CN213071650U - Connector for high-frequency signal transmission - Google Patents
Connector for high-frequency signal transmission Download PDFInfo
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- CN213071650U CN213071650U CN202022209779.1U CN202022209779U CN213071650U CN 213071650 U CN213071650 U CN 213071650U CN 202022209779 U CN202022209779 U CN 202022209779U CN 213071650 U CN213071650 U CN 213071650U
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Abstract
The invention relates to a connector for high-frequency signal transmission, which comprises a first shell and a second shell, wherein the second shell is sleeved in the first shell, and the connector also comprises: a terminal assembly including a plurality of signal transmission terminals and at least one ground terminal; the insulating body is used for fixing the terminal component and is sleeved on the second shell; the cable wire comprises a plurality of core wire groups and a grounding wire, wherein each core wire group is respectively connected with the signal transmission terminal; the grounding piece is arranged on the insulating body, one end of the grounding piece is connected with the grounding wire, and the other end of the grounding piece is connected with the grounding terminal; the cable wire is provided with a first shielding layer, and the first shielding layer covers the plurality of core wire groups and the grounding wire.
Description
Technical Field
The present invention relates to a connector, and more particularly to a connector for high frequency signal transmission.
Background
In recent years, with the rapid development of electronic products for digital signal transmission, electronic connectors play a crucial role. People put forward higher and higher requirements on multimedia transmission quality, particularly the demand on high-definition multimedia is increased, and the multimedia for simply transmitting video or audio signals cannot meet the demand of the current society. However, at present, electronic products have strict requirements on signal transmission and loss, and meanwhile, EMI protection of products is cautious, and the requirements of customers on ID of the products and the requirements of users on product sense organs require that the products have softness and touch feeling continuously improved. For example, the conventional HDMI connector needs to solder 4 to 5 signals to the ground line and the ground terminal during the soldering process. Due to the design, the material cost of the grounding wire is increased, the welding is complex, and the processing cost of the welding is increased; the number of strands of the wires is too large, so that the softness of the wires is influenced, and the hand feeling of the product is poor; meanwhile, the welding mode also relates to multi-ground wire welding, and the stability of the welding process is considered, so that the grounding effect is different, and the EMI effect of the product is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, an object of the present invention is to provide a connector for high frequency signal transmission, which provides a cable wire with a novel design, reduces the number of ground wires in the cable wire, and replaces the external shielding braid of the conventional wire with a conductive wave-absorbing material; meanwhile, in the connector, a novel grounding sheet is designed to solve the wiring harness grounding trouble and carry out EMI anti-blocking from a transmission end.
Specifically speaking, the utility model discloses a connector for high frequency signal transmission, including a first casing and a second casing, the second casing cup joint in first casing, the connector still includes:
a terminal assembly including a plurality of signal transmission terminals and at least one ground terminal;
the insulating body is used for fixing the terminal assembly and is sleeved on the second shell;
the cable wire comprises a plurality of core wire groups and a grounding wire, wherein each core wire group is respectively connected with the signal transmission terminal;
the grounding piece is arranged on the insulating body, one end of the grounding piece is connected with the grounding wire, and the other end of the grounding piece is connected with the grounding terminal;
the cable wire is provided with a first shielding layer, and the first shielding layer covers the core wire groups and the grounding wire.
Optionally, in the connector for high-frequency signal transmission, the first housing is a metal housing, and the second housing is an insulating housing.
Optionally, in the connector for high frequency signal transmission, the terminal assembly includes an upper row of terminals and a lower row of terminals, and the ground plate includes a middle spacer interposed between the upper row of terminals and the lower row of terminals.
Optionally, in the connector for high-frequency signal transmission, the ground strip includes a plurality of first resilient strips extending forward from the middle strip, each of the first resilient strips has an upward or downward pointed end, and the first resilient strips contact the ground terminal through the pointed ends in a one-to-one correspondence manner.
Optionally, in the connector for transmitting a high-frequency signal, the ground strip includes a second elastic strip extending backward from the middle spacer, one end of the second elastic strip, which is away from the middle spacer, has a hook-shaped bending portion, and the second elastic strip is connected to the ground line through the hook-shaped bending portion.
Optionally, in the connector for transmitting a high-frequency signal, the ground strip includes at least two third elastic strips respectively located at left and right sides of the middle partition, and the at least two third elastic strips are respectively abutted to the first housing through a through hole of the second housing.
Optionally, in the connector for high-frequency signal transmission, two ends of the middle spacer are respectively provided with a bending portion, and the bending portions are respectively embedded in corresponding slots on the insulating body so as to limit the grounding piece on the insulating body.
Optionally, in the connector for high-frequency signal transmission, the first shielding layer is made of a conductive wave-absorbing material.
Optionally, in the connector for high-frequency signal transmission, the first shielding layer is a conductive fiber.
Optionally, in the connector for high-frequency signal transmission, each core wire set includes at least two signal transmission lines, each signal transmission line is sleeved in an insulating layer, each core wire set is sleeved in a second shielding layer, and no ground wire is disposed in the core wire set.
Optionally, in the connector for high-frequency signal transmission, the second shielding layer is an aluminum foil or a copper foil.
Optionally, in the connector for high-frequency signal transmission, the ground line is a 32AWG × 1C-sized wire.
Optionally, in the above connector for high frequency signal transmission, the signal transmission line is a wire of 32AWG × 5P and/or 32AWG × 4C gauge.
The utility model has the advantages of avoiding the traditional low-efficiency grounding wire, simplifying the welding process of the connector, reducing the material cost and improving the product process efficiency; meanwhile, the outer shielding braid of the traditional wire is replaced by a conductive wave-absorbing material, so that the softness and the hand feeling of the cable wire are better than those of the traditional wire; meanwhile, in the welding process, double protection of EMI is realized.
In order to make the aforementioned features and effects of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is an overall schematic diagram of a connector and a signal transmission line according to an embodiment of the present invention.
Fig. 2 is an overall schematic diagram of a connector according to an embodiment of the present invention.
Fig. 3 is an exploded view of a connector according to an embodiment of the present invention.
Fig. 4A is a cross-sectional view of a cable wire of the prior art.
Fig. 4B is a cross-sectional view of a cable wire according to an embodiment of the present invention.
Fig. 5A is an internal structure diagram of a connector according to an embodiment of the present invention.
Fig. 5B and 5C are internal structural views of the connector and the cable according to an embodiment of the present invention.
Fig. 6 is a schematic view of a grounding plate according to an embodiment of the present invention.
Wherein, the reference numbers:
10: a connector;
11: a first housing; 12: a second housing; 121: a through hole;
13: an insulating body; 14: a terminal assembly;
15: a ground plate; 16. 16': a cable wire;
131. 132: a support; 133: grooving;
141: an upper row of terminals; 142: a lower row of terminals;
143: a signal transmission terminal; 144: a ground terminal;
151: a middle spacer; 152: a first spring plate;
153: a second elastic sheet; 154: a third elastic sheet;
155: a bending section;
1521: a pointed end; 1531: a hook-shaped bending part;
161: a ground line; 162. 162': a core wire set;
163. 163': a signal transmission line;
161': a first ground line; 164': a second ground line;
164: a first shielding layer; 165: a second shielding layer;
166: an insulating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The technical terms in the specification refer to the common terms in the technical field, and if the specification explains or defines a part of the terms, the explanation of the part of the terms is subject to the explanation or definition in the specification. Each embodiment of the present invention has one or more technical features. In the present invention, the present invention provides a method for implementing a mobile communication system, which is capable of providing a mobile communication system with a plurality of mobile communication devices.
Fig. 1 is an overall schematic diagram of a connector and a signal transmission line according to the present invention. Fig. 2 is an overall schematic view of a connector according to an embodiment of the present invention. Fig. 3 is an exploded view of a connector according to an embodiment of the present invention. Referring to fig. 1 to fig. 3, the connector 10 includes a first housing 11, a second housing 12, a terminal assembly 14, an insulating body 13, and a grounding piece 15, and the connector 10 and the cable 16 together form a signal patch cord of the present invention. The first housing 11 and the second housing 12 are both in a cavity shape with two open ends, and the second housing 12 is sleeved inside the first housing 11, that is, the first housing 11 covers the second housing 12. in an embodiment of the present invention, the first housing 11 is made of metal or alloy by an integral molding method, the second housing 12 is made of an integral molding injection molding method, and the second housing 12 is generally made of a material with a good insulating effect.
The connector 10 of the present embodiment further includes a terminal assembly 14 and an insulating body 13, wherein the terminals in the terminal assembly 14 are respectively arranged in two rows, for example, 9 terminals and 10 terminals. Correspondingly, the insulating body 13 may also include two upper brackets 131 and 132 according to the terminal groups 141 and 142 in the upper and lower rows, respectively, where the bracket 131 is used to fix the upper row of terminals 141, that is, the upper row of terminals 141 is fixed on the bracket 131; the bracket 132 is used for fixing the lower row of terminals 142, that is, fixing the lower row of terminals 142 on the bracket 132. In another embodiment of the present invention, the bracket 131 and the upper row terminal 141, the bracket 132 and the lower row terminal 142 are formed by injection molding, so that the bracket 131 and the upper row terminal 141, the bracket 132 and the lower row terminal 142 have good fixing effect. The bracket 131 and the bracket 132 can be fixed to each other in a matching manner, for example, the bracket and the bracket can be adhered by a glue, or for example, the bracket and the bracket can be provided with a concave portion and a convex portion for engaging with each other, which is not limited by the invention.
One end of the terminal assembly 14 of the connector 10 of the present embodiment is fixedly connected to the cable material 16. Fig. 4A is a cross-sectional view of a cable wire according to the prior art, as shown in fig. 4A. The cable 16 'in fig. 4A includes a plurality of core sets 162' and a first ground line 161 ', wherein each core set 162' further includes at least two data lines 163 'and a second ground line 164'. Fig. 5B is a cross-sectional view of a cable wire according to an embodiment of the present invention. Unlike the cable of the prior art, the cable 16 shown in fig. 4B includes a plurality of core wire sets 162 and a grounding wire 161, at least two signal transmission lines 163 are included in each core wire set 162, and the configuration of the core wire sets 162 without grounding wires is grounded through only one grounding wire 161. Therefore, the core wires of the cable wires are reduced, the wire cost is saved, the welding process can be simplified, and in addition, the wires are softer due to the reduction of the wires, so that the product has better hand feeling.
Further, as shown in fig. 4B, in the cable wire of the present invention, the plurality of core wire sets 162 and the ground wire 161 are sleeved in the first shielding layer 164, that is, the plurality of core wire sets 162 and the ground wire 161 are covered by the first shielding layer 164, in an embodiment of the present invention, the first shielding layer 164 may be a shielding net made of a conductive wave-absorbing material, and the conductive wave-absorbing material may be, for example, conductive fibers, etc., which is not limited thereto. At least one insulating layer may be further coated on an outer surface of the first shielding layer 164 to protect the first shielding layer 164.
Further, each core wire set 162 can be covered by at least one second shielding layer 165, the second shielding layer 165 is usually a metal layer, and in an embodiment of the present invention, the metal layer can be, for example, a metal aluminum layer including at least two layers of aluminum foil, which, of course, is not limited thereto. The outer surface of each signal transmission line in each core set 162 is also coated with at least one insulation layer 166, such that the insulation layer 166 is interposed between the signal transmission line 163 and the second shielding layer 165. In the implementation, due to the use of the conductive wave-absorbing material, on one hand, the softness and the hand feeling of the cable wire are better than those of the traditional wire, and on the other hand, the electromagnetic shielding performance in the signal transmission process is also enhanced.
In another embodiment of the present invention, each signal transmission line 163 in the core wire set 162 of the cable 16 may adopt a wire with a specification of 32AWG × 5P and/or 32AWG × 4C, and the ground wire 161 may also adopt a wire with a specification of 32AWG × 1C, which is not limited to this.
With further reference to fig. 5A-5C, fig. 5A is an internal structure diagram of the connector 10 according to an embodiment of the present invention, and fig. 5B and 5C are internal structure diagrams of the connector and the cable connection according to an embodiment of the present invention. As shown in fig. 5A and 5B, the upper row terminal 141 and the lower row terminal 142 of the terminal assembly 14 include a plurality of signal transmission terminals 143(S) and at least one ground terminal 144(G), which are generally arranged in a GSSG arrangement. The ground plate 15 is fixed to the insulating body 13, the ground line 161 is connected to one end of the ground plate 15, and the other end of the ground plate 15 is connected to the ground terminal 144(G) of the terminal assembly 14.
In the present embodiment, for example, the cable 16 shown in fig. 4B is connected to a connector 10 shown in fig. 5A. As shown in fig. 5B and 5C, the core wire group 162 and the ground wire 161 inside the cable 16 are connected to the signal transmission terminal 143(S) and the ground terminal 144(G) on the terminal assembly 14, respectively. The ground terminal 144(G) is connected to one end of the ground piece 15, and the ground piece 15 is fixed to the insulating body 13.
Specifically, with continued reference to fig. 6, fig. 6 is a schematic view of the grounding plate 15 of the present embodiment. As shown in fig. 6, the grounding plate 15 is made of a metal material, and includes a middle spacer 151, a plurality of elastic pieces are disposed on the middle spacer 151, including a plurality of first elastic pieces 152 and a second elastic piece 153 respectively disposed at two ends of the middle spacer 151, and further including a third elastic piece 154 and a bending portion 155 disposed at two sides of the middle spacer 151. In an embodiment of the present invention, the number of the first elastic pieces 152 may be, for example, 5, the number of the second elastic pieces 153 may be, for example, 1, and the number of the third elastic pieces 154 and the bent portions 155 may be, for example, 2 (1 is respectively disposed on two sides of the middle spacer), but the invention is not limited thereto.
In another embodiment of the present invention, the first elastic piece 152 has a pointed end 1521 bent upward or downward, and the pointed end 1521 is used to abut against the ground terminal 144 in the terminal assembly 14. In another embodiment of the present invention, an end of the second resilient piece 153 away from the middle spacer 151 has a hook-shaped bending portion 1531 for connecting with the ground line 161. Furthermore, in another embodiment of the present invention, at least one third elastic piece 154 is further disposed on each of two sides of the middle partition 151, and the third elastic pieces 154 extend toward two opposite outer sides, respectively pass through the through holes 121 of the second housing 12 to abut against the first housing 11 coated on the outer side of the insulating body 13, so as to electrically connect with the first housing 11. In the present invention, the elastic sheet on the grounding plate 15 is not limited thereto, and the illustration of the embodiment is only for convenience of description. In addition, in the present embodiment, the bending portions 155 at the two sides of the middle spacer 151 respectively correspond to the slots 133 (see fig. 3) on the insulating body 13, and the slots 133 are disposed on the bracket 131, for example. The bent portion 155 is embedded in the slot 133 of the insulating body to relatively limit the grounding plate 15 on the insulating body 13, so as to prevent the grounding plate from sliding to cause poor electrical contact.
Specifically, the grounding strip 15 is a core component beneficial to EMI protection, each first elastic sheet 152 corresponding to the grounding strip 15 is connected to the grounding terminal 144(G) in the terminal assembly 14, so that a plurality of ground wires are not welded to the grounding terminal 144(G), and the second elastic sheet 153 is welded to the grounding wire 161 in the cable wire 16, so that during welding, dual protection against EMI is achieved.
To sum up, the utility model provides a connector of cable wire and grounding piece with novel design, this connector can be used to the transmission of high frequency signal. Compared with the connector in the prior art, the connector reduces grounding wires in cable wires, and replaces the outer shielding braid of the traditional wires with conductive wave-absorbing materials, thereby saving the material cost, enabling the wires practical by the connector to be more flexible and better to use and enhancing the use effect of users; meanwhile, the novel grounding piece designed in the connector is beneficial to solving the wiring harness grounding trouble, EMI blocking prevention is carried out from a transmission end, and double protection of EMI is realized.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. A connector for high-frequency signal transmission, includes a first casing and a second casing, the second casing cup joints in the first casing, its characterized in that, the connector still includes:
a terminal assembly including a plurality of signal transmission terminals and at least one ground terminal;
the insulating body is used for fixing the terminal assembly and is sleeved on the second shell;
the cable wire comprises a plurality of core wire groups and a grounding wire, wherein each core wire group is respectively connected with the signal transmission terminal;
the grounding piece is arranged on the insulating body, one end of the grounding piece is connected with the grounding wire, and the other end of the grounding piece is connected with the grounding terminal;
the cable wire is provided with a first shielding layer, and the first shielding layer covers the core wire groups and the grounding wire.
2. The connector of claim 1, wherein the first housing is a metal housing and the second housing is an insulative housing.
3. The connector of claim 1, wherein said terminal assembly includes an upper row of terminals and a lower row of terminals, and said ground plate includes a central spacer interposed between said upper row of terminals and said lower row of terminals.
4. The connector of claim 3, wherein the grounding plate comprises a plurality of first resilient pieces extending forward from the middle spacer, each of the first resilient pieces has an upward or downward pointed end, and the first resilient pieces contact the grounding terminal through the pointed ends in a one-to-one correspondence.
5. The connector of claim 3 or 4, wherein the ground plate comprises a second resilient piece extending rearward from the middle spacer, an end of the second resilient piece away from the middle spacer has a hook-shaped bending portion, and the second resilient piece is connected to the ground line through the hook-shaped bending portion.
6. The connector of claim 5, wherein the ground strip includes at least two third resilient tabs respectively located on left and right sides of the middle spacer, and the at least two third resilient tabs are respectively abutted to the first housing through a through hole of the second housing.
7. The connector of claim 6, wherein each of the two ends of the middle spacer has a bent portion, and the bent portions are respectively embedded in corresponding slots of the insulating body to limit the grounding piece to the insulating body.
8. The connector of claim 1, wherein the first shield layer is made of a conductive, wave-absorbing material.
9. The connector of claim 1, wherein the first shield layer is a conductive fiber.
10. The connector of claim 1, wherein each core assembly comprises at least two signal transmission lines, each signal transmission line is sleeved in an insulating layer, each core assembly is sleeved in a second shielding layer, and no ground wires are arranged in the core assemblies.
11. The connector of claim 10, wherein the second shield layer is an aluminum or copper foil; the grounding wire is a 32AWG 1C-sized conducting wire; the signal transmission line is a wire with the specification of 32AWG 5P and/or 32AWG 4C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022209779.1U CN213071650U (en) | 2020-09-30 | 2020-09-30 | Connector for high-frequency signal transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022209779.1U CN213071650U (en) | 2020-09-30 | 2020-09-30 | Connector for high-frequency signal transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213071650U true CN213071650U (en) | 2021-04-27 |
Family
ID=75561145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022209779.1U Active CN213071650U (en) | 2020-09-30 | 2020-09-30 | Connector for high-frequency signal transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213071650U (en) |
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2020
- 2020-09-30 CN CN202022209779.1U patent/CN213071650U/en active Active
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