CN219998642U - HDMI male connector - Google Patents

Abstract

The utility model discloses an HDMI male connector, which comprises a metal shell, a protective rubber shell, a plurality of metal terminals and a first circuit board. The protective rubber shell is arranged in the metal shell, and a plurality of terminal grooves are formed in the protective rubber shell; one ends of the plurality of metal terminals are respectively inserted into the plurality of terminal grooves; the first circuit board at least partially stretches into the metal shell, a plurality of bonding pads are arranged on the first circuit board, and the other ends of the plurality of metal terminals are connected with the plurality of bonding pads in a one-to-one correspondence manner. According to the technical scheme, the first circuit board at least partially stretches into the metal shell, so that the length of the metal terminal is reduced, the resistance of the metal terminal is reduced, and the signal attenuation in the transmission process is reduced.

Description

HDMI male connector

Technical Field

The utility model relates to the field of connector products, in particular to an HDMI male connector.

Background

With the continuous development of display technology, the video transmission rate is higher and higher, and the transmission rate of the current HDMI2.1 reaches 48Gbps. The performance requirements of connectors for video transmission are becoming higher and higher, so that not only are better materials and higher precision required, but also more severe process guarantees are required; therefore, the existing production mode is adopted, the production difficulty is greatly increased, the production cost is greatly increased, and the production yield is greatly reduced. Meanwhile, the production of the high-performance connector which completely meets the technical standard is difficult due to the limitations of material characteristics and production process.

The metal terminals for transmitting signals are generally made of alloy copper, which has much poorer conductive properties and high-frequency properties than pure copper due to mechanical performance requirements, but is too soft to be used alone. In the process of signal transmission, copper is excellent in conductivity, copper ions are more active, the phenomenon of ion migration in a high-frequency state is particularly remarkable, nonmetal materials such as plastic resin coated on a fixed metal terminal are generally required to have higher characteristic insulation resistance, plastic or resin is required to have low dielectric constant in a high-frequency state, certain hardness, flexibility, high temperature resistance and other characteristics are also required, materials meeting the characteristic requirements are few, are not easy to purchase and are relatively expensive, and severe requirements are required on processing and production equipment and processes, such as baking temperature, time, molding pressure and the like, so that the yield is reduced slightly carelessly. Even though the performance requirements are not easy to meet, in order to meet the performance and improve the yield, manufacturers adopt plating other metals on the surface of the metal terminal at the same time, so that the purpose is to improve the high-frequency conductive property of the metal terminal and inhibit the migration of copper ions besides surface oxidation resistance and contact resistance reduction of contact points, and the common plating layers comprise expensive rhodium-ruthenium alloy besides gold, silver, palladium and even the like. This can greatly enhance the performance of the connector, but is accompanied by an increase in the geometric magnification of the cost. Because of the large performance difference possibly caused by materials and processes, the high-performance connectors need to detect the performance one by one, the detection process needs to consume a long time, the consumed labor cost is high, and the manual detection mode does not have stability.

Disclosure of Invention

The main objective of the present utility model is to provide an HDMI male connector, which is capable of producing an HDMI male connector at low cost that can sufficiently meet the requirements of high speed and high performance.

In order to achieve the above object, the HDMI male connector according to the present utility model includes:

a metal housing;

the protective rubber shell is arranged in the metal shell, and a plurality of terminal grooves are formed in the protective rubber shell;

a plurality of metal terminals, one ends of which are respectively inserted into the terminal grooves;

the first circuit board at least partially stretches into the metal shell, a plurality of bonding pads are arranged on the first circuit board, and the other ends of the plurality of metal terminals are connected with the plurality of bonding pads in a one-to-one correspondence manner.

In an embodiment, the circuit board further comprises a fixing rubber shell, and the fixing rubber shell is sleeved on the first circuit board and the plurality of metal terminals so as to prop the metal terminals against the plurality of bonding pads.

In an embodiment, the electronic device further includes two second circuit boards, the plurality of metal terminals are respectively disposed on two opposite sides of the first circuit board, the two second circuit boards are respectively disposed on two opposite sides of the first circuit board, and are located between the fixing rubber shell and the plurality of metal terminals, and the fixing rubber shell is in pressure connection with the plurality of metal terminals through the second circuit boards.

In an embodiment, the first circuit board includes a first stage and a main body, the main body has first step surfaces located at two sides of the first step, the fixing rubber shell is sleeved on the first stage and abuts against the two first step surfaces, and the first step extends into the metal shell.

In an embodiment, the metal terminal has a connection section and an insertion section, the connection section is connected to the first circuit board, the insertion section extends into the terminal groove, and the length of the insertion section is smaller than the length of the metal housing.

In an embodiment, the main body further comprises a locking rubber shell, the main body comprises a second stage and a base, the base is provided with second step surfaces positioned on two sides of the second step, the locking rubber shell is sleeved on the second stage, the locking rubber shell is abutted against the fixing rubber shell, and the second step extends into the metal shell.

In an embodiment, the protection rubber shell comprises a core part and wing parts arranged on two sides of the core part, wherein the wing parts are provided with hooks, the locking rubber shell is provided with clamping parts matched with the hooks, and the hooks are clamped with the clamping parts.

In an embodiment, the inner sides of the wing parts are provided with rails, the two opposite sides of the fixed rubber shell are provided with protruding pieces, and the protective rubber shell is in sliding fit with the rails through the protruding pieces.

In an embodiment, the wing is provided with an abutment portion having an abutment surface against which the metal shell abuts.

In an embodiment, the locking rubber shell is provided with a limiting groove, and the metal shell is provided with a clamping part matched with the limiting groove.

According to the technical scheme, the first circuit board at least partially stretches into the metal shell, so that the length of the metal terminals is reduced, the equivalent resistance among the metal terminals is reduced, and the signal attenuation in the transmission process is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an HDMI male connector according to the present utility model;

fig. 2 is an exploded view of the HDMI male connector of the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 1 with the metal shell removed;

FIG. 4 is a schematic view of the structure of the protective and locking glue shells of FIG. 3;

FIG. 5 is a schematic view of the structure of FIG. 4 at another view angle;

FIG. 6 is a schematic view of the structure of FIG. 4 with the fixing glue shell removed;

FIG. 7 is a schematic diagram of a first circuit board;

FIG. 8 is a schematic diagram of the structure of FIG. 6 with a second circuit board removed;

FIG. 9 is a schematic view of the locking glue shell of FIG. 8 mated therewith;

FIG. 10 is a schematic view of the structure of a protective gel case;

FIG. 11 is a schematic structural view of a locking gel shell;

fig. 12 is a schematic structural diagram of the HDMI male connector according to the present utility model in a cross-sectional view;

fig. 13 is a schematic structural view of the HDMI male connector of the present utility model with the locking capsule removed;

FIG. 14 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 15 is a schematic view of the structure of fig. 9 at another view angle.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Metal shell	200	Protective rubber shell
300	Metal terminal	400	First circuit board
				500	Fixed rubber shell	600	Second circuit board
700	Locking rubber shell	110	Engagement portion
				210	Terminal groove	220	Core-in-package part
230	Wing part	231	Hook
				232	Rail track	233	Abutment portion
2331	Abutment surface	240	Notch groove
				310	Connecting section	320	Insertion section
410	Bonding pad	420	A first step section
				430	Main body	431	A first step surface
432	Second step section	433	Base part
				4331	Second step surface	510	Protruding piece
520	Raised portion	710	Clamping part
				720	Limiting groove	730	Socket groove

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides an HDMI male connector which is used for transmitting digitized video or audio information and the like.

The HDMI male connector provided by the utility model is an HDMI-A type wire-bonding male connector, and the structure can also be applied to HDMI-C/D type wire-bonding male connectors. The HDMI male connector of the utility model is applicable to transmission protocols of HDMI1.3, HDMI1.4, HDMI2.0, HDMI2.1 and HDMI connectors with higher speed requirements in the future.

In an embodiment of the present utility model, as shown in fig. 1, 2 and 8, the HDMI male connector includes a metal housing 100, a protective rubber housing 200, a plurality of metal terminals 300 and a first circuit board 400. The metal shell 100 is a hollow annular shell, and the metal shell 100 is sleeved on the protective rubber shell 200, so as to protect the protective rubber shell 200 and other components from damage and shield external interference.

Furthermore, the protective rubber shell 200 is made of plastic, the protective rubber shell 200 is provided with a plurality of terminal grooves 210, the terminal grooves 210 are generally square open through grooves, and one ends of the plurality of metal terminals 300 are respectively inserted into the plurality of terminal grooves 210. In addition, an insertion port is formed at one end of the protective rubber shell 200, so that the female socket and the HDMI male connector can be conveniently inserted. And the metal terminal 300 is partially exposed from the terminal groove 210 to the plug interface, so as to facilitate the contact between the metal terminal 300 and the signal transmission end.

In this embodiment, the first circuit board 400 at least partially extends into the metal housing 100, that is, the first circuit board 400 may partially extend into the metal housing 100 or may extend into the metal housing 100 entirely.

The first circuit board 400 is provided with a plurality of pads 410 (the pads 410 may be pure copper, and the high-frequency characteristic and the conductive characteristic of copper are much better than those of alloy copper, so that the high-frequency signal is transmitted through the pads 410), and the other ends of the plurality of metal terminals 300 are connected with the plurality of pads 410 in a one-to-one correspondence manner, and the connection manner may be soldering or abutting connection. Considering the requirements of elasticity and rigidity, the metal terminal 300 is made of alloy copper, and may be brass or phosphor bronze.

Other components may or may not be disposed on the first circuit board 400, and different components may be disposed on the first circuit board 400 according to different requirements of production, and the components may be resistors, capacitors, integrated circuits, or other components.

Specifically, the total number of the metal terminals 300 is 19, 9 metal terminals 300 can be arranged on one side of the first circuit board 400 during production, 10 metal terminals 300 can be arranged on the other side of the first circuit board 400, or 19 metal terminals 300 can be arranged on one side of the first circuit board 400 during production, and two metal terminals are arranged in a manner for adapting to different production requirements.

In addition, the signals on the plurality of metal terminals 300 are transmitted to the plurality of pads 410, and the radiation interference of the high frequency signal to other signals and the radiation interference of other signals to the high frequency signal can be improved by adjusting the distance between the plurality of pads 410 at the time of production. Holes may also be punched in the first circuit board (holes being punched between adjacent two pads) so that the dielectric constant may be adjusted as desired.

According to the technical scheme, the first circuit board 400 at least partially stretches into the metal shell 100, so that the length of the metal terminals 300 is reduced, the equivalent resistance between the metal terminals 300 is reduced, the signal attenuation is reduced, the HDMI male connector provided by the utility model can fully meet the requirements of high speed and high performance, the cost required by production is greatly reduced, and the yield of products is improved.

In another embodiment, referring to fig. 4 and 5, the HDMI male connector further includes a fixing rubber housing 500, the fixing rubber housing 500 has a substantially annular structure, the fixing rubber housing 500 is sleeved on the first circuit board 400 and the plurality of metal terminals 300, the fixing rubber housing 500 is used for protecting the plurality of metal terminals 300 and defining the relative positions of the plurality of metal terminals 300, so as to increase the push-pull tolerance between the metal terminals 300 and support the metal terminals 300 against the plurality of pads 410.

In a preferred embodiment, referring to fig. 3, 4 and 10, the fixing rubber housing 500 is provided with a protruding portion 520, and the protruding portion 520 and the fixing rubber housing may be integrally formed, or the protruding portion 520 and the fixing rubber housing may be connected together by screwing, or by adhesive connection, or by clamping. The protective rubber case 200 is formed with a notch groove, the protruding portion 520 may be engaged with the groove, and the protruding portion 520 may be inserted into the notch groove, so as to define the relative position of the fixed rubber case 500.

In still another embodiment, referring to fig. 2, 5 and 6, the HDMI male connector according to the present utility model further includes two second circuit boards 600, which are disposed in a substantially square shape. And a plurality of the metal terminals 300 are respectively disposed at opposite sides of the first circuit board 400. The two second circuit boards 600 are respectively disposed on opposite sides of the first circuit board 400 and located between the fixing rubber case 500 and the plurality of metal terminals 300, and therefore, the fixing rubber case 500 is crimped to the plurality of metal terminals 300 through the second circuit boards 600.

Alternatively, the second circuit board 600 may or may not be provided with the pads 410, and whether or not the pads 410 are provided on the second circuit board 600 may be determined according to the production requirements.

Referring to fig. 6 and 8, the metal terminal 300 has a connection section 310 and an insertion section 320, and the connection section 310 and the insertion section 320 may be integrally formed or welded together. In addition, the connection section 310 and the insertion section 320 may be connected in a straight line or in a step shape, and in this embodiment of the present utility model, the connection section 310 and the insertion section 320 are connected in a step shape, and in this regard, the metal terminals 300 are abutted against two adjacent sides of the first circuit board 400.

In a preferred embodiment, referring to fig. 3 and 4, the connection section 310 is connected to the first circuit board 400, the insertion section 320 extends into the terminal slot 210, and the length of the insertion section 320 is less than 0.6 times the length of the metal housing 100, so that the distance from the insertion section 320 to the connection section 310 is shorter, i.e. the distance from the metal terminal 300 to the first circuit board 400 after receiving the signal is shorter.

The connecting sections 310 at two sides of the first circuit board 400 are arranged in parallel, so that the connecting sections 310 are tightly attached to the first circuit board 400, the tail ends of the inserting sections 320 at two sides are arranged in a splayed shape, the metal terminals 300 are connected with the female base at the position with the minimum distance between the inserting sections 320, and then the distance between the inserting sections 320 at two sides is enlarged, so that the mutual interference between signals caused by the too close distance between the metal terminals 300 is prevented.

Specifically, pads are provided at the positions where the first circuit board 400 contacts the second circuit board 600 and the metal terminals 300, the pads are pre-coated with solder paste, and after the metal terminals 300 are heated, the solder paste is melted to complete the board-press welding between the metal terminals 300 and the first circuit board 400 and between the metal terminals 300 and the second circuit board 600.

In an embodiment, referring to fig. 5 and 7, the first circuit board 400 includes a first stage 420 and a main body 430, and the first stage 420 and the main body 430 are integrally formed. Wherein the main body 430 has first stepped surfaces 431 at both sides of the first stage 420. Furthermore, the fixing rubber case 500 is sleeved on the first stage 420 and abuts against the two first step surfaces 431, the fixing rubber case 500 is used for protecting the first stage 420 of the first circuit board 400, the first step surface 431 of the main body 430 defines the relative position of the fixing rubber case 500, and the first stage 420 extends into the metal case 100.

In an embodiment, referring to fig. 3, 7 and 8, the HDMI male connector further includes a locking rubber housing 700, where the locking rubber housing 700 is disposed in a ring shape, and the first circuit board 400 as described in the previous embodiment includes a main body 430, the main body 430 includes a second stage 432 and a base 433, and the second stage 432 and the base 433 are integrally formed.

The base 433 has second step surfaces 4331 located at two sides of the second step section 432, the locking glue case 700 is sleeved on the second step section 432, and is used for protecting the second step section 432 of the first circuit board 400, and the locking glue case 700 abuts against the fixing glue case 500 to define the relative position of the fixing glue case 500, and the second step section 432 extends into the metal case 100.

In still another embodiment, referring to fig. 10 to 12, the protective rubber shell 200 includes a core 220 and wing portions 230 disposed at two sides of the core 220, wherein the core 220 and the wing portions 230 at two sides may be integrally formed, or the core 220 and the wing portions 230 may be connected together by an adhesive, a screw connection, or a snap connection. And the plurality of terminal grooves 210 are provided on the sheathing part 220 for protecting the plurality of metal terminals 300, and the wing parts 230 for fixing and restraining the protective sheathing 200 on the fixing sheathing 500 and the locking sheathing 700.

It should be noted that, the wing portion 230 is provided with a hook 231, and the hook 231 may be a flat hook or a barb, and in this embodiment, is provided as a flat hook. The hooks 231 may be disposed toward the inner side of the wing 230 or toward the outer side of the wing 230, and in the embodiment of the present utility model, toward the outer side of the wing 230.

Furthermore, the locking glue case 700 has a locking portion 710 that mates with the hook 231, the locking portion 710 may be a platform or a groove, in this embodiment, a platform, and the locking portion 710 may be disposed inside the locking glue case 700 or outside the locking glue case 700, and in this embodiment, the locking portion 710 is disposed inside the locking glue case. The hook 231 is engaged with the engaging portion 710, thereby defining the relative positions of the protective rubber case 200 and the locking rubber case 700.

With continued reference to fig. 3, 10 and 15, after the locking glue shell 700 is sleeved on the second stage 432, two insertion slots 730 are formed on two sides of the locking glue shell, two wing portions 230 extend into the two insertion slots 730 and are clamped with the clamping portion 710 of the locking glue shell 700, and the insertion slots 730 are blocked by the wing portions 230.

In a preferred embodiment, referring to fig. 4 and 10, the protective rubber case 200 includes a wing 230, and a track 232 is disposed inside the wing 230, where two step surfaces of the track 232 are parallel. The two opposite sides of the fixing glue case 500 are provided with protruding members 510, where the protruding members 510 may be circular, square, or parallel up and down, and polygonal in the left and right directions. The protective rubber case 200 is slidably engaged with the rail 232 by the protrusion 510, so that the protective rubber case 200 can be slidably mounted on the fixed rubber case 500 through the wing 230.

In an embodiment, referring to fig. 13, the wing 230 is provided with an abutment portion 233, where the abutment portion is disposed on the outer side of the wing 230, and the abutment portion 233 may be a platform, a boss, or a groove. The contact portion 233 has a contact surface 2331, the metal case 100 contacts the contact surface 2331, and after the metal case 100 is fitted over the protective case 200, the position of the metal case bottom is defined at the contact surface 2331 so that the front end surface of the protective case 200 is not exposed to the metal case 100.

In an embodiment, referring to fig. 14, the surface of the locking glue case 700 is provided with a limiting groove 720, and the limiting groove 720 may be provided with one, two, or more limiting grooves, and additionally, the limiting groove 720 may be provided on one side of the locking glue case 700, or may be provided on different sides of the locking glue case 700. And the metal casing 100 is provided with the engaging portions 110 that are matched with the limiting grooves 720, and the engaging portions 110 may be provided with one or two or more engaging portions 110, so that the number of the engaging portions 110 is only required to be consistent with the number of the limiting grooves 720, and the positions of the engaging portions 110 and the limiting grooves 720 correspond to each other.

In the embodiment of the present utility model, two limiting grooves 720 are provided on one side of the locking glue case 700, two engaging portions 110 corresponding to the two limiting grooves 720 are provided on the metal case 100, and the engaging portions 110 are engaged in the limiting grooves 720, so as to limit the relative positions of the metal case 100 and the locking glue case 700, and aim at making the metal case 100 not easy to fall off.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. An HDMI male connector, comprising:

a metal housing (100);

the protective rubber shell (200), the protective rubber shell (200) is arranged in the metal shell (100), and a plurality of terminal grooves (210) are formed in the protective rubber shell (200);

a plurality of metal terminals (300), wherein one ends of the plurality of metal terminals (300) are respectively inserted into the plurality of terminal grooves (210);

the first circuit board (400), first circuit board (400) at least partly stretches into metal casing (100), be provided with many bonding pads (410) on first circuit board (400), the other end of a plurality of metal terminals (300) with many bonding pads (410) one-to-one connection.

2. The HDMI male connector of claim 1, further comprising a fixing rubber case (500), wherein the fixing rubber case (500) is sleeved on the first circuit board (400) and the plurality of metal terminals (300) to hold the metal terminals (300) against the plurality of pads (410).

3. The HDMI male connector of claim 2, further comprising two second circuit boards (600), a plurality of said metal terminals (300) being disposed on opposite sides of said first circuit board (400), respectively, said two second circuit boards (600) being disposed on opposite sides of said first circuit board (400), respectively, and being located between said fixing rubber case (500) and a plurality of said metal terminals (300), said fixing rubber case (500) being crimped with a plurality of said metal terminals (300) through said second circuit boards (600).

4. The HDMI male connector of claim 2, wherein the first circuit board (400) includes a first stage (420) and a main body (430), the main body (430) has first step surfaces (431) located at two sides of the first stage (420), the fixing rubber shell (500) is sleeved on the first stage (420) and abuts against two first step surfaces (431), and the first stage (420) extends into the metal housing (100).

5. The HDMI male connector of claim 2, wherein the metal terminal (300) has a connection section (310) and an insertion section (320), the connection section (310) being connected to the first circuit board (400), the insertion section (320) extending into the terminal groove (210), the insertion section (320) having a length smaller than the metal housing (100).

6. The HDMI male connector of claim 2, further comprising a locking glue shell (700), wherein the body (430) comprises a second stage (432) and a base (433), the base (433) has second stepped surfaces (4331) located at two sides of the second stage (432), the locking glue shell (700) is sleeved on the second stage (432), the locking glue shell (700) abuts against the fixing glue shell (500), and the second stage (432) extends into the metal shell (100).

7. The HDMI male connector according to claim 6, wherein the protective rubber housing (200) includes a core (220) and wing portions (230) disposed on both sides of the core (220), the wing portions (230) are provided with hooks (231), the locking rubber housing (700) has a clamping portion (710) mated with the hooks (231), and the hooks (231) are clamped with the clamping portion (710).

8. The HDMI male connector of claim 7, wherein the wing (230) is provided with a rail (232) inside, and the opposite sides of the fixing rubber housing (500) are provided with protrusions (510), and the protective rubber housing (200) is slidably fitted with the rail (232) through the protrusions (510).

9. The HDMI male connector of claim 7, wherein the wing (230) is provided with an abutment (233), the abutment (233) having an abutment surface (2331), the metal shell (100) abutting the abutment surface (2331).

10. The HDMI male connector of claim 6, wherein the locking rubber housing (700) is provided with a limiting groove (720), and the metal housing (100) is provided with a locking portion (110) that mates with the limiting groove (720).