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Horizontal-opposed diaphragm type electric vacuum pump

An electric vacuum pump, horizontally opposed technology, applied in variable capacity pump components, pumps, pump components, etc., can solve problems such as pedal sinking, brake vacuum booster damage, etc., to meet braking performance and reduce volume , the effect of reducing production costs

Pending Publication Date: 2019-07-19
SHIJIAZHUANG JIAXIN AUTOMOTIVE BRAKE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it falls below the allowable value of the working range, the pedal will feel heavy, which is also a kind of damage to the brake vacuum booster.

Method used

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  • Horizontal-opposed diaphragm type electric vacuum pump
  • Horizontal-opposed diaphragm type electric vacuum pump
  • Horizontal-opposed diaphragm type electric vacuum pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The technical solutions of the present invention will be further described below through specific examples.

[0032] like Figure 1-Figure 4 A horizontally opposed diaphragm type electric vacuum pump is shown, including a pump body 9, a DC motor 1, a motor shaft 2, a linkage assembly, an end cover 3 and a diaphragm assembly 4, and a reinforced nylon injection-molded pump body 9, reinforced nylon injection-molded and The end cover 3 with the air passage inside, the linkage assembly includes the connecting rod assembly, the bearing 6 and the eccentric crank 10, the eccentric crank 10 is connected with the motor shaft 2, the end cover 3 is provided on both sides of the pump body 9, and the DC motor 1 is set At the bottom of the pump body 9, the DC motor 1 is connected to the eccentric crank 10 through the motor shaft 2 to drive its movement, the eccentric crank 10 is connected to the connecting rod assembly 5 through the bearing 6, the connecting rod assembly 5 is connecte...

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Abstract

The invention provides a horizontal-opposed diaphragm type electric vacuum pump. The horizontal-opposed diaphragm type electric vacuum pump comprises a pump body, a direct-current motor, a motor shaft, a linkage assembly, end covers and diaphragm assemblies. The two sides of the pump body are provided with the end covers. The direct-current motor is arranged on the bottom of the pump body. The direct-current motor drives the linkage assembly through the motor shaft to move. The diaphragm assemblies are horizontally and symmetrically arranged in a cavity of the pump body and are close to the positions of the end covers. The linkage assembly is connected with the diaphragm assemblies. When the direct-current motor works, the linkage assembly drives the diaphragm assemblies to stretch out andretract at the same time, and therefore change of volume of space between the end covers and the diaphragm assemblies is formed. The horizontal-opposed diaphragm type electric vacuum pump has the beneficial effects that reliable vacuum sources can be provided no matter what kind of power source an automobile uses, and the automobile is in a working state when a vacuum booster is braked.

Description

technical field [0001] The invention relates to the field of electric vacuum pumps, in particular to a horizontally opposed diaphragm electric vacuum pump. Background technique [0002] As an energy-saving, pollution-free ideal "zero-emission" vehicle, electric vehicles are increasingly receiving widespread attention and attention from all over the world. However, due to technical constraints and actual national conditions, most of the various researches on electric vehicles in our country can only be modified on the basis of existing internal combustion engine vehicles. The vast majority of cars use vacuum-assisted servo braking systems to use both manpower and power. For the braking system of traditional gasoline engine small cars, the vacuum source of the vacuum booster comes from the engine intake manifold. For pure electric vehicles or fuel cell vehicles converted from traditional models, after the engine assembly is removed, the braking system has no The vacuum boost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B45/047F04B39/10F04B39/00F04B37/14
CPCF04B45/047F04B39/10F04B39/0083F04B39/0044F04B37/14
Inventor 李建忠
Owner SHIJIAZHUANG JIAXIN AUTOMOTIVE BRAKE SYST
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