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Connector in lawn mower

A connector and lawn mower technology, applied in the direction of connection, connecting device parts, contact parts, etc., can solve problems such as affecting the use of the connector, general thermal fatigue resistance, reducing the use efficiency and service life of the connector, etc. Achieve the effect of improving high strength, improving mechanical properties, and improving electrical conductivity

Inactive Publication Date: 2016-02-24
宁波市鄞州永佳连接器件厂(普通合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The connectors in the prior art are basically made of metal (such as copper alloy, aluminum alloy, etc.), although the electrical conductivity is better, the strength of the connector, especially the thermal fatigue resistance, is relatively general, which seriously affects the connector's performance. use, greatly reducing the efficiency and service life of the connector

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] According to the raw material ingredients described in the upper surface layer, the middle layer and the lower surface layer respectively: the raw material composition (mass percentage) of the silicon nitride ceramics of the upper surface layer and the lower surface layer is 92% Si 3 N 4 and 8%Y 2 o 3 , the raw material composition (mass percentage) of the intermediate layer silicon nitride ceramics is 1.8% SiO 2 , 0.8% carbon black, 4% Y 2 o 3 , balance Si 3 N 4 ; The particle size of the carbon black is 60-80nm, SiO 2 The particle size is 0.1-0.5μm, Y 2 o 3 The particle size is 0.2-1.2μm, Si 3 N 4 α-Si for α>95% 3 N 4 .

[0043] The ingredients were impregnated with an organic carrier and sintered at 1720° C. for 1.5 h under a nitrogen pressure of 0.4 MPa to obtain dry powders of the upper surface layer, the middle layer, and the lower surface layer.

[0044] Lay the prepared dry powders of the upper surface layer, the middle layer and the lower surface ...

Embodiment 2

[0048] According to the raw material ingredients described in the upper surface layer, the middle layer and the lower surface layer respectively: the raw material composition (mass percentage) of the upper surface layer and the lower surface layer silicon nitride ceramics is 94% Si 3 N 4 and 6%Y 2 o 3 , the raw material composition (mass percentage) of the intermediate layer silicon nitride ceramics is 1.0% SiO 2 , 0.9% carbon black, 5% Y 2 o 3 , balance Si 3 N 4 ; The particle size of the carbon black is 60-80nm, and the particle size of SiO2 is 0.1-0.5 μm, Y 2 o 3 The particle size is 0.2-1.2μm, Si 3 N 4 α-Si for α>95% 3 N 4 .

[0049] The ingredients were impregnated with an organic carrier and sintered at 1710° C. for 1 hour under a nitrogen pressure of 0.5 MPa to obtain dry powders of the upper surface layer, the middle layer, and the lower surface layer.

[0050] Lay the prepared dry powder of the upper surface layer, middle layer and lower surface layer in ...

Embodiment 3

[0054] According to the raw material ingredients described in the upper surface layer, the middle layer and the lower surface layer respectively: the raw material composition (mass percentage) of the silicon nitride ceramics of the upper surface layer and the lower surface layer is 93% Si 3 N 4 and 7%Y 2 o 3 , the raw material composition (mass percentage) of the intermediate layer silicon nitride ceramics is 2.5% SiO 2 , 0.6% carbon black, 2% Y 2 o 3 , balance Si 3 N 4 ; The particle size of the carbon black is 60-80nm, SiO 2 The particle size is 0.1-0.5μm, Y 2 o 3 The particle size is 0.2-1.2μm, Si 3 N 4 α-Si for α>95% 3 N 4 .

[0055] The ingredients were impregnated with an organic carrier and sintered at 1715° C. for 2 hours under a nitrogen pressure of 0.5 MPa to obtain dry powders of the upper surface layer, the middle layer, and the lower surface layer.

[0056] Lay the prepared dry powder of the upper surface layer, middle layer and lower surface layer i...

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Abstract

The invention relates to a connector, particularly relates to a connector in a lawn mower, and belongs to the technical field of alloy materials. The connector comprises a main shaft and is characterized in that the top end face of the main shaft is an arc-shaped surface, the bottom end face of the main shaft is a flat surface, the middle part of the main shaft extends outward in the radial direction and forms a cylindrical ring, the main shaft is provided with a conical ring, the conical ring is located between the bottom end of the main shaft and the cylindrical ring, and the outer diameter of the conical ring increases gradually from the bottom end of the main shaft to the top end of the main shaft. The connector is made of a three-dimensional network silicon nitride ceramic / aluminum alloy composite material, wherein the three-layer layered porous silicon nitride ceramic / aluminum alloy composite material comprises three-layer layered porous silicon nitride ceramic with the volume percent being 10-30% and aluminum alloy with the volume percent being 70-90%. The connector in the lawn mower is made of the three-layer layered porous silicon nitride ceramic / aluminum alloy composite material, has high mechanical properties such as high strength, high temperature stability, wear resistance and corrosion resistance, and also has good electrical conductivity, thermal fatigue resistance and the like.

Description

technical field [0001] The invention relates to a connector, in particular to a connector in a lawnmower, and belongs to the technical field of alloy materials. Background technique [0002] A connector is a common component in electronic engineering. Its function is very simple: to build a bridge of communication between blocked or isolated circuits in the circuit, so that the current can flow and the circuit can achieve the intended function. . Connectors are an indispensable part of electronic equipment. If you follow the path of current flow, you will always find one or more connectors. The form and structure of connectors are ever-changing, and there are various forms of connectors depending on the application object, frequency, power, application environment, etc. For example, there is a big difference between the light connector on the field and the hard drive connector and the rocket connector. But no matter what kind of connector, it is necessary to ensure that t...

Claims

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Application Information

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IPC IPC(8): H01R13/03H01R13/502
CPCH01R13/03H01R13/502
Inventor 杨继波
Owner 宁波市鄞州永佳连接器件厂(普通合伙)
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