90-degree FAKRA improved metal rear cover

Abstract

The utility model discloses a 90-degree FAKRA improved metal rear cover, which comprises a shielding shell, a mounting hole is arranged on the shielding shell, a rear cover assembly is arranged in the mounting hole, the rear cover assembly comprises a first baffle plate, a connecting piece, a second baffle plate, a positioning block and a boss, the first baffle plate is fixedly connected to the top end of the connecting piece, the second baffle plate is fixedly connected to the bottom end of the connecting piece, and the positioning block is fixedly connected to the bottom end of the connecting piece. The second baffle is fixedly connected with a positioning block, and the lower surface of the second baffle is fixedly connected with a boss; a wire inlet hole is formed in the mounting hole, and a groove is formed in the position, corresponding to the wire inlet hole, of the lower surface of the boss; according to the rear cover assembly of the utility model, the boss is additionally arranged on the second baffle plate as the extension section to replace the original shielding layer of the wire end, so that the high-frequency performance is improved, and the positioning block is additionally arranged on the second baffle plate and is matched with the positioning groove in the shielding shell, so that a good positioning and guiding function can be realized; and installation errors of the rear cover assembly are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a 90-degree FAKRA improved metal back cover. Background Art

[0002] Fakra connector is a very popular RF connector, widely used in the automotive industry and other fields. With the development of automobiles and related industries, higher requirements and expectations are put forward for the high-frequency signal transmission and signal integrity of connectors. Solving the signal integrity problem of high-frequency signal transmission has become an important research direction for connector design. In the existing 90-degree Fakra connector, the coaxial line lacks a shielding layer close to the insulation layer in a section of the line in the shielding shell cavity, which makes it generally have a more obvious impedance high point in high-frequency testing, which has a greater impact on high-frequency performance. Therefore, a 90-degree FAKRA improved metal back cover is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a 90-degree FAKRA improved metal back cover to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a 90-degree FAKRA improved metal back cover, including a shielding shell, a mounting hole is opened on the shielding shell, a back cover assembly is installed in the mounting hole, the back cover assembly includes a first baffle, a connecting member, a second baffle, a positioning block and a boss, and the first baffle is fixedly connected to the top end of the connecting member, the second baffle is fixedly connected to the bottom end of the connecting member, the second baffle is fixedly connected to the positioning block, and the lower surface of the second baffle is fixedly connected to the boss.

[0005] Preferably, a wire entry hole is provided in the mounting hole, and a groove is provided on the lower surface of the boss at a position corresponding to the wire entry hole.

[0006] Preferably, the surface of the boss corresponding to the wire entry hole is a curved surface.

[0007] Preferably, a first-step groove is provided in the mounting hole at a position corresponding to the connecting piece.

[0008] Preferably, a positioning groove is provided on the first step groove at a position corresponding to the positioning block, and the positioning block is sleeved in the positioning groove.

[0009] Preferably, a second step groove is provided in the mounting hole at a position corresponding to the first baffle plate, and the first baffle plate is sleeved in the second step groove.

[0010] The 90-degree FAKRA improved metal back cover provided by the utility model has the following advantages: the back cover assembly of the utility model adds a boss on the second baffle as an extension section to replace the original shielding layer of the wire end, thereby improving the high-frequency performance, and the utility model adds a positioning block on the second baffle, which cooperates with the positioning groove in the shielding shell to achieve a good positioning and guiding function, thereby avoiding installation errors of the back cover assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is an exploded view of the overall main structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the shielding shell of the utility model;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the rear cover assembly of the utility model.

[0015] In the figure: 1, shielding shell; 11, mounting hole; 12, wire entry hole; 13, first step groove; 14, positioning groove; 15, second step groove; 2, back cover assembly; 21, first baffle; 22, connecting piece; 23, second baffle; 24, positioning block; 25, boss; 26, groove. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides an embodiment: a 90-degree FAKRA improved metal back cover, including a shielding shell 1, a mounting hole 11 is opened on the shielding shell 1, a back cover assembly 2 is installed in the mounting hole 11, the back cover assembly 2 includes a first baffle 21, a connecting member 22, a second baffle 23, a positioning block 24 and a boss 25, and the first baffle 21 is fixedly connected to the top of the connecting member 22, the second baffle 23 is fixedly connected to the bottom of the connecting member 22, the second baffle 23 is fixedly connected to the positioning block 24, and the lower surface of the second baffle 23 is fixedly connected to the boss 25, the mounting hole 11 is used to install the back cover assembly 2, the first baffle 21, the connecting member 22, the second baffle 23, the positioning block 24 and the boss 25 are an integrated structure, the connecting member 22 is used to install a waterproof sealing ring, the first baffle 21 and the second baffle 23 are used to limit the waterproof sealing ring, and the positioning block 24 is used to install the back cover assembly 2 Positioning, the boss 25 is an extension of the second baffle 23, which is used to replace the original shielding layer of the wire end; an entry hole 12 is opened in the mounting hole 11, and a groove 26 is opened at the position of the lower surface of the boss 25 corresponding to the position of the entry hole 12, and the entry hole 12 and the groove 26 are both used to accommodate signal lines; the surface of the boss 25 corresponding to the entry hole 12 is an arc surface, and the arc surface can better fit the inner wall of the entry hole 12; a first step groove 13 is opened at the position of the connecting piece 22 in the mounting hole 11, and the first step groove 13 is used to accommodate a waterproof sealing ring; a positioning groove 14 is opened on the first step groove 13 at the position corresponding to the positioning block 24, and the positioning block 24 is sleeved in the positioning groove 14, and the positioning groove 14 is used to cooperate with the positioning block 24 for positioning; a second step groove 15 is opened at the position of the first baffle 21 in the mounting hole 11, and the first baffle 21 is sleeved in the second step groove 15, and the second step groove 15 is used to accommodate the first baffle 21.

[0018] Working principle: When using the utility model, the back cover assembly 2 is inserted into the mounting hole 11 on the shielding shell 1, so that the positioning block 24 is inserted into the positioning groove 14, the second baffle 23 is inserted into the mounting hole 11, the connecting piece 22 is in the first step groove 13, the first baffle 21 is inserted into the second step groove 15, the boss 25 fits the inner wall of the mounting hole 11, and the groove 26 is aligned with the wire entry hole 12. The first baffle 21, the connecting piece 22, the second baffle 23, the positioning block 24 and the boss 25 are an integrated structure made of metal material. The positioning block 24 cooperates with the positioning groove 14 to position the installation of the back cover assembly 2. The boss 25 is an extension of the second baffle 23, so that it covers the wire end from which the shielding layer has been stripped to replace the original shielding layer of the wire end, thereby improving the high-frequency performance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. 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 various embodiments of the utility model.

Claims

1. 90 degree FAKRA improved metal back cover, including a shielding shell (1), characterized in that: The shielding shell (1) is provided with a mounting hole (11), and a rear cover assembly (2) is installed in the mounting hole (11). The rear cover assembly (2) comprises a first baffle (21), a connecting member (22), a second baffle (23), a positioning block (24) and a boss (25), wherein the first baffle (21) is fixedly connected to the top end of the connecting member (22), the second baffle (23) is fixedly connected to the bottom end of the connecting member (22), the second baffle (23) is fixedly connected to the positioning block (24), and the lower surface of the second baffle (23) is fixedly connected to the boss (25).

2. The 90-degree FAKRA improved metal back cover according to claim 1, characterized in that: A wire entry hole (12) is provided in the mounting hole (11), and a groove (26) is provided on the lower surface of the boss (25) at a position corresponding to the wire entry hole (12).

3. The 90-degree FAKRA improved metal back cover according to claim 2, characterized in that: The surface of the boss (25) corresponding to the wire entry hole (12) is a curved surface.

4. The 90-degree FAKRA improved metal back cover according to claim 2, characterized in that: A first-step groove (13) is provided in the mounting hole (11) at a position corresponding to the connecting piece (22).

5. The 90-degree FAKRA improved metal back cover according to claim 4, characterized in that: A positioning groove (14) is provided on the first-step groove (13) at a position corresponding to the positioning block (24), and the positioning block (24) is sleeved in the positioning groove (14).

6. The 90-degree FAKRA improved metal back cover according to claim 4, characterized in that: A second step groove (15) is provided in the mounting hole (11) at a position corresponding to the first baffle plate (21), and the first baffle plate (21) is sleeved in the second step groove (15).

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