CN113994547A

CN113994547A - Lever-type connector

Info

Publication number: CN113994547A
Application number: CN202080040621.6A
Authority: CN
Inventors: 铃木智幸
Original assignee: Japan Aviation Electronics Industry Ltd
Current assignee: Japan Aviation Electronics Industry Ltd
Priority date: 2019-09-03
Filing date: 2020-05-27
Publication date: 2022-01-28
Anticipated expiration: 2040-05-27
Also published as: JP6776421B1; JP2021039888A; WO2021044678A1; CN113994547B

Abstract

The lever (6) has a planar plug first interference surface (42). The receptacle connector (3) has a planar receptacle first interference surface (60). In a fitted state of the lever-type connector (1), a plug first interference surface (42) and a receptacle first interference surface (60) are disposed so as to face each other and between a plug lock portion (41) and a rotation axis (23) of a lever (6). The rotation axis (23) of the lever (6) is arranged on the side opposite to the operation part (34) in a manner of clamping the midline (17). When the fitting form of the plug connector (2) to the socket connector (3) is inclined, the plug first interference surface (42) and the socket first interference surface (60) are in contact with each other, so that the fitting form is prevented from being inclined.

Description

Lever-type connector

Technical Field

The present invention relates to a lever type connector.

Background

Document 1 (japanese patent laid-open publication No. 2017-168391) discloses a lever type connector 100 using a cam mechanism, as shown in fig. 11 of the present application. That is, the housing 101 having a cylindrical shape is rotatably supported by a lever 103 having a cam groove 102. A cam follower 106 into which the cam groove 102 is inserted is formed in the mating housing 105 fitted in the fitting space 104 of the housing 101. The rotation axis 103A of the lever 103 and the central axis of the cam follower 106 are offset in a direction orthogonal to the fitting direction of the housing 101 and the mating housing 105. Thus, in patent document 1, the lever-type connector 100 is miniaturized in the fitting direction and the direction orthogonal thereto.

Disclosure of Invention

Problems to be solved by the invention

However, in the configuration of patent document 1, since the lever 103 and the cam follower 106 are in point contact, when the lever connector 100 is used in a vibration environment, the loss of the contact point is significant, and there is a concern that damage of the housing 101 to the mating housing 105 is increased and the fitting form of the housing 101 to the mating housing 105 becomes unstable.

The purpose of the present invention is to provide a technique for stabilizing the fitting form of a lever connector.

Means for solving the problems

According to an aspect of the present invention, there is provided a lever type connector including: a plug connector including a plug connector body and a lever rotatably supported by the plug connector body and having a plug locking portion and an operating portion; and a receptacle connector having a receptacle locking portion; by operating the operating portion of the lever, when the plug connector is fitted to the receptacle connector, the plug connector is prevented from being pulled out from the receptacle connector by making the receptacle lock portion and the plug lock portion adjacent in this order in a direction in which the plug connector approaches the receptacle connector as a fitting direction; wherein the lever has a planar plug interference face; the socket connector is provided with a planar socket interference surface; in a fitted state in which the plug connector and the receptacle connector are fitted, the plug interference surface and the receptacle interference surface are disposed so as to face each other, and are disposed between the plug locking portion and the rotation axis of the lever as viewed in an axial direction of the rotation axis of the lever; in the fitting state, the rotation axis of the lever is arranged on the opposite side of the operation portion as viewed in the axial direction so as to sandwich a neutral line that divides a receptacle housing space of the plug connector body into two parts in a direction orthogonal to the fitting direction; when the plug connector is inclined relative to the embedded form of the socket connector, the plug interference surface and the socket interference surface are contacted with each other, so that the embedded form is prevented from being inclined.

Preferably, in the fitted state, the rotation axes of the plug lock portion and the lever are positionally offset in the orthogonal direction as viewed in the axial direction.

Preferably, in the fitted state, the plug lock portion is disposed between the bisector and the operating portion in the orthogonal direction as viewed in the axial direction.

Preferably, in the fitting state, the plug interference surface and the socket interference surface are arranged so as to be orthogonal to the fitting direction.

Preferably, in the fitted state, the plug interference surface and the receptacle interference surface are arranged so as to intersect a straight line connecting the plug lock portion and a rotation axis of the lever, as viewed in the axial direction.

Preferably, in the fitted state, the socket lock portion is line-symmetrical with respect to the bisector as viewed in the axial direction.

Preferably, the receptacle connector further includes: a base having a plate thickness direction parallel to the fitting direction; a socket housing that extends in a cylindrical shape from the base in a pull-out direction opposite to the fitting direction; wherein the socket locking part is formed to protrude from the base in the pull-out direction.

Preferably, the receptacle lock portion has, as viewed in the axial direction, two receptacle lock side surfaces facing the orthogonal direction; wherein each receptacle lock side surface is formed with a lock receiving recess for receiving the plug lock portion.

Preferably, the receptacle lock portion is formed to be wider in the orthogonal direction as it goes toward the pull-out direction as viewed in the axial direction.

Effects of the invention

According to the present invention, the fitting state of the plug connector to the receptacle connector can be stabilized.

Drawings

Fig. 1 is a perspective view showing a state of engagement of a lever connector.

Fig. 2 is a perspective view showing a state before the lever connector is fitted.

Fig. 3 is a perspective view of the lever connector before mating from another angle.

Fig. 4 is an exploded oblique view of the plug connector.

Figure 5 is a side cross-sectional view of the plug connector with the lever inverted to the locked position.

Fig. 6 is an exploded oblique view of the receptacle connector.

Fig. 7 is a side view of the receptacle connector.

Fig. 8 is an explanatory view of the lever connector fitting operation.

Fig. 9 is an explanatory view of the lever connector fitting operation.

Fig. 10 is an explanatory view of the lever connector fitting operation.

Fig. 11 is a simplified diagram of fig. 2 of patent document 1.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described with reference to fig. 1 to 10.

Fig. 1 shows a state in which the lever connector 1 is fitted, and fig. 2 and 3 show a state before the lever connector 1 is fitted. As shown in fig. 1 to 3, the lever connector 1 includes a plug connector 2 and a receptacle connector 3.

The plug connector 2 includes a plug connector body 5 attached to an end of the cable 4, and a lever 6 rotatably supported by the plug connector body 5.

The receptacle connector 3 is attached to an outer wall surface of a servo motor not shown.

By fitting the plug connector 2 to the receptacle connector 3, the plurality of conductors housed in the cable 4 are electrically connected to the control board of the servo motor.

The target object of the lever connector 1 is not limited to a fixed servomotor, and may be a motor other than a servomotor or various electronic devices including a rotation detector.

(definition of orientation)

Here, referring to fig. 1 to 3, an "insertion/removal direction", a "rotational axial direction", and an "axis orthogonal direction (orthogonal direction)" are defined. The plugging direction, the rotating axial direction and the axis orthogonal direction are mutually orthogonal.

The insertion and extraction direction is a direction in which the plug connector 2 is inserted and extracted into and from the receptacle connector 3. The insertion/removal direction includes a lower direction as a fitting direction and an upper direction as a removal direction. The lower side is a direction in which the plug connector 2 approaches the receptacle connector 3 when the plug connector 2 is fitted to the receptacle connector 3. The upper side is the opposite direction of the lower side. The lower and upper portions are terms for convenience of explanation, and are not intended to limit the form of the lever-type connector 1 in use.

The rotational axis direction is an extending direction of a rotational axis 6C of the lever 6, and the lever 6 is rotatably supported by the plug connector body 5. Hereinafter, a direction toward the inside of the plug connector body 5 along the rotational axial direction is referred to as an axially inner direction or simply an inner direction, and a direction toward the outside of the plug connector body 5 is referred to as an axially outer direction or simply an outer direction.

The axis orthogonal direction is a direction orthogonal to the insertion/removal direction and the rotational axis. In the present embodiment, the cable 4 is drawn out from the plug connector body 5 in the direction orthogonal to the axis. However, the cable 4 may be led out from the plug connector body 5 in the inserting and extracting direction or the rotational axis direction. The orthogonal-axis direction includes a rear direction as a direction of viewing the cable 4 from the plug connector 2 and a front direction as a direction of viewing the plug connector 2 from the cable 4.

Although the above-described inserting/removing direction, rotational axis direction, and axis orthogonal direction are mainly defined based on the structure of the plug connector 2, these directions will be used in the description of the structure of the receptacle connector 3. Therefore, the direction in which the rotation axis 6C of the lever 6 extends can be explained by taking the rotation axis direction of the receptacle connector 3 as an example, and the lever 6 has the plug connector 2 fitted to the receptacle connector 3.

(plug connector 2)

Next, the plug connector 2 will be described with reference to fig. 4 and 5. The cross-sectional side view shown in fig. 5 is a cross-section obtained by dividing one arm 33 of the lever 6 into two parts in the plate thickness direction.

As described above, the plug connector 2 is constituted by the plug connector body 5 and the lever 6.

(plug connector 2: plug connector body 5)

As shown in fig. 4, the plug connector body 5 includes: a plurality of plug contacts 10, a plug contact holder 11, a plug housing 12, and a cable holder 13.

The plurality of plug contacts 10 are formed by punching and bending a metal plate made of copper or a copper alloy. The plurality of plug contacts 10 are held by a plug contact holder 11 made of insulating resin, and are arranged in a row in the rotational axis direction at a predetermined interval.

The plug housing 12 is made of insulating resin and is formed in a box shape having a socket receiving space 14 opened at a lower side. That is, the plug housing 12 has: a front end plate 12A, a rear end plate 12B, two side plates 12C, and a top plate 12D. The front plate portion 12A and the rear plate portion 12B define a receptacle housing space 14 in the direction orthogonal to the axis. The side plates 12C define a receptacle housing space 14 in the rotational axial direction. The top plate 12D defines a receptacle housing space 14 in the insertion/removal direction.

The front end plate portion 12A has a front end inner surface 15 facing the receptacle housing space 14. The rear end plate portion 12B has a rear end inner surface 16 facing the receptacle housing space 14. The front end inner surface 15 and the rear end inner surface 16 are both planes orthogonal to the axis orthogonal direction, and face each other in the axis orthogonal direction. In the side view of fig. 5, a bisector 17 that divides the volume of the receptacle housing space 14 into two in the direction orthogonal to the axis is shown. Specifically, the bisector 17 is located between the front end inner surface 15 and the rear end inner surface 16 in the orthogonal axis direction, and is located at an equal distance from the front end inner surface 15 and the rear end inner surface 16 in the orthogonal axis direction. In the side view shown in fig. 5, the bisector 17 is a straight line extending in the inserting and extracting direction.

In the case where at least one of the front end inner surface 15 and the rear end inner surface 16 is a curved surface, the neutral line 17 is defined by a neutral plane that divides the volume of the receptacle housing space 14 into two parts in the direction orthogonal to the axis. The bisecting plane is a plane orthogonal to the axis orthogonal direction.

Returning to fig. 4, a lever locking portion 20 for pressing down the lever 6 to be fixed is formed in the front end plate portion 12A.

In the rear end plate portion 12B, a cable insertion hole 21 into which the end portion 4A of the cable 4 is inserted is formed. In addition, the plurality of covered electric wires included in the cable 4 are not depicted.

Each side plate 12C has a rotary shaft 22 for rotatably holding the lever 6 to the plug housing 12. Each of the rotary shafts 22 is formed to protrude in a cylindrical shape outward from each of the side plate portions 12C. Each rotary shaft 22 has a rotation axis 23 as a cylindrical center axis. This rotation axis 23 is the rotation axis 6C shown in fig. 1 to 3. As shown in fig. 5, the rotation axis 23 of each rotation shaft 22 is disposed away from the center dividing line 17 and between the center dividing line 17 and the rear end plate portion 12B. The rotation axis 23 of each rotation shaft 22 is disposed close to the top plate 12D.

Returning to fig. 4, the cable holder 13 fixes the cable 4 inserted into the cable insertion hole 21 of the plug housing 12 so as not to move in the direction orthogonal to the axis.

(plug connector 2: rod 6)

As further shown in fig. 4, the lever 6 is configured to include: a lever body 30, and a locking spring 31.

The lever main body 30 is composed of a lever base 32, two arms 33, and an operation portion 34.

The stem base 32 extends in the rotational axial direction.

Each arm 33 is formed to protrude from both ends of the lever base 32 in the rotational axial direction. Each arm 33 extends in a direction orthogonal to the rotational axis direction. In each arm 33, a bearing hole 35 into which each rotation shaft 22 is inserted is formed.

In this manner, the lever body 30 is formed into a U-shape that opens toward the rotation axis 23 by including the lever base 32 and the two arms 33.

The operation portion 34 is formed to protrude from the lever base 32 for allowing a user who operates the lever type connector 1 to easily operate the lever 6. The operation unit 34 may be omitted. In this case, the lever base 32 is used as a substitute for the operation portion 34 when the user is operating the lever 6.

The respective arms 33 will be described in detail below. First, in fig. 5, a "lock direction" and an "unlock direction" are defined. The locking direction is a direction in which the lever 6 is rotated when the plug connector 2 is fitted to the receptacle connector 3. The unlocking direction is a direction opposite to the locking direction, and is a direction in which the lever 6 is rotated when the plug connector 2 is pulled out from the receptacle connector 3.

Fig. 5 shows the lever 6 in the fitted state of the lever connector 1. As a result of the lever 6 being pushed down in the locking direction in the fitted state of the lever connector 1, the operating portion 34 and the bearing hole 35 are at the same height in the insertion and extraction direction. Hereinafter, in describing the respective arms 33, for convenience of description, the form of the lever 6 in the fitted state of the lever connector 1 is taken as a reference in principle.

As shown in fig. 5, each arm 33 includes: an arm body 40, and a plug lock portion 41. The arm body 40 is a portion extending in the orthogonal axis direction. The arm body 40 extends from the lever base 32 toward the bearing hole 35. The plug lock portion 41 is disposed below the arm body 40, and is a portion protruding from the arm body 40 in the locking direction. Therefore, in the fitted state of the lever connector 1, the plug lock portion 41 is located below the rotation axis 23.

As shown in fig. 5, the operation portion 34, the plug lock portion 41, the center parting line 17, and the rotation axis 23 (the rotation shaft 22, the bearing hole 35) are arranged in this order in the axis orthogonal direction. Therefore, the rotation axis 23 and the plug lock portion 41 are disposed at a positional deviation in the axis orthogonal direction and are distant from each other in the axis orthogonal direction, for example. The rotation axis 23 and the plug lock portion 41 are arranged on opposite sides in the axis orthogonal direction so as to sandwich the neutral line 17. The rotation axis 23 is arranged on the opposite side of the operation portion 34 in the axis orthogonal direction so as to sandwich the neutral line 17. The plug lock portion 41 is disposed between the operation portion 34 and the neutral line 17 in the orthogonal axis direction.

The arm body 40 has: a plug first interference surface 42 (plug interference surface), and a retreat inclined surface 43. The plug first interference surface 42 and the retreat inclined surface 43 are smoothly continuous with each other in the orthogonal direction and both face downward. The plug first interference surface 42 is formed between the operation portion 34 and the rotation axis 23 in the axis orthogonal direction. The retreat inclined surface 43 is formed on the opposite side of the operation portion 34 in the axis orthogonal direction so as to sandwich the rotation axis 23. The plug first interference surface 42 and the retreat inclined surface 43 are connected to each other directly below the rotation axis 23.

The plug first interference surface 42 is planar and faces in the locking direction. In the present embodiment, the plug first interference surface 42 is orthogonal to the insertion and extraction direction. The plug first interference surface 42 is formed to cross the neutral line 17 in the orthogonal axis direction. That is, the midline 17 intersects the plug first interference surface 42.

The retreat inclined surface 43 has a curved surface shape projecting in a direction away from the bearing hole 35, and extends from the plug first interference surface 42 in the lock direction.

The plug lock portion 41 has: a plug second interference surface 44, and a lock-effecting surface 45. The plug second interference surface 44 and the lock execution surface 45 are continuous with each other in the inserting and extracting direction and both face rearward. The plug second interference surface 44 and the lock execution surface 45 are both disposed between the operation portion 34 and the neutral line 17 in the orthogonal axis direction.

The plug second interference surface 44 is formed to extend downward from the front end of the plug first interference surface 42. Specifically, the plug second interference surface 44 is formed so as to be slightly inclined rearward with respect to the center line 17 as going downward.

The lock execution surface 45 extends downward from the lower end of the plug second interference surface 44, and is formed so as to be curved in an arc shape so as to protrude rearward.

Returning to fig. 4, the lock spring 31 is formed by punching and bending a metal plate, and is provided on the lever base 32. When the lever 6 is pressed down in the locking direction, the lock spring 31 engages with the lever lock portion 20 of the plug connector body 5, thereby preventing the lever 6 from rotating in the unlocking direction. Further, when the lock spring 31 itself is operated to release the locked state between the lock spring 31 and the lever lock portion 20, the lever 6 is allowed to rotate in the unlocking direction.

(socket connector 3)

Next, the receptacle connector 3 will be described with reference to fig. 6 and 7.

As shown in fig. 6, the receptacle connector 3 includes: a plurality of socket contacts 50, a socket contact carrier 51, a socket body 52, and a sealing member 53.

The plurality of socket contacts 50 are formed by punching and bending a copper or copper alloy metal plate. The plurality of socket contacts 50 are arranged in two rows at a predetermined pitch in the rotational axial direction by being held by a socket contact holder 51 made of insulating resin.

The socket body 52 is made of aluminum alloy or lead alloy, and includes: a socket base 54 (base), a socket housing 55, and two socket locking portions 56.

The socket base 54 is a flat plate having a plate thickness direction parallel to the insertion and extraction direction, and has a tray insertion opening 57.

The socket housing 55 is formed to extend in a cylindrical shape upward from the periphery of the tray insertion opening 57 of the socket base 54. The socket contact holder 51 is inserted and held in the socket housing 55. In the outer peripheral surface 55A of the receptacle housing 55, a seal member mounting groove 58 to which the seal member 53 is mounted is formed.

The two receptacle lock portions 56 are arranged in the rotational axial direction so as to sandwich the receptacle housing 55 and be opposite to each other. The two receptacle locking portions 56 are arranged to be rotationally axially distant from the receptacle housing 55. The two receptacle lock portions 56 are identical in shape to each other.

Each socket locking portion 56 is formed to protrude upward from the socket base 54. As shown in fig. 7, each of the socket locking portions 56 is formed so as to be line-symmetrical with respect to the central line 17. Each of the receptacle lock portions 56 is formed to be wider in the orthogonal-to-axis direction as going upward. Each socket locking portion 56 has a general shape like a wine glass. Note that, for convenience of explanation, the sealing member 53 and the receptacle housing 55 are not depicted in fig. 7.

With continued reference to fig. 7, each receptacle lock 56 has: a receptacle first interference surface 60 (receptacle interference surface), and two receptacle locking side surfaces 61.

The socket first interference surface 60 is planar and faces upward. In the present embodiment, the receptacle first interference surface 60 is orthogonal to the insertion and extraction direction. The receptacle first interference surface 60 spans the midline 17 and extends in an axially orthogonal direction.

The two receptacle lock side surfaces 61 extend downward from both ends of the receptacle first interference surface 60 in the axial orthogonal direction, and are forward and rearward. That is, both receptacle lock sides 61 face in the orthogonal axis direction. Each receptacle lock side 61 has: a socket second interference surface 62, and a lock receiving curved surface 63.

The socket second interference surface 62 is planar and extends downward from an end of the socket first interference surface 60 in the orthogonal axis direction. The second interference surface 62 of the receptacle is inclined so as to approach the center parting line 17 as it goes downward.

The lock receiving curved surface 63 is formed below the second socket interference surface 62 and is curved in an arc shape so that the center line 17 is convex. Therefore, it can be said that in each receptacle lock side surface 61, a lock receiving recess 64 defined by the lock receiving curved surface 63 is formed. The lock-receiving recess 64 is formed so as to be recessed toward the dividing line 17.

(operation)

Next, the operation of the lever connector 1 will be described with reference to fig. 8 to 10. In each drawing, the servomotor 70 to which the receptacle connector 3 is attached is shown by a two-dot chain line. For convenience of explanation, fig. 8 to 10 show a cross section in which one arm 33 of the lever 6 is divided into two parts in the plate thickness direction, as in fig. 5.

Fig. 8 shows a state in which the plug connector 2 and the receptacle connector 3 are opposed to each other in the insertion/removal direction in order to fit the plug connector 2 to the receptacle connector 3. As shown in fig. 8, in this relative state, the lever 6 is maintained at the unlock position where the operation portion 34 is located above the plug connector body 5.

When the plug connector 2 is moved toward the receptacle connector 3 from this opposing state, first, the plug housing 12 of the plug connector body 5 of the plug connector 2 is seated on the sealing member 53 of the receptacle connector 3. In this state, the lever 6 is rotated in the locking direction by pressing the operation portion 34 downward with a finger. As a result, as shown in fig. 9, the lock-execution surface 45 of the plug lock portion 41 of the lever 6 of the plug connector 2 contacts the receptacle second interference surface 62 of the receptacle lock portion 56 of the receptacle connector 3, thereby preventing the lever 6 from further rotating in the locking direction.

Subsequently, the operation unit 34 is pressed downward with the finger. Since the lever 6 is prevented from rotating in the locking direction, the force pressing the operating portion 34 downward is a driving force directly moving the plug connector 2 downward. By this driving force, the plug connector 2 moves further downward along with the elastic deformation of the seal member 53. Thereby, the receptacle housing 55 shown in fig. 6 is received in the receptacle receiving space 14 shown in fig. 4. Returning to fig. 9, when the plug connector 2 moves downward, the lock execution surface 45 of the plug lock portion 41 moves downward while contacting the receptacle lock side surface 61 of the receptacle lock portion 56. Here, since the receptacle lock side surface 61 is inclined so as to be closer to the central line 17 as it goes downward, the lever 6 slightly rotates in the lock direction when the plug connector 2 moves downward.

Finally, when the plug housing 12 of the plug connector 2 and the receptacle housing 55 of the receptacle connector 3 come into contact in the inserting and extracting direction, the plug connector 2 is prevented from moving further downward. At the same time, as shown in fig. 10, the plug lock portion 41 is accommodated in the lock receiving recess 64. Thereby, the receptacle lock portion 56 and the plug lock portion 41 are adjacent in this order in the downward direction, and the plug connector 2 is prevented from being pulled out from the receptacle connector 3.

At this time, the lock spring 31 of the lever 6 shown in fig. 4 is engaged with the lever lock portion 20 of the plug housing 12, thereby preventing the lever 6 from further rotating in the unlocking direction. Thereby, the lever 6 is maintained in the locked position shown in fig. 10. By maintaining the lever 6 at the lock position, the lever connector 1 is brought into the fitted state.

In this fitted state, the plug first interference surface 42 and the receptacle first interference surface 60 face each other with a slight gap in the insertion/removal direction. Likewise, the plug second interference surface 44 and the receptacle second interference surface 62 oppose each other with a slight gap. The lock execution surface 45 of the plug lock portion 41 is in contact with the lock receiving curved surface 63 of the receptacle lock portion 56. Here, the plug lock portions 41 of the respective arms 33 are elastically deformed in a direction away from the rotation axis 23 by physical interference between the plug lock portions 41 and the lock receiving recesses 64. The lock execution surface 45 of the plug lock portion 41 strongly presses the lock receiving curved surface 63 of the receptacle lock portion 56 by the restoring force corresponding to the elastic deformation.

In the fitting state shown in fig. 10, when the fitting form of the plug connector 2 with respect to the receptacle connector 3 is distorted, the plug first interference surface 42 and the receptacle first interference surface 60 are brought into contact with each other, thereby preventing the fitting form from being further distorted. Similarly, when the fitting form of the plug connector 2 with respect to the receptacle connector 3 is skewed, the fitting form is prevented from being skewed further by bringing the plug second interference surface 44 and the receptacle second interference surface 62 into contact with each other. Therefore, even when the contact portions of the plug connector 2 and the receptacle connector 3 are worn due to vibration or damage between the plug connector 2 and the receptacle connector 3 becomes large, for example, the stable fitting state of the plug connector 2 to the receptacle connector 3 can be maintained by the above configuration.

In order to remove the plug connector 2 from the receptacle connector 3, the lock spring 31 of the lever 6 shown in fig. 4 is operated to release the engagement state between the lock spring 31 and the lever lock portion 20, and the lever 6 is rotated in the unlocking direction. Thereby, as shown in fig. 10, the plug lock portion 41 is pulled out from the lock receiving recess 64, and therefore, the plug connector 2 can be pulled out upward from the receptacle connector 3.

The preferred embodiments of the present invention have been described above, and the above embodiments have the following features.

As shown in fig. 1 to 7, the lever connector 1 includes: a plug connector 2 including a plug connector body 5 and a lever 6, the lever 6 being rotatably supported by the plug connector body 5 and having a plug lock portion 41 and an operation portion 34; and a receptacle connector 3 having a receptacle locking portion 56. As shown in fig. 10, the operation portion 34 of the operation lever 6 prevents the plug connector 2 from being pulled out of the receptacle connector 3 by abutting the receptacle lock portion 56 and the plug lock portion 41 in this order in the vertical direction. The lever 6 has a planar plug first interference surface 42 (plug interference surface). The receptacle connector 3 has a planar receptacle first interference surface 60 (receptacle interference surface). In the fitted state in which the plug connector 2 and the receptacle connector 3 are fitted, the plug first interference surface 42 and the receptacle first interference surface 60 are disposed so as to face each other, and are disposed between the plug lock portion 41 and the rotation axis 23 of the lever 6 as viewed in the axial direction of the rotation axis 23 of the lever 6. In the fitted state of the lever connector 1, the rotation axis 23 of the lever 6 is arranged on the opposite side of the operation portion 34 as viewed in the rotation axis direction, so as to sandwich the neutral line 17, and the neutral line 17 divides the receptacle housing space 14 of the plug connector body 5 into two parts in the orthogonal direction. When the fitting form of the plug connector 2 to the receptacle connector 3 is skewed, the plug first interference surface 42 and the receptacle first interference surface 60 contact each other, thereby preventing the fitting form from being skewed further. According to the above configuration, compared to the case where the rotation axis 23 is arranged on the bisector 17, the plug first interference surface 42 and the receptacle first interference surface 60 can be greatly secured, and therefore, the effect of preventing the fitting form from being distorted due to the plug first interference surface 42 and the receptacle first interference surface 60 can be highly achieved.

In the fitted state of the lever connector 1, the plug lock portion 41 and the rotation axis 23 of the lever 6 are positionally displaced in the direction orthogonal to the axis as viewed in the rotation axis direction. Specifically, in the fitted state of the lever connector 1, the plug lock portion 41 is disposed between the center parting line 17 and the operating portion 34 as viewed in the rotational axial direction. According to the above configuration, since the plug first interference surface 42 of the lever 6 can cover the receptacle first interference surface 60 of the receptacle connector 3 over a wide area, it is possible to further achieve an effect of preventing the fitting form from being distorted due to the plug first interference surface 42 and the receptacle first interference surface 60.

In the fitted state of the lever connector 1, the plug first interference surface 42 and the receptacle first interference surface 60 are arranged so as to be orthogonal to the fitting direction.

As shown in fig. 10, in the fitted state of the lever connector 1, the plug first interference surface 42 and the receptacle first interference surface 60 are arranged so as to intersect a straight line P connecting the plug lock portion 41 and the rotation axis 23 of the lever 6 as viewed in the rotational axial direction.

In the fitted state of the lever connector 1, the receptacle lock portion 56 is line-symmetrical with respect to the center line 17 as viewed in the rotational axial direction. According to the above configuration, the plug connector 2 can be fitted to the receptacle connector 3 by reversing the direction of the plug connector 2 in the direction orthogonal to the axis.

As shown in fig. 6 and 7, the receptacle connector 3 further includes: a socket base 54 (base) and a socket housing 55, the socket base 54 having a plate thickness direction parallel to the lower side, the socket housing 55 extending in a cylindrical shape from the socket base 54 upward. The socket lock 56 is formed to protrude upward from the socket base 54.

As shown in fig. 7, the receptacle lock portion 56 has two receptacle lock side surfaces 61 facing the direction orthogonal to the axis when viewed in the rotational axial direction. In each receptacle lock side surface 61, a lock receiving recess 64 that receives the plug lock portion 41 is formed.

The receptacle lock portion 56 is formed to be wider in the direction orthogonal to the axis as viewed in the rotational axial direction as going upward.

Further, in Japanese patent laid-open publication No. 2018-206517, a diamond-type locking member is disclosed. However, since the cam follower of patent document 1 is a cylinder, it is common technical knowledge that the cam follower cannot be replaced with the locking member.

The present application claims priority on the basis of japanese patent application No. 2019-160346 filed on 9/3 in 2019, and the entire contents of the patent application are incorporated herein.

Description of the reference numerals

1: lever-type connector

2: plug connector

3: socket connector

4: cable with a protective layer

4A: end part

5: plug connector body

6: rod

6C: axis of rotation

10: plug contact

11: plug contact bracket

12: plug shell

12A: front end plate

12B: rear end plate part

12C: side plate part

12D: roof board part

13: cable bracket

14: socket accommodating space

15: front end inner face

16: rear end inner face

17: middle branch

20: lever locking part

21: cable insertion hole

22: rotating shaft

23: axis of rotation

30: rod body

31: locking spring

32: pole base

33: arm(s)

34: operation part

35: bearing bore

40: arm body

41: plug locking part

42: first interference surface of plug (plug interference surface)

43: retreating inclined plane

44: second interference surface of plug

45: surface for carrying out locking

50: socket contact

51: socket contact bracket

52: socket body

53: sealing member

54: socket base (base)

55: socket shell

55A: peripheral surface

56: socket locking part

57: bracket insertion opening

58: sealing member mounting groove

60: socket first interference surface (socket interference surface)

61: socket locking side

62: second interference surface of socket

63: lock receiving curved surface

64: lock receiving recess

70: servo motor

P: straight line

Claims

1. A lever-type connector is characterized by comprising:

a plug connector including a plug connector body and a lever rotatably supported by the plug connector body and having a plug locking portion and an operating portion; and

a receptacle connector having a receptacle locking portion;

by operating the operating portion of the lever, when the plug connector is fitted to the receptacle connector, the plug connector is prevented from being pulled out from the receptacle connector by making the receptacle lock portion and the plug lock portion adjacent in this order in a direction in which the plug connector approaches the receptacle connector as a fitting direction; wherein the content of the first and second substances,

the rod has a planar plug interference face;

the socket connector is provided with a planar socket interference surface;

in a fitted state in which the plug connector and the receptacle connector are fitted, the plug interference surface and the receptacle interference surface are disposed so as to face each other, and are disposed between the plug locking portion and the rotation axis of the lever as viewed in an axial direction of the rotation axis of the lever;

in the fitting state, the rotation axis of the lever is arranged on the opposite side of the operation portion as viewed in the axial direction so as to sandwich a neutral line that divides a receptacle housing space of the plug connector body into two parts in a direction orthogonal to the fitting direction;

when the plug connector is inclined relative to the embedded form of the socket connector, the plug interference surface and the socket interference surface are contacted with each other, so that the embedded form is prevented from being inclined.

2. The lever-type connector according to claim 1, wherein in the fitted state, the rotation axes of the plug lock portion and the lever are positionally offset in the orthogonal direction as viewed in the axial direction.

3. The lever-type connector according to claim 2, wherein the plug lock portion is disposed between the neutral line and the operating portion in the orthogonal direction as viewed in the axial direction in the fitted state.

4. The lever-type connector according to any one of claims 1 to 3, wherein in the fitted state, the plug interference surface and the receptacle interference surface are arranged so as to be orthogonal to the fitting direction.

5. The lever-type connector according to any one of claims 1 to 4, wherein in the fitted state, the plug interference surface and the receptacle interference surface are arranged so as to intersect a straight line connecting the plug lock portion and a rotation axis of the lever as viewed in the axial direction.

6. The lever-type connector according to any one of claims 1 to 5, wherein the socket locking portion is line-symmetrical with respect to the neutral line as viewed in the axial direction in the fitted state.

7. The lever-type connector according to any one of claims 1 to 6, wherein the receptacle connector further includes:

a base having a plate thickness direction parallel to the fitting direction;

a socket housing that extends in a cylindrical shape from the base in a pull-out direction opposite to the fitting direction; wherein the content of the first and second substances,

the socket locking portion is formed to protrude from the base in the pull-out direction.

8. The lever-type connector according to any one of claims 1 to 7, wherein the receptacle lock portion, as viewed in the axial direction, has two receptacle lock side surfaces facing the orthogonal direction; wherein the content of the first and second substances,

each receptacle lock side surface is formed with a lock receiving recess for receiving the plug lock portion.

9. The lever-type connector according to any one of claims 1 to 8, wherein the socket lock portion is formed to be wider in the orthogonal direction as going to a pull-out direction opposite to the fitting direction as viewed in the axial direction.