JP2022074741A - Temperature-type valve device, cooling device and refrigeration cycle system - Google Patents

Abstract

To reduce man-hours of assembling work by easily arranging adsorption materials in a sealed chamber, and to stabilize the control of valve-opening by optimizing temperature sensing responsiveness to a temperature change, in a temperature-type valve device having a drive actuator.SOLUTION: A temperature-type valve device 10 has a drive actuator 2 for displacing a valve body 3 according to a pressure difference between a sealed chamber 23 and a decompressed chamber 22. The opening of the valve is controlled by the drive actuator 2. A charge gas 4 is sealed into the sealed chamber 23 of the drive actuator 2, and an adsorption material 52 is installed therein, the amount of the charge gas 4 adsorbed by the adsorption material 52 to change according to the temperature. The temperature of a temperature sensing object is sensed by a flat plate part 2B1 of a lower lid 2B. The adsorption material 52 is covered as a whole by a partitioning member 51, and the adsorption material 52 is provided in contact with the flat plate part 2B1 via the partitioning member 51.SELECTED DRAWING: Figure 1

Description

The present invention relates to a temperature valve device and a cooling device, and a refrigerating cycle system, which have a drive actuator that displaces the valve body according to the pressure difference between the closed chamber and the pressure equalizing chamber and controls the valve opening degree by the drive actuator. ..

Conventionally, as a temperature type valve device, for example, there is a temperature type expansion valve disclosed in Japanese Patent Application Laid-Open No. 61-140763 (Patent Document 1). This temperature type expansion valve has a diaphragm (drive actuator) that separates the upper diaphragm chamber (sealed chamber) and the lower diaphragm chamber (pressure equalizing chamber), and a temperature sensing cylinder that communicates with the upper diaphragm chamber via a capillary tube. The gas is sealed inside the upper diaphragm chamber, the capillary tube, and the temperature-sensitive cylinder, and activated carbon (adsorbent) that adsorbs the gas is provided inside the temperature-sensitive cylinder.

Japanese Unexamined Patent Publication No. 61-140763

In the temperature type expansion valve of Patent Document 1, a wire mesh is provided at the connection portion between the temperature sensitive tube and the capillary tube to prevent the activated carbon (adsorbent) from entering the capillary tube, but the activated carbon feels. Since it is in direct contact with the inner wall of the hot cylinder, the temperature-sensitive response to temperature changes may become too fast. Therefore, in the conventional temperature type expansion valve, there is a problem that hunting tends to occur due to the sudden operation of the valve, and the control of the valve opening degree tends to become unstable.

The present invention has a drive actuator that displaces the valve body according to the pressure difference between the closed chamber and the pressure equalizing chamber, and is a temperature type valve device that controls the valve opening degree by the drive actuator. It is an object to reduce the number of assembly work by facilitating the placement of the adsorbent in (including the inside) and to stabilize the control of the valve opening by appropriately adjusting the temperature-sensitive response to the temperature change.

The temperature type valve device of the present invention is a temperature type valve device that has a drive actuator that displaces the valve body according to the pressure difference between the closed chamber and the pressure equalizing chamber, and controls the valve opening degree by the drive actuator. In the closed space including the closed chamber, which is partitioned from the outside air, an encapsulating medium is enclosed and an adsorbent that changes the amount of adsorption that adsorbs the enclosed medium according to the temperature is installed to partition the enclosed space. A temperature-sensitive portion that senses the temperature of the temperature-sensitive object is configured by a part of the partition wall, and the adsorbent is entirely covered with a partition member that allows the encapsulation medium to pass through and does not pass through the adsorbent, and the partition. It is characterized in that it is provided in thermal contact with the inner wall of the temperature sensitive portion of the closed space via a member.

At this time, a temperature valve device characterized in that the partition member is composed of a non-woven fabric is preferable.

Further, a temperature valve device characterized in that a relief portion separated from the partition wall is provided in a part of the partition member and the adsorbent is preferable.

Further, a temperature type valve device including an inlet port, a valve port, and an outlet port, wherein the pressure on the outlet port side is introduced into the pressure equalizing chamber is preferable.

The cooling device of the present invention cools a refrigerant delivery means that sends out a refrigerant to circulate the system piping, a first heat exchanger that dissipates heat from the refrigerant, a flow control valve that controls the flow rate of the refrigerant, and a cooling target. A cooling device including a second heat exchanger, characterized in that the temperature valve device is used as the flow control valve.

The refrigeration cycle system of the present invention includes a refrigerant delivery means that sends out a refrigerant to circulate the system piping, a first heat exchanger that dissipates the refrigerant, a temperature expansion valve that controls the flow rate of the refrigerant, and a cooling target. A refrigeration cycle system including a second heat exchanger for cooling, wherein the temperature valve device is used as the temperature expansion valve.

According to the temperature valve device, the cooling device, and the refrigeration cycle system of the present invention, the adsorbent is covered with the partition member, so that the adsorbent can be easily placed in the closed chamber (including the inside of the temperature sensitive cylinder), and the assembly work can be performed. The man-hours can be reduced. Further, since the adsorbent is in thermal contact with the temperature sensitive portion via the partition member, the temperature sensitive response to the temperature change does not become too fast, and the control of the valve opening degree can be stabilized.

It is a vertical sectional view of the temperature type valve device of 1st Embodiment of this invention. It is a figure which explains the operation and the enlarged vertical sectional view of the main part of the temperature type valve device of 1st Embodiment. It is a vertical sectional view of the temperature type valve device of the 2nd Embodiment of this invention. It is a plan sectional view of the adsorbent inclusion body in the temperature type valve device of 2nd Embodiment. It is a figure which shows the modification 1 and modification 2 of the charge gas sealing structure in the temperature type valve device of 2nd Embodiment. It is a figure which shows the modification 3 modification of the charge gas sealing structure in the temperature type valve device of 2nd Embodiment. It is a figure which shows the modification 4 modification of the charge gas sealing structure in the temperature type valve device of 2nd Embodiment. It is a figure which shows the main part of the cooling apparatus which used the temperature type valve apparatus of 1st Embodiment and 2nd Embodiment of this invention. It is a vertical sectional view of the temperature type valve device of the 3rd Embodiment of this invention. It is a figure which shows the main part of the refrigeration cycle system using the temperature type valve device of the 3rd Embodiment of this invention.

Next, an embodiment of the temperature valve device, the cooling device, and the refrigeration cycle system of the present invention will be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view of the temperature valve device of the first embodiment, and FIG. 2 is an enlarged vertical cross-sectional view of a main part of the temperature valve device of the first embodiment and a diagram for explaining the operation. The concept of "upper and lower" in the following description corresponds to the upper and lower parts in the drawings of FIGS. 1 to 3 and 9, and the axis L indicated by the alternate long and short dash line is the center line of the valve port 13 described later and the valve body 3. Corresponds to the moving direction of. Also, the refrigerant flows in the direction of the arrow.

As shown in FIG. 1, the temperature type valve device 10 has a metal valve housing 1, and the valve housing 1 includes a valve chamber 1R, a first port 11 connected to a primary side joint 10a, and two. A second port 12 connected to the next side joint 10b is formed. The first port 11 communicates with the valve chamber 1R, and the valve port 13 is formed between the valve chamber 1R and the second port 12. Further, in the valve housing 1, a bleed flow path 14 for communicating the valve chamber 1R and the second port 12 even when the valve port 13 is closed, and the second port 12 and the pressure equalizing chamber 22 described later are provided. A pressure equalizing path 15 that communicates is formed. Further, the valve housing 1 is formed with a guide hole 16 that opens from the second port to the pressure equalizing chamber 22 side on the axis L of the valve port 13, and the guide hole 16 has a cylindrical shape centered on the axis L. I am doing.

A valve body 3 is arranged in the valve chamber 1R, the valve port 13, the second port 12, and the guide hole 16. The valve body 3 is fitted with a clearance between the flange portion 31 arranged in the valve chamber 1R, the conical needle portion 32 arranged in the valve port 12, and the inner peripheral surface of the guide hole 16. It has an inserted working shaft 33. As a result, the valve body 3 is movably housed in the guide hole 16 in the axis L direction, and the needle portion 32 adjusts the opening degree of the valve port 13 by the movement in the axis L direction. Further, an adjusting screw 17 made of a metal member is screwed onto the upper portion of the valve housing 1, and an adjusting spring 18 is arranged between the adjusting screw 17 and the flange portion 31 of the valve body 3. ..

The drive actuator 2 configured in the lower part of the valve housing 1 constitutes a case body by a thin disk-shaped upper lid 2A and a lower lid 2B. A diaphragm 21 is provided between the upper lid 2A and the lower lid 2B. Inside the upper lid 2A, the upper space of the diaphragm 21 becomes a pressure equalizing chamber 22, and inside the lower lid 2B, the lower space of the diaphragm 21 is a closed chamber 23. It has become. The buck metal 24 is arranged in the pressure equalizing chamber 22 so as to abut on the diaphragm 21, and the operating shaft 33 of the valve body 3 is connected to the buck metal 24. A charge gas 4 (the tip of the lead wire is indicated by a white circle) is sealed in the closed chamber 23, and an adsorbent inclusion body 5 is arranged.

The charge gas 4 is filled in the closed chamber 23 via the introduction pipe 25 provided in the lower lid 2B, and after the filling, the end portion of the introduction pipe 25 is closed and sealed. Further, the charge gas 4 constitutes a "enclosed medium" which is a combination gas in which carbon dioxide is used as a main component gas and helium as a leak detection gas is mixed therein. The adsorbent inclusion body 5 contains an adsorbent 52 such as granular activated carbon in a bag-shaped partition member 51 such as a non-woven fabric. That is, the entire adsorbent 52 is covered with the partition member 51. The adsorbent 52 exhibits adsorbing / desorbing characteristics only for carbon dioxide with respect to the charge gas 4. As a result, when the charge gas 4 is cooled, the amount of adsorption increases and the pressure in the closed chamber 23 decreases, and when heated, the amount of adsorption decreases and the pressure in the closed chamber 23 increases. Has characteristics. That is, the amount of adsorption by the adsorbent 52 to adsorb the charge gas 4 changes according to the temperature.

Here, in this first embodiment, the closed chamber 23 constitutes a "closed space" partitioned from the outside air, and the lower lid 2B is referred to as a "partition wall" for partitioning the closed chamber 23 (closed space). It has become. Further, the flat plate portion 2B1 of the lower lid 2B constitutes a "temperature sensitive portion" that is in contact with the temperature sensitive target A (see FIG. 2) and senses the temperature of the temperature sensitive target A. Further, as shown in FIG. 2, the partition member 51 allows the charge gas 4 (encapsulation medium) to pass through, but acts so as not to allow the adsorbent 52 to pass through, so that the adsorbent 52 and the lower lid 2B in the closed chamber 23 pass through. It enters between the diaphragm 21 and prevents the displacement of the diaphragm 21 from being hindered. The adsorbent 52 is provided in contact with the inner wall 2B1a of the flat plate portion 2B1 of the lower lid 2B which is the temperature sensitive portion via the partition member 51. As a result, the adsorbent 52 is in thermal contact with the temperature sensitive portion.

With the above configuration, the refrigerant introduced into the primary side joint 10a flows into the valve chamber 1R from the first port 11 and equalizes from the valve chamber 1R through the bleed flow path 14, the second port 12, and the pressure equalizing passage 15. It is introduced into the compression chamber 22. Further, the refrigerant of the second port 12 flows out from the secondary side joint 10b. As a result, a predetermined refrigerant flow rate can be obtained even when the valve port 13 is fully closed.

On the other hand, when the pressure of the charge gas 4 in the closed chamber 23 rises or falls according to the sensed temperature of the flat plate portion 2B1 (temperature sensitive portion) in the lower lid 2B of the drive actuator 2, the diaphragm 21 is displaced. Then, with the displacement of the diaphragm 21, the operating shaft 33 (and the balance 24) of the valve body 3 moves in the axis L direction, and the gap between the valve port 13 and the needle portion 32 of the valve body 3, that is, the valve opening degree is increased. Change. The flow rate of the refrigerant flowing from the primary side joint 10a to the secondary side joint 10b is controlled according to the valve opening degree. By adjusting the screwing amount of the adjusting screw 17, the force with which the operating shaft 33 and the deposit 24 of the valve body 3 press the diaphragm 21 is adjusted, and the valve port is adjusted according to the pressure of the charge gas in the closed chamber 23. The pressure at which 13 begins to open can be adjusted. After adjusting the pressure, the outer peripheral portion of the upper end of the adjusting screw 17 and the fitting portion of the adjusting screw 17 on the upper inner peripheral surface of the valve housing 1 are fixed and airtightly sealed on the entire circumference by welding or the like.

FIG. 3 is a vertical cross-sectional view of the temperature valve device of the second embodiment, FIG. 4 is a plan sectional view of the adsorbent inclusion body in the temperature valve device of the second embodiment, and is the first embodiment in each of the following embodiments. The same reference numerals are added to the same members and similar elements as in the form, and detailed description thereof will be omitted. The difference between the temperature valve device 10'of the second embodiment and the first embodiment is the configuration of the drive actuator 2'. The drive actuator 2'consists of a case body with an upper lid 2A similar to that of the first embodiment and a lower lid 2B'having a shape different from that of the first embodiment. A diaphragm 21 is provided between the upper lid 2A and the lower lid 2B'. The inside of the upper lid 2A is a pressure equalizing chamber 22, and the lower space of the diaphragm 21 is a closed chamber 23'inside the lower lid 2B'. There is. The charge gas 4 is sealed in the closed chamber 23', and the adsorbent inclusion body 5', which has a different shape from that of the first embodiment, is arranged.

The lower lid 2B'has a recess 26 recessed when viewed from the outside, and an opening 26a communicating with the inside of the closed chamber 23'from the outside is formed at the inner end of the recess 26. Further, a relief portion 53'that is recessed when viewed from the outside is provided in the center of the adsorbent inner package 5', and the recess 26 of the lower lid 2B'is arranged in the relief portion 53'. The adsorbent inclusion body 5'is arranged in the closed chamber 23'. Then, the charge gas 4 is sealed in the closed chamber 23'through the opening 26a of the lower lid 2B', and the ball-shaped plug 27 is sealed by fixing by welding or the like. The adsorbent inclusion body 5'includes an adsorbent 52 such as granular activated carbon in a bag-shaped partition member 51'such as a non-woven fabric. That is, the entire adsorbent 52 is covered with the partition member 51'. The action and effect of the charge gas 4 and the adsorbent 52 are the same as those in the first embodiment. Further, the operation of the temperature valve device 10'of the second embodiment is the same as that of the first embodiment.

In this second embodiment as well, as in the first embodiment, the closed chamber 23'consists of a "closed space" separated from the outside air, and the lower lid 2B'is the closed chamber 23'(closed space). It is a "compartment wall" that divides the space. Further, the flat plate portion 2B1'around the recess 26 of the lower lid 2B'is a "temperature sensitive portion", and is a "temperature sensitive portion" that is in contact with the temperature sensitive target A and senses the temperature of the temperature sensitive target A. It is composed. Further, the partition member 51'acts so as to allow the charge gas 4 (encapsulation medium) to pass through, but not to allow the adsorbent 52 to pass through. The adsorbent 52 is provided in contact with the inner wall 2B1a'of the flat plate portion 2B1'of the lower lid 2B', which is a temperature-sensitive portion, via the partition member 51'. As a result, the adsorbent 52 is in thermal contact with the temperature sensitive portion.

Here, in FIG. 4, the virtual line (dashed-dotted line) shows a part (recessed portion 26) of the plug body 27 and the lower lid 2B', and the same applies to FIGS. 6 and 7 of the modified examples described later. In the second embodiment, since the plug 27 is located deeper than the flat plate portion 2B1'which is the "temperature sensitive portion" in the recess 26 of the lower lid 2B', the flat plate portion 2B1'contacts the temperature sensitive target A. At that time, the plug body 27 does not interfere with the temperature sensitive object A. In this example, the plug 27 is ball-shaped, but may be, for example, a cutting part having a conical portion. Further, since the recess 26 of the lower lid 2B'which is the partition wall and the relief portion 53'of the adsorbent inclusion body 5'are arranged apart from each other, the partition member 51'of the adsorbent inclusion body 5'is plugged. It is not affected by the welding heat of the body 27. Therefore, it is possible to prevent the partition member 51 ′ from being damaged by the heat during welding and the adsorbent 52 from flowing out into the closed chamber 23 ′.

FIG. 5 is a diagram showing modified examples 1 and 2 of the sealing structure of the charge gas 4 with respect to the drive actuator 2'in the second embodiment. In addition, in these modified examples 1 and 2, the same reference numerals as those of FIG. 3 are added to the elements corresponding to FIG. In the modified example 1 of FIG. 5A, a burring portion 26a1 is formed around the opening 26a in the recess 26 of the lower lid 2B', and the plug 27 is brought into contact with the burring portion 26a1. In the second modification of FIG. 5B, the recess 26'of the lower lid 2B'is tapered, and the plug 27 is brought into contact with the opening 26a'in the tapered interior.

6 and 7 are views showing modified examples 3 and 4 of the sealing structure of the charge gas 4 in the second embodiment. In the modified example 3 of FIG. 6, a recess 26 ″ is provided on the outer periphery of the bottom portion of the lower lid 2B ′, and the stopper body 27 is brought into contact with the opening 26a ″ of the recess 26 ″. Since the recess 26 ″ of the lower lid 2B ′ and the relief portion 53 ′ of the adsorbent inclusion body 5 ′ are arranged apart from each other, the partition member 51 ′ of the adsorbent inclusion body 5 ′ is the plug 27. It is not affected by the heat during welding. In the modified example 4 of FIG. 7, a part of the side portion of the lower lid 2B'is flattened into a D-cut shape, and the plug 27 is brought into contact with the flat portion. The adsorbent inclusion body 5 ″ is also formed into a D-cut shape in accordance with the shape of the lower lid 2B ′. As a result, a flat relief portion 53 ″ is formed in the adsorbent inclusion body 5 ″. In addition, the adsorbent inclusion body 5 "in the D-cut shape of FIG. 7 may be used in the modification 3 of the sealing structure, and the adsorbent inclusion body 5" may be used from the abutting (welded) portion of the plug 27. As long as the relief portions 53 ″ are separated from each other, the shape of the relief portion 53 ″ of the adsorbent inclusion body 5 ″ is not particularly limited.

FIG. 8 is a diagram showing a main part of a cooling device using the temperature valve devices 10 and 10'of the first embodiment and the second embodiment. The cooling device in FIG. 8 is a system in which a cooled refrigerant liquid is circulated by a pump to cool an object, unlike a general refrigeration cycle system in which cooling is performed by the heat of vaporization of FIG. 10 described later.

In FIG. 8, 10 and 10'are temperature valve devices of the first and second embodiments, 100 is a pump as a "refrigerant delivery means", 200 is a radiator as a "first heat exchanger", and 300 is a "first heat exchanger". It is a cooler (for example, a cold plate) as a "second heat exchanger", and these are connected in a ring shape by a pipe to form a cooling device. As described above, the temperature valve devices 10 and 10'have a diaphragm type drive actuators 2 and 2'. The primary side joint 10a of the temperature type valve device 10, 10'is connected to the outlet side pipe of the cooler 300, and the secondary side joint 10b of the temperature type valve device 10 is connected to the inlet side pipe of the radiator 200. The cooler 300 is arranged in contact with a temperature-sensitive target A (a heat-generating component such as a motor / inverter mounted on an electric vehicle or a hybrid vehicle, a CPU such as a large computer system or a server), which is a cooling target.

The radiator 200 dissipates the heat of the refrigerant (cold water, a fluorine-based inert liquid, etc.), and the refrigerant cooled by the heat dissipates to the cooler 300 by the pump 100. The refrigerant flowing out of the cooler 300 flows into the temperature valve devices 10, 10'. Then, in the temperature valve devices 10 and 10', the flow rate of the refrigerant is controlled according to the temperature of the cooler 300 sensed by the drive actuators 2 and 2', and the refrigerant flows to the radiator 200. As a result, the temperature sensitive object A (heat source) is cooled via the cooler 300.

FIG. 9 is a vertical cross-sectional view of the temperature type valve device 20 of the third embodiment, and the temperature type valve device 20 constitutes a temperature type expansion valve. The difference between the temperature valve device 20 of the third embodiment and the first embodiment is the configuration of the drive actuator 6. The drive actuator 6 constitutes a case body by the upper lid 6A and the lower lid 6B. A diaphragm 61 is provided between the upper lid 6A and the lower lid 6B, and the lower space of the diaphragm 61 inside the lower lid 6B becomes a pressure equalizing chamber 22 similar to that of the first embodiment, and the diaphragm 61 is inside the upper lid 6A. The upper space of is a closed chamber 63. Further, as in the first embodiment, the deposit 24 is arranged in the pressure equalizing chamber 22 so as to abut against the diaphragm 21, and the operating shaft 33 of the valve body 3 is connected to the deposit 24. ..

The first closed chamber 63 of the drive actuator 6 is connected to the tubular temperature-sensitive cylinder 8 by a capillary tube 7. The inside of the temperature sensitive cylinder 8 is a second closed chamber 81, and the charge gas 4 is sealed in the closed chamber 81, and the adsorbent inclusion body 9 is arranged in the closed chamber 81. The charge gas 4 is filled in the second closed chamber 81 via an introduction pipe 82 provided at the end of the temperature sensitive cylinder, and after the filling, the end of the introduction pipe 82 is closed and sealed. As a result, the charge gas 4 is filled in the second closed chamber 81 of the temperature sensitive cylinder 8, the inside of the capillary tube 7, and the first closed chamber 63 of the drive actuator 6. The adsorbent inclusion body 9 disposed inside the temperature sensitive cylinder 8 contains an adsorbent 92 such as activated carbon in a bag-shaped partition member 91 such as a non-woven fabric. That is, the entire adsorbent 92 is covered with the partition member 51'. The action and effect of the charge gas 4 and the adsorbent 92 are the same as those in the first embodiment.

Here, in the third embodiment, the "closed space" in which the first closed chamber 63 of the drive actuator 6, the inside of the capillary tube 7, and the second closed chamber 81 of the temperature sensing cylinder 8 are separated from the outside air. The outer wall of the upper lid 6A, the capillary tube 7, and the temperature sensing tube 8 is a "partitioning wall" that partitions the enclosed space. Further, the outer wall of the temperature sensing cylinder 8 constitutes a "temperature sensing portion" that is in contact with a later-described evaporator outlet pipe (see FIG. 10), which is a temperature sensing target, and senses the temperature of the evaporator outlet piping. There is. Further, the partition member 91 allows the charge gas 4 (encapsulation medium) to pass through as in the first embodiment, but acts so as not to allow the adsorbent 92 to pass through, so that the adsorbent 92 enters the capillary tube 7 and the adsorbent tube enters the capillary tube 7. Prevents the inner diameter of 7 from being blocked. The adsorbent 92 is provided in contact with the inner peripheral surface of the side wall of the temperature sensitive cylinder 8 which is a temperature sensitive portion via the partition member 91. As a result, the adsorbent 92 is in thermal contact with the temperature sensitive portion.

With the above configuration, when the pressure of the charge gas 4 in the closed chamber 81, the inside of the capillary tube 7 and the closed chamber 63 of the drive actuator 6 increases or decreases according to the sensed temperature of the outer wall of the temperature sensitive cylinder 8, the diaphragm 61 is displaced. Displace. Then, with the displacement of the diaphragm 61, the operating shaft 33 (and the balance 24) of the valve body 3 moves in the axis L direction, and the gap between the valve port 13 and the needle portion 32 of the valve body 3, that is, the valve opening degree is increased. Change. The flow rate of the refrigerant flowing from the primary side joint 10a to the secondary side joint 10b is controlled according to the valve opening degree.

In FIG. 10, 20 is a temperature valve device according to a third embodiment, 400 is a compressor as a “refrigerant delivery means”, 500 is a condenser as a “first heat exchanger”, and 600 is a “second heat exchanger”. These are the evaporators, which are connected in a ring shape by piping to form a refrigeration cycle system. The primary side joint 10a of the temperature type valve device 20 is connected to the outlet side pipe of the condenser 500, and the secondary side joint of the temperature type valve device 20 is connected to the inlet side pipe of the evaporator 600. The evaporator 600 is arranged in an air conditioner or a room atmosphere for refrigeration, which is a cooling target, and a temperature sensitive cylinder 8 is attached to an outlet side pipe of the evaporator 600.

The compressor 400 compresses the refrigerant flowing through the refrigeration cycle system, and the compressed refrigerant is condensed and liquefied by the condenser 500 and flows into the temperature valve device 20. The temperature valve device 20 is an expansion valve, and the inflowing refrigerant is depressurized (expanded) and flows into the evaporator 600. The evaporator 600 evaporates and vaporizes the refrigerant, and the vapor phase refrigerant is circulated to the compressor 400 via an accumulator or the like (not shown). Then, the evaporator 600 absorbs heat from a heating element, air, or the like by evaporating and vaporizing the refrigerant. This cools the heating element, air, and the like.

The embodiments of the present invention have been described in detail with reference to the drawings, and other embodiments have also been described in detail. However, the specific configuration is not limited to these embodiments, and the present invention is not limited to these embodiments. It is included in the present invention even if there is a design change or the like within a range that does not deviate from the gist.

For example, the partition member 51 may use a mesh such as SUS or resin in addition to the non-woven fabric, or may be used in combination thereof. However, since the non-woven fabric has flexibility as compared with the case of the mesh, it is easy to obtain a free form. Therefore, it is desirable that the adsorbent inclusion body includes a non-woven fabric as a partition member. Further, as the adsorbent 52, in addition to the granular activated carbon, activated carbon as a molded body, ceramic as a granular or molded body, or the like may be used. Further, in the present embodiment, the adsorbent inclusion body 5 (5', 5 ") is in direct contact with the temperature sensitive portion to be thermally contacted, but the temperature sensitive response to the temperature change is further controlled by the control of the system. If you want to delay it, insert a metal plate, resin sheet, etc. between the temperature sensitive part and the adsorbent inclusion body 5 (5', 5 ") and make indirect contact through other members to heat it. It is preferable to bring it into contact with.

1 Valve housing 1R Valve chamber 10a Primary side joint 10b Secondary side joint 11 1st port 12 2nd port 13 Valve port 2 Drive actuator 2A Upper lid 2B Lower lid 2B1 Flat plate 21 Diaphragm 22 Pressure equalizing chamber 23 Sealed chamber 24 Axis 3 Valve body 4 Charge gas 5 Adsorbent inclusion body 51 Partition member 52 Adsorbent 10 Temperature valve device 2 ′ Drive actuator 2B ′ Lower lid 23 ′ Sealed chamber 26 Recess 5 ′ Adsorbent inclusion body 51 ′ Partition member 53 ′ Part 5 ″ Adsorbent inclusion body 53 ″ Relief part 10 ′ Temperature valve device 2B1 ′ Flat plate part 100 Pump 200 Radiator 300 Cooler 6 Drive actuator 6A Upper lid 6B Lower lid 61 Diaphragm 63 First closed chamber 7 Capillary tube 8 Temperature sensitive Cylinder 81 2nd closed chamber 9 Adsorbent inclusion body 91 Partition member 92 Adsorbent 20 Temperature valve device 400 Compressor 500 Condenser 600 Evaporator

Claims (6)

It is a temperature type valve device that has a drive actuator that displaces the valve body according to the pressure difference between the closed chamber and the pressure equalizing chamber, and controls the valve opening degree by the drive actuator.
An encapsulating medium is enclosed in the enclosed space that is partitioned from the outside air and includes the enclosed chamber, and an adsorbent that changes the amount of adsorption that adsorbs the enclosed medium according to the temperature is installed to partition the enclosed space. A temperature-sensitive part that senses the temperature of the temperature-sensitive object is constructed by a part of the partition wall.
The adsorbent is entirely covered with a partition member that allows the adsorbent to pass through the encapsulation medium but does not pass through the adsorbent, and is provided in thermal contact with the inner wall of the temperature-sensitive portion of the enclosed space via the partition member. A temperature valve device characterized by being installed. The temperature valve device according to claim 1, wherein the partition member is composed of a non-woven fabric. The temperature valve device according to claim 1 or 2, wherein the partition member and a part of the adsorbent are provided with a relief portion separated from the partition wall. The temperature valve device according to any one of claims 1 to 3, further comprising an inlet port, a valve port, and an outlet port, wherein the pressure on the outlet port side is introduced into the pressure equalizing chamber. .. A refrigerant delivery means that sends out the refrigerant to circulate the system piping, a first heat exchanger that dissipates the refrigerant, a flow control valve that controls the flow rate of the refrigerant, and a second heat exchanger that cools the cooling target. A cooling device including, wherein the temperature type valve device according to any one of claims 1 to 4 is used as the flow control valve. A refrigerant delivery means that sends out the refrigerant to circulate the system piping, a first heat exchanger that dissipates the refrigerant, a thermal expansion valve that controls the flow rate of the refrigerant, and a second heat exchanger that cools the cooling target. A refrigeration cycle system comprising the above, wherein the temperature valve device according to any one of claims 1 to 4 is used as the temperature expansion valve.

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