200303974 玖、發明說明 (發明說明應敘明：發明所屬之技術領域、先前技術、內容、實施方式及圖式簡單說明) (一） 發明所屬之技術領域 本發明係關於一種大型開放式展示櫃，其在商品陳列部之 後方具有做爲商品儲藏室而使用之後庭。 - (二） 先前技術 習知大型開放式展示櫃爲如第4圖所示者。 此種展示櫃係具有：朝向店舖內且前面有開口之商品陳列 部1 ;在商品陳列部1之後方儲藏有補充商品的後庭2的展 示櫃，商品架1 1上之商品A被購入之時，手從店舖內側*** 前面開口 1 2，而購入商品A。另一方面，在商品架1 1上補充 商品A之時，使商品A從後庭2之儲藏架2 1取出，而在打開 商品陳列部1之背面小門1 3之後，於商品架1 1上進行補充 。此種展示櫃的構造可以達成先進先出，並且可從後庭2簡 單地補充商品。 而且，此種展示櫃中，爲了使商品陳列部1以及後庭2 之商品A被冷卻，設置具有冷卻單元3 1的冷氣風路裝置3 。此冷卻單元31配置在商品陳列部1之天花板部1 4與後 庭2之天花板部22之間，而由懸吊金屬配件3 3吊設在後庭 2之天花板部22上。商品A被保持冷卻之時，如第4圖之 實線箭頭所顯示者，後庭2內之空氣通過冷卻單元3 1，在此 會形成所產生之冷氣經由吹出風管3 2而在前面開口 1 2吹 出的空氣幕，而使商品陳列部1被保冷，而且此冷氣回到後 -6 - 200303974 庭2而進行儲藏商品A之預冷。 但是，該先前技術之展示櫃中，商品陳列部1之前面開 口 1 2是形成在從天花板部1 4橫亙於後庭2之底側，使空氣 幕之上下尺寸變得非常長。然而，因空氣幕之上下尺寸很長 之故，必須將冷氣之風速設定很快。 但是，空氣幕的風速變成越快之時，雖然可以防止空氣從 店舖內侵入到商品陳列部或者冷氣從商品陳列部1向店舖 內洩露，但是，因爲風速很快之故，使進入到商品陳列部1上 部的冷氣減少，因而有上部陳列商品A不太冷的問題，並且 因而必須使冷凍機之所需冷凍能力變大，因此商品陳列部1 之之冷卻效率會變成降低。 爲了解決這種問題，考慮採用一般在開放式展示櫃所使用 的二重空氣幕構造。爲了採用此種二重空氣幕構造，雖然必 須在設置空間2 3上設置冷卻單元3 1與另外之其他冷風路 裝置，此設置空間2 3如第4圖所示，已經使用做爲商品儲存 空間，實質上已無法再設置其他風路裝置。 (三）發明內容 本發明乃鑑於該先前技術之課題而發展成，其目的在提 供一種大型開放式展示櫃，其可利用二重空氣幕構造，而 使所需之冷凍能力減少，而且可以不必在商品陳列部之天花 板部上方準備新的空氣而設置外側風路裝置。 本發明爲了解決上述課題，提供有一種大型開放式展示櫃， 其係具有：朝向店舖內且前面有開口之商品陳列部；在該 商品陳列部之後方用來儲藏補充商品等之後庭；在商品陳列 _7 - 200303974 部之前面開口上形成有空氣幕之冷氣風路裝置，該冷氣風路 裝置之冷卻單元配置在商品陳列部之天花板部與後庭之天 花板部之間的大型開放展示櫃，其具有外側風路裝置，其通 過冷卻單元與後庭之天花板部之間的間隙而在空氣幕之外 側上形成另一個空氣幕之構造。 依照本發明，利用外側風路裝置之驅動，使後庭內之空 氣通過冷卻單元與後庭之天花板部之間，而在前面開口上吹 出，以形成空氣幕。因爲此空氣幕是形成在通過冷卻單元的 冷氣之空氣幕的外側上，因此在前面開口上形成有二重空氣 幕〇 (四）實施方式 發明之實施形態 第1到3圖爲顯示本發明有關的大型開放式展示櫃之一 個實施形態，第1圖爲大型開放展示櫃之側剖面圖，第2圖 係顯示外側風路裝置之平面圖，第3圖爲顯示懸吊金屬配件 之裝配的斜視圖。而與第4圖所顯示之先前技術的大型開 放展示櫃爲同樣構成部份以相同符號表示。 大型開放式展示櫃係由：陳列商品A之商品陳列部1，儲 存商品陳列部1上所補充之商品A的後庭2所一體形成，因 此商品陳列部1之前面開口 1 2爲向著店舖內而開口，另一 方面，商品陳列部1之背面則連通到後庭2內。 該商品陳列部1配置有橫亙之多數段的商品架1 1，商品 架1 1上之商品A經由前面開口 1 2而從店舖內取出。另一 方面，在商品陳列部1之背面設置有背面小門1 3，商品A於 - 8 - 200303974 商品架1 1上補充之時，先取出後庭2內之儲藏架21上之 商品A，或者載置於商品陳列部1之天花板部1 4上的商品A， 而後打開背面小門1 3而對商品架1 1上進行補充。 如此所構成的商品陳列部1或後庭2具有做爲保冷裝置 用之冷氣風路裝置（以下稱爲內風路裝置）3以及外側風路 裝置4。 內風路裝置3係在商品陳列部1之天花板部1 4與後庭2 之天花板部22之間所形成的設置空間23中設置有冷卻單 元3 1。此冷卻單元3 1係具有：冷卻器3 1 1以及內側空氣循 環風扇3 1 2，利用內側空氣循環風扇3 1 2使後庭2內之空氣 流到冷卻器3 1 1，在冷卻器3 1 1冷卻後之空氣變成冷氣而在 內側吹出風道32中吹出之構造。而且，冷卻單元3 1爲冷 卻器3 1 1以及內側空氣循環風扇3 1 2之上部被單元蓋子3 1 3 所覆蓋，介由此單元蓋子3 1 3以懸吊金屬配件3 3而固定在 後庭2之天花板部2 2上。 此懸吊金屬配件3 3之構造主要參考第2及3圖說明。此 懸吊金屬配件3 3是由：從單元蓋子3 1 3之前後端上向外方 向上配置有間隔的天花板固定托架331，以及在各天花板固 定托架3 3 1上架設成配置有相互間隔的單元固定托架3 3 2 所構成。各天花板固定托架3 3 1在上下成階段狀屈曲，螺絲 3 3 1 c經由在上板3 3 1 a上所穿設的多數個螺絲孔3 3 1 b而固 定到後庭2之天花板部22上。另一方面，單元固定托架332 配置在單元蓋子3 1 3與天花板部22之間，其兩端如第3圖 所示，以螺絲3 3 2 a而固定在各天花板固定托架3 3 1的下板 200303974 3 3 1 d上，而且，兩端部間介由單元蓋子3 1 3以螺絲（螺絲3 3 2 b ) 而固定在冷卻單元31上。因此，冷卻單元31在後庭2之 天花板部22上懸吊而固定。 另一方面，外風路裝置4如第1圖所示，具有配置在冷 卻單元3 1前方的外側空氣循環風扇4 1。此外側空氣循環 風扇4 1之吸入側爲面對後庭2內，其可吸入後庭2內之空 氣。並且，外風路裝置4具有可使在此外側空氣循環風扇 4 1所吸入之空氣被導入外側吹出風道42之一連串的通風 構造。此通風構造係由該懸吊金屬配件3 3及單元蓋子3 1 3 所形成，其構造將參考第2圖及第3圖而說明。 即，該懸吊金屬配件3 3之單元固定托架3 3 2的剖面大致 形成爲U字形，因此僅在此單元固定托架332之高度上形成 天花板部22與單元蓋子3 1 3之間的間隙（外側通風路43 1 ) 。而且，前後之天花板固定托架331配置在單元蓋子313之 前後端部的外方上。因此，後側之天花板固定托架3 3 1與單 元蓋子3 1 3之後端之間形成有間隙，此間隙成爲外側通風路 431與外側空氣循環風扇41連通之通風入口 432。並且，前 側的天花板固定托架3 3 1與單元蓋子3 1 3的前端之間亦形 成有間隙，此間隙成爲外側吹出風道4 2與外側通風路4 3 1 連通之通風出口 4 3 3。因而，使外側空氣循環風扇4 1所吸 入的空氣如第1及2圖所示，經由通風入口 4 3 2而流到通風 出口 4 3 3 ,再經由通風出口 4 3 3而從外側吹出風道4 2吹出 〇 利用以上之內側通風裝置3及之外側通風裝置4可使後 -1 0 - 200303974 庭2內之空氣產生循環。在此，以內側通風裝置3所循環的 空氣如第1圖中實線箭頭所示，在冷卻器311處被冷卻，再 通過內側吹出風道3 2而流到空氣整流器1 5。然後，從空氣 整流器1 5吹出之冷氣在商品陳列部1之前面開口 1 2向下 方流動，而在前面開口 1 2形成內側空氣幕。此在下方送出 之冷氣通過吸入口 1 6而到達下側通路1 7 ,再利用下部循環 風扇1 8而回到後庭2內。 另一方面，以外側通風裝置4所循環的空氣如第1圖中 虛線箭頭所示，流到外側通風路4 3 1 (在冷卻器3 1 1迂迴地 流動），再通過外側吹出風道42而流到空氣整流器1 5。然 後，從空氣整流器1 5吹出之冷氣在商品陳列部1之前面開 口 1 2向下方流動，而在前面開口 1 2形成外側空氣幕。此在 下方送出之冷氣通過吸入口 1 6而到達下側通路1 7，再利用 下部循環風扇1 8而回到後庭2內。 依照本實施形態有關的大型開放式展示櫃，可在商品陳列 部1之前面開口 1 2的內側形成以冷卻器3 1 1冷卻之冷氣的 空氣幕，並且在冷氣之空氣幕的外側形成非冷卻的空氣幕， 因此而形成溫度不同之二重空氣幕，因而可使商品陳列部1 之冷卻效率提高，並且所需冷凍能力亦可降低。 並且，外側通風裝置4之外側通風路4 3 1是利用在冷卻 單元3 1設置於天花板部2 2之時使用懸吊金屬配件3 3的空 間（死角），因此各風路裝置3，4全體之上下尺寸不會變大， 而且，已有的設置空間2 3 —點也不須變更，此設置空間2 3 可利用與先前技術相同的載置商品A之空間。 - 1 1 - 200303974 而且，內側風路裝置3之內側空氣循環風扇3丨2與外側 通風裝置4之外側空氣循環風扇4丨爲分別設置，通風路上 不會互相干涉，因此冷卻器3 1 1之熱交換能力也保持與先前 技術之大型開放展示櫃同樣的能力。 發明的效果 如以上所說明，依照本發明，其可在商品陳列部之前面開 口的內側形成以冷卻單兀冷卻之冷氣的空氣幕，並且在冷氣 之空氣幕的外側形成非冷卻的空氣幕，因此而形成溫度不同 之二重空氣幕，因而可使商品陳列部之冷卻效率提高，並且 所需冷凍能力亦可降低。 而且，利用外側風路裝置之驅動，使後庭內之空氣通過 冷卻單元與後庭之天花板部之間的間隙，而從前面開口吹出， 因而可利用既有之間隙做爲外風路裝置之通風路，因此各風 路裝置全體之上下尺寸不會變大。 (五）圖示簡單說明 第1圖爲本發明大型開放展示櫃之側面剖面圖； 第2圖係顯示外側風路裝置之平面圖； 第3圖爲顯示懸吊金屬配件之配置的斜視圖； 第4圖爲先前技術的大型開放展示櫃的側面剖面圖。 符號之說明 A 商品 1 商品陳列部 2 後庭 3 內風路裝置 - 1 2 - 外風路裝置200303974 (1) Description of the invention (The description of the invention should state: the technical field, prior art, content, embodiments, and drawings of the invention.) (1) The technical field to which the invention belongs The present invention relates to a large open display cabinet, It has a back room as a product storage room behind the product display department. -(II) Prior art It is known that the large open display cabinet is as shown in Figure 4. This type of display cabinet has: a product display section 1 facing the store and having an opening in the front; a display cabinet for a backyard 2 in which supplementary products are stored behind the product display section 1, and the product A on the product shelf 11 is purchased. At this time, the hand inserts the front opening 12 from the inside of the store, and purchases the product A. On the other hand, when replenishing merchandise A on the merchandise rack 11, the merchandise A is taken out from the storage rack 21 of the backyard 2, and after the back door 1 3 of the merchandise display section 1 is opened, the merchandise rack 1 1 On the supplement. This display cabinet is constructed in a first-in-first-out manner and can simply be replenished from the backyard 2. In addition, in such a display case, in order to cool the products A in the product display section 1 and the backyard 2, a cold air duct device 3 having a cooling unit 31 is provided. This cooling unit 31 is disposed between the ceiling portion 14 of the merchandise display unit 1 and the ceiling portion 22 of the backyard 2 and is suspended from the ceiling portion 22 of the backyard 2 by a suspension metal fitting 33. When commodity A is kept cool, as shown by the solid arrow in Figure 4, the air in the backyard 2 passes through the cooling unit 31, where the generated cold air is opened in the front through the air duct 32. 12 The air curtain blows out, so that the product display unit 1 is kept cold, and the air-conditioning returns to the post-6-200303974 court 2 to pre-cool the stored goods A. However, in the display cabinet of the prior art, the front opening 12 of the merchandise display section 1 is formed across the bottom side of the backyard 2 from the ceiling section 14 to make the upper and lower dimensions of the air curtain very long. However, due to the long size of the air curtain, the speed of the air conditioner must be set quickly. However, as the wind speed of the air curtain becomes faster, although it is possible to prevent air from entering the store or the cold air leaking from the store display 1 into the store, the wind speed is so fast that it enters the product display. The cold air in the upper part of the section 1 is reduced, so that there is a problem that the upper display commodity A is not too cold, and therefore the required refrigerating capacity of the freezer must be increased, so the cooling efficiency of the commodity display section 1 becomes lowered. To solve this problem, consider using a double air curtain structure commonly used in open display cabinets. In order to adopt this kind of double air curtain structure, although a cooling unit 31 and other cold air path devices must be provided on the installation space 23, this installation space 23 is used as a commodity storage space as shown in FIG. 4 In fact, it is no longer possible to set other air path devices. (3) Summary of the Invention The present invention has been developed in view of the problems of the prior art, and its purpose is to provide a large-scale open display cabinet which can utilize a double air curtain structure to reduce the required refrigerating capacity. Fresh air is prepared above the ceiling section of the product display section and an outside air path device is provided. In order to solve the above-mentioned problem, the present invention provides a large-scale open display cabinet, which includes: a merchandise display section facing the store and having an opening in the front; a rear chamber for storing supplementary products and the like behind the merchandise display section; Display_7-200303974 A cold air duct device with an air curtain formed on the front opening. The cooling unit of this air duct device is located in a large open display cabinet between the ceiling section of the merchandise display section and the ceiling section of the backyard. It has an outer air path device which forms a structure of another air curtain on the outside of the air curtain through the gap between the cooling unit and the ceiling portion of the backyard. According to the present invention, the air in the rear courtyard is driven between the cooling unit and the ceiling portion of the rear courtyard using the drive of the outer air path device to blow out the front opening to form an air curtain. Because this air curtain is formed on the outside of the air curtain of cold air passing through the cooling unit, a double air curtain is formed on the front opening. (Four) Embodiments of the Invention Embodiments 1 to 3 are views showing the present invention. One embodiment of the large open display cabinet is shown in Fig. 1. Fig. 1 is a side sectional view of the large open display cabinet, Fig. 2 is a plan view showing an outer air path device, and Fig. 3 is a perspective view showing an assembly of a suspended metal fitting. . The large open display cabinet of the prior art shown in FIG. 4 is the same as the same component and is represented by the same symbol. The large-scale open display cabinet is integrally formed by the product display section 1 displaying the product A and the backyard 2 storing the product A supplemented on the product display section 1. Therefore, the front opening 12 of the product display section 1 faces toward the shop. On the other hand, the opening, on the other hand, communicates with the backside 2 of the merchandise display unit 1. The merchandise display section 1 is provided with a plurality of merchandise racks 11 in the horizontal direction. The merchandise A on the merchandise rack 11 is taken out from the shop through the front opening 12. On the other hand, a small back door 13 is provided on the back of the merchandise display section 1, and when merchandise A is added to the merchandise rack 1 1 at-8-200303974, the merchandise A on the storage rack 21 in the backyard 2 is taken out first. Alternatively, the commodity A placed on the ceiling portion 14 of the commodity display unit 1 is opened, and the back door 13 is opened to supplement the commodity rack 11. The merchandise display unit 1 or the backyard 2 constituted in this manner includes a cold air duct device (hereinafter referred to as an inner air duct device) 3 and an outer air duct device 4 as cooling devices. The internal air path device 3 is provided with a cooling unit 31 in an installation space 23 formed between the ceiling portion 14 of the merchandise display portion 1 and the ceiling portion 22 of the backyard 2. The cooling unit 3 1 includes a cooler 3 1 1 and an inner air circulation fan 3 1 2. The inner air circulation fan 3 1 2 is used to flow the air in the backyard 2 to the cooler 3 1 1. 1 The structure in which the cooled air becomes cold air and is blown out in the inner blow-out duct 32. In addition, the cooling unit 31 is a cooler 3 11 and the upper part of the inner air circulation fan 3 1 2 is covered by a unit cover 3 1 3, and the unit cover 3 1 3 is fixed to the rear by a suspension metal fitting 3 3 The ceiling part 22 of the court 2 is on. The structure of this suspension metal fitting 33 is explained mainly with reference to FIGS. 2 and 3. This suspension metal fitting 3 3 is composed of a ceiling fixing bracket 331 spaced from the front and rear ends of the unit cover 3 1 3 and outward, and each ceiling fixing bracket 3 3 1 is arranged to be arranged with each other. It consists of spaced unit fixing brackets 3 3 2. Each ceiling fixing bracket 3 3 1 buckles up and down in stages, and the screws 3 3 1 c are fixed to the ceiling portion of the backyard 2 through a plurality of screw holes 3 3 1 b through the upper plate 3 3 1 a. 22 on. On the other hand, the unit fixing bracket 332 is disposed between the unit cover 3 1 3 and the ceiling portion 22, and both ends thereof are fixed to the respective ceiling fixing brackets 3 3 1 by screws 3 3 2 a as shown in FIG. 3. The lower plate 200303974 3 3 1 d is fixed to the cooling unit 31 with screws (screws 3 3 2 b) between the two ends through the unit cover 3 1 3. Therefore, the cooling unit 31 is suspended and fixed on the ceiling portion 22 of the backyard 2. On the other hand, as shown in Fig. 1, the outside air path device 4 includes an outside air circulation fan 41 arranged in front of the cooling unit 31. The suction side of the outside air circulation fan 41 is facing the inside of the back chamber 2 and can suck the air in the back chamber 2. In addition, the outside air path device 4 has a series of ventilation structures that allow the air sucked in by the outside air circulation fan 41 to be introduced into one of the outside blowing air ducts 42. This ventilation structure is formed by the suspension metal fitting 3 3 and the unit cover 3 1 3. The structure will be described with reference to FIGS. 2 and 3. That is, the cross section of the unit fixing bracket 3 3 2 of this suspension metal fitting 33 is approximately U-shaped. Therefore, the space between the ceiling portion 22 and the unit cover 3 1 3 is formed only at the height of the unit fixing bracket 332. Clearance (outside ventilation path 43 1). The front and rear ceiling fixing brackets 331 are arranged outside the front and rear end portions of the unit cover 313. Therefore, a gap is formed between the rear ceiling fixing bracket 3 31 and the rear end of the unit cover 3 1 3, and this gap serves as a ventilation inlet 432 where the outside ventilation path 431 communicates with the outside air circulation fan 41. In addition, a gap is formed between the front ceiling fixing bracket 3 3 1 and the front end of the unit cover 3 1 3, and this gap serves as a ventilation outlet 4 3 3 that communicates with the outside blowing duct 4 2 and the outside ventilation path 4 3 1. Therefore, as shown in Figs. 1 and 2, the air sucked in by the outside air circulation fan 41 flows through the ventilation inlet 4 3 2 to the ventilation outlet 4 3 3, and then blows out of the air duct through the ventilation outlet 4 3 3 4 2 Blow out 〇 Use the above inside ventilation device 3 and outside ventilation device 4 to circulate the air in the rear -1 0-200303974 court 2. Here, the air circulated by the inner ventilator 3 is cooled at the cooler 311 as indicated by the solid line arrows in the first figure, and then blows out of the air duct 32 to the air rectifier 15. Then, the cold air blown from the air rectifier 15 flows downward in the front opening 1 2 of the product display section 1 and forms an inner air curtain in the front opening 12. The cold air sent below passes through the suction port 16 and reaches the lower passage 17, and then returns to the back chamber 2 by using the lower circulation fan 18. On the other hand, the air circulated by the outer ventilation device 4 flows to the outer ventilation path 4 3 1 (circulatedly flows through the cooler 3 1 1) as indicated by the dotted arrow in the first figure, and then blows out the air duct 42 through the outer side. And flow to the air rectifier 1 5. Then, the cold air blown from the air rectifier 15 flows downward in the front opening 12 of the product display section 1, and the front opening 12 forms an outer air curtain. The cold air sent from below passes through the suction port 16 to the lower passage 17 and is returned to the back chamber 2 by the lower circulation fan 18. According to the large open display cabinet according to this embodiment, an air curtain of cooled air cooled by a cooler 3 1 1 can be formed inside the opening 12 in front of the product display section 1, and a non-cooled outside of the air curtain of cold air can be formed. Therefore, a double air curtain having a different temperature is formed, so that the cooling efficiency of the product display section 1 can be improved, and the required refrigeration capacity can be reduced. In addition, the outer ventilation path 4 3 1 of the outer ventilation device 4 uses a space (dead corner) in which the hanging metal fitting 3 3 is used when the cooling unit 3 1 is installed on the ceiling portion 22. The upper and lower dimensions do not become larger, and the existing installation space 2 3 -points do not need to be changed. This installation space 2 3 can use the same space as the prior art for placing the product A. -1 1-200303974 Moreover, the inside air circulation fan 3 丨 2 of the inside air path device 3 and the outside air circulation fan 4 丨 of the outside air device 4 are separately installed, and the ventilation path will not interfere with each other. Therefore, the cooler 3 1 1 The heat exchange capacity also maintains the same capacity as the large open display cabinets of the prior art. Advantageous Effects of Invention As described above, according to the present invention, an air curtain for cooling unit-cooled cold air can be formed on the inside of the front opening of the merchandise display section, and a non-cooled air curtain can be formed on the outside of the cold air curtain. Therefore, a double air curtain with different temperatures is formed, so that the cooling efficiency of the product display department can be improved, and the required refrigeration capacity can be reduced. In addition, the outside air path device is used to drive the air in the backyard through the gap between the cooling unit and the ceiling portion of the backyard and blow out from the front opening. Therefore, the existing gap can be used as the outside air path device. Ventilation channels, so the overall size of each air path device does not increase. (5) Brief description of the diagram. Figure 1 is a side sectional view of a large open display cabinet of the present invention; Figure 2 is a plan view showing an outer air path device; Figure 3 is a perspective view showing a configuration of a suspension metal fitting; Figure 4 is a side sectional view of a large open display case of the prior art. Explanation of symbols A Product 1 Product display department 2 Backyard 3 Inner air duct device-1 2-Outer air duct device
商品架 前面開口 背面小門 天花板部 空氣整流器 吸入口 下側通路 下部循環風扇 儲藏架 天花板部 設置空間 冷卻單元 內側吹出風道 懸吊金屬配件 外側空氣循環風扇 外側吹出風道 冷卻器 內側空氣循環風扇 單元蓋子 天花板固定托架 螺絲孔 上板 下板 200303974 33 1c 螺 絲 332 口口 早 元 固 定 托架 3 3 2 a , 3 3 2 b 螺 絲 43 1 外 側 通 風 路 432 通 風 入 □ 433 通 風 出 □ -14-Commodity rack front opening, back side, small door, ceiling, air rectifier, suction port, lower side, lower circulation fan, storage space, ceiling, installation space, cooling unit, inside air duct, hanging metal fitting, outside air circulation fan, outside air duct, cooler, inside air circulation fan unit Cover ceiling fixing bracket screw hole upper plate lower plate 200303974 33 1c screw 332 mouth early element fixing bracket 3 3 2 a, 3 3 2 b screw 43 1 outside ventilation path 432 ventilation inlet □ 433 ventilation outlet □ -14-