CN201270298Y - Electrical connector - Google Patents

Abstract

The utility model discloses an electric connector, it includes an insulator, a plurality of terminal and a casing. The insulating body is provided with a fixing part, and a plurality of terminal channels are arranged on the fixing part; the shell is provided with an elastic sheet, the middle part of the elastic sheet is provided with a hole, the rear end of the elastic sheet is bent to extend out an elastic ring, the tail end of the elastic ring is extended out of an elastic arm, the elastic arm penetrates out of the hole in an inclined upward mode, and the tail end of the elastic arm is bent and extends to form an elastic supporting part. The shell and the insulating body form a socket, the elastic ring is positioned in the socket and can be abutted against the insulating body, and the elastic abutting part and the fixing part extend into the socket. The utility model discloses when electric connector docks with the butting connector, the bullet supports the portion and supports the butting connector with elasticity of bullet ring, and the card power of multiplicable butt joint to can avoid the butting connector to hold behind the plug many times card and hold not hard up and the electric connection that leads to is bad.

Description

electrical connector

technical field

The utility model relates to a connector, in particular to an electrical connector for plugging in a USB plug.

Background technique

Existing electrical connectors for USB plugs generally include an insulating body with several terminal passages, several terminals inserted in the terminal passages of the insulating body, and a cover that is closed on the insulating body and surrounded by the insulating body. A housing for accommodating space. In order to achieve elastic clamping with the docking connector, an elastic clamping plate with a free end facing into the accommodating space and extending obliquely into the accommodating space is usually cut out on the shell, and the clamping plate can be clamped against and holding the butting connector.

However, after a long period of use, after the above-mentioned electrical connector has been plugged and pulled out many times, the elastic force of the clamping plate is weakened, so that the clamping force of the docking connector is weakened, so it is easy to loose the clamping and cause electrical failure. Poor connection.

Utility model content

The purpose of this utility model is to provide an electrical connector that can still be reliably clamped and electrically connected to the butt connector after being used for a long time and the butt connector has been plugged and pulled out many times in view of the defects and deficiencies of the above-mentioned prior art. .

In order to achieve the above purpose, the electrical connector provided by the utility model includes an insulating body, several terminals and a housing; the insulating body has a holding part, and several terminal passages are opened on the holding part; several terminals are inserted in In the terminal channel of the insulating body; the housing is covered on the insulating body, the housing has a base plate, the upper end of the base plate is bent and extended vertically with a shrapnel, the middle part of the shrapnel is provided with an opening, and the rear end of the shrapnel is bent and extended to a roughly An annular elastic ring, an elastic arm extends from the end of the elastic ring, and the elastic arm passes through the opening obliquely upwards, and the end of the elastic arm is bent and extended to form an elastic contact portion; wherein, the housing and the insulating body form an insertion interface, so that The elastic ring is located in the socket and can be pressed against the insulating body, the spring-resisting part can extend into the socket, and the holding part is located in the socket.

As mentioned above, the electric connector of the utility model can elastically abut against the docking connector with the resilient part and the spring ring, which can increase the holding force of the docking connector between the electrical connector and the docking connector, thereby avoiding multiple plugging and unplugging of the docking connector. The poor electrical connection caused by the looseness of the rear clamp can prolong the service life of the electrical connector.

Description of drawings

FIG. 1 is a perspective view of an embodiment of the electrical connector of the present invention.

FIG. 2 is an exploded perspective view of the electrical connector shown in FIG. 1 .

FIG. 3 is a perspective view of the insulating body of the electrical connector shown in FIG. 1 .

FIG. 4 is a perspective view of the holding shell of the electrical connector shown in FIG. 1 .

Fig. 5 is a side view of the electrical connector shown in Fig. 1 after being plugged into the mating connector, in order to show its internal structure, a partial cutaway of the shell is made.

The reference signs of each component in the figure are explained as follows:

Electrical Connector 1 1 Insulation Body 10

Grooving 11 Holding part 12

Terminal Channel 13 Card Slot 14

groove 15 ridge 16

Terminal positioning channel 17 Butt connector 2

Terminal 20 Fixed part 21

Contact part 22 Housing 30

Top Plate 31 Side Plate 32

Cover plate 33 Accommodating space 34

Card board slot 351, 352 Card board 361, 362

Fixed foot 37 Opening 38

Clamp block 39 clamp block 40

Holder Shell 50 Substrate 51

Wing plate 52 Engaging groove 53

Card 54 Shrapnel 55

Hole 56 Tab 57

Elastic Ring 58 Elastic Arm 59

Bouncing part 591 shell 60

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 and FIG. 2 , the electrical connector 1 of the present invention includes an insulating body 10 , a clip 40 , several terminals 20 inserted on the insulating body 10 and a housing 60 .

Please refer to Fig. 2, shown in Fig. 3, insulator body 10 is substantially cuboid shape, and the top of the front surface of insulator body 10 offers a slot 11 extending to the upper surface and the left and right sides backwards, the rear side groove of slot 11 A plate-shaped holding portion 12 protrudes forward from the middle of the wall. A plurality of terminal passages 13 penetrating backward through the insulating housing 10 are defined on the holding portion 12 . A lower end of the front surface of the insulating body 10 defines a locking slot 14 . The rear surface of the insulating body 10 is provided with a groove 15 extending to the lower surface, and the lower part of the groove bottom wall of the groove 15 is protruded with several raised lines 16 extending in the vertical direction, between adjacent raised lines 16 There are terminal positioning channels 17 corresponding to the terminal channels 13 and equal in number.

Referring to FIG. 2 , the terminal 20 has a vertical strip-shaped fixing portion 21 and a contact portion 22 bent and extended forward from the upper end of the fixing portion 21 . The fixing part 21 is positioned in the terminal positioning channel 17 and the lower end of the fixing part 21 protrudes from the insulating body 10 , and the contact part 22 is inserted into the corresponding terminal channel 13 .

Please continue to refer to FIG. 2 , FIG. 4 and FIG. 5 . In the present invention, the casing 60 is composed of a shell 30 and a holding shell 50 . The housing 30 has a top plate 31 , two sides of the top plate 31 are vertically bent downwards to extend out of a side plate 32 , and the rear end of the top plate 31 is vertically bent and extended out of a cover plate 33 . The top plate 31 , the side plate 32 and the cover plate 33 enclose an accommodating space 34 , and the insulating body 10 is accommodated in the accommodating space 34 . The front part of the top plate 31 is cut and stamped to form two clamping slots 351 and two clamping plates 361 extending forward and downward from the rear end of the clamping slots 351 respectively; The board slot 352 and a board 362 extending backward from the front end of the board slot 352 and into the accommodating space 34 , the boards 361 , 362 are used to engage with the mating connector 2 . The lower edges of the two side panels 32 are respectively bent and extended outwards, and then bent and extended inwards to form two fixing feet 37 . The fixing feet 37 are used to fix the electrical connector 1 on a circuit board (not shown in the figure). An opening 38 is defined near the upper end of the front edge of the side panel 32 . The side plate 32 protrudes below the opening 38 with two locking blocks 39 separated by a certain distance.

The clamping shell 50 has a substantially rectangular plate-shaped base plate 51 , and the base plate 51 covers the front surface of the insulating body 10 below the slot 11 . Both sides of the base plate 51 are respectively bent and extended vertically to extend a wing plate 52 , the wing plate 52 covers the front part of the lower part of the side plate 32 , and the wing plate 52 is provided with an engaging groove 53 that engages with the block 39 of the housing 30 . The middle part of the lower end of the base plate 51 is bent inwardly and extends with a card 54 which is held in the slot 14 of the insulating body 10 . The upper end of the base plate 51 is vertically bent and extended backward with an elastic piece 55 , and two openings 56 are defined in the middle of the elastic piece 55 . A protruding piece 57 protrudes from both sides of the elastic piece 55 , and the protruding piece 57 is snapped into the opening 38 of the housing 30 . The rear end of the elastic piece 55 is bent corresponding to the opening 56 to extend a pair of elastic rings 58 with a ring-shaped cross section. The elastic ring 58 is formed by bending and extending backward and upward in a circular arc from the rear end of the elastic piece 55 , then bending and extending backward and downward in a circular arc, and then bending and extending forward and downward in a circular arc. The end of the elastic ring 58 is located below the plane where the elastic piece 55 is located. An elastic arm 59 extends obliquely upwards from the end of each elastic ring 58 . The elastic arm 59 obliquely passes through the opening 56 .

During assembly, the terminal 20 is inserted on the insulating body 10 , and the plate-shaped clamping block 40 is fastened to the terminal positioning channel 17 of the insulating body 10 to prevent the terminal 20 from loosening. The shell 30 and the holding shell 50 are covered on the insulating body 10, so that the shell 30, the spring piece 55 of the holding shell 50 and the groove wall of the slot 11 of the insulating body 10 form a plug-in socket for the mating connector 2 to plug in. interface (not shown in the figure). The holding part 12 is located in the socket, the clamping plates 361, 362 are respectively located above or on one side of the socket and can extend into the socket, the elastic ring 58 is located in the socket and can be pressed against the insulating body 10, the elastic arm 59 The resilient part 591 can extend into the lower part of the insertion port.

Please refer to Figure 5. After the electrical connector 1 of the present invention is docked with the docking connector 2, the clamping plates 361 and 362 elastically push against the docking connector 2 from above and both sides; The elastic abuts against the mating connector 2, so that the plugging force between the electrical connector 1 and the mating connector 2 is strengthened.

As mentioned above, the electric connector 1 of the present utility model can elastically abut the docking connector 2 due to the resilient part 591 and the elastic ring 58, which can increase the clamping force of the docking connector 2, thereby avoiding the excessive contact of the docking connector 2. Poor electrical connection caused by loose clamping after first plugging and unplugging, prolonging the service life of the electrical connector 1 .

Claims (8)

1. an electric connector comprises an insulating body, several terminals and a housing, and insulating body has a holding parts, offers several terminal channels on this holding parts; Several terminals are inserted in the terminal channel of insulating body; Case lid is combined on the insulating body, and surrounds an interface with insulating body, and holding parts is positioned at this interface; It is characterized in that: housing has a substrate, the vertical backward bending in substrate upper end is extended with a shell fragment, the shell fragment middle part offers perforate, shell fragment rear end bending extending a roughly ringwise bullet ring, the end of bullet ring extends an elastic arm, elastic arm passes perforate obliquely, and the terminal bending of elastic arm extends to form a butted portion; Wherein, described bullet ring is positioned at interface and can replaces on insulating body, and butted can extend in the interface.

2. electric connector as claimed in claim 1 is characterized in that: described bullet ring extends the extension of circular arc bending downwards backward again for the circular arc bending that makes progress backward from the shell fragment rear end, and then circular arc bending downwards extends to form forward.

3. electric connector as claimed in claim 1 is characterized in that: described housing comprises that a shell and holds shell, and shell has top board, and side plate is extended, the fixture block that convexes with separated by a distance on the side plate in top board both sides bending vertically downward respectively; Hold shell and have described substrate and shell fragment, a wing plate is extended in the vertical backward respectively bending in substrate both sides, and wing plate covers the previous section in the side plate bottom, offers the slot that the fixture block with shell fastens on the wing plate.

4. electric connector as claimed in claim 3, it is characterized in that: place, the top of the front surface of described insulating body offers a fluting that extends to upper surface and left and right sides face, substrate covers on the front surface that is positioned at part below the fluting of insulating body, and described holding parts is to extend forward from the rear side cell wall of slotting to form.

5. electric connector as claimed in claim 4 is characterized in that: the cell wall of the fluting of described shell, the shell fragment that holds shell and insulating body surrounds described interface.

6. electric connector as claimed in claim 3 is characterized in that: the side plate of described shell is offered an opening near the leading edge upper end; The shell fragment both sides that hold shell convex with a lug respectively, and lug is buckled in the opening of shell.

7. electric connector as claimed in claim 3 is characterized in that: the lower end of the front surface of described insulating body offers a draw-in groove; The substrate lower end middle part that holds shell bends inwards and is extended with a card that is held in the draw-in groove of insulating body.

8. electric connector as claimed in claim 3 is characterized in that: the top board of described shell top anterior and biside plate all forms the clamp that can extend in the interface.

Images