JP5127688B2 - Air conditioner outdoor unit and air conditioner equipped with the same - Google Patents

Description

  The present invention relates to an outdoor unit of an air conditioner and an air conditioner including the same, and more particularly, to an outdoor unit of an air conditioner that can prevent the spread of fire inside a product due to a fire and an air including the same It relates to a harmony machine.

In the outdoor unit of an air conditioner, if a fire occurs in the electrical parts on the side and the cover of the valve, there is a risk of spreading to the inside of the product.
For this reason, conventionally, the periphery of the terminal block is closed with a flameproof cover for fixing the wiring, and both sides thereof are fixed with two screws so as not to spread to the inside of the product (see, for example, Patent Document 1).
Also, there is a type in which a sheet metal cover that covers an electrical component is fixed with a screw, and a resin packed cover is further attached with a screw on the cover (for example, see Patent Document 2).

Japanese Patent Laid-Open No. 11-2428 (page 4, FIG. 1) JP 7-63374 A (page 4, FIG. 1)

Since the technique according to Patent Document 1 uses screw fixing on both sides of the flameproof cover for fixing the wiring, workability is poor when fixing the wiring.
Moreover, the technique which concerns on patent document 2 must attach a resin-made packed cover with a screw, after fixing a sheet-metal cover with a screw, and its workability | operativity is bad.

  The present invention has been made in order to solve the above-mentioned problems, ensures safety against fire, and facilitates cable clamp mounting work and mounting of a metal cover and a resin cover. It is an object to provide an outdoor unit for an air conditioner that can be performed and an air conditioner including the same.

An outdoor unit of an air conditioner according to the present invention includes a resin cover that covers an electrical product and a pipe connection portion, and a metal cover that is disposed inside the resin cover and covers an opening of the electrical product. Each of the resin cover and the metal cover is provided with a screw insertion hole at a position facing each other, and the edge of the metal cover screw insertion hole has a height corresponding to the thickness of the resin cover. A cylindrical throttle part is provided, and the throttle part is fitted to the inner periphery of the screw insertion hole of the resin cover .

According to the present invention, it can be handled integrally in a temporarily fixed state, and therefore, a complicated operation performed for each cover at the time of attachment and removal can be avoided, and the installation operation is easy. Further, according to the present invention, since the metal cover is provided, it is possible to prevent the flame from spreading inside the product.

Embodiment 1 FIG.
1 is a perspective view of an outdoor unit of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is an exploded perspective view of a side surface of the outer panel of FIG. 1, and FIG. 3 is an exploded perspective view of a main part of FIG. is there.
In the figure, a cable clamp 1 for fixing a power supply wiring 20 is attached to a side surface 10 of an outer panel of an outdoor unit. A protruding portion 2 is formed at the center of the cable clamp 1, and first and second legs 3, 4 are provided on both sides thereof, and an insertion portion 5 is formed on the first leg 3. A screw insertion hole 6 is formed in the second leg 4. These are integrally formed by a single metal plate.

  The insertion portion 5 provided in the first leg portion 3 of the cable clamp 1 configured as described above is inserted and locked into the insertion hole 11 provided in the side surface 10 of the outer panel, and the second leg portion. The screw 7 inserted into the screw insertion hole 6 is screwed into the screw hole 12 provided in the side surface 10 of the outer panel, and the second leg portion 4 is fixed to the side surface 10 of the outer panel. At this time, the insertion hole 11 on the side surface 10 of the outer panel is covered and closed by the surface of the first leg portion 3 on the side where the insertion portion 5 is provided. A gap 4a is formed on the back side of the projecting portion 2 with the side surface 10 of the outer panel. The gap 4a is formed slightly narrower than the thickness of the power supply wiring 20, and is formed in the gap 4a. The power supply wiring 20 is sandwiched.

  In addition, the indoor unit and the outdoor unit of the air conditioner are connected by a refrigerant pipe 30. The refrigerant pipe 30 includes two copper pipes 31 and 32 through which the refrigerant flows. In order to prevent performance degradation due to heat and performance degradation due to heat exchange with the outside air, and condensation in the low temperature part, polyethylene heat insulating materials 33 and 34 are wound. Furthermore, the outer peripheries of the copper tubes 31, 32 with the heat insulating materials 33, 34 are collectively covered with an aluminum tape 35 so that the heat insulating materials 33, 34 are not directly exposed to the outside.

  The resin cover 40 is further screwed to the side surface of the outdoor unit so as to cover the valves 36 and 37 to which these electric products and the refrigerant pipe 30 are connected.

Next, an example of the assembly procedure will be described.
When installing the indoor unit and the outdoor unit, the resin cover 40 is removed from the side surface of the outdoor unit in order to connect the power supply wiring 20 and the refrigerant pipe 30.
Next, the power supply wiring 20 is attached to the back surface of the projecting portion 2 of the cable clamp 1, and the insertion portion 5 of the cable clamp 1 is inserted into the insertion hole 11 of the side surface 10 of the outer panel and is locked. The screw 7 is inserted into the screw insertion hole 6 of the part 4 and screwed into the screw hole 12 provided in the side surface 10 of the outer panel, and then screwed. In this way, the power supply wiring 20 is fixed to the side surface 10 of the outer panel of the outdoor unit. At this time, the first and second leg portions 3 and 4 of the cable clamp 1 are substantially the same height as the side surface 10 of the outer panel, and the surface of the first leg portion 3 on the side where the insertion portion 5 is provided is The insertion hole 11 of the side surface 10 is closed by covering from the outside.
Then, the resin cover 40 is further screwed to the side surface 10 of the outer panel so as to cover these electric products and the valves 36 and 37.

  According to the first embodiment, the cable clamp 1 has a projecting portion 2 at the center, and first and second legs 3 and 4 are formed on both sides thereof. Since the insertion portion 5 is also formed with a screw insertion hole 6 in the second leg portion 4, the insertion of the side surface 10 of the outer panel by the surface of the first leg portion 3 on the side where the insertion portion 5 is formed. The hole 11 can be closed. Further, when fixing, only one side of the cable clamp 1 may be fixed with the screw 7. In this way, the installation operation is easy, the insertion hole 11 opened in the side surface 10 of the outer panel can be closed and the wiring can be fixed, and the spread of fire to the inside of the product due to the flame from the outside can be prevented. High safety in the event of a fire.

  In addition, since the heat insulating materials 33 and 34 wound around the copper pipes 31 and 32 of the refrigerant pipe 30 are made of a flammable material such as foamed polyethylene, once it is ignited, it burns violently. Since the aluminum tape 35 is wrapped and covered, it is possible to prevent the spread of fire due to external ignition.

Embodiment 2. FIG.
4 is an exploded perspective view of the side of the outer panel of the outdoor unit of an air conditioner according to Embodiment 2 of the present invention, and FIG. 5 is an enlarged perspective view of the main part of FIG.
A resin cover 40 serving as a cover for electrical products and valves is attached to the side surface 10 of the outer panel of the outdoor unit, and a thin metal cover 50 covering the electrical product opening of the side surface 10 is attached to the inside thereof. It has been.

  A mounting flange 40a is provided on the peripheral edge of the resin cover 40, a locking claw 41 is formed on the back surface, and a screw insertion hole 42 is provided at a distance. A mounting flange 50 a is also provided at the periphery of the metal cover 50, a locking hole 51 is provided at a position facing the locking claw 41 of the resin cover 40, and it faces the screw insertion hole 42. A screw insertion hole 52 that is subjected to burring is provided at a position where the burring is performed. The edge of the screw insertion hole 52 of the metal cover 50 is provided with a cylindrical drawing portion 52a by drawing processing having a height corresponding to the plate thickness of the mounting flange 40a of the resin cover 40 by drawing processing. The narrowed portion 52a is fitted to the inner periphery of the screw insertion hole 42 of the resin cover 40.

Next, an example of the assembly procedure will be described.
When the resin cover 40 and the metal cover 50 are combined, the locking claw 41 of the resin cover 40 is locked in the locking hole 51 of the metal cover 50, and the screw insertion of the resin cover 40 is inserted. The throttle portion 52a of the screw insertion hole 52 of the metal cover 50 is fitted into the inner periphery of the hole 42, and the resin cover 40 and the metal cover 50 are temporarily fixed and integrated. In this state, the fixing screw 60 is inserted into the screw insertion holes 42 and 52, screwed into the screw holes 12 provided on the side surface of the outer panel, and fixed.

  According to the second embodiment, the locking claw 41 of the resin cover 40 engages with the locking hole 51 of the metal cover 50, and the metal is formed on the inner periphery of the screw insertion hole 42 of the resin cover 40. Since the narrowed portion 52a of the screw insertion hole 52 of the cover 50 is fitted, it can be handled integrally in a temporarily fixed state, and therefore, it is possible to avoid complicated work for each cover at the time of attachment and removal. Can be installed, and the installation operation is easy.

In the event of a fire, the metal cover 50 is provided on the inner side, so that it is possible to prevent the flame from the outside from spreading inside the product, and the safety in the event of a fire is high.
Even when the resin cover 40 is burned, melted, and burned out by an external flame, the inner metal cover 50 is surrounded by the fixing screw 60 through the throttle portion 52a of the screw insertion hole 52. Since it is fixed to the side surface 10 of the panel, the metal cover 50 can be held. Then, since the narrowed portion 52a is formed in the screw insertion hole 52 of the metal cover 40 so as to have the same height as the plate thickness of the resin cover 40, the resin cover 40 is burned, melted and burned out. Even afterwards, the metal cover 50 will not rattle.

It is a perspective view of the outdoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is a disassembled perspective view of the side surface of the outer panel of FIG. It is a disassembled perspective view of the principal part of FIG. It is a disassembled perspective view of the outer panel side surface of the outdoor unit of the air conditioner which concerns on Embodiment 2 of this invention. It is the perspective view which expanded the principal part of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Cable clamp, 2 Projection part, 3 1st leg part (one leg part), 4 2nd leg part (the other leg part), 5 insertion part, 6 screw insertion hole, 10 side surface of outer panel ( Outer panel), 11 insertion hole, 12 screw hole, 20 power supply wiring, 30 refrigerant piping, 33, 34 heat insulating material, 35 aluminum tape, 40 resin cover, 41 locking claw, 42, 52 screw insertion hole, 50 Metal cover, 51 Locking hole, 52a Restriction part.

Claims (6)

A resin cover that covers the electrical product and the pipe connection part, and a metal cover that is disposed inside the resin cover and covers the opening of the electrical product,
Each of the resin cover and the metal cover is provided with screw insertion holes at positions facing each other,
A cylindrical throttle portion having a height corresponding to the plate thickness of the resin cover is provided at the edge of the screw insertion hole of the metal cover, and the throttle portion is formed on the inner periphery of the screw insertion hole of the resin cover. An air conditioner outdoor unit characterized by being fitted. A metal cable clamp that is covered with the resin cover, has a projecting portion that sandwiches the power supply wiring in the center, has legs on both sides, and has an insertion portion on one leg. ,
The insertion portion is locked to the insertion hole of the outer panel, and the insertion hole is covered with the leg portion on the side where the insertion portion is provided, and the other leg portion of the cable clamp is screwed to the outer shell panel.
The outdoor unit for an air conditioner according to claim 1. The cable clamp composed of the projecting portion, the leg portion, and the insertion portion is formed integrally with a metal plate.
The outdoor unit for an air conditioner according to claim 2, wherein the outdoor unit is an air conditioner. The outdoor unit of the air conditioner according to any one of claims 1 to 3, wherein a locking portion that locks the resin cover and the metal cover is provided. The outdoor unit of the air conditioner according to any one of claims 1 to 4, wherein an aluminum tape is wound around an outer periphery of a heat insulating material of a refrigerant pipe connecting the indoor unit and the outdoor unit. An air conditioner comprising the outdoor unit according to claim 1.

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