A cooler

By employing flow equalization plates, staggered inlets and outlets, gradually increasing the outlet channel area, and adding guide plates in the cooler, the problem of uneven flow inside the cooler was solved, achieving uniform airflow distribution and improved cooling efficiency.

CN224435117UActive Publication Date: 2026-06-30KOBELCO COMPRESSORS MFG (SHANGHAI) CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KOBELCO COMPRESSORS MFG (SHANGHAI) CORP
Filing Date
2025-08-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing coolers, the flow rate of the cooling channel near the inlet is high, while the flow rate of the channel far from the inlet is low, resulting in uneven overall working efficiency of the cooler and affecting the cooling efficiency.

Method used

The design employs a flow equalization plate, with the density of through holes gradually increasing from near the inlet to far away from the inlet. Combined with the gradually increasing cross-sectional area of ​​the outlet channel, the inlet and outlet are staggered and set up, along with baffles and guide plates, to optimize airflow distribution.

Benefits of technology

This achieves uniform airflow distribution inside the cooler, improves the cooling effect, and enhances the overall working efficiency of the cooler.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of fluid cooling devices, and more particularly to a cooler comprising a main body, a first end cap and a second end cap located at opposite ends of the main body and having an inlet and an outlet respectively. The main body contains a plurality of cooling channels. A flow equalization plate is provided between the inlet and outlet in the first end cap, with the perforation density on the flow equalization plate gradually increasing from near the inlet to far from the inlet. The cross-sectional area of ​​the outlet channel in the second end cap gradually increases from near the outlet to far from the outlet. The inlet and outlet are staggered. Spaced-apart baffles are provided between the flow equalization plate and the main body. The flow equalization plate has multiple guide plates with a centrally divergent distribution facing the inlet. This application achieves the technical effect of uniform fluid distribution and improved cooling efficiency and effectiveness.
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Description

Technical Field

[0001] This application relates to the field of fluid cooling devices, and more particularly to a cooler. Background Technology

[0002] Coolers are widely used in numerous fields such as industrial production, energy utilization, and heat dissipation for electronic equipment. With continuous technological advancements, the performance requirements for coolers are becoming increasingly stringent. Efficient and stable cooling is crucial for ensuring the normal operation of equipment and improving energy efficiency. Advances in cooling technology not only help improve product quality and production efficiency but also reduce energy consumption and production costs to some extent. Therefore, research and improvement of cooler-related technologies have always been a key focus in the industry.

[0003] In the field of coolers, air cooling and water cooling are commonly used to achieve cooling functions. Coolers typically have an inlet, an outlet, and several cooling channels. Air cooling uses airflow to carry away heat, allowing air to exchange heat with the medium being cooled as it flows through the cooling channels; water cooling, on the other hand, uses the cooling capacity of water to remove heat.

[0004] However, the common coolers currently available have obvious defects: because the cooler is usually designed to be square and the diameter of the inlet and outlet is limited, some cooling channels are closer to the inlet or outlet, while others are farther away. This results in higher flow rates in the cooling channels closer to the inlet and lower flow rates in the channels farther away from the inlet, which in turn leads to uneven overall working efficiency of the cooler and seriously affects the improvement of cooling efficiency. Utility Model Content

[0005] This application provides a cooler that can homogenize the overall airflow distribution, improve the gas flow field distribution inside the cooler, and optimize the cooling effect. The technical solution adopted is as follows:

[0006] A cooler includes a main body, a first end cap, a second end cap, and a flow equalization plate, wherein the first end cap and the second end cap are located at opposite ends of the main body; the first end cap is provided with an inlet, and the second end cap is provided with an outlet; the main body has a plurality of cooling channels arranged from the inlet to the outlet.

[0007] The flow equalization plate is disposed inside the first end cap and located between the inlet and the outlet; the flow equalization plate has a number of through holes, and the opening density of the through holes gradually increases from the position closer to the inlet to the position farther away from the inlet.

[0008] By adopting the above technical solution, the orifice ratio changes with the location, achieving a uniform flow effect. On the surface of the flow equalization plate near the inlet, the holes are sparse and few in number, resulting in relatively poor airflow. On the surface of the flow equalization plate far from the inlet, the holes are densely packed, allowing for smooth airflow. This ensures that the flow rate of the cooling channels near and far from the inlet is roughly consistent, thereby homogenizing the overall airflow distribution.

[0009] Preferably, an outlet channel is formed inside the second end cap, and the cross-sectional area of ​​the outlet channel gradually increases from near the outlet to far away from the outlet.

[0010] By adopting the above technical solution, the flow area at one end of the outlet channel is larger and the flow area at the other end is smaller. The flow rate is larger at the larger flow area and smaller at the smaller flow area. The outlet is set on the side with the smaller flow area, which can balance the pressure of the internal fluid, thereby improving the flow field distribution of the fluid inside the cooler and optimizing the cooling effect.

[0011] Preferably, the import and export are staggered.

[0012] By adopting the above technical solution, it is possible to help the fluid flow to the cooling channel away from the inlet, improve the uniformity of gas flow inside the cooler, and prevent the fluid from passing directly through the inlet and outlet.

[0013] Preferably, a plurality of partitions are provided between the flow equalization plate and the main body, and the partitions are distributed at intervals along the direction from near the inlet to far away from the inlet; one side of the partition is connected to the side wall of the flow equalization plate, and the other end is connected to the main body.

[0014] By adopting the above technical solutions, the baffle can play a corresponding structural connection and separation role, and together with the flow equalization plate, it can achieve the functions of uniform overall airflow distribution, improve the gas flow field distribution inside the cooler, and optimize the cooling effect of the cooler.

[0015] Preferably, a guide plate is provided on the side of the flow equalization plate facing the inlet, and the guide plate is used to guide the fluid.

[0016] By adopting the above technical solution, the guide plate can guide the fluid, further optimize the fluid flow in the cooler, and improve the gas flow field distribution inside the cooler.

[0017] Preferably, multiple guide vanes are provided, and they are distributed in a radiating pattern from the center, with the radiating centers of the multiple guide vanes facing the inlet.

[0018] By adopting the above technical solution, multiple guide plates with a central divergent distribution and the divergent center facing the inlet are set on the flow equalization plate. Combined with the gradually increasing density of through holes on the flow equalization plate from near the inlet to far away from the inlet, and several cooling channels inside the main body from the inlet to the outlet, the fluid can be effectively guided, further homogenizing the overall airflow distribution, improving the gas flow field distribution inside the cooler, and optimizing the cooling effect of the cooler.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The opening density of the through holes on the flow equalization plate gradually increases from the position near the inlet to the position far away from the inlet, which can achieve the effect of flow equalization, uniformize the overall airflow distribution, improve the gas flow field distribution inside the cooler, and optimize the cooling effect;

[0021] 2. The cross-sectional area of ​​the outlet channel inside the second head gradually increases from near the outlet to far away from the outlet, which can make the pressure at different positions on the outlet side more reasonable, further affecting the flow field uniformity and improving the overall working efficiency of the cooler.

[0022] 3. This solves the problem of uneven overall working efficiency caused by the high flow rate of the cooling channel near the inlet and the low flow rate of the channel far from the inlet in existing coolers, thus improving the cooling efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cooler structure in an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the flow equalization plate in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the flow equalization plate and the flow guide plate in the embodiments of this application.

[0026] The following are labels in the attached diagram: 1. Main body; 2. First end cap; 3. Second end cap; 31. Outlet channel; 4. Flow equalization plate; 41. Through hole; 42. Baffle plate; 43. Guide plate; 5. Inlet; 6. Outlet. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] The cooler provided in this application embodiment refers to... Figure 1The system includes a main body 1, a first end cap 2, a second end cap 3, and a flow equalization plate 4. The first end cap 2 and the second end cap 3 are respectively installed at both ends of the main body 1. The first end cap 2 has an inlet 5, and the second end cap 3 has an outlet 6. Several cooling channels 11 are arranged inside the main body 1 from the inlet 5 to the outlet 6. The flow equalization plate 4 is installed inside the first end cap 2 and is located between the inlet 5 and the main body 1. This layout allows the fluid to enter from the inlet 5, flow through the cooling channels 11, and then flow out from the outlet 6. The flow equalization plate 4 can perform flow equalization treatment on the fluid, ensuring uniform fluid distribution inside the cooler and improving cooling efficiency.

[0029] Reference Figure 1 and Figure 2 Specifically, the flow equalization plate 4 has several through holes 41, and the density of the through holes 41 gradually increases from the position near the inlet 5 to the position away from the inlet 5. The flow equalization plate 4 is usually made of metal, such as stainless steel, which has good strength and corrosion resistance. Its shape is generally flat and can be adapted according to the internal space of the first end cap 2. The through holes 41 near the inlet 5 can be circular and sparsely distributed, or the through holes 41 can be designed as square or elliptical shapes, which can also achieve the effect of flow equalization. With the difference in position, the opening ratio changes, thereby achieving the effect of flow equalization. On the surface of the flow equalization plate 4 near the inlet 5, the holes are sparsely opened, and the air flow is relatively poor. On the surface of the flow equalization plate 4 away from the inlet 5, the holes are densely opened, and the air flow is smooth, thus uniformizing the overall airflow distribution.

[0030] Furthermore, the main body 1 is typically rectangular or cylindrical in shape, and the internal cooling channels 11 can be straight tubes. The inner walls of the cooling channels 11 can be smoothed to reduce fluid flow resistance. The number of cooling channels 11 can be adjusted according to the size of the cooler and cooling requirements; for example, a small cooler may have 10 cooling channels 11, while a large cooler may have 50 or even more.

[0031] Specifically, the first end cap 2 and the second end cap 3 serve to seal both ends of the main body 1, and are respectively provided with an inlet 5 and an outlet 6. The first end cap 2 and the second end cap 3 are made of the same material as the main body 1, generally aluminum alloy. Their shapes match the ends of the main body 1; if the main body 1 is cylindrical, then the first end cap 2 and the second end cap 3 are circular end caps. The inlet 5 and the outlet 6 are usually circular in shape, and their size is determined according to the flow rate and velocity of the fluid. A funnel-shaped structure can be provided at the inlet 5 to facilitate fluid entry; a constricting structure can be provided at the outlet 6 to increase the outflow velocity of the fluid.

[0032] Fluid enters the first end cap 2 from inlet 5. As it passes through the flow equalization plate 4, the change in the density of the through holes 41 on the plate adjusts the fluid velocity and flow rate, allowing it to uniformly enter the cooling channels 11 inside the main body 1. Within the cooling channels 11, the fluid exchanges heat with the main body 1, achieving the cooling function. Finally, the fluid flows out from outlet 6. This structural design effectively improves the gas flow field distribution inside the cooler, optimizes the cooling effect, solves the problem of uneven flow in the cooling channels 11 near and far from inlet 5 in traditional coolers, and improves the overall cooling efficiency.

[0033] The second end cap 3 forms an outlet channel 31 inside, and the cross-sectional area of ​​the outlet channel 31 gradually increases from near the outlet 6 to far away from the outlet 6. The outlet channel 31 can be welded from metal plates, and the material is also stainless steel. Its shape is similar to a truncated cone, with the larger end close to the main body 1 and the smaller end close to the outlet 6.

[0034] The different positions of outlet 6 will result in different pressures at outlet 6, thus affecting the uniformity of the flow field. The cross-sectional area of ​​outlet channel 31 is designed to gradually increase from near to far from outlet 6, with smaller areas for lower flow rates and larger areas for higher flow rates. Outlet 6 is positioned on the side with the smaller flow area. This makes the pressure at outlet 6 more uniform, further optimizing the flow field uniformity and improving the overall cooling efficiency of the cooler.

[0035] The inlet 5 and outlet 6 are staggered. The inlet 5 can be located at one edge of the first end cap 2, while the outlet 6 is located at the opposite edge of the second end cap 3.

[0036] The staggered arrangement of inlet 5 and outlet 6 can change the flow path of the fluid inside the cooler, preventing the fluid from flowing directly from inlet 5 to outlet 6, increasing the residence time of the fluid in the cooling channel 11, and enabling the fluid to exchange heat with the cooling channel 11 more fully, thereby improving the cooling effect.

[0037] A plurality of baffles 42 are provided between the flow equalization plate 4 and the main body 1, and the baffles 42 are distributed at intervals along the direction from near the inlet 5 to away from the inlet 5; one side of the baffle 42 is connected to the side wall of the flow equalization plate 4, and the other end is connected to the main body 1. The baffles 42 are usually made of thin metal sheets, such as aluminum sheets, and have a certain strength and flexibility. The shape of the baffles 42 is generally rectangular, and its length and width are designed according to the space between the flow equalization plate 4 and the main body 1.

[0038] The baffle 42 can further guide the flow direction of the fluid, allowing the fluid to enter the cooling channel 11 in a more orderly manner, avoiding turbulence between the flow equalization plate 4 and the main body 1, improving the flow equalization effect, and thus improving the cooling efficiency of the cooler.

[0039] Reference Figure 3 Furthermore, in this embodiment, a guide plate 43 can be added to the side of the flow equalization plate 4 facing the inlet 5. The guide plate 43 is used to guide the fluid. Multiple guide plates 43 are provided and distributed radiating from the center, with the radiating centers of the multiple guide plates 43 facing the inlet 5. The guide plates 43 can be made of plastic or metal, such as polypropylene or stainless steel. They are plate-shaped, radiating from the center outwards, similar to the shape of flower petals.

[0040] The guide plate 43 can guide the incoming fluid and distribute the fluid evenly onto the flow equalization plate 4, preventing the fluid from concentrating in a certain area, further improving the flow equalization effect, and ensuring that the fluid distribution in the cooler is uniform.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooler, characterized in that: It includes a main body (1), a first end cap (2), a second end cap (3) and a flow equalization plate (4). The first end cap (2) and the second end cap (3) are located at the two ends of the main body (1), respectively. The first end cap (2) is provided with an inlet (5) and the second end cap (3) is provided with an outlet (6). The main body (1) has a plurality of cooling channels (11) in the direction from the inlet (5) to the outlet (6). The flow equalization plate (4) is disposed inside the first end cap (2) and located between the inlet (5) and the outlet (6); the flow equalization plate (4) is provided with a number of through holes (41), and the opening density of the through holes (41) gradually increases from the position close to the inlet (5) to the position far away from the inlet (5).

2. The cooler according to claim 1, characterized in that: An outlet channel (31) is formed inside the second end cap (3), and the cross-sectional area of ​​the outlet channel (31) gradually increases from near the outlet (6) to far away from the outlet (6).

3. The cooler according to claim 1, characterized in that: The import (5) and export (6) are set in a staggered manner.

4. The cooler according to claim 1, characterized in that: A plurality of partitions (42) are provided between the flow equalization plate (4) and the main body (1). The partitions (42) are distributed at intervals along the direction from near the inlet (5) to away from the inlet (5). One side of the partition (42) is connected to the side wall of the flow equalization plate (4), and the other end is connected to the main body (1).

5. The cooler according to claim 1, characterized in that: The flow equalization plate (4) is provided with a flow guide plate (43) on the side facing the inlet (5), and the flow guide plate (43) is used to guide the fluid.

6. The cooler according to claim 5, characterized in that: Multiple guide plates (43) are provided and are distributed in a radiating pattern, with the radiating center of the multiple guide plates (43) facing the inlet (5).