JP2016127509A - Radio communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio communication device that makes it possible to downsize a case.SOLUTION: A first electronic component 201 among a plurality of electronic components, which has a first height dimension T1 or more is attached to a location not being overlapped with a protruded part. Thus, a minimum distance from a surface of a circuit board 200, which is configured to attach the electronic components thereto, to an inner surface of a case body 110 can be made smaller than a height dimension of a maximum component, thereby making it possible to downsize a case 100.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a wireless communication device used when collecting sales information of a vending machine in a remote management computer, for example.

  Conventionally, this type of wireless communication device includes a substantially box-shaped case, and a circuit board that is accommodated in the case and used for connection to a wireless communication network and a circuit board on which other electronic components are attached. Are known (for example, see Patent Document 1).

JP 2005-64988 A

  Various types of electronic components having different height dimensions, such as an integrated circuit, a microcomputer, and a coil, are attached to the circuit board of the wireless communication device. Each electronic component is arranged according to a circuit pattern wired on the circuit board. For this reason, the case of the wireless communication device is from the surface on which the electronic component of the circuit board is mounted to the inner surface of the case so that the electronic component having the largest height among the electronic components mounted on the circuit board can be accommodated. There is a problem that the minimum distance is determined and the outer dimension of the case becomes large.

  An object of the present invention is to provide a wireless communication apparatus capable of reducing the size of a case.

  In order to achieve the above object, the present invention provides a substantially box-shaped case, a circuit board housed in the case and used for connection to a wireless communication network and a plurality of other components attached thereto, A protruding portion that protrudes toward the internal space of the case is provided inside the case, and a component having a predetermined height dimension or more among a plurality of components mounted on the circuit board is provided on the protruding portion. It is installed in a position that does not overlap.

  As a result, a component having a large height is arranged in a space where the distance between the surface on which the circuit board component is mounted and the inner surface of the case is large, so that from the surface on which the circuit board component is mounted to the inner surface of the case The minimum distance can be made smaller than the maximum component height.

  According to the present invention, the minimum distance from the surface on which the circuit board component is mounted to the inner surface of the case can be made smaller than the height dimension of the maximum component, so the case can be downsized. It becomes possible.

It is the figure which looked at the radio | wireless communication apparatus which shows one Embodiment of this invention from the front. It is the figure which looked at the radio | wireless communication apparatus from the side. It is AA 'sectional drawing of FIG. It is BB 'sectional drawing of FIG.

  1 to 4 show an embodiment of the present invention.

  The wireless communication device 1 of the present invention is used in a vending machine sales management system, a gas and water usage management system, an automobile operation management system, etc., and manages information related to devices to be managed by wireless packet communication. For sending to a computer.

  As shown in FIGS. 3 and 4, the wireless communication device 1 includes a substantially box-shaped case 100 and a circuit board 200 accommodated in the case.

  As shown in FIGS. 3 and 4, the case 100 includes a case main body 110 having an open back side, and a back cover 120 that can open and close the back side opening of the case main body 110.

  The case main body 110 is a synthetic resin member, and is formed by injection molding. As shown in FIG. 1, the case main body 110 includes a front part 111 formed in a planar shape, an upper surface part 112 extending from the upper end of the front part 111 toward the back side, and a lower end of the front part 111 toward the back side. And a pair of side surface portions 114 extending from the left and right ends of the front portion 111 toward the back side.

  On the upper right side of the front portion 111 of the case main body 110, as shown in FIG. 3, an operation of a device in the case 100 (for example, a dip switch provided on the circuit board 200) is performed from outside the case 100. An operation hole 111a is provided. A lid member 111b made of an elastic member such as rubber is attached to the operation hole 111a. The operation hole 111a is opened by removing the lid member 111b.

  As shown in FIG. 1 and FIG. 4, a display label 115 (display member) used for displaying a precaution regarding handling of the wireless communication device 1 and an operation state is provided on the outer surface of the case main body 110 below the front portion 111. A label recess 111c for attaching is provided. The label recess 111c has substantially the same shape and size as the display label 115, and has a uniform depth dimension over the entire surface. The label recess 111 c has a depth dimension substantially the same as the thickness dimension of the display label 115 or a depth dimension slightly larger than the thickness dimension of the display label 115. The label concavity 111c is used as a reference for the attaching position of the display label 115 when the display label 115 is attached to the case main body 110.

  As shown in FIGS. 3 and 4, a label recess 111 c is formed on the inner surface of the case main body 110 below the front portion 111, so that the inside of the case main body 110 has substantially the same shape and size as the label recess 111 c. A label projecting portion 111d (first projecting portion) that projects toward the space is provided. As shown in FIG. 4, the label overhang portion 111d has a predetermined first overhang dimension H1 (for example, 1 to 3 mm). The label overhanging portion 111d is provided with a gate for allowing the synthetic resin material to flow into the mold cavity when the case main body 110 is molded by injection molding, and the portion where the gate is located is the gate overhanging portion. It protrudes toward the internal space of the case body 110 as 111e.

  Also, below the label recess 111c, as shown in FIG. 4, a plurality of light-transmitting holes for allowing LED light (described later) provided on the circuit board 200 to pass through the display label 115 to the outside. 111f are provided at intervals in the width direction. The light transmission hole 111f is formed in a substantially rectangular shape.

  As shown in FIGS. 3 and 4, a light guide 111g (second overhang) for reflecting the light of the LED and guiding it to the outside at the edge of the light transmission hole 111f on the inner surface of the case body 110 Is provided so as to project toward the internal space of the case main body 110. The light guide part 111g is formed in a rectangular tube shape so as to surround the light transmission hole 111f. As shown in FIG. 4, the light guide part 111g has a second overhang dimension H2 (for example, 5 to 10 mm) that is larger than the overhang dimension of the label overhang part 111d.

  As shown in FIG. 2, the upper surface portion 112 of the case main body 110 has a power supply terminal 112a, a LAN interface 112b and a serial interface 112c for connecting to a device to be managed, and an antenna terminal for connecting an antenna line. 112d.

  As shown in FIG. 1, the pair of side surface portions 114 of the case body 110 are provided so as to extend outward in the width direction from the rear side end portions, respectively, for attaching the wireless communication device 1 to a device to be managed. The flange 114a is provided. The flange 114a is provided with an insertion hole 114b through which a screw, a bolt, or the like can be inserted.

  The back cover 120 is made of a metal plate such as a hot dip galvanized steel plate. As shown in FIG. 3, the back cover 120 is provided with an engaging portion 121 that can be engaged with the case main body 110 at one end in the width direction, and is screwed together with the case main body 110 at the other end in the width direction. A fastening portion 122 is provided.

  In the present embodiment, the lid member 111b, the label projecting portion 111d, the gate projecting portion 111e, and the light guide portion 111g serve as an projecting portion that projects from the inner surface of the case body 110 toward the internal space of the case body 110.

  The circuit board 200 is a plate-like member in which a circuit is formed by a conductor such as copper foil. As shown in FIGS. 3 and 4, the circuit board 200 has a plurality of positioning protrusions 111 h provided inside the case body 110. It is fixed by a screw or the like in the contacted state.

  A plurality of types of electronic components having different height dimensions are attached to the front surface of the circuit board 200. In the electronic component, for example, the height dimension of the coil and the electrolytic capacitor is larger than the height dimension of the microcomputer and the integrated circuit. The plurality of types of electronic components include the first electronic component 201 having a height dimension equal to or greater than the first height dimension T1, and the first height dimension T1 having a height dimension equal to or greater than the second height dimension T2 (T2 <T1). It is classified into a small second electronic component 202 and a third electronic component 203 whose height dimension is smaller than the second height dimension. The first electronic component 201 is an electronic component such as a coil or an electrolytic capacitor. The second electronic component 202 is an electronic component such as a microcomputer and an integrated circuit. The third electronic component 203 is an LED (light emitting diode) as a light emitting member. Here, as shown in FIG. 4, the first height dimension T1 is a dimension between the front surface of the case main body 110 of the circuit board 200 and the gate overhanging portion 111e. The second height dimension T2 is a dimension between the front surface of the case body 110 of the circuit board 200 and the light guide portion 111g.

  As shown in FIG. 4, the first electronic component 201 is attached to a region A that is a position that does not overlap the overhanging portion on the front surface of the circuit board 200 attached to the case body 110. In addition, the second electronic component 202 is attached to a region B that is a position overlapping the label projecting portion 111d. Furthermore, the 3rd electronic component 203 is attached to the area | region C which is a position which overlaps with the light guide part 111g. The circuit board 200 is wired according to the arrangement of each electronic component.

  On the rear surface of the circuit board 200, a power communication terminal 210a, a LAN interface 112b, a serial interface 112c, and a data communication device 210 used for connection with a wireless packet communication network are attached.

  In the wireless communication device 1 configured as described above, the first height is set in the region A that is a position that does not overlap with the overhanging portion formed so that the distance from the front surface of the circuit board 200 to the inner surface of the case body 110 is large. A first electronic component 201 having a thickness T1 or more is disposed. Further, in the region B that is a position overlapping the label protruding portion 111d, the second electronic component 202 that is equal to or larger than the second height dimension T2 and smaller than the first height dimension T1 is disposed. For this reason, the minimum distance from the front side surface of the circuit board 200 to the inner surface of the case body 110 is smaller than the height dimension of the maximum electronic component.

  Thus, according to the wireless communication apparatus of the present embodiment, the first electronic component 201 having the first height dimension T1 or more among the plurality of electronic components is attached at a position that does not overlap the overhanging portion.

  As a result, the minimum distance from the surface of the circuit board 200 on which the electronic component is mounted to the inner surface of the case body 110 can be made smaller than the height of the maximum component, so that the case 100 can be reduced in size. It becomes possible.

  In addition, the second electronic component 202 attached to the region B that overlaps the label overhanging portion 111d is located in the region C that overlaps the light guide portion 111g having a larger overhanging dimension than the label overhanging portion 111d. The height dimension is larger than that of the third electronic component 203 to be attached.

  Accordingly, the second electronic component 202 having a large height compared to the third electronic component 203 is attached at a position overlapping the label protruding portion 111d having a small protruding size compared to the light guide portion 111g. Therefore, since the electronic components can be arranged by effectively using the internal space of the case body 110, the case 100 can be further reduced in size.

  The overhanging portion is a label overhanging portion 111d that protrudes inside the case main body 110 by forming a label recess 111c for attaching a display label 115 for displaying predetermined information on the outside of the case main body 110.

  Thereby, since an electronic component with a small height is attached to the region B that is a position overlapping with the label protruding portion 111d, the depth dimension of the label recess 111c can be formed large. The pasting work can be performed more efficiently.

  The overhanging portion is a light guide portion 111 g that guides the light of the LED 203 provided on the circuit board 200 to the outside of the case body 110.

  Thereby, since an electronic component with a small height is attached to the region C that is a position overlapping with the light guide 111g, the light guide 111g can be projected to the vicinity of the LED 203, so that the LED 203 can be more reliably provided. It becomes possible to guide the light to the light hole 111f.

  In the embodiment, the lid member 111b, the label projecting part 111d, the gate projecting part 111e, and the light guide part 111g provided on the front part 111 of the case body 110 facing the circuit board 200 are shown as the projecting parts. However, it is not limited to this. For example, an electronic component is placed on the circuit board by using a member that protrudes from the upper surface portion 112, the lower surface portion 113, and the side surface portion 114 of the case body 110 toward the circuit board 200 and the front surface portion 111 of the case body 110. You may arrange.

DESCRIPTION OF SYMBOLS 1 ... Wireless communication apparatus, 100 ... Case, 110 ... Case main body, 111c ... Label recessed part, 111d ... Label overhang | projection part, 111f ... Light transmission hole, 111g ... Light guide part, 200 ... Circuit board, 201 ... 1st electronic component 202 ... 2nd electronic component, 203 ... LED.

Claims (4)

A box-shaped case,
A data communication device housed in a case and used for connection to a wireless communication network and a circuit board on which a plurality of other components are attached,
On the inside of the case, there is a protruding part that protrudes toward the internal space of the case,
Of the plurality of components mounted on the circuit board, a component having a predetermined height dimension or more is attached at a position that does not overlap the overhanging portion. The case is provided with a first overhanging portion having a predetermined overhanging dimension and a second overhanging portion having an overhanging dimension larger than the overhanging dimension of the first overhanging part,
The wireless communication device according to claim 1, wherein the component attached to the position overlapping the first overhanging portion has a height dimension larger than that of the component attached to the position overlapping the second overhanging portion. . The first overhanging portion is a label overhanging portion that protrudes to the inside of the case by forming a recess for attaching a display member for displaying predetermined information on the outside of the case. The wireless communication device described. The wireless communication device according to claim 2 or 3, wherein the second overhanging portion is a light guide portion that guides light of a light emitting member provided on the circuit board to a light passage hole provided in the case.

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