JP7387000B2 - Heat exchanger and refrigeration cycle equipment - Google Patents

Description

The present disclosure relates to a heat exchanger and a refrigeration cycle device equipped with the heat exchanger, and particularly relates to a structure that suppresses buckling of a heat transfer member.

In recent years, aluminum flat tubes have been increasingly used as heat exchanger tubes in heat exchangers for refrigeration and air conditioning equipment, replacing conventional copper round tubes, with the aim of improving the performance and weight of refrigeration cycle equipment. . In addition, in recent years, reducing the amount of refrigerants used, which have a high global warming potential, has become an important issue. There is a need for the development of high-performance heat exchangers.

For example, in order to further reduce the internal volume of the flat tubes compared to conventional heat exchangers using flat aluminum tubes, the short axis length of the flat tubes is set to less than 1 mm, and multiple flat tubes are connected to a header pipe. A heat exchanger connected in parallel along the axial direction has been proposed (for example, see Patent Document 1). Note that the short axis length is the length in the short direction in a vertical cross section of the flat tube. In the heat exchanger of Patent Document 1, an auxiliary member extending along the arrangement direction of the refrigerant flow paths is provided between adjacent flat tubes to maintain a distance between the adjacent flat tubes.

JP 2018-162953 Publication

However, in the heat exchanger of Patent Document 1, it is difficult to suppress buckling of the flat tube in the tube axis direction only by including a single reinforcing member. In addition, although the heat exchanger can suppress buckling of the flat tube in the tube axis direction by providing a plurality of reinforcing members, there is a problem that drainage performance and ventilation performance of condensed water are deteriorated.

The present disclosure is intended to solve the above-mentioned problems, and to provide a heat exchanger and a refrigeration cycle device that can suppress buckling of a flat tube in the tube axis direction without impairing drainage and ventilation. With the goal.

The heat exchanger according to the present disclosure includes a plurality of heat transfer members that are arranged in a first direction at intervals, extend in a second direction, and allow a refrigerant to flow therein; a first header connected to one end of each of the heat transfer members; a second header extending in the first direction and connected to the other end of each of the plurality of heat transfer members; a frame member that extends along a second direction and forms an outer peripheral edge, a partition that partitions an inner area of the frame member, and a reinforcing member that includes an opening; When the vertical direction is a third direction, the reinforcing member is configured in a net shape by combining the frame member and the partition, and is arranged in at least one of the third direction with respect to the plurality of heat transfer members. , fixed to the first header and the second header.

A refrigeration cycle device according to the present disclosure includes a heat exchanger according to the present disclosure.

According to the present disclosure, in the heat exchanger, the reinforcing member arranged along the first direction in which the plurality of heat transfer members are arranged in parallel and the second direction in which the plurality of heat transfer members extend is connected to the first header and the reinforcing member arranged along the second direction in which the plurality of heat transfer members extend. Fixed to 2 headers. Therefore, the reinforcing member maintains the distance between the first header and the second header in the tube axis direction of the plurality of heat transfer members, that is, in the second direction, and prevents the plurality of heat transfer members from buckling in the axial direction. can be suppressed.

1 is a refrigerant circuit diagram showing the configuration of a refrigeration cycle device 100 including a heat exchanger 10 according to Embodiment 1. FIG. 1 is a perspective view of a heat exchanger 10 according to Embodiment 1. FIG. 1 is a side view of heat exchanger 10 according to Embodiment 1. FIG. It is a modification of the fixing portion between the reinforcing member 20 and the header 12 of the heat exchanger 10 according to the first embodiment. FIG. 2 is a perspective view of a heat exchanger 10a that is a modification of the heat exchanger 10 according to the first embodiment. 7 is a side view of a heat exchanger 10a that is a modification of the heat exchanger 10 according to the second embodiment. FIG. FIG. 3 is a perspective view of a heat exchanger 10b that is a modification of the heat exchanger 10 according to the first embodiment. 8 is a front view of the reinforcing member 20b of the heat exchanger 10b of FIG. 7. FIG. FIG. 2 is a perspective view of a heat exchanger 210 according to a second embodiment. FIG. 3 is a top view of a heat exchanger 210 according to a second embodiment. FIG. 3 is a perspective view of a heat exchanger 310 according to Embodiment 3. FIG. 7 is a top view of a heat exchanger 310 according to Embodiment 3. FIG. 4 is a perspective view of a heat exchanger 410 according to Embodiment 4. FIG. 4 is a side view of a heat exchanger 410 according to Embodiment 4. 5 is a perspective view of a heat exchanger 510 according to Embodiment 5. FIG. 5 is a top view of a heat exchanger 510 according to Embodiment 5. FIG. 5 is a side view of a heat exchanger 510 according to Embodiment 5. FIG.

Hereinafter, a heat exchanger and a refrigeration cycle device according to Embodiment 1 will be described with reference to the drawings and the like. Note that in the following drawings including FIG. 1, the relative dimensional relationships, shapes, etc. of each component may differ from the actual ones. In addition, in the following drawings, parts with the same reference numerals are the same or equivalent, and this is common throughout the entire specification. In addition, to facilitate understanding, we use terms that indicate directions (for example, "top", "bottom", "right", "left", "front", "back", etc.), but these notations are as follows: This is only described for convenience of explanation, and does not limit the arrangement or orientation of the device or parts. In the specification, the positional relationship between each component, the stretching direction of each component, and the arrangement direction of each component are, in principle, those when the heat exchanger is installed in a usable state.

Embodiment 1.
(Refrigerating cycle device 100)
FIG. 1 is a refrigerant circuit diagram showing the configuration of a refrigeration cycle device 100 including a heat exchanger 10 according to the first embodiment. In addition, in FIG. 1, arrows indicated by dotted lines indicate the direction in which the refrigerant flows in the refrigerant circuit 110 during cooling operation, and arrows indicated by solid lines indicate the direction in which the refrigerant flows during heating operation. . First, a refrigeration cycle device 100 including a heat exchanger 10 will be described using FIG. In this embodiment, an air conditioner is illustrated as the refrigeration cycle device 100, but the refrigeration cycle device 100 is, for example, a refrigerator, a freezer, a vending machine, an air conditioner, a refrigeration device, a water heater, etc. Used for applications or air conditioning applications. Note that the illustrated refrigerant circuit 110 is an example, and the structure of the circuit elements is not limited to the content described in the embodiment, and can be modified as appropriate within the scope of the technology related to the embodiment. .

The refrigeration cycle device 100 has a refrigerant circuit 110 in which a compressor 101, a flow path switching device 102, an indoor heat exchanger 103, a pressure reducing device 104, and an outdoor heat exchanger 105 are connected in an annular manner via refrigerant piping. . A heat exchanger 10 described later is used as at least one of the outdoor heat exchanger 105 and the indoor heat exchanger 103. The refrigeration cycle device 100 includes an outdoor unit 106 and an indoor unit 107. The outdoor unit 106 houses a compressor 101, a flow path switching device 102, an outdoor heat exchanger 105, a pressure reducing device 104, and an outdoor blower 108 that supplies outdoor air to the outdoor heat exchanger 105. The indoor unit 107 houses an indoor heat exchanger 103 and an indoor blower 109 that supplies air to the indoor heat exchanger 103. The outdoor unit 106 and the indoor unit 107 are connected via two extension pipes 111 and 112, which are part of the refrigerant pipes.

The compressor 101 is a fluid machine that compresses and discharges the refrigerant that it sucks in. The flow path switching device 102 is, for example, a four-way valve, and is a device that switches the refrigerant flow path between cooling operation and heating operation under the control of a control device (not shown).

The indoor heat exchanger 103 is a heat exchanger that exchanges heat between the refrigerant flowing therein and the indoor air supplied by the indoor blower 109. The indoor heat exchanger 103 functions as a condenser during heating operation, and functions as an evaporator during cooling operation.

The pressure reducing device 104 is, for example, an expansion valve, and is a device that reduces the pressure of the refrigerant. As the pressure reducing device 104, an electronic expansion valve whose opening degree is adjusted by control of a control device can be used.

The outdoor heat exchanger 105 is a heat exchanger that exchanges heat between the refrigerant flowing therein and the air supplied by the outdoor blower 108. The outdoor heat exchanger 105 functions as an evaporator during heating operation, and functions as a condenser during cooling operation.

(Operation of refrigeration cycle device 100)
Next, an example of the operation of the refrigeration cycle device 100 will be described using FIG. 1. During heating operation of the refrigeration cycle device 100, the high-pressure, high-temperature gaseous refrigerant discharged from the compressor 101 flows into the indoor heat exchanger 103 via the flow path switching device 102, and is replaced with air supplied by the indoor blower 109. It exchanges heat with and condenses. The condensed refrigerant becomes a high-pressure liquid state, flows out from the indoor heat exchanger 103, and becomes a low-pressure gas-liquid two-phase state by the pressure reducing device 104. The low-pressure gas-liquid two-phase refrigerant flows into the outdoor heat exchanger 105 and is evaporated by heat exchange with the air supplied by the outdoor blower 108 . The evaporated refrigerant becomes a low-pressure gas and is sucked into the compressor 101.

During the cooling operation of the refrigeration cycle device 100, the refrigerant flowing through the refrigerant circuit 110 flows in the opposite direction to that during the heating operation. That is, during cooling operation of the refrigeration cycle device 100, high-pressure, high-temperature gaseous refrigerant discharged from the compressor 101 flows into the outdoor heat exchanger 105 via the flow path switching device 102, and is supplied by the outdoor blower 108. It exchanges heat with the air and condenses. The condensed refrigerant becomes a high-pressure liquid state, flows out from the outdoor heat exchanger 105, and becomes a low-pressure gas-liquid two-phase state by the pressure reducing device 104. The low-pressure gas-liquid two-phase refrigerant flows into the indoor heat exchanger 103 and is evaporated by heat exchange with the air supplied by the indoor blower 109 . The evaporated refrigerant becomes a low-pressure gas and is sucked into the compressor 101.

(Heat exchanger 10)
FIG. 2 is a perspective view of the heat exchanger 10 according to the first embodiment. FIG. 3 is a side view of the heat exchanger 10 according to the first embodiment. The heat exchanger 10 according to the first embodiment will be described using FIGS. 2 and 3.

As shown in FIG. 2, the heat exchanger 10 includes a plurality of heat transfer members 11, a first header 12a and a second header 12b connected to the ends of the plurality of heat transfer members 11, and a first header 12a and a second header 12b connected to the ends of the plurality of heat transfer members 11. A reinforcing member 20 fixed to the second header 12b is provided. A plurality of heat transfer members 11 are arranged in the X direction. Further, the plurality of heat transfer members 11 are arranged with their tube axes along the Y direction. In the first embodiment, the Y direction is parallel to the direction of gravity. However, the arrangement of the heat exchanger 10 is not limited to this, and may be arranged with the Y direction inclined with respect to the direction of gravity. Further, the plurality of heat transfer members 11 are spaced at equal intervals, and are arranged at intervals of a width w1 in the X direction.

A first header 12a is connected to one end of the plurality of heat transfer members 11 in the tube axis direction. Further, a second header 12b is connected to the other end of the plurality of heat transfer members 11 in the tube axis direction. The first header 12a and the second header 12b are arranged with their longitudinal directions facing in the parallel direction of the plurality of heat transfer members 11. The longitudinal directions of the first header 12a and the second header 12b are parallel to each other. In the following description, the first header 12a and the second header 12b may be collectively referred to as the header 12.

The ends of the plurality of heat transfer members 11 are each inserted into the header 12, and are joined by a joining means such as brazing. Moreover, the plurality of heat transfer members 11 are both arranged in parallel in the X direction. In the plurality of heat transfer members 11, the heat transfer portion 14, which is a portion other than the end portion, is located between the lower surface of the first header 12a and the upper surface of the second header 12b.

The reinforcing member 20 is arranged parallel to the X direction and the Y direction, and is arranged in the Z direction of the plurality of heat transfer members 11. Air flows through the heat exchanger 10 along the Z direction. That is, the plurality of heat transfer members 11 and reinforcing members 20 are arranged in series in the direction in which the air flowing into the heat exchanger 10 flows. In the first embodiment, the reinforcing member 20 is arranged to cover one surface of the plurality of heat transfer members 11 in the Z direction. Note that the X direction in which the plurality of heat transfer members 11 are arranged in parallel is the first direction, the Y direction which is the tube axis direction of the plurality of heat transfer members 11 is the second direction, and the Z direction perpendicular to the X direction and the Y direction is the third direction. Sometimes referred to as direction.

(Heat transfer member 11)
Each of the plurality of heat transfer members 11 allows a refrigerant to flow therein. Each of the plurality of heat transfer members 11 extends between the first header 12a and the second header 12b. Each of the plurality of heat transfer members 11 is arranged at intervals w1 from each other in the X direction, and arranged in parallel along the extending direction of the header 12. Each of the plurality of heat transfer members 11 has an oval, elliptical, or rectangular cross-sectional shape, and is arranged with the long axis of the cross-sectional shape along the Z direction. Side surfaces 15 along the long axis of the cross-sectional shape of the plurality of heat transfer members 11 are arranged to face each other. A gap serving as an air flow path is formed between opposing side surfaces 15 of two adjacent heat transfer members 11 among the plurality of heat transfer members 11. In the heat exchanger 10 of the first embodiment, a plurality of flat tubes are used as the plurality of heat transfer members 11, but the heat exchanger 10 is not limited to only flat tubes. For example, the heat transfer member 11 may be formed by connecting a plurality of thin circular tubes to each other in the Z direction using a plate-like member.

In the heat exchanger 10, the X direction, which is the direction in which the plurality of heat transfer members 11 are arranged, is the horizontal direction. However, the arrangement direction of the plurality of heat transfer members 11 is not limited to the horizontal direction, but may be a vertical direction or a direction inclined with respect to the vertical direction. Similarly, in the heat exchanger 10, the extending direction of the plurality of heat transfer members 11 is the vertical direction. However, the extending direction of the plurality of heat transfer members 11 is not limited to the vertical direction, and may be a horizontal direction or a direction inclined with respect to the vertical direction.

The side surfaces 15 of two adjacent heat transfer members 11 among the plurality of heat transfer members 11 are not connected to each other by a heat transfer promoting member. The heat transfer promoting member is, for example, a plate fin or a corrugated fin. That is, the plurality of heat transfer members 11 are connected to each other only by the header 12.

(Header 12)
The first header 12a and the second header 12b each extend in the X direction, and are configured so that the refrigerant flows therein. As shown in FIG. 2, for example, the refrigerant flows into the refrigerant flow pipe 42 connected to one end of the second header 12b, and is distributed to each of the plurality of heat transfer members 11. The refrigerant that has passed through the plurality of heat transfer members 11 joins together at the first header 12a, and flows out from the refrigerant flow pipe 41 connected to one end of the first header 12a.

In FIGS. 2 and 3, the outer shape of the header 12 is cylindrical, but the shape is not limited. The outer shape of the header 12 may be, for example, a rectangular cylinder or an elliptical cylinder, and the cross-sectional shape can also be changed as appropriate. Further, the structure of the header 12 may be, for example, a cylindrical body with both ends closed, a laminated plate-like body with slits formed therein, or the like. The first header 12a and the second header 12b are each formed with a refrigerant inlet through which refrigerant can flow in and out.

(Reinforcing member 20)
As shown in FIG. 3, in the heat exchanger 10, the reinforcing member 20 is arranged to cover one of the plurality of heat transfer members 11 in the Z direction. That is, the reinforcing member 20 is arranged with its surface along the X direction and the Y direction facing the plurality of heat transfer members 11. As shown in FIG. 2, the reinforcing member 20 is provided with an opening 25 on a surface along the X direction and the Y direction so that fluid can pass therethrough in a direction perpendicular to the surface, that is, in the Z direction.

The reinforcing member 20 has a rectangular shape when viewed from the Z direction, and includes a frame member 21 that forms an outer peripheral edge, and a partition member 22 that partitions an area inside the frame member 21 into a plurality of regions. The frame members 21 of the reinforcing member 20 include a first frame member 21a arranged along the first header 12a, a second frame member 21b arranged along the second header 12b, and a first frame member 21a. and two third frame members 21c that connect both ends of the second frame member 21b. The first frame member 21a, the second frame member 21b, and the two third frame members 21c are combined into a rectangular shape. The first frame member 21a and the second frame member 21b form opposing sides of the rectangular frame member 21. The two third frame members 21c also form opposing sides of the rectangular frame member 21.

In the reinforcing member 20 of the first embodiment, the partition member 22 includes a first partition member 22a extending in the X direction and a second partition member 22b extending in the Y direction. The partition member 22 is arranged to partition the area inside the frame member 21 into a plurality of areas. In the first embodiment, the first partition member 22a and the second partition member 22b are arranged orthogonally to each other and are combined in a net shape. That is, the reinforcing member 20 is formed into a net shape, and each mesh serves as an opening 25. The openings 25 are each formed from the partition members 22 or the partition members 22 and the frame member 21.

The reinforcing member 20 is configured to resist deformation in the XY plane by combining the frame member 21 and the partition member 22. Thereby, since the reinforcing member 20 is fixed to at least the first header 12a and the second header 12b, relative displacement between the first header 12a and the second header 12b can be suppressed, and the entire heat exchanger 10 is deformation can be suppressed. That is, buckling deformation of the plurality of heat transfer members 11 in the Y direction and falling in the X direction can be suppressed. In this way, the reinforcing member 20 allows the heat exchanger 10 to improve its strength with the addition of a minimum number of members.

The size of the opening 25 can be set as appropriate. By appropriately changing the interval between the partition members 22 in the first embodiment, the reinforcing member 20 can suppress foreign matter from flowing into the heat exchanger 10. Further, the reinforcing member 20 can protect the heat transfer member 11 during transportation of the heat exchanger 10 or the refrigeration cycle device 100 equipped with the heat exchanger 10.

The reinforcing member 20 is preferably made of a material that is stronger than the material that makes up the plurality of heat transfer members 11 . In the first embodiment, since the flat tube that is the heat transfer member 11 is made of aluminum, for example, the reinforcing member 20 is preferably made of a material having higher rigidity and strength than aluminum, such as stainless steel.

The heat exchanger 10 includes a fixing part to which the reinforcing member 20 and the header 12 are fixed. In the heat exchanger 10 shown in FIGS. 2 and 3, the reinforcing member 20 and the header 12 are joined by, for example, welding. The fixing portion may also be fixed by being fixed, fitted, or locked with a fastening member such as a bolt.

FIG. 4 shows a modification of the fixing portion between the reinforcing member 20 and the header 12 of the heat exchanger 10 according to the first embodiment. The fixing part 30 according to the modified example includes the first frame member 21a of the reinforcing member 20 and engaging parts 31a and 31b provided on the first header 12a. The fixing parts 30 are arranged at four corners of the rectangular reinforcing member 20 and fix the reinforcing member 20 to the header 12 . As shown in FIG. 4, the fixing part 30 is fitted so that the first frame member 21a of the reinforcing member 20 is held by the engaging parts 31a and 31b. The first frame member 21a is prevented from moving in the Y direction and the Z direction by engaging portions 31a and 31b. Further, the fixing part 30 is arranged near both ends of the first frame member 21a in the X direction, and the third frame member 21c connected at both ends of the first frame member 21a is caught by the engaging part 31b. , suppresses displacement of the reinforcing member 20 in the X direction.

The fixing portion 30 is just one example, and the reinforcing member 20 and the header 12 may be fixed to each other in combination with fixing using a fastening member such as a bolt.

(Modified example)
FIG. 5 is a perspective view of a heat exchanger 10a that is a modification of the heat exchanger 10 according to the first embodiment. FIG. 6 is a side view of a heat exchanger 10a that is a modification of the heat exchanger 10 according to the second embodiment. As shown in FIGS. 5 and 6, in the heat exchanger 10a according to the modification, reinforcing members 20 are arranged on both sides of the plurality of heat transfer members 11 in the Z direction. That is, both sides of the heat exchanger 10a in the Z direction, that is, the front and back sides, are both formed by the reinforcing member 20.

The two reinforcing members 20 are fixed to both surfaces of the first header 12a and the second header 12b in the Z direction. The two headers 12 are connected by two reinforcing members 20, and the strength of the heat exchanger 10 according to the first embodiment can be improved.

Further, the reinforcing member 20 covers both sides of the plurality of heat transfer members 11 in the Z direction. Therefore, the reinforcing member 20 can suppress the entry of foreign matter from both sides in the Z direction, and can protect the plurality of heat transfer members 11 when the heat exchanger 210 is being transported.

FIG. 7 is a perspective view of a heat exchanger 10b that is a modification of the heat exchanger 10 according to the first embodiment. FIG. 8 is a front view of the reinforcing member 20b of the heat exchanger 10b of FIG. 7. In the reinforcing member 20b of the heat exchanger 10b, which is a modified example, partition members 27a and 27b extend obliquely with respect to the X direction and the Y direction. As shown in FIG. 8, the partition member 27a and the partition member 27b are arranged to be perpendicular to each other. The opening 25 is formed by the inclined partition members 27a and 27b, or the partition members 27a and 27b and the frame member 21.

In the reinforcing member 20b, since the partition members 27a and 27b are arranged at an angle, drainage performance is high even when dew condensation occurs on the reinforcing member 20b. That is, when the heat exchanger 10b is arranged so that the Y direction is along the direction of gravity, water droplets adhering to the partition members 27a and 27b flow down along the slope due to the influence of gravity. Therefore, in the heat exchanger 10b, condensed water does not continue to accumulate in the partition members 27a and 27b. Therefore, accumulation of dew condensed water and frost formation due to freezing of the dew condensed water can be suppressed, and a decrease in ventilation of the heat exchanger 10b is suppressed.

Further, since the reinforcing member 20b is formed by combining the frame member 21 extending in the X direction and the Y direction and the inclined partition members 27a and 27b, the reinforcing member 20b has high strength against deformation within the XY plane. Therefore, the reinforcing member 20b of the heat exchanger 10b can improve the strength against deformation such that the plurality of heat transfer members 11 fall down in the X direction. Furthermore, with respect to the load in the direction in which the plurality of heat transfer members 11 buckle, not only the third frame member 21c but also the partition members 27a and 27b that are inclined with respect to the Y direction can receive the load. Therefore, the strength of the heat exchanger 10b is improved even against the load applied in the Y direction.

Embodiment 2.
Heat exchanger 210 according to Embodiment 2 will be described. Heat exchanger 210 is obtained by changing the shape of reinforcing members 20 and 20b of Embodiment 1. Note that components having the same functions and actions as those in Embodiment 1 are given the same reference numerals, and their explanations are omitted.

FIG. 9 is a perspective view of a heat exchanger 210 according to the second embodiment. FIG. 10 is a top view of heat exchanger 210 according to the second embodiment. In the heat exchanger 210 according to the second embodiment, reinforcing members 220 are arranged in the Z direction of the plurality of heat transfer members 11. The reinforcing member 220 has a different shape at both ends in the X direction than the reinforcing members 20 and 20b according to the first embodiment. The reinforcing member 220 is bent in opposite directions in the Z direction at both ends in the X direction. That is, the reinforcing member 220 includes first bent portions 24 extending in opposite directions in the Z direction at both ends in the X direction.

The reinforcing member 220 according to the second embodiment includes partition members 27a and 27b that are inclined with respect to the X direction and the Y direction, similarly to the reinforcing member 20b according to the first embodiment. The partition members 27a and 27b disposed on the surface of the reinforcing member 220 facing the Z direction are extended and disposed also in the first bent portion 24. Note that the partition members 27a and 27b may not be arranged in the first bent portion 24.

As shown in FIG. 10, when the heat exchanger 210 is viewed from above, the first bent portions 24 of the reinforcing member 220 are arranged to sandwich the header 12 in the X direction. The reinforcing member 220 is formed in a U-shape when viewed from above, and has high strength against deformation in the direction along the XZ plane. Further, the reinforcing member 220 is joined to the header 12, and the heat exchanger 210 is also prevented from deforming in the direction along the XZ plane.

The first frame member 21a and the second frame member 21b located at both ends of the reinforcing member 220 in the Y direction are bent at both ends in the X direction, and extend in opposite directions in the Z direction as a first bent portion 24. Further, the reinforcing member 220 includes a fourth frame member 21d that forms an end portion on the opposite side of the first bent portion 24 in the Z direction. A third frame member 21c is disposed at the end of the first bent portion 24 in the Z direction. Although the third frame member 21c may be omitted, the effect of reinforcing the heat exchanger 210 is higher when the third frame member 21c is present.

Since the reinforcing member 220 is provided with the first bent portion 24 extending along the Z direction at the end in the X direction, its rigidity is increased, so that the effect of reinforcing the heat exchanger 210 is increased. Furthermore, since the first bent portion 24 is formed at the end in the X direction, it does not impede ventilation of the heat exchanger 210.

In the second embodiment, the partition members 27a and 27b of the reinforcing member 220 are arranged at an angle like the reinforcing member 20b according to the first embodiment, so that the drainage effect is high and the strength can be improved. . Note that the partition members 27a and 27b of the reinforcing member 220 do not have to be arranged obliquely, and are arranged in the X direction and the Y direction similarly to the first partition member 22a and the second partition member 22b according to the first embodiment. They may be arranged along the same line.

Embodiment 3.
A heat exchanger 310 according to Embodiment 3 will be described. Heat exchanger 310 is obtained by changing the shape of reinforcing members 20 and 20b of Embodiment 1. Note that components having the same functions and actions as those in Embodiment 1 are given the same reference numerals, and their explanations are omitted.

FIG. 11 is a perspective view of a heat exchanger 310 according to the third embodiment. FIG. 12 is a top view of the heat exchanger 310 according to the third embodiment. Heat exchanger 310 includes reinforcing member 320 . As shown in FIG. 12, the reinforcing member 320 is bent in the Z direction at the end in the X direction. Similar to the heat exchanger 10a according to the first embodiment, the heat exchanger 310 is covered with reinforcing members 320 on both sides in the Z direction. In the reinforcing member 320, surfaces 320a and 320b disposed on both sides of the plurality of heat transfer members 11 in the Z direction are connected by a first bent portion 324. That is, the surfaces 320a and 320b connected by the first bent portion 324 are configured to sandwich the heat exchanger 310 from both sides in the Z direction. Note that the surface 320a may be referred to as a first portion, and the surface 320b may be referred to as a second portion.

The reinforcing member 320 is integrally formed, has a small number of parts, can reduce the cost of the heat exchanger 310, and can easily manufacture the heat exchanger 310.

The reinforcing member 320 in the third embodiment includes a partition member 27a that is inclined in one direction, and does not have a partition member 27b that intersects the partition member 27a. Since the partition member 27a is arranged continuously from the surface 320a to the surface 320b of the reinforcing member 320, when the heat exchanger 310 is viewed in the Z direction, the partition member 27a on the surface 320a and the partition member 27a on the surface 320b are different from each other. , which apparently intersect. Therefore, when the reinforcing member 320 is unfolded, the partition member 27a is arranged to be inclined in one direction over the entire reinforcing member 320, but when assembled to the heat exchanger 310, the partition member 27a The partition members 27a are arranged symmetrically in the inclination directions on the front and back surfaces of the partition member 27a. Therefore, the reinforcing member 320 similarly acts both when a force is applied to the heat exchanger 310 so that the plurality of heat transfer members 11 fall in the X direction, and when a force is applied to the heat exchanger 310 so that the heat transfer members 11 fall in the opposite direction. able to resist force.

Embodiment 4.
Heat exchanger 410 according to Embodiment 4 will be described. Heat exchanger 410 is obtained by changing the shape of reinforcing members 20 and 20b of Embodiment 1. Note that components having the same functions and actions as those in Embodiment 1 are given the same reference numerals, and their explanations are omitted.

FIG. 13 is a perspective view of a heat exchanger 410 according to the fourth embodiment. FIG. 14 is a side view of heat exchanger 410 according to the fourth embodiment. Heat exchanger 410 according to the fourth embodiment includes a reinforcing member 420. As shown in FIG. 14, the reinforcing member 420 is bent in the Z direction at the end in the Y direction. In the heat exchanger 410, both sides of the plurality of heat transfer members 11 in the Z direction are covered with reinforcing members 420, similarly to the heat exchanger 10a according to the first embodiment. The surfaces 420a and 420b of the reinforcing members 420 arranged in the Z direction of the plurality of heat transfer members 11 are connected by the second bent portion 28. That is, the reinforcing member 420 is arranged so as to sandwich the heat exchanger 410 from both sides in the Z direction, and the surface 420a and the surface 420b connected by the second bending part 28 sandwich the heat exchanger 410 in the Z direction. I'm here. Further, the second bent portion 28 extends in the Z direction along the upper surface of the first header 12a.

The reinforcing member 420 in Embodiment 4 includes a partition member 27a that is inclined in one direction, and does not have a partition member 27b that intersects the partition member 27a. Since the partition member 27a is arranged continuously from the surface 420a to the surface 420b of the reinforcing member 420, when the heat exchanger 410 is viewed in the Z direction, the partition member 27a on the surface 420a and the partition member 27a on the surface 420b are different from each other. , which apparently intersect. Therefore, when the reinforcing member 420 is unfolded, the partition member 27a is arranged to be inclined in one direction over the entire reinforcing member 420, but when assembled to the heat exchanger 410, the partition member 27a The partition members 27a are arranged symmetrically in the inclination directions on the front and back surfaces of the partition member 27a. Therefore, the reinforcing member 420 similarly acts both when a force is applied to the heat exchanger 410 so that the plurality of heat transfer members 11 fall in the X direction, and when a force is applied to the heat exchanger 410 so that the heat transfer members 11 fall in the opposite direction. able to resist force.

Embodiment 5.
Heat exchanger 510 according to Embodiment 5 will be described. Heat exchanger 510 is obtained by changing the shape of reinforcing members 20 and 20b of Embodiment 1. Note that components having the same functions and actions as those in Embodiment 1 are given the same reference numerals, and their explanations are omitted.

FIG. 15 is a perspective view of a heat exchanger 510 according to the fifth embodiment. FIG. 16 is a top view of heat exchanger 510 according to the fifth embodiment. FIG. 17 is a side view of heat exchanger 510 according to the fifth embodiment. The reinforcing member 520 of the heat exchanger 510 according to the fifth embodiment is configured to cover the front and back surfaces of the heat exchanger 510 similarly to the reinforcing member 320 of the heat exchanger 310 according to the third embodiment. . Further, the reinforcing member 520 includes a partition member 527a that is inclined in one direction. The partition members 527a are formed uniformly over the entire area of the reinforcing member 520, and are configured so that the partition members 527a intersect with each other on the front and back surfaces of the heat exchanger 510 when viewed from the Z direction. There is.

A protruding member 529 is provided on the partition member 527a disposed on the surface 520a of the reinforcing member 520. The protruding member 529 is a plate-shaped member, and is joined along each of the partition members 527a on the surface 520a. The protruding member 529 is preferably provided on the surface 520a into which air flows. In the fifth embodiment, air flows in the opposite direction in the Z direction. The protruding member 529 can also be used as a heat transfer surface, and can compensate for the lack of heat transfer area of the heat exchanger 510, which is a so-called finless heat exchanger.

As shown in FIG. 17, the plurality of heat transfer members 511 of the heat exchanger 510 each include a plate-shaped heat transfer plate 16 extending from each edge in the Z direction. The reinforcing member 520 may be in contact with or may be joined to the edge of the heat transfer plate 16 in the Z direction. With this configuration, the reinforcing member 520 and the heat transfer plate 16 are thermally connected, the heat exchanger 510 can use the reinforcing member 520 as a heat transfer surface, and the heat exchanger 510 can improve the strength of

In the reinforcing member 520, since the partition member 527a is inclined with respect to the X direction and the Y direction, condensed water does not accumulate on the protruding member 529, and ventilation of the heat exchanger 510 can be ensured. Further, for example, when the heat exchanger 510 is mounted on the refrigeration cycle device 100, the protruding member 529 of the reinforcing member 520 is disposed close to the outside of the refrigeration cycle device 100, so that the heat transfer member 11 and the header It can be configured such that corrosion occurs before 12. In particular, the reinforcing member 520 can be made to corrode preferentially by being made of a metal that has a higher ionization tendency than the heat transfer member 11 and the header 12. Therefore, the heat exchanger 510 can suppress corrosion of the heat transfer member 11, suppress refrigerant leakage due to corrosion, and reduce the thickness of the heat transfer member 11 and header 12, thereby reducing costs. becomes.

The present disclosure is not limited to the configurations described above. For example, heat exchangers 10, 10a, 10b, 210, 310, 410, and 510 according to Embodiments 1 to 5 may be configured by combining their respective features. As an example, the structure of the reinforcing member 20 having the partition members 27a and 27b of the heat exchanger 10b may be applied to the heat exchanger 310 and the like.

10 heat exchanger, 10a heat exchanger, 10b heat exchanger, 11 heat transfer member, 12 header, 12a first header, 12b second header, 14 heat transfer part, 15 side surface, 16 heat transfer plate, 20 reinforcing member, 20b reinforcing member, 21 frame member, 21a first frame member, 21b second frame member, 21c third frame member, 21d fourth frame member, 22 partition member, 22a
First partition member, 22b Second partition member, 24 First bent part, 25 Opening part, 27a Partition member, 27b Partition member, 28 Second bent part, 30 Fixed part, 30a Fixed part, 31a
engaging part, 31b engaging part, 41 refrigerant flow pipe, 42 refrigerant flow pipe, 100 refrigeration cycle device, 101 compressor, 102 flow path switching device, 103 indoor heat exchanger, 104 pressure reduction device, 105 outdoor heat exchanger, 106 outdoor unit, 107 indoor unit, 108 outdoor blower, 109 indoor blower, 110 refrigerant circuit, 111 extension piping, 112 extension piping, 210
Heat exchanger, 220 Reinforcement member, 310 Heat exchanger, 320 Reinforcement member, 320a surface, 320b surface, 324 First bent portion, 410 Heat exchanger, 420 Reinforcement member, 420a surface, 420b surface, 510 Heat exchanger, 511 Heat transfer member, 520 Reinforcement member, 520a
Surface, 527a Partition member, 529 Projection member.

Claims (9)

a plurality of heat transfer members arranged in a first direction at intervals, extending in a second direction and allowing a refrigerant to flow therein;
a first header extending in the first direction and connected to one end of each of the plurality of heat transfer members;
a second header extending in the first direction and connected to the other end of each of the plurality of heat transfer members;
A reinforcing member including a frame member extending along the first direction and the second direction and forming an outer peripheral edge, a partition portion partitioning an inner area of the frame member, and an opening,
When a direction perpendicular to the first direction and the second direction is a third direction,
The reinforcing member is
The frame member and the partition portion are combined to form a net shape,
A heat exchanger arranged in at least one of the third direction with respect to the plurality of heat transfer members and fixed to the first header and the second header. The opening is
constituted by at least one of the frame member and the partition,
The partition section is
The heat exchanger according to claim 1 , wherein the heat exchanger extends obliquely to the first direction. The reinforcing member is
joined to the plurality of heat transfer members,
The partition section is
The heat exchanger according to claim 2, wherein the heat exchanger projects in the third direction. The reinforcing member is
a first bent portion formed by being bent at an end in the first direction and extending in the third direction;
The first bent portion is
The heat exchanger according to claim 1, wherein the heat exchanger is fixed to the first header and the second header. The reinforcing member is
a second bent portion formed by being bent at the end in the second direction and extending in the third direction;
The second bent portion is
The heat exchanger according to claim 1, wherein the heat exchanger is fixed to at least one of the first header and the second header. The reinforcing member is
comprising a first part that covers one of the plurality of heat transfer members in the third direction, and a second part that covers the other,
The second bent portion is
The heat exchanger according to claim 5, connecting the first part and the second part. The reinforcing member is
The heat exchanger according to claim 1, wherein the heat exchanger is made of a material that has a higher ionization tendency than the plurality of heat transfer members, the first header, and the second header. The first header and the second header are
a fixing part to which the reinforcing member is fixed;
The fixed part is
The heat exchanger according to any one of claims 1 to 7, which engages the reinforcing member. A refrigeration cycle device comprising the heat exchanger according to any one of claims 1 to 8.

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