JP6498080B2 - connector - Google Patents

Description

  The technology disclosed by this specification is related with the connector which can be fitted with a lever-type connector.

  For example, a connector described in JP-A-2015-72871 (Patent Document 1 below) is known as a connector that can be fitted to a lever-type connector. This connector has a hood portion into which a lever-type connector is fitted, and a substantially cylindrical cam pin protruding toward the inside of the hood portion is provided on the ceiling wall of the hood portion.

  On the other hand, the lever-type connector is rotatably mounted with a lever having a cam groove that engages with the cam pin of the hood portion. When the lever is rotated, the connector and the lever-type connector are adapted to be attracted to each other by the cam action of the cam pin and the cam groove.

JP-A-2015-72871

  By the way, in the above connector, since the substantially cylindrical cam pin is configured to be supported only on the ceiling wall of the hood portion, when the cam pin receives a strong force from the wall surface of the cam groove as the lever rotates, Stress concentrates on the base of the cam pin. For this reason, when the fitting resistance between the connector and the lever-type connector increases and stress concentrates on the base portion of the cam pin, the cam pin may be damaged as the base portion of the cam pin is sheared by the lever. .

  The present specification discloses a technique for preventing the cam pin from being damaged.

  The technology disclosed in the present specification is a connector that can be fitted to a lever-type connector that supports a lever so as to be displaceable, and has a fitting portion into which the lever-type connector can be fitted. A resin-made housing in which the lever-type connector and the fitting portion are engaged by a cam action when the lever is engaged with the columnar cam pin projecting from the lever, and the lever is engaged with the cam pin. And a reinforcing portion integrally connected to the position on the opposite side of the cam pin base and the fitting portion.

  According to the connector having such a configuration, the columnar cam pins are in a doubly supported form supported on both sides of the position where the lever is engaged. That is, when a force is applied to the cam pin, the stress is distributed to both sides of the position where the lever of the cam pin is engaged. For example, the columnar cam pin is supported only at one end, and the stress is concentrated only at one end of the cam pin. Compared with a thing, it can suppress that a cam pin is sheared and damaged.

The connector disclosed by this specification is good also as the following structures.
The fitting portion is formed in a hood shape into which the lever-type connector is fitted, and the cam pin is formed to protrude from a base wall extending along a fitting direction in the fitting portion, The reinforcing portion may be configured to extend in the fitting direction between the protruding end portion of the cam pin and the back wall on the back side in the fitting direction of the fitting portion.

  According to such a configuration, since the reinforcing portion is formed to extend in the fitting direction from the protruding end portion of the cam pin toward the inner wall of the fitting portion, for example, the reinforcing portion is fitted from the protruding end portion of the cam pin. Compared with the case where the terminal portion is formed to extend toward the wall portion facing the base wall of the joint portion, the space for arranging the terminals can be saved without interfering with the arrangement space of the terminals.

The reinforcing portion may be formed wider than a portion of the cam pin where the lever engages, and the reinforcing portion may have a slit.
If the reinforcing part is formed wide in order to improve the strength of the reinforcing part, the thickness of the resin in the reinforcing part increases, so that deformation may occur in the reinforcing part after molding, so-called sink may occur, and the reinforcing part is deformed. Then, with this, there is a dislike that the cam pin is deformed.

  However, according to the above configuration, since the slit is formed in the reinforcing portion and the thickness of the reinforcing portion can be prevented from increasing, the sink of the reinforcing portion is suppressed, and the cam pin caused by the sink in the reinforcing portion can be prevented. Deformation can be prevented.

  According to the technique disclosed by this specification, it can prevent that a cam pin breaks.

Front view showing the board connector partially cut away Rear view AA line sectional view of FIG. BB sectional view of FIG. CC sectional view of FIG. Front view of lever connector Rear view The top view which shows the state before the connector for a board and a lever type connector before fitting Side view A view of the board connector and lever-type connector in a shallow fit, as seen from the back side of the board connector View of board connector and lever-type connector after mating is viewed from the back side of board connector DD sectional view of FIG. EE sectional view of FIG.

<Embodiment>
An embodiment of the technology disclosed in this specification will be described with reference to FIGS. 1 to 13.
This embodiment illustrates the board connector 10 that is fixed to a board (not shown) and into which the lever connector 50 is fitted. In the following description, the vertical direction is based on the vertical direction in FIGS. 1, 6, and 9. The front-rear direction is described with reference to the left-right direction in FIGS. 8 and 9 as a front side where the lever connector 50 and the board connector 10 are fitted to each other.

As shown in FIGS. 1 to 5, the board connector 10 includes a male terminal 20 and a male housing 30 made of synthetic resin that holds the plurality of male terminals 20.
As shown in FIG. 1, the male housing 30 has a horizontally long shape in the left-right direction, and has a hood-like fitting portion 31 that opens in a substantially rectangular shape toward the front. The lever-type connector 50 can be fitted into the fitting portion 31 from the front, and each inner wall in the fitting portion 31 has a flat shape extending along the fitting direction. 1, 2, 8, and 10 to 13, a part of the male housing 30 is not shown.

  As shown in FIGS. 1 to 5, the lower half of the back wall 32 arranged on the back side in the fitting direction of the fitting portion 31 is a terminal holding portion 33, and the terminal holding portion 33 includes a male holding portion 33. A plurality of terminals 20 are held side by side in a state where the terminals 20 are press-fitted.

  As shown in FIGS. 3 to 5, each male terminal 20 has an L shape, and a connection portion 21 that protrudes forward from a back wall 32 of the fitting portion 31 and a back wall 32 of the fitting portion 31. And a board connecting portion 22 that extends downward from the rear end portion thereof and is connected to the board.

  As shown in FIG. 1, a pair of fitting restricting portions 35 projecting forward from the inner wall 32 is provided above the terminal holding portion 33 in the inner wall 32 of the fitting portion 31.

  The pair of fitting restricting portions 35 are formed in a horizontally long plate shape in the left-right direction, and are arranged side by side in the left-right direction so as to be along the region where the terminal holding portion 33 is provided. Further, as shown in FIGS. 3 to 5, each fitting restricting portion 35 is formed to protrude forward from the connecting portion 21 of the male terminal 20, and the lever connector 50 is positioned in the fitting portion 31. When the fitting is shifted and the fitting restricting portion 35 and the lever-type connector 50 interfere with each other, it is possible to prevent the lever-type connector 50 from contacting the male terminal 20 and damaging the male terminal 20. It can be done.

  As shown in FIGS. 1 to 5, a cam pin 37 protrudes downward on an inner surface 36 </ b> A of a ceiling wall (an example of a “base wall”) 36 located on the upper side of the fitting portion 31. The cam pin 37 is formed in a substantially cylindrical shape, extends straight up and down to an area where the terminal holding portion 33 is provided, and is disposed between the pair of fitting restricting portions 35. Further, the cam pin 37 has a lower half which is a protruding end portion as a large diameter portion 38 and an upper half of the cam pin 37 as a small diameter portion 39 which is slightly smaller in diameter than the large diameter portion 38. For this reason, a tapered surface 37 </ b> A that is widened downward is formed over the entire circumference at the substantially central portion in the vertical direction of the cam pin 37, which is a boundary portion between the small diameter portion 39 and the large diameter portion 38. .

  On the other hand, as shown in FIGS. 6 to 9, the lever-type connector 50 is made of a synthetic resin female housing 51 that houses a plurality of female terminals (not shown) therein, and can be rotated and displaced to the female housing 51. And a synthetic resin lever 60 to be supported.

  As shown in FIGS. 6 to 9, the female housing 51 has a horizontally long block shape and can be fitted into the fitting portion 31 of the male housing 30 from the front. A terminal housing chamber 53 in which a plurality of female terminals are individually housed is provided in the lower half inside the female housing 51, and the female terminals can be housed from the rear of the terminal housing chamber 53.

  As shown in FIG. 7, a lever accommodating portion 54 to which the lever 60 is attached is provided above the terminal accommodating chamber 53, and the front wall 55 of the lever accommodating portion 54 is provided with FIGS. 6, 12, and FIG. As shown in FIG. 13, when the male housing 30 and the female housing 51 are fitted, an introduction groove 56 into which the cam pin 37 enters is formed to open forward.

  As shown in FIGS. 7 and 8, the lever 60 has a lever body 61 having a substantially rectangular flat plate shape. As shown in FIGS. 12 and 13, a shaft hole 62 that can be fitted to a support shaft 57 provided in the lever accommodating portion 54 is provided on one end side of the lever main body 61. Is provided with an operation portion 63 for rotating the lever body 61. The shaft hole 62 is a round hole that penetrates the lever main body 61 in the plate thickness direction. By fitting the support shaft 57 of the lever accommodating portion 54 into the shaft hole 62, the lever 60 is moved to the female housing 51. Is supported rotatably. The lever 60 has the lever main body 61 protruding from the lever accommodating portion 54 around the support shaft 57 (see FIG. 12), and the lever main body 61 is completely accommodated in the lever accommodating portion 54. It is possible to rotate between the fitting completion positions (see FIG. 13).

  Further, as shown in FIGS. 8, 12, and 13, the lever main body 61 is formed with a cam groove 64 into which the cam pin 37 of the male housing 30 can enter. The cam groove 64 is formed through the lever body 61 in the plate thickness direction so as to open to the side surface 61A of the lever body 61, and is formed in an arc shape so as to approach the shaft hole 62 from the side surface 61A of the lever body 61. Has been.

  When the lever 60 is disposed at the initial fitting position, the opening of the cam groove 64 coincides with the introduction groove 56 of the lever housing portion 54 and faces forward. When the fitting between the male housing 30 and the female housing 51 is started, the cam pin 37 enters the cam groove 64 through the introduction groove 56.

  When the cam pin 37 enters the cam groove 64 and the lever 60 is rotated toward the fitting completion position so that the lever main body 61 is accommodated in the lever accommodating portion 54, the small-diameter portion 39 of the cam pin 37 and the cam The inner wall 64A of the groove 64 is engaged. Then, the cam pin 37 is guided toward the inner portion 64B of the cam groove 64, whereby the female housing 51 and the male housing 30 are attracted to each other by the cam action, and the fitting proceeds. When the lever 60 reaches the mating completion position, the cam pin 37 reaches the inner portion 64B of the cam groove 64, and both the connectors 10 and 50 are in the proper mating state.

  A restricting portion 58 that restricts the opening of the lever 60 protrudes from the inner surface of the front wall 55 of the lever accommodating portion 54. The restricting portion 58 has an arc-shaped restricting surface 58 </ b> A extending along the outer peripheral surface of the lever 60 at its protruding end, and when the cam pin 37 and the lever 60 are engaged and a large force is applied to the lever 60. Further, the outer peripheral surface of the lever 60 and the regulating surface 58 </ b> A of the regulating portion 58 abut on each other, and the regulating portion 58 supports the lever 60. Thereby, it is possible to restrict the deformation of the lever 60 so that the cam groove 64 is opened.

  As shown in FIGS. 3 to 5, the large-diameter portion 38 that is the protruding end portion of the cam pin 37 is integrally connected to the reinforcing portion 40 that extends forward from the back wall 32 of the fitting portion 31. Has been. In other words, the cam pin 37 is coupled to the inner wall 32 of the fitting portion 31 via the reinforcing portion 40 and is connected to the inner surface 36 </ b> A of the ceiling wall 36 in the fitting portion 31 so as to be doubly supported. Yes. In other words, the cam pin 37 is supported by the ceiling wall 36 and the reinforcing portion 40 at both upper and lower end portions sandwiching the small diameter portion 39 with which the lever 60 engages in the cam pin 37.

  Specifically, the reinforcing portion 40 is configured to extend straight from the lower half position of the large diameter portion 38 toward the back wall 32, and the width of the reinforcing portion 40 is larger than the small diameter portion 39. It is set to be approximately the same size as the width dimension of the radial portion 38 in the left-right direction. That is, the reinforcing portion 40 is disposed so as to be hidden behind the large-diameter portion 38 when the fitting portion 31 is viewed from the front. A slit 41 extending in the front-rear direction extends from the back wall 32 of the fitting portion 31 to the large-diameter portion 38 at the center portion in the left-right direction of the reinforcing portion 40. The slit 41 is provided to the inside of the large diameter portion 38 and is formed so as to penetrate the fitting portion 31 in the front-rear direction. The rear wall 32 of the fitting portion 31 is provided with a die punching hole 43 for molding the cam pin 37, and the reinforcing portion 40 is connected to the lower edge portion of the die punching hole 43.

The present embodiment has the above-described configuration. Subsequently, the fitting operation between the board connector 10 and the lever connector 50 will be described, and the operation and effect thereof will be described.
First, the board connector 10 and the lever connector 50 are arranged to face each other, and the female housing 51 of the lever connector 50 is fitted into the fitting portion 31 of the board connector 10.

  When the female housing 51 is shallowly fitted in the fitting portion 31, the cam pin 37 in the fitting portion 31 enters the introduction groove 56 of the female housing 51 as shown in FIG. 12. Further, when the fitting portion 31 and the female housing 51 are fitted together, the cam pin 37 enters the cam groove 64 of the lever 60 through the introduction groove 56.

  When the cam pin 37 enters the cam groove 64, the operating portion 63 of the lever 60 is pressed to rotate the lever 60 from the initial mating position toward the mating completion position. Then, the cam pin 37 is displaced along the cam groove 64 by engaging with the inner wall 64A of the cam groove 64, and the male housing 30 and the female housing 51 are attracted by the cam action by this engagement, and the fitting proceeds. To do.

  By the way, when the cam pin 37 and the inner wall 64A of the cam groove 64 are engaged and the cam action is applied, the cam pin 37 receives a large force from the lever 60, so that the cam pin 37 is sheared by the lever 60 and the like. There is concern about damage.

  However, according to the present embodiment, the cam pin 37 has the base portion of the cam pin 37 supported by the ceiling wall 36 of the fitting portion 31, and the large diameter portion 38 that is the protruding end portion of the cam pin 37 is fitted via the reinforcing portion 40. It is supported by the back wall 32 of the joint portion 31 to form a doubly supported shape. That is, even if a large force is applied to the cam pin 37, the stress is distributed at two locations, that is, the base portion of the cam pin 37 and the large diameter portion 38 of the cam pin 37. For example, the piece supported only by the ceiling wall Compared with the holding cam pin, the cam pin 37 can be prevented from being damaged by being sheared.

  On the other hand, when a large force is applied to the lever 60 so as to open the cam groove 64, the outer peripheral surface of the lever 60 and the regulating surface 58A of the regulating portion 58 come into contact with each other and the lever 60 is supported by the regulating portion 58. The lever 60 is restricted from being deformed and damaged.

  In this manner, the fitting of the male housing 30 and the female housing 51 proceeds, the cam pin 37 reaches the back portion 64B of the cam groove 64, and the lever 60 is disposed at the fitting completion position to enter the lever accommodating portion 54. When accommodated, the board connector 10 and the lever-type connector 50 are brought into a proper fitting state.

  As described above, according to the present embodiment, the columnar cam pin 37 protruding from the ceiling wall 36 of the fitting portion 31 has one end (base portion) supported by the ceiling wall 36 and the other end of the cam pin 37 (projecting). Since the large-diameter portion 38) that is the end portion is supported by the reinforcing portion 40 that is continuous with the back wall 32 of the fitting portion 31, the force applied to the cam pin 37 is applied to the cam pin 37. It can be dispersed at both ends. Thereby, even if a large force is applied to the cam pin 37, the cam pin 37 can be prevented from being damaged so as to be sheared.

  By the way, for example, the cam pin can be formed in a cantilevered manner by forming the reinforcing portion so as to be connected to both the side wall located on the left and right of the fitting portion or the bottom wall of the fitting portion and the large diameter portion of the cam pin. Conceivable.

However, since it becomes impossible to arrange a male terminal behind the reinforcing part, if the reinforcing part is provided so as to be connected to the side wall or the bottom wall and the large diameter part of the cam pin, the male terminal is avoided by avoiding the reinforcing part. Will be arranged, and the fitting portion will be enlarged.
However, according to the present embodiment, since the reinforcing portion 40 is arranged behind the large-diameter portion 38 so as to use the dead space behind the cam pin 37 in the fitting portion 31, the fitting portion 31 is enlarged. The cam pin 37 can be reinforced while suppressing this.

  Further, according to the present embodiment, by setting the reinforcing portion 40 to the same width as the large-diameter portion 38 of the cam pin 37, the strength of the reinforcing portion 40 can be increased while suppressing the fitting portion 31 from becoming large. Although it can be improved, there is a concern that deformation (sink) may occur in the reinforcing portion 40 after molding as the resin thickness increases.

  However, according to the present embodiment, the reinforcing portion 40 is formed with a slit 41 extending in the front-rear direction over the entire length, and the slit 41 extends into the large-diameter portion 38 of the cam pin 37, so Since the increase in the thickness of the diameter portion 38 is reduced, it is possible to suppress sinking of the reinforcing portion 40 and the cam pin 37. That is, it is possible to prevent the entire cam pin 37 from being deformed due to sink marks generated in the reinforcing portion 40 and the large diameter portion 38.

<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) In the said embodiment, it was set as the structure by which the large diameter part 38 of the cam pin 37 was connected with the back wall 32 of the fitting part 31 via the reinforcement part 40. FIG. However, the present invention is not limited thereto, and the large-diameter portion of the cam pin may be connected to the left and right side walls of the fitting portion and the bottom wall of the fitting portion via the reinforcing portion.
(2) In the above embodiment, the reinforcing portion 40 is connected to the lower half of the large diameter portion 38 of the cam pin 37. However, the present invention is not limited to this, and the reinforcing portion may be connected to the middle position of the cam pin by connecting the reinforcing portion to the upper half of the large diameter portion.

(3) In the above embodiment, the female housing 51 can be fitted into the fitting portion 31, and the cam pin 37 protrudes from the inner surface 36 </ b> A of the ceiling wall 36 of the fitting portion 31 into the fitting portion 31. . However, the present invention is not limited to this, and the block-shaped fitting portion can be fitted into the hood portion provided in the female housing, the cam pin protrudes outward from the outer surface of the fitting portion, and the protruding end portion is fitted. You may make it the structure connected with the reinforcement part connected to the outer surface of a part.
(4) In the above embodiment, the lever 60 is rotatably supported by the female housing 51. However, the present invention is not limited to this, and the lever may be slidably supported by the female housing.

10: Board connector (connector)
30: Male housing (housing)
31: Fitting part 32: Back wall 36: Ceiling wall (base wall)
38: Large diameter portion (projecting end portion of the cam pin 37)
40: Reinforcement part 41: Slit 50: Lever type connector 60: Lever

Claims (3)

A connector that can be fitted with a lever-type connector that supports the lever so as to be displaceable,
The lever-type connector and the fitting portion have a fitting portion into which the lever-type connector can be fitted, and when the lever is engaged with a columnar cam pin protruding from the fitting portion. A resin housing that fits with
The cam pin includes a reinforcing portion integrally connected to the fitting portion and a position opposite to the base of the cam pin across the position where the lever engages ,
The reinforcing portion, the connector the lever in the cam pin that is wider than the portion to be engaged. The fitting portion is formed in a hood shape into which the lever-type connector is fitted, and the cam pin is formed to protrude from a base wall extending along a fitting direction in the fitting portion,
2. The connector according to claim 1, wherein the reinforcing portion is formed to extend in a fitting direction between a protruding end portion of the cam pin and a back wall on a back side in a fitting direction of the fitting portion. The front Symbol reinforcing portion, the connector according to claim 1 or claim 2 slit is formed.

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