A water cooling plate

Abstract

The application discloses a water cooling plate and relates to the technical field of water cooling. The water cooling plate comprises a main frame which is a central symmetrical structure, and a mounting hole is arranged in the center of the main frame; a cooling box is arranged on the main frame, the cooling box is arranged around the main frame and is symmetrically arranged, the cooling box is connected with a cooling pipe, and the cooling pipe comprises an inlet and an outlet; the cooling box comprises a box body connected with the main frame, a flow guide member is arranged in the box body, a labyrinth flow channel is formed between the flow guide member and the box body, and an inlet hole and an outlet hole which are in communication with the cooling pipe are formed in the box body. The application can improve the heat dissipation capacity on the basis of guaranteeing dynamic balance as much as possible.

Description

Technical Field

[0001] This application relates to the field of water cooling technology, and in particular to a water-cooled plate. Background Technology

[0002] Water-cooled plates are the core heat dissipation components of medical device rotary tables. They are mainly used in medical imaging or treatment equipment that requires dynamic rotation, such as CT scanner rotating gantry, C-arm rotating gantry, and radiotherapy equipment treatment rotating table. They are generally installed on the axis of the medical device and are located in a closed and narrow space, rotating 360° at high speed with the rotary table, so as to directly dissipate heat from core heat-generating components such as X-ray tubes, high-voltage generators, and radio frequency power modules.

[0003] Typically, water-cooled plates in the medical field consist of an aluminum alloy main frame and auxiliary structures. The aluminum alloy main frame is primarily used to ensure structural strength, maintain lightweight design, and meet the requirement of non-magnetic operation. The auxiliary structures, in addition to being non-magnetic, also possess high thermal conductivity, thus primarily serving to hold the cooling water. In actual installation, the aluminum alloy main frame is axially connected to the medical device, while the auxiliary structures directly or indirectly contact the core heat-generating components for heat dissipation.

[0004] In the existing technology, the aluminum alloy main frame of the water-cooled plate in this field is usually a centrally symmetrical structure based on the requirement of dynamic balance. It is mostly a conventional square or round shape, while the auxiliary structure generally includes straight pipes, which are mostly arranged in parallel on the aluminum alloy main frame or the straight pipes are inserted into the frame.

[0005] Regarding the above-mentioned solutions, on the one hand, the linear arrangement of one or more straight pipes means that their weight is concentrated in a localized area of ​​the aluminum alloy frame. This can easily cause the center of gravity of the water-cooled plate to deviate excessively from the rotation center of the rotary table. When the rotary table rotates at high speed, it will generate huge centrifugal forces and irregular vibrations, which not only reduces the operational accuracy of the equipment but also exacerbates fatigue wear at the joints and easily leads to coolant leakage. On the other hand, water flows in a straight line within the straight pipes, resulting in a short heat exchange path, insufficient contact time between the water and the straight pipes, and inadequate heat exchange. Furthermore, the heat dissipation area of ​​the straight pipes is limited by the length and diameter of the cooling pipes. Increasing the heat dissipation area requires increasing the number of straight pipes, which further exacerbates the problem of uneven weight distribution. Summary of the Invention

[0006] In order to improve heat dissipation capacity while ensuring dynamic balance as much as possible, this application provides a water-cooled plate.

[0007] The water-cooled plate provided in this application adopts the following technical solution: A water-cooled plate includes a main frame, which has a centrally symmetrical structure and a mounting hole at its center; a cooling box is provided on the main frame, which is arranged around the main frame, and the cooling box is connected to a cooling pipe, which includes an inlet and an outlet. The cooling box includes a box body connected to the main frame. A flow guide is provided inside the box body, and a labyrinth flow channel is formed between the flow guide and the box body. The box body has an inlet hole and an outlet hole that communicate with the cooling pipe.

[0008] By adopting the above technical solution, coolant is injected into the cooling pipe through the inlet. The coolant will reach the cooling box, pass through the labyrinth channel, and be discharged from the outlet. When the core heating component of the medical device is in direct or indirect contact with the cooling box so that heat is conducted to the cooling box, the flow of coolant can continuously remove the heat from the cooling box to cool the core heating component.

[0009] The main frame adopts a centrally symmetrical structure, and the surrounding cooling boxes can make the overall mass of the water-cooled plate evenly distributed along the center of rotation. This can effectively avoid the center of mass shift and thus ensure the dynamic balance of the rotary table at high speed. The above design can reduce centrifugal force and irregular vibration, thereby reducing fatigue wear at the connection and the risk of coolant leakage. The labyrinth flow channel can extend the heat exchange path of the coolant and increase the contact time and contact area between the coolant and the cooling box to improve heat exchange efficiency. This design can improve cooling capacity while ensuring dynamic balance as much as possible.

[0010] Preferably, the flow guide includes multiple flow guide plates connected to the housing, the flow guide plates are arranged along the axial direction of the mounting hole, and the multiple flow guide plates are staggered along the circumferential direction of the mounting hole.

[0011] By adopting the above technical solution, the staggered guide plates arranged along the axis of the mounting hole can accurately form a serpentine labyrinth flow channel in the box. The coolant will repeatedly flow back and forth along the preset path, which can significantly extend the contact time between the heat exchange path and the liquid and solid, avoid short-circuit flow of the coolant, and ensure sufficient heat exchange. At the same time, the arrangement of the guide plates along the rotation axis is highly compatible with the rotation condition and will not interfere with the flow of coolant due to centrifugal force.

[0012] Preferably, the end of the box body closer to the center of the main frame is the first end, and the end of the box body farther from the center of the main frame is the second end, with the two ends of the guide plate connected to the first end and the second end respectively.

[0013] By adopting the above technical solution, the deflector plate transfers the centrifugal force during rotation from the second end, which is under greater load, to the first end. The deflector plate can disperse the force on the periphery of the box, thereby preventing the box from warping, deforming, and bulging due to uneven force on both ends.

[0014] Preferably, the labyrinth flow channel is further provided with a plurality of connecting columns, which are arranged along the setting direction of the labyrinth flow channel; each connecting column is connected to a first end and a second end at both ends, and the connecting column has thermal conductivity.

[0015] By adopting the above technical solution, the connecting column can further offset the internal pressure impact of the high-pressure coolant and disperse the rotational centrifugal force. The connecting column can prevent the box from bulging, warping or wall deformation as much as possible. As a three-dimensional heat-conducting medium, the connecting column can quickly conduct the heat absorbed by the outer wall of the box to the inside of the flow channel, so that the coolant, the box wall and the connecting column form a three-dimensional multi-faceted heat exchange, which can significantly increase the liquid-solid heat exchange area. In addition, when the box rotates, the coolant flows along the wall due to centrifugal force, and the connecting column can make the flowing coolant locally turbulent, which can avoid the heat exchange dead zone on the box and thus achieve uniform heat distribution throughout the box. When bubbles are generated in the coolant, the connecting column can break the bubbles that move at high speed with the coolant. This design can avoid local impact corrosion caused by the rupture of bubbles on the box wall and protect the integrity of the inner wall.

[0016] Preferably, the cooling pipe includes an inlet pipe and an outlet pipe, both of which are connected to the cooling box. Both the inlet pipe and the outlet pipe extend toward the mounting hole and are connected to a connector.

[0017] By adopting the above technical solution, the water inlet pipe and the water outlet pipe extend towards the mounting hole of the rotation center, so that the weight of the cooling pipe is concentrated in the rotation center area. This can reduce the eccentric torque brought by the cooling pipe and thus ensure the dynamic balance performance of this application as much as possible. The joint is arranged in the closed and narrow installation space of the rotating medical device turntable to avoid interference with other components.

[0018] Preferably, the main frame includes a frame and multiple ribs inside the frame, the multiple ribs are connected to the frame, and a hollow area is formed between the multiple ribs and the frame.

[0019] By adopting the above technical solution, the weight of the main frame is significantly reduced while ensuring the rigidity of the main frame structure and its resistance to rotational centrifugal force, thus achieving a lightweight design. The hollowed-out area provides space for the installation of other precision components in the medical device.

[0020] Preferably, the frame has an installation groove, the cooling box is connected to the installation groove, and a locking frame is detachably connected to the frame, the locking frame pressing and fixing the cooling box to the installation groove.

[0021] By adopting the above technical solution, the detachable design of the locking frame facilitates the rapid assembly of the cooling box and its subsequent disassembly, maintenance, and replacement.

[0022] Preferably, the cooling boxes are provided in multiple ways, and the multiple cooling boxes are arranged along the outer periphery of the frame; the cooling pipe includes a transfer pipe, which is provided between adjacent cooling boxes, and the two ends of the transfer pipe are respectively connected to the liquid inlet and the liquid outlet, and the two ends of the transfer pipe extend into the liquid inlet and the liquid outlet, respectively.

[0023] By adopting the above technical solution, multiple cooling boxes are arranged along the outer periphery of the frame so that the heat dissipation area is distributed along the circumference of the rotation center, which facilitates uniform heat dissipation throughout the entire area. The transfer pipe enables the series connection of adjacent cooling boxes to ensure continuous circulation of coolant. The design of the two ends of the transfer pipe extending into the inlet and outlet holes respectively makes the connection between the pipe and the cooling box an internally inserted sealed connection, which can improve the connection sealing and structural stability between the transfer pipe and the cooling box, and effectively prevent leakage at the connection under high-speed rotation and coolant impact.

[0024] Preferably, the outer perimeter of the frame is a regular polygon.

[0025] In summary, the present invention has at least one of the following beneficial technical effects: 1. Coolant is injected into the cooling pipes through the inlet. The coolant reaches the cooling box, flows through the labyrinth channel, and exits through the outlet. When the core heat-generating components of the medical device are in direct or indirect contact with the cooling box, allowing heat to be conducted to the box, the flow of coolant continuously removes heat from the cooling box, thus cooling the core heat-generating components. The main frame adopts a centrally symmetrical structure, and the surrounding cooling boxes ensure that the overall mass of the water-cooled plate is evenly distributed along the center of rotation. This effectively avoids center of mass shift and maintains dynamic balance during high-speed rotation of the rotary table. This design reduces centrifugal force and irregular vibration, thereby reducing fatigue wear at connections and the risk of coolant leakage. The labyrinth channel extends the heat exchange path of the coolant, increasing the contact time and area between the coolant and the cooling box to improve heat exchange efficiency. This design enhances cooling capacity while maintaining dynamic balance as much as possible. 2. The baffle plate transfers the centrifugal force during rotation from the second end, which is under greater load, to the first end. The baffle plate can disperse the force on the periphery of the box, thus preventing the box from warping, deforming, and bulging due to uneven force on both ends. The connecting column can further offset the internal pressure impact of the high-pressure coolant while dispersing the centrifugal force during rotation. The connecting column can further prevent the box from bulging, warping, or wall deformation. 3. The connecting column, as a three-dimensional heat-conducting medium, can quickly transfer the heat absorbed by the outer wall of the box to the inside of the flow channel, so that the coolant, the box wall, and the connecting column form a three-dimensional multi-faceted heat exchange, which can significantly increase the liquid-solid heat exchange area. Furthermore, when the box rotates, the coolant flows along the wall due to centrifugal force, and the connecting column can make the flowing coolant locally turbulent, which can avoid the formation of heat exchange dead zones on the box and thus achieve uniform heat distribution throughout the box. When bubbles are generated in the coolant, the connecting column can break the bubbles that move at high speed with the coolant. This design can prevent local impact corrosion caused by the rupture of bubbles on the box wall and protect the integrity of the inner wall. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a water-cooled plate in an embodiment of this application; Figure 2 This is a top sectional view of a water-cooled plate; Figure 3 This is a cross-sectional view used to show the cooling box; Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0027] The attached diagram is labeled as follows: 1. Main frame; 11. Mounting hole; 12. Frame; 13. Rib; 14. Hollowed-out area; 15. Mounting groove; 2. Cooling box; 21. Box body; 22. Flow guide; 23. Labyrinth flow channel; 24. Liquid inlet; 25. Liquid outlet; 26. First end; 27. Second end; 28. Flow guide plate; 29. ​​Connecting column; 3. Cooling pipe; 31. Liquid inlet; 32. Liquid outlet; 33. Water inlet pipe section; 34. Water outlet pipe section; 35. Connector; 36. Transfer pipe; 37. Transfer hole; 4. Locking frame. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are 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 limiting this invention.

[0030] This application discloses a water-cooled plate. It can improve the heat dissipation capacity of the core heat-generating components of medical devices while ensuring dynamic balance.

[0031] Reference Figure 1 and Figure 2A water-cooled plate includes a main frame 1, which has a centrally symmetrical structure and a mounting hole 11 in the center of the main frame 1. A cooling box 2 is provided on the main frame 1 and is arranged around the main frame 1. The cooling box 2 is connected to a split cooling pipe 3, which includes an inlet 31 and an outlet 32. The main frame 1 is made of materials such as aluminum alloy or carbon fiber composite material, and the cooling box 2 and cooling pipe 3 are made of materials such as copper.

[0032] After the application is installed on the medical device, the mounting hole 11 is connected to the shaft of the medical device. The core heating component on the medical device will directly or indirectly contact the cooling box 2, and the heat will be conducted to the cooling box 2. At this time, by injecting liquid, such as water, into the liquid inlet 31, the water will reach the cooling box 2 through the cooling pipe 3 and be discharged from the liquid outlet 32 ​​to continuously remove the heat from the cooling box 2, thereby indirectly completing the heat dissipation of the core heating component.

[0033] The main frame 1 adopts a centrally symmetrical structure and is equipped with a cooling box 2 arranged around it, which can make the overall mass of this application as evenly distributed along the center of rotation as possible, effectively avoiding the displacement of the center of mass and thus ensuring the dynamic balance of the medical device rotary table connected to this application when it rotates at high speed.

[0034] Reference Figure 1 and Figure 2 The main frame 1 includes a frame 12 and multiple ribs 13 inside the frame 12. The multiple ribs 13 are connected to the frame 12 in a honeycomb pattern. The frame 12 and the multiple ribs 13 are an integral part. Multiple hollow areas 14 are formed between the multiple ribs 13 and the frame 12.

[0035] The above design significantly reduces the weight of the main frame 1 while ensuring its structural rigidity and resistance to centrifugal force, achieving a lightweight design. The hollowed-out area 14 provides space for the installation of other precision components in the medical device.

[0036] Reference Figure 1 and Figure 2 In this application, the outer perimeter of the frame 12 is a regular polygon; specifically, in this embodiment, the outer perimeter of the frame 12 is a regular hexagon, while in other embodiments, the outer perimeter of the frame 12 may also be a regular quadrilateral, a regular octagon, or a regular decagon, etc.

[0037] Reference Figure 1 and Figure 2Multiple cooling boxes 2 are provided, arranged along the outer periphery of the frame 12. Specifically, there are twelve cooling boxes 2, with two cooling boxes 2 forming a group and fitted onto one end of the frame 12. The cooling pipe 3 includes an inlet pipe section 33, an outlet pipe section 34, and multiple transfer pipes 36. The inlet pipe section 33 and the outlet pipe section 34 are arranged parallel to each other along the diameter direction of the mounting hole 11. Both the inlet pipe section 33 and the outlet pipe section 34 are connected to the cooling box 2. To facilitate water intake, both the inlet pipe section 33 and the outlet pipe section 34 extend towards the mounting hole 11 and are connected to a connector 35. The liquid inlet 31 is one end of the water inlet pipe 33 near the mounting hole 11, and the liquid outlet 32 ​​is one end of the water outlet pipe 34 near the mounting hole 11. The connector 35 includes two transfer holes 37 arranged along the axis of the mounting hole 11. One transfer hole 37 is connected to the liquid inlet 31, and the other transfer hole 37 is connected to the liquid outlet 32. Adjacent cooling boxes 2 are connected through a transfer pipe 36.

[0038] Water is injected into one of the transfer holes 37. The water will reach the cooling box 2 through the water inlet pipe 33. Guided by multiple transfer pipes 36, the water will flow to all the cooling boxes 2 and finally flow out from the other transfer hole 37 through the water outlet pipe 34.

[0039] It should be noted that the adjacent and parallel design of the inlet pipe 33 and the outlet pipe 34 is an adjustment based on actual installation requirements. Subsequently, related components of the medical device, such as the PCB board, will be installed on the rib 13 on the side of the mounting hole 11 away from the connector 35. Therefore, the installation of the inlet pipe 33 and the outlet pipe 34 has little impact on the dynamic balance capability of this application and still meets the design requirements.

[0040] Reference Figure 3 and Figure 4 Taking its cooling box 2 as an example: the frame 12 has an installation groove 15, the cooling box 2 is connected to the installation groove 15 by riveting, and the upper end of the frame 12 is connected to a locking frame 4 by screws, the locking frame 4 presses the cooling box 2 downward and fixes it to the installation groove 15.

[0041] Reference Figure 3 and Figure 4 The cooling box 2 includes a box body 21 riveted to the frame 12. The box body 21 is provided with a flow guide 22. A labyrinth flow channel 23 is formed between the flow guide 22 and the box body 21. The box body 21 has an inlet hole 24 and an outlet hole 25 that are connected to and opposite to the cooling pipe 3.

[0042] Reference Figure 3 and Figure 4 The flow guide 22 includes multiple flow guide plates 28 connected to the housing 21. The flow guide plates 28 are arranged along the axial direction of the mounting hole 11, and the multiple flow guide plates 28 are staggered vertically. A labyrinth flow channel 23 is formed between the multiple flow guide plates 28 and the housing 21. Figure 2The end of the box 21 closest to the center of the main frame 1 is the first end 26, and the end of the box 21 furthest from the center of the main frame 1 is the second end 27. The two ends of the guide plate 28 are fixedly connected to the first end 26 and the second end 27, respectively. Specifically, in order to extend the flow path while ensuring the dynamic balance of the main frame 1 as much as possible, the labyrinth channel 23 is a serpentine channel in this embodiment.

[0043] Reference Figure 4 The maze-like flow channel 23 is also equipped with multiple connecting pillars 29, which are arranged along the direction of the maze-like flow channel 23. The connecting pillars 29 have thermal conductivity and are made of materials such as copper. Figure 2 Each connecting post 29 is fixedly connected to the first end 26 and the second end 27 at both ends, and multiple connecting posts 29 are arranged along the setting direction of the maze flow channel 23.

[0044] When this application rotates, the water entering the cooling box 2 is subjected to centrifugal force. The guide plate 28 transfers the centrifugal force during rotation from the second end 27, which bears a greater load, to the first end 26. The guide plate 28 can disperse the force on the periphery of the box 21, thereby preventing the box 21 from warping, deforming, and bulging due to uneven force at both ends. The multiple connecting columns 29 can further offset the internal pressure impact of the high-pressure coolant while dispersing the rotational centrifugal force. The connecting columns 29 also help to prevent the box 21 from bulging as much as possible. It should be noted that in order to reduce the impact of the amount of water filling in the cooling box 2 and cooling pipe 3 on the overall dynamic balance of this application, it is necessary to ensure that the water flows rapidly in the cooling box 2 and cooling pipe 3, and the water pressure is relatively high.

[0045] In addition, the connecting column 29 serves as a three-dimensional heat conduction medium, which can quickly conduct the heat absorbed by the outer wall of the box 21 to the inside of the flow channel, so that the coolant and the surrounding wall of the box 21 and the connecting column 29 form a three-dimensional multi-faceted heat exchange, which can greatly increase the liquid-solid heat exchange area. When the box 21 rotates, the coolant flows along the wall due to centrifugal force. The connecting column 29 can make the flowing coolant locally turbulent, which can avoid the heat exchange dead zone on the box 21 and thus achieve uniform heat distribution throughout the box 21. When bubbles are generated in the coolant, the connecting column 29 can break the bubbles that move at high speed with the coolant. This design can avoid local impact corrosion caused by the rupture of bubbles on the wall of the housing 21 and protect the integrity of the inner wall.

[0046] Reference Figure 3 and Figure 4 Taking one of its transfer pipes 36 as an example: the two ends of the transfer pipe 36 are respectively connected to the liquid inlet 24 of one of its cooling boxes 2 and the liquid outlet 25 of the adjacent cooling box 2, and the two ends of the transfer pipe 36 extend into the liquid inlet 24 and the liquid outlet 25 respectively.

[0047] The transfer pipe 36 enables the series connection of adjacent cooling boxes 2, thereby ensuring the continuous circulation of coolant. The design of the two ends of the transfer pipe 36 extending into the inlet hole 24 and the outlet hole 25 respectively makes the connection between the pipe and the cooling box 2 an internal insertion sealed connection, which can improve the connection sealing and structural stability between the transfer pipe 36 and the cooling box 2, and effectively prevent leakage at the connection under high-speed rotation and coolant impact.

[0048] The implementation principle of a water-cooled plate in this application embodiment is as follows: Water is injected into one of the transfer holes 37. The water will pass through the water inlet pipe 33 and the liquid inlet hole 24 to reach the cooling box 2. The water will pass through the labyrinth flow channel 23 and flow out from the liquid outlet hole 25. Subsequently, under the guidance of the transfer pipe 36, the water will reach multiple cooling boxes 2 in sequence and reach the water outlet pipe 34. Finally, it will flow out through another transfer hole 37. The flow of water will continuously carry away the heat of the cooling box 2, thus indirectly completing the heat dissipation of the core heat-generating components.

[0049] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A water-cooled plate, characterized in that: Includes a main frame (1), which is a centrally symmetrical structure, and has a mounting hole (11) at its center; a cooling box (2) is provided on the main frame (1), which is arranged around the main frame (1), and the cooling box (2) is connected to a cooling pipe (3), which includes an inlet (31) and an outlet (32); The cooling box (2) includes a box body (21) connected to the main frame (1), a flow guide (22) is provided inside the box body (21), a labyrinth flow channel (23) is formed between the flow guide (22) and the box body (21), and an inlet hole (24) and an outlet hole (25) communicating with the cooling pipe (3) are opened on the box body (21).

2. A water-cooled plate according to claim 1, characterized in that: The flow guide (22) includes a plurality of flow guide plates (28) connected to the housing (21). The flow guide plates (28) are arranged along the axial direction of the mounting hole (11), and the plurality of flow guide plates (28) are staggered along the circumferential direction of the mounting hole (11).

3. A water-cooled plate according to claim 2, characterized in that: The end of the box (21) closest to the center of the main frame (1) is the first end (26), and the end of the box (21) furthest from the center of the main frame (1) is the second end (27). The two ends of the guide plate (28) are respectively connected to the first end (26) and the second end (27).

4. A water-cooled plate according to claim 3, characterized in that: The labyrinth flow channel (23) is also provided with a plurality of connecting columns (29), which are arranged along the setting direction of the labyrinth flow channel (23); each of the connecting columns (29) is connected to a first end (26) and a second end (27) at both ends, and the connecting column (29) has thermal conductivity.

5. A water-cooled plate according to claim 1, characterized in that: The cooling pipe (3) includes an inlet pipe (33) and an outlet pipe (34), both of which are connected to the cooling box (2). Both the inlet pipe (33) and the outlet pipe (34) extend toward the mounting hole (11) and are connected to a connector (35).

6. A water-cooled plate according to claim 5, characterized in that: The main frame (1) includes a frame (12) and multiple ribs (13) inside the frame (12). The multiple ribs (13) are connected to the frame (12), and a hollow area (14) is formed between the multiple ribs (13) and the frame (12).

7. A water-cooled plate according to claim 6, characterized in that: The frame (12) has an installation groove (15) and the cooling box (2) is connected to the installation groove (15). A locking frame (4) is detachably connected to the frame (12) and the locking frame (4) presses and fixes the cooling box (2) to the installation groove (15).

8. A water-cooled plate according to claim 7, characterized in that: The cooling box (2) is provided in multiple ways, and the multiple cooling boxes (2) are arranged along the outer periphery of the frame (12); the cooling pipe (3) includes a transfer pipe (36), the transfer pipe (36) is provided between adjacent cooling boxes (2), the two ends of the transfer pipe (36) are respectively connected to the liquid inlet (24) and the liquid outlet (25), and the two ends of the transfer pipe (36) extend into the liquid inlet (24) and the liquid outlet (25).

9. A water-cooled plate according to claim 6, characterized in that: The outer perimeter of the frame (12) is a regular polygon.

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