CN215933936U

CN215933936U - Low-inductance double-circuit quick plugging connecting piece

Info

Publication number: CN215933936U
Application number: CN202122628451.8U
Authority: CN
Inventors: 赵海疆; 段必聪; 彭新强; 张实丹
Original assignee: Beijing Victory Electric Co ltd
Current assignee: BEIJING WEITONGLI ELECTRIC CO LTD
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-01
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a low-inductance double-circuit quick plugging connecting piece which comprises a male end and a female end, wherein the male end comprises an insulating plate and a socket, and the two opposite sides of the insulating plate are respectively provided with a socket parallel to the insulating plate; the female end comprises a plastic shell main body, a copper shell and a composite flexible contact finger, wherein the plastic shell main body is provided with a mounting groove penetrating through the upper end and the lower end of the plastic shell main body, two opposite sides of the circumferential inner wall of the mounting groove are respectively provided with the copper shell parallel to the mounting groove, the upper end of the copper shell is flush with the upper end of the mounting groove of the plastic shell main body, and the lower end of the copper shell extends downwards to extend out of the mounting groove; the upper end of each copper shell is respectively provided with a composite flexible contact finger, and a certain distance is reserved between the two composite flexible contact fingers; the lower end of the male end penetrates through a gap between the two composite flexible contact fingers and extends out of the mounting groove, and each power strip is in contact with the composite flexible contact fingers on the corresponding side. The advantages are that: the fully integrated double-circuit quick plug ensures that the distance between different phases is reduced to the limit, and the inductance is greatly offset.

Description

Low-inductance double-circuit quick plugging connecting piece

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a low-inductance double-circuit quick plugging connecting piece.

Background

At present, most of electric equipment in the fields of energy, power transmission and transformation, industrial frequency conversion and the like are alternating current equipment, and harmful inductance is generated due to the difference of the phase current of each phase, so that the reduction of the harmful inductance is a technical problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-inductance double-circuit quick plugging connecting piece, so that the problems in the prior art are solved.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a low-inductance double-circuit quick plug-pull connecting piece comprises a male end and a female end, wherein the male end comprises an insulating plate and a plug row, and the two opposite sides of the insulating plate are respectively provided with the plug row parallel to the insulating plate; the female end comprises a plastic shell main body, a copper shell and a composite flexible contact finger, wherein the plastic shell main body is provided with a mounting groove penetrating through the upper end and the lower end of the plastic shell main body, two opposite sides of the circumferential inner wall of the mounting groove are respectively provided with the copper shell parallel to the mounting groove, the upper end of the copper shell is flush with the upper end of the mounting groove of the plastic shell main body, and the lower end of the copper shell extends downwards to extend out of the mounting groove; the upper end of each copper shell is respectively provided with a composite flexible contact finger, and a certain distance is reserved between the two composite flexible contact fingers; the lower end of the male end penetrates through a gap between the two composite flexible contact fingers and extends out of the mounting groove, and each socket is in contact with the composite flexible contact fingers on the corresponding side.

Preferably, the power strip comprises a first connecting part and a second connecting part, and the second connecting part is perpendicular to the first connecting part and is connected to one end of the first connecting part, so that the power strip is in an L shape; the first connecting portion is arranged on one side of the insulating plate in parallel with the insulating plate, and the second connecting portion protrudes and extends outwards along a direction perpendicular to the insulating plate.

Preferably, the two opposite sides of the insulating plate are respectively provided with a fixing groove formed by sinking towards the two opposite sides of the insulating plate, and the width of the fixing groove is smaller than that of the insulating plate; the first connecting portion is correspondingly arranged in the fixing groove, and one side, far away from the insulating plate, of the first connecting portion extends out of the fixing groove.

Preferably, the male end further comprises a heat shrink tube for fixing the power strip on the insulating plate, the heat shrink tube is sleeved on the periphery of one end, close to the second connecting portion, of the first connecting portion, and the inner wall of the heat shrink tube is correspondingly attached and contacted with the first connecting portion and the insulating plate.

Preferably, the mounting grooves comprise a first mounting groove and a second mounting groove which are parallel and mutually communicated, two opposite sides of the circumferential inner wall of the first mounting groove are respectively provided with a copper shell parallel to the first mounting groove, two opposite sides of the circumferential inner wall of the first mounting groove, which is perpendicular to the copper shell, are respectively provided with a second mounting groove, the two second mounting grooves are symmetrically arranged, and the width of the second mounting groove is smaller than that of the first mounting groove; when the lower end of the male end extends into the mounting grooves, two sides of the insulating plate in the length direction correspondingly extend into the two second mounting grooves respectively.

Preferably, the circumferential inner wall of the first mounting groove is perpendicular to the two opposite sides of the copper shell, two convex strips which extend in a protruding manner in a direction away from the side of the copper shell are respectively arranged on the two opposite sides of the copper shell, the convex strips vertically extend in a direction parallel to the second mounting groove, and the second mounting groove is respectively located between the two convex strips on the same side of the second mounting groove.

Preferably, the copper shell comprises a first mounting part and a second mounting part, and the second mounting part is perpendicular to the first mounting part and is connected to one end of the first mounting part, so that the copper shell is L-shaped; the relative both sides of first mounting groove circumference inner wall are provided with a first installation department respectively, the second installation department stretches out the lower extreme of mounting groove is outwards buckled and is extended.

Preferably, two opposite sides of the plastic housing main body are respectively provided with a first fixing hole communicated with the first mounting groove, and the first mounting part is provided with a second fixing hole corresponding to the first fixing hole; the fastener passes first fixed orifices and second fixed orifices, the both sides of first installation department length direction correspond respectively and stretch into between sand grip and the first mounting groove circumference inner wall, the order first installation department is fixed in first mounting groove.

Preferably, one side of first installation department keeping away from first mounting groove circumference inner wall is provided with to being close to the sunken draw-in groove of first mounting groove circumference inner wall, compound flexible touches the finger warp the draw-in groove is fixed on the first installation department.

Preferably, the plastic shell main body is close to the opposite sides of circumference of one end of the second installation part are respectively provided with a recess avoiding groove which is away from the direction of the second installation part, the inner wall of the avoiding groove is in corresponding joint contact with the joint of the first installation part and the second installation part.

The utility model has the beneficial effects that: 1. the integrated installation of different phase current carrying of the two-way channel can be realized, the circuit is quickly opened and closed, the currents between the two ways are not influenced mutually, the inductance in the circuit can be effectively reduced and inhibited during the alternating current circuit, and double poles or double currents with the same polarity can be installed at the same time. 2. The fully integrated double-circuit quick plug ensures that the distance between different phases is reduced to the limit, and the inductance is greatly offset. 3. The novel LED lamp is small in size, simple in structure, convenient and fast to install and capable of being installed in a narrow space. 4. The male end has high insertion fault tolerance, and the chamfer on the second mounting groove can guide the misaligned male end. 5. After the male end is inserted into the female end, the power strip is elastically connected with the composite flexible contact finger, so that the long-time vibration can be borne under the working state, and the connection electrification is not influenced.

Drawings

FIG. 1 is a schematic view of the structure of an insulating plate in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a socket according to an embodiment of the present invention;

FIG. 3 is an assembly view of a power strip and insulator plate in an embodiment of the present invention;

FIG. 4 is an assembly view of the power strip and the insulator plate from another perspective in accordance with an embodiment of the present invention;

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

FIG. 6 is a schematic structural view of a copper shell in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another perspective view of a copper shell according to an embodiment of the present invention;

FIG. 8 is an assembly view of the copper shell and the plastic housing body in an embodiment of the present invention;

FIG. 9 is another perspective assembly view of the copper shell and plastic housing body in accordance with the exemplary embodiment of the present invention;

FIG. 10 is a cross-sectional view of a female end in an embodiment of the present invention;

FIG. 11 is a schematic diagram of a structure for separating a male terminal and a female terminal according to an embodiment of the present invention;

FIG. 12 is a schematic view of an assembly structure of a male terminal and a female terminal according to an embodiment of the present invention.

In the figure: 1. an insulating plate; 11. fixing grooves; 2. a power strip; 21. a first connection portion; 22. a second connecting portion; 23. a first connection hole; 3. heat shrink tubing; 4. a plastic housing main body; 41. a first mounting groove; 42. a second mounting groove; 43. a convex strip; 44. a first fixing hole; 45. chamfering; 46. mounting holes; 47. an avoidance groove; 5. a copper shell; 51. a first mounting portion; 52. a second mounting portion; 53. a second connection hole; 54. a card slot; 55. a second fixing hole; 6. a composite flexible contact finger.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 10, in this embodiment, a low-inductance dual-circuit quick-plugging connector is provided, which includes a male end and a female end, where the male end includes an insulating plate and a socket 2, and two opposite sides of the insulating plate are respectively provided with a socket 2 parallel thereto; the female end comprises a plastic shell main body 4, a copper shell 5 and a composite flexible contact finger 6, wherein a mounting groove penetrating through the upper end and the lower end of the plastic shell main body 4 is formed in the plastic shell main body 4, the copper shell 5 parallel to the mounting groove is respectively arranged on two opposite sides of the circumferential inner wall of the mounting groove, the upper end of the copper shell 5 is flush with the upper end of the mounting groove of the plastic shell main body 4, and the lower end of the copper shell 5 extends downwards to extend out of the mounting groove; the upper end of each copper shell 5 is respectively provided with a composite flexible contact finger 6, and a certain distance is reserved between the two composite flexible contact fingers 6; the lower end of the male end penetrates through a gap between the two composite flexible contact fingers 6 and extends out of the mounting groove, and each socket 2 is in contact with the composite flexible contact fingers 6 on the corresponding side.

As shown in fig. 2, in this embodiment, the power strip 2 includes a first connection portion 21 and a second connection portion 22, and the second connection portion 22 is connected to one end of the first connection portion 21 perpendicular to the first connection portion 21, so that the power strip 2 is L-shaped; the first connection portion 21 is disposed at one side of the insulating plate in parallel with the insulating plate, and the second connection portion 22 protrudes and extends outward in a direction perpendicular to the insulating plate.

The power strip 2 is formed by processing a copper bar with excellent conductivity and small surface roughness, the surface of the power strip is subjected to electroplating treatment to reduce contact resistance and improve corrosion resistance, and the power strip is in contact with and disconnected from the composite flexible contact finger 6 to play a role in keeping and electrically connecting to be closed and disconnected. The number of the socket 2 is two, and the two sockets 2 are separated by the insulating plate, thereby forming a double-path channel.

The junction of first connecting portion 21 and second connecting portion 22 is provided with the fillet, the rounding off between first connecting portion 21 and the second connecting portion 22 of being convenient for, first connecting portion 21 is kept away from the one end of second connecting portion 22 is provided with the fillet, reduces the insertion force when being convenient for male end insert female end.

The second connection portion 22 is provided with a first connection hole 23, and the first connection hole 23 is used for connecting an external conductive member.

As shown in fig. 1, in the present embodiment, two opposite sides of the insulating plate are respectively provided with fixing grooves 11 formed by recessing to the opposite sides, and the width of the fixing grooves 11 is smaller than that of the insulating plate; the first connecting portion 21 is correspondingly disposed in the fixing groove 11, and one side of the first connecting portion 21, which is far away from the insulating plate, extends out of the fixing groove 11.

The insulation board is formed by engineering plastics machine tooling suitable for machine tooling, and fixed slot 11 on the insulation board can insert row 2's installation and location, plays insulating reposition of redundant personnel effect to two rows of inserting 2.

The one end that the insulation board kept away from second connecting portion 22 is provided with the fillet equally, reduces the insertion force when being convenient for male end insert female end.

In the embodiment, as shown in fig. 3 and fig. 4, the male end further includes a heat shrinkable tube 3 for fixing the power strip 2 on an insulating plate, the heat shrinkable tube 3 is sleeved on an outer periphery of one end of the first connecting portion 21 close to the second connecting portion 22, the heat shrinkable tube 3 is closely attached to an outer surface of the first connecting portion 21, and an inner wall of the heat shrinkable tube 3 is correspondingly attached to and in contact with the first connecting portion 21 and the insulating plate. The heat shrinkable tube 3 plays a role in fixing the power strip 2 and the insulating plate together to prevent displacement between the power strip and the insulating plate.

As shown in fig. 5 to 10, in the present embodiment, the plastic housing main body 4 is made of insulating engineering plastic with excellent strength and toughness, and two copper shells 5 can be fixed inside the plastic housing main body so as to be assembled into a female end; when in use, the male end is inserted into the female end.

At least two mounting holes 46 parallel to the mounting grooves are formed in the plastic housing main body 4 along the circumferential direction of the plastic housing main body for fixing the plastic housing main body 4 to the power receiving part.

The mounting grooves comprise a first mounting groove 41 and a second mounting groove 42 which are parallel and mutually communicated, the two opposite sides of the circumferential inner wall of the first mounting groove 41 are respectively provided with a copper shell 5 which is parallel to the first mounting groove, the two opposite sides of the circumferential inner wall of the first mounting groove 41, which is vertical to the copper shell 5, are respectively provided with a second mounting groove 42, the two second mounting grooves 42 are symmetrically arranged, and the width of the second mounting groove 42 is smaller than that of the first mounting groove 41; when the lower end of the male end extends into the mounting grooves, two sides of the insulating plate in the length direction correspondingly extend into the two second mounting grooves 42 respectively.

First mounting groove 41 and second mounting groove 42 intercommunication form the mounting groove, and the setting of second mounting groove 42 is mainly in order to restrict the position of public end in female end, and with the insulation board restriction in second mounting groove 42, avoid public end to take place to rotate or incline in the mounting groove, improve both cooperation accuracies. The first mounting groove 41 is provided for mounting the copper shell 5 and for inserting the male end.

The upper end of the second mounting groove 42 is provided with a chamfer 45, which is convenient for correcting the insertion angle of the male end and also is convenient for the male end to be smoothly inserted.

The inner wall of the circumferential direction of the first mounting groove 41 is perpendicular to the two opposite sides of the copper shell 5, two convex strips 43 which extend in a protruding manner in a direction away from the side of the copper shell are respectively arranged on the two opposite sides of the copper shell, the convex strips 43 vertically extend in a direction parallel to the second mounting groove 42, and each second mounting groove 42 is respectively positioned between the two convex strips 43 on the same side of the second mounting groove 42. The protruding strip 43 is used for better installing the copper shell 5 in the first installation groove 41, the protruding strip 43 can limit the position of the copper shell 5, the copper shell 5 is limited between the inner wall of the first installation groove 41 and the inner wall of the copper shell 5, the copper shell 5 is prevented from deviating when being assembled in the first installation groove 41, and a certain limiting effect is achieved. The protruding strip 43 can also play a certain guiding role, so that the first mounting part 51 can be mounted in the first mounting groove 41 more conveniently without inclination.

In this embodiment, the copper shell 5 includes a first mounting portion 51 and a second mounting portion 52, and the second mounting portion 52 is perpendicular to the first mounting portion 51 and is connected to one end of the first mounting portion 51, so that the copper shell 5 is L-shaped; the two opposite sides of the circumferential inner wall of the first mounting groove 41 are respectively provided with a first mounting part 51, and the second mounting part 52 extends out of the lower end of the mounting groove and is bent outwards.

The copper shell 5 is formed by processing a copper bar with excellent conductivity and surface roughness, the surface of the copper shell is electroplated to reduce contact resistance, the corrosion resistance is obviously improved, and the composite flexible contact finger is fixed inside the copper shell.

The first installation part 51 is far away from one end of the second installation part 52 and is provided with a round angle, and the round angle is convenient for reducing the insertion force when the copper shell 5 is inserted into the installation groove.

The plastic shell main body 4 is close to the opposite sides of circumference of the one end of the second installation part 52 are respectively provided with an avoidance groove 47 which is sunken in the direction away from the second installation part 52, the inner wall of the avoidance groove 47 corresponds to the joint of the first installation part 51 and the second installation part 52 for contact. The avoiding groove 47 limits the position between the copper shell 5 and the plastic shell main body 4, and prevents the position between the plastic shell main body 4 and the copper shell 5 from deflecting due to vibration.

The second connecting portion 22 is provided with a second connecting hole 53, and the second connecting hole 53 is used for connecting an external conductive member.

In this embodiment, two opposite sides of the plastic housing main body 4 are respectively provided with a first fixing hole 44 communicated with the first mounting groove 41, and the first mounting portion 51 is provided with a second fixing hole 55 corresponding to the first fixing hole 44; the fastener passes first fixed orifices 44 and second fixed orifices 55, the both sides of first installation department 51 length direction correspond respectively and stretch into between sand grip 43 and the first mounting groove 41 circumference inner wall, make first installation department 51 is fixed in first mounting groove 41.

In this embodiment, a clamping groove 54 recessed toward the circumferential inner wall of the first mounting groove 41 is disposed on one side of the first mounting portion 51 away from the circumferential inner wall of the first mounting groove 41, and the composite flexible contact finger 6 is fixed on the first mounting portion 51 through the clamping groove 54. The clamping groove 54 is T-shaped, can play a good role in fixing, and stably clamps the composite flexible contact finger 6 on the copper shell 5.

In this embodiment, the composite flexible contact finger 6 uses the prior art (patent No. ZL201821954317.9) "composite flexible contact finger for conductive plug piece"; the composite flexible contact finger 6 comprises a conductive contact and a conductive elastic sheet, and the conductive contact is formed by processing a copper strip with excellent conductivity. The conductive elastic sheet is formed by processing a stainless steel belt with high strength and high elasticity, and the strength and the flexibility of the conductive elastic sheet are improved through heat treatment, so that the contact force action after the conductive contact is electrically connected is maintained. The surface of the composite flexible contact finger 6 is electroplated to reduce contact resistance, improve corrosion resistance and play a role in conducting electricity with the power strip 2.

The plug connecting piece can be installed at a power receiving part, and the conducting bar of the power supply part is matched with other switch mechanisms to form a closed circuit and an open circuit. In order to ensure good contact with the conductive bar, the plug-in connector has a certain range of sliding capacity when in use, and simultaneously allows a certain installation error, thereby ensuring good contact force and enough conductive contact force.

Example two

As shown in fig. 11 and 12, in this embodiment, the assembly process of the plug connector is as follows:

firstly, two copper bars are respectively arranged in two fixing grooves 11 on two sides of an insulating plate, the edges of the copper bars and the edges of the fixing grooves 11 are clamped and fixed by glue, and finally the assembled copper bars and the insulating plate are sleeved by a heat-shrinkable tube 3.

The composite flexible contact fingers 6 are respectively pressed into the clamping grooves 54 of the two copper shells 5, the assembled copper shells 5 are pushed into the plastic shell main body 4 from bottom to top along the first mounting groove 41, are mutually clamped by the raised strips 43 after being in place, and then are fastened and positioned by fastening pieces through the first fixing holes 44 and the second fixing holes 55.

The male end is inserted into the female end along the mounting groove to be assembled into a plug-in connecting piece, and the plug row 2 in the male end is contacted with the composite flexible contact finger 6 in the female end to form a closed loop and conduct electricity. When the misaligned male end is inserted from the upper end of the plastic housing main body 4, the chamfer 45 provided at the upper end of the second mounting groove 42 may automatically align the misaligned male end.

Each plug-in connector is fixed to the power receiving part through the mounting holes 46 by at least two bolts, when the male end is pulled out, the loop is disconnected, and the plastic shell main body 4 is fixed to the power receiving part, so that the plastic shell main body 4 cannot be driven by pulling out the male end, and the plastic shell cannot be separated from the power receiving part.

By adopting the technical scheme disclosed by the utility model, the following beneficial effects are obtained:

the utility model provides a low-inductance double-circuit quick plugging connecting piece which can realize the integrated installation of different-phase current carrying of double-circuit channels, the quick disconnection and the quick closing of the circuits are realized, the currents between the double circuits are not influenced mutually, the inductance in the circuits can be effectively reduced and inhibited during the alternating current circuit, and double poles or double currents with the same polarity can be installed at the same time. The fully integrated double-circuit quick plug ensures that the distance between different phases is reduced to the limit, and the inductance is greatly offset. The plug connecting piece is small in size, simple in structure, convenient and fast to install and capable of being installed in a narrow space. The male end has high insertion fault tolerance, and the chamfer on the second mounting groove can guide the misaligned male end. After the male end is inserted into the female end, the power strip is elastically connected with the composite flexible contact finger, so that the long-time vibration can be borne under the working state, and the connection electrification is not influenced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.

Claims

1. The utility model provides a quick plug connecting piece of dual circuit of low inductance which characterized in that: the insulating board comprises a male end and a female end, wherein the male end comprises an insulating board and a power strip, and the power strip parallel to the insulating board is arranged on two opposite sides of the insulating board respectively; the female end comprises a plastic shell main body, a copper shell and a composite flexible contact finger, wherein the plastic shell main body is provided with a mounting groove penetrating through the upper end and the lower end of the plastic shell main body, two opposite sides of the circumferential inner wall of the mounting groove are respectively provided with the copper shell parallel to the mounting groove, the upper end of the copper shell is flush with the upper end of the mounting groove of the plastic shell main body, and the lower end of the copper shell extends downwards to extend out of the mounting groove; the upper end of each copper shell is respectively provided with a composite flexible contact finger, and a certain distance is reserved between the two composite flexible contact fingers; the lower end of the male end penetrates through a gap between the two composite flexible contact fingers and extends out of the mounting groove, and each socket is in contact with the composite flexible contact fingers on the corresponding side.

2. The low inductance dual circuit quick connect disconnect coupling of claim 1, characterized in that: the power strip comprises a first connecting part and a second connecting part, and the second connecting part is perpendicular to the first connecting part and is connected to one end of the first connecting part, so that the power strip is L-shaped; the first connecting portion is arranged on one side of the insulating plate in parallel with the insulating plate, and the second connecting portion protrudes and extends outwards along a direction perpendicular to the insulating plate.

3. The low inductance dual circuit quick connect disconnect coupling of claim 2, characterized in that: fixing grooves which are formed by sinking towards the opposite sides of the insulating plate are respectively arranged on the two opposite sides of the insulating plate, and the width of each fixing groove is smaller than that of the insulating plate; the first connecting portion is correspondingly arranged in the fixing groove, and one side, far away from the insulating plate, of the first connecting portion extends out of the fixing groove.

4. The low inductance dual circuit quick connect disconnect coupling of claim 3, characterized in that: the male end further comprises a heat-shrinkable tube used for fixing the power strip on the insulating plate, the heat-shrinkable tube is sleeved on the periphery of one end, close to the second connecting portion, of the first connecting portion, and the inner wall of the heat-shrinkable tube is correspondingly attached to and contacted with the first connecting portion and the insulating plate.

5. The low inductance dual circuit quick connect disconnect of claim 4, characterized in that: the mounting grooves comprise a first mounting groove and a second mounting groove which are parallel and mutually communicated, copper shells parallel to the first mounting groove are respectively arranged on two opposite sides of the circumferential inner wall of the first mounting groove, second mounting grooves are respectively arranged on two opposite sides of the circumferential inner wall of the first mounting groove, which are perpendicular to the copper shells, the two second mounting grooves are symmetrically arranged, and the width of each second mounting groove is smaller than that of the first mounting groove; when the lower end of the male end extends into the mounting grooves, two sides of the insulating plate in the length direction correspondingly extend into the two second mounting grooves respectively.

6. The low inductance dual circuit quick connect disconnect of claim 5, characterized in that: the inner wall of the circumferential direction of the first mounting groove is perpendicular to two opposite sides of the copper shell, two convex strips which extend in a protruding mode towards the direction far away from the side of the copper shell are arranged on the two opposite sides of the copper shell respectively, the convex strips vertically extend in the direction parallel to the second mounting groove, and the second mounting grooves are located between the two convex strips on the same side of the second mounting groove respectively.

7. The low inductance dual circuit quick connect disconnect coupling of claim 6, characterized in that: the copper shell comprises a first mounting part and a second mounting part, and the second mounting part is perpendicular to the first mounting part and is connected to one end of the first mounting part, so that the copper shell is L-shaped; the relative both sides of first mounting groove circumference inner wall are provided with a first installation department respectively, the second installation department stretches out the lower extreme of mounting groove is outwards buckled and is extended.

8. The low inductance dual circuit quick connect disconnect of claim 7, characterized in that: the two opposite sides of the plastic shell main body are respectively provided with a first fixing hole communicated with the first mounting groove, and the first mounting part is provided with a second fixing hole corresponding to the first fixing hole; the fastener passes first fixed orifices and second fixed orifices, the both sides of first installation department length direction correspond respectively and stretch into between sand grip and the first mounting groove circumference inner wall, the order first installation department is fixed in first mounting groove.

9. The low inductance dual circuit quick connect disconnect of claim 7, characterized in that: the first installation department is kept away from one side of first mounting groove circumference inner wall is provided with to being close to the sunken draw-in groove of first mounting groove circumference inner wall, compound flexible touches the finger warp the draw-in groove is fixed on the first installation department.

10. The low inductance dual circuit quick connect disconnect of claim 7, characterized in that: the plastic shell main body is close to the opposite sides of the circumference of one end of the second installation part are respectively provided with an avoidance groove which is sunken in the direction away from the second installation part, the inner wall of the avoidance groove corresponds to the joint of the first installation part and the second installation part and is in contact with the joint.