Cable connector

Abstract

The utility model discloses a cable connector, comprising a housing provided with an accommodating hole penetrating through the housing up and down; the plurality of conductive terminals comprise a plurality of signal terminals, the plurality of signal terminals are respectively fixed in the insulating part, the insulating part is accommodated in the accommodating hole and can move up and down relative to the accommodating hole, and the conductive terminals downwards extend out of the accommodating hole and are used for downwards abutting against the circuit board; the cable comprises a plurality of wires arranged side by side in the horizontal direction, the conductive terminals are directly or indirectly connected with the wires upwards, the change of the air range around the signal terminals before and after butt joint of the cable connector and the circuit board is reduced, the change of the characteristic impedance value of the signal terminals before and after butt joint is small, and signal loss caused by impedance mismatching is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable connector, especially to a cable connector for improving high frequency.

BACKGROUND

[0002] A cable connector is welded downward on a circuit board, which comprises a shell, an insulating piece, a plurality of conductive terminals and at least one cable, the shell has a receiving hole penetrating the shell along the up-down direction, the insulating piece is fixedly installed in the receiving hole and has a plurality of terminal holes penetrating the insulating piece along the up-down direction, a plurality of the conductive terminals arranged along a first direction include a plurality of signal terminals and a plurality of ground terminals, a plurality of the conductive terminals are correspondingly received in a plurality of the terminal holes, each of the conductive terminals protrudes downward out of the corresponding terminal hole to abut against the circuit board, and each of the conductive terminals is movable up and down in the corresponding terminal hole, a plurality of the conductive terminals and the insulating piece are collectively received in the receiving hole, the cable includes a plurality of wires arranged along the first direction, a plurality of the conductive terminals are correspondingly used to abut upward against a plurality of the wires, when the cable connector is installed downward on the circuit board, a plurality of the conductive terminals are displaced upward to contact a plurality of the wires, thereby realizing electrical connection between the cable connector and the circuit board.

[0003] However, when the cable connector is installed downward on the circuit board, a plurality of the conductive terminals are forced to be displaced upward, the lower end part of the conductive terminal originally protruding downward out of the terminal hole is received in the terminal hole due to upward displacement, and the upper end part of the conductive terminal is exposed due to upward displacement, so that the area of the terminal hole is increased, that is, the air gap between the conductive terminal and the terminal hole or around the insulating piece is large before and after the cable connector is connected to the circuit board, the range of air around before and after connection changes greatly, so that the characteristic impedance value of the signal terminal changes greatly (since impedance is proportional to inductance and inversely proportional to capacitance, and capacitance is positively correlated with dielectric constant, the dielectric constant of air and plastic is different, so the change of the range of air will inevitably affect the dielectric constant, and then affect the capacitance, and finally affect the characteristic impedance), which is not conducive to high-frequency signal transmission.

[0004] Therefore, it is necessary to design a new cable connector to overcome the above problems.

UTILITARY MODEL CONTENT

[0005] To solve the above problems of the prior art, the utility model discloses a kind of new cable connectors, by fixing multiple signal terminals in insulating piece, insulating piece is housed in accommodating hole and is set to be movable up and down relative to accommodating hole, to reduce the change of the air range around signal terminal before and after cable connector and circuit board are docked, so that the characteristic impedance value of signal terminal is little changed before and after docking, reduce the signal loss generated by impedance mismatch.

[0006] To achieve the above object, the utility model provides a kind of cable connector, comprising: a shell, the shell is equipped with the accommodating hole that is penetrated up and down the shell;Multiple conductive terminals, including multiple signal terminals, multiple signal terminals are fixed in insulating piece respectively, the insulating piece is housed in the accommodating hole and is movable up and down relative to the accommodating hole, the conductive terminal is downwardly protruding accommodating hole to be downwardly abutted circuit board;At least one cable, including multiple wires arranged side by side along horizontal direction, the conductive terminal is directly or indirectly connected to the wire upwards.

[0007] Further, the signal terminal is vertically extended structure, including the upper end portion that is exposed to the insulating piece to be upwardly abutted cable, the lower end portion that is exposed to the insulating piece to be downwardly abutted circuit board, the intermediate section vertically extending from upper end portion to lower end portion, the intermediate section is fixed by being covered by the insulating piece by injection molding.

[0008] Further, the horizontal cross section of the signal terminal at any position is circular, the intermediate section includes the first section connecting the upper end portion and the second section connecting the first section and the lower end portion, the diameter of the second section is equal to the diameter of the lower end portion and less than the diameter of the first section, and the diameter of the first section is equal to the diameter of the upper end portion.

[0009] Further, the shell is made of metal powder metallurgy, the insulating piece and the conductive terminal are one-to-one corresponding, the insulating piece has a main body and an outwardly extending portion, the main body extends in the up-down direction in a cylindrical shape, and the outwardly extending portion extends outwardly from one end of the main body, the outwardly extending portion is above the accommodating hole to stop the shell, preventing the insulating piece from excessive downward displacement.

[0010] Further, the multiple conductive terminals also include multiple ground terminals, the multiple signal terminals and the multiple ground terminals are arranged in a first direction, the first direction is perpendicular to the up-down direction, and at any same height, the horizontal cross-sectional area of the signal terminal is always greater than that of the ground terminal.

[0011] Further, the plurality of conductive terminals further include a plurality of ground terminals, the plurality of signal terminals and the plurality of ground terminals are arranged along a first direction, the first direction is perpendicular to the up-down direction, the plurality of conductive terminals are arranged one-to-one with the plurality of conductive lines, the cable further includes an insulating sheath covering the plurality of conductive lines, each of the plurality of conductive lines has a mating portion, the plurality of mating portions are arranged one-to-one with the plurality of conductive terminals and above the plurality of conductive terminals, the plurality of mating portions expose the insulating sheath to contact the plurality of conductive terminals; the cable connector further includes a metal sheet above the cable, the metal sheet has a plate body and a plurality of elastic bodies extending from one end of the plate body, the plate body is fixed to the insulating sheath, the plurality of elastic bodies are arranged one-to-one with the plurality of conductive lines and above the plurality of mating portions, the elastic bodies are used to directly or indirectly press the corresponding mating portions downward, when the plurality of conductive terminals are displaced upward, the plurality of mating portions are correspondingly displaced upward, and the plurality of elastic bodies are also displaced upward.

[0012] Further, the cable is provided with two, respectively a first cable and a second cable below the first cable, the plurality of conductive terminals are arranged in two rows in a second direction, the second direction is perpendicular to the first direction and the up-down direction, defining a row of the plurality of conductive terminals as a first row of conductive terminals for electrically connecting with the first cable, and the other row of the plurality of conductive terminals as a second row of conductive terminals for electrically connecting with the second cable, the metal sheet has two, the lower metal sheet is located between the first cable and the second cable along the up-down direction, the lower metal sheet further includes a plurality of first elastic arms and a plurality of second elastic arms extending upward from the plate body, the plurality of first elastic arms and the plurality of second elastic arms are alternately arranged in the first direction, the first elastic arms extend from the plate body toward the elastic bodies, the second elastic arms extend from the plate body away from the elastic bodies, and the plurality of first elastic arms and the plurality of second elastic arms both abut the insulating sheath of the first cable upward.

[0013] Further, the plurality of mating portions include signal mating portions in contact with the signal terminals and ground mating portions in contact with the ground terminals, the cable connector further includes an insulating film, the insulating film has a base and a plurality of notches penetrating through the base in the up-down direction, the base covers the signal mating portions downward, the plurality of notches are arranged one-to-one with the plurality of ground mating portions, the elastic bodies enter the notches to directly press the ground mating portions downward, and the signal mating portions are indirectly pressed by the elastic bodies through the base.

[0014] Further, a grounding tab is included, the grounding tab has a body and a plurality of extension arms extending from the body towards the elastic body, the extension arms extend in a second direction opposite to the direction in which the elastic body extends, and the plurality of extension arms abut the elastic body located directly above the base from below, so that the elastic body of the grounding interface is pressed down and located directly below the gap between the extension arms.

[0015] The utility model also provides a cable connector, include: a shell, the shell is equipped with the receiving hole which passes through the shell up and down, a plurality of signal terminals are fixed in the insulating part respectively, the insulating part is received in the receiving hole and can move up and down relative to the receiving hole, the signal terminal is rigid in the up and down direction, and the signal terminal extends out of the receiving hole downward to abut against the circuit board downward, at least one cable includes a plurality of wires arranged side by side in the horizontal direction, wherein the signal terminal is indirectly connected to the wire through the conductive elastic body upward, or the conductive elastic body elastically presses the wire, and the wire presses the signal terminal.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] By fixing a plurality of signal terminals in the insulating part, the insulating part is arranged to be received in the receiving hole and can move up and down relative to the receiving hole, so that when the circuit board abuts against the lower end of the conductive terminal upward, the conductive terminal is forced to drive the insulating part to displace upward together, the signal terminal moves upward simultaneously with the insulating part during the docking process, so that the two are actually in a relatively static state, the range of contact with air of the signal terminal during the docking process with the circuit board changes relatively small, that is, the area of contact with air of the signal terminal changes relatively small before and after docking, the change of impedance value remains stable, which is beneficial to impedance matching, reduces signal loss during docking, and thus improves high frequency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective exploded view of the cable connector before docking with the circuit board of the utility model;

[0019] Figure 2 It is Figure 1 It is a perspective exploded view of the cable connector before docking with the circuit board of the utility model;

[0020] Figure 3 It is Figure 1 The cable connector hides Figure 2 The perspective exploded view of the remaining part elements of the cable connector is shown;

[0021] Figure 4 It is Figure 1 The cable connector hides Figure 2 ,Figure 3 perspective view of the remaining components after the removal of the elements of the cable connector;

[0022] Figure 5 is Figure 2 perspective view of the cable connector showing only four conductive terminals;

[0023] Figure 6 is Figure 1 perspective view of the cable connector after assembly;

[0024] Figure 7 is Figure 1 perspective view of the cable connector after assembly;

[0025] Figure 8 is Figure 1 partial top view of the cable connector showing only the first cable and the corresponding insulating film, the first metal sheet, the first grounding sheet and the corresponding plurality of conductive terminals in mating connection;

[0026] Figure 9 is Figure 6 cross-sectional view taken along a direction;

[0027] Figure 10 is Figure 1 cross-sectional view taken along a direction;

[0028] Figure 11 is Figure 1 schematic view of the second embodiment of the elastic body in the cable connector.

[0029] Explanation of reference numerals in the detailed description of the drawings:

[0030]

[0031]

DETAILED DESCRIPTION

[0032] In order to facilitate better understanding of the purpose, structure and features of the present application, the present application will be further described in conjunction with the drawings and specific embodiments.

[0033] For the sake of understanding, the present application defines a first direction (X), a second direction (Y) and an up-down direction (Z), which are perpendicular to each other.

[0034] As Figures 1 to 11As shown, the cable connector 100 of the utility model is installed on a circuit board 200.

[0035] As shown in the drawings, Figure 2 and Figure 7 The shell 1 is made of metal powder metallurgy, comprising a first mating surface 11, a second mating surface 12, a mounting surface 13 and a plurality of receiving holes 14, the first mating surface 11 and the second mating surface 12 extend longitudinally along a first direction X, the first mating surface 11 is located above the second mating surface 12, and the two are arranged staggered along a second direction Y, the mounting surface 13 is arranged facing the circuit board 200 and is located below the first mating surface 11 and the second mating surface 12, a plurality of the receiving holes 14 include a plurality of first receiving holes 14a and a plurality of second receiving holes 14b, the first receiving holes 14a penetrate the first mating surface 11 and the mounting surface 13 along the up-down direction Z, the second receiving holes 14b penetrate the second mating surface 12 and the mounting surface 13 along the up-down direction Z, and a plurality of the first receiving holes 14a and a plurality of the second receiving holes 14b are arranged along the first direction X and arranged in a row in the second direction Y.

[0036] As shown in the drawings, Figure 2 and Figure 5 A plurality of the conductive terminals 2 are arranged in two rows in the second direction Y, comprising a plurality of first conductive terminals 2a and a plurality of second conductive terminals 2b, a plurality of the first conductive terminals 2a are arranged as a first row of conductive terminals along the first direction X, a plurality of the second conductive terminals 2b are arranged as a second row of conductive terminals along the first direction X, each row of the conductive terminals arranged along the first direction X includes a plurality of signal terminals 2S and a plurality of ground terminals 2G. The height of the first conductive terminal 2a along the up-down direction Z is greater than the height of the second conductive terminal 2b, a plurality of the first conductive terminals 2a are correspondingly received in a plurality of the first receiving holes 14a, a plurality of the second conductive terminals 2b are correspondingly received in a plurality of the second receiving holes 14b, and each row of the conductive terminals 2 includes two adjacent signal terminals 2S as a differential signal pair, the differential signal pair is used to transmit high-speed signals, and each side of the differential signal pair has one ground terminal 2G.

[0037] As shown in the drawings, Figure 5 and Figure 7As shown, each of the conductive terminals 2 is rigid in the up-down direction Z, i.e. the conductive terminal 2 is not elastically deformable in the up-down direction Z, and the conductive terminal 2 is in a cylindrical structure, i.e. the horizontal cross section of the conductive terminal 2 at any position is circular. Each of the conductive terminals 2 comprises an upper end portion 21, a lower end portion 22, and a middle section 23 connecting the upper end portion 21 and the lower end portion 22, the upper end portion 21 is exposed upwardly to the insulating member 3 to be electrically connected to the cable 4, and the lower end portion 22 is exposed downwardly to the insulating member 3 to be electrically connected to the circuit board 200. The middle section 23 is covered and fixed to the insulating member 3, the middle section 23 comprises a first section 231 and a second section 232 connecting the first section 231, the first section 231 is connected to the upper end portion 21, the second section 232 is connected to the lower end portion 22, the diameter of the second section 232 is equal to the diameter of the lower end portion 22 and smaller than the diameter of the first section 231, and the diameter of the first section 231 is equal to the diameter of the upper end portion 21. At any same height, the horizontal cross-sectional area of the signal terminal 2S is always greater than the horizontal cross-sectional area of the ground terminal 2G.

[0038] As shown in Figure 2 and Figure 7 The insulating member 3 is integrally formed by a plastic material, each of the insulating members 3 comprises a main body 31 and an outwardly expanded portion 32 connecting the main body 31, the main body 31 is in a cylindrical structure extending in the up-down direction Z and is received in the corresponding receiving hole 14, and the outwardly expanded portion 32 is formed by extending outwardly from the upper end of the main body 31, the outwardly expanded portion 32 is exposed above the receiving hole 14 and downwardly abuts against the first or second abutting surface 11 or 12 to prevent the insulating member 3 from being excessively displaced downwardly.

[0039] As shown in Figure 2 and Figure 7 The plurality of insulating members 3 comprises a plurality of first insulating members 3a and a plurality of second insulating members 3b, and the plurality of first insulating members 3a and the plurality of second insulating members 3b are arranged in alignment in the first direction. The plurality of first insulating members 3a and the plurality of first conductive terminals 2a are arranged in one-to-one correspondence, each of the first conductive terminals 2a is fixed in the corresponding first insulating member 3a, and the first insulating member 3a is received in the corresponding first receiving hole 14a and is movable up and down relative to the first receiving hole 14a. The plurality of second insulating members 3b and the plurality of second conductive terminals 2b are arranged in one-to-one correspondence, each of the second conductive terminals 2b is fixed in the corresponding second insulating member 3b, and the second insulating member 3b is received in the corresponding second receiving hole 14b and is movable up and down relative to the second receiving hole 14b (see Figure 9 and Figure 10That is, each of the conductive terminals 2 is injection molded to the corresponding insulating member 3 to form a terminal module, and a plurality of the terminal modules are one-to-one received in a plurality of the receiving holes 14, and each of the terminal modules is movable up and down relative to the receiving hole 14. In other embodiments, the conductive terminals 2 can also be assembled and fixed in the insulating member 3 by interference fit to form a terminal module, and here the manner in which the conductive terminals 2 are fixed in the insulating member 3 is not limited as long as the conductive terminals 2 and the corresponding insulating member 3 are movable up and down relative to the receiving hole 14.

[0040] As shown in Figure 1 , the two cables 4 are arranged in the up-down direction Z, the cable 4 defined above is the first cable 4a, and the cable 4 defined below is the second cable 4b, the first cable 4a is used to be electrically connected with the first row of conductive terminals (a plurality of the first conductive terminals 2a), and the second cable 4b is used to be electrically connected with the second row of conductive terminals (a plurality of the second conductive terminals 2b).

[0041] As shown in Figure 3 and Figure 4 , the first cable 4a and the second cable 4b each include an insulating sheath 41 and a plurality of wires 42. The plurality of wires 42 of the first cable 4a are arranged one-to-one with the plurality of first conductive terminals 2a, and the insulating sheath 41 of the first cable 4a covers the corresponding plurality of wires 42, and the plurality of wires 42 of the second cable 4b are arranged one-to-one with the plurality of second conductive terminals 2b, and the insulating sheath 41 of the second cable 4b covers the corresponding plurality of wires 42. Each of the wires 42 has a connecting portion 421.

[0042] As shown in Figure 3 and Figure 7 , for the first cable 4a, the plurality of connecting portions 421 are arranged closer to the first conductive terminals 2a in the second direction Y relative to the insulating sheath 41, the plurality of connecting portions 421 are arranged one-to-one with the plurality of first conductive terminals 2a and located above the first conductive terminals 2a, and the plurality of connecting portions 421 expose the insulating sheath 41 to contact the plurality of first conductive terminals 2a.

[0043] As shown in Figure 4 and Figure 7As shown, for the second cable 4b, the multiple docking portions 421 are arranged closer to the second conductive terminal 2b relative to the insulating sheath 41 in the second direction Y, and the multiple docking portions 421 are arranged one-to-one with the multiple second conductive terminals 2b and are located above the second conductive terminals 2b. The multiple docking portions 421 expose the insulating sheath 41 to contact the multiple second conductive terminals 2b.

[0044] like Figure 3 、 Figure 4 and Figure 7 As shown, the multiple docking parts 421 of each of the first cable 4a and the second cable 4b include multiple signal docking parts 421a and multiple grounding docking parts 421b. The multiple signal docking parts 421a of the first cable 4a are in contact with the multiple signal terminals 2S of the first row of conductive terminals, and the multiple grounding docking parts 421b of the second cable 4b are in contact with the multiple grounding terminals 2G of the second row of conductive terminals.

[0045] like Figure 3 、 Figure 4 and Figure 7 As shown, each of the cables 4 is provided with an insulating film 5 corresponding thereto. The insulating film 5 is an insulating Mylar, located above the corresponding multiple docking parts 421, and adhered downwardly to the corresponding multiple signal docking parts 421a. Each of the insulating films 5 has a base 51 and multiple notches 52. The multiple notches 52 pass through the base 51 up and down. The base 51 extends longitudinally along the first direction X and covers the corresponding multiple signal docking parts 421a downward. The multiple notches 52 are arranged one-to-one with the multiple grounding docking parts 421b.

[0046] like Figure 3 and Figure 4 As shown, the two metal sheets 6 are made of a metal material, namely a first metal sheet 6a and a second metal sheet 6b, and the first metal sheet 6a and the second metal sheet 6b each have a plate body 61 and a plurality of elastic bodies 62 extending from the plate body 61. (In other embodiments, such as Figure 11As shown, the elastic body 62 can be independent and separated, and is not connected together through the plate body 61. The signal terminal 2S is indirectly connected to the wire 42 upward through the conductive elastic body 62.) The plate body 61 is fixed to the corresponding insulating sheath 41, and the multiple elastic bodies include multiple signal elastic bodies 62a and multiple grounding elastic bodies 62b. The multiple signal elastic bodies 62a and the multiple grounding elastic bodies 62b are all extended from one end of the plate body 61 in the second direction Y. Along the up and down direction Z, the multiple signal elastic bodies 62a are arranged in a one-to-one correspondence with the multiple signal docking parts 421a and are located above the multiple signal docking parts 421a, and the multiple grounding elastic bodies 62b are arranged in a one-to-one correspondence with the multiple grounding docking parts 421b and are located above the multiple grounding docking parts 421b (refer to Figure 7 ).

[0047] like Figure 7 As shown, the first metal sheet 6a and the second metal sheet 6b are spaced apart from each other in the upper and lower parts, and the metal sheet 6 on the upper part is defined as a first metal sheet 6a, and the metal sheet 6 on the lower part is defined as a second metal sheet 6b. The first metal sheet 6a is located above the first cable 4a and fixed to the first cable 4a, and the second metal sheet 6b is located between the first cable 4a and the second cable 4b. Specifically, the second metal sheet 6b is located above the second cable 4b and fixed to the second cable 4b.

[0048] like Figure 7 、 Figure 9 and Figure 10 As shown, the signal elastic body 62a is used to indirectly press down the signal docking part 421a, and the grounding elastic body 62b is used to directly press down the grounding docking part 421b. When the multiple conductive terminals 2 are displaced upward, the multiple grounding docking parts 421b and the multiple signal docking parts 421a are correspondingly displaced upward. At the same time, the multiple grounding elastic bodies 62b and the multiple signal elastic bodies 62a are also displaced upward. Specifically, each grounding elastic body 62b enters the corresponding notch 52 to directly press down the corresponding grounding docking part 421b, and each signal elastic body 62a indirectly presses down the corresponding signal docking part 421a through the base 51.

[0049] like Figure 4As shown, the second metal sheet 6b further comprises a plurality of first elastic arms 63 and a plurality of second elastic arms 64 extending upwardly from the plate body 61, the plurality of first elastic arms 63 are arranged in alignment along the first direction X, the plurality of second elastic arms 64 are arranged in alignment along the first direction X, the plurality of first elastic arms 63 and the plurality of second elastic arms 64 are arranged alternately along the first direction X, the first elastic arms 63 extend from the plate body 61 towards the elastic body 62, the second elastic arms 64 extend from the plate body 61 away from the elastic body 62, the plurality of first elastic arms 63 and the plurality of second elastic arms 64 all abut the insulating sheath 41 of the first cable 4a upwardly (refer to Figure 9 ).

[0050] As shown in Figure 3 and Figure 4 , the two ground sheets 7 are respectively a first ground sheet 7a and a second ground sheet 7b, each of the ground sheets 7 is made of metal material and extends longitudinally along the first direction X, the first ground sheet 7a and the second ground sheet 7b have a body 71 and a plurality of extension arms 72. The plurality of extension arms 72 are formed from the body 71 towards the elastic body in the second direction Y, the plurality of extension arms 72 are arranged in alignment and spaced apart in the first direction X, the extension arms 72 extend in the second direction Y opposite to the extension direction of the elastic body.

[0051] As shown in Figure 7 and Figure 8 , the plurality of extension arms 72 are arranged one-to-one corresponding to the plurality of signal elastic bodies 62a located directly above the base 51, the plurality of extension arms 72 correspondingly abut downwardly the plurality of signal elastic bodies 62a located directly above the base 51, a gap is formed between two adjacent extension arms 72, and the ground elastic body 62b is located directly below the gap between the extension arms 72.

[0052] As shown in Figure 3 and Figure 4 , the first ground sheet 7a is clamped between the cover plate 8 and the shell 1. The body 71 of the first ground sheet 7a and the plate body 61 of the first metal sheet 6a are spaced apart in the second direction Y, and the body 71 of the first ground sheet 7a is arranged further away from the insulating sheath 41 of the first cable 4a than the plate body 61 of the first metal sheet 6a.

[0053] As shown in Figure 7As shown, the main body 71 of the first grounding plate 7a is fixed to the housing 1, and the main body 71 of the second grounding plate 7b is spaced apart from the plate 61 of the second metal plate 6b in the second direction Y. The main body 71 of the second grounding plate 7b is arranged farther away from the insulating sheath 41 of the second cable 4b relative to the plate 61 of the second metal plate 6b. The second grounding plate 7b is located below the first grounding plate 7a and between the first docking surface 11 and the second docking surface 12.

[0054] like Figure 9 As shown, the cover plate 8 is disposed above the first grounding plate 7a and the first metal plate 6a.

[0055] The cable connector of the present invention also has the following beneficial effects:

[0056] 1. By fixing the plurality of signal terminals 2S in the insulating member 3, the insulating member 3 is configured to be received in the receiving hole 14 and movable up and down relative to the receiving hole 14, so that when the circuit board 200 is moved upwardly against the lower end of the conductive terminal 2, the conductive terminal 2 is forced to move the insulating member 3 upward together. During the docking process, the signal terminals 2S move upward simultaneously with the insulating member 3, so the two are actually in a relatively static state. During the docking process of the signal terminals 2S and the circuit board 200, the range of contact with the air changes relatively little. That is, before and after docking, the area of ​​contact between the signal terminals 2S and the air changes relatively little, and the change in impedance value remains stable, which is conducive to impedance matching, reduces signal loss during the docking process, and thus improves high frequency.

[0057] 2. The signal terminal 2S has a vertically extending structure. Compared with a laterally extending elastic arm structure, the area of ​​the former exposed to the air is smaller than that of the latter. Therefore, when the latter is elastically deformed under force, the range of contact with the air is significantly different from that of the former. The intermediate section 23 is covered and fixed by the insulating member 3 through injection molding, so that there is no air gap between the intermediate section 23 and the insulating member 3.

[0058] 3. By setting the outward expansion portion 32 at one end of the insulating member 3, the outward expansion portion 32 is set above the receiving hole. The outward expansion portion 32 extends outward from one end of the main body 31 to block the housing 1 downward, thereby preventing the insulating member 3 from excessively displacing downward.

[0059] 4. Since the cable in the cable connector 100 has a shielding layer, the horizontal cross-sectional area of ​​the signal terminal 2S is always larger than the horizontal cross-sectional area of ​​the ground terminal 2G, that is, the overall horizontal size of the ground terminal 2G is smaller than the size of the signal terminal 2S (the ground terminal 2G only needs to be able to be grounded), thereby reducing the material of the ground terminal 2G and avoiding waste.

[0060] 5. The notch 52 is provided in the insulating film 5 to make room for the grounding elastic body 62b, thereby facilitating the grounding elastic body 62b to be directly connected downward to the grounding docking portion 421b.

[0061] The above detailed description is only an illustration of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and illustrations of this invention are included in the patent scope of this invention.

Claims

1. A cable connector, characterized by, The cable connector comprises: a housing provided with a receiving hole extending through the housing from top to bottom; a plurality of conductive terminals including a plurality of signal terminals, the signal terminals are respectively fixed in insulating members, the insulating members are received in the receiving hole and movable up and down relative to the receiving hole, the conductive terminals extend downward out of the receiving hole to abut against a circuit board downward; at least one cable including a plurality of wires arranged side by side in a horizontal direction, the conductive terminals are connected to the wires upward directly or indirectly.

2. The cable connector of claim 1, wherein: The signal terminals are vertically extended structures including upper end portions exposed upward of the insulating members to abut against the cable upward, lower end portions exposed downward of the insulating members to abut against the circuit board downward, and intermediate sections vertically extended downward from the upper end portions to the lower end portions, the intermediate sections are fixed by the insulating members through injection molding.

3. The cable connector of claim 2, wherein: The horizontal cross section of the signal terminals at any position is circular, the intermediate sections include first sections connected to the upper end portions and second sections connected to the first sections and the lower end portions, the diameter of the second sections is equal to the diameter of the lower end portions and smaller than the diameter of the first sections, the diameter of the first sections is equal to the diameter of the upper end portions.

4. The cable connector of claim 1, wherein: The housing is made of metal powder metallurgy, the insulating members are provided one by one corresponding to the conductive terminals, the insulating members have a main body extending in a vertical direction in a cylindrical shape and an outwardly extending portion formed from one end of the main body, the outwardly extending portion is located above the receiving hole to stop the housing and prevent the insulating members from excessive downward displacement.

5. The cable connector of claim 1, wherein: The plurality of conductive terminals further include a plurality of ground terminals, the signal terminals and the ground terminals are arranged in a first direction, the first direction is perpendicular to the vertical direction, at any same height, the horizontal cross-sectional area of the signal terminals is always larger than that of the ground terminals.

6. The cable connector of claim 1, wherein: The plurality of conductive terminals further include a plurality of ground terminals, the signal terminals and the ground terminals are arranged in a first direction, the first direction is perpendicular to the vertical direction, the plurality of conductive terminals are provided one by one corresponding to the plurality of wires, the cable further includes an insulating sheath covering the plurality of wires, each wire has a mating portion, the plurality of mating portions are provided one by one corresponding to the plurality of conductive terminals and located above the conductive terminals, the plurality of mating portions expose the insulating sheath to contact the plurality of conductive terminals; the cable connector further includes a metal sheet located above the cable, the metal sheet has a plate body and a plurality of elastic bodies extending from one end of the plate body, the plate body is fixed to the insulating sheath, the plurality of elastic bodies are provided one by one corresponding to the plurality of wires and located above the mating portions, the elastic bodies are used to press the corresponding mating portions downward directly or indirectly, when the plurality of conductive terminals are displaced upward, the plurality of mating portions are correspondingly displaced upward, and the plurality of elastic bodies are also displaced upward.

7. The cable connector of claim 6, wherein: The cable is provided with two, a first cable and a second cable located below the first cable, a plurality of the conductive terminals are arranged in two rows in a second direction, the second direction is perpendicular to the first direction and the up-down direction, defining a row of the conductive terminals as the first row of conductive terminals for electrical connection with the first cable, and the other row of the conductive terminals as the second row of conductive terminals for electrical connection with the second cable, the metal sheet has two up and down, the lower metal sheet is located between the first cable and the second cable in the up-down direction, the lower metal sheet further comprises a plurality of first elastic arms and a plurality of second elastic arms extending upward from the plate body, a plurality of the first elastic arms and a plurality of the second elastic arms are alternately arranged in the first direction, the first elastic arm is formed by extending from the plate body towards the elastic body, the second elastic arm is formed by extending from the plate body away from the elastic body, a plurality of the first elastic arms and a plurality of the second elastic arms all abut upward the insulating sheath of the first cable.

8. The cable connector of claim 6, wherein: The plurality of the docking portions includes signal docking portions in contact with signal terminals and ground docking portions in contact with ground terminals, and the cable connector further includes an insulating film having a base and a plurality of notches penetrating through the base in the up-down direction, the base covers the signal docking portions downward, and the plurality of the notches are arranged one-to-one with the plurality of the ground docking portions, the elastic body directly presses the ground docking portions downward by entering the notches, and the signal docking portions are indirectly pressed downward by the elastic body through the base.

9. The cable connector of claim 8, wherein: Further comprising a ground sheet having a body and a plurality of extension arms extending from the body towards the elastic body, the extension arms extend in the opposite direction of the elastic body in the second direction, and the plurality of the extension arms abut downward the elastic body located directly above the base, and the elastic body pressing the ground docking portions is located directly below the gap between the extension arms.

10. A cable connector, characterized by, Comprise: A housing provided with a receiving hole penetrating through the housing in the up-down direction; A plurality of signal terminals fixed in the insulating member, the insulating member is received in the receiving hole and can move up and down relative to the receiving hole, the signal terminal is rigid in the up-down direction, and the signal terminal extends out of the receiving hole downward to abut the circuit board downward; At least one cable comprising a plurality of wires arranged side by side in the horizontal direction; The signal terminal indirectly connects the wire through the conductive elastic body upward, or the conductive elastic body elastically presses the wire, and the wire presses the signal terminal.

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