JPH0737111Y2 - Open showcase control device protection structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention controls an electric device installed in a case defined by an adiabatic wall that contains an evaporator that cools the products displayed and displayed inside. The present invention relates to a control device protection structure for an open showcase that protects a control device provided on the outer surface of the lower end of the heat insulating wall.

[Conventional technology]

An open showcase is a refrigerator that cools the inside of a case to display it for display in a case that is partitioned by a heat-insulating wall and has an open outer surface, and to maintain its freshness depending on the variety of the displayed product. The evaporator, which is a component of the above, is provided in the case. The evaporator is connected to a device such as a condenser installed outside the refrigerator, which constitutes a refrigerator, through a piping member. This piping member is installed in the case along the lower outer surface of the heat insulating wall, which is easy to construct, easy to inspect and repair, and has no trouble in appearance. On the outer surface of the heat insulating wall just above the piping member, an electric heater that melts and removes frost that adheres to the outer peripheral surface of the evaporator during the cooling process, a blower that blows the air in the case to the evaporator, and a display in the case A ballast for controlling electric equipment, such as a lighting lamp that illuminates the displayed products, a temperature control equipment, and a control equipment including a terminal block with multiple terminals for wiring connection between these equipment are installed. It is set up. The control device and the piping member are partitioned by a partition plate over the entire length of the outer surface of the heat insulating wall in the left-right direction. The partition plate is laid on the electric device, the control device, and installed outside the machine. Wiring is provided between the power supply facilities, and a partition plate and a cover that covers the outer surface of the heat insulating wall cover the control device to protect the control device from being damaged by external force, dust, water, and the like. For this reason, the partition plate is formed with an insertion hole through which an electric wire for supplying power from the power supply equipment outside the machine is inserted, and the control equipment protection structure of this kind of open showcase is shown in FIGS.
Shown in the figure. FIG. 5 is a left side vertical sectional view showing the internal structure of a front open type open showcase including a control device protection structure for a conventional open showcase, the right side of the figure is the front side, and FIG. 6 is FIG. FIG. 7 is an enlarged view of an essential part showing the control device protection structure of FIG. 7, and FIG. 7 is a partial front sectional view of the essential part of FIG.

In FIG. 5 to FIG. 7, reference numeral 1 denotes a case, and this case 1 has a heat insulating property and a cross section whose front surface is open is C.
It is composed of a character-shaped heat insulating wall 2 and a side plate 3 which is filled with a heat insulating material and has heat insulating properties so as to cover both left and right side surfaces thereof, and a large opening 4 is formed in the front surface thereof. Case 1
A shelf 5 for displaying and displaying products for sale is vertically arranged in the center thereof, and the rear end of the shelf 5 is cantilevered by a vertical inner wall 6 on the depth side. In addition, in the case 1, there are blowers 7 for sending air to the bottom and the upper inner corners, respectively.
8 is provided, and an evaporator 9 which is a component of the refrigerator is provided behind the blower 7. On the bottom surface of the heat insulating wall 2 on the front side of the evaporator 9, a drainage port 11 for draining defrost water is provided on the bottom of the heat insulating wall 2 on the front side of the electric heater 10 supported to face the evaporator 9. An illumination lamp 12 for illuminating the products displayed on the shelf 5 is supported on the lower surface of the front end of the shelf 5. On the other hand, a control device 14 for controlling electric devices such as the blowers 7, 8, the heater 10, and the illumination lamp 12 is provided on the forwardly inclined front surface of the heat insulating wall 2 below the opening 4 via a support 13 having a dogleg-shaped cross section. , Ballast, temperature control device, terminal block with multiple terminals, etc. A pipe member 15 that connects between the evaporator 9 and a device that constitutes a refrigerator installed outside the device is supported under the control device 14, and the pipe member 15 and the control device 14 are connected to each other. The rear end of the space is supported by the front surface of the heat insulating wall 2, and an insertion hole 17 is formed to vertically insert the other end of the electric wire 16 for supplying electric equipment and control equipment inside the machine from the power supply equipment outside the machine (not shown), and the cross section is dished. The heat insulating wall 2 is partitioned by a partition plate 18 over the entire length in the left-right direction, and the front surface of the heat insulating wall 2 is covered with panels 19, 20, 21, 22 screwed to the front surface of the heat insulating wall 2. Space 2 surrounded on all sides by this panel 21, partition plate 18, heat insulation wall 2 and side plate 3
The control device 14 is housed and protected inside the control device 1.
A wire (24) between the electric wire (4) and the electric equipment and a wire (16) for connecting and supplying electric power between the control equipment (14) and the electric equipment and the external power supply equipment crawl on the partition plate (18). The operation of each part of the showcase having such a configuration is as follows: the air in the case 1 that is pumped and circulated by the blowers 7 and 8 is cooled by the evaporator 9 to cool the inside of the case 1 and the air in the cooled case 1 is also cooled. An air curtain is formed so as to cover the opening 4 so as not to dissipate from the opening 4 to the outside of the machine. Further, when frost adheres to the outer periphery of the evaporator 9 during the process of cooling the case 1, the heater 10 is energized, and the air warmed by the heater 10 is blown by the blower 7 to the evaporator 9
The frost that adheres to the outer circumference is melted and removed. The defrosted water generated by this defrost flows down the surface of the evaporator 9 and drips from the lower end to the bottom of the heat insulating wall 2, and from the drain port 11 to the case 1.
Drained outside.

[Problems to be solved by the device]

However, in such a control device protection structure for an open showcase, the heat insulating wall 2 has a heat insulating property on the front surface of the heat insulating wall 2 whose inner surface is cooled by the cold air in the case 1 surrounding one of the spaces 23. However, the temperature is lower than that of the outside air, which is the air outside the machine, and the control device 14 arranged on the front surface of the heat insulating wall 2 via the support 13 is also cooled. There is a problem that dew adheres to the outer periphery of the control device 14 which is exposed to the hot and humid outside air entering through the hole 17 and the control device 14 malfunctions and does not operate or causes a short circuit accident.

In addition, since the wiring 24 and the electric wire 16 are crawling on the same partition plate 18, a wiring error occurs during the wiring work on site after the installation of the open showcase, and the entire length of the lower front surface of the heat insulating wall 2 is controlled. Since the piping member 15 is disposed below the fixed partition plate 18 that partitions the device 14 and the piping member 15, it is said that the partition plate 18 interferes with the piping work on site. There are also problems.

An object of the present invention is to provide a control device protection structure for an open showcase, which prevents dew from adhering to the outer periphery of the control device, and allows on-site wiring and piping work after installation to be quick and easy without error.

[Means for Solving the Problems]

According to this invention, in order to solve the above-mentioned problems, according to the present invention, the inside of an evaporator for cooling the products to be displayed and displayed is built in, and the heat insulating wall of the case is defined by a heat insulating wall having heat insulating properties and the outer surface is open. Between the lower pipe member connecting the upper control device for controlling the electric device arranged in the machine and the evaporator and the device constituting the refrigerator outside the machine, which is arranged on the outer surface of the lower end portion. A partition plate having an insertion hole for partitioning the control device and the electric device to which an electric wire for feeding from outside the machine is inserted, the heat insulating wall and a panel covering the outer surface of the heat insulating wall. In a control equipment protection structure of an open showcase for accommodating and protecting control equipment, a support for sealing the space and supporting the electric wire whose length is in the left-right direction along the outer surface of the heat insulating wall under the partition plate. Have And the.

Further, the partition plate is arranged in the longitudinal direction and is constituted by a plurality of constituent members that are detachably supported in the case.

[Action]

This invention seals a space surrounded by a partition plate, a heat insulating wall that forms a case, and a panel that covers the outer surface of the heat insulating wall, and also supplies electric wires from the outside of the machine, the electric wires extending in the left-right direction. Since the supporting tool for supporting along the outer surface of the heat insulating wall under the partition plate is provided, it is possible to prevent the hot and humid outside air from entering the space and prevent the dew from adhering to the outer periphery of the control device. Further, the mutual wiring between the control device and the electric device and the electric wire connecting between the control device and the electric device and the power supply facility outside the machine can be separately supported in different places. Further, since the partition plate is arranged in the longitudinal direction and is constituted by a plurality of constituent members that are detachably supported in the case, the partition plate can be easily removed and moved so as not to disturb the work at the time of piping work on site.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a left side vertical sectional view showing the structure of a control device protection structure for an open showcase according to one embodiment of the present invention, the right side of the figure is the front side, and FIG. 2 is a main part of FIG. Front part longitudinal sectional view, FIG. 3 is a top view of the partition plate of FIG. 1, FIG. 4 is a left side longitudinal sectional view of FIG. 3, and FIG. 3 and FIG. is there. 5 to 7
Portions common to or the same as those in the figure are denoted by the same reference numerals.

In FIGS. 1 to 4, reference numeral 1 denotes a case. The case 1 is composed of a heat insulating wall 2 having a C-shaped cross section and side plates 3 covering both left and right side surfaces thereof, and has a large opening on the front surface thereof. The opening 4 is formed. In the case 1, there is vertically arranged a shelf 5 having a rear end cantilevered by an inner wall 6 in the center thereof, and an illumination lamp 12 is supported on the lower surface of the front end of the shelf 5. Further, in the case 1, a blower 7 is provided at the bottom thereof, and an evaporator 9 is arranged at the rear side of the blower 7, and the evaporator 9 is provided on the bottom surface of the heat insulating wall 2 on the front side of the evaporator 9. A facing electrothermal type heater 10 is supported, and a drain port 11 for draining defrost water is formed at the bottom of the heat insulating wall 2 on the front side of the heater 10.

On the other hand, a support member 13 is provided on the front surface of the heat insulating wall 2 below the opening 4 which is inclined forward.
A control device 14 for controlling electric devices inside the machine such as the blower 7, the heater 10, and the illuminating lamp 12 via, for example, a ballast, a temperature control device, a terminal block having a plurality of terminals, and the like are provided. The heat insulating wall 2 below the control device 14 supports a pipe member 15 that connects between the evaporator 9 and a device that constitutes a refrigerator installed outside the device, such as a condenser or a compressor. . Between the piping member 15 and the control device 14, over the entire length of the heat insulating wall 2 in the left-right direction,
A partition plate 26 in which a plurality of component members 25 having a dish-shaped cross section are arranged in the left-right direction and in which insertion holes 17 for inserting the electric wires 16 are formed.
It is divided by. A disk-shaped bush 28 formed of rubber or the like and having a star-shaped split 27 through which the electric wire 16 is inserted is fitted in the insertion hole 17 of the partition plate 26.
The gap between the electric wire 16 and the insertion hole 17 is closed with 28, and the constituent member 25 is detachably supported on the upper surface of the support tool 29 having a ladle-shaped cross section in which the rear end is fixed to the heat insulating wall 2 and arranged in a plurality on the left and right. ing. Further, the front surface of the heat insulating wall 2 is covered with panels 19, 20, 21, 30 screwed to the front surface of the heat insulating wall 2, and this panel 21, a partition plate.
The control device 14 is housed in a space 31 that encloses and seals the four contact surfaces of the heat insulating wall 2 and the side plate 3 via sealing materials, and encloses them on all sides. The wiring 24 between the control device 14 and the electric device is laid on the partition plate 26, and the control device 14
Further, the electric wire 16 for connecting and supplying electric power between the electric equipment and an external power supply facility (not shown) is supported by the supporting member 29.

In the above-mentioned configuration, the operation of each part of the open showcase is the same as the above-mentioned conventional example, but the hot and humid outside air does not enter the sealed space 31, and the outer periphery of the control device 14 housed in the space 31. Since dew does not adhere, control device 14
It is possible to prevent malfunctions, short-circuit accidents, etc. that occur due to dew on the outer periphery. Further, while the wiring 24 and the electric wire 16 are supported at different positions, the partition plate 26 is composed of a plurality of component members 25 that are detachably supported by the support tool 29, so that the electric wire 16 and the wiring 24 can be easily distinguished. Moreover, the partition plate 26 can be removed. Therefore, in the on-site work after installation, the wiring 24 and the electric wire 16 are not mistaken, and the partition plate 26 does not hinder the piping work.

[Effect of device]

According to this invention, the space surrounded by the partition plate, the heat insulating wall that forms the case and the panel that covers the outer surface of the heat insulating wall is hermetically sealed, and an electric wire that is fed from outside the machine and has a longitudinal direction in the left-right direction is provided. Since a support tool for supporting along the outer surface of the heat insulation wall under the partition plate is provided, it is possible to prevent dew from adhering to the outer periphery of the control device, and support the wiring and the electric wire separately in different places. As a result, it is possible to prevent the malfunction of the control device, the short-circuit accident and the like caused by the dew adhered to the outer periphery of the control device, and the wiring work error after the on-site installation.

In addition, since the partition plate is arranged in the longitudinal direction and is composed of multiple components that are detachably supported in the case, the partition plate can be easily removed and moved so as not to interfere with the work during piping work after on-site installation. As a result, the effect that the piping work after the on-site installation can be performed quickly and easily is obtained.

[Brief description of drawings]

FIG. 1 is a left side vertical sectional view showing the structure of a control device protection structure for an open showcase according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of a front portion of a main portion of FIG. 1, and FIG. FIG. 1 is a top view of the partition plate, FIG. 4 is a left side vertical sectional view of FIG. 3,
FIG. 5 is a left side vertical cross-sectional view showing the internal structure of a front open type open showcase including a conventional open showcase control device protection structure, and FIG. 6 is a main part showing the control device protection structure of FIG. An enlarged view and FIG. 7 are partial front cross-sectional views of the main parts of FIG. 1 ... Case, 2 ... Insulation wall, 3 ... Side plate, 4 ... Opening, 5 ... Shelf, 6 ... Inner wall, 7,8 ... Blower, 9 ... Evaporator, 10 ... Heater, 11 ...... Drainage port, 12 …… Lighting lamp, 1
3,29 …… Supporting tool, 14 …… Control device, 15 …… Piping member, 16
...... electric wire, 17 ...... insertion hole, 18,26 ...... partition plate, 19,20,21,
22,30 …… Panel, 23,31 …… Space, 24 …… Wiring, 25 ……
Components, 27 ... splits, 28 ... bushes.

Claims (2)

[Scope of utility model registration request] 1. A case, which has a built-in evaporator for cooling the products to be displayed and displayed inside, is arranged on the outer surface of the lower end of the heat insulating wall of a case which is partitioned by a heat insulating wall having a heat insulating property and whose outer surface is open. The control device and the electric device, which partition between an upper control device that controls an electric device installed in the machine and a lower pipe member that connects the evaporator and a device that constitutes an external refrigerator. An open show that accommodates and protects the control device in a space surrounded on all sides by a partition plate having an insertion hole through which an electric wire for supplying power from the outside of the device is formed, the heat insulating wall, and a panel covering the outer surface of the heat insulating wall. In a control device protection structure for a case, the space is hermetically sealed, and a support is provided for supporting the electric wire whose longitudinal direction is in the left-right direction along the outer surface of the heat insulating wall under the partition plate. show Control equipment protection structure of over nest. 2. The control device protection structure for an open showcase according to claim 1, wherein the partition plate is arranged in the longitudinal direction and is composed of a plurality of constituent members that are detachably supported in the case.