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221results about How to "Good heat dissipation" patented technology

Pad structure of circuit board and manufacturing method thereof

The invention discloses a pad structure of a circuit board and a manufacturing method thereof. The circuit board is provided with a plurality of pads not covered by a solder mask on the surface of the circuit board and connected with the line of the circuit board, and the pads are higher than the surface of the circuit board. The manufacturing method is performed according to the following steps of: a, covering a protection layer at the pad position of an outer metal layer of the circuit board according to the design; b, thinning the outer metal layer not covered by the protection layer for set thickness by using a micro etching technology; c, washing off the protection layer, and performing the subsequent etching technology of the line and the pad of the circuit board according to the design to manufacture the line and the pad of the circuit board; d, performing a solder resisting technology according to the design to enable the solder mask to cover the line of the circuit board, wherein the thinned set thickness of the outer metal layer in the step b is greater than the thickness of the solder mask in the step d. As the pads are higher than the surface of the circuit board, after the subsequent client correspondingly solders each element to each pad, the weld between the element and the circuit board has good heat dissipation so that high-temperature oxidation is not easy to happen during use.
Owner:昆山华升电路板研发基地有限公司

Distribution network automatic ring main unit with high heat dissipation

The invention discloses a distribution network automatic ring main unit with high heat dissipation. The distribution network automatic ring main unit comprises a machine cabinet; a base is fixedly connected with the bottom surface of the machine cabinet; a storage battery is fixedly connected with the middle position of the top surface of the machine cabinet; a solar panel is arranged above the storage battery; the bottom surface of the solar panel is fixedly connected above the machine cabinet through a supporting block; storage boxes are fixedly connected above the left and right side surfaces of the machine cabinet respectively; a motor is arranged on the bottom surface of the inner cavity of each storage box; the motor is fixedly connected with the bottom surface of each storage box; the output shaft of the motor is connected with a rotary shaft through a coupler; one end, far from the motor, of the rotary shaft is movably connected with the inner wall of each storage box; wiring wheels are fixedly inserted and connected in the rotary shaft; and ventilation boxes are arranged on the left and right side surfaces of the machine cabinet. By virtue of the setting of the ventilation boxes, the interior of the machine cabinet can be ventilated to realize a heat dissipation effect at any time; by virtue of heat dissipation fans, heat dissipation is accelerated; and by virtue of a telescopic apparatus, the machine cabinet is effectively protected from rain water, so that the problem of poor heat dissipation of the automatic ring main unit is solved.
Owner:宁波智正伟盈信息科技有限公司

Expandable processing device

The invention relates to an expandable processing device. The expandable processing device comprises a case with an opening formed in the back. A plurality of first ventilation holes are formed in a front face plate of the case, a plurality of guiding rails arranged at intervals and correspondingly used for inserting different functional business modules are arranged in the case, the length direction of the guiding rails is perpendicular to the front face plate, a bus back plate functionally butting joint with the functional business modules is arranged between the guiding rails and the front face plate, a plurality of second ventilation holes are formed in the bus back plates, the bus back plate and the front face plate are arranged in parallel, an initiative heat dissipation assembly is arranged between the bus back plate and the front face plate and comprises a partition plate, air sucking fans for sucking air outside the case are arranged on the partition plate, and air blowing fans for blowing air into the case are arranged below the partition plate. By means of the guiding rails in the case, relative independence of installing space of the different functional business modules is achieved, electromagnetic interference between the functional business modules is reduced, heat dissipation can be achieved, and according to the front-feeding and front-discharging mode and the bottom-feeding and the top-discharging mode of the initiative heat dissipation assembly, it is guaranteed that devices inside the case can work within the wide temperature range.
Owner:ANHUI SUN CREATE ELECTRONICS

Efficient heat dissipation device for computer mainframe structure

The invention discloses an efficient heat dissipation device for a computer mainframe structure. The device comprises a box body, a partition board is fixedly connected to the portion between the bottoms of two sides of the inner wall of the box body, and an exhaust fan, a water tank, a drying oven and a motor are fixedly connected to the bottom of the inner wall of the box body from left to right in sequence; a first bevel gear is arranged on the output shaft of the motor in a sleeving mode, a first rotating rod is rotatably connected to the right side of the bottom of the inner wall of the box body through a bearing, and a second bevel gear is arranged on the surface of the first rotating rod in a sleeving mode; the surface of the second bevel gear is meshed with that of the first bevel gear. The invention relates to the technical field of computers. According to the efficient heat dissipation device for the computer mainframe structure, continuous rotation, air jetting and cooling are conducted on a computer mainboard, the aim that a computer mainframe is subjected to all-sided cooling is achieved, it is guaranteed that the computer mainboard cannot cause abnormal use of the computer due to the overheating mainboard caused by incomplete cooling, and the actual service life of the computer mainboard is guaranteed.
Owner:合肥雷呈信息技术有限公司

Light-emitting LED device with 360-degree light emitting function

The invention discloses a light-emitting LED device with a 360-degree light emitting function. The light-emitting LED device with the 360-degree light emitting function comprises a support used for supporting LED chips, pins leading the positive electrodes and the negative electrodes of the LED chips out and forming glue sealing the whole support and partial pins. The pins are arranged at the two ends of the support, and are matched with the support to form a supporting skeleton of the whole LED device; the support is of a triangular prism structure, and the LED chips are divided into three groups which are attached to three outer surfaces of the support respectively. Compared with a traditional LED chip, the light-emitting LED device with the 360-degree light emitting function is larger in surface area and better in heat dissipation performance; after the whole support and partial pins are sealed through the forming glue, a rotational symmetry structure is formed and ensures that the light-emitting LED device can evenly emit light within 360-degree space; because yellow powder, green powder and red powder are added to the forming glue according to a proper proportion, the color rendering index of the forming glue is larger than 90, the lighting effect can reach 110m/w, and the forming glue can better reflect the actual colors of an object. The LED device has good university, is attractive in appearance and can be applied to various illumination occasions like indoor and outdoor occasions.
Owner:厦门多彩光电子科技有限公司

Rim floating damping wheel for non-pneumatic tire

PendingCN107599737AExtended service lifeGood heat dissipationNon-inflatable tyresHigh resiliency wheelsEngineeringMechanical engineering
The invention provides a rim floating damping wheel for a non-pneumatic tire. The rim floating damping wheel includes a floating damping rim and a non-pneumatic tire; the floating damping rim includesan inner spoke plate and an outer spoke supporting ring, wherein a plurality of lateral buffer supports are arranged between the inner spoke plate and the outer spoke supporting ring; a radial elastic supporting function of the floating damping rim is achieved by horizontal compression springs two ends of which are supported between the adjacent lateral buffer supports, radial compression springsand tension springs; the non-pneumatic tire includes a tire body and a lining; the lining is pressed in the tire body in the circumferential direction; the lining is made of steel wires or nylon wires; a plurality of heat dissipation cavities are formed in an inner ring of the tire body in the circumferential direction; a plurality of counter bores are formed in two side surfaces of the tire bodyin the circumferential direction; and the tire sleeves the outer periphery of the floating damping rim, which are jointed together. The floating damping rim can provide a good damping effect, and theservice life of the wheel is long; a good heat dissipation performance can be achieved through the heat dissipation cavities; and when the tire is worn, the tire can be singly detached and changed.
Owner:十堰戎马汽车特种传动有限公司

Full-automatic mechanical vehicle height regulation oil-gas suspension frame

The invention relates to a full-automatic mechanical vehicle height regulation oil-gas suspension frame, which belongs to the technical field of oil-gas suspension frames, wherein an oil-gas spring upper support seat, an oil-gas spring upper cylinder tube and an oil-gas spring lower cylinder tube are fixedly connected to form a cylinder body; a low-voltage energy accumulator, a high-voltage energy accumulator and an orifice valve are all in external arrangement, and are communicated with corresponding interfaces arranged on the oil-gas spring upper support seat; a piston rod slides upwards and downwards along the inner wall of the oil-gas spring lower cylinder tube; a regulating rod is a hollow rod and can slide upwards and downwards along the inner wall of a regulating sleeve pipe, the upper end is connected with a regulating rod interface arranged on the oil-gas spring upper support seat, the lower end is provided with a lead-in valve and a regulating rod oil hole, and the side wall of the lower part is provided with an oil drainage hole and an induction passage; and the regulating sleeve pipe is a hollow rod, is fixed on the inner wall of the piston rod, and is coaxial with the regulating rod and the piston rod, the upper end and the lower end are provided with sealing rings, and the lower end of the regulating sleeve pipe is provided with a lead-out valve and a regulating sleeve pipe oil hole. The invention can realize the automatic regulation of the vehicle height without an electronic control system, and has the advantages of simple structure, high reliability and good heat radiation performance.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Variable-pole variable-phase dual-rotor axial magnetic flux annular winding synchronous motor

The invention belongs to the technical field of motors and discloses a variable-pole variable-phase dual-rotor axial magnetic flux annular winding synchronous motor comprising a stator and rotors, wherein the rotors comprise a right rotor, a left rotor and a rotor shaft; the right rotor and the left rotor are coaxially connected to the rotor shaft; the stator is disposed between the right rotor and the left rotor; independent air gaps are arranged between the right rotor and the stator and between the left rotor and the stator; the stator comprises a stator core and a stator annular winding; the stator core is a disc-shaped annular core; the stator annular winding is connected with an inverter; the left and right rotors each comprise a rotor core and an exciting winding; the stator annularwinding corresponds to the exciting winding; and the exciting winding is connected to a controllable DC power supply. The variable pole and the variable phase of the motor are achieved by changing the direction and the magnitude of the exciting current and the magnitude and the phase of the armature current. The phase number and the pole number of the motor can be changed in a non-stop manner, and the speed of the motor can be regulated within a wide range.
Owner:ZHENGZHOU UNIV +2

Protection device for battery pack of new energy automobile

The invention discloses a protection device for a battery pack of a new energy automobile. The protection device comprises a battery box, wherein a lower support strip plate, an upper support strip plate and a grid plate are arranged in the battery box; the grid plate is distributed at the bottom end of an inner cavity of the battery box in a square way; the bottom end of the grid plate is fixedlywelded with the center of the bottom end of the battery box; the lower support strip plate is fixedly welded at the bottom end of the inner cavity of the battery box in the grid plate; the side end of the lower support strip plate is fixedly welded with the grid plate. The protection device for the battery pack of the new energy automobile has the advantages that when the automobile is driven insunny days and does not encounter with water pits, a cover plate and a plug valve are opened to exchange heat with outside cold air flow to carry away heat, and the air cooling type is matched with the water cooling type of the automobile self, so that the good heat radiating property is realized; when the automobile is driven in rainy days or encounters with water pits, the cover plate is covered, and the plug valve is closed, so that the outside water is prevented from entering the battery box, and the short-circuiting of the battery of the battery box due to water is avoided; the whole heatradiating property is better, and the waterproof effect is good.
Owner:安徽普司登汽车服务有限公司

External oil cooling structure of rotary-vane vacuum pump

The invention discloses an external oil cooling structure of a rotary-vane vacuum pump; and the energy-saving and environment friendly external oil cooling structure of the rotary-vane vacuum pump, which is used for cooling vacuum pump oil by using an external condenser, used for air-cooling the condenser by using a motor fan, has a good vacuum pump oil cooling effect, is used for prolonging the service life of the vacuum pump oil and is beneficial for stably developing the performance of the vacuum pump, is provided; technical problems that oxidative deterioration of the vacuum pump oil is accelerated because the rotary-vane vacuum pump oil at high temperature cannot be effectively cooled, the performance of the vacuum pump is directly affected when serious oxidative deterioration is caused and so on are solved; the condenser is arranged on the other side of the vacuum pump of the motor fan; an inlet end of the condenser is connected with one end of a condenser oil inlet; an outlet end of the condenser is connected with one end of a condenser oil outlet pipe; the other end of the condenser oil inlet pipe extends and is communicated with a corresponding lubricating passage above a pump stator; and the other end of the condenser oil outlet pipe extends and is communicated with an oil tank.
Owner:ZHEJIANG VALUE MECHANICAL & ELECTRICAL PROD CO LTD

Square lithium ion power battery

The invention relates to a square lithium ion power battery, which is characterized in that a lug of a mandrel is placed at the outermost layer of the mandrel, the lug extends along the arc side surface of the mandrel and the extending direction of the lug is perpendicular to the arc side surface. An anode lug is threaded through a spacer and welded on a cover plate; a cathode lug is threaded through a spacer and welded on a connecting sheet. The anode/cathode lug and the connecting sheet are folded at the rear of a spacer groove, the spacer is fastened on an insulated rubber pad of the coverplate. The invention also provides a method for welding the cathode lug. The present invention has the advantages that a thin shell with wide and short shape is employed, the heat dissipation of the battery is good and the metal shell is easy to process for forming. The lug is arranged at the outermost layer of the mandrel, which avoids the problem of short circuit generated when the battery falls or the impacted lug and the connecting sheet enter in the mandrel. The method of welding cathode lug is capable of effectively inhibiting the disadvantage of easy rupture force of copper foil cathode lug when being smashed and being pulled by external force; an engagement structure of the spacer and the insulated rubber pad is employed for effectively preventing the poor positioning of the spacer.
Owner:JIAN UTILITY TECH CO LTD
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