JP4466282B2 - Plug connector - Google Patents

Description

  The present invention relates to a plug connector.

  Conventionally, as shown in FIGS. 9 (a) to 9 (d), it has a horizontally long rectangular parallelepiped shape, and is embedded in a construction surface with its front surface exposed with its longitudinal direction substantially parallel to the horizontal direction. Two rectangular blade-shaped plug blade insertion ports 102a and 102b into which two parallel plug blades of the charging unit are respectively inserted at both ends in the longitudinal direction of the front surface of the device body 100, and grounding One outlet port 101 including a contact insertion port 103 into which a pole contactor is inserted is provided, and two plug blade insertion ports 102 a and 102 b of each outlet port 101 are arranged side by side in the longitudinal direction of the body 100. In addition, there is provided an insertion connector in which a contact insertion port 103 is arranged at one side of the container body 100 in the short width direction substantially in the middle between the two plug blade insertion ports 102a and 102b (for example, patents). Reference 1).

  Housed in the container body 100 are parallel blades inserted from the blade insertion ports 102a and 102b and the contact insertion port 103 and blade receiving springs (not shown) respectively connected to the contacts. In addition, a terminal plate (not shown) electrically connected to the blade receiving spring of the charging unit is housed. And the electric wire insertion port 104 for inserting the electric wire connected to the terminal board of a charging part is opened in the rear surface of the container 100, and the electric wire inserted from this electric wire insertion port 104 is made into the front-end | tip of a screw part. A terminal screw 105 that presses against the terminal plate is screwed into a screw hole provided on the side surface of the container body 100.

Furthermore, a conductive plate 106 electrically connected to the blade receiving spring of the ground electrode is disposed along the longitudinal direction of the vessel 100 on the rear surface of the vessel 100 so as to cover a part of the conductive plate 106. A protruding portion 107 is provided on the protruding portion 107, and a terminal screw 109 that presses the electric wire inserted from the electric wire insertion opening 108 opened on the side surface of the protruding portion 107 against the conductive plate 106 at the tip of the screw portion is provided in the protruding portion. 107 is screwed into the screw hole on the rear surface.
Japanese Patent No. 2656772

  In the plug connector having the above-described configuration, the wire insertion ports 104 and 108 are opened on different surfaces of the body 100 between the charging unit and the ground electrode, and the terminal screws 105 and 109 are provided. It was necessary to insert an electric wire or perform a screw tightening work, and the workability was poor.

  In addition, since the conductive plate 106 and the terminal screws 105 and 109 of the ground electrode are exposed to the outside of the body 100, the conductive plate 106 and the terminal screws 105 and 109 are corroded under the influence of the external environment (water droplets, gas, etc.). The contact resistance of the electric wire is increased and the contact reliability may be lowered.

  This invention is made | formed in view of the said problem, The place made into the objective is providing the plug connector which improved work reliability while improving work reliability.

In order to achieve the above object, the invention of claim 1 is a horizontally long rectangular parallelepiped, and is embedded in the construction surface with the front surface exposed so that the longitudinal direction is substantially parallel to the horizontal direction. Two contactor insertion ports into which the two contactors of the charging unit are inserted respectively and contactor insertion ports into which the contactors of the ground electrode are inserted on both longitudinal sides of the front surface of the device body Each outlet port is provided, and the two contactor insertion ports on the charging unit side of each outlet port are arranged in the longitudinal direction of the body, and the contactor insertion port on the grounding electrode side is connected to the charging unit Is located near the one side in the short width direction of the container at the middle of the two contact insertion holes on the side, and is connected individually to the contacts inserted from each contact insertion opening inside the container Blade receiving springs, terminal plates electrically connected to the blade receiving springs, and openings on the rear surface of the container Two contactors of the charging part are housed by holding a locking spring for electrically connecting the electric wire to each terminal plate by sandwiching the electric wire inserted from the electric wire insertion port between each terminal plate. Are connected side by side in the short width direction of the vessel body, and a connection part for electrically connecting one of the two terminal plates and a corresponding blade receiving spring; A connecting portion for electrically connecting the other of the two terminal plates and the corresponding blade receiving spring is disposed on both sides of each blade receiving spring in the short width direction of the container , and 2 of the charging portion. Among the individual contacts, the terminal plate that is electrically connected to the contact on the voltage electrode side is electrically connected to the terminal plate that is electrically connected to the contact on the neutral electrode side and the contact on the ground electrode. Each terminal board is arranged side by side in the short width direction of the container so as to be arranged between the terminal boards connected to the device .

The invention of claim 2 is a horizontally long rectangular parallelepiped, and includes a container body embedded in a construction surface with the front surface exposed so that the longitudinal direction is substantially parallel to the horizontal direction. One outlet port comprising two contact insertion ports into which the two contacts of the charging unit are respectively inserted and a contact insertion port into which the contact of the ground electrode is inserted is provided on both sides in the longitudinal direction of the battery. The two contactor insertion ports on the charging unit side of each outlet port are arranged side by side in the longitudinal direction of the vessel body, and the contactor insertion port on the ground electrode side is inserted with two contactors on the charging unit side The blade receiving springs are arranged in the middle part of the mouth near one side in the short width direction of the container, and are respectively connected to the contacts respectively inserted from the respective contact insertion openings inside the container, Inserted from the terminal plate that is electrically connected to the blade receiving spring and the wire insertion opening that opens on the rear surface of the container. A lock spring that electrically connects the electric wire to each terminal plate by holding the electric wire between each terminal plate is housed, and two contacts to which the two contacts of the charging unit are connected respectively. The terminal plates are arranged side by side in the short width direction of the vessel body, and a connection portion for electrically connecting one of the two terminal plates and the corresponding blade receiving spring, and the inner portion of the two terminal plates. And connecting portions for electrically connecting the other blade receiving springs to the corresponding blade receiving springs are arranged on both sides of each blade receiving spring in the short width direction of the vessel body, and a plurality of holding the electric wire between each terminal plate The locking spring is formed in the same shape, and the distance between the terminal plate of the ground electrode and the locking spring is set to be shorter than the distance between the terminal plate of the charging unit and the locking spring. To do.
The invention of claim 3 is the invention according to any one of claims 1 and 2, wherein each terminal plate and each locking spring are located in the middle part of the container body in the longitudinal direction between the two outlets. In addition, two wire insertion openings are provided on the rear surface of the container body, arranged in the longitudinal direction of the container body at substantially constant intervals, and two for each terminal plate. The wire insertion ports are arranged in two rows, each of the two locking springs holding the wires inserted from the two wire insertion ports between the terminal plates, and two for each terminal plate. A release member that releases the wire connection state by simultaneously pressing the provided locking springs in the direction away from the terminal plate is housed inside the container.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the two blade receiving springs that are electrically connected to the contact on the voltage electrode side among the two contacts of the charging unit, and The terminal plate and the two blade receiving springs and the terminal plate, which are electrically connected to the contact on the neutral pole side, are arranged at symmetrical positions inside the container.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the blade receiving springs and the corresponding terminal plates are integrally formed.

A sixth aspect of the invention is characterized in that, in any one of the first to fourth aspects of the invention, each of the blade receiving springs and the corresponding terminal plate are formed separately.

According to the first aspect of the present invention, in the plug connector having one outlet on each side in the longitudinal direction of the front surface of the container body, the contacts inserted respectively from the three contact insertion holes provided in the outlet are The blade receiving spring, the terminal plate electrically connected to each blade receiving spring, and the locking spring for holding the electric wire between each terminal plate are housed inside the container. Since the spring, the terminal plate and the lock spring are not easily affected by the external environment and are not easily corroded, the contact reliability with the electric wire is improved. In addition, since the wire insertion port of the electric wire connected to each terminal plate is opened on the rear surface of the container body, the insertion direction of the electric wire becomes one direction and the workability is improved. Furthermore, since the electric wire is not screwed to the terminal plate as in the conventional plug connector, there is an advantage that the contact reliability is not lowered by loosening of the screw. In addition, two terminal plates respectively connected to the two contacts of the charging unit are arranged side by side in the short width direction of the vessel body, and one of the two terminal plates is connected to the blade receiving spring. Since the connecting portion and the connecting portion that connects the other of the two terminal plates and the blade receiving spring are arranged on both sides of each blade receiving spring in the short width direction of the container body, There is an effect that a sufficient insulation distance can be secured. In addition, since each connecting portion is arranged on both sides of the blade receiving spring in the short width direction of the container body, the blade receiving spring does not get in the way when forming the connecting portion, and the operation of forming the connecting portion is performed. There is also an effect that it can be easily performed. In addition, the insulation distance between the terminal plate connected to the contact on the voltage electrode side and both side surfaces in the short width direction of the device body can be sufficiently secured, and the possibility of causing an accident such as an electric shock can be reduced. There is also.

According to the second aspect of the present invention, in the plug connector having one outlet on each side in the longitudinal direction of the front surface of the container body, the contacts inserted respectively from the three contact insertion holes provided in the outlet are The blade receiving spring, the terminal plate electrically connected to each blade receiving spring, and the locking spring for holding the electric wire between each terminal plate are housed inside the container. Since the spring, the terminal plate and the lock spring are not easily affected by the external environment and are not easily corroded, the contact reliability with the electric wire is improved. In addition, since the wire insertion port of the electric wire connected to each terminal plate is opened on the rear surface of the container body, the insertion direction of the electric wire becomes one direction and the workability is improved. Furthermore, since the electric wire is not screwed to the terminal plate as in the conventional plug connector, there is an advantage that the contact reliability is not lowered by loosening of the screw. In addition, two terminal plates respectively connected to the two contacts of the charging unit are arranged side by side in the short width direction of the vessel body, and one of the two terminal plates is connected to the blade receiving spring. Since the connecting portion and the connecting portion that connects the other of the two terminal plates and the blade receiving spring are arranged on both sides of each blade receiving spring in the short width direction of the container body, There is an effect that a sufficient insulation distance can be secured. In addition, since each connecting portion is arranged on both sides of the blade receiving spring in the short width direction of the container body, the blade receiving spring does not get in the way when forming the connecting portion, and the operation of forming the connecting portion is performed. There is also an effect that it can be easily performed. In addition, since the plurality of lock springs for holding the electric wire between each terminal plate are formed in the same shape, the effect of reducing the cost by reducing the types of parts by making the lock springs common is effective. is there. In addition, compared to the wire connected to the terminal plate of the charging unit, a wire with a thin wire diameter is connected to the terminal plate of the ground electrode, but the distance between the terminal plate of the ground electrode and the lock spring is Since the distance between the terminal block of the charging unit and the lock spring is shorter, it is possible to connect wires with different wire diameters while using a common lock spring, and the chain between the charging unit and the grounding electrode Since the lock spring is common, the charging part and the grounding electrode are not mistakenly assembled during assembly.
According to invention of Claim 3, since each terminal board and each locking spring are arrange | positioned in the site | part between the outlet ports provided in the longitudinal direction both sides of each container , each terminal board and each locking spring The spring can be configured independently of the blade receiving spring, so that the terminal plate and the lock spring are not deformed by the influence of the contact inserting / extracting operation, and the product quality is improved. Moreover, since the two wire insertion openings provided for each terminal board are arranged in the longitudinal direction of the container with a substantially constant interval, the two wire insertion openings are arranged in the longitudinal direction of the container. Compared to the case where they are arranged, the size of the container in the short width direction can be reduced, the storage property when embedded in the construction surface is improved, and the wire inserted from each of the two wire insertion holes is elastic. Since the interval between the locking springs in contact with each other can be made substantially constant, the release member provided corresponding to each terminal plate can be made common to reduce the cost. Further, since two wire insertion openings provided for each terminal board are opened on the same surface, the connection work can be easily performed even when a flat cable such as a VVF line is connected.

According to the invention of claim 4 , of the two contacts of the charging unit, the two blade receiving springs and the terminal plate connected to the contact on the voltage electrode side, and the contact on the neutral electrode side are electrically connected. Since the two blade receiving springs and the terminal plate that are connected to each other are arranged at symmetrical positions inside the body, the blade receiving spring and the terminal plate on the voltage electrode side and the blade receiving on the neutral electrode side Since the spring and the terminal plate can be used in common, and the gap between the blade receiving spring and the terminal plate on the voltage pole side and the blade receiving spring and the terminal plate on the neutral pole side can be made substantially constant. There is an effect that the insulated insulation distance can be secured.

According to the invention of claim 5 , since the blade receiving spring and the corresponding terminal plate are integrally formed, the positional accuracy of the blade receiving spring with respect to the terminal plate is increased, and the displacement of the blade receiving spring is less likely to occur. Therefore, there is an effect that the contact reliability between the contact and the blade receiving spring is improved.

According to the invention of claim 6 , since the blade receiving spring and the corresponding terminal plate are formed separately, by sharing the blade receiving spring used for a plurality of types of terminal plates, the types of components can be reduced. There is an effect that the cost can be reduced by reducing the cost.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction shown in FIG. 1B, and the front in FIG. Accordingly, the lower side in FIG.

  FIG. 2 is an exploded perspective view showing the outlet (plug-in connector) of the present embodiment. The outlet body 1 is composed of a synthetic resin body 2 and a cover 3 coupled by a metal assembly frame 4. 3 dimensions of unit wiring equipment that can be attached to a series of mounting frames that are standardized for embedded wiring equipment (JIS, etc. in Japan) (3 module dimensions) Is formed).

  The body 2 is formed in a horizontally long substantially box-like shape with an open front surface, and a bulging portion 5 that bulges outward in the vertical direction is provided at the center of both upper and lower side surfaces along the longitudinal direction. Convex portions 6 project from the front edges of the left and right side portions.

  As shown in FIGS. 2 and 3, the inside of the body 2 is partitioned by a partition wall 7, and blade receiving storage chambers 8 and 8 for storing blade receiving springs to be described later on both sides in the left and right direction are terminals to be described later in the center in the left and right direction. A terminal storage chamber 9 for storing the board is provided.

  Furthermore, the inside of each blade receiving storage chamber 8 is partitioned into three chambers by a partition wall 10, and a storage portion 8a for storing a blade receiving spring of a charging unit (L phase) in the upper right half is a charging unit in the upper left half. A storage portion 8b for storing the (N-phase) blade receiving spring and a storage portion 8c for storing the ground electrode (E-phase) blade receiving spring are provided on the lower side. Further, the interior of the terminal storage chamber 9 is also divided into three rooms by a partition wall 11, and a storage portion 9a for storing the terminal plate of the charging unit (L phase) at the center in the vertical direction is provided on the upper side of the charging unit (N phase). A storage portion 9b for storing the terminal plate is provided, and a storage portion 9c for storing the ground electrode (E phase) terminal plate is provided on the lower side. And storage part 8a, 8a, 9a which accommodates the conductive member (it consists of a blade receiving spring and a terminal board) of a charge part (L phase), and storage part 8b, 8b which accommodates the conductive member of a charge part (N phase), The storage portions 8c, 8c, and 9c for storing the conductive member 9b and the ground electrode (E phase) are in communication with each other through a notch portion 7a formed in the partition wall 7, respectively. A pair of wire insertion ports 12 communicating with the outside are formed in the bottom wall of the terminal storage chamber 9 in the horizontal direction for each of the storage portions 9a, 9b, 9c, and an operation is performed between the pair of wire insertion ports 12. The hole 13 is formed through (see FIG. 1C).

  On the other hand, the cover 3 is formed in a horizontally long substantially box-like shape with an open rear surface, and an overhanging portion 14 that projects the front surface of the bulging portion 5 protrudes from the center of the upper and lower side surfaces along the longitudinal direction. Convex portions 15, 15 project from the left and right sides of the portion 14 at positions corresponding to the convex portions 6, 6 of the body 2. In addition, the position of the front surface of the overhang | projection part 14 and the convex parts 15 and 15 is formed in substantially the same height.

In addition, on the front surface of the cover 3 (that is, the front surface of the container body 1), there are provided one outlet port 16 composed of a set of three contactor insertion ports 17a, 17b, and 17c on both sides in the longitudinal direction. Two plugs (not shown) with a ground electrode can be connected simultaneously. Here, out of the two contacts (flat plug blades) of the charging unit included in the plug, the contact insertion ports 17a and 17a into which the contacts on the voltage electrode side (L phase) are inserted, and the neutral electrode side The contact insertion holes 17b, 17b into which the (N-phase) contact (flat plug blade) is inserted are formed in a rectangular hole shape so that the longitudinal direction is parallel to the short width direction of the body 1. It is provided side by side in the longitudinal direction of the container 1, and the contact insertion holes 17 b, 17 b on the neutral pole side have longer dimensions in the longitudinal direction than the contact insertion holes 17 a, 17 a on the voltage electrode side. is there. Further, a contact insertion port 17c into which a contact of a ground electrode (a ground pin having a substantially U-shaped cross section) is inserted is formed in a substantially semicircular shape, and a device is provided in the middle of the contact insertion ports 17a and 17b. It is provided near one side (lower side) in the short width direction of the body 1. As described above, since the contact insertion ports 17a and 17b of the outlet port 16 are provided so that the longitudinal direction thereof is parallel to the short width direction of the container 1, an L-shaped plug (perpendicular to the insertion / extraction direction) is provided in the outlet port 16. When the plug is pulled out in the direction, the cord of the plug is pulled out in a direction parallel to the short width direction of the container 1 and may interfere with the plug connected to the other outlet 16. In addition, two L-type plugs can be connected to the outlets 16 and 16 at the same time.

  The assembly frame 4 has an elongated plate shape, and both end portions in the longitudinal direction are bent obliquely downward, and the central portions are side pieces 18 and 18 placed on the overhanging portion 14 and the convex portion 15 of the cover 3. And the connecting pieces 19 and 19 for connecting the end portions of the side pieces 18 and 18 in the longitudinal direction, respectively, are formed in a square frame shape, and each side piece 18 has a U-shape protruding rearward on both sides in the longitudinal direction. A pair of protruding pieces 20 are provided. Thus, when the body 2 and the cover 3 are coupled, the assembly frame 4 is put on the cover 3 from the front side with the cover 3 placed on the front surface of the body 2, and the side piece 18 of the assembly frame 4 is placed. , 18 are placed on the overhanging portion 14 and the convex portion 15, the convex portions 2 a on the left and right side surfaces of the body 2 are locked to the front side edges of the connecting piece 19, and the convex portions 6 of the body 2 and the cover 3. 15 is inserted inside the protruding piece 20 of the assembly frame 4. At this time, the protrusion 18 a protruding from the inner edge of the side piece 18 is engaged with the positioning recess 15 a provided in the protrusion 15 of the cover 3, whereby the assembly frame 4 is positioned with respect to the cover 3. Then, the body piece 1 is assembled by fixing the body 2 and the cover 3 by the assembly frame 4 by bending the center piece of the protruding piece 20 forward and engaging with the concave portion 6a on the rear surface of the convex portion 6. Further, on the outer edges of the side pieces 18 and 18 of the assembly frame 4, mounting claws 18 b and 18 b are provided so as to be engaged with mounting holes provided in the mounting frame (not shown). By engaging with the mounting hole, the receptacle body 1 can be attached to the mounting frame.

  On the other hand, a pair of voltage electrode side blades that are electrically and mechanically connected to the charging part and the contact of the grounding electrode inserted through the pair of contact insertion ports 17a to 17c, respectively, inside the container 1 The receiving springs 22 and 22, the neutral pole side blade receiving springs 26 and 26, and the grounding pole side blade receiving springs 30 and 30 are housed so as to be located at the back of the contact insertion ports 17 a, 17 b, and 17 c. . Here, each pair of voltage pole side blade receiving springs 22 and 22 and neutral pole side blade receiving springs 26 and 26 are formed in a substantially inverted Ω shape by processing a plate-like metal member, and the locking spring 40 , 40 and the release button 41 are integrally formed at both ends of the voltage electrode side terminal plate 23 and the neutral electrode side terminal plate 27 constituting the quick connection terminal via connection pieces 24 and 28, respectively. The springs 22 and 22, the voltage electrode side terminal plate 23, and the connection pieces 24 and 24 constitute the voltage electrode side conductive member 21, and the neutral electrode side blade receiving springs 26 and 26 and the neutral electrode side terminal plate 27. The connection pieces 28 and 28 constitute a neutral electrode side conductive member 25. Also, the pair of ground pole side blade receiving springs 30 and 30 are formed in a substantially inverted Ω shape by processing a plate-like metal member, and together with the locking springs 40 and 40 and the release button 50 constitute a quick connection terminal. The grounding electrode side terminal plate 31 is integrally formed at both ends via connection pieces 32, and the earthing electrode side blade receiving springs 30, 30, the grounding electrode side terminal plate 31, and the connection pieces 32, 32 are connected to the grounding electrode side conductive member. 29 is configured.

  FIG. 5 shows the voltage electrode side conductive member 21 and the neutral electrode side conductive member 25. Since both the conductive members 21 and 25 have exactly the same shape, the voltage electrode side conductive member 21 will be described as an example. . The voltage electrode side conductive member 21 is provided with strip-shaped connecting pieces 24 and 24 extending from both ends of the inverted U-shaped central piece 23a, and the voltage electrode side blade receiving springs 22 and 22 from both ends of the connecting pieces 24 and 24, respectively. Are integrally formed. An inverted U-shaped contact piece 23c extends from the upper edge of the central piece 23a through a π-shaped connection piece 23b. The terminal piece 23 is formed by the center piece 23a, the connection piece 23b, and the contact piece 23c. Is configured. The distance between one (left side in FIG. 3) voltage pole blade receiving spring 22 and terminal plate 23 is larger than the distance between the other (right side in FIG. 3) voltage pole blade receiving spring 22 and terminal plate 23. The terminal plate 23 is formed closer to the left blade receiving spring 22.

  Here, the central piece 23a and the contact piece 23c face each other substantially in parallel, and the vertical piece portions at both ends of the central piece 23a and the vertical piece portions at both ends of the contact piece 23c are opposed to each other in the thickness direction. Locking springs 40, 40 are juxtaposed between the vertical piece portion of the central piece 23a and the vertical piece portion of the contact piece 23c, respectively, and between the two locking springs 40, 40 provided for the terminal plate 23. A release button 41 is arranged (see FIG. 3). The voltage electrode side conductive member 21 and the neutral electrode side conductive member 25 are inserted into the notches 7a of the partition wall 7 at both ends of the central pieces 23a, 27a of the terminal plates 23, 27 and contact pieces 23c, 27c. Are accommodated in the accommodating portions 9a and 9b in a state of being in contact with the partition wall 11, and the pair of blade receiving springs 22 and 26 are accommodated in the accommodating portions 8a and 8b through the notches 7a, respectively.

  Moreover, the terminal plates 23 and 27 of the charging unit are arranged side by side in the short width direction of the container 1, and the connection pieces 24 and 24 that connect the one terminal plate 23 and the corresponding blade receiving springs 22 and 22, and the other The connection pieces 28 and 28 for connecting the terminal plate 27 and the corresponding blade receiving springs 26 and 26 are arranged on both sides of the blade receiving springs 22 and 26 in the short width direction of the body 1 and are far from the different poles. Since the connection pieces 24 and 28 are connected between the blade receiving springs 22 and 26 and the terminal plates 23 and 27 on the side, a sufficient insulation distance can be secured between the connection pieces 24 and 28 having different polarities. Further, since the blade receiving springs 22 and 26 do not get in the way when the connecting pieces 24 and 28 are bent, there is an advantage that the connecting pieces 24 and 28 are easily bent and the dimensional accuracy is stabilized. Furthermore, a conductive member 21 composed of two blade receiving springs 22 and 22 and a terminal plate 23 on the voltage pole side, and a conductive member 25 composed of two blade receiving springs 26 and 26 and a terminal plate 27 on the neutral pole side, 5 are arranged at positions symmetrical with respect to the center position O of the body 1 inside the body 1 as shown in FIG. 5, so that the conductive member 21 on the voltage pole side and the conductive member 25 on the neutral pole side Since the gap between the conductive member 21 on the voltage electrode side and the conductive member 25 on the neutral electrode side can be made substantially constant, averaging is performed in a limited space inside the body 1. There is also an advantage that the insulated distance can be secured.

  On the other hand, the grounding electrode side conductive member 29 has substantially the same shape as the voltage electrode side conductive member 21 and the neutral electrode side conductive member 25, and as shown in FIGS. 2 to 4, an inverted U-shaped central piece 31a. The strip-shaped connection pieces 32 and 32 are extended from both ends of each of the contact pieces 32 and 32, and the grounding pole side blade receiving springs 30 and 30 are integrally formed from both ends of the connection pieces 32 and 32, respectively. An inverted U-shaped contact piece 31c extends from the upper edge of the center piece 31a via a π-shaped connection piece 31b. The terminal strip 31 is formed by the center piece 31a, the connection piece 31b, and the contact piece 31c. Is configured. In addition, the space | interval of the ground pole side blade receiving springs 30 and 30 and the terminal board 31 of both sides is formed in the substantially same space | interval, and the terminal board 31 is formed in the approximate center of the blade receiving springs 30 and 30.

  The center piece 31a and the contact piece 31c of the terminal plate 31 face each other substantially in parallel, and the vertical piece portions at both ends of the center piece 31a and the vertical piece portions at both ends of the contact piece 31c are opposed to each other in the thickness direction. The locking springs 40, 40 are juxtaposed between the vertical piece portion of the central piece 31a and the vertical piece portion of the contact piece 31c, respectively, and between the two locking springs 40, 40 provided for the terminal plate 31. The release button 41 is arranged in The ground electrode-side conductive member 29 is inserted into the housing portion 9c in a state where both ends of the center piece 31a of the terminal plate 31 are inserted into the cutout portion 7a of the partition wall 7 and the contact piece 31c is in contact with the partition wall 11. At this time, the blade receiving springs 30 and 30 on both sides are accommodated in the storage portions 8c and 8c through the notches 7a.

  Next, the lock spring 40 and the release button 41 that constitute the quick connection terminal device together with the terminal plates 23, 27, and 31 will be described. The locking spring 40 is formed by bending one end of a belt-shaped leaf spring into an S shape to form a contact piece 40a, and bending the other end into a J shape to form a locking piece 40b. It is formed in the shape which connected between the piece 40a and the locking piece 40b continuously and integrally by the connection piece 40c. Here, the contact piece 40a and the locking piece 40b protrude on the same side in the thickness direction with respect to the connection piece 40c, and the distal ends of the contact piece 40a and the locking piece 40b are separated from the connection piece 40c toward the distal end side. And are extended so as to be substantially parallel to each other. When the locking spring 40 is mounted between the central piece 23a of each terminal plate 23 ... and the contact piece 23c ..., the contact piece 40a and the chain 40 are brought into contact with the central piece 23a ... The lock piece 40b is opposed to the contact piece 23c. Moreover, the front-end | tip part of the contact piece 40a and the locking piece 40b is arrange | positioned so that the distance with connection piece 23b ... may be made small toward the front end side.

The electric wire insertion port 12 described above is formed at a portion corresponding to the contact piece 23c of the terminal plate 23 and the contact piece 40a and the locking piece 40b of the locking spring 40, and the body through the electric wire insertion port 12. When an electric wire (not shown) is inserted into the inside, the tip of the electric wire is sandwiched between the contact piece 23c, the contact piece 40a and the locking piece 40b, and the electric wire comes into contact with the contact piece 23c. The conductive members 21 are electrically connected to the electric wire, and the electric wire is mechanically held so that the leading edge of the locking piece 40b bites into the electric wire so that the electric wire does not come out of the container 1. In particular, since the locking piece 40b is inclined so as to reduce the distance from the contact piece 23c in the direction in which the electric wire is inserted through the electric wire insertion port 12, the locking piece 40b is against the force in the direction of pulling out the electric wire. It is difficult to bend and reliably prevents the wire from being pulled out. Here, the electric wire is an insulation-coated electric wire, and the insulation coating is removed so that the core wire is exposed at a portion to be inserted into the container body 1. Therefore, the fact that the electric wire is clamped between the contact piece 23c and the lock spring 40 actually means that the core wire is clamped. Note that the distance between the center piece 31a of the terminal plate 31 of the ground electrode and the contact piece 31c is narrower than that of the terminal plates 23 and 27 of the charging unit, and therefore, the locking spring 40 and the contact piece 31c. Since the gap between the two is narrow, the same locking spring 40 is used for the terminal part of the ground electrode to which the electric wire having a smaller wire diameter than the charging part is connected to ensure sufficient contact pressure. Since the lock springs 40 are all the same, the charging portion and the ground electrode are not mistakenly assembled during assembly. Here, applicable wire ranges 3.1mm ² ~5.5mm ² connection wires of the charging electrode, if applicable wire range of the connection wires of the ground electrode is 1.5 mm ² to 4 mm ^2, the terminal plate of the charging electrode 23 and 27 (contact pieces 23c, 27c) and the locking spring 40 (G1 dimension in FIG. 4) is 0.8 mm, and the terminal plate 31 (contacting piece 31c) of the ground electrode and the locking spring 40 The gap (dimension G2 in FIG. 4) is preferably 0.2 mm.

  An operation hole 13 is provided in the bottom wall of the body 2 at a portion corresponding to the release button 41. The release button 41 is made of a synthetic resin molded product, and is disposed between two lock springs 40 provided for each of the terminal plates 23, 27, 31, and on the rear side of the lock piece 40 b of the both lock springs 40. The two pressing pieces 41a that abut each have a shape protruding from the side surface. The operation hole 13 has a shape that allows insertion of a tool such as the tip of a minus driver. When the tool is inserted into the operation hole 13 and the release button 41 is pressed forward, the locking piece 40b is moved from the pressing piece 41a. By receiving the pressing force, it bends away from the contact piece 23c. Therefore, if the tool is inserted into the operation hole 13 and the release button 41 is pressed while the electric wire is connected to the terminal plates 23, 27, and 31 as described above, the locking piece 40b bends away from the electric wire. The mechanical holding of the electric wire is released, and the electric wire can be pulled out from the container 1. Here, the release button 41 is provided with two pressing pieces 41a, and simultaneously presses the locking pieces 40b of the two locking springs 40 provided on the terminal plates 23, 27 and 31, respectively. When two electric wires are connected to 23, 27, 31, the mechanical holding of the two electric wires can be released simultaneously by pressing one release button 41.

  The outlet of the present embodiment has the above-described configuration, and the conductive members 21, 25, 29 including the blade receiving springs 22, and the terminal plates 23, and the locking springs 40 are all housed inside the container body 1. In addition, since the electric circuit portion does not exist outside, the conductive members 21, 25, 29 and the lock spring 40 are not easily affected by the external environment and are not easily corroded. Since the screw terminal is not used in the terminal portion as in the case of the outlet, contact reliability is not deteriorated by loosening of the screw. Moreover, the quick connection terminal part which consists of the terminal board 23 ... of each electrically-conductive member 21,25,29 and the lock spring 40 is in the site | part between the outlet ports 16 and 16 provided in the longitudinal direction both sides of the container 1. FIG. Since each terminal plate 23 and the locking spring 40 can be configured independently of the blade receiving spring 40, the terminal plates 23 and the locking spring 40 are affected by the contact insertion / extraction operation. Since there is no deformation, the quality of the product is stable, and the deterioration of the insulation performance can be prevented. Compared to the case where the quick connection terminal portion overlaps the outlet port 16 in the longitudinal direction of the body 1, the body 1 The size in the short width direction or the front-rear direction can be reduced, the storage property when embedded in the construction surface is improved, and the construction can be performed easily. Furthermore, the terminal plate 23 on the voltage electrode side is arranged in the center in the short width direction at the center in the left-right direction of the container 1, and the terminal plate 27 on the neutral electrode side and the terminal plate 31 on the ground electrode side are arranged in a short width. Since it is arranged on both sides in the direction, a sufficient insulation distance is ensured between the terminal plate 23 connected to the contact on the voltage electrode side and both side surfaces (surfaces to be gripped by hand) of the container 1 in the short width direction. It is possible to reduce the possibility of accidents such as electric shock during hotline construction.

  One of the two wire insertion openings 12 provided for each terminal plate 23 is a feed wiring insertion opening, and the wire insertion opening and the feed wiring insertion opening are provided side by side in the longitudinal direction of the body 1. Therefore, as shown in FIG. 8, the width direction dimension (vertical dimension) of the body 1 is smaller than the case where the wire insertion port 12 ′ and the feed wiring insertion port 12 ′ are arranged side by side in the short width direction. It is possible to improve the storage property when being embedded in the construction surface, and the construction can be easily performed. The wire insertion ports 12 are all opened on the rear surface of the body 1, and the left three wire insertion ports 12 and the right three wire insertion ports 12 are formed in two rows at substantially constant intervals. Therefore, even when a flat cable such as a VVF line is connected as the electric wire and the feed wiring, the connecting operation of the electric wire can be easily performed. Furthermore, since the distance between the locking spring 40 inserted from the left wire insertion port 12 and the locking spring 40 elastically contacting the electric wire inserted from the right wire insertion port 12 is substantially constant, different applicable wires In spite of being connected, the release buttons 41 (release members) provided corresponding to the respective terminal plates 23 can be shared, and the cost can be reduced. Further, since the wire insertion port 12 and the operation hole 13 are all open on the back surface of the body 2 (container 1), the insertion direction of the wire into the wire insertion port 12 and the insertion direction of the tool into the operation hole 13 are the same. The workability is improved because the wire connection work and the wire release operation can be performed from one direction.

  Further, the terminal plates 23, 27, and 31 used for the above-described conductive members 21, 25, and 29 are configured to be able to cope with the case where the core wire of the electric wire is a stranded wire. Specifically, as shown in FIG. 5 and FIG. 6, a knurled portion 33 in which irregularities are alternately repeated in the insertion direction of the electric wire at the contact portion of the terminal plate 23 with the electric wire (vertical piece portion of the contact piece 23 c...). Form. If such a knurled portion 33 is formed, the friction with respect to the electric wire is increased, and even a thin stranded wire can be connected, and dirt adhered to the surface of the electric wire can be removed to some extent by the unevenness of the knurled portion 33. . Further, in the vicinity of the distal end portion of the vertical piece portion of the abutting piece 23c, a pair of contacts are provided on both sides of the portion where the locking piece 40b can be contacted and the wire introduced into the container 1 through the wire insertion port 12 contacts. Guide protrusions (not shown) may be provided, and the pair of guide protrusions are arranged so as to be aligned in the width direction of the vertical piece portion of the contact piece 23c, and the ends close to each other are part of the spherical surface. By forming the wire so as to have a so-called SR shape, when a wire whose core wire is a stranded wire is introduced from the wire insertion opening 12, even if the wire spreads apart, the wire runs on the guide protrusion. The electric wire is securely clamped between the lock piece 40b and the guide projection, and the guide projection has an SR shape, so that the electric wire is guided to pass between the two guide projections as much as possible. In short, even if the electric wire is a stranded wire, it is possible to reduce the possibility that the electric wire spreads apart, and the position of the guide protrusion is in the vicinity of the tip of the locking piece 40b, so that the electric wire runs on the guide protrusion. Even in such a state, a relatively large contact pressure can be applied to the electric wire from the locking piece 40b, and electrical connection of the electric wire can be ensured reliably. Thus, since each terminal board 23,27,31 can respond also when the core wire of an electric wire is a strand wire, the wire type of an applicable electric wire increases and usability improves.

  By the way, in the above-mentioned embodiment, as shown in FIG. 6, since the blade receiving springs 22 and the corresponding terminal plates 23 are integrally formed to form the respective conductive members 21, the blades for the terminal plates 23. Since the positional accuracy of the blade receiving springs 22 is increased and the displacement of the blade receiving springs 22 is less likely to occur, there is an advantage that the contact reliability between the contact and the blade receiving springs 22 is improved. As shown, the blade receiving springs 22 and the corresponding terminal plates 23 may be formed separately. That is, a hole (not shown) in the center piece of the blade receiving spring 22 formed by bending the band plate in an inverted Ω shape, and holes in the caulking pieces 24a, 24a extending from the connection pieces 24, 24 The terminal plates 23 and the blade receiving springs 22 are coupled by caulking (not shown) through the caulking rod 34, and the terminal plates 23 corresponding to the blade receiving springs 22 and so on are combined. Since the blade receiving springs 22 used for a plurality of types of terminal plates 23 are used in common, the types of components can be reduced and the cost can be reduced.

The outlet of this embodiment is shown, (a) is a front view, (b) is a top view, (c) is a bottom view, and (d) is a right side view. It is an exploded perspective view same as the above. It is a front view of the state which removed the cover same as the above. It is side sectional drawing of the state which removed the cover same as the above. It is explanatory drawing explaining arrangement | positioning of the electrically-conductive member same as the above. It is an external appearance perspective view of a conductive member same as the above. It is an external appearance perspective view of another electroconductive member same as the above. It is a rear view of the comparative example same as the above. The conventional outlet is shown, (a) is a front view, (b) is a bottom view, (c) is a rear view, (d) is a left side view.

Explanation of symbols

1 Body 12 Electric Wire Insertion Port 16 Outlet Port 17a, 17b, 17c Contact Insertion Port

Claims (6)

It has a horizontally long rectangular parallelepiped shape, and is provided with a container embedded in the construction surface with the front surface exposed so that the longitudinal direction is substantially parallel to the horizontal direction, on both sides in the longitudinal direction of the front surface of the container body , Two outlets for inserting the two contacts of the charging unit, and one outlet port including a contactor insertion port for inserting the contact of the ground electrode are provided. The two contactor insertion ports on the charging unit side are arranged side by side in the longitudinal direction of the vessel body, and the contactor insertion port on the ground electrode side is an intermediate part of the two contactor insertion ports on the charging unit side Are disposed near one side of the container body in the short width direction, and blade receiving springs respectively connected to contacts respectively inserted from the respective contact insertion ports, Inserted from the terminal board that is electrically connected to the spring and the wire insertion opening that opens on the rear surface of the container. In elastic contact with the wire to be the by sandwiching between the respective wires each terminal plates made by housing a locking spring for connecting the electric wires electrically to the respective terminal boards,
The two terminal plates to which the two contacts of the charging unit are respectively connected are arranged side by side in the short width direction of the vessel body, and the blade receiving spring corresponding to one of the two terminal plates And a connecting portion for electrically connecting the other of the two terminal plates to a corresponding blade receiving spring in the width direction of the container body. Arranged on both sides of the spring ,
Of the two contacts of the charging unit, a terminal plate electrically connected to a contact on the voltage electrode side, a terminal plate electrically connected to a contact on the neutral electrode side, and the ground electrode An insertion connector , wherein the terminal plates are arranged side by side in the short-width direction of the container body so as to be arranged between the terminal plates electrically connected to the contacts . It has a horizontally long rectangular parallelepiped shape, and is provided with a container embedded in the construction surface with the front surface exposed so that the longitudinal direction is substantially parallel to the horizontal direction, on both sides in the longitudinal direction of the front surface of the container body , Two outlets for inserting the two contacts of the charging unit, and one outlet port including a contactor insertion port for inserting the contact of the ground electrode are provided. The two contactor insertion ports on the charging unit side are arranged side by side in the longitudinal direction of the vessel body, and the contactor insertion port on the ground electrode side is an intermediate part of the two contactor insertion ports on the charging unit side Are disposed near one side of the container body in the short width direction, and blade receiving springs respectively connected to contacts respectively inserted from the respective contact insertion ports, Inserted from the terminal board that is electrically connected to the spring and the wire insertion opening that opens on the rear surface of the container. In elastic contact with the wire to be the by sandwiching between the respective wires each terminal plates made by housing a locking spring for connecting the electric wires electrically to the respective terminal boards,
The two terminal plates to which the two contacts of the charging unit are respectively connected are arranged side by side in the short width direction of the vessel body, and the blade receiving spring corresponding to one of the two terminal plates And a connecting portion for electrically connecting the other of the two terminal plates to a corresponding blade receiving spring in the width direction of the container body. Arranged on both sides of the spring,
A plurality of locking springs for holding the electric wire between each terminal plate are formed in the same shape, and the distance between the terminal plate of the grounding electrode and the locking spring is the distance between the terminal plate of the charging unit and the locking spring. the plugin connector you characterized in that it is set to a shorter distance than the distance. Each terminal plate and each locking spring are arranged in the longitudinal direction of the container body and located between the two outlets, and each terminal plate is disposed on the rear surface of the container body. Each of the two electric wire insertion openings is arranged in the longitudinal direction of the vessel body with a substantially constant interval, and the electric wires inserted from the two electric wire insertion openings are respectively held between the terminal plates. Two locking springs and a release member for releasing the wire connection state by simultaneously pressing the two locking springs provided for each terminal plate in a direction away from the terminal plate. The plug connector according to claim 1, wherein the plug connector is housed inside . Of the two contacts of the charging unit, two blade bearing springs and terminal plates that are electrically connected to the contacts on the voltage electrode side, and 2 that are electrically connected to the contacts on the neutral electrode side The plug connector according to any one of claims 1 to 3 , wherein the blade receiving springs and the terminal plates are arranged at symmetrical positions inside the container body .   The plug connector according to any one of claims 1 to 4, wherein each blade receiving spring and a corresponding terminal plate are integrally formed. The plug connector according to any one of claims 1 to 4, wherein each blade receiving spring and a corresponding terminal plate are formed separately .

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