conductor and the housing at the time of mounting on the board can be more reliably achieved with a simple structure.
(4) The receptacle connector according to claim 4, wherein a fixture having a connection part for surface mounting is arranged on the housing, and the convex portions are provided in the vicinity of the four corners of the housing in a well-balanced manner. 4. The receptacle connector according to claim 1, wherein the level of the connecting portion of the housing and the connecting portion of the central conductor and the connecting portion of the outer conductor and the level of the convex portion of the housing are the same. With a simple structure, the level of the connection portion of the central conductor and the external conductor and the housing can be obtained when the board is mounted.
(4) The receptacle connector according to claim 5, wherein a protrusion that presses in the direction of the board is provided in the insertion hole of the housing or in the outer conductor, and when the protruding piece is inserted into the insertion groove, the outer conductor becomes a board by the protrusion The level of the connection part of the said fixture, the connection part of the said center conductor, the connection part of the said external conductor, and the convex part of the said housing is matched by pressing in the direction. Since the receptacle connector described in 4 is used, the level of the connecting portion of the central conductor and the external conductor and the housing can be obtained with a simple structure when mounted on the board.

(A) It is the perspective view of the plug connector seen from the board | substrate mounting direction of a receptacle, and the receptacle connector of this invention in the state before a fitting. (B) It is the perspective view of the plug connector seen from the plug connector side at the board | substrate mounting side of a receptacle, and the receptacle connector of this invention in the state before a fitting. (A) It is the perspective view which looked at the receptacle connector of this invention from the fitting port upper direction. (B) It is the perspective view which looked at the receptacle connector of this invention from the downward direction on the opposite side to a fitting port. (C) It is the perspective view which looked at the receptacle connector of this invention from the back side on the opposite side to a fitting port. (D) It is sectional drawing which cut the receptacle connector of this invention in the center of the center conductor. 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. (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. (A) It is the perspective view which looked at the housing from the fitting direction upper direction. (B) It is the perspective view which looked at the housing from the opposite side lower side of the fitting direction. (C) It is sectional drawing sectioned on the center of the fitting port. It is a perspective view of a fixing tool. (A) It is the perspective view which looked at the plug connector from the fitting port upper part. (B) It is the perspective view which looked at the plug connector from the downward direction on the opposite side to a fitting port. (C) It is the perspective view which looked at the plug connector from the back side on the opposite side to a fitting port. (D) It is sectional drawing which cut the plug connector in the center of the center contact. It is a perspective view of a center contact. (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 opposite side lower side of the fitting direction. (C) It is sectional drawing cut in the insertion hole part. (A) It is the perspective view which looked at the external contact from the fitting direction upper direction. (B) It is the perspective view which looked at the external contact from the opposite side lower side of the fitting direction. (C) It is sectional drawing cut in the center part. (A) It is the perspective view which looked at the block from the fitting direction upper direction. (B) It is the perspective view which looked at the block from the other side lower side of the fitting direction. (C) It is sectional drawing sectioned on the center of the fitting part. It is a perspective view of a sleeve.

A feature of the present invention is that a center conductor 12 having a contact portion 121 that contacts the plug connector 50 and a surface mounting connection portion 123 that is mounted on a substrate, an insulator 14 that holds the center conductor 12, and the insulator 14 are covered. In addition, the outer conductor 16 having a contact portion 161 that contacts the plug connector 50 and a surface mounting connection portion 163 mounted on the substrate, the fitting port 26 that covers the outer conductor 16 and receives the plug connector 50, and the outer conductor 16. In the receptacle connector 10 provided with a housing 18 having an insertion hole 181 into which is inserted, two projecting pieces 22 projecting so as to be parallel to the substrate are provided on the outer periphery of the outer conductor 16. At a position corresponding to the protruding piece 22, an insertion groove 28 that is continuous with the insertion hole 181 and parallel to the substrate is provided. In addition, a protrusion 30 is provided on the substrate mounting surface side so that the housing 18 is parallel to the substrate, the clearance between the protruding piece 22 and the insertion groove 28 is eliminated, and the protruding piece 22 is inserted into the insertion groove 28. The receptacle connector 10 is characterized in that the level of the connecting portion 123 of the central conductor 12 and the connecting portion 163 of the outer conductor 16 and the level of the convex portion 30 of the housing 18 are made to coincide with each other.
That is, the protruding piece 22 of the outer conductor 16 is inserted in the insertion groove 28 of the housing 18 with no clearance, so that the connecting portion 123 of the center conductor 12 and the connecting portion 163 of the outer conductor 16 and the housing Leveling with the bottom surface (convex portion 30) of 18 is performed.

  An embodiment of the receptacle connector 10 of the present invention will be described with reference to FIGS. 1A is a perspective view of the plug connector and the receptacle connector according to the present invention as seen from the board mounting direction of the receptacle in a state before mating, and FIG. 1B is a perspective view of the receptacle in the state before mating. FIG. 3 is a perspective view of the plug connector and the receptacle connector of the present invention as seen from the plug connector side. 2A is a perspective view of the receptacle connector of the present invention as viewed from above the fitting port, and FIG. 2B is a perspective view of the receptacle connector of the present invention as viewed from the lower side opposite to the fitting port. () Is a perspective view of the receptacle connector of the present invention as viewed from the back side opposite to the fitting port, and (D) is a cross-sectional view of the receptacle connector of the present invention taken along the center of the center conductor. FIG. 3 is a perspective view of the center conductor. 4A is a perspective view of the insulator as viewed from above the fitting direction, FIG. 4B is a perspective view of the insulator as viewed from the lower side opposite to the fitting direction, and FIG. 4C is a sectional view at the insertion hole portion. FIG. FIG. 5A is a perspective view of the outer conductor as viewed from above in the fitting direction, FIG. 5B is a perspective view of the outer conductor as viewed from the lower side opposite to the fitting direction, and FIG. FIG. 6A is a perspective view of the housing as seen from above in the fitting direction, FIG. 6B is a perspective view of the housing as seen from below on the opposite side of the fitting direction, and FIG. 6C is the center of the fitting opening. It is sectional drawing which carried out the cross section. FIG. 7 is a perspective view of the fixture.

  The receptacle connector 10 of the present invention includes at least a center conductor 12, an insulator 14, an outer conductor 16, and a housing 18. The present embodiment further includes a fixture 20.

  The components of the receptacle connector 10 of the present invention will be described with reference to 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 central conductor 12 is required to be springy or conductive, and examples thereof include brass, beryllium copper, and phosphor bronze. In this embodiment, the central conductor 12 is held in the insertion hole 143 of the insulator 14 by press fitting.

  The center conductor 12 has a substantially crank shape, has a contact portion 121 that contacts the center contact 52 of the plug connector 50 on one side, and a connection portion 123 that is mounted on a substrate on the other side, Between the contact part 121 and the connection part 123, a fixing part 122 for holding the insulator 14 is provided.

  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.

  The contact portion 121 has a cylindrical shape so that it can easily come into contact with the center contact 52 of the plug connector 50, and the connection portion 123 is a surface mount type (SMT) 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, heat resistance, workability, cost, etc. Examples thereof include polyphenylene sulfide (PPS), liquid crystal polymer (LCP), polyamide (9TPA, 66PA, 46PA), polybutylene terephthalate (PBT), and synthetic materials thereof. The insulator 14 has a main body portion 141 and a protruding portion 142, and an insertion hole 143 into which the central conductor 12 is inserted is provided so as to be connected to the main body portion 141 and the protruding portion 142. .

  The insulator 14 is substantially L-shaped, and a stepped portion 144 is formed between the main body portion 141 and the protruding portion 142, and the stepped portion 144 positions the outer conductor 16. Further, the insulator 14 is provided with a groove 146 connected to the insertion hole 143 on the opposite side of the fitting direction, and provided with protrusions 145 on both sides in the width direction of the groove 146. The groove 146 is also a part into which the central conductor 12 is inserted, and the protrusion 145 is a part for positioning and holding the central conductor 12.

  The insulator 14 is provided with grooves 34 on both sides in the width direction on the fitting direction side in the board mounting direction. The groove 34 is a portion with which a plate-like piece 32 of the outer conductor 16 described below is engaged. The shape and size of the groove 34 need only be able to engage the plate-like piece 32, and are appropriately designed in consideration of the role, strength, workability, and the like. The role of the groove 34 is to engage the plate-like piece 32 so as to adjust the level of the connecting portion 123 of the central conductor 12 and the connecting portion 163 of the external conductor 16. The connecting portion 123 and the housing 18 can be adjusted in level.

  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. In this embodiment, the outer conductor 16 is held in the insertion hole 181 of the housing 18 by press fitting.

  The outer conductor 16 has a substantially L-shaped cross section, and mainly includes a main body portion 161, a contact portion 162, a connection portion 163, and a lid 165. The contact portion 162 and the main body portion 161 are provided with mounting holes 164 into which the connected insulator 14 is inserted. A step portion is formed in the mounting hole 164 at the boundary between the contact portion 161 and the main body portion 161. The insulator 14 is inserted into the mounting hole 164, and the stepped portion 144 of the insulator 14 is positioned and brought into contact with the stepped portion. The insulator 14 is held by being pushed.

  The outer conductor 16 is provided with two protruding pieces 22 that protrude from the outer periphery of the main body portion 161 in parallel with the substrate. The protruding piece 22 is inserted into an insertion groove 28 of the housing 18 which will be described later, and the relation between the protruding piece 22 and the insertion groove 28 is set so that there is no clear lance. The level of the connecting portion 163 of the outer conductor 16 and the level of the convex portion 30 of the housing 12 can be matched. The shape and size of the protruding piece 22 are appropriately designed in consideration of the role of level matching, strength, workability, miniaturization, and the like. In the present embodiment, the protruding piece 22 protrudes from the main body portion 161 by about 0.7 to 2 mm so that leveling can be performed stably.

  A protrusion 24 that presses in the substrate direction is provided in the insertion hole 181 of the housing 18 or in the outer conductor 18, and when the protruding piece 22 is inserted into the insertion groove 28, the outer conductor 16 is pressed in the direction of the substrate by the protrusion 24. Thus, the level of the connecting portion 202 of the fixture 20 and the connecting portion 123 of the central conductor 12 and the connecting portion 163 of the outer conductor 16 and the level of the convex portion 30 of the housing 18 can be surely matched. desirable. In the present embodiment, the protrusion 24 is provided on the upper side of the main body 161 of the outer conductor 16. The shape and size of the projections 24 are appropriately designed in consideration of such role, strength, workability, and the like. Further, the protrusion 24 may have a fixing role for holding the outer conductor 16 in the housing 18.

  A plate-like piece 32 is provided in the outer conductor 16 at a position corresponding to the groove 34 of the insulator 14. The plate-like piece 32 is a portion that engages with the groove 34. The role of the plate-like piece 32 is to engage the groove 34 so that the level of the connecting portion 123 of the central conductor 12 and the connecting portion 163 of the outer conductor 16 is adjusted. The connecting portion 123 and the housing 18 can be adjusted in level. The shape and size of the plate-like piece 32 only need to be able to engage with the groove 34, and are appropriately designed in consideration of the role, strength, workability, and the like.

  Next, the housing 18 will be described. The housing 18 is an electrically insulating plastic, which is manufactured by a known technique of injection molding. The material is appropriately selected in consideration of dimensional stability, heat resistance, workability, cost, etc. Examples thereof include polyphenylene sulfide (PPS), liquid crystal polymer (LCP), polyamide (9TPA, 66PA, 46PA), polybutylene terephthalate (PBT), and synthetic materials thereof. The housing 18 is provided with a fitting port 26 into which the fitting portion 602 of the plug connector 50 which is a mating connector is inserted. The fitting port 26 is adapted to follow the size of the fitting portion 602 of the plug connector 50.

  The housing 18 is provided with an insertion hole 181 in which the outer conductor 16 is mounted, and is fixed by press-fitting, hooking (lance), welding or the like. In this embodiment, it is fixed by press fitting. Further, on both sides in the width direction, mounting holes 182 for mounting the fixing tool 20 are provided. The fixture 20 is fixed to the mounting hole 182 by press fitting.

  The housing 18 is provided with a convex portion 30 on the substrate mounting surface side so that the housing 18 is parallel to the substrate. In the present embodiment, the convex portions 30 are provided in the vicinity of four corners in consideration of balance. The shape and size of the convex portion 30 are appropriately designed in consideration of the above role, leveling, strength, workability, and the like. In the present embodiment, it protrudes from the bottom surface of the housing 18 by about 0.2 to 0.3 mm.

  The housing 18 corresponds to the protruding piece 22 of the outer conductor 16, and the connecting portion 202 of the fixture 20, the connecting portion 123 of the central conductor 12, the connecting portion 163 of the outer conductor 16, and the convexity of the housing 18. An insertion groove 28 connected to the mounting hole 182 is provided at a position where the level of the portion 30 can be raised. The size of the insertion groove 28 is such that there is almost no clearance from the protruding piece 22 in consideration of leveling. Ideally, a light press fit is desirable.

  Next, the fixture 20 will be described. The fixture 20 is made of metal and is manufactured by a known press working. As the material of the fixture 20, strength, solderability, and the like are required, and examples thereof include brass, beryllium copper, and phosphor bronze. The fixing tool 20 has a substantially L shape, and in this embodiment, the fixing tool 20 is held in the mounting hole 182 of the housing 18 by press fitting. By using the fixture 20, the holding force when mounted on the substrate is increased.

  Hereinafter, an embodiment of the plug connector 50 which is a mating connector will be described with reference to FIGS. 8A is a perspective view of the plug connector as viewed from above the fitting port, FIG. 8B is a perspective view of the plug connector as viewed from the lower side opposite to the fitting port, and FIG. It is the perspective view seen from the back side on the opposite side to a joint, (D) is sectional drawing which cut the plug connector in the center of the center contact. FIG. 9 is a perspective view of the center contact. FIG. 10A is a perspective view of the insulator as viewed from above the fitting direction, FIG. 10B is a perspective view of the insulator as viewed from the lower side opposite to the fitting direction, and FIG. FIG. FIG. 11A is a perspective view of the external contact as viewed from above the fitting direction, FIG. 11B is a perspective view of the external contact as viewed from the lower side opposite to the fitting direction, and FIG. It is sectional drawing which carried out the cross section. 12A is a perspective view of the block as viewed from above the fitting direction, FIG. 12B is a perspective view of the block as viewed from the lower side opposite to the fitting direction, and FIG. 12C is the center of the fitting portion. FIG. FIG. 13 is a perspective view of the sleeve.

  The plug connector 50 includes at least a center contact 52, an insulator 54, an external contact 56, and a block 60. The present embodiment further includes a sleeve 58.

  The components of the plug connector 50 of the present invention will be described with reference to the drawings. First, the center contact 52 will be described. The center contact 52 is made of metal and is manufactured by a known press working. The material of the center contact 52 is required to be springy or conductive, and can include brass, beryllium copper, phosphor bronze, and the like. In this embodiment, the center contact 52 is held by press-fitting into the insertion hole 543 of the insulator 54.

  The center contact 52 has a substantially cylindrical shape, has a contact portion 521 that contacts the center conductor 12 of the receptacle connector 10 on one side, and a connection portion 523 to which a cable is connected on the other side, Between the contact part 521 and the connection part 523, a fixing part 522 for holding the insulator 54 is provided. The fixing portion 522 has an arrowhead shape and is press-fitted in this embodiment.

  In the present embodiment, the fixing portion 522 is provided near the center of the contact portion 521 and the connection portion 523. The position and size of the fixing portion 522 are appropriately designed in consideration of the holding force of the center contact 52, connection stability, and the like.

  The contact portion 521 is formed in a cylindrical shape so as to be easily in contact with the center conductor 12 of the receptacle connector 10 and is divided into two pieces by slits. In the present embodiment, the connection portion 123 is crimped as shown in FIG. The type.

  Next, the insulator 54 will be described. The insulator 54 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 is used. Examples thereof include terephthalate (PBT), polyamide (9TPA, 66PA, 46PA), liquid crystal polymer (LCP), polyphenylene sulfide (PPS), polycarbonate (PC), and synthetic materials thereof. The insulator 54 has a main body portion 541 and a protruding portion 542, and an insertion hole 543 into which the center contact 52 is inserted is provided so as to be connected to the main body portion 541 and the protruding portion 542. Yes.

  The insulator 54 has a substantially cylindrical shape, and a step portion is formed between the main body portion 541 and the protruding portion 542. In addition, a groove is formed in the main body 541, and a protrusion 544 is provided on one side thereof, and a lance 564 of the external contact 56 is engaged with the protrusion 544, whereby the insulator 54 is connected to the external contact 56. Is retained.

  Next, the external contact 56 will be described. The external contact 56 is made of metal and is manufactured by a known press working. Since the material of the external contact 56 is required to be springy or conductive, examples thereof include brass, beryllium copper, and phosphor bronze. The external contact 56 has a substantially cylindrical shape, and in this embodiment, the external contact 56 is held by a hooking (lance) structure of a fixing portion 562 cut and raised outside in the mounting hole 604 of the block 60. The

  The external contact 56 is provided with a contact portion 561 cut and raised in the center axis direction on the fitting direction side. In this embodiment, three are provided in consideration of connection stability and balance. In the present embodiment, the contact portion 561 is formed by cutting and raising, but it may have any shape as long as it can contact the external conductor 16 as a counterpart, and may be a protrusion or a boss.

  The external contact 56 is provided with a lance 564 substantially near the center. The lance 564 is a portion for holding the insulator 52. The shape and size of the lance 564 may be any shape as long as the insulator 52 can be held, but is appropriately designed in consideration of holding force, strength, and workability.

  The external contact 56 is provided with a protrusion 565 from the direction of the connection portion near the center. The protrusions 565 are hooked on the stepped portion in the mounting hole 604 of the block 60 to prevent the external contact 56 from shifting in the fitting direction. The shape and size of the protrusion 565 are appropriately designed in consideration of this role, workability, strength, holding force, downsizing, and the like.

  The external contact 56 is provided with a connection portion 563 on the side opposite to the fitting direction. The connecting portion 563 is a portion to which a cable is connected, and is connected by a crimping structure in this embodiment.

  Next, the block 60 will be described. The block 60 is an electrically insulating plastic, and is manufactured by a known technique of injection molding. The material of the block 60 is appropriately selected in consideration of dimensional stability, workability, cost, etc. Generally, polybutylene terephthalate is used. (PBT), polyamide (9TPA, 66PA, 46PA), liquid crystal polymer (LCP), polyphenylene sulfide (PPS), polycarbonate (PC), and synthetic materials thereof. The block 60 is provided with a fitting portion 602 that is inserted into the fitting port 26 of the receptacle connector 10 that is a mating connector. The fitting portion 602 is adapted to follow the size of the fitting port 26 of the receptacle connector 10.

  The block 60 mainly includes a main body portion 601, a fitting portion 602 protruding from the main body portion 601, an operation portion 607, and a lock 603. The body portion 601 and the fitting portion 602 are provided with a mounting hole 604 penetrating both. The mounting hole 604 is a portion in which the external contact 56 of the plug connector 50 is mounted and the external conductor 16 of the receptacle connector 10 is inserted. Further, a groove or a recess (not shown) that can engage with the lance-shaped fixing portion 562 is provided in the mounting hole 604 at a position corresponding to the fixing portion 562 of the external contact 56. The shape or size of the groove or the recess may be any shape as long as it can be engaged with the fixing portion 562 and a sufficient holding force can be obtained. Further, a stepped portion is formed in the mounting hole 604, and the projection 565 of the external contact 56 is caught by the stepped portion (not shown) so that the external contact 56 does not move in the fitting direction. It has become.

  The block 60 is provided with a fitting portion 602 that protrudes from the main body portion 601 in the fitting direction. The fitting portion 602 is a portion that enters the fitting port 26 of the receptacle connector 10. Further, the block 60 is provided with a lock 603 having a substantially J shape and having elasticity so as to protrude from both sides in the width direction to the opposite side of the fitting direction at the tip of the fitting portion 602. ing. That is, the lock 603 has a fixed end 605 at one end of the fitting portion 602 at one end and a free end at the other end. A convex portion 608 is formed in the vicinity of the center of the lock 603, and the lock 603 also enters the fitting port 26 of the receptacle connector 10, and the convex portion is connected to a locking portion in the fitting port 26 of the receptacle connector 10. By engaging, the receptacle connector 10 and the plug connector 50 are held in a fitted state. The shape and size of the lock 603 and the convex portion 608 may be any shape as long as the receptacle connector 10 and the plug connector 50 are held in a fitted state, but the elasticity, holding force, workability, strength, etc. Design accordingly.

  The block 60 is provided with an operation portion 607 for pressing the lock 603 integrally or separately from the main body portion 601. In this embodiment, they are provided integrally. The operation portion 607 may have any shape and size as long as the lock 603 can be pressed, but is appropriately designed in consideration of downsizing, strength, workability, operability, and the like.

  The block 60 has a protrusion 62 for backing up the free end 606 when the lock 603 is displaced on the free end tip side of the lock 603 and on the opposite side of the operation unit 607. 601 is provided so as to protrude from the free end side. By restricting the displacement of the free end of the lock 603 by the protrusion 62, a click feeling can be obtained when fitting with the receptacle connector 10, and sufficient strength can be obtained. That is, to restrict the displacement of the free end 606 is to make the same displacement trajectory as the fixed end 605 in the middle of the displacement. If it is fixed at both ends as in the past, both ends must be displaced to displace the lock, and a click feeling can be obtained by applying a large force to the fixed portions at both ends. In order to displace the lock, it is only necessary to displace only one fixed end. Since the displacement is possible with a small force, the click feeling is reduced. Therefore, the present invention is a displacement trajectory similar to the fixed end 605 during the displacement. By making it, enough click feeling is given. The shape and size of the protrusion 62 are appropriately designed in consideration of the click feeling, strength, workability, holding force, and the like. The block 60 is provided with a sun portion 609 so as to cover the free end 606 of the lock 603. The sun portion 609 is for preventing the free end 606 of the lock 603 from opening. The shape and size of the sun portion 609 may be any shape as long as the opening of the free end 606 can be prevented, and is appropriately designed in consideration of the role, miniaturization, strength, workability, and the like of the connector.

  Finally, the sleeve 58 will be described. The sleeve 58 is made of metal, and is manufactured by a known press working. As the material of the sleeve 58, strength, conductivity, and the like are required, and examples thereof include brass, beryllium copper, and phosphor bronze. The sleeve 58 is a base for crimping the cable, and the sleeve 58 has a substantially cylindrical shape.

  The present invention relates to a receptacle connector 10 used in electrical equipment and electronic equipment such as ETC on-board equipment, DSRC on-board equipment, PND, and the like, and in particular, a connection portion between a central conductor and an external conductor when mounted on a board with a simple structure. It is related with the structure which can take out the level of a housing.

DESCRIPTION OF SYMBOLS 1 Electrical connector 10 Receptacle connector 12 Center conductor 121 Contact part 122 Fixing part 123 Connection part 14 Insulator 141 Main body part 142 Projection part 143 Insertion hole 144 Step part 145 Projection 146 Groove 16 External conductor 161 Main body 162 Contact part 163 Connection part 164 Mounting hole 165 Lid 18 Housing 181 Insertion hole 182 Mounting hole 20 Fixture 201 Fixing part 202 Connection part 22 Protruding piece 24 Convex 26 Fitting port 28 Insertion groove 30 Convex part 32 Plate-like piece 34 Groove 50 Plug connector 52 Center contact 521 Contact part 523 Connection Portion 54 Insulator 541 Body portion 542 Projection portion 543 Insertion hole 544 Protrusion 56 External contact 561 Contact portion 562 Fixing portion 563 Connection portion 564 Lance 565 Protrusion 58 Sleeve 581 Body 582 Projection portion 583 Insertion hole 60 Block 601 Body portion 60 Fitting portions 603 lock 604 mounting hole 605 fixed end 606 a free end 607 operating section 608 protrusion 609 San portion 62 projecting

Claims (5)

A central conductor having a contact portion that contacts the plug connector, a surface mounting connection portion that is mounted on the substrate, an insulator that holds the central conductor, and a contact portion that covers the insulator and contacts the plug connector and the substrate. In a receptacle connector comprising an outer conductor having a connection portion for surface mounting, a housing that covers the outer conductor and has a fitting port into which a plug connector is inserted and an insertion hole into which the outer conductor is inserted.
On the outer periphery of the outer conductor, two protruding pieces that protrude in parallel with the substrate are provided,
The housing is provided with an insertion groove that is connected to the insertion hole at a position corresponding to the protruding piece, and is provided with an insertion groove parallel to the substrate, and the housing is parallel to the substrate on the substrate mounting surface side. Provided,
The protruding piece and the insertion groove have no clearance, and the protruding piece is inserted into the insertion groove so that the level of the connecting portion of the central conductor and the connecting portion of the outer conductor and the convex portion of the housing are matched. A receptacle connector characterized in that The insulator is provided with grooves on both sides in the width direction on the mating direction side in the board mounting direction, and the outer conductor is provided with a plate-like piece at a position corresponding to the groove of the insulator, and the groove, the plate-like piece, The receptacle connector according to claim 1, wherein the level of the connecting portion of the center conductor and the connecting portion of the outer conductor is adjusted by engaging the connector. The receptacle connector according to claim 1, wherein the protruding piece is protruded 0.7 to 2 mm from the outer periphery of the outer conductor. A fixture having a connection part for surface mounting is arranged on the housing, and the convex portions are provided in the vicinity of the four corners of the housing in a balanced manner, and the connection part of the fixture and the connection part of the central conductor, and the 4. The receptacle connector according to claim 1, wherein the level of the connecting portion of the outer conductor and the level of the convex portion of the housing are matched. In the insertion hole of the housing or in the outer conductor, a protrusion that presses in the direction of the board is provided, and when the protruding piece is inserted into the insertion groove, the outer conductor is pressed in the direction of the board by the protrusion to connect the fixture 5. The receptacle connector according to claim 1, wherein the level of the convex portion of the housing coincides with the level of the convex portion of the housing.

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