JP2015086982A - Pipeline fixture and outdoor unit of freezer including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipeline fixture which stably secures a clearance between pipelines and achieves high security, and to provide an outdoor unit of a freezer.SOLUTION: A pipeline fixture 50 is disposed between a fourth straight pipe part 14 and a fifth straight pipe part 15 in an outdoor unit 120 and fixes the fourth straight pipe part 14 and the fifth straight pipe part 15 with a band part 61. The pipeline fixture 50 includes a first curve surface 56 and a second curve surface 57. The first curve surface 56 curves into a shape along an outer surface of the fourth straight pipe part 14, and the second curve surface 57 curves into a shape along an outer surface of the fifth straight pipe part 15. A groove part 55 is formed on an outer surface of the pipeline fixture 50. The groove part 55 accommodates the band part 61 when the band part 61 for maintaining a state where the first curve surface 56 contacts with the outer surface of the fourth straight pipe part 14 and the second curve surface 57 contacts with the outer surface of the fifth straight pipe part 15 is wound around an outer periphery of the pipeline fixture 50.

Description

  The present invention relates to a pipe fixture that secures a clearance between pipes and an outdoor unit of a refrigeration apparatus including the pipe fixture.

  2. Description of the Related Art Conventionally, in a device in which a plurality of refrigerant pipes such as an outdoor unit of a refrigeration apparatus are housed close to each other, a buffer member 1 such as a foamed resin is piped 2 as shown in FIG. There is a method in which the buffer member 1, the pipe 2 and the pipe 3 are fixed with a binding band 4. However, with this method, it is difficult to ensure a constant clearance between the refrigerant pipes. Moreover, since it is difficult to reduce the clearance between the refrigerant pipes, downsizing of the device is restricted.

  Therefore, there is a pipe fixture for fixing the refrigerant pipe while ensuring a predetermined clearance as small as possible. For example, a pipe fixture disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2006-125699) is formed with a curved surface that comes into contact with a refrigerant pipe to be fixed, and a binding band in a state in which the refrigerant pipe is brought into contact with the curved face. The refrigerant pipe is fixed by being wound around. More specifically, in the pipe fixture of Patent Document 1, a plurality of refrigerant pipes arranged around the compressor are fixed so that adjacent refrigerant pipes do not come into contact with each other due to vibration of the compressor during operation. .

  By the way, in recent years, the piping system in the outdoor unit tends to be complicated, and the clearance between the refrigerant pipings is required to be as small as possible. For this reason, the pipes may come into contact with each other due to vibration or inclination during transportation in addition to the vibration caused by the compressor. However, the pipe fixing device of Patent Document 1 suppresses contact between refrigerant pipes around the compressor due to vibration attenuation caused by driving of the compressor, while between refrigerant pipes which are not easily affected by vibration of the compressor. No consideration is given to ensuring clearance. As a result, in the pipe fixture of Patent Document 1, it is assumed that the binding band is dropped due to vibration during transportation and the pipe fixture is detached from the refrigerant pipe, and the clearance between the refrigerant pipes is not stably secured. Is done.

  Then, the subject of this invention is providing the outdoor unit of the piping fixing tool excellent in the safety | security which can ensure the clearance between piping stably, and a freezing apparatus.

  The pipe fixture according to the first aspect of the present invention is disposed between the first refrigerant pipe and the second refrigerant pipe, and fixes the first refrigerant pipe and the second refrigerant pipe together with the binding band. The second refrigerant pipe extends along a direction parallel to the direction in which the first refrigerant pipe extends. The piping fixture according to the first aspect includes a first curved surface and a second curved surface. The first curved surface is curved into a shape along the outer surface of the first refrigerant pipe. The second curved surface is curved into a shape along the outer surface of the second refrigerant pipe. The piping fixture according to the first aspect has a groove portion formed on the outer surface thereof. When the binding band for holding the state where the first curved surface is in contact with the outer surface of the first refrigerant pipe and the second curved surface is in contact with the outer surface of the second refrigerant pipe is wound around the outer periphery of the groove portion. The binding band is accommodated.

  The piping fixture according to the first aspect of the present invention includes a first curved surface and a second curved surface, a groove is formed on the outer surface thereof, and the first curved surface is in contact with the outer surface of the first refrigerant pipe and When the binding band for holding the state in which the second curved surface is in contact with the outer surface of the second refrigerant pipe is wound around the outer periphery, the binding band is accommodated in the groove portion. Thereby, when a plurality of refrigerant pipes are arranged close to each other, a predetermined clearance is secured between the refrigerant pipes. Further, even if the binding band is about to fall off, it comes into contact with the edge of the groove and stops, so that the binding band is prevented from falling off. Therefore, the clearance between each refrigerant piping is stably ensured. Therefore, security is improved without restricting the downsizing of the device.

  The pipe fixture according to the second aspect of the present invention is the pipe fixture according to the first aspect, and the first distance is less than 20 mm. The first distance is the shortest distance between the first curved surface and the second curved surface.

  In the pipe fixture according to the second aspect of the present invention, the first distance that is the shortest distance between the first curved surface and the second curved surface is less than 20 mm. Thereby, a predetermined clearance is ensured small between the refrigerant pipes. Therefore, the clearance between the refrigerant pipes is stably secured to be small, and the compactness of the device is promoted and the safety is improved.

  A pipe fixture according to a third aspect of the present invention is a pipe fixture according to the first aspect or the second aspect, and is provided between the first refrigerant pipe, the second refrigerant pipe, and the third refrigerant pipe. It is arrange | positioned and the 3rd refrigerant | coolant piping is further fixed. The third refrigerant pipe extends along a direction parallel to the direction in which the first refrigerant pipe or the second refrigerant pipe extends. The piping fixture according to the third aspect further includes a third curved surface. The third curved surface is curved into a shape along the outer surface of the third refrigerant pipe. In the pipe fixture according to the third aspect, the second distance is less than 20 mm. The second distance is the shortest distance between the first curved surface or the second curved surface and the third curved surface. In the pipe fixture according to the third aspect, when the binding band for further holding the third curved surface in contact with the outer surface of the third refrigerant pipe is wound around the outer periphery, the binding band is accommodated in the groove portion. The

  The piping fixture according to the third aspect of the present invention further includes a third curved surface, and the second distance that is the shortest distance between the first curved surface or the second curved surface and the third curved surface is less than 20 mm. is there. Further, in the pipe fixture according to the third aspect, when the binding band for further holding the third curved surface in contact with the outer surface of the third refrigerant pipe is wound around the outer periphery, the binding band is formed in the groove portion. Be contained. Thereby, when several refrigerant | coolant piping is arrange | positioned adjacently, the clearance between each refrigerant | coolant piping is further smaller and ensured more stably.

  A pipe fixture according to a fourth aspect of the present invention is a pipe fixture according to the third aspect, comprising: a first refrigerant pipe, a second refrigerant pipe, a third refrigerant pipe, and a fourth refrigerant pipe. It is arrange | positioned between and the 4th refrigerant | coolant piping is further fixed. The fourth refrigerant pipe extends along a direction parallel to the direction in which the first refrigerant pipe, the second refrigerant pipe, or the third refrigerant pipe extends. The piping fixture according to the fourth aspect further includes a fourth curved surface. The fourth curved surface is curved into a shape along the outer surface of the fourth refrigerant pipe. In the pipe fixture according to the fourth aspect, the third distance is less than 20 mm. The third distance is the shortest distance between the first curved surface, the second curved surface or the third curved surface, and the fourth curved surface. In the pipe fixture according to the fourth aspect, when the binding band for further holding the state in which the fourth curved surface is in contact with the outer surface of the fourth refrigerant pipe is wound around the outer periphery, the binding band is accommodated in the groove portion. The

  The piping fixture according to the fourth aspect of the present invention further includes a fourth curved surface, and is a third distance that is the shortest distance between the first curved surface, the second curved surface, or the third curved surface, and the fourth curved surface. The distance is less than 20 mm. Further, in the pipe fixture according to the fourth aspect, when the binding band for further holding the state in which the fourth curved surface is in contact with the outer surface of the fourth refrigerant pipe is wound around the outer periphery, the binding band is formed in the groove portion. Be contained. Thereby, when several refrigerant | coolant piping is arrange | positioned adjacently, the clearance between each refrigerant | coolant piping is further smaller and ensured more stably.

  The pipe fixture according to the fifth aspect of the present invention is the pipe fixture according to the third aspect or the fourth aspect, and the second distance is less than 15 mm.

  In the pipe fixture according to the fifth aspect of the present invention, the second distance that is the shortest distance between the first curved surface or the second curved surface and the third curved surface is less than 15 mm. Thereby, when several refrigerant | coolant piping is arrange | positioned closely, the clearance between 1st refrigerant | coolant piping or 2nd refrigerant | coolant piping and 3rd refrigerant | coolant piping is ensured still smaller. Therefore, even when the distances between adjacent refrigerant pipes are different, the clearance between the refrigerant pipes is stably ensured.

  An outdoor unit of a refrigeration apparatus according to a sixth aspect of the present invention includes a first refrigerant pipe, a second refrigerant pipe, a compressor, a pipe fixture according to any of the first to fifth aspects, and a binding band. And comprising. The second refrigerant pipe extends along a direction parallel to the direction in which the first refrigerant pipe extends. The compressor compresses the refrigerant. The binding band fixes the first refrigerant pipe and the second refrigerant pipe that are not directly connected to the compressor together with the pipe fixture.

  In the outdoor unit of the refrigeration apparatus according to the sixth aspect of the present invention, the first refrigerant pipe, the second refrigerant pipe extending along the direction parallel to the direction in which the first refrigerant pipe extends, and the compressor that compresses the refrigerant. And a pipe fixture according to any one of the first to fifth aspects, and a binding band that fixes the first refrigerant pipe and the second refrigerant pipe that are not directly connected to the compressor together with the pipe fixture. Thereby, even if it is a case where several refrigerant | coolant piping is accommodated in the inside of the outdoor unit of a freezing apparatus, predetermined clearance is ensured between each refrigerant | coolant piping. That is, in general, in an outdoor unit of a refrigeration apparatus, a plurality of refrigerant pipes are accommodated close to each other in order to achieve a compact size, but the clearance between the refrigerant pipes is stable due to vibration and inclination during transportation. It is difficult to secure. However, in the outdoor unit of the refrigeration apparatus according to the sixth aspect, a predetermined clearance is stably secured between the refrigerant pipes. Therefore, security is improved without restricting the downsizing of the device.

  In the pipe fixture according to the first aspect of the present invention, when a plurality of refrigerant pipes are arranged close to each other, the clearance between the refrigerant pipes is stably ensured. Therefore, security is improved without restricting the downsizing of the device.

  In the pipe fixture according to the second aspect of the present invention, the clearance between the refrigerant pipes is secured stably small. Therefore, downsizing of the device is promoted and the security is improved.

  In the pipe fixture according to the third aspect to the fourth aspect of the present invention, the clearance between the refrigerant pipes is further reduced and more stably secured.

  In the pipe fixture according to the fifth aspect of the present invention, even when the distance between adjacent refrigerant pipes is different, the clearance between the refrigerant pipes is stably secured.

  In the outdoor unit of the refrigeration apparatus according to the sixth aspect of the present invention, a predetermined clearance is stably secured between the refrigerant pipes in the outdoor unit of the refrigeration apparatus in which a plurality of refrigerant pipes are accommodated. Therefore, security is improved without restricting the downsizing of the device.

The schematic diagram which shows the conventional piping fixing method. The front external view of the air-conditioning system provided with the outdoor unit which concerns on one Embodiment of this invention. The refrigerant circuit diagram of an air-conditioning system. FIG. 4 is an external view showing a refrigerant pipe and the like disposed in the IV part of FIG. 3. The schematic diagram which shows the use condition at the time of using the refrigerant | coolant piping support unit containing the piping fixture which concerns on one Embodiment of this invention for C part of FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. The external appearance perspective view of the piping fixing tool which concerns on one Embodiment of this invention. The external appearance perspective view of the pipe fixing tool concerning the modification F. FIG. The top view of the piping fixture which concerns on the modification F. FIG. The schematic diagram which shows the use condition at the time of using the refrigerant | coolant piping support unit containing the piping fixture which concerns on the modification G for D part of FIG. XI-XI sectional view taken on the line of FIG. The external appearance perspective view of the pipe fixing tool concerning the modification G.

  Hereinafter, an air conditioning system 100 according to the present embodiment of the present invention will be described 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, and can be modified as appropriate without departing from the scope of the invention. In the following description, terms indicating directions such as up, down, left, right, front (front), and back (back) are used, and these directions are shown in FIG. 2 and FIG. 4 to 6, 10, and 11.

(1) Air conditioning system 100
FIG. 2 is a front external view of the air conditioning system 100 including the outdoor unit 120 according to the embodiment of the present invention. FIG. 3 is a refrigerant circuit diagram of the air conditioning system 100.

  The air conditioning system 100 is a refrigerant piping type air conditioning system, and performs cooling or heating of each room in the building by performing a vapor compression refrigeration cycle operation. The air conditioning system 100 includes an indoor unit 110 as a utilization unit and an outdoor unit 120 as a heat source unit. The air conditioning system 100 includes a gas refrigerant communication pipe GP and a liquid refrigerant communication pipe LP as refrigerant communication pipes connecting the indoor unit 110 and the outdoor unit 120.

  In the air conditioning system 100, as shown in FIG. 3, a refrigerant circuit is configured by connecting an indoor unit 110, an outdoor unit 120, a gas refrigerant communication pipe GP, and a liquid refrigerant communication pipe LP. In the air conditioning system 100, a refrigerant cycle operation is performed in which the refrigerant sealed in the refrigerant circuit is compressed, cooled or condensed, depressurized, heated or evaporated, and then compressed again. . Although it does not specifically limit as a refrigerant | coolant used with the air conditioning system 100, For example, R32 is employ | adopted.

(2) Details of configuration of air conditioning system 100 (2-1) Gas refrigerant communication pipe GP, liquid refrigerant communication pipe LP
The gas refrigerant communication pipe GP and the liquid refrigerant communication pipe LP are, for example, copper refrigerant pipes, and are installed on site when the indoor unit 110 and the outdoor unit 120 are installed at the installation location. The gas refrigerant communication pipe GP connects the indoor heat exchanger 111 (described later) and the gas side shut-off valve 22 (described later), and mainly communicates the gas refrigerant between the two. The liquid refrigerant communication pipe LP connects the indoor heat exchanger 111 and a liquid side shut-off valve 21 (described later), and mainly communicates the liquid refrigerant between them.

(2-2) Indoor unit 110
In the indoor unit 110, an indoor heat exchanger 111, an indoor fan 112, an indoor control unit (not shown), and the like are mainly disposed.

  The indoor heat exchanger 111 functions as a refrigerant evaporator during cooling operation, and functions as a refrigerant condenser or radiator during heating operation. One end of the indoor heat exchanger 111 is connected to the liquid refrigerant communication pipe LP, and the other end is connected to the gas refrigerant communication pipe GP.

  The indoor fan 112 is a blower such as a crossflow fan or a sirocco fan, for example. When the indoor fan 112 is driven, an air flow that flows into the indoor unit 110, passes through the indoor heat exchanger 111, and flows out into the room is generated.

(2-3) Outdoor unit 120
The outdoor unit 120 is installed, for example, outdoors on a rooftop of a building, a veranda, or in a basement. The outer unit 120 is configured by a substantially rectangular parallelepiped casing 121 as shown in FIG. Since the outdoor unit 120 may be arranged in a narrow space depending on the installation environment, it is generally desirable that the outdoor unit 120 be configured to be compact so that the size of the outline is minimized.

  The outdoor unit 120 mainly includes a liquid side closing valve 21, a gas side closing valve 22, a four-way switching valve 23, a gas-liquid separator 24, a compressor 25, an outdoor heat exchanger 26, The 1 motor operated valve 28, the 2nd motor operated valve 29, the receiver 30, and the bypass valve 31 are arrange | positioned, and these apparatuses are connected through refrigerant | coolant piping. In the outdoor unit 120, an outdoor fan 27, an outdoor control unit (not shown), a support member 35, a refrigerant pipe support unit 40, and the like are disposed.

(2-3-1) Refrigerant piping The refrigerant piping is, for example, copper piping. The refrigerant pipe has a linear portion that extends linearly, a curved portion that curves in a U shape, an L shape, or the like. The refrigerant pipe mainly includes a first pipe P1 to an eleventh pipe P11. In addition, in order to make the size of the outer shell of the outdoor unit 120 compact, the pipes are arranged close to each other while ensuring as small a clearance as possible inside the outdoor unit 120.

  Specifically, the first pipe P <b> 1 has one end connected to the gas side shut-off valve 22 and the other end connected to the four-way switching valve 23. The second pipe P2 has one end connected to the four-way switching valve 23 and the other end connected to the refrigerant inlet of the gas-liquid separator 24. The third pipe P3 has one end connected to the refrigerant outlet of the gas-liquid separator 24 and the other end connected to the suction port of the compressor 25. The fourth pipe P <b> 4 has one end connected to the discharge port of the compressor 25 and the other end connected to the four-way switching valve 23. The fifth pipe P5 has one end connected to the four-way switching valve 23 and the other end connected to the outdoor heat exchanger 26.

  The sixth pipe P <b> 6 has one end connected to the outdoor heat exchanger 26 and the other end connected to the first motor operated valve 28. The sixth pipe P6 includes a fourth straight pipe portion 14 (corresponding to “first refrigerant pipe” in the claims) and a fifth straight pipe portion 15 (claims) extending along the vertical direction (vertical direction). And the sixth straight pipe portion 16 (see FIG. 4).

  The seventh pipe P7 has one end connected to the first motor operated valve 28 and the other end connected to a first port (described later) of the receiver 30. The seventh pipe P7 includes a third straight pipe portion 13 (corresponding to a “fourth refrigerant pipe” recited in the claims) extending along the vertical direction (vertical direction) (see FIG. 4).

  The eighth pipe P8 has one end connected to a second port (described later) of the receiver 30 and the other end connected to the second motor operated valve 29. The eighth pipe P8 includes a second straight pipe portion 12 (corresponding to “third refrigerant pipe” recited in the claims) extending along the vertical direction (vertical direction) (see FIG. 4).

  The ninth pipe P9 has one end connected to a third port (described later) of the receiver 30 and the other end connected to the bypass valve 31. The tenth pipe P10 has one end connected to the bypass valve 31 and the other end connected to the second pipe P2.

  The eleventh pipe P11 has one end connected to the second motor operated valve 29 and the other end connected to the liquid side shut-off valve 21. The 11th piping P11 contains the 1st straight pipe part 11 extended along a perpendicular direction (up-down direction) (refer FIG. 4).

  The sixth pipe P6, the seventh pipe P7, the eighth pipe P8, and the eleventh pipe P11 are not directly connected to the compressor 25. In other words, the first straight pipe part 11, the second straight pipe part 12, the third straight pipe part 13, the fourth straight pipe part 14, the fifth straight pipe part 15, and the sixth straight pipe part 16 are connected to the compressor 25. It can be said that the refrigerant piping is not directly connected.

(2-3-2) Liquid side closing valve 21 and gas side closing valve 22
The liquid side closing valve 21 and the gas side closing valve 22 are manual valves that are closed when the pump is down. The liquid side shut-off valve 21 has one end connected to the liquid refrigerant communication pipe LP and the other end connected to the eleventh pipe P11. The gas side closing valve 22 has one end connected to the gas refrigerant communication pipe GP and the other end connected to the first pipe P1.

(2-3-3) Four-way selector valve 23
The four-way switching valve 23 is a mechanism for switching the direction in which the refrigerant flows in the refrigerant circuit. In the present embodiment, the four-way switching valve 23 is a four-way valve connected to the first pipe P1, the second pipe P2, the fourth pipe P4, and the fifth pipe P5.

  In the air conditioning system 100, during the cooling operation, the indoor heat exchanger 111 functions as a refrigerant evaporator, and the outdoor heat exchanger 26 functions as a refrigerant condenser or radiator. In order for the indoor heat exchanger 111 and the outdoor heat exchanger 26 to function in this way, the four-way switching valve 23 connects the first pipe P1 and the second pipe P2 and the fourth pipe P4 during the cooling operation. The fifth pipe P5 is connected (see the solid line of the four-way switching valve 23 in FIG. 3).

  Further, in the air conditioning system 100, during the heating operation, the indoor heat exchanger 111 functions as a refrigerant condenser or radiator, and the outdoor heat exchanger 26 functions as a refrigerant evaporator. In order for the indoor heat exchanger 111 and the outdoor heat exchanger 26 to function in this way, the four-way switching valve 23 connects the first pipe P1 and the fourth pipe P4 during the heating operation, and the second pipe P2. The fifth pipe P5 is connected (see the broken line of the four-way switching valve 23 in FIG. 3).

(2-3-4) Gas-liquid separator 24, compressor 25
The gas-liquid separator 24 is a container attached to the outside of the compressor 25. The gas-liquid separator 24 has a function of suppressing liquid refrigerant from flowing into the compressor 25. The refrigerant inlet of the gas-liquid separator 24 is connected to the second pipe P2. The refrigerant outlet of the gas-liquid separator 24 is connected to the third pipe P3.

  The compressor 25 is a positive displacement compressor such as a scroll method or a rotary method, and has a hermetic structure with a built-in compressor motor. A third pipe P <b> 3 is connected to the suction port of the compressor 25. The compressor 25 sucks the low-pressure refrigerant into the compressor 25 through the third pipe P3. The compressor 25 compresses the sucked low-pressure refrigerant. A fourth pipe P4 is connected to the discharge port of the compressor 25. The compressor 25 discharges the compressed high-temperature and high-pressure gas refrigerant through the discharge port.

(2-3-5) Outdoor heat exchanger 26 and outdoor fan 27
The outdoor heat exchanger 26 exchanges heat with the air flow generated by the outdoor fan 27, thereby functioning as a refrigerant condenser or radiator during cooling operation and as a refrigerant evaporator during heating operation. The outdoor heat exchanger 26 has one end connected to the fifth pipe P5 and the other end connected to the sixth pipe P6.

  The outdoor fan 27 is a blower such as a propeller fan, for example. When the outdoor fan 27 is driven, an air flow that flows into the outdoor unit 120, passes through the outdoor heat exchanger 26, and flows out of the outdoor unit 120 is generated.

(2-3-6) First electric valve 28, second electric valve 29
The first motor-operated valve 28 and the second motor-operated valve 29 are motor-operated valves capable of adjusting the opening degree, for example. The first electric valve 28 has one end connected to the sixth pipe P6 and the other end connected to the seventh pipe P7. The first motor operated valve 28 is fully opened during the cooling operation, and depressurizes the refrigerant according to the opening degree during the heating operation. The second motor operated valve 29 has one end connected to the eighth pipe P8 and the other end connected to the eleventh pipe P11. The second motor operated valve 29 is fully opened during the heating operation, and depressurizes the refrigerant according to the opening degree during the cooling operation.

(2-3-7) Receiver 30 and bypass valve 31
The receiver 30 is a container for storing surplus refrigerant generated due to the refrigerant flow rate flowing through the refrigerant circuit being different between the cooling operation and the heating operation. The receiver 30 is formed with a first port and a second port (not shown) near the top for allowing the refrigerant to flow in or out. The receiver 30 has a third port (not shown) for allowing the gas refrigerant to flow out near the top. The receiver 30 is connected to the seventh pipe P7 via the first port, is connected to the eighth pipe P8 via the second port, and is connected to the ninth pipe P9 via the third port.

  In the receiver 30, during the cooling operation, the refrigerant flows in through the first port, and the refrigerant flows out through the second port. Further, in the receiver 30, during the heating operation, the refrigerant flows in through the second port, and the refrigerant flows out through the first port. Further, the refrigerant flowing into the receiver 30 is stored in the receiver 30 and separated into gas and liquid. The gas refrigerant out of the refrigerant separated from the gas and liquid in the receiver 30 flows out of the receiver 30 through the third port.

  The bypass valve 31 is an electric valve capable of adjusting the opening, for example. The bypass valve 31 has one end connected to the ninth pipe P9 and the other end connected to the tenth pipe P10. When the bypass valve 31 is opened, the ninth pipe P9 and the tenth pipe P10 communicate with each other, and the gas refrigerant flowing out from the receiver 30 is bypassed to the second pipe P2.

(2-3-8) Outdoor Control Unit The outdoor control unit is a microcomputer that includes a CPU, a memory, and the like. The outdoor control unit controls various sensors and operations of each unit included in the outdoor unit 120. For example, the outdoor control unit controls the start / stop of the compressor 25 and adjusts the opening degrees of the first electric valve 28, the second electric valve 29, and the bypass valve 31.

(2-3-9) Support member 35
FIG. 4 is an external view showing a refrigerant pipe and the like disposed in the IV portion of FIG. The support member 35 is a resin member that fixes two pipes. The support member 35 has a function of suppressing contact between adjacent refrigerant pipes in a part where two refrigerant pipes are close to each other like the A part or the B part in FIG. 4. The support member 35 mainly has two engaging portions 351 and a connecting portion 352.

  The engaging portion 351 has a curved portion having a shape along the outer shape of the refrigerant pipe, and the refrigerant pipe is in contact with and engaged with the inner surface side of the curved portion. The connecting portion 352 extends between the two engaging portions 351 and connects the two.

  In the A part or B part shown in FIG. 4, the support member 35 configured in the above-described manner is disposed, so that the distance between the two pipes is kept constant and the pipes are prevented from contacting each other. Has been.

(2-3-10) Refrigerant piping support unit 40
Hereinafter, the refrigerant pipe support unit 40 will be described with reference to FIGS. 4 to 7. FIG. 5 is a schematic view showing a usage state when the refrigerant pipe support unit 40 including the pipe fixture 50 according to the embodiment of the present invention is used in a portion C of FIG. 4. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is an external perspective view of the pipe fixture 50.

  In the outdoor unit 120, a plurality of refrigerant pipes are arranged close to each other in order to make the size of the outline compact. For example, in part C of FIG. 4, four refrigerant pipes are arranged close to each other. Specifically, in the portion C, the second straight pipe part 12 of the eighth pipe P8, the third straight pipe part 13 of the seventh pipe P7, the fourth straight pipe part 14 of the sixth pipe P6, and the sixth pipe P6. And the fifth straight pipe portion 15 are close to each other. In addition, in the said C part, the distance between each piping is further closer than the A part and B part of FIG.

  Specifically, the fourth straight pipe portion 14 extends along the vertical direction (vertical direction). The fifth straight pipe portion 15 extends along the vertical direction (vertical direction) so as to extend substantially parallel to the fourth straight pipe portion 14. The second straight pipe portion 12 extends along the vertical direction (vertical direction) so as to extend substantially parallel to the fourth straight pipe portion 14 and the fifth straight pipe portion 15. The third straight pipe portion 13 extends along the vertical direction (vertical direction) so as to extend substantially parallel to the fourth straight pipe portion 14, the fifth straight pipe portion 15, and the second straight pipe portion 12.

  In the outdoor unit 120, the refrigerant pipe support unit 40 is disposed, for example, at a portion C in order to suppress contact between these adjacent refrigerant pipes during transportation and operation. That is, the refrigerant pipe support unit 40 plays a role of ensuring clearances between the refrigerant pipes arranged close to each other in the outdoor unit 120.

  The refrigerant pipe support unit 40 mainly includes a pipe fixture 50 and a bundling unit 60.

(2-3-10-1) Piping fixture 50
The pipe fixture 50 is a member attached to the refrigerant pipe in order to ensure the clearance between the refrigerant pipes. The pipe fixture 50 is formed by processing a rubber base portion 50a which is an elastic member. Specifically, as shown in FIG. 6, the base portion 50a is processed into a substantially X shape in plan view. In other words, the top surface and the bottom surface of the base portion 50a have a substantially X shape.

  Moreover, the base part 50a has a side part which connects a top | upper surface and a bottom face. More specifically, as shown in FIG. 7, the base part 50 a has four side parts including a first side part 51, a second side part 52, a third side part 53, and a fourth side part 54. Yes. Specifically, the first side surface portion 51 faces the front direction in FIGS. 5 and 6. Moreover, the 2nd side part 52 faces the right direction. Moreover, the 3rd side part 53 faces the back direction. The fourth side surface portion 54 faces leftward.

  A groove portion 55 extending in the horizontal direction is formed on each side surface portion. A band portion 61 (described later) of the bundling unit 60 is wound around the groove portion 55 when the refrigerant pipe support unit 40 is used. 5 and 7, the groove portion 55 is formed such that its vertical length L2 (see FIG. 7) is longer than the vertical length L1 of the band portion 61 (see FIG. 5). In other words, the width of the groove portion 55 is formed longer than the width of the band portion 61. Further, the depth of the groove portion 55 is ensured to be longer than the thickness of the band portion 61. Since the groove part 55 is formed in such a manner, the band part 61 is accommodated in the groove part 55 when the band part 61 is wound around the groove part 55. That is, the groove part 55 is formed in a size that can accommodate the band part 61.

  The base portion 50a has a plurality of curved surfaces that are curved in a shape along the outer shape of the refrigerant pipe between the side surface portions. Each refrigerant pipe abuts on each curved surface when the refrigerant pipe support unit 40 is used.

  Specifically, the base portion 50 a has a first curved surface 56 that extends from the top surface to the bottom surface between the first side surface portion 51 and the fourth side surface portion 54. In other words, the first curved surface 56 extends from the first side surface portion 51 to the fourth side surface portion 54 between the top surface and the bottom surface. When the refrigerant pipe support unit 40 is used, the fourth straight pipe portion 14 of the sixth pipe P6 extending along the vertical direction (vertical direction) abuts on the first curved surface 56. That is, it can be said that the 1st curved surface 56 is extended along the direction where the 4th straight pipe part 14 is extended, curving along the external shape of the 4th straight pipe part 14 which contact | abuts at the time of use.

  The base portion 50 a has a second curved surface 57 extending from the top surface to the bottom surface between the first side surface portion 51 and the second side surface portion 52. In other words, the second curved surface 57 extends from the first side surface portion 51 to the second side surface portion 52 between the top surface and the bottom surface. The fifth straight pipe portion 15 of the sixth pipe P <b> 6 that extends along the vertical direction (vertical direction) abuts on the second curved surface 57 when the refrigerant pipe support unit 40 is used. That is, it can be said that the second curved surface 57 extends along the direction in which the fifth straight pipe portion 15 extends while being curved along the outer shape of the fifth straight pipe portion 15 that abuts during use.

  The base portion 50 a has a third curved surface 58 extending from the top surface to the bottom surface between the second side surface portion 52 and the third side surface portion 53. In other words, the third curved surface 58 extends from the second side surface portion 52 to the third side surface portion 53 between the top surface and the bottom surface. When the refrigerant pipe support unit 40 is used, the second straight pipe portion 12 of the eighth pipe P8 extending in the vertical direction (vertical direction) contacts the third curved surface 58. That is, it can be said that the third curved surface 58 extends along the direction in which the second straight pipe portion 12 extends while being curved along the outer shape of the second straight pipe portion 12 that abuts during use.

  The base portion 50a has a fourth curved surface 59 extending from the top surface to the bottom surface between the third side surface portion 53 and the fourth side surface portion 54. In other words, the fourth curved surface 59 extends from the third side surface portion 53 to the fourth side surface portion 54 between the top surface and the bottom surface. When the refrigerant piping support unit 40 is used, the fourth straight surface portion 13 of the seventh piping P7 extending along the vertical direction (vertical direction) is in contact with the fourth curved surface 59. That is, it can be said that the fourth curved surface 59 extends along the direction in which the third straight pipe portion 13 extends while being curved along the outer shape of the third straight pipe portion 13 that abuts during use.

  In the present embodiment, the first distance d1 that is the shortest distance between the first curved surface 56 and the second curved surface 57 is 15 mm. Similarly, the second distance d2, which is the shortest distance between the second curved surface 57 and the third curved surface 58, is 15 mm. Similarly, the third distance d3 that is the shortest distance between the third curved surface 58 and the fourth curved surface 59 is 15 mm. Similarly, the fourth distance d4, which is the shortest distance between the first curved surface 56 and the fourth curved surface 59, is 15 mm. In summary, the first distance d1, the second distance d2, the third distance d3, and the fourth distance d4 are all 15 mm and less than 20 mm.

(2-3-10-2) Bundling unit 60
The bundling unit 60 is a member that holds a state in which the pipe fixture 50 is attached to each refrigerant pipe. The bundling unit 60 includes a band part 61 and a fixing part 62.

  The band part 61 is a band member made of synthetic resin. The band portion 61 is provided with protrusions at regular intervals (not shown) so that the surface portion has a sawtooth shape. The band portion 61 is wound so as to bundle the pipe fixture 50 and each refrigerant pipe when the refrigerant pipe support unit 40 is used. Specifically, the band portion 61 is wound so as to contact the groove portion 55 and the outer surface of each refrigerant pipe (more specifically, the portion of the outer surface of each refrigerant pipe that does not contact each curved surface).

  The fixing part 62 is provided at one end of the band part 61. A through hole 621 that penetrates the other end of the band portion 61 is formed in the fixing portion 62. The edge part which comprises the through-hole 621 is provided with the latching | locking part caught in the protrusion of the surface of the band part 61 (illustration omitted). By providing such a locking portion, when the band portion 61 is inserted from one of the through holes 621, the fixing portion 62 can pull the band portion 61 from the other. Even if the band portion 61 is pulled from the one side, the engaging portion is caught by the protrusion of the band portion 61 and stopped. That is, the fixing portion 62 is configured such that once the band portion 61 is inserted into the through hole 621, the locking portion is caught by the protrusion of the band portion 61 and does not return in the direction in which the band portion 61 has been inserted. ing. Thereby, the band part 61 is prevented from falling off from the through hole 621.

(3) Usage Mode of Refrigerant Pipe Support Unit 40 When the refrigerant pipe support unit 40 is used, first, the pipe fixture 50 is attached to each refrigerant pipe in a portion where a clearance is to be secured between adjacent refrigerant pipes. Specifically, the pipe fixture 50 is mounted such that each side surface portion is located between each refrigerant pipe. For example, when the pipe fixing tool 50 is mounted in the portion C of FIG. 4, the first side surface portion 51 is located between the fourth straight pipe portion 14 and the fifth straight pipe portion 15, and the second side surface portion 52 is It is located between the fifth straight pipe portion 15 and the second straight pipe portion 12, the third side face portion 53 is located between the second straight pipe portion 12 and the third straight pipe portion 13, and the fourth side face portion 54 is located. It mounts | wears so that it may be located between the 3rd straight pipe part 13 and the 4th straight pipe part 14 (refer FIG. 6).

  When the pipe fixture 50 is attached to the refrigerant pipe in this manner, each curved surface comes into contact with the outer surface of each refrigerant pipe. Here, since each curved surface exhibits a shape along the outer shape of the refrigerant pipe that comes into contact, in this case, the contact area between the curved surface and the refrigerant pipe is increased. Further, since the base portion 50a is made of rubber, which is an elastic member, the contact area between each refrigerant pipe and each curved surface is further increased by the elastic force.

  Here, the pipe fixture 50 is disposed between the number of refrigerant pipes corresponding to the number of curved surfaces. In the present embodiment, since the pipe fixing tool 50 has four curved surfaces, it is arranged between two to four refrigerant pipes and fixes each refrigerant pipe.

  Next, in a state where the pipe fixture 50 is attached to the refrigerant pipe, the band part 61 of the bundling unit 60 is brought into contact with the groove part 55 and the outer surface of each refrigerant pipe (more specifically, the part not in contact with each curved surface). Wrap to touch. The groove portion 55 is formed so that the width thereof is longer than the width of the band portion 61, and the depth thereof is secured to be longer than the thickness of the band portion 61, so that when the band portion 61 is wound, the band portion 61 is accommodated in the groove 55.

  Then, one end of the band portion 61 is inserted into the through hole 621 of the fixing portion 62, and the band portion 621 is pulled and tightened. Thereby, the piping fixture 50 and each refrigerant | coolant piping are bundled. That is, adjacent refrigerant pipes are bundled and fixed in a state where a predetermined clearance is secured. In the present embodiment, since the shortest distance between the curved surfaces is 15 mm, the clearance between the refrigerant pipes is kept approximately 15 mm. That is, the clearance between the refrigerant pipes is kept constant according to the shortest distance between the curved surfaces of the pipe fixture 50.

  By using the refrigerant pipe support unit 40 in the above-described manner, even if the refrigerant pipes are close to each other, for example, in an environment where the distance between the refrigerant pipes is less than 20 mm, A predetermined clearance for suppressing contact is ensured, and the clearance can be kept small and stable. In the present embodiment, the pipe fixture 50 is disposed between the fourth straight pipe part 14, the fifth straight pipe part 15, the second straight pipe part 12, and the third straight pipe part 13. By fixing each refrigerant pipe together with the band portion 61, the function of maintaining a constant clearance between the refrigerant pipes is achieved.

  Moreover, the groove part 55 is formed in the outer surface of the pipe fixing tool 50, and since the band part 61 is accommodated in the groove part 55, the binding unit 60 falls off and the pipe fixing tool 50 is detached from the refrigerant pipe. It is suppressed. That is, when the band part 61 is not sufficiently tightened, it is also assumed that the band part 61 slides and falls due to vibration during transportation or operation of the outdoor unit 120. The part 61 is caught and the band part 61 (binding unit 60) is prevented from falling off. Thereby, the clearance between refrigerant | coolant piping is stably maintained.

(4) Features (4-1)
In the above embodiment, the pipe fixture 50 includes the first curved surface 56 and the second curved surface 57. Further, the pipe fixture 50 has a groove portion 55 formed on the outer surface thereof, the first curved surface 56 abuts on the outer surface of the fourth straight pipe portion 14 and the second curved surface 57 of the fifteenth straight pipe portion 15. When the band portion 61 for holding the state in contact with the outer surface is wound around the outer periphery, the band portion 61 is accommodated in the groove portion 55. Thereby, even if it is a case where several refrigerant | coolant piping is arrange | positioned closely like the outdoor unit 120, predetermined | prescribed between each refrigerant | coolant piping by using the refrigerant | coolant piping support unit 40 containing the piping fixing tool 50 is used. Clearance is ensured. Further, even if the band portion 61 is about to drop off, the band portion 61 comes into contact with the edge of the groove portion 55 and stops, so that the dropping of the band portion 61 is suppressed. Therefore, the clearance between each refrigerant piping is ensured stably. Therefore, the outdoor unit 120 is excellent in security without restricting downsizing.

(4-2)
In the said embodiment, the 1st distance d1 which is the shortest distance of the 1st curved surface 56 of the piping fixing tool 50 and the 2nd curved surface 57 is less than 20 mm. Thereby, the clearance between each refrigerant | coolant piping is ensured stably small.

(4-3)
In the above embodiment, the pipe fixture 50 further includes the third curved surface 58, and the second distance d2 that is the shortest distance between the second curved surface 57 and the third curved surface 58 is less than 20 mm. Further, the upper pipe fixing tool 50 has a band portion around the groove portion 55 when the band portion 61 for holding the third curved surface 58 in contact with the outer surface of the second straight pipe portion 12 is wound around the outer periphery thereof. 61 is housed. Thereby, even if it is a case where several refrigerant | coolant piping is arrange | positioned closely, the clearance between each refrigerant | coolant piping is ensured stably by using the refrigerant | coolant piping support unit 40 containing the piping fixing tool 50. FIG. It has come to be.

(4-4)
In the above embodiment, the pipe fixture 50 further includes the fourth curved surface 59, and the third distance d3 that is the shortest distance between the third curved surface 58 and the fourth curved surface 59 is less than 20 mm. Further, when the band fixture 61 is further wound around the outer periphery of the pipe fixture 50 to hold the state in which the fourth curved surface 59 is in contact with the outer surface of the third straight pipe portion 13, 61 is housed. Thereby, even if it is a case where several refrigerant | coolant piping is arrange | positioned closely, the clearance between each refrigerant | coolant piping is ensured stably by using the refrigerant | coolant piping support unit 40 containing the piping fixing tool 50. FIG. It has come to be.

(4-5)
In the said embodiment, the outdoor unit 120 is the 4th straight pipe part 14, the 5th straight pipe part 15 extended along the direction parallel to the direction where the 4th straight pipe part 14 is extended, the compressor 25, A pipe fixing tool 50; and a band part 61 (binding unit 60) for fixing the fourth straight pipe part 14 and the fifth straight pipe part 15 that are not directly connected to the compressor 25 together with the pipe fixing tool 50. Yes. That is, in general, in an outdoor unit of a refrigeration apparatus, a plurality of refrigerant pipes are accommodated close to each other in order to realize a compact outer size, and each of them is subjected to vibration, inclination, etc. during transportation. It is difficult to ensure a stable clearance between the refrigerant pipes. However, the outdoor unit 120 includes the refrigerant pipe support unit 40 including the pipe fixture 50, so that a predetermined clearance is stably secured between the refrigerant pipes.

(5) Modification (5-1) Modification A
In the said embodiment, although the air conditioning system 100 was employ | adopted as a freezing apparatus, it is not limited to this. For example, instead of the air conditioning system 100, other refrigeration apparatuses such as a water heater and a dehumidifier may be employed.

  Moreover, although the air conditioning system 100 was provided with the indoor unit 110 and the outdoor unit 120 one each, it is not limited to this, There may be two or more indoor units 110 or the outdoor units 120.

(5-2) Modification B
In the embodiment described above, the pipe fixture 50 is made of rubber, which is an elastic member, as a material. However, the present invention is not limited to this, and the pipe fixture 50 may be made of a material other than rubber.

(5-3) Modification C
In the above embodiment, the pipe fixture 50 is disposed at a location where four refrigerant pipes as shown in part C of FIG. 4 are close to each other. However, the present invention is not limited to this, and the pipe fixture 50 is disposed in place of the support member 35 at a location where two refrigerant pipes are close to each other as shown in the A part and the B part of FIG. Also good. Moreover, the pipe fixture 50 may be arrange | positioned in the location where three refrigerant | coolant piping as shown, for example to D part of FIG. 4 is adjoining.

(5-4) Modification D
In the above embodiment, the groove portion 55 of the pipe fixture 50 is formed so as to accommodate the band portion 61, but may be formed so as to accommodate the fixing portion 62 together with the band portion 61. In such a case, the groove 55 may be formed so that the width thereof is larger than the width of the fixed portion 62 and the depth thereof is deeper than the depth of the fixed portion 62.

(5-5) Modification E
In the above embodiment, the pipe fixing tool 50 is configured so that the first distance d1, the second distance d2, the third distance d3, and the fourth distance d4 are all 15 mm. However, the present invention is not limited to this, and the first distance d1 may be longer or shorter than this, for example, 10 mm or 18 mm. Further, any or all of the second distance d2, the third distance d3, and the fourth distance d4 may be less than 15 mm, or may be 20 mm or more. In addition, any or all of the first distance d1, the second distance d2, the third distance d3, and the fourth distance d4 are not necessarily the same length, and may be different lengths.

(5-6) Modification F
In the said embodiment, although the pipe fixing tool 50 was comprised in the aspect as shown in FIGS. 5-7, it is not limited to this. For example, the pipe fixture 50 may be omitted for one of the third curved surface 58 and the fourth curved surface 59.

  Further, the pipe fixture 50 may be omitted for both the third curved surface 58 and the fourth curved surface 59. In such a case, for example, a pipe fixture 70 as shown in FIGS. 8 and 9 is configured. FIG. 8 is an external perspective view of the pipe fixture 70. FIG. 9 is a plan view of the pipe fixture 70.

  Unlike the pipe fixture 50, the pipe fixture 70 is configured in a substantially T shape in plan view as shown in FIG. That is, the top surface and the bottom surface of the pipe fixture 70 are substantially T-shaped. Unlike the pipe fixture 50, the pipe fixture 70 does not have the third curved surface 58 and the fourth curved surface 59. The pipe fixture 70 is disposed between two refrigerant pipes at a place where two refrigerant pipes are close to each other as shown in, for example, the A part and the B part of FIG. To keep small.

(5-7) Modification G
In the above-described embodiment, the pipe fixture 50 is configured in a manner as shown in FIGS. 5 to 7, but is not limited to this. For example, like the pipe fixture 80 shown in FIGS. 10 to 12. It may be configured. Hereinafter, the refrigerant | coolant piping support unit 40a provided with the piping fixing tool 80 and the piping fixing tool 80 is demonstrated. In addition, description is abbreviate | omitted about the part which is common with the piping fixing tool 50 and the refrigerant | coolant piping support unit 40a, and a different point is demonstrated.

  FIG. 10 is a schematic diagram showing a use state when the refrigerant pipe support unit 40a including the pipe fixture 80 is used in the portion D of FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. FIG. 12 is an external perspective view of the pipe fixture 80.

  The refrigerant pipe support unit 40a is disposed at a location where three refrigerant pipes are close to each other as shown in a part D of FIG. The refrigerant pipe support unit 40 a has a pipe fixture 80 instead of the pipe fixture 50. For example, when the refrigerant pipe support unit 40a is used in the D part of FIG. 4, the pipe fixture 80 includes the sixth straight pipe part 16 positioned below the fifth straight pipe part 15 and the first straight pipe part 11. And the second straight pipe portion 12, and by fixing each refrigerant pipe together with the band portion 61 (bundling unit 60), the function of maintaining a constant clearance between the refrigerant pipes is achieved.

  The pipe fixture 80 is configured by processing a rubber base portion 80a which is an elastic member. Specifically, as shown in FIG. 11, the base portion 80a is processed into a linear shape in plan view.

  The base portion 80a has a side surface portion that connects the top surface and the bottom surface. More specifically, the base portion 80 a has two side portions including a first side portion 81 and a second side portion 82. Specifically, the first side surface portion 81 faces the front direction in FIGS. 10 and 11. Moreover, the 2nd side part 82 faces the back direction.

  A groove 85 extending in the horizontal direction is formed on each side surface. The band portion 61 of the bundling unit 60 is wound around the groove portion 85 when the refrigerant pipe support unit 40a is used. 10 and 12, the groove portion 85 is formed such that the vertical length L <b> 3 is longer than the vertical length L <b> 1 of the band portion 61. In other words, the width of the groove portion 85 is formed longer than the width of the band portion 61. Further, the depth of the groove portion 85 is ensured to be longer than the thickness of the band portion 61. Since the groove portion 85 is formed in such a manner, the band portion 61 is accommodated in the groove portion 85 when the band portion 61 is wound around the groove portion 85. That is, the groove 85 is formed in a size that can accommodate the band portion 61.

  In addition, the base portion 80a has a plurality of curved surfaces that are curved in a shape along the outer shape of the refrigerant pipe between the side surface portions.

  Specifically, the base portion 80a has a first curved surface 86 that extends from the top surface to the bottom surface at a position between the first side surface portion 81 and the second side surface portion 82. The first curved surface 86 is formed near the center of the pipe fixture 80 as shown in FIGS. 11 and 12. Further, the second side surface portion 82 is formed with a notch portion nt connected to the first curved surface 86 (see the alternate long and short dash line in FIGS. 11 and 12). When the pipe fixture 80 is attached to the refrigerant pipe, the refrigerant pipe passes through the notch nt and reaches the first curved surface 86 and comes into contact therewith.

  The base portion 80 a has a second curved surface 87 extending from the top surface to the bottom surface between one end of the first side surface portion 81 and one end of the second side surface portion 82. In other words, the second curved surface 87 extends from one end of the first side surface portion 81 to one end of the second side surface portion 82 between the top surface and the bottom surface.

  The base portion 80 a has a third curved surface 88 extending from the top surface to the bottom surface between the other end of the first side surface portion 81 and the other end of the second side surface portion 82. In other words, the third curved surface 88 extends from the other end of the first side surface portion 81 to the other end of the second side surface portion 82 between the top surface and the bottom surface.

  Each curved surface comes into contact with each refrigerant pipe when the refrigerant pipe support unit 40a is used. Specifically, when the refrigerant pipe support unit 40a is used in the portion D of FIG. 4, the sixth straight pipe portion 16 of the sixth pipe P6 is formed on the first curved surface 86 as shown in FIGS. The first straight pipe portion 11 of the eleventh pipe P11 comes into contact with the second curved surface 87, and the second straight pipe portion 12 of the eighth pipe P8 comes into contact with the third curved surface 88 (in this case, The sixth straight pipe portion 16 corresponds to “first refrigerant pipe” recited in the claims, the first straight pipe portion 11 corresponds to “second refrigerant pipe”, and the second straight pipe portion 12 corresponds to “third refrigerant pipe”. Corresponds to "refrigerant piping").

  Here, the first distance d5 which is the shortest distance between the first curved surface 86 and the second curved surface 87 is, for example, 15 mm. The second distance d6 that is the shortest distance between the second curved surface 87 and the third curved surface 88 is, for example, 10 mm. Thus, in the pipe fixture 80, the first distance d5 and the second distance d6 are different. In addition, the 1st distance d5 and the 2nd distance d6 are not limited to the said numerical value, and can be changed suitably. For example, the first distance d5 may be 11 mm or 14 mm. The second distance d6 may be 8 mm or 12 mm.

  As described above, in the pipe fixture 80, the second distance d6 that is the shortest distance between the first curved surface 86 and the third curved surface 88 is less than 15 mm. Thereby, the clearance of the 6th straight pipe part 16 and the 2nd straight pipe part 12 is ensured small. That is, when a plurality of refrigerant pipes are arranged close to each other, the clearance between the refrigerant pipes is ensured to be small and stable.

  Further, the pipe fixture 80 has a first distance d5 that is the shortest distance between the first curved surface 86 and the second curved surface 87, and a second distance d6 that is the shortest distance between the first curved surface 86 and the third curved surface 88. Specifically, the first distance d5 is less than 20 mm and the second distance d6 is less than 15 mm. By mounting such a pipe fixture 80, a predetermined clearance which is different between the refrigerant pipes is ensured even in a situation where a plurality of refrigerant pipes are arranged close to each other. That is, even when the distance between the pipes is different, the clearance between the pipes is ensured to be small and stable.

  Moreover, in the piping fixture 80, as shown in FIG. 11, each curved surface is located in a line. Thereby, the pipe fixture 80 and the refrigerant pipe support unit 40a are effective when fixing refrigerant pipes arranged in a straight line in a plan view.

(5-8) Modification H
In the above embodiment, the bundling unit 60 has a configuration in which a protrusion is provided on the surface of the band portion 61 and a locking portion is provided in the fixing portion 62 so that the band portion 61 does not fall out from the through hole 621 of the fixing portion 62. . However, in the bundling unit 60, the configuration for fixing the state in which the band portion 61 is wound is not particularly limited, and any configuration may be used. For example, you may comprise in the aspect which gives the adhesive force to the end of the band part 61, and hold | maintains the wound state with the said adhesive force.

  Moreover, although the band part 61 was made of a synthetic resin, the material is not limited to this and can be appropriately changed.

  INDUSTRIAL APPLICATION This invention can be utilized for the outdoor unit of the piping fixing tool which ensures the clearance between piping, and the refrigerating apparatus which has several refrigerant | coolant piping.

11 1st straight pipe part (2nd refrigerant | coolant piping)
12 Second straight pipe section (third refrigerant pipe)
13 3rd straight pipe part (4th refrigerant | coolant piping)
14 Fourth straight pipe section (first refrigerant pipe)
15 5th straight pipe part (2nd refrigerant | coolant piping)
16 6th straight pipe part (1st refrigerant | coolant piping)
25 Compressor 26 Outdoor heat exchanger 27 Outdoor fan 28 First electric valve 29 Second electric valve 30 Receiver 31 Bypass valve 35 Support member 40, 40a Refrigerant pipe support unit 50, 70, 80 Pipe fixture 50a, 80a Base 51 81 First side surface portion 52, 82 Second side surface portion 53 Third side surface portion 54 Fourth side surface portion 55, 85 Groove portion 56, 86 First curved surface 57, 87 Second curved surface 58, 88 Third curved surface 59 First Four curved surfaces 60 Bundling unit 61 Band part (bundling band)
62 Fixing part 621 Through hole 100 Air conditioning system (refrigeration equipment)
110 indoor unit 111 indoor heat exchanger 112 indoor fan 120 outdoor unit 121 casing d1, d5 first distance d2, d6 second distance d3 third distance d4 fourth distance P6 sixth pipe P7 seventh pipe P8 eighth pipe P11 second 11 piping

JP 2006-125699 A

Claims (6)

A binding band disposed between the first refrigerant pipe (14, 16) and the second refrigerant pipe (11, 15) extending along a direction parallel to a direction in which the first refrigerant pipe extends. (61) A pipe fixture (50, 70, 80) for fixing the first refrigerant pipe and the second refrigerant pipe together,
A first curved surface (56, 86) curved in a shape along the outer surface of the first refrigerant pipe;
A second curved surface (57, 87) curved in a shape along the outer surface of the second refrigerant pipe;
With
Grooves (55, 85) are formed on the outer surface,
The binding band for holding the state where the first curved surface is in contact with the outer surface of the first refrigerant pipe and the second curved surface is in contact with the outer surface of the second refrigerant pipe is wound around the outer periphery thereof. Sometimes, the binding band is accommodated in the groove,
Piping fixture (50, 70, 80). The first distance (d1) that is the shortest distance between the first curved surface and the second curved surface is less than 20 mm.
The piping fixture according to claim 1. Between the first refrigerant pipe, the second refrigerant pipe, and a third refrigerant pipe (12) extending along a direction parallel to a direction in which the first refrigerant pipe or the second refrigerant pipe extends. Disposed, further fixing the third refrigerant pipe,
A third curved surface (58, 88) that curves in a shape along the outer surface of the third refrigerant pipe;
The second distance (d2, d6) that is the shortest distance between the first curved surface or the second curved surface and the third curved surface is less than 20 mm,
When the binding band for further holding the third curved surface in contact with the outer surface of the third refrigerant pipe is wound around the outer periphery thereof, the binding band is accommodated in the groove portion;
The piping fixture according to claim 1 or 2. The first refrigerant pipe, the second refrigerant pipe, the third refrigerant pipe, the first refrigerant pipe, the second refrigerant pipe, or the third refrigerant pipe along a direction parallel to the extending direction. A fourth refrigerant pipe (13) extending to further fix the fourth refrigerant pipe,
A fourth curved surface (59) curved in a shape along the outer surface of the fourth refrigerant pipe;
The third distance (d4) that is the shortest distance between the first curved surface, the second curved surface or the third curved surface, and the fourth curved surface is less than 20 mm,
When the binding band for further holding the fourth curved surface in contact with the outer surface of the fourth refrigerant pipe is wound around the outer periphery thereof, the binding band is accommodated in the groove portion;
The piping fixture according to claim 3. The second distance is less than 15 mm;
The piping fixture according to claim 3 or 4. A first refrigerant pipe (14, 16);
A second refrigerant pipe (15, 11) extending along a direction parallel to a direction in which the first refrigerant pipe extends;
A compressor (25) for compressing the refrigerant;
The pipe fixture (50, 70, 80) according to any one of claims 1 to 5,
A binding band (61) for fixing the first refrigerant pipe and the second refrigerant pipe which are not directly connected to the compressor together with the pipe fixture;
An outdoor unit (120) of a refrigeration apparatus comprising:

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