JPH07294093A - Waste heat structure of refrigerating machine class unit - Google Patents

Abstract

PURPOSE:To execute once an exhaust of a heated air in a control panel by an exhaust fan into a frame encircled by decorative laminated panels, and to execute an exhaust of the exhausted air to an outside section by a waste hear fan with a waste heat from a refrigerating machine class unit. CONSTITUTION:A refrigerating machine class unit such as compressors 11, 21, liquid receivers 12, 22, an accumlator and the like composing a refrigerating cycle, and a control panel 5 for controlling the refrigerating machine class unit are accommodated in material are mounted around this frame 1. An exhaust fan and an exhaust opening 52 executing an exhaust of a heat in an inside of the control panel are formed on a side wail of the control panel 5, and a waste heat fan and a waste heat opening 42 for executing an exhaust of a heated air E from an inside of the control panel 5 and a waste heat H from the refrigerating machine class unit are formed in a ceiling plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerating machine unit waste heat structure for refrigerating and refrigerating equipment, and more particularly to a compressor which constitutes a refrigerating cycle for cooling refrigerating and refrigerating equipment such as a showcase and a refrigerator. Refrigerators in which devices such as a liquid receiver and an accumulator and a control panel for controlling the refrigeration cycle are housed inside a gantry, and a decorative panel that is sound-proofed by a sound insulating material is attached around the gantry. Regarding the waste heat structure of the unit.

[0002]

2. Description of the Related Art Conventionally, when a refrigerator unit is housed in a frame surrounded by a decorative panel or other outer plate, the waste heat from the refrigerator unit is the waste heat provided on the decorative panel or outer plate. It was naturally discharged from the mouth or forcedly discharged to the outside by a fan, etc., but the control panel housed in the same frame had no exhaust port.

[0003]

Therefore, the inside of the control panel is heated to a high temperature by the waste heat from the compressor, the liquid receiver, the accumulator, and the like that constitute the refrigeration cycle, and the internal equipment of the control panel is adversely affected. was there. Therefore, it is conceivable to provide a waste heat outlet outside for the purpose of exhausting the control panel.However, when a waste heat outlet that directly communicates with the outside is provided in the control panel, dust and There is concern about problems such as water intrusion.

The present invention has been made in view of the above circumstances, and an object of the present invention is to discharge warm air in a control panel into a frame surrounded by a decorative panel by an exhaust fan, and to control the control panel. (EN) A waste heat structure of a refrigerating machine unit, in which warm air discharged from the machine and waste heat from a refrigeration cycle component are discharged to the outside by a waste heat fan capable of discharging both. Another object of the present invention is to provide a waste heat of a refrigerator unit in which an exhaust port of a control panel is provided so as not to come into direct contact with the outside so that dust, water or other foreign matter does not enter the control panel. To provide the structure.

[0005]

In order to achieve the above object, the refrigerating machine unit waste heat structure of the refrigerating / refrigerating machine of the present invention has a refrigerating cycle for cooling the refrigerating machine such as a showcase or a refrigerator. The components such as a compressor, a liquid receiver, an accumulator, and a control panel for controlling the refrigeration cycle are housed inside a frame, and a decorative panel that is soundproofed by a sound insulating material is attached around the frame. In the waste heat structure of the refrigerating machine unit, the side wall of the control panel is provided with an exhaust port and an exhaust fan for discharging the heat inside the control panel into the cradle, and at the upper position of the side plate composed of the decorative panel or the top plate. A waste heat port and a waste heat fan for discharging heat from the inside of the control panel and waste heat from devices such as a compressor, a liquid receiver, and an accumulator that constitute the refrigeration cycle are provided. To have.

Further, the present invention provides a low temperature compressor which constitutes a low temperature refrigeration cycle for cooling refrigeration equipment (low temperature equipment) such as a freezing showcase and a freezer, and a refrigeration equipment such as a refrigeration showcase and a refrigerator. A medium-temperature compressor that constitutes a medium-temperature refrigeration cycle for cooling (medium-temperature device) and a medium-temperature compressor are vertically stacked on a pedestal, and a liquid receiving liquid corresponding to each of the low-temperature compressor and the medium-temperature compressor is provided in the pedestal. A refrigerator unit in which equipment around a compressor, such as a container and an accumulator, and a control panel for controlling the refrigeration cycle are arranged, and a decorative panel that is soundproofed by a sound insulating material is attached to the outer periphery of the frame. In the waste heat structure of the control panel, an exhaust port and an exhaust fan for discharging the heat inside the control panel to the inside of the frame are provided on the side wall of the control panel, and the control is performed at the upper position of the side panel made of the decorative panel or the top panel. Compressor constituting the heat with the refrigeration cycle from the inside, the receiver is characterized in that a waste heat outlet and waste heat fan for discharging the waste heat from the equipment accumulator, or the like.

[0007]

[Operation] The temperature inside the control panel has conventionally risen due to the waste heat of the refrigerator unit, but the temperature rise inside the control panel is suppressed by providing an exhaust port for forced ventilation with an exhaust fan. it can. Further, when the exhaust port of the control panel is provided directly to the outside, dust or water may enter from the exhaust port, which may adversely affect the equipment inside the control panel.
In the present invention, the exhaust air is once exhausted into the frame surrounded by the decorative panel, and then the exhausted air is forced by the exhaust heat fan provided on the top plate together with the exhaust heat from the refrigerator unit. Since it is discharged to the outside, dust and water from the outside will not enter the control panel.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail based on an embodiment shown in the drawings. First, FIG. 1 is a front view of a frame in which a compressor, a control panel, etc. are stored, FIG. 2 is a front view in which a decorative panel is attached, FIG. 3 is a side view of the same, FIG. 4 is a plan view of the same, and FIG. Is also a perspective view seen from the back side, FIG. 6 is a perspective view seen from the back side with the decorative panel removed, and piping is omitted. FIG. 7 is an exploded perspective view of the gantry.

First, as shown in FIG. 7, the gantry 1 includes four columns 2, 2, 2 and 2 and two shelves 3 mounted inside the columns 2 at right angles to the columns 2. , 3 and top plate 4
, A control panel 5 having a built-in control unit, a support 6 for mounting the control panel, and decorative panels 7, 7 attached to the outer periphery of the gantry 1 (in FIG. 7, the front, rear and right side decorative panels are omitted. It is composed of and).

Engagement grooves 2a for mounting the shelves 3 at predetermined positions are provided on the four columns 2 at predetermined intervals in the vertical direction. Further, the support column 2 and the shelf plate 3 are provided with bolt holes 2b and 3b through which bolts (not shown) for fixing the support column 2 and the shelf plate 3 are inserted.
The attachment of the shelf board 3 can be changed to an appropriate position according to the size of the compressor or the like to be stored.

The control panel 5 and the support 6 are attached to the support column 2 in an integrated state with bolts or the like, and the top plate 4 is attached to the upper end of the support column 2 directly or via an appropriate bracket. Fixed. Also, the makeup panel 7
Is detachably attached to the column 2 with a bolt or the like, and is soundproofed by a sound insulating material such as polyurethane or glass wool.

On the lower shelf 3 of the gantry 1 assembled as shown in FIG. 1, a medium temperature compressor 11, a medium temperature receiver 12, a medium temperature accumulator 13, a medium temperature refrigerator high and low pressure gauge 14, The medium temperature refrigerator pressure switch 15 has a low temperature compressor 21 and a low temperature liquid receiver 2 on the shelf 3 in the middle stage.
2, a low-temperature refrigerator high / low pressure gauge 23 and a low-temperature refrigerator pressure switch 24 are provided respectively, and the low-temperature and intermediate-temperature compressors 11 and 21 are housed in a vertically stacked state.

A control panel 5 is attached to the upper part of the pedestal 1 in an integrated state with the support 6, and the top plate 4 is attached to the upper surface of the pedestal 1. This top plate 4 has
As shown in detail in FIG. 1, a medium temperature liquid pipe 16 and a medium temperature return pipe 17 are respectively connected to the refrigeration equipment (medium temperature equipment).
And the low temperature liquid pipe 2 connected to the refrigeration equipment (low temperature equipment)
5, through holes 41, 41 for inserting the low temperature return pipe 26 are provided, and these pipes are connected to a predetermined device through the back surface of the support 6. Further, the top plate 4 is provided with a waste heat port 42 at a position where it is not blocked by the upper surface of the control panel 5, and a waste heat fan 8 is arranged in the vicinity thereof.
The waste heat H of the refrigeration equipment can be discharged from here.

An exhaust port 5 is provided on the upper side surface of the control panel 5.
2 is provided, and an exhaust fan 9 is disposed in the vicinity thereof, so that the air (warm air E) in the control panel 5 heated by the waste heat H from the refrigerating equipment is exhausted by the exhaust fan 52. Frame 1 for refrigeration equipment enclosed by decorative panel 7
It is designed to be discharged once inside. The discharged warm air E is discharged to the outside through the waste heat port 42 by the waste heat fan 8 together with the waste heat H from the refrigerator (see FIG. 6). Thereby, the temperature rise in the control panel 5 can be suppressed, and the waste heat H in the gantry 1 can be efficiently discharged to the outside. Moreover, since the exhaust port 52 of the control panel 5 is provided so as not to come into direct contact with the outside, dust, water, and other foreign matter will not enter the control panel 5 through the exhaust port 52.

The support 6 of the control panel 5 is provided with a through hole 62 through which the sight glass 61 and the operating portions 18 and 27 of the valves provided in the liquid pipes 16 and 25 are inserted.
The upper shelf 3 is provided with a pipe port 31 for passing a pipe, and the pipe port 31 serves as an exhaust port for sending waste heat from the lower freezer storage chamber to the upper freezer storage chamber. Doubles as

As described above, the decorative panel 7 attached to the outer periphery of the gantry 1 accommodating each device is provided with an appropriate window portion in accordance with its attachment position. That is, as shown in FIG. 2, the decorative panel 7 attached to the lower front surface is provided with a window portion 71 at a portion corresponding to the medium-temperature refrigerator high / low pressure gauge 14, and the decorative panel 7 provided on the intermediate front surface is provided. Is provided with a window portion 72 at a portion corresponding to the low temperature refrigerator high / low pressure gauge 23.

Further, the decorative panel 7 attached to the control panel 5 portion on the upper front is divided into two parts in the left-right direction,
The decorative panel 73 on the control panel 5 side is provided with a window 74 corresponding to the operating section 51 provided on the control panel 5, and the decorative panel 75 on the support 6 side is the operating section 18, for the valve. In order to be able to operate 27, it is hingedly connected to the column 2 so as to be openable and closable.

The decorative panel 7 attached to a portion other than the front surface of the gantry 1 is formed in a plate shape corresponding to each size. For example, as shown in FIG. The number may be two, or, as shown in FIG. 5, three may be upper, middle, and lower. Further, the back surface or the side surface may be covered with one decorative panel.

As described above, the gantry 1 is constituted by the four columns 2 and the plurality of shelves 3, and in the gantry 1 the intermediate temperature compressor 11 and its peripheral equipment, the low temperature compressor 21 and the same are installed. While vertically stacking the peripheral equipment, the control panel 5 is attached to the top of the gantry 1, and the polyurethane,
By installing a decorative panel 7 made of glass wool or the like that has soundproofness and sound insulation, a device that constitutes a low-temperature refrigeration cycle of a refrigerating device (low temperature device) such as a freezer showcase, a freezer, a refrigerating showcase, a refrigerator The refrigerating device (medium temperature device) and the devices forming the medium temperature refrigeration cycle can be integrated into a unit structure including the control units of both devices, and the control panel 5 can control both devices. By incorporating the, the electric wiring to the control unit can be easily performed.

Therefore, the components of the refrigerating cycle for cooling the two refrigerating / refrigerating devices can be installed in the space for one unit, and the soundproof decorative panel 7 is attached to the outer periphery of the gantry 1. Thus, even if the unit is installed in a store, there is no problem in appearance and no noise problem occurs. Further, since the decorative panel 7 is detachably attached, the device can be easily maintained by removing the decorative panel 7. When the decorative panel 7 is installed in a soundproof machine room, the decorative panel 7 can be used. The cost can be reduced by omitting. Furthermore, makeup panel 7
The unit can also be installed outdoors by imparting waterproofness to the top plate 4 and its mounting portion.

Further, by independently controlling both refrigeration cycles by the respective control units provided in the control panel 5, it is possible to prevent both refrigeration cycles from interfering with each other even during defrosting operation, etc. You can drive. Moreover, when installing two devices for low temperature and medium temperature as in the normal case, by providing the control panel 5 on the top of the gantry, the control panel 5 is excellent in operability and visibility. can do.

In addition, by providing the support grooves 2 with the engaging grooves 2a for mounting the shelves at predetermined intervals, the vertical position of the shelves 3 can be easily changed even when the size of the compressor or the like is different. Therefore, the strength can be improved as compared with the case where both are simply bolted.

Further, the control panel 5 is attached to the support column 2 via the support plate 6, and the inner peripheral portion of the support plate 6 is used as a pipe passage, so that the refrigerant pipe can be easily attached, and the control is performed. By fixing the board 5 and the support plate 6 in a box-like integrated manner between the columns 2, the strength of the platform 1 is significantly increased as compared with the case where the platform 1 is formed only by the columns 2 and the shelf plate 3. Can be improved.

Further, as shown in this embodiment, when the liquid pipes 16 and 25 and the return pipes 17 and 26 are provided so as to penetrate the top plate 4, a pipe protecting member is provided above the top plate 4 for protecting the pipes. A cover can be provided, and similarly, when each pipe is provided on the side surface or the back surface, a protective cover can be provided on this portion.

Furthermore, the temperature inside the control panel 5 has conventionally risen due to the waste heat H of the refrigerator unit, but in the present embodiment, the exhaust port 52 for forced ventilation by the exhaust fan 9 is provided. Therefore, the temperature rise in the control panel 5 can be suppressed. Moreover, when the exhaust port 52 of the control panel 5 is provided directly to the outside, dust, water, etc. enter from the exhaust port,
Although there is a risk of adversely affecting the equipment in the control panel, in the present embodiment, the air (warm air E) that has been exhausted from the refrigerator unit is temporarily exhausted into the frame 1 surrounded by the decorative panel 7. Waste heat port 42 provided on the top plate 4 etc. together with the waste heat H
Further, since the waste heat fan 8 is forcibly discharged to the outside, dust, moisture, etc. from the outside do not enter the control panel 5.

Although the waste heat outlet 42 and the waste heat fan 8 are provided in the top plate 4 in this embodiment, they may be provided in the upper part of the decorative panel 7 forming the side plate. The waste heat port 42 may be formed at any position above the decorative panel 7 surrounding the pedestal, for convenience of discharging the warm air H and E to the outside, and may be either the top plate 4 or the side plate 7. Also,
In the present embodiment, the low temperature compressor 21 and the medium temperature compressor 11 are vertically stacked in the frame 1 whose periphery is covered with the soundproof decorative panel 7,
Moreover, the structure in which the devices around the compressor such as the liquid receiver and the accumulator corresponding to each are arranged as a unit has been described. However, the present invention is not limited to this, and is similarly applicable to a waste heat structure of a refrigerator unit having another arrangement structure such as those arranged in parallel or a structure in which a single compressor is arranged.

[0027]

As described above, according to the waste heat structure of the refrigerator unit of the present invention, even if the air in the control panel is warmed to some extent by the waste heat of the refrigerator unit, it can be heated. Since the exhausted air is forcibly ventilated by the exhaust fan, it is possible to suppress the temperature rise in the control panel. Therefore, the devices in the control panel are not adversely affected.

Further, the exhaust port of the control panel is directed to the interior of the decorative panel without directing it to the outside, and the exhaust is temporarily exhausted into the frame surrounded by the decorative panel, and then the waste heat of the refrigerator unit is removed to the top plate or the like. Since a waste heat fan is used to forcibly discharge the waste heat to the outside through the provided heat exhaust port, it is possible to prevent dust and water from entering the control panel and damage the equipment inside the control panel. Absent.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a front view of a pedestal in a state in which a compressor, a control panel and the like are housed.

FIG. 2 is a front view showing a state in which a decorative panel is attached according to the embodiment of the present invention.

FIG. 3 is a side view of the same.

FIG. 4 is a plan view of the same.

FIG. 5 is a perspective view of the same as seen from the back side.

FIG. 6 is a perspective view of the same with the decorative panel removed, as seen from the back side.

FIG. 7 is an exploded perspective view of a pedestal showing an embodiment of the present invention.

[Explanation of symbols]

 1 Stand 2 Support 2a Engagement groove 2b Bolt hole 3 Shelf plate 3b Bolt hole 4 Top plate 5 Control panel 6 Support 7,73,75 Decorative panel 11 Medium temperature compressor 12 Medium temperature receiver 13 Medium temperature accumulator 14 Medium temperature Refrigerator high / low pressure gauge 15 Medium temperature refrigerator pressure switch 16 Medium temperature liquid pipe 17 Medium temperature return pipe 18 Valve operating part 21 Low temperature compressor 22 Low temperature receiver 23 Low temperature refrigerator High / low pressure gauge 24 Low temperature refrigeration Machine pressure switch 25 Low temperature liquid pipe 26 Low temperature return pipe 27 Valve operation part 41,62 Through hole 42 Waste heat port 51 Operation part 52 Exhaust port 61 Sight glass 71,72,74 Window part 8 Waste heat fan 9 Exhaust fan

Claims (2)

[Claims] 1. A pedestal including equipment such as a compressor, a liquid receiver, and an accumulator that constitutes a refrigeration cycle for cooling freeze-refrigeration equipment such as a showcase and a refrigerator, and a control panel for controlling the refrigeration cycle. In the waste heat structure of a refrigerator unit that is housed inside and has a decorative panel that has been subjected to soundproofing with a sound insulating material around the frame, the heat inside the control panel is discharged to the side wall of the control panel into the frame. An exhaust port and an exhaust fan are provided, and heat from the inside of the control panel and heat from the compressor, liquid receiver, accumulator, etc. that constitute the refrigeration cycle are disposed at the upper position of the side panel made of the decorative panel or the top panel. A waste heat structure for a refrigerator unit, comprising a waste heat outlet for discharging heat and a waste heat fan. 2. A low-temperature compressor that constitutes a low-temperature refrigeration cycle for cooling refrigeration equipment (low-temperature equipment) such as a freezer showcase and a freezer, and refrigeration equipment (medium-temperature equipment) such as a refrigeration showcase and a refrigerator. ) And a compressor for medium temperature which constitutes a medium temperature refrigeration cycle for cooling
A device around the compressor such as a receiver, an accumulator, etc. corresponding to each of the low temperature compressor and the intermediate temperature compressor, and a control panel for controlling the refrigeration cycle are arranged in the frame, and A waste heat structure of a refrigerator unit in which a decorative panel that has been subjected to soundproofing with a sound insulating material is attached to the outer periphery, and an exhaust port and an exhaust for discharging the heat inside the control panel into the frame on the side wall of the control panel. A fan is provided, and heat from the inside of the control panel and waste heat from equipment such as a compressor, a liquid receiver, and an accumulator that constitute the refrigeration cycle are discharged to an upper position of a side plate made of the decorative plate or a top plate. A waste heat structure for a refrigerator unit, which is provided with a waste heat port and a waste heat fan.