A flow guide structure of an automobile plate heat exchange fin

Abstract

The utility model discloses a kind of flow guide structure of automobile plate heat exchange fin, more specifically related to plate heat exchange fin technical field, including heat exchange fin mainboard, the surface of heat exchange fin mainboard is symmetrically provided with two liquid passing grooves, the inside of liquid passing groove is provided with multiple shaft body installation grooves, the inside of liquid passing groove is provided with multiple arc rotation limiting grooves, rotating shaft is installed in the inside of shaft body installation groove, the connecting end of rotating shaft is installed with flow guide block, heat exchange mechanism is provided on heat exchange fin mainboard, barrier mechanism is provided on heat exchange fin mainboard.The utility model can rotate the flow guide block according to the fluid impact force size of flowing over and rotate angle by itself, so whether liquid flows fast or slow, flow is big or small, it can be flexibly guided and evenly dispersed to each tiny flow channel on the surface of heat exchange fin, avoid the situation that liquid only flows to partial area, and other area does not flow, so that cold and hot fluid is more fully contacted in whole heat exchange area, improve heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger technology, and more specifically, to a flow guiding structure for an automotive plate heat exchanger. Background Technology

[0002] Plate heat exchange fins are the core heat transfer elements of plate heat exchangers. They are usually made of thin metal plates (such as stainless steel) through precision pressing, with a specially designed corrugated pattern on the surface. Multiple heat exchange fins are stacked and assembled, and the corrugations work together to form narrow mesh flow channels for cold and hot fluids to pass through alternately. Its unique structure can effectively promote fluid turbulence and greatly increase the heat exchange area, thereby achieving efficient heat transfer between cold and hot fluids.

[0003] The flow guiding structure of common automotive plate heat exchangers can only guide the flow direction of the fluid, but lacks the function of self-adjusting the flow guiding direction. As a result, in actual applications, the fluid flowing through the corner holes is difficult to be evenly distributed to each flow guiding groove due to changes in flow velocity and flow rate, resulting in uneven fluid distribution on the entire surface of the heat exchanger and ultimately causing a reduction in heat exchange efficiency.

[0004] In summary, to improve heat exchange efficiency, it is necessary to address the problem of uneven fluid distribution, enabling the direction of flow to be self-adjusted in real time according to the fluid velocity and flow rate, thereby ensuring that the fluid is evenly distributed on the surface of the heat exchange plate. Utility Model Content

[0005] The present invention provides a flow guiding structure for automotive plate heat exchangers, which aims to solve the problem that the fluid flowing through the corner holes is difficult to distribute evenly to each flow guiding groove due to changes in flow velocity and flow rate, resulting in uneven fluid distribution on the entire surface of the heat exchanger.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flow guiding structure for an automotive plate heat exchanger, comprising a heat exchanger main board, two liquid passage grooves symmetrically opened on the surface of the heat exchanger main board, multiple shaft mounting grooves opened inside the liquid passage grooves, multiple arc-shaped rotation limiting grooves opened inside the liquid passage grooves, a rotating shaft installed inside the shaft mounting grooves, a flow guiding block installed at the connecting end of the rotating shaft, a heat exchange mechanism provided on the heat exchanger main board, and a barrier mechanism provided on the heat exchanger main board.

[0007] In a preferred embodiment, the heat exchange mechanism is used to exchange heat between hot and cold fluids. The heat exchange mechanism includes a flow channel assembly and an inlet / outlet assembly. The flow channel assembly is used to secondary disperse the flow direction of the fluid, and the inlet / outlet assembly is used to supply the input and output of hot and cold fluids.

[0008] In a preferred embodiment, the flow channel assembly includes a plurality of flow equalization channels and a plurality of flow distribution channels formed inside the flow channel.

[0009] In a preferred embodiment, the inlet / outlet hole assembly includes two hot medium inlet / outlet corner holes formed on the surface of the heat exchanger main board and two cold medium inlet / outlet corner holes formed on the surface of the heat exchanger main board.

[0010] In a preferred embodiment, the barrier mechanism is used to block the cold medium region and the hot medium region. The barrier mechanism includes a hot medium region sealing assembly and a cold medium region sealing assembly. The hot medium region sealing assembly is used to seal the region through which the hot fluid flows, and the cold medium region sealing assembly is used to seal the region through which the cold fluid flows.

[0011] In a preferred embodiment, the heat medium area sealing assembly includes snap-fit ​​notches formed at the upper and lower ends of the heat exchange fin main plate and a heat medium area sealing ring disposed on the surface of the heat exchange fin main plate.

[0012] In a preferred embodiment, the cold medium area sealing assembly includes a plurality of sealing connecting strips installed outside the hot medium area sealing ring and two cold medium area sealing rings installed outside the hot medium area sealing ring, wherein the end of the sealing connecting strip away from the hot medium area sealing ring is connected to the cold medium area sealing ring.

[0013] In a preferred embodiment, a sliding block is mounted on the surface of the guide block, and the sliding block is inserted into the interior of the arc-shaped rotation limiting groove.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention utilizes a rotatable guide block that rotates according to the force of the incoming fluid. This allows the liquid to be flexibly guided and evenly distributed into the tiny channels on the surface of the heat exchange plate, regardless of its speed or flow rate. This prevents the liquid from flowing only to certain areas while remaining unreachable, thus ensuring more thorough contact between hot and cold fluids throughout the entire heat exchange area. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is an overall exploded view of the present invention.

[0018] Figure 3 This is a schematic diagram of the heat exchanger main board structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the sealing ring structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the flow guide block structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Heat exchanger plate main board; 11. Liquid flow groove; 12. Shaft mounting groove; 13. Arc-shaped rotation limit groove; 14. Rotating shaft; 15. Flow guide block; 16. Sliding block; 211. Flow equalization groove; 212. Flow distribution groove; 221. Hot medium inlet and outlet corner holes; 222. Cold medium inlet and outlet corner holes; 311. Snap-fit ​​notch; 312. Hot medium area sealing ring; 321. Sealing connecting strip; 322. Cold medium area sealing ring. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 5 A flow guiding structure for an automotive plate heat exchanger includes a heat exchanger main board 1. Two liquid passage grooves 11 are symmetrically opened on the surface of the heat exchanger main board 1. Multiple shaft mounting grooves 12 are opened inside the liquid passage grooves 11. Multiple arc-shaped rotation limiting grooves 13 are opened inside the liquid passage grooves 11. A rotating shaft 14 is installed inside the shaft mounting groove 12. A flow guiding block 15 is installed at the connecting end of the rotating shaft 14. A heat exchange mechanism and a barrier mechanism are provided on the heat exchanger main board 1.

[0024] It should be noted that the rotating shaft 14 is fixed in the shaft mounting groove 12 by interference fit, and the guide block 15 can rotate freely around the center line of the rotating shaft 14. The arc-shaped rotation limiting groove 13 is used to constrain the swing range of the guide block 15.

[0025] It is worth noting that the flow-facing surface of the guide block 15 is a curved surface design. When the fluid impacts the guide block 15, it can automatically adjust the deflection angle according to the flow velocity to achieve dynamic flow diversion.

[0026] Refer to the instruction manual appendix Figure 3 The heat exchange mechanism is used to exchange heat between hot and cold fluids. The heat exchange mechanism includes a flow channel assembly and an inlet / outlet assembly. The flow channel assembly is used to secondary disperse the flow direction of the fluid, and the inlet / outlet assembly is used to supply the input and output of hot and cold fluids.

[0027] It should be noted that the flow channel assembly extends the fluid path through multi-stage flow guiding channels, and the inlet / outlet hole assembly ensures that the hot and cold fluids flow in opposite directions through corner hole positioning.

[0028] Refer to the instruction manual appendix Figure 3 The flow channel assembly includes multiple equalization channels 211 and multiple diversion channels 212 formed inside the liquid flow channel 11.

[0029] It should be noted that the flow equalization channel 211 is used to stabilize the fluid flow rate, and the flow dividing channel 212 is radially distributed to divide the fluid into multiple thin streams.

[0030] Refer to the instruction manual appendix Figure 3 The inlet and outlet hole assembly includes two hot medium inlet and outlet corner holes 221 formed on the surface of the heat exchange plate main board 1 and two cold medium inlet and outlet corner holes 222 formed on the surface of the heat exchange plate main board 1.

[0031] It should be noted that the hot medium inlet and outlet corner holes 221 and the cold medium inlet and outlet corner holes 222 are located at opposite ends of the diagonal of the heat exchange plate main board 1.

[0032] Refer to the instruction manual appendix Figures 3 to 4 The barrier mechanism is used to separate the cold medium area and the hot medium area. The barrier mechanism includes a hot medium area sealing assembly and a cold medium area sealing assembly. The hot medium area sealing assembly is used to seal the area through which the hot fluid flows, and the cold medium area sealing assembly is used to seal the area through which the cold fluid flows.

[0033] It should be noted that the hot medium area sealing assembly is set along the periphery of the liquid passage 11, and the cold medium area sealing assembly surrounds the cold medium inlet and outlet corner holes 222, forming a double sealing barrier.

[0034] It is worth noting that a heat insulation gap is reserved between the two sealing components to block the heat conduction path between the hot and cold areas.

[0035] Refer to the instruction manual appendix Figures 3 to 4 The heat medium area sealing assembly includes snap-fit ​​notches 311 opened at the upper and lower ends of the heat exchange plate main board 1 and a heat medium area sealing ring 312 disposed on the surface of the heat exchange plate main board 1.

[0036] It should be noted that the snap-fit ​​notch 311 is a trapezoidal groove, and the sealing ring 312 in the hot medium area is made of fluororubber with a double-lip sealing structure.

[0037] Refer to the instruction manual appendix Figures 3 to 4 The cold medium area sealing assembly includes multiple sealing connecting strips 321 installed on the outside of the hot medium area sealing ring 312 and two cold medium area sealing rings 322 installed on the outside of the hot medium area sealing ring 312. The end of the sealing connecting strip 321 away from the hot medium area sealing ring 312 is connected to the cold medium area sealing ring 322.

[0038] It should be noted that the sealing strip 321 connects the hot medium area sealing ring 312 and the cold medium area sealing ring 322 into an integral sealing frame.

[0039] Refer to the instruction manual appendix Figures 1 to 5 A sliding block 16 is installed on the surface of the guide block 15, and the sliding block 16 is inserted into the interior of the arc-shaped rotation limit groove 13.

[0040] It should be noted that the sliding block 16 is clearance-fitted with the arc-shaped rotation limiting groove 13, which restricts the guide block 15 to rotate only in the vertical plane.

[0041] Working principle: When the hot medium enters the corresponding liquid passage 11 through the hot medium inlet / outlet corner hole 221 on the heat exchange plate main board 1, or the cold medium enters another liquid passage 11 through the cold medium inlet / outlet corner hole 222, the fluid first impacts the flow-facing curved surface of the guide block 15. The fluid dynamics force the guide block 15 to deflect around the rotation axis 14. At the same time, the sliding block 16 on the surface of the guide block 15 slides in the arc-shaped rotation limiting groove 13, limiting the rotation angle range of the guide block 15. The guide block 15 automatically adjusts the deflection angle according to the real-time flow velocity and flow rate of the fluid, dynamically changing the flow distribution ratio, and guiding the fluid to the equalization groove 211 and the distribution groove 212 in different areas of the liquid passage 11. The flow equalization groove 211 stabilizes the mainstream flow, and the flow distribution groove 212 further divides the fluid into multiple fine streams, achieving secondary uniform distribution of the fluid on the surface of the heat exchange plate main board 1. During this process, the hot medium area sealing ring 312 is positioned and seals the hot medium flow channel area through the snap-fit ​​notch 311, while the cold medium area sealing ring 322 seals the cold medium flow channel area. The two are connected by the sealing connecting strip 321 to form an overall sealing frame, which strictly isolates the hot and cold medium areas, ensuring that the hot and cold fluids flow in opposite directions in closely adjacent flow channels and undergo efficient heat exchange through the metal plate wall, and finally discharge from the corresponding hot medium inlet and outlet corner holes 221 and cold medium inlet and outlet corner holes 222, respectively.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A flow guiding structure for automotive plate heat exchangers, characterized in that: The heat exchange plate main board (1) includes two liquid passage grooves (11) symmetrically opened on the surface of the heat exchange plate main board (1). Multiple shaft mounting grooves (12) are opened inside the liquid passage grooves (11). Multiple arc-shaped rotation limiting grooves (13) are opened inside the liquid passage grooves (11). A rotating shaft (14) is installed inside the shaft mounting grooves (12). A guide block (15) is installed at the connecting end of the rotating shaft (14). A heat exchange mechanism is provided on the heat exchange plate main board (1). A barrier mechanism is provided on the heat exchange plate main board (1).

2. The flow guiding structure of an automotive plate heat exchanger according to claim 1, characterized in that: The heat exchange mechanism is used to exchange heat between hot and cold fluids. The heat exchange mechanism includes a flow channel assembly and an inlet / outlet assembly. The flow channel assembly is used to secondary disperse the flow direction of the fluid, and the inlet / outlet assembly is used to supply the input and output of hot and cold fluids.

3. The flow guiding structure of an automotive plate heat exchanger according to claim 2, characterized in that: The flow channel assembly includes multiple equalization channels (211) and multiple diversion channels (212) formed inside the flow channel (11).

4. The flow guiding structure of an automotive plate heat exchanger according to claim 3, characterized in that: The inlet and outlet hole assembly includes two hot medium inlet and outlet corner holes (221) opened on the surface of the heat exchange plate main board (1) and two cold medium inlet and outlet corner holes (222) opened on the surface of the heat exchange plate main board (1).

5. The flow guiding structure of an automotive plate heat exchanger according to claim 4, characterized in that: The barrier mechanism is used to separate the cold medium area and the hot medium area. The barrier mechanism includes a hot medium area sealing assembly and a cold medium area sealing assembly. The hot medium area sealing assembly is used to seal the area through which the hot fluid flows, and the cold medium area sealing assembly is used to seal the area through which the cold fluid flows.

6. The flow guiding structure of an automotive plate heat exchanger according to claim 5, characterized in that: The heat medium area sealing assembly includes snap-fit ​​notches (311) opened at the upper and lower ends of the heat exchange plate main board (1) and a heat medium area sealing ring (312) disposed on the surface of the heat exchange plate main board (1).

7. The flow guiding structure of an automotive plate heat exchanger according to claim 6, characterized in that: The cold medium area sealing assembly includes multiple sealing strips (321) installed on the outside of the hot medium area sealing ring (312) and two cold medium area sealing rings (322) installed on the outside of the hot medium area sealing ring (312). The end of the sealing strip (321) away from the hot medium area sealing ring (312) is connected to the cold medium area sealing ring (322).

8. The flow guiding structure of an automotive plate heat exchanger according to claim 7, characterized in that: A sliding block (16) is installed on the surface of the guide block (15), and the sliding block (16) is inserted into the interior of the arc-shaped rotation limit groove (13).

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