JPH03236585A - Cold air circulation type open showcase - Google Patents

Abstract

PURPOSE:To permit the cleaning of a filter easily without moving commodities or a bottom plate by a method wherein a filter attaching and detaching port is opened at the rise-up part of an outer casing and an insulating door, capable of opening and/or closing the filter attaching and detaching port, is provided. CONSTITUTION:A filter attaching and detaching port 2b is opened on the rise-up part 2a of an outer casing 2 at the fore part of a drainage port 11. The filter attaching and detaching port 2b is blockaded by a door 21, formed of heat insulating material and supported pivotably by a hinge 18 at the rise-up part 2a. Upon cleaning a filter 12, a front panel 16 is tilted forward, the door 21 is turned forward to open the filter attaching and detaching port 2b. Then, a hand is inserted into the filter attaching and detaching port 2b to take out the filter 12 and dust on the filter is removed. The filter 12 is mounted again from the filter attaching and detaching port 2b after cleaning, then, the door 21 and the upper front panel 16 are returned to an initial condition.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention includes a main case having a substantially U-shaped cross section and an opening for taking out products on the front surface, and an outer box and an inner box that constitute the main case. The present invention relates to a cold air circulation type open showcase in which a cold air circulation path containing a built-in cooler and a fan is formed between the showcases.

[Conventional technology]

A cold air circulation type open showcase shown in FIG. 4 is known. In the figure, the open showcase includes a main body case 1 having a substantially U-shaped cross section and having an opening 1a for taking out products on the front surface. This main body case 1 is formed of a heat insulating wall and includes an outer box 2 having a rising portion 2a below the opening;
It is comprised of an inner box 3 disposed inside the outer box with an appropriate distance therebetween, and a cold air circulation path 4 is formed between the outer box 2 and the inner box 3. The cold air circulation path 4 has both ends facing above and below the opening 1a to form an outlet 4a and an inlet 4b, and a fan 5 and a cooler 6 are housed inside. The inner box 3 has a removable bottom plate 3a, and forms a chamber interior 7 inside. Inside the refrigerator 7, shelves 8 are provided in multiple levels above and below. A drain port II is provided at the bottom of the outer box 2, and a filter 12 is removably attached from above. This drain port 11 is connected to a drain pipe 13 via a trap 14 forming a part thereof. Note that 15 is a base that supports the outer box 2, and 16 and 17 are an upper front panel and a lower front panel provided on the lower front surface of the main body case 1.

In the open showcase, products 9 are displayed and housed in the warehouse interior 7. The air inside the refrigerator is sucked into the cold air circulation path 4 from the suction port 4b by the fan 5, and is cooled by the cooler 6 to become cooling air, which flows as shown by the arrow. This cooling air is blown out through the outlet 4a to form a cold air curtain in the opening 1a, and also cools the inside 7 of the warehouse, so that the product 9 is kept cool and cold.

In addition, defrost water generated during defrosting operation performed at appropriate intervals,
Drainage water such as washing water generated when cleaning the inside of the refrigerator is collected at the bottom of the outer box and discharged through the drain port 11 toward a drain or the like.

[Problem to be solved by the invention]

Debris and the like that have flowed down with the waste water accumulate in the upper part of the drain port 11 and clog the filter 12. For this purpose, it is necessary to remove and clean the filter 12 at appropriate intervals.

However, in the conventional open showcase, filter 12
In order to clean the bottom plate 3a, the product 9 on the bottom plate 3a must be moved to another location and the bottom plate 3a must be removed. This has the disadvantage that cleaning work is extremely troublesome.

An object of the present invention is to provide a cold air circulation type open showcase that does not require the movement of products or the bottom plate of the inner box and allows easy cleaning of filters.

[Means to solve the problem]

In order to achieve the above object, the cold air circulation type open showcase of the present invention has an outer box having a substantially U-shaped cross section, which is formed by a heat insulating wall, has an opening for taking out products on the front side, and has a rising part below the opening. and an inner box that forms the inside of the refrigerator. A cold air circulation path containing a cooler and a fan is formed between the outer box and the inner box. In a cold air circulation type open showcase that has a drain port on the bottom to which a filter is removably attached, a filter attachment/detaching port is opened in the rising part of the outer box, and an insulating door is provided to open and close the filter attachment/detachment port. or when a plurality of main body cases are connected and installed, an outer box having a substantially U-shaped cross section, which is formed by a heat insulating wall, has an opening for taking out the product on the front side, and has a rise below the opening; The main case is composed of an inner box that forms the inside of the refrigerator, and a cold air circulation path containing a cooler and a fan is formed between the outer box and the inner box, and a cooling air circulation path is formed at the bottom of the outer box. In a cold air circulation type open showcase equipped with drain ports, each of the drain ports of the plurality of connected main body cases is guided forward by a drain pipe, and the drain pipes are connected to each other with a pipe joint to merge the drain channels. At the same time, a filter is detachably attached to the pipe joint from the front.

[Effect]

Since the door can be opened and the filter can be pulled forward and removed, the filter can be easily cleaned without moving the product or the bottom plate. Further, when the main body cases are connected and installed, a filter is attached to the pipe joint that connects the drain pipe, and since this filter can be removed forward, cleaning of the filter can be easily performed as in the case described above.

〔Example〕

FIG. 1 shows a first embodiment of the invention, and parts common or identical to those in FIG. 4 are designated by the same reference numerals.

In FIG.
A filter attachment/detachment port 2b is provided by opening the front portion of the filter. Reference numeral 21 is made of a heat insulating material, and is rotatably supported on the rising portion 2a by a hinge 18, which closes the filter attachment/detachment port 2b in an openable and closable manner. The upper front panel 16, which has conventionally been fixed in a snap-in manner, is attached via a hinge 19 so as to be rotatable forward.

In the above configuration, when cleaning the filter 12,
The upper front panel 16 is folded forward and the door 21 is rotated forward to open the filter attachment/detachment port 2b. Then, insert your hand through the filter attachment/detachment port 2b, take out the filter 12, and remove the dust on it. Filter 1 after cleaning
2 from the filter attachment/detachment port 2b, and return the door 21 and upper front panel 16 to their original states. In this way, the filter 12 can be easily cleaned without moving the product 9 or removing the bottom plate 3a, and since the filter attachment/detachment port 2b is normally closed with the insulating door 21, cooling air can be circulated. There is no problem in cooling the interior 7 of the refrigerator.

A second embodiment of the invention will be described with reference to FIGS. 2 and 3. In this embodiment, a plurality of main body cases are connected side by side, and in the oven showcase, each drain pipe connected to each drain port 11 of the main body case is connected to the pipe according to the present invention in front of the trap 14. They are connected to each other by a joint 23. This pipe joint 23 has a small chamber, and has an opening 23a connected to the drain port 11 on the back side of the small chamber, and openings 23b connected to the pipe joint 23 of the main body case adjacent to both left and right sides of the small chamber. Further, a screw cap 24 is provided on the front surface of the small chamber, and the filter 12 is removably filled in the small chamber.

The lower front panel 17 in front of the pipe joint 23 has a hinge 19
It is attached so that it can rotate forward through the

In the above-mentioned configuration, the drainage channels of the plurality of main body cases are merged into one via the pipe joint 23, and the waste water generated in each main body case is filtered to remove dust etc. by each filter 12, and then drained to the pipe joint 23 at one end. The water is discharged to the drain through a drain pipe connected to one opening 23b of the drain pipe. Note that one opening 23b of the pipe joint 23 at the other end is closed with a blind plug. When cleaning the filter 12, fold the lower front panel 17 forward, remove the cap 24, and clean the filter 12.
Remove it from the small room and clean it. After cleaning the filter 12, it is returned to its original state. Also in this embodiment, unlike the conventional case, the filter 12 is not attached to the drain port 11, so when cleaning the filter 12, there is no need to move the product 9 or the bottom plate 3a. It is not necessary and cleaning work is easy.

〔Effect of the invention〕

According to this invention, there is provided an outer box which is formed of a heat insulating wall and has a generally U-shaped cross section and has an opening for taking out products on the front surface and a rising portion below the opening, and an inner box which forms a storage interior inside. A main body case is formed between the outer box and the inner box, and a cold air circulation path containing a cooler and a fan is formed between the outer box and the inner box, and a drain port is provided at the bottom of the outer box to which a filter is removably attached. In the cold air circulation type oven showcase, a filter attachment/removal port is opened in the rising portion of the outer box, and an insulating door is provided to open and close the filter attachment/detachment port, or a plurality of main body cases are connected and installed. In this case, the main case consists of an outer box that is formed by a heat insulating wall and has a roughly U-shaped cross section with an opening for taking out the product on the front and a rising part below this opening, and an inner box that forms the inside of the refrigerator. A cold air circulation path containing a built-in cooler and a fan is formed between the outer box and the inner box, and the outer box and the inner box are further connected in a cold air circulation type oven showcase having a drain port at the bottom of the outer box. Each of the drain ports of the plurality of main body cases is guided forward by a drain pipe, and the drain pipes are connected to each other with a pipe joint to merge the drain channels, and a filter is removably attached to the pipe joint from the front. As a result, the waste water generated in the main body case is discharged after removing dust and the like by the filter, and the filter can be cleaned without moving the product or removing the bottom plate inside the refrigerator. Therefore, cleaning work becomes extremely easy.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the main parts of an open showcase showing a first embodiment of the invention, FIG. 2 is a cross-sectional view of the main parts of an oven showcase showing a second embodiment of the invention, and FIG. 4 is a perspective view of a pipe joint and a filter, and FIG. 4 is a sectional view of a conventional oven showcase. DESCRIPTION OF SYMBOLS 1...Main body case, 2...Outer box, 2a...Rising part, 2b...Filter attachment/detachment port, 3...Inner box, 4...
・Cold air circulation path, 5...fan, 6...cooler, 7.
...Interior, 11...Drain port, 12...Filter, 2
1... Door, 23... Pipe joint. 2 Sotoura

Claims (1)

[Claims] 1) Formed by a heat insulating wall and having an opening for taking out the product on the front side;
The main case is composed of an outer box having a generally U-shaped cross section with a rising portion below the opening, and an inner box that forms the inside of the refrigerator. In the cold air circulation type open showcase, in which a cold air circulation path is formed with a built-in container and a fan, and a drain port is provided at the bottom of the outer box to which a filter is removably attached, a filter attachment/removal port is provided at a rising part of the outer box. A cold air circulation type open showcase characterized by being provided with an insulating door that is opened and also opens and closes the filter attachment/detachment port. 2) Formed by a heat insulating wall with an opening for product removal on the front.
The main case is composed of an outer box having a generally U-shaped cross section with a rising portion below the opening, and an inner box that forms the inside of the refrigerator. In a cold air circulation type open showcase in which a cold air circulation path is formed with a built-in container and a fan, and further includes a drain port at the bottom of the outer box, each drain port of the plurality of connected main body cases is guided forward by a drain pipe. and a cold air circulation type open showcase, characterized in that the drain pipes are connected to each other by a pipe joint to merge the drainage channels, and a filter is detachably attached to the pipe joint from the front.