JP4287950B2 - Water supply unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water supply unit in which an air-cooled pump, a pump control unit for controlling the pump, and the like are housed in a cabinet case.
[0002]
[Prior art]
Conventionally, when storing an air-cooled pump, a pump control unit for controlling the pump, etc. in a cabinet case having an openable / closable door, a gallery is provided on the entire side surface of the cabinet case in consideration of cooling of the pump, Cooling of the pump and the inverter constituting the pump control unit is performed by natural ventilation.
However, when cooling the pump and inverter with natural ventilation, air flow from the inside of the cabinet case to the outside of the cabinet case is unlikely to occur, and the pump and inverter cannot be cooled efficiently. Cooling pump and inverter.
[0003]
[Problems to be solved by the invention]
The conventional water supply unit has a disadvantage that noise is generated by the ventilation fan because the ventilation fan is provided and forced ventilation is performed.
[0004]
The present invention has been made to solve the above-described disadvantages, and can radiate heat by a ventilation flow only by an external fan of the pump and the inverter without forced ventilation by the ventilation fan, and efficiently cool the pump and the inverter. The water supply unit which can be performed is provided.
[0005]
[Means for Solving the Problems]
This invention includes a cabinet case having an openable door, an inverter constituting the pump control unit which is disposed on the upper side within the cabinet casing, wherein is disposed below the inverter, the outer fan fan The air-cooled pump with the motor unit in the middle and the pump unit in the lower side, and an inlet provided at the same height as the inverter or at a position higher than the inverter on the side or door of the cabinet case An outlet having a total area larger than a total area of the inlet, and provided at a position lower than an outside fan of the air-cooled pump on a side surface or door of the cabinet case, and the air-cooled pump, And a pump control unit for controlling the air-cooled pump is housed in the cabinet case.
The outlet in the water supply unit of this invention is provided in the side surface of the said cabinet case, or the lowest part of a door, It is characterized by the above-mentioned.
The outlet in the water supply unit of the present invention is provided on the side surface or door of the cabinet case, and is provided slightly below the outer fan of the pump.
In the water supply unit according to the present invention, the side or door of the cabinet case is provided with another inlet at substantially the same height as the outer fan of the air-cooled pump.
The water supply unit of this invention WHEREIN: The said outflow port is provided in the bottom of the said cabinet case, It is characterized by the above-mentioned .
In the water supply unit of the present invention, the inflow port and the outflow port have a horizontally long shape .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a water supply unit in a state where doors according to the first embodiment of the present invention are removed and arranged side by side.
Note that the gantry is shown in a partially broken state.
[0007]
In FIG. 1, reference numeral 1 denotes a cabinet case, a box-shaped case body 2 having an open front surface, a detachable door 3 covering the front surface of the case body 2, and a stand 5 provided under the case body 2. It consists of
A drain port 2a is provided at the bottom of the case body 2 so as to be positioned under a backflow preventer 12 described later.
[0008]
In addition, on the left and right sides of the door 3, lock mechanisms 4 are provided that allow the door 3 to be attached to and detached from the case main body 2.
Furthermore, the door 3 is provided with a circular inlet 3a at the same height as the inverters 23A and 23B described later or higher than the inverters 23A and 23B, for example, at the top, and lower than the pumps 13A and 13B described later. An outlet 3b having the same shape as the inlet 3a is provided at a position, for example, at the bottom.
In addition, the inflow port 3a and the outflow port 3b are provided on the diagonal line.
[0009]
11 is a water supply pipe, 12 is a backflow preventer disposed in the middle of the water supply pipe 11, 13A and 13B are air-cooled pumps disposed in the water supply pipe 11 downstream of the backflow preventer 12, and this pump 13A and 13B are composed of a pump unit 14, a motor unit 15 that is coaxial with the pump unit 14 and drives the pump unit 14, and an outer fan fan 16 that is coaxial with the motor unit 15 and cools the motor unit 15. In the state where the outer fan fan 16 is on the upper side and the pump part 14 is on the lower side, the case body 2 is disposed at the center in the vertical direction.
[0010]
In addition, after the water which flowed into the inflow end 11a of the water supply piping 11 progressed on the vertical surface to the backflow preventer 12, and the pump part 14 of pump 13A, 13B, it is a back side from the previous vertical surface from the pump part 14 The liquid flows out onto the vertical surface located at, and proceeds on the vertical surface to the discharge end 11b located behind the inflow end 11a.
[0011]
Reference numeral 21 denotes a pump control unit, which includes a control unit 22 and inverters 23A and 23B. The inverters 23A and 23B have an external fan 25 that cools the inverter part 24. The fan 25 is disposed on the upper side of the pumps 13A and 13B in the case body 2 with the fan fan 25 on the lower side.
In addition, a signal line for connecting the control unit 22 and a pressure sensor (not shown), a signal line for connecting the control unit 22 and the inverters 23A and 23B, and a signal line for connecting the inverters 23A and 23B and the pumps 13A and 13B. The illustration is omitted.
Reference numeral 31 denotes a drain pipe.
[0012]
Next, the operation will be described.
First, the control unit 22 of the pump control unit 21, which is not shown, for example if the pump 13A, the pump 13A on the basis of the output of the pressure sensor disposed downstream of the feed water pipe 11 than 13B and / or pump The rotational speed of 13B is determined, and an output corresponding to the rotational speed is output to inverter 23A and / or inverter 23B.
[0013]
Inverter 23A and / or inverter 23B output of the control unit 22 Ru is supplied, it controls the corresponding pump 13A and / or the pump 13B to the rotational speed.
Therefore, when the faucet is opened and water is used, water can be supplied to the water use point.
[0014]
When the pumps 13A and 13B and the inverters 23A and 23B are operated, the motor unit 15 and the inverter part 24 generate heat. However, when the outer fan fans 16 and 25 are operated, the motor unit 15 and the inverter part 24 are cooled.
Thus, when cooling the motor part 15 and the inverter part 24 with the external fan fans 16 and 25, the inflow port 3a is provided in the door 3 at the same height as the inverters 23A and 23B or higher than the inverters 23A and 23B. At the same time, since the outlet 3b is provided at a position lower than the pumps 13A and 13B, a forced ventilation flow from the inlet 3a toward the outlet 3b by the outer fan fans 16 and 25 is generated in the case body 2. .
[0015]
As described above, according to the first embodiment of the present invention, the door 3 is provided at the same height as the inverters 23A and 23B or at a position higher than the inverters 23A and 23B. Since the outlet 3b is provided at a position lower than the fans 16 and 25 , a forced ventilation flow is generated in the case body 2 from the inlet 3a to the outlet 3b by the outer fan fans 16 and 25.
Therefore, heat can be dissipated by the ventilation flow only by the external fan fans 16 and 25 of the pumps 13A and 13B and the inverters 23A and 23B without forced ventilation by the ventilation fan, and the pumps 13A and 13B and the inverters 23A and 23B can be efficiently cooled. Can do.
[0016]
And since the ventilation fan for forced ventilation is not provided, the noise by a ventilation fan does not generate | occur | produce.
Furthermore, since the outlet 3b is provided at the lowermost part of the door 3, heat does not accumulate in the bottom portion of the cabinet case 1.
Moreover, since the inflow port 3a and the outflow port 3b were provided in the door 3, it can be set as an embedded type water supply unit.
And since the inside of the cabinet case 1 can be efficiently cooled and heat does not accumulate, it is not necessary to consider heat resistance for each member when performing soundproofing treatment, sound insulation treatment, or heat insulation treatment, Each treatment can be performed at low cost.
[0017]
FIG. 2 is a front view of a door of a water supply unit according to the second embodiment of the present invention, and the same parts as those in FIG.
In FIG. 2, reference numeral 3 c denotes an inflow port, which is provided at the same height as the inverters 23 A and 23 B of the door 3 or higher than the inverters 23 A and 23 B, for example, at the top of the door 3 and slightly more than the width of the door 3. It is a narrow horizontally long rectangle.
Reference numeral 3d denotes an outflow port, which is provided at a position lower than the pumps 13A and 13B of the door 3, for example, at the lowermost portion of the door 3, in the same shape as the inflow port 3c.
Reference numeral 3e denotes an inlet, which is provided at the same height as the outer fan 16 of the door 3 with the same width as the inlet 3c and double the area of the inlet 3c.
[0018]
In the second embodiment, the same effect as that of the first embodiment described above can be obtained.
And since the inflow port 3c, 3e and the outflow port 3d were made into the oblong rectangle, since the flow of air can be formed in the whole in the cabinet case 1, it can radiate and cool more efficiently.
Furthermore, since the inlet 3e is provided at a position substantially the same height as the outer fan fan 16 of the door 3, since the outside air can be taken in from the inlet 3e and the motor unit 15 can be directly cooled, the motor unit 15 is more efficiently operated. Can be cooled.
[0019]
FIG. 3 is a front view of a door of a water supply unit according to a third embodiment of the present invention, and the same or corresponding parts as those in FIG. 1 or FIG.
In FIG. 3, 3f shows an outflow port, the position of the door 3 slightly lower than the external fan 16 of the pumps 13A and 13B, for example, the lower height including the lower part of the motor unit 15, preferably the pump unit 14 is a rectangle having the same width as the inflow port 3c and is three times as large as the inflow port 3c.
[0020]
In the third embodiment, the same effect as that of the first or second embodiment described above can be obtained.
Since the outflow port 3f is provided at a position slightly below the outer fan 16 of the pumps 13A and 13B of the door 3, the air that has cooled the motor unit 15 can be discharged more quickly and directly. The pumps 13A and 13B can be cooled more efficiently than in the embodiment.
Furthermore, since the total area of the outflow port 3f is made larger than the total area of the inflow port 3c, air can be discharged efficiently, so that heat can be radiated and cooled more efficiently than in the second embodiment.
[0021]
FIG. 4 is a front view of the door of the water supply unit according to the fourth embodiment of the present invention, and the same parts as those in FIGS.
In FIG. 4, 3g shows an inflow port and is provided in the same height as the inflow port 3c in the position of the door 3 of the height same as the outer fan fan 16. As shown in FIG.
[0022]
In the fourth embodiment, the same effect as that of the first, second, or third embodiment described above can be obtained.
[0023]
FIG. 5 is a front view of the door of the water supply unit according to the fifth embodiment of the present invention, and the same parts as those in FIGS.
[0024]
In the fifth embodiment, the same effects as those of the first, second, third, or fourth embodiment described above can be obtained.
[0025]
The cooling effect in each embodiment described above is more in the second embodiment than in the first embodiment, more in the third embodiment than in the second embodiment, and more than in the third embodiment. There is a fourth embodiment, and there is a fifth embodiment more than the fourth embodiment.
In the fifth embodiment, the cooling effect can be further improved by providing the inlet 3g or the inlet 3e.
[0026]
Further, the inverters 23A and 23B are disposed with the inverter portion 24 on the upper side and the outer fan fan 25 on the lower side. However, the inverter portion 24 and the outer fan fan 25 may be disposed in the left-right direction. The cooling effect can be improved by setting the outer fan 25 to the upper side and the inverter portion 24 to the lower side.
Furthermore, as the embedded type, the door 3 is provided with the inlets 3a, 3c, 3e, 3g, and the outlets 3b, 3d, 3f are provided. However, the door 3 is provided on the side surface of the cabinet case 1, that is, the side surface of the case body 2. When it is provided on the side surface of the main body 2 and the door 3 or when the case main body 2 is installed away from the wall, it is provided on the back surface (back surface) of the case main body 2, that is, a portion excluding the top plate and bottom of the cabinet case 1. The same effect can be obtained even if it is provided.
[0027]
Furthermore, although the outflow ports 3b and 3d are provided in the door 3 in the first, second or fifth embodiment, an outflow port is provided in the bottom of the case body 2 in place of the outflow ports 3b and 3d. However, if an outflow port is provided at the bottom of the case body 2, it is possible to further eliminate heat from being trapped in the bottom portion of the cabinet case 1.
When the outlet is provided at the bottom of the case body 2, as in the above-described embodiment, a simple hole or a horizontally long hole is provided at the bottom of the case body 2, or the bottom of the case body 2 is made of expanded metal or mesh. Thus, an outlet may be provided to prevent the entry of dust, insects, and the like.
[0028]
The inlets 3a, 3c, 3e, 3g and the outlets 3b, 3d, 3f may also be formed of expanded metal or mesh.
And it is good also as a structure which prevents a rainwater from entering by providing a trough corresponding to inflow port 3a, 3c, 3e, 3g and outflow port 3b, 3d, 3f.
Furthermore, although the total area of the outlet has been described as being greater than or equal to the total area of the inlet, the total area of the outlet may be smaller than the total area of the inlet, but the total area of the outlet is equal to or greater than the total area of the inlet. That is, the total area of the outlet is preferably equal to or larger than the total area of the inlet.
[0029]
【The invention's effect】
As described above, according to the first aspect of the present invention, the side wall or the door of the cabinet case is provided with the inlet at the same height as the inverter or at a position higher than the inverter, and more than the fan fan of the pump. is provided with the low position to be positioned in the outlet, forced ventilation flow is generated flowing from the inlet by the outer fan fan pump into the cabinet casing to the outlet.
Therefore, without forced ventilation in ventilation fan, it is possible to heat dissipation only by the ventilation flow outside fan fan pump, the pump and inverter can be efficiently cooled.
And since the ventilation fan for forced ventilation is not provided, the noise by a ventilation fan does not generate | occur | produce.
[0030]
Next, according to the second aspect of the present invention, the outflow port is provided on the side surface of the cabinet case or the lowermost part of the door, so that heat does not accumulate in the bottom portion of the cabinet case.
According to the third aspect of the present invention, since the outlet is located on the side of the cabinet case or the door, slightly below the fan fan of the pump, the air that has cooled the motor part of the pump is more Since it can be discharged quickly and directly, the pump can be cooled more efficiently.
[0031]
According to the invention of claim 4, since another inlet is provided at a position on the side surface of the cabinet case or the door at substantially the same height as the external fan of the pump, outside air is taken in from the inlet. Since the motor part of the pump can be directly cooled, the motor part can be cooled more efficiently.
Furthermore, according to the invention of claim 5, since the outflow port is also provided at the bottom of the cabinet case, it is possible to further eliminate the heat trapped in the bottom portion of the cabinet case.
[0032]
According to the sixth aspect of the present invention, since the inflow port and the outflow port are formed in a horizontally long shape, an air flow can be formed in the entire cabinet case, so that cooling can be performed more efficiently.
Furthermore, according to the seventh aspect of the present invention, since the total area of the outlet is equal to or larger than the total area of the inlet, air can be discharged efficiently, so that heat can be radiated and cooled more efficiently.
In addition, it can be set as an embedded type water supply unit by providing an inflow port and an outflow port in a door.
[Brief description of the drawings]
FIG. 1 is a front view of a water supply unit in a state where doors according to a first embodiment of the present invention are removed and arranged side by side.
FIG. 2 is a front view of a door of a water supply unit according to a second embodiment of the present invention.
FIG. 3 is a front view of a door of a water supply unit according to a third embodiment of the present invention.
FIG. 4 is a front view of a door of a water supply unit according to a fourth embodiment of the present invention.
FIG. 5 is a front view of a door of a water supply unit according to a fifth embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cabinet case 2 Case main body 2a Drain outlet 3 Door 3a Inlet 3b Outlet 3c Inlet 3d Outlet 3e Inlet 3f Outlet 3g Inlet 4 Lock mechanism 5 Base 11 Water supply piping 11a Inlet 11b Discharge end 12 Backflow preventer 13A Pump 13B Pump 14 Pump part 15 Motor part 16 Outer fan fan 21 Pump control part 22 Control part 23A Inverter 23B Inverter 24 Inverter part 25 Outer fan fan 31 Drain piping

Claims (6)

A cabinet case having an openable / closable door ;
An inverter constituting the pump control unit disposed on the upper side in the cabinet case ;
Disposed on the lower side of the inverter, and the air pump outside fan fan upper, intermediate the motor section, the pump section and the lower side,
On the side or door of the cabinet case, an inlet provided at the same height as the inverter or higher than the inverter,
An outlet having a total area larger than the total area of the inlet, the side or door of the cabinet case being provided at a position lower than the outer fan of the air-cooled pump;
The water supply unit , wherein the air cooling pump and a pump control unit for controlling the air cooling pump are housed in the cabinet case . Water units Contact Keru outlet to the water supply unit according to claim 1, characterized in that provided at the bottom side or the door of the cabinet case. Contact Keru outlet to the water supply unit according to claim 1 or claim 2 is a side or doors of the cabinet casing, characterized in that it kicked slightly set lower than the outer fan fan of the pump Water supply unit. In the water supply unit according to any one of claims 1 to 3, the side surface or the door of the cabinet case and another inlet is provided at substantially the same height as the outer fan fan of the air pump water unit, characterized in that there. The water supply unit according to any one of claims 1 to 4, wherein the outlet is provided at a bottom of the cabinet case. In the water supply unit as claimed in any one of claims 5, wherein the inlet and the outlet, the water supply unit, which is a horizontally long shape.

Images