CN109103672B

CN109103672B - High-voltage connector

Info

Publication number: CN109103672B
Application number: CN201810901765.0A
Authority: CN
Inventors: 张鑫龙; 孙计兵
Original assignee: Hangzhou Zhongmeng Photoelectric Technology Co ltd
Current assignee: Hangzhou Zhongmeng Photoelectric Technology Co ltd
Priority date: 2018-08-09
Filing date: 2018-08-09
Publication date: 2020-06-12
Anticipated expiration: 2038-08-09
Also published as: CN109103672A

Abstract

The invention discloses a high-voltage connector, which comprises a plug component, a socket component and a socket lock catch, the plug assembly comprises a plug shell, a plug shielding shell and a plug inner core, the bottom of the plug shell is provided with a mounting seat, two primary lock catches and one secondary lock catch are arranged on the upper end face of the plug shell, a plurality of error-proof keys are arranged on the lower end face of the plug shell, the socket assembly comprises a socket shell, a socket shielding shell, a socket inner core, a female terminal, an interlocking male terminal, a socket cover, a threading cover, an inner shielding ring, an outer shielding ring, a wire sealing body and a sealing ring, the invention can reduce the damage generated when the plug assembly and the socket assembly are installed, reduce the deformation rate of products, and avoid the condition of wrong installation, and the product is more stable after being installed, misoperation and plugging are avoided, electric arc is generated during plugging, and the safety of the product is enhanced.

Description

High-voltage connector

Technical Field

The invention relates to the technical field of high-voltage connectors, in particular to a high-voltage connector.

Background

The conventional connector includes a male terminal and a female terminal that are plugged into each other, that is, the two cables are electrically connected by plugging and unplugging the plug and the socket. In view of the reliability of the connection between the plug and the socket to prevent the plug and the socket from being separated due to vibration and the like during use, it is known to provide a snap/engagement portion (i.e., a single snap/engagement portion) on each of the plug and the socket to achieve locking against release. This conventional locking system can substantially meet the functional requirements in the case of a low-voltage connection, for example in the case of a low-voltage circuit on a vehicle propelled by an internal combustion engine.

However, there are problems associated with high voltage connections, including, for example, the need for high voltage circuits on electric or hybrid vehicles to provide the power needed to operate devices such as main motors, which are powered by high voltage (typically 300V or higher), plugging and unplugging the plug and receptacle assemblies at high voltage can cause arcing between the male and female terminals, easily carbonize the male or female terminals, cause poor contact, or burn out other parts, thereby requiring high voltage connectors for these high voltage circuits.

Under electric vehicle or hybrid vehicle's vibration operational environment, need a lock more reliable and stable high voltage connector, when connector maloperation, under the cable is dragged by the mistake and surpasss the locking force of high voltage plug and high voltage socket etc. the condition, high voltage plug and high voltage socket also probably are broken off under the on-state, very easily take place to electrocute, the condition such as electric leakage, very dangerous, shielding shell is in the shake in addition, easy contact is bad to let interfering signal pass away.

Disclosure of Invention

The present invention is directed to a high voltage connector, which solves the above-mentioned drawbacks of the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a high-voltage connector comprises a plug assembly, a socket assembly and a socket lock catch, wherein the plug assembly comprises a plug shell, a plug shielding shell and a plug inner core, the bottom of the plug shell is provided with a mounting seat, the upper end face of the plug shell is provided with two primary lock catches and one secondary lock catch, the lower end face of the plug shell is provided with a plurality of error-proof keys, the socket assembly comprises a socket shell, a socket shielding shell, a socket inner core, a female terminal, an interlocking male terminal, a socket cover, a threading cover, an inner shielding ring, an outer shielding ring, a wire sealing body and a sealing ring, the two male terminals and the interlocking female terminal are arranged in the plug inner core, the interlocking female terminal is positioned between the two male terminals, the inner wall of the plug shell is provided with an annular trapezoid groove, the bottom end of the plug shell is provided with an inward inner core jack and two material drawing grooves, and a plurality of reinforcing ribs are arranged between the jack, the upper end of the hole of the inner core jack is provided with a mistake-proofing groove, the lower end of the inner core jack is provided with two mistake-proofing grooves, the inner walls of two sides of the inner core jack are provided with symmetrical positioning grooves, the material drawing groove is positioned at the outer side of the positioning groove, the lower end of the plug shielding shell is provided with a plurality of shielding contact sheets, the two sides of two side walls of the plug shielding shell are symmetrically provided with clearance grooves, the upper end surface of the plug shielding shell is provided with a clearance groove, the lower end surface of the plug shielding shell is provided with two clearance grooves, the plug shielding shell is wrapped outside the plug inner core, the two sides of the plug inner core are symmetrically provided with triangular fixture blocks, the triangular fixture blocks penetrate through the clearance grooves and are mutually clamped with the positioning grooves, the upper end surface of the plug inner core is provided with a mistake-proofing lug, the lower end surface of the plug shielding shell is provided, the socket shielding shell is clamped with the outer wall of the socket inner core through a first barb, a buckling groove is formed in the socket shell, the socket inner core of which the outer wall is clamped with the socket shielding shell is buckled with the inner side of the buckling groove through the first barb, elastic pieces are symmetrically arranged on the side surfaces of the female terminals, the two female terminals are spliced and clamped in the socket inner core through the elastic pieces, the interlocking male terminal is spliced in the middle of the socket inner core, the sealing ring is sleeved on the outer side of the socket shielding shell, a second barb is formed in the inner side wall of the socket cover, and the socket cover is buckled with the buckling groove through the; the inner shielding ring is clamped and embedded in the outer shielding ring, then the inner shielding ring and the outer shielding ring are inserted into the socket shell from the lower end of the socket shell and clamped in the socket shell together, the wire sealing body is connected with the lower end of the socket shell, then the threading cover is clamped and connected with the outer wall of the lower end of the socket shell, and the wire sealing body is tightly pressed, the socket shell is provided with a lock shell and a plurality of error-proof chutes, the lock shell is provided with a pressing plate, the lock shell is internally provided with an inserting groove plate, the inserting groove plate is provided with an elongated groove, a limiting cross rod is arranged above the middle of the elongated groove, the lower end of the socket lock is provided with an inserting plate, the lower end of the inserting plate is provided with a sliding block, the sliding block can slide in the elongated groove, the upper end of the inserting plate is provided with a lock hook, the socket lock hook is in sliding connection with the inserting groove plate, when the plug assembly, when the plug assembly and the socket assembly are mutually inserted, when the primary lock catch crosses the limiting hook arranged on the lower end face of the pressing plate, the socket lock catch is pushed inwards, so that the sliding block at the lower end of the socket lock catch moves to be blocked by the limiting cross rod under the guiding action of the long groove, in the process, the lock hook at the front end of the socket lock catch crosses the secondary lock catch to reach one side of the secondary lock catch, after the plug assembly and the socket assembly are inserted, the male terminal is inserted into the female terminal, the interlocking male terminal is inserted into the interlocking female terminal, the sealing ring is positioned in the annular trapezoid groove, and the plug shielding shell is electrically connected with the socket shielding shell.

Preferably, be equipped with the annular groove in the bottom surface of mount pad, be equipped with a plurality of triangle lugs on the outside inner wall of annular groove, be equipped with sealed the pad in the annular groove, the triangle lug supports sealed the pad.

Preferably, countersunk holes are formed in four corners of the mounting seat, and press-connection rings are arranged in the countersunk holes.

Preferably, a plurality of mistake proofing keys and mistake proofing spout match the joint each other, be equipped with the interval between a plurality of mistake proofing keys and the mistake proofing spout, and the distance can change as required, according to the difference of interval, can decompose into the plug subassembly and the socket subassembly of a plurality of different key position combinations with the product, and the plug subassembly and the socket subassembly of different key position combinations can not insert each other.

The beneficial effect of adopting above technical scheme is:

1. in the high-voltage connector of the invention, in the process of assembling the plug assembly, the material drawing grooves are positioned at two sides of the positioning groove, when the triangular clamping blocks at two sides of the plug inner core are inserted into the inner core jack along with the plug inner core, two sides of the inner core jack are compressed before entering the positioning groove, the space of the material drawing grooves can be easily deformed, thereby better force leakage is better prevented, the phenomenon that the plug shell is damaged due to overlarge force when the plug inner core is installed is prevented, then, when the triangular clamping blocks are clamped into the positioning groove, a mistake-proof lug at the upper end surface and two mistake-proof lugs at the lower end surface of the plug inner core can respectively correspond to a mistake-proof groove at the upper end of the inner core jack and two mistake-proof grooves at the lower end, thus, the effect of limiting can not be realized, the installation direction of the plug inner core can also be prevented from being reversed, the possibility of misoperation is avoided, the plug inner core is more stable in the inner core jack and can not generate displacement, wherein the shielding contact pieces at the lower end of the plug shielding shell are more dispersed, the shielding contact pieces can be ensured to be in good contact with the mounting seat, the shielding signals cannot be influenced due to poor contact, the depth of the trapezoidal groove on the inner wall of the plug shell is deeper, so that a sealing ring in a power socket matched with the plug shell can be thicker and firmer, and conditions are provided for enhancing the sealing effect, the waist line of the plug shell and the jack of the socket shell is in arc transition, so that the poor sealing performance of the sealing ring caused by uneven stretching is reduced, the sealing effect of the device is better, the distances between a mistake-proof key and a mistake-proof chute are different in a plurality of plug-in components with different specifications, when a plurality of plug-in components with different specifications are used together in the same using scene, the plug components and the socket components with different specifications are combined due to different, the condition of preventing mutual inserting and dislocation is achieved, and each pair of plug assembly and each pair of socket assembly can be matched and butted.

2. This high voltage connector supply socket articulates through crimping head and female terminal contact, has certain tensile ability, then the sealing washer cover is established in the socket shielding shell outside, the sealing wire body is connected with socket casing lower extreme and compresses tightly outer shielding ring, then threading lid and socket casing lower extreme outer wall joint, and will seal the wire body and compress tightly, has improved the shock attenuation effect of socket subassembly inner structure on one hand, and two then make the electric wire to be pulled the power too fiercely, have certain tensile effect, guarantee the stability of electricity connection.

3. When the plug assembly and the socket assembly are mutually inserted, the socket lock catch is firstly inserted into the long groove on the slot plate and can be slidably connected in the long groove, then the plug assembly is inserted into the socket assembly, when the primary lock catch on the plug shell body crosses the limiting hook at the lower end of the pressing plate, the male terminal is inserted into the female terminal and contacts with the female terminal, but no power is supplied to each other, then the plug assembly is further inserted inwards, when the secondary lock catch moves to be contacted with the end face of the wedge-shaped block, the interlocking male terminal is inserted into the interlocking female terminal, the interlocking male terminal is communicated with the interlocking female terminal and is equivalent to a power switch of the male terminal and the female terminal, then the socket lock catch is pushed inwards, so that the sliding block at the lower end of the socket lock catch moves to be blocked by the limiting cross rod under the guiding effect of the long groove, and in the process, the lock hook at the front end of the socket lock catch sequentially crosses the wedge-shaped block and the secondary lock, the locking of plug subassembly and socket subassembly has been realized, locks plug subassembly and socket subassembly through the socket hasp, has guaranteed the stability and the security of connecting, makes public terminal and female terminal insert earlier simultaneously and closes, and circular telegram has avoided electric arc to produce again.

When the plug assembly and the socket assembly are pulled out of each other, the opposite of the upper surface is realized, the end part of the socket lock catch is pressed firstly, the lock hook at the front end of the socket lock catch tilts, then the socket lock catch is pulled out by virtue of the pressing force, so that the lock hook sequentially crosses the secondary lock catch and the wedge block to reach one side of the wedge block, the socket lock catch releases the locking of the secondary lock catch, then the plug assembly is pulled out, when the primary lock catch on the plug shell moves to be contacted with the limit hook at the lower end of the pressing plate, the interlocking male terminal is pulled out from the interlocking female terminal at the moment, the power-on switch of the male terminal and the female terminal is disconnected, then one side of the pressing plate far away from the limit hook is pressed, so that the plug assembly can be pulled out, the power failure is realized firstly, then the male terminal and the female terminal are pulled out, the electric arc is avoided, the plug assembly and, ensuring the power-off plugging and unplugging and avoiding the generation of electric arcs.

Drawings

FIG. 1 is a schematic view of the overall assembly of the high voltage connector power plug in the forward direction;

FIG. 2 is a schematic view of the reverse overall assembly of the high voltage connector power plug;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is an exploded view of all parts of the high voltage connector power plug;

fig. 5 is a schematic structural view of a plug shield case;

FIG. 6 is a schematic view of the high voltage connector power socket assembled as a whole;

FIG. 7 is a side view of the high voltage connector power receptacle;

FIG. 8 is a cross-sectional view A-A of FIG. 7;

FIG. 9 is a cross-sectional view B-B of FIG. 7;

FIG. 10 is an exploded view of all parts of the high voltage connector power socket;

FIG. 11 is a three-dimensional cross-sectional view of a socket plate position;

FIG. 12 is an integrally assembled front view of the high-voltage connector;

FIG. 13 is a top plan view of the high voltage connector in its entirety assembled;

FIG. 14 is a sectional view A-A of FIG. 12;

FIG. 15 is a cross-sectional view B-B of FIG. 13;

FIG. 16 is a schematic view of a female terminal structure;

FIG. 17 is a schematic view of a male terminal structure;

FIG. 18 is a schematic view of an interlocking female terminal structure;

fig. 19 is a schematic view of an interlocking male terminal structure.

Wherein, 1, a plug component; 1-1, a plug housing; 1-2, a plug shielding shell; 1-3, an inner core of the plug; 1-4, interlocking female terminals; 1-5, a male terminal; 1-6, sealing gasket; 1-7, a crimping ring; 1-8, mounting seats; 1-10, trapezoidal groove; 1-11, inner core jacks; 1-12, cutting a material groove; 1-13, reinforcing ribs; 1-14, error-proofing grooves; 1-15, positioning groove; 1-16, error-proof key; 1-20, shielding contact piece; 1-21, avoiding grooves; 1-30 parts of a triangular fixture block; 1-31, error proofing bumps; 1-80, annular groove; 1-81, triangular bumps; 1-82, counter sink; 2. a receptacle assembly; 2-1, a socket housing; 2-10, buckling grooves; 2-2, a socket shielding shell; 2-3, an inner core of the socket; 2-30, a barb one; 2-4, a female terminal; 2-40, spring plate; 2-5, interlocking male terminals; 2-6, a socket cover; 2-60 and a second barb; 2-7, threading cover; 2-8, an inner shielding ring; 2-9, an outer shielding ring; 2-101, a wire sealing body; 2-11, sealing rings; 2-16, a mistake proofing chute; 3. locking the socket; 3-1, primary locking; 3-2, secondary locking; 3-3, a lock catch shell; 3-4, pressing the board; 3-40 parts of a limiting hook; 3-5, a slot plate; 3-6 long grooves; 3-7, a limiting cross bar; 30. inserting plates; 31. a slider; 32. a wedge block; 33. a latch hook.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIGS. 1-19A preferred embodiment of the present invention is described in detail below with reference to the accompanying drawings: a high-voltage connector comprises a plug assembly 1, a socket assembly 2 and a socket lock catch 3, wherein the plug assembly 1 comprises a plug shell 1-1, a plug shielding shell 1-2 and a plug inner core 1-3, an installation seat 1-8 is arranged at the bottom of the plug shell 1-1, two primary lock catches 3-1 and one secondary lock catch 3-2 are arranged on the upper end face of the plug shell 1-1, a plurality of error-proof keys 1-16 are arranged on the lower end face of the plug shell 1-1, and the socket assembly 2 comprises a socket shell 2-1, a socket shielding shell 2-2, a socket inner core 2-3, a female terminal 2-4, an interlocking male terminal 2-5, a socket cover 2-6, a threading cover 2-7, an inner shielding ring 2-8, an outer shielding ring 2-9, a male connector and a female connector, The plug comprises a wire sealing body 2-101 and a sealing ring 2-11, wherein two male terminals 1-5 and an interlocking female terminal 1-4 are arranged in a plug inner core 1-3, the interlocking female terminal 1-4 is positioned between the two male terminals 1-5, an annular trapezoidal groove 1-10 is arranged on the inner wall of a plug shell 1-1, an inward inner core jack 1-11 and two material drawing grooves 1-12 are arranged at the bottom end of the plug shell 1-1, a plurality of reinforcing ribs 1-13 are arranged between the jack of the plug shell 1-1 and the inner core jack 1-11, a mistake-proof groove 1-14 is arranged at the upper end of the inlet hole of the inner core jack 1-11, two mistake-proof grooves 1-14 are arranged at the lower end of the inner core jack 1-11, and symmetrical positioning grooves 1-15 are arranged on the inner walls at two sides of the inner core jack 1-, the material taking groove 1-12 is located on the outer side of the positioning groove 1-15, the lower end of the plug shielding shell 1-2 is provided with a plurality of shielding contact pieces 1-20, two sides of two side walls of the plug shielding shell 1-2 are symmetrically provided with clearance grooves 1-21, the upper end face of the plug shielding shell 1-2 is provided with a clearance groove 1-21, the lower end face of the plug shielding shell is provided with two clearance grooves 1-21, the plug shielding shell 1-2 is wrapped outside the plug inner core 1-3, two sides of the plug inner core 1-3 are symmetrically provided with triangular fixture blocks 1-30, the triangular fixture blocks 1-30 penetrate through the clearance grooves 1-21 and the positioning groove 1-15 to be clamped with each other, the upper end face of the plug inner core 1-3 is provided with a mistake-proof lug 1-31, the lower end face of the plug inner core is provided with two mistake-proof lugs 1-31, the anti-mistake projection 1-31 is matched with the anti-mistake groove 1-14, a barb I2-30 is arranged on the socket inner core 2-3, the socket shielding shell 2-2 is clamped with the outer wall of the socket inner core 2-3 through the barb I2-30, a buckle groove 2-10 is arranged in the socket shell 2-1, the socket inner core 2-3 of which the outer wall is clamped with the socket shielding shell 2-2 is buckled with the inner side of the buckle groove 2-10 through the barb I2-30, the side surfaces of the female terminals 2-4 are symmetrically provided with elastic sheets 2-40, the two female terminals 2-4 are spliced and clamped in the socket inner core 2-3 through the elastic sheets 2-40, the interlocking male terminal 2-5 is spliced in the middle of the socket inner core 2-3, and the sealing ring 2-11 is sleeved on the outer side of the socket shielding shell 2-2, a second barb 2-60 is arranged on the inner side wall of the socket cover 2-6, and the socket cover 2-6 is buckled with the buckling groove 2-10 through the second barb 2-60; the inner shielding ring 2-8 is embedded in the outer shielding ring 2-9, then is inserted from the lower end of the socket shell 2-1 and is clamped in the socket shell 2-1, the wire sealing body 2-101 is connected with the lower end of the socket shell 2-1, then the threading cover 2-7 is clamped with the outer wall of the lower end of the socket shell 2-1 and tightly presses the wire sealing body 2-101, the socket shell 2-1 is provided with a lock catch shell 3-3 and a plurality of error-proof chutes 2-16, the lock catch shell 3-3 is provided with a pressing plate 3-4, the lock catch shell 3-3 is internally provided with a slot plate 3-5, the slot plate 3-5 is provided with an elongated slot 3-6, a limiting cross rod 3-7 is arranged above the middle of the elongated slot 3-6, the lower end of the socket lock catch 3 is provided with an inserting plate 30, the lower end of the insert plate 30 is provided with a slide block 31, the slide block 31 can slide in the long groove 3-6, the upper end of the plug board 30 is provided with a wedge block 32, the front end of the plug board 30 is provided with a lock hook 33, the socket lock catch 3 is connected with the slot board 3-5 in a sliding way, when the plug component 1 is inserted into the socket component 2, the mistake-proofing keys 1-16 are firstly fit into the mistake-proofing chutes 2-16, the primary lock catch 3-1 and the secondary lock catch 3-2 are arranged in the lock catch shell 3-3, after the plug component 1 and the socket component 2 are plugged, the male terminals 1-5 are inserted into the female terminals 2-4, the interlocking male terminals 2-5 are inserted into the interlocking female terminals 1-4, the sealing ring 2-11 is positioned in the annular trapezoidal groove 1-10, and the plug shielding shell 1-2 is electrically connected with the socket shielding shell 2-2.

In the embodiment, the bottom surface of the mounting seat 1-8 is internally provided with an annular groove 1-80, the inner wall of the outer side of the annular groove 1-80 is provided with a plurality of triangular lugs 1-81, the annular groove 1-80 is internally provided with a sealing gasket 1-6, and the triangular lugs 1-81 are propped against the sealing gasket 1-6.

In this embodiment, countersunk holes 1-82 are formed at four corners of the mounting seat 1-8, and press rings 1-7 are arranged in the countersunk holes 1-82.

In this embodiment, the lower end surface of the pressing plate 3-4 is provided with a limiting hook 3-40.

The first embodiment is as follows:

the installation method of the whole device comprises the steps of firstly, installing a plug inner core 1-3 into a plug shielding shell 1-2, positioning triangular fixture blocks 1-30 on two sides of the plug inner core 1-3 into avoidance grooves 1-21 on two sides of the plug shielding shell 1-2, positioning a mistake-proofing bump 1-31 on the upper end surface of the plug inner core 1-3 into one avoidance groove 1-21 on the upper end surface of the plug shielding shell 1-2, and positioning two mistake-proofing bumps 1-31 on the lower end surface of the plug inner core 1-3 into two avoidance grooves 1-21 on the lower end surface of the plug shielding shell 1-2, so that the plug shielding shell 1-2 and the plug inner core 1-3 are precisely attached; secondly, inserting the plug shielding shell 1-2 and the plug inner core 1-3 obtained in the first step into the plug shell 1-1 together from the inner core jack 1-11, wherein the triangular fixture blocks 1-30 on two sides of the plug inner core 1-3 are clamped into the positioning grooves 1-15, and the error-proof lugs 1-31 on the upper end and the lower end of the plug inner core 1-3 are respectively clamped into the error-proof grooves 1-14 on the upper end and the lower end of the inner core jack 1-11 in hole; thirdly, stripping off an insulating skin at the end part of the external lead to expose the internal copper wire, then crimping the male terminal 1-5 on the copper wire, and installing the male terminal 1-5 and the interlocking female terminal 1-4 into the plug inner core 1-3; fourthly, installing the sealing gaskets 1-6 into the annular grooves 1-80, driving the sealing gaskets 1-7 into the counter bores 1-82, and fixing the installation seats 1-8 on the box body; fifthly, stripping off an insulating skin at the end part of the wire to expose the internal copper wire, and then crimping the crimping head on the copper wire; sixthly, crimping the inner shielding ring 2-8 on an insulating skin of the wire, and then crimping the outer shielding ring 2-9 on the outer side of the inner shielding ring 2-8 for standby; seventhly, clamping the socket shielding shell 2-2 at the outer side of the socket inner core 2-3 through a barb I2-30, and then buckling the socket inner core 2-3 of which the outer wall is clamped with the socket shielding shell 2-2 with the inner side of the buckling groove 2-10 through the barb I2-30; eighthly, inserting and clamping the two female terminals 2-4 into the inner core 2-3 of the socket through the elastic sheets 2-40, inserting and clamping the interlocking male terminal 2-5 into the middle of the inner core 2-3 of the socket, and then sleeving the sealing ring 2-11 on the outer side of the shielding shell 2-2 of the socket; step nine, fastening the socket cover 2-6 with the fastening groove 2-10 through the second barb 2-60; step ten, inserting the lead for standby in the step six into the lower end of the socket shell 2-1, then enabling the crimping connector to be in contact and hanging connection with the female terminal 2-4, and enabling the outer shielding ring 2-9 to be elastically clamped by the socket shell 2-1; step eleven, sleeving the wire sealing body 2-101 on the electric wire and plugging the wire sealing body into the socket shell 2-1, sleeving the threading cover 2-7 on the electric wire, clamping the threading cover 2-7 on the outer wall of the lower end of the socket shell 2-1, and tightly pressing the wire sealing body 2-101; twelfth, the socket lock catch 3 is in sliding connection with the slot plate 3-5, when the plug assembly 1 is inserted into the socket assembly 2, the error-proof key 1-16 is firstly matched in the error-proof sliding groove 2-16, the primary lock catch 3-1 and the secondary lock catch 3-2 are arranged in the lock catch shell 3-3, after the plug assembly 1 and the socket assembly 2 are plugged, the male terminal 1-5 is inserted into the female terminal 2-4, the interlocking male terminal 2-5 is inserted into the interlocking female terminal 1-4, the sealing ring 2-11 is located in the annular trapezoidal groove 1-10, and the plug shielding shell 1-2 is electrically connected with the socket shielding shell 2-2.

Example two:

when the plug component 1 and the socket component 2 are mutually inserted, the socket lock catch 3 is firstly inserted into the long groove 3-6 on the slot plate 3-5 and can be connected in the long groove 3-6 in a sliding way, then the plug component 1 is inserted into the socket component 2, when the primary lock catch 3-1 on the plug shell 1-1 passes through the limiting hook 3-40 at the lower end of the pressing plate 3-4, the male terminal 1-4 is inserted into the female terminal 2-4 and contacts with the female terminal, but is not electrified mutually, then the plug component 1 is further inserted inwards, when the secondary lock catch 3-2 moves to be contacted with the end face of the lock hook 33, the interlocking male terminal 2-5 is inserted into the interlocking female terminal 1-5, the interlocking male terminal 2-5 is communicated with the interlocking female terminal 1-5, the plug assembly 1 and the socket assembly 2 are locked through the socket lock catch 3, the connection stability and safety are guaranteed, meanwhile, the male terminal 1-4 and the female terminal 2-4 are firstly plugged and then powered on, and electric arcs are avoided.

Example three:

when the plug component 1 and the socket component 2 are mutually pulled out, the opposite direction is followed, the end part of the socket lock catch 3 is firstly pressed, the lock hook 33 at the front end of the socket lock catch 3 is tilted, then the socket lock catch 3 is pulled out by virtue of the pressing force, so that the lock hook 33 passes over the secondary lock catch 3-2, at the moment, the socket lock catch 3 releases the locking of the secondary lock catch 3-2, then the plug component 1 is pulled out, the primary lock catch 3-1 on the plug shell 1-1 moves to be contacted with the limit hook 3-40 at the lower end of the pressing plate 3-4, at the moment, the interlocking male terminal 2-5 is pulled out from the interlocking female terminal 1-5, which is equivalent to the disconnection of the power switch of the male terminal 1-4 and the female terminal 2-4, then the side of the pressing plate 3-4 far away from the limit hook 3-40 is pressed, so that, the power-off is firstly realized, then the male terminal 1-4 and the female terminal 2-4 are pulled out, the electric arc is avoided, the plug component 1 and the socket component 2 are pulled out and inserted and are matched with the locking and unlocking actions, the power-off pulling and inserting is ensured, and the electric arc is avoided.

Based on the above, the structure of the invention adopting the above technical scheme has the beneficial effects that:

1. according to the high-voltage connector, in the assembling process of a plug assembly 1, the material taking grooves 1-12 are located on two sides of the positioning grooves 1-15, when triangular clamping blocks 1-30 on two sides of a plug inner core 1-3 are inserted into inner core jacks 1-11 along with the plug inner core 1-3 in the process of entering the positioning grooves 1-15, two sides of the inner core jacks 1-11 can be compressed, the space of the material taking grooves 1-12 can be deformed more easily, so that the force can be better discharged, the phenomenon that the plug inner core 1-3 is excessively stressed to damage a plug shell 1-1 is prevented, and then when the triangular clamping blocks 1-30 are clamped into the positioning grooves 1-15, a mistake-proof bump 1-31 on the upper end face of the plug inner core 1-3 and two mistake-proof bumps 1-31 on the lower end face respectively correspond to a mistake-proof groove 1 on the upper end of an inner core jack 1-11 in a hole 14 and two error-proof grooves 1-14 at the lower end, thus not only having a limiting function, but also preventing the reverse installation direction of the plug inner core 1-3 and avoiding the possibility of misoperation, after the plug inner core 1-3 is installed, the plug inner core 1-3 is more stable in the inner core jack 1-11 and can not generate displacement, wherein, the shielding contact sheet 1-20 at the lower end of the plug shielding shell 1-2 is more dispersed, the good contact between the shielding contact sheet 1-20 and the installation seat 1-8 can be ensured, the shielding signal can not be influenced due to poor contact, and the depth of the trapezoidal groove 1-10 at the inner wall of the plug shell 1-1 is deeper, so that the sealing ring 2-11 in the power socket matched with the plug shell can be thicker, and a condition is provided for enhancing the sealing effect, the waist line positions of the plug shell 1-1 and the jack 2-1 of the socket shell 1-1 are arc transition grooves Therefore, the sealing performance of the sealing rings 2-11 caused by uneven stretching is reduced, the sealing effect of the device is better, the distances between the error-proof keys 1-16 and the error-proof chutes 2-16 are different in a plurality of plug-in units with different specifications, and when the plug-in units with different specifications are used together in the same using scene, the plug assembly 1 and the socket assembly 2 of each model are combined by different keys to prevent mutual plugging and dislocation, so that each pair of the plug assembly 1 and the socket assembly 2 can be matched and butted.

2. The high-voltage connector power socket is in contact and hanging connection with a female terminal 2-4 through a crimping connector and has certain tensile strength, then a sealing ring 2-11 is sleeved on the outer side of a socket shielding shell 2-2, a wire sealing body 2-101 is connected with the lower end of a socket shell 2-1 and tightly presses an outer shielding ring 2-9, then a threading cover 2-7 is clamped with the outer wall of the lower end of the socket shell 2-1 and tightly presses the wire sealing body 2-101, so that the shock absorption effect of the internal structure of the socket component 2 is improved, the electric wire is excessively violent in tensile force, a certain tensile strength is achieved, and the stability of electric connection is guaranteed.

3. When the plug component 1 and the socket component 2 are mutually inserted, the socket lock catch 3 is firstly inserted into the long groove 3-6 on the slot plate 3-5 and can be connected in the long groove 3-6 in a sliding way, then the plug component 1 is inserted into the socket component 2, when the primary lock catch 3-1 on the plug shell 1-1 crosses the limit hook 3-40 at the lower end of the pressing plate, the male terminal 1-5 is inserted into the female terminal 2-4 and contacts with the female terminal but is not electrified, then the plug component 1 is further inserted inwards, when the secondary lock catch 3-2 moves to contact with the end face of the lock hook 33, the interlocking male terminal 2-5 is inserted into the interlocking female terminal 1-4, the interlocking male terminal 2-5 is communicated with the interlocking female terminal 1-4, which is equivalent to the electrification switch of the male terminal 1-5 and the female terminal 2-4, then the socket lock catch 3 is pushed inwards, so that the sliding block 31 at the lower end of the socket lock catch 3 moves to be blocked by the limiting cross rod 3-7 under the guiding action of the long groove 3-6, in the process, the lock hook 33 at the front end of the socket lock catch 3 passes through the secondary lock catch 3-2 to reach one side of the secondary lock catch 3-2, the locking of the plug assembly 1 and the socket assembly 2 is realized, the plug assembly 1 and the socket assembly 2 are locked through the socket lock catch 3, the connection stability and safety are ensured, meanwhile, the male terminal 1-5 and the female terminal 2-4 are firstly inserted and then electrified, and the generation of electric arcs is avoided.

When the plug component 1 and the socket component 2 are mutually pulled out, the opposite direction is followed, the end part of the socket lock catch 3 is firstly pressed, the lock hook 33 at the front end of the socket lock catch 3 is tilted, then the socket lock catch 3 is pulled out by virtue of the pressing force, so that the lock hook 33 passes over the secondary lock catch 3-2, at the moment, the socket lock catch 3 releases the locking of the secondary lock catch 3-2, then the primary lock catch 3-1 on the plug shell 1-1 moves to be contacted with the limit hook 3-40 at the lower end of the pressing plate towards the plug component 1, at the moment, the interlocking male terminal 2-5 is pulled out from the interlocking female terminal 1-4, which is equivalent to the disconnection of the power switch between the male terminal 1-5 and the female terminal 2-4, then the side of the pressing plate far away from the limit hook 3-40 is pressed, so that the plug component 1 can be pulled out, the power failure is firstly realized, and then the male terminal 1-5 and the, the electric arc is avoided, the plug component 1 and the socket component 2 are plugged and are matched with locking and unlocking actions, the power-off plugging is guaranteed, and the electric arc is avoided.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A high-voltage connector comprises a plug component (1), a socket component (2) and a socket lock catch (3), and is characterized in that: the plug assembly (1) comprises a plug shell (1-1), a plug shielding shell (1-2) and a plug inner core (1-3), the waist line positions of jacks of the plug shell (1-1) and the socket shell (2-1) are in circular arc transition, the bottom of the plug shell (1-1) is provided with a mounting seat (1-8), the upper end face of the plug shell (1-1) is provided with two primary lock catches (3-1) and one secondary lock catch (3-2), the lower end face of the plug shell (1-1) is provided with a plurality of error-proof keys (1-16), and the socket assembly (2) is composed of the socket shell (2-1), the socket shielding shell (2-2), the socket inner core (2-3), a female terminal (2-4), an interlocking male terminal (2-5), The plug comprises a socket cover (2-6), a threading cover (2-7), an inner shielding ring (2-8), an outer shielding ring (2-9), a wire sealing body (2-101) and a sealing ring (2-11), wherein two male terminals (1-5) and interlocking female terminals (1-4) are arranged in a plug inner core (1-3), the interlocking female terminals (1-4) are positioned between the two male terminals (1-5), an annular trapezoidal groove (1-10) is formed in the inner wall of the plug shell (1-1), an inward inner core jack (1-11) and two material taking grooves (1-12) are formed in the bottom end of the plug shell (1-1), a plurality of reinforcing ribs (1-13) are arranged between the jack of the plug shell (1-1) and the inner core jack (1-11), the upper end of the hole of the inner core jack (1-11) is provided with a mistake-proofing groove (1-14), the lower end of the hole is provided with two mistake-proofing grooves (1-14), the inner walls of the two sides of the inner core jack (1-11) are provided with symmetrical positioning grooves (1-15), the material taking groove (1-12) is positioned at the outer side of the positioning grooves (1-15), the lower end of the plug shielding shell (1-2) is provided with a plurality of shielding contact pieces (1-20), the two sides of the two side walls of the plug shielding shell (1-2) are symmetrically provided with avoiding grooves (1-21), the upper end surface of the plug shielding shell (1-2) is provided with an avoiding groove, the lower end surface of the plug shielding shell is provided with two avoiding grooves (1-21), and the plug shielding shell (1-2) is wrapped outside the plug inner core (1-3), the plug comprises a plug inner core (1-3) and is characterized in that triangular clamping blocks (1-30) are symmetrically arranged on two sides of the plug inner core (1-3), the triangular clamping blocks (1-30) penetrate through avoidance grooves (1-21) and positioning grooves (1-15) to be clamped with each other, a mistake-proof bump (1-31) is arranged on the upper end face of the plug inner core (1-3), two mistake-proof bumps (1-31) are arranged on the lower end face of the plug inner core, the mistake-proof bumps (1-31) are matched with the mistake-proof grooves (1-14), a barb I (2-30) is arranged on the plug inner core (2-3), the plug shielding shell (2-2) is clamped with the outer wall of the plug inner core (2-3) through the barb I (2-30), a buckling groove (2-10) is arranged inside the plug inner core (2-1), and the plug inner core (2-3) with the plug shielding shell ( One (2-30) is buckled with the inner side of the buckling groove (2-10), elastic sheets (2-40) are symmetrically arranged on the side surfaces of the female terminals (2-4), the two female terminals (2-4) are spliced and clamped inside the socket inner core (2-3) through the elastic sheets (2-40), the interlocking male terminal (2-5) is spliced inside the middle of the socket inner core (2-3), the sealing ring (2-11) is sleeved outside the socket shielding shell (2-2), a barb II (2-60) is arranged on the inner side wall of the socket cover (2-6), and the socket cover (2-6) is buckled with the buckling groove (2-10) through the barb II (2-60); the inner shielding ring (2-8) is embedded in the outer shielding ring (2-9) in a clamping manner, then the inner shielding ring and the outer shielding ring are inserted into the socket shell (2-1) from the lower end of the socket shell (2-1) and clamped in the socket shell (2-1), the wire sealing body (2-101) is connected with the lower end of the socket shell (2-1), then the threading cover (2-7) is clamped with the outer wall of the lower end of the socket shell (2-1) and tightly presses the wire sealing body (2-101), the socket shell (2-1) is provided with a lock shell (3-3) and a plurality of error-proof chutes (2-16), the lock shell (3-3) is provided with a pressing plate (3-4), the lock shell (3-3) is internally provided with slot plates (3-5), and the slot plates (3-5) are provided with elongated slots (3-6), a limiting cross rod (3-7) is arranged above the middle of each long groove (3-6), an inserting plate (30) is arranged at the lower end of each socket lock catch (3), a sliding block (31) is arranged at the lower end of each inserting plate (30), the sliding block (31) can slide in each long groove (3-6), a wedge-shaped block (32) is arranged at the upper end of each inserting plate (30), a locking hook (33) is arranged at the front end of each inserting plate (30), each socket lock catch (3) is in sliding connection with each inserting groove plate (3-5), when the plug assembly (1) is inserted into the socket assembly (2), the error-proof keys (1-16) are firstly matched in the error-proof sliding grooves (2-16), the primary lock catch (3-1) and the secondary lock catch (3-2) are arranged in the lock catch shells (3-3), when the plug assembly (1) and the socket assembly (2) are mutually inserted, when the primary lock catch (3-1) crosses the limiting hook (3-40) arranged on the lower end face of the pressing plate (3-4), the socket lock catch (3) is pushed inwards, so that a sliding block (31) at the lower end of the socket lock catch (3) moves to be blocked by the limiting cross rod (3-7) under the guiding action of the long groove (3-6), in the process, a lock hook (33) at the front end of the socket lock catch (3) crosses the secondary lock catch (3-2) to reach one side of the secondary lock catch (3-2), after the plug assembly (1) and the socket assembly (2) are plugged, the male terminal (1-5) is inserted into the female terminal (2-4), the interlocking male terminal (2-5) is inserted into the interlocking female terminal (1-4), and the sealing ring (2-11) is positioned in the annular trapezoidal groove (1-10), the plug shielding shell (1-2) is electrically connected with the socket shielding shell (2-2).

2. A high-voltage connector as claimed in claim 1, wherein: the mounting structure is characterized in that an annular groove (1-80) is formed in the bottom surface of the mounting seat (1-8), a plurality of triangular lugs (1-81) are arranged on the inner wall of the outer side of the annular groove (1-80), a sealing gasket (1-6) is arranged in the annular groove (1-80), and the triangular lugs (1-81) abut against the sealing gasket (1-6).

3. A high-voltage connector as claimed in claim 1, wherein: countersunk holes (1-82) are formed in the four corners of the mounting seat (1-8), and press-connection rings (1-7) are arranged in the countersunk holes (1-82).

4. A high-voltage connector as claimed in claim 1, wherein: a plurality of mistake proofing keys (1-16) and mistake proofing spout (2-16) match the joint each other, be equipped with the interval between a plurality of mistake proofing keys (1-16) and the mistake proofing spout (2-16), and the distance can change as required, according to the difference of interval, can decompose into the product a plurality of sets of plug subassembly (1) and socket component (2) of different key position combinations, and plug subassembly (1) and socket component (2) of different key position combinations can not insert each other.