Solid-sealed insulating cylinder

Abstract

The utility model relates to a solid-sealed insulating cylinder, which relates to the technical field of components of electrical equipment and comprises a support, an upper wire outlet seat, a lower wire outlet seat, a connecting seat, a vacuum arc-extinguishing chamber, a drainage assembly and a heat dissipation mechanism, the upper wire outlet seat is arranged on the support, the lower wire outlet seat is arranged on the support, the connecting seat is arranged on the support, the vacuum arc-extinguishing chamber is arranged on the support, and the drainage assembly is arranged on the vacuum arc-extinguishing chamber. The drainage assembly is arranged on the support, the heat dissipation mechanism comprises a heat conduction pipe, a first heat dissipation cylinder, a second heat dissipation cylinder, a third heat dissipation cylinder, a fourth heat dissipation cylinder and a fan assembly, the first heat dissipation cylinder is arranged on the support, the second heat dissipation cylinder and the third heat dissipation cylinder are arranged on the first heat dissipation cylinder, and the fourth heat dissipation cylinder is arranged on the first heat dissipation cylinder; according to the utility model, through the heat dissipation mechanism, the problems that heat dissipation is poor, and the insulation performance of an insulating material is reduced due to steam generated by high temperature are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment components, in particular to a solid-sealed insulation cylinder. BACKGROUND

[0002] The solid-sealed insulation cylinder is an important component used in high-voltage circuit breakers, which is usually composed of a metal shell and insulating material, and can effectively protect the cable joint from external environment, prevent leakage and other safety hazards. The solid-sealed insulation cylinder plays an important role in the power system, which can ensure the safe and reliable operation of the cable joint and prolong the service life of the equipment.

[0003] At present, the Chinese utility model patent application with publication date of October 27, 2023 and publication number of CN 219916820U provides an insulation cylinder, which comprises an insulation cylinder and a connecting part, the bottom of the insulation cylinder is provided with a connecting part, the front of the insulation cylinder is respectively provided with a first wiring port and a second wiring port, a connecting block is arranged in the first wiring port, a plurality of first reinforcing ribs are arranged at the top of the inside of the insulation cylinder, and the first reinforcing ribs are connected to the connecting block, and a mounting plate is arranged in the insulation cylinder. By adopting an integrated structure design of the insulation cylinder, the first reinforcing rib and the connecting block, the internal bolt connection is reduced, the use cost is reduced, the positional deviation during installation is reduced, and the service life of the insulation cylinder is improved.

[0004] In the related art, in the process of closing the vacuum arc-extinguishing chamber, the moving contact and the static contact are in contact with each other, and at the same time, a certain current flows through the contact system and the arc-extinguishing chamber. A large amount of heat is generated in the process. The poor heat dissipation of the solid-sealed insulation cylinder can cause the temperature of the epoxy resin material to rise above its glass transition temperature, which will cause the epoxy resin insulation medium loss to increase, the material to age, and the electrical conductivity to decrease, thereby causing the insulation performance to decrease. Long-term decrease in insulation performance can lead to insulation failure, increasing the risk of insulation accidents, and high temperature can easily lead to the generation of water vapor. High temperature causes water in the epoxy resin material to evaporate, forming water vapor. These water vapor can form bubbles or small gaps in the insulation material, thereby reducing the insulation performance of the insulation material.

[0005] Therefore, it is necessary to provide a solid-sealed insulation cylinder to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] The embodiment of the present application provides a solid-sealed insulation cylinder to solve the technical problems of poor heat dissipation and water vapor generation caused by high temperature in the related art, thereby reducing the insulation performance of the insulation material.

[0007] The embodiment of the present application provides a solid sealing insulation cylinder, which comprises a support, an upper outgoing line seat, a lower outgoing line seat, a connecting seat, a vacuum arc-extinguishing chamber, a drainage assembly and a heat dissipation mechanism, the upper outgoing line seat is arranged on the support, the lower outgoing line seat is arranged on the support, the connecting seat is arranged on the support, the vacuum arc-extinguishing chamber is arranged on the support, the drainage assembly is arranged on the support, the heat dissipation mechanism comprises a heat conduction pipe, a first heat dissipation cylinder, a second heat dissipation cylinder, a third heat dissipation cylinder, a fourth heat dissipation cylinder and a fan assembly, the first heat dissipation cylinder is arranged on the support, the second heat dissipation cylinder and the third heat dissipation cylinder are arranged on the first heat dissipation cylinder, the fourth heat dissipation cylinder is arranged on the first heat dissipation cylinder, one end of the heat conduction pipe is arranged on the vacuum arc-extinguishing chamber, the other end of the heat conduction pipe is arranged on the first heat dissipation cylinder, and the fan assembly is arranged on the fourth heat dissipation cylinder.

[0008] The technical scheme has at least the following technical effects: in the solid sealing insulation cylinder, the moving contact and the static contact are in contact with each other, and at the same time, a certain current flows through the contact system and the arc-extinguishing chamber, a large amount of heat is generated in the process, the heat is dissipated from the heat conduction pipe and introduced into the first heat dissipation cylinder, the first heat dissipation cylinder is dissipated into the second heat dissipation cylinder, the third heat dissipation cylinder and the fourth heat dissipation cylinder, and the heat is dissipated through the fan mechanism in the fourth heat dissipation cylinder.

[0009] The solid sealing insulation cylinder provided by the embodiment of the present application can enhance heat dissipation of the heat dissipation cylinder through the heat dissipation mechanism, slow down the heat generated in the process that the moving contact and the static contact are in contact with each other in the vacuum arc-extinguishing chamber, slow down the temperature rise of the epoxy resin material caused by poor heat dissipation of the solid sealing insulation cylinder, and slow down the problem of increased loss of the epoxy resin insulation medium caused by the temperature rise exceeding the glass transition temperature.

[0010] In some embodiments, the fan assembly comprises an air outlet plate, an air inlet plate, a motor and a fan, the air inlet plate is arranged on the fourth heat dissipation cylinder, the air inlet plate is provided with an air inlet hole, the motor is arranged on the air inlet plate, the fan is arranged on the output shaft of the motor, the fan is coaxially driven with the output shaft of the motor, and the air outlet plate is arranged on the fourth heat dissipation cylinder and provided with an air outlet hole.

[0011] In some embodiments, the first heat dissipation cylinder is provided with fins, the second heat dissipation cylinder is provided with fins, and the third heat dissipation cylinder is provided with fins.

[0012] In some embodiments, the drainage assembly comprises a first collecting strip and a second collecting strip, the first collecting strip is arranged on the support, the support is provided with a drainage hole corresponding to the first collecting strip, and the second collecting strip is arranged on the support.

[0013] In some embodiments, a through hole is formed on the second collecting bar, and a drainage cylinder is provided on the second collecting bar through the through hole.

[0014] In some embodiments, the bracket is provided with a first reinforcing rib, and the bracket is provided with a second reinforcing rib.

[0015] In some embodiments, an insulating silicone layer is provided on the vacuum interrupter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the three-dimensional structure of the sealed insulation cylinder provided in the embodiment of the present application Figure 1 ;

[0017] Figure 2 Schematic diagram of the three-dimensional structure of the sealed insulation cylinder provided in the embodiment of the present application Figure 2 ;

[0018] Figure 3 A schematic cross-sectional view of the solid-sealed insulating cylinder provided in an embodiment of the present application;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0021] Among them, the reference numerals in the figures are:

[0022] 1. Bracket; 2. Upper outlet seat; 3. Lower outlet seat; 4. Vacuum interrupter; 5. Connecting seat; 6. Drainage assembly; 61. First collecting strip; 62. Drainage hole; 63. Second collecting strip; 64. Drainage cylinder; 7. Heat dissipation mechanism; 71. Heat pipe; 72. First heat dissipation cylinder; 73. Second heat dissipation cylinder; 74. Third heat dissipation cylinder; 75. Fourth heat dissipation cylinder; 76. Heat sink; 77. Fan assembly; 771. Air inlet plate; 772. Air outlet plate; 773. Air inlet hole; 774. Air outlet hole; 775. Fan; 776. Motor; 8. Insulating silicone layer; 9. First reinforcing rib; 91. Second reinforcing rib. DETAILED DESCRIPTION

[0023] Based on this, in order to improve the technical problems existing in the related art of poor heat dissipation and the generation of water vapor due to high temperature, thereby reducing the insulation performance of the insulation material, the embodiments of the present application provide the following solutions.

[0024] Please also refer to Figures 1 to 5The embodiment of the application provides a solid-seal insulation cylinder, which comprises a support 1, an upper outgoing line seat 2, a lower outgoing line seat 3, a connecting seat 5, a vacuum arc-extinguishing chamber 4, a drainage assembly 6 and a heat dissipation mechanism 7, the upper outgoing line seat 2 is arranged on the support 1, the lower outgoing line seat 3 is arranged on the support 1, the connecting seat 5 is arranged on the support 1, the vacuum arc-extinguishing chamber 4 is arranged on the support 1, the drainage assembly 6 is arranged on the support 1, and the heat dissipation mechanism 7 is arranged on the support 1.

[0025] In some embodiments, referring to Figures 2 to 5 The heat dissipation mechanism 7 comprises a heat conduction pipe 71, a first heat dissipation cylinder 72, a second heat dissipation cylinder 73, a third heat dissipation cylinder 74, a fourth heat dissipation cylinder 75 and a fan assembly 77, the first heat dissipation cylinder 72 is arranged on the support 1, the second heat dissipation cylinder 73 and the third heat dissipation cylinder 74 are arranged on the first heat dissipation cylinder 72, the fourth heat dissipation cylinder 75 is arranged on the first heat dissipation cylinder 72, one end of the heat conduction pipe 71 is arranged on the vacuum arc-extinguishing chamber 4, the other end of the heat conduction pipe 71 is arranged on the first heat dissipation cylinder 72, the fan assembly 77 is arranged on the fourth heat dissipation cylinder 75, the fan assembly 77 comprises an air outlet plate 772, an air inlet plate 771, a motor 776 and a fan 775, the air inlet plate 771 is arranged on the fourth heat dissipation cylinder 75, air inlet holes 773 are formed in the air inlet plate 771, the motor 776 is arranged on the air inlet plate 771, the fan 775 is arranged on an output shaft of the motor 776, the fan 775 is coaxially driven with the output shaft of the motor 776, the air outlet plate 772 is arranged on the fourth heat dissipation cylinder 75, air outlet holes 774 are formed in the air outlet plate 772, heat dissipation fins 76 are arranged on the first heat dissipation cylinder 72, heat dissipation fins 76 are arranged on the second heat dissipation cylinder 73, and heat dissipation fins 76 are arranged on the third heat dissipation cylinder 74.

[0026] With such an arrangement, the movable contact and the fixed contact in the solid insulation cylinder are in contact with each other, and at the same time, a certain current flows through the contact system and the arc extinguishing chamber. A large amount of heat is generated in the process, and the heat is dissipated from the heat conduction pipe 71 into the first heat dissipation cylinder 72. The first heat dissipation cylinder 72 dissipates into the second heat dissipation cylinder 73, the third heat dissipation cylinder 74, and the fourth heat dissipation cylinder 75. Heat dissipation is carried out through the heat dissipation fins 76 in the first heat dissipation cylinder 72, the second heat dissipation cylinder 73, and the third heat dissipation cylinder 74, and at the same time, heat dissipation is carried out through the fan 775 mechanism in the fourth heat dissipation cylinder 75. The motor 776 in the heat dissipation fan 775 is started, and the output shaft of the motor 776 rotates to drive the fan 775 to rotate. Heat enters from the air inlet hole 773 on the air inlet plate 771 and is dissipated from the air outlet hole 774 on the air outlet plate 772. The structure of the heat dissipation cylinder can increase the heat dissipation area, so that the heat can be more evenly distributed on a larger surface, thereby improving the heat dissipation efficiency. The heat dissipation fins 76 enhance the effect of heat convection and heat radiation by increasing the surface area. The heat dissipation fins 76 are usually designed to have a large surface area and a complex shape to maximize heat exchange. The fan 775 enhances the heat dissipation effect by forced convection. It can actively extract hot air from the equipment and introduce cold air, thereby accelerating the dissipation of heat. Through effective heat dissipation, overheating of the equipment can be prevented, thereby reducing material aging and performance degradation caused by high temperature, prolonging the service life of the equipment, and reducing the risk of equipment failure due to overheating, improving the overall reliability and stability of the equipment. The design of the solid insulation cylinder combined with the heat dissipation cylinder, the heat dissipation fins 76, and the heat dissipation fan 775 not only improves the heat dissipation efficiency of the equipment and prolongs its service life, but also improves the reliability and safety of the equipment, optimizes its performance, and helps to save energy.

[0027] In some embodiments, referring to Figures 1 to 4 , the drainage assembly 6 includes a first collection strip 61 and a second collection strip 63. The first collection strip 61 is arranged on the support 1, and the support 1 is provided with a drainage hole 62 corresponding to the first collection strip 61. The second collection strip 63 is arranged on the support 1, and the second collection strip 63 is provided with a through hole. The second collection strip 63 is provided with a drainage cylinder 64 through the through hole.

[0028] In this way, in high temperature conditions, water vapor is generated, which rises to the top and cools down against the wall of the support 1 to form water droplets that roll down to the first collection strip 61, from which they are collected and drained through the drainage hole 62 to the second collection strip 63, from which they are drained through the drainage cylinder 64. Water vapor, if condensed into water droplets, can cause electrical short circuits or arc discharge failures. By draining, the accumulation of water vapor inside the device can be reduced, thereby reducing the risk of electrical failure, and continuous accumulation of water vapor can cause corrosion or performance degradation of internal components of the device. Drainage helps to maintain a dry environment inside the device, improving the reliability and long-term stability of the device, and moisture and humidity are one of the main factors that cause the device to age and degrade. By effectively draining, the impact of these factors on the device can be reduced, thereby extending the service life of the device, and the presence of water vapor can cause corrosion of mechanical parts or degradation of lubrication performance. Drainage can reduce these risks and prevent device downtime or damage due to mechanical failure, and the insulation performance of the solid-sealed insulation cylinder can be affected by the presence of moisture. Drainage helps to maintain the dry state of the insulation material and maintain its original insulation performance.

[0029] In some embodiments, referring to Figure 1 , the support 1 is provided with a first reinforcing rib 9, and the support 1 is provided with a second reinforcing rib 91.

[0030] In this way, the reinforcing rib can significantly improve the mechanical strength of the solid-sealed insulation cylinder, enabling it to withstand greater mechanical stress such as pressure, bending and twisting, which is crucial for ensuring the structural integrity of the device during transportation, installation and use. The reinforcing rib helps to improve the structural stability of the solid-sealed insulation cylinder, preventing deformation or damage during long-term use, and by reasonably designing the reinforcing rib, the strength and stability of the solid-sealed insulation cylinder can be greatly improved without significantly increasing the amount of material used, which helps to achieve lightweight design while maintaining or improving product performance.

[0031] In some embodiments, referring to Figure 3 , the vacuum arc-extinguishing chamber 4 is provided with an insulating silica gel layer 8.

[0032] With such an arrangement, the insulating layer can provide additional electrical insulation, preventing current from flowing through unintended paths, which is crucial for ensuring the safe operation of the device in a high-voltage environment. In the vacuum interrupter 4, the arc will be extinguished when the current crosses zero. The insulating layer helps prevent the arc from reigniting after the current crosses zero, ensuring that the circuit breaker can reliably cut off the current. The insulating layer can increase the mechanical strength of the vacuum interrupter 4, helping it withstand mechanical stresses during operation, such as impact forces during switch operation. Insulating materials generally have high thermal stability and can withstand high temperatures without performance degradation. This helps protect the vacuum interrupter 4 from the high temperatures generated by the arc. By providing an additional protective layer, the insulating layer helps reduce wear and tear on the vacuum interrupter 4, thereby extending the service life of the device.

[0033] The implementation principle of the solid-sealed insulation cylinder is as follows: the moving contact and the stationary contact in the solid-sealed insulation cylinder are in contact with each other, and at the same time, a certain current flows through the contact system and the arc-extinguishing chamber. A large amount of heat is generated in the process, and the heat is dissipated from the heat-conducting pipe 71 into the first heat-dissipating cylinder 72. The first heat-dissipating cylinder 72 dissipates heat into the second heat-dissipating cylinder 73, the third heat-dissipating cylinder 74, and the fourth heat-dissipating cylinder 75. Heat dissipation is achieved through the heat-dissipating fins 76 in the first heat-dissipating cylinder 72, the second heat-dissipating cylinder 73, and the third heat-dissipating cylinder 74, as well as through the fan 775 mechanism in the fourth heat-dissipating cylinder 75. The motor 776 in the heat-dissipating fan 775 is started, and the output shaft of the motor 776 rotates to drive the fan 775 to rotate. Heat enters through the air inlet holes 773 in the air inlet plate 771 and is dissipated through the air outlet holes 774 in the air outlet plate 772. In high-temperature conditions, water vapor is generated, rises to the top of the bracket 1, and cools to form water droplets. The water droplets roll down to the first collection strip 61, are collected in the drainage holes 62, and then roll down to the second collection strip 63. The water droplets are collected in the drainage cylinder 64 in the second collection strip 63 and are drained.

[0034] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A solid-sealed bushing, characterized by: The application relates to a vacuum arc extinguishing device, which comprises a support (1), an upper outgoing line seat (2), a lower outgoing line seat (3), a connecting seat (5), a vacuum arc extinguishing chamber (4), a drainage assembly (6) and a heat dissipation mechanism (7), wherein the upper outgoing line seat (2) is arranged on the support (1), the lower outgoing line seat (3) is arranged on the support (1), the connecting seat (5) is arranged on the support (1), the vacuum arc extinguishing chamber (4) is arranged on the support (1), the drainage assembly (6) is arranged on the support (1), the heat dissipation mechanism (7) comprises a heat conduction pipe (71), a first heat dissipation cylinder (72), a second heat dissipation cylinder (73), a third heat dissipation cylinder (74), a fourth heat dissipation cylinder (75) and a fan assembly (77), the first heat dissipation cylinder (72) is arranged on the support (1), the second heat dissipation cylinder (73) and the third heat dissipation cylinder (74) are arranged on the first heat dissipation cylinder (72), the fourth heat dissipation cylinder (75) is arranged on the first heat dissipation cylinder (72), one end of the heat conduction pipe (71) is arranged on the vacuum arc extinguishing chamber (4), and the other end of the heat conduction pipe (71) is arranged on the first heat dissipation cylinder (72).

2. A solid-sealed bushing according to claim 1, characterized in that: The fan assembly (77) comprises an air outlet plate (772), an air inlet plate (771), a motor (776) and a fan (775), the air inlet plate (771) is arranged on the fourth heat dissipation cylinder (75), air inlet holes (773) are formed in the air inlet plate (771), the motor (776) is arranged on the air inlet plate (771), the fan (775) is arranged on an output shaft of the motor (776), the fan (775) is coaxially driven with the output shaft of the motor (776), and the air outlet plate (772) is arranged on the fourth heat dissipation cylinder (75) and is provided with air outlet holes (774).

3. A solid-sealed bushing according to claim 2, characterized in that: The first heat dissipation cylinder (72) is provided with heat dissipation fins (76), the second heat dissipation cylinder (73) is provided with heat dissipation fins (76), and the third heat dissipation cylinder (74) is provided with heat dissipation fins (76).

4. A solid-sealed bushing according to claim 3, characterized in that: The drainage assembly (6) comprises a first collecting strip (61) and a second collecting strip (63), the first collecting strip (61) is arranged on the support (1), drainage holes (62) are formed in the support (1) and correspond to the first collecting strip (61), and the second collecting strip (63) is arranged on the support (1).

5. A solid-sealed bushing according to claim 4, characterized in that: Holes are formed in the second collecting strip (63), and drainage cylinders (64) are arranged on the second collecting strip (63) through the holes.

6. A solid-sealed bushing according to claim 5, characterized in that: The support (1) is provided with a first reinforcing rib (9), and the support (1) is provided with a second reinforcing rib (91).

7. A solid-sealed bushing according to claim 6, characterized in that: The vacuum arc extinguishing chamber (4) is provided with an insulating silica gel layer (8).

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