CN211907887U

CN211907887U - Interface protector

Info

Publication number: CN211907887U
Application number: CN202020708038.5U
Authority: CN
Inventors: 黄小伟; 周晶晶
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-11-10
Anticipated expiration: 2030-04-30

Abstract

The embodiment of the utility model discloses interface protector. The interface protector includes, for example: a housing; an interface protector body comprising: the first interface is arranged at the first end of the shell and comprises a first pin group exposed out of the shell, and the first pin group comprises a first grounding pin; a second interface disposed at a second end of the housing opposite to the first end and including a second pin group exposed out of the housing, the second pin group including a second ground pin; the circuit board is accommodated in the shell, is connected between the first interface and the second interface, and comprises a signal grounding end and a shell grounding end; the first grounding pin, the signal grounding end and the shell grounding end are connected with each other, the second grounding pin, the signal grounding end and the shell grounding end are connected with each other, and the shell is connected with the shell grounding end. The utility model discloses interface protector can solve ESD electrostatic interference's problem.

Description

Interface protector

Technical Field

The utility model relates to a connector technical field especially relates to an interface protector.

Background

At present, in order to prevent the interface of the device from being damaged due to violent plugging and unplugging, so that a user needs to maintain the interface of the device, the interface protector is widely applied to the technical field of connectors to protect the interface of the device, and therefore, the interface protector only needs to be replaced under the condition that the interface protector is damaged due to violent plugging and unplugging without maintaining the interface of the device.

Taking fig. 1 as an example, the interface protector is often fixed to the device interface of the device, and when other devices need to be connected to the device, the connection to the device can be achieved only by connecting the other devices to the interface protector via the cable and the connector interface.

In the application scene of the interface protector, some equipment such as LED display screens are widely applied to important fields such as meeting rooms, outdoor advertisements, large-scale activities and the like, and in many important activity occasions, the stability requirement on the LED display screens is extremely high, the problem of screen blacking and screen flashing of the LED display screens is required to be avoided, so that high requirements are provided for the display reliability of the LED display screens. Especially in a complex environment with dryness and coexistence of a plurality of devices, due to ESD (Electro-Static discharge) generated by manual operation, environment and the like, the problem of screen blacking and screen flashing of the LED display screen is easily caused.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the technical problem, the utility model provides an interface protector, interface protector can be to the via electronic equipment that interface protector connects plays effectual protection.

On the one hand, the embodiment of the utility model provides a pair of interface protector, a serial communication port, include: a housing; an interface protector body comprising: the first interface is arranged at the first end of the shell and comprises a first pin group exposed out of the shell, and the first pin group comprises a first grounding pin; a second interface disposed at a second end of the housing opposite to the first end and including a second pin group exposed out of the housing, the second pin group including a second ground pin; the circuit board is accommodated in the shell, is connected between the first interface and the second interface, and comprises a signal grounding end and a shell grounding end; the first grounding pin, the signal grounding end and the shell grounding end are connected with each other, the second grounding pin, the signal grounding end and the shell grounding end are connected with each other, and the shell is connected with the shell grounding end.

In the above scheme, the first ground pin, the signal ground terminal, and the housing ground terminal of the first interface are connected to each other, the second ground pin, the signal ground terminal, and the housing ground terminal of the second interface are connected to each other, and the housing is connected to the housing ground terminal, so that electrostatic energy is rapidly released mainly through the housing to the ground terminal of the electronic device connected to the interface protector, and residual slight electrostatic energy is coupled to the circuit board through the housing and is equipotentially connected through the housing ground terminal and the signal ground terminal, thereby realizing effective release of electrostatic energy, and further protecting the electronic device connected to the interface protector.

In an embodiment of the present invention, the first end inner side of the housing is provided with a first groove, the second end inner side of the housing is provided with a second groove, the first interface is close to one side of the circuit board is provided with a first boss adapted to the first groove, the second interface is close to one side of the circuit board is provided with a second boss adapted to the second groove, the first boss and the second boss respectively connect to the housing ground, the housing passes through the first boss and the housing ground connect and pass through the second boss is connected to the housing ground.

In an embodiment of the present invention, the first boss periphery is provided with a first conductive part, the second boss periphery is provided with a second conductive part, and the housing passes through the first conductive part electrically connected with the first boss and the second conductive part electrically connected with the second boss.

In an embodiment of the present invention, the first conductive part and the second conductive part are conductive adhesive tape, conductive foam or reed.

In an embodiment of the present invention, the first boss periphery is provided with a plurality of first bumps, the second boss periphery is provided with a plurality of second bumps, the housing passes through the plurality of first bumps to be connected to the first boss, and through the plurality of second bumps to be connected to the second boss.

In an embodiment of the present invention, the first interface is provided with a fixing screw along the insertion direction of the first interface, and the second interface is provided with a fixing nut along the insertion direction of the second interface.

In an embodiment of the present invention, the interface protector further includes a signal indicator lamp, the signal indicator lamp is disposed on the surface of the housing and located between the first interface and the second interface, and electrically connected to the circuit board.

In an embodiment of the present invention, the housing includes a first housing and a second housing, two sides of the first housing are respectively provided with a first screw hole and a second screw hole, the second housing is close to one end two sides of the first housing are respectively provided with a first nut and a second nut, two sides of the circuit board are correspondingly provided with a first screw groove and a second screw groove, the first housing the interface protector main body and the second housing are sequentially passed through the first screw hole, the first screw groove and the first screw of the first nut and sequentially passed through the second screw hole, the second screw groove and the second screw of the second nut for fixed connection.

In an embodiment of the present invention, the housing includes a first cavity, a second cavity and a third cavity connected between the first cavity and the second cavity, wherein the cavity height of the first cavity and the cavity height of the second cavity are both greater than the cavity height of the third cavity.

In an embodiment of the present invention, the first interface and/or the second interface are selected from a DVI interface, a VGA interface, and an HDMI interface, respectively.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a connection of a prior art interface protector.

Fig. 2 is a schematic structural diagram of an interface protector provided by the present invention.

Fig. 3 is a schematic view of the interface protector shown in fig. 2 from another perspective.

FIG. 4 is an exploded view of the interface protector shown in FIG. 2;

fig. 5 is a schematic structural diagram of an interface protector main body according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another interface protector main body according to an embodiment of the present invention;

fig. 7 is a schematic diagram of the connection between the interface and the circuit board according to the embodiment of the present invention; and

fig. 8 is a schematic diagram of pin distribution of an interface according to an embodiment of the present invention.

Description of the main element symbols:

1 is a shell; 11 is a first shell; 12 is a second shell; 121 is a first screw hole; 122 is a second screw hole; 123 is a first cavity; 124 is a second cavity; 125 is a third cavity; 2 is an interface protector main body; 21 is a first interface; 211 is a first pin; 212 is a first boss; 213 is a first conductive portion; 214 is a first bump; 215 is a fixed screw; 22 is a second interface; 221 is a second pin; 222 is a second boss; 223, a second conductive portion; 224 is a second bump; 225 is a fixed nut; 23 is a circuit board; 231 is a first screw groove; 233 is a signal indicator light; 31 is a first screw; and 32 is a second screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 2-4, an interface protector is shown. The interface protector includes, for example, a housing 1 and an interface protector body 2. Referring to fig. 4, the interface protector body 2 includes a first interface 21, a second interface 22, and a circuit board 23. The first interface 21 is exposed at a first end of the housing 1, the second interface 22 is exposed at a second end of the housing 1 opposite to the first end, and the circuit board 23 is accommodated in the housing 1 and connected between the first interface 21 and the second interface 22.

As shown in fig. 4, the first interface 21 includes a first pin group 211 exposed out of the housing 1, and the second interface 22 includes a second pin group 221 exposed out of the housing 1. The first pin group 211 includes a first ground pin, and the second pin group 221 includes a second ground pin. The circuit board 23 includes a signal ground terminal and a housing ground terminal. The first grounding pin, the signal grounding end and the shell grounding end are connected with each other, the second grounding pin, the signal grounding end and the shell grounding end are connected with each other, and the shell 1 is connected with the shell grounding end.

Optionally, the first ground pin is a ground pin of the first interface 21, the second ground pin is a ground pin of the second interface 22, the housing ground is disposed on the circuit board 23 and is usually disposed at an edge of the circuit board 23, and the signal ground, i.e., a signal ground on the circuit board, specifically, a reference point of zero potential, is also a common terminal forming a circuit signal loop.

Referring specifically to fig. 7, the ground pins (i.e., the first ground pin and the second ground pin) of the first interface 21 or the second interface 22 are connected to the housing ground terminal and the signal ground terminal of the circuit board 23. The embodiment of the utility model provides a through the mutual connection of above-mentioned ground pin, casing ground terminal and signal earthing terminal, and casing 1 with the connection of casing ground terminal has realized that electrostatic energy mainly releases to the electronic equipment earthing terminal of connecting through casing 1 fast, and remaining slight electrostatic energy is via casing coupling to circuit board, through the casing earthing terminal with signal earthing terminal equipotential is connected to realize the effective release of static, and then protected the electronic equipment with interface protector's connection. Alternatively, the interconnection between the ground pin of this interface and the housing ground terminal and the signal ground terminal on the circuit board 23 may be that the ground pin, the housing ground terminal and the signal ground terminal of the interface are interconnected through a copper layer on the circuit board as a medium, that is, the ground pin of the interface (including the first interface and the second interface), the housing ground terminal and the signal ground terminal of the circuit board 23 are all guided to the copper layer, so that the interconnection of the ground pin, the housing ground terminal and the signal ground terminal is realized. Of course, the three above-mentioned components may be connected with each other by a wire, and the embodiment of the present invention is not limited in this respect.

Fig. 8 is a pin diagram of the interface, and

pins

3, 11, 19, and 22 of the pins shown in fig. 8 are ground pins of the interface, and in addition, a plurality of pins of the interface further include signal pins, and the signal pins are connected to a circuit board 23. It should be noted that the first ground pin and the second ground pin may be one or more, and the signal ground terminal and the housing ground terminal on the circuit board 23 may also be one or more, which is not specifically limited herein in the embodiment of the present invention. In the embodiment of the present invention, the housing 1 is, for example, a metal housing.

Bear the aforesaid, casing 1 the first end inboard is equipped with first recess, casing 1 the second end inboard is equipped with the second recess, first interface 21 is close to one side of circuit board 23 be provided with the first boss 212 of first recess adaptation, second interface 22 is close to one side of circuit board 23 be provided with the second boss 222 of second recess adaptation, first boss 212 with second boss 222 respectively with the casing ground end is connected, casing 1 passes through first boss 212 with the casing ground end is connected and is passed through second boss 222 and casing ground end are connected. In this technical scheme, the first groove and the first boss 212 and the second groove and the second boss 222 are adapted to realize the fixed connection between the housing 1 and the first interface 21 and the second interface 22, so that the structure of the interface protector of this embodiment is firmer and more reliable, and the first boss 212 and the second boss 222 are respectively connected to the housing ground, so that static electricity is released to the housing ground through the housing via the first boss 212 and the second boss 222, and the static electricity is released.

As described above, as shown in fig. 6, first conductive member 213 is provided on the outer periphery of first boss 212, second conductive member 223 is provided on the outer periphery of second boss 222, and case 1 is electrically connected to first boss 212 via first conductive member 213 and to second boss 222 via second conductive member 223. The first conductive member 213 and the second conductive member 223 may be, for example, a conductive adhesive tape, a conductive foam, or a spring, but the first conductive member 213 and the second conductive member 223 may also be made of other conductive materials. First conductive part 213 with under second conductive part 223 is the condition of conducting strip, conducting strip is the conducting strip who has hollow structure, because its characteristics that have hollow structure, and so, conducting strip has played the effect of preventing falling and preventing pressing to the interface protector, thereby has improved the utility model discloses the reliability of interface protector. Here, the first conductive part 213 and the second conductive part 223 are respectively disposed on the peripheries of the first boss 212 and the second boss 222, which is beneficial to enhancing the fixed connection between the first interface 21 and the second interface 22 and the housing 1, and a low impedance circuit is established between the electronic device connected with the interface protector and the interface protector, thereby achieving a better electrostatic discharge effect.

In another embodiment of this embodiment, as shown in fig. 6, a plurality of first protrusions 214 are disposed on the outer periphery of the first boss 212, a plurality of second protrusions 224 are disposed on the outer periphery of the second boss 222, and the housing 1 is connected to the first boss 212 through the plurality of first protrusions 214 and connected to the second boss 222 through the plurality of second protrusions 224. Here, the plurality of first bumps 214 and the plurality of second bumps 224 are respectively disposed on the peripheries of the first boss 212 and the second boss 222, so that the fixed connection between the first interface 21 and the second interface 22 and the housing 1 is enhanced, and a good electrostatic discharge effect is achieved.

Here, the first protruding point 214 and the second protruding point 224 may be formed by punching the first boss 212 and the second boss 222, or may be formed by other methods. The plurality of first bumps 214 and the plurality of second bumps 224 are spaced apart from each other by a distance of, for example, 15mm, and the embodiment of the present invention is not particularly limited herein.

As shown in fig. 3, the first connector 21 is provided with a fixing screw 215 along the inserting direction of the first connector 21, and the second connector 22 is provided with a fixing nut 225 along the inserting direction of the second connector 22. Wherein the inserting direction and the direction of the interface are fixed to the electronic device or the connector connected with the inserting direction and the interface. Here, the fixing screw 215 and the fixing nut 225 are used to connect the interface protector with the corresponding electronic device, so as to realize the fixed connection between the interface protector and the corresponding electronic device.

In addition, as shown in fig. 2, the interface protector further includes a signal indicator light 233, and the signal indicator light 233 is disposed on the surface of the housing 1 between the first interface 21 and the second interface 22, and is electrically connected to the circuit board 23. When the interface protector normally works, the signal indicating lamp 233 is turned on, and when the interface protector is abnormal, the signal indicating lamp 233 is not turned on.

It should be mentioned that, as shown in fig. 4, the housing 1 includes a first housing 11 and a second housing 12, two sides of the first housing 11 are respectively provided with a first screw hole 121 and a second screw hole 122, the second housing 12 is close to two sides of one end of the first housing 11 are respectively provided with a first nut and a second nut, two sides of the circuit board 23 are correspondingly provided with a first screw groove 231 and a second screw groove, the first housing 11, the interface protector main body 2 and the second housing 12 are fixedly connected by sequentially passing through the first screw hole 121, the first screw groove 231 and a first screw 31 of the first nut and sequentially passing through the second screw hole 122, the second screw groove and a second screw 32 of the second nut. Here, through the above structural design, the housing 1 and the interface protector main body 22 are firmly fixed, and the stability of the interface protector is improved.

As shown in fig. 2, the housing 1 includes a first cavity 123, a second cavity 124, and a third cavity 125 connected between the first cavity 123 and the second cavity 124, and the height of the first cavity 123 and the height of the second cavity 124 are both greater than the height of the third cavity 125.

It should be noted that, the embodiment of the present invention does not limit the interface type of the interface protector, the first interface 21 and/or the second interface 22 are respectively selected from a DVI interface, a VGA interface, and an HDMI interface, the first interface 21 and the second interface 21 may be both male interfaces or both female interfaces, or one of the first interface and the second interface is a male interface and the other is a female interface, and the embodiment of the present invention is not specifically limited herein. In addition, the circuit board 23 is, for example, a PCB circuit board.

In addition, it can be understood that the foregoing embodiments are only exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated for use on the premise that the technical features are not conflicted, the structure is not contradictory, and the purpose of the present invention is not violated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An interface protector, comprising:

a housing (1);

interface protector body (2) comprising:

a first interface (21) disposed at a first end of the housing (1) and including a first pin group (211) exposed out of the housing (1), the first pin group (211) including a first ground pin;

a second interface (22) disposed at a second end of the housing (1) opposite to the first end and including a second pin group (221) exposed out of the housing (1), the second pin group (221) including a second ground pin;

a circuit board (23) accommodated in the housing (1), connected between the first interface (21) and the second interface (22), and including a signal ground terminal and a housing ground terminal;

the first grounding pin, the signal grounding end and the shell grounding end are connected with each other, the second grounding pin, the signal grounding end and the shell grounding end are connected with each other, and the shell (1) is connected with the shell grounding end.

2. The interface protector according to claim 1, wherein a first groove is formed inside the first end of the housing (1), a second groove is formed inside the second end of the housing (1), a first boss (212) adapted to the first groove is arranged on one side of the first interface (21) close to the circuit board (23), a second boss (222) adapted to the second groove is arranged on one side of the second interface (22) close to the circuit board (23), the first boss (212) and the second boss (222) are respectively connected with the housing ground end, and the housing (1) is connected with the housing ground end through the first boss (212) and is connected with the housing ground end through the second boss (222).

3. The interface protector according to claim 2, wherein the first boss (212) is provided at its outer periphery with a first conductive member (213), and the second boss (222) is provided at its outer periphery with a second conductive member (223), and the housing (1) is electrically connected to the first boss (212) through the first conductive member (213) and to the second boss (222) through the second conductive member (223).

4. The interface protector as claimed in claim 3, characterised in that the first conductive part (213) and the second conductive part (223) are strips of conductive glue, conductive foam or reed.

5. Interface protector according to claim 2, characterized in that the first boss (212) is peripherally provided with a plurality of first elevations (214), that the second boss (222) is peripherally provided with a plurality of second elevations (224), and that the housing (1) is connected to the first boss (212) by means of the plurality of first elevations (214) and to the second boss (222) by means of the plurality of second elevations (224).

6. Interface protector according to claim 1, characterized in that the first interface (21) is provided with a fixing screw (215) in the direction of insertion of the first interface (21), and the second interface (22) is provided with a fixing nut (225) in the direction of insertion of the second interface (22).

7. The interface protector according to any of claims 1-6, further comprising a signal indicator light (233), the signal indicator light (233) being disposed on a surface of the housing (1) between the first interface (21) and the second interface (22) and being electrically connected to the circuit board (23).

8. Interface protector according to any of claims 1-6, characterized in that the housing (1) comprises a first housing (11) and a second housing (12), a first screw hole (121) and a second screw hole (122) are respectively arranged at two sides of the first shell (11), a first nut and a second nut are respectively arranged on two sides of one end of the second shell (12) close to the first shell (11), a first screw groove (231) and a second screw groove are correspondingly arranged on two sides of the circuit board (23), the first shell (11), the interface protector main body (2) and the second shell (12) are fixedly connected by sequentially passing through the first screw hole (121), the first screw groove (231) and the first screw (31) of the first nut and sequentially passing through the second screw hole (122), the second screw groove and the second screw (32) of the second nut.

9. Interface protector according to any of claims 1-6, characterized in that the housing (1) comprises a first cavity (123), a second cavity (124) and a third cavity (125) connected between the first cavity (123) and the second cavity (124), the cavity height of the first cavity (123) and the cavity height of the second cavity (124) each being larger than the cavity height of the third cavity (125).

10. Interface protector according to any of claims 1-6, characterized in that the first interface (21) and/or the second interface (22) are selected from DVI interface, VGA interface, HDMI interface, respectively.