A connector male head structure

Abstract

The utility model provides a connector male head structure, including a male end plastic shell and a first signal terminal assembly, a second signal terminal assembly, a third signal terminal assembly and a fourth signal terminal assembly inserted on the male end plastic shell, a shielding sheet slot is arranged on the male end plastic shell above the first signal terminal assembly, and the shielding sheet slot is specifically a first shielding sheet slot, a second shielding sheet slot and a third shielding sheet slot separated from each other; the first shielding sheet slot, the second shielding sheet slot and the third shielding sheet slot are respectively provided with a first shielding sheet, a second shielding sheet and a third shielding sheet, and the first shielding sheet, the second shielding sheet and the third shielding sheet are all provided with at least two contact bosses contacting the ground terminal in the first signal terminal assembly. The utility model can effectively solve the technical problem of crosstalk phenomenon that is easy to generate when high-speed signals are transmitted between terminals in the prior art in actual use.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector male head structure. Background Art

[0002] A connector is a device that connects electrical terminals to form a circuit. Connectors can be used to connect wires, cables, printed circuit boards, and electronic components, and transmit data, power, and signals. Metal shielding sheets or conductive plastics are often used in connectors to improve signal return and isolate signal crosstalk. Connectors serve as a bridge for electronic signal communication between different electronic devices. With the increasing speed of signal transmission, the demand for high-speed connectors is also increasing. It is urgent to consider the mutual interference caused by the transmission of signals by the terminals in the connector when the electrical signals pass through the connector. By reducing the crosstalk problem between different channel terminals (differential pairs), the electrical signals can be more completely transmitted through high-speed connectors between multiple electronic devices.

[0003] As the amount of data storage continues to grow, the transmission rate requirements for connectors are also increasing; and the application of products is becoming more and more extensive, requiring a product to meet multiple high-frequency performance requirements at the same time. The existing U.2 connector can reach a transmission rate of 32Gbps, but the SI performance requirements are also increasing. The several PCIe channels in the existing U.2 connector are prone to crosstalk when used at the same time, and crosstalk is also prone to occur between the internal terminals (differential pairs) of the channel, affecting the overall performance of the connector. Utility Model Content

[0004] The utility model aims to provide a connector male head structure, which can effectively solve the technical problem of crosstalk phenomenon that is easy to occur when high-speed signals are transmitted between terminals in the prior art in actual use.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A connector male head structure, comprising a male end plastic shell and a first signal terminal assembly, a second signal terminal assembly, a third signal terminal assembly and a fourth signal terminal assembly inserted in the male end plastic shell, a shielding sheet groove is arranged on the male end plastic shell above the first signal terminal assembly, and the shielding sheet groove is specifically a first shielding sheet groove, a second shielding sheet groove and a third shielding sheet groove separated from each other;

[0007] The first shielding sheet slot, the second shielding sheet slot and the third shielding sheet slot are respectively provided with a first shielding sheet, a second shielding sheet and a third shielding sheet, and the first shielding sheet, the second shielding sheet and the third shielding sheet are each provided with at least two contact bosses contacting with the ground terminal in the first signal terminal assembly;

[0008] The first shielding sheet slot and the second shielding sheet slot are provided with interference bosses, and after the first shielding sheet and the second shielding sheet are inserted into the first shielding sheet slot and the second shielding sheet slot, the contact bosses are closely contacted with the grounding terminal in the first signal terminal assembly under the action of the interference bosses;

[0009] The male end plastic shell is provided with a fourth shielding sheet slot connected with the third shielding sheet slot, a fourth shielding sheet is provided in the fourth shielding sheet slot, the fourth shielding sheet is provided with a first protrusion that contacts the third shielding sheet and contacts the ground terminal in the third signal terminal assembly.

[0010] Wherein, two ends of the third shielding sheet are connected to the fourth shielding sheet groove through interference fit.

[0011] Furthermore, at least one groove is provided at both ends of the first shielding sheet, the second shielding sheet, the third shielding sheet and the fourth shielding sheet.

[0012] Preferably, a male head protrusion is provided on the male end plastic shell, and the second signal terminal assembly is inserted into the male end plastic shell and the end portion is located on the male head protrusion.

[0013] Furthermore, a supporting protrusion is arranged on the male end plastic shell, and a limiting groove is arranged on the supporting protrusion, and the limiting groove contacts the signal terminal in the second signal terminal assembly.

[0014] Among them, the male end plastic shell is provided with a plurality of mounting grooves for the signal terminals in the first signal terminal assembly, the second signal terminal assembly, the third signal terminal assembly and the fourth signal terminal assembly. The width of the end of the mounting groove is smaller than the width of the signal terminal. Notches are provided on both sides of the end of the signal terminal, so that the signal terminal forms a fault structure at the end. The two sides of the end of the signal terminal are inserted into the mounting groove, thereby realizing the fixation of the end of the signal terminal.

[0015] Furthermore, board lock grooves are provided on both sides of the male end plastic shell, and the board lock grooves are fixedly installed with the board lock in an interference fit manner.

[0016] Among them, the board lock includes a plug-in board and a mounting plate vertically arranged on the plug-in board. The plug-in board is inserted into the board lock slot. The mounting plate is provided with fixing holes. The fixing holes are tin-avoiding runway-shaped holes, which are convenient for welding on the customer's PCB board on the product.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the utility model, the shielding structure is set as three independent shielding plates, and the first shielding plate groove, the second shielding plate groove and the third shielding plate groove are respectively set. Glue can be added at the partition position, which can effectively improve the strength of the product and reduce the risk of deformation during injection molding; at the same time, the first shielding plate, the second shielding plate and the third shielding plate are each provided with at least two contact bosses in contact with the grounding terminal in the first signal terminal assembly, and under the action of the interference boss, the contact boss is in close contact with the grounding terminal in the first signal terminal assembly. The contact bosses are formed into multiple elastic support structures to achieve the purpose of multi-point contact, so that the first shielding plate, the second shielding plate and the third shielding plate are pressed into the first shielding plate groove, the second shielding plate groove and the third shielding plate groove, and then the first shielding plate, the second shielding plate and the third shielding plate are realized to achieve the purpose of shielding. At the same time, the fourth shielding plate is set to contact the grounding terminal in the third signal terminal assembly to achieve the purpose of shielding; the utility model can effectively reduce mutual interference between signal channels, thereby improving SI performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is an explosion diagram of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the male end plastic shell of the utility model.

[0023] Figure 4 For this utility model Figure 2 A partial enlarged schematic diagram in the middle.

[0024] Figure 5 For this utility model Figure 2 A partial enlarged schematic diagram of point B in the middle.

[0025] Reference numerals:

[0026] 101-male end plastic shell, 102-first signal terminal assembly, 103-second signal terminal assembly, 104-third signal terminal assembly, 105-fourth signal terminal assembly, 106-shielding plate slot, 107-first shielding plate slot, 108-second shielding plate slot, 109-third shielding plate slot, 110-first shielding plate, 111-second shielding plate, 112-third shielding plate, 113-contact boss, 114-fourth shielding plate slot, 115-fourth shielding plate, 116-first protrusion, 117-interference rib, 118-male head protrusion, 119-support protrusion, 120-limiting slot, 121-installation slot, 122-notch, 123-board lock slot, 124-board lock, 125-plug board, 126-installation plate. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying 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 embodiments of the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0031] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0033] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0034] See also Figure 1-Figure 5 , this embodiment discloses a connector male head structure, including a male end plastic shell 101 and a first signal terminal assembly 102, a second signal terminal assembly 103, a third signal terminal assembly 104 and a fourth signal terminal assembly 105 inserted on the male end plastic shell 101, and a shielding sheet groove 106 is arranged above the first signal terminal assembly 102 on the male end plastic shell 101, and the shielding sheet groove 106 is specifically a first shielding sheet groove 107, a second shielding sheet groove 108 and a third shielding sheet groove 109 that are separated from each other;

[0035] The first shielding sheet groove 107, the second shielding sheet groove 108 and the third shielding sheet groove 109 are respectively provided with a first shielding sheet 110, a second shielding sheet 111 and a third shielding sheet 112, and the first shielding sheet 110, the second shielding sheet 111 and the third shielding sheet 112 are each provided with at least two contact bosses 113 contacting with the ground terminal in the first signal terminal assembly 102;

[0036] Interference bosses are provided in the first shielding sheet slot 107 and the second shielding sheet slot 108. After the first shielding sheet 110 and the second shielding sheet 111 are inserted into the first shielding sheet slot 107 and the second shielding sheet slot 108, the contact bosses 113 are in close contact with the ground terminal in the first signal terminal assembly 102 under the action of the interference bosses.

[0037] The male end plastic shell 101 is provided with a fourth shielding sheet groove 114 which is connected with the third shielding sheet groove 109 , a fourth shielding sheet 115 is provided in the fourth shielding sheet groove 114 , the fourth shielding sheet 115 is provided with a first protrusion 116 which contacts the third shielding sheet 112 , and contacts the ground terminal in the third signal terminal assembly 104 .

[0038] In the present invention, the shielding structure is configured as three independent shielding sheets, and a first shielding sheet slot 107, a second shielding sheet slot 108 and a third shielding sheet slot 109 are respectively provided, and glue can be added at the partition position, which can effectively improve the strength of the product and reduce the risk of deformation during injection molding; at the same time, at least two contact bosses 113 in contact with the grounding terminal in the first signal terminal assembly 102 are provided on the first shielding sheet 110, the second shielding sheet 111 and the third shielding sheet 112, and under the action of the interference bosses, the contact bosses 113 are tightly in contact with the grounding terminal in the first signal terminal assembly 102. The contact bosses 113 are provided to form a plurality of elastic support structures to achieve the purpose of multi-point contact, so that the first shielding sheet 110, the second shielding sheet 111 and the third shielding sheet 112 are pressed into the first shielding sheet groove 107, the second shielding sheet groove 108 and the third shielding sheet groove 109 to achieve the first shielding sheet 110, the second shielding sheet 111 and the third shielding sheet 112 to achieve the shielding purpose. At the same time, the fourth shielding sheet 115 is provided to contact the ground terminal in the third signal terminal assembly 104 to achieve the shielding purpose. The utility model can effectively reduce the mutual interference between signal channels, thereby improving the SI performance.

[0039] The two ends of the third shielding sheet 112 are connected to the fourth shielding sheet groove 114 by interference fit.

[0040] Further, in actual use, at least one groove is provided at both ends of the first shielding sheet 110, the second shielding sheet 111, the third shielding sheet 112 and the fourth shielding sheet 115;

[0041] The first shielding sheet 110, the second shielding sheet 111, the third shielding sheet 112 and the fourth shielding sheet 115 are all installed by interference fit. In specific implementation, interference ribs 117 are also provided at both ends of the first shielding sheet 110, the second shielding sheet 111, the third shielding sheet 112 and the fourth shielding sheet 115 to achieve the purpose of interference fit and anti-slip.

[0042] The provided grooves can store plastic debris generated during interference fit.

[0043] The male end plastic shell 101 is provided with a male protrusion 118, and the second signal terminal assembly 103 is inserted into the male end plastic shell 101 and the end is located on the male protrusion 118. The male protrusion 118 can play a foolproof role to prevent the operator from inserting in the wrong direction and causing damage to the terminal in the connector.

[0044] In some embodiments, a supporting protrusion 119 is provided on the male end plastic shell 101, and a limiting groove 120 is provided on the supporting protrusion 119, and the limiting groove 120 contacts the signal terminal in the second signal terminal assembly 103; the provided limiting groove 120 can limit the signal terminal in the second signal terminal assembly 103, thereby reducing the risk of deformation of the signal terminal in the second signal terminal assembly 103.

[0045] To further explain, in this embodiment, the first signal terminal assembly 102 , the second signal terminal assembly 103 , the third signal terminal assembly 104 and the fourth signal terminal assembly 105 are all composed of a plurality of signal terminals.

[0046] The first signal terminal assembly 102 is specifically a SAS 40Pin signal terminal;

[0047] The second signal terminal assembly 103 is specifically a SATA 7Pin signal terminal;

[0048] The third signal terminal assembly 104 is specifically a SAS 6Pin signal terminal;

[0049] The fourth signal terminal assembly 105 is specifically a SATA15 Pin signal terminal.

[0050] Among them, in some preferred implementation cases, the male end plastic shell 101 is provided with a plurality of mounting grooves 121 for signal terminals in the first signal terminal assembly 102, the second signal terminal assembly 103, the third signal terminal assembly 104 and the fourth signal terminal assembly 105, the width of the end of the mounting groove 121 is smaller than the width of the signal terminal, and notches 122 are provided on both sides of the end of the signal terminal, so that the signal terminal forms a fault structure at the end, and the two sides of the end of the signal terminal are inserted into the mounting groove 121, thereby realizing the fixation of the end of the signal terminal.

[0051] This arrangement allows both sides of the end of the signal terminal to have a thin structure. When the signal terminal is inserted, since the width of the end of the mounting groove 121 is smaller than the width of the signal terminal, the thinner areas formed at the notch 122 on both sides of the signal terminal can be directly inserted into the side wall of the mounting groove 121 to fix the signal terminal; it is convenient for the terminal head to pierce into the male end plastic shell 101 for interference fit, thereby avoiding the problem of the front of the signal terminal warping after the product is overheated.

[0052] Wherein, board lock grooves 123 are arranged on both sides of the male end plastic shell 101, and the board lock grooves 123 are fixedly installed with board locks 124 in an interference fit manner.

[0053] Furthermore, the board lock 124 includes a plug-in board 125 and a mounting plate 126 vertically arranged on the plug-in board 125. The plug-in board 125 is inserted into the board lock slot 123. The mounting plate 126 is provided with fixing holes, which are tin-avoiding runway-shaped holes to facilitate welding of the customer's PCB board on the product.

[0054] The plate lock 124 can increase the plate-lifting force of the male end plastic shell 101 after the plate is mounted, thereby reducing the risk of the entire plate falling off after being subjected to external force.

[0055] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connector male head structure, comprising a male end plastic shell and a first signal terminal assembly, a second signal terminal assembly, a third signal terminal assembly and a fourth signal terminal assembly inserted into the male end plastic shell, characterized in that: A shielding sheet slot is provided on the male end plastic shell above the first signal terminal assembly, wherein the shielding sheet slot is specifically a first shielding sheet slot, a second shielding sheet slot and a third shielding sheet slot that are separated from each other; The first shielding sheet slot, the second shielding sheet slot and the third shielding sheet slot are respectively provided with a first shielding sheet, a second shielding sheet and a third shielding sheet, and the first shielding sheet, the second shielding sheet and the third shielding sheet are each provided with at least two contact bosses contacting with the ground terminal in the first signal terminal assembly; The first shielding sheet slot and the second shielding sheet slot are provided with interference bosses, and after the first shielding sheet and the second shielding sheet are inserted into the first shielding sheet slot and the second shielding sheet slot, the contact bosses are closely contacted with the grounding terminal in the first signal terminal assembly under the action of the interference bosses; The male end plastic shell is provided with a fourth shielding sheet slot connected with the third shielding sheet slot, a fourth shielding sheet is provided in the fourth shielding sheet slot, the fourth shielding sheet is provided with a first protrusion that contacts the third shielding sheet and contacts the ground terminal in the third signal terminal assembly.

2. A connector male head structure according to claim 1, characterized in that: Two ends of the third shielding sheet are connected to the fourth shielding sheet groove through interference fit.

3. A connector male head structure according to claim 1, characterized in that: At least one groove is disposed at both ends of the first shielding sheet, the second shielding sheet, the third shielding sheet and the fourth shielding sheet.

4. A connector male head structure according to claim 1, characterized in that: A male head protrusion is arranged on the male end plastic shell, and the second signal terminal assembly is inserted into the male end plastic shell with the end portion located on the male head protrusion.

5. The connector male head structure according to claim 1, characterized in that: A supporting protrusion is arranged on the male end plastic shell, and a limiting groove is arranged on the supporting protrusion. The limiting groove contacts the signal terminal in the second signal terminal assembly.

6. A connector male head structure according to any one of claims 1 to 5, characterized in that: The male end plastic shell is provided with a plurality of mounting grooves for the signal terminals in the first signal terminal assembly, the second signal terminal assembly, the third signal terminal assembly and the fourth signal terminal assembly. The width of the end of the mounting groove is smaller than the width of the signal terminal. Notches are provided on both sides of the end of the signal terminal so that the signal terminal forms a fault structure at the end. Both sides of the end of the signal terminal are inserted into the mounting grooves, thereby fixing the end of the signal terminal.

7. A connector male head structure according to any one of claims 1 to 5, characterized in that: Board lock grooves are arranged on both sides of the male end plastic shell, and the board lock grooves are fixedly installed with the board lock in an interference fit manner.

8. A connector male head structure according to claim 7, characterized in that: The board lock comprises a plug-in board and a mounting plate vertically arranged on the plug-in board. The plug-in board is plugged into the board lock slot, and a fixing hole is arranged on the mounting plate.

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