A beading prevention HDMI connector

Abstract

The utility model discloses a kind of burr-proof HDMI connectors, including shielding shell, insulating body and terminal group, the terminal group is set on insulating body, and the shielding shell is covered in insulating body outside;The insulating body includes base and tongue plate formed by the integral forward extension of base front end, and the front end of the terminal group is exposed to the front end of tongue plate;The upper side or lower side of the front end of the tongue plate is concave and provided with shrinkage groove backwards, and the shrinkage groove extends to the upper surface or lower surface of the front end of tongue plate;The side surface of the front end of the terminal group is exposed in shrinkage groove;By this, burr is not easy to produce in breaking process, the quality of product is guaranteed, and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to an anti-burr HDMI connector. Background Technology

[0002] An HDMI connector, or High Definition Multimedia Interface, is a fully digital video and audio transmission interface that can send uncompressed audio and video signals. HDMI connectors are used in devices such as set-top boxes, DVD players, personal computers, televisions, game consoles, integrated amplifiers, digital audio systems, and televisions. HDMI can transmit audio and video signals simultaneously, and because audio and video signals use the same cable, it greatly simplifies system wiring installation.

[0003] Existing HDMI connectors typically include an insulating body, multiple conductive terminals molded onto the insulating body, and a shielding shell covering the insulating body. Each conductive terminal includes a contact portion, a connecting portion, and a soldering portion connected sequentially from front to back. The contact portion protrudes from a tongue plate at the front end of the insulating body, the connecting portion is fixed to the insulating body, and the soldering portion protrudes from the insulating body. During manufacturing...

[0004] When conductive terminals are formed on the insulating body, they are formed together with the material strip. Therefore, the material strip and conductive terminals need to be broken off and separated later. However, since the front end of the tongue plate of the existing insulating body is flat, the material strip is prone to scratching the front end of the tongue plate of the insulating body during the breaking process. This causes the front end of the tongue plate of the insulating body to be easily scratched with burrs, which affects the quality of the product. Moreover, the burrs need to be removed manually afterward, which increases the cost.

[0005] Therefore, a new technology needs to be developed to solve the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide an anti-burr HDMI connector that is less prone to burrs during the breakage process, thus ensuring product quality and reducing production costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An anti-burr HDMI connector includes a shielding shell, an insulating body, and a terminal group. The terminal group is disposed on the insulating body, and the shielding shell covers the insulating body. The insulating body includes a base and a tongue plate integrally extended forward from the front end of the base. The front end of the terminal group is exposed at the front end of the tongue plate. A recessed groove is provided on the upper or lower side of the front end of the tongue plate, and the recessed groove extends to the upper or lower surface of the front end of the tongue plate. One side surface of the front end of the terminal group is exposed in the recessed groove.

[0009] As a preferred embodiment, the retraction groove is recessed on the upper side of the front end of the tongue plate, the retraction groove extends upward to the upper surface of the front end of the tongue plate, the retraction groove extends in the left-right direction, and the upper surface of the front end of the terminal group is exposed in the retraction groove.

[0010] As a preferred embodiment, the front end face of the tongue plate is recessed in the middle and has a relief groove extending in the left-right direction. The retraction groove is connected to the relief groove, and the front end face of the terminal group is exposed in the relief groove.

[0011] As a preferred embodiment, the terminal group includes a plurality of terminals arranged side by side with uniform spacing in the left-right direction. The front end faces of the plurality of terminals are exposed in the relief groove. The front ends of two adjacent terminals are separated by a partition wall located in the relief groove. The upper surface of the partition wall is exposed in the retraction groove.

[0012] As a preferred embodiment, the retraction groove has a rear groove wall that extends obliquely upward from front to back, the rear groove wall extending in the left-right direction, and an arc-shaped extension portion provided on the upper surface of the front end of the tongue plate, the arc-shaped extension portion extending in the left-right direction, the arc-shaped extension portion extending backward and upward from the upper side of the rear groove wall.

[0013] As a preferred embodiment, the contact portion of the terminal group is exposed on the lower surface of the tongue plate, and the solder portion of the terminal group extends beyond the lower rear end of the base.

[0014] As a preferred embodiment, the upper and lower surfaces of the base are respectively provided with an upper groove and a lower groove, and the upper and lower surfaces of the connecting portion of the terminal group are exposed in the upper groove and the lower groove, respectively.

[0015] As a preferred embodiment, the upper surface of the tongue plate is recessed with a plurality of slots, and the upper surface of the contact portion of the terminal group is exposed in the corresponding slots.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly involves recessing a retraction groove on the upper or lower side of the front end of the tongue plate, extending the retraction groove to the corresponding upper or lower surface of the front end of the tongue plate, exposing one side surface of the front end of the terminal group in the retraction groove. In this way, when the terminal and the strip break, the strip breaks towards the retraction groove, and the retraction groove can provide space for the strip, thereby avoiding the strip from scraping the front end of the tongue plate. This makes it less likely to produce burrs during the breaking process, ensuring product quality, reducing production costs, and making it more conducive to the breaking of the strip, so that the breaking direction of the strip can only be towards the retraction groove, which is convenient for breaking. In addition, by making the retraction groove have a rear groove wall, and providing an arc-shaped extension on the upper surface of the front end of the tongue plate, the arc-shaped extension extends backward and upward from the upper side of the rear groove wall. In this way, the arc-shaped extension is more conducive to the mating of the connector.

[0017] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model from another angle;

[0020] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0021] Figure 4 yes Figure 3 Another angle view of the structure shown;

[0022] Figure 5 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0023] Figure 6 This is a partial structural cross-sectional schematic diagram of an embodiment of the present utility model;

[0024] Figure 7 This is a partial structural schematic diagram of an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached diagram:

[0026] 10. Shielding shell 11. Connecting cavity

[0027] 12. First pin 121. Fixed through hole

[0028] 13. Second pin; 20. Insulating body

[0029] 21. Base 211, upper groove

[0030] 212, Lower groove; 22, Tongue plate

[0031] 221. Slot 222. Retraction groove

[0032] 223. Rear side wall; 224. Arc-shaped extension.

[0033] 225. Leaving groove; 226. Partition wall

[0034] 30. Terminal group; 31. Contact portion

[0035] 32. Welded part; 33. Connecting part

[0036] 34. Terminal. Detailed Implementation

[0037] Please refer to Figures 1 to 7 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0038] An anti-burr HDMI connector includes a shielding shell 10, an insulating body 20, and a terminal group 30. The terminal group 30 is embedded in the insulating body 20, and the shielding shell 10 covers the insulating body 20. The insulating body 20 includes a base 21 and a tongue plate 22 integrally extended forward from the front end of the base 21. The front end of the terminal group 30 is exposed at the front end of the tongue plate 22. The front end of the shielding shell 10 forms a mating cavity 11, and the tongue plate 22 extends into the mating cavity 11.

[0039] The contact portion 31 of the terminal group 30 is exposed on the lower surface of the tongue plate 22, and the welding portion 32 of the terminal group 30 extends out of the rear lower end of the base 21. The contact portion 31 and the welding portion 32 are integrally connected by a connecting portion 33, which is embedded in the base 21.

[0040] The upper and lower surfaces of the base 21 are respectively provided with an upper groove 211 and a lower groove 212. The upper and lower surfaces of the connecting part 33 of the terminal group 30 are exposed in the upper groove 211 and the lower groove 212, respectively. The upper surface of the tongue plate 22 is provided with a plurality of slots 221. The upper surface of the contact part 31 of the terminal group 30 is exposed in the corresponding slots 221. In this way, the combination design of the upper groove 211, the lower groove 212 and the slots 221 is beneficial to the heat dissipation of the terminal 34.

[0041] The shielding shell 10 has first pins 12 stamped outward on both the left and right sides of the front end. The first pins 12 have fixing through holes 121. The shielding shell 10 has second pins 13 on both the left and right sides of the rear end. Thus, the combination of the first pins 12, fixing through holes 121 and second pins 13 makes it easier to install.

[0042] The tongue plate 22 has a recessed groove 222 on the upper or lower side of its front end, which extends to the upper or lower surface of the front end of the tongue plate 22; one side surface of the front end of the terminal group 30 is exposed in the recessed groove 222. In this embodiment, the retraction groove 222 is recessed on the upper side of the front end of the tongue plate 22. The retraction groove 222 extends upward to the upper surface of the front end of the tongue plate 22. The retraction groove 222 extends in the left-right direction. The upper surface of the front end of the terminal group 30 is exposed in the retraction groove 222. In this way, when the terminal 34 breaks with the strip, the strip breaks towards the retraction groove 222. The retraction groove 222 can provide space for the strip, thereby avoiding the strip from scraping the front end of the tongue plate 22. This makes it less likely to produce burrs during the breaking process, ensuring product quality, reducing production costs, and making it more conducive to the breaking of the strip. The breaking direction of the strip can only be towards the retraction groove 222, which is convenient for breaking.

[0043] The retraction groove 222 has a rear side groove wall 223 that extends obliquely upward from front to back. The rear side groove wall 223 extends in the left and right direction. The upper surface of the front end of the tongue plate 22 is provided with an arc-shaped extension 224 that extends in the left and right direction. The arc-shaped extension 224 extends backward and upward from the upper side of the rear side groove wall 223. In this way, the arc-shaped extension 224 can facilitate the mating of the connector.

[0044] The front end face of the tongue plate 22 is recessed in the middle and a relief groove 225 is provided. The relief groove 225 extends in the left and right direction. The retraction groove 222 is connected to the relief groove 225. The front end face of the terminal group 30 is exposed in the relief groove 225.

[0045] In this embodiment, the terminal group 30 includes a plurality of terminals 34 arranged side by side with uniform spacing in the left-right direction. Each terminal 34 includes the contact portion 31, the connecting portion 33 and the welding portion 32. The front end faces of the plurality of terminals 34 are exposed in the relief groove 225. The front ends of two adjacent terminals 34 are separated by a partition wall 226. The partition wall 226 is located in the relief groove 225, and the upper surface of the partition wall 226 is exposed in the retraction groove 222.

[0046] In summary, the key design feature of this invention lies in the rearward recess of a retraction groove on the upper or lower side of the front end of the tongue plate, extending to the corresponding upper or lower surface of the front end of the tongue plate. This exposes one side of the front end of the terminal assembly within the retraction groove. Consequently, when the terminal and the strip break, the strip breaks towards the retraction groove, providing space for the strip and preventing it from scraping against the front end of the tongue plate. This reduces the likelihood of burrs during breakage, ensuring product quality, reducing production costs, and facilitating strip breakage by ensuring the breakage direction is solely towards the retraction groove. Furthermore, by providing a rear wall to the retraction groove and an arc-shaped extension on the upper surface of the front end of the tongue plate, extending rearward and upward from the upper side of the rear wall, the arc-shaped extension further facilitates connector mating.

[0047] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A burr-resistant HDMI connector, comprising a shielding shell, an insulating body, and a terminal group, wherein the terminal group is disposed on the insulating body, and the shielding shell covers the insulating body; the insulating body includes a base and a tongue plate integrally extending forward from the front end of the base, and the front end of the terminal group is exposed at the front end of the tongue plate; characterized in that: The tongue plate has a recessed groove on its upper or lower side at the front end, which extends to the upper or lower surface of the front end of the tongue plate; one side surface of the front end of the terminal group is exposed in the recessed groove.

2. The anti-burr HDMI connector according to claim 1, characterized in that: The retraction groove is recessed on the upper side of the front end of the tongue plate, the retraction groove extends upward to the upper surface of the front end of the tongue plate, the retraction groove extends in the left and right direction, and the upper surface of the front end of the terminal group is exposed in the retraction groove.

3. The anti-burr HDMI connector according to claim 2, characterized in that: The tongue plate has a recessed relief groove in the middle of its front end face, which extends in the left-right direction. The retraction groove is connected to the relief groove, and the front end face of the terminal group is exposed in the relief groove.

4. The anti-burr HDMI connector according to claim 3, characterized in that: The terminal group includes a plurality of terminals arranged side by side at uniform intervals along the left-right direction. The front end faces of the plurality of terminals are exposed in the relief groove. The front ends of two adjacent terminals are separated by a partition wall located in the relief groove. The upper surface of the partition wall is exposed in the retraction groove.

5. The anti-burr HDMI connector according to claim 2, characterized in that: The retraction groove has a rear side groove wall that extends obliquely upward from front to back, and the rear side groove wall extends in the left and right direction. The upper surface of the front end of the tongue plate is provided with an arc-shaped extension, which extends in the left and right direction and extends backward and upward from the upper side of the rear side groove wall.

6. The anti-burr HDMI connector according to claim 1, characterized in that: The contact portion of the terminal group is exposed on the lower surface of the tongue plate, and the solder portion of the terminal group extends beyond the lower rear end of the base.

7. The anti-burr HDMI connector according to claim 1, characterized in that: The upper and lower surfaces of the base are respectively recessed with an upper groove and a lower groove, and the upper and lower surfaces of the connecting part of the terminal group are exposed in the upper groove and the lower groove, respectively.

8. The anti-burr HDMI connector according to claim 1, characterized in that: The upper surface of the tongue plate is recessed with several slots, and the upper surface of the contact portion of the terminal group is exposed in the corresponding slots.

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