Cable connector and connector assembly

Abstract

The utility model discloses a cable connector and a connector assembly, belongs to the field of cable connectors, and discloses a grounding piece which is used for grounding the cable connector comprising a cable and a contact piece. The grounding piece comprises a main body part used for being electrically connected with the shielding layer of the cable, and a plurality of extension parts which extend from the main body part and are used for being electrically connected with the grounding units of the contact piece. According to the cable connector and the connector assembly, the grounding units of the contact pieces are electrically connected through the grounding pieces, and the cable connector and the connector assembly have excellent grounding and shielding effects in combination with the mode that the shielding layers of the cables are electrically connected with the grounding pieces.

Description

Technical Field

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

[0002] With the rapid development of economy and the rapid progress of science and technology, people have entered the digital age. In the digital age, every family has their own digital products, such as desktop computers, notebooks, mobile phones, mp3, mp4, DVD and digital TV. It is precisely because of the continuous development of the digital industry that the digital-related auxiliary industries have emerged and developed. Among them, connectors, as one of the basic components necessary for electrical connections, are widely used in aviation, aerospace, military equipment, automobiles, communications, computers, household appliances and other technical fields, becoming one of the pillar industries of basic electronic information products.

[0003] Cable connectors not only need to transmit a huge amount of data, but also need to transmit data at a higher transmission rate. In order to meet such requirements, the number of terminals, terminal arrangement density and operating frequency of cable connectors will increase accordingly, which can easily lead to transmission interference.

[0004] Therefore, there is an urgent need for a cable connector and a connector assembly with excellent grounding and shielding effects. Utility Model Content

[0005] The purpose of the utility model is to provide a cable connector and a connector assembly to overcome at least one of the above-mentioned defects in the prior art.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a grounding piece for grounding a cable connector including a cable and a contact piece. The grounding piece comprises a main body portion for electrically connecting to a shielding layer of the cable, and a plurality of extension portions extending from the main body portion for electrically connecting to a grounding unit of the contact piece.

[0008] Preferably, the extension portion includes a bending portion and a horizontal portion, the horizontal portion is connected to the main body portion through the bending portion, and the horizontal portion contacts the grounding unit of the contact piece.

[0009] Preferably, the horizontal portion is arranged parallel to the main body portion.

[0010] Preferably, the distance between the contact surface of the horizontal portion and the grounding unit of the contact piece and the contact surface of the main body portion and the shielding layer of the cable is D, where D=0.4-1.0 mm.

[0011] Preferably, the extension portion and the main body portion are integrally formed, and the extension portion is formed by extending and bending the main body portion.

[0012] Preferably, the plurality of extension portions are spaced apart and distributed along the length direction of the main body portion.

[0013] The utility model also provides a cable connector, including the above-mentioned grounding member, a cable 5, and a contact member 4, the cable 5 includes a conductor 52 for signal transmission and a shielding layer 51 covering the conductor 52, the contact member 4 includes a signal unit 42 and a grounding unit 41, the main body 1 of the grounding member is electrically connected to the shielding layer 51, the extension portion 2 is electrically connected to the grounding unit 41, and the conductor 52 of the cable 5 is electrically connected to the signal unit 42 of the contact member 4.

[0014] Preferably, the contact member 4 is a conductive terminal group, the grounding unit 41 is a grounding terminal, the signal unit 42 is a signal terminal, and / or the contact member 4 is a circuit board, the grounding unit 41 is a grounding pad, and the signal unit 42 is a signal pad.

[0015] Preferably, it further comprises a plastic body 3 , the contact member 4 is a circuit board, the contact member 4 is arranged in the plastic body 3 , and the cable 5 is electrically connected to the contact member 4 and passes through the plastic body 3 to the outside.

[0016] Preferably, it also includes a locking piece arranged on the top of the plastic body, and a pull strap for pulling the locking piece to achieve unlocking.

[0017] The utility model also provides a connector assembly, comprising the above-mentioned cable connector and a docking connector docking with the cable connector.

[0018] The beneficial effects of the utility model are:

[0019] 1. The grounding unit of the contact piece is electrically connected by a grounding piece, and the shielding layer of the cable is electrically connected to the grounding piece, which has an excellent grounding and shielding effect.

[0020] 2. Electrically connecting the grounding unit of the contact piece and the shielding layer of the cable together through the grounding piece can provide a conductive path between the grounding pads to control or suppress unwanted resonance occurring in the grounding pad of the circuit board during the operation of the cable connector, thereby improving signal integrity.

[0021] 3. By setting the horizontal part, the extension part and the grounding unit of the contact piece have a larger contact surface, ensuring effective conduction.

[0022] 4. The parallel horizontal portion and the main body portion can better fit the grounding unit of the parallel contact piece and the shielding layer of the cable, thereby improving the reliability of the electrical connection.

[0023] 5. Design the distance requirements of D to obtain good improved crosstalk performance.

[0024] 6. The one-piece extension and main body are easier to produce and the structure is more stable.

[0025] 7. The grounding device is electrically connected to the shielding layer of the cable, so that the cable can be grounded without setting a ground wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the utility model.

[0027] Figure 2 It is a main structural schematic diagram of the first embodiment of the utility model.

[0028] Figure 3 It is a schematic diagram of the three-dimensional coordination structure of the grounding member of the first embodiment of the utility model, the grounding pad of the circuit board and the shielding layer of the cable.

[0029] Figure 4 It is a schematic diagram of the main view of the matching structure of the grounding member of the first embodiment of the utility model, the grounding pad of the circuit board and the shielding layer of the cable.

[0030] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of A.

[0031] Figure 6 It is a three-dimensional structural schematic diagram of the second embodiment of the utility model.

[0032] Figure 7 It is a three-dimensional structural schematic diagram of the third embodiment of the utility model.

[0033] The markings in the accompanying drawings are: 1-main body, 2-extension part, 21-bending part, 22-horizontal part, 3-plastic body, 4-contact piece, 5-cable, 51-shielding layer, 52-conductor, 41-grounding unit, 42-signal unit, 6-locking piece, 7-pull strap, 8-docking connector. DETAILED DESCRIPTION

[0034] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0035] 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.

[0036] Embodiment 1:

[0037] like Figure 1-5 As shown, the grounding member provided in this embodiment is used for grounding a cable connector including a cable 5 and a contact member, and the grounding member includes a main body 1 for electrically connecting to the shielding layer 51 of the cable 5, and a plurality of extensions 2 extending from the main body 1 for electrically connecting to the grounding unit of the contact member. The grounding member is used to electrically connect the grounding unit 41 of the contact member 4, and the shielding layer 51 of the cable 5 is electrically connected to the grounding member, which has an excellent grounding shielding effect. Specifically, the grounding unit 41 of the contact member 4 and the shielding layer 51 of the cable 5 are electrically connected together through the grounding member, and a conductive path can be provided between the grounding unit 41 to control or suppress the undesirable resonance in the grounding unit 41 of the contact member 4 during the operation of the cable connector, thereby improving the signal integrity. The grounding member is electrically connected to the shielding layer 51 of the cable 5, so that the cable can achieve the grounding effect without setting a ground wire. There is no need to weld the ground wire during welding. Under the condition of the same wire number, the size of the cable is smaller than that of the cable with a ground wire, reducing the space occupation.

[0038] The extension portion 2 includes a bending portion 21 and a horizontal portion 22, the horizontal portion 22 is connected to the main body 1 through the bending portion 21, and the horizontal portion 22 contacts the grounding unit 41 of the contact member 4. The horizontal portion 22 is provided so that the extension portion 2 and the grounding unit 41 of the contact member 4 have a larger contact surface, thereby ensuring effective conduction.

[0039] The horizontal portion 22 is arranged in parallel with the main body 1. The parallel horizontal portion 22 and the main body 1 can better fit the parallel grounding unit 41 of the contact 4 and the shielding layer 51 of the cable 5, thereby improving the reliability of electrical connection.

[0040] The distance between the contact surface of the horizontal portion 22 and the grounding unit 41 of the contact member 4 (the lower surface of the horizontal portion 22) and the contact surface of the main body 1 and the shielding layer 51 of the cable 5 (the lower surface of the main body 1) is D, D = 0.4-1.0 mm, and 0.44 mm in this embodiment. The distance D is designed to obtain good crosstalk performance.

[0041] The extension part 2 is integrally formed with the main body 1, and the extension part 2 is formed by extending and bending the main body 1 to the left. A plurality of extension parts 2 are distributed at intervals along the length direction of the main body 1. The integrally formed extension part 2 and main body 1 are easier to produce and have a more stable structure.

[0042] Embodiment 2:

[0043] like Figure 6 As shown, this embodiment provides a cable connector, including the grounding member of the first embodiment, a cable 5, a plastic body 3, and a contact member 4, wherein the contact member 4 is disposed in the plastic body 3, and the cable 5 is electrically connected to the contact member 4 and passes out of the plastic body 3. The cable 5 includes a conductor 52 for signal transmission and a shielding layer 51 covering the conductor 52, and the contact member 4 includes a signal unit 42 and a grounding unit 41, the main body 1 of the grounding member is electrically connected to the shielding layer 51, the extension 2 is electrically connected to the grounding unit 41, and the conductor 52 of the cable 5 is electrically connected to the signal unit 42 of the contact member 4. The contact member 4 of this embodiment is a circuit board, the grounding unit 41 is a grounding pad, and the signal unit 42 is a signal pad. Of course, in other embodiments, the contact member 4 can also be a conductive terminal group, the grounding unit 41 is a grounding terminal, and the signal unit 42 is a signal terminal; the contact member 4 can also be a conductive terminal group and a circuit board, the grounding unit 41 can also be a grounding terminal and a contact pad, and the signal unit 42 can also be a signal terminal and a signal pad. In this embodiment, the ground pads of the circuit board are connected together through the grounding member and are electrically connected to the shielding layer 51 of the cable 5 to improve crosstalk.

[0044] The plastic body 3 further comprises a lock member 6 disposed on the top of the plastic body 3 and a drawstring 7 for pulling the lock member 6 to unlock the lock member. The unlocking operation of the lock member 6 is realized by pulling the drawstring 7, and the unlocking is convenient.

[0045] Embodiment three:

[0046] like Figure 7 As shown, this embodiment provides a connector assembly, including the cable connector of the second embodiment, and a docking connector 8 docked with the cable connector.

[0047] 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. A cable connector, characterized in that: It comprises a grounding member, a cable (5), and a contact member (4); The cable (5) comprises a conductor (52) for signal transmission and a shielding layer (51) covering the conductor (52); the contact piece (4) comprises a signal unit (42) and a grounding unit (41); The grounding member comprises a main body (1) and a plurality of extensions (2) extending from the main body (1); The main body (1) of the grounding member is electrically connected to the shielding layer (51), and the extension portion (2) is electrically connected to the grounding unit (41); The conductor (52) of the cable (5) is electrically connected to the signal unit (42) of the contact (4).

2. The cable connector according to claim 1, characterized in that: The extension portion (2) comprises a bent portion (21) and a horizontal portion (22); The horizontal portion (22) is connected to the main body (1) via a bent portion (21); The horizontal portion (22) contacts a grounding unit of the contact member.

3. The cable connector according to claim 2, characterized in that: The horizontal portion (22) is arranged parallel to the main body portion (1).

4. The cable connector according to claim 3, characterized in that: The distance between the contact surface of the horizontal portion (22) and the grounding unit of the contact piece and the contact surface of the main body portion and the shielding layer of the cable is D, where D=0.4-1.0 mm.

5. The cable connector according to claim 1, characterized in that: The extension portion (2) is integrally formed with the main body portion (1), and the extension portion (2) is formed by extending and bending the main body portion (1).

6. The cable connector according to claim 1, characterized in that: A plurality of the extension portions (2) are distributed at intervals along the length direction of the main body portion (1).

7. The cable connector according to claim 1, characterized in that: The contact member (4) is a conductive terminal group, the grounding unit (41) is a grounding terminal, and the signal unit (42) is a signal terminal; And / or the contact member (4) is a circuit board, the grounding unit (41) is a grounding pad, and the signal unit (42) is a signal pad.

8. The cable connector according to claim 7, characterized in that: Also includes a plastic body (3); The contact member (4) is a circuit board, and the contact member (4) is arranged in the plastic body (3); The cable (5) is electrically connected to the contact piece (4) and passes through the plastic body (3).

9. The cable connector according to claim 8, characterized in that: It also includes a locking piece (6) arranged on the top of the plastic body (3), and a drawstring (7) used for pulling the locking piece (6) to achieve unlocking.

10. A connector assembly, characterized in that: It comprises the cable connector according to any one of claims 1 to 9, and a docking connector (8) docked with the cable connector.

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