WO2024018836A1

WO2024018836A1 - Support structure for compressor

Info

Publication number: WO2024018836A1
Application number: PCT/JP2023/023509
Authority: WO
Inventors: 芳夫小和田; 隆久戸部; 靖明狩野
Original assignee: サンデン株式会社
Priority date: 2022-07-19
Filing date: 2023-06-26
Publication date: 2024-01-25
Also published as: JP2024013038A

Abstract

[Problem] To effectively suppress vibration of an upper end side of a compressor body in a support structure for a compressor, and to prevent disconnection of a power source connector that connects to an upper end part of the compressor body. [Solution] This support structure for a compressor supports a compressor by fixing a leg part, which is provided to a compressor body, to a base plate with an elastic member therebetween, wherein: a power source connector is connected to an upper part of the compressor body; a cover member that covers the power source connector is mounted to the compressor body; and the cover member is fixed by a fixing member that fixes the leg part to the base plate.

Description

Compressor support structure

The present invention relates to a support structure for a compressor.

A compressor installed in an air conditioner or the like is equipped with a support structure that has a vibration-proofing function. Conventionally, as a support structure for a compressor, when fixing the compressor main body to a base plate, legs are protruded from the compressor main body in three directions on a horizontal plane, and the legs are bolted to the base plate via an elastic member. It is fixed with a stopper or the like (see Patent Document 1 below).

Japanese Patent Application Publication No. 2002-70777

The support structure of a conventional compressor is such that the lower end of the compressor main body in the vertical direction is fixedly supported on a base plate, and an elastic member is interposed to prevent vibration and noise. However, according to this support structure, since the upper end side of the compressor body in the vertical direction is a free end, it is not possible to effectively suppress swinging of the upper end side of the compressor body. In particular, in a vertical compressor in which the center of gravity of the compressor body is located away from the supporting portion for the base plate, the swinging of the upper end of the compressor body becomes more pronounced due to the structure.

In this way, when vibration occurs at the upper end of the compressor body, in an air conditioner equipped with a compressor body, a load is applied to the refrigerant piping connected to the compressor body, and this load causes the connection of the refrigerant piping to If any parts become damaged or come off, the refrigerant circuit will malfunction. For this reason, in air conditioners, it is desired to suppress vibrations of the compressor body and ensure stable operation of the refrigerant circuit.

Additionally, a power connector may be connected to the upper end of the compressor main body. In this case, if vibration occurs at the upper end of the compressor main body, the vibration tends to cause the power connector to become disconnected.

The present invention was proposed in order to deal with such a situation, and in the support structure of the compressor, it effectively suppresses the swinging of the upper end of the compressor main body, and also provides a support structure for the compressor main body. It is an object of the present invention to prevent a connected power connector from coming off.

In order to solve such problems, a compressor support structure according to the present invention has the following configuration.
The compressor is supported by fixing legs provided on the compressor body to a base plate via elastic members, and a power connector is connected to the upper part of the compressor body, and the A support structure for a compressor, characterized in that a cover member that covers the power connector is attached to the compressor main body, and the cover member is fixed by a fixing member that fixes the legs to the base plate. .

The present invention, which has these features, effectively suppresses the vibration of the upper end of the compressor body in the support structure of the compressor, and also prevents the power connector connected to the upper end of the compressor body from coming off. can do. This enables stable operation of the refrigerant circuit including the compressor main body, and enables smooth and quiet operation of the air conditioner having the refrigerant circuit capable of stable operation.

FIG. 1 is an explanatory diagram (side view) showing an example of a support structure for a compressor according to an embodiment of the present invention. FIG. 1 is an explanatory diagram (plan view) showing an example of a support structure for a compressor according to an embodiment of the present invention. FIG. 7 is an explanatory diagram (side view) showing another example (modified example) of the support structure for the compressor according to the embodiment of the present invention. FIG. 7 is an explanatory diagram (side view) showing another example (modified example) of the support structure for the compressor according to the embodiment of the present invention. FIG. 7 is an explanatory diagram (side view) showing another example (modified example) of the support structure for the compressor according to the embodiment of the present invention. FIG. 1 is an explanatory diagram (left side view) showing an air conditioner including a support structure for a compressor according to an embodiment of the present invention. FIG. 1 is an explanatory diagram (right side view) showing an air conditioner including a support structure for a compressor according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different figures indicate parts with the same function, and redundant explanation in each figure will be omitted as appropriate.

As shown in FIGS. 1 and 2, the compressor support structure 1 according to the embodiment of the present invention has legs 11 for fixing the compressor main body 10 to the base plate 100. A plurality of legs 11 protrude at equal intervals on a horizontal surface (in the illustrated example, they protrude at equal intervals in three directions), and a rubber material, a spring material, etc. is provided between the legs 11 and the base plate 100. An elastic member 12 is interposed.

Furthermore, a power connector 20 is connected to the upper end of the compressor main body 10. The power connector 20 is provided at an end of a power cable 21 whose one end is connected to a power source (not shown), and is connected to a connection terminal 13 provided at the upper end of the compressor body 10.

A cover member 30 is attached to the upper part of the compressor main body 10 so as to cover the power supply connector 20. The cover member 30 has a hole 31 through which the pipe (refrigerant pipe) 14 connected to the compressor main body 10 passes, and a hole 32 through which the power cable 21 described above passes. The cover member 30 has a fixing piece 33 for fixing itself, and the fixing member 40 fixes the legs 11 of the compressor main body 10 to the base plate 100 via the fixing piece 33. 30 is fixed to the base plate 100.

In the example shown in FIGS. 1 and 2, the fixing member 40 includes a long bolt 41 extending in the vertical direction, a nut 42 screwed into the bolt 41, and a collar 43 inserted into the bolt 41. ing. In the illustrated support structure 1, the head of the bolt 41 is embedded and supported or fixed in the base plate 100, and the threaded portion of the bolt 41 is erected against the base plate 100 with the tip end facing upward. There is. On the other hand, an elastic member 12 is interposed between the base plate 100 and the leg part 11 of the compressor main body 10, and a collar 43 is interposed between the leg part 11 and the fixing piece 33 to fix the leg part 11 and A nut 42 is screwed onto the threaded portion of a bolt 41 coaxially inserted into the piece 33 from above the fixed piece 33. Thereby, the fixing member 40 fixes the leg portion 11 and the fixing piece 33 coaxially.

At this time, a well-known locking function can be added to the nut 42 by interposing a washer or spring washer (not shown) or by adopting a double nut or the like.

According to this, the lower part of the compressor main body 10 is fixed to the fixing member 40 via its legs 11, and the upper part of the compressor main body 10 is fixed to the fixing member 40 via the fixing piece 33 of the cover member 30. will be done. According to this, the lower and upper parts of the compressor main body 10 are fixed to the base plate 100 by the plurality of fixing members 40, so that the swinging of the upper end side of the compressor main body 10 can be effectively suppressed.

Moreover, since the cover member 30 is fixed to the upper part of the compressor main body 10 so as to cover the power connector 20 connected to the upper end of the compressor main body 10, the power connector 20 is always directed toward the compressor main body 10. The power connector 20 is in a pressed state, and the disconnection of the power connector 20 can be effectively prevented.

Here, the cover member 30 is fixedly attached to the upper part of the compressor main body 10, but in reality, by interposing a cushioning member such as a sponge inside the cover member 30, the compressor Shaking and impact noise between the main body 10 and the cover member 30 can be suppressed.

In such a support structure 1, if the fixing position of the cover member 30 (the position of the fixing piece 33) is provided near the height of the center of gravity G of the compressor main body 10, the vibration of the compressor main body 10 can be more effectively prevented. In addition, disconnection of the power connector 20 can be effectively prevented.

The example shown in FIG. 3 is a modification of the example shown in FIGS. 1 and 2, and the pipe 14 connected to the compressor main body 10 extends laterally. In this case, as shown in the figure, the cover member 30 is provided with a notch 34 instead of the hole 31 so that the pipe 14 can be drawn out. Note that the power cable 21 can also be pulled out through a similar cutout.

The example shown in FIG. 4 is a modification of the example described above. In this example, the fixed piece 33 of the cover member 30 is provided with a threaded structure (female thread), and the bolt 41 is directly screwed into this, thereby omitting the nut 42. In this case, the fixing piece 33 has a thickness t for effectively providing a female thread.

The example shown in FIG. 5 is also a modification of the example described above. In this example, the collar 43 is omitted by fixing the leg portion 11 with a nut 42 as well. In this case as well, as described above, a well-known locking function can be added to the nut 42 by interposing a washer or spring washer (not shown) or by employing a double nut or the like.

6 and 7 show an air conditioner 101 equipped with the compressor support structure described above. In addition to the compressor body 10 described above, the air conditioner 101 includes a heater (condenser) 110, a cooler (evaporator) 130, and a pressure reducer 150 to form a refrigerant circuit. A first blower 140 is provided for the heater 110, and a second blower 120 is provided for the heater 110. It also includes a control device 160 that controls the compressor main body 10 and the blowers (first blower 140 and second blower 120).

In a case (not shown) of the air conditioner 101, a compressor main body 10, a heater (condenser) 110, and a second blower 120 are arranged on a base plate 100, and a cooler (evaporator) is arranged vertically above these. ) 130, the first blower 140, the pressure reducer 150, and the control device 160, the air conditioner 101 becomes a portable small unit with a compact structure.

In order to have such a compact structure, one side of the cooler 130 ( The pressure reducer 150 is disposed on the left side when viewed from the front), and the compressor main body 10 is disposed on the other side of the cooler 130 (on the right side when viewed from the front) and on the lower side of the cooler 130 in the vertical direction. Further, a control device 160 is arranged on the other side of the cooler 130 (vertically above the compressor main body 10). Note that an accumulator 111 is arranged in front of the compressor main body 10.

On the base plate 100, the compressor main body 10 is arranged on the right side of the heater 110 when viewed from the front, and the second blower 120 is arranged on the front side of the heater 110. A cooler 130 is arranged vertically above the heater 110 and slightly forward of the heater 110 so as to partially overlap the heater 110 in the vertical direction. When viewed from the front, the pressure reducer 150 is placed on the left side of the cooler 130, the control device 160 is placed on the right side, and the first blower 140 is placed on the back side of the cooler 130.

Further, on the upper surface of the cooler 130, there is a refrigerant inlet 131 on one side of the cooler 130 (left side in front view), that is, on the pressure reducer 150 side, through which the refrigerant that has passed through the pressure reducer 150 flows into the cooler 130. It is provided. Further, on the upper surface of the cooler 130, a refrigerant outlet 132 for the refrigerant that passes through the cooler 130 and returns to the compressor main body 10 is provided on the rear side of the refrigerant inlet 131.

That is, in the cooler 130, the refrigerant inlet 131 is provided so that the refrigerant flows in from the upper surface of the cooler 130, and the refrigerant outlet 132 is provided so that the refrigerant flows out from the upper surface of the cooler 130. . The refrigerant outlet 132 and the compressor main body 10 are connected by a refrigerant pipe 94. The refrigerant pipe 94 is routed from the refrigerant outlet 132 to the rear side of the control device 160, and then passes under the control device 160 and is connected to the front side of the compressor main body 10.

A refrigerant inlet 112 is provided on the upper surface of the heater 110 on one side of the heater 110 (on the left side when viewed from the front) and on the rear side of the heater 110, through which the high-pressure refrigerant discharged from the compressor main body 10 flows. It is being Further, on the upper surface of the heater 110 , a refrigerant outlet 113 is provided on the front side of the refrigerant inlet 112 so that the refrigerant passes through the heater 110 and flows out toward the pressure reducer 150 .

That is, in the heater 110, the refrigerant inlet 112 is provided so that the refrigerant flows in from the top surface of the heater 110, and the refrigerant outlet 113 is provided so that the refrigerant flows out from the top surface of the heater 110. . The compressor main body 10 and the refrigerant inlet 112 of the heater 110 are connected by a refrigerant pipe 91, the refrigerant outlet 113 and the pressure reducer 150 are connected by a refrigerant pipe 92, and the refrigerant inlet of the pressure reducer 150 and the cooler 130 are connected. 131 through a refrigerant pipe 93. Both the refrigerant pipe 92 and the refrigerant pipe 93 are located on the pressure reducer 150 side with respect to the cooler 130.

In such an air conditioner 101, the refrigerant is compressed by the compressor body 10 and discharged as a high-pressure gas refrigerant, and the high-pressure gas refrigerant passes through the refrigerant pipe 91 and is heated via the refrigerant inlet 112. The air flows into the container 110 and radiates heat by exchanging heat with the air blown from the second blower 120 and passing through the heater 110 .

The high-pressure refrigerant flowing out from the refrigerant outlet 113 of the heater 110 passes through the refrigerant pipe 92, flows into the pressure reducer 150, is depressurized by the pressure reducer 150, expands, and becomes a low-pressure refrigerant. The refrigerant whose pressure has become low in the pressure reducer 150 passes through the refrigerant pipe 93 and flows into the cooler 130 from the refrigerant inlet 131 . The low-pressure refrigerant flowing into the cooler 130 absorbs heat by exchanging heat with the air blown by the first blower 140 and passing through the cooler 130 , and flows out through the refrigerant outlet 132 of the cooler 130 . The refrigerant flowing out of the cooler 130 flows through the refrigerant pipe 94 and returns to the compressor main body 10 via the accumulator 111. The refrigerant that has flowed into the compressor main body 10 is compressed again, and the above circulation is repeated.

On the other hand, the first blower 140 is arranged on the upstream side of the cooler 130 in the air flow direction, and blows air taken in from an inlet provided on the back side of the casing (not shown) to the cooler 130. . The air blown from the first blower 140 to the cooler 130 is cooled by absorbing heat from the refrigerant while passing through the cooler 130 . The cooled air is blown out as cold air from an outlet in the housing (not shown).

The second blower 120 is arranged on the upstream side of the heater 110 in the air flow direction, and blows air taken in from an inlet provided at the front of the casing (not shown) to the heater 110. The air blown from the second blower 120 to the heater 110 exchanges heat with the refrigerant in the process of passing through the heater 110, and flows out from an exhaust port (not shown) provided on the back of the casing (not shown).

In such an air conditioner 101, the lower part of the compressor main body 10 and the upper part to which the cover member 30 is attached are fixed to the base plate 100 by the fixing member 40, so that vibrations of the compressor main body 10 are prevented. - Not only can noise and vibration be suppressed, but also the disconnection of the power connector 20 connected to the upper end of the compressor main body 10 can be prevented. According to this, it is possible to suppress the load on the pipe 14 connected to the compressor main body 10 and the refrigerant pipe 91 connected thereto, and it is possible to stably operate the refrigerant circuit. 101 can be realized in a smooth and quiet operation.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the design may be changed without departing from the gist of the present invention. Even if there is, it is included in the present invention. In addition, the above-described embodiments can be combined by utilizing each other's technologies unless there is a particular contradiction or problem in their purpose, structure, etc.

1: Support structure,
10: Compressor body, 11: Legs, 12: Elastic member, 13: Connection terminal, 14: Piping,
20: Power connector, 21: Power cable,
30: Cover member, 31, 32: Hole, 33: Fixed piece, 34: Notch,
40: Fixing member, 41: Bolt, 42: Nut, 43: Collar,
100: Base plate, 101: Air conditioner, 110: Heater, 130: Cooler,
150: pressure reducer, 120: second blower, 140: first blower, 160: control device,
111: Accumulator,
112, 131: Refrigerant inlet, 113, 132: Refrigerant outlet,
91, 92, 93, 94: Refrigerant piping

Claims

A structure that supports a compressor by fixing legs provided on a compressor main body to a base plate via an elastic member,
A power connector is connected to the upper part of the compressor main body, and a cover member that covers the power connector is attached to the compressor main body,
A support structure for a compressor, wherein the cover member is fixed by a fixing member that fixes the leg portion to a base plate.
The cover member includes a fixing piece projecting at a position corresponding to the leg,
The support structure for a compressor according to claim 1, wherein the fixing member fixes the leg portion and the fixing piece coaxially.
The support structure for a compressor according to claim 2, wherein a collar member is interposed between the leg portion and the fixed piece.
The compressor support structure according to claim 1, wherein the cover member is fixed at a position near the height of the center of gravity of the compressor main body.