WO2024005335A1 - 열교환기 - Google Patents
열교환기 Download PDFInfo
- Publication number
- WO2024005335A1 WO2024005335A1 PCT/KR2023/005867 KR2023005867W WO2024005335A1 WO 2024005335 A1 WO2024005335 A1 WO 2024005335A1 KR 2023005867 W KR2023005867 W KR 2023005867W WO 2024005335 A1 WO2024005335 A1 WO 2024005335A1
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- WO
- WIPO (PCT)
- Prior art keywords
- bypass valve
- receiver
- heat exchanger
- side bypass
- refrigerant
- 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.)
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- 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
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- 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
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- 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
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- 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
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- 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
- F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
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- 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
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- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
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- 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
- F28F9/0207—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions the longitudinal or transversal partitions being separate elements attached to header boxes
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- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/044—Condensers with an integrated receiver
- F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
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- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/044—Condensers with an integrated receiver
- F25B2339/0444—Condensers with an integrated receiver where the flow of refrigerant through the condenser receiver is split into two or more flows, each flow following a different path through the condenser receiver
-
- 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
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/007—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/06—Derivation channels, e.g. bypass
Definitions
- the present invention relates to a heat exchanger, and to a heat exchanger that takes cooling and heating performance into consideration by introducing variable passes to solve the problem that cooling performance and heating performance are formed differently depending on the number of passes.
- heat exchangers such as radiators, intercoolers, evaporators, and condensers to cool each part of the vehicle such as the engine or to control the air temperature inside the vehicle.
- heat exchangers generally have a heat exchange medium distributed inside them, and cooling or heat dissipation is achieved by heat exchange between the heat exchange medium inside the heat exchanger and the air outside the heat exchanger.
- a typical refrigeration cycle essentially includes a condenser and evaporator.
- the condenser is a heat exchanger responsible for condensation in the main refrigeration cycle of a vehicle air conditioning system, and serves to condense high-temperature, high-pressure gaseous refrigerant into a liquid state.
- the evaporator is a heat exchanger responsible for evaporation, and unlike the condenser, it evaporates liquid refrigerant into gaseous state. In a general cooling mode, the condenser releases condensation heat generated as the refrigerant condenses inside to the outside, while the evaporator absorbs evaporation heat from the outside as the refrigerant evaporates inside.
- Cooling is achieved by blowing the air around the evaporator into the room, taking advantage of the fact that the air around the evaporator loses heat and is cooled.
- a heat pump method that blows the air around the condenser into the room by applying the method described above in reverse is used. Since the cooling mode and heating mode are practically based on the same principle, the system is designed so that the flow direction of the refrigerant is variable, and one heat exchanger operates as an evaporator in the cooling mode and as a condenser in the heating mode, thereby providing cooling and heating with a single heat exchanger. Systems that allow both to be performed are also widely used.
- such a heat exchanger is generally formed in a form that includes a plurality of tubes arranged in parallel with each other through which refrigerant flows, and a pair of header tanks provided at both ends of the tube row composed of the tubes.
- the simplest and easiest form of refrigerant flow in this heat exchanger is a single path in which the refrigerant flowing into one header tank exchanges heat while passing through the entire tube row and is then discharged through another header tank.
- the refrigerant flow in the heat exchanger also basically adopts this single path.
- the pressure drop varies depending on the length of the refrigerant passage in the heat exchanger, there are various problems such as the refrigerant flow rate being not uniformly distributed.
- Figure 1 shows the refrigerant flow of a 4-pass heat exchanger
- Figure 2 shows the refrigerant flow of a 2-pass heat exchanger
- All of the 4-pass/2-pass heat exchangers 40 and 20 shown in FIGS. 1 and 2 respectively include a plurality of tubes 41 and 21 arranged in parallel with each other through which refrigerant flows, and the tubes 41 and 21 respectively.
- ) includes a pair of header tanks (42) (22) provided at both ends of a tube row consisting of.
- the heat exchanger in FIGS. 1 and 2 is basically a heat exchanger used as a condenser, and a receiver dryer (10) is connected to one header tank (42) (22).
- the header tank (42) (22) is provided with inlets (43) (23) and outlets (44) (24) through which refrigerant flows in and out. Additionally, in order to create a desired refrigerant flow direction, baffles 45 and 25 are provided at appropriate positions within the header tanks 41 and 21.
- the refrigerant flow in the 4-pass heat exchanger 40 will be described in detail as follows.
- the refrigerant flowing into the inlet 43 sequentially flows in a L-shape along passes (1), (2), and (3) and is gradually condensed.
- the refrigerant that has passed the (3) pass enters the receiver dryer (10) to undergo gas-liquid separation, and the liquid refrigerant separated in the receiver dryer (10) flows back into the (4) pass of the 4-pass heat exchanger (40).
- the refrigerant that has been subcooled while passing through the pass is finally discharged through the outlet (44).
- the refrigerant flow in the two-pass heat exchanger 20 will be described in detail as follows.
- the refrigerant flowing into the inlet 23 is condensed as it passes through pass (1), as shown.
- the refrigerant that has passed the (1) pass enters the receiver dryer (10) to undergo gas-liquid separation, and the liquid refrigerant separated in the receiver dryer (10) flows back into the (2) pass of the 2-pass heat exchanger (20).
- the refrigerant that has been subcooled while passing through the pass is finally discharged through the outlet (24).
- the 4-pass heat exchanger (40) (20) of FIGS. 1 and 2 operates as a condenser in cooling mode
- the 4-pass heat exchanger (40) has excellent heat transfer performance, solving the system high pressure problem and compressor It has the advantage of improving system COP (coefficient of performance) by reducing power consumption.
- the two-pass heat exchanger 20 has a relatively simple flow path structure, so heat transfer performance is relatively low and there is a problem in that system high pressure problems occur.
- compressor power consumption increases due to high system pressure, resulting in lower system COP. More specifically, it is known that in the cooling mode, the 2-pass heat exchanger 20 generates a high pressure of about 4 bar or more and the COP decreases by about 8% compared to the 4-pass heat exchanger 40.
- the two-pass heat exchanger 20 has a small refrigerant flow resistance due to its simple flow path structure, and therefore has a relatively large refrigerant flow rate, thereby improving heating performance. More specifically, it is known that in the heating mode, the 2-pass heat exchanger (20) has a refrigerant flow rate of 4 to 14 kg/hr higher than the 4-pass heat exchanger (40), and the heating discharge temperature is superior by about 1 to 3 degrees. .
- Patent Document 1 Korean Patent Registration No. 2103951 (“Refrigerator”, 2020.04.17.)
- the present invention was created to solve the problems of the prior art as described above, and the purpose of the present invention is to introduce a variable pass to solve the problem that cooling performance and heating performance are formed differently depending on the number of passes.
- the aim is to provide a heat exchanger considering cooling and heating performance. More specifically, the purpose of the present invention is to provide a heat exchanger considering cooling and heating performance, which is designed to change the number of passes to optimize each performance in cooling mode and heating mode.
- the heat exchanger 100 considering the cooling and heating performance of the present invention to achieve the above-described object includes a plurality of tubes 110 arranged in parallel to form a core area through which refrigerant flows; A pair of header tanks provided at both ends of the tubes 110; A plurality of baffles provided in the header tank; It includes a plurality of passes sequentially arranged in the core area by the plurality of baffles, and a bypass valve on one or both sides of the pair of header tanks to selectively bypass some of the plurality of passes. may be connected.
- the heat exchanger 100 further includes a receiver dryer 200, and the bypass valve can be opened and closed depending on the temperature.
- the heat exchanger 100 is provided with one receiver-side bypass valve (160A) as the bypass valve, and when the receiver-side bypass valve (160A) is closed, the refrigerant passes through the receiver dryer (200). Otherwise, when the receiver side bypass valve (160A) is opened, the refrigerant may be formed to pass through the receiver dryer (200).
- the receiver side bypass valve (160A) may be provided on the upper side of the receiver dryer (200).
- the heat exchanger 100 is provided with two bypass valves, a receiver-side bypass valve (160A) and a distribution outlet-side bypass valve (160B), and the receiver-side bypass valve (160A) and the distribution outlet-side bypass valve (160A) are provided as bypass valves.
- the bypass valve (160B) is closed, the refrigerant does not pass through the receiver dryer (200), and when the receiver side bypass valve (160A) and the distribution outlet side bypass valve (160B) are opened, some of the refrigerant passes through the receiver dryer (200). And, the remaining part may be formed to pass through only part of the heat exchanger 100.
- the receiver-side bypass valve (160A) is provided on the upper side of the receiver dryer 200, and the distribution outlet-side bypass valve (160B) is provided between the inlet 130 and the outlet 140 formed in the header tank. It can be.
- the heat exchanger 100 includes first and second header tanks 121 and 122; An inlet 130 provided in the first header tank 121 through which refrigerant flows; An outlet 140 provided in the first header tank 121 through which refrigerant is discharged; A first baffle 151 provided at a position between the inlet 130 and the outlet 140 in the first header tank 121; a second baffle 152 provided at a position between the first baffle 151 and the outlet 140 in the second header tank 122; A third baffle 153 provided at a position between the second baffle 152 and the outlet 140 in the first header tank 121; a fourth baffle 154 provided at the same position as the third baffle 153 within the second header tank 122; It includes, wherein the area separated by the first baffle 151 forms the first path 1, and the area between the first baffle 151 and the second baffle 152 forms the second path 1.
- a path (2) is formed, and the area between the second baffle 152 and the third and fourth baffles 153 and 154 forms the third path (3), and the third and fourth baffles ( The area separated by 153)(154) forms the fourth pass (4), the inlet 130 is formed at a position communicating with the first pass (1), and the outlet 140 is formed at the It may be formed at a location that communicates with the fourth pass (4).
- the heat exchanger 100 is connected to one of the header tanks and receives the refrigerant that has passed through the first, second, and third passes (1) (2) (3), separates gas and liquid, and transfers the liquid refrigerant to the fourth pass.
- Receiver dryer (200) discharging through pass (4); It further includes, wherein the bypass valve is formed to open and close according to the refrigerant temperature, so that in the cooling mode, it is closed as the refrigerant is formed at a relatively high temperature, and in the heating mode, it is opened as the refrigerant is formed at a relatively low temperature. It can be.
- the heat exchanger 100 is provided with one receiver-side bypass valve (160A) as the bypass valve, or two receiver-side bypass valves (160A) and a distribution outlet-side bypass valve (160B) as the bypass valve.
- the receiver side bypass valve (160A) When the receiver side bypass valve (160A) is provided, the receiver side bypass port (141) provided in the second header tank (122); A receiver-side bypass circuit (142) connected to the receiver-side bypass valve (160A) to bypass the refrigerant when opened; It includes, when the distribution outlet side bypass valve (160B) is further provided, a distribution outlet side bypass port (131) provided in the first header tank (121); A distribution outlet side bypass circuit (132) connected to the distribution outlet side bypass valve (160B) to bypass the refrigerant when opened; It may further include.
- the heat exchanger 100 is provided with one receiver side bypass valve 160A as the bypass valve, and the receiver side bypass valve 160A is installed on the upper side of the receiver dryer 200.
- the receiver side bypass valve (160A) is opened, the refrigerant passing through the first pass (1) can be supplied to bypass the receiver dryer (200) and pass through the fourth pass (4).
- the heat exchanger 100 is formed at a position where the receiver side bypass port 141 communicates with the first path 1 on the second header tank 122, and the receiver side bypass port 142
- the receiver side bypass valve (160A) and the receiver dryer (200) can be connected.
- the heat exchanger 100 operates as a condenser in the cooling mode, and the receiver side bypass valve 160A is closed, so that the refrigerant flows through the first, second, third, and fourth passes (1).
- )(2)(3)(4) are all formed to pass through, and in the heating mode, the heat exchanger 100 operates as an evaporator, and the receiver side bypass valve 160A is opened to allow the refrigerant to flow into the second and third By bypassing the passes (2) (3) and passing through the receiver dryer (200), the refrigerant can be formed to pass only through the first and fourth passes (1) (4).
- the heat exchanger 100 is provided with two bypass valves, a receiver side bypass valve 160A and a distribution outlet side bypass valve 160B, and the receiver side bypass valve 160A is connected to the receiver. It is provided on the upper side of the dryer 200, and the distribution port side bypass valve 160B is provided between the inlet 130 and the outlet 140, and when the receiver side bypass valve 160A is opened, the first pass ( A portion of the refrigerant that has passed through 1) is bypassed to the receiver dryer 200 and passes through the fourth pass (4), and the remainder of the refrigerant that has passed through the first pass (1) when the distribution port side bypass valve (160B) is opened. A portion may be supplied to pass through the second pass (2) and be discharged through the distribution port side bypass valve (160B).
- the heat exchanger 100 is formed at a position where the distribution outlet side bypass port 131 communicates with the second path 2 on the first header tank 121, and the distribution outlet side bypass port 132 Connects the distribution port side bypass valve (160B) and the discharge port (140), and the receiver side bypass port (141) is formed at a position where it communicates with the first path (1) on the second header tank (122).
- the receiver side bypass circuit 142 can connect the receiver side bypass valve 160A and the receiver dryer 200.
- the heat exchanger 100 operates as a condenser in the cooling mode, and the receiver-side bypass valve 160A and the distribution port-side bypass valve 160B are closed, thereby allowing the refrigerant to flow into the first , 2, 3, and 4 passes (1) (2) (3) (4).
- the heat exchanger (100) operates as an evaporator
- the receiver side bypass valve (160A) operates as an evaporator.
- the distribution port side bypass valve (160B) may be opened so that the remaining part of the refrigerant is discharged immediately after passing through the first and second passes (1) and (2).
- the present invention by introducing a design that allows the number of passes in the heat exchanger to be varied as needed, there is a great effect of fundamentally solving the problem that cooling performance and heating performance are formed in conflict with each other depending on the number of passes.
- 4-pass/2-pass heat exchangers have been widely used in the past, and it is known that the 4-pass heat exchanger shows excellent performance when used as a condenser, and the 2-pass heat exchanger shows excellent performance when used as an evaporator.
- a bypass valve in one heat exchanger to vary the refrigerant path, it is possible to obtain all the advantages by operating as a 4-pass heat exchanger in cooling mode / as a 2-pass heat exchanger in heating mode.
- the refrigerant path is varied by detecting the refrigerant temperature using a thermal bypass valve, so that an optimized path for each cooling and heating mode is formed. Accordingly, the heat exchanger path can be easily changed without the use of separate electrical signals or power, and excellent performance can be achieved in both cooling and heating modes.
- 1 shows refrigerant flow in a 4-pass heat exchanger.
- Figure 2 shows refrigerant flow in a two-pass heat exchanger.
- Figure 3 shows a first embodiment of a heat exchanger of the present invention.
- Figure 4 shows the refrigerant flow of the first embodiment of the heat exchanger of the present invention in cooling mode.
- Figure 5 shows the refrigerant flow of the first embodiment of the heat exchanger of the present invention in heating mode.
- Figure 6 shows a second embodiment of the heat exchanger of the present invention.
- Figure 7 shows the refrigerant flow of the second embodiment of the heat exchanger of the present invention in cooling mode.
- Figure 8 shows the refrigerant flow of the second embodiment of the heat exchanger of the present invention in heating mode.
- Figure 9 shows the operating principle of the thermal valve.
- Figure 10 is a cross-sectional view of the bypass valve of the present invention.
- Figure 11 is an operational cross-sectional view of an embodiment of the bypass valve of the present invention.
- Distribution port side bypass 132 Distribution port side bypass
- 160A Receiver side bypass valve 160B: Distribution outlet side bypass valve
- main space part 164 sub space part
- sealing ring 172b snap ring
- cover part 175a sealing plate
- Valve plate 177a Fixed ring
- Figure 3 shows a first embodiment of the heat exchanger of the present invention
- Figure 6 shows a second embodiment of the heat exchanger of the present invention.
- the first and second embodiments differ in the location of the bypass valve, which will be explained later, and this will be explained in more detail later.
- the basic configuration of the heat exchanger 100 of the present invention will be described.
- the heat exchanger 100 of the present invention basically has a similar configuration to a 4-pass heat exchanger. That is, a plurality of tubes 110 are arranged in parallel to form a core area through which refrigerant flows, a pair of header tanks provided at both ends of the tubes 110, and a plurality of baffles provided within the header tank. and a plurality of paths sequentially arranged in the core area are formed by the plurality of baffles.
- the 4-pass heat exchanger has superior performance compared to the 2-pass heat exchanger when it operates as a condenser in cooling mode, but when it operates as an evaporator in heating mode, there is a problem of poor performance due to the complicated path.
- the heat exchanger 100 is operated as a 4-pass heat exchanger in the cooling mode, but uses a bypass valve to allow some of the refrigerant to flow in a simpler path in the heating mode, thereby reducing the conventional heat exchanger 100. Eliminates problems caused by path complexity in 4-pass heat exchangers.
- a bypass valve that selectively bypasses some of the plurality of paths is connected to one or both sides of the pair of header tanks.
- the heat exchanger 100 further includes a receiver dryer 200, and the bypass valve can be opened and closed according to temperature.
- the configuration of the heat exchanger 100 will be described in more detail as follows.
- One of the pair of header tanks is called the first header tank (121), and the other is called the second header tank (122).
- the first header tank 121 is provided with an inlet 130 through which refrigerant flows in and an outlet 140 through which refrigerant is discharged.
- first and third baffles 151 and 153 are provided in the first header tank 121
- second and fourth baffles 152 and 154 are provided in the second header tank 122.
- the 1st, 2nd, and 3rd baffles 151, 152, and 153 are provided at sequentially spaced apart positions to form the first, second, and third passes (1) (2) (3), and the third and fourth baffles ( 153)(154) are provided at the same location to form the fourth pass (4). That is, the core area is separated by the baffles and the first, second, third, and fourth passes (1) (2) (3) (4) are formed to be sequentially arranged.
- the receiver dryer 200 is connected to one of the header tanks and receives the refrigerant that has passed through the first, second, and third passes (1) (2) (3), separates gas and liquid, and flows the liquid refrigerant into the fourth pass (1) (2) (3). It is equipped to discharge to 4).
- the first baffle 151 is provided at a position between the inlet 130 and the outlet 140 in the first header tank 121, and the second baffle 152 is provided in the first header tank 121. It is provided at a position between the first baffle 151 and the outlet 140 within the second header tank 122.
- the third baffle 153 is provided at a position between the second baffle 152 and the outlet 140 within the first header tank 121, and the fourth baffle 154 is located within the second header tank 121. It is provided in the same position as the third baffle 153 within (122). Accordingly, the area separated by the first baffle 151 forms the first path 1, and the area between the first baffle 151 and the second baffle 152 forms the second path.
- the receiver dryer 200 connects the third pass (3) and the fourth pass (4) to each other, the refrigerant flows into the inlet 130 and then flows into the first, second, and third passes. It sequentially passes through the passes (1) (2) (3), the receiver dryer (200), and the fourth pass (4), so that it can be smoothly discharged through the outlet (140).
- bypass valve is used to allow the refrigerant to flow through the four passes as it is or to bypass it appropriately depending on the cooling and heating mode, thereby improving performance in each mode.
- the problem of insufficient refrigerant flow in heating mode is basically solved by simplifying the path using the bypass valve. Now, the difference in configuration of the bypass valve between the first and second embodiments will be described in more detail.
- one receiver-side bypass valve (160A) is provided as the bypass valve, and when the receiver-side bypass valve (160A) is closed, the refrigerant does not pass through the receiver dryer (200), and the receiver-side bypass valve When (160A) is opened, the refrigerant is formed to pass through the receiver dryer (200). At this time, considering the location of the path to be bypassed, etc., the receiver side bypass valve (160A) is provided on the upper side of the receiver dryer (200).
- two bypass valves a receiver-side bypass valve (160A) and a distribution outlet-side bypass valve (160B), are provided, and when the receiver-side bypass valve (160A) and the distribution outlet-side bypass valve (160B) are closed, the refrigerant
- the receiver-side bypass valve (160A) and the distribution outlet-side bypass valve (160B) are opened without passing through the receiver dryer (200)
- a portion of the refrigerant passes through the receiver dryer (200)
- the remaining portion passes through the heat exchanger. It is formed to pass through only part of (100).
- the flow of part of the refrigerant according to the opening and closing of the receiver side bypass valve (160A) is the same as in the first embodiment, but the flow of the remaining part of the refrigerant according to the opening and closing of the distribution outlet side bypass valve (160B) is the heat exchanger.
- Route simplification is realized by allowing only part of (100) to pass through.
- the receiver side bypass valve (160A) is provided on the upper side of the receiver dryer 200, and the distribution outlet side bypass valve (160B) is formed in the header tank. It is provided between the inlet 130 and the outlet 140.
- the bypass valve when the bypass valve is closed, the bypass valve supplies the refrigerant to pass through all of the first, second, third, and fourth passes (1) (2) (3) (4). . If the refrigerant is supplied only to the first pass (1), the refrigerant naturally passes through all of the first, 2, 3, and 4 passes (1) (2) (3) (4), so in this case, a 4-pass heat exchanger It can be said that it is operated as. Meanwhile, when the bypass valve is opened, in both embodiments, the bypass valve supplies the refrigerant through only two passes selected from the first, second, third, and fourth passes (1) (2) (3) (4). . What is different in each embodiment is the difference in which two passes are passed.
- the bypass valve itself may be one or two, and also due to considerations such as the existence of a physical distance between the bypass valve and the desired pass position, the bypass valve and a detour route are further included.
- the heat exchanger 100 is provided with one receiver-side bypass valve (160A) as the bypass valve, or two receiver-side bypass valves (160A) and distribution outlet-side bypass valves (160B) as the bypass valves.
- the receiver side bypass valve (160A) When the receiver side bypass valve (160A) is provided, the receiver side bypass port 141 provided in the second header tank 122 is connected to the receiver side bypass valve (160A) to bypass the refrigerant when opened.
- the distribution outlet side bypass port 131 provided in the first header tank 121, and the distribution outlet side bypass valve (160B)
- a distribution outlet side bypass 132 that is connected to the refrigerant when opened.
- the first embodiment is provided with one receiver-side bypass valve (160A), and the receiver-side bypass valve (160A) is provided on the upper side of the receiver dryer (200).
- the receiver side bypass valve 160A is opened, the refrigerant that has passed the first pass (1) is bypassed to the receiver dryer 200 and the fourth pass (4). It is supplied through.
- the receiver side bypass port 141 and the receiver side bypass circuit 142 are also provided in response to the receiver side bypass valve (160A). More specifically, the receiver side bypass port 141 is formed at a position in communication with the first path 1 on the second header tank 122, and the receiver side bypass port 142 is connected to the receiver side bypass port 141. It is formed to connect the valve 160A and the receiver dryer 200.
- FIG. 4 shows the refrigerant flow in the first embodiment of the heat exchanger of the present invention in cooling mode.
- the heat exchanger 100 of the present invention operates as a condenser in the cooling mode, and when the receiver side bypass valve 160A is closed, the refrigerant flows into the first, second, It is formed to pass through all 3 or 4 passes (1) (2) (3) (4). Therefore, as shown in FIG. 4, the refrigerant sequentially passes through the first, second, third, and fourth passes (1) (2) (3) (4). This is the same as the refrigerant flow of the 4-pass heat exchanger illustrated in Figure 1.
- the 4-pass heat exchanger has much better performance when operating as a condenser ("In cooling mode, the 2-pass heat exchanger 20 has a high pressure of about 4 bar or more compared to the 4-pass heat exchanger 40. formed, COP decreases by about 8%"). Therefore, in the cooling mode, the heat exchanger 100 forms the same refrigerant flow as a general 4-pass heat exchanger.
- FIG. 5 shows the refrigerant flow in the first embodiment of the heat exchanger of the present invention in heating mode.
- the heat exchanger 100 of the present invention operates as an evaporator in the heating mode, and the receiver side bypass valve 160A is opened to allow refrigerant to flow through the second and third passes ( By bypassing 2)(3) and passing through the receiver dryer 200, the refrigerant is formed to pass only through the first and fourth passes 1 and 4.
- the refrigerant that has passed through the first pass (1) flows to the open receiver side bypass valve (160A) instead of passing to the second pass (2), Accordingly, the refrigerant that has passed through the receiver dryer 200 is immediately discharged through the fourth pass (4).
- the refrigerant only passes through the first and fourth passes (1) and (4), and the heat exchanger 100 operates as if it were a two-pass heat exchanger.
- the 4-pass heat exchanger is operated as an evaporator, the heating performance deteriorates due to the low refrigerant flow rate due to the flow path complexity ("In the heating mode, the 2-pass heat exchanger (20) has a lower refrigerant compared to the 4-pass heat exchanger (40).
- the flow rate is high at 4 to 14 kg/hr, and the heating discharge temperature is about 1 to 3 degrees Celsius.”
- the path simplification is achieved by allowing the refrigerant to pass through only two passes in the heating mode, thereby achieving the advantages of the above-described two-pass heat exchanger.
- the receiver-side bypass valve (160A) is located on the upper side of the receiver dryer (200).
- the distribution port side bypass valve (160B) is provided between the inlet (130) and the outlet (140).
- the receiver side bypass valve (160A) is such that when the receiver side bypass valve (160A) is opened, a portion of the refrigerant that has passed through the first pass (1) is bypassed to the receiver dryer (200) and the fourth pass (4). ) is supplied through.
- the distribution outlet side bypass valve (160B) is such that when the distribution outlet side bypass valve (160B) is opened, the remaining part of the refrigerant that has passed through the first pass (1) passes through the second pass (2) and is connected to the distribution outlet side bypass valve ( It is supplied to be discharged through 160B).
- the receiver-side bypass port 141 is formed at a position communicating with the first path 1 on the second header tank 122, The receiver side bypass circuit 142 is formed to connect the receiver side bypass valve 160A and the receiver dryer 200.
- the distribution outlet side bypass port 131 is formed at a position in communication with the second path 2 on the first header tank 121, and the distribution outlet side bypass port 132 is connected to the distribution outlet side bypass valve 160B. and is formed to connect the outlet 140.
- FIG. 7 shows the refrigerant flow in the second embodiment of the heat exchanger of the present invention in cooling mode.
- the heat exchanger 100 of the present invention operates as a condenser in the cooling mode, and the receiver side bypass valve 160A and the distribution outlet side By closing the bypass valve 160B, the refrigerant is formed to pass through all of the first, second, third, and fourth passes (1) (2) (3) (4). Therefore, as shown in FIG. 7, the refrigerant sequentially passes through the first, second, third, and fourth passes (1) (2) (3) (4). This is the same as the refrigerant flow of the 4-pass heat exchanger illustrated in FIG. 1 (and the refrigerant flow in the first embodiment cooling mode illustrated in FIG. 4).
- FIG 8 shows the refrigerant flow in the second embodiment of the heat exchanger of the present invention in heating mode.
- the heat exchanger 100 of the present invention operates as an evaporator in the heating mode, and the receiver side bypass valve 160A is opened to allow a portion of the refrigerant to pass through the second and third passes.
- the receiver side bypass valve 160A is opened to allow a portion of the refrigerant to pass through the second and third passes.
- the second pass (2) is used more, but when looking at the actual flow of refrigerant, for each path, the refrigerant ends up passing through only two passes, which still simplifies the path. excellently realized.
- the second embodiment Compared to the first embodiment, in the second embodiment, a portion of the refrigerant passes only through the first and fourth passes (1) and (4) as in the first embodiment, but the remaining portion of the refrigerant passes through the first and second passes ( 1)(2) It can be seen that an additional route has been added to discharge immediately after passing. At this time, in the case of the first embodiment, the entire refrigerant that passed through the first pass (1) must be bypassed to the receiver dryer (200) through the receiver side bypass valve (160A), and the refrigerant is distributed through several tubes. In the process, there is a possibility that the refrigerant flowing through the tube below the receiver bypass valve (160A) may not enter the receiver bypass path, causing leakage in the path.
- the refrigerant that fails to enter the receiver side bypass path must inevitably pass through all remaining passes, which inevitably causes the performance degradation described above.
- the remaining refrigerant is collected and passes through the second pass (2) and is discharged through the distribution port side bypass valve (160B). can do. That is, in the case of the second embodiment, the refrigerant path is diversified to prevent refrigerant from leaking, but regardless of the path the refrigerant passes through, only two passes result in it being able to effectively eliminate factors causing performance degradation.
- the path changes as the bypass valve is opened or closed depending on the mode, forming an optimal path for each mode.
- an electronic circuit may be provided in the bypass valve to control opening and closing by applying a control signal.
- the bypass valve mechanically controls opening and closing according to the refrigerant temperature, thereby further improving system efficiency by eliminating the addition of unnecessary parts and control algorithms.
- FIG. 9 is a diagram for explaining the operating principle of the thermal valve.
- the thermal valve is provided with a piston surrounded by an elastic body within a housing, and the space between the housing and the elastic body is filled with expansion wax. Expanding wax changes phase into a liquid or solid phase depending on the temperature, but when the temperature is low, it exists in a solid phase and its volume decreases.
- the left diagram of FIG. 9 shows the state of the thermal valve in a low temperature state. Meanwhile, when the temperature environment rises to a high temperature, the expansion wax changes phase into a liquid phase and its volume increases.
- the thermal valve of FIG. 9 will operate by closing the passage hole at high temperature and opening the passage hole at low temperature.
- the thermal valve does not require any electronic circuits or control signals at all, and can control opening and closing solely on a purely mechanical operating principle using only the surrounding temperature environment.
- FIG. 10 shows a cross-sectional view of the bypass valve of the present invention.
- the bypass valve of the present invention shown in FIG. 10 can be opened and closed only by purely mechanical operating principles by applying the principle of the thermal valve illustrated in FIG. 9. That is, the bypass valve is formed to open and close according to the refrigerant temperature, so that in the cooling mode, it is closed as the refrigerant is formed at a relatively high temperature, and in the heating mode, it is formed to open as the refrigerant is formed at a relatively low temperature. .
- the configuration of the bypass valve will be described in detail through FIG. 10, and then the movement of each part during opening and closing will be described in more detail through FIG. 11.
- the bypass valve is connected to a path position as needed, such as the receiver side bypass port 141 or the distribution port side bypass port 131, and receives the refrigerant, but is shown in FIG. 10 so that the refrigerant can be divided and discharged as needed. As shown, it includes a first communication passage 161 and a second communication passage 162.
- the first communication path 161 is located in communication with the second header tank 122 or the first header tank 121, and more specifically, the receiver side bypass port 141 or the distribution port side bypass port 131. ), and the second communication path 162 is formed at a position connected to the receiver side right circuit 142 or the distribution port side right circuit 132.
- the bypass valve is closed in the cooling mode so that the refrigerant can pass through all of the first, second, third, and fourth passes (1) (2) (3) (4).
- the bypass valve is opened so that the refrigerant passes through only two selective passes and then is discharged. That is, the first communication passage 161 is always open, and the second communication passage 162 is formed to be opened and closed as needed.
- a main space 163 and a sub space 164 are formed in the bypass valve.
- the main space 163 communicates with the inlet 130 and the first communication passage 161, and also accommodates a valve unit that performs opening and closing operations.
- the subspace 164 is basically formed to communicate with the main space 163 and has a smaller cross-sectional area than the main space 163. That is, a step is formed at the connection portion between the main space 163 and the sub space 164 as shown in FIG. 10, and the valve portion is formed to open and close this portion. That is, the communication between the subspace 164 and the vane space 163 is opened or closed by the operation of the valve unit.
- the subspace portion 164 communicates with the second communication passage 162, the opening and closing of the second communication passage 162 is consequently controlled by the operation of the valve unit.
- the operating principle of the thermal valve previously described with reference to FIG. 9 is applied to the valve unit.
- the valve part basically includes a guide pin 171, a valve cap 172, a case 173, a cover part 175, an elastic part 174, a wax part 176, and a valve plate 177, as shown. It includes a main spring 178 and a sub spring 179 for smoother operation.
- the guide pin 171 extends in the extension direction of the main space 163 and is provided within the main space 163, and corresponds to the “piston” in FIG. 9. However, in the bypass valve of the present invention, the guide pin 171 itself is fixed without moving, so the name is different.
- the valve cap 172 fixes one side of the guide pin 171 to one side of the main space 163. It is preferable that a sealing ring 172a in the form of an O-ring is provided between the valve cap 172 and the inner wall of the main space 163 to prevent leakage. Additionally, it is preferable that a snap ring (172b) is provided on the top of the valve cap (172) to prevent the valve cap (172) from coming off.
- the case 173 is formed in the form of a container with one end open to accommodate the guide pin 171, and the inner wall is spaced apart from the outer surface of the guide pin 171. That is, the case 173 corresponds to the “housing” in FIG. 9. Meanwhile, as described above, the guide pin 171 corresponding to the “piston” in FIG. 9 is fixed to one side of the main space 163 by the valve cap 172. In the thermal valve of FIG. 9, the “housing” is fixed, so the “piston” moves relative to the “housing” according to temperature changes, but in the bypass valve of the present invention in FIG. 10, the guide pin 171 is fixed. Therefore, the case 173 moves relative to the guide pin 171 according to temperature changes.
- the case 173 is preferably made of a metal material that conducts heat well, for example, brass.
- the elastic portion 174 is provided to surround the guide pin 171 and corresponds to the “elastic body” in FIG. 9.
- the elastic portion 174 is preferably made of a material that changes elasticity easily so as to effectively press the guide pin 171, and is preferably made of, for example, rubber.
- the cover portion 175 is formed to be movable along the guide pin 171 and serves to seal the open end of the case 173.
- a structure is formed in which the upper part of the elastic part 174 is fitted inside the lower part of the cover part 175.
- a sealing plate 175a is provided between the cover part 175 and the elastic part 174 as shown. It is desirable to be
- the wax portion 176 is filled in the space between the elastic portion 174 and the case 173 and changes phase into a liquid or solid phase depending on temperature, and corresponds to the “expanded wax” in FIG. 9.
- the refrigerant flowing into the condenser in cooling mode is about 81 degrees or higher
- the refrigerant flowing into the evaporator in heating mode is about 64 degrees or lower.
- the wax portion 176 be made of a material that becomes liquid at temperatures above about 81 degrees and in solid at temperatures below about 64 degrees.
- the wax portion 176 is preferably a paraffin-based wax with a changeable characteristic temperature range of 45 degrees to 120 degrees.
- the valve plate 177 is provided on the other side of the case 173 and serves to open or close communication between the main space 163 and the sub space 164. At this time, so that the valve plate 177 can be firmly fixed to the case 173, it is preferable that a fixing ring 177a that is assembled by press-fitting is provided on the lower side of the valve plate 177.
- the main spring 177 is supported at both ends on one side of the valve plate 177 and the case 173, and serves to absorb excess expansion of the wax portion 176. Although it can operate as a thermal valve with just the structure from the guide pin 171 to the valve plate 177, the valve operation can be performed more stably by providing the main spring 177.
- the restoration spring 179 is supported at both ends on the other side of the valve plate 177 and the subspace portion 164, and serves to assist in restoring the case 173 to its original position. Even without the restoration spring 179, the position of the case 173 is restored as the wax part 176 changes to a solid state, but the valve operation is improved as the restoring force of the restoration spring 179 assists. This can be done more smoothly.
- Figure 11 shows an operational cross-sectional embodiment of the bypass valve of the present invention, where the upper side view of Figure 11 shows the cooling mode and the lower side view of Figure 11 shows the heating mode.
- Figure 11 shows an embodiment where the bypass valve is the distribution outlet side bypass valve 160B described above, so the first communication passage 161 is connected to the distribution outlet side bypass port 131, and the first communication passage 161 is connected to the distribution outlet side bypass port 131.
- the two-channel passage 162 is formed to be connected to the distribution port side bypass circuit 132.
- the distribution outlet side bypass 132 is connected to the outlet 140.
- the outlet side bypass valve 160B operates to close, and the valve plate 177 closes the second communication passage 162. Therefore, the path through which the refrigerant flows directly to the outlet 140 is blocked, and the refrigerant that has passed through the first and second passes (1) (2) flows back to the third and fourth passes (3) (4) as before. It flows.
- the heating mode that is, when the refrigerant is at a low temperature
- the outlet side bypass valve 160B operates to open, and the valve plate 177 opens the second communication passage 162. Therefore, the refrigerant that has passed through the first and second passes (1) (2) can flow directly to the outlet (140) through the bypass path (132) along the open second communication passage (162) and be discharged.
- the refrigerant does not flow through the third and fourth passes (3) and (4), making it possible to greatly simplify the flow path.
- an example is given as the distribution outlet side bypass valve (160B), but the receiver side bypass valve (160A) also operates in the same way, but only the device or path through which it passes as a result is different, so a detailed description is omitted.
- the 4-pass heat exchanger shows excellent performance when used as a condenser
- the 2-pass heat exchanger shows excellent performance when used as an evaporator.
- the refrigerant path is varied by detecting the refrigerant temperature using a thermal bypass valve, so that an optimized path for each cooling and heating mode is formed. Accordingly, the heat exchanger path can be easily changed without the use of separate electrical signals or power.
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Abstract
Description
Claims (15)
- 복수 개가 서로 병렬 배치되어 냉매가 유통되는 코어(core)영역을 형성하는 튜브; 상기 튜브들의 양단에 구비되는 한 쌍의 헤더탱크; 상기 헤더탱크 내에 구비되는 복수 개의 배플; 을 포함하며,상기 복수 개의 배플들에 의해 상기 코어영역에는 순차적으로 배치되는 복수 개의 패스가 형성되고,상기 한 쌍의 헤더탱크 중 일측 또는 양측에는 상기 복수 개의 패스 중 일부를 선택적으로 우회하는 우회밸브가 연통되는 것을 특징으로 하는 열교환기.
- 제 1항에 있어서, 상기 열교환기는,리시버드라이어를 더 포함하며,상기 우회밸브는 온도에 따라 개폐되는 것을 특징으로 하는 열교환기.
- 제 2항에 있어서, 상기 열교환기는,상기 우회밸브로서 리시버측우회밸브 1개가 구비되되,상기 리시버측우회밸브 폐쇄 시 냉매가 상기 리시버드라이어를 경유하지 않고,상기 리시버측우회밸브 개방 시 냉매가 상기 리시버드라이어를 경유하도록 형성되는 것을 특징으로 하는 열교환기.
- 제 3항에 있어서, 상기 리시버측우회밸브는,상기 리시버드라이어의 상측에 구비되는 것을 특징으로 하는 열교환기.
- 제 2항에 있어서, 상기 열교환기는,상기 우회밸브로서 리시버측우회밸브 및 유통구측우회밸브 2개가 구비되되,상기 리시버측우회밸브 및 상기 유통구측우회밸브 폐쇄 시 냉매가 상기 리시버드라이어를 경유하지 않고,상기 리시버측우회밸브 및 상기 유통구측우회밸브 개방 시 냉매 일부는 상기 리시버드라이어를 경유하고, 나머지 일부는 상기 열교환기의 일부만 경유하도록 형성되는 것을 특징으로 하는 열교환기.
- 제 5항에 있어서,상기 리시버측우회밸브는 상기 리시버드라이어의 상측에 구비되며,상기 유통구측우회밸브는 상기 헤더탱크에 형성되는 유입구 및 배출구 사이에 구비되는 것을 특징으로 하는 열교환기.
- 제 1항에 있어서, 상기 열교환기는,제1, 2헤더탱크;상기 제1헤더탱크에 구비되어 냉매가 유입되는 유입구;상기 제1헤더탱크에 구비되어 냉매가 배출되는 배출구;상기 제1헤더탱크 내에서 상기 유입구 및 상기 배출구 사이 위치에 구비되는 제1배플;상기 제2헤더탱크 내에서 상기 제1배플 및 상기 배출구 사이 위치에 구비되는 제2배플;상기 제1헤더탱크 내에서 상기 제2배플 및 상기 배출구 사이 위치에 구비되는 제3배플;상기 제2헤더탱크 내에서 상기 제3배플과 동일한 위치에 구비되는 제4배플;을 포함하며,상기 제1배플에 의해 분리되는 영역이 상기 제1패스를 형성하고,상기 제1배플 및 상기 제2배플 사이의 영역이 상기 제2패스를 형성하고,상기 제2배플 및 상기 제3, 4배플 사이의 영역이 상기 제3패스를 형성하고,상기 제3, 4배플에 의해 분리되는 영역이 상기 제4패스를 형성하고,상기 유입구는 상기 제1패스와 연통되는 위치에 형성되고,상기 배출구는 상기 제4패스와 연통되는 위치에 형성되는 것을 특징으로 하는 열교환기.
- 제 7항에 있어서, 상기 열교환기는,어느 하나의 상기 헤더탱크에 연결되어 상기 제1, 2, 3패스를 지나온 냉매를 유입받아 기액분리하여 액상냉매를 상기 제4패스로 배출하는 리시버드라이어;를 더 포함하며,상기 우회밸브는 냉매온도에 따라 개방 및 폐쇄가 이루어지도록 형성되어,냉방모드 시 냉매가 상대적으로 고온으로 형성됨에 따라 폐쇄되고,난방모드 시 냉매가 상대적으로 저온으로 형성됨에 따라 개방되는 것을 특징으로 하는 열교환기.
- 제 8항에 있어서, 상기 열교환기는,상기 우회밸브로서 리시버측우회밸브 1개가 구비되거나 또는 상기 우회밸브로서 리시버측우회밸브 및 유통구측우회밸브 2개가 구비되되,상기 리시버측우회밸브가 구비될 경우,상기 제2헤더탱크에 구비되는 리시버측우회구;상기 리시버측우회밸브에 연결되어 개방 시 냉매를 우회시키는 리시버측우회로;를 포함하고,상기 유통구측우회밸브가 더 구비될 경우,상기 제1헤더탱크에 구비되는 유통구측우회구;상기 유통구측우회밸브에 연결되어 개방 시 냉매를 우회시키는 유통구측우회로;를 더 포함하는 것을 특징으로 하는 열교환기.
- 제 9항에 있어서, 상기 열교환기는,상기 우회밸브로서 상기 리시버측우회밸브 1개가 구비되되,상기 리시버측우회밸브가 상기 리시버드라이어의 상측에 구비되어,상기 리시버측우회밸브 개방 시 상기 제1패스를 통과한 냉매가 상기 리시버드라이어로 우회하여 상기 제4패스를 통과하게 공급하는 것을 특징으로 하는 열교환기.
- 제 10항에 있어서, 상기 열교환기는,상기 리시버측우회구가 상기 제2헤더탱크 상의 상기 제1패스와 연통되는 위치에 형성되고,상기 리시버측우회로가 상기 리시버측우회밸브 및 상기 리시버드라이어를 연결하는 것을 특징으로 하는 열교환기.
- 제 11항에 있어서, 상기 열교환기는,냉방모드 시 상기 열교환기가 응축기로서 동작하며, 상기 리시버측우회밸브가 폐쇄됨으로써, 냉매가 상기 제1, 2, 3, 4패스를 모두 통과하도록 형성되고,난방모드 시 상기 열교환기가 증발기로서 동작하며, 상기 리시버측우회밸브가 개방되어 냉매가 상기 제2, 3패스를 우회하여 상기 리시버드라이어를 통과함으로써, 냉매가 상기 제1, 4패스만을 통과하도록 형성되는 것을 특징으로 하는 열교환기.
- 제 8항에 있어서, 상기 열교환기는,상기 우회밸브로서 리시버측우회밸브 및 유통구측우회밸브 2개가 구비되되,상기 리시버측우회밸브가 상기 리시버드라이어의 상측에 구비되고, 상기 유통구측우회밸브가 상기 유입구 및 상기 배출구 사이에 구비되어,상기 리시버측우회밸브 개방 시 상기 제1패스를 통과한 냉매 일부가 상기 리시버드라이어로 우회하여 상기 제4패스를 통과하고, 상기 유통구측우회밸브 개방 시 상기 제1패스를 통과한 냉매 나머지 일부가 상기 제2패스를 지나 상기 유통구측우회밸브를 통해 배출되게 공급하는 것을 특징으로 하는 열교환기.
- 제 13항에 있어서, 상기 열교환기는,상기 유통구측우회구가 상기 제1헤더탱크 상의 상기 제2패스와 연통되는 위치에 형성되고,상기 유통구측우회로가 상기 유통구측우회밸브 및 상기 배출구를 연결하고,상기 리시버측우회구가 상기 제2헤더탱크 상의 상기 제1패스와 연통되는 위치에 형성되고,상기 리시버측우회로가 상기 리시버측우회밸브 및 상기 리시버드라이어를 연결하는 것을 특징으로 하는 열교환기.
- 제 11항에 있어서, 상기 열교환기는,냉방모드 시 상기 열교환기가 응축기로서 동작하며, 상기 리시버측우회밸브 및 상기 유통구측우회밸브가 폐쇄됨으로써, 냉매가 상기 제1, 2, 3, 4패스를 모두 통과하도록 형성되고,난방모드 시 상기 열교환기가 증발기로서 동작하며,상기 리시버측우회밸브가 개방되어 냉매 일부가 상기 제2, 3패스를 우회하여 상기 리시버드라이어를 통과함으로써, 냉매 일부가 상기 제1, 4패스만을 통과하고,상기 유통구측우회밸브가 개방되어 냉매 나머지 일부가 상기 제1, 2패스 통과 후 바로 배출되도록 형성되는 것을 특징으로 하는 열교환기.
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| CN202380046929.5A CN119404064A (zh) | 2022-06-30 | 2023-04-28 | 热交换器 |
| US18/878,110 US20260029201A1 (en) | 2022-06-30 | 2023-04-28 | Heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220080586A KR20240003295A (ko) | 2022-06-30 | 2022-06-30 | 열교환기 |
| KR10-2022-0080586 | 2022-06-30 |
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| Country | Link |
|---|---|
| US (1) | US20260029201A1 (ko) |
| KR (1) | KR20240003295A (ko) |
| CN (1) | CN119404064A (ko) |
| WO (1) | WO2024005335A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07127948A (ja) * | 1992-11-02 | 1995-05-19 | Nippondenso Co Ltd | 冷媒凝縮器 |
| EP0945696A1 (en) * | 1998-03-27 | 1999-09-29 | Karmazin Products Corporation | Aluminium header construction |
| US6253837B1 (en) * | 1998-03-23 | 2001-07-03 | Long Manufacturing Ltd. | By-pass values for heat exchanger |
| US20170028814A1 (en) * | 2013-09-16 | 2017-02-02 | Denso International America, Inc. | Vehicular Air-Conditioning System With A Switching Heat Exchanger |
| KR20220083876A (ko) * | 2020-12-11 | 2022-06-21 | 주식회사 두원공조 | 열교환기 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102103951B1 (ko) | 2012-07-06 | 2020-04-24 | 삼성전자주식회사 | 냉장고 |
-
2022
- 2022-06-30 KR KR1020220080586A patent/KR20240003295A/ko active Pending
-
2023
- 2023-04-28 CN CN202380046929.5A patent/CN119404064A/zh active Pending
- 2023-04-28 US US18/878,110 patent/US20260029201A1/en active Pending
- 2023-04-28 WO PCT/KR2023/005867 patent/WO2024005335A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07127948A (ja) * | 1992-11-02 | 1995-05-19 | Nippondenso Co Ltd | 冷媒凝縮器 |
| US6253837B1 (en) * | 1998-03-23 | 2001-07-03 | Long Manufacturing Ltd. | By-pass values for heat exchanger |
| EP0945696A1 (en) * | 1998-03-27 | 1999-09-29 | Karmazin Products Corporation | Aluminium header construction |
| US20170028814A1 (en) * | 2013-09-16 | 2017-02-02 | Denso International America, Inc. | Vehicular Air-Conditioning System With A Switching Heat Exchanger |
| KR20220083876A (ko) * | 2020-12-11 | 2022-06-21 | 주식회사 두원공조 | 열교환기 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119404064A (zh) | 2025-02-07 |
| US20260029201A1 (en) | 2026-01-29 |
| KR20240003295A (ko) | 2024-01-08 |
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