JP2853759B2 - Waste heat structure of refrigerator units - Google Patents

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 / refrigerating equipment, and more particularly, to a compressor for forming a refrigerating cycle for cooling refrigerating and refrigerating equipment such as a showcase or a refrigerator. Refrigerators in which equipment such as a liquid receiver, an accumulator, and a control panel for controlling the refrigeration cycle are housed in a gantry, and a decorative panel is provided around the gantry, which has been subjected to soundproofing by a sound insulating material. It relates to the waste heat structure of the unit.

[0002]

2. Description of the Related Art Conventionally, when a refrigerator unit is stored in a frame surrounded by a decorative panel or other outer plate, waste heat from the refrigerator unit is generated by the waste heat provided on the decorative panel or the outer plate. Although the air was discharged from the mouth naturally or forcibly to the outside with a fan or the like, the control panel housed in the same stand did not have an exhaust port.

[0003]

Therefore, the inside of the control panel is heated by the waste heat from the compressor, the liquid receiver, the accumulator and the like constituting the refrigeration cycle, and adversely affects the equipment inside the control panel. was there. Therefore, it is conceivable to provide a waste heat port on the outside for the purpose of exhausting the control panel. There is a concern that a defect such as intrusion of moisture may occur.

SUMMARY OF THE INVENTION 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 to a frame surrounded by a decorative panel by an exhaust fan and to control the control panel. It is an object of the present invention to provide a waste heat structure of a refrigerator unit in which warm air discharged from a refrigerator and waste heat from a refrigeration cycle component device are discharged to the outside by a waste heat fan capable of discharging both. Further, another object of the present invention is to provide an exhaust port of a control panel so as not to be in direct contact with the outside, so that dust, moisture and other foreign substances do not enter the control panel. It is to provide a structure.

[0005]

In order to achieve the above object, the present invention provides a refrigerating machine unit waste heat structure for a refrigerating / refrigerating apparatus, which comprises a refrigerating cycle for cooling a refrigerating apparatus such as a showcase or a refrigerator. Devices such as a compressor, a liquid receiver, an accumulator, and a control panel for controlling the refrigeration cycle are housed in a gantry, and a decorative panel subjected to soundproofing by a sound insulating material is mounted around the gantry. In the waste heat structure of the refrigerator unit, an exhaust port and an exhaust fan are provided on the side wall of the control panel to discharge heat inside the control panel into the gantry. 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.

The present invention also relates to a low-temperature compressor constituting a low-temperature refrigeration cycle for cooling refrigeration equipment (low-temperature equipment) such as a refrigeration showcase and a freezer, and refrigeration equipment such as a refrigeration showcase and a refrigerator. (Medium-temperature equipment) A medium-temperature compressor constituting a medium-temperature refrigeration cycle for cooling a medium-temperature compressor is vertically stacked on a mount, and a liquid receiver corresponding to each of the low-temperature compressor and the medium-temperature compressor is provided in the mount. Refrigerator unit in which equipment around a compressor such as a vessel, an accumulator, and the like, and a control panel for controlling the refrigeration cycle are arranged, and a decorative panel subjected to soundproofing by a sound insulating material is attached to an outer periphery of the gantry. An exhaust port and an exhaust fan for discharging heat inside the control panel into the gantry on a side wall of the control panel, and the control panel is provided at an upper position of a side panel made of the decorative panel or a top plate. 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] Conventionally, the temperature inside the control panel has risen due to the waste heat of the refrigerator unit. However, the exhaust port for forced ventilation by the exhaust fan has been provided to suppress the temperature rise inside the control panel. it can. Also, if the exhaust port of the control panel is provided directly to the outside, dust and moisture may enter from the exhaust port, and may adversely affect devices in the control panel.
In the present invention, the exhausted air is once exhausted into a frame surrounded by a decorative panel, and then the exhausted air is forcibly forced by a waste heat fan from a waste heat port provided on a top plate or the like together with waste heat from a refrigerator unit. Since dust is discharged to the outside, dust and moisture from the outside do not enter the control panel.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail based on one embodiment shown in the drawings. First, FIG. 1 is a front view of a gantry in which a compressor, a control panel and the like are housed, FIG. 2 is a front view in which a decorative panel is mounted, FIG. 3 is a side view, FIG. FIG. 6 is a perspective view from the back side, FIG. 6 is a perspective view from the back side with the decorative panel removed, and piping is omitted, and FIG. 7 is an exploded perspective view of the gantry.

First, as shown in FIG. 7, a gantry 1 includes four columns 2, 2, 2, 2 and two shelf plates 3 mounted inside the columns 2 at right angles to the columns 2. , 3 and top plate 4
And a control panel 5 having a built-in control section, 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, front, rear and right side decorative panels are omitted). ).

The four pillars 2 are provided with engaging grooves 2a for mounting the shelf plate 3 at predetermined positions at predetermined intervals in the vertical direction. Further, the support 2 and the shelf 3 are provided with bolt holes 2b, 3b through which bolts (not shown) for fixing the support 2 and the shelf 3 are inserted.
The mounting of the shelf plate 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 column 2 in a state of being integrated with bolts or the like, and the top plate 4 is attached to the upper end of the column 2 directly or via an appropriate bracket. Fixed. In addition, the decorative panel 7
Is detachably attached to the column 2 by bolts or the like, and is soundproofed by a sound insulating material such as polyurethane or glass wool.

As shown in FIG. 1, a shelf plate 3 in a lower portion of the gantry 1 assembled as shown in FIG. 1 has a medium-temperature compressor 11, a medium-temperature receiver 12, a medium-temperature accumulator 13, a medium-temperature refrigerator high-low pressure gauge 14, The middle-temperature refrigerator pressure switch 15 is provided with a low-temperature compressor 21 and a low-temperature liquid receiver 2 on the middle shelf 3.
2. A low-temperature refrigerator high-low pressure gauge 23 and a low-temperature refrigerator pressure switch 24 are provided, and the low-temperature and medium-temperature compressors 11 and 21 are stored in a vertically stacked state.

A control panel 5 is attached to the upper part of the gantry 1 in a state of being integrated with the support 6, and the top plate 4 is attached to an upper surface of the gantry 1. As shown in FIG.
As will be described in detail below, a medium temperature liquid pipe 16 and a medium temperature return pipe 17 connected to the refrigeration equipment (medium temperature equipment), respectively.
And low temperature liquid pipe 2 connected to refrigeration equipment (low temperature equipment)
5, there are provided through holes 41, 41 through which the low temperature return pipe 26 is inserted, and these pipes are connected to a predetermined device through the back surface of the support 6. The top plate 4 is provided with a waste heat port 42 at a position not blocked by the upper surface of the control panel 5, and a waste heat fan 8 is disposed in the vicinity thereof.
Waste heat H of the refrigeration equipment can be discharged to the outside from here.

An exhaust port 5 is provided on the upper side of the control panel 5.
2, an exhaust fan 9 is disposed in the vicinity thereof, and air (warm air E) in the control panel 5 heated by the waste heat H from the refrigeration equipment is exhausted by the exhaust fan 9 to the exhaust port 52. Of refrigeration equipment 1 surrounded by decorative panel 7
It is made to discharge into the inside once. 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 refrigerators (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 directly contact the outside, dust, moisture, and other foreign substances do not enter the control panel 5 from 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 operation portions 18 and 27 of the valves provided in the liquid tubes 16 and 25 are inserted.
The upper shelf plate 3 is provided with a piping opening 31 for passing piping, and the piping opening 31 functions as an outlet for sending waste heat from the lower refrigeration equipment storage room to the upper refrigeration equipment storage room. Also serves as.

The decorative panel 7 attached to the outer periphery of the gantry 1 in which the various devices are housed is provided with an appropriate window according to the attachment position. That is, as shown in FIG. 2, the decorative panel 7 attached to the lower front is provided with a window 71 at a portion corresponding to the medium-temperature refrigerator high-low pressure gauge 14, and the decorative panel 7 provided at the middle front is provided. Is provided with a window 72 at a portion corresponding to the low-temperature refrigerator high-low pressure gauge 23.

The decorative panel 7 attached to the control panel 5 in 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 portion 74 corresponding to the operation section 51 provided on the control panel 5, and the decorative panel 75 on the support 6 side is provided with the operating section 18 of the valve, 27 is hingedly connected to the column 2 so that it can be opened and closed.

The decorative panel 7 attached to a portion other than the front 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 three as shown in FIG. Further, the back or side surface may be covered with a single decorative panel.

As described above, the gantry 1 is constituted by the four columns 2 and the plurality of shelves 3, and the medium-temperature compressor 11 and its peripheral devices, the low-temperature compressor 21 and its Peripheral devices are stacked vertically, a control panel 5 is mounted on the top of the gantry 1, and polyurethane,
By installing a soundproof and sound-insulating decorative panel 7 made of glass wool or the like, a device constituting a low-temperature refrigerating cycle of a refrigerating device (low-temperature device) such as a freezing showcase or a freezer, a refrigerated showcase, a refrigerator, etc. Refrigeration equipment (medium temperature equipment) and the equipment constituting the medium temperature refrigeration cycle can be integrated into a unit structure including the control parts of both equipments. , The electric wiring to the control unit can be easily performed.

Therefore, the components of the refrigeration cycle for cooling two refrigeration / refrigeration devices can be installed in the space of one device, and the soundproof decorative panel 7 is attached to the outer periphery of the gantry 1. Accordingly, 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 mounted, maintenance of the equipment can be easily performed by removing the decorative panel 7, and when the decorative panel 7 is installed in a soundproofing machine room, the decorative panel 7 may be installed. Can be omitted to reduce costs. Furthermore, the decorative panel 7
The unit can be installed outdoors by imparting waterproofness to the ceiling plate 4 and its mounting portion.

Further, by independently controlling both refrigeration cycles by respective control units provided on the control panel 5, it is possible to prevent both refrigeration cycles from interfering with each other even when performing a defrosting operation, etc. Driving can be performed. In addition, when two devices for low temperature and medium temperature are installed as in a normal case, by providing the control panel 5 at the top of the gantry, the control panel 5 having excellent operability and visibility is provided. can do.

In addition, by providing the engaging grooves 2a for mounting the shelves at predetermined intervals on the columns 2, 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 together.

Further, the control panel 5 is mounted on the 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 mounted. By fixing the board 5 and the support plate 6 between the columns 2 in a state of being integrated in a box shape, the strength of the frame 1 is greatly increased as compared with the case where the frame 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 portion is provided above the top plate 4. A cover can be provided. Similarly, when each pipe is provided on the side surface or the back surface, a protective cover can be provided on this portion.

Further, the temperature inside the control panel 5 has conventionally been raised by the waste heat H of the refrigerator unit, but in the present embodiment, an exhaust port 52 for forced ventilation by the exhaust fan 9 is provided. Thereby, the temperature rise in the control panel 5 can be suppressed. In addition, when the exhaust port 52 of the control panel 5 is provided directly to the outside, dust, moisture, and the like enter from the exhaust port,
Although there is a possibility that devices in the control panel may be adversely affected, in this embodiment, the air is once exhausted into the gantry 1 surrounded by the decorative panel 7, and then the exhausted air (warm air E) from the refrigerating machine unit. Waste heat port 42 provided on top plate 4 etc. together with waste heat H
Since the waste heat fan 8 is forcibly discharged to the outside, dust and moisture from the outside do not enter the control panel 5.

In this embodiment, an example is shown in which the waste heat port 42 and the waste heat fan 8 are provided on the top plate 4, but they may be provided above the decorative panel 7 constituting the side plate. The formation position of the waste heat port 42 may be any position above the decorative panel 7 surrounding the gantry for convenience of discharging the warmed air H, E to the outside, and may be either the top plate 4 or the side plate 7. Also,
In this embodiment, the low-temperature compressor 21 and the medium-temperature compressor 11 are vertically stacked in the gantry 1 whose periphery is covered with the soundproofing decorative panel 7.
In addition, the description has been made of a structure in which devices around the compressor such as a liquid receiver and an accumulator corresponding to each are arranged as a unit. However, the present invention is a device in which a low-temperature compressor and a medium-temperature compressor are stacked in two stages. The present invention is not limited to this, and can be similarly applied to a waste heat structure of a refrigerator unit having another arrangement structure such as a structure in which the compressors are 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 slightly heated by the waste heat of the refrigerator unit, it is still heated. Since the exhausted air is forcibly ventilated by the exhaust fan, the rise in temperature in the control panel can be suppressed. Therefore, there is no adverse effect on devices in the control panel.

Also, the exhaust port of the control panel is directed to the interior of the decorative panel without directing to the outside, and is evacuated once into a frame surrounded by the decorative panel. Since the waste heat fan is forcibly discharged to the outside from the waste heat port provided, dust and moisture from the outside may enter the control panel and damage the equipment inside the control panel. Absent.

[Brief description of the drawings]

FIG. 1, showing an embodiment of the present invention, is a front view of a gantry in which a compressor, a control panel, and the like are stored.

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

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 seen from the back side.

FIG. 6 is a perspective view of the same decorative panel removed from the rear side.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stand 2 Column 2a Engagement groove 2b Bolt hole 3 Shelf 3b Bolt hole 4 Top plate 5 Control panel 6 Support 7,73,75 Makeup 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 8 Waste heat fan 9 Exhaust fan

Claims (2)

(57) [Claims] 1. A refrigeration cycle for cooling refrigerating equipment such as a showcase or a refrigerator, a compressor, a receiver, an accumulator, etc., and a control panel for controlling the refrigeration cycle. In a waste heat structure of a refrigerator unit which is housed inside and has a decorative panel subjected to soundproofing treatment with a sound insulating material around the pedestal, heat inside the control panel is discharged into the pedestal on a side wall of the control panel. An exhaust port and an exhaust fan are provided, and the heat from the inside of the control panel and the waste from equipment such as a compressor, a liquid receiver, an accumulator and the like constituting the refrigeration cycle are provided at an upper position of the side plate composed of the decorative panel or a top plate. A waste heat structure of a refrigerator unit, comprising a waste heat port for discharging heat and a waste heat fan. 2. A low-temperature compressor constituting a low-temperature refrigeration cycle for cooling refrigerating equipment (low-temperature equipment) such as a freezing showcase or a freezer, and a refrigeration equipment (medium-temperature equipment) such as a refrigerated showcase or a refrigerator. ) And a medium-temperature compressor that constitutes a medium-temperature refrigeration cycle for cooling
In the mount, equipment around the compressor such as a liquid receiver and an accumulator corresponding to each of the low-temperature compressor and the medium-temperature compressor and a control panel for controlling the refrigeration cycle are arranged. A waste heat structure of a refrigerator unit in which a decorative panel subjected to soundproofing by a sound insulating material is attached to an outer periphery, wherein an exhaust port and an exhaust for discharging heat inside the control panel into a gantry are provided on side walls of the control panel. A fan is provided to discharge heat from inside the control panel and waste heat from devices such as a compressor, a liquid receiver, and an accumulator that constitute the refrigeration cycle to an upper position of a side plate made of the decorative plate or a top plate. Waste heat structure of a refrigerator unit characterized by providing a waste heat port and a waste heat fan for use.