JPH0544707Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is equipped with a door at the front opening of the main body case, and the cool air passes through the circulation path inside the main body case and runs along the inner surface of the closed door. The present invention relates to an interior lighting device for illuminating the interior of the refrigerator using straight tube fluorescent lamps in a case with a front door in which the interior of the refrigerator is cooled by cold air flowing through the refrigerator.

[Conventional technology]

The case shown in FIGS. 3 and 4 is known as a show case with a front door. In the figure, a main body case 1 of the show case has an open front side and a refrigerator interior 2 formed inside thereof, and a pair of left and right doors 3 with double doors are provided on the front side. This door 3 has a large glass installed in the center to insulate the inside and outside of the refrigerator, and a gasket 3a is installed on the inner surface of the door frame. The main case is an outer box 4 made of a heat insulating wall.
and an inner box 5 that forms the inside of the refrigerator 2, and a cold air circulation path 6 is formed between the outer box 4 and the inner box 5, and a fan 7 and a cooler 8 are disposed therein. be done. The outer box 4 is provided with pillars 4a at the periphery of the front opening and at the center of the opening to form a contact surface 4b with which the gasket 3a comes into close contact when the door 3 is closed. The interior of the refrigerator 2 is provided with multi-stage shelves 21 above and below so that a large quantity of products can be effectively stored and displayed, and is illuminated by an interior lighting device 10.

As shown in FIG. 5, the interior lighting device 10 has a holder 11 protruding from above and below the inner surface of the support column 4a on the front surface of the outer box 4, and a straight tube fluorescent lamp 1 is installed in the holder 11.
2 is installed and configured. Note that 9 is a dew-proof heater provided to prevent dew from forming on the front surface of the support column 4a.

In the above case, air inside the refrigerator is sucked into the cold air circulation path 6 from the suction port 6a by the fan 7,
The air is cooled by the cooler 8 and becomes cold air, which is then blown out from the air outlet 6b and circulated. The cold air blown out from the outlet 6b flows along the inner surface of the door 3, forming a cold air curtain on the front surface of the refrigerator to cool the interior 2, and when the door 3 is opened, outside air flows into the interior of the refrigerator. Preventing intrusion.

[The problem that the idea aims to solve]

By the way, the conventional show case has the disadvantage that part of the cold air blown out from the outlet 6b is blocked by the fluorescent lamp 12, and the formation of a cold air curtain behind it is insufficient, making it difficult to cool the products displayed behind the support column 4a. There is. In addition, the above product has 12 fluorescent lights.
Because the products are easily affected by radiant heat, the temperature at which they are kept cool is higher than products in other locations, resulting in problems such as reduced freshness of the products.

The object of this invention is to provide a lighting device for the interior of a show case with a front door, which can uniformly form a cold air curtain at the front of the interior of the refrigerator and eliminate the rise in storage temperature of products behind the fluorescent lights.

[Means to solve the problem]

In order to achieve the above object, according to this invention, a door provided at an opening on the front surface of the main body case is closed by bringing its opening/closing end into contact with a support provided on the front surface, and the opening In a refrigerator interior illumination device that is attached to a front door-equipped show case that is formed at the rear and isolates the interior of the refrigerator, which is cooled by cold air flowing along the inner surface of the door, from outside air, and that illuminates the interior of the refrigerator with a straight tube fluorescent lamp. A vertically extending recess is formed on the inner surface of the support column, and the fluorescent lamp is housed in the recess.

[Effect]

It is possible to prevent the fluorescent lamps from protruding into the front of the warehouse forming a cold air curtain, and to increase the distance between the fluorescent lamps and the displayed products.

〔Example〕

Figure 1 shows an embodiment of this invention;
Components common or identical to those in the figures to FIG. 5 are designated by the same reference numerals.

In FIG. 1, a column 4a standing upright at the center of the opening on the front surface of the outer box 4 has a recess 15 having a trapezoidal cross section and running vertically on its inner surface. Then, holders 11 are installed above and below this recess, and fluorescent lamps 12 are attached.

In the above-described configuration, in the interior lighting device 10, most of the fluorescent lamps 12 fit within the inner surface of the support column 4a. This fluorescent lamp 12 illuminates the entire interior 2 of the refrigerator to enhance the display effect of the products as in the conventional case, and is further away from the products displayed in the refrigerator 2 compared to the conventional one, so that radiant heat hardly affects the products. Furthermore, the flow of cold air blown out from the outlet 6b can no longer be prevented, and the cold air uniformly forms a cold air curtain on the front surface of the refrigerator interior 2 and cools the refrigerator interior 2. Therefore, it is avoided that the cold storage temperature of the products behind the support column 4a is higher than that of the products in other locations.
Furthermore, by efficiently transmitting the heat generated by the fluorescent lamp 12 to the support column 4a, the anti-condensation heater 9 can be omitted in a case with a specification where the internal temperature is relatively high. Further, since the fluorescent lamp 12 is not exposed to the cold air curtain and is not cooled, effects such as increased brightness can be obtained.

FIG. 2 shows another embodiment, which differs from the previous embodiment in that a transparent plastic cover 16 is provided on the inside of the fluorescent lamp 12 so as not to prevent the flow of cold air. This is the point I made. In this embodiment, the heat of the fluorescent lamp 12 is further trapped in the recess 15, and the dew-proofing heater 9 is omitted and the fluorescent lamp 12 is
A great effect can be obtained by increasing the brightness of the

[Effect of the invention]

According to this idea, a recess running vertically is formed on the inner surface of the support provided on the front of the main body case, and the fluorescent lamp is housed and installed in this recess, so that the cool air blown out from the outlet is inside the refrigerator. A cold air curtain is uniformly formed in the front and the inside of the store is cooled, and the radiant heat of the fluorescent lamps hardly affects the displayed products, so that the products in the store are uniformly cooled and kept cold.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main parts of a show case equipped with an interior lighting device of this invention, Fig. 2 is a sectional view corresponding to Fig. 1 showing a different embodiment of this invention, and Fig. 3. is a perspective view of a show case to which this invention is applied, FIG. 4 is a longitudinal sectional view, and FIG. 5 is a sectional view corresponding to FIG. 1 of a show case equipped with a conventional refrigerator interior lighting device. 1...Main case, 2...Inside the refrigerator, 3...Door, 4
a... Support column, 10... Interior lighting device, 11... Fluorescent lamp, 15... Recess.

Claims (1)

[Scope of utility model registration request] A door provided at an opening on the front side of the main case is closed by bringing its opening/closing side end into contact with a support provided on the front surface, and cool air formed at the rear of the opening and flowing along the inner surface of the door causes the door to close. In a refrigerator interior lighting device that is attached to a show case with a front door that isolates the interior of the refrigerator to be cooled from outside air and illuminates the interior of the refrigerator with straight tube fluorescent lamps, a recess that runs vertically on the inner surface of the pillar is provided. An interior lighting device for a show case with a front door, characterized in that the fluorescent lamp is housed and installed in the recess.