JP4533363B2 - Electrical component unit - Google Patents

Description

  The present invention relates to an electrical component unit, and more particularly to an electrical component unit that supports electrical components including predetermined heat generating components in an outdoor unit of an air conditioner.

  Many outdoor units of an air conditioner generally include a heat exchanger, an outdoor fan, a compressor, a reactor, and the like in an outdoor unit casing made of a flame retardant material. In the outdoor unit casing, an electrical component unit containing various electrical components such as a power transistor and a capacitor is disposed. The control circuit in the electrical component unit supplies drive power to the outdoor fan, the compressor, and the like, and performs drive control thereof.

Here, in general, it is desirable to arrange the reactor in the vicinity of the electrical component unit because of the wiring and the like. However, it is necessary to make the electrical component unit less susceptible to the heat generated by the reactor. It is difficult to arrange at a position too close to the product unit (see Patent Document 1). Further, the reactor is attached at a position away from the electrical component unit.
JP 2004-93085 A

  In a conventional outdoor unit of an air conditioner, the reactor is attached at a position away from the electrical component unit, and thus the outdoor unit casing may become large.

Further, since the reactor is disposed at a position away from the electrical component unit, the wiring between the electrical component unit and the reactor becomes long. For this reason, high costs are required .

  An object of the present invention is to prevent an outdoor unit casing of an air conditioner from becoming large and reduce costs.

An electrical component unit according to a first aspect of the present invention is an electrical component unit that stores a plurality of electrical components including predetermined heat generating components in an outdoor unit of an air conditioner, and includes a support member and a reactor. The support member has an arrangement part in which a part of the plurality of electrical components can be arranged, and a protruding part that is connected to the arrangement part and extends in a substantially horizontal direction. The reactor is one of a plurality of electrical components, and is attached to the surface of the projecting portion close to the electrical component disposed in the placement portion. And the reactor is arrange | positioned on the same side as the electrical equipment arrange | positioned at the arrangement | positioning part. The support member is provided so as to extend downward from the second end portion on the opposite side of the first end portion on the arrangement portion side of the projecting portion, and is capable of arranging a terminal plate including terminals of a plurality of electrical components. It further has a plate-like portion.

In this electrical component unit, the projecting portion extends substantially horizontally from the arrangement portion. A part of the plurality of electrical components is disposed in the placement unit, and the reactor is attached to the projecting portion so as to be close to the electrical component placed in the placement unit . The reactor is arranged on the same side as the electrical component arranged in the arrangement unit. Furthermore, in this electrical component unit, the terminal plate is attached to the lower plate-like portion that extends downward from the second end portion on the opposite side of the first end portion on the arrangement portion side of the protruding portion.

Here, since the reactor is attached to the surface of the protruding portion that is close to the electrical component disposed in the placement portion, the material required for wiring can be reduced, and the electrical component and the projection on the placement portion can be reduced. The wiring between the reactor on the unit can be shortened. Since the reactor is arranged on the same side as the electrical component arranged in the arrangement unit, the material necessary for wiring can be reduced more effectively. Therefore, the size and cost of the apparatus can be reduced. Moreover, the electrical equipment and reactor arranged in the arrangement unit can be handled as one unit, and the degree of freedom in design increases. Further, the terminal board can be integrally supported by the electrical component unit. Further, materials necessary for wiring can be further reduced.

An electrical component unit according to a second aspect of the present invention is the electrical component unit according to the first aspect , wherein the arrangement portion includes a plate-like portion disposed above the electrical component other than the reactor, and a side portion of the electrical component other than the reactor. The side support portion is disposed so as to hang downward from the plate-like portion, and the lower end portion of the side support portion and the lower end portion of the lower plate-like portion are substantially the same height. Located in position.

  In this electrical component unit, when it is attached to an outdoor unit of an air conditioner, the electrical component unit may be temporarily placed on a desk or the like for work. In this case, since the lower end portion of the side support portion and the lower end portion of the lower plate-like portion are substantially at the same height, the posture is maintained (the lower end portion of the side support portion and the lower end portion). The electrical component unit can be placed in a state in which the lower end of the lower plate-like portion is in contact with the desk), and the work becomes easier.

An electrical component unit according to a third aspect is the electrical component unit according to the first or second aspect , wherein the support member is formed of a flameproof member.

  In this electrical component unit, the support member is formed of a flameproof member. For this reason, even when a plurality of electrical components are burned, other components can be made difficult to burn.

An electrical component unit according to a fourth aspect of the present invention is the electrical component unit according to any one of the first to third aspects, and has a concave portion formed on the upper surface so as to extend in the projecting direction of the projecting portion.

  In this electrical component unit, a concave portion formed along the protruding direction is formed on the upper surface of the protruding portion. For this reason, the strength in the protruding direction is further increased. For this reason, the support of the reactor can be further stabilized.

In the electrical component unit according to the first aspect of the invention, the reactor is attached to a surface close to the electrical component disposed in the placement portion among the surfaces of the protruding portion, so that the material required for wiring can be reduced, and the placement portion The wiring between the upper electrical component and the reactor on the protrusion can be shortened. Since the reactor is arranged on the same side as the electrical component arranged in the arrangement unit, the material necessary for wiring can be reduced more effectively. Therefore, the size and cost of the apparatus can be reduced. Moreover, the electrical equipment and reactor arranged in the arrangement unit can be handled as one unit, and the degree of freedom in design increases. Further, the terminal board can be integrally supported by the electrical component unit. Further, materials necessary for wiring can be further reduced.

In the electrical component unit according to the second aspect of the present invention, since the lower end of a part of the electrical component and the lower end of the lower plate-shaped portion are substantially at the same height, the posture is maintained (one of the electrical components). The electrical component unit can be placed in a state where the lower end portion of the lower portion and the lower end portion of the lower plate-like portion are set up as legs), which makes it easier to work.

In the electrical component unit according to the third aspect , even if a plurality of electrical components are burned, other components can be made difficult to burn.

In the electrical component unit according to the fourth aspect , the support of the reactor can be further stabilized.

1. Configuration FIG. 1 shows an air conditioner 1 including an electrical component unit 5 (see FIG. 3 and the like) according to an embodiment of the present invention. The air conditioner 1 includes an indoor unit 2 that is installed indoors, an outdoor unit 3 that is installed outdoors, and a refrigerant pipe 4 that connects the outdoor unit 3 and the indoor unit 2. Since the present invention relates to the electrical component unit 5 disposed inside the outdoor unit 3, the outdoor unit 3 will be mainly described.

  The outdoor unit 3 is shown in FIGS. The outdoor unit 3 includes a casing 31, a heat exchanger 32, a compressor 33, a blower unit 34, and the electrical component unit 5. The interior of the outdoor unit 3 is divided by a partition plate 35 into a machine room 37 in which the electrical component unit 5 and the compressor 33 are disposed, and a ventilation chamber 36 in which the heat exchanger 32 and the fan 343 are disposed. Yes. The partition plate 35 is a flat plate-like member and has a substantially rectangular cutout 351. As shown in FIG. 6, a rail 352 having a predetermined length is provided at the upper portion of the notch 351, and a plate-like member 354 having a rectangular hole 353 is provided at the lower portion. The electrical component unit 5 will be described in detail later.

  The casing 31 is a substantially rectangular parallelepiped member, and is formed of sheet metal and resin. Moreover, the casing 31 has the ventilation port 311a and an inlet port (not shown), and ventilates the air suck | inhaled from the inlet port from the ventilation port 311a. The ventilation port 311a and the intake port are disposed on the ventilation chamber 36 side. As shown in FIG. 2, the casing 31 includes a case main body 311, a case side wall portion 312, and a resin cover 313. The case body 311 is a member that covers the compressor 33 and the heat exchanger 32. The case side wall 312 is a plate-like member that is disposed at the end of the case body on the machine chamber 37 side and has an opening 31a. The resin cover 313 is attached to the outside of the side wall portion 312 and is a plate-like member that covers a part of the refrigerant pipe 4.

  As shown in FIG. 3, the heat exchanger 32 is an L-shaped device. The heat exchanger 32 includes a fin portion 321 in which a plurality of fins are arranged so as to be L-shaped, and a pipe 322 that is arranged by being bent a plurality of times so as to be supported by the fin portions 321. A refrigerant such as fluorocarbon flows through the pipe 322.

  The compressor 33 is disposed in the vicinity of the partition plate 35 of the machine room 37 and is a machine for compressing the refrigerant. For example, a machine that compresses low-pressure refrigerant gas into high-pressure refrigerant gas. Further, the compressor 33 is disposed below the electrical component unit 5. Furthermore, the compressor 33 includes a cylindrical case 331, a mechanism for compressing the refrigerant, an electric motor, and the like (not shown). A mechanism for compressing the refrigerant, an electric motor, and the like are arranged inside a cylindrical case 331.

  The air blowing unit 34 is a member provided in the ventilation chamber 36 and is a portion for blowing the air in the ventilation chamber 36 to the outside. Further, the air blowing unit 34 includes a fan motor 341, a fan base 342, and a fan 343. The fan motor 341 generates power for rotating the fan 343. The fan motor 341 is rotated by a columnar motor unit 341a and the columnar motor unit 341a. And a rotating shaft 341b protruding toward the front. The fan base 342 is a member attached to the fin portion 321 and includes a fixing portion 342a, a support member protruding portion 342b, and a fan motor support portion 342c. The fixing portion 342a is a portion disposed on the upper side of the heat exchanger 32. The support member protruding portion 342b is a portion protruding from the fixed portion 342a toward the air blowing port 311a. Further, the tip of the support member protrusion 342b on the air blowing port 311a side is bent toward the lower side in FIG. Furthermore, a large substantially rectangular hole is provided in the center of the support member protrusion 342b. The fan motor support portion 342c is a plate-like portion that extends from the support member protruding portion 342b to the bottom of the casing 31 in the vertically downward direction, and is a portion to which the fan motor 341 is attached. Note that most of the weights of the fan motor 341, the fan base 342, and the fan 343 are supported by the bottom of the casing 31 via the fan motor support portion 342c. The fan motor support 342c is bent at both ends in the direction orthogonal to the longitudinal direction, and has higher strength than that of a flat plate. The fan 343 is a member attached to the rotation shaft 341b of the fan motor 341, and is a member that blows air in the outdoor unit 3 from the blower port 311a. The fan 343 includes a cylindrical portion 343a attached so as not to rotate relative to the rotation shaft 341b, and three blade members 343b attached to the side surface of the cylindrical portion 343a. Further, the fan 343 is disposed toward the air blowing port 311a in order to discharge the air in the ventilation chamber 36 to the outside.

2. Electrical component unit The electrical component unit 5 is disposed on the upper side of the compressor 33 and is supported by the partition plate 35 and the casing 31. Further, as shown in FIGS. 4 and 5, the electrical component unit 5 includes a support member 51, a plurality of electrical components 52 including a reactor 521, and a terminal plate 53.

  The support member 51 is a member that supports the electrical component 52 and the terminal plate 53, and is disposed close to the upper surface of the casing 31. Further, the support member 51 includes an arrangement part 511, a protruding part 512, and a lower plate-like part 513. The placement unit 511 is a portion that supports the electrical component 52 other than the reactor 521, and is a plate-like upper plate-like portion 511 a disposed above the electrical component 52 other than the reactor 521, and the electrical component 52 other than the reactor 521. A side support portion 511b disposed on the side portion of the electrical component 52 and a lower support plate-shaped portion 511d disposed on the lower side of the electrical component 52 other than the reactor 521. The electrical component 52 is disposed between the upper plate-like portion 511a and the lower support plate-like portion 511d of the arrangement portion 511. The protruding portion 512 is a plate-like portion that protrudes from the upper plate-like portion 511 a of the arrangement portion 511 to the opposite side of the direction in which the ventilation chamber 36 is arranged. The protruding portion 512 is a hollow member formed by bending the first flat plate 512a protruding from the upper plate-shaped portion 511a into a substantially U shape and connecting the second flat plate 512b to both ends so as to connect both ends. is there. Further, three grooves 512 c are arranged in parallel on the upper surface of the protruding portion 512. The lower plate-like portion 513 is a portion extending downward from an end portion on the opposite side to the end portion on the arrangement portion 511 side of the protruding portion 512, and includes a terminal plate attachment portion 513a, a support portion 513b, and a side wall portion 513c. And have. The terminal board attaching part 513a is a part to which the terminal board 53 is attached and is provided in a flat plate shape. The support portion 513 b is a portion that is disposed below the terminal plate attachment portion 513 a and is a portion that is supported by the casing 31. The support portion 513b is provided with a wiring support portion 513d that supports the wiring of the terminal board 53. The side wall portion 513c is a plate-like portion extending outward from both side portions of the terminal attachment portion 513a. The lower end portion 511c of the side portion support portion 511b is substantially at the same height as the lower end portion 513e of the lower plate-like portion 513. Here, the casing 31 has an opening 31a at a portion corresponding to the position where the terminal plate mounting portion 513a is arranged, and the wiring is arranged so as to pass through the opening 31a in order to connect to an external power source ( (See FIG. 2). And the shielding board 6 formed with the nonflammable resin material is arrange | positioned so that this opening 31a may be block | closed, and even when the inside of the machine room 37 ignites, it is hard to exert influence on the exterior. The shielding plate 6 is for supporting the wiring connected to the terminal plate 53 and blocking the machine room 37 side from the outside side.

  The plurality of electrical components 52 are members supported by the placement unit 511, and are a reactor 521, a power transistor, a plurality of capacitors, and the like. The reactor 521 is a substantially cubic member, and is a member attached to the protruding portion 512 of the support member 51. Further, the reactor 521 is arranged at a distance from the other electrical components 52. A heat radiation fin 522 is attached to the power transistor. As shown in FIG. 6, the heat radiation fin 522 is a device for releasing heat from the power transistor, and is supported by a notch 351 in the partition plate. An insertion port 523 is provided in the vicinity of the heat radiation fin 522. The insertion port 523 is formed between the support member 51 of the electrical component unit 5 and the insertion plate 523a provided at a predetermined interval with respect to the support member 51. The partition plate 35 is connected to the insertion port 523. The electrical component unit 5 is supported by the partition plate 35 by sliding the rail 352. Here, the insertion plate 523a is formed a predetermined distance from the upper end of the partition plate of FIG. 6 and has the same length as the rail 352 of the partition plate 35. For this reason, the entire periphery of the notch 351 of the partition plate 35 is not covered with the insertion plate 523a. Furthermore, a locking portion (not shown) that engages with a rectangular hole 353 in the plate-like portion provided in the notch 351 of the partition plate 35 is provided below the heat radiation fin 522.

  The terminal board 53 is a member to which two power supply lines and one signal line are connected, and is attached to the terminal board attachment portion 513 a of the support member 51. The two power supply lines are connected to the indoor unit 2 of the air conditioner 1, and electricity is supplied from the power source via the indoor unit 2 of the air conditioner 1. One signal line is a line for exchanging signals with the indoor unit 2 of the air conditioner 1.

3. Features The support member 51 of the electrical component unit 5 includes a disposition portion 511 that supports the electrical component 52, and a protrusion portion 512 that protrudes from the disposition portion 511 toward the end of the casing 31, and the protrusion portion 512 includes a reactor 521. Therefore, the electrical component 52 other than the reactor 521 and the reactor 521 can be arranged at close positions. For this reason, the electrical equipment 52 other than the reactor 521 and the reactor 521 can be handled as one unit, and the degree of freedom of design increases. Further, since the reactor 521 is disposed at a position away from the electrical component 52 and above the electrical component 52, even when the reactor 521 generates heat, it is difficult to affect other electrical components 52. And since the terminal board 53 can be arrange | positioned in the electrical component unit 5, materials, such as wiring, can be reduced and cost can be held down. Since the lower end portion 511c of the side support portion 511b is substantially at the same height as the lower end portion 513e of the lower plate-like portion 513, when the electrical component unit 5 is placed on a desk or the like, the electrical component unit 5 Can be maintained as shown in FIG. In addition, this makes it easier to work and facilitates maintenance and repair. Since the protrusion 512 is a hollow plate member and the three grooves 512c are formed on the upper surface of the protrusion 512, the strength is high, and even a heavy member such as the reactor 521 is supported. be able to. Furthermore, since the support member 51 is formed of a flameproof material, even if the electrical component 52 is ignited, it can be made difficult to affect other members. Further, even when the electrical component unit 5 is supported by the partition plate 35 and only a part of the insertion plate 523a is located on the ventilation chamber 36 side, the ventilation chamber side even if it is ignited from the machine chamber 37 side. It becomes difficult to affect.

4). Other Embodiments In the above embodiment, the lower plate-like portion 513 for arranging the terminal plate 53 is attached to the end of the protruding portion 512, but the present invention is not limited to this, and the lower plate-like portion 513 is electrically mounted. The product unit 5 may not be provided.

The whole external view of an air conditioner. The external view at the time of removing a part of casing of an outdoor unit. The figure which showed the outdoor unit which removed the casing. The perspective view which showed the electrical component unit. The side view of an electrical component unit. The figure which shows an electrical component unit and a partition plate.

DESCRIPTION OF SYMBOLS 1 Air conditioner 3 Outdoor unit 5 Electrical component unit 51 Support member 52 Electrical component 53 Terminal plate 511 Arrangement | positioning part 512 Protrusion part 513 Lower plate-like part 521 Reactor 513e Lower end part 511b of lower plate-like part Side support part 511c Side part support Lower end 512c groove (concave part)

Claims (4)

An electrical component unit (5) for housing a plurality of electrical components (52) including predetermined heat generating components in the outdoor unit (3) of the air conditioner (1),
A support member having an arrangement part (511) in which a part of the plurality of electrical components (52) can be arranged, and a protruding part (512) connected to the arrangement part (511) and extending in a substantially horizontal direction. (51),
A reactor (521) attached to a surface of the projecting portion (512) close to the electrical component (52) disposed in the placement portion (511), which is one of the plurality of electrical components (52); ,
With
The reactor (521) is arranged on the same side as the electrical component (52) arranged in the arrangement unit (511) ,
The support member (51)
A lower plate-like portion that is provided so as to extend downward from the second end portion on the opposite side of the first end portion on the arrangement portion (511) side of the protruding portion (512) and on which the terminal plate (53) can be arranged. (513)
In addition,
Electrical component unit (5). The arrangement portion (511) includes a plate-like portion (511a) arranged above the electrical component (52) other than the reactor (521), and an electrical component (52) other than the reactor (521). A side support portion (511b) disposed on the side portion so as to hang down from the plate-like portion (511a);
The lower end portion (511c) of the side support portion (511b) and the lower end portion (513e) of the lower plate-like portion (513) are located at substantially the same height position.
The electrical component unit (5) according to claim 1 . The electrical component unit according to claim 1 or 2 , wherein the support member (51) is formed of a flameproof member. The electrical component unit according to any one of claims 1 to 3 , wherein the protruding portion (512) has a concave portion (512c) formed on an upper surface thereof so as to extend in a protruding direction of the protruding portion (512).

Images