JP3215996U - Sign - Google Patents

Abstract

An object of the present invention is to provide a signboard that can eliminate problems such as dropout and deformation due to aging of an external force and a support portion while maintaining an excellent appeal function of a linear light source. A sign 10 includes an LED light source 11 in which a plurality of LED chips are mounted in a row along the length direction to form a wire shape or a tape shape as a whole, and the LED light source emits the light from the sign surface. And a light source support member 12 to be supported. The light source support member includes a back surface member 13 that supports the LED light source and a surface member 14 that sandwiches the LED light source between the back surface member, and the LED light source does not protrude from the signboard surface. The back member is formed of a punching plate, and a large number of through holes 13a function as heat radiating holes from the LED light source. [Selection] Figure 1

Description

  The present invention relates to a signboard using an LED light source on which a plurality of light emitting diode (LED) chips are mounted.

  2. Description of the Related Art In recent years, a signboard of a wall-mounted type that is installed outdoors or indoors using a LED light source or a stand-alone type (stand type) that is movably installed at a storefront or the like has been widely used. A signboard using this type of LED light source includes a surface light emitter having an LED chip mounted on the entire display area, and is configured to transmit and illuminate characters and figures drawn on the signboard surface.

  If a surface light emitter in which a large number of LED chips are mounted in a matrix form is used as the light source, it is possible to increase the luminance and improve the uniformity over the entire signboard surface. Manufacturing costs are greatly increased.

  A tape-shaped LED light source that can efficiently illuminate a necessary site is also known. For example, Patent Document 1 proposes a light source device including a linear light source configured by attaching a plurality of LED chips to a tape-like flexible substrate.

  If a linear light source as described in Patent Document 1 is mounted on the signboard surface, characters and figures can be expressed by the light source itself, and the brightness of the letters and figures is higher than the background. The appeal effect can be expected.

JP 2016-39083 A

  However, when the linear light source is attached to the surface of the signboard, the attached linear light source protrudes from the signboard surface. . In addition, since the linear light source is attached to the surface of the signboard, it is easy to drop off from the signboard even when an external force is applied to a part of the linear light source. There was also a problem that it was easily peeled off and removed.

  Furthermore, the conventional linear light source of this type has insufficient measures for heat dissipation of the LED chip, and the heat emitted from the LED driver does not operate normally and the brightness becomes uneven. In addition, the LED chip has a problem of causing failure and shortening of the service life.

  The present invention was devised in view of such a situation, and an object thereof is to provide a signboard that can solve problems such as dropout and deformation while maintaining an excellent appeal function of a linear light source.

  Another object of the present invention is to provide a signboard that can improve the heat dissipation effect of the LED chip with a simple configuration.

  In order to achieve the above object, the signboard of the present invention includes a linear light source in which a plurality of LED chips are mounted along the length direction to form a wire shape or a tape shape as a whole, and light from the linear light source is emitted from the signboard surface. A light source support member that supports the linear light source so as to emit light, and the light source support member supports the linear light source without protruding from the signboard surface, and at least a part of the plurality of LED chips. An opening is provided at a position corresponding to the LED chip. Thus, since the linear light source is supported in a state where it does not protrude from the signboard surface, it is possible to prevent the linear light source from being dropped or damaged due to contact. Moreover, since it has the opening part in the position corresponding to at least some LED chips, the heat dissipation effect of the LED chip can be improved.

  The light source support member includes a back surface member arranged on the opposite side of the signboard surface side of the linear light source to support the linear light source, and a surface member arranged on the signboard surface side of the linear light source. A configuration having an opening is also preferable.

  A configuration in which the back member is a mesh plate or a punching plate having a large number of through holes is also preferable.

  A configuration in which a concave groove for accommodating the linear light source in an embedded state is formed on the signboard surface side of the light source support member, and an opening is provided on the bottom surface of the concave groove in the thickness direction of the light source support member is also preferable.

  The linear light source preferably has a configuration in which a plurality of LED chips are mounted in a line along the length direction.

  The linear light source preferably has a configuration in which a plurality of LED chips are mounted in a plurality of rows along the length direction.

  The linear light source preferably has a configuration in which a plurality of LED chips are mounted in a plurality of matrices along the length direction.

  The light source support member has the same shape as the character or figure displayed on the signboard, and a plurality of linear light sources are arranged in parallel with each other along the line representing the character or figure of the light source support member. It is also preferable that the LED chip in the linear light source arranged on the outermost side among the plurality of linear light sources arranged is installed with its optical axis tilted outward as described above.

  A configuration in which at least one member having the same shape as the light source support member is provided on the opposite side of the light source support member from the signboard surface with a spacer interposed therebetween is also preferable.

  A linear light source is a wire-shaped or tape-shaped substrate, a plurality of LED chips mounted on the substrate at predetermined intervals along the length direction, and a wiring electrically connected to the plurality of LED chips. The structure provided with the material and the translucent coating | covering material which covers a base material, a some LED chip, and a wiring material is also preferable.

  ADVANTAGE OF THE INVENTION According to this invention, the signboard which can eliminate problems, such as dropout and a deformation | transformation, can be provided, maintaining the outstanding appeal function of a linear light source.

  Moreover, since the heat dissipation effect can be improved with a simple configuration, the service life of the LED chip can be extended, and the maintenance cost can be reduced.

It is a disassembled perspective view which shows roughly the structure of the signboard in the 1st Embodiment of this invention. It is a general | schematic sectional view in the AA line in the signboard of FIG. It is a figure which shows the wire-shaped LED light source in the signboard of FIG. 1, (a) is a perspective view of an external appearance, (b) is a general | schematic longitudinal cross-sectional view in the BB line of (a). In the signboard of FIG. 1, it is an exploded perspective view of the example in which the surface member is formed with the punching board. It is a figure which shows the difference in the brightness | luminance by the difference in the distance from an LED chip to a surface member in case the surface member is formed with the punching board. It is a perspective view which shows roughly the structure of the signboard in the 2nd Embodiment of this invention. It is a general | schematic cross section in the CC line in the signboard of FIG. It is a figure which shows the signboard in 3rd Embodiment of this invention, (a) is a perspective view, (b) is a perspective view which shows only a light source support member. It is a schematic sectional drawing in the DD line of Fig.8 (a). It is a perspective view which shows roughly the structure of the stand-type signboard in 4th Embodiment of this invention. It is a general | schematic horizontal sectional view which shows the structure of the signboard of FIG. It is sectional drawing which shows roughly the electrical structure of an example of the tape-shaped LED light source in the signboard of FIG. It is sectional drawing which shows roughly the electrical structure of the other example of the tape-shaped LED light source in the signboard of FIG.

  Hereinafter, embodiments of a signboard according to the present invention will be described with reference to the drawings.

  First, a first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the signboard 10 includes an LED light source 11 as a linear light source and a light source support member 12 that supports the LED light source 11. As will be described later, the LED light source 11 has a plurality of light emitting diode chips (LED chips) mounted along the length direction, and has a wire shape (or tube shape) as a whole. The light source support member 12 is disposed on the opposite side of the light emission direction of the LED light source 11 (arrow L direction; signboard surface side), and is disposed on the back surface member 13 that supports the LED light source 11 and on the signboard surface side of the LED light source 11. This is a two-plate configuration comprising the surface member 14. In the present embodiment, the LED light source 11 is arranged so as to display two characters “IN”. The LED light source 11 is fixed to the surface of the back surface member 13 by means such as an adhesive or a double-sided tape, and is further sandwiched between the back surface member 13 and the surface member 14 fixed integrally to the back surface member 13 with screws 15. (See FIG. 2).

  The back member 13 is formed from a metal or resin mesh plate or punching plate in which a large number of through holes 13a as openings are formed. In the punching plate, the shape, size, and distance between the holes 13a can be arbitrarily designed as necessary. The surface member 14 is formed of a resin plate that is transparent or translucent and has no opening.

  Since the surface of the signboard 10 in this embodiment is composed of the surface member 14, the LED light source 11 does not protrude from the signboard surface. The LED light source 11 is prevented from contacting the outside by the surface member 14. For this reason, in particular, in the case of a self-supporting signboard arranged at a storefront or the like, there is no possibility that a passerby will be caught and dropped or deformed, and that there is no possibility of being tampered with and damaged. Even if it is installed at a high place, there is no risk of falling off or being damaged by hitting an object flying in the wind. Further, even if the adhesive function of the adhesive or the double-sided tape deteriorates with time, it is sandwiched between the back surface member 13 and the front surface member 14, and therefore peeling from the back surface member 13 is prevented.

  As shown in FIG. 3, the LED light source 11 in this embodiment includes a flexible resin base material 11a and a plurality of LED chips 11b mounted on the resin base material 11a in a single line at a predetermined interval. And a wiring material 11c by a lead wire or a printed circuit electrically connected in parallel to the plurality of LED chips 11b, and a flexible and translucent covering the base material 11a, the plurality of LED chips 11b and the wiring material 11c. And a covering material 11d having Thereby, the LED light source 11 becomes a wire shape (or tube shape) as a whole, and if the LED light source 11 is arranged along a character or graphic displayed on the signboard 10, the luminance of the character or graphic portion is changed to that of other background portions. It is possible to greatly increase the brightness.

  In the LED chip 11b, the light emitting part hardly generates heat, but the IC driving part generates heat. If the heat dissipation is not good, the LED chip 11b does not operate normally, resulting in non-uniform brightness or failure. In this embodiment, since the LED light source 11 is supported by the back surface member 13 made of a punching plate, the through hole 13a communicating with the outside of the signboard faces the IC drive part of the LED chip 11b as shown in FIG. , Good heat dissipation.

  That is, since there are a large number of through-holes 13a on the entire surface of the back member 13, the LED light source 11 as a flexible linear light source can be arranged in the up / down / left / right direction or the oblique direction in any case in the IC drive unit. The probability that the through holes 13a face each other is high. Therefore, the heat dissipation effect can be improved with a simple configuration. Therefore, the service life of the LED light source 11 is extended, and the maintenance cost can be reduced.

  As shown in FIG. 4, the surface member may be composed of a transparent or translucent resin mesh plate or a punching plate. In this case, as shown in FIG. 5 (a), if the distance h between the light emitting surface of the LED chip 11b and the surface member 16 is too short, the irradiation range is narrow, so that the through hole 16a of the surface member 16 is not open. There is a possibility that brightness shading may occur between the portions 16b. In this case, as shown in FIG. 5B, if the distance h ′ is set so that the irradiation range is widened, it is possible to suppress a decrease in luminance at the non-opening portion 16b due to the overlap of the irradiation range. In FIG. 5, reference numerals 17 and 18 denote spacers. In FIG. 4, elements other than the LED chip 11b in the LED light source 11 and screws for integrating the front surface member 16 and the back surface member 13 are omitted.

  About the light source color of the LED light source 11, you may use three primary colors of white LED or red LED, green LED, and blue LED individually or in combination. Moreover, you may comprise so that the brightness and color temperature of light may be changed in steps. As will be described later, instead of a wire-shaped LED light source, a tape-shaped LED light source in which a plurality of LED chips 11b are arranged on a tape-shaped substrate may be used. As a tape-shaped LED light source, it is desirable that a plurality of LED chips are mounted on a resin substrate in a plurality of rows or a plurality of matrices. The surface member may be formed of an opaque mesh plate or punching plate.

  A second embodiment of the present invention will be described with reference to FIGS. In addition, the same part as the said embodiment is shown with the same code | symbol, and already demonstrated on the structure and the function are abbreviate | omitted suitably (it is the same in the following other embodiment).

  As shown in FIG. 6, the signboard 20 in this embodiment includes a wire-shaped LED light source 11 and a light source support member 21 having a single plate configuration. The light source support member 21 is formed of, for example, a resin transparent or translucent plate. On the surface 21 </ b> A of the light source support member 21, a concave groove 22 that accommodates the LED light source 11 that displays the letter I and a concave groove 23 that accommodates the LED light source 11 that displays the letter N are formed. Each LED light source 11 is accommodated in these recessed grooves 22 and 23 in a state of being embedded, that is, not protruding from the surface of the support member 21, and is fixed with an adhesive, a double-sided tape or the like.

  As shown in FIG. 7, an opening 24 that opens to the back surface 21 </ b> B side of the light source support member 21 is provided on the bottom surfaces of the concave grooves 22 and 23 in the thickness direction of the light source support member 21. The LED light source 11 is accommodated in the concave grooves 22 and 23 so that the IC driving part in the LED chip 11 b faces the opening 24. The shape of the opening 24 may be formed as a slit narrower than the width of the concave grooves 22, 23 extending over the entire height direction of the concave grooves 22, 23. Moreover, it is good also as a structure which consists of a some hole formed in the height direction of the concave grooves 22 and 23 at intervals. Heat generated from the LED light source 11 is radiated to the outside of the light source support member 21 through the opening 24.

  A third embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 8A, the signboard 25 in the present embodiment exemplifies a large character signboard attached to the wall surface of the rooftop. For example, the signboard 25 displaying the S character has a back surface member 26 formed in an S shape having the same shape as the S character, and a plurality of columns (here, a line representing the S character on the surface of the back surface member 26). LED light sources 11A, 11B, and 11C as linear light sources arranged in three rows) and a plurality of back plates 29 that are provided on the back side of the back member 26 with spacers 28 therebetween. ing. The signboard 25 is fixed to a wall surface (not shown) with a long bolt 30. Although the light source support member in this embodiment consists of the back surface member 26 and a surface member similarly to 1st Embodiment, the surface member is abbreviate | omitted. In the present embodiment, a plurality of back plates 29 are superimposed, but a single back plate may be provided on the back side of the back member 26.

  In the present embodiment, as shown in FIG. 8B, the back member 26 is a metal or resin punching plate in which a large number of through holes 26a (not shown in some areas) as openings are formed. A bolt insertion hole 26b is formed in addition to the through hole 26a. The plurality of back plates 29 are formed of the same material as that of the back member 26 and are the same. Since the heat generated from the IC drive unit of the LED light source 11 is released to the gap 31 between the back plate 29 and the adjacent back plate 29 through the through hole 26a of the back member 26, heat radiation is performed satisfactorily.

  Regarding the heat radiation of the LED light source 11, it is sufficient if there is a gap between the back member 26 and the adjacent back plate 29, and the gap 31 between the back plates 29 on the back side is not necessarily required. However, by providing the spacers 28 between the plates, there is an advantage that a heavy feeling and a three-dimensional feeling having an important depth as a signboard can be obtained while reducing the weight. The material and the opening shape of the back plate 29 are not limited to the above as long as the above-mentioned profound feeling and three-dimensional feeling can be obtained. As described above, the LED light sources 11A, 11B, and 11C are disposed between the back member 26 and the front member, so that the LED light sources 11A, 11B, and 11C may fall off when an object flying by wind or the like hits it. There is no risk of damage. The light source support member may have a single plate configuration as in the second embodiment.

  The LED light sources 11A and 11C arranged along the edge of the display target such as a character shape are attached to the inside with a certain amount of margin (mounting allowance) instead of passing the edge. For this reason, the brightness tends to decrease and darken at the edge portion. This is due to the directivity of the LED light source. In order to cope with this problem, in this embodiment, as shown in FIG. 9, the LED chips in the LED light sources 11A and 11C arranged on the outermost side among the plurality of LED light sources 11A, 11B and 11C arranged in parallel are used. Is installed with its optical axis tilted outward. That is, the LED light sources 11A and 11C are installed such that the optical axis of the LED chip 11b is inclined α degrees outward. Specifically, for example, the optical axis can be tilted by tilting and mounting the base of the LED chip 11b. In the present embodiment, the case of characters has been described, but the same applies to the case where the display target is a figure or the like. In this way, it is possible to suppress the edge portion from becoming dark, and the brightness of the entire character can be made uniform.

  A fourth embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 10 and 11, the stand-type signboard 32 in the present embodiment includes a support base 33, a light source support member 34 attached to the support base 33 so as to cover the outer surface, and a light source support member 34. And a tape-shaped LED light source 35 to be supported. The support base 33 includes a base plate 36, a support 37 fixed to the base plate 36, a box-shaped support 38 supported by the support 37, and a small-diameter support 39 fixed to a corner of the support 38. ing. Each post 39 is formed with a slit extending in the height direction.

  The light source support member 34 includes a front surface member 34A and a back surface member 34B. Both the front surface member 34A and the back surface member 34B are formed by bending a resin such as acrylic, and the edges of the front surface member 34A and the back surface member 34B are integrated by being inserted into the slits of the support column 39 in a state of being overlapped. As is clear from the partially enlarged view of FIG. 11, the tape-shaped LED light source 35 is accommodated in a concave groove 40 formed by inflating the back surface member 34B and fixed with an adhesive, a double-sided tape, or the like. The LED light source 35 is further sandwiched between the front surface member 34A and the back surface member 34B, as in the first embodiment. The concave grooves 40 are provided at eight places, two places in each of four areas defined by the support column 39 and the light source support member 34.

  An opening 41 penetrating inward in the thickness direction is provided on the bottom surface of the groove 40 in the thickness direction of the back member 34B. The shape of the opening 41 may be formed as a slit that extends over the entire height direction of the groove 40 and is narrower than the width of the groove 40. Moreover, it is good also as a structure which consists of a some hole formed in the height direction of the ditch | groove 40 at intervals. Heat generated from the LED light source 35 is radiated to the inside of the light source support member 34 through the opening 41.

  As shown in FIG. 12, the LED light source 35 includes a flexible resin base 11a, a plurality of LED chips 11b mounted in two rows on the resin base 11a at predetermined intervals, and the plurality of these. Wiring material 11c by a lead wire or a printed circuit electrically connected in parallel to the LED chip 11b, and a flexible and translucent coating material covering the base material 11a, the plurality of LED chips 11b and the wiring material 11c 11d. The LED light source 35 has a flat tape shape as a whole.

  Since the LED light source 35 does not protrude from the surface of the signboard 32, there is no fear of dropout or damage due to contact of a passing person, or damage due to mischief. Further, it is possible to efficiently illuminate the display contents 42 such as graphics and characters printed on the surface member 34A with appropriate brightness. As a tape-shaped LED light source, as indicated by reference numeral 35 ′ in FIG. 13, a plurality of modules 43 in which LED chips 11 b are arranged in a matrix may be mounted along the longitudinal direction.

  In the signboard in each of the above embodiments, an example in which a wire-shaped or tape-shaped LED light source is used as the linear light source has been described, but the present invention is not limited to this. For example, a wire-shaped or tape-shaped organic EL light source formed from organic EL may be used.

  The above-described embodiments are all illustrative of the present invention and are not limited, and the present invention can be implemented in various other modifications and changes. Therefore, the scope of the present invention is defined only by the scope of the utility model registration request and its equivalent scope.

10, 20, 25, 32 Signs 11, 11A, 11B, 11C, 35, 35 ′ LED light sources as linear light sources 11b LED chips as light emitting diode chips 12, 21, 34 Light source support members 13, 26 Back members 13a, 26a Through-hole as opening 14 Surface member 24, 41 Opening 28 Spacer

Claims (10)

  A plurality of light emitting diode chips are mounted along the length direction to support a linear light source having a wire shape or a tape shape as a whole, and the linear light source so that light from the linear light source is emitted from the signboard surface. A light source support member, the light source support member supports the linear light source without protruding from the signboard surface, and corresponds to at least some of the plurality of light emitting diode chips. A signboard having an opening at a position.   The light source support member includes a back surface member arranged on the opposite side to the signboard surface side of the linear light source and supporting the linear light source, and a surface member arranged on the signboard surface side of the linear light source. The signboard according to claim 1, wherein the back member has the opening.   The signboard according to claim 2, wherein the back member is formed of a mesh plate or a punching plate having a plurality of through holes.   A concave groove is formed in the signboard surface side of the light source support member to accommodate the linear light source in an embedded state, and the opening is provided on the bottom surface of the concave groove in the thickness direction of the light source support member. The signboard according to claim 1, wherein:   The signboard according to any one of claims 1 to 4, wherein the linear light source is configured by mounting the plurality of light emitting diode chips in a line along the length direction. .   5. The signboard according to claim 1, wherein the linear light source is configured by mounting the plurality of light emitting diode chips in a plurality of rows along the length direction. 6. .   5. The linear light source according to claim 1, wherein the plurality of light emitting diode chips are mounted in a plurality of matrix shapes along the length direction. 6. Signboard.   The light source support member has the same shape as a character or graphic displayed on a signboard, and a plurality of the linear light sources are arranged in parallel with each other along a line representing the character or graphic of the light source support member. The light emitting diode chip in the outermost linear light source among the plurality of linear light sources arranged in parallel is disposed with its optical axis inclined to the outer side. The signboard of any one of 1-4.   9. The signboard according to claim 8, wherein at least one member having the same shape as the light source support member is provided on a side opposite to the signboard surface of the light source support member with a spacer interposed therebetween. .   The linear light source is electrically connected to a wire-shaped or tape-shaped substrate, the plurality of light-emitting diode chips mounted on the substrate at predetermined intervals along the length direction, and the plurality of light-emitting diode chips. Any one of Claims 1-9 characterized by providing the wiring material connected electrically, and the base material, the several light emitting diode chip, and the translucent coating | covering material which covers the said wiring material. The signboard described in the section.

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