JP2021196142A

JP2021196142A - Heat insulation door and freezing and chilling apparatus

Info

Publication number: JP2021196142A
Application number: JP2020104617A
Authority: JP
Inventors: 麻理内田; Mari Uchida; 良二河井; Ryoji Kawai; 洋平丹野; Yohei Tanno; 貴之平子; Takayuki Hirako
Original assignee: Hitachi Global Life Solutions Inc
Current assignee: Hitachi Global Life Solutions Inc
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-12-27

Abstract

To provide a heat insulation door that can improve heat insulation performance, and to provide a freezing and chilling apparatus.SOLUTION: A heat insulation door 200 includes: an inner plate 201; an outer plate 204 in which at least principal surfaces 201M, 204M oppose to each other while being separated from each other relative to the inner plate 201; partition members 212-216 arranged between the inner plate 201 and the outer plate 204; and support members 210, 211 for supporting the partition members 212-216. The support members 210, 211 support the partition members 212-216 while having a margin relative to extension and contraction of the partition members 212-216.SELECTED DRAWING: Figure 2A

Description

本発明は、断熱扉及び冷凍冷蔵機器に関する。 The present invention relates to a heat insulating door and a freezing / refrigerating device.

発泡ウレタン等の断熱材を用いず、複数に仕切ったガス層で構成された断熱壁の背景技術として、特許文献１では、「透明フィルムの外周を内枠で支持した透明フィルム枠体を複数個積層することにより、複数個の断熱層としての密閉空間を形成」と記載されている。
また、特許文献２では、「支持枠体の一辺及びこれと対向する他辺部に夫々複数形設した段部に順次固定具を、夫々熱反射膜を押さえ且つ該熱反射膜を伸張させつつ圧入することによって、支持枠体内を複数層に仕切り、その各層に期待を封じ込める様にし、以って熱反射を順次緊張させながら多層にして断熱多層パネルを製造」と記載されている。 As a background technology for a heat insulating wall composed of a plurality of gas layers without using a heat insulating material such as urethane foam, Patent Document 1 states that "a plurality of transparent film frames in which the outer periphery of the transparent film is supported by an inner frame are provided. By laminating, a closed space as a plurality of heat insulating layers is formed. "
Further, in Patent Document 2, "a fixture is sequentially formed on one side of the support frame and on the other side facing the support frame, respectively, while holding down the heat-reflecting film and extending the heat-reflecting film. By press-fitting, the inside of the support frame is divided into a plurality of layers so that expectations can be contained in each layer, and thus heat reflection is sequentially tensioned to form multiple layers to manufacture a heat insulating multi-layer panel. "

特開平３−１８３８８６号公報Japanese Unexamined Patent Publication No. 3-183886 特公昭６３−３５９１０号公報Special Publication No. 63-35910

前記特許文献１，２に開示の技術では、低温側に配置された透明フィルム或いは熱反射膜の低温による収縮、高温側に配置された透明フィルム或いは熱反射膜の高温による膨張が考慮されていない。このため、熱変形による透明フィルム或いは熱反射膜同士の接触や、破壊により断熱性能が低下する可能性がある。 The techniques disclosed in Patent Documents 1 and 2 do not take into consideration the shrinkage of the transparent film or heat reflective film arranged on the low temperature side due to low temperature and the expansion of the transparent film or heat reflective film arranged on the high temperature side due to high temperature. .. Therefore, there is a possibility that the heat insulating performance may be deteriorated due to contact or breakage between the transparent films or the heat reflecting films due to thermal deformation.

本発明は、内板と、該内板に対して少なくとも主面が離間して対向する外板と、前記内板と前記外板との間に配された仕切り部材と、前記仕切り部材を支持する支持部材と、を備え、前記支持部材は、前記仕切り部材の伸縮に対して余裕を有して当該仕切り部材を支持することを特徴とする断熱扉である。 The present invention supports an inner plate, an outer plate whose main surface is at least separated from the inner plate and faces the inner plate, a partition member arranged between the inner plate and the outer plate, and the partition member. The support member is a heat insulating door comprising a support member for supporting the partition member with a margin for expansion and contraction of the partition member.

本発明の実施形態１にかかる冷蔵庫の正面図である。It is a front view of the refrigerator which concerns on Embodiment 1 of this invention. 図１のＡ−Ａ断面図で示した本発明の実施例１にかかる断熱扉の断面図である。FIG. 3 is a cross-sectional view of a heat insulating door according to a first embodiment of the present invention shown in the cross-sectional view taken along the line AA of FIG. 本発明の実施例１の変形例を示す支持部材の部分拡大断面図である。It is a partially enlarged sectional view of the support member which shows the modification of Example 1 of this invention. 図１のＢ−Ｂ断面図で示した本発明の実施例２にかかる断熱扉の断面図である。FIG. 3 is a cross-sectional view of a heat insulating door according to a second embodiment of the present invention shown in the cross-sectional view taken along the line BB of FIG. 図１のＢ−Ｂ断面図で示した本発明の実施例３にかかる断熱扉の断面図である。FIG. 3 is a cross-sectional view of a heat insulating door according to a third embodiment of the present invention shown in the cross-sectional view taken along the line BB of FIG. 本発明の実施例３の変形例を示す支持部材の部分拡大断面図である。It is a partially enlarged sectional view of the support member which shows the modification of Example 3 of this invention. 図１のＡ−Ａ断面図で示した本発明の実施例４にかかる断熱扉の断面図である。FIG. 3 is a cross-sectional view of a heat insulating door according to a fourth embodiment of the present invention shown in the cross-sectional view taken along the line AA of FIG. 図１のＢ−Ｂ断面図で示した本発明の実施例５にかかる断熱扉の断面図である。It is sectional drawing of the heat insulating door which concerns on Example 5 of this invention shown in the sectional view of BB of FIG. 図１のＡ−Ａ断面図で示した本発明の実施例６にかかる断熱扉の断面図である。FIG. 3 is a cross-sectional view of a heat insulating door according to a sixth embodiment of the present invention shown in the cross-sectional view taken along the line AA of FIG.

以下、本発明の実施例について図面を用いて複数例説明する。各図面には適宜ＸＹＺ方向を図示している。冷蔵庫から視てＺ方向が前後方向、Ｙ方向が上下方向、Ｘ方向が左右方向である。 Hereinafter, a plurality of examples of the present invention will be described with reference to the drawings. The XYZ directions are appropriately shown in each drawing. When viewed from the refrigerator, the Z direction is the front-rear direction, the Y direction is the vertical direction, and the X direction is the left-right direction.

図１は、本発明の実施例１にかかる冷蔵庫の正面図である。冷蔵庫１００は、本発明の冷凍冷蔵機器の一実施例である。本発明の冷凍冷蔵機器は、冷蔵庫及び冷凍庫の少なくとも一方を備えていればよい。本例の冷蔵庫１００は、これらの両方を備えている例である。冷蔵庫１００は、冷蔵室左扉１０１、冷蔵室右扉１０２、製氷室扉１０３、急速冷凍室扉１０４、冷凍室扉１０５及び野菜室扉１０６を備えている。冷蔵室左扉１０１と冷蔵室右扉１０２は，それぞれ左端上下、右端上下に設けられたヒンジ（図示せず）により、Ｙ軸周りに回動可能になっている。製氷室扉１０３、急速冷凍室扉１０４、冷凍室扉１０５及び野菜室扉１０６には、それぞれに引出レール（図１において図示せず）が設けられており、Ｚ方向に引出可能になっている。この他、冷蔵庫１００の内部には、棚、配管、冷却機器類等が設置されている。 FIG. 1 is a front view of the refrigerator according to the first embodiment of the present invention. The refrigerator 100 is an embodiment of the freezing and refrigerating equipment of the present invention. The freezing and refrigerating equipment of the present invention may include at least one of a refrigerator and a freezer. The refrigerator 100 of this example is an example including both of these. The refrigerator 100 includes a refrigerating room left door 101, a refrigerating room right door 102, an ice making room door 103, a rapid freezing room door 104, a freezing room door 105, and a vegetable room door 106. The refrigerating room left door 101 and the refrigerating room right door 102 can be rotated around the Y axis by hinges (not shown) provided at the upper and lower left ends and the upper and lower sides of the right end, respectively. The ice making room door 103, the quick freezing room door 104, the freezing room door 105, and the vegetable room door 106 are each provided with a drawer rail (not shown in FIG. 1) so that they can be pulled out in the Z direction. .. In addition, shelves, pipes, cooling equipment and the like are installed inside the refrigerator 100.

ところで、家庭用冷蔵庫では、省エネ性能や低製造コストが求められている。既存の冷蔵庫の扉内部には、一般的に発泡ウレタンが充填されている。断熱性の高い発泡ウレタンによって、冷蔵庫内から庫外に冷気が漏洩するのを防止している。また、発泡ウレタンで扉を構成し、内板や外板を一体化することによって、扉の剛性を確保している。しかしながら、扉内部に発泡ウレタンを充填するには、ウレタンが扉外部に漏洩するのを防止したり、ウレタンの発泡圧により扉の構成部材が変形するのを防止したりするために、特殊な治具や工程が必要となり、それが冷蔵庫の製造コスト増加につながる一因となり得る。また、ウレタンの発泡の際に用いられる発泡剤による環境問題が議論されている。 By the way, energy-saving performance and low manufacturing cost are required for household refrigerators. The inside of the door of an existing refrigerator is generally filled with urethane foam. Urethane foam with high heat insulation prevents cold air from leaking from inside the refrigerator to the outside. In addition, the rigidity of the door is ensured by constructing the door with urethane foam and integrating the inner and outer plates. However, in order to fill the inside of the door with urethane foam, a special cure is used to prevent the urethane from leaking to the outside of the door and to prevent the components of the door from being deformed by the foaming pressure of the urethane. Ingredients and processes are required, which can contribute to an increase in the manufacturing cost of urethane. In addition, environmental problems due to the foaming agent used when foaming urethane are being discussed.

そこで、発泡ウレタン等の断熱材を用いず、複数に仕切ったガス層で構成された断熱壁の背景技術として、前記特許文献１では、「透明フィルムの外周を内枠で支持した透明フィルム枠体を複数個積層することにより、複数個の断熱層としての密閉空間を形成」と記載されている。
また、前記特許文献２では、「支持枠体の一辺及びこれと対向する他辺部に夫々複数形設した段部に順次固定具を、夫々熱反射膜を押さえ且つ該熱反射膜を伸張させつつ圧入することによって、支持枠体内を複数層に仕切り、その各層に期待を封じ込める様にし、以って熱反射を順次緊張させながら多層にして断熱多層パネルを製造」と記載されている。 Therefore, as a background technique for a heat insulating wall composed of a plurality of gas layers without using a heat insulating material such as urethane foam, in Patent Document 1, "a transparent film frame body in which the outer periphery of the transparent film is supported by an inner frame" is used. By stacking a plurality of layers, a closed space as a plurality of heat insulating layers is formed. "
Further, in Patent Document 2, "a fixture is sequentially formed on one side of the support frame and a plurality of steps on the other side facing the support frame, respectively, and the heat-reflecting film is pressed and the heat-reflecting film is stretched. By press-fitting while press-fitting, the inside of the support frame is divided into multiple layers so that expectations can be contained in each layer, and thus heat reflection is sequentially tensioned to form multiple layers to manufacture a heat-insulating multilayer panel. "

しかし、特許文献１及び特許文献２の構成では、空間を多層に仕切ることで断熱性能を確保しているが、低温側に配置された透明フィルム或いは熱反射膜の低温による収縮、高温側に配置された透明フィルム或いは熱反射膜の高温による膨張が考慮されていない。このため、熱変形による透明フィルム或いは熱反射膜同士の接触や、破壊により断熱性能が低下する可能性がある。
そこで、本実施例では、断熱性能を高めることができる断熱扉及び冷凍冷蔵機器を提供することを課題とし、その内容について以下に説明する。 However, in the configurations of Patent Document 1 and Patent Document 2, although the heat insulating performance is ensured by partitioning the space into multiple layers, the transparent film or heat reflective film arranged on the low temperature side shrinks due to low temperature and is arranged on the high temperature side. Expansion due to high temperature of the transparent film or heat reflective film is not taken into consideration. Therefore, there is a possibility that the heat insulating performance may be deteriorated due to contact or breakage between the transparent films or the heat reflecting films due to thermal deformation.
Therefore, in the present embodiment, it is an object to provide a heat insulating door and a freezing / refrigerating device capable of enhancing the heat insulating performance, and the contents thereof will be described below.

図１に示す前記各扉で開閉できる各冷凍室又は冷蔵室は、本発明の断熱室を構成し、各扉は本発明の断熱扉を構成するが、下記に説明する断熱室、断熱扉は製氷室、製氷室扉１０３の例である。 Each freezing room or refrigerating room that can be opened and closed by each of the doors shown in FIG. 1 constitutes the heat insulating room of the present invention, and each door constitutes the heat insulating door of the present invention. This is an example of an ice making chamber and an ice making chamber door 103.

図２Ａは、図１のＡ−Ａ断面図で示した本発明の実施例１にかかる断熱扉の断面図である。断熱扉２００は、断熱室（図示しない製氷室）の庫外側に設けられた外板２０１、断熱室の上側に設けられた上板２０２、断熱室の下側に設けられた下板２０３、外板２０１に対して離間しており断熱室の庫内側に設けられた内板２０４、引出レール２０７が設けられている。ここでいう外板２０１と内板２０４の離間とは、外板２０１と内板２０４の主面２０１Ｍ，２０４Ｍ同士が離間していることを指す。例えば、上板２０２や下板２０３が外板２０１又は内板２０４の一方と一体形成されていて他方に接触しているような場合であっても、外板２０１と内板２０４とは離間している趣旨である。
図２には図示していないが、断熱扉２００には、Ｙ−Ｚ面に平行な左板と右板が設けられ、外板２０１、上板２０２、下板２０３、内板２０４、左板、右板が接合され、その内部に空間２２０が形成されている。なお、外板２０１、上板２０２、下板２０３、内板２０４、左板、右板の各板は一体成型されていてもよい。内板２０４と引出レール２０７は、ねじ２０９（符号２０８がねじ頭）により接合されている。庫内側部材の一例である引出レール２０７は、断熱室に収納される容器を支持するものであり、内板２０４側に取付けられる。 FIG. 2A is a cross-sectional view of the heat insulating door according to the first embodiment of the present invention shown in the cross-sectional view taken along the line AA of FIG. The heat insulating door 200 includes an outer plate 201 provided on the outside of the heat insulating chamber (ice making chamber (not shown)), an upper plate 202 provided on the upper side of the heat insulating chamber, a lower plate 203 provided on the lower side of the heat insulating chamber, and an outside. An inner plate 204 and a drawer rail 207, which are separated from the plate 201 and are provided inside the heat insulating chamber, are provided. The term "separation between the outer plate 201 and the inner plate 204" as used herein means that the main surfaces 201M and 204M of the outer plate 201 and the inner plate 204 are separated from each other. For example, even when the upper plate 202 or the lower plate 203 is integrally formed with one of the outer plate 201 or the inner plate 204 and is in contact with the other, the outer plate 201 and the inner plate 204 are separated from each other. It is the purpose of doing.
Although not shown in FIG. 2, the heat insulating door 200 is provided with a left plate and a right plate parallel to the YZ plane, and has an outer plate 201, an upper plate 202, a lower plate 203, an inner plate 204, and a left plate. , The right plate is joined, and a space 220 is formed inside the right plate. The outer plate 201, the upper plate 202, the lower plate 203, the inner plate 204, the left plate, and the right plate may be integrally molded. The inner plate 204 and the drawer rail 207 are joined by a screw 209 (reference numeral 208 is a screw head). The drawer rail 207, which is an example of the inner cabinet member, supports the container housed in the heat insulating chamber and is attached to the inner plate 204 side.

外板２０１と内板２０４との間には、これらの間の空間２２０を仕切る板状の仕切り部材２１２〜２１６が内板２０４及び外板２０１の離間方向に間隔を空けて複数設けられており互いに所定の間隔を空けて配置されている。仕切り部材２１２〜２１６は、外板２０１、内板２０４と板幅方向が略平行な例えば板状部材である。仕切り部材はそれぞれ、支持部材である支持部材２１０，２１１によって図２Ａ中下端縁部と上部が支持されている。具体的には、下板２０３、左板、右板に取り付けられた支持部材２１０は板状部材であり、支持部材２１０に形成された溝部２１０ａ〜２１０ｅにそれぞれ仕切り部材２１２〜２１６の下端縁部が挿入されて溝部２１０ａ〜２１０ｅによって仕切り部材２１２〜２１６が支持されている。また、上板２０２、左板、右板に取り付けられた支持部材２１１も板状部材であり、支持部材２１１を貫通した孔２１１ａ〜２１１ｅに仕切り部材２１２〜２１６の上部が挿通していて、孔２１１ａ〜２１１ｅによって仕切り部材２１２〜２１６が支持されている。なお、仕切り部材２１５，２１６は上下方向のサイズが大きく、孔２１１ｄ，２１１ｅを突き抜けて空間２２０内の上部に延びている。仕切り部材２１２〜２１６自体、また、仕切り部材２１２〜２１６で仕切られた空間２２０も断熱材として機能する。溝部２１０ａ〜２１０ｅはそれぞれ、非貫通の凹状に限定する趣旨ではなく、貫通の孔であってもよい趣旨である。 A plurality of plate-shaped partitioning members 212 to 216 for partitioning the space 220 between the outer plate 201 and the inner plate 204 are provided at intervals in the separating direction between the inner plate 204 and the outer plate 201. They are arranged at a predetermined distance from each other. The partition members 212 to 216 are, for example, plate-shaped members whose plate width direction is substantially parallel to the outer plate 201 and the inner plate 204. The partition members are supported by support members 210 and 211, which are support members, at the lower middle edge portion and the upper portion of FIG. 2A, respectively. Specifically, the support member 210 attached to the lower plate 203, the left plate, and the right plate is a plate-shaped member, and the lower end edges of the partition members 212 to 216 are formed in the groove portions 210a to 210e formed in the support member 210, respectively. Is inserted, and the partition members 212 to 216 are supported by the groove portions 210a to 210e. Further, the support member 211 attached to the upper plate 202, the left plate, and the right plate is also a plate-shaped member, and the upper portion of the partition members 212 to 216 is inserted into the holes 211a to 211e penetrating the support member 211, and the holes are formed. The partition members 212 to 216 are supported by 211a to 211e. The partition members 215 and 216 have a large size in the vertical direction, penetrate the holes 211d and 211e, and extend to the upper part in the space 220. The partition members 212 to 216 themselves and the space 220 partitioned by the partition members 212 to 216 also function as a heat insulating material. Each of the grooves 210a to 210e is not limited to a non-penetrating concave shape, but may be a penetrating hole.

支持部材２１０，２１１は、仕切り部材２１２〜２１６の板幅方向（Ｙ方向）の伸縮に対して余裕（遊び）を有して当該仕切り部材２１２〜２１６を支持している。具体的には、熱によって仕切り部材２１２〜２１６が板幅方向に伸びても仕切り部材２１２〜２１６の端縁部が支持部材２１０，２１１やその他の部材に邪魔されてつかえたりしない。一方、冷却によって仕切り部材２１２〜２１６が板幅方向に収縮する。しかし、溝部２１０ａ〜２１０ｅ、孔２１１ａ〜２１１ｅの奥行（深さ）は、仕切り部材２１２〜２１６が冷却によって収縮しても、仕切り部材２１２〜２１６の端縁部が支持部材２１０，２１１から外れて支持されなくなるようなことがない値に設定されている。また、仕切り部材２１２〜２１６の端縁部は支持部材２１０，２１１に固定されていないので、仕切り部材２１２〜２１６は収縮しても破損しない。これらの点は、後記する実施例２等でも同様である。
なお、仕切り部材２１２〜２１６は例えば基本的に樹脂で形成することができる。仕切り部材２１２（仕切り部材２１３〜２１６においても同様）の片側の面２１２ｏと他方の面２１２ｉのうち、少なくとも一方の面には例えばアルミ蒸着で被膜がなされていて、それを被膜しない場合に比べて低輻射率となる。
ここで、前記の余裕（遊び）は、仕切り部材２１２〜２１６を構成する材料の線膨張率等を考慮して設定される。 The support members 210 and 211 support the partition members 212 to 216 with a margin (play) with respect to expansion and contraction of the partition members 212 to 216 in the plate width direction (Y direction). Specifically, even if the partition members 212 to 216 extend in the plate width direction due to heat, the edge portions of the partition members 212 to 216 are not obstructed by the support members 210, 211 and other members and cannot be used. On the other hand, the partition members 212 to 216 contract in the plate width direction due to cooling. However, in the depths (depths) of the grooves 210a to 210e and the holes 211a to 211e, even if the partition members 212 to 216 shrink due to cooling, the edge portions of the partition members 212 to 216 are separated from the support members 210 and 211. It is set to a value that does not become unsupported. Further, since the edge portions of the partition members 212 to 216 are not fixed to the support members 210 and 211, the partition members 212 to 216 are not damaged even if they shrink. These points are the same in Example 2 and the like described later.
The partition members 212 to 216 can be basically formed of, for example, resin. Compared to the case where at least one of the one side surface 212o and the other side surface 212i of the partition member 212 (the same applies to the partition members 213 to 216) is coated with aluminum vapor deposition, for example, and is not coated. Low emissivity.
Here, the margin (play) is set in consideration of the linear expansion coefficient and the like of the materials constituting the partition members 212 to 216.

なお、図２Ｂは、支持部材２１０の部分拡大断面図である。図２Ｂは、図２Ａの構造の変形例となるもので、溝部２１０ａ〜２１０ｅを出口に近いほど漸次溝幅（Ｚ方向）が狭くなるようにして、断熱扉２００は、溝部２１０ａ〜２１０ｅから仕切り部材２１２〜２１６が離脱しにくくしてもよい。
以上説明した断熱扉２００によれば、仕切り部材２１２〜２１６の板幅方向の伸縮に対して余裕を有して当該仕切り部材２１２〜２１６を支持している。そのため、仕切り部材２１２〜２１６が冷気で収縮して破損してしまうことがないので、仕切り部材２１２〜２１６の断熱性を低減させることがない。また、仕切り部材２１２〜２１６が熱で膨張しても仕切り部材２１２〜２１６が撓んでしまうことがなく、仕切り部材２１２〜２１６と隣り合う部材同士が接触して断熱性が低下することがない。したがって、断熱扉２００の断熱性能を高めることができる。 Note that FIG. 2B is a partially enlarged cross-sectional view of the support member 210. FIG. 2B is a modification of the structure of FIG. 2A. The groove width (Z direction) is gradually narrowed as the groove portions 210a to 210e are closer to the outlet, and the heat insulating door 200 is partitioned from the groove portions 210a to 210e. Members 212 to 216 may be difficult to separate.
According to the heat insulating door 200 described above, the partition members 212 to 216 are supported with a margin for expansion and contraction in the plate width direction of the partition members 212 to 216. Therefore, since the partition members 212 to 216 are not shrunk and damaged by cold air, the heat insulating properties of the partition members 212 to 216 are not reduced. Further, even if the partition members 212 to 216 expand due to heat, the partition members 212 to 216 do not bend, and the members adjacent to the partition members 212 to 216 do not come into contact with each other and the heat insulating property does not deteriorate. Therefore, the heat insulating performance of the heat insulating door 200 can be improved.

また、仕切り部材２１２〜２１６の一方の面２１２ｏと他方の面２１２ｉのうち、少なくとも一方の面には例えばアルミ蒸着がなされていて、それを被膜しない場合に比べて低輻射率となる。そのため、断熱扉２００の断熱性能を高めることができる。なお、当該一方の面を庫外側にするのが好ましい。
さらに、図２Ｂの構造（出口に近いほど漸次溝幅が狭くなる構造）としたときは、仕切り部材２１２〜２１６のがたつきを抑制することができる。なお、仕切り部材２１２〜２１６の支持は上下方向に限られずその他の方向で行ってもよい。 Further, of the partition members 212 to 216, one surface 212o and the other surface 212i, for example, aluminum vapor deposition is made on at least one surface, and the emissivity is lower than that in the case where it is not coated. Therefore, the heat insulating performance of the heat insulating door 200 can be improved. It is preferable that one of the surfaces is on the outside of the refrigerator.
Further, when the structure of FIG. 2B (the structure in which the groove width gradually becomes narrower toward the outlet) is adopted, rattling of the partition members 212 to 216 can be suppressed. The partition members 212 to 216 are not limited to the vertical direction but may be supported in other directions.

図３は、図１のＢ−Ｂ断面図で示した本発明の実施例２にかかる断熱扉の断面図である。符号２０５，２０６は、図２Ａでは図示しなかった左板、右板である。本実施例２では、左板２０５、右板２０６にそれぞれ設けられた支持部材２１０Ｒ，２１０Ｌにそれぞれ形成された溝部２１０Ｒａ〜２１０Ｒｅ，２１０Ｌａ〜２１０Ｌｅによって、左右（Ｘ方向）から仕切り部材２１２〜２１６の端縁部を支持する。その支持構造は、実施例１の支持部材２１０と同様である。 FIG. 3 is a cross-sectional view of the heat insulating door according to the second embodiment of the present invention shown in the cross-sectional view taken along the line BB of FIG. Reference numerals 205 and 206 are left and right plates not shown in FIG. 2A. In the second embodiment, the partition members 212 to 216 are formed from the left and right (X direction) by the groove portions 210Ra to 210Re and 210La to 210Le formed in the support members 210R and 210L provided on the left plate 205 and the right plate 206, respectively. Support the edge. The support structure is the same as that of the support member 210 of the first embodiment.

よって、本実施例２においても、支持部材２１０Ｒ，２１０Ｌは、仕切り部材２１２〜２１６の板幅方向の伸縮に対して余裕を有して当該仕切り部材２１２〜２１６を支持している。ただし、実施例１と異なるのは、上下方向に支持しているのではなく、左右方向に支持している点である。よって、断熱扉３００によっても断熱性能を高めることができる。 Therefore, also in the second embodiment, the support members 210R and 210L support the partition members 212 to 216 with a margin for expansion and contraction in the plate width direction of the partition members 212 to 216. However, the difference from the first embodiment is that it is not supported in the vertical direction but is supported in the horizontal direction. Therefore, the heat insulating performance can be improved by the heat insulating door 300 as well.

図４Ａは、図１のＢ−Ｂ断面図で示した本発明の実施例３にかかる断熱扉の断面図である。本実施例３が実施例２と異なるのは、仕切り部材２１２〜２１６を面方向視（正面視及び背面視（Ｚ方向視）でない、面に平行な方向からの観察。本実施例ではＹ方向視。）すると板に平行な方向に連続的に波打った形状をしている点である。各仕切り部材２１２〜２１６は、波形状の山や谷がそれぞれ略同じＸ方向位置又はＹ方向位置になるように形成されている。
これに伴って、溝部２１０Ｒａ〜２１０Ｒｅ，２１０Ｌａ〜２１０Ｌｅの向きも仕切り部材２１２〜２１６の波打った形状に合うようにしている。
本実施例によれば、仕切り部材２１２〜２１６を連続的に波打った形状をしているので、仕切り部材２１２〜２１６は折れ曲がりにくく、図４Ａの例でいえば、Ｙ軸方向（高さ方向）に反りや曲がりが生じにくく、隣接し合うもの同士で接触しにくい。そのため、当該仕切り部材の枚数を増やすことも可能となる。そのため、当該仕切り部材の枚数の増大によって、断熱扉４００の断熱性能を向上させることができる。 FIG. 4A is a cross-sectional view of the heat insulating door according to the third embodiment of the present invention shown in the cross-sectional view taken along the line BB of FIG. The third embodiment is different from the second embodiment in that the partition members 212 to 216 are observed from a direction parallel to the plane, not in a plane direction (front view and back view (Z direction view). In this embodiment, the Y direction. Visually.) It is a point that the shape is continuously wavy in the direction parallel to the plate. The partition members 212 to 216 are formed so that the wavy peaks and valleys are at substantially the same X-direction position or Y-direction position, respectively.
Along with this, the directions of the groove portions 210Ra to 210Re and 210La to 210Le are also adjusted to match the wavy shape of the partition members 212 to 216.
According to this embodiment, since the partition members 212 to 216 have a continuously wavy shape, the partition members 212 to 216 are hard to bend, and in the example of FIG. 4A, in the Y-axis direction (height direction). ) Is less likely to warp or bend, and adjacent objects are less likely to come into contact with each other. Therefore, it is possible to increase the number of the partition members. Therefore, the heat insulating performance of the heat insulating door 400 can be improved by increasing the number of the partition members.

図４Ｂは、支持部材２１０Ｌの部分拡大断面図である。図４Ｂは、図４Ａの構造の変形例となるもので、図２Ｂの構造と同様、仕切り部材２１２〜２１６のがたつきを抑制することができる。 FIG. 4B is a partially enlarged cross-sectional view of the support member 210L. FIG. 4B is a modification of the structure of FIG. 4A, and can suppress rattling of the partition members 212 to 216 as in the structure of FIG. 2B.

図５は、図１のＡ−Ａ断面図で示した本発明の実施例４にかかる断熱扉の断面図である。本実施例３が実施例１と異なるのは、前記の例では別個の複数枚からなる仕切り部材（仕切る部分）を本例では一連につなぎ合わせ、一連の仕切り部材２３０にした点にある。すなわち、前記の実施例では１枚１枚別個になっている仕切り部材が、本例では隣接するものが端部で連続して一連の仕切り部材２３０になっている。仕切り部材２３０は山折りと谷折りが交互に連続して出現して、全体として内板２０４及び外板２０１の離間方向（Ｚ方向）に収縮状態で設けられ庫内外方向に空間２２０を仕切る収縮ばねを形成する。なお、図５の例では、前記の支持部材２１１に相当する部材が設けられておらず支持部材を１つ備えるのみであるが、２つ設けてもよい。 FIG. 5 is a cross-sectional view of the heat insulating door according to the fourth embodiment of the present invention shown in the cross-sectional view taken along the line AA of FIG. The third embodiment differs from the first embodiment in that, in the above example, a plurality of separate partition members (partitioning portions) are connected in a series to form a series of partition members 230. That is, in the above-described embodiment, the partition members that are individually separated from each other, and in this example, the adjacent members are continuously formed as a series of partition members 230 at the ends. The partition member 230 is provided in a contracted state in the separation direction (Z direction) of the inner plate 204 and the outer plate 201 as a whole, in which mountain folds and valley folds appear alternately and continuously, and the partition member 230 is contracted to partition the space 220 in the inside / outside direction of the refrigerator. Form a spring. In the example of FIG. 5, the member corresponding to the support member 211 is not provided and only one support member is provided, but two may be provided.

本実施例４の断熱扉５００によれば、一連の仕切り部材２３０が収縮ばねの状態で支持部材２１０に支持される。そして、仕切り部材２３０のバネ性によって、支持部材２１０の溝部２１０ａ〜２１０ｅから抜けにくくなる。
また、仕切り部材２３０中で山折り、谷折りにより隣接し合う板同士は、前記のばね性によって、互いに接触しにくい。そのため、断熱扉５００の断熱性能を向上させることができる。 According to the heat insulating door 500 of the fourth embodiment, a series of partition members 230 are supported by the support member 210 in the state of a contraction spring. Then, due to the springiness of the partition member 230, it becomes difficult to come off from the groove portions 210a to 210e of the support member 210.
Further, the plates adjacent to each other due to the mountain fold and the valley fold in the partition member 230 are less likely to come into contact with each other due to the spring property. Therefore, the heat insulating performance of the heat insulating door 500 can be improved.

なお、仕切り部材２３０を樹脂等で形成し、その両面２３０ｏ，２３０ｉにアルミ等を蒸着すれば、実施例１と同様、断熱扉５００の断熱性能を高めることができる。 If the partition member 230 is formed of resin or the like and aluminum or the like is vapor-deposited on both sides 230o and 230i thereof, the heat insulating performance of the heat insulating door 500 can be improved as in the first embodiment.

図６は、図１のＢ−Ｂ断面図で示した本発明の実施例５にかかる断熱扉の断面図である。本実施例５が実施例４と異なるのは、実施例４では仕切り部材２３０中の山折り、谷折りが上下方向（Ｙ軸方向）に出現するのに対して、本実施例５では左右方向（Ｘ軸方向）に出現する点である。その他の構成は、前記の実施例２に準ずる。
よって、本実施例５の断熱扉６００においても、実施例４と同様の効果を奏することができる。 FIG. 6 is a cross-sectional view of the heat insulating door according to the fifth embodiment of the present invention shown in the cross-sectional view taken along the line BB of FIG. The difference between the fifth embodiment and the fourth embodiment is that the mountain folds and valley folds in the partition member 230 appear in the vertical direction (Y-axis direction) in the fourth embodiment, whereas the horizontal direction in the fifth embodiment. It is a point that appears in the (X-axis direction). Other configurations are based on the above-mentioned Example 2.
Therefore, the same effect as that of the fourth embodiment can be obtained in the heat insulating door 600 of the fifth embodiment.

図７は、図１のＡ−Ａ断面図で示した本発明の実施例６にかかる断熱扉の断面図である。本実施例６が実施例１と異なるのは、内板２０４に形成された凹部２０４ａ内に仕切り部材２１２〜２１６とは異なる断熱材２４０を形成している点である。断熱材２４０としては、発泡ウレタン等を用いることができる。
本実施例６によれば、断熱材２４０を追加することにより、断熱扉７００の断熱性能を向上させることができる。また、用いる断熱材２４０としてのウレタンの量を少なくすることができる。 FIG. 7 is a cross-sectional view of the heat insulating door according to the sixth embodiment of the present invention shown in the cross-sectional view taken along the line AA of FIG. This Example 6 is different from the Example 1 in that a heat insulating material 240 different from the partition members 212 to 216 is formed in the recess 204a formed in the inner plate 204. As the heat insulating material 240, urethane foam or the like can be used.
According to the sixth embodiment, the heat insulating performance of the heat insulating door 700 can be improved by adding the heat insulating material 240. In addition, the amount of urethane used as the heat insulating material 240 can be reduced.

なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。 The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations.

１００冷蔵庫（冷凍冷蔵機器）
１０３製氷室扉（断熱扉）
２００断熱扉
２０１外板
２０４内板
２１０，２１１支持部材
２１２〜２１６仕切り部材
２３０仕切り部材
２４０断熱材（異なる断熱材）
３００断熱扉
４００断熱扉
５００断熱扉
６００断熱扉
７００断熱扉 100 Refrigerator (freezing and refrigerating equipment)
103 Ice making room door (insulated door)
200 Insulation door 201 Outer plate 204 Inner plate 210, 211 Support member 212-216 Partition member 230 Partition member 240 Insulation material (different insulation material)
300 Insulated door 400 Insulated door 500 Insulated door 600 Insulated door 700 Insulated door

Claims

内板と、
当該内板に対して少なくとも主面が離間して対向する外板と、
前記内板と前記外板との間に配された仕切り部材と、
前記仕切り部材を支持する支持部材と、を備え、
前記支持部材は、前記仕切り部材の伸縮に対して余裕を有して当該仕切り部材を支持することを特徴とする断熱扉。 Inner plate and
With an outer plate whose main surface is at least separated from the inner plate and faces the inner plate,
A partition member arranged between the inner plate and the outer plate,
A support member for supporting the partition member and a support member are provided.
The support member is a heat insulating door characterized in that the partition member is supported with a margin for expansion and contraction of the partition member.

前記仕切り部材は、前記内板及び前記外板の離間方向に間隔を空けて複数設けられており、
前記仕切り部材は、少なくとも片面はそれを被膜する場合に比べて低輻射率となる材料で被膜されていることを特徴とする請求項１に記載の断熱扉。 A plurality of the partition members are provided at intervals in the separating direction of the inner plate and the outer plate.
The heat insulating door according to claim 1, wherein the partition member is coated with a material having a low emissivity as compared with the case where at least one surface thereof is coated.

前記仕切り部材は、面方向視すると板幅方向に連続的に波打った形状をしていることを特徴とする請求項１に記載の断熱扉。 The heat insulating door according to claim 1, wherein the partition member has a shape that is continuously wavy in the plate width direction when viewed in the plane direction.

前記仕切り部材は、前記内板及び前記外板の離間方向に収縮状態である収縮ばねを形成することを特徴とする請求項１に記載の断熱扉。 The heat insulating door according to claim 1, wherein the partition member forms a contraction spring in a contracted state in a direction in which the inner plate and the outer plate are separated from each other.

前記仕切り部材は、両面にそれを被膜しない場合に比べて低輻射率となる材料で被膜されていることを特徴とする請求項４に記載の断熱扉。 The heat insulating door according to claim 4, wherein the partition member is coated with a material having a lower emissivity than when both surfaces are not coated.

前記仕切り部材よりも庫内側には、前記仕切り部材とは異なる断熱材が形成されていることを特徴とする請求項１に記載の断熱扉。 The heat insulating door according to claim 1, wherein a heat insulating material different from that of the partition member is formed inside the refrigerator from the partition member.

断熱室において断熱扉として請求項１乃至請求項６の何れかの一項に記載の断熱扉を備えていることを特徴とする冷凍冷蔵機器。 A freezing / refrigerating device comprising the heat insulating door according to any one of claims 1 to 6 as a heat insulating door in the heat insulating room.