CN104126255A - Plug connector, receptacle connector, and coaxial connector configured from these connectors - Google Patents

Abstract

The present invention provides a coaxial connector and the like which can be adjusted such that the VSWR is improved and the characteristic impedance of a coaxial cable is maintained, and effectively achieves a great reduction in height. This coaxial connector (1) is characterized by being provided with a signal conductor (3), a ground conductor (5), and an insulator (7), and in that in a both-conductor-opposed region (13) in which the ground conductor (5) and the signal conductor (3) are disposed opposing each other, a distance enlargement part (15) in which the vertical distance (X) between the inner surface (5a) of the ground conductor (5) and the back surface (3a) of the signal conductor (3), which is the surface facing the inner surface (5a), becomes larger without increasing the thickness dimension (t) of the coaxial connector (1) is formed.

Description

Plug connector, socket connector and the coaxial connector being formed by these connectors

Technical field

The plug connector (plug connector) that the present invention relates to use for connecting coaxial cable, especially for the RF module (module) in the inner body of connecting electronic instrument and the plug connector of antenna.

In addition, the present invention relates to the socket connector (receptacle connector) that uses in the communication equipment such as smart mobile phone, notebook computer, electric equipment and electronic instrument.

The invention still further relates to the coaxial connector being formed by plug connector and socket connector, described coaxial connector can not cause substrate manufacturing costs to increase, and there is the structure that can stablize connection, even engagement height is the ultralow back of the body of 0.8mm left and right, also do not mismatch and mistake dress, and without unfavorable conditions such as short circuits.

Background technology

For example, the plug connector in the past using with high frequency band comprises: the conductor for signal (contactor or receptacle contact (socket contact)) with the contact portion being electrically connected with the contactor (contact) of matching connector and the connecting portion being electrically connected with the inner conductor exposing of coaxial cable, the earthy conductor (housing (shell)) being electrically connected with the external conductor of coaxial cable, form by one together with conductor with signal, and by the insulator (shell (housing) or parts (block)) of electric insulation between signal use conductor and earthy conductor, described plug connector is by soldering, pressure welding or spring contact structure, the inner conductor exposing at signal with the upper surface electrical connection coaxial cable of conductor, at earthy conductor, the inner surface relative with inner conductor arranges protuberance, the insulator that disposes signal conductor is arranging rotating lid with the opposed position of upper surface of signal conductor, earthy conductor is implemented to bending machining, thereby the protuberance that makes earthy conductor is pressed the lid of insulator, have thus by the lid of this insulator being pressed and press and the structure of inhibit signal conductor and coaxial cable.

In recent years, plug connector can use in a large number on various device, and in small-sized slim smart mobile phone, portable phone, game machine etc., to having relatively high expectations of further miniaturization, the particularly low back of the body.

But, plug connector is in the past in order to press and inhibit signal conductor and coaxial cable, adopt the structure that protuberance is set at the inner surface of earthy conductor, so, the formation of this protuberance causes the inevitable thickening of the thickness of connector self, in addition, by soldering, pressure welding or spring contact structure are connected to the inner conductor exposing of coaxial cable the upper surface of signal conductor, but, in the time of soldering, in order to prevent that scolding tin from flowing out, need to be at signal with the wall portion apart from its upper surface with specified altitude is set on conductor, in the time of pressure welding, need to surround the space of inner conductor, the in the situation that of spring contact structure, need to form the structure of clamping inner conductor, and in any situation, for the connection of inner conductor, the upper surface that all needs to arrange distance signal conductor has the parts of a certain height, in addition, the lid that is arranged at insulator needs the thickness of at least 0.1～0.15mm left and right, so, from the viewpoint of the low back of the body, can not say preferred structure.

In addition, also adopt the inner conductor exposing of coaxial cable to be arranged on the structure of the upper surface side that the lower face side at contact portion place signal conductor, that be electrically connected with the contactor of matching connector is contrary, so this structure is considered from the viewpoint of the low back of the body, also not preferred.

In addition, use in the situation of coaxial cable, also need to realize the coupling of the characteristic impedance of coaxial cable and the characteristic impedance of the matching connector side being connected by plug connector.If the coupling of unrealized characteristic impedance, produce reflected wave at the connecting portion of coaxial cable, cause voltage standing wave ratio (VSWR) to become large, particularly, if signal transmission is the high-frequency signal of the high frequency band of GHz level, the value of induction reactance becomes larger, to such an extent as to can not ignore, so existence can not keep the tendency of the characteristic impedance of coaxial cable.

For example, in patent documentation 1, record a kind of plug connector, even if this connector also keeps the characteristic impedance of coaxial cable and improves VSWR when with coaxial cable transmitting high-frequency signal.

The plug connector 101 of recording in patent documentation 1 as shown in Figure 1, comprise conductor 103 for signal, earthy conductor 105 and insulator 107, be connected under the state of coaxial cable 120, there is the axial connection opening portion 108 being connected with coupling side-connector along below vertical direction with respect to coaxial cable 120, signal has respectively with the inner conductor 122 of coaxial cable 120 and mate upper surface connecting portion 111 and the lower surface contact portion 109 that side-connector is electrically connected with conductor 103, the electrostatic capacitance adjustment region 110 forming with regulation area that can make the axial length of coaxial cable 120 change is set with the front 103a of conductor 103 at signal, and, in patent documentation 1, record following content: according to adjusted electrostatic capacitance, use the conductor 103 for signal of the area of larger setting electrostatic capacitance adjustment region 110 in advance, can improve thus VSWR, and the characteristic impedance that keeps coaxial cable 120.

In addition, generally, socket connector is installed in substrate, and coordinates as plug connector matching connector, that be connected with coaxial cable.Described socket connector comprises: have the contact site that contacts with the receptacle contact of plug connector and be installed on the center conductor of the connecting portion of substrate; There is the contact site that contacts with the housing of described plug connector and be installed on the external conductor of the connecting portion of substrate; For keeping the insulator of described center conductor and described external conductor.

As socket connector in the past, for example, can enumerate patent documentation 2 and 3.

Patent documentation 2 with provide one can taking mechanically stable and electric stable state engages with socket (receptacle) and the coaxial connector of the low back of the body as object, and the coaxial connector with following structure is disclosed: socket (socket) has spring contact portion and the connecting portion being connected with the center conductor of coaxial cable, spring contact portion has makes the flat spring of certain width bend to the shape that cross sectional shape is C word shape, in the time being pressed into the center conductor of socket, spring contact portion is to its radial outside displacement, and with the outer peripheral face crimping of center conductor, connecting portion is to the direction bending of the central shaft perpendicular to spring contact portion, the leading section of the center conductor of coaxial cable is connected with connecting portion by riveted joint.

Patent documentation 3 taking a kind of coaxial connector is provided and for coaxial connector terminal wherein as object, described coaxial connector is the stabilisation that Multi-contact is realized contact by making contact chip with contacting of terminal of coupling, and easily the contact position between terminal is positioned, and, easily processing, cheap for manufacturing cost, a kind of coaxial connector is disclosed in patent documentation 3, wherein, the terminal being connected with the center conductor of coaxial cable etc. comprises: towards multiple contact chips of the direction extension coordinating with coupling terminal; Along coordinate direction the plurality of contact chip at least one inner surface, at least with the contact site formation recess that mate termination contact, and keep the insulator of such terminal; Storage insulator the external conductor being connected with the shielding conductor of coaxial cable.

Prior art document

Patent documentation

No. 3822871 communique of patent documentation 1 patent

Patent documentation 2 Unexamined Patent 11-307158 communiques

Patent documentation 3 JP 2009-59500 communiques

Summary of the invention

The problem that invention will solve

But, the plug connector 101 of recording in patent documentation 1 is in the time adjusting characteristic impedance value, can only be adjusted to low impedance value from high characteristic impedance value, and need to be without the electrostatic capacitance adjustment region 110 arranging in signal is further set up other plug connectors in the past by the front end 103a side of conductor 103, and reach the area of a certain degree after length dimension and width dimensions are extended, there is following problem in this: the use amount that forms the metal material of signal conductor 103 increases, and result causes product cost to rise.

In addition, the plug connector 101 of recording in patent documentation 1 adopts following structure, , use the area of the electrostatic capacitance adjustment region 110 of the front end 103a side of conductor 103 by making to be arranged on signal, particularly length dimension changes, adjust, thereby can keep the characteristic impedance of coaxial cable 120, the area of this electrostatic capacitance adjustment region 110, particularly can increase the scope of length dimension, naturally be limited by the inside dimension of plug connector 101, so, can only among a small circle, adjust electrostatic capacitance, on the other hand, in order to expand the adjusting range of electrostatic capacitance, only have the overall dimension of plug connector 101 is become to large method, consider preferably the method from the viewpoint of the miniaturization of connector.

And, in the plug connector 101 of recording at patent documentation 1, the inner conductor exposing 122 of coaxial cable 120 is positioned at the upper surface 103a side of conductor 103 for the signal of plug connector 101, in other words, between signal is with conductor 103 and earthy conductor 105, and, owing to being the structure that is provided with the inner conductor handle part (not shown) of the height dimension with a certain degree at the upper surface 103a of signal conductor 103, so, in the situation that needs are realized the further ultralow back of the body, can not say preferred structure.

The object of the present invention is to provide a kind of plug connector for connecting coaxial cable, especially for the RF module in the inner body of connecting electronic instrument and the plug connector of antenna, described connector is by being grounded the rationalization in two opposed regions of conductor that configure in opposite directions with conductor with conductor and signal, can be in the case of not changing the overall dimension of connector and not increasing the use amount of the electric conducting material that forms signal conductor and earthy conductor, adjust, particularly carry out the adjustment from low characteristic impedance value to high impedance value, thereby improve VSWR, keep the characteristic impedance of coaxial cable, and can realize the low back of the body.

In addition, in recent years, the miniaturization development of communication equipment, electric equipment, electronic instrument etc., and the subminaturization of connector is also at development, the requirement of the ultralow back of the body in this development when coordinating two connectors also becomes strong.

But, there is the connector of the connector mode (comprising the mode of center conductor, insulator and external conductor) that patent documentation 2 and patent documentation 3 record, in the time realizing the low back of the body of engagement height, described in existing while cooperation, the exposed to contact situation of connecting portion of the earthy conductor (housing) of plug connector and the center conductor of described socket connector, likely causes bad connection.In addition, in the structure of patent documentation 2 and patent documentation 3, be difficult to realize the ultralow back of the body that engagement height is 0.8mm left and right.That is to say, because the distance of the connecting portion that need to guarantee the housing of described plug connector and the center conductor of described socket connector is more than certain value, so, in the substantial middle part of the external conductor of described socket connector, for it is contacted with the housing engaging of described plug connector, cause engagement height to uprise.

Other objects of the present invention are in view of above-mentioned problem in the past completes, the increase that can not cause substrate manufacturing costs is provided, can make engagement height reach 0.8mm left and right, and can without mismatch and without the unfavorable conditions such as short circuit stablize plug connector, the socket connector of connection and the coaxial connector being formed by these connectors.

The means of dealing with problems

To achieve these goals, primary structure of the present invention is as follows.

(1) a kind of plug connector, it comprises signal conductor, earthy conductor and insulator, described signal is made up of electric conducting material with conductor, and there is the contact portion being electrically connected with the contactor of matching connector and the connecting portion being electrically connected with the inner conductor exposing of coaxial cable, described earthy conductor is by electric conducting material, and be electrically connected with the external conductor of described coaxial cable, described insulator is made up of electrical insulating material, form by one together with conductor with this signal, and make electric insulation between signal conductor and earthy conductor, it is characterized in that, while observation in the cross section of the length direction that comprises described signal conductor, for the adjustment of carrying out mating with the resistance value of regulation, the opposed region of two conductors configuring in opposite directions with conductor at described earthy conductor and described signal forms apart from expansion section, described apart from expansion section in the case of not increasing the gauge of connector, make the inner surface of described earthy conductor and opposed with this inner surface, described signal becomes large by the vertical range at the back side of conductor.

(2) above-mentioned (1) described plug connector, wherein, the inner conductor exposing of described coaxial cable clamps described signal conductor, and is positioned at a side contrary with described earthy conductor.

(3) above-mentioned (2) described plug connector, wherein, described signal is positioned at the position at the length direction interval predetermined distance of signal conductor with respect to the front end of the inner conductor of the coaxial cable being connected with described connecting portion with the contact portion of conductor.

(4) above-mentioned (1), (2) or (3) described plug connector, wherein, at least one the recess at the described back side at least apart from expansion section with an inner surface that is formed at described earthy conductor and described signal conductor.

(5) above-mentioned (4) described plug connector, wherein, describedly be formed as, at described earthy conductor, multiple recesses are set apart from expansion section, described earthy conductor has the heavy wall interval parts of the direction of extending between described recess and along the length direction that traverses described signal conductor.

(6) plug connector described in any one in above-mentioned (1)～(5), it is characterized in that, described signal is configured to the writing board shape of the width dimensions of 1～5 times of the diameter of the inner conductor with described coaxial cable with the connecting portion of conductor.

(7) plug connector described in any one in above-mentioned (1)～(6), it is characterized in that, front at earthy conductor arranges through hole, and arranges for described through hole and position and can insert projection wherein on insulator.

(8) a kind of socket connector, described socket connector freely coordinates with the plug connector that is connected with coaxial cable with loading and unloading, comprising center conductor, external conductor and insulator, described center conductor has with the contact site of the signal conductor contact of described plug connector and is installed on the connecting portion of substrate, described external conductor has with the contact site of the earthy conductor contact of described plug connector and is installed on the connecting portion of substrate, described insulator is used for keeping described center conductor and described external conductor, it is characterized in that, described insulator arranges recess in the outstanding part of the connecting portion of described center conductor, the connecting portion of described center conductor is in described recess, described external conductor arranges to the holding section of the outside curve engaging with the earthy conductor of described plug connector at its front end.

(9) above-mentioned (8) described socket connector, it is characterized in that, by multiple grooves being set at described external conductor, the periphery of described external conductor is formed by multiple plate-like tile, and at the front end of described plate-like tile, at least more than one holding section to the outside curve engaging with the earthy conductor of plug connector is set.

(10) above-mentioned (9) described socket connector, it is characterized in that, by eight grooves are set at described external conductor, the periphery of described external conductor is formed by eight plate-like tile, every a plate-like tile, arrange to the holding section of the outside curve engaging with the earthy conductor of described plug connector at the front end of described plate-like tile.

(11) the described socket connector in above-mentioned (8), (9) or (10), is characterized in that, described center conductor and described external conductor are held in to described insulator by one-body molded.

(12) coaxial connector, is made up of the socket connector described in any one in the plug connector described in any one in above-mentioned (1)～(7) and above-mentioned (8)～(11).

Invention effect

According to the present invention, a kind of plug connector using for connecting coaxial cable can be provided, especially for the RF module in the inner body of connecting electronic instrument and the plug connector of antenna, it is by being grounded the rationalization in two opposed regions of conductor that configure in opposite directions with conductor with conductor and signal, thereby can be in the case of not changing the overall dimension of connector and not increasing the use amount of the electric conducting material that forms signal conductor and earthy conductor, adjust, particularly carry out the adjustment from low characteristic impedance value to high impedance value, thereby improve VSWR, keep the characteristic impedance of coaxial cable, and can realize the low back of the body.

In addition, socket connector of the present invention can obtain the effect of following excellence.

(1) socket connector of the present invention is the socket connector freely coordinating with the plug connector that is connected with coaxial cable with loading and unloading, it comprises center conductor, external conductor and insulator, described center conductor has the contact site contacting with the conductor for signal (receptacle contact) of described plug connector and the connecting portion that is installed on substrate, described external conductor has the contact site contacting with the earthy conductor (housing) of described plug connector and the connecting portion that is installed on substrate, described insulator is used for keeping described center conductor and described external conductor, described insulator arranges recess in the outstanding part of the connecting portion of described center conductor, the connecting portion of described center conductor is in described recess, described external conductor arranges to the holding section of the outside curve engaging with the earthy conductor (housing) of described plug connector at its front end, thus, can be in the case of not increasing the manufacturing cost of substrate, making engagement height is 0.8mm left and right, and without mismatching and mistake dress, and, even in the time that engagement height is the ultralow back of the body (even the distance of the earthy conductor (housing) of the connecting portion of center conductor and plug connector near time), also can without the unfavorable conditions such as short circuit stablize connection.

(2) socket connector of the present invention also arranges multiple grooves at described external conductor, thereby the periphery of described external conductor is formed by multiple plate-like tile, and at the front end of described plate-like tile, at least more than one holding section to the outside curve engaging with the earthy conductor (housing) of described plug connector is set, more preferably at described external conductor, eight grooves are set, thereby the periphery of described external conductor is formed by eight plate-like tile, and every a plate-like tile, arrange to the holding section of the outside curve engaging with the earthy conductor (housing) of described plug connector at the front end of described plate-like tile, can obtain thus elasticity, and can further stably connect.

(3) socket connector of the present invention is also held in described insulator by described center conductor and described external conductor by one-body molded, thereby can obtain reliably the effect of above-mentioned (1).

In addition, while using the coaxial connector being formed by plug connector and the socket connector of the invention described above, can in the situation that not causing substrate manufacturing costs to increase, make engagement height is 0.8mm left and right, and without mismatching and mistake dress, and, even in the time that engagement height is the ultralow back of the body (even if the distance of the earthy conductor (housing) of the connecting portion of center conductor and plug connector is close), also can without the unfavorable conditions such as short circuit stablize connection.

Brief description of the drawings

Fig. 1 is plug connector in the past under the state that represents to be connected with the coaxial cable sectional view at length direction.

Fig. 2 is of the present invention representative plug connector under the state that represents to be connected with the coaxial cable sectional view at length direction.

Fig. 3 (a) and (b) be the stereogram of the plug connector of Fig. 2, Fig. 3 (a) is the situation of observing from dorsal part, Fig. 3 (b) is the situation of observing from front side.

Fig. 4 is the exploded perspective view of the plug connector shown in Fig. 1.

Fig. 5 (a) and (b) be only to extract earthy conductor and the stereogram that represents from the plug connector of Fig. 1, Fig. 5 (a) is the situation of observing from inner side, Fig. 5 (b) is the situation of observing from outside.

Fig. 6 (a) and (b) be only to extract the stereogram that signal represents with conductor from the plug connector of Fig. 1, Fig. 6 (a) is the situation of observing from downside, Fig. 6 (b) is the situation of observing from upside.

Fig. 7 is the vertical view that forms other earthy conductors of plug connector of the present invention.

Fig. 8 is the vertical view that forms other earthy conductors of plug connector of the present invention.

Fig. 9 is the vertical view that forms other earthy conductors of plug connector of the present invention.

Figure 10 is the vertical view that forms other earthy conductors of plug connector of the present invention.

Figure 11 is the vertical view that forms other earthy conductors of plug connector of the present invention.

In Figure 12, Figure 12 (A) is from coordinating side to observe the stereogram of socket connector; Figure 12 (B) is the stereogram that connects side observation socket connector from substrate; Figure 12 (C) is from coordinating side to observe the stereogram of plug connector.

In Figure 13, Figure 13 (A) is under the state of plug connector and socket connector cooperation, the sectional view obtaining to tilt 45 degree direction cross sections; Figure 13 (B) is the sectional arrangement drawing under plug connector and socket connector mated condition.

In Figure 14, Figure 14 (A) is the stereogram of the center conductor from contact site side is observed insert molding (insert molding); Figure 14 (B) is the stereogram of the center conductor from connecting portion side is observed insert molding.

In Figure 15, Figure 15 (A) is that Figure 15 (B) is the stereogram of the external conductor from connecting portion side is observed insert molding from coordinating side to observe the stereogram of the external conductor insert molding.

In Figure 16, Figure 16 (A) be center conductor and external conductor not under the state of clipped object mold pressing from coordinating side to observe the stereogram of insulator; Figure 16 (B) is the stereogram of not observing insulator at center conductor and external conductor under the state of clipped object mold pressing from connecting side.

In Figure 17, Figure 17 (A) is from coordinating side to observe the stereogram of the other external conductor of the present invention insert molding; Figure 17 (B) is from coordinating side to observe the stereogram of the socket connector of the external conductor that has used this figure (A); Figure 17 (C) is the stereogram of observing the socket connector of the external conductor that has used this figure (A) from substrate connection side.

In Figure 18, Figure 18 (A) is the stereogram of observing the conductor for signal (receptacle contact) of plug connector from contact site side; Figure 18 (B) is the stereogram of observing described signal conductor from connecting portion side.

In Figure 19, Figure 19 (A) is to coordinate side as the stereogram of observing the earthy conductor (housing) of the plug connector after riveted joint under the state of nearside; Figure 19 (B) is to coordinate side as the stereogram of observing the described earthy conductor after riveted joint under inboard state.

In Figure 20, Figure 20 (A) is from coordinating side to observe the stereogram of the insulator (parts) of plug connector; Figure 20 (B) is the stereogram of observing the insulator of plug connector from connecting side.

In Figure 21, Figure 21 (A) is at the external conductor of the center conductor of socket connector and Figure 17 (A) not under the state of clipped object mold pressing, observe the stereogram of other insulator of the present invention from coordinating side, Figure 21 (B) not under the state of clipped object mold pressing, observes the stereogram of described insulator at the external conductor of described center conductor and Figure 17 (A) from connecting side.

Embodiment

Next,, on one side with reference to accompanying drawing, the execution mode of plug connector of the present invention is carried out to following explanation on one side.Fig. 2 represents representative plug connector of the present invention, Fig. 3 (a) and (b) be the stereogram of the plug connector shown in Fig. 2, Fig. 3 (a) is the situation of observing from dorsal part, Fig. 3 (b) is the situation of observing from front side, Fig. 4 is the exploded perspective view of the plug connector shown in Fig. 2, Fig. 5 (a) and (b) be only to extract earthy conductor and the stereogram that represents from the plug connector shown in Fig. 2, Fig. 5 (a) is the situation of observing from inner side, Fig. 5 (b) is the situation of observing from outside, Fig. 6 (a) and (b) be only to extract the stereogram that signal represents with conductor from the plug connector of Fig. 2, Fig. 6 (a) is the situation of observing from downside, (b) be the situation of observing from upside.

Even if the plug connector shown in Fig. 2～4 1 is the plug connector that also can use at the high-frequency range up to for example 6GHz, and mainly formed by conductor 3, earthy conductor 5 and insulator 7 for signal.

Signal is for example made up of electric conducting materials such as the alloy materials of the metal of iron, aluminium, copper and so on, beryllium copper, titanium copper and so on conductor 3, in order further to improve conductivity, can on this metallic plate, apply the surface treatment capsules such as gold-plated or silver-plated.

Signal has the contact portion 9 that inserts and be electrically connected for the contactor (not shown) of matching connector (not shown) and the connecting portion 11 being electrically connected with the inner conductor exposing 22 of coaxial cable 20 with conductor 3.

Contact portion 9 forms as a pair of claw-like 9a of portion, 9b, and the described claw-like 9a of portion, 9b use the planar section of conductor 3 towards lower surface 3b side and along direction bending close to each other from signal.

Connecting portion 11 forms with planar section with in conductor 3 at signal, it is the part of conductor 3 for the signal of the inner conductor 22 by the connecting coaxial cables such as soldering 20, without as patent documentation 1, in order to control the inner conductor of coaxial cable, there is the wall part of a certain height dimension with conductor setting at signal.

Earthy conductor 5 is for example made up of electric conducting materials such as the alloy materials of the metal of iron, aluminium, copper and so on, beallon, CTB alloy and so on, at Fig. 5 (a) and be expressed as the compressing product of single metallic plate (b), be in order to be electrically connected and to be set up with the external conductor 24 of coaxial cable 20.

Insulator 7 is made up of the electrical insulating material of synthetic resin materials such as polybutylene terephthalate (PBT) (PBT) class, polyamide (PA) class, polyphenylene sulfide (PPS) class, liquid crystal polymer (LCP) class and so on, and one-body molded together with using conductor 3 with signal, be to be set up in order to make electric insulation between signal conductor 3 and earthy conductor 5.

And, this invention principal character is structurally, be grounded the rationalization in two opposed regions 13 of conductor that configure in opposite directions with conductor 5 and signal conductor 3, more specifically, in the time that the cross section of length direction L that comprises signal conductor 3 is observed, in order to be increased to the adjustment of resistance value of regulation, the opposed region 13 of two conductors configuring in opposite directions with conductor 3 at earthy conductor 5 and signal, in the case of the gauge t that does not increase plug connector 1, the inner surface 5a of earthy conductor 5 is set and becomes large distance expansion section 15 with the vertical range X of the upper surface 3a of the opposed signal of this inner surface 5a conductor 3, by adopting this structure, can be in the case of not changing the overall dimension of connector and not increasing the use amount of the electric conducting material that forms signal conductor and earthy conductor, adjust, thereby improve VSWR, keep the characteristic impedance of coaxial cable 20, and can realize the low back of the body.

In addition, realize the lower back of the body in the situation that at needs, connector of the present invention preferably adopt make the inner conductor the exposing 22 clamping signals conductor 3 of coaxial cable 20 and be positioned at a side contrary with earthy conductor 5,, the structure of the lower surface 3b side of signal use conductor 3.

In such cases, signal is preferably placed at the position of the distance d specifying along the length direction L interval of signal conductor 3 with respect to the front end 22a of the inner conductor 22 of the coaxial cable 20 being connected with connecting portion 11 with the contact portion 9 of conductor 3.

As shown in Figure 2, in the cross section of length direction L that comprises signal conductor 3, observe, the region that the inner surface 5a that the opposed region 13 of two conductors that earthy conductor 5 and signal configure in opposite directions with conductor 3 is earthy conductors 5 and the upper surface 3a of signal conductor 3 configure in opposite directions, particularly, represent that signal conductor 3 extends the length areas existing at length direction.

That the vertical range X that the upper surface 3a of the inner surface 5a of earthy conductor 5 and, signal conductor 3 opposed with this inner surface 5a is set the gauge t in the case of not increasing plug connector 1 becomes large distance expansion section 15 apart from expansion section 15, for example, preferably form at least one recess 17 at the inner surface 5a of earthy conductor 5 and signal with at least one of the upper surface 3a of conductor 3, Fig. 1 illustrates by two examples that recess 17 forms of inner surface 5a that are formed at earthy conductor 5.

Represent the part that the vertical range X of signal conductor 3 and earthy conductor 5 is expanded apart from expansion section 15, insulator 7 may reside in therebetween, can be also the space that does not have insulator.To be the situation of insulator apart from expansion section and be space apart from expansion section situation compares, the situation of making space itself just has impedance and adjusts effect, and can shortening vertical distance X, and be also favourable running through aspect characteristic, reflection characteristic.

Recess 17 can be according to the adjustment amount of the value of characteristic impedance, suitably designs and changes allocation position, configuration number and configure shape etc.

In the case of recess 17 being arranged at the inner surface 5a of earthy conductor 5, the allocation position of recess 17 is arranged on the inner surface portion with the signal upper surface 3a of conductor 3 earthy conductor 5 in opposite directions, this compared with the situation being arranged on other inner surface portion beyond the inner surface portion of the signal upper surface 3a of conductor 3 earthy conductor 5 in opposite directions, can increase characteristic impedance value adjustment amount aspect preferred.

The configuration number of recess 17 is not particularly limited, as shown in Figure 8, can a recess 17 be set at earthy conductor 5, in the situation that earthy conductor 5 arranges recess 17, from guarantee plug connector 1 intensity viewpoint consider, preferably make to there are multiple recesses apart from expansion section 15, for example in Fig. 2 and Fig. 9, separately form two recesses 17, 17, in Fig. 7 and Figure 10, separately form three recesses 17, 17, 17, and, in Figure 11, separately form four recesses 17, 17, 17, 17, earthy conductor 5 has to be positioned at distinguishes adjacent recess 17, between 17 and traverse the length direction L of signal conductor 3 and the heavy wall interval parts 19 of extending.

In order to realize the low back of the body, preferably do not form protuberance with the outer surface 5b at earthy conductor 5 but keep the mode of flat state to form the configuration shape of recess 15.

The depth dimensions of recess 17 is preferably 0.2～0.6 times of gauge of earthy conductor 5.During with 0.2 times of the gauge of conductor 5, there is the little tendency of adjustment region of impedance in the depth dimensions insufficient grounding of recess 17, in the time exceeding 0.6 times, cannot fully obtain the intensity of connector, in addition, exists punch process aspect to make the tendency that becomes difficult.

In addition, with the width regions of the inner surface portion of the signal upper surface 3a of conductor 3 earthy conductor 5 in opposite directions, recess is being set if only considered, the adjustment amount of the value of characteristic impedance and have the proportionate relationship of essence at signal with the total measurement (volume) in the insulator between conductor 3 and earthy conductor 5 and/or space, so for example think, if the aggregate value of the internal volume of all recesses of configuration is identical, the adjustment amount of the value of characteristic impedance is also identical, and irrelevant with configuration number and the depth dimensions of recess.

As an example, when the degree of depth of the recess of the earthy conductor that is provided with three recesses shown in Fig. 7 becomes 0mm (without recess), 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, be shown in table 1 for the analog result of the characteristic impedance value (Ω) of plug connector.

[table 1]

The degree of depth (mm) of recess	Characteristic impedance value (Ω)
		(without recess) 0	45.0
0.01	46.8
		0.02	47.9
0.03	48.6
		0.04	49.2
0.05	49.6

As shown in Table 1, the degree of depth that the adjustment amount of the value of characteristic impedance can be arranged at the recess of earthy conductor 5 by change is adjusted the value of characteristic impedance.It should be noted that, although table 1 do not illustrate, the degree of depth of recess is darker, the amplitude of characteristic impedance value is less, this also obtains as the knowledge of current analog result.

In addition, the present invention is by arranging apart from expansion section 15, can adjust to the large direction of change the value of characteristic impedance, but in the time the value of characteristic impedance need to being adjusted to the direction diminishing, as long as in the standard-sized scope of plug connector, can preferably adopt the structure that the characteristic impedance adjustment part with regulation area that extends to its front end 3a side is set at signal conductor 3.By adopting this structure, can carry out any adjusting during the value of characteristic impedance is tuned up and turned down.

In addition, signal preferably forms with the writing board shape of the width dimensions of 1～5 times of diameter of the inner conductor 22 with coaxial cable 20 with the connecting portion 11 of conductor 3.If this is 1 times of diameter that is less than the inner conductor 22 of coaxial cable 20 due to the width dimensions of connecting portion 11, be difficult to inner conductor 22 to be welded in reliably signal with on the connecting portion 11 of conductor 3, if described width dimensions is greater than 5 times of diameter of the inner conductor 22 of coaxial cable 20, there is the problem of impedance step-down.In addition, in the front of earthy conductor 5, through hole 23 is set, arranges for described through hole 23 and position and insertable projection 21 at insulator 7, this realize aspect the further ultralow back of the body of plug connector 1 preferred.

Next the execution mode of socket connector of the present invention is described.

Feature of the present invention is a kind of socket connector 220 that can freely coordinate with the plug connector 40 that is connected with coaxial cable with loading and unloading, and the socket connector 220 of described cooperation comprises: the center conductor 224 with the contact site 241 contacting with the conductor for signal (socket connector) 44 of described plug connector 40 and the connecting portion 243 that is installed on substrate; There is the external conductor 26 of the contact site contacting with the earthy conductor (housing) 46 of described plug connector 40 and the connecting portion 263 that is installed on substrate; For keeping the insulator 222 of described center conductor 224 and described external conductor 26, described socket connector is characterised in that, described insulator 222, in the outstanding part of the connecting portion 243 of described center conductor 224, recess 221 is set, the connecting portion 243 of described center conductor 224 is positioned at described recess 221, at described external conductor 26, the holding section 266 of its front end to the outside curve engaging with described earthy conductor 46 is set, and described plug connector 40 while making to coordinate and the ultralow back of the body of engagement height of described socket connector 220.

That is to say and form following structure: engage and contact with the fastener of the fore-end as described earthy conductor 46 464 as the holding section 266 of fore-end of described external conductor 26 by making, and make described center conductor 224 and described external conductor 26 be held in described insulator 222 by one-body molded, thereby engagement height when two connectors 220 and 40 are coordinated is 0.8mm left and right, and in the outstanding position of connecting portion 243 of the described center conductor 224 of described insulator 222, recess 221 is set, make coordinating two connectors 220 and at 40 o'clock by described recess 221, described earthy conductor 46 does not contact with described connecting portion 243.

Referring to accompanying drawing, the execution mode of socket connector of the present invention is described.Figure 12 (A) is from coordinating side to observe the stereogram of socket connector, and Figure 12 (B) is the stereogram that connects side and observe socket connector from substrate, and Figure 12 (C) is the stereogram from coordinating the plug connector that side observes.Figure 13 (A) is under the state of plug connector and socket connector cooperation, the sectional view obtaining to tilt 45 degree direction cross sections, and Figure 13 (B) is the longitudinal section under plug connector and socket connector mated condition.Figure 14 (A) is the stereogram of the center conductor from contact site side is observed insert molding, and Figure 14 (B) is the stereogram of the center conductor from connecting portion side is observed insert molding.Figure 15 (A) is that Figure 15 (B) is the stereogram of the external conductor from connecting portion side is observed insert molding from coordinating side to observe the stereogram of the external conductor insert molding.Figure 16 (A) is at center conductor and external conductor not under the state of clipped object mold pressing, observe the stereogram of insulator from coordinating side, Figure 16 (B) not under the state of clipped object mold pressing, observes the stereogram of insulator at center conductor and external conductor from connecting portion side.Figure 17 (A) is from coordinating side to observe the stereogram of the of the present invention other external conductor insert molding, Figure 17 (B) is from coordinating side to observe the stereogram of the socket connector of the external conductor that has used this figure (A), and Figure 17 (C) is the stereogram of observing the socket connector of the external conductor that has used this figure (A) from substrate connection side.Figure 18 (A) is the stereogram of observing the conductor for signal (receptacle contact) of plug connector from contact site side, and Figure 18 (B) is the stereogram of observing described signal conductor from connecting portion side.Figure 19 (A) is to coordinate side as the stereogram of observing the earthy conductor (housing) of the plug connector after riveted joint under the state of nearside, and Figure 19 (B) is to coordinate side as the stereogram of observing the described earthy conductor after riveted joint under the state of inner side.Figure 20 (A) is from coordinating side to observe the stereogram of the insulator (parts) of plug connector, and Figure 20 (B) is the stereogram of observing the insulator of plug connector from connecting side.Figure 21 (A) is at the external conductor of the center conductor of socket connector and Figure 17 (A) not under the state of clipped object mold pressing, observe the stereogram of other insulator of the present invention from coordinating side, Figure 21 (B) not under the state of clipped object mold pressing, observes the stereogram of described insulator at the external conductor of described center conductor and Figure 17 (A) from connecting side.

The socket connector 220 of the present embodiment at least comprises center conductor 224, insulator 222 and external conductor 26.On the other hand, mainly comprise conductor for signal (receptacle contact) 44, parts (insulator) 42 and earthy conductor (housing) 46 as the plug connector 40 of matching connector.

Before socket connector 220 of the present invention is described, to describing with the coaxial cable 80 of described plug connector 40 wiring.Described coaxial cable 80 by an inner wire in center, as cover this inner wire insulator insulant, as cover this insulant outer conductor braiding and form as the crust of insulator that covers this braiding.

Before socket connector 220 of the present invention is described, to describing for the substrate that described socket connector 220 is installed.Described substrate comprises hard substrate and FPC (flexible printing (flexible print) substrate).Here hard substrate is described.Described substrate comprises the welding stage (land) that the connecting portion 243 of described center conductor 224 and the connecting portion 263 of described external conductor 26 connect and the pattern that is connected to circuit from described welding stage.Because the connecting portion 243 of described center conductor 224 and the connecting portion 263 of described external conductor 26 only connect by soldering, so the surface treatment of described welding stage is without gold-plated.

First, the center conductor 224 that forms socket connector 220 is described.This center conductor 224 is metal system, and makes by the punch process as known technology.As the material of described center conductor 224, owing to requiring elasticity, conductivity etc., so can enumerate beryllium copper, phosphor bronze etc.

Described center conductor 224 at least has the contact site 241 contacting with the signal conductor 44 of plug connector 40 and the connecting portion 243 that is installed on substrate.In the present embodiment, described center conductor 224 is held in described insulator 222 by one-body molded.As the method that described center conductor 224 is held in to described insulator 222, as long as can keep, can be any means, can be pressed into, deposited or clasp joint etc.The low back of the body of connector, confining force, elasticity, intensity, processability etc., suitably design keeping method in the case of considering.

The contact site 241 of described center conductor 224 is the parts that contact with the signal conductor 44 of described plug connector 40, in order easily to contact with conductor 44 with described signal, and can stablize connection, in the present embodiment, contact site is made into general cylindrical shape.From considerations such as processing aspect, material costs, cavity is made in centre.

Described connecting portion 243 is the parts that are connected with described substrate, and in the present embodiment, this part is plate-like tile roughly, by surface, (SMT) is installed and is installed on substrate.As long as described connecting portion 243 can be installed on described substrate, it can be DIP type.The low back of the body of connector, substrate erection space, installation strength, processability etc., suitably design shape, the size of described connecting portion 243 in the case of considering.

Next external conductor 26 is described.This external conductor 26 is metal system, and makes by the punch process as known technology.As the material of described external conductor 26, owing to requiring elasticity, conductivity etc., so, can enumerate beryllium copper or phosphor bronze etc.Described external conductor 26 has main part 261 and connecting portion 263 substantially.

The connecting portion 263 of described external conductor 26 is the parts that are connected with described substrate, is plate-like tile roughly in the present embodiment, and by surface, (SMT) is installed and is installed on substrate.In the present embodiment, described connecting portion 263 be provided in the connecting portion 243 of described center conductor 224 outstanding beyond three directions be connected with described main part 261.As long as described connecting portion 263 can be installed on described substrate, it can be immersion-type.The low back of the body of connector, substrate erection space, installation strength, processability etc., suitably design shape, the size of described connecting portion 263 in the case of considering.

Desirable state is that described main part 261 is cylindrical shape, and arranges to the holding section 266 of the outside curve engaging with the fastener 464 of described earthy conductor 46 at its fore-end.Described holding section 266 is arranged on the whole circumference of fore-end, as long as and can engage, contact, can have any shape.Confining force, processability etc. in the time considering the low back of the body of connector, connective stability (contact stabilization), cooperation, suitably design shape, the size of described holding section 266.Consider the low back of the body of connector, holding section 266 is arranged to the fore-end of described main part 261.

Described external conductor 26 is held in described insulator 222 by one-body molded in the present embodiment.As described external conductor 26 being held in to the method for described insulator 222, as long as can keep, can be any means, can be pressed into, deposited, clasp joint etc.The low back of the body of connector, confining force, elasticity, intensity, processability etc., suitably design keeping method in the case of considering.

In described main part 261 and described insulator 222, form the cooperation mouth 212 entering for described plug connector 40.Described cooperation mouth 212 is as long as can enter for described plug connector 40, and obtain stable connection, its shape, big or small according to the shape of described plug connector 40, size, and consider that miniaturization (the ultralow back of the body), the intensity etc. of connective stability, connector suitably design.

Consider connective stability (contact stabilization), coordinate time confining force time, above-mentioned shape is desirable.Consider processability, based on Figure 17 (A), other external conductor 26 is described here.Herein, describe for the part different from said external conductor 26.Different parts is the shape of described main part 461.

By the main part 261 at described external conductor 26, multiple grooves (slit) 265 are set, thereby can utilize multiple plate-like tile 264 to form the periphery of described external conductor 26, and at the front end of described plate-like tile 264, at least more than one holding section 266 to the outside curve engaging with the fastener 464 of described earthy conductor 46 is set.In the present embodiment, by eight grooves 265 being set at described external conductor 26, thereby can utilize eight plate-like tile 264 to form the periphery of described external conductor 26, every a plate-like tile 264, arrange to the described holding section 266 of the outside curve engaging with the fastener 464 of described earthy conductor 46 at the front end of described plate-like tile 264.The position of described groove 265, number, size are (conversely, the position of described plate-like tile 264, number, size), suitably design the confining force in the time considering the ultralow back of the body of connector, processability, connective stability (contact stabilization), cooperation etc.

Next based on Figure 16, insulator 222 is described.This insulator 222 is electrical insulating property plastics, can make by the injection mo(u)lding as known technology, as material, in the situation that considering dimensional stability, processability, cost etc., suitably select, generally can enumerate the synthetic material of polybutylene terephthalate (PBT) (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), Merlon (PC), polyphenylene sulfide (PPS) or these materials.In order to be installed on substrate, and while considering thermal endurance, preferred polyamide, liquid crystal polymer, polyphenylene sulfide etc.At described insulator 222 by the described center conductor 224 of one-body molded installation and described external conductor 26.

Described insulator 222 is cuboid roughly, in the position corresponding with the connecting portion 243 of described center conductor 224, recess 221 is set.The size of described recess 221 be for can make described connecting portion 243 be installed on substrate, and outstanding.The effect of described recess 221 is in the time coordinating with described plug connector 40, described earthy conductor 46 is not contacted with described connecting portion 243,, even if engagement height is the low back of the body (even if the distance of the earthy conductor 46 of the connecting portion 243 of described center conductor 224 and described plug connector 40 is close), the bad connection such as be not short-circuited yet.And, also become the benchmark while being installed to substrate.Size, the shape of described recess suitably design the ultralow back of the body of above-mentioned effect, connector, substrate erection space, processability intensity etc. in the case of considering.

Describe based on Figure 21 pair of insulator 222 different from Figure 16.Only difference is described herein.As difference, it is the through hole that is provided for the holding section 266 of the described external conductor 26 that exits Figure 17 (A) when one-body molded.

Below the plug connector 40 as matching connector is slightly explained.Described plug connector 40 at least comprises the signal conductor 44 contacting as the parts 42 of insulant, with described center conductor 224 and the earthy conductor 46 that contacts and engage with described external conductor 26.

First described signal is described with conductor 44.This signal is metal system with conductor 44, and makes by the punch process as known technology.Material as described signal with conductor 44, owing to requiring elasticity, conductivity etc., so can enumerate beryllium copper or phosphor bronze etc.

Described signal at least has the contact site 441 contacting with described center conductor 224, the connecting portion 443 being connected with cable 80 with conductor 44.In the present embodiment, described signal is held in described parts 42 with conductor 44 by one-body molded.As the method that described signal is held in to described parts 42 with conductor 44, as long as can keep, can be any method, can be pressed into, deposited, clasp joint etc.Suitable design keeping method in the situation that considering confining force, elasticity, intensity, processability etc.

As shown in figure 18, two plate-like tile of contact site 441 parallel deployment (so-called socket (socket) shape) of conductor 44 for described signal, make fore-end form curved shape, and between two plate-like tile, insert described center conductor 224, make thus its connection.The shape of described contact site 441, size need only can stablize connection, and in the case of considering suitably design the ultralow back of the body of connective stability, connector, processability.

Described connecting portion 443 is the parts that are connected with the inner wire of described coaxial cable 80, is plate-like tile in the present embodiment, and makes its connection by deposited.In the present embodiment by the deposited wiring of carrying out described coaxial cable 80, as long as but can make described coaxial cable 80 and described connecting portion 443 wiring, can be any means, can enumerate soldering, crimping, pressure welding etc.Shape, the size of described connecting portion 443 suitably design according to mode of connection, maintenance intensity, connective stability, processability etc.As in this embodiment, by deposited connection, the low back of the bodyization of the connector during to cooperation is also favourable, and can obtain high connecting reliability and keep by force intensity.In addition, preferably as in this embodiment, when deposited, in the position of configuration inner wire, ditch portion is set.

Next based on Figure 20, parts (insulator) 42 are described.These parts 42 are electrical insulating property plastics, make by the injection mo(u)lding as known technology, as this material, in the situation that considering dimensional stability, processability, cost etc., suitably select, but generally can enumerate the synthetic material of polybutylene terephthalate (PBT) (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), Merlon (PC) or these materials.At described parts 42 by the described conductor 44 for signal of one-body molded installation.

Described insulator 42 is formed as roughly cuboid, and the through hole 421 entering for described contact site 441 is being set with position corresponding to the contact site 441 of conductor 44 with described signal.The shape of described through hole 421, size if according to described signal shape, the size with the contact site 441 of conductor 44, can enter and displacement for described contact site 441, and suitably design in the situation that considering displacement, processability, intensity etc.

Described insulator 42 arranges four projections 422 in the opposition side of described through hole 421.Described projection 422 is connected and forms space with the main body 461 of described earthy conductor 46 by front end.Described signal is positioned at described space with the connecting portion 443 of conductor 44, and can make described connecting portion 443 not contact with described earthy conductor 46.Shape, the size of described projection 422 suitably design the low back of the body of its effect, connective stability, connector, intensity, processability etc. in the case of considering.

Next based on Figure 19, earthy conductor 46 is described.This earthy conductor 46 is metal system and makes by the punch process as known technology.As the material of described earthy conductor 46, owing to requiring elasticity, mouldability etc., so, can enumerate beryllium copper or phosphor bronze etc.Described earthy conductor 46 is for being electrically connected and mechanical connection with the external conductor 26 of described coaxial cable 80, described socket connector 220 as external conductor.

Described earthy conductor 46 mainly has main body 461, connecting portion 463, lid 465, fastener 464.Described earthy conductor 46 passes through punch process, become the shape (not shown) of regulation by raw material punch process, then, carry out again the bending machining (not shown) of punch process, described insulator 42 is placed in to earthy conductor 46, state described that described insulator 42 is one-body molded is connected with described coaxial cable 80 conductor 44 for signal, carry out again bending machining (crimping processing), described coaxial cable 80 and the connecting portion 463 of described earthy conductor 46 are riveted, form Figure 19 (A) and shape (B).

The parts that enter and keep for described insulator 42 in the inner side of described main body 461 and described lid 465.Utilize described main body 461 and described lid 465 to form the shape entering for described insulator 42.Described main body 461 and described lid 465 be as long as can enter for described insulator 42, and according to the shape of described insulator 42, and the ultralow back of the body, processability etc. while considering miniaturization, the cooperation of confining force, connector suitably designs.

At the outer peripheral portion of the main body 461 of described earthy conductor 46, the fastener 464 engaging with the holding section 266 of described external conductor 26 is designed to fold laterally.As long as described fastener 464 can engage with described holding section 266, suitably design the ultralow back of the body, processability, intensity etc. in the time considering to coordinate.

Described connecting portion 463 is the parts that are connected with the braiding (outer conductor) of described coaxial cable 80.In the present embodiment, described connecting portion 463 is formed as general cylindrical shape, makes its connection by knitted parts described in pressure welding.As long as the shape of described connecting portion 463, size can be connected with described braiding, and consider that connective stability, bonding strength, processability etc. suitably design.

It should be noted that, foregoing only represents one of embodiments of the present invention example, can within the scope of rights protection, add various changes.

Embodiment

Next manufacture experimently and evaluate plug connector of the present invention, being described as follows.

Plug connector shown in embodiment is except using the earthy conductor shown in Fig. 7, there is the structure shown in Fig. 1, that characteristic impedance is the coaxial cable plug connector of 50 Ω, comprise the signal conductor being formed by steel nisiloy (Corson) class Cu alloy material, the earthy conductor being formed with phosphor bronze material by spring, the insulator being formed by LCP material, signal is 0.85mm with the distance d of the front end of the contact portion of conductor and the inner conductor of coaxial cable, about the size of three recesses, its depth dimensions is all 0.04mm, the thickness of earthy conductor is 0.1mm.The gauge of connector is 0.62mm.Signal is 0.4mm with the width dimensions of the connecting portion of conductor, and the diameter of the inner conductor of coaxial cable is 0.15mm, and signal is 0.4mm with the width dimensions of the connecting portion of conductor, is 2.66 times of diameter of the inner conductor of coaxial cable.

For reference in addition, also manufacture experimently the plug connector of comparative example, the plug connector of this comparative example, except not arranging recess at earthy conductor, has the structure identical with the plug connector of embodiment, contrasts carry out performance evaluation with embodiment.Evaluation result is shown in table 2.

(performance evaluation)

The mensuration of 1.VSWR

The mensuration of VSWR utilizes net analysis instrument to carry out.

2. the mensuration of connector intensity (pulling out the intensity of portion while pulling out connector)

Connector intensity is measured by cupping machine.

[table 2]

?	Embodiment	Comparative example
			The measured value of VSWR	1.05	1.40
The intensity (N) of connector	10	7

Result is as shown in Table 2 known, and embodiment is compared with comparative example, and VSWR improves, and the intensity of connector is high.

In addition, in reference, utilize light microscope to be provided with connector that the connector of recess and earthy conductor do not arrange recess and to measure the thickness of connector for earthy conductor, do not arrange in the connector of recess at described earthy conductor, in order to make characteristic impedance identical with the connector that is provided with recess, and increase vertical range X, and be provided with earthy conductor and signal conductor, the thickness that result is provided with the connector of recess is 0.62mm, and the thickness that the connector of recess is not set is 0.66mm.Also can be judged the slimming (the low back of the body) that has realized connector thickness by this result.

Utilizability in industry

According to the present invention, the plug connector that can be provided for connecting coaxial cable and use, especially for the RF module in the inner body of connecting electronic instrument and the plug connector of antenna, described plug connector is by being grounded the rationalization in two opposed regions of conductor that configure in opposite directions with conductor with conductor and signal, can (not change the overall dimension of connector and not increase formation signal conductor, in the situation of the use amount of the electric conducting material of earthy conductor, ) adjust, particularly carry out the adjustment from low characteristic impedance value to high impedance value, thereby improve VSWR, keep the characteristic impedance of coaxial cable, and can realize the low back of the body.

In addition, the present invention can be provided for the communication equipment such as smart mobile phone, notebook computer, electric equipment, electronic instrument, and can not cause the increase of substrate manufacturing costs, in the time that engagement height is the ultralow back of the body of about 0.8mm, also can not mismatch and mistake dress even if having, and can stablize connection and without plug connector, the socket connector of the structure of the unfavorable conditions such as short circuit and the coaxial connector being formed by these plug connectors and socket connector.

Meet explanation

1 plug connector

3 signal conductors

5 earthy conductors

7 insulators

9 contact portions

11 connecting portions

13 two opposed regions of conductor

15 apart from expansion section

17 recesses

19 heavy wall interval parts

20 coaxial cables

21 projections

22 inner conductors

23 through holes

24 external conductors

26 external conductors

40 plug connectors

42 parts

44 conductors for signal (or receptacle contact)

46 earthy conductors (or housing)

80 coaxial cables

212 coordinate mouth

220 socket connectors

222 insulators

221 recesses

224 center conductors

241 contact sites

243 connecting portions

261 main parts

263 connecting portions

264 plate-like tile

265 grooves

266 holding sections

421 through holes

422 projections

441 contact sites

442 fixed parts

443 connecting portions

461 main bodys

463 connecting portions

464 fasteners

465 lids

Claims (12)

1. a plug connector, comprising:

Signal conductor, this signal is made up of electric conducting material with conductor, and has the contact portion being electrically connected with the contactor of matching connector and the connecting portion being electrically connected with the inner conductor exposing of coaxial cable,

Earthy conductor, is made up of electric conducting material, and is electrically connected with the external conductor of described coaxial cable,

Insulator, is made up of electrical insulating material, and form by one together with conductor with this signal, and make electric insulation between signal conductor and earthy conductor,

It is characterized in that, while observation in the cross section of the length direction that comprises described signal conductor,

For the adjustment of carrying out mating with the resistance value of regulation, two opposed regions of conductor that configure in opposite directions with conductor at described earthy conductor and described signal, form apart from expansion section, described apart from expansion section in the case of not increasing the gauge of connector, make the inner surface of described earthy conductor and become large with the vertical range at the back side of opposed, the described signal of this inner surface conductor.

2. plug connector according to claim 1, wherein, the inner conductor exposing of described coaxial cable clamps described signal conductor, and is positioned at a side contrary with described earthy conductor.

3. plug connector according to claim 2, wherein, described signal is positioned at the position at the length direction interval predetermined distance of signal conductor with respect to the front end of the inner conductor of the coaxial cable being connected with described connecting portion with the contact portion of conductor.

4. according to the plug connector described in claim 1,2 or 3, wherein, the recess of at least one of the described back side apart from expansion section with at least one inner surface that is formed at described earthy conductor and described signal conductor.

5. plug connector according to claim 4, wherein, describedly form in the mode that multiple recesses is set at described earthy conductor apart from expansion section, described earthy conductor has the heavy wall interval parts that is positioned at the direction of extending between described recess and along the length direction that traverses described signal conductor.

6. according to the plug connector described in any one in claim 1～5, it is characterized in that, described signal is configured to the writing board shape of the width dimensions of 1～5 times of the diameter of the inner conductor with described coaxial cable with the connecting portion of conductor.

7. according to the plug connector described in any one in claim 1～6, it is characterized in that, in the front of earthy conductor, through hole is set, also can insert projection wherein in insulator setting for described through hole location.

8. a socket connector, this socket connector freely coordinates with the plug connector that is connected with coaxial cable with loading and unloading, comprising:

Center conductor, has with the contact site of the signal conductor contact of described plug connector and is installed on the connecting portion of substrate,

External conductor, has with the contact site of the earthy conductor contact of described plug connector and is installed on the connecting portion of substrate,

Insulator, for keeping described center conductor and described external conductor,

It is characterized in that, described insulator arranges recess in the outstanding part of the connecting portion of described center conductor, the connecting portion of described center conductor in described recess,

Described external conductor arranges holding section at its front end, and described holding section is to the outside curve engaging with the earthy conductor of described plug connector.

9. socket connector according to claim 8, is characterized in that, by multiple grooves being set at described external conductor, the periphery of described external conductor is formed by multiple plate-like tile,

At the front end of described plate-like tile, at least more than one holding section is set, described holding section is to the outside curve engaging with the earthy conductor of plug connector.

10. socket connector according to claim 9, is characterized in that, by eight grooves are set at described external conductor, the periphery of described external conductor is formed by eight plate-like tile,

Every a plate-like tile, at the front end of described plate-like tile, holding section is set, described holding section is to the outside curve engaging with the earthy conductor of described plug connector.

Socket connector described in 11. according to Claim 8,9 or 10, is characterized in that, described center conductor and described external conductor are held in to described insulator by one-body molded.

12. coaxial connectors that formed by the socket connector described in any one in the plug connector described in any one in claim 1～7 and claim 8～11.