JP2006222002A - Rotational electronic part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide nearly ring-like rotational electronic parts used for operation parts etc. of various electronic apparatuses etc., wherein other components can be arranged in a position in a ring, and which can be automatically mounted by adsorption. <P>SOLUTION: A flat surface 12 connected with a central part 12B through jointing parts 12A is integrally arranged in an inner cylindrical part 11B of a ring-like case 11. The upper surface of the central part 12B can be adsorbed, and other components arranged in a hollow part 11A through a hole part 12C composed of the jointing parts 12A can be operated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a rotary electronic component used in an operation unit or the like of various electronic devices.

  In recent years, a rotary electronic component whose outer shape is formed in an annular shape is mounted on a wiring board of a device, and another electronic component (such as an LED or a switch) is mounted at a position on the wiring board in the hollow portion of the electronic component. In many cases, the operation unit is concentrated.

  An example of a rotary encoder for such a rotary electronic component will be described below with reference to the drawings.

  FIG. 7 is a sectional view of a conventional rotary encoder, and FIG. 8 is a perspective view of the same.

  In the figure, reference numeral 1 denotes an insulating resin case whose outer shape is configured in a substantially annular shape, and an inner cylindrical portion 1B surrounding the periphery of the hollow portion 1A configured in the annular shape is formed to protrude upward. Yes.

  The annular portion of the case 1 has a concave shape with an upper opening, and a fixed contact plate 2 formed in a predetermined contact pattern made of a thin metal plate is fixed to the bottom by insert molding. Terminals 5 from the fixed contact plate 2 are respectively led out of the case 1.

  Reference numeral 6 denotes an operation body made of insulating resin formed in a substantially annular shape having a flange portion 6B at the lower end of the outer cylindrical portion 6A. The operation body 6 is rotatable relative to the case 1. As described above, the inner cylindrical portion 1B of the case 1 is concentrically inserted into the outer cylindrical portion 6A, and the flange portion 6B is accommodated in the annular recess of the case 1 in this state. Further, a brush 7 slidably contacting the fixed contact plate 2 is fixed to the lower surface of the flange portion 6B of the operation body 6.

  Reference numeral 8 denotes a cover made of a metal plate formed in a substantially annular shape in accordance with the shape of the case 1, and is placed on the case 1 so as to cover the upper opening portion in the concave portion of the case 1 with the flat plate portion 8A. The caulking leg portion 8B is coupled to the case 1 by holding the caulking leg portion 8B on the lower surface side of the case 1 and caulking. The upper portion of the flange portion 6B of the operating body 6 accommodated in the recess of the case 1 is restricted by the flat plate portion 8A.

  In the conventional rotary encoder configured as described above, when the outer cylindrical portion 6A of the operating body 6 is rotated, the operating body 6 rotates and moves relative to the inner cylindrical portion 1B of the case 1 and rotates. The brush 7 on the lower surface of the flange portion 6 </ b> B slides elastically on the fixed contact plate 2 with the movement, and an output corresponding to the operation position is obtained via the terminal 5.

  As the mounting state, the rotary encoder is mounted on the wiring board of the electronic device to be used, and other components such as LEDs are mounted on the wiring board in the hollow portion 1A. It was often a thing.

As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
Japanese Patent Laid-Open No. 11-176287

  Since the conventional rotary encoder (rotary electronic component) has a different shape having the hollow portion 1A at a substantially central position, it has been difficult to automate mounting, in particular by suction and automatic mounting.

  The present invention solves such a conventional problem, and an object of the present invention is to provide a rotary electronic component in which other components can be arranged at positions in the ring and can be automatically mounted by suction. .

  In order to achieve the above object, the present invention has the following configuration.

  The invention according to claim 1 of the present invention is a substantially annular rotary electronic component having a hollow portion, and the rotary electronic component having a sucked portion used for automatic mounting in the hollow portion. In addition, other components can be arranged at a position in the hollow portion, and a rotary electronic component that can be automatically mounted by sucking the portion to be sucked can be obtained.

  According to a second aspect of the present invention, in the first aspect of the invention, the first casing made of an insulating resin having the first cylindrical portion and the second cylindrical portion concentrically located outside the first cylindrical portion. And a second housing made of insulating resin having a structure in which the cylindrical portions are engaged with each other so as to be relatively rotatable, and the hollow portion formed by the space in the first cylindrical portion has the first A flat surface part integrally formed with one housing is provided, and the flat surface part serves as a sucked part, so that an object that can be automatically mounted by suction can be configured without an increase in the number of parts or assembly man-hours. Have.

  According to a third aspect of the present invention, in the second aspect of the invention, a hole is provided at a predetermined position of the flat surface portion in accordance with the arrangement position of other components arranged in the hollow portion. It is possible to operate other parts arranged at a position in the hollow part through the part, and the hole part can also act as a stealer and reduce the occurrence of unnecessary sink marks and warping of the flat surface part etc. Has an effect.

  According to a fourth aspect of the present invention, in the first aspect of the invention, the first casing made of an insulating resin having the first cylindrical portion and the second cylindrical portion concentrically located outside the first cylindrical portion. The second housing made of insulating resin is engaged with each other so as to be rotatable relative to each other, and a hollow portion is formed in the space in the first cylinder, It is composed of a detachable lid part coupled to the first cylinder part or the second cylinder part, and has an effect that it can be easily constructed without greatly changing the shape of the housing.

  As described above, according to the present invention, since the sucked portion used at the time of automatic mounting is provided in the hollow portion configured inside the substantially annular shape, other parts can be arranged at positions in the annular shape. In addition, an advantageous effect is obtained that a rotary electronic component that can be automatically mounted by suction is obtained.

  In the following, an embodiment of the present invention will be described using a rotary encoder as an example, as in the prior art. In addition, the same code | symbol is attached | subjected to the part of the same structure as the past, and detailed description is abbreviate | omitted.

(Embodiment)
FIG. 1 is a sectional view of a rotary encoder that is a rotary electronic component according to an embodiment of the present invention, FIG. 2 is an external perspective view thereof, and FIG. 3 is a top view thereof.

  In the same figure, 11 is a case made of insulating resin, and as its shape, the outer peripheral part is formed in a substantially annular shape, and the inner cylindrical part 11B surrounding the periphery of the hollow part 11A configured in the ring is as follows. A flat surface portion 12 is integrally formed at an upper position in the inner cylindrical portion 11B while projecting upward. The case 11 corresponds to the first casing in the claims, and the inner cylindrical portion 11B also corresponds to the first cylindrical portion in the claims.

  As can be seen from FIGS. 2 and 3, the flat surface portion 12 includes four connecting portions 12A protruding inward from the inner peripheral surface of the upper end of the inner cylindrical portion 11B, and a central portion connected to the connecting portion 12A. 12B and the area | region between 12 A of adjacent connection parts is each formed as the hole part 12C.

  The upper surface of the central portion 12B of the flat surface portion 12 serves as a sucked portion at the time of mounting, and the placement height, position, placement area, etc. in the hollow portion 11A are the suction head 31 used (in FIGS. 1 and 3). This is set according to an arrangement position of other components arranged in the hollow portion 11A.

  The substantially annular outer peripheral portion of the case 11 is configured as a concave portion having an upper opening, and a fixed contact plate 2 formed in a predetermined contact pattern is fixed to the bottom portion of the concave portion by insert molding. Terminals 5 from the fixed contact plate 2 are respectively led out of the case 11.

  The operating body 6 (corresponding to the second casing in the claims) in which the brush 7 that elastically slides on the fixed contact plate 2 is fixed to the lower surface of the flange portion 6B is the outer cylindrical portion 6A (invoice) as in the prior art. The inner cylindrical portion 11B of the case 11 is concentrically inserted into the second cylindrical portion in the section) and is combined so as to be relatively rotatable. The flange portion 6B is accommodated in the recess of the case 11, and the upper opening portion of the recess is a flat plate portion 8A of the cover 8 coupled to the case 11 by the crimping leg portion 8B being crimped on the lower surface side of the case 11. Covered with.

  As described above, the rotary encoder (rotary electronic component) according to the present invention is configured.

  Then, when the outer cylindrical portion 6A of the operating body 6 is rotationally operated, the operating body 6 rotates relative to the inner cylindrical portion 11B of the case 11, and the lower surface of the flange portion 6B is moved along with the rotational movement. The brush 7 is elastically slid on the fixed contact plate 2, and an output corresponding to the operation position is obtained via the terminal 5.

  As described above, since the rotary encoder can suck the upper surface of the central portion 12B of the flat surface portion 12 by the suction head 31 and automatically mount it on the wiring board of the device used, the number of assembly steps of the device can be reduced. Can be achieved. In addition, since the center part 12B in the flat surface part 12 is arrange | positioned in the position in the hollow part 11A, it is stable also as the adsorption | suction state, and this contributes also to simplification of management by the side of an apparatus.

  Next, an example in which the rotary encoder (rotary electronic component) is used for a temperature adjustment unit of an air conditioner will be described with reference to the drawings.

  As shown in FIG. 4, this configuration is configured by mounting the rotary encoder described above on a wiring board 41 of a device and combining a dedicated operation knob 61. As shown in the top view of FIG. 5, the operation knob 61 is configured such that the upper region in the central portion of the upper surface is a substantially semicircular temperature visual recognition unit 62 and includes a push button unit 63 in the lower region. A ring movable portion 64 that can be rotated independently of the both is provided on the outer peripheral portion of the circular region portion constituted by the temperature visual recognition portion 62 and the push button portion 63. As shown in FIG. 4, the ring movable portion 64 is coupled to the outer cylindrical portion 6A of the operating body 6 in the rotary encoder so as to be able to rotate together.

  The temperature visual recognition unit 62 is provided with a temperature bar display 62A and the like. An indicator portion 64A for visually recognizing the operation position on the temperature bar display 62A is disposed on the ring movable portion 64.

  On the other hand, the push button portion 63 includes a translucent window portion 63A made of translucent resin and has a pressing portion 63B extending downward from the lower surface thereof. The translucent window portion 63A and the pressing portion 63B are vertically moved to the LED 71 and the push switch 72 disposed at positions on the wiring board 41 in the hollow portion 11A through the hole portion 12C provided in the flat surface portion 12, respectively. They are arranged so that they face each other. In FIG. 4, illustration of the terminals of the push switch 72 is omitted.

  If it is the said structure, it will illuminate the translucent window part 63A with LED71 distribute | arranged to the position in the said hollow part 11A through the hole part 12C provided in the flat surface part 12, and will push down to the push button part 63 An operation to the push switch 72 disposed at a position in the hollow portion 11A can be performed by the pressing portion 63B that moves downward by the operation.

  The hole 12C can be used as described above, and also acts as a steal when forming the case 11 in the rotary encoder. Therefore, unnecessary sink marks and warpage of the flat surface portion 12 and the like are also generated. The case 11 can be obtained with high accuracy and high quality. Further, the configuration of the rotary encoder described above is preferable because the number of parts is the same as that of the conventional one, and the number of assembling steps is not increased.

  And this invention is not restricted only to the thing of the said structure, For example, as shown in FIG. 6, the removable cover part 81 is mounted | worn with respect to a conventional thing, and the mounting to the wiring board by adsorption | suction is carried out. What removes the cover part 81 later is also included. This can be easily configured with almost no change in shape and the like from the conventional one. In addition, if it is the structure which latches the cover part 81 to the inner side cylindrical part 11B and the outer side cylindrical part 6A, it is preferable, without the product external shape becoming unnecessarily large.

  Note that not only the rotary encoder described above but also all rotary electronic components having a hollow portion such as a rotary variable resistor and a rotary switch, those having a sucked portion in the hollow portion are not limited to this. It falls into the category of the invention.

  Since the rotary electronic component according to the present invention has a structure to be attracted to be used at the time of automatic mounting in a hollow portion corresponding to the inner portion of the annular shape, other components can be arranged at positions in the annular shape and automatic by suction. This has the effect of being able to be mounted, and is useful when configuring the operation unit of various electronic devices.

Sectional drawing of the rotary encoder which is a rotary electronic component by one embodiment of this invention Same perspective view Top view Sectional view showing a use case of the same rotary encoder Top view of the control knob attached to the same rotary encoder External perspective view showing a modified example of the invention Cross section of a conventional rotary encoder Same perspective view

Explanation of symbols

2 fixed contact plate 5 terminal 6 operation body 6A outer cylindrical portion 6B flange portion 7 brush 8 cover 8A flat plate portion 8B caulking leg portion 11 case 11A hollow portion 11B inner cylindrical portion 12 flat surface portion 12A connecting portion 12B central portion 12C hole portion 31 adsorption Head 41 Wiring board 61 Operation knob 62 Temperature visual recognition part 62A Temperature bar display 63 Push button part 63A Translucent window part 63B Press part 64 Ring movable part 64A Indicator part 71 LED
72 Push switch 81 Lid

Claims (4)

A substantially annular rotary electronic component having a hollow part, wherein the hollow part is provided with an attracted part used for automatic mounting. A first housing made of insulating resin having a first cylindrical portion and a second housing made of insulating resin having a second cylindrical portion located concentrically outside the first cylindrical portion are mutually connected to each other. And a flat surface portion integrally formed with the first housing is provided in a hollow portion formed by a space in the first cylindrical portion, and the flat surface portion The rotary electronic component according to claim 1, wherein the rotating electronic component is an attracted portion. The rotary electronic component according to claim 2, wherein a hole is provided at a predetermined position of the flat surface portion according to an arrangement position of other components arranged in the hollow portion. A first housing made of insulating resin having a first cylindrical portion and a second housing made of insulating resin having a second cylindrical portion located concentrically outside the first cylindrical portion are mutually connected to each other. The hollow portion is formed in the space in the first cylindrical portion, and the attracted portion is detachably coupled to the first cylindrical portion or the second cylindrical portion. The rotary electronic component according to claim 1, comprising a lid.

Images