JP5420285B2 - Equipment cooling structure and cooling device - Google Patents

Description

  The present invention relates to a cooling structure for an apparatus for air-cooling a heat source mounted in a housing. More specifically, the present invention relates to a cooling structure for a device that can change the position of an air discharge port for discharging heat from the heat source in a cooling device or the like in which a condenser or the like constituting a refrigeration cycle is mounted as a heat source.

  The cooling device is a pump for circulating the coolant between the object to be cooled such as a machine tool and the cooling device, and for cooling the coolant that is warmed and returned by heat exchange with the object to be cooled. It is equipped with a refrigeration cycle. The refrigeration cycle includes a compressor that compresses and circulates a refrigerant, a condenser that functions as a heat exhaust unit that lowers the temperature of the high-temperature and high-pressure refrigerant discharged from the compressor, and a refrigerant and a coolant. And a cooler that cools the coolant by exchanging heat. Such a cooling device is described in Patent Document 1, for example.

JP 2003-329355 A

  In addition, the cooling device is an air suction port, an air discharge port, and a blower fan that generates an air flow for cooling the condenser from the air suction port to the air discharge port through the condenser in order to air-cool the condenser. It has. When the blower fan is driven, the heat of the condenser rides on this air flow and is discharged from the air discharge port.

  Here, if the exhaust heat from the condenser stagnates, the cooling capacity of the cooling device decreases, so the cooling device is installed in a state in which sufficient space for exhaust heat is secured around the air discharge port. However, depending on the installation location, it may be difficult to secure a space for exhaust heat.

  In such a case, for example, the cooling device originally planned to be introduced must be changed to a model in which the air discharge port is formed at a desired position to ensure a space around the air discharge port. Don't be. Alternatively, it is necessary to change the position of the air discharge port by changing the installation direction of the cooling device at the installation location to a direction different from the original schedule, thereby securing a space around the air discharge port. However, if the model or installation direction of the cooling device is changed, there is a problem that the installation cost increases because the piping provided between the object to be cooled must also be changed.

  In view of such a point, the present invention is to propose a cooling structure for a device that can easily change the position of an air discharge port for discharging heat from a heat source mounted in a housing.

In order to solve the above problems, the present invention provides:
A cooling structure for a device having a heat source inside a housing,
An air suction port formed in the housing;
A first air outlet and a second air outlet formed in different parts of the housing;
A wind direction change plate that is detachably attached to the housing and selectively seals one of the first air outlet and the second air outlet;
A blower fan that blows out air sucked from the air suction port to the first air discharge port and the second air discharge port through the heat generation source in the housing; To do.

  According to the present invention, the first air discharge port and the second air discharge port are formed in different parts of the casing, the first air discharge port is opened, and the second air discharge port is sealed with the wind direction change plate. Then, the heat from the heat generation source rides on the airflow generated by the blower fan and is discharged from the first air discharge port. When the second air discharge port is opened and the first air discharge port is blocked by the wind direction changing plate, the heat from the heat generation source rides on the air flow generated by the blower fan and is discharged from the second air discharge port. Therefore, when it is difficult to secure a space for exhaust heat around the first air exhaust port at the installation location when installing the apparatus, the second air exhaust port is blocked by the air direction change plate. If it is configured to exhaust heat from the air outlet, the apparatus can be installed at the installation location. Further, when it is difficult to secure a space for exhaust heat around the second air discharge port at the installation location, the second air discharge port is blocked with a wind direction changing plate and exhausted from the first air discharge port. If comprised in this way, an apparatus can be installed in the said installation place. In other words, since the position of the air exhaust port where heat is exhausted can be changed by changing the mounting position of the wind direction change plate, it is necessary to change the device model and installation direction in order to secure a space for exhaust heat at the installation location. There is no. As a result, it is not necessary to change the equipment connected to the apparatus at the installation location, and the installation cost can be suppressed. Moreover, since the position of the air discharge port suitable for the place can be selected according to the space around the installation place, the heat from the heat source can be discharged outside without stagnation inside the housing.

Further, in the present invention , in order to discharge heat from the heat generation source from the second air discharge port , the wind direction change plate that blocks the first air discharge port allows the air blown out from the blower fan to the second air. It is characterized by guiding to the air outlet .

Furthermore, the present invention includes a first wind direction change plate and a second wind direction change plate as the wind direction change plate, and the first air discharge port is formed by the first wind direction change plate and the second wind direction change plate. a possible blockade, the second air outlet is capable blocked by the second wind direction changing plate, wherein the housing, when blockade of the second air outlet, to hold the first wind direction changing plate It is characterized by having a holding part for placing. In this way, when the opening shapes of the first air discharge port and the second air discharge port are different, the number of plate members that seal each air discharge port can be reduced, and the apparatus can be configured at low cost. Moreover, since the 1st wind direction change board which becomes useless at the time of sealing of a 2nd air exhaust port can be hold | maintained at a housing | casing, the handling of a 1st wind direction change board becomes easy.

  In this case, in order to discharge the heat from the heat generation source from the first air discharge port, the first air direction change plate held by the holding unit allows the air blown from the blower fan to be the first air. It is desirable to guide to the outlet.

  Next, the present invention includes the above-described apparatus cooling structure, and the heat source is a condenser constituting a refrigeration cycle for cooling the coolant supplied to the object to be cooled. It can be a cooling device.

  In the cooling device of the present invention, in order to allow the heat of the condenser to be discharged from the side or the upper side of the casing, the casing is placed between the first and second side surfaces facing each other and the upper ends thereof. The air suction port is formed in the first side surface, the first air discharge port is formed in the second side surface, and the second air The discharge port is preferably formed on the top surface.

  In this case, between the first side surface and the second side surface, the condenser and the blower fan are arranged in this order from the first side surface side, and the air suction side of the blower fan is The air blowing side of the blower fan faces the condenser and faces the first air outlet on the second side face through a predetermined gap, and the second air exhaust formed on the top surface. The outlet can be configured to communicate with the air blowing side of the blower fan through the gap.

  Further, in the present invention, in order to discharge heat from the heat generation source from the first air discharge port, the holding portion is disposed at a position above the first air discharge port in the housing, It is desirable that at least a part of the gap between the gap and the second air discharge port is sealed by the first wind direction changing plate held by the holding portion.

  According to the present invention, the first air discharge port and the second air discharge port are formed in different parts of the casing, the first air discharge port is opened, and the second air discharge port is sealed with the wind direction change plate. Then, the heat from the heat generation source rides on the airflow generated by the blower fan and is discharged from the first air discharge port. When the second air discharge port is opened and the first air discharge port is blocked by the wind direction changing plate, the heat from the heat generation source rides on the air flow generated by the blower fan and is discharged from the second air discharge port. In other words, since the position of the air exhaust port where heat is exhausted can be changed by changing the installation position of the wind direction change plate, it is necessary to change the device model and installation direction in order to secure a space for exhaust heat at the installation location. There is no. As a result, it is not necessary to change the equipment connected to the apparatus at the installation location, and the installation cost can be suppressed.

  In addition, since the position of the air outlet suitable for the location can be selected according to the space around the installation location, when the device is a cooling device including a condenser as a heat source, the heat from the condenser is enclosed. There is no stagnation inside the body. Therefore, the cooling capacity of the cooling device does not decrease.

It is a circuit block diagram of a cooling device. It is the perspective view which looked at the cooling device from diagonally upward. (A) is the schematic internal block diagram which looked at the housing | casing from the front in the state which removed the lower part of the front plate of the cooling device, (b) removed the lower part of one side plate of the cooling device. It is the outline internal block diagram which looked at the housing | casing from the side in the state which stood. It is the perspective view which looked at the cooling device of the state changed so that the heat | fever of a condenser might be discharged | emitted from a 2nd air discharge port from diagonally upward.

  Embodiments of a cooling device to which the present invention is applied will be described below with reference to the drawings.

(Circuit configuration)
FIG. 1 is a circuit configuration diagram of the cooling device. The cooling device 1 of this example supplies a coolant to an object to be cooled such as a machine tool. The cooling device 1 includes a liquid tank 2 for storing a coolant to be circulated between the cooling device 1 and the object to be cooled, and the coolant from the liquid tank 2 to the object to be cooled through the coolant supply port 3. A pressure feed pump 5 for sending out and collecting in the liquid tank 2 through the coolant recovery port 4 and a pipe 6 and a valve 7 for connecting them are mounted. Further, a refrigeration cycle 8 for cooling the coolant sent out toward the object to be cooled is mounted between the pressure feed pump 5 and the coolant supply port 3.

  The refrigeration cycle 8 includes a compressor 9 that compresses and circulates a refrigerant, a condenser 10 that functions as an exhaust heat section that lowers the temperature of the high-temperature and high-pressure refrigerant discharged from the compressor 9, and a condensed refrigerant. And a cooler 12 that cools the coolant by exchanging heat between the refrigerant and the coolant. The condenser 10 is provided with a blower fan 13 for air-cooling the condenser 10.

(overall structure)
FIG. 2 is a perspective view of the cooling device 1 of this example as viewed obliquely from above. As shown in FIG. 2, the cooling device 1 includes a rectangular parallelepiped housing 20. An upper end portion of the front plate 21 of the housing 20 is cut obliquely, and an operation panel 23 is disposed on the inclined portion 22.

  A first air discharge port 25 is provided on one side plate (second side surface) 24 of the housing 20. The first air discharge port 25 is formed in the lower center portion of the side plate 24, and has a rectangular front opening portion 25a that is long in the vertical direction, and the vertical dimension is shorter than the front opening portion 25a. And a rear opening portion 25b having a long width dimension. The upper end edge of the front opening portion 25a and the upper end edge of the rear opening portion 25b are at the same height, and the lower end edge of the front opening portion 25a is located lower than the lower end edge of the rear opening portion 25b. Two side plate front screw holes 26 are respectively formed in the upper edge portion and the lower edge portion of the front opening portion 25a. Two side plate rear screw holes 27 are formed in the upper edge portion and the lower edge portion of the rear opening portion 25b, respectively. A louver 28 that is inclined downward is provided in the first air discharge port 25.

  A coolant recovery port 4 and a coolant supply port 3 are provided on the rear side of the first air discharge port 25 side by side. Pipes for circulating the coolant between the coolant supply port 3 and the coolant recovery port 4 are respectively connected to the object to be cooled. A power cord 29 is drawn from below the coolant recovery port 4 and the coolant supply port 3.

  A rectangular wind direction changing plate (second wind direction changing plate) 31 is attached to the ceiling plate (top surface) 30 of the housing 20, and the rectangular second air formed in the rear portion of the ceiling plate 30. The discharge port 32 is blocked. The wind direction changing plate 31 includes two screwing through holes 31a at the front edge portion and the rear edge portion. In addition, two ceiling plate side screw holes 33 are formed in the front edge portion and the rear edge portion of the second air discharge port 32 in the ceiling plate 30, and the wind direction changing plate 31 passes through the screwing through hole 31 a. The ceiling plate 30 is fixed to the ceiling plate 30 by four bolts 34 screwed into the ceiling plate side screw holes 33. A lath net 35 is stretched at the second air discharge port 32.

  A rectangular air suction port 37 is provided on the other side plate (first side surface) 36 of the housing 20. The air suction port 37 is formed in the lower center portion of the side plate 36 and faces the first air discharge port 25.

  The back plate 38 of the housing 20 is provided with a holding portion 39 that detachably holds a rectangular wind direction changing plate (first wind direction changing plate) 40. The wind direction changing plate 40 includes two screwing through holes 40a at the upper edge portion and the lower edge portion. Four back plate side screw holes 41 are formed in the holding portion 39 at positions corresponding to the four screw fixing through holes 40a of the wind direction changing plate 40, and the wind direction changing plate 40 passes through the screw fixing through holes 40a. Then, it is detachably fixed to the holding portion 39 by four bolts 42 screwed into the screw holes.

(Internal structure)
FIG. 3A is a schematic internal configuration diagram of the housing 20 viewed from the front with the lower portion of the front plate 21 of the cooling device 1 removed. FIG. 3B is a schematic internal configuration diagram of the inside of the housing 20 viewed from the side with the lower portion of the side plate 24 of the cooling device 1 removed.

  As shown in FIG. 3, the condenser 10 is disposed inside the housing 20 so as to cover the air suction port 37 of the side plate 36. The condenser 10 is a fin-and-tube type having a flat rectangular parallelepiped shape. A condenser hood 43 is attached to cover the condenser 10, and the blower fan 13 is attached to the rear end opening of the condenser hood 43.

  The air suction side of the blower fan 13 faces the condenser 10, and the air blowout side of the blower fan 13 faces the first air discharge port 25 of the side plate 24 through the gap A. In the gap A, the compressor 9 and the pressure feed pump 5 are arranged at the front and rear. The compressor 9 is in a position overlapping the front opening portion 25a when the cooling device 1 is viewed from the side.

  At a position near the operation panel 23 above the condenser 10, the liquid tank 2 having a rectangular parallelepiped shape is arranged so as to be bridged from the side plate 24 to the side plate 36. A cooler 12 is disposed in a space B on the rear side of the liquid tank 2. The second air discharge port 32 formed in the ceiling plate 30 communicates with the air blowing side of the blower fan 13 through the space B and the gap A.

(Exhaust heat from condenser)
With reference to FIG. 2, FIG. 3, the exhaust heat from the condenser 10 at the time of operation | movement of the cooling device 1 is demonstrated.

  When the operation panel 23 is operated to operate the cooling device 1, the refrigerant is circulated to the refrigeration cycle 8 by the compressor 9. At the same time, the blower fan 13 is driven to cool the condenser 10 that condenses the high-temperature and high-pressure refrigerant. When the blower fan 13 is driven, the condenser cooling airflow C (1) passing from the air suction port 37 formed in the side plate 36 through the condenser 10 to the first air discharge port 25 formed in the side plate 24 is generated. It is formed. As a result, the heat of the condenser 10 rides on the condenser cooling airflow C (1) and is discharged from the first air discharge port 25.

(Change of air outlet)
Next, in the cooling device 1 of this example, the heat of the condenser 10 can be changed to be discharged from the second air discharge port 32. FIG. 4 is a perspective view of the cooling device 1 in a state in which the heat of the condenser 10 is changed so as to be discharged from the second air discharge port 32 as viewed obliquely from above.

  As shown in FIG. 4, the wind direction changing plate 31 is removed from the ceiling plate 30, and the second air discharge port 32 is in an open state. The wind direction changing plate 31 removed from the second air discharge port 32 is attached to the side plate 24 so as to block the rear opening portion 25b of the first air discharge port 25. More specifically, the wind direction changing plate 31 is fixed to the side plate 24 by four bolts 43 that pass through the screwing through holes 31 a and are screwed into the side plate rear screw holes 27.

  Also, the wind direction changing plate 40 is removed from the holding portion 39 of the back plate 38, and this wind direction changing plate 40 is attached to the side plate 24 so as to block the front opening portion 25a of the first air discharge port 25. Yes. More specifically, the wind direction changing plate 40 is fixed to the side plate 24 by four bolts 44 that pass through the screwing through holes 40 a and are screwed into the side plate front screw holes 26.

  In this state, when the cooling device 1 is operated to drive the blower fan 13, first, the condenser cooling airflow C (from the air suction port 37 through the condenser 10 to the first air discharge port 25 ( 1) is formed.

  Here, the first air discharge port 25 is blocked by the wind direction changing plate 31 and the wind direction changing plate 40. Therefore, the condenser cooling airflow C (1) collides with the wind direction change plate 31 and the wind direction change plate 40 and is guided from the gap A to the space B. As a result, as shown in FIGS. 3 and 4, the condenser cooling airflow C (1) further downstream of the blower fan 13 from the gap A through the space B to the second air discharge port 32. To the condenser cooling airflow C (2). Accordingly, the heat of the condenser 10 rides on the condenser cooling airflows C (1) and C (2) and is discharged from the second air discharge port 32.

(Effects of this embodiment)
As described above, according to this embodiment, when the first air discharge port 25 is opened and the second air discharge port 32 is sealed with the wind direction changing plate 31, the heat from the condenser 10 is discharged from the first air discharge port 25. The Further, when the second air discharge port 32 is opened and the first air discharge port 25 is sealed with the wind direction changing plates 31 and 40, the heat from the condenser 10 is discharged from the second air discharge port 32. Therefore, when the space for exhaust heat cannot be secured in the horizontal direction of the cooling device 1 at the installation location, the first air discharge port 25 is blocked and the heat is dissipated from the second air discharge port 32. If the space for exhaust heat is secured above the cooling device 1, the cooling device 1 can be installed at the installation location. Further, when the ceiling of the installation place is low and a space for exhaust heat cannot be secured above the cooling device 1, the second air exhaust port 32 is blocked and heat is radiated from the first air exhaust port 25. If the space for exhaust heat is secured to the side of the cooling device 1, the cooling device 1 can be installed at the installation location. As a result, even if it is difficult to secure a space for exhaust heat at the installation location, it is not necessary to change the model of the cooling device 1 or the installation direction, so change the piping to the object to be cooled. There is no need to add. Therefore, installation cost can be suppressed.

  Further, in this example, when the first air discharge port 25 is sealed, the wind direction changing plate 31 that has blocked the second air discharge port 32 is used, so the first air discharge port 25 and the first air discharge port 25 2 The number of plate members for sealing the air discharge port 32 can be reduced. Therefore, the cooling device 1 can be configured at a low cost.

  Further, since the holding plate 39 for removably fixing the wind direction changing plate 40 is formed on the back plate 38 of the housing 20, the second air discharge port 32 is sealed with the wind direction changing plate 31. The wind direction changing plate 40 that is sometimes useless can be held in the housing 2. Therefore, handling of the wind direction changing plate 40 is facilitated.

  The first air outlet 25 is provided with a louver 28, and the second air outlet 32 is provided with a net. Therefore, it is possible to reduce foreign matters from entering the housing 20 from the first air outlet 25 and the second air outlet 32. Further, since the side of the first air discharge port 25 having a large opening is used as the louver 28 and the side of the second air discharge port 32 having a small opening is used as a net, a necessary opening area is ensured at any air discharge port. Can do. Therefore, the exhaust heat from the air discharge ports 25 and 32 does not stagnate. Further, the exhaust air can be guided downward by the louver 28 at the first air discharge port 25 including the louver 28. The louver 28 is a blindfold that covers the inside of the housing 20.

(Other embodiments)
In the above example, the second air discharge port 32 is formed in the ceiling plate 30, but in order to be able to change the position of the air discharge port in the horizontal direction, the second air discharge port 32 is used as the front plate 21. Alternatively, it may be formed on the back plate 38. In this case, the holding portion 39 can be formed on the ceiling board 30.

  In the above example, the holding unit 39 is provided on the back plate 38 of the housing 20, but the holding unit may be provided inside the housing 20. In this case, the holding part is provided on the rear side of the liquid tank 2, and at least a part of the space B between the gap A and the second air discharge port 32 is shielded by the wind direction changing plate 40 held by the holding part. It is desirable to configure as described above.

  For example, as the holding portion, a liquid tank side flange extending in parallel with the ceiling plate 30 from the lower end of the liquid tank 2 toward the back plate 38, and extending in parallel with the ceiling plate 30 from the back plate 38 toward the lower end of the liquid tank 2. A back plate side flange is provided, and two screw holes are formed in each of the liquid tank side flange and the back plate side flange. When the wind direction changing plate 40 is held by the holding portion, the wind direction changing plate 40 is bridged between the liquid tank side flange and the back plate side flange, penetrates through the screwing through hole 40a, and the flange side screw. The wind direction changing plate 40 is fixed to the holding portion with four bolts 42 screwed into the holes. In this way, when the heat of the condenser 10 is discharged from the first air discharge port 25, the wind direction changing plate 40 guides the condenser cooling airflow C (1) to the first air discharge port 25. It can reduce that the device cooling airflow C (1) enters the space B side. As a result, the heat from the condenser 10 can be efficiently discharged out of the housing 20.

  Further, in the above example, in order to detachably attach the wind direction changing plate 31 and the wind direction changing plate 40 to the housing 20, four bolts 34, respectively, are installed in the screw holes 26, 27, 33, 41 of each part of the housing. Although fixed using 42, 43, 44, a pin or a snap rivet provided with a locking claw that can be repeatedly inserted and removed may be used. In this case, a tool is not required when changing the mounting positions of the wind direction changing plate 31 and the wind direction changing plate 40, and the work of loosening or fastening the bolt is reduced.

  In the device of the present invention, the first air outlet and the second air outlet are formed in different parts of the housing, and the first air outlet and the second air outlet are selectively blocked by the wind direction change plate. The cooling structure is not limited to the cooling structure of the cooling device. A heat generation source is mounted in the housing, and the heat generation source can be employed as a cooling structure for an apparatus that is air-cooled by a blower fan or the like.

DESCRIPTION OF SYMBOLS 1 Cooling device 2 Liquid tank 3 Coolant supply port 4 Coolant recovery port 5 Pressure feed pump 6 Piping 7 Valve 8 Refrigeration cycle 9 Compressor 10 Condenser 11 Expansion valve 12 Cooler 13 Blower fan 20 Cases 24 and 36 Side plate 25 1 Air outlet 28 Louver 30 Ceiling panel 31 Wind direction change plate (second wind direction change plate)
32 Second air discharge port 35 Lath net 37 Air suction port 38 Back plate 39 Holding portion 40 Wind direction change plate (first wind direction change plate)
A Clearance B Space C (1), C (2) Condenser cooling airflow

Claims (6)

A cooling structure for a device having a heat source inside a housing,
An air suction port formed in the housing;
A first air outlet and a second air outlet formed in different parts of the housing;
A wind direction change plate that is detachably attached to the housing and selectively seals one of the first air outlet and the second air outlet;
A blower fan that blows air sucked from the air suction port to the first air discharge port and the second air discharge port side through the heat generation source in the housing ;
As the wind direction change plate, a first wind direction change plate and a second wind direction change plate are provided,
The first air discharge port can be blocked by the first wind direction change plate and the second wind direction change plate,
The second air discharge port can be blocked by the second wind direction change plate,
The first wind direction change plate and the second wind direction change plate that block the first air discharge port guide air blown from the blower fan to the second air discharge port,
The apparatus has a holding structure for holding the first wind direction changing plate when the second air discharge port is blocked. In the cooling structure of the apparatus of Claim 1,
The apparatus according to claim 1, wherein the first air direction change plate held by the holding unit guides the air blown from the blower fan to the first air discharge port. A cooling structure for an apparatus according to claim 1 or 2 is provided, wherein the heat source is a condenser constituting a refrigeration cycle for cooling a coolant supplied to an object to be cooled. Cooling system. The cooling device according to claim 3, wherein
The housing includes a first side surface and a second side surface facing each other, and a top surface spanned between the upper ends thereof.
The air suction port is formed on the first side surface,
The first air discharge port is formed in the second side surface,
The cooling device according to claim 1, wherein the second air discharge port is formed on the top surface. The cooling device according to claim 4, wherein
Between the first side surface and the second side surface, the condenser and the blower fan are arranged in this order from the first side surface side,
The air suction side of the blower fan faces the condenser, and the air blowout side of the blower fan faces the first air discharge port of the second side face through a predetermined gap,
The cooling device, wherein the second air discharge port formed in the top surface communicates with the air blowing side of the blower fan through the gap. The cooling device according to claim 5, wherein
The holding portion is disposed at a position above the first air discharge port in the housing,
The cooling device, wherein the gap between the gap and the second air outlet is at least partially sealed by the first air direction changing plate held by the holding portion.

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