JP2010040390A - Operation part unit, and circuit board unit comprising the operation part unit mounted on the circuit board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation part unit capable of mounting the operation part on a circuit board without screw cramps, and to provide a circuit board unit in which the operation part unit is mounted on the circuit board. <P>SOLUTION: Along the longitudinal edge of a circuit support plate 2, a rectangular switch support plate 3 for supporting an operation switch 20b is installed; a circuit support stand 2a and a circuit support piece 2b are installed on the circuit support plate 2; and the circuit board 50 is supported by the circuit support stand 2a and the circuit support plate 2b. Moreover, flexible plates 21, 26 are made to protrude from the edge of both end parts of the switch support plate 3; two locking protruded parts are respectively installed at the protruding end parts of the flexible plates 21, 26; the locking protruded parts are engaged with notches 50e, 50e of the circuit board 50; and without the use of screws, the circuit board unit is assembled, in a short time. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an operation unit having an operation unit operated for input to a circuit and a circuit board unit formed by attaching the operation unit to a circuit board.

  Since electrical equipment is manufactured by assembling a large number of parts, it is necessary to reduce the assembly process of electrical equipment in order to produce electrical equipment in a short time. It has been done to reduce the assembly process of equipment.

  For example, Patent Document 1 describes a front panel in which operation switches for operating electric devices are integrated. The front panel is screwed to the circuit board on which the push switch is mounted, and the push switch is pressed by the operation of the operation switch so that an on / off signal is input to the circuit on the circuit board. .

According to the front panel described in Patent Document 1, the process of attaching the operation switch to the front panel is reduced, and the manufacturing time of the electric device can be shortened.
Registered Utility Model Publication No. 3090037

  However, since the front panel described in Patent Document 1 is screwed to the circuit board, it takes a long time to attach the circuit board to the circuit board, and further improvement in manufacturing efficiency of electric devices is required. .

  The present invention has been made in view of such circumstances, and provides an operation unit unit capable of attaching an operation unit operated for input to a circuit to a circuit board without performing screwing, It is an object of the present invention to provide a circuit board unit in which the operation unit is attached to a circuit board.

  An operation unit unit according to the present invention supports a circuit support plate in which a support body that supports one surface of a circuit board is erected, and an operation unit that is operated for input to the circuit of the circuit board. An operation unit support plate standing on the circuit support plate, supporting the circuit board by the circuit support plate, and attaching the operation unit supported by the operation unit support plate to the circuit board. A flexible plate for pressing the edge of the circuit board from an edge of the operation unit support plate, and a protruding end portion of the flexible board protrudes from the edge of the circuit board. A locking projection for locking to the edge is provided.

  In the present invention, the operation support plate is provided on the circuit support plate on which the support is erected, the flexible plate protrudes from the edge of the operation support plate, and is locked to the protruding end of the flexible plate. Protrusions are provided, and one surface of the circuit board is supported by the support, and the operating protrusion unit is attached to the circuit board by engaging the engaging protrusions with the edges of the circuit board.

  In the operation unit according to the present invention, the operation unit support plate has a rectangular shape, one edge of the operation unit support plate is connected to the circuit support plate, and includes two flexible plates. Projecting from two other edges adjacent to one edge of the operation part support plate, respectively.

  In the present invention, a flexible plate is provided on each of the two other edges adjacent to one edge of the operation unit support plate, and two locking projections are provided on each of the flexible plates. The stop projections are respectively locked, and the operation unit is stably attached to the circuit board.

  In the operation unit according to the present invention, the locking protrusion has a truncated pyramid shape, and a locking piece that is locked to the other surface of the circuit board is provided on a side surface of the locking protrusion. Features.

  In the present invention, when a locking piece that is locked to the other surface of the circuit board is provided on the side surface of the locking protrusion, and the locking protrusion is locked to the edge of the circuit board, The locking piece is locked to the other surface of the circuit board to prevent the locking protrusion from coming off the edge of the circuit board.

  In the operation unit according to the present invention, the flexible plate and the operation unit support plate are continuous, and are fixed to a portion where the flexible plate and the operation unit support plate are connected, and the circuit board. It has a positioning piece for positioning the circuit board in contact with the corners.

  In the present invention, when a positioning piece is provided at a portion where the flexible plate and the operation unit support plate are connected, and the operation unit unit is attached to the circuit board, the corner of the circuit board is brought into contact with the positioning piece. The operation unit and the circuit board are positioned in the direction perpendicular to the circuit board.

  In the operation unit according to the present invention, the locking piece and the positioning piece are arranged so as to come into contact with the other surface of the circuit board when the one surface of the circuit board is supported by the support body. It is characterized by being.

  In the present invention, when one surface of the circuit board is supported by the support body, the positioning piece and the locking piece are arranged so as to be in contact with the other surface of the circuit board and operated in a direction perpendicular to the circuit board. Certainly position the unit.

  In the operation unit according to the present invention, the flexible plate is provided with a protrusion that contacts the edge of the circuit board, and the protrusion is between the locking protrusion and the operation portion support plate. It is arranged.

  In the present invention, when the operating portion unit is attached to the circuit board by providing a protrusion on the flexible plate and disposing the protrusion between the locking protrusion and the operation portion support plate. Further, the operation unit unit can be positioned in the direction along the edge of the circuit board by bringing the edge of the circuit board into contact with the protrusion.

  The operation unit according to the present invention is characterized in that the operation unit is a manually operated switch.

  A switch that needs to be exposed from a housing of an electric device for a user operation, for example, a manually operated switch is generally attached to the housing after being screwed to a circuit board. Since the switch needs to be screwed to the circuit board and positioned to the housing, the switch is attached to the housing for a long time. In the present invention, a switch that is manually operated can be attached to the circuit board in advance without using a screw, so that the switch is fixed to the circuit board in a short time, and then the switch is mounted on the housing. Positioning on the body can reduce the time required to assemble the electrical equipment.

  The circuit board unit according to the present invention supports a circuit support plate in which a support body that supports one surface of the circuit board is erected, and an operation unit that is operated for input to the circuit of the circuit board. An operation unit support plate standing on the circuit support plate, supporting the circuit board by the circuit support plate, and attaching the operation unit supported by the operation unit support plate to the circuit board. A circuit board unit in which an operation unit for mounting is attached to the circuit board, and a flexible plate for pressing the edge of the circuit board protrudes from the edge of the operation part support plate. The protruding end of the plate is provided with a locking protrusion that locks to the edge of the circuit board, and a notch is formed in the edge of the circuit board, and the locking protrusion is locked to the notch. It is characterized by being.

  In the present invention, when the operation unit is attached to the circuit board, the support body supports one surface of the circuit board, and the locking protrusion engages with the notch so that the operation unit unit is securely attached to the circuit board. It is done.

  In the operation unit according to the present invention, an operation unit support plate is erected on a circuit support plate having a support, and a flexible plate is protruded from an edge of the operation unit support plate. A locking projection is provided. The support is supported on one surface of the circuit support plate, the locking projection is locked to the edge of the circuit board, and the operation unit is attached to the circuit board. The operation unit can be attached to the circuit board. In addition, by forming a notch on the edge of the circuit board, engaging the locking protrusion with the notch, attaching the operation unit to the circuit board, and assembling the circuit board unit in advance, the manufacturing efficiency of the electrical equipment Can be improved.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. 1 is a schematic exploded perspective view of a switch unit and a circuit board, FIG. 2 is a schematic perspective view of the switch unit, FIG. 3 is a partially enlarged perspective view schematically showing a configuration near a locking projection, and FIG. 4 is a switch unit. FIG. 5 is a schematic perspective view of the circuit board unit. In FIG. 4, the locking piece is indicated by a two-dot chain line.

  In the figure, reference numeral 1 denotes a switch unit, and the switch unit 1 includes a rectangular circuit support plate 2 that supports a circuit board 50 described later. On the circuit support plate 2, one end of the circuit support plate 2 is provided with a truncated cone-shaped circuit support base 2 a substantially perpendicular to the circuit support plate 2. The circuit support 2 a is provided along the edge of one end of the circuit support plate 2. A plate-like circuit support piece 2 b that is substantially perpendicular to the circuit support plate 2 is provided along the edge of the other end of the circuit support plate 2.

  A rectangular switch support plate 3 for supporting operation switches 20b, 20b,..., 20b, which will be described later, is erected along the longitudinal edge of the circuit support plate 2. The longitudinal edge of the switch support plate 3 and the longitudinal edge of the circuit support plate 2 are continuous. Further, both end portions of the switch support plate 3 extend outward from the edges of both end portions of the circuit support plate 2.

  A rectangular switch frame 20 is formed on one end side of the switch support plate 3. A plurality of switch holes 20a, 20a,..., 20a are juxtaposed along the longitudinal direction inside the switch frame 20, and the switch holes 20a, 20a,. A plurality of operation switches 20b, 20b,..., 20b to be operated are respectively arranged. The operation switches 20b, 20b,..., 20b are connected to the switch support plate 3 via a plurality of rectangular connecting pieces 20c, 20c,. One end of the connecting piece 20c is connected to the circuit support plate 2, and the other end of the connecting piece 20c is connected to the operation switch 20b. A plurality of cylindrical arms 20d, 20d,..., 20d that are substantially perpendicular to the connection piece 20c are connected to the portion where the connection piece 20c and the operation switch 20b are connected, and the operation switches 20b, 20b,. It is fixed every time. The arm 20d is arranged so as to face the circuit support plate 2. When the operation switch 20b is pressed, the connecting piece 20c is bent and the tip of the arm 20d approaches the circuit support plate 2. Note that one end of the switch support plate 3 and one end of the circuit support plate 2 are connected by an L-shaped reinforcing body 2c.

  A flexible plate 21 that is substantially perpendicular to the switch support plate 3 protrudes from the edge of one end of the switch support plate 3 toward the circuit support plate 2. The flexible plate 21 has a triangular shape, and the flexible plate 21 includes an edge 21 a that is substantially perpendicular to the switch support plate 3. The flexible plate 21 is opposed to one edge 21 a of the flexible plate 21, and includes another edge 21 b that is inclined with respect to the switch support plate 3. The one edge 21 a is located closer to the circuit support plate 2, and the width between the one edge 21 a and the other edge 21 b is reduced toward the protruding end of the flexible plate 21.

  On the surface of the flexible plate 21 on the circuit support plate 2 side, a protruding projection of the flexible plate 21 is provided with a truncated pyramid-shaped locking projection 22 as shown in FIG. The locking protrusion 22 is disposed along one edge 21 a of the flexible plate 21. The locking protrusion 22 includes an inclined surface 22a that approaches the flexible plate 21 toward the protruding end. A rectangular locking piece 23 parallel to the circuit support plate 2 is fixed to a side surface of the locking projection 22 adjacent to the inclined surface 22a. The locking piece 23 and the top surface of the circuit support base 2a In between, the latching protrusion 22 is located.

  On the surface of the flexible plate 21 on the circuit support plate 2 side, a semi-cylindrical protrusion 24 is provided at a position separated from the locking protrusion 22 by an appropriate length. The protrusion 24 is arranged along one edge 21 a of the flexible plate 21. The protrusion 24 is located between the locking protrusion 22 and the switch support plate 3.

  A rectangular terminal frame body 25 is formed on the other end side of the switch support plate 3, and a plurality of terminal holes 25a, 25a,..., 25a are arranged in the longitudinal direction inside the terminal frame body 25. Along the line. A flexible plate 26 that is substantially perpendicular to the switch support plate 3 protrudes from the edge of the other end of the switch support plate 3 toward the circuit support plate 2. The flexible plate 26 has a triangular shape, and the flexible plate 26 includes an edge 26 a that is substantially perpendicular to the switch support plate 3. The flexible plate 26 is opposed to the one edge 26 a and includes another edge 26 b inclined with respect to the switch support plate 3. The one edge 26 a is located closer to the circuit support plate 2, and the width between the one edge 26 a and the other edge 26 b is reduced toward the protruding end of the flexible plate 26.

  On the surface of the flexible plate 26 on the circuit support plate 2 side, a truncated pyramid-shaped locking projection 27 is provided at the protruding end of the flexible plate 26. The locking projection 27 is arranged along one edge 26 a of the flexible plate 26. The locking protrusion 27 includes an inclined surface 27a that approaches the flexible plate 26 toward the protruding end. A rectangular locking piece 28 parallel to the circuit support plate 2 is fixed to a side surface of the locking projection 27 adjacent to the inclined surface 27a. A locking projection 27 is located between the locking piece 28 and the circuit support piece 2b.

On the surface of the flexible plate 26 on the circuit support plate 2 side, a semi-cylindrical protrusion 29 is provided at a position separated from the locking protrusion 27 by an appropriate length. The protrusion 29 is disposed along one edge 26 a of the flexible plate 26. The protrusion 29 is located between the locking protrusion 27 and the switch support plate 3.
A rectangular positioning piece 30 parallel to the circuit support plate 2 is fixed inside a corner portion formed by connecting the flexible plate 26 and the switch support plate 3. The positioning piece 30 and the locking pieces 23 and 28 are located on the same plane parallel to the circuit support plate 2.

  Each dimension between the circuit support piece 2b and the locking piece 28 and the positioning piece 30 is slightly larger than the thickness of the circuit board 50 to be described later, and between the circuit support base 2a and the locking piece 23. The dimension between them is the same.

  Next, the circuit board 50 to which the switch unit 1 is attached will be described. A plurality of push switches 51, 51,..., 51 are mounted side by side along the one edge portion 50c on the mounting surface 50a of the circuit board 50, and the push switches 51, 51,. Next to 51, a plurality of terminals 52, 52,..., 52 are mounted side by side along one edge 50 c of the circuit board 50. Two rectangular cutouts 50e and 50e are formed in the two other edge portions 50d and 50d perpendicular to the one edge portion 50c of the circuit board 50, respectively. The two notches 50e and 50e are separated from the one edge 50c of the circuit board 50 by an appropriate length, and the dimension between the one edge 50c and the notches 50e and 50e is the same as that of the locking protrusions 22 and 27 and the It is substantially equal to the dimension between the switch support plate 3. Moreover, the dimension of the notches 50e and 50e in the direction along the other edges 50d and 50d is smaller than the dimension of the locking pieces 23 and 28 in the direction along the one edge 21a and 26a.

Next, attachment of the switch unit 1 to the circuit board 50 will be described. FIG. 6 is a schematic partially enlarged plan view for explaining the engagement between the locking projection 27 of the circuit board unit and the notch 50e. In FIG. 6, the locking piece 28 is indicated by a two-dot chain line.
First, the one edge portion 50c of the circuit board 50 is opposed to the surface of the switch support plate 3 on the circuit support plate 2 side. Then, the two other edges 50d and 50d of the circuit board 50 and the two locking pieces 23 and 28 are brought into contact with each other, and the flexible plate 26 is bent outward as shown in FIG. I will. At this time, like the flexible plate 26, the flexible plate 21 is bent outward. And the non-mounting surface 50b of the circuit board 50 on the opposite side of the mounting surface 50a is supported by the top of the circuit support piece 2b and the top surface of the circuit support base 2a. With the non-mounting surface 50b supported, the switch unit 1 and the circuit board 50 are brought close to each other, and the locking protrusion 27 is engaged with one of the notches 50e as shown in FIG. 6B. At this time, similarly to the locking projection 27, the locking projection 22 is engaged with the other notch 50e. The two locking projections 22 and 27 press the notches 50 e and 50 e by the urging force of the flexible plates 21 and 26, and the switch unit 1 is fixed to the circuit board 50.

  The tips of the arms 20d, 20d,..., 20d are arranged at positions facing the push switches 51, 51,. For this reason, the push switch 51 is pressed against the tip of the arm 20d by the pressing of the operation switch 20b, and an ON signal or an OFF signal is input from the push switch 51 to a circuit formed on the circuit board 50. The terminals 52, 52,..., 52 are inserted into the terminal holes 25a, 25a,.

  The locking pieces 23 and 28 are locked to the edge portions of the notches 50e and 50e. Further, the positioning piece 30 is in contact with a corner portion of the circuit board 50 formed by the one edge portion 50c of the circuit board 50 and the other edge portion 50d of the circuit board 50 on the mounting surface 50a side. The two protrusions 24 and 29 are in contact with the two other edges 50d and 50d of the circuit board 50, respectively. By engaging the locking protrusions 22 and 27 with the notches 50e and 50e, the switch unit 1 is attached to the circuit board 50, and the circuit board unit is assembled.

  In the switch unit 1 according to the embodiment, the rectangular switch support plate 3 is provided along the longitudinal edge of the rectangular circuit support plate 2, and the operation switch 20 b is provided on the switch support plate 3. Further, the circuit support plate 2a and the circuit support piece 2b are provided on the circuit support plate 2, and the flexible plates 21 and 26 are projected from the edge of the end portion of the switch support plate 3, so that the projecting ends of the flexible plates 21 and 26 are provided. The locking projections 22 and 27 are provided on the portion. Therefore, when the circuit board 50 is disposed so as to face the circuit support plate 2, the circuit support base 2a and the circuit support piece 2b can support the non-mounting surface 50b of the circuit board 50. Further, the locking projections 22 and 27 are brought into contact with the edge of the circuit board 50 to bend the flexible plates 21 and 26, and the locking projections 22 and 27 are brought close to the notches 50e and 50e, The switch unit 1 can be attached to the circuit board 50 by engaging the locking protrusions 22 and 27 with the notches 50e and 50e by the urging force of the flexible plates 21 and 26. Therefore, the circuit board unit can be assembled in a short time without using screws. Moreover, since the latching protrusions 22 and 27 are engaged with the notches 50e and 50e, the switch unit 1 can be positioned in the direction along the other edge 50d.

  In the switch unit 1 according to the embodiment, the two flexible plates 21 and 26 are provided, and the two locking plates 22 and 27 are provided on both the flexible plates 21 and 26, respectively. By engaging the two locking protrusions 22 and 27 with 50e and 50e, respectively, the switch unit 1 can be fixed to both sides of the circuit board 50, and the switch unit 1 can be stably attached to the circuit board 50.

  In the switch unit 1 according to the embodiment, the locking protrusions 22, 27 are provided with locking pieces 23, 28 facing the circuit support plate 2 on the side surfaces thereof. When 27 is engaged with the notches 50e and 50e, the locking pieces 23 and 28 are locked to the edge portions of the notches 50e and 50e on the mounting surface 50a, so that the locking protrusions 22 and 27 are notched. It can prevent coming off from 50e and 50e.

  Further, in the switch unit 1 according to the embodiment, a positioning piece 30 is provided at a portion where the flexible plate 26 and the switch support plate 3 are connected, and the positioning piece 30 and the locking pieces 23 and 28 are provided. When the switch unit 1 is mounted on the circuit board 50, the mounting surface 50a of the circuit board 50 is fixed by the positioning piece 30 and the locking pieces 23 and 28. The circuit board 50 and the switch unit 1 can be positioned in a direction perpendicular to the circuit board 50. A positioning piece may be further provided at a portion where the flexible plate 21 and the switch support plate 3 are connected.

  Further, in the switch unit 1 according to the embodiment, the projecting portions 24 and 29 are provided on the flexible plates 21 and 26 between the locking pieces 23 and 28 and the switch support plate 3, thereby providing a circuit board. When the switch unit 1 is attached to the circuit board 50, the other edge parts 50d, 50d and the projecting parts 24, 29 are brought into contact with each other, and the other edge parts 50d, 50d are supported by the projecting parts 24, 29. The switch unit 1 can be positioned not only in the direction perpendicular to the direction but also in the direction along the one edge portion 50c.

  In the circuit board unit according to the embodiment, when the switch unit 1 is attached to the circuit board 50, the circuit support 2a and the circuit support piece 2b support the non-mounting surface 50b of the circuit board 50, and The locking protrusions 22 and 27 engage with the notches 50e and 50e, and the switch unit 1 is attached to the circuit board 50. At this time, the locking pieces 23 and 28 are locked to the edge portions of the notches 50e and 50e, and the locking protrusions 22 and 27 can be prevented from coming off from the notches 50e and 50e. Furthermore, the positioning surface 30 and the locking pieces 23, 28 are arranged on the same surface facing the circuit support plate 2, so that the mounting surface 50 a can be mounted on the positioning piece 30 and the locking pieces 23, 28. Further, by providing projections 24 and 29 on the flexible plates 21 and 26 between the locking pieces 23 and 28 and the switch support plate 3, the other edge portion 50d and the projections 24 and 29 are provided. And the protrusions 24 and 29 support the other edge part 50d, so that the switch unit 1 is placed in the direction perpendicular to the circuit board 50, the direction along the one edge part 50c, and the direction along the other edge part 50d. Can be positioned. In addition, when the circuit board 50 is manufactured, the switch unit 1 is attached to the circuit board 50, and the circuit board unit is assembled in advance, so that the manufacturing efficiency of the electrical equipment can be improved.

  In the circuit board unit according to the embodiment, the locking protrusions 22 and 27 are engaged with the notches 50e and 50e formed in the edge portion of the circuit board 50. Since no electronic component is mounted on the edge portion, the switch unit 1 can be attached to the circuit board 50 without reducing the area for mounting the electronic component.

  The switch unit 1 according to the embodiment includes an operation switch 20b that can input an ON signal or an OFF signal to the circuit by pressing. However, a rotary volume switch or the like can be used instead of the operation switch 20b. The switch may be provided.

1 is a schematic exploded perspective view of a switch unit and a circuit board according to an embodiment. 1 is a schematic perspective view of a switch unit according to an embodiment. FIG. 3 is a partially enlarged perspective view schematically showing a configuration near a locking projection in the switch unit according to the embodiment. It is a schematic plane sectional view of a switch unit concerning an embodiment. 1 is a schematic perspective view of a circuit board unit according to an embodiment. FIG. 6 is a partially enlarged plan view schematically illustrating the engagement between the locking protrusion and the notch of the circuit board unit according to the embodiment.

Explanation of symbols

1 Switch unit (operation unit)
2 Circuit support plate 3 Switch support plate (operation unit support plate)
2a Circuit support (support)
2b Circuit support piece (support)
20b Operation switch (operation unit, switch)
21, 26 Flexible plate 22, 27 Locking projection 23, 28 Locking piece 24, 29 Protrusion 30 Positioning piece 50 Circuit board 50e Notch

Claims (8)

A circuit support plate that has a support that supports one surface of the circuit board and an operation unit that is operated for input to the circuit of the circuit board are supported. An operation unit support plate for supporting the circuit board by the circuit support plate, and attaching the operation unit supported by the operation unit support plate to the circuit board,
A flexible plate for pressing the edge of the circuit board protrudes from the edge of the operation unit support plate,
An operation unit unit, wherein a locking projection for locking to an edge of the circuit board is provided at a protruding end of the flexible plate. The operation unit support plate is rectangular,
One edge of the operation unit support plate is connected to the circuit support plate,
Two flexible plates are provided,
2. The operation unit according to claim 1, wherein each of the flexible plates protrudes from two other edges adjacent to one edge of the operation unit support plate. The locking protrusion has a truncated pyramid shape,
The operation unit unit according to claim 1, wherein a locking piece that is locked to the other surface of the circuit board is provided on a side surface of the locking protrusion. The flexible plate and the operation unit support plate are continuous,
2. The positioning device according to claim 1, further comprising a positioning piece that is fixed to a portion where the flexible plate and the operation portion support plate are connected to each other and contacts the corner portion of the circuit board to position the circuit board. 4. The operation unit according to any one of 3 to 3.   The said locking piece and the said positioning piece are arrange | positioned so that the other surface of the said circuit board may be contacted, when the one surface of the said circuit board is supported by the said support body. The operation unit described in 1. The flexible plate is provided with a protrusion that contacts the edge of the circuit board,
The operation unit according to claim 1, wherein the protrusion is disposed between the locking protrusion and the operation unit support plate.   The operation unit according to claim 1, wherein the operation unit is a manually operated switch. A circuit support plate that has a support that supports one surface of the circuit board and an operation unit that is operated for input to the circuit of the circuit board are supported. An operation unit support plate, the circuit board is supported by the circuit support plate, and an operation unit unit for attaching the operation unit supported by the operation unit support plate to the circuit board is provided on the circuit board. A circuit board unit attached to
A flexible plate for pressing the edge of the circuit board protrudes from the edge of the operation unit support plate,
A locking protrusion is provided on the protruding end of the flexible plate to lock the edge of the circuit board.
A notch is formed at the edge of the circuit board,
The circuit board unit, wherein the locking protrusion is locked in the notch.

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