Anti-loosening vehicle-gauge-level USB-AF cable structure

Abstract

The utility model discloses an anti-loosening vehicle-gauge-level USB-AF cable structure, which comprises a USB-AF interface, a cable connected with the USB-AF interface, an inner mold integrally formed at the rear end of the USB-AF interface and the front end of the cable, and an outer mold integrally formed outside the inner mold and wrapping the front end of the cable, and the front end of the USB-AF interface further protrudes out of the front end face of the outer mold. An elastic arm which can generate elastic deformation and is used for being fixedly assembled with a machine shell is integrally formed on the outer portion of the outer mold, and a buckling part is further integrally formed on the outer portion of the elastic arm. When the outer mold is assembled with a machine shell, the elastic arm is embedded into the machine shell along with the outer mold and is compressed, meanwhile, the buckling part outside the elastic arm slides into the positioning groove in the machine shell, and the compressed elastic arm forms outward elastic force, so that the buckling part is stably clamped in the positioning groove, the stability of the assembly structure is ensured, and the assembly efficiency is improved. And the problems of easy loosening and falling can be effectively prevented, so that the normal function application of the product is ensured.

Description

Technical field:

[0001] The utility model relates to the field of cable products, in particular to an anti-loosening automotive-grade USB-AF cable structure. Background technology:

[0002] With the development of technology, there are more and more types of electronic products, and more and more types of plugs for connecting electronic products. Data cables generally have only one male head and one female head. When it is necessary to convert to another type of plug, an adapter cable is required.

[0003] The Chinese utility model with patent number 201922486725.7 discloses an anti-interference USB connector (actually a transfer cable), including a connecting line, and an AF connector and an AM connector respectively connected to the two ends of the connecting line, the AF connector includes a connecting sleeve, a metal shell, a rubber core and a terminal, the rubber core includes a tail connecting part, a middle connecting part and a front connecting part connected in sequence, the rear section of the metal shell is sleeved in the connecting sleeve, the connecting sleeve includes an insulating rubber sleeve, an anti-interference metal sleeve and a first outer rubber sleeve, and also includes a magnetic sleeve and a second outer rubber sleeve, the magnetic sleeve is arranged in the second outer rubber sleeve, the middle part of the connecting line is sleeved in the magnetic sleeve and the connecting line is sleeved in the two ends of the second outer rubber sleeve, and the connector has good anti-interference performance.

[0004] When the anti-interference USB connector is used inside a car, the AF connector is installed in a plastic shell of the car mounting panel. However, the connecting sleeve (i.e., the outer mold) of the AF connector does not have a smooth curved or flat outer surface, and it cannot directly form a stable assembly with the plastic shell. It is easy to loosen and fall off, affecting the functional application of the product.

[0005] In view of this, the inventor proposes the following technical solution. Utility model content:

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an automotive-grade USB-AF cable structure that prevents loosening.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solution: the anti-loosening automotive-grade USB-AF cable structure includes a USB-AF interface, a cable connected to the USB-AF interface, an inner mold integrally formed at the rear end of the USB-AF interface and the front end of the cable, and an outer mold integrally formed on the outside of the inner mold and wrapping the front end of the cable, the front end of the USB-AF interface also protrudes outside the front end surface of the outer mold, the outer mold is integrally formed with an elastic arm that can generate elastic deformation and is used for fixed assembly with the casing, and the elastic arm is also integrally formed with a snap portion on the outside.

[0008] Furthermore, in the above technical solution, there are two elastic arms, which are distributed on both sides of the outer mold.

[0009] Furthermore, in the above technical solution, both ends of the elastic arm are integrally connected to the outer mold, and a gap is formed between the elastic arm and the outer mold.

[0010] Furthermore, in the above technical solution, one end of the elastic arm is integrally connected to the outer mold, and the other end serves as a free end, and a gap is formed between the elastic arm and the outer mold.

[0011] Furthermore, in the above technical solution, the elastic arms are distributed in an inclined state, so that the size of the interval gradually increases from the front end to the rear end.

[0012] Furthermore, in the above technical solution, the outer surface of the buckle portion is arc-shaped.

[0013] Furthermore, in the above technical solution, guiding inclined surfaces are arranged around the front end of the outer mold; and an arc-shaped guiding surface is also arranged at the front end of the elastic arm.

[0014] Furthermore, in the above technical solution, the outer surface of the outer mold is also provided with guide ribs for matching with the guide grooves in the casing.

[0015] Furthermore, in the above technical solution, a positioning protrusion is also provided on the outer surface of the outer mold, and the positioning protrusion is located beside the guide rib.

[0016] Furthermore, in the above technical solution, the front end opening of the metal shell of the USB-AF interface is formed with arc-shaped flanges for guiding around it.

[0017] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: when the utility model is assembled with the casing, the elastic arm is embedded in the casing along with the outer mold, and the elastic arm will be compressed. At the same time, the buckle part outside the elastic arm slides into the positioning groove inside the casing, and the compressed elastic arm forms an outward elastic force, so that the buckle part is stably held in the positioning groove, ensuring the stability of the assembly structure, and can effectively prevent the problem of easy loosening and falling off, thereby ensuring the normal application of the product function. Description of the drawings:

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the utility model assembled with the housing;

[0020] Figure 3 It is an exploded view of the utility model;

[0021] Figure 4 It is a front view of another outer mold shape of the utility model. Specific implementation method:

[0022] The utility model is further described below in conjunction with specific embodiments and drawings.

[0023] See Figure 1-4 As shown, an anti-loosening automotive-grade USB-AF cable structure includes a USB-AF interface 1, a cable 2, an inner mold 3 and an outer mold 4.

[0024] The cable 2 is connected to the USB-AF interface 1. Specifically, the multiple wires of the cable 2 are connected to the multiple terminals of the USB-AF interface 1 one by one and are fixed by welding to form a stable electrical conduction. The inner mold 3 is integrally formed at the rear end of the USB-AF interface 1 and the front end of the cable 2. It can completely cover the multiple wires of the cable 2. The cable 2 forms a stable connection with the USB-AF interface 1. The outer mold 4 is integrally formed outside the inner mold 3 and wraps the front end of the cable 2. The front end of the USB-AF interface 1 also protrudes outside the front end surface of the outer mold 4.

[0025] The utility model is applied to the interior of the automobile, specifically, it is fixedly assembled with the housing 5, that is, it is stably installed in the housing 5 inside the automobile. In order to improve the stability of the assembly structure, the following design is made: the outer mold 4 is integrally formed with an elastic arm 41 that can generate elastic deformation and is used for fixed assembly with the housing 5, and the elastic arm 41 is also integrally formed with a buckle portion 42 on the outside. When assembled with the housing 5, the elastic arm 41 is embedded into the housing 5 along with the outer mold 4, and the elastic arm 41 will be compressed. At the same time, the buckle portion 42 on the outside of the elastic arm 41 slides into the positioning groove inside the housing 5, and the compressed elastic arm 41 forms an outward elastic force, so that the buckle portion 42 is stably clamped in the positioning groove, ensuring the stability of the assembly structure, and can effectively prevent the problem of easy loosening and falling off, thereby ensuring the normal application of the product function.

[0026] In this embodiment, there are two elastic arms 41 distributed on both sides of the outer mold 4. The utility model has better assembly stability and a more secure locking structure that is less likely to loosen or fall off by elastically pressing the elastic arms 41 on the left and right sides against the housing 5.

[0027] The structure of the elastic arm 41 includes at least the following two structures:

[0028] The first structure: both ends of the elastic arm 41 are integrally connected to the outer mold 4, and a gap 40 is formed between the elastic arm 41 and the outer mold 4. The structure is extremely stable and has better elasticity.

[0029] The second structure: one end of the elastic arm 41 is integrally connected to the outer mold 4 , and the other end is a free end, and a gap is formed between the elastic arm 41 and the outer mold 4 .

[0030] As a preferred embodiment, this embodiment adopts the second structure mentioned above. The second structure is more stable and has better elasticity.

[0031] The elastic arms 41 are distributed in an inclined state, so that the size of the interval 40 gradually increases from the front end to the rear end, which can be better assembled with the housing and the buckle portion 42 can be stably installed in the positioning groove inside the housing 5 to form a stable assembly.

[0032] The outer surface of the buckle portion 42 is arc-shaped, which can better enter the positioning groove inside the casing 5, or when the elastic arm 41 is compressed from the outside to the inside and pulled out relative to the casing 5, it can quickly / smoothly leave the positioning groove inside the casing 5, making the operation smoother and avoiding the phenomenon of jamming.

[0033] The front end of the outer mold 4 is provided with guiding slopes 43 all around, and the guiding slopes 43 play a good role in plug-in guidance, making the operation more convenient; the front end of the elastic arm 41 is also provided with an arc-shaped guiding surface 411, and the arc-shaped guiding surface 411 plays a good role in plug-in guidance, making the operation more convenient.

[0034] The outer surface of the outer mold 4 is also provided with a guide rib 44 for matching with the guide groove in the casing 5. The guide rib 44 has a guiding and correcting function. When the utility model is inserted into the casing 5, the guide rib 44 is matched with the guide groove in the casing 5. As the utility model is continuously inserted into the casing 5, the guide rib 44 continuously slides into the guide groove, thereby ensuring that the direction of continuous insertion of the utility model is unique, so that the assembly position is corrected, which is beneficial for the buckle portion 42 outside the elastic arm 41 to slide smoothly into the positioning groove inside the casing 5. At the same time, the guide rib 44 also plays a certain limiting role, ensuring that the assembly structure of the utility model and the casing 5 is more stable.

[0035] The upper and lower surfaces of the outer mold 4 are both provided with two symmetrically distributed guide ribs 44 .

[0036] The outer surface of the outer mold 4 is also provided with a positioning protrusion 45, which is located beside the guide rib 44. The positioning protrusion 45 is used to hold the housing 5 in position, and further enhance the stability of the assembly structure.

[0037] The front end opening of the metal shell 11 of the USB-AF interface 1 is formed with arc-shaped flanges 111 for guidance around it, and the front end opening of the metal shell 11 corresponds to the insertion port 51 of the housing 5. The arc-shaped flange 111 has guiding properties, so that the front end opening of the metal shell 11 and the insertion port 51 of the housing 5 are more adaptable when docking.

[0038] To sum up, when the present invention is assembled with the casing 5, the elastic arm 41 of the present invention is embedded into the casing 5 along with the outer mold 4, and the elastic arm 41 will be compressed. At the same time, the buckle portion 42 outside the elastic arm 41 slides into the positioning groove inside the casing 5, and the compressed elastic arm 41 forms an outward elastic force, so that the buckle portion 42 is stably held in the positioning groove, ensuring the stability of the assembly structure, and can effectively prevent the problem of easy loosening and falling off, thereby ensuring the normal application of the product function.

[0039] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. An anti-loosening automotive grade USB-AF cable structure, comprising a USB-AF interface (1), a cable (2) connected to the USB-AF interface (1), an inner mold (3) integrally formed at the rear end of the USB-AF interface (1) and the front end of the cable (2), and an outer mold (4) integrally formed outside the inner mold (3) and wrapping the front end of the cable (2), wherein the front end of the USB-AF interface (1) further protrudes outside the front end surface of the outer mold (4), and is characterized in that: The outer mold (4) is integrally formed with an elastic arm (41) that can generate elastic deformation and is used for fixed assembly with the housing (5), and the elastic arm (41) is also integrally formed with a buckle portion (42) on the outer side.

2. The anti-loosening automotive-grade USB-AF cable structure according to claim 1, characterized in that: The number of the elastic arms (41) is two, and they are distributed on both sides of the outer mold (4).

3. The anti-loosening automotive-grade USB-AF cable structure according to claim 1, characterized in that: Both ends of the elastic arm (41) are integrally connected to the outer mold (4), and a gap (40) is formed between the elastic arm (41) and the outer mold (4).

4. The anti-loosening automotive-grade USB-AF cable structure according to claim 1, characterized in that: One end of the elastic arm (41) is integrally connected to the outer mold (4), and the other end serves as a free end, and a gap is formed between the elastic arm (41) and the outer mold (4).

5. The anti-loosening automotive-grade USB-AF cable structure according to claim 3, characterized in that: The elastic arms (41) are distributed in an inclined state, so that the size of the interval (40) gradually increases from the front end to the rear end.

6. The anti-loosening automotive-grade USB-AF cable structure according to claim 1, characterized in that: The outer surface of the buckle portion (42) is arc-shaped.

7. The anti-loosening automotive-grade USB-AF cable structure according to claim 1, characterized in that: The front end of the outer mold (4) is provided with guiding inclined surfaces (43) all around; the front end of the elastic arm (41) is also provided with an arc-shaped guiding surface (411).

8. An automotive-grade USB-AF cable structure that prevents loosening according to any one of claims 1 to 7, characterized in that: The outer surface of the outer mold (4) is also provided with guide ribs (44) for matching with the guide grooves in the housing (5).

9. The anti-loosening automotive-grade USB-AF cable structure according to claim 1, characterized in that: The outer surface of the outer mold (4) is also provided with a positioning protrusion (45), and the positioning protrusion (45) is located beside the guide rib (44).

10. The anti-loosening automotive-grade USB-AF cable structure according to claim 1, characterized in that: The front end opening of the metal shell (11) of the USB-AF interface (1) is formed with arc-shaped flanges (111) for guiding around the edges.

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