JP2000237013A - Intra-container illumination lighting device for low temperature showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the intra-container illumination lighting device of a low temperature showcase capable of simplifying electric wiring and reducing the number of parts. SOLUTION: This intra-container illumination lighting device of the low temperature showcase is attached to the low temperature showcase, is provided with a lighting circuit provided with an electronic stabilizer and a resonance capacitor and lights a fluorescent lamp connected between a pair of fluorescent lamp sockets. The pair of the fluorescent lamp sockets 51 are provided with a base part 71 provided with a pawl 71a for fixation to the low temperature showcase, a holder part 73 extended orthogonally to the base part 71 and a socket part 75 fixed to the holding part 73 and provided with a locking hole for locking a pair each of pins at both ends of the fluorescent lamp. Then, the resonance capacitor 66 is housed in the base part of either one of the pair of the fluorescent lamp sockets 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior lighting device for a low-temperature showcase mounted on, for example, a display shelf of a low-temperature showcase.

[0002]

2. Description of the Related Art Generally, a lighting circuit having an electronic ballast and a resonance capacitor is mounted on a display shelf for displaying fresh foods or the like in a low-temperature showcase installed in a supermarket or the like. A low-temperature showcase interior lighting lighting device for lighting a fluorescent lamp connected to a lighting device is known.

In this type, since the resonance capacitor is not a replacement part, the resonance capacitor is mounted on the tube by high-frequency crimping, or is built in a glow case. I have to.

[0004]

However, in the conventional interior lighting lighting device, the electric wiring becomes complicated and
There is a problem that the number of parts increases.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the conventional technology, to simplify the electric wiring and to reduce the number of parts, and to provide a lighting device for lighting in a refrigerator of a low-temperature showcase. To provide.

[0006]

According to a first aspect of the present invention, there is provided a lighting circuit which is mounted on a low-temperature showcase, has a lighting circuit having an electronic ballast and a resonance capacitor, and is connected between a pair of fluorescent lamp sockets. In the interior lighting lighting device of a low-temperature showcase for lighting a lamp, the pair of fluorescent lamp sockets includes a base having a claw for fixing to the low-temperature showcase, a holder extending perpendicular to the base, A socket portion fixed to the holder portion and having a locking hole for locking each pair of pins at both ends of the fluorescent lamp, wherein the base portion of any one of the pair of fluorescent lamp sockets is provided on the base portion. The present invention is characterized in that the resonance capacitor is housed.

According to a second aspect of the present invention, there is provided a low-temperature showcase which is mounted on a low-temperature showcase, includes a lighting circuit having an electronic ballast and a resonance capacitor, and lights a fluorescent lamp connected between a pair of fluorescent lamp sockets. In the interior lighting lighting device of the above, the pair of fluorescent lamp sockets includes a base portion having a claw for fixing to the low-temperature showcase, a holder portion extending perpendicular to the base portion, and a fluorescent light fixed to the holder portion. A socket having a locking hole for locking each pair of pins at both ends of the lamp, the resonance capacitors are respectively housed in the base portions of the pair of fluorescent lamp sockets, and each resonance capacitor is connected in series to the lighting circuit. Is connected.

In these inventions, since the resonance capacitor is housed in the base of the fluorescent lamp socket, the electric wiring can be simplified and the number of parts can be reduced without increasing the size of the fluorescent lamp socket.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a low-temperature showcase. The showcase 1 includes an insulating box 2 and the insulating box 2
And a partition member 8 provided with an interval between the partition member and the partition member. A cool air passage 5 is provided between the partition 8 and the heat insulating box 2.
The product display room 3 is provided inside the partition body 8. In the product display room 3, display shelves 50 for displaying products are provided in a plurality of stages, and the products are displayed on the shelves 50 as needed. A cooler blower 6 and a cooler 7 are housed in the lower cool air passage 5. In the drawing, solid arrows indicate the flow of cooling air. The air sucked into the cool air passage 5 from the inlet 11 at the lower front of the low-temperature showcase 1 is cooled through the cooler blower 6 and the cooler 7 and then reaches the top of the showcase 1 through the cool air passage 13 at the back. ,
It is blown out from the outlet 15. The cool air blown out from the outlet 15 cools the product display room 3, forms an air curtain on the front surface of the product display room 3, and is sucked into the cool air passage 5 from the inlet 11 again.

FIG. 2 shows an interior lighting device. The interior lighting device (including the fluorescent lamp 55) is fixed to, for example, the back surface 50a (FIG. 1) of the display shelf 50 of the low-temperature showcase 1, the vicinity of the outlet 15, or the like. That is, the interior lighting device includes a pair of fluorescent lamp sockets 51 and 53 fixed to the back surface 50 a of the display shelf 50, and a fluorescent lamp 55 is connected between the pair of fluorescent lamp sockets 51 and 53.

As shown in FIG. 3, the lighting circuit of the fluorescent lamp 55 includes an electronic ballast 62 connected to an AC power supply 61.
An intermediate socket 63 is connected to the electronic ballast 62. A plug 64 is connected to the intermediate socket 63 so as to be freely connected, and a pair of fluorescent lamp sockets 51 and 53 are connected to the plug 64.

A resonance capacitor 66 is connected to one lead wire 65 connecting the fluorescent lamp sockets 51 and 53,
This resonance capacitor 66 is integrally housed in one fluorescent lamp socket 51 as described later.

In this embodiment, as shown in FIGS. 4A to 4D, one fluorescent lamp socket 51 is provided with a base 71 having claws 71a for fixing to the display shelf 50, and the fluorescent lamp socket 51 is orthogonal to the base 71. Extending holder portion 73 and holder portion 7
3 and a socket 75 having a locking hole 75a for locking a pair of pins (not shown) at both ends of the fluorescent lamp 55. Then, as shown in FIG. 4B, the resonance capacitor 66 is integrally housed in the base portion 71,
This resonance capacitor 66 is connected to the lighting circuit shown in FIG. 3 as described above.

The base 71 is provided with a resonance capacitor 66.
When the fluorescent lamp socket 51 is fixed to the display shelf 50 in order to accommodate the fluorescent lamp 55, the fluorescent lamp 55 is attached between the display shelf 50 and the fluorescent lamp 55. Extend out of the way.

In this embodiment, since the resonance capacitor 66 is housed in the base 71 of the fluorescent lamp socket 51, it is not necessary to enlarge the fluorescent lamp socket 51. The size of the fluorescent lamp socket 51 may be the same as that of the conventional fluorescent lamp socket.
By accommodating the resonance capacitor 66, the electric wiring can be simplified, and the number of components can be reduced as compared with the conventional one.

As another embodiment, as shown in FIG.
Resonant capacitors 81 and 82 are connected to lead wires 80 in the lighting circuit.
Can be connected in series. In this case, a base 71 is formed in each of the fluorescent lamp sockets 51 and 53, and the resonance capacitors 81 and 82 are housed in the base 71.

By connecting two resonance capacitors 81 and 82 in series, dimming becomes possible, and each resonance capacitor 81 and 82 is connected to each fluorescent lamp socket 51 and 53.
Since the fluorescent lamp sockets 51 and 53 are housed in the base portions 71, respectively, the size of the fluorescent lamp sockets 51 and 53 can be reduced to the conventional size, electrical wiring can be simplified, and the number of parts can be greatly reduced. Become.

Although the present invention has been described based on one embodiment, it is apparent that the present invention is not limited to this.

[0020]

According to these inventions, since the resonance capacitor is housed in the base of the fluorescent lamp socket, the electric wiring can be simplified and the number of parts can be reduced without increasing the size of the fluorescent lamp socket. .

[Brief description of the drawings]

FIG. 1 is a diagram showing a low-temperature showcase.

FIG. 2 is a diagram showing an embodiment of an interior lighting device according to the present invention.

FIG. 3 is a diagram showing a lighting circuit.

4A is a front view of the fluorescent lamp socket, FIG.
c is the same rear view, and d is the same rear view.

FIG. 5 is a lighting circuit diagram showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Low-temperature showcase 50 Display shelf 50a Back surface 51,53 Fluorescent lamp socket 55 Fluorescent lamp 61 AC power supply 62 Electronic ballast 64 Plug 66,81,82 Resonance capacitor 71 Base 71a Fixing claw 73 Holder 75 Socket

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B110 AA12 BA05 HA08 HA14 3L045 AA05 AA07 BA01 CA02 DA02 EA01 GA07 HA01 KA01 PA04 PA06

Claims (2)

[Claims] An illumination lighting device for a low-temperature showcase, comprising: a lighting circuit attached to a low-temperature showcase, having a lighting circuit having an electronic ballast and a resonance capacitor, for lighting a fluorescent lamp connected between a pair of fluorescent lamp sockets. In the pair of fluorescent lamp sockets, a base portion having a claw for fixing to the low-temperature showcase, a holder portion extending orthogonally to the base portion, and a pair of fluorescent lamps fixed to the holder portion at each end of the fluorescent lamp A socket having a locking hole for locking a pin, wherein the resonance capacitor is housed in the base of one of the pair of fluorescent lamp sockets. Lighting device for interior lighting of the case. 2. A low-temperature showcase interior lighting device which is mounted on a low-temperature showcase, includes a lighting circuit having an electronic ballast and a resonance capacitor, and lights a fluorescent lamp connected between a pair of fluorescent lamp sockets. In the pair of fluorescent lamp sockets, a base portion having a claw for fixing to the low-temperature showcase, a holder portion extending orthogonally to the base portion, and a pair of fluorescent lamps fixed to the holder portion at each end of the fluorescent lamp A socket having a locking hole for locking a pin, wherein the resonance capacitors are respectively housed in the bases of the pair of fluorescent lamp sockets, and each resonance capacitor is connected in series to the lighting circuit. Lighting device for interior lighting of low-temperature showcases.