JP2010055844A - Ventilation fan switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation fan switch having improved operability during on/off operation of a ventilation fan or setting operation of the ventilation fan. <P>SOLUTION: The ventilation fan switch comprises a body 2 storing a printing board on which a circuit is formed to control the operation of the ventilation fan, and mountable on a mounting frame for embedded wiring equipment, an operation switch and a setting operation switch 6 provided on the surface of the body 2, and an operation handle 10 for pushing the operation switch at its reverse side. The operation handle 10 consists of: a handle body 11 having an operation hole 11a via which the setting operation switch 6 can be operated, and rotatably mounted on the front face of the body 2; and a handle cover 13 closeably covering the operation hole 11a. The setting operation switch 6 has a mechanism for alternately selecting a storing condition in which a rotary knob 7 is moved back to the inside of the body 2 or a protruding condition in which it protrudes in comparison with the storing condition each time when the rotary knob 7 exposed to the front face of the body 2 is operated to be pushed down. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a ventilation fan switch.

  Conventionally, as a switch for switching on / off of a ventilation fan disposed in a bathroom or toilet, an operation switch for switching on / off of the ventilation fan and a setting operator for switching the operation of the ventilation fan (for example, operation time). (For example, patent document 1).

  This type of switch has a shape that can be attached to the mounting frame of the large-angle continuous wiring equipment standardized by JIS standard, and the operability of the operation switch and setting operator for switching on / off the ventilation fan It is important.

  In the switch disclosed in Patent Document 1, the body has a size (two module dimensions) corresponding to two unit dimensions (one module dimension) that can be mounted on a mounting frame of a large-angle continuous wiring apparatus. Is formed.

  On the upper front side of the body, a setting operation element is exposed and installed. In addition, an operation switch is arranged on the lower front side of the body, and an operation handle formed in a module size is attached so as to cover the operation switch. By operating the operation handle, the ventilation fan is operated. Turn on / off.

  As a switch that provides high operability, there is a switch disclosed in Patent Document 2 in which the operability of the operation handle is improved by covering a setting operation element that is less frequently used with the operation handle.

  This switch includes an operation handle for operating the operation switch, which is held by the body so as to cover the front surface of the body formed in the size of two modules.

  The operation handle is composed of a handle body having an operation hole for operating a setting operation element arranged on the surface of the container body, and a handle cover capable of opening and closing the operation hole. It is structured to be hidden by closing the handle cover.

In addition, by closing the handle cover, the size of the operation handle can be reduced to the size of two modules, thereby realizing high operability.
JP 2001-227804 A JP 2005-174880 A

  However, in the ventilation fan switch disclosed in Patent Document 1, since the operation setting switch that is not frequently used and is not frequently used is exposed on the front side of the body, even if an attempt is made to increase the size of the operation handle, The size of the operation handle is limited by the size of the setting operator, and there is a limit to improving the operability of the operation switch.

  Further, in the switch disclosed in Patent Document 2, since the setting operator needs to be hidden by the handle cover of the operation handle, the height of the setting operator is limited by the thickness of the handle cover, and the operability is low.

  Here, if the thickness of the operation handle is increased in order to increase the operability of the setting operator, there is a high possibility that it will inadvertently touch when installed on the wall, and the design consistency with other switches There was a problem that could not be taken.

  The present invention has been made in view of the above-described reasons, and an object thereof is to provide a ventilation fan switch with improved operability in the on / off operation of the ventilation fan and the setting operation of the ventilation fan operation. It is in.

  In order to achieve the above object, according to the first aspect of the present invention, when the mechanical operation switch is attached to the body so as to cover the front surface of the body, and the front surface is pushed. An operation handle that pushes the operation switch on the back surface, the body includes an opening / closing element that turns on / off power supply to the ventilation fan, an opening / closing control means that opens / closes the opening / closing element according to the operation of the operation switch, and the body A setting operation switch that is installed so that the setting operation element is exposed at a position different from the operation switch on the front surface, and a setting means that sets the operation of the open / close control means according to the setting operation of the setting operation element. The operation handle is composed of a handle body having an operation hole that allows the setting operation element to be operated from the outside, and a handle cover that is held by the handle body on the front side of the handle body and can open and close the operation hole. The fixed operation switch has a retracted state in which the setting operator is retracted inward of the body each time the setting operator is pressed from the front, and a protrusion in which the setting operator protrudes forward compared to the retracted state. It has the mechanism which switches a state alternately.

  According to a second aspect of the present invention, in the first aspect of the present invention, a protrusion for pressing the setting operator is provided on a back surface of the handle cover that faces the setting operator when the handle cover is closed. It is characterized by that.

  According to the first aspect of the present invention, by opening the handle cover so that the operation hole is opened and pressing the setting operation element, the setting operation element protrudes to the front rather than the stored state. Since the knob knob of the child becomes large, the setting operator can be easily operated.

  Also, by pressing the setting operator again, the setting operator is retracted from the protruding state toward the inside of the instrument, and the protrusion on the front of the instrument is smaller than in the protruding condition, so the thickness of the operation handle is reduced. The possibility of being inadvertently touched and operated can be reduced, and the appearance can be unified with other switches arranged in parallel with the present switch.

  In this way, it is possible to provide a ventilation fan switch with high operability of the operation switch and high operability of the setting operator.

  According to the invention of claim 2, by closing the handle cover, even if the setting operator protrudes, the setting operator is pushed by the protrusion on the back surface of the handle cover and retracts to the storage state. An exhaust fan switch with improved operability can be provided by eliminating the need to push the setting operation element into the retracted state.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
Fig.1 (a) is a perspective view which shows the ventilation fan switch concerning Embodiment 1 of this invention, FIG.1 (b) is a schematic sectional drawing which shows the principal part of the ventilation fan switch. FIG. 2 is a perspective view showing a state where the operation setting of the ventilation fan switch is performed. FIG. 3 is an exploded perspective view of the ventilation fan switch. FIG. 4 is a schematic circuit diagram showing an internal circuit of the ventilation fan switch.

  The ventilation fan switch of the present embodiment is held by the body 2 so as to cover the body 2 containing a printed circuit board (not shown) in which the circuit shown in the block circuit diagram of FIG. And an operation handle 10 for operating the operation switch 5.

  As shown in the block circuit diagram of FIG. 4, the ventilation fan switch of the present embodiment includes a pair of connection terminals 29a and 29b to which a series circuit of a ventilation fan 32 and a commercial power supply 31 is connected. A control circuit 21 that includes a timer (not shown) that counts the operation time of the ventilation fan 32 and controls the entire circuit, a switching element 22 such as a triac connected between the connection terminals 29a and 29b, and a control An opening / closing drive unit 23 for turning on / off the power supply to the ventilation fan 32 by turning on / off the opening / closing element 22 in accordance with a control signal input from the circuit 21; and an operation setting unit 25 for setting an operation time of the ventilation fan 32; A power circuit 27 for supplying power to the control circuit 21 and the opening / closing drive unit 23 is provided as a main configuration. Here, the control circuit 21 and the opening / closing drive unit 23 constitute an opening / closing control means.

  When there is an operation input from the operation switch 5 while the ventilation fan 32 is stopped, the control circuit 21 outputs a control signal to the opening / closing drive unit 23 and operates the ventilation fan 32 by turning on the opening / closing element 22. The control circuit 21 includes a timer (not shown) that counts the operation time of the ventilation fan 32. When the count value of the timer reaches the value (delay stop time) set by the operation setting unit 25, the control circuit 21 While resetting the count value, the ventilating fan 32 is stopped by outputting a control signal to the open / close drive unit 23 to turn off the open / close element 22.

  The operation setting unit 25 includes a setting operation switch 6 composed of a rotary switch. The operation setting unit 25 operates the ventilation fan 32 when operating the operation switch 5 according to the setting position of the setting operation switch 6 until the ventilation fan 32 is stopped. The delay stop time can be set.

  The connection terminals 29a and 29b are connected to AC connection terminals of a full-wave rectifier 28 formed of a diode bridge. A power supply circuit 27 is connected between the DC connection terminals of the full-wave rectifier 28. The power supply circuit 27 includes a resistor (not shown) that is a current limiting element, and includes a charging element (not shown) such as a capacitor that is charged by a current supplied via a full-wave rectifier 28, The charging voltage of the element is supplied to the control circuit 21 and the opening / closing drive unit 23 as an operating voltage.

  When the ventilation fan 32 is stopped, the control circuit 21 outputs an open control signal to the opening / closing drive unit 23 to turn off the opening / closing element 22 and stop the power supply to the ventilation fan 32. The power supply circuit 27 is charged to a predetermined voltage value by a charging current supplied through the full-wave rectifier 28, and this charging voltage is supplied to the control circuit 21 and the opening / closing drive unit 23. When the switching element 22 is off, the impedance of the power supply circuit 27 is set to a high impedance so that the ventilation fan 32 does not operate due to the current flowing between the connection terminals 29a and 29b.

  Here, when the control circuit 21 receives an operation input from the operation switch 5 while the ventilation fan 32 is stopped, the control circuit 21 rapidly charges the capacitor of the power supply circuit 27 with the opening / closing element 22 open. When the capacitor of the power supply circuit 27 is charged to a specified voltage, the control circuit 21 outputs a close control signal to the open / close drive unit 23 to turn on the open / close element 22. The opening / closing element 22 continues to be turned on until the load current reaches zero crossing, during which the power is supplied to the ventilation fan 32, and the ventilation fan 32 is in an operating state.

  Next, when the switching element 22 is turned off at the zero cross point of the load current, the control circuit 21 rapidly charges the capacitor of the power supply circuit 27. When the charging voltage of the power supply circuit 27 reaches a specified voltage, the control circuit 21 supplies power to the ventilation fan 32 by turning on the switching element 22 until the load current crosses zero again using the switching drive unit 23.

  The control circuit 21 repeatedly performs the above operation while the count value of the timer included in the control circuit 21 is equal to or less than the set value set by the setting circuit 25, whereby the power supply circuit 27 is charged to a specified voltage, While power is supplied to the control circuit 21 and the opening / closing drive unit 23, power is supplied to the ventilation fan 32, and the ventilation fan 32 continues to operate.

  Thus, in the power supply circuit 27, when the ventilation fan 32 is stopped, the operating power is generated from the leakage current of the ventilation fan 32 flowing through the connection terminals 29a and 29b, and when the ventilation fan 32 is operated, the switching element 22 is moved from the zero cross point of the commercial power supply 31. Since the operating power is generated by using the power supplied via the connection terminals 29a and 29b as the power source until the power is turned on, a series circuit of the commercial power supply 31 and the ventilation fan 32 is connected between the pair of connection terminals 29a and 29b. Therefore, wiring can be performed by the same connection method as that of a general switch. Therefore, the wiring design can be performed in the same manner as a general switch, and the work of constructing the ventilation fan switch in place of the existing switch can be easily performed.

  Next, the structure of the ventilation fan switch of this embodiment is demonstrated based on FIGS.

  The body 2 of the ventilation fan switch 1 has a rectangular parallelepiped shape, which is formed in a substantially box shape having a front surface opened by a synthetic resin, and a substantially box shape having a rear surface opened by a synthetic resin. The cover 4 is attached to the opening. That is, each pair of assembly pieces 4 a extends rearward from the rear edge of the upper and lower surfaces of the cover 4, and assembly protrusions 4 b provided in the assembly pieces 4 a are formed on both upper and lower surfaces of the body 3. The body 3 and the cover 4 are joined by engaging with 3a.

  The body 2 can be attached to a conventionally known attachment frame 41 for a large-angle continuous wiring apparatus standardized by the JIS standard. The horizontal dimension of the container body 2 is formed to be approximately the same as the horizontal dimension (short dimension) of the window hole 41 a provided in the mounting frame 41. The vertical dimension of the container body 2 is the same as that of the mounting frame 41. It is formed to have a size approximately equal to the size (2 module size) of two unit dimensions (1 module size) that can be attached up to 3.

  A pair of mounting claws 4c that can be engaged with the instrument mounting holes 41b provided on the left and right side pieces surrounding the window hole of the mounting frame 41 project from the left and right side surfaces of the cover 4 that forms the front portion of the body 2 one by one. When the attachment claw 4c is engaged with the instrument attachment hole 41b, the body 2 is held by the attachment frame 41.

  When attaching the container 2 to the attachment frame 41, the attachment claws 4 c provided on the left side wall of the cover 4 are inserted into the instrument attachment holes 41 b of the attachment frame 41, and the attachment claws 4 c provided on the right side wall are attached to the cover 4. When the container body 2 is inserted into the window hole 41a of the mounting frame 41 so as to be retracted from the side surface, the mounting claw 4c on the right side wall is inserted into the instrument mounting hole 41b and the container body 2 is held by the mounting frame 41.

  The attachment frame 41 is attached to a construction surface such as a wall surface, and the rear portion of the vessel 2 is embedded in an attachment hole that opens to the construction surface. A decorative plate 42 having a window hole 42a that is longer and wider than the window hole 41a of the mounting frame 41 is disposed on the front surface side of the mounting frame 41 so as to overlap with the ventilation fan switch from the window hole 42a of the decorative plate 42. 1 functional surface is exposed.

  In addition, the blank cover 43 is attached to a portion corresponding to the hole of one module size formed by attaching the two module size of the body to the window hole 41a of the mounting frame 41 of the window hole 42a of the decorative plate 42. Thus, the hole of one module size of the window frame 41a of the mounting frame 41 can be hidden.

  Inside the container body 2 is housed a printed wiring board (not shown) on which circuit components constituting the circuit of FIG. 4 described above, terminals 29a and 29b for connecting external wires, and the like are mounted. The terminals 29a and 29b mounted on the printed wiring board are connected to an external electric wire inserted into the container body 2 through an electric wire insertion hole (not shown) formed in the rear wall of the body 3 from a conductive leaf spring. It is comprised by the quick connection terminal (not shown) connected and hold | maintained by the spring force of the lock spring which becomes. A release button (not shown) for releasing the locked state of the electric wire by pressing the lock spring is also housed in the body 2, and the rear wall of the body 3 is for operating the release button. An operation hole (not shown) is formed in the vicinity of the electric wire insertion hole.

  On the front surface of the cover 4, a rotary knob 7 which is a setting operator of the setting operation switch 6 provided in the operation setting unit 25 is exposed through a window hole 4d opened in the cover 4, and an operation switch 5 including a tact switch. The push button 9 is exposed through a window hole (not shown) opened in the cover 4. Note that the rotary knob 7 and the push button 9 of the operation switch 5 are arranged side by side in the center of the front surface of the cover 4 in the horizontal direction. A name plate on which letters and numbers (for example, “continuous”, “5 minutes”...) Indicating the switching position of the rotary knob 7 are printed and pasted is attached to the peripheral portion of the window hole 4d exposing the rotary knob 7. You may attach by the method.

  The setting operation switch 6 is composed of a rotary switch having a plurality of switching positions, and the delay stop time is switched according to the rotational position of the rotary knob 7.

  A shaft portion 4e for pivotally attaching the operation handle 10 is provided at the left end portion of the front surface of the cover 4, and a bearing portion (not shown) provided at the left end portion of the rear surface of the handle body 11 is provided on this shaft portion. The operation handle 10 is pivotally attached to the body 2 by being pivotally supported. The bearing portion is provided with a biasing spring (not shown) for biasing the operation handle 10 in the counter-operation direction, and the operation handle 10 is biased counterclockwise. As a result, when a pressing force is applied to the right side portion of the operation handle 10, the operation handle 10 rotates about the shaft portion 4e as a fulcrum, and a push protrusion (not shown) provided on the rear surface of the operation handle 10 When the push button 9 is pressed, the operation switch 5 is turned on. On the other hand, when the force to push the right side of the operation handle 10 is lost, the operation handle 10 receives the reaction force of the biasing spring or the push button 9 of the operation switch 5 and returns to the return position, and the operation switch 5 is turned off.

  The operation handle 10 has a handle body 11 formed in a rectangular plate shape with a synthetic resin, a cover portion 12 attached to the front left side of the handle body 11, and a rectangular plate shape made of a synthetic resin, which can be opened and closed on the front surface of the handle body 11. It is comprised by the handle | steering-wheel cover 13 attached to.

  The handle body 11 is formed such that the left-right dimension is substantially the same as the left-right (short direction) dimension of the window hole 42a of the decorative plate 42, and the vertical dimension is the vertical dimension (longitudinal) dimension of the window hole 42a. The size is approximately two-thirds. The handle main body 11 is provided with an operation hole 11a through which the rotary knob 7 is exposed.

  Further, a handle cover 13 is attached to the handle body 11 so as to open and close the operation hole 11a where the rotary knob 7 is exposed. The handle cover 13 is formed so that the horizontal and vertical dimensions are substantially the same as the horizontal and vertical dimensions of the handle body 11, respectively. A pair of arms 13a and 13a projecting from the upper and lower ends of the left side portion of the handle cover 13 are provided so as to project sideways, and provided on the upper and lower surfaces of the handle body 11 at the tip of each arm 13a. A shaft 13b pivotally supported by the shaft hole 11b is provided. By pivotally supporting the shaft 13b of each arm 13a in the shaft hole 11b of the handle body 11, the handle cover 13 can freely select the state in which the operation hole 11a is exposed and the state in which the operation hole 11a is covered. It is attached to.

  The handle cover 13 is held in a closed state by adsorbing the iron piece 14 held on the right side of the front surface of the handle body 11 by the magnetic force of the permanent magnet 15 attached to the back surface of the handle cover 13. The handle body 11 and the handle cover 13 constitute an operation handle 10.

  Here, when the handle cover 13 is opened, the rotary knob 7 is exposed through the operation hole 11a of the operation handle 11, so that the operation time of the ventilation fan 32 can be set. Further, when the handle cover 13 is closed, it is possible to prevent the rotary knob 7 from being covered by the handle cover 13 and inadvertently operating the rotary knob 7 and to operate the operation switch 5. 32 can be in the operating state.

  Further, the setting operation switch 6 is integrated with the rotary knob 7, and the rotary knob 7 is pushed inwardly toward the inner side of the body 2 and released, whereby the rotary knob 7 is retracted toward the inner side of the body 2, and stored. It has a switching mechanism that can be switched alternately between the protruding state protruding forward than the state (see FIG. 1B).

  The switching mechanism is configured by a well-known technique, and when the rotary knob 7 is retracted in the inner direction of the container body 2, the rear face of the handle cover 13 and the rotary knob 7 do not come into contact with each other when the handle cover 13 is closed. It is set to be. Moreover, in the protruding state, it protrudes further forward than in the housed state, and the allowance from the front surface of the container body 2 is large, so that the rotary knob 7 can be easily operated.

  In this way, the operability of the setting operation can be improved during the setting operation for setting the operation of the ventilation fan 32 and the protrusion of the rotary knob 7 regardless of the thickness of the operation handle 11, and in the stored state. By closing the handle cover 13, the operation switch 5 can be operated with high operability while ensuring a large operation area with two modules.

  In the present embodiment, a rotary switch is used as the setting operation switch 6. However, any operation element that can perform settings related to the timer operation may be used, and a rotary type variable resistor or a slide type variable resistor may be used. There may be.

  Further, in this embodiment, a ventilation fan switch that operates the ventilation fan for a certain period of time according to the setting operation is used. For example, in the ventilation fan switch having a function of displaying the replacement time of the ventilation fan filter, the filter is changed according to the setting operation. It may be a ventilation fan switch that sets the replacement time.

(Embodiment 2)
FIG. 5 is a front view showing a main part of the ventilation fan switch according to the second embodiment.

  In the first embodiment, the push button 9 of the operation switch 5 is exposed on the front surface of the instrument body, and the push button 9 is pressed directly on the rear surface of the operation handle 10, but in the present embodiment, the operation switch 5 is housed inside the instrument body 2. In addition, a hinge portion 8 is provided at a portion facing the push button 9. The hinge portion 8 is formed in a T shape by forming a slit in the periphery, and when the operation portion 8a of the wide portion serving as a free end is pushed, the hinge portion 8 bends in the inner direction of the body 2, and the hinge portion 8 The push button 9 is pressed on the back surface of the. Except for this point, the configuration is the same as that of the first embodiment, and therefore, common components are denoted by the same reference numerals and description thereof is omitted.

  In the first embodiment, since the push button 9 of the operation switch 5 is disposed at the substantially center in the vertical direction of the operation handle 10, when the upper end or the lower end of the operation handle is pressed, the operation handle 10 covers the cover 4. There is a possibility that the push button 9 of the operation switch 5 cannot be reliably pushed by being inclined with respect to the container body 2 with the shaft portion 4e at the left end of the operation switch 5 as a fulcrum.

  In the ventilation fan switch of the present embodiment, a hinge portion 8 having an operation portion 8a extending in the vertical direction of the body 2 is provided at a portion facing the push button 9, and the upper end or lower end of the operation handle 10 is pushed. Even in this case, since the vertical dimension of the operation portion 8a is larger than that of the push button 9 by the protrusion provided on the back surface of the operation handle 10, the operation portion 8a can be surely pressed. When the operation portion 8a is pushed, the hinge portion 8 bends in the left-right direction of the body 2 toward the inside of the body 2, so that the push button 9 can be pushed, and the operation switch 5 is securely turned on. Can be made.

  In this way, it is possible to provide a ventilation fan switch that further improves the operability in the on / off operation of the ventilation fan and the setting operation of the ventilation fan operation.

(Embodiment 3)
FIG. 6 is a perspective view of the ventilation fan switch according to the third embodiment. FIG. 7 is a cross-sectional view showing a main part of the ventilation fan switch.

  As shown in FIG. 6, when the handle cover 13 is closed on the back surface of the handle cover 13 of the operation handle 10 and facing the setting operation switch 6 provided on the surface of the container body 2, the setting operation switch 6 It has the projection part 13a provided so that may be pushed. Except for this point, the configuration is the same as that of the first embodiment, and therefore, common components are denoted by the same reference numerals and description thereof is omitted.

  In the present embodiment, after the handle cover 13 is opened, the rear surface of the handle cover 13 is closed when the handle cover 13 is closed when the rotary knob 7 is in a protruding state protruding from the front surface of the container 2 as compared with the housed state. The rotary knob 7 is pushed down by the protrusion 13a provided on the rotary knob 7 so that the rotary knob 7 is retracted toward the inner side of the body, and the handle cover 13 can be closed.

  In this way, after the rotary knob 7 is in the protruding state and the delay stop time setting operation is performed, the rotary knob 7 can be stored and operated only by closing the handle cover 13 without operating the rotary knob directly. Since the handle 10 can be formed, a ventilation fan switch with high operability can be provided.

(A) is a perspective view which shows the ventilation fan switch concerning Embodiment 1 of this invention, (b) is a schematic sectional drawing which shows the principal part of the ventilation fan switch. It is a perspective view which shows the state which performs operation | movement setting of the ventilation fan switch. It is a disassembled perspective view of the ventilation fan switch. It is a schematic circuit diagram which shows the internal circuit of the ventilation fan switch. It is a front view which shows the principal part of the ventilation fan switch concerning Embodiment 2 of this invention. It is a perspective view of the ventilation fan switch concerning Embodiment 3 of this invention. It is a schematic sectional drawing which shows the principal part of the ventilation fan switch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exhaust fan switch 2 Body 3 Body 4 Cover 5 Operation switch 6 Setting operation switch 7 Rotation knob 10 Operation handle 11 Handle body 11a Operation hole 13 Handle cover 21 Control circuit (opening / closing control means)
22 Open / close element 23 Open / close drive unit (open / close control means)
25 Operation setting section (setting means)

Claims (2)

  A device having a mechanical operation switch on the front surface, and an operation handle attached to the device so as to cover the front surface of the device and pushing the operation switch on the back surface when the front surface is pressed. The body has an open / close element that turns on and off the power supply to the ventilation fan, an open / close control means that opens and closes the open / close element in response to the operation of the operation switch, and a setting operator exposed at a position different from the operation switch on the front of the body A setting operation switch installed so as to perform and a setting means for setting the operation of the open / close control means in accordance with the setting operation of the setting operator, and the operation handle allows the setting operator to be operated from the outside. And a handle cover that is held by the handle body on the front side of the handle body so that the operation hole can be opened and closed. It is characterized by having a mechanism for alternately switching between a retracted state in which the setting operation element is retracted inward of the container and a protruding state in which the setting operation element protrudes forward compared to the stored state each time A ventilation fan switch.   The ventilating fan switch according to claim 1, wherein a projection for pressing the setting operation element is provided on a portion of the rear surface of the handle cover that faces the setting operation element when the handle cover is closed.

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