Efficient heat dissipation type bus duct

Abstract

The utility model discloses an efficient heat dissipation type bus duct, which comprises a shell, a plurality of heat dissipation holes are arranged on the upper surface of the shell, heat dissipation pipes are fixedly arranged in the heat dissipation holes in a penetrating manner, each heat dissipation pipe comprises a pipe body, end covers are arranged at two end ports of the pipe body, the end covers are used for sealing the end ports of the pipe body, taper holes are arranged on the bottom surfaces of the end covers, narrow openings of the taper holes face the outer side of the pipe body, and the narrow openings of the taper holes face the outer side of the pipe body. A wide opening of the conical hole faces the inner side of the pipe body, a conical piston is movably connected into the conical hole, the outer side arc face of the piston is attached to the inner side arc face of the conical hole, a fixing hole is formed in the center of the piston, a telescopic rod is arranged in the fixing hole in a penetrating mode and comprises a first rod body and a second rod body, and the first rod body is arranged in a connecting hole in the center of the second rod body in a sliding and penetrating mode. The outer side face of the first rod is fixedly connected with the inner side face of the fixing hole of one piston, the outer side face of the second rod is fixedly connected with the inner side face of the fixing hole of the other piston, the telescopic rod is sleeved with a spring, and the two ends of the spring abut against the bottom faces of the pistons respectively.

Description

Technical Field

[0001] The utility model relates to a high-efficiency heat dissipation type bus duct. Background Art

[0002] Bus duct is a closed metal device composed of copper and aluminum busbars, which is used to distribute high power to each component of the distributed system. It has increasingly replaced wires and cables in indoor low-voltage power transmission trunk line projects. It has become popular in developed countries abroad, Hong Kong, and Macau. In Guangzhou, Guangdong, my country, more than 90% of the main lines leading to the distribution rooms of buildings with more than 12 floors use bus ducts; bus ducts are used from 630KVA transformers to distribution cabinets.

[0003] However, since most bus ducts are closed structures, high temperatures are often present inside, which can easily lead to damage to internal parts. Therefore, the heat dissipation structure in the bus duct has always received widespread attention. Some existing heat dissipation methods include processing heat dissipation holes, adding air cooling or liquid cooling equipment, and combining heat pipe technology. Heat pipe technology achieves heat dissipation by rapidly conducting heat through phase change of the medium. However, the heat pipe structure currently used in bus ducts cannot achieve good results, especially in replacing condensate, and the operation is relatively cumbersome. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the above prior art and provide a high-efficiency heat dissipation bus duct.

[0005] A high-efficiency heat dissipation bus duct comprises a shell, a conductive row is arranged inside the shell, a plurality of heat dissipation holes are arranged on the upper surface of the shell, a heat dissipation pipe is fixedly passed through the heat dissipation hole, a condensate is arranged in the heat dissipation pipe, an evaporation end of the heat dissipation pipe is located inside the shell, and a condensation end of the heat dissipation pipe is located outside the shell. The heat dissipation pipe comprises a pipe body, and end caps are arranged at both end ports of the pipe body, and the end caps are used to seal the ports of the pipe body.

[0006] A tapered hole is provided on the bottom surface of the end cover, the narrow mouth of the tapered hole faces the outside of the tube body, and the wide mouth of the tapered hole faces the inside of the tube body. A tapered piston is movably connected in the tapered hole, and the outer arc surface of the piston fits the inner arc surface of the tapered hole. A fixing hole is provided at the center of the piston, and a telescopic rod is passed through the fixing hole. The telescopic rod includes a first rod and a second rod. The first rod is slidably passed through the connecting hole at the center of the second rod. The outer side surface of the first rod is fixedly connected to the inner side surface of the fixing hole of one piston, and the outer side surface of the second rod is fixedly connected to the inner side surface of the fixing hole of another piston. A spring is sleeved on the outer side of the telescopic rod, and the two ends of the spring are respectively against the bottom surface of the piston.

[0007] Preferably, the outer arc surface of the piston is covered with a rubber sleeve, and the outer arc surface of the rubber sleeve fits with the inner arc surface of the tapered hole.

[0008] Preferably, an exhaust hole is provided on the outer side of the heat dissipation pipe body located outside the shell, and the exhaust hole is connected to an exhaust pipe, and an air pressure valve is provided on the exhaust pipe.

[0009] Preferably, the condensate is water or acetone or methanol or ethanol or a mixture thereof.

[0010] Preferably, the outer side surface of the middle section of the tube body is provided with threads, at least two nuts are provided at the threads, the upper surface of the shell is located between the nuts, and the tube body is fixed to the upper surface of the shell by the nuts.

[0011] Preferably, the shell is a split structure, and the shell includes a bottom shell and a cover plate, and the bottom shell and the cover plate are both U-shaped structures.

[0012] Preferably, a plurality of ventilation holes are provided on the side of the shell.

[0013] Preferably, a filter is provided in the ventilation hole.

[0014] Beneficial effect: Compared with the prior art, the utility model applies the heat dissipation method of heat pipe technology to the heat dissipation of bus duct, and forms a heat dissipation pipe through a tube body, a telescopic rod, and a conical piston. Hold the telescopic end and push it inward to separate the piston from the conical hole, and pour the condensate into the tube body. When the tube body is evacuated, the inside of the tube body is in a vacuum state. The pistons at both ends are tightly fitted with the inner wall of the conical hole under the action of the spring. The sealing between the piston and the conical hole is enhanced by a rubber sleeve to prevent the condensate from leaking out. At the same time, in order to prevent the air pressure inside the tube body from being too high, an exhaust hole is provided on the outer side of the tube body outside the bus duct shell, and the exhaust hole is connected to the exhaust pipe. There is also an air pressure valve on the exhaust pipe. When the air pressure inside the tube body is greater than the threshold value, the air pressure valve opens to exhaust and ensure the air pressure balance inside the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a high-efficiency heat dissipation type bus duct;

[0016] Figure 2 It is a cross-sectional view of the heat pipe;

[0017] In the figure, 1, cover plate, 2, bottom shell, 3, conductive bar, 4, heat dissipation pipe, 5, first rod, 6, spring, 7, exhaust pipe, 8, second rod, 9, end cover, and 10, tube body. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0019] like Figure 1-2As shown, the cover plate 1, the bottom shell 2, the conductive bar 3, the heat dissipation pipe 4, the first rod 5, the spring 6, the exhaust pipe 7, the second rod 8, the end cover 9, and the tube body 10;

[0020] A high-efficiency heat dissipation bus duct includes a shell, which is a split structure. The shell includes a bottom shell 2 and a cover plate 1. The bottom shell 2 and the cover plate 1 are both U-shaped structures. A conductive bar 3 is arranged inside the shell. A plurality of ventilation holes are arranged on the side of the shell. Filters are arranged in the ventilation holes.

[0021] The upper surface of the cover plate 1 is provided with a plurality of heat dissipation holes, and a heat dissipation pipe 4 is fixedly inserted into the heat dissipation hole. The heat dissipation pipe 4 is provided with condensate, and the condensate is water, acetone, methanol, ethanol or a mixture thereof;

[0022] The evaporation end of the heat dissipation tube 4 is located inside the shell, and the condensation end of the heat dissipation tube 4 is located outside the shell. The heat dissipation tube 4 includes a tube body 10. End caps 9 are provided at both end ports of the tube body 10. The end caps 9 are used to seal the ports of the tube body 10. A tapered hole is provided on the bottom surface of the end cap 9. The narrow opening of the tapered hole faces the outside of the tube body 10, and the wide opening of the tapered hole faces the inside of the tube body 10. A tapered piston is movably connected in the tapered hole. A rubber sleeve is provided on the outer arc surface of the piston. The outer arc surface of the rubber sleeve fits the inner arc surface of the tapered hole.

[0023] A fixing hole is provided at the center of the piston, and a telescopic rod is passed through the fixing hole. The telescopic rod includes a first rod 5 and a second rod 8. The first rod 5 is slidably passed through the connecting hole at the center of the second rod 8. The outer side of the first rod 5 is fixedly connected to the inner side of the fixing hole of one piston, and the outer side of the second rod 8 is fixedly connected to the inner side of the fixing hole of another piston. A spring 6 is sleeved on the outer side of the telescopic rod, and both ends of the spring 6 are respectively against the bottom surface of the piston.

[0024] An exhaust hole is provided on the outer side of the portion of the heat dissipation tube body 10 outside the shell, and the exhaust hole is connected to the exhaust pipe 7, and the exhaust pipe 7 is provided with an air pressure valve.

[0025] The outer side surface of the middle section of the tube body 10 is provided with threads, at least two nuts are provided at the threads, the upper surface of the shell is located between the nuts, and the tube body 10 is fixed to the upper surface of the shell through the nuts.

[0026] Instructions for use: The heat dissipation tube 4 is composed of a tube body 10, a telescopic rod, and a tapered piston. Hold the telescopic end and push it inward to separate the piston from the tapered hole, and pour the condensate into the tube body 10. Then, the tube body 10 is evacuated to make the inside of the tube body 10 a vacuum state. The pistons at both ends are tightly fitted to the inner wall of the tapered hole under the action of the spring 6. The rubber sleeve is used to enhance the sealing between the piston and the tapered hole to prevent the condensate from leaking out.

[0027] During use, the heat generated by the conductive bar 3 contacts the evaporation section of the heat dissipation tube 4, causing the liquid condensate to boil in the inner surface area of ​​the heat dissipation tube 4, and the generated gaseous condensate flows to the condensation section under the action of buoyancy and pressure difference. After the heat is exchanged in the condensation section, the temperature of the gaseous condensate decreases and becomes liquid, and then returns to the evaporation section along the telescopic rod under the action of capillary force. The returned condensate is heated by the heat of the device and restarts the evaporation and condensation cycle.

[0028] If too much gaseous working medium is generated, causing the internal pressure to be too high, the air pressure valve opens and the gas is discharged from the exhaust pipe 7, always keeping the internal pressure of the tube body 10 stable; when it is necessary to replace the internal condensate, push the telescopic rod to discharge the condensate, and then fill it with new condensate.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency heat dissipation bus duct, characterized in that: The invention comprises a shell, wherein a conductive row is arranged inside the shell, wherein a plurality of heat dissipation holes are arranged on the upper surface of the shell, wherein a heat dissipation pipe is fixedly passed through the heat dissipation hole, wherein condensate is arranged in the heat dissipation pipe, wherein the evaporation end of the heat dissipation pipe is located inside the shell, and the condensation end of the heat dissipation pipe is located outside the shell, wherein the heat dissipation pipe comprises a tube body, wherein end caps are arranged at both end ports of the tube body, and wherein the end caps are used to seal the ports of the tube body. The bottom surface of the end cover is provided with a tapered hole, the narrow mouth of the tapered hole faces the outside of the tube body, and the wide mouth of the tapered hole faces the inside of the tube body. A tapered piston is movably connected in the tapered hole, and the outer arc surface of the piston fits the inner arc surface of the tapered hole. A fixing hole is provided at the center of the piston, and a telescopic rod is passed through the fixing hole. The telescopic rod includes a first rod and a second rod. The first rod is slidably passed through the connecting hole at the center of the second rod. The outer side surface of the first rod is fixedly connected to the inner side surface of the fixing hole of one piston, and the outer side surface of the second rod is fixedly connected to the inner side surface of the fixing hole of another piston. A spring is sleeved on the outer side of the telescopic rod, and the two ends of the spring are respectively against the bottom surface of the piston.

2. The high-efficiency heat dissipation bus duct according to claim 1, characterized in that: The outer arc surface of the piston is sleeved with a rubber sleeve, and the outer arc surface of the rubber sleeve is fitted with the inner arc surface of the tapered hole.

3. The high-efficiency heat dissipation bus duct according to claim 1, characterized in that: An exhaust hole is arranged on the outer side of the heat dissipation pipe body outside the shell. The exhaust hole is connected to an exhaust pipe. An air pressure valve is arranged on the exhaust pipe.

4. The high-efficiency heat dissipation bus duct according to claim 1, characterized in that: The outer side surface of the middle section of the tube body is provided with threads, at least two nuts are provided at the threads, the upper surface of the shell is located between the nuts, and the tube body is fixed to the upper surface of the shell through the nuts.

5. The high-efficiency heat dissipation bus duct according to claim 1, characterized in that: The shell is a split structure, and the shell includes a bottom shell and a cover plate, and the bottom shell and the cover plate are both U-shaped structures.

6. The high-efficiency heat dissipation bus duct according to claim 1, characterized in that: The side surface of the shell is provided with a plurality of ventilation holes.

7. The high-efficiency heat dissipation bus duct according to claim 6, characterized in that: A filter screen is arranged in the ventilation hole.

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