Radial base plate structure suitable for spaceflight cold plate

Abstract

The utility model belongs to the technical field of spaceflight cold plate equipment, and relates to a radial base plate structure suitable for a spaceflight cold plate. Comprising a connecting panel, a fan-shaped column table, a rectangular column table and an entrance and exit channel which are integrally formed. The connecting panel takes the radial direction of the inlet and outlet channel as a boundary and is of a semicircular structure concentric with the inlet and outlet channel towards the side of the cold plate main body; the other side of the connecting panel is of a rectangular structure. The plurality of fan-shaped column tables are distributed in a fan-shaped array along a circumferential array towards the side of the cold plate main body by taking the radial direction of the inlet and outlet channel as a boundary; the rectangular column tables are distributed in a rectangular array by taking the radial direction of the inlet and outlet channel as a boundary and back on to the cold plate main body side; and the fan-shaped column platform and the rectangular column platform have the same height. The whole cold plate can be improved in the two aspects of pressure loss control and overall flow field distribution, and therefore the purposes of optimizing the pressure loss of the cold plate and enhancing the heat dissipation capacity by improving the flow field distribution are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of aerospace cold plate equipment technology, and relates to a new type of pad structure, specifically a pad that optimizes the internal flow field of the cold plate and reduces pressure drop loss. Background Technology

[0002] With the development of the aerospace field, the integration of high-power equipment in the aerospace field is becoming higher and higher. Correspondingly, the requirements for the number of supporting cold plates and the heat dissipation area per unit volume are becoming higher and higher. Therefore, under the premise of limited pump capacity, the need to reasonably reduce the pressure drop loss of cold plates and optimize the heat dissipation capacity of cold plates by improving the flow field structure inside the cold plates is becoming increasingly obvious.

[0003] The cooling medium enters the interior of the aerospace cold plate through the inlet pipe joint. After being diverted by the gasket, it enters the inner cavity of the cold plate formed by channels or fins, absorbing heat from the surface heat source. The medium is then collected by the gasket and finally flows out through the outlet pipe joint, carrying away the heat. Aerospace cold plates are mostly multi-layer welded metal plate structures. Due to the limitations of the cold plate structure and manufacturing process, a gasket structure is required at the connection between the inlet / outlet pipe joints and the cold plate cavity. The gasket serves to bear the clamping force of the joint and to divert the flow.

[0004] The aerospace cold plate pad consists of multiple pillars, connecting panels and corresponding positioning devices. The multiple pillars have the functions of conducting and diverting the cooling medium and bearing the clamping force. The reasonable distribution of the multiple pillars can withstand the pressure inside the cold plate cavity.

[0005] Currently, most aerospace cold-plate pads adopt a rectangular structure, with the pad itself being rectangular and the columns being square or rectangular, arranged in a rectangular array. This structure is simple to manufacture, but there is room for optimization in pressure loss control and overall flow field distribution.

[0006] This invention proposes a radial pad structure suitable for aerospace cold plates. Under the premise of considering the feasibility of the process, it can improve the overall cold plate in terms of both pressure loss control and overall flow field distribution, thereby achieving the purpose of optimizing the pressure loss of the cold plate and enhancing the heat dissipation capacity by improving the flow field distribution. Summary of the Invention

[0007] The purpose of this invention is to provide a radial pad structure suitable for aerospace cold plates. Under the premise of considering the feasibility of the process, it can improve the overall cold plate in terms of both pressure loss control and overall flow field distribution, thereby achieving the purpose of optimizing the pressure loss of the cold plate and enhancing the heat dissipation capacity by improving the flow field distribution.

[0008] The technical solution of this utility model:

[0009] A radial pad structure suitable for aerospace cold plates includes an integrally formed connecting panel 1, fan-shaped pillars 2, rectangular pillars 3, and inlet / outlet channels 4. The connecting panel 1 has a semi-circular structure concentric with the inlet / outlet channels 4 on the side facing the main body of the cold plate, with the other side of the connecting panel 1 having a rectangular structure. Several fan-shaped pillars 2 are arranged in a fan-shaped array along the circumferential direction, with the inlet / outlet channels on the side facing the main body of the cold plate, and several rectangular pillars 3 are arranged in a rectangular array away from the main body of the cold plate, with the inlet / outlet channels on the radial direction. All fan-shaped pillars 2 and rectangular pillars 3 are of equal height.

[0010] The flow channels formed by several fan-shaped columns 2 are divided into radially uniform radial flow channels with the inlet and outlet channels 4 as the center, with the radial direction of the inlet and outlet channels as the boundary.

[0011] The flow channel formed by the fan-shaped column 2 is divided into multiple concentric circles evenly radially distributed with the center of the inlet and outlet channel 4 as the center.

[0012] The rectangular column 3, with the inlet and outlet channels as the radial boundary, divides the pad plate diversion channel into a uniform grid-shaped flow channel on the side facing away from the main body of the cold plate.

[0013] The connecting panel 1 is 1mm to 2mm thick.

[0014] The width of the channel formed between the columns 2 is 3mm to 5mm.

[0015] The width of the radially uniform radial flow channel is 3mm to 5mm.

[0016] The width of the multi-layered concentrically distributed flow channels is 3mm~5mm.

[0017] The fan-shaped column base 2 has a width of 0.2mm to 4mm and a height of 1mm to 6mm.

[0018] When the width of the fan-shaped column 2 exceeds 4mm, a new radial flow channel will be set outward from the fan-shaped column 2. The new flow channel is the same width as the original radially uniform flow channel and is located on the angular center line of the two adjacent channels.

[0019] The inlet / outlet channel 4 is consistent with the size of the inlet / outlet connector.

[0020] The preferred connecting panel 1 is 1.5mm thick.

[0021] The preferred fan-shaped column base 2 and rectangular column base 3 are 3.5mm high.

[0022] The preferred fan-shaped column 2 forms a channel with a radially radiating channel width of 3mm, a circumferential channel width of 3mm, and a divergence angle of 7.5°.

[0023] The preferred rectangular column base 3 is 3mm long and 2.5mm wide.

[0024] The preferred channel width formed between the two rectangular columns 3 is 3mm.

[0025] The preferred import / export channel 4 is circular.

[0026] The beneficial effects of this utility model are:

[0027] 1. Because the flow channel width of this pad structure is the same on the side facing the main body of the cold plate and is uniformly distributed radially and circumferentially, it fits the flow field of the cooling medium entering the cold plate cavity and freely diffusing, so the cold plate as a whole can obtain better pressure loss.

[0028] 2. Because the flow channel width of this pad structure is the same on the side facing the main body of the cold plate and is uniformly distributed radially and circumferentially, it fits the flow field of the cooling medium freely diffusing into the cold plate cavity, which can make the cooling medium obtain a more uniform flow distribution in the heat dissipation area, thereby improving the overall heat dissipation capacity of the cold plate.

[0029] 3. Since the flow channels of this pad are all controlled within 5mm×5mm, the gaps are small, resulting in outstanding pressure resistance after welding and excellent design and manufacturability.

[0030] 4. Since the flow channels of this pad are all controlled within 5mm×5mm, the column distribution density is reasonable and the stress is uniform, so it can withstand the clamping force of the cold plate joint and the cover plate during brazing, and has excellent processability.

[0031] 5. Since the columns of this base plate structure are all at the same height, that is, the welding interface is at the same height, the welding quality of this part is reliable and the processability is excellent.

[0032] 6. Since the thickness of the connecting panel of this pad structure is set to 1mm~2mm, and the flow channel is set to circumferential and radial, it can be processed using mature technology, resulting in excellent economic efficiency. Attached Figure Description

[0033] Figure 1 This is the front view of the present invention;

[0034] Figure 2 This is a top view of the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of this utility model;

[0036] Figure 4 This is a schematic diagram of the existing pad structure.

[0037] Among them, 1 is the connecting panel, 2 is the fan-shaped column, 3 is the rectangular column, and 4 is the entrance and exit channel. Detailed Implementation

[0038] The invention will now be described in further detail with reference to the accompanying drawings:

[0039] like Figure 1 , Figure 2 As shown, this utility model is a radial pad structure suitable for aerospace cold plates, including a connecting panel 1, a fan-shaped column base 2, a rectangular column base 3, and an inlet / outlet channel 4; the lower surface of the connecting panel 1 is connected to the fan-shaped column base 2 and the rectangular column base 3, and the inlet / outlet channel 4 passes through the panel 1, the fan-shaped column base 2, and the rectangular column base 3. The panel 1 and the fan-shaped column base 2 are concentrically distributed with the inlet / outlet channel 4.

[0040] The fan-shaped columns 2 form flow channels of uniform width and are distributed radially and circumferentially. This conforms to the flow field where the cooling medium freely diffuses into the cold plate cavity, thus allowing the cold plate as a whole to achieve better pressure loss.

[0041] The fan-shaped columns 2 form flow channels of uniform width and are evenly distributed radially and circumferentially. This conforms to the flow field where the cooling medium freely diffuses into the cold plate cavity, allowing for a more uniform flow distribution of the cooling medium in the heat dissipation area, thereby improving the overall heat dissipation capacity of the cold plate.

[0042] In this pad structure, the flow channels formed by the fan-shaped column base 2 and the rectangular column base 3 are all controlled within 5mm×5mm, with small gaps. Therefore, after welding, the pressure resistance is outstanding and the design processability is excellent.

[0043] In this pad structure, the flow channels formed by the fan-shaped column base 2 and the rectangular column base 3 are all controlled within 5mm×5mm. The column base distribution density is reasonable and the force is uniform. Therefore, it can withstand the clamping force at the cold plate joint and the cover plate during brazing, and has excellent processability.

[0044] In this pad structure, the fan-shaped column base 2 and the rectangular column base 3 are of equal height, that is, the welding interface is of equal height. Therefore, the welding quality of this part is reliable and the processability is excellent.

[0045] In this pad structure, the thickness of the connecting panel 1 is set to 1mm~2mm, and the flow channel is set to circumferential and radial shapes, both of which can be processed using mature technology, resulting in excellent economic efficiency.

[0046] In one possible embodiment, the preferred connecting panel 1 is 1.5 mm thick, the preferred fan-shaped column 2 and rectangular column 3 are 3.5 mm high, the channel formed by the preferred fan-shaped column 2 has a radially radiating channel width of 3 mm, a circumferential channel width of 3 mm, and a divergence angle of 7.5°, the preferred rectangular column 3 is 3 mm long and 2.5 mm wide, and the channel formed by the preferred rectangular column 3 is 3 mm wide. The preferred inlet and outlet channels are circular.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A radial pad structure suitable for aerospace cold plates, characterized in that, It includes an integrally formed connecting panel, fan-shaped columns, rectangular columns, and inlet / outlet channels; the connecting panel has a semi-circular structure concentric with the inlet / outlet channel on the side facing the main body of the cold plate, with the radial boundary of the inlet / outlet channel; the other side of the connecting panel has a rectangular structure; several fan-shaped columns are arranged in a fan-shaped array along the circumferential direction, with the radial boundary of the inlet / outlet channel, facing the main body of the cold plate; several rectangular columns are arranged in a rectangular array away from the main body of the cold plate, with the radial boundary of the inlet / outlet channel; all the fan-shaped columns and rectangular columns are of equal height.

2. The structure as described in claim 1, characterized in that, The flow channel formed by several fan-shaped columns is divided into radially uniform radial flow channels with the inlet and outlet channels as the boundary, and the channel facing the cold plate body is divided into the inlet and outlet channels as the center of the circle.

3. The structure as described in claim 2, characterized in that, The flow channel formed by the fan-shaped column is divided into multiple concentric circles that are evenly distributed radially with the center of the inlet and outlet channels as the center.

4. The structure as described in claim 3, characterized in that, The rectangular column base, with the radial boundary of the inlet and outlet channels, divides the pad plate diversion channel into a uniform grid-shaped flow channel on the side facing away from the main body of the cold plate.

5. The structure as described in claim 4, characterized in that, The connecting panel is 1mm to 2mm thick.

6. The structure as described in claim 5, characterized in that, The width of the passageway formed between the columns is 3mm to 5mm.

7. The structure as described in claim 6, characterized in that, The width of the radially uniform radial flow channel is 3mm to 5mm.

8. The structure as described in claim 7, characterized in that, The width of the multi-layered concentrically distributed flow channels is 3mm to 5mm.

9. The structure as described in claim 8, characterized in that, The width of the fan-shaped column base is 0.2mm to 4mm, and the height is 1mm to 6mm.

10. The structure as described in claim 9, characterized in that, When the width of the fan-shaped column exceeds 4mm, a new radial flow channel will be set outward from the fan-shaped column of this layer. The new flow channel is the same width as the original radially uniform flow channel and is located on the angular center line of two adjacent channels.

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