CN201268217Y - Carbon dioxide parallel flow integrated heat radiating device for automobile - Google Patents

Abstract

The utility model patent discloses a carbon dioxide parallel flow integrated vehicle cooling device, including an air-conditioning condenser, a water tank radiator, and an engine oil cooler; It is located at the lower end of the air-conditioning condenser; both ends of the air-conditioning condenser are provided with collecting joints, and multiple rows of micro-porous tubes are connected between the collecting joints. One of the fine porous pipes is welded; the CO ₂ (R744) refrigerant gas-phase inlet pipe and outlet pipe are respectively connected to the header, and the headers at both ends are a plurality of sleeved structures that can be installed forward. The utility model integrates the condensation of the existing vehicle air conditioner, heat dissipation of the water tank, and cooling of the engine oil, and forms a modular structure. The refrigerant can reciprocate many times in the condenser, and the heat exchange capacity is strong.

Description

Carbon dioxide parallel flow integrated vehicle radiator

technical field

The utility model relates to a vehicle cooling device, in particular to a carbon dioxide parallel flow integrated vehicle cooling device. The device includes heat exchange components such as air-conditioning condensation, water tank heat dissipation, engine oil cooling, etc. in the form of parallel flow made of micro porous tubes (microchannels) and collecting pipes (sections).

Background technique

There are heat exchange devices with different functions and forms in various vehicles, such as condensers in automotive air-conditioning systems, water tank radiators in engine cooling systems, and oil radiators in engine lubrication systems. They all exist independently in the vehicle and are installed in the engine compartment of the vehicle, so they all have their own shortcomings that are difficult to overcome: ①The condenser in the automobile air conditioning system, the water tank radiator in the engine cooling system, and the engine oil in the engine lubrication system The radiator, etc., occupy a large volume in the engine compartment, which will inevitably lead to a reduction in the cabin space; ②The existing automotive air-conditioning system condensers mainly have the following three structural forms, namely, tube-sheet type, tube-belt type, and stacked For vehicles using tube-fin condensers, severe bumps and vibrations will occur during driving, which will cause looseness between the tubes and fins, which will aggravate the reduction of heat transfer effect; while tube-belt or stacked condensers will be used. Vehicles with evaporators have low heat exchange efficiency due to their large size, heavy weight, insufficient cooling capacity, small effective heat dissipation area, and large wind resistance; ③ Leaked vehicle refrigerant (currently commonly used vehicle refrigerant is R24) Atmospheric ozone layer causes great damage; ④ all have bigger problem to the installation and maintenance of above-mentioned each component.

In the prior art, the structural forms of the condenser include the following types: tube-fin condenser, tube-belt condenser, fin condenser, and parallel-flow condenser. Among them, the main structure of the parallel flow condenser is a unit parallel flow condenser, which is a kind of header on both sides without segmentation, and the refrigerant flows from the header on one side to the collector on the other side in parallel through the parallel installed pipes. The flow tube, the refrigerant in the condenser is only a one-way flow process; and the inner hole of the heat dissipation tube in the pipeline is large, so that the heat exchange between the refrigerant and the tube cannot be completely carried out, so that the refrigerant cannot completely dissipate heat, so Not suitable for CO ₂ (R744) refrigerant. The cooling pipes (radiation pipes) used for the heat dissipation of the water tank and the cooling of the engine oil are large circular pipes, which also cannot completely exchange heat between the refrigerant and the pipes, so that the refrigerant cannot complete the complete heat transfer. lost.

Utility model content

The purpose of this utility model is to overcome the above-mentioned problems in heat exchange devices such as the condenser in the air-conditioning system used in the current vehicle, the water tank radiator in the engine cooling system, and the engine oil radiator in the engine lubrication system, and provide a replacement Strong heat capacity, small size, save material and installation space CO2 parallel flow integrated cooling device, this device integrates the water tank radiator, engine oil radiator and other components in the engine lubrication system.

The carbon dioxide parallel flow integrated vehicle cooling device includes functions such as vehicle air-conditioning condensation, water tank heat dissipation, and engine oil cooling. They are all made in the form of fine porous tubes (microchannels) and collectors (sections) in structure. Parallel flow form integration. In this way, the effective heat dissipation area is increased, the windward area and windward resistance are reduced, the cooling effect of various parts such as the air conditioner condenser, water tank radiator, and oil radiator is enhanced, the corresponding volume is reduced, raw materials are saved, and installation and maintenance efficiency is improved. The use of the cooling device can also greatly improve its heat exchange efficiency, thereby reducing power consumption and increasing cooling capacity; the whole device has simple structure, light weight, easy fabrication and low cost.

The purpose of this utility model is achieved through the following technical solutions:

The carbon dioxide parallel flow integrated vehicle cooling device includes an air-conditioning condenser, a water tank radiator and an engine oil cooler; the water tank radiator and the engine oil cooler are arranged side by side, separated by a heat insulation layer, and are located at the lower end of the air-conditioning condenser. The air conditioner condenser is separated from the water tank radiator and engine oil cooler by the middle upper partition and the middle lower partition, and the middle upper partition and the middle lower partition are fixed by I-shaped brackets;

Both ends of the air-conditioning condenser are provided with collecting joints, and multiple rows of fine porous tubes are connected between the collecting joints. One welding; CO ₂ (R744) refrigerant gas phase inlet pipe and outlet pipe are respectively connected to the header, the headers at both ends are a plurality of sleeved structures that can be installed in the forward direction, one of the micro porous pipes is Circular, with a hole diameter of 0.3-1mm, one end is inserted into the opening of the collector at one end in the form of a small interference fit, and the other end is inserted into the opening of the collector at the opposite end in the form of a small interference fit;

The two ends of the radiator of the water tank are provided with collecting joints, the second of the multi-row fine porous tubes is connected between the collecting joints, and the corrugated cooling fins are sandwiched between the two rows of fine porous The second micro-porous tube is welded; the cooling water inlet and cooling water outlet are respectively connected to different headers at the outer end; Square, the size is 1~2mm×1~2mm;

The two ends of the engine oil cooler are provided with collecting joints, the third of the rows of micro porous tubes is connected between the collecting joints, the corrugated cooling fins are sandwiched between the two rows of the third of the micro porous tubes, and respectively connected with the two rows of micro porous tubes The third welding of the micro porous tube is performed; the oil inlet and the oil outlet are respectively connected to different collecting joints at the outer end; the collecting joints at the two ends are multiple sets of structures that can be installed in the forward direction, and the third of the micro porous tube is square , the size is 1~2mm×1~2mm.

The diameter of one of the fine porous tubes of the air-conditioning condenser is preferably 0.7mm.

The collectors at both ends of the air-conditioning condenser are multiple sets of forward-mounted structures, which means that the opening of one of the middle collectors is welded to the shrinkage of one of the inlet collectors; the outlet collector The opening part of one of the middle headers is welded to the necking part of one of the middle headers; the opening part of the fourth middle header is welded to the necking part of the fifth middle header.

The collectors at both ends of the radiator of the water tank are multiple sets of forward-mounted structures, which means that the opening of the second outlet collector is welded to the shrinkage of the second inlet collector, and the other end is the middle The second of the gathering festival.

The manifolds at both ends of the engine oil cooler are multiple sets of forward-mounted structures, which means that the opening of the third inlet manifold is welded to the constriction of the fourth intermediate manifold; the outlet manifold The opening part of section 3 is welded to the necking part of inlet collecting section 3; the other end is the middle collecting section 3.

Compared with the prior art, the utility model has the following advantages and positive effects:

1. It is easy to install and is suitable for various vehicles: because this device integrates the functions of the existing vehicle air conditioner condensation, water tank heat dissipation, engine oil cooling, etc., and is modularized, it avoids independent air conditioner condensation devices and water tank heat dissipation devices 1. The engine oil cooling system has been installed many times, which is prone to confusion.

2. Lighter overall quality and better cost performance: Since the entire device adopts a parallel flow structure, and the overall molding process can be used in manufacturing, its volume and raw materials used are correspondingly reduced, and the total mass of the device is lower than that of a stand-alone structure. It has been greatly reduced, and at the same time, the production cost is lower, and it is possible to have a greater price advantage.

3. Strong heat exchange capacity: the patented multi-component parallel flow condenser of this utility model has segmented collector pipes, and the refrigerant can flow back and forth in the condenser for many times, so that the heat of the refrigerant can be completely dissipated; The structure of the header of the flow pipe is a set-up structure that can realize automatic positive installation; the heat dissipation pipe used in this patent is a micro-porous pipe, which can make the heat of the refrigerant more and more efficient while ensuring the same flow rate. Completely dissipate; at the same time, the modularized radiator described in this patent can be conveniently applied to different usage occasions by increasing or decreasing the number of heat dissipation pipes, heat dissipation fins and the number of header joints connected thereto.

Description of drawings

Figure 1 is a schematic diagram of the structure of a carbon dioxide parallel flow integrated vehicle radiator.

Fig. 2 is a schematic cross-sectional view of A-A in Fig. 1 .

Fig. 3 is a schematic cross-sectional view of M-M in Fig. 2 .

Fig. 4 is a schematic cross-sectional view of B-B in Fig. 1 .

FIG. 5 is a schematic cross-sectional view of a microporous tube in FIG. 1 .

Fig. 6 is a schematic cross-sectional view of two microporous tubes in Fig. 1 .

Fig. 7 is a schematic diagram of three cross-sections of the microporous tube in Fig. 1 .

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings, but the embodiments of the utility model are not limited thereto.

As shown in Figures 1, 2, and 4, the carbon dioxide parallel-flow integrated cooling device includes air-conditioning condenser I, water tank radiator II, and engine oil cooler III. 18 and are located at the lower end of the air-conditioning condenser I. The air-conditioning condenser I is separated from the water tank radiator II and the engine oil cooler III by the upper middle partition 27 and the lower middle partition 26. The upper middle partition 27 and the lower middle partition The partition plate 26 is fixed by the I-shaped bracket 16 .

The air conditioner condenser I is mainly composed of one of the collector joint end covers 1, CO ₂ (R744) (R744—represents the CO ₂ refrigerant. The naming method of the refrigerant: use R, which is the first letter of the refrigerant in English, and press A certain rule indicates the number composition of the atomic composition of the refrigerant molecule), gas phase inlet pipe 2, one of the inlet headers 3, one of the microporous tubes 4, one of the intermediate headers 5, one of the corrugated cooling fins 6, CO ₂ (R744) gas-liquid two-phase outlet pipe 7, one of the outlet headers 8, the fourth of the middle header 28, the fifth of the middle header 29, the middle upper partition 27, and the upper cover 30. As shown in Figure 1, the CO ₂ (R744) gas-phase inlet pipe 2 is connected to one of the inlet headers 3 by brazing (hereinafter referred to as welding), and the CO ₂ (R744) gas-liquid two-phase outlet pipe 7 is welded on One of the outlet headers 8; the opening of one of the inlet headers 3 is welded to one of the end caps of the header 1; the opening of one of the middle headers 5 is connected to the shrinkage The mouth part is welded; the opening part of one of the outlet headers 8 is welded with the necking part of one of the intermediate headers 5; the opening of the fifth 29 of the intermediate header is welded with one of the end caps of the header 1; The opening part of the fourth header 28 is welded to the necking part of the fifth intermediate header 29; one of the rows of micro-porous tubes 4 is connected between the headers, and one end is one of the inlet headers 3, the middle One of the headers 5 and one of the outlet headers 8, the other end is the fifth 29 of the middle header and the fourth 28 of the middle header. As shown in Figures 3 and 5, one of the microporous tubes 4 is circular, with an aperture of 0.3 to 1mm, preferably 0.7mm, and one end is inserted into one of the inlet headers 3 (or the middle collector) in the form of a small interference fit. One of the joints 5 or one of the outlet joints 8) the opening D, the other end is inserted into the opening E of the middle joint five 29 (or the middle joint four 28) in the form of a small interference fit, and Connect by welding. One of the corrugated cooling fins 6 is clamped between one of the two rows of microporous tubes 4 and welded to one of the two rows of microporous tubes 4 respectively. The middle upper partition 27 is welded together with one of the bottom row of corrugated fins 6 , one of the outlet headers 8 , the fourth of the middle header 28 and the I-shaped bracket 16 . The upper cover 30 is welded with one of the uppermost row of corrugated fins 6 , one of the header end covers 1 , one of the inlet headers 3 and the fifth 29 of the middle headers.

As shown in Figure 1, when the air-conditioning condenser 1 is working, the high-temperature and high-pressure gas-phase refrigerant _CO2 (R744) enters one of the inlet headers 3 from the _CO2 (R744) gas-phase inlet pipe 2, and passes through one of the inlet headers 3. Enter one of the first group of micro-porous tubes 4, and flow to the fifth 29 of the middle header in parallel; the partially condensed CO ₂ (R744) refrigerant with a slightly smaller gaseous volume, under the action of the fifth 29 of the middle header ( This header makes the CO ₂ (R744) refrigerant with a slightly smaller gaseous volume not flow out of the condenser at this time, but flows to another set of micro-porous tubes) into one of the second group of micro-porous tubes 4, and then in parallel Flow to one of the intermediate headers 5; further condensed, CO ₂ (R744) refrigerant with smaller gaseous volume, flows into one of the third group of micro porous tubes 4 under the action of one of the intermediate headers 5, and flows in parallel To the fourth 28 of the middle header; most of the condensed CO ₂ (R744) refrigerant with a smaller gaseous volume flows into one of the fourth group of micro-porous tubes 4 under the action of the fourth 28 of the middle header, and flows in parallel To one of the outlet headers 8, the air-conditioning condenser 1 is drawn out through the _CO2 (R744) gas-liquid two-phase outlet pipe 7. Refrigerant CO ₂ (R744) is in contact with one of the microporous tubes 4 during the circulation in the condensing part I, and continuously transfers the contained heat to one of the microporous tubes 4, and then through the welded microporous tube 4 One of the corrugated fins 6 dissipates heat into the air flowing through this part of the device and is carried away so that heat dissipation is achieved. The CO ₂ (R744) refrigerant is converted from gas-phase CO ₂ (R744) to gas-liquid two-phase CO ₂ (R744), thereby realizing the condensation effect.

The number and length of one of the microporous tubes 4 and the number of parallel laminar flow cycles of the CO ₂ (R744) refrigerant are just an example for the convenience of illustrating the operation of the condensing module in this device. During specific implementation, the maximum cooling capacity may be considered, and the number and length of one of the microporous tubes 4 required, and the number of parallel laminar flow cycles of the CO ₂ (R744) refrigerant, may be determined.

The water tank radiator II is mainly composed of cooling water inlet 9, inlet collector section 10, cooling water outlet 11, outlet header section 12, micro porous tube 2 13, corrugated fins 2 14, intermediate collector The second 17 of the joint, the second 31 of the end cover of the collector joint are composed of parts such as.

As shown in Figure 1, the cooling water inlet 9 is connected to the inlet header 10 by welding, and the cooling water outlet 11 is welded to the outlet header 12; the opening of the inlet header 10 is connected to the outlet The necking part of the first header 8 is welded; the opening of the outlet header 2 12 is welded to the necking part of the inlet header 2 10; the opening of the middle header 2 17 is connected to the Cover two 31 welding. As shown in Figure 6, the second 13 of the micro-porous tubes is square, with a size of 1-2 mm * 1-2 mm, preferably 1.9 mm * 1.9 mm, and the multiple micro-porous tubes 13 are spaced from each other, and the two ends are connected in the set Between the flow joints, one end is the second 10 of the inlet header and the second 12 of the outlet header, and the other end is the second 17 of the intermediate header, which is connected in the same way as the first 4 of the micro porous pipe. The second 14 of the corrugated heat dissipation fins is clamped between the second 13 of the two rows of microporous tubes, and welded to the second 13 of the two rows of microporous tubes respectively. The middle lower partition 26 is welded with the second 14 of the uppermost row of corrugated cooling fins, the second 10 of the inlet header, the second 31 of the end cover of the header and the I-shaped bracket 16 respectively. The lower cover 15 is welded to the bottom of the second row of corrugated fins 14 and the bottom of the middle collector joint 17 respectively.

When the radiator II of the water tank is working, the high-temperature cooling water enters the inlet header 2 10 from the cooling water inlet 9, diverts through the inlet header 2 10 and enters the first group of micro-porous tubes 2 13, and flows to the middle collector in parallel. Flow joint 2 17; the cooled cooling water flows into the second group of micro porous pipe 2 13 under the action of the middle collecting joint 2 17, flows to the outlet collecting joint 2 12 in parallel, and passes through the cooling water outlet 11 Lead out the water tank cooling II. The cooling water is in contact with the micro-porous tube 2 13 during the circulation in the water tank cooling II, and continuously transfers the contained heat to the micro-porous tube 2 13, and then passes through the corrugated fins welded with the micro-porous tube 2 13 Two 14, dissipate heat to the air flowing through that part of the device and carry it away, thereby achieving heat dissipation. Complete the cooling process of cooling water from high temperature to low temperature.

The number and length of the micro-porous tubes 2 13 and the number of parallel laminar flow cycles of the cooling level are just one example of the operation of the water tank cooling module in this device for convenience. The specific implementation depends on the required cooling water volume and cooling requirements. And determine the number of tubes, the length and the cooling level of the second 13 of the required micro-porous tubes and the number of laminar flow cycles.

The engine oil cooler III is mainly composed of the middle collector section 19, the fine porous tube 20, the corrugated fins 21, the oil outlet 22, the outlet header 23, the oil inlet 24, and the inlet header The third 25, the second 31 of the collector end cover are composed of parts such as.

As shown in Figure 1, the engine oil inlet 24 is connected to the third inlet header 25 by welding, and the oil outlet 22 is welded to the third outlet header 23; the opening of the inlet header third 25 is connected to the middle collector The necking part of section 4 28 is welded; the opening part of outlet header 3 23 is welded with the necking part of inlet header 3 25; the opening part of middle header 3 19 is connected with the end cover of Two 31 welding. The third 21 of the corrugated cooling fins is sandwiched between the third 20 of the two rows of micro-porous tubes, and welded to the third 20 of the two rows of micro-porous tubes respectively. As shown in Figure 7, the third 20 of the microporous tubes is square, with a size of 1-2mm x 1-2mm, preferably 1.4mm x 1.4mm. The multiple micro-porous tubes 20 are spaced apart from each other, and the two ends are connected in a set. Between the flow joints, one end is the third 19 of the middle header, the other end is the third 23 of the outlet header and the third 25 of the inlet header, and its connection mode is the same as the first 4 of the micro porous pipe. The middle lower partition 26 is welded with the third 21 of the uppermost row of corrugated cooling fins, the third 25 of the inlet header, the second 31 of the end cover of the header and the I-shaped bracket 16 respectively. The lower cover 15 is welded with the third 21 of the bottom row of corrugated heat dissipation fins and the bottom of the third 19 of the middle collector joint respectively.

When the engine oil cooler III is working, the high-temperature engine oil enters the inlet header 25 from the oil inlet 24, passes through the inlet header 25 and enters the first group of micro-porous tubes 20, and flows to the middle collector in parallel Section 3 19; cooled machine oil flows into the second group of micro-porous pipes 20 under the action of the middle collecting section 19, flows to the outlet collecting section 3 23 in parallel, and draws the engine oil through the oil outlet 22 Cooling III.

The engine oil is in contact with the fine porous pipe 20 during the circulation in the engine oil cooling system, and continuously transfers the contained heat to the fine porous pipe 20, and then passes through the corrugated fins welded with the fine porous pipe 20. 3.21, Dissipate heat into the air flowing through that part of the device and carry it away, thereby effecting heat dissipation. Complete the cooling process of engine oil from high temperature to low temperature.

The number, length, and number of parallel laminar flow cycles of the micro-porous tubes 20 shown in Figure 1 are just one example of the operation of the engine oil cooling module in this device for convenience, and the specific implementation depends on the required cooling. Engine oil flow and cooling requirements, and determine the number of micro porous tubes 20, the number of pipes, length and cooling machine oil parallel laminar flow cycle times.

When assembling, the first step: one of the header end covers used to manufacture the air-conditioning condensing part I 1, the CO ₂ (R744) gas phase inlet 2, one of the inlet headers 3, the upper cover 30, the header end Components such as the second 31 of the cover are assembled as shown in Figure 1; the second step: act on the assembly with appropriate upper and lower fastening forces and left and right fastening forces. The third step: spot welding the relevant parts. Step 4: Brazing the relevant components. Step 5: Fill the position shown in the figure with heat insulating material to form a heat insulating layer 18 . The multi-media modularized micro-porous tube (micro-channel) parallel flow vehicle integrated heat dissipation device described in the utility model patent can be manufactured.

The utility model is structurally provided with collecting joints on both sides, and the air-conditioning condenser, water tank radiator, and engine oil cooler are combined by using parallel-flow micro-pipes between the collecting joints to realize modularization. Some air-conditioning condensers, engine oil coolers, and car radiators are all designed in one piece, which is complex and bulky and takes up valuable space in the car. The implementation of modularization can firstly avoid confusion during maintenance and installation, such as the wrong connection between the entrances and exits of each function and the corresponding pipe interface; secondly, the modular structure only uses a basic overall shape skeleton, omitting the need to form various functional blocks The required multiple basic skeletons save materials; thirdly, the integral modular structure can save the space required for separate installation, thereby providing more space for the vehicle power compartment. The structure of the utility model can improve the heat exchange capacity: because the refrigerant used in the utility model is CO ₂ (R744) refrigerant, which has a large latent heat of vaporization, and when it condenses in the condenser, it will release more heat than other existing refrigerants. More heat, so that the "cooling space" connected to it can cool down faster; at the same time, because the utility model adopts the microtube structure, it can make the heat medium and the microtube have sufficient contact, and can perform more complete heat exchange , so as to dissipate more heat on the same heat dissipation frontal area, that is, to increase the heat exchange area per unit volume; the utility model can also arrange heat dissipation fans according to needs, and the fans can dissipate heat and cool different components at the same time.

Claims (5)

1, the integrated automobile-used heat abstractor of carbon dioxide parallel flow comprises air-conditioning condenser, radiator of water tank and engine oil cooler; It is characterized in that, arranged side by side about described radiator of water tank and engine oil cooler, separate by thermal insulation layer, be positioned at the air-conditioning condenser lower end jointly, air-conditioning condenser and radiator of water tank and engine oil cooler separate by middle upper spacer and middle lower clapboard, and middle upper spacer and middle lower clapboard are fixed by the I shape support;

Described air-conditioning condenser two ends are provided with the afflux joint, arrange fine antipriming pipe more and are connected between the afflux joint, and the ripple radiating fin is clipped between the two row fine antipriming pipes, and weld with one of this two row fine antipriming pipe respectively; CO ₂(R744) refrigerant gas phase inlet pipe and outlet pipe are connected in respectively on the afflux joint, but the sleeve type structure that the afflux at described two ends joint is installed for a plurality of forwards, one of described fine antipriming pipe is circular, the aperture is 0.3～1mm, the form that one end cooperates with slight interference is inserted the afflux joint opening part of an end, and the form that the other end cooperates with slight interference is inserted the afflux joint opening part of opposite end;

Described radiator of water tank two ends are provided with afflux joint, arrange two of fine antipriming pipe more and be connected between the afflux joint, the ripple radiating fin be clipped in two row fine antipriming pipes two between, and respectively with two welding of this two row fine antipriming pipe; The cooling water inlet is bound up on respectively on the different afflux joint in outer end with cooling water outlet; But the sleeve type structure that the afflux at described two ends joint is installed for a plurality of forwards, two of fine antipriming pipe is square, is of a size of 1～2mm * 1～2mm;

Described engine oil cooler two ends are provided with afflux joint, arrange three of fine antipriming pipe more and be connected between the afflux joint, the ripple radiating fin be clipped in two row fine antipriming pipes three between, and respectively with three welding of this two row fine antipriming pipe; Outlet is bound up on respectively on the different afflux joint in outer end the machine oil inlet with machine oil; But the sleeve type structure that the afflux at described two ends joint is installed for a plurality of forwards, three of fine antipriming pipe is square, is of a size of 1～2mm * 1～2mm.

2, the integrated automobile-used heat abstractor of carbon dioxide parallel flow according to claim 1 is characterized in that one of described air-conditioning condenser fine antipriming pipe aperture is 0.7mm.

3, the integrated automobile-used heat abstractor of carbon dioxide parallel flow according to claim 1, but it is characterized in that sleeve type structure that the afflux joint at described air-conditioning condenser two ends is installed for a plurality of forwards is meant that opening of one of intermediate collector joint and the reducing position of one of import afflux joint weld; The reducing position welding of one of the opening of one of outlet afflux joint and intermediate collector joint; Five reducing position welding of four opening of intermediate collector joint and intermediate collector joint.

4, the integrated automobile-used heat abstractor of carbon dioxide parallel flow according to claim 1, but the sleeve type structure that the afflux joint that it is characterized in that described radiator of water tank two ends is installed for a plurality of forwards is meant two reducing position of two opening of outlet afflux joint and import afflux joint and welds that the other end is two of an intermediate collector joint.

5, the integrated automobile-used heat abstractor of carbon dioxide parallel flow according to claim 1, but it is characterized in that sleeve type structure that the afflux joint at described engine oil cooler two ends is installed for a plurality of forwards is meant that four reducing position of three opening of import afflux joint and intermediate collector joint welds; Weld at three reducing position of three opening of outlet afflux joint and import afflux joint; The other end is three of an intermediate collector joint.

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