CN210724127U - Novel high-voltage common-box bus - Google Patents

Abstract

The utility model discloses a novel high-voltage common box bus bar, which is characterized in that: it comprises a copper bar, a heat conduction unit and a heat dissipation unit; Unit: The heat-conducting unit includes an insulating heat-conducting sleeve, a heat-dissipating oil cavity, an air duct, a heat-conducting frame and a heat-conducting sheet. Three heat-dissipating oil cavities are spaced apart inside the heat-conducting frame. The frame body adjacent to the air duct forms a heat-conducting sheet, a copper bar is fixedly connected to the middle of the heat-dissipating oil cavity, and an insulating heat-conducting sleeve is fixedly connected to the outer surface of the copper bar; when heat is generated, it can be quickly The new high-voltage common box busbar has good heat dissipation effect, is easy to install, not easy to damage, and has a high safety factor.

Description

A new type of high-voltage common box bus

technical field

The utility model relates to the technical field of power supply and distribution, in particular to a novel high-voltage common box bus.

Background technique

With the continuous development of my country's economy, the demand for power supply has also increased, and various electrical infrastructure equipment has also developed rapidly in the power supply industry. The bus bar is made of high-conductivity copper (copper bar) and aluminum materials, which are used to transmit electric energy and have the ability to collect and distribute electric power. After the continuous advancement of technology, the high-voltage common box busbar has been continuously used due to its excellent short-circuit resistance and large current-carrying capacity. The high-voltage common box busbar is mainly used for the connection between factory circuits, substations, hydropower stations, generators and transformers. At present, in order to improve and eliminate the eddy current loss of the steel parts near the busbar during operation, improve the effective current carrying capacity of the conductor and reduce the energy loss, most of the high-voltage common box busbars are sealed, although the above problems are solved to a certain extent. However, it will inevitably generate a lot of heat during operation. It is difficult to meet the working requirements by relying on its shell for heat dissipation. In severe cases, its function may be lost or even burnt. According to the application number 201621049416.3, a new type of high-voltage common box bus bar includes a box body, a mounting plate, insulators, bolts, conductors, a cooling cover, a cooling fan, a controller, an air outlet and a temperature sensor. The mounting plate is arranged at the bottom of the box body, and the insulator is fixed Installed on the mounting plate, the conductor is installed on the upper part of the insulator by bolts, the heat dissipation cover is installed on the upper part of the box, the cooling fan is installed on the lower part of the upper plate of the heat dissipation cover, the controller is installed on the side plate of the heat dissipation cover, and the air outlet is installed on the heat dissipation cover and the box body. In the docking part, the temperature sensor is arranged at the upper wall plate of the box body, and the cooling fan and the temperature sensor are connected with the controller through wires. The new high-voltage common box busbar has poor heat dissipation effect, inconvenient installation, easy damage and low safety factor.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing defects and provide a novel high-voltage common box bus bar, which has good heat dissipation effect, is easy to install, is not easy to be damaged, and has a high safety factor, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a novel high-voltage common box bus bar, including copper bars, a heat conduction unit and a heat dissipation unit;

Copper bar: the outer surface of the copper bar is fixedly sleeved with the insulating heat-conducting sleeve in the heat-conducting unit;

Heat-conducting unit: The heat-conducting unit includes an insulating heat-conducting sleeve, a heat-dissipating oil cavity, an air duct, a heat-conducting frame and a heat-conducting sheet. Three heat-dissipating oil cavities are spaced apart inside the heat-conducting frame, and the upper and lower surfaces of the heat-conducting frame are spaced apart with longitudinal Air duct, the frame adjacent to the air duct forms a heat-conducting sheet, a copper bar is fixedly connected to the middle of the heat-dissipating oil cavity, and an insulating heat-conducting sleeve is fixedly connected to the outer surface of the copper bar; when heat is generated, it can be quickly It transfers the heat to the insulating heat-conducting sleeve wrapped on the outer surface of the copper bar, and then transfers the heat to the radiating oil soaked in the surrounding. The oil can quickly take away the local heat, so that the copper bar can maintain a good surface temperature, and the oil will heat It is transferred to the heat-conducting sheet fixedly connected to the outer surface of the heat-conducting frame.

Heat dissipation unit: The heat dissipation unit includes a fixing nut, a cover plate, a cooling fan, an air outlet, a mounting seat and a fan fixing nut. The cover plate is provided with two pieces, and the cover plate is fixedly connected to the upper and lower two through the fixing nut. The outer surface of the heat conducting sheet, the middle of the cover plate is provided with an air outlet, the upper surface of the cover plate around the air outlet is fixedly connected with a mounting seat, and the cooling fan is fixedly connected to the upper surface of the mounting seat through the fan fixing nut ;When the heat dissipation is slow, the surface temperature of the cover plate reaches a certain value, the temperature control switch will turn on the circuit of the cooling fan. At this time, the air enters from the air ducts at both ends of the box and flows through both sides of the heat-conducting sheet. The temperature drops rapidly, and the flowing air takes the heat out of the air outlet, which ensures the heat dissipation demand when the high-power power supply is used.

It also includes a temperature control switch, the temperature control switch is fixedly connected to the upper surface of the cover plate, and the input end of the temperature control switch is electrically connected to the output end of the external power supply, and the output end of the temperature control switch is electrically connected to the cooling fan .

Further, it also includes a sealing gasket and an end cover, the end cover is fixedly connected to the end of the heat dissipation oil cavity of the cover plate, and a sealing gasket is fixedly connected between the end cover and the heat conduction frame, the sealing gasket and In the middle of the end cap there is a wire head going out. The sealing gasket is fixedly connected to the end of the radiating oil cavity, and the radiating oil cavity is sealed by the pressing force after the end cover is fixed, and the oxidation of the oil can be prevented at the same time.

Further, it also includes a terminal and a fixing hole, the terminal is fixedly connected to the end of the copper bar, and each terminal is provided with a fixing hole through the end of the end cover. The terminals fixedly connected at the end of the copper bar can meet the overlapping of different forms of lines, and the fixing holes can make the connection more secure and convenient.

Further, it also includes baffles, and the baffles are provided with four baffles, and the four baffles are respectively fixedly connected to the outer surfaces of the corresponding end covers on both sides of each terminal. The setting of four baffles can effectively reduce the occurrence of accidental short circuit during the wiring process and protect the life safety of workers during wiring.

Further, it also includes a mounting plate and mounting screw holes, the mounting plate is provided with two in total, the two mounting plates are respectively fixedly connected to the outer surfaces of both sides of the heat conduction frame, and the upper surface of the mounting plate is spaced through to open mounting screws. hole. The setting of the mounting plate makes the fixing more convenient, and the multiple reinforced mounting screw holes facilitate the fixing of complex positions, which improves the convenience of use and installation.

Compared with the prior art, the beneficial effects of the present utility model are: the new high-voltage common box busbar has the following advantages:

1. The outer surface of the copper bar in the new high-voltage common box busbar is fixedly sleeved with an insulating heat-conducting sleeve, which can quickly transfer the generated heat to the heat-dissipating oil in the heat-dissipating oil cavity, and quickly export it to the outside through the heat-conducting frame. The fan dissipates the heat, avoiding the disadvantage of uneven heat dissipation and slow heat dissipation when the fan is only dissipating heat.

2. There are special fixed installation positions on the side of the box body, and there are multiple reinforced fixing screw holes, which can fix the box body in different complex environments, which further improves the practicability and effectively avoids the traditional single The disadvantage of fixing screw holes is not suitable for complex environments.

3. After fixed installation, the radiating oil in the oil cavity has the characteristics of non-conductivity, and the safety factor is further improved with the insulating heat-conducting sleeve, which is more easily accepted by people during the use process, and the market space is huge.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic diagram of the cross-sectional structure of the utility model.

In the picture: 1 copper bar, 2 heat conduction unit, 21 insulation heat conduction sleeve, 22 heat dissipation oil cavity, 23 air duct, 24 heat conduction frame, 25 heat conduction sheet, 3 heat dissipation unit, 31 fixing nut, 32 cover plate, 33 heat dissipation fan, 34 Air outlet, 35 mounting base, 36 fan fixing nut, 4 temperature control switch, 5 sealing gasket, 6 end cover, 7 wiring head, 8 fixing hole, 9 baffle plate, 10 mounting plate, 11 mounting screw hole.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-2 , the present utility model provides a technical solution: a novel high-voltage common box bus bar, comprising a copper bar 1 , a heat conduction unit 2 and a heat dissipation unit 3 ;

Copper bar 1: The outer surface of the copper bar 1 is fixedly sleeved with the insulating heat-conducting sleeve 21 in the heat-conducting unit 2; it also includes a terminal 7 and a fixing hole 8, and the terminal 7 is fixedly connected to the end of the copper bar 1, and each A fixing hole 8 is formed at the end of the terminal 7 passing through the end cover 6 . The terminal 7 fixedly connected at the end of the copper bar 1 can satisfy the overlapping of different forms of circuits, and the fixing hole 8 can make the connection more secure and convenient.

Heat-conducting unit 2: The heat-conducting unit 2 includes an insulating heat-conducting sleeve 21, a heat-dissipating oil cavity 22, an air duct 23, a heat-conducting frame 24 and a heat-conducting sheet 25. Three heat-dissipating oil cavities 22 are spaced apart inside the heat-conducting frame 24, and the upper and lower surfaces of the heat-conducting frame 24 are spaced apart from each other. A longitudinal air duct 23 is opened, and the frame adjacent to the air duct 23 forms a heat-conducting sheet 25. The middle part of the heat-dissipating oil cavity 22 is fixedly connected with a copper bar 1, and the outer surface of the copper bar 1 is fixedly connected with an insulating heat-conducting sleeve 21; When generated, it can be quickly transferred to the insulating heat-conducting sleeve 21 wrapped on the outer surface of the copper bar 1, and then the heat is transferred to the radiating oil immersed in the surrounding. The oil can quickly take away the local heat and keep the copper bar 1. Good surface temperature, the oil transfers heat to the heat-conducting sheet 25 fixedly connected to the outer surface of the heat-conducting frame 24, and also includes the mounting plate 10 and the mounting screw holes 11. There are two mounting plates 10, and the two mounting plates 10 are respectively It is fixedly connected to the outer surfaces of the two sides of the heat conducting frame 24 , and the upper surface of the mounting plate 10 is provided with mounting screw holes 11 at intervals. The arrangement of the mounting plate 10 makes the fixing more convenient, and the plurality of reinforced mounting screw holes 11 facilitate the fixing of complex positions, which improves the convenience of use and installation. It also includes a sealing gasket 5 and an end cover 6. The end cover 6 is fixedly connected to the end of the heat dissipation oil cavity 22 of the cover plate 32, and a sealing gasket 5 is fixedly connected between the end cover 6 and the heat conduction frame 24. The sealing gasket 5 and the middle of the end cover 6 have a terminal 7 passing through. The sealing gasket 5 is fixedly connected to the end of the heat dissipation oil chamber 22, and the heat dissipation oil chamber 22 is sealed by the pressing force after the end cover 6 is fixed, and the oxidation of the oil can be prevented at the same time. It also includes baffles 9 . There are four baffles 9 in total, and the four baffles 9 are respectively fixedly connected to the outer surfaces of the corresponding end caps 6 on both sides of each terminal 7 . The arrangement of the four baffles 9 can effectively reduce the occurrence of accidental short-circuits during the wiring process, and protect the life safety of workers during wiring.

Heat dissipation unit 3: The heat dissipation unit 3 includes a fixing nut 31, a cover plate 32, a cooling fan 33, an air outlet 34, a mounting seat 35 and a fan fixing nut 36. There are two cover plates 32, and the cover plates 32 are respectively fixed by The nut 31 is fixedly connected to the outer surfaces of the upper and lower heat conducting fins 25, the middle of the cover plate 32 is provided with an air outlet 34, and the upper surface of the cover plate 32 around the air outlet 34 is fixedly connected with a mounting seat 35, the cooling fan 33 is fixed by the fan nut 36 is fixedly connected to the upper surface of the mounting seat 35; when the surface temperature of the cover plate 32 reaches a certain value when the heat dissipation is relatively slow, the temperature control switch 4 turns on the circuit of the cooling fan 33, and the air flows from the air ducts at both ends of the box. 23 enters, and flows through both sides of the heat-conducting sheet 25, so that the temperature on the heat-conducting sheet 25 drops rapidly, and the flowing air takes the heat out from the air outlet 34, ensuring the heat dissipation requirement during high-power power supply.

The temperature control switch 4 is also included. The temperature control switch 4 is fixedly connected to the upper surface of the cover plate 32, and the input end of the temperature control switch 4 is electrically connected to the output end of the external power supply, and the output end of the temperature control switch 4 is electrically connected to heat dissipation. Fan 33.

When using:

When the heat is generated, it can be quickly transferred to the insulating heat-conducting sleeve 21 wrapped on the outer surface of the copper bar 1, and then the heat is transferred to the radiating oil soaked in the surrounding. The oil can quickly take away the local heat and make the copper bar 1. 1. To maintain a good surface temperature, the oil transfers heat to the heat-conducting sheet 25 fixedly connected to the outer surface of the heat-conducting frame 24. When the heat dissipation is relatively slow, the surface temperature of the cover plate 32 reaches a certain value, the temperature control switch 4 turns on the circuit of the cooling fan 33 , at this time, the air enters from the air ducts 23 at both ends of the box and flows through both sides of the heat-conducting sheet 25 , the temperature on the heat-conducting sheet 25 drops rapidly, and the flowing air takes the heat out from the air outlet 34 , which ensures the heat dissipation requirement when the power is supplied with high power. The sealing gasket 5 is fixedly connected to the end of the heat dissipation oil chamber 22, and the heat dissipation oil chamber 22 is sealed by the pressing force after the end cover 6 is fixed, and the oxidation of the oil can be prevented at the same time. The terminal 7 fixedly connected at the end of the copper bar 1 can satisfy the overlapping of different forms of circuits, and the fixing hole 8 can make the connection more secure and convenient. The arrangement of the four baffles 9 can effectively reduce the occurrence of accidental short circuits during the wiring process, and protect the safety of workers' lives during wiring. The installation of the mounting plate 10 makes the fixing more convenient, and the plurality of reinforced mounting screw holes 11 facilitate the fixing of complex positions, which improves the convenience of use and installation.

It is worth noting that, in this embodiment, the temperature control switch 4 is provided with a control button corresponding to the cooling fan 33, and the cooling fan 33 can be freely configured according to the actual application scene. It is recommended to use Shenzhen Junyeda Motor Technology Co., Ltd. The SanAce-Ac AC fan, the temperature control switch 4 can choose the ST-12 temperature control switch with an operating temperature of 45°±3°. The control switch 4 controls the operation of the cooling fan 33 using a method commonly used in the prior art.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A novel high-voltage common box busbar, characterized in that: comprising a copper bar (1), a heat conduction unit (2) and a heat dissipation unit (3); Copper bar (1): the outer surface of the copper bar (1) is fixedly sleeved with the insulating heat-conducting sleeve (21) in the heat-conducting unit (2); Heat conduction unit (2): the heat conduction unit (2) includes an insulating heat conduction sleeve (21), a heat dissipation oil cavity (22), an air duct (23), a heat conduction frame (24) and a heat conduction sheet (25). (24) Three radiating oil cavities (22) are spaced apart inside, the upper and lower surfaces of the heat conduction frame (24) are spaced apart with longitudinal air ducts (23), and the adjacent frames of the air ducts (23) form heat conduction A sheet (25), a copper bar (1) is fixedly connected to the middle of the cooling oil cavity (22), and an insulating heat-conducting sleeve (21) is fixedly connected to the outer surface of the copper bar (1); Heat dissipation unit (3): the heat dissipation unit (3) includes a fixing nut (31), a cover plate (32), a cooling fan (33), an air outlet (34), a mounting seat (35) and a fan fixing nut (36) There are two cover plates (32) in total, and the cover plates (32) are fixedly connected to the outer surfaces of the upper and lower heat conducting sheets (25) through fixing nuts (31) respectively. The cover plates (32) An air outlet (34) is opened in the middle of the air outlet (34), a mounting seat (35) is fixedly connected to the upper surface of the cover plate (32) around the air outlet (34), and the cooling fan (33) is fixed by the fan fixing nut (36). connected to the upper surface of the mounting seat (35); Wherein, it also includes a temperature control switch (4), the temperature control switch (4) is fixedly connected to the upper surface of the cover plate (32), and the input end of the temperature control switch (4) is electrically connected to the output end of the external power supply, The output end of the temperature control switch (4) is electrically connected to the cooling fan (33). 2. A new type of high-voltage common box busbar according to claim 1, characterized in that it further comprises a sealing gasket (5) and an end cover (6), and the end cover (6) is fixedly connected to the cover plate (32). ) at the end of the heat dissipation oil cavity (22), and a sealing gasket (5) is fixedly connected between the end cover (6) and the heat conduction frame (24), the sealing gasket (5) and the end cover (6) There is a terminal (7) passing through the middle of it. 3. A new type of high-voltage common box busbar according to claim 2, characterized in that it further comprises a terminal block (7) and a fixing hole (8), and the terminal block (7) is fixedly connected to the copper bar (1) and the end of each terminal (7) passing through the end cover (6) is provided with a fixing hole (8). 4. A new type of high-voltage common box busbar according to claim 1, characterized in that: it further comprises baffles (9), the baffles (9) are provided with a total of four, and the four baffles (9) are respectively It is fixedly connected to the outer surface of the corresponding end cover (6) on both sides of each terminal block (7). 5. A new type of high-voltage common box busbar according to claim 1, characterized in that it further comprises a mounting plate (10) and a mounting screw hole (11), the mounting plate (10) is provided with two, two The mounting plates (10) are respectively fixedly connected to the outer surfaces on both sides of the heat conduction frame (24), and mounting screw holes (11) are formed through the upper surfaces of the mounting plates (10) at intervals.

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