JP5748495B2 - Lever fitting type connector - Google Patents

Description

  The present invention relates to a lever fitting type connector in which a mating connector is fitted and detached by a pivoting operation of a lever, and a lever is locked to a connector body when the connector is fitted.

  FIGS. 8A and 8B show one form of a conventional lever fitting connector (see Patent Document 1).

  The lever fitting type connector 71 includes a rectangular hood portion 72a in the front half of the connector housing 72, a pair of left and right cylindrical walls 72b, and a substantially U-shape pivotally supported by the left and right wall portions of the hood portion 72a. Lever 73, a rear holder 74 inserted into the rear end of each cylindrical wall 72b, and a hook for locking protruding rearward from the rear end of the central plane wall 72c of the left and right cylindrical walls 72b. The lever 73 is pivoted rearward to fit a mating connector (not shown) into the hood portion 72a, and at the same time, the operation wall 73a at the tip of the lever 73 is pivoted. A recess (not shown) is engaged with the hook piece 75 to lock the lever 73.

  A male terminal (not shown) is accommodated in the hood portion 72a, the male terminal is connected to the electric wire 76, and the electric wire 76 is waterproofed by packing (not shown) in the rear holder 74 through the cylindrical wall 72b. The lever 73 is provided with a cam hole 73b, and a follower pin (not shown) of the mating connector is inserted from the entrance of the cam hole 73b. By rotating the lever 73 rearward in this state, the mating connector is moved into the hood portion 72a. The female terminal in the mating connector is connected to the male terminal.

As a lever fitting type connector (not shown) other than the above, for example, Patent Document 2 is provided with a slider having a male terminal for interlocking in order to safely connect a motor and an inverter of an automobile, for example. It is described that electricity is applied to both the male and female terminals of the already-fitted connectors and the subsequent electric wires by connection between the connector and the female terminal for interlock of the mating connector. The lever of this lever fitting type connector is in the connector fitting state, and the left and right arm portions are locked by the left and right lever pressing walls (locking portions) like hooks of the slider, not the operation wall at the rotating tip.

JP 2009-70754 A (FIGS. 2 and 3) JP 2007-149420 A (FIGS. 2, 3 and 6)

  However, in the conventional lever fitting connector 71 of FIG. 8, the hook piece (locking portion) 75 for locking the operation wall 73a on the rotating tip side of the lever 73 is used for inserting a pair of left and right electric wires. Since the hook piece 75 is protruded rearward from the flat wall 72c provided on the cylindrical wall 72b in relation to the arrangement at the upper center of the cylindrical wall 72b, the protruding length of the hook piece 75 is limited. The length of the lever 73 is also limited. For example, when the lever 73 is short, a large operating force is required when the connector is detached, and there is a concern that the operability of the lever 73 may deteriorate.

  Further, since the flat wall 72c on which the hook piece 75 is provided protrudes higher than the cylindrical wall 72b at the center of the left and right cylindrical walls 72b, there is a concern that the lock structure may become enlarged. Further, when the pivoting tip side of the lever 73 is engaged with the hook piece 75, there is a concern that the hook piece 75 bends downward by an external force or the like and the lever 73 may be unlocked unexpectedly. Further, it has been desired that the engagement lock between the pivoting tip side of the lever 73 and the hook piece 75 can be easily released.

  In view of the above, the present invention is a lever fitting type connector that locks the rotating tip end side of the lever to the connector main body side, and is formed with a long lever to reduce the operating force when the connector is fitted and detached. It is possible to provide a lever-fitting connector that can save space for the structure related to the lock, and can securely lock the lever, and can be easily unlocked. Objective.

In order to achieve the above object, a lever fitting type connector according to claim 1 of the present invention is a lever that is rotatably attached to the first half of a connector housing, and is attached to the second half of the connector housing to lead out an electric wire. A rear holder, the lever having a locking projection on the rotation tip side, and the rear holder connects the pair of left and right cylindrical walls for leading out the electric wire and the pair of cylindrical walls in the radial direction. A flexible support plate erected on the connecting wall between the pair of cylindrical walls, a lock plate that intersects the upper end of the support plate and continues to the rear, and a lower side of the lock plate And provided with a hole for engaging the protrusion , the support plate is formed in a substantially Y shape when viewed from the front, and the hole is provided between the left and right branch plate portions. It is characterized by.

  With the above configuration, by rotating the lever backward when mating with the mating connector, the protrusion of the lever simultaneously presses the front end of the lock plate downward in the thickness direction at the same time as the connector is mated. The lock plate is elastically bent backward in the direction, and the lock plate is rotated backward integrally with the support plate with the support plate as a fulcrum, and the protrusion is engaged with the hole of the support plate. As a result, the lever is locked and unintentional pivoting forward (in the direction in which the connector is detached) is prevented. To unlock the lever, press the lock plate downward in the plate thickness direction, the support plate bends backward in the plate thickness direction, and the lock plate is integrated backward with the support plate around the support plate. It rotates and the hole part is detached from the protrusion. As a result, the lever is unlocked, and in this state, the lever is rotated forward to release the mating connector. The lever has a cam portion such as a cam hole and has an existing structure for moving the driven pin of the mating connector along the cam portion in the connector fitting / removing direction.

The width lower half of the narrow and the upper half of the wide support plate (left and right branch plate section) and is shaped substantially delta between the pair of cylindrical wall along the outer peripheral surface of the pair of left and right cylindrical wall It is housed in a space-saving manner without leaving a large gap in the space. The lower half portion of the support plate, in particular, the narrow width acts as a bending portion.

The lever fitting type connector according to claim 2 is the lever fitting type connector according to claim 1 , characterized in that the pair of cylindrical walls have rearwardly inclined surfaces that allow displacement of the lock plate. .

  With the above configuration, the lock plate is pressed downward by the protrusion of the lever when the connector is engaged, and the lock plate is pressed downward by the operator's fingers when the connector is detached. The fulcrum is pushed down while rotating backward in the upper space of the inclined surface of the cylindrical wall.

The lever fitting type connector according to claim 3 is the lever fitting type connector according to claim 1 or 2 , wherein left and right end portions of the lock plate are covered with a protection wall raised from the pair of cylindrical walls. It is characterized by that.

  With the above-described configuration, interference with the outside of the lock plate is blocked by the protective wall, and the unlocking of the lever due to unexpected depression of the lock plate is prevented.

  According to the first aspect of the present invention, the rear holder mounted on the rear portion of the connector housing is provided with a portion (lock plate, support plate, or hole) that engages the protrusion on the rotation tip side of the lever. The lever span can be set longer to reduce the operating force when the connector is engaged / disengaged, thereby improving operability. In addition, the space between the pair of cylindrical walls of the rear holder can be used effectively to dispose the support plate, or the lock plate can be displaced downwardly into the space between the pair of cylindrical walls when the connector is fitted or detached. The space for the lock structure can be saved and the connector body can be made compact. In addition, even when a force in the unlocking direction is applied to the lever when the lever is locked, the protrusion of the lever lifts the lock plate in the opposite direction to the unlocking, so that the unlocking does not occur unexpectedly and the reliability of the locking is improved. Rise. Further, when releasing the lock of the lever, the lock plate may be pressed in the same direction as the lock direction of the lever, so that the lock can be easily released.

In addition , a substantially Y-shaped support plate is accommodated in a substantially delta-shaped space between the pair of cylindrical walls along the outer peripheral surface of the pair of cylindrical walls of the rear holder, thereby further increasing the lock structure. Space can be saved and the connector body can be made more compact.

According to the second aspect of the present invention, when the connector is engaged / disengaged by the lever, the lock plate is pushed down so as to bite between the pair of cylindrical walls along the inclined surface. Space can be saved and the connector body can be made more compact.

According to the third aspect of the present invention, it is possible to prevent the lever from being unlocked due to unexpected depression of the lock plate by preventing the lock plate from interfering with the protective wall.

It is a side view at the time of mating connector not fitting showing one embodiment of a lever fitting type connector concerning the present invention. It is a side view which similarly shows the state in the middle of mating connector fitting. It is a side view which similarly shows the state at the time of mating connector fitting. It is a front view perspective view which shows one form of the lever of a lever fitting type connector. It is a back perspective view which shows one form of the rear holder of a lever fitting type connector. It is a rear view which similarly shows a rear holder. It is the longitudinal cross-sectional view fractured | ruptured from the left-right direction center which shows the state which made the other party connector fit to the lever fitting type connector. One form of the conventional lever fitting type connector is shown, (a) is a side view and (b) is a top view.

  1 to 7 show an embodiment of a lever fitting connector according to the present invention.

  As shown in FIG. 1, in the lever fitting type connector 1, in the initial fitting state (substantially non-fitting) with the mating connector 2, the rotating tip 3 a of the lever 3 stands and tilts slightly toward the mating connector 2. The rotation tip 3a of the lever 3 has a locking projection 4 (FIG. 4). The lever 3 is rotatably connected to the shaft 6 of the connector housing 5 made of insulating resin, and the rear of the connector housing 5 A rear holder 7 made of synthetic resin is attached to the rear holder 7, and a lock plate 8 (FIG. 5) that gets over the protrusion 4 when the lever rotates in the direction of arrow A, and an engagement hole 9 (see FIG. 6) is provided.

  In FIG. 1, the tip of the insulating connector housing 10 of the mating connector 2 enters the front end of the hood 13 of the connector housing 5 of the lever fitting connector 1, and the circular driven pin 11 of the mating connector 2 is connected to the lever 3. The cam hole (cam portion) 12 is inserted into the inlet 12a. A shaft portion 6 for supporting the lever rotation is located on the same horizontal plane as the driven pin 11 behind the driven pin 11. The shaft portion 6 protrudes horizontally on the outer surfaces of the left and right side walls (represented by reference numeral 13) of the hood portion 13 in the first half of the connector housing 5. The cam hole 12 includes a curved portion 12b curved downward from the inlet 12a and a straight portion 12c on the terminal side of the curved portion 12b. A cam groove (not shown) may be provided instead of the cam hole 12. The shaft portion 6 is located near the upper portion of the straight portion 12c. A hook-shaped operation portion (substitute with reference numeral 3 a) at the rotating tip of the lever 3 is positioned above the connector housing 5.

  The lever fitting type connector 1 of this example has an interlock connector 14 for safety circuit interruption on the upper side, and the interlock connector 14 is fitted and connected to the interlock connector 15 of the mating connector 2. Description of the interlock connectors 14 and 15 is omitted. The lever 3 and its locking structure of this example can also be applied to a connector (not shown) that does not have the interlock connector 14. In the specification, the interlock connector 14 is described as an integrated small connector. In FIG. 1, reference numeral 16 denotes a small-diameter electric wire led backward from the small connector 14.

  The mating connector 2 has a flange 17 at an intermediate portion in the front-rear direction of the connector housing 10, and the flange 17 has a horizontal guide wall 18 for the small connector 15 at the upper portion, and a bolt insertion hole for fixing at a peripheral point. 19 (FIG. 7). The flange 17 is directly attached to a device (not shown) such as an automobile motor or an inverter. In the specification, the directions of up, down, front, back, left, and right are for convenience of explanation, and do not always coincide with the mounting direction of the connector 1.

  The connector housing 5 of the connector 1 has a thick first half 5a and a thin second half 5b, and a pair of left and right male terminals (not shown) in a substantially rectangular or oval hood 13 in the first half. Are accommodated in parallel, and the left and right electric wires 20 crimped and connected to the male terminals are a pair of left and right cylindrical walls 21 in the rear half of the connector housing 5 and a rear holder 7 mounted on the outer rear half of the cylindrical wall 21. It is derived to the outside (backward). The electric wire 20 is a shielded electric wire in which a conductive metal braid (not shown) is connected to a conductive metal shield shell (not shown) in the connector housing 5.

  A waterproof rubber plug (not shown) is externally attached to the electric wire 20 inside the cylindrical wall 21 in the latter half of the connector housing 5, and the inner peripheral lip of the waterproof rubber plug is in close contact with the outer peripheral surface of the electric wire 20. In a state where the outer peripheral lip is in close contact with the inner peripheral surface of the cylindrical wall 21, the rear end wall 22 of the rear holder 7 prevents the waterproof rubber stopper from coming off.

  The mating connector 2 has, for example, a female terminal (not shown) with an electric wire 23 in the connector housing 10, a plate portion of the shield shell 24 on the front surface of the flange 17, and a cylindrical portion in the first half of the connector housing 10. The waterproof packing 25 is provided on the outer periphery of the. In this example, the connector 1 with the lever 3 is referred to as a lever fitting connector, but the connector 1 including the mating connector 2 may be referred to as a lever fitting connector.

Rear holder 7 of the connector 1 is divisible into upper and lower, the upper half 7a and a lower half portion 7b are fixed to each other by locking means (locking claw 26 and the engaging frame pieces 27 a), the upper half portion 7a Integrally has an upper portion 7c extending upward and forward. The rear holder 7 is locked (fixed) to the rear half 5b of the connector housing 5 by locking means (not shown). The lower half 7b of the rear holder 7 can be formed integrally with the rear half 5b of the connector housing 5 (in this case, the rear holder 7 is only the upper half 7a).

  A horizontal lock plate 8 (FIG. 5) is integrally provided on the upper rear end side of the rear holder 7. The front end 8 a of the lock plate 8 is located in the middle of the cylindrical wall 27 of the rear holder 7 in the front-rear direction, and the rear end 8 b of the lock plate 8 protrudes rearward from the rear end 22 of the cylindrical wall 27. The lock plate 8 is disposed inside a pair of left and right vertical protective walls 28 (FIG. 5). Details of the lever 3 and the rear holder 7 will be described in detail with reference to FIGS.

  By rotating the lever 3 backward (counterclockwise) as indicated by an arrow A from the initial fitting state of the connector 1 of FIG. 1, the cam hole 12 of the lever 3 and the connector housing 5 are horizontally aligned as shown in FIG. The driven pin 11 of the mating connector 2 is drawn in the connector fitting direction along the guide hole 29 (actually, the mating connector 2 is fixed so that the connector 1 is drawn in the connector fitting direction), as shown in FIG. As described above, the follower pin 11 is positioned at the short straight portion 12c on the lower end side of the cam hole 12, and at the same time, the rotation tip side portion 3a of the lever 3 tilts rearward substantially horizontally, and the projection 4 on the rotation tip side is the rear holder. 7 is moved into and engaged with the lower hole 9 of the lock plate 8 while being displaced substantially downward. In this state, both connectors 1 and 2 are completely fitted and connected.

  FIG. 2 shows a state where the connectors 1 and 2 are being fitted, and FIG. 3 shows a state where the connectors 1 and 2 are completely fitted. To release the fitting of the connectors 1 and 2 from the state shown in FIG. 3 (release the connector), the lever 3 is depressed by pushing down the lock plate 8 with fingers (the hole 9 is lowered integrally with the lock plate 8). The projection 4 is detached upward from the hole 9 and the lever 3 is rotated forward (clockwise) as shown by the arrow B, so that the connectors 1 and 2 are separated forward and backward by the action of the cam hole 12 and the driven pin 11. Let The operation of the interlock small connector 14 is the same as in the prior art. The electrical connection of the small connector 14 is canceled in advance, and the energization of the main electric wires 20 and 23 of both connectors 1 and 2 is stopped. 3 is rotated in the direction of arrow B (the direction in which the connector is detached).

  FIG. 4 shows the detailed structure of the lever 3. The lever 3 includes a pair of left and right vertical arm plates 30 and a horizontal bowl-shaped operation unit 31 that connects both the arm plates 30. Each arm plate 30 is provided with a cam hole 12, a shaft support circular hole 32 is provided in a direction opposite to the inlet 12 a of the cam hole 12, and a terminal end 12 c of the cam hole 12 is located in the vicinity of the circular hole 32. The inlet 12 a of the cam hole 12 is far away from the circular hole 32. The inlet 12 a of the cam hole 12 is connected and reinforced by a frame piece 33.

  The lever 3 in FIG. 4 is reversed from the front and back in FIG. Arrow A is the direction of rotation for connector fitting. On the inner side surface of the arm plate 30, for example, a flexible lock piece 34 is provided to be engaged with the connector housing 5 in a state where the lever 3 in FIG.

  A concave portion 35 is provided at the center of the wall surface of the operating portion 31 of the lever 3 on the rotating front end 3a side (represented by reference numeral 31), and the concave portion 35 is notched on the rear end side, that is, on the side where the lever 3 is rotated for connector fitting. (The notch is indicated by reference numeral 35a), and the left and right sides and the front side are surrounded by vertical wall surfaces 35b. The bottom wall (represented by reference numeral 35) of the recess 35 is extended rearward in a substantially trapezoidal shape, and a locking projection 4 is vertically provided on the protrusion 35c. The protrusion 4 is horizontally long and formed in a plate shape (rectangular shape), and the protrusion height of the protrusion 4 is substantially equal to the depth of the recess 35.

  5 to 6 show the detailed structure of the rear holder 7. 5 to 6 show only the upper half portion 7a of the rear holder 7 of FIG. 1, and the lower half portion 7b is omitted (this is not the case when the lower half portion 7b is provided integrally with the connector housing 5). ).

  As shown in FIG. 5, the rear holder 7 includes a horizontal connection that connects a pair of left and right semicircular cylindrical walls, that is, a semi-cylindrical wall 27, and an inner lower end of the pair of semi-cylindrical walls 27 in the radial direction. Between the pair of protective walls 28 and a pair of left and right protective walls 28 that are formed upright on the upper portion (inside the top) of each of the semi-cylindrical walls 27 and a pair of left and right protective walls 28. The horizontal locking plate 8, the locking claw 26 that is suspended from the lower outer surface of each semi-cylindrical wall 27, and the front end of each semi-cylindrical wall 27 through L-shaped and diagonally upward connecting walls 37. And an upper portion 7c extended upward.

  Each semi-cylindrical wall 27 has an elongated rectangular hole 38 at the top, and the hole 38 has, for example, a locking projection (not shown) on the outer periphery of the cylindrical wall 21 in the latter half of the connector housing 5 (FIG. 1). Engage. Each semi-cylindrical wall 27 integrally has a semi-annular wall 22 as a stopper wall at the rear end, and the semi-annular wall 22 has a half-divided (semi-circular) wire insertion hole (groove) 39. The horizontal connecting wall 36 is disposed between the front end of the semi-cylindrical wall 27 and the front of the semi-annular wall 22.

  Each protective wall 28 is arranged symmetrically, and is composed of a vertical wall portion 28a raised from the semi-cylindrical wall 27 and an upper horizontal wall portion 28b perpendicular to the vertical direction from the vertical wall portion 28a. On the lower side of the lock plate 8 (inside the vertical wall portion 28a), the outer surface of the semi-cylindrical wall 27 is formed as an inclined surface 40 that is notched in a rectangular shape and is inclined downward.

  The upper portion 7c of the rear holder 7 is composed of a central arch-shaped electric wire protective wall 41 and horizontal wall portions 42 continuing on the left and right sides of the protective wall 41. The protective wall 41 is led out from the small connector 14 (FIG. 1). The small-sized electric wire 16 is accommodated inside.

  As shown in FIG. 6, a substantially Y-shaped flexible support plate 43 is vertically formed from the lower horizontal connecting wall 36 between the pair of left and right semi-cylindrical walls 27, and the upper end of the support plate 43 is It continues integrally with the front end of the horizontal lock plate 8. The support plate 43 includes a lower half upright plate portion 43a raised from the connecting wall 36 and a pair of upper half branches raised from the upright plate portion 43a to the left and right so as to be inclined outward. It consists of a plate part 43b.

  The lower half portion 43c of the upright plate portion 43a is widened and continues to the outer surfaces of the left and right semi-cylindrical walls 27. Next to the branch plate portion 43b, a substantially inverted trapezoidal locking hole portion 9 is formed between the pair of branch plate portions 43b, and the upper end of the hole portion 9 is located on the same horizontal plane as the lower surface of the lock plate 8, The upper ends of the pair of branch plate portions 43b are widened to substantially the same width as the lateral width of the lock plate 8.

  A pair of left and right vertical reinforcing ribs 44 are integrally provided on the rear surface of the support plate 43, and the lower ends of the ribs 44 are integrally continued to the upper surface of the connecting wall 36. Reinforcing ribs 45 are provided on the lower surface of the lock plate 8 on both the left and right sides of the hole 9, and the front ends of the ribs 45 are orthogonal to the support plate 43 and continue integrally. A narrow gap is provided between the upper surface of the lock plate 8 and the horizontal portion 28b on the upper side of the protective wall 28, and the lock plate is displaced (moved) between the lower surface of the lock plate 8 and the inclined outer surface 40 of the semi-cylindrical wall 27. Wide gap 46 is provided.

  The lock plate 8 can be rotated and displaced downward with the upper end of the support plate 43 as a fulcrum, and the support plate 43 can be moved backward (elastically and flexibly) together with the lock plate 8 with the lower end as a fulcrum. The ribs 44 and 45 are for increasing the flexural strength, and are not essential. The protective wall 28 covers the left and right end portions 8c of the lock plate 8 to protect it from interference with the outside.

  The lower half upright plate portion 43a of the support plate 43 is arranged in the lower space 47a between the left and right semi-cylindrical walls 27, and the upper space between the left and right semi-cylindrical walls 27 is wide. 47b, the upper half branch plate portion 43b of the support plate 43 is disposed along the arc-shaped outer peripheral surface of each semi-cylindrical wall 27, and the outer end of the branch plate portion 43b is the arc-shaped outer peripheral surface of the semi-cylindrical wall 27. Located close to. In this way, the substantially inverted triangular space (valley part) 47 between the left and right semi-cylindrical walls 27 is effectively used to erect the support plate 43 and displace the lock plate 8 downward. The lock structure of the lever 3 is saved.

  FIG. 7 shows that the lever 3 is pivoted rearward so that both the connectors 1 and 2 are completely fitted, and the projection 4 on the pivoting tip side of the lever 3 is inserted into the hole 9 below the lock plate 8 of the rear holder 7. This shows a state in which the engagement is locked. FIG. 7 is a longitudinal sectional view from the center in the left-right direction of FIG. For this reason, the left and right terminals in the connector housing 5 are not shown. FIG. 7 corresponds to FIG.

  The front end portion of the lock plate 8 is engaged with the lower half portion of the recess 35 on the upper side of the protrusion 4 in the operation wall 31 of the lever 3. Reference numeral 28 denotes a protective wall (the protective wall 28 is not engaged with the recess 35). On the lower side of the lock plate 8, the rear lower inclined surface 40 on the upper side of the semi-cylindrical wall 27 is located facing. The hole 9 is located above the support plate 43, and the lock plate 8 is located above the hole 9.

  The protrusion 4 has a downward inclined surface 4a at the tip. Ribs 44 are arranged on the vertical rear surface of the support plate 43 in a vertically long triangle shape in a side view. The support plate 43 continues perpendicular to the lower connecting wall 36. The support plate 43 is formed thinner than the lock plate 8. The protrusion 4 is formed to protrude longer than the thickness of the support plate 43.

  When the lever 3 is rotated in the connector fitting direction (arrow A direction) as shown in FIG. 2 to obtain the lever locked state of FIG. 7, first, the protrusion 4 of the lever 3 hits the upper surface of the lock plate 8 and the lock plate. 8, the front end 8a is pressed downward in the thickness direction, and the pressing force causes the support plate 43 to bend backward in the thickness direction, while the lock plate 8 rotates backward with the support plate 43 as a fulcrum. Then, the protrusion 4 gets over the lock plate 8 and enters the hole 9 of the support plate 43. At the same time, the lock plate 8 and the support plate 43 are restored together, and the protrusion 4 is firmly penetrated into the hole 9. Then, the upper surface of the protrusion 4 comes into contact with the lower surface of the lock plate 8 to perform reliable lever locking.

  In order to release the lock of the lever 3 from the state of FIG. 7, the operator or the like presses the lock plate 8 downward with fingers or the like, so that the support plate 43 is bent so as to warp backward, while the support plate 43 The lock plate 8 pivots backward with the lower end side as a fulcrum, and the projection 4 on the fixed side comes off (detaches) from the hole 9, and in this state, the operator pulls up the lever 3 in the direction of arrow B (clockwise forward) The lock is easily released. The inclined surface 40 that descends rearward of the semi-cylindrical wall 27 allows the lock plate 8 to rotate backward. The cutout space 40a on the upper side of the inclined surface 40 acts as a lock plate escape space. “Escape” means prevention of interference.

  By locking the rotation tip of the lever 3, that is, the protrusion 4, it is possible to reliably perform locking when the connector is fitted, and to easily perform unlocking. Moreover, by making the direction (arrow A direction) to push the lock plate 8 coincide with the lever lock direction, the lock can be easily released with a low load, and a high holding force can be exhibited at the time of locking.

  Further, the lock plate 8 and the hole 9 are provided in the rear holder 7 which is the rearmost part of the connector 1 and the protrusion 4 is provided at the rotation tip of the lever 3, so that the rotation span of the arm plate 30 of the lever 3 is set long. Thus, the operating force of the lever 3 when the connector is engaged / disengaged can be reduced (operability is improved). Further, since the lock plate 8 and the support plate 43 are integrally provided in the rear holder 7 instead of the connector housing 5, the resin molding of the lock plate 8, the support plate 43, and the hole 9 can be easily and accurately performed at low cost. It can be carried out.

  As shown in FIG. 7, the upper half-cylindrical wall 27 of the rear holder 7 is joined (combined) with the lower half-cylindrical wall 27 to form a cylindrical tubular wall 27, and the arch-like shape of the upper portion 7 c of the rear holder 7 is formed. The electric wire 16 of the small connector 14 passes through the protective wall 41, and the electric wire 16 is inserted and guided into the horizontal groove space 48 in the lower half cylindrical wall 27 below the horizontal connecting wall 36 to the outside (rear). Has been derived.

  The connector housing 10 of the mating connector 2 is inserted into the front hood portion 13 of the connector housing 5, the small connectors 14 and 15 are fitted to each other, and the terminals (not shown) are connected to each other. In FIG. 7, reference numerals 20 and 23 denote electric wires on the main circuit side, 19 denotes a bolt insertion hole of the flange 17, and 25 denotes a waterproof packing that is in close contact with the device side. The assembly of the connector housing 5, the terminals, and the rear holder 7 is referred to as a connector main body with respect to the lever 3.

  The lever fitting type connector according to the present invention is, for example, when a device such as a motor such as an electric vehicle including a hybrid car and a device such as an inverter are electrically connected to each other or disconnected from each other. It can be used to smoothly and reliably lock and unlock the lever.

DESCRIPTION OF SYMBOLS 1 Lever fitting type connector 3 Lever 4 Protrusion 5 Connector housing 7 Rear holder 8 Lock plate 9 Hole part 20 Electric wire 27 Cylindrical wall 28 Protective wall 36 Connecting wall 40 Inclined surface 43 Support plate 43b Branch plate part

Claims (3)

A lever that is rotatably mounted on the first half of the connector housing, and a rear holder that is mounted on the second half of the connector housing and leads out the electric wire, the lever having a locking protrusion on the rotating tip side, The rear holder has a pair of left and right cylindrical walls for leading out the electric wire, a connecting wall that connects the pair of cylindrical walls in the radial direction, and a flexible wall that stands on the connecting wall between the pair of cylindrical walls. A support plate, a lock plate that intersects the upper end of the support plate and continues rearward, and a hole that is provided on the support plate below the lock plate and engages the protrusion ,
The lever fitting type connector, wherein the support plate is formed in a substantially Y shape in a front view and has the hole portion between left and right branch plate portions . Lever fitting-type connector according to claim 1, characterized in that an inclined surface sloping downward after the pair of cylindrical walls to permit displacement of the locking plate. The lever fitting type connector according to claim 1 or 2 , wherein left and right ends of the lock plate are covered and protected by a protective wall raised from the pair of cylindrical walls.

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