Capacitor for a vehicle
The integrated collector-dryer condenser with stacked plates addresses size and efficiency issues in air and water-cooled condensers by reducing components and enhancing cooling efficiency through secondary refrigerant cooling.
Patent Information
- Application Number
- DE102012105573
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2011-12-08
- Filing Date
- 2012-06-26
- Publication Date
- 2026-01-22
- Estimated Expiration
- 2032-06-26
AI Technical Summary
Air-cooled condensers in vehicles face challenges with increased size, reduced condensation efficiency, and complex connections, while water-cooled condensers have lower condensation temperatures and higher costs and weight.
A condenser design that integrates a collector-dryer section with stacked metal plates, allowing coolant-cooled refrigerant condensation, reducing components, simplifying connections, and enhancing cooling efficiency by minimizing dead volume and increasing heat-radiating surface area.
The integrated design reduces costs and weight, simplifies pipe arrangements, and improves cooling efficiency by secondary refrigerant cooling, without increasing size, thus enhancing marketability.
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Abstract
Description
Background of the invention; Field of the invention
[0001] The present invention relates to a condenser for a vehicle (e.g., a motor vehicle). In particular, the present invention relates to a condenser for a vehicle, which is of the type of plate heat exchanger / plate cooler in which a collector-dryer section is integrally formed (e.g., as a single piece of material) and which is liquid-cooled (e.g., water-cooled), in which a refrigerant is condensed by means of a coolant (e.g., cooling water). Related technology
[0002] Typically, an air conditioning system for a vehicle maintains a suitable interior / passenger compartment temperature regardless of the ambient temperature, ensuring a comfortable interior environment.
[0003] Such an air conditioning system has a compressor that compresses a refrigerant, a condenser that condenses and liquefies the refrigerant compressed by the compressor, an expansion valve that allows the refrigerant condensed and liquefied by the condenser to expand rapidly, and an evaporator that evaporates the refrigerant expanded by the expansion valve and cools air supplied to the passenger compartment where the air conditioning system is located, by utilizing the heat of vaporization (latent heat / energy).
[0004] In this process, the condenser cools compressed gaseous refrigerant from high temperature / high pressure by using outside air that flows into the vehicle while driving, and allows it to condense into liquid refrigerant at a low temperature.
[0005] Such a condenser is usually connected by a pipe to a collector-dryer, which is provided to improve the efficiency of condensation by gas-liquid separation and to remove moisture from the refrigerant.
[0006] An air-cooled condenser, which exchanges heat with the outside air (ambient air), is primarily used as a condenser in vehicles. Because such an air-cooled condenser has a pin-tube-like structure, its overall size (dimensions) can be increased to improve cooling performance. This can make it difficult to fit / install the air-cooled condenser in a small engine compartment.
[0007] To solve such a problem, a water-cooled condenser is used in the vehicle, which uses coolant (e.g., cooling water) as a refrigerant.
[0008] However, compared to an air-cooled condenser, the water-cooled condenser has a lower refrigerant condensation temperature of approximately 5-15 °C, and consequently, the difference between the condensation temperature and the ambient temperature is small. This reduces the condensation efficiency due to the minimal subcooling effect, and consequently, the cooling efficiency can also be reduced.
[0009] Furthermore, the size of a radiator or the capacity / power of a cooling fan can be increased, thus improving the efficiency of condensation or the cooling process of the water-cooled condenser for a vehicle. This can increase costs and weight, and connections between the receiver-dryer and the condenser can become more complex.
[0010] The foregoing information disclosed in the section “Background of the Invention” is provided solely for a better understanding of the general background of the invention and should not be regarded as confirmation or in any way as an indication that this information belongs to the prior art as it is (already) known to the person skilled in the art.
[0011] Furthermore, FR 2 947 041 A1 discloses a condenser with a heat exchanger section that ensures the cooling of a refrigerant by a coolant, wherein another heat exchanger section provides additional cooling of the refrigerant by the coolant, wherein a liquid reserve is arranged between the heat exchanger sections and is circulated by the refrigerant, wherein the heat exchanger sections are formed by two rows of plates stacked in a stacking direction, the liquid reserve being partially formed by a cavity formed directly in the plate stack. Another condenser for a vehicle is known from US 7 264 043 B2. Explanation of the invention
[0012] The object of the present invention is to provide a condenser for a vehicle which has the advantages of reducing the number of components, simplifying the arrangement of connecting pipes, and reducing costs and weight as a result of the condenser being integrally (e.g., materially in one piece) formed with a collector-dryer, being made from a plurality of stacked plates (e.g., metal plates) and being designed to cool a refrigerant by means of a coolant.
[0013] It is further an object of the present invention to provide a condenser for a vehicle which has the advantages that the condenser improves the efficiency of the cooling by reducing dead (unused) volume (dead space) in the condenser and increasing a heat radiating surface.
[0014] According to the invention, a condenser for a vehicle according to claim 1 is used in an air conditioning system which has an expansion valve, an evaporator and a compressor, and is provided between the compressor and the expansion valve and allows coolant to circulate, which is supplied by a radiator (cooler), in order to condense the refrigerant supplied by the compressor through heat exchange between the coolant and the refrigerant.
[0015] The condenser according to the invention comprises: a first heat radiation section, which is formed by stacking a plurality of plates (e.g., metal plates) on top of each other and which is connected to the radiator (cooler) to circulate the coolant, and which is configured to circulate the refrigerant supplied by the compressor in order to condense the refrigerant by heat exchange between the coolant and the refrigerant; a second heat radiation section, which is integrally (e.g., as a single piece of material) formed on a lower section of the first heat radiation section; a collector-dryer section, which is formed by stacking a plurality of plates (e.g.,a metal plate) which is arranged separately from the first and second heat radiation section and which is connected to the first and second heat radiation section respectively in order to carry out gas-liquid separation and dehumidification (moisture removal) of the condensed refrigerant supplied by the first heat radiation section, and to supply the refrigerant to the second heat radiation section, and a lower cover which is configured to connect a lower section of the second heat radiation section with a lower section of the collector-dryer section and in which a connecting channel is formed, the connecting channel being configured to allow the refrigerant to flow from the collector-dryer section into the second heat radiation section.
[0016] The condenser may also have a connecting pipe designed to connect the collector-dryer section to the first heat radiating section.
[0017] The first heat radiation section may further comprise: a refrigerant inlet formed at one end section of the first heat radiation section and connected to the compressor to allow the refrigerant to flow into the first heat radiation section, and a first connecting hole formed at the other end section of the first heat radiation section, wherein one end of the connecting pipe is inserted into the first connecting hole.
[0018] The collector-dryer section can be provided with a second connecting hole associated with the first connecting hole, and the other end of the connecting pipe can be inserted into the second connecting hole, so that the refrigerant from the first heat radiating section flows through the connecting pipe into the second connecting hole.
[0019] The first heat radiation section can be designed to condense the refrigerant by exchanging heat with the coolant and to release the condensed refrigerant through the connecting pipe, which is connected to the first connecting hole, to the collector-dryer section.
[0020] The lower cover may have: a refrigerant outlet, which is formed at an end section of the lower cover associated with the refrigerant inlet and which is designed to connect the second heat radiating section to the expansion valve, and a coolant inlet, which is formed at an end section of the lower cover separate from the refrigerant outlet and which is designed to connect the first and the second heat radiating section to the radiator.
[0021] The first heat radiation section may also have a coolant outlet, which is formed separately from the first connection hole at the other end and which is connected to the radiator in order to discharge the coolant towards the radiator.
[0022] The second heat radiation section can be designed to cause the refrigerant, which is released from the first heat radiation section and in which gas-liquid separation and dehumidification have been carried out in the collector-dryer section, to exchange heat a second time (secondarily, a second time) with the coolant, which has a low temperature.
[0023] The collector-dryer section can be provided with a (free) space formed within the collector-dryer section, and a desiccant can be introduced into the space.
[0024] The connecting channel can be formed on the lower cover between the second heat radiating section and the collector-dryer section, one end of the connecting channel can be connected to a third connecting hole on a lower section of the other end section of the second heat radiating section, and the other end of the connecting channel can be connected to the collector-dryer section.
[0025] The condenser may further include: a mounting plate which is associated with the connecting channel, the space and the third connecting hole and which is attached to the lower cover (140), wherein the mounting plate prevents refrigerant from escaping into the environment and desiccant from escaping into the (free) space.
[0026] The second heat radiation section can cause the coolant and the refrigerant to exchange heat with each other through a counterflow of coolant and refrigerant.
[0027] The radiator (cooler) may be connected to a reservoir and a cooling fan / cooler fan may be provided at a rear section of the radiator (cooler).
[0028] The condenser may have a plate heat exchanger, which is formed by stacking / layering a plurality of plates.
[0029] The lower cover may further have a fastening projection which is formed along a width direction between the collector-dryer section and the two heat-radiating sections, and the fastening projection may be configured to fasten the first and second heat-radiating sections and the collector-dryer section in a state such that the first and second heat-radiating sections are arranged separately from the collector-dryer section.
[0030] The methods and devices of the present invention have other properties and advantages, which will become clear or be explained in more detail from the accompanying drawings included herein and the following detailed description, which together serve to explain certain principles of the present invention. Brief description of the drawings Fig. Figure 1 is a schematic representation of an exemplary air conditioning system for a vehicle in which a condenser according to the present invention is used. Fig. Figure 2 is a perspective view of an exemplary capacitor for a vehicle according to the present invention. Fig. Figure 3 is another perspective view of an exemplary capacitor for a vehicle according to the present invention. Fig. Figure 4 is a top view of an exemplary capacitor for a vehicle according to the present invention. Fig. Figure 5 is a cross-sectional view along line AA in Fig. 4. Fig. Figure 6 is a cross-sectional view along line BB in Fig. 4. Detailed description
[0031] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. Although the invention is described in connection with the exemplary embodiments, it is clear that the present description is not intended to limit the invention to these exemplary embodiments. On the contrary, the invention is intended not only to cover the exemplary embodiments, but also various alternatives, modifications, variations, and other embodiments that may be included within the scope and meaning of the invention as defined by the attached claims.
[0032] Fig. Figure 1 is a schematic representation of an exemplary air conditioning system for a vehicle in which a condenser according to the present invention is used. Fig. Figure 2 is a perspective view of an exemplary capacitor for a vehicle according to the present invention. Fig. Figure 3 is another perspective view of an exemplary capacitor for a vehicle according to the present invention, Fig. Figure 4 is a top view of an exemplary capacitor for a vehicle according to the present invention. Fig. Figure 5 is a cross-sectional view along line AA in Fig. 4, and Fig. Figure 6 is a cross-sectional view along line BB in Fig. 4.
[0033] A capacitor 100 for a vehicle according to numerous embodiments of the present invention, as in Fig. Figure 1 shows that it is used in an air conditioning system which has an expansion valve to allow a liquid refrigerant to expand, an evaporator 103 to allow the refrigerant which has expanded through the expansion valve to evaporate in heat exchange with air, and a compressor 105 to obtain a gaseous refrigerant from the evaporator and compress it.
[0034] The condenser 100 is provided between the compressor 105 and the expansion valve 101, and is designed to circulate a coolant supplied by the radiator 107 and to condense a refrigerant supplied by the compressor 105 through heat exchange with the coolant.
[0035] The radiator 107 is connected to a reserve reservoir 108, and a cooling fan / radiator fan 109 is provided at a rear section of the radiator 107.
[0036] In this design, a collector-dryer section 130 is integrally (e.g., materially one piece) (with the condenser), and a plurality of plates 111 and 131 are stacked (one above the other) in the condenser 100 for a vehicle according to numerous embodiments of the present invention. The condenser 100 for a vehicle is designed to condense the refrigerant by means of the coolant. Therefore, the number of components can be reduced, the arrangement of connecting pipes can be simplified, and costs and weight can be reduced. Furthermore, the cooling efficiency can be improved because dead (unused) volume (dead space) in the condenser 100 for a vehicle can be minimized and the heat-radiating surface area can be increased.
[0037] For this purpose, the capacitor 100 for a vehicle according to numerous embodiments of the present invention, as in Fig. 2 to Fig. Figure 4 shows a first heat radiating section 110, a second heat radiating section 120, a collector-dryer section 130 and a lower cover 140.
[0038] The first heat radiation section 110 is formed by stacking a plurality of plates 111 on top of each other, is connected to the radiator 107 to allow the coolant to circulate, and is designed to allow the refrigerant supplied by the compressor 105 to circulate in order to allow the refrigerant to condense through / in heat exchange with the coolant.
[0039] Furthermore, the second heat radiation section 120 is integrally formed (e.g., as a single piece of material) on a lower section of the first heat radiation section 110.
[0040] The second heat radiation section 120 is designed to cool the refrigerant a second time (secondarily, twice) which has already been cooled and condensed in the first heat radiation section (a first time).
[0041] The second heat radiation section 120 is designed to carry out heat exchange by means of a counterflow of coolant and refrigerant.
[0042] The majority of plates 111 are stacked one above the other in the second heat radiation section 120, and refrigerant lines 113 and coolant lines 115 are arranged alternately between the majority of plates 111. Since the refrigerant flows through the refrigerant lines 113 and the coolant through the coolant lines 115, the refrigerant and coolant do not mix. Furthermore, the refrigerant and coolant flow in opposite directions and exchange heat with each other.
[0043] According to numerous embodiments, the collector-dryer section 130 is formed by stacking a plurality of plates 131 on top of each other and is arranged separately from the first and the second heat radiation section 110 and 120.
[0044] Furthermore, the collector-dryer section 130 is connected to the first heat radiation section 110 to obtain the condensed refrigerant from the first heat radiation section 110 and to perform gas-liquid separation and dehumidification (moisture removal) of the refrigerant. The collector-dryer section 130 is also connected to the second heat radiation section 120 to supply the refrigerant to the second heat radiation section 120, where gas-liquid separation and dehumidification of the refrigerant are carried out.
[0045] Since the collector-dryer section 130 uses a collector-dryer that has the same shape as the condenser 100, dead (unused) volume (dead space) can be reduced compared to a conventional collector-dryer with a cylindrical shape.
[0046] The collector-dryer section 130 is connected to the first heat radiation section 110 by a connecting pipe 150.
[0047] According to numerous embodiments, a refrigerant inlet 117 is formed at an end section of the first heat-radiating section 110, which is an end section opposite the collector-dryer section 130. The refrigerant inlet 117 is connected to the compressor 105, and the refrigerant flows into the first heat-radiating section 110 through the refrigerant inlet 117.
[0048] Furthermore, a first connecting hole 119 is formed at the other end section of the first heat radiation section 110, into which one end of the connecting tube 150 is inserted.
[0049] The first heat radiation section 110 is designed to allow the refrigerant flowing in it to condense through heat exchange with the coolant and to allow the condensed refrigerant to flow through the connecting pipe 150, which is connected to the first connecting hole 119, to the collector-dryer section 130.
[0050] Here, the second connecting hole 133, which corresponds to the first connecting hole 119, is formed on the collector-dryer section 130. The other end of the connecting pipe 150 is inserted into the second connecting hole 133, so that the refrigerant flows from the first heat radiant section through the connecting pipe 150 to the collector-dryer section 130.
[0051] A (free) space 137 is formed in the collector-dryer section 130 and a desiccant 135 is introduced into the space 137.
[0052] According to numerous embodiments, the desiccant is designed to remove moisture from the condensed refrigerant.
[0053] The desiccant can be replaced according to a (predetermined) service life. That is, the desiccant 135 is replaceable and located in the collector-dryer section 130.
[0054] According to numerous embodiments, the lower cover 140 connects a lower section of the second heat radiating section 120 with a lower section of the collector-dryer section 130.
[0055] A fastening projection 141 is formed on the lower cover 140 between the two heat-radiating sections 110 and 120 and the collector-dryer section 130 along a width direction of the lower cover 140. The fastening projection 141 secures the first and second heat-radiating sections 110 and 120 to the collector-dryer section 130 in such a way that the first and second heat-radiating sections 110 and 120 are arranged separately from the collector-dryer section 130.
[0056] A connecting channel 142 is formed on the lower cover 140 and the refrigerant flows from the collector-dryer section 130 through the connecting channel 142 to the second heat radiant section 120.
[0057] This means that the second heat radiation section 120 receives the refrigerant from the collector-dryer section 130 via the connecting channel 142, whereby gas-liquid separation and dehumidification of the refrigerant are carried out. Furthermore, the second heat radiation section 120 causes the refrigerant to exchange heat with the coolant a second time (secondarily).
[0058] A refrigerant outlet 143, which is connected to the second heat radiating section 120, is formed at an end section of the lower cover 140 associated with the refrigerant inlet 117, and the second heat radiating section 120 is connected to the expansion valve 101 through the refrigerant outlet 143.
[0059] Furthermore, a coolant inlet 145 is formed at the end section of the lower cover. The coolant inlet 145 is arranged separately from the refrigerant outlet 143 and is connected to the first and second heat radiating sections 110 and 120. The first and second heat radiating sections 110 and 120 are connected to the radiator 107 via the coolant inlet 145.
[0060] A coolant outlet 118 is formed at the other end section of the first heat radiating section 110. The coolant outlet 118 is arranged separately from the first connecting hole 119 and is connected to the radiator 107 to discharge the coolant towards the radiator 107.
[0061] This means that the low-temperature coolant supplied by the radiator 107 flows into the condenser 100 through the coolant inlet 145, which is formed on the lower cover 140. The low-temperature coolant flowing into the condenser 100 first flows through the second heat dissipation section 120.
[0062] Furthermore, the refrigerant flows through the collector-dryer section 130 after being cooled at the first heat-radiating section 110. The refrigerant then flows through the connecting channel 142 into the second heat-radiating section 120. Since the refrigerant is cooled a second time (secondarily) by the low-temperature coolant at the second heat-radiating section 120, the cooling efficiency can be improved.
[0063] According to numerous embodiments, a filter is integrally formed (e.g., materially in one piece) with the desiccant 135, and the filter removes, for example, foreign materials which are contained in the refrigerant that is supplied to the collector-dryer section.
[0064] This means that moisture present in the refrigerant is removed by the desiccant 135, and foreign materials contained in the refrigerant are filtered out by the filter. The refrigerant is then cooled a second time (secondarily) at the second heat radiant section 120 and then flows through the refrigerant outlet 143 to the expansion valve 101.
[0065] Consequently, foreign materials contained in the refrigerant are prevented from blocking the expansion valve.
[0066] According to numerous embodiments, the connecting channel 142 can be a groove formed on the lower cover 140 between the second heat radiating section 120 and the collector-dryer section 130.
[0067] One end of the connecting channel 142 is connected to a third connecting hole 121 at a lower section of the other end of the second heat radiating section 120, and the other end of the connecting channel 142 is connected to the space 137 of the collector-dryer section 130.
[0068] This means that the refrigerant discharged from chamber 137 of the collector-dryer section 130 flows through the connecting channel 142 into the third connecting hole 121, which is formed on the second heat radiating section 120. The refrigerant then flows through the second heat radiating section 120.
[0069] A mounting plate 147, associated with the connecting channel 142, the chamber 137, and the third connecting hole 121, is attached to the lower cover 140. The mounting plate 147 is designed to prevent refrigerant from escaping into the environment and the desiccant 135, which is introduced into the chamber 137, from leaking out.
[0070] The condenser 100 according to numerous embodiments of the present invention has a plate heat exchanger which is formed by stacking a plurality of plates 111 and 131.
[0071] According to the condenser 100 for a vehicle, the coolant, which is cooled at the radiator 107, flows as in Fig. 5 and Fig. 6 shown, first through the coolant inlet 145 into the second heat radiation section 120.
[0072] After the coolant has flowed through the first and second heat radiation sections 110 and 120 along the coolant lines 115, which are formed between the majority of plates 111, the coolant is released through the coolant outlet 118.
[0073] At this point, the refrigerant flows from the compressor 105 through the refrigerant inlet 117 to the first heat radiation section 110. The refrigerant flowing in the first heat radiation section 110 flows along the refrigerant lines 113, which are formed between the coolant lines 115.
[0074] The first heat radiation section 110 allows the refrigerant to condense through heat exchange with the coolant. The condensed refrigerant then flows through the connecting pipe 150 into the collector-dryer section 130.
[0075] The gas-liquid separation of the refrigerant is carried out while the condensed refrigerant circulates in the collector-dryer section 130, and moisture in the refrigerant is removed by the desiccant 135.
[0076] The refrigerant then flows through the connecting channel 142 and the third connecting hole 121 into the second heat radiation section 120.
[0077] The refrigerant flowing into the second heat radiation section 120 and the low-temperature coolant flowing into the second heat radiation section 120 first flow in opposite directions. At this point, the refrigerant exchanges heat with the coolant a second time (secondarily). This cools the refrigerant a second time (secondarily) and feeds it to the expansion valve 101 via the refrigerant outlet 143.
[0078] Since the collector-dryer section 130 is connected to the other side of the first and second heat-radiating sections 110 and 120 by the lower cover 140, additional connecting pipes for linking the collector-dryer section 130 to the first and second heat-radiating sections 110 and 120 can be omitted. Furthermore, the collector-dryer section 130 has the same shape as the condenser 100, thus minimizing dead (unused) volume (dead space).
[0079] Since, according to numerous embodiments of the present invention, the condenser 100 is integrally formed (e.g., materially in one piece) with the collector-dryer section 130, is formed by stacking a plurality of plates (one on top of the other), and is designed to cool refrigerants by means of a coolant, the number of components can be reduced, the arrangement of connecting pipes can be simplified, and costs and weight can be reduced.
[0080] Since the collector-dryer section 130 is structurally connected to the first and second heat-radiating sections 110 and 120 via the lower cover and fluidly connected to the connecting pipe 150 via the connecting channel 142, dead (unused) volume (dead space) in the condenser 100 can be minimized and the heat-radiating surface area can be increased. This improves the efficiency of condensation and cooling without increasing the size (dimensions) of the condenser 100, and enhances its marketability (saleability).
[0081] Since the coolant first flows into the second heat radiation section 120 and the refrigerant, which has flowed through the collector-dryer section 130, is cooled a second time (secondarily, twice), the temperature of the refrigerant can be further reduced and the cooling performance of the air conditioning system can be improved.
[0082] To facilitate the explanation and precise definition of the attached claims, the terms upper and lower, front and rear, inner and outer, etc. are used to describe properties of the exemplary embodiments with reference to the positions of these features shown in the drawings.
[0083] The preceding description of certain exemplary embodiments of the present invention served the purpose of illustration and description. It is not intended to be exhaustive or to limit the invention to precisely the disclosed forms, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were selected and described to illustrate certain principles of the invention and its practical applicability, thereby enabling the person skilled in the art to produce and apply various exemplary embodiments of the present invention, as well as various alternatives and variations thereof. It is desired that the scope of the invention be defined by the accompanying claims.
Claims
A condenser (100) for a vehicle, used in an air conditioning system comprising an expansion valve (101), an evaporator (103), and a compressor (105), wherein the condenser (100) is provided between the compressor (105) and the expansion valve (101) and circulates refrigerant supplied by a radiator (107) to condense the refrigerant supplied by the compressor (105) by heat exchange between the refrigerant and the refrigerant, the condenser (100) comprising: a first heat-radiating section (110) formed by stacking a plurality of plates (111) and connected to the radiator (107) to circulate the refrigerant, and configured to circulate the refrigerant supplied by the compressor (105) to condense the refrigerant by heat exchange between the refrigerant and the refrigerant let,a second heat radiation section (120) which is integrally formed on a lower section of the first heat radiation section (110), a collector-dryer section (130) which is formed by stacking a plurality of plates (131) which is arranged separately from the first and the second heat radiation sections (110, 120) and which is connected to the first and the second heat radiation sections (110, 120) respectively in order to carry out gas-liquid separation and dehumidification of the condensed refrigerant supplied by the first heat radiation section (110) and to supply the refrigerant to the second heat radiation section (120), and a lower cover (140) which connects a lower section of the second heat radiation section (120) with a lower section of the collector-dryer section (130) and in which a connecting channel (142) is formed, wherein the connecting channel (142) is set up toto allow the refrigerant to flow from the collector-dryer section (130) into the second heat radiation section (120). The condenser (100) according to claim 1, further comprising a connecting tube (150) which is configured to connect the collector-dryer section (130) to the first heat radiant section (110). The condenser (100) according to claim 2, wherein the first heat radiating section (110) further comprises: a refrigerant inlet (117) formed at an end section of the first heat radiating section (110) and connected to the compressor (105) to allow the refrigerant to flow into the first heat radiating section (110), and a first connecting hole (119) formed at the other end section of the first heat radiating section (110), wherein an end of the connecting tube (150) is inserted into the first connecting hole (119). The condenser (100) according to claim 3, wherein the collector-dryer section (130) is provided with a second connecting hole (133) associated with the first connecting hole (119), and the other end of the connecting tube (150) is inserted into the second connecting hole (133), so that the refrigerant flows from the first heat radiant section (110) through the connecting tube (150) into the second connecting hole (133). The condenser (100) according to claim 3, wherein the first heat radiant section (110) is configured to condense the refrigerant by exchanging heat with the coolant and to discharge the condensed refrigerant through the connecting pipe (150), which is connected to the first connecting hole (119), to the collector-dryer section (130). The condenser (100) according to claim 3, wherein the lower cover (140) has: a refrigerant outlet (143) which is formed at an end section of the lower cover (140) associated with the refrigerant inlet (117) and which connects the second heat radiating section (110) to the expansion valve (101), and a coolant inlet (145) which is formed at an end section of the lower cover (140) separate from the refrigerant outlet (143) and which connects the first and the second heat radiating section (110, 120) to the radiator (107). The condenser (100) according to claim 6, wherein the first heat radiating section (110) further comprises a coolant outlet (118) which is formed separately from the first connecting hole (119) at the other end thereof and which is connected to the radiator (107) in order to discharge the coolant towards the radiator (107). The condenser (100) according to claim 1, wherein the second heat radiant section (120) is configured to cause the refrigerant, which is released from the first heat radiant section (110) and in which gas-liquid separation and dehumidification have been carried out in the collector-dryer section (130), to secondarily exchange heat with the coolant, which has a low temperature. The condenser (100) according to claim 1, wherein the collector-dryer section (130) is provided with a space (137) which is formed in the collector-dryer section (130), and wherein a desiccant (135) is introduced into the space (137). The condenser (100) according to claim 9, wherein the connecting channel (142) is formed on the lower cover (140) between the second heat radiating section (120) and the collector-dryer section (130), one end of the connecting channel (142) is connected to a third connecting hole (121) on a lower section of the other end section of the second heat radiating section (120), and the other end of the connecting channel (142) is connected to the collector-dryer section (130). The condenser (100) according to claim 10, further comprising a mounting plate (147) which is associated with the connecting channel (142), the space (137) and the third connecting hole (121) and which is attached to the lower cover (140), wherein the mounting plate (147) prevents refrigerant from escaping into the environment and desiccant (135) which is introduced into the space (137) from escaping. The condenser (100) according to claim 1, wherein the second heat radiation section (120) causes the coolant and the refrigerant to exchange heat with each other by means of a counterflow of coolant and refrigerant. The capacitor (100) according to claim 1, wherein the radiator (107) is connected to a reserve reservoir (108) and a cooling fan (109) is provided at a rear section of the radiator (107). The condenser (100) according to claim 1, wherein the condenser (100) comprises a plate heat exchanger formed by stacking a plurality of plates (111, 131). The condenser (100) according to claim 1, wherein the lower cover (140) further comprises a fastening projection (141) which is formed along a width direction between the collector-dryer section (130) and the two heat-radiating sections (110, 120), and the fastening projection (141) is configured to secure the first and second heat-radiating sections (110, 120) and the collector-dryer section (130) in a state such that the first and second heat-radiating sections (110, 120) are arranged separately from the collector-dryer section (130).
Citation Information
Patent Citations
Condenser for air-conditioning circuit of motor vehicle, has heat exchanging parts formed by two series of plates stacked in stacking direction, and fluid reserve formed partly by cavity that is directly formed in stack of plates
FR2947041A1
Condenser for vehicles and integrated radiator-condenser body including said condenser
US7264043B2