JP6331635B2 - Coaxial connector with switch - Google Patents

Description

  The present invention relates to a coaxial with a switch configured such that when a mating connector is fitted, a pair of contacts are brought into an electrically non-contact state, and at the same time, one contact is electrically contacted with the mating connector. Concerning connectors.

  In general, in various electronic devices or electrical devices such as smartphones and tablet computers, coaxials with switches are used as small circuit inspection switches for inspecting the state and performance of various electronic circuits such as high-frequency circuits provided in the devices. Connector is adopted. This coaxial connector with a switch is used in a state where it is mounted on a circuit board so as to divide the electronic circuit of the device body, and each of a pair of movable and fixed contacts attached to an insulating housing is provided on the device body. While the electronic circuit is connected to one side and the other side of the electronic circuit, the pair of movable and fixed contacts are kept in electrical contact with each other by their own elastic force.

  For such a coaxial connector with a switch, for example, the tip portion of a probe (inspection needle) of an inspection plug connector is inserted from the upper side as a mating connector. The tip portion of the needle) is in pressure contact with the free end portion of the movable contact from above, whereby the movable contact swings away from the fixed contact and the original electronic circuit is divided. Further, when the probe comes into contact with the movable contact, the probe becomes conductive to the electronic circuit of the device body, and an electrical signal from the electronic circuit is taken out through the probe, and the external take-out signal is used, for example, as appropriate. Inspection is to be performed.

  However, in such a conventional coaxial connector with a switch, one of the pair of contacts attached to the insulating housing is maintained in a state where it is always elastically pressed against the other contact. The reaction force when the pair of contacts are maintained in the pressure contact state is a steady load (preload) on the insulating housing. Further, in addition to such a steady load (preload), a pressing force by the mating connector is applied to the insulating housing through the contact, so that a large stress may be generated in the insulating housing, resulting in damage or the like.

JP 2003-123915 A JP 2006-49276 A

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a coaxial connector with a switch having a simple configuration and capable of satisfactorily preventing damage to an insulating housing.

In order to achieve the above object, in the present invention, the first contact is elastically displaced when the mating connector is fitted from the state where the first contact and the second contact attached to the insulating housing are in electrical contact. Thus, in the coaxial connector with switch, the first contact is configured to be in electrical contact with the mating connector at the same time that the first contact is shifted from the second contact to an electrically non-contact state. The first contact includes a fixed base fixed to the insulating housing, and an inverted turn that reverses in a curved shape from the fixed base in a state where the second contact is sandwiched from both sides in a plane orthogonal to the fitting direction of the mating connector. elastically displaceable manner extends through the section, the pair of the elastic contact or non-contact with the second contact Includes an elastic arm portion comprising a plate-like member, wherein the pair of elastic arms, in a state where said second contact and in electrical contact during non-engagement of the mating connector and the mating connector fitting of Sometimes the first contact portion that is not in electrical contact with the second contact and the mating connector are not in electrical contact with each other when the mating connector is not mated, and when the mating connector is mated with the mating connector A plate-like member constituting the elastic arm portion of the first contact extends in a direction extending from the fixed base portion. The second contact extends from a fixed base fixed to the insulating housing to a position of the mating connector. Mating It has a contact portion extending in a state of hanging direction, constituting the first contact portion of the first contact to the contact portion of the second contact has a configuration in contact with or spaced apart are employed.

According to the coaxial connector with a switch having such a configuration, the first contact portions provided on the pair of elastic arm portions constituting the first contact sandwich the second contact when the mating connector is not fitted. Since they contact each other so as to face each other, the stresses generated in both elastic arm portions act so as to cancel each other, and a steady load (preload) to the insulating housing as in the prior art hardly occurs. Further, when the mating connector is fitted , the elastic arm portion of the first contact extending in a state where the plate width direction is set up in the mating direction of the mating connector by the mating force of the mating connector is fitted. Elastic displacement is performed so as to be spread out on both sides in a plane orthogonal to the alignment direction. As a result, both contacts do not directly receive the mating force of the mating connector, and both contacts can be brought into a non-contact state with a relatively small force. Therefore, it is possible to prevent the insulation housing from being deformed or damaged due to the stress or reaction force associated with the contact between the contacts and the mating connector.

Furthermore, since the electrical contact is made so that the mating connector is sandwiched between the first contacts from both sides, even if an external impact or vibration is applied, the electrical of the first contact with respect to the second contact and the mating connector is achieved. Contact reliability is improved.
In addition, according to the coaxial connector with a switch having such a configuration, the elastic arm portion can be elastically displaced in the mating direction of the mating connector due to the elasticity of the inverted folded portion, and the elastic portion around the inverted folded portion is elastic. When the arm portion is elastically displaced in the mating direction of the mating connector, the first contact portion and the second contact of the elastic arm portion rub against each other, and the contact area is kept clean by a so-called wiping action.

  Further, in the present invention, each elastic arm portion of the first contact is formed so as to form a part of a movable beam-like member extending in a cantilever manner from a fixed base fixed to the insulating housing. The first contact portion is formed at a distal end portion in the extending direction of the elastic arm portion, and the second contact portion is formed in the extending direction of the elastic arm portion. A configuration formed between the first contact portion and the first contact portion can be employed.

  Furthermore, a fixed extension piece for holding the first contact with respect to the insulating housing is connected to the fixed base in the present invention, and a board connecting portion for a printed wiring board is provided from the fixed base. It is possible to employ a configuration that extends integrally.

Furthermore, in the present invention, the inverting folding portion, it is preferably so disposed as to overlap with the fixed base portion in the fitting direction of said mating connector.

  Moreover, it is desirable that each second contact portion of the first contact in the present invention is formed so as to be able to contact the mating connector at a plurality of locations.

  According to the coaxial connector with switch having such a configuration, electrical contact reliability between the second contact portion of the first contact and the mating connector is improved.

  In the second contact according to the present invention, a contact portion for the first contact portion of the first contact may be provided at a distal end portion of a fixed base portion fixed to the insulating housing.

As described above, the coaxial connector with a switch according to the present invention has a first contact that is electrically non-contacted from the second contact and elastically displaced so as to be in electrical contact with the mating connector when the mating connector is fitted. A pair of elastic arm portions that are elastically displaced so as to be in contact with each other or become non-contact so as to sandwich the second contact from both sides in a plane orthogonal to the mating direction of the mating connector are provided, and the pair of elastic arm portions are provided The first contact portion shifts from the electrical contact state with the second contact to the non-contact state when the mating connector is fitted, and the second contact portion provided on the pair of elastic arm portions is fitted with the mating connector. By being electrically contacted with the connector, the insulating housing is made to act so that stresses generated in the pair of elastic arms constituting the first contact cancel each other. With greatly reduced steady load (preload) against the fitting direction of the mating connector resilient arm portion of the first contact plate width direction extends in a state erected along the mating direction of the mating connector The connector can be elastically displaced in the direction perpendicular to it, preventing the mating connector from receiving the fitting force of both contacts directly, thereby preventing the possibility of deformation of the insulating housing or damage such as cracks, The electrical contact reliability between the second contact and the mating connector is improved even when an external impact or vibration is applied by making the electrical contact between the first contact and the first contact. And the elastic arm part can be elastically displaced in the fitting direction of the mating connector with the inverted folded part as the center, thereby the first contact part of the elastic arm part According to rubbing between the second contact, because the contact area with a so-called wiping effect is obtained by configured to be kept clean, with a simple configuration, it is possible to satisfactorily prevent the breakage of the insulating housing Therefore, the reliability of the coaxial connector with switch can be improved at a low cost.

It is an external appearance perspective explanatory view when the whole structure of a coaxial connector with a switch which constitutes a circuit inspection switch concerning one embodiment of the present invention is seen from the front upper part side. It is a plane explanatory view of the coaxial connector with a switch concerning one embodiment of the present invention shown in FIG. FIG. 3 is a longitudinal cross-sectional explanatory view taken along line III-III in FIG. 2 in the coaxial connector with switch according to the embodiment of the present invention shown in FIGS. 1 and 2. FIG. 4 is a cross-sectional explanatory view taken along line IV-IV in FIG. 2 in the coaxial connector with switch according to the embodiment of the present invention shown in FIGS. 1 and 2. FIG. 5 is an external perspective explanatory view when an initial state of a contact pair used in a coaxial connector with a switch according to an embodiment of the present invention shown in FIGS. 1 to 4 is viewed from the front upper side. FIG. 6 is an explanatory plan view of the contact pair in the initial state shown in FIG. 5. FIG. 6 is an explanatory side view of the contact pair in the initial state shown in FIG. 5. It is front explanatory drawing of the contact pair in the initial state shown by FIG. FIG. 6 is a rear view of the contact pair in the initial state shown in FIG. 5. FIG. 6 is an external perspective explanatory view when the initial state of the first contact constituting one of the contact pairs in the initial state shown in FIG. 5 is viewed from the front upper side. FIG. 6 is an external perspective explanatory view when an initial state of a second contact constituting the other of the contact pair shown in FIG. 5 is viewed from the front upper side. FIG. 3 is an external perspective explanatory view when a state in which a mating connector (inspection plug connector) is inserted and fitted downward from the state of FIG. 1 is viewed from the upper front side. It is an external appearance perspective explanatory view when the elastic displacement state of the contact pair used for the coaxial connector with a switch concerning one embodiment of the present invention is seen from the front upper side. FIG. 14 is an explanatory plan view of the contact pair in the elastic displacement state shown in FIG. 13. It is side surface explanatory drawing of the contact pair in the elastic displacement state shown by FIG.

  Hereinafter, an embodiment in which a coaxial connector with a switch according to the present invention is employed as a circuit inspection switch will be described in detail with reference to the drawings.

[Overall structure of circuit inspection switch]
First, the coaxial connector with switch 10 according to the first embodiment of the present invention shown in FIGS. 1 to 4 is mounted and used on a wiring board (not shown). As shown in FIG. 12, with respect to the connector 10, an inspection plug connector (mating connector) 20 as a mating connector is fitted from the upper side or pulled out toward the upper side. Yes. The inspection plug connector (mating connector) 20 is gripped by the operator's hand and arranged on the upper side of the switch-equipped coaxial connector 10 and then pushed into the lower-side switch-equipped coaxial connector 10 with an appropriate force. As a result, the connectors 10 and 20 are fitted together. Further, when the inspection plug connector (mating connector) 20 is grasped and pulled up with an appropriate force from the mounted state of both the connectors 10 and 20, the inspection plug connector (mating connector) 20 is switched. Extraction is performed by separating upward from the attached coaxial connector 10.

  The inspection plug connector (mating connector) 20 is not limited to being inserted / extracted by the operator's hand, and may be automatically inserted / extracted by a machine. Hereinafter, the insertion direction and the extraction direction of the inspection plug connector (mating connector) 20 are referred to as “downward direction” and “upward direction”, respectively.

  The coaxial connector with switch 10 constituting such a circuit inspection switch device is mounted by soldering or the like on an electronic circuit board (not shown) of an electronic device or device such as a smartphone or a tablet personal computer, for example. The electronic circuit used and arranged in the electronic device or apparatus is arranged so as to be divided or connected between the device main body side and the other part side.

[Insulating housing]
The insulating housing 11 constituting the main body of the above-described coaxial connector with switch 10 is, for example, molded using a resin material such as plastic, and is a base frame made of a plate-like member having a substantially rectangular plane. The body portion 11a and the insertion guide portion 11b disposed at the center of the upper surface of the base frame body portion 11a are integrally provided.

  The insertion guide portion 11b is formed so as to rise upward in a substantially cylindrical shape from the upper surface of the base frame portion 11a. The inner peripheral surface of the insertion guide portion 11b is formed to have a substantially mortar shape. From the annular outer peripheral edge portion formed at the upper edge portion of the insertion guide portion 11b, the mating insertion hole is formed in the center portion. An inclined guide surface 11d extending obliquely downward toward the upper surface side opening of the probe insertion hole 11c provided as is formed. The inclined guide surface 11d has a function of guiding the probe 20a provided on the above-described inspection plug connector (mating connector) 20 toward the probe insertion hole 11c, and is inserted into the inspection plug connector. Even if the probe 20a of the (mating connector) 20 is not disposed directly above the probe insertion hole 11c, the probe 20a can be used as long as the tip of the probe comes into contact with the inclined surface of the inclined guide surface 11d. The tip of the slidable portion is moved so as to slide down along the inclined guide surface 11d, and is smoothly guided toward the probe insertion hole 11c.

  The probe insertion hole 11c provided as a mating insertion hole is formed from a planar substantially circular hollow passage having an inner diameter that allows the probe 20a of the inspection plug connector (mating connector) 20 to be inserted. The above-described insertion guide portion 11b is disposed substantially concentrically around the upper surface side opening of 11c. As described above, the probe insertion hole 11c extends downward from the upper end opening of the insertion guide portion 11b along the central axis of the base frame body portion 11a, and is approximately between the front surface and the back surface of the insulating housing 11. With respect to the contact insertion passage 11e provided so as to penetrate horizontally, the contact insertion passage 11e is opened to communicate with the contact insertion passage 11e. The probe insertion hole 11c is disposed above the first contact 12 described later.

[About Contact]
On the other hand, in the contact insertion passage 11e provided in the base frame portion 11a of the insulating housing 11 described above, the first contact 12 and the second contact 13 for signal transmission are connected to the plug connector for inspection (mating connector) 20. Are inserted and attached so as to face each other in a horizontal direction substantially orthogonal to the insertion / extraction direction (vertical direction). The direction in which the first contact 12 and the second contact 13 face each other is hereinafter referred to as “contact facing direction”, and the direction toward the other party in each of the contacts 12 and 13 is “front” and vice versa. The direction is “backward”. Furthermore, a direction orthogonal to both the “contact facing direction” and the “front-rear direction” is referred to as a “left-right direction”.

  As shown in FIGS. 5 to 11, the first contact 12 and the second contact 13 constitute a so-called contact pair, and contact insertion passages from both front and rear end faces of the insulating housing 11. 11e is attached to the insulating housing 11 so that the first contact 12 that is inserted so as to face the inside of the body 11e and that is movable is in elastic contact with the second contact 13 that is fixed. It has been. As will be described later, the contact state between the first and second contacts 12 and 13 is released and separated from each other by fitting an inspection plug connector (mating connector) 20 as a mating connector. .

[About the first contact]
The first contact 12 is formed of a metal member that is bent so as to extend along the contact insertion passage 11e. From the fixed base portion 12a fixed to the insulating housing 11, the first contact 12 side The movable beam-like member 12b extends toward the front of the lens. The fixed base portion 12a is formed of a flat plate member extending substantially horizontally with respect to the printed wiring board, and is integrally formed so as to protrude substantially horizontally from both sides in the left-right direction (width direction) of the fixed base portion 12a. A pair of fixed extension pieces 12 a 1 and 12 a 1 that are connected to each other are press-fitted into fixed groove portions that are recessed so as to form a groove shape on the wall surface of the insulating housing 11. The entire first contact 12 is supported by the engaging force of the fixed extending pieces 12a1 and 12a1 with respect to the insulating housing 11.

  As described above, the fixed extending pieces 12a1 and 12a1 provided on the fixed base 12a are formed so as to extend in the front-rear direction, which is the longitudinal direction of the movable beam-like member 12b, on both sides in the left-right direction of the fixed base 12a. For this reason, the fixing force of the fixed extension pieces 12a1 and 12a1 with respect to the insertion / extraction direction (vertical direction) of the inspection plug connector (mating connector) 20 is increased. Further, the fixed base portion 12a is firmly supported in this way, so that the support force of the movable beam-like member 12b is increased and stable holding property is obtained. As described later, the leading edge of the movable beam-like member 12b is obtained. The function of the contact portion provided in the portion is favorably maintained.

  Further, a board connecting portion 12c connected to the printed wiring board integrally extends from the front end edge portion of the fixed base portion 12a described above so as to form a curved surface downward. The board connecting portion 12c is formed to be folded back so as to form a substantially arc-shaped side surface toward the rear side, and a flat plate-like portion extending substantially horizontally after the folding is formed on the printed wiring board. Soldered to a path (not shown).

  Furthermore, the movable beam-like member 12b described above forms a cantilever at the rear edge of the fixed base 12a via an inverted folded portion 12b1 that rises upward to form a curved surface. They are connected together. At this time, the inverted folded portion 12b1 is folded back so as to form a substantially arcuate side surface toward the front side, and after the inverted folded portion 12b1 is folded forward, the plate-shaped beam support portion 12b2 is further moved forward. It extends almost horizontally toward the side. The beam support portion 12b2 constitutes the base portion of the movable beam-like member 12b having a cantilever shape, and is arranged so as to extend along a horizontal plane substantially parallel to the printed wiring board. In the up-down direction, which is the fitting direction of the plug connector (mating connector) 20, the plug connector (mating connector) 20 is arranged so as to overlap with the above-described fixed base portion 12 a at an upper position.

  A pair of elastic arm portions 12b3, 12b3 extends in a cantilevered manner toward the front second contact 13 from both side portions of the beam support portion 12b2 in the left-right direction (width direction). Both elastic arm portions 12b3 and 12b3 are formed of elongated strip-like members extending substantially horizontally, and sandwich the probe insertion hole 11c in the radial direction with the plate width direction set up and down. The two sides extend in a generally symmetrical shape so as to face each other. And the front-end part of the 2nd contact 13 mentioned later is made into the structure which contacts elastically with respect to the 2nd contact 13, or is spaced apart by elastically displacing in a horizontal surface so that it may be pinched | interposed from the both sides of a horizontal direction.

  The pair of elastic arm portions 12b3 and 12b3 are formed so as to approach each other in the central region where the probe insertion hole 11c is provided after extending substantially parallel from the beam support portion 12b2 described above. Arranged so that the arms 12b3 and 12b3 are substantially parallel again from the central region where the arms 12b3 and 12b3 come close to each other and extend to the front side, and the leading end portion (free end portion) on the extending side reaches the second contact 13 Has been.

  As described above, in the central region where the pair of elastic arm portions 12b3 and 12b3 are close to each other and extend substantially in parallel, the elastic arm portions 12b3 and 12b3 pass below the outer peripheral portion of the probe insertion hole 11c. In particular, as shown in FIGS. 12 to 15, the probe 20a of the inspection plug connector (mating connector) 20 inserted through the probe insertion hole 11c is connected to a pair of elastic arm portions 12b3, 12b3. It is made into the structure inserted in the up-down direction in the part between 12b3.

  Thus, in the initial state before the probe 20a of the test plug connector (mating connector) 20 is inserted between the pair of elastic arm portions 12b3 and 12b3, the elastic arm portions 12b3 and 12b3 The distance formed between them is set to be slightly smaller than the outer diameter of the probe 20a of the inspection plug connector (mating connector) 20. By inserting the probe 20a of the inspection plug connector (mating connector) 20 between the pair of elastic arm portions 12b3 and 12b3 set at such a narrow interval, the pair of elastic arm portions 12b3 and 12b3 are inserted. An elastic displacement is performed so that a portion between 12b3 is expanded.

  Moreover, the 1st contact part 12b4 which consists of a contact part which makes | forms a protrusion is formed in the free end part which comprises the front side part of each elastic arm part 12b3, respectively. Each of the first contact portions 12b4 is in electrical contact with the second contact 13 by the elastic force of the elastic arm portion 12b3 itself in the initial state, that is, when the test plug connector (mating connector) 20 is not fitted. Maintained in a state. On the other hand, when the inspection plug connector (mating connector) 20 is fitted, as described above, the pair of elastic arm portions 12b3 and 12b3 are elastically displaced in directions away from each other. The first contact portion 12b4 provided on the elastic arm portion 12b3 is configured to move away from the second contact 13 to an electrically non-contact state.

  Further, as described above, in the central region where the pair of elastic arm portions 12b3 and 12b3 are close to each other, that is, in the region where the probe 20a of the inspection plug connector (mating connector) 20 is inserted, the inspection plug connector (mating member). A second contact portion 12b5 that contacts the probe 20a of the connector 20 is provided. Each of these second contact portions 12b5 is formed by an edge portion in the front-rear direction of a concave portion provided on the elastic arm portion 12b3 so as to form a substantially arcuate plane, and is 2 to the elastic arm portion 12b3 on one side. A total of four second contact portions 12b5 are provided for each portion.

  When the test plug connector (mating connector) 20 that is in the initial state is not fitted, the second contact portions 12b5 provided on the both elastic arm portions 12b3 and 12b3 are not in electrical contact with each other. They are separated so that On the other hand, when the test plug connector (mating connector) 20 is fitted, that is, when the probe 20a of the test plug connector (mating connector) 20 is inserted between the elastic arm portions 12b3, 12b3, The second contact portion 12b5 is maintained in an electrical contact state with the outer peripheral surface of the probe 20a by the elastic force of the elastic arm portion 12b3.

[About the second contact]
The second contact 13 is inserted into the contact insertion passage 11e from the opposite side of the first contact 12 with respect to the first contact 12 as described above, and the entire second contact 12 is fixed in an immobile state. The structure is made. More specifically, from the rear edge of the fixed base portion 13a locked to the insulating housing 11, the board connecting portion 13b connected to the printed wiring board is located on the front side via the reverse folded portion 13c. The fixed beam-like member 13d extends integrally toward the front side from the front edge of the fixed base portion 13a. The board connecting portion 13b and the fixed beam-like member 13d are configured to extend in a cantilevered manner.

  The fixed base portion 13a is formed of a plate-like member extending substantially horizontally, and is insulated at both side edges in the left-right direction of the fixed base portion 13a, that is, at both ends in the plate width direction perpendicular to the contact facing direction. Fixed extending pieces 13a1 and 13a1 that are press-fitted and fixed to the housing 11 are provided so as to extend substantially horizontally toward the outer sides of both sides. Each of the fixed extending pieces 13a1 is formed so as to protrude substantially horizontally in the front-rear direction on both outer sides of the fixed base 13a, and is recessed so as to form a groove shape on the wall surface of the insulating housing 11. A fixed state is achieved by press-fitting into the fixed groove. Then, the entire second contact 13 is held by the engaging force of the fixed extending pieces 13a1 with respect to the insulating housing 11.

  The fixed extension pieces 13a1 and 13a1 provided on the fixed base portion 13a are formed so as to extend in the front-rear direction, which is the longitudinal direction of the fixed beam member 13d, on both sides of the fixed base portion 13a as described above. The fixing force of the fixed extending pieces 13a1 and 13a1 with respect to the additional force in the vertical direction with respect to the fixed beam member 13d is increased. Thus, the fixed base portion 13a is firmly supported, so that the support force of the fixed beam-like member 13d is enhanced and stable holding property is obtained, and the distal end edge portion of the fixed beam-like member 13d is formed as described later. The function of the provided contact portion is maintained well.

  The inversion folded portion 13c of the board connecting portion 13b constitutes the base portion of the board connecting portion 13b, and is bent so as to fall downward from the rear end edge portion of the fixed base portion 13a described above. It is formed from a strip-like member that extends, and is folded back toward the front side so as to reverse the extending direction of the board connecting portion 13b. That is, the lower end side portion of the inverted folded portion 13c extends substantially horizontally toward the front side, and the board connecting portion 13b is directed forward from the front end edge of the lower side portion of the inverted folded portion 13c. The board connecting portion 13b is integrally extended in a cantilever shape, and is bonded to a conductive path formed on the printed wiring board by a solder member when the electrical connector 10 is mounted.

[About fixed beam-like members]
The fixed beam-like member 13d of the second contact 13 is configured to extend directly from the front end edge of the above-described fixed base portion 13a toward the counterpart first contact 12, and the fixed beam The entire shaped member 13d is a fixed member having a predetermined rigidity. A contact portion 13e for the first contact 12 is provided at a tip portion where the fixed beam-like member 13d extends toward the front side. The contact portions 13e are respectively formed on a pair of plate-like members formed so as to be opposed in the left-right direction at the distal end portion of the fixed beam-like member 13d. The pair of plate-like members having these contact portions 13e extend downward from both side edge portions in the left-right direction of the distal end portion of the fixed beam-like member 13d.

  An arrangement relationship in which the first contact portion 12b4 provided on the movable beam-like member 12b of the first contact 12 contacts and separates from the outer side in the left-right direction with respect to the contact portion 13e of the second contact 13. Has been made. That is, as described above, in the initial state when the test plug connector (mating connector) 20 is not fitted, the first contact portion 12b4 is moved by the elastic force of the elastic arm portion 12b3 of the first contact 12 itself. The two contacts 13 are in elastic contact with the contact portion 13e of the contact 13 from the outside and are kept in electrical contact. On the other hand, when the inspection plug connector (mating connector) 20 is fitted, the pair of elastic arm portions 12b3, 12b3 provided on the first contact 12 are elastically displaced so as to be separated from each other. Thus, the first contact portion 12b4 provided on the first contact 12 is separated from the contact portion 13e of the second contact 13 toward the outer side and is in an electrically non-contact state.

  As described above, according to the coaxial connector with switch 10 according to the present embodiment, the first contact portions 12b4 and 12b4 provided on the pair of elastic arm portions 12b3 and 12b3 constituting the first contact 12 are In the initial state when the inspection plug connector (mating connector) 20 is not fitted, the contact portion 13e of the second contact 13 is in contact with the contact portion 13e therebetween. In this case, the stresses generated in the elastic arm portions 12b3 and 12b3 act so as to cancel each other, so that a steady load (preload) on the insulating housing as in the prior art hardly occurs.

  When the test plug connector (mating connector) 20 is fitted, the contacts 12 and 13 are orthogonal to the fitting direction by the fitting force of the test plug connector (mating connector) 20. Elastic displacement is performed so as to be spread out on both sides in the plane. As a result, both the contacts 12 and 13 do not receive the fitting force of the inspection plug connector (mating connector) 20 directly, and both the contacts 12 and 13 can be brought into a non-contact state with a relatively small force. It becomes possible. Accordingly, it is possible to prevent the insulation housing 11 from being deformed or damaged due to stress or reaction force due to contact between the contacts 12 and 13 or fitting of the plug connector for inspection (mating connector) 20.

  Further, since the second contact portion 12b5 provided on the first contact 12 is electrically contacted so as to sandwich the probe 20a of the inspection plug connector (mating connector) 20, impact and vibration from the outside are added. Even in this case, the electrical contact reliability of the first contact 12 with respect to the plug connector for inspection (mating connector) 20 is improved. In particular, in the present embodiment, the plurality of second contact portions 12b5 are configured so as to be able to contact the probe 20a of the plug connector for inspection (mating connector) 20 from two locations on one side. The electrical contact reliability between the second contact portion 12b5 and the probe 20a of the inspection plug connector (mating connector) 20 is improved.

  In addition, in the present embodiment, the movable beam-like member 12b having the elastic arm portions 12b3 and 12b3 is connected to the fixed base portion 12a via the reversal folded portion 12b1 extending so as to be reversed in a curved shape. Since the folded portion 12b1 is disposed so as to overlap the fixed base portion 12a in the fitting direction (vertical direction) of the test plug connector (mating connector) 20, the elastic arm portion 12b3 is provided by the elasticity of the inverted folded portion 12b1. , 12b3 can be elastically displaced in the fitting direction of the inspection plug connector (mating connector) 20, and the elastic arm portions 12b3, 12b3 centering on the inverted folded portion 12b1 are connected to the inspection plug connector (mating connector) 20. The first contact portions of the elastic arm portions 12b3 and 12b3 are elastically displaced in the fitting direction. 2b4 to be due to rubbing engagement between the contact portion 13e of the second contact 13, a so-called wiping effect is obtained, the contact area is kept clean.

[Conductive shell]
On the other hand, a conductive shell 14 made of a thin plate-like conductive member is mounted on the upper surface of the insulating housing 11 described above so as to cover from above. The conductive shell 14 is mounted so as to cover a part of the outer peripheral surface of the insertion guide portion 11 b from the upper surface side of the insulating housing 11. The conductive shell 14 covers the upper surface side surface of the insulating housing 11. A ground terminal portion 14b that covers the insertion guide portion 11b of the insulating housing 11 from the outside is integrally provided at the central portion of the upper surface substrate 14a so as to form a substantially hollow cylindrical shape. A fixed locking groove 14c having an annular shape is recessed in the outer peripheral surface of the ground terminal portion 14b, and the inspection plug connector (mating connector) 20 is provided with respect to the fixed locking groove 14c. Engagement protrusions (not shown) of the ground contacts are fitted, whereby both are connected to the ground connection state, and the inspection plug connector 20 (mating connector) is connected to the switch-equipped coaxial connector 10 with an appropriate fitting force. It is supposed to be maintained in the state that was done.

  In addition, substrate connection portions 14d extending so as to hang downward are respectively connected to the four corners of the upper surface substrate 14a of the conductive shell 14 described above. Of the four substrate connection portions 14d, the two substrate connection portions 14d and 14d adjacent to each other in the opposing direction of the movable contact 12 and the fixed contact 13 are integrally connected at the bottom surface portion. The board connection portions 14d and 14d on the one side and the board connection portions 14d and 14d on the other side that are integrally connected sandwich the contact pair composed of the movable contact 12 and the fixed contact 13 from both sides in the left-right direction. Has been placed. Then, the lower end portion of each of the board connection portions 14d is soldered to a ground conductive path on a printed wiring board (not shown), whereby ground connection is performed and the entire coaxial connector 10 with switch is Holding is to be performed.

  As mentioned above, although the invention made by the present inventor has been specifically described based on the embodiment, the present embodiment is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, in the above-described embodiment, the inverted folded portion 12b1 is configured to extend upward from the fixed base portion 12a. However, an inverted folded portion that extends downward from the fixed base portion 12a is provided. May be.

  Further, the present invention can be similarly applied to a coaxial connector with a switch used for applications other than the circuit inspection switch as in the above-described embodiment.

  As described above, the present invention can be widely applied to a wide variety of coaxial connectors with switches used in various electronic and electrical devices.

10 Coaxial connector with switch 11 Insulating housing 11a Base frame part 11b Insertion guide part 11c Probe insertion hole (mating insertion hole)
11d Inclined guide surface 11e Contact insertion path 12 First contact 12a Fixed base 12a1 Fixed extending piece 12b Movable beam member 12b1 Inverted folded part 12b2 Beam support part 12b3 Elastic arm part 12b4 First contact part 12b5 Second contact part 12c Substrate connection Part 13 Second contact 13a Fixed base part 13a1 Fixed extending piece 13b Substrate connecting part 13c Inverted folded part 13d Fixed beam-like member 13e Contact part 14 Conductive shell 14a Upper surface board 14b Ground terminal part 14c Fixed locking groove 14d Plug connector for inspection (mating connector)
20a probe

Claims (6)

The first contact is elastically displaced when the mating connector is fitted from the state where the first contact and the second contact attached to the insulating housing are in electrical contact, so that the first contact becomes the first contact. In the coaxial connector with a switch configured so that the first contact is in electrical contact with the mating connector at the same time as the transition from the two contacts to the electrically non-contact state,
The first contact includes a fixed base fixed to the insulating housing, and a reversal that reverses in a curved shape from the fixed base with the second contact sandwiched from both sides in a plane orthogonal to the mating connector fitting direction. via the folded portion resiliently displaceably extends, and an elastic arm portion comprising a pair of plate members to be resiliently contacted with or non-contact with the second contact,
The pair of elastic arms are in electrical contact with the second contact when the mating connector is not mated, and are not in electrical contact with the second contact when the mating connector is mated. A first contact portion and a second contact portion that are in an electrically non-contact state when the mating connector is not mated and are in electrical contact with the mating connector when the mating connector is mated Are provided , and
The plate-like member constituting the elastic arm portion of the first contact extends in a state where the plate width direction orthogonal to the direction extending from the fixed base portion stands along the fitting direction of the mating connector. As well as
The second contact has a contact portion that extends from a fixed base fixed to the insulating housing so as to hang down in a fitting direction of the mating connector, and the first contact with respect to the contact portion of the second contact switch-equipped coaxial connector the first contact portion is characterized that you have a structure in contact with or spaced apart. Each elastic arm portion of the first contact is formed to form a part of a movable beam-like member extending in a cantilever manner from a fixed base fixed to the insulating housing,
The first contact portion is formed at a distal end portion in the extending direction of the elastic arm portion,
The coaxial connector with a switch according to claim 1, wherein the second contact portion is formed between the fixed base portion and the first contact portion in the extending direction of the elastic arm portion. A fixed extending piece for holding the first contact with respect to the insulating housing is connected to the fixed base, and
3. The coaxial connector with a switch according to claim 2, wherein a board connecting portion for the printed wiring board is integrally extended from the fixed base. The coaxial connector with a switch according to claim 2, wherein the inverted folded portion is disposed so as to overlap the fixed base portion in a fitting direction of the mating connector. 2. The coaxial connector with a switch according to claim 1 , wherein each second contact portion of the first contact is formed so as to be able to contact the mating connector at a plurality of locations.   2. The coaxial connector with a switch according to claim 1, wherein the second contact is provided with a contact portion with respect to the first contact portion of the first contact at a distal end portion of a fixed base portion fixed to the insulating housing. .

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