WO2018025325A1 - Outdoor unit, air conditioning device, and method for manufacturing outdoor unit handle - Google Patents

Abstract

[Problem] The present invention provides an outdoor unit equipped with an integrally molded, easy-to-hold handle having high dimensional accuracy, an air conditioning device, and a method for manufacturing an outdoor unit handle. [Solution] The outdoor unit according to the present invention is provided with a housing and a handle provided on a corner portion of the housing and having an L shape in plan view. The handle includes an attaching frame portion attached to the housing, and a grip portion which is integrally formed with the attaching frame portion and internally formed with a space portion. The space portion is configured such that the volume increases from a long-side direction of the handle toward a short-side direction thereof.

Description

Outdoor unit, air conditioner, and outdoor unit handle manufacturing method

The present invention relates to an outdoor unit having a handle, an air conditioner having the outdoor unit, and a method of manufacturing the handle of the outdoor unit.

Conventionally, the outdoor unit is generally provided with a handle used when the outdoor unit is transported. Here, when it is assumed that the outdoor unit is transported by two people, as described in Patent Document 1, the handles of the outdoor unit may be arranged at the same height at the four corners of the housing. desirable. In general, the casing of the outdoor unit is divided into a blower chamber and a machine chamber by a partition plate (separator) extending in the vertical direction.

In addition, among conventional heat exchangers, there is a heat exchanger that secures a handle space by utilizing a step space between rows that is generated when a plurality of rows of heat exchangers are bent into an L shape. Yes (see, for example, Patent Document 2).
Step space between rows means that in a flat state (when the heat exchanger is not bent), multiple rows of heat exchangers with the same width are bent, and the fins and tubes of the outer heat exchanger are those on the inner side. It is the space by the level | step difference which arose on the front side of the outdoor unit by carrying out outward (large circumference) rather than.

Japanese Patent Application Laid-Open No. 07-91688 JP 2010-175134 A

Usually, the parts that may interfere with the handle arranged on the machine room side are refrigerant pipes on both the front and back sides of the outdoor unit. Therefore, in the configuration as described in Patent Document 1, it is relatively easy to secure a handle space by changing the handling shape of the refrigerant pipe.
Moreover, components that may interfere with the handle arranged on the blower chamber side are heat exchangers on both the front and back sides of the outdoor unit. Therefore, in the structure as described in Patent Document 1, the handle disposed on the back side of the blower chamber side can use the space of the corner R portion of the L-shaped heat exchanger, It is relatively easy to secure.

However, in the configuration described in Patent Document 1, the handle disposed on the front side of the blower chamber side is close to the heat exchanger, and it is very difficult to secure a handle space.

In the configuration described in Patent Document 2, the space of the step between the rows of heat exchangers is not likely as a space for arranging the handles. Therefore, when the handle is disposed here, the rough shape of the handle is determined in consideration of interference between the handle and the surrounding parts. For example, as described in Patent Document 2, the handle has a shallow depth of the hand insertion portion (grip portion) and is long in the width direction of the hand insertion portion. This is because the handle is to be molded as a single piece in a limited space.

Specifically, the hand insertion part is formed on the handle using a mold slide. The working width of the mold slide for forming the hand insertion part (the space in which the mold slide can move in the vertical direction of the handle) It is necessary to secure the handle, and the handle becomes long in the vertical direction. Moreover, since it becomes the area | region where a type | mold slide operates, the bag part lower part of a handle cannot be made into a desired shape, but will become a shape depending on a type | mold slide. That is, a three-dimensional shape change cannot be applied to the lower side of the handle bag.

In such a handle, only the tip of a human finger can be hooked on the hand insertion part. Therefore, it was very difficult to hold. Further, when the bag portion of the handle is deepened, a finger allowance for the handle increases, but the mold slide cannot be pulled out, and in reality, it is difficult to mold.

As an example of means for solving this, a method of forming a handle by combining divided parts can be considered. That is, it is conceivable that the handle is not an integrally molded product.
However, as the parts are divided, there arises a new problem that the dimensional variation as the handle when the parts are combined increases.

The handle is attached by being fitted into the opening hole provided in the housing. Therefore, a claw-shaped part is provided on the handle, and this claw-shaped part is hooked on the opening of the housing, and the handle is attached to the housing. However, when the parts are assembled, the dimensions of the claw-shaped portion will vary. . If the dimensions of the claw-shaped portion vary, it may lead to problems that the claw-shaped portion does not fit into the housing, the fitted handle comes off, and the gap between the panel and the handle becomes large. If the gap between the panel and the handle becomes large, there is a possibility that a sound will be heard when the casing is shaken, or water and wind may enter from the gap. If water and wind enter, it may be a factor that hinders heat exchange.

The present invention has been made in order to solve the above-described problems. An outdoor unit, an air conditioner, and a method for manufacturing the handle of an outdoor unit, which are integrally molded, have high dimensional accuracy, and have a handle that is easy to hold. The purpose is to provide.

An outdoor unit according to the present invention includes a housing and a handle having an L shape in a plan view provided at a corner portion of the housing, and the handle includes an attachment frame portion attached to the housing, A grip portion formed integrally with the mounting frame portion and having a space portion formed therein, and the space portion is configured to increase in volume from a long side direction to a short side direction of the handle. It is what.

An air conditioner according to the present invention includes the outdoor unit described above and an indoor unit connected to the outdoor unit.

The manufacturing method of the handle of the outdoor unit according to the present invention is a manufacturing method of the handle of the outdoor unit, wherein the handle is formed in an L shape in a plan view, and the outer bending portion and the inner bending of the handle are formed. With the line connecting the parts as the central axis, the sliding direction of the mold slide is made coincident with this central axis, the mounting frame part attached to the casing of the outdoor unit, and the grip part in which the space part is formed, Are integrally formed by injection molding.

According to the outdoor unit according to the present invention, since the volume is configured to expand from the long side direction of the handle toward the short side direction and the space portion is integrally formed with the mounting frame portion,
High dimensional accuracy, easy to hold, and improved transportability.

According to the air conditioner according to the present invention, since the outdoor unit is provided, the outdoor unit is transported using the handle, and the transportability of the outdoor unit is improved.

According to the manufacturing method of the handle of the outdoor unit according to the present invention, since the line connecting the outer bent portion and the inner bent portion of the handle is the central axis, the sliding direction of the mold slide is made to coincide with the central axis. The handle having the attachment frame portion and the grip portion can be integrally formed, and the dimensional accuracy is improved.

It is a perspective view which shows the state which looked at an example of the external appearance structure of the outdoor unit which concerns on Embodiment 1 of this invention from the front side. It is an internal block diagram which shows the state which looked at the internal structure of the outdoor unit which concerns on Embodiment 1 of this invention from upper direction. It is an internal block diagram which shows the state which expanded and looked at the front side of the left side surface of the outdoor unit which concerns on Embodiment 1 of this invention from upper direction. It is a top view which shows the state which looked at the structural example of the handle attached to the outdoor unit which concerns on Embodiment 1 of this invention from upper direction. It is a front view which shows the state which looked at the structural example of the handle attached to the outdoor unit which concerns on Embodiment 1 of this invention from the front. It is the left view which shows the state which looked at the structural example of the handle attached to the outdoor unit which concerns on Embodiment 1 of this invention from the left side. It is a right view which shows the state which looked at the structural example of the handle attached to the outdoor unit which concerns on Embodiment 1 of this invention from the right side. It is a rear view which shows the state which looked at the structural example of the handle attached to the outdoor unit which concerns on Embodiment 1 of this invention from the back surface. FIG. 6 is a cross-sectional view taken along line AA in FIG. 5. FIG. 8 is a sectional view taken along line BB in FIG. It is a perspective view which shows the state which looked at the structural example of the handle attached to the outdoor unit which concerns on Embodiment 1 of this invention from the diagonal direction. It is a front view which shows the state which has arrange | positioned the sliding direction of the structural example of the handle attached to the outdoor unit which concerns on Embodiment 1 of this invention in the direction orthogonal to a paper surface. It is a top view which shows the state which looked at the structural example of the handle arrange | positioned like FIG. 12 from upper direction. It is a right view which shows the state which looked at the example of a structure of the handle arrange | positioned like FIG. 12 from the right side. It is a schematic block diagram which shows an example of the refrigerant circuit structure of the air conditioning apparatus which concerns on Embodiment 2 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the following drawings including FIG. 1, the relationship of the size of each component may be different from the actual one. Further, in the following drawings including FIG. 1, the same reference numerals denote the same or equivalent parts, and this is common throughout the entire specification. Furthermore, the forms of the constituent elements shown in the entire specification are merely examples, and are not limited to these descriptions.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing an example of an external configuration of an outdoor unit A according to Embodiment 1 of the present invention as viewed from the front side. FIG. 2 is an internal configuration diagram showing a state in which the internal configuration of the outdoor unit A is viewed from above. FIG. 3 is an internal configuration diagram illustrating a state in which the front side of the left side surface of the outdoor unit A is viewed from above. The configuration of the outdoor unit A will be described with reference to FIGS.
FIG. 2 illustrates a state in which the top panel 1 is removed from the outdoor unit A and the inside of the outdoor unit A is viewed in plan.

The outdoor unit A is used together with the indoor unit (indoor unit B shown in FIG. 15) as one configuration of the air conditioner C described in detail in the second embodiment.
The outdoor unit A is installed in a space (for example, outdoors) different from the air-conditioning target space, and has a function of supplying cold or warm heat to the indoor unit.
The indoor unit is installed in a space (for example, indoors) that supplies cold or hot air to the air-conditioning target space, and has a function of cooling or heating the air-conditioning target space with the cold or hot heat supplied from the outdoor unit A.
The outdoor unit A is connected to the indoor unit via a refrigerant pipe.

As shown in FIG. 1, the outdoor unit A has a housing 100 formed in a substantially box shape with the front surface opened by a metal panel. The housing 100 is composed of a plurality of metal panels. The housing 100 includes a top panel 1, a base 2, a front panel 3, a service panel 4, a right side panel 5, a left side panel 6, a cover panel 7, and a cover panel 8.

The top panel 1 constitutes the upper part of the housing 100 when the housing 100 is viewed from the front.
The base 2 constitutes the bottom of the housing 100 when the housing 100 is viewed from the front. The base 2 is provided with legs 2a.
The front panel 3 constitutes the front of the housing 100 when the housing 100 is viewed from the front. The front panel 3 is formed with an opening (blower), and air can flow through the opening. A fan guard 3 a is attached to the opening of the front panel 3.

The service panel 4 constitutes a part of the right side surface of the housing 100 when the housing 100 is viewed from the front. The service panel 4 is removable. By removing the service panel 4, the inside of the housing 100 can be accessed.
The right side panel 5 constitutes a part of the right side surface of the casing 100 when the casing 100 is viewed from the front. The right side panel 5 and the service panel 4 constitute the right side surface of the housing 100.

The left side panel 6 constitutes the left side surface of the housing 100 when the housing 100 is viewed from the front.
The cover panel 7 is disposed below the service panel 4 when the housing 100 is viewed from the front, and constitutes the right side surface of the housing 100.
The cover panel 8 is disposed below the right side panel 5 when the casing 100 is viewed from the front, and constitutes the right side surface of the casing 100.

As shown in FIG. 2, a back panel 20 having an opening (suction port) is formed on the back surface of the housing 100, and the back panel 20 constitutes the back surface of the housing 100.
The left side panel 6 and the back panel 20 may be integrally molded using the L-shaped panel in plan view, or the right side panel 5 and the back panel 20 may be integrally molded.

Handles 17 are provided at four corners of the housing 100, respectively. The handle 17 is used when the outdoor unit A is transported. One of the handles 17 is referred to as a handle 17-1, one of the handles 17 is referred to as a handle 17-2, and one of the handles 17 is referred to as a handle 17-3. One is referred to as a handle 17-4. Further, when there is no need to separately explain the handle 17, the handle 17 is collectively described.

The handle 17-1 is provided at a corner formed by the front panel 3 and the left side panel 6.
The handle 17-2 is provided at a corner formed by the front panel 3 and the service panel 4.
The handle 17-3 is provided at a corner formed by the back panel 20 and the right panel 5.
The handle 17-4 is provided at a corner formed by the back panel 20 and the service panel 4.

Since the handle 17 is used when the outdoor unit A is transported, it is desirable that all four handles are installed at the same height position, but the height of each installation position of the handle 17 is not particularly limited. .

The housing 100 is divided into a blower chamber 9 and a machine chamber 10 by a separator 11. The separator 11 is configured to extend in the vertical direction when installed in the housing 100.
The blower chamber 9 is positioned on the left side when the casing 100 is viewed from the front, and the machine chamber 10 is positioned on the right side when the casing 100 is viewed from the front.

In the blower chamber 9, a heat exchanger 14, a fan 15, a fan motor 16, a motor support (not shown) for fixing the fan motor, and the like are arranged.

The heat exchanger 14 functions as an evaporator during heating operation, and functions as a condenser during cooling operation. The heat exchanger 14 is bent into an L shape in plan view, and is disposed so as to be positioned on the back surface and the left side surface.
Moreover, the heat exchanger 14 is comprised by the windward side heat exchanger 14a and the leeward side heat exchanger 14b.

As shown in FIG. 3, the handle 17 is formed so that the inside is curved and the grip portion is L-shaped in plan view. Here, the inner side is a side located in the direction of the inside of the casing 100 in a state where the handle 17 is attached to the casing 100. Therefore, as shown in FIG. 3, when the handle 17 is attached to the housing 100, the handle 17 does not interfere with the heat exchanger 14. For example, even when the ends of the windward side heat exchanger 14a and the leeward side heat exchanger 14b (ends located inside the corners of the casing 100) are aligned (the chain line shown in FIG. 3), the handle 17 is There is no interference with the heat exchanger 14. The details of the handle 17 will be described with reference to FIG.

The fan 15 supplies air that is a heat exchange fluid to the heat exchanger 14. The fan 15 is driven by a fan motor 16. When the fan 15 is in operation, air is sucked into the housing 100 from the upper direction in FIG. 2 (the back side of the housing 100), and after exchanging heat with the heat exchanger 14, the bottom of FIG. It blows out in the direction (front side of the housing 100).
The fan 15 is, for example, a propeller fan having a plurality of blades, and is disposed so as to face the opening of the housing 100 on the downstream side of the heat exchanger 14 inside the blower chamber 9.

The fan motor 16 is rotationally driven in accordance with an instruction from a control device accommodated in an electrical component box provided inside the housing 100, and transmits rotational force to the fan 15.
The motor support is for supporting the fan motor 16 in the housing 100.

In the machine room 10, a compressor 12, a refrigerant pipe (not shown), an electrical component box (not shown), a pressure vessel 13 and the like are arranged.

The compressor 12 compresses and discharges the refrigerant sent from the indoor unit. The compressor 12 can be composed of, for example, a rotary compressor, a scroll compressor, a screw compressor, a reciprocating compressor, or the like. When the heat exchanger 14 functions as a condenser, the refrigerant discharged from the compressor 12 passes through the refrigerant pipe and is sent to the heat exchanger 14. When the heat exchanger 14 functions as an evaporator, the refrigerant discharged from the compressor 12 passes through the refrigerant pipe, passes through the indoor unit, and is then sent to the heat exchanger 14.

The refrigerant pipe includes a discharge pipe and a suction pipe connected to the compressor 12, and also includes a pipe connected to the heat exchanger 14.
A control device is accommodated in the electrical component box, and power is supplied to each component.
The pressure vessel 13 is provided on the suction side or the like of the compressor 12 and stores the refrigerant.

In the refrigeration cycle, the compressor 12, the heat exchanger 14, the expansion device (expansion device 65 shown in FIG. 15), and the indoor heat exchanger (indoor heat exchanger 81 shown in FIG. 15) are connected by refrigerant piping. It is composed by being done.

Here, the handle 17 will be described in detail.
FIG. 4 is a plan view showing a configuration example of the handle 17 attached to the outdoor unit A as viewed from above. FIG. 5 is a front view showing a configuration example of the handle 17 attached to the outdoor unit A as viewed from the front. FIG. 6 is a left side view illustrating a configuration example of the handle 17 attached to the outdoor unit A as viewed from the left side. FIG. 7 is a right side view showing a configuration example of the handle 17 attached to the outdoor unit A as viewed from the right side. FIG. 8 is a rear view showing a configuration example of the handle 17 attached to the outdoor unit A as viewed from the back. 9 is a cross-sectional view taken along the line AA in FIG. 10 is a cross-sectional view taken along the line BB in FIG.

As shown in FIG. 4, the handle 17 is configured in an L shape in plan view as a whole.
The outer side (design surface side) bent portion 17 a of the handle 17 is formed in an R shape in accordance with the shape of the corner portion of the housing 100.
Moreover, since the inner side of the handle 17 is curved, the inner bent portion 17b of the handle 17 is formed in an R shape.

In the following description, the longitudinal direction of the handle 17 configured in an L shape in plan view is referred to as a long side x, and the short direction is referred to as a short side y. That is, the handle 17 has an L shape in which the length of the long side x is different from the length of the short side y in plan view.
The longitudinal direction of the handle 17 is the left and right (width) direction of the housing 100 in a state in which the handle 17 is attached to the housing 100, and the short direction of the handle 17 is the handle 17 in the housing 100. It is the front-rear (depth) direction of the housing 100 in the attached state.

The handle 17 includes a resin mounting frame 51 and a grip 52 formed integrally with the mounting frame 51. And the handle 17 is attached to the opening part provided in each corner | angular part of the housing | casing 100, as shown in FIG.

The attachment frame portion 51 is a portion that is attached to the housing 100, constitutes the outer peripheral portion of the handle 17, and constitutes part of the outer surface of the housing 100 when attached to the housing 100.
Moreover, the attachment frame part 51 is comprised by planar view L-shape. Therefore, when the handle 17 is attached to the housing 100, the outer surface of the attachment frame portion 51 constitutes a part of both the adjacent surfaces (for example, the front surface and the right side surface) of the housing 100.

The grip portion 52 is located inside the housing 100 from the inside of the attachment frame portion 51 in a state where the handle 17 is attached to the housing 100, and a finger of a carrier of the outdoor unit A is inserted therein.
As shown in FIGS. 5 and 7, the grip portion 52 includes a front opening 53, a side opening 54 continuous to the front opening 53, and a space 55 continuous from the front opening 53 and the side opening 54. ,have.

The front opening 53 is formed by opening a portion located on the front surface (front surface) of the outdoor unit A in a state where the handle 17 is attached to the housing 100. Further, the length of the front opening 53 with respect to the long side x is long enough to insert four adult human fingers.
The side opening 54 is formed by opening a portion located on the side of the outdoor unit A in a state where the handle 17 is attached to the housing 100. Also, the length of the side opening 54 with respect to the short side y is such a length that two adult human fingers can be inserted.

The space 55 is configured as an L-shaped space in plan view according to the shape of the handle 17.
The volume of the space portion 55 is increased according to the L shape in plan view. That is, the space portion 55 has a shorter length on the short side y side than a depth on the long side x side so as to have a shape corresponding to the length of the finger inserted into the grip portion 52.

Further, as shown in FIGS. 9 and 10, the space portion 55 is formed so as to be directed upward (portion surrounded by a dotted line in FIGS. 9 and 10). Specifically, the upper surface and the lower surface constituting the inner side of the inner wall of the space portion 55 are inclined upward, so that the space portion 55 is directed upward.

This is because when the outdoor unit A is transported, the transporter inserts a finger into the space portion 55 from the front opening 53, and further inserts a finger toward the back of the space portion 55 with the finger bent. However, this is because the transporter can insert his / her finger to the back of the space 55 without a sense of incongruity. Specifically, the space portion 55 is shaped to match a human finger, and the human finger is placed in the natural state of the back side of the space portion 55, so that it is easy to grip and convenient for transportation.
Moreover, as shown in FIG.9 and FIG.10, the upper surface and lower surface of the back | inner side which form the space part 55 incline upward. By doing so, the finger inserted into the grip portion 52 can be easily removed. Further, dust is not easily accumulated in the space 55 even after the outdoor unit A is installed outdoors, for example.

As shown in FIG. 4, the grip portion 52 has an L shape in plan view. By setting the grip portion 52 to such a shape, a large allowance for a carrier's finger can be secured and the grip portion 52 can be easily held. When the outdoor unit A to which the handle 17 is attached is transported, the transporter inserts a finger into the grip portion 52. At this time, the carrier's finger is stored as an index finger, a middle finger, a ring finger, and a little finger from the larger volume of the space portion 55. Therefore, since the handle 17 has the grip part 52 according to the length of the human finger, the handle 17 is not only caught by the finger but also fits the carrier's finger and transports the outdoor unit A without a sense of incongruity. Is possible.

Further, the handle 17 is manufactured by integrally forming the attachment frame portion 51 and the grip portion 52. Therefore, the handle 17 has higher dimensional accuracy than that produced by combining the divided parts.

Next, manufacture of the handle 17 will be described.
FIG. 11 is a perspective view showing a configuration example of the handle 17 attached to the outdoor unit A as seen from an oblique direction. FIG. 12 is a front view showing a state in which the sliding direction of the configuration example of the handle 17 attached to the outdoor unit A is arranged in a direction orthogonal to the paper surface. FIG. 13 is a plan view showing a configuration example of the handle 17 arranged as shown in FIG. 12 as viewed from above. FIG. 14 is a right side view showing a configuration example of the handle 17 arranged as shown in FIG. 12 as viewed from the right side.

The handle 17 is manufactured using injection molding for processing a resin. As shown in FIG. 11, when the handle 17 is viewed from the mold slide direction, the inside of the grip part 52 can be visually recognized through the front opening 53 and the side opening 54. That is, if the setting is made so that the mold slide is operated in an oblique direction instead of operating the mold slide in the vertical direction, the mold slide can be pulled out. Therefore, the handle 17 forms the L-shaped grip portion 52 in plan view so that the mold slide is pulled out in an oblique direction through which the inside of the grip portion 52 can be visually recognized through the front opening 53 and the side opening 54. ing. For this reason, the handle 17 can be formed integrally.

Specifically, as shown in FIG. 12, the line connecting the outer bent portion 17a and the inner bent portion 17b is used as a central axis, and the sliding direction of the mold slide is made to coincide with this central axis. By doing so, the mold slide can be pulled out in an oblique direction. In addition, the mold parting line 17d can be formed in the direction shown in FIG. In this way, the handle 17 is integrally formed.

By obliquely removing the mold slide, as shown in FIGS. 9 and 10, it is possible to form a finger allowance that fits the carrier's finger, thereby improving ease of holding. The finger hook means the space 55 that fits the finger. If the mold slide is not removed diagonally, the mold slide cannot be removed from the space 55. Therefore, it becomes impossible to make the handle 17 by integral molding.

Also, by using the handle 17 as an integrally molded product, the dimensional accuracy is improved as compared with a product produced by combining divided parts. Therefore, according to the handle 17, the fitting property with the housing 100 is improved, and the gap is eliminated. This prevents rain and wind from entering through the gap. That is, by attaching the handle 17 to the housing 100, both ease of holding and prevention of rain and wind intrusion can be achieved.

Moreover, as shown in FIG. 3, even if the end part of the leeward side heat exchanger 14a and the end part of the leeward side heat exchanger 14b are aligned, the heat exchanger 14 and the handle 17 interfere with each other. There is nothing. Therefore, by using the handle 17, it becomes possible to mount a larger heat exchanger 14 in the same space, which can contribute to performance improvement.

When two people carry the outdoor unit A to which the handle 17 is attached, one person puts fingers of both hands on the handle 17-1 and the handle 17-4, and another person handles the handle 17-2 and the handle 17-3. Insert and hold, lift and move. At that time, for example, four fingers are inserted from the front opening 53 of the grip portion 52, the second joint to the root of the finger are inserted into the side opening 54, and the second joint to the fingertip is inserted above the space portion 55. Comes to fit. For this reason, the outdoor unit A can be transported easily and safely.

As described above, since the handle 17 is attached to the outdoor unit A, the handle 17 can be easily put on the finger, so that the transportability is improved.
Moreover, the outdoor unit A does not interfere even if the end portions of the windward side heat exchanger 14a and the leeward side heat exchanger 14b are aligned by making the grip portion 52 of the handle 17 L-shaped in plan view. . Therefore, a heat exchanger having a longer overall length can be mounted in the same space, which can contribute to performance improvement.

Further, since the lower surface forming the space portion 55 of the handle 17 is inclined in the vertical direction, it is easy to remove a finger, and dust does not easily accumulate on the handle portion after installation in the market.
Furthermore, since the handle 17 can be made with high dimensional accuracy by integral molding, the gap between the fitting portion with the housing 100 is small, and intrusion of wind and water can be prevented. For this reason, it is possible to eliminate the risk of causing a factor that hinders heat exchange or causing a short circuit due to rainwater adhering to an electrical product.
In addition, a handle 17 common to the four corners can be provided. Therefore, it is excellent in terms of design, and manufacturing cost can be reduced by using a common structure.

Embodiment 2. FIG.
FIG. 15 is a schematic configuration diagram illustrating an example of a refrigerant circuit configuration of the air-conditioning apparatus C according to Embodiment 2 of the present invention. In FIG. 15, the refrigerant flow during the cooling operation is indicated by a broken line arrow, and the refrigerant flow during the heating operation is indicated by a solid line arrow.

<Configuration of air conditioner C>
As shown in FIG. 15, the air conditioner C includes an outdoor unit A and an indoor unit B according to Embodiment 1.

The air conditioner C includes a compressor 12, an indoor heat exchanger 81, an indoor blower 82, an expansion device 65, a heat exchanger 14, a fan 15, and a flow path switching device 66. The compressor 12, the indoor heat exchanger 81, the expansion device 65, the heat exchanger 14, and the flow path switching device 66 are connected by a refrigerant pipe 90, and a refrigerant circuit is formed.
The configuration of a part of the outdoor unit A is as described in the first embodiment.

In the outdoor unit A, in addition to the compressor 12, the heat exchanger 14, and the fan 15, a flow path switching device 66 and a throttle device 65 are arranged.
The flow path switching device 66 is provided on the discharge side of the compressor 12 and switches the refrigerant flow between the heating operation and the cooling operation. Although the flow path switching device 66 is not particularly limited, for example, the flow path switching device may be configured with a four-way valve as shown in FIG.

The expansion device 65 expands the refrigerant that has passed through the indoor heat exchanger 81 or the heat exchanger 14 to reduce the pressure. The expansion device 65 may be constituted by an electric expansion valve or the like that can adjust the flow rate of the refrigerant, for example. In addition, as the expansion device 65, not only an electric expansion valve but also a mechanical expansion valve employing a diaphragm for a pressure receiving portion, a capillary tube, or the like can be applied. Further, the expansion device 65 may be arranged not in the outdoor unit A but in the indoor unit B.

In the indoor unit B, an indoor heat exchanger 81 and an indoor blower 82 are arranged.
The indoor heat exchanger 81 functions as a condenser during heating operation, and functions as an evaporator during cooling operation. The indoor heat exchanger 81 is, for example, a fin-and-tube heat exchanger, a microchannel heat exchanger, a shell-and-tube heat exchanger, a heat pipe heat exchanger, a double pipe heat exchanger, a plate heat It can be composed of an exchanger or the like. Here, the case where the indoor heat exchanger 81 is a fin-and-tube heat exchanger will be described as an example.
The indoor blower 82 is attached to the indoor heat exchanger 81 and supplies air that is a heat exchange fluid to the indoor heat exchanger 81.

<Operation of air conditioner C>
Next, operation | movement of the air conditioning apparatus C is demonstrated with the flow of a refrigerant | coolant. First, the cooling operation performed by the air conditioner C will be described. In addition, the flow of the refrigerant at the time of the cooling operation is indicated by a broken line arrow in FIG. Here, the operation of the air conditioner C will be described by taking as an example a case where the heat exchange fluid is air and the heat exchange fluid is a refrigerant.

By driving the compressor 12, a high-temperature and high-pressure gaseous refrigerant is discharged from the compressor 12. Hereinafter, the refrigerant flows according to the broken line arrows. The high-temperature and high-pressure gas refrigerant (single phase) discharged from the compressor 12 flows into the heat exchanger 14 functioning as a condenser via the flow path switching device 66. In the heat exchanger 14, heat exchange is performed between the flowing high-temperature and high-pressure gas refrigerant and the air supplied by the fan 15, and the high-temperature and high-pressure gas refrigerant is condensed to a high-pressure liquid refrigerant (single phase). )become.

The high-pressure liquid refrigerant sent out from the heat exchanger 14 becomes a two-phase refrigerant consisting of a low-pressure gas refrigerant and a liquid refrigerant by the expansion device 65. The two-phase refrigerant flows into the indoor heat exchanger 81 that functions as an evaporator. In the indoor heat exchanger 81, heat exchange is performed between the refrigerant in the two-phase state that has flowed in and the air supplied by the indoor blower 82, and the liquid refrigerant in the two-phase refrigerant evaporates, resulting in a low pressure. Becomes a gas refrigerant (single phase). By this heat exchange, the room is cooled. The low-pressure gas refrigerant sent out from the indoor heat exchanger 81 flows into the compressor 12 via the flow path switching device 66, is compressed to become a high-temperature and high-pressure gas refrigerant, and is discharged from the compressor 12 again. Thereafter, this cycle is repeated.

Next, the heating operation performed by the air conditioner C will be described. In addition, the flow of the refrigerant | coolant at the time of heating operation is shown by the solid line arrow in FIG.

By driving the compressor 12, a high-temperature and high-pressure gaseous refrigerant is discharged from the compressor 12. Hereinafter, the refrigerant flows according to solid arrows.

The high-temperature and high-pressure gas refrigerant (single phase) discharged from the compressor 12 flows into the indoor heat exchanger 81 functioning as a condenser via the flow path switching device 66. In the indoor heat exchanger 81, heat exchange is performed between the flowing high-temperature and high-pressure gas refrigerant and the air supplied by the indoor blower 82, and the high-temperature and high-pressure gas refrigerant is condensed to a high-pressure liquid refrigerant ( Single phase). By this heat exchange, the room is heated.

The high-pressure liquid refrigerant sent out from the indoor heat exchanger 81 becomes a two-phase refrigerant consisting of a low-pressure gas refrigerant and a liquid refrigerant by the expansion device 65. The two-phase refrigerant flows into the heat exchanger 14 that functions as an evaporator. In the heat exchanger 14, heat exchange is performed between the refrigerant that flows in the two-phase state and the air supplied by the fan 15, and the liquid refrigerant evaporates from the refrigerant in the two-phase state, and the low-pressure gas refrigerant. (Single phase).

The low-pressure gas refrigerant sent out from the heat exchanger 14 flows into the compressor 12 via the flow path switching device 66, is compressed to become a high-temperature and high-pressure gas refrigerant, and is discharged from the compressor 12 again. Thereafter, this cycle is repeated.

As described above, according to the air conditioner C, since the outdoor unit A is provided, a heat exchanger having a longer overall length can be mounted in the same space, and an improvement in heat exchange performance can be expected.

1 top panel, 2 base, 2a legs, 3 front panel, 3a fan guard, 4 service panel, 5 right side panel, 6 left side panel, 7 cover panel, 8 cover panel, 9 blower room, 10 machine room, 11 separator, 12 compressor, 13 pressure vessel, 14 heat exchanger, 14a upwind heat exchanger, 14b downwind heat exchanger, 15 fan, 16 fan motor, 17 handle, 17-1 handle, 17-2 handle, 17-3 handle, 17-4 handle, 17a outer bent part, 17b inner bent part, 17d parting line, 20 rear panel, 51 mounting frame part, 52 grip part, 53 front opening part, 54 side opening part, 55 space Part, 65 throttle device, 66 flow path switching device, 81 indoor heat exchanger, 82 rooms Blowers, 90 refrigerant piping, 100 a housing, A outdoor unit, B indoor unit, C air conditioner, x long side, y short side.

Claims (8)

1. A housing,
   Provided at a corner of the housing, and has a L-shaped handle in plan view,
   The handle is
   An attachment frame attached to the housing;
   A grip portion formed integrally with the mounting frame portion and having a space portion formed therein;
   The space portion is
   An outdoor unit configured to increase in volume from a long side direction to a short side direction of the handle.
2. The outdoor unit according to claim 1, wherein the upper surface and the lower surface constituting the inner wall of the grip portion are inclined upward as they go to the back side.
3. Providing the handle with four corners of the housing;
   The outdoor unit according to claim 1 or 2, wherein all the handles have a common structure.
4. The outdoor unit according to any one of claims 1 to 3, wherein the handle is made of resin.
5. A heat exchanger is provided inside the housing,
   The heat exchanger is
   It has a windward side heat exchanger and a leeward side heat exchanger, and these are configured to be bent into an L shape in plan view.
   The outdoor unit according to any one of claims 1 to 4, wherein one end of the windward side heat exchanger and the leeward side heat exchanger located inside a corner of the casing is aligned.
6. The outdoor unit according to any one of claims 1 to 5,
   An air conditioner comprising: an indoor unit connected to the outdoor unit.
7. A method of manufacturing an outdoor unit handle,
   The handle is
   It is formed in a planar view L-shape,
   With a line connecting the outer bent portion and the inner bent portion of the handle as a central axis, a sliding direction of the mold slide is made to coincide with the central axis, a mounting frame portion attached to the casing of the outdoor unit, and a space inside A method for manufacturing a handle of an outdoor unit, wherein the grip part on which the part is formed is integrally formed by injection molding.
8. The manufacturing method of the handle of the outdoor unit according to claim 7, wherein the mold slide is obliquely removed.

Images