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Washing pump for automobile windscreen wipers

A technology for washing pumps and automobiles, applied in the field of washing pumps, can solve problems such as cumbersome

Inactive Publication Date: 2014-12-17
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the subsequent maintenance process, the replacement of the fuse also generates a certain maintenance cost, and it is also relatively cumbersome.

Method used

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  • Washing pump for automobile windscreen wipers
  • Washing pump for automobile windscreen wipers
  • Washing pump for automobile windscreen wipers

Examples

Experimental program
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Embodiment Construction

[0022] The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings. The drawings are provided for reference and illustration only, and are not intended to limit the present invention. The dimensions shown in the drawings are only for the convenience of clear description, and do not limit the proportional relationship.

[0023] see figure 1 and figure 2 The washing pump 10 according to the preferred embodiment of the present invention includes a motor 20, an impeller 40 connected to the motor 20 and driven by it, and a pump casing 50 fixed to the motor 20 and housing the impeller 40 therein. The pump housing 50 has an inlet 52 which leads to a container containing water or detergent and an outlet 54 for delivering said water or detergent. When the motor 20 works, it drives the impeller 40 to rotate, so that ...

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Abstract

The invention provides a washing pump used for pumping water or detergent and matching with automobile windscreen wipers for cleaning windscreens. The washing pump comprises a pump casing, an impeller and a motor, the impeller is contained in the pump casing, the motor drives the impeller and comprises a stator, a rotor and an end cover component, the rotor is mounted to the stator, and the end cover component comprises an end cover, a plurality of electric brushes, a plurality of connection plates and a positive temperature coefficient thermistor. The electric brushes are fixed to the end cover, the connection plates are used for being connected to an external power source, and one of the connection plates is connected to one of the electric brushes through the thermistor. By the aid of the thermistor, resistance of the thermistor can be increased rapidly when the temperature of the thermistor rises to a certain degree, so that only a small current flows through the motor, and the motor is protected from being burnt out.

Description

technical field [0001] The present invention relates to pumps, in particular to a washing pump for automobile windshield wipers. Background technique [0002] In order to achieve a better cleaning effect, the car wiper usually sprays water or detergent to the window glass through a pump when it is working. The pump includes a motor and an impeller. In an environment with a temperature below zero, when the car has not been operated for a long time, the water or detergent is likely to freeze, causing the impeller to freeze. In this way, when the motor is energized, since the impeller cannot rotate, the motor will generate a large amount of heat in a short period of time, which will cause the motor to burn out. To solve this problem, a fuse is usually connected between the power supply and the motor. So, in the above case, only the fuse will be blown. However, in the subsequent maintenance process, the replacement of the fuse also generates a certain maintenance cost, and is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/00H02K7/14F04D13/06
CPCF04D29/4293H02K5/145H02K5/225H02K11/02F04D15/0016F04D13/0693H02K5/22
Inventor 陈志强杨云波
Owner JOHNSON ELECTRIC SHENZHEN
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