JP2950063B2 - Outdoor unit of air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an outdoor unit of an air conditioner.

[0002]

2. Description of the Related Art FIG.
FIG. 6 is a perspective view showing a structure of a conventional outdoor unit disclosed in Japanese Patent Application Laid-Open No. 6-206. In the drawing, reference numeral 1 denotes a substantially vertical back plate having a suction port, which is integrally formed on the bottom plate 2 in an L-shape by welding or the like, and a locking flange 3 is provided on the periphery of the back plate 1 and the bottom plate 2. Provided. A side plate 6 having a depth equal to the depth of the base plate portion 5 is integrally formed on the front plate 4. Further, an engagement bending portion 7 having a predetermined width is provided at an edge portion of the side plate 6. At the lower part of the front plate 4, an L-shaped flange portion 9 is provided which is continuous with the locking step 8, and at the upper portion, a positioning step 11 provided with a slit 10 and a top plate flange portion 12 are continuous. It is formed in a step shape. Lid top plate 1
3 is provided with a locking tongue 14. A fan guard 17 integrally formed with a fan casing 16 is fixed to the outlet 15 of the front plate 4 with a claw or the like.

Next, a mounting method will be described. Front panel 4
The sides of the side plate 6 are spread out in an eight-shape, and the engagement bending portion 7 is applied to the positioning step 18. Then, the locking tongue portion 14 of the lid-like top plate 13 is fitted into the slit 10 of the front plate 4, and the front plate 4 and the locking flange 3 of the rear plate 1 are joined by the lid-like top plate 13. The fixing of the outer parts is completed by fixing the screws. Further, since the fan casing 16 is integrally attached to the fan guard 17, the air path of the outlet can be formed here.

FIGS. 9 and 10 show, for example, Japanese Utility Model Laid-Open No. 59-182.
In the figure, reference numeral 19 denotes a mounting member, in which one end is bent into an L shape to form a mounting edge 20 and the other end is bent into a U shape to form a holding portion 21. The mounting edge 20 is fixed by a baffle plate 22. Reference numeral 23 denotes a four-way valve cylinder portion, which is a U-shaped holding portion 2.
1 is fitted with the cushioning member 24 interposed therebetween to hold the four-way valve itself.

Next, the operation will be described. In this device, the U-shaped holding portion 21 of the mounting member 19 fits the cylinder portion 23 of the four-way valve to which the cushioning material 24 is mounted, and the mounting edge 2
0 is fixed to the air guide plate 22 of the main body with screws to hold the four-way valve. As the vibration transmission, the vibration generated from the compressor is transmitted to the four-way valve through the discharge and suction pipes. Part of the vibration is transmitted to the baffle plate 22 via the cushioning material, and the rest is further transmitted to the next pipe, and finally the vibration is transmitted to the unit.

FIG. 11 is a perspective view showing the structure of a conventional outdoor unit disclosed in, for example, Japanese Patent Application Laid-Open No. 62-22928. In FIG. 11, reference numeral 25 denotes a cantilevered motor support provided on the bottom plate 2. , A flange portion 26 is provided on the upper surface and the left and right surfaces, and an L-shaped foot portion 27 which is partially inclined is formed on the lower surface of the left and right flanges. It is fixed by. On the motor support front side 25, a fan motor 30 to which a propeller fan 29 is connected is supported.

Next, the operation will be described. The drive of the fan motor 30 causes the propeller fan 29 to start rotating.
Then, torsional vibration is applied to the motor support 25,
At this time, since the L-shaped foot 27 is obliquely inclined, the L-shaped foot 27 works as a beam to suppress vibration. In addition, since a screwdriver is easily inserted when the screw is fixed to the obliquely inclined portion 28, workability and serviceability are good.

[0008]

In the above-mentioned conventional outdoor unit, when the lid-shaped top plate 13 is made of a coated steel plate in consideration of cost and efficiency, the end surface of the top plate 13 becomes an edge and may cause injury. There was sex. Further, since the locking tongues 14 are fitted into the slits 10 and fixed, it is difficult to find the slits by fitting the locking tongues 14 on the back side to the slits 10. There was also a problem that it was not clear how to remove it when removing it at the time of service, even if you tried to remove it in front of you.

Since the outlet is an integral part of the fan casing 16 and the fan guard 17, a circular image of the outlet appears, which is not much better than the design. This was due to the fact that the propeller fan and shadows inside the outlet seemed darker, giving a contrast to the paint color of the exterior.

The conventional four-way valve support device is configured as described above. Therefore, the refrigerant piping and the refrigerant circuit components close to the four-way valve must be supported at other places. In addition, vibration from the compressor of the refrigerant pipe is transmitted through the four-way valve and the support device,
There is a problem that the vibration of the compressor needs to be absorbed by the refrigerant pipe between the four-way valve and the compressor because it affects the main body air guide plate and causes a chatter and a beat sound.

The conventional motor support is configured as described above. In particular, recent outdoor units tend to be thinner due to weight reduction and cost reduction. When the bottom plate 2 is made thinner in this way, a problem is the product strength. Since the motor support 25 is fixed only to the lower surface of the bottom plate 2, when a strong force is applied in a strength test or the like, the motor support 25 is applied with a force to fall forward, and the bottom plate 2 is deformed. When the bottom plate 2 is deformed, the motor support 25 is tilted, which causes a contact with a fan, abnormal noise, and performance deterioration.

The present invention has been made in order to solve the above-mentioned problems. Even if the lid-shaped top plate is made of a painted steel plate, the end surface does not become an edge and is not injured. It is an object of the present invention to provide an outdoor unit that can be easily removed.

Further, in terms of design, when the fan guard on the front face is viewed by the fan casing having a rectangular flange colored in a black system, the outlet appears to be square, which is different from the conventional circular image of the outlet. It is an object of the present invention to provide an outdoor unit having excellent design.

It is another object of the present invention to provide a device which supports the entire refrigerant pipe to fix, prevent deformation and movement of the refrigerant pipe, absorbs vibration from the compressor, and does not vibrate components for fixing the supporting device. I do.

It is still another object of the present invention to provide an outdoor unit in which the motor support is prevented from falling due to deformation of the bottom plate even when the bottom plate is made thinner with the weight reduction of the outdoor unit.

[0016]

An outdoor unit for an air conditioner according to the present invention is provided with a stepped step at the top of a front plate and a back plate, and a plurality of projections formed at the step. An edge of the lid-like top plate made of a steel plate is turned around in a U-shape to provide a full-circle curling portion that comes into contact with the convex portion. In an outdoor unit of an air conditioner that closes an upper opening formed by a face plate with a lid-like top plate, a corner of the full-circle curling portion so as to generate a spring property at a full-curl portion serving as a contact portion with the convex portion. A notch is formed in the portion.

Further, the outer peripheral portion of the air outlet of the front plate is provided with a rectangular stepped portion and squeezed. The fan casing having a rectangular flange portion in contact with the stepped portion is colored in a black system color. The fan guard is provided on the front surface of the fan casing, and the fan casing is sandwiched and fixed between the fan guard and the front plate.

Further, at one end of the plate-shaped motor support,
In an outdoor unit of an air conditioner in which a fan motor connected to a propeller fan is supported, and the other end is installed on a bottom plate and the fan motor is fixed by cantilever support, the bottom portion of the motor support is left, right, front and rear. A foot is formed by bending in the shape of a letter, and a holding member integrally formed by a spot or the like is provided on the foot on the front surface of the bottom portion and the side surface of the motor support, and the front side of the holding device is extended to a flange portion of the bottom plate. It is extended and bent into an L-shape, the front side of the L-shape is fixed to the flange portion, and the upper surface of the holder is formed so as to be inclined upward toward the motor support.

[0019]

In the present invention, the notch formed at the corner of the full-circle curling portion has a spring property at the contact portion with the convex portion of the full-curl portion, so that the force applied to the contact portion is reduced.

Further, when the fan guard on the front is viewed by the fan casing having a square flange colored in a black system, the blowout port looks square and gives a different image.

Further, when a strong force is applied by a strength test or the like, the holder of the motor support disperses the force to the flange portion of the bottom plate, so that the motor support does not easily fall.

[0022]

【Example】

Embodiment 1 FIG. In FIG. 1, a step-like step portion 33 is provided above the front plate 31 and the back plate 32, and a plurality of convex portions 34 are formed in the step portion 33. Also, the top plate flange 1
2 is provided above the step portion 33. Numeral 35 is a lid-like top plate made of a painted steel plate, and as shown in FIG. 2, the lower end surface portion is constituted by a curling portion 36 formed by bending the entire periphery into a U-shape, and has four positions. The end face 37 of the corner R is formed in a saw blade shape.

In the outdoor unit configured as described above, a lid-like top plate 35 is put on the upper opening formed by the combination of the front plate 31 and the back plate 32 from above.
At this time, the curling portion 36 on the entire circumference of the end face comes into contact with the plurality of convex portions 34 of the step portion 33. The curling portion 36 has saw blade-shaped notches formed at four corners, and the contact portion with the convex portion 34 is formed. Since it has a certain degree of resilience, it is easy to insert and remove it due to the resiliency, and the mounting structure of the lid-like top plate 35 has no rattling. And the end face is curled to prevent injury by hand. Further, by forming the corner portion in the shape of a saw blade, the curling portion 36 of the lid-like top plate 35 is easily bent when the curling portion 36 is manufactured, and the end face does not need to be cracked.

Embodiment 2 FIG. In FIG. 3, the outer peripheral portion of the outlet 38 of the front plate 31 is narrowed by providing a step 39 in a square shape. Reference numeral 40 denotes a fan casing having a square flange 41 in contact with the front side of the step portion 39. The fan casing 40 is colored black and has a plurality of claws 42.
The claw 42 is formed so as to fit into a lattice 44 of a fan guard 43 provided on the front side of the fan casing 40. A mounting hole 45 is provided on the fan guard 43 and is fixed to the front plate 31 by screws 46 with the fan casing 40 interposed therebetween.

The plurality of claws 42 of the fan casing 40 are fitted into the grids 44 of the fan guard 43, and the fan casing 40 and the fan guard 43 are temporarily fixed. Then, the fan casing 40 is fixed to the front plate 31 with screws 46 interposed therebetween. The outlet is only a circular shape, but the fan casing itself is colored in a black system color and has a square flange portion 41 so that it can be viewed from the outside. If you see the outlet,
The outlet is visible in a square shape and it is newer than the design.

Embodiment 3 FIG. An embodiment of the present invention will be described below with reference to the drawings. FIG.
Is a perspective view of the present invention, and FIG. 5 shows a side view. Refrigerant devices such as expansion valves and solenoid valves have their connected pipes integrally fixed to the pipes connected to the four-way valve body 23 by brazing 51 or the like. A plurality of U-shaped bent portions are formed in a discharge pipe and a suction pipe connected from the four-way valve body 23 to the compressor. The cylinder part 23 of the four-way valve is provided with a vibration absorbing component 50 having a plurality of convex portions 52 provided on the inner surface. One end of the vibration absorbing component 50 is formed in a U-shape, and a mounting edge 48 is attached to the other end. The provided attachment member 47 is fitted to hold the four-way valve 23. The mounting member 47 is the wind guide plate 22
Is attached by screws.

Next, the operation will be described. Vibration from the compressor is transmitted to the four-way valve from the discharge pipe and the suction pipe, which are connection pipes. Here, the vibration is reduced by the elasticity of the U-shaped bent portion. The remaining vibration is transmitted to the four-way valve, and the four-way valve 23 absorbs the vibration by the vibration absorbing component 50 here. Also,
Due to the plurality of convex portions 52 on the inner surface of the vibration absorbing component 50, the vibration from the four-way valve 23 is not transmitted to the air guide plate 22. Even when a strong impact is transmitted to the unit due to a strength test or the like, the refrigerant equipment such as an expansion valve or a solenoid valve, which is a heavy object, has its connection pipe fixed to the pipe of the four-way valve by brazing 51, and the four-way valve itself is also fixed. Since it is fixed, the piping does not bend or contact.

In the third embodiment, the mounting member 47 is
However, it may be fixed to a durable part having no vibration, and has the same effect as that of the third embodiment.

The vibration-absorbing component 50 has the same effect as that of the third embodiment if the above-mentioned purpose is achieved, even if the vibration-absorbing component 50 does not have a structure to be attached to the four-way valve in advance for the purpose of holding the refrigerant pipe and absorbing vibration.

Embodiment 4 FIG. Hereinafter, the fourth embodiment will be described with reference to FIGS. One end of the plate-shaped motor support 55 has a fan motor 30 connected to the propeller fan 29.
Is supported, and the other end is installed on the bottom plate 2 so that the fan motor 3
0 is fixed by cantilever support. An L-shaped bent portion 57 is formed on the bottom surface 56 of the motor support 55 on the left and right and the front surface, and the foot portion 57 on the front surface of the bottom portion and the motor support side surface 58 are integrally formed by a spot or the like. Tool 59, and the front side 60 of the holder 59 is L
And a concave portion 61 formed in the bottom plate 2
Is fixed by screws or the like. The holder upper surface 62 is provided with a slope so as to be inclined upward on the motor support side.

Next, the operation will be described. The drive of the fan motor 30 causes the propeller fan 29 to start rotating.
Then, torsional vibration is applied to the motor support 55.
At this time, the L-shaped foot 57 is attached to the motor support 55.
Is provided with a fixing member 59, and the front side 60 is fixed by the flange portion of the bottom plate 2, so that the holding member 59 becomes firm and acts to suppress vibration. When a strong force is applied as in the strength test, the motor support 55 tends to fall forward due to the overlap of the fan motor 30, but the L in the holder 59 is not sufficient.
The character portion becomes stiff and prevents falling, and the force is dispersed from the front side 60 to the flange portion of the bottom plate 2. For this reason,
The bottom plate 2 in contact with the foot 57 of the motor support is less likely to be deformed. In addition, the upper surface of the holding portion 59 becomes obliquely inclined toward the motor support side 55, and this also acts as a firmness in the front-rear direction, so that the motor support is unlikely to fall down.

[0032]

Since the present invention is configured as described above, the following effects can be obtained.

Even if the lid-like top plate is made of painted steel plate, the end surface is curled, so that hands are not injured even when performing the mounting work or removing it during service. And the mounting workability is good due to the spring property of the curling part. In addition, even when it is detached, it can be detached by lifting it up as it is, so that serviceability is good. Since the four corners are saw-tooth-shaped, they are easy to bend even when the curling part is manufactured, and are hard to crack.

By changing the fan casing to a black system color from the circular image of the outlet, the image becomes a square outlet, so that the novelty is better than the design and the design is excellent. The fan casing is temporarily fixed with claws to fix the fan guard to the front plate, and the fan casing is also fixed together, so that the mounting workability is good.

As the weight of the outdoor unit is reduced, even if the bottom plate is made thinner, the motor support has the holder integrated with the motor support, and the holder itself has both the flange surface of the bottom plate and the lower surface of the bottom plate. The motor support is not deformed because the bottom plate is not easily deformed even when a strong force such as a strength test is applied. Therefore, there is no contact with the propeller fan or abnormal noise.

[Brief description of the drawings]

FIG. 1 is a perspective view showing Embodiments 1 and 2 of the present invention.

FIG. 2 is an enlarged partial perspective view of a portion A in Embodiment 1 of the present invention.

FIG. 3 is a partial perspective view showing a second embodiment of the present invention.

FIG. 4 is a perspective view showing a third embodiment of the present invention.

FIG. 5 is a side view showing a third embodiment of the present invention.

FIG. 6 is a perspective view of an outdoor unit according to a fourth embodiment of the present invention.

FIG. 7 is a perspective view of a motor support according to a fourth embodiment of the present invention.

FIG. 8 is a perspective view of a conventional outdoor unit.

FIG. 9 is a perspective view of a conventional outdoor unit.

FIG. 10 is a side view of a conventional outdoor unit.

FIG. 11 is a perspective view of a conventional outdoor unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 back plate 2 bottom plate 3 locking flange 4 front plate 5 base plate portion 6 side plate 7 engagement bending portion 8 locking step 9 L-shaped flange portion 10 slit 11 positioning step 12 top plate flange portion 13 Lid-shaped top plate 14 Locking tongue 15 Blow-out port 16 Fan casing 17 Fan guard 18 Positioning step 19 Mounting member 20 Mounting edge 21 Holding section 22 Wind guide plate 23 Cylinder section of four-way valve 24 Buffer material 25 Motor support 26 Flange Part 27 L-shaped foot part 28 Diagonal inclined part 29 Propeller fan 30 Fan motor 31 Front plate 32 Back plate 33 Step-like stepped part 34 Plural convex parts 35 Cover top plate 36 Curling part bent in U-shape 37 End faces of four corner R portions 38 Blow outlet 39 Square step portion 40 Fan casing 41 Square flange 42 Double Individual claws 43 Fan guard 44 Lattice 45 Mounting hole 46 Screw 47 Mounting member 48 Mounting edge 49 Holding part 50 Vibration absorbing component 51 Brazing part 52 Convex part 53 Discharge pipe, suction pipe 54 Bent part 55 Motor support 56 Bottom part 57 Foot Part 58 Side part 59 Holder 60 Front side 61 Recess 62 Upper surface of holder

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Hisashi Ueno 3-181-1, Oka, Shizuoka-shi Mitsubishi Electric Engineering Co., Ltd. Nagoya Office Shizuoka Branch (72) Inventor Yasuo Makita 3--18, Oka, Shizuoka-shi No. 1 Mitsubishi Electric Engineering Co., Ltd. Nagoya Office Shizuoka branch office (56) References JP-A-62-22928 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) F24F 5 / 00

Claims (3)

(57) [Claims] 1. A step-like step on top of a front plate and a back plate.
Part is formed, and a plurality of convex parts are formed on the step part.
Before turning the edge into the U-shape at the end of the lid top plate made of steel
A curling portion is provided which is in contact with the convex portion and the convex portion is provided.
The front and back plates come into contact with the curling part
Conditioning that covers the upper opening formed by the lid with a lid-like top plate
In the outdoor unit of the machine, it becomes a contact part with the convex part
The all-around curl so as to generate spring properties in the all-around curl
The notch is formed at the corner of the ring.
Air conditioner outdoor unit. 2. An outer peripheral portion of an outlet of a front plate is stepped in a square shape.
Squeezing with a part, a square flange in contact with this step
The fan casing with a section is colored black.
And a fan guard on the front of the fan casing.
Provided between the fan guard and the front plate.
Air conditioning characterized by fixing and sandwiching
Outdoor unit of Japanese machine. 3. One end of a plate-shaped motor support is provided with a professional
Support the fan motor connected with the propeller fan, and
Install on the bottom plate and fix the fan motor with cantilever support
Motor support in outdoor units
G bend the bottom part of L
Forming the foot on the front of the bottom and the side of the motor support
In addition, a holding tool integrally formed by spots etc. is provided,
Extend the front side of the holder to the flange of the bottom plate
Fold it into an L-shape and place this L-shaped front side forward.
And the upper surface of the holder is on the motor support side.
Characterized by being formed so as to rise obliquely
The outdoor unit of the harmonizer.