阅读说明：本技术 制冷机室外单元 (Outdoor unit of refrigerator ) 是由 平和大树 小池史朗 神谷成毅 于 2018-07-24 设计创作，主要内容包括：本发明的课题在于提供一种在接触配电箱等配电部时,便于拆下面板的制冷机室外单元。室外单元(1),由于前板(24)分为第1面板(24a)和第2面板(24b),因此,在初始设置或进行维护的维护人员接触配电箱(6)时,第2面板(24b)可以保持安装在壳体(2)的原来位置上的状态,只从壳体(2)上将第1面板(24a)拆下。其结果是仅拆下第1面板(24a)的状态下,即可接触配电箱(6)。但是,传统上为拆下多片面板的构成,虽然各面板的重量减轻,但总重量增大,同时,单个面板数量增加,导致维护人员的拆卸作业复杂。而这种室外单元(1),则无需上述复杂的拆卸方法,能够缩短作业时间,提高作业效率。(The invention provides a refrigerator outdoor unit which is convenient for detaching a panel when contacting a power distribution part such as a distribution box. In the outdoor unit (1), the front plate (24) is divided into a 1 st panel (24a) and a 2 nd panel (24b), so that when a maintainer who initially sets or performs maintenance touches the distribution box (6), the 2 nd panel (24b) can be detached from the housing (2) only by detaching the 1 st panel (24a) from the housing (2) while keeping the state of being attached to the housing (2). As a result, the electric distribution box (6) can be accessed only in the state that the 1 st panel (24a) is detached. However, in the conventional structure of removing a plurality of panels, although the weight of each panel is reduced, the total weight is increased, and the number of individual panels is increased, which makes the removal work by maintenance personnel complicated. The outdoor unit (1) does not need the complicated disassembling method, thereby shortening the operation time and improving the operation efficiency.)

1. A refrigerator outdoor unit is provided with: a fan (5) for generating an air flow through the heat exchanger and discharging the air upward; a power distribution unit (6) for accommodating the electronic component group; and a housing (2) having a panel (24) provided at a predetermined position in opposition to the power distribution section (6), wherein the panel (24) is divided into at least a 1 st panel (24a) and a 2 nd panel (24b) in a left-right direction as viewed from the front, wherein the 1 st panel (24a) is opposed to at least a part of the power distribution section (6), and wherein the 1 st panel (24a) is detachable in a state in which the 2 nd panel (24b) is attached to the housing (2).

2. The refrigerator outdoor unit according to claim 1, wherein a lateral width of at least a part of the 1 st panel (24a) is larger than a lateral width of the power distribution portion (6) viewed from the 1 st panel (24a) side.

3. The refrigerator outdoor unit according to claim 1 or claim 2, wherein the 1 st panel (24a) has a 1 st region and a 2 nd region which are different in height position and lateral width, the 1 st region is located above the 2 nd region, and the lateral width of the 1 st region is larger than the lateral width of the 2 nd region.

4. The refrigerator outdoor unit according to any one of claim 1 to claim 3, wherein the 1 st panel (24a) has, as viewed from the front, an inclined portion (241) whose width is narrower as the height position is lower.

5. The refrigerator outdoor unit of any one of claim 1 to claim 4, at least a portion of the 1 st panel (24a) being coincident with the 2 nd panel (24 b).

6. The refrigerator outdoor unit according to any one of claim 1 to claim 5, wherein the 1 st panel (24a) has a flat surface portion (241a) that faces vertically downward or obliquely downward.

7. The refrigerator outdoor unit according to any one of claims 1 to 6, wherein the casing (2) further has a pillar (51) disposed at least at one corner, and an end portion of the 1 st panel (24a) is flush with an outer contour surface (51c) of the pillar (51) when viewed from the front, and projects laterally from the outer contour surface (51 c).

8. The refrigerator outdoor unit according to any one of claim 1 to claim 7, wherein the casing (2) further has a pillar (51) disposed at least at one corner, and an end of the 1 st panel (24a) faces a corner of the pillar (51) with a predetermined gap therebetween.

9. The refrigerator outdoor unit according to any one of claim 1 to claim 8, the 1 st panel (24a) having a side end portion (247) extending in a depth direction.

10. The refrigerator outdoor unit according to any one of claim 1 to claim 9, the 1 st panel (24a) having a hooking portion (201) hooked on the housing (2).

11. The refrigerator outdoor unit according to any one of claims 1 to 9, wherein a plurality of panels including the 1 st panel (24a) have hooks (201,202) hooked on the casing (2)

The hooking portions (201,202) of each panel are configured differently.

Technical Field

The present invention relates to a refrigerator outdoor unit, and more particularly to an outdoor unit that discharges air upward from a ceiling surface.

Background

Specifically, in an outdoor unit of an air conditioning apparatus shown in patent document 1 (japanese patent application laid-open No. 2007-263386), when it is necessary to contact a distribution box during initial installation or maintenance after installation, an operator needs to remove a panel fixed to a casing by screws at a position facing the distribution box and then perform maintenance or other work.

Disclosure of Invention

Problems to be solved by the invention

However, since the panel is wide and heavy, and both ends are surrounded by the pillars of the housing, the panel is not easily removed, and the work burden is not small.

The invention provides a refrigerator outdoor unit which is convenient for detaching a panel when contacting a power distribution part such as a distribution box.

Means for solving the problems

The refrigerator outdoor unit according to claim 1 of the present invention includes a fan, a power distribution unit, and a casing. The fan serves to generate an air flow through the heat exchanger and discharge the air upward. The power distribution part is used for accommodating the electronic device group. The housing has a panel disposed at a predetermined position facing the power distribution portion. The panels are divided into at least 1 st panel and 2 nd panel in the right and left direction as viewed from the front. The 1 st panel faces at least a part of the power distribution portion, and the 1 st panel is detachable in a state where the 2 nd panel is attached to the housing.

In this outdoor unit, since the panels are divided into the 1 st panel and the 2 nd panel, when an operator who performs initial setting or maintenance touches the power distribution unit, the 2 nd panel can be detached from only the 1 st panel while maintaining the state of being attached to the housing. As a result, the power distribution portion can be accessed only in the state where the 1 st panel is detached. However, conventionally, in a configuration of detaching a plurality of panels, although the weight of each panel is reduced, the total weight is increased, and at the same time, the number of individual panels is increased, resulting in a complicated detaching method. The outdoor unit does not need the complicated disassembling method, thereby shortening the operation time and improving the operation efficiency.

A refrigerator outdoor unit according to claim 2 of the present invention is the refrigerator outdoor unit according to claim 1, wherein at least a part of the 1 st panel has a lateral width larger than a lateral width of the power distribution portion as viewed from the 1 st panel side.

Since the outdoor unit of this type can contact the power distribution portion by simply removing the 1 st panel from the casing, the operability at the time of initial installation and maintenance after installation can be improved.

The refrigerator outdoor unit according to claim 3 of the present invention is the refrigerator outdoor unit according to claim 1 or 2, wherein the 1 st panel has the 1 st region and the 2 nd region which are different in height position and lateral width. The 1 st region is located above the 2 nd region, and the 1 st region has a larger lateral width than the 2 nd region.

The outdoor unit forms a downward surface and an inclined surface at the transition position from a wider 1 st area to a narrower 2 nd area, and the surface can be used as a handle when the 1 st panel is lifted upwards.

A refrigerator outdoor unit according to claim 4 of the present invention is the refrigerator outdoor unit according to any one of claims 1 to 3, wherein the 1 st panel has an inclined portion whose lateral width is narrower as a height position is lower, as viewed from the front.

Since the outdoor unit has the inclined portion oriented obliquely downward, when the operator detaches the 1 st panel from the housing, the operator can catch the inclined portion and lift it upward, which facilitates the operation.

The refrigerator outdoor unit according to claim 5 of the present invention is the refrigerator outdoor unit according to any one of claims 1 to 4, wherein at least a part of the 1 st panel overlaps the 2 nd panel.

In the outdoor unit, when an operator removes the 1 st panel from the casing, the operator inserts a finger into a gap between the non-overlapping portions of the 1 st panel and the 2 nd panel and lifts the finger upward more easily than gripping the overlapping portion of the 1 st panel and the 2 nd panel. Specifically, a recess including "overlapped portion" and "misaligned portion" of the 1 st panel and the 2 nd panel is formed, and the operator can insert fingers into the "misaligned portion" of the recess and then hold a part of the recess with a hand. As a result, the operability is improved.

A refrigerator outdoor unit according to claim 6 of the present invention is the refrigerator outdoor unit according to any one of claims 1 to 5, wherein the 1 st panel has a flat surface portion oriented vertically or obliquely downward.

In this kind of outdoor unit, when the operator dismantled 1 st panel from the casing, the plane portion that the finger can catch orientation vertical below or below to rise upwards, is more convenient for operate.

The refrigerator outdoor unit according to claim 7 of the present invention is the refrigerator outdoor unit according to any one of claims 1 to 6, wherein the casing further has a pillar disposed at least at one corner. The end of the 1 st panel is on the same plane as the outer contour surface of the pillar as viewed from the front of the housing, and projects laterally beyond the outer contour surface.

In the conventional products, the end of the panel is surrounded by the pillar, and the operator cannot hold the end of the panel and can pull it out only by finger belly, so that it is difficult to remove the panel from the housing.

In the outdoor unit of the present invention, the end of the 1 st panel is flush with the outer contour surface of the column and protrudes laterally beyond the outer contour surface, so that the operator can easily grip the end of the panel and easily detach the panel from the housing.

A refrigerator outdoor unit according to claim 8 of the present invention is the refrigerator outdoor unit according to any one of claims 1 to 7, wherein the casing further has a pillar disposed at least at one corner. The end of the 1 st panel faces the corner of the pillar with a predetermined gap.

When the 1 st panel is detached from the housing, the outdoor unit can ensure the space for the fingers to hook the end part of the 1 st panel, so that the operator can hold the 1 st panel conveniently.

A refrigerator outdoor unit according to a 9 th aspect of the present invention is the refrigerator outdoor unit according to any one of the 1 st to 8 th aspects, wherein the 1 st panel has a side end portion extending in a depth direction.

When an operator detaches the 1 st panel from the shell, the operator can hook the side end part to lift the 1 st panel upwards by fingers, so that the operation is convenient.

A refrigerator outdoor unit according to a 10 th aspect of the present invention is the refrigerator outdoor unit according to any one of the 1 st to 9 th aspects, wherein the 1 st panel has a hook portion to be hooked on the housing.

In the outdoor unit, the hook part can play a role of positioning the 1 st panel, and the error assembly can be prevented.

A refrigerator outdoor unit according to an 11 th aspect of the present invention is the refrigerator outdoor unit according to any one of the 1 st to 9 th aspects, wherein each of the plurality of panels including the 1 st panel has a hook portion to be hooked to the housing. Further, the hook portion configuration differs for each panel.

In such an outdoor unit, even if the panels are different, there is a possibility of erroneous assembly due to the similar shapes, and therefore, erroneous assembly can be prevented by adopting the arrangement of the hook portions for positioning at the time of assembly, for example, by adopting different intervals.

Effects of the invention

The refrigerator outdoor unit according to claim 1 of the present invention is characterized in that the panel is divided into the 1 st panel and the 2 nd panel, and therefore, when an operator who initially sets or performs maintenance touches the power distribution unit, the 2 nd panel can be attached to the casing while being kept in a state where it is detached from the casing only by the 1 st panel. As a result, the power distribution portion can be accessed only in the state where the 1 st panel is detached. However, conventionally, in a configuration of detaching a plurality of panels, although the weight of each panel is reduced, the total weight is increased, and at the same time, the number of individual panels is increased, resulting in a complicated detaching method. The outdoor unit does not need the complex disassembly method, thereby shortening the operation time and improving the operation efficiency.

In the refrigerator outdoor unit according to claim 2 of the present invention, since the power distribution portion can be accessed only by detaching the 1 st panel from the casing, the operability at the time of initial installation and maintenance after installation can be improved.

The refrigerator outdoor unit according to claim 3 of the present invention, wherein a downward surface and an inclined surface are formed at a position where the region transitions from the 1 st region, which is wide, to the 2 nd region, which is narrow, and the downward surface can be used as a handle when the 1 st panel is lifted upward.

In the refrigerator outdoor unit according to claim 4 of the present invention, since the inclined portion is oriented obliquely downward, when the operator detaches the 1 st panel from the casing, the operator can catch the inclined portion and lift it upward, which facilitates the operation.

In the refrigerator outdoor unit according to claim 5 of the present invention, when the operator detaches the 1 st panel from the casing, the operator inserts a finger into a gap between the 1 st panel and the 2 nd panel which do not overlap each other, and lifts the panel more easily than gripping the overlapping portion between the 1 st panel and the 2 nd panel. Specifically, a recess including "overlapped portion" and "misaligned portion" of the 1 st panel and the 2 nd panel is formed, and the operator can insert fingers into the "misaligned portion" of the recess and then hold a part of the recess with a hand. As a result, the operability is improved.

In the refrigerator outdoor unit according to claim 6 of the present invention, when the operator detaches the 1 st panel from the casing, the operator can lift the panel upward by hooking the finger on the flat surface portion oriented vertically downward or obliquely downward, which is more convenient to operate.

In the refrigerator outdoor unit according to claim 7 of the present invention, since the end portion of the 1 st panel is flush with the outer contour surface of the pillar and projects laterally from the outer contour surface, it is easy for the operator to hold the end portion of the panel and detach the panel from the casing.

In the refrigerator outdoor unit according to claim 8 of the present invention, when the 1 st panel is detached from the casing, a space for the operator to grasp the 1 st panel can be secured by fingers.

The refrigerator outdoor unit according to claim 9 of the present invention, wherein when the operator detaches the 1 st panel from the casing, the operator can lift the 1 st panel upward with his or her fingers catching the side end portion, thereby facilitating the operation.

The refrigerator outdoor unit according to claim 10 of the present invention, wherein the hook portion can function to position the 1 st panel, and erroneous assembly can be prevented.

The refrigerator outdoor unit according to claim 11 of the present invention is characterized in that, even if the panels are different, there is a possibility of erroneous assembly due to the similar shapes, and therefore, erroneous assembly can be prevented by adopting the arrangement of the hook portions for positioning at the time of assembly, for example, by adopting different intervals.

Drawings

Fig. 1 is a configuration diagram of a refrigerator including an outdoor unit according to an embodiment of the present invention.

Fig. 2 is a perspective view of the outdoor unit when viewed from an angle at which a front plate and a right side plate of the outdoor unit are visible. Fig. 3 is a perspective view of the outdoor unit when viewed from the left side plate, the rear plate, and the upper column of the outdoor unit.

Fig. 4 is a perspective view of the 1 st and 2 nd panels of the front plate.

Fig. 5 is an enlarged perspective view of the inclined portion.

Fig. 6 is a perspective view of the upper part of the front plate from the inside.

Fig. 7 is a perspective view of the upper part of the housing positioned at the upper part of the front plate.

Fig. 8A is a perspective view of the 1 st leg securing the 1 st panel.

Fig. 8B is a partial cross-sectional view of the 1 st panel and the 1 st pillar after cutting the 1 st pillar of fig. 8A in a horizontal plane. Fig. 9 is a perspective view of the outdoor unit after the 1 st panel is detached from the housing.

Fig. 10 is a table showing the relationship between the shape of the outdoor heat exchanger and the shape of the front plate.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. The following embodiments are specific examples of the present invention, and do not limit the technical scope of the present invention.

(1) Construction of the refrigerator 10

First, before describing the outdoor unit, a schematic configuration of a refrigerator including the outdoor unit will be described.

Fig. 1 is a configuration diagram of a refrigerator 10 including an outdoor unit 1 according to an embodiment of the present invention. In fig. 1, a refrigerator 10 is a multipurpose air conditioner for a building, and a plurality of indoor units 3 are connected in parallel to 1 or a plurality of outdoor units 1.

The refrigerant circuit of the refrigerator 10 is mainly constituted by connecting a compressor 11, a four-way valve 12, an outdoor heat exchanger 13, an outdoor expansion valve 14, an indoor expansion valve 15, and an indoor heat exchanger 16 in this order, and forms a vapor compression refrigeration cycle.

The outdoor unit 1 includes a compressor 11, a four-way valve 12, an outdoor heat exchanger 13, and an outdoor expansion valve 14, and the indoor unit 3 includes an indoor expansion valve 15 and an indoor heat exchanger 16.

The four-way valve 12 and the indoor heat exchanger 16 are connected by a gas-side refrigerant connection pipe 17a, and the outdoor expansion valve 14 and the indoor expansion valve 15 are connected by a liquid-side refrigerant connection pipe 17 b.

The refrigerant connection pipes 17a and 17b are disposed between the outdoor unit 1 and the indoor units 3. The outdoor unit 1 is also provided with an accumulator and other accessories, and illustration thereof is omitted here.

At the terminal end of the internal refrigerant circuit of the outdoor unit 1, a gas-side isolation valve 18 and a liquid-side isolation valve 19 are provided. The gas-side isolation valve 18 is disposed on the four-way valve 12 side, and the liquid-side isolation valve 19 is disposed on the outdoor expansion valve 14 side. The gas side isolation valve 18 is connected to a gas side refrigerant connection pipe 17a, and the liquid side isolation valve 19 is connected to a liquid side refrigerant connection pipe 17 b. The isolation valves 18 and 19 are closed when the outdoor unit 1 or the indoor unit 3 is installed. The isolation valves 18 and 19 are opened after the gas-side refrigerant connection pipe 17a and the liquid-side refrigerant connection pipe 17b are connected to the isolation valves 18 and 19, respectively, by installing the units 1 and 3 on site.

The refrigerant circuit of the refrigerator 10 shown in fig. 1 is a simplified version of an actual circuit. For example, the actual compressor 11 is often a combination of a variable capacity inverter compressor whose rotation number is controlled by an inverter and a constant capacity compressor whose opening/closing is controlled to a constant capacity.

The outdoor unit 1 is provided with an outdoor fan 5 for bringing the outdoor heat exchanger 13 into contact with air and promoting heat exchange between the refrigerant and the air.

(2) Operation of refrigerator 10

The operation of the refrigerator 10 will be described below.

First, during the cooling operation, the four-way valve 12 is kept in the state shown by the solid line in fig. 1. The high-temperature and high-pressure gas refrigerant discharged from the compressor 11 flows into the outdoor heat exchanger 13 through the four-way valve 12, exchanges heat with outdoor air, and is condensed and liquefied. The liquefied refrigerant passes through the outdoor expansion valve 14 fully opened and flows into each indoor unit 3 through the liquid-side refrigerant connection pipe 17 b. In the indoor unit 3, the refrigerant is decompressed to a predetermined low pressure by the indoor expansion valve 15, and further exchanges heat with the indoor air by the indoor heat exchanger 16 to be evaporated. The indoor air cooled by the evaporation of the refrigerant is blown into the room by the indoor fan 9, thereby cooling the room. The vaporized refrigerant evaporated in the exterior heat exchanger 16 is returned to the exterior unit 1 through the gas-side refrigerant connection pipe 17a, and is sucked into the compressor 11.

Meanwhile, during the air-warming operation, the four-way valve 12 maintains a state shown by a broken line in fig. 1. The high-temperature and high-pressure gas refrigerant discharged from the compressor 11 flows into the indoor heat exchangers 16 of the respective indoor units 3 through the four-way valve 12, exchanges heat with indoor air, and is condensed and liquefied. The indoor air heated by the condensation of the refrigerant is blown into the room by the indoor fan, and the room is heated. The refrigerant liquefied in the indoor heat exchanger 16 is returned from the fully opened indoor expansion valve 15 to each outdoor unit 1 through the liquid-side refrigerant connection pipe 17 b. The refrigerant returning to the outdoor unit 1 is decompressed to a predetermined low pressure by the outdoor expansion valve 14, and further exchanges heat with outdoor air by the outdoor heat exchanger 13 to be evaporated. The refrigerant evaporated and gasified by the exterior heat exchanger 13 is sucked into the compressor 11 through the four-way valve 12.

In any case, regardless of the cooling operation and the heating operation, the indoor expansion valve 15 of the stopped indoor unit 3 is substantially closed, and almost no refrigerant flows through the indoor heat exchanger 16 of the indoor unit 3.

(3) Construction of outdoor unit

Fig. 2 is a perspective view of the outdoor unit 1 when viewed from an angle at which the front plate 24 and the right plate 25 of the outdoor unit 1 are visible. Fig. 3 is a perspective view of the outdoor unit 1 as viewed from an angle at which the left side plate 26, the rear plate 27, and the upper stay 28 of the outdoor unit are visible.

In fig. 2 and 3, the housing 2 is formed in a substantially rectangular parallelepiped shape by a front plate 24, a right side plate 25, a left side plate 26, a rear plate 27, an upper column 28, and a bottom plate 29.

In the present embodiment, the outdoor heat exchanger 13 is disposed along the right side plate 25, the left side plate 26, and the rear plate 27.

The front plate 24 is composed of a 1 st panel 24a and a 2 nd panel 24b, and is fixed to the right side plate 25 and the left side plate 26 by screws after being positioned on the housing 2. The detailed structure of the front plate 24 will be described later.

The regions of the right and left side plates 25, 26 facing the outdoor heat exchanger 13 serve as air inlet openings.

The rear plate 27 is fixed to the right and left side plates 25, 26 by screws. The area of the rear plate 27 facing the outdoor heat exchanger 13 serves as an air introduction opening.

The upper column 28 has a top plate structure formed by the right side plate 25 and the left side plate 26. At the same time, a rotatable fan 5 is disposed at an upper portion of the casing 2. The fan 5 is surrounded by a bell mouth 5 a. A lattice-shaped mild steel fan cover 28a is attached to the upper side of the upper stay 28 so as to cover the opening. The fan 5 is driven to rotate by a fan motor (not shown) disposed below the fan.

(4) Detailed structure of front plate 24

When the front plate 24 is viewed from the front (hereinafter, referred to as front view), the 1 st panel 24a and the 2 nd panel 24b are attached to the housing 2 side by side in the left-right direction as viewed from the front, and a part of the regions adjacent to each other overlap in the thickness direction, as shown in fig. 2.

(4-1) No. 1 Panel 24a

The 1 st panel 24a constitutes a right side portion of the front panel 24 as viewed from the front. The 1 st panel 24a has a 1 st region 24aa and a 2 nd region 24 ab. The 1 st region 24aa is located at a position above the 2 nd region 24 ab. The width of the 1 st region 24aa is larger than the width of the 2 nd region 24 ab.

Fig. 4 is a perspective view of the 1 st panel 24a and the 2 nd panel 24 b. In fig. 4, the 1 st region 24aa occupies the upper side, being located further above the height position from the lower end of the 1 st panel 24a to about 45% of the entire length L of the 1 st panel 24 a.

Further, the lateral width gradually approaches the lateral width of the 2 nd region 24ab from the lower end of the 1 st panel 24a to the lower position of the height position of about 56% of the entire length L of the 1 st panel 24a, and the lateral width becomes narrower as the height position is lowered. This portion (the portion shown in hatched lines in fig. 4) is referred to as the transition region 24ac of the 1 st region 24 aa.

The transition region 24ac is inclined from the left end toward the right end in front view, and therefore, the width becomes narrower below the height position. Therefore, the left end of the transition region 24ac is the inclined portion 241.

The inclined portion 241 is located at a region lower than the center of the 1 st panel 24a or at a region upper than the center, which is a position where the maintenance worker can easily lift up the 1 st panel 24a from below by hand, and can be used as a "handle" when removing the 1 st panel 24a from the housing 2.

Fig. 5 is an enlarged perspective view of the inclined portion 241. In fig. 5, the left end of the transition region 24ac in the inclined portion 241 is bent in the depth direction (plate thickness direction). Therefore, the inclined portion 241 has an inclined surface 241a directed obliquely downward.

Of course, the left end face of the transition region 24ac may be formed as an inclined surface without bending. However, when the maintenance worker lifts up the 1 st panel 24a using the inclined portion 241 as a "handle", the side having a large area of the inclined portion 241 gives a small pressure to the hand and a feeling of pressure is light, and therefore, it is preferable that the left end of the transition region 24ac is bent in the depth direction (plate thickness direction).

The left end portion of the 1 st panel 24a except for the inclined portion 241 is bent in the depth direction as shown in fig. 4, and then bent in the left direction to form an L-shape. The L-shaped portion extending leftward is referred to as a 1 st flange 243.

Meanwhile, the edge of the inclined portion 241 is not on the same plane as the 1 st flange 243, and a step of a height s is provided as shown in fig. 5.

(4-2) No. 2 Panel 24b

As shown in fig. 2, the 2 nd panel 24b constitutes a left side portion of the front panel 24 as viewed from the front. The 2 nd face plate 24b has a 1 st area 24ba and a 2 nd area 24 bb. The 1 st region 24ba is located above the 2 nd region 24 bb.

Further, as shown in fig. 4, since the right end shape of the 2 nd surface plate 24b is formed along the left end shape of the 1 st surface plate 24a, the 1 st region 24ba has a smaller lateral width than the 2 nd region 24 bb.

As a result, the 1 st region 24ba occupies the upper side, which is higher than the height position from the lower end of the 2 nd surface plate 24b to about 56% of the entire length L of the 2 nd surface plate 24 b.

Further, since the right end is inclined downward away from the left end in front view from the height position of the lower end of the 2 nd face plate 24b to about 50% of the entire length L of the 2 nd face plate 24b, the width is wider as the height position is lower. The inclined portion is an inclined portion 242 facing the inclined portion 241 of the 1 st panel 24 a.

The right end portion of the 2 nd panel 24b is bent in the depth direction as shown in fig. 4, and then bent in the right direction to form an L shape. The portion of the L extending to the right is referred to as a 2 nd flange 244.

(4-3) the area of coincidence of the 1 st panel 24a and the 2 nd panel 24b

The 2 nd panel 24b is mounted on the housing 2 before the 1 st panel 24 a. When the 1 st panel 24a is attached, the 2 nd flange 244 of the 2 nd panel 24b is positioned on the deep side, and the 1 st flange 243 of the 1 st panel 24a is positioned on the near side, so that they are overlapped in the plate thickness direction. This overlap region is referred to as overlap region 240.

The overlapping region 240 extends vertically downward from the upper end of the front plate 24, descends diagonally downward to the right smoothly in the middle, and then extends vertically downward smoothly.

As shown in fig. 5, since the portion corresponding to the inclined portion 241 is not originally formed with a flange on the 1 st panel 24a side, a height difference of the plate thickness t of the 1 st flange 243 can be formed between the 2 nd flange 244 and the 1 st flange 243.

Further, as shown in fig. 5, the edge 241b of the inclined portion 241 is not flush with the front surface side plane 243a of the 1 st flange 243, and therefore has a step of a height s. Therefore, if a plane including the overlapping surfaces of the 1 st flange 243 and the 2 nd flange 244 is used as a reference plane, a large gap "s + t" is formed between the edge 241b of the inclined portion 241 and the reference plane.

This gap "s + t" can be used as a gap for inserting a finger when the maintenance worker uses the inclined portion 241 as a handle. In the present embodiment, the plate thickness t is 0.8mm, the height difference s is 2mm, and the gap "s + t" is 2.8 mm.

(4-4) positioning of 1 st Panel 24a and 2 nd Panel 24b

Fig. 6 is a perspective view of the upper portion of the front plate 24 as viewed from the inside. Fig. 7 is a perspective view of the upper portion of the housing 2 positioned above the front plate 24 of fig. 6.

In fig. 6, the upper end portion of the 1 st panel 24a is bent in the depth direction. On the end face of the upper end portion thereof, a 1 st claw 201 protrudes vertically downward from a predetermined 2. Similarly, the upper end portion of the 2 nd panel 24b is bent in the depth direction. A 2 nd claw 202 protrudes vertically downward from a predetermined 2 position on the end surface of the upper end portion thereof. The interval of the 21 st claws 201 of the 1 st plate 24a is different from the interval of the 2 nd claws 202 of the 2 nd plate 24 b.

In fig. 7, 4 protruding ridges 210 are formed facing forward on the upper end of the front surface of the housing 2. Each of the protrusions 210 has a hole 210a for fitting the claw.

Since one end on the near side in fig. 7 is the right end of the case 2 when viewed from the front, the ridge portion 210 from the near side to the 2 nd in fig. 7 corresponds to the 1 st claw 201 of the 1 st panel 24 a. The protrusion 210 from the near side to the 2 nd protrusion in fig. 7 is referred to as a 1 st protrusion 211.

Since the depth side end in fig. 7 is the left end of the case 2 when viewed from the front, the ridge portion 210 from the depth side to the 2 nd in fig. 7 corresponds to the 2 nd claw 202 of the 2 nd panel 24 b. The ridge portion 210 extending from the depth of fig. 7 to the 2 nd ridge portion 212 is referred to as a 2 nd ridge portion.

The interval of the holes 211a of the 21 st protuberances 211 is the same as the interval of the 21 st claws 201, and the interval of the holes 212a of the 2 nd protuberances 212 is the same as the interval of the 2 nd claws 202.

Therefore, the 21 st claws 201 of the 1 st panel 24a are always positioned by the holes 211a of the 21 st raised parts 211 of the housing 2. Similarly, the 2 nd claw 202 of the 2 nd panel 24b must be positioned through the hole 212a of the 2 nd raised part 212 of the housing 2.

(5) Positional relationship between the 1 st panel 24a and the pillar 51

As shown in fig. 2 and 3, support columns 51, 52, 53, and 54 are provided at 4 corners extending in the vertical direction of the housing 2, respectively, to support the housing 2. The support columns 51, 52, 53, 54 are formed by sheet metal bending.

In the present embodiment, the front right pillar is referred to as a 1 st pillar 51, the front left pillar is referred to as a 2 nd pillar 52, the rear right pillar is referred to as a 3 rd pillar 53, and the rear left pillar is referred to as a 4 th pillar 54, as viewed from the front plate 24.

The 1 st support 51 and the 4 th support 54 have the same shape, the 2 nd support 52 and the 3 rd support 53 have the same shape, and the 1 st support 51 and the 2 nd support 52 have a line-symmetrical shape. The shape of the support will be described below by taking the 1 st support 51 as an example.

Fig. 8A is a perspective view of the 1 st strut 51 to which the 1 st panel 24a is fixed. Fig. 8B is a partial cross-sectional view of the 1 st panel 24a and the 1 st column 51 of fig. 8A taken along the horizontal plane after the 1 st column 51 is cut.

In fig. 8A and 8B, the 1 st support 51 has 8 vertical surfaces extending in the longitudinal direction (vertical direction). Among the 8 vertical surfaces, a fixing surface 51a, a corner surface 51b, and an outer contour surface 51c, which play a main role, are included.

The fixing surface 51a is disposed to face the 1 st panel 24a, and the 1 st panel 24a is fixed.

The corner surface 51b is adjacent to the fixing surface 51a and intersects the fixing surface 51a at 45 °. As shown in fig. 8A and 8B, since the end 245 of the 1 st panel 24a is formed with the side end 247 extending in the depth direction, the corner surface 51B has a function of securing the gap G between the corner surface 51B and the side end 247 of the 1 st panel 24a when the end 245 of the 1 st panel 24a is fixed to the fixed surface 51 a. The gap G is used for inserting a finger when the maintenance person holds the 1 st panel 24 a. In the present embodiment, the gap G is set to about 4 mm.

The outer contour surface 51c is adjacent to the corner surface 51b and forms an angle of 90 ° with the fixing surface 51 a. In the present embodiment, as seen from the front in fig. 2, the 1 st panel 24a is fixed as follows: the end portion of the 1 st panel 24a is flush with the outer contour surface 51 c. Of course, the end of the 1 st panel 24a may also project laterally beyond the outer contour surface 51 c.

The 1 st pillar 51 further includes a horizontal surface 51d formed by bending the upper ends of the fixed surface 51a, the corner surface 51b, and the outer contour surface 51c inward by 90 °. The horizontal surface 51d is loaded with components such as the fan 5 and the bell mouth 5a disposed at the upper portion of the casing 2. In addition, a protrusion 51e is provided on the horizontal surface 51d for positioning when loading the assembly.

(6) Positional relationship between No. 1 Panel 24a and distribution Box 6

Fig. 9 is a perspective view of the outdoor unit 1 after the 1 st panel 24a is detached from the casing 2. In fig. 9, the distribution box 6 is disposed in the casing 2 at a position close to the front plate 24. The distribution box 6 includes a control main board for controlling the operation of the refrigerator 10.

As shown in fig. 9, the width of the electric box 6 is not more than the width of the 2 nd area 24ab of the 1 st panel 24a, and the electric box 6 can be exposed from the front by simply removing the 1 st panel 24 a. Therefore, when the maintenance person performs initial setting or performs maintenance after installing the outdoor unit 1, the maintenance person can access the distribution box 6 by removing only the 1 st panel 24a without removing the 2 nd panel 24b, which is more convenient for operation.

(7) Characteristics of

(7-1)

Since the front panel 24 of the outdoor unit 1 is divided into the 1 st panel 24a and the 2 nd panel 24b, when a maintenance worker who performs initial installation or maintenance touches the distribution box 6, the 2 nd panel 24b can be attached to the casing 2 in the original position, and only the 1 st panel 24a can be detached from the casing 2. As a result, the electric distribution box 6 can be accessed only in a state where the 1 st panel 24a is removed. However, in the conventional structure of removing a plurality of panels, although the weight of each panel is reduced, the total weight is increased, and the number of individual panels is increased, which makes the removal work by maintenance personnel complicated. The outdoor unit 1 does not require the above-described complicated disassembling method, and can shorten the working time and improve the working efficiency.

(7-2)

Since the 1 st panel 24a has the inclined portion 241 oriented obliquely downward near the center of the left end as viewed from the front, when the maintenance worker removes the 1 st panel 24a from the housing 2, the operator can lift the inclined portion 241 upward with his or her fingers, which facilitates the operation.

(7-3)

When the maintenance worker detaches the 1 st panel 24a from the housing 2, the maintenance worker can insert a finger into the gap "s + t" between the 1 st panel 24a and the 2 nd panel 24b, which are not overlapped, to lift the panel upward, thereby facilitating the operation.

(7-4)

Since the side edge 247 of the 1 st panel 24a is flush with the outer contour surface 51c of the 1 st column 51, the maintenance worker can grip the side edge 247 of the 1 st panel 24a and can remove the 1 st panel 24a from the housing 2 more easily. The side edge 247 of the 1 st panel 24a and the outer contour surface 51c of the 1 st leg 51 are not necessarily arranged on the same plane, and may be arranged outside the outer contour surface 51 c.

(7-5)

Since a gap between the side end 247 of the 1 st panel 24a and the 1 st support post 51 can be secured by fingers catching the end face of the side end 247 of the 1 st panel 24a, when the maintenance worker detaches the 1 st panel 24a from the housing 2, the maintenance worker can insert fingers into the gap to grasp the side end 247 of the 1 st panel 24 a.

(7-6)

The 21 st claws 201 of the 1 st panel 24a and the 21 st raised parts 211 of the housing 2 position the 1 st panel 24a on the housing 2, thereby preventing misassembly.

(8) Variant examples

Fig. 10 is a table showing the relationship between the shape of the outdoor heat exchanger 13 and the shape of the front plate 24. In fig. 10, the left column shows a plan view of the outdoor heat exchanger 13 and a front view of the front plate 24 employed in the present embodiment. The middle column describes a plan view of the outdoor heat exchanger 13' employed in the modification example 1 and a front view of the front plate 24. The right column describes a plan view of the outdoor heat exchanger 13 employed in the modification example 2 and a front view of the front plate 24.

(8-1) variant example 1

As shown in the middle column of fig. 10, in modification 1, the outdoor heat exchanger 13' is longer in the lateral width direction than the outdoor heat exchanger 13 of the present embodiment, and the lateral width of the casing 2 is also large, and therefore, an auxiliary panel 24d is attached to the left side of the 1 st panel 24 a.

The height-direction total length of the auxiliary panel 24d is approximately 30% of the height-direction total length of the 1 st panel 24a, and the lower portion of the auxiliary panel 24d is open to expose the outdoor heat exchanger 13'.

In order to facilitate access to the distribution box 6, the maintenance worker can remove the 1 st panel 24a from the casing 2 by gripping the right end of the 1 st panel 24a from below the auxiliary panel 24d with the right hand and gripping the inclined portion 241 of the 1 st panel 24a with the left hand.

(8-2) variant example 2

As shown in the right column of fig. 10, in modification 2, 2 outdoor heat exchangers having different sizes (the left outdoor heat exchanger 13 ″ is smaller than the right outdoor heat exchanger 13) are arranged in parallel in the lateral direction, and therefore, the lateral width of the casing 2 is also about 2 times larger than that of the above embodiment. Therefore, a 3 rd panel 24c having a shape similar to the 2 nd and 1 st panels 24b and 24a is also required.

Since the 1 st panel 24a is arranged on the right side in front view, the right end of the 1 st panel 24a is not affected when gripped. Therefore, in order to facilitate access to the distribution box 6, the maintenance worker can remove the 1 st panel 24a from the casing 2 by gripping the right end of the 1 st panel 24a at a position free from height restriction with the right hand and gripping the inclined portion 241 of the 1 st panel 24a with the left hand.

Further, if the 1 st, 2 nd, and 3 rd panels 24a, 24b, and 24c are detached from the housing 2 and then the 1 st, 2 nd, and 3 rd panels 24a, 24b, and 24c are attached to the housing 2 again, as shown in fig. 6 and 7, the 2 st claws 201 of the 1 st panel 24a and the 2 holes 211a of the 21 st raised parts 211 of the housing 2 can be positioned, and the 2 nd, and 3 rd panels 24b, and 24c can be attached erroneously without making the correct position of the 1 st panel 24a wrong.

Possibility of industrial application

The invention can contact the distribution box only by detaching a part of the front plate, namely the 1 st panel, thereby being beneficial to reducing the operation burden of maintenance personnel and being widely applied to outdoor units.

Description of the reference numerals

1 outdoor unit

2 casing

5 Fan

6 distribution box (distribution department)

10 refrigerator

24 front panel (Panel)

24a 1 st panel

24b 2 nd panel

201 st claw (hook part)

202 nd claw (hook part)

241 inclined part

241a inclined plane (plane part)

247 side end (side end)

51 st prop (prop)

51c outer contour surface

Prior art documents

Patent documents:

patent document 1: japanese laid-open patent publication No. 2007-263386