Slide valve and refrigeration circuit system with this slide valve

Abstract

A slide valve is provided, which can suppress vibrations of an electromagnetic drive unit, and a refrigeration circuit system with the relevant bracket. In a support (1), upright plates (2) are formed with a curved surface shape, such that, compared to a structure where they extend in a flat surface shape along a YZ plane, deformation in the form of collapse is easily suppressed when forces act on the upright plates (2) in the X direction. By supporting a valve main body (120) of an electromagnetic drive unit (102) by means of the outer edge sections (24) of this pair of upright plates (2), vibrations of the electromagnetic drive unit (102) can be suppressed.

Description

[Technical field]

[0001] The present invention relates to a slide valve and a refrigeration circuit system with this slide valve. [State of the art]

[0002] In general, a slide valve is used in a refrigeration system to perform a switching operation. This is achieved by means of an electromagnetic actuator unit that moves the valve body onto a valve seat. A conventional design for such a slide valve is a flow-path switching valve with a mounting bracket for attaching a pilot actuator as the electromagnetic actuator unit (see, for example, Patent Document 1). In the flow-path switching valve described in Patent Document 1, the formation of a press-fit section on the mounting bracket is intended to suppress any play in the pilot actuator. [Citation list][Cited patent documents]

[0003] [Patent document 1] Patent publication no. JP 2010-112437 A [Summary of the invention][Technical problem]

[0004] While the flow path diverter valve described in patent document 1 can suppress play between the mounting bracket and the pilot actuator, it is difficult to suppress deformation of the mounting bracket itself. Since the electromagnetic actuator unit contains a coil and a magnet and can easily become quite heavy, deformation of the mounting bracket can readily induce vibrations. Furthermore, if vibrations occur in the electromagnetic actuator unit, abnormal vibrations can arise due to the relationship between the direction of vibration and the operating direction of the electromagnetic actuator unit. Therefore, it is desirable to suppress vibrations of the electromagnetic actuator unit by means of an element for attaching the electromagnetic actuator unit to a slide valve body.

[0005] The purpose of the present invention is to provide a slide valve for switching, by which vibrations of the electromagnetic drive unit can be suppressed, and a refrigeration circuit system with this slide valve. [Means of solving the problem]

[0006] The slide valve according to the invention is a slide valve comprising a slide valve main body, an electromagnetic drive unit by which switching control of a flow path can be carried out by means of a sliding movement of a valve body of the slide valve main body, and a holder by which the electromagnetic drive unit is attached to the slide valve main body, characterized in that the slide valve main body has a cylindrical valve body that receives the valve body, the electromagnetic drive unit has an intake element, a coil exciting the intake element, a plunger that is moved by the intake element, and a cylindrical element that receives the plunger and the intake element, wherein the holder attaches the cylindrical element to an outer circumferential surface of the valve main body in such a way thatthat the axes of the valve main body and the cylindrical element run parallel to each other, and comprises a pair of upright plates extending from the outer circumferential surface to an outer circumferential side and arranged side by side in the direction of the axes, and the upright plates extending along a surface intersecting the direction of the axes, supporting the cylindrical element on the outer circumferential side and having a curved surface section which has at least one section that becomes a bulge to one side of the direction of the axes.

[0007] According to the present invention, as described above, by forming the upright plates with a curved surface shape, compared to a design in which they have a flat surface shape orthogonal to the direction of the axes of the slide valve main body and the electromagnetic drive unit, deformation in the form of collapse can be suppressed when forces act on the upright plates in the orthogonal direction. By supporting the cylindrical element with the outer circumferential surface of this pair of upright plates, vibrations of the electromagnetic drive unit (in particular, vibrations in the direction of the axis) can be suppressed.

[0008] Preferably, in the slide valve of the present invention, an inner edge section of the side of the slide valve main body has a circular arc-shaped section extending along the outer circumferential surface in the upright plates. According to such a design, when the bracket is connected to the valve main body, e.g. by soldering, the contact area between them is increased and the connection stability is easily ensured.

[0009] In the slide valve of the present invention, it is further preferred that the degree of curvature of the circular arc section in the inner edge section is smaller than the degree of curvature of the outer circumferential surface. According to such a design, if a portion of the outer circumferential surface of the valve main body of the slide valve main body is brought into circumferential contact with the central portion of the inner edge section of the upright plates, a small gap can form between the outer circumferential surface of the valve main body and the inner edge section of the upright plates at a position that shifts this contact section from the circumferential direction towards the center. This means that during soldering, solder can seep into this gap, thereby improving the connection stability.

[0010] In the slide-type diverter valve of the present invention, it is further preferred to include foot sections that extend from the inner edge section to one side of the axis direction and run along the outer circumferential surface. According to such a design, when connecting the bracket to the valve body, e.g., by soldering, the contact area between them can be increased and the connection stability ensured, and deformation of the upright plates can also be suppressed. If, for example, the upright plates have a pair of end edge sections extending from the inner edge section to the outer circumferential side of the slide-type diverter valve body, a projection between the pair of end edge sections, and are curved, deformation can occur, causing the pair of end edge sections to move closer together or further apart (change the degree of curvature).Because the foot sections run intersecting with the upright plates, such deformation can be suppressed.

[0011] In the slide-type changeover valve of the present invention, it is further preferred if a cover plate section is also included, which connects the outer edge sections of the pair of upright plates on the side of the magnetic drive unit, and the cover plate section has a contact surface extending in a curved shape along the cylindrical element and pointing towards the side of the cylindrical element. According to such a design, when connecting the bracket to the cylindrical element, e.g. by soldering, the contact area between them can be increased and the connection stability ensured.

[0012] In the slide-type diverter valve of the present invention, it is further preferred if the ceiling plate section has a plurality of projections that extend from the mounting surface. According to such a design, a gap can be formed between the mounting surface and the cylindrical element, and during soldering, solder can seep into this gap, thereby improving the joint stability. Furthermore, the projections and the cylindrical element can be temporarily fixed, e.g., by resistance welding, and machinability can be improved.

[0013] In the slide-type changeover valve of the present invention, it is further preferred if the degree of curvature of the contact surface is greater than the degree of curvature of the cylindrical element, and if, taking the central section in its circumferential direction towards the center, at least one projection is provided on both sides. According to such a design, in a state in which the cylindrical element and the projections are in contact, a gap is easily ensured between the central section of the contact surface in the circumferential direction and the cylindrical element, and a weld resistance as specified above is easily achieved.That is, if the degree of curvature of the cylindrical element is large, the cylindrical element more easily penetrates between the projections on both sides, taking the middle section into the center, and contact between the cylindrical element and the middle section is more easily achieved, whereas, due to the aforementioned relationship of the degree of curvature, such penetration of the cylindrical element can be suppressed.

[0014] In the slide-type diverter valve of the present invention, it is further preferred if the ceiling plate section has a notch on at least one of the pair of end edges extending along the direction of the axes. According to such a design, a projecting section (e.g., a valve seat section) or a line formed with a larger diameter than others can be arranged in the notch of the electromagnetic drive unit, thus preventing it from interfering with the mounting.

[0015] In the slide-type diverter valve of the present invention, it is further preferred if at least the pair of upright plates and the ceiling plate section are formed in one piece from a single plate material. According to such a design, the support can be formed by plastically deforming the plate material, e.g., by processing it with a press, and the manufacturing costs can be reduced.

[0016] The refrigeration cycle system of the present invention is characterized in that it comprises a compressor that compresses a refrigerant fluid, a first heat exchanger that functions as a condenser in cooling mode, a second heat exchanger that functions as an evaporator in cooling mode, an expansion agent that expands and decompresses the refrigerant between the first and second heat exchangers, and the aforementioned slide-type reversing valve. According to the refrigeration cycle system of the present invention, vibrations of the magnetic drive unit can be suppressed as described above. [Effects of the invention]

[0017] According to the slide valve and the refrigeration circuit system of the present invention, vibrations of the magnetic drive unit can be suppressed. [Brief description of the characters] [ Fig. 1] Fig. Figure 1 is a schematic view of the structure of a refrigeration circuit in which a slide valve is provided according to an embodiment as an example of the present invention. [ Fig. 2] Fig. Figure 2 is a top view showing the state of an electromagnetic actuator unit attached to a slide valve main body by means of a bracket in the case of a slide valve. [ Fig. 3] Fig. Figure 3 is a side view showing the state of the electromagnetic drive unit attached to the slide valve main body by means of the bracket. [ Fig. 4] Fig. Figure 4 is a perspective view from above showing the bracket. [ Fig. 5] Fig. Figure 5 is a perspective view showing the bracket from below. [ Fig. 6] Fig. Figure 6 is a top view from below, showing the bracket. [ Fig. 7] Fig. 7 is a cross-section along a line AA in Fig. 6. [ Fig. 8] Fig. Figure 8 is a side view showing the bracket. [Forms for carrying out the invention]

[0018] The embodiments of the present invention are explained with reference to the figures. A slide valve 200 of the present embodiment comprises, as shown in Fig. 2 and Fig. Figure 3 shows a four-way diverter valve main body 101 as a spool diverter valve main body, an electromagnetic actuator unit 102 as a pilot solenoid valve which controls the switching of the flow path of the four-way diverter valve main body 101, and a holder 1 for attaching the electromagnetic actuator unit 102 to the four-way diverter valve main body 101, and forms, for example, a Fig. The refrigeration circuit 100 shown in Figure 1. The slide valve can also be a type other than a four-way diverter valve. The refrigeration circuit 100 is used for an air conditioning unit such as a room air conditioner, a package air conditioner, or a multi-unit air conditioner. It consists of a compressor 103, which compresses a refrigerant fluid; an outdoor heat exchanger 104, which acts as the first heat exchanger and functions as a condenser in cooling mode; an indoor heat exchanger 105, which acts as the second heat exchanger and functions as an evaporator in cooling mode; an expansion valve 106, which expands and decompresses the refrigerant between the outdoor heat exchanger 104 and the indoor heat exchanger 105; and the slide valve 200, which are connected by a refrigerant line. The expansion medium is not limited to the expansion valve 106, but can also be a capillary.

[0019] The refrigeration cycle 100 forms the Fig. In the cooling mode (cooling operation), shown with solid arrows, a cooling circuit is formed in which a refrigerant flows through the compressor 103, the four-way diverter valve main body 101, the heat exchanger outdoor unit 104, the expansion valve 106, the heat exchanger indoor unit 105, the four-way diverter valve main body 101, and the compressor 103 in that order. Conversely, in the heating mode (heating operation), shown with dashed arrows, it forms a heating circuit in which the refrigerant flows through the compressor 103, the four-way diverter valve main body 101, the heat exchanger indoor unit 105, the expansion valve 106, the heat exchanger outdoor unit 104, the four-way diverter valve main body 101, and the compressor 103 in that order. The switching between the heating circuit and the cooling circuit is carried out by a switching operation of the four-way diverter valve main body 101 by means of the electromagnetic drive unit 102.

[0020] The four-way diverter valve main body 101 is a generally known four-way diverter valve main body, which is constructed in such a way as to include a cylindrical valve main body 111, a slide valve 112 which is provided to be freely slidable inside the valve main body and whose position is switchable, a high-pressure side line (D-connector) 113 which is connected to an outlet opening of the compressor 103, a low-pressure side line (S-connector) 114 which is connected to an intake opening of the compressor 103, an indoor side line (E-connector) 115 which is connected to the heat exchanger indoor unit 105, and an outdoor side line (C-connector) 116 which is connected to the heat exchanger outdoor unit 104.The main valve body 111 has closing bodies 117, 118 which close its two end sections in the axial direction, thus forming a sealed cylinder in which spaces A11, A12 are formed which take a piston 119, by which the slide valve 112 is moved, from the axial direction to the center.

[0021] The electromagnetic actuator unit 102 of the present embodiment is a generally known electromagnetic actuator unit comprising a four-way switching valve, which has a valve body 120, a valve seat section 121, a valve body 122, an electromagnetic actuator unit 123, and connecting pieces 124 to 127. The flow path of the fluid is switched by the movement of the valve body 122 along a specific sliding direction (i.e., direction of movement). That is to say, the electromagnetic actuator unit 123 comprises a plunger 128, a suction element 129, and a coil 130. When current is supplied to the coil 130, the suction element is energized, and the valve body 122, held by the plunger 128, moves.By switching the flow path in the electromagnetic drive unit 102, a high-pressure fluid from the high-pressure side line 113 is directed into one of the chambers A11, A12, which move the piston 119 from the axial direction to the center, a low-pressure fluid from the low-pressure side line 114 is directed into the other chamber, and the piston 119 moves to the chamber of the low-pressure side.

[0022] The bracket 1 serves to attach the valve main body 120, a cylindrical element, to the electromagnetic drive unit 102 with respect to an outer circumferential surface 111A of the cylindrical valve main body 111 of the four-way diverter valve main body 101, wherein the axis of the valve main body 111 and the axis of the valve main body 120 run parallel to each other (in the present embodiment, they are parallel to each other), and the direction of these axes coincides with the sliding direction of the slide valve 112 and the valve body 122. Hereinafter, the direction of the axes of the valve main body 111 and the valve main body 120 is referred to as the X-direction, the direction in which the valve main body 111 and the valve main body 120 lie side by side as the Z-direction, and the direction orthogonal to both the X-direction and the Z-direction as the Y-direction.Furthermore, the side of the valve main body 111 in the Z-direction (side of the four-way diverter valve main body 101) is also simply referred to as the bottom, and the side of the valve main body 120 (side of the electromagnetic actuator unit 102) is simply referred to as the top. Here, top / bottom is used for convenience, and the Z-direction does not necessarily have to coincide with the vertical.

[0023] Mounting bracket 1 includes, as shown in Fig. Figures 4 to 8 show a pair of upright plates 2, a ceiling plate section 3, and a pair of foot sections 4. The support 1 is formed, for example, by plastically deforming a single sheet of metal material, such as stainless steel, etc., using a press, whereby the pair of upright plates 2, the ceiling plate section 3, and the pair of foot sections 4 are formed in one piece.

[0024] The upright plates 2 extend from the outer circumferential surface 111A of the valve main body 111 in the four-way diverter valve main body 101 to the outer circumferential side, extending overall along a YZ plane, which is a surface orthogonal to the X direction as the direction of the axes. The pair of upright plates 2 are arranged next to each other at a certain distance in the X direction and are curved such that a bulge is formed in the X direction on the side where they approach each other. That is, the upright plates 2 are formed in a curved surface shape which has a pair of end edge sections 21 extending along the Z direction and a projection 22 which forms a bulge between the pair of end edge sections 21 directed towards the side of the other upright plate 2, resulting in overall curved surface sections.

[0025] The upright plates 2 have an inner edge section 23 on the upper side and an outer edge section 24 on the lower side. The inner edge section 23 is formed as a circular arc along the outer circumferential surface 111A of the valve main body 111 of the four-way diverting valve main body 101, forming a recess when viewed from the side of the four-way diverting valve main body 101. The outer edge section 24 has a section formed as a circular arc along an outer circumferential surface 120A of the valve main body 120 of the electromagnetic actuator unit 102, forming a recess when viewed from the side of the electromagnetic actuator unit 102. Furthermore, the outer edge section 24 has a section extending linearly along the Y-direction on both sides of the circular arc section.

[0026] The ceiling plate section 3 connects the outer edge sections 24 of the pair of upright plates 2 and has a curved surface section 3A that connects the arc-shaped sections of the outer edge sections 24, and a pair of flat surface sections 3B that connect the linear sections. The curved surface section 3A is formed in a curved surface shape (part of the cylinder) along the outer circumferential surface 120A of the valve main body 120 of the electromagnetic drive unit 102, and the pair of flat surface sections 3B extends on both sides of the Y-direction of the curved surface section 3A along the XY plane. That is, the curved surface section 3A forms a recess when viewed from the side of the electromagnetic drive unit 102.Here, the outer edge sections 24 and the ceiling slab section 3 are smoothly connected to each other, and the circular arc along which the outer edge sections 24 run becomes part of the cylinder along which the curved surface section 3A runs.

[0027] The ceiling panel section 3 has an upwardly directed contact surface 31 in the curved surface section 3A and a plurality of projections 32 (four in the present embodiment), which are recesses projecting from the contact surface 31, and it has notches 33 in each pair of flat surface sections 3B. When the valve main body 120 is placed on the top of the ceiling panel section 3, the outer circumferential surface 120A does not come into contact with the contact surface 31, but with the projections 32. The four projections are arranged in the four corners of the ceiling panel section 3, which is rectangular when viewed from above (see figure). Fig. 6).

[0028] In the planar surface sections 3B, notches 33 are formed in the end edge extending along the X-direction. In the electromagnetic drive unit 102, a projecting section (e.g., a valve seat section) with a larger diameter than others, or a conduit, is arranged in the notches 33. In the electromagnetic drive unit 102, the valve seat section can be designed to project only from one side of the Y-direction, whereby the valve seat section can also be arranged in a notch 33 by forming notches 33 on both sides even if the direction of the support 1 is reversed by 180 degrees. The shape of the notches 33 is not limited to a rectangular shape as shown in Fig. 6 is limited, but it can also be a V-shaped or U-shaped shape.

[0029] The pair of foot sections 4 each adjoins the inner edge section of the pair of upright plates 2 and is formed in a curved surface shape extending along the outer circumferential surface 111A of the valve main body 111 of the four-way diverter valve main body 101. The inner edge sections 23 and the foot sections 4 are smoothly connected to each other, and the arc of the circle along which the inner edge sections extend becomes part of the cylinder along which the foot sections 4 extend. The foot sections 4 further extend in the X-direction towards the side moving away from the other upright plate 2, i.e., towards the side opposite the projection 22 (i.e., towards the side of the recess).

[0030] In the bracket 1 described above, the inner edge sections 23 and the base sections 4 are connected, for example, by soldering to the outer circumferential surface 111A of the valve main body 111 of the four-way diverter valve main body 101, and the outer edge sections 24 and the ceiling plate section 3 are connected, for example, by soldering to the outer circumferential surface 120A of the valve main body 120 of the electromagnetic actuator unit 102. This secures the electromagnetic actuator unit 102 to the four-way diverter valve main body 101 via the bracket 1. The exact shape of the connection points and the specific connection method are explained below.

[0031] The degree of curvature of the inner edge sections 23 and the base sections 4 is smaller than the degree of curvature of the outer circumferential surface 111A of the valve main body 111 of the four-way diverter valve main body 101. This means that the inner edge sections 23 and the base sections 4 have a gentler curvature than the outer circumferential surface 111A. As a result, partial contact occurs when the inner edge sections 23 and base sections 4 come into contact with the outer circumferential surface 111A. Specifically, when the outer circumferential surface 111A is brought into contact with a middle section in the Y-direction (i.e., a middle section in the circumferential direction) of the inner edge sections 23 and foot sections 4, these connection points are centered on both sides in the Y-direction between the inner edge sections 23 and foot sections 4 and the outer circumferential surface 111A, creating gaps.

[0032] When the inner edge sections 23 and foot sections 4 are connected to the outer circumferential surface 111A by soldering, the solder material flows into these spaces.

[0033] The degree of curvature of the circular arc section of the outer edge sections 24 and the contact surface 31 is greater than the degree of curvature of the outer circumferential surface 120A of the valve main body 120 of the electromagnetic actuator unit 102. That is, the circular arc section of the outer edge sections 24 and the contact surface 31 has a steeper curvature than the outer circumferential surface 120A. As shown in Fig. As shown in Figure 7, projections 32 are provided on both sides of a central section 3C of the contact surface 31 in the Y direction (i.e., the central section in the circumferential direction).

[0034] By adjusting the curvature to the degree specified above, it is ensured that when the outer circumferential surface 120A contacts the projections 32 on both sides of the central section 3C, the outer circumferential surface 120A does not contact the contact surface 31 between the projections 32. That is, the gap between the outer circumferential surface 120A and the contact surface 31 increases towards the central section 3C between the projections 32. The curvature difference specified above is set such that the outer circumferential surface 120A does not contact the end sections of the contact surface 31 in the Y-direction or the flat surface sections 3B.

[0035] After the projections 32 have been provisionally fixed by resistance welding in a state where they are in contact with the outer circumferential surface 120A as described above, soldering can be carried out for proper fixation. If the arcuate section of the outer edge segments 24 and the contact surface 31 are joined to the outer circumferential surface 120A by soldering, the solder material flows into the spaces formed as described above between the contact surface 31 and the outer circumferential surface 120A.

[0036] According to the present embodiment, the fact that the upright plates 2 are formed with a curved surface shape, compared to a design in which they extend in a flat surface shape along the YZ plane, reduces deformation in the form of collapse when forces act on the upright plates 2 in the X direction. By supporting the valve main body 120 of the electromagnetic drive unit 102 by means of the outer edge sections 24 of such a pair of upright plates 2, vibrations of the electromagnetic drive unit 102 (in particular vibrations in the X direction) can be suppressed.

[0037] Furthermore, by forming the upright plates 2 with a curved surface shape and improving their stiffness, the resonant frequency can be increased, thereby simplifying the design of the four-way diverter valve main body 101 and the electromagnetic actuator unit 102. Since, as described above, vibration of the electromagnetic actuator unit 102 can be suppressed, the upright plates 2 can be made thin-walled, thus reducing costs.

[0038] Since the inner edge sections 23 of the upright plates 2 are formed in a circular arc along the outer circumferential surface 111A of the valve main body 111 of the four-way diverting valve main body 101, when connecting the bracket 1 to the valve main body 111, e.g. by soldering, the contact area between them is increased and the connection stability is easily ensured.

[0039] Furthermore, because the degree of curvature of the inner edge sections 23 is smaller than the degree of curvature of the outer circumferential surface 111A, a small gap can be formed between the outer circumferential surface 111A and the inner edge sections 23, into which solder material can seep, and the connection stability can be improved.

[0040] Since the bracket 1 includes the foot sections 4, the contact area between the bracket 1 and the valve main body 111 can be increased, for example by soldering, thus ensuring connection stability. Furthermore, the fact that the foot sections 4 intersect the upright plates 2 prevents the upright plates 2 from bending (causing the pair of end edge sections 21 to move closer together or further apart).

[0041] Furthermore, because the ceiling plate section 3 has a contact surface 31 which runs in a curved surface shape along the valve main body 120 of the electromagnetic drive unit 102 and points towards the side of the valve main body 120, the contact surface between the bracket 1 and the valve main body 120 can be increased and the connection stability ensured when connecting the bracket 1 to the valve main body 120, e.g. by soldering.

[0042] Furthermore, because the ceiling panel section 3 has a majority of projections 32 extending from the mounting surface 31, a gap can be formed between the mounting surface 31 and the valve main body 120. During soldering, solder can seep into this gap, thus improving the connection stability. Additionally, the projections 32 and the valve main body 120 can be temporarily fixed by resistance welding, thereby improving machinability.

[0043] Furthermore, by having a greater degree of curvature of the contact surface 31 than the degree of curvature of the valve main body 120, and by forming projections 32 on both sides with the central section 3C in the circumferential direction, in a state in which the valve main body 120 and the projections 32 are in contact, a gap is easily ensured between the central section 3C in the circumferential direction and the valve main body 120, and a welding resistance as specified above is easily achieved.

[0044] Furthermore, because the ceiling plate section 3 has notches 33 in the end edge running along the X direction, a protruding section or a line formed with a larger diameter than others can be arranged in the notches of the electromagnetic drive unit 102 and prevented from interfering with the support 1.

[0045] Furthermore, by forming the pair of upright plates 2, the ceiling plate section 3 and the pair of foot sections 4 from a single plate material in one piece, the support 1 can be formed by plastically deforming the plate material, e.g. by processing with a press, and the manufacturing costs can be reduced.

[0046] The present invention is not limited to the foregoing embodiment; it also includes other structures by which the object of the present invention can be achieved, including the modifications described below. In the foregoing embodiment, for example, the degree of curvature of the inner edge sections 23 is provided to be smaller than the degree of curvature of the outer circumferential surface 111A of the valve main body 111 of the four-way diverter valve main body 101. However, the degree of curvature can also be the same for both, or the degree of curvature of the inner edge sections can also be somewhat greater. That is, the difference in the degree of curvature can be adjusted so that mutual connection is possible.

[0047] In the above embodiment, the foot sections 4 of the pair of upright plates 2 extend such that they diverge from one another. However, the foot sections can also extend so that they approach each other, or so that they extend in the same direction along the axes. Furthermore, the foot sections can also extend to the side that forms the curvature of the upright plates. If, moreover, the thickness of the upright plates is sufficiently large to ensure a secure connection with the outer circumferential surface 111A and to prevent significant deformation of the upright plates, the foot sections can also be omitted.

[0048] In the preceding embodiment, the inner edge sections 23 of the upright plates 2 are formed entirely as circular arcs, but they can also be formed only partially as circular arcs. Depending on the aspects and connection structures with which the bracket supports the main body of the four-way diverter valve, the inner edge sections may also not have a circular arc shape. For example, sections on the bracket and the main body of the valve may be provided that engage with each other.

[0049] In the above embodiment, the degree of curvature of the contact surface 31 was further provided to be greater than the degree of curvature of the valve main body 120; however, the degree of curvature can also be the same for both, or the degree of curvature of the contact surface can also be somewhat smaller. That is, the difference in the degree of curvature should be adjusted so that mutual connection is possible.

[0050] In the above embodiment, a ceiling panel section 3 is further provided which has a plurality of projections 32 that protrude from the mounting surface 31, whereby a design is also possible in which the projections are omitted and the entire mounting surface comes into contact with the cylindrical element of the electromagnetic drive unit.

[0051] In the foregoing embodiment, a ceiling panel section 3 is further provided, which has a contact surface 31 extending in a curved shape along the main valve body 120 of the electromagnetic drive unit 102 and pointing towards the side of the main valve body 120. Depending on the aspects and connection structures with which the bracket supports the cylindrical element of the electromagnetic drive unit, the ceiling panel section may also not have a contact surface with a curved shape. For example, sections may also be provided on the bracket and the cylindrical element that engage with each other.

[0052] In the above embodiment, the pair of upright plates 2, the ceiling plate section 3 and the pair of foot sections 4 were formed in one piece from a single plate material, but the support can also be formed by joining a plurality of plate materials.

[0053] Furthermore, in the above embodiment, a ceiling panel section 3 was used in which a notch 33 is formed on both sides at the end edges; however, a notch can also be formed in only one end edge. Depending on the shape of the respective sections of the electromagnetic drive unit, no notch may be formed if interference is unlikely to occur.

[0054] In the above embodiment, the bracket 1 is further provided with the ceiling plate section 3; however, a design is also possible in which the ceiling plate section is omitted and the cylindrical element of the electromagnetic drive unit is supported only by the upright plates. Vibrations of the electromagnetic drive unit can also be suppressed by such a design, since the upright plates are only slightly deformable, and the cylindrical element between the pair of upright plates is also only slightly deformable.

[0055] In the preceding embodiment, the upright plates 2 were formed as a whole as a curved surface section; however, only a portion of the upright plates can also be formed as a curved surface section. The shape of the curved surface section is not limited to a curvature towards the side of the other upright plate, as in the preceding embodiment, but can also be a curvature towards the opposite side or a wave shape with a plurality of projections. The shape of the curvature can be a smoothly curved surface or a shape with a tapered apex.

[0056] In the case of upright plates, combining multiple flat plate sections can result in a curvature to one side of the axis direction. V-shaped upright plates can be formed, for example, by combining two flat plate sections inclined to the YZ plane. Alternatively, stepped upright plates, viewed in the Z direction, can be formed by combining a flat plate section extending along the YZ plane with a flat plate section extending along the ZX plane. If the upright plates have a section with a curvature to one side of the X direction (axis direction), even if a flat plate section is included, it will form a surface inclined to the YZ plane by rotation about the Z direction. Therefore, deformation in the form of collapse can be suppressed when forces act in the X direction.

[0057] Furthermore, the upright plates need not have a curvature on one side of the axis direction; it suffices if they comprise a surface inclined to the YZ plane (surface orthogonal to the axis direction) by rotation about the Z-direction (opposite direction to the valve body and cylindrical element). For example, the pair of upright plates can have an inclination towards the Y-direction, such that they approach each other in the X-direction from one side of the Y-direction to the other.

[0058] The above descriptions of ways to implement the present invention have been explained in detail with reference to the drawings, whereby the specific structure is not limited to these ways of implementation and the present invention also includes design changes in an area that does not deviate from the essential nature of the present invention. [List of reference symbols] 1 bracket 2 upright plate (curved surface section) 23 Inner edge section 24 Outer edge section 3 Ceiling slab section 31 Mounting surface 32 lead 33 notch 4 foot section 100 refrigeration cycle 101 Four-way diverter valve main body (gate diverter valve main body) 111 Valve main body 111A External perimeter area 102 electromagnetic drive unit 120 Valve main body (cylindrical element) 103 compressors 104 Heat exchanger outdoor unit (first heat exchanger) 105 Heat exchanger indoor unit (second heat exchanger) 106 Expansion valve (expansion medium) 200 Slide valve QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2010-112437 A

[0003]

Claims

[1] Slide valve comprising a slide valve main body, an electromagnetic actuator unit by which switching control of a flow path can be carried out by means of a sliding movement of a valve body of the slide valve main body, and a support by which the electromagnetic actuator unit is attached to the slide valve main body, characterized by, that the slide-type changeover valve main body has a cylindrical valve main body that receives the valve body, the electromagnetic drive unit has an intake element, a coil exciting the intake element, a plunger moved by the intake element, and a cylindrical element that receives the plunger and the intake element, the support attaching the cylindrical element to an outer circumferential surface of the valve main body such that axes of the valve main body and the cylindrical element run parallel to each other, and comprising a pair of upright plates extending from the outer circumferential surface to an outer circumferential side and arranged side by side in the direction of the axes, the upright plates extending along a surface intersecting the direction of the axes, supporting the cylindrical element on the outer circumferential side, and having a curved surface section having at least one section,which becomes a bulge on one side of the direction of the axes. [2] Slide valve according to claim 1, characterized by , that in the upright plates an inner edge section of the side of the slide-type diverter valve main body has a circular arc-shaped section running along the outer circumferential surface. [3] Slide valve according to claim 2, characterized by , that in the inner edge section the degree of curvature of the circular arc section is smaller than the degree of curvature of the outer circumferential surface. [4] Slide valve according to claim 2, characterized by , that foot sections are also included, which are directed from the inner edge section to one side of the direction of the axes and run along the outer circumferential surface. [5] Slide valve according to claim 1, characterized by, that it also includes a ceiling panel section which connects the outer edge sections of the pair of upright panels on the side of the magnetic drive unit, and the ceiling panel section has a contact surface extending in a curved surface shape along the cylindrical element and pointing towards the side of the cylindrical element. [6] Slide valve according to claim 5, characterized by that the ceiling slab section has a plurality of protrusions that extend from the mounting surface. [7] Slide valve according to claim 6, characterized by , that the degree of curvature of the contact surface is greater than the degree of curvature of the cylindrical element, and taking the middle section in its circumferential direction to the center, at least one of the projections is provided on both sides. [8] Slide valve according to claim 5, characterized by, that the ceiling slab section has a notch at at least one of the pair of end edges running along the direction of the axes. [9] Slide valve according to claim 5, characterized by , that at least the pair of upright slabs and the ceiling slab section are formed from a single slab material in one piece. [10] Refrigeration system, characterized by , comprising a compressor that compresses a coolant as a fluid, a first heat exchanger that functions as a condenser in cooling mode, a second heat exchanger that functions as an evaporator in cooling mode, an expansion agent that expands and decompresses the coolant between the first heat exchanger and the second heat exchanger, and a slide valve according to claim 1.

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