JP2015068524A - Liquid cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that in a conventional liquid cooling device, since a condenser cannot be cleaned with liquid such as cleaning liquid, maintainability of the condenser is made worse.SOLUTION: A liquid cooling device includes: a cooling circuit to which a compressor 3, a condenser 4, an expansion valve and an evaporator 6 are connected; a blower fan 9 that supplies air flow to the condenser 4; and a fan cover 10 that is opposite to the condenser 4 on the air flow downstream side of the condenser 4 and in which an opening 11 in which the blower fan 9 is arranged is formed. In cleaning of the condenser 4, between the condenser 4 and the fan cover 10, a water shield member 17 opposite to the substantially whole surface of the opening 11 of the fan cover 10 is provided.

Description

  The present invention relates to a liquid cooling apparatus that cools a liquid, for example.

  The liquid cooling device is a device for cooling, for example, a grinding fluid of a machine tool such as a grinding machine or a machining center, a spindle lubricating oil (hereinafter referred to as “machine fluid”). This liquid cooling device includes a refrigerant circuit connected to a compressor, a condenser, an expansion valve, and an evaporator, and a blower fan that supplies an air flow to the condenser, and cools the working fluid (liquid) in the evaporator. To do.

Japanese Patent Publication No. 8-22363

  By the way, in said liquid cooling device, since the oil contained in an air flow adheres to a condenser, the maintenance of a condenser is needed. In this liquid cooling device, the condenser is conventionally cleaned with a brush or the like, but there is a problem that maintenance of the condenser becomes complicated due to manual work. Therefore, it is conceivable to clean the condenser using a liquid such as a cleaning liquid. However, if the condenser is to be cleaned with a liquid such as a cleaning liquid, a motor or other electrical equipment disposed on the downstream side of the air flow of the condenser, etc. Since the liquid is scattered on the current-carrying part, the condenser cannot be cleaned with a liquid such as a cleaning liquid. Therefore, there is a problem that the maintainability of the condenser is bad.

  Then, the objective of this invention is providing the liquid cooling device which can improve the maintainability of a condenser.

  A liquid cooling apparatus according to a first aspect of the present invention includes a refrigerant circuit connected to a compressor, a condenser, an expansion valve, and an evaporator, and a blower fan that supplies an air flow to the condenser. A liquid cooling device for cooling a liquid, comprising a fan cover that is opposed to the condenser and formed with an opening in which the blower fan is disposed on an air flow downstream side of the condenser, and cleaning the condenser In some cases, a water shielding member is provided between the condenser and the fan cover so as to face substantially the entire surface of the opening of the fan cover.

  In this liquid cooling device, when the condenser is washed, a water shielding member is provided between the condenser and the fan cover so as to face substantially the entire surface of the fan cover opening, so that the condenser is washed with a liquid such as a washing liquid. When this occurs, it is possible to prevent the liquid from being scattered on the energization part such as the fan motor of the blower fan. Therefore, since the condenser can be cleaned with a liquid such as a cleaning liquid, the maintainability of the condenser is improved.

  A liquid cooling device according to a second aspect of the present invention includes a refrigerant circuit connected to a compressor, a condenser, an expansion valve, and an evaporator, and a blower fan that supplies an air flow to the condenser. A liquid cooling device for cooling a liquid, wherein a water-impervious member facing substantially the entire surface of the condenser is provided near the downstream side of the air flow of the condenser when the condenser is washed. .

  In this liquid cooling device, when the condenser is washed, a water shielding member is provided in the vicinity of the downstream side of the air flow of the condenser so as to face substantially the entire surface of the condenser, so that the condenser is washed with a liquid such as a washing liquid. In addition, it is possible to prevent the liquid from splashing on the current-carrying parts such as a motor and other electrical components disposed on the downstream side of the condenser air flow. Therefore, since the condenser can be cleaned with a liquid such as a cleaning liquid, the maintainability of the condenser is improved.

  A liquid cooling device according to a third aspect of the invention is the liquid cooling device according to the first or second aspect of the invention, comprising a substantially rectangular parallelepiped-shaped device main body that accommodates the compressor, the condenser, and the expansion valve. The condenser is disposed along one side surface of the main body, and an insertion hole into which the water shielding member is inserted is formed in a surface orthogonal to the one side surface.

  In this liquid cooling device, since the insertion hole is formed on the surface orthogonal to the surface on which the condenser is disposed, the water shielding member can be inserted in the horizontal direction or the vertical direction, and the water shielding member can be easily attached.

  A liquid cooling device according to a fourth aspect of the invention is the liquid cooling device according to the first or second aspect of the invention, comprising a substantially rectangular parallelepiped-shaped device main body that accommodates the compressor, the condenser, and the expansion valve. The condenser is disposed along one side surface of the main body, and an insertion hole into which the water shielding member is inserted is formed on the one side surface.

  In this liquid cooling device, since the insertion hole is formed on the same surface as the surface on which the condenser is disposed, the water shielding member can be attached using the space for sucking the air flow formed before the condenser. . Therefore, the space around the liquid cooling device can be used effectively.

  The liquid cooling device according to a fifth aspect of the present invention is the liquid cooling device according to the first aspect of the present invention, wherein the water shielding member has a water shielding position facing substantially the entire surface of the fan cover opening, and at least a part of the opening. And a communication position that is not opposed to each other.

  In this liquid cooling device, the water shielding member can select a water shielding position where it faces substantially the entire surface of the fan cover opening and a communication position where it does not face at least a part of the fan cover opening. The trouble of removing can be saved.

  The liquid cooling device according to a sixth aspect of the present invention is the liquid cooling device according to the second aspect of the present invention, wherein the water shielding member has a water shielding position facing substantially the entire surface of the condenser, and at least a part of the condenser. It is configured to be able to select a communication position that does not oppose.

  In this liquid cooling device, since the water shielding position can be selected so that the water shielding member faces substantially the entire surface of the condenser and the communication position that does not face at least a part of the condenser, it is troublesome to install and remove the water shielding member. Can be omitted.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, when the condenser is washed, a water shielding member is provided between the condenser and the fan cover so as to face substantially the entire surface of the opening of the fan cover, so that the condenser is washed with a liquid such as a washing liquid. When this occurs, it is possible to prevent the liquid from being scattered on the energization part such as the fan motor of the blower fan. Therefore, since the condenser can be cleaned with a liquid such as a cleaning liquid, the maintainability of the condenser is improved.

  In the second invention, at the time of cleaning the condenser, a water shielding member is provided in the vicinity of the condenser on the downstream side of the air flow, so that the condenser is cleaned with a liquid such as a cleaning liquid. In addition, it is possible to prevent the liquid from splashing on the current-carrying parts such as a motor and other electrical components disposed on the downstream side of the condenser air flow. Therefore, since the condenser can be cleaned with a liquid such as a cleaning liquid, the maintainability of the condenser is improved.

  In 3rd invention, since an insertion hole is formed in the surface orthogonal to the surface where a condenser is arrange | positioned, a water shielding member can be inserted in a horizontal direction or a vertical direction, and it is easy to attach a water shielding member.

  In the fourth invention, since the insertion hole is formed on the same surface as the surface on which the condenser is disposed, the water shielding member can be attached using the space for sucking the air flow formed before the condenser. . Therefore, the space around the liquid cooling device can be used effectively.

  In the fifth aspect of the invention, the water shielding member can select a water shielding position where it faces substantially the entire surface of the fan cover opening and a communication position that does not face at least a part of the fan cover opening. The trouble of removing can be saved.

  In the sixth aspect of the invention, the water shielding position can be selected so that the water shielding member faces substantially the entire surface of the condenser and the communication position that does not face at least a part of the condenser. Can be omitted.

It is a lineblock diagram of the liquid cooling device concerning a 1st embodiment of the present invention. It is a perspective view when the liquid cooling device shown in FIG. 1 is installed in the tank. (A) is a front view of the liquid cooling apparatus shown in FIG. 1, (b) is an internal block diagram when the liquid cooling apparatus is viewed from the right side, and (c) is a condenser removed. It is a front view of the liquid cooling device. (A) is an internal block diagram when the liquid cooling device at the time of washing | cleaning of a condenser is seen from a right side surface, (b) is IV (b) -IV (b) sectional view taken on the line of (a). (C) is a right side view of the liquid cooling device. It is an internal block diagram when the liquid cooling device concerning 2nd Embodiment of this invention is seen from a right side surface, (a) shows a mode just before a water shielding member is inserted in a liquid cooling device, (b) ) Shows a state when the water shielding member is inserted into the liquid cooling device, and (c) shows a state after the water shielding member is inserted into the liquid cooling device. It is an internal block diagram when the liquid cooling device concerning 3rd Embodiment of this invention is seen from a right side surface, (a) is arrange | positioned in the water shielding position where the water shielding member opposes the whole surface of opening of a fan cover. (B) shows a state when the water-impervious member is arranged at a communication position that does not face a part of the entire surface of the opening of the fan cover. It is an internal block diagram when the liquid cooling device concerning 4th Embodiment of this invention is seen from the right side surface. It is an internal block diagram when the liquid cooling device concerning the 2nd modification of this invention is seen from the right side surface.

  Hereinafter, embodiments of a liquid cooling apparatus according to the present invention will be described with reference to the drawings.

[First Embodiment]
As shown in FIG. 1, the liquid cooling device of the present embodiment has a refrigerant circuit 7 in which a compressor 3, a condenser 4, an expansion valve 5, and an evaporator 6 are connected. In the refrigerant circuit 7, the condenser 4 is connected to the discharge port of the compressor 3, and the expansion valve 5 is connected to the condenser 4. Then, one end of the evaporator 6 is connected to the expansion valve 5, and the suction port of the compressor 3 is connected to the other end of the evaporator 6 via the accumulator 8. In this liquid cooling device, the refrigerant discharged from the compressor 3 sequentially flows to the condenser 4, the expansion valve 5, and the evaporator 6, and a cooling cycle is formed that returns to the compressor 3 via the accumulator 8.

  As shown in FIGS. 2 and 3, the liquid cooling apparatus is configured such that the evaporator 6 is disposed below the apparatus main body 1 that houses the compressor 3, the condenser 4, and the expansion valve 5. Is an immersion-type liquid cooling device that is immersed in the working fluid stored in the tank T. Therefore, in this liquid cooling device, the working fluid is cooled in the tank T. The apparatus main body 1 has a substantially rectangular parallelepiped shape, and has a plurality of legs 2 protruding downward from the bottom surface 1 f of the apparatus main body 1. An opening for inserting the evaporator 6 into the tank T is provided on the upper surface of the tank T, and the bottom surface 1f of the apparatus main body 1 is fixed around the opening. The tank T is provided with, for example, a pump P for conveying the working fluid. As shown in FIGS. 1 and 2, the working fluid discharged from the machine tool is discharged from the tank T by driving the pump P. The machining fluid supplied into the tank T and cooled in the tank T is supplied to the machine tool.

  The condenser 4 of this liquid cooling device is arrange | positioned along the front 1a (one side surface) of the apparatus main body 1, as shown in FIG. That is, the front surface of the condenser 4 faces the front grille 1a1 and the filter 1a2 arranged on the front surface 1a of the apparatus main body 1. A blower fan 9 that supplies an air flow to the condenser 4 is disposed in the apparatus main body 1. The blower fan 9 has a fan motor 9 a and a plurality of blades 9 b, and is disposed so as to face the condenser 4 on the downstream side of the air flow of the condenser 4. The air flow generated by driving the fan motor 9a is sucked into the condenser 4 through an opening formed in the front surface 1a of the apparatus main body 1 and heat exchanged by the condenser 4 is performed outside the apparatus main body 1. Blown out. Around the blower fan 9, as shown in FIG. 3C, for example, a fan cover 10 having a circular opening 11 in which the blower fan 9 is disposed is disposed. The opening 11 of the fan cover 10 is disposed so as to face the condenser 4 on the air flow downstream side of the condenser 4. In the present embodiment, the one side surface of the apparatus main body 1 refers to the front surface 1a, the back surface 1b, the right side surface 1c, and the left side surface 1d. In FIG. 3A, the filter 1a2 is shown only on a part of the front grille 1a1, but in actuality, the filter 1a2 is arranged over substantially the entire area of the front grille 1a1.

  The compressor 3 and the accumulator 8 (refer FIG. 1) are arrange | positioned at the air flow downstream of the ventilation fan 9. FIG. The compressor 3 includes a motor and a compression mechanism that compresses the refrigerant by driving the motor. Further, an electrical component 12 such as a control unit is disposed between the condenser 4 and the fan cover 10 and the upper surface 1 e of the apparatus main body 1. A discharge port 19 is provided below the condenser 4 in the front face 1a of the apparatus main body 1 to discharge the liquid that has flowed into the liquid cooling device when the condenser 4 is cleaned with a liquid such as a cleaning liquid. .

  As shown in FIG. 3, the evaporator 6 of the liquid cooling device is disposed vertically below the bottom surface 1 f of the device body 1 and is formed in a coil shape along the vertical direction. An agitator 13 for agitating the working fluid in the tank T is attached to the bottom surface 1 f of the apparatus main body 1. The stirrer 13 includes a stirring motor 14 fixed in the apparatus main body 1, a shaft portion 15 extending downward from the bottom surface 1 f of the device main body 1 from the stirring motor 14, and a stirring portion fixed to the tip of the shaft portion 15. 16. The stirrer 13 is disposed on the air flow downstream side of the fan cover 10.

  By the way, in this liquid cooling device, since it is arrange | positioned in a factory, for example, the oil contained in the air flow in a factory adheres to the condenser 4. FIG. For this reason, maintenance of the condenser 4 is required. However, in this liquid cooling device, as shown in FIG. 3, a plurality of motors (fan motor 9 a of blower fan 9, motor of compressor 3, and stirring motor 14 of stirrer 13 are provided on the downstream side of the air flow of condenser 4. Etc.) and other electrical components (not shown). For this reason, if the condenser 4 is to be cleaned with a liquid such as a cleaning liquid or water in this state, the liquid is scattered on the motor and other electrical components, causing the motor and other electrical components to malfunction. Therefore, the condenser 4 cannot be cleaned with a liquid such as a cleaning liquid or water. Therefore, in the liquid cooling device of the present embodiment, as shown in FIGS. 4A and 4B, the cleaning liquid is prevented from splashing on the current-carrying parts such as the motor and other electrical components when the condenser 4 is cleaned. A water-impervious member 17 is provided.

  When the condenser 4 is cleaned, the water shielding member 17 is disposed between the condenser 4 and the fan cover 10 between the entire surface of the opening 11 of the fan cover 10 as shown in FIGS. 4 (a) and 4 (b). It arrange | positions so that it may oppose. As shown in FIG. 4B, the vertical length of the water shielding member 17 is slightly shorter than the vertical length of the condenser 4, and the width of the water shielding member 17 (the length in the horizontal direction) is condensed. The width of the vessel 4 is substantially the same. This is on the air flow downstream side of the condenser 4 and in the vicinity of one end in the left-right direction (specifically, the right end) of the upper end portion 4c and the lower end portion 4d of the condenser 4. This is because the refrigerant pipes 4e and 4f extending from the pipe are arranged so that the water shielding member 17 does not interfere with the refrigerant pipes 4e and 4f. In this liquid cooling device, the water shielding member 17 is opposed to the entire surface of the opening 11 of the fan cover 10, but may be opposed to the substantially entire surface. In FIG. 4B, the opening 11 of the fan cover 10 is not actually visible, but the opening 11 of the fan cover 10 is indicated by a chain line for convenience of understanding of the invention.

  The water shielding member 17 is made of, for example, resin or metal. As shown in FIG. 4C, the water shielding member 17 is horizontally disposed from an insertion hole 18 formed in the right side surface 1c of the apparatus main body 1 (a surface orthogonal to one side surface (front surface 1a) of the apparatus main body 1). Attachment or removal is performed by inserting or withdrawing along the direction. The insertion hole 18 is, for example, a hole that is substantially the same as or larger than the vertical cross section of the water-impervious member 17 and can be opened and closed by a lid or the like. In the present embodiment, “a surface orthogonal to one side surface of the apparatus main body 1” refers to, for example, the right side surface 1c, the left side surface 1d, the top surface 1e, and the bottom surface 1f when the one side surface is the front surface 1a.

  In this liquid cooling device, when the condenser 4 is washed, first, the water shielding member 17 is inserted from the insertion hole 18 and the water shielding member 17 is attached between the condenser 4 and the fan cover 10. Then, the condenser 4 is washed with a liquid such as a washing liquid or water from the front side of the condenser 4. As shown by the arrow in FIG. 4A, the liquid such as the cleaning liquid flows into the liquid cooling device from the front of the apparatus body 1 and then flows below the condenser 4 by hitting the water shielding member 17. It is discharged from the outlet 19. The water shielding member 17 is removed after the condenser 4 is washed in order to prevent the air flow rate from being lowered during operation of the liquid cooling device.

<Characteristics of the liquid cooling device of this embodiment>
The liquid cooling device of this embodiment has the following features. In the liquid cooling device according to the present embodiment, when the condenser 4 is washed, the water shielding member 17 facing the substantially entire surface of the opening 11 of the fan cover 10 is provided between the condenser 4 and the fan cover 10. Even if the container 4 is cleaned with a liquid such as a cleaning liquid, the liquid scatters to the current-carrying parts such as the motor (fan motor 9a of the blower fan 9, motor of the compressor 3, and stirring motor 14 of the stirrer 13) and other electrical components Can be prevented. Therefore, the condenser 4 can be cleaned with a liquid such as a cleaning liquid, and the maintainability of the condenser 4 can be improved.

  Moreover, in the liquid cooling device of this embodiment, since the insertion hole 18 is formed in the surface (right side surface 1c) orthogonal to the surface (front surface 1a) on which the condenser 4 is disposed, the water shielding member 17 is disposed in the horizontal direction. It can be inserted, and it is easy to attach the water shielding member 17 to the liquid cooling device.

[Second Embodiment]
Next, a liquid cooling apparatus according to the second embodiment will be described with reference to FIG. The liquid cooling device according to the present embodiment is different from the first embodiment in that the method of attaching the water shielding member to the liquid cooling device is different from the first embodiment. In addition, in this embodiment, about the thing which has the structure similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

  The water shielding member 20 of this liquid cooling device is formed of, for example, a flexible material, and the size and position of the water shielding member 20 are substantially the same as those of the water shielding member 17 of the first embodiment. This water shielding member 20 is inserted from an insertion hole 21 formed on the same surface (front surface 1a) as the surface (front surface 1a) on which the condenser 4 is disposed. The insertion hole 21 is formed below the condenser 4 in the front face 1a, and can be opened and closed by a lid or the like. The insertion hole 21 also serves as a discharge port for discharging a liquid such as a cleaning liquid that has flowed into the liquid cooling device. On the downstream side (rear side) of the insertion hole 21, the water shielding member 20 is guided to the downstream side of the air flow of the condenser 4 (in this embodiment, particularly between the condenser 4 and the fan cover 10). A guide member 22 is arranged. The guide member 22 is, for example, a rail member that supports a part of the water-impervious member 20, and is curved in a J shape from the insertion hole 21 to the upper end of the condenser 4 as shown in FIG. 5. As shown in FIGS. 5A to 5C in order, the water shielding member 20 is inserted into the liquid cooling device along the guide member 22 and arranged on the downstream side of the air flow of the condenser 4.

<Characteristics of the liquid cooling device of this embodiment>
The liquid cooling device of this embodiment has the following features. In the liquid cooling device of the present embodiment, the insertion hole 21 is formed on the same surface (front surface 1a) as the surface on which the condenser 4 is arranged, so that a space for sucking an airflow formed in front of the condenser 4 is used. (Normally, no other device or object is arranged in front of the condenser 4), and the water shielding member 20 can be attached. Therefore, the space around the liquid cooling device can be used effectively. For example, in the first embodiment, since the insertion hole 18 is formed in the right side surface 1c, disposing the other device or object in the vicinity of the right side surface 1c becomes an obstacle when the water shielding member 17 is inserted. In this liquid cooling device, even if other devices or objects are placed on the side, upper, or rear vicinity of the liquid cooling device, it does not become an obstacle when inserting the water shielding member 20, and a useless space is eliminated. Can do.

[Third Embodiment]
Next, a liquid cooling device according to a third embodiment will be described with reference to FIG. In the liquid cooling device according to the present embodiment, the water shielding member 23 has at least one of the water shielding position (see FIG. 6A) facing the substantially entire surface of the opening 11 of the fan cover 10 and the opening 11 of the fan cover 10. This is different from the first embodiment in that it is configured to be able to select a communication position (see FIG. 6B) that does not oppose the part. In addition, in this embodiment, about the thing which has the structure similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

  This liquid cooling device has a moving means (not shown) for moving the water shielding member 23 between the water shielding position and the communication position. This moving means is, for example, a lever provided outside the liquid cooling device, and an operator can select a water shielding position and a communication position by operating this lever. When the operator operates the moving means in a state where the water shielding member 23 is located at the water shielding position (see FIG. 6A), the water shielding member 23 is folded up and down as shown in FIG. 6B. As a result, the water shielding member 23 moves to the communication position. Accordingly, it is possible to prevent the ventilation rate from being lowered during operation of the liquid cooling device. In FIG. 6B, the water shielding member 23 is arranged at the communication position, so that a part a of the opening 11 of the fan cover 10 faces the water shielding member 23 in the vertical direction, and the opening 11 of the fan cover 10. The other part b of this is not opposed to the water shielding member 23.

<Characteristics of the liquid cooling device of this embodiment>
The liquid cooling device of this embodiment has the following features. In the liquid cooling apparatus according to the present embodiment, a water shielding position where the water shielding member 23 faces substantially the entire surface of the opening 11 of the fan cover 10 and a communication position which does not face at least a part of the opening 11 of the fan cover 10 can be selected. Therefore, the trouble of attaching or removing the water shielding member 23 can be saved.

[Fourth Embodiment]
Next, a liquid cooling apparatus according to a fourth embodiment will be described with reference to FIG. The liquid cooling apparatus of this embodiment is different from the first embodiment in that the arrangement positions of the blower fan 24 and the fan cover 25 are different from the arrangement positions of the blower fan 9 and the fan cover 10 of the first embodiment. Specifically, in this liquid cooling apparatus, as shown in FIG. 7, the blower fan 24 and the fan cover 25 are arranged to face the upper surface 1 e of the apparatus body 1 on the downstream side of the condenser 4. The Further, the liquid cooling device of this embodiment is different from the first embodiment in that the water shielding member 26 faces the entire surface of the condenser 4 (may be substantially the entire surface) in the vicinity of the downstream side of the air flow of the condenser 4. . In addition, in this embodiment, about the thing which has the structure similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

<Characteristics of the liquid cooling device of this embodiment>
The liquid cooling device of this embodiment has the following features. In the liquid cooling device of the present embodiment, when the condenser 4 is washed, the water shielding member 26 facing the substantially entire surface of the condenser 4 is provided near the downstream side of the air flow of the condenser 4. Even if cleaning is performed with a liquid such as a cleaning liquid, it is possible to prevent the liquid from splashing on current-carrying parts such as a motor (such as the motor of the compressor 3 and the stirring motor 14 of the stirrer 13) and other electrical components. Therefore, the condenser 4 can be cleaned with a liquid such as a cleaning liquid, and the maintainability of the condenser 4 can be improved.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

[Modification]
[First Modification]
Next, the liquid cooling device according to the first modification will be described. The liquid cooling device according to the present modification has the above fourth embodiment in that the water shielding member can select a water shielding position that faces substantially the entire surface of the condenser 4 and a communication position that does not face at least a part of the condenser 4. It differs from the form. In addition, in this embodiment, about the thing which has the structure similar to the said 4th Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

  This liquid cooling device has a moving means for moving the water shielding member between the water shielding position and the communication position. This moving means is, for example, a lever provided outside the liquid cooling device, and an operator can select a water shielding position and a communication position by operating this lever. When the operator operates the moving means in a state where the water shielding member is located at the water shielding position, the water shielding member moves to the communication position by folding the water shielding member up and down. Accordingly, it is possible to prevent the ventilation rate from being lowered during operation of the liquid cooling device.

<Characteristics of liquid cooling device of this modification>
The liquid cooling device of this modification has the following features. In the liquid cooling device according to the present modification, the water shielding member can select a water shielding position where it faces substantially the entire surface of the condenser 4 and a communication position where it does not face at least a part of the condenser 4. And the trouble of removing can be saved.

[Second Modification]
Next, a liquid cooling device according to a second modification will be described with reference to FIG. In the liquid cooling device of the above embodiment, the evaporator 6 is disposed below the apparatus main body 1 that houses the compressor 3, the condenser 4, and the expansion valve 5, and the evaporator 6 is stored in the tank T. In contrast to the immersion type liquid cooling device immersed in the working fluid, the liquid cooling device according to the second modification is a circulation type liquid cooling device in which the evaporator 27 is accommodated in the apparatus main body 1. Different from the above embodiment. In addition, in this modification, about the thing which has the structure similar to the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

  This liquid cooling device is a device disposed at a position away from the tank T in which the working fluid is stored, and an evaporator 27 and a working fluid transporting pump 28 are accommodated in the device main body 1. The pump 28 has a drive motor. The pump 28 is fixed, for example, on the downstream side of the airflow of the fan cover 10 and on the bottom surface 1f. The water shielding member 17 prevents liquid such as cleaning liquid from splashing when the condenser 4 is cleaned. Moreover, this liquid cooling device does not have a stirrer. Unlike the immersion type liquid cooling device, this liquid cooling device is arranged at a different location from the tank, and by driving the pump 28, the working fluid is guided from the tank into the apparatus main body 1, The machining fluid is cooled in the apparatus main body 1.

[Other variations]
In the first and fourth embodiments, the insertion hole into which the water shielding member is inserted is formed in the right side surface 1c of the apparatus main body 1. However, if the surface is orthogonal to the surface on which the condenser 4 is disposed, the right side It may not be the surface 1c. Therefore, when the condenser 4 is disposed on the front surface 1a of the apparatus main body 1, the insertion hole may be formed on the left side surface 1d, or may be formed on the upper surface 1e or the bottom surface 1f. When the insertion hole is formed in the left side surface 1d, the water shielding member can be inserted in the horizontal direction, and when the insertion hole is formed in the upper surface 1e or the bottom surface 1f, the water shielding member can be inserted in the vertical direction. Therefore, it is easy to attach the water shielding member to the liquid cooling device.

  Further, in the third embodiment, the water shielding member 23 moves from the water shielding position to the communication position by being folded up and down, but how the water shielding member moves from the water shielding position to the communication position is as follows. The design can be selected as appropriate.

  Moreover, in the said 1st-4th embodiment, although this invention was applied to the immersion-type liquid cooling device which immerses the evaporator 6 in a liquid and cools a liquid, as shown in a 2nd modification, an apparatus main body The present invention may be applied to a circulation type liquid cooling apparatus in which an evaporator is housed and the liquid is cooled in the apparatus.

  Moreover, in the said 4th Embodiment and 2nd modification, although a water-impervious member is inserted from the insertion hole formed in the right side surface 1c of the apparatus main body 1, as shown in the said 2nd Embodiment, The water-impervious member may be inserted from the same surface (front surface 1a) as the surface on which the condenser 4 is disposed, or as shown in the third embodiment and the first modification, However, it may be configured such that a water shielding position that faces substantially the entire surface of the condenser 4 and a communication position that does not face at least a part of the condenser 4 can be selected.

  If the present invention is used, the maintainability of the condenser is improved.

DESCRIPTION OF SYMBOLS 1 Apparatus main body 3 Compressor 4 Condenser 5 Expansion valve 6 Evaporator 7 Refrigerant circuit 9, 24 Blower fan 10 Fan cover 11 Opening 17, 20, 23, 26 Water shielding member 18, 21 Insertion hole

Claims (6)

A refrigerant circuit comprising: a refrigerant circuit connected to a compressor, a condenser, an expansion valve and an evaporator; and a blower fan for supplying an air flow to the condenser, wherein the liquid is cooled in the evaporator,
Having a fan cover formed with an opening on the downstream side of the condenser facing the condenser and in which the blower fan is disposed;
During washing of the condenser,
A liquid cooling device, wherein a water shielding member is provided between the condenser and the fan cover so as to face substantially the entire surface of the opening of the fan cover. A refrigerant circuit comprising: a refrigerant circuit connected to a compressor, a condenser, an expansion valve and an evaporator; and a blower fan for supplying an air flow to the condenser, wherein the liquid is cooled in the evaporator,
During washing of the condenser,
A liquid cooling device characterized in that a water-impervious member facing substantially the entire surface of the condenser is provided in the vicinity of the air flow downstream side of the condenser. An apparatus body having a substantially rectangular parallelepiped shape that accommodates the compressor, the condenser, and the expansion valve;
The said condenser is arrange | positioned along one side surface of the said apparatus main body, and the insertion hole into which the said water shielding member is inserted is formed in the surface orthogonal to the said one side surface. The liquid cooling device described in 1. An apparatus body having a substantially rectangular parallelepiped shape that accommodates the compressor, the condenser, and the expansion valve;
The liquid according to claim 1 or 2, wherein the condenser is disposed along one side surface of the apparatus main body, and an insertion hole into which the water shielding member is inserted is formed on the one side surface. Cooling system. The water shielding member is
The liquid cooling device according to claim 1, wherein the liquid cooling device is configured to be able to select a water shielding position facing substantially the entire surface of the opening of the fan cover and a communication position not facing at least a part of the opening. . The water shielding member is
The liquid cooling device according to claim 2, wherein the liquid cooling device is configured to be able to select a water shielding position that faces substantially the entire surface of the condenser and a communication position that does not face at least a part of the condenser.

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