KR20170049100A - Cold air supply control method and control of the open showcase - Google Patents

Cold air supply control method and control of the open showcase Download PDF

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Publication number
KR20170049100A
KR20170049100A KR1020150150041A KR20150150041A KR20170049100A KR 20170049100 A KR20170049100 A KR 20170049100A KR 1020150150041 A KR1020150150041 A KR 1020150150041A KR 20150150041 A KR20150150041 A KR 20150150041A KR 20170049100 A KR20170049100 A KR 20170049100A
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KR
South Korea
Prior art keywords
cold air
air supply
weight
supply hole
shelf
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KR1020150150041A
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Korean (ko)
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KR101816772B1 (en
Inventor
백형국
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롯데알미늄 주식회사
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Priority to KR1020150150041A priority Critical patent/KR101816772B1/en
Publication of KR20170049100A publication Critical patent/KR20170049100A/en
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Publication of KR101816772B1 publication Critical patent/KR101816772B1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0478—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The present invention relates to a cold air supply control method of an open showcase and a control apparatus therefor. According to the present invention, a cold air supply control method of an open show case comprises: a step of measuring the weight of a product loaded on each of shelves in a refrigerating compartment of an open showcase to properly control a supply of cold air proportional to the weight of the product displayed on each of the shelves in the refrigerating compartment; a step of determining to control an amount of cold air to be supplied according to the measured weight of each of the shelves; and a step of closing or opening a cold air supply hole on the rear surface in accordance with the measured weight of the displayed product for controlling the amount of cold air to be supplied. Therefore, the present invention is able to maximize efficiency of cold air supply in the refrigerating compartment and, in addition, refrigerating efficiency according to an overall cold air supply of the open showcase can be improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold air supply control method and an open showcase,

The present invention relates to a cooler supply method for an open showcase, and more particularly to a cooler supply control method for an open showcase in which supply of cold air is appropriately adjusted in proportion to the weight of a commodity displayed on each shelf of a cold storage room And a regulating device.

In general, Open Showcase is installed for the purpose of storing and selling products in a department store, a large discount store, a convenience store, a supermarket, etc., so that buyers can easily select a product, So that the buyer can be motivated to purchase the product.

Such an open showcase typically uses a refrigeration cycle in which four steps of compressing, condensing, expanding, and evaporating the refrigerant gas are performed continuously by performing pressure control and vaporization control mechanically to continuously perform a cooling function.

In the case of open showcase, it is divided into various forms depending on the purpose. That is, various kinds such as flat surface type, multi-stage face type and open type can be classified according to objects to be displayed such as objects to be exhibited such as vegetables, drinks, instant food such as kimbab or lunch .

Herein, an open showcase in which a front surface is opened among various conventional showcases will be described as an example.

The open showcase comprises a main body case on an enclosure in which a refrigerator compartment in which a front product is stored is opened, a machine room in which a refrigeration cycle is carried out at a lower portion of the main body case, various mechanical parts are housed, A plurality of cool air supply holes formed in the rear of the cool air circulating heat exchanger from the evaporator of the machine room, a duct for supplying cool air to the cool air chamber through the cool air discharge openings at the upper portion thereof, Each shelf consists of a shelf on which a product to be placed on the bracket is placed. At this time, the cold air supply holes are formed on the rear surface of the shelf corresponding to the shelf.

As a result, it keeps freshness by continuously supplying cold air to the products displayed.

As described above, a typical open showcase has been published in Korean Public Utility Model No. 20-1999-006616, Korean Registered Utility Model No. 20-04411200, and the like.

Meanwhile, a conventional open showcase continuously supplies cold air through the cold air supply hole formed on the rear surface and the chiller discharge opening formed on the rear surface irrespective of the weight of the commodity displayed on the shelf in the refrigerating chamber, There is a disadvantage that the loss is considerably large.

That is, when the amount of displayed commodities is small, it is preferable to reduce the supply of cold air and increase the supply of cold air when the amount of commodities is large. However, the supply of cold air to the refrigerator compartment of the conventional open showcase It is disadvantageous in that the loss of cool air is considerably large and the energy loss due to the loss is large.

In order to solve these problems, the conventional Korean Utility Model Registration No. 20-0113228 (hereinafter referred to as "Prior Art Document 1") and Korean Utility Model No. 20-2000-0010467 (hereinafter referred to as "Prior Art Document 2" , A night cover is provided to prevent cold air in the refrigerating compartment from flowing out when a store or the like is closed.

Also, as disclosed in Korean Patent Laid-Open Publication No. 10-2015-0077691 (hereinafter referred to as "Prior Art Document 3") filed by the present applicant, when outside air is exclusively introduced and circulated, the cold air in the refrigerating chamber flows out A technique has been proposed in order to minimize the occurrence of the problem.

Korean Registered Utility Model No. 20-0113228 Korean Utility Model Publication No. 20-2000-0010467 Korean Patent Publication No. 10-2015-0077691

However, in the prior art documents 1 to 3, a constant amount of cold air is continuously supplied irrespective of the amount of display products placed on the shelves in the refrigerating chamber, so that even when the amount of display products is small, .

Furthermore, the prior art documents 1 and 2 also have a disadvantage in that a large amount of cold air is lost when a night cover is put on the market and a commodity is sold.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an open showcase cool air supply device capable of appropriately controlling the supply of cold air in proportion to the weight of a product displayed on each shelf of a refrigerating chamber. And to provide an adjustment method and an adjustment device.

Technical Solution According to an aspect of the present invention, there is provided a refrigerator comprising: a refrigerator having a plurality of shelves, each shelf having a plurality of shelves, The method comprising the steps of: measuring a weight of a product placed on each shelf; Determining to adjust the supply amount of cool air according to the measured weight of each of the shelves; And adjusting the supply amount of the cool air includes closing or opening the cool air supply hole on the rear surface in accordance with the measured weight of the display product.

The closing of the cold air supply hole further includes closing only a part of each cold air supply hole in accordance with the weight of the commodity displayed.

The opening of the cold air supply hole further includes opening only a part of each cold air supply hole in accordance with the weight of the commodity displayed.

An open showcase including a plurality of cold air supply holes through which cool air supplied through a duct is supplied to the rear surface of each shelf, Each of the weighing means being provided to measure the weight of a product placed on each shelf in each shelf or stationary bracket provided in the multi-stage; An opening / closing member provided on one side of the cold air supply hole to open / close the cold air supply hole according to the weight measured by the weight sensing means; And a controller for organically controlling the weight sensing means and the opening and closing member.

The opening and closing member includes a belt conveyed by a driving source, and an opening and closing plate provided on an outer surface of the belt to open and close a cooler supply hole.

The present invention has an effect of maximizing the supply efficiency of cold air in the refrigerating compartment by appropriately controlling the supply of cold air in proportion to the weight of the commodities displayed on each shelf of the refrigerating compartment, The refrigeration efficiency according to the entire cold air supply of the refrigerator can be improved.

1 is a block diagram for explaining the present invention;
2 is a front view for explaining the present invention;
Fig. 3 is a partial side sectional view according to Fig. 2,
4 is a partial side sectional view for explaining the use state of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The present invention is not limited to the embodiments.

1 is a block diagram for explaining the present invention.

As shown in the figure, each shelf is provided with a plurality of cold air supply holes through which cool air is supplied through a duct to the rear surface of each shelf, We present an adjustment method to control the cold supply of the open showcase that is included.

The present invention is intended to enable supply of cool air to be appropriately controlled in proportion to the weight of merchandise displayed on each shelf of the refrigerator compartment.

The cold air supply control method according to the present invention comprises the step (S1) of measuring the weight of goods placed on each shelf.

That is, a known sensing means for measuring the weight such as a load cell or a weight sensor such as a shelf or a fixing bracket on which the shelf is installed is provided, and the weight is measured according to the amount of the product placed on each shelf.

Thereafter, a step S2 of judging to adjust the supply amount of cool air according to the measured weight of each of the shelves is performed.

In other words, the weight depends on the amount of the product placed on each shelf, that is, it is light when a small amount of product is placed, and heavy when a large amount of product is placed, depending on the amount It is determined that the supply amount of cold air can be adjusted as the supply amount of cold air must be different.

Then, adjusting the supply amount of the cold air includes closing or opening the cold air supply hole on the rear surface in accordance with the measured weight of the display product (S3). At this time, the cooling air supply hole may be closed or opened by a known method while being lifted or lowered on the duct to close or open the cooling air supply hole.

Accordingly, when there is no product to be displayed on the shelf or the product is light in weight, the cold air supply hole is closed, and when there is a large amount of product to be displayed, the cold air supply hole is opened to supply cool air smoothly.

Accordingly, the present invention is not limited to supplying the cold air constantly to the refrigerator compartment of the open showcase regardless of the display products, but may be suitably adjusted by closing or opening the cold air supply hole depending on the amount of commodity So that the supply efficiency of the cold air can be increased in proportion to the amount of the product.

In addition, when the cold air supply hole on the rear side is closed, the amount of cold air discharged through the cold air discharge opening formed in the upper portion of the refrigerator compartment of the open showcase is increased and the overall refrigerating efficiency in the refrigerating chamber is increased due to the air curtain in front of the refrigerating chamber. It also has a condition that can be.

In addition, the closing of the cold air supply hole may include closing only a part of each cold air supply hole depending on the weight of the commodity displayed, as well as opening the cold air supply hole to open only a part of each cold air supply hole depending on the weight of the commodity .

In other words, if some of the items on the shelf remain, some of the remaining cold air will continue to be supplied to the remaining product rather than completely closing the cold air supply hole, thereby maintaining the freshness of the product continuously.

That is, the cold air supply holes are formed continuously at left and right in at least two stages in the upper and lower directions. When a part of product is left on the shelf, the entire cold air supply hole is not closed but only the upper side or the lower side is closed, So that the cold air can be continuously supplied to the outdoor unit.

Fig. 2 is a front view for explaining the present invention, Fig. 3 is a partial side sectional view according to Fig. 2, and Fig. 4 is a partial side sectional view for explaining a use state of the present invention.

As shown in the figure, each shelf 112 is mounted on a fixing bracket 111 which is fixed in a multi-stage inside the refrigerating chamber 110, and a duct 120 And a plurality of cold air supply holes 122 to which cold air supplied through a plurality of cold air supply holes 122 are supplied.

The present invention is intended to enable supply of cool air to be appropriately controlled in proportion to the weight of merchandise displayed on each shelf of the refrigerator compartment.

The cold air supply control device according to the present invention includes respective weight sensing means 10 for measuring the weight of a product placed on each shelf 110 in each of the shelves 110 or the fixing brackets 111 provided in the multi- and; An opening / closing member (20) provided on one side of the cold air supply hole (122) to open / close the cold air supply hole (122) according to the weight measured by the weight sensing means (10); And a known controller (not shown) for organically controlling the weight sensing means 10 and the opening and closing member 20 with each other.

The weight detecting means 10 may be any known type that detects the weight when a load such as a load cell or a weight sensor is applied.

In addition, the weight of the weight sensing means can be measured by interposing a gap between the fixed bracket and the shelf at a predetermined interval.

In addition, as shown in the figure, the fixing brackets are installed on both sides of the bottom surface of the shelf so that the upper and lower locking hooks are inserted into the pair of insertion holes formed in the refrigerating chamber. So that when the weight of the product placed on the shelf is applied, it can be sensed and measured.

The opening and closing member 20 includes a belt 24 in the form of a normal conveyor belt or the like conveyed by a driving source 22 such as a normal or normal rotating motor or a DC motor or the like, And an open / close plate 26 provided to open / close the cool air supply hole 122.

Accordingly, in the present invention, when the weight of the product placed on each shelf is measured by the weight detecting means, the controller controls the opening / closing of the cold supply hole formed on the rear surface of each shelf by a preset data value.

In other words, when a large amount of commodities are displayed on the shelf, the control unit drives the open / close member so that the open / close plate on the belt is positioned to open the cool air supply hole. When the amount of commodities displayed is small, As shown in Fig. At this time, it is preferable to open a part of the cold air supply hole when some products are left on the shelf, if necessary.

Accordingly, the present invention does not have a complicated structure, but rather opens and closes a cool air supply hole formed on the rear surface of the refrigerating compartment according to the amount of the product put on the shelf by the simple structure, thereby supplying the cool air in proportion to the product displayed on the shelf. The supply efficiency of the cool air can be maximized.

In addition, when the cold air supply hole formed on the rear surface of the refrigerating chamber is closed, a large amount of cold air is discharged through the cold air discharge opening in the upper portion of the refrigerating chamber. As a result, Lt; / RTI >

1: regulating device
10: weight detecting means 20: opening / closing member
22: driving source 24: belt
26: opening / closing plate
100: Open Showcase
110: refrigerator compartment 111: fixing bracket
112: shelf 120: duct
122: cold air supply hole

Claims (5)

An open showcase including a plurality of cold air supply holes through which cool air supplied through a duct is supplied to the rear surface of each shelf, And a control unit for controlling the supply of cold air to the control unit,
Measuring the weight of the merchandise placed on each shelf;
Determining to adjust the supply amount of cool air according to the measured weight of each of the shelves; And
And controlling the supply amount of the cool air to close or open the cool air supply hole on the rear surface in accordance with the measured weight of the display product. The method according to claim 1,
Wherein the closing of the cold air supply hole further comprises closing only a part of each cold air supply hole in accordance with the weight of the commodity displayed. The method according to claim 1,
Wherein the opening of the cold air supply hole further comprises opening only a part of each cold air supply hole in accordance with the weight of the commodity displayed. An open showcase including a plurality of cold air supply holes through which cool air supplied through a duct is supplied to the rear surface of each shelf, A control device for controlling the cold air supply of the compressor,
Each of the weight detecting means being provided to measure the weight of a product placed on each shelf in each of the shelves or the fixing brackets provided in the multi-stages;
An opening / closing member provided on one side of the cold air supply hole to open / close the cold air supply hole according to the weight measured by the weight sensing means; And
And a control unit for organically controlling the weight sensing unit and the opening and closing member. 5. The method of claim 4,
Wherein the opening and closing member includes a belt conveyed by a driving source, and an opening and closing plate provided on an outer surface of the belt to open and close a cooling air supply hole.
KR1020150150041A 2015-10-28 2015-10-28 Cold air supply control method and control of the open showcase KR101816772B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101976040B1 (en) * 2018-12-04 2019-05-07 일월정밀 주식회사 System and method for unmanned godds sales using weight deduction
CN112013593A (en) * 2019-05-28 2020-12-01 青岛海尔特种电冰柜有限公司 Refrigerating cabinet
CN112013592A (en) * 2019-05-28 2020-12-01 青岛海尔特种电冰柜有限公司 Air-out controllable refrigeration cabinet
CN112696853A (en) * 2019-10-23 2021-04-23 青岛海尔特种电冰柜有限公司 Refrigerator and control method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200144951Y1 (en) * 1995-07-26 1999-06-15 최진호 Showcase

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101976040B1 (en) * 2018-12-04 2019-05-07 일월정밀 주식회사 System and method for unmanned godds sales using weight deduction
CN112013593A (en) * 2019-05-28 2020-12-01 青岛海尔特种电冰柜有限公司 Refrigerating cabinet
CN112013592A (en) * 2019-05-28 2020-12-01 青岛海尔特种电冰柜有限公司 Air-out controllable refrigeration cabinet
CN112696853A (en) * 2019-10-23 2021-04-23 青岛海尔特种电冰柜有限公司 Refrigerator and control method thereof

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KR101816772B1 (en) 2018-01-08

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