Pole-mounted transformer complete equipment with compensation capacitor

Abstract

The invention relates to pole-mounted transformer complete equipment with a compensation capacitor, and relates to the technical field of power equipment, the pole-mounted transformer complete equipment comprises a main body box, a transformer body is arranged in the main body box and filled with insulation cooling liquid, the side face of the main body box is provided with at least one installation box, and side plates and partition plates of the installation boxes are hollow and communicated with the interior of the main body box, so that the insulation cooling liquid flows in; the interior of the installation box is divided into a wiring cavity and a capacitor cavity, the wiring cavity is provided with a circuit breaker, and the capacitor cavity is provided with a capacitor body. The mounting box is provided with a heat dissipation port on the bottom surface of the capacitor cavity, and a deformation memory alloy is arranged at the heat dissipation port; supporting columns are arranged on the side face of the main body box and sleeved with shock absorbers and sliding sleeves. A sealing box door is arranged on one side of the mounting box away from the main box; radiating fins are arranged outside the mounting box and the main body box; a supporting base is arranged in the mounting box. The technical effects of effective heat dissipation and shock absorption, guarantee of stable operation of equipment and convenience in maintenance and repair are achieved.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and in particular to a pole-mounted transformer assembly with a compensation capacitor. Background Technology

[0002] The field of power equipment technology has developed rapidly in recent years. As a crucial component of the power system, pole-mounted transformer systems play a key role in ensuring power supply through their performance and stability. With the continuous growth of electricity demand, higher requirements are being placed on the functionality and reliability of pole-mounted transformer systems. Widely used in urban and rural distribution networks, they effectively convert high-voltage electricity into low-voltage electricity suitable for users, providing stable power support for various electrical devices and playing an irreplaceable role in ensuring electricity supply for both residential and industrial production.

[0003] In related technologies, several methods are typically employed to address heat dissipation and capacitor installation issues in pole-mounted transformer systems. One method involves installing simple heat sinks on the outside of the main enclosure, utilizing their large surface area to increase heat dissipation and achieve a certain level of cooling. Another method is to directly install the capacitors inside the main enclosure, sharing a compartment with the transformer itself, thus simplifying the equipment structure. A third method involves installing a standard mounting box on the main enclosure; however, this mounting box has a relatively simple structure, lacking special internal heat dissipation and connectivity designs, and merely serving as a space for placing capacitors and other components.

[0004] Furthermore, simple heat sinks have limited heat dissipation capabilities and cannot meet the cooling requirements of equipment under high load operation, easily leading to excessively high equipment temperatures and affecting its lifespan and performance. Directly mounting capacitors inside the main enclosure makes the internal space of the enclosure more cramped, hindering component maintenance and repair, and also preventing effective individual cooling of the capacitors, thus reducing their lifespan. Ordinary mounting boxes, lacking a connection design with the main enclosure and a reasonable heat dissipation structure, cannot fully utilize the insulating coolant for heat dissipation, resulting in a poor working environment for components inside the mounting box and making them prone to failure. Summary of the Invention

[0005] The purpose of this application is to overcome the above-mentioned technical problems and provide a complete set of pole-mounted transformer equipment with compensation capacitors.

[0006] A complete set of pole-mounted transformer equipment with compensation capacitor includes a main box, in which the transformer body is installed and filled with insulating coolant, and at least one mounting box is provided on the side of the main box. The side panel of the mounting box has a hollow structure inside, and the hollow structure is connected to the interior of the main box to allow insulating coolant to flow into the interior of the side panel. Inside the mounting box, a partition separates the wiring cavity and the capacitor cavity. The partition has a hollow structure and is connected to the interior of the main box. The mounting box and partition are fixed to the main box by welding. A circuit breaker is installed inside the wiring cavity, and a sealing element is installed on the side wall of the mounting box inside the wiring cavity. A capacitor body is installed inside the capacitor cavity. The capacitor body is connected to the circuit breaker through a wire. The circuit breaker is connected to the transformer body through a wire passing through the sealing element. The mounting box has a heat dissipation vent on the bottom surface of the capacitor cavity. A deformation memory alloy is installed at the heat dissipation vent. When heated, the deformation memory alloy has the characteristic of bending the side closest to the main body box downward to expose the heat dissipation vent, and restoring itself to close the heat dissipation vent when cooled.

[0007] By adopting the above technical solution, a mounting box is set on the side of the main box for installing components such as capacitor bodies; the hollow structure of the mounting box side plate and partition is connected to the interior of the main box, allowing insulating coolant to flow in and cool the interior of the mounting box. The mounting box can also serve as a heat dissipation structure for the main box, reducing the temperature of the insulating coolant; the mounting box and partition are welded and fixed to the main box to ensure structural stability; a circuit breaker is installed in the wiring cavity and connected through a sealing component to ensure circuit connection and sealing effect; the capacitor body is installed in the capacitor cavity and connected to the circuit breaker to achieve reactive power compensation; the mounting box has a heat dissipation vent on the bottom surface of the capacitor cavity and is equipped with a deformation memory alloy, which can automatically open or close the heat dissipation vent according to the temperature to achieve heat dissipation and dust prevention.

[0008] Preferably, the deformation memory alloy has several heat dissipation holes.

[0009] By adopting the above technical solution and opening several heat dissipation holes on the deformation memory alloy, the amount of dust entering the capacitor cavity can be reduced while ensuring the heat dissipation efficiency inside the capacitor cavity.

[0010] Preferably, the side of the main body box is provided with several support columns, the support columns are hollow inside and connected to the inside of the main body box.

[0011] By adopting the above technical solution, a support column with a hollow interior and connected to the interior of the main box is set on the side of the main box, which allows the insulating coolant inside the main box to flow into the support column, increasing the heat dissipation area of ​​the main box and helping to reduce the temperature of the insulating coolant.

[0012] Preferably, a shock absorber and a sliding sleeve are fitted on the support column, and a damping spring is provided between the shock absorber and the sliding sleeve; a first connecting rod is hinged on the sliding sleeve, and a second connecting rod is rotatably connected to the end of the first connecting rod, and the end of the second connecting rod is rotatably connected to the outer surface of the deformation memory alloy.

[0013] By adopting the above technical solution, a shock absorber and a sliding sleeve are fitted on the support column, and a damping spring is set between the shock absorber and the sliding sleeve. The sliding sleeve is rotatably connected to the outer surface of the deformation memory alloy through a hinged first connecting rod and a rotatably connected second connecting rod. This can dissipate heat from the mounting box and the capacitor body, improve the service life of the capacitor body, increase the heat dissipation area of ​​the main box, and reduce the vibration of the transformer body during operation.

[0014] Preferably, a connecting spring is provided between the first connecting rod and the second connecting rod.

[0015] By adopting the above technical solution, a connecting spring is set between the first connecting rod and the second connecting rod. When the deformation memory alloy is heated and opens the heat dissipation port, the connecting spring deforms and compresses. The vibration of the transformer body during operation can cause the second connecting rod to push the deformation memory alloy to swing regularly, cleaning the dust accumulated at the heat dissipation port.

[0016] Preferably, a sealing door is slidably connected to the side of the installation box away from the main box, and a locking element is provided on the sealing door. When the sealing door closes the installation box, the locking element is threaded to the bottom surface of the installation box.

[0017] By adopting the above technical solution, the installation box is slidably connected to the sealed box door on the side away from the main box, and a locking device is installed on the sealed box door. When the sealed box door closes the installation box, the locking device is threaded to the bottom surface of the installation box, which can realize the sealing of the installation box, protect the internal circuit breaker and capacitor body, and prevent external dust, moisture and other factors from entering and affecting their normal operation.

[0018] Preferably, the outer surfaces of the mounting box and the main body box are connected to several heat sinks.

[0019] By adopting the above technical solution, several heat sinks are connected to the outer surfaces of the mounting box and the main body box, which can improve the heat dissipation efficiency of the main body box and the mounting box.

[0020] Preferably, the mounting box is provided with a support base, which has several through holes. The capacitor body is placed on the support base, and the support base abuts against the upper surface of the deformation memory alloy. The support base has a hollow structure inside, and the hollow structure of the support base is connected to the inside of the main box so that the insulating coolant can flow into the inside of the support base.

[0021] By adopting the above technical solution, a support base is set up to place the capacitor body. The through holes on the base can assist in heat dissipation. The base is hollow inside and connected to the main body box to allow insulating coolant to flow in. The bottom surface of the capacitor body can be cooled by a combination of water cooling and air cooling, which can effectively improve the service life of the capacitor body.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The side panels and partitions of the mounting box are hollow and connected to the interior of the main box, allowing the insulating coolant to flow in and cool the interior of the mounting box. At the same time, it serves as a heat dissipation structure for the main box, reducing the temperature of the insulating coolant and improving the heat dissipation efficiency of the main box and the mounting box. 2. The capacitor body is located inside the capacitor cavity, and heat dissipation is achieved through the insulating coolant in the mounting box side plates, partitions and support base, which can effectively improve the service life of the capacitor body. 3. The deformation memory alloy bends when heated to expose the heat dissipation vents, and then returns to its original closed state when cooled. The heat dissipation holes on it are also staggered with the through holes on the support base, which can ensure the heat dissipation efficiency inside the capacitor cavity while preventing external dust from entering the capacitor cavity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is an exploded structural diagram of this application, mainly showing the capacitor body; Figure 3 This is a cross-sectional structural diagram of this application, mainly showing the wiring cavity and capacitor cavity; Figure 4 This is a structural schematic diagram of the present application, mainly illustrating the deformation memory alloy; Figure 5 This is an exploded structural diagram of the present application, mainly showing the supporting base; Figure 6 This is a cross-sectional structural diagram of the present application, mainly showing the limiting groove.

[0024] Figure Descriptions: 1. Pole; 2. Fixing Frame; 3. Distribution Box; 4. Main Box; 5. Capacitor Body; 6. Mounting Box; 7. Heat Sink; 8. Partition; 9. Cable Tray; 10. Capacitor Chamber; 11. Circuit Breaker; 12. Sealing Component; 13. Connecting Plate; 14. Heat Dissipation Vent; 15. Support Base; 16. Through Hole; 17. Connecting Hole; 18. Sliding Groove; 19. Limiting Sliding Groove; 20. Sealed Box Door; 21. Limiting Block; 22. Locking Hole; 23. Locking Screw; 24. Connecting Plate; 25. Rubber Strip; 26. Rubber Clip; 27. Deformation Memory Alloy; 28. Heat Dissipation Hole; 29. ​​Support Column; 30. Vibration Damper; 31. Vibration Damper Spring; 32. Sliding Sleeve; 33. First Connecting Rod; 34. Second Connecting Rod; 35. Connecting Spring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail below.

[0026] A complete set of pole-mounted transformer equipment with compensation capacitor, referring to Figure 1 , Figure 2 The system includes two utility poles 1, with a fixed frame 2 fixedly connected between them. A distribution box 3 is fixedly connected to the lower end of the fixed frame 2, and a main body box 4 is fixedly connected to the upper end of the fixed frame 2. A transformer body is fixedly connected inside the main body box 4, and insulating coolant is injected into the main body box 4. Simultaneously, a capacitor body 5, connected to the transformer body via wires, is installed inside the main body box 4. The integrated design of the capacitor body 5 and the transformer body effectively improves the reactive power compensation response speed of the capacitor body 5.

[0027] Three mounting boxes 6 are welded and fixed to the opposite sides of the main body box 4. Each mounting box 6 has a hollow side panel that communicates with the interior of the main body box 4, allowing the insulating coolant of the main body box 4 to flow into the side panel and thus cool the interior of the mounting box 6. Additionally, the mounting boxes 6 also serve as a heat dissipation structure for the main body box 4, further reducing the temperature of the insulating coolant. Several heat sinks 7 are fixedly connected to the surfaces of the main body box 4 and the mounting boxes 6 to improve their heat dissipation efficiency.

[0028] Reference Figure 2 , Figure 3 A partition 8 is welded and fixed inside the mounting box 6. One side of the partition 8 is connected to the surface of the main body box 4. The inner wall of the partition 8 is hollow and communicates with the inside of the side plates of the main body box 4 and the mounting box 6. In addition, the partition 8 divides the inside of the mounting box 6 into a wiring cavity 9 and a capacitor cavity 10. The capacitor body 5 is located in the capacitor cavity 10, which provides multi-directional heat dissipation for the capacitor body 5, effectively improving the service life of the capacitor body 5.

[0029] A circuit breaker 11 is fixedly connected inside the wiring cavity 9. The circuit breaker 11, together with the partition 8 and the side wall of the mounting box 6, seals the wiring cavity 9. The mounting box 6 has a sealing hole on the side wall where the wiring cavity 9 is located, and a sealing element 12 is welded to the inner wall of the sealing hole. A connecting plate 13, which is connected to the circuit of the circuit breaker 11, is fixedly connected to the lower end face of the partition 8. Two terminals of different polarities are fixedly connected to the connecting plate 13. The capacitor body 5 is connected to the corresponding polarity via wires, thus enabling the circuit between the capacitor body 5 and the circuit breaker 11. Furthermore, the circuit breaker 11 is connected to the transformer body inside the main housing 4 via wires, enabling the circuit between the circuit breaker 11 and the transformer body. The wires on the circuit breaker 11 pass through the sealing element 12, ensuring that the sealing element 12 contacts the surface of the wires. Epoxy resin is applied to the sealing element 12 at the point where the wires pass through. The wires connecting the circuit breaker 11 and the transformer body must be connected before the main housing 4 is filled with insulating coolant.

[0030] Reference Figure 3 , Figure 4 , Figure 5The mounting box 6 has a heat dissipation vent 14 on the bottom surface of the capacitor cavity 10, and a support base 15 is welded and fixed to the inner wall of the mounting box 6 at the heat dissipation vent 14. The support base 15 has several through holes 16 so that the capacitor body 5 is placed on the support base 15. At the same time, the support base 15 has a hollow structure inside, and the hollow structure of the support base 15 is connected to the side plate of the main box 4 and the mounting box 6, so that the insulating coolant flows into the support base 15 and performs a combination of water cooling and air cooling to dissipate heat on the bottom surface of the capacitor body 5.

[0031] Reference Figure 2 , Figure 3 , Figure 6 The support base 15 has a connecting hole 17 on the side away from the main body box 4, and the mounting box 6 has a sliding groove 18 on the side away from the main body box 4, with a limiting groove 19 inside the sliding groove 18. A sealing box door 20 is slidably connected to the mounting box 6 within the sliding groove 18. Limiting blocks 21 are fixedly connected to both sides of the sealing box door 20, extending into the limiting groove 19, allowing the sealing box door 20 to slide up and down within the mounting box 6 to close or open the mounting box 6. A locking hole 22 is provided on the sealing box door 20. When the sealing box door 20 is closed, the locking hole 22 is coaxially aligned with the connecting hole 17. A locking screw 23 passes through the locking hole 22 and the connecting hole 17, and is threadedly connected to the inner walls of the locking hole 22 and the connecting hole 17, thereby locking the sealing box door 20 in place.

[0032] Reference Figure 3 , Figure 4 , Figure 5 A connecting plate 24 is fixedly connected to the side of the support base 15 away from the main body box 4. The bottom surface of the connecting plate 24 is flush with the bottom surface of the mounting box 6. Rubber strips 25 are fixedly connected to the side plates on both sides of the mounting box 6, and rubber clips 26 are fixedly connected to the opposite side of the two rubber strips 25. In addition, a deformation memory alloy 27 is fixedly connected to the side of the connecting plate 24 facing the main body box 4. Under normal conditions, the deformation memory alloy 27 abuts against the lower end face of the support base 15, and the periphery of the deformation memory alloy 27 abuts against the rubber strips 25. The bottom surface of the deformation memory alloy 27 abuts against the rubber clips 26, thereby sealing the bottom surface of the support base 15. When the deformation memory alloy 27 is heated, its side near the main body box 4 bends downward to expose the heat dissipation vent 14 and the support base 15 located in the heat dissipation vent 14. When cooled, it returns to its original shape to seal the heat dissipation vent 14 and the bottom surface of the support base 15. In addition, several heat dissipation holes 28 are provided on the deformation memory alloy 27, and the heat dissipation holes 28 are offset from the through holes 16 on the support base 15, so as to ensure the heat dissipation efficiency inside the capacitor cavity 10 and prevent external dust from entering the capacitor cavity 10.

[0033] Reference Figure 2 , Figure 3 , Figure 4 Three support columns 29, corresponding to the mounting box 6, are welded and fixed to both sides of the main body box 4. The support columns 29 are hollow and communicate with the interior of the main body box 4, allowing insulating coolant from the main body box 4 to flow into them. The support columns 29 are angled upwards towards the mounting box 6 to increase the heat dissipation area of ​​the main body box 4. A vibration damper 30 is axially fitted onto the surface of the support column 29, and a vibration damping spring 31 is fixedly connected to the damper and axially fitted onto the surface of the support column 29. A sliding sleeve 32 is fixedly connected to the end of the vibration damping spring 31, fitting onto the surface of the support column 29 and sliding along its surface. A limiting block 21 is fixedly connected to the surface of the support column 29, abutting against the side of the sliding sleeve 32 away from the vibration damping spring 31, thus compressing the vibration damping spring 31. The cooperation of the sliding sleeve 32, the vibration damping spring 31, and the vibration damper 30 reduces vibration during transformer operation.

[0034] A first connecting rod 33 is hinged to the surface of the sliding sleeve 32 away from the damping spring 31, and a second connecting rod 34 is hinged to the end of the first connecting rod 33. The end of the second connecting rod 34 is rotatably connected to the outer surface of the deformation memory alloy 27, and the connection between the second connecting rod 34 and the deformation memory alloy 27 is close to the main body box 4. Meanwhile, the first connecting rod 33 and the second connecting rod 34 are set at an angle of less than 180° on one side, and a connecting spring 35 is fixedly connected to the surface of the first connecting rod 33 and the second connecting rod 34 on that side. During normal operation, the vibration experienced by the mounting box 6 is transmitted to the damping spring 31 and the vibration damper 30 through the second connecting rod 34, the first connecting rod 33, and the sliding sleeve 32, thereby reducing the vibration experienced by the mounting box 6. Furthermore, when the deformation memory alloy 27 is heated and the heat dissipation port 14 is opened, the deformation memory alloy 27 pushes the sliding sleeve 32 to slide closer to the shock absorber through the second connecting rod 34 and the first connecting rod 33. During this process, the connecting spring 35 is deformed and compressed. The vibration of the transformer body during operation can be transmitted to the connecting spring 35, and the second connecting rod 34 can push the deformation memory alloy 27 to swing regularly, thereby cleaning the dust accumulated at the heat dissipation port 28.

[0035] The implementation principle of this application embodiment is as follows: When the equipment is running, the transformer body generates heat, which is absorbed by the insulating coolant inside the main housing 4. Since the side plates, partitions 8, support base 15, and support columns 29 of the mounting box 6 are all hollow structures and connected to the interior of the main housing 4, the insulating coolant circulates in these components, forming an efficient heat exchange path. The heat is transferred to the outer wall of the mounting box 6 and the heat sink 7 through the coolant and dissipated into the environment, achieving coordinated heat dissipation for the transformer body and the capacitor body 5.

[0036] The heat generated by the capacitor body 5 during operation is directly conducted to the support base 15. The coolant inside the support base 15 promptly removes the heat, and the heat is rapidly transferred to the deformation memory alloy 27 through the contact between the deformation memory alloy 27 and the support base 15. When the temperature of the capacitor cavity 10 rises to the phase transition point of the deformation memory alloy 27, the deformation memory alloy 27 deforms under heat, bending downwards on the side closest to the main body 4, exposing the heat dissipation vent 14. This promotes the discharge of hot air from the capacitor cavity 10 through convection, while cool air enters through the gaps, enhancing the heat dissipation effect. When the temperature drops, the deformation memory alloy 27 cools and returns to its original shape, sealing the heat dissipation vent 14 to prevent dust, moisture, and other contaminants from entering, ensuring the cleanliness of the equipment's interior.

[0037] Meanwhile, the vibration damping system absorbs vibrations generated by transformer operation and the external environment through the damper, damping spring 31, and sliding sleeve 32. Vibration energy is transmitted through the sliding sleeve 32 to the first connecting rod 33 and the second connecting rod 34, ultimately causing the deformation shape memory alloy 27 to vibrate slightly and regularly, thereby clearing dust accumulated at the heat dissipation holes 28 and maintaining smooth heat dissipation. The connecting spring 35 provides cushioning between the first connecting rod 33 and the second connecting rod 34, enhancing vibration transmission efficiency.

[0038] The sealed enclosure door 20 is designed to facilitate regular maintenance of components such as the circuit breaker 11 and capacitor body 5, while welding and fixing ensure the connection strength and sealing reliability of the mounting box 6 and partition 8 with the main box 4, preventing coolant leakage. The overall equipment achieves passive intelligent heat dissipation, shock absorption, self-cleaning, and convenient maintenance, making it suitable for harsh outdoor environments and significantly improving equipment lifespan and operational stability.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A complete set of pole-mounted transformer equipment with compensation capacitor, comprising a main housing (4), wherein the main housing (4) contains a transformer body and is filled with insulating coolant, characterized in that: At least one mounting box (6) is provided on the side of the main body box (4); The side panel of the mounting box (6) has a hollow structure, and the hollow structure is connected to the interior of the main box (4) so ​​that the insulating coolant flows into the interior of the side panel; The mounting box (6) is divided into a wiring cavity (9) and a capacitor cavity (10) by a partition (8). The partition (8) has a hollow structure and is connected to the interior of the main box (4). The mounting box (6) and the partition (8) are both fixed to the main body box (4) by welding; A circuit breaker (11) is provided in the wiring cavity (9), and a sealing element (12) is provided on the side wall of the mounting box (6) inside the wiring cavity (9). A capacitor body (5) is provided in the capacitor cavity (10). The capacitor body (5) is connected to the circuit breaker (11) through a wire. The circuit breaker (11) is connected to the transformer body through a wire passing through the sealing element (12). The mounting box (6) has a heat dissipation port (14) on the bottom surface of the capacitor cavity (10). A deformation memory alloy (27) is provided at the heat dissipation port (14). When heated, the deformation memory alloy (27) has the deformation characteristic of bending the side close to the main body box (4) downward to expose the heat dissipation port (14), and restoring itself when cooled to close the heat dissipation port (14).

2. The pole-mounted transformer assembly with compensation capacitor according to claim 1, characterized in that: The deformation memory alloy (27) has several heat dissipation holes (28).

3. The pole-mounted transformer assembly with compensation capacitor according to claim 2, characterized in that: The main body box (4) has several support columns (29) on its side. The support columns (29) are hollow inside and communicate with the inside of the main body box (4).

4. A complete set of pole-mounted transformer equipment with compensation capacitor according to claim 3, characterized in that: A shock absorber and a sliding sleeve (32) are fitted on the support column (29), and a damping spring (31) is provided between the shock absorber and the sliding sleeve (32); A first connecting rod (33) is hinged to the sliding sleeve (32), and a second connecting rod (34) is rotatably connected to the end of the first connecting rod (33). The end of the second connecting rod (34) is rotatably connected to the outer surface of the deformation memory alloy (27).

5. A complete set of pole-mounted transformer equipment with compensation capacitor according to claim 4, characterized in that: A connecting spring (35) is provided between the first connecting rod (33) and the second connecting rod (34).

6. A complete set of pole-mounted transformer equipment with compensation capacitor according to claim 1, characterized in that: The mounting box (6) is slidably connected to a sealing box door (20) on the side away from the main box (4). A locking member is provided on the sealing box door (20). When the sealing box door (20) closes the mounting box (6), the locking member is threaded to the bottom surface of the mounting box (6).

7. A pole-mounted transformer assembly with a compensation capacitor according to claim 1, characterized in that: Several heat sinks (7) are connected to the outer surfaces of the mounting box (6) and the main body box (4).

8. A complete set of pole-mounted transformer equipment with compensation capacitor according to claim 1, characterized in that: The mounting box (6) is provided with a support base (15), and the support base (15) has several through holes (16). The capacitor body (5) is placed on the support base (15), and the support base (15) abuts against the upper surface of the deformation memory alloy (27). The support base (15) has a hollow structure inside, and the hollow structure of the support base (15) is connected to the interior of the main body box (4) so ​​that the insulating coolant flows into the interior of the support base (15).

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