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606results about "Resistor housing/enclosing/embedding" patented technology

Embedded high-strength resistor

The invention relates to the technical field of resistors, in particular to an embedded high-strength resistor which comprises a resistor shell, a resistance wire, a resistor lead, a ceramic core and a sliding assembly, the ceramic core is installed in the resistor shell, the resistor shell is provided with the resistor lead, the sliding assembly is arranged in the resistor shell, and the resistor lead is arranged in the sliding assembly. The sliding assembly is located on one side of the ceramic core, the ceramic core is sleeved with the resistance wire, one end of the resistance wire is connected with the inner wall of the resistor shell, and the other end of the resistance wire is connected with the sliding assembly. According to the invention, the sliding assembly is arranged to control the fitting and disconnection of the copper rod and the resistor lead, so that the resistor is prevented from being fused due to a protection circuit due to uncertain factors such as lightning stroke of electrical equipment or current increase at the moment of unstable voltage, and the troubleshooting and replacement times of a fault resistor by workers are effectively reduced; the maintenance cost of the electrical equipment is reduced, and the service life of the electrical equipment is prolonged.
Owner:史世美

Modular resistor grid to achieve “black box” resistance

Systems, apparatuses, and methods relate to modular resistor grid assemblies having a “black box” resistance. The modular resistor grid assemblies include a first plurality of first resistor plates having a first thickness disposed within a first housing. The first housing has a first input and output terminal. The first resistor plates provide a target electrical resistance between the first input output terminal. A second plurality of second resistor plates having a second thickness smaller than the first thickness is disposed within a second housing. The second housing has a second input and output terminal. The second resistor plates provide the target electrical resistance between the second input and output terminal. The first and second housing interchangeably couple to a resistive braking system. The first plurality includes a first number of first resistor plates, and the second plurality includes a second number of second resistor plates less than the first number.
Owner:CATERPILLAR INC

Non-contact multi-direction input rocker potentiometer

The invention provides a non-contact type multi-direction input rocker potentiometer. The non-contact type multi-direction input rocker potentiometer comprises a base, a cover shell, a metal piece, a supporting frame, a magnetic piece, a reset spring, a rocker structure, a non-contact type Hall sensor and an FPC board. The cover shell covers the base to form an assembly space, and the reset spring is arranged in the assembly space and is coaxial with the rocker structure; an avoiding hole for the rocker structure to move is formed in the top of the cover shell; the FPC board is installed at the bottom of the inner cavity of the base, and the non-contact Hall sensor is correspondingly installed on the FPC board; the support frame correspondingly penetrates through the FPC board through a positioning pin and is connected with the base; the upper surface of the supporting frame is coaxially provided with a metal piece containing groove for containing metal pieces. A sensor accommodating groove for accommodating the non-contact Hall sensor is coaxially formed in the bottom of the support frame; and the magnetic piece is correspondingly arranged at the lower part of the inner cavity of the rocker structure and is coaxial with the non-contact Hall sensor. The rocker can accurately find the gauge midpoint, the resetting accuracy is high, and the pressing hand feeling is good.
Owner:FAVOR ELECTRONICS (DONGGUAN) CO LTD

Chip resistor and preparation method thereof

According to the chip resistor and the preparation method thereof, the laser wire cutting grooves adjacent to the left electrode and the right electrode are formed in the resistance layer through laser cutting, the resistance value of the resistor can be accurately adjusted and controlled, the manufacturing precision and consistency of the resistor are improved, the laser cutting mode is optimized through diagonal cutting, and the production efficiency is improved. The laser wire cutting groove is limited at the diagonal position and is adjacent to the front electrode, and the heat effect of the resistor is correspondingly controlled, so that the heat dissipation performance is improved; according to the chip resistor, through a multi-layer protection structure formed by the first protection layer made of the glass material and the second protection layer made of the epoxy resin material, the invasion of moisture, chemical corrosion and mechanical damage is effectively prevented, the service life of the resistor in a severe environment is remarkably prolonged, and particularly, through the third protection layer made of the resin silver material, the service life of the resistor is prolonged. The anti-corrosion performance of the electrode part is enhanced, so that the resistor can keep stable electrical performance during long-time work.
Owner:AEON TECH CORP

Insulating shield capable of realizing non-power-cut installation of electric lightning arrester and installation method

The invention discloses an electric lightning arrester insulation shield capable of being installed without power outage and an installation method, and relates to the technical field of electric protection, the electric lightning arrester insulation shield comprises an insulation cover, an elastic automatic locking mechanism, an installation sheet and a reinforcing plate, the insulation cover is integrally formed, a turnover plate is connected to the lower ends of a left side plate and a right side plate, and the elastic automatic locking mechanism comprises a left locking module and a right locking module; the modules are connected through a pressure piece and a clamping piece through a connecting piece, a lock body part penetrates through a locking hole to achieve locking, during installation, the protective cover is driven by an insulating rod to be horizontally pushed into the top of the lightning arrester, a locking mechanism is extruded and triggered to achieve automatic locking, the protective cover is fixed to an exposed metal piece, and main insulation is not affected. Locking is reliable, the service life is long, operation is convenient, the device can be expanded to multiple fields, and safe operation of equipment is guaranteed.
Owner:JIAXING XINNIU ELECTRIC POWER TECH CO LTD

Air cooled resistor arrangement

An air cooled resistor arrangement, comprising a resistor housing comprising an air inlet, an air outlet, a first side wall extending from the air inlet to the air outlet, and a second side wall extending from the air inlet to the air outlet on an opposite side to the first side wall, a plurality of elongated resistor elements arranged in the resistor housing, each one of the elongated resistor elements extending from the first side wall to the second side wall, wherein the plurality of elongated resistor elements is arranged in columns along a direction between the air inlet and the air outlet, wherein each one of the plurality of elongated resistor elements is arranged equidistantly to all its neighboring elongated resistor elements.
Owner:VOLVO TRUCK CORP

Arrester

The present application provides an arrester. The arrester comprises: a housing, the housing comprising a first mounting portion and a second mounting portion, the first mounting portion being provided with a first mounting cavity, the second mounting portion being provided with a second mounting cavity, and the first mounting cavity being communicated with the second mounting cavity; an arrester core, mounted in the second mounting cavity; a sealing assembly, the sealing assembly being mounted in the first mounting cavity and comprising a first elastic member and a sealing cover, one end of the first elastic member abutting against the top of the first mounting portion, the other end of the first elastic member abutting against the sealing cover, and a pressure relief hole communicated with the second mounting cavity being provided on the sealing cover; and an anti-explosion structure, the strength of the anti-explosion structure being smaller than that of the housing, the anti-explosion structure being located between the sealing cover and the arrester core, and the anti-explosion structure being configured to be capable of plugging the pressure relief hole. The arrester of the technical solution of the present application solves the problem in the prior art of unstable explosion values at weak points of arresters having pressure relief devices.
Owner:JIANGDONG FITTINGS EQUIP +1

Lightning impulse protection device for transformer

The utility model provides a lightning impulse protection device for a transformer, and relates to the technical field of lightning arresters, the lightning impulse protection device for the transformer comprises a mounting plate, two ends of the mounting plate are respectively provided with a protection mechanism, the protection mechanism comprises two rectangular blocks, the inner walls of the two rectangular blocks are rotatably connected with a rotating shaft, and the rotating shaft is connected with the mounting plate. A rotating shaft is arranged on the outer side of the screw rod, a coil spring is arranged on one side of the rotating shaft, an L-shaped rod is fixedly connected to the outer surface of the rotating shaft, and a piston block is rotationally connected to one end of the screw rod. The piston block slides on the inner wall of the rectangular groove by rotating the screw rod, so that the airbag sheet deforms and expands outwards, the outer side of the joint of the lightning arrester body and the high-voltage line is wrapped and protected, the influence of rain and sun on the outer side of the joint of the high-voltage line and the lightning arrester body is reduced as much as possible, the service life of the lightning arrester body is prolonged, and the use effect of the lightning arrester body is improved.
Owner:ZHENJIANG DAQO POWER TRANSFORMER CO LTD

Dual-resistor integrated module

The utility model discloses a dual-resistor integrated module, and relates to the technical field of electronic devices, the dual-resistor integrated module comprises a shell, a first resistor, a second resistor, a clamping structure and an encapsulation layer, and one end of the shell is provided with an opening; the first resistor and the second resistor are arranged in the shell side by side, a first metal contact pin and a second metal contact pin are arranged at the electrode positions, close to the first end of the opening, of the first resistor and the second resistor respectively, and the first metal contact pin and the second metal contact pin extend out of the opening. The electrodes of the second ends, far away from the opening, of the first resistor and the second resistor are connected through a conductive assembly, and the first ends of the first resistor and the second resistor are provided with a first clamping groove and a second clamping groove respectively; two ends of the clamping structure are respectively clamped in the first clamping groove and the second clamping groove; and the encapsulation layer is formed in the shell and is used for fixing and protecting the first resistor and the second resistor in the shell. According to the invention, the resistor can be accurately positioned and stably fixed, and the overall reliability is improved.
Owner:GUANGDONG EBG ELECTRONICS CO LTD

Resistor heat dissipation structure

The utility model discloses a resistor heat dissipation structure which comprises a resistor main body, the outer side of the resistor main body is fixedly connected with a heat dissipation sleeve shell, the middle part of the heat dissipation sleeve shell is provided with an arc-shaped groove, the arc-shaped groove is provided with an active heat dissipation piece, the heat dissipation sleeve shell is provided with two groups of heat dissipation fins, and the active heat dissipation piece is provided with an active heat dissipation piece. Through holes are formed in the two sides of the interior of the arc-shaped groove and communicate with gaps between the cooling fins on the two sides. Heat of the resistor body is absorbed through the external heat dissipation sleeve shell and exported outwards in an accelerated mode, passive heat dissipation is achieved, the interior of the arc-shaped groove is absorbed into negative pressure by starting the active heat dissipation piece, air in gaps of the heat dissipation fins on the two sides is absorbed inwards through the through holes at the moment, the flow speed of the air between the heat dissipation fins is increased, and the heat dissipation efficiency is improved. Therefore, the device has the advantages that the heat dissipation efficiency is high, the flow guide effect is good, and the heat dissipation effect is improved.
Owner:DALIAN SONGYIN TECH CO LTD

Buried resistor, manufacturing method thereof and printed circuit board

The invention provides a buried resistor, a manufacturing method thereof and a printed circuit board. The manufacturing method comprises the following steps: providing an inner-layer substrate; cutting the inner-layer substrate, laminating a thin dry film on the surface of one side of the copper layer of the inner-layer substrate, performing first patterning treatment, etching to remove the copper layer and the resistive layer which are not protected by the thin dry film after the first patterning treatment, and stripping the thin dry film to obtain a first semi-finished product; pressing a thick dry film on the surface of one side of the copper layer of the first semi-finished product, then carrying out second patterning treatment, then etching to remove the copper layer which is not protected by the thick dry film after the second patterning treatment, and stripping the thick dry film to obtain a second semi-finished product; and depositing a layer of solder resist ink at the etched part of the copper layer of the second semi-finished product to enable the solder resist ink to cover the exposed resistive layer, then performing resistance inspection, and then laminating a high-frequency material layer on the surface of the solder resist ink to obtain the buried resistor. According to the invention, the protection of the buried resistor and the effective control of the resistance value of the buried resistor are realized.
Owner:无锡市同步电子科技股份有限公司

Aluminum shell heat dissipation and heating tube resistor integrated structure

The invention discloses an aluminum shell heat dissipation and heating tube resistor integrated structure which comprises a heat dissipation aluminum shell, a plurality of installation cavities are formed in the heat dissipation aluminum shell, heating assemblies are installed in the installation cavities, lead terminals are installed on the heating assemblies, a closed cooling cavity is formed in the heat dissipation aluminum shell, and a resistor is arranged in the closed cooling cavity. According to the aluminum shell heat dissipation and heating tube resistor integrated structure, through the integrated fusion design of the aluminum shell and the heating tube resistor and the combination of the phase change material cooling technology, the heat dissipation bottleneck problem of a high-power resistor is solved, and the aluminum shell heat dissipation and heating tube resistor integrated structure is compact in structure and efficient in heat dissipation; the resistor is particularly suitable for high-end industrial application such as robots and new energy equipment, and is expected to replace a traditional aluminum shell resistor and an independent cooling system, the reliability of equipment is enhanced, and meanwhile, the equipment cost and maintenance requirements are reduced.
Owner:JIANGSU YINGFAN ELECTRONICS CO LTD

Ceramic resistor containing continuous conductive layer and preparation method and application thereof

The invention belongs to the technical field of production of special materials for electrical equipment, and particularly relates to a ceramic resistor containing a continuous conducting layer and a preparation method and application thereof. According to the preparation method provided by the invention, the conductive material is deposited in the fibrofelt supporting layer by adopting vacuum impregnation-air pressure sintering, then the ceramic material is deposited in the supporting layer containing the conductive layer by adopting vacuum impregnation-air pressure sintering, and all the structural layers are continuously communicated to form the novel ceramic resistor. According to the invention, the fibrofelt is used as the supporting layer, and the carbon nanotubes can be uniformly and continuously dispersed through in-situ generation of the carbon nanotubes in the supporting layer, so that a conductive channel is formed, and the resistivity is effectively reduced; meanwhile, the fiber felt is impregnated with ceramic mixed slurry and is subjected to air pressure sintering, so that the apparent porosity can be effectively reduced, and the volume density is increased. Therefore, the ceramic resistor prepared by the invention has good electrical properties, excellent mechanical properties and good use stability, and is suitable for industrial application as a closing resistor material.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +1

Using method of suspension type independent tank closing resistor unit structure

The invention relates to a use method of a suspension type independent tank closing resistor unit structure, the closing resistor unit structure comprises a plurality of resistor sub-strings which are located in a shell and are connected in series, and each resistor sub-string comprises an insulating rod which is arranged on a front end cover and a rear end cover in a delta shape; the insulating rods are provided with a plurality of I-wheel-shaped insulating sheets which are arranged along the axial direction of the insulating rods, the insulating sheets are internally provided with annular resistor discs, concave rings of the insulating sheets are provided with annular deformation grooves located at corners, and the corresponding resistor discs on different insulating rods are connected through copper sheets. Edge fragmentation of the resistor disc is avoided, and deflection deformation of the cross-core insulating rod is reduced; through the arrangement of the outer lining, impact damage of airflow to the appearance surface structure of the resistor disc in the inflation and deflation process is prevented, and even if slight abrasion exists, dust particles fall into the trap through the arrangement of the pull-out type particle trap on the shell and the slag falling hole of the outer lining, and insulation breakdown is avoided.
Owner:SHANDONG TAIKAI HIGH VOLTAGE SWITCH

Preparation method of heating film and heating film

The invention provides a preparation method of a heating film and the heating film. The method comprises the following steps: providing a copper base material; the copper base material is pretreated, and the pretreated copper base material is obtained; carrying out deposition treatment on the pretreated copper base material to obtain a copper base material with a thin film; transferring the copper base material with the film to obtain a first film; carrying out printing treatment on the first thin film to obtain a second thin film; cutting the second film according to a preset cutting condition to obtain a third film; and performing electrical connection processing on the third film to obtain a target heating film. The heating efficiency and the stability of the heating film can be improved, and the production cost can be reduced while the energy consumption is reduced.
Owner:SHENZHEN SHENGHONGYUN TECH CO LTD

A high power plug-in alloy resistor

The utility model relates to the technical field of circuit elements, and specifically to a high-power plug-in alloy resistor, comprising a resistor housing, a sealing shell component, a connecting component and a heat dissipation component, wherein the heat dissipation component comprises a heat sink, a resistor core, an insulating sheet and quartz sand, wherein the heat sink is fixedly mounted in the resistor housing, the resistor core is fixedly mounted on the heat sink, the insulating sheet is fixedly mounted on the resistor core, and the quartz sand is fixedly mounted in the resistor housing, the resistor housing is welded and fixed on a circuit board through pins, and is electrically conductive through a conductive block, the resistor core emits heat during the flow of current, the emitted heat is dissipated through the heat sink, the high temperature generated by the resistor core is effectively taken away, and the performance is improved, while under the action of the insulating sheet and the quartz sand, the resistor core is protected, and the heat generated by the resistor core can be quickly conducted to the heat sink for heat dissipation, thereby effectively dissipating the generated heat and improving the service life of the resistor.
Owner:SUZHOU JUYONGCHANG ELECTRONIC TECH CO LTD

A sandwich resistor

The present invention relates to the field of resistor technology, and in particular to a sandwich resistor, comprising a supporting module and a resistor unit, wherein the resistor unit comprises a plurality of resistor sheets and a plurality of insulating separator sheets which are sequentially spaced and stacked, wherein a transition hole is provided at a position close to an end of the insulating separator sheet, and a bending section is integrally formed at the end of the resistor sheet, and the bending section passes through the transition hole and is connected to another resistor sheet, thereby electrically connecting the plurality of resistor sheets; both side surfaces of each resistor sheet are tightly covered by different insulating separator sheets, so that dust and other impurities basically do not fall onto the surface of the resistor sheet, and thus the dust and pollution prevention level is high; there is no deformation space for the resistor sheet in the arrangement direction, so the resistor sheet will not deform at all after power is turned on, and different resistor sheets will not move close to each other, so the structure is stable and the insulation performance is good.
Owner:GUANGDONG FULLDE ELECTRONICS +2

Air duct structure of forced air cooling brake resistor

The utility model relates to an air duct structure of a forced air cooling brake resistor. The air duct structure is arranged on a resistor box body, the resistor box body comprises a box body air duct and a resistor element arranged in the box body air duct, and the air duct structure comprises a conical air guide device, a fan, an air inlet mesh enclosure and an air outlet shell arranged at the outlet end of the box body air duct which are sequentially connected with the inlet end of the box body air duct; the air inlet mesh enclosure is a cuboid mesh enclosure, a fan receding hole is formed in one side of the air inlet mesh enclosure, and fan blades of the fan are rotationally arranged at the fan receding hole. Compared with the prior art, the air duct structure enables air flow to be evenly distributed in the air duct of the box body, prevents the air flow from generating a blind area in the air duct and causing local over-temperature of a brake resistor, can effectively reduce the adverse effect of walking wind generated when a train travels on heat dissipation of the resistor, and improves heat dissipation efficiency.
Owner:SHANGHAI GINO TELEMA RESISTORS

High-reliability small angular displacement potentiometer with voltage conversion function

The utility model discloses a high-reliability small angular displacement potentiometer with a voltage conversion function, which comprises a shell, a cover plate, a voltage conversion circuit board, a rotating shaft, an external end bearing, a resistor body, an insulating sleeve, a collector ring, an electric brush, a resistor body lead and an output lead, a rotating shaft protruding ring is formed on the edge of the outer end of the large-diameter connecting part, a split washer is arranged at the position, close to the large-diameter connecting part, of the rotating shaft, the large-diameter connecting part is sleeved with the external end bearing, the inner ring of the external end bearing is located between the split washer and the rotating shaft protruding ring, and a bearing flange plate is arranged on the outer ring of the external end bearing. The bearing flange plate is located in a limiting groove formed between the shell and the cover plate. According to the utility model, the structure for limiting the external end bearing and the rotating shaft is improved, so that the function of effectively preventing the rotating shaft from axially moving can be realized only by adopting one external end bearing, the axial size and volume of the potentiometer are reduced, and the potentiometer is convenient to apply.
Owner:CHENGDU HONGMING ELECTRONICS CO LTD

High-power box-type liquid-cooled brake resistor

The utility model relates to a high-power box-type liquid-cooled brake resistor, the resistor takes away heat through cooling liquid, the resistor comprises a shell, a resistor unit and a mounting plate, the mounting plate is mounted in the shell, the resistor unit is mounted on the mounting plate, the resistor further comprises a water inlet, a water outlet, a water passing plate and a water channel, the water inlet and the water outlet are installed on the shell, the water passing plate and the water channel are installed inside the shell, the water channel is connected with the water passing plate, one end of the resistor unit is placed in the water channel, and the cooling liquid sequentially passes through the water inlet, the water passing plate, the water channel and the water outlet. According to the utility model, the water channel is arranged, the integrated flow guide (anti-backflow design) design is adopted in the shell, the cooling liquid passes through the tubular resistor from bottom to top, and the temperature controller and the pressure monitoring instrument are arranged, so that the heat dissipation function is exerted to the utmost extent; by arranging the reinforcing ribs, the pressure bearing capacity of the shell can be enhanced, and the deformation amount of the shell in the working pressure bearing process is reduced.
Owner:SHANGHAI KRAH ELECTRONICS CO LTD

Systems and methods for electrical element for inverter for electric vehicle

A system includes an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a power module, the power module including a thermistor assembly, the thermistor assembly including: a conductive layer including a trench; a thermistor connected to the conductive layer and disposed across the trench; and a first height control feature between the conductive layer and the thermistor.
Owner:BORGWARNER US TECHNOLOGIES LLC

Sensor element and method for manufacturing sensor element

A sensor element (1) for measuring temperature is described, comprising a carrier (2), wherein the carrier (2) is made of an electrically insulating material and has a top surface (2a) and a bottom surface (2b), an NTC thermistor (3), wherein the NTC thermistor (3) is arranged on the top surface (2a) of the carrier (2), at least two first electrodes (4) for electrically contacting the sensor element (1), wherein the first electrodes (4) are arranged on the top surface (2a) of the carrier (2), and at least one second electrode (5), which is arranged on the bottom surface (2b) of the carrier (2), wherein the sensor element (1) is configured to be directly integrated in an electrically insulating manner. Furthermore, a method for manufacturing a sensor element (1) is described.
Owner:TDK ELECTRONICS AG

Resistor

To provide a resistor which can ensure insulation quality of a resistor element while reducing the number of components.SOLUTION: A resistor 100 comprises: a case 1; and a resistor element 2 having a resistor body 21 which is housed in the case 1, a pair of terminal parts 22 which are provided on the resistor body in such a manner that part of them protrudes from the case 1, and a resistor wire 23 which is wound around the resistor body 21. The resistor body 21 has: a winding core 211 around which the resistor wire 23 is wound; and a pair of terminal installation parts 212 each of which is provided on each of both ends of the winding core 211 so that each of the pair of terminal parts 22 may be installed. Each of the terminal installation parts 212 has a pair of first facing parts 212a each of which faces each of a pair of first peripheral walls 121 of the case 1. The winding core 211 has a pair of lateral flat surfaces 211a each of which faces each of the pair of first peripheral walls 121 and is recessed from each of the pair of first facing parts 212a.SELECTED DRAWING: Figure 7
Owner:KOA CORP

Modular load

The utility model discloses a modularized load, which comprises a box body, two longitudinal ends of the box body are provided with openings, one opening of the box body is fixedly connected with a fan, a plurality of resistor units are sequentially arranged in the box body along the longitudinal direction, and each resistor unit comprises a frame body and a resistance tape wound in the frame body in a snake shape. Air blown out by the fan blows through the frame body, the frame body is detachably connected with the box body, and two wiring terminals are fixedly arranged on the frame body. According to the requirement of a load, the resistor units with corresponding resistance values are inserted into the box body from the jacks at the top of the box body, and the resistor units can be connected in series or in parallel so as to obtain the required resistance value. Therefore, when the resistance value required by the load is changed, the whole modularized load does not need to be replaced, and only the corresponding resistor unit needs to be replaced or the wiring mode of the resistor unit needs to be changed, so that the manpower can be saved, the working efficiency is improved, the equipment investment can be saved, and the aim of reducing the cost is fulfilled.
Owner:HEBEI KAIXIANG ELECTRICAL TECH +1

Production method of partitioned resistance chip high-power resistor and high-power resistor

The present application relates to the technical field of high-power resistor, conductive connection, electrothermal technology, and provides a production method of a high-power resistor with separated resistor sheets and the high-power resistor. The method comprises: processing a metal material through a laser device to make a resistor shell with convection heat dissipation holes; processing a plurality of cuboid-shaped resistor sheets, each resistor sheet being provided with an insulating support at an end portion and being capable of being connected in series and parallel according to resistance requirements as an independent resistance unit; and installing the resistor sheets into the shell at intervals to form a convection space of a preset height between adjacent resistor sheets, which is communicated with an external environment through the convection heat dissipation holes. The method of the present application obtains a high-power resistor composed of independent resistance units through a separated design and convection heat dissipation, effectively reduces the thermal load and energy consumption of the high-power resistor, and prolongs the service life.
Owner:SHENZHEN ZENITHSUN ELECTRONICS TECH CO LTD

Multilayer component and method for producing a multilayer component

Multilayer component (100) comprising an inert ceramic substrate (1) and at least one functional ceramic (2), wherein the functional ceramic (2) is completely enclosed by the ceramic substrate (1), wherein the functional ceramic (2) comprises a varistor, an NTC ceramic, a PTC ceramic or a ferrite, wherein the multilayer component (100) comprises a plurality of functional ceramics (2), and wherein the functional ceramics (2) have different expansion coefficients and / or different sintering temperatures.
Owner:TDK ELECTRONICS AG

Special-shaped precision detection resistor and production equipment thereof

The invention discloses a special-shaped precision detection resistor and production equipment thereof, and relates to the technical field of resistor production and manufacturing, the special-shaped precision detection resistor comprises an alloy red copper shell and two resistor cores arranged in the alloy red copper shell, and one side of the alloy red copper shell is provided with two leading-out ends; the lead-out end is electrically connected with the resistor core, the outer wall of the bottom of the alloy red copper shell and the outer wall of the top of the alloy red copper shell are respectively provided with a plurality of groups of heat dissipation grooves and heat dissipation assemblies which are distributed at equal intervals, and the heat dissipation mechanism is located in the alloy red copper shell and comprises two water cooling pipes. The special-shaped precision detection resistor and the production equipment thereof disclosed by the invention have the effects of improving the stability of the resistor core during use, enhancing the heat dissipation performance of the resistor core, ensuring the reliability and safety of a system, improving the working efficiency of a brake resistor, prolonging the service life of the brake resistor, controlling and reducing the thermoelectromotive force and avoiding the occurrence of a condition of overhigh parasitic inductance.
Owner:FOSHAN HAOYUN ELECTRICAL APPLIANCE ACCESSORIES CO LTD

A double row lead frame resistor

The application provides a double-row lead frame resistance. The double-row lead frame resistance comprises a lead frame, a resistance, and the two ends of the first coil and the second coil are respectively installed with the lead wires; a protective cover; a cooling mechanism, the inside of the protective cover is fixedly connected with the supporting rod, the bottom end of the supporting rod is installed with the air bag; the top end of the supporting rod is internally installed with the fixed block and the fixed frame, the inside of the fixed block is slidably connected with the piston, the inside of the piston and the fixed block is respectively installed with the magnetic ring, the magnetic rings are attracted to each other; the inside of the fixed frame is slidably connected with the sliding rod, the sliding rod is fixedly connected with the piston, the side wall of the sliding rod is sleeved with the spring, and the two ends of the spring are respectively connected with the fixed frame and the piston; a cooling mechanism; a connecting mechanism. The double-row lead frame resistance provided by the application has the advantages of eliminating the self-induction of the coil, reducing the eddy current, and facilitating the dissipation of the heat inside the coil.
Owner:JIANGSU JIFU TECH ELECTRONICS CO LTD

Liquid-cooled power resistor

The utility model relates to a liquid cooling power resistor, which comprises a shell, a tubular power resistor, a flange plate, a flange sealing cover, a connecting sheet and cooling liquid, the tubular power resistor is arranged in the shell, two ends of the tubular power resistor are led out and fixed on the flange plate, the flange plate is connected on the flange sealing cover, and the flange sealing cover is connected with the shell. The connecting piece is installed on the flange sealing cover and connected with the power resistor, and the shell is filled with the cooling liquid. Compared with the prior art, the tubular power resistor is arranged in the shell filled with the cooling liquid and is sealed through the flange plate and the sealing flange cover, so that the sealing performance is good, and the size is small; the U-shaped tubular power resistors which are arranged in a crossed manner are adopted, and a liquid outlet pipeline and a liquid outlet in the sealing flange cover are integrally designed, so that the space of an inner cavity is effectively utilized, the heat exchange efficiency is high, and the structure is compact; the shell is of a Teflon or aluminum casting integrated structure, and has the advantages of high and low temperature environment resistance, cooling medium resistance, excellent pressure bearing performance and the like.
Owner:SHANGHAI KRAH ELECTRONICS CO LTD

Ceramic sensor with metallized layer

The present invention relates to a sensor comprising a ceramic substrate (1) and two metallization layers (2) applied on opposite surfaces of the ceramic substrate (1), each having an adhesion layer (2A) applied directly onto the ceramic substrate (1) and a gold layer (2B) applied on each adhesion layer (2A). Furthermore, the present invention relates to a method for manufacturing the sensor.
Owner:TDK ELECTRONICS AG