Connector for transmitting high-speed differential signals

Abstract

The invention relates to the technical field of electric connectors, and discloses a connector for transmitting high-speed differential signals, which comprises an insulating body, a terminal assembly and a metal shell, and is characterized in that the insulating body comprises a plug-in part, the plug-in part comprises a plug-in surface and an assembling part, the plug-in surface comprises longitudinally-arranged jacks and transversely-arranged jacks, and the assembling part is arranged on the plug-in surface; the assembling part comprises a strip-shaped groove of which the opening is opposite to the plugging surface, and the strip-shaped groove is communicated with the corresponding longitudinally arranged jacks; the terminal assembly comprises a plurality of sheet-shaped terminal pieces, each terminal piece comprises terminals which are integrated by an insulation sheet, are not communicated with each other and accord with the row number of the longitudinal jacks, each terminal comprises a plugging section, a flat section, a fixed section and a pin section perpendicular to the fixed section, and the insulation sheet wraps the fixed section. When the terminal assembly is adapted to the insulating body, the plugging section is suspended in the strip-shaped groove at the front end of the flat section, and the free end of the plugging section is aligned with the hole center of the corresponding jack. According to the technical scheme, the technical problems of easy damage of products and impedance matching are solved, and the effect of improving the quality is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a connector for transmitting high-speed differential signals. Background Art

[0002] The conventional high-speed differential signal transmission connector has a docking interface that is a parallel arrangement of several (strip-shaped) plug-in slot structures (such as Figure 1 Specifically, the mating interface has a plurality of mating slots 102 formed on the insulator 100. There are spacers 101 between adjacent mating slots 102. The spacing between the spacers 101 and the mating slots 102 should meet the impedance matching of differential signals. Under this premise, the spacers 101 must be designed to be very thin. Since the thinner spacers 101 will be deformed due to force during assembly and use, this design is difficult to ensure quality and improve efficiency. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a high-speed differential signal transmission connector to solve the technical problems of preventing the insulating body from being easily deformed during assembly and use and meeting the differential signal impedance matching requirements.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] Disclosed is a high-speed differential signal transmission connector, comprising an insulating body and a terminal assembly adapted to the insulating body, and a metal shell sleeved on the rear section of the insulating body and forming a plug-in portion on the front section of the insulating body, wherein: the plug-in portion comprises a plug-in surface and an assembly portion, the plug-in surface comprises longitudinally arranged plug holes and transversely arranged plug holes, the assembly portion comprises a strip groove with an opening opposite to the plug-in surface and corresponding to the number of transversely arranged plug holes, each strip groove is connected with a corresponding longitudinally arranged plug hole; the terminal assembly is composed of a plurality of sheet-shaped terminal pieces, each terminal piece comprises an insulating sheet and a terminal which is firmly integrated by the insulating sheet and is not conductive to each other and corresponds to the number of longitudinally arranged plug holes, the terminal comprises a plug-in section, a flat section, a fixed section and a pin section perpendicular to the fixed section, the insulating sheet covers the fixed section, when the terminal assembly is adapted to the insulating body, the plug-in section is suspended on the strip groove at the front end of the flat section, and the free end of the plug-in section is aligned with the corresponding plug hole center.

[0006] In this example, preferably, the rear section of the insulating body expands outward relative to the surroundings of the plug-in portion and forms a step surface, and arch blocks are distributed around the plug-in portion to abut the step surface, and the top height of the arch blocks is smaller than the width of the step surface.

[0007] In this example, preferably, the rear section of the insulating body extends backward along the outer edge of the step surface to form a rear frame, and a clamping plate for stabilizing the terminal assembly extends from two relatively long side frames of the rear frame. The clamping plate includes a crack and an elastic wing plate formed by the crack, and the wing plate has a clamping hole.

[0008] In this example, preferably, the depth of the jack is not limited to 1 mm, and the jack array is not limited to 9 rows and 28 columns.

[0009] In this example, preferably, the insulating sheet includes an arrow protrusion adapted to the card hole.

[0010] In this example, preferably, the metal shell includes an inner cavity, and an obstructed opening is formed at a front end of the inner cavity.

[0011] In this example, preferably, when the insulating body is adapted to the metal shell, the arch blocks distributed around interfere with the inner wall of the metal shell, so that a heat dissipation gap is formed when the insulating body is combined with the metal shell.

[0012] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0013] First, the strip grooves between the plug-in surfaces are improved because the spacers are weak and easy to be damaged (deformed). The inner strip grooves are combined with the array jack plug-in surface, so that the weak spacers are strengthened through the mesh support, thereby avoiding the technical problem of easy deformation of the product during assembly and use;

[0014] Secondly, the technical problem of differential signal impedance matching is solved by improving the structural combination of the inner strip groove and the array jack plug-in surface, and by designing the insulating body arch block so that a heat dissipation gap is formed when the insulating body is combined with the metal shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0016] Figure 1 It is a three-dimensional schematic diagram of an insulator (presenting a docking interface) of a high-speed differential signal transmission connector in the prior art.

[0017] Figure 2 It is a three-dimensional schematic diagram of the high-speed differential signal transmission connector (presenting the docking interface) of this embodiment.

[0018] Figure 3 It is a three-dimensional schematic diagram of a high-speed differential signal transmission connector (presenting an electrical plug-in) according to this embodiment.

[0019] Figure 4 It is a three-dimensional schematic diagram of the insulating body (showing the docking interface) of the high-speed differential signal transmission connector of this embodiment.

[0020] Figure 5 yes Figure 4 A three-dimensional schematic diagram of the insulating body (shown from a perspective opposite to the docking interface).

[0021] Figure 6 It is a front view of the high-speed differential signal transmission connector (presenting the docking interface) of this embodiment.

[0022] Figure 7 yes Figure 6 Cross-section view of AA.

[0023] Figure 8 yes Figure 7 Enlarged view of the circled F.

[0024] Fig. 9 yes Figure 6 Cross-section of the BB.

[0025] Fig.10 yes Fig. 9 Magnified view of the circled location.

[0026] Brief description of the accompanying drawings: insulating body 10, plug-in portion 11, plug-in surface 111, plug hole 1111, assembly portion 112, 1121 strip partition, strip groove 1122, step surface 113, arch block 114, inner arc portion 115, clamping plate 12, crack 121, wing plate 122, clamping hole 1221; terminal assembly 20, insulating sheet 21, arrow protrusion 211, terminal 22, plug-in section 221, flat section 222, fixed section 223, pin section 224; metal shell 30, pin hole 31, pin groove 32, pin 33, obstruction 34. DETAILED DESCRIPTION

[0027] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0028] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0029] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0030] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, the indications of these directions also change accordingly.

[0032] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0034] See also Figure 2 See also Figure 4 , Figure 5 , Figure 7 and Figure 8 , discloses a high-speed differential signal transmission connector (such as Figure 2 ) includes an insulating body 10 (such as Figure 4 ) and a terminal assembly 20 adapted to the insulating body 10 and a metal shell 30 which is sleeved on the rear section of the insulating body 10 and enables the front section of the insulating body 10 to form a plug-in portion 11. Figure 5 is contrary to Figure 4 Schematic diagram of the insulation body from the perspective of Figure 7 and Figure 8 The design key points of the connector of this embodiment can be fully understood, which is convenient for description and easy to read. Figure 4 and Figures 6 to 8 ) includes a plug-in surface 111 and an assembly portion 112, the plug-in surface 111 array has jacks 1111, the jacks 1111 include but are not limited to 9 jacks in a wide row (longitudinal arrangement) and 28 jacks in a long row (lateral arrangement), and the jack depth is not limited to 1mm; the assembly portion 112 (such as Figure 5) includes a strip partition 1121 and a strip groove 1122 formed by the strip partition 1121. The depth of the strip groove 1122 is greater than the depth of the plug hole, and each strip groove 1122 corresponds to a corresponding wide row (longitudinally arranged) of plug holes and is connected thereto. The rear section (not marked) of the insulating body 10 is extended outward relative to the surroundings of the plug-in portion 11 to form a step surface 113. The step surface 113 is abutted against and is distributed with arch blocks 114 around the plug-in portion 11. The top height of the arch block 114 is less than the width of the step surface 113 (see Figure 4 In this example, the rear section of the insulating body 10 extends backward along the outer edge of the step surface 113 to form a rear frame (not marked), and the two relatively long frames of the rear frame (continue to extend backward) are provided with a clamping plate 12 for stabilizing the terminal assembly 20. The clamping plate 12 includes a crack 121 and an elastic wing plate 122 formed by the crack 121, and the wing plate 122 has a clamping hole 1221; the two relatively short frames of the rear frame are formed as an inner arc portion 115 (see Figure 5 shown).

[0035] Please continue to see Figure 2 , Figure 7 and Figure 8 The terminal assembly 20 in the figure is composed of several sheet-shaped terminal parts (not marked) arranged side by side, each terminal part includes an insulating sheet 21 and a 9-pin terminal (hereinafter referred to as "terminal group") 22 that is firmly integrated by the insulating sheet 21 and is not conductive to each other. In this example, the insulating sheet 21 has an arrow convex 211 that adapts to the card hole 1221; the terminal group 22 includes a plug-in section 221, a flat section 222, a fixed section 223 and a pin section 224 perpendicular to the fixed section, wherein: the insulating sheet 21 covers the fixed section 223 of the terminal group 22, and the arrow convex 211 corresponds to the corresponding card hole 1221 on the upper and lower sides of the insulating sheet. In this embodiment, when the terminal assembly 20 is adapted to the insulating body 10, the plug-in section 221 is at the front end of the flat section 222 and is suspended from the strip groove 1122. At this time, each plug-in section 221 is aligned with the corresponding hole center of the plug hole 1111 in the strip groove 1122 to facilitate the corresponding external connector to be plugged in and adapted.

[0036] See also Figure 3 , Figure 5 , Figure 6 , Fig. 9 and Fig.10In the figure, the metal shell 30 is provided with a latch hole 31 corresponding to the other long frame at both ends near one long frame. When the latch holes 31 of the two long frames are formed and connected, they occupy the inner wall of the short frame, so that the inner wall of the short frame is formed into a latch groove 32 with a radius of the latch hole 31 relative to the inner arc portion 115. When the insulating body 10 is equipped with the metal shell, the inner arc portion 115 is combined with the latch groove 32 and connected with the latch hole 31. In this example, the front end of the inner cavity of the metal shell 30 has an obstruction 34 (that is, the obstruction frame is smaller than the inner cavity frame) that abuts against the step surface 113 of the insulating body (adaptation). When the insulating body 10 is fitted into the metal shell 30, the step surface 113 abuts against the obstruction 34, so that the insulating body 10 cannot be dislodged forward in the metal shell 30. When the plug 33 passes from one long frame plug hole 31 to another long frame plug hole, the plug 33 interferes with the inner arc portion 115 in the plug groove 32, so that the insulating body 10 cannot be dislodged backward when it is fitted into the metal shell 30. In this example, the plug 33 is rolled from a metal sheet so that it can be elastically (or flexibly) adapted to the plug hole. The metal material can not only meet the stress strength and extend the service life, but also facilitate loading and unloading through the elasticity of the rolled body, thereby improving product quality and facilitating maintenance and reuse.

[0037] In the above embodiment, the arch blocks 114 distributed around the plug-in portion 11 are also a design point of the present invention. In other words, the arch blocks 114 interfere with the inner wall of the metal shell 30, which can reduce the tolerance and improve the smoothness while facilitating the manufacturing process. More importantly, the arch blocks 114 form a heat dissipation gap when the insulating body 10 is combined with the metal shell 30, so as to further meet the differential signal impedance matching.

[0038] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0039] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high-speed differential signal transmission connector, comprising an insulating body, a terminal assembly adapted to the insulating body, and a metal shell sleeved on the rear section of the insulating body and forming a plug-in portion on the front section of the insulating body, characterized in that: The plug-in portion includes a plug-in surface and an assembly portion, the plug-in surface includes longitudinally arranged jacks and transversely arranged jacks, the assembly portion includes a strip groove with an opening opposite to the plug-in surface and corresponding to the number of transverse jacks, and each strip groove is connected with the corresponding longitudinally arranged jacks; the terminal assembly is composed of a plurality of sheet-shaped terminal pieces, each terminal piece includes an insulating sheet and terminals that are fixedly integrated by the insulating sheet and are not conductive to each other and correspond to the number of longitudinal jack rows, the terminal includes a plug-in section, a flat section, a fixed section and a pin section perpendicular to the fixed section, the insulating sheet covers the fixed section, and when the terminal assembly is adapted to the insulating body, the plug-in section is suspended in the strip groove at the front end of the flat section, and the free end of the plug-in section is aligned with the center of the corresponding jack hole.

2. A high-speed differential signal transmission connector as claimed in claim 1, characterized in that: The rear section of the insulating body expands outward relative to the surrounding of the plug-in portion to form a step surface, and arch blocks are distributed around the plug-in portion to abut the step surface, and the top height of the arch blocks is smaller than the width of the step surface.

3. A high-speed differential signal transmission connector as claimed in claim 2, characterized in that: The rear section of the insulating body extends backward along the outer edge of the step surface to form a rear frame. A clamping plate for stabilizing the terminal assembly extends from two relatively long frames of the rear frame. The clamping plate includes a crack and an elastic wing plate formed by the crack, and the wing plate has a clamping hole.

4. A high-speed differential signal transmission connector as claimed in claim 3, characterized in that: The depth of the jack is not limited to 1 mm, and the jack array is not limited to 9 rows and 28 columns.

5. A high-speed differential signal transmission connector as claimed in claim 4, characterized in that: The insulating sheet includes an arrow protrusion adapted to the card hole.

6. A high-speed differential signal transmission connector as claimed in claim 5, characterized in that: The metal shell comprises an inner cavity, and an obstruction opening is formed at a front end of the inner cavity.

7. A high-speed differential signal transmission connector as claimed in claim 6, characterized in that: When the insulating body is adapted to the metal shell, the arch blocks distributed around interfere with the inner wall of the metal shell, so that a heat dissipation gap is formed when the insulating body is combined with the metal shell.

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