WO2019203083A1 - Heat sink, method for using heat sink, and air conditioning device - Google Patents

Heat sink, method for using heat sink, and air conditioning device Download PDF

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Publication number
WO2019203083A1
WO2019203083A1 PCT/JP2019/015570 JP2019015570W WO2019203083A1 WO 2019203083 A1 WO2019203083 A1 WO 2019203083A1 JP 2019015570 W JP2019015570 W JP 2019015570W WO 2019203083 A1 WO2019203083 A1 WO 2019203083A1
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WO
WIPO (PCT)
Prior art keywords
heat sink
groove
main body
fin
heat
Prior art date
Application number
PCT/JP2019/015570
Other languages
French (fr)
Japanese (ja)
Inventor
正城 村松
圭司 原田
高田　雅樹
Original Assignee
三菱電機株式会社
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Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Publication of WO2019203083A1 publication Critical patent/WO2019203083A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

Definitions

  • the present invention relates to a heat sink, a method of using the heat sink, and an air conditioner.
  • Some outdoor units of an air conditioner include an inverter that drives a compressor composed of semiconductor components. Since semiconductor components generate heat when they operate, they may become hot and fail. Therefore, in order to prevent failure of the semiconductor component, a method of radiating or cooling the semiconductor component is sometimes adopted for the outdoor unit. For example, a method in which a semiconductor component is air-cooled by mounting a heat sink as a heat radiating / cooling unit on the semiconductor component and applying a wind generated by a fan to the heat sink may be employed. Moreover, a method of cooling a semiconductor component may be employed by circulating a part of the refrigerant used for heat exchange of the air conditioner through a pipe in the heat sink (for example, Patent Document 1).
  • the cooling method by air cooling has a problem that a conventional outdoor unit fan has insufficient cooling capacity, and as a result, a dedicated fan is additionally provided.
  • the cooling method using the refrigerant shares the refrigerant of the air conditioner with the heat sink, and thus has a problem that the cooling capacity of the air conditioner is affected.
  • it has been proposed to cool semiconductor components with a heat sink combining air cooling and refrigerant cooling for example, Patent Document 2).
  • Patent Document 2 By using such a heat sink, the cooling capacity of the heat sink is improved. That is, the heat sink which has a small influence on the cooling capacity of the air conditioner and can share the fan of the conventional outdoor unit can be obtained. Also, the size of the heat sink itself can be reduced.
  • the heat sink described in Patent Document 1 has two metal plates overlapped and connected. And the surface which mounts the to-be-cooled components of one metal plate and the surface which joins two metal plates mutually are parallel. For this reason, when a fin is provided on the other metal plate of the heat sink described in Patent Document 1, a joint surface between one metal plate and the other metal plate between the component to be cooled and the tip of the fin. Will exist. Due to the contact thermal resistance of the joint surface, the thermal resistance from the part to be cooled to the tip of the fin is increased. As a result, heat conduction in the heat sink is hindered, resulting in a problem that the cooling capacity of the heat sink is reduced.
  • the object of the present invention is to solve the above problems, to obtain a heat sink that prevents a decrease in cooling capacity and is less likely to cause uneven cooling.
  • a heat sink includes a first main body having a first surface provided with a first groove, a first fin provided on one side of the first main body, and a first fin.
  • a second main body having a second surface adjacent to the first surface, and a second fin provided on the surface of the second main body on the one surface side.
  • the second main body is provided with a second groove on the second surface that extends in the direction in which the first groove extends and faces the first groove.
  • the heat sink is provided with the refrigerant
  • the first main body has a first surface
  • the second main body has a second surface adjacent to the first surface.
  • the first main body and the second main body impede heat conduction from the side of one surface where the first fin and the second fin are provided toward the other side opposite thereto.
  • the contact thermal resistance is not increased by the joint surface. Accordingly, when the component to be cooled is arranged on the other surface side, the thermal resistance from the other surface side to the one surface side where the first fin and the second fin are provided is small. Thereby, the heat conduction from the component to be cooled to the first fin and the second fin is hardly hindered. As a result, the heat sink has a high cooling capacity.
  • the first groove is provided on the first surface
  • the second groove extends in the direction in which the first groove extends
  • the second groove facing the first groove is provided on the second surface.
  • a refrigerant pipe is provided between the first groove and the second groove.
  • FIG. 1 is a perspective view of a heat sink according to Embodiment 1.
  • FIG. Sectional drawing of the two partial products with which the heat sink concerning Embodiment 1 is provided Sectional drawing of the heat sink concerning Embodiment 1
  • Sectional drawing of the three partial products of the modification of the heat sink concerning Embodiment 1 Sectional drawing of the modification of the heat sink which concerns on Embodiment 1.
  • FIG. Sectional drawing of the heat sink concerning Embodiment 2 Sectional drawing of the heat sink concerning Embodiment 3
  • the perspective view of the outdoor unit of the air conditioning apparatus which concerns on Embodiment 4.
  • FIG. The perspective view of the electrical component box with which the outdoor unit of the air conditioning apparatus which concerns on Embodiment 4 is provided.
  • Sectional drawing of the electrical component box with which the outdoor unit of the air conditioning apparatus which concerns on Embodiment 4 Sectional drawing of another modification of the heat sink which concerns on Embodiment 1.
  • FIG. 1 is a perspective view of a heat sink 1 according to the first embodiment.
  • FIG. 2 is a cross-sectional view of two partial products 2a and 2b provided in the heat sink 1 according to the first embodiment.
  • FIG. 3 is a cross-sectional view of the heat sink 1 according to the first embodiment.
  • FIG. 3 shows a cross section taken along the line III-III shown in FIG.
  • the heat sink 1 includes partial parts 2 a and 2 b.
  • the partial products 2a and 2b are manufactured by extrusion molding in which the vertical direction in FIG. For this reason, the partial products 2a and 2b have a fixed shape in a cross section perpendicular to the extrusion direction.
  • FIGS. 2 and 3 illustrating the cross sections of the partial products 2a and 2b perpendicular to the extrusion direction. 4 to 7 described later also show the same cross section as FIG. 2 and FIG.
  • the partial product 2a includes a main body 3a having a rectangular shape in cross section and a plurality of flat fins 4a.
  • the main body 3a is formed in a rectangular shape in sectional view.
  • a plurality of fins 4a are provided on one surface side of the main body 3a, that is, on the upper surface side of the main body 3a.
  • a groove 5a is formed on the right side surface 9a of the main body 3a in order to arrange the cylindrical refrigerant pipe 8.
  • On the right side surface 9a a connecting concave portion 6a and a connecting convex portion 7a are formed.
  • the main body 3a is also referred to as a first main body
  • the right side surface 9a is also referred to as a first surface.
  • the groove 5a is also referred to as a first groove
  • the connecting recess 6a and the connecting protrusion 7a are also simply referred to as a recess and a protrusion.
  • the groove 5a is formed in a semicircular shape in sectional view. And the groove
  • the connecting recess 6a is recessed from the right side surface 9a to the inside of the main body 3a.
  • the cross-sectional shape is a bowl-like shape that is curved toward the front end with the front end facing the back side.
  • the connecting recess 6a extends in the same direction as the groove 5a while maintaining its cross-sectional shape.
  • the connection recessed part 6a is arrange
  • a connecting convex portion 7a is disposed below the groove 5a.
  • the connecting convex portion 7a protrudes from the right side surface 9a to the outside of the main body 3a.
  • the cross-sectional shape is a rectangular shape whose longitudinal direction is directed to the outside of the main body 3a.
  • the connecting convex portion 7a extends in the same direction as the groove 5a while maintaining its cross-sectional shape.
  • the connecting convex portion 7a has flexibility and is elastically deformable.
  • the fin 4a is formed in the shape of a rectangular plate. And the short direction is turned up. Further, the longitudinal direction is directed from the front of FIG. 2 to the back, that is, in the same direction as the groove 5a.
  • the fins 4a are arranged at a constant pitch in the left-right direction.
  • the fin 4a at the rightmost end is provided at a position separated from the right side surface 9a by a half pitch.
  • the fin 4a is integrally formed with the main body 3a by extrusion molding.
  • the fin 4a is also referred to as a first fin.
  • the partial product 2a includes the main body 3a and the plurality of fins 4a.
  • the partial product 2b also includes a main body 3b having a rectangular shape in sectional view and a plurality of flat fins 4b.
  • the main body 3b is formed in a rectangular shape in sectional view, like the main body 3a. Its size is the same as that of the main body 3a. Moreover, the several fin 4b is provided in the upper surface side of the main body 3b similarly to the main body 3a.
  • a groove 5b for arranging the refrigerant pipe 8 is formed on the left side surface 9b.
  • the connection recessed part 7b and the connection convex part 6b are formed in the left side surface 9b.
  • the main body 3b is also referred to as a second main body, and the left side surface 9b is also referred to as a second surface.
  • the groove 5b is also referred to as a second groove
  • the connecting recess 7b and the connecting protrusion 6b are also simply referred to as a recess and a protrusion.
  • the groove 5b has the same configuration except that it is symmetrical to the groove 5a formed in the main body 3a.
  • the left side surface 9b of the main body 3b is formed in the same shape as the right side surface 9a in order to be able to contact the right side surface 9a of the main body 3a.
  • the groove 5b faces the groove 5a when the left side surface 9b of the main body 3b is aligned with the right side surface 9a of the main body 3a.
  • the groove 5b is connected to the inner wall of the groove 5a to form a refrigerant pipe cavity 80 having a circular shape in cross section.
  • connection recess 7b and the connection protrusion 6b are symmetrical to the connection recess 6a and the connection protrusion 7a formed in the main body 3a, but the connection recess 7b and the connection protrusion The position of the portion 6b with respect to the groove 5b is different from the connecting concave portion 6a and the connecting convex portion 7a of the body 3a.
  • the connecting recess 7b is disposed below the groove 5b. And the connection recessed part 7b is provided in the same position in the up-down direction as the connection convex part 7a of the main body 3a.
  • the connecting convex portion 6b is disposed on the upper side of the groove 5b. The connecting convex portion 6b is provided at the same position in the vertical direction as the connecting concave portion 6a of the main body 3a.
  • the fin 4b has the same configuration as the fin 4a except that the leftmost fin 4b is disposed at a half pitch distance from the left side surface 9b of the main body 3b.
  • the fin 4b is integrally formed with the main body 3b by manufacturing the part 2b by extrusion molding.
  • the fin 4b is also referred to as a second fin.
  • the heat sink 1 is formed by connecting the partial products 2a and 2b in the left-right direction as shown in FIG. Specifically, the right side surface 9a of the main body 3a is in contact with the left side surface 9b of the main body 3b. Further, the connecting convex portion 7a of the main body 3a is press-fitted into the connecting concave portion 7b of the main body 3b. Further, the connecting convex portion 6b of the main body 3b is press-fitted into the connecting concave portion 6a of the main body 3a.
  • the connecting convex portion 7a is elastically deformed into a bowl-like shape having a curved tip in a sectional view by press-fitting. Thereby, the connecting convex portion 7a is fitted in the connecting concave portion 7b. Further, the tip is locked to the curved inner wall of the connecting recess 7b. As a result, the main body 3a is connected to the main body 3b by the connecting convex portion 7a. Further, the connecting convex portion 7a maintains the connection between the main bodies 3a and 3b even when a force for separating the main bodies 3a and 3b from each other acts.
  • the connecting projection 6b is elastically deformed into a bowl-like shape having a curved tip in a sectional view by press-fitting, and as a result, is fitted into the connecting recess 6a. ing. Further, the tip is locked to the curved inner wall of the connecting recess 6a.
  • the convex part 6b for connection has connected the main body 3b to the main body 3a.
  • the connection convex part 6b maintains the connection of the main bodies 3a and 3b in the same manner as the connection convex part 7a.
  • the fins 4a and 4b the fin 4a at the rightmost end of the part 2a is arranged at a half pitch position from the right side 9a, and the fin 4b at the leftmost end of the part 2b is half pitch from the left side 9b. Since they are arranged at positions, they are arranged in the left-right direction at a constant pitch as a whole. As a result, the fins 4a and 4b are uniformly distributed on the upper surface side of the main bodies 3a and 3b, and radiate the heat of the main bodies 3a and 3b evenly.
  • the inner walls of the grooves 5a and 5b are connected to each other by connecting the partial products 2a and 2b in the left-right direction.
  • the grooves 5a and 5b form a refrigerant piping cavity 80 having a circular shape in cross section.
  • a refrigerant pipe 8 having a cylindrical shape that fits into the refrigerant pipe cavity 80 is passed through the refrigerant pipe cavity 80.
  • the refrigerant pipe 8 is fitted in the refrigerant pipe cavity 80.
  • the heat sink 1 a component to be cooled, which is not shown, is attached to the lower surface on the side opposite to the upper surface side of the main bodies 3a and 3b having the fins 4a and 4b.
  • the lower surface is referred to as a cooling surface 30.
  • the component to be cooled has a flat portion that can contact the cooling surface 30, and the flat portion contacts the cooling surface 30.
  • the heat of the component to be cooled is transmitted from the cooling surface 30 to the inside of the main bodies 3a and 3b.
  • the main bodies 3a and 3b are integrally formed by extrusion molding.
  • the main bodies 3a and 3b do not have a joint surface formed by joining two members inside.
  • the main bodies 3a and 3b are integrally formed with the fins 4a and 4b by extrusion molding.
  • the heat transmitted to the inside of the main bodies 3a and 3b is transmitted to the fins 4a and 4b without being affected by the joining location where the parts are joined. In other words, heat is transferred to the fins 4a and 4b without being affected by the contact thermal resistance.
  • the main bodies 3a and 3b and the fins 4a and 4b conduct heat with high heat conduction efficiency.
  • the heat transmitted to the fins 4a and 4b is blown to the fins 4a and 4b, the heat is radiated to the air hitting the fins 4a and 4b.
  • the fins 4a and 4b are uniformly arranged on the entire upper surface side of the main bodies 3a and 3b.
  • the location where the fins 4a and 4b are unevenly distributed does not exist in the upper surface side of the main bodies 3a and 3b. For this reason, the air volume which passes between the fins 4a and 4b is uniform as a whole. As a result, heat is dissipated uniformly from the entire fins 4a and 4b.
  • the heat transferred from the cooling surface 30 to the inside of the main bodies 3a and 3b is also transferred from the cooling surface 30 to the inner walls of the grooves 5a and 5b.
  • the refrigerant pipe 8 is fitted to the inner walls of the grooves 5a and 5b.
  • coolant piping 8 is contacting over the perimeter of the inner wall of groove
  • the contact thermal resistance between the inner walls of the grooves 5a and 5b and the refrigerant pipe 8 is small.
  • the heat transferred to the inside of the main bodies 3a and 3b is transferred to the refrigerant pipe 8 with high thermal conductivity through the inner walls of the grooves 5a and 5b. Thereby, the heat is exchanged with the refrigerant circulating in the refrigerant pipe 8 with high efficiency.
  • the heat sink 1 transmits the heat of the component to be cooled to the fins 4a, 4b or the refrigerant pipe 8 with high thermal conductivity. For this reason, the heat sink 1 is easy to suppress the temperature rise of the component to be cooled. In addition, the cooling capacity is high. Furthermore, the heat sink 1 radiates heat uniformly from the entire fins 4a and 4b. For this reason, uneven cooling is unlikely to occur.
  • the main body 3a has the right side surface 9a
  • the main body 3b has the left side surface 9b adjacent to the right side surface 9a.
  • the joint surface joining the right side surface 9a and the left side surface 9b extends in the vertical direction.
  • a groove 5a is provided on the right side surface 9a, and a groove 5b facing the groove 5a is provided on the left side surface 9b.
  • coolant piping 8 is arrange
  • the fins 4a and 4b can be uniformly arranged on the upper surfaces of the main bodies 3a and 3b. Thereby, in the heat sink 1, heat can be uniformly radiated by the fins 4a and 4b, and uneven cooling is less likely to occur.
  • the heat sink 1 is formed of two partial products 2a and 2b, but the heat sink 1a may be formed of three or more partial products.
  • FIG. 4 is a component configuration diagram of a modified example of the heat sink 1 according to the first embodiment.
  • FIG. 5 is a cross-sectional view of the modification.
  • the refrigerant pipe 8 is omitted for easy understanding.
  • the heat sink 1a includes partial parts 2a, 2b, and 2c as shown in FIGS.
  • the partial products 2a and 2b have the same configuration as the partial products 2a and 2b described in the first embodiment.
  • a partial product 2c is arranged between the partial products 2a and 2b.
  • the partial product 2c has a main body 3c and a plurality of fins 4c.
  • the left side surface 9c of the main body 3c is provided with a connecting convex portion 6b and a connecting concave portion 7c having the same configuration as the connecting convex portion 6b and the connecting concave portion 7b.
  • channel 5b which the partial goods 2b have is provided.
  • the connecting convex portion 6c is press-fitted into the connecting concave portion 6a of the partial product 2a and is fitted to the connecting concave portion 6a. Further, the connecting convex portion 7a of the partial product 2a is press-fitted into the connecting concave portion 7c, and the connecting convex portion 7a is fitted into the connecting concave portion 7c. Thereby, the left side surface 9c of the partial product 2c is matched with the right side surface 9a of the partial product 2a, and the partial product 2c is connected with the partial product 2a. Furthermore, the groove 5c of the partial product 2c is opposed to the groove 5a of the partial product 2a to form a refrigerant piping cavity 80. The refrigerant pipe 8 is passed through the refrigerant pipe cavity 80.
  • connection concave portion 6a of the partial product 2a On the other hand, on the right side surface 9d of the partial product 2c, as shown in FIG. 4, the connection concave portion 6a of the partial product 2a, the connection concave portion 6d having the same configuration as the connection convex portion 7a, and the connection convex portion are provided. 7d is provided. Moreover, the groove
  • the connecting convex portion 6b of the partial product 2b is press-fitted into the connecting concave portion 6d, and the connecting convex portion 6b is fitted into the connecting concave portion 6d.
  • the connecting convex portion 7d is press-fitted into the connecting concave portion 7b of the partial product 2b, and the connecting convex portion 7d is fitted into the connecting concave portion 7b.
  • the right side surface 9d of the partial product 2c is aligned with the left side surface 9b of the partial product 2b, and the partial product 2c is connected to the partial product 2b.
  • the groove 5d is opposed to the groove 5b of the partial product 2b, thereby forming a refrigerant pipe cavity 80 through which the refrigerant pipe 8 is passed.
  • the heat sink 1 may be formed by connecting the three partial products 2a, 2b, and 2c.
  • the refrigerant pipe 8 may be a single pipe bent into a U shape. In that case, the refrigerant pipe 8 is preferably passed through the refrigerant pipe cavity 80 formed by the grooves 5c and 5a and the refrigerant pipe cavity 80 formed by the grooves 5d and 5b. Further, heat conduction grease may be applied to the right side surface 9a of the partial product 2a, the left side surface 9c, the right side surface 9d of the partial product 2c, and the left side surface 9b of the partial product 2b in order to reduce thermal resistance.
  • Embodiment 2 In the modification according to the first embodiment shown in FIG. 4 and FIG. 5, the heat sink 1a has connecting convex portions 6c, 7d and connecting concave portions 7c, 6d on the left side surface 9c and the right side surface 9d of the main body 3c.
  • the provided partial product 2c is provided.
  • the heat sink 1b according to the second embodiment is manufactured by combining a plurality of partial products 2d having the same configuration as the partial product 2c.
  • the configuration of the heat sink 1b according to the second embodiment will be described with reference to FIG.
  • FIG. 6 is a cross-sectional view of the heat sink 1b according to the second embodiment. As shown in FIG. 6, the heat sink 1b includes a plurality of pieces 2d having the same shape.
  • Each partial product 2d has the same configuration as the partial product 2c described above. That is, each of the partial products 2d has a main body having the same configuration as the main body 3c of the partial product 2c and a plurality of fins having the same configuration as the fins 4c of the partial product 2c.
  • the left side surface 9e of the main body of the partial product 2c is provided with a groove 5c, a connecting convex portion 6c, a connecting convex portion 6e, and a connecting concave portion 7e having the same structure as the connecting concave portion 7c. It has been.
  • the right side surface 9f of the main body of the partial product 2c is provided with the groove 5d, the concave portion 6d for connection, the groove 5f having the same configuration as the convex portion 7d for connection, the concave portion 6f for connection, and the convex portion 7f for connection. It has been.
  • the left side surface 9e of one partial product 2d is aligned with the right side surface 9f of another partial product 2d. Further, the connecting convex portion 6e on the left side surface 9e is press-fitted and fitted into the connecting concave portion 6f on the right side surface 9f. The connecting convex portion 7f on the right side surface 9f is press-fitted into the connecting concave portion 7e on the left side surface 9e.
  • one partial product 2d of the plurality of partial products 2d is adjacent to another partial product 2d and connected to the other partial product 2d.
  • this direction is referred to as an adjacent direction in this specification.
  • the groove 5e on the left side surface 9e of one partial product 2d is opposed to the groove 5f on the right side surface 9f of another partial product 2d to form a refrigerant piping space 80.
  • the refrigerant pipe 8 is passed through the refrigerant pipe space 80.
  • the heat sink 1b according to the second embodiment is formed by connecting a plurality of pieces 2d having the same configuration. Since the heat sink 1b can be manufactured by manufacturing a plurality of parts 2d having the same configuration, it is easy to manufacture the heat sink 1b. Moreover, the manufacturing cost is low. For example, when the partial product 2d is manufactured by extrusion molding, since only one type of mold needs to be manufactured, the manufacturing cost and the management cost of the mold can be reduced and the manufacturing cost can be reduced.
  • the heat sink 1b can be manufactured in accordance with the size of the component to be cooled by increasing or decreasing the number of the partial parts 2d to be connected, the manufacturing cost of the heat sink 1b is hardly increased even if the size of the component to be cooled is changed. .
  • Embodiment 3 In the heat sink 1b according to Embodiment 2, the refrigerant pipe 8 is passed through all the refrigerant pipe spaces 80, but the present invention is not limited to this. In the heat sink 1c according to the third embodiment, the refrigerant pipe 8 is passed through some of the refrigerant pipe spaces 80 among the plurality of refrigerant pipe spaces 80 in accordance with the position of the component to be cooled and the amount of heat generated. .
  • the structure of the heat sink 1c according to Embodiment 3 will be described with reference to FIG.
  • FIG. 7 is a cross-sectional view of the heat sink 1c according to the third embodiment.
  • the same reference numerals as those in FIG. 6 are omitted.
  • the heat sink 1c includes a plurality of partial products 2d described in the second embodiment.
  • the plurality of partial products 2d are connected by the method described in the modification of the first embodiment.
  • coolant piping is formed between the adjacent partial products 2d.
  • the heat sink 1c has a plurality of refrigerant piping spaces 80.
  • Heat generating members 40 and 41 which are parts to be cooled, are attached to the lower surface of the heat sink 1c.
  • the heat generating member 40 generates a larger amount of heat than the heat generating member 41.
  • the heat generating member 40 needs to be cooled more than the heat generating member 41. Therefore, in the heat sink 1c, the refrigerant pipe 8 is passed only through the refrigerant pipe space 80 in the vicinity of the heat generating member 40 in order to further cool the heat generating member 40. That is, the refrigerant pipe 8 is passed only through the refrigerant pipe space 80 located on the heat generating member 40. On the other hand, the refrigerant pipe 8 is not passed through the refrigerant pipe space 80 located above the heat generating member 41.
  • the heat generating member 40 with a large calorific value can be cooled with high efficiency. Furthermore, the heat generating member 41 having a small heat generation amount is not easily overcooled. As a result, the heat generating member 41 is difficult to condense.
  • the refrigerant pipe 8 is passed through a part of the plurality of refrigerant pipe spaces 80 according to the distribution of heat generation of the parts to be cooled. For this reason, the heat sink 1c has high cooling efficiency.
  • Embodiment 4 The heat sink 1 described in the first embodiment may be used for the outdoor unit 21 of the air conditioner.
  • the heat sink 1 is used for the outdoor unit 21 of the air-conditioning apparatus according to Embodiment 4.
  • the configuration of the outdoor unit 21 of the air-conditioning apparatus according to Embodiment 4 will be described with reference to FIGS.
  • FIG. 8 is a perspective view of the outdoor unit of the air-conditioning apparatus according to Embodiment 4.
  • FIG. 9 is a perspective view of the electrical component box 12 included in the outdoor unit.
  • FIG. 10 is a cross-sectional view of the electrical component box 12.
  • the air conditioner includes an indoor unit (not shown) and an outdoor unit 21 shown in FIG.
  • the outdoor unit 21 is connected to the indoor unit through a connection pipe, and the refrigerant circulates between the outdoor unit 21 and the indoor unit through the connection pipe.
  • the outdoor unit 21 is connected to the indoor unit by an electric wire wired in the connection pipe, and power is supplied from the indoor unit.
  • the outdoor unit 21 is composed of three parts arranged in the order of the air blowing unit 18, the heat exchange unit 19, and the machine unit 20 from the top.
  • the air blowing unit 18 is disposed on the housing 22 of the outdoor unit 21, and the heat exchange unit 19 and the machine unit 20 are accommodated inside the housing 22.
  • the air blower 18 is disposed on an opening (not shown) formed on the top plate of the housing 22.
  • a fan 10 that sucks air in the housing 22 is provided inside the blower 18.
  • an air inlet 13 is provided at the lower part of the side surface of the casing of the outdoor unit 21. For this reason, the air blower 18 takes in air from the air inlet 13 into the housing 22 by rotating the fan 10 and sucks in the air in the housing 22, and the air that has been taken in is not shown in the housing 22. Exhaust through the opening.
  • the heat exchange unit 19 includes a heat exchanger 11 (not shown) having a refrigerant pipe through which a refrigerant flows and a plurality of thin metal plates (not shown).
  • the heat exchanger 11 is disposed inside the side wall of the housing 22 of the outdoor unit 21. For this reason, in the heat exchanger 11, when the fan 10 rotates and air is blown, the blown air hits, and the air and the refrigerant in the refrigerant pipe exchange heat. Here, the refrigerant transports heat between an indoor unit (not shown) that forms the refrigeration cycle and the outdoor unit 21. Further, since the air conditioner operates in a plurality of operation modes, the relationship between the temperature of the refrigerant in the refrigerant pipe and the ambient environment temperature of the outdoor unit 21 varies depending on the operation mode.
  • the temperature of the refrigerant is cooler than the air around the outdoor unit 21, and the cooling mode mainly used in summer in order to cool the room. Then, the temperature of the refrigerant is warmer than the air around the outdoor unit 21. For this reason, the heat exchanger 11 absorbs heat in the heating mode and dissipates heat in the cooling mode when wind generated by the rotation of the fan 10 is applied. Thus, the heat exchanger 11 exchanges heat through an indoor unit (not shown) and the refrigerant.
  • the machine unit 20 includes a compressor, an accumulator, and the like (not shown).
  • the compressor is driven by an electronic component 14 having an inverter circuit 17. Since the electronic component 14 is composed of a semiconductor component, it often generates a large amount of heat, and some heat dissipation or cooling measures are required to use it safely without failure. Therefore, the mechanical unit 20 includes the electronic component 14 and the electrical component box 12 provided with the heat sink 1 described in the first embodiment.
  • the mechanical unit 20 includes an electrical component box 12 formed in a rectangular parallelepiped shape.
  • An opening (not shown) is formed on one surface of the electrical component box 12.
  • the heat sink 1 is disposed on the surface of the electrical component box 12 where the opening is formed.
  • the heat sink 1 is fixed to the electrical component box 12 with fastening members such as screws and bolts.
  • the heat sink 1 is in contact with an electronic component 14 that is a component to be cooled in the electrical component box 12 through the opening.
  • the heat sink 1 includes the refrigerant pipe 8 as described in the first embodiment.
  • the refrigerant pipe 8 circulates through the refrigerant pipe of the heat exchanger 11 and a part of the refrigerant circulating in the outdoor unit 21 and an indoor unit (not shown) is diverted.
  • the temperature of the refrigerant is lower than the temperature of the electronic component 14 that is the component to be cooled.
  • the heat sink 1 since the heat sink 1 is in contact with the electronic component 14, the heat of the electronic component 14 is transmitted to the main bodies 3 a and 3 b included in the heat sink 1 and further transmitted to the refrigerant pipe 8.
  • the heat transferred to the refrigerant pipe 8 is conducted from the refrigerant pipe 8 to the refrigerant. Thereby, the heat of the electronic component 14 is radiated to the refrigerant. As a result, the electronic component 14 is cooled.
  • the electrical component box 12 is located below the heat exchanger 11 and is away from the air blower 18, the wind does not sufficiently flow through the heat sink 1 as it is. Therefore, in order to supply wind to the heat sink 1, the electrical component box 12 is provided with a duct 15 that accommodates the heat sink 1 therein.
  • the outdoor unit 21 of the air-conditioning apparatus according to Embodiment 4 includes the heat sink 1 according to Embodiment 1 that cools the electronic component 14 that drives the compressor. Hard to overheat and hard to break down. As a result, the outdoor unit 21 can operate stably.
  • the heat sink 1 according to the first embodiment is applied to the outdoor unit 21 of the air conditioner.
  • the outdoor unit 21 includes the heat sink 1a according to the modification of the first embodiment and The heat sinks 1b and 1c according to Embodiment 2-3 may also be applied.
  • Embodiment 1-4 the fins 4a-4c are integrally formed with the main bodies 3a-3c.
  • the present invention is not limited to this.
  • FIG. 11 is a cross-sectional view of another modification of the heat sink 1 according to the first embodiment.
  • the partial product 2e includes a main body 3a and a plurality of fins 4d formed separately from the main body 3a.
  • the main body 3a has a plurality of projecting walls 31 that are arranged on the upper surface side at equal pitches in the left-right direction and in which a depression having a rectangular shape in cross section is formed at the center.
  • the lower ends of the fins 4d are fitted in the recesses of the protruding wall 31.
  • the plurality of fins 4d are thermally coupled to the main body 3a.
  • the fins 4a-4c may be formed separately from the main bodies 3a-3c. In this case, the fins 4a-4c only need to be thermally coupled to the main bodies 3a-3c.
  • the fins 4a-4c are arranged on the upper surfaces of the heat sinks 1 and 1a-1c.
  • the direction in which the fins 4a-4c are arranged is arbitrary as long as the fins 4a-4c are provided on one side of the main body 3a-3c.
  • the heat sinks 1 and 1a-1c may be used in a state where the fins 4a-4c are provided on one surface side of the main body 3a-3c and a component to be cooled is provided on the other surface side.
  • the fins 4a-4c are arranged at an equal pitch, but the pitch of the fins 4a-4c is arbitrary.
  • the number of fins 4a-4c is also arbitrary. In order to uniformly apply air to the entire plurality of fins 4a-4c, it is desirable that the fins 4a-4c have an equal pitch.
  • the pitch of the fins 4a-4c varies depending on the position of the component to be cooled and the heat distribution. May be.
  • the fins 4a-4c and the grooves 5a-5f extend in the same direction.
  • the fins 4a-4c and the refrigerant pipe 8 extend in the same direction.
  • the present invention is not limited to this.
  • the relationship between the extending direction of the fins 4a-4c and the extending direction of the grooves 5a-5f and the refrigerant pipe 8 is arbitrary. Since the fins 4a-4c are integrally formed with the main body 3a-3c by extrusion molding, the fins 4a-4c may be extended in the extending direction of the grooves 5a-5f and the refrigerant pipe 8. However, by forming by other manufacturing methods, the fins 5a-5f and the refrigerant 4 You may extend
  • each of the fins 4a-4c may be a plurality of pin members.
  • the pin members may be arranged in the extending direction of the grooves 5a-5f and the refrigerant pipe 8.
  • the grooves 5a-5f are semicircular in cross section, and as a result, the refrigerant pipe space 80 is circular in cross section.
  • the present invention is not limited to this.
  • the shape of the grooves 5a-5f is arbitrary as long as it can be passed through the refrigerant piping space 80 to be formed.
  • the grooves 5a-5f may have a shape obtained by dividing the flat into two in the cross-sectional view.
  • the inner walls of the grooves 5a-5f are preferably in contact with the entire circumference of the refrigerant pipe 8 in a cross section in order to facilitate heat conduction.
  • the inner walls of the grooves 5a-5f are preferably thermally coupled to the refrigerant pipe 8.
  • the partial products 2a-2e and the refrigerant pipe 8 are preferably thermally coupled.
  • the part 2a-2e has fine irregularities due to manufacturing variations, scratches, surface roughness, etc., and the refrigerant pipe 8 also has fine irregularities to prevent point contact as much as possible.
  • a heat conducting member for example, heat conduction grease
  • the component 2a-2e is connected by the connecting convex portions 6b, 6c, 6e, 7a, 7d, 7f and the connecting concave portions 6a, 6d, 6f, 7b, 7c, 7e.
  • Heat sinks 1 and 1a-1c are formed.
  • the means for connecting the partial products 2a-2e is arbitrary.
  • the partial products 2a-2e may be joined using an adhesive, a brazing material, or the like.
  • the connecting projections 6b, 6c, 6e, 7a, 7d, and 7f and the connecting recesses 6a, 6d, 6f, 7b, 7c, and 7e may not be formed on the main body 3a-3c.
  • the number of sets is limited. There is no. Further, the combination of the connecting convex portions 6b, 6c, 6e, 7a, 7d, 7f and the connecting concave portions 6a, 6d, 6f, 7b, 7c, 7e is not necessarily limited to the connecting convex portion 6b.
  • 6c, 6e, 7a, 7d, 7f and the connecting recesses 6a, 6d, 6f, 7b, 7c, 7e are not necessarily formed, and the connecting recesses 6a, 6d, 6f, 7b, Only the projections 6b, 6c, 6e, 7a, 7d, and 7f may be formed on the other partial product 2a-2e only for 7c and 7e.

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Abstract

A heat sink (1) is provided with: a body (3a) having a first surface in which a first groove is provided; a fin (4a) provided on one surface side of the body (3a); a body (3b) which has a second surface adjacent to the first surface and has, formed in the second surface, a second groove extending in the direction in which the first groove extends and facing the first groove; a fin (4b) provided on one surface side of the body (3b); and refrigerant piping (8) provided between the first groove and the second groove.

Description

ヒートシンク、ヒートシンクの使用方法及び空気調和装置Heat sink, method of using heat sink, and air conditioner
　本発明は、ヒートシンク、ヒートシンクの使用方法及び空気調和装置に関する。 The present invention relates to a heat sink, a method of using the heat sink, and an air conditioner.
　空気調和装置の室外機には、圧縮機を駆動するインバータが半導体部品で構成されているものがある。半導体部品は、動作すると発熱するため、高温になって故障してしまうことがある。そこで、半導体部品の故障を防ぐため、半導体部品を放熱または冷却する方法が室外機に採用されることがある。例えば、半導体部品に放熱・冷却手段であるヒートシンクを装着し、そのヒートシンクにファンで発生させた風を当てることによって、半導体部品を空冷する方法が採用されることがある。また、空気調和装置の熱交換に使用する冷媒の一部をヒートシンク内の配管に流通させることによって、半導体部品を冷却する方法が採用されることがある（例えば特許文献１）。 Some outdoor units of an air conditioner include an inverter that drives a compressor composed of semiconductor components. Since semiconductor components generate heat when they operate, they may become hot and fail. Therefore, in order to prevent failure of the semiconductor component, a method of radiating or cooling the semiconductor component is sometimes adopted for the outdoor unit. For example, a method in which a semiconductor component is air-cooled by mounting a heat sink as a heat radiating / cooling unit on the semiconductor component and applying a wind generated by a fan to the heat sink may be employed. Moreover, a method of cooling a semiconductor component may be employed by circulating a part of the refrigerant used for heat exchange of the air conditioner through a pipe in the heat sink (for example, Patent Document 1).
　空冷による冷却方法は、従来の室外機のファンでは冷却能力が足りず、その結果、専用のファンをさらに設けることになるという問題がある。一方、冷媒による冷却方法は、空気調和装置の冷媒をヒートシンクと共用するため、空気調和装置の冷却能力に影響が及んでしまうという問題がある。それらの問題を解決するために、空冷と冷媒冷却を組み合わせたヒートシンクで半導体部品を冷却することが提案されている（例えば特許文献２）。このようなヒートシンクを用いることによって、ヒートシンクの冷却能力が向上する。すなわち、空気調和装置の冷却能力に対する影響が小さく、従来の室外機のファンを共用できるヒートシンクが得られる。また、ヒートシンク自体のサイズも小型化することが出来る。 The cooling method by air cooling has a problem that a conventional outdoor unit fan has insufficient cooling capacity, and as a result, a dedicated fan is additionally provided. On the other hand, the cooling method using the refrigerant shares the refrigerant of the air conditioner with the heat sink, and thus has a problem that the cooling capacity of the air conditioner is affected. In order to solve these problems, it has been proposed to cool semiconductor components with a heat sink combining air cooling and refrigerant cooling (for example, Patent Document 2). By using such a heat sink, the cooling capacity of the heat sink is improved. That is, the heat sink which has a small influence on the cooling capacity of the air conditioner and can share the fan of the conventional outdoor unit can be obtained. Also, the size of the heat sink itself can be reduced.
特開平９－２７１８６３号公報Japanese Patent Laid-Open No. 9-271863 特開２０００－３０４４７６号公報JP 2000-304476 A
　しかしながら、特許文献１に記載のヒートシンクは、二枚の金属プレートが重ね合わされて連結されている。そして、一方の金属プレートの被冷却部品を装着する面と、二枚の金属プレートを互いに接合する面と、が平行である。このため、特許文献１に記載のヒートシンクのもう一方の金属プレートにフィンを設けた場合、被冷却部品からフィンの先端までの間に、一方の金属プレートと他方の金属プレートとの間の接合面が存在してしまう。この接合面の接触熱抵抗により、被冷却部品からフィンの先端までの熱抵抗が大きくなってしまう。その結果、ヒートシンク内の熱伝導が阻害され、ヒートシンクの冷却能力が低下するという問題が生じてしまう。 However, the heat sink described in Patent Document 1 has two metal plates overlapped and connected. And the surface which mounts the to-be-cooled components of one metal plate and the surface which joins two metal plates mutually are parallel. For this reason, when a fin is provided on the other metal plate of the heat sink described in Patent Document 1, a joint surface between one metal plate and the other metal plate between the component to be cooled and the tip of the fin. Will exist. Due to the contact thermal resistance of the joint surface, the thermal resistance from the part to be cooled to the tip of the fin is increased. As a result, heat conduction in the heat sink is hindered, resulting in a problem that the cooling capacity of the heat sink is reduced.
　また、特許文献２に記載のヒートシンクには、フィンを設置する面上に、冷媒配管を設置するスペースを設ける必要がある。そのスペースには、フィンを設置することができない。これにより、フィンを設置する面でフィンがある箇所とない箇所が混在してしまう。その結果、フィンがない箇所が原因となり、フィン間を通り抜ける風量が不均一になりやすい。これにより、冷却面が不均一に冷却される、いわゆる冷却ムラが発生するという問題がある。 In the heat sink described in Patent Document 2, it is necessary to provide a space for installing the refrigerant pipe on the surface on which the fin is installed. Fins cannot be installed in that space. Thereby, in the surface which installs a fin, the location with a fin and the location which does not exist will be mixed. As a result, the location where there are no fins is the cause, and the amount of air passing between the fins tends to be uneven. Thereby, there is a problem that so-called cooling unevenness occurs in which the cooling surface is cooled unevenly.
　本発明の目的は上記課題を解決し、冷却能力の低下を防ぎ、また冷却ムラが発生しにくいヒートシンクを得ることである。 The object of the present invention is to solve the above problems, to obtain a heat sink that prevents a decrease in cooling capacity and is less likely to cause uneven cooling.
　本発明に係るヒートシンクは、第１の溝が設けられた第１の面を有する第１の本体と、第１の本体の、一方の面の側に設けられた第１のフィンと、第１の面と隣接する第２の面を有する第２の本体と、第２の本体の、一方の面の側にある面の側に設けられた第２のフィンと、を備えている。第２の本体には、第２の面に、第１の溝が延伸する方向に延伸すると共に、第１の溝と対向する第２の溝が設けられている。また、ヒートシンクは、第１の溝と第２の溝の間に設けられた冷媒配管を備えている。 A heat sink according to the present invention includes a first main body having a first surface provided with a first groove, a first fin provided on one side of the first main body, and a first fin. A second main body having a second surface adjacent to the first surface, and a second fin provided on the surface of the second main body on the one surface side. The second main body is provided with a second groove on the second surface that extends in the direction in which the first groove extends and faces the first groove. Moreover, the heat sink is provided with the refrigerant | coolant piping provided between the 1st groove | channel and the 2nd groove | channel.
　本発明に係るヒートシンクは、第１の本体が第１の面を有し、第２の本体が第１の面と隣接する第２の面を有する。このため、第１の本体と第２の本体には、第１のフィンと第２のフィンが設けられた一方の面の側からその反対の他方の面の側に向かって、熱伝導を阻害する接合面が存在しない。その結果、接合面によって接触熱抵抗が高まることが無い。したがって、他方の面の側に被冷却部品が配置された場合に、その他方の面の側から第１のフィンと第２のフィンが設けられた一方の面の側までの熱抵抗が小さい。これにより、被冷却部品から第１のフィンと第２のフィンへの熱伝導が阻害されにくい。その結果、ヒートシンクでは、冷却能力が高い。 In the heat sink according to the present invention, the first main body has a first surface, and the second main body has a second surface adjacent to the first surface. For this reason, the first main body and the second main body impede heat conduction from the side of one surface where the first fin and the second fin are provided toward the other side opposite thereto. There is no bonding surface to be used. As a result, the contact thermal resistance is not increased by the joint surface. Accordingly, when the component to be cooled is arranged on the other surface side, the thermal resistance from the other surface side to the one surface side where the first fin and the second fin are provided is small. Thereby, the heat conduction from the component to be cooled to the first fin and the second fin is hardly hindered. As a result, the heat sink has a high cooling capacity.
　また、このヒートシンクでは、第１の面に第１の溝が設けられ、第２の面に、第１の溝が延伸する方向に延伸すると共に、第１の溝と対向する第２の溝が設けられている。そして、第１の溝と第２の溝の間に冷媒配管が設けられている。このため、第１の本体及び第２の本体の一方の面の側に冷媒配管を設置するスペースを設ける必要がない。その結果、このヒートシンクでは、第１の本体及び第２の本体の一方の面の側に、連続して第１のフィンと第２のフィンを設けることができる。これにより、第１のフィンと第２のフィンには、均一に風が当たることとなる。その結果、ヒートシンクでは、被冷却部品を他方の面の側に配置して冷却する際に、冷却ムラが発生しにくい。 In this heat sink, the first groove is provided on the first surface, the second groove extends in the direction in which the first groove extends, and the second groove facing the first groove is provided on the second surface. Is provided. A refrigerant pipe is provided between the first groove and the second groove. For this reason, it is not necessary to provide the space which installs refrigerant | coolant piping in the one surface side of a 1st main body and a 2nd main body. As a result, in this heat sink, the first fin and the second fin can be continuously provided on one surface side of the first main body and the second main body. As a result, the first fin and the second fin are uniformly blown by the wind. As a result, in the heat sink, when the component to be cooled is arranged and cooled on the other surface side, uneven cooling is less likely to occur.
実施の形態１に係るヒートシンクの斜視図1 is a perspective view of a heat sink according to Embodiment 1. FIG. 実施の形態１に係るヒートシンクが備える２個の部分品の断面図Sectional drawing of the two partial products with which the heat sink concerning Embodiment 1 is provided 実施の形態１に係るヒートシンクの断面図Sectional drawing of the heat sink concerning Embodiment 1 実施の形態１に係るヒートシンクの変形例の３個の部分品の断面図Sectional drawing of the three partial products of the modification of the heat sink concerning Embodiment 1 実施の形態１に係るヒートシンクの変形例の断面図Sectional drawing of the modification of the heat sink which concerns on Embodiment 1. FIG. 実施の形態２に係るヒートシンクの断面図Sectional drawing of the heat sink concerning Embodiment 2 実施の形態３に係るヒートシンクの断面図Sectional drawing of the heat sink concerning Embodiment 3 実施の形態４に係る空気調和装置の室外機の斜視図The perspective view of the outdoor unit of the air conditioning apparatus which concerns on Embodiment 4. FIG. 実施の形態４に係る空気調和装置の室外機が備える電気品箱の斜視図The perspective view of the electrical component box with which the outdoor unit of the air conditioning apparatus which concerns on Embodiment 4 is provided. 実施の形態４に係る空気調和装置の室外機が備える電気品箱の断面図Sectional drawing of the electrical component box with which the outdoor unit of the air conditioning apparatus which concerns on Embodiment 4 is provided. 実施の形態１に係るヒートシンクの別の変形例の断面図Sectional drawing of another modification of the heat sink which concerns on Embodiment 1. FIG.
実施の形態１
　以下、本実施の形態に係るヒートシンク１の構成を図１－図５を用いて説明する。図１は、実施の形態１に係るヒートシンク１の斜視図である。図２は、実施の形態１に係るヒートシンク１が備える２個の部分品２ａ、２ｂの断面図である。図３は、実施の形態１に係るヒートシンク１の断面図である。なお、図３は、図１に示すＩＩＩ－ＩＩＩ断面線の断面を示している。 Embodiment 1
Hereinafter, the configuration of the heat sink 1 according to the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view of a heat sink 1 according to the first embodiment. FIG. 2 is a cross-sectional view of two partial products 2a and 2b provided in the heat sink 1 according to the first embodiment. FIG. 3 is a cross-sectional view of the heat sink 1 according to the first embodiment. FIG. 3 shows a cross section taken along the line III-III shown in FIG.
　ヒートシンク１は、図１に示すように、部分品２ａ、２ｂを備えている。部分品２ａ、２ｂは、図１の上下方向を押しだし方向とする押し出し成型により製造されている。このため、部分品２ａ、２ｂは、押し出し方向に垂直な断面で一定の形状を有する。以下、部分品２ａ、２ｂがこの垂直な断面で一定の形状であることから、部分品２ａ、２ｂの、押し出し方向に垂直な断面を図示する図２及び図３を用いて説明する。なお、後述する図４－図７も、図２及び図３と同じ断面を図示している。 As shown in FIG. 1, the heat sink 1 includes partial parts 2 a and 2 b. The partial products 2a and 2b are manufactured by extrusion molding in which the vertical direction in FIG. For this reason, the partial products 2a and 2b have a fixed shape in a cross section perpendicular to the extrusion direction. Hereinafter, since the partial products 2a and 2b have a fixed shape in the vertical cross section, description will be made with reference to FIGS. 2 and 3 illustrating the cross sections of the partial products 2a and 2b perpendicular to the extrusion direction. 4 to 7 described later also show the same cross section as FIG. 2 and FIG.
　部分品２ａは、図２に示すように、断面視矩形状の本体３ａと、複数の平板状のフィン４ａと、を有している。 As shown in FIG. 2, the partial product 2a includes a main body 3a having a rectangular shape in cross section and a plurality of flat fins 4a.
　本体３ａは、断面視矩形状に形成されている。本体３ａの一方の面の側、すなわち本体３ａの上面側には、複数のフィン４ａが設けられている。また、本体３ａの右側面９ａには、円筒形状の冷媒配管８を配置するため、溝５ａが形成されている。右側面９ａには、連結用凹部６ａと連結用凸部７ａが形成されている。
　なお、本明細書では、本体３ａを第１の本体ともいい、右側面９ａを第１の面ともいう。また、溝５ａを第１の溝ともいい、連結用凹部６ａと連結用凸部７ａのことを単に、凹部、凸部ともいう。 The main body 3a is formed in a rectangular shape in sectional view. A plurality of fins 4a are provided on one surface side of the main body 3a, that is, on the upper surface side of the main body 3a. Further, a groove 5a is formed on the right side surface 9a of the main body 3a in order to arrange the cylindrical refrigerant pipe 8. On the right side surface 9a, a connecting concave portion 6a and a connecting convex portion 7a are formed.
In the present specification, the main body 3a is also referred to as a first main body, and the right side surface 9a is also referred to as a first surface. The groove 5a is also referred to as a first groove, and the connecting recess 6a and the connecting protrusion 7a are also simply referred to as a recess and a protrusion.
　溝５ａは、断面視半円状に形成されている。そして、溝５ａは、押し出し成形時の押し出し方向に向かって延伸している。 The groove 5a is formed in a semicircular shape in sectional view. And the groove | channel 5a is extended | stretched toward the extrusion direction at the time of extrusion molding.
　これに対して、連結用凹部６ａは、右側面９ａから本体３ａの内側に窪んでいる。その断面形状は、奥側に先端を向け、その先端に向かうほど湾曲した鉤状の形状である。連結用凹部６ａは、その断面形状のまま、溝５ａと同方向に延伸している。そして、連結用凹部６ａは、溝５ａの上側に配置されている。溝５ａの下側に、連結用凸部７ａが配置されている。 In contrast, the connecting recess 6a is recessed from the right side surface 9a to the inside of the main body 3a. The cross-sectional shape is a bowl-like shape that is curved toward the front end with the front end facing the back side. The connecting recess 6a extends in the same direction as the groove 5a while maintaining its cross-sectional shape. And the connection recessed part 6a is arrange | positioned above the groove | channel 5a. A connecting convex portion 7a is disposed below the groove 5a.
　連結用凸部７ａは、右側面９ａから本体３ａの外側へ突出している。その断面形状は、本体３ａの外側へ長手方向を向けた矩形の形状である。連結用凸部７ａは、その断面形状のまま、溝５ａと同方向に延伸している。連結用凸部７ａは、可撓性を有し、弾性変形可能である。 The connecting convex portion 7a protrudes from the right side surface 9a to the outside of the main body 3a. The cross-sectional shape is a rectangular shape whose longitudinal direction is directed to the outside of the main body 3a. The connecting convex portion 7a extends in the same direction as the groove 5a while maintaining its cross-sectional shape. The connecting convex portion 7a has flexibility and is elastically deformable.
　フィン４ａは、矩形の板の形状に形成されている。そして、短手方向を上に向けている。また、長手方向を図２の手前から奥の方向、すなわち、溝５ａと同方向に向けている。そして、フィン４ａは、左右方向に向かって一定のピッチで配置されている。最右端にあるフィン４ａは、右側面９ａから半ピッチだけ離れた位置に設けられている。 The fin 4a is formed in the shape of a rectangular plate. And the short direction is turned up. Further, the longitudinal direction is directed from the front of FIG. 2 to the back, that is, in the same direction as the groove 5a. The fins 4a are arranged at a constant pitch in the left-right direction. The fin 4a at the rightmost end is provided at a position separated from the right side surface 9a by a half pitch.
　また、フィン４ａは、押し出し成型によって、本体３ａと一体形成されている。なお、本明細書では、フィン４ａを第１のフィンともいう。 Further, the fin 4a is integrally formed with the main body 3a by extrusion molding. In the present specification, the fin 4a is also referred to as a first fin.
　上述したように、部分品２ａは、本体３ａと複数のフィン４ａを有している。部分品２ｂも、部分品２ａと同様に、断面視矩形状の本体３ｂと、複数の平板状のフィン４ｂと、を有している。 As described above, the partial product 2a includes the main body 3a and the plurality of fins 4a. Similarly to the partial product 2a, the partial product 2b also includes a main body 3b having a rectangular shape in sectional view and a plurality of flat fins 4b.
　本体３ｂは、本体３ａと同様に、断面視矩形状に形成されている。その大きさは、本体３ａと同じである。また、本体３ｂの上面側には、本体３ａと同様に、複数のフィン４ｂが設けられている。一方、本体３ｂでは、左側面９ｂに、冷媒配管８を配置するための溝５ｂが形成されている。また、左側面９ｂに、連結用凹部７ｂと連結用凸部６ｂが形成されている。
　なお、本明細書では、本体３ｂを第２の本体ともいい、左側面９ｂを第２の面ともいう。また、溝５ｂを第２の溝ともいい、連結用凹部７ｂと連結用凸部６ｂのことを単に、凹部、凸部ともいう。 The main body 3b is formed in a rectangular shape in sectional view, like the main body 3a. Its size is the same as that of the main body 3a. Moreover, the several fin 4b is provided in the upper surface side of the main body 3b similarly to the main body 3a. On the other hand, in the main body 3b, a groove 5b for arranging the refrigerant pipe 8 is formed on the left side surface 9b. Moreover, the connection recessed part 7b and the connection convex part 6b are formed in the left side surface 9b.
In the present specification, the main body 3b is also referred to as a second main body, and the left side surface 9b is also referred to as a second surface. Further, the groove 5b is also referred to as a second groove, and the connecting recess 7b and the connecting protrusion 6b are also simply referred to as a recess and a protrusion.
　溝５ｂは、本体３ａに形成された溝５ａと左右対称であることを除いて、同じ構成を備えている。一方、本体３ｂの左側面９ｂは、本体３ａの右側面９ａと当接可能にするため、右側面９ａと同形状に形成されている。溝５ｂは、後述するように、本体３ｂの左側面９ｂが本体３ａの右側面９ａに合わせられたときに、溝５ａと対向する。さらに、溝５ｂは、溝５ａの内壁とつながって、断面視円形状の冷媒配管用空洞８０を形成する。 The groove 5b has the same configuration except that it is symmetrical to the groove 5a formed in the main body 3a. On the other hand, the left side surface 9b of the main body 3b is formed in the same shape as the right side surface 9a in order to be able to contact the right side surface 9a of the main body 3a. As will be described later, the groove 5b faces the groove 5a when the left side surface 9b of the main body 3b is aligned with the right side surface 9a of the main body 3a. Further, the groove 5b is connected to the inner wall of the groove 5a to form a refrigerant pipe cavity 80 having a circular shape in cross section.
　これに対して、連結用凹部７ｂ、連結用凸部６ｂは、本体３ａに形成された連結用凹部６ａ、連結用凸部７ａと左右対称の形状を有するが、連結用凹部７ｂ、連結用凸部６ｂの溝５ｂに対する位置は、本体３ａの連結用凹部６ａ、連結用凸部７ａと異なっている。 On the other hand, the connection recess 7b and the connection protrusion 6b are symmetrical to the connection recess 6a and the connection protrusion 7a formed in the main body 3a, but the connection recess 7b and the connection protrusion The position of the portion 6b with respect to the groove 5b is different from the connecting concave portion 6a and the connecting convex portion 7a of the body 3a.
　詳細には、連結用凹部７ｂは、溝５ｂの下側に配置されている。そして、連結用凹部７ｂは、本体３ａの連結用凸部７ａと上下方向に同じ位置に設けられている。一方、連結用凸部６ｂは、溝５ｂの上側に配置されている。連結用凸部６ｂは、本体３ａの連結用凹部６ａと上下方向に同じ位置に設けられている。 Specifically, the connecting recess 7b is disposed below the groove 5b. And the connection recessed part 7b is provided in the same position in the up-down direction as the connection convex part 7a of the main body 3a. On the other hand, the connecting convex portion 6b is disposed on the upper side of the groove 5b. The connecting convex portion 6b is provided at the same position in the vertical direction as the connecting concave portion 6a of the main body 3a.
　フィン４ｂは、最左端にあるフィン４ｂが本体３ｂの左側面９ｂから半ピッチの距離に配置されていることを除いて、フィン４ａと同じ構成を備える。フィン４ｂは、部分品２ｂが押し出し成型で製造されることにより、本体３ｂと一体形成されている。
　なお、本明細書では、フィン４ｂを第２のフィンともいう。 The fin 4b has the same configuration as the fin 4a except that the leftmost fin 4b is disposed at a half pitch distance from the left side surface 9b of the main body 3b. The fin 4b is integrally formed with the main body 3b by manufacturing the part 2b by extrusion molding.
In the present specification, the fin 4b is also referred to as a second fin.
　ヒートシンク１は、図３に示すように、部分品２ａと２ｂが左右方向に連結することにより形成されている。詳細には、本体３ａの右側面９ａが本体３ｂの左側面９ｂに当接されている。また、本体３ａの連結用凸部７ａは、本体３ｂの連結用凹部７ｂに圧入されている。さらに、本体３ｂの連結用凸部６ｂは、本体３ａの連結用凹部６ａに圧入されている。 The heat sink 1 is formed by connecting the partial products 2a and 2b in the left-right direction as shown in FIG. Specifically, the right side surface 9a of the main body 3a is in contact with the left side surface 9b of the main body 3b. Further, the connecting convex portion 7a of the main body 3a is press-fitted into the connecting concave portion 7b of the main body 3b. Further, the connecting convex portion 6b of the main body 3b is press-fitted into the connecting concave portion 6a of the main body 3a.
　連結用凸部７ａは、圧入によって断面視で先端が湾曲した鈎状の形状に弾性変形している。これにより、連結用凸部７ａは、連結用凹部７ｂに嵌合している。また、その先端が連結用凹部７ｂの湾曲した内壁に係止している。その結果、連結用凸部７ａによって、本体３ａが本体３ｂに連結されている。さらに、連結用凸部７ａは、本体３ａ、３ｂを互いに離す力が作用しても、本体３ａ、３ｂの連結を維持する。 The connecting convex portion 7a is elastically deformed into a bowl-like shape having a curved tip in a sectional view by press-fitting. Thereby, the connecting convex portion 7a is fitted in the connecting concave portion 7b. Further, the tip is locked to the curved inner wall of the connecting recess 7b. As a result, the main body 3a is connected to the main body 3b by the connecting convex portion 7a. Further, the connecting convex portion 7a maintains the connection between the main bodies 3a and 3b even when a force for separating the main bodies 3a and 3b from each other acts.
　また、連結用凸部６ｂは、本体３ａの連結用凸部７ａと同様に、圧入によって断面視で先端が湾曲した鈎状の形状に弾性変形し、その結果、連結用凹部６ａに嵌合している。また、先端が連結用凹部６ａの湾曲した内壁に係止している。これにより、連結用凸部６ｂは、本体３ｂを本体３ａに連結している。さらに、連結用凸部６ｂは、連結用凸部７ａと同様に、本体３ａ、３ｂの連結を維持する。 Similarly to the connecting projection 7a of the main body 3a, the connecting projection 6b is elastically deformed into a bowl-like shape having a curved tip in a sectional view by press-fitting, and as a result, is fitted into the connecting recess 6a. ing. Further, the tip is locked to the curved inner wall of the connecting recess 6a. Thereby, the convex part 6b for connection has connected the main body 3b to the main body 3a. Furthermore, the connection convex part 6b maintains the connection of the main bodies 3a and 3b in the same manner as the connection convex part 7a.
　一方、フィン４ａと４ｂは、部分品２ａの最右端にあるフィン４ａが右側面９ａから半ピッチの位置に配置され、かつ部分品２ｂの最左端にあるフィン４ｂが左側面９ｂから半ピッチの位置に配置されているので、全体として一定のピッチで左右方向に配列している。その結果、フィン４ａと４ｂは、本体３ａ、３ｂの上面側に均一に分布し、本体３ａ、３ｂの熱を偏り無く放熱する。 On the other hand, in the fins 4a and 4b, the fin 4a at the rightmost end of the part 2a is arranged at a half pitch position from the right side 9a, and the fin 4b at the leftmost end of the part 2b is half pitch from the left side 9b. Since they are arranged at positions, they are arranged in the left-right direction at a constant pitch as a whole. As a result, the fins 4a and 4b are uniformly distributed on the upper surface side of the main bodies 3a and 3b, and radiate the heat of the main bodies 3a and 3b evenly.
　溝５ａと５ｂの内壁は、部分品２ａと２ｂが左右方向に連結することにより、互いにつながっている。これにより、溝５ａと５ｂは、断面視円形状の冷媒配管用空洞８０を形成している。その冷媒配管用空洞８０には、冷媒配管用空洞８０に嵌合する円筒の形状を有する冷媒配管８が通されている。冷媒配管用空洞８０には、冷媒配管８が嵌合している。これにより、ヒートシンク１では、溝５ａと５ｂの内壁と冷媒配管８との熱抵抗が小さい。 The inner walls of the grooves 5a and 5b are connected to each other by connecting the partial products 2a and 2b in the left-right direction. Thus, the grooves 5a and 5b form a refrigerant piping cavity 80 having a circular shape in cross section. A refrigerant pipe 8 having a cylindrical shape that fits into the refrigerant pipe cavity 80 is passed through the refrigerant pipe cavity 80. The refrigerant pipe 8 is fitted in the refrigerant pipe cavity 80. Thereby, in the heat sink 1, the thermal resistance between the inner walls of the grooves 5a and 5b and the refrigerant pipe 8 is small.
　次に、ヒートシンク１の作用について説明する。ヒートシンク１では、フィン４ａ、４ｂがある本体３ａ、３ｂの上面側と反対側の、下面に、図示しない、冷却対象となる被冷却部品が取り付けられる。以下の説明では、本体３ａ、３ｂの下面に被冷却部品が取り付けられることから、下面のことを冷却面３０と称するものとする。なお、図示しないが、被冷却部品は、冷却面３０に接触可能な平面部を有し、その平面部が冷却面３０と接触する。 Next, the operation of the heat sink 1 will be described. In the heat sink 1, a component to be cooled, which is not shown, is attached to the lower surface on the side opposite to the upper surface side of the main bodies 3a and 3b having the fins 4a and 4b. In the following description, since the component to be cooled is attached to the lower surfaces of the main bodies 3a and 3b, the lower surface is referred to as a cooling surface 30. Although not shown, the component to be cooled has a flat portion that can contact the cooling surface 30, and the flat portion contacts the cooling surface 30.
　被冷却部品の熱は、冷却面３０から本体３ａ、３ｂの内部に伝わる。本体３ａ、３ｂは、押し出し成型によって一体に形成されている。このため、本体３ａ、３ｂは、特許文献１に記載のヒートシンクと異なり、その内部に２つの部材が接合することにより形成された接合面が存在しない。また、本体３ａ、３ｂは、押し出し成型によってフィン４ａ、４ｂと一体に形成されている。その結果、本体３ａ、３ｂの内部に伝わった熱は、部品を接合する接合箇所による影響を受けることなく、フィン４ａ、４ｂに伝えられる。換言すると、熱は、接触熱抵抗の影響を受けることなく、フィン４ａ、４ｂに伝えられる。このように、本体３ａ、３ｂ及びフィン４ａ、４ｂは、高い熱伝導効率で熱を伝える。 The heat of the component to be cooled is transmitted from the cooling surface 30 to the inside of the main bodies 3a and 3b. The main bodies 3a and 3b are integrally formed by extrusion molding. For this reason, unlike the heat sink described in Patent Document 1, the main bodies 3a and 3b do not have a joint surface formed by joining two members inside. The main bodies 3a and 3b are integrally formed with the fins 4a and 4b by extrusion molding. As a result, the heat transmitted to the inside of the main bodies 3a and 3b is transmitted to the fins 4a and 4b without being affected by the joining location where the parts are joined. In other words, heat is transferred to the fins 4a and 4b without being affected by the contact thermal resistance. Thus, the main bodies 3a and 3b and the fins 4a and 4b conduct heat with high heat conduction efficiency.
　フィン４ａ、４ｂに伝えられた熱は、フィン４ａ、４ｂに送風されると、フィン４ａ、４ｂに当たる空気に放熱される。このとき、フィン４ａ、４ｂは、上述したように、本体３ａ、３ｂの上面側全体に均一に配置されている。そして、特許文献２に記載のヒートシンクと異なり、本体３ａ、３ｂの上面側に、フィン４ａ、４ｂが不均一に分布する箇所が存在しない。このため、フィン４ａ、４ｂの間を通過する風量は、全体として均一である。その結果、熱は、フィン４ａ、４ｂ全体から均一に放熱される。 When the heat transmitted to the fins 4a and 4b is blown to the fins 4a and 4b, the heat is radiated to the air hitting the fins 4a and 4b. At this time, as described above, the fins 4a and 4b are uniformly arranged on the entire upper surface side of the main bodies 3a and 3b. And unlike the heat sink of patent document 2, the location where the fins 4a and 4b are unevenly distributed does not exist in the upper surface side of the main bodies 3a and 3b. For this reason, the air volume which passes between the fins 4a and 4b is uniform as a whole. As a result, heat is dissipated uniformly from the entire fins 4a and 4b.
　一方、冷却面３０から本体３ａ、３ｂの内部に伝わった熱は、冷却面３０から溝５ａ、５ｂの内壁にも伝わる。溝５ａ、５ｂの内壁には、上述したように、冷媒配管８が嵌合している。これにより、溝５ａ、５ｂの内壁の全周にわたって冷媒配管８が接触している。その結果、溝５ａ、５ｂの内壁と冷媒配管８との接触熱抵抗が小さい。本体３ａ、３ｂの内部に伝わった熱は、溝５ａ、５ｂの内壁を介して冷媒配管８に高い熱伝導率で伝えられる。これにより、その熱は、冷媒配管８の内部を流通する冷媒と高い効率で、熱交換される。 On the other hand, the heat transferred from the cooling surface 30 to the inside of the main bodies 3a and 3b is also transferred from the cooling surface 30 to the inner walls of the grooves 5a and 5b. As described above, the refrigerant pipe 8 is fitted to the inner walls of the grooves 5a and 5b. Thereby, the refrigerant | coolant piping 8 is contacting over the perimeter of the inner wall of groove | channel 5a, 5b. As a result, the contact thermal resistance between the inner walls of the grooves 5a and 5b and the refrigerant pipe 8 is small. The heat transferred to the inside of the main bodies 3a and 3b is transferred to the refrigerant pipe 8 with high thermal conductivity through the inner walls of the grooves 5a and 5b. Thereby, the heat is exchanged with the refrigerant circulating in the refrigerant pipe 8 with high efficiency.
　このように、ヒートシンク１は、被冷却部品の熱を高い熱伝導性でフィン４ａ、４ｂ又は冷媒配管８に伝える。このため、ヒートシンク１は、被冷却部品の温度上昇を抑制しやすい。また、冷却能力が高い。さらに、ヒートシンク１は、フィン４ａ、４ｂ全体から均一に放熱する。このため、冷却ムラが発生しにくい。 Thus, the heat sink 1 transmits the heat of the component to be cooled to the fins 4a, 4b or the refrigerant pipe 8 with high thermal conductivity. For this reason, the heat sink 1 is easy to suppress the temperature rise of the component to be cooled. In addition, the cooling capacity is high. Furthermore, the heat sink 1 radiates heat uniformly from the entire fins 4a and 4b. For this reason, uneven cooling is unlikely to occur.
　以上のように、実施の形態１に係るヒートシンク１では、本体３ａが右側面９ａを有し、本体３ｂが右側面９ａと隣接する左側面９ｂを有する。このため、右側面９ａと左側面９ｂを接合する接合面は、上下方向に延伸する。ヒートシンク１では、フィン４ａ、４ｂが設けられた、本体３ａ、３ｂの上面側から冷却面３０である下面側との間に、すなわち、熱の伝達経路に、部品間の接合部が存在しない。このため、冷却面３０からフィン４ａ、４ｂへ熱伝導が阻害されにくい。その結果、ヒートシンク１の冷却能力が高い。 As described above, in the heat sink 1 according to Embodiment 1, the main body 3a has the right side surface 9a, and the main body 3b has the left side surface 9b adjacent to the right side surface 9a. For this reason, the joint surface joining the right side surface 9a and the left side surface 9b extends in the vertical direction. In the heat sink 1, there are no joints between components between the upper surface side of the main bodies 3 a and 3 b provided with the fins 4 a and 4 b and the lower surface side that is the cooling surface 30, that is, in the heat transfer path. For this reason, heat conduction from the cooling surface 30 to the fins 4a and 4b is hardly hindered. As a result, the cooling capacity of the heat sink 1 is high.
　また、右側面９ａには、溝５ａが設けられ、左側面９ｂには、溝５ａと対向する溝５ｂが設けられている。そして、溝５ａと溝５ｂの間には、冷媒配管８が配置されている。このため、ヒートシンク１では、本体３ａ、３ｂの下面又は上面の側に、冷媒配管８を配置するためのスペースを設ける必要がない。その結果、ヒートシンク１では、本体３ａ、３ｂの上面に均一にフィン４ａ、４ｂを配列することができる。これにより、ヒートシンク１では、フィン４ａ、４ｂで均一に放熱することができ、冷却ムラが発生しにくい。 Further, a groove 5a is provided on the right side surface 9a, and a groove 5b facing the groove 5a is provided on the left side surface 9b. And the refrigerant | coolant piping 8 is arrange | positioned between the groove | channel 5a and the groove | channel 5b. For this reason, in the heat sink 1, it is not necessary to provide the space for arrange | positioning the refrigerant | coolant piping 8 in the lower surface or upper surface side of main body 3a, 3b. As a result, in the heat sink 1, the fins 4a and 4b can be uniformly arranged on the upper surfaces of the main bodies 3a and 3b. Thereby, in the heat sink 1, heat can be uniformly radiated by the fins 4a and 4b, and uneven cooling is less likely to occur.
変形例
　なお、実施の形態１では、ヒートシンク１が２つの部分品２ａ、２ｂで形成されているが、ヒートシンク１ａは、３つ以上の部分品で形成されていてもよい。 Modification In the first embodiment, the heat sink 1 is formed of two partial products 2a and 2b, but the heat sink 1a may be formed of three or more partial products.
　図４は、実施の形態１に係るヒートシンク１の変形例の部品構成図である。図５は、その変形例の断面図である。なお、図４では、理解を容易にするため、冷媒配管８を省略している。 FIG. 4 is a component configuration diagram of a modified example of the heat sink 1 according to the first embodiment. FIG. 5 is a cross-sectional view of the modification. In FIG. 4, the refrigerant pipe 8 is omitted for easy understanding.
　ヒートシンク１ａは、図４及び図５に示すように、部分品２ａ、２ｂ、２ｃを備えている。部分品２ａ、２ｂは、実施の形態１で説明した部分品２ａ、２ｂと同じ構成を備える。それら部分品２ａと２ｂの間には、部分品２ｃが配置されている。 The heat sink 1a includes partial parts 2a, 2b, and 2c as shown in FIGS. The partial products 2a and 2b have the same configuration as the partial products 2a and 2b described in the first embodiment. A partial product 2c is arranged between the partial products 2a and 2b.
　部分品２ｃは、図４に示すように、本体３ｃと、複数のフィン４ｃと、を有している。そして、本体３ｃの左側面９ｃには、図４に示すように、部分品２ｂが有する連結用凸部６ｂ、連結用凹部７ｂと同じ構成の連結用凸部６ｃ、連結用凹部７ｃが設けられている。また、部分品２ｂが有する溝５ｂと同じ構成の溝５ｃが設けられている。 As shown in FIG. 4, the partial product 2c has a main body 3c and a plurality of fins 4c. As shown in FIG. 4, the left side surface 9c of the main body 3c is provided with a connecting convex portion 6b and a connecting concave portion 7c having the same configuration as the connecting convex portion 6b and the connecting concave portion 7b. ing. Moreover, the groove | channel 5c of the same structure as the groove | channel 5b which the partial goods 2b have is provided.
　連結用凸部６ｃは、図５に示すように、部分品２ａが有する連結用凹部６ａに圧入され、連結用凹部６ａと嵌合している。また、連結用凹部７ｃには、部分品２ａが有する連結用凸部７ａが圧入され、連結用凹部７ｃに連結用凸部７ａが嵌合している。これにより、部分品２ｃの左側面９ｃが、部分品２ａの右側面９ａに合わせられ、部分品２ｃが、部分品２ａと連結している。さらに、部分品２ｃの溝５ｃは、部分品２ａの溝５ａと対向して、冷媒配管用空洞８０を形成している。冷媒配管用空洞８０には冷媒配管８が通されている。 As shown in FIG. 5, the connecting convex portion 6c is press-fitted into the connecting concave portion 6a of the partial product 2a and is fitted to the connecting concave portion 6a. Further, the connecting convex portion 7a of the partial product 2a is press-fitted into the connecting concave portion 7c, and the connecting convex portion 7a is fitted into the connecting concave portion 7c. Thereby, the left side surface 9c of the partial product 2c is matched with the right side surface 9a of the partial product 2a, and the partial product 2c is connected with the partial product 2a. Furthermore, the groove 5c of the partial product 2c is opposed to the groove 5a of the partial product 2a to form a refrigerant piping cavity 80. The refrigerant pipe 8 is passed through the refrigerant pipe cavity 80.
　これに対して、部分品２ｃの右側面９ｄには、図４に示すように、部分品２ａが有する連結用凹部６ａ、連結用凸部７ａと同じ構成の連結用凹部６ｄ、連結用凸部７ｄが設けられている。また、部分品２ａが有する溝５ａと同じ構成の溝５ｄが設けられている。 On the other hand, on the right side surface 9d of the partial product 2c, as shown in FIG. 4, the connection concave portion 6a of the partial product 2a, the connection concave portion 6d having the same configuration as the connection convex portion 7a, and the connection convex portion are provided. 7d is provided. Moreover, the groove | channel 5d of the same structure as the groove | channel 5a which the partial goods 2a have is provided.
　連結用凹部６ｄには、図５に示すように、部分品２ｂが有する連結用凸部６ｂが圧入され、連結用凹部６ｄに連結用凸部６ｂが嵌合している。連結用凸部７ｄは、部分品２ｂが有する連結用凹部７ｂに圧入され、連結用凸部７ｄが連結用凹部７ｂに嵌合している。これにより、部分品２ｃの右側面９ｄが、部分品２ｂの左側面９ｂに合わせられ、部分品２ｃが部分品２ｂと連結している。さらに、溝５ｄは、部分品２ｂの溝５ｂと対向することにより、冷媒配管８が通された冷媒配管用空洞８０を形成している。 As shown in FIG. 5, the connecting convex portion 6b of the partial product 2b is press-fitted into the connecting concave portion 6d, and the connecting convex portion 6b is fitted into the connecting concave portion 6d. The connecting convex portion 7d is press-fitted into the connecting concave portion 7b of the partial product 2b, and the connecting convex portion 7d is fitted into the connecting concave portion 7b. Accordingly, the right side surface 9d of the partial product 2c is aligned with the left side surface 9b of the partial product 2b, and the partial product 2c is connected to the partial product 2b. Further, the groove 5d is opposed to the groove 5b of the partial product 2b, thereby forming a refrigerant pipe cavity 80 through which the refrigerant pipe 8 is passed.
　以上のように、ヒートシンク１は、３つの部分品２ａ、２ｂ、２ｃが連結することにより形成されてもよい。 As described above, the heat sink 1 may be formed by connecting the three partial products 2a, 2b, and 2c.
　なお、冷媒配管８は、Ｕ字型に曲げられた一本の管であってもよい。その場合、冷媒配管８は、溝５ｃと溝５ａで形成された冷媒配管用空洞８０と、溝５ｄと溝５ｂで形成された冷媒配管用空洞８０とに通されるとよい。また、部分品２ａの右側面９ａ、部分品２ｃの左側面９ｃ、右側面９ｄ、部分品２ｂの左側面９ｂには、熱抵抗を小さくするため、熱伝導グリースを塗布するとよい。 The refrigerant pipe 8 may be a single pipe bent into a U shape. In that case, the refrigerant pipe 8 is preferably passed through the refrigerant pipe cavity 80 formed by the grooves 5c and 5a and the refrigerant pipe cavity 80 formed by the grooves 5d and 5b. Further, heat conduction grease may be applied to the right side surface 9a of the partial product 2a, the left side surface 9c, the right side surface 9d of the partial product 2c, and the left side surface 9b of the partial product 2b in order to reduce thermal resistance.
実施の形態２
　図４及び図５に示す、実施の形態１に係る変形例では、ヒートシンク１ａが、本体３ｃの左側面９ｃと右側面９ｄそれぞれに、連結用凸部６ｃ、７ｄと連結用凹部７ｃ、６ｄが設けられた部分品２ｃを備えている。実施の形態２に係るヒートシンク１ｂでは、この部分品２ｃと同じ構成の部分品２ｄを複数個組み合わせることにより、製造されている。以下、実施の形態２に係るヒートシンク１ｂの構成を、図６を用いて説明する。 Embodiment 2
In the modification according to the first embodiment shown in FIG. 4 and FIG. 5, the heat sink 1a has connecting convex portions 6c, 7d and connecting concave portions 7c, 6d on the left side surface 9c and the right side surface 9d of the main body 3c. The provided partial product 2c is provided. The heat sink 1b according to the second embodiment is manufactured by combining a plurality of partial products 2d having the same configuration as the partial product 2c. Hereinafter, the configuration of the heat sink 1b according to the second embodiment will be described with reference to FIG.
　図６は、実施の形態２に係るヒートシンク１ｂの断面図である。
　図６に示すように、ヒートシンク１ｂは、同一形状の部分品２ｄを複数個備えている。 FIG. 6 is a cross-sectional view of the heat sink 1b according to the second embodiment.
As shown in FIG. 6, the heat sink 1b includes a plurality of pieces 2d having the same shape.
　部分品２ｄそれぞれは、上述した部分品２ｃと同じ構成を備えている。すなわち、部分品２ｄそれぞれは、部分品２ｃの本体３ｃと同じ構成の本体と、部分品２ｃのフィン４ｃと同じ構成の複数のフィンと、を有している。そして、部分品２ｃの本体の左側面９ｅには、部分品２ｃの溝５ｃ、連結用凸部６ｃ、連結用凹部７ｃと同じ構成の溝５ｅ、連結用凸部６ｅ、連結用凹部７ｅが設けられている。また、部分品２ｃの本体の右側面９ｆには、部分品２ｃの溝５ｄ、連結用凹部６ｄ、連結用凸部７ｄと同じ構成の溝５ｆ、連結用凹部６ｆ、連結用凸部７ｆが設けられている。 Each partial product 2d has the same configuration as the partial product 2c described above. That is, each of the partial products 2d has a main body having the same configuration as the main body 3c of the partial product 2c and a plurality of fins having the same configuration as the fins 4c of the partial product 2c. The left side surface 9e of the main body of the partial product 2c is provided with a groove 5c, a connecting convex portion 6c, a connecting convex portion 6e, and a connecting concave portion 7e having the same structure as the connecting concave portion 7c. It has been. Further, the right side surface 9f of the main body of the partial product 2c is provided with the groove 5d, the concave portion 6d for connection, the groove 5f having the same configuration as the convex portion 7d for connection, the concave portion 6f for connection, and the convex portion 7f for connection. It has been.
　複数個の部分品２ｄのうち、１つの部分品２ｄの左側面９ｅには、別の部分品２ｄの右側面９ｆが合わせられている。さらに、左側面９ｅの連結用凸部６ｅが、右側面９ｆの連結用凹部６ｆに圧入されて嵌合している。左側面９ｅの連結用凹部７ｅには、右側面９ｆの連結用凸部７ｆが圧入されて嵌合している。これにより、複数個の部分品２ｄのうちの、１つの部分品２ｄが別の部分品２ｄと隣接し、その別の部分品２ｄに連結している。なお、１つの部分品２ｄは、別の部分品２ｄと左右方向に隣接しているが、本明細書では、この方向のことを隣接方向という。 Among the plurality of partial products 2d, the left side surface 9e of one partial product 2d is aligned with the right side surface 9f of another partial product 2d. Further, the connecting convex portion 6e on the left side surface 9e is press-fitted and fitted into the connecting concave portion 6f on the right side surface 9f. The connecting convex portion 7f on the right side surface 9f is press-fitted into the connecting concave portion 7e on the left side surface 9e. Thus, one partial product 2d of the plurality of partial products 2d is adjacent to another partial product 2d and connected to the other partial product 2d. In addition, although one partial product 2d is adjacent to another partial product 2d in the left-right direction, this direction is referred to as an adjacent direction in this specification.
　また、１つの部分品２ｄの左側面９ｅにある溝５ｅが、別の部分品２ｄの右側面９ｆにある溝５ｆと対向して、冷媒配管用空間８０を形成している。その冷媒配管用空間８０には冷媒配管８が通されている。 Further, the groove 5e on the left side surface 9e of one partial product 2d is opposed to the groove 5f on the right side surface 9f of another partial product 2d to form a refrigerant piping space 80. The refrigerant pipe 8 is passed through the refrigerant pipe space 80.
　このような１つの部分品２ｄと別の部分品２ｄの配置が繰り返されることにより、複数個の部分品２ｄが連結している。その結果、ヒートシンク１ｂが形成されている。 The arrangement of one partial product 2d and another partial product 2d is repeated, so that a plurality of partial products 2d are connected. As a result, the heat sink 1b is formed.
　以上のように、実施の形態２に係るヒートシンク１ｂは、同一構成の部分品２ｄが複数個連結されれることにより、形成されている。同一構成の部分品２ｄを複数個製造することにより、ヒートシンク１ｂを製造できるので、ヒートシンク１ｂの製造が容易である。また、製造コストが低い。例えば、部分品２ｄを押し出し成型で製造する場合、金型を１種類だけ作製すればよいので、金型の製造費用及び管理費を小さくして製造コストを小さくすることができる。 As described above, the heat sink 1b according to the second embodiment is formed by connecting a plurality of pieces 2d having the same configuration. Since the heat sink 1b can be manufactured by manufacturing a plurality of parts 2d having the same configuration, it is easy to manufacture the heat sink 1b. Moreover, the manufacturing cost is low. For example, when the partial product 2d is manufactured by extrusion molding, since only one type of mold needs to be manufactured, the manufacturing cost and the management cost of the mold can be reduced and the manufacturing cost can be reduced.
　また、連結する部分品２ｄの個数を増減することにより、被冷却部品の大きさに合ったヒートシンク１ｂを製造できるので、被冷却部品の大きさが変化してもヒートシンク１ｂの製造コストが上がりにくい。 Further, since the heat sink 1b can be manufactured in accordance with the size of the component to be cooled by increasing or decreasing the number of the partial parts 2d to be connected, the manufacturing cost of the heat sink 1b is hardly increased even if the size of the component to be cooled is changed. .
実施の形態３
　実施の形態２に係るヒートシンク１ｂでは、冷媒配管用空間８０全てに冷媒配管８が通されているが、本発明はこれに限定されない。実施の形態３に係るヒートシンク１ｃでは、被冷却部品の位置、発熱量に応じて、複数の冷媒配管用空間８０のうちの、一部の冷媒配管用空間８０に冷媒配管８が通されている。以下、実施の形態３に係るヒートシンク１ｃの構成を図７を用いて説明する。 Embodiment 3
In the heat sink 1b according to Embodiment 2, the refrigerant pipe 8 is passed through all the refrigerant pipe spaces 80, but the present invention is not limited to this. In the heat sink 1c according to the third embodiment, the refrigerant pipe 8 is passed through some of the refrigerant pipe spaces 80 among the plurality of refrigerant pipe spaces 80 in accordance with the position of the component to be cooled and the amount of heat generated. . Hereinafter, the structure of the heat sink 1c according to Embodiment 3 will be described with reference to FIG.
　図７は、実施の形態３に係るヒートシンク１ｃの断面図である。なお、図７では、図６と同じ箇所の符号は省略している。 FIG. 7 is a cross-sectional view of the heat sink 1c according to the third embodiment. In FIG. 7, the same reference numerals as those in FIG. 6 are omitted.
　図７に示すように、ヒートシンク１ｃは、実施の形態２で説明した部分品２ｄを複数個、備えている。そして、複数個の部分品２ｄは、実施の形態１の変形例で説明した方法で、連結している。これにより、隣接する部分品２ｄどうしの間に冷媒配管用空間８０が形成されている。その結果、ヒートシンク１ｃは、複数の冷媒配管用空間８０を有している。 As shown in FIG. 7, the heat sink 1c includes a plurality of partial products 2d described in the second embodiment. The plurality of partial products 2d are connected by the method described in the modification of the first embodiment. Thereby, the space 80 for refrigerant | coolant piping is formed between the adjacent partial products 2d. As a result, the heat sink 1c has a plurality of refrigerant piping spaces 80.
　ヒートシンク１ｃの下面には、被冷却部品である発熱部材４０、４１が取り付けられている。ここで、発熱部材４０は、発熱部材４１よりも発熱量が大きい。このため、発熱部材４０は、発熱部材４１よりも冷却する必要がある。そこで、ヒートシンク１ｃでは、発熱部材４０をより冷却するため、発熱部材４０の近傍にある冷媒配管用空間８０にだけ冷媒配管８が通されている。すなわち、発熱部材４０の上に位置する冷媒配管用空間８０にだけ冷媒配管８が通されている。一方、発熱部材４１の上に位置する冷媒配管用空間８０には、冷媒配管８が通されていない。これにより、ヒートシンク１ｃでは、発熱量の大きい発熱部材４０を高い効率で冷却することができる。さらに、発熱量の小さい発熱部材４１が過冷却されにくい。その結果、発熱部材４１は、結露しにくい。 Heat generating members 40 and 41, which are parts to be cooled, are attached to the lower surface of the heat sink 1c. Here, the heat generating member 40 generates a larger amount of heat than the heat generating member 41. For this reason, the heat generating member 40 needs to be cooled more than the heat generating member 41. Therefore, in the heat sink 1c, the refrigerant pipe 8 is passed only through the refrigerant pipe space 80 in the vicinity of the heat generating member 40 in order to further cool the heat generating member 40. That is, the refrigerant pipe 8 is passed only through the refrigerant pipe space 80 located on the heat generating member 40. On the other hand, the refrigerant pipe 8 is not passed through the refrigerant pipe space 80 located above the heat generating member 41. Thereby, in the heat sink 1c, the heat generating member 40 with a large calorific value can be cooled with high efficiency. Furthermore, the heat generating member 41 having a small heat generation amount is not easily overcooled. As a result, the heat generating member 41 is difficult to condense.
　以上のように、実施の形態３に係るヒートシンク１ｃでは、被冷却部品の発熱の分布に応じて、複数個の冷媒配管用空間８０のうちの一部に冷媒配管８が通されている。このため、ヒートシンク１ｃは、冷却効率が高い。 As described above, in the heat sink 1c according to the third embodiment, the refrigerant pipe 8 is passed through a part of the plurality of refrigerant pipe spaces 80 according to the distribution of heat generation of the parts to be cooled. For this reason, the heat sink 1c has high cooling efficiency.
実施の形態４
　実施の形態１で説明したヒートシンク１は、空調和装置の室外機２１に用いられてもよい。実施の形態４に係る空気調和装置の室外機２１には、ヒートシンク１が用いられている。以下、実施の形態４に係る空気調和装置の室外機２１の構成を図８－図１０を用いて説明する。 Embodiment 4
The heat sink 1 described in the first embodiment may be used for the outdoor unit 21 of the air conditioner. The heat sink 1 is used for the outdoor unit 21 of the air-conditioning apparatus according to Embodiment 4. Hereinafter, the configuration of the outdoor unit 21 of the air-conditioning apparatus according to Embodiment 4 will be described with reference to FIGS.
　図８は、実施の形態４に係る空気調和装置の室外機の斜視図である。図９は、室外機が備える電気品箱１２の斜視図である。図１０は、電気品箱１２の断面図である。 FIG. 8 is a perspective view of the outdoor unit of the air-conditioning apparatus according to Embodiment 4. FIG. 9 is a perspective view of the electrical component box 12 included in the outdoor unit. FIG. 10 is a cross-sectional view of the electrical component box 12.
　空気調和装置は、図示しない室内機と、図８に示す室外機２１と、を備える。ここで、図示しないが、室外機２１は、室内機と接続用配管で接続され、その接続用配管によって室外機２１と室内機との間に冷媒が流通する。また、室外機２１は、接続用配管内に配線された電線によって室内機と接続され、室内機から電力が供給されている。 The air conditioner includes an indoor unit (not shown) and an outdoor unit 21 shown in FIG. Here, although not illustrated, the outdoor unit 21 is connected to the indoor unit through a connection pipe, and the refrigerant circulates between the outdoor unit 21 and the indoor unit through the connection pipe. The outdoor unit 21 is connected to the indoor unit by an electric wire wired in the connection pipe, and power is supplied from the indoor unit.
　室外機２１は、図８に示すように、上から、送風部１８、熱交換部１９、機械部２０の順序で配置された３つの部分によって構成されている。送風部１８は、室外機２１が有する筐体２２の上に配置され、熱交換部１９と機械部２０は、筐体２２の内部に収容されている。 As shown in FIG. 8, the outdoor unit 21 is composed of three parts arranged in the order of the air blowing unit 18, the heat exchange unit 19, and the machine unit 20 from the top. The air blowing unit 18 is disposed on the housing 22 of the outdoor unit 21, and the heat exchange unit 19 and the machine unit 20 are accommodated inside the housing 22.
　送風部１８は、筐体２２の天板に形成された、図示しない開口の上に配置されている。送風部１８の内部には、筐体２２内の空気を吸気するファン１０が設けられている。一方、室外機２１の筐体側面の下部には吸気口１３が設けられている。このため、送風部１８は、ファン１０が回転して筐体２２内の空気を吸気することにより、吸気口１３から空気を筐体２２内に取り込み、取り込んだ空気を筐体２２の、図示しない開口から排気する。 The air blower 18 is disposed on an opening (not shown) formed on the top plate of the housing 22. A fan 10 that sucks air in the housing 22 is provided inside the blower 18. On the other hand, an air inlet 13 is provided at the lower part of the side surface of the casing of the outdoor unit 21. For this reason, the air blower 18 takes in air from the air inlet 13 into the housing 22 by rotating the fan 10 and sucks in the air in the housing 22, and the air that has been taken in is not shown in the housing 22. Exhaust through the opening.
　一方、熱交換部１９は、図示しない、冷媒が流通する冷媒配管と図示しない複数の薄い金属板を有する熱交換器１１を備える。 On the other hand, the heat exchange unit 19 includes a heat exchanger 11 (not shown) having a refrigerant pipe through which a refrigerant flows and a plurality of thin metal plates (not shown).
　熱交換器１１は、室外機２１が有する筐体２２の側壁の内側に配置されている。このため、熱交換器１１は、ファン１０が回転して空気が送風されることにより、送風された空気があたり、その空気と冷媒配管内の冷媒が熱交換する。ここで、冷媒は、冷凍サイクルを形成する図示しない室内機と室外機２１間の熱を輸送する。また、空気調和装置は、複数の運転モードで動作するため、冷媒配管内の冷媒の温度と室外機２１の周囲環境温度の関係は、その運転モードに応じて変化する。詳細には、室内を暖めるために、主に冬に使用される暖房モードでは、冷媒の温度が室外機２１の周囲の空気より冷たく、室内を冷やすために、主に夏に使用される冷房モードでは、冷媒の温度が室外機２１の周囲の空気より暖かい。このため、熱交換器１１は、ファン１０が回転することで生じる風があたると、暖房モードで吸熱し、冷房モードで放熱する。これにより、熱交換器１１は、図示しない室内機と冷媒を通じて熱の授受を行う。 The heat exchanger 11 is disposed inside the side wall of the housing 22 of the outdoor unit 21. For this reason, in the heat exchanger 11, when the fan 10 rotates and air is blown, the blown air hits, and the air and the refrigerant in the refrigerant pipe exchange heat. Here, the refrigerant transports heat between an indoor unit (not shown) that forms the refrigeration cycle and the outdoor unit 21. Further, since the air conditioner operates in a plurality of operation modes, the relationship between the temperature of the refrigerant in the refrigerant pipe and the ambient environment temperature of the outdoor unit 21 varies depending on the operation mode. Specifically, in the heating mode mainly used in winter in order to warm the room, the temperature of the refrigerant is cooler than the air around the outdoor unit 21, and the cooling mode mainly used in summer in order to cool the room. Then, the temperature of the refrigerant is warmer than the air around the outdoor unit 21. For this reason, the heat exchanger 11 absorbs heat in the heating mode and dissipates heat in the cooling mode when wind generated by the rotation of the fan 10 is applied. Thus, the heat exchanger 11 exchanges heat through an indoor unit (not shown) and the refrigerant.
　機械部２０は、図示しない圧縮機、アキュムレータ等を備える。そして、圧縮機は、インバータ回路１７を有する電子部品１４によって駆動される。電子部品１４は、半導体部品によって構成されているので、多くの場合発熱量が大きく、故障なく安全に使用するためには何らかの放熱または冷却措置が必要である。そこで、機械部２０は、電子部品１４を収容すると共に、実施の形態１で説明したヒートシンク１が設けられた電気品箱１２を備える。 The machine unit 20 includes a compressor, an accumulator, and the like (not shown). The compressor is driven by an electronic component 14 having an inverter circuit 17. Since the electronic component 14 is composed of a semiconductor component, it often generates a large amount of heat, and some heat dissipation or cooling measures are required to use it safely without failure. Therefore, the mechanical unit 20 includes the electronic component 14 and the electrical component box 12 provided with the heat sink 1 described in the first embodiment.
　詳細には、機械部２０は、図９及び図１０に示すように、直方体状に形成された電気品箱１２を備える。そして、電気品箱１２の一つの面には、図示しない開口部が形成されている。電気品箱１２の、開口部が形成された面には、ヒートシンク１が配置されている。 Specifically, as shown in FIGS. 9 and 10, the mechanical unit 20 includes an electrical component box 12 formed in a rectangular parallelepiped shape. An opening (not shown) is formed on one surface of the electrical component box 12. The heat sink 1 is disposed on the surface of the electrical component box 12 where the opening is formed.
　ヒートシンク１は、電気品箱１２にネジ、ボルトなどの締結部材で固定されている。ヒートシンク１は、開口部を介して電気品箱１２内の被冷却部品である電子部品１４と接触している。 The heat sink 1 is fixed to the electrical component box 12 with fastening members such as screws and bolts. The heat sink 1 is in contact with an electronic component 14 that is a component to be cooled in the electrical component box 12 through the opening.
　ヒートシンク１は、図示しないが、実施の形態１で説明したように、冷媒配管８を備えている。実施の形態４では、その冷媒配管８に、熱交換器１１の冷媒配管を流通すると共に、室外機２１と図示しない室内機を循環する冷媒の一部が分流する。通常、冷媒の温度は、被冷却部品である電子部品１４の温度より低い。一方、上述したように、ヒートシンク１が電子部品１４と接触しているので、電子部品１４の熱は、ヒートシンク１が備える本体３ａ、３ｂに伝えられ、さらに、冷媒配管８に伝えられる。冷媒配管８に分流された冷媒が循環すると、冷媒配管８に伝わった熱は、冷媒配管８から冷媒に伝導する。これにより、電子部品１４の熱が冷媒に放熱させる。その結果、電子部品１４が冷却される。 Although not shown, the heat sink 1 includes the refrigerant pipe 8 as described in the first embodiment. In the fourth embodiment, the refrigerant pipe 8 circulates through the refrigerant pipe of the heat exchanger 11 and a part of the refrigerant circulating in the outdoor unit 21 and an indoor unit (not shown) is diverted. Usually, the temperature of the refrigerant is lower than the temperature of the electronic component 14 that is the component to be cooled. On the other hand, as described above, since the heat sink 1 is in contact with the electronic component 14, the heat of the electronic component 14 is transmitted to the main bodies 3 a and 3 b included in the heat sink 1 and further transmitted to the refrigerant pipe 8. When the refrigerant divided into the refrigerant pipe 8 circulates, the heat transferred to the refrigerant pipe 8 is conducted from the refrigerant pipe 8 to the refrigerant. Thereby, the heat of the electronic component 14 is radiated to the refrigerant. As a result, the electronic component 14 is cooled.
　なお、電気品箱１２は熱交換器１１より下方にあり、送風部１８から離れているため、そのままではヒートシンク１に充分に風が流れない。そこで、電気品箱１２には、ヒートシンク１に風を供給するため、内部にヒートシンク１を収容するダクト１５が設けられている。 In addition, since the electrical component box 12 is located below the heat exchanger 11 and is away from the air blower 18, the wind does not sufficiently flow through the heat sink 1 as it is. Therefore, in order to supply wind to the heat sink 1, the electrical component box 12 is provided with a duct 15 that accommodates the heat sink 1 therein.
　以上のように、実施の形態４に係る空気調和装置の室外機２１は、圧縮機を駆動する電子部品１４を冷却する、実施の形態１に係るヒートシンク１を備えているので、電子部品１４が過熱しにくく、故障しにくい。その結果、室外機２１は、安定して動作することができる。 As described above, the outdoor unit 21 of the air-conditioning apparatus according to Embodiment 4 includes the heat sink 1 according to Embodiment 1 that cools the electronic component 14 that drives the compressor. Hard to overheat and hard to break down. As a result, the outdoor unit 21 can operate stably.
　なお、実施の形態４では、空気調和装置の室外機２１に、実施の形態１に係るヒートシンク１を適用しているが、室外機２１には、実施の形態１の変形例に係るヒートシンク１ａ及び実施の形態２－３に係るヒートシンク１ｂ、１ｃも適用してもよい。 In the fourth embodiment, the heat sink 1 according to the first embodiment is applied to the outdoor unit 21 of the air conditioner. However, the outdoor unit 21 includes the heat sink 1a according to the modification of the first embodiment and The heat sinks 1b and 1c according to Embodiment 2-3 may also be applied.
　以上、本発明の実施の形態を説明したが、本発明は上記の実施の形態に限定されるものではない。例えば、実施の形態1－４では、フィン４ａ－４ｃが本体３ａ－３ｃと一体形成されている。しかし本発明はこれに限定されない。 As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment. For example, in Embodiment 1-4, the fins 4a-4c are integrally formed with the main bodies 3a-3c. However, the present invention is not limited to this.
　図１１は、実施の形態１に係るヒートシンク１の別の変形例の断面図である。
　図１１に示すように、部分品２ｅは、本体３ａと、本体３ａと別体に形成された複数のフィン４ｄと、を備えている。本体３ａは、上面側に左右方向に等ピッチに配置され、中央に断面視矩形状の窪みが形成された複数の突出壁３１を有する。フィン４ｄそれぞれの下端は、突出壁３１の窪みに嵌め込まれている。これにより、複数のフィン４ｄは、本体３ａと熱的に結合している。 FIG. 11 is a cross-sectional view of another modification of the heat sink 1 according to the first embodiment.
As shown in FIG. 11, the partial product 2e includes a main body 3a and a plurality of fins 4d formed separately from the main body 3a. The main body 3a has a plurality of projecting walls 31 that are arranged on the upper surface side at equal pitches in the left-right direction and in which a depression having a rectangular shape in cross section is formed at the center. The lower ends of the fins 4d are fitted in the recesses of the protruding wall 31. Thus, the plurality of fins 4d are thermally coupled to the main body 3a.
　このように、フィン４ａ－４ｃは、本体３ａ－３ｃと別体に形成されてもよい。この場合、フィン４ａ－４ｃは、本体３ａ－３ｃと熱的に結合していればよい。 Thus, the fins 4a-4c may be formed separately from the main bodies 3a-3c. In this case, the fins 4a-4c only need to be thermally coupled to the main bodies 3a-3c.
　実施の形態１－３では、フィン４ａ－４ｃがヒートシンク１及び１ａ－１ｃの上面側に配置されている。しかし、本発明は、これに限定されない。フィン４ａ－４ｃが配置される方向は、フィン４ａ－４ｃが本体３ａ－３ｃの一方の面の側に設けられている限りにおいて、任意である。ヒートシンク１及び１ａ－１ｃは、フィン４ａ－４ｃが本体３ａ－３ｃの一方の面の側に設けられ、他方の面の側に被冷却部品が設けられた状態で、使用されていればよい。 In Embodiment 1-3, the fins 4a-4c are arranged on the upper surfaces of the heat sinks 1 and 1a-1c. However, the present invention is not limited to this. The direction in which the fins 4a-4c are arranged is arbitrary as long as the fins 4a-4c are provided on one side of the main body 3a-3c. The heat sinks 1 and 1a-1c may be used in a state where the fins 4a-4c are provided on one surface side of the main body 3a-3c and a component to be cooled is provided on the other surface side.
　実施の形態１－３では、フィン４ａ－４ｃが等ピッチで配列しているが、フィン４ａ－４ｃのピッチは任意である。また、フィン４ａ－４ｃの個数も任意である。複数のフィン４ａ－４ｃ全体に均一に空気を当てるには、フィン４ａ－４ｃが等ピッチであることが望ましいが、被冷却部品の位置、発熱分布に応じてフィン４ａ－４ｃのピッチが変化してもよい。 In Embodiment 1-3, the fins 4a-4c are arranged at an equal pitch, but the pitch of the fins 4a-4c is arbitrary. The number of fins 4a-4c is also arbitrary. In order to uniformly apply air to the entire plurality of fins 4a-4c, it is desirable that the fins 4a-4c have an equal pitch. However, the pitch of the fins 4a-4c varies depending on the position of the component to be cooled and the heat distribution. May be.
　実施の形態１－３では、フィン４ａ－４ｃと溝５ａ－５ｆが同じ方向に延伸している。換言すると、フィン４ａ－４ｃと冷媒配管８が同じ方向に延伸している。しかし、本発明はこれに限定されない。フィン４ａ－４ｃの延伸方向と溝５ａ－５ｆ及び冷媒配管８の延伸方向との関係は任意である。フィン４ａ－４ｃは、押し出し成型で本体３ａ－３ｃと一体形成するため、溝５ａ－５ｆ及び冷媒配管８の延伸方向に延伸するとよいが、他製法により形成することで、溝５ａ－５ｆ及び冷媒配管８の延伸方向と異なる方向に延伸してもよい。 In Embodiment 1-3, the fins 4a-4c and the grooves 5a-5f extend in the same direction. In other words, the fins 4a-4c and the refrigerant pipe 8 extend in the same direction. However, the present invention is not limited to this. The relationship between the extending direction of the fins 4a-4c and the extending direction of the grooves 5a-5f and the refrigerant pipe 8 is arbitrary. Since the fins 4a-4c are integrally formed with the main body 3a-3c by extrusion molding, the fins 4a-4c may be extended in the extending direction of the grooves 5a-5f and the refrigerant pipe 8. However, by forming by other manufacturing methods, the fins 5a-5f and the refrigerant 4 You may extend | stretch in the direction different from the extending | stretching direction of the piping 8. As shown in FIG.
　実施の形態１－３では、フィン４ａ－４ｃが平板状である。しかし、本発明はこれに限定されない。フィン４ａ－４ｃは、上述したように、本体３ａ－３ｃの一方の面の側に設けられていればよく、その限りにおいて、その形状は任意である。例えば、フィン４ａ－４ｃそれぞれは、複数のピン部材であってもよい。この場合、ピン部材は、溝５ａ－５ｆ及び冷媒配管８の延伸方向に配列するとよい。 In Embodiment 1-3, the fins 4a-4c are flat. However, the present invention is not limited to this. As described above, the fins 4a-4c only have to be provided on one surface side of the main body 3a-3c, and as long as the fins 4a-4c are provided, the shape thereof is arbitrary. For example, each of the fins 4a-4c may be a plurality of pin members. In this case, the pin members may be arranged in the extending direction of the grooves 5a-5f and the refrigerant pipe 8.
　実施の形態１－３では、円筒状の冷媒配管８を通すため、溝５ａ－５ｆが断面視半円形状であり、その結果、冷媒配管用空間８０は、断面視円形状である。しかし、本発明はこれに限定されない。溝５ａ－５ｆは、形成する冷媒配管用空間８０に通すことが可能である限り、その形状は任意である。例えば、冷媒配管８が断面視扁平の扁平管である場合、溝５ａ－５ｆは、断面視で扁平を２分割した形状であればよい。溝５ａ－５ｆの内壁は、熱伝導しやすくするため、横断面で冷媒配管８の全周と接触するとよい。換言すると、溝５ａ－５ｆの内壁は、冷媒配管８と熱的に結合しているとよい。 In Embodiment 1-3, since the cylindrical refrigerant pipe 8 is passed, the grooves 5a-5f are semicircular in cross section, and as a result, the refrigerant pipe space 80 is circular in cross section. However, the present invention is not limited to this. The shape of the grooves 5a-5f is arbitrary as long as it can be passed through the refrigerant piping space 80 to be formed. For example, when the refrigerant pipe 8 is a flat tube having a flat cross-sectional view, the grooves 5a-5f may have a shape obtained by dividing the flat into two in the cross-sectional view. The inner walls of the grooves 5a-5f are preferably in contact with the entire circumference of the refrigerant pipe 8 in a cross section in order to facilitate heat conduction. In other words, the inner walls of the grooves 5a-5f are preferably thermally coupled to the refrigerant pipe 8.
　また、溝５ａ－５ｆの内壁が冷媒配管８と熱的に結合する結果、部分品２ａ－２ｅと冷媒配管８は熱的に結合しているとよい。部分品２ａ－２ｅには、製造上のばらつき、傷、表面粗さ等により微細な凹凸が存在し、冷媒配管８にも、同様に微細な凹凸が存在するので、点接触を可能な限り防ぐため、
結合部に熱伝導部材、例えば、熱伝導グリースを使用して結合部の熱抵抗を下げるとよい。 Further, as a result of the inner walls of the grooves 5a-5f being thermally coupled to the refrigerant pipe 8, the partial products 2a-2e and the refrigerant pipe 8 are preferably thermally coupled. The part 2a-2e has fine irregularities due to manufacturing variations, scratches, surface roughness, etc., and the refrigerant pipe 8 also has fine irregularities to prevent point contact as much as possible. For,
It is preferable to reduce the thermal resistance of the coupling portion by using a heat conducting member, for example, heat conduction grease, at the coupling portion.
　実施の形態１－３では、部分品２ａ－２ｅが、連結用凸部６ｂ、６ｃ、６ｅ、７ａ、７ｄ、７ｆと連結用凹部６ａ、６ｄ、６ｆ、７ｂ、７ｃ、７ｅによって連結することで、ヒートシンク１及び１ａ－１ｃを形成している。しかし、本発明はこれに限定されない。部分品２ａ－２ｅを連結させる手段は任意である。例えば、ヒートシンク１及び１ａ－１ｃでは、部分品２ａ－２ｅを接着剤、ロウ材等を用いて接合してもよい。その場合、連結用凸部６ｂ、６ｃ、６ｅ、７ａ、７ｄ、７ｆと連結用凹部６ａ、６ｄ、６ｆ、７ｂ、７ｃ、７ｅは、本体３ａ－３ｃに形成されていなくてもよい。 In Embodiment 1-3, the component 2a-2e is connected by the connecting convex portions 6b, 6c, 6e, 7a, 7d, 7f and the connecting concave portions 6a, 6d, 6f, 7b, 7c, 7e. Heat sinks 1 and 1a-1c are formed. However, the present invention is not limited to this. The means for connecting the partial products 2a-2e is arbitrary. For example, in the heat sinks 1 and 1a-1c, the partial products 2a-2e may be joined using an adhesive, a brazing material, or the like. In that case, the connecting projections 6b, 6c, 6e, 7a, 7d, and 7f and the connecting recesses 6a, 6d, 6f, 7b, 7c, and 7e may not be formed on the main body 3a-3c.
　なお、部分品２ａ－２ｅが、連結用凸部６ｂ、６ｃ、６ｅ、７ａ、７ｄ、７ｆと連結用凹部６ａ、６ｄ、６ｆ、７ｂ、７ｃ、７ｅによって連結する場合、それらの組数に制限はない。また、連結用凸部６ｂ、６ｃ、６ｅ、７ａ、７ｄ、７ｆと連結用凹部６ａ、６ｄ、６ｆ、７ｂ、７ｃ、７ｅの組合せは、必ずしも両方の部分品２ａ－２ｅに連結用凸部６ｂ、６ｃ、６ｅ、７ａ、７ｄ、７ｆと連結用凹部６ａ、６ｄ、６ｆ、７ｂ、７ｃ、７ｅの両方を形成する必要はなく、一方の部分品に連結用凹部６ａ、６ｄ、６ｆ、７ｂ、７ｃ、７ｅのみ、もう一方の部分品２ａ－２ｅに連結用凸部６ｂ、６ｃ、６ｅ、７ａ、７ｄ、７ｆのみを形成してもよい。 When the part 2a-2e is connected by the connecting projections 6b, 6c, 6e, 7a, 7d, 7f and the connecting recesses 6a, 6d, 6f, 7b, 7c, 7e, the number of sets is limited. There is no. Further, the combination of the connecting convex portions 6b, 6c, 6e, 7a, 7d, 7f and the connecting concave portions 6a, 6d, 6f, 7b, 7c, 7e is not necessarily limited to the connecting convex portion 6b. 6c, 6e, 7a, 7d, 7f and the connecting recesses 6a, 6d, 6f, 7b, 7c, 7e are not necessarily formed, and the connecting recesses 6a, 6d, 6f, 7b, Only the projections 6b, 6c, 6e, 7a, 7d, and 7f may be formed on the other partial product 2a-2e only for 7c and 7e.
　本発明は、本発明の広義の精神と範囲を逸脱することなく、様々な実施形態及び変形が可能とされるものである。また、上述した実施形態は、本発明を説明するためのものであり、本発明の範囲を限定するものではない。つまり、本発明の範囲は、実施形態ではなく、請求の範囲によって示される。そして、請求の範囲内及びそれと同等の発明の意義の範囲内で施される様々な変形が、本発明の範囲内とみなされる。 The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. Further, the above-described embodiment is for explaining the present invention, and does not limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.
　本出願は、２０１８年４月１６日に出願された、日本国特許出願特願２０１８－７８０７０号に基づく。本明細書中に日本国特許出願特願２０１８－７８０７０号の明細書、特許請求の範囲、図面全体を参照として取り込むものとする。 This application is based on Japanese Patent Application No. 2018-78070 filed on April 16, 2018. The specification, claims, and entire drawings of Japanese Patent Application No. 2018-78070 are incorporated herein by reference.
　１，１ａ，１ｂ，１ｃ　ヒートシンク、２ａ，２ｂ，２ｃ，２ｄ，２ｅ　部分品、３ａ，３ｂ，３ｃ　本体、４ａ，４ｂ，４ｃ，４ｄ　フィン、５ａ，５ｂ，５ｃ，５ｄ，５ｅ，５ｆ　溝、６ａ，６ｄ，６ｆ，７ｂ，７ｃ，７ｅ　連結用凹部、６ｂ，６ｃ，６ｅ，７ａ，７ｄ，７ｆ　連結用凸部、８　冷媒配管、９ａ，９ｄ，９ｆ　右側面、９ｂ，９ｃ，９ｅ　左側面、１０　ファン、１１　熱交換器、１２　電気品箱、１３　吸気口、１４　電子部品、１５　ダクト、１７　インバータ回路、１８　送風部、１９　熱交換部、２０　機械部、２１　室外機、２２　筐体、３０　冷却面、３１　突出壁、４０，４１　発熱部材、８０　冷媒配管用空間。 1, 1a, 1b, 1c heat sink, 2a, 2b, 2c, 2d, 2e partial product, 3a, 3b, 3c main body, 4a, 4b, 4c, 4d fin, 5a, 5b, 5c, 5d, 5e, 5f groove, 6a, 6d, 6f, 7b, 7c, 7e Connection recess, 6b, 6c, 6e, 7a, 7d, 7f Connection projection, 8 Refrigerant piping, 9a, 9d, 9f Right side, 9b, 9c, 9e Left side 10, fan, 11 heat exchanger, 12 electrical box, 13 air inlet, 14 electronic parts, 15 duct, 17 inverter circuit, 18 air blower, 19 heat exchanger, 20 machine, 21 outdoor unit, 22 housing, 30 cooling surfaces, 31 protruding walls, 40, 41 heating members, 80 refrigerant piping space.

Claims (9)

  1. 　第１の溝が設けられた第１の面を有する第１の本体と、
    　前記第１の本体の、一方の面の側に設けられた第１のフィンと、
    　前記第１の面と隣接する第２の面を有し、前記第２の面に、前記第１の溝が延伸する方向に延伸すると共に、前記第１の溝と対向する第２の溝が設けられた第２の本体と、
    　前記第２の本体の、前記一方の面の側にある面の側に設けられた第２のフィンと、
    　前記第１の溝と前記第２の溝の間に設けられた冷媒配管と、を備えた、
    　ヒートシンク。     A first body having a first surface provided with a first groove;
    A first fin provided on one side of the first body;
    A second surface adjacent to the first surface, the second surface extending in a direction in which the first groove extends, and a second groove facing the first groove; A second body provided;
    A second fin provided on a surface side of the second main body on the one surface side;
    A refrigerant pipe provided between the first groove and the second groove,
    heatsink.
  2. 　前記第１の本体は、前記第１の面に凹部を有し、
    　前記第２の本体は、前記第２の面の、前記凹部と隣り合う位置に凸部を有し、
    　前記凸部は、前記凹部に嵌合して前記第１の本体を前記第２の本体に連結している、
    　請求項１に記載のヒートシンク。     The first body has a recess in the first surface;
    The second main body has a convex portion at a position adjacent to the concave portion of the second surface,
    The convex portion is engaged with the concave portion to connect the first main body to the second main body.
    The heat sink according to claim 1.
  3. 　前記凸部は、可撓性を有し、弾性変形をすることにより、前記凹部に嵌合している、
    　請求項２に記載のヒートシンク。     The convex part has flexibility and is fitted into the concave part by elastic deformation.
    The heat sink according to claim 2.
  4. 　前記第１の本体は、前記第１のフィンと一体的に形成され、
    　前記第２の本体は、前記第２のフィンと一体的に形成されている、
    　請求項１から３のいずれか１項に記載のヒートシンク。     The first body is integrally formed with the first fin;
    The second body is formed integrally with the second fin;
    The heat sink according to any one of claims 1 to 3.
  5. 　前記第１の本体は、前記第１のフィンの端部と熱的に結合し、
    　前記第２の本体は、前記第２のフィンの端部と熱的に結合している、
    　請求項１から３のいずれか１項に記載のヒートシンク。     The first body is thermally coupled to an end of the first fin;
    The second body is thermally coupled to an end of the second fin;
    The heat sink according to any one of claims 1 to 3.
  6. 　本体と、該本体の一方の面の側に設けられたフィンと、を備え、前記本体が、第１の面に設けられた第１の溝、前記第１の面と対向する第２の面に設けられ、前記第１の溝が延伸する方向に延伸すると共に前記第１の溝と対向する位置に配置された第２の溝、前記第１の面に設けられた凸部と凹部のいずれか一方及び、前記第２の面に設けられた前記凸部と前記凹部のいずれか他方を有する部分品を複数個備え、
    　複数個の前記部分品のうちのいずれか一つは、
    　前記第１の面が、別の前記部分品の前記第２の面と隣接し、かつ前記凸部と前記凹部のいずれか一方が、前記別の前記部分品の、前記凸部と前記凹部のいずれか他方と嵌合することにより、前記別の前記部分品に連結し、
    　複数個の前記部分品は、
    　前記第１の面と前記第２の面が隣接して、前記第１の溝と前記第２の溝が隣接方向に連続することにより形成された冷媒配管を配置するための空間を複数個、有する、
    　ヒートシンク。     A main body and a fin provided on one surface side of the main body, wherein the main body has a first groove provided on the first surface, and a second surface facing the first surface. Any one of a second groove disposed in a position extending in the direction in which the first groove extends and facing the first groove, and a convex portion and a concave portion provided on the first surface. A plurality of partial parts having either one of the convex portion and the concave portion provided on the second surface,
    Any one of the plurality of parts is
    The first surface is adjacent to the second surface of another partial product, and either the convex portion or the concave portion is formed between the convex portion and the concave portion of the other partial product. By fitting with one of the other, it is connected to the other part,
    A plurality of the parts are
    A plurality of spaces for arranging refrigerant pipes formed by the first surface and the second surface being adjacent to each other, and the first groove and the second groove being continuous in the adjacent direction; Have
    heatsink.
  7. 　複数個の、前記冷媒配管を配置するための空間のうち、少なくとも１つには、前記冷媒配管が配置されている、
    　請求項６に記載のヒートシンク。     Among the plurality of spaces for arranging the refrigerant pipe, at least one of the refrigerant pipes is arranged.
    The heat sink according to claim 6.
  8. 　請求項７に記載のヒートシンクの使用方法であって、
    　前記複数個の、前記冷媒配管を配置するための空間のうち、前記冷媒配管が配置された空間を、前記冷媒配管が配置されていない空間よりも、冷却対象である発熱部材の発熱量が大きい箇所の近傍に配置する、ヒートシンクの使用方法。     A method of using the heat sink according to claim 7,
    Of the plurality of spaces for arranging the refrigerant pipes, the heat generation amount of the heat generating member to be cooled is larger in the space in which the refrigerant pipe is arranged than in the space in which the refrigerant pipe is not arranged. How to use a heat sink that is placed near the location.
  9. 　請求項１から７のいずれか１項に記載のヒートシンク、前記ヒートシンクに空気を送風するファン、及び前記ヒートシンクによって冷却される電子部品を有する室外機と、
    　室内機と、
    　前記室外機と前記室内機とを接続する接続用配管と、
    　を備えた空気調和装置。     An outdoor unit comprising the heat sink according to any one of claims 1 to 7, a fan for blowing air to the heat sink, and an electronic component cooled by the heat sink;
    Indoor unit,
    A pipe for connecting the outdoor unit and the indoor unit;
    Air conditioner with
PCT/JP2019/015570 2018-04-16 2019-04-10 Heat sink, method for using heat sink, and air conditioning device WO2019203083A1 (en)

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JPS5430640A (en) * 1977-08-12 1979-03-07 Hitachi Ltd Air cooling heat pump type air conditioner
JPH05187724A (en) * 1992-01-07 1993-07-27 Mitsubishi Electric Corp Electric component box cooling device for air conditioner
JP2006046694A (en) * 2004-07-30 2006-02-16 Daikin Ind Ltd Refrigerating device
JP2008076008A (en) * 2006-09-25 2008-04-03 Hitachi Appliances Inc Air conditioner
JP2010040996A (en) * 2008-08-08 2010-02-18 Furukawa Electric Co Ltd:The Heat sink
JP2010153443A (en) * 2008-12-24 2010-07-08 Fujitsu Ltd Cooling device, cooling-device manufacturing method, and electronic apparatus
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JPS5430640A (en) * 1977-08-12 1979-03-07 Hitachi Ltd Air cooling heat pump type air conditioner
JPH05187724A (en) * 1992-01-07 1993-07-27 Mitsubishi Electric Corp Electric component box cooling device for air conditioner
JP2006046694A (en) * 2004-07-30 2006-02-16 Daikin Ind Ltd Refrigerating device
JP2008076008A (en) * 2006-09-25 2008-04-03 Hitachi Appliances Inc Air conditioner
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