CN218827973U

CN218827973U - DC socket

Info

Publication number: CN218827973U
Application number: CN202223169238.6U
Authority: CN
Inventors: 高明松; 涂光文
Original assignee: Langzhong Jin Sanxin Electronics Co ltd
Current assignee: Langzhong Jin Sanxin Electronics Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-04-07
Anticipated expiration: 2032-11-28

Abstract

The utility model belongs to the technical field of sockets, in particular to a DC socket, which comprises an insulating shell, wherein jacks are arranged in the insulating shell, and a plurality of negative contact elastic pieces are circumferentially arranged on the inner wall of each jack; anodal connecting seat setting in the insulating casing rear end and with the insulating casing joint, be equipped with the PIN needle on the front surface of anodal connecting seat, during the PIN needle stretched into the jack, be equipped with a plurality of joint grooves on the periphery wall of PIN needle, joint inslot joint has a plurality of anodal contact shell fragments, is equipped with the contact convex part on the anodal contact shell fragment surface, is equipped with a plurality of contact points, and the contact switches on stably, the difficult condition that appears contact failure.

Description

DC socket

Technical Field

The utility model belongs to the technical field of the socket, concretely relates to DC socket.

Background

The DC socket is a common socket for electric appliances and consists of a transverse socket, a longitudinal socket, an insulating base, a V-shaped contact spring piece and a directional key groove. The traditional DC socket has the advantages that the V-shaped contact spring piece only has one contact point, when the DC socket is used, the plug is inserted into the DC socket, and the contact spring piece is conducted with the copper outer wall of the plug through the contact point.

The existing Chinese patent CN201721925831.5 discloses a DC socket, which comprises an insulating shell and a PIN needle arranged on the insulating shell, wherein a jack is arranged on the insulating shell, the PIN needle extends into the jack, a negative connecting sheet is arranged in the insulating shell, a contact elastic sheet obliquely connected with the negative connecting sheet is arranged on the negative connecting sheet, the contact elastic sheet is arranged in the jack, and a plurality of connecting convex parts are arranged on the contact elastic sheet. When the DC socket is used, the plug is inserted into the jack, the PIN PIN is inserted into the PIN pinhole of the plug, the two connecting convex parts on the contact elastic sheet are abutted to the outer wall of the plug, the first connecting convex part is buckled and fixed with the annular groove on the plug, the second connecting convex part is used for increasing contact points, even if the elasticity of the contact elastic sheet is reduced, the second connecting convex part can still be in contact conduction with the outer wall of the plug, and the phenomenon of poor contact cannot occur. However, after the plug is frequently inserted and pulled out, if the single contact spring piece fails, the contact point of the contact spring piece and the copper outer wall of the plug are in poor contact.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a DC socket to after solving current single contact shell fragment and becoming invalid, the contact point of contact shell fragment and the bad problem of copper outer wall contact of plug.

The utility model adopts the technical scheme as follows: a DC socket comprises an insulating shell, wherein a jack is arranged in the insulating shell, and a plurality of negative contact elastic sheets are circumferentially arranged on the inner wall of the jack;

anodal connecting seat, anodal connecting seat set up in insulating casing rear end and with insulating casing joint, be equipped with the PIN needle on the front surface of anodal connecting seat, the PIN needle stretches into in the jack, be equipped with a plurality of joint grooves on the periphery wall of PIN needle, the joint inslot joint has a plurality of anodal contact shell fragments, be equipped with the contact convex part on the anodal contact shell fragment surface.

Further, still include anodal shell fragment connecting portion, anodal shell fragment connecting portion are annular sheet structure, and are a plurality of the one end of anodal contact shell fragment all with anodal shell fragment connecting portion fixed connection, anodal connecting seat is equipped with anodal hole of stepping down to supply anodal contact shell fragment to pass and stretch into the joint inslot, anodal shell fragment connecting portion can with anodal hole joint of stepping down, the other end of anodal contact shell fragment is equipped with the joint head, the tip of joint head can the butt on the inner wall in joint groove.

Further, be equipped with anodal draw-in groove on the anodal hole inner wall of stepping down, anodal shell fragment connecting portion surface corresponds anodal draw-in groove is equipped with the joint lug of looks adaptation, the joint lug can block into in the anodal draw-in groove.

Furthermore, a plurality of buckles are arranged on the surface, close to the insulating shell, of the positive connecting seat, the insulating shell is provided with buckling holes matched with the buckles, and the buckles are clamped in the buckling holes.

Furthermore, the negative electrode connecting part is of an annular sheet structure, one end of the negative electrode connecting part is fixedly connected with a plurality of negative electrode contact spring pieces, the inner peripheral wall of each jack corresponds to the negative electrode contact spring pieces, a first limiting groove is formed in each negative electrode contact spring piece, a negative electrode welding line part is fixedly connected to the other end of the negative electrode connecting part, a negative electrode abdicating hole is formed in each positive electrode connecting seat corresponding to the negative electrode welding line part, and the negative electrode abdicating hole can limit the negative electrode welding line part to rotate around the axis of each jack.

Further, the inside of PIN needle is equipped with the mounting hole along PIN needle length direction, the joint has the PIN probe in the mounting hole, the one end of PIN probe is equipped with PIN bonding wire portion, anodal connecting seat rear surface joint has the dorsal scale, all seted up the PIN probe hole of stepping down on dorsal scale and the anodal connecting seat and passed and make PIN bonding wire portion joint outside the dorsal scale for the PIN probe, the PIN probe hole of stepping down can restrict PIN bonding wire portion and rotate around the axis of PIN needle.

Furthermore, a grounding shell is arranged on the surface of the insulating shell, and the grounding shell is a metal shell; the one end of ground connection shell is equipped with a plurality of portions of bending, the terminal surface of anodal connecting seat and dorsal scale all be equipped with the corresponding second spacing groove of the portion of bending, the portion's butt of bending in on the lateral wall of second spacing groove, the insulating casing upper surface is equipped with spacing draw-in groove, the position that corresponds on the ground connection shell spacing draw-in groove is equipped with the wedge convex part, the wedge convex part can the joint in spacing draw-in groove to the restriction ground connection shell is deviate from the insulating casing.

The utility model has the advantages that:

during the jack that the plug inserted DC socket insulating housing, a plurality of negative pole contact shell fragment butt on the jack internal perisporium is on the periphery wall of plug, the PIN pinhole inserts in the PIN pinhole of plug, a plurality of anodal contact shell fragment butt on the PIN pinhole peripheral wall is on the internal perisporium of PIN pinhole, the contact convex part on a plurality of anodal contact shell fragments is fastened with PIN pinhole internal perisporium butt more, form a plurality of contact point contacts, make the contact of plug and DC socket more stable, anodal contact shell fragment joint is in the joint inslot of PIN needle, when the elasticity of any anodal shell fragment reduces, a plurality of contact convex parts still can switch on with PIN pinhole internal perisporium contact, the difficult condition of contact failure that appears, negative pole contact shell fragment and anodal contact shell fragment all adopt the multiple contact structure of circumference setting, the contact switches on stably, the difficult condition of contact failure that appears, can also improve the input and the output of load.

Drawings

Fig. 1 is a schematic front perspective view of the present invention;

FIG. 2 is a rear view of the present invention;

fig. 3 is a schematic diagram of a back three-dimensional structure of the present invention (a back shell is not shown in the figure);

FIG. 4 is the schematic diagram of the explosion structure of the insulating housing and the negative contact spring of the present invention

Fig. 5 is a schematic perspective view of the insulating housing and the negative contact spring of the present invention;

fig. 6 is a schematic perspective view of an assembly of the positive electrode connecting seat, the positive electrode contact spring, and the PIN probe according to the present invention;

fig. 7 is a schematic view of the three-dimensional structure of the positive contact spring of the present invention;

fig. 8 is a schematic view of the three-dimensional structure of the PIN probe of the present invention;

fig. 9 is a schematic cross-sectional view of a DC plug according to the present invention;

the drawings are labeled as follows:

insulating casing 1, jack 11, detain hole 12, first spacing groove 13, spacing draw-in groove 14, negative pole contact shell fragment 2, anodal connecting seat 3, PIN needle 31, joint groove 32, anodal hole 33 of stepping down, anodal draw-in groove 34, buckle 35, negative pole hole 36 of stepping down, mounting hole 37, PIN probe PIN 38, PIN bonding wire portion 39, anodal contact shell fragment 4, contact convex part 41, joint 42, anodal shell fragment connecting portion 5, joint lug 51, negative pole shell fragment connecting portion 6, negative pole welding wire portion 61, dorsal scale 7, second spacing groove 71, PIN probe hole 8 of stepping down, ground connection shell 9, the portion of bending 91, wedge convex part 92, plug 10, PIN pinhole 101, annular groove 102.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 to 8, a DC socket includes an insulating housing 1, a jack 11 is disposed in the insulating housing 1, and a plurality of negative contact spring pieces 2 are circumferentially disposed on an inner wall of the jack 11;

anodal connecting seat 3, anodal connecting seat 3 set up at 1 rear end of insulating casing and with 1 joint of insulating casing, be equipped with PIN needle 31 on the front surface of anodal connecting seat 3, PIN needle 31 stretches into in the jack 11, be equipped with a plurality of joint grooves 32 on PIN needle 31's the periphery wall, the joint has a plurality of anodal contact shell fragments 4 in the joint groove 32, be equipped with contact convex part 41 on the 4 external surfaces of anodal contact shell fragment.

As the preferred scheme, still include anodal shell fragment connecting portion 5, anodal shell fragment connecting portion 5 is annular sheet structure, and is a plurality of the one end of anodal contact shell fragment 4 all with anodal shell fragment connecting portion 5 fixed connection, anodal connecting seat 3 is equipped with anodal hole 33 of stepping down to supply anodal contact shell fragment 4 to pass and stretch into in the joint groove 32, anodal shell fragment connecting portion 5 can with anodal hole 33 joint of stepping down, the other end of anodal contact shell fragment 4 is equipped with joint 42, the tip of joint 42 can the butt on the inner wall of joint groove 32. Through anodal shell fragment connecting portion 5 and the anodal joint cooperation of stepping down hole 33, carry on spacing fixed to anodal contact shell fragment 4 for anodal contact shell fragment 4 is difficult not hard up, and joint 42 butt is on joint groove 32 inner wall, makes anodal contact shell fragment 4 difficult the rotation, is difficult for appearing contact failure's phenomenon.

As a preferred scheme, be equipped with anodal draw-in groove 34 on the anodal hole 33 inner wall of stepping down, 5 surfaces of anodal shell fragment connecting portion correspond anodal draw-in groove 34 is equipped with the joint lug 51 of looks adaptation, joint lug 51 can be gone into in the anodal draw-in groove 34. Through the joint cooperation of joint lug 51 and anodal draw-in groove 34 for anodal shell fragment connecting portion 5 and anodal connecting seat 3 joint, connection structure is simple, and firm.

Preferably, a plurality of buckles 35 are arranged on the surface of the positive electrode connecting seat 3 close to the insulating housing 1, the insulating housing 1 is provided with adaptive buckling holes 12 corresponding to the buckles 35, and the buckles 35 are clamped in the buckling holes 12. Through the cooperation of buckle 35 and the joint of detaining hole 12 for anodal connecting

seat

3 and 1 joint of insulating casing are convenient for install anodal connecting seat 3.

As the preferred scheme, still include negative pole shell fragment connecting portion 6, negative pole shell fragment connecting portion 6 is annular sheet structure, the one end and a plurality of negative pole contact shell fragment 2 fixed connection of negative pole shell fragment connecting portion 6, correspond on the internal perisporium of jack 11 negative pole contact shell fragment 2 is equipped with first spacing groove 13, the other end fixedly connected with negative pole welding wire portion 61 of negative pole shell fragment connecting portion 6, it is equipped with negative pole hole 36 to correspond negative pole welding wire portion 61 on the anodal connecting seat 3, negative pole hole 36 can restrict negative pole welding wire portion 61 and rotate around the axis of jack 11. Through the cooperation use of negative pole shell fragment connecting portion 6, first spacing groove 13, negative pole welding wire portion 61 and negative pole hole 36 of stepping down, first spacing groove 13 is used for injecing the position of negative pole contact shell fragment 2 in jack 11, and negative pole hole 36 of stepping down is used for injecing negative pole welding wire portion 61 and negative pole contact shell fragment 2's position, and difficult not hard up has the installation simply, stable in structure's advantage.

As preferred scheme, the inside of PIN needle 31 is equipped with mounting hole 37 along PIN needle 31 length direction, the joint has PIN probe 38 in the mounting hole 37, the one end of PIN probe 38 is equipped with PIN bonding wire portion 39, positive pole connecting seat 3 rear surface joint has dorsal scale 7, PIN probe abdicating hole 8 has all been seted up on dorsal scale 7 and positive pole connecting seat 3 for PIN probe 38 passes and makes PIN bonding wire portion 39 joint outside dorsal scale 7, PIN probe abdicating hole 8 can restrict PIN bonding wire portion 39 and rotate around the axis of PIN needle 31. Through the cooperation use of mounting hole 37, PIN probe PIN 38, PIN bonding wire portion 39, dorsal scale 7 and PIN probe PIN hole 8 of stepping down for PIN needle 31 is more firm, and is difficult for not hard up, drops, and PIN probe PIN 38 can cut off the power supply, carries out signal detection.

Preferably, a grounding shell 9 is arranged on the surface of the insulating shell 1, and the grounding shell 9 is a metal shell; the one end of ground connection shell 9 is equipped with a plurality of portions 91 of bending, the terminal surface of anodal connecting seat 3 and dorsal scale 7 all be equipped with the corresponding second spacing groove 71 of the portion 91 of bending, bend 91 butt in on the lateral wall of second spacing groove 71, insulating casing 1 upper surface is equipped with spacing draw-in groove 14, correspond on the ground connection shell 9 the position of spacing draw-in groove 14 is equipped with wedge convex part 92, wedge convex part 92 can the joint in spacing draw-in groove 14 to restriction ground connection shell 9 is deviate from insulating casing 1. Grounding shell 9 sets up to have the effectual advantage of shielding for metal casing, and during installation grounding shell 9, insulating shell 1 imbeds grounding shell 9, and portion 91 of bending, spacing draw-in groove 14 and wedge convex part 92 are used for injecing insulating shell 1's position, have the installation simply, stable in structure's advantage.

The utility model discloses a working method as follows:

referring to fig. 1 to 9, in use, a plug 10 shown in fig. 8 is inserted into a jack 11 of an insulating housing 1 of a DC socket, a plurality of negative contact spring pieces 2 on an inner peripheral wall of the jack 11 abut against an outer peripheral wall of the plug 10, a PIN 31 is inserted into a PIN hole 101 of the plug 10, a positive contact spring piece 4 on an outer peripheral wall of the PIN 31 abuts against an inner peripheral wall of the PIN hole 101, contact convex portions 41 on the positive contact spring pieces 4 are fastened and fixed with an annular groove 102 on the inner peripheral wall of the PIN hole 101 to form a plurality of contact point contacts, so that the plug 10 is more stable in contact with the DC socket, the positive contact spring piece 4 is clamped in a clamping groove 32 of the PIN 31, and a clamping head 42 abuts against an inner wall of the clamping groove 32, when an elastic force of any one positive contact spring piece is reduced, the contact convex portion 41 can still be in contact with the inner peripheral wall of the PIN hole 101, a situation of poor contact is not easy to occur, and the negative contact spring pieces 2 and the positive contact piece 4 both adopt a multi-spring piece structure arranged in a circumferential direction, which can improve input and output of a load.

The present invention has been described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A DC outlet, characterized by: comprises that

The insulation structure comprises an insulation shell (1), wherein a jack (11) is arranged in the insulation shell (1), and a plurality of negative contact elastic sheets (2) are circumferentially arranged on the inner wall of the jack (11);

anodal connecting seat (3), anodal connecting seat (3) set up in insulating casing (1) rear end and with insulating casing (1) joint, be equipped with PIN needle (31) on the front surface of anodal connecting seat (3), during PIN needle (31) stretched into jack (11), be equipped with a plurality of joint grooves (32) on the periphery wall of PIN needle (31), the joint has a plurality of anodal contact shell fragments (4) in joint groove (32), be equipped with contact convex part (41) on anodal contact shell fragment (4) surface.

2. A DC outlet according to claim 1, wherein: still include anodal shell fragment connecting portion (5), anodal shell fragment connecting portion (5) are annular sheet structure, and are a plurality of the one end of anodal contact shell fragment (4) all with anodal shell fragment connecting portion (5) fixed connection, anodal connecting seat (3) are equipped with anodal hole (33) of stepping down to supply anodal contact shell fragment (4) to pass and stretch into in joint groove (32), anodal shell fragment connecting portion (5) can with anodal hole (33) joint of stepping down, the other end of anodal contact shell fragment (4) is equipped with joint (42), the tip of joint (42) can the butt on the inner wall of joint groove (32).

3. A DC outlet according to claim 2, wherein: be equipped with anodal draw-in groove (34) on anodal hole (33) the inner wall of stepping down, anodal shell fragment connecting portion (5) surface corresponds anodal draw-in groove (34) are equipped with joint lug (51) of looks adaptation, joint lug (51) can block into in anodal draw-in groove (34).

4. A DC outlet according to claim 1, wherein: the surface of the anode connecting seat (3) close to the insulating shell (1) is provided with a plurality of buckles (35), the insulating shell (1) corresponds to the buckle holes (12) formed in the buckles (35) in a matched mode, and the buckles (35) are clamped in the buckle holes (12).

5. A DC outlet according to claim 1, wherein: still include negative pole shell fragment connecting portion (6), negative pole shell fragment connecting portion (6) are annular sheet structure, and the one end and a plurality of negative pole shell fragment connecting portion (6) negative pole contact shell fragment (2) fixed connection, correspond on the internal perisporium of jack (11) negative pole contact shell fragment (2) are equipped with first spacing groove (13), the other end fixedly connected with negative pole welding wire portion (61) of negative pole shell fragment connecting portion (6), it is equipped with negative pole hole of stepping down (36) to correspond negative pole welding wire portion (61) on anodal connecting seat (3), negative pole hole of stepping down (36) can restrict negative pole welding wire portion (61) and rotate around the axis of jack (11).

6. A DC outlet according to claim 1, wherein: the inside of PIN needle (31) is equipped with mounting hole (37) along PIN needle (31) length direction, the joint has PIN probe needle (38) in mounting hole (37), the one end of PIN probe needle (38) is equipped with PIN bonding wire portion (39), anodal connecting seat (3) rear surface joint has dorsal scale (7), all seted up PIN probe needle hole (8) of stepping down on dorsal scale (7) and anodal connecting seat (3) and passed and make PIN bonding wire portion (39) joint outside dorsal scale (7) in order to supply PIN probe needle (38), PIN probe needle hole (8) of stepping down can restrict PIN bonding wire portion (39) and rotate around the axis of PIN needle (31).

7. A DC outlet according to claim 6, wherein: a grounding shell (9) is arranged on the surface of the insulating shell (1), and the grounding shell (9) is a metal shell; the one end of ground connection shell (9) is equipped with a plurality of portions of bending (91), the terminal surface of anodal connecting seat (3) and dorsal scale (7) all be equipped with the corresponding second spacing groove (71) of portion of bending (91), bend portion (91) butt in on the lateral wall of second spacing groove (71), insulating casing (1) upper surface is equipped with spacing draw-in groove (14), correspond on ground connection shell (9) the position of spacing draw-in groove (14) is equipped with wedge convex part (92), wedge convex part (92) can the joint in spacing draw-in groove (14) to restraint ground connection shell (9) are deviate from on insulating casing (1).