75results about "Contacts heating/cooling" patented technology

The invention discloses a circuit breaker, a control method, an electronic device, a power system and a storage medium. The circuit breaker comprises a moving and static contact assembly, a semiconductor cooler and a controller. Wherein the semiconductor cooler is arranged between two adjacent paths of moving and static contact assemblies, the semiconductor cooler is thermally coupled with at least two paths of moving and static contact assemblies, and the controller is configured to control the semiconductor cooler to cool the moving and static contact assemblies when the circuit breaker is in a specific condition. The semiconductor cooler can realize heat dissipation of the moving and static contact assemblies on the inner side of the shell, so that heat is prevented from being concentrated between the moving and static contact assemblies on the inner side of the shell, damage and aging of the circuit breaker are avoided, and the service life of the circuit breaker is prolonged.

A thermal management device 100 for a circuit breaker includes: a heat pipe having an evaporator section, an adiabatic section and a condenser section; a busbar having a first portion including at least a portion of the adiabatic section of the heat pipe; a conducting busbar having a first end, a second end opposite the first end and a groove disposed on a top surface of the conducting busbar, the first end disposed adjacent to primary contacts, the second end integrated in the first portion of the busbar, the groove extending from the first end to the second end and including the evaporator section and the at least a portion of the adiabatic section of the heat pipe embedded therein; and an array of fins integrated to the second portion of the busbar, the condenser section of the heat pipe extending through the array of fins.

According to the technical scheme, the heat dissipation device comprises a shell, a fixing assembly, a connecting assembly and a cooling assembly, the fixing assembly and the connecting assembly are both installed in the shell, an opening is formed in the surface of the shell, the cooling assembly is installed in the shell and arranged at the opening, the connecting assembly comprises a connecting pipe, and the connecting pipe is connected with the fixing assembly. The circuit breaker contact is arranged in the connecting pipe, the cooling assembly comprises a fixing shell, a motor, an impeller, an outer cooling pipe and an inner cooling pipe, a storage bin used for containing cooling liquid is arranged in the fixing shell, the impeller is installed in the storage bin and connected with the motor, the storage bin is communicated with the inner cooling pipe, the inner cooling pipe is communicated with the outer cooling pipe, and the outer cooling pipe wraps the connecting pipe. According to the utility model, the cooling assembly with a water cooling function is adopted, and heat is quickly transferred by virtue of a good heat conduction effect of cooling liquid, so that the purpose of active heat dissipation is achieved.

A heat dissipation member (100) has a base material (2) mainly composed of copper and a coating layer (3) covering the surface of the base material (2), the coating layer (3) has a ceramic layer (3S) mainly composed of an oxide of a metal element having a greater ionization tendency than copper, and has a diffusion layer (4) at the interface between the base material (2) and the coating layer (3) in which the metal element diffuses into copper, and the metal element is zinc or nickel.

The present invention relates to a three-position disconnector switch, comprising: an earthing contact (1), a power out contact (2), a power in contact (3), a piston (4), and a threaded rod (5). A length of the piston is such that in a first switch position an outer surface of a wall of the piston makes an electrical contact between the power out contact and the power in contact. The length of the piston is such that in a second switch position the outer surface of the wall of the piston does not make an electrical contact with either the earthing contact or the power in contact. The length of the piston is such that in a third switch position the outer surface of wall of the piston makes an electrical contact between the earthing contact and the power out contact. The piston comprises an inner threaded section (7) configured to engage with the threaded rod, wherein a length of the inner threaded section is less than the length of the piston. Rotation of the threaded rod is configured to engage with the inner threaded section to move the switch between the different switch positions.

The invention relates to a circuit breaker comprising:-a switching element (2); -a first terminal (1); -a second terminal (1); a heat sink (7); and-an air duct (8); wherein the switching element comprises two contacts, the two contacts are configured to be in contact with each other and can also be separated from each other, the two contacts are a fixed contact and a movable contact, and when the two contacts are separated from each other, the first terminal is electrically connected to one of the two contacts, and when the two contacts are electrically connected to the other of the two contacts, the second terminal is electrically connected to the other of the two contacts. The second terminal is electrically connected to the other one of the two contacts; wherein the heat sink is connected to the first part of the circuit breaker; wherein the first opening end of the air pipe is connected to the radiator, so that air leaving the radiator can enter the air pipe; and wherein at least a portion of the air duct is oriented vertically or oriented at an angle to the vertical direction.

To provide a conductive member with a cooling structure which can reduce the weight and the size.SOLUTION: A conductive member 1 with a cooling structure includes: a conductor plate 11; a groove member 12 which extends along a partial shape 11a of the conductor plate 11, has a shape such that a flow channel groove 121 constituting a part of a coolant flow channel 1a flowing a coolant therein is provided, and is formed of an insulating resin; a metal cover 13 that is a metal cover constituting a coolant flow channel 1a by blocking a groove opening 121a of the flow channel groove 121, and with which the conductor plate 11 is overlapped; a pair of coolant inlet and outlet 14 provided on the metal cover 13, and a heat transfer material 15 which is sandwiched between the metal cover 13 and the conductor plate 15, and is brought into close contact with the metal cover 13 and the conductor plate 11.SELECTED DRAWING: Figure 2

The application discloses a vacuum switch fluid heat dissipation device and method and a vacuum switch, relates to the technical field of high-voltage electrical apparatuses, and comprises a fluid circulation pipeline arranged in a static contact and a static guide rod; the fluid circulation pipeline is connected with an external circulation cooling system. By reasonably distributing the fluid circulation pipeline in the switch contact and matching the distribution characteristics of the high-temperature area of the switch contact, the fluid medium can be fully utilized for heat dissipation according to the temperature characteristic distribution of the switch contact, the high-temperature area of the switch contact can be favorably radiated, the heat dissipation area of the switch contact is larger, the heat dissipation efficiency is higher, and the influence of high temperature on the switch contact is avoided. The vacuum switch fluid heat dissipation device is applied to the vacuum switch, the switch contact in the vacuum switch is effectively cooled and radiated, the aging of the contact material and the guide rod material is avoided, the service life of the contact and the guide rod is prolonged, and the normal work and safe operation of the vacuum switch are ensured.

A gas-insulated switch includes: a heat generator that generates heat when principal current flows; and an electrical connector (40) that is a portion of electrical connection between a rod-shaped conductor and a cylindrical conductor forming a conduction path of the principal current, wherein the electrical connector (40) includes: a plurality of ring-shaped conductors (84a, 84b, 84c, 84d) placed between the rod-shaped conductor (88) and the cylindrical conductor (89), the plurality of ring-shaped conductors (84a, 84b, 84c, 84d) includes first ring-shaped conductors (84b, 84c, 84d) and a second ring-shaped conductor (84a), the second ring-shaped conductor (84a) being disposed at a position more distant from the heat generator than the first ring-shaped conductors (84b, 84c, 84d), and an insulating layer (85) is provided between the first ring-shaped conductors (84b, 84c, 84d) and the cylindrical conductor (89) or between each of the first ring-shaped conductors (84b, 84c, 84d) and the rod-shaped conductor (88).

The utility model provides a copper contact with an arc protection structure, which relates to the technical field of copper contacts and comprises a base, the top of the base is fixedly connected with a shell and a plurality of supporting rods, and permanent magnet rings are fixedly connected among the top ends of the supporting rods. The outer surface of the permanent magnet ring is fixedly connected with a spiral heat dissipation plate, a surrounding wire is spirally wound on the outer surface of the permanent magnet ring, one end of the surrounding wire is electrically connected with an output wire, and the other end of the surrounding wire is electrically connected with a receiving wire. According to the utility model, an external magnetic field is applied through the permanent magnet ring to change the path of an electric arc, so that the path of the electric arc deflects, the electric arc is easier to disperse and extinguish, and meanwhile, the electric arc can be guided to a heat absorption area at the spiral heat dissipation plate to absorb heat generated by the electric arc, thereby reducing the temperature of the electric arc and reducing the damage of the electric arc to a surrounding wire; therefore, the arc-proof effect is achieved.

The invention discloses an arc extinguishing and fire suppression device for a ship power system, and relates to the technical field of power equipment, and the device comprises a moving assembly which is disposed in the power system; the fixed assembly is arranged corresponding to the movable assembly; the connecting joint is fixed at one end, opposite to the moving assembly, of the fixed assembly; the moving contact is fixed in the center of the interior of the moving assembly; the static contact is fixed in the fixing assembly and corresponds to the moving contact; and the arc extinguishing device is fixed in the connecting joint. The stop block is arranged, the distance between the contacts is rapidly increased, so that the electric arc is cooled and lengthened, the extinguishing of the electric arc is promoted, and the electric arc can be rapidly cooled, thermal dissociation is inhibited and the arcing time is shortened in cooperation with the arc extinguishing device.

A circuit breaker includes upper and lower terminals, a switching element, an insulation housing, a heat collector, and a heatsink. The upper terminal is connected to a fixed contact of the switching element. The lower terminal is connected to a moveable contact of the switching element. The insulation housing at least partially surrounds the upper and lower terminals, and the switching element. The heat collector is partially embedded within the insulation housing. The heat collector is separated from the upper and lower terminals, and the switching element. A surface of the heat collector facing outwards from the circuit breaker is uncovered and connects to the heatsink.

The invention provides an electrical contact assembly. The electrical contact assembly comprises an electrical contact, a laminated soldering lug and a supporting piece, the laminated soldering lug is arranged between the electric contact and the supporting piece and is connected with the electric contact and the supporting piece in a welding manner; one side face of the laminated soldering lug is a first soldering face, the other side face opposite to the first soldering face is a second soldering face, the first soldering face is welded to the electrical contact, and the second soldering face is welded to the supporting piece; the laminated soldering lug is made of a layered composite material and comprises 2N + 1 material layers, the (2N + 1) th material layer in the laminated soldering lug is made of silver alloy, the 2Nth material layer in the laminated soldering lug is made of copper or copper alloy, and N is a positive integer greater than 0. According to the invention, through the technical means of setting the laminated soldering lug of the solder layer as the multilayer material layer, the temperature rise of the electrical contact assembly is reduced, and the problem of slippage failure of the electrical contact caused by resistance heat of the solder layer is avoided, so that the overload tolerance capability of a switching electric appliance product is improved, and the service life of the switching electric appliance product is prolonged.

The present invention relates to a circuit breaker, comprising: - a switching element (2); - a first terminal (1); - a second terminal (1); - a heatsink (7); and - an airduct (8); wherein the switching element comprises two contacts configured to be brought into contact with each other and configured to be separated from each other, wherein the two contacts are a fixed contact and a moveable contact, and wherein when the two contacts are separated from each other the first terminal is electrically connected to one of the two contacts and the second terminal is electrically connected to the other of the two contacts; wherein the heatsink is connected to a first part of the circuit breaker; wherein a first open end of the airduct is connected to the heatsink, such that air exiting the heatsink can enter the airduct; and wherein at least a portion of the airduct is oriented vertically or oriented at an angle to the vertical.

A relay device includes a first contact, a second contact, a first conductor, a second conductor, a housing, and a heat transfer member. The first contact and the second contact are switchable between a state of being close to each other and a state of being separated from each other. The first contact is electrically coupled at the first conductor. the second contact is electrically coupled at the second conductor. The housing accommodates the first contact, the second contact, the first conductor, and the second conductor. The heat transfer member is higher in thermal conductivity than the housing. The heat transfer member extends from outside the housing to inside the housing and is in contact with one or both of the first conductor and the second conductor.

The utility model discloses a moving contact piece, a contact assembly applied by the moving contact piece, and a load switch for a gas-insulated switchgear. The moving contact piece comprises at least two cutter bodies arranged in parallel, a connecting part is arranged in the middle of each cutter body, insulating assemblies are detachably arranged at the two ends of each cutter body, each insulating assembly is composed of a dish-shaped insulating piece, a threaded connecting piece and a fixing piece, and a hollow cavity is formed to enhance the insulating effect. Innovatively, the moving contact piece is further provided with a thermal shrinkage piece and a thermal expansion piece which are located on the outer side of the insulator and in the cavity respectively, and by means of the thermal expansion and cold contraction characteristics of materials, the length of the insulator is automatically adjusted when the moving contact is heated, the creepage distance is increased, and the insulation performance is improved. According to the contact assembly and the load switch provided by the utility model, the heat dissipation performance and the insulation performance of the moving contact piece are effectively improved by adopting the unique design of the insulation assembly, the thermal shrinkage piece and the thermal expansion piece. Meanwhile, the length of the insulator can be automatically adjusted when the moving contact is heated, the creepage distance is increased, and the operation safety of an electric appliance is improved.

The utility model relates to the technical field of bridge-type contact structures, and discloses a bridge-type contact structure with a heat dissipation function, which comprises a bus copper bar and contact bridge mounting pieces, the contact bridge mounting pieces are arranged on the upper side and the lower side of the bus copper bar, a fixing plate is fixedly arranged on the bus copper bar, and the fixing plate is connected with the contact bridge mounting pieces; a plurality of contact bridges and spring pieces are arranged in the contact bridge mounting piece, and the spring pieces are mounted above the contact bridges; and a plurality of heat dissipation grid sheets are arranged on the contact bridge mounting piece. According to the utility model, the plurality of heat dissipation grid sheets are used to substantially reduce temperature rise, the spring sheet is used to press the contact bridge, the balance of pressure at two ends of the contact sheet and the assembly efficiency are substantially improved, the contact bridge installation member is positioned and fixed on the upper and lower sides of the bus copper bar through the fixing plate, and then the heat dissipation grid sheets are used to dissipate heat of the bridge-type contact. The contact surface area with air is increased, the temperature rise is effectively reduced, the contact oxidation risk is reduced, conductivity and heat dissipation are considered, and a good heat dissipation function is achieved.

A circuit breaker includes: a housing having a first side and a second side opposite to the first side in a first direction, in which a first contact assembly, a second contact assembly, a third contact assembly, and a fourth contact assembly are sequentially arranged from the first side to the second side; the circuit breaker further comprises a connecting line, and the two ends of the connecting line are electrically connected to the second contact assembly and the third contact assembly respectively. The circuit breaker further comprises a first heat conduction piece and a second heat conduction piece, the two sides of the first heat conduction piece are in insulated thermal connection with the first contact assembly and the second contact assembly respectively, and the two sides of the second heat conduction piece are in insulated thermal connection with the third contact assembly and the fourth contact assembly respectively.

The utility model provides a static contact structure and a switching device, and relates to the technical field of electrical equipment. The static contact structure provided by the utility model comprises a contact piece, a contact point, a connecting block and a terminal strip. The contact is connected to one side of the contact piece and used for being matched with a moving contact structure, the connecting block and the terminal strip are connected to the other side of the contact piece at intervals, and the connecting block has guidance quality. In the direction from one side of the contact piece to the other side of the contact piece, the projection of the connecting block covers the projection of the contact. As such, the connection block may also provide a flow path for the current. Through the arrangement of the connecting block, the sectional area of a part used for bearing current between the contact and the terminal strip can be larger, so that the current-carrying capacity of the part is larger, the temperature rise problem at the static contact structure is improved, and the temperature rise of a switching device carrying the static contact structure can be reduced.

Power distribution unit (1) with at least two electrical connection areas, namely at least one first electrical connection area (2, 2') and at least one second electrical connection area (3, 3'), wherein the first electrical connection area (2, 2') has at least one fixed first electrical contact element (4a-4g) and the second electrical connection area (3, 3') has at least one fixed second electrical contact element (5a-5g), wherein the first electrical contact element (4a-4g) and the second electrical contact element (5a-5g) are electrically connectable and disconnectable via at least one movable third electrical contact element (6a-6g), wherein the third electrical contact element (6a-6g) is biased into a switching position (A, B) via at least one elastic element (7) and can be actuated into at least one other switching position (A, B) via an actuator unit (8),wherein the actuator unit (8) comprises at least one actuator (9) and at least one switching shaft (10) which is movable via the actuator and, depending on the actuated switching position (A, B), either leaves the third electrical contact element (6a-6g) in the pre-tensioned switching position (A, B) or moves it against the spring force of the elastic element (7) into at least one other switching position (A, B), wherein the switching shaft (10) drives a switching wheel (32) via a drive wheel (30) and the combination of switching wheel (32)-drive wheel (30) constitutes a stepping mechanism (41).

The invention relates to a smart park energy operation and maintenance management method based on big data applied to the technical field of energy operation and maintenance management, through the design of a fault prediction unit and a power utilization redistribution unit, at least two-stage reselection can be performed on power utilization equipment, so that the power supply mode of the power utilization equipment is maintained in a safe and stable state, and the power utilization efficiency of the power utilization equipment is improved. Compared with the prior art, the occurrence of non-planned power failure is greatly reduced, and meanwhile, the economic loss caused by the non-planned power failure to the production activity of the smart park is effectively reduced; by matching with the arrangement of the contact precooling unit, the switch contact of the static switch STS can be subjected to targeted precooling in advance before power supply switching, the temperature peak value of the switch contact after switching can be effectively reduced in the longitudinal direction, the cooling time of the switch contact after switching can be reduced in the transverse direction, and the power supply switching efficiency can be improved. Therefore, stable switching of the static switch STS to the power supply mode is effectively maintained, intelligent power supply in the park is effectively maintained, and stable operation of electric equipment in the park is ensured.

A switch unit and a switch cabinet, the switch unit is arranged in the switch cabinet, the switch unit comprises: a static contactor having at least one contact piece; at least one set of knife switches movable between a closed position and an open position to contact or separate from the corresponding contact piece to make the switch unit in a closed state or an open state; wherein the static contactor further comprises a heat sink, and a chamfer is provided between the heat sink and the contact piece, and the heat sink is configured to dissipate heat at the static contactor to the outside.

A battery distribution unit (100) for a battery module (102) has a housing (110) including a bottom (120) configured to mount to a battery housing (104) of the battery module and including a component cavity (114). A contactor (140) received in the component cavity has a contactor housing (150) having a top end (154) and a bottom end (156). Terminals (242) at the bottom end of the contactor are coupled to corresponding termination ends (170) of corresponding stationary contacts (160) and a heat exchanger cap (134) at the bottom end of the contactor. The heat exchanger cap is disposed in the component cavity at the bottom of the housing. The heat exchanger cap is in thermal communication with the stationary contacts of the contactor and is configured to be in thermal communication with the battery housing of the battery module to dissipate heat from the stationary contacts into the battery housing of the battery module.

An electrical distribution unit (1) comprising at least two electrical connection regions, having respectively at least a first and a second fixed electrical contact element that can be electrically connected and disconnected via at least a third movable electrical contact element (6a-6g), pre-stressed in a switching position (A, B) via at least one elastic element (7), and actuated in at least one other switching position (A, B) via an actuator unit (8) having at least one actuator (9) and at least one commutator shaft (10) movable via the actuator, the actuator unit (8) driving a commutator wheel (32) via a drive wheel (30), and the commutator wheel (32)-drive wheel (30) combination constituting a stepper transmission (41). [Fig 3]

A high voltage motorized in-line air break disconnect switch having a rotating switch blade with two parallel elongated rectangular metal conductors having rounded top and bottom edges include a gap between the conductors. Heat conducting cooling fin units are attached to an inner side of at least one of the conductors and are positioned entirely within the gap. No part of each cooling fin unit extends above the rounded top edge or below the rounded bottom edge of a conductor to which it is attached. Corona electrical stress between the heat conducting cooling fins and a ground plane is prevented. The two conductors act as electric shields to prevent corona even with the inclusion of the cooling fin units positioned within the gap between the two conductors, permitting a reduction in the size and weight of the conductors compared to conductors without the cooling fin units.

The present invention relates to a circuit breaker, comprising: - an upper terminal (1); - a lower terminal (2); - a switching element (3); - an insulation housing (6); - a heat collector (7); and - a heatsink (8); wherein the upper terminal is electrically connected to a fixed contact of the switching element; wherein the lower terminal is electrically connected to a moveable contact of the switching element; wherein the insulation housing surrounds at least part of the upper terminal, at least part of the lower terminal, at least part of the switching element; wherein the heat collector is at least partially embedded within the insulation housing, wherein the heat collector is separated from the at least part of the upper terminal, the at least part of the lower terminal, and the at least part of the switching element by material of the insulation housing; wherein at least a part of a surface of the heat collector facing outwards from the circuit breaker is not covered by material of the insulation housing; and wherein the heatsink is connected to the part of the surface of the heat collector facing outwards from the circuit breaker.

A heat transfer assembly for a vacuum circuit breaker includes a plate having a plurality of fins and adapted to be removably attached to a conductor casing, and a shield adapted to be removably connected to the conductor casing. The shield is arranged outwardly and surrounding the plate to contain electric field within a space defined between the shield and the plate. The shield includes a plurality of openings to allow a flow of an insulation gas between the space and exterior of the shield.

A gas-insulated switch includes: a heat generator that generates heat when principal current flows; and an electrical connector (40) that is a portion of electrical connection between a rod-shaped conductor and a cylindrical conductor forming a conduction path of the principal current, wherein the electrical connector (40) includes: a plurality of ring-shaped conductors (84a, 84b, 84c, 84d) placed between the rod-shaped conductor (88) and the cylindrical conductor (89), the plurality of ring-shaped conductors (84a, 84b, 84c, 84d) includes first ring-shaped conductors (84b, 84c, 84d) and a second ring-shaped conductor (84a), the second ring-shaped conductor (84a) being disposed at a position more distant from the heat generator than the first ring-shaped conductors (84b, 84c, 84d), and an insulating layer (85) is provided between the first ring-shaped conductors (84b, 84c, 84d) and the cylindrical conductor (89) or between each of the first ring-shaped conductors (84b, 84c, 84d) and the rod-shaped conductor (88).