JP2011198593A - Plug connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plug connector 50 constructed to be fitted to a receptacle connector 10 while actualizing a sufficient clicking feel and stable hold.SOLUTION: The plug connector 50 includes a center contact 52, an insulator 54, an outside contact 56, and a block 60 having a lock 603 to be locked to the receptacle connector. The lock 603 of the block 60 has one side fixed with the front end side of a fitting portion 602 and the other side formed at a free end 606. The block 60 has a protrusion 62 protruded from a body 601 to the side of the free end 606 for backing up the free end 606 when the lock 603 is displaced.

Description

  The present invention relates to a plug connector used in electrical equipment and electronic equipment such as ETC on-board equipment, DSRC on-board equipment, PND, and the like, and particularly, when the plug connector is fitted to the receptacle connector with a simple structure. The present invention relates to a structure that can provide a click feeling and stable holding.

In general, a plug connector is a contact that contacts a receptacle connector, a center contact having a connection portion to which a cable is connected, an insulator that holds the center contact, covers the insulator, and contacts the receptacle connector. A block having an external contact having a contact portion and a connection portion to which a cable is connected, a fitting portion that covers the external contact and enters a receptacle connector, a mounting hole for receiving the external contact, and a lock that engages with the receptacle connector It has.
Below, Patent Document 1 (Japanese Patent Laid-Open No. 2002-93534) is cited as a type of document that fixes both ends of the lock, and Patent Document 2 (Japanese Utility Model Publication No. 7-8967) is cited as a type of document that fixes only one end of the lock. .
According to the summary of Japanese Patent Laid-Open No. 2002-93534, the purpose is to produce a full-lock type coaxial cable connector without using a cutting process, and the receiving-side connector has a cylindrical hole formed along the axis, and is cylindrical. One of the holes is provided with a rectangular tube-shaped receiving hole for receiving the insertion tube portion of the insertion side connector, and the ceiling portion has a groove hole for receiving the flange portion of the insertion side connector and the flange portion. A locking portion that engages with the stop piece is provided, and the insertion-side connector is a rectangular block that matches the receiving hole of the receiving-side connector, and has the same diameter as that of the cylindrical hole. A hole is provided, and the upper part is provided with a flange portion and a locking protrusion that are inserted into the groove hole. A cable braid is inserted into each cylindrical hole, and is press-fitted and fixed at a predetermined position. The connector is With reduction is achieved, the length of time of the connector fitting can be shortened as compared with conventional coaxial cable connector having the structure compact storage is possible are disclosed. According to the summary of Japanese Utility Model Laid-Open No. 7-8967, a latch housing is accommodated in one side wall, a plug housing having a protruding side wall on the opposite side, and a low-profile board using a cap housing that receives the plug housing. In order to provide an electrical connector and a cap housing, the upper wall 10 of the plug housing 2 is formed with a recess 12 for receiving the latch arm 14 and a bulging portion 24 at the bottom wall 21, and the terminal receiving passage 8 is The cap housing 100 has a latch engaging portion on the lower surface 106 of the upper wall 104 and has an opening 102 for receiving the plug housing 2. An electrical connector having a structure in which a bulging portion 124 is formed in 110 and one mounting leg 118 to be attached to a substrate is provided on each side thereof is disclosed.

  Generally, there are two types of plug connector locks, one having both ends fixed as in Patent Document 1, and one having only one end fixed as in Patent Document 2. In the case where both ends are fixed (Patent Document 1), there is a high possibility that a weld line is generated in the lock when the block is molded. If this occurs, the strength of the portion is weakened, and only one end side is fixed. In the thing (patent document 2), there is a conflicting problem that the elasticity becomes weak and the click feeling at the time of fitting between the connectors becomes small.

  The present invention has been made in view of such conventional problems, and has a simple structure and a plug connector having a structure capable of obtaining a sufficient click feeling and stable holding when the plug connector is fitted to the receptacle connector. Is intended to provide.

  The object of the present invention is to provide a center contact having a contact portion that contacts a receptacle connector and a connection portion to which a cable is connected, an insulator that holds the center contact, an insulator that covers the insulator, and a receptacle. An external contact having a contact portion that contacts the connector and a connection portion to which a cable is connected, a fitting portion that covers the external contact and enters the receptacle connector, a mounting hole for receiving the external contact, and a lock that engages the receptacle connector A block having a block, wherein the lock of the block is fixed at one end at the distal end side of the fitting portion and the other side is formed as a free end, and the block is displaced when the lock is displaced. In order to back up the free end, a protrusion protruding from the main body portion toward the free end It is provided can be achieved by the plug connector according to claim.

  3. The plug connector according to claim 1, wherein a click feeling is obtained at the time of mating with the mating connector by restricting the displacement of the free end of the lock by the protrusion. .

As is clear from the above description, the plug connector of the present invention provides the following excellent effects.
(1) As described in claim 1, a center contact having a contact portion that contacts the receptacle connector and a connection portion to which the cable is connected, an insulator that holds the center contact, a cover that covers the insulator and is a receptacle connector An external contact having a contact portion that contacts the cable and a connection portion to which a cable is connected, a fitting portion that covers the external contact and enters the receptacle connector, a mounting hole for receiving the external contact, and a lock that engages the receptacle connector In the plug connector comprising the block having the block, the lock of the block is fixed at one end at the distal end side of the fitting portion and the other side is formed as a free end, and when the lock is displaced in the block In order to back up the free end, a protrusion protruding from the main body toward the free end is provided. Since the plug connector is characterized by the fact that it has a simple structure and no weld line is generated in the lock portion, there is no deterioration in the strength of the lock portion, and when the plug connector is fitted to the receptacle connector Sufficient click feeling and stable retention can be obtained.
(2) The plug connector according to claim 2, wherein a click feeling is obtained at the time of mating with the mating connector by restricting the displacement of the free end of the lock by the protrusion. Because it is a connector, it has a simple structure and no weld line is generated in the lock part, so there is no deterioration in the strength of the lock part, and a sufficient click feeling and stableness when the plug connector is fitted to the receptacle connector. Retention can be obtained.

(A) It is the perspective view of the receptacle connector and plug connector of this invention seen from the board | substrate mounting direction of a receptacle in the state before a fitting. (B) It is the perspective view of the receptacle connector and plug connector of this invention seen from the plug connector side in the board | substrate mounting side of a receptacle in the state before a fitting. (A) It is the perspective view which looked at the plug connector of this invention from the fitting port upper direction. (B) It is the perspective view which looked at the plug 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 plug connector of this invention from the back side opposite to a fitting port. (D) It is sectional drawing which cut the plug connector of this invention 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) It is the perspective view which looked at the receptacle connector from the fitting port upper direction. (B) It is the perspective view which looked at the receptacle connector from the downward direction on the opposite side to a fitting port. (C) It is the perspective view which looked at the receptacle connector from the back side on the opposite side to a fitting port. (D) It is sectional drawing which cut the receptacle connector 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.

The present invention is characterized in that, as described in claim 1, a center contact 52 having a contact portion 521 that contacts the receptacle connector 10 and a connection portion 523 to which a cable is connected, and an insulator 54 that holds the center contact 52, The external contact 56 having a contact portion 561 that covers the insulator 54 and contacts the receptacle connector 10 and a connection portion 563 to which the cable is connected, and a fitting portion 602 that covers the external contact 56 and enters the receptacle connector 10 And a plug 60 having a mounting hole 604 for receiving the external contact 56 and a block 60 having a lock 603 for engaging with the receptacle connector 50, the lock 603 of the block 60 has one end on the tip of the fitting portion 602. Fixed on one side and the other side is shaped as a free end 606 The block 60 is provided with a protrusion 62 protruding from the main body 601 toward the free end 606 in order to back up the free end 606 when the lock 603 is displaced. 50.
That is, in order to give a click feeling when mating with the receptacle connector 10, the protrusion 62 protruding from the main body 601 that backs up the free end 606 when the lock 603 is displaced is provided on the free end 606 side. Is.

  An embodiment of the plug connector 50 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 plug connector of the present invention as viewed from above the fitting port, and FIG. 2B is a perspective view of the plug connector of the present invention as viewed from the lower side opposite to the fitting port. ) Is a perspective view of the plug connector of the present invention as viewed from the back side opposite to the fitting port, and FIG. 4D is a cross-sectional view of the plug connector of the present invention taken along the center of the center contact. FIG. 3 is a perspective view of the center contact. 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 an insertion hole portion. FIG. 5A is a perspective view of the external contact as viewed from above the fitting direction, FIG. 5B is a perspective view of the external contact as viewed from the lower side opposite to the fitting direction, and FIG. 5C is a central portion. It is sectional drawing which carried out the cross section. 6A is a perspective view of the block as viewed from above the fitting direction, FIG. 6B is a perspective view of the block as viewed from the lower side opposite to the fitting direction, and FIG. 6C is the center of the fitting portion. FIG. FIG. 7 is a perspective view of the sleeve.

  The plug connector 50 of the present invention 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 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. To project to 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.

  Next, 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.

  One embodiment of the receptacle connector 10 which is a mating connector will be described with reference to FIGS. FIG. 8A is a perspective view of the receptacle connector as viewed from above the fitting port, FIG. 8B is a perspective view of the receptacle 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 receptacle connector in the center of the center conductor. FIG. 9 is a perspective view of the center conductor. 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. 11A is a perspective view of the outer conductor as viewed from above the fitting direction, FIG. 11B is a perspective view of the outer conductor as viewed from the lower side opposite to the fitting direction, and FIG. FIG. 12A is a perspective view of the housing as seen from above in the fitting direction, FIG. 12B is a perspective view of the housing as seen from below on the opposite side of the fitting direction, and FIG. 12C is the center of the fitting opening. It is sectional drawing which carried out the cross section. FIG. 13 is a perspective view of the fixture.

  The receptacle connector 10 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 contact 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.

  Finally, 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.

  The present invention relates to a plug connector 50 used in an electric device or an electronic device such as an ETC on-board device, a DSRC on-board device, or a PND, and particularly, when a plug connector is fitted to a receptacle connector with a simple structure. The present invention relates to a structure that can obtain a stable click feeling and stable holding.

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 (2)

A central contact having a contact portion that contacts the receptacle connector and a connection portion to which the cable is connected, an insulator that holds the central contact, and a contact portion that covers the insulator and contacts the receptacle connector are connected to the cable. In a plug connector comprising an external contact having a connection portion, a block having a fitting portion that covers the external contact and enters a receptacle connector, a mounting hole in which the external contact enters, and a lock that engages the receptacle connector.
The lock of the block is fixed at the front end side of the fitting portion and the other side is formed at the free end,
The plug connector is characterized in that the block is provided with a protrusion that protrudes from the main body portion toward the free end in order to back up the free end when the lock is displaced. The plug connector according to claim 1, wherein a click feeling is obtained when fitting with a mating connector by limiting the displacement of the free end of the lock by the protrusion.

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