US20110151707A1 - A connector with a connecting member with a screw portion penetrating the insulators and terminals of two mating terminal housings - Google Patents
A connector with a connecting member with a screw portion penetrating the insulators and terminals of two mating terminal housings Download PDFInfo
- Publication number
- US20110151707A1 US20110151707A1 US12/857,964 US85796410A US2011151707A1 US 20110151707 A1 US20110151707 A1 US 20110151707A1 US 85796410 A US85796410 A US 85796410A US 2011151707 A1 US2011151707 A1 US 2011151707A1
- Authority
- US
- United States
- Prior art keywords
- connecting terminals
- terminal housing
- insulation
- connector
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/36—Temperature of vehicle components or parts
-
- 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
- H01R13/621—Bolt, set screw or screw clamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2105/00—Three poles
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- This invention relates to a connection structure, for use in eco-friendly cars, such as hybrid vehicles, electric vehicles and the like, and in particular, for being capable of use for a portion to connect a power harness, which is used for large power transmission.
- a power harness which is used for large power transmission for connection between devices, has at its one end a connector, which consists of two separate portions: a male connector portion with a male terminal and a first terminal housing accommodating that male terminal, and a female connector portion with a female terminal connected with the male terminal and a second terminal housing accommodating that female terminal (See, e.g., JP-A-2009-70754)
- JP-B-4037199 a technique as described below, which has been disclosed by JP-B-4037199, is known in the art.
- JP-B-4037199 discloses an electrical connection structure for a vehicle, which is for connecting multiphase connecting terminals of a conductive member drawn out from a motor for driving the vehicle, and multiphase connecting terminals of a power line cable drawn out from an inverter for driving the motor.
- the technique used in the electrical connection structure disclosed JP-B-4037199 is as follows: Each phase connecting terminal of the conductive member and each corresponding phase connecting terminal of the power line cable are overlapped, and isolating members are disposed on opposite surfaces to the overlapped surfaces of the connecting terminals, respectively, and these overlapped connecting terminals and isolating members are collectively fastened in an overlapping direction with a single bolt provided in a position to penetrate these overlapped connecting terminals and isolating members.
- the single bolt is tightened in the overlapping direction (or stacking direction), to collectively hold the multiplicity of contacts between the connecting terminals, which are the overlapped surfaces of the connecting terminals, and thereby fix the connecting terminals at the contacts therebetween, for electrical connections between the connecting terminals, respectively.
- the construction disclosed by JP-B-4037199 is effective in easily ensuring size reduction, compared to a technique disclosed by JP-A-2009-070754.
- JP-B-4037199 may have the following problem. Since a pace of fastening the bolt is synchronized with a pace of pressing the contacts (the contacts being pressed with strength corresponding to the fastening distance of the bolt), a predetermined fastening distance is needed to get a predetermined pressing force and thus may be an obstacle to the downsizing of the connector.
- the inventors have contemplated a reduction in dimension in the overlapping direction (or the stacking direction) in order to further downsize the connector.
- a connector comprises:
- first terminal housing with a plurality of first connecting terminals aligned and accommodated therein;
- a second terminal housing with a plurality of second connecting terminals aligned and accommodated therein;
- a connecting member comprising a head and a shaft connected to the head, the shaft penetrating contacts between the plurality of first connecting terminals and the plurality of second connecting terminals and the plurality of insulation members, the head pressing an adjacent insulation member, to thereby collectively fix the plurality of first connecting terminals and the plurality of second connecting terminals at the contacts for electrical connections therebetween, at least a portion of the connecting member, which penetrates the contacts, being comprised of a nonconductive material;
- shaft and/or the head comprises a first screw part to screw the connecting member into the first terminal housing and/or the second terminal housing
- the shaft comprises a second screw part to screw into an insulation member of the plurality of the insulation members at a forward end in an insertion direction of the connecting member, the second screw part comprising a screw pitch greater than the first screw part, and
- the second screw part comprises a screw diameter greater than the first screw part.
- the insulation member screwed into by the shaft is formed so as not to rotate around the shaft when the connecting member rotates, and
- the other insulation members except the insulation member screwed into by the shaft are each integrally fixed to the first connecting terminals adjacent thereto.
- the connector further comprises:
- a connector is constructed such that it includes a first screw part and a second screw part having a larger screw pitch than the first screw part and, when the first screw part is screwed into a threaded screw hole of a first terminal housing, a pressing force can be provided from two directions so as to sandwich each contact between a head (i.e., an elastic member for pressing the head) of a connecting member and a second insulation member. Therefore, even when the stroke distance is shorter than before, a pressing force sufficient to fix the contacts can be obtained.
- the stroke distance of the connecting member can be shortened and the dimension in the overlapping direction (i.e., in the stacking direction) can be thereby reduced, so that the connector can be further downsized.
- FIG. 1 is a perspective view schematically showing a first connector part and a second connector part that constitute a connector according to one embodiment of the invention
- FIG. 2 is a perspective view schematically showing the connector after the first connector part and the second connector part are fitted to each other;
- FIG. 3 is a cross-sectional view schematically showing the connector after the first connector part and the second connector part are fitted to each other;
- FIG. 4 is a cross-sectional view schematically showing the first connector part
- FIG. 5A is a side view schematically showing a first connecting terminal
- FIG. 5B is a bottom view schematically showing a first connecting terminal
- FIG. 6 is a cross-sectional view schematically showing the second connector part
- FIG. 7A is a side view schematically showing a second connecting terminal
- FIG. 7 B is a bottom view schematically showing a second connecting terminal
- FIG. 8A is a side view schematically showing a second connecting terminal
- FIG. 8 B is a bottom view schematically showing a second connecting terminal
- FIG. 9 is a perspective view schematically showing the connector before the first connector part and the second connector part are fitted to each other.
- FIG. 10 is an enlarged explanatory view of the essential parts of the connection between the first connecting terminals and the second connecting terminals that uses the connector shown in FIG. 1 .
- FIG. 1 is a perspective view schematically showing a first connector part and a second connector part that constitute an connector according to one embodiment of the invention
- FIG. 2 is a perspective view schematically showing the connector after the first connector part and the second connector part are fitted to each other
- FIG. 3 is a cross-sectional view schematically showing the connector after the first connector part and the second connector part are fitted to each other.
- a connector 1 includes a first connector part 2 and a second connector part 3 and is used for collectively connecting a plurality of power-supply lines by allowing the connector parts 2 , 3 to be fitted to each other.
- the connector 1 includes the first connector part 2 having a first terminal housing 5 in which a plurality of (three) first connecting terminals (male terminals) 4 a to 4 c are housed in alignment with each other, the second connector part 3 having a second terminal housing 7 in which a plurality of (three) second connecting terminals (female terminals) 6 a to 6 c are housed in alignment with each other and a plurality of insulation members 8 a to 8 d housed in the first terminal housing 5 in alignment with each other, installed so as to sandwich each of a plurality of the first connecting terminals 4 a to 4 c , and used for insulating among the first connecting terminals 4 a to 4 c , and in the connector 1 , when the first terminal housing 5 of the first connector part 2 and the second terminal housing 7 of the second connector part 3 are fitted to each other, each one surface of a plurality of the first connecting terminals 4 a to 4 c and each one surface of a plurality of the second connecting terminals 6 a to
- the connector 1 is used for, for example, connection between a vehicle drive motor and an inverter which drives the motor.
- the first terminal housing 5 ( FIG. 1 shows as a part located in a left side) of the first connector part 2 is fitted to a shield case of the motor, and a portion of the first connecting terminals 4 a to 4 c exposed from the first terminal housing 5 is connected to each terminal in a terminal block installed in the shield case of the motor.
- the second connector part 3 that electrically connects to the inverter is fitted to the first connector part 2 , so that the motor and the inverter are connected to each other.
- a case of connection in the motor side has been explained, but a case of connection in the inverter side is similar to the case of the motor side.
- the first connector part 2 internally holds three first connecting terminals 4 a to 4 c located apart at certain intervals in alignment with each other, and has the first terminal housing 5 in which three first connecting terminals 4 a to 4 c are housed in alignment with each other, a plurality of insulation members 8 a to 8 d having a nearly rectangular parallelepiped shape housed in the first terminal housing 5 in alignment with each other, and a connecting member 9 (a passing through type connecting member) that has a head 9 b and a shaft 9 a connected to the head 9 b , collectively fixes and electrically connects a plurality of the first connecting terminals 4 a to 4 c and a plurality of the second connecting terminals 6 a to 6 c at each contact by allowing the shaft 9 a to pass through each contact of a plurality of the first connecting terminals 4 a to 4 c and a plurality of the second connecting terminals 6 a to 6 c and a plurality of the insulation members 8 a to 8
- the first terminal housing 5 can be any one of a male type one (a male side terminal housing) and a female type one (a female side terminal housing) as a terminal housing.
- a male side terminal housing a male side terminal housing
- a female side terminal housing a female side terminal housing
- the first connecting terminals 4 a to 4 c are respectively a plate-like terminal, are formed of a nonconductive resin such as polyphenylene sulfide (PPS) resin, polyphthalamide (PPA) resin, polyamide (PA) resin, polybutylene terephthalate (PBT) resin, epoxy based resin, and are held in a resin compact 10 that is a part of the first terminal housing 5 so as to be located apart at certain intervals in alignment with each other.
- a nonconductive resin such as polyphenylene sulfide (PPS) resin, polyphthalamide (PPA) resin, polyamide (PA) resin, polybutylene terephthalate (PBT) resin, epoxy based resin
- a method of allowing the resin compact 10 to hold the first connecting terminals 4 a to 4 c includes, for example, a method of inserting the first connecting terminals 4 a to 4 c into the resin at the time of molding the resin compact 10 and then hardening the resin so as to allow the resin compact 10 to hold the first connecting terminals 4 a to 4 c and a method of pressing the first connecting terminals 4 a to 4 c into the resin compact 10 that is preliminarily molded so as to allow the resin compact 10 to hold the first connecting terminals 4 a to 4 c.
- each of the first connecting terminals 4 a to 4 c is integrally fixed to the insulation members 8 a to 8 c that is arranged in the other surface (a surface opposite to the surface to be bonded to the second connecting terminals 6 a to 6 c ) side adjacently.
- the resin compact 10 holds the first connecting terminals 4 a to 4 c so as to be located apart at certain intervals in alignment with each other, but the insulation members 8 a to 8 c are integrally fixed to forward end side of the respective first connecting terminals 4 a to 4 c , so that as a result, the insulation members 8 a to 8 c are also located apart at certain intervals in alignment with each other. Due to this composition, insulation properties among each contacts and insertion properties of the second connecting terminals 6 a to 6 c at the fitting can be ensured.
- Electricity of different voltage and/or different current transmits to each of the first connecting terminals 4 a to 4 c .
- a power line of three-phase alternating current used for a connection between a motor and an inverter is assumed, and an alternating current having different phases by 120 degrees is transmitted to each of the first connecting terminals 4 a to 4 c .
- each of the first connecting terminals 4 a to 4 c is formed of metal having high electric conductivity such as silver, copper, aluminum.
- each of the first connecting terminals 4 a to 4 c has a certain degree of flexibility.
- a plurality of the insulation members 8 a to 8 d include a plurality of the first insulation members 8 a to 8 c housed in the first terminal housing 5 in alignment with each other and integrally fixed to each of the other surfaces (surfaces opposite to the surfaces to be bonded to the second connecting terminals 6 a to 6 c ) of the first connecting terminals 4 a to 4 c , and the second insulation member 8 d housed in the first terminal housing 5 and disposed so as to face the other surface (a surface opposite to the surface to be bonded to the first connecting terminal 4 c ) of the second connecting terminal 6 c that locates at the outermost position when a plurality of the first connecting terminals 4 a to 4 c and a plurality of the second connecting terminal 6 a to 6 c are stacked.
- a plurality of the insulation members 8 a to 8 d are fixed in such a position that they project from the forward ends of the first connecting terminals 4 a to 4 c .
- Each of the insulation members 8 a to 8 d are chamfered at each of the corners located at the side into (from) which the second connecting terminals 6 a to 6 c are inserted (removed).
- fitting grooves 11 are formed in the first insulation member 8 a to 8 c , so as to be fitted by the first connecting terminals 4 a to 4 c as objects to be fixed.
- the first connecting terminals 4 a to 4 c as objects to be fixed are fitted and integrally fixed to the fitting grooves 11 .
- the first insulation member 8 a is shown by simplifying the structure thereof and the first insulation members 8 a to 8 c are shown in the same fashion.
- the connecting member 9 has a shaft 9 a that passes through a plurality of the bonding terminal pairs including a plurality of the first connecting terminals 4 a to 4 c and a plurality of the second connecting terminals 6 a to 6 c that face each other and is formed so as to be nonconductive at least in a surface that contacts a plurality of the bonding terminal pairs, and a head 9 b that is integrally formed with the shaft 9 a as a pressing part.
- the connecting member 9 includes a bolt 12 made of metal such as SUS, iron, copper alloy (for example, a cap bolt) and an insulation layer 13 formed by that a periphery of the shaft 9 a is coated with a nonconductive resin as a nonconductive material such as polyphenylene sulfide (PPS) resin, polyphthalamide (PPA) resin, polyamide (PA) resin, polybutylene terephthalate (PBT) resin, epoxy based resin.
- a hexagon socket not shown is formed in the head 9 b of the bolt 12 , and a fastening tool such as an open-end wrench is fitted to the hexagon socket so that the bolt 12 can be rotated and fastened.
- the connecting member 9 a member that is wholly formed of the nonconductive resin can be used, but it is preferable to use a member having a structure that a periphery of the shaft 9 a of the bolt 12 of metal is covered with the insulation layer 13 in terms of strength. Namely, the connecting member 9 is formed so as to have a compromise structure between the bolt 12 of metal and the insulation layer 13 of the nonconductive resin so that the strength can be enhanced in comparison with a case that the whole of the connecting member 9 is formed of the nonconductive resin.
- the nonconductive resin with which the bolt 12 of metal is coated it is preferable to use a resin that has a linear coefficient of expansion close to that of the metal constituting the bolt 12 in order to prevent creep.
- a first screw part 18 for being screwed to the first terminal housing 5 is formed.
- a second screw part 45 is formed, the second screw part 45 being formed for being screwed to a female screw 44 of the insulation member (particularly, in the embodiment, the second insulation member 8 d ) that is arranged in the forward end side of the connecting member 9 in the insertion direction of connecting member 9 , and having a screw pitch larger than the first screw part 18 .
- a packing 14 for preventing water from entering into the first terminal housing 5 is installed in a periphery of the head 9 b of the connecting member 9 .
- an elastic member 15 is installed between a lower surface of the head 9 b of the connecting member 9 and an upper surface of the first insulation member 8 a arranged directly below the head 9 b , the elastic member 15 being used for applying a predetermined pressing force to the first insulation member 8 a .
- the elastic member 15 is formed of, for example, a spring of metal such as SUS. Further, in embodiment, the elastic member 15 is positioned as a part of the connecting member 9 .
- a concave portion 16 covering (housing) the lower portion of the elastic member 15 is formed, and in a bottom portion of the concave portion 16 (namely, a seat portion with which the lower portion of the elastic member 15 contacts), a receiving member 17 of metal such as SUS is installed, the receiving member 17 being used for receiving the elastic member 15 and preventing the first insulation member 8 a formed of the nonconductive resin from being damaged.
- the receiving member 17 prevents the damage of the first insulation member 8 a by dispersing stress applied to the upper surface of the first insulation member 8 a from the elastic member 15 . Consequently, it is preferable that a contact area of the receiving member 17 and the first insulation member 8 a is formed so as to be as large as possible. In the embodiment, in order to increase the contact area of the receiving member 17 and the first insulation member 8 a , the receiving member 17 having a shape that it contacts over the entire bottom surface of the concave portion 16 is installed.
- the connecting member 9 is inserted into the first terminal housing 5 from the surface sides of the first connecting terminals 4 a to 4 c to which the first insulation members 8 a to 8 c are fixed ( FIG. 4 shows as the upper surface sides), and presses them from the head 9 b of the connecting member 9 to the forward end of the shaft 9 a ( FIG. 4 shows as from the upper portion to the lower portion) by that the first screw part 18 located at the forward end of the shaft 9 a is screwed to a threaded screw hole 19 formed on the inner peripheral surface of the first terminal housing 5 , and collectively fixes and electrically connects a plurality of the first connecting terminals 4 a to 4 c and a plurality of the second connecting terminals 6 a to 6 c at each contact.
- the connecting member 9 is inserted into the first terminal housing 5 and then is fastened and fixed by that the first screw part 18 is screwed to the threaded screw hole 19 , so that if the first screw part 18 has the same screw diameter that the second screw part 45 has, due to the fact that the first screw part 18 has a different screw pitch from the second screw part 45 , the connecting member 9 can not be inserted into the first terminal housing 5 so as to pass through the first connecting terminals 4 a to 4 c and the insulation members 8 a to 8 d . Consequently, in the connector 1 , the second screw part 45 is formed to have the screw diameter larger than the first screw part 18 .
- the fastening work is carried out by rotating the connecting member 9 , so that in order to prevent the second insulation member 8 d from being rotated around the shaft 9 a of the connecting member 9 in accordance with the rotation of the connecting member 9 , the second insulation member 8 d is installed so as to be able to move only in an axis direction of the connecting member 9 .
- the rotation of the second insulation member 8 d is prevented by that the second insulation member 8 d is formed so as to have a size that fits snugly the inside of the first terminal housing 5 , or a housing space in the first terminal housing 5 is formed so as to have a size that fits snugly the second insulation member 8 d .
- first insulation members 8 a to 8 c are integrally fixed to the first connecting terminals 4 a to 4 c held by the resin compact 10 and they are not be rotated in accordance with the rotation of the connecting member 9 , so that any countermeasure is not needed.
- the first terminal housing 5 is formed of a hollow tubular body 20 having a cross-section of nearly rectangular shape.
- An outer peripheral part in one end side ( FIG. 4 shows as a right side) of the tubular body 20 fitted to the second terminal housing 7 is formed so as to have a taper shape, in view of the fitting capabilities to the second connector part 3 .
- a terminal housing waterproof structure 21 for sealing between the first connector part 2 and the second connector part 3 is formed in the outer peripheral part in one end side of the tubular body 20 .
- FIG. 4 shows as a left side
- the resin compact 10 in which each of the first connecting terminals 4 a to 4 c is aligned and held is housed.
- a flange 24 (mounting holes are not shown) for fixing the first connector part 2 to a case body such as a device, for example, a shield case of motor is formed.
- a packing or the like for sealing between the case body such as a device and the first connector part 2 can be installed.
- composition of the flange 24 is not base on the promise that the first connector part 2 is fixed to the case body such as a device, but the flange 24 can be installed in the second connector part 3 or it can be installed in both of the first connector part 2 and the second connector part 3 .
- both of the first connector part 2 and the second connector part 3 can be free without being fixed to the case body such as a device.
- the flange 24 is effective in enhancing radiation properties. Namely, due to forming the flange 24 , the surface area of the first terminal housing 5 can be increased, and when heat generated in the first connector part 2 (for example, heat generated at each contact) is dissipated exteriorly via the first terminal housing 5 , the radiation properties can be enhanced.
- a connecting member insertion hole 26 into which the connecting member 9 is inserted is formed in the upper portion ( FIG. 4 shows as the upper side) of the tubular body 20 .
- the connecting member insertion hole 26 is formed so as to have a tubular shape and the lower end portion ( FIG. 4 shows as a lower side) of the tubular shape is folded interiorly. A peripheral edge part of a lower surface of the head 9 b of the connecting member 9 contacts the folded part so that stroke of the connecting member 9 can be controlled.
- the tubular body 20 is formed of metal such as aluminum having a high electric conductivity, a high heat conductivity and a light weight in view of shield performance, radiation properties and reduction in weight, but it can be formed of a resin or the like.
- the first terminal housing 5 is formed of a nonconductive resin
- the second insulation member 8 d and the first terminal housing 5 can be integrally formed with the nonconductive resin.
- the tubular body 20 is formed of aluminum. As described above, the tubular body 20 is formed of aluminum so that an advantage that when the connecting member 9 is screwed to the threaded screw hole 19 , it can be fastened more firmly in comparison with a case that the tubular body 20 is formed of an insulating resin can be obtained.
- the second connector part 3 includes a second terminal housing 7 in which a plurality of (three) second connecting terminals (female terminals) 6 a to 6 c are housed in alignment with each other. Further, here, a connector part having the female terminals is called as the second connector part 3 .
- the second terminal housing 7 can be any of male (a male terminal housing) and female (a female terminal housing) as a terminal housing.
- Cables 27 a to 27 c extending from an inverter side are connected to each of one end sides of the second connecting terminals 6 a to 6 c .
- Each of the cables 27 a to 27 c is electrically connected to each of the first connecting terminals 4 a to 4 c via the second connecting terminals 6 a to 6 c , so that electricity of voltage and/or current corresponding to each of the first connecting terminals 4 a to 4 c is transmitted.
- Each of the cables 27 a to 27 c includes a conducting body 28 and an insulating layer 29 formed on an outer periphery of the conducting body 28 .
- the conducting body 28 having a surface area of 20 square mm is used.
- Each of the cables 27 a to 27 c is held by a cable holding member 30 having a multiple tubular shape, namely a shape that a plurality of tubes are connected to each other, so as to be located apart at certain intervals in alignment with each other.
- a cable holding member 30 By the cable holding member 30 , when the first connector part 2 and the second connector part 3 are fitted to each other, each of the second connecting terminals 6 a to 6 c is positioned and held so as to be located below each of the first connecting terminals 4 a to 4 c that faces each of the second connecting terminals 6 a to 6 c so as to form a pair with each other (namely, that is an object to be connected).
- the cable holding member 30 is formed of a nonconductive resin or the like in order to insulate each of the second connecting terminals 6 a to 6 c from each other and prevent it from short-circuiting.
- the cable holding member 30 even if each of the cables 27 a to 27 c connected to each of the second connecting terminals 6 a to 6 c is excellent in flexibility, each of the second connecting terminals 6 a to 6 c can be held at a predetermined position. Namely, in the embodiment, a cable excellent in flexibility can be used as the cables 27 a to 27 c , so that degree of freedom of wiring when the cables 27 a to 27 c are laid can be increased.
- the cable holding member 30 carries out the positioning of the second connecting terminals 6 a to 6 c so as to hold the second connecting terminals 6 a to 6 c at a predetermined position by holding the cables 27 a to 27 c , particularly by holding end portion sides of the cables 27 a to 27 c that are adjacent to second connecting terminals 6 a to 6 c , but the positioning of the second connecting terminals 6 a to 6 c can be also carried out by holding the cables 27 a to 27 c and simultaneously holding second connecting terminals 6 a to 6 c directly.
- a bonding terminal holding member that does not hold the cables 27 a to 27 c , but holds the second connecting terminals 6 a to 6 c directly can be also used instead of the cable holding member 30 .
- the cables 27 a to 27 c is formed of an flexible material so that the forward end sides of the second connecting terminals 6 a to 6 c can be formed to have a bendability to the second terminal housing 7 . Due to the above-mentioned composition, in the first connector part 2 , the first connecting terminals 4 a to 4 c are deformed by the pressing of the connecting member 9 and even if positions of the parts into which the second connecting terminals 6 a to 6 c are inserted are somewhat changed, a flexible response can be ensured.
- a braided shield 31 for enhancing a shield performance is wrapped around the parts of the cables 27 a to 27 c that are pulled out of the second terminal housing 7 .
- the braided shield 31 contacts a tubular shield body 41 described below and is electrically connected (has identical potentials (GND)) to the first terminal housing 5 via the tubular shield body 41 .
- the braided shield 31 is not shown in FIGS. 1 and 2 for the purpose of simplification.
- each of the second connecting terminals 6 a to 6 c includes a swaging part 32 for swaging the conductive body 28 exposed from the forward end parts of the cables 27 a to 27 c and a U-shaped contact 33 integrally formed with the swaging part 32 .
- a tapered part 34 is formed in the forward end part of the U-shaped contact 33 for the purpose of enhancing insertion properties.
- each of the cables 27 a to 27 c is formed so as to be aligned and held as tightly as possible. Consequently, as shown in FIG. 8 , a body part 35 of the second connecting terminal 6 b to be connected to the cable 27 b that is arranged in the center at the alignment is bent, so that the second connecting terminals 6 a to 6 c can be arranged so as to be located apart at the same intervals.
- each of the second connecting terminals 6 a to 6 c is formed of metal such as silver, copper, aluminum having a high electric conductivity for the purpose of reducing transmission loss at the connector 1 or the like.
- each of the second connecting terminals 6 a to 6 c has some flexibility.
- the second terminal housing 7 is formed of a hollow tubular body 36 having a cross-section of nearly rectangular shape. Since the first terminal housing 5 is fitted in the second terminal housing 7 , an inner peripheral part in one end side ( FIG. 6 shows as a left side) of the tubular body 36 fitted to the first terminal housing 5 is formed so as to have a taper shape, in view of the fitting capabilities to the first terminal housing 5 .
- a composition that the second terminal housing 7 is fitted in the first terminal housing 5 can be also adopted.
- an inner peripheral part in one end side of the tubular body 20 constituting the first terminal housing 5 is formed so as to have a taper shape
- an outer peripheral part in one end side of the tubular body 36 constituting the second terminal housing 7 is formed so as to have a taper shape
- the terminal housing waterproof structure 21 is formed on an outer peripheral part in one end side of the tubular body 36 .
- the cable holding member 30 for aligning and holding each of the cables 27 a to 27 c is housed in another end side ( FIG. 6 shows as a right side) of the tubular body 36 .
- a packing less air-tight part 37 is formed in a cable insertion side of the cable holding member 30 so as to prevent water from entering into the second terminal housing 7 through the cables 27 a to 27 c .
- a packing 38 that contacts the inner peripheral surface of the first terminal housing 5 is formed on the outer peripheral part of the cable holding member 30 .
- the connector 1 is formed so as to have a double waterproof structure that includes the packing 23 of the terminal housing waterproof structure 21 and the packing 38 formed on the outer peripheral part of the cable holding member 30 .
- the outer periphery of another side of the tubular body 36 out of which the cables 27 a to 27 c are pulled is covered with a rubber boot 39 so as to prevent water from entering into the tubular body 36 .
- the rubber boot 39 is not shown in FIGS. 1 and 2 for the purpose of simplification.
- a connecting member operation hole 40 is formed in the upper portion ( FIG. 6 shows as an upper side) of the tubular body 36 , the hole 40 being used for operating the connecting member 9 installed in the first connector part 2 when the second connector part 3 and the first connector part 2 are fitted to each other.
- the connecting member operation hole 40 also functions as a through hole for allowing the connecting member 9 to be inserted and removed into (from) the first terminal housing 5 after the first terminal housing 5 and the second terminal housing 7 are fitted to each other in addition to the above-mentioned function. Due to the function as the through hole, an assembly process of the connector 1 can be carried out easily.
- the tubular body 36 is formed of metal such as aluminum having a high electric conductivity, a high heat conductivity and a light weight in view of shield performance, radiation properties and reduction in weight of the connector 1 , but it can be formed of a resin or the like.
- the tubular body 36 is formed of a nonconductive resin, consequently, a tubular shield body 41 formed of aluminum is installed on an inner peripheral surface of another end side of the tubular body 36 .
- the tubular shield body 41 has a contact part 42 for contacting an outer periphery of the first terminal housing 5 formed of aluminum when the first connector part 2 and the second connector part 3 are fitted to each other, and is thermally and electrically connected to the first terminal housing 5 via the contact part 42 . Due to this, shield performance and radiation properties can be enhanced. In particular, with regard to radiation properties, remarkable improvement is expected due to transferring heat aggressively to a side of the first terminal housing 5 excellent in radiation properties.
- each of the second connecting terminals 6 a to 6 c is inserted between each of the first connecting terminals 4 a to 4 c with which each of the second connecting terminals 6 a to 6 c forms a pair and each of the first insulation members 8 a to 8 c .
- each one surface of a plurality of the first connecting terminals 4 a to 4 c and each one surface of a plurality of the second connecting terminals 6 a to 6 c face each other so that they form a pair with each other, and the first connecting terminals 4 a to 4 c , the second connecting terminals 6 a to 6 c and the insulation members 8 a to 8 d are alternately arranged.
- each of the insulation members 8 a to 8 c is fixed to the forward end side of the first connecting terminals 4 a to 4 c that are held in alignment with each other so as to be located apart at certain intervals, so that intervals among the first insulation members 8 a to 8 c can be retained without separately installing a retention jig for retaining intervals among the first insulation members 8 a to 8 c . Due to this, each of the second connecting terminals 6 a to 6 c can be easily inserted between each of the first connecting terminals 4 a to 4 c with which each of the second connecting terminals 6 a to 6 c forms a pair and the insulation members 8 a to 8 d .
- the contact of the first connecting terminal 4 a (or 4 b ) and the second connecting terminal 6 a (or 6 b ) is sandwiched between the first insulation member 8 a (or 8 b ) fixed to the first connecting terminal 4 a (or 4 b ) constituting the contact and the first insulation member 8 b (or 8 c ) fixed to the first connecting terminal 4 b (or 4 c ) constituting the other contact.
- the contact of the first connecting terminal 4 c and the second connecting terminal 6 c is sandwiched between the first insulation member 8 c fixed to the first connecting terminal 4 c constituting the contact and the second insulation member 8 d fixed to the inner surface of the first terminal housing 5 .
- each of the contacts is pressed so as to be sandwiched by any two of the insulation members 8 a to 8 d , each of the contacts is contacted in an insulated condition from each other, and each of the first connecting terminals 4 a to 4 c and each of the second connecting terminals 6 a to 6 c somewhat bend by the pressing of the insulation members 8 a to 8 d and contact each other in a wide area. Due to this, a connector particularly effective for vehicles in which vibration is easily generated can be realized.
- the contacts are pressed in accordance with the fastening of the bolt, so that a pace of fastening the bolt is synchronized with a pace of pressing the contacts, and when a predetermined pressing force is tried to be acquired so as to fix the contacts firmly, a predetermined fastening distance, namely a stroke distance is needed.
- the connecting member 9 is fastened so that a pressing force due to the elastic member 15 and simultaneously a pressing force due to the second insulation member 8 d are applied to the first insulation members 8 a to 8 c , and pressing forces in an opposite direction to each other are applied to the first insulation members 8 a to 8 c so as to hold the first insulation members 8 a to 8 c from opposite sides ( FIG. 10 shows as upper and lower positions). Consequently, even if a stroke distance of the connecting member 9 is short, a predetermined pressing force for fixing the contacts firmly can be obtained. In addition, the number of rotations of the connecting member 9 until a predetermined pressing force is obtained can be reduced.
- the connector 1 of the embodiment is constructed such that it includes the first screw part 18 and the second screw part 45 having a larger screw pitch than the first screw part 18 and, when the first screw part 18 is screwed into the threaded screw hole 19 of the first terminal housing 5 , a pressing force can be provided from two directions so as to sandwich each contact between the head 9 b (i.e., the elastic member 15 ) of the connecting member 9 and the second insulation member 8 d . Therefore, even when the stroke distance is shorter than before, a pressing force sufficient to fix the contacts can be obtained. Thus, the stroke distance of the connecting member 9 can be shortened and the dimension in the overlapping direction (i.e., in the stacking direction) can be thereby reduced, so that the connector 1 can be further downsized.
- the stroke distance of the connecting member 9 can be set to zero by adopting a composition that a bearing hole instead of the threaded screw hole 19 of the connecting member 9 is formed in the first terminal housing 5 without forming the first screw part 18 in the forward end of the connecting member 9 so that the connecting member 9 spins in the first terminal housing 5 , but in this case, only the pressing force due to the second insulation member 8 d is applied, so that a sufficient pressing force can not be obtained, differently from the above-mentioned embodiment.
- a power line of three-phase alternating current is assumed, but according to the technical idea of the invention, a composition that a plurality of power lines different from each other in applications such as a power line of three-phase alternating current used for a connection between a motor and an inverter, a power line of two-phase direct current used for an air conditioner in a connector for vehicles are collectively connected to each other can be also adopted. Due to this composition, power lines for a plurality of applications can be collectively connected to each other by one connector, so that it is not necessary to prepare different connectors for the respective applications and it can contribute to space saving and cost reduction.
- each of the first connecting terminals 4 a to 4 c and each of the second connecting terminals 6 a to 6 c contact to each other so as to be in surface contact with each other, but a composition that convex portions are formed in each surface of the first connecting terminals 4 a to 4 c that is a surface located at a side of the contacts and contacts each of the second connecting terminals 6 a to 6 c , and the U-shaped contacts 33 of the second connecting terminals 6 a to 6 are fitted to the convex portions can be also adopted. Due to this composition, a bonding force between each of the first connecting terminals 4 a to 4 c and each of the second connecting terminals 6 a to 6 c can be further stabilized. Namely, this composition is particularly effective in vibration perpendicular to the connecting member 9 .
- a composition that terminal surfaces of each of the first connecting terminals 4 a to 4 c and each of the second connecting terminals 6 a to 6 c are roughened by a knurling process or the like so as to increase a friction force and allow the terminals to hardly move with respect to each other, so that the fixing at each contact can be strengthened can be also adopted.
- the U-shaped contacts 33 of the second connecting terminals 6 a to 6 are formed so as to respectively have a forward end part that is branched to two parts having a length equal to each other, but a J-shaped contact in which one of the two parts is formed so as to be longer than another can be also used.
- the contacts so as to have the J-shape, the second connector part 3 can be inserted into the shaft 9 a of the connecting member 9 , even if it is inserted from an oblique direction to longitudinal direction of the cable.
- a composition that each of the first connecting terminals 4 a to 4 c and each of the second connecting terminals 6 a to 6 c are contacted in a linear shape is adopted, when viewed from a side of the head 9 b of the connecting member 9 , but the first terminal housing 5 and the second terminal housing 7 can be formed so as to have a composition that each of the first connecting terminals 4 a to 4 c of the first connector part 2 intersects at a right angle and contacts each of the second connecting terminals 6 a to 6 c of the second connector part 3 , when viewed from a side of the head 9 b of the connecting member 9 .
- the first connector part 2 and the second connector part 3 can be fitted to each other in the L-shape.
- a composition that the second terminal housing 7 and the second connecting terminals 6 a to 6 c are located at an oblique position to the first terminal housing 5 and the first connecting terminals 4 a to 4 c can be also adopted.
- the basic teaching of the invention is applied as described above, so that an insertion and removal direction of the second connector part 3 into (from) the first connector part 2 can be diversified. In short, a pull-out direction of the cable from the connector can be adjusted in a desired direction, so that it can contribute to space-saving.
- the connector according to the invention can be used in a case that the cables are connected to each other.
- a cable excellent in flexibility is used as the cables 27 a to 27 c , but a cable that is rigid can be also used.
- the threaded screw hole 19 is formed in a side of the first terminal housing 5 , but a composition that only a through hole is formed instead of the threaded screw hole 19 in the side of the first terminal housing 5 , and the threaded screw hole 19 can be formed in a side of the second terminal housing 7 can be also adopted.
- the threaded screw hole 19 can be also formed in both sides of the first terminal housing 5 and the second terminal housing 7 .
- the threaded screw hole 19 is formed at a location where the threaded screw hole 19 is screwed to the first screw part 18 of the forward end side of the connecting member 9 , but a composition that the first screw part 18 is formed in a side of the head 9 b of the connecting member 9 and the threaded screw hole 19 is formed so as to be screwed to the first screw part 18 formed in the side of the head 9 b can be also adopted.
- the bolt 12 is explained as an example of the connecting member 9 , but it is not intended that the composition of the connecting member 9 is limited to a bolt shape, for example, a composition that a shaft of a connector position assurance (CPA) lever for fixing the fitting between the first connector part 2 and the second connector part 3 is formed as the connecting member 9 and the fitting is fixed by rotating the CPA lever and simultaneously the connecting member 9 is pressed (or fastened) from the head 9 b to the forward end of the shaft 9 a of the connecting member 9 can be also adopted.
- CPA connector position assurance
- a composition that a concave portion to which a hexagon wrench (also called as a hexagon socket screw key) fits is formed on an upper surface of the head 9 b of the bolt 12 as the connecting member 9 is used, and this is based on assuming that a commercially available hexagon wrench is used, but assuming that a specialized tool not commercially available is used, a composition that a concave portion that has a shape corresponding to the specialized tool is formed on the upper surface of the head 9 b of the bolt 12 as the connecting member 9 can be also adopted.
- the connecting member 9 can be disposed to any of nearly horizontal situation and nearly perpendicular situation. Namely, the disposition in use situation is not included in use conditions to be required for the connector according to the invention.
- the first insulation member 8 a adjacent to the head 9 b is pressed by the head 9 b of the connecting member 9 via the elastic member 15 constituting a part of the connecting member 9 , but a composition that the first insulation member 8 a adjacent to the head 9 b is directly pressed by the head 9 b not through the elastic member 15 can be also adopted.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
- The present application is based on Japanese patent application No. 2009-287889 field on Dec. 18, 2009, the entire contents of which are incorporated herein by reference.
- 1. Field of the Invention
- This invention relates to a connection structure, for use in eco-friendly cars, such as hybrid vehicles, electric vehicles and the like, and in particular, for being capable of use for a portion to connect a power harness, which is used for large power transmission.
- 2. Description of the Related Art
- In hybrid vehicles, electric vehicles and the like which have remarkably developed in recent years, a power harness, which is used for large power transmission for connection between devices, has at its one end a connector, which consists of two separate portions: a male connector portion with a male terminal and a first terminal housing accommodating that male terminal, and a female connector portion with a female terminal connected with the male terminal and a second terminal housing accommodating that female terminal (See, e.g., JP-A-2009-70754)
- In recent years, such eco-friendly cars have been designed to reduce the weights of all parts thereof, to enhance the energy saving performance of the cars. As one effective means to reduce the weights of parts of the cars, it has been proposed to reduce the sizes of the parts.
- For example, a technique as described below, which has been disclosed by JP-B-4037199, is known in the art.
- JP-B-4037199 discloses an electrical connection structure for a vehicle, which is for connecting multiphase connecting terminals of a conductive member drawn out from a motor for driving the vehicle, and multiphase connecting terminals of a power line cable drawn out from an inverter for driving the motor. The technique used in the electrical connection structure disclosed JP-B-4037199 is as follows: Each phase connecting terminal of the conductive member and each corresponding phase connecting terminal of the power line cable are overlapped, and isolating members are disposed on opposite surfaces to the overlapped surfaces of the connecting terminals, respectively, and these overlapped connecting terminals and isolating members are collectively fastened in an overlapping direction with a single bolt provided in a position to penetrate these overlapped connecting terminals and isolating members.
- In other words, in the technique used in the electrical connection structure disclosed by JP-B-4037199, the single bolt is tightened in the overlapping direction (or stacking direction), to collectively hold the multiplicity of contacts between the connecting terminals, which are the overlapped surfaces of the connecting terminals, and thereby fix the connecting terminals at the contacts therebetween, for electrical connections between the connecting terminals, respectively. The construction disclosed by JP-B-4037199 is effective in easily ensuring size reduction, compared to a technique disclosed by JP-A-2009-070754.
- However, the technique of JP-B-4037199 may have the following problem. Since a pace of fastening the bolt is synchronized with a pace of pressing the contacts (the contacts being pressed with strength corresponding to the fastening distance of the bolt), a predetermined fastening distance is needed to get a predetermined pressing force and thus may be an obstacle to the downsizing of the connector.
- Thus, the inventors have contemplated a reduction in dimension in the overlapping direction (or the stacking direction) in order to further downsize the connector.
- It is an object of the invention to provide a connector that includes a connection structure with plural first connecting terminals, plural second connecting terminals and plural insulation plates arranged in a stacked state, and a connecting member adapted to be forced in the stacking direction to collectively fix the plural first connecting terminals and the plural second connecting terminals at contacts for electrical connections therebetween, ant that can be reduced in dimension in the stacking direction.
- (1) According to one embodiment of the invention, a connector comprises:
- a first terminal housing with a plurality of first connecting terminals aligned and accommodated therein;
- a second terminal housing with a plurality of second connecting terminals aligned and accommodated therein;
- a plurality of insulation members aligned and accommodated in the first terminal housing, wherein when the first terminal housing and the second terminal housing are fitted to each other, the plurality of first connecting terminals and the plurality of second connecting terminals face each other to form pairs, respectively, and a stacked state is exhibited such that pairs of the first connecting terminals and the second connecting terminals are alternately interleaved with the plurality of insulation members;
- a connecting member comprising a head and a shaft connected to the head, the shaft penetrating contacts between the plurality of first connecting terminals and the plurality of second connecting terminals and the plurality of insulation members, the head pressing an adjacent insulation member, to thereby collectively fix the plurality of first connecting terminals and the plurality of second connecting terminals at the contacts for electrical connections therebetween, at least a portion of the connecting member, which penetrates the contacts, being comprised of a nonconductive material;
- wherein the shaft and/or the head comprises a first screw part to screw the connecting member into the first terminal housing and/or the second terminal housing,
- the shaft comprises a second screw part to screw into an insulation member of the plurality of the insulation members at a forward end in an insertion direction of the connecting member, the second screw part comprising a screw pitch greater than the first screw part, and
- when the first terminal housing and the second terminal housing are fitted to each other and then tightened by the first screw part of the connecting member and the insulation member screwed into by the second screw part is tightened toward the head by the second screw part, the plurality of first connecting terminals and the plurality of the second connecting terminals are collectively fixed and electrically connected at the contact.
- In the above embodiment (1) of the invention, the following modifications and changes can be made.
- (i) The second screw part comprises a screw diameter greater than the first screw part.
- (ii) The insulation member screwed into by the shaft is formed so as not to rotate around the shaft when the connecting member rotates, and
- the other insulation members except the insulation member screwed into by the shaft are each integrally fixed to the first connecting terminals adjacent thereto.
- (iii) The connector further comprises:
- an elastic member disposed between the head and the insulation member directly under the head.
- According to one embodiment of the invention, a connector is constructed such that it includes a first screw part and a second screw part having a larger screw pitch than the first screw part and, when the first screw part is screwed into a threaded screw hole of a first terminal housing, a pressing force can be provided from two directions so as to sandwich each contact between a head (i.e., an elastic member for pressing the head) of a connecting member and a second insulation member. Therefore, even when the stroke distance is shorter than before, a pressing force sufficient to fix the contacts can be obtained. Thus, the stroke distance of the connecting member can be shortened and the dimension in the overlapping direction (i.e., in the stacking direction) can be thereby reduced, so that the connector can be further downsized.
- The preferred embodiments according to the invention will be explained below referring to the drawings, wherein:
-
FIG. 1 is a perspective view schematically showing a first connector part and a second connector part that constitute a connector according to one embodiment of the invention; -
FIG. 2 is a perspective view schematically showing the connector after the first connector part and the second connector part are fitted to each other; -
FIG. 3 is a cross-sectional view schematically showing the connector after the first connector part and the second connector part are fitted to each other; -
FIG. 4 is a cross-sectional view schematically showing the first connector part; -
FIG. 5A is a side view schematically showing a first connecting terminal; -
FIG. 5B is a bottom view schematically showing a first connecting terminal; -
FIG. 6 is a cross-sectional view schematically showing the second connector part; -
FIG. 7A is a side view schematically showing a second connecting terminal; -
FIG. 7 B is a bottom view schematically showing a second connecting terminal; -
FIG. 8A is a side view schematically showing a second connecting terminal; -
FIG. 8 B is a bottom view schematically showing a second connecting terminal; -
FIG. 9 is a perspective view schematically showing the connector before the first connector part and the second connector part are fitted to each other; and -
FIG. 10 is an enlarged explanatory view of the essential parts of the connection between the first connecting terminals and the second connecting terminals that uses the connector shown inFIG. 1 . - The preferred embodiments according to the invention will be explained below referring to the drawings.
-
FIG. 1 is a perspective view schematically showing a first connector part and a second connector part that constitute an connector according to one embodiment of the invention,FIG. 2 is a perspective view schematically showing the connector after the first connector part and the second connector part are fitted to each other, andFIG. 3 is a cross-sectional view schematically showing the connector after the first connector part and the second connector part are fitted to each other. - As shown in
FIGS. 1 to 3 , aconnector 1 according to the embodiment includes afirst connector part 2 and asecond connector part 3 and is used for collectively connecting a plurality of power-supply lines by allowing theconnector parts - More particularly, the
connector 1 includes thefirst connector part 2 having a firstterminal housing 5 in which a plurality of (three) first connecting terminals (male terminals) 4 a to 4 c are housed in alignment with each other, thesecond connector part 3 having a secondterminal housing 7 in which a plurality of (three) second connecting terminals (female terminals) 6 a to 6 c are housed in alignment with each other and a plurality ofinsulation members 8 a to 8 d housed in the firstterminal housing 5 in alignment with each other, installed so as to sandwich each of a plurality of the first connectingterminals 4 a to 4 c, and used for insulating among the first connectingterminals 4 a to 4 c, and in theconnector 1, when the firstterminal housing 5 of thefirst connector part 2 and the secondterminal housing 7 of thesecond connector part 3 are fitted to each other, each one surface of a plurality of the first connectingterminals 4 a to 4 c and each one surface of a plurality of the second connectingterminals 6 a to 6 c face each other so that they form a pair with each other (each pair of the first connectingterminal 4 a and the second connectingterminal 6 a, the first connectingterminal 4 b and the second connectingterminal 6 b, and the first connectingterminal 4 c and the second connectingterminal 6 c), and each of a plurality of theinsulation members 8 a to 8 d is arranged so as to sandwich each of a plurality of the bonding terminal pairs comprising a plurality of the first connectingterminals 4 a to 4 c and a plurality of the second connectingterminals 6 a to 6 c that face each other, so that a stacked condition is formed. - The
connector 1 is used for, for example, connection between a vehicle drive motor and an inverter which drives the motor. - More particularly, the first terminal housing 5 (
FIG. 1 shows as a part located in a left side) of thefirst connector part 2 is fitted to a shield case of the motor, and a portion of the first connectingterminals 4 a to 4 c exposed from thefirst terminal housing 5 is connected to each terminal in a terminal block installed in the shield case of the motor. Thesecond connector part 3 that electrically connects to the inverter is fitted to thefirst connector part 2, so that the motor and the inverter are connected to each other. In the above, a case of connection in the motor side has been explained, but a case of connection in the inverter side is similar to the case of the motor side. - Hereinafter, each composition of the
first connector part 2 and thesecond connector part 3 will be explained in detail. - As shown in
FIG. 4 , thefirst connector part 2 internally holds three first connectingterminals 4 a to 4 c located apart at certain intervals in alignment with each other, and has the firstterminal housing 5 in which three first connectingterminals 4 a to 4 c are housed in alignment with each other, a plurality ofinsulation members 8 a to 8 d having a nearly rectangular parallelepiped shape housed in the firstterminal housing 5 in alignment with each other, and a connecting member 9 (a passing through type connecting member) that has ahead 9 b and ashaft 9 a connected to thehead 9 b, collectively fixes and electrically connects a plurality of the first connectingterminals 4 a to 4 c and a plurality of the second connectingterminals 6 a to 6 c at each contact by allowing theshaft 9 a to pass through each contact of a plurality of the first connectingterminals 4 a to 4 c and a plurality of the second connectingterminals 6 a to 6 c and a plurality of theinsulation members 8 a to 8 d and pressing theinsulation members 8 a to 8 d adjacent thereto by thehead 9 b and is formed of a nonconductive material at least in a part that passes through the respective contacts. - Further, the first
terminal housing 5 can be any one of a male type one (a male side terminal housing) and a female type one (a female side terminal housing) as a terminal housing. Here, as an example, a case that the firstterminal housing 5 is a male side terminal housing will be explained. - The first connecting
terminals 4 a to 4 c are respectively a plate-like terminal, are formed of a nonconductive resin such as polyphenylene sulfide (PPS) resin, polyphthalamide (PPA) resin, polyamide (PA) resin, polybutylene terephthalate (PBT) resin, epoxy based resin, and are held in a resin compact 10 that is a part of the firstterminal housing 5 so as to be located apart at certain intervals in alignment with each other. A method of allowing the resin compact 10 to hold the first connectingterminals 4 a to 4 c includes, for example, a method of inserting the first connectingterminals 4 a to 4 c into the resin at the time of molding theresin compact 10 and then hardening the resin so as to allow the resin compact 10 to hold the first connectingterminals 4 a to 4 c and a method of pressing the first connectingterminals 4 a to 4 c into the resin compact 10 that is preliminarily molded so as to allow the resin compact 10 to hold the first connectingterminals 4 a to 4 c. - In addition, each of the first connecting
terminals 4 a to 4 c is integrally fixed to theinsulation members 8 a to 8 c that is arranged in the other surface (a surface opposite to the surface to be bonded to the second connectingterminals 6 a to 6 c) side adjacently. Namely, as mentioned above, theresin compact 10 holds the first connectingterminals 4 a to 4 c so as to be located apart at certain intervals in alignment with each other, but theinsulation members 8 a to 8 c are integrally fixed to forward end side of the respective first connectingterminals 4 a to 4 c, so that as a result, theinsulation members 8 a to 8 c are also located apart at certain intervals in alignment with each other. Due to this composition, insulation properties among each contacts and insertion properties of the second connectingterminals 6 a to 6 c at the fitting can be ensured. - Electricity of different voltage and/or different current transmits to each of the first connecting
terminals 4 a to 4 c. For example, in the embodiment, a power line of three-phase alternating current used for a connection between a motor and an inverter is assumed, and an alternating current having different phases by 120 degrees is transmitted to each of the first connectingterminals 4 a to 4 c. For the purpose of transmission loss reduction at theconnector 1 and the like, it is preferable that each of the first connectingterminals 4 a to 4 c is formed of metal having high electric conductivity such as silver, copper, aluminum. In addition, each of the first connectingterminals 4 a to 4 c has a certain degree of flexibility. - A plurality of the
insulation members 8 a to 8 d include a plurality of thefirst insulation members 8 a to 8 c housed in the firstterminal housing 5 in alignment with each other and integrally fixed to each of the other surfaces (surfaces opposite to the surfaces to be bonded to the second connectingterminals 6 a to 6 c) of the first connectingterminals 4 a to 4 c, and thesecond insulation member 8 d housed in the firstterminal housing 5 and disposed so as to face the other surface (a surface opposite to the surface to be bonded to the first connectingterminal 4 c) of the second connectingterminal 6 c that locates at the outermost position when a plurality of the first connectingterminals 4 a to 4 c and a plurality of the second connecting terminal 6 a to 6 c are stacked. - A plurality of the
insulation members 8 a to 8 d are fixed in such a position that they project from the forward ends of the first connectingterminals 4 a to 4 c. Each of theinsulation members 8 a to 8 d are chamfered at each of the corners located at the side into (from) which the second connectingterminals 6 a to 6 c are inserted (removed). In addition, as shown inFIGS. 5A and 5B ,fitting grooves 11 are formed in thefirst insulation member 8 a to 8 c, so as to be fitted by the first connectingterminals 4 a to 4 c as objects to be fixed. The first connectingterminals 4 a to 4 c as objects to be fixed are fitted and integrally fixed to thefitting grooves 11. Due to this, difference in level between thefirst insulation member 8 a to 8 c and the first connectingterminals 4 a to 4 c are eliminated, and a plurality of the lower surfaces (surfaces shown on the lower side in the drawings) of thefirst insulation members 8 a to 8 c become in flush with the lower surfaces (surfaces shown on the lower side in the drawings) of the first connectingterminals 4 a to 4 c. Due to these compositions, insertion and removal properties of the second connectingterminals 6 a to 6 c to the first connecting terminal 4 a to 4 c when thefirst connector part 2 and thesecond connector part 3 are fitted to each other can be enhanced. Further, inFIG. 5A , thefirst insulation member 8 a is shown by simplifying the structure thereof and thefirst insulation members 8 a to 8 c are shown in the same fashion. - In each of the
insulation members 8 a to 8 d, throughholes 43 which the connectingmember 9 passes through are formed, and in the throughhole 43 of theinsulation member 8 d, afemale screw 44 to which asecond screw part 45 described below is screwed is tapped. - Once again, referring to
FIG. 4 , the connectingmember 9 has ashaft 9 a that passes through a plurality of the bonding terminal pairs including a plurality of the first connectingterminals 4 a to 4 c and a plurality of the second connectingterminals 6 a to 6 c that face each other and is formed so as to be nonconductive at least in a surface that contacts a plurality of the bonding terminal pairs, and ahead 9 b that is integrally formed with theshaft 9 a as a pressing part. - More particularly, the connecting
member 9 includes abolt 12 made of metal such as SUS, iron, copper alloy (for example, a cap bolt) and aninsulation layer 13 formed by that a periphery of theshaft 9 a is coated with a nonconductive resin as a nonconductive material such as polyphenylene sulfide (PPS) resin, polyphthalamide (PPA) resin, polyamide (PA) resin, polybutylene terephthalate (PBT) resin, epoxy based resin. For example, a hexagon socket not shown is formed in thehead 9 b of thebolt 12, and a fastening tool such as an open-end wrench is fitted to the hexagon socket so that thebolt 12 can be rotated and fastened. - Further, as the connecting
member 9, a member that is wholly formed of the nonconductive resin can be used, but it is preferable to use a member having a structure that a periphery of theshaft 9 a of thebolt 12 of metal is covered with theinsulation layer 13 in terms of strength. Namely, the connectingmember 9 is formed so as to have a compromise structure between thebolt 12 of metal and theinsulation layer 13 of the nonconductive resin so that the strength can be enhanced in comparison with a case that the whole of the connectingmember 9 is formed of the nonconductive resin. As the nonconductive resin with which thebolt 12 of metal is coated, it is preferable to use a resin that has a linear coefficient of expansion close to that of the metal constituting thebolt 12 in order to prevent creep. - At the forward end of the
shaft 9 a of the connectingmember 9, afirst screw part 18 for being screwed to the firstterminal housing 5 is formed. In addition, in theshaft 9 a of the connectingmember 9 a, asecond screw part 45 is formed, thesecond screw part 45 being formed for being screwed to afemale screw 44 of the insulation member (particularly, in the embodiment, thesecond insulation member 8 d) that is arranged in the forward end side of the connectingmember 9 in the insertion direction of connectingmember 9, and having a screw pitch larger than thefirst screw part 18. - In a periphery of the
head 9 b of the connectingmember 9, a packing 14 for preventing water from entering into the firstterminal housing 5 is installed. In addition, anelastic member 15 is installed between a lower surface of thehead 9 b of the connectingmember 9 and an upper surface of thefirst insulation member 8 a arranged directly below thehead 9 b, theelastic member 15 being used for applying a predetermined pressing force to thefirst insulation member 8 a. Theelastic member 15 is formed of, for example, a spring of metal such as SUS. Further, in embodiment, theelastic member 15 is positioned as a part of the connectingmember 9. - In an upper surface of the
first insulation member 8 a with which the lower portion of theelastic member 15 contacts, aconcave portion 16 covering (housing) the lower portion of theelastic member 15 is formed, and in a bottom portion of the concave portion 16 (namely, a seat portion with which the lower portion of theelastic member 15 contacts), a receivingmember 17 of metal such as SUS is installed, the receivingmember 17 being used for receiving theelastic member 15 and preventing thefirst insulation member 8 a formed of the nonconductive resin from being damaged. - The receiving
member 17 prevents the damage of thefirst insulation member 8 a by dispersing stress applied to the upper surface of thefirst insulation member 8 a from theelastic member 15. Consequently, it is preferable that a contact area of the receivingmember 17 and thefirst insulation member 8 a is formed so as to be as large as possible. In the embodiment, in order to increase the contact area of the receivingmember 17 and thefirst insulation member 8 a, the receivingmember 17 having a shape that it contacts over the entire bottom surface of theconcave portion 16 is installed. - The connecting
member 9 is inserted into the firstterminal housing 5 from the surface sides of the first connectingterminals 4 a to 4 c to which thefirst insulation members 8 a to 8 c are fixed (FIG. 4 shows as the upper surface sides), and presses them from thehead 9 b of the connectingmember 9 to the forward end of theshaft 9 a (FIG. 4 shows as from the upper portion to the lower portion) by that thefirst screw part 18 located at the forward end of theshaft 9 a is screwed to a threadedscrew hole 19 formed on the inner peripheral surface of the firstterminal housing 5, and collectively fixes and electrically connects a plurality of the first connectingterminals 4 a to 4 c and a plurality of the second connectingterminals 6 a to 6 c at each contact. - As described above, the connecting
member 9 is inserted into the firstterminal housing 5 and then is fastened and fixed by that thefirst screw part 18 is screwed to the threadedscrew hole 19, so that if thefirst screw part 18 has the same screw diameter that thesecond screw part 45 has, due to the fact that thefirst screw part 18 has a different screw pitch from thesecond screw part 45, the connectingmember 9 can not be inserted into the firstterminal housing 5 so as to pass through the first connectingterminals 4 a to 4 c and theinsulation members 8 a to 8 d. Consequently, in theconnector 1, thesecond screw part 45 is formed to have the screw diameter larger than thefirst screw part 18. - In addition, in the
connector 1, the fastening work is carried out by rotating the connectingmember 9, so that in order to prevent thesecond insulation member 8 d from being rotated around theshaft 9 a of the connectingmember 9 in accordance with the rotation of the connectingmember 9, thesecond insulation member 8 d is installed so as to be able to move only in an axis direction of the connectingmember 9. In the embodiment, the rotation of thesecond insulation member 8 d is prevented by that thesecond insulation member 8 d is formed so as to have a size that fits snugly the inside of the firstterminal housing 5, or a housing space in the firstterminal housing 5 is formed so as to have a size that fits snugly thesecond insulation member 8 d. Further, thefirst insulation members 8 a to 8 c are integrally fixed to the first connectingterminals 4 a to 4 c held by theresin compact 10 and they are not be rotated in accordance with the rotation of the connectingmember 9, so that any countermeasure is not needed. - The first
terminal housing 5 is formed of a hollowtubular body 20 having a cross-section of nearly rectangular shape. An outer peripheral part in one end side (FIG. 4 shows as a right side) of thetubular body 20 fitted to the secondterminal housing 7 is formed so as to have a taper shape, in view of the fitting capabilities to thesecond connector part 3. Also, in the outer peripheral part in one end side of thetubular body 20, a terminal housingwaterproof structure 21 for sealing between thefirst connector part 2 and thesecond connector part 3 is formed. The terminal housingwaterproof structure 21 includes aconcave portion 22 formed in an outer peripheral part in an opening side of thetubular body 20 and a packing 23 such as an n=ring formed in theconcave portion 22. - In another end side (
FIG. 4 shows as a left side) of thetubular body 20, the resin compact 10 in which each of the first connectingterminals 4 a to 4 c is aligned and held is housed. In the outer peripheral part in another end side of thetubular body 20, a flange 24 (mounting holes are not shown) for fixing thefirst connector part 2 to a case body such as a device, for example, a shield case of motor is formed. In aperipheral edge part 25 of theflange 24 for inserting a bolt into the mounting holes and fixing to the case body such as a device, a packing or the like for sealing between the case body such as a device and thefirst connector part 2 can be installed. Further, the composition of theflange 24 is not base on the promise that thefirst connector part 2 is fixed to the case body such as a device, but theflange 24 can be installed in thesecond connector part 3 or it can be installed in both of thefirst connector part 2 and thesecond connector part 3. In addition, both of thefirst connector part 2 and thesecond connector part 3 can be free without being fixed to the case body such as a device. - In addition, the
flange 24 is effective in enhancing radiation properties. Namely, due to forming theflange 24, the surface area of the firstterminal housing 5 can be increased, and when heat generated in the first connector part 2 (for example, heat generated at each contact) is dissipated exteriorly via the firstterminal housing 5, the radiation properties can be enhanced. - In the upper portion (
FIG. 4 shows as the upper side) of thetubular body 20, a connectingmember insertion hole 26 into which the connectingmember 9 is inserted is formed. The connectingmember insertion hole 26 is formed so as to have a tubular shape and the lower end portion (FIG. 4 shows as a lower side) of the tubular shape is folded interiorly. A peripheral edge part of a lower surface of thehead 9 b of the connectingmember 9 contacts the folded part so that stroke of the connectingmember 9 can be controlled. - It is preferable that the
tubular body 20 is formed of metal such as aluminum having a high electric conductivity, a high heat conductivity and a light weight in view of shield performance, radiation properties and reduction in weight, but it can be formed of a resin or the like. In case that the firstterminal housing 5 is formed of a nonconductive resin, thesecond insulation member 8 d and the firstterminal housing 5 can be integrally formed with the nonconductive resin. Further, in the embodiment, thetubular body 20 is formed of aluminum. As described above, thetubular body 20 is formed of aluminum so that an advantage that when the connectingmember 9 is screwed to the threadedscrew hole 19, it can be fastened more firmly in comparison with a case that thetubular body 20 is formed of an insulating resin can be obtained. - As shown in
FIG. 6 , thesecond connector part 3 includes a secondterminal housing 7 in which a plurality of (three) second connecting terminals (female terminals) 6 a to 6 c are housed in alignment with each other. Further, here, a connector part having the female terminals is called as thesecond connector part 3. Namely, the secondterminal housing 7 can be any of male (a male terminal housing) and female (a female terminal housing) as a terminal housing. Here, corresponding to the fact that the firstterminal housing 5 is a male terminal housing, a case that the secondterminal housing 7 is a female terminal housing is explained. -
Cables 27 a to 27 c extending from an inverter side are connected to each of one end sides of the second connectingterminals 6 a to 6 c. Each of thecables 27 a to 27 c is electrically connected to each of the first connectingterminals 4 a to 4 c via the second connectingterminals 6 a to 6 c, so that electricity of voltage and/or current corresponding to each of the first connectingterminals 4 a to 4 c is transmitted. Each of thecables 27 a to 27 c includes a conductingbody 28 and an insulatinglayer 29 formed on an outer periphery of the conductingbody 28. In the embodiment, the conductingbody 28 having a surface area of 20 square mm is used. - Each of the
cables 27 a to 27 c is held by acable holding member 30 having a multiple tubular shape, namely a shape that a plurality of tubes are connected to each other, so as to be located apart at certain intervals in alignment with each other. By thecable holding member 30, when thefirst connector part 2 and thesecond connector part 3 are fitted to each other, each of the second connectingterminals 6 a to 6 c is positioned and held so as to be located below each of the first connectingterminals 4 a to 4 c that faces each of the second connectingterminals 6 a to 6 c so as to form a pair with each other (namely, that is an object to be connected). - The
cable holding member 30 is formed of a nonconductive resin or the like in order to insulate each of the second connectingterminals 6 a to 6 c from each other and prevent it from short-circuiting. By thecable holding member 30, even if each of thecables 27 a to 27 c connected to each of the second connectingterminals 6 a to 6 c is excellent in flexibility, each of the second connectingterminals 6 a to 6 c can be held at a predetermined position. Namely, in the embodiment, a cable excellent in flexibility can be used as thecables 27 a to 27 c, so that degree of freedom of wiring when thecables 27 a to 27 c are laid can be increased. - Further, the
cable holding member 30 carries out the positioning of the second connectingterminals 6 a to 6 c so as to hold the second connectingterminals 6 a to 6 c at a predetermined position by holding thecables 27 a to 27 c, particularly by holding end portion sides of thecables 27 a to 27 c that are adjacent to second connectingterminals 6 a to 6 c, but the positioning of the second connectingterminals 6 a to 6 c can be also carried out by holding thecables 27 a to 27 c and simultaneously holding second connectingterminals 6 a to 6 c directly. In addition, a bonding terminal holding member that does not hold thecables 27 a to 27 c, but holds the second connectingterminals 6 a to 6 c directly can be also used instead of thecable holding member 30. - With regard to the
cable holding member 30, in the case of carrying out the positioning by holding thecables 27 a to 27 c instead of holding the second connectingterminals 6 a to 6 c directly, namely in the case of the embodiment, thecables 27 a to 27 c is formed of an flexible material so that the forward end sides of the second connectingterminals 6 a to 6 c can be formed to have a bendability to the secondterminal housing 7. Due to the above-mentioned composition, in thefirst connector part 2, the first connectingterminals 4 a to 4 c are deformed by the pressing of the connectingmember 9 and even if positions of the parts into which the second connectingterminals 6 a to 6 c are inserted are somewhat changed, a flexible response can be ensured. - In addition, a
braided shield 31 for enhancing a shield performance is wrapped around the parts of thecables 27 a to 27 c that are pulled out of the secondterminal housing 7. Thebraided shield 31 contacts atubular shield body 41 described below and is electrically connected (has identical potentials (GND)) to the firstterminal housing 5 via thetubular shield body 41. Further, thebraided shield 31 is not shown inFIGS. 1 and 2 for the purpose of simplification. - As shown in
FIGS. 7 and 8 , each of the second connectingterminals 6 a to 6 c includes aswaging part 32 for swaging theconductive body 28 exposed from the forward end parts of thecables 27 a to 27 c and aU-shaped contact 33 integrally formed with theswaging part 32. Atapered part 34 is formed in the forward end part of theU-shaped contact 33 for the purpose of enhancing insertion properties. When thefirst connector part 2 and thesecond connector part 3 are fitted to each other, theU-shaped contact 33 is inserted so as to sandwich theshaft 9 a of the connectingmember 9. - In the embodiment, in order to reduce the size of the
connector 1, each of thecables 27 a to 27 c is formed so as to be aligned and held as tightly as possible. Consequently, as shown inFIG. 8 , abody part 35 of the second connectingterminal 6 b to be connected to thecable 27 b that is arranged in the center at the alignment is bent, so that the second connectingterminals 6 a to 6 c can be arranged so as to be located apart at the same intervals. - It is preferable that each of the second connecting
terminals 6 a to 6 c is formed of metal such as silver, copper, aluminum having a high electric conductivity for the purpose of reducing transmission loss at theconnector 1 or the like. In addition, each of the second connectingterminals 6 a to 6 c has some flexibility. - Referring to
FIG. 6 again, the secondterminal housing 7 is formed of a hollowtubular body 36 having a cross-section of nearly rectangular shape. Since the firstterminal housing 5 is fitted in the secondterminal housing 7, an inner peripheral part in one end side (FIG. 6 shows as a left side) of thetubular body 36 fitted to the firstterminal housing 5 is formed so as to have a taper shape, in view of the fitting capabilities to the firstterminal housing 5. - Further, adversely, a composition that the second
terminal housing 7 is fitted in the firstterminal housing 5 can be also adopted. In this case, it is preferable that an inner peripheral part in one end side of thetubular body 20 constituting the firstterminal housing 5 is formed so as to have a taper shape, an outer peripheral part in one end side of thetubular body 36 constituting the secondterminal housing 7 is formed so as to have a taper shape, and the terminal housingwaterproof structure 21 is formed on an outer peripheral part in one end side of thetubular body 36. - The
cable holding member 30 for aligning and holding each of thecables 27 a to 27 c is housed in another end side (FIG. 6 shows as a right side) of thetubular body 36. A packing less air-tight part 37 is formed in a cable insertion side of thecable holding member 30 so as to prevent water from entering into the secondterminal housing 7 through thecables 27 a to 27 c. A packing 38 that contacts the inner peripheral surface of the firstterminal housing 5 is formed on the outer peripheral part of thecable holding member 30. Namely, theconnector 1 is formed so as to have a double waterproof structure that includes the packing 23 of the terminal housingwaterproof structure 21 and the packing 38 formed on the outer peripheral part of thecable holding member 30. - In addition to the above, the outer periphery of another side of the
tubular body 36 out of which thecables 27 a to 27 c are pulled is covered with arubber boot 39 so as to prevent water from entering into thetubular body 36. Further, therubber boot 39 is not shown inFIGS. 1 and 2 for the purpose of simplification. - Further, a connecting
member operation hole 40 is formed in the upper portion (FIG. 6 shows as an upper side) of thetubular body 36, thehole 40 being used for operating the connectingmember 9 installed in thefirst connector part 2 when thesecond connector part 3 and thefirst connector part 2 are fitted to each other. The connectingmember operation hole 40 also functions as a through hole for allowing the connectingmember 9 to be inserted and removed into (from) the firstterminal housing 5 after the firstterminal housing 5 and the secondterminal housing 7 are fitted to each other in addition to the above-mentioned function. Due to the function as the through hole, an assembly process of theconnector 1 can be carried out easily. - It is preferable that the
tubular body 36 is formed of metal such as aluminum having a high electric conductivity, a high heat conductivity and a light weight in view of shield performance, radiation properties and reduction in weight of theconnector 1, but it can be formed of a resin or the like. In the embodiment, thetubular body 36 is formed of a nonconductive resin, consequently, atubular shield body 41 formed of aluminum is installed on an inner peripheral surface of another end side of thetubular body 36. - The
tubular shield body 41 has acontact part 42 for contacting an outer periphery of the firstterminal housing 5 formed of aluminum when thefirst connector part 2 and thesecond connector part 3 are fitted to each other, and is thermally and electrically connected to the firstterminal housing 5 via thecontact part 42. Due to this, shield performance and radiation properties can be enhanced. In particular, with regard to radiation properties, remarkable improvement is expected due to transferring heat aggressively to a side of the firstterminal housing 5 excellent in radiation properties. - Next, the connection between the first connecting
terminals 4 a to 4 c and the second connectingterminals 6 a to 6 c by using theconnector 1 according to the embodiment will be explained. - As shown in
FIG. 9 , when thefirst connector part 2 and thesecond connector part 3 are fitted to each other, each of the second connectingterminals 6 a to 6 c is inserted between each of the first connectingterminals 4 a to 4 c with which each of the second connectingterminals 6 a to 6 c forms a pair and each of thefirst insulation members 8 a to 8 c. And, due to the insertion, a stacked condition is formed, that each one surface of a plurality of the first connectingterminals 4 a to 4 c and each one surface of a plurality of the second connectingterminals 6 a to 6 c face each other so that they form a pair with each other, and the first connectingterminals 4 a to 4 c, the second connectingterminals 6 a to 6 c and theinsulation members 8 a to 8 d are alternately arranged. - In this case, in the
first connector part 2, each of theinsulation members 8 a to 8 c is fixed to the forward end side of the first connectingterminals 4 a to 4 c that are held in alignment with each other so as to be located apart at certain intervals, so that intervals among thefirst insulation members 8 a to 8 c can be retained without separately installing a retention jig for retaining intervals among thefirst insulation members 8 a to 8 c. Due to this, each of the second connectingterminals 6 a to 6 c can be easily inserted between each of the first connectingterminals 4 a to 4 c with which each of the second connectingterminals 6 a to 6 c forms a pair and theinsulation members 8 a to 8 d. Namely, insertion and removal properties of the second connectingterminals 6 a to 6 c are not be reduced. In addition, it is not necessary to install the retention jig for retaining intervals among thefirst insulation members 8 a to 8 c, so that it is extremely effective in view of being capable of realizing a further downsizing in comparison with a conventional technique. - In addition, the contact of the first connecting terminal 4 a (or 4 b) and the second connecting terminal 6 a (or 6 b) is sandwiched between the
first insulation member 8 a (or 8 b) fixed to the first connecting terminal 4 a (or 4 b) constituting the contact and thefirst insulation member 8 b (or 8 c) fixed to the first connectingterminal 4 b (or 4 c) constituting the other contact. Similarly, the contact of the first connectingterminal 4 c and the second connectingterminal 6 c is sandwiched between thefirst insulation member 8 c fixed to the first connectingterminal 4 c constituting the contact and thesecond insulation member 8 d fixed to the inner surface of the firstterminal housing 5. - After that, as shown in
FIG. 3 , when the connectingmember 9 is operated through the connectingmember operation hole 40 and thefirst screw part 18 of the connectingmember 9 is screwed to the threadedscrew hole 19 of the firstterminal housing 5 and is fastened, the connectingmember 9 is pushed into a bottom portion of the threadedscrew hole 19 while rotating and simultaneously thefirst insulation member 8 a,first insulation member 8 b, thefirst insulation member 8 c and thesecond insulation member 8 d are pressed by theelastic member 15 in this order. Due to this, each of the contacts is pressed so as to be sandwiched by any two of theinsulation members 8 a to 8 d, each of the contacts is contacted in an insulated condition from each other, and each of the first connectingterminals 4 a to 4 c and each of the second connectingterminals 6 a to 6 c somewhat bend by the pressing of theinsulation members 8 a to 8 d and contact each other in a wide area. Due to this, a connector particularly effective for vehicles in which vibration is easily generated can be realized. - In the case of the conventional technique as shown in JP-B-4037199, the contacts are pressed in accordance with the fastening of the bolt, so that a pace of fastening the bolt is synchronized with a pace of pressing the contacts, and when a predetermined pressing force is tried to be acquired so as to fix the contacts firmly, a predetermined fastening distance, namely a stroke distance is needed.
- On the other hand, in the
connector 1 according to the embodiment, as shown inFIG. 10 , thesecond screw part 45 to be screwed to afemale screw 44 of thesecond insulation member 8 d, thesecond screw part 45 having a screw pitch larger than thefirst screw part 18, is formed in the connectingmember 9, so that at the same time when the connectingmember 9 is fastened, thesecond insulation member 8 d screwed to thesecond screw part 45 is fastened in a side of thehead 9 b at a pace faster than a pace of fastening the connectingmember 9, and thefirst insulation members 8 a to 8 c are sequentially pressed so that thefirst insulation member 8 a contacts the lower end portion folded of the connectingmember insertion hole 26 formed in a tubular shape. - Namely, the connecting
member 9 is fastened so that a pressing force due to theelastic member 15 and simultaneously a pressing force due to thesecond insulation member 8 d are applied to thefirst insulation members 8 a to 8 c, and pressing forces in an opposite direction to each other are applied to thefirst insulation members 8 a to 8 c so as to hold thefirst insulation members 8 a to 8 c from opposite sides (FIG. 10 shows as upper and lower positions). Consequently, even if a stroke distance of the connectingmember 9 is short, a predetermined pressing force for fixing the contacts firmly can be obtained. In addition, the number of rotations of the connectingmember 9 until a predetermined pressing force is obtained can be reduced. - As mentioned above, the
connector 1 of the embodiment is constructed such that it includes thefirst screw part 18 and thesecond screw part 45 having a larger screw pitch than thefirst screw part 18 and, when thefirst screw part 18 is screwed into the threadedscrew hole 19 of the firstterminal housing 5, a pressing force can be provided from two directions so as to sandwich each contact between thehead 9 b (i.e., the elastic member 15) of the connectingmember 9 and thesecond insulation member 8 d. Therefore, even when the stroke distance is shorter than before, a pressing force sufficient to fix the contacts can be obtained. Thus, the stroke distance of the connectingmember 9 can be shortened and the dimension in the overlapping direction (i.e., in the stacking direction) can be thereby reduced, so that theconnector 1 can be further downsized. - In addition, from the viewpoint of shortening the stroke distance of the connecting
member 9, the stroke distance can be set to zero by adopting a composition that a bearing hole instead of the threadedscrew hole 19 of the connectingmember 9 is formed in the firstterminal housing 5 without forming thefirst screw part 18 in the forward end of the connectingmember 9 so that the connectingmember 9 spins in the firstterminal housing 5, but in this case, only the pressing force due to thesecond insulation member 8 d is applied, so that a sufficient pressing force can not be obtained, differently from the above-mentioned embodiment. - Although the invention has been described with respect to the specific embodiments for complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art which fairly fall within the basic teaching herein set forth.
- For example, in the embodiment, a power line of three-phase alternating current is assumed, but according to the technical idea of the invention, a composition that a plurality of power lines different from each other in applications such as a power line of three-phase alternating current used for a connection between a motor and an inverter, a power line of two-phase direct current used for an air conditioner in a connector for vehicles are collectively connected to each other can be also adopted. Due to this composition, power lines for a plurality of applications can be collectively connected to each other by one connector, so that it is not necessary to prepare different connectors for the respective applications and it can contribute to space saving and cost reduction.
- In addition, in the embodiment, each of the first connecting
terminals 4 a to 4 c and each of the second connectingterminals 6 a to 6 c contact to each other so as to be in surface contact with each other, but a composition that convex portions are formed in each surface of the first connectingterminals 4 a to 4 c that is a surface located at a side of the contacts and contacts each of the second connectingterminals 6 a to 6 c, and theU-shaped contacts 33 of the second connectingterminals 6 a to 6 are fitted to the convex portions can be also adopted. Due to this composition, a bonding force between each of the first connectingterminals 4 a to 4 c and each of the second connectingterminals 6 a to 6 c can be further stabilized. Namely, this composition is particularly effective in vibration perpendicular to the connectingmember 9. - In addition, a composition that terminal surfaces of each of the first connecting
terminals 4 a to 4 c and each of the second connectingterminals 6 a to 6 c are roughened by a knurling process or the like so as to increase a friction force and allow the terminals to hardly move with respect to each other, so that the fixing at each contact can be strengthened can be also adopted. - In addition, in the embodiment, the
U-shaped contacts 33 of the second connectingterminals 6 a to 6 are formed so as to respectively have a forward end part that is branched to two parts having a length equal to each other, but a J-shaped contact in which one of the two parts is formed so as to be longer than another can be also used. By forming the contacts so as to have the J-shape, thesecond connector part 3 can be inserted into theshaft 9 a of the connectingmember 9, even if it is inserted from an oblique direction to longitudinal direction of the cable. - In addition, in the embodiment, a composition that each of the first connecting
terminals 4 a to 4 c and each of the second connectingterminals 6 a to 6 c are contacted in a linear shape is adopted, when viewed from a side of thehead 9 b of the connectingmember 9, but the firstterminal housing 5 and the secondterminal housing 7 can be formed so as to have a composition that each of the first connectingterminals 4 a to 4 c of thefirst connector part 2 intersects at a right angle and contacts each of the second connectingterminals 6 a to 6 c of thesecond connector part 3, when viewed from a side of thehead 9 b of the connectingmember 9. Namely, thefirst connector part 2 and thesecond connector part 3 can be fitted to each other in the L-shape. Similarly, a composition that the secondterminal housing 7 and the second connectingterminals 6 a to 6 c are located at an oblique position to the firstterminal housing 5 and the first connectingterminals 4 a to 4 c can be also adopted. The basic teaching of the invention is applied as described above, so that an insertion and removal direction of thesecond connector part 3 into (from) thefirst connector part 2 can be diversified. In short, a pull-out direction of the cable from the connector can be adjusted in a desired direction, so that it can contribute to space-saving. - In addition, in the embodiment, a case that nothing is connected to one end sides of the first connecting
terminals 4 a to 4 c, different from the case of the second connectingterminals 6 a to 6 c is explained, but not limited to this composition. Namely, the connector according to the invention can be used in a case that the cables are connected to each other. - In addition, in the embodiment, a cable excellent in flexibility is used as the
cables 27 a to 27 c, but a cable that is rigid can be also used. - In addition, in the embodiment, the threaded
screw hole 19 is formed in a side of the firstterminal housing 5, but a composition that only a through hole is formed instead of the threadedscrew hole 19 in the side of the firstterminal housing 5, and the threadedscrew hole 19 can be formed in a side of the secondterminal housing 7 can be also adopted. - And, the threaded
screw hole 19 can be also formed in both sides of the firstterminal housing 5 and the secondterminal housing 7. - Also, in the embodiment, the threaded
screw hole 19 is formed at a location where the threadedscrew hole 19 is screwed to thefirst screw part 18 of the forward end side of the connectingmember 9, but a composition that thefirst screw part 18 is formed in a side of thehead 9 b of the connectingmember 9 and the threadedscrew hole 19 is formed so as to be screwed to thefirst screw part 18 formed in the side of thehead 9 b can be also adopted. - In addition, in the embodiment, the
bolt 12 is explained as an example of the connectingmember 9, but it is not intended that the composition of the connectingmember 9 is limited to a bolt shape, for example, a composition that a shaft of a connector position assurance (CPA) lever for fixing the fitting between thefirst connector part 2 and thesecond connector part 3 is formed as the connectingmember 9 and the fitting is fixed by rotating the CPA lever and simultaneously the connectingmember 9 is pressed (or fastened) from thehead 9 b to the forward end of theshaft 9 a of the connectingmember 9 can be also adopted. - In addition, in the embodiment, a composition that a concave portion to which a hexagon wrench (also called as a hexagon socket screw key) fits is formed on an upper surface of the
head 9 b of thebolt 12 as the connectingmember 9 is used, and this is based on assuming that a commercially available hexagon wrench is used, but assuming that a specialized tool not commercially available is used, a composition that a concave portion that has a shape corresponding to the specialized tool is formed on the upper surface of thehead 9 b of thebolt 12 as the connectingmember 9 can be also adopted. - In addition, in the embodiment, with regard to a disposition of the connector in use situation, the connecting
member 9 can be disposed to any of nearly horizontal situation and nearly perpendicular situation. Namely, the disposition in use situation is not included in use conditions to be required for the connector according to the invention. - In addition, in the embodiment, the
first insulation member 8 a adjacent to thehead 9 b is pressed by thehead 9 b of the connectingmember 9 via theelastic member 15 constituting a part of the connectingmember 9, but a composition that thefirst insulation member 8 a adjacent to thehead 9 b is directly pressed by thehead 9 b not through theelastic member 15 can be also adopted.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009287889A JP5318744B2 (en) | 2009-12-18 | 2009-12-18 | connector |
JP2009-287889 | 2009-12-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
US7959470B1 US7959470B1 (en) | 2011-06-14 |
US20110151707A1 true US20110151707A1 (en) | 2011-06-23 |
Family
ID=44121853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/857,964 Expired - Fee Related US7959470B1 (en) | 2009-12-18 | 2010-08-17 | Connector with a connecting memer with a screw portion penetrating the insulators and terminals of two mating terminal housings |
Country Status (3)
Country | Link |
---|---|
US (1) | US7959470B1 (en) |
JP (1) | JP5318744B2 (en) |
CN (1) | CN102104215B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120184125A1 (en) * | 2011-01-13 | 2012-07-19 | Hitachi Cable, Ltd. | Connector |
DE102014215562A1 (en) * | 2014-08-06 | 2016-02-11 | Continental Automotive Gmbh | Method for producing a coupling device and coupling device |
US11112034B2 (en) * | 2019-06-18 | 2021-09-07 | Globalmedia Group, Llc | Cable keeper |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5095446B2 (en) * | 2008-03-05 | 2012-12-12 | 矢崎総業株式会社 | connector |
DE102010001435B4 (en) * | 2010-02-01 | 2011-12-15 | Tyco Electronics Amp Gmbh | socket housing |
JP5293627B2 (en) * | 2010-02-01 | 2013-09-18 | 日立電線株式会社 | connector |
US20110312222A1 (en) * | 2010-06-16 | 2011-12-22 | Tanaka Yokichi J | Multi-electrode holders |
JP5598758B2 (en) * | 2010-08-26 | 2014-10-01 | 日立金属株式会社 | connector |
JP5401671B2 (en) * | 2010-08-26 | 2014-01-29 | 日立金属株式会社 | connector |
JP4905586B1 (en) * | 2010-12-21 | 2012-03-28 | 日立電線株式会社 | connector |
JP5589858B2 (en) * | 2011-01-14 | 2014-09-17 | 日立金属株式会社 | connector |
JP5673492B2 (en) * | 2011-10-31 | 2015-02-18 | 日立金属株式会社 | Connector device |
JP6107376B2 (en) * | 2013-04-24 | 2017-04-05 | 日立金属株式会社 | Connector and wire harness |
US9120389B1 (en) * | 2014-02-08 | 2015-09-01 | Atieva, Inc. | Integrated motor assembly with compliantly mounted power inverter |
US10218116B1 (en) * | 2017-10-03 | 2019-02-26 | Ford Global Technologies, Llc | Locking vehicle electrical connector |
JP7028153B2 (en) * | 2018-12-17 | 2022-03-02 | 住友電装株式会社 | Connector fitting |
TWI704732B (en) * | 2019-11-04 | 2020-09-11 | 大陸商東莞訊滔電子有限公司 | Base of electrical connector and electrical connector thereof |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3504100A (en) * | 1967-08-19 | 1970-03-31 | Furukawa Electric Co Ltd | Pressure connections between overlapping bus bar ends |
US3614297A (en) * | 1968-10-22 | 1971-10-19 | Broadhill Dev Corp | Electrical conduit system |
US6183314B1 (en) * | 1982-08-20 | 2001-02-06 | Sumitomo Wiring Systems, Ltd | Connector manufacturing method and metal mold therefor |
US6361378B1 (en) * | 1999-01-11 | 2002-03-26 | Sumitomo Wiring Systems, Ltd. | Connector with a side retainer |
US6568948B2 (en) * | 2001-03-02 | 2003-05-27 | Sumitomo Wiring Systems, Ltd. | Connector |
US6626702B2 (en) * | 2000-12-28 | 2003-09-30 | Sumitomo Wiring Systems, Ltd. | Connector with movable locking retainer and test method using the same |
US6896560B2 (en) * | 2002-10-30 | 2005-05-24 | Sumitomo Wiring Systems, Ltd. | Connector with retainer having front wall and reinforcement |
US7204726B2 (en) * | 2005-02-23 | 2007-04-17 | Sumitomo Wiring Systems, Ltd. | Electrical connector with a terminal retainer with an intermediate lock |
US7572150B2 (en) * | 2007-07-26 | 2009-08-11 | Sumitomo Wiring Systems, Ltd. | Device connector with mating terminals bolted together |
US7828591B2 (en) * | 2007-11-09 | 2010-11-09 | Sumitomo Wiring Systems, Ltd. | Connector for a device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5243826Y2 (en) * | 1972-05-31 | 1977-10-05 | ||
JP2652744B2 (en) * | 1992-07-08 | 1997-09-10 | 小松ウオール工業株式会社 | Hanging bolt device in moving partition |
JP4037199B2 (en) * | 2002-07-19 | 2008-01-23 | 本田技研工業株式会社 | Electrical connection structure for vehicles |
JP4867875B2 (en) | 2007-09-18 | 2012-02-01 | 日立電線株式会社 | Lever type connector |
-
2009
- 2009-12-18 JP JP2009287889A patent/JP5318744B2/en not_active Expired - Fee Related
-
2010
- 2010-08-17 US US12/857,964 patent/US7959470B1/en not_active Expired - Fee Related
- 2010-10-27 CN CN201010525634.0A patent/CN102104215B/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3504100A (en) * | 1967-08-19 | 1970-03-31 | Furukawa Electric Co Ltd | Pressure connections between overlapping bus bar ends |
US3614297A (en) * | 1968-10-22 | 1971-10-19 | Broadhill Dev Corp | Electrical conduit system |
US6183314B1 (en) * | 1982-08-20 | 2001-02-06 | Sumitomo Wiring Systems, Ltd | Connector manufacturing method and metal mold therefor |
US6361378B1 (en) * | 1999-01-11 | 2002-03-26 | Sumitomo Wiring Systems, Ltd. | Connector with a side retainer |
US6626702B2 (en) * | 2000-12-28 | 2003-09-30 | Sumitomo Wiring Systems, Ltd. | Connector with movable locking retainer and test method using the same |
US6568948B2 (en) * | 2001-03-02 | 2003-05-27 | Sumitomo Wiring Systems, Ltd. | Connector |
US6896560B2 (en) * | 2002-10-30 | 2005-05-24 | Sumitomo Wiring Systems, Ltd. | Connector with retainer having front wall and reinforcement |
US7204726B2 (en) * | 2005-02-23 | 2007-04-17 | Sumitomo Wiring Systems, Ltd. | Electrical connector with a terminal retainer with an intermediate lock |
US7572150B2 (en) * | 2007-07-26 | 2009-08-11 | Sumitomo Wiring Systems, Ltd. | Device connector with mating terminals bolted together |
US7828591B2 (en) * | 2007-11-09 | 2010-11-09 | Sumitomo Wiring Systems, Ltd. | Connector for a device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120184125A1 (en) * | 2011-01-13 | 2012-07-19 | Hitachi Cable, Ltd. | Connector |
US8608498B2 (en) * | 2011-01-13 | 2013-12-17 | Hitachi Cable, Ltd. | Connector |
DE102014215562A1 (en) * | 2014-08-06 | 2016-02-11 | Continental Automotive Gmbh | Method for producing a coupling device and coupling device |
DE102014215562B4 (en) | 2014-08-06 | 2022-05-19 | Vitesco Technologies GmbH | Method of manufacturing a docking device and docking device |
US11112034B2 (en) * | 2019-06-18 | 2021-09-07 | Globalmedia Group, Llc | Cable keeper |
Also Published As
Publication number | Publication date |
---|---|
JP5318744B2 (en) | 2013-10-16 |
JP2011129415A (en) | 2011-06-30 |
CN102104215A (en) | 2011-06-22 |
CN102104215B (en) | 2014-09-10 |
US7959470B1 (en) | 2011-06-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7959470B1 (en) | Connector with a connecting memer with a screw portion penetrating the insulators and terminals of two mating terminal housings | |
US8226429B2 (en) | Connection structure | |
US8123546B2 (en) | Connector for large power transmission | |
US8100708B2 (en) | Connection structure for a vehicle | |
US7985092B2 (en) | Connection structure | |
EP2328239B1 (en) | Connector | |
JP5024398B2 (en) | connector | |
US8123573B2 (en) | Connection structure | |
JP5598758B2 (en) | connector | |
US7980879B2 (en) | Connection structure | |
US8308508B2 (en) | Connector | |
JP5401671B2 (en) | connector | |
US8202116B2 (en) | Connector for being capable of use for a portion to connect a power harness, which is used for large power transmission | |
JP5263141B2 (en) | Connection structure for vehicles | |
JP5308546B2 (en) | connector | |
JP2011146159A (en) | Connection structure | |
JP5229406B2 (en) | Connection structure | |
JP4905607B1 (en) | connector | |
JP5278297B2 (en) | Connection structure | |
JP4905606B1 (en) | connector | |
JP2012048948A (en) | Connector |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HITACHI CABLE, LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:UMETSU, JUN;TAKEHARA, HIDEAKI;FUKUDA, KUNIHIRO;AND OTHERS;REEL/FRAME:024847/0277 Effective date: 20100730 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
CC | Certificate of correction | ||
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20190614 |