阅读说明：本技术 一种新能源动力汽车真空陶瓷继电器 (A kind of new energy power vehicle vacuum ceramic relay ) 是由 方豪杰 贺亦文 张晓云 于 2019-08-20 设计创作，主要内容包括：本发明提供一种新能源动力汽车真空陶瓷继电器,包括通过软垫密封固定安装的上部和下部,所述上部包括陶瓷绝缘件、动触头和静触头；所述陶瓷绝缘件呈框形且底部设置有圆孔,所述静触头贯穿圆孔通过钎焊密封固定,所述陶瓷绝缘件底侧设置有固定杆,所述动触头沿固定杆滑动固定；所述下部包括线路板和电磁组件,所述电磁组件包括磁组件、动力芯以及绕绞在动力芯外周的线圈,所述动触头通过弹性件与动力芯连接；所述线路板与线圈连接。本发明提供的继电器触头既具有具有电流分断能力大、耐压强度高、抗焰焊性能好、高电导率、高热导率、电弧烧损率低、截流值低、较高的机械强度、抗变形和抗磨损性能的特点。(The present invention provides a kind of new energy power vehicle vacuum ceramic relay, and including the upper and lower part being fixedly mounted by cushion sealing, the top includes ceramic insulator, moving contact and static contact；The ceramic insulator is provided with circular hole in frame shape and bottom, and the static contact is fixed through circular hole by sealed with brazing, and the ceramic insulator bottom side is provided with fixed link, and the moving contact is slided along fixed link and fixed；The lower part includes wiring board and electromagnetic assembly, and the electromagnetic assembly includes magnetic assembly, power core and the coil around strand in power core periphery, and the moving contact is connect by elastic component with power core；The wiring board is connect with coil.Relay contact provided by the invention had both had the characteristics that with electric current breaking capacity is big, compressive resistance is high, anti-flame weldering performance is good, high conductivity, high heat conductance, electrical arc erosion rate is low, shutting off is worth low, higher mechanical strength, resistance to deformation and wear resistance.)

1. a kind of new energy power vehicle vacuum ceramic relay, it is characterised in that: including what is be fixedly mounted by cushion sealing Upper and lower part, the top include ceramic insulator, moving contact and static contact；The ceramic insulator is set in frame shape and bottom It is equipped with circular hole, the ceramic insulator is alumina base electrical insulating material preparation gained；The static contact passes through through circular hole Sealed with brazing is fixed, and the ceramic insulator bottom side is provided with fixed link, and the moving contact is slided along fixed link and fixed；Under described Portion includes wiring board and electromagnetic assembly, and the electromagnetic assembly includes magnetic assembly, power core and the line around strand in power core periphery Circle, the moving contact are connect by elastic component with power core；The wiring board is connect with coil；It is provided with and draws on the wiring board Stitch, the moving contact and static contact respective area are provided with pit.

2. a kind of moving contact according to claim 1, it is characterised in that；Component meter by weight includes following component:

3. a kind of production method of moving contact according to claim 2, which comprises the following steps:

S1: 20-30 part sodium hydroxide solution that w/v is 10% is added in Co, W, Cu, Ag powder of the parts by weight In, 5-8 part acetone are added, after stirring 1h, the silver nitrate solution that w/v is 2~5% is added, pH is 10~12 for adjusting, The solution colloid that 10-20 parts of formalins carry out metal powder is added；

S2: the dispersing agent, pelopon A of described weight ratio part are added in distilled water, then add the weight Graphene dispersion solution is obtained using 30~60min of ultrasonic treatment than the graphene of part；

S3: the colloid metallic solution obtained to the S1 step is added in graphene dispersion solution acquired in the S2 step In, the coupling agent of the ratio is added, after stirring 5~10min, chitosan acetic acid-polyethyleneimine of the ratio is added, adds Enter 0.5-2 parts of formalins and stir 5~10min and obtains chitosan acetic acid-polyethyleneimine cladding colloid metallic microspheres Ethanol washing is added twice in solution；

The TiB of the component is added in the colloid metallic microspheres solution that S4: Xiang Suoshu S3 step obtains₂、AlN、Al₂O₃、Y₂O₃、 Hydroxyapatite, sodium tartrate, after stirring 10~15min, cross-linked binder and the filled high polymer for adding the ratio are poly- Close object；

Benzoyl peroxide is added in the mixture that S5: Xiang Suoshu S4 step obtains, mixes, adds in single screw extrusion machine Extrusion molding in the mold of moving contact is placed in baking oven and processes under reducing atmosphere condition, first with 30 DEG C/h heating as 100~ 110 DEG C, 1h is kept, 200~250kg/cm is then forced into 140~150 DEG C of preheating 10min~15min using hot press³ 30~40min is post-processed, moving contact blank is made；

S6: moving contact blank is subjected to sanding and polishing, moving contact pit surface Ra is less than 0.05.

4. the production method of moving contact according to claim 3, which is characterized in that the cross-linked binder is polyethers ether One or more of ketone, polymethyl methacrylate or diisopropyl alkenyloxy group diphenyl silane.

5. a kind of production method of moving contact according to claim 3, which is characterized in that the dispersing agent be isopropanol, One or more of ethyl alcohol, DMSO, DMF.

6. according to the production method of moving contact as claimed in claim 3 to 5, it is characterised in that: the filled high polymer polymerization Object is that filler is uniformly filled in the network base structure of high molecular polymer formation, the system of the filled high polymer polymer Preparation Method the following steps are included:

S1: 50mg polyoxyethylene grafting poiyoxypropylene copolymer is dissolved in 4 DEG C of 5~10ml of distilled water, by the height of 4~5M Molecularly Imprinted Polymer is separately added into the N of 0.3~0.4M after stirring 50~70min, and N '-methylene-bis-acrylamide, 0.8~ The potassium peroxydisulfate of 1.0M and the N of 0.4~0.5M, N, N ', N '-tetramethylethylenediamine forms high molecular polymer network matrix knot Structure colloid；

S2: the high molecular polymer network base structure colloid that the step S1 is obtained is dissolved in the step S2, is formed dense The colloidal solution that degree is 50~55%；

Pentanediol is added in the colloidal solution that S3: Xiang Suoshu S2 step obtains, after stirring 1~2min, filler powder, In is added Stirring frequency is gradually increased under the frequency amplification of 45~50r/min to 100~300r/min, is added two after stirring 15~20min First sulfoxide is dried to obtain filled high polymer polymer in being dried in vacuo under environment；

The filler is one or more of inorganic salts, metal or metal oxide.

7. the production method of moving contact according to claim 6, which is characterized in that the inorganic salt filler is tricresyl phosphate One or more of calcium, magnesium sulfate, ammonium vanadate, cobalt potassium nitrite；The metal be one of Ni, Ti, Cu, Al, Lu or It is several.

8. the production method of moving contact according to claim 6, which is characterized in that the metal oxide be zirconium oxide, One or more of beryllium oxide, yttria.

9. according to the production method of the moving contact any in claim 6, which is characterized in that the high molecular polymer is Polyamide, high density polyethylene (HDPE), hydroxycyclohexylphenylketone, styrene/one of acrylamide copolymer or polysiloxanes Or it is a variety of.

10. according to the production method of the moving contact any in claim 6, which is characterized in that the chitosan acetic acid-is poly- The preparation method of aziridine the following steps are included:

S1: 1~2g Chitosan powder is dissolved in the acetic acid solution that 80~120ml volume fraction is 1%, obtains chitosan acetic acid Solution is added polyethyleneimine into the chitosan acetic acid solution according to the ratio that percent weight in volume is 5~15%, stirs Mix 5~10min；

In the mixed solution that S2: Xiang Suoshu S1 step obtains be added 0.25~0.5M hypophosphorous acid, room temperature processing 18~for 24 hours after in 5~10h of vacuum drying oven drying, obtains chitosan acetic acid-polyethyleneimine polymers.

Background technique

As new-energy automobile is gradually from research and development to batch status transition is produced, the related accessory of new-energy automobile is also from largely grinding Hair moves towards volume production, and the relay of new-energy automobile power battery is different from relay used in orthodox car, it has carrying The features such as voltage is high, current-carrying load is big, control logic is complicated, to meet relay to the requirement of new-energy automobile, wherein The demand of contact material is also increasing, and electrical contact is the important member of switch, relay, electrical connection and electrical connector block Part, plays a part of conducting, carrying and breaking current, and performance directly affects the reliability of conducting system work, stability And accuracy.Ideal electrical contact material must have good physical property, mechanical property, electrical contact performance and chemical property Deng.

Relay is widely applied in new-energy automobile, and usage amount increases sharply.Moving contact and stationary contact in relay Electric arc is also easy to produce when head disjunction, and electric arc acts on moving contact maximum, generation high temperature and pressure electric current, under arcing, contact Material locally dissolves and generates splash, eventually results in contact deformation failure.Therefore, the main performance index of moving contact includes point Cutting capacity, value of shutting off, it is anti-scrupulously and respectfully property, arc resistant burn candle property, abrasion resistance properties etc..When the distributed components of contact material, tool When having high electrical and thermal conductivity performance, the electric arc that drop-out current generates would not gather and generate hot-spot area, can keep away Exempt from disjunction failure, improves breaking capacity and its arc resistant ablation ability.Vacuum switch to the Property requirements of contact material there is Many incompatibilities, therefore, it is necessary to prepare one kind have electric current breaking capacity is big, compressive resistance is high, anti-flame weldering performance it is good, High conductivity, high heat conductance, electrical arc erosion rate are low and the low-vacuum load-tripping device contact for being worth the features such as low that shuts off is as urgently to be solved Technical problem.The relay contact made from currently used metal material and alloy material, is all difficult to meet vacuum and open The requirement of pass, so, it is also desirable to a kind of material of relay contact solves the demand.

Summary of the invention

The present invention in view of the foregoing drawbacks, provides a kind of new energy power vehicle vacuum ceramic relay, moving contact electric current Breaking capacity is big, compressive resistance is high, anti-flame weldering performance is good, high conductivity, high heat conductance, electrical arc erosion rate are low and shut off be worth it is low. And then promote stability, safety and the service life of new energy power vehicle vacuum ceramic relay.

A kind of new energy power vehicle vacuum ceramic relay, including the top by cushion sealing fixed installation under Portion, the top include ceramic insulator, moving contact and static contact；The ceramic insulator is provided with circle in frame shape and bottom Hole, the ceramic insulator are alumina base electrical insulating material preparation gained；The static contact is close by being brazed through circular hole Sealing is fixed, and the ceramic insulator bottom side is provided with fixed link, and the moving contact is slided along fixed link and fixed；The lower part includes Wiring board and electromagnetic assembly, the electromagnetic assembly include magnetic assembly, power core and around twist power core periphery coil, it is described Moving contact is connect by elastic component with power core；The wiring board is connect with coil；Terminal pin, institute are provided on the wiring board It states moving contact and static contact respective area is provided with pit.

The invention discloses a kind of moving contacts；Component meter by weight includes following component:

The invention discloses a kind of production methods of moving contact, comprising the following steps:

S1: 20-30 part sodium hydroxide that w/v is 10% is added in Co, W, Cu, Ag powder of the parts by weight In solution, 5-8 part acetone are added, after stirring 1h, are added the silver nitrate solution that w/v is 2~5%, adjusting pH 10~ 12, the solution colloid that 10-20 parts of formalins carry out metal powder is added；

S2: the dispersing agent, pelopon A of described weight ratio part are added in distilled water, then are added described The graphene of weight ratio part obtains graphene dispersion solution using 30~60min of ultrasonic treatment；

S3: the colloid metal obtained to the S1 step is added in graphene dispersion solution acquired in the S2 step In solution, the coupling agent of the ratio is added, after stirring 5~10min, chitosan acetic acid-polyethyleneimine of the ratio is added Amine, is added 0.5-2 parts of formalins and 5~10min of stirring obtains chitosan acetic acid-polyethyleneimine cladding colloid metal Ethanol washing is added twice in microspheres solution；

The TiB of the component is added in the colloid metallic microspheres solution that S4: Xiang Suoshu S3 step obtains₂、AlN、Al₂O₃、 Y₂O₃, hydroxyapatite, sodium tartrate, stir 10~15min after, add the ratio cross-linked binder and filling high score Sub- polymer.

S5: mixture obtained in above-mentioned S4 step mixes in single screw extrusion machine, adds in the mold of moving contact Extrusion molding is placed in baking oven and processes under reducing atmosphere condition, is first heated up with 30 DEG C/h as 100~110 DEG C, keeps 1h, Then using hot press in 140~150 DEG C of preheating 10min~15min, be forced into 200~250kg/cm3 post-process 30~ Moving contact blank is made in 40min；

S6: moving contact blank is subjected to sanding and polishing, moving contact pit surface Ra is less than 0.05.

The cross-linked binder is in polyether-ether-ketone, polymethyl methacrylate or diisopropyl alkenyloxy group diphenyl silane It is one or more of.

The dispersing agent is one or more of isopropanol, ethyl alcohol, DMSO, DMF.

The filled high polymer polymer is the network base structure that filler is uniformly filled in high molecular polymer formation In, the preparation method of the filled high polymer polymer the following steps are included:

S1: 50mg polyoxyethylene grafting poiyoxypropylene copolymer is dissolved in 4 DEG C of 5~10ml of distilled water, by 4~5M High molecular polymer, stir 50~70min after, be separately added into the N of 0.3~0.4M, N '-methylene-bis-acrylamide, 0.8 The potassium peroxydisulfate of~1.0M and the N of 0.4~0.5M, N, N ', N '-tetramethylethylenediamine forms high molecular polymer network matrix Structure colloid；

S2: the high molecular polymer network base structure colloid that the step S1 is obtained is dissolved in the step S2, shape The colloidal solution for being 50~55% at concentration；

Pentanediol is added in the colloidal solution that S3: Xiang Suoshu S2 step obtains, after stirring 1~2min, filler powder is added End gradually increases stirring frequency to 100~300r/min under the frequency amplification of 45~50r/min, adds after stirring 15~20min Enter dimethyl sulfoxide, is dried to obtain filled high polymer polymer in being dried in vacuo under environment；

The filler is one or more of inorganic salts, metal or metal oxide.

The inorganic salt filler is one or more of tricalcium phosphate, magnesium sulfate, ammonium vanadate, cobalt potassium nitrite；Institute Stating metal is one or more of Ni, Ti, Cu, Al, Lu.

The metal oxide is one or more of zirconium oxide, beryllium oxide, yttria.

The high molecular polymer is polyamide, high density polyethylene (HDPE), hydroxycyclohexylphenylketone, styrene/acryloyl One of amine copolymer object or polysiloxanes are a variety of.

The preparation method of the chitosan acetic acid-polyethyleneimine the following steps are included:

S1: 1~2g Chitosan powder is dissolved in the acetic acid solution that 80~120ml volume fraction is 1%, obtains chitosan Polyethyleneimine is added into the chitosan acetic acid solution according to the ratio that percent weight in volume is 5~15% in acetic acid solution Amine stirs 5~10min；

The hypophosphorous acid of 0.25~0.5M of addition in the mixed solution that S2: Xiang Suoshu S1 step obtains, room temperature processing 18~for 24 hours It is dried afterwards in 5~10h of vacuum drying oven, obtains chitosan acetic acid-polyethyleneimine polymers.

The invention has the benefit that

1, new energy richness power vehicle low-vacuum load-tripping device can generate electric arc in breaking current, under arcing, stationary contact Head generates high temperature and pressure electric arc to moving contact, and moving contact material locally dissolves and generate splash, eventually results in contact deformation and loses Effect.Therefore, moving contact material of the invention is by metal+electronic ceramics material+plus acylate and high molecular polymer, so that material Expect more uniform, electric current breaking capacity is big, compressive resistance is high, abrasion resistance properties are good, anti-flame weldering performance is good, high conductivity, high fever Conductance, electrical arc erosion rate are low and shut off and be worth low, while the toughness that moving contact material has more had, W and graphene in material, true In Altitude, graphene will not be oxidized at high temperature, have good high compressive strength, high rigidity, the graphene and W after being dispersed In moving contact extexine, there is good electric conductivity, high pressure resistance and heat-resisting quantity.Add TiB₂、Al₂O₃、Y₂O₃Material is reinforced The mechanical strength of moving contact, hardness and anti-pressure ability and wear resistance enhancing.Static contact can also be used equally in the present invention Moving contact material production, by the further ability for promoting new energy power vehicle relay.

2, graphene can disperse well in water and organic solvent, by point of aqueous solutions of organic solvent effect graphene Powder, is more beneficial to the dispersion of graphene, and neopelex stirs in the centrifugation of high speed as surfactant and trembles work Under, the single layer rate of graphene is higher, and single layer rate can reach 4wt%, and single-layer graphene is one of highest material of known strength, The theoretical Young's modulus of graphene reaches 1.0TPa, and intrinsic tensile strength is 130GPa, promotes the single layer rate of graphene, will be to true The surface conductance ability and anti-pressure ability of empty Metal Substrate battery relay contact material are substantially improved.In vacuum environment, stone For black alkene in high temperature, high pressure and in the case where have electric arc, the conductive separation capacity of graphene, high temperature resistant, resistance to electric arc ability are superpower, Recombinant Co and W further promote high rigidity, the resistance to electric arc ability of vacuum metal base battery relay contact material；Add Cu And Ag, the current distributing ability of vacuum metal base battery relay contact material is promoted, TiB is added₂And AlN, promote vacuum The hardness and abrasive resistance of Metal Substrate battery relay contact material.Yttrium oxide can effectively reduce the grain size of tungsten alloy, make

3, the present invention uses Co, W, Cu and Ag metal composite TiB₂And AlN formation metal-based compound colloid metal is micro- After ball, then by graphene dispersing solution by conjunction with the chitosan of preparation acetic acid-polyethyleneimine polymers film coated, graphite Alkene connects metallic microspheres, and Cu and Ag's conducts electricity very well, and W and graphene are firmly high, TiB₂The resistance to compression of entire material is promoted with AlN Ability, chitosan acetic acid-polyethyleneimine form intermediate course, be eventually adding hydroxyapatite, neopelex and Cross-linked polymeric is carried out by cross-linked binder and filled high polymer polymer after sodium tartrate, filled high polymer polymer is as most Internal layer substance is coated and is encapsulated by external sheath material, and being formed has conductive metal-based compound nano vacuum new energy power vehicle Vacuum ceramic relay can reach matched seal with relay1 case and have satisfactory electrical conductivity, reach lower and connect Electric shock hinders and stablizes, and allows temperature rise higher.

4, high molecular polymer has low electrical and thermal conductivity performance, low melting point, reaches and extends in fragmentation procedure existing for electric arc Time to reduce the technical effect that value of shutting off improves electric current breaking capacity, and since high molecular polymer can make hoe material Mechanical strength, resistance to deformation and wear resistance with higher；Conductive metal material uses colloid metal nano microballoon, It can be improved the conductivity and thermal conductivity of low-vacuum load-tripping device contact, and then play and improve thermal stability, compressive resistance and reduce electricity The technical effect of arcing loss rate.

5, high as linking colloid metal nano microballoon and filling using chitosan acetic acid-polyethyleneimine intermediate course The effect of Molecularly Imprinted Polymer, it is inorganic that sintering method introduces hydroxyapatite, neopelex and sodium tartrate in the process Salt plays the role of filled high polymer polymer support and adhesive using the decomposition of inorganic salts during the sintering process.

6, the superfine ceramic particle for being uniformly distributed and dispersing is introduced in metallic matrix, forms metal pottery during the sintering process The preparation method of porcelain composite material enhances the intensity of final ceramic-metal composite due to the introducing of ceramic particle.It is raw Production method is quick, low cost.

7, relay work being controlled by wiring board, accomplishes to accurately control, facilitates operation, wiring board can access signal wire, Practical linkage control.

8, pit is set on moving contact, and pit corresponds to static contact Aided design, when strengthening moving contact and static contact use Good contact, electric arc is excessive caused by avoiding because of poor contact.

9, ceramic insulator is alumina base electrical insulating material preparation gained；Ceramic insulator is with most compositions Aluminium oxide, then add a small amount of zirconium oxide, titanium oxide, cerium oxide etc. other metal oxides are sintered together, have high-strength The features such as degree, high abrasion, high dielectric property, while there is good air-tightness, further, the outer surface at fixed static contact By type metal slurries, low-temperature sintering makes ceramic metallization again, promotes the electric conductivity of relay.

Detailed description of the invention

Cross sectional portion structural schematic diagram Fig. 1 of the invention；

Fig. 2 interior section structural schematic diagram of the present invention；

Appended drawing reference: 1, static contact；2, ceramic insulator；3, moving contact；4, fixed link；5, elastic component；6, cushion；7, magnetic Component；8, coil；9, wiring board；10, terminal pin；11, pit.

Specific embodiment

Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the scope of protection of the invention.