JP7154434B2 - Solenoid valve and fluid device - Google Patents

Description

The present invention relates to solenoid valves and fluid devices.

For example, a valve body used in a cooling circuit is provided with a reinforcing structure in order to protect the product from damage during transportation. In the valve body reinforcing structure described in Patent Document 1, the valve body includes an electromagnetic valve having a valve body, an inlet pipe, and an outlet pipe. Further, the valve body includes a soundproof box surrounding the valve body and having support holes through which the coolant inlet pipe and the coolant outlet pipe are passed. In order to reinforce the valve body, soundproofing and vibration-proofing material is wrapped around the inside and outside of the soundproof box around the inlet pipe and the outlet pipe. In addition, a seal member is wound between the soundproof/vibration-proof material and the support hole.

In addition, in the valve body reinforcement structure described in Patent Document 2, the valve body is a branch pipe joint in which a branch pipe is welded to a thermoplastic resin main pipe. In order to reinforce the valve body, an intermediate layer of reinforcing material is formed along the outer surface of the welded portion of the branch pipe joint. In addition, a fiber-reinforced thermosetting resin layer is formed covering the intermediate layer.

Japanese Utility Model Publication No. 63-29981 Japanese Patent Application Laid-Open No. 2003-130271

In the valve body reinforcing structure described in Patent Document 1, since the brazed portion is heated and melted when the solenoid valve is replaced, it is necessary to remove both the soundproof/vibration insulating material and the sealing member, which are reinforcing members. As a result, there is a problem that the replacement time is increased.

Further, in the valve body reinforcing structure described in Patent Document 1, the soundproof/vibration-proof material and the sealing member are fixed to the valve body by winding. Therefore, there is a problem that the wound portion comes off due to vibration during transportation, and as a result, the support rigidity of the pipe cannot be ensured, and there is a risk of breakage.

In the valve body reinforcing structure described in Patent Document 2, a reinforcing member is attached to the outer circumference of the branch portion of the pipe to ensure the support rigidity of the branch portion. When such a reinforcing structure is applied to an electromagnetic valve, the weight increases by attaching the reinforcing member to the outer peripheral surface. As a result, there is a problem that the resonance frequency of the solenoid valve is lowered and the pipe may be broken due to resonance.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a solenoid valve and a fluid device that can ensure support rigidity of components and prevent an increase in replacement time when components are replaced. do.

In order to achieve the above object, the solenoid valve of the present invention includes an inlet pipe that is an inlet for refrigerant supplied from the outside and an outlet pipe that is an outlet for discharging the refrigerant to the outside and extends in a direction different from that of the inlet pipe. and a movable part that connects the inlet pipe and the outlet pipe and opens and closes the flow path of the refrigerant, and a coil part, wherein the inlet pipe side part and the outlet A reinforcing member is provided connecting the outlet tube side of the tube , the reinforcing member forming a triangle with the inlet tube and the outlet tube .

In the present invention, a reinforcing member is provided that connects the inlet pipe side portion of the inlet pipe and the outlet pipe side portion of the outlet pipe. The reinforcing member can be fixed to the inlet pipe, the outlet pipe and the valve body by means of a three-point connection, for example by brazing or by elastic deformation. Therefore, according to the present invention, it is possible to secure the supporting rigidity of the component parts of the solenoid valve and prevent an increase in replacement time when replacing the component parts.

1 is a perspective view of an electromagnetic valve according to Embodiment 1 of the present invention; 1 is an exploded perspective view of an electromagnetic valve according to Embodiment 1 of the present invention; 1 is a cross-sectional perspective view of a coil portion of an electromagnetic valve according to Embodiment 1 of the present invention; Sectional view of the solenoid valve according to Embodiment 1 of the present invention A perspective view of a solenoid valve according to Embodiment 2 of the present invention An exploded perspective view of an electromagnetic valve according to Embodiment 2 of the present invention. A front view of a fluid device according to Embodiment 3 of the present invention

Embodiment 1.
A solenoid valve 10 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 4. FIG. In FIG. 4, a coil portion 200, a refrigerant inlet pipe 101, a refrigerant outlet pipe 102, a refrigerant inlet pipe expanded portion 104, and a refrigerant outlet pipe expanded portion 105, which will be described later, are shown in cross section.

As shown in FIG. 1, the solenoid valve 10 includes a valve body 100, a coil portion 200, and a reinforcing member 300. As shown in FIG.

As shown in FIG. 2, the valve body 100 includes a refrigerant inlet pipe 101, which is an inlet for refrigerant supplied from the outside. The valve body 100 includes a refrigerant outlet pipe 102 that is an outlet for discharging the refrigerant from the valve body 100 to the outside. The valve body 100 also includes a movable portion 103 that opens and closes the flow path of refrigerant from the refrigerant inlet pipe 101 to the refrigerant outlet pipe 102 .

Refrigerant inlet pipe 101 is a tubular body made of copper connected to movable portion 103 . The coolant inlet pipe 101 extends from the side of the movable portion 103 in an axial direction perpendicular to the axial direction of the movable portion 103 . A coolant inlet pipe expansion portion 104 is arranged at the tip of the coolant inlet pipe 101 . The inner diameter of the refrigerant inlet pipe expansion portion 104 is wider than the inner diameter of the refrigerant inlet pipe 101 in order to insert a mating member (not shown) for piping and connect it by brazing. The refrigerant inlet pipe expansion portion 104 may be formed integrally with the refrigerant inlet pipe 101 or may be a separate component fixed to the refrigerant inlet pipe 101 .

Refrigerant outlet pipe 102 is a tubular body made of copper connected to movable portion 103 . The refrigerant outlet pipe 102 extends in an axial direction different from the axial direction of the refrigerant inlet pipe 101 . In the example of Embodiment 1, the axial direction of refrigerant inlet pipe 101 and the axial direction of refrigerant outlet pipe 102 are perpendicular to each other. A refrigerant outlet pipe expansion portion 105 is formed at the tip of the refrigerant outlet pipe 102 . The inner diameter of the expanded refrigerant outlet pipe portion 105 is wider than the inner diameter of the refrigerant outlet pipe 102 in order to insert a mating member (not shown) for piping for brazing connection. The refrigerant outlet pipe expansion portion 105 may be formed integrally with the refrigerant outlet pipe 102 or may be a separate component fixed to the refrigerant outlet pipe 102 .

The movable part 103 is formed in a form having a generally two-tiered circumferential outer surface. A valve side surface 106, which is a circumferential surface to which the refrigerant inlet pipe 101 is connected, is formed in the small diameter portion 103a of the movable portion 103, which has a small outer diameter. A valve bottom surface 107, which is a bottom surface to which the refrigerant outlet pipe 102 is connected, is formed on the small diameter portion 103a. The coil portion 200 is fitted to the large diameter portion 103b of the movable portion 103, which has a large outer diameter. Inside the movable portion 103, there is provided a valve body (not shown) that opens and closes the flow path of the refrigerant in the order of the refrigerant inlet pipe 101, the movable portion 103, and the refrigerant inlet pipe expanding portion 104 by a known mechanism.

The coil portion 200 has a coil contained inside the housing for applying an electromagnetic force to the valve body of the movable portion 103 . The coil is powered by an external power supply (not shown). As shown in FIG. 3, the coil portion 200 is formed with a coil portion inner wall surface 201 that is a circular inner surface.

As shown in FIG. 4, the valve main body 100 and the coil portion 200 are fitted and fixed by the large-diameter portion 103b of the movable portion 103 of the valve main body 100 and the coil portion inner wall surface 201 of the coil portion 200. As shown in FIG. When the coil portion 200 is rusted or broken and needs to be replaced, the fitted and locked coil portion 200 is removed and replaced.

The solenoid valve 10 opens and closes the flow path by converting the current flowing through the coil of the coil section 200 into mechanical motion of the movable section 103 by electromagnetic induction.

As shown in FIG. 2 , the reinforcing member 300 includes a stay 301 extending between the coolant inlet pipe 101 and the coolant outlet pipe 102 . The reinforcing member 300 includes an attachment portion 302 attached to the refrigerant inlet pipe 101 . The reinforcing member 300 includes an attachment portion 303 attached to the refrigerant outlet pipe 102 . The reinforcing member 300 includes an inlet pipe contact portion 304 that contacts the outer peripheral surface of the refrigerant inlet pipe 101 . The reinforcing member 300 includes an outlet pipe contact portion 305 that contacts the outer peripheral surface of the refrigerant outlet pipe 102 . The reinforcing member 300 includes an inlet pipe expanded pipe contact portion 306 that contacts the refrigerant inlet pipe expanded pipe portion 104 . In addition, the reinforcing member 300 includes an outlet tube expanded pipe contact portion 307 that contacts the refrigerant outlet pipe expanded pipe portion 105 .

The reinforcing member 300 is molded from a copper plate in which the above parts are integrated. Each portion of the reinforcing member 300 has the same plate thickness because it is molded from a plate material. The reinforcing member 300 is a member that connects the coolant inlet pipe 101 and the coolant outlet pipe 102 . The reinforcing member 300 reinforces the solenoid valve 10 by forming a triangle with the refrigerant inlet pipe 101 and the refrigerant outlet pipe 102 .

The stay 301 is a flat strip-shaped portion. The stay 301 is a connecting portion that connects the mounting portion 302 and the mounting portion 303 .

The attachment portion 302 is a first connection portion that is attached to the side portion of the refrigerant inlet pipe 101, which is the side portion of the inlet pipe, by fitting and locking. The mounting portion 302 has a shape in which a belt-like plate is wound and a part is opened in a C shape. The length of the C-shaped turn is less than the length of one turn and greater than the length of half the turn. The attachment portion 302 has an inner diameter that is approximately the same as the outer diameter of the refrigerant inlet pipe 101 and does not loosen when attached to the refrigerant inlet pipe 101 . One end of the C-shaped mounting portion 302 is connected to one end of the stay 301 .

The attachment portion 303 is a second connection portion that is attached to the side portion of the refrigerant outlet pipe 102, which is the side portion of the outlet pipe, by fitting and locking. Like the mounting portion 302, the mounting portion 303 has a C-shaped partly opened shape in which a belt-like plate is wound. The length of the C-shaped turn is less than the length of one turn and greater than the length of half the turn. The mounting portion 303 has substantially the same outer diameter as the refrigerant outlet pipe 102 and has an inner diameter that does not loosen when attached to the refrigerant outlet pipe 102 . One end of the C-shaped mounting portion 303 is connected to the other end of the stay 301 .

The inlet pipe contact portion 304 is the inner peripheral surface of the mounting portion 302 . When attaching the mounting portion 302 to the refrigerant inlet pipe 101 , the open portion of the mounting portion 302 is expanded from the outer diameter of the refrigerant inlet pipe 101 by elastic deformation, and then the mounting portion 302 is fitted into the refrigerant inlet pipe 101 and locked. When the attachment portion 302 is attached to the refrigerant inlet pipe 101 , the inlet pipe contact portion 304 contacts the outer peripheral surface of the refrigerant inlet pipe 101 .

The outlet pipe contact portion 305 is the inner peripheral surface of the mounting portion 303 . When attaching the mounting portion 303 to the refrigerant outlet pipe 102 , the open portion of the mounting portion 303 is expanded from the outer diameter of the refrigerant outlet pipe 102 by elastic deformation, and then the mounting portion 303 is fitted into the refrigerant outlet pipe 102 and locked. When the attachment portion 303 is attached to the refrigerant outlet pipe 102 , the outlet pipe contact portion 305 contacts the outer peripheral surface of the refrigerant outlet pipe 102 .

The inlet pipe expansion contact portion 306 is an end portion of the mounting portion 302 on the refrigerant inlet pipe expansion portion 104 side. The inlet pipe expanded pipe contact portion 306 contacts the refrigerant inlet pipe expanded pipe portion 104 at the end of the refrigerant inlet pipe 101 when the attachment portion 302 is attached to the refrigerant inlet pipe 101 . At this time, either the end surface of the inlet pipe expanded pipe contact portion 306 or the edge thereof contacts the refrigerant inlet pipe expanded pipe portion 104 .

The outlet pipe expanded pipe contact portion 307 is an end portion of the mounting portion 303 on the refrigerant outlet pipe expanded pipe portion 105 side. The outlet pipe expanded pipe contact portion 307 contacts the refrigerant outlet pipe expanded pipe portion 105 at the end of the refrigerant outlet pipe 102 when the mounting portion 303 is attached to the refrigerant outlet pipe 102 . At this time, either the end surface of the outlet pipe expanded pipe contact portion 307 or the edge thereof contacts the refrigerant outlet pipe expanded pipe portion 105 .

The contact between the refrigerant inlet pipe expanded portion 104 and the inlet pipe expanded contact portion 306 and the contact between the refrigerant outlet pipe expanded portion 105 and the outlet pipe expanded contact portion 307 determine the mounting position of the reinforcing member 300. will be

In Embodiment 1, the reinforcing member 300 attached to the valve body 100 ensures support rigidity of the refrigerant inlet pipe 101 and the refrigerant outlet pipe 102 during transportation and operation of the electromagnetic valve 10 . Therefore, phase shift of vibration between the refrigerant inlet pipe 101 and the refrigerant outlet pipe 102 is suppressed, especially during transportation. As a result, it is possible to reduce the stress generated in the root portions of the refrigerant inlet pipe 101 and the refrigerant outlet pipe 102 during transport vibration.

Moreover, in Embodiment 1, the reinforcing member 300 does not interfere with the coil portion 200 . Therefore, when the coil portion 200 of the solenoid valve 10 rusts or breaks and needs to be replaced, the coil portion 200 fitted and locked to the movable portion 103 can be easily removed and replaced.

Further, in Embodiment 1, the mass of the reinforcing member 300 is sufficiently small compared to the mass of the valve main body 100 and the coil portion 200 and can be ignored. Therefore, the presence or absence of the reinforcing member 300 does not significantly change the resonance frequency. The resonance frequency ω (Hz) is determined by the formula ω=1/(2π)√(k/m), where k (N/m) is the spring constant and m (kg) is the mass. Therefore, as the mass m increases, the resonance frequency ω increases in proportion to the reciprocal of the square root of the mass m. When the reinforcement member 300 is assumed to be copper in the assumed model of the solenoid valve 10, the resonance frequency ω of the solenoid valve decreases by 0.5% from the increase rate of the mass m. Therefore, the resonance frequency ω of the solenoid valve is not greatly affected. Therefore, according to Embodiment 1, unlike the conventional structure in which the resonance frequency ω of the solenoid valve changes greatly and resonates due to vibration during transportation, other structural parts connected to the solenoid valve 10 are not affected. .

Further, in Embodiment 1, the refrigerant inlet pipe expansion portion 104 and the inlet pipe expansion contact portion 306 are in contact with each other, and the refrigerant outlet pipe expansion portion 105 and the outlet pipe expansion contact portion 307 are in contact with each other. Thereby, the reinforcing member 300 is fixed to the valve body 100 . Therefore, the reinforcing member 300 can be easily positioned and attached without error.

Further, in Embodiment 1, when reinforcing member 300 receives a load due to vibration, the load can be dispersed in the axial direction of refrigerant inlet pipe 101 and refrigerant outlet pipe 102 . Therefore, it is possible to effectively prevent the reinforcing member 300 from coming off.

Moreover, in Embodiment 1, brazing or welding can be considered as a method of fixing the reinforcing member 300 to the valve body 100 . For example, in brazing, when removing the solenoid valve 10 itself, it is necessary to heat the brazed portion. Therefore, the melting point of the reinforcing member 300 must be higher than the melting point of the brazing material. In the case of Embodiment 1, the material of the refrigerant inlet pipe 101 and the refrigerant outlet pipe 102 is copper. Therefore, in order to prevent electric corrosion, the reinforcing member 300 is preferably made of copper or stainless steel.

Further, in the first embodiment, the material of the reinforcement member 300 is copper in the assumed model of the solenoid valve 10 . At this time, in the first embodiment, compared to the case where the reinforcing member 300 is not attached, the root stress on the vertical side of the refrigerant inlet pipe 101 can be reduced by about 43%, and the root stress on the lateral side can be reduced by about 5%. is.

Embodiment 2.
A solenoid valve 20 according to Embodiment 2 of the present invention will be described with reference to FIGS. 5 and 6. FIG.

As shown in FIG. 5, the electromagnetic valve 20 includes a valve body 100, a coil portion 200, and a reinforcing member 400. As shown in FIG. The valve body 100 and the coil portion 200 have the same structures as those described in the first embodiment. The reinforcing member 400 will be described below.

As shown in FIG. 6, the reinforcing member 400 includes a stay 401 extending over the coolant inlet pipe 101, the coolant outlet pipe 102, and the small diameter portion 103a. The reinforcing member 400 includes an attachment portion 402 attached to the refrigerant inlet pipe 101 . The reinforcing member 400 includes an attachment portion 403 attached to the refrigerant outlet pipe 102 . The reinforcing member 400 includes an inlet pipe contact portion 404 that contacts the outer peripheral surface of the refrigerant inlet pipe 101 . The reinforcing member 400 includes an outlet pipe contact portion 405 that contacts the outer peripheral surface of the refrigerant outlet pipe 102 . The reinforcing member 400 includes an inlet pipe expanded pipe contact portion 406 that contacts the refrigerant inlet pipe expanded pipe portion 104 . The reinforcing member 400 includes an outlet pipe expanded pipe contact portion 407 that contacts the refrigerant outlet pipe expanded pipe portion 105 . The reinforcing member 400 includes a valve-side contact portion 408 that contacts the valve-side surface 106 . The reinforcing member 400 includes a valve bottom surface contact portion 409 that contacts the valve bottom surface 107 . Moreover, the reinforcing member 400 includes a support portion 410 that supports the movable portion 103 .

The reinforcing member 400 is a member molded from a copper plate, in which the above parts are integrated. Any molding method may be used, but in the second embodiment, each portion has the same plate thickness. Reinforcing member 400 is connected to movable portion 103 in addition to coolant inlet pipe 101 and coolant outlet pipe 102 . The reinforcing member 400 is a member that forms the triangle of the refrigerant inlet pipe 101, the refrigerant outlet pipe 102, and the reinforcing member 300 and reinforces the valve body 100 with the triangle of the reinforcing member 400 itself.

The stay 401 has a right-angled triangular shape that matches the coolant inlet pipe 101 and the coolant outlet pipe 102 that are perpendicular to each other. For weight reduction, a right triangular hole is provided inside the stay 401 . As a result, the right triangle of the stay 401 is formed by connecting strips corresponding to three sides.

The mounting portion 402, the inlet pipe contact portion 404, and the inlet pipe expansion contact portion 406 on the refrigerant inlet pipe 101 side are the same as the mounting portion 302, the inlet pipe contact portion 304, and the inlet pipe expansion contact portion of the first embodiment, respectively. It is formed in the same manner as the portion 306 .

The mounting portion 403, the outlet pipe contact portion 405, and the outlet pipe expansion contact portion 407 on the refrigerant outlet pipe 102 side are the same as the mounting portion 303, the outlet pipe contact portion 305, and the outlet pipe expansion contact portion of the first embodiment, respectively. It is formed in the same manner as the portion 307 .

The support portion 410 is a support portion that is attached to the small diameter portion 103 a of the movable portion 103 and supports the movable portion 103 . The support portion 410 has a partially opened C shape when viewed in the Y-axis direction. The length of the C-shaped turn is less than the length of one turn and greater than the length of half the turn.

The valve side contact portion 408 is the inner peripheral surface of the support portion 410 . The valve bottom contact portion 409 is the bottom surface of the support portion 410 . The valve side contact portion 408 is erected at a right angle from the valve bottom contact portion 409 .

The valve-side contact portion 408 is a surface that contacts the valve-side surface 106 that is the outer peripheral surface of the small-diameter portion 103 a of the movable portion 103 . The valve bottom surface contact portion 409 is a surface that contacts the valve bottom surface 107, which is the bottom surface of the small diameter portion 103a. The valve bottom contact portion 409 has substantially the same outer diameter as the small diameter portion 103a and has an inner diameter that does not loosen when attached to the small diameter portion 103a. One ends of the C-shaped valve side contact portion 408 and valve bottom contact portion 409 are connected to the right-angled edge of the stay 401 .

The support portion 410 is attached by being fitted and locked to the small diameter portion 103 a of the movable portion 103 . When attaching the support portion 410, the open portion of the support portion 410 is expanded from the outer diameter of the small-diameter portion 103a by elastic deformation, and then the outlet pipe expansion contact portion 407 is fitted and locked to the small-diameter portion 103a. When the support portion 410 is attached to the small diameter portion 103a, the valve side contact portion 408 contacts the outer peripheral surface of the small diameter portion 103a. In addition, the valve bottom surface contact portion 409 contacts the surface of the small diameter portion 103a in the +Y direction.

Since the reinforcing member 400 is attached to the valve body 100 at three points, it is not fixed by brazing, welding, or the like, and is detachable. If necessary, the reinforcing member 400 is removed from the valve main body 100 by removing the mounting portion 402, the mounting portion 403, and the support portion 410 by reversing the mounting procedure.

In Embodiment 2, the reinforcing member 400 attached to the valve main body 100 ensures support rigidity of the refrigerant inlet pipe 101 and the refrigerant outlet pipe 102 during transportation and operation of the electromagnetic valve 20 . Therefore, the phase shift of the vibration between the refrigerant inlet pipe 101 and the refrigerant outlet pipe 102 is suppressed particularly during transportation, thereby reducing the stress generated at the root portions of the refrigerant inlet pipe 101 and the refrigerant outlet pipe 102 during transportation vibration. becomes possible.

Further, in the second embodiment, the valve side surface 106 and the valve side surface contact portion 408 are in contact, and the valve bottom surface 107 and the valve bottom surface contact portion 409 are in contact, as a difference from the first embodiment. That is, since the movable portion 103 is supported by the reinforcing member 400, deformation of the refrigerant inlet pipe 101 in the lateral direction can be suppressed.

Further, in the second embodiment, the reinforcing member 400 does not interfere with the coil portion 200 as in the first embodiment. Therefore, when the coil portion 200 of the solenoid valve is rusted or broken and needs to be replaced, the coil portion 200 fitted and locked to the movable portion 103 can be easily removed and replaced.

Further, in the second embodiment, as in the first embodiment, the mass of the reinforcing member 400 is sufficiently small compared to the masses of the valve main body 100 and the coil portion 200 and can be ignored. Therefore, the presence or absence of the reinforcing member 400 does not significantly change the resonance frequency of the solenoid valve. The resonance frequency ω (Hz) is determined by the formula ω=1/(2π)√(k/m), where k (N/m) is the spring constant and m (kg) is the mass. Therefore, as the mass m increases, the resonance frequency ω increases in proportion to the reciprocal of the square root of the mass m. When the reinforcement member 400 is assumed to be copper in the assumed model of the solenoid valve 20, the resonance frequency ω of the solenoid valve is reduced by 0.25% from the rate of increase of the mass m. Therefore, the resonance frequency ω of the solenoid valve is not greatly affected. Therefore, according to the second embodiment, unlike the conventional structure in which the resonance frequency ω of the solenoid valve changes greatly and resonates due to vibration during transportation, other structural parts connected to the solenoid valve 20 are not affected. .

Further, in Embodiment 2, the reinforcing member 400 of the valve body 100 includes the refrigerant inlet pipe expanded portion 104 and the inlet pipe expanded contact portion 406, and the refrigerant outlet pipe expanded portion 105 and the outlet pipe expanded contact portion 407. , abut each other. In the second embodiment, in addition to this, the valve side surface 106 and the valve side surface contact portion 408 and the valve bottom surface 107 and the valve bottom surface contact portion 409 are respectively in contact. Therefore, the reinforcing member 400 can be easily positioned and attached without error.

Further, in the second embodiment, when reinforcing member 400 receives a load due to vibration, the load can be dispersed in the axial direction of refrigerant inlet pipe 101 , refrigerant outlet pipe 102 and movable portion 103 . Therefore, it is possible to prevent the reinforcing member 400 from coming off.

In the second embodiment, as a method of fixing the reinforcing member 400 to the valve main body 100, it is possible to fix the reinforcing member 400 to the valve main body 100 by elastic deformation called snap fit at the three points of the mounting portion 402, the mounting portion 403, and the support portion 410. For example, when removing the reinforcing member 400 to replace the electromagnetic valve 20 itself, the reinforcing member 400 is removed before heating the brazed portion. In this case, it is preferable that the reinforcing member 400 is easy to remove.

Embodiment 3.
A fluid device 700 according to Embodiment 3 of the present invention will be described with reference to FIG.

A fluid device 700 shown in FIG. 7 is an air conditioner outdoor unit. One or more of the electromagnetic valves 10 and 20 described above are provided at arbitrary positions inside and outside the fluid device 700 . As described above, the solenoid valve 10 has the reinforcement member 300 and the solenoid valve 20 has the reinforcement member 400 . The solenoid valves 10 and 20 connect pipes routed inside the fluid device 700 and control the flow rate of the refrigerant by the movable portion 103 that opens and closes the flow path of the refrigerant.

Fluid device 700 of Embodiment 3 can obtain the above-described advantageous effects of solenoid valves 10 and 20 by reinforcing members 300 and 400 . A refrigerator, a freezer, or another device may be used as long as it has a structure in which a fluid flows through connections with pipes and the electromagnetic valves 10 and 20 .

The present invention is not limited to the above embodiments, and various modifications and applications are possible.

In the second embodiment, it is detachably fixed by three points. Therefore, it is also preferable that the material of the reinforcing member 400 be a resin that prevents electric corrosion, is lightweight, and is easy to remove, in addition to the copper described above. Further, in order to secure strength, for example, a fiber-reinforced resin containing glass fiber may be used. Assuming that the material of the reinforcing member 400 is resin, compared to the case where the reinforcing member 400 is not attached, the root stress on the vertical side of the refrigerant inlet pipe 101 is about 20%, the root stress on the lateral side is about 15%, Each can be reduced.

The reinforcing member 300 and the reinforcing member 400 are preferably integrally molded in terms of mass and cost. In addition, the reinforcing member 300 and the reinforcing member 400 may be separate types that are fastened with a fastening member, for example, within a reasonable reinforcement range.

The reinforcing member 300 and the reinforcing member 400 may have a shape that increases the rigidity of the reinforcing member 300 and the reinforcing member 400 itself by changing the shape with ribs, for example.

The present invention is capable of various embodiments and modifications without departing from the broader spirit and scope of the invention. Moreover, the embodiment described above is for explaining the present invention, and does not limit the scope of the present invention. That is, the scope of the present invention is indicated by the claims rather than the embodiments. Various modifications made within the scope of the claims and within the meaning of equivalent inventions are considered to be within the scope of the present invention.

This application is based on Japanese Patent Application No. 2019-182828 filed on October 3, 2019. The entire specification, claims, and drawings of Japanese Patent Application No. 2019-182828 are incorporated herein by reference.

INDUSTRIAL APPLICABILITY The present invention can be suitably employed, for example, in a cooling circuit of a refrigerator or freezer.

10, 20 electromagnetic valve 100 valve body 101 refrigerant inlet pipe 102 refrigerant outlet pipe 103 movable portion 103a small diameter portion 103b large diameter portion 104 refrigerant inlet pipe expanded portion 105 refrigerant outlet pipe expanded portion 106 valve side , 107 valve bottom surface 200 coil portion 201 coil portion inner wall surface 300, 400 reinforcing member 301, 401 stay 302, 402 mounting portion 303, 403 mounting portion 304, 404 inlet pipe contact portion 305, 405 outlet Pipe contact portion 306, 406 Inlet pipe expansion contact portion 307, 407 Exit pipe expansion contact portion 408 Valve side contact portion 409 Valve bottom contact portion 410 Support portion 700 Fluid device.

Claims (8)

an inlet pipe serving as an inlet for the coolant supplied from the outside;
an outlet pipe for discharging the refrigerant to the outside and extending in a direction different from that of the inlet pipe;
a valve body having a movable portion connected to the inlet pipe and the outlet pipe and opening and closing the flow path of the refrigerant;
a coil section;
A solenoid valve comprising
a reinforcing member connecting an inlet pipe side portion of the inlet pipe and an outlet pipe side portion of the outlet pipe ;
the reinforcing member forms a triangle with the inlet tube and the outlet tube;
solenoid valve. The reinforcing member comprises a flat strip-shaped stay extending between the inlet pipe and the outlet pipe,
The solenoid valve according to claim 1. The reinforcing member includes a first connecting portion connected to the inlet pipe side portion, a second connecting portion connected to the outlet pipe side portion, and the first connecting portion and the second connecting portion. and a connecting portion that connects the
The first connecting portion and the second connecting portion each have a C-shape and can be attached to and detached from the inlet pipe side portion and the outlet pipe side portion by elastic deformation.
The solenoid valve according to claim 1 or 2 . an inlet pipe expansion section having an inner diameter wider than the inner diameter of the inlet pipe for connecting to a mating member of the inlet pipe;
an outlet tube expansion section having an inner diameter wider than the inner diameter of the outlet tube for connecting to a mating member of the outlet tube,
the first connecting portion of the reinforcing member abuts on the expanded inlet pipe portion;
the second connecting portion of the reinforcing member abuts on the expanding portion of the outlet pipe;
The solenoid valve according to claim 3 . the reinforcing member is connected to the inlet pipe and the outlet pipe by brazing, respectively;
The solenoid valve according to any one of claims 1 to 4 . The reinforcing member further includes a support portion that supports the movable portion,
The support portion is connected to the first connection portion and the second connection portion,
The solenoid valve according to claim 3 or 4 . The plate thickness of each part of the reinforcing member is the same,
The solenoid valve according to any one of claims 1 to 6 . A fluid device comprising the solenoid valve according to any one of claims 1 to 7 .

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