CN1132061A

CN1132061A - Rear-carried refrigerating showcase

Info

Publication number: CN1132061A
Application number: CN95119751A
Authority: CN
Inventors: 须藤晴彦
Original assignee: Fuji Electric Co Ltd
Current assignee: Fuji Electric Co Ltd
Priority date: 1994-11-21
Filing date: 1995-11-21
Publication date: 1996-10-02
Anticipated expiration: 2015-11-21
Also published as: JPH08145534A; CN1087159C; KR960016807A

Abstract

The invention provides a type of rear load freezing show case reduce thermal load applied on a refrigeration warehouse following a combination of freezing show cases, and hence prevent stored goods from being damaged for the freezing show case installed on the side of a shop counter parallely with the opening in the refrigeration warehouse so as to directly carry a goods exhibition cast from the goods keeping refrigeration warehouse. A case body 5 includes a ceiling part 6 where there are assembled as condenser 10 and a fan 11 in a ventilation duct with its rear end surface opened toward the refrigeration warehouse, a front part 16 located on lower part of the front surface incorporating a fan 15, and a drawer door back surface door 17 for carrying in the curt. Further, a cold air circulation duct 19 is provided on the back surface door, and part of a cold air stream is circulated to the refrigeration warehouse, and further remaining cold air is circulated in the show case after passage through the duct.

Description

Rear-carried refrigerating showcase

The present invention relates to a kind of back that is used for exhibiting and selling freezing commodity in the mega-store such as supermarket that is installed in and load (rear load) formula refrigerated display case.

The utility model patent communique discloses a kind of refrigerator display case equipment that is arranged at the shop salesroom (saleroom) among the real public clear 51-30215 etc.For to wherein can be simply, fill-ins promptly, in the shop, be provided with the freezer of depositing commodity, with be located at the shop in the refrigerator display case of salesroom (saleroom) link to each other, thereby its formation can directly be moved into (back load mode) refrigerated display case in the showcase from behind by the go-cart that the opening of freezer is used merchandise display.

This refrigerator display case equipment makes a part of cold air that comes from freezer stream be obtained by the refrigerator display case body, when its front upper place forms the cold air air curtain that blows out, after by the leading section preceding bottom that is arranged on showcase, that fan is equipped with in inside this air curtain cold airflow being reclaimed, be back to the air-supply that circulates in the freezer through the showcase bottom surface side again, thereby freeze being placed on merchant's mouth of exhibiting and selling on the handcart.And, after this refrigerator display case equipment can make and be put into commodity on the handcart, carry out gondola sales directly move in the cabinet of refrigerator display case not by the path of shop salesroom (saleroom), from freezer after in freezer.

Though under the refrigerator display case of refrigeration specifications (about the about 2-7 of serviceability temperature ℃) such as sales exhibition a dairy produce, lean meat, fresh fish and occasion that freezer is used in combination, it is less that freezer is accepted heat, but when the refrigerated display case of the freezing specification (serviceability temperature is below-18 ℃) that is used to exhibit and sell frozen food etc., heat affecting to freezer is just bigger, can produce the problem of cold insulation aspect of performance as described below.

The storehouse temperature of depositing the freezer of frozen food maintains about-25 ℃, and on the other hand, with as mentioned above, the cold air that flows into from freezer is formed after the air curtain that cupboard blows out previously, makes whole air quantity of the air curtain cold air that reclaims at leading section be back to the mode of freezer, with the air curtain is media, high temperature around can being involved in, many wet air, the whole air quantity that contain wetly recovery air-flow that temperature are elevated to about-5 ℃ are back in the freezer.And the air quantity of the cold airflow of circulating ventilation is quite big between freezer and showcase, has increased the thermic load of freezer thus.Consequently, because the refrigeration output of the chiller assembly of device in freezer does not have abundant surplus, the storehouse temperature of freezer is risen, make the frozen food that just leaves in the freezer become thawed state, on the packing of commodity, adhere to and a large amount of freeze frost, the problem that makes food be subjected to bigger damage is arranged.

And, when considering that the shop runs into holiday, the night equal time showcase that also will shut down, self the cooler that big refrigeration output is arranged of the needed refrigerating capacity of cold insulation that therefore will be provided with in freezer above freezer also is disadvantageous economically.

The present invention makes for the problem that solves above-mentioned prior art existence.Its purpose is to provide a kind of back type to freeze showcase, and its formation addresses the above problem, and can alleviate the thermic load of bringing to freezer with the combination of refrigerated display case, thereby can avoid depositing the damage of commodity.

In order to achieve the above object, rear-carried refrigerating showcase of the present invention is being provided with and can be being reclaimed the back to the cold air that forms the air curtain that blows out previously to the cupboard body, wherein a part of cold air is being back to freezer one side and circulating cold air ajutage device that remaining cold air is circulated in showcase.

Specifically, the refrigerated display case that is provided with above-mentioned circulating cold air ajutage device is provided with rear end face is being adorned the top of being made up of cooler, fan in the ventilation shaft of freezer opening; The inside adorning the fan that sucks air curtain and use, at the leading section of cupboard front lower; Move into and be used for the sliding door type back door of handcart of exhibition shop, the circulating cold air pipeline that between the ventilation shaft at the bottom surface side of cupboard and above-mentioned top be communicated with overlapping with the back door also is being set.

Also can constitute the top of cupboard body with above-mentioned circulating cold air mode accordingly, as described below.

(1) be provided with the vented cavity that sucks cold air, the vented cavity of this suction cold air is in the top of cupboard body, at the rear portion of isolated ventilation shaft, along the many desk fans of vertical arrangement of cupboard; And alternately be separated out accordingly with the configuration of said fans: oral area is opened in first cold air sucting inlet on the back of freezer behind and oral area second cold air sucting inlet on being opened in below the ventilation shaft at back door.

(2) isolated ventilation shaft in the cupboard bodies top is partitioned into the middle air curtain that the interior air curtain that cooler is housed blows out pipeline and do not adorn cooler and blows out pipeline; And the upper face side at the top is provided with inside cooler, fan is housed, and leaked-in air around in the shop is formed the outer air curtain pipeline that blows out previously to the cupboard body.

By above-mentioned structure, the cold air air curtain that blows out previously to the cupboard body after leading section reclaims, make a part of cold airflow wherein be back to freezer from below that bottom surface side passes through later mouthful, pass through and rising in the circulating line that remaining cold air is set up on the sliding door type back door, be inhaled into the vented cavity of suction cold air at top from the upper end of pipeline after, with from the cold air of freezer one side inflow interflow, and then form the interior air curtain that blows out previously to the cupboard body and middle air curtain and circulation air-supply in showcase.Because under this occasion, above-mentioned circulating cold air pipeline and back door are provided with overlappingly, thus after the back door is opened, when the carrying merchandise show is used showcase between cupboard and freezer, will not be influential to the operation of coming in and going out.Again owing to form by the chilled outer air curtain that blows out to the outside of middle air curtain of cooler in the cupboard front, thus can prevent high temperature, many wet ambient outside air be rolled in the air curtain with middle air curtain in.

Like this, to be back to the cold air air quantity of freezer from freezer again through goods showing cabinet just passable with more a spot of, therefore can reduce the thermic load of freezer recruitment, can reduce the moisture quantity that invades in the freezer.Therefore, be arranged on the capacity of the chiller assembly in the freezer as long as employing is just more passable than the more a little surplus of refrigerating capacity of the freezing load of balance freezer itself, the commodity that can avoid preferably being stored in the freezer are hindered bad (being the rising of commodity temperature, frosting etc.).

And, in the top of cupboard body, in the rearward end of the ventilation shaft that is separated, the vented cavity of the suction cold air that is provided with combination of fans ground has can make from the cold air of freezer one side inflow and sucks with flow the circulation cold air air quantity ratio in accordance with regulations of coming through circulating cold air pipeline set on the back door, and makes the function that their mix in the downstream of fan.

Below, with reference to accompanying drawing 1-4 embodiments of the invention are described.

Fig. 1 is the longitudinal sectional drawing of structure of the freezing goods showing cabinet of back load mode of the expression embodiment of the invention,

Fig. 2 is the cross-sectional view of refrigerated display case shown in Figure 1,

Fig. 3 is the outward appearance oblique view at the back door of the band circulating cold air pipeline in the expression refrigerated display case shown in Figure 1,

Fig. 4 is the structure of the vented cavity of the suction cold air in the expression freezing goods showing cabinet shown in Figure 1; Fig. 4 a is the cross-sectional side view of pattern ground expression; The oblique view of the overall appearance that Fig. 4 b sees from rear side.

In Fig. 1, Fig. 2,1 is provided in a side of the freezer that the indoor preservation commodity in shop are used, at the salesroom (saleroom) 2 in shop, with the opening 1a of freezer 1 handcart 3 that can directly exhibition shop be used is being set communicatively and is transported to the rear-carried refrigerating showcase 4 (being open-shelf goods showing cabinet) that constitutes in the cupboard from freezer 1.

Wherein, the cupboard body 5 of refrigerated display case 4 be make front, back and bottom surface can be opened, about, the bottom of top, front sets the vertical adiabatic basket of adiabatic wall, at the top 6 li be divided into interior conduit 7 that the air curtain blow-off outlet opens previously towards cupboard, intermediate conduit 8 and by above the Outer Tube 9 of a side.And 7 li intercooler 10 is being set at interior conduit, in the rearward end at top 6, adorning the vented cavity 12 (detailed structure will illustrate in bottom) of the suction cold air that many desk fans 11 are being set.In addition, in Outer Tube 9, also be installed with external fan 13 and outside cooler 14.

On the other hand, leading section 16 is being set in the front lower of cupboard body 5, adorning in its inside be used for fan 15 that air curtain sucks and also thereon end face offering the leading section 16 of air curtain suction inlet; At the back side of cupboard body 5, the back door 17 of sliding door type is installed by the track 18 of hanging, on the cupboard medial surface at this back door 17, overlapping with each fan door, all cool cycles pipelines 19 of opening of upper and lower end face are being set with being integral.And in Fig. 2, the 20th, the framework about being provided in, the 21st is provided in the central frame in the middle of the framework 20, by these frameworks 20,21, top 6, leading section 16 is coupled together each other, constitutes vertical cupboard body 5.Though do not have expression among the figure, can arrange multilayer up and down, be mounted to the multiple field store shelf across ground 20,21 of said frame fully.

Fig. 3 is the oblique view of the assembly structure outward appearance at the above-mentioned back door 17 of expression, be provided with below the door-plate and the bottom surface between offering the dividing plate 22 of a plurality of cold air air vent 22a.

The (a) and (b) of Fig. 4 are structure charts of the vented cavity 12 of the above-mentioned suction cold air of expression, it is on the inclined plane of the section framework triangular in shape of back, lower aperture, along the many desk fans 11 of its vertical arrangement, and it is they are spaced apart with the next door each other, simultaneously in the back, following every empty compartment of terrain covers lastblock cover plate 23, thus they alternately formed mutually back side suction inlet 24 (first cold air sucting inlet) and following suction inlet 25 (second cold air sucting inlet).Wherein, freezer 1 opening of back suction inlet 24 in Fig. 1; Following suction inlet 25 then is to be involutory with the upper opening end face that is arranged on the circulating cold air pipeline 19 on the back door 17.

With above-mentioned structure, make freezer 1, refrigerated display case 4 carry out the cold insulation running, the handcart of exhibition shop being used from freezer 13 is transported on the certain position the cupboard of refrigerated display case 4, and back door 17 shut after, inside and outside three layers interior air curtain A, the middle air curtain B that between the suction inlet of the air curtain blow-off outlet at top 6 and leading section 16, blows out in cupboard body 5 fronts, formation and outside air curtain C; By these air curtains cut off hot outside from around invade in the cupboard of goods showing cabinet, the freezing commodity that are displayed on the handcart 3 are carried out cold insulation.

With above-mentioned structure, cold airflow D that obtains from the inside, storehouse of freezer 1 and the air-flow E that in goods showing cabinet, circulates through circulating cold air pipeline 19, be inhaled into after the vented cavity 12 of suction cold air at top 6 with certain air quantity ratio, collaborate in its downstream, be divided into two strands of ground then again and in interior conduit 7, intermediate conduit 8, shunt, form the interior air curtain A, the middle air curtain B that blow out previously to cupboard.The cold air that flows in interior conduit 7 is cooled to storehouse internal temperature same degree with freezer 1 by intercooler 10.And the extraneous air that flow into 9 li of Outer Tubes around the goods showing cabinet 4 is cooled to form outer air curtain C, and blow out to the outside of cupboard front after the low temperature by outer cooler 14, and internal gas curtain and middle gas curtain A, B protect.Then, the cold airflow of interior air curtain A that leading section 16 is recovered and middle air curtain B by the air-supply of fan 15, in the cupboard bottom side the bottom surface and flow to the rear, rear end at cupboard, part cold air constitutes returned cold air-flow F and passes through the following side of door 17 later and be back to 1 li of freezer, remaining cold air then flows into 19 li of the circulating lines that are arranged on the back door 17, forms above-mentioned circulation cold airflow E, is inhaled into 12 li circulation air-supplies in showcase of vented cavity of the suction cold air at top 6 again.

If be illustrated in the cold air temperature that flows in the each part mentioned above, then be that the storehouse temperature of freezer 1 and the temperature that blows out of interior air curtain A are-25 ℃ with numerical value; The temperature that blows out of middle air curtain B is-15 ℃; Environment temperature be taken as 25 ℃, then outer air curtain C to blow out temperature be 15 ℃, the cold air temperature that sucks from leading section 16 is 5 ℃.Under this condition, the temperature in the cupboard of freezing goods showing cabinet 4 remained on the freezing commodity that will be displayed in below-18 ℃ on the handcart 3 become freezing state ground cold insulation in addition.

As mentioned above, having rear-carried refrigerating showcase of the present invention is that handle is to the cupboard basis The body front blows out the cold airflow that forms air curtain, after leading section reclaims, make a part wherein Be back to freezer, remaining cold air is circulated in showcase through the circulating ventilation pipeline Ground ventilates. Whole air quantity that this and former making are flow through in the showcase all are from freezer one side Flow into and its mode that all is back to freezer is compared, not only can alleviate along with old The combination of row cabinet and the thermic load of the freezer that brings increases, and can alleviate because with display The air curtain of cabinet is that media is brought into the moisture in the freezer. Like this, be arranged in the freezer The refrigeration output of chiller assembly as long as than the ability of the freezing load of balance freezer itself A little more just enough; Again owing to can make through being back to refrigeration behind the freezing goods showing cabinet High temperature in the storehouse, the air of high humidity reduce, thereby have just reduced leaving in the freezer The misgivings of frozen food damaged.

And for example described in the application's claim 2 like that because above-mentioned circulating ventilation pipe The road is to be formed by the pipeline on the back door that is arranged on showcase, thereby merchandise show is used The moving into, take out of without any obstacle of handcart. Again because between the top of cupboard body The ventilation shaft rearward end that separates is provided with the application's suction cold air claimed in claim 3 Vented cavity, thereby can make the cold air that obtains from freezer and be arranged on above-mentioned back door through above-mentioned On circulating line and in accordance with regulations air quantity ratio of the circulation cold air that comes, in ventilation shaft, close Stream blows out formation with cold air curtain to the cupboard front thereby can distribute with mean temperature.

In addition, because the present invention has adopted structure as claimed in claim 4, namely at cupboard The top of body is provided with the Outer Tube that cooler is equipped with in inside, and forms top blast before the cupboard The outer air curtain of the low temperature that goes out, thereby can further improve the wind that prevents in the outside hot-air intrusion cabinet The curtain heat-proof quality.

Claims

1, a kind of rear-carried refrigerating showcase, it is arranged at the salesroom (saleroom) in shop and links to each other with the opening that is used as the freezer of depositing commodity in being arranged on the shop, commodity can directly be moved into from freezer in this rear-carried refrigerating showcase, this showcase is provided with and comprises from the front that the freezer side is obtained the cupboard body of cold air and blow out the air-supply arrangement that forms the cold air air curtain, and it is characterized in that: it is provided with the apparatus for cold air circulation that makes its part flow back into freezer, its remainder is circulated after the recovery of the cold air in the air curtain in goods showing cabinet.

2, rear-carried refrigerating showcase as claimed in claim 1 is characterized in that: this showcase has and can move into the go-cart that the merchandise display of this showcase is used by freezer through the opening of freezer.

3, as claim 1 and 2 described refrigerated display cases, it is characterized in that: be provided with in the cupboard body: at the top of rear end face being assembled cooler, fan in the ventilation shaft of freezer opening; The inside adorning the fan that sucks air curtain and use, at the leading section of cupboard front lower; Sliding door type back door, and the gas circulating line that is communicated with the ventilation shaft at above-mentioned top with the overlapping bottom surface side in back door at cupboard.

4, rear-carried refrigerating showcase as claimed in claim 3, it is characterized in that: it is provided with the vented cavity that sucks cold air, and this vented cavity is in the top of cupboard body, at the rear portion of isolated ventilation shaft, is arranged with many desk fans along the direction of the length of cupboard; And alternately separate accordingly with the configuration of said fans and to be provided with first cold air sucting inlet and second cold air sucting inlet, this first cold air sucting inlet is towards freezer behind, opening backward, this second cold air sucting inlet is towards the ventilation duct at back door, Open Side Down.

5, the freezing goods showing cabinet of back load mode as claimed in claim 3 is characterized in that: it is isolated ventilation shaft in the cupboard bodies top to be partitioned into the middle air curtain that the interior air curtain that cooler is housed blows out pipeline and do not adorn cooler blow out pipeline; And the upper face side at the top is provided with inside cooler, fan is housed, the pipeline of the outer air curtain that leaked-in air around in the shop is blown out previously to the cupboard body.