840results about "Cooling bus-bar installations" patented technology

A busway joint pack includes a pair of opposing phase connector plates, a first insulating sheet, a second insulating sheet, a first side panel, and a second side panel. The busway joint pack passively transfers thermal energy generated in its core to an exterior housing such that the thermal energy is dissipated or transferred to the surrounding environment, which reduces the internal temperature of the joint pack. The first and the second insulating sheets are positioned and selected with a particular thermal resistance and dimensions such that a portion of the thermal energy generated in the core of the busway joint pack is transferred from the pair of opposing phase connector plates to the external housing.

A system for connecting motor drives to each other is disclosed that does not require the use of wire or tools. The system includes an adapter plug and bus bar modules that connect to each other at a conductive receptacle of the adapter plug to define a splice joint at the point of connect of the bus bar modules. The bus bar modules may include insulating covers and insulating clips may overlie the splice joints so that the system is substantially devoid of exposed surfaces of its conductive materials.

A band-shaped bus bar includes a flat part disposed at the center thereof, and a curved part at both ends in a length direction. A receiving groove for receiving the bus bar is extended along a circle in an insulating holder. The flat part of the bus bar is received in the receiving groove in a curved manner.

A switchboard copper busbar heat dissipating device for dissipating heat from a copper busbar inside a switchboard includes a thermally-conductive electrically-insulating plate having a first surface connected to the copper busbar and a second surface; at least one heat pipe having a first end connecting to the second surface of the thermally-conductive electrically-insulating plate and a second end protruding out of the switchboard; and a plurality of cooling fins connected to the second end of the heat pipe and disposed outside the switchboard. Hence, the switchboard copper busbar heat dissipating device is conducive to miniaturization of a switchboard, enhancement of efficiency of heat dissipation of the switchboard, compliance with the Ingress Protection (IP) Ratings of the switchboard (regarding waterproofing and dust-proofing thereof), and avoiding a waste of energy.

The invention provides a bidirectional exhaust cable cooler, which comprises a main body part and exhaust parts (10), wherein the main body part comprises an upper semi-circular part (1) and a lower semi-circular part (2), and a cylindrical coolant barrier layer is arranged on the outer circumferential surface of a cylinder; circular air holes (27) are also formed in the cylindrical coolant barrier layer, and the left and right ends of the upper semi-circular part (1) and the lower semi-circular part (2) are respectively provided with bearing semi-circular rings (5), and after the upper semi-circular part (1) and the lower semi-circular part (2) are buckled to form a cylinder, the bearing semi-circular rings (5) form bearing circular rings which are respectively positioned at the two ends of a cavity and are used for bearing a cable (9); and two exhaust parts (10) are respectively arranged at the left and right ends of the cylinder.

In order to dissipate heat losses from the inner conductor (21), the circuit breaker (20) having an elongated inner conductor (21) and an outer conductor (22) which surrounds the inner conductor (21) like a housing has at least one heat pipe (1) which extends from the inner conductor (21) to the outer conductor (22) and has an insulating hollow body (5) in order to form an electrical insulating gap (7). The heat pipe (1) advantageously has a flexibly deformable section (9). The heat pipe (1) can run in a supporting insulator (24) which supports the inner conductor (21). In addition to a working medium, the heat pipe (1) advantageously also contains an auxiliary gas which results in an enhanced dielectric strength at low temperatures.

A thermally efficient electrical enclosure includes a busbar, a metallic heat sink, and an electrical insulator. The busbar is positioned entirely within the enclosure and electrically insulated from the enclosure. The metallic heat sink is attached to a wall of the enclosure. The electrical insulator physically contacts the busbar and is at least partially wrapped around at least two non-parallel surfaces of a portion of the metallic heat sink such that the metallic heat sink is electrically insulated from the busbar. The metallic heat sink is configured to transfer thermal energy or heat from the busbar to the enclosure such that the thermal energy is lost or transferred to the surrounding environment, which reduces the temperature of the busbar and the amount of copper needed for the busbar without reducing the rating of the enclosure.

The subject of the invention is an electric power switchgear, an insulating radiator, and a method for installing the radiator in an electric power switchgear, and in particular in a medium or high voltage switchgear. The electric power switchgear comprising working elements placed in the housing and connected with busbars and branches, and cooled with air, is characterized in that it contains at least one insulating radiator made of thermoplastic material of increased thermal conductivity λ≧2 W / mK, which is placed in the electric field of the switchgear and which is connected by a non-permanent fastening to at least one busbar or / and at least one branch. The insulating radiator designed for the switchgear is an injection molding including a base plate to whose top face a system of heat evacuating elements of identical or diverse shape is attached, and to its side surfaces elastic assembly catches are fixed.

A high ampacity busbar includes a pair of oppositely facing bowl-shaped conductors, each of whose cross sections resembles half of a hexagon or an open isosceles trapezoid, separated by an air gap in both horizontal and vertical configurations. The air gap increases cooling efficiency by natural convection by exposing more surface area of the conductors directly to the air flow within the electrical distribution equipment cabinet. As a result, the overall temperature of the bus system is reduced. The shaped conductors have smoother transitions presented to the electrical current between the bends of the conductors. These smooth transitions improve current distribution throughout the conductor, reducing skin effects. As a result of improved thermal dissipation and reduced skin effects, the amount of copper needed to maintain the same ampacity is significantly reduced. Magnetic shields can be placed between adjacent busbars, reducing proximity effects.

A busway joint pack for joining busway conductor sections has a heat sink assembly with an interstitial heat sink portion sized to fit between its connector plates; an exterior heat sink portion projecting beyond the exterior surface of a side panel of the joint pack; with the interstitial heat sink portion having thermal conduction to the exterior heat sink portion; to attain cooler operation. The heat sink may include thermally conductive dielectric materials or metals, or both, or other thermally conductive materials used with the thermally conductive dielectric materials.

A wind turbine is disclosed. The wind turbine may comprise a tower having a top and a base, a generator located near the top of the tower, a main shaft operatively connected to the generator, a hub operatively connected to the main shaft, a plurality of blades extending from the hub, and at least one electrical conductor connected to the generator, the conductor configured to carry electric power from the generator to the base of the tower. The wind turbine may further comprise a conduit enclosing the conductor with the conduit having a lower air inlet opening and an upper air outlet opening. The conduit removes heat generated by the conductor by inducing a chimney effect, causing the heat of the conductor to rise up the conduit and out of the tower through the upper air outlet opening, while drawing in air from outside the tower through the lower air inlet opening.

The invention discloses a fireproof bus duct. An upper cover board comprises an upper heat conduction bending board with a concave groove and a heat dissipating board on the concave groove. The heat dissipating board is provided with heat dissipating holes, a top cover is arranged on the heat dissipating board, and a certain sealing space is formed between the top cover and the heat dissipating board. A lower cover board comprises a lower heat conduction bending board with an arch and a bottom board located at the bottom of the arch. The concave groove and the arch are embedded between outer side boards. A conducting bar is arranged between the concave groove and the arch, the left side and the right side of the conducting bar are provided with inner side boards, fireproof insulating cushion blocks are arranged on the upper portion and the lower portion of the conducting bar, fireproof aluminum silicate wool felt and fireproof boards are arranged between the inner side boards and the corresponding outer side boards, in concave groove and on the arch, and a conducting strip of the conducting bar is covered with a mica tape. According to the fireproof bus duct, the heat produced by the conducting bar can be dissipated in time, the spontaneous combustion of the conducting bar due to the high temperature is avoided, and the service life of the bus duct is prolonged; the bus duct has good fireproof performance, and even when the outside breaks out the fire, the conducting bar cannot be burned, and the bus duct can still normally supply power.

A cooling device is disclosed for an electrical operating means, which has a surface to be cooled. The cooling device comprises a coolant, a peripheral wall, whose interior defines a volume for the coolant, a fastening for fastening the cooling device to the electrical operating means, and a contact-pressure means. The peripheral wall has a thermally conductive contact wall with a contact face, which is designed for areal contact with the surface to be cooled. The contact-pressure means mechanically prestresses the contact wall in order to produce an areal contact pressure of the contact face against the surface to be cooled when the cooling device is fastened to the electrical operating means.

The high-power switch (1) according to the invention, with at least one switch pole (2) for guiding and switching an electric current which flows in one current flow direction when the switch is in the closed state, with the at least one switch pole (2) containing an inner conductor (3) which carries the current and containing an outer conductor (4) which is connected to ground potential (G) and carries a return current in the opposite direction to the current, with the outer conductor (4) being in the form of a housing (4) which surrounds the inner conductor (3), is characterized in that a cooling rib arrangement (5) which contains cooling ribs (9) is arranged on the outer conductor (4). At least some of the cooling ribs are advantageously arranged on a separate part of the housing (4), which is not the same as the part (15) of the housing (4) which is at a minimum distance from the inner conductor (3). The cooling rib arrangement (5) advantageously has cooling ribs both outside the housing (4) and inside the housing (4).

The invention provides a heat dissipation type bus duct. The bus duct comprises at least two bus bodies connected by a connection device. The connection device comprises a connecting seat, two ends of the connecting seat are connected with one end of corresponding bus body respectively, the connecting seat comprises an upright post, an upper connecting plate and a lower connecting plate, the upper and lower ends of the upright post are connected with the upper connecting plate and the lower connecting plate vertically, the bus bodies are connected through the connecting seat comprising the upright post, the upper connecting plate and the lower connecting plate, and ventilation passages are formed between the upper connecting plate and the lateral plates of the bus bodies, as well as the lower connecting plate and the lateral plates of the bus bodies, so as to increase air circulation. Therefore, the heat dissipation effect of a bus is improved and a bus system has a simple structure.

In order to dissipate heat losses from the inner conductor (21), the circuit breaker (20) having an elongated inner conductor (21) and an outer conductor (22) which surrounds the inner conductor (21) like a housing has at least one heat pipe (1) which extends from the inner conductor (21) to the outer conductor (22) and has an insulating hollow body (5) in order to form an electrical insulating gap (7). The heat pipe (1) advantageously has a flexibly deformable section (9). The heat pipe (1) can run in a supporting insulator (24) which supports the inner conductor (21). In addition to a working medium, the heat pipe (1) advantageously also contains an auxiliary gas which results in an enhanced dielectric strength at low temperatures.

The invention provides a bus duct, comprising a bus, mounting heads, a cover plate and side plates, wherein the cover plate comprises a bottom surface plate and side face plates, two sides of the bottom surface plate are respectively connected with the side face plates, grooves are formed in joints between the bottom surface plate and the side face plates, the top of the bottom surface plate is provided with a plurality of water grooves and water outlets for water drainage, the water grooves are communicated with the water outlets, the bottom of the bottom surface plate is provided with a raised rib for separating a phase line with a ground wire, the bottom surface plate is provided with strip-shaped holes for the mounting heads connected with the bus to pass through, each side plate is shaped like a Chinese character ao, and the bottom of the inner side of each side plate is provided with a plurality of heat radiation grooves. The bus duct is reasonable in structure design, good heat radiation of the bus duct can be ensured, inner cavity water accumulation is avoided, inserting connection is convenient, and the use is more facilitated.

The present disclosure provides a conductive member for a circuit breaker high voltage portion conductor assembly, the conductive member including a body with a transfer portion and a coupling portion. The body transfer portion has an electro-thermally efficient contour. That is, the body transfer portion has an electrically efficient contour and a thermally efficient contour. The body transfer portion includes a number of slots defining fins. In this configuration, the body transfer portion distributes current generally evenly across a cross-sectional area of the conductive member body. Further, the fins provide heat dissipation via convection.

In one embodiment the present invention is an MLB assembly 6 that is made up of two circular terminal conductor ends 2, 4. Multiple fins 10 radially extend from each of the two circular terminal conductor ends 2, 4, and each fin on each of the two circular terminal conductor ends has a matching fin on the other of the two circular terminal ends. Multiple flexible connectors 8 are attached to the fins 10 that electrically connects the terminal conductors 2, 4. The flexible connectors 8 also allow for a difference of movement between the two circular terminal ends. Current flowing through the MBL assembly 16 is evenly distributed 18 through the plurality of flexible connectors.

The invention belongs to the technical field of cable installation, particularly relates to a bus duct and a bus duct joint thereof. Aiming at the problems that the resistance of a bus duct at a jointis large, heating is easy to occur, particularly, the temperature of the core-penetrating bolt is easily increased, and some core-penetrating bolts need to be fastened regularly, the following schemeis provided: the bus duct comprises two main bodies, conducting bars are arranged in the two main bodies, inclined surface openings are formed in the top ends and the bottom ends of one sides of theconducting bars, protective sleeves are arranged outside the two main bodies, and circular through holes are formed in the top ends and the bottom ends of the protective sleeves. According to the invention, the moving plate is moved through the fastening bolts, so that an insulating sheet moves until the two sides of each conducting strip make contact with the conducting bar, the fastening bolts continue to be twisted, the conducting strips begin to be bent and are tightly attached to the openings of the slopes of the conducting bars, the contact area is increased, every two adjacent conducting strips clamp the conducting bar, the fastening bolts are located on the two sides of the protective sleeve, the fastening bolts are not prone to temperature rise, and the stability of the fasteningbolts is improved.

An apparatus is provided that includes a heat pipe and a heat sink that includes a foam (e.g., a metal foam, a carbon foam, and / or a graphite foam) and is configured to exchange thermal energy with the heat pipe. For example, the heat pipe can include a thermal energy receiving portion and a thermal energy rejecting portion. The heat sink can be configured to receive thermal energy from a busbar and the thermal energy receiving portion can be configured to receive thermal energy from said heat sink. Alternatively, the thermal energy receiving portion can be configured to receive thermal energy from a busbar, and the heat sink can be configured to receive thermal energy from the thermal energy rejecting portion.

An electrical device includes an enclosure having an interior surface, at least one bus bar, and an element enclosing at least a portion of the bus bar, wherein the element includes a first surface contacting the interior surface and is configured to transfer heat from the bus bar to the enclosure and configured to provide electrical isolation between the enclosure and the bus bar.

A propulsion system for an aircraft includes an electric power source and an electric propulsion assembly having an electric motor and a propulsor, the propulsor powered by the electric motor. The propulsion system also includes an electric power bus electrically connecting the electric power source to the electric propulsion assembly. The electric power source is configured to provide electrical power to the electric power bus, and the electric power bus is configured to transfer the electric power to the electric propulsion assembly at a voltage exceeding 800 volts.

The invention discloses a bus slot for easy installation, which comprises a top plate, a silica gel sheet, a pressure plate adjusting bolt, a pressure plate, a copper bar, a slide block, a U-shaped shell, a copper bar clamp seat, a threaded column, a threaded cylinder, a mounting bottom plate, a clamp block, a fastening bolt, a U-shaped mounting plate end cover, a sliding slot and a copper bar socket. A silica gel sheet is attached to the bottom of the pressing plate of the invention, the silica gel sheet can not only fix the copper bar well to avoid the movement of the copper bar, and it canalso take away part of the heat generated by the bus slot when it is working, conducive to the heat dissipation of the bus slot, at the same time, the copper bar card socket is installed in the U-shaped shell in a clamping manner, The bus slot reduces the use of screws and facilitates the assembly of the busbar groove. When the mounting surface is not on the same horizontal plane, the rotatable screw barrel changes the distance between the mounting bottom plate and the U-shaped shell, and finally the busbar groove is kept horizontal after installation, no gasket is needed, the mounting efficiency of the busbar groove is improved, and the installation of the busbar groove is beneficial to the busbar groove.

The invention discloses a bus duct having a protective cap structure. The bus duct comprises a bus placing duct and a bus duct protective cap. A first insulating plate is fixedly connected on the internal wall of the bus placing duct. A conductor is fixedly connected on the surface of the first insulating plate. An elevating rod is fixedly connected on the internal wall of the bus placing duct. The surface of the first insulating plate is fixedly connected with the surface of the elevating rod. The surface of the conductor is fixedly connected with the surface of the elevating rod. A first ventilation and heat radiation chamber is arranged on the surface of the elevating rod and the internal wall of the bus placing duct. According to the bus duct having the protective cap structure, a protective cap rain shield is arranged on the surface of the bus duct protective cap, and the surface of the protective cap rain shield is provided with draining arc chutes so that the effects of cutting off rainwater and preventing rainwater intrusion can be achieved, and the problems that multi-aspect protection of the common bus duct is not facilitated, the safety problem is liable to occur and safe use of the bus duct is influenced to a certain extent can be effectively solved.