JP3514150B2 - Enclosure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing, and more particularly to a housing for protecting a light source and converting light emitted from the light source into an intensity suitable for a user and obtaining good visibility. Regarding

[0002]

2. Description of the Related Art FIG. 4 is a front view for explaining an LED cover portion of an electronic equipment housing as an example of a conventional housing, and FIG. 5 is a sectional view taken along line BB shown in FIG. FIG. As a housing of an electronic device, inside a panel 401, which is an injection molded part of a synthetic resin, for example, a light source for displaying an operating state such as power ON and OFF, for example, an LED 402 is provided as a part of an electric circuit of the electronic device. It is contained. In addition, the LED 402 of the panel 401
A through hole is formed in a portion facing away from the LED. The through hole has an opening portion for protecting the LED 402, reducing the brightness of the LED 402 and diffusing light, or in designing an electronic device. As a transparent or translucent part, for example, a synthetic resin injection molded part L
The ED cover 403 is attached. Further, the LE
The D cover 403 is attached to the panel 401 and the welding point 401b.
It is welded and fixed in.

Next, as an example of a conventional case, a transmission process of the light L of the LED 402 for displaying the operation state of the electronic device will be described with reference to FIG. The LED 402 emits light when the electronic device is in the power-on state, for example, and the light L from the LED 402 is transmitted to the inner wall surface of the panel 401. The light L transmitted to the inner wall surface of the panel 401 is transmitted through the LED cover 403 and the panel 40.
1 is transmitted to the outer wall surface side, and the user of the electronic device
By visually observing the light L transmitted through the ED cover 403, for example, the power-on state can be known as the operation state of the electronic device. Thus, as an example of a conventional housing,
The panel 401 of the electronic device protects the light source LED 402 for displaying an operating state and the like by the LED cover 403 welded to the panel 401, and moderates the light intensity when transmitting the light L from the LED 402. It prevented the user's eyes from being stimulated.

[0004]

However, the conventional housing has the following problems. That is,
The conventional housing, for example, the panel 401 of the electronic device and the LED cover 403 are parts made of different materials, and the part cost of the LED cover 403 and the number of man-hours required for welding at the welding point 401b are generated. Further, welding of parts made of different materials requires man-hours for separating and recovering the electronic device when it is recycled in the future, and therefore improvement has been desired in evaluating the product assessment of the electronic device.

Therefore, an object of the present invention is to protect a light source and to change the light emitted from the light source to an intensity suitable for a user, and to use a panel such as a conventional case using a light source cover. Is to provide a housing in which it is not necessary to weld transparent or translucent light source covers made of different materials to facilitate the manufacturing and separation / collection work, and further to reduce the manufacturing cost of the mold.

[0006]

A housing according to the present invention is a housing provided with a panel facing away from a light source for irradiating light along an optical axis, the panel irradiating from the light source. A direct light blocking wall for blocking direct light composed of a light beam having a predetermined diameter centered on the optical axis, and the direct light blocking wall is provided around the direct light blocking wall in a direction oblique to the optical axis, A through hole for converting at least a part of the direct light other than the light flux emitted from the outside into indirect light and leading it to the outside. Further, the through hole has a trapezoidal opening in the inner wall surface of the panel that surrounds the direct light shielding wall, communicates with the same cross-sectional shape as the opening shape, and is located closer to the optical axis than the inner wall surface of the panel. It is characterized by opening to the outer wall surface of the panel. Further, the through-hole is a surface perpendicular to the panel and can be divided by a mold joining surface extending from an outer wall surface opening portion of the panel to an inner wall surface opening portion, and is joined at the mold joining surface. It is characterized by being molded by a pair of molds. By such means, the portion facing the light source is directly covered with the light shielding wall to protect it, and the light emitted from the light source is provided around the direct light shielding wall in a direction oblique to the optical axis. Eliminating the inconvenience of stimulating the user's eyes by converting to indirect light through the through hole and deriving,
Further, unlike a conventional case using a light source cover, it is not necessary to weld a transparent or translucent part made of a material different from that of the panel to the opening to facilitate the manufacturing and reduce the work load at the time of separation and collection. Further, the housing has been realized by reducing the cost and further suppressing the increase of the manufacturing cost of the mold for molding the through hole.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a case according to an embodiment of the present invention will be described with reference to the drawings, taking as an example a case where the case is applied to an electronic apparatus case. FIG. 1 is a front view for explaining an LED cover portion of an electronic device housing in a housing according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA shown in FIG. FIG. The housing according to the present embodiment is manufactured by injection molding of synthetic resin, for example, and is applied to a housing of an electronic device. For example, power is turned on and off as a part of an electric circuit of the electronic device.
It is a case including a panel 101 facing away from an LED 102 as an example of a light source that emits light along an optical axis that displays an operating state such as. This panel 101
The LED 102 is physically isolated and protected, and the LE
In order to eliminate the inconvenience that the light from D102 directly enters the eyes of the user to give a stimulus, the light source LED102
A light blocking wall 101b as an example of a direct light blocking wall that blocks direct light composed of a light beam of a predetermined diameter centered on the optical axis, and the optical axis is oblique to four locations around the light blocking wall 101b. The light source LED 102 is provided in the intersecting direction.
A through hole 101a for converting at least a part of the direct light other than the light beam emitted from the panel into indirect light and leading the light to the outer wall surface side of the panel 101.

Further, the through hole 101a is trapezoidally opened to the panel 101b surrounding the direct light shielding wall 101b, and communicates with the same sectional shape as the opening shape, Also has an opening on the outer wall surface of the panel 101 at a position close to the optical axis.

FIG. 3 is a partial cross-sectional view for explaining the mold structure used for manufacturing the panel 101 of the electronic device for the housing according to the embodiment of the present invention. As an example of the housing, the panel 101 of the electronic equipment housing is manufactured by injection molding of synthetic resin, for example. The through-hole 101a formed in the panel 101 is formed by a pair of molds whose surfaces, which extend from the outer wall surface opening portion of the panel 101 to the inner wall surface opening portion and are perpendicular to the panel 101, are used as mold bonding surfaces. To be done. That is, the vertical surface is referred to as the cavity Ca of the mold.
Of the through-hole 101a molding portion Ca ′ and the through-hole 101a molding portion Co ′ of the core Co of the mold are joined to each other by a die, and the through-hole 101a is joined at the die joining surface. Thus, the panel 101 is configured such that the cavity Ca of the mold and the core Co of the mold are molded at the time of molding.
With respect to the panel 101, relative linear motion in a direction perpendicular to the panel 101 (the direction of the arrow in the drawing) causes the structure to be removed from the mold.

Next, with respect to the housing according to the embodiment of the present invention, the process of transmitting the light L of the LED 102 for displaying the operating state of the electronic device will be described with reference to FIG. Light source LED
102 is an operating state of the electronic device, for example, power ON
Light is emitted in the state, and the light L from the LED 102 is applied to, for example, an inner wall surface as one main surface of the panel 101 facing the LED 102 with a space therebetween. Panel 1
A part of the light L radiated to the inner wall surface of 01 is LE
A penetrating hole is formed at four positions in a direction oblique to the optical axis, which surrounds a light shielding wall 101b that shields direct light composed of a light beam of a predetermined diameter centered on the optical axis of the panel 101 facing away from D102. It is incident on the hole 101a.

The through hole 101a is formed in the light shielding wall 101.
The LED has a trapezoidal opening in the inner wall surface of the panel 101 at four locations surrounding b, and communicates with the same cross-sectional shape as the opening shape, rather than the panel inner wall surface 101.
Since the light is incident on the outer wall surface of the panel 101 at a position close to the optical axis of 102, the light L incident on the through hole 101a is
Is mainly reflected between two parallel surfaces, and the amount of light decreases each time it is reflected. Therefore, when the light is emitted from the through-hole 102, the light can have an intensity suitable for the user, and the upper side of the trapezoidal opening. The through-hole 101a is formed by forming the through-holes 101a at four positions surrounding the optical axis with the portion on the optical axis side.
The light reflected by the inner wall surface of a is condensed from four directions and the visibility is improved. Therefore, the visibility equal to or higher than that of the conventional case using the light source cover can be obtained. Therefore, the user of the electronic device can know, for example, the power-on state as the operation state of the electronic device by visually observing the light L reflected and passed through the inner wall surface of the through hole 101a.

As described above, according to the housing according to the embodiment of the present invention, the light L emitted from the LED 102 is the L of the panel 101 facing the LED 102 at a distance.
Since the ED 102 is covered with a light shielding wall 101b that shields direct light composed of a light beam having a predetermined diameter around the optical axis of the ED 102,
The LED 102 can be protected by being physically isolated from the space outside the panel 101. Further, unlike the conventional case using a light source cover, it is not necessary to weld a transparent or semi-transparent LED cover made of a material different from that of the panel, which facilitates the work at the time of manufacture and separation / collection. it can.

Further, a part of the light L emitted from the LED 102 is distributed to the four locations surrounding the light shielding wall 101b.
The light enters a through hole 101a that is opened in a trapezoidal shape and is formed in a direction oblique to the optical axis of the ED 102, and the through hole 101a is formed.
The light L incident on is mainly reflected between the two parallel surfaces, and the amount of light decreases each time it is reflected. Therefore, when the light L is emitted from the through-hole 101a, the light having an appropriate intensity for the user can be obtained. By arranging the through holes 101a at four locations surrounding the optical axis with the upper side of the trapezoidal opening as the optical axis side, the light reflected by the inner wall surface of the through hole 101a is collected from four directions. Since light is emitted and the visibility is improved, the visibility equal to or higher than that of the conventional case using the light source cover can be obtained.

Further, the through hole 101a has a surface perpendicular to the panel 101 extending from the outer wall surface opening portion to the inner wall surface opening portion of the panel 101, and the through hole 101a molding portion Ca 'of the cavity Ca of the mold and Since the structure is such that molding can be performed by a pair of molds which are the mold bonding surfaces of the through hole 101a molding portion Co ′ of the core Co of the mold, the panel 101 is
Cavity Ca of the mold and core C of the mold during molding
The structure can be removed from the mold by a relative linear motion in the direction perpendicular to the panel 101 with respect to o, and the manufacturing cost of the mold can be suppressed.

[0015]

As described above, according to the housing of the present invention, the portion facing the light source is directly covered with the light shielding wall, so that the light source is physically isolated from the space outside the panel and protected. In addition, unlike the conventional case using a light source cover, it is not necessary to weld a transparent or translucent component whose material is different from that of the panel to the opening, and therefore, the manufacturing is very easy and at the same time. In addition, the work load during separation and collection can be reduced, and part of the light emitted from the light source is guided to the outside through a through hole that is directly formed around the light shielding wall in a direction that intersects the optical axis obliquely. Therefore, the light from the light source can be visually recognized by indirect illumination that is gentle on the eyes, and the excellent effect of eliminating the inconvenience that the light from the light source directly enters the eyes of the user to give a stimulus is exerted. Further, the through hole,
A trapezoidal opening is formed in the inner wall surface of the panel that surrounds the direct light-shielding wall, and communicates with the same cross-sectional shape as the opening shape, and opens to the outer wall surface of the panel at a position closer to the optical axis than the inner wall surface of the panel. Therefore, the light incident on the through-hole is parallel to 2
It mainly reflects between the surfaces, and the amount of light decreases each time it is reflected,
When the light is emitted from the through-hole, the intensity of the light can be appropriate for the user, and by forming the through-holes at four locations surrounding the optical axis with the upper side of the trapezoidal opening as the optical axis side. ,
The light derived by reflecting on the inner wall surface of the through hole is condensed from four directions and the visibility is improved. Therefore, it is possible to obtain the visibility equal to or higher than that of the conventional housing using the light source cover. Play. Furthermore, the through-hole is a surface that is perpendicular to the panel, and can be divided by a mold bonding surface that extends from an outer wall surface opening portion of the panel to an inner wall surface opening portion, and the through hole is bonded at the mold bonding surface. Since the molding is performed by the pair of molds, the molded product comes out of the mold by the relative linear motion of the pair of molds, and the effect of reducing the manufacturing cost of the mold can be obtained.

[Brief description of drawings]

FIG. 1 is a front view for explaining an LED cover portion of an electronic device casing of a casing according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the housing according to the embodiment of the present invention, taken along the line AA shown in FIG.

FIG. 3 is a partial cross-sectional view for explaining a mold structure used for manufacturing a panel of an electronic device in a housing according to an embodiment of the present invention.

FIG. 4 shows an LE of an electronic device casing as an example of a conventional casing.
It is a front view for explaining a D cover part.

FIG. 5 shows an example of a conventional housing, which is B- shown in FIG.
It is sectional drawing when it cut | disconnects by the B line.

[Explanation of symbols]

101 panel 101a through hole 101b light shielding wall 102 LED L light Ca mold cavity Ca 'Mold cavity through-hole molding part Co mold core Co ′ Mold core through-hole molding part

Claims (3)

(57) [Claims] 1. A housing provided with a panel facing away from a light source that emits light along an optical axis, wherein the panel has a predetermined diameter centered on the optical axis emitted from the light source. Direct light shielding wall that shields the direct light composed of the light flux, and the direct light shielding wall surrounding the direct light shielding wall is formed in a direction oblique to the optical axis. A housing including: a through hole for converting at least a part of the light into indirect light and leading the light to the outside. 2. The through hole has a trapezoidal opening in a panel inner wall surface surrounding the direct light shielding wall, and communicates with the same cross-sectional shape as the opening shape, and the optical axis is larger than the panel inner wall surface. The housing according to claim 1, wherein the housing is opened to the outer wall surface of the panel at a position close to. 3. The through hole is a surface perpendicular to the panel, and is divisible by a mold bonding surface extending from an outer wall surface opening portion of the panel to an inner wall surface opening portion of the panel. The housing according to claim 1 or 2, wherein the housing is molded by a pair of dies that are joined together by.