JP2019015431A - Differential pressure cooling device - Google Patents

Differential pressure cooling device Download PDF

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Publication number
JP2019015431A
JP2019015431A JP2017131772A JP2017131772A JP2019015431A JP 2019015431 A JP2019015431 A JP 2019015431A JP 2017131772 A JP2017131772 A JP 2017131772A JP 2017131772 A JP2017131772 A JP 2017131772A JP 2019015431 A JP2019015431 A JP 2019015431A
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differential pressure
cooling device
space
intake
intake port
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JP6877039B2 (en
Inventor
奈央 芝田
Nao Shibata
奈央 芝田
利克 菅原
Toshikatsu Sugawara
利克 菅原
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Ryonetsu Kogyou Co Ltd
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Ryonetsu Kogyou Co Ltd
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Priority to JP2017131772A priority Critical patent/JP6877039B2/en
Priority to PCT/JP2017/040221 priority patent/WO2019008791A1/en
Priority to KR1020177035017A priority patent/KR20200026329A/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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • 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
    • F25D23/00—General constructional features
    • 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
    • F25D9/00—Devices not associated with refrigerating machinery and not covered by groups F25D1/00 - F25D7/00; Combinations of devices covered by two or more of the groups F25D1/00 - F25D7/00

Abstract

To provide a differential pressure cooling device which can suction cooling air in a more uniform manner.SOLUTION: A differential pressure cooling device is installed within a cooling chamber and includes: a differential pressure chamber in which a space is defined and multiple suction ports for allowing communication between the space and the exterior are formed at positions different from each other in a vertical direction; and a fan which is provided above the differential pressure chamber and generates a negative pressure in the space. In the multiple suction ports, suction ports located at the lower side have opening areas larger than those of the other suction ports located at the upper side.SELECTED DRAWING: Figure 7

Description

本発明の実施形態は、冷却室に配置されて差圧により冷却対象を冷却する差圧冷却装置に関する。   Embodiments described herein relate generally to a differential pressure cooling device that is disposed in a cooling chamber and cools an object to be cooled by a differential pressure.

従来、冷蔵庫や冷凍庫などの冷却室内に差圧室を設け、この差圧室内において加工食品などの冷却対象を効率良く冷却することが行われている。この差圧室は内部が負圧となるように構成され、これにより冷却室内の冷気が差圧室に吸気されるようになっており、吸気される冷気に晒されるように冷却対象を配置することによって、冷却対象は効率良く冷却されることとなる。   Conventionally, a differential pressure chamber is provided in a cooling chamber such as a refrigerator or a freezer, and a cooling target such as processed food is efficiently cooled in the differential pressure chamber. The differential pressure chamber is configured so that the inside has a negative pressure, whereby cold air in the cooling chamber is sucked into the differential pressure chamber, and the cooling target is arranged so as to be exposed to the cool air sucked in. As a result, the object to be cooled is efficiently cooled.

差圧室による冷却を行う差圧冷却装置としては、差圧室の上方に差圧室を負圧とするファンを設けるとともに差圧室の側面に吸気口としての開口を設け、冷却対象を載置する台車を、開口に当接ないしはその一部が差圧室内に挿入されるように配置することによって冷却を行う差圧冷却装置が知られている。   As a differential pressure cooling device that performs cooling by the differential pressure chamber, a fan that makes the differential pressure chamber a negative pressure is provided above the differential pressure chamber, and an opening as an intake port is provided on the side surface of the differential pressure chamber to mount a cooling target. 2. Description of the Related Art A differential pressure cooling device that performs cooling by placing a carriage to be placed in contact with an opening or a part thereof to be inserted into a differential pressure chamber is known.

また、このような差圧冷却装置として、冷蔵庫内に設けた差圧通風室、ファン及び差圧通風室の吸気口の前に当接される台車の上面をシールする差圧シートよりなる差圧通風機構と、収容食品の温度を検出する温度検出気と、収容食品の間を通過する空気に対する集塵フィルターと、冷蔵庫内を殺菌するオゾン殺菌器とを設けた加熱食品急速冷却装置、が知られている（例えば、特許文献１）。   In addition, as such a differential pressure cooling device, a differential pressure composed of a differential pressure sheet that seals the upper surface of a carriage that comes into contact with a differential pressure ventilation chamber, a fan, and an intake port of the differential pressure ventilation chamber provided in the refrigerator. A heated food rapid cooling device equipped with a ventilation mechanism, a temperature detection air for detecting the temperature of the stored food, a dust collecting filter for the air passing between the stored food, and an ozone sterilizer for sterilizing the inside of the refrigerator is known. (For example, Patent Document 1).

実開平６−５９７７６号公報Japanese Utility Model Publication No. 6-59776

しかしながら、上述の差圧冷却装置によれば、差圧室の側面に設けられた吸気口において、差圧室の上方に設けられたファンと吸気口の各位置との距離が一定でないために、冷気の吸引力が不均一となる、という問題がある。   However, according to the above-described differential pressure cooling device, since the distance between the fan provided above the differential pressure chamber and each position of the intake port is not constant in the intake port provided on the side surface of the differential pressure chamber, There is a problem that the suction force of the cold air becomes uneven.

一般的に、冷却対象が載置される台車は、上下に多段に設けられた複数の棚を有する所謂棚台車であり、この棚台車を上述の差圧冷却装置に当接した場合、棚それぞれに載置された冷却対象は不均一に冷却されることとなる。また、ここで冷却対象が特に食品である場合、冷却の不均一化は品質の不均一化を引き起こす可能性がある。   In general, the carriage on which the object to be cooled is placed is a so-called shelf carriage having a plurality of shelves provided in multiple stages, and when this carriage is brought into contact with the differential pressure cooling device described above, The object to be cooled placed on is cooled unevenly. In addition, when the object to be cooled is food in particular, non-uniform cooling may cause non-uniform quality.

本発明は上述した問題点を解決するためになされたものであり、より均一に冷気を吸気することができる差圧冷却装置を提供することを目的とする。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a differential pressure cooling apparatus capable of sucking cold air more uniformly.

上述した課題を解決するため、本発明の実施形態は、冷却室内に設置される差圧冷却装置であって、内部に空間が画成され、該空間と外部とを連通する複数の吸気口が上下方向において互いに異なる位置に形成された差圧室と、前記差圧室の上方に設けられて前記空間内を負圧にするファンとを備え、前記複数の吸気口において、下方に位置する吸気口は上方に位置する他の吸気口より開口面積が大きいことを特徴とする。   In order to solve the above-described problem, an embodiment of the present invention is a differential pressure cooling device installed in a cooling chamber, in which a space is defined inside, and a plurality of air inlets communicating the space with the outside are provided. A plurality of differential pressure chambers formed at positions different from each other in the vertical direction; and a fan provided above the differential pressure chamber to create a negative pressure in the space. The mouth has a larger opening area than the other inlets located above.

本発明によれば、より均一に冷気を吸気することができる差圧冷却装置を実現できる。   ADVANTAGE OF THE INVENTION According to this invention, the differential pressure cooling device which can draw in cold air more uniformly is realizable.

実施形態に係る差圧冷却装置の構成を示す正面図である。It is a front view which shows the structure of the differential pressure cooling device which concerns on embodiment. 差圧冷却装置の構成を示す左側面図である。It is a left view which shows the structure of a differential pressure cooling device. 差圧冷却装置の構成を示す平面図である。It is a top view which shows the structure of a differential pressure cooling device. 第１パネルの構成を示す正面図である。It is a front view which shows the structure of a 1st panel. 第２パネルの構成を示す正面図である。It is a front view which shows the structure of a 2nd panel. 図１に示されるＡ−Ａ’線断面図である。FIG. 2 is a sectional view taken along line A-A ′ shown in FIG. 1. 図１に示されるＢ−Ｂ’線断面図である。FIG. 2 is a sectional view taken along line B-B ′ shown in FIG. 1. 台車の構成を示す正面図である。It is a front view which shows the structure of a trolley | bogie. 台車の構成を示す左側面図である。It is a left view which shows the structure of a trolley | bogie. 台車の構成を示す平面図である。It is a top view which shows the structure of a trolley | bogie. 台車が設置された差圧冷却装置を示す図である。It is a figure which shows the differential pressure cooling device with which the trolley | bogie was installed.

以下、本発明の実施形態について図面を参照しつつ説明する。   Embodiments of the present invention will be described below with reference to the drawings.

（差圧冷却装置の構成）
まず、本実施形態に係る差圧冷却装置の構成について説明する。図１は、実施形態に係る差圧冷却装置の構成を示す正面図である。図２は、差圧冷却装置の構成を示す左側面図である。図３は、差圧冷却装置の構成を示す平面図である。なお、以降の説明においては、差圧冷却装置において吸気口（第１吸気口及び第２吸気口）が形成される側を前方、その逆側を後方、前後方向及び上下方向に直交する方向を左右方向として説明する。 (Configuration of differential pressure cooling device)
First, the configuration of the differential pressure cooling device according to the present embodiment will be described. FIG. 1 is a front view illustrating a configuration of a differential pressure cooling device according to an embodiment. FIG. 2 is a left side view showing the configuration of the differential pressure cooling device. FIG. 3 is a plan view showing the configuration of the differential pressure cooling device. In the following description, in the differential pressure cooling device, the side where the intake ports (first intake port and second intake port) are formed is defined as the front side, the opposite side is defined as the rear direction, the front-rear direction, and the vertical direction. It demonstrates as a left-right direction.

本実施形態に係る差圧冷却装置１は、図示しない冷却室、例えば冷蔵室や冷凍室などに設置されて、差圧によって台車に載置された冷却対象を効率的に冷気に晒すための装置である。図１〜図３に示すように、差圧冷却装置１は、左右の側壁部１１ａ及び１１ｂと、これら左右の側壁部１１ａ及び１１ｂの間に設けられた吸気部１２と、側壁部１１ａ及び１１ｂと吸気部１２との上に配置された差圧部１３とを備える。   A differential pressure cooling device 1 according to the present embodiment is installed in a cooling chamber (not shown), for example, a refrigeration chamber or a freezing chamber, and efficiently exposes a cooling target placed on a carriage by differential pressure to cold air. It is. As shown in FIGS. 1 to 3, the differential pressure cooling apparatus 1 includes left and right side wall portions 11a and 11b, an intake portion 12 provided between the left and right side wall portions 11a and 11b, and side wall portions 11a and 11b. And a differential pressure part 13 disposed on the intake part 12.

側壁部１１ａ及び１１ｂのそれぞれは、上下方向及び前後方向に延在する略平板状にそれぞれ形成され、互いに平面部が対向するように所定距離だけ左右方向に離間して配置される。吸気部１２は、後述するように内部に空間が形成された略直方体状の部材であり、側壁部１１ａ及び１１ｂの後方端部近傍において、広く形成された平面部を前後方向に向けて、側壁部１１ａと側壁部１１ｂとの間に挟まれるように配置される。側壁部１１ａ及び１１ｂと吸気部１２は、上下方向から見た場合に全体として略コの字状となるように配置される（図６参照）。差圧部１３は、後述するように内部に空間が形成された略直方体状の部材であり、略コの字状に配置された側壁部１１ａ及び１１ｂと吸気部１２の上に載置され、側壁部１１ａ及び１１ｂと吸気部１２と差圧部１３と差圧冷却装置１の設置面Ｓによって、全体として前方側の側面が開口した略直方体状の空間を画成するようになっている。また、後に詳述するように、吸気部１２と差圧部１３により１つの差圧室が構成される。   Each of the side wall portions 11a and 11b is formed in a substantially flat plate shape extending in the up-down direction and the front-rear direction, and is spaced apart in the left-right direction by a predetermined distance so that the plane portions face each other. As will be described later, the air intake portion 12 is a substantially rectangular parallelepiped member having a space formed therein, and in the vicinity of the rear end portions of the side wall portions 11a and 11b, the wide flat surface portion is directed in the front-rear direction, and the side wall It arrange | positions so that it may be pinched | interposed between the part 11a and the side wall part 11b. The side wall parts 11a and 11b and the air intake part 12 are arranged so as to be substantially U-shaped as a whole when viewed from the vertical direction (see FIG. 6). The differential pressure part 13 is a substantially rectangular parallelepiped member having a space formed therein as will be described later, and is placed on the side wall parts 11a and 11b and the intake part 12 arranged in a substantially U-shape, The side wall portions 11a and 11b, the intake portion 12, the differential pressure portion 13, and the installation surface S of the differential pressure cooling device 1 define a substantially rectangular parallelepiped space having an open front side surface as a whole. Further, as will be described in detail later, the intake portion 12 and the differential pressure portion 13 constitute one differential pressure chamber.

側壁部１１ａは、その下端において、前方側のキャスタ１１１ａ及び後方側のキャスタ１１１ｃと、前方側のアジャスタ１１２ａ及び後方側のアジャスタ１１２ｃ（図３参照）とを有する。また、同様に、側壁部１１ｂは、その下端において、前方側のキャスタ１１１ｂ及び後方側のキャスタ１１１ｄと、前方側のアジャスタ１１２ｂ及び後方側のアジャスタ１１２ｄ（図２及び図３参照）とを有する。差圧冷却装置１は、側壁部１１ａ及び側壁部１１ｂに設けられるキャスタ１１１ａ〜１１１ｄによって、容易に設置面Ｓに対して平行に移動可能となっており、また、側壁部１１ａ及び側壁部１１ｂに設けられるアジャスタ１１２ａ〜１１２ｄによって、設置面Ｓに対して固定可能となっている。   The side wall portion 11a has, at its lower end, a front caster 111a and a rear caster 111c, and a front adjuster 112a and a rear adjuster 112c (see FIG. 3). Similarly, the side wall portion 11b has a front caster 111b and a rear caster 111d, and a front adjuster 112b and a rear adjuster 112d (see FIGS. 2 and 3) at the lower end thereof. The differential pressure cooling device 1 can be easily moved in parallel to the installation surface S by casters 111a to 111d provided on the side wall portion 11a and the side wall portion 11b. It can be fixed to the installation surface S by the adjusters 112a to 112d provided.

吸気部１２には、図１に示すように、前方側の側面において、第１吸気口１２１と第２吸気口１２２とが形成されており、これら第１吸気口１２１と第２吸気口１２２は互いに同様の矩形状に形成され、第２吸気口１２２が第１吸気口１２１の下方に形成される。また、第１吸気口１２１には第１パネル１５が取り付けられ、第２吸気口１２２には第２パネル１６が取り付けられる。これら第１パネル１５及び第２パネル１６は、それぞれ、第１吸気口１２１及び第２吸気口１２２に対してケンドン式により取り付けられる。   As shown in FIG. 1, the intake portion 12 is formed with a first intake port 121 and a second intake port 122 on the front side surface. The first intake port 121 and the second intake port 122 are The second intake ports 122 are formed below the first intake port 121 and are formed in the same rectangular shape. Further, the first panel 15 is attached to the first air inlet 121, and the second panel 16 is attached to the second air inlet 122. The first panel 15 and the second panel 16 are attached to the first air inlet 121 and the second air inlet 122 by a Kendon type, respectively.

差圧部１３は、図３に示すように、その上面にファン１７が設けられており、また、後に詳述するように、差圧部１３内の空間は吸気部１２の空間と連通するようになっている。ファン１７は、差圧部１３と吸気部１２内の空気を外部に排出して差圧部１３及び吸気部１２内を負圧とするように動作する。なお、ファン１７は、本実施形態においてはプロペラファンとして構成されるが、他のタイプのファンとして構成されても良い。   As shown in FIG. 3, a fan 17 is provided on the upper surface of the differential pressure unit 13, and the space in the differential pressure unit 13 communicates with the space of the intake unit 12 as will be described in detail later. It has become. The fan 17 operates so as to discharge the air in the differential pressure section 13 and the intake section 12 to the outside so that the differential pressure section 13 and the intake section 12 have a negative pressure. The fan 17 is configured as a propeller fan in this embodiment, but may be configured as another type of fan.

（第１パネル及び第２パネルの構成）
次に、第１パネル及び第２パネルの構成について説明する。図４は、第１パネルの構成を示す正面図である。図５は、第２パネルの構成を示す正面図である。 (Configuration of the first panel and the second panel)
Next, the configuration of the first panel and the second panel will be described. FIG. 4 is a front view showing the configuration of the first panel. FIG. 5 is a front view showing the configuration of the second panel.

図４に示すように、第１パネル１５は、吸気部１２の第１吸気口１２１に合わせて形成された薄い板状の部材である板状部１５０を有し、この板状部１５０には、２つの開口部１５１が上下対称に形成され、それぞれの開口部１５１には、所定の径を有する複数のパンチ孔Ｐ１が形成されたパンチング板１５１Ｐが嵌め込まれている。   As shown in FIG. 4, the first panel 15 has a plate-like portion 150 that is a thin plate-like member formed in accordance with the first intake port 121 of the intake portion 12. Two openings 151 are formed vertically symmetrically, and a punching plate 151P in which a plurality of punch holes P1 having a predetermined diameter is formed is fitted in each of the openings 151.

このように、第１パネル１５は、パンチ孔Ｐ１以外の部分において第１吸気口１２１を塞ぐように構成されており、また、第１吸気口１２１の開口面積を全てのパンチ孔Ｐ１の面積を合計した所定の開口面積とするように構成される。   As described above, the first panel 15 is configured to block the first air inlet 121 at a portion other than the punch hole P1, and the opening area of the first air inlet 121 is set to be the area of all the punch holes P1. It is comprised so that it may become the total predetermined opening area.

また、第１パネル１５は、第１吸気口１２１に対する取り付け及び取り外しを行う際の持ち手としてそれぞれ構成された、右側の把持部１５３ａ及び左側の把持部１５３ｂを有する。   The first panel 15 includes a right grip 153a and a left grip 153b, which are respectively configured as handles when attaching to and detaching from the first air inlet 121.

図５に示すように、第２パネル１６は、吸気部１２の第２吸気口１２２に合わせて形成された薄い板状の部材である板状部１６０を有し、この板状部１６０には、中央の開口部１６１と、この開口部１６１より開口面積が小さく上下対称に形成された２つの開口部１６２が中央の開口部１６１の上下にそれぞれ形成される。中央の開口部１６１には、パンチ孔Ｐ１より大きい径を有する複数のパンチ孔Ｐ２が形成されたパンチ板１６１Ｐが嵌め込まれている。また、同様に、上下の２つの開口部１６２のそれぞれには、複数のパンチ孔Ｐ２が形成されたパンチング板１６２Ｐが嵌め込まれている。   As shown in FIG. 5, the second panel 16 has a plate-like portion 160 that is a thin plate-like member formed in accordance with the second intake port 122 of the intake portion 12. A central opening 161 and two openings 162 having an opening area smaller than the opening 161 and formed symmetrically are formed above and below the central opening 161, respectively. A punch plate 161P in which a plurality of punch holes P2 having a diameter larger than the punch hole P1 is formed is fitted in the central opening 161. Similarly, a punching plate 162P in which a plurality of punch holes P2 are formed is fitted in each of the upper and lower openings 162.

このように、第２パネル１６は、第１パネル１５と同様に、パンチ孔Ｐ２以外の部分において第２吸気口１２２を塞ぐように構成されており、また、第２吸気口１２２の開口面積を全てのパンチ孔Ｐ２の面積を合計した所定の開口面積とするように構成され、この第２吸気口１２２における開口面積は、第１吸気口における開口面積より大きいものとする。   Thus, like the first panel 15, the second panel 16 is configured to block the second intake port 122 at portions other than the punch hole P2, and the opening area of the second intake port 122 is increased. The area of all the punch holes P2 is configured to be a predetermined opening area, and the opening area of the second intake port 122 is larger than the opening area of the first intake port.

また、第２パネル１６は、第１パネル１５と同様に、第２吸気口１２２に対する取り付け及び取り外しを行う際の持ち手としてそれぞれ構成された、右側の把持部１６３ａ及び左側の把持部１６３ｂを有する。   Similarly to the first panel 15, the second panel 16 includes a right grip 163 a and a left grip 163 b configured as handles when attaching to and detaching from the second air inlet 122. .

（差圧冷却装置の内部構成及び動作）
次に、差圧冷却装置の内部構成及び動作について説明する。図６は、図１に示されるＡ−Ａ’線断面図であり、具体的には、差圧冷却装置を前後方向及び左右方向に平行する平面により切断して上方より見た図である。図７は、図１に示されるＢ−Ｂ’線断面図であり、具体的には、差圧冷却装置を前後方向及び上下方向に平行する平面により切断して左方より見た図である。なお、図７において、ファン１７についてはその左側面が示されるものとする。 (Internal configuration and operation of differential pressure cooling device)
Next, the internal configuration and operation of the differential pressure cooling device will be described. FIG. 6 is a cross-sectional view taken along the line AA ′ shown in FIG. 1. Specifically, the differential pressure cooling device is cut from a plane parallel to the front-rear direction and the left-right direction and viewed from above. FIG. 7 is a cross-sectional view taken along line BB ′ shown in FIG. 1, specifically, a view of the differential pressure cooling device cut from a plane parallel to the front-rear direction and the vertical direction and viewed from the left. . In FIG. 7, the left side of the fan 17 is shown.

図６及び図７に示すように、吸気部１２の内部には、ファン１７により外部より負圧にされる空間１２０が画成され、この空間１２０は、第１吸気口１２１及び第２吸気口１２２により外部と連通するようになっている。第１吸気口１２１と第２吸気口１２２のそれぞれには第１パネル１５と第２パネル１６が取り付けられているため、空間１２０は、第１パネル１５に形成された２つの開口部１５１と第２パネル１６に形成された開口部１６１及び２つの開口部１６２とを介して、外部と連通するようになっている。   As shown in FIGS. 6 and 7, a space 120 that is negatively pressured from the outside by the fan 17 is defined inside the intake portion 12, and the space 120 includes the first intake port 121 and the second intake port. 122 communicates with the outside. Since the first panel 15 and the second panel 16 are attached to the first intake port 121 and the second intake port 122, the space 120 has two openings 151 formed in the first panel 15 and the first panel 15. The two panels 16 communicate with the outside through an opening 161 and two openings 162 formed in the panel 16.

図７に示すように、差圧部１３の内部には、ファン１７の一部が収容されるとともに、ファン１７により外部より負圧にされる空間１３０が画成され、この空間１３０は、ファン１７を介して外部と連通するようになっている。   As shown in FIG. 7, a space 130 in which a part of the fan 17 is housed and negative pressure is applied from the outside by the fan 17 is defined inside the differential pressure unit 13. 17 is communicated with the outside.

また、吸気部１２の上面に連通孔１２３が形成されるとともに、差圧部１３の底面において連通孔１２３と対応する連通孔１３１が形成され、吸気部１２の空間１２０と差圧部１３の空間１３０とが連通するようになっている。これによって、空間１３０が負圧となった場合に空間１２０も負圧となり、したがって、２つの吸気口１５１、吸気口１６１、及び２つの吸気口１６２から差圧冷却装置１の外部、即ち冷却室内の冷気が空間１２０及び１３０に吸気されることとなる。ここで、側壁部１１ａ及び１１ｂと吸気部１２によって囲繞された配置位置Ｔ（図３参照）に台車を配置することによって、台車に載置された冷却対象に対して効率良く冷気を当てることができる。   In addition, a communication hole 123 is formed on the upper surface of the intake portion 12, and a communication hole 131 corresponding to the communication hole 123 is formed on the bottom surface of the differential pressure portion 13, so that the space 120 of the intake portion 12 and the space of the differential pressure portion 13 are formed. 130 is in communication. Accordingly, when the space 130 becomes negative pressure, the space 120 also becomes negative pressure. Therefore, the outside of the differential pressure cooling device 1 from the two intake ports 151, the intake ports 161, and the two intake ports 162, that is, the cooling chamber. The cool air is sucked into the spaces 120 and 130. Here, by arranging the carriage at the arrangement position T (see FIG. 3) surrounded by the side walls 11a and 11b and the intake section 12, it is possible to efficiently apply cool air to the cooling target placed on the carriage. it can.

また、上述したように、第２吸気口１２２における開口部１６１，１６２の開口面積を第１吸気口１２１における吸気口１５１の開口面積より大きくすることによって、上下方向における空間１２０及び１３０への冷気の吸引力の差を低減することができ、延いては上下方向における冷気の吸引力をより均一化することができる。   In addition, as described above, by making the opening area of the openings 161 and 162 in the second intake port 122 larger than the opening area of the intake port 151 in the first intake port 121, the cool air to the spaces 120 and 130 in the vertical direction The difference in suction force can be reduced, so that the suction force of cold air in the vertical direction can be made more uniform.

また、第１吸気口１２１、第２吸気口１２２において、それぞれ、パンチング板１５１Ｐ、パンチング板１６１Ｐ及び１６２Ｐを介して冷気が吸気されるため、冷気の風速をより均一化することができる。更に、第２吸気口１２２に取付けられる第２パネル１６におけるパンチ孔Ｐ２の径を第１吸気口１５に取付けられる第１パネル１５におけるパンチ孔Ｐ１の径より大きくすることによって、上下方向における空間１２０及び１３０へ吸気される冷気の風速の差を低減することができ、延いては上下方向における冷気の風速をより均一化することができる。   In addition, since the cold air is sucked through the punching plate 151P and the punching plates 161P and 162P at the first air inlet 121 and the second air inlet 122, respectively, the wind speed of the cold air can be made more uniform. Furthermore, by making the diameter of the punch hole P2 in the second panel 16 attached to the second air inlet 122 larger than the diameter of the punch hole P1 in the first panel 15 attached to the first air inlet 15, the space 120 in the vertical direction. And the difference of the wind speed of the cool air sucked into 130 can be reduced, so that the wind speed of the cool air in the vertical direction can be made more uniform.

次に、差圧冷却装置による冷却対象が載置される台車について説明する。図８は、台車の構成を示す正面図である。図９は、台車の構成を示す右側面図である。図９は、台車の構成を示す左側面図である。図１０は、台車の構成を示す平面図である。図１０は、台車が設置された差圧冷却装置を示す図である。なお、図１０における差圧冷却装置は、図７に示したものと同様の断面により示される。   Next, the cart on which the object to be cooled by the differential pressure cooling device is placed will be described. FIG. 8 is a front view showing the configuration of the carriage. FIG. 9 is a right side view showing the configuration of the carriage. FIG. 9 is a left side view showing the configuration of the carriage. FIG. 10 is a plan view showing the configuration of the carriage. FIG. 10 is a diagram showing a differential pressure cooling device in which a carriage is installed. The differential pressure cooling device in FIG. 10 is shown by the same cross section as that shown in FIG.

図８〜図１０に示すように、差圧冷却装置１に対して用いられる台車２は、所謂棚台車であり、全体として略直方体状に形成され、直方体の辺部を構成するように前後方向、左右方向、及び上下方向を向く複数の棒状の部材が組み合わされた枠体２０を備え、更に、それぞれ、平板状に形成され、枠体２０内において上下方向に互いに異なる位置に支持された複数の部材と載置部２１を備える。この載置部２１には、冷却対象Ｃを収容する容器としてのバット３が載置される。また、枠体２０の下端における４つの角部には、キャスタ２０１ａ〜２０１ｄが設けられ、これらのキャスタ２０１ａ〜２０１ｄによって台車１は設置面Ｓ上を移動可能となっている。   As shown in FIGS. 8 to 10, the carriage 2 used for the differential pressure cooling device 1 is a so-called shelf carriage, and is formed in a substantially rectangular parallelepiped shape as a whole, so as to constitute a side portion of the rectangular parallelepiped. , A frame body 20 in which a plurality of rod-shaped members facing in the left-right direction and the up-down direction are combined, and each of them is formed in a flat plate shape and is supported in different positions in the vertical direction in the frame body 20. And a mounting portion 21 are provided. A bat 3 serving as a container for accommodating the cooling object C is placed on the placement portion 21. In addition, casters 201 a to 201 d are provided at four corners at the lower end of the frame body 20, and the carriage 1 can move on the installation surface S by these casters 201 a to 201 d.

このように構成された台車１は、その前後方向を差圧冷却装置１の前後方向と一致させて、上述した配置位置Ｔ（図３参照）まで移動されることによって、図１１に示すように、側壁部１１ａ及び１１ｂと吸気部１２と差圧部１３と差圧冷却装置１の設置面Ｓにより前方のみが開放されるように画成された空間に収まる。ここで、差圧冷却装置１のファン１７が作動されることにより、冷却室内の空気が台車１を通って空間１２０及び１３０に吸引され、これによって、台車１に載置された冷却対象Ｃが急速に冷却されることとなる。   As shown in FIG. 11, the cart 1 configured as described above is moved to the above-described arrangement position T (see FIG. 3) with its front-rear direction aligned with the front-rear direction of the differential pressure cooling device 1. The side walls 11a and 11b, the intake part 12, the differential pressure part 13, and the installation surface S of the differential pressure cooling device 1 are accommodated in a space defined so that only the front is opened. Here, when the fan 17 of the differential pressure cooling device 1 is operated, the air in the cooling chamber is sucked into the spaces 120 and 130 through the carriage 1, whereby the cooling object C placed on the carriage 1 is cooled. It will be cooled rapidly.

また、上述した第１吸気口１２１、第２吸気口１２２それぞれの開口面積によって、台車１における上下に並んだ載置部２１をそれぞれ通る冷気の流量の差は低減され、また、風速の差についてもパンチ孔Ｐ１及びＰ２により低減される。また、台車１が配置位置Ｔに配置された際に、台車１の側方に側壁部１１ａ及び１１ｂが位置し、台車１の上方に差圧部１３が位置することによって、より多くの冷気が台車１を通過することとなる。   Moreover, the difference in the flow rate of the cold air passing through the mounting portions 21 arranged in the upper and lower sides in the carriage 1 is reduced by the opening areas of the first intake port 121 and the second intake port 122 described above, and the difference in wind speed Is also reduced by the punch holes P1 and P2. Further, when the carriage 1 is arranged at the arrangement position T, the side wall parts 11a and 11b are located on the side of the carriage 1 and the differential pressure part 13 is located above the carriage 1, so that more cold air is generated. It will pass through the cart 1.

なお、本実施形態においては、ファン１７が設けられる差圧部１３と第１吸気口１２１及び第２吸気口１２２が形成される吸気部１２とを備えて、吸気部１２の空間１２０と差圧部１３の空間１３０とを連通させる構成としたが、内部に空間が画成された１つの差圧室の上方にファン１７を設けて、側方に第１吸気口１２１及び第２吸気口１２２を形成しても良い。また、本実施形態において、第１吸気口１２１と第２吸気口１２２との２つの吸気口を形成するものとしたが、上下方向に互いに異なる位置に複数の吸気口を形成し、下方の吸気口ほどより開口面積を大きくすれば良い。   In the present embodiment, the differential pressure unit 13 provided with the fan 17 and the intake unit 12 in which the first intake port 121 and the second intake port 122 are formed are provided, and the differential pressure between the space 120 of the intake unit 12 and the differential pressure unit 13 is provided. However, the fan 17 is provided above one differential pressure chamber in which the space is defined, and the first air inlet 121 and the second air inlet 122 are formed laterally. May be formed. In the present embodiment, the two intake ports, the first intake port 121 and the second intake port 122, are formed. However, a plurality of intake ports are formed at different positions in the vertical direction, and the lower intake port is formed. What is necessary is just to enlarge opening area so that it is a mouth.

本発明は、その要旨または主要な特徴から逸脱することなく、他の様々な形で実施することができる。そのため、前述の実施形態は、あらゆる点で単なる例示に過ぎず、限定的に解釈してはならない。本発明の範囲は、特許請求の範囲によって示すものであって、明細書本文には、何ら拘束されない。更に、特許請求の範囲の均等範囲に属する全ての変形、様々な改良、代替および改質は、全て本発明の範囲内のものである。   The present invention can be implemented in various other forms without departing from the gist or main features thereof. Therefore, the above-mentioned embodiment is only an illustration in all points, and should not be interpreted limitedly. The scope of the present invention is shown by the scope of claims, and is not restricted by the text of the specification. Moreover, all modifications, various improvements, substitutions and modifications belonging to the equivalent scope of the claims are all within the scope of the present invention.

１ 差圧冷却装置
１２ 吸気部（差圧室）
１３ 差圧部（差圧室）
１７ ファン
１２０ 空間
１２１吸気口
１２２ 吸気口
１３０ 空間 1 Differential pressure cooling device 12 Intake part (differential pressure chamber)
13 Differential pressure part (Differential pressure chamber)
17 Fan 120 Space 121 Air intake 122 Air intake 130 Space

Claims (3)

冷却室内に設置される差圧冷却装置であって、
内部に空間が画成され、該空間と外部とを連通する複数の吸気口が上下方向において互いに異なる位置に形成された差圧室と、
前記差圧室の上方に設けられて前記空間内を負圧にするファンとを備え、
前記複数の吸気口において、下方に位置する吸気口は上方に位置する他の吸気口より開口面積が大きいことを特徴とする差圧冷却装置。 A differential pressure cooling device installed in a cooling chamber,
A differential pressure chamber in which a space is defined inside, and a plurality of air inlets communicating with the space and the outside are formed at different positions in the vertical direction;
A fan that is provided above the differential pressure chamber and makes the inside of the space have negative pressure,
The differential pressure cooling device according to claim 1, wherein, in the plurality of intake ports, an intake port located below has a larger opening area than other intake ports located above. 前記複数の吸気口のそれぞれには、複数のパンチ孔が形成されたパンチング板が設けられていることを特徴とする請求項１に記載の差圧冷却装置。   2. The differential pressure cooling apparatus according to claim 1, wherein each of the plurality of air inlets is provided with a punching plate in which a plurality of punch holes are formed. 下方に位置する吸気口に設けられたパンチング板に形成されたパンチ孔は、上方に位置する他の吸気口に設けられた他のパンチング板に形成されたパンチ孔よりも大きな径に形成されることを特徴とする請求項２に記載の差圧冷却装置。   The punch hole formed in the punching plate provided in the lower intake port is formed to have a larger diameter than the punch hole formed in the other punching plate provided in the other intake port located above. The differential pressure cooling device according to claim 2.
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