CN212908363U

CN212908363U - Grounding structure of electric connector joint

Info

Publication number: CN212908363U
Application number: CN202021746912.0U
Authority: CN
Inventors: 程正云
Original assignee: Shenzhen Zhengheng Precision Technology Co ltd
Current assignee: Zhongzao Technology Group Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-06
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a ground structure that electric connector connects, including insulator and metal casing, the metal casing cover is established insulator's the outside, insulator passes through mounting groove connection trip, the one end of trip is provided with the spread groove, and passes through spread groove connecting circuit board, be provided with the ground connection shell fragment on metal casing's the lateral wall, the ground connection shell fragment stretches into metal casing's inside and with the surface contact of trip, and then make metal casing ground connection is connected to this effect that increases the jam-proof shielding of EMI.

Description

Grounding structure of electric connector joint

Technical Field

The utility model relates to an electric connector technical field especially relates to an electric connector's ground structure.

Background

With the rapid development of society, various electric appliances and terminal devices are rapidly popularized, and when the electric appliances or some terminal devices are used, a power supply is generally connected through an electric connector, or the electric appliances or some terminal devices are electrically connected with other connectors through the electric connector. The prior electric connector is generally provided with a corresponding shell for protecting an electric original and a rubber core on the electric connector, but the shell on the prior electric connector is generally not grounded, and the grounding connection can not be conducted through a circuit board and a GND signal terminal generally, so that the EMI anti-interference shielding effect of the electric connector is poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses an electric connector connects's ground structure can carry out ground connection to metal casing, increases EMI jam-proof and shields the effect.

The utility model discloses a ground structure that electric connector connects, including insulator and metal casing, the metal casing cover is established insulator's the outside, insulator passes through mounting groove connection trip, the one end of trip is provided with the spread groove, and passes through spread groove connecting circuit board, be provided with the ground connection shell fragment on metal casing's the lateral wall, the ground connection shell fragment stretches into metal casing's inside and with the surface contact of trip.

Furthermore, one end, extending out of the mounting groove, of the clamping hook is provided with a first stop block, a second stop block is arranged on the outer side wall of the mounting groove, and the second stop block is limited by the clamping hook through the first stop block.

Furthermore, at least one side wall of the connecting groove is provided with an electric connection bulge, and the electric connection bulge abuts against a connection potential on the circuit board.

Furthermore, the insulating body comprises a first connecting portion and a second connecting portion, the metal shell comprises a front shell and a rear shell, the front shell is sleeved on the first connecting portion, the rear shell is sleeved on the second connecting portion, and the grounding elastic sheet is arranged on the second connecting portion.

Furthermore, a clamping plate is arranged on one side of the front shell, a positioning hole is formed in the clamping plate, a clamping plate groove corresponding to the clamping plate is formed in the second connecting portion, and a buckle matched with the clamping hole is arranged in the clamping plate groove.

Furthermore, a positioning bulge is arranged on the side wall of the rear shell, and the positioning bulge extends into the positioning hole and is positioned on one side of the buckle.

Further, the cardboard includes first joint portion and second joint portion, second joint portion passes through first joint portion with preceding shell is connected, the locating hole is located in the second joint portion, the backshell is close to the outside extension of one end of preceding shell forms first portion of bending, first portion of bending is right first joint portion is spacing.

Furthermore, one end, close to the front shell, of the rear shell is provided with a second bending portion, and the second connecting portion is used for limiting the rear shell through the second bending portion.

The technical scheme of the utility model, compared with the prior art, beneficial effect is:

the clamping hook is electrically connected with the circuit board and can be connected with a corresponding GND signal terminal through the circuit board, and the metal shell is electrically connected with the clamping hook through the grounding elastic sheet so as to enable the metal shell to be grounded and connected, thereby increasing the EMI anti-interference shielding effect.

Drawings

FIG. 1 is a schematic diagram of a grounding structure;

FIG. 2 is an exploded view of the grounding structure;

FIG. 3 is a side view of the front housing;

FIG. 4 is a cross-sectional view of the rear housing;

FIG. 5 is an enlarged view of area A of FIG. 1;

FIG. 6 is an exploded view of the grounding structure;

description of the figures

100. A ground structure; 10. an insulating body; 11. a first connection portion; 12. a second connecting portion; 121. mounting grooves; 122. a second stopper; 13. a clamping plate groove; 14. buckling; 15. anti-skid projections; 20. a front housing; 21. clamping a plate; 211. a first clamping part; 212. a second clamping part; 22. positioning holes; 30. a rear housing; 31. positioning the projection; 32. a first bending portion; 33. a second bending portion; 34. a grounding elastic sheet; 40. a hook is clamped; 41. connecting grooves; 42. a first stopper; 43. connecting a power lug; 50. a circuit board.

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 should be noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may exist. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be further noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and fig. 2, the utility model discloses a grounding structure 100 of electric connector joint, including insulator 10 and metal casing, the metal casing cover is established on insulator 10. The insulating body 10 comprises a first connecting portion 11 and a second connecting portion 12, the first connecting portion 11 and the second connecting portion 12 are integrally formed, the first connecting portion 11 is located on one side of the second connecting portion 12, the metal shell comprises a front shell 20 and a rear shell 30, the front shell 20 is sleeved on the first connecting portion 11, and the rear shell 30 is sleeved on the second connecting portion 12.

One side of the front shell 20 extends outwards to form a clamping plate 21, a positioning hole 22 is formed in the clamping plate 21, a clamping plate groove 13 corresponding to the clamping plate 21 is formed in the second connecting portion 12, a buckle 14 is arranged in the clamping plate groove 13, and when the clamping plate 21 extends into the clamping plate groove 13, the buckle 14 and the positioning hole 22 are mutually clamped, so that the front shell 20 is fixed on the insulating body 10.

The outer surface of the first connecting portion 11 is provided with an anti-skid protrusion 15, when the front shell 20 is sleeved on the first connecting portion 11, the anti-skid protrusion 15 abuts against the inner wall of the front shell 20, so that the friction force between the first connecting portion 11 and the front shell 20 is increased, and the first connecting portion 11 and the front shell 20 are connected tightly.

Be provided with location arch 31 on the lateral wall of backshell 30, location arch 31 inwards extends and can stretch into in the locating hole 22 for backshell 30 with preceding shell 20 joint each other makes preceding shell 20 backshell 30 and insulator 10 connect closely. In this embodiment, the positioning protrusion 31 is located on one side of the buckle 14 in the positioning hole 22.

With continuing reference to fig. 3 to fig. 5, the clamping plate 21 further includes a first clamping portion 211 and a second clamping portion 212, the second clamping portion 212 is connected to the front housing 20 through the first clamping portion 211, the positioning hole 22 is located on the second clamping portion 212, and the second clamping portion 212 is matched with the clamping plate slot 13. Backshell 30 is close to the outside extension of one end of preceding shell 20 forms first portion of bending 32, first portion of bending 32 is right first joint portion 211 carries on spacingly, through first joint portion 211 prevents preceding shell 20 is to keeping away from the direction of backshell 30 removes, and then will preceding shell 20 comparatively firm connection on insulator 10.

Further, the backshell 30 is close to the one end of preceding shell 20 is provided with the second portion of bending 33, the second portion of bending 33 is located the second connecting portion 12 is close to one side of preceding shell 20, second connecting portion 12 accessible the second portion of bending 33 is right the backshell 30 carries on spacingly, prevents the backshell 30 is to keeping away from the direction of preceding shell 20 removes, will the comparatively firm cover of backshell 30 is established on the second connecting portion 12.

As shown in fig. 6, the electrical connector further includes two hooks 40 and a circuit board 50, wherein a mounting groove 121 is disposed on the insulating body 10, a first end of the hook 40 extends into the insulating body 10 through the mounting groove 121 and is connected to the insulating body 10, a second end of the hook 40 is located on one side of the insulating body 10, and the two hooks 40 are respectively and symmetrically disposed. The circuit board 50 is disposed at one side of the insulating body 10, and the circuit board 50 can be electrically connected to a GND signal terminal. The second end of the hook 40 is provided with a connecting groove 41, and one side of the circuit board 50 extends into the connecting groove 41 and is electrically connected with the hook 40.

The second end of the hook 40 is provided with a first stop block 42, the outer side wall of the mounting groove 121 is provided with a second stop block 122, the second stop block 122 limits the hook 40 through the first stop block 42, prevents the hook 40 from continuously extending into the mounting groove 121, and can position the hook 40, so that the hook 40 is firmly connected.

At least one side wall of the connecting groove 41 is provided with an electric connection protrusion 43, when the circuit board 50 extends into the connecting groove 41, the electric connection protrusion 43 abuts against a connection potential on the circuit board 50, so that the hook 40 is electrically connected with the circuit board 50.

Furthermore, a grounding elastic sheet 34 is arranged on the metal shell, the grounding elastic sheet 34 is inwards sunken to extend into the metal shell, the grounding elastic sheet 34 presses the hook 40 to electrically connect the metal shell with the hook 40, and further electrically connect with the GND signal terminal, so that the metal shell can be grounded and connected, and the EMI anti-interference shielding effect can be enhanced. In this embodiment, there are two grounding elastic pieces 34, and both grounding elastic pieces are disposed on the rear housing 30.

Further, the grounding elastic sheet 34 presses the first stopper 42.

The present invention can be designed in various embodiments and modifications without departing from the spirit and scope of the present invention in its broadest sense, and the above-described embodiments are intended to illustrate the present invention, but not to limit the scope of the present invention.

Claims

1. The utility model provides a ground structure that electric connector connects, includes insulator and metal casing, the metal casing cover is established the outside of insulator, its characterized in that, insulator passes through the mounting groove and connects the trip, the one end of trip is provided with the spread groove, and passes through spread groove connecting circuit board, be provided with the ground connection shell fragment on metal casing's the lateral wall, the ground connection shell fragment stretch into metal casing's inside and with the surface contact of trip.

2. The grounding structure of an electrical connector as claimed in claim 1, wherein a first stop is disposed at an end of the hook extending out of the mounting groove, and a second stop is disposed on an outer sidewall of the mounting groove, and the second stop limits the hook by the first stop.

3. The grounding structure of claim 1, wherein at least one sidewall of the connecting slot has an electrical connection protrusion thereon, and the electrical connection protrusion abuts against a connection potential on the circuit board.

4. The grounding structure of claim 1, wherein the housing includes a first connecting portion and a second connecting portion, the metal shell includes a front shell and a rear shell, the front shell is sleeved on the first connecting portion, the rear shell is sleeved on the second connecting portion, and the grounding spring is disposed on the second connecting portion.

5. The grounding structure of an electrical connector as claimed in claim 4, wherein a clamping plate is disposed on one side of the front housing, the clamping plate has a positioning hole, the second connecting portion has a clamping plate slot corresponding to the clamping plate, and the clamping plate slot has a buckle engaged with the positioning hole.

6. The grounding structure of an electrical connector terminal as claimed in claim 5, wherein a positioning protrusion is disposed on a side wall of the rear housing, the positioning protrusion extending into the positioning hole and being located at one side of the latch.

7. The grounding structure of an electrical connector as claimed in claim 6, wherein the clamping plate includes a first clamping portion and a second clamping portion, the second clamping portion is connected to the front housing through the first clamping portion, the positioning hole is located on the second clamping portion, one end of the rear housing near the front housing extends outward to form a first bending portion, and the first bending portion limits the first clamping portion.

8. The grounding structure of an electrical connector terminal as claimed in claim 7, wherein an end of the rear housing near the front housing is provided with a second bent portion, and the second connecting portion limits the rear housing by the second bent portion.