CN107887735B - Coaxial connector - Google Patents
Coaxial connector Download PDFInfo
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- CN107887735B CN107887735B CN201711210260.1A CN201711210260A CN107887735B CN 107887735 B CN107887735 B CN 107887735B CN 201711210260 A CN201711210260 A CN 201711210260A CN 107887735 B CN107887735 B CN 107887735B
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- movable terminal
- arm
- terminal
- movable
- coaxial connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2414—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means conductive elastomers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
- H01R24/50—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
A coaxial connector comprises a body part, a shell module vertically stacked and fixed with the body part, and a fixed terminal and a movable terminal correspondingly fixed in the body part, wherein the movable terminal comprises a movable terminal substrate and a movable terminal function arm formed by extending one side of the movable terminal substrate towards the direction of the fixed terminal, the movable terminal is also provided with at least one movable terminal elastic arm, one part on the movable terminal elastic arm can be abutted with the body part to form a first simply-supported part, the other part on the movable terminal elastic arm is abutted with the lower surface of the movable terminal function arm to form a second simply-supported part, and the free end of the movable terminal function arm or the free end of the movable terminal elastic arm is in contact with the fixed terminal. Through the arrangement of the movable terminal elastic arm, the contact and disconnection performance of the movable terminal with the fixed terminal after being operated for many times can be still stable and reliable.
Description
Technical Field
The present invention relates to a coaxial connector, and more particularly, to a coaxial connector mounted on a circuit board to switch signal paths.
Background
In the field of electronic information that is becoming more and more miniaturized today, a variety of devices such as mobile phones, tablet devices, wireless lan devices, etc., it is often necessary to achieve free switching of an internal antenna and an external antenna by a switching function of a coaxial connector. In addition, the coaxial connector is also often mounted in a circuit board for connecting an external test head to the circuit board for testing the high frequency characteristics of the circuit board. As the profile of electronic information equipment becomes smaller, the demand for such coaxial connectors is becoming more and more widely used. As is well known, the smaller the profile, the more difficult the switch function is to be realized, and therefore, the key technology of such coaxial connectors is how to solve the unreliable problems of switch failure and good and bad function in the case of a miniaturized structure.
A conventional coaxial connector generally includes an insulating body, a movable terminal and a fixed terminal fixed in the insulating body, wherein the movable terminal is elastically deformed to be in contact with or disconnected from the fixed terminal to form an electrical switching function, and in the process, the movable terminal is completely deformed to be in contact with or disconnected from the fixed terminal. Therefore, the movable terminal is required to provide both the electric contact with the fixed terminal and the restoring force required for restoring to the contact state with the fixed terminal when the movable terminal is disconnected from the fixed terminal, and when the structure is miniaturized, the elastic arm of the movable terminal is too short to easily generate plastic deformation, so that the switch is failed due to insufficient elasticity.
Related art reference is made to japanese patent No. 4442719, in which fig. 9 is an exploded perspective view of a coaxial connector 500 shown in related art. In fig. 9, the vertical direction is defined as the Z-axis direction, the direction in which the movable terminal 508 and the fixed terminal 510 are aligned is the X-axis direction, and the direction perpendicular to the X-axis direction and the Z-axis direction is the Y-axis direction. As shown in fig. 9, the coaxial connector 500 includes: an external terminal 502; an upper case 504; a lower housing 506; movable terminal 508 and fixed terminal 510. The external terminal 502 is made of a conductive material capable of securing a ground potential. Upper case 504 and lower case 506 are made of an insulating material such as resin, and constitute a main body of coaxial connector 500. The external terminal 502, the upper case 504, and the lower case 506 are stacked in this order from the positive direction side to the negative direction side in the Z-axis direction. Further, a movable terminal 508 and a fixed terminal 510 are provided between the upper case 504 and the lower case 506. The movable terminal 508 contacts the fixed terminal 510 from the lower side. However, when a probe, not shown, is inserted through a hole provided in the upper case 504, the probe presses the movable terminal 508 downward. Thereby, the movable terminal 508 and the fixed terminal 510 are separated.
In the prior art, it is difficult to achieve both the improvement of durability of the movable terminal 508 and the miniaturization of the coaxial connector 500. More specifically, the movable terminal 508 is pressed by the probe and elastically deformed, and is separated from the fixed terminal 510. In order to improve the durability of the movable terminal 508, it is preferable to increase the amount by which the movable terminal 508 can be displaced by elastic deformation. Further, the movable terminal 508 is preferably long. However, if the movable terminal 508 is lengthened, the coaxial connector 500 becomes larger.
In view of the above, it is necessary to design a new coaxial connector to fulfill the above functional requirements.
Disclosure of Invention
The invention provides a coaxial connector, which can ensure the sufficient miniaturization of the external dimension and can realize the stable and reliable contact and disconnection performance of a movable terminal and a fixed terminal after being operated for many times.
In order to achieve the above object, the present invention provides a coaxial connector having a mating hole into which an external probe is inserted, the coaxial connector being adapted to be fixed to a circuit board, the coaxial connector comprising a body portion, a housing module fixed to the body portion, and a fixed terminal and a movable terminal fixed to the body portion and/or the housing module, respectively, the fixed terminal comprising a fixed terminal contact portion, the movable terminal comprising a movable terminal substrate, a movable terminal function arm formed by extending one side of the movable terminal substrate in a direction toward the fixed terminal, a movable terminal mating pin formed by bending and extending the other side of the movable terminal substrate and correspondingly exposing the body portion and the housing module, the movable terminal function arm being at least partially exposed from the mating hole, the movable terminal function arm being elastically deformable in an insertion and extraction direction of the external probe, the movable terminal is further provided with at least one movable terminal elastic arm, one part of the movable terminal elastic arm extends towards the fixed terminal direction, the movable terminal elastic arm can be abutted with the body part to form a first simple support part, the other part of the movable terminal elastic arm is abutted with the lower surface of the movable terminal function arm to form a second simple support part, the free end of the movable terminal function arm or the free end of the movable terminal simple support arm is contacted with the fixed terminal contact part, and the movable terminal elastic arm can extend forwards after being pressed downwards.
As a further improvement of the present invention, the at least one movable terminal elastic arm and the movable terminal functional arm are arranged in parallel and extend in the same direction in a plan view of the movable terminal.
As a further improvement of the present invention, the at least one movable terminal elastic arm is formed by extending the movable terminal substrate at a side edge adjacent to the movable terminal functional arm.
As a further improvement of the present invention, the movable terminal elastic arm and the movable terminal functional arm extend toward the same side of the body portion.
As a further improvement of the present invention, the at least one movable terminal elastic arm is bent toward the main body at a middle position in an extending direction thereof and can abut against the main body to form a first simply supported portion.
As a further improvement of the present invention, the free end of the at least one movable terminal elastic arm is abutted against the lower surface of the movable terminal functional arm to form a second simply supported portion.
As a further improvement of the present invention, the free end of the at least one movable terminal elastic arm further extends to form a movable terminal abutting arm, the extending direction of the movable terminal abutting arm is perpendicular to the extending direction of the movable terminal functional arm, and the movable terminal abutting arm abuts against the lower surface of the movable terminal functional arm to form a second simple supporting portion.
As a further improvement of the present invention, the movable terminal elastic arms are provided with two, the free ends of the two movable terminal elastic arms are integrally connected through at least one movable terminal abutting arm, and the part of the movable terminal abutting arm between the two movable terminal elastic arms is abutted against the lower surface of the movable terminal functional arm to form a second simply supported part.
As a further improvement of the present invention, the movable terminal elastic arms are provided with two movable terminal abutting arms, the free ends of the two movable terminal elastic arms and the corresponding two movable terminal abutting arms are not connected to each other, and the movable terminal abutting arms respectively abut against the lower surfaces of the movable terminal functional arms to form second simply supported portions.
As a further improvement of the present invention, a movable terminal abutting arm is formed at a free end of the at least one movable terminal elastic arm by being folded back and extended, in the inserting and pulling direction of the external probe, at least a portion of the movable terminal abutting arm is overlapped with the free end of the movable terminal elastic arm, and the movable terminal abutting arm abuts against a lower surface of the movable terminal functional arm to form a second simply supported portion.
As a further improvement of the present invention, the movable terminal elastic arm is provided with two, and the movable terminal abutting arm formed on the at least one movable terminal elastic arm is correspondingly lapped on the upper surface of the free end of the other movable terminal elastic arm.
As a further improvement of the present invention, the circuit board is a horizontal surface, and the movable terminal abutting arm is at least partially abutted and covered on an upper surface of a free end of the movable terminal elastic arm, so that the movable terminal abutting arm is at least partially abutted and overlapped with the free end of the movable terminal elastic arm.
The invention has the beneficial effects that: the movable terminal function arm is formed with a movable terminal elastic arm on each side, each movable terminal elastic arm and the body part form a first simple support part, and the free end of each movable terminal elastic arm directly or indirectly forms a first simple support part with the movable terminal function arm, thereby preventing the movable terminal function arm from generating plastic deformation and improving the durability of the movable terminal. Meanwhile, the movable terminal function arm and the movable terminal elastic arm are adjacent and extend in the same direction, so that the effective length of the movable terminal elastic arm is increased as much as possible, and the overall size miniaturization design of the coaxial connector can be guaranteed. The whole connector is exquisite in design, and the movable terminal is reasonable in structural configuration of all parts and stable in contact with the fixed terminal.
Drawings
Fig. 1 is a perspective view of the coaxial connector of the present invention.
Fig. 2 is a perspective view of the coaxial connector of fig. 1 from another angle.
Fig. 3 is a partially exploded perspective view of the coaxial connector of the present invention, showing the housing module separated from the body.
Fig. 4 is an exploded perspective view of the coaxial connector of the present invention.
Fig. 5 is an exploded perspective view of the coaxial connector of fig. 4 from another perspective.
Fig. 6 is a perspective view of a second embodiment of the fixed terminal of the coaxial connector of the present invention.
Fig. 7 is a perspective view schematically showing a second embodiment of the movable terminal of the coaxial connector of the present invention.
Fig. 8 is a perspective view of the movable terminal of the coaxial connector of the present invention shown in fig. 7 from another angle.
Fig. 9 is a schematic perspective view of a movable terminal of a coaxial connector according to a third embodiment of the present invention.
Fig. 10 is a perspective view of the movable terminal of the coaxial connector of the present invention shown in fig. 9 from another angle.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The present invention is not limited to the embodiments, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.
Referring to fig. 1 to 5, a coaxial connector 100 of the present invention includes a body 11, a housing module 12 stacked and fixed on the body 11, and a fixed terminal 13 and a movable terminal 14 fixed between the body 11 and the housing module 12. In the present invention, the fixed terminal 13 and the movable terminal 14 are fixed to positions on both sides of the main body 11 by assembling. The movable terminal 14 is elastically abutted against the fixed terminal 13. The coaxial connector 100 can be used for soldering to an internal circuit substrate of various electronic devices, freely switching between an internal antenna and an external antenna by a switching function between the movable terminal 14 and the fixed terminal 13, and connecting an external test head to the circuit substrate for testing the high frequency characteristics of the circuit substrate.
Referring to fig. 4 and 5, the main body 11 is made of an insulating material. Comprises a body 111 and a limiting part 112 formed by extending upwards from two opposite sides of the body 111. The body 111 and the stoppers 112 on both sides form a receiving space 110 for mounting the movable terminal 14 and the fixed terminal 13. The middle position of the body 111 is recessed downwards to form a relief groove 1110. The middle position of the receding groove 1110 is formed by a vertical limiting column 1111 which is formed by upward protruding of the body 111. The body 111 has a plurality of fixing grooves 1112 formed at two sides thereof adjacent to the position of the limiting portion 112 and recessed downward for fixing the movable terminal 14 and the fixed terminal 13. Lock holes 1113 are formed through the body 11 at two opposite side edges. The locking holes 1113 are located at the middle position of the limiting portions 112.
Referring to fig. 3 to 5, the housing module 12 includes an outer conductor 121 made of a conductive material and an insulating module 122 fixed to the outer conductor 121 and made of an insulating material. The outer conductor 12 includes a flat outer conductor substrate 1211, a cylindrical portion 1212 extending upward from the middle of the outer conductor substrate 1211 and having a substantially cylindrical shape and penetrating vertically, and a latching portion 1213 formed by bending the outer conductor substrate 1211 at opposite side edges. The insulating module 122 includes an insulating base 1221 correspondingly attached to the lower surface of the outer conductor substrate 1211, an insulating cylinder 1222 correspondingly attached to and received in the cylindrical portion 1212, and hook portions 1223 respectively formed by extending vertically downward from the lower surfaces of the opposite sides of the insulating base 1221. An abutting hole 1220 is formed at a middle position of the insulating module 122 so as to vertically penetrate the insulating cylinder 1222 and the insulating base 1221. The insulation module 122 is correspondingly fixed with the outer conductor 121 by injection molding and forms the housing module 12. The housing module 12 is stacked and fixed on the body 11 from top to bottom, the hook 1223 of the insulating module 122 is inserted into the locking hole 1113, and the buckling 1213 is bent and buckled on the lower surface of the body 111.
Referring to fig. 2 to 5, the fixed terminal 13 is formed by stamping and bending a metal plate. The connector comprises a fixed terminal substrate 131 which is in a flat plate shape, a fixed terminal fixing pin 132 which is formed by respectively bending and extending two side edges of the fixed terminal substrate 131 downwards, a fixed terminal butt-joint pin 133 which is formed by bending and extending one end of the fixed terminal substrate 131 downwards and a fixed terminal contact part 134 which is formed by further horizontally extending the other end of the fixed terminal substrate 131 forwards. In this embodiment, two fixed terminal contact portions 134 are provided and spaced apart from each other and arranged in parallel, and the fixed terminal contact portions 134 are used for mating with the movable terminals 14. The fixed terminal 13 is fixed to the body 11 from top to bottom by assembling. The fixed terminal fixing legs 132 are inserted into and fixed in the fixing grooves 1112. The fixed terminal substrate 131 is correspondingly attached to an upper surface of one end of the body 111. The fixed terminal connection pins 133 extend downward from one end of the body 111 and are exposed outside the body 111 for connection with a circuit board. The fixed terminal contact 134 correspondingly protrudes above the relief groove 1110.
Referring to fig. 2 to 5, the movable terminal 14 is formed by stamping and bending a metal plate. The terminal comprises a movable terminal substrate 141 in a flat plate shape, a movable terminal fixing leg 142 formed by bending and extending two side edges of the movable terminal substrate 141 downwards, a movable terminal butt leg 143 formed by bending and extending one end of the movable terminal substrate 141 downwards, a movable terminal function arm 144 formed by extending the other end of the movable terminal substrate 141 forwards and capable of elastic deformation in the vertical direction, and two movable terminal elastic arms 145 extending from the movable terminal substrate 141 and positioned at two sides of the movable terminal function arm 144. In this embodiment, in a plan view of the movable terminal 14, the movable terminal elastic arm 145 and the movable terminal functional arm 144 are arranged in parallel and extend in the same direction.
In this embodiment, the movable terminal 14 is fixed to the main body 11 from top to bottom by assembling. The movable terminal fixing legs 142 are inserted into and fixed to the fixing grooves 1112. The movable terminal substrate 141 is correspondingly attached to the upper surface of the other end of the body 111. The movable terminal connecting pin 143 extends downward from the other end of the body 111 and is exposed outside the body 111 for connecting with a circuit board. The movable terminal function arm 144 correspondingly protrudes above the limiting post 1111, and the free end of the movable terminal function arm 144 correspondingly protrudes between the two fixed terminal contact portions 134 of the fixed terminal 13 and is not in contact with the fixed terminal contact portions 134. Each movable terminal elastic arm 145 bends downward at the middle position in the extending direction of the movable terminal function arm 144 and protrudes into the relief groove 1110 and can be supported on the bottom wall of the relief groove 1110 correspondingly to form a first simply supported portion 1451. The free ends of the two movable terminal spring arms 145 are integrally connected by a movable terminal abutment arm 1450. The movable terminal abutting arm 1450 abuts against a lower portion of the free end of the movable terminal function arm 144 to form a second simply supported portion 1452. The free end of each movable terminal elastic arm 145 is in contact with the lower surface of the free end of each fixed terminal contact portion 134. In this embodiment, the extending direction of the movable terminal contact arm 1450 is perpendicular to the extending direction of the movable terminal function arm 144.
In this embodiment, the positioning posts 1111 are mainly used to prevent the movable terminal function arms 144 from being pressed down excessively. For limiting the contact depression stroke with the movable terminal function arm 144 after the external probe is actually inserted into the coaxial connector 100.
In this embodiment, the first simply supported portion 1451 of the movable terminal elastic arm 145 is always in contact with the bottom wall of the receding groove 1110 to form a simply supported structure during the process of inserting and extracting the external probe into and from the coaxial connector 100. Of course, in other embodiments, it can also be designed that when the external probe is not inserted into the coaxial connector 100, the first simply supporting portion 1451 of the movable terminal elastic arm 145 is not in contact with the bottom wall of the relief groove 1110, and when the external probe is inserted into the coaxial connector 100 and presses the movable terminal function arm 144 downward to a certain stroke, the first simply supporting portion 1451 of the movable terminal elastic arm 145 starts to contact with the bottom wall of the relief groove 1110 to form a simply supporting structure.
In this embodiment, the movable terminal elastic arm 145 is bent downward and pulled back at the middle position in the extending direction of the movable terminal function arm 144, so that the movable terminal abutting arm 1450 abuts against the lower part of the free end of the movable terminal function arm 144 correspondingly. When the device is used, an external probe (not shown) is inserted from top to bottom through the docking hole 1220 and correspondingly pressed against the movable terminal function arm 144 to press the movable terminal function arm 144 downward, at this time, the free end of the movable terminal function arm 144 correspondingly presses the movable terminal docking arm 1450 downward, and due to the simple support effect of the first simple support portion 1451 of the movable terminal elastic arm 145, the free end of the movable terminal elastic arm 145 is further urged to move downward and forward, so that the free end of the movable terminal elastic arm 145 is disconnected from the fixed terminal 13. In the process of the actuation, due to the first and second simply supported portions 1451 and 1452 formed at the corresponding positions of the movable terminal elastic arm 145, the movable terminal elastic arm 145 has a two-point simply supported structure, which can maximally disperse the stress generated when the movable terminal elastic arm 145 is deformed after being pressed down, and at the same time, can ensure that the movable terminal elastic arm 145 has sufficient resilience and is not easy to plastically deform, thereby improving the durability of the movable terminal 14.
In addition, the movable terminal elastic arm 145 has a two-point simple support structure, so that the free end of the movable terminal elastic arm 145 can extend forward after the movable terminal elastic arm 145 is pressed down, and the free end of the movable terminal elastic arm 145 and the fixed terminal 13 can generate scraping displacement action, so that the effect of scraping and removing dust can be realized, and the contact stability of the fixed terminal 13 and the movable terminal 14 can be further ensured.
In addition, because of the structure of the movable terminal function arm 144 (the movable terminal function arm 144 is in a cantilever shape with one end fixed), during the process of pressing and rebounding the movable terminal function arm 144, the stress on the movable terminal function arm 144 is more concentrated than the movable terminal elastic arm 145, so that the movable terminal function arm 144 is more easily plastically deformed than the movable terminal elastic arm 145, therefore, in this embodiment, the movable terminal abutting arm 1450 is designed to be correspondingly pressed below the free end of the movable terminal function arm 144 to form a simple support, so that the rebounding force of the movable terminal function arm 144 can be ensured, and the risk of the movable terminal function arm 144 being pressed and yielding is reduced.
In addition, the movable terminal elastic arm 145 and the movable terminal function arm 144 are arranged side by side and extend in the same direction, so that the overall size of the coaxial connector 100 can be ensured to be small.
Referring to fig. 6, a second embodiment of the fixed terminal 13 of the coaxial connector 100 according to the present invention is shown, the fixed terminal 13 'in the second embodiment is similar to the first embodiment (fig. 1 to 5), and is formed by stamping and bending a metal plate, and includes a flat fixed terminal substrate 131', fixed terminal fixing legs 132 'formed by bending and extending two side edges of the fixed terminal substrate 131' downward, fixed terminal mating legs 133 'formed by bending and extending one end of the fixed terminal substrate 131' downward, and fixed terminal contact portions 134 'formed by extending the other end of the fixed terminal substrate 131' forward and horizontally. The difference from the first embodiment is that only one fixed terminal contact portion 134' is provided in the second embodiment. The fixed terminal contact portion 134' is also used for mating with the movable terminal 14, specifically: the free end of the movable terminal function arm 144 is abutted against the lower surface of the free end of the fixed terminal contact portion 134' to make contact. Compared with the first embodiment, the fixed terminal contact portion 134' in the second embodiment has no scraping effect during contact disconnection with the movable terminal 14.
Referring to fig. 7 and 8, a second embodiment of the movable terminal 14 of the coaxial connector 100 according to the present invention is shown, the movable terminal 14 'in the second embodiment is similar to the first embodiment (fig. 1 to 5), and the movable terminal 14' in the second embodiment is also formed by bending and pressing a metal plate, and includes a movable terminal substrate 141 'having a flat plate shape, movable terminal fixing legs 142' formed by bending and extending downward from both side edges of the movable terminal substrate 141', a movable terminal abutting leg 143' formed by bending and extending downward from one end of the movable terminal substrate 141', a movable terminal function arm 144' formed by extending forward from the other end of the movable terminal substrate 141 'and elastically deformable in the up-down direction, and two movable terminal elastic arms 145' extending from the movable terminal substrate 141 'and located on both sides of the movable terminal elastic arm 145'. The movable terminal 14' in the second embodiment is different from the first embodiment in that: the free end of each movable terminal elastic arm 145 'is bent and extended to form a movable terminal contact arm 1450' that contacts the lower side of the free end of the movable terminal functional arm 144 'to form a second simply supported portion 1452'. The design can make the two movable terminal elastic arms 145' independent from each other and not affect each other, so as to ensure that under some abnormal use conditions, under the condition that one movable terminal elastic arm 145' is damaged or plastically deformed, the other movable terminal elastic arm 145' can still work normally.
Of course, in the second embodiment of the movable terminal 14', it is preferable that the movable terminal abutting arm 1450' is folded back and extended upward from one side or the free end of the movable terminal elastic arm 145 'and covers the upper surface of the corresponding movable terminal elastic arm 145'. This design increases the stiffness of movable terminal abutment arm 1450 'so that the possibility of plastic deformation of movable terminal abutment arm 1450' is reduced during depression of movable terminal spring arm 145 'and rebound of movable terminal spring arm 145' itself.
Referring to fig. 9 and 10, a third embodiment of the movable terminal 14 of the coaxial connector 100 according to the present invention is shown, the movable terminal 14 "in the third embodiment is similar to the first embodiment (fig. 1 to 5), and the movable terminal 14" in the third embodiment is also formed by bending and pressing a metal plate, and includes a movable terminal substrate 141 "in a flat plate shape, movable terminal fixing legs 142 formed by bending and extending downward from both side edges of the movable terminal substrate 141", movable terminal abutting legs 143 formed by bending and extending downward from one end of the movable terminal substrate 141 ", a movable terminal function arm 144" formed by extending forward from the other end of the movable terminal substrate 141 "and elastically deformable in the up-down direction, and two movable terminal elastic arms 145" extending from the movable terminal substrate 141 "and located on both sides of the movable terminal elastic arm 145". The movable terminal 14 "in the second embodiment is different from the first embodiment in that: the movable terminal contact arm 1450 "is connected to the free end edge of each movable terminal elastic arm 145" correspondingly, and the movable terminal contact arm 1450 "is folded back upward to cover the upper surface of each movable terminal elastic arm 145" correspondingly. The movable terminal contacting arm 1450 "between the two movable terminal elastic arms 145" contacts under the free end of the movable terminal function arm 144 "to form a second simply supported portion 1452".
Of course, the movable terminal 14 ″ of the third embodiment may also be designed such that: the movable terminal contact arm 1450 "is connected to the free end edge of each movable terminal elastic arm 145" correspondingly, and the movable terminal contact arm 1450 "is folded back downward to cover the lower surface of each movable terminal elastic arm 145" correspondingly. The movable terminal abutting arm 1450' between the two movable terminal elastic arms 145' is abutted against the lower portion of the free end of the movable terminal functional arm 144' to form a second simply supported portion 1452 ″, which can also achieve the same effect.
In addition, in another embodiment (not shown) of the second and third embodiments of the movable terminal 14 of the present invention, the movable terminal contact arm 1450 of the movable terminal 14 may be integrally connected to only one of the movable terminal elastic arms 145 and may be folded and extended to correspondingly overlap the upper surface of the other movable terminal elastic arm 145, and the movable terminal contact arm 1450 between the two movable terminal elastic arms 145 may be correspondingly contacted to the lower portion of the free end of the movable terminal function arm 144 to form the second simply supported portion 1452, which may also achieve the same effect.
In another embodiment, the fixed terminal 13 and the movable terminal 14 may be designed to be fixed in the insulating module 122 of the housing module 12, and may be inserted and fixed in the lower surface of the insulating base 1221 of the insulating module 122 from bottom to top. In addition, in another embodiment, the fixed terminal 13 and the movable terminal 14 may be designed such that one is fixed in the insulating module 122 and the other is fixed in the body 11. Further, in still another embodiment, the fixing terminal 13 may be designed to be fixed to the insulating base 1221 or the body portion 11 by integral injection molding.
In another embodiment, the shape of each movable terminal elastic arm 145 may be changed, for example, the movable terminal elastic arm 145 is designed to be "(" shaped "or" < ". in other words, the structure of the movable terminal abutting arm 1450 in the three embodiments shown in fig. 1 to 10 is removed or blurred, but only the middle position of the movable terminal elastic arm 145 is required to abut against the main body 111 to form the first simply-supported portion 1451, and the free end of the movable terminal elastic arm 145 is required to abut against the lower portion of the free end of the movable terminal functional arm 144 to form the second simply-supported portion 1452, which can also achieve the effect of improving the durability of the movable terminal 14 of the present invention, and should be understood as a modified embodiment without departing from the spirit of the present invention.
In the present invention, a movable terminal elastic arm 145 is formed on each side of the movable terminal function arm 144, each movable terminal elastic arm 145 forms a first simply supported portion 1451 with the body 111, and the free end of each movable terminal elastic arm 145 directly or indirectly forms a first simply supported portion 1451 with the movable terminal function arm 144, thereby preventing the movable terminal function arm 144 from being plastically deformed and improving the durability of the movable terminal 14. At the same time, the design of movable terminal function arm 144 adjacent to and extending in the same direction as movable terminal spring arm 145 can increase the effective length of movable terminal spring arm 145 as much as possible, and can ensure the overall size miniaturization design of coaxial connector 100. The whole connector is designed to be exquisite, the structural arrangement of each part of the movable terminal 14 is reasonable, the contact with the fixed terminal 13 is stable, and the connector is really an excellent design integrating the advantages of beautiful appearance, simple manufacturing process, stable function, long service life and the like.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the embodiments is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments may be appropriately changed to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (12)
1. A coaxial connector having a mating hole into which an external probe is inserted, the coaxial connector being for fixing to a circuit substrate, the coaxial connector comprises a body part, a shell module fixed with the body part, and a fixed terminal and a movable terminal which are correspondingly fixed in the body part and/or the shell module, the fixed terminal comprises a fixed terminal contact part, the movable terminal comprises a movable terminal substrate, a movable terminal function arm formed by extending one side of the movable terminal substrate towards the direction of the fixed terminal, and a movable terminal butt-joint pin correspondingly exposed out of the body part and the shell module formed by bending and extending the other side of the movable terminal substrate, at least part of movable terminal function arm is followed the butt joint hole exposes, movable terminal function arm can realize elastic deformation in external probe plug direction, its characterized in that: the movable terminal is further provided with at least one movable terminal elastic arm, the movable terminal elastic arm extends towards the fixed terminal direction, one part of the movable terminal elastic arm can be abutted with the body part to form a first simple support part, the other part of the movable terminal elastic arm is abutted with the lower surface of the movable terminal function arm to form a second simple support part, the free end of the movable terminal function arm or the free end of the movable terminal simple support arm is contacted with the fixed terminal contact part, and the movable terminal elastic arm can extend forwards after being pressed downwards.
2. The coaxial connector of claim 1, wherein: the at least one movable terminal elastic arm and the movable terminal functional arm are arranged in parallel and extend in the same direction when the movable terminal is overlooked.
3. The coaxial connector of claim 1, wherein: the at least one movable terminal elastic arm is formed by extending the movable terminal substrate at one side edge adjacent to the movable terminal functional arm.
4. The coaxial connector of claim 1, wherein: the movable terminal elastic arm and the movable terminal functional arm extend toward the same side of the body portion.
5. The coaxial connector of claim 1, wherein: the middle position of the at least one movable terminal elastic arm in the extending direction of the movable terminal elastic arm is bent towards the body part and can be abutted against the body part to form a first simple supporting part.
6. The coaxial connector according to any one of claims 1 to 5, wherein: the free end of the at least one movable terminal elastic arm is abutted against the lower surface of the movable terminal functional arm to form a second simple supporting part.
7. The coaxial connector of claim 6, wherein: the free end of the at least one movable terminal elastic arm further extends to form a movable terminal abutting arm, the extending direction of the movable terminal abutting arm is perpendicular to the extending direction of the movable terminal functional arm, and the movable terminal abutting arm abuts against the lower surface of the movable terminal functional arm to form a second simply-supported part.
8. The coaxial connector of claim 6, wherein: the movable terminal elastic arms are provided with two movable terminal elastic arms, the free ends of the two movable terminal elastic arms are connected into a whole through at least one movable terminal abutting arm, and the part of the movable terminal abutting arm between the two movable terminal elastic arms is abutted against the lower surface of the movable terminal functional arm to form a second simply-supported part.
9. The coaxial connector of claim 6, wherein: the movable terminal elastic arms are provided with two movable terminal abutting arms, the free ends of the two movable terminal elastic arms and the two corresponding movable terminal abutting arms are not connected with each other, and the movable terminal abutting arms are abutted against the lower surfaces of the movable terminal functional arms respectively to form second simply-supported parts.
10. The coaxial connector of claim 6, wherein: the free end of the at least one movable terminal elastic arm is reversely folded and extends to form a movable terminal abutting arm, in the inserting and pulling direction of the external probe, at least part of the movable terminal abutting arm is abutted and overlapped with the free end of the movable terminal elastic arm, and the movable terminal abutting arm is abutted with the lower surface of the movable terminal functional arm to form a second simply-supported part.
11. The coaxial connector of claim 10, wherein: the movable terminal elastic arm is provided with two movable terminal abutting arms, and the movable terminal abutting arm formed on at least one movable terminal elastic arm is correspondingly lapped on the upper surface of the free end of the other movable terminal elastic arm.
12. The coaxial connector according to claim 10 or 11, wherein: the circuit substrate is used as a horizontal plane, the movable terminal abutting arm is at least partially attached to and covers the upper surface of the free end of the movable terminal elastic arm, and therefore a structure that the movable terminal abutting arm is at least partially attached to and overlapped with the free end of the movable terminal elastic arm is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210260.1A CN107887735B (en) | 2017-11-28 | 2017-11-28 | Coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210260.1A CN107887735B (en) | 2017-11-28 | 2017-11-28 | Coaxial connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107887735A CN107887735A (en) | 2018-04-06 |
| CN107887735B true CN107887735B (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711210260.1A Active CN107887735B (en) | 2017-11-28 | 2017-11-28 | Coaxial connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107887735B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3473531B2 (en) * | 2000-01-07 | 2003-12-08 | 株式会社村田製作所 | Coaxial connector and communication device |
| CN201171125Y (en) * | 2008-02-25 | 2008-12-24 | 诠欣股份有限公司 | Coaxial connector |
| US20090298348A1 (en) * | 2008-05-28 | 2009-12-03 | Hon Hai Precision Ind. Co., Ltd. | Contact terminal with contact engaging portion supported by reinforced spring arm |
| CN202121179U (en) * | 2011-05-24 | 2012-01-18 | 启东乾朔电子有限公司 | Switch type coaxial connector |
| CN204905501U (en) * | 2015-01-09 | 2015-12-23 | 电连技术股份有限公司 | Coaxial connector and movable conductive terminal thereof |
| KR101685604B1 (en) * | 2015-02-16 | 2016-12-12 | 몰렉스 엘엘씨 | Coaxial connector and method for assembling the same |
| CN207664280U (en) * | 2017-11-28 | 2018-07-27 | 昆山嘉华电子有限公司 | Coaxial connector |
-
2017
- 2017-11-28 CN CN201711210260.1A patent/CN107887735B/en active Active
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| Publication number | Publication date |
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| CN107887735A (en) | 2018-04-06 |
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