JP2017098102A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a peak value of a control force of a connector without increasing the number of components.SOLUTION: A connector 20 disclosed in the present specification, comprises an inner housing 40 and an outer housing 30. The inner housing 40 includes an inner side arm 44 that is held in a fitting state by engaging to an engagement projection 160 provided at a mating side connector in a state of normality fitting to the mating side connector. The outer housing 30 includes: an outer side arm 35 that blocks that the inner side arm 44 is moved to an engagement cancellation position from an engagement position with the engagement projection 160; and an outer side projection 36 that is held in the fitting state by engaging to the inner side arm 44. When departing from the mating side connector, the outer housing 30 is only departed by holding the inner side arm 44 at the engaging position by the outer side arm 35 while keeping the state where the inner housing 40 is fitted to the mating side connector.SELECTED DRAWING: Figure 8

Description

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

  2. Description of the Related Art Conventionally, an electrical connector assembly described in, for example, Japanese Translation of PCT International Publication No. 2015-501074 (Patent Document 1 below) is known as a connector that performs a fitting operation using a cam gear. The electrical connector assembly includes a first connector having a guide pin and a second connector having a cam gear engageable with the guide pin, and the second connector is provided with a slider for rotating the cam gear. When the slider is moved, the rack teeth of the slider rotate the cam gear through the meshing of the teeth. When the cam gear rotates, the guide pin moves along the guide groove, and the first connector moves toward the final fitting position toward the second connector.

JP-T-2015-501074

  The reason why a booster mechanism such as a cam gear or a slider is used in the electrical connector assembly is that a large operating force is required to fit and detach the first connector and the second connector. Therefore, a method of reducing the peak value of the operating force by shifting the timing at which the frictional force of each component (for example, terminal) that affects the operating force of the connector reaches its peak can be considered, but the peak timing of each component is shifted. If new parts are added, the number of parts increases.

  A connector disclosed in the present specification is a connector that can be fitted to and detached from a mating connector, and includes an inner housing and an outer housing disposed on an outer periphery of the inner housing. In a state of being properly fitted to the mating connector, the inner housing has an inner side arm that is held in a mated state by being latched by a latching protrusion provided on the mating connector, and the outer housing An outer side arm that prevents the arm from moving from a locking position with the locking protrusion to a locking release position, and an outer side protrusion that is held in a fitted state by being locked to the inner side arm. When detaching from the mating connector, the inner arm is held in the locking position by the outer arm. Only the outer housing remain the inner housing is fitted to the mating connector is configured to leave at the.

  According to such a configuration, in a state where the inner housing is properly fitted with the mating connector, the inner side arm and the locking projection are held to be held in the fitted state. In the fitted state, the inner side arm is held at the locking position by the outer side arm. That is, at the locking position, the locked state between the inner side arm and the locking projection is not released, so that the inner housing does not come off from the mating connector, and only the outer housing comes off.

  On the other hand, at the locking release position, the locking state between the inner side arm and the locking projection is released, so that the inner housing can be detached from the mating connector. In short, the operation of detaching the outer housing from the mating connector and the operation of detaching the inner housing from the mating connector are performed separately. Thereby, the timing at which the operating force reaches a peak can be shifted between the inner housing and the outer housing, and the peak value of the operating force of the connector can be reduced.

The connector disclosed by this specification is good also as the following structures.
The front end portion of the inner side arm has a semi-lock shape on which the outer side protrusion can ride, and the outer side protrusion of the inner side arm is replaced with the outer side arm when the outer housing alone is detached. It is good also as a structure by which the said inner side arm is hold | maintained in the said latching position by riding on a front-end part.
According to such a configuration, since the front end portion of the inner side arm is semi-locked, the locked state between the outer side protrusion and the front end portion of the inner side arm can be released simply by moving the outer housing. it can. Moreover, the inner side arm can be held in the locking position by setting the outer side projection on the front end of the inner side arm.

The locking projection is semi-locked so that the front end portion of the inner side arm can ride on, and after the outer side projection rides on the locking projection when only the outer housing is detached. Instead of the outer projection, the front end of the inner arm rides on the locking projection so that the inner housing is detached in conjunction with the outer housing.
According to such a configuration, since the locking projection is semi-locked, the locking state between the front end portion of the inner side arm and the locking projection can be released simply by moving the outer housing and the inner housing. it can.

  According to the connector disclosed by this specification, the peak value of the operation force of a connector can be reduced, without increasing a number of parts.

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 view showing the positional relationship between housings (Part 1) Sectional view showing the positional relationship between housings (Part 2) Sectional view showing the positional relationship between housings (Part 3) Sectional view showing the positional relationship between housings (Part 4) Sectional drawing which showed the positional relationship between housings (the 5) Sectional drawing which showed the positional relationship between housings (the 6) Sectional view showing the state where the short pin and interlock terminal are fitted Sectional view showing the short pin and interlock terminal detached Sectional view showing a state in which a male terminal and a female terminal are fitted Sectional view showing the state where the male and female terminals are detached

<Embodiment>
Embodiments will be described with reference to FIGS. 1 to 17. 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 includes a synthetic resin outer housing 30 and a synthetic resin inner housing 40, and the outer housing 30 is disposed on the outer periphery of the inner housing 40. The inner housing 40 holds a pair of male terminals 50 that constitute a high-power 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.

  As shown in FIG. 1, the female housing 130 has a pair of female terminal accommodating portions 131 that individually accommodate the respective female terminals 140 and an interlock terminal accommodating portion 132 that collectively accommodates each interlock terminal 150. doing. The interlock terminal accommodating part 132 is arranged above the pair of female terminal accommodating parts 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. 11 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.

  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.

  As shown in FIG. 8, 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 the electric wire 51 and the rubber plug 52 that are connected to the male terminal 50. Yes. 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.

  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. 16, the outer cylinder part 135 of the female housing 130 has a double cylinder structure, and a 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. 1, a main lock 32 is provided on the outer peripheral surface of the outer housing 30. On the other hand, the outer cylindrical portion 135 of the female housing 130 is provided with a lock protrusion 139 that holds the connectors 20 and 120 in a fitted state when the main lock 32 is engaged.

  Further, as shown in FIG. 8, an interlocking portion 33 with the inner housing 40 is provided inside the outer housing 30. The interlocking portion 33 is disposed in the space S between the front wall 130F of the female housing 130 and the front wall 40F of the inner housing 40. When the outer housing 30 is in the forward position, the interlocking portion 33 is positioned along the front wall 130F of the female housing 130, and when the outer housing 30 is in the rearward position, as shown in FIGS. Is positioned along the front wall 40F of the inner housing 40.

  When the outer housing 30 is detached from the female connector 120 in a state where the interlocking portion 33 is positioned along the front wall 40F of the inner housing 40, the interlocking portion 33 contacts the front wall 40F of the inner housing 40 so that the outer housing 30 is removed. In conjunction with this, the inner housing 40 is detached integrally. In other words, the interlocking portion 33 can move within the space S, and the outer housing 30 can be moved relative to the inner housing 40 by the moving distance of the interlocking portion 33.

  Now, as shown in FIG. 8, a sub-block 34 is provided on the inner peripheral surface of the outer housing 30. The sub-block 34 has an outer side arm 35 that extends upward from the inner peripheral lower surface of the outer housing 30 and then extends forward, and an outer side protrusion 36 that protrudes upward at the front end of the outer side arm 35. doing. The outer arm 35 is elastically deformable.

  An inner side arm 44 is provided below the front wall 40F of the inner housing 40. The inner side arm 44 is elastically deformable. The front end 45 of the inner side arm 44 can be locked with the outer side protrusion 36 in the fitting direction. In a state where the front end portion 45 of the inner side arm 44 and the outer side projection 36 are locked, the outer housing 30 is held at the front position and is restricted from moving to the rear position with respect to the inner housing 40. In the following, the position of the inner arm 44 in FIGS. 8 to 10 is referred to as a locking position.

  The front end 45 of the inner side arm 44 is semi-locked. For this reason, when the outer housing 30 is forcibly moved rearward with respect to the inner housing 40, the locked state between the outer projection 36 and the front end 45 of the inner arm 44 is released as shown in FIG. In addition, the outer projection 36 can ride on the front end 45 of the inner arm 44. In the following, the position of the inner side arm 44 in FIGS. 11 to 13 is referred to as an unlocking position.

  Further, as shown in FIG. 1, a locking projection 160 is provided at the lower end portion of the front wall 130F of the female housing 130 so as to project forward and project downward. . The locking projection 160 can be locked with the front end 45 of the inner arm 44 in the fitting direction. In a state where the locking projection 160 and the front end 45 of the inner side arm 44 are locked, the inner housing 40 is held in a state of being fitted to the female connector 120.

  As shown in FIG. 9, in a state where the outer side protrusion 36 rides on the front end portion 45 of the inner side arm 44, the inner side arm 44 is held at the locking position and is restricted from moving to the locking release position. . For this reason, it is possible to restrict the inner housing 40 from being detached from the female connector 120.

  Moreover, the latching protrusion 160 is made into the semi-lock shape which protrudes below. For this reason, as shown in FIG. 10, the front end portion 45 of the inner side arm 44 can ride on the locking projection 160 in a state where the outer side projection 36 rides on the locking projection 160. Therefore, when the inner housing 40 is forcibly moved rearward via the outer housing 30, the locking state between the locking protrusion 160 and the front end 45 of the inner side arm 44 is released as shown in FIG. At the same time, the front end 45 of the inner side arm 44 can ride on the locking projection 160.

  Even if the inner side arm 44 and the outer side arm 35 are bent simultaneously from the state of FIG. 8 and the front end 45 of the inner side arm 44 rides on the locking projection 160, the outer side arm 35 is Since the bending of both arms 35 and 44 is restricted by contacting the inner peripheral surface of the housing 30, the locking state between the locking protrusion 160 and the front end 45 of the inner side arm 44 is maintained.

  As shown in FIG. 8, when the outer housing 30 is detached from the female connector 120 when the inner side arm 44 is in the locking position, the front end portion 45 of the inner side arm 44 is brought into the locking position by the outer side arm 35. Since the inner housing 40 is held, only the outer housing 30 starts to be detached. As shown in FIG. 9, when the outer protrusion 36 rides on the front end 45 of the inner side arm 44, the inner side arm 44 is still held in the locking position, so the inner housing 40 will not be detached. . Subsequently, when only the outer housing 30 is removed, as shown in FIG. 10, the outer-side protrusion 36 moves from the front end 45 of the inner-side arm 44 to the locking protrusion 160, and the front-end 45 of the inner-side arm 44 moves. It will be in the state which can ride on the latching protrusion 160.

  At this time, since the interlocking portion 33 of the outer housing 30 is in contact with the front wall 40F of the inner housing 40, the inner housing 40 is also detached when the outer housing 30 is detached. For this reason, as shown in FIG. 11, the front end portion 45 of the inner side arm 44 is slightly on the locking projection 160, and both arms 35 and 44 are bent at the same time. Further, when the outer housing 30 is detached, the front end 45 of the inner side arm 44 is completely on the locking projection 160, and the front end 45 of the inner side arm 44 is locked as shown in FIG. When getting over the protrusion 160, both arms 35 and 44 return to the natural state. Thereby, the detachment of both the connectors 20 and 120 is completed.

  The main lock 32 is configured so that the detachment operation of both the connectors 20 and 120 can be performed with two actions. When the main lock 32 is released from the state shown in FIG. 8, the outer housing 30 is allowed to be detached, and the outer housing 30 moves from the front position toward the rear position. When the outer housing 30 reaches the rear position, the detaching operation of the outer housing 30 is temporarily stopped by the main lock 32 as shown in FIG. After that, by releasing the main lock 32 again, the outer housing 30 and the inner housing 40 move together, and finally the male connector 20 and the female connector 120 are detached as shown in FIG. be able to.

  The timing at which the disengaging operation of the outer housing 30 is temporarily stopped by the main lock 32 is a timing at which the high-power circuit remains closed after the interlock circuit is opened. That is, the disengagement operation of the outer housing 30 is temporarily stopped at the timing when the short pin 60 is detached from each interlock terminal 150 and is switched from the closed state in which the interlock circuit is closed to the open state in which the interlock circuit is opened. Thereby, the delay time until the high power circuit is switched from the on state to the off state by the relay is secured, and the male terminal 50 and the female terminal 140 can be detached after the high power circuit is turned off.

  Next, the detachment operation of the connector 10 of this embodiment will be described. Although the male connector 20 and the female connector 120 are detached by holding only the outer housing 30 and pulling it backward, the outer side arm 35 and the front end 45 of the inner side arm 44 are connected to each other as shown in FIG. Since the locked state with the locking projection 160 is maintained, the inner housing 40 does not move, and only the outer housing 30 moves rearward. As shown in FIG. 10, when the outer side protrusion 36 rides on the front end portion 45 of the inner side arm 44, the outer end protrusion 36 holds the front end portion 45 of the inner side arm 44 and the locking protrusion 160 in a locked state. Since it is held, the inner housing 40 does not move backward, but only the separation of the outer housing 30 and the female connector 120 is completed.

  As shown in FIG. 11, when the front end 45 of the inner side arm 44 rides on the locking projection 160, the movement of the inner housing 40 is allowed. When the interlocking portion 33 abuts on the front wall 40F of the inner housing 40, the inner housing 40 moves rearward in conjunction with the outer housing 30, and the front end portion 45 of the inner side arm 44 is engaged as shown in FIG. When the stop protrusion 160 is passed, both arms 35 and 44 are restored, and the inner housing 40 and the female connector 120 are completely detached. Thus, the detachment of the male connector 20 and the female connector 120 is completed.

  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 by holding only the outer housing 30 in the hand, the outer projection 36 of the outer arm 35 is connected to the front end 45 of the inner arm 44 as shown in FIG. By pushing forward, the inner housing 40 moves in conjunction with the outer housing 30. As shown in FIG. 10, when the inner side arm 44 is returned, the fitting of the inner housing 40 and the female connector 120 is completed, and the forward movement of the inner housing 40 is stopped. In this state, only the outer-side protrusion 36 rides on the locking protrusion 160, and when the outer-side protrusion 36 gets over the front end 45 of the inner-side arm 44, the outer-side arm 35 returns as shown in FIG. The fitting between the outer housing 30 and the female connector 120 is completed.

  As described above, in the present embodiment, in a state where the inner housing 40 is properly fitted to the mating connector (female connector 120), the inner side arm 44 and the locking projection 160 are locked to keep the fitting state. Is done. In the fitted state, the inner side arm 44 is held at the locking position by the outer side arm 35. That is, at the locking position, the locked state of the inner side arm 44 and the locking projection 160 is not released, so the inner housing 40 does not leave the mating connector, and only the outer housing 30 leaves.

  On the other hand, at the locking release position, the locking state between the inner arm 44 and the locking projection 160 is released, so that the inner housing 40 can be detached from the mating connector. In short, the operation of detaching the outer housing 30 from the mating connector and the operation of detaching the inner housing 40 from the mating connector are performed separately. Thereby, the timing at which the operating force reaches a peak between the inner housing 40 and the outer housing 30 can be shifted, and the peak value of the operating force of the connector (male connector 20) can be reduced.

The front end portion 45 of the inner side arm 44 has a semi-lock shape on which the outer side projection 36 can ride, and the outer side projection 36 is replaced by the inner side arm 44 in place of the outer side arm 35 when only the outer housing 30 is detached. It is good also as a structure by which the inner side arm 44 is hold | maintained in a latching position by riding on the front-end part 45 of this.
According to such a configuration, since the front end portion 45 of the inner side arm 44 is semi-locked, the outer side protrusion 36 and the front end portion 45 of the inner side arm 44 can be locked only by moving the outer housing 30. The state can be released. Moreover, the inner side arm 44 can be held in the locked position by setting the outer side projection 36 to ride on the front end portion 45 of the inner side arm 44.

The locking projection 160 has a semi-lock shape that allows the front end 45 of the inner side arm 44 to ride, and the outer side projection 36 rides on the locking projection 160 when the outer housing 30 alone is detached. Thereafter, the inner housing 40 may be detached in conjunction with the outer housing 30 by the front end portion of the inner side arm 44 riding on the locking projection 160 instead of the outer side projection 36.
According to such a configuration, since the locking projection 160 is semi-locked, the locking between the front end portion 45 of the inner side arm 44 and the locking projection 160 can be achieved simply by moving the outer housing 30 and the inner housing 40. The state can be released.

<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 front end portion 45 of the inner side arm 44 is semi-locked in the above-described embodiment, the engaging surface between the front end portion of the inner side arm and the outer side projection is configured as a vertical surface, and the outer side The lock may be released by providing a release operation portion on the arm.

  (2) Although the locking projection 160 is semi-locked in the above embodiment, the locking surface between the locking projection 160 and the front end 45 of the inner side arm 44 is constituted by a vertical surface, and the inner side arm The release may be released by providing a release operation part.

  (3) Although the main lock 32 is provided separately from the sub-block 34 in the above embodiment, the sub-lock and the main lock may be configured as one lock.

DESCRIPTION OF SYMBOLS 20 ... Male connector 30 ... Outer housing 40 ... Inner housing 44 ... Inner side arm 45 ... Front end part 120 ... Female connector (mating side connector)
160 ... locking protrusion

Claims (3)

A connector that can be fitted and removed from the mating connector,
An inner housing;
An outer housing disposed on the outer periphery of the inner housing,
The inner housing has an inner arm that is held in a fitted state by being locked to a locking protrusion provided on the counterpart connector in a state in which the inner housing is properly fitted to the counterpart connector.
The outer housing is brought into a fitted state by engaging the inner side arm with an outer side arm that prevents the inner side arm from moving from the locking position with the locking protrusion to the locking release position. With outer side projections to hold,
When detaching from the mating connector, only the outer housing remains in a state in which the inner housing is fitted to the mating connector by holding the inner arm in the locking position by the outer arm. Is a connector to be disconnected. The front end of the inner side arm has a semi-lock shape on which the outer side protrusion can ride,
The inner side arm is held at the locking position by the outer side protrusion riding on the front end portion of the inner side arm instead of the outer side arm with the removal of only the outer housing. Connector. The locking protrusion has a semi-lock shape on which the front end of the inner side arm can ride,
After the outer side protrusion has ridden on the locking protrusion with the removal of only the outer housing, the front end portion of the inner side arm rides on the locking protrusion instead of the outer side protrusion. The connector according to claim 2, wherein the inner housing is detached in conjunction with the outer housing.

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