Electric connector

Abstract

The utility model discloses an electric connector, which belongs to the field of electric connectors and comprises a metal shell, a first plastic main body and a first conductive terminal group, the metal shell is arranged on the periphery of the first plastic main body, part of the first plastic main body is exposed out of the metal shell, and the first conductive terminal group is arranged in the first plastic main body. According to the electric connector provided by the utility model, through the arrangement of the metal shell, the strength of the electric connector is improved, and the first plastic main body is prevented from cracking when the electric connector is subjected to external force, vibration, impact and screw locking. And the first plastic main body is exposed, so that crosstalk can be effectively improved, especially far-end crosstalk can be improved, and signal performance can be improved. Therefore, through combination of strength improvement and crosstalk improvement, the quality of the electric connector is greatly improved, and the quality and performance of electric connection are improved.

Description

Technical Field

[0001] The utility model belongs to the field of electric connectors, and in particular relates to an electric connector. Background Art

[0002] Electrical connectors are indispensable electronic components in various electrical and electronic systems, and are widely used in aerospace, aviation, nuclear industry, weapons, ships, electronics, transportation, computers, communications, medical treatment, oil exploration and other industries. Their main function is to realize the transmission of electrical signals in the circuit, and they are the "nerve hub and contact point" of the electrical signal transmission system. Their quality directly affects the performance and quality of the product, both in terms of structure and signal transmission.

[0003] The main body of the current DA CEM connector is made of plastic material, which has the following problems during use:

[0004] 1. When the first plastic body of the connector is subjected to external force, vibration, or impact, cracks may occur in the first plastic body of the connector.

[0005] 2. When the screw holes on the first plastic body of the connector are tightened with screws, if the tightening force is large, the first plastic body may crack. Utility Model Content

[0006] The purpose of the utility model is to provide an electrical connector to overcome at least one of the above-mentioned defects in the prior art.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides an electrical connector, comprising a metal shell, a first plastic body, and a first conductive terminal group. The metal shell is arranged on the periphery of the first plastic body, a part of the first plastic body is exposed from the metal shell, and the first conductive terminal group is arranged inside the first plastic body.

[0009] Preferably, the side wall of the metal shell has an opening, so that a portion of the first plastic body is exposed from the metal shell.

[0010] Preferably, the first conductive terminal group includes a second plastic body and a signal terminal disposed in the second plastic body, and the opening includes a first hole, and an upper edge of the first hole is located above the second plastic body.

[0011] Preferably, the opening further includes a second hole, and the second hole is located above the first hole.

[0012] Preferably, there are a plurality of second holes, and the plurality of second holes are spaced apart and distributed along the length direction of the metal shell.

[0013] Preferably, the device further comprises a cable and an outer mold, wherein the cable is electrically connected to the first conductive terminal group, and the outer mold at least covers the electrical connection area between the first conductive terminal group and the cable.

[0014] Preferably, the cable outlet direction is perpendicular and / or parallel to the docking direction of the first conductive terminal group.

[0015] Preferably, the bottom of the metal shell has a first clamping part, the top of the outer mold has a second clamping part, the first clamping part cooperates with the second clamping part, the left and right ends of the outer mold each have a third clamping part, and the metal shell has a fourth clamping part that cooperates with the third clamping part.

[0016] Preferably, the bottom of the metal housing has a positioning column.

[0017] Preferably, a positioning sheet is provided at the bottom of the first plastic body.

[0018] Preferably, the first plastic body has a first docking interface, the metal shell has a second docking interface, and the size of the second docking interface is greater than or equal to the size of the first docking interface.

[0019] Preferably, both ends of the metal housing have mounting portions.

[0020] Preferably, it further comprises a second conductive terminal group, and the second conductive terminal group is arranged in the first plastic body or the metal shell.

[0021] Preferably, the second conductive terminal group includes a plurality of power terminals, and the plurality of power terminals are disposed on the first plastic body.

[0022] Preferably, the second conductive terminal group includes a third plastic body and a plurality of power terminals, the plurality of power terminals are arranged in the third plastic body, the interior of the metal shell has a first accommodating cavity and a second accommodating cavity that are independent of each other, the first plastic body is arranged in the first accommodating cavity, and the third plastic body is arranged in the second accommodating cavity.

[0023] The beneficial effects of the utility model are:

[0024] 1. The metal shell is provided to improve the strength of the electrical connector and prevent the first plastic body from cracking when the electrical connector is subjected to external force, vibration, impact, and screw tightening. In addition, the first plastic body is exposed to effectively improve crosstalk, especially far-end crosstalk, and improve signal performance. In this way, the combination of strength improvement and crosstalk improvement greatly improves the quality of the electrical connector and the quality and performance of the electrical connection.

[0025] 2. By setting the position of the first hole, the crosstalk effect is improved.

[0026] 3. By setting a plurality of second holes, the crosstalk effect is further improved on the basis of the first holes.

[0027] 4. Through the cooperation between the first clamping part and the second clamping part, and the cooperation between the third clamping part and the fourth clamping part, the connection stability between the outer mold and the metal shell is improved, thereby improving the electrical connection stability between the first conductive terminal group and the cable.

[0028] 5. By setting the positioning column and the positioning sheet, when the electrical connector of the present application is connected to the circuit board, a positioning function is played, and the positioning effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional explosion structure schematic diagram of the first embodiment of the utility model.

[0030] Figure 2 This is a positional relationship diagram of the first hole and the second plastic body in the first embodiment of the utility model.

[0031] Figure 3 It is a main structural schematic diagram of the first embodiment of the utility model.

[0032] Figure 4 It is a three-dimensional exploded structural schematic diagram of a metal shell and an outer mold according to a first embodiment of the utility model.

[0033] Figure 5 It is a three-dimensional exploded structural diagram of the metal shell and the first plastic body of the first embodiment of the utility model.

[0034] Figure 6 This is a comparison chart of SI data of the metal shell with and without holes in Example 1 of the present utility model.

[0035] Figure 7 It is a schematic diagram of the matching structure of the metal shell, the first plastic body, and the second conductive terminal group in the second embodiment of the utility model.

[0036] Figure 8 It is a schematic diagram of the matching structure of the first plastic body and the second conductive terminal group in the second embodiment of the present utility model.

[0037] Fig. 9 It is a schematic diagram of the matching structure of the metal housing and the second conductive terminal group in the third embodiment of the utility model.

[0038] Fig.10 It is a schematic diagram of the bottom view of the metal shell of the third embodiment of the utility model.

[0039] The marks in the accompanying drawings are: 1-metal shell, 2-first plastic body, 3-first conductive terminal group, 11-installing part, 31-second plastic body, 32-signal terminal, 4-opening, 41-first hole, 42-second hole, 5-cable, 6-outer mold, 12-first card part, 61-second card part, 62-third card part, 13-fourth card part, 14-positioning column, 7-positioning sheet, 21-first pair of interfaces, 15-second pair of interfaces, 16-first accommodating cavity, 17-second accommodating cavity, 8-second conductive terminal group, 81-power terminal, 82-third plastic body. DETAILED DESCRIPTION

[0040] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0041] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] Embodiment 1:

[0043] like Figures 1 to 5As shown, an electrical connector provided in this embodiment includes a metal shell 1, a first plastic body 2, a first conductive terminal group 3, a cable 5, and an outer mold 6. The first conductive terminal group 3 of this embodiment includes a second plastic body 31 and a plurality of signal terminals 32 arranged on the second plastic body 31, and the signal terminal 32 is a signal terminal. In other embodiments, it may also include a power terminal, and the power terminal and the signal terminal are arranged opposite to each other on the left and right. The power terminal can be arranged on the second plastic body 31 or on the first plastic body 2. The metal shell 1 is arranged on the periphery of the first plastic body 2. The first plastic body 2 has a first docking interface 21, and the metal shell 1 has a second docking interface 15, and the size of the second docking interface 15 is equal to the size of the first docking interface 21. In other embodiments, the size of the second docking interface 15 can also be larger than the size of the first docking interface 21. The first conductive terminal group 3 is arranged inside the first plastic body 2, and the left and right ends of the metal shell 1 have mounting portions 11, and the mounting portions 11 of this embodiment are mounting holes. The front and rear side walls of the metal shell 1 have openings 4 to realize that part of the first plastic body is exposed to the metal shell. The cable 5 is electrically connected to the first conductive terminal group 3, and the outer mold 6 at least covers the electrical connection area between the first conductive terminal group 3 and the cable 5. The cable 5 is connected to the first conductive terminal group 3. The cable 5 of this embodiment is connected forward. In other embodiments, the cable 5 can be connected downward or backward. The metal shell 1 is provided to improve the strength of the electrical connector and prevent the first plastic body 2 from cracking due to external force, vibration, impact, and screw tightening. And as Figure 6 As shown, the first plastic body is exposed, and the metal shell side wall opening 4 is set in this embodiment, which can effectively improve crosstalk, especially improve far-end crosstalk in the 0-24GHz frequency band and improve signal performance. In this way, the combination of strength improvement and crosstalk improvement greatly improves the quality of the electrical connector and improves the quality and performance of the electrical connection.

[0044] The opening 4 includes a first hole 41. The front and rear side walls of the metal housing 1 each have a first hole 41, and the upper edge of the first hole 41 is located above the second plastic body 31. By setting the position of the first hole 41, the crosstalk effect is improved.

[0045] The opening 4 further includes a plurality of second holes 42, which are located above the first hole 41 and are spaced apart along the length of the metal housing 1. By providing the plurality of second holes 42, the crosstalk effect is further improved on the basis of the first hole 41.

[0046] The bottom of the metal shell 1 has a first clamping portion 12, specifically, the bottom of the upper edge of the first hole 41 protrudes to form the first clamping portion 12, and the top of the outer mold 6 has a second clamping portion 61, and the first clamping portion 12 cooperates with the second clamping portion 61. In this embodiment, the first clamping portion 12 is a clamping block, and the second clamping portion 61 is a clamping slot. In other embodiments, the first clamping portion 12 can also be a clamping slot, and the second clamping portion 61 can be a clamping block. Through the cooperation of the first clamping portion 12 and the second clamping portion 61, the connection stability between the outer mold 6 and the metal shell 1 is improved, and then the electrical connection stability between the first conductive terminal group 3 and the cable 5 is improved.

[0047] The left and right ends of the outer mold 6 each have a third clamping portion 62, and the metal shell 1 has a fourth clamping portion 13 that cooperates with the third clamping portion 62. In this embodiment, the third clamping portion 62 is a clamping slot, and the fourth clamping portion 13 is a clamping block. In other embodiments, the third clamping portion 62 may be a clamping block, and the fourth clamping portion 13 may be a clamping slot. Through the cooperation between the third clamping portion 62 and the fourth clamping portion 13, the connection stability between the metal shell 1 and the outer mold 6 is further improved.

[0048] The left side of the bottom of the metal shell 1 is provided with a positioning column 14. The positioning column 14 plays a positioning role when the electrical connector of the present application is connected to the circuit board.

[0049] A positioning piece 7 is provided on the right side of the bottom of the first plastic body 2. The positioning piece 7 plays a positioning role when the electrical connector of the present application is connected to the circuit board, and cooperates with the positioning column 14 to achieve a better positioning effect.

[0050] Embodiment 2:

[0051] like Figures 7 and 8 As shown, the difference between this embodiment and the first embodiment is that:

[0052] The second conductive terminal group 8 includes a plurality of power terminals 81 . The plurality of power terminals 81 are disposed on the first plastic body 2 . The power terminals 81 are fisheye terminals.

[0053] Embodiment three:

[0054] like Figures 9 and 10 As shown, the difference between this embodiment and the first embodiment is that:

[0055] The metal housing 1 further includes a second conductive terminal group 8, which includes a third plastic body 82 and a plurality of power terminals 81, and the plurality of power terminals 81 are arranged in the third plastic body 82. The interior of the metal housing 1 has a first accommodating cavity 16 and a second accommodating cavity 17 that are independent of each other, the first plastic body 2 is arranged in the first accommodating cavity 16, and the third plastic body 82 is arranged in the second accommodating cavity 17. The power terminal 81 is a fisheye terminal. In this embodiment, the second conductive terminal group 8 is arranged independently of the first plastic body 2 and is installed separately in the second accommodating cavity 17. The second conductive terminal group 8 can be replaced according to different usage requirements, or when the second conductive terminal group 8 is damaged, it does not need to be replaced together with the first conductive terminal group 3, and the adaptability is wider.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrical connector, characterized in that: It comprises a metal shell (1), a first plastic body (2), and a first conductive terminal group (3); The metal shell (1) is arranged on the periphery of the first plastic body (2), and a portion of the first plastic body (2) is exposed from the metal shell (1); A first conductive terminal group (3) is arranged inside the first plastic body (2).

2. The electrical connector according to claim 1, characterized in that: The side wall of the metal shell (1) has an opening (4) to enable a portion of the first plastic body (2) to be exposed from the metal shell (1).

3. The electrical connector according to claim 2, wherein: The first conductive terminal group (3) comprises a second plastic body (31) and a signal terminal (32) arranged on the second plastic body (31); The opening (4) comprises a first hole (41), and the upper edge of the first hole (41) is located above the second plastic body (31).

4. The electrical connector according to claim 3, characterized in that: The opening (4) further comprises a second hole (42), wherein the second hole (42) is located above the first hole (41).

5. The electrical connector according to claim 4, characterized in that: There are a plurality of second holes (42), and the plurality of second holes (42) are distributed at intervals along the length direction of the metal shell (1).

6. The electrical connector according to claim 1, characterized in that: It also includes a cable (5) and an outer mold (6); The cable (5) is electrically connected to the first conductive terminal group (3), and the outer mold (6) at least covers the electrical connection area between the first conductive terminal group (3) and the cable (5).

7. The electrical connector according to claim 6, characterized in that: The outgoing direction of the cable (5) is perpendicular and / or parallel to the docking direction of the first conductive terminal group (3).

8. The electrical connector according to claim 6, characterized in that: The bottom of the metal shell (1) has a first clamping portion (12), the top of the outer mold (6) has a second clamping portion (61), and the first clamping portion (12) cooperates with the second clamping portion (61); The left and right ends of the outer mold (6) both have a third clamping portion (62), and the metal shell (1) has a fourth clamping portion (13) that cooperates with the third clamping portion (62).

9. The electrical connector according to claim 1, wherein: The bottom of the metal housing (1) is provided with a positioning column (14).

10. The electrical connector according to claim 1, wherein: A positioning sheet (7) is provided at the bottom of the first plastic body (2).

11. The electrical connector according to claim 1, characterized in that: The first plastic body (2) has a first docking interface (21), the metal shell (1) has a second docking interface (15), and the size of the second docking interface (15) is greater than or equal to the size of the first docking interface (21).

12. The electrical connector according to claim 1, characterized in that: Both ends of the metal shell (1) are provided with mounting portions (11).

13. The electrical connector according to claim 1, characterized in that: Also includes a second conductive terminal group (8); The second conductive terminal group (8) is arranged in the first plastic body (2) or the metal shell (1).

14. The electrical connector according to claim 13, characterized in that: The second conductive terminal group (8) comprises a plurality of power terminals (81), and the plurality of power terminals (81) are arranged on the first plastic body (2).

15. The electrical connector according to claim 13, characterized in that: The second conductive terminal group (8) comprises a third plastic body (82) and a plurality of power terminals (81), wherein the plurality of power terminals (81) are arranged on the third plastic body (82); The metal shell (1) has a first accommodating cavity (16) and a second accommodating cavity (17) which are independent of each other; The first plastic body (2) is disposed in the first accommodating cavity (16), and the third plastic body (82) is disposed in the second accommodating cavity (17).

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