CN218828026U - Heavy current DC supply socket - Google Patents

Abstract

The utility model discloses a DC supply socket specifically is a heavy current DC supply socket, a heavy current DC supply socket includes insulating casing, base, add power piece, negative pole shell fragment and anodal piece, the base is fixed to be set up in insulating casing the place ahead, be provided with installation space in the base, the preceding first recess and the second recess that are provided with of base, be provided with first mounting groove in the first recess, the preceding center department of base sets up at the connecting piece, be provided with the mounting hole that runs through on the connecting piece, the rear side of connecting piece is provided with the spacing groove of second, the preceding second mounting groove that is provided with of base, add power piece grafting in first mounting groove, the negative pole shell fragment sets up in the second mounting groove, anodal piece sets up in installation space, through integrative negative pole shell fragment and the power piece that takes shape, the anodal piece that takes shape of bending more enough effectually prevents supply socket and takes place the phenomenon of striking sparks in the twinkling of an eye in the middle of an eye in the insertion process.

Description

Heavy current DC supply socket

Technical Field

The utility model relates to a supply socket technical field, especially a heavy current DC supply socket.

Background

A socket matched with a DC power supply consists of a transverse socket, a longitudinal socket, an insulating base, two forked contact elastic sheets and a directional key slot, wherein the two forked contact elastic sheets are positioned at the central part of the base and are arranged in a longitudinal and transverse mode and are not connected with each other. One end of the forked contact elastic sheet is a wiring port, which is exposed on the top surface of the base cylinder and used for connecting an input power supply soft wire or a soft cable, and the other end of the forked contact elastic sheet consists of two elastic arms which are interconnected by a base body and are arranged in the insulating base jack in the insertion direction of the DC plug and used for a computer display, so that the computer display can normally work.

See patent publication No. CN208284673U, which mainly discloses a detachable DC power socket, comprising a socket body and a center pin; a blind hole is dug at the plugging end of the socket body, a front elastic sheet is arranged at the port of the blind hole, and the central needle penetrates through a first through hole formed in the socket body to enable one end of the central needle to be located in the blind hole; a groove is dug in the socket main body, a spring stop piece capable of moving relative to the groove is arranged in the groove, and the spring stop piece can clamp the central needle to enable the central needle to be detachable on the socket main body; a fixed cavity is dug at the opposite end of the plugging end of the socket body, an elastic sheet is arranged in the fixed cavity, and one end of the elastic sheet is clamped in the fixed cavity and can be detachably mounted on the DC socket body; the utility model discloses only need with central faller inserts the blind hole with in the first perforation, will the shell fragment inserts fixed die cavity is interior, has advantages such as simple structure, loading and unloading are swift, easy maintenance and radiating efficiency height

In the above scheme, DC supply socket structure is more to the shell fragment directly sets up in fixed die cavity, makes the shell fragment produce the displacement easily in fixed die cavity, and the negative pole of socket only has the shell fragment simultaneously, and the area of contact of negative pole is less, makes supply socket easy the appearance phenomenon of striking sparks in the twinkling of an eye when inserting the in-process, influences supply socket's safety in utilization.

In the center of the prior art, the positive copper column and the terminal of the positive piece are usually riveted, and the contact area of the negative pole is small, so that the power socket can only pass through the current of about 12V voltage 5A, and once a large current passes through, the pins of the power socket are easily burnt out due to the overlarge current.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that the phenomenon of striking sparks appears in the twinkling of an eye at the in-process that inserts among the prior art supply socket, provide a heavy current DC supply socket, include

An insulating housing;

the insulating shell comprises a rectangular mounting space consisting of an upper side wall, a right side wall, a left side wall and a rear side wall, and the bottoms of the right side wall and the left side wall respectively extend downwards to form two guide angles; a through hole is formed in the center of the rear side wall;

a base which is fixedly inserted and arranged at the front side of the insulating shell,

the base is internally provided with an installation space, and the installation space penetrates through the base and is arranged corresponding to the through hole;

a first groove and a second groove are arranged on the front side surface of the base, the first groove is positioned above the second groove, a first mounting groove is formed in the first groove, and the first mounting groove is communicated with the mounting space; the front surface of the base is provided with two first limiting grooves, the two first limiting grooves are oppositely arranged at the inner sides of the first mounting grooves, and the inner sides of the rear parts of the first mounting grooves are provided with contact grooves;

the center of the front face of the base is arranged on a connecting piece, a through mounting hole is formed in the connecting piece, a second limiting groove is formed in the rear side of the connecting piece, a limiting piece is integrally arranged below the connecting piece, and a vertical clamping groove is formed in the center of the front face of the limiting piece;

the front surface of the base is provided with a second mounting groove, the second mounting groove is positioned below the limiting piece and is communicated with the mounting space, a third limiting groove is arranged in the second mounting groove and is positioned on the bottom surface of the inner side of the base, and a notch is formed in the center of the front surface of the second mounting groove;

the reinforcing plate comprises a fixed end and a contact end, one side of the fixed end is connected with the contact end, the reinforcing plate is inserted in the first mounting groove, the fixed end is positioned in the first limiting groove, and the contact end is positioned in the contact groove;

the negative electrode elastic piece comprises a clamping end, a negative electrode pin and a connecting end, the negative electrode pin is vertically arranged on one side of the clamping end, the connecting end is arranged on the other side of the clamping end, the negative electrode elastic piece is arranged in the second mounting groove and is abutted to the connecting piece, the clamping end is positioned in the second limiting groove and is contacted with the bottom surface of the base, the negative electrode pin is positioned in the notch, and the upper surface of the connecting end is contacted with the bottom of the connecting piece;

the positive pole piece, positive pole piece includes central needle, extension and anodal pin, one side and the extension of central needle are connected, and the junction is provided with spacing boss, anodal pin sets up the one end at the extension perpendicularly, positive pole piece sets up in installation space, central needle is located installation space, spacing boss is located the spacing groove of second, the extension is located the mounting hole, anodal pin is located the draw-in groove, positive pole piece is for bending integrated into one piece.

Preferably, a first side wall and a second side wall extend from two sides of the rear side wall, one side of the first side wall is in contact with the rear side face of the left side wall, and one side of the second side wall is in contact with the rear side face of the right side wall.

Preferably, be provided with first fixed slot on right side wall and the left side wall respectively, be provided with first fixed block on the both sides wall of base respectively, first fixed slot corresponds the block with first fixed block and is connected.

Preferably, the first side wall and the second side wall are correspondingly provided with two second fixing blocks respectively, two second fixing grooves are formed in the two side walls of the base respectively, the two second fixing grooves are located on the rear side of the first fixing block, and the second fixing blocks are correspondingly clamped and connected with the second fixing grooves.

Preferably, be provided with three third fixed block on the back lateral wall, three third fixed block evenly is located the through-hole, the rear portion of base is provided with three third fixed slot, the third fixed block corresponds the setting with the third fixed slot, and is located the installation space, the third fixed block corresponds the block with the third fixed slot and is connected.

Preferably, the stress application sheet is provided with a bending part, the bending part is positioned between the fixed end and the connecting end, and the bending part faces to the center of the installation space.

Preferably, the negative pole elastic piece is provided with a bending part, the bending part is located between the clamping end and the connecting end, and the bending part faces to the center of the installation space.

Preferably, the bottom of the base is provided with a positioning boss.

Preferably, the insulating shell, the stressing piece, the negative elastic piece and the positive piece are all integrally arranged.

The utility model has the advantages that:

1. the integrally formed negative pole elastic piece is arranged, and the clamping end and the connecting end of the negative pole elastic piece are uniformly connected with the base, so that the base and the negative pole elastic piece are integrally a negative pole, the area of the negative pole is increased, and the instant ignition phenomenon in the inserting process of the power socket is effectively prevented;

2. the reinforcing sheet is arranged in the base, and two ends of the reinforcing sheet are connected with the base at the same time, so that the area of the negative electrode is further increased, and the phenomenon of instantaneous ignition of the power socket can be further avoided;

3. the power of the power socket can be effectively improved by arranging the integrally bent central pin in the base.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of the insulating housing of the present invention;

FIG. 4 is a schematic view of the base of the present invention

Fig. 5 is a rear view of the base of the present invention;

fig. 6 is a front view of the base of the present invention;

fig. 7 is a cross-sectional view of the base of the present invention;

fig. 8 is a schematic view of the force applying sheet of the present invention;

fig. 9 is a schematic view of a negative electrode spring plate of the present invention;

fig. 10 is a schematic view of the positive electrode member of the present invention.

In the figure, 1, an insulating housing; 11. an upper sidewall; 12. a right side wall; 13. a left side wall; 14. a rear sidewall; 141. a through hole; 15. a first side wall; 16. a second side wall; 101. a first fixing groove; 102. a second fixed block; 103. a third fixed block; 104. leading angles; 2. a base; 21. an installation space; 22. a first groove; 23. a second groove; 24. a first mounting groove; 241. a first limit groove; 242. a contact groove; 25. a connecting member; 251. mounting holes; 252. a second limit groove; 26. a limiting member; 261. a card slot; 27. a second mounting groove; 271. a third limiting groove; 272. a notch; 201. a first fixed block; 202. a second fixing groove; 203. a third fixing groove; 3. a stress applying sheet; 31. a fixed end; 32. a bending part; 33. a contact end; 4. a negative pole elastic sheet; 41. a clamping end; 42. a negative electrode pin; 43. a connecting end; 44. a bending section; 5. a positive electrode member; 51. a central needle; 52. an extension portion; 53. a limiting boss; 54. a positive electrode pin; 6. and (6) positioning the boss.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

As shown in fig. 1, the vertical, horizontal, front, and rear directions described herein correspond to the vertical, horizontal, front, and rear reference planes in fig. 1, with the same plane as the positive electrode material 5 and the base 2 as the reference plane.

Example 1

As shown in the figures 1-2 of the drawings,

a high-current DC power socket comprises an insulating shell 1, a base 2, a stressing piece 3, a negative elastic piece 4 and a positive piece 5;

in the scheme, the insulating shell 1 is used for insulating the circuit board, the conductor, the base 2, the reinforcing sheet 3, the negative elastic sheet 4 and the positive piece 5, the reinforcing sheet 3 and the negative elastic sheet 4 are integrally formed, the instant sparking phenomenon of the plug in the inserting process can be effectively prevented by increasing the contact area of the negative electrode, and the load power of the product can be improved slightly by integrally forming the positive piece 5 through bending;

as shown in figure 3 of the drawings,

the insulating housing 1 comprises a rectangular mounting space 21 consisting of an upper side wall 11, a right side wall 12, a left side wall 13 and a rear side wall 14, wherein the bottoms of the right side wall 12 and the left side wall 13 are respectively provided with two guide angles 104 in a downward extending manner; the center of the rear sidewall 14 is provided with a through hole 141,

in the above scheme, the pin is used for fixing and limiting the position of the socket on the circuit board, and the through hole 141 is used for dissipating heat in the power socket, so that the normal use of the power socket due to the overhigh temperature is prevented.

As shown in the figures 4-7 of the drawings,

the base 2, the fixed grafting of base 2 sets up in the front side of insulating casing 1, and the effect of base 2 is used for placing reinforcing piece 3, negative pole shell fragment 4 and positive pole piece 5.

An installation space 21 is arranged in the base 2, and the installation space 21 penetrates through the base 2 and is arranged corresponding to the through hole 141.

In the above scheme, installation space 21's effect carries out quick installation to anodal 5 to installation space 21 and through-hole 141 are for corresponding the setting, can directly dispel the heat through anodal 5 in through-hole 141 in installation space 21, and rear wall 14 also can form insulation protection to the rear portion of base 2 simultaneously, improves supply socket's safety in utilization.

A first groove 22 and a second groove 23 are arranged on the front side surface of the base 2, the first groove 22 is positioned above the second groove 23, a first mounting groove 24 is arranged in the first groove 22, and the first mounting groove 24 is communicated with the mounting space 21; the front side surface of the base 2 is provided with two first limiting grooves 241, the two first limiting grooves 241 are oppositely arranged on the inner side of the first mounting groove 24, and the inner side of the rear part of the first mounting groove 24 is provided with a contact groove 242.

In the above scheme, the effect of first mounting groove 24 is used for installing the thrust piece 3 to restrict the thrust piece 3 through first spacing groove and contact slot 242, first spacing groove 241 also can reduce the phenomenon of striking sparks of plug in the inserting process to the area of contact of increase thrust piece 3 and base 2 simultaneously.

The center of the front side of the base 2 is arranged on the connecting piece 25, the connecting piece 25 is provided with a through mounting hole 251, the rear side of the connecting piece 25 is provided with a second limiting groove 252, the lower part of the connecting piece 25 is integrally provided with a limiting piece 26, and the front center of the limiting piece 26 is provided with a vertical clamping groove 261.

In the above solution, the connecting element 25 is used for fixing the mounting position of the positive pole piece 5, the central pin 51 is placed in the mounting hole 251, the bending processing is performed through the piece extension part 52, and the central pin 51 is limited through the second limiting groove 252 and the clamping groove 261, so that the central pin 51 is prevented from being displaced in the base 2 when the power socket is mounted, and the normal use of the power socket is prevented from being influenced.

The front side surface of the base 2 is provided with a second mounting groove 27, the second mounting groove 27 is located below the limiting member 26, the second mounting groove 27 is communicated with the mounting space 21, a third limiting groove 271 is arranged in the second mounting groove 27, the third limiting groove 271 is located on the inner bottom surface of the base 2, and a notch 272 is arranged at the front center of the second mounting groove 27.

In the above scheme, the effect of second mounting groove 27 is to install negative pole shell fragment 4 to inject the position of negative pole shell fragment 4 in base 2 bottom through third spacing groove 271, increase the basal area of negative pole shell fragment 4 and base 2, and breach 272 also can further inject the mounted position of negative pole shell fragment 4, place negative pole shell fragment 4 and produce the displacement in base 2, influence the normal use of socket.

As shown in the figures 8-10 of the drawings,

the reinforcing plate 3 comprises a fixed end 31 and a contact end 33, one side of the fixed end 31 is connected with the contact end 33, the reinforcing plate 3 is inserted into the first mounting groove 24, the fixed end 31 is positioned in the first limiting groove 241, and the contact end 33 is positioned in the contact groove 242;

in the above scheme, the reinforcing plate 3 is integrally formed, and the fixed end 31 and the contact end 33 of the reinforcing plate 3 are both in contact with the base 2, so that the contact area of the negative electrode is increased, and the phenomenon of instant sparking of the plug in the insertion process is prevented.

The negative electrode elastic sheet 4 comprises a clamping end 41, a negative electrode pin 42 and a connecting end 43, the negative electrode pin 42 is vertically arranged on one side of the clamping end 41, the connecting end 43 is arranged on the other side of the clamping end, the negative electrode elastic sheet 4 is arranged in the second mounting groove 27 and is abutted to the connecting piece 25, the clamping end 41 is located in the second limiting groove 252 and is in contact with the bottom surface of the base 2, the negative electrode pin 42 is located in the notch 272, and the upper surface of the connecting end 43 is in contact with the bottom of the connecting piece 25.

In the above scheme, negative pole shell fragment 4 is as an organic whole and forms, puts at second spacing groove 252 through holder 41, carries on spacingly through second spacing groove 252 to negative pole shell fragment 4, can be convenient for install negative pole shell fragment 4, and breach 272 carries on spacingly to negative pole pin 42, can be convenient for be connected socket and circuit board to connect and the contact of connecting piece 25, can increase the area of contact of negative pole, prevent the phenomenon of striking sparks in the twinkling of an eye.

The positive pole piece 5 comprises a central needle 51, an extending portion 52 and a positive pole pin 54, one side of the central needle 51 is connected with the extending portion 52, a limiting boss 53 is arranged at the connection position, the positive pole pin 54 is vertically arranged at one end of the extending portion 52, the positive pole piece 5 is arranged in the installation space 21, the central needle 51 is located in the installation space 21, the limiting boss 53 is located in a second limiting groove 252, the extending portion 52 is located in the installation hole 251, and the positive pole pin 54 is located in the clamping groove 261.

In the above solution, the positive electrode 5 is bent and formed integrally, and is matched with the second limiting groove 252 through the limiting boss 53 and the extending portion 52 is disposed in the mounting hole 251, and at the same time, the position of the positive electrode 5 in the mounting space 21 is limited, and the positive electrode pin 54 is located in the clamping groove 261, and the angle of the positive electrode 5 in the base 2 is limited through the clamping groove 261.

A first side wall 15 and a second side wall 16 extend from two sides of the rear side wall 14, one side of the first side wall 15 is contacted with the rear side of the left side wall 13, and one side of the second side wall 16 is contacted with the rear side of the right side wall 12

In the above solution, the first side wall 15 and the second side wall 16 are used as better members to be connected with the base 2, so as to improve the insulating performance of the base 2.

The right side wall 12 and the left side wall 13 are respectively provided with a first fixing groove 101, the two side walls of the base 2 are respectively provided with a first fixing block 201, and the first fixing groove 101 is correspondingly clamped and connected with the first fixing block 201.

In the above scheme, the first fixing groove 101 can preliminarily fix and position the insulating housing 1 and the base 2, and the base 2 is prevented from displacing when the housing is connected with the base 2.

The first side wall 15 and the second side wall 16 are respectively and correspondingly provided with two second fixing blocks 102, two side walls of the base 2 are respectively and correspondingly provided with two second fixing grooves 202, the two second fixing grooves 202 are located at the rear side of the first fixing block 201, and the second fixing blocks 102 are correspondingly connected with the second fixing grooves 202 in a clamping manner.

In the above-mentioned scheme, the effect of second fixed block 102 and second fixed slot 202 is that carry out the secondary to base 2 both sides and fix, makes being connected that the both sides and insulating casing 1 of base 2 can be better, improves the security performance of plug in the use, and second fixed block 102 passes through the block with second fixed slot 202 simultaneously and is connected, the installation of base 2 and shell of being more convenient for.

Be provided with three third fixed block 103 on the back lateral wall 14, third fixed block 103 evenly is located through-hole 141, the rear portion of base 2 is provided with three third fixed slot 203, third fixed block 103 corresponds the setting with third fixed slot 203, and is located installation space 21, third fixed block 103 corresponds the block with third fixed slot 203 and is connected.

In the above-mentioned scheme, three third fixed blocks 103 are evenly distributed on the inner side of the through hole 141, and the third fixing groove 203 is disposed in the installation space 21 corresponding to the third fixed block 103, and the rear side wall 14 can be better connected with the rear portion of the base 2 by engaging and connecting the third fixed block 103 with the second fixed block 102.

Be provided with portion 32 of bending on the gusset 3, portion 32 of bending is located between stiff end 31 and link 43, portion 32 of bending is towards the center of installation space 21, and portion 32 of bending can further increase the area of gusset 3, increases the area of gusset 3 at 2 abilities of base, improves the security performance of plug.

The negative pole spring plate 4 is provided with a bending part 44, the bending part 44 is positioned between the clamping end 41 and the connecting end 43, the bending part 44 faces the center of the installation space 21, and the bending part 32 can increase the area of the negative pole and prevent the instant sparking phenomenon of the plug in the insertion.

The bottom of base 2 is provided with location boss 6, and location boss 6 can be convenient for the plug and install on the circuit board to can prevent that the plug from appearing becoming flexible on the circuit board.

The utility model discloses a working process does:

when the staff inserts power conductor in the base 2, the negative pole of conductor contacts with the negative pole shell fragment 4 in the second mounting groove 27, and through negative pole pin 42 and negative pole conductor looks butt, the exposed core 41 in the negative pole shell fragment 4 is installed in third spacing groove 271, make negative pole shell fragment 4 contact with the bottom of base 2, and the link 43 of negative pole shell fragment 4 and the connecting piece 25 looks butt in the base 2, it is fixed to push negative pole shell fragment 4, make base 2 and negative pole shell fragment 4 intercommunication, and the flexion 44 that sets up in the negative pole shell fragment 4 is towards the center of installation space 21, through the portion of bending 32 like this, make the area of contact of negative pole shell fragment 4 and conductor negative pole increase, prevent that power socket from appearing the phenomenon of striking sparks in the twinkling of an eye inserting.

The gusset 3 is inserted in the first mounting groove 24, and the fixed end 31 of the gusset 3 is arranged in the first limit groove 241, the contact end 33 is connected with the contact groove 242 at the rear side of the first mounting groove 24 in an abutting manner, the gusset 3 is fixed through the first limit groove 241 and the contact groove 242, and the connecting end of the gusset 3 is connected with the base 2, so that the contact area of the negative electrode can be further increased, and the load power of the direct-current power supply socket is improved.

The positive pole setting of conductor is in installation space 21 in base 2, in spacing boss 53 through setting up on anodal 5 and the second spacing groove 252 of connecting piece 25 rear side, and fix anodal 5's position, extension 52 sets up in mounting hole 251, and the front end of extension 52 and anodal pin 54 are through bending the processing, make negative pole pin 42 can fall into the preceding draw-in groove 261 that sets up of locating part 26, carry out angle restriction to negative pole pin 42 through draw-in groove 261, make anodal 5's angle remain unanimous all the time, and anodal 5 is the shaping of bending as an organic whole, can be convenient for improve supply socket's load power.

Through the negative pole shell fragment 4 and the 2 contacts of base that integrative setting and the integrative positive pole piece 5 that takes shape of bending: the power of the power socket is increased from the load rate of 12V voltage and 5A current to the load rate of 20V voltage and 7A current, the load of the power socket can be effectively improved, and the phenomenon of sparking of the power socket in the moment of insertion is effectively prevented.

The above-mentioned embodiments only express the specific implementation manner of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (9)

1. A high current DC power socket, characterized in that: comprises that

An insulating housing (1);

the insulation shell (1) comprises a rectangular installation space (21) composed of an upper side wall (11), a right side wall (12), a left side wall (13) and a rear side wall (14), and the bottoms of the right side wall (12) and the left side wall (13) extend downwards to be provided with two guide angles (104); a through hole (141) is formed in the center of the rear side wall (14);

a base (2), wherein the base (2) is fixedly inserted and arranged at the front side of the insulating shell (1),

an installation space (21) is arranged in the base (2), and the installation space (21) penetrates through the base (2) and is arranged corresponding to the through hole (141);

a first groove (22) and a second groove (23) are formed in the front side face of the base (2), the first groove (22) is located above the second groove (23), a first installation groove (24) is formed in the first groove (22), and the first installation groove (24) is communicated with the installation space (21); two first limiting grooves (241) are formed in the front face of the base (2), the two first limiting grooves (241) are arranged on the inner sides of the first mounting grooves (24) in an opposite mode, and contact grooves (242) are formed in the inner sides of the rear portions of the first mounting grooves (24);

the center of the front side face of the base (2) is arranged on a connecting piece (25), a through mounting hole (251) is formed in the connecting piece (25), a second limiting groove (252) is formed in the rear side of the connecting piece (25), a limiting piece (26) is integrally arranged below the connecting piece (25), and a vertical clamping groove (261) is formed in the center of the front face of the limiting piece (26);

a second mounting groove (27) is formed in the front side face of the base (2), the second mounting groove (27) is located below the limiting piece (26), the second mounting groove (27) is communicated with the mounting space (21), a third limiting groove (271) is formed in the second mounting groove (27), the third limiting groove (271) is located on the bottom face of the inner side of the base (2), and a notch (272) is formed in the center of the front face of the second mounting groove (27);

the reinforcing plate (3) comprises a fixed end (31) and a contact end (33), one side of the fixed end (31) is connected with the contact end (33), the reinforcing plate (3) is inserted into the first mounting groove (24), the fixed end (31) is located in the first limiting groove (241), and the contact end (33) is located in the contact groove (242);

the negative elastic piece (4) comprises a clamping end (41), a negative pin (42) and a connecting end (43), the negative pin (42) is vertically arranged on one side of the clamping end (41), the connecting end (43) is arranged on the other side of the clamping end, the negative elastic piece (4) is arranged in the second mounting groove (27) and is abutted to the connecting piece (25), the clamping end (41) is positioned in the second limiting groove (252) and is contacted with the bottom surface of the base (2), the negative pin (42) is positioned in the notch (272), and the upper surface of the connecting end (43) is contacted with the bottom of the connecting piece (25);

anodal spare (5), anodal spare (5) are including central needle (51), extension (52) and anodal pin (54), one side and extension (52) of central needle (51) are connected, and the junction is provided with spacing boss (53), anodal pin (54) set up the one end at extension (52) perpendicularly, anodal spare (5) set up in installation space (21), central needle (51) are located installation space (21), spacing boss (53) are located second spacing groove (252), extension (52) are located mounting hole (251), anodal pin (54) are located draw-in groove (261), anodal spare (5) are for bending integrated into one piece.

2. A high current DC outlet according to claim 1, wherein the rear wall (14) is extended on both sides with a first side wall (15) and a second side wall (16), one side of the first side wall (15) contacting the rear side of the left side wall (13) and one side of the second side wall (16) contacting the rear side of the right side wall (12).

3. A high-current DC power socket according to claim 1, wherein the right side wall (12) and the left side wall (13) are respectively provided with a first fixing groove (101), the two side walls of the base (2) are respectively provided with a first fixing block (201), and the first fixing grooves (101) are correspondingly connected with the first fixing blocks (201) in a clamping manner.

4. A high-current DC power socket according to claim 2, wherein two second fixing blocks (102) are respectively disposed on the first side wall (15) and the second side wall (16), two second fixing grooves (202) are respectively disposed on two side walls of the base (2), the two second fixing grooves (202) are located at the rear side of the first fixing block (201), and the second fixing blocks (102) are correspondingly connected with the second fixing grooves (202) in a clamping manner.

5. A high-current DC power socket according to claim 1, wherein three third fixing blocks (103) are disposed on the rear side wall (14), the three third fixing blocks (103) are uniformly located in the through holes (141), three third fixing grooves (203) are disposed at the rear portion of the base (2), the third fixing blocks (103) are disposed corresponding to the third fixing grooves (203) and located in the installation space (21), and the third fixing blocks (103) are correspondingly connected with the third fixing grooves (203) in a clamping manner.

6. A high-current DC power socket according to claim 1, wherein the reinforcing sheet (3) is provided with a bending portion (32), the bending portion (32) is located between the fixed end (31) and the connecting end (43), and the bending portion (32) faces the center of the mounting space (21).

7. A high current DC power socket according to claim 1, wherein the negative spring (4) is provided with a bent portion (44), the bent portion (44) is located between the clamping end (41) and the connecting end (43), and the bent portion (44) faces the center of the mounting space (21).

8. A high current DC power socket according to claim 1, wherein the base (2) is provided at its bottom with a locating boss (6).

9. A high-current DC power socket as claimed in claim 1, wherein the insulating housing (1), the stressing piece (3), the negative spring (4) and the positive piece (5) are all integrally arranged.

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