Heat dissipation frame of solid-sealed polar pole

Abstract

The utility model relates to the technical field of electrical equipment, and provides a heat dissipation frame of a solid-sealed polar pole, which is firm in connection and safe in use, and comprises a fixer and a cross beam arranged on the outer wall of the fixer, a bearing beam is fixedly arranged at the end part of the cross beam, and a heat dissipation fan is embedded in the bearing beam. The fixing device comprises an outer layer shell and a contact sleeve, a cross beam is arranged on the outer wall of the outer layer shell, the contact sleeve is arranged in the outer layer shell, a compression block is arranged on the contact sleeve in a penetrating mode, the outer wall of the compression block is fixedly connected with the inner wall of the outer layer shell, and when the solid-sealed polar pole expands due to heating, the contact sleeve expands outwards and extrudes the compression block to absorb expansion pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a heat dissipation frame for sealing a pole. Background Art

[0002] The sealed pole is formed by embedding the vacuum interrupter and the conductive parts related to the circuit breaker into easily solidified solid insulating materials such as epoxy resin or thermoplastic materials, so that the entire circuit breaker becomes an integral component. The sealed pole is modularly designed with a simple structure and fewer detachable parts, thus having high reliability. At the same time, it has extremely high insulating rod capacity and reduces the size of the circuit breaker, which is conducive to the miniaturization of electrical equipment such as switch cabinets.

[0003] When the sealed pole is in use, since current will enter the sealed pole and the resistance of the sealed pole itself is large, a large amount of heat will be generated after power is turned on. In order to make the temperature of the sealed pole controllable and keep it below the hot melting temperature of the insulating material, it is necessary to set a heat sink outside the sealed pole. The heat generated by the sealed pole can be dissipated through the heat sink, so that the heating of the sealed pole can be controlled. At the same time, the heat sink only needs to be set outside the sealed pole, which is simple and convenient to install and use.

[0004] Although the above-mentioned prior art can solve the corresponding technical problems, it still has certain defects: since the sealed pole will generate heat during operation and cool down after the operation, it will expand when it generates heat and shrink after cooling down. After a period of use, the repeated expansion and contraction will cause fatigue loosening of the connection position between the heat sink and the sealed pole, making the connection between the heat sink and the sealed pole not firm. If the sealed pole is used in a high-altitude environment, the heat sink is prone to fall, and the safety is poor. Utility Model Content

[0005] The utility model aims to provide a heat dissipation frame for a sealed pole with firm connection and safe use in view of the defects and shortcomings of the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a heat dissipation frame of a sealed pole, comprising a fixer and a beam arranged on the outer wall of the fixer, a load-bearing beam being fixedly provided on the end of the beam, a heat dissipation fan being embedded in the load-bearing beam, the fixer comprising an outer shell having an outer wall provided with a beam and a contact sleeve arranged in the outer shell, a compression block being provided through the contact sleeve and fixedly connected to the outer wall and the inner wall of the outer shell, when the sealed pole heats up and expands, the expansion pressure is absorbed by the contact sleeve expanding outward and squeezing the compression block.

[0007] A further improvement is that the inner wall of the contact sleeve is also provided with a plurality of anti-slip grooves.

[0008] A further improvement is that an elastic column is embedded in the middle section of the load-bearing beam.

[0009] A further improvement is that the compression block comprises a deformation ball which penetrates and is embedded in the contact sleeve and is fixedly connected to the inner wall of the outer shell, and a suction cup tube which is arranged on a side of the deformation ball close to the inner wall of the contact sleeve.

[0010] A further improvement is that a support frame is also provided on the inner wall of the deformable ball.

[0011] A further improvement is that a suction cup is further provided at one end of the suction cup tube close to the inner wall of the contact sleeve.

[0012] A further improvement is that a single exhaust pipe is embedded through the deformable ball.

[0013] Further improvement is: the single-outlet exhaust pipe includes an exhaust pipe that penetrates and is embedded in the outer wall of the deformable ball and a blocking block arranged in the exhaust pipe, the blocking block is fitted with a closing block, the inner wall of the exhaust pipe is provided with a sliding groove above the closing block, the top surface of the closing block is provided with a pressure rod that is slidably connected between the outer wall and the inner wall of the sliding groove, and a compression spring is provided between the pressure rod and the inner wall of the sliding groove.

[0014] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: the utility model fixes the heat dissipation frame sleeve on the sealed pole through the fixer, and when the sealed pole is heated and expanded during operation, the outward expansion pressure is absorbed by the contact sleeve expanding outward and squeezing the compression block, thereby avoiding the outer shell from being repeatedly squeezed and loosened due to fatigue, and at the same time, the compression block is adsorbed on the surface of the sealed pole, and then when it shrinks, it can provide additional adsorption force to fix it, thereby preventing it from falling off, and greatly improving the safety when used at high altitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the structure of the front cross section of the heat dissipation rack of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a front view cross section of the fastener of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a front view cross section of a compression block of the utility model;

[0019] Figure 4It is a structural schematic diagram of a front cross section of a single exhaust pipe of the utility model. DETAILED DESCRIPTION

[0020] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0021] See also Figure 1-4 As shown, the technical solution adopted in this specific embodiment is: a heat dissipation frame of a sealed pole, comprising a fixer 1 and a crossbeam 2 arranged on the outer wall of the fixer 1, a load-bearing beam 3 is fixedly arranged on the end of the crossbeam 2, and a heat dissipation fan 4 is embedded in the load-bearing beam 3, the fixer 1 comprises an outer shell 11 with a crossbeam 2 on the outer wall and a contact sleeve 12 arranged in the outer shell 11, a compression block 14 is penetrated by the contact sleeve 12 and fixedly connected with the outer wall and the inner wall of the outer shell 11, the compression block 14 comprises a deformation ball 141 that penetrates and is embedded in the contact sleeve 12 and is fixedly connected with the inner wall of the outer shell 11, and a suction cup tube 142 that is arranged on the side of the deformation ball 141 close to the inner wall of the contact sleeve 12, when the sealed pole heats up and expands, the expansion is compressed by the contact sleeve 12 expanding outward and squeezing the compression block 14 Expansion pressure absorption, when in use, the sealed pole is installed into the holder 1, so that the inner wall of the contact sleeve 21 of the holder 1 contacts the outer wall of the sealed pole, and the holder 1 together with the crossbeam 2 is fixed on the sealed pole, so that the heat dissipation fan 4 is aimed at the sealed pole, when the sealed pole is heated, the heat dissipation fan 4 blows cold air to dissipate the heat of the sealed pole, when the sealed pole generates heat and expands during operation, the lateral pressure generated by the expansion of the sealed pole is applied to the contact sleeve 12, thereby causing the contact sleeve 12 to expand outward, and compressing the compression block 14, so that the deformation ball 141 of the compression block 14 is squeezed and deformed, and the lateral expansion pressure of the sealed pole is absorbed, thereby avoiding the outer shell 11 from being subjected to repeated expansion force and causing fatigue loosening, making the connection more stable and preventing it from falling off;

[0022] The inner wall of the contact sleeve 12 is also provided with a plurality of anti-slip grooves 13. In this embodiment, five anti-slip grooves 13 are provided, which are conducive to enhancing the friction with the surface of the sealed pole and further preventing it from falling off.

[0023] An elastic column 5 is embedded in the middle section of the load-bearing beam 3, which is conducive to absorbing the tensile force generated by the longitudinal expansion;

[0024] The inner wall of the deformable ball 141 is also provided with a support frame 145, which is beneficial to enhancing the pressure resistance of the deformable ball 141, and generating elastic force after being compressed to push the contact sleeve 12 outward to increase the friction between the contact sleeve 12 and the outer wall of the sealed pole.

[0025] The end of the suction cup tube 142 close to the inner wall of the contact sleeve 12 is also provided with a suction cup 144, which is helpful to enhance the contact surface, thereby making the adsorption area larger and the fixing effect better;

[0026] The deformable ball 141 is also penetrated and embedded with a single exhaust pipe 143, and the single exhaust pipe 143 includes a discharge pipe 21 penetrated and embedded in the outer wall of the deformable ball 141 and a blocking block 22 arranged in the discharge pipe 21, and a closing block 23 is fitted on the blocking block 22, and a sliding groove 25 is arranged on the inner wall of the discharge pipe 21 above the closing block 23, and a pressure rod 24 is provided on the top surface of the closing block 23, and the outer wall and the inner wall of the sliding groove 25 are slidably connected, and a compression spring is provided between the pressure rod 24 and the inner wall of the sliding groove 25 26. After the deformable ball 141 is squeezed, the air inside it is discharged outward through the single exhaust pipe 143, and the gas enters the exhaust pipe 21, passes through the blocking block 22 and pushes open the closing block 23, so that it is discharged outward. After being discharged, the closing block 23 is pushed back by the pressure rod 24 in cooperation with the extrusion spring 26, so that it re-fits the blocking block 22 and closes the exhaust pipe 21, thereby generating negative pressure inside the deformable ball 141, and then adsorbs the sealed pole from the suction cup tube 142, thereby further enhancing the fixing effect of the sealed pole.

[0027] Working principle of the utility model: when the utility model is used, the sealed pole is installed into the fixture 1, so that the inner wall of the contact sleeve 21 of the fixture 1 contacts the outer wall of the sealed pole, and the fixture 1 together with the crossbeam 2 is fixed on the sealed pole, so that the heat dissipation fan 4 is aimed at the sealed pole, when the sealed pole is heated, the heat dissipation fan 4 blows cold air to dissipate the heat of the sealed pole, when the sealed pole generates heat and expands during operation, the lateral pressure generated by the expansion of the sealed pole is applied to the contact sleeve 12, thereby causing the contact sleeve 12 to expand outward, and compressing the compression block 14, so that the deformation ball 141 of the compression block 14 is squeezed and deformed, and the lateral expansion pressure of the sealed pole is absorbed, thereby avoiding the outer shell 11 from being subjected to repeated expansion force and causing fatigue loosening, making the connection more stable and preventing it from falling off.

[0028] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above functions of the utility model can be used as a choice. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.

[0029] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A heat sink for a sealed pole, comprising a fixture (1) and a crossbeam (2) arranged on the outer wall of the fixture (1), a bearing beam (3) being fixedly arranged on the end of the crossbeam (2), a heat dissipation fan (4) being embedded in the bearing beam (3), characterized in that: The fixture (1) comprises an outer shell (11) whose outer wall is provided with a crossbeam (2) and a contact sleeve (12) arranged in the outer shell (11); a compression block (14) is provided through the contact sleeve (12) and is fixedly connected to the inner wall of the outer shell (11); when the sealed pole heats up and expands, the expansion pressure is absorbed by the contact sleeve (12) expanding outwards and squeezing the compression block (14).

2. The heat sink for the sealed pole according to claim 1, characterized in that: The inner wall of the contact sleeve (12) is also provided with a plurality of anti-slip grooves (13).

3. The heat sink for the sealed pole according to claim 1, characterized in that: An elastic column (5) is embedded in the middle section of the load-bearing beam (3).

4. The heat sink for the sealed pole according to claim 1, characterized in that: The compression block (14) comprises a deformation ball (141) which penetrates and is embedded in the contact sleeve (12) and is fixedly connected to the inner wall of the outer shell (11), and a suction cup tube (142) which is arranged on a side of the deformation ball (141) close to the inner wall of the contact sleeve (12).

5. The heat sink for the sealed pole according to claim 4, characterized in that: A support frame (145) is also provided on the inner wall of the deformable ball (141).

6. The heat sink for sealed poles according to claim 4, characterized in that: A suction cup (144) is also provided at one end of the suction cup tube (142) close to the inner wall of the contact sleeve (12).

7. The heat sink for sealed poles according to claim 4, characterized in that: A single exhaust pipe (143) is also embedded through the deformed ball (141).

8. The heat sink for sealed poles according to claim 7, characterized in that: The single-outlet exhaust pipe (143) comprises an exhaust pipe (21) penetrating and embedded in the outer wall of the deformable ball (141) and a blocking block (22) arranged in the exhaust pipe (21); a closing block (23) is fitted on the blocking block (22); a sliding groove (25) is provided on the inner wall of the exhaust pipe (21) above the closing block (23); a pressure rod (24) is provided on the top surface of the closing block (23) and the outer wall is slidably connected to the inner wall of the sliding groove (25); a compression spring (26) is provided between the pressure rod (24) and the inner wall of the sliding groove (25).

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