TWI330433B - Consent - Google Patents

Description

1330433 IX. Description of the Invention: [Technical Field] The present invention relates to a socket having a ground terminal to which a grounding wire is connected. 5 [Prior Art] Conventionally, as a socket having a ground terminal to which a ground line is connected, a socket having a ground terminal 2 as shown in Fig. 17 is provided. The ground terminal 2 includes: a ground terminal plate 21 having a screw hole 21a opened at the front (left side of FIG. 17); a terminal screw 10 screw 22 screwed to the ground terminal plate 21, and a washer 23 having a through terminal screw The screw insertion hole (not shown) of the 22 is clamped between the head of the terminal screw 22 and the ground terminal plate 21, and the thickness direction is directed to the front side of the ground terminal plate 21 in the front-rear direction. That is, by introducing a grounding wire (not shown) into the gasket to tie the terminal screw 22 to the grounding rafter 21, the grounding wire can be clamped between the grounding terminal block 2i and the collar 23, thereby The ground terminal block 21 is electrically connected. Further, at the upper and lower ends of the rim 23 of Fig. 17, a detachment preventing projection that bites the grounding wire to prevent the grounding wire from coming off is protruded. Further, the ground terminal 2 is housed in the terminal receiving recess 12 provided in the front surface of the casing ’. The door body 2 〇 3 that opens and closes the terminal housing recess 12 is attached to the casing! In addition, an electric wire insertion hole 18 through which an electric wire (not shown) is inserted is formed in the bottom surface of the terminal housing recess 12, and a gambler is inserted in the terminal housing recess 12 between the blood receiving terminal plate 21 and the electric wire insertion hole. The lock of the wire ^Hook 64 〇 [Patent 1] Japanese Patent Laid-Open No. 10-134894. 1330433 In the above-described conventional socket, the grounding wire inserted in the axial direction substantially in the front-rear direction (the horizontal direction in FIG. 17) from the lower end in FIG. 17 of the terminal housing recess 12 is bent in the upward direction in FIG. Since it is introduced between the weir 23 and the ground terminal plate 21, the force required to insert the ground wire becomes large, and it is difficult to insert the ground wire into the depth at which the upper retaining projection 2 is bitten. If the grounding wire is not (4) the position where the anti-drop projection 23e is bitten, it is considered that the holding power of the grounding terminal 2 to the grounding wire is insufficient, and the grounding wire is detached from the grounding terminal 2. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a socket capable of easily inserting a grounding wire into a position where a retaining projection provided at a ring of a grounding terminal is bitten in a grounding terminal. 15:-Invented socket, comprising: a casing mounted on a construction surface, at least a set of pin insertion openings are provided in front of the plurality; the blade receiving portions are respectively received in the casing and electrically connected to the power source And being in contact with the plug inserted from the plug insertion port; and the ground terminal is housed in the terminal housing recess provided at the front end of the housing and connected to the ground line. Wherein the 'grounding terminal has: a grounding terminal plate fixed to the outer casing, having a threaded hole opening at the front surface; a terminal screw having a head facing the front sub-plate (four); and a ring having a plug-in terminal screw The screw insertion hole is clamped between the head of the tweezers screw and the ground terminal plate by 妯+I, so that the thickness direction is oriented toward the front and rear direction and is mounted on the front side of the ground terminal plate, and the ground terminal plate The grounding wire is sandwiched between the ends of the gasket, and a guide slit that is open in the front-rear direction is provided on the eve of the gasket, and the end of the gasket in the depth direction of the slit is introduced into the 20 1330433 as viewed from the front, and the bite is protruded rearward. A grounding wire prevents the grounding wire from falling off. According to the invention, in the case where the guide slit is not provided (4), since the size of the gasket 5 in the direction in which the end edge of the retaining projection is provided is small as viewed from the front, the ground is introduced from the lead-in slit. When the wire is in the line, it is easy to make the anti-drop protrusion bite into the grounding wire. Further, when the grounding wire is introduced between the turn ring and the ground terminal plate, the degree of freedom in the position where the ground wire is introduced is increased, so that the work of connecting the ground wire to the ground terminal is facilitated. According to a second aspect of the invention, in the surface of the inner surface 10 of the terminal housing recessed portion, the position of the retaining projection is sandwiched between the leading slit and the leading slit, and the opening facing the retaining projection is provided. The grounding wire of the size of the grounding wire has a recessed portion. According to the invention, by inserting the front portion of the grounding wire into the grounding wire, the position at which the detachment preventing bite on the grounding wire is placed at a position more distant from the end of the grounding wire 15 is set. Therefore, the grounding wire is not provided. Compared with the case of the recessed portion, it is possible to further increase the holding force of the grounding terminal to the grounding wire. In the first aspect of the invention, at least a part of the inner surface of the vicinity of the opening of the recess portion for the grounding wire is inclined in a direction in which the inner diameter of the recess for the grounding wire is closer to the position at which the retaining is prevented. 20 directions. ～8hj々 The root 4 δ hai invention is more likely to be introduced into the grounding wire recess than the case where the inner surface of the recessed portion of the grounding wire is not inclined. According to a fourth aspect of the invention, in the third aspect of the invention, the 1330433 retaining portion for preventing the grounding wire from coming off is provided at the end edge ‘ of the ground terminal plate. According to the invention, the holding force of the ground terminal to the ground line is improved as compared with the case where the retaining portion is not provided. According to a fifth aspect of the invention, in the invention of any one of the first to fourth aspect, the turn ring has an introduction portion in the vicinity of the introduction slit, and the rear surface of the introduction portion faces the depth direction of the introduction slit as viewed from the front. Tilt forward. According to the invention, since the grounding wire is guided between the back surface of the lead-in portion and the ground terminal plate, the connection of the grounding wire to the grounding terminal is made easier than in the case where the lead-in portion is not provided. According to a sixth aspect of the invention, in the invention of any one of the first to fifth aspect, the end portion of the ground terminal plate in the depth direction of the introduction slit viewed from the front is provided with the front surface facing the end portion of the ground terminal plate On the other hand, the inclined portion 4 which is inclined rearward is provided with a guide portion which faces the inclined portion of the ground terminal plate, and the rear surface thereof is inclined along the inclined portion of the ground terminal plate. According to the D-Xuan invention, since the inclined portion of the ground terminal plate and the guide portion of the turn ring are inclined in the direction of the surface, the ground line is parallel to the surface to be formed. The size of the grounding terminal block and the cymbal ring is reversed. The length of the grounding wire clamped between the grounding terminal plate and the cymbal ring becomes longer, thereby increasing the holding force of the grounding terminal to the grounding wire. According to a seventh aspect of the invention, in the invention of any one of the first to sixth aspect, the introduction of the opening of the terminal housing recessed portion is provided in the vicinity of the terminal screw on the front surface of the casing, and the terminal screw is provided (10). Between the screwing portion and the head portion of the tooth and the grounding screw, the screw insertion hole having the outer diameter smaller than the screwing portion of the screwing portion can be inserted through the small diameter portion and cannot be inserted: 8 1330433 5 ^ size and shape, the washer is held by the terminal screw by inserting the small diameter portion into the screw insertion hole, and the dimension of the small-diameter portion in the front-rear direction is larger than the thickness of the γ dead/dust terminal disposed on the ground line and The total of the dimensions of the loop in the front-rear direction. According to the invention, when the γ-shaped crimp terminal is introduced between the head of the terminal screw or the ground terminal plate and the gasket, if the ¥-shaped crimp terminal is passed through the introduction recess, the deformation of the γ-shaped dust terminal is caused. Since the amount is small, the connection of the serpentine terminal to the ground terminal is facilitated compared to the case where the introduction recess is not provided. In addition, since the γ-shaped crimp terminal can be clamped between the head Κ) of the terminal screw and the turn ring, the γ-shaped dust is compared with the case where the terminal is sandwiched between the washer and the ground terminal plate. In the invention of any one of the first to seventh aspects, the invention includes the body, the cover portion, and the opening and closing terminal housing recess; :' ΐ:: Two of the merging sides are arranged in the direction of one end edge of the covering portion, and are respectively adjacent to the terminal accommodating recess; the outer casing is coupled; and the connecting portion is coupled to the joint portion: = two closing terminals The position of the accommodating recess and the axis of the direction in which the open end joints are arranged are rotated freely: ===: phase; _ part _ the engaged portion of the outer casing is engaged by the card claw and is disposed close to the other - The combination of the joint portions of the squares, the engaging claws are protruded and arranged according to the invention, and the protruding direction of the engaging claws with respect to the joint portion is set

9 1330433 is more compact in the direction away from the other joint, so assembly is improved. Because of the shape of the door body, the present invention is provided with a & mouth on the outer circumference of the gasket, and the ancient one has a known angle of the opening in the depth direction of the introduction slit which is opened in the rear direction, and is protruded rearward. There is a bite to be connected, and the spring is used to prevent the grounding wire from falling off. Therefore, compared with the case where the incision is not introduced, the anti-detachment protrusion is observed from the side. The 垫圈 is the washer in the direction of the ancestor =^ so it is easy to prevent the detachment when it is introduced into the grounding wire from the lead-in slit. The parent enters the ground wire. Further, when the grounding wire is introduced between the grounding terminal and the grounding terminal plate, the degree of freedom in the position where the grounding wire is introduced is improved, so that it is easy to connect the grounding wire to the grounding terminal. [Embodiment] Hereinafter, the best mode for carrying out the invention will be described with reference to the accompanying drawings. For the direction indication, the top, bottom, left and right are based on Fig. 3 (a). 'The left and right direction of Fig. 3 is the front and rear direction. That is, the up and down direction of Fig. 2 is called 舄 front and rear direction, the right and bottom of Fig. 2 The upper left direction is referred to as the left and right direction, and the lower left and upper right direction of Fig. 2 is referred to as the up and down direction. As shown in Fig. 2, the present embodiment has a casing 丨 which is composed of trunks 1a and 盍1 b, wherein the trunk The storage recessed portion 11 for accommodating the charging portion is provided on the front surface of the body 1a, and two sets of three sets of latch insertion openings 10 are provided side by side in the front and rear of the cover 1b, and are combined with the front side of the main body 1& The recessed portion 11. In addition, at the lower end portion of the cover 1b, a grounding terminal 12b is provided through the front and rear. The grounding terminal hole 12b is closed by the trunk body la and the rear side is opened.

The terminal housing recess 12 is formed by 10 ports. Further, the ground terminal 2 is housed in the terminal housing recess 12, and is connected to the ground line ec (see FIG. 1(a) and (b)). Further, the opening and closing terminal housing recess 12 is attached to the casing 1. Door body 3. The trunk 1a and the lid 1b are each formed of, for example, a synthetic resin molded article, and are joined by an assembly frame* which serves as a mounting frame for mounting on a construction surface (not shown). The assembly frame 4 is formed to have a size and shape 'according to the mounting frame defined by Jis C 8375', and has an exposure hole 4 形成 formed into three module sizes. On the right and left sides of the exposure hole 41, two coupling pieces 42 each having a chevron shape are protruded rearwardly and upwardly, and the coupling piece 42 is provided with an engagement hole 42a in the left-right direction. Further, a contact protrusion 43 is protruded rearward at the front end of the inner circumference of the engagement hole 42a. On the left and right side faces of the trunk body 1a and the cover 1b, two coupling projections 13a and 13b are protruded from the upper and lower sides, and a concave portion i3c is provided in front of the joint dog 13b of the cover lb. Further, the respective engaging projections 13a, 13b are inserted into the engaging holes 42a of the assembly frame 4, the abutting projections 43 of the assembly frame 4 are inserted into the recessed portions 13c of the engaging projections i3b of the cover ib, and the engaging projections 13a of the trunks 1a The rear side of the assembled frame 4 is locked by the bonding piece 42, whereby the front surface of the 盍lb is combined with the main body 1& and the cover in a form exposed from the exposure hole 41. Each of the latch insertion ports 10 is in the shape of a plug (not shown) having a grounding pole for a rated value of 125 V and 15 A, respectively, as specified in JIS C 83 3, as shown in FIG. 3, including: insertion voltage side pole The voltage side pin insertion port l〇a of the plug in the up-and-down direction; the left side of the voltage side pin insertion port 1〇a, and the 1330433 inserted into the ground side pole longer than the voltage side pin insertion port 1〇a in the up-and-down direction The ground-side plug insertion port 1 Ob of the latch; and the ground pin insertion port 1 插入c inserted into the pin of the ground pin inserted at the lower side of the position sandwiched by the voltage-side pin insertion port 10a and the ground-side pin insertion port 1 〇b . Further, the partitioning projections 11d which divide the storage recessed portion 为 into two storage chambers 11a to 11c which are arranged side by side are protruded from the storage recessed portion 11. The voltage-side conductive block 5a serving as the charging portion of the voltage-side electrode is housed in the storage chamber 11a on the right side, and the ground-side conductive block 5b serving as the charging portion of the ground-side electrode is housed in the storage chamber Ub on the left side, and is centered. The grounding conductive block 5c serving as a charging portion of the ground electrode is housed in the storage chamber j丨c. Each of the conductive blocks 5a to 9 is formed by performing punching and bending processing on the metal plate, respectively. The voltage-side conductive block 5a and the ground-side conductive block 讣 have terminal portions 51 that are arranged in two U-shapes in a vertical arrangement, and are provided on the upper and lower sides of the terminal portion 51 in the thickness direction (left-right direction). The two sides of the two pins 15 are received from the plugs of the plugs 1Ga and 1Gb respectively. 20, as shown in FIG. 4, the grounding conductive block 5c has two grounding blade receiving portions 53 which are arranged in two rows and are elastically latched from the left and right sides and are respectively inserted from the grounding pin insertion opening. a blade receiving connecting portion 54 that connects the grounding blade receiving portions 53; a terminal connecting portion 55 that protrudes forward from the lower end of the blade receiving connecting portion; and a leftward and distal ends that are respectively provided at the left and right ends of the terminal connecting portion 55 The two terminal portions & the following portions are configured such that the thickness direction: the upper and lower sides of the front-rear direction == wide: the portion 54a; the reinforcing ribs 54b projecting forwardly from the left and right ends of the bottom portion 54a; and the reinforcing ribs The vicinity of the upper end is provided to the front projection 12 1330433 and abuts against the rear surface of the cover lb 54c. The grounding conductive block 5c of the present embodiment has improved mechanical strength by the reinforcing ribs 54b. Further, by providing the anti-warpage portion 54c, even if the grounding blade receiving portion 53 is pulled in the forward direction when the plug is pulled out, the grounding conductive block 5c does not become forward 5 positions with respect to the casing i.

10 15 20, the terminal portion 51 of each of the conductive blocks 5a to 5c is a portion where the electric wire (not shown) introduced through the electric wire insertion hole (not shown) provided in the front and rear of the main body la is in contact with the conduction, and the lock The spring 61 and the release button 62 together constitute a quick junction terminal, and the lock cartridge 61 is disposed inside the terminal portion 51 to lock the electric wire between the inner surface of the terminal portion 51, and the release button is used for The lock button 62 is unlocked. Specifically, the release button 62 has an operation display portion 62a located outside the outer casing, and two legs projecting upwardly from the operation display portion 62a. A slit lle is provided on the left and right sides of the housing recess u of the trunk body u. The slit 丨 "connects the inside and the outside of the housing recess (10), opens to the front side of the trunk body la, and forms a communication housing recess between the back surface of the cover body and the back surface of the cover body; The through hole inside and outside of the } is released. F^2b is inserted into the cut σ i le , respectively, and is supported so as to be displaceable relative to the outer double. The left and right sides of the trunk body (4) are respectively formed as curved surfaces that expand the front portion and the center portion of the direction, and the release button 62 slides on the curved surface by operating the display portion in the forward and backward positions, and slightly shifts to $Ik. When the leg portion (4) is displaced toward the yoke, the shank portion (4) is displaced toward the accommodating recess portion (the inner portion 13 1330433), and the leg portions (4) are held by the electric wires and pressed on the mutually different sides. The lock (4) (4) is elastically deformed, thereby releasing the lock.

Further, the release button 62 is biased by the display spring 63 composed of a leaf spring housed in the housing recess u with respect to the casing w (i.e., in the opposite direction to the direction in which the lock is released). In the terminal portion 51, a wire insertion hole 5ia is formed to penetrate forward and backward of the front side of the wire insertion hole of the trunk h, and a locking protrusion is protruded forward in the left-right direction with respect to the wire insertion hole 51a. Sib. Here, the release button 62 has a locked portion 62c that is locked by the locking projections 5 lb in a front side of the position in the casing 1 sandwiched by the leg portions 62b. In the state where the lock spring 61 is not locked with the electric wire, the release button 62 is located at the front end portion of the movable range, and is locked to the rear by the locking portion 62c by the locked portion 62c. mobile. In this state, when the electric wire inserted from the 15 electric wire insertion hole passes through the electric wire insertion hole 51a and the locked portion 62c' is pressed forward to release the locking of the locking projection 53b to the locked portion 62c, the release button 62 is released. This is seen by the spring force of the display spring 63 being displaced rearwardly, and the user can clearly know the end of the connection of the wires. Further, the door body 3 is made of, for example, a synthetic resin molded article, and has a cover portion 31 that covers the terminal housing recess 12 as shown in FIG. 5, and a joint portion 3 that is provided with two blades arranged side by side and the outer side. And the connecting portion 3 3, the connecting portion 3 3 is interposed between each of the joint portion 3 2 and the covering portion 31, the wall thickness is formed smaller than the other portions, and the supporting covering portion 31 is such that the covering portion 31 is viewed from the left-right direction.

14 1330433

It is rotatable relative to the joint portion 32. In the front portion of each joint portion 32, engaging claws 32a are protruded in the left-right direction and in the direction of the joint portion close to the other. On the cover ib, on the upper side of the grounding terminal hole i2b, the left and right sides are arranged, and the front and rear I are provided with two coupling holes 14 through which the door body 3 is inserted through the coupling portion 32 and the respective engaging claws 32a, respectively. Engaged in the rear of Lb as shown in Fig. 6, the door body 3 is coupled to the outer casing i. Further, two insertion slits are arranged on the left and right ends of the cover portion η, and the insertion slits W and the terminal housing recesses 12 are connected to the ground. Hole of the grounding wire EC of terminal 2. 15 20 ... In addition, at the left and right end portions of the cover portion 31, the locked convex portions 34' are respectively protruded from the rear portions of the door body 3, and the respective locking convex portions 34 are protruded. The direction in which the protruding direction of the locking convex portion 34 protruding from the covering portion 31 is close to the connecting portion 33, that is, the upper side of the door body 3 = the large state is closed, and the claw is protruded. %. In the state of the door body 3, as shown in Fig. 7(a), the rotation of the cover portion 31 in the direction in which the door body 3 is opened is restricted by the engagement of the locking claws 100 to the rear of the 盍ib. The engagement of the broken claws 34a is performed by applying a force to the covering portion to elastically deform the engaged convex portion 34.

Here, in the state in which the door body 3 is closed, the position of the connecting portion 33 of the rotating shaft of the armrest portion 31 is located at the position of the rear side of the armor 3, and the arrow Am of FIG. 7 U) is shown. In the same manner, when the cover portion is rotated, the "initial opening of the _" is moved by the locking claw w in the left direction in the two directions (Fig. 7"). That is, when the door body 3 is opened, it is shared: The moving direction of the locking claw (4) and the claw to be gripped W

The releasing direction A2 of the locking of 15 is compared with the case where the protruding direction of the to-be-locked claw 34a is reversed as shown in FIG. 7(b), and is applied to the jammed card when the locking is released. Since the stress of the convex portion 34 or the locked claw 34a is reduced, the locked convex portion 34 or the locked claw 34a is less likely to be broken. Hereinafter, the ground terminal 2 of the present invention will be described. As shown in FIG. 8, the grounding terminal 2 has a terminal screw 22 which is screwed to the grounding step of the screw hole 21& and the screw hole 2丨& 23' The washer 23 is provided with a screw insertion hole 23a which is inserted through the screw insertion portion 23a of the terminal screw 22 which is screwed into the screw hole 2ia of the ground terminal plate 21, and the washer 23 is clamped. Between the head 22b of the terminal screw 22 and the ground terminal plate 2!, the grounding wire EC is sandwiched between the ground terminal plate 2 and the ground terminal plate 2A. The ground terminal plate 2 1 and the gasket 23 are formed, for example, by punching and bending a metal plate. The ground terminal plate 21 has a rectangular main body portion 21b that is long in the left-right direction through which the screw hole 21a is provided, and a leg portion 21'' that protrudes rearward from the outer periphery of the main body portion 21b (downward in FIG. 8). ' 21e. In the main body portion 21b, the portion where the screw hole 21a is provided is subjected to burring, and the periphery of the screw hole 21a protrudes rearward in a ring shape (see Fig. 1 (&) (b)). Further, the foot portion 2 on the upper side (the front side of Fig. 8). Further, a slit 2 1 f is provided at a central portion of the rear end, and a mounting portion 21g is protruded upward from the left and right sides of the slit 21 f. Each of the mounting portions 2lg is provided with a staking hole 21 h' in front and rear, and a staking projection 51c is protruded from the terminal portion 51 of the grounding conductive block 5c toward the front surface (the upper surface of FIG. 8), and is inserted through the rivet projection 51c. The staking holes 21 h are riveted, and the ground terminal plate 21 is mechanically and electrically connected to the ground conductive blocks 5c 1330433. As shown in Fig. 9, the full circumference 2 3 is formed into a shape in which a rectangular right lower end portion and a left lower end portion which are long in the left-right direction are respectively provided with a rectangular introduction slit 2 3 b. . Further, on the upper side of the introduction slit 2 3 b, 5 is bent rearward by the vicinity of the four corners of the washer 23, and is provided with a position closer to the left and right end portions and a larger protruding size protruding rearward. Debounce, 23d. The upper side retaining projection 23c is located at the end portion of the weir 23 which is the upper side in the depth direction of the introduction slit 23b as viewed from the front. • When the grounding wire EC is connected to the grounding terminal 2, as shown in Fig. 1 (a) (b) 10, when the grounding wire EC is clamped between the washer 23 and the grounding terminal plate 21, the anti-drop projections are passed. 23c and 23d bite into the grounding wire ^^, respectively, thereby preventing the grounding wire EC from falling off. In addition, since the protruding sizes of the respective retaining projections 23c and 23d projecting rearward are larger as they are closer to the left and right end portions, the grounding wire EC is less likely to fall to the left and right. Here, at the left and right ends of the ground terminal plate 21, the left and right sides of the front end portion of the upper leg portion 21c are smaller than the left and right slits 211 of the main body portion 2ib. By the slit 2, at the left and right ends # of the main body portion 21b, an angle is formed between the upper end surface and the front surface, and the grounding wire 咬 is bitten by the corner, so that the grounding wire EC is less likely to fall off. That is, at the 接地 of the ground terminal (4), the left and right end portions of the body portion 21b, the angle formed between the upper end surface and the front surface is the detachment preventing portion in the patent application. Further, the terminal screw 22 is formed so as to be detachably attached with a 螺钉 ring screw. That is, as shown in Figure i. As shown, the terminal screw 22 has an outer diameter smaller than the screw portion between the screw portion 22a and the head portion 22b having the thread;

17 is inserted into the small diameter portion 22c of the screw insertion hole 23a of the washer 23. Further, the inner diameter of the screw insertion hole 23a of the washer 23 is smaller than the outer diameter of the screw portion 22a of the terminal screw, and the screw portion 22a prevents the washer 23 from coming off. Further, the small diameter portion 22c is in the axial direction (front and rear direction). The upper length dimension is substantially the same as the thickness dimension of the washer 23. Therefore, even if the grounding wire Ec is interposed between the washer 23 and the ground terminal plate 2 1 only on the left and right sides of the terminal screw 22, The inclination or the sway of the washer 23 with respect to the ground terminal plate 21 is suppressed, so that the contact area of the washer 23 and the ground terminal plate 21 with the ground line EC can be ensured. Further, 'on the 盍1 b', the introduction slit 23b of the washer 23 The front surface of each of the lower portions is a guide surface i2c that is inclined rearward in the upward direction. That is, by inserting the ground line Ec along the guide surface 12c, the grounding wire can be easily introduced into the gasket 23 and the ground terminal plate. In addition, as shown in Fig. 3 (c), in the rear portion of the cover lb, the grounding wire recesses 15 which are opened downward and rearward are provided in the respective upper portions which are the introduction slits 2 3 b. By grounding the line EC The front portion is inserted into the grounding wire recess 15 to enable the retaining projection 23c to bite into the grounding wire EC at a position farther from the front portion of the grounding wire EC to improve the holding strength. Further, as shown in Fig. 11, at the grounding wire The inner surface of one side of the recessed portion 15 that is close to the other of the left and right of the recessed portion 5 is formed so as to be inclined downward in the vicinity of the lower opening, in the direction of increasing the opening of the recess portion 5 for the grounding line. In the inclined surface 15a, the ground line EC is guided by the inclined surface 15a as indicated by an arrow A3 of FIG. 1, whereby the ground line EC is more easily introduced into the grounding wire recess 15 by the above structure. The introduction slit 1330433 23b' is provided on the 23 such that the distance between the lower end of the loop 23 and the upper retaining projection 23c is changed, so that the ground wire EC can be introduced to the lower side of the washer 23 through the introduction slit 23b. The protrusion 23c easily bites into the ground line ec. Further, since the grounding line ec can be introduced to the upper side of the washer 23 by the introduction slit 23b', the upper and lower sides of the guide surface 12c are further increased. The degree of inclination makes the inclination tend to be moderated, and the bending of the grounding wire EC when the lower side of the gasket 23 is introduced can be reduced, and the force required for the insertion can be reduced, so that the grounding wire can be more easily performed (: connection to the grounding terminal 2) However, as shown in Fig. 12, the ground terminal 2 of the present embodiment can be connected to a Y-shaped crimp terminal γτ having a slit YT1 formed of a metal plate. For such a Y-shaped crimp terminal γτ and The ground terminal 2 is connected, a γ-shaped crimping tweezers is introduced between the washer 23 and the ground terminal plate 21, and a slit YT1 of the γ-shaped crimp terminal υτ is introduced into the screw portion 22a of the terminal screw 22, and then fastened. The terminal screw 22 is sufficient. Further, on the lower side of the terminal screw 22, a guide recess 416 which is open to the upper side and communicates with the terminal housing recess 12 is provided on the front surface of the cover 15b. The left and right dimensions of the introduction recessed portion 16 are larger than the left and right dimensions of the γ-shaped crimp terminal YT, and the meander crimp terminal γτ is introduced through the introduction recess 16 so that the meander crimp terminal ΥΤ can be easily connected to the ground terminal 2. Further, the dimension 20 of the small-diameter portion 22c in the axial direction (front-rear direction) may be larger than the thickness dimension of the washer 23 and the thickness dimension of the Y-shaped crimp terminal YT. If the s-sinusoidal structure is used, as shown in Fig. 13, since the Y-shaped crimping terminal Υτ can be sandwiched between the cymbal 23 and the head 22b of the terminal screw 22, it is necessary to crimp the crimping terminal. The connection of the γ-shaped crimp terminal ΥΤ is easier than when it is introduced to the rear side of the gasket 2 3 .

Further, the lower side of the introduction slit 23b of the gasket 23 may be provided with a retaining projection 23d instead of being bent rearward, but passing through the front side as shown in Figs. 14(a) and 15(Fig. 15 The urging is provided with an introduction portion 23e that is inclined rearward toward the upper side (the right side in FIG. 15) of the introduction slit 23b in the depth direction. According to this configuration, since the ground line EC is guided between the gasket 23 and the ground terminal plate 21 by the rear surface of the lead portion 23e, the connection of the ground line EC to the ground terminal 2 is made easier. Further, in the example of Fig. 4 (a) (b) and Fig. 15 "by changing the shape of the washer 23, the range in which the rear side of the retaining projection 23 is inclined upward toward the rear is in the up and down direction. Further, the length is increased, whereby the retaining projection 23 is provided as a guiding portion, and the grounding wire EC is guided so as to be obliquely rearward with respect to the front surface of the casing 1. Further, as shown in Fig. 14 (b), on the ground terminal plate 21, an inclined portion is protruded rearward from the left and right end portions of the main body portion 21b, and the front surface of the inclined portion 21j and the rear surface of the retaining projection 23c are provided. Opposite, and tilted upwards toward the top. The grounding wire EC is guided by the rear surface of the retaining projection 23c, and is inclined rearward with respect to the front surface of the outer casing 1, whereby the grounding wire EC passes through the grounding terminal plate 2 as compared with the case where the grounding wire EC is parallel with respect to the front surface of the outer casing 1. Since the grounding wire EC is sandwiched between the washer 1 and the washer 23, the holding force of the grounding terminal 2 to the grounding wire EC can be raised. Further, by providing the inclined portion 21j on the ground terminal plate 21, since the contact area of the ground terminal plate 21 and the grounding wire is increased, the connection reliability is improved. By the way, the grounding is not changed greatly. In the case of the shape of the terminal block 2A, the method of increasing the contact area of the grounding wire Ec and the grounding terminal plate 2' as shown in FIG. 16 has a method of providing the introduction groove 17 into which the grounding wire ec is introduced to the casing 1 The front terminal housing recessed portion 12 is disposed on the left and right sides, so that the ground line ec can be connected to the ground terminal 2 from the left-right direction as shown in the front head A4. [FIG. 1 is a view showing an embodiment of the present invention. Fig. 3 is an exploded perspective view showing the same as the above, and Fig. 2 is an exploded perspective view showing the same as the upper side, and Fig. 2 is an exploded perspective view showing the same as the above. The diagram of (a) is the main view, (b) is the A-A cross-sectional view of (&), and (c) is the rear view. Figure ^ is the diagram of the grounded conductive block on the table, (1) is the main view , (1) 疋 right view '(1) is (a B-B cross-sectional view, (d) is a top view of the vertical state, (b) is the sound _ corpse \, '丨, sinking said; ± 疋 table is not expanded after the right view, (c

This is a right side view showing the shape when the terminal housing recess is closed. Figure 6 is a view showing the gate salt having been viewed. The main part of the state in which the body is in the outer casing, 20, (b) is an exploded perspective view of the table. Fig. 7) is a cross-sectional view showing the main part of the same as the main part of the comparative example. Fig. 8 shows the same ground terminal. And the grounding conductive block diagram. Fig. 9 is a front view showing the main part of the main west ☆ J. 21 1330433 1 clothing different ", ~ "Jw plan. Figure 11 is the same as the main part of Figure 12 Fig. 13 showing the γ-shaped compression terminal of the same figure. Fig. 13 is a view showing the main part of the same figure, W(1) and U), respectively, showing the same white view. (1) indicates _, (b) The main part of the way. () The main part of the grounding terminal board

Fig. 15 is a right side view showing a main part of the mode of Fig. 14; (10) is a front view showing an example of a method of improving connection reliability. Fig. 17 is a cross-sectional view showing a conventional example. [Main component symbol description] Enclosure 1 trunk la cover lb ground terminal 2 door body 3 assembly frame 4 voltage side conductive block 5a ground side conductive block 5b ground conductive block 5C pin insertion port 10 voltage side pin insertion port 10a ground side pin insertion Port 1 〇b Grounding pin insertion port 1 〇e Storage recess 11, 12 Storage chamber 11a, 1 lb, 11c Split projection lid 1 le, 21i Ground terminal hole 12 b Guide surface 12c Bonding projection 13a, 13b Concave portion 13c Bonding hole 14 Grounding wire recess 15 inclined surface 15a introduction recess 16 introduction groove 17 ground terminal plate 21 screw hole 21 a main body portion 21 b leg portion 21c, 21d, 21e mounting portion 2 1 g

22 1330433

Riveting hole 21 h terminal screw 22 small diameter portion 22c introduction slit 23b covering portion 3 1 engaging claw 32a locking claw 34a engaging hole 42a wire insertion hole 5 1 a knife receiving portion 52 bottom portion 54a locking spring 61, 64 feet Portion 62b Grounding wire EC Crimping terminal YT Notch 21 i Screwing portion 22a Washer 23 Anti-drop projection 23c, 23d Inserting slit 3 1 a Connecting portion 3 3 Exposure hole 41 Abutment projection 43 Locking projection 51b Grounding blade receiving portion 53 Reinforcing rib 54b Release button 62 Engaged portion 62c Arrow A1, A3, A4 Notch YT1 Inclined portion 21j Head 22b Screw insertion hole 23a Introduction portion 23e Joint portion 32 Engagement projection 34 Bonding piece 42 Terminal portion 5 1 Riveting projection 51c blade receiving joint portion 54 anti-warping portion 54c operation display portion 62a display spring 63 direction A2 23

Claims (1)

X. Patent application scope: 1 ♦ A socket comprising: a casing mounted on a construction surface, at least one set of pin insertion openings are provided in front of the casing; and a plurality of blade receiving portions respectively received in the casing, and The power source is electrically connected and is in contact with the plug inserted from the plug insertion port; and the ground terminal is received in the terminal housing recess provided at the front end of the housing and connected to the ground line; wherein the ground terminal has: 10 ground terminal block, which is fixed to the outer casing, has a screw with a *71 · ^ terminal opening on the front surface, its head is screwed toward the threaded hole of the ground terminal plate at the front; and a washer having a screw with a (four) terminal screw The insertion hole is clamped between the head of the sub-threaded pin and the ground terminal plate, so that the thickness direction is oriented toward the rear direction of the fourth terminal, and is sandwiched between the ground terminal plate and the ground terminal plate. The grounding wire 'is provided with a guide slit that is open in the front-rear direction on the outer circumference of (4), and is turned rearward in the depth direction of the introduction slit as viewed from the front. A ground line is provided to prevent the bite off the ground line buckle retaining projection. 4 2. The socket according to the first aspect of the patent application, wherein the terminal is received and recessed. The inner surface of ρ is provided with a recessed portion for the grounding wire of a size that can be inserted into the grounding wire, which is located at a position from the front (four) and the guide slit (four) 1330433: the detachment preventing dog. The socket according to the second aspect of the invention, wherein at least a part of the inner surface near the opening of the grounding recess 4 is inclined obliquely in a direction which is closer to the position of the anti-drop projection and grounded The direction in which the inner diameter of the recess of the wire becomes larger. 4. The socket according to the first aspect of the invention, wherein the end edge of the ground terminal plate is provided with a φ-off portion that bites into the grounding wire to prevent the grounding wire from coming off. The socket according to the first aspect of the invention, wherein the gasket has an introduction portion in the vicinity of the guide slit, and the rear surface of the introduction portion is inclined forward in the depth direction of the introduction slit as viewed from the front. . The socket according to the above aspect of the invention, wherein the end portion of the ground terminal plate in the depth direction of the introduction slit viewed from the front is provided with the front surface facing the end of the ground terminal plate and rearward. The inclined inclined portion' is provided with a guide portion on the washer, the guide portion being opposed to the tilting portion of the ground terminal plate, and the rear surface thereof being inclined along the inclined portion of the ground terminal plate. The socket according to the item [i], wherein, in the vicinity of the terminal screw on the front surface of the outer casing, an introduction concave portion for increasing an opening of the terminal housing recess is provided, and the terminal screw is provided with a thread and The screw portion of the ground terminal plate is screwed to the head portion and has a small diameter portion having an outer diameter smaller than that of the screw portion. The screw insertion hole of the ring is a size that can be inserted through the small diameter portion and cannot be inserted into the screw portion. The shape, the loop is inserted by the terminal screw 25 1330433 by the terminal screw 25 1330433 by inserting the small diameter portion into the screw insertion hole. The dimension of the small diameter portion in the front-rear direction is larger than the thickness dimension of the γ-shaped crimp terminal provided on the ground line and the gasket. The total of the dimensions in the front and rear direction. 8. The socket according to claim 1, further comprising a door body having: a covering portion, which opens and closes the terminal receiving recess; D°卩, arranged in a direction along an edge of the covering portion There are two joint portions which are protruded rearward and are respectively coupled to the outer casing in the vicinity of the periphery of the terminal accommodation recess; and are accommodated to be coupled to the joint portion, and the terminal accommodation recess portion is arranged in the closed terminal joint portion with respect to the outer casing. Between the positions, the cover portion is rotatably supported about the axis along the direction of the spoon; the direction of the protruding portion of the direction cover portion is overlapped by 15 and the snap-fit portion is engaged with the outer casing ", = the engaging claw and the 7 on the outer casing ~ The direction of the joint of the square. The claw protrusion is set close to the other 26