JP2017098024A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform an operation of two actions in separating a connector while preventing a fraudulent operation.SOLUTION: A first connector (male connector 20) includes a lock arm 90. The lock arm 90 comprises: a fulcrum part 91; an arm part 92 of which both end parts can be tilted in a seesaw state around the fulcrum part 91; and a lock part 93 provided to the arm part 92. A second connector (female connector 120) includes: an inside projection 138 provided in the inner side of the arm part 92 in an engaging state; and an outer side projection 139 provided at the outer side of the arm part 92 in the engaging state. The lock part 93 includes: an inner lock part 94 that holds both connectors by engaged by the inside projection 138 when an inter lock circuit is in an on state; and an outer lock part 95 that allows a separation operation to be stopped by engaging the outer side projection 139 after the inter lock circuit is switched to an off state from the on state.SELECTED DRAWING: Figure 10

Description

  The technology disclosed by this specification is related with a connector.

  2. Description of the Related Art Conventionally, a connector described in, for example, Japanese Patent Application Laid-Open No. 2015-95403 (Patent Document 1 below) is known as a connector in which an operation at the time of detachment of the connector is performed as two actions. This connector includes a pair of female terminals constituting a power circuit, a pair of interlock terminals constituting an interlock circuit, and a housing in which these terminals are housed, and the housing tilts in a seesaw shape. Possible lock arms are provided. A lock claw is provided at the front end portion of the lock arm, and a pressing portion is provided at the rear end portion of the lock arm. Also, a fitting guarantee part is mounted on the outer surface of the housing, and the fitting guarantee part allows a fitting guarantee position for preventing the lock arm from being elastically displaced and allows the lock arm to be elastically displaced. It can slide between the retracted position.

  When the connector is detached, the fitting guarantee part is displaced from the fitting guarantee position to the retracted position, and the locking part of the lock claw is released by pushing down the pressing part of the lock arm. Next, when the housing is slightly detached, the interlock circuit is turned off, and the power supply circuit is switched from the energized state to the non-energized state. Thereafter, the engagement is stopped when the engaging portion of the fitting assurance portion comes into contact with the lock portion of the housing. By pressing the release operation part of the fitting guarantee part downward, the locking state of the locking part is released, the housing can be detached again, and the power supply circuit is switched to the non-energized state. In this way, it is possible to secure a delay time from when the interlock circuit is turned off to when the power supply circuit is turned off.

JP-A-2015-95403

  However, in the connector described above, since the pressing portion of the lock arm and the release operation portion of the fitting assurance portion can be pressed simultaneously, although this is an unauthorized operation, The stop state can be released at the same time, and the delay time cannot be ensured when the housing is detached by one action.

  The connector disclosed in the present specification is composed of a first connector and a second connector that can be fitted to each other, and the interlock circuit is switched from an on state to an off state in accordance with the detachment operation of both the connectors. The first connector includes a lock arm, and the lock arm includes a fulcrum portion, an arm portion whose both end portions can tilt in a seesaw shape around the fulcrum portion, and a lock provided on the arm portion. And the second connector has an inner protrusion disposed on the inner side of the arm part in the fitted state and an outer protrusion disposed on the outer side of the arm part in the fitted state. The lock portion includes an inner lock portion that holds the two connectors in a fitted state by the inner protrusion engaging when the interlock circuit is in an on state, The outer protrusions after Rokku circuit is switched from the ON state to the OFF state is configured to have an outer locking portion for stopping the withdrawal operation by locking.

  According to such a configuration, in order to disengage both connectors, first, the lock portion is moved outward in order to release the locked state between the inner lock portion and the inner protrusion. Here, with the movement of the lock portion, the outer lock portion also moves outward. As a result, the outer lock portion approaches the outer projection, and when the outer lock portion continues to be detached as it is, the outer lock portion and the outer projection are eventually locked. Therefore, even if an unauthorized operation is performed to release the both connectors while releasing the locking state of the inner locking part and the inner protrusion, the outer locking part and the outer protrusion will always be locked. Is stopped in the middle, preventing unauthorized operation. Thereafter, since the connector detachment operation is resumed, the operation at the time of detachment of the connector can be set to two actions.

The connector disclosed by this specification is good also as the following structures.
An outer lock portion is arranged on one of both end portions of the arm portion, and a release operation portion is arranged on the other, and the inner lock portion and the inner protrusion are locked by pressing the release operation portion. Is configured to be released.
According to such a configuration, the release operation part is pressed inward to release the locked state of the inner lock part and the inner protrusion, and the outer lock part is released to release the locked state of the outer lock part and the outer protrusion. It will press inside. Here, since the release operation part and the outer lock part cannot be pressed at the same time, a holding work occurs after the release operation part is pressed and until the outer lock part is pressed. Therefore, it is possible to secure a delay time due to the change-over work after the operation at the time of detaching the connector is set to 2 actions.

  According to the connector disclosed in this specification, the operation when the connector is detached can be set to two actions while preventing an unauthorized operation.

The perspective view which showed the state before fitting the male connector and female connector of this embodiment Perspective view of male terminal connected to wire Perspective view of caulking ring Perspective view of inner housing Perspective view of outer housing Perspective view of shield shell The perspective view which showed the state before connecting a pair of interlock terminal with a short pin Sectional drawing which shows the locked state of an inner lock part (the 1) Sectional drawing which shows the locked state of an inner lock part (the 2) Sectional drawing which shows the locked state of an inner lock part (the 3) Sectional drawing which shows the locked state of an inner lock part (the 4) Sectional drawing which shows the locked state of an inner lock part (the 5) Sectional drawing which shows the locked state of an inner lock part (the 6) Sectional drawing which shows the locked state of an outer locking part (the 1) Sectional drawing which shows the locked state of an outer locking part (the 2) Sectional drawing which shows the locked state of an outer locking part (the 3) Sectional drawing which shows the locked state of an outer locking part (the 4) Sectional drawing which shows the locked state of an outer locking part (the 5) Sectional drawing which shows the locked state of an outer locking part (the 6) Sectional view showing a state where the male terminal and female terminal are connected

<Embodiment>
The embodiment will be described with reference to the drawings of FIGS. As shown in FIG. 1, the connector 10 of the present embodiment includes a male connector 20 and a female connector 120. The connector 10 is a connector for connecting a wire harness connected to a power source to a device, a male connector 20 is connected to the wire harness, and a female connector 120 is connected to the device. Therefore, the connector 10 constitutes a part of the high power circuit and a part of the interlock circuit that switches the high power circuit from the on state to the off state.

  The female connector 120 has a female housing 130 made of synthetic resin. Inside the female housing 130 are a pair of female terminals 140 that constitute a high-power circuit and a pair of interlock terminals 150 that constitute an interlock circuit. Contained. On the other hand, the male connector 20 has an outer housing 30 made of synthetic resin and an inner housing 40 made of synthetic resin, and the inner housing 40 holds a pair of male terminals 50 constituting a high-voltage circuit. The outer housing 30 holds a short pin 60 that constitutes an interlock circuit. As shown in FIG. 7, the pair of interlock terminals 150 are connected via the short pin 60 so as to be conductive.

  The female housing 130 includes a pair of female terminal accommodating portions 131 that individually accommodate the respective female terminals 140 illustrated in FIG. 20, and an interlock terminal accommodating portion 132 that collectively accommodates each interlock terminal 150 illustrated in FIG. 14. Have. As shown in FIG. 1, the interlock terminal accommodating portion 132 is disposed above the pair of female terminal accommodating portions 131. In addition, a pair of terminal protection walls 133 are provided on the outer periphery of each female terminal accommodating portion 131, and an inner cylinder portion 134 that covers them collectively is mounted on the outer periphery of each terminal protection wall 133. Further, an outer cylinder part 135 that covers the inner cylinder part 134 is provided on the outer periphery of the inner cylinder part 134. The interlock terminal accommodating part 132 has a form protruding forward from the front edge of the inner cylinder part 134.

  The outer housing 30 is attached to the inner housing 40 so as to be movable in the front-rear direction. The position of the outer housing 30 with respect to the inner housing 40 in FIG. 8 is a front position, and the position of the outer housing 30 with respect to the inner housing 40 in FIGS. 10 to 13 is a rear position. That is, the outer housing 30 can reciprocate between the front position and the rear position with respect to the inner housing 40. A portion of the outer housing 30 that fits with the female housing 130 is an outer hood portion 31.

  A pair of shield shells 90 shown in FIG. 6 are accommodated in the outer housing 30. The shield shell 90 has a pair of upper and lower connection pieces 91. A pair of folded pieces 92 are provided on both sides of the connection piece 91. Each folded piece 92 can be elastically displaced.

  As shown in FIG. 20, a second rubber ring 72 is fitted on the outer peripheral surface of the inner housing 40. When the inner housing 40 is assembled inside the outer housing 30, the second rubber ring 72 is sandwiched between the outer peripheral surface of the inner housing 40 and the inner peripheral surface of the outer housing 30, and between the inner housing 40 and the outer housing 30. Is sealed. Further, an inner hood portion 43 is provided on the front surface of the male terminal accommodating portion 41 so as to protrude forward.

  The inner housing 40 includes a male terminal accommodating portion 41 that accommodates each male terminal 50, and a rubber plug accommodating portion 42 that accommodates an electric wire 51 and a rubber plug 52 that are connected to the male terminal 50. The rubber plug 52 is sandwiched between the inner peripheral surface of the rubber plug housing portion 42 and the outer peripheral surface of the electric wire 51, and water is prevented from entering the male terminal housing portion 41 from the rubber plug housing portion 42.

  As shown in FIG. 2, the male terminal 50 is connected to the core wire exposed by peeling off the inner skin of the electric wire 51. A shield wire is disposed between the inner skin and the outer skin of the electric wire 51, and the shield wire is exposed to the outside by peeling off the outer skin. On the other hand, an unillustrated underlay ring is attached to the end of the outer skin. The folded portion 53 is provided by folding the shield wire on the underlying ring. A caulking ring 80 shown in FIG. 3 is crimped to the folded portion 53. The caulking ring 80 includes a small diameter portion 81 and a large diameter portion 82, and the small diameter portion 81 is connected to the folded portion 53.

  As shown in FIG. 20, the female terminal 140 has a folded portion 143 similar to the male terminal 50. The same caulking ring 80 as the male terminal 50 is crimped to the folded portion 143. The caulking ring 80 of the male terminal 50 and the caulking ring 80 of the female terminal 140 are connected by the shield shell 90 so as to be conductive. Specifically, one folded piece 92 of the connection piece 91 elastically contacts the large diameter portion 82 of the caulking ring 80 of the male terminal 50, and the other folded piece 92 of the connection piece 91 is caulked by the caulking ring 80 of the female terminal 140. Elastically contacts the large-diameter portion 82. Therefore, the shield wire of the electric wire 51 of the male connector 20 is connected to the shield wire of the electric wire 141 of the female connector 120 through the pair of caulking rings 80 and the shield shell 90 so as to be conductive.

  When fitting the male connector 20 and the female connector 120, the inner hood portion 43 of the inner housing 40 is inserted between the female terminal accommodating portion 131 and the inner cylinder portion 134. A first rubber ring 71 is fitted on the outer peripheral surface of the female terminal accommodating portion 131. When the female terminal accommodating portion 131 is fitted into the inner hood portion 43, the first rubber ring 71 is sandwiched between the outer peripheral surface of the female terminal accommodating portion 131 and the inner peripheral surface of the inner hood portion 43. The space between the accommodating portion 131 and the inner hood portion 43 is sealed.

  A lance 136 is provided inside the female terminal accommodating portion 131, and the female terminal 140 is prevented from coming out backward by being engaged with the female terminal 140. A front holder 137 is fitted to the front end portion of the female terminal accommodating portion 131. The front holder 137 plays a role of preventing the first rubber ring 71 from being pulled forward while stopping the female terminal 140 in front.

  The female terminal 140 is connected to the end of the electric wire 141, and a rubber plug 142 is fitted to the electric wire 141. The female terminal housing part 131 has a rubber plug housing part 138 for housing the electric wire 141 and the rubber plug 142. The rubber plug 142 is sandwiched between the inner peripheral surface of the rubber plug housing portion 138 and the outer peripheral surface of the electric wire 141, and water is prevented from entering the female terminal housing portion 131 from the rubber plug housing portion 138. .

  As shown in FIG. 20, the outer cylinder part 135 of the female housing 130 has a double cylinder structure, and the third rubber ring 73 is accommodated inside the outer cylinder part 135. The third rubber ring 73 is prevented from slipping forward by the inner cylinder portion 134. When fitting the male connector 20 and the female connector 120, the outer hood portion 31 of the outer housing 30 is inserted into the outer cylinder portion 135. The third rubber ring 73 is sandwiched between the outer hood part 31 and the outer cylinder part 135 of the outer housing 30, and the space between the outer cylinder part 135 and the outer hood part 31 is sealed.

  As shown in FIG. 14, a lock arm 90 is provided on the outer surface of the outer hood portion 31. The lock arm 90 includes a fulcrum part 91, an arm part 92 whose both ends can tilt in a seesaw shape around the fulcrum part 91, and a lock part 93 provided on the arm part 92. Further, the lock portion 93 includes an inner lock portion 94 and an outer lock portion 95. The outer lock portion 95 is located at the rear end portion of the arm portion 92, and the inner lock portion 94 is located closer to the fulcrum portion 91 than the outer lock portion 95, as shown in FIG.

  On the other hand, the outer cylindrical portion 135 of the female connector 120 in a state where the male connector 20 and the female connector 120 are fitted to each other has an inner protrusion 138 disposed on the inner side of the arm portion 92 and an outer surface disposed on the outer side of the arm portion 92. A protrusion 139 is provided. As shown in FIG. 8, the inner protrusion 138 is engaged with the inner lock portion 94 of the lock arm 90 from the front. Thereby, when the interlock circuit is in the ON state, the male connector 20 and the female connector 120 are held in the fitted state. Further, as shown in FIG. 16, the outer protrusion 139 moves forward from the outer lock portion 95 of the lock arm 90 after the interlock circuit is switched from the on state to the off state by detaching only the outer housing 30 from the fitted state. It comes to be locked from. Thereby, the detachment operation of the outer housing 30 is temporarily stopped, and a delay time is generated until the detachment operation is started again. With this delay time, a time required for the high-power circuit to switch from the energized state to the non-energized state by the relay is secured.

  As shown in FIG. 8, a release operation portion 96 that releases the locked state of the inner lock portion 94 and the inner protrusion 138 is provided at the front end portion of the arm portion 92. When the release operation portion 96 is pressed downward, the inner lock portion 94 swings upward with the fulcrum portion 91 as the swing center, as shown in FIG. 9, and the lock by the inner lock portion 94 is released. For this reason, the outer housing 30 moves from the front position to the rear position, and as shown in FIGS. 10 and 16, when the outer housing 30 reaches the rear position, the outer lock portion 95 and the outer protrusion 139 are locked to move the outer housing 30. Is stopped.

  On the other hand, the outer lock portion 95 is located at the rear end portion of the arm portion 92 and also serves as a release operation portion that releases the locked state of the outer lock portion 95 and the outer protrusion 139. Further, as shown in FIG. 10, when the outer housing 30 reaches the rear position and stops moving, a predetermined clearance is secured between the inner lock portion 94 and the inner protrusion 138. Is allowed to be pressed. Accordingly, when the outer lock portion 95 is pressed downward, the outer lock portion 95 swings downward with the fulcrum portion 91 as the swing center, and the lock by the outer lock portion 95 is released. For this reason, although the detaching operation of the outer housing 30 is resumed, the outer housing 30 and the inner housing 40 are detached together.

  As shown in FIGS. 11 and 17, the outer lock portion 95 enters the lower side of the outer protrusion 139, and as shown in FIGS. 12 and 18, the outer lock portion 95 detaches while sliding on the lower surface of the outer protrusion 139. Progresses. Then, when the outer lock portion 95 passes the outer protrusion 139, the arm portion 92 returns to the horizontal posture with the fulcrum portion 91 as the swing center, as shown in FIGS.

  Next, the detachment operation of the connector 10 of this embodiment will be described. In the state where the male connector 20 and the female connector 120 are fitted, as shown in FIGS. 14 and 20, each male terminal 50 is fitted and connected to each female terminal 140, and the high voltage circuit is turned on. . Further, the short pin 60 is fitted and connected to each interlock terminal 150, and the interlock circuit is turned on. When the male connector 20 and the female connector 120 are detached from this state, as shown in FIG. 15, only the outer housing 30 moves slightly from the front position toward the rear position, and the inner housing 40 does not move. Yes.

  When the outer housing 30 is moved, as shown in FIG. 16, the short pin 60 is detached from each interlock terminal 150, and the closed state in which the interlock circuit is closed is switched to the open state in which the interlock circuit is opened. . When the interlock circuit is opened, the high voltage circuit is switched from the on state to the off state. At this time, each male terminal 50 remains fitted and connected to each female terminal 140, and the high voltage circuit is prevented from being opened while being on. Here, the disengagement operation is temporarily stopped, and a delay time until the high-power circuit is switched from the on state to the off state by the relay is secured.

  When the movement of the outer housing 30 is resumed after the high-voltage circuit is turned off, the outer housing 30 and the inner housing 40 move together, and each male terminal 50 moves from each female terminal 140 in the disengagement direction. start. When the outer housing 30 continues to move, each male terminal 50 is detached from each female terminal 140. Thereby, the outer housing 30 moves from the energized position where the high-power circuit is closed to the non-energized position where the high-power circuit is opened. When the outer housing 30 reaches the non-energized position, the high voltage circuit is completely opened.

  Next, the fitting operation of the connector 10 of this embodiment will be described. Although the male connector 20 and the female connector 120 are fitted with only the outer housing 30 in hand, the inner housing 40 also moves in conjunction with the outer housing 30. The inner hood portion 43 of the inner housing 40 is inserted into the outer peripheral side of the front holder 137, and the front end portion of the male terminal 50 is inserted into the female terminal 140. When the fitting of the inner hood portion 43 of the inner housing 40 and the female terminal accommodating portion 131 is completed, the fitting of the male terminal 50 and the female terminal 140 is completed. As a result, the high voltage circuit is closed.

  Subsequently, when the outer housing 30 is pushed in the fitting direction, only the outer housing 30 starts to move while the inner housing 40 remains stationary. The outer hood portion 31 of the outer housing 30 is inserted into the outer cylinder portion 135 of the female housing 130, and the front end portion of the short pin 60 is inserted into the interlock terminal 150. When the fitting between the outer hood portion 31 and the outer cylinder portion 135 of the outer housing 30 is completed, the fitting between the short pin 60 and the interlock terminal 150 is completed. As a result, the interlock circuit is closed and the high voltage circuit is switched from the off state to the on state.

  As described above, in the present embodiment, in order to release both the connectors 20 and 120, first, the lock portion 93 is moved outward in order to release the locked state of the inner lock portion 94 and the inner protrusion 138. . Here, with the movement of the lock portion 93, the outer lock portion 95 also moves outward. As a result, the outer lock portion 95 approaches the outer protrusion 139, and when the outer lock portion 95 continues to be detached, the outer lock portion 95 and the outer protrusion 139 are locked. Therefore, even if an illegal operation of releasing the both connectors while releasing the locked state of the inner lock portion 94 and the inner protrusion 138 is attempted, the outer lock portion 95 and the outer protrusion 139 are always locked. Therefore, the detachment operation is stopped halfway, and unauthorized operation is prevented. Thereafter, the operation for detaching the connector 10 is resumed, so that the operation when the connector 10 is detached can be set to two actions.

An outer lock portion 95 is disposed on one of the both end portions of the arm portion 92, and a release operation portion 96 is disposed on the other end. By pressing the release operation portion 96, the engagement between the inner lock portion 94 and the inner protrusion 138 is performed. The stop state is released.
According to such a configuration, to release the locked state of the inner lock portion 94 and the inner protrusion 138, the release operation portion 96 is pressed inward, and the locked state of the outer lock portion 95 and the outer protrusion 139 is released. Will press the outer lock portion 95 inward. Here, since the release operation part 96 and the outer lock part 95 cannot be pressed at the same time, a holding work occurs after the release operation part 96 is pressed and until the outer lock part 95 is pressed. Accordingly, it is possible to secure a delay time due to the change-over work after the operation when the connector 10 is detached is set to two actions.

<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 above embodiment, the locking state between the inner lock portion 94 and the inner protrusion 138 is released by pressing the release operation portion 96, but the lock portion 93 is lifted using a jig or the like. Thus, the locked state of the inner lock portion 94 and the inner protrusion 138 may be released.

  (2) Although the outer housing 30 and the inner housing 40 are provided in the male connector 20 so as to be relatively movable in the above embodiment, a male housing in which the outer housing 30 and the inner housing 40 are integrated may be used.

10 ... Connector 20 ... Male connector (first connector)
DESCRIPTION OF SYMBOLS 90 ... Lock arm 91 ... Supporting point part 92 ... Arm part 93 ... Lock part 94 ... Inner lock part 95 ... Outer lock part 96 ... Release operation part 120 ... Female connector (2nd connector)
138 ... Inner protrusion 139 ... Outer protrusion

Claims (2)

The connector is composed of a first connector and a second connector that can be fitted to each other, and the interlock circuit is switched from an on state to an off state in accordance with the detachment operation of both the connectors,
The first connector includes a lock arm, and the lock arm includes a fulcrum portion, an arm portion whose both end portions can tilt in a seesaw shape around the fulcrum portion, and a lock portion provided on the arm portion. Configured with
The second connector has an inner protrusion disposed on the inner side of the arm part in the fitted state, and an outer protrusion disposed on the outer side of the arm part in the fitted state,
The lock portion includes an inner lock portion that holds the two connectors in a fitted state by locking the inner protrusion when the interlock circuit is in an on state, and the interlock circuit from an on state to an off state. A connector having an outer lock portion that stops the detachment operation by the outer protrusion being locked after switching to.   An outer lock portion is arranged on one of both end portions of the arm portion, and a release operation portion is arranged on the other, and the inner lock portion and the inner protrusion are locked by pressing the release operation portion. The connector according to claim 1, wherein is released.

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