JP2018014171A - Thawing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly melt an ice body by directly heating the ice body by a heating target.SOLUTION: A heating target 40 is provided including: a first constituent member 41 provided inside of a drain body part 24 for exothermic heat; and a second constituent member 42 and a third constituent member 46 provided for heat transfer to the drain body part 24 and its peripheral members, thereby the apparatus is capable of surely thawing an ice body inside of the drain body part 24 or the like. Moreover, the ice body can be thawed more quickly since these constituent members are formed of metal materials different from each other, that is, the first constituent member 41 of stainless steel, and the second constituent member 42 and the third constituent member 46 of aluminum alloy.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a thawing device, and more particularly to a thawing device that can be attached to a drain or a valve and has a heating function using electromagnetic induction.

  The drain is provided integrally or adjacent to, for example, an oil separator that separates oil from blow-by gas generated when the engine is driven, or a heat exchanger that performs heat exchange of water vapor supplied from a boiler. In other words, the separated oil and condensed water are collected and sent to an apparatus for reuse, or discharged to the outside. In addition, although it is the term which shows the produced | generated liquid itself from here, it defines as what collect | recovers various liquids here. Further, the liquid itself is referred to as a drain liquid in the following. Below, an example of the oil separator which provided the drain is demonstrated.

  FIG. 11 is a cross-sectional view showing an oil separator according to the prior art. In FIG. 11, 100 is a ventilator, 101 is a drain unit, 102 is a check valve, 103 is a drain port, 104 is a filter, 105 is an inflow port, and 106 is a filter holder.

  FIG. 11 is an invention disclosed in Japanese Patent Application Laid-Open No. 2014-046281, and is for thawing ice bodies of a water faucet provided in a house or the like. Inside the ventilator 100, a filter 104 supported by a filter holder 106 is provided. The filter 104 captures oil contained in the blow-by gas flowing from the inflow port 105. A drain unit 101 is provided below the filter 104. The drain unit 101 discharges the oil separated from the blow-by gas from the drain port 103 to the outside of the ventilator 100. The drain unit 101 is provided with a check valve 102 to prevent oil from flowing back from the drain port 103. In the above configuration, when the temperature of the atmosphere around the ventilator 100 is greatly lowered, the water vapor contained in the blow-by gas may become condensed water and become ice bodies in the drain unit 101. When such an ice body is formed, the check valve 102 does not operate, so that the ventilator 100 does not function normally. Therefore, the following inventions have been proposed to thaw this ice body.

  FIG. 12 is a cross-sectional view illustrating an installation state of a thawing device using electromagnetic induction according to the related art. In FIG. 12, 201 is a high frequency induction heating device, 202 is a water supply pipe, 203 is a conductive layer, 204 is an inner wall, 205 is an outer wall, and 206 is a freezing part.

  FIG. 12 is an invention disclosed in Japanese Patent Application Laid-Open No. 11-148151, and is for melting a ice body by heating a water supply pipe provided in a general house or the like. That is, the rising portion of the water supply pipe 202 that supplies hot water to the mixed tap hot water from a water heater (not shown) is piped behind the wall between the outer wall 205 and the inner wall 204, and the pipe is indoors or outdoors. It is designed not to be exposed directly to the screen. A conductive layer 203 made of aluminum is wound around the rising portion of the water supply pipe 202. In this configuration, when excitation is performed by a coil (not shown) inside the high-frequency induction heating device 201, an eddy current is generated in the conductive layer 203 to generate heat, and the frozen portion 206 in which water inside the water supply pipe 202 is frozen is generated. Heat is transmitted and the freezing part 206 thaws.

  By the way, in order to apply the thawing device as shown in FIG. 12 to the drain, the shape and structure of the heating target, that is, the metal body that generates heat by exciting the coil, such as the conductive layer 203, becomes a problem. That is, the drain is generally formed in a funnel shape, and the upper portion of the drain has a larger diameter than a water supply pipe provided in a general house. Therefore, in the thawing device shown in FIG. 13, when the heating target is wound around the outer peripheral surface of the drain, heat is not sufficiently transmitted to the ice body inside the drain, and it may take a long time until the ice body is completely thawed. Conceivable. In particular, ice bodies may not be thawed in cold regions. Also, as a secondary problem, induction heating by high frequency causes the temperature of the heating target to rise rapidly, so it is not intended that the ice inside the drain be near the heating target before it is thawed. Without excessive heating.

  FIG. 13 is a cross-sectional view showing a PCV valve equipped with a thawing device using a PTC heater according to the prior art. In FIG. 13, 300 is a PCV valve, 301 is a cylindrical part, 302 is a valve body, 303 is a valve seat, 304 is a heating element, 305 is a heat transfer body, 306 is a heat receiving part, 307 is a heat radiation part, 308 is a coil spring, 309 Is a partition wall.

  FIG. 13 is an invention disclosed in Japanese Patent Laid-Open No. 2015-124611. The PCV valve 300 is provided in a PCV system in which blow-by gas is returned to the intake system and recombusted with the air-fuel mixture. The flow rate of the blow-by gas flowing through the inside of the cylindrical portion 301 is adjusted by bringing the valve body 302 provided inside the cylindrical portion 301 of the PCV valve 300 into and out of contact with the valve seat 303. In the PCV valve 300, a plate-like heating element 304 is pressed against the partition wall 309 by a coil spring 308. Further, the heat receiving portion 306 of the heat transfer body 305 is provided so as to face the heat generating body 304 with the partition wall 309 interposed therebetween. In addition, the heat radiating portion 307 of the heat transfer body 305 is provided with an opening, and the valve body 302 is inserted into the opening. In the above configuration, when the heating element 304 and the coil spring 308 are energized by supplying current from a power source (not shown), the heating element 304 generates heat. The heat generated by the heating element 304 is conducted to the heat receiving portion 306 of the heat transfer body 305 through the partition wall 309 and further conducted to the heat radiating portion 307. The valve body 302 is heated by the heat radiating unit 307 to defrost the ice body adhering to the periphery of the valve body 302.

  By the way, the PTC heater shown in FIG. 13 transfers the heat generated in the heating element 304 to the heat receiving part 306 via the partition 309 in order to heat the ice body in the vicinity of the heat radiating part 307. There is not much loss. Therefore, it takes time for the ice body to thaw as compared with the power consumption, which is not preferable in terms of energy efficiency. As described above, the problem caused by the separation of the ice body to be heated and the heating element occurs not only in a device equipped with a drain but also in a valve such as a PCV valve.

Japanese Patent Application Laid-Open No. 2014-042681 Japanese Patent Laid-Open No. 11-148151 Japanese Patent Laying-Open No. 2015-124611

  In order to solve the above-described problems, an object of the present invention is to rapidly melt an ice body by directly heating the ice body with a heating target.

  According to the first aspect of the present invention, the heating target provided inside the equipment formed to allow fluid to flow therein, the outside of the equipment, and provided at a position near the heating target. In the thawing apparatus having an induction heating coil for generating a magnetic field by a high frequency current and a drive circuit for applying the high frequency current to the induction heating coil, the heating target is provided with a first configuration for generating heat. A thawing device comprising a member and a second constituent member provided for heat transfer, wherein the first constituent member and the second constituent member are made of different metal materials.

  According to a second aspect of the present invention, in the first aspect of the present invention, the first component member is disposed in the vicinity of the induction coil and bears a heat generation function due to eddy current generation caused by electromagnetic induction. The component 2 is disposed in a place where the ice body inside the equipment is likely to be generated, and has a heat transfer function for further transferring the heat transferred from the first component to the surroundings. Device.

  The invention according to claim 3 is the invention according to claim 2, wherein the first component member is made of stainless steel, and the second component member is made of aluminum or an aluminum alloy. A thawing device.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the first component member and the second component member are joined to each other, or The thawing device is provided so as to be in contact with each other.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the front second component member is in the vicinity of a member movably provided inside the device. Is a decompression device.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the second component member is formed of a drain liquid flowing into a drain main body provided in the device. A thawing device having a function related to discharge.

  The invention according to claim 7 is the invention according to claim 6, wherein the second constituent member is partly or wholly provided inside the drain body part and stays in the drain body part. The thawing device is configured as a valve seat that prevents the drain liquid from flowing backward from the drain main body portion by contacting the valve body that is floated by the liquid.

  The invention according to an eighth aspect is the invention according to the seventh aspect, further comprising aluminum or an aluminum alloy, inside the first component member, and on an inner peripheral surface of the first component member. A thawing device, which is provided so as to abut, and has a float guide member that guides the valve body so as to correctly abut against the valve seat when the valve body floats. .

  The invention according to claim 9 is the invention according to any one of claims 1 to 5, wherein the second component member is in contact with a valve body or a valve seat provided inside the device. The thawing device is characterized by being configured as described above.

  According to the first aspect of the present invention, the first component member provided for heat generation and the second component provided for heat transfer are provided inside the equipment formed to allow fluid to flow therethrough. Since the heating target provided with the member is provided, the ice body formed inside the device and its peripheral members can be thawed reliably.

  According to the second aspect of the present invention, the heat generated in the first component can be quickly transferred to the ice body via the second component, so that the ice body can be thawed quickly. become.

  According to the third aspect of the present invention, the exothermic property of the first component member and the heat transfer property of the second component member can be enhanced, and as a result, the ice body can be thawed quickly.

  According to the fourth aspect of the present invention, the heat transfer from the first component member to the second component member can be improved.

  According to the fifth aspect of the present invention, since the movable member is quickly heated by the second component member, the ice body adhering to the movable member is rapidly thawed. Can do.

  According to the invention described in claim 6, since the second component member has a function related to the drain liquid discharge, the other component having the function can be replaced with the second component member. The occurrence of a problem that the flow path of the drain liquid cannot be secured can be prevented by coexisting the other component having the second component and the second component.

  According to the seventh aspect of the invention, since the second component member also serves as the valve seat, the ice body attached to the valve seat can be quickly thawed.

  According to the eighth aspect of the present invention, heat is easily transferred from the first component member to the float guide member, so that ice bodies attached to the float guide member can be quickly thawed.

  According to invention of Claim 9, even if it is a case where a 2nd structural member cannot be utilized as a valve seat, the ice body around a valve body or a valve seat can be thawed rapidly.

It is sectional drawing which shows the outline of the drain provided with the thawing | decompression apparatus which concerns on the 1st Embodiment of this invention, and an oil separator. It is sectional drawing which shows the heating target of the thawing | decompression apparatus which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the decompression | decompression apparatus which concerns on the 1st form of this invention. It is sectional drawing which shows the state by which the ice body was produced | generated inside the drain main-body part. It is sectional drawing which shows the outline of the drain provided with the thawing | decompression apparatus which concerns on the 2nd Embodiment of this invention, and an oil separator. It is sectional drawing which shows the state which excluded the valve body and the float from the drain provided with the thawing | decompression apparatus which concerns on the 2nd Embodiment of this invention. It is sectional drawing which shows the heating target of the thawing | decompression apparatus which concerns on the 2nd Embodiment of this invention. The 2nd structural member in the heating target of the 2nd Embodiment of this invention is shown, (a) is a front view, (b) is a top view. The 3rd structural member in the heating target of the 2nd Embodiment of this invention is shown, (a) is BB sectional drawing, (b) is a top view. It is sectional drawing which shows the outline of the drain provided with the thawing | decompression apparatus which concerns on the 3rd Embodiment of this invention, and an oil separator. It is sectional drawing which shows the oil separator which concerns on a prior art. It is sectional drawing which shows the installation state of the thawing | decompression apparatus using the electromagnetic induction which concerns on a prior art. It is sectional drawing which shows the PCV valve provided with the thawing | decompression apparatus using the PTC heater which concerns on a prior art.

  The thawing device according to the first embodiment of the present invention will be described. FIG. 1 is a sectional view schematically showing a drain and an oil separator provided with a thawing device according to a first embodiment of the present invention. In FIG. 1, 20 is a drain constituent part, 21 is a peripheral side part, 22 is an inclined surface part, 23 is a discharge pipe, 23a is an inner peripheral face, 24 is a drain body part, 30 is an oil separator constituent part, and 31 is a peripheral side part. , 32 is a bottom surface portion, 32a is an inner peripheral surface, 33 is a drain cap, 34 is a valve body, 35 is a disk-shaped portion, 36 is a support shaft portion, 41 is a first component member, 41a is an inner peripheral surface, 42 Is a second component member, 43 is a valve seat, 43a is an upper surface, 44 and 47 are peripheral side portions, 48 is an inclined surface portion, 49 is a discharge pipe portion, 49a is an inner peripheral surface, 90 is a power supply / control unit, 91 Is an induction heating coil, and 92 is a temperature sensor. FIG. 2 is a cross-sectional view showing a heating target of the thawing apparatus according to the first embodiment of the present invention. In FIG. 2, 40 is a heating target, 43b is a lower surface, 45a and 45b are openings, 46 is a third component, and the other symbols are the same as those in FIG. In addition, FIG. 3 is a block diagram showing the configuration of the decompression device according to the first embodiment of the present invention. In FIG. 3, 10 is a mounting target device, 93 is a decompression device, 94 is a controller, 95 is a drive circuit, 96 is a resonance capacitor, 97 is a device control unit, and 98 is a display unit. Show things. FIG. 4 is a cross-sectional view showing a state where ice bodies are generated inside the drain main body. In FIG. 4, reference numerals 25, 26 and 27 denote ice bodies, and other reference numerals are the same as those in FIG.

  First, the overall configuration of the thawing apparatus according to the first embodiment and the components other than the heating target will be described. As shown in FIG. 3, the decompression device 93 is mounted on the mounting target device 10 such as a passenger car or a truck. That is, it is mounted in the vicinity of the drain constituent part 20 provided integrally with the oil separator constituent part 30 which is a device functioning as an oil separator for blow-by gas. Further, in other embodiments such as the second embodiment described below, the description will be made assuming that the thawing device is mounted on a drain provided integrally with an oil separator such as a passenger car or a truck. The thawing device according to the present invention is not limited to the drain provided in a passenger car or truck, but is an air conditioning facility, a hot water supply facility, a drainage facility, a boiler, or a liquid of a building such as a house. The present invention is also applicable to a drain provided in a liquid flow path, such as a product production machine. Further, the present invention can be preferably applied to various valves such as the PCV valve according to the prior art shown in FIG. 14 that has no drain and in which the convection liquid may freeze. However, it is a condition that the heating target can be arranged inside the structure, and at least the induction heating coil and the temperature sensor can be arranged in the vicinity of the heating target. That is, the thawing device according to the present invention is a drain that collects various liquids, and can be used for a device that can secure a space for arranging the induction heating coil and the temperature sensor along the outer peripheral surface of the drain main body. It can be widely applied regardless.

  Moreover, as shown in FIG. 1, the thawing device 93 arranges the heating target 40 shown in FIG. 2 inside the drain component 20 provided integrally with the oil separator component of the mounting target device 10. An induction heating coil 91 and a temperature sensor 92 are provided so as to be positioned around the drain constituting unit 20 and in the vicinity of the heating target 40. The induction heating coil 91 is arranged to be as close as possible to the heating target 40 in order to maximize the eddy current generated in the heating target 40 by excitation. That is, the induction heating coil 91 is in contact with the peripheral side surface portion 21 of the drain main body 24 that is in contact with the first component member 41 so as to surround the first component member 41 of the heating target 40 from the outside. It is provided so that it may touch almost. The resonance capacitor 96 constitutes a resonance circuit together with the induction heating coil 91, and is desirably arranged in the vicinity of the induction heating coil 91, but is not a component with a particularly limited arrangement. The shape of the induction heating coil is not limited to the cylindrical shape as shown in FIG. 1, and is outside the equipment such as the drain main body 24 and in the vicinity of the first component member 41. If provided, the shape may be a conical shape, a planar circular spiral, a planar rectangular spiral, or the like. For example, in the case of the PCV valve according to the prior art shown in FIG. 14, various shapes of coils such as a flat circular spiral coil can be applied above the heat transfer body 305.

  The temperature sensor 92 is provided above or below the induction heating coil 91 and close to the induction heating coil 91. Since the heating target 40 is inside the drain main body 24 or the like, the temperature sensor 92 outside the drain main body 24 or the like cannot be directly attached. Therefore, the temperature sensor 92 is affixed to the outer peripheral surface of the portion of the drain main body 24 that is in contact with the heating target 40 so that the measured value of the temperature as close as possible to the actual temperature of the heating target 40 can be obtained. . Two or three or more temperature sensors may be provided.

  The power source / control unit 90 includes a controller 94 and a drive circuit 95 as shown in FIG. The controller 94 performs predetermined control according to a signal from the temperature sensor 92 based on setting information in a memory (not shown). For example, when the temperature sensor 92 detects a rapid temperature rise exceeding the allowable limit, control is performed such as turning off the drive circuit 95 and stopping the heat generation of the induction heating coil 91. Further, when an abnormal situation occurs, the device control unit 97 of the mounting target device 10 is notified so that the notification content can be displayed on the display unit 98. The drive circuit 95 generates a high-frequency current that heats the induction heating coil 91. Further, unlike the induction heating coil 91, the arrangement of the power source / control unit 90 is not particularly limited. The power supply / control unit 90 shown in FIG. 3 is merely an example of an embodiment of the present invention, and the circuit configuration of the power supply / control unit in the present invention is not limited to this. For example, the device control unit 97 may execute part or all of the functions of the controller 94.

  Further, the configuration of the decompression device 93 and its surroundings will be described. As shown in FIG. 1, the mounting target device 10 collects oil separated from blow-by gas by the oil separator component 30 for separating oil from blow-by gas and the oil separator component 30 to discharge the oil to the outside. The drain component 20 is provided. Further, the oil separator component 30 and the drain component 20 are integrally provided by a resin container serving as an outer shell. Further, the oil separated from the blow-by gas by a filter (not shown) drops on or adheres to the peripheral side surface portion 31 of the oil separator component 30 and the inner peripheral surface 32a of the bottom surface portion 32, and then stays on the bottom surface portion 32. Go. When the surface of the oil remaining in the bottom surface portion 32 exceeds the upper end portion of the drain cap 33, the oil further flows down into the drain main body portion 24 of the drain component portion 20 through the second component member 42.

  The drain constituting part 20 is made of resin and includes a drain main body part 24 and a discharge pipe 23. The drain main body portion 24 extends vertically downward from the center of the bottom surface portion 32 of the oil separator component portion 30, and continuously extends from the peripheral side surface portion 21 formed in a cylindrical shape and the lower end portion of the peripheral side surface portion 21. And an inclined surface portion 22 formed in an inverted truncated cone shape. The discharge pipe 23 is formed to extend further vertically downward from the center of the inclined surface portion 22, and discharges oil that has flowed into the drain main body portion 24 to the outside. In addition, although the oil discharged | emitted outside is sent into an oil tank via the tube for sending out, the structure of the part which is not shown in figure is not limited to a specific structure.

  Further, the drain component 20 is provided with a valve body 34 inside the drain body 24. The valve body 34 includes a disk-shaped portion 35 and a support shaft portion 36, and prevents oil from flowing back from the drain main body portion 24 to the oil separator constituting portion 30. That is, when the upper surface of the oil stored in the drain main body 24 rises, the disc-like portion 35 rises due to fluid pressure or buoyancy, but rises to a point where the disc-like portion 35 comes into contact with the second component 42. The disk-like portion 35 is closed at the opening between the oil separator component 30 and the drain main body 24. The support shaft portion 36 is movably supported with respect to the second component member 42 and guides the ascending or descending of the disc-like portion 35. In this embodiment, the oil separator component 30 and the drain component 20 are integrated, but, for example, the drain component 20 is screwed into the oil separator component 30 so as to be integrated. Also good. Further, when the check valve is provided in the external device not shown in FIG. 1 or when the check valve is not required, the valve body 34 may not be provided.

  Next, the heating target 40 will be described with reference to FIG. The heating target 40 is thawed so that water droplets generated by condensation are prevented from freezing inside the drain main body 24 or the discharge pipe 23 and further inside the oil separator component 30 and inhibiting the flow of oil and blow-by gas. It plays a core role in the purpose of the device. In other words, in order to eliminate as soon as possible the situation where ice bodies such as the drain main body 24 fix the check valve or block the discharge pipe, the heat generation component and the heat transfer component Two types of constituent members are provided. Thus, in the present invention, the ice body can be quickly thawed by effective heating, so that the energization to the induction heating coil 91 can be stopped in a shorter time and is in contact with the heating target 40, or Since it is possible to prevent the drain main body 24, the valve body 34, and the like disposed at very close positions from being excessively heated, power consumption can be reduced and safety can be ensured. In addition, although it is possible to configure one component member for heat generation and one component for heat transfer, one component member for heat transfer is used in this embodiment. For the purpose of combining the functions of other members provided inside the drain main body 24 as provided separately, the number and range of regions where water droplets freeze, or the manufacturing cost of the heating target Two or three or more may be provided in consideration of reducing the above. In other words, in the present invention, it is only necessary to provide at least one of two types of constituent members for the purpose of heat generation and heat transfer.

  The heating target 40 of this embodiment includes a first component member 41, a second component member 42, and a third component member 46. The first component 41 is a component intended to generate heat and is formed in a substantially cylindrical shape. The first component member 41 is made of stainless steel because it has a relatively high electrical resistivity and high heat conversion efficiency with respect to the generated eddy current. The first component member 41 may be made of another material having a relatively high electrical resistivity such as iron. Moreover, what gave rust prevention plating, such as zinc and nickel, with respect to the substantially cylindrical-shaped material which consists of iron may be sufficient. That is, the first component member 41 may be plated regardless of a single metal or alloy as long as high thermal conversion efficiency can be obtained with respect to the generated eddy current. The first component member 41 is preferably formed in a simple substantially cylindrical shape because of the use of a material with a relatively high processing cost, but the shape is not limited to a substantially cylindrical shape. Further, it can be appropriately changed according to the shape of the drain main body.

  Further, in the first component member 41, the second component member 42 and the third component member 46 are lightly press-fitted to the inner peripheral surface 41a side. By lightly press-fitting the second component member 42 and the third component member 46, the surfaces of the first component member 41, the second component member 42, and the third component member 46 are reliably in contact with each other and heat is generated. It becomes easier to communicate. In addition, there is an advantage that it is possible to prevent the second component member 42 or the third component member 46 from being detached due to vibration generated in the mounting target device 10. The second component member 42 or the third component member 46 is slightly inferior in heat transfer, but is fixed to the first component member 41 with a resin sheet such as polyimide or an adhesive. Also good. Further, in order to more securely fix the second component member 42 or the third component member 46 to the first component member 41, the second component member 42 or the third component member 46 is fixed by screwing into the first component member 41 or a screw. You may make it fix by.

  As shown in FIG. 1, the first constituent member 41 has an upper end located slightly above the upper end of the induction heating coil 91 in the vertical direction, that is, the direction in which gravity acts, and the lower end. Is located slightly below the lower end of the induction heating coil 91. As a first reason, when a high-frequency current flows through the induction heating coil 91, a strong excitation force acts on the side of the induction heating coil 91. Therefore, the upper end portion of the first component member 41 is positioned at or near the upper end portion of the induction heating coil 91 and the lower end portion thereof is positioned at or near the lower end portion of the induction heating coil 91 in the vertical direction. If it forms, it can utilize the exciting force of the induction heating coil 91 to the maximum. In other words, when the upper end portion of the first component member 41 is located below the upper end portion of the induction heating coil 91 and the lower end portion is located above the upper end portion of the induction heating coil 91, This means that the exciting force of the induction heating coil 91 is not utilized to the maximum extent. Further, in the vertical direction, the upper end portion of the first component member 41 is located slightly above the upper end portion of the induction heating coil 91 and the lower end portion is located slightly below the lower end portion of the induction heating coil 91. Similar effects can be obtained. As a second reason, as the distance from the induction heating coil 91 increases, the excitation force becomes weaker and the heat generation efficiency is lowered, so that the heating effect is reduced. At this time, the first component member 41 having good heat generation efficiency is not necessarily good in heat transfer efficiency, and it cannot be said that effective heating is always performed in a place where the heat generation efficiency is deteriorated. It is meaningless to make the first component 41 extremely large with respect to 91.

  On the other hand, as shown in FIG. 2, the second component member 42 is a component member for the purpose of heat transfer, and is formed in a substantially bottomed cylindrical shape. The second constituent member 42 is made of an aluminum alloy because it has a high thermal conductivity and heat is transmitted quickly. The second component member 42 may be made of another material having a high thermal conductivity such as copper or a copper alloy. Alternatively, a substantially bottomed cylindrical material made of copper or the like may be subjected to so-called bump plating, in which aluminum is melted and covered. Furthermore, an aluminum alloy, a copper alloy, or the like may be molded into a predetermined shape by pressing. In addition, when it is not necessary to have the functions described later, a thin plate material of aluminum or copper may be formed into a predetermined shape by using a kenken mold or the like.

  The second component member 42 has not only a function for thawing ice bodies but also a part of the function of a check valve. That is, the second component member 42 is formed with the valve seat portion 43 so as to close the upper end portion of the substantially cylindrical peripheral side surface portion 44. The valve seat portion 43 is formed in a substantially disc shape, and further includes four openings, two openings, an opening 45a and an opening 45b, and two openings that do not appear in the cross section of FIG. Has been. As described above, when the upper surface of the oil stored in the drain main body 24 rises, the disc-like portion 35 rises due to the oil pressure and buoyancy, so that the disc-like portion 35 becomes the valve seat portion. When abutting against the lower surface 43b of 43, the opening 45a and the opening 45b and the other two openings are closed, and oil is prevented from flowing back from the lower surface 43b side to the upper surface 43a side of the valve seat portion 43.

  As described above, the second constituent member 42 is a constituent member for heat transfer, but uses a material that is easy to cut or punch, such as an aluminum alloy or a copper alloy. By forming it in the shape of the valve seat of the check valve, it also has the second purpose. For example, when the thawing device 93 is retrofitted to an existing drain, it is intended only for heat transfer and may be formed in a simple cylindrical shape. Further, for example, when an ice body is not generated above the first component 41 due to the influence of waste heat generated from other components of the mounting target device 10, the first component 41 and the third component Only the member 46 may be provided (in this case, the third component member 46 is positioned as defined as "second component member" in claims 1 and 2).

  The third component member 46 includes a substantially cylindrical peripheral side surface portion 47, an inclined surface portion 48 extending downward from the lower end portion of the peripheral side surface portion 47 and formed in a substantially inverted truncated cone shape, and an inclined surface portion 48. A discharge pipe portion 49 that extends and is formed in a substantially cylindrical shape is provided. The third component member 46 is formed of an aluminum alloy because it has a high thermal conductivity and heat is transmitted quickly, like the second component member 42. The third constituent member 46 only needs to be formed of a material having a high thermal conductivity, and the same material as that of the second constituent member 42 may not be used. The peripheral side surface portion 47 is a portion that is lightly press-fitted into the inner peripheral surface 41 a side of the first component member 41. The inclined surface portion 48 is formed in accordance with the inclination of the inclined surface portion 22 of the drain main body portion 24. In addition, what is necessary is just to form this part so that it may correspond to the shape of the internal peripheral surface of the drain main-body part 24, and it is not necessary to incline it. The discharge pipe portion 49 is a portion provided inside the discharge pipe 23 and is formed in an elongated and substantially cylindrical shape. The discharge pipe 23 has a relatively small diameter, but the discharge pipe portion 49 is thin and is provided so as to be in contact with the inner peripheral surface 23a as a whole, and therefore the diameter of the inner peripheral surface 23a. And the diameter of the inner peripheral surface 49a are small, so that the oil flow is not hindered. In addition, when there is no possibility that water or oil inside the discharge pipe 23 is frozen, the entire discharge pipe portion 49 or the third component member 46 may be omitted.

  Further, the first component member 41, the second component member 42, and the third component member 46 described above are not strongly pressed into the drain main body 24. Therefore, for example, it is conceivable that the first constituent member 41 is lifted by the vibration generated in the mounting target device 10, and the second constituent member 42 and the third constituent member 46 are detached. Therefore, in order to prevent such separation, the drain cap 33 shown in FIG. 1 prevents the separation. That is, the drain cap 33 is made of resin, and is press-fitted into the drain main body 24 while pressing the first component member 41 from above, so that the first component member 41 is prevented from being lifted. The heating target is not limited to the first constituent member 41, the second constituent member 42, and the third constituent member 46 described above. For example, the heating target may be a PCV valve according to the prior art shown in FIG. For example, the thawing device of the present invention can be preferably applied by forming a rectangular plate like the heat transfer body 305 and arranging the heating target in contact with or very close to the valve body 302. .

  As described above, the thawing device 93 according to the first embodiment of the present invention includes the first component member 41 provided in the drain main body 24 for heat generation, the drain main body 24 and the periphery thereof. Since the heating target 40 provided with the second component member 42 and the third component member 46 provided for heat transfer to the member is provided, ice bodies such as the ice bodies 25 and 26 in FIG. Can be thawed. Furthermore, since the heat generated in the first component 41 can be quickly transmitted to the ice body via the second component 42 and the third component 46, the ice body can be thawed quickly. become. Further, since the ice body can be quickly thawed by effective heating, the energization to the induction heating coil 91 can be stopped in a shorter time, and is placed in contact with the heating target 40 or at a very close position. Since it is possible to prevent the drain main body 24 and the valve body 34 being heated from being excessively heated, power consumption can be reduced and safety can be ensured.

  In addition, since the second component member 42 and the third component member 46 are in contact with the first component member 41, the first component member 41 to the second component member 42 and the third component member are in contact with each other. The heat transfer to 46 can be improved. In addition, the first component member 41 has an upper end that is positioned above the upper end of the induction heating coil 91 in the vertical direction, and a lower end that is lower than the lower end of the induction heating coil 91. Therefore, an eddy current due to excitation of the induction heating coil can be efficiently generated in the first component member 41. Furthermore, it is possible to thaw the ice produced in the oil separator component 30 provided integrally with the drain main body 24 with the second component 42. Further, since the second component member 42 has a function as a valve seat, the other component having the function can be replaced with the second component member 42. The other component having the function and the second configuration By causing the member 42 to coexist, it is possible to prevent the occurrence of a problem that the flow path of the drain liquid cannot be secured. Furthermore, since the 3rd structural member 46 is provided in the inside of the discharge pipe 23, the ice body adhering to the discharge pipe can be thawed rapidly. In addition, the first component member 41 formed of a relatively hard material has a simple shape, and the second component member 42 and the third component member 46 formed of a relatively soft material are processed into a complicated shape. Therefore, processing is easy and processing costs can be reduced. Also, is the thawing device of the present invention an equipment provided with a drain? Since the movably provided member is quickly heated by the second component member, the ice body attached to the movably provided member can be quickly thawed.

  Subsequently, a decompression device according to a second embodiment of the present invention will be described. FIG. 5 is a cross-sectional view schematically showing a drain and an oil separator provided with a thawing device according to a second embodiment of the present invention. In FIG. 5, 37 is an oil separator constituent part, 38 is a peripheral side part, 39 is a bottom part, 39a is an inner peripheral face, 50 is a drain constituent part, 51 is a peripheral side part, 52 is a bottom part, 53 is a discharge pipe, 53a is an inner peripheral surface, 54 is a support shaft, 55 is a valve body, 56 is a float, 57 is a drain cap, 61 is a first component member, 62 is a second component member, 64 is a disk-shaped portion, 65 is A valve seat part, 66 is a fitting part, 68 is a 3rd component, 69 is a disk-shaped part, 79 is a drain main-body part, The other code | symbol shows the same thing as FIG. Moreover, FIG. 6 is sectional drawing which shows the state which excluded the valve body and the float from the drain provided with the thawing | decompression apparatus which concerns on the 2nd Embodiment of this invention. In FIG. 6, 58 is a cylindrical part, 59 is a bowl-shaped part, 63 is a cylindrical part, 69a is an upper surface, 71, 72, 73 and 74 are float guide members, and other reference numerals are those shown in FIGS. Indicates the same thing. Furthermore, FIG. 7 is sectional drawing which shows the heating target of the thawing | decompression apparatus based on the 2nd Embodiment of this invention. In FIG. 7, 60 is a heating target, 61a is an inner peripheral surface, 64a is an opening, 64b is an inclined surface, 64c and 64d are openings, 67 is a bowl-shaped portion, 67a is a stepped surface, 70 is a bowl-shaped portion, 70a Is a step surface, 71a is an inclined surface, 71b is a float receiving surface, 72a is an inclined surface, 72b is a float receiving surface, 73a is an inclined surface, 73b is a float receiving surface, 74a is an inclined surface, 74b is an inclined surface, and 75 is a float receiving surface. The discharge pipe portion 75a is an inner peripheral surface, and the other reference numerals are the same as those in FIGS. In addition, FIG. 8 shows a second component member in the heating target according to the second embodiment of the present invention, wherein (a) is a front view and (b) is a plan view. In FIG. 8, 64e, 64f, 64g, 64h, 64i, and 64j are openings, and other reference numerals are the same as those in FIGS. FIGS. 9A and 9B show a third constituent member of the heating target according to the second embodiment of the present invention, where FIG. 9A is a cross-sectional view taken along the line BB and FIG. 9B is a plan view. 9, 76 and 77 are float guide members, 77a is an inclined surface, 77b is a float receiving surface, 78 is a float guide component, and other reference numerals are the same as those in FIG.

  The thawing device according to the second embodiment of the present invention aims at heat transfer between the heating target 60 and the constituent members for heat generation, similar to the heating target 40 in the thawing device of the first embodiment. Two types of constituent members, ie, constituent members, are provided. Moreover, the point which has provided the two structural members aiming at heat transfer is the same. That is, the heating target 60 includes a first component member 61, a second component member 62, and a third component member 68 as shown in FIG. The first component 61 is a component intended to generate heat and is formed in a substantially cylindrical shape. Further, the first component member 61 is made of stainless steel like the first component member 41. The first component member 61 may be made of another material having a relatively high electrical resistivity, such as iron, and rust-proof plating such as zinc or nickel is applied to a substantially cylindrical material made of iron. It may be what you did. Furthermore, it is the same as the heating target 40 in that the second component member 62 and the third component member 68 are lightly press-fitted to the inner peripheral surface 61 a side of the first component member 61. Therefore, the first component member 61 is in contact with the peripheral side surface portion 51 of the drain main body portion 79. In addition, although the shape of the drain structure part 50 differs in each part from the thing of the thawing | decompression apparatus which concerns on 1st Embodiment, there is no functional difference in particular.

  The second constituent member 62 is a constituent member for the purpose of heat transfer, and also has a role as a member of a valve seat of the check valve. That is, as shown in FIGS. 7 and 8, the second component member 62 is formed in a short substantially cylindrical shape and is lightly press-fitted into the first component member 61. A disc-shaped portion 64 formed to close the upper end, a cylindrical portion 63 having a diameter smaller than that of the fitting portion 66 and projecting upward from the disc-shaped portion 64; and A valve seat portion 65 formed like a partition wall between the fitting portion 66 and the cylindrical portion 63 is provided. The cylindrical portion 63 is surrounded and protected by the cylindrical portion 58 of the drain cap 57. Further, the second component member 62 is firmly fixed to the drain main body 79 by lightly press-fitting the hook-shaped portion 59 of the drain cap 57 into the drain main body 79. The disk-shaped part 64 has a slightly larger diameter than the fitting part 66, and its peripheral part is formed as a flange-like flanged part 67. The step surface 67 a of the hook-shaped portion 67 defines a press-fitting depth when the fitting portion 66 is lightly press-fitted into the first component member 61. As shown in FIG. 8 (b), the valve seat 65 has an opening 64a at the center, and further, the openings 64c, 64d, 64e, 64f, 64g, 64h, 64i and so on surround the opening 64a. 64j is formed. Normally, the oil dripped onto the inner peripheral surface 39 a of the bottom surface portion 39 convects to the bottom surface portion 39, but flows down to the drain main body portion 79 when the height exceeds the cylindrical portion 58.

  As shown in FIG. 5, a support shaft 54 that is provided integrally with the valve body 55 that moves in the vertical direction in conjunction with the vertical movement of the float 56 is inserted into the opening 64 a. That is, when the support shaft 54 is inserted into the opening 64a, the support shaft 54 moves in the vertical direction while being guided by the opening 64a. Since the movement of the valve body 55 is restricted by the support shaft 54, the valve body 55 moves only in the vertical direction without shifting in the horizontal direction. Further, the lower side of the opening 64a is formed as a substantially truncated cone-shaped inclined surface 64b so as to guide the tip of the support shaft 54. Since the openings 64c, 64d, 64e, 64f, 64g, 64h, 64i, and 64j are closed by the valve body 55 when the valve body 55 rises and comes into contact with the valve seat 65, the oil is supplied to the drain main body 79. Is prevented from flowing back to the oil separator component 37.

  As shown in FIGS. 7 and 9, the third component member 68 is a portion that forms a float guide component 78, and float guide members 71, 72, 73 extending upward from the disk-shaped portion 69. , 74, 76 and 77, and a discharge pipe portion 75 extending downward from the disk-like portion 69. Furthermore, the third component member 68 is made of an aluminum alloy because it has a high thermal conductivity and heat can be transferred quickly, similarly to the third component member 46 of the first embodiment. The disc-shaped portion 69 is a portion that becomes a base of the third component member 68, and is provided in contact with the bottom surface portion 52 of the drain main body portion 79 as shown in FIG. 5. Further, as shown in FIG. 7, the disk-like portion 64 is formed as a flange-like flange portion 70 having a lower peripheral edge portion. The stepped surface 70 a of the bowl-shaped portion 70 defines a press-fitting depth when the float guide members 71, 72, 73, 74, 76 and 77 are lightly press-fitted into the first component member 61. As shown in FIG. 5, the discharge pipe portion 75 is provided in a state of being inserted into the discharge pipe 53. Further, since the discharge pipe portion 75 is thin and provided so as to be in contact with the inner peripheral surface 53a of the discharge pipe 53, the diameter of the inner peripheral surface 53a and the inner peripheral surface 75a The difference from the diameter is small and does not obstruct the oil flow.

  As shown in FIG. 9B, the float guide members 71, 72, 73, 74, 76, and 77 are arranged at equal intervals and facing each other. Further, as shown in FIG. 6, the float guide members 71, 72, 73, and 74 are provided so that the entire outer surface is in contact with the inner peripheral surface 61a of the first component member 61, and is illustrated in FIG. The float guide members 76 and 77 that are not in contact with the inner peripheral surface 61 a of the first component member 61 are also in contact with the entire outer surface. Therefore, heat is quickly transferred from the first component member 61 to the float guide members 71, 72, 73, 74, 76 and 77, and in the region surrounded by the float guide members 71, 72, 73, 74, 76 and 77. A certain ice body can be thawed quickly.

  As can be seen from FIG. 5, the float guide members 71, 72, 73, 74 and 77 are arranged so as to surround the float 56, and guide the float 56 so that the float moves up and down within a predetermined range. . Further, as shown in FIGS. 7 and 9A, the float receiving surfaces 71b, 72b, 73b, 74b, and 77b of the float guide members 71, 72, 73, 74, and 77 are disc-like portions in the vertical direction. The float guide member 76 (not shown) is also formed in the same manner. The purpose of this is not to prevent the oil from flowing into the discharge pipe portion 75 and to prevent the float 56 from sticking to the upper surface 69a. Further, the float guide members 7 have the inclined surfaces 71 a, 72 a, 73 a, 74 a and 77 a which are inclined downward toward the center of the disk-like part 69 in the vicinity of the upper ends thereof. The float guide member 76 (not shown) is also formed in the same manner. By forming these inclined surfaces, the valve body 55 and the like are prevented from being caught by the upper end portion of any of the float guide members.

  According to the configuration of the thawing device according to the second embodiment described above, the second component member 62 and the third component member 68 have a function related to the drainage of the drain liquid, that is, the second configuration. Since the member 62 and the third component member 68 are formed in a shape that fully functions as a component member of the check valve, other parts having the function are added to the second component member 62 and the third component member 68. By replacing the other component having the function with the second component member 62 and the third component member 68, it is possible to prevent the occurrence of a problem that the flow path of the drain liquid cannot be secured.

  Furthermore, a defrosting device according to a third embodiment of the present invention will be described. FIG. 10 is a cross-sectional view showing an outline of a drain and an oil separator provided with a thawing device according to a third embodiment of the present invention. 10, 80 is a first component member, 81 is a peripheral side surface portion, 82 is an inclined surface portion, 83 is a discharge pipe portion, and other reference numerals are the same as those in FIG.

  The thawing device according to the third embodiment of the present invention has a configuration close to that of the thawing device according to the first embodiment, but corresponds to the third component member 46 in the first embodiment. A configuration in which the first component member 80 has the peripheral side surface portion 81, the inclined surface portion 82, and the discharge pipe portion 83 without providing anything, that is, the first component member 41 and the third component in the first embodiment. The component member 46 is integrated. As shown in FIG. 2, if the third component member 46 has a relatively simple shape, ice bodies are not generated or rarely inside the discharge pipe 23. In such a case, there is no problem even if the heat conductivity of the heating target provided inside the discharge pipe 23 is slightly low. Further, even the first structural member 80 that is relatively difficult to process can be integrally formed by pressing or the like and extended to the discharge pipe if it has a simple shape. Therefore, if the configuration of the thawing device according to this embodiment is adopted, the number of parts can be reduced, and the first constituent member 80 can be formed by press-fitting the discharge pipe portion 83 of the first constituent member 80 into the discharge pipe 23. There is an advantage that it can be fixed more firmly.

  The present invention is not limited to the contents described above, for example, the second component member has a flow channel groove for discharging the drain liquid, a filter holder, a configuration having a valve holder function, and the like. The present invention can be applied to various drains without departing from the scope described in each claim.

DESCRIPTION OF SYMBOLS 10 Mounting object apparatus 20 Drain component part 21 Peripheral side surface part 22 Inclined surface part 23 Drain pipe 23a Inner peripheral surface 24 Drain body part 25 Ice body 26 Ice body 30 Oil separator constituent part 31 Peripheral side part 32 Bottom surface part 32a Inner peripheral surface 33 Drain Cap 34 Valve body 35 Disk-shaped part 36 Support shaft part 37 Oil separator constituent part 38 Peripheral side part 39 Bottom part 39a Inner peripheral face 40 Heating target 41 First constituent member 41a Inner peripheral face 42 Second constituent member 43 Valve Seat portion 43a Upper surface 43b Lower surface 44 Circumferential side surface portion 45a Opening portion 45b Opening portion 46 Third component member 47 Peripheral side surface portion 48 Inclined surface portion 49 Discharge pipe portion 49a Inner peripheral surface 50 Drain component portion 51 Peripheral side surface portion 52 Bottom surface portion 53 Discharge Pipe 53a Inner peripheral surface 54 Support shaft 55 Valve body 56 Float 57 Drain cap 58 Cylindrical part 59 Gutter part 60 Heating target 61 1st Component member 61a inner peripheral surface 62 second component member 63 cylindrical portion 64 disc-shaped portion 64a opening 64b inclined surface 64c opening 64d opening 64e opening 64f opening 64g opening 64h opening 64i opening 64j Opening portion 65 Valve seat portion 66 Fitting portion 67 Gutter-shaped portion 67a Stepped surface 68 Third component member 69 Disk-shaped portion 69a Upper surface 70 Gutter-shaped portion 70a Stepped surface 71 Float guide member 71a Inclined surface 71b Float receiving surface 72 Float Guide member 72a Inclined surface 72b Float receiving surface 73 Float guide member 73a Inclined surface 73b Float receiving surface 74 Float guide member 74a Inclined surface 74b Float receiving surface 75 Discharge pipe part 75a Inner peripheral surface 76 Float guide member 77 Float guide member 77a Inclined surface 77b Float receiving surface 78 Float guide component 79 Drain body 80 1 component member 81 peripheral side surface portion 82 inclined surface portion 83 discharge pipe portion 90 power supply / control unit 91 induction heating coil 92 temperature sensor 93 thawing device 94 controller 95 drive circuit 96 resonance capacitor 97 device control unit 98 display unit 100 ventilator 101 drain unit 102 Check valve 103 Drain port 104 Filter 105 Inflow port 106 Filter holder 201 High-frequency induction heating device 202 Water supply pipe 203 Conductive layer 204 Inner wall 205 Outer wall 206 Freezing part 300 PCV valve 301 Cylindrical part 302 Valve body 303 Valve seat 304 Heating element 305 Heat-transfer body 306 Heat-receiving part 307 Heat-radiating part 308 Coil spring 309 Partition

Claims (9)

A heating target provided inside a device formed to allow fluid to flow therein, and an induction provided at a position outside the device and in the vicinity of the heating target and generating a magnetic field by a high-frequency current In a thawing device having a heating coil and a drive circuit for applying a high-frequency current to the induction heating coil,
The heating target includes a first component member provided for heat generation, and a second component member provided for heat transfer, and the first component member and the second component member include A thawing device comprising different metal materials. The first component member is disposed in the vicinity of the induction coil, and bears a heat generation function due to eddy current generation caused by electromagnetic induction,
The second component member is disposed in a place where an ice body inside the equipment is likely to be generated, and has a heat transfer function of further transferring the heat transferred from the first component member to the periphery. The thawing device according to claim 1. The first component member is made of stainless steel,
The thawing device according to claim 2, wherein the second component member is made of aluminum or an aluminum alloy.   The said 1st structural member and the said 2nd structural member are mutually joined, or it is provided so that it may contact | connect, The Claim 1 characterized by the above-mentioned. Thawing device.   The said 2nd structural member is provided in the vicinity of the member movably provided in the inside of the said apparatus, The thawing | decompression apparatus as described in any one of Claims 1-4 characterized by the above-mentioned.   The said 2nd structural member has a function relevant to discharge | emission of the drain liquid which flowed into the drain main-body part provided in the said apparatus, The any one of Claims 1-5 characterized by the above-mentioned. The thawing device described in 1.   The second component member is partly or wholly provided inside the drain main body portion, and is brought upward from the drain main body portion by contacting the valve body that is floated by the drain liquid staying in the drain main body portion. The thawing device according to claim 6, wherein the thawing device is configured as a valve seat that prevents the drain liquid from flowing backward.   Further, the valve is made of aluminum or an aluminum alloy, is provided inside the first component member and in contact with an inner peripheral surface of the first component member, and when the valve body floats, the valve The thawing device according to claim 7, further comprising a float guide member that guides a body so as to correctly contact the valve seat.   The thawing device according to any one of claims 1 to 5, wherein the second component member is configured to contact a valve body or a valve seat provided inside the device. .

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