High-speed transmission connector

Abstract

The utility model discloses a high-speed transmission connector, which comprises a first shell, a second shell, a metal grounding piece, a fixing plate and two groups of terminal modules, and is characterized in that an insertion cavity is arranged in the first shell, and a plurality of insertion grooves are arranged on two sides of the insertion cavity; the terminal module comprises a first terminal, a second terminal and a mounting plate used for fixing the first terminal and the second terminal, and the first terminal and the second terminal are inserted into the insertion grooves; the metal grounding piece is arranged between the two groups of terminal modules, elastic arms are arranged on two sides of the metal grounding piece, the elastic arms are respectively in lap joint with first terminals in the terminal modules on two sides, and the fixing plate is arranged below the metal grounding piece and is used for fastening the metal grounding piece on the mounting plate. According to the utility model, the metal grounding sheet is used and is connected with the grounding terminal through the elastic arm, so that the connector has the characteristics of good contact effect and high conductivity, crosstalk can be reduced, and designed high-frequency performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a high-speed transmission connector. Background Art

[0002] Connectors are mainly used to achieve electrical connection after plugging and unplugging to achieve signal transmission. Existing connectors mainly use conductive plastic parts to connect ground terminals together. Such conductive plastic parts are prone to poor contact during plugging and unplugging, and the conductivity of conductive plastic parts is unstable. When high-frequency signals are transmitted, conductive plastic parts will cause signal loss or electromagnetic interference due to changes in signal frequency. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a high-speed transmission connector, which uses a metal grounding plate and is connected to the grounding terminal through an elastic arm. It has the characteristics of good contact effect and high conductivity, can reduce crosstalk, and achieve the designed high-frequency performance.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A high-speed transmission connector comprises a first shell, a second shell, a metal grounding sheet, a fixing plate and two groups of terminal modules, wherein a plug-in cavity is provided in the first shell, and a plurality of plug-in slots are provided on both sides of the plug-in cavity; the terminal module comprises a first terminal and a second terminal and a mounting plate for fixing the first terminal and the second terminal, and the first terminal and the second terminal are plugged into the plug-in slots; the metal grounding sheet is arranged between the two groups of the terminal modules, and elastic arms are provided on both sides of the metal grounding sheet, and the elastic arms are respectively overlapped with the first terminals in the terminal modules on both sides; the fixing plate is arranged below the metal grounding sheet, and is used to fasten the metal grounding sheet to the mounting plate.

[0006] As a preferred technical solution, abutment sheets are provided at the bottom of the metal grounding sheet, and the abutment sheets are arranged in two rows and staggered on the metal grounding sheet.

[0007] As a preferred technical solution, the fixing plate is provided with a first fixing groove and a second fixing groove. 8. The first fixing groove and the second fixing groove are arranged on both sides of the fixing plate and are staggered, and the third fixing groove is arranged above the fixing plate.

[0008] As a preferred technical solution, the first terminal and the second terminal both include a plug-in portion, a fixing portion and a lap portion, the plug-in portion is curved and plug-connected to the plug-in slot, the fixing portion is connected to the mounting plate, and the lap portion is in contact with the elastic arm, so as to form an electrical connection between the terminal module and the metal grounding plate.

[0009] As a preferred technical solution, the first terminal is a ground terminal, and the second terminal is a signal pair terminal.

[0010] As a preferred technical solution, the first terminals and the second terminals are arranged in pairs and spaced apart from each other.

[0011] As a preferred technical solution, a plurality of grooves are formed on the outer wall of the first shell, and a protrusion is formed on the second shell, and the protrusion is engaged and connected with the groove.

[0012] As a preferred technical solution, a buckling hole is provided on the first shell, and buckling teeth are provided on the outer side of the mounting plate, and the buckling teeth are buckled and connected with the buckling hole.

[0013] As a preferred technical solution, the metal grounding plate is a stainless steel grounding plate.

[0014] As a preferred technical solution, a positioning column and a fixing plate are provided on the first shell, and the positioning column and the fixing plate are respectively provided at two ends of the first shell.

[0015] The beneficial effects of the utility model are as follows: the utility model provides a high-speed transmission connector, which uses a metal grounding plate and is connected to a grounding terminal through an elastic arm, has the characteristics of good contact effect and high conductivity, can reduce crosstalk, and achieve the designed high-frequency performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a cross-sectional view of a high-speed transmission connector provided in an example of the utility model;

[0018] Figure 2 This is a structural schematic diagram of a high-speed transmission connector provided by an example of the utility model;

[0019] Figure 3 It is an exploded view of a high-speed transmission connector provided by an example of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the first housing in one embodiment of the utility model;

[0021] Figure 5 yes Figure 3 The enlarged view of point A in the middle;

[0022] Figure 6 yes Figure 3 The enlarged view of point B in the middle;

[0023] Figure 7 yes Figure 3 Enlarged view of point C in the middle;

[0024] Figure 8 It is a structural schematic diagram of the first terminal in one embodiment of the utility model.

[0025] Explanation of the reference numerals: 1. first shell; 11. groove; 12. snap-fit ​​hole; 13. plug-in slot; 2. second shell; 21. protrusion; 3. terminal module; 31. first terminal; 311. plug-in portion; 312. fixing portion; 313. overlapping portion; 32. second terminal; 33. mounting plate; 331. snap teeth; 4. metal grounding plate; 41. elastic arm; 42. abutment plate; 5. fixing plate; 51. first fixing slot; 52. second fixing slot; 53. third fixing slot; 6. fixing plate; 7. positioning column. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0027] Please refer to Figure 1-Figure 4 An example of the utility model provides a high-speed transmission connector, including a first shell 1, a second shell 2, a metal grounding sheet 4, a fixing plate 5 and two sets of terminal modules 3.

[0028] The outer wall of the first housing 1 is provided with a plurality of grooves 11, and the second housing 2 is provided with a protrusion 21, and the second housing 2 is engaged with the first housing 1 by the cooperation between the protrusion 21 and the groove 11. This arrangement increases the stability between the first housing 1 and the second housing 2, and prevents the connector from relative displacement during use.

[0029] The first housing 1 is provided with a positioning column 7 and a fixing plate 6, which are respectively provided at both ends of the first housing 1 to prevent shaking during plugging and unplugging. In this embodiment, the fixing plate 6 is inserted into the first housing 1 by plugging.

[0030] The first housing 1 is provided with a plug-in cavity, and the two sides of the plug-in cavity are provided with a plurality of plug-in slots 13 for accommodating the terminal module 3. By designing the plug-in slots 13, the terminal module 3 can be stably inserted and fixed in the first housing 1, providing good electrical contact. At the same time, the reliability and stability of the connector can be improved, and the risk of failure and poor connection can be reduced. The number and size of the plug-in slots 13 can be selected according to actual needs to meet different application scenarios and transmission requirements.

[0031] like Figure 3 , Figure 8 As shown, the terminal module 3 includes a first terminal 31 and a second terminal 32 and a mounting plate 33 for fixing the first terminal 31 and the second terminal 32. The first terminal 31 and the second terminal 32 are arranged in pairs and spaced apart. The first terminal 31 and the second terminal 32 are plugged into the plug slot 13. The first terminal 31 and the second terminal 32 each include a plug-in portion 311, a fixing portion 312 and a lap portion 313. The plug-in portion 311 is bent and inserted into the plug slot 13. The fixing portion 312 is connected to the mounting plate 33 to firmly combine the terminal and the mounting plate 33. The lap portion 313 contacts the elastic arm 41 of the metal grounding plate 4 to form an electrical connection between the terminal module 3 and the grounding plate.

[0032] like Figure 2 , Figure 5 As shown, a snap-fit ​​hole 12 is provided on the first shell 1, and a snap tooth 331 is provided on the outer side of the mounting plate 33. The snap tooth 331 is snap-fitted with the snap-fit ​​hole 12 on the first shell 1. The matching connection between the snap tooth 331 and the snap-fit ​​hole 12 can position and fix the terminal module 3. Specifically, the first terminal 31 is a grounding terminal for grounding, and the second terminal 32 is a signal terminal for transmitting signals.

[0033] When assembling the terminal module 3 and the first shell 1, the plug-in portion 311 in the first terminal 31 and the second terminal 32 is pushed upward to be inserted into the plug-in slot 13 in the first shell 1, and when the first terminal 31 and the second terminal 32 are pushed in, the buckle teeth 331 on the mounting plate 33 are buckled and connected with the buckle holes 12 on the first shell 1, so that the terminal module 3 is fixed on the first shell 1.

[0034] The terminal module 3 is an integrally formed part, and is manufactured by an embedded molding method. The terminal module 3 manufactured by this method enables the first terminal 31 and the second terminal 32 in the terminal module 3 to be conveniently inserted into the plug-in slot 13, and is fixed to the first shell 1 through the mounting plate 33, thereby improving assembly efficiency and structural stability.

[0035] like Figure 6As shown, the metal grounding sheet 4 is arranged between the two groups of the terminal modules 3, and elastic arms 41 are arranged on both sides of the metal grounding sheet 4, and the elastic arms 41 are respectively overlapped with the first terminals 31 in the terminal modules 3 on both sides. When the elastic arms 41 are subjected to pressure, the overlapped portion 313 in the first terminal 31 can be in close contact with the elastic arms 41 to form a conductive path to ensure the stable transmission of the electrical signal. The bottom of the metal grounding sheet 4 is provided with abutment sheets 42, and the abutment sheets 42 are arranged in two rows and staggered on the metal grounding sheet 4.

[0036] In this embodiment, the metal grounding plate 4 is made of stainless steel, which has good electrical conductivity, high conductivity and good resistance. The metal grounding plate 4 is made by stamping, which has the characteristics of fast stamping speed and low cost. In other embodiments, the metal grounding plate 4 can also be made of copper, galvanized steel and other materials.

[0037] like Figure 3 , Figure 7 As shown, the fixing plate 5 is arranged below the metal grounding plate 4, and is used to fasten the metal grounding plate 4 to the mounting plate 33. The fixing plate 5 is provided with a first fixing groove 51, a second fixing groove 52 and a third fixing groove 53, the first fixing groove 51 and the second fixing groove 52 are arranged on both sides of the fixing plate 5 and are arranged alternately, the third fixing groove 53 is arranged above the fixing plate 5, the first fixing groove 51 is used to fix the elastic arm 41 and the first terminal 31, and the metal grounding plate 4 and the fixing plate 5 can be firmly connected together by inserting the elastic arm 41; the second fixing groove 52 is connected to the overlap portion 313 of the second terminal 32, providing stable support and positioning for the second terminal 32, ensuring that the connection between it and the metal grounding plate 4 is firm and reliable; the third fixing groove 53 is used to fix the abutting plate 42. When the grounding sheet and the terminal module 3 are assembled, the fixing plate 5 is pushed upwards so that the abutting piece 42 of the metal grounding sheet 4 is inserted into the third fixing groove 53 , thereby fastening the metal grounding sheet 4 to the first housing 1 through the fixing plate 5 .

[0038] Compared with using conductive plastic parts to connect the ground terminals together, using the metal grounding plate 4 to connect the ground terminals has the advantages of low cost, large tolerance range during assembly, high conductivity, good resistance effect, and can be used as a crosstalk barrier.

[0039] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A high-speed transmission connector, characterized in that: It includes a first shell, a second shell, a metal grounding sheet, a fixing plate and two groups of terminal modules, wherein a plug-in cavity is provided in the first shell, and a plurality of plug-in slots are provided on both sides of the plug-in cavity; the terminal module includes a first terminal and a second terminal and a mounting plate for fixing the first terminal and the second terminal, and the first terminal and the second terminal are plugged into the plug-in slots; the metal grounding sheet is arranged between the two groups of terminal modules, and elastic arms are provided on both sides of the metal grounding sheet, and the elastic arms are respectively overlapped with the first terminals in the terminal modules on both sides; the fixing plate is arranged below the metal grounding sheet, and is used to fasten the metal grounding sheet to the mounting plate.

2. The high-speed transmission connector according to claim 1, characterized in that: Abutment sheets are provided at the bottom of the metal grounding sheet. The abutment sheets are arranged in two rows and staggered on the metal grounding sheet.

3. The high-speed transmission connector according to claim 1, characterized in that: The fixing plate is provided with a first fixing groove, a second fixing groove and a third fixing groove, the first fixing groove and the second fixing groove are arranged on both sides of the fixing plate and are arranged alternately, and the third fixing groove is arranged above the fixing plate.

4. The high-speed transmission connector according to claim 1, characterized in that: The first terminal and the second terminal each include a plug-in portion, a fixing portion and a lap portion, the plug-in portion is curved and plug-connected to the plug-in slot, the fixing portion is connected to the mounting plate, and the lap portion is in contact with the elastic arm, so as to form an electrical connection between the terminal module and the metal grounding plate.

5. The high-speed transmission connector according to claim 4, characterized in that The first terminal is a ground terminal, and the second terminal is a signal terminal.

6. The high-speed transmission connector of claim 5, characterized in that The first terminals and the second terminals are arranged in pairs and spaced apart from each other.

7. The high-speed transmission connector of claim 1, characterized in that The outer wall of the first shell is provided with a plurality of grooves, and the second shell is provided with a protrusion, which is engaged and connected with the grooves.

8. The high-speed transmission connector of claim 1, characterized in that A buckling hole is provided on the first shell, and buckling teeth are provided on the outer side of the mounting plate, and the buckling teeth are buckled and connected with the buckling hole.

9. The high-speed transmission connector of claim 1, characterized in that The metal grounding plate is a stainless steel grounding plate.

10. The high-speed transmission connector according to claim 1, characterized in that: The first shell is provided with a positioning column and a fixing plate, and the positioning column and the fixing plate are respectively arranged at two ends of the first shell.

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