JP2012048948A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector of stack structure in which reduction of sealability can be minimized even if terminal housings are tightened each other.SOLUTION: The connector comprises a plurality of insulating members 8a-8c contained in a male side terminal housing 5 while being arranged and fixed, respectively, to the other surfaces of a plurality of first junction terminals 4a-4c, a connection member 9 which fixes the plurality of first junction terminals 4a-4c and a plurality of second junction terminals 6a-6c collectively at respective terminals when an adjoining insulating member 8a is pressed and connects them electrically and also tightens the male side terminal housing 5 to one side surface side of a female side terminal housing 7, an inside wall 48 formed on the inner peripheral surface of the female side terminal housing 7 on the other side surface side to surround from an opening 47 of the male side terminal housing 5 to the inner peripheral surface on the other side surface side, and a seal member 49 which seals between the inside wall 48 and the inner peripheral surface of the male side terminal housing 5 on the other side surface side.

Description

  The present invention relates to a connector that may be used in, for example, an eco-car such as a hybrid vehicle and an electric vehicle, and may be employed in a connecting portion of a power harness used when transmitting a large amount of power.

  In recent years, significant progress has been made, for example, in hybrid vehicles, electric vehicles, etc., when transferring a large amount of power for connecting devices, such as between a motor and an inverter, or between an inverter and a battery. For example, a power harness used in the above-described configuration includes, on one end side thereof, a male connector portion including a male terminal and a male terminal housing for housing the male terminal, a female terminal connected to the male terminal, and the female terminal. A connector having a two-part configuration with a female-side connector portion including a female-side terminal housing is provided (see, for example, Patent Document 1).

  In recent years, such eco-cars have been reduced in weight for all parts for the purpose of improving energy-saving performance. However, one of the effective means for reducing the weight is to reduce the size. I hit it.

  Therefore, as a known technique, for example, there is a technique as disclosed in Patent Document 2.

  The technique disclosed in Patent Document 2 is a vehicle that connects a joint terminal of a plurality of phases of conductive members drawn from a motor for driving a vehicle and a joint terminal of a plurality of phases of a power line cable drawn from an inverter that drives the motor. In the electrical connection structure for use, the joining terminal of each phase of the conductive member and the joining terminal of each phase of the corresponding power line cable are polymerized, and the insulating member is disposed on the surface opposite to the overlapping surface of the joining terminal. In this technique, the joined terminals and insulating members of each polymerized phase are fastened and fixed in the polymerizing direction (also referred to as a laminating direction) by a single bolt provided at a position penetrating them.

  That is, the technique of Patent Document 2 is a connection structure in which a plurality of joint terminals and insulating members are stacked, and by joining a single bolt in the superposition direction, the joint terminals that are the superposition surfaces of the joint terminals are connected to each other. Is a connection structure in which a plurality of contact points are sandwiched together to fix and electrically connect the joining terminals with the contact points. This is effective in that it is easy to reduce the size.

  Furthermore, the technique of Patent Document 2 is a structure that can hold the interval between the insulating members by holding the insulating member that sandwiches the contacts of the joining terminals with a holding jig separately provided. This is effective in terms of insertion / extraction of the junction terminal.

JP 2009-070754 A Japanese Patent No. 4037199

  However, when a technique such as Patent Document 2 is applied to a connector and the terminal housings are to be fastened together with a connecting member in order to reinforce the fitting between the male and female terminal housings, the male terminal housing Is attracted to one side of the female terminal housing, there is a possibility that the sealing performance on the other side is lowered.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a technique for suppressing a decrease in sealing performance even when terminal housings are fastened together in a laminated structure type connector.

  In order to achieve the above object, the present invention provides a male terminal housing in which a plurality of first joint terminals are arranged and stored, and a female terminal housing in which a plurality of second joint terminals are arranged and stored. When the male terminal housing is fitted into the female terminal housing, each of the one surface of the plurality of first joint terminals and each of the one surface of the plurality of second joint terminals are paired. In the connector in a stacked state in which the first joint terminals and the second joint terminals are alternately arranged, the connector is further accommodated in the male terminal housing and is stored in the connector. By pressing a plurality of insulating members fixed to each of the other surfaces of the plurality of first joining terminals and the adjacent insulating members, the plurality of first members A joint member and the plurality of second joint terminals are collectively fixed and electrically connected at each contact, and a connection member for fastening the male terminal housing to one side of the female terminal housing; and An inner wall formed on an inner peripheral surface of the female terminal housing on the other side surface and surrounding an opening from the male terminal housing to an inner peripheral surface of the other side surface; and the inner wall and the other side surface of the male terminal housing And a sealing member that seals between the inner peripheral surface of the connector.

  When the male terminal housing and the female terminal housing are fitted to the outer peripheral portion of the male terminal housing, the outer peripheral portion of the male terminal housing and the inner peripheral portion of the female terminal housing are It is preferable to provide a housing waterproof structure that seals between the two.

  According to the present invention, in the laminated structure type connector, even if the terminal housings are fastened together, it is possible to suppress a decrease in sealing performance.

It is a perspective view which shows the male side connector part and female side connector part which comprise the connector which concerns on one embodiment of this invention. It is a perspective view which shows a connector when a male side connector part and a female side connector part were made to fit. It is sectional drawing which shows a connector when a male side connector part and a female side connector part were made to fit. It is sectional drawing which shows a male side connector part. It is a figure which shows a 1st junction terminal, (a) is a side view, (b) is a bottom view. It is sectional drawing which shows a female side connector part. It is a figure which shows a 2nd junction terminal, (a) is a side view, (b) is a bottom view. It is a figure which shows a 2nd junction terminal, (a) is a side view, (b) is a top view.

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

  FIG. 1 is a perspective view showing a male connector part and a female connector part of a connector according to a preferred embodiment of the present invention, and FIG. 2 is a fitting of the male connector part and the female connector part. It is a perspective view which shows the connector when it was made to do, and FIG. 3 is the sectional drawing. In FIGS. 1 and 2, a braided shield 31 and a rubber boot 39, which will be described later, are omitted.

  As shown in FIGS. 1-3, the connector 1 which concerns on this Embodiment is comprised by the male side connector part 2 and the female side connector part 3, and by making these connector parts 2 and 3 fit, a some This is for connecting the power lines together.

  More specifically, the connector 1 includes a male side connector portion 2 having a male side terminal housing 5 in which a plurality (three) of first connecting terminals (male terminals) 4a to 4c are arranged and stored, and a plurality ( A female connector section 3 having a female terminal housing 7 in which three (2) second joining terminals (female terminals) 6a to 6c are arranged and housed, and a male connector section 2 and a female connector section 3; Are fitted so that each of one surface of the plurality of first joining terminals 4a to 4c and each one surface of the plurality of second joining terminals 6a to 6c face each other and the first joining terminals 4a to 4c. And the second joining terminals 6a to 6c are laminated structure type connectors that are in a laminated state in which they are alternately arranged.

  The connector 1 is used, for example, for connection between a vehicle driving motor and an inverter that drives the motor.

  More specifically, the male terminal housing 5 (left side portion in FIG. 1) of the male connector portion 2 is fitted to the shield case of the motor and is exposed from the male terminal housing 5. The joint terminals 4a to 4c are connected to the terminals of the terminal block installed in the motor shield case. By fitting the female connector portion 3 electrically connected to the inverter to the male connector portion 2, the motor and the inverter are electrically connected. The above is the connection on the motor side, but the same applies to the connection on the inverter side.

  Hereinafter, each structure of the connector parts 2 and 3 is explained in full detail.

  As shown in FIG. 4, the male connector portion 2 holds the three first joint terminals 4 a to 4 c in an aligned state in a state of being separated at a predetermined interval. A male terminal housing 5 in which 4c are arranged and housed, a plurality of substantially rectangular parallelepiped insulating members 8a-8d that are provided in the male terminal housing 5 and insulate each of the first connecting terminals 4a-4c, The shaft portion 9b includes a portion 9a and a shaft portion 9b connected to the head portion 9a, and the shaft portion 9b is connected to each of the plurality of first connecting terminals 4a to 4c and the plurality of second connecting terminals 6a to 6c and the plurality of insulating members 8a The plurality of first joint terminals 4a to 4c and the plurality of second joint terminals 6a to 6c are collectively fixed at the respective contacts by penetrating through 8d and pressing the adjacent insulating member 8a by the head 9a. Electrically connect In addition, the male terminal housing 5 is fastened to one side surface (the upper surface side in FIG. 3) of the female terminal housing 7, and at least a portion penetrating each contact is formed of an insulating material; Is provided.

  The first joint terminals 4a to 4c are plate-like terminals, and are non-conductive resins (for example, PPS (polyphenylene sulfide) resin, PPA (polyphthalamide) resin, PA (polyamide) resin, PBT (polybutylene terephthalate)). , Epoxy-based resin), and aligned and held at a predetermined interval from a resin molded body 10 which is a part of the male terminal housing 5. As a method of holding the first joint terminals 4a to 4c in the resin molded body 10, for example, a method of inserting the first joint terminals 4a to 4c when molding the resin molded body 10 and then curing and holding the resin, There is a method in which the first joint terminals 4a to 4c are press-fitted and held in a pre-molded resin molded body 10.

  Electricity of different voltage and / or current is transmitted to each of the first joint terminals 4a to 4c. For example, in the present embodiment, a three-phase AC power supply line for the motor and the inverter is assumed, and ACs having different phases by 120 ° are transmitted to each of the first joint terminals 4a to 4c. Each of the first connecting terminals 4a to 4c is preferably made of a metal having high conductivity such as silver, copper, or aluminum for the purpose of reducing power transmission loss in the connector 1 or the like. Moreover, each of the 1st junction terminals 4a-4c has some flexibility.

  Moreover, each of the 1st junction terminals 4a-4c is integral with the insulating members 8a-8c arrange | positioned adjacent to the other surface (surface on the opposite side to the surface joined to 2nd junction terminals 6a-6c) side. Fixed to. That is, as described above, the resin molded body 10 holds the first joint terminals 4a to 4c so as to be spaced apart and aligned at a predetermined interval, but the tips of the first joint terminals 4a to 4c that are held are held. Since the insulating members 8a to 8c are integrally fixed to the side, as a result, the insulating members 8a to 8c are also separated and aligned at a predetermined interval. By comprising in this way, the insulation between each contact and the insertion property of the 2nd junction terminals 6a-6c at the time of a fitting are ensured.

  The plurality of insulating members 8a to 8d are arranged and accommodated in the male terminal housing 5 and are opposite to the other surfaces of the plurality of first joining terminals 4a to 4c (the surfaces to be joined to the second joining terminals 6a to 6c). A plurality of first insulating members 8a to 8c fixed to the respective side surfaces) and a plurality of first joint terminals 4a to 4c and a plurality of second joints. When the terminals 6a to 6c are in a laminated state, they are provided so as to face the other surface of the second joint terminal 6c located on the outermost side (the surface opposite to the surface joined to the first joint terminal 4c). It consists of a second insulating member 8d.

  The plurality of insulating members 8a to 8d are fixed at positions that protrude toward the distal ends of the first connecting terminals 4a to 4c. As for each of these insulating members 8a-8d, each corner | angular part by which the 2nd junction terminal 6a-6c is inserted / extracted is chamfered. Moreover, as shown to Fig.5 (a), (b), in each of the surface fixed to 1st junction terminal 4a-4c of several 1st insulating members 8a-8c, it is the 1st junction terminal of fixation object. A fitting groove 11 for fitting 4a to 4c is formed. The first joining terminals 4a to 4c to be fixed are fitted into the fitting groove 11 and fixed integrally. Thereby, the level | step difference of the 1st insulation members 8a-8c and the 1st junction terminals 4a-4c is supplemented, and the lower surface (illustration lower surface) of the 1st insulation members 8a-8c is the 1st junction terminals 4a-4c. It becomes the same surface as the lower surface (the lower surface in the figure). With these configurations, the pluggability of the second joint terminals 6a to 6c with respect to the first joint terminals 4a to 4c when the male connector section 2 and the female connector section 3 are fitted is improved. In FIG. 5A, the structure of the first insulating member 8a is simplified, and the first insulating members 8a to 8c are drawn in the same manner.

  Referring to FIG. 4 again, the connecting member 9 is non-conductive on the outer periphery of a bolt 12 made of metal (for example, SUS, iron, copper alloy, etc.) and its shaft portion 9b (including a portion penetrating each contact). Insulation formed by coating non-conductive resin (for example, PPS (polyphenylene sulfide) resin, PPA (polyphthalamide) resin, PA (polyamide) resin, PBT (polybutylene terephthalate), epoxy resin) as a material Layer 13.

  In addition, as the connection member 9, you may use the thing which all formed with the nonelectroconductive resin, but the outer periphery of the axial part 9b of the metal volt | bolts 12 was covered with the insulating layer 13 from a viewpoint of intensity | strength. Is preferably used. That is, the connecting member 9 is made of a fold structure of the metal bolt 12 and the insulating layer 13 made of non-conductive resin, so that the strength can be increased as compared with the case where the entire connecting member 9 is made of non-conductive resin. it can. As the non-conductive resin that coats the metal bolt 12, a resin having a linear expansion coefficient close to that of the metal constituting the bolt 12 may be used to prevent creep.

  A packing 14 that prevents water from entering the male terminal housing 5 is provided on the outer periphery of the head portion 9 a of the connection member 9. In addition, an elastic member 15 that applies a predetermined pressing force to the first insulating member 8a is provided between the lower surface of the head 9a of the connecting member 9 and the upper surface of the first insulating member 8a immediately below the head 9a. The elastic member 15 is composed of, for example, a spring made of metal (for example, SUS). In the present embodiment, the elastic member 15 is positioned as a part of the connection member 9.

  In addition, a deformed hole (hexagonal hole in FIG. 4) 43 is formed on the upper surface of the head 9a, and the connecting member 9 can be rotated and tightened by fitting a tightening tool such as a spanner into the deformed hole 43. It can be done. Further, on the outer periphery of the upper portion of the head portion 9a, a flange portion 44 is formed for tightening the male terminal housing 5 to one side of the female terminal housing 7 when the connection member 9 is tightened (co-tightening). The By forming the flange 44, the male terminal housing 5 and the female terminal housing 7 can be more firmly fixed.

  On the upper surface of the first insulating member 8a with which the lower part of the elastic member 15 abuts, a recess 16 is formed that covers (stores) a part of the elastic member 15, and the bottom of the recess 16 (that is, a part of the elastic member 15 is formed). A receiving member 17 made of metal (for example, SUS or the like) that receives the elastic member 15 and prevents damage to the first insulating member 8a made of non-conductive resin is provided on the seat portion that abuts.

  The receiving member 17 prevents damage to the first insulating member 8a by dispersing the stress applied from the elastic member 15 to the upper surface of the first insulating member 8a. Therefore, it is preferable to make the contact area between the receiving member 17 and the first insulating member 8a as large as possible. In the present embodiment, in order to increase the contact area between the receiving member 17 and the first insulating member 8a, the receiving member 17 having a shape that contacts the entire bottom surface of the recess 16 is provided.

  The connecting member 9 is inserted into the male terminal housing 5 from the surface side (the upper surface side in FIG. 4) of the first joint terminals 4a to 4c to which the first insulating members 8a to 8c are fixed, The screw portion 18 at the tip of 9b is screwed into the screw hole 19 formed in the inner peripheral surface of the male terminal housing 5, so that the head portion 9a of the connection member 9 is directed toward the tip of the shaft portion 9b (FIG. 4). In other words, the plurality of first joining terminals 4a to 4c and the plurality of second joining terminals 6a to 6c are collectively fixed at each contact and electrically connected. .

  The male terminal housing 5 includes a hollow cylindrical body 20 having a substantially rectangular cross section. An outer peripheral portion on one end side (right side in the drawing) of the tubular body 20 fitted to the female terminal housing 7 is formed in a tapered shape in consideration of fitting property with the female connector portion 3. In addition, a rib 45 is formed on the outer peripheral portion of the cylindrical body 20 for the purpose of fixing the fitting direction and fixing and stabilizing the fitting after fitting with the female terminal housing 7. Furthermore, a terminal housing waterproof structure 21 that seals between the male connector portion 2 and the female connector portion 3 is provided on the outer peripheral portion on one end side of the cylindrical body 20. The terminal housing waterproof structure 21 includes a recess 22 formed in the outer peripheral portion on the opening side of the cylindrical body 20 and a packing 23 such as an O-ring provided in the recess 22.

  The other end side (the left side in the figure) in the cylindrical body 20 accommodates the resin molded body 10 in which the first joint terminals 4a to 4c are aligned and held. A flange 24 for fixing the male connector portion 2 to a casing (for example, a shield case of a motor) such as a device is formed on the outer periphery on the other end side of the cylindrical body 20. On the peripheral edge 25 of the flange 24 for inserting a bolt into the mounting hole and fixing it to a housing such as a device, a packing for sealing between the housing of the device and the male connector 2 is provided. May be. The configuration of the flange 24 is not based on the premise that the male connector 2 is fixed to a housing such as a device, and the flange 24 may be provided in the female connector 3, It may be provided in both the male connector part 2 and the female connector part 3. Moreover, it is good also as a free state in which neither the male side connector part 2 nor the female side connector part 3 is fixed to housings, such as an apparatus.

  The flange 24 is also effective in improving heat dissipation. That is, by forming the flange 24, the surface area of the male terminal housing 5 can be increased, and heat generated in the male connector portion 2 (for example, heat generated at each contact) When heat is radiated to the outside, heat dissipation can be improved.

  A connection member insertion hole 26 for inserting the connection member 9 is formed in an upper portion (upper side in the drawing) of the cylindrical body 20. The connection member insertion hole 26 is formed in a cylindrical shape, and its cylindrical lower end (lower side in the figure) is bent inward. The stroke of the connecting member 9 is restricted by the edge peripheral portion of the lower surface of the head portion 9a of the connecting member 9 coming into contact with the bent portion.

  The cylindrical body 20 is preferably formed of a metal such as aluminum having high electrical conductivity and thermal conductivity in order to reduce shielding performance, heat dissipation, and weight of the connector 1, but is formed of resin or the like. You may do it. When the male terminal housing 5 is formed of a nonconductive resin, the second insulating member 8d and the male terminal housing 5 may be integrally formed of a nonconductive resin. In the present embodiment, the cylindrical body 20 is made of aluminum. In this way, by forming the cylindrical body 20 with aluminum, when the connection member 9 is screwed into the connection member insertion hole 26, the cylindrical body 20 is tightened more firmly than when the cylindrical body 20 is formed with a non-conductive resin. There is an effect that can be.

  In this embodiment, since the clearance between the laminated structure and the male terminal housing 5 is designed to be as small as possible in order to reduce the size of the connector 1, the first joint terminal is connected via the metal male terminal housing 5. In order to prevent 4a-4c from being electrically short-circuited, it is necessary to ensure insulation between the male terminal housing 5 and the first joint terminals 4a-4c.

  Therefore, in this Embodiment, the electric shielding board 51 was provided in the both sides of the resin molding 10 which aligns and hold | maintains the 1st joining terminals 4a-4c. The electric shielding plate 51 is integrally formed with the resin molded body 10.

  In addition to the effect of ensuring insulation, the electrical shielding plate 51 also has a function as a touch protect that prevents foreign objects such as hands and fingers from coming into contact with the side surfaces of the first joint terminals 4a to 4c. That is, when the electrical shielding plate 51 is configured so that the clearance between the laminated structure and the male terminal housing 5 is small enough to prevent hands and fingers from entering, the male terminal housing 5 and the first connecting terminal 4a. When it is configured to be large enough to fit a hand or a finger, there is a slight function of ensuring insulation, but the first connecting terminal 4a when not fitted is effective. There exists an effect which prevents that a hand and a finger contact the side of ~ 4c.

  Moreover, you may make it form 1st insulating members 8a-8c so that the side surface of 1st junction terminal 4a-4c may be covered instead of the electrical shielding board 51. FIG.

  In addition, since it is thought that the ratio of an adult male is large as an operator who operates a connector, in this Embodiment, the size of an operator's hand and a finger | toe is based on the thing of an adult male. However, it is needless to say that this standard can be appropriately changed according to an assumed worker.

  As shown in FIG. 6, the female connector section 3 includes a female terminal housing 7 in which a plurality (three) of the second joining terminals 6 a to 6 c are arranged and stored.

  As shown in FIGS. 7 and 8, each of the second joining terminals 6 a to 6 c is formed integrally with the caulking portion 32 and the caulking portion 32 for caulking the conductor 28 exposed from the distal ends of the cables 27 a to 27 c. Plate-like contact 33. The tip of the plate-like contact 33 may be formed in a tapered shape so as to improve the insertability.

  In the present embodiment, in order to reduce the size of the connector 1, the cables 27a to 27c are arranged and held with as little gap as possible. Therefore, as shown in FIG. 8, the second joint terminals 6a to 6c are spaced apart at the same interval by bending the body portion 35 of the second joint terminal 6b connected to the cable 27b disposed at the center during alignment. It was arranged.

  Each of the second connection terminals 6a to 6c is preferably made of a metal such as silver, copper, or aluminum having high conductivity for the purpose of reducing power transmission loss in the connector 1 or the like. Moreover, each of the 2nd junction terminals 6a-6c has some flexibility.

Cables 27a to 27c extending from the inverter side are connected to one end sides of the second connection terminals 6a to 6c, respectively. Since each of these cables 27a to 27c is electrically connected to each of the first joint terminals 4a to 4c via the second joint terminals 6a to 6c, the voltage corresponding to each of the first joint terminals 4a to 4c. And / or current electricity is transmitted respectively. The cables 27 a to 27 c are formed by forming an insulating layer 29 on the outer periphery of the conductor 28. In the present embodiment, the conductor 28 having a cross-sectional area of 20 mm ² is used.

  Each of the cables 27 a to 27 c is aligned and held at a predetermined interval by a cable holding member 30 having a multi-tubular shape (a state in which a plurality of tubes are connected). Each of the second joint terminals 6a to 6c is paired with each of the second joint terminals 6a to 6c when the male connector part 2 and the female connector part 3 are fitted by the cable holding member 30. Thus, it positions and hold | maintains so that it may be located under each of 1st junction terminal 4a-4c which faces (namely, connection object).

  The cable holding member 30 is made of an insulating resin or the like so as to insulate the second joining terminals 6a to 6c from each other and prevent a short circuit. Even if each of the cables 27a to 27c connected to each of the second joining terminals 6a to 6c is a cable excellent in flexibility, the second holding terminals 6a to 6c are respectively predetermined by the cable holding member 30. Can be held in the position. That is, in this embodiment, since cables having excellent flexibility can be used as the cables 27a to 27c, the degree of freedom in wiring when the cables 27a to 27c are laid can be improved.

  In addition, the cable holding member 30 holds the cables 27a to 27c. More specifically, the cable holding member 30 holds the end portions of the cables 27a to 27c at positions close to the second connecting terminals 6a to 6c. The second joint terminals 6a to 6c are positioned so as to hold the two joint terminals 6a to 6c in a predetermined position, but the cables 27a to 27c are held and the second joint terminals 6a to 6c are also directly held. The positioning of the second connecting terminals 6a to 6c may be performed. Further, instead of the cable holding member 30, a joining terminal holding member that directly holds the second joining terminals 6 a to 6 c without holding the cables 27 a to 27 c may be used.

  With respect to the cable holding member 30, the second connecting terminals 6a to 6c are positioned by holding the cables 27a to 27c without directly holding the second connecting terminals 6a to 6c. In such a case, by making the cables 27 a to 27 c flexible, the distal end sides of the second connection terminals 6 a to 6 c can be made flexible with respect to the female terminal housing 7. . By comprising in this way, even if the position of the part which the 1st junction terminals 4a-4c deform | transform in the male side connector part 2 by the press of the connection member 9, and the 2nd junction terminal inserts changes a little. Can respond flexibly.

  Further, a braided shield 31 for the purpose of improving the shielding performance is wound around the portions of the cables 27 a to 27 c drawn from the female terminal housing 7. The braided shield 31 is in contact with a cylindrical shield body 41 described later, and is electrically connected to the male terminal housing 5 via the cylindrical shield body 41 (has the same potential (GND)).

  Referring to FIG. 6 again, the female terminal housing 7 includes a hollow cylindrical body 36 having a substantially rectangular cross section. Since the male terminal housing 5 is fitted into the female terminal housing 7, the inner peripheral portion of one end side (the left side in the drawing) of the cylindrical body 36 to be fitted with the male terminal housing 5 is the male terminal housing. 5 is formed in a taper shape. In addition, a guide fixing portion 46 for receiving a rib 45 formed on the cylindrical body 20 constituting the male terminal housing 5 to guide and fix the fitting is formed on the outer peripheral portion of the cylindrical body 36. . By guiding and fitting the male terminal housing 5 in the female terminal housing 7 while guiding the rib 45 with the guide fixing portion 46, smooth fitting can be achieved, and the male terminal housing 5 is firmly fixed after fitting. The loosening of the fitting due to vibration can be prevented.

  A cable holding member 30 that holds and aligns the cables 27a to 27c is housed on the other end side (the right side in the figure) of the cylindrical body 36. A packingless hermetic portion 37 is formed on the cable insertion side of the cable holding member 30 to prevent water from entering the female terminal housing 7 through the cables 27a to 27c.

  Further, a rubber boot 39 for preventing water from entering the cylindrical body 36 is covered on the outer periphery of the cylindrical body 36 from which the cables 27a to 27c are drawn.

  Further, when the female connector portion 3 and the male connector portion 2 are fitted to the upper portion (upper side in the drawing) of the cylindrical body 36, the connection member 9 provided in the male connector portion 2 is operated. The connection member operation hole 40 is formed. The connection member operation hole 40 also serves as a through hole for allowing the connection member 9 to be inserted into and removed from the male terminal housing 5 after the male terminal housing 5 and the female terminal housing 7 are fitted. I also serve. This role as a through hole has the effect that the assembly and maintenance of the connector 1 can be facilitated and the convenience is good. For example, even if the packing 14 provided on the connection member 9 is corroded due to changes over time and forced to be replaced, the connection member 9 can be used for operating the connection member without removing the female connector 3 from the male connector 2. The packing 14 can be repaired or replaced by removing from the hole 40.

  Further, the cylindrical body 36 is provided on the other side of the cylindrical body 36 (on the side opposite to the surface on which the male terminal housing 5 and the female terminal housing 7 are fastened together (on the lower surface side in FIG. 6)). Between the inner wall 48 that surrounds the opening 47 of the cylindrical body 20 to the inner peripheral surface on the other side surface, and the inner wall 48 and the inner peripheral surface on the other side surface of the cylindrical body 20. And a sealing member 49 for sealing. With such a configuration, when the connection member 9 is tightened, the male terminal housing 5 is drawn toward one side of the female terminal housing 7, so that the inner peripheral surface on the other side of the male terminal housing 5 is sealed. Even if a gap is formed between the packing 23 and the inner peripheral surface on the other side of the female terminal housing 7, water can be prevented from entering the connector 1. be able to.

  The cylindrical body 36 is preferably formed of a metal such as aluminum having high electrical conductivity and thermal conductivity in order to reduce shielding performance, heat dissipation, and weight of the connector 1, but is formed of resin or the like. You may do it. In the present embodiment, since the cylindrical body 36 is formed of a non-conductive resin, an aluminum cylindrical shield is formed on the inner peripheral surface of the other end side of the cylindrical body 36 in order to improve its shielding performance and heat dissipation. A body 41 is provided.

  The cylindrical shield body 41 has a contact portion 42 that contacts the outer periphery of the aluminum male terminal housing 5 when the male connector portion 2 and the female connector portion 3 are fitted together. And is connected to the male terminal housing 5 thermally and electrically. Thereby, the shielding performance and heat dissipation are improved. In particular, with regard to heat dissipation, significant improvement is expected by positively releasing heat to the male terminal housing 5 side, which is excellent in heat dissipation.

  Next, connection between the first joint terminals 4a to 4c and the second joint terminals 6a to 6c using the connector 1 according to the present embodiment will be described.

  When the male connector part 2 and the female connector part 3 are fitted, each of the second connecting terminals 6a to 6c is between each of the paired first connecting terminals 4a to 4c and the insulating members 8a to 8d. Inserted into. And by this insertion, while facing each of one surface of several 1st junction terminals 4a-4c and each of one surface of several 2nd junction terminals 6a-6c, it is 1st junction terminal 4a-. 4c, the 2nd junction terminals 6a-6c, and the insulating members 8a-8d will be in the laminated state arrange | positioned alternately.

  At this time, in the male side connector part 2, each of the insulating members 8a to 8c is fixed to the distal end side of the first connecting terminals 4a to 4c that are held in alignment with being separated at a predetermined interval. Therefore, the interval between the insulating members 8a to 8c can be maintained without separately providing a holding jig for holding the interval between the insulating members 8a to 8c. Thereby, each of the 2nd junction terminals 6a-6c can be easily inserted between each of the 1st junction terminals 4a-4c used as a pair, and insulating member 8a-8d. That is, the insertability of the second connection terminals 6a to 6c is not lowered. In addition, since it is not necessary to provide a holding jig for holding the interval between the insulating members 8a to 8c, it is very effective in that further downsizing can be realized as compared with the related art.

  In addition, the first insulating member 8a (or the contact of the first joint terminal 4a (or 4b) and the second joint terminal 6a (or 6b) is fixed to the first joint terminal 4a (or 4b) constituting the contact. 8b) and the first insulating member 8b (or 8c) fixed to the first joint terminal 4b (or 4c) constituting another contact. Similarly, the first contact terminal 4c and the second contact terminal 6c are connected to the first insulation member 8c fixed to the first connection terminal 4c constituting the contact and the inner surface of the male terminal housing 5. 2 between the insulating members 8d.

  After that, as shown in FIG. 3, the connection member 9 is operated from the connection member operation hole 40, and the screw portion 18 of the connection member 9 is screwed into the screw hole 19 of the male terminal housing 5 to be tightened. The member 9 is pushed into the bottom of the screw hole 19 while being rotated, and is pressed by the elastic member 15 in the order of the first insulating member 8a, the first insulating member 8b, the first insulating member 8c, and the second insulating member 8d. Each of the contact points is pressed so as to be sandwiched by any two of the insulating members 8a to 8d, and the contact points are in contact with each other while being insulated from each other. At this time, each of the first joint terminals 4a to 4c and each of the second joint terminals 6a to 6c are slightly bent by the pressing from the insulating members 8a to 8d and are brought into contact in a wide range. As a result, each contact point is firmly contacted and fixed even in an environment such as a vehicle that generates vibrations. Thereby, it is possible to realize a particularly effective connector for an automobile in which vibration is likely to occur.

  Further, when the connecting member 9 is tightened, the male terminal housing 5 is drawn toward one side of the female terminal housing 7 and between the packing 23 and the inner peripheral surface of the other side of the female terminal housing 7. Even if there is a gap, the inner peripheral surface of the other side of the male terminal housing 5 is pressed against the seal member 49, and water can be prevented from entering the connector 1.

  In short, in short, in the connector 1 according to the present embodiment, since the flange portion 44 is formed on the connection member 9, the male-side terminal housing 5 and the female-side terminal housing 7 are tightened together to further strengthen the fitting. Since the female terminal housing 7 is provided with the inner wall 48 and the seal member 49, the male terminal housing 5 is positioned on one side of the female terminal housing 7 when the connecting member 9 is tightened. Even if it is attracted to the connector, it is possible to suppress a decrease in the sealing performance of the connector 1.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the present embodiment, a three-phase AC power supply line is assumed. However, according to the technical idea of the present invention, for example, a connector for an automobile, which is a three-phase AC between a motor and an inverter. It is also possible to adopt a configuration in which lines for different purposes such as a power supply line and a DC two-phase power supply line for an air conditioner are connected together. By configuring in this way, it is possible to connect power lines for a plurality of uses at once with a single connector, so there is no need to prepare different connectors for each use, saving space and reducing costs. Can contribute.

  In the present embodiment, each of the first joint terminals 4a to 4c and each of the second joint terminals 6a to 6c are in contact with each other on the surface, but the second surface which is a contact side surface. Protrusions are formed on the surfaces of the first joint terminals 4a to 4c that come into contact with the joint terminals 6a to 6c, and the plate contacts 33 of the second joint terminals 6a to 6c are fitted into the protrusions. Also good. By comprising in this way, the coupling | bonding force with each of 1st junction terminal 4a-4c and each of 2nd junction terminal 6a-6c can be stabilized further. That is, it is particularly effective against vibration in the direction perpendicular to the connection member 9.

  Moreover, in this Embodiment, seeing from the head 9a side of the connection member 9, it is the structure which contacts each of 1st junction terminal 4a-4c and each of 2nd junction terminal 6a-6c linearly. However, each of the first joint terminals 4a to 4c of the male connector portion 2 is seen from the head 9a side of the connection member 9 with respect to each of the second joint terminals 6a to 6c of the female connector portion 3. The male terminal housing 5 and the female terminal housing 7 may be configured so as to intersect at right angles. That is, the male connector 2 and the female connector 3 may be fitted in an L shape. Similarly, the female terminal housing 7 and the second joint terminals 6a to 6c can be configured to be obliquely arranged with respect to the male terminal housing 5 and the first joint terminals 4a to 4c. In this way, if the gist of the present invention is applied, the insertion / extraction direction of the female connector 3 with respect to the male connector 2 can be diversified. In other words, the direction of drawing the cable from the connector can be adjusted to a desired direction, which can contribute to space saving.

  Also, the surface of each of the first joint terminals 4a to 4c and the second joint terminals 6a to 6c is roughened by knurling, etc., increasing the frictional force, making it difficult for the terminals to move, and fixing at the respective contacts. You may make it harden.

  Moreover, in this Embodiment, unlike the 2nd junction terminals 6a-6c, although the case where a cable was not connected to the one end side of the 1st junction terminals 4a-4c was demonstrated, it is limited to such a structure. Not. In other words, the connector in the present embodiment can also be used when connecting cables.

  Moreover, in this Embodiment, although the cable excellent in flexibility was used as cable 27a-27c, a rigid cable may be used.

  Moreover, in this Embodiment, although the volt | bolt 12 was demonstrated as an example as the connection member 9, this is not the meaning which limits the structure of the connection member 9 to a volt | bolt shape, For example, the male side connector part 2 and the female side connector A CPA lever (CPA: Connector Position Assurance) shaft portion that fixes the fitting with the portion 3 is configured as a connecting member 9, and the fitting is performed by rotating the CPA lever to fix the connecting member 9 to the head of the connecting member 9. It is good also as a structure which presses toward the front-end | tip of the axial part 9b from the part 9a (or tightens).

  In the present embodiment, the upper surface of the head 9a of the bolt 12 as the connecting member 9 is formed with a deformed hole 43 into which a hexagon wrench (also referred to as a hexagonal bar spanner) is fitted. However, this is based on the assumption that a commercially available hexagon wrench is used. However, assuming that a dedicated tool having a shape not commercially available is used, the deformed hole 43 having a shape corresponding to the dedicated tool is connected to the connecting member. It is good also as a structure formed in the upper surface of the head 9a of the volt | bolt 12 as 9. As shown in FIG.

  Further, in the present embodiment, the orientation of the connector in use may be such that the connecting member 9 is in a substantially horizontal state or a substantially vertical state. In other words, the usage condition of the connector in this embodiment does not require the orientation in the usage state.

  In the present embodiment, the adjacent first insulating member 8a is pressed by the head 9a of the connecting member 9 via the elastic member 15 which is a part of the connecting member 9, but the elastic member 15 is interposed therebetween. Instead, the adjacent first insulating member 8a may be pressed directly by the head 9a.

DESCRIPTION OF SYMBOLS 1 Connector 2 Male side connector part 3 Female side connector part 4a-4c 1st junction terminal 5 Male side terminal housing 6a-6c 2nd junction terminal 7 Female side terminal housing 8a-8c 1st insulating member 8d 2nd insulating member 9 Connection Member 44 Gutter 47 Male terminal housing opening 48 Inner wall 49 Seal member

Claims (2)

A male terminal housing in which a plurality of first joining terminals are arranged and stored;
A female terminal housing in which a plurality of second joining terminals are arranged and stored;
When the male side terminal housing is fitted to the female side terminal housing, each one surface of the plurality of first joining terminals and each one surface of the plurality of second joining terminals face each other. In the connector in a stacked state in which the first joint terminals and the second joint terminals are alternately arranged,
The connector further includes
A plurality of insulating members that are aligned and housed in the male terminal housing and fixed to each of the other surfaces of the plurality of first joining terminals;
By pressing the adjacent insulating members, the plurality of first joint terminals and the plurality of second joint terminals are collectively fixed and electrically connected at each contact, and the male terminal housing is A connection member for fastening to one side of the female terminal housing;
An inner wall that is formed on the inner peripheral surface of the other side surface of the female terminal housing and surrounds from the opening of the male terminal housing to the inner peripheral surface of the other side surface;
A connector comprising: a seal member that seals between the inner wall and an inner peripheral surface on the other side of the male terminal housing.   When the male terminal housing and the female terminal housing are fitted to the outer peripheral portion of the male terminal housing, the outer peripheral portion of the male terminal housing and the inner peripheral portion of the female terminal housing are The connector according to claim 1, further comprising a waterproof housing structure that seals between the two.

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