JP3101479B2 - Showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase in which electric parts such as a heater are mounted in a main body.

[0002]

2. Description of the Related Art Conventionally, a showcase of this type, particularly a so-called face-to-face type showcase in which western confectionery such as cakes and chocolates, or delicatessen products are displayed while being cooled, is disclosed in, for example, Japanese Patent Application Laid-Open No. 1-184382 (F25D).
As shown in FIG. 23/00), a transparent glass is provided on the front surface of the main body, and a plurality of sliding doors are provided on the rear surface to open and close the rear opening of the storage room so as to be openable and circulate cool air into the storage room. Thus, the temperature is cooled to a predetermined refrigeration temperature.

Further, a cooling device including a compressor and the like is installed in a machine room at a lower portion of the main body, and electric components such as a heater and a fluorescent lamp for preventing dew condensation on an opening edge and the like are installed in a storage room. Have been. FIG. 5 shows a rear perspective view of a conventional showcase 100 of this type. Showcase 100
A front glass 102 is attached to the main body 101 to form a storage room 103 opened to the rear surface, and this opening is closed by a sliding door type glass door 104 so as to be openable and closable.

In the storage room 103, a not-shown fluorescent lamp, a heater for preventing dew condensation on the opening edge and the like are mounted, and a machine room 105 having a rear opening at a lower portion of the main body 101.
Are formed. In the machine room 105, a compressor and a condenser (not shown) constituting a cooling device are installed, and an electric box 106 for supplying power to the compressor and the heater is mounted.

[0005] Of the left and right pedestals 107, 107 of the main body 101 located on both sides of the machine room 105, a drawing hole 108 is formed in the rear surface of one (eg, left) pedestal 107,
Power cords 110 and 111 connected to the electric box 106 are drawn out from the drawing hole 108 to the rear. Among them, the power cord 110 is for a three-phase 200 V, and is connected to a three-phase 200 V power outlet (not shown) to be used for power supply to the compressor, the heater, and the like. Also,
The power cord 111 is for a single-phase 100 V, and is connected to a single-phase 100 V power outlet (not shown) to be used for power supply to the fluorescent lamp and the like.

[0006]

By the way, in a store where such a showcase is installed in recent years, the remodeling cycle has been accelerated, and the layout in the store has been frequently changed. Accordingly, the installation location of the showcase is often changed in various ways. However, as described above, conventionally, the power cords 110 and 111 are provided from one side of the rear surface of the main body 101 of the showcase 100 (the left side in the embodiment).
, The outlet provided on the store wall or the like may be on the right side of the showcase 100 depending on the installation location of the showcase 100.

In such a case, it is necessary to connect the power cords 110 and 111 from left to right at the rear of the showcase 100, and in some cases, an extension cord is required. The risk of getting caught in the code was increased, creating a security problem.

The present invention has been made to solve the above-mentioned conventional technical problem, and provides a showcase capable of safely supplying power to electric components even when the installation location is changed. The purpose is to do.

[0009]

Means for Solving the Problems Showcase 1 of the present invention
Consists of electrical components mounted in the body,
Outlets for supplying power to electric components are attached to both sides of the main body, a power cord is detachably connected to these outlets, and both outlets are electrically connected by a relay line.

[0010] The showcase according to the second aspect of the present invention is the above-described showcase, wherein the terminal case is provided corresponding to the inside of the outlet, and the terminal plate is disposed in the terminal case and connected to the outlet. A lead portion formed on the lower surface of the terminal case, wherein wiring from an electric component is drawn into the terminal case from the lead portion and connected to the terminal plate.

[0011]

According to the showcase of the present invention, outlets for supplying power to the electric parts are provided on both sides of the main body, and these outlets are electrically connected to each other by a relay line. By connecting a detachable power cord to an outlet, power can be supplied to electric components in the main body. Therefore, even if the installation location of the showcase is changed and the positional relationship between the power outlet provided on the store wall and the showcase fluctuates, by connecting the power cord to an outlet closer to the power outlet, the power supply is connected. Power can be supplied to the showcase from the outlet at the shortest distance, which significantly improves safety and responsiveness to store layout changes.

When a plurality of showcases are arranged side by side, adjacent outlets of adjacent showcases can be connected by a connecting cord or the like, and each showcase is connected to a power outlet. This eliminates the need, simplifies wiring and facilitates wiring work.

Further, even if the width dimension of the showcase is changed, it can be dealt with only by changing the length of the relay line, so that it is versatile and suitable for small-lot production of other models.

Further, according to the showcase of the second aspect of the present invention, in addition to the above, the terminal case is provided inside the outlet, and the terminal plate connected to the outlet is provided in the terminal case. It is difficult for the hands to touch the terminal plate that becomes the live part, and it is difficult for water to splash, improving safety and waterproofness. In addition, wiring from electric components is formed from the drawn part formed on the lower surface of the terminal case to the inside of the terminal case. The terminal is connected to the terminal plate and connected to the terminal plate, so that a U-trap is formed on the wiring and the intrusion of dew condensation and the like in the terminal case can be prevented. Will be able to

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a rear perspective view of a showcase 1 of the present invention, and FIG.
FIG. 3 is an electric circuit diagram relating to power supply of the showcase 1. The showcase 1 of the embodiment is a so-called face-to-face type showcase that displays and sells confectionery such as cakes and chocolates or delicatessens while cooling the container. , And a top wall 6 attached to the upper end of the posts 4, 4, and a front wall attached between the front end of the top wall 6 and the front end of the heat insulating wall. The main body 3 is composed of the transparent glass 7 and the side glasses 8 and 8.

Inside the main body 3, there is formed a storage room 5 which is opened rearward, and a rear opening 5A of the storage room 5 is closed by four sliding glass doors 9 so as to be openable and closable. A bottom plate 11 is provided on the bottom surface of the storage room 5, and a cooler and a blower (not shown) constituting a cooling device are arranged in the heat insulating wall below the bottom plate 11. In addition, a suction port and a discharge port (not shown) opened to the storage chamber 5 are formed before and after the bottom plate 11.

A machine room 10 is formed at the lower part of the main body 3 located between the heat insulating wall and the lower floor surface. The machine room 10 has a rearward opening. A compressor, a condenser, an electric component box 21 and the like (not shown) constituting the apparatus are installed. Further, on both left and right sides of the machine room 10, pedestals 13 and 14 made of thick steel plate are located.

On the other hand, a plurality of shelves 12, 12 are provided on the columns 4, 4 in the storage room 5, and fluorescent lamps (not shown) are provided on the lower surface of the ceiling wall 6 and the lower surfaces of the shelves 12, 12. Are attached to each other. Further, for example, a heater 16 for preventing dew condensation is provided around the rear opening 5A of the storage chamber 5.
(Shown in FIG. 2) are attached.

At the lower part of the rear surface of the left and right pedestals 13 and 14,
A pair of through holes 17 and 18 are formed in the upper and lower sides, respectively. Single-phase outlets 22 and 23 are attached to the upper left and right through holes 17 and 17 respectively. Are equipped with twisted three-phase outlets 26 and 27, respectively, facing rearward.

Further, on the inner surfaces of the left and right pedestals 13 and 14,
Left and right terminal cases 28 and 29 are attached to the inside of the left and right outlets 22, 26 and 23 and 27, respectively. Each terminal case 28, 29 is composed of terminal boxes 31, 32 opened on the side and rear surfaces, and box covers 33, 34 for closing the side surfaces of the terminal boxes 31, 32. Are provided with through holes 36 and 37, respectively, as draw-in portions.

Then, the terminal boxes 31 and 32 are screwed to the inner surfaces of the pedestals 13 and 14 in a state where their front openings are closed by contacting the inner surfaces of the pedestals 13 and 14. In the terminal boxes 31 and 32, 2-pin terminal plates 41,
The 42 and 3-pin terminal plates 43 and 44 are stored and fixed (FIG. 2).
), The 2-pin terminal plate 4 in the left terminal box 31
1 is electrically connected to the single-phase outlet 22 on the left, the three-pin terminal board is electrically connected to the three-phase outlet 26, and the two-pin terminal plate 42 in the right terminal box 32 is connected to the single-phase outlet 23 on the right. The three-pin terminal board is electrically connected to the three-phase outlet 27, respectively.

The dew condensation preventing heaters 16...
Are drawn into the terminal boxes 31 and 32 from the through holes 36 and 37 on the lower surface of the left and right terminal boxes 31 and 32, respectively, as shown in FIG. Are electrically connected to each other. Further, the left and right two-pin terminal plates 41 and 42 are electrically connected to each other by a relay line 47 extending right and left in the machine room 10, and the left and right three pin terminal plates 43 and 44 are also relayed right and left in the machine room 10. It is electrically connected by a line 48. Then, these relay lines 47, 4
8, the terminal boxes 31, 32 from the through holes 36, 37 as well.
After these wirings are completed, the box covers 33 and 34 are screwed to close the side openings of the terminal boxes 31 and 32.

As described above, since the respective wires are drawn from the through holes 36 and 37 on the lower surface of the terminal boxes 32 and 32, the lead wires 46 and the relay wires 47 and 48 have the U trap before entering the through holes 36 and 37. Is formed. Therefore,
Condensed water or the like adhering to these wires may cause the terminal cases 28, 2
9 can be prevented beforehand from invading inside 9 and causing an electric leakage failure or the like. A lead wire from the electrical box 21 is also drawn into the terminal case 28 or 29 from the through holes 36 and 37 and connected to each terminal plate.

When power is supplied to the showcase 1 with the above configuration, the single-phase outlet 22 or 23 closer to the power outlet provided on the store wall or the like where the showcase 1 is installed. , And the single-phase power cord 51 and the three-phase power cord 52 are detachably connected to the three-phase outlet 26 or 27. At this time, since the three-phase outlets 26 and 27 are twisted, it is difficult to remove them.

That is, for example, when the power outlet on the wall surface of the store is located on the right side of the showcase 1, the single-phase power cord 51 is connected to the single-phase outlet 23 and the three-phase outlet 27 on the right side as shown in FIG. And three-phase power cord 52
Conversely, when the power outlet is located on the left side of the showcase 1, the single-phase power cord 51 and the single-phase power cord 51 are connected to the left single-phase outlet 22 and the three-phase outlet 26 as shown in FIG. The three-phase power cords 52 are connected respectively.

At this time, the terminal plates 41 and 42 and 43
And 44 are connected by relay wires 47 and 48, respectively, and in each case, by connecting the power cords 51 and 52 to single-phase and three-phase power outlets,
For example, both 2-pin terminal plates 41 and 42 receive single-phase 100V power, and both 3-pin terminal plates 43 and 44 receive three-phase 200V.
Electric power is applied to each of the heaters 16 and the compressor (three-phase 200 V) and fluorescent lamp (single-phase 100 V) connected to the electrical box 21.

Therefore, even if the installation location of the showcase 1 is changed and the positional relationship between the power outlet provided on the store wall and the showcase 1 fluctuates, the single-phase outlet 22, which is closer to the power outlet, By connecting the single-phase power cord 51 and the three-phase power cord 52 to the 23 and three-phase outlets 26 and 27, power can be supplied to the showcase 1 at the shortest distance from the power outlet. Therefore, it is possible to prevent the occurrence of an accident such as a salesperson getting caught on the cord, and the security and the responsiveness to the change in the store layout are remarkably improved.

Further, each of the terminal plates 41, 43 serving as live parts,
Since the terminals 42 and 44 are accommodated in the terminal cases 28 and 29, the terminal plates 41, 43, 42 and 44 are hardly touched by water and hardly splashed with water, thereby improving safety and waterproofness.

Incidentally, showcase 1 and showcase 1A
3, the single-phase outlets 23 and 22 and the three-phase outlets 27 and 26 of the adjacent showcases 1 and 1A are connected to the single-phase connecting cord 53 and the three-phase The connection is made by the connection code 54. Thereby, each terminal board 22, 2 of both showcases 1, 1A
4, 22, 23, 26, 27, 26, 27 are electrically connected as shown in FIG. 4, for example, the single-phase power cord 51 is connected to the single-phase outlet 22 on the left side of the showcase 1 on the left side. By connecting the three-phase power cord 52 to the three-phase outlet 26, power can be supplied to the heaters 16 of the two showcases 1 and 1A.

Accordingly, it is not necessary to connect each of the showcases 1 and 1A to a power outlet, which simplifies electric wiring and facilitates wiring work. Further, even when the width of the showcase 1 is changed, the relay line 47,
Since only the length of 48 needs to be changed, the versatility is enhanced.

In the embodiment, the present invention is applied to a so-called face-to-face type showcase. However, the present invention is not limited to this, and the present invention is effective to various showcases having electric components such as heaters in a main body.

[0032]

As described above in detail, according to the present invention, outlets for supplying power to the electric parts are provided on both sides of the main body, and these outlets are electrically connected to each other by a relay line. By connecting a detachable power cord to the outlet, power can be supplied to electric components in the main body. Therefore, even if the installation location of the showcase is changed and the positional relationship between the power outlet provided on the store wall and the showcase fluctuates, by connecting the power cord to an outlet closer to the power outlet, the power supply is connected. Power can be supplied to the showcase from the outlet at the shortest distance, which significantly improves safety and responsiveness to store layout changes.

When a plurality of showcases are arranged side by side, adjacent outlets of adjacent showcases can be connected with a connecting cord or the like, and each showcase is connected to a power outlet. This eliminates the need, simplifies wiring and facilitates wiring work.

Further, even if the width dimension of the showcase is changed, it can be dealt with only by changing the length of the relay line, so that it is versatile and suitable for small-lot production of other models.

According to the second aspect of the present invention, in addition to the above, the terminal case is provided inside the outlet, and the terminal plate connected to the outlet is provided in the terminal case. It is difficult for the hands to touch the terminal board that is to be used, and it is difficult for water to splash, improving safety and waterproofness,
Wiring from electrical parts is drawn into the terminal case from the lead-in portion formed on the lower surface of the terminal case and connected to the terminal plate, so that a U trap is formed in the wiring, and condensed water and the like in the terminal case are formed. Since the intrusion can be prevented, the occurrence of a leakage fault or the like can be significantly reduced as a whole.

[Brief description of the drawings]

FIG. 1 is a rear perspective view of a showcase of the present invention.

FIG. 2 is an electric circuit diagram related to power supply of a showcase of the present invention.

FIG. 3 is a rear perspective view of a state in which two showcases of the present invention are arranged side by side.

FIG. 4 is an electric circuit diagram of each showcase in the case of FIG. 3;

FIG. 5 is a rear perspective view of a conventional showcase.

[Explanation of symbols]

 1, 1A Showcase 3 Main body 5 Storage room 10 Machine room 16 Heater 22, 23 Single-phase outlet 26, 27 Three-phase outlet 28, 29 Terminal case 36, 37 Through hole 41, 42 2-pin terminal plate 43, 44 3 Pin terminal plate 47, 48 Relay wire 51 Single-phase power cord 52 Three-phase power cord

Continuation of the front page (56) References JP-A-7-91824 (JP, A) Jiko 60-18852 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) F25D 11 / 00-29/00 A47F 3/04

Claims (2)

(57) [Claims] 1. A showcase comprising an electric component mounted inside a main body, an outlet for supplying power to the electric component is mounted on both sides of the main body, and a power cord is detachably connected to the outlet. A showcase in which both outlets are electrically connected by a relay line. 2. A terminal case provided corresponding to an inner side of the outlet, a terminal plate disposed in the terminal case and connected to the outlet, and a lead-in portion formed on a lower surface of the terminal case. 2. The showcase according to claim 1, wherein wiring from an electric component is drawn into the terminal case from the drawing portion and connected to the terminal plate.