JP2011192587A - Plug for vehicular charge cable and socket for connecting vehicular charge cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug for a vehicular charge cable capable of simultaneously intercepting current conduction in connection with pulling-off of the plug and absorbing an allowable error of a distance between an amount of linear motions caused by insertion and pulling-off of the plug and a contact closing mechanism at a certain degree, and a socket for a vehicular charge cable. <P>SOLUTION: The plug for the vehicular charge cable includes a trip bar 15 always projected from a socket connection surface 12 by urging outward its pointed head section with an elastic means 25 and pushed inwardly inside a plug body at the time of inserting the plug, a rotary body 30 rotated by pushing with a rear end 26 of the trip bar 15 at the time of inserting the plug, and a link mechanism for closing a contact by operating together with rotation of the rotary body 30. A contact section 38 for passing through the rear end 26 of the trip bar 15 further pushed after closing the contact is arranged on the rotary body 30, and an allowable error of the amount of linear motions of the trip bar 15 can be absorbed at a certain degree. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an outlet plug for a charging cable used for charging a charging vehicle such as a plug-in hybrid vehicle or an electric vehicle, and an outlet tap for connecting an automotive charging cable.

  Charging a plug-in hybrid vehicle or an electric vehicle is performed by connecting a charging stand and a charging vehicle with a charging cable. There are two types of charging cables: a type that is provided integrally with a charging stand (stand integrated cable) and a type that can be carried on a charging vehicle (portable cable).

  All of the charging cables have the common feature of having a connector for connection with the charging vehicle at one end. On the other hand, the other end of the cable is drawn into the charging stand with a stand-integrated cable and cannot be removed by the user, whereas with a portable cable, the outlet tap on the power supply side such as the charging stand is used for charging. There is an outlet plug to be plugged into. In addition to a charging stand, a normal outdoor outlet installed outside a general household may be used as this power source.

  Some outlet taps of a charging stand incorporate a protective device that interrupts energization when an outlet plug is accidentally pulled out during charging (Patent Document 1). However, such a protective device is usually not incorporated in an outdoor outlet installed outside a general household. In addition, since the internal structure of the outlet tap cannot be visually recognized from the outside, the user of the charging cable cannot confirm the existence of the protective device even when charging from a power source other than a general household. For this reason, when charging from an outlet tap that does not have a built-in protective device, if you accidentally pull out the outlet plug during charging, an arc will jump between the outlet tap and the outlet plug, and your hand holding the outlet plug There was a possibility of burns.

  There is a demand for an outlet plug having a structure capable of instantaneously interrupting energization by opening an internal contact when the outlet plug is accidentally pulled out during charging. For this purpose, it is preferable to mechanically link the linear movement caused by plugging in and pulling out the outlet plug and the contact insertion mechanism, and the tip end portion is always connected to the outlet plug body by elastic means from the outlet connection surface. A promising design is to provide a trip bar that is urged outward and protrudes, and is pushed inward when the outlet is inserted.

  However, the linear momentum due to plugging in and pulling out the outlet plug is not exactly constant due to the tolerance of parts and the allowance with the outlet tap at the time of insertion, but the contact is surely inserted by the linear momentum with some tolerance It is necessary to make the structure. In addition, since a large current flows through the outlet plug of an automobile charging cable, a structure that can strongly press the internal mechanism with the trip bar to increase the contact pressure of the contact is required. May be destroyed. For this reason, it is necessary to release the pressure of the linear motion after the contact is closed. However, no solution to these problems has been proposed so far.

JP 2005-294080 A

  Therefore, the object of the present invention is to cut off the power supply instantaneously by opening the internal contact when the outlet plug is accidentally pulled out during charging. A certain amount of tolerance can be absorbed in between, and even if the plug is inserted into the outlet tap after the contact is closed, no excessive force is applied to the internal parts. It is to provide an outlet tap for cable connection.

  The present invention made in order to solve the above-mentioned problems is an outlet plug disposed at an end portion of a charging cable for an automobile, and the tip end portion is normally provided by an elastic means from the outlet connection surface inside the outlet plug body. A trip bar that is urged outward and protrudes and is pushed inward when the outlet is inserted, a rotating body that is pressed and rotated by the rear end of the trip bar when the outlet is inserted, and a contact that is linked to the rotation of the rotating body. The rotating body is provided with a contact portion for allowing the rear end portion of the trip bar to be further pushed in after the contact point is closed to pass therethrough.

  As in claim 2, the rotating body is pivotally supported in the outlet plug body, and the contact portion is formed at the tip of a protrusion protruding from the peripheral edge of the rotating body. On the inside, a slope that is pressed by the rear end of the trip bar is formed, and as the rotating body rotates, the pressing point by the rear end of the trip bar moves to the tip of the protrusion on the slope and the contact is closed After that, it is preferable that the rear end portion of the trip bar pass through the contact portion of the protrusion.

  Further, it is preferable that the outlet plug main body has a structure in which an earth leakage tripping mechanism for pulling off the link mechanism and opening the contact is detected in the outlet plug body.

  Further, the invention according to claim 4 is an outlet tap into which an outlet plug attached to the tip of a charging cable for an electric vehicle is inserted, and the tip portion is normally in contact with the outlet plug inside the outlet tap body. A trip bar that is urged outward by elastic means to protrude and is pushed inward when the outlet is inserted, a rotating body that is pressed and rotated by the rear end of the trip bar when the outlet is inserted, and interlocked with the rotation of this rotating body The rotating body includes a contact portion that allows a rear end portion of a trip bar that is further pushed in after the contact is closed to pass therethrough.

  Further, as in claim 5, the rotating body is pivotally supported inside the outlet tap main body, and the abutting portion is formed at the tip of a protrusion protruding from the peripheral edge of the rotating body. On the inside, a slope that is pressed by the rear end of the trip bar is formed, and as the rotating body rotates, the pressing point by the rear end of the trip bar moves to the tip of the protrusion on the slope and the contact is closed After that, it is preferable that the rear end portion of the trip bar pass through the contact portion of the protrusion.

  Further, it is preferable that the outlet plug tap has a structure in which an earth leakage tripping mechanism for pulling off the link mechanism and opening the contact is detected in the outlet plug tap.

  In the outlet plug of the charging cable for automobiles of the present invention, when the trip bar is pushed in along with the insertion of the outlet, the rotating body is pushed by the rear end portion of the trip bar, and the link mechanism is interlocked with this rotation. Turn on the contact. In addition, since the rear end of the trip bar that is pushed in after the contact is closed passes through the contact part of the rotating body, the linear momentum due to plugging in and pulling out the outlet plug and the link mechanism that inserts the contact A certain amount of tolerance can be absorbed, and even if the plug is further inserted into the outlet tap after the contact is closed, no excessive force is applied to the internal components.

  According to the invention of claim 2, the rear end of the trip bar surely presses the protrusion projecting from the peripheral edge of the rotating body to rotate the rotating body. When the rotating body is gradually moved to a predetermined angle and the rotating body rotates to a predetermined angle, the rear end portion of the trip bar passes through the abutting portion at the tip end of the protrusion, so that the above-described effects of the present invention can be reliably exhibited. Further, according to the invention of claim 3, since the contact is immediately opened upon detection of a leakage, it is possible to reliably prevent an electric shock accident or the like.

  According to a fifth aspect of the present invention, there is provided an outlet tap for connecting a charging cable for an automobile, and a rotating body that is pressed and rotated by a rear end portion of a trip bar when the outlet is inserted, and a contact is inserted in conjunction with the rotation of the rotating body. Link mechanism, and this rotating body has a structure that passes through the rear end of the trip bar that is further pushed in after the contact is closed. A certain amount of tolerance can be absorbed during this period, and even if the plug is further inserted into the outlet tap after the contact is closed, no excessive force is applied to the internal components.

  According to the invention of claim 4, the rear end portion of the trip bar reliably presses the protrusion protruding from the peripheral edge of the rotating body to rotate the rotating body. When the rotary body rotates to a predetermined angle, the rear end portion of the trip bar passes through the contact portion formed at the tip end of the protrusion, so that the above-described effects of the present invention can be exhibited reliably. Can do. Furthermore, according to the sixth aspect of the present invention, the contact is immediately opened when a leakage is detected, so that an electric shock accident or the like can be reliably prevented.

It is an external appearance perspective view which shows embodiment of this invention. It is internal structure explanatory drawing of the state which pulled out the outlet socket. It is a perspective view of the same state as FIG. It is an expansion perspective view of the rear end part of a trip bar. It is an expansion perspective view of a rotary body. It is a perspective view which shows an earth leakage tripping mechanism. It is internal structure explanatory drawing of the state in the middle of insertion of an outlet socket. It is a perspective view of the same state as FIG. It is internal structure explanatory drawing of the completion state of insertion of an outlet socket. It is a perspective view of the same state as FIG. It is explanatory drawing of the rotary body of the insertion start state of an outlet socket. It is explanatory drawing of the rotary body of the state in the middle of insertion of an outlet socket. It is explanatory drawing of the principal part of a link mechanism. It is internal structure explanatory drawing of the outlet socket which shows the state which electric leakage generate | occur | produced. It is internal structure explanatory drawing which shows other embodiment of this invention. It is sectional drawing which shows other embodiment of this invention. It is internal mechanism explanatory drawing of other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is an external perspective view showing an embodiment of the present invention, and reference numeral 10 denotes an outlet plug body provided at the tip of a charging cable 11. Although not shown, a connection portion to the automobile side is formed at the other end of the charging cable 11. The end face of the front end portion of the outlet plug body 10 is an outlet connecting face 12, in which two energizing plugs 13 and one ground plug 14 are projected, and the tip of the trip bar 15 is projected. The power plug 13 and the ground plug 14 are fixed to the outlet plug body 10 and are inserted into the outlet tap on the power supply side. The trip bar 15 is connected to the outlet plug body 10 as will be described in detail below. It can be infested. An energization indicator lamp 16 and a test button 17 are provided on the upper surface of the outlet plug body 10. The test button 17 is a button for testing whether or not an earth leakage tripping mechanism described later operates normally.

  The internal structure of the outlet plug body 10 will be described below, but in order to clarify the shape and operation of each part, the frame 42 that supports each part is omitted in each figure other than FIG. First, the entire structure will be described with reference to FIGS.

  An insulating plate 20 is provided on the back surface of the outlet connection surface 12, and a fixed contact 22 having a fixed contact 21 is fixed at a lower position thereof. A base portion of the fixed contact 22 is upward. The power plug 13 is bent as described above. A movable contact 24 having a movable contact 23 is provided at the upper position. The base of the movable contact 24 is electrically connected to the charging cable 11. These fixed contact 21, fixed contact 22, movable contact 23, and movable contact 24 are all provided in pairs for two poles. As described above, since the fixed contact 21 and the movable contact 23 are interposed between the power plug 13 and the charging cable 11, charging is possible only when the movable contact 23 is in pressure contact with the fixed contact 21. 2 and 3, the contact is in an off state.

  The trip bar 15 is a narrow plate-like body that penetrates through the outlet connection surface 12 and extends toward the inside of the outlet plug body 10, and is always bulleted outward by an elastic means 25 such as a coil spring. Only the thin tip protrudes from the outlet connection surface 12. The rear part of the trip bar 15 is bent downward in an L shape, and the rear end part 26 has a triangular cross section as shown in FIG. A protrusion 27 is formed on the rear lower surface of the trip bar 15.

  Below the trip bar 15, a link mechanism and a rotating body 30 as a contact input mechanism are provided. The link mechanism includes a link pin 31, a latch member 32, a cross bar 33, and a trigger lever 34. The rotating body 30 is positioned below the rear end portion 26 of the trip bar 15 and can rotate around a shaft 44 fixed to the frame 42. The rotating body 30 is a substantially L-shaped member as shown in FIG. 5, and a protrusion 36 that is pressed by the rear end portion 26 when the trip bar 15 is pressed inwardly projects from the upper end portion thereof. ing. A slope 37 is formed inside the protrusion 36, and the tip of the protrusion 36 serves as a contact portion 38 with the trip bar 15. An elastic means (not shown) is provided around the shaft 35, and the rotating body 30 is always urged in a direction (an anticlockwise direction in the drawing) in which the upper portion where the protrusion 36 is located approaches the outlet connection surface 12. Yes. For this reason, the rotating body 30 is in the basic position of FIG. A substantially U-shaped link pin 31 is rotatably provided at the tip of the rotating body 30.

  Reference numeral 32 denotes a latch member having a central portion coupled to the link pin 31. The latch member 32 includes an upper piece 40 extending upward and a lower piece 41 extending downward. Further, the connecting portion A of the latch member 32 with the link pin 31 is supported so as to be movable only in the front-rear direction by a long hole 43 formed in the frame 42 shown in FIG.

A trigger lever 34 is provided above the latch member 32 and the rotating body 30 and below the trip bar 15 so as to be substantially parallel to the trip bar 15. The trigger lever 34 is rotatable about a shaft 44 fixed to the frame 42 and is supported by a plunger 53 described later.
A tip end portion of the trigger lever 34 on the side close to the outlet connection surface 12 protrudes downward in an edge shape, and serves as an engagement portion 45 with the upper piece 40 of the latch member 32. In the state of FIG. 2, the engaging portion 45 of the trigger lever 34 is not engaged with the upper piece 40 of the latch member 32.

  The lower piece 41 of the latch member 32 is bent at the lower portion and is adjacent to the cross bar 33 extending in the width direction. The cross bar 33 is always in contact with the movable contact 24, and when the lower piece 41 of the latch member 32 pushes the cross bar 33 toward the outlet connection surface 12, the movable contact 24 is pushed as shown in FIGS. The movable contact 23 is brought into contact with the fixed contact 21. This point will be described later.

In addition, the outlet plug main body 10 incorporates an earth leakage tripping mechanism that pulls off the link mechanism and opens the contact when the earth leakage is detected. 51 is a ZCT for detecting electric leakage, and an electric wire penetrates through it. When the leakage current is detected by the ZCT 51 and the determination circuit 52 determines that the leakage is greater than or equal to a predetermined value, the solenoid 53, which is an abnormal cutoff device, is excited and the plunger 54 is slidably held by the solenoid 53. Aspirate.
Further, as shown in FIG. 6, the upper end of the plunger 54 is engaged with an engagement portion 55 formed in a bifurcated shape at the rear end portion of the trigger lever 34. When the plunger 54 is sucked, the trigger lever 34 is pulled. Is configured to rotate in a direction in which the back side is lowered about the shaft 44.

The operation of the outlet plug of the present invention will be described below.
First, when the outlet plug is not inserted into the outlet tap, each member is in the state shown in FIGS. 2 and 3, and the movable contact 23 is separated from the fixed contact 21 by the elasticity of the movable contact 24. When the outlet plug is inserted into the outlet tap from this state, the trip bar 15 whose end is normally urged outward from the outlet connecting surface 12 by the elastic means 25 is elastically applied as shown in FIGS. Against being pushed inward.

  In the initial insertion state, the rear end portion 26 of the trip bar 15 presses the inclined surface 37 formed on the front surface of the protrusion 27 of the rotating body 30, and the rotating body 30 is moved backward about the shaft 35 as shown in FIG. Rotate. Accordingly, the pressing point by the rear end portion 26 of the trip bar 15 gradually moves to the tip end side of the protrusion on the slope 37 as shown in FIG. Finally, the rear end portion 26 of the trip bar 15 rides on the abutting portion 38 at the tip of the protrusion 36 of the rotating body 30 as shown in FIGS. 9 and 10, and thereafter the rotating body 30 is further rotated. Without passing through the contact portion 38.

  When the outlet plug is thus inserted into the outlet tap, the rotating body 30 is rotated against the elastic force by the rear end portion 26 of the trip bar 15. By this rotation, the tip of the rotating body 30 moves while rotating obliquely upward, and the pivoting portion B of the link pin 31 also moves while rotating obliquely upward. Accordingly, the connecting portion A of the link pin 31 moves to the outlet connection surface 12 side along the long hole 43 formed in the frame 42, so that the latch member 32 is also connected to the outlet by being pushed by the connecting portion A of the link pin 31. Moving to the surface 12 side, the upper piece 40 of the latch member 32 engages with the engaging portion 45 of the trigger lever 34. When the rotating body 30 further rotates from this state, the latch member 25 rotates with the engagement point with the trigger lever 34 as a fulcrum, and the lower piece 41 presses the cross bar 33 toward the outlet connection surface 12 side, The bar 33 presses the movable contact 24 to press the movable contact 23 against the fixed contact 21. As a result, the contact is turned on, and the power plug 13 and the charging cable 11 become conductive.

  It should be noted that when the rotating body 30 is rotated to the intermediate position shown in FIGS. 7 and 8, the movable contact 23 comes into contact with the fixed contact 21, and then the rotating body 30 is further rotated to the positions of FIGS. If the movable contact 23 is pressed strongly by the fixed contact 21 by using it, the contact pressure between the fixed contact 21 and the movable contact 23 can be increased. 9 and 10, even if the trip bar 15 is further pushed in, the rotating body 30 is not further rotated. Therefore, even if there is some tolerance in the linear momentum of the trip bar 15, the trip bar 15 rotates. The body 30 and the trip bar 15 are not destroyed.

  In the middle of the state from FIG. 2 to FIG. 9, the rotating body 30 of the link pin 31 is more than the straight line L passing through the connecting portion A of the link pin 31 with the latch member 32 and the shaft 35 of the rotating body 30. The pivot part B moves to the upper side. The elastic force acting on the rotator 30 is counterclockwise in FIG. 13 and when the pivot B is on the lower side of the straight line L, the rotator 30 is returned to the state shown in FIG. However, since the latch member 32 is engaged with the trigger lever 34 and the cross bar 33 is pressed in the right direction in FIG. When the intersection is exceeded, the state enters the stable side, and the states of FIGS. 9, 10, and 13 are maintained unless the position of the connecting portion A moves. For this reason, in a state where the outlet plug is inserted into the outlet tap, the contact-on state is stably maintained.

  However, when an attempt is made to pull out the outlet plug from the state shown in FIGS. 9 and 10, the trip bar 15 moves forward toward the outlet connection surface 12 in a state where the power plug 13 is still inserted into the outlet tap. Then, the protrusion 27 of the trip bar 15 comes into contact with the upward bent portion 56 of the trigger lever 34 and rotates the trigger lever 34 clockwise against the elastic force. When the outlet plug is further pulled out from this state and the trip bar 15 advances to the outlet connecting surface 12 side, the engagement portion 45 of the trigger lever 34 moves upward, so that the engagement with the upper piece 40 of the latch member 32 is released. .

  At that moment, the latch member 32 that has lost its upper support rotates in the counterclockwise direction of FIG. 13 by the elastic force applied from the link pin 31, and the connecting portion A of the link pin 31 moves to the left. For this reason, the stable state of FIG. 13 that has been maintained until then collapses, and the rotating body 30 rapidly rotates to the state of FIG. 2 by the elastic force, and at the same time, the pressing of the cross bar 33 by the lower piece 41 of the latch member 32 is released. Thus, the lower part of the movable contact 24 rotates to the right, the movable contact 23 trips away from the fixed contact 21, and the contact is turned off.

  When the outlet plug is pulled out in this way, the contact is opened in conjunction with the outward movement of the trip bar 15 from the outlet connection surface 12 in a state where the power plug 13 is still inserted into the outlet tap, so that the arc is movable. It is formed between the contact 23 and the fixed contact 21, and the risk of an arc flying outside the outlet plug can be prevented. Since the arc formed between the movable contact 23 and the fixed contact 21 is the same as the arc generated during normal breaker operation, it can be easily extinguished and there is no problem. In order to perform this function reliably, the projecting length of the power plug 13 from the outlet connection surface 12 is sufficiently longer than the projecting length of the tip of the trip bar 15.

  In addition, when a leakage occurs between the outlet tap and the charging vehicle, the leakage is detected by the ZCT 51. When the determination circuit 52 determines that the leakage is equal to or greater than a predetermined value, the link mechanism is operated to cause a trip state. And That is, when an output signal is output from the determination circuit 52, the solenoid 53 is excited to attract the plunger 54 downward. At this time, the trigger lever 34 engaged with the upper end portion of the plunger 54 rotates around the shaft 44 so that the outlet connection surface 12 side is raised. Therefore, the latch member 32 and the trigger lever 34 are disengaged, and the contact is opened by the elastic force of the movable contact 24 itself. As shown in FIG. 14, since the electric leakage occurs when the outlet plug is inserted into the outlet tap, the rotating body 30 has the contact portion 38 of the protrusion 36 on the lower surface of the rear end portion 26 of the trip bar 15. It does not rotate by contact.

When the excitation of the solenoid 54 is released, the plunger 53 is pressed by the spring in the solenoid 54 to return to the return position, and in conjunction with this, the trigger lever 34 also returns to the position before the occurrence of electric leakage. Thereafter, when the outlet plug is pulled out of the outlet tap, the trip bar 15 protrudes outward by the elastic means 25. At this time, the contact between the protrusion 36 of the rotating body 30 and the rear end portion 26 of the trip bar 15 is eliminated, so that the rotating body 30 is rotated by an elastic force (not shown) acting on the rotating body 30, and the figure before the plug plug is inserted. Return to the state of 2.
That is, it is possible to perform an operation of closing the contact and returning from the trip position only by a linear operation of plugging in and pulling out the outlet plug.

  As described above, even when the outlet plug of the present invention is accidentally pulled out from the outlet tap during charging, there is no possibility of generating an arc outside. Further, the trip bar 15 is pushed in by inserting the outlet plug into the outlet tap. However, the rear end portion 26 of the trip bar 15 to be pushed in after the contact is closed passes through the contact portion 38 of the rotating body 30. For this reason, a certain amount of tolerance can be absorbed between the linear momentum of the trip bar 15 by the insertion and removal of the outlet plug and the link mechanism for introducing the contact. That is, it is possible to absorb tolerances in manufacturing parts, and to give a certain margin to the distance between the outlet tap and the outlet connection surface when the outlet plug is inserted. There is an advantage that even if the plug is further inserted into the outlet tap after the contact is closed, an excessive force is not applied to the internal parts and the components are not destroyed. Further, even if a leakage occurs, the outlet plug can be inserted and returned to the initial state by pulling out the outlet plug from the outlet tap.

15 to 17 are explanatory views of an embodiment of an outlet tap for connecting an automobile charging cable. In the present embodiment, the outlet plug mechanism of the above-described automobile charging cable is incorporated in the outlet tap main body 60 installed on the wall surface of a building or a columnar structure, and the functions thereof are substantially the same. The same structure is given a common number, and only the main part is displayed and explained.
The outlet tap main body 60 incorporates a mechanism of an outlet plug in a space portion 61 formed at an upper portion thereof, and includes a contact surface 62 with an outlet plug inclined obliquely downward below. Further, on the contact surface 62 with the outlet plug, an energizing plug insertion portion 63 is formed on the front side, and an earth plug insertion portion 64 is formed on the back side.
The space portion 61 has a built-in outlet plug mechanism similar to that of the above-described embodiment. The energizing plug receiving blade 65 is located at a position corresponding to the energizing plug insertion portion 63, and the ground is located at a position corresponding to the earth plug insertion portion 64. Plug receiving blades 66 are respectively provided. The energizing plug receiving blade 65 is electrically connected to the fixed contact 21 and is in an energized state by contacting the fixed contact and the movable contact 23 when the outlet plug is inserted as will be described later.

Further, the trip bar 15 is provided in front of the ground plug insertion portion 64.
In the state where the outlet plug main body 60 is not connected to the outlet plug, the tip of the trip bar 15 protrudes from the contact surface 62 by being urged outward by the elastic means 25 such as a coil spring.
When the outlet is inserted, the trip bar 15 is pushed inwardly of the outlet tap body 60, and the rear end portion 26 of the trip bar 15 presses the protrusion 36 of the rotating body 30.
The link mechanism for bringing the movable contact 23 and the fixed contact 21 into contact with the rotation of the rotating body 30 includes a link pin 31, a latch member 32, a cross bar 33, and a trigger lever 34. The rotating body 30 includes a contact portion 38 that allows the rear end portion 26 of the trip bar 15 to be pushed in after the contact is closed to pass therethrough. The function and operation of this structure are substantially the same as those in the embodiment of the outlet plug described above.
By using such an outlet tap for connecting a charging cable for an automobile, a certain degree of tolerance can be absorbed between the linear momentum by inserting and pulling out the outlet plug and the link mechanism for closing the contact, and the contact is closed. There is an advantage that no excessive force is applied to the internal parts even if it is inserted into the outlet tap later.

The rotating body 30 is pivotally supported inside the outlet tap main body 60, and the abutting portion 38 is formed at the tip of a projection 36 that protrudes from the peripheral edge of the rotating body 30. A slope 37 that is pressed by the rear end portion of the trip bar 15 is formed inside the protrusion 36, and as the rotating body 30 rotates, the pressing point by the rear end portion 26 of the trip bar 15 is changed to the tip of the protrusion on the slope. After the contact is closed, the rear end portion 26 of the trip bar 15 passes through the contact portion of the protrusion 36.
The use of such an outlet tap for connecting an automobile charging cable has an advantage that the above-described effects can be surely exhibited.

Further, a leakage tripping mechanism that opens the contact point by pulling off the link mechanism when leakage is detected is incorporated in the outlet plug tap so that an appropriate interruption can be performed when leakage occurs.
When such a charging cable outlet is used, the contact is immediately opened when a leakage is detected, so that an electric shock accident or the like can be reliably prevented.

DESCRIPTION OF SYMBOLS 10 Outlet plug main body 11 Charging cable 12 Outlet connection surface 13 Current plug 14 Ground plug 15 Trip bar 16 Current indicator 17 Test button 20 Insulating plate 21 Fixed contact 22 Fixed contact 23 Mobile contact 24 Mobile contact 25 Elastic means 26 Rear end 27 Protrusion 30 Rotating body 31 Link pin 32 Latch member 33 Cross bar 34 Trigger lever 35 Shaft 36 Protrusion 37 Slope 38 Abutting portion 40 Upper piece 41 Lower piece 42 Frame 43 Long hole 44 Shaft 45 Engaging portion 51 ZCT
52 Determination circuit 53 Solenoid 54 Plunger 55 Engagement part 56 Upper bending part 60 Outlet tap main body 61 Space part 62 Contact surface 63 Current plug insertion part 64 Earth plug insertion part 65 Current supply plug receiving blade 66 Earth plug reception blade

Claims (6)

  An outlet plug placed at the end of a charging cable for automobiles. The tip of the outlet plug is always urged outward from the outlet connection surface by elastic means and protrudes inward when the outlet is inserted. A trip bar that is pushed in, a rotating body that is pressed and rotated by the rear end of the trip bar when the outlet is inserted, and a link mechanism that inserts a contact in conjunction with the rotation of the rotating body. An outlet plug for an automotive charging cable, comprising an abutting portion for allowing a rear end portion of a trip bar to be pushed in after being closed.   The rotating body is pivotally supported inside the outlet plug body, and its abutting portion is formed at the tip of a protrusion protruding from the peripheral edge of the rotating body, and inside this protrusion is the rear end of the trip bar. As the rotating body rotates, the point pressed by the rear end of the trip bar is moved to the tip of the protrusion on the slope as the rotating body rotates, and after the contact is closed, the rear end of the trip bar The outlet plug of the charging cable for an automobile according to claim 1, wherein the structure passes through the contact portion of the protrusion.   3. The outlet plug for an automotive charging cable according to claim 1 or 2, wherein an earth leakage tripping mechanism for pulling off a link mechanism and opening a contact when leakage is detected is incorporated in the outlet plug body.   An outlet tap into which an outlet plug attached to the tip of a charging cable for an electric vehicle is inserted. The outlet tap is normally urged outward by an elastic means from the contact surface with the outlet plug inside the outlet tap body. A trip bar that protrudes and is pushed inward when plugged into the outlet, a rotating body that is pressed and rotated by the rear end of the trip bar when plugged in, and a link mechanism that inserts a contact in conjunction with the rotation of the rotating body. An outlet tap for connecting a charging cable for an automobile, characterized in that the rotating body includes an abutting portion that allows a rear end portion of a trip bar to be further pushed in after the contact is closed.   The rotating body is pivotally supported inside the outlet tap body, and its abutting portion is formed at the tip of a protrusion protruding from the peripheral edge of the rotating body, and the rear end of the trip bar is located inside the protrusion. As the rotating body rotates, the point pressed by the rear end of the trip bar is moved to the tip of the protrusion on the slope as the rotating body rotates, and after the contact is closed, the rear end of the trip bar The outlet tap for connecting a charging cable for an automobile according to claim 4, wherein the structure passes through the contact portion of the protrusion.   6. The outlet tap for connecting a charging cable for an automobile according to claim 4 or 5, further comprising: an earth leakage tripping mechanism that opens the contact point by pulling off the link mechanism when the earth leakage is detected.

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