WO2016185658A1 - Heat exchanger unit - Google Patents

Heat exchanger unit Download PDF

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Publication number
WO2016185658A1
WO2016185658A1 PCT/JP2016/001956 JP2016001956W WO2016185658A1 WO 2016185658 A1 WO2016185658 A1 WO 2016185658A1 JP 2016001956 W JP2016001956 W JP 2016001956W WO 2016185658 A1 WO2016185658 A1 WO 2016185658A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
bracket
blocking member
temperature detection
detection device
Prior art date
Application number
PCT/JP2016/001956
Other languages
French (fr)
Japanese (ja)
Inventor
▲祥▼▲隆▼ 久米
良征 葛西
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015161619A external-priority patent/JP2016217690A/en
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2016185658A1 publication Critical patent/WO2016185658A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations

Definitions

  • the present disclosure relates to a heat exchanger unit including a device for detecting the temperature of an external fluid.
  • Patent Document 1 describes an outdoor unit of an air conditioner including a heat exchanger and an outside air temperature sensor.
  • the heat exchanger exchanges heat between the refrigerant (internal fluid) and the outside air (external fluid).
  • the outside air temperature sensor detects the outside air temperature.
  • the outside air temperature sensor is fixed to the pipe of the heat exchanger using an outside air temperature sensor holder.
  • the heat exchanger, the outside air temperature sensor, and the outside air temperature sensor holder are accommodated in the casing.
  • the outside air temperature sensor since the outside air temperature sensor may be detached during maintenance, it is desirable that the workability of the outside air temperature sensor is improved.
  • the attachment / detachment workability of the outside air temperature sensor is It may be affected by the position of the opening.
  • the heat exchanger may get in the way if the outside air temperature sensor is removed from the maintenance opening. As a result, the outside air temperature sensor cannot be easily detached, and there is a risk of hindering maintenance.
  • This indication aims at providing the heat exchanger unit which can remove
  • the heat exchanger unit includes a heat exchanger, a casing, a current shielding member, a temperature detection device, and a bracket.
  • the heat exchanger exchanges heat between the internal fluid and the external fluid.
  • the housing accommodates the heat exchanger.
  • the flow blocking member is disposed between the heat exchanger and the housing, and blocks the flow of an external fluid that bypasses the heat exchanger.
  • the temperature detection device detects the temperature of the external fluid.
  • the bracket is interposed between the temperature detection device and the current blocking member. A hole penetrating in the flow direction of the external fluid in the heat exchanger is formed in the current blocking member. The bracket passes through the hole.
  • An extension portion of the bracket to which the temperature detection device is fixed and a fixing portion of the bracket that is fixed to the current blocking member are located on opposite sides of the current blocking member.
  • the temperature detection device can be detached from the opposite side across the heat exchanger.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. It is a perspective view of the bracket and hole in a 1st embodiment.
  • FIG. 6 is a view taken along arrow VI in FIG. 4. It is a front view of the bracket and external temperature thermistor in 2nd Embodiment. It is a VIII arrow line view of FIG. It is a front view of the bracket and external temperature thermistor in other embodiments.
  • the heat pump type hot water heater 1 shown in FIG. 1 includes a heat pump cycle 10 and a water circulation circuit 20.
  • the heat pump cycle 10 heats hot water that is a fluid to be heated.
  • the water circulation circuit 20 circulates hot water in the hot water storage tank 21.
  • the heat pump cycle 10 is a vapor compression refrigeration cycle in which a compressor 11, a water-refrigerant heat exchanger 12, an electric expansion valve 13, an evaporator 14 and the like are sequentially connected by refrigerant piping.
  • Compressor 11 sucks the refrigerant of heat pump cycle 10 and compresses and discharges it.
  • the compressor 11 is an electric compressor that drives a fixed displacement compression mechanism with an electric motor.
  • the rotation speed (refrigerant discharge capacity) of the compressor 11 is controlled by a control signal output from the cycle control device 31.
  • the compressor 11 may be an engine-driven compressor that is driven by an engine.
  • the water-refrigerant heat exchanger 12 is a heating heat exchanger that heats the hot water by dissipating the heat of the high-temperature and high-pressure refrigerant discharged from the compressor 11 to the hot water.
  • the water-refrigerant heat exchanger 12 has a refrigerant passage 12a through which the high-temperature and high-pressure refrigerant discharged from the compressor 11 passes, and a water passage 12b through which hot water flowing through the water circulation circuit 20 passes.
  • the electric expansion valve 13 is a variable throttle mechanism that decompresses and expands the high-pressure refrigerant that has flowed out of the refrigerant passage 12a of the water-refrigerant heat exchanger 12.
  • the electric expansion valve 13 includes a valve body configured to be able to change the throttle opening, and an electric actuator that changes the throttle opening of the valve body.
  • the throttle opening degree of the electric expansion valve 13 is controlled by a control signal output from the cycle control device 31.
  • the evaporator 14 performs heat exchange between the low-pressure refrigerant decompressed by the electric expansion valve 13 and the outside air (outdoor air) blown by the blower fan 15, thereby evaporating the low-pressure refrigerant and exerting an endothermic effect. It is a heat exchanger for use.
  • the blower fan 15 is an electric blower that drives an axial fan with an electric motor, and the blower capacity, that is, the rotational speed (the amount of blown air) is controlled by the control voltage output from the cycle control device 31.
  • the compressor 11, the water-refrigerant heat exchanger 12, and the electric expansion valve 13 are accommodated in a single metal casing 16 and constitute a heat pump unit 17 as shown by a one-dot chain line in FIG. .
  • the evaporator 14 and the blower fan 15 are housed in a single metal casing 18 to form a heat exchanger unit 19 as shown by a two-dot chain line in FIG.
  • the heat exchanger unit 19 is installed indoors.
  • the hot water storage tank 21 of the water circulation circuit 20 is a hot water tank that stores hot hot water.
  • the hot water storage tank 21 is formed of a metal (for example, stainless steel) having excellent corrosion resistance.
  • the hot water storage tank 21 has a heat insulating structure and can keep hot hot water for a long time.
  • Hot water stored in the hot water storage tank 21 is discharged from a hot water outlet provided in the upper part of the hot water storage tank 21.
  • a water supply port for supplying tap water is provided in the lower part of the hot water storage tank 21.
  • An electric water pump 22 is disposed in the water circulation circuit 20.
  • the electric water pump 22 is a water pressure feeding device that circulates hot water.
  • the discharge flow rate (water pressure feeding capacity) of the electric water pump 22 is controlled by a control signal output from the hot water tank side control device.
  • a water passage 12 b of the water-refrigerant heat exchanger 12 is connected to the discharge port of the electric water pump 22.
  • hot water in the hot water storage tank 21 circulates in the order of the electric water pump 22, the water passage 12 b of the water-refrigerant heat exchanger 12, and the hot water storage tank 21.
  • the hot water storage tank 21 and the electric water pump 22 of the water circulation circuit 20 are housed in one metal casing 23 and are integrally configured as a tank unit 24 as shown by a broken line in FIG.
  • the tank unit 24 and the heat pump unit 17 are connected by two water pipes.
  • the first water pipe connects the discharge side of the electric water pump 22 and the water passage 12 b inlet side of the water-refrigerant heat exchanger 12.
  • the second water pipe connects the water passage 12 b outlet side of the water-refrigerant heat exchanger 12 and the hot water supply inlet of the hot water storage tank 21.
  • the cycle control device 31 includes a known microcomputer including a CPU, a ROM, a RAM, and the like and peripheral circuits thereof.
  • the output side of the cycle control device 31 is connected to an electric motor of the compressor 11, an electric actuator of the electric expansion valve 13, an electric motor of the blower fan 15, and the like.
  • the cycle control device 31 controls the operation of these connected devices.
  • the structure (for example, hardware and software) which performs rotation speed control of the compressor 11 (electric motor) among the cycle control devices 31 is the compressor control unit 31a.
  • the configuration for controlling the throttle opening degree of the electric expansion valve 13 (electric actuator) is an expansion valve control unit 31b.
  • operation of the ventilation fan 15, ie, the ventilation capability of the ventilation fan 15, among the cycle control apparatuses 31 is the ventilation capability control part 31c.
  • the compressor control unit 31a, the expansion valve control unit 31b, and the blower capacity control unit 31c may be configured by a control device different from the cycle control device 31.
  • the outside temperature thermistor 32 and various sensors are connected to the input side of the cycle control device 31, and these detection signals are input to the cycle control device 31.
  • the outside temperature thermistor 32 is a temperature detection device that detects the temperature Tam of the outside air sucked into the evaporator 14. A detection signal from the outside temperature thermistor 32 is input to the cycle control device 31 via the harness 33.
  • the harness 33 is an electric wire that transmits an electric signal.
  • the up and down arrows indicate the up and down direction (gravity direction) in the installed state of the heat exchanger unit 19.
  • An outside air passage through which outside air flows is formed inside the housing 18 of the heat exchanger unit 19 as shown by the broken line arrows in FIG.
  • An evaporator 14 is disposed in the outside air passage in the housing 18.
  • An outer air suction port 18 a is formed in the most upstream part of the outer air flow of the housing 18.
  • An outside air outlet 18 b is formed at the most downstream part of the outside air flow of the housing 18.
  • the outside air suction port 18 a sucks outside air into the outside air passage in the housing 18, and the outside air outlet 18 b blows out outside air from the outside air passage in the housing 18.
  • the outside air inlet 18a and the outside air outlet 18b are disposed so as not to face the outside air suction surface and the outside air blowing surface of the evaporator 14.
  • the outside air inlet 18 a and the outside air outlet 18 b are disposed so as not to face the core surface of the evaporator 14.
  • An outside air introduction duct for introducing outside air from the outside is connected to the outside air inlet 18 a from the outside of the housing 18.
  • An outside air discharge duct for discharging outside air to the outside is connected to the outside air outlet 18 b from the outside of the housing 18.
  • a maintenance opening is formed in a portion of the housing 18 that faces the outside air blowing surface of the evaporator 14, and the maintenance opening is closed by an opening cover 18c.
  • the opening cover 18 c can be easily attached to and detached from the housing 18.
  • a maintenance opening is not formed in a portion of the housing 18 that faces the outside air suction surface of the evaporator 14.
  • the evaporator 14 has a plurality of heat transfer tubes bent in a hairpin shape and a plurality of flat fins.
  • the evaporator 14 is a cross fin tube heat exchanger in which a plurality of heat transfer tubes are inserted in a direction perpendicular to the plurality of fins.
  • the evaporator 14 is arrange
  • heat exchange is performed between the internal fluid flowing inside the heat transfer tube and the external fluid flowing outside the heat transfer tube.
  • the internal fluid is low-pressure refrigerant decompressed by the electric expansion valve 13, and the external fluid is outside air blown by the blower fan 15.
  • a diverting portion for diverting the internal fluid to the plurality of heat transfer tubes and a confluence portion for merging the internal fluid from the plurality of heat transfer tubes.
  • a current blocking member 40 that blocks the flow of outside air that bypasses the evaporator 14 is disposed between the evaporator 14 and the housing 18 in the housing 18.
  • the current blocking member 40 is formed in a plate shape that closes the gap between the evaporator 14 and the housing 18, and is disposed on both the left and right sides of the evaporator 14.
  • the current blocking member 40 is formed with a hole 40a penetrating the front and back. The hole 40a penetrates the current blocking member 40 in the direction in which the outside air passes through the evaporator 14.
  • a bracket 41 is fastened and fixed to the current blocking member 40 by a screw 42.
  • the bracket 41 is a member interposed between the outside temperature thermistor 32 and the current blocking member 40.
  • the outside temperature thermistor 32 is fixed to the bracket 41 by a binding band 43.
  • the outside air temperature thermistor 32 may be fixed to the bracket 41 by a clamp or the like.
  • the bracket 41 has a fixing part 41a and a tongue-like part 41b.
  • the bracket 41 is fastened and fixed to the current blocking member 40 by a fixing portion 41a.
  • the fixed portion 41 a is disposed on the downstream side in the outside air flow direction with respect to the current blocking member 40. Therefore, the bracket 41 is fixed to the current blocking member 40 from the downstream side in the outside air flow direction.
  • the tongue-like portion 41b protrudes from the fixed portion 41a and penetrates the hole 40a of the current blocking member 40 toward the upstream side in the outside air flow direction.
  • An outside temperature thermistor 32 is fixed to the tongue 41b. Therefore, the outside air temperature thermistor 32 is arranged on the upstream side in the outside air flow direction with respect to the evaporator 14.
  • the tongue portion 41b may be an extending portion that protrudes while being bent from the fixed portion 41a.
  • the tongue portion 41b may protrude in a tongue shape from the fixed portion 41a.
  • the fixing part 41a is larger than the hole 40a, and closes the hole 40a from the downstream side in the outside air flow direction.
  • a gap is formed between the outside temperature thermistor 32 and the surface of the evaporator 14 due to the bent shape of the tongue portion 41 b.
  • a portion of the tongue-like portion 41b in the vicinity of the root portion abuts against a portion of the current blocking member 40 that forms the edge of the hole 40a and closes the hole 40a.
  • the tip of the tongue 41b is directed obliquely downward.
  • the lower end of the tongue-shaped part 41b is located below the direction of gravity rather than the hole 40a.
  • the lower end of the tongue-like portion 41b is arranged at a position at least below horizontal than the hole 40a.
  • the harness 33 connected to the outside temperature thermistor 32 passes through the hole 40a along the tongue-like portion 41b of the bracket 41, and is sandwiched between the current blocking member 40 and the fixing portion 41a of the bracket 41.
  • the fixing portion 41a of the bracket 41 is formed with a recessed portion 41c that is recessed so as to allow the harness 33 to escape. Thereby, the current blocking member 40 and the fixing portion 41a of the bracket 41 are brought into close contact with each other without a gap. Instead of the recess 41c, a notch that is notched so as to allow the harness 33 to escape may be formed.
  • the bracket 41 passes through the hole 40a, and is fixed to the tongue-like portion 41b to which the outside temperature thermistor 32 is fixed and the current blocking member 40.
  • the fixed portion 41 a is located on the opposite side of the current blocking member 40.
  • the bracket 41 is fixed to the current blocking member 40 from the opposite side of the outside temperature thermistor 32, the outside temperature thermistor 32 can be detached from the opposite side across the evaporator 14. Therefore, maintainability can be improved.
  • the lower end of the tongue-like portion 41b located on the outside temperature thermistor 32 side of the current blocking member 40 in the bracket 41 is positioned below the horizontal with respect to the hole 40a. Has been placed.
  • the position of the lower end of the tongue-like portion 41b is arranged at a position higher than the horizontal with respect to the hole 40a, if the position is slightly higher than the horizontal (substantially horizontal), the water attached to the outside temperature thermistor 32 is bracketed. Intrusion into the hole 40a through 41 can be suppressed by the action of water viscosity and surface tension. In such a case, it can be considered that the position of the lower end of the tongue-shaped part 41b is arrange
  • the lower end of the tongue-like portion 41 b is disposed at a position below the horizontal with respect to the hole 40 a” means that the lower end position of the tongue-like portion 41 b is attached to the outside temperature thermistor 32. It also means that it is disposed at a position slightly higher than horizontal (substantially horizontal position) with respect to the hole 40a to such an extent that water can be prevented from entering the hole 40a through the bracket 41.
  • the fixing portion 41 a located on the opposite side of the ambient temperature thermistor 32 with respect to the current blocking member 40 in the bracket 41 has a shape that closes the hole 40 a. ing.
  • the bracket 41 is in contact with a portion of the current blocking member 40 that forms the edge of the hole 40 a on the outside temperature thermistor 32 side. Thereby, it can suppress further that external air passes the hole 40a.
  • the bracket 41 is bent so as to form a gap between the outside temperature thermistor 32 and the evaporator 14.
  • the bracket 41 has a shape in which the harness 33 is sandwiched between the current shielding member 40.
  • the tongue-shaped portion 41 b of the bracket 41 is disposed on the upstream side with respect to the current blocking member 40, and the fixing portion 41 a of the bracket 41 is disposed on the downstream side with respect to the current blocking member 40. Has been.
  • a protrusion 41 d is formed on the tongue 41 b of the bracket 41.
  • the protruding portion 41d is a protrusion preventing portion (a protrusion preventing device) that prevents the harness 33 from protruding from the bracket 41.
  • the protruding portion 41d protrudes from the upper portion of the tongue-shaped portion 41b toward the outside temperature thermistor 32 side.
  • the protruding portion 41d is formed by bending the upper end of the tongue-like portion 41b toward the outside air temperature thermistor 32 side.
  • the outside temperature thermistor 32 is fixed to the bracket 41 via a resin clip 44.
  • the clip 44 is a thermistor holding device that holds the outside temperature thermistor 32 to the bracket 41.
  • the tip of the outside temperature thermistor 32 is arranged downward in the direction of gravity.
  • the outside temperature thermistor 32 is arranged such that the end portion on the side away from the harness 33 is below the horizontal position with respect to the end portion on the side close to the harness 33.
  • the harness 33 extending from the outside temperature thermistor 32 upward in the gravity direction is in contact with the protrusion 41d and bent in the horizontal direction.
  • a notch 41e is formed in the fixing part 41a of the bracket 41.
  • the harness 33 passes through the hole 40a through the notch 41e.
  • the notch 41e is notched so as to allow the harness 33 to escape.
  • a hole penetrating the front and back of the fixed portion 41a may be formed.
  • the outside temperature thermistor 32 is arranged away from the evaporator 14 and the current blocking member 40.
  • the tip of the outside temperature thermistor 32 protrudes from one end 41f of the tongue-like portion 41b.
  • the distance a1 from the front end of the outside air temperature thermistor 32 to the one end 41f of the tongue-like portion 41b is smaller than the distance b1 from the front end of the outside air temperature thermistor 32 to the current blocking member 40.
  • the distance a1 from the tip of the outside temperature thermistor 32 to the one end 41f of the tongue-like portion 41b is smaller than the distance from the tip of the outside temperature thermistor 32 to the evaporator 14.
  • One end portion 41f of the tongue-shaped portion 41b is an end portion of the end portion of the tongue-shaped portion 41b that is different from the end portion where the protruding portion 41d exists, and is an end portion from which the outside temperature thermistor 32 protrudes.
  • the second embodiment for example, the lower end of the tongue 41b.
  • the outside temperature thermistor 32 is assembled to the bracket 41. Specifically, the outside air temperature thermistor 32 is fitted into a clip 44 previously attached to the bracket 41.
  • the harness 33 extending from the outside temperature thermistor 32 is inserted into the notch 41 e of the bracket 41 along the bracket 41. At this time, the harness 33 is bent in contact with the protrusion 41d of the bracket 41. That is, the harness 33 is prevented from protruding from the tongue 41b of the bracket 41.
  • the tongue 41b of the bracket 41 is inserted into the hole 40a of the current blocking member 40, and the bracket 41 is fixed to the current blocking member 40 by the fixing portion 41a.
  • the harness 33 does not protrude from the tongue-shaped portion 41b of the bracket 41, the tongue-shaped portion 41b of the bracket 41 can be easily inserted into the hole 40a of the current blocking member 40.
  • the protrusion 41d prevents the harness 33 from protruding from the bracket 41. Thereby, the assembly
  • the outside temperature thermistor 32 is arranged such that the end on the side away from the harness 33 is below the horizontal with respect to the end near the harness 33. According to this, when water adheres to the outside temperature thermistor 32 due to the reason that the humidity of the outside air is high, it is possible to suppress the water from entering the hole 40a through the bracket 41 and the harness 33.
  • the outside temperature thermistor 32 is arranged away from at least one of the heat exchanger 14 and the current blocking member 40. Thereby, it is possible to prevent the outside temperature thermistor 32 from coming into contact with at least one of the heat exchanger 14 and the current blocking member 40 and erroneously detecting the temperature.
  • the distance a1 from the tip of the outside temperature thermistor 32 to the one end 41f of the tongue-like portion 41b is the distance b1 from the tip of the outside temperature thermistor 32 to at least one of the heat exchanger 14 and the current blocking member 40. Is smaller than
  • the outside temperature thermistor 32 is arranged on the outside air suction side of the evaporator 14 and the bracket 41 is fixed to the current blocking member 40 from the downstream side in the outside air flow direction.
  • 32 may be disposed on the outside air blowing side of the evaporator 14, and the bracket 41 may be fixed to the current blocking member 40 from the upstream side in the outside air flow direction.
  • the outside temperature thermistor 32 can be easily detached even if the maintenance opening of the housing 18 is formed at a portion facing the outside air suction surface of the evaporator 14.
  • a packing may be sandwiched between the fixing portion 41a of the bracket 41 and the current blocking member 40. According to this, since it can suppress further that external air passes through the hole 40a, the heat exchange performance fall by a wind leak can be suppressed further.
  • the hole 40a is provided in the current blocking member 40, but a cutout shape may be provided instead of the hole 40a. According to this, since the shape of the current blocking member 40 can be simplified, the current blocking member 40 can be easily formed.
  • the flow dividing member 40 and the merging portion of the internal fluid are formed at the left and right ends of the evaporator 14, so the current blocking members 40 are disposed on the left and right sides of the evaporator 14.
  • the internal fluid diversion part and the confluence part are formed at the upper and lower ends of 14, it is only necessary that the current blocking members 40 are disposed on the upper and lower sides of the evaporator 14.
  • the tongue-like portion 41b of the bracket 41 is disposed below the fixing portion 41a in the gravity direction so that water adhering to the outside temperature thermistor 32 can be prevented from entering the hole 40a through the bracket 41. Is desirable. In other words, it is desirable that the tongue 41b of the bracket 41 penetrates the hole 40a of the current blocking member 40 from the upper side in the gravity direction toward the lower side in the gravity direction.
  • the bracket 41 and the outside air temperature thermistor 32 may be vertically symmetric with respect to the second embodiment. That is, the protrusion 41d of the bracket 41 may be formed at the lower portion of the tongue-like portion 41b to prevent the harness 33 from protruding downward from the bracket 41.
  • the protrusion 41d is formed on the bracket 41 to prevent the harness 33 from protruding from the bracket 41.
  • the harness 33 is fixed to the bracket 41 by band fastening or adhesion. By fixing, the protrusion of the harness 33 from the bracket 41 may be prevented.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

A heat exchanger unit is provided with a heat exchanger (14), a chassis (18), a flow-blocking member (40), a temperature detection device (32), and a bracket (41). The heat exchanger brings about heat exchange between an internal fluid and an external fluid. The chassis houses the heat exchanger. The flow-blocking member is disposed between the heat exchanger and the chassis, and blocks the flow of the external fluid bypassing the heat exchanger. The temperature detection device detects the temperature of the external fluid. The bracket is interposed between the temperature detection device and the flow-blocking member. In the flow-blocking member is formed a hole (40a) passing therethrough in the direction of passage of the external fluid in the heat exchanger. The bracket is passed through the hole. An extension part (41b) as the part of the bracket where the temperature detection device is fastened, and a fastening part (41a) as the part of the bracket fastened to the flow-blocking member, are located at mutually opposite sides of the flow-blocking member. With this configuration, the bracket is such that the temperature detection device can be detached from the opposite side with the heat exchanger therebetween.

Description

熱交換器ユニットHeat exchanger unit 関連出願の相互参照Cross-reference of related applications
　本出願は、当該開示内容が参照によって本出願に組み込まれた、２０１５年５月１８日に出願された日本特許出願２０１５－１０１０８７および、２０１５年８月１９日に出願された日本特許出願２０１５－１６１６１９を基にしている。 This application includes Japanese Patent Application No. 2015-01087 filed on May 18, 2015 and Japanese Patent Application No. 2015-2015 filed on August 19, 2015, the disclosures of which are incorporated herein by reference. Based on 161619.
　本開示は、外部流体の温度を検出する装置を備える熱交換器ユニットに関する。 The present disclosure relates to a heat exchanger unit including a device for detecting the temperature of an external fluid.
　従来、特許文献１には、熱交換器と外気温センサーとを備える空気調和機の室外機が記載されている。熱交換器は、冷媒（内部流体）と外気（外部流体）とを熱交換させる。外気温センサーは、外気温度を検出する。この空気調和機の室外機では、外気温センサーは、外気温度センサーホルダーを用いて熱交換器の配管に固定されている。 Conventionally, Patent Document 1 describes an outdoor unit of an air conditioner including a heat exchanger and an outside air temperature sensor. The heat exchanger exchanges heat between the refrigerant (internal fluid) and the outside air (external fluid). The outside air temperature sensor detects the outside air temperature. In the outdoor unit of this air conditioner, the outside air temperature sensor is fixed to the pipe of the heat exchanger using an outside air temperature sensor holder.
　この空気調和機の室外機では、熱交換器、外気温センサーおよび外気温度センサーホルダーは筐体に収容されている。 In this outdoor unit of the air conditioner, the heat exchanger, the outside air temperature sensor, and the outside air temperature sensor holder are accommodated in the casing.
特開２００８－１２１９４９号公報JP 2008-121949 A
　本開示の発明者の研究によると、上記空気調和機の室外機においては、メンテナンス時、外気温センサーを脱着することがあるので、外気温センサーの脱着作業性が高くなっているのが望ましい。 According to the research of the inventor of the present disclosure, in the outdoor unit of the air conditioner, since the outside air temperature sensor may be detached during maintenance, it is desirable that the workability of the outside air temperature sensor is improved.
　しかしながら、筐体にメンテナンス用の開口部が設けられていて、外気温センサーの脱着作業をメンテナンス用の開口部を通じて行う必要がある室外機においては、外気温センサーの脱着作業性は、メンテナンス用の開口部の位置に影響される場合がある。 However, in an outdoor unit that has a maintenance opening provided in the housing and needs to be attached / detached through the maintenance opening, the attachment / detachment workability of the outside air temperature sensor is It may be affected by the position of the opening.
　例えば、メンテナンス用の開口部が、熱交換器を挟んで外気温センサーの反対側にある場合、外気温センサーの脱着作業をメンテナンス用の開口部から行おうとすると熱交換器が邪魔になることがあるため外気温センサーを容易に脱着できず、メンテナンスに支障をきたすおそれがある。 For example, if the maintenance opening is on the opposite side of the outside air temperature sensor across the heat exchanger, the heat exchanger may get in the way if the outside air temperature sensor is removed from the maintenance opening. As a result, the outside air temperature sensor cannot be easily detached, and there is a risk of hindering maintenance.
　本開示は上記点に鑑みて、外部流体の温度を検出する温度検出装置を、熱交換器を挟んだ反対側から容易に脱着可能な熱交換器ユニットを提供することを目的とする。 This indication aims at providing the heat exchanger unit which can remove | desorb easily the temperature detection apparatus which detects the temperature of an external fluid from the other side on both sides of a heat exchanger in view of the said point.
　本開示の一態様による熱交換器ユニットは、熱交換器と、筐体と、遮流部材と、温度検出装置と、ブラケットとを備える。熱交換器は、内部流体と外部流体とを熱交換させる。筐体は、熱交換器を収容する。遮流部材は、熱交換器と筐体との間に配置され、熱交換器を迂回する外部流体の流れを遮る。温度検出装置は、外部流体の温度を検出する。ブラケットは、温度検出装置と遮流部材との間に介在する。遮流部材には、熱交換器における外部流体の通過方向に貫通する孔が形成されている。ブラケットは孔を貫通している。ブラケットのうち温度検出装置が固定されている延出部と、ブラケットのうち遮流部材に固定されている固定部とが、遮流部材を挟んで互いに反対側に位置している。 The heat exchanger unit according to an aspect of the present disclosure includes a heat exchanger, a casing, a current shielding member, a temperature detection device, and a bracket. The heat exchanger exchanges heat between the internal fluid and the external fluid. The housing accommodates the heat exchanger. The flow blocking member is disposed between the heat exchanger and the housing, and blocks the flow of an external fluid that bypasses the heat exchanger. The temperature detection device detects the temperature of the external fluid. The bracket is interposed between the temperature detection device and the current blocking member. A hole penetrating in the flow direction of the external fluid in the heat exchanger is formed in the current blocking member. The bracket passes through the hole. An extension portion of the bracket to which the temperature detection device is fixed and a fixing portion of the bracket that is fixed to the current blocking member are located on opposite sides of the current blocking member.
　これによると、ブラケットは、温度検出装置の反対側から遮流部材に固定されているので、温度検出装置を、熱交換器を挟んだ反対側から脱着することが可能となる。 According to this, since the bracket is fixed to the current blocking member from the opposite side of the temperature detection device, the temperature detection device can be detached from the opposite side across the heat exchanger.
第１実施形態におけるヒートポンプ式給湯機の全体構成図である。It is a whole lineblock diagram of the heat pump type hot water heater in a 1st embodiment. 第１実施形態における熱交換器ユニットの斜視図である。It is a perspective view of the heat exchanger unit in 1st Embodiment. 第１実施形態における蒸発器の斜視図である。It is a perspective view of the evaporator in a 1st embodiment. 図３のＩＶ－ＩＶ断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. 第１実施形態におけるブラケットおよび孔の斜視図である。It is a perspective view of the bracket and hole in a 1st embodiment. 図４のＶＩ矢視図である。FIG. 6 is a view taken along arrow VI in FIG. 4. 第２実施形態におけるブラケットおよび外気温サーミスタの正面図である。It is a front view of the bracket and external temperature thermistor in 2nd Embodiment. 図７のＶＩＩＩ矢視図である。It is a VIII arrow line view of FIG. 他の実施形態におけるブラケットおよび外気温サーミスタの正面図である。It is a front view of the bracket and external temperature thermistor in other embodiments.
　以下に、図面を参照しながら本開示を実施するための複数の形態を説明する。各形態において先行する形態で説明した事項に対応する部分には同一の参照符号を付して重複する説明を省略する場合がある。各形態において構成の一部のみを説明している場合は、構成の他の部分については先行して説明した他の形態を適用することができる。各実施形態で具体的に組合せが可能であることを明示している部分同士の組合せばかりではなく、特に組合せに支障が生じなければ、明示してなくとも実施形態同士を部分的に組み合せることも可能である。 Hereinafter, a plurality of modes for carrying out the present disclosure will be described with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration. Not only combinations of parts that clearly show that combinations are possible in each embodiment, but also combinations of the embodiments even if they are not explicitly stated unless there is a problem with the combination. Is also possible.
　以下、実施形態について図に基づいて説明する。以下の各実施形態相互において、互いに同一もしくは均等である部分には、図中、同一符号を付してある。 Hereinafter, embodiments will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.
　（第１実施形態）
　図１に示すヒートポンプ式給湯機１は、ヒートポンプサイクル１０と水循環回路２０とを備えている。ヒートポンプサイクル１０は、加熱対象流体である給湯水を加熱する。水循環回路２０は、貯湯タンク２１内の給湯水を循環させる。 (First embodiment)
The heat pump type hot water heater 1 shown in FIG. 1 includes a heat pump cycle 10 and a water circulation circuit 20. The heat pump cycle 10 heats hot water that is a fluid to be heated. The water circulation circuit 20 circulates hot water in the hot water storage tank 21.
　ヒートポンプサイクル１０は、圧縮機１１、水－冷媒熱交換器１２、電気式膨張弁１３、蒸発器１４等を冷媒配管で順次接続した蒸気圧縮式の冷凍サイクルである。 The heat pump cycle 10 is a vapor compression refrigeration cycle in which a compressor 11, a water-refrigerant heat exchanger 12, an electric expansion valve 13, an evaporator 14 and the like are sequentially connected by refrigerant piping.
　圧縮機１１は、ヒートポンプサイクル１０の冷媒を吸入し、圧縮して吐出する。圧縮機１１は、固定容量型圧縮機構を電動モータで駆動する電動圧縮機である。圧縮機１１の回転数（冷媒吐出能力）は、サイクル制御装置３１から出力される制御信号によって制御される。圧縮機１１は、エンジンによって駆動されるエンジン駆動式圧縮機であってもよい。 Compressor 11 sucks the refrigerant of heat pump cycle 10 and compresses and discharges it. The compressor 11 is an electric compressor that drives a fixed displacement compression mechanism with an electric motor. The rotation speed (refrigerant discharge capacity) of the compressor 11 is controlled by a control signal output from the cycle control device 31. The compressor 11 may be an engine-driven compressor that is driven by an engine.
　水－冷媒熱交換器１２は、圧縮機１１から吐出された高温高圧冷媒の有する熱を給湯水に放熱させて、給湯水を加熱する加熱用熱交換器である。水－冷媒熱交換器１２は、圧縮機１１から吐出された高温高圧冷媒が通過する冷媒通路１２ａと、水循環回路２０を流れる給湯水が通過する水通路１２ｂとを有している。 The water-refrigerant heat exchanger 12 is a heating heat exchanger that heats the hot water by dissipating the heat of the high-temperature and high-pressure refrigerant discharged from the compressor 11 to the hot water. The water-refrigerant heat exchanger 12 has a refrigerant passage 12a through which the high-temperature and high-pressure refrigerant discharged from the compressor 11 passes, and a water passage 12b through which hot water flowing through the water circulation circuit 20 passes.
　電気式膨張弁１３は、水－冷媒熱交換器１２の冷媒通路１２ａから流出した高圧冷媒を減圧膨張させる可変絞り機構である。電気式膨張弁１３は、絞り開度を変更可能に構成された弁体と、この弁体の絞り開度を変化させる電動アクチュエータとを有している。電気式膨張弁１３の絞り開度は、サイクル制御装置３１から出力される制御信号によって制御される。 The electric expansion valve 13 is a variable throttle mechanism that decompresses and expands the high-pressure refrigerant that has flowed out of the refrigerant passage 12a of the water-refrigerant heat exchanger 12. The electric expansion valve 13 includes a valve body configured to be able to change the throttle opening, and an electric actuator that changes the throttle opening of the valve body. The throttle opening degree of the electric expansion valve 13 is controlled by a control signal output from the cycle control device 31.
　蒸発器１４は、電気式膨張弁１３にて減圧された低圧冷媒と送風ファン１５により送風された外気（室外空気）とを熱交換させることによって、低圧冷媒を蒸発させて吸熱作用を発揮させる吸熱用の熱交換器である。 The evaporator 14 performs heat exchange between the low-pressure refrigerant decompressed by the electric expansion valve 13 and the outside air (outdoor air) blown by the blower fan 15, thereby evaporating the low-pressure refrigerant and exerting an endothermic effect. It is a heat exchanger for use.
　送風ファン１５は、軸流ファンを電動モータで駆動する電動送風機であり、サイクル制御装置３１から出力される制御電圧によって送風能力、すなわち回転数（送風空気量）が制御される。 The blower fan 15 is an electric blower that drives an axial fan with an electric motor, and the blower capacity, that is, the rotational speed (the amount of blown air) is controlled by the control voltage output from the cycle control device 31.
　圧縮機１１、水－冷媒熱交換器１２および電気式膨張弁１３は、図１の一点鎖線に示すように、１つの金属製の筐体１６内に収容されてヒートポンプユニット１７を構成している。 The compressor 11, the water-refrigerant heat exchanger 12, and the electric expansion valve 13 are accommodated in a single metal casing 16 and constitute a heat pump unit 17 as shown by a one-dot chain line in FIG. .
　蒸発器１４および送風ファン１５は、図１の二点鎖線に示すように、１つの金属製の筐体１８内に収容されて熱交換器ユニット１９を構成している。本例では、熱交換器ユニット１９は屋内に設置されている。 The evaporator 14 and the blower fan 15 are housed in a single metal casing 18 to form a heat exchanger unit 19 as shown by a two-dot chain line in FIG. In this example, the heat exchanger unit 19 is installed indoors.
　水循環回路２０の貯湯タンク２１は、高温の給湯水を貯留する温水タンクである。貯湯タンク２１は、耐食性に優れた金属（例えば、ステンレス）で形成されている。貯湯タンク２１は、断熱構造を有しており、高温の給湯水を長時間保温することができる。 The hot water storage tank 21 of the water circulation circuit 20 is a hot water tank that stores hot hot water. The hot water storage tank 21 is formed of a metal (for example, stainless steel) having excellent corrosion resistance. The hot water storage tank 21 has a heat insulating structure and can keep hot hot water for a long time.
　貯湯タンク２１に貯留された給湯水は、貯湯タンク２１の上部に設けられた出湯口から出湯される。貯湯タンク２１内の下部には、水道水が給水される給水口が設けられている。 Hot water stored in the hot water storage tank 21 is discharged from a hot water outlet provided in the upper part of the hot water storage tank 21. In the lower part of the hot water storage tank 21, a water supply port for supplying tap water is provided.
　水循環回路２０には電動水ポンプ２２が配置されている。電動水ポンプ２２は、給湯水を循環させる水圧送装置である。電動水ポンプ２２の吐出流量（水圧送能力）は、貯湯タンク側制御装置から出力される制御信号によって制御される。電動水ポンプ２２の吐出口には、水－冷媒熱交換器１２の水通路１２ｂが接続されている。 An electric water pump 22 is disposed in the water circulation circuit 20. The electric water pump 22 is a water pressure feeding device that circulates hot water. The discharge flow rate (water pressure feeding capacity) of the electric water pump 22 is controlled by a control signal output from the hot water tank side control device. A water passage 12 b of the water-refrigerant heat exchanger 12 is connected to the discharge port of the electric water pump 22.
　貯湯タンク側制御装置が電動水ポンプ２２を作動させると、貯湯タンク２１の給湯水は、電動水ポンプ２２、水－冷媒熱交換器１２の水通路１２ｂ、貯湯タンク２１の順に循環する。 When the hot water storage tank side control device operates the electric water pump 22, hot water in the hot water storage tank 21 circulates in the order of the electric water pump 22, the water passage 12 b of the water-refrigerant heat exchanger 12, and the hot water storage tank 21.
　水循環回路２０の貯湯タンク２１および電動水ポンプ２２は、図１の破線に示すように、１つの金属製の筐体２３内に収容されてタンクユニット２４として一体的に構成されている。 The hot water storage tank 21 and the electric water pump 22 of the water circulation circuit 20 are housed in one metal casing 23 and are integrally configured as a tank unit 24 as shown by a broken line in FIG.
　タンクユニット２４およびヒートポンプユニット１７は、２つの水配管によって接続されている。１つ目の水配管は、電動水ポンプ２２の吐出側と水－冷媒熱交換器１２の水通路１２ｂ入口側とを接続している。２つ目の水配管は、水－冷媒熱交換器１２の水通路１２ｂ出口側と貯湯タンク２１の給湯水入口とを接続している。 The tank unit 24 and the heat pump unit 17 are connected by two water pipes. The first water pipe connects the discharge side of the electric water pump 22 and the water passage 12 b inlet side of the water-refrigerant heat exchanger 12. The second water pipe connects the water passage 12 b outlet side of the water-refrigerant heat exchanger 12 and the hot water supply inlet of the hot water storage tank 21.
　サイクル制御装置３１は、ＣＰＵ、ＲＯＭおよびＲＡＭ等を含む周知のマイクロコンピュータとその周辺回路から構成されている。 The cycle control device 31 includes a known microcomputer including a CPU, a ROM, a RAM, and the like and peripheral circuits thereof.
　サイクル制御装置３１の出力側には、圧縮機１１の電動モータ、電気式膨張弁１３の電動アクチュエータ、送風ファン１５の電動モータ等が接続されている。サイクル制御装置３１は、これらの接続機器の作動を制御する。 The output side of the cycle control device 31 is connected to an electric motor of the compressor 11, an electric actuator of the electric expansion valve 13, an electric motor of the blower fan 15, and the like. The cycle control device 31 controls the operation of these connected devices.
　サイクル制御装置３１のうち圧縮機１１（電動モータ）の回転数制御を行う構成（例えばハードウェアおよびソフトウェア）は、圧縮機制御部３１ａである。 The structure (for example, hardware and software) which performs rotation speed control of the compressor 11 (electric motor) among the cycle control devices 31 is the compressor control unit 31a.
　サイクル制御装置３１のうち電気式膨張弁１３（電動アクチュエータ）の絞り開度制御を行う構成は、膨張弁制御部３１ｂである。 In the cycle control device 31, the configuration for controlling the throttle opening degree of the electric expansion valve 13 (electric actuator) is an expansion valve control unit 31b.
　サイクル制御装置３１のうち送風ファン１５の作動、すなわち送風ファン１５の送風能力を制御する構成は、送風能力制御部３１ｃである。 The structure which controls the action | operation of the ventilation fan 15, ie, the ventilation capability of the ventilation fan 15, among the cycle control apparatuses 31 is the ventilation capability control part 31c.
　圧縮機制御部３１ａ、膨張弁制御部３１ｂおよび送風能力制御部３１ｃは、サイクル制御装置３１とは別の制御装置によって構成されていてもよい。 The compressor control unit 31a, the expansion valve control unit 31b, and the blower capacity control unit 31c may be configured by a control device different from the cycle control device 31.
　サイクル制御装置３１の入力側には、外気温サーミスタ３２や各種センサが接続されており、これらの検出信号がサイクル制御装置３１へ入力される。 The outside temperature thermistor 32 and various sensors are connected to the input side of the cycle control device 31, and these detection signals are input to the cycle control device 31.
　外気温サーミスタ３２は、蒸発器１４に吸い込まれる外気の温度Ｔａｍを検出する温度検出装置である。外気温サーミスタ３２の検出信号は、ハーネス３３を介してサイクル制御装置３１へ入力される。ハーネス３３は、電気信号を伝える電線である。 The outside temperature thermistor 32 is a temperature detection device that detects the temperature Tam of the outside air sucked into the evaporator 14. A detection signal from the outside temperature thermistor 32 is input to the cycle control device 31 via the harness 33. The harness 33 is an electric wire that transmits an electric signal.
　図２中、上下の矢印は、熱交換器ユニット１９の設置状態における上下方向（重力方向）を示している。 In FIG. 2, the up and down arrows indicate the up and down direction (gravity direction) in the installed state of the heat exchanger unit 19.
　熱交換器ユニット１９の筐体１８の内部には、図２の破線矢印に示すように外気が流れる外気通路が形成されている。筐体１８内の外気通路には蒸発器１４が配置されている。 An outside air passage through which outside air flows is formed inside the housing 18 of the heat exchanger unit 19 as shown by the broken line arrows in FIG. An evaporator 14 is disposed in the outside air passage in the housing 18.
　筐体１８の外気流れ最上流部には、外気吸込口１８ａが形成されている。筐体１８の外気流れ最下流部には、外気吹出口１８ｂが形成されている。 An outer air suction port 18 a is formed in the most upstream part of the outer air flow of the housing 18. An outside air outlet 18 b is formed at the most downstream part of the outside air flow of the housing 18.
　図２の実線矢印に示すように、外気吸込口１８ａは筐体１８内の外気通路に外気を吸い込み、外気吹出口１８ｂは筐体１８内の外気通路から外気を吹き出す。外気吸込口１８ａおよび外気吹出口１８ｂは、蒸発器１４の外気吸込面および外気吹出面に対して非対向に配置されている。換言すれば、外気吸込口１８ａおよび外気吹出口１８ｂは、蒸発器１４のコア面に対して非対向に配置されている。 2, the outside air suction port 18 a sucks outside air into the outside air passage in the housing 18, and the outside air outlet 18 b blows out outside air from the outside air passage in the housing 18. The outside air inlet 18a and the outside air outlet 18b are disposed so as not to face the outside air suction surface and the outside air blowing surface of the evaporator 14. In other words, the outside air inlet 18 a and the outside air outlet 18 b are disposed so as not to face the core surface of the evaporator 14.
　外気吸込口１８ａには、屋外から外気を導入する外気導入ダクトが筐体１８の外部から接続されている。外気吹出口１８ｂには、屋外へ外気を排出する外気排出ダクトが筐体１８の外部から接続されている。 An outside air introduction duct for introducing outside air from the outside is connected to the outside air inlet 18 a from the outside of the housing 18. An outside air discharge duct for discharging outside air to the outside is connected to the outside air outlet 18 b from the outside of the housing 18.
　筐体１８のうち蒸発器１４の外気吹出面に対向する部位にはメンテナンス用開口部が形成されており、メンテナンス用開口部は開口カバー１８ｃによって塞がれている。開口カバー１８ｃは、筐体１８に対して容易に脱着可能になっている。筐体１８のうち蒸発器１４の外気吸込面に対向する部位にはメンテナンス用開口部が形成されていない。 A maintenance opening is formed in a portion of the housing 18 that faces the outside air blowing surface of the evaporator 14, and the maintenance opening is closed by an opening cover 18c. The opening cover 18 c can be easily attached to and detached from the housing 18. A maintenance opening is not formed in a portion of the housing 18 that faces the outside air suction surface of the evaporator 14.
　図３に模式的に示すように、蒸発器１４は、ヘアピン状に屈曲した複数の伝熱管と、平板状の複数のフィンとを有している。蒸発器１４は、複数の伝熱管が複数のフィンに対して垂直方向に差し込まれたクロスフィンチューブ型熱交換器である。蒸発器１４は、複数の伝熱管が左右方向に延びるように配置されている。 As schematically shown in FIG. 3, the evaporator 14 has a plurality of heat transfer tubes bent in a hairpin shape and a plurality of flat fins. The evaporator 14 is a cross fin tube heat exchanger in which a plurality of heat transfer tubes are inserted in a direction perpendicular to the plurality of fins. The evaporator 14 is arrange | positioned so that a some heat exchanger tube may be extended in the left-right direction.
　蒸発器１４では、伝熱管の内部を流れる内部流体と、伝熱管の外部を流れる外部流体とが熱交換する。内部流体は、電気式膨張弁１３にて減圧された低圧冷媒であり、外部流体は、送風ファン１５により送風された外気である。 In the evaporator 14, heat exchange is performed between the internal fluid flowing inside the heat transfer tube and the external fluid flowing outside the heat transfer tube. The internal fluid is low-pressure refrigerant decompressed by the electric expansion valve 13, and the external fluid is outside air blown by the blower fan 15.
　蒸発器１４の左右両端部には、複数の伝熱管に内部流体を分流させる分流部と、複数の伝熱管から内部流体を合流させる合流部とが形成されている。 At both left and right end portions of the evaporator 14, there are formed a diverting portion for diverting the internal fluid to the plurality of heat transfer tubes and a confluence portion for merging the internal fluid from the plurality of heat transfer tubes.
　筐体１８内において蒸発器１４と筐体１８との間には、蒸発器１４を迂回する外気の流れを遮る遮流部材４０が配置されている。遮流部材４０は、蒸発器１４と筐体１８との間の隙間を塞ぐ板状に形成されており、蒸発器１４の左右両側に配置されている。遮流部材４０には、その表裏を貫通する孔４０ａが形成されている。孔４０ａは、遮流部材４０を、蒸発器１４における外気の通過方向に貫通している。 A current blocking member 40 that blocks the flow of outside air that bypasses the evaporator 14 is disposed between the evaporator 14 and the housing 18 in the housing 18. The current blocking member 40 is formed in a plate shape that closes the gap between the evaporator 14 and the housing 18, and is disposed on both the left and right sides of the evaporator 14. The current blocking member 40 is formed with a hole 40a penetrating the front and back. The hole 40a penetrates the current blocking member 40 in the direction in which the outside air passes through the evaporator 14.
　図４、図５、図６に示すように、遮流部材４０にはブラケット４１がネジ４２によって締結固定されている。ブラケット４１は、外気温サーミスタ３２と遮流部材４０との間に介在する部材である。 As shown in FIGS. 4, 5, and 6, a bracket 41 is fastened and fixed to the current blocking member 40 by a screw 42. The bracket 41 is a member interposed between the outside temperature thermistor 32 and the current blocking member 40.
　ブラケット４１には外気温サーミスタ３２が結束バンド４３によって固定されている。外気温サーミスタ３２は、クランプ等によってブラケット４１に固定されていてもよい。 The outside temperature thermistor 32 is fixed to the bracket 41 by a binding band 43. The outside air temperature thermistor 32 may be fixed to the bracket 41 by a clamp or the like.
　ブラケット４１は、固定部４１ａおよび舌状部４１ｂを有している。ブラケット４１は、固定部４１ａにて遮流部材４０に締結固定されている。固定部４１ａは、遮流部材４０に対して外気流れ方向下流側に配置されている。したがって、ブラケット４１は、外気流れ方向下流側から遮流部材４０に固定されている。 The bracket 41 has a fixing part 41a and a tongue-like part 41b. The bracket 41 is fastened and fixed to the current blocking member 40 by a fixing portion 41a. The fixed portion 41 a is disposed on the downstream side in the outside air flow direction with respect to the current blocking member 40. Therefore, the bracket 41 is fixed to the current blocking member 40 from the downstream side in the outside air flow direction.
　舌状部４１ｂは、固定部４１ａから突出し、遮流部材４０の孔４０ａを外気流れ方向上流側に向かって貫通している。舌状部４１ｂには外気温サーミスタ３２が固定されている。したがって、外気温サーミスタ３２は、蒸発器１４に対して外気流れ方向上流側に配置されている。舌状部４１ｂは固定部４１ａから曲がりながら突出する延出部であってもよい。舌状部４１ｂは、固定部４１ａから舌状に突出してもよい。 The tongue-like portion 41b protrudes from the fixed portion 41a and penetrates the hole 40a of the current blocking member 40 toward the upstream side in the outside air flow direction. An outside temperature thermistor 32 is fixed to the tongue 41b. Therefore, the outside air temperature thermistor 32 is arranged on the upstream side in the outside air flow direction with respect to the evaporator 14. The tongue portion 41b may be an extending portion that protrudes while being bent from the fixed portion 41a. The tongue portion 41b may protrude in a tongue shape from the fixed portion 41a.
　固定部４１ａは、孔４０ａよりも大きくなっており、孔４０ａを外気流れ方向下流側から塞いでいる。 The fixing part 41a is larger than the hole 40a, and closes the hole 40a from the downstream side in the outside air flow direction.
　図４に示すように、舌状部４１ｂが屈曲した形状になっていることによって、外気温サーミスタ３２と蒸発器１４の表面との間に隙間が形成されている。舌状部４１ｂの根元部近傍部位は、遮流部材４０のうち孔４０ａの縁部を形成する部位に当接して孔４０ａを塞いでいる。 As shown in FIG. 4, a gap is formed between the outside temperature thermistor 32 and the surface of the evaporator 14 due to the bent shape of the tongue portion 41 b. A portion of the tongue-like portion 41b in the vicinity of the root portion abuts against a portion of the current blocking member 40 that forms the edge of the hole 40a and closes the hole 40a.
　図６に示すように、舌状部４１ｂは、先端が斜め下を向いている。これにより、舌状部４１ｂの下端は、孔４０ａよりも重力方向下方に位置している。換言すれば、舌状部４１ｂの下端は、孔４０ａよりも少なくとも水平以下の位置に配置されている。 As shown in FIG. 6, the tip of the tongue 41b is directed obliquely downward. Thereby, the lower end of the tongue-shaped part 41b is located below the direction of gravity rather than the hole 40a. In other words, the lower end of the tongue-like portion 41b is arranged at a position at least below horizontal than the hole 40a.
　外気温サーミスタ３２に接続されたハーネス３３は、ブラケット４１の舌状部４１ｂに沿って孔４０ａを貫通し、遮流部材４０とブラケット４１の固定部４１ａとの間に挟み込まれている。 The harness 33 connected to the outside temperature thermistor 32 passes through the hole 40a along the tongue-like portion 41b of the bracket 41, and is sandwiched between the current blocking member 40 and the fixing portion 41a of the bracket 41.
　ブラケット４１の固定部４１ａには、ハーネス３３を逃がすように窪んだ窪み部４１ｃが形成されている。これにより、遮流部材４０とブラケット４１の固定部４１ａとが隙間なく密接されるようになっている。窪み部４１ｃの代わりに、ハーネス３３を逃がすように切り欠かれた切欠部が形成されていてもよい。 The fixing portion 41a of the bracket 41 is formed with a recessed portion 41c that is recessed so as to allow the harness 33 to escape. Thereby, the current blocking member 40 and the fixing portion 41a of the bracket 41 are brought into close contact with each other without a gap. Instead of the recess 41c, a notch that is notched so as to allow the harness 33 to escape may be formed.
　本実施形態では、図４～図６に示すように、ブラケット４１は、孔４０ａを貫通しており、外気温サーミスタ３２が固定されている舌状部４１ｂと、遮流部材４０に固定されている固定部４１ａとが遮流部材４０を挟んで互いに反対側に位置している。 In the present embodiment, as shown in FIGS. 4 to 6, the bracket 41 passes through the hole 40a, and is fixed to the tongue-like portion 41b to which the outside temperature thermistor 32 is fixed and the current blocking member 40. The fixed portion 41 a is located on the opposite side of the current blocking member 40.
　これによると、ブラケット４１が外気温サーミスタ３２の反対側から遮流部材４０に固定されているので、外気温サーミスタ３２を、蒸発器１４を挟んだ反対側から脱着することが可能となる。そのため、メンテナンス性を向上できる。 According to this, since the bracket 41 is fixed to the current blocking member 40 from the opposite side of the outside temperature thermistor 32, the outside temperature thermistor 32 can be detached from the opposite side across the evaporator 14. Therefore, maintainability can be improved.
　本実施形態では、図６に示すように、ブラケット４１のうち遮流部材４０よりも外気温サーミスタ３２側に位置している舌状部４１ｂの下端は、孔４０ａに対して水平以下の位置に配置されている。 In the present embodiment, as shown in FIG. 6, the lower end of the tongue-like portion 41b located on the outside temperature thermistor 32 side of the current blocking member 40 in the bracket 41 is positioned below the horizontal with respect to the hole 40a. Has been placed.
　これによると、外気の湿度が高い等の理由によって外気温サーミスタ３２に水が付着したときに、水がブラケット４１を伝って孔４０ａに侵入することを抑制できる。 According to this, when water adheres to the outside temperature thermistor 32 due to high humidity of the outside air, it is possible to suppress the water from entering the hole 40a through the bracket 41.
　舌状部４１ｂの下端の位置が孔４０ａに対して水平以上の位置に配置されていても、その位置がわずかに水平以上（ほぼ水平）であれば、外気温サーミスタ３２に付着した水がブラケット４１を伝って孔４０ａに侵入することを、水の粘性や表面張力の作用によって抑制できる。このような場合、舌状部４１ｂの下端の位置が孔４０ａに対して水平に配置されているとみなすことができる。 Even if the position of the lower end of the tongue-like portion 41b is arranged at a position higher than the horizontal with respect to the hole 40a, if the position is slightly higher than the horizontal (substantially horizontal), the water attached to the outside temperature thermistor 32 is bracketed. Intrusion into the hole 40a through 41 can be suppressed by the action of water viscosity and surface tension. In such a case, it can be considered that the position of the lower end of the tongue-shaped part 41b is arrange | positioned horizontally with respect to the hole 40a.
　すなわち、本実施形態において、「舌状部４１ｂの下端が孔４０ａに対して水平以下の位置に配置されている」とは、舌状部４１ｂの下端の位置が、外気温サーミスタ３２に付着した水がブラケット４１を伝って孔４０ａに侵入することを抑制できる程度に孔４０ａに対してわずかに水平以上の位置（ほぼ水平の位置）に配置されていることも含む意味である。 That is, in the present embodiment, “the lower end of the tongue-like portion 41 b is disposed at a position below the horizontal with respect to the hole 40 a” means that the lower end position of the tongue-like portion 41 b is attached to the outside temperature thermistor 32. It also means that it is disposed at a position slightly higher than horizontal (substantially horizontal position) with respect to the hole 40a to such an extent that water can be prevented from entering the hole 40a through the bracket 41.
　本実施形態では、図４、図６に示すように、ブラケット４１のうち遮流部材４０に対して外気温サーミスタ３２の反対側に位置している固定部４１ａは、孔４０ａを塞ぐ形状になっている。 In the present embodiment, as shown in FIGS. 4 and 6, the fixing portion 41 a located on the opposite side of the ambient temperature thermistor 32 with respect to the current blocking member 40 in the bracket 41 has a shape that closes the hole 40 a. ing.
　これにより、孔４０ａに外気が通過することを抑制できるので、風漏れによる熱交換性能低下を抑制できる。 Thereby, since it is possible to suppress the outside air from passing through the hole 40a, it is possible to suppress a decrease in heat exchange performance due to wind leakage.
　本実施形態では、図４に示すように、ブラケット４１は、遮流部材４０のうち、孔４０ａの外気温サーミスタ３２側の縁部を形成する部位に当接している。これにより、孔４０ａに外気が通過することを一層抑制できる。 In the present embodiment, as shown in FIG. 4, the bracket 41 is in contact with a portion of the current blocking member 40 that forms the edge of the hole 40 a on the outside temperature thermistor 32 side. Thereby, it can suppress further that external air passes the hole 40a.
　本実施形態では、図４に示すように、ブラケット４１は、外気温サーミスタ３２と蒸発器１４との間に隙間を形成させるように屈曲した形状になっている。 In the present embodiment, as shown in FIG. 4, the bracket 41 is bent so as to form a gap between the outside temperature thermistor 32 and the evaporator 14.
　これによると、外気温サーミスタ３２が蒸発器１４から輻射の影響を受けることを抑制できるとともに、蒸発器１４の表面で発生した霜が外気温サーミスタ３２に付着することを抑制できるので、外気温サーミスタ３２の検出精度を向上できる。 According to this, it is possible to suppress the outside temperature thermistor 32 from being affected by radiation from the evaporator 14, and it is possible to suppress the frost generated on the surface of the evaporator 14 from adhering to the outside temperature thermistor 32. 32 detection accuracy can be improved.
　本実施形態では、図４、図６に示すように、ブラケット４１は、ハーネス３３を遮流部材４０との間に挟み込む形状になっている。 In the present embodiment, as shown in FIGS. 4 and 6, the bracket 41 has a shape in which the harness 33 is sandwiched between the current shielding member 40.
　これにより、外気温サーミスタ３２がブラケット４１から脱落することを抑制できるので、外気温サーミスタ３２をブラケット４１に確実に固定できる。 This prevents the outside temperature thermistor 32 from falling off the bracket 41, so that the outside temperature thermistor 32 can be securely fixed to the bracket 41.
　本実施形態では、ブラケット４１の舌状部４１ｂが遮流部材４０に対して外気流れ上流側に配置されており、ブラケット４１の固定部４１ａが遮流部材４０に対して外気流れ下流側に配置されている。 In the present embodiment, the tongue-shaped portion 41 b of the bracket 41 is disposed on the upstream side with respect to the current blocking member 40, and the fixing portion 41 a of the bracket 41 is disposed on the downstream side with respect to the current blocking member 40. Has been.
　これによると、ブラケット４１の舌状部４１ｂに外気の風圧が作用すると、ブラケット４１の固定部４１ａを遮流部材４０に押さえつける方向の力が発生する。そのため、ブラケット４１を遮流部材４０に確実に固定できる。 According to this, when the wind pressure of the outside air acts on the tongue 41b of the bracket 41, a force in the direction of pressing the fixing portion 41a of the bracket 41 against the current blocking member 40 is generated. Therefore, the bracket 41 can be reliably fixed to the current blocking member 40.
　（第２実施形態）
　本実施形態では、図７および図８に示すように、ブラケット４１の舌状部４１ｂに突起部４１ｄが形成されている。 (Second Embodiment)
In the present embodiment, as shown in FIGS. 7 and 8, a protrusion 41 d is formed on the tongue 41 b of the bracket 41.
　突起部４１ｄは、ハーネス３３がブラケット４１からはみ出すことを防止するはみ出し防止部（はみ出し防止装置）である。 The protruding portion 41d is a protrusion preventing portion (a protrusion preventing device) that prevents the harness 33 from protruding from the bracket 41.
　突起部４１ｄは、舌状部４１ｂの上部から外気温サーミスタ３２側に向かって突出している。突起部４１ｄは、舌状部４１ｂの上端が外気温サーミスタ３２側に向かって折り曲げられることによって形成されている。 The protruding portion 41d protrudes from the upper portion of the tongue-shaped portion 41b toward the outside temperature thermistor 32 side. The protruding portion 41d is formed by bending the upper end of the tongue-like portion 41b toward the outside air temperature thermistor 32 side.
　外気温サーミスタ３２は、樹脂製のクリップ４４を介してブラケット４１に固定されている。クリップ４４は、外気温サーミスタ３２をブラケット４１に保持するサーミスタ保持装置である。 The outside temperature thermistor 32 is fixed to the bracket 41 via a resin clip 44. The clip 44 is a thermistor holding device that holds the outside temperature thermistor 32 to the bracket 41.
　外気温サーミスタ３２は、先端が重力方向下向きに配置されている。外気温サーミスタ３２は、ハーネス３３から離れた側の端部が、ハーネス３３に近い側の端部に対して水平以下の位置に配置されている。 The tip of the outside temperature thermistor 32 is arranged downward in the direction of gravity. The outside temperature thermistor 32 is arranged such that the end portion on the side away from the harness 33 is below the horizontal position with respect to the end portion on the side close to the harness 33.
　外気温サーミスタ３２から重力方向上方に向かって延びるハーネス３３は、突起部４１ｄに当接して、水平方向に屈曲している。 The harness 33 extending from the outside temperature thermistor 32 upward in the gravity direction is in contact with the protrusion 41d and bent in the horizontal direction.
　ブラケット４１の固定部４１ａには切欠部４１ｅが形成されている。ハーネス３３は、切欠部４１ｅを通じて孔４０ａを貫通している。切欠部４１ｅは、ハーネス３３を逃がすように切り欠かれている。切欠部４１ｅの代わりに、固定部４１ａの表裏を貫通する孔が形成されていてもよい。 A notch 41e is formed in the fixing part 41a of the bracket 41. The harness 33 passes through the hole 40a through the notch 41e. The notch 41e is notched so as to allow the harness 33 to escape. Instead of the cutout portion 41e, a hole penetrating the front and back of the fixed portion 41a may be formed.
　外気温サーミスタ３２は、蒸発器１４および遮流部材４０に対して離れて配置されている。 The outside temperature thermistor 32 is arranged away from the evaporator 14 and the current blocking member 40.
　外気温サーミスタ３２の先端は、舌状部４１ｂの一端部４１ｆからはみ出している。外気温サーミスタ３２の先端から舌状部４１ｂの一端部４１ｆまでの距離ａ１は、外気温サーミスタ３２の先端から遮流部材４０までの距離ｂ１よりも小さくなっている。同様に、外気温サーミスタ３２の先端から舌状部４１ｂの一端部４１ｆまでの距離ａ１は、外気温サーミスタ３２の先端から蒸発器１４までの距離よりも小さくなっている。舌状部４１ｂの一端部４１ｆは、舌状部４１ｂの端部のうち、突出部４１ｄの存在する端部とは別の端部であり、外気温サーミスタ３２がはみ出している端部である。第２実施形態では、例えば、舌状部４１ｂの下端である。 The tip of the outside temperature thermistor 32 protrudes from one end 41f of the tongue-like portion 41b. The distance a1 from the front end of the outside air temperature thermistor 32 to the one end 41f of the tongue-like portion 41b is smaller than the distance b1 from the front end of the outside air temperature thermistor 32 to the current blocking member 40. Similarly, the distance a1 from the tip of the outside temperature thermistor 32 to the one end 41f of the tongue-like portion 41b is smaller than the distance from the tip of the outside temperature thermistor 32 to the evaporator 14. One end portion 41f of the tongue-shaped portion 41b is an end portion of the end portion of the tongue-shaped portion 41b that is different from the end portion where the protruding portion 41d exists, and is an end portion from which the outside temperature thermistor 32 protrudes. In the second embodiment, for example, the lower end of the tongue 41b.
　ブラケット４１および外気温サーミスタ３２を遮流部材４０に組み付ける手順を説明する。まず、ブラケット４１に外気温サーミスタ３２を組み付ける。具体的には、予めブラケット４１に取り付けられたクリップ４４に、外気温サーミスタ３２を嵌め込む。 The procedure for assembling the bracket 41 and the outside temperature thermistor 32 to the current blocking member 40 will be described. First, the outside temperature thermistor 32 is assembled to the bracket 41. Specifically, the outside air temperature thermistor 32 is fitted into a clip 44 previously attached to the bracket 41.
　次に、外気温サーミスタ３２から延びるハーネス３３をブラケット４１に沿わせてブラケット４１の切欠部４１ｅに挿入する。このとき、ハーネス３３をブラケット４１の突起部４１ｄに当接させて屈曲させる。すなわち、ハーネス３３がブラケット４１の舌状部４１ｂからはみ出さないようにする。 Next, the harness 33 extending from the outside temperature thermistor 32 is inserted into the notch 41 e of the bracket 41 along the bracket 41. At this time, the harness 33 is bent in contact with the protrusion 41d of the bracket 41. That is, the harness 33 is prevented from protruding from the tongue 41b of the bracket 41.
　そして、ブラケット４１の舌状部４１ｂを遮流部材４０の孔４０ａに挿入して、ブラケット４１を固定部４１ａにて遮流部材４０に固定する。 Then, the tongue 41b of the bracket 41 is inserted into the hole 40a of the current blocking member 40, and the bracket 41 is fixed to the current blocking member 40 by the fixing portion 41a.
　このとき、ハーネス３３がブラケット４１の舌状部４１ｂからはみ出していると、ブラケット４１の舌状部４１ｂを遮流部材４０の孔４０ａに挿入する際にハーネス３３が孔４０ａの周縁部に引っ掛かってしまうので、ブラケット４１の舌状部４１ｂを遮流部材４０の孔４０ａに挿入することが困難になる。 At this time, if the harness 33 protrudes from the tongue 41b of the bracket 41, the harness 33 is caught by the peripheral edge of the hole 40a when the tongue 41b of the bracket 41 is inserted into the hole 40a of the current blocking member 40. Therefore, it becomes difficult to insert the tongue-like portion 41 b of the bracket 41 into the hole 40 a of the current blocking member 40.
　その点、本実施形態では、ハーネス３３がブラケット４１の舌状部４１ｂからはみ出していないので、ブラケット４１の舌状部４１ｂを遮流部材４０の孔４０ａに容易に挿入できる。 In that respect, in this embodiment, since the harness 33 does not protrude from the tongue-shaped portion 41b of the bracket 41, the tongue-shaped portion 41b of the bracket 41 can be easily inserted into the hole 40a of the current blocking member 40.
　本実施形態では、突起部４１ｄは、ハーネス３３がブラケット４１からはみ出すことを防止する。これにより、ブラケット４１および外気温サーミスタ３２の組み付けを容易化できる。 In the present embodiment, the protrusion 41d prevents the harness 33 from protruding from the bracket 41. Thereby, the assembly | attachment of the bracket 41 and the external temperature thermistor 32 can be made easy.
　本実施形態では、外気温サーミスタ３２は、ハーネス３３から離れた側の端部が、ハーネス３３に近い側の端部に対して水平以下の位置に配置されている。これによると、外気の湿度が高い等の理由によって外気温サーミスタ３２に水が付着したときに、水がブラケット４１やハーネス３３を伝って孔４０ａに侵入することを抑制できる。 In the present embodiment, the outside temperature thermistor 32 is arranged such that the end on the side away from the harness 33 is below the horizontal with respect to the end near the harness 33. According to this, when water adheres to the outside temperature thermistor 32 due to the reason that the humidity of the outside air is high, it is possible to suppress the water from entering the hole 40a through the bracket 41 and the harness 33.
　本実施形態では、外気温サーミスタ３２は、熱交換器１４および遮流部材４０のうち少なくとも一方に対して離れて配置されている。これにより、外気温サーミスタ３２が熱交換器１４および遮流部材４０のうち少なくとも一方に接触して温度を誤検知してしまうことを防止できる。 In the present embodiment, the outside temperature thermistor 32 is arranged away from at least one of the heat exchanger 14 and the current blocking member 40. Thereby, it is possible to prevent the outside temperature thermistor 32 from coming into contact with at least one of the heat exchanger 14 and the current blocking member 40 and erroneously detecting the temperature.
　本実施形態では、外気温サーミスタ３２の先端から舌状部４１ｂの一端部４１ｆまでの距離ａ１は、外気温サーミスタ３２の先端から熱交換器１４および遮流部材４０のうち少なくとも一方までの距離ｂ１よりも小さくなっている。 In this embodiment, the distance a1 from the tip of the outside temperature thermistor 32 to the one end 41f of the tongue-like portion 41b is the distance b1 from the tip of the outside temperature thermistor 32 to at least one of the heat exchanger 14 and the current blocking member 40. Is smaller than
　これによると、外気温サーミスタ３２のうちブラケット４１からはみ出している部位が風圧等の影響によって曲がっても、熱交換器１４および遮流部材４０のうち少なくとも一方に接触してしまうことを防止できる。そのため、外気温サーミスタ３２が温度を誤検知してしまうことを防止できる。 According to this, even if a portion of the outside temperature thermistor 32 that protrudes from the bracket 41 is bent due to the influence of wind pressure or the like, it can be prevented from contacting at least one of the heat exchanger 14 and the current blocking member 40. Therefore, it is possible to prevent the outside temperature thermistor 32 from erroneously detecting the temperature.
　本開示は、実施例に準拠して記述されたが、本開示は当該実施例や構造に限定されるものではないと理解される。本開示は、様々な変形例や均等範囲内の変形をも包含する。加えて、様々な組み合わせや形態、さらには、それらに一要素のみ、それ以上、あるいはそれ以下、を含む他の組み合わせや形態をも、本開示の範疇や思想範囲に入るものである。 Although the present disclosure has been described based on the embodiments, it is understood that the present disclosure is not limited to the embodiments and structures. The present disclosure includes various modifications and modifications within the equivalent range. In addition, various combinations and forms, as well as other combinations and forms including only one element, more or less, are within the scope and spirit of the present disclosure.
　上記実施形態では、外気温サーミスタ３２は蒸発器１４の外気吸込側に配置され、ブラケット４１は外気流れ方向下流側から遮流部材４０に固定されているが、これとは逆に、外気温サーミスタ３２は蒸発器１４の外気吹出側に配置され、ブラケット４１は外気流れ方向上流側から遮流部材４０に固定されていてもよい。 In the above embodiment, the outside temperature thermistor 32 is arranged on the outside air suction side of the evaporator 14 and the bracket 41 is fixed to the current blocking member 40 from the downstream side in the outside air flow direction. 32 may be disposed on the outside air blowing side of the evaporator 14, and the bracket 41 may be fixed to the current blocking member 40 from the upstream side in the outside air flow direction.
　これによると、筐体１８のメンテナンス用開口部が蒸発器１４の外気吸込面に対向する部位に形成されていても外気温サーミスタ３２を容易に脱着できる。 According to this, the outside temperature thermistor 32 can be easily detached even if the maintenance opening of the housing 18 is formed at a portion facing the outside air suction surface of the evaporator 14.
　上記実施形態において、ブラケット４１の固定部４１ａと遮流部材４０との間にパッキンが挟み込まれていてもよい。これによると、孔４０ａに外気が通過することを一層抑制できるので、風漏れによる熱交換性能低下を一層抑制できる。 In the above-described embodiment, a packing may be sandwiched between the fixing portion 41a of the bracket 41 and the current blocking member 40. According to this, since it can suppress further that external air passes through the hole 40a, the heat exchange performance fall by a wind leak can be suppressed further.
　上記実施形態では遮流部材４０に孔４０ａが設けられているが、孔４０ａの代わりに切り欠き形状が設けられていてもよい。これによると、遮流部材４０の形状を簡素化できるので、遮流部材４０を容易に形成できる。 In the above embodiment, the hole 40a is provided in the current blocking member 40, but a cutout shape may be provided instead of the hole 40a. According to this, since the shape of the current blocking member 40 can be simplified, the current blocking member 40 can be easily formed.
　上記実施形態では、蒸発器１４に本開示を適用した例を示したが、水－冷媒熱交換器１２等の種々の熱交換器に本開示を適用可能である。 In the above embodiment, an example in which the present disclosure is applied to the evaporator 14 has been shown, but the present disclosure can be applied to various heat exchangers such as the water-refrigerant heat exchanger 12.
　上記実施形態では、蒸発器１４の左右両端部に内部流体の分流部と合流部とが形成されていることから、蒸発器１４の左右両側に遮流部材４０が配置されているが、蒸発器１４の上下両端部に内部流体の分流部と合流部とが形成されている場合、蒸発器１４の上下両側に遮流部材４０が配置されていればよい。 In the above-described embodiment, the flow dividing member 40 and the merging portion of the internal fluid are formed at the left and right ends of the evaporator 14, so the current blocking members 40 are disposed on the left and right sides of the evaporator 14. In the case where the internal fluid diversion part and the confluence part are formed at the upper and lower ends of 14, it is only necessary that the current blocking members 40 are disposed on the upper and lower sides of the evaporator 14.
　この場合、外気温サーミスタ３２に付着した水がブラケット４１を伝って孔４０ａに侵入することを抑制できるように、ブラケット４１の舌状部４１ｂを固定部４１ａよりも重力方向下方側に配置するのが望ましい。換言すれば、ブラケット４１の舌状部４１ｂは、遮流部材４０の孔４０ａを重力方向上方から重力方向下方に向かって貫通しているのが望ましい。 In this case, the tongue-like portion 41b of the bracket 41 is disposed below the fixing portion 41a in the gravity direction so that water adhering to the outside temperature thermistor 32 can be prevented from entering the hole 40a through the bracket 41. Is desirable. In other words, it is desirable that the tongue 41b of the bracket 41 penetrates the hole 40a of the current blocking member 40 from the upper side in the gravity direction toward the lower side in the gravity direction.
　図９に示すように、上記第２実施形態に対してブラケット４１および外気温サーミスタ３２が上下対称になっていてもよい。すなわち、ブラケット４１の突起部４１ｄは、舌状部４１ｂの下部に形成されていて、ハーネス３３がブラケット４１から下方側にはみ出すことを防止するようになっていてもよい。 As shown in FIG. 9, the bracket 41 and the outside air temperature thermistor 32 may be vertically symmetric with respect to the second embodiment. That is, the protrusion 41d of the bracket 41 may be formed at the lower portion of the tongue-like portion 41b to prevent the harness 33 from protruding downward from the bracket 41.
　上記第２実施形態では、ブラケット４１に突起部４１ｄが形成されていることによって、ブラケット４１からのハーネス３３のはみ出しが防止されるが、ハーネス３３がブラケット４１に対してバンドによる締結固定や接着による固定がなされていることによって、ブラケット４１からのハーネス３３のはみ出しを防止してもよい。 In the second embodiment, the protrusion 41d is formed on the bracket 41 to prevent the harness 33 from protruding from the bracket 41. However, the harness 33 is fixed to the bracket 41 by band fastening or adhesion. By fixing, the protrusion of the harness 33 from the bracket 41 may be prevented.

Claims (12)

  1. 　内部流体と外部流体とを熱交換させる熱交換器（１４）と、
    　前記熱交換器（１４）を収容する筐体（１８）と、
    　前記熱交換器（１４）と前記筐体（１８）との間に配置され、前記熱交換器（１４）を迂回する前記外部流体の流れを遮る遮流部材（４０）と、
    　前記外部流体の温度を検出する温度検出装置（３２）と、
    　前記温度検出装置（３２）と前記遮流部材（４０）との間に介在するブラケット（４１）とを備え、
    　前記遮流部材（４０）には、前記熱交換器（１４）における前記外部流体の通過方向に貫通する孔（４０ａ）が形成されており、
    　前記ブラケット（４１）は前記孔（４０ａ）を貫通しており、
    　前記ブラケット（４１）のうち前記温度検出装置（３２）が固定されている延出部（４１ｂ）と、前記ブラケット（４１）のうち前記遮流部材（４０）に固定されている固定部（４１ａ）とが、前記遮流部材（４０）を挟んで互いに反対側に位置している熱交換器ユニット。     A heat exchanger (14) for exchanging heat between the internal fluid and the external fluid;
    A housing (18) for housing the heat exchanger (14);
    A current-blocking member (40) disposed between the heat exchanger (14) and the housing (18) and blocking the flow of the external fluid bypassing the heat exchanger (14);
    A temperature detection device (32) for detecting the temperature of the external fluid;
    A bracket (41) interposed between the temperature detection device (32) and the current blocking member (40);
    A hole (40a) penetrating in the direction of passage of the external fluid in the heat exchanger (14) is formed in the current blocking member (40),
    The bracket (41) passes through the hole (40a);
    Of the bracket (41), the extending portion (41b) to which the temperature detecting device (32) is fixed, and of the bracket (41), the fixing portion (41a) fixed to the current blocking member (40). ) Are located on opposite sides of the current blocking member (40).
  2. 　前記ブラケット（４１）のうち前記遮流部材（４０）よりも前記温度検出装置（３２）側に位置している延出部（４１ｂ）の下端は、前記孔（４０ａ）に対して水平以下の位置に配置されている請求項１に記載の熱交換器ユニット。 The lower end of the extension part (41b) located on the temperature detection device (32) side of the current blocking member (40) in the bracket (41) is below horizontal with respect to the hole (40a). The heat exchanger unit according to claim 1 arranged at a position.
  3. 　前記ブラケット（４１）のうち前記遮流部材（４０）に対して前記温度検出装置（３２）の反対側に位置している部位（４１ａ）は、前記孔（４０ａ）を塞ぐ形状になっている請求項１または２に記載の熱交換器ユニット。 The part (41a) located on the opposite side of the temperature detection device (32) with respect to the current blocking member (40) in the bracket (41) has a shape for closing the hole (40a). The heat exchanger unit according to claim 1 or 2.
  4. 　前記ブラケット（４１）は、前記遮流部材（４０）のうち、前記孔（４０ａ）の前記温度検出装置（３２）側の縁部を形成する部位に当接している請求項３に記載の熱交換器ユニット。 The said bracket (41) is contact | abutted in the site | part which forms the edge part by the side of the said temperature detection apparatus (32) of the said hole (40a) among the said current-shielding members (40). Exchange unit.
  5. 　前記ブラケット（４１）は、前記温度検出装置（３２）と前記熱交換器（１４）との間に隙間を形成させるように屈曲した形状になっている請求項１ないし４のいずれか１つに記載の熱交換器ユニット。 The bracket (41) according to any one of claims 1 to 4, wherein the bracket (41) is bent to form a gap between the temperature detection device (32) and the heat exchanger (14). The heat exchanger unit described.
  6. 　前記温度検出装置（３２）に接続された電線（３３）を備え、
    　前記ブラケット（４１）は、前記電線（３３）を前記遮流部材（４０）との間に挟み込む形状になっている請求項１ないし５のいずれか１つに記載の熱交換器ユニット。     An electric wire (33) connected to the temperature detection device (32);
    The heat exchanger unit according to any one of claims 1 to 5, wherein the bracket (41) has a shape in which the electric wire (33) is sandwiched between the current shielding member (40).
  7. 　前記温度検出装置（３２）に接続された電線（３３）と、
    　前記電線（３３）が前記ブラケット（４１）からはみ出すことを防止するはみ出し防止部（４１ｄ）とを備える請求項１ないし５のいずれか１つに記載の熱交換器ユニット。     An electric wire (33) connected to the temperature detection device (32);
    The heat exchanger unit according to any one of claims 1 to 5, further comprising a protrusion preventing portion (41d) that prevents the electric wire (33) from protruding from the bracket (41).
  8. 　前記温度検出装置（３２）は、前記電線（３３）から離れた側の端部が、前記電線（３３）に近い側の端部に対して水平以下の位置に配置されている請求項７に記載の熱交換器ユニット。 The temperature detection device (32) is arranged such that an end portion on a side away from the electric wire (33) is located at a position below horizontal with respect to an end portion on a side close to the electric wire (33). The heat exchanger unit described.
  9. 　前記ブラケット（４１）の上部には、前記温度検出装置（３２）側に向かって突出した突起部が形成されており、
    　前記はみ出し防止部（４１ｄ）は前記突起部である請求項８に記載の熱交換器ユニット。     On the upper part of the bracket (41), a protrusion protruding toward the temperature detection device (32) is formed,
    The heat exchanger unit according to claim 8, wherein the protrusion prevention part (41d) is the protrusion.
  10. 　前記ブラケット（４１）の下部には、前記温度検出装置（３２）側に向かって突出した突起部が形成されており、
    　前記はみ出し防止部（４１ｄ）は前記突起部である請求項７に記載の熱交換器ユニット。     A protrusion projecting toward the temperature detection device (32) is formed at the bottom of the bracket (41).
    The heat exchanger unit according to claim 7, wherein the protrusion prevention part (41d) is the protrusion.
  11. 　前記温度検出装置（３２）は、前記熱交換器（１４）および前記遮流部材（４０）のうち少なくとも一方に対して離れて配置されている請求項１ないし１０のいずれか１つに記載の熱交換器ユニット。 The temperature detection device (32) according to any one of claims 1 to 10, wherein the temperature detection device (32) is arranged away from at least one of the heat exchanger (14) and the current blocking member (40). Heat exchanger unit.
  12. 　前記温度検出装置（３２）の先端は、前記延出部（４１ｂ）の一端部（４１ｆ）からはみ出しており、
    　前記温度検出装置（３２）の先端から前記延出部（４１ｂ）の一端部（４１ｆ）までの距離（ａ１）は、前記温度検出装置（３２）の先端から前記熱交換器（１４）および前記遮流部材（４０）のうち少なくとも一方までの距離（ｂ１）よりも小さくなっている請求項１１に記載の熱交換器ユニット。     The tip of the temperature detection device (32) protrudes from one end (41f) of the extension (41b),
    The distance (a1) from the tip of the temperature detector (32) to the one end (41f) of the extension (41b) is from the tip of the temperature detector (32) to the heat exchanger (14) and the The heat exchanger unit according to claim 11, wherein the heat exchanger unit is smaller than a distance (b1) to at least one of the flow shielding members (40).
PCT/JP2016/001956 2015-05-18 2016-04-08 Heat exchanger unit WO2016185658A1 (en)

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Publication number Priority date Publication date Assignee Title
EP3564636A3 (en) * 2018-04-11 2019-12-18 ChillServices GmbH Refrigerated furniture

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JPS5711439U (en) * 1980-06-23 1982-01-21
JPS6288232U (en) * 1985-11-20 1987-06-05
JPS6357533U (en) * 1986-10-02 1988-04-16
JPH0494530U (en) * 1990-12-28 1992-08-17
JPH09193650A (en) * 1996-01-19 1997-07-29 Denso Corp Sensor fitting structure
JP2009216291A (en) * 2008-03-10 2009-09-24 Mitsubishi Heavy Ind Ltd Transport refrigerating device

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Publication number Priority date Publication date Assignee Title
JPS5711439U (en) * 1980-06-23 1982-01-21
JPS6288232U (en) * 1985-11-20 1987-06-05
JPS6357533U (en) * 1986-10-02 1988-04-16
JPH0494530U (en) * 1990-12-28 1992-08-17
JPH09193650A (en) * 1996-01-19 1997-07-29 Denso Corp Sensor fitting structure
JP2009216291A (en) * 2008-03-10 2009-09-24 Mitsubishi Heavy Ind Ltd Transport refrigerating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564636A3 (en) * 2018-04-11 2019-12-18 ChillServices GmbH Refrigerated furniture

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