CN1112886C

CN1112886C - Open showcase

Info

Publication number: CN1112886C
Application number: CN96104025A
Authority: CN
Inventors: 甘利洋一; 田中努; 大关友树; 泷泽敬
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 1995-02-28
Filing date: 1996-02-27
Publication date: 2003-07-02
Anticipated expiration: 2016-02-27
Also published as: KR960030858A; CN1146887A; JP3213505B2; KR100212290B1; JPH08233433A

Abstract

An open showcase wherein a cold air curtain is formed at an opening of a storage chamber. The open showcase is equipped with a heat insulating wall which is constituted of a heat insulating material is provided in a space defined by an external surface member, an internal surface member and a connecting member with a low heat conductivity to connect the end parts of both external and internal surface members; a dividing plate which is provided on the inside of the heat insulating wall with an interval; a duct which is formed between the dividing plate and heat insulating wall; a discharging port for the air curtain which is formed so as to communicate with the duct; and partition member which partitions the outside of the discharging port. The partition member is formed of a material with a low heat conductivity, and the internal surface member on this side of said connecting member is covered with the partition member.

Description

Open showcase

The present invention relates to a kind of open showcase that can form the cold air air curtain at the storeroom opening part.

An example of original this open showcase shown in the real public clear 52-301 communique of Japan (F25D17/06), is dividing plate (inwall) to be set to form at interval at the place, inboard of thermal wall; Be provided with pipeline between dividing plate and the thermal wall, the inboard of dividing plate is formed with storeroom, and the front openings upper limb at this storeroom is formed with the outlet that is connected with pipeline, is discharged to opening direction by the cold air that this outlet is discharged, thereby can form the cold air air curtain at opening part.

Structure below with reference to the original open showcase 100 of description of drawings.Fig. 9 is the profilograph of original open showcase 100 upper front end of expression.The thermal wall 102 of front openings is by the outside parts 103 and the interior face component 104 of steel plate system, be contained in outside parts 103 corner part, be used to keep the interval of 103,104 of two face component and the moulding heat-barrier material 106 that exists, and the foam polyurethane heat-barrier material 107 that is filled in 106 in this two face component 103,104 and moulding heat-barrier material constitutes.

Place, inboard in thermal wall 102 is provided with the dividing plate 108 that is used to form steel plate system at interval, is formed with the storeroom 111 of band front openings in the inboard of dividing plate 108, and is provided with pipeline 112 between this dividing plate 108 and thermal wall 102.The upper wall front end of aforementioned separator plate 108 opening 109 place's oblique bendings downwards, thus joggling part 108A formed.In the outside (the place ahead) of this joggling part 108A, promising formation at interval also is set and the distance member 113 that is provided with.

This distance member 113 is made by steel plate, and its rear portion is crooked in obtuse angle and form installation portion 113A, and end 113B is at right angles crooked to the inside thereafter.And, with screw this installation portion 113A is fixed on the interior face component 104, and to rise thus along installing to the mode of oblique below stretching, extension with joggling part 108A parallel direction.And, between distance member 113 and joggling part 108A, also be formed with the outlet 116 that is connected with pipeline 112.In this outlet 116, honeycomb-like part 117 is housed also.

Front face side at this distance member 113 also is equipped with section moulding heat-barrier material 118 triangular in shape, in the place ahead (outside) of outlet 116 steel reflecting plate 119 is housed also simultaneously, and the lower end of this reflecting plate 119 engages with the lower end of aforementioned moulding heat-barrier material 118.And, in the inboard of this reflecting plate 119 fluorescent lamp 121 is housed also, as illuminating lamp, simultaneously, the anti-condensation heater 122 that is positioned at 118 in moulding heat-barrier material is housed also in the outside of this reflecting plate 119.

In the above-described configuration, the cooler and the pressure fan of not shown cooling device is housed also in the described pipeline 112, blows by pressure fan, discharge to opening 109 directions by outlet 116 after the inside by pipeline 112 by the chilled cold wind of cooler.So just, can form the cold air air curtain at these opening 109 places, simultaneously a part of cold air is circulated in storeroom 111, and then make cooling in the storeroom 111.

Yet, because the cold air of discharging can make distance member 113 coolings, thus the part that contacts with extraneous air at distance member 113, promptly at the connecting portion of 119 of the leading section of distance member 113 and moulding heat-barrier material 118 and reflecting plates, can produce dewfall F as shown in figure 10.This dewfall can form water droplet and drip, and then pollutes the surrounding environment of open showcase 100, and the quality that is stored at the commodity in the storeroom 111 is descended.

Also available heat insulation to distance member 113, or heat above-mentioned connecting portion and the mode that prevents dewfall is installed aforementioned moulding heat-barrier material 118 and anti-condensation with heater 122.But because original distance member 113 is to make with the good thermal conductivity steel plate that easily is cooled, thus exist the thickness of this moulding heat-barrier material 118 must be thicker, the capacity of anti-condensation heater 122 must be bigger etc. problem.Here, the light (radiant heat is shown in the triangle among Figure 10) that produces when fluorescent lamp 121 is lighted is heated reflecting plate 119, so the light that fluorescent lamp 121 sends can not shine above-mentioned connecting portion, so can not expect to produce the effect that prevents dewfall with fluorescent lamp 121.

In addition, when freezing under the cold air effect that this dewfall is being discharged, also can upset air-flow and discharge, and be difficult to form stable cold air air curtain from outlet 116.And when original distance member 113 is installed, be in screw this installation portion 113A being installed in flooring 104 on the face of pipeline 104 1 sides, so can be shown in the broken broken line among Figure 11, deviation can take place in its installation site, simultaneously can be because of its weak strength, and shown in the broken broken line among Figure 12, deviation also can take place in its setting angle.So the assembly precision of distance member 113 is not high, there is the problem that forms the stable air air curtain with aforementioned identical being difficult to.

The objective of the invention is to solve the problem that exists in original technology, a kind of open showcase is provided, it can prevent from can form stable air air curtain simultaneously for forming dewfall on the distance member that is provided with at interval in this outlet outside effectively.

Invention 1 provides a kind of open showcase, thermal wall and side plate by front openings constitute, inboard at this thermal wall and side plate forms storeroom, form the cold air air curtain at this storeroom opening part, described thermal wall is made of the heat-barrier material between the low heat conductivity attaching parts between two sides ends inside and outside being filled in outside parts, interior face component and being connected this; Described display case has: be located at the thermal wall inboard, to form dividing plate at interval; The pipeline that between this dividing plate and aforementioned thermal wall, forms; Become the outlet of the described air air curtain that is communicated with pipeline; And the distance member for being provided with at interval in this outlet outside formation, and this distance member is made by low thermal conductivity material; It is characterized in that: answering by the distance member lid with the end of the discontiguous described inner part that exposes of described attaching parts.

The open showcase of the present invention that invention 2 limits, be a kind of in above-mentioned open showcase, make the described inner face ends that is positioned at the attaching parts front bend to the bight, make distance member simultaneously and form the open type display case of one with the contacted jut in described bight.

Invention 3 provides a kind of open showcase, thermal wall and side plate by front openings constitute, form storeroom in the inboard of this thermal wall and side plate, form the cold air air curtain at this storeroom opening part, described display case have be arranged on the thermal wall inboard, to form dividing plate at interval; The pipeline that forms between this dividing plate and described thermal wall becomes the outlet of the aforementioned air air curtain that is communicated with pipeline; And for forming the distance member that is provided with at interval in this outlet outside; It is characterized in that: this distance member is the inner hollow body.

The open showcases of the present invention that invention 4 limits are a kind of lateral walls that are made of distance member in above-mentioned open showcase soft heat-barrier material, and the open showcase that connects airtight with described thermal wall.

Invention 5 provides a kind of open showcase, thermal wall and side plate by front openings constitute, and form storeroom in the inboard of this thermal wall and side plate, form the cold air air curtain at this storeroom opening part, described display case has the inboard of the thermal wall of being arranged on, to form dividing plate at interval; The pipeline that between this dividing plate and described thermal wall, forms; Become the outlet of the aforementioned air air curtain that is communicated with pipeline; It is characterized in that described display case has: the reflecting plate that is positioned at this outlet outside; Be contained in the illuminating lamp of this reflecting plate inboard; And as distance member transition between described thermal wall and this reflecting plate,, and heat the anti-condensation heater of coupling part between this distance member and the described reflecting plate for being provided with at interval in this outlet outside formation; The bright above-mentioned attaching parts of sending with described illuminating lamp of illumination, and when this illuminating lamp extinguishes to described anti-condensation heater energising.

Invention 6 provides a kind of open showcase, thermal wall and side plate by front openings constitute, and form storeroom in the inboard of this thermal wall and side plate, form the cold air air curtain at this storeroom opening part, described display case has the thermal wall of being arranged on inboard, to form dividing plate at interval; The pipeline that between this dividing plate and described thermal wall, forms; Become the outlet of the aforementioned air air curtain that is communicated with pipeline; It is characterized in that: also have the distance member of making by hard resin that is positioned at this outlet outside, and the part of this distance member is made by soft system synthetic resin.

The open showcase of the present invention that adopts invention 1 to limit, owing to the distance member that is provided with at interval for formation outside this outlet is to be made by the material of low heat conductivity, so can reduce the temperature difference between contacted surface of distance member and extraneous air and extraneous air, thereby can be suppressed at dewfall on the distance member.And because the outside parts are connected by the low heat conductivity attaching parts with interior face component, and the face component that is positioned at this attaching parts front covered by aforementioned distance member and answering, so also can be suppressed at the dewfall on inside and outside two face component.Therefore, can cut down or eliminate heat-barrier material, reduce the capacity of anti-condensation, and can prevent pollution, commercial quality is descended, can also form stable air air curtain simultaneously the open showcase surrounding environment with heater.

The open showcase of the present invention that adopts invention 2 to limit, because except that These characteristics, the described inner face ends that is positioned at the attaching parts front also bends to the bight, and distance member and form one with the contacted jut in described bight, so when the installation interval parts, be easy to determine its position.And, owing to form bight and jut,, improve the installation accuracy of distance member, thereby can obtain high-precision stable air air curtain so can improve the intensity of interior face component and distance member self.

The open showcase of the present invention that adopts invention 3 to limit, owing to the distance member that is provided with at interval for formation outside this outlet is an inner hollow body, can form thermal insulation layer so be positioned at the air layer of distance member inside, thereby can reduce surface that distance member contacts with extraneous air and the temperature difference between extraneous air, be suppressed at dewfall on the distance member.Therefore, can cut down or eliminate heat-barrier material, reduce the capacity of anti-condensation heater, and can prevent pollution, commercial quality is descended, can also form stable air air curtain simultaneously the open showcase surrounding environment.

The open showcase of the present invention that adopts invention 4 to limit is because except that These characteristics, the distance member lateral wall is made of soft heat-barrier material, so can improve the heat-proof quality of distance member self.And since this lateral wall and described thermal wall connect airtight, so can block contacting of near the thermal wall of distance member and extraneous air.Therefore can further be suppressed on the distance member 23 and the dewfall of periphery.

The open showcase of the present invention that adopts invention 5 to limit, the illumination of sending owing to available aforementioned illuminating lamp is bright for form the distance member that is provided with at interval and the attaching parts between reflecting plate in this outlet outside, and when going out combustion, this illuminating lamp switches on to aforementioned anti-condensation heater, so can work as illuminating lamp when lighting, the radiant heat that sends with aforementioned illuminating lamp heats the attaching parts between distance member and reflecting plate, and when this illuminating lamp goes out combustion, implement heating with the anti-condensation heater.

Therefore, the electric power that anti-condensation heater 34 consumes can be reduced, and the dewfall on the above-mentioned connecting portion that can prevent from effectively to contact, and pollution can be prevented the open showcase surrounding environment with extraneous air, commercial quality is descended, can also form stable air air curtain simultaneously.

The open showcase of the present invention that adopts invention 6 to limit, owing to being positioned at making by hard resin of this outlet outside for forming the distance member that is provided with at interval, so can reduce the temperature difference between contacted surface of distance member and extraneous air and extraneous air, and be suppressed at dewfall on the distance member.Therefore, can reduce or eliminate heat-barrier material, reduce the capacity of anti-condensation heater, and can prevent pollution, commercial quality is descended, can also form stable air air curtain simultaneously the open showcase surrounding environment.

Special needs to be pointed out is, owing to the part of this distance member is made by soft resin, so can at random change its angle.Therefore, it goes for some kinds of highly different open showcases, thereby can further improve its practicality, reduces the cost of parts.

Below, describe embodiments of the invention with reference to the accompanying drawings in detail, wherein:

Fig. 1 is the open showcase profilograph of the expression embodiment of the invention;

Fig. 2 is the amplification profilograph of the upper front end of this open showcase;

Fig. 3 lights the amplification profilograph of this open showcase upper front end of state for fluorescent lamp;

Fig. 4 lights, extinguishes the time plot that energising is controlled with the anti-condensation heater for the explanation fluorescent lamp;

Fig. 5 is the amplification profilograph that the open showcase upper front end of another kind of spacing structure parts is housed;

Fig. 6 is the amplification profilograph that the open showcase upper front end of another spacing structure parts is housed;

Fig. 7 is the profilograph of distance member shown in Figure 6;

Fig. 8 is the distance member profilograph of another kind of structure;

Fig. 9 is the amplification profilograph of existing open showcase upper front end;

Figure 10 lights the amplification profilograph of the existing open showcase upper front end of state for fluorescent lamp;

Figure 11 is the amplification profilograph during the installation interval parts on existing open showcase;

Figure 12 has installed the amplification profilograph of distance member on existing open showcase for explanation.

Reference number in the accompanying drawing is

1 open showcase, 2 thermal wall

Face component 4A bight in the 3 outside parts 4

6 attaching parts, 7 heat-barrier materials

8 dividing plates, 11 storerooms

12 pipelines, 23 distance member 23C juts

26 outlets, 32 reflecting plates

33 fluorescent lamps (illuminating lamp), 34 anti-condensation heaters

51 madial walls, 52 lateral walls

53 air layers 54 are installed base portion

Fig. 1 is the profilograph of an embodiment open showcase 1, and Fig. 2 is the profilograph of this open showcase 1 upper front end of expression.Open showcase 1 can be arranged in the shop such as supermarket etc., and it is made of the thermal wall 2 of front openings and not shown side plate.This thermal wall 2 is by the outside parts 3 and the interior face component 4 of steel plate system, connect the attaching parts 6 of the low heat conductivity hard resin system between two face component, 2,3 ends, and the foam polyurethane heat insulating member 7 that is filled with that is connected 6 of two

face component

3,4 and attaching parts constitutes.

The front portion of described outside parts 3 is crooked to the inside, and its section slightly is コ shape, and the front portion of interior face component 4 is crooked laterally, and its section also slightly is コ shape.Attaching parts 6 are progressively reduce step-like towards the place ahead, overlapping above the front portion of the end of outside parts 3 and this attaching parts 6 minimum one-levels, and interior face component 4 contacts below its highest rear portion.Like this, when the bight 4A of interior face component 4 front ends exposed, this bight 4A and attaching parts 6 formed groove 6A in attaching parts 6 centre.

The place, inboard of thermal wall 2 is provided with the dividing plate 8 of steel plate system, to form at interval, forms the storeroom 11 that has front openings 9 in the inboard of this dividing plate 8, and form pipeline 12 between dividing plate 8 and thermal wall 2.Storeroom 11 internal frames are provided with ceiling 13, simultaneously, in the bottom of storeroom 11 cover plate 14 are set also.The lower rear of this cover plate 14 forms the lower pipeline 16 that is communicated with aforementioned pipeline 12, and the cooler 17 and the pressure fan 18 that comprise cooling device are housed in this lower pipeline 16.Cover plate 14 front sides also form and are positioned at suction inlet 19 opening 9 lower edge positions, that be communicated with lower pipeline 16.

On the one hand, the oblique bending of opening 9 directions downwards of the front end of dividing plate 8 upper walls forms joggling part 21.The outside of this joggling part 21 (the place ahead) also is set to form the distance member of establishing at interval 23.

This distance member 23 is by the extrusion modling of low heat conductivity hard resin, and its rear portion is crooked in obtuse angle, forms installation portion 23A, and rear end 23B is also at right angles crooked to the inside.And, be formed with the jut 23C that at right angles erect relative by the front end of installation portion 23A is also whole, and be formed with forwards open engagement groove 23D at the front end of distance member 23 with installation portion 23A.

And, corresponding by the corner part that aforementioned jut 23C and installation portion 23A constitute with the bight 4A of interior face component 4, the front of jut 23C and bight 4A contacts, and installation portion 23A and bight 4A below contact, and in screw this installation portion 23A being fixed on the face component 4, thereby in distance member 23 is fixed on the face component 4.

At this moment, jut 23C covers the previous section of exposing the interior face component 4 bight 4A in face of attaching parts 6, and rearward end 23B projects to pipeline 12 simultaneously.Distance member 23 is to be risen by bight 4A along installing to the mode of oblique below stretching, extension with joggling part 21 parallel directions.And, form the outlet 26 that is connected with pipeline 12 between distance member 23 and the joggling part 21.Being located in opening 9 upper limbs, in this outlet 26 honeycomb-like part 27 is installed also.

On the other hand, top board 31 is housed above the thermal wall 2, and extends to the top of opening 9 always.The steel reflecting plate 32 that is positioned at outlet 26 the place aheads (outside) also is housed on the inner face of this top board 31, and reflecting plate 32 rear ends engage with the engagement groove 23D of distance member 23.And the inboard of reflecting plate 32 (below) also is equipped with the fluorescent lamp 33 that is used as illuminating lamp.

Fluorescent lamp 33 following should install than the connecting portion (engagement groove 23D front end) 36 of reflecting plate 32 and distance member 23 also by time, like this, when fluorescent lamp 33 was lighted, shown in the triangle among Fig. 3, the light that fluorescent lamp 33 sends also can illuminate above-mentioned attaching parts 36.In addition, in reflecting plate 32 outsides anti-condensation heater 34 is housed also, it is positioned at the interval of distance member 23.Here, can be shown in the time plot of Fig. 4 like that, light (ON) described fluorescent lamp 33 when opening the door in the shop, extinguish at closing time (OFF) it.On the other hand, as shown in Figure 4, also can utilize not shown control device, when fluorescent lamp 33 extinguishes, make anti-condensation heater 34 conductings (ON) and generate heat, adding heat reflection plate 32 and distance member 23, and outage (OFF) when it is lighted.

In the above-described configuration, blow from the rear by pressure fan 18 in order to the cold wind of cooling cooler 17, and shown in arrow among the figure, after pipeline 12 inside, discharge to suction inlet 19 directions of opening 9 lower edges by outlet 26.Like this, when these opening 9 places form the cold air air curtain, a part of cold air is circulated in storeroom 11, make and be cooled to predetermined temperature in the storeroom 11.

Here as if, the distance member 23 of separating outlet 26 outsides also can contact with extraneous air, and the cold air of discharge also can make distance member 23 coolings, in distance member 23 and outside, also can produce dewfall.Yet, because distance member 23 usefulness low heat conductivity hard resins make, thus temperature difference between distance member 23 outer surfaces and extraneous air can be reduced, thus the dewfall on inhibition distance member 23 main bodys.(and because rearward end 23B can reduce the amount of the cold air that enters honeycomb-like part 27 Outboard Sections, this just more is difficult to dewfall on distance member 23).

And, because outside parts 3 and interior face component 4 usefulness low heat conductivity hard resins are made, and by attaching parts 6 connections, and the face component 4 corner part 4A that are positioned at these attaching parts 6 fronts are spaced apart the jut 23A lid of parts 23 and are answering, so also can be suppressed at the dewfall on inside and outside two face component 3,4.Therefore, need not to use existing heat-barrier material, and, even reduce the capacity of anti-condensation heater 34, also can eliminate the dewfall phenomenon, can not pollute the surrounding environment of open showcase, commercial quality is descended, and can prevent to upset the air air curtain, thereby can form stable air air curtain because of freezing.

Here, owing to adopt anti-condensation heater 34 no powers when fluorescent lamp 33 extinguishes, the light that described fluorescent lamp 33 sends can shine the structure on the connecting portion 36 of distance member 23 and reflecting plate 32, so the radiant heat that produces can light with fluorescent lamp 33 time prevents dewfall on connecting portion 36.Therefore the electric power that anti-condensation heater 34 consumes can be reduced, and needed anti-condensation effect can be kept.

On the other hand, because the jut 23C that is formed on the foregoing attaching parts 23 contacts with the bight 4A of interior face component 4, so be easy to definite its position during installation interval parts 23.And the sweep of corner part 4A and jut 23C form as one, so the intensity of face component 4 and distance member 23 self in can improving improves the installation accuracy of distance member 23, thereby can obtain high-precision stable air air curtain.

Fig. 5 is equipped with the amplification profilograph of open showcase 1 upper front end of another kind of structure distance member 23 for expression.Here, distance member 23 is that its main body is the inner hollow body with the hard resin extrusion modling equally, by madial wall 51 and be arranged on madial wall 51 outsides, justice forms lateral wall at interval 52 and constitutes, and is formed with air layer 53 between this madial wall 51 and the lateral wall 52.Other parts as hereinbefore.

Adopt this structure, the air layer of distance member 23 inside 53 forms thermal insulation layers, can reduce lateral wall 52 outer surfaces that distance member 23 contacts with extraneous air and the temperature difference between the extraneous air, thereby can further be suppressed at the dewfall on the distance member 23.

Fig. 6 and Fig. 7 are the amplification profilograph that open showcase 1 upper front end of other type distance member 23 is housed.Here, identical among distance member 23 and Fig. 5, also constitute by madial wall 51, lateral wall 52 and air layer 53, and madial wall 51 is made by hard resin, lateral wall 52 is made by soft synthetic resin, and as shown in Figure 7, they become one (dual extrusion modling) by the upper end of the jut 23C of crooked laterally hard material system and the engagement groove 23D transition of hard material system.

As shown in Figure 6, adopt above-mentioned distance member 23, owing to below the attaching parts 6 of thermal wall 2, be tightly locked with the lateral wall 52 of distance member 23, so attaching parts capable of blocking 6 contact with extraneous air.Therefore can further be suppressed on the distance member 23 and the dewfall of periphery.

Fig. 8 is the distance member profilograph of another kind of structure.Here, the structure of distance member 23 each several parts also made by hard resin, and the installation base portion 54 of jut 23C front end is made (dual extrusion modling) by soft synthetic resin with identical shown in Fig. 2.

Adopt this structure, more increased shown in broken broken line among Fig. 8 than shown in Figure 2, promptly the angle of distance member 23 can change arbitrarily.Therefore,, thereby can further improve its practicality, reduce the cost of parts applicable to highly different some kind open showcases.

If described in detail above adopting by invention 1 the present invention who limits, owing to making by low thermal conductivity material for forming the distance member that is provided with at interval in the outlet outside, so can reduce the temperature difference between distance member and extraneous air contact surface and extraneous air, thereby can be suppressed at the dewfall on the distance member.And because the outside parts are connected with the low heat conductivity attaching parts with interior face component, and the face component that is positioned at this attaching parts front covered by aforementioned distance member and answering, so also can be suppressed at the dewfall on inside and outside two face component.Therefore, can reduce or eliminate heat-barrier material, reduce the capacity of anti-condensation heater, and can prevent pollution, commercial quality is descended, can also form stable air air curtain simultaneously the open showcase surrounding environment.

If the present invention who adopts invention 2 to limit, because except that These characteristics, the aforementioned inner face ends that is positioned at the attaching parts front also bends to the bight, and distance member and form one with the contacted jut of aforementioned corner, so determine its position during the installation interval parts easily.And, owing to form bight and jut,, improve the installation accuracy of distance member, thereby can obtain high-precision stable air air curtain so can improve the intensity of interior face component and distance member self.

The present invention who adopts invention 3 to limit, owing to the distance member that is provided with at interval for formation outside this outlet is an inner hollow body, the air layer of distance member inside can form thermal insulation layer, thereby can reduce the temperature difference between distance member and extraneous air contact surface and extraneous air, be suppressed at the dewfall on the distance member.Therefore, can reduce or eliminate heat-barrier material, reduce the capacity of anti-condensation heater, and can prevent pollution, commercial quality is descended, can also form stable air air curtain simultaneously the open showcase surrounding environment.

Particularly, if adopt by invention 4 the present invention that limit, because except that These characteristics, the distance member lateral wall is to be made of soft heat-barrier material, so can improve the heat-proof quality of distance member self, and since this lateral wall and aforementioned thermal wall connect airtight, so can block contacting of near thermal wall of distance member and extraneous air.Therefore can further be suppressed on the distance member 23 and the dewfall of periphery.

The present invention who adopts invention 5 to limit, the illumination of sending owing to available aforementioned illuminating lamp is bright for form the distance member that is provided with at interval and the attaching parts between reflecting plate in this outlet outside, and when this illuminating lamp extinguishes, to aforementioned anti-condensation heater energising, heating above-mentioned attaching parts, so can work as illuminating lamp when lighting, the radiant heat that sends with aforementioned illuminating lamp heats the attaching parts between above-mentioned distance member and reflecting plate, and when this illuminating lamp extinguishes, implement heating with the anti-condensation heater.

Therefore, can reduce the electric power that anti-condensation heater 34 consumes, can prevent the dewfall on the above-mentioned connecting portion that contacts with extraneous air effectively, and can prevent pollution the open showcase surrounding environment, commercial quality is descended, can also form stable air air curtain simultaneously.

The present invention who adopts invention 6 to limit, owing to being positioned at this outlet outside, making by hard resin for forming the distance member that is provided with at interval, so can reduce the temperature difference between distance member and extraneous air contact surface and extraneous air, suppress the dewfall on the distance member.Therefore, can reduce or eliminate heat-barrier material, reduce the capacity of dewfall heater, and can prevent pollution, the quality of commodity is descended, can also form stable air air curtain simultaneously the open showcase surrounding environment.

Particularly, owing to the part of this distance member is made by soft synthetic resin, so its angle can change arbitrarily.Therefore, it is applicable to highly different some kind open showcases, thereby can further improve its practicality, reduces the cost of parts.

Claims

1. open showcase, thermal wall and side plate by front openings constitute, inboard at this thermal wall and side plate forms storeroom, form the cold air air curtain at this storeroom opening part, described thermal wall is made of the heat-barrier material between the low heat conductivity attaching parts between two sides ends inside and outside being filled in outside parts, interior face component and being connected this; Described display case has: be located at the thermal wall inboard, to form dividing plate at interval; The pipeline that between this dividing plate and aforementioned thermal wall, forms; Become the outlet of the described air air curtain that is communicated with pipeline; And the distance member for being provided with at interval in this outlet outside formation, and this distance member is made by low thermal conductivity material; It is characterized in that: answering by the distance member lid with the end of the discontiguous described inner part that exposes of described attaching parts.

2. open showcase as claimed in claim 1 is characterized in that:

The aforementioned inner face ends that is positioned at the attaching parts front bends to the bight, and distance member and form as one with the contacted jut of aforementioned corner.

3. open showcase, thermal wall and side plate by front openings constitute, form storeroom in the inboard of this thermal wall and side plate, form the cold air air curtain at this storeroom opening part, described display case have be arranged on the thermal wall inboard, to form dividing plate at interval; The pipeline that forms between this dividing plate and described thermal wall becomes the outlet of the aforementioned air air curtain that is communicated with pipeline; And for forming the distance member that is provided with at interval in this outlet outside; It is characterized in that: this distance member is the inner hollow body.

4. open showcase as claimed in claim 3 is characterized in that:

The lateral wall of distance member is made of soft heat-barrier material, and connects airtight with described thermal wall.

5. open showcase, thermal wall and side plate by front openings constitute, and form storeroom in the inboard of this thermal wall and side plate, form the cold air air curtain at this storeroom opening part, described display case has the inboard of the thermal wall of being arranged on, to form dividing plate at interval; The pipeline that between this dividing plate and described thermal wall, forms; Become the outlet of the aforementioned air air curtain that is communicated with pipeline; It is characterized in that described display case has: the reflecting plate that is positioned at this outlet outside; Be contained in the illuminating lamp of this reflecting plate inboard; And as distance member transition between described thermal wall and this reflecting plate,, and heat the anti-condensation heater of coupling part between this distance member and the described reflecting plate for being provided with at interval in this outlet outside formation; The bright above-mentioned attaching parts of sending with described illuminating lamp of illumination, and when this illuminating lamp extinguishes to described anti-condensation heater energising.

6. open showcase, thermal wall and side plate by front openings constitute, and form storeroom in the inboard of this thermal wall and side plate, form the cold air air curtain at this storeroom opening part, described display case has the thermal wall of being arranged on inboard, to form dividing plate at interval; The pipeline that between this dividing plate and described thermal wall, forms; Become the outlet of the aforementioned air air curtain that is communicated with pipeline; It is characterized in that: also have the distance member of making by hard resin that is positioned at this outlet outside, and the part of this distance member is made by soft system synthetic resin.