WO2011105026A1 - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
WO2011105026A1
WO2011105026A1 PCT/JP2011/000851 JP2011000851W WO2011105026A1 WO 2011105026 A1 WO2011105026 A1 WO 2011105026A1 JP 2011000851 W JP2011000851 W JP 2011000851W WO 2011105026 A1 WO2011105026 A1 WO 2011105026A1
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WO
WIPO (PCT)
Prior art keywords
light emitting
light
emitting element
refrigerator
emitting unit
Prior art date
Application number
PCT/JP2011/000851
Other languages
French (fr)
Japanese (ja)
Inventor
普文 塚本
恵一 高瀬
利幸 森内
雅司 湯浅
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to CN201180009470.9A priority Critical patent/CN102762940B/en
Publication of WO2011105026A1 publication Critical patent/WO2011105026A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D27/00—Lighting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0044—Household appliances, e.g. washing machines or vacuum cleaners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/305—Lighting for domestic or personal use for refrigerators

Definitions

  • the present invention relates to a refrigerator, and more particularly, to a refrigerator including a semiconductor light emitting element that irradiates light in a warehouse.
  • Patent Document 1 discloses a refrigerator including a lighting device having a light emitting diode that is a semiconductor light emitting element on the top surface of the refrigerator. This semiconductor light emitting element is arranged so that the optical axis of the light to be irradiated is directed in the vertical direction, and the interior of the refrigerator can be illuminated brightly by irradiating light downward in the vertical direction.
  • the conventional refrigerator has a problem that the illuminance on the back side in the cabinet is lowered by the light emitted from the semiconductor light emitting element.
  • the present invention has been made in view of such a problem, and provides a refrigerator capable of increasing the illuminance of light emitted from a semiconductor light emitting element even when the semiconductor light emitting element is inclined.
  • the purpose is to do.
  • a refrigerator includes a main box having an opening on a front surface, and a light emitting unit that is disposed on an inner wall surface of the main box and irradiates light toward the main box.
  • the light-emitting unit includes: a semiconductor light-emitting element disposed so that an optical axis of light to be irradiated is inclined from an axis perpendicular to the inner wall surface on which the light-emitting unit is disposed; and the semiconductor light-emitting element And a cover member having a transmission part that transmits the light irradiated by the light transmission unit, and the transmission part has an incident surface part perpendicular to the optical axis on a surface on which the light is incident.
  • the light is incident so that the optical axis of the light emitted from the semiconductor light emitting element is perpendicular to the incident surface portion of the cover member.
  • the light incident perpendicularly to the surface of the cover member is not reflected by the cover member.
  • the semiconductor light emitting element is inclined, the light emitted from the semiconductor light emitting element can be reduced from being reflected by the cover member, so that the light emitted from the semiconductor light emitting element can be reduced. Illuminance can be increased.
  • the transmission part has a curved emission surface part for diffusing the light on a surface from which the light is emitted.
  • the light irradiated from the semiconductor light emitting element is diffused and emitted from the curved emission surface portion of the cover member. For this reason, since the said light is diffused and discharge
  • a plurality of grooves extending in the thickness direction are formed on the front side surface of the cover member.
  • the cover member is formed with a plurality of grooves extending in the thickness direction on the front side surface.
  • the light irradiated from the semiconductor light emitting element is reflected by the groove and diffused forward. For this reason, the illumination intensity ahead of a cover member can also be improved.
  • the light emitting unit is disposed on an upper wall surface or a side wall surface of the main box.
  • the light emitting unit is arranged on the upper wall surface or the side wall surface of the main box. For this reason, the illumination intensity of the light irradiated to the back side of a refrigerator can be raised by directing the optical axis of the light irradiated from a semiconductor light-emitting element to the back side of a refrigerator.
  • a shelf board is further provided on the inside of the main box inside the main box, and the light emitting unit is disposed in front of the shelf board.
  • the light emitting unit is arranged in front of the shelf board. For this reason, since the light from a semiconductor light emitting element is irradiated to the accommodation mounted on the shelf board, the visibility of the said accommodation can be improved.
  • the present invention it is possible to provide a refrigerator capable of increasing the illuminance of light emitted from a semiconductor light emitting element even when the semiconductor light emitting element is disposed at an angle.
  • FIG. 1 is a front view of the refrigerator in the embodiment of the present invention.
  • FIG. 2 is a front view of the upper portion of the refrigerator in which the heat insulating door in the embodiment of the present invention is omitted.
  • FIG. 3 is a vertical cross-sectional view of the upper part of the refrigerator in the embodiment of the present invention.
  • FIG. 4 is a diagram illustrating the configuration of the light emitting unit in the embodiment of the present invention.
  • FIG. 5 is a perspective view of the cover member according to the embodiment of the present invention as viewed from the incident surface side.
  • FIG. 6 is a perspective view of the cover member according to the embodiment of the present invention as viewed from the discharge surface side.
  • FIG. 1 is a front view of a refrigerator 100 according to an embodiment of the present invention.
  • the refrigerator 100 includes a storage compartment partitioned into a plurality of sections in the main box 101.
  • the main box 101 is a box having an opening on the front surface, and is provided with a heat insulating performance that blocks heat from entering and exiting the inside and outside of the refrigerator 100.
  • a plurality of compartments in the refrigerator 100 are divided into a refrigeration room 102, an ice making room 105, an ice making room 105 according to its function (cooling temperature), a switching room 106 in which the temperature in the warehouse can be changed, a vegetable room 104, Also referred to as the freezer compartment 103 or the like.
  • a rotary heat insulating door 107 filled with foam heat insulating material such as urethane is provided in the front opening of the refrigerator compartment 102.
  • heat insulating doors are provided at the front openings of the ice making room 105, the switching room 106, the vegetable room 104, and the freezing room 103, respectively.
  • Each of the storage chambers is sealed so that there is no leakage of cold air by these heat insulating doors.
  • FIG. 2 is a front view of the upper portion of the refrigerator 100 in which the heat insulating door in the embodiment of the present invention is omitted. That is, the figure shows a front view of the refrigerator compartment 102 portion.
  • FIG. 3 is a vertical cross-sectional view of the upper part of the refrigerator 100 in the embodiment of the present invention. That is, this figure shows a longitudinal sectional view of a portion of the refrigerator compartment 102.
  • the refrigerator 100 is provided with a shelf board 110 on the inner side of the main box body 101 on which things are placed. Specifically, five plate-like resin-made shelf boards 110 are arranged inside the refrigerator compartment 102. Note that the number of the shelf boards 110 is not limited to five, and may be any number.
  • the refrigerator 100 includes a light emitting unit 200.
  • the light emitting unit 200 is a device that is arranged on the inner wall surface of the main box body 101 and irradiates light inside the main box body 101.
  • the inner wall surface is any one of the ceiling surface, the side wall surface, the back wall surface, and the floor surface of the main box 101, and here is the ceiling surface.
  • the light emitting unit 200 is arranged on the upper wall surface portion 101 a of the ceiling surface of the main box body 101 and in front of the shelf board 110.
  • the light emitting unit 200 is disposed in a recess formed in the upper wall surface portion 101a of the main box body 101. Further, the light emitting unit 200 is disposed in front of the shelf plate 110 (the position P shown in the figure) in the front (front direction of the refrigerator 100).
  • FIG. 4 is a diagram illustrating the configuration of the light emitting unit 200 in the embodiment of the present invention.
  • the light emitting unit 200 includes a semiconductor light emitting element 210 and a cover member 220.
  • the semiconductor light emitting element 210 is a light emitting element that generates light and emits light toward the inside of the refrigerator compartment 102.
  • the semiconductor light emitting element 210 is an LED (Light Emitting Diode), but is not limited to an LED as long as it can emit light.
  • the semiconductor light emitting element 210 is arranged so that the optical axis of the irradiated light is inclined from the axis perpendicular to the upper wall surface portion 101a where the light emitting unit 200 is arranged.
  • the optical axis of the light emitted from the semiconductor light emitting element 210 is the optical axis A.
  • the axis perpendicular to the upper wall surface portion 101a is the normal line Q.
  • the optical axis A is inclined from the normal line Q.
  • the cover member 220 is a flat resin cover that covers the front of the semiconductor light emitting element 210 (the direction in which light is irradiated).
  • the cover member 220 includes a transmission part 221 and a groove part 222.
  • the transmission part 221 is a part that is provided in the central part of the cover member 220 and transmits light emitted from the semiconductor light emitting element 210.
  • the transmission part 221 includes an incident surface part 221a on a surface on which light emitted from the semiconductor light emitting element 210 is incident, and an emission surface part 221b on a surface on which light emitted from the semiconductor light emitting element 210 is emitted.
  • the surface of the cover member 220 other than the emission surface portion 221b has a different shape from the emission surface portion 221b and has an uneven shape (not shown) that diffusely reflects light. The light emitted from the light is irregularly reflected on the uneven surface, and the interior is illuminated uniformly.
  • FIG. 5 is a perspective view of the cover member 220 according to the embodiment of the present invention as viewed from the incident surface portion 221a side.
  • the incident surface portion 221 a is a surface portion disposed on the surface of the transmission portion 221 facing the semiconductor light emitting element 210.
  • the incident surface portion 221a is a planar surface portion perpendicular to the optical axis of the light emitted from the semiconductor light emitting element 210. That is, as shown in FIG. 4, the optical axis A of the light emitted from the semiconductor light emitting element 210 is orthogonal to the incident surface portion 221a.
  • the shape of the incident surface portion 221a is not limited to a planar shape, and may be, for example, a concave curved surface shape so that the distance from the semiconductor light emitting element 210 is equal.
  • FIG. 6 is a perspective view of the cover member 220 in the embodiment of the present invention as viewed from the discharge surface portion 221b side.
  • the emission surface portion 221b is a surface portion disposed on the surface of the transmission portion 221 corresponding to the incident surface portion 221a.
  • the emission surface portion 221b is a curved surface portion that diffuses light emitted from the semiconductor light emitting element 210.
  • the discharge surface portion 221 b has a convex curved surface shape so as to protrude from the center portion of the cover member 220.
  • the groove 222 is a groove formed in the front side surface of the cover member 220 and extending in the thickness direction of the cover member 220.
  • a plurality of groove portions 222 are formed on the front side surface of the cover member 220. That is, a plurality of protrusions extending in the thickness direction are formed on the front side surface of the cover member 220 by the plurality of groove portions 222.
  • the light is incident so that the optical axis of the light emitted from the semiconductor light emitting element 210 is perpendicular to the incident surface portion 221a of the cover member 220.
  • the light incident perpendicularly on the surface of the cover member 220 is not reflected by the cover member 220.
  • the semiconductor light emitting element 210 is tilted, the light emitted from the semiconductor light emitting element 210 can be reduced from being reflected by the cover member 220.
  • the illuminance of the emitted light can be increased.
  • the light emitted from the semiconductor light emitting element 210 is diffused and emitted from the curved emission surface portion 221b of the cover member 220. For this reason, since the said light is diffused and discharge
  • the cover member 220 has a plurality of grooves 222 extending in the thickness direction on the front side surface.
  • the light emitted from the semiconductor light emitting element 210 is reflected by the groove 222 and diffused forward. For this reason, the illumination intensity ahead of the cover member 220 can also be improved.
  • the light emitting unit 200 is disposed on the upper wall surface or the side wall surface of the main box body 101. For this reason, the illuminance of the light irradiated to the back side of the refrigerator 100 can be increased by directing the optical axis of the light irradiated from the semiconductor light emitting element 210 to the back side of the refrigerator 100.
  • the light emitting unit 200 is disposed in front of the shelf board 110. For this reason, since the light from the semiconductor light emitting element 210 is irradiated to the accommodations placed on the shelf board 110, the visibility of the accommodations can be improved.
  • the light emitting unit 200 is arranged on the ceiling surface of the main box body 101.
  • the wall surface on which the light emitting unit 200 is disposed is not particularly limited.
  • the light emitting unit 200 may be disposed on the side wall surface of the main box body 101.
  • the light emitting unit 200 may be arranged on the side wall of the refrigerator compartment 102 shown in FIG. Even in this case, the illuminance of the light irradiated on the back side of the refrigerator 100 can be increased by directing the optical axis of the light irradiated from the semiconductor light emitting element 210 toward the back side of the refrigerator 100.
  • the light emitting unit 200 may be disposed on the inner wall surface or floor surface of the main box body 101.
  • the shape and material of the cover member 220 are made of a flat resin, but the shape and material of the cover member 220 are not limited. That is, the material of the cover member 220 may be any material as long as the light emitted from the semiconductor light emitting element 210 can be transmitted. Further, the shape of the cover member 220 may be any shape other than the transmission part 221 and the groove part 222.
  • the shape of the discharge surface portion 221b is a curved surface shape.
  • the shape of the emission surface portion 221b is not limited to a curved surface shape, and may be, for example, a planar shape parallel to the incident surface portion 221a.
  • a plurality of grooves 222 are formed on the front side surface of the cover member 220.
  • the cover member 220 may not have the groove 222 formed therein.
  • the light emitting unit 200 is disposed in front of the shelf board 110.
  • the arrangement position of the light emitting unit 200 in the front-rear direction is not particularly limited.
  • the light emitting unit 200 may be arranged on the back side of the refrigerator 100 and used as illumination that illuminates the back side.
  • the present invention can be used for a refrigerator.

Abstract

Disclosed is a refrigerator (100) provided with a main box (101) having an opening on the front surface thereof and a light emitting unit (200) which is disposed on the inner wall surface of the main box (101) and which emits light toward the inside of the main box (101). The light emitting unit (200) is provided with a semiconductor light emitting element (210) which is disposed so that the optical axis of light to be emitted is inclined with respect to the axis perpendicular to the inner wall surface on which the light emitting unit (200) is disposed, and a cover member (220) having a transmission portion (221) through which light to be emitted by the semiconductor light emitting element (210) is transmitted. The transmission portion (221) has an incident surface portion (221a) perpendicular to the optical axis on the surface through which light enters.

Description

冷蔵庫refrigerator
　本発明は、冷蔵庫に関し、特に、庫内に光を照射する半導体発光素子を備える冷蔵庫に関する。 The present invention relates to a refrigerator, and more particularly, to a refrigerator including a semiconductor light emitting element that irradiates light in a warehouse.
　従来、庫内に光を照射する半導体発光素子を備えている冷蔵庫が知られている。例えば、特許文献１には、冷蔵庫の庫内天面に、半導体発光素子である発光ダイオードを有する照明装置を備えている冷蔵庫が開示されている。この半導体発光素子は、照射する光の光軸が鉛直方向に向くように配置され、鉛直方向下向きに光を照射することで、冷蔵庫の庫内を明るく照らすことができる。 Conventionally, a refrigerator including a semiconductor light emitting element that irradiates light in a cabinet is known. For example, Patent Document 1 discloses a refrigerator including a lighting device having a light emitting diode that is a semiconductor light emitting element on the top surface of the refrigerator. This semiconductor light emitting element is arranged so that the optical axis of the light to be irradiated is directed in the vertical direction, and the interior of the refrigerator can be illuminated brightly by irradiating light downward in the vertical direction.
特開２００１－８２８６９号公報JP 2001-82869 A
　しかし、従来の冷蔵庫は、半導体発光素子から照射される光では、庫内の奥側の照度が低くなるという問題がある。 However, the conventional refrigerator has a problem that the illuminance on the back side in the cabinet is lowered by the light emitted from the semiconductor light emitting element.
　つまり、特許文献１に開示された冷蔵庫では、半導体発光素子から照射される光の光軸が、鉛直方向に向いているため、冷蔵庫の奥側の照度が低くなる。ここで、当該光の光軸が奥側に向くように、半導体発光素子を傾けて配置することにより、冷蔵庫の奥側の照度を高めることが考えられる。しかし、本願発明者らは、鋭意研究の結果、傾いて配置された半導体発光素子から照射される光は、半導体発光素子の前方を覆うカバーによって反射されるため、照度が低くなってしまうことを見いだすに至った。 That is, in the refrigerator disclosed in Patent Document 1, since the optical axis of the light emitted from the semiconductor light emitting element is oriented in the vertical direction, the illuminance on the back side of the refrigerator becomes low. Here, it is conceivable to increase the illuminance on the back side of the refrigerator by tilting the semiconductor light emitting element so that the optical axis of the light faces the back side. However, as a result of earnest research, the inventors of the present application have found that light emitted from an inclined semiconductor light emitting element is reflected by a cover covering the front of the semiconductor light emitting element, resulting in low illuminance. I came to find it.
　このように、従来の冷蔵庫では、奥側の照度を高めるために半導体発光素子を傾けて配置しても、当該照度を高めることができないという問題がある。 Thus, in the conventional refrigerator, there is a problem that the illuminance cannot be increased even if the semiconductor light emitting element is tilted to increase the illuminance on the back side.
　そこで、本発明は、このような問題に鑑みてなされたものであり、半導体発光素子が傾いて配置されている場合でも、半導体発光素子から照射される光の照度を高めることができる冷蔵庫を提供することを目的とする。 Accordingly, the present invention has been made in view of such a problem, and provides a refrigerator capable of increasing the illuminance of light emitted from a semiconductor light emitting element even when the semiconductor light emitting element is inclined. The purpose is to do.
　上記目的を達成するために、本発明に係る冷蔵庫は、前面に開口部を有する主箱体と、前記主箱体の内壁面に配置され前記主箱体内方に光を照射する発光ユニットとを備える冷蔵庫であって、前記発光ユニットは、照射する光の光軸が、前記発光ユニットが配置される前記内壁面に垂直な軸から傾斜するように配置される半導体発光素子と、前記半導体発光素子が照射する光を透過させる透過部を有するカバー部材とを備え、前記透過部は、前記光が入射される面に、前記光軸に垂直な入射面部を有する。 In order to achieve the above object, a refrigerator according to the present invention includes a main box having an opening on a front surface, and a light emitting unit that is disposed on an inner wall surface of the main box and irradiates light toward the main box. The light-emitting unit includes: a semiconductor light-emitting element disposed so that an optical axis of light to be irradiated is inclined from an axis perpendicular to the inner wall surface on which the light-emitting unit is disposed; and the semiconductor light-emitting element And a cover member having a transmission part that transmits the light irradiated by the light transmission unit, and the transmission part has an incident surface part perpendicular to the optical axis on a surface on which the light is incident.
　これによれば、半導体発光素子から照射される光の光軸が、カバー部材の入射面部に垂直になるように、当該光が入射される。ここで、カバー部材の表面に垂直に入射した光は、カバー部材によって反射されない。このため、半導体発光素子が傾いて配置されている場合でも、半導体発光素子から照射される光が、カバー部材によって反射されるのを低減することができるため、半導体発光素子から照射される光の照度を高めることができる。 According to this, the light is incident so that the optical axis of the light emitted from the semiconductor light emitting element is perpendicular to the incident surface portion of the cover member. Here, the light incident perpendicularly to the surface of the cover member is not reflected by the cover member. For this reason, even when the semiconductor light emitting element is inclined, the light emitted from the semiconductor light emitting element can be reduced from being reflected by the cover member, so that the light emitted from the semiconductor light emitting element can be reduced. Illuminance can be increased.
　また、好ましくは、前記透過部は、前記光が放出される面に、前記光を拡散させる曲面形状の放出面部を有する。 Preferably, the transmission part has a curved emission surface part for diffusing the light on a surface from which the light is emitted.
　これによれば、半導体発光素子から照射された光は、カバー部材の曲面形状の放出面部から拡散されて放出される。このため、当該光が拡散されて放出されるので、半導体発光素子から照射される光の照度を高めることができる。 According to this, the light irradiated from the semiconductor light emitting element is diffused and emitted from the curved emission surface portion of the cover member. For this reason, since the said light is diffused and discharge | released, the illumination intensity of the light irradiated from a semiconductor light-emitting element can be raised.
　また、好ましくは、前記カバー部材には、前側面に、厚み方向に延びる複数の溝が形成されている。 Preferably, a plurality of grooves extending in the thickness direction are formed on the front side surface of the cover member.
　これによれば、カバー部材には、前側面に、厚み方向に延びる複数の溝が形成されている。ここで、半導体発光素子から照射された光は、当該溝で反射され、前方へ拡散される。このため、カバー部材前方の照度も向上させることができる。 According to this, the cover member is formed with a plurality of grooves extending in the thickness direction on the front side surface. Here, the light irradiated from the semiconductor light emitting element is reflected by the groove and diffused forward. For this reason, the illumination intensity ahead of a cover member can also be improved.
　また、好ましくは、前記発光ユニットは、前記主箱体の上壁面又は側壁面に配置される。 Also preferably, the light emitting unit is disposed on an upper wall surface or a side wall surface of the main box.
　これによれば、発光ユニットは、主箱体の上壁面又は側壁面に配置される。このため、半導体発光素子から照射される光の光軸を、冷蔵庫の奥側へ向けることで、冷蔵庫の奥側に照射される光の照度を高めることができる。 According to this, the light emitting unit is arranged on the upper wall surface or the side wall surface of the main box. For this reason, the illumination intensity of the light irradiated to the back side of a refrigerator can be raised by directing the optical axis of the light irradiated from a semiconductor light-emitting element to the back side of a refrigerator.
　また、好ましくは、さらに、前記主箱体内方に、収容物が載置される棚板を備え、前記発光ユニットは、前記棚板の前方に配置される。 Also preferably, a shelf board is further provided on the inside of the main box inside the main box, and the light emitting unit is disposed in front of the shelf board.
　これによれば、発光ユニットは、棚板の前方に配置される。このため、棚板の上に載置されている収容物に、半導体発光素子からの光が照射されるため、当該収容物の視認性を向上することができる。 According to this, the light emitting unit is arranged in front of the shelf board. For this reason, since the light from a semiconductor light emitting element is irradiated to the accommodation mounted on the shelf board, the visibility of the said accommodation can be improved.
　本発明により、半導体発光素子が傾いて配置されている場合でも、半導体発光素子から照射される光の照度を高めることができる冷蔵庫を提供することができる。 According to the present invention, it is possible to provide a refrigerator capable of increasing the illuminance of light emitted from a semiconductor light emitting element even when the semiconductor light emitting element is disposed at an angle.
図１は、本発明の実施の形態における冷蔵庫の正面図である。FIG. 1 is a front view of the refrigerator in the embodiment of the present invention. 図２は、本発明の実施の形態における断熱扉が省略された冷蔵庫の上部の正面図である。FIG. 2 is a front view of the upper portion of the refrigerator in which the heat insulating door in the embodiment of the present invention is omitted. 図３は、本発明の実施の形態における冷蔵庫の上部の縦断面図である。FIG. 3 is a vertical cross-sectional view of the upper part of the refrigerator in the embodiment of the present invention. 図４は、本発明の実施の形態における発光ユニットの構成を説明する図である。FIG. 4 is a diagram illustrating the configuration of the light emitting unit in the embodiment of the present invention. 図５は、本発明の実施の形態におけるカバー部材を入射面部側から見た斜視図である。FIG. 5 is a perspective view of the cover member according to the embodiment of the present invention as viewed from the incident surface side. 図６は、本発明の実施の形態におけるカバー部材を放出面部側から見た斜視図である。FIG. 6 is a perspective view of the cover member according to the embodiment of the present invention as viewed from the discharge surface side.
　以下、本願発明に係る冷蔵庫の実施の形態について、図面を参照しながら説明する。 Hereinafter, embodiments of a refrigerator according to the present invention will be described with reference to the drawings.
　図１は、本発明の実施の形態における冷蔵庫１００の正面図である。 FIG. 1 is a front view of a refrigerator 100 according to an embodiment of the present invention.
　同図に示すように、本実施の形態にかかる冷蔵庫１００は、主箱体１０１内に複数に区画された貯蔵室を備えている。ここで、主箱体１０１は、前面に開口部を有する箱体であり、冷蔵庫１００の内方と外方との熱の出入りを遮断する断熱性能を備えている。 As shown in the figure, the refrigerator 100 according to the present embodiment includes a storage compartment partitioned into a plurality of sections in the main box 101. Here, the main box 101 is a box having an opening on the front surface, and is provided with a heat insulating performance that blocks heat from entering and exiting the inside and outside of the refrigerator 100.
　冷蔵庫１００の内の複数に区画された貯蔵室は、その機能（冷却温度）によって冷蔵室１０２、製氷室１０５、製氷室１０５に併設され庫内の温度が変更できる切換室１０６、野菜室１０４、および冷凍室１０３等と称される。 A plurality of compartments in the refrigerator 100 are divided into a refrigeration room 102, an ice making room 105, an ice making room 105 according to its function (cooling temperature), a switching room 106 in which the temperature in the warehouse can be changed, a vegetable room 104, Also referred to as the freezer compartment 103 or the like.
　冷蔵室１０２の前面開口部には、例えばウレタンのような発泡断熱材を発泡充填した回転式の断熱扉１０７が設けられている。 In the front opening of the refrigerator compartment 102, a rotary heat insulating door 107 filled with foam heat insulating material such as urethane is provided.
　また、製氷室１０５、切換室１０６、野菜室１０４、および冷凍室１０３の前面開口部にはそれぞれ断熱扉が設けられている。これら断熱扉により冷気の漏れがないように、各貯蔵室は密閉される。 In addition, heat insulating doors are provided at the front openings of the ice making room 105, the switching room 106, the vegetable room 104, and the freezing room 103, respectively. Each of the storage chambers is sealed so that there is no leakage of cold air by these heat insulating doors.
　図２は、本発明の実施の形態における断熱扉が省略された冷蔵庫１００の上部の正面図である。つまり、同図は、冷蔵室１０２の部分の正面図を示している。 FIG. 2 is a front view of the upper portion of the refrigerator 100 in which the heat insulating door in the embodiment of the present invention is omitted. That is, the figure shows a front view of the refrigerator compartment 102 portion.
　図３は、本発明の実施の形態における冷蔵庫１００の上部の縦断面図である。つまり、同図は、冷蔵室１０２の部分の縦断面図を示している。 FIG. 3 is a vertical cross-sectional view of the upper part of the refrigerator 100 in the embodiment of the present invention. That is, this figure shows a longitudinal sectional view of a portion of the refrigerator compartment 102.
　これらの図に示すように、冷蔵庫１００は、主箱体１０１の内方に、収容物が載置される棚板１１０を備えている。具体的には、冷蔵室１０２の内方に、平板状の樹脂製の５枚の棚板１１０が配置されている。なお、棚板１１０の数は５枚に限定されず、何枚であってもよい。 As shown in these drawings, the refrigerator 100 is provided with a shelf board 110 on the inner side of the main box body 101 on which things are placed. Specifically, five plate-like resin-made shelf boards 110 are arranged inside the refrigerator compartment 102. Note that the number of the shelf boards 110 is not limited to five, and may be any number.
　また、図３に示すように、冷蔵庫１００は、発光ユニット２００を備えている。 Further, as shown in FIG. 3, the refrigerator 100 includes a light emitting unit 200.
　発光ユニット２００は、主箱体１０１の内壁面に配置され、主箱体１０１内方に光を照射する装置である。なお、内壁面とは、主箱体１０１の天井面、側壁面、奥壁面及び床面のうちのいずれかであり、ここでは、天井面である。具体的には、発光ユニット２００は、主箱体１０１の天井面の上壁面部１０１ａであって、棚板１１０の前方に配置されている。 The light emitting unit 200 is a device that is arranged on the inner wall surface of the main box body 101 and irradiates light inside the main box body 101. The inner wall surface is any one of the ceiling surface, the side wall surface, the back wall surface, and the floor surface of the main box 101, and here is the ceiling surface. Specifically, the light emitting unit 200 is arranged on the upper wall surface portion 101 a of the ceiling surface of the main box body 101 and in front of the shelf board 110.
　つまり、発光ユニット２００は、主箱体１０１の上壁面部１０１ａに形成された凹部の中に配置されている。また、発光ユニット２００は、棚板１１０の先端位置（同図に示される位置Ｐ）よりも前方（冷蔵庫１００の前側方向）に配置されている。 That is, the light emitting unit 200 is disposed in a recess formed in the upper wall surface portion 101a of the main box body 101. Further, the light emitting unit 200 is disposed in front of the shelf plate 110 (the position P shown in the figure) in the front (front direction of the refrigerator 100).
　次に、発光ユニット２００の詳細な構成について、説明する。 Next, the detailed configuration of the light emitting unit 200 will be described.
　図４は、本発明の実施の形態における発光ユニット２００の構成を説明する図である。 FIG. 4 is a diagram illustrating the configuration of the light emitting unit 200 in the embodiment of the present invention.
　同図に示すように、発光ユニット２００は、半導体発光素子２１０及びカバー部材２２０を備えている。 As shown in the figure, the light emitting unit 200 includes a semiconductor light emitting element 210 and a cover member 220.
　半導体発光素子２１０は、光を発生させ、冷蔵室１０２の内方に向けて光を放射する発光素子である。ここでは、半導体発光素子２１０は、ＬＥＤ（Ｌｉｇｈｔ　Ｅｍｉｔｔｉｎｇ　Ｄｉｏｄｅ）であるが、光を発光できるものであればＬＥＤには限定されない。 The semiconductor light emitting element 210 is a light emitting element that generates light and emits light toward the inside of the refrigerator compartment 102. Here, the semiconductor light emitting element 210 is an LED (Light Emitting Diode), but is not limited to an LED as long as it can emit light.
　また、半導体発光素子２１０は、照射する光の光軸が、発光ユニット２００が配置される上壁面部１０１ａに垂直な軸から傾斜するように、配置されている。 Further, the semiconductor light emitting element 210 is arranged so that the optical axis of the irradiated light is inclined from the axis perpendicular to the upper wall surface portion 101a where the light emitting unit 200 is arranged.
　具体的には、同図に示すように、半導体発光素子２１０から照射される光の光軸は、光軸Ａである。また、上壁面部１０１ａに垂直な軸は、法線Ｑである。そして、光軸Ａは、法線Ｑから傾斜している。 Specifically, as shown in the figure, the optical axis of the light emitted from the semiconductor light emitting element 210 is the optical axis A. The axis perpendicular to the upper wall surface portion 101a is the normal line Q. The optical axis A is inclined from the normal line Q.
　カバー部材２２０は、半導体発光素子２１０の前方（光が照射される方向）を覆う平板状の樹脂製のカバーである。カバー部材２２０は、透過部２２１及び溝部２２２を備えている。 The cover member 220 is a flat resin cover that covers the front of the semiconductor light emitting element 210 (the direction in which light is irradiated). The cover member 220 includes a transmission part 221 and a groove part 222.
　透過部２２１は、カバー部材２２０の中央部分に備えられ、半導体発光素子２１０が照射する光を透過させる部位である。透過部２２１は、半導体発光素子２１０が照射する光が入射される面に、入射面部２２１ａを備え、半導体発光素子２１０が照射する光が放出される面に、放出面部２２１ｂを備えている。 The transmission part 221 is a part that is provided in the central part of the cover member 220 and transmits light emitted from the semiconductor light emitting element 210. The transmission part 221 includes an incident surface part 221a on a surface on which light emitted from the semiconductor light emitting element 210 is incident, and an emission surface part 221b on a surface on which light emitted from the semiconductor light emitting element 210 is emitted.
　なお、カバー部材２２０の放出面部２２１ｂ以外の表面は、放出面部２２１ｂとは異なる形状であって光を乱反射させる凹凸形状（図示せず）で形成されており、これにより、放出面部２２１ｂ以外の表面から放出される光も当該凸凹形状の表面で乱反射して、庫内を万遍なく照明する。 Note that the surface of the cover member 220 other than the emission surface portion 221b has a different shape from the emission surface portion 221b and has an uneven shape (not shown) that diffusely reflects light. The light emitted from the light is irregularly reflected on the uneven surface, and the interior is illuminated uniformly.
　図５は、本発明の実施の形態におけるカバー部材２２０を入射面部２２１ａ側から見た斜視図である。 FIG. 5 is a perspective view of the cover member 220 according to the embodiment of the present invention as viewed from the incident surface portion 221a side.
　図４及び図５に示すように、入射面部２２１ａは、透過部２２１の半導体発光素子２１０と向かい合った側の面に配置される面部である。そして、入射面部２２１ａは、半導体発光素子２１０から照射される光の光軸に垂直な平面形状の面部である。つまり、図４に示すように、半導体発光素子２１０から照射される光の光軸Ａは、入射面部２２１ａと直交している。 As shown in FIGS. 4 and 5, the incident surface portion 221 a is a surface portion disposed on the surface of the transmission portion 221 facing the semiconductor light emitting element 210. The incident surface portion 221a is a planar surface portion perpendicular to the optical axis of the light emitted from the semiconductor light emitting element 210. That is, as shown in FIG. 4, the optical axis A of the light emitted from the semiconductor light emitting element 210 is orthogonal to the incident surface portion 221a.
　なお、入射面部２２１ａの形状は、平面形状に限定されず、例えば、半導体発光素子２１０からの距離が等距離になるように、凹状の曲面形状になっていてもよい。 Note that the shape of the incident surface portion 221a is not limited to a planar shape, and may be, for example, a concave curved surface shape so that the distance from the semiconductor light emitting element 210 is equal.
　図６は、本発明の実施の形態におけるカバー部材２２０を放出面部２２１ｂ側から見た斜視図である。 FIG. 6 is a perspective view of the cover member 220 in the embodiment of the present invention as viewed from the discharge surface portion 221b side.
　図４及び図６に示すように、放出面部２２１ｂは、透過部２２１の入射面部２２１ａと対応する側の面に配置される面部である。そして、放出面部２２１ｂは、半導体発光素子２１０から照射される光を拡散させる曲面形状の面部である。具体的には、放出面部２２１ｂは、カバー部材２２０の中央部から突起するように、凸状の曲面形状になっている。 As shown in FIGS. 4 and 6, the emission surface portion 221b is a surface portion disposed on the surface of the transmission portion 221 corresponding to the incident surface portion 221a. The emission surface portion 221b is a curved surface portion that diffuses light emitted from the semiconductor light emitting element 210. Specifically, the discharge surface portion 221 b has a convex curved surface shape so as to protrude from the center portion of the cover member 220.
　また、図４及び図６に示すように、溝部２２２は、カバー部材２２０の前側面に形成されている、カバー部材２２０の厚み方向に延びる溝である。そして、カバー部材２２０の前側面には、複数の溝部２２２が形成されている。つまり、カバー部材２２０の前側面には、複数の溝部２２２によって、厚み方向に延びる複数の突起部が形成されている。 As shown in FIGS. 4 and 6, the groove 222 is a groove formed in the front side surface of the cover member 220 and extending in the thickness direction of the cover member 220. A plurality of groove portions 222 are formed on the front side surface of the cover member 220. That is, a plurality of protrusions extending in the thickness direction are formed on the front side surface of the cover member 220 by the plurality of groove portions 222.
　以上のように、本発明に係る冷蔵庫１００によれば、半導体発光素子２１０から照射される光の光軸が、カバー部材２２０の入射面部２２１ａに垂直になるように、当該光が入射される。ここで、カバー部材２２０の表面に垂直に入射した光は、カバー部材２２０によって反射されない。このため、半導体発光素子２１０が傾いて配置されている場合でも、半導体発光素子２１０から照射される光が、カバー部材２２０によって反射されるのを低減することができるため、半導体発光素子２１０から照射される光の照度を高めることができる。 As described above, according to the refrigerator 100 according to the present invention, the light is incident so that the optical axis of the light emitted from the semiconductor light emitting element 210 is perpendicular to the incident surface portion 221a of the cover member 220. Here, the light incident perpendicularly on the surface of the cover member 220 is not reflected by the cover member 220. For this reason, even when the semiconductor light emitting element 210 is tilted, the light emitted from the semiconductor light emitting element 210 can be reduced from being reflected by the cover member 220. The illuminance of the emitted light can be increased.
　また、半導体発光素子２１０から照射された光は、カバー部材２２０の曲面形状の放出面部２２１ｂから拡散されて放出される。このため、当該光が拡散されて放出されるので、半導体発光素子２１０から照射される光の照度を高めることができる。 Also, the light emitted from the semiconductor light emitting element 210 is diffused and emitted from the curved emission surface portion 221b of the cover member 220. For this reason, since the said light is diffused and discharge | released, the illumination intensity of the light irradiated from the semiconductor light-emitting element 210 can be raised.
　また、カバー部材２２０には、前側面に、厚み方向に延びる複数の溝部２２２が形成されている。ここで、半導体発光素子２１０から照射された光は、当該溝部２２２で反射され、前方へ拡散される。このため、カバー部材２２０前方の照度も向上させることができる。 Also, the cover member 220 has a plurality of grooves 222 extending in the thickness direction on the front side surface. Here, the light emitted from the semiconductor light emitting element 210 is reflected by the groove 222 and diffused forward. For this reason, the illumination intensity ahead of the cover member 220 can also be improved.
　また、発光ユニット２００は、主箱体１０１の上壁面又は側壁面に配置される。このため、半導体発光素子２１０から照射される光の光軸を、冷蔵庫１００の奥側へ向けることで、冷蔵庫１００の奥側に照射される光の照度を高めることができる。 Further, the light emitting unit 200 is disposed on the upper wall surface or the side wall surface of the main box body 101. For this reason, the illuminance of the light irradiated to the back side of the refrigerator 100 can be increased by directing the optical axis of the light irradiated from the semiconductor light emitting element 210 to the back side of the refrigerator 100.
　また、発光ユニット２００は、棚板１１０の前方に配置される。このため、棚板１１０の上に載置されている収容物に、半導体発光素子２１０からの光が照射されるため、当該収容物の視認性を向上することができる。 Further, the light emitting unit 200 is disposed in front of the shelf board 110. For this reason, since the light from the semiconductor light emitting element 210 is irradiated to the accommodations placed on the shelf board 110, the visibility of the accommodations can be improved.
　以上、本発明に係る冷蔵庫について、上記実施の形態を用いて説明したが、本発明は、これに限定されるものではない。 As mentioned above, although the refrigerator concerning the present invention was explained using the above-mentioned embodiment, the present invention is not limited to this.
　つまり、今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて請求の範囲によって示され、請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。 That is, the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
　例えば、本実施の形態では、発光ユニット２００は、主箱体１０１の天井面に配置されていることとした。しかし、発光ユニット２００が配置される壁面は特に限定されず、例えば、発光ユニット２００は、主箱体１０１の側壁面に配置されることにしてもよい。例えば、図２に示された冷蔵室１０２の側壁に、発光ユニット２００が配置されていても構わない。この場合でも、半導体発光素子２１０から照射される光の光軸を、冷蔵庫１００の奥側へ向けることで、冷蔵庫１００の奥側に照射される光の照度を高めることができる。また、発光ユニット２００は、主箱体１０１の奥壁面又は床面に配置されることにしてもよい。 For example, in the present embodiment, the light emitting unit 200 is arranged on the ceiling surface of the main box body 101. However, the wall surface on which the light emitting unit 200 is disposed is not particularly limited. For example, the light emitting unit 200 may be disposed on the side wall surface of the main box body 101. For example, the light emitting unit 200 may be arranged on the side wall of the refrigerator compartment 102 shown in FIG. Even in this case, the illuminance of the light irradiated on the back side of the refrigerator 100 can be increased by directing the optical axis of the light irradiated from the semiconductor light emitting element 210 toward the back side of the refrigerator 100. Further, the light emitting unit 200 may be disposed on the inner wall surface or floor surface of the main box body 101.
　また、本実施の形態では、カバー部材２２０の形状及び材質は、平板状の樹脂製であることとしたが、カバー部材２２０の形状及び材質は限定されない。つまり、カバー部材２２０の材質は、半導体発光素子２１０が照射する光を透過させることができれば、どのような材質であってもよい。また、カバー部材２２０の形状については、透過部２２１及び溝部２２２以外の部分は、どのような形状であっても構わない。 In the present embodiment, the shape and material of the cover member 220 are made of a flat resin, but the shape and material of the cover member 220 are not limited. That is, the material of the cover member 220 may be any material as long as the light emitted from the semiconductor light emitting element 210 can be transmitted. Further, the shape of the cover member 220 may be any shape other than the transmission part 221 and the groove part 222.
　また、本実施の形態では、放出面部２２１ｂの形状は、曲面形状であることとした。しかし、放出面部２２１ｂの形状は、曲面形状に限定されず、例えば、入射面部２２１ａに平行な平面形状であってもよい。 In the present embodiment, the shape of the discharge surface portion 221b is a curved surface shape. However, the shape of the emission surface portion 221b is not limited to a curved surface shape, and may be, for example, a planar shape parallel to the incident surface portion 221a.
　また、本実施の形態では、カバー部材２２０の前側面には、複数の溝部２２２が形成されていることとした。しかし、カバー部材２２０には、溝部２２２は形成されていないことにしてもよい。 In the present embodiment, a plurality of grooves 222 are formed on the front side surface of the cover member 220. However, the cover member 220 may not have the groove 222 formed therein.
　また、本実施の形態では、発光ユニット２００は、棚板１１０の前方に配置されていることとした。しかし、発光ユニット２００の前後方向の配置位置は特に限定されず、例えば、冷蔵庫１００の奥側に配置され、当該奥側を明るく照らす照明として使用されることにしても構わない。 Further, in the present embodiment, the light emitting unit 200 is disposed in front of the shelf board 110. However, the arrangement position of the light emitting unit 200 in the front-rear direction is not particularly limited. For example, the light emitting unit 200 may be arranged on the back side of the refrigerator 100 and used as illumination that illuminates the back side.
　本発明は、冷蔵庫に利用可能である。 The present invention can be used for a refrigerator.
　　１００　　冷蔵庫
　　１０１　　主箱体
　　１０１ａ　上壁面部
　　１０２　　冷蔵室
　　１０３　　冷凍室
　　１０４　　野菜室
　　１０５　　製氷室
　　１０６　　切換室
　　１０７　　断熱扉
　　１１０　　棚板
　　２００　　発光ユニット
　　２１０　　半導体発光素子
　　２２０　　カバー部材
　　２２１　　透過部
　　２２１ａ　入射面部
　　２２１ｂ　放出面部
　　２２２　　溝部 DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Main box body 101a Upper wall surface part 102 Refrigeration room 103 Freezing room 104 Vegetable room 105 Ice making room 106 Switching room 107 Thermal insulation door 110 Shelf board 200 Light emitting unit 210 Semiconductor light emitting element 220 Cover member 221 Transmission part 221a Incident surface part 221b Emission surface part 222 Groove

Claims (5)

  1. 　前面に開口部を有する主箱体と、前記主箱体の内壁面に配置され前記主箱体内方に光を照射する発光ユニットとを備える冷蔵庫であって、
    　前記発光ユニットは、
    　照射する光の光軸が、前記発光ユニットが配置される前記内壁面に垂直な軸から傾斜するように配置される半導体発光素子と、
    　前記半導体発光素子が照射する光を透過させる透過部を有するカバー部材とを備え、
    　前記透過部は、前記光が入射される面に、前記光軸に垂直な入射面部を有する
    　冷蔵庫。     A refrigerator comprising a main box having an opening on the front surface, and a light emitting unit disposed on an inner wall surface of the main box to irradiate light toward the inside of the main box,
    The light emitting unit is
    A semiconductor light emitting element disposed so that an optical axis of light to be irradiated is inclined from an axis perpendicular to the inner wall surface on which the light emitting unit is disposed;
    A cover member having a transmission part that transmits the light irradiated by the semiconductor light emitting element,
    The transmissive portion has an incident surface portion perpendicular to the optical axis on a surface on which the light is incident.
  2. 　前記透過部は、前記光が放出される面に、前記光を拡散させる曲面形状の放出面部を有する
    　請求項１に記載の冷蔵庫。     The refrigerator according to claim 1, wherein the transmissive portion has a curved emission surface portion that diffuses the light on a surface from which the light is emitted.
  3. 　前記カバー部材には、前側面に、厚み方向に延びる複数の溝が形成されている
    　請求項１又は２に記載の冷蔵庫。     The refrigerator according to claim 1 or 2, wherein a plurality of grooves extending in a thickness direction are formed on the front side surface of the cover member.
  4. 　前記発光ユニットは、前記主箱体の上壁面又は側壁面に配置される
    　請求項１～３のいずれか１項に記載の冷蔵庫。     The refrigerator according to any one of claims 1 to 3, wherein the light emitting unit is disposed on an upper wall surface or a side wall surface of the main box.
  5. 　さらに、前記主箱体内方に、収容物が載置される棚板を備え、
    　前記発光ユニットは、前記棚板の前方に配置される
    　請求項１～４のいずれか１項に記載の冷蔵庫。     In addition, a shelf on which the contents are placed is provided in the main box,
    The refrigerator according to any one of claims 1 to 4, wherein the light emitting unit is disposed in front of the shelf board.
PCT/JP2011/000851 2010-02-26 2011-02-16 Refrigerator WO2011105026A1 (en)

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JP2010-043215 2010-02-26
JP2011022298A JP2011196674A (en) 2010-02-26 2011-02-04 Refrigerator
JP2011-022298 2011-02-04

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JP2014156983A (en) * 2013-02-18 2014-08-28 Mitsubishi Electric Corp Refrigerator and lighting device
EP2594880A3 (en) * 2011-11-18 2017-01-18 Lg Electronics Inc. Refrigerator
JP2017023523A (en) * 2015-07-24 2017-02-02 パナソニックＩｐマネジメント株式会社 Drum type washing machine
WO2018123338A1 (en) * 2016-12-28 2018-07-05 パナソニックＩｐマネジメント株式会社 Refrigerator
EP4184053A1 (en) * 2021-11-22 2023-05-24 Self Electronics Co., Ltd. Lamp for use in a display cabinet and display cabinet thereof

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JP6143924B2 (en) * 2016-07-07 2017-06-07 三菱電機エンジニアリング株式会社 Storage and electronic refrigerator
JP6463409B2 (en) * 2017-06-05 2019-01-30 三菱電機エンジニアリング株式会社 Storage and electronic refrigerator

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EP2594880A3 (en) * 2011-11-18 2017-01-18 Lg Electronics Inc. Refrigerator
JP2014156983A (en) * 2013-02-18 2014-08-28 Mitsubishi Electric Corp Refrigerator and lighting device
JP2017023523A (en) * 2015-07-24 2017-02-02 パナソニックＩｐマネジメント株式会社 Drum type washing machine
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EP4184053A1 (en) * 2021-11-22 2023-05-24 Self Electronics Co., Ltd. Lamp for use in a display cabinet and display cabinet thereof

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