JP2000201781A - Electric equipment box for show case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric equipment box for show case in which cross wiring is easily done and which can be easily mounted on a show case after cross wiring completion. SOLUTION: This electric equipment box 11 is installed under a show case main body 1 with electric equipment and stores electric equipment 14 connected to electric appliances via wiring 29a and 29b. The electric equipment box 11 is has a support frame 12 fixed on the show case main body 1 and an electric equipment box main body 13 which is out-drawably held by the support frame 12 and holds the electric equipment 14 inside. The electric equipment box 13 is made into a box shape whose upper face is opened and cut-offs 25 and 26 with upward opening are equipped on right and left side plates 23 and 24 of the electric equipment box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical box for a showcase applied to, for example, a refrigerated showcase for food display, and more particularly to a connecting wire between a plurality of adjacent showcases at a place where the showcase is installed. The present invention relates to a showcase electrical box that can be easily connected.

[0002]

2. Description of the Related Art In a refrigerated showcase used in a supermarket or the like, an electric component is provided at a lower portion of the showcase main body as a relay for power distribution to electric appliances such as a cooler, a fan, and an illumination light installed in the showcase main body. Is attached. With regard to this electrical component, in the conventional spread type, only the terminal block was fixed to the showcase body as a repeater, but with the recent enhancement of the showcase functionality, new electrical components such as control boards are installed The need has come.

[0003] Therefore, recently, it has been considered that an electrical box is removably installed at the lower part of the showcase body so that electrical components can be detachably stored inside the electrical box.
As an electrical box for a refrigerated showcase, for example, Japanese Unexamined Patent Publication No.
Japanese Patent Application Laid-Open No. 34056, Japanese Patent Application Laid-Open No. 9-252894, and the like are known.

[0004]

However, in the conventional showcase electrical box disclosed in the above-mentioned publications and the like, the primary power supply between the adjacent showcases and the signal, No special consideration is given to the easiness of the work of crossover wiring. That is, in the conventional example, it is difficult to route the crossover wiring, and the wiring work is performed from behind or below the electrical box, and the electrical box after the completion of the crossover work is attached to the showcase body. Was not easy.

The present invention has been made in view of the above-mentioned problems, and has been made in view of the above-described problems. In this case, the wiring for the crossover is easy, and the electrical box after the completion of the crossover wiring can be easily attached to the showcase body. It is intended to provide boxes.

[0006]

According to the present invention, the above-mentioned problem is solved as follows.

(1) An electrical box for a showcase which is installed at a lower portion of a showcase main body provided with an electric appliance and stores electric components connected to the electric appliance via wiring,
A support frame fixed to the showcase body, and an electrical box main body that is held by the support frame so as to be able to be pulled out and holds the electrical component therein, wherein the upper surface of the electrical box body is The opening is box-shaped, and the left and right side plates of the electrical box main body are provided with notches for wiring insertion that are open upward.

(2) In the above item (1), the electric component held by the electric box main body is mounted on a mounting plate having a flat upper surface with a peripheral portion bent downward, and the mounting plate is attached to the electric box. It can be taken out above the main body.

(3) In the above item (1) or (2), the upper opening of the electrical box main body is shielded by a plate-like removable upper cover whose peripheral portion is bent downward.

(4) In any one of the above items (1) to (3), the support frame has a forward opening communicating with the notch in a portion corresponding to the notch in the side plate of the electrical box main body. And

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings, taking an electric box for a refrigerated showcase as an example.

FIG. 1 is a longitudinal sectional side view showing an arrangement example of an electric box in a refrigerated showcase, FIG. 2 is an enlarged view showing an arrangement portion of the electric box, FIG. 3 is a front view of FIG. FIG.
FIG. 5 is an exploded perspective view showing an extracted electrical component box, and FIG. 5 is an exploded perspective view showing components of the electrical component box.

As shown in FIG. 1, a showcase main body (1) of the refrigerated showcase includes a base (2) mounted on a floor surface.
With a front opening (3) for taking out goods on the upper surface of
(4) is provided. Front opening (3) of housing (4)
Inside, a shelf plate (6) of a plurality of upper and lower stages constituting a product storage section (5) is installed. A cooler (8) and a fan (9) are disposed inside a cool air passage (7) formed below, behind, and above the product storage section (5).

[0014] Thus, the air taken into the cool air passage (7) from the suction portion provided below the front opening (3) of the housing (4) is cooled by the cooler (8) to cool the cool air. The air is blown by a fan (9), and cool air is blown out from a blowout portion provided above the front opening portion (3) toward a suction portion, so that the front opening portion is opened.
(3) An air curtain is formed.

Although not shown, an illumination lamp for irradiating the product storage section (5) is provided inside the housing (4). In addition, a guard (10) for buffering a cart or the like at the time of abutment is provided on a lower portion of the front surface of the housing (4) of the showcase body (1). A plurality of the showcase bodies (1) are arranged on the floor in a store adjacent to each other.

In this embodiment, as shown in FIGS. 2 and 3, one side of a rear lower part of a guard (10) provided at a lower front part of a housing (4) of a showcase body (1), for example, a front part An electrical box (11) is provided on the right side of the view as a repeater to electrical equipment such as a cooler (8), a fan (9), and a lighting lamp.

The electrical box (11) has a support frame (12) fixed to the showcase body (1), and an electrical box body (13) held so as to be able to be pulled out from the support frame (12). , Electrical box body (13)
Inside, a mounting plate (15) holding an electrical component (14) is stored, and the upper part of the mounting plate (15) is shielded by an upper cover (16) mounted on the electrical box body (13). .

Next, the configuration of the electrical box (11) will be described. First, the components of the electrical box (11) and the assembly configuration will be described with reference to FIGS.

As shown in FIGS. 4 and 5, the support frame (12)
Has a square bottom plate (17) and a side plate (18) rising from one side edge (left side edge) of the bottom plate (17).
It is shaped like a letter. The support frame (12) is formed by bending one sheet metal material. The same applies to the electrical box body (13), the mounting plate (15) and the upper cover (16).

At the front edge of the bottom plate (17) of the support frame (12), a hanging piece (17a) for reinforcement or the like is bent. Side plate (18)
On the front edge side, a U-shaped opening (19) with a front opening for electric wire insertion is cut out, and a horizontal protruding piece (18a) facing outward is bent at the upper end of this side plate (18). Have been. The projecting piece (18a) has a plurality of attachment holes (20) for attachment to the showcase body (1).

On the other side edge (right side edge) and the rear edge of the bottom plate (17), hook pieces (21) and (22) each having a U-shaped cross section for hooking to the showcase body (1) are folded. The song is formed. In addition,
The configuration for attaching to the showcase main body (1) and the hooking configuration will be described later.

The electrical box main body (13) is provided with a bottom plate (17) of the support frame (12).
It is slidably mounted on the top and has a box shape with an open top. At the positions near the front side of the left and right side plates (23) and (24), the notches (25) and (26) for wiring insertion opening upward and facing each other are substantially square. Each is formed. Notch (25) on left side plate (23)
When the electrical box body (13) is inserted all the way into the bottom plate (17) of the support frame (12), it communicates with the opening (19) of the side plate (18) of the support frame (12). A handle (28) is provided on a front plate (27) of the electrical box body (13).

The electrical box body (13) has different heights from the center, for example, the left half is higher than the right half in consideration of the installation space, but this may be reversed. The right and left may be the same height.

The mounting plate (15) for mounting the electrical components has a rectangular plate shape which can be stored horizontally in the electrical box main body (13), and its periphery is bent downward and reinforced, and the upper surface is flat. It has become.

On the upper surface of the mounting plate (15), a plurality of electrical components (1
4) (for example, the main board (14a) and the terminal board (14b), etc.) are attached. Wires (29a) (29b) are connected to these electrical components (14) separately from the left and right directions via connection terminals (30) and the like. For example, one wire (29a) is a power supply wire, and the other wire (29b) is the showcase body (1).
Wiring to the electrical components (8), (9), etc. provided at the same time, and crossover wiring to the electrical components provided at another showcase (not shown).

The upper cover (16) closes the upper opening of the electrical box main body (13) and can be detachably fitted to the upper end of the peripheral side wall of the electrical box main body (13). That is, the upper cover (16) is composed of a top plate portion (16) having a step formed by bending one sheet metal material and a hanging piece (16b) having its peripheral portion bent downward. Thereby, each of the hanging pieces (16b) can be fitted to the upper end of the peripheral side wall of the electrical box body (13) having different left and right heights in a state of being covered from the outer surface side, and the inside of the electrical box body (13) can be fitted. Mounting plate stored in (15)
The electrical component (14) is shielded from above.

FIGS. 2 and 3 show a state where the electrical box (11) having such a configuration is assembled and attached to the showcase body (1). As shown in these figures, the electrical component box body (13) has an electrical component (14) and a mounting plate (15) inside.
With the top covered with the upper cover (16), it is slidably inserted and placed to the back on the bottom plate (17) of the support frame (12), and is held so that it can be taken out forward .

The support frame (12) is attached to the bottom or the base (2) of the housing (4) of the showcase body (1). That is, the projecting piece (1) provided at the upper end of the side wall (18) of the support frame (12)
8a) comes into contact with the bottom base (2) of the housing (4) and is fixed by fasteners (31) such as bolts passed through the mounting holes (20). The engaging pieces (21) and (22) of the support frame (12) are engaged with holes provided in the base (2) or engaging portions (32) such as steps.

(33) covers the front of the electrical box (11),
It is a front lower cover detachably attached to the lower part of the showcase body (1) below the guard (10). When the front lower cover is attached, the electrical box (11) is not exposed to the front.

In the case of performing initial wiring work under such a mounting configuration, for example, first, the electrical box main body (1
With 3) pulled out from the support frame (12), that is, the front of the showcase body (1), and removed, put it on the front of the showcase and remove the upper cover (16).

In this state, one of the right and left side plates of the electrical box main body (13), for example, the notch (25) of the left side plate (23), is used to cut one electric wire (29a) as a primary power supply or a signal line. The wiring is connected to the electrical component (14) of the mounting plate (15) in the electrical component box body (13), that is, to the terminal block (14b), the main board (14a) and the like.

The other electric wire (29b), which is a crossover wiring to another adjacent showcase, is connected to the electrical component (14) and drawn out from the other notch (26).

In the wiring operation, the mounting plate (15) on which the electrical component (14) is mounted may be once removed from the electrical box main body (13), and may be inserted into the electrical box main body (13) after wiring. .

After such wiring work, the upper cover (16)
To be in the upper shielding state, and the electrical box body (13)
(12) Store inside. In this storage state, the notch (25) on the left side of the electrical box body (13) is attached to the side plate (18) of the support frame (12).
Of the electric wire (29a)
Through these notches (25) and openings (19), they can be inserted outside.

A notch (26) on the right side of the electrical box body (13)
Is open to the other flat side of the support frame (12), so that the other electric wire (29b) can be inserted outside through the notch (26). Therefore, an unreasonable bending load or the like along the vertical direction and the front-rear direction does not occur on the electric wires (29a) (29b). In addition, the upper surface of the electrical box main body (13) is protected by being covered with an upper cover, so that the electrical component (13) can be reliably protected from, for example, water droplets and dust.

As described above, according to the present embodiment, since the notches (25) and (26) are formed on the side surface of the electrical box main body (13), the electric wires (29a) (29b ) Can be directly inserted into the electrical box body (13) or taken out in the opposite direction. Therefore, connection work such as crossover wiring and the like can be easily performed, and the movement of electric wires when taking out the electrical box body (13) is small, and the load on the electric wires (29a) (29b) can be minimized.

Further, since the notches (25) and (26) are open upward, there is no need to pass through the holes as in the conventional case. The notch (25) (26) of the electrical box body (13) and the support frame (12)
The opening (19) can also be used as a wiring route of an electric wire connecting the showcase body (1) and the electrical box (11).

Further, since the upper surface of the mounting plate (15) for mounting the electrical component (14) is flat, operations such as wiring connection can be easily performed. In particular, when taking out the mounting plate (15) from the electrical box main body (13) once and working on it, the side plates (23) (2
4) Wiring work can be performed very easily without disturbing 4).

Further, since the notches (25) and (26) of the electrical box main body (13) are open upward, when the mounting plate (15) after wiring is inserted into the electrical box main body (13), There is no problem with crossover wiring.

Further, the electrical component (14) can be protected from water drops and dust by the upper cover (16), and the upper cover (16) can be freely removed from the electrical component box body (13). Since it can be fitted, the wiring work is also easy in this respect.

Further, the notches (25) and (26) on the left side of the electrical box main body (13) of the support frame (12) are provided with the opening (1) of the side plate (18) of the support frame (12).
9) and open to the other flat side of the support frame (12), the electric wires (29a) and (29b) can be wired without generating an excessive bending load or the like.

[0042]

According to the present invention, the following effects can be obtained. According to the first aspect of the invention, since the notch is formed on the side surface of the electrical box main body, the electric wire from the lateral direction can be directly inserted into the electrical box main body, or can be taken out in the opposite direction. Therefore, connection work such as crossover wiring and the like can be easily performed, and the movement of electric wires when removing the electrical box main body is small, so that the load on the electric wires can be minimized.
In addition, since the notch is open upward, there is no need to pass through the hole as in the related art. The notch on the control box
It can also be used as a wiring route for wires connecting the showcase body and the electrical box.

According to the second aspect of the present invention, since the upper surface of the mounting plate on which the electrical components are mounted is flat, operations such as wiring connection can be easily performed. In particular, when the work is performed by once removing the mounting plate from the electrical box main body, the wiring work can be easily performed without the side plate of the electrical box main body being in the way. Furthermore, since the notch of the electrical box main body is open upward, when the mounting plate after wiring is inserted into the electrical box main body, crossover wiring or the like does not hinder.

According to the third aspect of the present invention, the upper cover can protect the electrical components from water droplets and dust, and the upper cover is freely detachable from the electrical box main body. Wiring work becomes easy.

According to the fourth aspect of the present invention, since the notch of the electrical box main body of the support frame communicates with the opening of the support frame, the electric wires can be wired without generating an excessive bending load or the like. .

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a showcase electrical box according to the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a front view of FIG. 2;

FIG. 4 is an enlarged perspective view showing an extracted electrical box in the embodiment.

FIG. 5 is an exploded perspective view showing components in the embodiment.

[Explanation of symbols]

 (1) Showcase body (2) Base (3) Front opening (4) Housing (5) Product storage section (6) Shelf (7) Cold air passage (8) Cooler (9) Fan (10) Guard (11) Electrical box (12) Support frame (13) Electrical box body (14) Electrical components (14a) Main board (14b) Terminal board (15) Mounting plate (16) Top cover (17) Bottom plate (17a) Hanging (18) Side plate (18a) Projecting piece (19) Opening (20) Mounting hole (21) (22) Hook piece (23) (24) Side plate (25) (26) Notch (27) Front plate (28 ) Handle (29a) (29b) Electric wire (30) Terminal block (31) Fastener (32) Locking part (33) Front lower cover

Claims (4)

[Claims] An electronic box for a showcase, which is installed at a lower portion of a showcase main body provided with an electric appliance and stores electric components connected to the electric appliance via wiring, is fixed to the showcase main body. And a support frame that is provided with an electrical box main body that is held in the support frame so as to be able to be pulled out and holds the electrical component therein, wherein the electrical box main body has a box shape with an open top surface, An electrical box for a showcase, wherein cutouts for wiring insertion are provided on the left and right side plates of the electrical box body so as to open upward. 2. An electric component held by an electric box main body is mounted on a mounting plate whose upper surface is bent downward at a peripheral portion and has a flat upper surface, and the mounting plate can be taken out above the electric box main body. An electrical box for a showcase according to claim 1. 3. The showcase electrical box according to claim 1, wherein an upper surface opening of the electrical box body is shielded by a detachable upper cover having a peripheral portion bent downward. 4. The showcase according to claim 1, wherein the support frame has a forward opening communicating with the notch at a position corresponding to the notch in the side plate of the electrical box main body. Electrical box.