WO2017195750A1 - Dispositif de borne et dispositif de câblage le comprenant - Google Patents

Dispositif de borne et dispositif de câblage le comprenant Download PDF

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Publication number
WO2017195750A1
WO2017195750A1 PCT/JP2017/017461 JP2017017461W WO2017195750A1 WO 2017195750 A1 WO2017195750 A1 WO 2017195750A1 JP 2017017461 W JP2017017461 W JP 2017017461W WO 2017195750 A1 WO2017195750 A1 WO 2017195750A1
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WIPO (PCT)
Prior art keywords
terminal
electric wire
terminal device
pressing
axis direction
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Ceased
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PCT/JP2017/017461
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English (en)
Japanese (ja)
Inventor
将一 新谷
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of WO2017195750A1 publication Critical patent/WO2017195750A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member

Definitions

  • the present invention generally relates to a terminal device and a wiring device including the same, and more particularly to a terminal device that is connected to an electric wire by inserting the electric wire and a wiring device including the terminal device.
  • a terminal device having a so-called quick connection structure that can be connected without using a screw is known for the purpose of facilitating the connection of electric wires to a wiring device such as a switch (see, for example, Patent Document 1).
  • the terminal device described in Patent Document 1 includes a terminal portion (terminal plate) made of a conductive material and a lock spring.
  • the terminal portion is formed in a C shape, and the lock spring is housed in a space surrounded by the terminal portion.
  • the lock spring is formed of a central piece, a lock piece and a pressing piece by bending an elastic plate.
  • the locking piece and the pressing piece are formed at both ends of the central piece.
  • the terminal portion and the member that presses the electric wire against the terminal portion are separate parts, for example, the assembly accuracy of the terminal portion and the lock spring, or temperature characteristics
  • the pressing force of the electric wire against the terminal portion may vary.
  • the contact state of the electric wire with respect to the terminal portion may become unstable.
  • the present invention has been made in view of the above reasons, and an object of the present invention is to provide a terminal device in which the contact state of the electric wire with respect to the terminal portion is less likely to be unstable, and a wiring device including the terminal device.
  • the terminal device includes a terminal portion, a pressing portion, a locking portion, a facing portion, and a side wall portion.
  • the pressing portion is arranged so as to face one surface of the terminal portion, and sandwiches an electric wire inserted along an insertion direction from an insertion port between the terminal portion.
  • the locking part is disposed so as to face the one surface of the terminal part, and contacts the electric wire to restrict the movement of the electric wire toward the insertion port.
  • the facing portion is disposed so as to face the one surface of the terminal portion, and forms an accommodating space in which the pressing portion and the locking portion are accommodated between the terminal portion.
  • the side wall portion connects the terminal portion and the facing portion.
  • the side wall portion connects at least one end in the width direction of the terminal portion and the facing portion.
  • the width direction is a direction parallel to the one surface of the terminal portion and perpendicular to the insertion direction.
  • a wiring device includes the terminal device and a device body that houses the terminal device.
  • FIG. 1A is a plan view showing a basic configuration of a terminal device according to Embodiment 1 of the present invention.
  • FIG. 1B is a cross-sectional view taken along the line Z1-Z1 of FIG.
  • FIG. 2 is a perspective view showing the basic configuration of the terminal device of the above, viewed from the negative direction of the Y axis.
  • FIG. 3A is a perspective sectional view taken along the line Z1-Z1 of FIG. 3B is a perspective cross-sectional view taken along the line Z1-Z1 of FIG. 1A showing the basic configuration of the terminal device of the above, viewed from the negative direction of the Y axis.
  • 4A is a cross-sectional view taken along the line Z2-Z2 of FIG.
  • FIG. 1A showing a state where no electric wire is connected to the terminal device of the above.
  • 4B is a cross-sectional view taken along the line Z2-Z2 of FIG. 1A, showing a state where the electric wires are connected to the terminal device of the above.
  • FIG. 5 is an exploded perspective view showing the entire configuration of the terminal device according to the first embodiment and viewed from the positive direction of the Y axis.
  • FIG. 6A is a perspective sectional view taken along the line Z1-Z1 of FIG. 7A, showing the overall configuration of the above terminal device, as viewed from the positive direction of the Y axis.
  • FIG. 6B is a perspective sectional view taken along the line Z1-Z1 of FIG.
  • FIG. 7A showing the overall configuration of the terminal device of the above, viewed from the negative direction of the Y axis.
  • FIG. 7A is a plan view showing the overall configuration of the terminal device of the above.
  • FIG. 7B is a cross-sectional view taken along the line Z2-Z2 of FIG. 7A, showing the overall configuration of the above terminal device.
  • FIG. 8A is a cross-sectional view taken along the line Z2-Z2 of FIG.
  • FIG. 8B is a cross-sectional view taken along the line Z2-Z2 of FIG.
  • FIG. 9 is a perspective view showing the wiring device according to Embodiment 1 of the present invention.
  • FIG. 10 is a perspective view of the terminal device according to the second embodiment of the present invention, viewed from the positive direction of the Y axis.
  • the terminal device 1 is a so-called quick connection terminal in which connection with the electric wire 100 is performed by inserting the electric wire 100 as shown in FIGS. 1A and 1B.
  • the terminal device 1 includes a terminal portion 2 having conductivity.
  • the electric wire 100 is indicated by an imaginary line (two-dot chain line).
  • the terminal device 1 is used for wiring apparatuses, such as a switch or an outlet (outlet), for example.
  • the wiring device 10 (see FIG. 9) provided with the terminal device 1 will be described in the section “(2.8) Wiring device”.
  • the terminal device 1 includes a pressing portion 3 and a locking portion 4 in addition to the terminal portion 2 as shown in FIGS. 1A to 3B.
  • the electric wire 100 inserted from the insertion port 11 is inserted between the terminal portion 2 and the pressing portion 3, whereby the electric wire 100 is electrically connected to the terminal portion 2. Further, the electric wire 100 is inserted between the terminal portion 2 and the lock portion 4, so that the movement toward the insertion port 11 is restricted by the lock portion 4, and the electric wire 100 is prevented from coming off.
  • the insertion port 11 may be a space through which the electric wire 100 introduced between the terminal portion 2 and the pressing portion 3 and the locking portion 4 passes, and the terminal device 1 includes the insertion port 11 with the substance.
  • the insertion port 11 may be an insertion hole 81 (see FIG. 6B) with a substance formed in a case 8 (see FIG. 5) described later.
  • the electric wire 100 is an insulated electric wire in which a core wire made of a conductor is covered with an insulating coating, only the distal end portion of the electric wire 100 from which the insulating coating is peeled, that is, only the core wire is inserted from the insertion port 11.
  • the electric wire 100 may be either a single wire whose core wire is a single conductor or a stranded wire whose core wire is a plurality of conducting wires.
  • the “insertion direction” that is orthogonal to the X-axis direction and the direction in which the electric wire 100 is inserted is defined as the Y-axis direction, and the direction in which the electric wire 100 is inserted is described as the positive direction of the Y-axis.
  • the “width direction” (the direction perpendicular to the paper surface of FIG.
  • the terminal device 1 is a two-pole type terminal device that can connect up to two electric wires 100. That is, the terminal device 1 has two insertion ports 11, and two electric wires 100 can be simultaneously connected through the two insertion ports 11. In this terminal device 1, since the two electric wires 100 are electrically connected to the one terminal portion 2, the two electric wires 100 connected to the terminal device 1 are electrically connected to each other via the terminal portion 2. Will be connected to. Therefore, the terminal device 1 is used as a feed terminal, for example.
  • the terminal device 1 includes two members, a terminal block 12 and a spring block 13.
  • the terminal block 12 and the spring block 13 are separate members. That is, the terminal block 12 and the spring block 13 are members separated from each other and independent.
  • the terminal block 12 includes a terminal portion 2 and a pressing portion 3.
  • the spring block 13 includes a lock part 4.
  • the terminal block 12 is made of a conductive metal plate.
  • the spring block 13 is made of an elastic metal plate.
  • the terminal block 12 (pressing portion 3) and the spring block 13 (locking portion 4) are made of different materials.
  • the spring block 13 is combined with the terminal block 12 so as to be accommodated in a space surrounded by the terminal block 12.
  • the terminal block 12 includes a facing portion 5, a side wall portion 6 and a connecting portion 30 in addition to the terminal portion 2 and the pressing portion 3.
  • 1B is a cross-sectional view taken along the line Z1-Z1 of FIG. 1A.
  • 3A and 3B are perspective sectional views taken along the line Z1-Z1 of FIG. 1A, respectively.
  • the facing part 5 is arranged so as to face the terminal part 2.
  • the facing portion 5 forms an accommodating space 50 in which the pressing portion 3 and the locking portion 4 are accommodated between the facing portion 5 and the terminal portion 2.
  • the side wall portion 6 connects the terminal portion 2 and the facing portion 5.
  • the side wall portion 6 connects at least one end portions in the Z-axis direction of the terminal portion 2 and the facing portion 5. That is, the terminal portion 2 and the facing portion 5 are connected to each other at the one end portion in the Z-axis direction by the side wall portion 6.
  • the connecting part 30 connects the terminal part 2 and the pressing part 3.
  • the connecting portion 30 connects the pressing portion 3 and the end portion of the terminal portion 2 on the side opposite to the insertion port 11 in the Y-axis direction. That is, the terminal portion 2 and the pressing portion 3 are connected to each other at the end portion (upper end portion in FIG. 1B) opposite to the insertion port 11 in the Y-axis direction by the connecting portion 30.
  • the terminal block 12 is made of, for example, copper (Cu).
  • the terminal device 1 is a two-pole terminal device, and a plurality of (here, two) pressing parts 3, side wall parts 6, and connecting parts 30 are provided.
  • the terminal device 1 employs a configuration that is plane-symmetric in the Z-axis direction in which the two pressing portions 3 (or the two side wall portions 6 or the two connecting portions 30) are arranged. Therefore, unless otherwise specified, one of the two pressing parts 3 will be described below, and the description of the other pressing part 3 will be omitted as appropriate. Similarly, one side wall part 6 of the two side wall parts 6 will be described, and description of the other side wall part 6 will be omitted as appropriate. Further, one of the two connecting portions 30 will be described, and the description of the other connecting portion 30 will be omitted as appropriate.
  • the terminal portion 2, the pressing portion 3, the facing portion 5, the side wall portion 6, and the connecting portion 30 are integrally formed.
  • the terminal part 2, the two pressing parts 3, the facing part 5, the two side wall parts 6, and the two connecting parts 30 are made of a single metal plate.
  • the terminal part 2, the pressing part 3, the opposing part 5, the side wall part 6, and the connection part 30 which comprise the terminal block 12 are stamped and bent to one metal plate. Is formed.
  • the terminal part 2 has a rectangular plate shape.
  • the terminal portion 2 is configured so that one surface 20 in the thickness direction (X-axis direction) faces the pressing portion 3. That is, the electric wire 100 inserted from the insertion port 11 is introduced between the one surface 20 of the terminal portion 2 and the pressing portion 3 so as to come into contact with the one surface 20 of the terminal portion 2 so as to be electrically connected to the terminal portion 2. Connected.
  • a slit 23 penetrating the terminal portion 2 in the thickness direction is formed along the Y-axis direction in the center portion of the terminal portion 2 in the Z-axis direction.
  • the slit 23 is formed across both ends of the terminal portion 2 in the Y-axis direction.
  • the terminal portion 2 is divided into two in the Z-axis direction by the slit 23.
  • a part of the release member 9 described later is inserted into the accommodation space 50 between the terminal portion 2 and the facing portion 5.
  • the facing portion 5 is disposed at a position facing the one surface 20 of the terminal portion 2.
  • the facing portion 5 has a rectangular plate shape and is configured so that the inner side surface 51 formed of one surface in the thickness direction (X-axis direction) faces the one surface 20 of the terminal portion 2.
  • the inner surface 51 of the facing portion 5 and the one surface 20 of the terminal portion 2 are parallel to each other.
  • an accommodation space 50 for accommodating the pressing portion 3 and the locking portion 4 is formed between the inner side surface 51 of the facing portion 5 and the one surface 20 of the terminal portion 2.
  • the details will be described in the column “(2.3) Spring block”, but the facing portion 5 positions the spring block 13 on the inner surface 51.
  • the side wall portion 6 has a rectangular plate shape.
  • the two side wall portions 6 protrude in the positive direction of the X axis from both end portions of the facing portion 5 in the Z-axis direction, and the tip portions of the side wall portions 6 are connected to the terminal portion 2. That is, the two side wall portions 6 connect both end portions of the terminal portion 2 and the facing portion 5 in the Z-axis direction, respectively.
  • the two side wall portions 6 are configured so that the inner side surfaces 60 formed of one surface in the thickness direction (Z-axis direction) face each other.
  • the inner side surface 60 of one side wall part 6 and the inner side surface 60 of the other side wall part 6 are parallel to each other. Thereby, an accommodation space 50 is formed between the pair of inner side surfaces 60 of the two side wall portions 6.
  • the cylindrical body 120 includes the terminal portion 2, the pressing portion 3, the facing portion 5, and the side wall portion 6.
  • the cylindrical body 120 is formed into a rectangular cylinder extending in the Y-axis direction from one metal plate by bending.
  • a pair of side plates facing in the X-axis direction is configured by the terminal portion 2 and the facing portion 5
  • a pair of side plates facing in the Z-axis direction is configured by the two side wall portions 6.
  • the connecting portion (first corner portion 61) between the terminal portion 2 and the side wall portion 6 and the connecting portion (second corner portion 62) between the facing portion 5 and the side wall portion are both. It is curved with a predetermined radius of curvature.
  • the terminal portion 2, the facing portion 5, and the side wall portion 6 are formed by processing the belt-shaped metal plate into a cylindrical shape with both sides in the Y-axis direction being opened.
  • the space surrounded by the one surface 20 of the terminal portion 2, the inner side surface 51 of the facing portion 5, and the inner side surface 60 of the side wall portion 6, that is, the space inside the cylindrical body 120 constitutes the accommodation space 50. . Therefore, the pressing part 3 and the locking part 4 are accommodated inside the cylindrical body 120.
  • a slit 23 is formed in a part of the cylindrical body 120 in the circumferential direction over the entire length of the cylindrical body 120 in the Y-axis direction. That is, the cylindrical body 120 is not a complete square tube, but is divided in the circumferential direction by the slits 23 formed in a part in the circumferential direction. Both end portions of the expanded state of the metal plate constituting the cylindrical body 120 correspond to portions of the terminal portion 2 that face each other across the slit 23 in the terminal portion 2.
  • the opening part 121 formed in the end surface by the side of the insertion port 11 in the Y-axis direction among the cylindrical bodies 120 has a rectangular opening shape.
  • the opening 121 is a hole for passing the electric wire 100 inserted from the insertion port 11 to a space (accommodating space 50) surrounded by the cylindrical body 120. Further, as will be described in detail in the section of “(2.6) Overall configuration”, the opening 121 is used for introducing the spring block 13 into the accommodation space 50 when the terminal block 12 and the spring block 13 are combined. It becomes a hole.
  • the dimensional relationship is defined so as to have substantially the same length in the Z-axis direction.
  • the dimension of the side wall part 6 in the X-axis direction is slightly shorter than the dimension of the facing part 5 (or the terminal part 2) in the Z-axis direction.
  • the dimensional relationship is defined between the facing portion 5 and the terminal portion 2 so that the terminal portion 2 is shorter in the Y-axis direction.
  • the opposing part 5 and the side wall part 6 have a dimensional relationship defined so as to have substantially the same length in the Y-axis direction.
  • the end edge (the lower end edge in FIG.
  • the end of the cylindrical body 120 opposite to the insertion port 11 in the Y-axis direction (the upper end edge in FIG. 1B) has the opposite portion 5 and the side wall 6 in the positive direction of the Y-axis as compared to the terminal portion 2.
  • the shape protrudes in the direction of.
  • the pressing portion 3 is disposed in the accommodation space 50 formed inside the cylindrical body 120.
  • the pressing portion 3 is disposed at a position facing the first portion 21 on the one surface 20 of the terminal portion 2 in the X-axis direction (opposing direction).
  • the first portion 21 is a portion facing the pressing portion 3 in the one surface 20 of the terminal portion 2.
  • the pressing portion 3 is configured to sandwich the electric wire 100 inserted along the Y-axis direction from the insertion port 11 between the first portion 21.
  • the pressing part 3 includes a first pressing piece 31, a second pressing piece 32, and a third pressing piece 33.
  • the first pressing piece 31, the second pressing piece 32, and the third pressing piece 33 are connected to the first pressing piece 31, the second pressing piece 32, the third pressing piece from the connecting portion 30 side (that is, the side opposite to the insertion port 11).
  • the pressing pieces 33 are arranged in the Y-axis direction in this order.
  • the first pressing piece 31 has a rectangular plate shape and is substantially parallel to the one surface 20 of the terminal portion 2. Of the first pressing piece 31, the end portion on the opposite side to the insertion port 11 in the Y-axis direction is connected to the connecting portion 30.
  • a second pressing piece 32 is connected to an end of the first pressing piece 31 on the insertion port 11 side in the Y-axis direction.
  • the second pressing piece 32 has a rectangular plate shape, and is inclined with respect to the one surface 20 of the terminal portion 2 so as to approach the terminal portion 2 as it approaches the insertion port 11 in the Y-axis direction.
  • a third pressing piece 33 is connected to an end of the second pressing piece 32 on the side opposite to the first pressing piece 31 in the Y-axis direction.
  • the third pressing piece 33 has a rectangular plate shape, and is inclined with respect to the one surface 20 of the terminal portion 2 so as to approach the terminal portion 2 as the distance from the insertion port 11 increases in the Y-axis direction.
  • the third pressing piece 33 and the second pressing piece 32 constitute a structure having a substantially V-shaped cross section perpendicular to the Z-axis direction.
  • the pressing portion 3 is closest to the one surface 20 of the terminal portion 2 in the contact portion 34 formed by the connection portion between the second pressing piece 32 and the third pressing piece 33.
  • the pressing portion 3 has a contact portion 34 that is curved so as to protrude toward the terminal portion 2 in the X-axis direction within a plane (XY plane) including both the X-axis direction and the Y-axis direction. is doing.
  • the contact portion 34 is curved with a predetermined radius of curvature.
  • the connecting portion 30 projects from the end portion of the terminal portion 2 opposite to the insertion port 11 in the Y-axis direction to the opposite side of the insertion port 11. That is, the terminal portion 2 and the pressing portion 3 are provided so that the terminal portion 2 and the pressing portion 3 are provided so as to protrude in the positive direction of the Y axis from the end portion on the opposite side to the insertion port 11 in the Y axis direction (the upper end portion in FIG. 1B). Are connected to each other.
  • the connecting part 30 has a curved part 301.
  • the bending portion 301 is curved so as to be convex on the opposite side to the insertion port 11 in the Y-axis direction within a plane (XY plane) including both the X-axis direction and the Y-axis direction.
  • the bending portion 301 is curved in an arc shape.
  • the inner diameter of the bending portion 301 substantially matches the distance between the first pressing piece 31 of the pressing portion 3 and the terminal portion 2.
  • the distance L10 from the end of the connecting portion 30 opposite to the insertion port 11 to the insertion port 11 is equal to the distance between the facing portion 5 and the side wall portion 6.
  • the distance from the end opposite to the insertion port 11 to the insertion port 11 is not more than a distance L11.
  • the end of the cylindrical body 120 on the side of the insertion port 11 in the Y-axis direction is used as a reference plane, and the distance from the reference surface to the end of the connecting portion 30 opposite to the insertion port 11 is a distance L10,
  • the distance to the edge on the opposite side to the insertion port 11 in the opposing part 5 and the side wall part 6 is set to L11.
  • the protruding amount of the connecting portion 30 is defined so that the connecting portion 30 protrudes from the terminal portion 2 in the positive direction of the Y axis but does not protrude from the region surrounded by the facing portion 5 and the side wall portion 6. Yes.
  • the deformation amount (deflection amount) of the connecting portion 30 is kept small.
  • the connecting part 30 is accommodated inside the cylindrical body 120.
  • the pressing portion 3 and the connecting portion 30 configured as described above are formed integrally with the cylindrical body 120 and constitute the terminal block 12 together with the cylindrical body 120.
  • the slit 23 formed in the terminal portion 2 of the cylindrical body 120 extends to the tip of the third pressing piece 33 through the connecting portion 30.
  • the two connecting portions 30 are separated by the slit 23 in the Z-axis direction.
  • the two pressing portions 3 are separated by the slit 23 in the Z-axis direction.
  • the spring block 13 has an extending portion 7 in addition to the locking portion 4.
  • the spring block 13 is made of, for example, stainless steel (SUS).
  • the spring block 13 is composed of a metal plate that is thinner (thin) than the terminal block 12.
  • the terminal device 1 is a two-pole type terminal device, and a plurality (two in this case) of the locking portions 4 are provided.
  • the terminal device 1 employs a configuration that is plane-symmetric in the Z-axis direction in which the two locking portions 4 are arranged. Therefore, hereinafter, unless otherwise specified, one of the two lock portions 4 will be described, and the description of the other lock portion 4 will be omitted as appropriate.
  • the lock part 4 and the extension part 7 are integrally formed.
  • the two locking portions 4 and the extending portion 7 are made of a single metal plate.
  • the lock part 4 and the extension part 7 which comprise the spring block 13 are formed by stamping and bending to one metal plate.
  • the lock part 4 is disposed in a storage space 50 formed inside the cylindrical body 120.
  • the locking part 4 is arranged at a position facing the second part 22 on the one surface 20 of the terminal part 2 in the X-axis direction (opposing direction).
  • the second portion 22 here is a portion that is different from the first portion 21 in the Y-axis direction on the one surface 20 of the terminal portion 2, and is a portion that faces the locking portion 4.
  • the second portion 22 is located between the first portion 21 and the insertion port 11. That is, the first part 21 and the second part 22 are arranged in the Y-axis direction in the order of the second part 22 and the first part 21 from the insertion port 11 side.
  • the locking part 4 is configured to contact the electric wire 100 inserted along the Y-axis direction from the insertion port 11 and to restrict the movement of the electric wire 100 toward the insertion port 11.
  • the lock portion 4 is between the second portion 22 and the electric wire 100. It is comprised so that 100 may be inserted
  • the lock part 4 is a rectangular plate shape, and is inclined with respect to the one surface 20 of the terminal part 2 so as to approach the terminal part 2 as the distance from the insertion port 11 increases in the Y-axis direction.
  • rock part 4 contacts the electric wire 100 in the front-end edge 41 nearest to the one surface 20 of the terminal part 2, and controls the movement to the insertion port 11 side of the electric wire 100.
  • the locking portion 4 comes into contact with the electric wire 100 at the tip edge 41. Therefore, when a force in the direction of moving the electric wire 100 toward the insertion port 11 is applied to the electric wire 100 (the negative direction of the Y-axis), the chain is set so that the leading edge 41 of the locking portion 4 bites into the electric wire 100. When the lock part 4 is hooked on the electric wire 100, the electric wire 100 is prevented from coming off.
  • the extension portion 7 is opposite to the insertion port 11 from the end portion (the lower end portion in FIG. 3A) on the insertion port 11 side in the Y-axis direction of the locking portion 4. Protruding. That is, a portion of the spring block 13 that extends in the positive direction of the Y axis from the end of the lock portion 4 opposite to the tip edge 41 constitutes the extension portion 7.
  • the spring portion 42 which is a connecting portion between the locking portion 4 and the extending portion 7, exerts an elastic force on the locking portion 4.
  • the spring block 13 has a spring portion 42 that is curved so as to protrude toward the insertion port 11 in the Y-axis direction within a plane (XY plane) that includes both the X-axis direction and the Y-axis direction. is doing.
  • the spring part 42 is curved with a predetermined radius of curvature.
  • the extending part 7 has a first extending piece 71 and a second extending piece 72.
  • the first extending piece 71 and the second extending piece 72 are connected in the order of the first extending piece 71 and the second extending piece 72 from the side of the lock portion 4.
  • the first extending piece 71 has a rectangular plate shape and is substantially parallel to the one surface 20 of the terminal portion 2. Of the first extending piece 71, the end on the insertion port 11 side in the Y-axis direction is connected to the locking part 4. Of the first extending piece 71, the end opposite to the locking part 4 in the Y-axis direction is connected to the second extending piece 72.
  • the second extending piece 72 has a rectangular plate shape and protrudes from the first extending piece 71 in the positive direction of the X axis. The second extending piece 72 and the first extending piece 71 are substantially orthogonal to each other.
  • the second extending piece 72 and the first extending piece 71 constitute a structure having a substantially L-shaped cross section perpendicular to the Z-axis direction.
  • the spring block 13 is positioned with respect to the terminal block 12 in the X-axis direction by bringing the first extending piece 71 into contact with the inner side surface 51 of the facing portion 5. Further, the second extension piece 72 contacts the case 8 in a state where the spring block 13 is housed in the case 8 described later together with the terminal block 12. As a result, the spring block 13 is positioned with respect to the terminal block 12 in the Y-axis direction.
  • the spring block 13 contacts the terminal block 12 or the case 8 with the corner portion 73 formed by the connecting portion of the first extending piece 71 and the second extending piece 72, so that the spring block 13 is in contact with the terminal block 12. Positioning is done.
  • the corner 73 is curved with a predetermined radius of curvature.
  • the dimension in the Y-axis direction of the spring block 13 is defined to be equal to or less than the dimension in the Y-axis direction of the facing portion 5 in the terminal block 12.
  • the dimension in the Y-axis direction of the spring block 13 is the same as the dimension in the Y-axis direction of the facing portion 5 in the terminal block 12.
  • the dimension of the spring block 13 in the X-axis direction is defined to be slightly smaller than the distance between the terminal portion 2 and the facing portion 5 in the terminal block 12.
  • the dimension of the spring block 13 in the Z-axis direction is defined to be slightly smaller than the distance between the two side wall portions 6 in the terminal block 12.
  • a through hole 711 that penetrates the first extending piece 71 in the thickness direction is formed at the center of the first extending piece 71.
  • the through hole 711 has a circular opening shape.
  • the first extension piece 71 is formed with a slit 712 that penetrates the first extension piece 71 in the thickness direction and extends from the through hole 711 toward the lock portion 4.
  • the slit 712 extends through the spring portion 42 to the distal end edge 41 of the lock portion 4.
  • the two lock portions 4 are separated in the Z-axis direction by the slit 712.
  • the width of the slit 712 in the Z-axis direction is not constant, and the width of the slit 712 from the through hole 711 to at least the spring portion 42 is set wider than the width of the slit 712 at the distal end edge 41 of the lock portion 4. .
  • the dimension of the spring part 42 in the Z-axis direction is set to be smaller than the dimension of the distal end edge 41 of the locking part 4 in the Z-axis direction.
  • FIG. 4A is a cross-sectional view taken along line Z2-Z2 of FIG. 1A. Moreover, in FIG. 4A, the electric wire 100 is shown by the imaginary line (two-dot chain line).
  • the first distance L1 that is the distance between the pressing part 3 and the first part 21 is set larger than the second distance L2 that is the distance between the locking part 4 and the second part 22.
  • the first distance L ⁇ b> 1 is the shortest distance between the contact portion 34 that is closest to the one surface 20 of the terminal portion 2 in the pressing portion 3 and the one surface 20 of the terminal portion 2.
  • the second distance L ⁇ b> 2 is the shortest distance between the tip edge 41 that is closest to the one surface 20 of the terminal portion 2 in the lock portion 4 and the one surface 20 of the terminal portion 2.
  • the end portion on the insertion port 11 side in the Y-axis direction that is, the third pressing piece 33 is separated from the terminal portion 2 as it approaches the insertion port 11 in the Y-axis direction. It is inclined with respect to the one surface 20. That is, since the third pressing piece 33 is inclined so as to be away from the terminal portion 2 as it is away from the contact portion 34, the terminal portion is provided at the end of the third pressing piece 33 opposite to the contact portion 34. The distance from 2 is larger than that of the contact portion 34.
  • the shortest distance between the edge of the third pressing piece 33 opposite to the contact portion 34 and the one surface 20 of the terminal portion 2 is defined as a third distance L3.
  • the first distance L1 is larger than the second distance L2
  • the third distance L3 is larger than the first distance L1 (L2 ⁇ L1 ⁇ L3).
  • the wire diameter ⁇ X of the electric wire 100 inserted from the insertion port 11 is preferably larger than the first distance L1 and smaller than the third distance L3.
  • the wire diameter ⁇ X of the electric wire 100 here is the wire diameter ⁇ X of the electric wire 100 defined as an electric wire that can be connected to the terminal device 1.
  • the diameter of the core wire inserted from the insertion port 11 is the wire diameter ⁇ X.
  • the first distance L1 is larger than the second distance L2
  • the wire diameter ⁇ X is larger than the first distance L1
  • the line The third distance L3 becomes larger than the diameter ⁇ X (L2 ⁇ L1 ⁇ X ⁇ L3).
  • the wire diameter ⁇ X here means the outer diameter of the electric wire 100 inserted from the insertion port 11 (in the case of an insulated wire, the diameter of the core wire), and conforms to the IEC (International Electrotechnical Commission) standard, for example. And appropriately determined.
  • FIGS. 4A and 4B are sectional views taken along line Z2-Z2 of FIG. 1A. Moreover, in FIG. 4A and 4B, the electric wire 100 is shown with the imaginary line (two-dot chain line).
  • FIG. 4A shows the terminal device 1 in a state where the electric wire 100 is not connected
  • FIG. 4B shows the terminal device 1 in a state where the electric wire 100 is connected.
  • the worker inserts the electric wire 100 to be connected into the terminal device 1 from the insertion port 11 in the positive direction of the Y axis.
  • the tip of the electric wire 100 is first introduced between the locking portion 4 and the terminal portion 2 (second portion 22).
  • the spring part 42 is elastically deformed so that the radius of curvature of the spring part 42 becomes small. Therefore, a force in a direction of pressing the electric wire 100 against the terminal portion 2 acts on the electric wire 100 from the lock portion 4.
  • the tip of the electric wire 100 is introduced between the pressing portion 3 and the terminal portion 2 (first portion 21).
  • the distance between the first distance L1, the third distance L3, and the wire diameter ⁇ X of the electric wire 100 is “L1 ⁇ X ⁇ L3”.
  • the tip of the electric wire 100 is guided by the third pressing piece 33 and is drawn between the contact portion 34 and the terminal portion 2.
  • the contact portion 34 is pushed by the tip of the electric wire 100 and the contact portion 34 of the pressing portion 3 is displaced in a direction away from the one surface 20 of the terminal portion 2.
  • the connecting portion 30 is elastically deformed so that the radius of curvature of the bending portion 301 is increased. Therefore, a force in a direction of pressing the electric wire 100 against the terminal portion 2 acts on the electric wire 100 from the pressing portion 3.
  • the locking part 4 and the pressing part 3 are prevented so that the locking part 4 does not contact the pressing part 3.
  • the dimensions of the locking part 4 and the pressing part 3 are defined. That is, the positional relationship between the locking unit 4 and the pressing unit 3 in the Y-axis direction, and the locking unit 4 and the pressing unit 3 so that the pressing unit 3 is not positioned on the locus of the leading edge 41 of the locking unit 4. The dimensions are specified. Thereby, when the electric wire 100 is inserted, the locking part 4 and the pressing part 3 are not displaced simultaneously, but the locking part 4 is displaced first, and then the pressing part 3 is displaced. .
  • the magnitude of the force required for inserting the electric wire 100 can be kept small.
  • the distance between the first portion 21 and the second portion 22 in the Y-axis direction is as small as possible while preventing the locking portion 4 from contacting the pressing portion 3. If the distance between the 1st site
  • the terminal device 1 further includes a case 8 and a release member 9 in addition to the terminal block 12 and the spring block 13 described above.
  • 6A and 6B are perspective sectional views taken along the line Z1-Z1 of FIG. 7A, respectively.
  • 7B is a cross-sectional view taken along the line Z2-Z2 of FIG. 7A.
  • FIG. 7B although the space
  • Case 8 is made of an electrically insulating material, for example, a synthetic resin.
  • the case 8 is formed in a box shape having a space for accommodating the terminal block 12 and the spring block 13.
  • the case 8 further includes a cover coupled to the body so as to close the opening surface of the terminal chamber 80. That is, in a state where the terminal block 12 and the spring block 13 are accommodated in the terminal chamber 80, the opening surface of the terminal chamber 80 is closed by the cover. Therefore, the spring block 13 is positioned in the Y-axis direction with respect to the terminal block 12 by bringing the second extending piece 72 into contact with the cover.
  • An insertion hole 81 that penetrates the bottom plate of the case 8 in the Y-axis direction is formed at a position corresponding to the insertion port 11 in the case 8.
  • Two insertion holes 81 have a circular opening shape and are formed so as to correspond to the two electric wires 100.
  • the inner diameter of the insertion hole 81 is not constant, and the inner diameter of the insertion hole 81 gradually decreases from the outer side to the inner side of the case 8 of the insertion hole 81 in a part in the Y-axis direction so as to attract the electric wire 100. . 5 to 7B, the insertion port 11 is not shown, but in the terminal device 1 including such a case 8, the insertion hole 81 of the case 8 corresponds to the insertion port 11.
  • an operation window 82 penetrating the side wall of the case 8 in the X direction is formed at a position corresponding to the slit 23 in the case 8.
  • the operation window 82 is a hole through which a guide projection 93 of the release member 9 described later is passed.
  • a pair of bearing portions 83 for holding the release member 9 is formed on a pair of inner surfaces facing the Z-axis direction among the inner surfaces of the operation window 82.
  • a shaft portion 91 of the release member 9 described later is inserted into the pair of bearing portions 83.
  • the release member 9 is a member for releasing the restriction of the movement of the electric wire 100 by the locking part 4, that is, the prevention of the electric wire 100 from coming off by the locking part 4.
  • the release member 9 is made of an electrically insulating material such as a synthetic resin.
  • the release member 9 is configured to be movable relative to the terminal portion 2 between a normal position and a release position.
  • the normal position refers to the position of the release member 9 when the release member 9 is in a state in which the locking of the electric wire 100 by the locking part 4 is not released.
  • the release position refers to the position of the release member 9 when the release member 9 is in a state in which the locking of the electric wire 100 by the locking part 4 is released.
  • release member 9 moves from the normal position to the release position, a force in a direction away from the second portion 22 is applied to the lock portion 4, and the movement of the electric wire 100 by the lock portion 4 is regulated (disengaged).
  • Release (stop). 6A to 7B show a state in which the release member 9 is in the normal position.
  • the release member 9 has a shaft portion 91, an operation portion 92, and a guide protrusion 93.
  • the shaft portion 91 is formed in a cylindrical shape along the Z-axis direction.
  • the release member 9 is held by the case 8 in a state of being rotatable about the shaft portion 91 with respect to the case 8 by inserting both ends of the shaft portion 91 in the Z-axis direction into the pair of bearing portions 83.
  • the As a result, the release member 9 can be rotated (moved) between the normal position and the release position with the shaft portion 91 as the center.
  • the bearing portion 83 is opened in the negative direction of the X axis.
  • the movement of the shaft portion 91 in the negative direction of the X axis is restricted by the connecting portion 30 of the terminal block 12, and the shaft portion 91 is dropped from the bearing portion 83. Is prevented.
  • the surface of the release member 9 that faces the bottom surface of the terminal chamber 80 is preferably formed in a substantially arc shape with the shaft portion 91 as the center.
  • the operation unit 92 is a part that is operated when the release member 9 is moved from the normal position to the release position.
  • the release member 9 is held by the case 8 so that at least a part of the operation portion 92 is exposed from the case 8.
  • the operation unit 92 is set such that the dimension in the Z-axis direction is larger than the width of the operation window 82 of the case 8. Therefore, the operation portion 92 also functions as a stopper that restricts the movable range of the release member 9 by contacting the peripheral portion of the operation window 82 in the case 8 when the release member 9 is operated.
  • the guide protrusion 93 constitutes at least a part of a guide portion for restricting the moving direction of the electric wire 100 in the Y-axis direction.
  • the guide portion is a member that protrudes from one surface 20 of the terminal portion 2 and is located on both sides in the Z-axis direction with respect to the electric wire 100.
  • the guide portion will be described in detail in the column “(2.7) Guide portion”.
  • the release member 9 is held in the case 8 so that at least a part of the guide protrusion 93 is inserted into the accommodation space 50 through the operation window 82 of the case 8 and the slit 23 of the terminal portion 2.
  • the guide projection 93 has a first projecting piece 931 and a second projecting piece 932 located on both sides of the locking part 4 in the Y-axis direction.
  • the first protrusion 931 is located on the insertion port 11 (insertion hole 81) side with respect to the lock portion 4 in the Y-axis direction.
  • the second projecting piece 932 is positioned on the opposite side of the insertion port 11 (insertion hole 81) with respect to the lock portion 4 in the Y-axis direction. That is, the first projecting piece 931 and the second projecting piece 932 are in a positional relationship such that the locking part 4 is sandwiched in the accommodation space 50.
  • the first protruding piece 931 has a trapezoidal plate shape
  • the second protruding piece 932 has a rectangular plate shape.
  • the first projecting piece 931 includes an action part 94 and an avoidance part 95.
  • the corner between the upper base of the trapezoid (the shorter side of the two parallel sides) and the trapezoidal leg (one of the two non-parallel sides) corresponds to the action portion 94, and the upper base of the trapezoid corresponds to the avoidance portion 95.
  • the action portion 94 is a portion that applies a force in a direction away from the second portion 22 to the lock portion 4 when the release member 9 moves from the normal position to the release position. That is, when the release member 9 moves from the normal position to the release position, the action portion 94 is in contact with the lock portion 4 and is away from the one surface 20 of the terminal portion 2 with respect to the lock portion 4. Apply force.
  • the action portion 94 faces a portion of the lock portion 4 near the tip edge 41. Thereby, when the release member 9 moves from the normal position to the release position, it contacts the vicinity of the front end edge 41 of the lock part 4 at the action part 94. Therefore, the release member 9 can cause a relatively large moment to act on the lock portion 4 with the spring portion 42 as a fulcrum, and as a result, the lock portion 4 can be displaced with a relatively small force. .
  • the avoiding portion 95 provides a clearance SP1 (see FIG. 7B) for avoiding contact with the lock portion 4 other than the action portion 94 when the release member 9 moves from the normal position to the release position. Form between. Therefore, the locking part 4 can be displaced with a small force compared to the case where there is no avoiding part 95 and the first protruding piece 931 has a shape (triangular plate shape) that fills the gap SP1. That is, since the clearance SP1 is formed between the first projecting piece 931 and the locking part 4 by the avoiding part 95, the release member 9 is not the action part 94 when moving from the normal position to the release position. Contact with the locked portion 4 can be avoided.
  • the operator when the connection between the terminal device 1 and the electric wire 100 is released, the operator operates the release member 9 to release the retaining of the electric wire 100 by the locking portion 4 and from the insertion port 11.
  • the electric wire 100 can be removed. That is, when the operator pushes the operation unit 92 in the direction indicated by the arrow A1 in FIG. 7B from the state where the release member 9 is in the normal position, the release member 9 moves to the release position about the shaft portion 91. At this time, the action portion 94 moves in the direction indicated by the arrow A2 in FIG. 7B and applies a force in a direction away from the second portion 22 to the distal end edge 41 of the lock portion 4. When the distal end edge 41 moves away from the second portion 22, the locking portion 4 is separated from the electric wire 100, and the restriction (prevention of movement) of the electric wire 100 by the locking portion 4 is released.
  • the guide protrusion 93 of the release member 9 is disposed at a position straddling the two lock portions 4 in the Z-axis direction.
  • the terminal device 1 as described above can be assembled by the following procedure.
  • the terminal block 12, the spring block 13, and the release member 9 are attached to the case 8 in the order of the spring block 13, the terminal block 12, and the release member 9.
  • the spring block 13 is accommodated in the terminal chamber 80 of the case 8.
  • the terminal block 12 is accommodated in the terminal chamber 80 of the case 8.
  • the spring block 13 previously accommodated in the terminal chamber 80 is introduced into the accommodating space 50 from the opening 121 formed on the end face on the insertion port 11 side in the Y-axis direction of the terminal block 12. become. That is, the terminal block 12 and the spring block 13 are combined so that the spring block 13 is introduced into the accommodation space 50 inside the cylindrical body 120 through the opening 121 of the terminal block 12.
  • the release member 9 is attached to the case 8 so that both end portions of the shaft portion 91 are inserted into the bearing portion 83 of the case 8.
  • the assembly of the terminal device 1 can be automated.
  • the terminal device is simply dropped from the opening surface side (the positive side of the Y axis) of the terminal chamber 80 with respect to the case 8 in this order, by dropping the spring block 13, the terminal block 12, and the release member 9 in order. 1 assembly is possible. Therefore, the assembly of the terminal device 1 can be easily realized by an automatic assembly machine.
  • FIGS. 8A and 8B are cross-sectional views taken along the line Z2-Z2 of FIG. 7A, and the release member 9 is indicated by an imaginary line (two-dot chain line).
  • 8A and 8B, positions P1 to P3, which will be described later, are indicated by alternate long and short dash lines, but the positions P1 to P3 are merely shown for explanation, and do not involve an entity.
  • the guide portion protrudes from one surface 20 of the terminal portion 2 and is positioned on both sides in the Z-axis direction with respect to the electric wire 100, thereby restricting the moving direction of the electric wire 100 in the Y-axis direction.
  • the guide portion is constituted by the side wall portion 6 and the guide protrusion 93.
  • the side wall portion 6 and the guide protrusion 93 each have a function as a guide portion. That is, the electric wire 100 inserted from the insertion port 11 (insertion hole 81) is restricted from moving in the Z-axis direction by contacting the side wall portions 6 and the guide protrusions 93 located on both sides in the Z-axis direction.
  • the movement of the electric wire 100 in the X-axis direction is restricted by the electric wire 100 being sandwiched between the locking portion 4 and the pressing portion 3 and the terminal portion 2.
  • the guide portion is configured to correspond to the two electric wires 100.
  • the two side wall portions 6 are located on both sides in the Z-axis direction of the accommodation space 50, and the guide protrusion 93 is located at an intermediate position between the two side wall portions 6. Therefore, the accommodation space 50 is divided into two regions by the guide protrusion 93 in the Z-axis direction (see FIG. 7A), and these two regions correspond to the two electric wires 100, respectively. And about one electric wire 100, one side wall part 6 and the guide protrusion 93 function as a guide part, and about the other electric wire 100, the other side wall part 6 and the guide protrusion 93 function as a guide part.
  • the guide wire restricts the moving direction of the electric wire 100 so that the plurality of conductor wires constituting the core wire are dispersed. Hard to become. That is, when the electric wire 100 is inserted from the insertion port 11 (insertion hole 81), the tip of the electric wire 100 is first introduced between the locking portion 4 and the terminal portion 2, and then the pressing portion 3 and the terminal. It is introduced between the two parts. At this time, as shown in FIG. 8A and FIG.
  • the electric wire 100 first contacts the locking part 4 at the position P1, and then at the position P2, the leading edge 41 and the terminal part 2 of the locking part 4 After that, it is sandwiched between the pressing portion 3 and the terminal portion 2 at the position P3. Therefore, in each of the positions P1 to P3, a reaction force acts on the tip of the electric wire 100 from the locking portion 4 or the pressing portion 3, and the plurality of conductive wires constituting the core wire are likely to be separated.
  • the guide protrusion 93 has the 1st protrusion piece 931 and the 2nd protrusion piece 932 which are located in the both sides of the locking part 4 in a Y-axis direction, about the position P1, the 1st protrusion piece 931 is sufficient.
  • the positions P2 and P3 can be covered with the second projecting piece 932. That is, in the position P1, since the 1st protrusion piece 931 and the side wall part 6 are located in the both sides of the Z-axis direction of the electric wire 100, it is suppressed that the several conducting wire which comprises a core wire is separated.
  • the second projecting piece 932 and the side wall portion 6 are located on both sides of the electric wire 100 in the Z-axis direction, it is possible to suppress a plurality of conductors constituting the core wire from being separated.
  • the terminal device 1 having the above-described configuration is used in a wiring device 10 as shown in FIG. 9, for example.
  • a wiring device 10 illustrated in FIG. 9 is a switch used by being attached to a wall of a building or the like.
  • the wiring device 10 includes a rectangular parallelepiped device body 101 and a terminal device 1 housed in the device body 101.
  • a handle 102 is provided on the front surface of the instrument main body 101.
  • the wiring device 10 is configured such that the contact in the device main body 101 is switched on / off each time the handle 102 is pressed.
  • the wiring device 10 includes four terminal devices 1 configured as described above.
  • the four terminal devices 1 are housed in the instrument body 101 so that the insertion holes 81 are exposed on the rear surface of the instrument body 101, respectively.
  • the electric wire 100 can be connected by inserting the electric wire 100 from the rear surface side of the device main body 101.
  • the four terminal devices 1 are arranged at both ends in the X-axis direction of the instrument body 101 as a set of two terminal devices 1 so as to be aligned in the Z-axis direction. Therefore, a total of eight insertion holes 81 are formed on the rear surface of the instrument body 101 so that four are arranged in the Z-axis direction and two in the X-axis direction.
  • the dimensions of the instrument body 101 are often determined by the standards of each country, such as “one module dimension”.
  • the dimensions of the instrument body 101 are often determined by the standards of each country, such as “one module dimension”.
  • the terminal device 1 according to the present embodiment is particularly suitable for such a wiring device 10 because it is configured to easily reduce the dimension in the Z-axis direction.
  • the case 8 (see FIG. 5) of the terminal device 1 may be a separate body from the instrument body 101 or a part of the instrument body 101. Further, the release member 9 (see FIG. 7) is held by the device body or case 8 of the instrument main body 101 so that at least a part of the operation unit 92 (see FIG. 7) is exposed from the instrument body of the instrument main body 101. .
  • the terminal device 1 includes the terminal portion 2, the pressing portion 3, the locking portion 4, the facing portion 5, and the side wall portion 6.
  • the pressing portion 3 is disposed so as to face the one surface 20 of the terminal portion 2, and sandwiches the electric wire 100 inserted along the insertion direction (Y-axis direction) from the insertion port 11 between the terminal portion 2.
  • the locking part 4 is disposed so as to face the one surface 20 of the terminal part 2 and contacts the electric wire 100 to restrict the movement of the electric wire 100 toward the insertion port 11.
  • the facing portion 5 is disposed so as to face the one surface 20 of the terminal portion 2, and forms an accommodating space 50 in which the pressing portion 3 and the locking portion 4 are accommodated between the facing portion 5.
  • the side wall portion 6 connects the terminal portion 2 and the facing portion 5.
  • the side wall portion 6 connects at least one end portions of the terminal portion 2 and the facing portion 5 in the width direction (Z-axis direction).
  • the width direction is a direction parallel to the one surface 20 of the terminal portion 2 and orthogonal to the insertion direction.
  • the electric wire 100 is hold
  • the electric wire 100 becomes difficult to tilt. Therefore, the electric wire 100 can come into surface contact with the terminal portion 2 regardless of the hardness of the electric wire 100, and the contact state between the electric wire 100 and the terminal portion 2 is stabilized. Therefore, in the terminal device 1, there exists an advantage that the contact state of the electric wire 100 with respect to the terminal part 2 does not become unstable easily. If the contact state between the electric wire 100 and the terminal portion 2 is stabilized, the contact resistance between the electric wire 100 and the terminal portion 2 is also stabilized, and the temperature rise of the terminal portion 2 due to the increase in the contact resistance is suppressed.
  • the side wall portion 6 can constitute at least a part of a guide portion for restricting the moving direction of the electric wire 100 in the insertion direction (Y-axis direction). Restriction of the moving direction of the electric wire 100 can be realized, for example, by forming a guide groove extending in the insertion direction on the one surface 20 of the terminal portion 2, but by using the side wall portion 6 as a guide portion, the width direction ( The terminal device 1 can be downsized in the Z-axis direction). That is, when a guide groove is formed in the terminal portion 2, it is structurally difficult to form the guide groove at the same position as the connecting portion 30 in the width direction, so the connecting portion 30 and the guide groove are displaced in the width direction.
  • the dimension of the terminal device 1 in the width direction is increased by the amount of the guide groove.
  • the side wall portion 6 also serves as at least a part of the guide portion, the dimension in the width direction of the terminal device 1 can be kept small.
  • the terminal device 1 which concerns on a 2nd aspect is further provided with the connection part 30 which connects the terminal part 2 and the pressing part 3 in a 1st aspect, and the connection part 30 is an insertion direction among the terminal parts 2.
  • FIG. It is preferable that the end on the opposite side to the insertion port 11 in the (Y-axis direction) and the pressing portion 3 are connected.
  • the pressing portion 3 that presses the electric wire 100 against the terminal portion 2 by sandwiching the electric wire 100 with the terminal portion 2 is connected to the terminal portion 2 by the connecting portion 30.
  • the pressing part 3 can be handled as one part with the terminal part 2.
  • the pressing force of the electric wire 100 against the terminal portion 2 is less likely to vary.
  • the electric wire 100 against the terminal portion 2 The contact state is more stable.
  • interference between the electric wire 100 inserted from the insertion port 11 and the connecting portion 30 hardly occurs, and the degree of freedom in designing the connecting portion 30 is increased.
  • this configuration is not essential for the terminal device 1, and for example, the connecting portion 30 may be omitted.
  • the connecting part 30 may connect the end part on the insertion port 11 side in the insertion direction and the pressing part 3 in the terminal part 2.
  • the connection part 30 may connect the one end part in the Z-axis direction and the pressing part 3 among the terminal parts 2.
  • the distance L10 is preferably equal to or less than the distance L11 in the insertion direction (Y-axis direction).
  • the distance L ⁇ b> 10 is a distance from the end of the connecting portion 30 on the side opposite to the insertion port 11 to the insertion port 11.
  • the distance L ⁇ b> 11 is a distance from the opposite end of the facing portion 5 and the side wall portion 6 to the insertion port 11 to the insertion port 11. According to this configuration, the connecting portion 30 protrudes from the terminal portion 2 to the side opposite to the insertion port 11, but does not protrude from the region surrounded by the facing portion 5 and the side wall portion 6.
  • the distance from the fulcrum when the pressing portion 3 is displaced to the pressing portion 3 is increased by the amount of protrusion of the connecting portion 30, the amount of deformation (the amount of bending) of the connecting portion 30 is suppressed to a small level.
  • a solid structure in which the portion 30 is surrounded by the facing portion 5 and the side wall portion 6 can be obtained. That is, since the connection part 30 does not protrude from the opposing part 5 and the side wall part 6, it is suppressed before the assembly that the connection part 30 deform
  • this configuration is not an essential configuration for the terminal device 1, and for example, the distance L10 may be larger than the distance L11.
  • the terminal device 1 according to the fourth aspect protrudes from the one surface 20 of the terminal portion 2 and is opposite to the electric wire 100 in the width direction (Z-axis direction). It is preferable to further include a guide portion (the side wall portion 6 and the guide protrusion 93) located in the position. According to this configuration, since the movement of the electric wire 100 in a plane along the one surface 20 other than the insertion direction (Y-axis direction) is restricted by the guide portion, the operation of inserting the electric wire 100 is performed. Improves.
  • the electric wire 100 is a stranded wire having a core made of a plurality of conductors
  • the plurality of conductors constituting the core are less likely to be separated by passing the wire 100 between the guide portions.
  • this configuration is not essential for the terminal device 1 and the guide portion may be omitted.
  • the terminal device 1 according to the fifth aspect further includes a release member 9 that is relatively movable with respect to the terminal portion 2 between the normal position and the release position in any one of the first to third aspects. It is preferable to provide. When the release member 9 moves from the normal position to the release position, the release member 9 applies a force in a direction away from the one surface 20 of the terminal portion 2 to the lock portion 4 to restrict the movement of the electric wire 100 by the lock portion 4. It is preferable to cancel. According to this configuration, the operation of the release member 9 allows the wire 100 to be easily removed in a state where the restriction of the movement of the wire 100 by the lock portion 4 is released. However, this configuration is not an essential configuration for the terminal device 1. For example, the release member 9 may be omitted.
  • the terminal device 1 according to the sixth aspect projects from the one surface 20 of the terminal part 2 in the fifth aspect, and is a guide part located on both sides in the width direction (Z-axis direction) with respect to the electric wire 100. It is preferable to further include (side wall part 6 and guide protrusion 93). According to this configuration, since the movement of the electric wire 100 in a plane along the one surface 20 other than the insertion direction (Y-axis direction) is restricted by the guide portion, the operation of inserting the electric wire 100 is performed. Improves. In particular, when the electric wire 100 is a stranded wire having a core made of a plurality of conductors, the plurality of conductors constituting the core are less likely to be separated by passing the wire 100 between the guide portions. However, this configuration is not essential for the terminal device 1 and the guide portion may be omitted.
  • the release member 9 has a guide protrusion 93 that constitutes at least a part of the guide portion. According to this configuration, since the release member 9 is also used as at least a part of the guide part that regulates the moving direction of the electric wire 100, the structure is simplified compared to the case where the guide part is provided separately from the release member 9. And size reduction can be achieved. However, this configuration is not essential for the terminal device 1, and the guide protrusion 93 may be omitted.
  • the guide protrusion 93 includes a first protruding piece 931 and a second protruding piece 932.
  • the first projecting piece 931 is positioned on the insertion port 11 side with respect to the lock portion 4 in the insertion direction (Y-axis direction).
  • the second projecting piece 932 is located on the side opposite to the insertion port 11 with respect to the lock portion 4 in the insertion direction.
  • the guide protrusion 93 has a position P1 (see FIG. 8A) on the side of the insertion port 11 with respect to the locking part 4, and a position P2, on the opposite side of the insertion part 11 with respect to the locking part 4.
  • the movement direction of the electric wire 100 can be regulated both in P3 (see FIG. 8A).
  • this configuration is not an essential configuration for the terminal device 1.
  • one of the first projecting piece 931 and the second projecting piece 932 may be omitted.
  • the first protruding piece 931 includes the action portion 94.
  • the action portion 94 contacts the lock portion 4 and applies a force in a direction away from the one surface 20 of the terminal portion 2 to the lock portion 4.
  • a part of the guide protrusion 93 that regulates the moving direction of the electric wire 100 is also used as the action part 94, so that the structure is simplified compared to the case where the action part 94 is provided separately from the guide protrusion 93. And downsizing can be achieved.
  • this configuration is not essential for the terminal device 1, and the action portion 94 may be provided separately from the guide protrusion 93.
  • the first projecting piece 931 includes an avoiding portion 95.
  • the avoiding portion 95 has a gap SP1 (see FIG. 7B) for avoiding contact with the locking portion 4 other than the action portion 94 when the releasing member 9 moves from the normal position to the releasing position. Form between.
  • the action portion 94 can continue to contact the vicinity of the distal end edge 41 of the lock portion 4, and A relatively large moment can be applied with the spring portion 42 as a fulcrum. Therefore, the release member 9 can displace the lock portion 4 with a relatively small force.
  • this configuration is not an essential configuration for the terminal device 1, and the avoidance unit 95 may be omitted.
  • the terminal device 1 according to the eleventh aspect is provided with a plurality of pressing portions 3 (two in the first embodiment), and each of the plurality of pressing portions 3 includes It is preferable to sandwich the electric wire 100 between the terminal portion 2 and the terminal portion 2 individually.
  • the pressing unit 3 individually applies a pressing force to the plurality of electric wires 100 respectively inserted from the plurality of insertion ports 11, the followability of the pressing unit 3 with respect to the electric wire 100 is improved.
  • the contact state between the electric wire 100 and the terminal portion 2 is stabilized.
  • this configuration is not an essential configuration for the terminal device 1, for example, a configuration in which a single pressing unit 3 sandwiches a plurality of electric wires 100 inserted from a plurality of insertion ports 11 between the terminal unit 2. May be.
  • the wiring device 10 includes the terminal device 1 according to any one of the first to eleventh aspects and a device body 101 in which the terminal device 1 is housed. According to this configuration, the wiring device 10 has an advantage that the contact state of the electric wire 100 with respect to the terminal portion 2 is not likely to be unstable.
  • the terminal device 1 is not limited to the wiring device 10, and may be used for an electric device such as a home appliance, or may be used alone.
  • the terminal device 1 according to the first embodiment is merely an example of the present invention, and the present invention is not limited to the first embodiment, and the present invention is not limited to the first embodiment.
  • Various modifications can be made according to the design or the like as long as the technical idea does not depart from the scope. Below, the modification of Embodiment 1 is enumerated.
  • the side wall part 6 has connected the both ends of the Z-axis direction in the terminal part 2 and the opposing part 5, not only this structure but the side wall part 6 is the terminal part 2 and the opposing part. 5 may be connected to each other in the Z-axis direction. That is, the terminal device 1 includes only one side wall portion 6, and one end portion in the Z-axis direction of the terminal portion 2 and one end portion in the Z-axis direction of the facing portion 5 are connected by the side wall portion 6. It may be. In this case, the terminal portion 2, the facing portion 5, and the side wall portion 6 are not cylindrical, but are substantially C-shaped when viewed from one side in the Y-axis direction.
  • the guide part which regulates the moving direction of the electric wire 100 is comprised by the side wall part 6 and the guide protrusion 93,
  • the electric wire 100 in the guide part of another structure is comprised by the side wall part 6 and the guide protrusion 93.
  • the direction of movement may be described.
  • a guide piece that protrudes in the negative direction of the X-axis from both ends of the slit 23 in the Z-axis direction on one surface 20 of the terminal portion 2 may be provided.
  • the guide piece constitutes a guide portion together with the side wall portion 6 instead of the guide protrusion 93.
  • the guide piece may have a curled shape so as to wrap the electric wire 100.
  • a guide groove extending in the Y-axis direction may be provided on one surface 20 of the terminal portion 2.
  • the guide groove constitutes a guide portion.
  • the guide groove is formed, for example, by punching or cutting.
  • the slit 23 formed in a part of the cylindrical body 120 may be formed not in the terminal portion 2 but in the facing portion 5 or the side wall portion 6. In this case, it is preferable that a hole for introducing the guide protrusion 93 into the accommodation space 50 is formed in the terminal portion 2 separately from the slit 23.
  • the one surface 20 of the terminal portion 2 is not limited to a flat surface, and a plurality of irregularities may be formed on the one surface 20 by, for example, knurling.
  • the oxide film on the surface of the electric wire 100 can be removed by a plurality of irregularities every time the electric wire 100 is inserted into and removed from the terminal device 1.
  • the plurality of irregularities also function as a slip stopper for the electric wire 100 in the Y-axis direction.
  • the locking portion 4 is located between the pressing portion 3 and the insertion port 11 in the Y-axis direction.
  • the present invention is not limited to this configuration.
  • the locking portion 4 and The pressing portion 3 may be positioned between the insertion port 11 and the insertion port 11.
  • the pressing unit 3 and the locking unit 4 are separate members. However, the configuration is not limited to this, and the pressing unit 3 and the locking unit 4 may be integrated. Furthermore, the shape of the pressing portion 3 and the shape of the lock portion 4 are not limited to the shapes described in the first embodiment, and can be changed as appropriate.
  • the spring block 13 is positioned with respect to the terminal block 12 by contacting the terminal block 12 or the case 8, but the present invention is not limited to this configuration, and the spring block 13 is not limited to the terminal block 12. It may be positioned in contact with only. Specifically, for example, a restricting piece that protrudes in the positive direction of the X axis from the end of the facing portion 5 opposite to the insertion port 11 in the Y axis direction may be provided. In this case, the spring block 13 is positioned in the Y-axis direction with respect to the terminal block 12 by the second extending piece 72 of the spring block 13 coming into contact with the regulating piece.
  • terminal part 2, the pressing part 3, the opposing part 5, the side wall part 6, and the connection part 30 which comprise the terminal block 12 are not restricted to the structure formed by bending one metal plate, for example, It may be formed by extrusion or the like.
  • the lock part 4 and the extension part 7 which comprise the spring block 13 are not restricted to the structure formed by bending one metal plate, For example, you may form by extrusion molding etc. .
  • the contact portion 34 is curved with a predetermined radius of curvature.
  • the contact portion 34 may be angular.
  • the first corner portion 61 and the second corner portion 62 of the terminal block 12 and the corner portion 73 of the extending portion 7 are also curved with a predetermined radius of curvature.
  • it may be angular.
  • the spring portion 42 is not necessarily indispensable for the terminal device 1 to be curved with a predetermined radius of curvature, and may be angular, for example.
  • the connecting portion 30 may not have the bending portion 301.
  • the terminal block 12 only needs to have conductivity, and the material of the terminal block 12 is not limited to copper, for example, copper alloy such as brass, tin (Sn) bronze, or phosphorus (P) bronze. Also good.
  • the spring block 13 only needs to have elasticity, and the material of the spring block 13 is not limited to stainless steel, and may be, for example, iron (Fe) or a copper alloy.
  • the terminal block 12 (pressing portion 3) and the spring block 13 (locking portion 4) may be made of the same material.
  • the terminal device 1 is not limited to a two-pole type terminal device that can connect up to two electric wires 100, but can be connected to, for example, a three-pole type that can connect three electric wires 100, or four electric wires 100.
  • a terminal device capable of connecting three or more electric wires 100 such as a four-pole type may be used.
  • the pressing part 3, the locking part 4, and the connection part 30 are provided by the same number as the number of poles. That is, in the three-pole terminal device 1, it is preferable that the pressing portion 3, the locking portion 4, and the connecting portion 30 are provided three by three.
  • the pressing portion 3, the connecting portion 30, and the terminal portion 2 may not be integrated, and the pressing portion 3, the connecting portion 30, and the terminal portion 2 may be separate.
  • the pressing part 3, the connecting part 30, and the terminal part 2 that are configured separately may be coupled by, for example, caulking, welding, or pressure bonding.
  • the release member 9 is operated only when the electric wire 100 is removed, but may be operated when the electric wire 100 is inserted. That is, when the operator connects the electric wire 100 to the terminal device 1, the operator operates the release member 9 to displace the tip edge 41 of the lock portion 4 in a direction away from the one surface 20 of the terminal portion 2.
  • the electric wire 100 may be inserted.
  • the release member 9 may be directly operated by an operator, or may be operated using a jig such as a driver.
  • the terminal device 1A according to the present embodiment is a unipolar terminal device that can connect only one electric wire.
  • the same configurations as those of the first embodiment are denoted by common reference numerals, and description thereof is omitted as appropriate.
  • the terminal device 1A corresponds to a configuration in which the terminal device 1 according to the first embodiment (see FIGS. 6A and 6B) is divided into two equal parts in the Z-axis direction. That is, the terminal device 1 ⁇ / b> A has only one insertion port 11, and one electric wire 100 can be connected through one insertion port 11. In this terminal device 1 ⁇ / b> A, one electric wire 100 is electrically connected to one terminal portion 2. In the terminal device 1 ⁇ / b> A, the pressing portion 3, the locking portion 4, the facing portion 5, the side wall portion 6, and the connecting portion 30 are provided one by one.
  • the terminal device 1A of the present embodiment described above has an advantage that the contact state of the electric wire 100 with respect to the terminal portion 2 is not likely to become unstable, as in the first embodiment. Moreover, 1 A of terminal devices may be used for the wiring instrument 10 (refer FIG. 9) similarly to Embodiment 1. FIG.
  • the configuration of the second embodiment can be applied in combination with the configuration of the first embodiment (including modifications) as appropriate.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

L'invention concerne : un dispositif de borne conçu de façon à ce que l'état de contact d'un fil électrique avec une partie borne ne soit pas susceptible de devenir instable ; et un dispositif de câblage muni du dispositif de borne. Le dispositif de borne (1) est pourvu d'une partie borne (2), d'une partie de pression (3), d'une partie de verrouillage (4), d'une partie en regard (5) et de parties parois latérales (6). La partie de pression (3) serre, entre la partie de pression (3) et la partie borne (2), un fil électrique (100) inséré dans la direction d'insertion à partir d'une ouverture d'insertion (11). La partie de verrouillage (4) entre en contact avec le fil électrique (100) pour empêcher le fil électrique (100) de se déplacer vers l'ouverture d'insertion (11). La partie en regard (5) est disposée de manière à être en regard d'une surface (20) de la partie borne (2) et forme, entre la partie en regard (5) et la partie borne (2), un espace de logement (50) dans lequel la partie de pression (3) et la partie de verrouillage (4) sont logées. Les parties parois latérales (6) relient la partie borne (2) et la partie en regard (5). Au moins une extrémité, dans la direction de la largeur parallèle à ladite surface (20) de la partie borne (2) et perpendiculaire à la direction d'insertion, de chacune de la partie borne (2) et de la partie en regard (5) est reliée à celle de l'autre par une partie paroi latérale (6).
PCT/JP2017/017461 2016-05-12 2017-05-09 Dispositif de borne et dispositif de câblage le comprenant Ceased WO2017195750A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-096519 2016-05-12
JP2016096519A JP2017204415A (ja) 2016-05-12 2016-05-12 端子装置及びそれを備えた配線器具

Publications (1)

Publication Number Publication Date
WO2017195750A1 true WO2017195750A1 (fr) 2017-11-16

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WO (1) WO2017195750A1 (fr)

Cited By (1)

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CN116053246A (zh) * 2023-01-06 2023-05-02 株洲中车时代半导体有限公司 半导体功率模块及功率器件

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Publication number Priority date Publication date Assignee Title
JP6638759B2 (ja) * 2018-05-09 2020-01-29 富士電機機器制御株式会社 電気機器の接続構造

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Publication number Priority date Publication date Assignee Title
JP2002151172A (ja) * 2000-11-15 2002-05-24 Matsushita Electric Works Ltd 端子装置
JP2004319392A (ja) * 2003-04-18 2004-11-11 Matsushita Electric Works Ltd 速結端子装置
JP2005235711A (ja) * 2004-02-23 2005-09-02 Nichifu Co Ltd 電線接続器
JP2013115006A (ja) * 2011-11-30 2013-06-10 Emuden Musen Kogyo Kk 端子台装置

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Publication number Priority date Publication date Assignee Title
JP4289230B2 (ja) * 2004-06-25 2009-07-01 パナソニック電工株式会社 速結端子装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002151172A (ja) * 2000-11-15 2002-05-24 Matsushita Electric Works Ltd 端子装置
JP2004319392A (ja) * 2003-04-18 2004-11-11 Matsushita Electric Works Ltd 速結端子装置
JP2005235711A (ja) * 2004-02-23 2005-09-02 Nichifu Co Ltd 電線接続器
JP2013115006A (ja) * 2011-11-30 2013-06-10 Emuden Musen Kogyo Kk 端子台装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116053246A (zh) * 2023-01-06 2023-05-02 株洲中车时代半导体有限公司 半导体功率模块及功率器件

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