Parallel flow evaporator, air conditioning system and automobile

Abstract

The utility model belongs to the technical field of automobile air conditioning systems, and discloses a parallel flow evaporator, an air conditioning system and an automobile, the parallel flow evaporator comprises a plurality of fins and flat pipes, the plurality of fins are arranged in parallel at intervals, each fin is provided with a ventilation channel, and the two opposite sides of the ventilation channel are respectively an air inlet side and an air outlet side along the extension direction of the ventilation channel; a flat pipe is clamped between every two adjacent fins, on the air outlet side, the fins protrude out of the flat pipes, drainage channels are jointly formed by the adjacent fins and the flat pipes clamped between the fins on the air outlet side, and the extension direction of the drainage channels is a non-horizontal direction. Condensed water on the surfaces of the fins flows from the air inlet side to the air outlet side along with airflow of the air supply device in the extending direction of the ventilation channel, finally enters the drainage channel and flows out, and therefore the problems that the condensed water is gathered on the fins to form a water bridge and the condensed water is splashed on the air outlet side of the parallel flow evaporator are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air-conditioning systems, in particular to a parallel flow evaporator, an air-conditioning system and an automobile. Background Art

[0002] The evaporator in a car air conditioner is one of the core components of the system, cooling the air and ensuring basic air conditioning functions. Evaporators are categorized by structural type, including the traditional tube-fin structure, the stacked structure, and the new parallel flow structure. Parallel flow evaporators, due to their unique advantages, have seen rapid development and widespread application in automotive air conditioning systems in recent years.

[0003] During the initial cooling phase of a car air conditioner, air contacting the fins condenses, forming condensed water. This condensed water flows randomly across the fins and accumulates, eventually forming water bridges between adjacent blades. This increases the wind resistance of the parallel flow evaporator and increases the energy consumption of the blower. Furthermore, as the blower's air flows from the inlet to the outlet of the parallel flow evaporator, the water bridges that accumulate between the blades flow with the airflow until they splash out of the outlet, causing water dripping on the outlet side of the parallel flow evaporator.

[0004] Therefore, it is urgent to provide a parallel flow evaporator, an air conditioning system and a vehicle to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a parallel flow evaporator to solve the problem of condensed water gathering on the fins to form a water bridge and the problem of condensed water splashing on the air outlet side of the parallel flow evaporator.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A parallel flow evaporator comprising:

[0008] A plurality of fins are arranged in parallel and spaced apart, the fins have ventilation channels, and along the extension direction of the ventilation channels, two opposite sides of the ventilation channels are respectively an air inlet side and an air outlet side;

[0009] A flat tube is sandwiched between each two adjacent fins. On the air outlet side, the fins protrude from the flat tubes. The adjacent fins and the flat tubes sandwiched in the middle jointly form a drainage channel on the air outlet side. The extension direction of the drainage channel is non-horizontal.

[0010] Preferably, the drainage channel extends in a vertical direction.

[0011] Preferably, the parallel flow evaporator further comprises a water collection pan, which is arranged below the downstream of the drainage channel.

[0012] Preferably, the fin includes a plurality of blades and a plurality of connecting portions, the plurality of blades are horizontally spaced apart, a connecting portion is connected between each two adjacent blades, and a ventilation channel is formed between the two adjacent blades and the corresponding connecting portions.

[0013] Preferably, the depth of the drainage channel is less than 5.5 mm.

[0014] Preferably, the parallel flow evaporator further comprises a first header and a second header, and the first header is connected to the second header through a plurality of flat tubes.

[0015] Preferably, the parallel flow evaporator also includes a side plate assembly, which includes a first side plate and a second side plate, one end of the first side plate and the second side plate are both connected to the first collecting pipe, and the other end of the first side plate and the second side plate are both connected to the second collecting pipe, along the distribution direction of the multiple fins, the first side plate and the second side plate are respectively located on the side of the two outermost fins among the multiple fins that are away from each other.

[0016] Preferably, the parallel flow evaporator further comprises a porous plate, which is sealed in the first header and / or the second header.

[0017] Another object of the present invention is to provide an air conditioning system to solve the problem of condensed water gathering on the fins of the parallel flow evaporator to form a water bridge, and the problem of condensed water splashing on the air outlet side of the parallel flow evaporator.

[0018] To achieve this purpose, the present invention adopts the following technical solutions:

[0019] An air conditioning system includes a compressor, an air supply device and the above-mentioned parallel flow evaporator, the inlet of the compressor is connected to the flat tube, and the air outlet end of the air supply device is arranged toward the air inlet side.

[0020] Another object of the present utility model is to provide a car to solve the problem of condensed water gathering on the fins of the parallel flow evaporator of the air-conditioning system to form a water bridge, and the problem of condensed water splashing on the air outlet side of the parallel flow evaporator.

[0021] To achieve this purpose, the present invention adopts the following technical solutions:

[0022] An automobile comprises a vehicle body and the above-mentioned air-conditioning system, wherein the air-conditioning system is installed in the vehicle body.

[0023] Beneficial effects of the utility model:

[0024] The utility model provides a parallel flow evaporator, an air conditioning system, and a vehicle. The parallel flow evaporator includes a plurality of fins and flat tubes. The fins are arranged in parallel and spaced apart. The fins define a ventilation channel. Along the extension direction of the ventilation channel, opposite sides of the ventilation channel are the air inlet side and the air outlet side, respectively. A flat tube is sandwiched between each pair of adjacent fins. On the air outlet side, the fins protrude from the flat tubes. The adjacent fins and the flat tubes sandwiched therebetween together form a drainage channel on the air outlet side. The drainage channel extends in a non-horizontal direction. On the air outlet side of the ventilation channel, the fins protrude from the flat tubes, so that the adjacent fins on the air outlet side of the ventilation channel and the flat tubes sandwiched therebetween form a drainage channel. Consequently, condensed water on the fin surfaces flows along the extension direction of the ventilation channel from the air inlet side to the air outlet side, and finally enters the drainage channel. Under the action of gravity, the condensed water in the drainage channel flows downward until it is discharged from the drainage channel, thereby avoiding the problem of condensed water accumulating on the fins to form a water bridge and the problem of condensed water splashing on the air outlet side of the parallel flow evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the parallel flow evaporator provided by the utility model;

[0026] Figure 2 yes Figure 1 Cross-sectional view in the AA direction;

[0027] Figure 3 This is a schematic diagram of the assembly structure of fins and flat tubes provided by the utility model.

[0028] In the picture:

[0029] 1. Fin; 11. Blade; 12. Connecting part; 13. Ventilation channel; 14. Air inlet side; 15. Air outlet side; 2. Flat tube; 3. Drainage channel; 41. Third pipe section; 42. Fourth pipe section; 5. Second collecting pipe; 51. Fifth pipe section; 52. Sixth pipe section; 53. Seventh pipe section; 54. Eighth pipe section; 61. First side plate; 7. Perforated plate; 81. Pipe seat; 82. First partition plate; 83. Second partition plate; 84. Plug cover; 85. Connecting pipe assembly. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0031] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0034] This embodiment provides a parallel flow evaporator to solve the problem of condensed water gathering on the fins to form a water bridge, and the problem of condensed water splashing on the air outlet side of the parallel flow evaporator.

[0035] Specifically, if Figures 1 to 3As shown, the parallel flow evaporator includes multiple fins 1 and flat tubes 2. The multiple fins 1 are arranged in parallel and spaced apart. The fins 1 have ventilation channels 13. Along the extension direction of the ventilation channels 13, the ventilation channels 13 have opposite sides, namely an air inlet side 14 and an air outlet side 15. A flat tube 2 is sandwiched between each pair of adjacent fins 1. On the air outlet side 15, the fins 1 protrude from the flat tube 2. The adjacent fins 1 and the interposed flat tube 2 together form a drainage channel 3 on the air outlet side 15. The drainage channel 3 extends in a non-horizontal direction. On the air outlet side 15 of the ventilation channels 13, the fins 1 protrude from the flat tube 2, so that the adjacent fins 1 and the interposed flat tube 2 on the air outlet side 15 of the ventilation channels 13 form a drainage channel 3. Thus, the condensed water on the surface of the fin 1 will flow from the air inlet side 14 to the air outlet side 15 along the extension direction of the ventilation channel 13 with the air flow and finally enter the drainage channel 3. Under the action of gravity, the condensed water in the drainage channel 3 flows downward until it is discharged from the drainage channel 3, thereby avoiding the problem of condensed water gathering on the fin 1 to form a water bridge, and the problem of condensed water splashing on the air outlet side 15 of the parallel flow evaporator.

[0036] Furthermore, the drainage channel 3 extends in a vertical direction to achieve rapid outflow of condensed water, preventing condensed water from gathering on the outlet side 15 and causing condensed water to splash on the outlet side 15 of the parallel flow evaporator. In other embodiments, the extension direction of the drainage channel 3 can be a non-horizontal direction that is inclined downward.

[0037] Optionally, the parallel flow evaporator also includes a water collection pan, which is arranged below the downstream of the drainage channel 3 to collect and discharge the condensed water, thereby preventing the condensed water from dripping and gathering at the bottom of the parallel flow evaporator, causing the parallel flow evaporator to be soaked in water, leading to problems such as corrosion of the parallel flow evaporator.

[0038] Alternatively, as Figure 3 As shown, the fin 1 includes a plurality of blades 11 and a plurality of connecting portions 12. The blades 11 are arranged horizontally at intervals, and a connecting portion 12 is connected between each two adjacent blades 11. A ventilation channel 13 is formed between the two adjacent blades 11 and the corresponding connecting portion 12, allowing air from the air supply device to be blown smoothly from the air inlet side 14 to the air outlet side 15. In this embodiment, the connecting portion 12 is connected to the middle of the surface of the blade 11. In other embodiments, the connecting portion 12 is connected in a V-shaped or C-shaped manner to a surface offset from the middle of the blade 11 or to one end of the blade 11, or the connecting portion 12 is omitted. The multiple blades 11 are sequentially connected end to end to form a plate-shaped corrugated fin 1.

[0039] Alternatively, as Figure 2As shown, the depth of the drainage channel 3 is less than 5.5 mm, improving the overall consistency of the parallel flow evaporator. The depth of the drainage channel 3 corresponds to the protrusion of the fin 1 from the flat tube 2 on the outlet side 15 of the ventilation channel 13. Therefore, limiting the protrusion of the fin 1 from the flat tube 2 to less than 5.5 mm can avoid the problem of the fin 1 being hit and bent due to excessive protrusion from the flat tube 2. In this embodiment, the depth of the drainage channel 3 is 1.7 mm. In other embodiments, the depth of the drainage channel 3 can be 1.0 mm, 4.5 mm, or 5.5 mm, etc.

[0040] Alternatively, as Figure 1 As shown, the parallel flow evaporator further includes a first manifold and a second manifold 5. The first manifold includes a first pipe segment (not shown), a second pipe segment (not shown), a third pipe segment 41, and a fourth pipe segment 42. The second manifold 5 includes a fifth pipe segment 51, a sixth pipe segment 52, a seventh pipe segment 53, and an eighth pipe segment 54. The first pipe segment communicates with the fifth pipe segment 51 via the first portion of flat tubes 2, the second pipe segment communicates with the sixth pipe segment 52 via the second portion of flat tubes 2, the third pipe segment 41 communicates with the seventh pipe segment 53 via the third portion of flat tubes 2, and the fourth pipe segment 42 communicates with the eighth pipe segment 54 via the fourth portion of flat tubes 2, thereby enabling refrigerant circulation within the parallel flow evaporator. It should be noted that in this embodiment, two flat tubes 2 are sandwiched between every two blades 11, and the flat tubes 2 located between the two blades 11 extend along the extension direction of the ventilation channel 13.

[0041] Furthermore, the parallel flow evaporator also includes a side plate assembly, which includes a first side plate 61 and a second side plate (not shown in the figure), one end of the first side plate 61 and the second side plate are both connected to the first collecting pipe, and the other ends of the first side plate 61 and the second side plate are both connected to the second collecting pipe 5. Along the distribution direction of the multiple fins 1, the first side plate 61 and the second side plate are respectively located on the side of the two outermost fins 1 among the multiple fins 1 that are away from each other, thereby protecting the outermost fins 1 and enhancing the deformation resistance of the parallel flow evaporator.

[0042] Optionally, the parallel flow evaporator further includes a porous plate 7, which is sealed within the first manifold. This allows the refrigerant flowing within the first manifold to be divided into multiple, uniformly sized streams by the pores of the porous plate 7. This also helps prevent gas-liquid stratification of the refrigerant and ensures more uniform distribution of the refrigerant between the flat tubes 2, resulting in a better cooling effect. In other embodiments, the porous plate 7 is sealed within the second manifold 5. In another embodiment, both the first and second manifolds 5 are sealed with the porous plate 7.

[0043] Optionally, the parallel flow evaporator further includes a tube socket 81, which is disposed on the second manifold 5. The second manifold 5 is connected to an outlet pipe (not shown) via the tube socket 81, thereby enabling circulation of the refrigerant between the refrigerant and the outside world. The provision of the tube socket 81 avoids the outlet pipe being directly welded to the second manifold 5, which would affect the stability of the connection between the outlet pipe and the second manifold 5 if the welding strength weakens. In other embodiments, the first manifold may be connected to the outlet pipe via the tube socket 81, or the second manifold 5 may be connected to the inlet pipe via the tube socket 81, or the first manifold may be connected to the inlet pipe via the tube socket 81.

[0044] Optionally, the parallel flow evaporator further includes a first partition 82. The first manifold has a generally figure-eight structure. The first manifold includes a first tube body and a second tube body that are not interconnected but connected to each other. The first partition 82 is inserted between the first tube body and the second tube body, and the first partition 82 is a perforated partition. The first partition 82 separates the first tube body into a first tube segment and a second tube segment that are interconnected, and the first partition 82 separates the second tube body into a third tube segment 41 and a fourth tube segment 42 that are interconnected. On the other hand, the holes in the first partition 82 can further subdivide the refrigerant in the first manifold into multiple refrigerant streams of uniform size. Thus, the first partition 82 cooperates with the porous plate 7 to help further suppress gas-liquid stratification of the refrigerant and make the refrigerant more evenly distributed among the flat tubes 2.

[0045] Optionally, the parallel flow evaporator also includes a second partition 83, the second manifold 5 is roughly in an eight-shaped structure, the second manifold 5 includes a third tube body and a fourth tube body connected to each other, the second partition 83 is inserted into the third tube body and the fourth tube body, the second partition 83 separates the third tube body into a fifth tube segment 51 and a sixth tube segment 52 that are not connected to each other, and the second partition 83 separates the fourth tube body into a seventh tube segment 53 and an eighth tube segment 54 that are not connected to each other. In addition, the sixth tube segment 52 is connected to the seventh tube segment 53, and the fifth tube segment 51 and the eighth tube segment 54 are not connected to each other. This structural design can shorten the flow of the refrigerant in the second manifold 5, thereby effectively avoiding the gas-liquid stratification caused by the excessively long flow in the second manifold 5, and is more conducive to the uniform distribution of the refrigerant in the flat tube 2, effectively improving the working performance of the parallel flow evaporator.

[0046] Optionally, the parallel flow evaporator also includes a plug cap 84, which is removably mounted on one end of the first manifold, creating a sealed space within the first manifold to prevent refrigerant leakage. When the parallel flow evaporator requires inspection, cleaning, or maintenance, plug cap 84 can be easily removed, allowing access to internal pipes, tube bundles, and other components, enabling tasks such as cleaning dirt from the pipes and replacing damaged components.

[0047] Optionally, the parallel flow evaporator further includes a connecting pipe assembly 85, which includes two connecting pipe covers, a connecting pipe, and a plugging cap. The two connecting pipe covers are respectively installed at both ends of the connecting pipe to form a sealed space inside the connecting pipe to prevent refrigerant leakage. The plugging cap seals the connecting pipe, forming two disconnected sections of the connecting pipe, one of which is connected to the fifth pipe segment 51 and the other is connected to the eighth pipe segment 54. This disconnects the fifth pipe segment 51 from the eighth pipe segment 54, preventing the refrigerant in the fifth pipe segment 51 from entering the eighth pipe segment 54. The refrigerant in the fifth pipe segment 51 can only enter the first pipe segment through the flat tube 2.

[0048] The refrigerant flows into the fifth pipe section 51 from the fluid inlet (not shown in the figure). Since the second partition 83 divides the second manifold 5 into the fifth pipe section 51 and the sixth pipe section 52, which are not connected to each other, the refrigerant in the fifth pipe section 51 first flows into the first pipe section along the first portion of the flat tube 2. Since the first pipe section and the second pipe section are connected through the first partition 82, the refrigerant in the first pipe section can flow into the second pipe section through the first partition 82. The refrigerant in the second pipe section then flows into the sixth pipe section 52 along the second portion of the flat tube 2. The sixth pipe section 52 is connected to the seventh pipe section 53. Therefore, the sixth pipe section 52 The refrigerant in the pipe enters the seventh pipe segment 53. Since the second partition 83 divides the second manifold 5 into two independent pipes, the seventh pipe segment 53 and the eighth pipe segment 54, the refrigerant in the seventh pipe segment 53 flows along the third portion of the flat tube 2 into the third pipe segment 41. Since the third pipe segment 41 and the fourth pipe segment 42 are connected through the first partition 82, the refrigerant in the third pipe segment 41 flows through the first partition 82 into the fourth pipe segment 42. The refrigerant in the fourth pipe segment 42 flows through the fourth portion of the flat tube 2 to the eighth pipe segment 54, and finally flows out of the parallel flow evaporator from the tube seat 81 on the eighth pipe segment 54.

[0049] This embodiment also provides an air conditioning system to solve the problem of condensed water gathering on the parallel flow evaporator fins 1 to form a water bridge, and the problem of condensed water splashing on the air outlet side 15 of the parallel flow evaporator.

[0050] Specifically, the air conditioning system includes a compressor, an air supply device, and the aforementioned parallel flow evaporator. The compressor inlet is connected to the flat tube 2, and the air outlet end of the air supply device is arranged toward the air inlet side 14. The air supply device is located on the air inlet side 14 of the ventilation channel 13, so that the air supply device blows air from the air inlet side 14 to the air outlet side 15. If condensed water is generated on the surface of the fins 1 of the parallel flow evaporator, the condensed water will flow from the air inlet side 14 to the air outlet side 15 along the extension direction of the ventilation channel 13 under the action of the air supply device, and finally enter the drainage channel 3. Under the action of gravity, the condensed water in the drainage channel 3 flows downward until it is discharged from the drainage channel 3, thereby avoiding the problem of condensed water accumulating on the fins 1 to form a water bridge, and the problem of condensed water splashing on the air outlet side 15 of the parallel flow evaporator. As a result, the air conditioning system including the parallel flow evaporator can avoid the problem of condensed water accumulating on the fins 1 to form a water bridge, and the problem of condensed water splashing on the air outlet side 15 of the parallel flow evaporator.

[0051] This embodiment further provides a car to solve the problem of condensed water gathering on the parallel flow evaporator fins 1 of the air conditioning system to form a water bridge, and the problem of condensed water splashing on the air outlet side 15 of the parallel flow evaporator.

[0052] Specifically, the vehicle includes a vehicle body and the aforementioned air conditioning system, which is installed within the vehicle body. The aforementioned air conditioning system can prevent the problem of condensed water accumulating on the parallel flow evaporator fins 1 to form water bridges, and the problem of condensed water splashing on the outlet side 15 of the parallel flow evaporator. Consequently, a vehicle equipped with the air conditioning system can also prevent the problem of condensed water accumulating on the parallel flow evaporator fins 1 to form water bridges, and the problem of condensed water splashing on the outlet side 15 of the parallel flow evaporator.

[0053] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A parallel flow evaporator, characterized in that: include: A plurality of fins (1), wherein the plurality of fins (1) are arranged in parallel and spaced apart, and the fins (1) have a ventilation channel (13), and along the extension direction of the ventilation channel (13), two opposite sides of the ventilation channel (13) are an air inlet side (14) and an air outlet side (15); The flat tube (2) is sandwiched between each two adjacent fins (1); the fins (1) protrude from the flat tube (2) on the air outlet side (15); the adjacent fins (1) and the sandwiched flat tube (2) together form a drainage channel (3) on the air outlet side (15); and the extension direction of the drainage channel (3) is non-horizontal.

2. The parallel flow evaporator according to claim 1, characterized in that The drainage channel (3) extends in a vertical direction.

3. The parallel flow evaporator according to claim 1, characterized in that The parallel flow evaporator further comprises a water collection tray, which is arranged below the downstream of the drainage channel (3).

4. The parallel flow evaporator according to claim 1, characterized in that The fin (1) comprises a plurality of blades (11) and a plurality of connecting portions (12); the plurality of blades (11) are arranged in parallel and spaced apart; each two adjacent blades (11) are connected to a connecting portion (12); and the ventilation channel (13) is formed between the two adjacent blades (11) and the corresponding connecting portion (12).

5. The parallel flow evaporator according to claim 1, characterized in that The depth of the drainage channel (3) is less than 5.5 mm.

6. The parallel flow evaporator according to any one of claims 1 to 5, characterized in that: The parallel flow evaporator further comprises a first header and a second header (5), wherein the first header is in communication with the second header (5) via a plurality of the flat tubes (2).

7. The parallel flow evaporator according to claim 6, characterized in that The parallel flow evaporator further comprises a side plate assembly, wherein the side plate assembly comprises a first side plate (61) and a second side plate, one end of each of the first side plate (61) and the second side plate is connected to the first collecting pipe, and the other end of each of the first side plate (61) and the second side plate is connected to the second collecting pipe (5), and along the distribution direction of the plurality of fins (1), the first side plate (61) and the second side plate are respectively located on the side of the two outermost fins (1) among the plurality of fins (1) facing away from each other.

8. The parallel flow evaporator according to claim 6, characterized in that The parallel flow evaporator further comprises a porous plate (7), and the porous plate (7) is sealed in the first header and / or the second header (5).

9. An air conditioning system, characterized in that: It comprises a compressor, an air supply device and the parallel flow evaporator according to any one of claims 1 to 8, wherein the inlet of the compressor is connected to the flat tube (2), and the air outlet end of the air supply device is arranged toward the air inlet side (14).

10. An automobile, characterized in that: The vehicle comprises a vehicle body and the air conditioning system according to claim 9, wherein the air conditioning system is installed in the vehicle body.

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