JP2024013962A - Refrigerating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerating machine capable of improving versatility in installation.

SOLUTION: A water-cooled refrigerating machine includes a compressor, a water-cooled condenser, a refrigerant connecting portion, a water pipe connecting portion, an electric component box, and a base member. The base member has a substantially rectangular contour shape and has a first base member on which the compressor and the water-cooled condenser are mounted, and a second base member on which the electric component box is mounted. The contour shape of the first base member is substantially a square of which a length of four sides is equal to a length of a short side of the substantially rectangular contour shape of the base member. The contour shape of the second base member is substantially a rectangle of which a length of a long side is equal to the length of the short side of the base member. The second base member is assembled to the first base member in a manner that any of three sides excluding one side of the contour shape of the first base member over which a refrigerant pipe connected to the refrigerant connecting portion and a water pipe connected to the water pipe connecting portion straddle, and the long side of the substantially rectangular contour shape of the second base member are close to each other.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2024,JPO&INPIT

Description

Embodiments of the present invention relate to refrigerators, particularly water-cooled refrigerators.

A refrigerator includes refrigeration cycle components and an electrical component box that controls the refrigeration cycle components, and supplies a liquid phase refrigerant to a cooler installed in, for example, an apparatus or a warehouse. Refrigeration cycle components include, for example, a compressor, an air-cooled condenser, a fan motor, an accumulator, etc., and circulate refrigerant through piping. There are also water-cooled refrigerators that are equipped with a water-cooled condenser instead of an air-cooled condenser and do not require an air-cooled condenser or a fan motor. The electrical parts box stores various electrical parts, such as a control board, a communication module, and a display, which control the operations of these refrigeration cycle parts.

Water-cooled refrigerators do not require air-cooled condensers or fan motors, so they can be made smaller, and the refrigeration cycle parts and electrical parts box are all compactly mounted on a common base member (unit base). be done. Such water-cooled refrigerators are often incorporated into freezing/refrigeration equipment. The water pipe connected to the water-cooled condenser is a strong pipe material, and is connected to the water-cooled condenser from a predetermined direction. In addition, the refrigerant piping that supplies the refrigerant cooled by the water-cooled condenser to the cooler etc. is connected to the water-cooled condenser, and the refrigerant piping through which the refrigerant that is supplied to the cooler and returns flows is connected to the accumulator. Each is connected from a predetermined direction. Here, since the refrigerant piping is a copper piping, it is possible to bend it gently, but it cannot be bent extremely, and there are restrictions on the connecting direction of the refrigerant piping as well. For this reason, the refrigerant pipes are basically connected from one predetermined direction, similar to the water pipes connected to the water-cooled condenser.

The external shape of an electrical parts box is defined by, for example, a box casing that houses electrical components and a cover that is removable from the casing, and the cover is removed from the casing during installation or maintenance of the refrigerator. electrical components are exposed. Therefore, in consideration of ease of working on the electrical components, it is preferable that the refrigerator be installed so that the operator can directly face the opening of the casing with the cover removed.

Japanese Patent Application Publication No. 6-82146

However, when installing a water-cooled refrigerator into a refrigeration/refrigeration system, if the refrigerator is installed in a desired direction so that the operator can directly face the opening of the electrical parts box, the water piping and refrigerant piping must be placed in the designated direction. You may not be able to connect from any direction. In other words, in a freezing/refrigeration device, the installation direction of the water-cooled refrigerator is uniquely determined due to the routing of the water piping and refrigerant piping, and the water-cooled refrigerator cannot be placed in any direction. As a result, depending on the installation location, it may not be possible to install the water-cooled refrigerator in a desired orientation that allows the operator to directly face the opening of the electrical component box. For example, when the outline shape of the unit base is rectangular, the installation orientation of the water-cooled refrigerator is likely to be restricted by the installation location, and there is a possibility that the water-cooled refrigerator cannot be installed in the desired orientation. Therefore, there is a need to increase the versatility of the installation direction of water-cooled refrigerators.

An object of the embodiments of the present invention is to provide a refrigerator that can increase versatility in installation orientation.

A water-cooled refrigerator according to one embodiment includes a compressor, a water-cooled condenser, a refrigerant connection, a water piping connection, an electrical component box, and a base member. The compressor compresses and discharges the refrigerant. The water-cooled condenser cools and condenses the refrigerant discharged from the compressor with cooling water. The refrigerant connection portion is connected to a refrigerant pipe that allows the refrigerant to flow to the outside. The water piping connection portion is connected to the water-cooled condenser and is connected to a water piping that allows the cooling water to flow to the outside. The electrical parts box houses a control board that controls the operation of the compressor. The base member has a substantially rectangular outline, and the compressor, the water-cooled condenser, the refrigerant piping, the water piping, and the electrical component box are mounted on the base member. The base member includes a first base member on which the compressor and the water-cooled condenser are mounted, and a second base member on which the electrical component box is mounted. The outline shape of the first base member is approximately square, with the length of the four sides being the length of the short side of the approximately rectangular outline shape of the base member. The outline shape of the second base member is approximately rectangular, with the length of the short side of the base member being the length of the long side. The second base member has three sides other than one side of the outline of the first base member that are straddled by the refrigerant pipe connected to the refrigerant connection part and the water pipe connected to the water pipe connection part. It is assembled to the first base member such that one of the two base members and the long side of the substantially rectangular contour of the second base member are close to each other.

FIG. 1 is a block diagram schematically showing the configuration of a water-cooled refrigerator according to an embodiment. FIG. 2 is a plan view showing a state before the first base member and the second base member are assembled in the water-cooled refrigerator according to the embodiment. FIG. 2 is a plan view showing a first assembly mode in which a first base member and a second base member are assembled in the water-cooled refrigerator according to the embodiment. FIG. 4 is a diagram showing a first assembly mode from the direction of arrow A3 shown in FIG. 3 in the water-cooled refrigerator according to the embodiment. FIG. 7 is a plan view showing a second assembly mode in which the first base member and the second base member are assembled in the water-cooled refrigerator according to the embodiment. FIG. 7 is a plan view showing a third assembly mode in which the first base member and the second base member are assembled in the water-cooled refrigerator according to the embodiment.

Hereinafter, embodiments will be described with reference to FIGS. 1 to 6.
FIG. 1 is a block diagram schematically showing the configuration of a water-cooled refrigerator 1 according to this embodiment. This water-cooled refrigerator 1 is an indoor refrigerator that is generally installed indoors, and supplies liquid phase refrigerant cooled by a refrigeration cycle to equipment on the load side. The equipment on the load side is, for example, a device such as a constant temperature and humidity chamber, or a cooler installed in a prefabricated building (regardless of whether it is in the same building as the water-cooled refrigerator 1). The solid line in FIG. 1 shows the refrigerant flow path in the refrigeration cycle of the water-cooled refrigerator 1, and the broken line shows the control system of the water-cooled refrigerator 1.

As shown in FIG. 1, a water-cooled refrigerator (hereinafter also simply referred to as a refrigerator) 1 includes refrigeration cycle components 2 and an electrical component box 4 as main elements. These refrigeration cycle parts 2 and electrical parts box 4 are mounted on a base member 6.

The refrigeration cycle components 2 are various devices that constitute the refrigeration cycle in the refrigerator 1, and include, for example, a compressor 21, a water-cooled condenser 22, an accumulator 23, a refrigerant control component 24, refrigerant pipes 25, 28, and the like. These are connected to a refrigerant flow path 20 that circulates the refrigerant between the equipment on the load side and the equipment on the load side to which the cooled refrigerant is supplied. The compressor 21 compresses and discharges refrigerant. The water-cooled condenser 22 is a tank-shaped component filled with refrigerant, and cools the refrigerant discharged from the compressor 21 by flowing it through external water pipes 8a and 8c that are connected when the refrigerator 1 is installed. It is cooled with water (endotherms) and condensed. The cooling water flows from the cooling water inlet (water pipe connection part) 22a of the water-cooled condenser 22 via the water pipe 8a into the flow channel 22b made of copper pipe etc. provided in the water-cooled condenser 22, Before it flows out from the cooling water outlet (water pipe connection part) 22c to which the water pipe 8c is connected, it comes into contact with the refrigerant in the water-cooled condenser 22 and exchanges heat. The flow channel 22b is made of, for example, a pipe formed in a meandering or spiral shape to promote heat exchange between the cooling water flowing inside the flow channel 22b and the refrigerant filled outside. The cooling water is, for example, underground water or industrial water, and is supplied from the outside. The accumulator 23 separates the refrigerant supplied to the load side equipment and returned into gas and liquid, and supplies only the gas phase refrigerant to the compressor 21. Furthermore, a gas-liquid separator (accumulator) 21a is provided on the suction port side of the compressor 21 so that the compressor 21 does not compress the liquid phase refrigerant. The refrigerant control components 24 are electronic devices and sensors that control the flow state of the refrigerant, such as the flow rate and pressure, and include, for example, an electronic control valve (PMV) 24a that functions as a flow rate adjustment valve, a pressure sensor 24b, and the like. The refrigerant pipes 25 and 28 constitute a part of the refrigerant passage 20 and allow the refrigerant to flow with the equipment on the load side. The water pipes 8a, 8c are connected to a water-cooled condenser 22, and allow cooling water to flow with the outside.

The electrical parts box 4 houses electrical parts that control the operation of the refrigeration cycle parts 2. The electrical components include, for example, a control board 41 that controls the operations of the compressor 21 and the refrigerant control component 24 and collects temperature and pressure data from the refrigerant control component 24, as well as a communication module, a display, and the like. As shown in FIG. 2, the electrical component box 4 includes a housing 42, which is a metal box body that has an opening and houses a control board 41, etc., and a housing 42 that is screwed to close the opening. It is configured with a cover 43 attached thereto. By removing screws and the like fixing the cover 43 from the casing 42 and opening the opening, the control board 41 attached at a position facing the opening is exposed to the outside. Thereby, the control board 41 housed in the electrical component box 4 becomes accessible from the outside. The opening of the housing 42 corresponds to the openable portion 44 of the electrical component box 4.

The control board 41 is, for example, a circuit board in which various electrical and electronic components are connected and mounted on a single printed circuit board by soldering or the like. Note that depending on the circuit configuration, the printed circuit board may be divided into multiple pieces. The control board 41 is further provided with an operation section consisting of a dip switch, a rotary switch, etc., and a display section such as an 8-segment LED, allowing various control settings to be made. Therefore, when installing or adjusting the refrigerator 1, the user or the like can remove the cover 43 and open the opening to operate the operation section on the control board 41 and check the displayed contents from the outside. There is. In addition, when the refrigerator 1 breaks down, an inspection/repair person can access the control board 41 from the outside by removing the cover 43 and opening the opening of the casing 42, making it easier to replace and repair electrical components. There is.

Returning to FIG. 1, the base member 6 is a substantially flat member having a region 6a (hereinafter referred to as a mounting region) in which the refrigeration cycle components 2 and the electrical component box 4 are mounted. The mounting area 6a of the base member 6 has a substantially rectangular outline. The contour shape is a planar shape represented by the contour of the mounting area 6a of the base member 6 when viewed from above in the vertical direction. In this embodiment, the mounting area 6a covers substantially the entire base member 6. Therefore, the contour shape of the base member 6 is approximately rectangular, which is the same as the contour shape of the mounting area 6a. The base member 6 needs to firmly maintain heavy parts such as the compressor 21 on its upper surface, and is made of an iron plate with a thickness of about 2 to 3 mm. A space of about 1 to 2 cm can be formed with respect to the mounting surface of the member 6.

The base member 6 has a first base member 61 and a second base member 62, and has a structure that allows these to be assembled and integrated. The first base member 61 has a region (hereinafter referred to as a first region) 61a in which the refrigeration cycle component 2 is mounted. The second base member 62 has a region (hereinafter referred to as a second region 62a) in which the electrical component box 4 is mounted. The first area 61a is a part of the mounting area 6a, and the second area 62a corresponds to the mounting area 6a other than the first area 61a.

In FIG. 1, the flow of refrigerant in the refrigeration cycle is shown by arrows drawn along refrigerant piping. First, when the refrigerator 1 starts operating, high-temperature, high-pressure gaseous refrigerant compressed by the compressor 21 is discharged into the refrigerant flow path 20 . The discharged gas phase refrigerant is guided to the water-cooled condenser 22. The gas phase refrigerant guided to the water-cooled condenser 22 is cooled and condensed by the cooling water flowing through the flow channel 22b of the water-cooled condenser 22, and changes into a high-pressure liquid phase refrigerant. The high-pressure liquid-phase refrigerant is supplied to load-side equipment, such as a cooler (not shown), through an external refrigerant pipe 100 connected to a liquid-side refrigerant pipe 25 and a liquid-side valve (refrigerant connection part) 26. Ru. The other end of the refrigerant pipe 25 is connected to the refrigerant pipe connection port 22d of the water-cooled condenser 22. Before the high-pressure liquid phase refrigerant is supplied to the load-side cooler, the pressure is reduced by a pressure reducing device provided in the load-side refrigerant piping path, and the high-pressure liquid phase refrigerant is changed into a low-temperature, low-pressure gas-phase refrigerant.

In the cooler, the low-pressure gas-phase refrigerant exchanges heat with water, air, etc., evaporates, and changes into a low-pressure gas-phase refrigerant whose temperature has increased. The low-pressure gas-phase refrigerant is guided from the cooler to the accumulator 23 through the refrigerant pipe 101, the gas-side valve (refrigerant connection) 27, and the gas-side refrigerant pipe 28. The other end of the refrigerant pipe 28 is connected to a refrigerant pipe connection port (inlet) 23a of the accumulator 23. If the refrigerant contains liquid-phase refrigerant that has not completely evaporated, the accumulator 23 separates the refrigerant into liquid-phase refrigerant and gas-phase refrigerant. The pressure sensor 24b detects the pressure of the low-pressure gas phase refrigerant guided to the accumulator 23. The low-pressure gas-phase refrigerant separated from the liquid-phase refrigerant is sucked into the compressor 21 from the accumulator 23, and compressed by the compressor 21 again into high-temperature and high-pressure gas-phase refrigerant, which is then discharged into the refrigerant flow path 20.

In the example shown in FIG. 1, a part of the refrigerant that has passed through the water-cooled condenser 22, for example, a liquid phase refrigerant or a gas-liquid two-phase refrigerant, is diverted from the refrigerant flow path 20 and returned to the compressor 21. An injection flow path 20a that cools the inside of 21 is provided. The electronic control valve 24a is controlled by a controller such as an MCU mounted on the control board 41, and adjusts the flow rate of the low-temperature, low-pressure gas phase refrigerant flowing through the injection flow path 20a. If the temperature of the compressor 21 becomes high, the amount of refrigerant flowing through the injection passage 20a is increased, and if the temperature of the compressor 21 is low, the injection passage 20a is closed. For the temperature of the compressor 21, the case temperature of the compressor 21 may be detected, or the discharge temperature of the compressor 21 may be substituted. Note that the injection flow path 20a may not be provided as long as the compressor 21 does not reach a high temperature. Further, if fine temperature control of the compressor 21 is not required, an on-off valve may be used instead of the electronic control valve 24a.

As described above, in this embodiment, the refrigeration cycle components 2 are mounted on the first base member 61, and the electrical component box 4 is mounted on the second base member 62. 2 to 6 schematically show aspects of the base member 6 formed by assembling the first base member 61 and the second base member 62.

As shown in FIG. 2, the first base member 61 has a first region 61a that has a substantially square outline when viewed from above in the vertical direction. A substantially square is defined as a shape that includes, in addition to a square, a quadrilateral whose four sides are different in length to the extent that they can be considered to be the same and whose four corners are right angles or can be considered to be right angles. The contour shape is a planar shape shown by the contour of the first region 61a of the first base member 61 when viewed from above in the vertical direction. In this embodiment, the first region 61a extends substantially over the entire first base member 61. Therefore, the contour shape of the first base member 61 is approximately square, which is the same as the contour shape of the first region 61a.

As described above, the first region 61a includes the refrigeration cycle parts 2, such as the compressor 21, the water-cooled condenser 22, the accumulator 23, the refrigerant control parts 24, the refrigerant pipes 25 and 28, and the water pipes 8a and 8b. is installed. The first region 61a has a substantially square outline shape, with the length of the short side of the base member 6, that is, the short side 6s of the mounting region 6a having a substantially rectangular outline being the length of the four sides 611 to 614. . The length of the short side 6s of the mounting area 6a is the length shown by L6s in FIG. 3. The lengths of the four sides 611 to 614 of the first region 61a are the lengths shown by L61 in FIG. These lengths L6s and L61 are approximately the same size.

The second base member 62 has a second region 62a having a substantially rectangular profile when viewed from above in the vertical direction. A substantially rectangular shape is defined as a shape that includes not only a rectangle but also a quadrilateral whose four corners are right angles or can be considered to be right angles, and a quadrilateral whose long sides are different in length so that they can be considered the same, or whose short sides are different in length. Contains quadrilaterals that are different enough to be considered the same. Note that the substantially rectangular shape includes a substantially square shape. The contour shape is a planar shape shown by the contour of the second region 62a of the second base member 62 when viewed from above in the vertical direction. In this embodiment, the second region 62a extends substantially over the entire second base member 62. Therefore, the contour shape of the second base member 62 is approximately rectangular, which is the same as the contour shape of the second region 62a.

As described above, the electrical component box 4 is mounted in the second area 62a. The second region 62a has a substantially rectangular contour shape with the length L6s of the short side of the base member 6, that is, the short side 6s of the mounting region 6a having a substantially rectangular contour shape, as the length of the long sides 621 and 623. ing. The lengths of the long sides 621 and 623 of the second area 62a are shown as L62l in FIG. The length is approximately the same as the length L61. The length of the short sides 622, 624 of the second region 62a is the length shown by L62s in FIG. good.

The second base member 62 is assembled to the first base member 61 such that one of the four sides of the first region 61a and the long side of the second region 62a are close to each other. Thereby, the mounting area 6a of the base member 6 becomes approximately rectangular. The length L6s of the short side 6s of the mounting area 6a is approximately the same as the length L61 of the four sides 611 to 614 of the first area 61a and the length L62l of the long sides 621, 623 of the second area 62a. The length L6l of the long side 6l of the mounting area 6a is approximately the same as the length L61 of the four sides 611 to 614 of the first area 61a plus the length L62s of the short sides 622, 624 of the second area 62a. It is the same size.

Here, as shown in FIGS. 3 to 6, one end of a refrigerant pipe 25 through which a liquid-phase refrigerant flows is connected to the refrigerant pipe connection port 22d of the water-cooled condenser 22. The other end of the refrigerant pipe 25 is connected to a liquid side valve 26 . One end of an external refrigerant pipe 100 is connected to the liquid side valve 26 . The other end of the refrigerant pipe 100 is connected to a load-side device (for example, a cooler). Further, one end of a refrigerant pipe 28 through which a gaseous refrigerant flows is connected to the refrigerant pipe connection port 23a of the accumulator 23. The other end of the refrigerant pipe 28 is connected to the gas side valve 27. One end of an external refrigerant pipe 101 is connected to the gas side valve 27 . The other end of the refrigerant pipe 101 is connected to a load-side device (for example, a cooler).

A cooling water inlet 22a and a cooling water outlet 22c of the water-cooled condenser 22 are connected to one end of a water pipe 8a and a water pipe 8c, respectively, through which cooling water flows. The cooling water inlet 22a and the cooling water outlet 22c are connection ports for the water pipe 8a and the water pipe 8c from the outside. The other end of the water pipe 8a is connected to, for example, a cooling water supply source. The other end of the water pipe 8c is connected to, for example, a drainage channel or circulation channel for cooling water.

The refrigerant pipes 100, 101 and the water pipes 8a, 8c are arranged across a specific side (hereinafter referred to as the reference side) among the four sides of the first region 61a. In the examples shown in FIGS. 3 to 6, one side 611 of the four sides 611 to 614 of the first region 61a is a reference side (hereinafter referred to as reference side 611). The liquid side valve 26 and the gas side valve 27, which are refrigerant connection parts, open toward the reference side 611 in the direction in which the refrigerant pipes 100 and 101 straddle the reference side 611, and the refrigerant pipes 100 and 101 are connected through these openings. ing. The cooling water inlet 22a and the cooling water outlet 22c, which are cooling water connection parts, open toward the reference side 611 in the direction in which the water pipes 8a and 8c straddle the reference side 611, and the water pipes 8a and 8c are connected through these openings. has been done. That is, the liquid side valve 26, the gas side valve 27, the cooling water inlet 22a, and the cooling water outlet 22c are arranged so that the refrigerant pipes 100, 101 and the water pipes 8a, 8c both straddle the same reference side 611.

Further, as shown in FIGS. 3 to 6, the electrical component box 4 is mounted on the second base member 62 with the openable portion 44 facing one side of the long sides 621, 623 of the second region 62a. has been done. In the example shown in FIGS. 3 to 6, the electrical component box 4 is mounted with the openable portion 44, that is, the cover 43, facing the long side 623 of the second region 62a. In the following description, the long side 623 of the second region 62a will be referred to as a reference side 623.

Therefore, the second base member 62 is arranged such that any of the three sides 612, 613, 614 other than the reference side 611 of the first region 61a and the long side of the second region 62a are close to each other. It is assembled to member 61. Specifically, in the second base member 62, the long side 621 other than the reference side 623 of the second region 62a is close to any of the three sides 612, 613, and 614 other than the reference side 611 of the first region 61a. It is assembled to the first base member 61 in such a manner. That is, the first base member 61 and the second base member 62 have three modes in which any of the three sides 612, 613, 614 of the first region 61a and the long side 621 of the second region 62a are close to each other. You can select and assemble one of them.

The first assembly mode shown in FIGS. 3 and 4 is an assembly mode in which one side 612 of the first region 61a and the long side 621 of the second region 62a are close to each other. In the first assembly mode, the refrigerant piping (liquid side refrigerant piping) 100 connected to the liquid side valve 26, the refrigerant piping (gas side refrigerant piping) 101 connected to the gas side valve 27, and the water-cooled condenser 22. The water pipes 8a and 8c to be connected are piped downward in FIG. 3 and toward the front in FIG.

The second assembly mode shown in FIG. 5 is an assembly mode in which one side 613 of the first region 61a and the long side 621 of the second region 62a are close to each other. In the second assembly mode, the refrigerant pipes 100, 101 connected to the liquid side valve 26 and the gas side valve 27, and the water pipes 8a, 8c connected to the water-cooled condenser 22 are directed toward the right in FIG. Plumbed.

A third assembly mode shown in FIG. 6 is an assembly mode in which one side 614 of the first region 61a and the long side 621 of the second region 62a are close to each other. In the third assembly mode, the refrigerant pipes 100, 101 connected to the liquid side valve 26 and the gas side valve 27, and the water pipes 8a, 8c connected to the water-cooled condenser 22 are piped upward in FIG. be done.

The method of assembling the first base member 61 and the second base member 62 is not particularly limited. In the example shown in FIGS. 3 to 6, the first base member 61 and the second base member 62 are fastened together using a fastening member 9. As shown in FIG.
The first base member 61 has through holes (hereinafter referred to as first through holes) 610a to 610d near four sides 611 to 614. The first through holes 610a to 610d penetrate the first region 61a. The second base member 62 has through holes (hereinafter referred to as second through holes) 620a and 620b near the long side 621 that communicate with the first through hole 61b.

In the examples shown in FIGS. 2 to 6, the first through holes 610a to 610d are provided near the ends of the four sides 611 to 614, in other words, one each is provided near the four corners of the first region 61a. . Furthermore, one second through hole 620a, 620b is provided near both ends of the long side 621 of the second region 62a. The second base member 62 has a pair of assembly pieces 625, 626 extending with a predetermined width from both ends of the long side 621 of the second region 62a along the short sides 622, 624. The second through holes 620a and 620b pass through these assembly pieces 625 and 626.

In the first assembly mode shown in FIGS. 3 and 4, the first through hole 610a and the second through hole 620a communicate with each other, and the first through hole 610b and the second through hole 620b communicate with each other. ing. Bolts 9a and 9b, which are fastening members 9, are inserted through these communicating through holes, and the first base member 61 and the second base member 62 are assembled. Note that a screw may be used as the fastening member.

In the second assembly mode shown in FIG. 5, the first through hole 610b and the second through hole 620a communicate with each other, and the first through hole 610c and the second through hole 620b communicate with each other. Bolts 9a and 9b are inserted through these communicating through holes, and the first base member 61 and the second base member 62 are assembled.

In the third assembly mode shown in FIG. 6, the first through hole 610c and the second through hole 620a communicate with each other, and the first through hole 610d and the second through hole 620b communicate with each other. Bolts 9a and 9b are inserted into these communicating through holes, and the first base member 61 and the second base member 62 are assembled and integrated.

As described above, according to the present embodiment, the base member 6 can be configured by assembling the first base member 61 and the second base member 62. Among these base members 61 and 62, the first base member 61 is a substantially square shape in which the length L6s of the short side 6s of the base member 6 having a substantially rectangular outline is the length L61 of the four sides 611 to 614. It has an outline shape. The second base member 62 has a substantially rectangular outline shape with the length L6s of the short side 6s of the base member 6 being the length of the long sides 621, 623. The second base member 62 is arranged such that the long side 621 of the second region 62a other than the reference side 623 is close to any of the three sides 612, 613, and 614 of the first region 61a other than the reference side 611. , are assembled to the first base member 61.

Therefore, the first base member 61 and the second base member 62 can be arranged in three ways in which any of the three sides 612, 613, 614 of the first region 61a and the long side 621 of the second region 62a are close to each other. You can select and assemble one of them. That is, the first base member 61 and the second base member 62 can be assembled in any of the first to third assembly modes shown in FIGS. 3 to 6. Therefore, regardless of which of the first to third assembly modes is selected, the outline shape of the base member 6 can be made into the same substantially rectangular shape.

In this embodiment, in any of the first to third assembly modes, the first base member 61 and the second base member 62 are connected to one of the three sides 612, 613, and 614 other than the reference side 611. The long side 621 other than the side 623 can be assembled so as to be close to each other. On the other hand, the refrigerant pipes 100 and 101 connected to the liquid-side valve 26 and the gas-side valve 27, and the water pipes 8a and 8c connected to the water-cooled condenser 22 are all piped across the reference side 611. Therefore, the refrigerant pipes 100, 101 and the water pipes 8a, 8c can be installed without interfering with the electrical component box 4. After the first base member 61 and the second base member 62 are assembled, the electrical wiring from the electrical component box 4 is connected to the compressor 21 and the refrigerant control component 24 using a connector or the like.

As described above, the outline shape of the base member 6 is the same substantially rectangular shape in any of the first to third assembly modes, so that the outline shape of the base member 6 can be fixed to the water-cooled condenser 22 without changing the outline shape. The water-cooled refrigerator 1 can be installed by changing the connecting directions of the refrigerant pipes 100, 101 and the water pipes 8a, 8c. That is, the versatility of the installation orientation of the water-cooled refrigerator 1 can be increased.

In this embodiment, the electrical component box 4 is mounted with the openable portion 44, that is, the cover 43 facing the reference side 623 of the second region 62a. On the other hand, the first base member 61 and the second base member 62 can be assembled by selecting any of the first to third assembly modes. For this reason, for example, when installing the water-cooled refrigerator 1 in a desired direction where the operator can directly face the openable part 44 of the electrical parts box 4, the refrigerant pipe 25 and the water pipes 8a, 8c are connected to the water-cooled condenser 22. This makes it easier to avoid a situation where it becomes impossible to connect from a predetermined direction. Moreover, even if the outline shape of the base member 6 is substantially rectangular, the installation orientation is less likely to be restricted by the installation location, and the versatility of the installation orientation of the water-cooled refrigerator 1 that can be installed indoors can be increased. This makes it easier to install the water-cooled refrigerator 1 in a desired orientation that allows the operator to directly face the openable portion 44 of the electrical component box 4, thereby improving the workability of the electrical component box 4. .

Although the embodiments of the present invention have been described above, the embodiments are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

1... Water-cooled refrigerator, 2... Refrigeration cycle parts, 4... Electrical parts box, 6... Base member, 6a... Mounting area, 6l... Long side of mounting area, 6s... Short side of mounting area, 8a, 8c... Water Piping, 9... Fastening member, 20... Refrigerant flow path, 21... Compressor, 22... Water-cooled condenser, 22a... Cooling water inlet (water pipe connection part), 22c... Cooling water outlet (water pipe connection part), 25 , 100... Refrigerant pipe (liquid side refrigerant pipe), 26... Liquid side valve (refrigerant connection part), 27... Gas side valve (refrigerant connection part), 28, 101... Refrigerant pipe (gas side refrigerant pipe), 41... Control Substrate, 42... Housing, 43... Cover, 44... Openable portion, 61... First base member, 61a... First region, 62... Second base member, 62a... Second region, 610a, 610b , 610c, 610d...first through hole, 611,612,613,614...four sides of first region, 620a, 620b...second through hole, 621,623...long side of second region, 622, 624... Short side of the second area, 625, 626... Assembly piece, L6l... Length of the long side of the mounting area, L6s... Length of the short side of the mounting area, L61... Length of the four sides of the first area , L62l... Length of the long side of the second area, L62s... Length of the short side of the second area.

Claims (5)

A compressor that compresses and discharges refrigerant;
a water-cooled condenser that cools and condenses the refrigerant discharged from the compressor with cooling water;
a refrigerant connection part to which a refrigerant pipe for circulating the refrigerant with the outside is connected;
a water pipe connection part connected to the water-cooled condenser and connected to a water pipe for circulating the cooling water with the outside;
an electrical parts box that houses a control board that controls the operation of the compressor;
a base member having a substantially rectangular outline and on which the compressor, the water-cooled condenser, the refrigerant piping, the water piping, and the electrical parts box are mounted;
The base member includes a first base member on which the compressor and the water-cooled condenser are mounted, and a second base member on which the electrical component box is mounted,
The outline shape of the first base member is approximately square, with the length of the four sides being the length of the short side of the approximately rectangular outline shape of the base member,
The outline shape of the second base member is a substantially rectangular shape with the length of the short side of the base member being the length of the long side,
The second base member has three sides other than one side of the outline of the first base member that are straddled by the refrigerant pipe connected to the refrigerant connection part and the water pipe connected to the water pipe connection part. The water-cooled refrigerator is assembled to the first base member such that one of the two base members and a long side of the substantially rectangular contour of the second base member are close to each other. The electrical component box has an openable portion that exposes the control board to the outside, and the electrical component box has an openable portion that exposes the control board to the outside. mounted on the base member,
The second base member is assembled to the first base member such that the other of the long sides of the contour shape is close to any of the three sides of the contour shape of the first base member. The water-cooled refrigerator according to claim 1. The first base member has first through holes near four sides,
The second base member has second through holes communicating with the first through holes near four sides,
The first base member and the second base member are assembled by being fastened by a fastening member inserted into the first through hole and the second through hole. Water-cooled refrigerator. 4. The water pipe connection part has an opening facing the one side in a direction in which the water pipe straddles the one side of the first base member, and the water pipe is connected through the opening. Water-cooled refrigerator. The water cooling according to claim 4, wherein the refrigerant connection part has an opening facing the one side in a direction in which the refrigerant piping straddles the one side of the first base member, and the refrigerant piping is connected through the opening. shape refrigerator.

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