TWI676775B - refrigerator - Google Patents

Abstract

[Problem] To provide a refrigerator that suppresses a decrease in visibility and reduces the number of light-emitting portions to be used. [Solution] A refrigerator is provided with a storage room having a ceiling surface and a side wall slightly orthogonal to the ceiling surface; and a shelf; and a lighting device in the cabinet having a plurality of light-emitting sections arranged therein. The substrate and the light-emitting portion are arranged slightly parallel to the top plate surface. For a certain light-emitting portion arranged at the mounting substrate, the light-emitting portion and the light-emitting portion arranged closer to the center side than the light-emitting portion are adjacent to each other. The interval between the parts is larger than the interval between the light-emitting parts which are arranged closer to the left and / or the right side than the light-emitting part and adjacent to each other.

Description

refrigerator

[0001] The present invention relates to a refrigerator.

[0002] A refrigerating room, which is a storage space provided in a refrigerator, has a large volume and a high use frequency. Therefore, in order to improve the visibility of a user, the entire area of the refrigerating room is brightly illuminated One thing matters. In addition, in order to save power and perform bright lighting, light emitting diodes (light emitting diodes, LEDs) having a low power consumption are widely used as lighting devices in a cabinet. [0003] Patent Document 1 relates to a ceiling surface in a box, and includes a lighting device made of LEDs arranged at equal intervals (paragraph 0024). [Prior Art Document] [Patent Document] [0004] [Patent Document 1] Japanese Patent Laid-Open No. 2011-27324

[Problems to be Solved by the Invention] [0005] If a large number of light emitting diodes are used, the manufacturing cost and power consumption increase. In addition, since the lighting angle of the light-emitting diode is wide, if it is arranged at equal intervals, the light will be easily concentrated in the center, and the inside of the box will be illuminated with more than the required brightness. [0006] The present invention aims to provide a refrigerator in which the number of light emitting diodes arranged in a box is reduced. [Means for Solving the Problems] [0007] The first invention of the present invention, which is made in view of the above-mentioned situation, is a refrigerator, which includes a storage room having a top plate surface, and is slightly normal to the top plate surface. The side wall; the shelf; and the lighting device in the box are mounting substrates provided with a plurality of light-emitting portions. The light-emitting portions are arranged slightly parallel to the top plate surface. The refrigerator is characterized by: : For a certain light-emitting portion arranged on the mounting substrate, the interval between the light-emitting portion and the light-emitting portion arranged closer to the central side than the light-emitting portion and adjacent to each other is more than the distance between the light-emitting portion and the light-emitting portion. The interval between the light-emitting portions on the left and / or right side and adjacent to each other is larger than the light-emitting portion. [0008] In addition, a second aspect of the present invention, which is made in view of the above circumstances, is a refrigerator including a lighting device in a box, the lighting device in the box having: a light-emitting portion, which is arranged in a storage The side wall of the room and the mounting substrate are provided with a plurality of light-emitting portions. The refrigerator is characterized in that the interval between adjacent light-emitting portions disposed at the central side of the mounting substrate is relatively small. The interval between the light-emitting portions adjacent to each other on the end side of the mounting substrate is larger. [Effects of the Invention] [0009] According to the present invention, it is possible to provide a refrigerator in which the number of light-emitting diodes arranged in a box is reduced.

[0011] Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. [Embodiment 1] [0012] FIG. 1 is a front view of a refrigerator according to Embodiment 1 of the present invention. The refrigerator body 1 includes a refrigerator compartment, a second freezer compartment, an ice-making compartment, a freezer compartment, and a fruit and vegetable compartment from above. The front opening of the refrigerator compartment is provided with a left side refrigerator compartment door 2a and a right side refrigerator compartment door 2b, and is rotated through the upper and lower pivots to form a French door that opens and closes the refrigerator compartment. ). A second freezer compartment door 3, an ice-making compartment door 4, a freezer compartment door 5, and a vegetable and fruit compartment door 6 are respectively provided in front of each of the second freezer compartment, the ice-making compartment, the freezer compartment, and the vegetable-fruit compartment. In addition, the second freezing compartment door 3, the ice-making compartment door 4, the freezing compartment door 5, and the fruit and vegetable compartment door 6 are pull-out doors that move forward and backward. [0013] FIG. 2 is a front view of the refrigerating compartment of this embodiment. In the refrigerating room, an in-box lighting device having a mounting substrate 7 and a light-emitting diode 8, a top plate surface 9, and an in-box shelf 10 are provided. The inner shelf 10 arranged in a plurality of stages in the refrigerator compartment and separated from each other in the vertical direction is made of a transparent resin material or glass material. Therefore, for example, when food is not placed on the shelf 10 in the box, the light of the lighting device in the box can be transmitted from the upper direction to the lower direction. The lighting device in the box is constituted by a mounting substrate 7 or the like on which the light emitting diode 8 is mounted. The lighting device in the box is installed on the front side (the side of the refrigerator door 2a, 2b) of the ceiling surface 9 of the refrigerator, and the long side direction is slightly aligned with the left-right direction. At the mounting substrate 7, the light emitting diodes 8 are plurally arranged along the longitudinal direction. [0014] The food placed on the shelf 10 in the box is irradiated with light from the light-emitting diode 8 having directivity from the top to the bottom. In other words, a part of the light irradiated from the light-emitting diode 8 is irradiated to the food portion of the uppermost shelf 10 in the box, and the remaining light is directed straight downward. After that, the light is irradiated onto the food placed on the shelf 10 in the box in the second stage from the top, and the remaining light advances straight downward. The food in the box shelf 10 below the third stage is similarly irradiated with light. [0015] Moreover, the light irradiated by the lighting device in the box is not completely blocked by the food, but passes through the food room and also reaches the uppermost stage and / or the second stage of the side wall 11. The height position of the scaffold below. The light that has reached the side wall 11 is configured to be reflected by the side wall 11 and irradiate the food placed below the second stage from the inner side of the box. The light emitted from the light-emitting diodes 8 constituting the lighting device in the box directly illuminates the uppermost section of the shelf 10 in the box. The food placed on the box shelf 10 below the second stage is the light from the light emitting diode 8 after passing through the box shelf 10 at the uppermost stage and from above. The light reflected by the side walls 11 above the height of the shelf 10 in the second paragraph of the box is indirectly illuminated. [0016] FIG. 3 is a drawing that draws attention to one of the light-emitting diodes 8 and the uppermost shelf 10 and the side wall 11 of the present embodiment. The irradiation angle of the light-emitting diode 8 is set to ω, the horizontal distance from the side wall 11 to the light-emitting diode 8 is set to L, and the refrigerator top plate surface 9 to the uppermost box shed The vertical distance up to the rack 10 is set to h, and the maximum height at which the light within the irradiation angle of the light emitting diode 8 directly reaches the side wall 11 of the refrigerator is set to H. However, the so-called irradiation angle refers to an intensity that is more than 1/2 of the intensity detected in the direction where the light from the light emitting diode 8 is the strongest (in this embodiment, the direction directly below). The angle range, for example, in this embodiment, a light-emitting diode of ω = 120 ° can be used. [0017] In order for the light within the irradiation angle ω of the light-emitting diode 8 to reach the end of the shelf 10 in the uppermost stage and the side wall 11, the relationship of h> H may be established. According to this relationship, the distance L between the light emitting diode 8 and the refrigerator side wall 11 should satisfy the conditional expression (1). [Expression 1] [0019] If h is set to 210 mm and ω is set to 120 °, the distance L between the light emitting diode 8 and the refrigerator side wall 11 should be set within 363 mm. When h is 130 mm, it is preferable that the L system is within 225 mm. Generally, in a refrigerator, since h ≦ 210 mm, it is preferably L <363 mm, and more preferably L <225 mm. In addition, in order to allow the light to reach all the areas even when the range of the uppermost shelf 10 in the box is the largest, and to illuminate the upper shelf 10 in the second step from above, The upper side wall 11 also brightens the position of the inner shelf 10 of the second stage from the upper side toward the side wall 11, which is ideal because it will make the light emitting diodes at both ends of the mounting substrate 7 8 is constituted so as to satisfy the formula (1). Thereby, the foodstuffs arrange | positioned at the both ends of the in-box shelf 10 in the uppermost stage can also be irradiated with light, and visibility can be improved. [0020] FIG. 4 is a front view of a mounting substrate 7 constituting the lighting device in the box of the present embodiment. On the long-side direction of the mounting substrate 7 (when mounted on the top plate surface 9, it is slightly consistent with the left-right direction), a plurality of light-emitting diodes 8 are arranged, and these are classified into 2 or 3 Groups. In this embodiment, each light-emitting diode 8 belongs to a right-side group 81 that will be located on the right side when it is mounted on the top plate surface 9 and a left-side group 82 that will be located on the left side and will be located on the right side. One of the central group 83 between the group and the left group. The number of light-emitting diodes 8 belonging to the right group 81 or the left group 82 is one or more, and the number of light-emitting diodes 8 belonging to the central group 83 is 0, 1 or 2 or more. [0021] The distance between the light emitting diodes 8 belonging to the right group 81 and the left group 82 and the light emitting diodes 8 adjacent to each other in the same group is L1. It may also be different from this embodiment, so that the distance between itself in the right group 81 and the light-emitting diodes 8 belonging to the same group and adjacent to each other is the same as that in the left group 82 The distance between the group of light emitting diodes 8 adjacent to each other is different from each other. L1 may be, for example, 30 mm or less. [0022] From the leftmost light-emitting diode 8 of the light-emitting diodes 8 belonging to the right group 81 to the light-emitting diode 8 located at the most right side of the light-emitting diodes 8 belonging to the central group 83 The distance up to the pole body 8 is L2. In addition, from the light-emitting diode 8 on the far right side among the light-emitting diodes 8 belonging to the left group 82 to the light-emitting diode 8 on the far left side among the light-emitting diodes 8 belonging to the central group 83 The distance to the body 8 is L2. It can also be different from this embodiment, so that these distances are different from each other. L2 can be, for example, 1.3 times to 2.5 times L1. When the number of light-emitting diodes 8 belonging to the central group 83 is zero, the light-emitting diodes 8 from the leftmost of the light-emitting diodes 8 belonging to the right-side group 81 will be included until they belong to the left-side group. Among the light emitting diodes 8 of 82, the distance up to the rightmost light emitting diode 8 is set to L4. [0023] The distance between the light-emitting diodes belonging to the central group 83 and the light-emitting diodes 8 adjacent to each other in the same group is L3. [0024] Since a relatively large number of light emitting diodes 8 are arranged on the left and right sides of the mounting substrate 7, the light system is easy to concentrate. On the other hand, the left and right end sides of the mounting substrate are Only one of the left and right sides has a large number of light-emitting diodes 8, and therefore the light system is easily weakened. Therefore, by reducing the relative density of the light-emitting diode 8 at the center side of the mounting substrate 7, the illuminance can be made uniform, and the configuration that makes the brightness more than necessary can be suppressed. . That is, in this embodiment, the system is configured so that the relational expression L2> L1 is established, and more preferably, it is set to L2 ≧ 2 × L1. In this way, rather than arranging the light emitting diodes 8 at regular intervals, the density on the center side can be set to the left and right sides (one of the left and right sides, and ideally, both sides). And lower density. With this, it is possible to reduce the use of light-emitting diodes while suppressing the deterioration of visibility. [Embodiment 2] [0025] The configuration of this embodiment can be the same as that of Embodiment 1 except for the following points. Fig. 5 is a front view of a mounting substrate 7 constituting a lighting device in a box according to a second embodiment of the present invention. When stored food is placed on the shelf in the box, the amount of light transmitted through the shelf 10 in the box is reduced. Therefore, in order to illuminate the shelf 10 in the box below the second stage, the side wall 11 is illuminated. The reflection system becomes important. Therefore, the distance of the light emitting diode 8 is set to L3>L2> L1. As a result, the distance L1 between the regions closest to the left and right end portions is reduced, and the distance is increased as the distance to the center is increased. At this time, the number of light emitting diodes belonging to the left and right side groups 81 and 82 can be set to be the same as or more than the number of light emitting diodes belonging to the central group 83. Therefore, it is possible to effectively illuminate the side wall 11 and also provide light to the inner shelf 10 below the second stage, while reducing the number of light-emitting diodes used. [Embodiment 3] [0026] The configuration of this embodiment can be the same as that of Embodiment 1 except for the following points. Fig. 6 is a front view of a mounting substrate 7 constituting a lighting device in a box according to a third embodiment of the present invention. In this embodiment, the number of light-emitting diodes 8 belonging to the central group 83 is set to zero. When the light-emitting diode 8 of Example 1 is used, if it is set to L4 <140mm, it is preferable from a viewpoint of ensuring brightness. [Embodiment 4] [0027] The configuration of this embodiment can be the same as that of Embodiment 1 except for the following points. Fig. 7 is a front view of a mounting substrate 7 constituting a lighting device in a box according to a fourth embodiment of the present invention. If the visibility of the central side of the inner shelf 10 of the uppermost box is considered, it is more ideal, and the light emitting diodes 8 are set to L3 ≧ 2 × L2 and L2 ≧ 2 × L1. At this time, the number of light emitting diodes belonging to the left and right side groups 81 and 82 can be set to be the same as or more than the number of light emitting diodes belonging to the central group 83. In this embodiment, four light emitting diodes 8 are arranged in total at each of the two left and right ends of the mounting substrate 7 so as to illuminate the two ends of the upper shelf 10 in the box. And indirectly illuminates the inner shelf 10 below the second stage by reflecting light from the side wall 11. The center of the uppermost box shelf 10 is illuminated by the two light-emitting diodes 8 of the central group 83, and the inner shelf of the lower section 2 is illuminated by the light transmitted through the inner shelf 10架 10。 Frame 10. [0028] If it is a refrigerator constructed as described above, the uppermost box shelf 10 can directly and uniformly irradiate to both sides of the width direction, and the inner box shelf below the second stage The rack 10 can illuminate the light after passing through the inner shelf 10 and the light reflected from the side wall 11 to equalize the illuminance on the inner shelf 10, and may not reduce visual visibility. , And can reduce the number of light-emitting diodes 8 used. The surface on which the mounting substrate 7 is mounted is not limited to the top surface, but may be a side surface. In this case, too, it is possible to reduce the use of the light-emitting diodes while suppressing the decrease in the visibility by the configuration of each embodiment.

[0029]

1‧‧‧Refrigerator body

2a‧‧‧ left refrigerator door

2b‧‧‧ refrigerator door on the right

7‧‧‧ mounting base

8‧‧‧light-emitting diode (light-emitting part)

9‧‧‧ roof surface

10‧‧‧ Shelf in box

11‧‧‧ sidewall

[0010] FIG. 1 is a front view of a refrigerator according to a first embodiment of the present invention. [Fig. 2] is a front view of the refrigerating room of the first embodiment. [Fig. 3] It is a drawing that pays attention to the uppermost part of one light emitting diode and the inner shelf of the box and the side wall. [Fig. 4] is a front view of a mounting substrate constituting the lighting device in the box according to the first embodiment of the present invention. [Fig. 5] is a front view of a mounting substrate constituting a lighting device in a box according to a second embodiment of the present invention. [Fig. 6] is a front view of a mounting substrate constituting a lighting device in a box according to a third embodiment of the present invention. [Fig. 7] is a front view of a mounting substrate constituting a lighting device in a box according to a fourth embodiment of the present invention.

Claims (7)

A refrigerator includes: a storage room having a top plate surface and a side wall slightly orthogonal to the top plate surface; a shelf; and a lighting device in the box having a mounting substrate configured with a plurality of light emitting sections, The light-emitting portion is arranged slightly parallel to the top plate surface. The refrigerator is characterized in that a certain light-emitting portion arranged on the mounting substrate is arranged to be more than the light-emitting portion. The interval between the light-emitting portions adjacent to and adjacent to the center side is more than the interval between the light-emitting portions disposed closer to the left and / or the right and adjacent to the light-emitting portion. Large, the horizontal distance L from the light-emitting part closest to the side wall to the side wall among the light-emitting parts satisfies Equation 1: [Mathematical expression 1] L <[h / tan {(π-ω) / 2}] ‧‧‧(1). The refrigerator according to item 1 of the scope of patent application, wherein the lighting device in the box is provided with a right-side group and / or a left-side group each having a plurality of light-emitting sections arranged side by side at an interval L1, and belongs to Of the light-emitting portions of the right-side group and / or the left-side group, the light-emitting portion closest to the center of the mounting substrate is a light-emitting portion that uses the light-emitting portion as a starting point and is adjacent to the light-emitting portion toward the center of the mounting substrate. The interval L2 or L4 is larger than L1. The refrigerator according to item 2 of the scope of patent application, wherein the light emission from the most central light-emitting portion belonging to the right group to the right-most light-emitting portion belonging to the central group The distance up to and / or the distance from the most central light-emitting part among the light-emitting parts belonging to the left group to the left-most light-emitting part among the light-emitting parts belonging to the central group is set to L2, The above-mentioned central group is located more to the left than the right group and / or more to the right than the left group, and has one or two or more light-emitting sections and one or more members. The light-emitting part of the central group satisfies the relation L1 <L2 <2 × L1. The refrigerator according to item 2 of the scope of patent application, wherein the light emission from the most central light-emitting portion belonging to the right group to the right-most light-emitting portion belonging to the central group The distance up to and / or the distance from the most central light-emitting part among the light-emitting parts belonging to the left group to the left-most light-emitting part among the light-emitting parts belonging to the central group is set to L2, The above-mentioned central group is located more to the left than the right group and / or more to the right than the left group, and has two or more light-emitting sections. If the interval is set to L3, then the relationship L1 <L2 <L3 is satisfied. The refrigerator according to item 2 of the scope of patent application, in which, from the light-emitting part located on the most central side of the light-emitting parts belonging to the left group to the center of the light-emitting part that belongs to the right-side group, If the distance to the side light emitting part is set to L4, it satisfies L4 <140mm. The refrigerator according to item 4 of the scope of patent application, wherein the relationship satisfies the relation L3 ≧ 2 × L2 and L2 ≧ 2 × L1. A refrigerator is provided with: a storage room having a top plate surface and a side wall slightly orthogonal to the top plate surface; a shelf; and a lighting device in the box configured with a plurality of light emitting sections, the light emitting sections, The refrigerator is arranged slightly parallel to the top surface. The refrigerator is characterized in that the horizontal distance L from the light-emitting part closest to the side wall to the side wall meets the formula 1: L <[h / tan {( π-ω) / 2}] ‧‧‧ (1).