JPH07260341A - Structure of electrical control box - Google Patents

Abstract

PURPOSE:To prevent the entrance of water into an electrical control box and to effectively protect electronic components contained in the box by inclining downward an upper surface of a cover from a front side toward a rear side, and bending a cover for covering a boxlike body from outside at an edge of the cover. CONSTITUTION:An electrical control box 20 has a boxlike body 24 opened at front and upper surfaces, and a cover 26 detachably mounted at the body 24 to close the openings. The body 24 is formed by erecting right and left side plates 54 and a back plate 56 from a bottom plate. On the other hand, the cover 26 is so formed that an upper plate 36 is inclined down from a front side toward a rear side, and a label 74 is arranged on an entire front surface of an upper front plate 38 bent and suspended from the plate 36. A cover 76 covering the plates 54 of the body 24 from outside is bent at both right and left side edges of the plates 36 and 38 of the cover 26. Further, a similar cover 78 is also bent at both right and left side edges of the plate 48 of the cover 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical equipment box structure,
More specifically, for example, water used during cleaning is prevented from entering the inside of an electrical equipment box installed in a machine room such as a refrigerator, and various electronic components stored in the electrical equipment box are reliably protected. The present invention relates to an electrical equipment box structure configured to be capable of

[0002]

2. Description of the Related Art A cabinet is configured horizontally to serve as a refrigerator or freezer (hereinafter simply referred to as "refrigerator"), etc., for freezing and storing vegetables, fruits and other fresh foods such as meat and fish (hereinafter referred to as "ingredients") for a long period of time. Horizontal refrigerators are known. FIG. 6 shows a part of this horizontal refrigerator. Inside a horizontally long box-shaped main body (cabinet) 10, a storage chamber (not shown) for cooling and storing foodstuffs is provided. A machine room 12 adjacent to the storage room with a drawing wall is defined.
Inside the machine room 12, a refrigeration mechanism 16 including a condenser 14, a cooling fan, a compressor, and the like, and a cooler (not shown) in which a refrigerant is circulated and supplied from the refrigeration mechanism 16 are arranged.
The cooler cools the storage chamber. A front panel 18 is provided on the front of the machine room 12.
Is mounted so that it can be opened and closed, and is always closed to keep the machine room 12
Is covered. A transparent window 22 is provided on the upper front surface of the front panel 18 at a position corresponding to the front surface side of an electrical equipment box 20 described later.

An electric equipment box 20 is arranged above the front of the machine room 12, and a microcomputer or an electromagnetic relay for controlling the operation of various electric equipment and electric parts arranged in the refrigeration mechanism 16 is provided in the electric equipment box 20. A control board (not shown) on which electronic components such as a power transformer are mounted is housed. As shown in FIG. 7, the electrical component box 20 is formed of, for example, a stainless steel plate in a box shape and has a main body 24 that is open to the front and upper surfaces, and is detachably attached so that the front and upper surfaces of the main body 24 are closed. And a cover body 26,
The control board is disposed on the back surface of the cover body 26. As shown in the figure, the main body 24 has positioning edges 28 that are bent inward (in the direction of the opening) at the open end edges of the front surface and the top surface, and the positioning edges 28 have a plurality of screws. A hole 28a is provided. And the cover body 26
Is positioned with respect to the main body 24 with the back surface abutting on each positioning edge 28, and the screw 34 is inserted through each through hole 30 and the inverted U-shaped groove 32 formed at the position corresponding to the screw hole 28a. Is configured to be positioned and fixed by screwing.

A cover body 2 for closing the upper surface of the main body 24.
An upper front plate 38, which is bent at a right angle, hangs down from the front edge of the horizontal upper plate 36 in FIG. 6, and the upper front plate 38 closes the upper front surface of the main body 24. A through hole 38a is formed at a required position of the upper front plate 38, and a knob 40 for adjusting the internal temperature setting means arranged on the control board projects to the front side through the through hole 38a. .
Further, the upper front plate 38 is provided with a rectangular window 38b having a predetermined size and opening, and a thermometer 42 is provided on the back side corresponding to the window 38b. Further, a label 44 having a transparent portion 44a capable of visually recognizing the display surface of the thermometer 42 is attached to the front surface corresponding to the window 38b of the upper front plate 38, and is transparent in a state where the front panel 18 is closed. The temperature inside the refrigerator can be confirmed from the front side of the refrigerator through the window 22. Further, the lower front plate 48 is bent and hangs down at the open end of the bent portion 46 that is bent at a lower end edge of the upper front plate 38 toward the back side by a predetermined length. The lower part of the front of the is closed. The lower front plate 4
8 is formed with an opening 48a which allows a breaker (not shown) arranged on the back side thereof to project to the front side of the switch 50.

[0005]

In the above refrigerator, the metal top plate 11 provided on the upper surface of the main body 10 also serves as a cooking table. Therefore, when cooking with the top plate 11, Water, oil and other condiments such as seasonings hang down from the front end of the top plate 11 to the surface of the front panel 18, and these contaminants penetrate into the machine room 12 through the gap between the front panel 18 and the refrigerator main body and the electrical equipment box 20. May be dripped into. Further, in order to remove the dirt adhering to the surface of the front panel 18, when water is used for cleaning, this water is used in the machine room 1.
There was a case where the electric equipment box 20 was penetrated into the electric equipment box 20 and got caught in the electric equipment box 20.

When the water directly applied to the upper front plate 38 of the electrical equipment box 20 flows down on the front surface of the front plate 38, the water enters inside through the gap between the through hole 38a for picking and the label 44 and the front surface of the front plate. There is a problem that it may enter and cause malfunctions and further failures of the various electronic components. In addition, the water dropped or splashed on the upper plate 36 of the electrical equipment box 20 flows in four directions because the upper plate 36 is horizontal, and the water flowing toward the upper front plate 38 therein is as described above. Similarly, there is a drawback that it penetrates into the inside through the gap between the through hole 38a or the label 44 and the front surface of the front plate. Further, since the upper front plate 38 is vertical, the water flowing down the front plate 38 is transmitted to the lower front plate 48 through the bent portion 46 and penetrates into the inside through the opening 48a for the switch, so that the breaker fails. Could lead to

Further, as shown in FIG. 7, the size of the cover body 26 is set to be substantially the same as the outer size of the main body 24, so that the water flowing over the cover body 26 reaches the edge portion thereof. At that time, it may enter the gap between the cover body 26 and the main body 24 and enter the inside. As described above, in practice, it is not easy to bring the positioning edge portion 28 and the cover body 26 into close contact with each other without a gap, which requires a high degree of machining accuracy and contributes to an increase in manufacturing cost. is there. Further, since the electrical equipment box 20 is exposed to the heat generated from the refrigeration mechanism 16 and the cold air that is transmitted from the storage chamber side through the drawing wall, the main body 24 and the cover body 26 which constitute the electrical equipment box 20 are long-time. There is a drawback that water is likely to enter the box from the contact part of both due to the distortion.

[0008]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned drawbacks inherent in the above-mentioned prior art, and it has been proposed to solve the above-mentioned drawbacks by preventing water from entering the electrical equipment box. An object of the present invention is to provide an electrical equipment box structure capable of reliably protecting various electronic components.

[0009]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and achieve a desired object, the present invention is an electrical equipment box in which various electronic parts and the like are housed and whose front and upper surfaces are opened. A box-shaped main body, and a cover body that is removably disposed on the box-shaped main body and closes the front surface and the upper surface of the main body,
A cover portion that covers the box-shaped body from the outside is bent and formed at an edge portion of the cover body, and an upper surface of the cover body is set to be inclined downward from a front side to a rear side. Characterize.

[0010]

[Embodiments] Next, the electrical equipment box structure according to the present invention will be described below with reference to preferred embodiments. 6 and 7
The same members as those already described in relation to the above will be designated by the same reference numerals. FIG. 1 is a schematic perspective view showing an electric equipment box according to an embodiment in an exploded manner, showing an electric equipment box 20.
Is composed of a box-shaped main body 24 whose front and upper surfaces are open, and a cover body 26 detachably attached to the main body 24. The main body 24 is formed of side plates 54, 54 and a back plate 56 which are upright on the left and right sides and rear end edges of a rectangular bottom plate 52, and the back plate 56 has an extension extending above the side plates 54, 54. The portion 58 is integrally formed. Then, two screw holes 58a, 58a into which screws 60 for fixing the cover body 26 are screwed are formed in the extending portion 58 at predetermined intervals in the width direction. Further, a rising portion 62 rising at a predetermined height is formed on the front edge of the bottom plate 52, and a screw hole 62a into which the screw 60 is screwed is also formed in the center of the rising portion 62 in the width direction. In addition, a pair of mounting plates 6 formed in a plane L shape are provided at the rear portions on both sides of the main body 24 in the width direction.
4 and 64 are arranged so as to face each other, and the electrical equipment box 20 can be mounted in the machine room of the refrigerator via the mounting plates 64 and 64 (see FIG. 3).

As shown in FIG. 1, the cover body 26 has an upper front plate 38 which is bent at a front end edge of a rectangular upper plate 36 and hangs down, and abuts on the rear end edge at a required height. The portion 66 is bent upward. The contact edge portion 66 has U-shaped grooves 66a, 66 at positions corresponding to the screw holes 58a, 58a of the extending portion 58 formed on the back plate 56 of the main body 24.
a is formed, and the contact edge portion 66 is brought into contact with the extension portion 58, the screw 6 is inserted into the screw hole 58a through each U-shaped groove 66a.
By screwing 0, both are closely fixed. Then, in this state, the upper plate 36 is inclined downward from the front side to the rear side as shown in FIG. 2 so that the water dropped or splashed on the upper plate 36 flows toward the rear side. . Further, the upper front plate 38 is inclined forward as it goes downward, and is configured so that draining can be reliably performed at the lower end edge thereof.

A control board 68 is provided on the back side of the upper front plate 38, and a push button 70 provided on the board 68 for varying the internal temperature and the operating condition is provided on the upper front plate 38. It is configured to be exposed on the front surface through a hole (not shown). Further, the upper front plate 38 has an opening at a position corresponding to the display surface 72 of the digital temperature indicator provided on the substrate 68.
(Not shown) is provided. And this upper front plate 38
A label 74 is attached to the entire front surface of the. The label 74 has an instruction portion 74 a pointing to the push button 70 at a position corresponding to the push button 70.
0 can be operated by pushing the indicator 74a from the outside (front side). Further, a transparent portion 74b is formed at a position corresponding to the display surface 72 of the label 74,
Is configured to be visible from the front side of the cover body 26. Alternatively, the entire label may be transparent so that the push button 70 can be seen through without displaying the instruction portion 74a.

At the lower end edge of the upper front plate 38, as shown in FIG. 2, a bent portion 46 bent toward the back side extends for a predetermined length, and a lower front portion is formed at the open end of the bent portion 46. The plate 48 is bent and hangs down. The lower front plate 48 is formed with an opening 48a that allows a breaker (not shown) disposed on the back side thereof to project to the front side of the switch 50. At the lower end of the lower front plate 48, the rising portion 6 of the main body 24 is provided.
The inverted U-shaped groove 32 corresponding to the second screw hole 62a is formed,
By screwing the screw 60 into the screw hole 62a through the inverted U-shaped groove 32, the lower front plate 48 is fixed to the front surface of the rising portion 62 in a close contact state.

At the left and right edges of the upper plate 36 and the upper front plate 38 of the cover body 26, side plates 54 of the main body 24,
Cover portions 76, 76 are formed to cover 54 from the outside. Further, the left and right edges of the lower front plate 48 are also provided with covering portions 78, 78 for covering the side plates 54, 54 of the main body 24 from the outside. That is, the covering portions 76, 7 of the cover body 26
By exposing 8 to the outside of the side plates 54, 54 in the main body 24, it is possible to reliably prevent the water splashed on the cover body 26 from entering the box body from the respective edge portions.

Next, a schematic structure of the refrigerator in which the electric equipment box 20 is arranged will be described. Inside the horizontally long box-shaped main body 10 in the refrigerator shown in FIG. 3, a storage room for cooling and storing foodstuffs and a machine room 12 adjacent to the storage room with a partition wall are defined. Has been done. This machine room 12
Is configured by attaching a front panel 82, a side panel 84, a rear panel 86, and a ceiling panel 88 to a rectangular frame body 80. The ceiling panel 88 is the main body 1
It extends over the entire length of 0 and doubles as a cooking table. Further, a cooling box 90 communicating with the storage chamber is arranged above the inside of the machine room 12, and inside the cooling box 90, as shown in FIG. 4, a cooler 91 functioning to cool the storage chamber. An internal fan 92 is stored. Further, below the inside of the machine room 12, a condenser 14 and a cooling fan 9 which constitute a refrigerating mechanism 16 for cooling the cooler 91.
3 and the compressor 94 are arranged in order from the front side of the machine room 12. Then, in front of the cooling box 90, the condenser 14
The electric component box 20 having the above-described structure is provided above the cover body 26.
The upper front plate 38 is arranged with the mounting plates 64, 64 in a state in which the upper front plate 38 is oriented toward the front panel 82.

A front panel 82 arranged in front of the machine room 12 is constructed so as to be openable and closable via a hinge (not shown), and a position corresponding to the front surface of the condenser 14 in the front panel 82. As shown in FIG. 3, a plurality of suction ports 82a for the outside air are formed in this. A plurality of discharge ports 84a and 86a are formed in the side panel 84 that covers the side surface of the machine chamber 12 and the back panel 86 that covers the back surface. That is, the air sucked from the suction port 82a of the front panel 82 by the rotation of the cooling fan 93 comes into contact with the condenser 14 to perform cooling by heat exchange, and then becomes warm air to become the exhaust ports 84a, It is discharged to the outside via 86a.

On the front panel 82, a transparent see-through window 82b is provided at a position corresponding to the upper front plate 38 of the electrical equipment box 20 arranged in the machine room 12, and the transparent portion 74b of the label 74 is provided through the see-through window 82b. The internal temperature (display surface 72) can be visually confirmed via the. Further, a plurality of outlets 82 are provided at a position facing the upper part of the transparent window 82b in the front panel 82.
c is provided and functions to discharge a part of the warm air after heat exchange with the condenser 14 to the outside. As shown in FIG. 5, the discharge port 82c is formed at a position facing above the upper plate 36 of the electrical equipment box 20.
The water that has entered the machine room 12 from the
Is set to take.

[0018]

Next, the operation of the electrical equipment box structure according to the embodiment will be described. In the refrigerator provided with the electrical equipment box 20 shown in FIG. 1, when cooking on the ceiling panel 88, sewage such as water, oil, and seasonings dripping from the front end of the ceiling panel 88 is generated between the front panel 88 and the refrigerator body. In some cases, the water may enter the machine room 12 through the gap or the discharge port 82c and drip into the electrical equipment box 20. Further, in order to remove the dirt adhering to the surface of the front panel 88, when water is used for cleaning, this water may infiltrate into the machine room 12 through the discharge port 82c and may hit the electrical equipment box 20. (See Figure 5).

In this case, the discharge port 82c of the front panel 88 is located above the upper plate 36 of the cover body 26 in the electrical equipment box 20 as shown in FIG. Most of the water and the like that have entered the chamber 12 will be splashed on the upper plate 36. Since the upper plate 36 is inclined downward from the front side to the rear side, the water splashed on the upper plate 36 flows to the rear side and does not flow to the upper front plate 38 side. That is, since water does not flow on the front surface of the upper front plate 38 on which the push button 70 and the display surface 72 are arranged, it is possible to prevent water from entering the box and causing various electronic parts to malfunction or even malfunction. You can Moreover, since the label 74 is affixed to the entire front surface of the upper front plate 38, the upper front plate 3
Even if the water from the discharge port 82c directly splashes on the front surface of 8, the intrusion of water into the box can be reliably prevented. The water that has reached the lower edge of the upper front plate 38 is
Since 8 is inclined forward, draining is done at the lower edge,
The breaker does not flow to the lower front plate 48 along the bent portion 46, so that the breaker can be prevented from malfunctioning. Further, by tilting the upper front plate 38 forward, there is an advantage that a worker can easily visually recognize the display surface 72 of the front plate 38 from above the front side of the refrigerator.

The water flowing to the rear side of the upper plate 36 of the cover body 26 is divided into right and left at the contact edge portion 66, and then flows down the covering portions 76, 76 from the left and right edges. The covering portions 76, 76 are the side plates 54, 5 of the main body 24.
Since it faces the outside of 4, the water that has flowed down the covering portions 76, 76 can be transmitted to the outside of the side plates 54, 54 and completely prevent the water from entering the inside of the box body. Since the covering portions 78, 78 formed on the left and right edges of the lower front plate 48 of the cover body 26 are also located outside the side plates 54, 54, the water flowing down from the covering portion 76 to the covering portion 78 will flow down. Does not enter the box. That is, the various electronic components housed in the electrical equipment box 20 are completely isolated and protected from water, and can prevent a failure from occurring.

Although the illustrated embodiment has been described with reference to an electric equipment box arranged in a refrigerator, the present application is not limited to this embodiment. For example, an electrical equipment box for storing various electronic components for controlling an ice maker and other kitchen equipment, etc., and if the electrical equipment box is installed under conditions where it is easily exposed to water, it is suitable for all of them. It can be used.

[0022]

As described above, according to the electrical equipment box structure of the present invention, the cover body constituting the electrical equipment box is covered by the covering portion provided on the edge of the cover body from the outside. Since it is arranged, it is possible to reliably prevent the water splashed on the outside of the electrical equipment box from entering the box body. Therefore, it is possible to prevent failures of various electronic components housed inside the electrical equipment box. Further, since the upper surface of the cover body is set to incline downward from the front side to the rear side, it is possible to effectively prevent water from flowing to the front plate side. In addition, since the label is attached to the entire front surface of the front plate of the cover body, it is possible to prevent water from entering the box body from the position where the operation portion and the display portion of the electronic component are arranged. is there.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an exploded electrical equipment box according to an embodiment.

FIG. 2 is a side view showing a partially cutaway view of an electrical equipment box according to an embodiment.

FIG. 3 is a schematic perspective view showing an exploded main part of a refrigerator provided with an electrical equipment box according to an embodiment.

FIG. 4 is a side view showing a part of the refrigerator according to the embodiment with a side panel removed, which is vertically cut.

FIG. 5 is an explanatory diagram showing a state in which water is applied to the electrical equipment box through the outlet of the front panel when cleaning the refrigerator according to the embodiment.

FIG. 6 is a schematic perspective view showing a machine room of a refrigerator according to a conventional technique.

FIG. 7 is a schematic perspective view showing an exploded electrical equipment box according to a conventional technique.

[Explanation of symbols]

24 box-shaped body, 26 cover body, 38 upper front plate, 70
Push button 72 Display surface, 74 Label, 76 Cover part, 78 Cover part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yu Hirosawa, 16th Hoshizaki Electric Co., Ltd., Sakaemachi South Building, Toyoake City, Aichi Prefecture (72) Koji Ueno 16th, 3rd South Building, Sakaemachi, Toyoake City, Aichi Prefecture Hoshizaki Electric Co., Ltd. Within

Claims (2)

[Claims] 1. An electrical equipment box for accommodating various electronic components and the like, comprising: a box-shaped main body (24) having an open front surface and an upper surface; A cover body (26) that closes the front surface and the upper surface of the main body (24), and a cover portion (76) that covers the box-shaped main body (24) from the outside at an edge portion of the cover body (26). , 78) is bent, and the upper surface of the cover body (26) is set to incline downward from the front side to the rear side. 2. The cover body (2) provided with an operation section (70) and a display section (72) of an electronic component housed inside an electrical equipment box.
The electrical box structure according to claim 1, wherein a label (74) is attached to the entire front surface of the front plate (38) of (6).