JP2013191774A - Electric apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deterioration of the cooling efficiency of an electronic component housed in a housing when a fin provided at the housing is downsized along with the downsizing of the housing.SOLUTION: An electric apparatus includes: a housing that houses first electronic components; and a first fin unit that is disposed on one surface of an outer surface of the housing and has at least one fin conducting heat exchange with the first electronic components. Both ends of the at least one fin extend toward the same first side on the one surface. The housing houses the multiple first electronic components disposed in a long first arrangement region. The at least one fin may traverse a long side of the first arrangement region from the exterior side of the first arrangement region in an in-plane direction of the one surface and extend to the internal side of the first arrangement region. Further, the at least one fin may traverse the long side of the first arrangement region from the internal side of the first arrangement region and extend to the exterior side of the first arrangement region.

Description

  The present invention relates to an electric device including a fin.

2. Description of the Related Art There is known an electric device in which a fin for cooling an electronic component housed in a housing is provided in the housing (see, for example, Patent Document 1 and Patent Document 2).
Patent Document 1 Japanese Patent Application Laid-Open No. 2011-192809 Patent Document 2 Japanese Patent Application Laid-Open No. 2005-269692

  By the way, when fins provided in a housing are downsized along with downsizing of electrical equipment, the cooling efficiency of electronic components housed in the housing may be reduced.

  An electrical apparatus according to an aspect of the present invention includes a housing that houses a first electronic component, and a first fin that is disposed on one surface of the outer surface of the housing and has at least one fin that exchanges heat with the first electronic component. And both ends of at least one fin extend toward the same first side of one surface.

  In the electric device, the housing accommodates a plurality of first electronic components arranged in the elongated first arrangement area, and the at least one fin is arranged in the first in-plane direction. Extending from the outside of the first placement region across the long side of the first placement region and extending to the inside of the first placement region, and across the long side of the first placement region from the inside of the first placement region May be stretched.

  In the electric device, the at least one fin may include a curved portion that curves in an in-plane direction. The at least one fin may have a substantially U shape that curves in the in-plane direction of one surface. The first fin unit is adjacent to the first fin, the second fin disposed adjacent to the first fin on the first side of the first fin, and adjacent to the second fin on the first side of the second fin. The distance between the second fin and the third fin may be wider than the distance between the first fin and the second fin.

  In the above electrical device, the housing further includes a second electronic component, and the electrical device further includes a second fin unit that is disposed on one surface of the housing and has at least one fin that exchanges heat with the second electronic component. The at least one fin of the second fin unit may extend toward the second side opposite to the first side of the one surface.

  In the above electric device, the housing accommodates a plurality of second electronic components arranged in the elongated second arrangement region, and at least one fin included in the second fin unit is in one in-plane direction. In the above, the long side of the second placement region is crossed from the outside of the second placement region to the inside of the second placement region, and the long side of the second placement region is crossed from the inside of the second placement region. You may extend | stretch to the outer side of a 2nd arrangement | positioning area | region.

  In the electric device, the at least one fin included in the second fin unit may include a curved portion that curves in an in-plane direction. The at least one fin of the second fin unit may have a substantially U shape that curves in the in-plane direction of one surface.

  An electrical device according to one embodiment of the present invention is disposed on a surface of a housing that houses a plurality of first electronic components disposed in a first elongated placement region, and on the outer surface of the housing. A first fin unit having at least one fin for exchanging heat with the first electronic component of the first electronic component, and the at least one fin in the in-plane direction of one surface from the outside of the first arrangement region to the long side of the first arrangement region Is extended to the inside of the first arrangement area, and is extended from the inside of the first arrangement area to the outside of the first arrangement area across the long side of the first arrangement area.

  In the above electric device, the case houses a plurality of second electronic components arranged in a long second arrangement region substantially parallel to the first arrangement region, and the electric device is placed on one surface of the case. The second fin unit further includes a second fin unit having at least one fin that is disposed and exchanges heat with the plurality of second electronic components, and the second fin unit has at least one fin in a second in-plane direction. Extending from the outside of the second placement region across the long side of the second placement region and extending from the inside of the second placement region to the outside of the second placement region May be stretched.

  In the above electric device, at least one fin of the second fin unit is opposite to the long side facing the first arrangement area of the second arrangement area from the outside of the second arrangement area in the in-plane direction of one surface. Extending to the inside of the second placement region, and extending from the inside of the second placement region to the outside of the second placement region across the long side opposite to the second placement region. Also good.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

It is a disassembled perspective view of the power conditioner which concerns on this embodiment. It is the perspective view seen from the back side of the base. It is the top view seen from the back side of the base.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is an exploded perspective view of a power conditioner 100 according to the present embodiment. FIG. 2 is a perspective view of the base 12 provided in the power conditioner 100 as seen from the back surface 12b side. FIG. 3 is a plan view of the base 12 as seen from the back surface 12b side. In FIG. 3, in order to clearly show the arrangement relationship between the first fin unit 31 and the second fin unit 32 and the plurality of first switching elements 61 and the plurality of second switching elements 62 included in the power conditioner 100. , The base 12 is shown through.

  The power conditioner 100 is an example of an electric device. The power conditioner 100 includes a booster circuit and an inverter. The booster circuit and the inverter include a plurality of first switching elements 61 and a plurality of second switching elements 62 which are examples of the first electronic component and the second electronic component. The power conditioner 100 boosts a DC voltage from a DC power source such as a solar cell or a fuel cell by a booster circuit, converts the boosted DC voltage into an AC voltage by an inverter, and supplies the AC voltage to a load. Further, the power conditioner 100 reversely flows an AC voltage to the system power supply.

  The power conditioner 100 includes a base 12, an upper lid 14, a first fin unit 31, a second fin unit 32, a first fan unit 41, and a second fan unit 42. A plurality of first substrates 51 and a plurality of second substrates 52 are arranged above the arrangement surface 12 a that is one surface of the base 12. The upper lid 14 covers the arrangement surface 12 a of the base 12, and constitutes a housing that houses electronic components such as the plurality of first switching elements 61 and the plurality of second switching elements 62 together with the base 12.

  The plurality of first substrates 51 are arranged along one side surface 12 c in the longitudinal direction of the base 12. The plurality of second substrates 52 are arranged along the other side surface 12 d in the longitudinal direction of the base 12. The plurality of first substrates 51 have a long first arrangement region 21 along the side surface 12c. The plurality of second substrates 52 have a long second arrangement region 22 that is substantially parallel to the first arrangement region 21 along the side surface 12d. The plurality of first switching elements 61 are arranged linearly along the side surface 12 c in the first arrangement region 21. The plurality of second switching elements 62 are linearly arranged in the second arrangement region 22 along the side surface 12d.

  The 1st fin unit 31 is arrange | positioned at the back surface 12b of the base 12 which is one surface of the outer surface of a housing | casing. The first fin unit 31 exchanges heat with the plurality of first switching elements 61. The first fin unit 31 is disposed at a position corresponding to the plurality of first switching elements 61. The first fin unit 31 has a plurality of fins 33. The plurality of fins 33 are erected on the back surface 12b so as to be separated from each other. Both ends of the plurality of fins 33 extend toward the side surface 12c that is the same first side of the back surface 12b. The first fin unit 31 only needs to have at least one fin 33. A first fan unit 41 is disposed at one end of the first fin unit 31. The first fan unit 41 controls the flow of the heat exchange medium to the first fin unit 31. More specifically, the first fan unit 41 circulates air as a heat exchange medium between the plurality of fins 33. Accordingly, the first fan unit 41 cools the first fin unit 31 and indirectly cools the plurality of first switching elements 61.

  The second fin unit 32 is disposed on the back surface 12 b of the base 12. The second fin unit 32 exchanges heat with the plurality of second switching elements 62. The second fin unit 32 is disposed at a position corresponding to the plurality of second switching elements 62. The second fin unit 32 has a plurality of fins 34. The plurality of fins 34 are erected on the back surface 12b so as to be separated from each other. Both ends of the plurality of fins 34 extend toward the side surface 12d that is the second side opposite to the first side of the back surface 12b. Note that the second fin unit 32 may have at least one fin 34. A second fan unit 42 is disposed at one end of the second fin unit 32. The second fan unit 42 controls the flow of the heat exchange medium to the second fin unit 32. More specifically, the second fan unit 42 circulates air as a heat exchange medium between the plurality of fins 34. Accordingly, the second fan unit 42 cools the second fin unit 32 and indirectly cools the plurality of second switching elements 62.

  The plurality of fins 33 included in the first fin unit 31 include a curved portion that curves in the in-plane direction of the back surface 12b. The plurality of fins 33 have a substantially U shape that curves in the in-plane direction of the back surface 12b. The plurality of fins 33 extend from the outer side of the first arrangement region 21 to the inner side of the first arrangement region 21 from the outer side of the first arrangement region 21 in the in-plane direction of the back surface 12b. The long side of the first arrangement area 21 is crossed from the inside of the area 21 to the outside of the first arrangement area 21. Furthermore, at least one fin 33 among the plurality of fins 33 extends from the side surface 12c toward the side surface 12d, so that at least one first switching element 61-1 among the plurality of first switching elements 61 is provided. By traversing and extending from the side surface 12d toward the side surface 12c, the at least one other first switching element 61-2 of the plurality of first switching elements 61 is traversed.

  The plurality of fins 34 included in the second fin unit 32 include a curved portion that curves in the in-plane direction of the back surface 12b. The plurality of fins 34 are substantially U-shaped and curved in the in-plane direction of the back surface 12b. The substantially U-shaped openings of the plurality of fins 34 are disposed on the opposite side of the substantially U-shaped openings of the plurality of fins 33. The plurality of fins 34 extend from the outer side of the second arrangement region 22 to the inner side of the second arrangement region 22 from the outer side of the second arrangement region 22 in the in-plane direction of the back surface 12b. The second arrangement area 22 is extended from the inside to the outside of the second arrangement area 22 across the long side of the second arrangement area 22. Furthermore, at least one fin included in the second fin unit 32 is a length facing the first arrangement region 21 of the second arrangement region 22 from the outside of the second arrangement region 22 in the in-plane direction of the back surface 12b. A long side that extends across the long side opposite to the side and extends to the inside of the second arrangement region 22 and faces the first arrangement region 21 of the second arrangement region 22 from the inside of the second arrangement region 22 It extends across to the outside of the second arrangement region 22. Further, the at least one fin extends from the outside of the second placement region 22 to the inside of the second placement region 22 across the long side of the second placement region 22 facing the first placement region 21; It extends from the inside of the second placement region 22 to the outside of the second placement region 22 across the long side opposite to the second placement region 22.

  By forming the plurality of fins 33 and the plurality of fins 34 as described above, at least one fin of the plurality of fins 33 or at least one fin of the plurality of fins 34 is a plurality of first switching elements. 61 traverses at least one first switching element 61 of 61 or at least one second switching element 62 of a plurality of second switching elements 62. Furthermore, at least one other fin of the plurality of fins 33 or at least one other fin of the plurality of fins 34 is at least one other first switching element 61 or the plurality of first switching elements 61. The second switching element 62 crosses at least one other second switching element 62. That is, the plurality of fins 33 or the plurality of fins 34 are arranged in a distributed manner with respect to the plurality of first switching elements 61 or the plurality of second switching elements 62 arranged linearly. Therefore, the cooling efficiency of each of the plurality of fins 33 or the plurality of fins 34 can be improved.

  Further, by making the plurality of fins 33 or the plurality of fins 34 curved, the length of at least one of the plurality of fins 33 or the plurality of fins 34 can be made longer than the length of the base 12 in the longitudinal direction. Thereby, along with the downsizing of the housing including the base 12, it is possible to suppress a reduction in cooling efficiency of the plurality of fins by reducing the heat radiation area of the plurality of fins by shortening the length of the plurality of fins. .

  The first fin unit 31 includes a first fin 33a, a second fin 33b disposed adjacent to the first fin 33a on the side surface 12c side from the first fin 33a, and a side surface 12c side from the second fin 33b. And the third fin 33c disposed adjacent to the second fin 33b. The interval between the second fin 33b and the third fin 33c and the interval between the first fin 33a and the second fin 33b may be the same. Further, the interval between the second fin 33b and the third fin 33c may be wider than the interval between the first fin 33a and the second fin 33b. The third fin 33c has a larger curvature than the first fin 33a. Therefore, air is circulated between the second fin 33b and the third fin 33c by making the interval between the second fin 33b and the third fin 33c wider than the interval between the first fin 33a and the second fin 33b. It becomes easy to do. Note that the intervals between the plurality of fins 34 included in the second fin unit 32 may be equal intervals or different intervals similarly to the intervals between the plurality of fins 33 included in the first fin unit 31.

  Furthermore, in the above-described embodiment, an example in which both ends of the plurality of fins 33 and the plurality of fins 34 extend to the side surface 12c and the side surface 12d of the base 12 has been described. However, both ends of the plurality of fins 33 and the plurality of fins 34 may not reach the side surface 12 c and the side surface 12 d of the base 12. For example, both ends of the plurality of fins 33 and the plurality of fins 34 may be cut inside the base 12 without extending to the edge of the base 12. Further, at least one of the plurality of fins 33 and the plurality of fins 34 may extend toward the upper side or the lower side of the back surface 12 b of the base 12. Further, the plurality of fins 33 or the plurality of fins 34 may have a wave-like shape in the in-plane direction of the back surface 12 b along the longitudinal direction of the first arrangement region 21 or the second arrangement region 21.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

12 base 14 upper lid 21 first arrangement area 22 second arrangement area 31 first fin unit 32 second fin units 33, 34 fin 41 first fan unit 42 second fan unit 61 switching element 62 switching element 100 power conditioner

Claims (12)

A housing for housing the first electronic component;
A first fin unit disposed on one surface of the outer surface of the housing and having at least one fin for heat exchange with the first electronic component;
Both ends of the at least one fin are electric devices extending toward the same first side of the one surface. The housing accommodates a plurality of the first electronic components arranged in a long first arrangement region,
The at least one fin extends in the in-plane direction of the one surface from the outside of the first arrangement region across the long side of the first arrangement region to the inside of the first arrangement region, and the first The electrical device according to claim 1, extending from the inside of one arrangement area to the outside of the first arrangement area across the long side of the first arrangement area.   The electric device according to claim 1, wherein the at least one fin includes a curved portion that curves in an in-plane direction of the one surface.   The electric device according to any one of claims 1 to 3, wherein the at least one fin has a substantially U shape that is curved in an in-plane direction of the one surface. The first fin unit includes a first fin, a second fin disposed adjacent to the first fin on the first side of the first fin, and the first side of the second fin. And a third fin disposed adjacent to the second fin,
The electrical apparatus according to claim 4, wherein a distance between the second fin and the third fin is wider than a distance between the first fin and the second fin. The housing houses the second electronic component,
The electrical equipment is
A second fin unit disposed on the one surface of the housing and having at least one fin for heat exchange with the second electronic component;
The at least one fin included in the second fin unit extends to a second side opposite to the first side of the one surface. Electrical equipment. The housing accommodates a plurality of the second electronic components arranged in the elongated second arrangement region,
The at least one fin included in the second fin unit crosses the long side of the second arrangement area from the outside of the second arrangement area in the in-plane direction of the one surface, and the inside of the second arrangement area. The electrical device according to claim 6, wherein the electrical device extends to the outside of the second placement region from the inside of the second placement region, across the long side of the second placement region.   The electric device according to claim 6 or 7, wherein the at least one fin included in the second fin unit includes a curved portion that curves in an in-plane direction of the one surface.   The electrical device according to any one of claims 6 to 8, wherein the at least one fin of the second fin unit has a substantially U shape that is curved in an in-plane direction of the one surface. A housing that houses a plurality of first electronic components arranged in the elongated first arrangement region;
A first fin unit disposed on one surface of the outer surface of the housing and having at least one fin for heat exchange with the plurality of first electronic components;
The at least one fin extends in the in-plane direction of the one surface from the outside of the first arrangement region across the long side of the first arrangement region to the inside of the first arrangement region, and the first An electric device that extends from the inside of one arrangement area to the outside of the first arrangement area across the long side of the first arrangement area. The housing accommodates a plurality of second electronic components arranged in a long second arrangement area substantially parallel to the first arrangement area,
The electrical equipment is
A second fin unit disposed on the one surface of the housing and having at least one fin for heat exchange with the plurality of second electronic components;
The at least one fin included in the second fin unit crosses the long side of the second arrangement area from the outside of the second arrangement area in the in-plane direction of the one surface, and the inside of the second arrangement area. The electrical device according to claim 10, wherein the electrical device extends to the outside of the second placement region from the inside of the second placement region, across the long side of the second placement region.   The at least one fin of the second fin unit is opposite to a long side facing the first arrangement area of the second arrangement area from the outside of the second arrangement area in the in-plane direction of the one surface. The second arrangement extends across the long side on the side to the inside of the second arrangement area and crosses the long side on the opposite side of the second arrangement area from the inside of the second arrangement area. The electrical device according to claim 11, which extends to the outside of the region.

Images