CN111129814A - A highly reliable elastic thimble and coaxial connector - Google Patents
A highly reliable elastic thimble and coaxial connector Download PDFInfo
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- CN111129814A CN111129814A CN202010026375.0A CN202010026375A CN111129814A CN 111129814 A CN111129814 A CN 111129814A CN 202010026375 A CN202010026375 A CN 202010026375A CN 111129814 A CN111129814 A CN 111129814A
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- elastic
- elastic thimble
- tube body
- thimble
- tube
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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
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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
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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
- H01R13/04—Pins or blades for co-operation with sockets
- H01R13/05—Resilient pins or blades
- H01R13/052—Resilient pins or blades co-operating with sockets having a circular transverse section
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Abstract
The invention discloses an elastic thimble and a coaxial connector with high reliability, wherein the elastic thimble with high reliability is of a one-piece structure and comprises a hollow tube body, a contact part and a pin part which are integrally connected to the upper end and the lower end of the tube body in a distributed mode, a plurality of first hollowed holes penetrating through an inner cavity are formed in the tube body along the outer side surface of the tube body inwards, a spring structure is formed among the first hollowed holes, and the tube body can be telescopically deformed and rebound in the axial direction through the spring structure. The coaxial connector includes: the elastic thimble is of a one-piece structure and comprises a hollow pipe body, a contact part and a pin part which are integrally connected to the upper end and the lower end of the pipe body in a distributed mode, a plurality of first hollowed holes penetrating through the inner cavity are formed in the pipe body inwards along the outer side face of the pipe body, a spring structure is formed among the first hollowed holes, and the pipe body can be telescopically deformed and rebound in the axial direction through the spring structure; the insulator is sleeved on the periphery of the elastic thimble; and the cylindrical shell is arranged on the periphery of the insulator and is coaxially arranged with the elastic thimble.
Description
The technical field is as follows:
the invention relates to the technical field of connector products, in particular to an elastic thimble and a coaxial connector with high reliability.
Background art:
the main matching fields of the connector comprise traffic, communication, network, IT, medical treatment, household appliances and the like, and the development of the connector technology is strongly dragged due to the rapid development of the product technical level and the rapid growth of the market in the matching fields. To date, connectors have been developed into products with various categories, various specifications, various structural styles, fine professional directions, obvious industrial characteristics, and standardized standard systems.
A coaxial connector in the prior art generally includes an elastic pin located at the center, an insulator mounted on the periphery of the elastic pin, and a shielding shell fixed on the periphery of the insulator, wherein the elastic pin and the shielding shell are designed coaxially. Referring to fig. 1, the elastic thimble 100 generally includes a needle tube 101, a needle 102 installed in the needle tube 101 and slidable along an inner wall of the needle tube 101, and a spring 103 disposed between the needle tube 101 and the needle 102, wherein the needle 102 protrudes out of an upper end of the needle tube 101 under an elastic force of the spring 103, and the needle tube 101 and the needle 102 have a certain fit clearance. The lower end surface of the needle head 102 is cut into an inclined surface, the lower spring 103 props against the inclined surface at the lower end of the needle head 102, the needle head 102 is contacted with the inner wall of the needle tube 101 (two points A and A' in figure 1) by the inclined component force generated by the propping of the spring against the inclined surface, namely, the two points are contacted, the force can be contacted very unstably along with the compression of the needle head or the environmental vibration, and the needle burning and the connection failure are caused.
① if the current is transmitted only, the current is transferred to the inner wall of the needle tube on the surface of the needle tube and then is transferred to the needle head through the contact area of the inner wall, so that the problem of the simple current is not too much, ② if the state is used for transmitting high-frequency signals, the signals are transmitted back and forth on the surface of the needle tube, and a signal transmission sharp corner is formed at the top end of the needle tube, thereby generating an antenna effect and seriously affecting the transmission quality of the high-frequency signals.
In addition, the elastic thimble in the prior art generally comprises three parts, namely a needle tube, a needle head and a spring, and is of a three-piece structure, so that the elastic thimble has the advantages of multiple parts, complex structure, high cost, complex manufacturing process and low assembly efficiency, and is not beneficial to improving the market competitiveness.
In view of the above, the present inventors propose the following.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provide an elastic thimble and a coaxial connector with high reliability.
In order to solve the technical problems, the invention adopts the following technical scheme: the elastic thimble with high reliability is of a one-piece structure and comprises a hollow tube body, a pin part and a contact part, wherein the pin part is integrally connected to the lower end of the tube body, the contact part is integrally connected to the upper end of the tube body, a plurality of first hollowed holes penetrating through an inner cavity are inwards formed in the outer side surface of the tube body, a spring structure is formed between the first hollowed holes, and the tube body can be telescopically deformed and rebounded in the axial direction through the spring structure.
Furthermore, in the above technical solution, the first hollow-out hole is oval, S-shaped, fish scale-shaped, diamond-shaped, wave-shaped, or crescent-shaped, and correspondingly, the spring structure is continuously oval, S-shaped, fish scale-shaped, diamond-shaped, wave-shaped, or crescent-shaped.
Furthermore, in the above technical scheme, the lower end of the tube body is further bent from outside to inside and from bottom to top to form an inner flanging sleeve for enhancing radial strength and limiting elastic downward-pressing stroke, the inner flanging sleeve is arranged in the inner cavity of the tube body and forms a gap with the inner wall of the tube body, and the lower end of the first bending part between the tube body and the inner flanging sleeve is flush with the lower end of the contact part.
Furthermore, among the above-mentioned technical scheme, the body lower extreme still is from inside to outside, from bottom to top bending type is formed with and is used for strengthening radial strength and the spacing flanging sleeve of elasticity stroke that pushes down, and this flanging sleeve is arranged in this body outside to and be formed with the clearance between the body outer wall, the second between this body and the flanging sleeve position lower extreme that bends flushes with the contact site lower extreme.
Furthermore, among the above-mentioned technical scheme, the body is still inserted from bottom to top and is equipped with the interior nestification that is used for reinforcing radial strength and elasticity to push down the stroke spacing, should interior nestification upper end be located the below of contact site to be formed with the body inner wall between gapped, the nested first leg embedding that forms of buckling from inside to outside of this interior nestification between the pin portion, and the terminal surface flushes under this first leg and the pin portion.
Furthermore, among the above-mentioned technical scheme, the outside cover of body still is equipped with and is used for strengthening radial strength and elasticity to push down the spacing outer nestification of stroke, is formed with the clearance between this outer nestification cover and the body outer wall, and the second leg embedding that this outer nestification cover from inside to outside bending type becomes is in clearance between the pin portion, and terminal surface and pin portion down end flush under this second leg.
Furthermore, in the above technical scheme, the tube body is further inserted from bottom to top with an inner insulation support rod for enhancing radial strength and limiting elastic pressing stroke, the upper end of the inner insulation support rod is located below the contact portion and forms a gap with the inner wall of the tube body, and the lower end face of the inner insulation support rod is flush with the lower end face of the pin portion.
Further, among the above-mentioned technical scheme, the outside still cover of body is equipped with and is used for strengthening radial strength and elasticity to push down the spacing outer insulating bush of stroke, is formed with the clearance between this outer insulating bush inner wall and the body outer wall, and this outer insulating bush lower extreme supports and leans on in pin portion up end.
A coaxial connector, comprising: the elastic thimble is of a one-piece structure and comprises a hollow pipe body, a pin part and a contact part, wherein the pin part is integrally connected to the lower end of the pipe body, the contact part is integrally connected to the upper end of the pipe body, the pipe body is inwards provided with a plurality of first hollowed holes penetrating through the inner cavity along the outer side surface of the pipe body, a spring structure is formed between the first hollowed holes, and the pipe body can be telescopically deformed and rebounded in the axial direction through the spring structure; the insulator is sleeved on the periphery of the elastic thimble; and the cylindrical shell is arranged on the periphery of the insulator and is coaxially arranged with the elastic thimble.
Furthermore, in the above technical solution, the cylindrical shell is provided with a plurality of second hollow holes penetrating through the inner cavity inwards along the outer side surface thereof, and a multi-layer elastic structure is formed between the second hollow holes, and the cylindrical shell can be deformed in an axial direction by stretching through the multi-layer elastic structure, so that the upper end of the cylindrical shell and the upper end of the elastic thimble are in elastic contact with the PCB board with a multi-directional tolerance.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: the elastic thimble is provided with a plurality of first hollowed holes penetrating through the inner cavity in the middle to form a spring structure, the spring structure replaces a spring of a conventional elastic thimble, so that the elastic thimble has axial compression and rebound capacity, and the contact part at the upper end of the elastic thimble is used as a needle head of the spring structure, namely, the elastic thimble is of a one-piece structure and is only one part. In addition, the elastic thimble is integrally formed, namely in a one-piece structure, so that the contact part of the elastic thimble has vertical positive force no matter the contact part of the elastic thimble is in a compression state or an environmental vibration state, thereby achieving good contact, ensuring the electrical conduction quality and avoiding the phenomena of needle burning and connection failure; and because the elastic thimble is a one-piece structure, no matter which part the elastic thimble is axially compressed to, the signal is directly transmitted through the surface of the elastic thimble and conducts the current and the signal through the shortest distance, and the antenna effect cannot be generated, so that the high reliability of transmission is ensured, and the invention has strong market competitiveness.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a flexible thimble in the prior art;
FIG. 2 is a perspective view of a first configuration of the flexible spike of the present invention;
FIG. 3 is a cross-sectional view of a first configuration of a flexible spike of the present invention;
FIG. 4 is an expanded view of a first configuration of the flexible spike of the present invention;
FIG. 5 is a cross-sectional view of a second configuration of the flexible spike of the present invention;
FIG. 6 is a cross-sectional view of a third configuration of the flexible spike of the present invention;
FIG. 7 is a cross-sectional view of a fourth configuration of the flexible spike of the present invention;
FIG. 8 is a bottom view of a fourth configuration of the flexible spike of the present invention;
FIG. 9 is a cross-sectional view of a fifth configuration of a flexible spike of the present invention;
FIG. 10 is a bottom view of a fifth configuration of a flexible spike of the present invention;
FIG. 11 is a cross-sectional view of a sixth configuration of a flexible spike of the present invention;
FIG. 12 is a cross-sectional view of a seventh construction of a flexible spike of the present invention;
FIG. 13 is an expanded view of an eighth configuration of the flexible spike of the present invention;
FIG. 14 is an expanded view of a ninth configuration of the flexible spike of the present invention;
FIG. 15 is an expanded view of a tenth configuration of the flexible spike of the present invention;
FIG. 16 is a view of a first state of use of the flexible spike of the present invention;
FIG. 17 is a view of a second state of use of the flexible spike of the present invention;
FIG. 18 is a view of a third state of use of the flexible spike of the present invention;
FIG. 19 is a fourth state of use view of the flexible spike of the present invention;
FIG. 20 is an expanded view of an eleventh configuration of the flexible spike of the present invention;
fig. 21 is a structural view of the coaxial connector of the present invention.
The specific implementation mode is as follows:
the invention is further illustrated below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1-20, the elastic thimble 1 is a one-piece structure, and includes a hollow tube 11, a pin portion 12 integrally connected to a lower end of the tube 11, and a contact portion 13 integrally connected to an upper end of the tube 11, where the pin portion 12 is used for being welded and fixed to a PCB and forming an electrical conduction, the tube 11 is inwardly provided with a plurality of first hollow holes 111 penetrating through an inner cavity along an outer side surface thereof, and a spring structure 112 is formed between the first hollow holes 111, and the tube 11 can be deformed and rebounded in an axial direction by the spring structure 112. In the invention, the elastic thimble is provided with a plurality of first hollowed holes 111 penetrating through the inner cavity in the middle part to form a spring structure 112, the spring structure 112 replaces a spring of a conventional elastic thimble, so that the elastic thimble has axial compression and rebound capacity, and the contact part 13 at the upper end of the elastic thimble is used as a needle head of the spring structure 112, namely, the elastic thimble is of a one-piece structure and is only one part. In addition, the elastic thimble is integrally formed, namely in a one-piece structure, so that the contact part of the elastic thimble has vertical positive force no matter the contact part of the elastic thimble is in a compression state or an environmental vibration state, thereby achieving good contact, ensuring the electrical conduction quality and avoiding the phenomena of needle burning and connection failure; and because the elastic thimble is a one-piece structure, no matter which part the elastic thimble is axially compressed to, the signal is directly transmitted through the surface of the elastic thimble and conducts the current and the signal through the shortest distance, and the antenna effect cannot be generated, so that the high reliability of transmission is ensured, and the invention has strong market competitiveness.
The first hollow-out holes 111 are oval (see fig. 2-4 and 13), or S-shaped (see fig. 14), or fish scale-shaped, or diamond-shaped (see fig. 15), or wave-shaped, or crescent-shaped, and correspondingly, the spring structure 112 is continuously oval, or continuously S-shaped, or continuously fish scale-shaped, or continuously diamond-shaped, or continuously wave-shaped, or continuously crescent-shaped.
In order to ensure the radial strength and the elastic pressing stroke limit of the elastic thimble, the following modes are designed:
the first mode is as follows: as shown in fig. 5, the lower end of the tube 11 is further bent from outside to inside and from bottom to top to form an inner flanging sleeve 14 for enhancing radial strength and limiting elastic downward-pressing stroke, the inner flanging sleeve 14 is disposed in the inner cavity of the tube 11 and forms a gap with the inner wall of the tube 11, and the lower end of the first bending portion between the tube 11 and the inner flanging sleeve 14 is flush with the lower end of the contact portion 13. This inner flanging cover 14 upper end still extends first fretwork hole 111 top, and should exceed spring structure 112, has guaranteed that contact site 13 can effectively slide and have fine support intensity, and this inner flanging cover 14 upper end is formed with the interval with contact site 13 up end, pushes down the stroke to contact site 13 and plays limiting displacement, even excessive pushing down also can not crush the elasticity thimble, guarantees product life.
The second mode is as follows: as shown in fig. 6, the lower end of the tube body 11 is further bent from inside to outside and from bottom to top to form a flanging sleeve 15 for enhancing radial strength and limiting elastic downward-pressing stroke, the flanging sleeve 15 is disposed outside the tube body 11 and forms a gap with the outer wall of the tube body 11, and the lower end of a second bending portion between the tube body 11 and the flanging sleeve 15 is flush with the lower end of the contact portion 13. This flanging sleeve 15 upper end still extends first fretwork hole 111 top, and should exceed spring structure 112, has guaranteed that contact site 13 can effectively slide and have fine support intensity, and this flanging sleeve 15 upper end is formed with the interval with contact site 13 up end, pushes down the stroke to contact site 13 and plays limiting displacement, even excessive pushing down also can not crush the elasticity thimble, guarantees product life.
The third mode is as follows: as shown in fig. 7-8, the pipe body 11 is further inserted from bottom to top with an inner nest 16 for enhancing radial strength and limiting elastic downward-pressing stroke, the upper end of the inner nest 16 is located below the contact portion and forms a gap with the inner wall of the pipe body 11, a first solder leg 161 formed by bending the inner nest 16 from inside to outside is embedded in the gap between the lead portions 12 and fastened to each other, and the lower end surface of the first solder leg 161 is flush with the lower end surface of the lead portion 12 to increase the welding surface. The upper end of the inner nest 16 also extends above the first hollow hole 111, and the spring structure 112 is exceeded, so that the contact part 13 can effectively slide and has good supporting strength, an interval is formed between the upper end of the inner nest 16 and the upper end face of the contact part 13, the downward pressing stroke of the contact part 13 is limited, the elastic thimble cannot be crushed even if the elastic thimble is excessively pressed, and the service life of a product is ensured.
The fourth mode is that: as shown in fig. 9 to 10, an outer sleeve 17 for enhancing radial strength and limiting elastic downward movement is further sleeved outside the tube 11, a gap is formed between the outer sleeve 17 and the outer wall of the tube 11, a second fillet 171 formed by bending the outer sleeve 17 from inside to outside is embedded in the gap between the lead portions 12 and fastened to each other, and the lower end surface of the second fillet 171 is flush with the lower end surface of the lead portion 12 to increase the welding surface. This outer embedded sleeve 17 upper end still extends first fretwork hole 111 top, and should exceed spring structure 112, has guaranteed that contact site 13 can effectively slide and have fine support intensity, and this outer embedded sleeve 17 upper end is formed with the interval with contact site 13 up end, pushes down the stroke to contact site 13 and plays limiting displacement, even excessive pushing down also can not crush the elasticity thimble, guarantees product life.
The fifth mode is as follows: as shown in fig. 11, the tube 11 is further inserted from bottom to top with an inner insulating support rod 18 for enhancing radial strength and limiting the elastic downward pressing stroke, the upper end of the inner insulating support rod 18 is located below the contact portion, and a gap is formed between the upper end of the inner insulating support rod 18 and the inner wall of the tube 11, so that the contact portion 13 can effectively slide and has good support strength, the lower end surface of the inner insulating support rod 18 is flush with the lower end surface of the pin portion 12, and a gap is formed between the upper end of the inner insulating support rod 18 and the upper end surface of the contact portion 13, so that the downward pressing stroke of the contact portion 13 is limited, the elastic thimble cannot be damaged even if the thimble is excessively pressed downward, and the service life of the product is.
The sixth mode: combine shown in fig. 12, body 11 outside still overlaps and is equipped with and is used for strengthening radial intensity and elasticity to push down spacing outer insulating sleeve 19 of stroke, be formed with the clearance between 19 inner walls of this outer insulating sleeve and the body 11 outer wall, guaranteed that contact site 13 can effectively slide and have fine support intensity, 19 lower extremes of this outer insulating sleeve support and lean on in 12 up end of pin portion, 19 upper ends of this outer insulating sleeve and 13 up end of contact site are formed with the interval, push down the stroke to contact site 13 and play limiting displacement, even excessive pushing down also can not crush the elasticity thimble, guarantee product life. The structure can be expanded to form a plurality of mounting holes 41 on a plastic seat 4, and then a plurality of elastic thimbles 1 are mounted in each mounting hole 41 to form a multi-combination array type elastic connection combination, as shown in fig. 19.
The elastic thimble 1 is formed by punching and stretching a metal column.
Alternatively, the elastic thimble 1 is formed by punching a metal plate and then rounding the metal plate, wherein the head end and the tail end of the metal plate are respectively provided with a dovetail groove 104 and a dovetail convex part 105, and the dovetail groove 104 and the dovetail convex part 105 are fixedly connected in a clamping manner. Specifically, when elasticity thimble 1 makes, the expansion material under the sheetmetal, dovetail 104 and forked tail convex part 105 have all been punched and formed to the both sides of first half and lower part, and the first half upper end of this sheetmetal still punch and form the disk that the middle part is outside outstanding, and this disk and sheetmetal first half upper end still integrative the connection, this sheetmetal middle part adopts to be formed with the first fretwork hole 111 of plural number, and the outside 90 degrees of buckling of this sheetmetal latter half lower extreme is with the shaping the pin portion, at last wrap the circle shaping with the sheetmetal, this dovetail 104 and forked tail convex part 103 block fixed connection form cylindric tubular structure, buckle the disk 90 degrees again in order to be fixed in the tubular structure upper end with regard as the contact site, finally form the elasticity thimble of one-piece structure.
The pin part of the elastic thimble 1 can be any one of the following structures:
the first method comprises the following steps: the lower end of the elastic thimble 1 is bent outwards by 90 degrees to form an outward flange, the outward flange is annular and is used as the pin part, the using state is shown in figures 1 and 16, the outward flange is welded and fixed on the first PCB 5 to form electric connection, and the contact part at the upper end of the elastic thimble 1 is in contact with the second PCB or the electronic product 6.
And the second method comprises the following steps: the lower end of the elastic thimble 1 is punched and bent 90 degrees outwards to form a plurality of bending legs, the bending legs are distributed annularly and serve as the pin parts, as shown in fig. 8 or 10, the bending legs are welded and fixed on the first PCB 5 to form electrical connection, and the contact part at the upper end of the elastic thimble 1 is in contact with the second PCB or the electronic product 6.
And the third is that: the lower end of the elastic thimble 1 is punched and formed with vertically distributed jack-type welding feet which are used as the pin parts, the using state is shown as figure 17, the elastic thimble 1 is inserted into the hole position of the first PCB 5 through the jack-type welding feet and is fixed and conducted through welding, and the upper end of the elastic thimble 1 is contacted with the second PCB or the electronic product 6;
and fourthly: the lower end of the elastic thimble 1 extends downwards and is bent outwards to form a jack-type bent leg, the usage state is as shown in fig. 18, the elastic thimble 1 is inserted into a hole of the first PCB 5 through the jack-type bent leg and is fixed and conducted by welding, the upper end of the elastic thimble 1 contacts with the second PCB or the electronic product 6, an outer insulating sleeve 19 is arranged on the periphery of the elastic thimble 1, and the outer insulating sleeve 19 is horizontally arranged on the upper end surface of the first PCB 5, so as to meet different usage requirements.
As shown in fig. 20, the elastic thimble 1 can control the installation height thereof, when the installation height of the elastic thimble 1 is the lowest, the tube 11 of the elastic thimble 1 is provided with a first hollow hole 111 penetrating through the inner cavity along the outer side surface thereof in the height direction thereof, and an elastic rib is formed, and if the first hollow hole 111 is elliptical, the elastic rib is also elliptical and has an elastic capability in the longitudinal direction, of course, the first hollow hole 111 may also be S-shaped, fish scale-shaped, diamond-shaped, wave-shaped, crescent-shaped, and the like.
In summary, in the present invention, the elastic thimble is provided with the plurality of first hollow holes 111 penetrating the inner cavity at the middle portion to form the spring structure 112, the spring structure 112 replaces a spring of a conventional elastic thimble, so that the elastic thimble has axial compression and rebound capabilities, and the contact portion 13 at the upper end of the elastic thimble is used as a needle of the spring structure 112, i.e. the elastic thimble is a one-piece structure and has only one part. In addition, the elastic thimble is integrally formed, namely in a one-piece structure, so that the contact part of the elastic thimble has vertical positive force no matter the contact part of the elastic thimble is in a compression state or an environmental vibration state, thereby achieving good contact, ensuring the electrical conduction quality and avoiding the phenomena of needle burning and connection failure; and because the elastic thimble is a one-piece structure, no matter which part the elastic thimble is axially compressed to, the signal is directly transmitted through the surface of the elastic thimble and conducts the current and the signal through the shortest distance, and the antenna effect cannot be generated, so that the high reliability of transmission is ensured, and the invention has strong market competitiveness.
The present invention is also a coaxial connector, as shown in fig. 21, including: at least one elastic thimble 1, the elastic thimble 1 is a one-piece structure, it includes hollow tube 11 and the pin part 12 that connects to the lower end of the tube 11 integrally and the contact part 13 that connects to the upper end of the tube 11 integrally, the tube 11 has a plurality of first hollow holes 111 that link up the cavity inwards along its outside, and form the spring structure 112 between the first hollow holes 111, the tube 11 can be expanded and deformed and rebounded in the axial direction through the spring structure 112; the insulator 2 is sleeved on the periphery of the elastic thimble 1; and a cylindrical shell 3 which is arranged on the periphery of the insulator 2 and is coaxial with the elastic thimble 1. In the invention, the elastic thimble is provided with a plurality of first hollowed holes 111 penetrating through the inner cavity in the middle part to form a spring structure 112, the spring structure 112 replaces a spring of a conventional elastic thimble, so that the elastic thimble has axial compression and rebound capacity, and the contact part 13 at the upper end of the elastic thimble is used as a needle head of the spring structure 112, namely, the elastic thimble is of a one-piece structure and is only one part. In addition, the elastic thimble is integrally formed, namely in a one-piece structure, so that the contact part of the elastic thimble has vertical positive force no matter the contact part of the elastic thimble is in a compression state or an environmental vibration state, thereby achieving good contact, ensuring the electrical conduction quality and avoiding the phenomena of needle burning and connection failure; and because the elastic thimble is a one-piece structure, no matter which part the elastic thimble is axially compressed to, the signal is directly transmitted through the surface of the elastic thimble and conducts the current and the signal through the shortest distance, and the antenna effect cannot be generated, so that the high reliability of transmission is ensured, and the invention has strong market competitiveness.
The cylindrical shell 3 is provided with a plurality of second hollowed holes 31 which penetrate through the inner cavity inwards along the outer side surface of the cylindrical shell, a multi-layer elastic structure 32 is formed between the second hollowed holes 31, and the cylindrical shell can be stretched and deformed in the axial direction through the multi-layer elastic structure 32, so that the upper end of the cylindrical shell 3 and the upper end of the elastic thimble 1 are in elastic contact with the PCB plate with multi-directional tolerance.
That is to say, the coaxial connector of the invention also has the function of multidirectional tolerance, namely when there is an installation error in the distance between two PCB boards, the cylindrical shell 3 and the elastic thimble 1 can both contract axially automatically, so as to ensure that the cylindrical shell 3 and the elastic thimble are pressed on the golden finger of the PCB board all the time and form stable contact, thus having good communication quality and strong market competitiveness.
The upper end of the cylindrical shell 3 is turned over outwards to form an outer shielding ring 33, the outer shielding ring 33 covers the second hollow hole 31, so that an axially deformable shielding space is formed inside the cylindrical shell 3, and the elastic thimble 1 arranged inside the cylindrical shell 3 can be ensured to be in stable communication, and external noise is prevented from entering to influence the elastic thimble 1 to transmit signals; or, the periphery of the cylindrical shell 3 is sleeved with an outer shielding cover, and the outer shielding cover covers the hollow hole, so that an axially deformable shielding space is formed inside the cylindrical shell 3, and the elastic thimble 1 arranged inside the cylindrical shell 3 can be ensured to be in stable communication, thereby preventing external noise from entering and influencing the transmission signal of the elastic thimble 1.
It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010026375.0A CN111129814A (en) | 2020-01-10 | 2020-01-10 | A highly reliable elastic thimble and coaxial connector |
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| CN202010026375.0A CN111129814A (en) | 2020-01-10 | 2020-01-10 | A highly reliable elastic thimble and coaxial connector |
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| CN111129814A true CN111129814A (en) | 2020-05-08 |
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| CN202010026375.0A Pending CN111129814A (en) | 2020-01-10 | 2020-01-10 | A highly reliable elastic thimble and coaxial connector |
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| CN111952802A (en) * | 2020-08-20 | 2020-11-17 | 东莞市林积为实业投资有限公司 | A floating radio frequency connector |
| CN112775630A (en) * | 2021-01-20 | 2021-05-11 | 深圳市华诚达精密工业有限公司 | Tubular heating body and method for manufacturing same |
| CN115921817A (en) * | 2022-12-21 | 2023-04-07 | 扬州市润建机械有限公司 | An easily replaceable mold |
| CN116131000A (en) * | 2022-11-24 | 2023-05-16 | 中航光电科技股份有限公司 | Connector elastic terminal and connector using same |
| CN116207533A (en) * | 2022-11-24 | 2023-06-02 | 中航光电科技股份有限公司 | Longitudinally telescopic elastic terminal and connector |
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| CN115921817A (en) * | 2022-12-21 | 2023-04-07 | 扬州市润建机械有限公司 | An easily replaceable mold |
| CN116268611A (en) * | 2023-04-10 | 2023-06-23 | 深圳市贝柳科技有限公司 | A heating sheet, a heating tube, a heating core and a manufacturing method of a heating core |
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