Cooling and heating system

Abstract

To provide a cooling and heating system having improved radiation characteristics, high heat exchange efficiency, and a simple structure.SOLUTION: One embodiment of a cooling and heating system of the present invention is a cooling and heating system using a heat exchange member. The heat exchange member comprises a plurality of fins on both surfaces, and when, for the heat exchange member, a width dimension is W [mm], a thickness is Ta [mm], an inclination angle of an i-th fin from a center of a first surface is αi [rad] and a length thereof is L1i [mm], an inclination angle of the j-th fin from a center of a second surface is βj [rad] and a length thereof is L2j [mm], and a thickness dimension of a base part is Tb [mm], at least one of n fins and at least one of m fins satisfy the conditions: Ta=Tb+L1i×sinαi+L2j×sinβj, 0<2L1i×cosαi<W, and 0<2L2j×cosβj<W, 0<αi<π / 2, 0<βj<π / 2.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a heating and cooling system. [Background technology]

[0002] Air conditioners are widely used as heating and cooling devices, but because they use wind to condition the air, they dry out the air and cause agitation of the air. For this reason, some users may not be able to use convection air conditioners as heating and cooling devices, depending on their physical constitution. Conventionally, panel heaters such as those disclosed in Patent Document 1 have been known as heating and cooling devices that can replace convection air conditioners.

[0003] Patent Document 1 discloses a panel heater that generates heat by passing high-temperature hot water through a hot water supply passage. The panel heater in Patent Document 1 is provided with fins that extend horizontally and have outside air inlet holes that are perpendicular to the hot water supply passages that are provided in multiple stages, and the outside air is heated by the air flow through the outside air inlet holes.

[0004] Patent Document 2 discloses a heat sink for use in a panel heater. The heat sink in Patent Document 2 performs heating and cooling by flowing hot or cold water through holes and emitting cold or hot air. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Publication number 01-036015 [Patent Document 2] Design Registration No. 1334772 Summary of the Invention [Problem to be solved by the invention]

[0006] In the panel heater of Patent Document 1, outside air is heated by the air flow through the outside air inlet holes inside the fins, but the heat exchange efficiency is insufficient and there is a problem that the device becomes large due to the hot water supply passages extending horizontally and arranged in multiple stages.

[0007] In the panel heater of Patent Document 2, the heat dissipation fins are all arranged perpendicular to the installation surface, and the heat dissipation surface is open rather than using external air intake holes as in Patent Document 1, but the thermal efficiency is still not sufficient, a large heat sink is required, and energy-saving performance is insufficient.

[0008] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a heating and cooling system that has improved radiation characteristics, high heat exchange efficiency, and a simple structure. [Means for solving the problem]

[0009] The above object of the present invention can be achieved by the following configuration: That is, a heating and cooling system according to a first aspect of the present invention is a heating and cooling system using a heat exchange element in which a heat medium flow pipe and fins are integrally molded, the heat exchange element comprising: a flat plate-shaped base having a pair of heat exchange surfaces, a first surface and a second surface, opposed in a thickness direction along the longitudinal direction, a plurality of the heat medium flow pipes provided along the longitudinal direction inside the base and adjacent to each other in a width direction of the base, and a plurality of the fins provided upright along the longitudinal direction of the pair of heat exchange surfaces, the heat exchange element being a unit whose dimensions are specified in advance to have a width dimension W [mm] and a thickness dimension Ta [mm]. and the i-th (i = 1 to n, n is an integer of 1 or more) fin 30 in one direction from the center to the end in the width direction of the first surface is inclined in that direction with respect to the perpendicular to the first surface 23, and the i-th fin 30 is inclined at an angle αi [rad] with respect to the first surface and has a length L1i [mm], and the j-th (j = 1 to m, m is an integer of 1 or more) fin in one direction from the center to the end in the width direction of the second surface is inclined in that direction with respect to the perpendicular to the second surface, and the j-th fin 30 is inclined at an angle βj [rad] with respect to the second surface and has a length L2j [mm], and when the thickness dimension of the base is Tb [mm], at least one of the n fins and at least one of the m fins Ta=Tb+L1i·sinαi+L2j·sinβj 0<2L1i·cosαi <W 0<2L2j·cosβj <W 0<αi<π / 2 0<βj<π / 2 It is characterized by satisfying the following conditions.

[0010] A second aspect of the heating and cooling system of the present invention is characterized in that, in the heating and cooling system of the first aspect, N (N is an integer greater than or equal to 1) central fins are provided at the center of the width of the first surface, and n fins are arranged from the central fins in the one direction, and M (M is an integer greater than or equal to 1) central fins are provided at the center of the width of the second surface, and m fins are arranged from the central fin in the one direction.

[0011] A third aspect of the present invention is a heating and cooling system, wherein, in the heating and cooling system of the first aspect, s (s is an integer of 2 or more) heat medium flow pipes are provided adjacent to each other on the base, and when the width dimension of the kth heat medium flow pipe from one end of the base is wpk [mm] and the thickness dimension is tpk [mm], It is characterized by meeting the conditions of JPEG2025154843000002.jpg26169.

[0012] A fourth aspect of the heating and cooling system of the present invention is characterized in that, in the heating and cooling system of the first aspect, at least one of the fin, the first surface, the second surface, and both side surfaces of the base is provided with at least one or more concave and convex stripes along the longitudinal direction.

[0013] A fifth aspect of the heating and cooling system of the present invention is characterized in that, in the heating and cooling system of the first aspect, two or more of the heat exchange elements are arranged adjacent to each other along the longitudinal direction, a pair of ends of each of the heat exchange elements is each sealed by an end connection unit, at least one of a heat medium inlet hole and a heat medium outlet hole is provided in at least one of the connection units, the heat medium flowing in from the heat medium inlet hole passes through the heat medium circulation pipe, heat of the heat medium is exchanged with outside air by the heat exchange elements, and the heat medium flows out from the heat medium outlet hole.

[0014] A sixth aspect of the heating and cooling system of the present invention is characterized in that, in the fifth aspect of the heating and cooling system, the end connection unit is provided with a partition member for adjusting the direction of the heat medium flowing to each of the heat exchange elements, and the flow directions of the heat medium differ from each other in at least some of the adjacent heat exchange elements. [Effects of the Invention]

[0015] According to the cooling and heating system of the first aspect of the present invention, radiation characteristics are improved, heat exchange efficiency is high, and the structure of the cooling and heating system can be simplified. In particular, the heat exchange element is a unit whose dimensions are specified in advance to have a width dimension of W [mm] and a thickness dimension of Ta [mm], and the i-th (i = 1 to n, n is an integer of 1 or more) fin 30 in one direction from the center to the end in the width direction of the first surface is inclined in that one direction with respect to a perpendicular to the first surface 23, and the i-th fin 30 is inclined at an angle αi [rad] with respect to the first surface and has a length L1i [mm], and the j-th (j = 1 to m, m is an integer of 1 or more) fin in one direction from the center to the end in the width direction of the second surface is inclined in that one direction with respect to a perpendicular to the second surface, and the j-th fin 30 is inclined at an angle βj [rad] with respect to the second surface and has a length L2j [mm], and when the thickness dimension of the base is Tb [mm], at least one of the n fins and at least one of the m fins are inclined in that one direction with respect to a perpendicular to the first surface 23. Ta=Tb+L1i·sinαi+L2j·sinβj 0<2L1i·cosαi <W 0<2L2j·cosβj <W By satisfying this condition, the surface area of ​​the i-th fin on the first surface can be increased to approximately 2·(1 / sinαi) times that of the conventional Patent Document 2, and the heat dissipation area of ​​the j-th fin on the second surface can be increased to approximately 2·(1 / sinαj) times that of the conventional Patent Document 2.

[0016] Furthermore, in the heating and cooling system of the first aspect of the present invention, the heat exchange element is a unit whose dimensions are specified in advance to have a width dimension W [mm] and a thickness dimension Ta [mm], so the heat exchange element can be shared with other heating and cooling systems. This makes it easier to install and construct the heating and cooling system, facilitates inventory management, and improves the efficiency of product development.

[0017] According to the second aspect of the heating and cooling system of the present invention, N (N is an integer greater than or equal to 1) central fins are provided at the widthwise center of the first surface, and n1 fins are arranged in one direction from the central fin. Furthermore, M (M is an integer greater than or equal to 1) central fins are provided at the widthwise center of the second surface, and m1 fins are arranged in one direction from the central fin. Therefore, the fins can be arranged symmetrically in the widthwise direction on the first surface with respect to the widthwise center of the first surface where the central fins are provided, and the fins can be arranged symmetrically in the widthwise direction on the second surface with respect to the widthwise center of the second surface where the central fins are provided. This allows the fins on the first and second surfaces to be arranged regularly, facilitating manufacturing and reducing the burden of mold design. Furthermore, the regular fin arrangement is advantageous in terms of mechanical strength. For example, by setting the outer side fins in the widthwise direction to a certain thickness, it significantly contributes to improving the mechanical strength of the entire heat exchange element.

[0018] According to the heating and cooling system of the third aspect of the present invention, s (s is an integer of 2 or more) heat medium flow pipes are provided adjacent to each other on the base, and when the width dimension of the k-th heat medium flow pipe from one end of the base is wpk [mm] and the thickness dimension is tpk [mm], By satisfying the condition JPEG2025154843000003.jpg26169, the overall thickness dimension of the heat transfer medium flow pipe can be set smaller than the overall width dimension, thereby ensuring the cross-sectional area for circulating the heat transfer medium in the heat transfer medium flow pipe and making it possible to thin the heat exchange element.

[0019] According to the heating and cooling system of the fourth aspect of the present invention, at least one of one or more recesses and one or more protrusions is provided along the longitudinal direction on at least one of the fins, the first surface, the second surface, and both side surfaces of the base, thereby further increasing the heat dissipation area of ​​the heat exchange element and further improving the heat exchange efficiency.By increasing the heat exchange efficiency of the heat exchange element, it is possible to achieve a reduction in the size of the heating and cooling system and an improvement in energy efficiency.

[0020] According to a fifth aspect of the present invention, there is provided a heating and cooling system in which two or more heat exchange elements are provided adjacent to each other along the longitudinal direction, a pair of ends of each heat exchange element is sealed by an end connection unit, and at least one of a heat medium inlet hole and a heat medium outlet hole is provided in at least one of the connection units, and the heat medium flowing in through the heat medium inlet hole passes through the heat medium flow pipe, heat of the heat medium is exchanged with outside air by the heat exchange element, and the heat medium flows out through the heat medium outlet hole, thereby providing a heating and cooling system in which the heat medium flows through a plurality of heat exchange elements. Furthermore, since the pair of ends of each heat exchange element can be connected in common by the end connection unit, it is easy to process the ends and piping of each heat exchange element and it is possible to prevent heat medium leakage from the heat exchange element and the heat medium from being leaked.

[0021] According to a sixth aspect of the heating and cooling system of the present invention, the end connection unit is provided with a partition member for adjusting the direction of the heat medium flowing through each of the heat exchange elements, and the heat medium flows in different directions in at least some of the adjacent heat exchange elements. This allows the heat medium flow path to be freely designed in a heating and cooling system in which multiple heat exchange elements are arranged, thereby improving the thermal design freedom when installing and constructing the heating and cooling system. Furthermore, in a heating and cooling system in which multiple heat exchange elements are arranged, the layout of the heat exchange elements is not necessarily limited to a plane, but can be, for example, U-shaped, L-shaped, C-shaped, arc-shaped, elliptical, polygonal, etc., improving the layout freedom and also improving the thermal design freedom. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is an external view of a heating and cooling system according to a first embodiment of the present invention. [Figure 2] 1 is a perspective view of a heat exchange member of a cooling and heating system according to a first embodiment of the present invention. [Figure 3] 1 is a front view of a heat exchange member of a cooling and heating system according to a first embodiment of the present invention. [Figure 4] 2 is a cross-sectional view along the line AA of the heat exchange member of the cooling and heating system according to the first embodiment of the present invention. FIG. [Figure 5] 1 is a BB cross-sectional view of a heat exchange member of a cooling and heating system according to a first embodiment of the present invention. [Figure 6] FIG. 3 is a dimensional explanatory diagram of a heat exchange member of the heating and cooling system according to the first embodiment of the present invention. [Figure 7] 1 is an exploded view of a heating and cooling system according to a first embodiment of the present invention. [Figure 8] FIG. 2 is a partial cross-sectional view of a drainage section of the heating and cooling system according to the first embodiment of the present invention. [Figure 9] FIG. 2 is an explanatory diagram of a lower end portion connecting unit of the heating and cooling system according to the first embodiment of the present invention. [Figure 10] FIG. 2 is an explanatory diagram of a flow passage of a combined unit in the cooling and heating system according to the first embodiment of the present invention. [Figure 11] FIG. 6 is an explanatory diagram of a flow passage of a combined unit in a cooling and heating system according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, a heating and cooling system according to an embodiment of the present invention will be described with reference to the drawings. However, the embodiments shown below are merely examples of a heating and cooling system for embodying the technical concept of the present invention, and the present invention is not limited to these, and can be equally applied to other embodiments included in the scope of the claims.

[0024] [Embodiment 1] A heating and cooling system according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 10. FIG. 1 is an external view of the heating and cooling system according to the first embodiment of the present invention. The heating and cooling system 10 includes a plurality of heat exchange elements 20 arranged in parallel and extending in the longitudinal direction. The upper end of each heat exchange element 20 is covered by an upper cover 11, and the lower end of each heat exchange element 20 is covered by a lower cover 12. The heating and cooling system 10 of this embodiment performs heating and cooling by circulating a heat medium through the heat medium flow pipe 22 of the heat exchange element 20, exchanging heat with outside air through heat radiation via the fin members and the heat exchange surface. Water, for example, can be used as the heat medium, eliminating the risk of environmental problems associated with chlorofluorocarbon refrigerants. However, any heat medium can be used as long as it can transfer heat. In this embodiment, various liquid heat mediums that do not pose environmental problems can be used, such as propylene glycol.

[0025] FIG. 2 is a perspective view of a heat exchanger element 20 of a heating and cooling system according to a first embodiment of the present invention. The heat exchanger element 20 includes a flat base 21 having a pair of heat exchange surfaces, a first surface 23 and a second surface 24, which face each other in the thickness direction along the longitudinal direction. A plurality of heat transfer medium flow pipes 22 are arranged along the longitudinal direction within the base 21 and adjacent to each other in the width direction of the base. A plurality of fins 30 are provided upright along the longitudinal direction of each of the pair of heat exchange surfaces 23, 24. Among the fins 30, a central fin 30 is provided in the center of the width direction of the heat exchanger element 20, and side fins 30s are provided on both sides of the width direction of the heat exchanger element 20. Because the heat transfer medium flow pipes 22 and the fins 30 are integrally molded in the heat exchanger element 20, it is desirable to perform corrosion treatment on the inside of the heat transfer medium flow pipes 22 to prevent corrosion of the heat transfer medium. The material of the heat exchanger element 20 is not particularly limited, but examples include metals such as aluminum, stainless steel, and iron, resins, and combinations of metals and resins. As an example of using metal and resin together, metal can be used for the parts that perform radiation, such as the first surface 23, the second surface 24, the base 21, and the fins 30, and resin can be used for the joints with the lower end joining unit 40 and the upper end joining unit 50, which will be described later. Whether the heat exchange member 20 is made of metal or resin, it is preferable to perform corrosion treatment against the heat medium on the inside of the heat medium flow pipe 22, regardless of the material.

[0026] The side fins 30s are fins 30 located at the four corners of the cross section of the heat exchanger element 20, and are therefore configured to be thicker than the other fins in consideration of mechanical strength. The dimensions of the fins are determined according to specifications, and the thickness of the fins is arbitrary and not particularly limited as long as there is space between each fin. For example, the thickness of the side fins 30s can be set to about 120% to 400% of the thickness of the other fins 30, and more preferably about 150% to 300%.

[0027] As described below, the fins 30 are inclined at an angle α (0°<α<90°) relative to the base 21, allowing for a larger heat dissipation area than conventional technology and improving heat exchange efficiency. The longitudinal length of the heat exchange device can be adjusted to suit the installation space. Furthermore, by arranging multiple heat exchange devices in parallel, the heat dissipation surface can be expanded in the width direction. Because this product is panel-shaped (flat plate-shaped), it offers greater layout flexibility, a smaller thickness dimension allows for a space-saving layout, and heat exchange is possible on both the front and back sides. Furthermore, the inclination of the fins at angle α allows for the use of longitudinal air flow in contact with the fins and heat exchange surface, thereby further improving heat exchange efficiency.

[0028] Fig. 3 is a front view of the heat exchange element 20 of the heating and cooling system according to the first embodiment of the present invention. The front view of Fig. 3 depicts a plurality of parallel straight lines extending in the longitudinal direction (height direction), which represent a plurality of fins 30 and at least one of recesses and protrusions along the longitudinal direction provided on each fin 30 and the heat exchange surfaces 23, 24 (hereinafter referred to as "recesses" 25, but not only recesses but also at least one of recesses and protrusions can be applied).

[0029] 4 is a cross-sectional view taken along the line AA of the heat exchange element 20 of the heating and cooling system according to the first embodiment of the present invention. Fins 30 are provided at an angle α (0°<α<90°) relative to the base 21, and the fins 30, first surface 23, and second surface 24 are provided with longitudinally extending grooves 25, thereby enabling a large heat dissipation area and improved heat exchange efficiency. In addition, the side surface of the base 21 is also provided with longitudinally extending grooves 25, allowing the side surface of the base 21 to also function as a heat exchange surface. In this way, a large heat dissipation area can be provided, enabling improved heat exchange efficiency.

[0030] FIG. 5 is a cross-sectional view taken along line B-B of the heat exchange member 20 of the air conditioning system according to Embodiment 1 of the present invention. In FIG. 5, a plurality of parallel straight lines extending in the longitudinal direction (height direction) are drawn, which indicate the fins 30 on the first surface 23, the fins 30 on the second surface 24, and the longitudinal concave stripes 25 provided on the side surfaces of each fin 30 and the base 21. Thus, the heat radiation area can be widened and the heat exchange efficiency can be improved.

[0031] FIG. 6 is a dimensional explanatory view of the heat exchange member 20 of the air conditioning system 10 according to Embodiment 1 of the present invention. The heat exchange member 20 is a unit whose dimensions are specified in advance such that the width dimension is W [mm] and the thickness direction is Ta [mm]. For the i-th fin 30 (i = 1 to n, n is an integer of 1 or more) in one direction from the center to the end in the width direction of the first surface 23, it is inclined in the one direction with respect to the perpendicular line of the first surface 23, and the i-th fin 30 has an inclination angle αi [rad] with respect to the first surface and a length L1i [mm]. For the j-th fin 30 (j = 1 to m, m is an integer of 1 or more) in one direction from the center to the end in the width direction of the second surface 24, it is inclined in the one direction with respect to the perpendicular line of the second surface 24, and the j-th fin 30 has an inclination angle βj [rad] with respect to the second surface and a length L2j [mm].

[0032] When the thickness dimension of the base 21 is Tb [mm], at least one or more of the n fins and at least one or more of the m fins satisfy Ta = Tb + L1i·sinαi + L2j·sinβj (Equation (1)) 0 < 2L1i·cosαi < W (Equation (2)) 0 < 2L2j·cosβj < W (Equation (3)) 0 < αi < π / 2 (Equation (4)) 0 < βj < π / 2 (Equation (5)) the following conditions.

[0033] By satisfying the conditions of the above equations (1) to (5), the surface area of ​​the i-th fin on the first surface can be increased to approximately 2·(1 / sinαi) times that of the conventional Patent Document 2, and the heat dissipation area of ​​the j-th fin on the second surface can be increased to approximately 2·(1 / sinαj) times that of the conventional Patent Document 2.

[0034] Furthermore, since the ith fin 30 on the first surface has an inclination αi and the jth fin on the second surface has an inclination βj, a semi-enclosed heat dissipation space can be formed between adjacent fins on the first surface, for example, the ith and (i+1)th fins, and the first surface. Because the semi-enclosed heat dissipation space is formed along the longitudinal direction of the heat exchange element 20, which is the extension direction of the fins 30, when the heat exchange element 20 exchanges heat with air, an appropriate air flow along the extension direction of the fins 30 can be utilized, thereby further improving heat exchange efficiency.

[0035] In the half-closed space, for example, when the i-th and (i+1)-th fins on the first surface both have an angle of αi and the pitch is P1, the following is true for the conventional Patent Document 2: (P1+2L) / (P1+2Li·sinαi) Since the closed space ratio increases by about 1 / 2, it becomes easier to create an air flow between the fins 30, and this can further improve the heat exchange efficiency.

[0036] The same applies to the second surface. For example, if the j-th and j+1-th fins on the second surface both have an angle of βj and the pitch is P2, then, compared to the conventional Patent Document 2, (P2+2L) / (P2+2Li·sinαi) Since the closed space ratio increases by about 1 / 2, it becomes easier to create an air flow between the fins 30, and this can further improve the heat exchange efficiency.

[0037] N (N is an integer of 1 or more) central fins 30c are provided in the center of the width direction of the first surface 23, and n fins are arranged in one direction from the central fin 30c. In this embodiment, N and n are not particularly limited, but the example in FIG. 4 shows an example where N=1 and n=6.

[0038] M (MN is an integer of 1 or more) central fins 30c are provided in the widthwise center of the second surface 24, and m fins are arranged in one direction from the central fin 30c. In this embodiment, M and m are not particularly limited, but the example in FIG. 4 shows an example where M=1 and m=6.

[0039] In this heating and cooling system, the fins 30 can be arranged symmetrically in the width direction on the first surface 23 with respect to the center of the width direction of the first surface 23 where the central fin 30c is provided, and the fins 30 can be arranged symmetrically in the width direction on the second surface 24 with respect to the center of the width direction of the second surface 24 where the central fin 30c is provided. This allows the fins 30 on the first surface 23 and the second surface 24 to be arranged regularly, facilitating manufacturing and particularly reducing the burden associated with mold design. Furthermore, the regular arrangement of the fins 30 is advantageous in terms of mechanical strength; for example, setting the thickness of the side fins 30s on the outer sides in the width direction significantly contributes to improving the mechanical strength of the entire heat exchange element.

[0040] Furthermore, according to the heating and cooling system of this embodiment, s (s is an integer of 2 or more) heat medium flow pipes 22 are provided adjacent to the base 21, and when the width dimension of the k-th heat medium flow pipe 22 from one end of the base 21 is wpk [mm] and the thickness dimension is tpk [mm], the following equation (6) is satisfied: By satisfying the condition JPEG2025154843000004.jpg26169, the overall thickness dimension of the heat transfer medium flow pipe can be set smaller than the overall width dimension, thereby ensuring the cross-sectional area for circulating the heat transfer medium in the heat transfer medium flow pipe and making it possible to thin the heat exchange element.

[0041] 7 is an exploded view of the heating and cooling system of the first embodiment of the present invention. In the heating and cooling system 10 of this embodiment, a plurality of heat exchange elements 20 extending in the longitudinal direction are arranged in parallel. The upper ends of the heat exchange elements 20 are covered by an upper cover 11, and the lower ends of the heat exchange elements 20 are covered by a lower cover 12. In the upper cover 11, an upper end coupling unit 50 is provided above the heat exchange elements 20, and the rear side is fixed by a rear fixing portion 14 and both side surfaces are supported by upper fixing portions 13. The upper end coupling unit 50 is provided with an upper heat medium flow port 51, so that the heat medium can also flow in and out from the upper end coupling unit 50, thereby improving the degree of freedom in arranging the heat medium flow path.

[0042] The lower part of the rear side of the upper cover 11 is fixed by a rear fixing part, just like the upper part, and a lower end connecting unit 40 is provided at the lower part of the heat exchange member 20 and fixed by a lower fixing part 15. A drainage part 16 is provided at the bottom of the lower end connecting unit 40. A heat medium inlet 41 and a heat medium outlet 42 are provided in the lower end connecting unit 40. A heat medium inlet pipe 16i and a heat medium outlet pipe 16o are provided in the drainage part 16 in an upwardly discharging direction. The heat medium inlet pipe 16i is arranged to allow the heat medium to flow into the heat medium inlet 41, and the heat medium outlet pipe 16o is arranged to allow the heat medium to flow out from the heat medium outlet 42.

[0043] FIG. 8 is a partial cross-sectional view of the drain section 16 of the heating and cooling system 10 according to the first embodiment of the present invention. The heat medium is sealed inside the heat exchanger pipe 22 of the heat exchanger element 20 and the upper end connecting unit 50 and the lower end connecting unit 40, so leakage is normally extremely rare. However, the drain section 16 is provided in case of leakage of the heat medium, for example, during installation, removal, layout change, maintenance, etc. The drain section 16 is provided with an inclined flow path that is lower in the center in case of leakage of the heat medium. The heat medium is collected in the center of the inclined flow path, and even if the heat medium leaks, the heat medium is discharged to the outside via a drain flow path 16d located in the center of the inclined flow path.

[0044] Fig. 9 is an explanatory diagram of the lower end joining unit 40 of the heating and cooling system 10 according to the first embodiment of the present invention. Fig. 9A is an explanatory diagram of the joining portion 26 at the longitudinal end of the heat exchange element 20, and Fig. 9B is an explanatory diagram of the attachment state of the heat exchange element 20 to the lower end joining unit 40.

[0045] The heat exchange element 20 has a longitudinal end provided with a connecting portion 26 for connecting to the lower end connecting unit 40 or the upper end connecting unit 50. The heat exchange element 20 is an elongated member extending in the longitudinal direction, and its end is attached to the lower end connecting unit 40 or the upper end connecting unit 50 by the connecting portion 26, thereby allowing the heat medium to circulate through the heat medium flow pipe 22. To this end, the lower end connecting unit 40 is provided with a heat medium inlet 41 and a heat medium outlet 42, and the upper end connecting unit 50 is provided with an upper heat medium flow port 51. A heat medium flow path is formed by the heat exchange element 20, the lower end connecting unit 40, and the upper end connecting unit 50. As will be described later, the heat medium flow path can be set by setting the end connecting unit 40 and the upper end connecting unit 50.

[0046] A plurality of fins 30 are provided along the longitudinal direction on the first surface 23 and the second surface 24 of the heat exchange element 20, but no fins 30 are provided at the joining portion 26 at the longitudinal end of the heat exchange element 20. The fins 30 have tapered portions 30t. This prevents the fins 30 provided on the first surface 23 and the second surface 24 from getting in the way when the joining portion 26 of the heat exchange element 20 is attached to the lower end joining unit 40 or the upper end joining unit 50. For example, as shown in FIG. 9B , the joining portion 26 of the heat exchange element 20 is attached to the lower end joining unit 40.

[0047] 10 is an explanatory diagram of a connection unit flow passage 43 of the heating and cooling system 10 of the first embodiment of the present invention. The connection unit flow passage 43, which allows a heat medium to circulate in the longitudinal direction of the lower end connection unit 40, is provided inside the lower end connection unit 40. The heat medium flows into the connection unit flow passage 43 from a heat medium inlet 41 and flows out from a heat medium outlet 42. The connection unit flow passage 43 is provided with a plurality of heat exchange member attachment portions 45 for attaching the connection portions 26 of the heat exchange element 20. By attaching the connection portions 26 of the heat exchange element 20 to the heat exchange element attachment portions 45, the heat medium can circulate between the connection unit flow passage 43 and the heat medium flow pipe 22 of the heat exchange element 20.

[0048] The structure in which the joining portion 26 of the heat exchange element 20 is attached to the heat exchange element attachment portion 45 can be any structure as long as the heat medium is sealed inside. In FIG. 10 , a structure in which the joining portion 26 is simply fitted to the heat exchange element 20 for easy installation is used. This structure is a type of press-fitting, and known press-fitting techniques can be used. Alternatively, crimping can be used in combination to ensure a tighter seal. However, as described above, the structure in which the joining portion 26 of the heat exchange element 20 is attached to the heat exchange element attachment portion 45 can be any structure as long as the heat medium is sealed inside. Therefore, an attachment structure using other jigs or attachment members can also be used. For example, mechanical, thermal, ultrasonic, electrical, magnetic, or other attachment devices may be used.

[0049] 10, the connecting unit flow passage 43 is configured to allow the heat medium to flow inside along the longitudinal direction of the connecting unit flow passage 43, but in order to set up a heat medium flow passage using the lower end connecting unit 40, the upper end connecting unit 50, and the heat exchange member 20, it is necessary to divide the connecting unit flow passage 43 and create a flow path through which the heat medium flows or to block and restrict the flow of the heat medium. Therefore, a flow path closing member 44 can be detachably installed to block and divide the flow of the heat medium in the connecting unit flow passage 43. The flow path closing member 44 can be installed at any location within the connecting unit flow passage 43, allowing the heat medium flow path to be set freely.

[0050] The lower end joining unit 40 and the upper end joining unit 50, which are respectively disposed at both ends in the longitudinal direction of the heat exchange member 20, can each be provided with a plurality of flow passage closing members 44. For example, (a) The heat medium flows in the same direction through all the heat exchange elements 20; (b) Alternating the flow of the heat medium between adjacent heat exchange elements 20; (c) The heat medium flows in the same direction in units of two adjacent heat exchange elements 20, and the heat medium flows alternately in units of two elements; (d) causing the heat medium to flow in the same direction through three or more adjacent heat exchange elements 20; (e) the heat medium flows in from one of the lower end joining unit 40 and the upper end joining unit 50, and flows out from the other; and (e) The heat medium flows in from the lower end connecting unit 40, and the heat medium flows out from the lower end connecting unit 40. Any of the above heat transfer media can be set arbitrarily.

[0051] [Embodiment 2] A heating and cooling system according to a second embodiment of the present invention will be described with reference to Fig. 11. The same components as those in Figs. 1 to 10 are designated by the same reference numerals, and description thereof will be omitted. Fig. 11 is an explanatory diagram of a connection unit flow passage in a heating and cooling system according to a second embodiment of the present invention. In this embodiment, an example will be described in which the connection portion 26 of the heat exchange element 2 is attached to the heat exchange element attachment portion 45 of the lower end connection unit 40 or the upper end connection unit 50 via a separate adapter 60.

[0052] One end of the adapter 60 is connected to the connecting portion 26 of the heat exchange element 20, and the other end of the adapter 60 is connected to the heat exchange element mounting portion 45. The connection between the adapter 60 and the connecting portion 26 or the heat exchange element mounting portion 45 can be any connection structure as long as it can seal the heat medium inside. The example in FIG. 11 shows an example in which the adapter 60 is attached by form-fitting without using a special jig, with the heat medium sealed inside. However, as mentioned above, any mounting structure can be used for the connection between the adapter 60 and the connecting portion 26 or the heat exchange element mounting portion 45 as long as it can seal the heat medium inside. Therefore, mounting structures using other jigs or mounting members can also be used. For example, mechanical, thermal, ultrasonic, electrical, magnetic, or other mounting devices may be used.

[0053] 11, the heat medium flowing between one end of the adapter and the plurality of heat medium flow pipes 22 of the heat exchange element 20 is combined into one flow path within the adapter, and the heat medium flows through one flow path between the other end and the heat exchange element mounting portion 45 of the lower end coupling unit 40. Because the heat medium flows through one flow path between the other end and the heat exchange element mounting portion 45 of the lower end coupling unit 40, it is possible to reduce the number of sealing points for the heat medium flow path, making it easier to design an installation structure in a sealed state, and a connection structure with excellent sealing performance can be adopted.

[0054] By using the adapter 60, even if the connecting portion 26 of the heat exchange element 20 and the heat exchange element mounting portion of the lower end connecting unit 40 are not of a perfectly compatible structure, it is possible to create snow sculptures via the adapter 60. This greatly improves the degree of freedom in combining the heat exchange element 20 with the lower end connecting unit 40 and the upper end connecting unit 50, which can also be useful for product development, inventory management, construction management, maintenance, etc.

[0055] FIG. 11 illustrates an adapter 60 in which one end of the adapter 60 circulates the heat medium with a plurality of heat medium flow pipes 22 and the other end of the adapter 60 circulates the heat medium with a single flow path with the lower end coupling unit 40. However, the present embodiment is not limited to an adapter having such a structure, and for example, the other end of the adapter 60 may be configured with the same number of flow paths as the number of flow paths at the one end.

[0056] Furthermore, this embodiment can also be configured without using the adapter 60, and a similar connection structure can be realized by providing the connection structure and function of the adapter 60 to the lower end coupling unit 40, the upper end coupling unit 50, or the heat exchange element 20. For example, if a flow path collecting section that collects multiple heat medium flow pipes 22 into one flow path is provided at the longitudinal end of the heat exchange element 20, the coupling section 26 side of the heat exchange element 20 can be connected to the heat exchange element mounting section 45 of the lower end coupling unit 40 or the upper end coupling unit 50 via one flow path.

[0057] The above-described embodiments do not limit the present invention, and the present invention can be equally applied to other embodiments included in the scope of the claims. Furthermore, the embodiments can be appropriately modified or combined.

[0058] In each embodiment, the connection between the heat exchange member 20 and the lower end joining unit 40 has been described, but a similar connection structure can also be applied to the connection between the heat exchange member 20 and the upper end joining unit 50.

[0059] In this embodiment, it has been described that water (including hot water and steam) can be used as the heat medium, but this is merely an example, and any heat medium can be used in this embodiment as long as it can transfer heat. Note that in this embodiment, the heat medium can be sealed inside the heat exchange member 20, the lower end coupling unit 40, and the upper end coupling unit 50, so that any heat medium can be used from the viewpoint of safety. [Explanation of symbols]

[0060] 10. Heating and Cooling Systems 11 Top cover 12 Lower cover 13 Upper fixing part 14 Rear fixing part 15 Lower fixing part 16 Drainage section 16d Drain channel 16i Heat medium inflow pipe 16o Heat medium outflow pipe 20 Heat exchanger 21 Base 22 Heat medium flow pipe 23, 24 Heat exchange surface 25 Concave line 26 Joint 30 Finn 30c center fin 30s side fins 30t tapered section 40 Lower end joint unit 41 Heat medium inlet 42 Heat medium outlet 43 Connecting unit flow passage 44 Flow passage closing member 45 Heat exchanger mounting part 50 Upper end joint unit 51 Heat medium upper flow port 60 adapter

Claims

1. A heating and cooling system using a heat exchange member in which a heat medium flow pipe and a fin are integrally molded, The heat exchange member is a flat plate-shaped base portion having a pair of heat exchange surfaces, a first surface and a second surface, opposed to each other in a thickness direction along a longitudinal direction; a plurality of the heat medium flow pipes provided along the longitudinal direction inside the base and adjacent to each other in the width direction of the base; A plurality of the fins are provided upright along the longitudinal direction of the pair of heat exchange surfaces; Equipped with The heat exchange element is a unit whose dimensions are specified in advance so that the width dimension is W [mm] and the thickness dimension is Ta [mm], an i-th fin 30 (i = 1 to n, n is an integer of 1 or more) inclined in one direction from the center to the end in the width direction of the first surface 23 with respect to a perpendicular to the first surface 23, and the i-th fin 30 has an inclination angle αi [rad] with respect to the first surface and a length L1i [mm]; a jth fin (j=1 to m, m is an integer of 1 or more) in one direction from the center to the end in the width direction of the second surface is inclined in the one direction with respect to a perpendicular to the second surface, and the jth fin 30 has an inclination angle βj [rad] with respect to the second surface and a length L2j [mm]; When the thickness dimension of the base is Tb [mm], at least one of the n fins and at least one of the m fins are Ta=Tb+L1i・sinαi+L2j・sinβj 0<2L1i・cosαi<W 0<2L2j・cosβj<W 0<αi<π / 2 0<βj<π / 2 A heating and cooling system characterized by satisfying the above conditions.

2. N central fins (N is an integer of 1 or more) are provided at the center of the width direction of the first surface, and n fins are arranged in the one direction from the central fins, The heating and cooling system of claim 1, characterized in that M (M is an integer greater than or equal to 1) central fins are provided at the center of the width of the second surface, and m fins are arranged in the one direction from the central fins.

3. s (s is an integer of 2 or more) heat medium flow pipes are provided adjacent to the base portion, When the width dimension of the k-th heat medium flow pipe from one end of the base portion is wpk [mm] and the thickness dimension is tpk [mm], 2. The heating and cooling system according to claim 1, wherein the following conditions are satisfied:

4. The heating and cooling system of claim 1, characterized in that at least one of the fins, the first surface, the second surface, and both sides of the base has one or more recesses and one or more protrusions along the longitudinal direction.

5. Two or more of the heat exchange elements are provided adjacent to each other along the longitudinal direction, and a pair of ends of each of the heat exchange elements are sealed by an end coupling unit, At least one of the connecting units is provided with at least one of a heat medium inlet hole and a heat medium outlet hole, 2. The heating and cooling system according to claim 1, wherein the heat medium flowing in through the heat medium inlet hole passes through the heat medium flow pipe, heat of the heat medium is exchanged with outside air by the heat exchange member, and the heat medium flows out through the heat medium outlet hole.

6. a partition member for adjusting the direction of the heat medium flowing through each of the heat exchange members is provided in the end connection unit; The heating and cooling system according to claim 5, wherein the heat medium flows in different directions in at least some of the heat exchange elements adjacent to each other.

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