CN213901535U - Heat exchanger unit - Google Patents
Heat exchanger unit Download PDFInfo
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- CN213901535U CN213901535U CN202022920290.5U CN202022920290U CN213901535U CN 213901535 U CN213901535 U CN 213901535U CN 202022920290 U CN202022920290 U CN 202022920290U CN 213901535 U CN213901535 U CN 213901535U
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Abstract
Provided is a heat exchanger unit which can prevent a thermistor from falling off from a heat transfer pipe or a pipe made of aluminum. The heat exchanger unit has an air supply fan (32) for generating an air flow, and a heat exchanger (10) disposed in the air flow generated by the air supply fan (32). A heat exchanger (10) is provided with: an aluminum heat transfer tube (11) through which a refrigerant flows; a plurality of aluminum pipes (701, 702) connected to the heat transfer pipe (11) and arranged side by side in the direction of the air flow generated by the blower fan (32); fins (13) attached to the heat transfer tube (11); and a thermistor (12) that detects the temperature of the refrigerant. The thermistor (12) is attached to a pipe (701) arranged on the windward side of the airflow among the plurality of pipes (701, 702).
Description
Technical Field
The utility model relates to a heat exchanger unit.
Background
Patent document 1 discloses a heat exchanger having tubes through which a refrigerant flows and fins attached to the tubes. In this heat exchanger, a temperature sensing element for detecting the temperature of the refrigerant is attached to the tube via a fixing member.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2013-194968
In the heat exchanger, the fixing member is made of a structural material that does not cause electrical corrosion of the tube. Therefore, when the fixing member corrodes, the temperature sensing element sometimes falls off from the tube.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a heat exchanger unit capable of suppressing the thermistor from coming off from a heat transfer tube or a pipe made of aluminum.
The heat exchanger of the 1 st aspect of the present invention includes: an aluminum heat transfer tube through which a refrigerant flows; an aluminum pipe connected to the heat transfer pipe and extending downward from the heat transfer pipe in a vertical direction; and a thermistor that detects a temperature of the refrigerant, wherein the pipe includes a branching portion and a communication pipe that is connected to the branching portion and the heat transfer pipe and extends upward in a vertical direction from the branching portion toward the heat transfer pipe, and the thermistor is disposed in the communication pipe.
According to the heat exchanger of claim 1, the thermistor is disposed in the communication pipe extending upward in the vertical direction from the branching portion toward the heat transfer pipe. With this configuration, adhesion of moisture to the surface of the pipe can be suppressed, and thus, for example, corrosion of the fixing member that fixes the thermistor to the heat transfer pipe can be suppressed. As a result, a heat exchanger in which the thermistor can be prevented from coming off the aluminum pipe can be realized.
The utility model discloses an outdoor unit of air conditioner of mode 2 has: a blower fan that generates an air flow; and a heat exchanger disposed in an air flow generated by the blower fan, the heat exchanger including: an aluminum heat transfer tube through which a refrigerant flows; a plurality of aluminum pipes connected to the heat transfer pipes, respectively, and arranged side by side in an air flow direction generated by the blower fan; a fin attached to the heat transfer tube; and a thermistor that detects a temperature of the refrigerant, the thermistor being attached to a pipe arranged on an upwind side of the air flow among the plurality of pipes.
According to the outdoor unit of an air conditioner of claim 2, the thermistor is attached to a pipe arranged on the upstream side of the air flow among the plurality of pipes. According to this configuration, adhesion of moisture to the surface of the pipe can be suppressed, and therefore, for example, corrosion of a fixing member for fixing the thermistor to the pipe can be suppressed. As a result, a heat exchanger in which the thermistor can be prevented from coming off the aluminum pipe can be realized.
The heat exchanger of the 3 rd aspect of the present invention has: a heat exchanger main body having a heat transfer tube made of aluminum through which a refrigerant flows; and a thermistor that detects a temperature of the refrigerant, the thermistor being disposed at an upper end of the heat exchanger main body in a vertical direction.
According to the heat exchanger of claim 3, the thermistor is disposed at the upper end of the heat exchanger main body in the vertical direction. With this configuration, adhesion of moisture to the surface of the heat transfer tube can be suppressed, and thus, for example, corrosion of a fixing member that fixes the thermistor to the heat transfer tube can be suppressed. As a result, a heat exchanger in which the thermistor can be prevented from coming off the aluminum heat transfer tube can be realized.
The utility model discloses an indoor set of air conditioner of mode 4 has: a main body casing having a suction port at an upper end in a vertical direction; and a heat exchanger including a heat exchanger body having an aluminum heat transfer pipe through which a refrigerant flows, and a thermistor that detects a temperature of the refrigerant, wherein the thermistor is disposed in a portion of the heat exchanger body that faces the suction port.
The heat exchanger of the 5 th aspect of the present invention has: an aluminum heat transfer tube through which a refrigerant flows; an aluminum pipe connected to the heat transfer pipe and forming a heat exchange path together with the heat transfer pipe; and a thermistor that detects a temperature of the refrigerant, wherein the heat exchange path includes a 1 st path that protrudes upward in a vertical direction as a whole, and includes, as the heat transfer pipe, a 1 st heat transfer pipe and a 2 nd heat transfer pipe that is adjacent to the 1 st heat transfer pipe and is arranged at a gap from the 1 st heat transfer pipe, the pipe that constitutes the 1 st path includes a bent pipe that connects one end of the 1 st heat transfer pipe and one end of the 2 nd heat transfer pipe, and the thermistor is arranged at the bent pipe.
According to the heat exchanger of the 5 th aspect, the thermistor is disposed in the bent tube constituting a part of the 1 st path projecting upward in the vertical direction among the pipe connected to the heat transfer tube and constituting the heat exchange path together with the heat transfer tube. According to this configuration, since the adhesion of moisture to the surface of the bent tube can be suppressed, for example, corrosion of the fixing member that fixes the thermistor to the bent tube can be suppressed. As a result, a heat exchanger in which the thermistor can be prevented from falling off from the aluminum bent tube can be realized.
The heat exchanger of claim 6 of the present invention comprises: an aluminum heat transfer tube through which a refrigerant flows; an aluminum pipe connected to the heat transfer pipe and forming a heat exchange path together with the heat transfer pipe; and a thermistor that detects a temperature of the refrigerant, wherein the heat exchange path includes a 2 nd path that protrudes downward in a vertical direction as a whole, and includes, as the heat transfer pipe, a3 rd heat transfer pipe and a 4 th heat transfer pipe that is adjacent to the 3 rd heat transfer pipe and is disposed at a gap from the 3 rd heat transfer pipe, the pipe that constitutes the 2 nd path includes a bent pipe that connects the 3 rd heat transfer pipe and the 4 th heat transfer pipe, and the thermistor is disposed at the bent pipe.
According to the heat exchanger of claim 6, the thermistor is disposed in the bent tube constituting a part of the 2 nd path projecting downward in the vertical direction among the pipe connected to the heat transfer tube and constituting the heat exchange path together with the heat transfer tube. According to this configuration, since the adhesion of moisture to the surface of the bent tube can be suppressed, for example, corrosion of the fixing member that fixes the thermistor to the bent tube can be suppressed. As a result, a heat exchanger in which the thermistor can be prevented from falling off from the aluminum bent tube can be realized.
Drawings
Fig. 1 is a circuit diagram of a refrigerant circuit of an air conditioner including a heat exchanger according to embodiment 1 of the present invention.
Fig. 2 is a schematic plan view of an outdoor unit of the air conditioner of fig. 1.
Fig. 3 is a schematic view illustrating a relationship between heat transfer tubes and fins of the outdoor unit of fig. 2.
Fig. 4 is a circuit diagram of a refrigerant circuit of an air conditioner including the heat exchanger according to embodiment 2 of the present invention.
Fig. 5 is a perspective view of the indoor unit of the air conditioner of fig. 4.
Fig. 6 is a sectional view taken along line VI-VI of fig. 5.
Fig. 7 is a partial rear view of the heat exchanger according to embodiment 3 of the present invention.
Fig. 8 is a partial top view of the heat exchanger of fig. 7.
Fig. 9 is a schematic view of a heat exchange path of the heat exchanger according to embodiment 4 of the present invention.
Fig. 10 is a partially enlarged view of a heat exchange path of the heat exchanger of fig. 9.
Fig. 11 is a schematic view showing a heat exchange path of the heat exchanger according to embodiment 5 of the present invention.
Fig. 12 is a partially enlarged view of a heat exchange path of the heat exchanger of fig. 11.
Description of the reference symbols
1 air conditioner
2 outdoor machine
3 indoor machine
10 outdoor heat exchanger
11 heat transfer tube
111 gap
112 region
12 thermistor
13 Fin
21 compressor
22 four-way switching valve
23 electric expansion valve
24 indoor heat exchanger
25 gas-liquid separator
31 main body outer casing
32 outdoor fan
33 divider plate
34 mechanical chamber
35 air supply chamber
40 indoor fan
51 Heat exchanger body
52 st 1 Heat exchanger body
53 nd 2 nd heat exchanger body
54 No. 3 heat exchanger body
60 filter
70 piping
701 st pipe
701 nd 2 nd pipe
71 heat exchange unit
72 branch part
73 connecting piping
80 heat exchange path
81 st path
82 nd path
90. 91, 92, 93, 94 piping
95. 96 bent pipe
100 main body case
104 air outlet
106 suction inlet
121 horizontal baffle
126 blow-off passage
RC refrigerant circuit
Detailed Description
An example of the present invention will be described below with reference to the drawings. In the following description, terms indicating specific directions or positions (for example, terms including "up", "down", "right", "left", "front", and "rear") are used as necessary, but these terms are used for ease of understanding the present invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms. The following description is merely exemplary in nature and is not intended to limit the present invention, the applications of the present invention, or the uses of the present invention. Further, the drawings are schematic, and ratios of the respective dimensions and the like do not necessarily coincide with actual cases.
(embodiment 1)
As shown in fig. 1, an outdoor unit 2 according to embodiment 1 of the present invention constitutes a part of an air conditioner 1, by way of example.
The air conditioner 1 includes a refrigerant circuit RC in which a compressor 21, a four-way switching valve 22, an outdoor heat exchanger 10 (hereinafter, simply referred to as a heat exchanger 10), a motor-operated expansion valve 23, an indoor heat exchanger 24, and a gas-liquid separator 25 are connected in a ring shape. The refrigerant circuit RC is configured such that the refrigerant discharged from the compressor 21 is sucked into the compressor 21 through the four-way switching valve 22, the heat exchanger 10, the motor-operated expansion valve 23, the indoor heat exchanger 24, and the gas-liquid separator 25.
As shown in fig. 2, the outdoor unit 2 includes a main body casing 31. The heat exchanger 10, the compressor 21, and an outdoor fan 32 as an example of a blower fan are housed in the main body casing 31. The interior of the main body casing 31 is partitioned into a machine chamber 34 and a blowing chamber 35 by a partition plate 33. The compressor 21 is disposed in the machine room 34, and the heat exchanger 10 and the outdoor fan 32 are disposed in the blowing room 35. By driving the outdoor fan 32, the air outside the outdoor unit 2 is sucked into the air blowing chamber 35 from the directions of arrows a and B, exchanges heat with the heat exchanger 10, and is blown out from the inside of the air blowing chamber 35 to the outside of the outdoor unit 2 in the direction of arrow C. That is, the outdoor fan 32 is disposed downstream of the heat exchanger 10 with respect to the air flow generated by the outdoor fan 32 (hereinafter, simply referred to as air flow). The outdoor fan 32 may be disposed upstream of the heat exchanger 10 in the air flow. In short, the heat exchanger 10 may be disposed in the air flow.
As shown in fig. 2, the heat exchanger 10 includes an aluminum heat transfer tube 11 through which a refrigerant flows, a plurality of aluminum pipes 70 connected to the heat transfer tube 11, fins 13 attached to the heat transfer tube 11, and a thermistor 12 that detects the temperature of the refrigerant. As an example, the heat exchanger 10 includes a plurality of heat transfer tubes 11 and a plurality of fins 13.
Each heat transfer pipe 11 is made of aluminum such as a3003, and has a substantially circular cross section, for example. Each heat transfer pipe 11 has a substantially L-shape, and is disposed with a long section facing the outdoor fan 32. As shown in fig. 3, the heat transfer tubes 11 are arranged with gaps 111 therebetween in the vertical direction. A plurality of fins 13 are attached to a region 112 of each heat transfer pipe 11 excluding one end in the longitudinal direction thereof, and an air flow blown from the outdoor fan 32 is formed in this region 112. That is, the longitudinal portions of the heat transfer tubes 11 are disposed on the windward side of the wind flowing from the direction of arrow a to the direction of arrow C, and the short side portions of the heat transfer tubes 11 are disposed on the windward side of the wind flowing from the direction of arrow B to the direction of arrow C.
Each pipe 70 is made of the same material (aluminum such as a 3003) as the heat transfer pipe 11, and constitutes a heat exchange path 80 together with the heat transfer pipe 11. In embodiment 1, each pipe 70 is connected to one end of the heat transfer pipe 11 in the longitudinal portion thereof and is disposed in the machine room 34. The pipes 70 are constituted by a 1 st pipe 701 and a 2 nd pipe 702 which are arranged side by side in the air flow direction (i.e., the arrow a direction) flowing through the longitudinal portion of each heat transfer pipe 11. In a plan view shown in fig. 2, the 1 st pipe 701 and the 2 nd pipe 702 extend along the longitudinal direction of each heat transfer pipe 11, and are arranged with a gap in the arrow a direction. In this embodiment, the 1 st pipe 701 is disposed upstream of the 2 nd pipe 702 in the air flow.
As shown in fig. 3, each fin 13 is thin plate-shaped, extends in a direction intersecting the direction in which the heat transfer tubes 11 extend, and is disposed with a gap 111 therebetween along the direction in which the heat transfer tubes 11 extend.
The thermistor 12 is made of aluminum such as a3003, for example, and is attached to the 1 st pipe 701 arranged on the windward side of the air flow among the plurality of pipes 70. In the heat exchanger 10 according to embodiment 1, the thermistor 12 is attached to an upper end of the 1 st pipe 701 in the vertical direction (for example, the direction in which the sheet of fig. 2 penetrates) via a fixing member (not shown) made of aluminum such as a3003, for example.
When the heat exchanger 10 is used as an evaporator, the liquid refrigerant inside the heat transfer tubes 11 in the windward air evaporates after the operation of the heat exchanger 10 as an evaporator is stopped, and the temperature tends to increase. Among the plurality of pipes 70 connected to the heat transfer pipe 11 in the windward direction, the surface of the 1 st pipe 701 disposed on the windward side of the air flow is more easily dried than the surface of the 2 nd pipe 702 disposed on the leeward side. That is, since the thermistor 12 is attached to the 1 st pipe 701, it is possible to suppress adhesion of moisture to the surface of the pipe 70, and thus, for example, it is possible to suppress corrosion of a fixing member that fixes the thermistor 12 to the pipe 70. As a result, the heat exchanger 10 can be realized in which the thermistor 12 can be prevented from coming off the aluminum pipe 70. Further, for example, a pipe made of aluminum or an aluminum alloy tends to have lower corrosion resistance than a pipe made of copper or a copper alloy. Therefore, in general, a heat exchanger having a heat transfer pipe and a pipe made of aluminum may have a shorter life than a heat exchanger having a heat transfer pipe and a pipe made of copper. However, since the configuration as described above of the outdoor unit 2 can suppress the thermistor 12 from coming off and also suppress corrosion of the aluminum pipes 70, the outdoor unit 2 having a long life can be realized even if the heat exchanger 10 including the aluminum heat transfer pipe 11 and the aluminum pipes 70 is provided.
The heat exchanger 10 according to embodiment 1 is not limited to the outdoor unit 2, and can be applied to a heat exchanger unit constituting at least a part of other refrigeration apparatuses such as an indoor unit 3, a hot water supply device, and a heat pump chiller (heat pump chiller).
The thermistor 12 can be disposed at any position of the 1 st pipe 701, and the 1 st pipe 701 is disposed on the windward side of the air flow. Since the machine chamber 34 is not easily supplied with air from the outdoor fan 32 and is not easily corroded, for example, by mounting the thermistor 12 in the pipe 70 disposed in the machine chamber 34, corrosion of a fixing member that fixes the thermistor 12 to the pipe 70 can be more reliably suppressed. Further, the thermistor 12 is preferably disposed at the upper end of the pipe 70 in the vertical direction. Since the refrigerant is less likely to remain at the upper end of the pipe 70 in the vertical direction, the adhesion of moisture to the surface of the pipe 70 can be more reliably suppressed.
(embodiment 2)
The heat exchanger 10 according to embodiment 2 of the present invention differs from the heat exchanger 10 according to embodiment 1 in that, as shown in fig. 4, a part of an indoor unit 3 of an air conditioner 1 is configured, for example, and the thermistor 12 is disposed at the upper end of the heat exchanger main body 51 in the vertical direction. In embodiment 2, the same portions as those in embodiment 1 are denoted by the same reference numerals as those in embodiment 1, and the description thereof is omitted, and the differences from embodiment 1 are described.
The air conditioner 1 includes a refrigerant circuit RC in which a compressor 21, a four-way switching valve 22, an outdoor heat exchanger 24, an electric expansion valve 23, an indoor heat exchanger 10 (hereinafter, simply referred to as a heat exchanger 10), and a gas-liquid separator 25 are connected in a ring shape. The refrigerant circuit RC is configured such that the refrigerant discharged from the compressor 21 is sucked into the compressor 21 through the four-way switching valve 22, the outdoor heat exchanger 24, the motor-operated expansion valve 23, the heat exchanger 10, and the gas-liquid separator 25.
As an example, as shown in fig. 5, the indoor unit 3 is a wall-mounted indoor unit and includes a main body casing 100. As shown in fig. 6, the indoor unit 3 further includes an indoor fan 40, a heat exchanger 10, and a filter 60 disposed inside the main casing 100. The indoor fan 40 is disposed substantially at the center in a cross section intersecting the left-right direction of the indoor unit 3. The heat exchanger 10 is disposed on the front side and the upper side of the indoor fan 40, and the filter 60 is disposed between the main body case 100 and the heat exchanger 10.
As shown in fig. 6, main body casing 100 has outlet 104 provided on the lower surface and inlet 106 provided on the upper surface. Horizontal baffle 121 is provided at outlet 104. Horizontal flap 121 rotates to open and close outlet 104.
As shown in fig. 6, indoor fan 40 is driven by a fan motor, not shown. When the indoor fan 40 is driven, air outside the main body casing 100 is sucked into the main body casing 100 through the lower suction port 105 and the upper suction port 106. The air drawn into the interior of the main body casing 100 passes through the heat exchanger 10, and is cooled, for example. The cooled air is blown out from blow-out port 104 to the outside of main body casing 100 through blow-out passage 126.
For example, the heat exchanger 10 includes a heat exchanger main body 51 and a thermistor 12. For example, the heat exchanger main body 51 is composed of 3 members (hereinafter, referred to as a 1 st heat exchanger main body 53, a 2 nd heat exchanger main body 54, and a3 rd heat exchanger main body 55). The heat exchanger bodies 53, 54, and 55 are connected to each other, and include a plurality of heat transfer tubes 11 made of aluminum through which a refrigerant flows. Each heat transfer pipe 11 is made of aluminum such as a 3003. The 1 st heat exchanger main body 53 is disposed on the front side of the indoor fan 40. The 2 nd heat exchanger main body 54 is disposed on the front side and the upper side of the indoor fan 40. The 3 rd heat exchanger main body 55 is disposed on the rear side and the upper side of the indoor fan 40.
The thermistor 12 is made of aluminum such as a3003, for example, and is disposed at the upper end of the heat exchanger main body 51 in the vertical direction. Specifically, the thermistor 12 is disposed at a portion facing the upper suction port 106 at the upper end of the heat exchanger main body 51 in the vertical direction. In the heat exchanger 10 according to embodiment 2, the thermistor 12 is attached to the heat transfer tube 11 at the upper end of the 2 nd heat exchanger main body 54 via a fixing member (not shown) made of aluminum such as a3003, for example. The portion of the upper end of the heat exchanger main body 51 in the vertical direction facing the upper suction port 106 is: the portions of the heat exchanger bodies 53, 54, and 55 facing the suction port 106 when the suction port 106 is viewed from above in the vertical direction.
When the heat exchanger 10 is used as an evaporator, the heat transfer tubes 11 in the upper portion of the heat exchanger main body 51 are not likely to have liquid refrigerant remaining therein after the operation of the heat exchanger 10 as an evaporator is stopped, and the surfaces thereof are likely to be dried. Therefore, adhesion of moisture to the surface of the heat exchanger tube 11 can be suppressed, and thus, for example, corrosion of the fixing member that fixes the thermistor 12 to the heat exchanger tube 11 can be suppressed. As a result, the heat exchanger 10 can be realized in which the thermistor 12 can be prevented from coming off the aluminum heat transfer tube 11.
The heat exchanger 10 according to embodiment 2 is not limited to the indoor unit 3, and can be applied to other refrigeration apparatuses such as the outdoor unit 2, a hot water supply device, and a heat pump chiller, for example.
(embodiment 3)
The heat exchanger 10 according to embodiment 3 of the present invention is different from the heat exchanger 10 according to embodiment 1 in that the thermistor 12 is disposed in a communication pipe 73 extending upward in the vertical direction from the branch portion 72, as shown in fig. 7 and 8. In embodiment 3, the same portions as those in embodiment 1 are denoted by the same reference numerals as those in embodiment 1, and the description thereof is omitted, and the differences from embodiment 1 are described.
As shown in fig. 7 and 8, the pipe 70 includes a branch portion 72 and a communication pipe 73. The branching portion 72 branches or merges the refrigerant flowing through the pipe 70. The connection pipe 73 is connected to the branch portion 72 and the heat transfer pipe 11, and extends upward in the vertical direction from the branch portion 72 toward the heat transfer pipe 11. In the heat exchanger 10 according to embodiment 3, the thermistor 12 is attached to the communication pipe 73 via a fixing member (not shown) made of aluminum such as a3003, for example.
As shown in fig. 8, the heat exchanger 10 according to embodiment 3 includes a heat exchange portion 71 including a plurality of heat transfer tubes 11 and a plurality of fins 13. Each fin 13 is plate-shaped and is disposed with a gap in the plate thickness direction.
When the heat exchanger 10 is used as an evaporator, the communication pipe 73 extending upward in the vertical direction from the branch portion 72 toward the heat transfer pipe 11 is not likely to have liquid refrigerant remaining therein after the operation of the heat exchanger 10 as an evaporator is stopped, and the surface thereof is likely to be dried. Therefore, the adhesion of moisture to the surface of the communication pipe 73 can be suppressed, and thus, for example, corrosion of the fixing member that fixes the thermistor 12 to the communication pipe 73 can be suppressed. As a result, the heat exchanger 10 in which the thermistor 12 can be prevented from coming off the aluminum communication pipe 73 can be realized.
The heat exchanger 10 according to embodiment 3 is not limited to the outdoor unit 2, and can be applied to other refrigeration apparatuses such as an indoor unit 3, a hot water supply device, and a heat pump chiller, for example.
(embodiment 4)
The heat exchanger 10 according to embodiment 4 of the present invention differs from the heat exchanger 10 according to embodiment 1 in that the thermistor 12 is disposed in a bent tube 95 as shown in fig. 9. In embodiment 4, the same portions as those in embodiment 1 are denoted by the same reference numerals as those in embodiment 1, and the description thereof is omitted, and the differences from the heat exchanger 10 of embodiment 1 are described.
As shown in fig. 9 and 10, the pipe 90 is made of, for example, the same member as the heat transfer pipe 11 (for example, aluminum such as a 3003), and constitutes the heat exchange path 80 together with the heat transfer pipe 11. The bent pipe 95 (for example, U-shaped bent pipe) constitutes a part of the pipe 90 and a part of the 1 st path 81 which protrudes upward in the vertical direction as a whole. The heat exchanger 10 shown in fig. 9 and 10 includes a 1 st heat transfer pipe 131 and a 2 nd heat transfer pipe 132 as the heat transfer pipes 11. The 2 nd heat transfer pipe 132 is disposed adjacent to the 1 st heat transfer pipe 131 with a gap from the 1 st heat transfer pipe 131. The bent pipe 95 connects one end of the 1 st heat transfer pipe 131 and one end of the 2 nd heat transfer pipe 132.
The thermistor 12 can be attached to any position of any bent tube 95. In order to more reliably reduce the influence of the refrigerant remaining in the pipe 90, the thermistor 12 is preferably attached to the bent pipe 95 located at the upper side in the vertical direction as much as possible. In addition, the thermistor 12 is attached to the bent tube 95 via a fixing member (not shown) made of aluminum such as a3003, for example.
As shown in fig. 10, the heat exchanger 10 of embodiment 4 includes a heat exchange portion 71 including a plurality of heat transfer tubes 11 and a plurality of fins 13. Each fin 13 is plate-shaped and is disposed with a gap in the plate thickness direction.
When the heat exchanger 10 is used as an evaporator, the bend 95 constituting a part of the 1 st path 81 projecting upward in the vertical direction is less likely to have liquid refrigerant remaining therein after the operation of the heat exchanger 10 as an evaporator is stopped, and the surface thereof is likely to be dried. Therefore, the adhesion of moisture to the surface of the bent tube 95 can be suppressed, and thus, for example, corrosion of the fixing member that fixes the thermistor 12 to the bent tube 95 can be suppressed. As a result, the heat exchanger 10 can be realized in which the thermistor 12 can be prevented from coming off the aluminum bent tube 95. Further, the heat exchanger 10 can realize the indoor unit 3 of the air conditioner that can more reliably detect the temperature of the refrigerant flowing through the heat exchanger 10.
The heat exchanger 10 according to embodiment 4 is not limited to the outdoor unit 2, and can be applied to other refrigeration apparatuses such as an indoor unit 3, a hot water supply device, and a heat pump chiller.
(embodiment 5)
The heat exchanger 10 according to embodiment 5 of the present invention differs from the heat exchanger 10 according to embodiment 1 in that the thermistor 12 is disposed in a bent tube 96 as shown in fig. 11. In embodiment 5, the same portions as those in embodiment 1 are denoted by the same reference numerals as those in embodiment 1, and the description thereof is omitted, and the differences from heat exchanger 10 of embodiment 1 are described.
As shown in fig. 11 and 12, the pipe 90 is made of, for example, the same member as the heat transfer pipe 11 (for example, aluminum such as a 3003), and constitutes the heat exchange path 80 together with the heat transfer pipe 11. The bent pipe 96 (for example, U-shaped bent pipe) constitutes a part of the pipe 90 and a part of the 2 nd path 82 which protrudes downward in the vertical direction as a whole. The heat exchanger 10 shown in fig. 11 and 12 includes a3 rd heat transfer pipe 133 and a 4 th heat transfer pipe 134 as the heat transfer pipe 11. The 4 th heat transfer pipe 134 is disposed adjacent to the 3 rd heat transfer pipe 133 with a gap from the 3 rd heat transfer pipe 133. The bent pipe 96 connects one end of the 3 rd heat transfer pipe 133 and one end of the 4 th heat transfer pipe 134.
The thermistor 12 is disposed above a center line CL in the vertical direction of the 2 nd path 82 in the vertical direction. In order to more reliably reduce the influence of the refrigerant remaining in the pipe 90, the thermistor 12 is preferably attached to the bend 96 disposed at a position separated from the center line CL to the upper side in the vertical direction as much as possible. In addition, the thermistor 12 is attached to the bent tube 96 via a fixing member (not shown) made of aluminum such as a3003, for example.
As shown in fig. 12, the heat exchanger 10 of embodiment 5 includes a heat exchange portion 71 including a plurality of heat transfer tubes 11 and a plurality of fins 13. Each fin 13 is plate-shaped and is disposed with a gap in the plate thickness direction.
When the heat exchanger 10 is used as an evaporator, the elbow 96 located above the center line CL in the vertical direction in the 2 nd path 82 projecting downward in the vertical direction is less likely to have liquid refrigerant remaining therein after the operation of the heat exchanger 10 as an evaporator is stopped, and the surface thereof is likely to be dried. Therefore, the adhesion of moisture to the surface of the bent tube 96 can be suppressed, and thus, for example, corrosion of the fixing member that fixes the thermistor 12 to the bent tube 96 can be suppressed. As a result, the heat exchanger 10 in which the thermistor 12 can be prevented from coming off the aluminum bent tube 96 can be realized.
The heat exchanger 10 according to embodiment 5 is not limited to the outdoor unit 2, and can be applied to other refrigeration apparatuses such as an indoor unit 3, a hot water supply device, and a heat pump chiller, for example.
In addition, any of the various embodiments and modifications described above can exhibit respective effects by being appropriately combined. Further, combinations of the embodiments or examples or combinations of the embodiments and examples can be made, and combinations of features in different embodiments or examples can also be made.
Claims (15)
1. A heat exchanger unit, characterized by having:
a blower fan (32) that generates an air flow; and
a heat exchanger (10) disposed in the air flow generated by the blower fan (32),
the heat exchanger (10) comprises:
an aluminum heat transfer tube (11) through which a refrigerant flows;
a plurality of aluminum pipes (701, 702) connected to the heat transfer pipe (11) and arranged side by side in the direction of the air flow generated by the blower fan (32);
fins (13) attached to the heat transfer tube (11); and
a thermistor (12) for detecting the temperature of the refrigerant,
the thermistor (12) is attached to a pipe (701) arranged on the windward side of the airflow among the plurality of pipes (701, 702).
2. The heat exchanger unit of claim 1,
the pipe (701) to which the thermistor (12) is attached is made of the same material as the heat transfer pipe (11).
3. Heat exchanger unit according to claim 1 or 2,
the thermistor (12) is made of an A3003 aluminum alloy.
4. Heat exchanger unit according to claim 1 or 2,
the thermistor (12) is attached to the upper end of the pipe (701) disposed on the upstream side of the air flow in the vertical direction.
5. Heat exchanger unit according to claim 3,
the thermistor (12) is attached to the upper end of the pipe (701) disposed on the upstream side of the air flow in the vertical direction.
6. Heat exchanger unit according to claim 1 or 2,
the heat exchanger unit has:
a compressor (21) that forms a Refrigerant Circuit (RC) together with the heat exchanger (10); and
a machine chamber (34) in which the compressor (21) is disposed,
the thermistor (12) is disposed in the machine chamber (34).
7. Heat exchanger unit according to claim 3,
the heat exchanger unit has:
a compressor (21) that forms a Refrigerant Circuit (RC) together with the heat exchanger (10); and
a machine chamber (34) in which the compressor (21) is disposed,
the thermistor (12) is disposed in the machine chamber (34).
8. The heat exchanger unit of claim 4,
the heat exchanger unit has:
a compressor (21) that forms a Refrigerant Circuit (RC) together with the heat exchanger (10); and
a machine chamber (34) in which the compressor (21) is disposed,
the thermistor (12) is disposed in the machine chamber (34).
9. The heat exchanger unit of claim 5,
the heat exchanger unit has:
a compressor (21) that forms a Refrigerant Circuit (RC) together with the heat exchanger (10); and
a machine chamber (34) in which the compressor (21) is disposed,
the thermistor (12) is disposed in the machine chamber (34).
10. Heat exchanger unit according to claim 1 or 2,
the heat exchanger unit constitutes at least a part of any one of an outdoor unit (2) of an air conditioner, an indoor unit (3) of the air conditioner, a hot water supply device, and a heat pump chiller.
11. Heat exchanger unit according to claim 3,
the heat exchanger unit constitutes at least a part of any one of an outdoor unit (2) of an air conditioner, an indoor unit (3) of the air conditioner, a hot water supply device, and a heat pump chiller.
12. The heat exchanger unit of claim 4,
the heat exchanger unit constitutes at least a part of any one of an outdoor unit (2) of an air conditioner, an indoor unit (3) of the air conditioner, a hot water supply device, and a heat pump chiller.
13. The heat exchanger unit of claim 5,
the heat exchanger unit constitutes at least a part of any one of an outdoor unit (2) of an air conditioner, an indoor unit (3) of the air conditioner, a hot water supply device, and a heat pump chiller.
14. The heat exchanger unit of claim 6,
the heat exchanger unit constitutes at least a part of any one of an outdoor unit (2) of an air conditioner, an indoor unit (3) of the air conditioner, a hot water supply device, and a heat pump chiller.
15. Heat exchanger unit according to any of claims 7 to 9,
the heat exchanger unit constitutes at least a part of any one of an outdoor unit (2) of an air conditioner, an indoor unit (3) of the air conditioner, a hot water supply device, and a heat pump chiller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020005965A JP2021113634A (en) | 2020-01-17 | 2020-01-17 | Heat exchanger |
| JP2020-005965 | 2020-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213901535U true CN213901535U (en) | 2021-08-06 |
Family
ID=77076818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022920290.5U Active CN213901535U (en) | 2020-01-17 | 2020-12-08 | Heat exchanger unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2021113634A (en) |
| CN (1) | CN213901535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117642582A (en) * | 2021-09-30 | 2024-03-01 | 大金工业株式会社 | Heat exchange unit and air conditioner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6027285U (en) * | 1983-07-29 | 1985-02-23 | 三洋電機株式会社 | Temperature sensing cylinder mounting device |
| JPS61159064A (en) * | 1984-12-28 | 1986-07-18 | 松下電器産業株式会社 | Evaporator |
| JP3410859B2 (en) * | 1995-06-28 | 2003-05-26 | 東芝キヤリア株式会社 | Air conditioner |
| JP2004085031A (en) * | 2002-08-26 | 2004-03-18 | Hitachi Ltd | Air cooling type heat exchanger and air conditioner |
| JP6791196B2 (en) * | 2018-04-13 | 2020-11-25 | ダイキン工業株式会社 | Outdoor unit |
-
2020
- 2020-01-17 JP JP2020005965A patent/JP2021113634A/en active Pending
- 2020-12-08 CN CN202022920290.5U patent/CN213901535U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117642582A (en) * | 2021-09-30 | 2024-03-01 | 大金工业株式会社 | Heat exchange unit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021113634A (en) | 2021-08-05 |
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