JP7086346B2 - Soundproof structure of compressor and heat pump device equipped with it - Google Patents

Description

The present invention relates to a soundproof structure of a compressor used as a component of a heat pump device and the like, and a heat pump device provided with this structure.

A compressor for a refrigerant is incorporated in the heat pump device, and the compressor causes vibration when driven to generate noise. In addition, accumulators are connected to the compressor by piping, and these are often arranged side by side in close proximity to each other.
Therefore, conventionally, as a means for reducing the soundproofing of a compressor, there is a means for wrapping a sheet-shaped soundproofing material around the outer peripheral side surface of the compressor and the accumulator and enclosing the periphery thereof (for example, Patent Documents 1 and 1). See 2).

However, in the above-mentioned prior art, there is still room for improvement as described below.

That is, simply by wrapping the soundproofing material around the outer peripheral side surface of the compressor and the accumulator, the upper part of the soundproofing material is opened. Therefore, the vibration sound of the compressor passes through the opening and leaks to the outside of the soundproof material, and the noise reduction effect is inferior. As a means for preventing this, it is conceivable to close the upper opening of the soundproof material with another soundproof material (see, for example, Patent Documents 3 to 5), but according to such means, according to such means. The number of parts of the soundproofing material increases, which complicates the installation work. In addition, the cost of the soundproof material is high. Therefore, it is desired to appropriately solve such a problem.

In the past, when the mounting state of the soundproofing material was simplified, the soundproofing material was likely to be displaced downward with respect to the compressor and the accumulator. In the heat pump device, a compressor may be installed on the support plate portion through which the dew condensation water flows, but if the soundproof material is displaced downward, the soundproof material may get wet with the dew condensation water. This causes a problem that the compressor and the accumulator come into contact with the dew condensation water absorbed by the soundproofing material, which causes rust to be generated. Preferably, it is also desired to eliminate such a problem.

Japanese Patent No. 5395136 Jitsukaisho 61-14781 Gazette Japanese Patent No. 3117335 Japanese Unexamined Patent Publication No. 10-73288 Japanese Unexamined Patent Publication No. 2010-174634

The present invention has been conceived under the above-mentioned circumstances, and it is intended to improve the noise reduction effect while reducing the number of parts of the soundproofing material and reducing the manufacturing cost. It is an object of the present invention to provide a soundproof structure of a compressor capable of making a noise, and a heat pump device equipped with the soundproof structure.

In order to solve the above problems, the following technical means are taken in the present invention.

The soundproof structure of the compressor provided by the first aspect of the present invention is a plane of a compressor and an accumulator provided side by side and an upper opening that collectively surrounds the periphery of the outer peripheral side surface of the compressor and the accumulator. A part of the upper part of the soundproofing material so that the soundproofing material which is set in a loop shape and the upper part is located above the compressor and the accumulator and the upper opening of the soundproofing material is narrowed down. A soundproof structure for a compressor comprising a throttle connecting portion connected to each other in a state of being close to or in contact with each other, and as the soundproofing material, surrounds the periphery of the outer peripheral side surface of the compressor and the accumulator. A soundproof material having a substantially rectangular sheet shape is used in the unfolded state, and the drawing connecting portion is formed in an intermediate region of the upper portion of the soundproof material in the side-by-side direction of the compressor and the accumulator. Therefore, it is possible to bind the pair of holes provided at the positions facing each other and the peripheral portions of the formed portions of the pair of holes so as to be in contact with each other. It is characterized in that it is configured by combining a member for bundling .

With such a configuration, the following effects can be obtained.
That is, since the soundproofing material has a loop shape in a plan view of the upper opening that collectively surrounds the periphery of the outer peripheral side surface of the compressor and the accumulator, the vibration noise of the compressor is generated by the upper opening of the soundproofing material in this state. It becomes easy to leak from the part to the outside. On the other hand, according to the present invention, since the drawing connecting portion is provided on the upper part of the soundproofing material and the upper opening is narrowed down, the opening area is small and the vibration noise of the compressor is generated by the upper opening of the soundproofing material. It becomes difficult to leak to the outside through the above, and a preferable noise prevention effect can be obtained.
On the other hand, the drawing connecting portion of the soundproofing material is not configured by using another soundproofing material, but is configured by connecting a part of the upper part of the soundproofing material to each other. Therefore, it is possible to reduce the number of parts of the soundproofing material and reduce the manufacturing cost. In addition, the work of assembling the soundproof material can be facilitated and the productivity can be improved.

Further, according to the above configuration, it is possible to efficiently squeeze the soundproofing material so that the upper opening has a small area while reducing the number of connecting portions for squeezing.

In the present invention, preferably, a support plate portion for mounting and supporting the compressor is further provided, and the lower end portion of the soundproofing material is more than the support plate portion so as not to come into contact with the upper surface of the support plate portion. It is set to a high height.

With such a configuration, the following effects can be obtained.
That is, when a liquid such as dew condensation water flows on the upper surface of the support plate portion, it is possible to prevent the lower end portion of the soundproofing material from coming into contact with the liquid. In this case, the drawing connecting portion of the soundproof material can be expected to engage the upper part of the soundproof material with the upper part of the compressor or the accumulator to prevent the soundproof material from being displaced downward. As a result, it is possible to appropriately prevent problems such as the compressor and accumulator coming into contact with the liquid sucked up by the soundproofing material and causing rust on them.

In the present invention, preferably, the compressor has a configuration in which the compressor main body portion is provided on the pedestal portion and the pedestal portion is fixed to the support plate portion, and the soundproofing material is on the compressor side. A part of the soundproofing material is located on the pedestal part, and the other part on the accumulator side protrudes to the outside of the pedestal part. The upper part engages with the upper part of the accumulator, and the other part of the soundproofing material is provided to be regulated to be lowered.

According to such a configuration, when a liquid such as dew condensation water flows on the upper surface of the support plate portion, it is more preferable to thoroughly prevent the soundproofing material from getting wet with the liquid.

The heat pump device provided by the second aspect of the present invention is characterized by comprising the soundproof structure of the compressor provided by the first aspect of the present invention.

With such a configuration, the same effect as described for the soundproof structure of the compressor provided by the first aspect of the present invention can be obtained.

Other features and advantages of the invention will become more apparent from the following description of embodiments of the invention with reference to the accompanying drawings.

It is an external perspective view which shows an example of the heat pump apparatus which concerns on this invention. It is a partially omitted disassembled perspective view of the heat pump device shown in FIG. (A) is a plan view of a main part of a place where a compressor and an accumulator of a heat pump device shown in FIG. 1 are attached, (b) is a sectional view taken along the line IIIb-IIIb of (a), and (c) is (c). It is sectional drawing of IIIc-IIIc of b). It is a plan sectional view of FIG. 3 (b). FIG. 3 is an exploded perspective view of a main part of a mounting location of a compressor and an accumulator of the heat pump device shown in FIG. 1. (A) is a plan view of a main part showing the first pair proportion to the embodiment shown in FIGS. 1 to 5, and (b) is a sectional view taken along the line VIb-VIb of (a). It is a plan view of the main part which shows the 2nd pair proportion with respect to the embodiment shown in FIGS. 1 to 5 (however, it corresponds to the example which can be included in the technical scope of this invention).

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

The heat pump device HP shown in FIGS. 1 and 2 has a configuration in which equipment constituting a refrigeration cycle using CO ₂ or the like as a refrigerant is housed in an outer case 5. The equipment constituting the refrigeration cycle includes an evaporative heat exchanger 1 (evaporator) that absorbs heat from the air taken in by using the fan 10, a compressor 2, a condensed heat exchanger 3 for heating hot water, and an expansion valve. (Not shown). The condensed heat exchanger 3 is housed in the heat insulating case 30.
The heat pump device HP includes a soundproof structure A of a compressor. In this soundproof structure A, the compressor 2 and the accumulator 4 provided on the refrigerant suction side thereof are collectively surrounded by the soundproof material 6, and the details thereof will be described later.

The exterior case 5 is formed by combining an exterior case main body 50, which is formed in a substantially rectangular parallelepiped with an upper surface opening and has a front panel 50a, and a lid member 51 that closes the upper surface opening of the outer case main body 50. The inside of the outer case 5 is divided into a plurality of first to third regions Ra to Rc by the vertical partition plate 52 and the horizontal partition plate 53, and the fan 10 and the evaporative heat exchanger 1 are in the first region Ra. Is arranged, and a compressor 2 and an accumulator 4 are provided in the second region Rb. A condensed heat exchanger 3 is arranged in the third region Rc, and a pipe 95 on the discharge side of the compressor 2 is connected to the condensed heat exchanger 3. A pipe 96 into which the refrigerant that has passed through the evaporation heat exchanger 1 flows is connected to the accumulator 4.

A water inlet 90 and a hot water outlet 91 are provided on the side surface of the outer case 5, and these are connected to the condensed heat exchanger 3 via a pipe 92. The heat pump device HP of the present embodiment is used, for example, as a heat source for a hot water storage tank type hot water supply device, and hot water supplied from a hot water storage tank (not shown) to the water inlet 90 is sent to the condensed heat exchanger 3. After being heated, it is set to reach the hot water outlet 91 and be returned to the hot water storage tank.

The soundproof structure A of the compressor has a configuration as shown in FIGS. 3 and 4 in more detail.
That is, the compressor 2 has a configuration in which a substantially columnar compressor main body 21 is provided on the pedestal 20 in an upright posture, and a driving motor M is attached to the upper portion thereof. The pedestal portion 20 is placed on the support plate portion 59 as the bottom wall portion of the exterior case 5, and is fixed to the support plate portion 59 by using a fastening member 58 such as a bolt or a screw. The accumulator 4 is provided side by side close to the compressor 2, is supported by the compressor 2 via a connecting portion 28, and is supported by the compressor 2 via a short piping portion 97, and is on the suction side of the compressor 2 via a short piping portion 97. It is connected to the.

As the soundproofing material 6, it is possible to use a conventionally known material. As shown in the partially enlarged cross-sectional view of FIG. 3B, the soundproofing material 6 in the present embodiment has a sound absorbing material 6b made of a non-woven fabric laminated on one side of the rubber or resin soundproofing sheet 6a on the inner surface side. It is a flexible sheet (however, in other figures, the soundproofing material 6 is shown as a single-layer sheet). The non-woven fabric also includes felt.

The soundproofing material 6 has a substantially rectangular sheet shape in the unfolded state, but is wound around the outer peripheral side surfaces of the compressor 2 and the accumulator 4 and has a loop shape in a plan view of a vertical opening that collectively surrounds the periphery thereof. (See also Figure 4).

Here, in the present embodiment, the soundproof material 6 is provided with the soundproof material overlapping portion 60 and the drawing connecting portion 61. The details of these will be described below.

In FIG. 4, the soundproof material overlapping portion 60 is a portion where both ends of the soundproofing material 6 are overlapped with each other, and is provided in a region of the outer peripheral side surface of the accumulator 4 opposite to the compressor 2 side.
Preferably, as shown by reference numeral Sa in FIG. 4, the range in which the soundproof material overlapping portion 60 is provided is a range of half or more of the outer peripheral side surface of the accumulator 4 opposite to the compressor 2 side. .. In other words, the soundproof material overlapping portion 60 protrudes from the center line CL of the accumulator 4 shown in FIG. 4 to the compressor 2 side by an appropriate dimension La, or the protruding dimension is zero (both ends of the soundproof material overlapping portion 60 are center lines). It is provided so as to be (matching CL). The soundproof material overlapping portion 60 is not provided on the compressor 2 side, and the soundproof material 6 is thicker on the accumulator 4 side than on the compressor 2 side. With such a configuration, as will be described later, it is possible to obtain a vibration suppressing effect of the accumulator 4 by increasing the mass of the soundproofing material 6 on the accumulator 4 side.
As a means for maintaining the soundproofing material 6 in a loop shape surrounding the compressor 2 and the accumulator 4, various connecting means (means using a binding tool, a string, etc., a stapler stopper, and the like) described later for the drawing connecting portion 61 are used. ) It is possible to adopt the same means.

The soundproofing material 6 is set at a height at which the upper portion thereof is located above the compressor 2 and the accumulator 4. The drawing connecting portion 61 is a portion for narrowing the upper opening 62 of the soundproofing material 6, and is a portion where parts 63a and 63b of the upper portion of the soundproofing material 6 are connected to each other in close contact with each other or in contact with each other. Preferably, the throttle connecting portion 61 is provided in an intermediate region in the side-by-side arrangement direction of the compressor 2 and the accumulator 4, more preferably substantially in the central portion, in the upper portion of the soundproofing material 6.

In the present embodiment, as shown in FIG. 5, a pair of holes 64a and 64b are provided in the upper portion of the soundproofing material 6, and a binding tool (tie lock) 65 is inserted into these holes 64a and 64b. By allowing the holes 64a and 64b to be formed, the portions 63a and 63b as peripheral portions of the formed portions are connected to each other in a state of being close to or in contact with each other. The opening area of the upper opening 62 of the soundproofing material 6 is narrowed down to a considerably smaller size than the portion of the soundproofing material 6 that surrounds the outer peripheral side surfaces of the compressor 2 and the accumulator 4 (see FIG. 4). (See Fig. 3 (a)). In the drawing, the upper opening 62 is shown in a relatively open state, but in reality, it is possible to set the opening area to a smaller state or a state close to fully closed. Bundling tool 65
Is a general-purpose product similar to that used for bundling, for example, electrical wiring cords.

In FIG. 3B, the soundproofing material 6 has an arrangement in which the lower portion on the compressor 2 side is placed on the pedestal portion 20. The lower part of the soundproofing material 6 on the accumulator 4 side protrudes from the pedestal portion 20, but is arranged so as to float by an appropriate dimension Lb from the upper surface of the support plate portion 59, and is not in contact with the support plate portion 59. ing. In addition to narrowing the upper opening 62 of the soundproofing material 6, the drawing connecting portion 61 narrows the vicinity of the upper part of the soundproofing material 6 as shown in FIG. 3C, and forms a part of the soundproofing material 6. It also abuts and engages with the upper part of the compressor 2 and the accumulator 4 to prevent the soundproofing material 6 from being displaced downward. This makes it possible to eliminate the problem that the soundproofing material 6 comes into contact with the dew condensation water on the support plate portion 59, as will be described later.

Next, the operation of the heat pump device HP provided with the soundproof structure A of the compressor described above will be described.

First, FIG. 6 is a first pair of proportions to the present embodiment, and the drawing connecting portion 61 is not provided on the upper portion of the soundproofing material 6. Therefore, in this first pair proportionality, the upper opening 62 of the soundproofing material 6 is not narrowed down and is greatly opened. In such a state, the vibration noise of the compressor 2 leaks from the upper opening 62 to the outside of the soundproof material 6, and the vibration noise becomes large.

On the other hand, according to the present embodiment, as shown in FIG. 3A, the upper opening 62 of the soundproofing material 6 is narrowed down to a small opening area, so that it is compared with the first pair proportionality. , The vibration noise of the compressor 2 is less likely to leak to the outside from the upper opening 62. Therefore, vibration noise can be reduced. If the upper opening 62 of the soundproofing material 6 is closed by another member, the same operation as described above can be obtained, but this increases the component cost and the manufacturing cost. On the other hand, in the present embodiment, since the soundproofing material 6 is provided with the drawing connecting portion 61 without using such other members, the manufacturing cost can be reduced. But it will be preferable.

Further, in the first pair proportionality, the region of the soundproof material 6 on the accumulator 4 side protruding from the pedestal portion 20 is displaced downward due to the vibration of the compressor 2, and the lower end portion thereof is supported. There is a risk of contact with the upper surface of the plate portion 59. In the heat pump device HP, dew condensation water may be generated inside the heat pump device HP, and the dew condensation water may flow on the support plate portion 59. Therefore, in the first pair proportion, the soundproofing material 6 comes into contact with the dew condensation water, and as a result of sucking up the dew condensation water, the accumulator 4 and the compressor 2 may get wet with the dew condensation water.

On the other hand, according to the present embodiment, as shown in FIG. 3C, the upper part of the soundproofing material 6 is narrowed down in a narrow width, and the upper part of the soundproofing material 6 is on the upper part of the compressor 2 and the accumulator 4. As a result of the engagement, the soundproofing material 6 is appropriately prevented from being displaced downward with respect to the compressor 2 and the accumulator 4. As a result, unlike the first pair proportionality, a part of the soundproofing material 6 does not descend and come into contact with the dew condensation water on the support plate portion 59.
In the present embodiment, of the soundproofing material 6, the soundproofing material overlapping portion 60 is provided on the accumulator 4 side, and since the mass of this portion is large, the portion on the accumulator 4 side is originally displaced downward. However, due to the presence of the drawing connecting portion 61, such a possibility can be appropriately avoided.

FIG. 7 shows the second pair proportionality, and in this second pair proportionality, the soundproof material overlapping portion 60 is not provided on the accumulator 4 side of the soundproof material 6. The connecting portions 6c at both ends of the soundproofing material 6 are provided, for example, on the compressor 2 side. In this second pair proportion, since the accumulator 4 is arranged offset from the center of the compressor 2 (which substantially corresponds to the center of vibration), it is affected by the vibration of the compressor 2 and is centered on the compressor 2. There is a risk of vibrating with a large amplitude in the direction of the arrow Na.

On the other hand, according to the present embodiment, as shown in FIG. 4, since the soundproof material overlapping portion 60 is a portion where the mass is increased, the vibration-proof mass located on the accumulator 4 side. To serve as. As a result, the amplitude when the accumulator 4 vibrates in the direction of the arrow Na around the compressor 2 can be reduced, and the vibration of the accumulator 4 and the compressor 2 as a whole can be reduced. This is a preferable effect in preventing the generation of large repetitive stresses in the pipes 95 and 96 connected to the compressor 2 and the accumulator 4 and preventing their damage.
The soundproofing material stacking portion 60 for obtaining the vibration-proofing action is configured by simply stacking the ends of the soundproofing material 6 at the positions of the outer peripheral side surfaces of the accumulator 4, and no special parts are used. Therefore, there is no problem that the manufacturing cost is greatly increased.

The present invention is not limited to the contents of the above-described embodiments. The soundproof structure of the compressor according to the present invention and the specific configuration of each part of the heat pump device can be variously redesigned within the scope of the present invention.

The drawing connecting portion is not limited to one location, and may be configured to be provided at a plurality of locations. Examples of the connecting portion for drawing include a means for passing a member such as a string other than the binding tool 65 through a hole provided in the soundproof material .

In the present invention, it is not an essential requirement that the soundproof material 6 is provided with the soundproof material overlapping portion 60, and the structure is such that the soundproof material overlapping portion 60 is not provided, for example, as in the second pair proportion shown in FIG. You can also do it. When surrounding the outer peripheral side surface of the compressor and the accumulator with a soundproof material, it does not matter at which position the overlapping portion or the mating connection portion between the ends of the soundproof material is located.
The soundproofing material is preferably a multi-layer structure in which a soundproofing sheet and a sound absorbing material are laminated, but the soundproofing material is not limited to this, and for example, a single-layer sheet type can be used, and the specific material of the soundproofing material is also. It doesn't matter.
The soundproof structure of the compressor according to the present invention is not limited to the heat pump device, and can be applied to devices other than the heat pump device. The heat pump device is not limited to hot water heating, and includes, for example, an air conditioner (for an air conditioner).

A Compressor soundproof structure HP heat pump device 2 Compressor 20 pedestal (of compressor)
21 Compressor body 4 Accumulator 59 Support plate 6 Soundproofing material 61 Squeezing connection part 62 Upper opening (of soundproofing material)
63a, 63b Partial (of soundproofing material)
65 Tie

Claims (4)

Compressors and accumulators installed side by side,
A soundproofing material that is set in a planar cross-sectional view loop shape of the upper opening that collectively surrounds the periphery of the outer peripheral side surface of the compressor and the accumulator, and whose upper portion is located above the compressor and the accumulator .
A diaphragm connecting portion in which the upper portions of the soundproofing material are connected to each other in a state of being close to or in contact with each other so that the upper opening of the soundproofing material is narrowed down.
The soundproof structure of the compressor, which is equipped with
As the soundproofing material, a soundproofing material having a substantially rectangular sheet shape in an unfolded state that does not surround the periphery of the outer peripheral side surface of the compressor and the accumulator is used.
The drawing connecting portion is
A pair of holes provided in an intermediate region in the side-by-side arrangement direction of the compressor and the accumulator in the upper portion of the soundproofing material and facing each other.
A binding member that is inserted through the pair of holes and can be bound so that the peripheral portions of the formed portions of the pair of holes are in contact with each other.
The soundproof structure of the compressor, which is characterized by being composed of a combination of. The soundproof structure of the compressor according to claim 1.
A support plate portion for mounting and supporting the compressor is further provided.
The soundproof structure of the compressor, in which the lower end portion of the soundproof material is set at a height higher than the support plate portion so as not to come into contact with the upper surface of the support plate portion . The soundproof structure of the compressor according to claim 2 .
The compressor has a configuration in which a compressor main body is provided on a pedestal and the pedestal is fixed to the support plate.
The soundproofing material is provided so that a part on the compressor side is located on the pedestal portion and the other part on the accumulator side protrudes to the outside of the pedestal portion.
The throttle connecting portion of the soundproof material is provided so as to be able to regulate that the upper part of the soundproof material engages with the upper part of the accumulator and the other part of the soundproof material is lowered. Soundproof structure. A heat pump device comprising the soundproof structure of the compressor according to any one of claims 1 to 3.

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