JP6822276B2 - Terminal devices and electronic devices - Google Patents

Description

The present invention relates to a terminal device and an electronic device such as a noise filter having the terminal device.

In a noise filter such as a small single-phase EMC filter for noise suppression, a so-called self-up screw type terminal device may be used. By operating this terminal device, wiring workability is improved. As a self-up screw type terminal device, for example, the terminal device shown in Patent Document 1 below is known.

In this terminal device, the moving terminal on which the screw is mounted is pushed toward the fixed terminal against the spring force, and the screw is screwed into the screw hole provided in the fixed terminal. As a result, a lead wire, a perforated terminal, or the like can be easily attached between the fixed terminal and the moving terminal.

However, the axis for pushing the screw and the axis for pushing the spring are separated, and the spring is pushed by the locking projection protruding in the direction perpendicular to the axis. Therefore, when the screw is pushed in, the moving terminal that supports the screw is easily tilted with respect to the axis, which causes resistance to the operation of pushing the screw and has a problem that it is difficult to screw the screw into the screw hole of the fixed terminal.

Japanese Unexamined Patent Publication No. 9-129277

The present invention has been made in view of such an actual situation, and an object of the present invention is a terminal device in which a fastener such as a screw can be easily pushed in smoothly and a moving terminal and a fixed terminal can be easily connected, and noise having the terminal device. It is to provide electronic devices such as filters.

In order to achieve the above object, the terminal device according to the present invention
With fixed terminals
A moving terminal that is arranged so that it can move closer and further away from the fixed terminal along the axial direction.
A terminal device that is attached to the moving terminal and has a fastener that is detachably fastened to the fixed terminal in a state where the moving terminal is close to the fixed terminal.
The moving terminal is
The mounting part to which the fastener is mounted and
It has a holding plate portion that is continuously molded integrally with the mounting portion and projects in a direction parallel to the axial direction at a position near the fixed terminal that does not interfere with the fixed terminal.
The holding plate portion
Insertion pieces inserted into the first end opening formed at the first end of the coiled spring, and
On both sides of the insertion protrusion, there are a pair of guide pieces formed in the same plate shape as the insertion protrusion and sandwiching both sides of the first end of the spring.

In the terminal device of the present invention, by pushing the mounting portion to which the fastener is mounted toward the fixed terminal, the first end of the spring into which the insertion projection piece is inserted is pushed axially by the holding plate portion. At that time, since both sides of the first end of the spring are sandwiched by a pair of guide pieces and the guide pieces are guided in the axial direction, the fastener attached to the attachment portion of the moving terminal is used. Easy to push in smoothly without tilting with respect to the fixed terminal. Further, when the fastener is fastened to the fixed terminal, the axis of the fastener is unlikely to be tilted, so that the fastener can be easily connected to the fixed terminal.

Further, since the holding plate portion has an insertion protrusion and a pair of guide pieces formed on both sides of the insertion protrusion in the same shape as the insertion protrusion, the pusher acting on the attachment portion of the moving terminal. The axis of pressure and the axis of pressing force acting on the spring by the insertion splinter can be located as close as possible. From this point of view as well, when the fastener mounted on the mounting portion is moved in the direction of pushing against the fixed terminal, the axis of the fastener is unlikely to tilt.

Further, since a fastener such as a screw is attached to the moving terminal, it is not necessary to prepare a screw or the like separately from the device in order to secure the connection of the terminal. Therefore, there is little risk of losing the screws and the like, and there is little risk of the screws and the like causing a failure such as a short circuit. Therefore, the terminal device of the present invention is suitable for use in a power supply circuit device such as a noise filter for a power supply circuit, a power converter, and a breaker device.

Preferably, the protruding length of the guide piece is longer than the protruding length of the insertion protrusion along the axial direction. With such a configuration, the guide operation by the guide piece is more stable, and the fastener can be easily pushed in smoothly without being tilted with respect to the fixed terminal. Further, when the fastener is fastened to the fixed terminal, the axis of the fastener is not easily tilted, so that the fastener can be easily connected to the fixed terminal.

Preferably, a support block having a guide groove into which both end ends of the pair of guide pieces are inserted is fixed adjacent to the fixing terminal. By guiding the guide piece along the guide groove of the support block, the shaft cores of the holding plate portion and the mounting portion of the moving terminal are less likely to be tilted.

Preferably, the support block is formed with a spring accommodating portion for accommodating the spring so as to communicate with the guide groove.
The second end of the spring is in contact with the bottom of the spring accommodating portion.

By accommodating the spring inside the spring accommodating portion, the shaft core of the spring is less likely to be tilted even when the spring is compressed and deformed, and the shaft core of the moving terminal mounting portion is also less likely to be tilted.

Preferably, the mounting portion and the holding plate portion of the moving terminal are continuous with a connecting piece having a width narrower than the width of the holding plate portion.
The support block is formed with a connecting groove into which the connecting piece is movably inserted.
The guide groove communicates with the outside of the support block by the connecting groove.

When the mounting portion of the moving terminal is pushed toward the fixed terminal, the connecting piece moves along the connecting groove, and the holding plate portion connected to the connecting piece compresses and deforms the spring. Therefore, the shaft core of the attachment portion of the moving terminal is less likely to be tilted with respect to the direction in which the fastener is pushed toward the fixed terminal.

A lid may be attached to the support block. Further, preferably, the lid body is provided with a stopper portion that prevents the guide piece from protruding from the guide groove due to the elastic force of the spring. By providing the stopper portion, even if the elastic force of the spring is strong, the guide piece is prevented from popping out from the guide groove.

The support block may be formed as a part of the casing, and a coil portion for an electronic device may be built in the casing. Further, the fixed terminal may be integrally formed with a metal plate arranged at the bottom of the support block, or may form a part of the ground terminal.

An electronic device such as a noise filter according to the present invention has the terminal device described in any of the above.

FIG. 1 is a perspective view of an electronic device equipped with a terminal device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the electronic device shown in FIG. FIG. 3 is a plan view of the electronic device along the line III-III shown in FIG. FIG. 4 is a cross-sectional view of the electronic device along the line IV-IV shown in FIG. FIG. 5A is an exploded perspective view showing a terminal device of the electronic device shown in FIG. FIG. 5B is a perspective view of a main part of the terminal device shown in FIG. 5A. FIG. 6A is a perspective view showing a moving terminal of the terminal device shown in FIG. 5B. FIG. 6B is a perspective view showing moving terminals of the other terminal devices shown in FIG. 5B. FIG. 7 is a cross-sectional view of a main part of the terminal device along the line VII-VII shown in FIG. 5A. FIG. 8 is a perspective view of a metal plate including a ground terminal of the electronic device shown in FIG.

Hereinafter, the present invention will be described based on the embodiments shown in the drawings.
As shown in FIG. 1, the electronic device 2 to which the terminal device according to the embodiment of the present invention is mounted has a casing 4 and a lid 6 that closes the upper opening of the casing 4. The casing 4 and the lid 6 are each composed of an insulating member such as a synthetic resin that is molded separately. The lid 6 is detachably attached to the upper opening of the casing 4 in the Z-axis direction, but may be fixed.

As shown in FIG. 2, the lid 6 is formed with a pair of through holes 6a (four in total) at the ends in the X-axis direction. The head portion 16b of the bolt 16 described later can be inserted into the through hole 6a.

Electronic components such as a coil portion 8 and a capacitor are arranged inside the casing 4, and these electronic components are connected so as to form a noise filter such as a single-phase EMC filter. Each lead portion 8a of the plurality of wires wound around the coil portion 8 is pulled out toward the line terminal device 10. Further, the electronic device 2 is grounded by a grounding terminal device 30 having a fixed terminal 32.

As shown in FIG. 3, the pair of grounding terminal devices 30 are alternately arranged at different positions along the Y axis on both sides of the device 2 in the X-axis direction. In the drawings, the X-axis, the Y-axis, and the Z-axis are perpendicular to each other. In the present embodiment, the X-axis coincides with the longitudinal direction of the device 2, and the Z-axis is in the height direction of the device 2. They match, and the Y-axis coincides with the directions in which the terminal devices 10 and 10 are adjacent to each other.

The terminal device according to the embodiment of the present invention is the ground terminal device 30, but first, the line terminal device 10 will be described. A pair of line terminal devices 10 are provided at both ends of the device 2 in the X-axis direction. As shown in FIGS. 5A and 5B, each terminal device 10 has a fixed terminal 12 and a moving terminal 14 which is arranged so as to be movable close to and away from the fixed terminal 12 along the Z-axis direction.

The fixed terminals 12 are fixed to the terminal blocks 4a integrally molded at both ends of the casing 4 in the X-axis direction with an adhesive or the like. A lead connection piece 12a is integrally formed with the fixed terminal 12. Each lead connection piece 12a is connected to a lead portion 8a from the coil portion 8 and a lead wire from an electronic component such as a capacitor mounted inside the casing 4. Further, a screw hole 12b is formed in the central portion of the fixed terminal 12. The screw portion 16a of the bolt 16 can be screwed into the screw hole 12b.

As shown in FIG. 5A, each bolt 16 is rotatably mounted in a mounting hole 14b of a square plate-shaped mounting piece (mounting portion) 14a formed in each moving terminal 14. A washer or the like may be interposed between the head portion 16b of the bolt 16 and the mounting piece 14a. As shown in FIG. 6B, a holding plate portion 14c is integrally formed with the mounting piece 14a of the moving terminal 14 via the connecting piece 14d. The holding plate portion 14c is formed by being bent at a substantially right angle with respect to the plate-shaped mounting piece 14a.

The width of the holding plate portion 14c in the X-axis direction is wider than the width of the connecting piece 14d in the X-axis direction, and has a shape that protrudes from the connecting piece 14d on both sides in the X-axis direction. The portions of the holding plate portion 14c located on both sides in the X-axis direction are the guide edge portions 14f, respectively. In the present embodiment, the width of the holding plate portion 14c in the X-axis direction is narrower than the width of the mounting piece 14a in the X-axis direction, but may be the same or larger. However, from the viewpoint of reducing the size of the device 2, the width of the holding plate portion 14c in the X-axis direction is preferably narrower than the width of the mounting piece 14a in the X-axis direction.

A pressing piece 14e is integrally formed at the lower end of the holding plate portion 14c in the Z-axis direction. The pressing piece 14e is formed by being bent from the lower end of the holding plate portion 14c to the same side as the mounting piece 14a. That is, the pressing piece 14e is substantially parallel to the mounting piece 14a formed by bending at the upper end of the holding plate portion 14c in the Z-axis direction. However, the size of the pressing piece 14e may be a size that can contact the first end 18a, which is the upper end of the spring 18 in the Z-axis direction, to compress and deform the spring 18, and is comparable to the mounting piece 14a. Small. The width of the pressing piece 14e in the X-axis direction is narrower than the width of the holding plate portion 14c in the X-axis direction, and is about the same as the width of the connecting piece 14d in the X-axis direction.

As shown in FIG. 7, each spring 18 is housed inside a spring accommodating portion 20 formed inside the terminal block 4a of the casing 4, and its first end 18a is attached to a pressing piece 14e of the moving terminal 14. The second end 18b opposite to the first end 18a is in contact with the bottom of the casing 20. In this embodiment, the second end 18b of the spring 18 is in contact with the bottom insulating wall of the casing 4.

The spring 18 is housed inside the accommodating portion 20 in a state where a compressive force acts, the first end 18a of the spring 18 abuts on the pressing piece 14e, and the pressing piece 14e is housed inside the accommodating portion 20 in the Z-axis direction. It is pushed up to the top of. The pressing piece 14e engages with the lower surface of the convex piece 12c formed on the fixed terminal 12 in the Z-axis direction, and further prevents the pressing piece 14e from going too far above in the Z-axis direction inside the accommodating portion 20. There is. In a state where the pressing piece 14e is engaged with the convex piece 12c, the head portion 16b of the bolt 16 attached to the moving terminal 14 protrudes from the through hole 6a of the lid 6 to the upper part in the Z-axis direction.

As shown in FIG. 3, the guide edge portion 14f of the moving terminal 14 shown in FIG. 6B can be inserted into the guide groove 22 formed in the upper portion of the terminal block 4a in the Z-axis direction, and the moving terminal 14 The guide edge portion 14f of the above is movable up and down in the Z-axis direction along the guide groove 22. A spring accommodating portion 20 shown in FIG. 7 is formed below the guide groove 22 in the Z-axis direction.

As shown in FIG. 1, at the position where the line terminal device 10 is arranged, a gap opening 7 that opens outward in the X-axis direction is formed between the casing 4 and the lid 6. With the moving terminal 14 located at the uppermost position in the Z-axis direction as shown in FIG. 2, if the external terminal 50 to which the lead wire is connected is inserted from the gap opening 7 shown in FIG. 1, the external terminal 50 can be inserted. The terminal hole 51 is aligned with the screw hole 12b of the fixed terminal 12 shown in FIG. 5A.

In that state, if the tip of a tool (for example, a screwdriver) is pressed against the head 16b of the bolt 16 shown in FIG. 1 and the bolt 16 is pushed downward from the through hole 6a on the Z axis, the elastic force of the spring 18 shown in FIG. The moving terminal 14 moves downward along the Z-axis together with the bolt 16. The screw portion 16a of the bolt 16 begins to enter the inside of the screw hole 12b of the fixed terminal 12 in the middle of the downward movement of the moving terminal 14. At that position, if the bolt 16 is rotated around the axis of the screw portion 16b, the screw portion 16a is screwed into the screw hole 12b.

Although omitted in FIG. 7, the external terminal 50 shown in FIG. 1 is sandwiched between the fixed terminal 12 shown in FIG. 7 and the mounting piece 14a of the moving terminal 14. By screwing the screw portion 16a into the screw hole 12b, the external terminal 50 is fixed between the fixed terminal 12 and the mounting piece 14a of the moving terminal 14, and the external terminal 50 is electrically connected to the fixed terminal 12. Will be done. At least the fixed terminal 12 is formed by processing a conductive plate material such as metal, and preferably the moving terminal 14 is also formed by processing a conductive plate material such as metal. However, the moving terminal 14 does not necessarily have to be made of a conductive material such as metal. This is because, as shown in FIG. 2, the fixed terminal 12 is connected to the lead portion 8a or the like.

In the present embodiment, as shown in FIG. 6B, the mounting piece 14a and the pressing piece 14e of the moving terminal 14 are bent to the same side along the Y-axis direction at the top and bottom of the holding piece 14c in the Z-axis direction. .. As shown in FIG. 3, the guide edge portion 14f of the holding piece 14c is adapted to enter the guide groove 22 of the terminal block 4a. Therefore, even if the pair of line terminal devices 10 are arranged side by side in the Y-axis direction at the ends of the device 2 in the X-axis direction, the width of the device 2 in the Y-axis direction can be minimized. it can.

Next, the grounding terminal device 30 according to this embodiment will be described. The grounding terminal device 30 is located at both ends of the device 2 in the X-axis direction, at positions adjacent to the line terminal device 10 in the Y-axis direction, and is approximately wider in the X-axis direction of the terminal device 10 than the terminal device 10. It is arranged by pulling it inward in the X-axis direction with the corresponding width. Moreover, these grounding terminal devices 30 are arranged so as to be located on opposite sides of the device 2 along the Y-axis direction.

As shown in FIGS. 5A and 5B, each terminal device 30 has a fixed terminal 32 and a moving terminal 34 which is arranged so as to be movable close to and away from the fixed terminal 32 along the Z-axis direction. The fixed terminal 32 is integrally formed on the upper portion of the connecting piece 32a raised from a predetermined position of the metal plate 32c attached to the lower end of the casing 4 in the Z-axis direction in the upward direction of the Z-axis.

As shown in FIG. 8, the metal plate 32c has a connecting piece 32d raised from the metal plate 32c upward on the Z axis at a predetermined position. For example, a lead wire from an electronic component such as a capacitor mounted inside the casing 4 shown in FIG. 2 is connected to the tip of the connection piece 32d to enable grounding of the electronic circuit.

As shown in FIG. 5A, a screw hole 32b is formed in the central portion of the fixed terminal 32. The screw portion 36a of the bolt 36 can be screwed into the screw hole 32b. Each bolt 36 is rotatably mounted in a mounting hole 34b of a disk-shaped mounting piece (mounting portion) 34a formed in each moving terminal 34. A washer or the like may be interposed between the head 36b of the bolt 36 and the mounting piece 34a. As shown in FIG. 6A, a holding plate portion 34c is integrally formed with the mounting piece 34a of the moving terminal 34 via the connecting piece 34d. The holding plate portion 34c is formed by being bent at a substantially right angle with respect to the plate-shaped mounting piece 34a and the connecting piece 34d.

The width of the holding plate portion 34c in the Y-axis direction is wider than the width of the connecting piece 34d in the Y-axis direction, and has a shape that protrudes from the connecting piece 34d on both sides in the Y-axis direction. The portions of the holding plate portion 34c located on both sides in the Y-axis direction are the guide pieces 34f, respectively. In the present embodiment, the width in the Y-axis direction of the holding plate portion 34c is configured to be equal to or larger than the width in the Y-axis direction of the mounting piece 34a, but may be smaller than that. However, from the viewpoint of smoothing the movement of the moving terminal 34 in the Z-axis direction, the width of the holding plate portion 34c in the Y-axis direction is preferably equal to or greater than the width of the mounting piece 34a in the Y-axis direction.

As shown in FIG. 5B, the holding plate portion 14c is located near the fixed terminal 32, inside the fixed terminal 32 in the X-axis direction, at a position that does not interfere with the fixed terminal 32, and from the connecting piece 34d downward in the Z-axis. It is protruding. As shown in FIG. 6A, the holding plate portion 34c has an insertion projection piece 34e inserted into the first end opening formed at the first end 38a, which is the upper end of the coiled spring 38 in the Z-axis direction.

Further, the holding plate portion 34c is formed on both sides of the insertion projecting piece 34e in the same plate piece shape as the insertion projecting piece 34e, and has a pair of guide pieces 34f sandwiching both sides of the first end 38a of the spring 38 in the Y-axis direction. Have. Insertion grooves having the same depth are formed between the pair of guide pieces and the insertion projection pieces 34e, and the first end 38a of the spring 8 is inserted into the inside of these insertion grooves. There is.

In the present embodiment, both end ends of the pair of guide pieces 34f are inserted into the guide groove 42 formed in the support block 4b integrally formed at a predetermined position of the casing 4 shown in FIG. 5A from the upper part in the Z-axis direction. It is possible. The support block 4b is fixed adjacent to the inside of the fixed terminal 32 in the X-axis direction. By guiding the guide piece 34f along the guide groove 42 of the support block 4b, the shaft core of the mounting piece 34a of the moving terminal 30 (the shaft core of the mounting hole 34b) is less likely to tilt.

As shown in FIG. 4, the support block 4b is formed with a spring accommodating portion 40 for accommodating the spring 38 communicating with the guide groove 42, and the second end of the spring 38 is formed at the bottom of the spring accommodating portion 40. 38b is in contact. By accommodating the spring 38 inside the spring accommodating portion 40, the axis of the spring 38 is less likely to be tilted even when the spring 38 is compressed and deformed, and the axis of the mounting piece 34a of the moving terminal 34 shown in FIG. Is also difficult to tilt.

As shown in FIG. 5A, the support block 4b is formed with a connecting groove 44 into which the connecting piece 34d of the moving terminal 34 is movably inserted, and the connecting groove 44 allows the guide groove 42 to be X of the supporting block 4b. It communicates with the outside in the axial direction. The guide groove 42 is also open at the upper part in the Z-axis direction.

When the mounting piece 34a of the moving terminal 34 is pushed together with the bolt 36 toward the fixed terminal 32, the connecting piece 34d moves along the connecting groove 44, and the holding plate portion 34c connected to the connecting piece 34d moves. The spring 38 is compressed and deformed. Therefore, the shaft core of the mounting piece 34a of the moving terminal 34 is less likely to be tilted in the direction of pushing the bolt 36 toward the fixed terminal 32.

As shown in FIG. 2, the lid 6 is mounted on the support block 4b. As shown in FIG. 4, the back surface of the lid 6 is provided with a stopper piece (stopper portion) 6b that prevents the guide piece 34f from protruding from the guide groove 42 by the elastic force of the spring 38. By providing the stopper piece 6b, even if the elastic force of the spring 38 is strong, the guide piece 34f is prevented from jumping out from the guide groove 42 upward on the Z axis.

In the present embodiment, as shown in FIG. 6A, the protruding length of the guide piece 34f is longer than the protruding length of the insertion projecting piece 34e along the Z-axis direction. With this configuration, the guide operation by the guide piece 34f is more stable, and the bolt 36 as a fastener can be easily pushed in smoothly without being tilted with respect to the fixed terminal 32. Further, when the bolt 36 is fastened to the screw hole 32b of the fixed terminal 32, the axis of the bolt 36 is not easily tilted, so that the bolt 36 can be easily connected to the fixed terminal 32.

The spring 38 is preferably the same as the spring 18 from the viewpoint of sharing components, but it does not necessarily have to be the same. Further, it is preferable that the bolt 36 is the same as the bolt 16 from the viewpoint of sharing components, but it is not always necessary to be the same.

As shown in FIG. 4, each spring 38 is housed inside a spring accommodating portion 40 formed inside the support block 4b of the casing 4, and the second end 38b opposite to the first end 38a is housed in the spring accommodating portion 40. It is in contact with the bottom of the accommodating portion 40. In the present embodiment, the second end 38b of the spring 38 is in contact with the bottom insulating wall of the casing 4, but the present invention is not limited to this, and the second end 38b may be in direct contact with the upper surface of the metal plate 32c.

The spring 38 is housed inside the accommodating portion 40 in a state where a compressive force acts, and the first end 38a of the spring 38 pushes the moving terminal 34 up inside the accommodating portion 40 in the Z-axis direction.

As shown in FIG. 1, in a state where the moving terminal 14 is located at the uppermost position in the Z-axis direction, the external terminal 52 to which the lead wire is connected is placed between the screw portion 36a of the bolt 36 and the fixed terminal 32. When inserted, the terminal hole 53 of the external terminal 52 is aligned with the screw hole 32b of the fixed terminal 32.

In this state, if the tip of a tool (for example, a screwdriver) is pressed against the head 36b of the bolt 36 and the bolt 36 is pushed downward on the Z axis, the moving terminal 34 resists the elastic force of the spring 38 shown in FIG. Moves down the Z axis with the bolt 36. The screw portion 36a of the bolt 36 begins to enter the inside of the screw hole 32b of the fixed terminal 32 in the middle of the downward movement of the moving terminal 34. If the bolt 36 is rotated around the shaft core of the screw portion 36b at that position, the screw portion 36a is screwed into the screw hole 32b.

As a result, the external terminal 52 shown in FIG. 1 is sandwiched between the fixed terminal 32 and the mounting piece 34a of the moving terminal 34. By screwing the screw portion 36a into the screw hole 32b, the external terminal 52 is fixed between the fixed terminal 32 and the mounting piece 34a of the moving terminal 34, and the external terminal 52 is electrically connected to the fixed terminal 32. Will be done.

At least the fixed terminal 32 is formed by processing a conductive plate material such as metal, and preferably the moving terminal 34 is also formed by processing a conductive plate material such as metal. However, the moving terminal 34 does not necessarily have to be made of a conductive material such as metal. This is because the fixed terminal 32 is integrated with the metal plate 32c to be grounded, and if the fixed terminal 32 and the external terminal 52 are connected, the purpose of grounding is achieved.

In the terminal device 30 of the present embodiment, the first spring 38 into which the insertion projection piece 34e shown in FIG. 4 is inserted by pushing the mounting piece 34a to which the bolt 36 as a fastener is attached toward the fixed terminal 32. The end 38a is pushed axially by the moving terminal 34. At that time, the first end 38a of the spring 38 is sandwiched by a pair of guide pieces 34f on both sides thereof, and the guide pieces 34f are guided in the Z-axis direction by the guide groove 42. The bolt 38 mounted on the mounting piece can be easily pushed in smoothly without being tilted with respect to the fixed terminal 32. Further, when the bolt 38 is fastened to the fixed terminal 32, the axis of the bolt 38 is difficult to tilt, so that the bolt 38 can be easily screwed into the screw hole 32b of the fixed terminal 32.

Further, as shown in FIG. 6A, the holding plate portion 34c has an insertion protrusion 34e and a pair of guide pieces 34f formed on both sides of the insertion protrusion 34e in the same shape as the insertion protrusion 34e. Therefore, the axis of the pressing force by the bolt 38 acting on the mounting piece 34a of the moving terminal 34 and the axis of the pressing force acting on the spring 38 by the insertion projecting piece 34e can be positioned as close as possible. From this point of view as well, when the bolt 38 mounted on the mounting piece 34a shown in FIG. 1 is moved in the pushing direction with respect to the fixed terminal 32, the axis of the bolt 36 is unlikely to tilt.

Further, since the bolt 36 is attached to the moving terminal 34, it is not necessary to prepare a bolt, a screw, or the like separately from the device 2 in order to secure the connection of the terminal 52. Therefore, there is little risk of losing bolts and screws, and there is little risk of bolts and screws causing a failure such as a short circuit. Therefore, the terminal device 30 of the present embodiment is suitable for use in a power supply circuit device such as a noise filter for a power supply circuit, a power converter, and a breaker device.

The present invention is not limited to the above-described embodiment, and can be variously modified within the scope of the present invention.

For example, as the fastener, a screw, a screw, or the like can be used in addition to the bolt 36. Further, the external terminals 50 and 52 shown in FIG. 1 are not limited to the perforated terminals, and may be the tip of the lead wire itself or other terminals.

Further, the terminal device of the present invention may be used for applications other than the grounding terminal device, and can be used, for example, for a line terminal device or a terminal device for a circuit for other purposes.

2 ... Electronic equipment 4 ... Casing 4a ... Terminal block 4b ... Support block 6 ... Lid body 6a ... Through hole 6b ... Stopper piece (stopper part)
7 ... Gap opening 8 ... Coil part 8a ... Lead part 10 ... Line terminal device 12 ... Fixed terminal 12a ... Lead connection piece 12b ... Screw hole 12c ... Convex piece 14 ... Moving terminal 14a ... Mounting piece (mounting part)
14b ... Mounting hole 14c ... Holding plate part 14d ... Connecting piece 14e ... Pressing piece 14f ... Guide edge 16 ... Bolt 16a ... Screw part 16b ... Head 18 ... Spring 18a ... First end 18b ... Second end 20 ... Spring accommodation Part 22 ... Guide groove 30 ... Grounding terminal device 32 ... Fixed terminal 32a ... Connection piece 32b ... Screw hole 32c ... Metal plate 32d ... Connection piece 34 ... Moving terminal 34a ... Mounting piece (mounting part)
34b ... Mounting hole 34c ... Holding plate 34d ... Connecting piece 34e ... Insertion projecting piece 34f ... Guide piece 36 ... Bolt (fastener)
36a ... Threaded portion 36b ... Head 38 ... Spring 38a ... First end 38b ... Second end 40 ... Spring accommodating portion 42 ... Guide groove 44 ... Connecting groove 50, 52 ... External terminals 51, 53 ... Terminal holes

Claims (7)

With fixed terminals
A moving terminal that is arranged so that it can move closer and further away from the fixed terminal along the axial direction.
A terminal device that is attached to the moving terminal and has a fastener that is detachably fastened to the fixed terminal in a state where the moving terminal is close to the fixed terminal.
The moving terminal is
The mounting part to which the fastener is mounted and
It has a holding plate portion that is continuously molded integrally with the mounting portion and projects in a direction parallel to the axial direction at a position near the fixed terminal that does not interfere with the fixed terminal.
The holding plate portion
Insertion pieces inserted into the first end opening formed at the first end of the coiled spring, and
On either side of the insertion piece, it is formed on the insertion piece of the same plate piece-like, have a, a pair of guide pieces sandwiching the both sides of the first end of said spring,
A support block having a guide groove into which both end ends of the pair of guide pieces are inserted is fixed adjacent to the fixed terminal.
The mounting portion and the holding plate portion of the moving terminal are continuous with a connecting piece having a width narrower than the width of the holding plate portion.
The support block is formed with a connecting groove into which the connecting piece is movably inserted.
The connecting groove allows the guide groove to communicate with the outside of the support block, and the mounting portion is located outside the support block.
A terminal device in which both sides of the first end of the spring are sandwiched by a pair of guide pieces, and the guide pieces are guided by the guide grooves . The terminal device according to claim 1, wherein the protruding length of the guide piece is longer than the protruding length of the insertion protrusion along the axial direction. The support block is formed with a spring accommodating portion for accommodating the spring so as to communicate with the guide groove.
The terminal device according to claim 1 or 2 , wherein the second end of the spring is in contact with the bottom of the spring accommodating portion. A lid is attached to the support block,
The terminal device according to any one of claims 1 to 3 , wherein the lid body is provided with a stopper portion that prevents the guide piece from protruding from the guide groove by the elastic force of the spring. The terminal device according to any one of claims 1 to 4 , wherein the support block is formed as a part of a casing, and a coil portion for an electronic device is built in the casing. The terminal device according to any one of claims 1 to 5 , wherein the fixed terminal is formed integrally with a metal plate arranged at the bottom of the support block and constitutes a part of the ground terminal. An electronic device having the terminal device according to any one of claims 1 to 6 .

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