CN108199164B - High voltage connector with safety lock - Google Patents
High voltage connector with safety lock Download PDFInfo
- Publication number
- CN108199164B CN108199164B CN201810154671.1A CN201810154671A CN108199164B CN 108199164 B CN108199164 B CN 108199164B CN 201810154671 A CN201810154671 A CN 201810154671A CN 108199164 B CN108199164 B CN 108199164B
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- shell
- buckle
- lock
- assembly
- locking
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- 238000007789 sealing Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 241000463219 Epitheca Species 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6275—Latching arms not integral with the housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
- H01R13/6335—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only comprising a handle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a high-voltage connector with a safety lock, which is used for electric automobiles and hybrid automobiles and comprises a shell assembly, an upper shell assembly, a bottom cover assembly and a wire, wherein the connection relation is as follows: the shell assembly is connected with the upper shell assembly in a plug-in connection manner, the shell assembly is connected with the bottom cover assembly, and the lead is inserted into and connected with the shell assembly; the shell assembly comprises a shell, a pull buckle, a lock catch and a button, wherein the shell is respectively connected with the pull buckle, the lock catch and the button; the shell comprises a protruding part, wherein the protruding part comprises two edge strips, a hollowed-out part and a cover part; the lock catch comprises a lock body part, two stop strips, a clamping part and a lock pushing part, wherein one end of each stop strip is connected with the lock stop; after assembly, the lock stop is positioned in the through hole groove and is connected with the upper protruding block. The invention is a simple and reliable secondary unlocking structure.
Description
Technical Field
The present invention relates to an automobile device, and more particularly, to a high voltage connector with a safety lock for use in a circuit connection system of an electric automobile and a hybrid automobile.
Background
In the current stage of social economy development, people have stronger and stronger consciousness on environmental protection and stronger demands on low-carbon economy and low-carbon life, and meanwhile, the oil price is continuously increased, so that aiming at the automobile industry, people are urgently seeking a new engine technology to replace the traditional internal combustion engine technology. Under the background, energy-saving and environment-friendly electric vehicles and hybrid electric vehicles are more and more paid attention to and are also necessarily trended by popularization, and the use of the electric vehicles and the hybrid electric vehicles greatly promotes the development of matched equipment of a circuit connection system.
The high-voltage connector is applied to a circuit connection system of a new energy automobile, and is used for various devices and wiring harnesses, such as a battery pack, a direct current/direct current converter, an onboard charger, an electric connector and high-voltage power distribution, and circuit connection conduction. The connectors in the market are mainly a metal shell connector and a plastic shell connector, wherein the metal shell connector is shielded by shell metal electromagnetic shielding; the connector of the plastic shell is internally embedded with copper sheets for shielding electromagnetism. The metal shell high-voltage connector has high cost and heavy weight, and mainly adopts a plastic shell. The existing high-voltage connector has the following defects:
firstly, a secondary unlocking structure is not provided, or the secondary unlocking structure is complex;
(II) the tail wire harness has no fastening structure or has a complex fastening structure;
(III) too few contact points are arranged between the shielding cases;
(IV) the terminal fixing frame is pulled to easily cause deformation of the shielding case.
In summary, existing high voltage connectors have a place to lift.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a high-voltage connector with a safety lock, which has a simple structure so as to solve the prior technical problems.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the utility model provides a high voltage connector that has safety lock for electric automobile and hybrid vehicle, including shell assemblage, epitheca assemblage, bottom assemblage and wire, the relation of connection is: the shell assembly is connected with the upper shell assembly in a plug-in connection manner, the shell assembly is connected with the bottom cover assembly, and the lead is inserted into and connected with the shell assembly; the shell assembly comprises a shell, a pull buckle, a lock catch and a button, wherein the shell is respectively connected with the pull buckle, the lock catch and the button; the shell comprises a protruding part, wherein the protruding part comprises two side strips, a hollowed-out part and a cover part, a through hole groove is formed in the corresponding position of the two side strips, and an upper protruding block is arranged in the middle of the through hole groove; the lock catch comprises a lock body part, two stop strips, a clamping part and a locking pushing part, wherein the lock body part is a one-piece body, one end of each stop strip is connected with one side of the lock body part, the other end of each stop strip is connected with a locking stop, the locking pushing part is connected with the other side of the lock body part, and the clamping part is connected with the lock body part; after assembly, the lock pushing part is located at the hollowed-out part, the clamping part is connected with the button, the lock stop is located at the through hole groove, and the lock stop is connected with the upper protruding block.
According to the high-voltage connector with the safety lock of the preferred embodiment of the invention, the button comprises a pressing part and a connecting inclined plane, one end of the connecting inclined plane is connected with the shell, the other end of the connecting inclined plane is connected with the pressing part, the pressing part is positioned on the hollowed-out part, and the connecting inclined plane is provided with two positioning grooves.
According to the high-voltage connector with the safety lock of the preferred embodiment of the invention, the pull buckle comprises a buckle body part, a buckle groove part, a pushing part, two limiting protruding shafts, a pull pushing part and a buckle position; the buckle body is a piece body, the buckle groove is a piece body with a through hole in the middle, the buckle groove is connected to one side of the buckle body, the pushing part is located on the lower surface of the buckle groove, the pulling part is located on the upper surface of the buckle body, the buckling part is located on the lower surface of the buckle body, the buckling displacement is movably connected with the two positioning grooves, the two limiting protruding shafts are located on two sides of the pulling buckle respectively, the two side strips are provided with shell guide grooves corresponding to the two limiting protruding shafts, and the limiting protruding shafts are connected with the shell guide grooves.
According to the high-voltage connector with the safety lock in the preferred embodiment of the invention, the upper shell assembly comprises an upper shell, the upper shell is inserted and connected with the outer shell, and an upper clamping block is arranged at the position of the upper shell corresponding to the buckling groove part.
According to the high-voltage connector with the safety lock in the preferred embodiment of the invention, the bottom cover assembly comprises a bracket, a sealing gasket, two locking blocks and a bottom cover; the bracket, the sealing gasket, the two locking blocks and the bottom cover are sequentially connected; the locking block comprises a connecting surface and a locking cambered surface, and the inner surface of the locking cambered surface comprises a plurality of locking convex ribs.
According to the high-voltage connector with the safety lock, the support is a hollow cylinder, one side of the support, which faces the sealing gasket, comprises at least two connecting columns, sealing through holes are formed in positions, corresponding to the connecting columns, of the sealing gasket, and the connecting columns are in through connection with the sealing through holes.
According to the high-voltage connector with the safety lock, the connecting surface of the locking block is provided with the tight block through hole at the position corresponding to the connecting column, and the connecting column is in through connection with the tight block through hole.
According to the high-voltage connector with the safety lock of the preferred embodiment of the invention, the bottom cover is a step-shaped hollow body, two opposite connecting buckle holes are formed on the surface of the bottom cover facing to one side of the shell assembly, and connecting convex buckles are formed at the positions of the shell assembly corresponding to the connecting buckle holes.
According to the high-voltage connector with the safety lock, the shell assembly further comprises a terminal fixing frame and a shielding cover, and the terminal fixing frame is inserted into and connected with the shell; the shielding cover is a two-end annular hollow body and a metal body with an arc-shaped transition middle, and the two annular hollow bodies of the shielding cover are respectively connected with the terminal fixing frame and the lead in a coating mode.
According to the high-voltage connector with the safety lock, the shielding cover comprises an island shape at one end of the terminal fixing frame, and the width of the island shape is larger than the thickness of the terminal fixing frame at the joint; the shielding cover is tightly connected with the crimping ring of the wire at one end of the wire and is extruded by the inner edge of the bottom cover assembly.
The design idea of the application is as follows: the high-voltage connector with the plastic shell is improved, and safe and reliable power distribution and conduction become the core and key of the whole automobile safety of a new energy automobile under the high-voltage and high-current environment, so that the main purpose of the high-voltage connector is to simplify the structure and increase the reliability.
Compared with the prior art, the invention has the following advantages and positive effects due to the adoption of the technology:
the first, this application is simple and reliable secondary unlocking structure;
secondly, the sealing gasket and the bracket form an assembly, and the lead is simple to fix and convenient to install;
thirdly, the shielding contact is added, so that the electromagnetic shielding effect is improved;
fourth, the bottom cover is simple and easy to install; the locking block is added, and the drawing strength is improved.
Of course, it is not necessary for all of the above advantages to be achieved simultaneously in the practice of any one of the embodiments of the present disclosure.
Drawings
FIG. 1 is a schematic view of the external appearance of the present application;
FIG. 2 is a schematic view of the housing assembly of the present application;
FIG. 3 is a schematic illustration in cross-section of FIG. 1;
FIG. 4 is a schematic view of a button and boss of the present application;
FIG. 5 is a schematic illustration of a latch of the present application;
FIG. 6 is a schematic illustration of a tab of the present application;
FIG. 7 is a schematic view of an initial state of the safety lock of the present application;
FIG. 8 is a schematic view of the upper shell of the safety lock of the present application in a bottom-inserted state;
FIG. 9 is a schematic view of the bottom state of the shackle of the safety lock of the present application;
FIG. 10 is a schematic view of the bottom cover assembly of the present application;
FIG. 11 is another angular cut-away schematic view of FIG. 1;
fig. 12 is a schematic view of the shield connection of the present application.
Detailed Description
Several preferred embodiments of the present invention will be described in detail below with reference to the attached drawings, but the present invention is not limited to these embodiments only. The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention. In the following description of preferred embodiments of the invention, specific details are set forth in order to provide a thorough understanding of the invention, and the invention will be fully understood to those skilled in the art without such details.
Referring to fig. 1, 2 and 3, the high-voltage connector of the present application is used for electric vehicles and hybrid vehicles, and comprises a housing assembly 10, an upper housing assembly 20, a bottom cover assembly 30 and a wire 40, and the connection relationship is as follows: the shell assembly 10 is in plug connection with the upper shell assembly 20, the shell assembly 10 is connected with the bottom cover assembly 30, and the lead 40 is inserted into and connected with the bottom cover assembly 30 and the shell assembly 10; the housing assembly 10 includes a housing 11, a pull buckle 12, a lock catch 13 and a button 14, wherein the housing 11 is respectively connected with the pull buckle 12, the lock catch 13 and the button 14 to form a secondary unlocking structure.
In this regard, the housing 11 includes a protruding portion 111, as shown in fig. 4, the protruding portion 111 includes two side strips 1111, a hollow portion 1112 and a cover portion 1113, a through hole groove 1114 is formed at a position corresponding to the two side strips 1111, an upper protruding portion 1115 is formed in the middle of the through hole groove 1114, and as shown in the drawing, the upper protruding portion 1115 is connected to an upper edge of the through hole groove 1114, and protrudes downward.
In addition, as shown in fig. 5, the lock catch 13 includes a lock body 131, two stop bars 132, a locking portion 133 and a locking portion 134; the lock body 131 is a sheet, one end of the stop strip 132 is connected to one side of the lock body 131, the other end of the stop strip 132 is connected to a lock stop 135, and a distance exists between the two stop strips 132; the locking portion 134 is connected to the other side of the lock body 131, the locking portion 133 is connected to the lock body 131, the locking portion 133 has an inclined plane, as shown in the figure, the locking portion 133 of the present application is two sheets protruding from the lock body 131, but the present application cannot be limited, and is designed into one or more sheets, so long as the strength and the function meet the requirements, the inclined plane of the locking portion 133 is designed to be the protection range of the present application, and mainly is convenient for connecting the button 14, and lifting the button 14; after assembly, the locking portion 134 is located at the hollow portion 1112, the locking portion 133 is connected to the button 14, the locking portion 135 is located at the through hole 1114, and the locking portion 135 is connected to the upper protrusion 1115.
As shown in fig. 4, the button 14 includes a pressing portion 141 and a connection inclined plane 142, one end of the connection inclined plane 142 is connected to the housing 11, the other end of the connection inclined plane 142 is connected to the pressing portion 141, the pressing portion 141 is located in the hollow portion 1112, the connection inclined plane 142 is connected to the housing 11 in a radial direction at an angle, so that the pressing portion 141 is in a floating shape in the hollow portion 1112, the connection inclined plane 142 is provided with two positioning grooves 143, and the two positioning grooves 143 are two through holes arranged in an axial direction.
In addition, as shown in fig. 3 and 6, the pull buckle 12 includes a buckle body 121, a buckle slot 122, a pushing portion 123, two limiting protruding shafts 124, a pull pushing portion 125 and a buckle position 126; the button body 121 is a sheet, the button slot 122 is a sheet with a through hole in the middle, the button slot 122 is connected to one side of the button body 121, the pushing part 123 is located on the lower surface of the button slot 122, the upper shell assembly 20 is inserted into the outer shell 11 when being plugged, when the front edge of the upper shell assembly 20 encounters the pushing part 123, the pushing part 123 pushes the pull button 12 outwards to push the pressing part 141 of the button 14, the pull pushing part 125 is located on the upper surface of the button body 121, the button position 126 is located on the lower surface of the button body 121, the button position 126 is a protrusion on the lower surface of the button body 121, the button position 126 is movably connected with the two positioning grooves 143, that is, before being pushed by the upper shell assembly 20, the button position 126 is located in the positioning groove 143 on the inner side, and then is pushed by the upper shell assembly 20 into the positioning groove 143 on the outer side, and the purpose of the positioning groove 143 on the outer side is to prevent the button position 126 from leaving easily. The two limiting protruding shafts 124 are respectively located at two sides of the pull buckle 12, a housing guide groove (not shown) is formed at a position of the two side strips 1111 corresponding to the two limiting protruding shafts 124, the limiting protruding shafts 124 are connected with the housing guide groove, the limiting protruding shafts 124 slide in the housing guide groove, and the function of a seesaw supporting point is also achieved.
As shown in fig. 7, the upper case assembly 20 includes an upper case 21, the upper case 21 is inserted into the housing 11, an upper locking member 211 is disposed at a position of the upper case 21 corresponding to the buckling groove 122, the upper case 21 is inserted into the housing 11, and when the front edge of the upper case 21 encounters the pushing member 123, the upper locking member 211 just enters the middle through hole of the buckling groove 122, so as to prevent the upper case 21 from being easily removed from the housing 11.
Then, in the assembling process of the safety lock, firstly, the pull buckle 12 is inserted into the cover 1113 from the hollowed-out part 1112, the two limiting protruding shafts 124 enter into the shell guide grooves of the two side strips 1111, the movement of the pull buckle 12 is limited until the pull push part 125 hits the cover 1113, the pull buckle 12 can not move inwards any more, at this time, the buckle position 126 is in the positioning groove 143 which is close to the inside, and the pull push part 125 is positioned between the cover 1113 and the pressing part 141 of the button 14; next, the latch 13 is inserted from below the pressing portion 141, the connection inclined surface 142 is located at a gap between the two stopping strips 132, when the latch 135 continues to advance, and the through hole 1114 encounters the upper projection 1115, the latch 135 is stopped by the upper projection 1115, the latch 13 cannot advance any more, as shown in fig. 7, the pull and push portion 125 collides with the cover portion 1113, and the latch 135 is stopped by the upper projection 1115.
Next, referring to the locking process of the safety lock, as shown in fig. 8, the upper shell 21 is inserted into the outer shell 11, the front edge of the upper shell 21 encounters the pushing portion 123 and continues to be inserted to the bottom, at this time, the upper locking portion 211 just enters the middle through hole of the buckling groove portion 122, so as to prevent the upper shell 21 from easily coming out of the outer shell 11, and the pulling and pushing portion 125 and the pressing portion 141 are close together, and the buckling position 126 is located in the outer locating groove 143; simultaneously, the pull buckle 12 can downwards press the lock buckle 13, so that the lock stop 135 of the lock buckle 13 is separated from the upper protruding block 1115 in the middle of the through hole groove 1114 and can be pushed forward, and when the lock buckle is pushed in place, as shown in fig. 9, the lock stop 135 comes to the other side of the upper protruding block 1115, and the lock buckle 13 is not easy to be separated; in addition, the inclined surface of the locking part 133 pushes up the button 14, and the positioning groove 143 of the connecting inclined surface 142 locks the locking position 126 of the pull buckle 12, so that the pull buckle 12 and the button 14 can be fixed and cannot move.
When the safety lock is to be opened, the lock catch 13 is pushed to the tail part to slide in place; then, pressing the button 14 pulls the upper case 3-5MM, and the upper stopper 211 is in the middle through hole of the latch groove 122, so that when the upper case 21 is pulled, the pull button 12 is pulled at the same time until the pull push portion 125 hits the lid portion 1113. Finally, the pull-push portion 125 of the pull buckle 12 is pressed, the limiting protruding shaft 124 plays a role of a seesaw supporting point, the upper locking 211 is separated from the middle through hole of the buckle groove portion 122, the upper locking 211 is not limited, and the upper shell 21 and the outer shell 11 are completely pulled apart.
Referring to fig. 10, referring to the structure of the bottom cover assembly 30, the bottom cover assembly 30 includes a bracket 31, a gasket 32, two locking blocks 33 and a bottom cover 34; the bracket 31, the sealing gasket 32, the two locking blocks 33 and the bottom cover 34 are sequentially connected; the locking block 33 comprises a connecting surface 331 and a locking cambered surface 332, the connecting surface 331 and the locking cambered surface 332 are integrally formed, the inner surface of the locking cambered surface 332 comprises a plurality of locking ribs 333, the two locking blocks 33 encircle the conducting wire 40, after the locking ribs 333 and the conducting wire 40 are locked, the axial direction of the locking ribs 333 and the conducting wire 40 form 90 degrees, and the conducting wire 40 can be locked tightly without sliding. In addition, the support 31 is a hollow cylinder, one side of the support 31 facing the sealing pad 32 includes at least two connecting columns 311, as shown in fig. 10, where the number of connecting columns 311 in the application is 4, but the number of connecting columns 311 in the application cannot be limited, so long as the application can be stably connected, and the number of connecting columns is more or less, which is a protection range of the application, the sealing pad 32 is provided with a sealing through hole 321 corresponding to the position of the connecting column 311, and the connecting columns 311 are in through connection with the sealing through hole 321.
In addition, the connection surface 331 of the locking block 33 is provided with a fastening block through hole 334 at a position corresponding to the connection post 311, the connection post 311 is connected with the fastening block through hole 334 in a penetrating manner, and as shown in fig. 10, the connection surface 331 of the locking block 33 is provided with 2 fastening block through holes 334 in accordance with the number of the connection posts 311. In addition, the bottom cover 34 is a step-shaped hollow body, two opposite connecting buckle holes 341 are formed on a surface of the bottom cover 34 facing to one side of the housing assembly 10, and referring to fig. 2 and 11, the housing assembly 10 is provided with connecting male buckles 15 at positions corresponding to the connecting buckle holes 341.
Regarding the assembly of the bottom cover assembly 30 and the housing assembly 10, the bracket 31 is added with 4 connection posts 311 with the protruding diameter of 1.5mm-3mm, and the connection posts 311 penetrate through the sealing gasket 32 and the locking block 33, and the mushroom head shape protruding from the head of the connection posts 311 can pull the locking block 33; as a simple fixation before the bottom cover 34 is installed, the bottom cover 34 is convenient to install. The inclined surfaces of the locking cambered surfaces 332 of the two locking blocks 33 are matched with the inclined surfaces on the bottom cover 34, when the bottom cover 34 is installed, the bottom cover 34 upwards extrudes the two locking blocks 33 onto the middle wire 40, the wire 40 is tightly clamped by the locking convex ribs 333 of the contact surfaces of the locking blocks 33 and the wire 40, the bottom cover 34 continues upwards, the connecting convex buckle 15 of the shell assembly 10 is inserted into the connecting buckle hole 341 of the bottom cover 34, the clamping of the bottom cover assembly 30 and the shell assembly 10 cannot be loosened, and the assembly is completed, as shown in fig. 11. The two locking blocks 33 clamp the wire 40 by using the slope squeezing effect of the bottom cover 34, so as to avoid the change of the internal structure when the wire 40 is pulled.
Next, please refer to fig. 11 and 12, a shielding connection of the present application is described; the housing assembly 10 further comprises a terminal fixing frame 16 and a shielding cover 17, wherein the terminal fixing frame 16 and the shielding cover 17 are inserted into and connected with the housing 11; the shielding cover 17 is a two-end annular hollow body and a metal body with an arc transition in the middle, and the two annular hollow bodies of the shielding cover 17 are respectively connected with the terminal fixing frame 16 and the lead 40 in a coating mode. As shown in fig. 11 and 12, the shielding cover 17 includes an island 171 at one end of the terminal holder 16, the island 171 has a width larger than the thickness of the terminal holder 16 at the connection point, and the island 171 protrudes from the terminal holder 16 to be connected with the upper housing assembly shielding cover 212; the island 171 can increase the pulling force of the terminal holder 16, and is not easy to bring out the terminal holder 16 when separating the upper case assembly 20 from the outer case assembly 10.
In addition, as shown in fig. 11, the shield 17 is tightly connected to the crimp ring 41 of the wire 40 at one end of the wire 40 by being pressed by the inner edge of the bottom cover assembly 30; this presses against the shield 17 is the bracket 31.
In summary, the shield 17 surrounds the terminal holder 16 and is secured within the housing 11 with the tail contact of the shield 17 contacting the screen crimp ring 41 of the wire 40 and the head contact contacting the upper housing assembly shield 212 to form a shield. Island 171 contacts are added to the head of the shield 17, and the inner holes of the bracket 31 press the tail contacts of the shield 17 against the wire harness crimping ring 41, so that the contacts of the shield 17 in the outer shell 11 and the upper shell assembly shield 212 are in contact conduction.
The application improves the existing plastic shell high-voltage connector, and under the high-voltage and high-current environment, safe and reliable power distribution and conduction become the core and key of the whole automobile safety of the new energy automobile, so that the most main purpose of the application is that the structure is simplified and the reliability is improved.
Compared with the prior art, the invention has the following advantages and positive effects due to the adoption of the technology:
the first, this application is simple and reliable secondary unlocking structure;
secondly, the sealing gasket and the bracket form an assembly, and the lead is simple to fix and convenient to install;
thirdly, the shielding contact is added, so that the electromagnetic shielding effect is improved;
fourth, the bottom cover is simple and easy to install; the locking block is added, and the drawing strength is improved.
Embodiments in accordance with the present invention, as described above, are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. The utility model provides a high voltage connector that has safety lock for electric automobile and hybrid vehicle, its characterized in that includes shell assemblage, epitheca assemblage, bottom assemblage and wire, and the relation of connection is: the shell assembly is connected with the upper shell assembly in a plug-in connection manner, the shell assembly is connected with the bottom cover assembly, and the lead is inserted into and connected with the shell assembly; the shell assembly comprises a shell, a pull buckle, a lock catch and a button, wherein the shell is respectively connected with the pull buckle, the lock catch and the button; wherein,
the shell comprises a protruding part, wherein the protruding part comprises two side strips, a hollowed-out part and a cover part, a through hole groove is formed in the corresponding position of the two side strips, and an upper protruding block is arranged in the middle of the through hole groove;
the lock catch comprises a lock body part, two stop strips, a clamping part and a locking pushing part, wherein the lock body part is a one-piece body, one end of each stop strip is connected with one side of the lock body part, the other end of each stop strip is connected with a locking stop, the locking pushing part is connected with the other side of the lock body part, and the clamping part is connected with the lock body part;
after assembly, the lock pushing part is positioned at the hollowed-out part, the clamping part is connected with the button, the lock stop is positioned at the through hole groove, and the lock stop is connected with the upper protruding block;
the button comprises a pressing part and a connecting inclined plane, one end of the connecting inclined plane is connected with the shell, the other end of the connecting inclined plane is connected with the pressing part, the pressing part is positioned on the hollowed-out part, and the connecting inclined plane is provided with two positioning grooves;
the pull buckle comprises a buckle body part, a buckle groove part, a pushing and stopping part, two limiting convex shafts, a pull and pushing part and a buckle position; the buckle body is a piece body, the buckle groove is a piece body with a through hole in the middle, the buckle groove is connected to one side of the buckle body, the pushing part is located on the lower surface of the buckle groove, the pulling part is located on the upper surface of the buckle body, the buckling part is located on the lower surface of the buckle body, the buckling displacement is movably connected with the two positioning grooves, the two limiting protruding shafts are located on two sides of the pulling buckle respectively, the two side strips are provided with shell guide grooves corresponding to the two limiting protruding shafts, and the limiting protruding shafts are connected with the shell guide grooves.
2. The high voltage connector with safety lock according to claim 1, wherein said upper housing assembly comprises an upper housing, said upper housing being inserted into said housing, said upper housing having an upper locking portion disposed at a position corresponding to said catching groove portion.
3. The high voltage connector with safety lock of claim 1, wherein the bottom cover assembly comprises a bracket, a gasket, two locking blocks and a bottom cover; the bracket, the sealing gasket, the two locking blocks and the bottom cover are sequentially connected; the locking block comprises a connecting surface and a locking cambered surface, and the inner surface of the locking cambered surface comprises a plurality of locking convex ribs.
4. The high-voltage connector with safety lock according to claim 3, wherein the bracket is a hollow cylinder, one side of the bracket facing the sealing pad comprises at least two connecting columns, the sealing pad is provided with sealing through holes at positions corresponding to the connecting columns, and the connecting columns are in through connection with the sealing through holes.
5. The high voltage connector with safety lock according to claim 4, wherein the connecting surface of the locking block is provided with a fastening block through hole at a position corresponding to the connecting post, and the connecting post is connected through the fastening block through hole.
6. The high-voltage connector with safety lock according to claim 5, wherein the bottom cover is a step-shaped hollow body, two opposite connecting buckle holes are formed on a surface of the bottom cover facing to one side of the housing assembly, and connecting convex buckles are formed at positions of the housing assembly corresponding to the connecting buckle holes.
7. The high voltage connector with safety lock of claim 1, wherein said housing assembly further comprises a terminal mount and a shield, said terminal mount being insertable into said housing; the shielding cover is a two-end annular hollow body and a metal body with an arc-shaped transition middle, and the two annular hollow bodies of the shielding cover are respectively connected with the terminal fixing frame and the lead in a coating mode.
8. The high voltage connector with safety lock of claim 7, wherein said shield includes an island shape at one end of said terminal holder, said island shape having a width greater than a thickness of said terminal holder at the junction; the shielding cover is tightly connected with the crimping ring of the wire at one end of the wire and is extruded by the inner edge of the bottom cover assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810154671.1A CN108199164B (en) | 2018-02-23 | 2018-02-23 | High voltage connector with safety lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810154671.1A CN108199164B (en) | 2018-02-23 | 2018-02-23 | High voltage connector with safety lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108199164A CN108199164A (en) | 2018-06-22 |
| CN108199164B true CN108199164B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810154671.1A Active CN108199164B (en) | 2018-02-23 | 2018-02-23 | High voltage connector with safety lock |
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| Country | Link |
|---|---|
| CN (1) | CN108199164B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108199164A (en) | 2018-06-22 |
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