9results about How to "Improve temperature rise performance" patented technology

The invention provides an electric connection unit and a self-correcting large-capacity electric connection structure formed by the electric connection unit, the electric connection unit comprises a wiring end, an electric connection assembly and a connection bar, the electric connection assembly comprises an upper soft conducting strip, a lower soft conducting strip, an elastic piece, a correcting guide rod unit, a limiting plate unit, a first guide frame and a second guide frame, the correction guide rod upwards penetrates through the upper soft conducting strip, the limiting plate unit and the first guide frame in sequence, and the correction guide rod downwards penetrates through the lower soft conducting strip, the elastic piece and the second guide frame in sequence; wherein the correction guide rod forms a contact opening between the upper soft conducting strip and the lower soft conducting strip, and the width of the contact opening is guided and adjusted between the first guide frame and the second guide frame through the up-and-down movement of the correction guide rod, so that the contact opening is corrected and connected with the connecting bar to recover good contact. According to the invention, the connection position is automatically corrected through the contact opening and the connection bar, and a good contact position is returned to ensure good contact of connection.

The invention relates to a motor control technology, and discloses a motor control method and device and a storage medium, which can effectively reduce the switching loss and improve the temperature rise performance of an MOS (Metal Oxide Semiconductor) chip. The method comprises the following steps: acquiring a rotating speed control signal of a motor in real time to determine a target duty ratio corresponding to the rotating speed control signal; collecting a Hall signal of the motor in real time to determine a real-time electrical angle of the motor; according to the real-time electrical angle, real-time proportionality coefficients corresponding to the three phases of the motor are determined, and the real-time proportionality coefficient of one phase is zero; multiplying the real-time proportionality coefficient corresponding to the three phases of the motor by a target duty ratio, and determining a real-time signal duty ratio corresponding to the three phases of the current motor; and outputting a corresponding signal according to the real-time signal duty ratio, and adjusting the rotating speed of the motor. According to the invention, at any time, only the MOS chips of the two-phase bridge arms can be switched on and off, and the two MOS chips of the upper and lower bridge arms of the remaining phase can be kept on and off, so that the switching loss is effectively reduced, and the temperature rise performance of the MOS chips is improved.

The invention relates to the technical field of direct-current contactors, and particularly provides a direct-current contactor capacitance-resistant contact assembly which comprises a static contact, a moving contact and a driving mechanism. The moving contact comprises a first moving contact piece and a second moving contact piece, a step is arranged on the inner side of the lower end of the static contact, and the lower end of the static contact and the step are in contact with the first moving contact piece and the second moving contact piece respectively; the step is provided with a first anti-sticking sheet, the second movable contact sheet is provided with a second anti-sticking sheet, and the first anti-sticking sheet and the second anti-sticking sheet are in contact to conduct a loop before the static contact and the movable contact are in contact so as to bear large current at the moment of connection; by changing the contact structure of the static contact and the moving contact and designing the anti-sticking sheet, the pre-charging loop function adopted in the prior art can be combined in the direct current contactor, the capacitive impact resistance function of the direct current contactor is achieved, and the product is simple in structural design, low in manufacturing cost and good in market application prospect.

The utility model discloses a new energy box transformer m type busbar structure, especially be applicable to large capacity wind power box type substation low voltage unit, it includes A phase copper bar, B phase copper bar, C phase copper bar, A phase hangs and connects cable row, B phase hangs and connects cable row, C phase hangs and connects cable row, horizontal insulator, vertical insulator, and each phase copper bar includes the export copper bar I of upper and lower settings, export copper bar II, export copper bar III, and export copper bar I, export copper bar II, export copper bar III are connected with insulator fixed beam through horizontal insulator, wherein export copper bar I, export copper bar II, export copper bar III are arranged at interval after the lower end of bending, and constitute m shape from the side angle, and the arrangement of this kind of structure can greatly reduce the use amount of copper bar and auxiliary material, reduce the fixed point required by busbar etc. while reducing product cost, save the installation space, and reduce the cost.

The utility model discloses a novel heat dissipation module of promotion cycle number, including battery package subassembly, the outside of battery package subassembly is provided with the insertion slot, the upper end of battery package subassembly is positioned with the insertion terminal, the middle part of battery package subassembly is provided with the hollow heat dissipation groove, the inside of hollow heat dissipation groove is integrally formed with aluminium extrusion heat dissipation subassembly, the position of water -based fire -extinguishing water tank is installed to the inside of hollow heat dissipation groove near top, the inside positioning of aluminium extrusion heat dissipation subassembly has the fan radiator, the outside of hollow heat dissipation groove is installed with multiple groups of smoke alarm respectively, the bottom in water -based fire -extinguishing water tank is installed with infusion pump. The utility model discloses a novel heat dissipation module of promotion cycle number, replaces with aluminium extrusion profile in the position of temperature possibly reaching the highest point after module stack, to reduce the temperature of whole module, promotes the temperature rise effect of module, increases the cycle use frequency of module.

The invention relates to an integrated inversion control device, which is characterized in that a direct current input device, a direct current inversion module, a module control unit, a current detection module and a heat dissipation structure are integrated together, a mounting structure capable of highly utilizing space is designed, and the direct current inversion module comprises an integrated bottom plate, a support capacitor and a power module. The integrated bottom plate comprises an encapsulation groove, a support mounting flange and one or more cooling water grooves, and the supporting capacitor comprises a capacitor core, a capacitor input copper bar, a grounding copper bar, a Y capacitor, a capacitor output copper bar and a capacitor output end support. Through the design that the potting groove and the cooling water groove are oppositely arranged, the space utilization rate can be reduced, and meanwhile the heat dissipation effect is improved.

The utility model discloses a miniature instrument fuse box which comprises a main body, a conducting strip and a bolt, the conducting strip extending transversely is installed in the middle of the upper end of the main body, one transverse end of the conducting strip is fixed on the main body through the bolt, and the bolt is used for being connected with a power inlet wire. A plurality of relay modules and a plurality of fuse modules are respectively arranged on the main body on two sides of the conducting strip; hanging tables are arranged at the outer ends of the four sides of the main body, one transverse end is connected with a first support, and the first support and the main body are the same in longitudinal size; a second support is connected to the longitudinal side of the hanging table and detachably connected with the hanging table. According to the utility model, multiple functions can be realized, and the functions can cover SAGA full-platform vehicle models; the fixing structure is reliable, the positions of a plurality of supports are reserved, and the device can be used for multiple vehicle types; the device is small in size and light in weight, and can meet the space requirements of each platform of the SAGA.

A conductive component and circuit breaker include: a moving contact and a mounting bracket. The moving contact includes at least one contact blade. The mounting bracket includes a support and a first rotating shaft. The support includes a base and a shaft seat integrally formed at a first end of the base. The shaft seat has a shaft mounting hole, and the first rotating shaft is disposed within the shaft mounting hole. At least one contact blade is rotatably mounted on the shaft seat via the first rotating shaft. The mounting bracket also includes a first bent portion integrally formed with a second end of the base and sequentially bent and connected, a thermal element, and a terminal block. The first bent portion includes a tripping mounting structure for mounting a protection mechanism. The terminal block includes a power mounting structure for connecting to a load or power source. The integral design of the shaft seat, base, first bent portion, thermal element, and terminal block ensures the consistency of the cross-sectional area of ​​the entire mounting bracket, avoids temperature rise at the connection points of various components, and thus reduces the overall temperature rise of the mounting bracket.

The embodiment of the invention relates to the technical field of new energy vehicles, and discloses an integrated busbar, a battery pack and a vehicle, the integrated busbar comprises a confluence connecting bar assembly and a sampling line assembly, the sampling line assembly comprises an acquisition circuit board and a plurality of conducting strips, the acquisition circuit board comprises a main body part and a folding part, and the main body part comprises a plurality of conducting strips. The acquisition circuit board is folded along a first folding line and forms the main body part and the folding part which are oppositely arranged; the length directions of the acquisition circuit board and the first folding line are both along a first direction, and the sampling line assembly is connected with the confluence connecting bar assembly through the plurality of conducting strips. By applying the technical scheme of the invention, the space utilization rate of the battery pack can be ensured, and the temperature rise requirement of the confluence connecting bar assembly under large current and the line number requirement and the line width requirement of the sampling line assembly can be met.