Economical heat exchanger for vehicles

Abstract

The application relates to the technical field of automobile heat exchange, and discloses an economic heat exchanger for an automobile, which comprises a flow guide component, a heat exchange component and an adsorption component, the heat exchange component comprises an inner flow channel pipe, an outer flow channel pipe, a partition net and heat-conducting sand, the inner flow channel pipe is attached to the outer flow channel pipe, the outer flow channel pipe is internally provided with the partition net, the outer flow channel pipe is divided into at least one constraint cavity through the partition net, a plurality of heat-conducting sands are filled in the constraint cavity, the heat-conducting sand is made of a magnetic material, and a magnetic block is movably arranged outside the outer flow channel pipe. The magnetic block moves with the adsorbed heat-conducting sand, when the magnetic block moves to a side of the partition net far from the constraint cavity, the magnetic force of the magnetic block cannot support the heat-conducting sand, the heat-conducting sand flows in the constraint cavity along gaseous or liquid refrigerant, the flowing heat-conducting sand is used as a heat-conducting medium, the heat-conducting efficiency of the refrigerant is improved, and the heat exchange between the refrigerant and the outer flow channel pipe can be more efficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile heat exchange technology, and particularly relates to an economical heat exchanger for automobile. BACKGROUND

[0002] The automobile is provided with a cooling system and an air conditioning system, and the heat exchanger is a device for supplying heat to the air conditioning system by the cooling system, efficiently utilizing the heat generated by the generator or engine of the automobile, and improving the temperature in the cabin in winter, which is more economical and environmental protection, and the automobile is more efficiently cooled in summer through the air conditioning system, and the function of the heat exchanger is mainly realized by high heat exchange efficiency.

[0003] However, since the thermal conductivity of the refrigerant is low, the existing heat exchanger mostly increases the length of the pipeline or increases the contact area between the heat exchanger and the air to improve the heat exchange efficiency, and the heat exchange efficiency between the refrigerant and the pipeline in the heat exchanger cannot be effectively improved, and the existing heat exchanger cannot conveniently add a heat-conducting medium to the refrigerant when the refrigerant flows through the heat exchanger, so that the heat conduction efficiency of the refrigerant cannot be effectively improved, and the heat exchange efficiency between the refrigerant and the pipeline is low. SUMMARY

[0004] In order to overcome the defects of the prior art, the purpose of the present application is to provide an economical heat exchanger for automobile to solve the problem that the existing heat exchanger cannot improve the heat conduction efficiency of the refrigerant when the refrigerant flows through the heat exchanger, resulting in low heat exchange efficiency between the refrigerant and the pipeline.

[0005] An economical heat exchanger for automobile, comprising: a flow guide component, a heat exchange component and an adsorption component; the flow guide component is provided with a refrigerant input end, a refrigerant output end, a cooling liquid input end and a cooling liquid output end;

[0006] The heat exchange component comprises: an inner flow channel pipe, an outer flow channel pipe, a screen and heat-conducting sand; one end of the inner flow channel pipe is in communication with the cooling liquid input end, and the other end is in communication with the cooling liquid output end; one end of the outer flow channel pipe is in communication with the refrigerant input end, and the other end is in communication with the refrigerant output end; the inner flow channel pipe is attached to the outer flow channel pipe, the outer flow channel pipe is provided with a screen, the outer flow channel pipe is divided into at least one constraint cavity by the screen, and the constraint cavity is filled with a plurality of heat-conducting sand; the heat-conducting sand can be in contact with the outer flow channel pipe, and the heat-conducting sand is made of a magnetically attractable material;

[0007] The adsorption component comprises a magnetic block and an auxiliary moving mechanism; the magnetic block is movably arranged outside the outer flow channel pipe, when the magnetic block moves to a position close to the constraint cavity, the magnetic block adsorbs and drives the heat-conducting sand in the constraint cavity to move, and the auxiliary moving mechanism is used for driving the magnetic block to move, when the magnetic block moves to a position close to the constraint cavity, the auxiliary moving mechanism drives the magnetic block to move towards the refrigerant input end.

[0008] Preferably, the outer flow channel pipe is composed of an outer wall and an inner wall. The heat-conducting sand can contact the outer wall and the inner wall. A flow gap for conveying refrigerant is formed between the outer wall and the inner wall. The inner wall of the outer flow channel pipe wraps around the inner flow channel pipe.

[0009] Preferably, the heat exchange component further includes a first turbulence block with a guide surface and a second turbulence block with an inclined surface. Both the first and second turbulence blocks are fixedly disposed in the confinement cavity. The inclined direction of the guide surface can guide the refrigerant to move towards the inner wall, and the inclined direction of the inclined surface can guide the refrigerant to move towards the outer wall.

[0010] Preferably, at least one auxiliary moving mechanism is disposed on the outside of the outer flow channel pipe. The auxiliary moving mechanism includes: a pulley, a transmission belt, and a driving component. Two pulleys are rotatably disposed on the outside of the outer flow channel pipe. The two pulleys are together wound with a transmission belt. Several magnetic blocks are disposed on the transmission belt. The driving component is used to drive the pulleys to rotate so as to move the magnetic blocks on the transmission belt.

[0011] Preferably, the automotive economic heat exchanger further includes a connecting component and a first heat sink. The connecting component includes an outer tube and an inner tube; the outer tube wraps around the inner tube, and the outer tube and the inner tube are in contact; the coolant inlet and coolant outlet are respectively connected to the two ends of the inner flow channel tube through the inner tube; the inner flow channel tube and the coolant inlet are connected through one of the inner tubes, and the inner flow channel tube and the coolant outlet are connected through the other inner tube; the outer flow channel tube and the refrigerant inlet are connected through one of the outer tubes, and the outer flow channel tube and the refrigerant outlet are connected through the other outer tube; the outer surface of the outer tube is provided with a first heat sink.

[0012] Preferably, the end of the inner flow channel pipe furthest from the refrigerant inlet is the coolant inlet, so that the flow direction of the coolant in the inner flow channel pipe is opposite to the flow direction of the refrigerant in the outer flow channel pipe.

[0013] Preferably, the outer flow channel includes a plurality of heat-conducting plates, one side of which is connected to the outer wall and the other side of which is connected to the inner wall.

[0014] Preferably, the adsorption component further includes a heat-conducting frame, on which multiple heat-conducting pipes are disposed. Both the heat-conducting frame and the heat-conducting pipes are in contact with the outside of the outer flow channel pipe. A third heat sink is also disposed on the heat-conducting frame.

[0015] Preferably, the driving component is an impeller frame, and the central shaft of the impeller frame is connected to one of the pulleys for transmission.

[0016] Preferably, a second heat sink is provided on the outer surface of the outer flow channel pipe.

[0017] Beneficial effects: Compared to the refrigerant only exchanging heat with the outer channel pipe, this method can increase the contact area by adsorbing the heat-conducting sand on the outer channel pipe, and the flowing heat-conducting sand can also make more full contact with the refrigerant as a heat transfer medium. This promotes more efficient heat exchange between the refrigerant and the outer channel pipe, allowing the refrigerant to absorb or release heat more fully, thereby improving the heating efficiency in low-temperature environments and the cooling efficiency in high-temperature environments.

[0018] (1) When the vehicle's cooling system and air conditioning system start to operate, the refrigerant flows in the outer channel pipe and the coolant flows in the inner channel pipe. When the refrigerant flows, it comes into contact with the heat-conducting sand in the confinement cavity, causing heat exchange between the heat-conducting sand and the refrigerant. When the refrigerant comes into direct contact with the heat-conducting sand adsorbed by the magnetic block, the heat-conducting sand adheres tightly to the wall of the outer channel pipe under the action of the magnetic force, causing direct heat exchange between the heat-conducting sand and the outer channel pipe. At the same time, the heat-conducting sand adsorbed by the magnetic block causes heat exchange between the refrigerant and the refrigerant. Through the large contact area of ​​the heat-conducting sand surface, the refrigerant can exchange heat with the outer channel pipe more efficiently.

[0019] (2) The magnetic block is driven to move by the auxiliary moving mechanism. When the magnetic block moves to a position close to the constraint cavity, the auxiliary moving mechanism drives the magnetic block to move towards the direction close to the refrigerant input end. The magnetic block moves with the adsorbed heat-conducting sand. When the magnetic block moves to the side of the partition away from the constraint cavity, the magnetic force of the magnetic block can no longer support this part of the heat-conducting sand. This part of the heat-conducting sand flows in the constraint cavity with the gaseous or liquid refrigerant. At this time, the flowing heat-conducting sand comes into full contact with the refrigerant and exchanges heat. In particular, the refrigerant located in the middle of the constraint cavity cannot directly exchange heat with the outer flow channel pipe. The flowing heat-conducting sand is used as the heat-conducting medium to improve the heat conduction efficiency of the refrigerant, so that the refrigerant and the outer flow channel pipe can exchange heat more efficiently. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0021] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0023] Figure 4 This is a three-dimensional structural diagram of the connecting component, heat exchange component, and adsorption component of the present invention.

[0024] Figure 5 This is a first partial cross-sectional three-dimensional structural diagram of the connecting component, heat exchange component, and adsorption component of the present invention.

[0025] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the connecting component and the heat exchange component of the present invention.

[0026] Figure 7 This is a second partial cross-sectional three-dimensional structural diagram of the connecting component, heat exchange component, and adsorption component of the present invention.

[0027] Figure 8 This is a schematic diagram of the planar structure of the connecting component, heat exchange component, and adsorption component of the present invention.

[0028] Figure 9 This is a partial cross-sectional three-dimensional structural diagram of the heat exchange component and adsorption component of the present invention.

[0029] Figure 10 This is a three-dimensional structural diagram of the adsorption component of the present invention.

[0030] Figure 11 This is a three-dimensional structural diagram of the magnetic block, auxiliary moving mechanism, and driving component of the present invention.

[0031] Figure 12 This is a three-dimensional structural diagram of the heat exchange component and the adsorption component of the present invention.

[0032] Reference numerals: 10, flow guiding component; 11, coolant inlet; 12, refrigerant outlet; 13, refrigerant inlet; 14, coolant outlet; 20, connecting component; 21, outer pipe; 22, inner pipe; 30, first heat sink; 40, heat exchange component; 41, inner flow channel pipe; 42, outer flow channel pipe; 421, inner wall; 422, outer wall; 423, heat-conducting fin; 424, second heat sink; 43, partition mesh; 431, constraint cavity; 44, heat-conducting sand; 45, first turbulence block; 46, second turbulence block; 50, adsorption component; 51, heat-conducting frame; 511, heat-conducting pipe; 512, third heat sink; 52, magnetic block; 53, auxiliary moving mechanism; 531, pulley; 532, transmission belt; 533, limiting rod; 54, driving component; 541, impeller frame. Detailed Implementation

[0033] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0034] In the description of this invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] like Figures 1-3 As shown, an economical heat exchanger for automobiles includes: a flow guiding component 10, a heat exchange component 40, and an adsorption component 50; the flow guiding component 10 has four chambers arranged in a straight line, the two middle chambers are connected to the vehicle's air conditioning system, and the other two chambers are connected to the vehicle's cooling system, the four chambers from left to right are the coolant inlet 11, refrigerant outlet 12, refrigerant inlet 13, and coolant outlet 14 of the flow guiding component 10.

[0038] like Figure 2 , Figures 4-9As shown, the heat exchange component 40 includes: an inner flow channel pipe 41, an outer flow channel pipe 42, a partition mesh 43, and thermally conductive sand 44; one end of the inner flow channel pipe 41 is connected to the coolant inlet 11, and the other end is connected to the coolant outlet 14; multiple inner flow channel pipes 41 are arranged in parallel; one end of the outer flow channel pipe 42 is connected to the refrigerant inlet 13, and the other end is connected to the refrigerant outlet 12; multiple outer flow channel pipes 42 are also arranged in parallel; the inner flow channel pipes 41 and the outer flow channel pipes 42 correspond one-to-one and fit together, and the outer flow channel pipe 42 is provided with a partition mesh 43, which divides the outer flow channel pipe 42 into at least one confining cavity 4. 31. Two sides of the constraint cavity 431 are each composed of two partitions 43, and the remaining sides of the constraint cavity 431 are composed of an external flow channel pipe 42. The constraint cavity 431 is filled with a number of thermally conductive sands 44. The mesh size of the partitions 43 is between 100 and 200 meshes, and the particle size of the thermally conductive sands 44 is larger than that of the partitions 43. The partitions 43 can block the thermally conductive sands 44, and the thermally conductive sands 44 can contact the external flow channel pipe 42. The thermally conductive sands 44 are made of magnetically adsorbable materials, such as iron, cobalt, nickel, or their alloys. It should be noted that the thermal conductivity of such materials is usually higher than that of general refrigerants.

[0039] like Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the adsorption component 50 includes a magnetic block 52 and an auxiliary moving mechanism 53. The magnetic block 52 is movably disposed outside the outer flow channel pipe 42. When the magnetic block 52 moves to a position close to the constraint cavity 431, the magnetic block 52 adsorbs and drives the heat-conducting sand 44 in the constraint cavity 431 to move. The auxiliary moving mechanism 53 is used to drive the magnetic block 52 to move. When the magnetic block 52 moves to a position close to the constraint cavity 431, the auxiliary moving mechanism 53 drives the magnetic block 52 to move towards the direction close to the refrigerant input end 13.

[0040] Whether in summer or winter, coolant and refrigerant need to transfer heat to the outside environment more efficiently to improve cooling efficiency. However, refrigerant and coolant can usually only contact the inner wall of the pipes, limiting their thermal conductivity. When the coolant temperature is high, the coolant can be cooled with the help of the cooler, improving the cooling efficiency of the car's cooling system. In winter, the coolant temperature can be used to heat the refrigerant, making the vehicle's air conditioning system more energy-efficient.

[0041] When the vehicle's cooling system and air conditioning system start operating, the refrigerant flows through the outer flow channel pipe 42, and the coolant flows through the inner flow channel pipe 41. When the refrigerant flows, it comes into contact with the heat-conducting sand 44 in the constraint cavity 431, causing heat exchange between the heat-conducting sand 44 and the refrigerant. When the refrigerant comes into direct contact with the heat-conducting sand 44 adsorbed by the magnetic block 52, the heat-conducting sand 44 adheres tightly to the wall of the outer flow channel pipe 42 under the action of magnetic force, causing direct heat exchange between the heat-conducting sand 44 and the outer flow channel pipe 42. At the same time, heat exchange occurs between the magnetically adsorbed heat-conducting sand 44 and the refrigerant. Through the large contact area of ​​the surface of the heat-conducting sand 44, the refrigerant can exchange heat with the outer flow channel pipe 42 more efficiently.

[0042] The magnetic block 52 is driven to move by the auxiliary moving mechanism 53. When the magnetic block 52 moves to a position close to the constraint cavity 431, the auxiliary moving mechanism 53 drives the magnetic block 52 to move towards the refrigerant input end 13. The magnetic block 52 moves with the adsorbed thermally conductive sand 44. When the magnetic block 52 moves to the side of the partition 43 away from the constraint cavity 431, the partition 43 blocks part of the thermally conductive sand 44. The magnetic block 52 continues to move, and the magnetic force of the magnetic block 52 can no longer support this part of the thermally conductive sand 44. This part of the thermally conductive sand 44 flows in the constraint cavity 431 with the gaseous or liquid refrigerant. At this time, the flowing thermally conductive sand 44 makes full contact with the refrigerant and... Heat exchange is performed, especially since the refrigerant located in the middle of the confining cavity 431 cannot directly exchange heat with the outer flow channel pipe 42. The flowing thermally conductive sand 44 is used as the heat transfer medium to improve the heat transfer efficiency of the refrigerant, allowing for more efficient heat exchange between the refrigerant and the outer flow channel pipe 42. When the flowing thermally conductive sand 44 flows to the mesh 43 near the refrigerant input end 13, the magnetic block 52, which has just moved to a position close to the confining cavity 431, adsorbs part of the flowing thermally conductive sand 44, and the thermally conductive sand 44 then exchanges heat with the outer flow channel pipe 42. Furthermore, both the thermally conductive sand 44 and the outer flow channel pipe 42 are solids with high thermal conductivity, enabling more efficient heat exchange.

[0043] Therefore, compared to the refrigerant only exchanging heat with the outer flow channel pipe 42, the contact area can be increased by the heat-conducting sand 44 adsorbed on the outer flow channel pipe 42, and the flowing heat-conducting sand 44 can also be used as a heat-conducting medium to make more full contact with the refrigerant. This promotes more efficient heat exchange between the refrigerant and the outer flow channel pipe 42, allowing the refrigerant to absorb or release heat more fully, thereby improving the heating efficiency in low-temperature environments and the cooling efficiency in high-temperature environments.

[0044] like Figure 6 , Figure 8 and Figure 9As shown, more preferably, in order to enable more efficient heat exchange between the outer flow channel 42 and the inner flow channel 41, the outer flow channel 42 is composed of an outer wall 422 and an inner wall 421. Thermally conductive sand 44 can contact the outer wall 422 and the inner wall 421. A flow gap for transporting refrigerant is formed between the outer wall 422 and the inner wall 421. The inner wall 421 extends to both ends and is fixed to the inside of the outer wall 422, so that the outer wall 422 and the inner wall 421... The outer wall 422 and the two upper partitions 43 together form the upper constraint cavity 431. The outer wall 422, the inner wall 421 and the two lower partitions 43 together form the lower constraint cavity 431, forming a total of two constraint cavities 431. The partitions can also be of other shapes, such as rectangular partitions, which can form constraint cavities 431 on their own. The inner wall 421 of the outer flow channel pipe 42 wraps around the inner flow channel pipe 41, so that the refrigerant in the outer flow channel pipe 42 can cool the coolant in the inner flow channel pipe 41 more efficiently.

[0045] like Figure 6 , Figure 8 and Figure 9 As shown, more preferably, the heat exchange component 40 further includes a first turbulence block 45 with a guide surface and a second turbulence block 46 with an inclined surface. The first turbulence block 45 has a guide surface along the refrigerant flow direction toward the inner wall 421, and there is a gap of a certain size between the guide surface and the inner wall 421. The inclined direction of the guide surface can guide the refrigerant to move closer to the inner wall 421. The second turbulence block 46 has an inclined surface along the refrigerant flow direction toward the outer wall 422, and there is a gap of a certain size between the second turbulence block 46 and the outer wall 422. The second turbulence block 46 is in contact with the inner wall 421, and the inclined direction of the inclined surface can guide the refrigerant to move closer to the inner wall 421. The refrigerant moves towards the outer side of the outer flow channel 42. The first turbulence block 45 and the second turbulence block 46 are both fixedly installed in the constraint cavity 431. The inclined direction of the guide surface can guide the refrigerant to move towards the inner wall 421, and the inclined direction of the slope can guide the refrigerant to move towards the outer wall 422. Specifically, the first turbulence block 45 and the second turbulence block 46 are both triangular prisms. One side of the first turbulence block 45 faces the outer wall 422, and the edge opposite to this side faces the inner wall 421. One side of the second turbulence block 46 faces the inner wall 421, and the edge opposite to this side faces the outer wall 422.

[0046] During the refrigerant flow, the flow-guiding surface of the first turbulence block 45 guides the refrigerant, causing it to move the heat-conducting sand 44 towards the inner wall 421. This allows the heat-conducting sand 44 to come into contact with the inner wall 421 during its flow, exchanging heat with it. Then, the heat-conducting sand 44 exchanges heat with the refrigerant, enabling the heat from the inner flow channel 41 to be transferred to the inner wall 421. The heat from the inner wall 421 is then transferred to the refrigerant more efficiently, thus more effectively cooling the coolant in the inner flow channel 41. Temperature; During the flow of refrigerant, it is guided by the inclined surface of the second turbulence block 46, which enables the refrigerant to move the heat-conducting sand 44 towards the outer wall 422. The flowing heat-conducting sand 44 can contact the outer wall 422, or contact the heat-conducting sand 44 adsorbed on the outer wall 422, and can also act as a heat-conducting medium, so that the refrigerant can exchange heat with the outer wall 422 more efficiently. In this way, it further promotes more efficient heat exchange between the refrigerant and the outer flow channel pipe 42, and cools the coolant in the inner flow channel pipe 41 more efficiently.

[0047] like Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 10 and Figure 12 As shown, more preferably, the adsorption component 50 also includes a heat-conducting frame 51, on which a plurality of heat-conducting pipes 511 are provided. Both the heat-conducting frame 51 and the heat-conducting pipes 511 are in contact with the outside of the outer flow channel pipe 42. The heat-conducting frame 51 is fixed to the outside of the outer flow channel pipe 42. A third heat sink 512 is also provided on the heat-conducting frame 51.

[0048] The heat-conducting frame 51, the heat-conducting pipe 511, and the third heat sink 512 are used together to increase the heat exchange area on the outer surface of the outer flow channel pipe 42, so as to improve the heat transfer efficiency between the outer flow channel pipe 42 and the outside air.

[0049] like Figure 7 , Figure 8 , Figure 10 and Figure 11As shown, more preferably, the outer flow channel pipe 42 is flat, and an auxiliary moving mechanism 53 is respectively provided on the upper and lower sides of the outer flow channel pipe 42. The auxiliary moving mechanism 53 includes: pulleys 531, transmission belt 532, limiting rod 533, and driving member 54; the two pulleys 531 are rotatably mounted on the heat-conducting frame 51 outside the outer flow channel pipe 42, and the two pulleys 531 are wound together with the transmission belt 532. Several magnetic blocks 52 are provided on the transmission belt 532, and the driving member 54 is used for... The drive pulley 531 rotates, and the drive component 54 can be a common power component that outputs rotational power, such as a motor, to drive the magnetic block 52 on the transmission belt 532 to move. The heat-conducting frame 51 is also rotatably provided with four limit rods 533. Part of the transmission belt 532 is wrapped around the limit rods 533. The limit rods 533 support the transmission belt 532, so that part of the transmission belt 532 is parallel to the side of the outer flow channel pipe 42. It should be noted that the magnetic block 52 will not contact the side of the outer flow channel pipe 42.

[0050] The drive belt 532 is driven to rotate by the drive component 54. The drive belt 532 drives the magnetic block 52 to rotate. When the magnetic block 52 moves to the side of the outer flow channel pipe 42, the drive belt 532 drives the magnetic block 52 to move along the side of the outer flow channel pipe 42 towards the refrigerant input end 13. The magnetic block 52 attracts the heat-conducting sand 44 in the confinement cavity 431 and drives the heat-conducting sand 44 to move. Under the support of the drive belt 532, the magnetic block 52 is only close to the side of the outer flow channel pipe 42 and does not contact the side of the outer flow channel pipe 42.

[0051] like Figure 2 , Figure 4 and Figure 6 As shown, more preferably, the above-mentioned automotive economic heat exchanger further includes a connecting component 20 and a first heat sink 30. The connecting component 20 includes an outer tube 21 and an inner tube 22; the outer tube 21 wraps around the inner tube 22, and the outer tube 21 and the inner tube 22 are in contact; the coolant inlet 11 and the coolant outlet 14 are respectively connected to the two ends of the inner flow channel tube 41 through the inner tube 22; the inner flow channel tube 41 and the coolant inlet 11 are connected through one of the inner tubes 22, and the inner flow channel tube 41 and the coolant outlet 14 are connected through the other inner tube 22; the outer flow channel tube 42 and the refrigerant inlet 13 are connected through one of the outer tubes 21, and the outer flow channel tube 42 and the refrigerant outlet 12 are connected through the other outer tube 21; the outer surface of the outer tube 21 is provided with a first heat sink 30.

[0052] The coolant flows through the inner pipe 22 and the inner flow channel pipe 41, while the refrigerant flows through the outer pipe 21 and the outer flow channel pipe 42. Heat exchange occurs through the inner pipe 22, the outer pipe 21, and the first heat sink 30. The outer flow channel pipe 42 also exchanges heat with the outer pipe 21. This allows the automotive economic heat exchanger to increase the heat exchange area in a more economical way through the inner pipe 22 and the outer pipe 21. It also facilitates heat exchange between the outer flow channel pipe 42 and the first heat sink 30 through the outer pipe 21, enabling the outer flow channel pipe 42 to exchange heat with the outside air more efficiently.

[0053] like Figure 6 and Figure 7 As shown, more preferably, the end of the inner flow channel pipe 41 away from the refrigerant inlet 13 is the coolant inlet 11, so that the flow direction of the coolant in the inner flow channel pipe 41 is opposite to the flow direction of the refrigerant in the outer flow channel pipe 42.

[0054] This increases the average temperature difference between the coolant and the refrigerant, thereby improving the heat exchange efficiency between them.

[0055] like Figure 6 and Figure 9 As shown, more preferably, the outer flow channel pipe 42 includes a plurality of heat-conducting plates 423. One side of the heat-conducting plate 423 is connected to the outer wall 422, and the other side of the heat-conducting plate 423 is connected to the inner wall 421. Sufficient gaps are left between the plurality of heat-conducting plates 423 to ensure that the refrigerant and the heat-conducting sand 44 can flow smoothly.

[0056] The heat exchange efficiency between the inner wall 421 and the outer wall 422 is improved by using several heat-conducting plates 423, thereby further improving the heat exchange efficiency between the outer flow channel pipe 42 and the inner wall.

[0057] like Figure 10 and Figure 11 As shown, more preferably, the driving component 54 is an impeller frame 541. The central shaft of the impeller frame 541 is fixedly connected to one of the pulleys 531. When the car is moving or the car's built-in fan is rotating, the airflow passes through the impeller frame 541. Due to the tilt angle of the blades of the impeller frame 541, the rotation direction of the impeller frame 541 can satisfy the requirement that the drive belt 532 drives the magnetic block 52 to move along the side of the external flow channel pipe 42 towards the direction close to the refrigerant input end 13, so as to drive the magnetic block 52 to move more easily.

[0058] like Figure 12 As shown, more preferably, a second heat sink 424 is provided on the outer surface of the outer flow channel pipe 42, and the heat exchange area of ​​the outer flow channel pipe 42 is further increased by the second heat sink 424.

[0059] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An economical heat exchanger for automobiles, characterized in that, include: Flow guiding components, heat exchange components, and adsorption components; The flow guiding component is provided with a refrigerant inlet, a refrigerant outlet, a coolant inlet, and a coolant outlet; The heat exchange component includes: an inner flow channel pipe, an outer flow channel pipe, a partition mesh, and thermally conductive sand; one end of the inner flow channel pipe is connected to the coolant inlet, and the other end is connected to the coolant outlet; one end of the outer flow channel pipe is connected to the refrigerant inlet, and the other end is connected to the refrigerant outlet; the inner flow channel pipe and the outer flow channel pipe are fitted together, and the partition mesh is provided inside the outer flow channel pipe to divide the outer flow channel pipe into at least one constraint cavity, the constraint cavity is filled with a plurality of thermally conductive sands, the thermally conductive sands are in contact with the outer flow channel pipe, and the thermally conductive sands are made of a magnetically absorbable material; The adsorption component includes a magnetic block and an auxiliary moving mechanism. The magnetic block is movably disposed outside the outer flow channel pipe. When the magnetic block moves to a position close to the constraint cavity, it adsorbs and drives the thermally conductive sand inside the constraint cavity to move. The auxiliary moving mechanism is used to drive the magnetic block to move. When the magnetic block moves to a position close to the constraint cavity, the auxiliary moving mechanism drives the magnetic block to move towards the direction closer to the refrigerant input end. The outer flow channel is composed of an outer wall and an inner wall. The thermally conductive sand is in contact with the outer wall and the inner wall. A flow gap for conveying refrigerant is formed between the outer wall and the inner wall. The inner wall of the outer flow channel wraps around the inner flow channel. The heat exchange component further includes a first turbulence block with a guide surface and a second turbulence block with an inclined surface, both of which are fixedly disposed within the constraint cavity; The automotive economic heat exchanger further includes a connecting component and a first heat sink. The connecting component includes an outer tube and an inner tube. The outer tube wraps around the inner tube, and the outer tube and the inner tube are in contact. The coolant inlet and the coolant outlet are respectively connected to the two ends of the inner flow channel tube through the inner tube. The inner flow channel tube and the coolant inlet are connected through one of the inner tubes, and the inner flow channel tube and the coolant outlet are connected through the other inner tube.

2. The economical heat exchanger for automobiles according to claim 1, characterized in that, The inclined direction of the guide surface guides the refrigerant to move closer to the inner wall, and the inclined direction of the slope guides the refrigerant to move closer to the outer wall.

3. The economical heat exchanger for automobiles according to claim 1, characterized in that, At least one of the auxiliary moving mechanisms is disposed on the outside of the outer flow channel pipe. The auxiliary moving mechanism includes: a pulley, a transmission belt, and a driving member. Two pulleys are rotatably disposed on the outside of the outer flow channel pipe. The two pulleys are together wound around the transmission belt. A plurality of magnetic blocks are disposed on the transmission belt. The driving member is used to drive the pulleys to rotate so as to move the magnetic blocks on the transmission belt.

4. The economical heat exchanger for automobiles according to claim 1, characterized in that, The outer flow channel pipe and the refrigerant inlet are connected through one of the outer pipes, and the outer flow channel pipe and the refrigerant outlet are connected through the other outer pipe; the outer surface of the outer pipe is provided with the first heat sink.

5. The economical heat exchanger for automobiles according to claim 1, characterized in that, The end of the inner flow channel pipe furthest from the refrigerant inlet is the coolant inlet, so that the flow direction of the coolant in the inner flow channel pipe is opposite to the flow direction of the refrigerant in the outer flow channel pipe.

6. The economical heat exchanger for automobiles according to claim 1, characterized in that, The outer flow channel includes a plurality of heat-conducting plates, one side of which is connected to the outer wall and the other side of which is connected to the inner wall.

7. The economical heat exchanger for automobiles according to claim 1, characterized in that, The adsorption component also includes a heat-conducting frame, on which multiple heat-conducting pipes are disposed. Both the heat-conducting frame and the heat-conducting pipes are in contact with the outside of the outer flow channel pipe. A third heat sink is also disposed on the heat-conducting frame.

8. The economical heat exchanger for automobiles according to claim 3, characterized in that, The driving component is an impeller frame, and the central shaft of the impeller frame is connected to one of the belt pulleys for transmission.

9. The economical heat exchanger for automobiles according to claim 1, characterized in that, A second heat sink is provided on the outer surface of the external flow channel pipe.

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