WO2013145965A1 - 車室内熱交換器及び車室内熱交換器のヘッダ間接続部材 - Google Patents
車室内熱交換器及び車室内熱交換器のヘッダ間接続部材 Download PDFInfo
- Publication number
- WO2013145965A1 WO2013145965A1 PCT/JP2013/054366 JP2013054366W WO2013145965A1 WO 2013145965 A1 WO2013145965 A1 WO 2013145965A1 JP 2013054366 W JP2013054366 W JP 2013054366W WO 2013145965 A1 WO2013145965 A1 WO 2013145965A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- vehicle interior
- refrigerant
- interior heat
- upstream
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0417—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures
-
- 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 devices
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00328—Heat exchangers for air-conditioning devices of the liquid-air type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05341—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
-
- 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
- F28F9/02—Header boxes; End plates
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
- F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
Definitions
- the present invention relates to a vehicle interior heat exchanger in a vehicle heat pump device and a member that connects and connects a pair of headers of the vehicle interior heat exchanger.
- the heat exchanger (functioning as a condenser or an evaporator) disclosed in Patent Document 1 communicates with the same end side of the upstream and downstream tube groups in which a plurality of refrigerant flow tubes are stacked.
- a part of the internal spaces of the pair of headers connected to each other are connected to each other via a connection member.
- the heat exchange efficiency with the blown air can be increased, and when used as a vehicle interior heat exchanger, The temperature of the air (heating air or cooling air) blown into the passenger compartment can be made uniform.
- the air inlet is shut off and hardly exchanges heat with air, and the refrigerant is circulated in a gas state.
- the method to make it conceivable In this method the cost can be reduced compared to a structure in which the refrigerant bypasses the vehicle interior heat exchanger during cooling.
- the present invention has been made paying attention to such a conventional problem, and even when a vehicle interior heat exchanger is used as described above, pressure loss can be suppressed and cooling performance can be maintained satisfactorily.
- the purpose is to do so.
- the vehicle interior heat exchanger of the vehicle air conditioner according to the present invention is arranged such that the upstream and downstream tube groups in which a plurality of refrigerant flow tubes are stacked are arranged in the air blowing direction of the vehicle interior air passage. And at least a part of the internal spaces of the pair of headers connected to and connected to the same end side of the refrigerant flow tubes of each tube group are connected to each other through a communication hole.
- the ratio of the total cross-sectional area of the communication holes communicating the internal spaces to the total cross-sectional area of the most upstream flow path of the upstream tube group is 38 to 93%. It is characterized by setting.
- connection member between headers of the vehicle interior heat exchanger includes a vehicle interior in which upstream and downstream tube groups in which a plurality of refrigerant flow tubes are stacked are arranged side by side in the air blowing direction of the vehicle interior air passage.
- the heat exchanger is connected between a pair of headers connected in communication with the same end side of the refrigerant flow tube of each tube group, and is connected by connecting at least some internal spaces of the pair of headers.
- a connecting member that protrudes from both sides of the flat surface of the plate-like connecting member has a plurality of boss portions that are connected through the pipe walls of the pair of headers, and the internal space is inside the boss portion. It has the communicating hole which connects each other.
- the ratio of the total cross-sectional area of the communication hole that communicates between the header inner spaces to the total cross-sectional area of the upstreammost flow path of the upstream tube group. Is set to be 38 to 93%, it is possible to sufficiently reduce the pressure loss of the refrigerant passing through the communication hole while suppressing an increase in processing cost and a decrease in strength, resulting in good cooling performance. Can be maintained.
- connection member between headers of the vehicle interior heat exchanger according to the present invention, a pair of headers can be easily connected via the connection member, and a plurality of communication lines formed on the inner side of the boss portion.
- the hole can sufficiently reduce the pressure loss of the refrigerant passing through the communication hole, and can maintain good performance during cooling.
- FIG. 4 is a sectional view taken along the line BB in FIG. 3.
- the C arrow side view of FIG. The bottom view of a pair of header arrange
- FIG. 4 is a sectional view taken along the line DD in FIG. 3.
- the outline perspective view which shows the flow of the refrigerant
- the diagram which shows the relationship between a counter hole cross-sectional area ratio and a pressure loss.
- the diagram which shows the relationship between a pressure loss and the COP ratio at the time of cooling.
- FIG.1 and FIG.2 shows the outline
- the refrigerant circuit to which the vehicle interior heat exchanger according to the present invention is applied is not limited to this.
- the air conditioner includes a compressor 1, a first vehicle interior heat exchanger 2 disposed on the downstream side of the air passage 51 in the vehicle interior, a vehicle exterior heat exchanger 3 disposed outside the vehicle interior, and an air passage in the vehicle interior.
- 51 includes a second vehicle interior heat exchanger 4 disposed on the upstream side of 51.
- a fan 52 is disposed at the upstream end of the air passage 51, and a damper 53 that can freely open and close the air vent is attached to the air vent of the first vehicle interior heat exchanger 2.
- a first expansion valve 6 and a first check valve 7 are provided in the middle of the first refrigerant pipe 5 from the refrigerant discharge port of the compressor 1 through the first vehicle interior heat exchanger 2 to the vehicle exterior heat exchanger 3.
- a first on-off valve 9 and an accumulator 10 are interposed in the middle of the second refrigerant pipe 8 from the vehicle exterior heat exchanger 3 to the refrigerant inlet of the compressor 1.
- a third refrigerant pipe 11 is connected from the downstream side of the first expansion valve 6 of the first refrigerant pipe 5 to connect the exterior heat exchanger 3 and the first on-off valve 9, and the third refrigerant pipe 11 is connected to the third refrigerant pipe 11.
- the second on-off valve 12 is interposed.
- the first expansion valve 6 is substantially closed because the passage resistance is larger than that of the second on-off valve 12, but may be forcibly closed. Therefore, the first expansion valve 6 and the second on-off valve 12 are selectively opened.
- a fifth refrigerant pipe 18 extending from the second vehicle interior heat exchanger 4 to the first on-off valve 9 and the accumulator 10 is connected.
- the fifth refrigerant pipe 18 includes a fourth on-off valve 19 and an internal heat exchanger.
- Sixteen low temperature parts 16B are interposed.
- the internal heat exchanger 16 exchanges heat between the high-temperature refrigerant that flows through the high-temperature part 16A and the low-temperature refrigerant that flows through the low-temperature part 16B.
- a sixth refrigerant pipe 20 is arranged from the upstream side of the first expansion valve 6 of the first refrigerant pipe 5 to the downstream side of the check valve 15 of the fourth refrigerant pipe 13, and the sixth refrigerant pipe 20 includes: A fifth on-off valve 21 is interposed.
- the high-temperature / high-pressure gas refrigerant pressurized by the compressor 1 flows into the first vehicle interior heat exchanger 2 and condenses by exchanging heat (dissipating heat) with the air blown from the fan 52. ⁇ Liquefied.
- the air is heated by this heat exchange.
- the heated air is blown into the passenger compartment to heat the passenger compartment.
- the liquid refrigerant is depressurized through the first expansion valve 6 to be in a gas-liquid mixed state, and flows into the vehicle exterior heat exchanger 3 through the first check valve 7.
- the refrigerant exchanges heat with the outside air (heat absorption) and is vaporized (gasified), and then is returned to the intake port of the compressor 1 through the first on-off valve 9 and the accumulator 10 and pressurized. Cycle is repeated.
- the second on-off valve 12, the third on-off valve 14, and the fourth on-off valve 19 are opened, and the damper 53, the first expansion valve 6, the first on-off valve 9, and the fifth on-off valve 21 are closed. Is done.
- the refrigerant pressurized by the compressor 1 flows through the first vehicle interior heat exchanger 2, but the damper 53 is closed and air flow to the first vehicle interior heat exchanger 2 is blocked. Therefore, heat exchange (cooling) with the blown air is hardly performed, and the refrigerant flows out in a high-temperature / high-pressure gas state and flows into the vehicle exterior heat exchanger 3 via the second on-off valve 12.
- the exterior heat exchanger 3 functions as a condenser, and heat exchange (heat radiation) with the outside air condenses and liquefies the gas refrigerant.
- the liquid refrigerant passes through the third opening / closing valve 14, the check valve 15, and the low temperature portion 16A of the internal heat exchanger 16, reaches the second expansion valve 17, and is decompressed by the second expansion valve 17 to be in a gas-liquid mixed state.
- the refrigerant is gasified by exchanging heat (absorbing heat) with the air blown from the fan 52. The air cooled by this heat exchange is blown into the vehicle interior to cool the vehicle interior.
- the air that has been cooled and condensed by the second vehicle interior heat exchanger 4 to reduce moisture is transferred to the downstream first vehicle interior. It can be reheated by the heat exchanger 2 and blown air having a low relative humidity into the passenger compartment.
- the refrigerant that is supplied to the second vehicle interior heat exchanger 4 is opened by opening the fifth on-off valve 21 interposed in the sixth refrigerant pipe 20. The flow rate may be increased.
- FIG. 3 is a front view of the second vehicle interior heat exchanger 2 as viewed from the downstream side in the air blowing direction
- FIG. 4 is a view taken in the direction of arrow A in FIG. 3
- FIG. 6 is a side view of FIG.
- a pair of tube groups 103A and 103B is formed by laminating a plurality of refrigerant flow tubes 101 having a flat passage section through corrugated fins 102 (only the upper part is shown in the figure), and the pair of tube groups 103A and 103B.
- Each refrigerant circulation tube 101 and corrugated fin 102 are fixed by brazing or the like.
- a pair of cylindrical headers extending in the stacking direction of the refrigerant flow tubes 11 are disposed on both sides in the tube axis direction of the two rows of tube groups 103A and 103B.
- the pair of headers 104A and 104B disposed on one axial side (the upper side in the drawing) of the refrigerant flow tube 101 are each one end (upper end) of the refrigerant flow tube 101 in each tube group.
- One end portion (the upper end portion in the figure) of the refrigerant flow tube 101 of each tube group 103A, 103B is inserted into a plurality of corresponding holes 104a in the headers 104A, 104B and fixed by brazing.
- headers 104A and 104B are closed by engaging the opening ends on both sides into a pair of cylindrical engaging portions 105a formed on an oblong lid member 105 as shown in FIG. Attached and fixed.
- a pair of headers 106A and 106B disposed on the other axial side of the refrigerant flow tube 101 are the other ends of the refrigerant flow tubes 101 of the tube groups 103A and 103B, respectively, like the headers 104A and 104B. It has a shape in which a plurality of holes 106a for inserting a portion (lower end portion in the figure) are opened. The other end portions (lower end portions) of the refrigerant flow tubes 101 of the tube groups 103A and 103B are inserted into the corresponding holes 106a of the headers 106A and 106B, and are fixed by brazing.
- the internal space of the headers 106A and 106B is partitioned into a plurality (two in this embodiment) by a disk-shaped partition member 106b at the intermediate portion in the axial direction.
- the partition member 106b is fixed by brazing to the inner walls of the pair of headers 106A and 106B.
- boss through-holes 106c are formed on the opposing inner walls in one (right side in the figure) of the header 106A, 106B partitioned by the partition member 106b.
- connecting members 107 are formed on both sides of the flat portion of the plate-like member by protruding bosses 107a having communication holes 107b on the inside, as shown in FIG.
- the boss portion 107a of the connection member 107 is passed through the boss through holes 106c of the headers 106A and 106B, and is fixed by brazing.
- the boss portion 107a of the connecting plate 107 is formed by a pair of burrings so as to protrude from one surface of one plate material, and these are overlapped in the opposite direction. It can be formed by fixing by attaching or the like.
- processing is performed by a known method in which the burring is performed from the opposite direction to project to the opposite side. You can also.
- the opening end of one of the headers 106A and 106B in the axial direction (the right side in the drawing) is fitted and sealed in a pair of cylindrical engaging portions of the lid member 108 formed in the same manner as the lid member 105 shown in FIG. It is fixed.
- the opening ends of the headers 106A and 106B on the other side in the axial direction engage with a pair of cylindrical engaging portions 109a formed in the adapter 109 that opens in the axial direction.
- the pair of cylindrical engaging portions 109b on the opposite side of the header 109A, 106B of the adapter 109 has a refrigerant inflow pipe 110 on one side (for example, downstream in the blowing direction) and a refrigerant outflow pipe on the other side (upstream in the blowing direction). 111 is engaged and fixed by brazing.
- the reinforcing plates 112 are brazed and fixed to both ends in the stacking direction of the tube groups 103A, 103B, 106A, 106B.
- the flow of the refrigerant in the first vehicle interior heat exchanger 2 formed as described above is as shown by the arrow in FIG.
- the refrigerant flows into the lower header 106A from the refrigerant inflow pipe 110 and flows in from the lower end openings of the plurality of refrigerant flow tubes 101 (first tube group 103Au) facing the first header space 106Au on the near side from the partition plate 106b. Then, the first tube group 103Au flows upward.
- the tube group 103Ad flows downward.
- the refrigerant flows in from the lower end openings of the plurality of refrigerant flow tubes 101 (third tube group 103Bu) facing the third header inner space 106Bu, and flows upward in the third tube group 103Bu. Further, after flowing into the header 104B from the upper end opening of the third tube group 103Bu, the fourth tube group 103Bd is inserted from the upper end openings of the plurality of refrigerant flow tubes 101 (fourth tube group 103Bd) on the front side (the left side in the figure). Flows downward.
- FIG. 1 When the vehicle interior heat exchanger 2 functions as a condenser during heating, the refrigerant contacts the outer surfaces of the tubes 101 while passing through the refrigerant flow tubes 101 of the two tube groups 103A and 103B as described above. In addition, heat is exchanged with the blasted air that circulates and is dissipated, and heat is exchanged with the corrugated fins 102 that are also cooled by the blast air that is in contact with the outer surface. Is done.
- the difference in the refrigerant temperature (or gas-liquid ratio) flowing through the tube groups 13A and 13B on the downstream side and the upstream side in the air blowing direction decreases toward the opposite side (back side). That is, in the entire area of the cross section of the air passage, the average value (average temperature or average gas-liquid) of the refrigerant temperature (gas-liquid ratio) of the downstream tube group 103A in the blowing direction and the refrigerant temperature (gas-liquid ratio) of the upstream tube group 13B. Ratio) is made uniform. Thereby, the temperature of the heating air blown into the vehicle interior while exchanging heat through the first vehicle interior heat exchanger 2 can be made uniform, and comfortable heating can be performed.
- the damper 53 is closed and the air flow to the first vehicle interior heat exchanger 2 is shut off, and the heat exchange (cooling) with the blown air is not substantially performed. Then, the refrigerant is allowed to flow out in a high temperature / high pressure gas state. This is to suppress reheating of the air cooled by the second vehicle interior heat exchanger 4 due to heat exchange with the first vehicle interior heat exchanger 2 and bypass the refrigerant in the first vehicle interior heat exchanger 2.
- the bypass valve and the bypass passage can be omitted, and the cost can be reduced.
- FIG. 14 shows the ratio of the total cross-sectional area of the counter hole (communication hole 107b of the connecting member 107) to the total cross-sectional area of the most upstream channel (tube group 103Au) and the pressure loss. Show the relationship.
- the pressure loss during the flow of the high-pressure refrigerant during cooling is a large value where the counter hole cross-sectional area ratio is small, but has a characteristic of greatly decreasing as the counter hole cross-sectional area ratio increases.
- the COP ratio (cooling capacity / power consumption) indicating the cooling performance at the time of cooling decreases as the pressure loss increases. It became clear that it remained almost constant. Specifically, the counter hole cross-sectional area ratio at which the pressure loss (approximately 0.60 [MPa]) begins to maintain the COP ratio approximately constant was approximately 38%.
- the pressure loss at the time of refrigerant condensation during heating is extremely low compared with the flow of the high-pressure gas refrigerant during cooling, even when the counter hole cross-sectional area ratio is small.
- the characteristic gradually decreases with increase.
- the connecting member 107 formed as described above the second header space 106Ad and the third header space 106Bu can be easily communicated and connected, and the strength of the counter member is ensured.
- the hole cross-sectional area ratio can be achieved and good cooling performance can be maintained.
- the total cross-sectional area of the tube group 103Au on the most upstream side is made larger than the cross-sectional area of the inlet pipe 110.
- the header is partitioned by a partition plate, and the flow of the refrigerant is changed so that the upstream side tube group 103A has two paths and the downstream side tube group 103B has two paths.
- the inside of the header may not be partitioned, but two paths of the entire upstream tube group and the entire downstream tube group may be used, and conversely, more channels can be set by setting the number of partitions to be increased. It is good also as a structure which has a path
- corrugated fins 102 instead of the corrugated fins 102, a configuration in which a large number of flat fins that penetrate each refrigerant circulation tube are arranged in the vertical direction may be employed.
- SYMBOLS 1 Compressor, 2 ... 1st vehicle interior heat exchanger, 4 ... 2nd vehicle interior heat exchanger, 5 ... 1st refrigerant
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
図1及び図2は、本発明に係る車室内熱交換器を備えたヒートポンプ式の車両用空調装置における冷媒回路の概要を示す。なお、本発明に係る車室内熱交換器が適用される冷媒回路は、これに限らない。
コンプレッサ1の冷媒吐出口から第1車室内熱交換器2を経て車室外熱交換器3に至る第1冷媒配管5の途中には、第1膨張弁6及び第1逆止弁7が介装されている。車室外熱交換器3からコンプレッサ1の冷媒吸入口に至る第2冷媒配管8の途中には、第1開閉弁9及びアキュームレータ10が介装されている。
暖房時には、ダンパ53、第1膨張弁6及び第1開閉弁9が開とされ、第2開閉弁12、第3開閉弁14、第4開閉弁19及び第5開閉弁21が閉とされる。
図2に示すように、コンプレッサ1で加圧された冷媒は、第1車室内熱交換器2を流通するが、ダンパ53が閉とされて第1車室内熱交換器2への送風が遮断されているため、送風空気との熱交換(冷却)が殆ど行われず、冷媒は高温・高圧のガス状態のまま流出し、第2開閉弁12を介して車室外熱交換器3に流入する。
図3は、第2車室内熱交換器2を空気の送風方向下流側からみた正面図、図4は、図3のA矢視図、図5は、図3のB-B矢視断面図、図6は、図3のC矢視側面図である。
そして、図10(A),(B)に示すように、板状部材の平坦部両側に、連通孔107bを内側に有するボス部107aを突出させた接続部材107を形成し、図11に示すように、該接続部材107のボス部107aをヘッダ106A,106Bのボス貫通孔106cに貫通させてろう付けして固定する。
以上のように形成された第1車室内熱交換器2の冷媒の流れは、図13の矢印に示すようになる。
次いで、第2ヘッダ空間106Ad内に臨む接続部材7のボス部107a内の連通孔107bを通って、隣接するヘッダ106Bの仕切り板106bより奥側の第3ヘッダ空間106Buに流入する。
さらに、第3チューブ群103Buの上端開口からヘッダ104B内に流入した後、手前側(図示左側)の複数の冷媒流通チューブ101(第4チューブ群103Bd)の上端開口から、第4チューブ群103Bdを下方に流動する。
暖房時に車室内熱交換器2がコンデンサとして機能する際は、冷媒は、上記のように2つのチューブ群103A,103Bの各冷媒流通チューブ101を通る間に、これら各チューブ101の外表面に接触しつつ流通する送風空気と熱交換して放熱されると共に、同じく外表面に接触する送風空気によって冷却されるコルゲートフィン102と熱交換して放熱されることにより、効率よく冷却されて凝縮・液化される。
即ち、送風路断面の全領域において、送風方向下流側チューブ群103Aの冷媒温度(気液割合)と上流側チューブ群13Bの冷媒温度(気液割合)との平均値(平均温度又は平均気液割合)が均一化される。これにより、第1車室内熱交換器2を通過して熱交換しつつ車室内へ送風される暖房空気の温度が均一化され、快適な暖房を行うことができる。
本出願人は、ガス冷媒が上流側ヘッダから下流側ヘッダに至るカウンター孔(接続部材107の連通孔107b)での圧力損失が冷房性能に大きく影響することに着目し、実験ないしシミュレーションによって、以下の結果を得た。
以上の結果に基づく考察により、カウンター孔断面積割合[=(連通孔107bの総断面積)/(チューブ群103Auの総断面積)]を、38%~93%の範囲に設定することとした。
第3ヘッダ空間106Bu
Claims (6)
- 複数の冷媒流通チューブを積層した上流側及び下流側のチューブ群が車室内送風路の送風方向に並べて配設され、前記各チューブ群の前記冷媒流通チューブの同一端側に連通して接続した一対のヘッダの少なくとも一部の内部空間同士が、連通孔を介して連通して接続された車両用空調装置の車室内熱交換器であって、
前記内部空間同士を連通する連通孔の総断面積を、前記上流側チューブ群の最上流側流路の総断面積に対する割合が38~93%となるように設定したことを特徴とする車室内熱交換器。 - 暖房時にコンデンサとして機能し、冷房時には前記送風路内での送風を遮断され、コンプレッサからの冷媒をガス状態で流通して車室外側のコンデンサに供給することを特徴とする請求項1に記載の車室内熱交換器。
- 前記上流側チューブ群の上流端における各冷媒チューブの総断面積を、前記上流側チューブ群の上流端に接続されたヘッダの入口部に接続される入口管の断面積より大きくしたことを特徴とする請求項1に記載の車室内熱交換器。
- 板状の接続部材にその平坦面両側から突出して形成した複数のボス部を、前記一対の中間ヘッダの管壁を貫通して接続することにより、前記ボス部の内側に形成された複数の連通孔を介して前記中間ヘッダ同士を連通したことを特徴とする請求項1に記載の車室内熱交換器。
- 前記ボス部の外径が隣接する前記冷媒流通チューブ相互の間隔より小さく、ボス部が前記冷媒流通チューブ相互間に配設されることを特徴とする請求項4に記載の車室内熱交換器。
- 複数の冷媒流通チューブを積層した上流側及び下流側のチューブ群が車室内送風路の送風方向に並べて配設された車室内熱交換器の、前記各チューブ群の前記冷媒流通チューブの同一端側に連通して接続された一対のヘッダ間に接続され、前記一対のヘッダの少なくとも一部の内部空間同士を連通して接続する接続部材であって、
板状の接続部材の平坦面両側から突出し、前記一対のヘッダの管壁を貫通して接続される複数のボス部を有し、前記ボス部の内側に前記内部空間同士を連通する連通孔を有することを特徴とする車室内熱交換器のヘッダ間接続部材。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/386,901 US9797656B2 (en) | 2012-03-27 | 2013-02-21 | Vehicle interior heat exchanger and inter-header connecting member of vehicle interior heat exchanger |
| DE112013001706.7T DE112013001706T5 (de) | 2012-03-27 | 2013-02-21 | Fahrzeuginterner Wärmetauscher und die Sammler verbindendes Element eines fahrzeuginternen Wärmetauschers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-070770 | 2012-03-27 | ||
| JP2012070770A JP5875918B2 (ja) | 2012-03-27 | 2012-03-27 | 車室内熱交換器及び車室内熱交換器のヘッダ間接続部材 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013145965A1 true WO2013145965A1 (ja) | 2013-10-03 |
Family
ID=49259245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2013/054366 Ceased WO2013145965A1 (ja) | 2012-03-27 | 2013-02-21 | 車室内熱交換器及び車室内熱交換器のヘッダ間接続部材 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9797656B2 (ja) |
| JP (1) | JP5875918B2 (ja) |
| DE (1) | DE112013001706T5 (ja) |
| WO (1) | WO2013145965A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160138871A1 (en) * | 2013-05-24 | 2016-05-19 | Sanden Holdings Corporation | Duplex heat exchanger |
| US20170030650A1 (en) * | 2015-07-31 | 2017-02-02 | Lg Electronics Inc. | Heat exchanger |
| CN111771097A (zh) * | 2018-03-23 | 2020-10-13 | 三电汽车空调系统株式会社 | 热交换器 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015210231A1 (de) * | 2015-06-03 | 2016-12-08 | Bayerische Motoren Werke Aktiengesellschaft | Wärmetauscher für ein Kühlsystem, Kühlsystem sowie Baugruppe |
| KR20170031556A (ko) * | 2015-09-11 | 2017-03-21 | 엘지전자 주식회사 | 마이크로 채널 타입 열교환기 |
| CN107310345B (zh) * | 2017-07-17 | 2023-06-30 | 珠海格力电器股份有限公司 | 一种汽车空调系统及其控制装置和方法 |
| KR102676732B1 (ko) * | 2018-12-11 | 2024-06-19 | 현대자동차주식회사 | 전기차용 열관리 시스템 |
| TWI677659B (zh) * | 2019-01-16 | 2019-11-21 | 萬在工業股份有限公司 | 並聯式冷凝裝置 |
| US12247792B2 (en) * | 2019-06-03 | 2025-03-11 | Hangzhou Sanhua Research Institute Co., Ltd. | Heat exchanger |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01160276U (ja) * | 1988-04-27 | 1989-11-07 | ||
| JPH06159863A (ja) * | 1992-11-18 | 1994-06-07 | Showa Alum Corp | 凝縮器 |
| JPH11142087A (ja) * | 1997-11-13 | 1999-05-28 | Showa Alum Corp | 熱交換器 |
| JP2001074388A (ja) * | 1999-07-02 | 2001-03-23 | Denso Corp | 冷媒蒸発器 |
| JP2003021490A (ja) * | 2001-05-01 | 2003-01-24 | Nikkei Nekko Kk | 受液器付き熱交換器及びその製造方法 |
| JP2003106793A (ja) * | 2001-09-28 | 2003-04-09 | Zexel Valeo Climate Control Corp | 熱交換器 |
| JP2005043041A (ja) * | 2003-07-08 | 2005-02-17 | Showa Denko Kk | 熱交換器 |
| JP2007263421A (ja) * | 2006-03-28 | 2007-10-11 | Calsonic Kansei Corp | 熱交換器 |
| JP2010538239A (ja) * | 2007-09-03 | 2010-12-09 | ハラ クライメート コントロール コーポレーション | 蒸発器 |
| JP2011523023A (ja) * | 2008-06-10 | 2011-08-04 | ハラ クライメート コントロール コーポレーション | HFO1234yf冷媒及びチューブ−フィンタイプ蒸発器を使用する車両用空調システム |
| JP2012007821A (ja) * | 2010-06-25 | 2012-01-12 | Denso Corp | 熱交換器 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2745079B1 (fr) * | 1996-02-20 | 1998-04-10 | Valeo Thermique Moteur Sa | Echangeur de chaleur a boite a fluide brasee, en particulier pour vehicule automobile |
| DE60010377T2 (de) | 1999-07-02 | 2004-09-16 | Denso Corp., Kariya | Kältemittelverdampfer mit Kältemittelverteilung |
| US20040205966A1 (en) * | 2001-08-03 | 2004-10-21 | Shinjiroh Ohishi | Method of manufacturing turbine frame of vgs type turbo charger, turbine frame manufactured by the method, exhaust gas guide assembly of vgs type turbo charger using the turbine frame and vgs type turbo charger incorporating the exhaust gas guide assembly |
| AU2003269545B2 (en) * | 2002-12-31 | 2006-04-27 | Modine Korea, Llc | Evaporator |
| US20060213651A1 (en) * | 2003-07-08 | 2006-09-28 | Showa Denko K.K. | Heat exchanger |
| JP4761790B2 (ja) * | 2005-02-28 | 2011-08-31 | カルソニックカンセイ株式会社 | 蒸発器 |
| JP5046771B2 (ja) * | 2007-07-27 | 2012-10-10 | 三菱重工業株式会社 | 冷媒蒸発器 |
| DE112008003011B4 (de) * | 2007-11-09 | 2023-03-23 | Hanon Systems | Wärmetauscher |
| JP2011140291A (ja) * | 2010-01-11 | 2011-07-21 | Denso Corp | 車両用空調装置 |
-
2012
- 2012-03-27 JP JP2012070770A patent/JP5875918B2/ja active Active
-
2013
- 2013-02-21 WO PCT/JP2013/054366 patent/WO2013145965A1/ja not_active Ceased
- 2013-02-21 DE DE112013001706.7T patent/DE112013001706T5/de active Pending
- 2013-02-21 US US14/386,901 patent/US9797656B2/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01160276U (ja) * | 1988-04-27 | 1989-11-07 | ||
| JPH06159863A (ja) * | 1992-11-18 | 1994-06-07 | Showa Alum Corp | 凝縮器 |
| JPH11142087A (ja) * | 1997-11-13 | 1999-05-28 | Showa Alum Corp | 熱交換器 |
| JP2001074388A (ja) * | 1999-07-02 | 2001-03-23 | Denso Corp | 冷媒蒸発器 |
| JP2003021490A (ja) * | 2001-05-01 | 2003-01-24 | Nikkei Nekko Kk | 受液器付き熱交換器及びその製造方法 |
| JP2003106793A (ja) * | 2001-09-28 | 2003-04-09 | Zexel Valeo Climate Control Corp | 熱交換器 |
| JP2005043041A (ja) * | 2003-07-08 | 2005-02-17 | Showa Denko Kk | 熱交換器 |
| JP2007263421A (ja) * | 2006-03-28 | 2007-10-11 | Calsonic Kansei Corp | 熱交換器 |
| JP2010538239A (ja) * | 2007-09-03 | 2010-12-09 | ハラ クライメート コントロール コーポレーション | 蒸発器 |
| JP2011523023A (ja) * | 2008-06-10 | 2011-08-04 | ハラ クライメート コントロール コーポレーション | HFO1234yf冷媒及びチューブ−フィンタイプ蒸発器を使用する車両用空調システム |
| JP2012007821A (ja) * | 2010-06-25 | 2012-01-12 | Denso Corp | 熱交換器 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160138871A1 (en) * | 2013-05-24 | 2016-05-19 | Sanden Holdings Corporation | Duplex heat exchanger |
| US20170030650A1 (en) * | 2015-07-31 | 2017-02-02 | Lg Electronics Inc. | Heat exchanger |
| US10544990B2 (en) * | 2015-07-31 | 2020-01-28 | Lg Electronics Inc. | Heat exchanger |
| CN111771097A (zh) * | 2018-03-23 | 2020-10-13 | 三电汽车空调系统株式会社 | 热交换器 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150053376A1 (en) | 2015-02-26 |
| JP5875918B2 (ja) | 2016-03-02 |
| US9797656B2 (en) | 2017-10-24 |
| DE112013001706T5 (de) | 2014-12-11 |
| JP2013204825A (ja) | 2013-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5875918B2 (ja) | 車室内熱交換器及び車室内熱交換器のヘッダ間接続部材 | |
| JP6088905B2 (ja) | 複式熱交換器 | |
| US10041710B2 (en) | Heat exchanger and air conditioner | |
| TWI646288B (zh) | 一種空調系統及其換熱器 | |
| US20130048260A1 (en) | Vehicle Interior Heat Exchanger | |
| WO2015037240A1 (ja) | 熱交換器および空気調和機 | |
| WO2013151008A1 (ja) | 熱交換器及びそれを用いたヒートポンプシステム | |
| WO2007099868A1 (ja) | 熱交換器および一体型熱交換器 | |
| KR100765557B1 (ko) | 열교환기 | |
| KR20140143650A (ko) | 차량용 쿨링모듈 | |
| US7013952B2 (en) | Stack type heat exchanger | |
| JP6026956B2 (ja) | 室内熱交換器 | |
| JP2020100255A (ja) | 凝縮器、車両用空気調和装置 | |
| JP2006329511A (ja) | 熱交換器 | |
| KR20120067406A (ko) | 축냉 열교환기 | |
| JP2014118140A (ja) | 車両用クーリングモジュール | |
| JPWO2012153610A1 (ja) | 車両用空調装置 | |
| KR102161475B1 (ko) | 차량용 에어컨 시스템 | |
| JP4671732B2 (ja) | 車両用空調装置 | |
| JP2007040605A (ja) | 多段圧縮式冷凍サイクル装置用熱交換器 | |
| JP6974062B2 (ja) | 熱交換器 | |
| JP2005300021A (ja) | 熱交換器 | |
| JP2025059318A (ja) | 熱交換器ユニット、空調室内機、および冷凍サイクル装置 | |
| KR20060104121A (ko) | 자동차용 공조케이스의 리브구조 | |
| WO2015098696A1 (ja) | 熱交換器 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13767633 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 14386901 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1120130017067 Country of ref document: DE Ref document number: 112013001706 Country of ref document: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 13767633 Country of ref document: EP Kind code of ref document: A1 |