61results about How to "Guaranteed degree of protection" patented technology

The invention discloses a solar photovoltaic junction box, which comprises a box body, a bypass diode and a control circuit, wherein the box body is internally provided with a main cavity chamber and an auxiliary cavity chamber sealed and isolated by multiple separators; at least one separator is a heat-conducting plate; the bypass diode is arranged on the heat-conducting plate located at the side of the main cavity chamber and conducts heat to the auxiliary cavity chamber via the heat-conducting plate; the control circuit is located in the main cavity chamber; and the auxiliary cavity chamber is provided with an air inlet and an air outlet passing through the box body and connected with the outer part of the box body, and a cooling air duct is formed. The solar photovoltaic junction box of the invention has the advantages of simple structure, good cooling effects, high protection level and the like.

The invention discloses a balance breather valve which comprises a shell, a first waterproof breathing film and a dynamic sealing structure, wherein a protruding part is arranged on the top surface of the shell; the first waterproof breathing film is fixed at the bottom of the protruding part; the dynamic sealing structure is used for hermitically isolating the first waterproof breathing film from an inner cavity of the shell or communicating the first waterproof breathing film to the inner cavity of the shell; the dynamic sealing structure comprises a driving mechanism, a first sealing body which is hermitically arranged on the shell and surrounds the side wall of the first waterproof breathing film and a second sealing body opposite to the first sealing body along the vertical direction; the first waterproof breathing film is located in a cavity encircled by the first sealing body and the second sealing body; and the driving mechanism drives the second sealing body to move towards or away from the direction of the first sealing body, so that the second sealing body can be hermitically matched with the first sealing body or separated from the first sealing body. In case of an abnormal working condition, the first sealing body and the second sealing body realize sealing to prevent external water vapors from entering a box body, so that components in the box body can operate under constant humidity, and the sealing property of the balance breather valve is improved.

The invention relates to a dense busway socket device, which includes a socket mechanism and a pile head. The socket mechanism includes a socket seat and a socket cover. The socket seat is a cuboid structure, and a ring of fixed support seats is provided on the outer periphery of the bottom of the socket seat. The first socket, the second socket, the third socket, the fourth socket and the fifth socket are arranged alternately on the socket seat. The pile head includes a plug-in end and a fixed end, and the pile head is inserted into the first socket. , The second socket, the third socket, the fourth socket and the fifth socket have achieved high density, and have the characteristics of low impedance, fast heat dissipation, and simple process.

The invention provides an input and output terminal for an automobile-mounted power supply of a new-energy automobile. The input and output terminal comprises a rectangular body (1). A wire penetrating hole (2) is longitudinally formed in the body (1). A protruding installation body (3) is arranged in the middle of the body (1). The upper portion of the installation body (3) is hemispherical, and the lower portion of the installation body (3) is cuboid. A clamping groove (4) is formed in the surface of the middle of the installation body (3) and extends to the bottom face of the cuboid. The two ends of the body (1) are respectively provided with an annular groove (5). An attaching block (6) is further arranged at the joint of the clamping groove (4) and the bottom face of the cuboid. By means of the design, compression elasticity of rubber is tightly wrapped on an input and output wire penetrating through the middle, on one hand, the wire is prevented from damage, and on the other hand, it is ensured that the portion, making contact with the outside world, of the product is prevented from dust or water. Meanwhile, proper attaching blocks are added to the joints between the input and output terminal and the two sides of a shell seal ring, and therefore a good waterproofing effect is achieved for dead corners.

The invention provides an electric door. The electric door comprises a door body, an electronic control box and a swing arm mechanism. The door body comprises a door leaf and a door frame. The door leaf is movably arranged on the door frame. The electronic control box comprises a control mainboard, a relay, a motor and power sources. The control mainboard and the motor are connected with the relay. The power sources are connected with the control mainboard, the relay and the motor. The control mainboard controls the relay to drive the power sources to supply power to the motor or not, and rotation or rotation stopping of the motor can be achieved. One end of the swing arm mechanism is connected with the door leaf, and the other end of the swing arm mechanism is connected with the output end of the motor. The electric door is simple in structure and good in reliability and stability; and an induction part is matched with the control mainboard, whether someone exists in an induction areaor not can be detected, and therefore the door leaf is automatically opened, the electric door has the function of recording the opening and closing frequency of the door leaf, and data reference isprovided for maintainers.

The invention provides a dustproof, waterproof and energy-saving valve island, which includes a manifold, a valve sealing gasket, a solenoid valve, a circuit board assembly, a coil sealing gasket, a DIN guide rail buckle, a DIN guide rail, and a light guide column. The solenoid valve is provided with two More than one, and fixed on the manifold in a row horizontally, the circuit board assembly runs through the front end of the manifold, the coil sealing gasket is inserted and buckled on the manifold, and is located between the manifold and the solenoid valve, and the light guide column is buckled on the manifold. On the board and on the outer side corresponding to the solenoid valve, there are three air inlets on the lower end of the manifold along the penetration direction of the circuit board assembly and on one side of the circuit board assembly. On the side of the manifold near the coil sealing gasket, And a fixed panel is fixed at the end of the circuit board assembly, and a rear panel is fixed on the other side of the manifold and at the other end of the circuit board assembly. The invention has the advantages of simple structure, centralized wiring, stable and reliable connection, convenient installation, good waterproof, dustproof and energy-saving effects, and effectively prolongs the service life.

What is described is a method of producing flexible electrical cords (K) which are cut to length, the method being applied by using a flexible strip (14) having a plurality of electrically conductive lines (12) extending along the strip (14). Along the flexible strip (14) there are arranged electrical connectors (10) including a plurality of tubular conductors (22) each of which extends in a bridge-like manner between two subsequent portions of one of the conductive lines (12) of said plurality. A portion of given length is separated from the flexible strip (14) by cutting one of the aforesaid connectors (10) in a transverse plane (T) in such a way that the tubular conductors (22) located therein are cut. The portion separated in this way forms a flexible electrical cord (K) having, at one end at least, a plurality of electrical connection holes or sockets (100) exposed as a result of the cutting of the tubular conductors (22).

The invention discloses a privacy calculation method and application of a big data application open platform, and the method comprises the following steps: obtaining software information of the big data application open platform needing privacy calculation, building privacy level parameters, calculating the privacy level parameters, and sorting the privacy level parameters according to privacy levels; and according to the arrangement sequence, performing simulation operation on each item data in the software in sequence. The invention comprises performing simulation activity on big data needing to be subjected to privacy calculation by applying open platform software so as to calculate the occurrence probability of privacy data in the simulation activity; determining a privacy degree requirement index of software putaway according to the property and effect of the software; comparing the occurrence probability of the privacy data in the software simulation activity with the privacy degree requirement index of software shelving, so that whether the software can be shelved on the big data application open platform or not is calculated, the privacy protection degree of the software on the big data application open platform is guaranteed, and actual application is facilitated.

The invention relates to a lithium battery pack thermal management system and method with dry and wet separation. The system comprises a battery pack, a battery pack housing and a liquid cooling platetube heat exchanger, the surface of the battery or the battery module is attached to a micro heat pipe array, the extending portion of the micro heat pipe array is attached to the battery pack housing; the liquid cooling plate tube heat exchanger is attached to the outer surface of the battery pack housing, the liquid cooling plate tube heat exchanger is connected with an electric vehicle refrigerating system. The lithium battery pack thermal management system and method with dry and wet separation combine the micro heat pipe array with efficient heat transfer with a liquid cooling mode to arrange one or more than one liquid cooling plate tube heat exchangers arranged at the outer portion of each battery pack to effectively conduct the temperature in the battery through the further position and arrangement relation of the micro heat pipe array and the battery unit so as to avoid the too high temperature, ensure the uniform temperature of the battery and improve the heat dissipation efficiency.

The invention provides an air-cooling lithium battery pack thermal management system and method with a high protection level. The system comprises a battery pack, a battery pack casing and an externalair-cooling module. A micro heat pipe array is attached to the surface of a battery or a battery module, and a protruding portion of the micro heat pipe array is attached to the battery pack shell. The external air-cooling module is in close contact with the outer surface of the battery pack outer casing, the external air-cooling module has an air-cooling fin inside and a fan at a side. Accordingto the invention, the micro heat pipe array with high heat transfer and an air cooling mode are effectively combined, the heat inside the battery can be effectively transmitted to the outside, the temperature is prevented from being too high, the uniform temperature of the battery is ensured, the heat dissipation efficiency is high. The control system can automatically start the fan, the externalair-cooling fin automatically dissipate heat to achieve un-cooling energy-saving heat dissipation, the automatic heat dissipation is carried out when the battery is heated during the parking of an electric vehicle, and major safety risks such as thermal runaway are greatly suppressed.

The invention belongs to the technical field of cable joints, and particularly relates to a disc cabinet cable sealing joint, a main body structure comprises an inner sealing ring and an outer sealing ring connected with the inner sealing ring through a threaded pipe, and the disc cabinet cable sealing joint comprises the inner sealing ring, the threaded pipe, the outer sealing ring, an interface and a through hole, an interface is arranged in the center of the inner sealing ring, a through hole is formed in the center of the outer sealing ring, a novel and reasonable double-film sealing structure is adopted, after a cable penetrates in from the interface and penetrates out from the through hole, the interface and the through hole are tightly attached to the cable based on the specific self-tightening characteristic of TPU (thermoplastic polyurethane elastomer) materials, and the cable sealing device has double protection levels and is convenient to use. The sealing performance and the waterproof and dustproof performance are guaranteed, the threaded pipe of a multi-ring structure is suitable for plate cabinet box bodies of various thicknesses, and the protection level of the connecting position of the threaded pipe and the box body can be guaranteed; the structure is simple, the installation is convenient, the threading is convenient, the wiring cost is reduced, and the waterproof and dustproof effects of the plate cabinet are improved.