JP6299628B2 - Lever type connector - Google Patents

Description

  The technique disclosed by this specification is related with a lever-type connector.

  2. Description of the Related Art Conventionally, as a lever-type connector for fitting a male and female housing by a lever turning operation, one described in Japanese Patent Application Laid-Open No. 2007-48520 (Patent Document 1 below) is known. This lever-type connector includes a female housing, a male housing, and a lever. The lever is mounted on a lever mounting wall provided in the female housing, and a cam groove is formed in the lever. On the other hand, the male housing is provided with a cam pin with which the cam groove is engaged. The cam pin is provided so as to protrude upward from the upper surface of the female housing.

JP 2007-48520 A

  However, in the above-described lever-type connector, the cam groove is configured to penetrate in the plate thickness direction (direction orthogonal to the rotation direction of the lever), and the pair of engaging walls constituting the cam groove are divided by the cam groove. Therefore, when one engaging wall receives a strong force from the cam pin in accordance with the turning operation of the lever, it easily opens and deforms away from the other engaging wall.

  The lever-type connector disclosed in the present specification is a lever-type connector that engages with the mating connector by engaging with a cam pin provided in the mating connector, and has a plate-like main body portion. A lever that is pivotable between an initial position and a fitting position; and a housing provided with a lever mounting portion on which the lever is mounted. A first engagement wall in which the cam pin is engageable in the process of rotating to the mating position, and a second engagement in which the cam pin is engageable in the process of rotating from the fitting position to the initial position. And a raceway provided between the first engagement wall and the second engagement wall in a form penetrating the main body portion in the plate thickness direction and allowing the cam pin to enter. The lever mounting portion has the first engagement wall at the front. And configured to have a suppressing opening suppressing portion from being deformed to open in a direction away from the second engaging wall by the cam pin engages.

According to such a configuration, since the lever track passes through the main body, the first engagement wall is engaged with the cam pin when the lever is rotated from the initial position to the fitting position. Although it acts to open away from the second engagement wall, the opening deformation of the first engagement wall can be suppressed by the opening suppression portion.
Moreover, since the track of the lever penetrates the main body, both ends of the cam pin can be connected to the mating housing, and the rigidity of the cam pin can be increased. Therefore, even if the cam pin receives a strong force when passing through the lever track and engaging with the first engagement wall, the cam pin can be prevented from being broken.

The lever type connector disclosed by this specification is good also as the following structures.
The lever mounting portion of the housing has an introduction hole for introducing the cam pin into the lever mounting portion. At the initial position, the entrance of the track coincides with the introduction hole and the first engagement wall is In the process of rotating from the initial position to the fitting position, the first engagement wall is aligned with the other side edge of the introduction hole. The opening restraining portion may be configured to be provided at the other side edge portion.
According to such a configuration, when the first engagement wall receives a strong force from the cam pin, the outer edge on the distal end side of the first engagement wall that is most likely to be opened can be supported by the opening suppression portion. The opening of the engagement wall can be efficiently suppressed.

The second engagement wall is provided with an initial lock portion that locks the pivoting operation of the lever at the initial position, and a release protrusion that releases the locked state of the lever by the initial lock portion on the mating connector. The lever mounting portion of the housing has an entry hole for allowing the release protrusion to enter the lever mounting portion, and the opening suppression portion is connected to the introduction hole in the lever mounting portion. It is good also as a structure provided between the said approach holes.
According to such a structure, an opening suppression part can be provided using dead spaces, such as between the introduction hole and entrance hole in a lever mounting part.

The said opening suppression part is good also as a structure which has the arc-shaped surface extended along the outer edge of the said 1st engagement wall.
According to such a configuration, when the first engagement wall is slightly opened, the outer edge of the first engagement wall easily comes into sliding contact with the arcuate surface, and the rotation operation of the lever is not hindered.

  According to the technique disclosed by this specification, it can avoid that a 1st engagement wall opens and deform | transforms away from a 2nd engagement wall by an opening suppression part.

The top view which showed the state before making a lever type connector and a board connector fit. Side view showing the state before the lever connector and board connector are fitted together View of the state after the lever-type connector and board connector have been shallowly fitted, as seen from the back side of the board connector A view of the state where the lever is being rotated from the initial position to the mating position as seen from the back side of the board connector A view of the state after the lever connector and board connector are completely fitted, as seen from the back side of the board connector Sectional drawing which showed the state in which the rotation operation of the lever in the initial position was locked by the initial locking part FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, showing a state where the initial lock portion has run on the release protrusion and the lock is released. FIG. 5 is a cross-sectional view taken along line B-B in FIG. 4, showing a state in which the outer edge on the distal end side of the first engagement wall can be slidably contacted with the arcuate surface of the opening suppression portion. It is CC sectional view taken on the line of FIG. 5, Comprising: Sectional drawing which showed the state which both connectors fitted normally Front view of board connector Rear view of board connector Front view of lever connector Rear view of lever type connector Lever plan view Rear view of lever The figure which looked at the lever from the upper side in the figure in FIG. FIG. 14 is a view of the lever as viewed from the lower side in FIG. FIG. 14 is a view of the lever as viewed from the right side in FIG.

<Embodiment>
The embodiment will be described with reference to the drawings of FIGS. As shown in FIG. 1, the lever-type connector 10 of this embodiment can be fitted with a board connector 50 that is a mating connector. In the following description, the fitting direction of the connectors 10 and 50 is the front-rear direction, the surfaces facing each other are the fitting surfaces, and the fitting surface side is the front side.

  First, the configuration of the board connector 50 will be described. As shown in FIG. 10, the board connector 50 includes a male housing 60 made of synthetic resin and a plurality of male terminals 70 held by the male housing 60.

  The male housing 60 has a hood portion 61 that is configured to open to the front, and a plurality of male terminals 70 are press-fitted on the back wall 62 of the hood portion 61. The male terminal 70 is L-shaped, and one end shown in FIG. 10 is a connection portion with the female terminal, and the other end shown in FIG. 11 is a connection portion with the circuit board. For this reason, after the male terminal 70 penetrates the back wall 62 of the food | hood part 61 and protrudes back, it is set as the form which changes direction at right angle and goes below.

  A cam pin 63 is provided on the inner peripheral upper surface of the hood portion 61 so as to protrude downward. The lower end of the cam pin 63 is connected to the back wall 62 via a reinforcing wall 64 shown in FIG. That is, the cam pin 63 has a double-sided shape in which both ends are connected to the inner peripheral surface of the hood portion 61. Therefore, even if a large force is applied to the cam pin 63, the cam pin 63 does not break. As shown in FIG. 11, a hole 65 for forming the cam pin 63 is provided in the back wall 62 of the hood portion 61, and the rear end of the reinforcing wall 64 is connected to the hole edge of the hole 65. .

  A release protrusion 66 is provided on the side of the cam pin 63. Unlike the cam pin 63, the release protrusion 66 protrudes downward from the inner peripheral upper surface of the hood portion 61 and has a cantilever shape. A hole 67 for forming the release protrusion 66 is provided in the back wall 62 of the hood portion 61. As shown in FIG. 6, the release protrusion 66 is positioned in front of the cam pin 63 in the front-rear direction. Therefore, it is possible to enter the lever connector 10 at an earlier timing than the cam pin 63.

  Next, the configuration of the lever connector 10 will be described. The lever-type connector 10 includes a synthetic resin female housing 20, a synthetic resin lever 30, and female terminals (not shown) housed in the female housing 20. In the female housing 20, a lever mounting portion 22 to which the lever 30 is mounted is provided above the cavity 21 that accommodates the female terminal (see FIG. 12). On the other hand, as shown in FIGS. 15 to 18, the lever 30 has a plate-like main body 31 and a track 32 provided through the main body 31 in the thickness direction. A cam pin 63 can enter the track 32.

  The entrance 33 of the track 32 has a form opening to the side, and has an arc shape from the entrance 33 to the end 34. A shaft hole 35 for pivotally supporting the lever 30 is provided on the side of the end 34 of the track 32. A mounting groove 36 is provided in a region from the outer edge of the main body 31 to the shaft hole 35 through the end 34 of the track 32. The mounting groove 36 is a bottomed groove for mounting the shaft portion 22A provided in the lever mounting portion 22 shown in FIG. In this embodiment, after the shaft portion 22A has entered from the entrance 33 to the end 34 of the track 32, the lever 30 is mounted on the lever mounting portion 22 by being guided to the shaft hole 35 through the mounting groove 36. ing.

  The lever 30 is rotatably mounted on the female housing 20 when the shaft portion 22A is fitted into the shaft hole 35. The lever 30 is rotatable between an initial position shown in FIG. 6 and a fitting position shown in FIG. The main body 31 of the lever 30 includes a first engagement wall 37 in which the cam pin 63 can be engaged in the process of turning the lever 30 from the initial position to the fitting position, and the lever 30 from the fitting position to the initial position. It has the 2nd engagement wall 38 with which the cam pin 63 can be engaged in the process of rotating. The track 32 is formed between the first engagement wall 37 and the second engagement wall 38.

  As shown in FIG. 6, an initial lock portion 39 is provided on the inlet 33 side of the track 32 in the second engagement wall 38. The initial lock portion 39 has a shape extending in a cantilever shape, and can be elastically bent. The tip of the initial lock portion 39 can be locked with the initial lock receiving portion 23 provided inside the lever mounting portion 22. When the tip of the initial lock portion 39 is engaged with the initial lock receiving portion 23, the lever 30 is held at the initial position, and the turning operation of the lever 30 is restricted.

  As shown in FIGS. 1 and 2, the front wall 24 of the lever mounting portion 22 is provided with an introduction hole 25 for introducing the cam pin 63 into the lever mounting portion 22. As shown in FIG. 6, at the initial position, the entrance 33 of the track 32 coincides with the introduction hole 25 and the first engagement wall 37 coincides with one of the side edges 26A and 26B of the introduction hole 25. To do. As can be seen from FIG. 8, in the process in which the lever 30 is rotated from the initial position to the fitting position, the first engagement wall 37 is directed from one side edge portion 26A to the other side edge portion 26B. Yes.

  The lever mounting portion 22 has an entry hole 27 for allowing the release protrusion 66 of the male housing 60 to enter the lever mounting portion 22. When the connectors 10 and 50 are shallowly fitted, the release protrusion 66 enters the lever mounting portion 22 through the entry hole 27 as shown in FIG. As shown in FIG. 7, the tip end of the initial lock portion 39 rides on the release protrusion 66, thereby releasing the locked state between the tip end of the initial lock portion 39 and the initial lock receiving portion 23. It has become so. Therefore, the lever 30 is allowed to rotate, and the lever 30 can be rotated from the initial position toward the fitting position. At this time, the cam pin 63 has entered the entrance 33 of the track 32, and when the lever 30 is rotated, the first engagement wall 37 engages with the cam pin 63, so that the fitting of both the connectors 10 and 50 proceeds. Will do. In addition, the tip of the initial lock portion 39 riding on the release protrusion 66 shifts to the state of riding on the initial lock receiving portion 23, and the initial lock portion 39 returns to the natural state while descending the inclined surface of the initial lock receiving portion 23. Will do.

  As shown in FIG. 9, when the lever 30 reaches the fitting position, the lever lock portion 40 provided in the lever 30 is engaged with the lever lock receiving portion 28 provided in the lever mounting portion 22. The lever 30 is held in the fitting position, and the turning operation of the lever 30 is locked. Further, the inclination correcting portion 41 provided at the tip of the second engagement wall 38 is locked in the rotation direction of the lever 30 with respect to the release protrusion 66, whereby the inclination of the female housing 20 is corrected, and both the connectors 10. , 50 reaches a normal fitting posture.

  Specifically, immediately before the cam pin 63 reaches the end 34 of the track 32, the left side of the female housing 20 comes into contact with the back wall 62 of the hood portion 61 first and the right side of the female housing 20 is the back wall of the hood portion 61. It will be in the state away from the back wall 62 without contacting 62. Here, the right side of the female housing 20 is pushed into the rear wall 62 of the hood portion 61 by the tilt correction portion 41 coming into contact with the release protrusion 66, and the front wall 24 of the lever mounting portion 22 is the rear wall of the hood portion 61. 62 is corrected to a normal fitting posture in contact with the entire width of 62.

  Now, between the introduction hole 25 and the entry hole 27 in the front wall 24 of the lever mounting portion 22, when the first engagement wall 37 is engaged with the cam pin 63, the first engagement wall 37 is the second engagement. An opening suppression portion 29 that suppresses opening in a direction away from the joint wall 38 is provided. The opening suppression portion 29 is provided on the other side edge portion 26 </ b> B of the introduction hole 25.

  A reinforcing wall 29 </ b> B is provided between the introduction hole 25 and the entry hole 27 in addition to the opening suppression portion 29. The reinforcing wall 29 </ b> B is disposed closer to the entrance hole 27 than the opening suppressing portion 29 and is connected to the bottom surface of the lever mounting portion 22 and the front wall 24. Therefore, as shown in FIG. 8, when the opening restraining portion 29 receives a force from the first engagement wall 37 and the other side edge portion 26B receives stress, the stress can be distributed to the reinforcing wall 29B. The other side edge portion 26B can have sufficient strength to withstand the stress from the first engagement wall 37. As a result, the opening suppression effect by the opening suppression unit 29 can be enhanced.

  Moreover, the opening suppression part 29 has the arc-shaped surface 29A extended along the outer edge 37A of the 1st engagement wall 37, as shown in FIG. The arcuate surface 29 </ b> A of the opening restraining portion 29 has a form extending along the outer edge 37 </ b> A of the first engagement wall 37. For this reason, when the first engagement wall 37 is slightly opened while the lever 30 is rotated from the initial position to the fitting position, the outer edge 37A of the first engagement wall 37 is the arcuate surface 29A of the opening suppression portion 29. Therefore, the opening of the first engagement wall 37 can be suppressed without hindering the pivoting operation of the lever 30.

  The present embodiment is configured as described above, and the operation thereof will be described with reference to FIGS. 6 to 9. First, an operation for fitting the lever connector 10 and the board connector 50 will be described. When the female housing 20 is shallowly fitted into the hood portion 61 of the male housing 60, the cam pin 63 enters the lever mounting portion 22 through the introduction hole 25 and the release protrusion 66 enters as shown in FIG. It enters the lever mounting portion 22 through the hole 27. When the fitting is further advanced, as shown in FIG. 7, the cam pin 63 enters the inlet 33 of the track 32 of the lever 30, and the release protrusion 66 pushes the initial lock part 39 toward the main body part 31 side and elastically bends. As a result, the tip of the initial lock portion 39 rides on the release protrusion 66. As a result, the locked state of the initial lock portion 39 and the initial lock receiving portion 23 is released, and the turning operation of the lever 30 is allowed.

  When the operating portion 42 of the lever 30 is pushed in and the lever 30 is rotated from the initial position toward the fitting position, the cam pin 63 moves along the track 32, and the cam pin 63 engages with the first engagement wall 37. Start to join. The cam pin 63 is pulled toward the shaft hole 35 by the cam action due to this engagement, and the fitting of the connectors 10 and 50 proceeds. At this time, the first engagement wall 37 receives a strong force from the cam pin 63 as it engages with the cam pin 63. In particular, in the present embodiment, the first engagement wall 37 and the second engagement wall 38 are both cantilevered and are connected to each other at the end 34 of the track 32. The structure is easy to bend away from the engagement wall 38.

  However, when the first engagement wall 37 starts to receive a strong force from the cam pin 63, the first engagement wall 37 has already shifted from one side edge portion 26A to the other side edge portion 26B, as shown in FIG. Since the outer edge 37A of the first engagement wall 37 is arranged along the arcuate surface 29A of the opening restraining portion 29, the first engagement wall 37 is not opened and deformed. Has been. On the other hand, since both ends of the cam pin 63 are connected to the inner wall of the hood portion 61, the cam pin 63 is not broken by receiving a strong force from the first engagement wall 37.

  When the engagement between the connectors 10 and 50 is advanced by the engagement of the cam pin 63 and the first engagement wall 37 in this way and the lever 30 reaches the engagement position, the cam pin 63 is moved into the track as shown in FIG. The lever 30 is locked at the fitting position when the lever lock portion 40 is engaged with the lever lock receiving portion 28. Further, when the inclination correcting portion 41 is locked to the release protrusion 66, the fitting posture of the connectors 10 and 50 is corrected from the inclined posture to the normal fitting posture, and the male terminal 70 and the female terminal are electrically connected. It will be in a connected state and will be a regular fitting.

  Next, the removal work of the connectors 10 and 50 will be briefly described. First, the lever lock portion 40 is pushed down with a finger to release the locked state with the lever lock receiving portion 28, and the operation portion 42 of the lever 30 is pulled forward to rotate the lever 30 from the fitting position toward the initial position. Move. During this time, the cam pin 63 engages with the second engagement wall 38, and the cam pin 63 is pushed away from the shaft hole 35 by the cam action due to this engagement. On the other hand, the initial lock portion 39 is bent and deformed toward the main body portion 31 when its tip rides on the inclined surface of the initial lock receiving portion 23, and returns to the natural state by getting over the initial lock receiving portion 23. As a result, as shown in FIG. 6, the initial lock portion 39 is engaged with the initial lock receiving portion 23, the lever 30 is held at the initial position, and the rotation operation of the lever 30 is restricted. By pulling the connectors 10 and 50 away from each other by hand, the detachment of the connectors 10 and 50 is completed.

  As described above, in this embodiment, since the track 32 of the lever 30 penetrates the main body 31, the first engagement wall 37 is used when the lever 30 is rotated from the initial position to the fitting position. Is engaged with the cam pin 63 to act to open away from the second engagement wall 38, but the opening restraining portion 29 can suppress the opening deformation of the first engagement wall 37.

  Further, since the track 32 of the lever 30 penetrates the main body 31, both end portions of the cam pin 63 can be connected to the mating housing (the inner wall of the hood portion 61 of the male housing 60). The rigidity of 63 can be increased. Therefore, even if the cam pin 63 receives a strong force when passing through the track 32 of the lever 30 and engaging with the first engagement wall 37, the cam pin 63 can be prevented from being broken.

The lever mounting portion 22 of the housing (female housing 20) has an introduction hole 25 for introducing the cam pin 63 into the lever mounting portion 22, and the inlet 33 of the track 32 coincides with the introduction hole 25 at the initial position. One engaging wall 37 is coincident with one side edge 26A of both side edges of the introduction hole 25, and the first engaging wall 37 is moved to one side edge in the process of rotating from the initial position to the fitting position. The opening 26 </ b> A may be configured to be provided at the other side edge 26 </ b> B from the portion 26 </ b> A toward the other side edge 26 </ b> B.
According to such a configuration, when the first engagement wall 37 receives a strong force from the cam pin 63, the outer edge 37 </ b> A on the distal end side of the first engagement wall 37 that is most likely to be opened can be supported by the opening suppression portion 29. Therefore, the opening of the first engagement wall 37 can be efficiently suppressed.

The second engagement wall 38 is provided with an initial lock portion 39 for restricting the pivoting operation of the lever 30 at the initial position, and the release protrusion 66 for releasing the restricted state of the lever 30 by the initial lock portion 39 is provided at the mating connector. The lever mounting portion 22 of the housing has an entry hole 27 for allowing the release projection 66 to enter the lever mounting portion 22, and the opening suppression portion 29 is an introduction hole 25 in the lever mounting portion 22. It is good also as a structure provided between the and the entrance hole 27. FIG.
According to such a configuration, the opening suppression portion 29 can be provided using a dead space such as between the introduction hole 25 and the entry hole 27 in the lever mounting portion 22.

The opening restraining portion 29 may have an arcuate surface 29 </ b> A that extends along the outer edge 37 </ b> A of the first engagement wall 37.
According to such a configuration, when the first engagement wall 37 is slightly opened, the outer edge 37A of the first engagement wall 37 easily comes into sliding contact with the arcuate surface 29A, and hinders the rotation operation of the lever 30. There is no.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various aspects.
(1) Although the opening restraining portion 29 is provided in the other side edge portion 26B of the introduction hole 25 in the above embodiment, the opening restraining portion is arranged on one side of the introduction hole 25 depending on the position of the cam pin, the shape of the track, or the like. You may provide in edge part 26A, and may provide in back (inner side of lever mounting part 22) rather than the other side edge part 26B.

  (2) Although the opening suppression portion 29 is provided between the introduction hole 25 and the entry hole 27 in the above embodiment, the opening suppression portion can be provided even in a lever-type connector that is not provided with an entry hole.

  (3) Although the outer edge 37A of the first engagement wall 37 can be slidably contacted with the arcuate surface 29A of the opening restraining portion 29 in the above embodiment, the opening restraining portion may not be configured to be received by the surface. It is good also as a structure received by.

DESCRIPTION OF SYMBOLS 10 ... Lever type connector 20 ... Female housing 22 ... Lever mounting part 25 ... Introduction hole 26A ... One side edge part 26B ... The other side edge part 27 ... Entrance hole 29 ... Opening suppression part 29A ... Arc-shaped surface 30 ... Lever 31 ... Main body 32 ... Track 33 ... Inlet 37 ... First engagement wall 37A ... Outer edge 38 ... Second engagement wall 39 ... Initial lock part 50 ... Board connector (mating connector)
63 ... Cam pin 66 ... Release protrusion

Claims (4)

A lever-type connector that engages with the mating connector by engaging with a cam pin provided on the mating connector,
A lever having a plate-like main body and rotatable between an initial position and a fitting position;
A housing provided with a lever mounting portion on which the lever is mounted;
The body portion of the lever is cantilevered and can be bent in a direction perpendicular to the plate thickness direction of the body portion, and the cam pin can be engaged in the process of rotating from the initial position to the fitting position. A first engaging wall, a second engaging wall in which the cam pin can be engaged in the process of rotating from the fitting position to the initial position, and the main body portion penetrating in the plate thickness direction. A track provided between the first engagement wall and the second engagement wall in a form and capable of entering the cam pin;
The lever mounting portion of the housing includes a front wall that contacts the entire rear wall of the hood portion provided in the mating connector when the mating connector is properly fitted to the mating connector, and the rear wall from the back wall. An opening which is provided in a form extending to the rear side opposite to the wall side and which prevents the first engagement wall from opening and deforming in a direction away from the second engagement wall by engaging with the cam pin. A lever-type connector with a restraining part. The front wall of the lever mounting portion of the housing is provided with an introduction hole for introducing the cam pin into the lever mounting portion. In the initial position, the entrance of the track coincides with the introduction hole and the first hole One engagement wall coincides with one side edge of both side edges of the introduction hole, and the first engagement wall is moved to the one side in the process of rotating from the initial position to the fitting position. The lever-type connector according to claim 1, wherein the opening suppression portion is provided at the other side edge portion from the edge portion toward the other side edge portion. The second engagement wall is provided with an initial lock portion that locks the pivoting operation of the lever at the initial position, and a release protrusion that releases the locked state of the lever by the initial lock portion on the mating connector. Is provided,
The lever mounting part of the housing has an entry hole for allowing the release protrusion to enter the lever mounting part, and the opening restraining part is between the introduction hole and the entry hole in the lever mounting part. The lever type connector according to claim 2, wherein the lever type connector is provided.   4. The lever-type connector according to claim 1, wherein the opening suppression portion has an arcuate surface extending along an outer edge of the first engagement wall. 5.

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