JP2015068522A - Filter device for liquid cooling device, and liquid cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that since a mesh filter is easy to be clogged, maintainability is made worse.SOLUTION: A filter device includes a coolant circuit to which a compressor, a condenser, an expansion valve and an evaporator are connected, and is attached to a liquid cooling device cooling liquid in the evaporator. In a state of being attached to the liquid cooling device, the filter device has: three second plate members 52 arranged along a vertical direction on the upstream side of the condenser 4; two first plate members 51 arranged in the vertical direction on the upstream side of the three second plate members 52; and a third plate member 53 arranged on the upstream side of the two first plate member 51.

Description

  The present invention relates to a liquid cooling device filter device and a liquid cooling device that are attached to, for example, a liquid cooling device that cools a liquid.

  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”). Therefore, the liquid cooling device includes a refrigerant circuit to which a compressor, a condenser, an expansion valve, and an evaporator are connected, and cools the working fluid (liquid) in the evaporator. In the conventional liquid cooling device, a mesh filter is disposed upstream of the condenser in order to prevent oil contained in the sucked oil smoke from adhering to the condenser.

Japanese Patent Publication 8-22363

  However, since the mesh filter is easily clogged with attached oil, there is a problem that the maintainability is poor.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a filter device and a cooling device with improved maintainability.

  A filter device for a liquid cooling device according to a first invention is a filter device that includes a refrigerant circuit connected to a compressor, a condenser, an expansion valve, and an evaporator, and is attached to a liquid cooling device that cools the liquid in the evaporator. In the state attached to the liquid cooling device, a plurality of first plate members arranged along the vertical direction on the upstream side of the condenser and spaced apart from each other, the condenser, and the condenser One or a plurality of second plate members arranged at positions corresponding to the space between the plurality of first plate members are provided between the plurality of first plate members.

  In this liquid cooling device filter device, the oil smoke that has passed between the plurality of first plate members collides with the second plate member to remove the oil and prevent clogging with the adhered oil like a mesh filter. it can. Moreover, since the 2nd board member is arrange | positioned along the perpendicular direction and the oil adhering to a 2nd board member flows below, maintainability improves rather than what the 2nd board member was arrange | positioned along a horizontal direction. .

  In the liquid cooling device filter device according to a second aspect of the present invention, in the liquid cooling device filter device according to the first aspect of the present invention, the gap between the plurality of first plate members is upstream of the plurality of first plate members. And a third plate member arranged so as to cover the surface.

  In this liquid cooling device filter device, the oil smoke can be sucked from the direction parallel to the condenser, so that the oil smoke sucked from the left-right direction can collide with the gaps between the plurality of first plate members.

  In the liquid cooling device filter device according to a third aspect of the present invention, in the liquid cooling device filter device according to the second aspect of the present invention, the first plate member has a protrusion protruding on the side opposite to the condenser. It is characterized by.

  In this liquid cooling device filter device, oil is removed by oil smoke flowing along the first plate member colliding with the protrusion.

  In the liquid cooling device filter device according to the fourth invention, in the liquid cooling device filter device according to any one of the first to third inventions, the gap between the condenser and the second plate member is the The outer peripheral portion of the second plate member is blocked.

  In this liquid cooling device filter device, it is possible to prevent oil smoke that does not pass through the gap between the second plate members from flowing into the condenser.

  In the cooling device filter device according to the fifth invention, in the cooling device filter device according to any one of the first to fourth inventions, there is a gap between the first plate member and the second plate member. The outer peripheral portion of the first plate member is blocked.

  In this cooling device filter device, it is possible to prevent oil smoke that does not pass through the gap between the first plate members from flowing into the condenser.

  A cooling device filter device according to a sixth invention is the cooling device filter device according to any one of the first to fifth inventions, wherein the horizontal end of the first plate member and the horizontal direction of the second plate member are the same. It is characterized in that the direction end portion overlaps.

  In this liquid cooling device filter device, it is possible to prevent oil smoke that has passed between the plurality of first plate members from flowing into the condenser without colliding with the second plate member.

  A cooling device filter device according to a seventh invention is the cooling device filter device according to any one of the first to sixth inventions, wherein at least one horizontal end of the first plate member and the third plate member. The portion is curved toward the condenser side.

  In this cooling device filter device, the oil smoke that has circulated around the horizontal end of the first plate member or the third plate member collides with the back surface of the first plate member or the third plate member, thereby removing the oil.

  A liquid cooling device according to an eighth invention includes the filter device according to any one of the first to seventh inventions.

  In this liquid cooling apparatus, the same effect as any one of the first to seventh inventions can be obtained.

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

  In 1st invention, while the oil smoke which passed between the some 1st board members collides with a 2nd board member, while removing oil, it can prevent clogged with adhering oil like a mesh filter. Moreover, since the 2nd board member is arrange | positioned along the perpendicular direction and the oil adhering to a 2nd board member flows below, maintainability improves rather than what the 2nd board member was arrange | positioned along a horizontal direction. .

  In the second invention, since the oil smoke can be sucked from the direction parallel to the condenser, the oil smoke sucked from the left-right direction can collide with the gaps between the plurality of first plate members.

  In the third invention, the oil is removed by the oil smoke flowing along the first plate member colliding with the protrusion.

  In 4th invention, it can prevent that the oil smoke which does not pass through the clearance gap between 2nd board members flows into a condenser.

  In 5th invention, it can prevent that the oil smoke which does not pass through the clearance gap between 1st board members flows into a condenser.

  In 6th invention, it can prevent that the oil smoke which passed between several 1st board members flows into a condenser, without colliding with a 2nd board member.

  In the seventh aspect of the invention, the oil smoke that has entered the horizontal ends of the first plate member and the third plate member collides with the back surface of the first plate member and the third plate member, thereby removing the oil.

  In the eighth invention, the same effect as in the first to seventh inventions can be obtained.

It is a block diagram of the immersion type liquid cooling device concerning 1st Embodiment of this invention. It is a perspective view when the immersion type liquid cooling device shown in FIG. 1 is installed in a tank. It is an internal block diagram when the immersion type liquid cooling device shown in FIG. 1 is seen from the side. Fig.4 (a) is sectional drawing (sectional view in IVa-IVa of FIG.4 (b)) along the horizontal direction of a filter apparatus, FIG.4 (b) is a front view of a filter apparatus. It is a figure which shows the flow of the oil smoke in a filter apparatus.

  Hereinafter, embodiments of an immersion 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 FIG. 2, 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, and the evaporator 6 is disposed in the tank T. It is an immersion type liquid cooling device immersed in the working fluid stored in the tank. 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 shape of the tank T is an example, and is not limited to the above.

  As shown in FIG. 3, the condenser 4 of the liquid cooling device is disposed on the front surface 1 a side and the bottom surface 1 f in the device 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 is disposed so as to face the condenser 4 on the downstream side of the air flow of the condenser 4, for example. An electrical component 10 such as a control unit is disposed between the condenser 4 and the blower fan 9 and the upper surface 1 e of the apparatus main body 1. Further, the compressor 3 and the accumulator 8 are arranged on the downstream side of the air flow of the blower fan 9. The compressor 3 and the accumulator 8 are disposed on a support base 11 attached to the back surface 1b of the apparatus main body 1.

  As shown in FIG. 3, the evaporator 6 of the liquid cooling device is disposed vertically below the bottom surface 1 f of the apparatus main body 1, and has a coiled portion 12 formed in a coil shape along the vertical direction. ing. This coil-shaped part 12 is laminated | stacked doubly along the horizontal direction from a viewpoint of improving heat exchange efficiency, making small the up-down direction length. 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.

  Moreover, in this liquid cooling device, as shown in FIGS. 2 and 3, a filter device 50 (a liquid cooling device filter device) is attached to the front surface 1 a side of the device main body 1. The filter device 50 is disposed so as to face the condenser 4 on the upstream side of the air flow of the condenser 4. Therefore, in the liquid cooling device, oil contained in the sucked oil smoke can be prevented from adhering to the condenser 4.

  The configuration of the filter device 50 will be described in detail with reference to FIG. 4A is a cross-sectional view of the filter device 50 along the horizontal direction, and FIG. 4B is a front view of the filter device 50. In FIG. 4B, the third plate member 53 is not shown in order to explain the arrangement of the two first plate members 51 and the three second plate members 52.

  As shown in FIG. 4, the filter device 50 is attached to the device main body 1 of the liquid cooling device, and as shown in FIG. 4, three second plate members 52 arranged along the vertical direction on the upstream side of the condenser 4, There are two first plate members 51 arranged along the vertical direction on the upstream side of the three second plate members 52 and a third plate member 53 arranged on the upstream side of the two first plate members 51. doing. In the present embodiment, the first plate member 51, the second plate member 52, and the third plate member 53 are metal plate members. The three second plate members 52 are spaced apart from each other. The gaps between the three second plate members 52 and the condenser 4 are the outer peripheral portions of the three second plate members 52 (the sides of the outer second plate member 52, the upper side and the lower side of the second plate member 52). Is blocked. The two first plate members 51 are spaced apart from each other and are disposed at positions corresponding to the space between the second plate members 52. Therefore, the central second plate member 52 is disposed at a position corresponding to the space between the two first plate members 51. The horizontal end of the first plate member 51 and the horizontal end of the second plate member 52 are arranged so as to overlap when viewed from the front. The two first plate members 51 have protrusions 51 a that protrude on the opposite side to the condenser 4. The protrusion 51a is linearly arranged over the entire length at the center of the two first plate members 51. The gaps between the three second plate members 52 and the two first plate members 51 are the outer peripheral portions of the two first plate members 51 (the sides of the first plate member 51, the upper side of the first plate member 51 and Blocked at the bottom). The third plate member 53 is substantially the same size as the condenser 4 and is disposed so as to cover the gap between the two first plate members 51. Horizontal ends of the first plate member 51, the second plate member 52, and the third plate member 53 are curved toward the condenser 4 side. Accordingly, the gaps between the three second plate members 52 and the condenser 4 and the gaps between the two first plate members 51 and the three second plate members 52 are lateral, upward and downward. Each is blocked.

  In this filter device 50, as shown in FIG. 5, oil smoke is sucked from the horizontal end of the third plate member 53 toward the inside in the horizontal direction. The sucked oil smoke flows along the back surface of the third plate member 53, then passes between the first plate member 51 and the third plate member 53, and the gap between the two first plate members 51. Flowing into. Thereafter, the oil smoke collides with the second plate member 52 at the center and then flows toward the condenser 4 through the gap between the second plate members 52. Accordingly, the oil contained in the oil smoke that has passed through the gap between the two first plate members 51 collides with the second plate member 52 and adheres to the second plate member 52. In FIG. 5, the oil removed by the collision of oil smoke with the surfaces of the first plate member 51, the second plate member 52, and the third plate member 53 is shown as a black deposit.

<Characteristics of the filter device (liquid cooling device) of this embodiment>
In the filter device 50 of the present embodiment, the oil smoke that has passed between the two first plate members 51 collides with the second plate member 52 to remove the oil, and is clogged by the adhered oil like a mesh filter. Can be prevented. Further, since the second plate member 52 is arranged along the vertical direction and the oil adhering to the second plate member 52 flows downward, the maintainability is higher than that in which the second plate member 52 is arranged along the horizontal direction. Will improve. Further, the oil that flows downward along the second plate member 52 is reused.

  Further, in the filter device 50 of the present embodiment, the third plate member 53 is disposed so as to cover the gap between the two first plate members 51 on the upstream side of the two first plate members 51, so that condensation occurs. Since the oil smoke can be sucked from the direction parallel to the container 4, the oil smoke sucked from the left and right direction can collide with the gap between the two first plate members 51.

  Further, in the filter device 50 of the present embodiment, since the first plate member 51 has the protruding portion 51a that protrudes on the side opposite to the condenser 4, the oil smoke flowing along the first plate member 51 is the protruding portion. Oil is removed by colliding with 51a.

  Further, in the filter device 50 of the present embodiment, the gap between the condenser 4 and the second plate member 52 is blocked, so that the oil smoke that does not pass through the gap between the second plate members 52 enters the condenser 4. It can be prevented from flowing.

  Further, in the filter device 50 of the present embodiment, since the gap between the first plate member 51 and the second plate member 52 is closed, oil smoke that does not pass through the gap between the first plate members 51 is condensed. 4 can be prevented from flowing.

  Further, in the filter device 50 of the present embodiment, the first plate member 51 is disposed so that the horizontal end portion of the first plate member 51 and the horizontal end portion of the second plate member 52 overlap each other. It is possible to prevent the oil smoke that has passed between them from flowing into the condenser 4 without colliding with the second plate member 52.

  Further, in the filter device 50 of the present embodiment, since the horizontal end portions of the first plate member 51 and the third plate member 53 are both curved toward the condenser 4, the first plate member 51 and the third plate The oil smoke is removed by the oil smoke that has entered the horizontal end of the member 53 colliding with the back surface of the first plate member 51 or the third plate member 53.

  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.

  In the above-described embodiment, the case where the filter device includes the three second plate members 52 and the two first plate members 51 has been described. However, the number of the first plate members 51 and the second plate members 52 is not limited. May be changed.

  Moreover, although the filter apparatus demonstrated the case where it had a 3rd board member in the above-mentioned embodiment, it does not need to have a 3rd board member.

  Moreover, although the above-mentioned embodiment demonstrated the case where the 1st board member had the protrusion which protrudes on the opposite side to a condenser, it does not need to have a protrusion.

  Moreover, although the above-mentioned embodiment demonstrated the case where the clearance gap between a condenser and a 2nd board member was obstruct | occluded in the outer peripheral part of a 2nd board member, the clearance gap between a condenser and a 2nd board member. However, the outer peripheral portion of the second plate member may not be blocked.

  Moreover, although the above-mentioned embodiment demonstrated the case where the clearance gap between a 1st board member and a 2nd board member was obstruct | occluded in the outer peripheral part of a 1st board member, a 1st board member, a 2nd board member, The gap between the two may not be blocked at the outer peripheral portion of the first plate member.

  Moreover, although the above-mentioned embodiment demonstrated the case where the horizontal direction edge part of a 1st board member and the horizontal direction edge part of a 2nd board member overlap, the horizontal direction edge part of a 1st board member, and a 2nd board member It does not need to be arranged so as to overlap with the horizontal end of each other.

  Moreover, although the above-mentioned embodiment demonstrated the case where the horizontal direction edge part of a 1st board member and a 3rd board member was curving to the condenser side, either one of a 1st board member and a 3rd board member was demonstrated. The horizontal end portion may be curved toward the condenser side, or the horizontal direction end portions of the first plate member and the third plate member may not be curved toward the condenser side.

  Moreover, although the 1st board member 51, the 2nd board member 52, and the 3rd board member 53 demonstrated the case where it was a metal board member in the above-mentioned embodiment, the 1st board member 51 and the 2nd board member were demonstrated. The material of the 52 and the third plate member 53 may be changed.

  In the above-described embodiment, the immersion type liquid cooling device in which the evaporator is immersed in the working fluid stored in the tank T has been described. However, in the circulation type liquid cooling device in which the evaporator is accommodated in the apparatus main body. There may be. 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 and a pump for conveying the working fluid are accommodated in the device main body. 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, the working fluid is guided from the tank into the device main body, Cool the working fluid inside.

  If this invention is utilized, while the oil smoke which passed between several 1st board members collides with a 2nd board member, while removing oil, it can prevent clogging with adhering oil like a mesh filter.

3 Compressor 4 Condenser 5 Expansion Valve 6 Evaporator 50 Filter Device 51 First Plate Member 51a Projection 52 Second Plate Member 53 Third Plate Member

Claims (8)

A filter device comprising a refrigerant circuit connected to a compressor, a condenser, an expansion valve and an evaporator, and attached to a liquid cooling device for cooling the liquid in the evaporator,
In the state attached to the liquid cooling device,
A plurality of first plate members disposed along the vertical direction on the upstream side of the condenser and spaced apart from each other;
One or a plurality of second plate members disposed along a vertical direction between the condenser and the plurality of first plate members, and disposed at a position corresponding to the space between the plurality of first plate members; A filter device for a liquid cooling device, comprising:   2. The liquid cooling device according to claim 1, further comprising a third plate member disposed on an upstream side of the plurality of first plate members so as to cover a gap between the plurality of first plate members. Filter device.   3. The liquid cooling device filter device according to claim 2, wherein the first plate member has a protrusion protruding to the opposite side of the condenser. 4.   The liquid cooling device filter device according to any one of claims 1 to 3, wherein a gap between the condenser and the second plate member is closed at an outer peripheral portion of the second plate member.   The liquid cooling device filter according to any one of claims 1 to 4, wherein a gap between the first plate member and the second plate member is closed at an outer peripheral portion of the first plate member. apparatus.   The liquid cooling device filter device according to claim 1, wherein a horizontal end portion of the first plate member and a horizontal end portion of the second plate member overlap each other.   The liquid cooling device according to claim 1, wherein at least one horizontal end portion of the first plate member and the third plate member is curved toward the condenser side. Filter device.   The liquid cooling device provided with the filter apparatus in any one of Claims 1-7.

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