Bent differential contact and assembling method thereof

Abstract

The invention provides a bent differential contact and an assembly method thereof, the bent differential contact comprises a shell and a bent differential inner conductor arranged in the shell, the bent differential inner conductor comprises a horizontal section conductor, a vertical section conductor and a bent transition section conductor connected between the horizontal section conductor and the vertical section conductor; an isolation insulator used for supporting the bent transition section conductor is arranged in the shell, and the bent transition section conductor is embedded in the isolation insulator. According to the invention, the isolation insulator is arranged at the bending transition section conductor of the bending type differential inner conductor, so that the insulation effect is improved, the isolation insulator also plays a role in supporting the bending transition section conductor, and the horizontal section conductor is prevented from being subjected to backward insertion force when the bending type differential contact is inserted oppositely; therefore, the problem that the pin is damaged due to the fact that the bending section and the vertical section are bent under stress can be solved, and the damage of the bending type differential inner conductor can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a differential contact piece. Background Art

[0002] Pin contacts are also called pin parts, which are electrical connectors. The main function of pin contacts is to achieve circuit connection by cooperating with socket contacts. They are easy to install, reusable, reliable in contact, and have stable electrical performance. Differential contacts refer to conductive parts in components that cooperate with corresponding conductive parts to provide electrical paths. Differential contacts play a key role in electrical systems to ensure stable signal transmission.

[0003] Bent differential contacts, that is, differential contacts with bent pins, are mainly used to achieve electrical interconnection with vertical printed circuit boards. In order to achieve a 90° transfer between the internal conductor pin and the terminal, the commonly used solution for the bent differential contacts in the prior art is to set a U-shaped groove at the upper end of the terminal and a tail round rod at the tail of the pin. And a small round hole that can be loaded into the back cover is set at the rear end of the shell. During the assembly process, the pins are first installed into the interior of the shell in sequence, and the welding part of the pin, that is, the rear end of the tail round rod, is exposed to a position visible from the small round hole of the shell. After the pin is assembled in place, the U-shaped groove of the terminal is inserted into the shell from the rear bottom of the shell with the U-shaped groove facing upwards, and the U-shaped groove at the upper end of the terminal and the rear end of the tail round rod are inserted into place, and then a manual electric soldering iron is used to pass through the small round hole at the rear of the shell to weld the U-shaped groove and the tail round rod. After welding is completed, the back cover is finally installed at the rear end of the shell.

[0004] Although the above scheme realizes the basic functions, it has the following disadvantages: Due to the limitation of this structure, the 90° transition of the conductor is achieved by tin welding, and the welding is performed by inserting the conductor into a small round hole, which is not only difficult to operate but also has poor workmanship; and this welding method has the risk of "cold soldering", resulting in low reliability of the bent pin contact.

[0005] The Chinese invention patent with the publication date of 2019.09.06 and the publication number of CN 110212345 A discloses a differential connector and a mounting structure of a curved contact. The differential connector includes an outer conductor and a center conductor arranged in the outer conductor, the center conductor is a curved contact, the center conductor includes a horizontal segment conductor and a vertical segment conductor, the outer conductor is provided with a horizontal installation cavity corresponding to the horizontal segment conductor and a vertical installation cavity corresponding to the vertical segment conductor, the horizontal segment conductor and the vertical segment conductor are an integrated structure; the outer wall of the vertical installation cavity is provided with a side away from the horizontal installation cavity to avoid the horizontal segment conductor and the vertical segment conductor so that the center conductor enters the outer conductor along the axis direction of the horizontal installation cavity, or the outer wall of the horizontal installation cavity is provided with a side away from the vertical installation cavity to avoid the horizontal segment conductor and the vertical segment conductor so that the center conductor enters the outer conductor along the axis direction of the vertical installation cavity.

[0006] However, when the connector in this invention patent is plugged in, the horizontal section of the conductor is subjected to the backward plugging force and may move backward, causing the curved section and the vertical section to bend under force, which may damage the pins and is difficult to reset once damaged. Summary of the invention

[0007] In view of the above-mentioned technical problems, the present invention proposes a bent differential contact and an assembly method thereof, which are used to solve the problem in the prior art that when the differential connector is plugged in, the horizontal section conductor is subjected to a backward plugging force, which may cause the curved section and the vertical section to bend under force and damage the pin.

[0008] In order to achieve the above object, the technical solution of the present invention is achieved as follows: A bent differential contact piece includes a shell and a bent differential inner conductor arranged in the shell, wherein the bent differential inner conductor includes a horizontal segment conductor, a vertical segment conductor and a bent transition segment conductor connected between the horizontal segment conductor and the vertical segment conductor; an isolation insulator for supporting the bent transition segment conductor is arranged in the shell, and the bent transition segment conductor is embedded in the isolation insulator. The present invention not only improves the insulation effect by arranging an isolation insulator at the bent transition segment conductor of the bent differential inner conductor, but also the isolation insulator supports the bent transition segment conductor, thereby avoiding the problem that when the bent differential contact piece is plugged in, the horizontal segment conductor is subjected to a backward plugging force, which may cause the bent segment and the vertical segment to bend due to force, thereby damaging the plug pin, thereby avoiding damage to the bent differential inner conductor; and the bent differential inner conductor is embedded in the isolation insulator, so that the isolation insulator isolates the bent differential inner conductor, thereby reducing crosstalk between the differential conductors.

[0009] Furthermore, in order to isolate different differential pairs and prevent crosstalk between differential pairs, a plurality of bent differential inner conductors are provided in the housing, and the plurality of bent differential inner conductors form at least two groups of differential pairs; and spacer ribs are provided in the isolation insulator to isolate adjacent differential pairs.

[0010] Furthermore, in order to limit the positioning of the bent differential inner conductor in multiple directions and prevent the bent differential contact from being subjected to a backward insertion force, which may cause the bent section and the vertical section to bend due to force and thus damage the pin, an isolation groove for accommodating the bent transition section conductor is provided in the isolation insulator, and the spacing ribs are used to separate adjacent isolation grooves. Each isolation groove cooperates with a group of differential pairs, and the front end and the bottom side of the isolation groove are open so that the bent transition section conductor can be embedded in the isolation groove from the bottom or front side of the isolation groove.

[0011] Furthermore, in order to improve the insulation and support effects on the horizontal segment conductor and to improve the support effect of the isolation insulator on the entire curved differential inner conductor, a front insulator is sleeved on the horizontal segment conductor, and the front end of the isolation insulator and the rear end of the front insulator are matched in the front-to-back direction.

[0012] Furthermore, in order to improve the insulation and support effects on the vertical segment conductor, a rear insulator is sleeved on the vertical segment conductor, and the front insulator and the rear insulator are respectively provided with through holes for the bent differential inner conductor to pass through; and the outer side of the rear insulator is provided with a plurality of ridges that are strongly fitted with the outer shell.

[0013] Furthermore, not only to facilitate the closure of the rear end of the shell, but also to provide better support for the isolation insulator and the front insulator at the front end of the isolation insulator and the bent differential inner conductor, thereby improving the structural strength of the product, the rear end of the shell is slidably connected with a rear cover, and the rear end of the isolation insulator cooperates with the rear cover in the front-to-back direction.

[0014] Furthermore, in order to enable the back cover to provide better support for the isolation insulator and prevent the isolation insulator from deflecting, and at the same time, the back cover also provides better limiting effect on the rear isolation insulator, the upper part of the back cover is provided with a concave portion protruding toward the isolation insulator, the concave portion is provided with a plane abutting against the rear side of the isolation insulator, and the plane presses the isolation insulator against the front insulator; a back cover step surface is formed between the lower side of the concave portion and the lower part of the back cover, and the back cover step surface cooperates with the upper side surface of the rear insulator in the upper and lower directions.

[0015] Furthermore, in order to make it easier for the back cover to be slidably connected to the outer shell, and to make the connection between the back cover and the outer shell more stable and tight, and at the same time to assist in the installation and removal of the back cover, outer shell grooves are provided on both sides of the middle and lower parts of the rear end of the outer shell, and the two side surfaces of the middle and lower parts of the back cover are interference fit with the outer shell grooves; the lower side of the concave part forms an upward lower outer step surface on the outer side of the back cover to help push the back cover into the outer shell groove; the upper side of the concave part forms a downward upper outer step surface on the outer side of the back cover to assist in the removal of the back cover.

[0016] Furthermore, in order to facilitate the arrangement of the bent differential inner conductors into several differential pairs in the outer shell, and to enable the isolation insulator to also limit the horizontal segment conductors, the bent differential inner conductors include long bent inner conductors and short bent inner conductors, and a long bent inner conductor and a short bent inner conductor constitute a differential pair; the horizontal segment conductors of the long bent inner conductor and / or the short bent inner conductor are provided with inner conductor step surfaces extending radially outward, and the inner conductor step surfaces cooperate with the front end of the isolation insulator to limit the position in the front-to-back direction.

[0017] Furthermore, the method for assembling the bent differential contact as described in any one of the above items comprises the following steps: S1. Insert the horizontal segment conductors of each bent differential inner conductor into the front insulator, and make the long bent inner conductor and the short bent inner conductor form a differential pair; S2, then install the horizontal segment conductor of the bent differential inner conductor in step S1 together with the front insulator into the housing facing forward, and make the vertical segment conductor of the bent differential inner conductor face downward into the rear part of the housing; S3, inserting the rear insulator onto the vertical segment conductor of the bent differential inner conductor from the bottom; S4, installing the isolation insulator into the housing from the rear of the housing, and embedding each differential pair into each isolation slot of the isolation insulator; S5. Assemble the rear cover from top to bottom and insert it into the housing slide groove at the rear of the housing, or fix the rear cover and the housing by gluing or soldering.

[0018] Beneficial effects of the present invention: 1. The present invention not only improves the insulation effect but also reduces the crosstalk between differential pairs by respectively arranging a front insulator and a rear insulator at the front and lower parts of the bent differential inner conductor and arranging an isolation insulator at the bending part of the bent pin; 2. The isolation insulator of the present invention also supports the curved transition section conductor, so as to avoid the problem that when the curved differential contact piece is plugged in, the horizontal section conductor is subjected to a backward plugging force, which may cause the curved section and the vertical section to bend due to force, thereby damaging the pin, thereby avoiding damage to the inner conductor of the curved differential; 3. The present invention has a rear cover slidably connected to the rear end of the shell, so that the rear cover can be conveniently assembled on the shell, which simplifies the structure and is convenient for closure; 4. The isolation insulator of the present invention can be pressed on the front insulator to fix the front insulator in the housing, and then the rear cover presses the isolation insulator tightly, so that the pins and the insulator are stably installed in place, and the structural strength of the product is improved; 5. The present invention provides an inner conductor step surface extending radially outward on the bent differential inner conductor, so that the isolation insulator can be pressed on the inner conductor step surface, further limiting the bent differential inner conductor, improving the protection of the bent differential inner conductor, and avoiding damage to the bent differential inner conductor; 6. The present invention avoids the need for 90° transfer welding of the conductor by providing an integrally bent long-bend inner conductor and a short-bend inner conductor, thereby avoiding the problems of difficult welding operation and poor processability, and also avoiding the risk of "cold welding" caused by welding, thereby improving the reliability of the pin contact; 7. The present invention fully opens the rear end of the shell and the bottom of the rear end of the shell, so that the long pin and the short pin bent at 90 degrees can be directly inserted into the shell from the rear end of the shell without hindrance, which not only simplifies assembly but also avoids welding; 6. The present invention transmits different differential signals through a plurality of differential pairs, and the signals cannot be conducted to each other and do not crosstalk with each other, thereby improving the signal transmission function of the pin contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of a top view and cross-section structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 5 It is a schematic diagram of the structure of the internal components of the present invention; Figure 6 It is a schematic structural diagram of the housing of the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the housing of the present invention; Figure 8 It is a schematic diagram of the top view of the housing of the present invention; Fig. 9 It is a schematic side view of the structure of the housing of the present invention; Fig.10 It is a schematic structural diagram of the front insulator of the present invention; Fig.11 is a schematic cross-sectional structural diagram of a front insulator of the present invention; Fig.12 It is a schematic side view of the structure of the front insulator of the present invention; Fig.13 It is a schematic diagram of the structure of the long pin of the present invention; Fig.14 It is a schematic diagram of the structure of the short pin of the present invention; Fig.15 It is a structural schematic diagram of the isolation insulator of the present invention; Fig.16 It is a schematic diagram of the main structure of the isolation insulator of the present invention; Fig.17 is a schematic diagram of the cross-sectional structure of the isolation insulator of the present invention; Fig.18 for Fig.16 A schematic diagram of the right side structure of FIG. Fig.19 for Fig.16 A left side structural diagram of ; Fig. 20 It is a schematic structural diagram of a rear insulator of the present invention; Fig.21 It is a schematic diagram of the main structure of the rear insulator of the present invention; Fig. 22 It is a schematic diagram of the top view of the rear insulator of the present invention; Fig.23 is a schematic cross-sectional structural diagram of a rear insulator of the present invention; Fig.24 It is a structural schematic diagram of the back cover of the present invention; Fig.25 It is a schematic diagram of the front view structure of the back cover of the present invention; Fig.26 It is a schematic diagram of assembling the pin, the front insulator and the housing of the present invention; Fig. 27 It is a schematic diagram of the front structural view of the back cover of the present invention.

[0021] Markings in the accompanying drawings: 1. Long bend inner conductor; 2. Short bend inner conductor; 3. Front insulator; 31. Front insulator perforation; 4. Shell; 41. Shell pin; 42. Shell slide; 5. Rear insulator; 51. Raised ridge; 52. Rear insulator perforation; 6. Rear cover; 61. Rear cover slider; 7. Isolation insulator; 71. Isolation groove; 72. Spacer rib. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 to Figure 27 As shown, a bent differential contact member according to Embodiment 1 of the present invention comprises a housing 4 and a bent differential inner conductor disposed in the housing 4. Figure 4 , Figure 6 and Figure 7 As shown, the housing 4 is an L-shaped structure, wherein the housing 4 includes a horizontal cavity and a vertical section cavity connected to the rear end of the horizontal cavity. Figure 6 As shown, the rear end of the horizontal cavity and the rear side and bottom of the vertical section cavity are provided with an opening, so that the bent differential inner conductor is inserted into the interior of the shell 4 from the rear end of the shell 4, so that a part of the bent differential inner conductor is located in the horizontal cavity and the other part is located in the vertical section cavity, and the end of the bent differential inner conductor is exposed at the bottom opening of the vertical section cavity. In addition, the lower end of the vertical section cavity of the shell 4 is provided with a shell pin 41, as shown in FIG. Figure 7 The shell pin 41 and the bent differential inner conductor both have the function of signal conduction, so that the bent differential contact piece can simultaneously conduct different signals when in use.

[0024] Furthermore, if Figure 1 and Figure 5 As shown, the curved differential inner conductor includes a horizontal segment conductor, a vertical segment conductor and a curved transition segment conductor connected between the horizontal segment conductor and the vertical segment conductor. After the curved differential inner conductor is installed in the housing 4, the horizontal segment conductor is located in the horizontal cavity, the vertical segment conductor is located in the vertical cavity, and the curved transition segment conductor is located at the bend between the horizontal cavity and the vertical cavity. Figure 1 and Figure 3 As shown, the horizontal conductor is parallel to the axis of the horizontal cavity, and the vertical conductor is parallel to the axis of the vertical cavity. Figure 2 As shown, the vertical segment conductor is arranged in parallel with the shell pin 41.

[0025] Furthermore, if Figure 1 and Figure 3 As shown, the housing 4 is provided with an isolation insulator 7 for supporting the curved transition section conductor. The isolation insulator 7 is arranged at the bending part between the horizontal cavity and the vertical cavity of the housing 4. The isolation insulator 7 is located at the rear side of the curved differential inner conductor, and the curved transition section conductor is all embedded in the isolation insulator 7. The embedded arrangement of the isolation insulator 7 and the curved transition section conductor not only isolates the insulator but also supports the curved transition section conductor, thereby avoiding the problem that when the curved differential contact piece is plugged in, the horizontal section conductor is subjected to the backward plugging force, which may cause the curved section and the vertical section to be bent due to force, thereby damaging the plug pin, thereby avoiding damage to the curved differential inner conductor; and the embedded arrangement of the isolation insulator 7 and the curved transition section conductor also enables the isolation insulator 7 to play a role in signal isolation for different curved differential inner conductors, thereby reducing signal crosstalk.

[0026] Embodiment 2 is different from Embodiment 1 in that Figure 1 As shown, the housing 4 is provided with a plurality of bent differential inner conductors, and the plurality of bent differential inner conductors form at least two sets of differential pairs. Figure 5 As shown, the bent differential inner conductor forms two groups of differential pairs for transmitting two groups of differential signals. A spacing rib 72 is provided in the isolation insulator 7 for separating adjacent isolation slots, thereby isolating adjacent differential pairs. In this embodiment, the two groups of differential pairs are arranged in the housing 4 along the axis of the housing 4, and the two groups of differential pairs are respectively located on the left and right sides of the axis of the housing 4. A spacing rib 72 is provided in the middle of the isolation insulator 7 for isolating the left and right groups of differential pairs to prevent signal crosstalk between the two groups of differential pairs.

[0027] In another preferred embodiment, the number of differential pairs can be increased or decreased as needed. When three groups of differential pairs are provided, two spacer ribs 72 are provided; when four groups of differential pairs are provided, three spacer ribs 72 are provided, and so on.

[0028] Embodiment 3 is different from Embodiment 2 in that Fig.13 and Fig.14 As shown, in this embodiment, the bent differential inner conductors include a long bent inner conductor 1 and a short bent inner conductor 2. Among them, two long bent inner conductors 1 and two short bent inner conductors 2 are provided. Four inner conductors form the four differential contacts of the present invention. The long bent inner conductor 1 and the short bent inner conductor 2 each include a horizontal segment conductor, a vertical segment conductor and a curved transition segment conductor. A long bent inner conductor 1 and a short bent inner conductor 2 form a differential pair. Moreover, the horizontal segment conductor of the long bent inner conductor 1 in a differential pair is located above the horizontal segment conductor of the short bent inner conductor 2 in the group, and the vertical segment conductor of the long bent inner conductor 1 is located behind the vertical segment conductor of the short bent inner conductor 2.

[0029] In a preferred embodiment, the long bend inner conductor 1 is an integrated structure; the short bend inner conductor 2 is also an integrated structure, which avoids the welding of the bent differential inner conductor and the need for 90° transfer welding of the conductor, thereby avoiding the problems of difficult welding operation and poor processability, and also avoiding the risk of "cold solder joints" caused by welding, thereby improving the reliability of the bent differential contact.

[0030] Embodiment 4 is different from Embodiment 3 in that Figure 15~Figure 19 As shown, the outer shape of the isolation insulator 7 is roughly cylindrical, and the cylindrical shape fits with the rear end portion of the horizontal cavity of the housing 4. The isolation insulator 7 is provided with an isolation slot 71 for accommodating the curved transition section conductor, and the lower side of the isolation slot 71 is open downward so that the curved transition section conductor can be embedded in the isolation slot 71 from the lower side of the isolation slot 71. In this embodiment, the isolation slot 71 is an inverted L-shaped structure that fits the curved transition section conductor, and both ends of the isolation slot 71, i.e., the front end of the horizontal section of the isolation slot 71 and the lower end of the vertical section, are both through and open, so that the two ends of the isolation slot 71 do not form obstacles with the horizontal section conductor and the vertical section conductor of the curved differential inner conductor. The rear end of the isolation slot 71, i.e., the end close to the rear cover, is closed, and can also serve as an auxiliary support for the vertical section of the curved differential inner conductor in the forward direction. In addition, the isolation insulator 7 has limited positions on the curved differential inner conductor in all directions except the lower side, preventing the curved differential inner conductor from moving forward, backward, left, and right.

[0031] Furthermore, the number of isolation slots 71 corresponds to the number of differential pairs. Fig.17 and Fig.18 As shown, in this embodiment, two groups of differential pairs are provided, so two isolation grooves 71 are provided, and a spacing rib 72 is provided between the two isolation grooves 71.

[0032] And, if Figure 1 and Figure 5 As shown, since the long bend inner conductor 1 is located above and behind the short bend inner conductor 2 , the long bend inner conductor 1 is in contact with the top and rear side of the isolation slot 71 .

[0033] Embodiment 5 is different from Embodiment 4 in that Fig.15 and Fig.16 As shown, a portion of the lower side of the isolation insulator 7 is cut out laterally, so that the lower side of the isolation insulator 7 has a plane, and the lower side of the isolation groove 71 penetrates downward through the plane to form a gap, so that when the isolation insulator 7 is pressed forward and downward toward the bent differential inner conductor, it is convenient for the bent transition section conductor to be embedded in the isolation insulator 7 from the gap in the plane.

[0034] Embodiment 6 is different from Embodiment 4 in that Fig.15 and Fig.18As shown, a V-shaped notch is also provided at the top of the isolating insulator 7 with a cylindrical outer contour.

[0035] Embodiment 7 is different from Embodiment 4 in that a front insulator 3 is provided on the horizontal conductor. Figure 10~Figure 12 As shown, the front insulator 3 is provided with a front insulator through hole 31 for the horizontal section conductors of the long bend type inner conductor 1 and the short bend type inner conductor 2 to pass through. And the outer side of the front insulator 3 is matched with the inner wall of the shell 4.

[0036] Furthermore, if Fig.10 and Fig.11 As shown, the rear outer side of the front insulator 3 is provided with a front insulator large diameter section extending radially outward, and the horizontal cavity of the shell 4 is provided with a step hole that fits with the outer side of the front insulator 3 to better limit the installation position of the front insulator 3.

[0037] like Fig.13 and Fig.14 As shown, the middle part of the horizontal segment conductor of the long bend type inner conductor 1 and the short bend type inner conductor 2 is provided with a conductor large diameter section that radially expands and extends outward, and the diameter of the conductor large diameter section is greater than the diameter of the horizontal segment conductor body. The conductor large diameter section and the horizontal segment conductor body at the front end of the conductor large diameter section are inserted into the front insulator 3, and a corresponding diameter reducing section is provided in the front insulator through hole 31, so that the front insulator through hole 31 is better matched with the horizontal segment conductor, and plays a role in limiting the installation position of the bend type differential inner conductor.

[0038] Furthermore, if Figure 1 and Figure 3 As shown, the rear end of the conductor large diameter section forms an inner conductor step surface at the rear of the horizontal section conductor, and the inner conductor step surface cooperates with the front end of the isolation insulator 7 in the front-to-back direction. At the same time, the front end of the isolation insulator 7 cooperates with the rear end of the front insulator 3 in the front-to-back direction to further prevent the front insulator and the bent differential inner conductor from moving in the front-to-back direction.

[0039] Embodiment 8 is different from Embodiment 7 in that the rear end of the isolation insulator 7 is matched with the rear cover 6 in the front-to-back direction. Figure 1 , Figure 2 and Figure 4 As shown, the upper part of the back cover 6 is provided with a concave portion protruding toward the isolation insulator 7, and a plane abutting against the rear side of the isolation insulator 7 is provided on one side of the concave portion close to the isolation insulator 7, and the plane presses the isolation insulator 7 onto the front insulator 3, playing a role in fixing the isolation insulator 7 and the front insulator 3. In addition, the plane plays a better supporting role for the isolation insulator to prevent the isolation insulator from deflecting.

[0040] Embodiment 9 is different from Embodiment 8 in that Figure 4 , Figure 6~Figure 9 As shown, the rear end of the housing 4, i.e., the rear end of the horizontal cavity and the rear opening of the vertical section cavity, is slidably connected with a rear cover 6. The rear cover can be conveniently assembled on the housing by means of sliding connection, thus simplifying the structure. Figure 6 As shown in FIG. 1 , the opening is wide at the top and narrow at the middle and bottom. Figure 6 and Figure 8 As shown, the two sides of the middle and lower part of the opening are provided with housing slide grooves 42, and the upper ends of the housing slide grooves 42 are open. Fig.25 As shown, the concave portion of the rear cover 6 is arranged at the middle and upper part of the rear cover 6, and the upper part of the concave portion is wider, and the upper part of the rear cover 6 is wider than the middle and lower part. The upper part of the rear cover 6 fits with the upper part of the opening. Fig.24 and Fig.25 As shown, the two side surfaces of the middle and lower part of the rear cover 6 can be used as rear cover sliders 61 to slide from the upper end of the outer shell slide groove 42 into the outer shell slide groove 42, and the two side surfaces of the middle and lower part of the rear cover 6 are interference fit with the outer shell slide groove 42. When the rear cover 6 slides into the outer shell slide groove 42, the upper part of the rear cover 6 cannot enter the outer shell slide groove 42 due to its wideness, and the lower end of the wider part will have a limiting effect with the upper end of the outer shell slide groove 42, thereby playing a role in positioning whether the rear cover 6 is installed in place. In addition, in order to prevent the two side surfaces of the middle and lower part of the rear cover 6 from sliding into the outer shell slide groove 42, the lower two sides of the concave part are retracted toward the middle.

[0041] Embodiment 10 is different from Embodiment 9 in that Figure 2 and Fig.25 As shown, the outer lower side of the concave portion forms an upward lower outer step surface in the middle of the outer side of the rear cover 6. When the rear cover 6 enters the outer shell slide groove 42 and is interference-connected with the outer shell slide groove 42, force is applied to the downward outer step surface to help push the rear cover 6 into the outer shell slide groove 42.

[0042] And, if Figure 2 and Fig.25 As shown, the outer upper side of the concave portion forms an upper outer step surface facing downward on the outer side of the rear cover 6. During the process of removing the rear cover 6, force is applied to the upper outer step surface to help push the rear cover 6 to slide upward, thereby assisting the removal of the rear cover 6.

[0043] Embodiment 11 is different from Embodiment 9 in that Figure 1 and Figure 5 As shown, a rear insulator 5 is sleeved on the vertical section conductors of the long bend type inner conductor 1 and the short bend type inner conductor 2. Figure 20~Figure 23 As shown, the rear insulator 5 is provided with a rear insulator through hole 52 for the vertical section conductors of the long bend type inner conductor 1 and the short bend type inner conductor 2 to pass through. Fig.21As shown, a plurality of ridges 51 are evenly distributed on the outer side of the rear insulator 5, and the ridges 51 extend up and down along the axis of the rear insulator 5. The ridges 51 play a role of strong fit with the inner wall of the vertical section cavity of the housing 4.

[0044] In addition, if Fig. 22 As shown, the rear insulator 5 is provided with not only the rear insulator through-hole 52 but also hollow through-holes.

[0045] Furthermore, the rear insulator 5 is limitedly matched with the rear cover 6. Specifically, since the concave portion on the rear cover 6 protrudes toward the inside of the housing 4, as shown in FIG. Figure 1 As shown, a transverse rear cover step surface is formed between the lower side of the concave portion and the lower part of the rear cover 6, and the rear cover step surface is in limiting contact with the upper side surface of the rear insulator 5, that is, it is limited in the upper and lower directions, thereby limiting the installation position of the rear insulator 5.

[0046] Embodiment 12, as Fig.26 and Fig. 27 As shown, the assembly method of the bent differential contact as described in any one of the above items comprises the following steps: S1, inserting each bent differential inner conductor, i.e., the horizontal section conductors of the long bent inner conductor 1 and the short bent inner conductor 2, into the front insulator 3, and making the long bent inner conductor 1 and the short bent inner conductor 2 form a differential pair; S2, then install the horizontal segment conductor of the bent differential inner conductor in step S1 together with the front insulator 3 into the housing 4 facing forward, and make the vertical segment conductor of the bent differential inner conductor enter the rear part of the housing 4 downward, and the vertical segment conductor is parallel to the housing pin 41; S3, inserting the rear insulator 5 from the bottom onto the vertical conductor segments of the long bend type inner conductor 1 and the short bend type inner conductor 2; S4, inserting the isolation insulator 7 into the housing 4 from the rear of the housing 4, and embedding each differential pair into each isolation slot 71 of the isolation insulator 7; S5. Assemble the back cover 6 from top to bottom and insert it into the housing slide groove 42 at the rear of the housing 4. The back cover 6 and the housing are connected and fixed by interference fit; or the back cover 6 and the housing 4 are fixed by gluing or soldering to form the final 4 differential bent pin contact product.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that any modification to the technical solutions described in the aforementioned embodiments, or any equivalent replacement of some or all of the technical features therein, within the spirit and principles of the present invention, and such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A bent differential contact, characterized in that: The invention comprises a shell (4) and a curved differential inner conductor arranged in the shell (4), wherein the curved differential inner conductor comprises a horizontal segment conductor, a vertical segment conductor and a curved transition segment conductor connected between the horizontal segment conductor and the vertical segment conductor; an isolation insulator (7) for supporting the curved transition segment conductor is arranged in the shell (4), and the curved transition segment conductor is embedded in the isolation insulator (7).

2. The bent differential contact according to claim 1, characterized in that: A plurality of bent differential inner conductors are arranged in the housing (4), and the plurality of bent differential inner conductors form at least two groups of differential pairs; and a spacing rib (72) is arranged in the isolation insulator (7) for isolating adjacent differential pairs.

3. The bent differential contact according to claim 2, characterized in that: An isolation slot (71) for accommodating a bent transition segment conductor is provided in the isolation insulator (7), and a spacing rib (72) is used to separate adjacent isolation slots (71). Each isolation slot (71) cooperates with a group of differential pairs, and the front end and the bottom side of the isolation slot (71) are open, so that the bent transition segment conductor can be embedded in the isolation slot (71) from the bottom side and / or the front side of the isolation slot (71).

4. The bent differential contact according to claim 3, characterized in that: A front insulator (3) is sleeved on the horizontal segment conductor, and the front end of the isolation insulator (7) and the rear end of the front insulator (3) are matched in an upper limit position in the front-to-back direction.

5. The bent differential contact according to claim 4, characterized in that: A rear insulator (5) is sleeved on the vertical conductor segment; the front insulator (3) and the rear insulator (5) are respectively provided with through holes for the bent differential inner conductor to pass through; and the outer side of the rear insulator (5) is provided with a plurality of ridges (51) for forcibly fitting with the outer shell (4).

6. The bent differential contact according to claim 5, characterized in that: The rear end of the housing (4) is slidably connected to a rear cover (6), and the rear end of the isolation insulator (7) cooperates with the rear cover (6) in an upper limit position in the front-rear direction.

7. The bent differential contact according to claim 6, characterized in that: The upper part of the rear cover (6) is provided with a concave portion protruding toward the isolation insulator (7), the concave portion is provided with a plane abutting against the rear side of the isolation insulator (7), and the plane presses the isolation insulator (7) against the front insulator (3); a rear cover step surface is formed between the lower side of the concave portion and the lower part of the rear cover (6), and the rear cover step surface is matched with the upper side surface of the rear insulator (5) in the upper and lower directions.

8. The bent differential contact according to claim 7, characterized in that: The rear end of the shell (4) is provided with shell slide grooves (42) on both sides of the middle and lower part, and the two side surfaces of the middle and lower part of the rear cover (6) are interference fit with the shell slide grooves (42); the lower side of the inner concave portion forms an upward lower outer step surface on the outer side of the rear cover (6) for helping the rear cover (6) enter the shell slide groove (42); the upper side of the inner concave portion forms a downward upper outer step surface on the outer side of the rear cover (6) for assisting the removal of the rear cover (6).

9. The bent differential contact according to any one of claims 1 to 8, characterized in that: The bent differential inner conductors each comprise a long bent inner conductor (1) and a short bent inner conductor (2), wherein a long bent inner conductor (1) and a short bent inner conductor (2) form a differential pair; a horizontal conductor segment of the long bent inner conductor (1) and / or the short bent inner conductor (2) is provided with an inner conductor step surface extending radially outward, the inner conductor step surface being matched with the front end of the isolation insulator (7) in an upper limit position in the front-rear direction.

10. The method for assembling a bent differential contact according to any one of claims 1 to 9, characterized in that: The steps include: S1, inserting the horizontal section conductors of each bent differential inner conductor into the front insulator (3), and making the long bent inner conductor (1) and the short bent inner conductor (2) form a differential pair; S2, then the horizontal segment conductor of the bent differential inner conductor in step S1 together with the front insulator (3) are installed into the housing (4) facing forward, and the vertical segment conductor of the bent differential inner conductor is inserted downward into the rear part of the housing (4); S3, inserting the rear insulator (5) from the bottom onto the vertical segment conductor of the bent differential inner conductor; S4, inserting the isolation insulator (7) into the housing (4) from the rear of the housing (4), and embedding each differential pair into each isolation slot (71) of the isolation insulator (7); S5. Assemble the rear cover (6) from top to bottom and insert it into the housing slide groove (42) at the rear of the housing (4), or fix the rear cover (6) and the housing (4) by gluing or soldering.

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