CN108448311B - Single-core bent angle connector meeting IP68 protection grade - Google Patents
Single-core bent angle connector meeting IP68 protection grade Download PDFInfo
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- CN108448311B CN108448311B CN201810439718.9A CN201810439718A CN108448311B CN 108448311 B CN108448311 B CN 108448311B CN 201810439718 A CN201810439718 A CN 201810439718A CN 108448311 B CN108448311 B CN 108448311B
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- plastic shell
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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
- H01R13/625—Casing or ring with bayonet engagement
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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
- H01R13/46—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
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
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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
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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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
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
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- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention belongs to the technical field of high-voltage connectors of electric automobiles, in particular to a single-core bent angle connector meeting the IP68 protection level, which is suitable for electric connection of a high-voltage distribution system of an electric automobile. The plug part is connected with the socket part in a plugging way and is locked through a locking sliding sleeve; the plug part comprises a second section plug bush, a first plug plastic shell, a shielding cover, a second plug plastic shell, a plug clamp spring, a locking sliding sleeve, a first O-shaped ring, a spring ring, a second O-shaped ring, a first metal shell, an insulating sleeve, a second metal shell, a second shielding ring, a wave spring, a first shielding ring, a cable sealing ring and a cable; the socket part comprises a socket plastic shell, a plastic cap, a via pin, a socket gasket and a socket clamp spring. The invention has reasonable design and compact structure, the stability of the locking function of the locking structure under the long-term vibration working condition, the sealing structure needs to meet the higher protection level IP68, the occupied space is smaller, and the operation is convenient.
Description
Technical Field
The invention belongs to the technical field of high-voltage connectors of electric automobiles, in particular to a single-core bent angle connector meeting the IP68 protection level, which is suitable for electric connection of a high-voltage distribution system of an electric automobile.
Background
In recent years, the electric automobile industry at home and abroad is rapidly developed, the technical level is continuously improved, and part enterprises on related industry chains face good development opportunities and great challenges. Because the reliability and safety requirements of the electric automobile are continuously improved, the high-voltage connector which is an important connecting component in the high-voltage system of the electric automobile is required to be improved in reliability, and the stability of the locking function of the locking structure under the long-term vibration working condition, the sealing structure is required to meet the higher protection level IP68, the occupied space is smaller, the operation is more convenient and rapid, and the like, which are all the parts of the high-voltage connector which need to be improved.
The locking structure of the existing connector mostly adopts a buckle and wrench structure, so that the problems of risk of loosening and the like during long-term use and large occupied space of the wrench structure exist; the number of parts is large, and assembly is time-consuming; in terms of sealing structures, most of the prior art can only meet the protection grade of IP67, and has the problems of high installation precision requirement and insufficient resistance to severe environment, such as sealing failure caused by incomplete centering between a plug and a socket under the condition of small cable bending radius during installation, and probability water leakage at the plugging position or the cable inlet position of a connector when an automobile runs on a road surface with deep water accumulation in a rainy day.
Disclosure of Invention
The invention aims to provide the single-core bent angle connector meeting the protection grade of the IP68 aiming at the defects, and the locking structure has the stability under the long-term vibration working condition, and the sealing structure needs to meet the higher protection grade of the IP68, and has smaller occupied space and more convenient operation.
The single-core bent angle connector meeting the IP68 protection level is realized by adopting the following technical scheme:
the single-core bent angle connector meeting the IP68 protection level comprises a plug part and a socket part, wherein the plug part is connected with the socket part in a plugging way and is locked through a locking sliding sleeve.
The plug part comprises a second section plug bush, a first plug plastic shell, a shielding cover, a second plug plastic shell, a plug clamp spring, a locking sliding sleeve, a first O-shaped ring, a spring ring, a second O-shaped ring, a first metal shell, an insulating sleeve, a second metal shell, a second shielding ring, a wave spring, a first shielding ring, a cable sealing ring and a cable.
The first section plug bush and the second section plug bush are in threaded connection and then are used as inserts to be integrally injection-molded with the first plug plastic shell, then a shielding cover is wrapped outside (the shielding cover is divided into a left half and a right half), injection molding is performed after the first section plug bush and the second section plug bush are integrally molded, and the second section plug bush, the first plug plastic shell, the shielding cover and the second plug plastic shell jointly form a main body part of the plug, which is called a plug main body assembly.
The first section plug bush is provided with a crown spring or other elastic contact pieces.
The front part of the first plug plastic shell is provided with a spring ring mounting groove, a spring ring is arranged between the locking sliding sleeve and the first plug plastic shell (plug main body component), the spring ring is made of elastic spring stainless steel wires, and is clamped in the spring ring mounting groove arranged at the front part of the first plug plastic shell after being assembled in place, and at the moment, the spring ring is in contact with the shielding cover, and meanwhile limiting locking is carried out on the locking sliding sleeve.
The outer side of the rear part of the second plug plastic shell is provided with a locking groove and an unlocking groove for installing a plug clamp spring, and the locking groove and the unlocking groove adopt cylindrical grooves.
Two first O-shaped ring mounting grooves are formed in the peripheries of the front portion of the first plug plastic shell and the matched end of the socket, and the two first O-shaped rings are mounted on the front portion of the first plug plastic shell respectively.
The plug jump ring is installed in the corresponding cylindrical recess of second plug plastics casing rear portion outside be provided with locking groove, unblock groove, can manually make the plug jump ring card in locking groove or unblock groove on the second plug plastics casing (see figure 5).
The second O-shaped ring is arranged in a groove of the plug main body component, which is close to the press-connection hole end of the second section plug bush.
When the plug is connected and assembled with a cable, the second metal shell, the cable sealing ring, the first metal shell and the wave spring sequentially penetrate through the cable, then the cable sheath is peeled off to expose a section of shielding layer, the first shielding ring is sleeved on the shielding layer and turns the shielding layer outwards, then the second shielding ring is sleeved on the turned-out shielding layer, the cable is peeled off to be in compression joint with an insulating layer with a proper distance, and the conductor penetrates through the second section of plug sleeve of the plug main body assembly to be in compression joint by special equipment. After the crimping is finished and the crimping quality is qualified, the insulating sleeve is arranged between the second section plug bush and the second shielding ring of the plug main body assembly, the insulating sleeve is provided with a buckle, the buckle is hollow cylindrical, the shielding ring is limited, the safe distance between the shielding ring and the second section plug bush is ensured, then the first metal shell and the wave spring on the cable are pulled towards the crimping end of the plug main body assembly and screwed with the connecting end screw thread of the first plug plastic shell of the plug main body assembly, the first metal shell and the shielding cover are contacted and conducted after screwing, and then the cable sealing ring and the second metal shell on the cable are pulled towards the crimping end of the plug main body assembly and screwed with the connecting end screw thread of the second metal shell and the connecting end screw thread of the first metal shell.
The second metal shell and the first metal shell are of polygonal structures (comprising the case of only two parallel opposite sides), so that the screw locking operation can be conveniently performed by using a tool. The internal surface of second metal casing and the surface of cable seal circle are the conical surface and inclination are different, two part complex oral area to root interference volume increase gradually, through the second metal casing with the first metal casing when screw the screw of screw, the second metal casing is pressed the cable seal circle more tightly more, in addition, the second metal casing is with the flange part of first metal casing screw locking back cable seal circle simultaneously with two metal casings interference, so realize reliable seal radially and axially simultaneously, and be equipped with one section step at the inlet wire end of second metal casing and increase the area of contact with the cable, double insurance, ensure that the connector can also satisfy protection level IP68 even under the cable bending state.
The socket part comprises a socket plastic shell, a plastic cap, a via pin, a socket gasket and a socket clamp spring.
The via pin is injection molded as an insert with the receptacle plastic housing, and the resulting assembly becomes a receptacle housing assembly.
The head of the via contact pin is provided with a boss, a groove is formed in the plastic cap, and the plastic cap can be pressed down forcefully to match the inner groove with the boss of the head of the via contact pin in place during assembly, so that connection of the inner groove and the boss of the head of the via contact pin is completed. The rear part of the via contact pin is provided with a conductive connecting sheet, and the conductive connecting sheet is provided with a through hole for bolting the copper bar or the terminal.
The socket plastic shell is provided with a flange, circular arc grooves are formed in the periphery of the cylindrical hollow shell on the front face of the flange and used for installing two socket snap springs, the socket snap springs are elliptical before being installed, and the socket snap springs are wrapped in the circular arc grooves on the socket plastic shell by self tension after being installed, so that reliable positioning along the axial direction is realized.
Openings are formed in two sides of the flange plate of the socket plastic shell, protrusions are arranged in the openings, after the socket gasket penetrates through the socket clamp spring, bending parts on two sides of the socket gasket are oppositely inserted and installed in the openings on two sides of the flange plate of the socket plastic shell, protrusions are arranged on the bending parts on two sides of the socket gasket and are clamped with the protrusions in the openings on two sides of the flange plate of the socket plastic shell, and connection between the socket gasket and the socket plastic shell is achieved.
A circular groove is formed in the back face of the flange plate of the socket plastic shell, the socket sealing ring is arranged in the groove, the width of the groove is smaller than the thickness of the socket sealing ring, and the socket sealing ring is prevented from falling off due to interference force generated by cooperation.
The locking sliding sleeve is characterized in that one side of the locking sliding sleeve is provided with a sliding clamping groove, the sliding clamping groove is a circumferential sliding clamping groove, the other side of the locking sliding sleeve is provided with a clamping groove, and the clamping groove is a linear groove with parallel axes.
When the plug part and the socket part are plugged, protruding marks on the flange of the plug arrow and the flange of the socket are aligned, meanwhile, a sliding clamping groove on the locking sliding sleeve and a clamping groove (linear groove) parallel to the axis are aligned with a socket clamp spring bending part on the socket, the plug is inserted into the socket by force, the locking sliding sleeve is rotated clockwise after being plugged in place, the bending part of the socket clamp spring is screwed into a circumferential groove part of the sliding clamping groove on the locking sliding sleeve, then the plug clamp spring is manually moved from the unlocking groove to the locking groove, the linear part of the plug clamp spring is inserted into the clamping groove of the locking sliding sleeve, and the locking sliding sleeve cannot rotate reversely, so that secondary locking of the plug and the socket is completed. At this moment, the locking sliding sleeve is contacted and conducted with the socket gasket and the spring ring simultaneously, so that the cable shielding layer is conducted to the first shielding ring, the second shielding ring, the wave spring, the first metal shell, the shielding cover, the spring ring, the locking sliding sleeve and the shielding circuit of the socket gasket, when the socket is installed on the corresponding metal plate installation surface on a vehicle, screws are installed in four holes on the socket gasket, the screws are contacted with the socket gasket and the metal plate of the vehicle simultaneously, and the conduction from the cable shielding to the metal plate is realized.
After the plug portion and the receptacle portion are inserted into place, the two first O-rings are interference fit with the receptacle plastic housing cavity of the receptacle, the two O-rings being designed to ensure that the protection class IP68 is met even when the plug and receptacle are not fully aligned.
The single-core bent angle connector meeting the IP68 protection level is reasonable in design, compact in structure, and the stability and sealing structure of the locking function of the locking structure under the long-term vibration working condition are required to meet the higher protection level IP68, and the locking structure is smaller in occupied space and more convenient to operate. Solves the following technical problems:
1. the problem of loosening of the connector during long-term use is solved;
2. the problem that the installation space of the connector is large and the assembly is time-consuming is solved;
3. the problem that the existing sealing technology has high installation accuracy requirements and insufficient resistance to severe environments is solved, for example, sealing failure is caused by incomplete centering between a plug and a socket under the condition of small cable bending radius during installation, when an automobile runs on a road surface with deep water accumulation in a rainy day, the problem of probabilistic water leakage exists at the plugging position or the cable inlet position of the connector, the protection level is improved to the level of IP68, and then the safety and reliability of the whole automobile electrical system are improved.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the overall structure of a single-core corner connector of the present invention, including a plug and a socket, wherein the plug and the socket are in a plugged state;
FIG. 2 is a cross-sectional view of a plug of the single core angled connector of the present invention;
fig. 3 is a schematic view 1 of a receptacle structure of a single-core bent angle connector according to the present invention;
fig. 4 is a schematic view of a receptacle structure of a single core corner connector according to the present invention 2;
FIG. 5 is a schematic view of a plug of the single core angled connector of the present invention;
FIG. 6 is a schematic view of a locking slip sleeve structure of a single core corner connector of the present invention;
fig. 7 is a schematic view of a receptacle structure of a single core corner connector of the present invention 3;
fig. 8 is a schematic view of a socket spacer structure of a single core corner connector of the present invention.
In the figure: 1: a plug portion; 101: a second section of plug bush; 102: a first section of insert (containing resilient contacts); 103: a first plug plastic housing; 104: a shield; 105: a second plug plastic housing; 106: plug clamp springs; 107: locking the sliding sleeve; 108: a first O-ring; 109: a spring ring; 110: a second O-ring; 111: a first metal housing; 112: an insulating sleeve; 113: a second metal housing; 114: a second shielding ring; 115: a wave spring; 116: a first shielding ring; 117: a cable sealing ring; 118: a cable; 2: a socket portion; 201: socket gasket; 202: a socket plastic housing; 203: a plastic cap; 204: a via pin; 205: socket clamp springs; 206: a socket sealing ring; 207: a flange plate; 208: a cylindrical hollow housing; 209: an arc groove; 210: a conductive connecting piece; 211: a through hole; 212: a protrusion.
Detailed Description
Referring to fig. 1 to 8, the single core corner connector satisfying the IP68 protection level includes a plug portion 1 and a socket portion 2, the plug portion 1 is connected with the socket portion 2 by being inserted and locked by a locking slide sleeve 107.
The plug portion 1 includes a second-stage plug bush 101, a first-stage plug bush (including elastic contacts) 102, a first plug plastic housing 103, a shield case 104, a second plug plastic housing 105, a plug clip spring 106, a locking slide bush 107, a first O-ring 108, a spring ring 109, a second O-ring 110, a first metal housing 111, an insulating bush 112, a second metal housing 113, a second shield ring 114, a wave spring 115, a first shield ring 116, a cable seal 117, and a cable 118.
The first section plug bush 102 and the second section plug bush 101 are in threaded connection and then are used as inserts to be integrally injection-molded with the first plug plastic housing 103, then a shielding cover (divided into a left half and a right half) 104 is wrapped on the outside, the shielding cover is integrally injection-molded, the second plug plastic housing 105 is formed on the outside, and the second section plug bush 101, the first section plug bush 102, the first plug plastic housing 103, the shielding cover 104 and the second plug plastic housing 105 jointly form a main body part of the plug, which is called a plug main body assembly, as shown in fig. 5. By adopting the process for integrating the insert sleeve and the shielding cover with the injection molding process of the plastic shell, an injection molding manufacturer can be entrusted to purchase the insert, the quantity of incoming materials is reduced, the management of suppliers is facilitated, and the assembly procedures and time of products are reduced. The first section sleeve 102 is provided with a crown spring or other structural resilient contact.
The front part of the first plug plastic housing 103 is provided with a spring ring mounting groove 119, a spring ring 109 is arranged between the locking sliding sleeve 107 and the first plug plastic housing 103 (plug main body assembly), the spring ring 109 is made of elastic spring stainless steel wires, and is clamped in the spring ring mounting groove 119 arranged at the front part of the first plug plastic housing 103 after being assembled in place, at the moment, the spring ring 109 is in contact with the shielding cover 104, and meanwhile, the locking sliding sleeve 3 is limited and locked.
The outer side of the rear part of the second plug plastic shell 105 is provided with a locking groove and an unlocking groove for installing a plug clamp spring, and the locking groove and the unlocking groove adopt cylindrical grooves.
Two first O-ring mounting grooves are formed in the periphery of the front portion of the first plug plastic housing 103 and the socket mating end.
Two first O-rings 108 are mounted to the front of the first plug plastic housing 103, respectively.
The plug clamp spring 106 is installed in a cylindrical groove corresponding to the locking groove 120 and the unlocking groove 121 arranged on the outer side of the rear portion of the second plug plastic housing 105, and the plug clamp spring 106 can be manually clamped in the locking groove 120 or the unlocking groove 121 (as shown in fig. 5) on the second plug plastic housing 105.
A second O-ring 110 is mounted in a recess in the plug body assembly adjacent the crimp bore end of the second segment plug wrap 101.
When the plug is connected and assembled with a cable, the second metal shell 113, the cable sealing ring 117, the first metal shell 111 and the wave spring 115 are sequentially penetrated on the cable 107, then the cable sheath is peeled off to expose a section of shielding layer, the first shielding ring 116 is sleeved on the shielding layer and turns the shielding layer outward, then the second shielding ring 114 is sleeved on the turned shielding layer, the cable is peeled off to be in compression joint with an insulating layer with a proper distance, and the conductor is penetrated into the second section of plug sleeve 101 of the plug main body assembly to be in compression joint by special equipment. After the crimping is finished and the crimping quality is qualified, the insulating sleeve 112 is arranged between the second section plug bush 101 and the second shielding ring 114 of the plug main body assembly, a buckle is arranged on the insulating sleeve 112, the insulating sleeve is hollow cylindrical after being buckled, the shielding ring is limited, the safe distance between the shielding and the second section plug bush 101 is ensured, then the first metal shell 111 and the wave spring 115 on the cable 107 are pulled towards the crimping end of the plug main body assembly and screwed with the connecting end of the first metal shell 111 and the first plug plastic shell 103 of the plug main body assembly 1-1, the first metal shell 111 is contacted and conducted with the shielding cover 104 after screwing, and then the cable sealing ring 117 and the second metal shell 113 on the cable 107 are pulled towards the crimping end of the plug main body assembly 1-1 and screwed with the connecting end of the second metal shell 113 and the first metal shell 111.
The second metal casing 113 and the first metal casing 111 have polygonal shapes (including the case of only two parallel opposite sides), so that the screw locking operation is facilitated by using a tool. The inner surface of the second metal shell 113 and the outer surface of the cable sealing ring 117 are conical surfaces and different in inclination angles, the interference amount from the mouth to the root of the two parts is gradually increased, the cable sealing ring 117 is pressed more and more tightly by the second metal shell 113 when the second metal shell 113 is screwed with the threads of the first metal shell 111, in addition, the flange part of the cable sealing ring 117 is interfered with the two metal shells simultaneously after the second metal shell 113 is screwed with the threads of the first metal shell 111, so that reliable sealing is realized simultaneously in the radial direction and the axial direction, and a step is arranged at the inlet end of the second metal shell 113 to enlarge the contact area with a cable, so that double insurance is ensured, and the connector can meet the protection grade IP68 even in the cable bending state.
The socket part 2 comprises a socket plastic housing 202, a plastic cap 203, via pins 204, socket gaskets 201 and socket snap springs 205.
The via pin 204 is injection molded as an insert with the receptacle plastic housing 202, and the resulting assembly becomes the receptacle housing assembly 2-1.
The head of the via pin 204 is provided with a boss, a groove is formed in the plastic cap 203, and the plastic cap 203 can be pressed down forcibly during assembly to match the inner groove with the boss of the head of the via pin 204 in place, so that the connection of the inner groove and the boss of the head of the via pin 204 is completed. The rear portion of the via pin 204 is provided with a conductive connection piece 210, and the conductive connection piece 210 is provided with a through hole 211 for bolting copper bars or terminals.
The socket plastic shell 202 is provided with a flange plate 207, circular arc grooves 209 are formed in the periphery of a cylindrical hollow shell 208 on the front surface of the flange plate 207 and used for installing two socket clamp springs 205, the socket clamp springs 205 are elliptical before being installed, and the socket clamp springs 205 are wrapped in the circular arc grooves 209 on the socket plastic shell 202 by self tension after being installed, so that reliable positioning along the axial direction is realized.
Openings are formed in two sides of the flange 207 of the socket plastic shell 202, protrusions are arranged in the openings, after the socket gasket 201 passes through the socket clamp spring 205, bent parts on two sides of the socket gasket 201 are inserted into the openings on two sides of the flange 207 of the socket plastic shell 202, protrusions 212 are arranged on the bent parts on two sides of the socket gasket 201 and are clamped with the protrusions in the openings on two sides of the flange 207 of the socket plastic shell 202, and connection between the socket gasket 201 and the socket plastic shell 202 is achieved.
The back of the flange 207 of the socket plastic shell 202 is provided with a circular groove, the socket sealing ring 206 is arranged in the groove, the width of the groove is smaller than the thickness of the socket sealing ring 206, and the socket sealing ring 206 is prevented from falling off by interference force generated by cooperation.
The locking sliding sleeve 107 is provided with a sliding clamping groove 122 on one side, the sliding clamping groove 122 is a circumferential sliding clamping groove, the locking sliding sleeve 107 is provided with a clamping groove 123 on the other side, and the clamping groove 123 is a linear groove with parallel axes.
When the plug part 1 and the socket part 2 are plugged, the protruding marks on the flange 207 of the plug arrow and the socket are aligned, meanwhile, the part of the sliding clamping groove 122 on the locking sliding sleeve 107, which is parallel to the axis, is aligned with the bending part of the socket clamping spring 205 on the socket 2, the plug is inserted into the socket by force, after the plug is plugged in place, the locking sliding sleeve 107 is rotated clockwise, the bending part of the socket clamping spring 205 is screwed into the circumferential groove part of the sliding clamping groove 122 on the locking sliding sleeve 107, then the plug clamping spring 106 is manually moved from the unlocking groove 121 to the locking groove 120, the straight line part of the plug clamping spring 106 is inserted into the clamping groove 123 of the locking sliding sleeve 107, the locking sliding sleeve 107 cannot rotate reversely, and the secondary locking of the plug and the socket is completed. At this time, the locking sliding sleeve 107 is simultaneously contacted with the socket gasket 201 and the spring ring 109 for conduction, so that the conduction from the cable shielding layer to the shielding circuit of the first shielding ring 116, the second shielding ring 114, the wave spring 115, the first metal shell 111, the shielding cover 104, the spring ring 109, the locking sliding sleeve 107 and the socket gasket 201 is realized, when the socket 2 is installed on the corresponding metal plate installation surface on a vehicle, screws are installed in four holes on the socket gasket 201, and the screws are simultaneously contacted with the socket gasket 201 and the metal plate of the vehicle, so that the conduction from the cable shielding to the metal plate is realized.
After the plug portion 1 and the receptacle portion 2 are inserted into place, the two first O-rings 108 are interference fit with the interior cavity of the receptacle plastic housing 202 of the receptacle 2, the two O-rings being designed to ensure that the protection class IP68 is met even when the plug 1 and the receptacle 2 are not fully aligned.
The first plug plastic shell is in a bent angle shape.
IP67 refers to the level of security for protection. IP is an abbreviation for Ingress Protection Rating (or International Protection code) which defines the protection of an interface against liquid and solid particles. IP is followed by 2 digits, 1 st is a solid protection level, the range is 0-6, and the protection from large particle foreign matters to dust is respectively indicated; the 2 nd is a liquid protection rating ranging from 0 to 8, respectively indicating protection from vertical water drops to the water bottom pressure. The larger the number the more powerful the capability. The explanation of IP67 is that dust is prevented from being sucked (contact is prevented as a whole, dust is prevented from penetrating); protection from brief soaking (anti-soaking). The highest implementation in the cabling industry is currently at the IP68 level. Besides, industrial connectors also have temperature, shock resistance, and other severe environmental concerns.
The single-core bent angle connector product meeting the IP68 protection level is detected: the dust density rating of IP6X specified in GB4208 can be met, as well as the continuous diving test IPX8 water resistance rating of the test sample placed 1000mm below the water surface for 24 hours.
Claims (9)
1. A single core corner connector satisfying IP68 protection class, characterized in that: the plug part is connected with the socket part in a plugging way and is locked through a locking sliding sleeve;
the plug part comprises a second section plug bush, a first plug plastic shell, a shielding cover, a second plug plastic shell, a plug clamp spring, a locking sliding sleeve, a first O-shaped ring, a spring ring, a second O-shaped ring, a first metal shell, an insulating sleeve, a second metal shell, a second shielding ring, a wave spring, a first shielding ring, a cable sealing ring and a cable;
the first section plug bush and the second section plug bush are connected through threads and then are used as inserts to be integrated with the first plug plastic shell in an injection molding mode, then a shielding cover is wrapped on the outside of the first section plug bush and the second section plug bush, the first plug plastic shell, the shielding cover and the second plug plastic shell are integrated into a whole and then are subjected to injection molding, the second plug plastic shell is formed on the outside of the first section plug bush and the second section plug bush, and the first plug plastic shell, the shielding cover and the second plug plastic shell jointly form a main body part of the plug, which is called a plug main body assembly;
the front part of the first plug plastic shell is provided with a spring ring mounting groove, a spring ring is arranged between the locking sliding sleeve and the first plug plastic shell, the spring ring is clamped in the spring ring mounting groove arranged at the front part of the first plug plastic shell after being assembled in place, and at the moment, the spring ring is in contact with the shielding cover, and meanwhile, the locking sliding sleeve is limited and locked;
the outer side of the rear part of the second plug plastic shell is provided with a locking groove and an unlocking groove for installing a plug snap spring,
two first O-shaped ring mounting grooves are arranged on the periphery of the front part of the first plug plastic shell and the matched end of the socket,
the two first O-shaped rings are respectively arranged at the front part of the first plug plastic shell;
the plug clamp spring is arranged in a cylindrical groove corresponding to the locking groove and the unlocking groove arranged on the outer side of the rear part of the second plug plastic shell, and can be manually clamped in the locking groove or the unlocking groove on the second plug plastic shell;
the second O-shaped ring is arranged in a groove of the plug main body assembly, which is close to the press-fit hole end of the second section plug bush;
the socket part comprises a socket plastic shell, a plastic cap, a via contact pin, a socket gasket and a socket clamp spring;
the via contact pin is used as an insert to be integrally injection-molded with the socket plastic shell, and the formed assembly becomes a socket shell assembly;
the head of the via pin is provided with a boss, a groove is formed in the plastic cap, and the plastic cap can be pressed down forcefully to match the inner groove with the boss of the head of the via pin in place during assembly, so that the connection of the inner groove and the boss of the head of the via pin is completed; the rear part of the via contact pin is provided with a conductive connecting sheet, and the conductive connecting sheet is provided with a through hole for bolting copper bars or terminals;
the socket plastic shell is provided with a flange, the periphery of the cylindrical hollow shell on the front side of the flange is provided with arc grooves for installing two socket snap springs, the socket snap springs are elliptical before being installed, and the socket snap springs are wrapped in the arc grooves on the socket plastic shell by self tension after being installed, so that reliable positioning along the axial direction is realized;
openings are formed in two sides of the flange plate of the socket plastic shell, protrusions are arranged in the openings, after the socket gasket penetrates through the socket clamp spring, bent parts on two sides of the socket gasket are oppositely inserted and installed in the openings on two sides of the flange plate of the socket plastic shell, the protrusions are arranged on the bent parts on two sides of the socket gasket and are clamped with the protrusions in the openings on two sides of the flange plate of the socket plastic shell, and connection between the socket gasket and the socket plastic shell is achieved;
a circular groove is formed in the back face of the flange plate of the socket plastic shell, the socket sealing ring is arranged in the groove, the width of the groove is smaller than the thickness of the socket sealing ring, and the socket sealing ring is prevented from falling off due to interference force generated by cooperation.
2. The single core corner connector satisfying the IP68 protection class of claim 1, wherein: when the plug is connected and assembled with a cable, the second metal shell, the cable sealing ring, the first metal shell and the wave spring sequentially penetrate through the cable, the cable sheath is stripped to expose a section of shielding layer, the first shielding ring is sleeved on the shielding layer and turns the shielding layer outwards, the second shielding ring is sleeved on the turned-out shielding layer, the cable is stripped to be in compression joint with an insulation layer with a proper distance, the conductor penetrates into the second section plug bush of the plug main body assembly to be in compression joint by special equipment, the insulation sleeve is arranged between the second section plug bush and the second shielding ring of the plug main body assembly after the compression joint is qualified in compression joint quality, a buckle is arranged on the insulation sleeve, the hollow cylinder is formed to limit the shielding ring after the buckling, the safety distance between the shielding layer and the second section plug bush is ensured, then the first metal shell and the wave spring on the cable are pulled towards the compression joint end of the plug main body assembly and the first plug plastic shell connecting end of the plug main body assembly, the first metal shell and the shielding cover are in contact with each other after the first metal shell and the second metal shell connecting end of the plug main body assembly are screwed, and the second metal shell connecting end of the plug main body assembly are screwed tightly.
3. The single core corner connector satisfying the IP68 protection class of claim 1, wherein: the second metal shell and the first metal shell are of polygonal structures, so that the screw locking operation by using a tool is facilitated; the internal surface of second metal casing and the surface of cable seal circle are the conical surface and inclination are different, two part complex oral area to root interference volume increase gradually, through the second metal casing with the first metal casing when screw the screw of screw, the second metal casing is pressed the cable seal circle more tightly more, in addition, the second metal casing is with the flange part of first metal casing screw locking back cable seal circle simultaneously with two metal casings interference, so realize reliable seal radially and axially simultaneously, and be equipped with one section step at the inlet wire end of second metal casing and increase the area of contact with the cable, double insurance, ensure that the connector can also satisfy protection level IP68 even under the cable bending state.
4. The single core corner connector satisfying the IP68 protection class of claim 1, wherein: the socket part comprises a socket plastic shell, a plastic cap, a via pin, a socket gasket and a socket clamp spring.
5. The single core corner connector satisfying the IP68 protection class of claim 1, wherein: the via pin is injection molded as an insert with the receptacle plastic housing, and the resulting assembly becomes a receptacle housing assembly.
6. The single core corner connector satisfying the IP68 protection class of claim 1, wherein: the locking sliding sleeve is characterized in that one side of the locking sliding sleeve is provided with a sliding clamping groove, the sliding clamping groove is a circumferential sliding clamping groove, the other side of the locking sliding sleeve is provided with a clamping groove, and the clamping groove is a linear groove with parallel axes.
7. The single core corner connector satisfying the IP68 protection class of claim 1, wherein: when the plug part and the socket part are inserted, firstly, the protruding marks on the flange of the plug arrow and the flange of the socket are aligned, meanwhile, the sliding clamping groove on the locking sliding sleeve and the clamping groove parallel to the axis are aligned with the socket clamp spring bending part on the socket, the plug is inserted into the socket by force, the locking sliding sleeve is rotated clockwise after being inserted in place, the bending part of the socket clamp spring is screwed into the circumferential groove part of the sliding clamping groove on the locking sliding sleeve, then the plug clamp spring is manually moved from the unlocking groove to the locking groove, the straight line part of the plug clamp spring is inserted into the clamping groove of the locking sliding sleeve, the locking sliding sleeve cannot rotate reversely, and the secondary locking of the plug and the socket is completed, at the moment, the locking sliding sleeve, the socket gasket and the spring ring are simultaneously contacted and conducted, so that the cable shielding layer is conducted to the first shielding ring, the second shielding ring, the wave spring ring, the first metal shell, the locking sliding sleeve and the shielding circuit of the socket gasket are conducted, and the screw are installed in the four holes on the socket gasket when the socket is installed on the corresponding metal plate mounting surface on the vehicle, and the screw is contacted with the socket and the metal plate shielding layer is conducted to the metal plate of the cable at the same time; after the plug and receptacle portions are inserted in place, the two first O-rings are interference fit with the receptacle plastic housing cavity of the receptacle, the two first O-rings being designed to ensure that the protection class IP68 is met even when the plug and receptacle are not properly centered.
8. The single core corner connector satisfying the IP68 protection class of claim 1, wherein: the first section plug bush is provided with a crown spring or other elastic contact pieces.
9. The single core corner connector satisfying the IP68 protection class of claim 1, wherein: the rear part of the via contact pin is provided with a conductive connecting sheet, and the conductive connecting sheet is provided with a through hole for bolting the copper bar or the terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810439718.9A CN108448311B (en) | 2018-05-09 | 2018-05-09 | Single-core bent angle connector meeting IP68 protection grade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810439718.9A CN108448311B (en) | 2018-05-09 | 2018-05-09 | Single-core bent angle connector meeting IP68 protection grade |
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| Publication Number | Publication Date |
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| CN108448311A CN108448311A (en) | 2018-08-24 |
| CN108448311B true CN108448311B (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810439718.9A Active CN108448311B (en) | 2018-05-09 | 2018-05-09 | Single-core bent angle connector meeting IP68 protection grade |
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| CN109638548B (en) * | 2018-11-12 | 2020-03-31 | 河南省鼎润科技实业有限公司 | High-speed data transmission corner connector |
| CN110197965B (en) * | 2019-06-03 | 2024-01-19 | 核工业理化工程研究院 | Electric connector with shielding and self-locking functions applied to 30kV high-voltage equipment system |
| CN110247250A (en) * | 2019-06-28 | 2019-09-17 | 中航光电科技股份有限公司 | Power connector is locked using the plug and self-sealing bolt of plastic packaging terminal component |
| CN111029048A (en) * | 2019-12-18 | 2020-04-17 | 成都飞机工业（集团）有限责任公司 | Special shielding treatment method for cable |
| CN112731058B (en) * | 2020-12-22 | 2024-01-30 | 宁波东方电缆股份有限公司 | Transmission adjusting mechanism for cable installation platform |
| CN113904177B (en) * | 2021-10-10 | 2022-06-21 | 安徽江淮汽车集团股份有限公司 | Power battery connector protection device |
| CN113964570A (en) * | 2021-10-25 | 2022-01-21 | 广东杰思通讯股份有限公司 | Connector structure and new energy automobile with same |
| CN114583496B (en) * | 2022-04-01 | 2023-11-24 | 坎德拉(深圳)新能源科技有限公司 | High-voltage connector suitable for flywheel energy storage unit |
| CN116706609B (en) * | 2023-05-16 | 2024-04-05 | 东莞市典威电子有限公司 | Energy storage electric connector |
| CN116937072B (en) * | 2023-09-15 | 2023-11-28 | 苏州正北连接技术有限公司 | Compact flexible connecting device and use method thereof |
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| CN108448311A (en) | 2018-08-24 |
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