CN203096432U

CN203096432U - Detergent residue detection device of washing machine

Info

Publication number: CN203096432U
Application number: CN 201320045080
Authority: CN
Inventors: 李全坤; 杨宇澄; 金乃庆; 邓浩; 陈绍一
Original assignee: Hefei Rongshida Sanyo Electric Co Ltd
Current assignee: Whirlpool China Co Ltd
Priority date: 2013-01-28
Filing date: 2013-01-28
Publication date: 2013-07-31
Anticipated expiration: 2023-01-28

Abstract

The utility model provides a detergent residue detection device of a washing machine. A water storage pipe is arranged on the upper end face of a drain pipe in an inner barrel of the washing machine and is communicated with the drain pipe. A detection device for detecting resistance of water solution is arranged inside the water storage pipe. An output end of the detection device is electrically connected with a program controller. A first water inlet pipe with a first water inlet valve and a second water inlet pipe with a second water inlet valve are arranged above the inner barrel of the washing machine. The second water inlet pipe penetrates through a detergent box. The first water inlet valve and the second water inlet valve are respectively and electrically connected with the program controller. The detergent residue detection device is simple in structure, low in cost, and capable of accurately judging concentration of detergent, judging whether detergent residue exists in clothes, and increasing frequency of rinsing according to actual conditions so as to reduce harm of the detergent residue to the clothes and human bodies, and enables the washing machine to be intelligent and humanized.

Description

A kind of residue detection device of washing machine washing agent

Technical field

The utility model relates to the washing machine technical field, is specifically related to the washing agent residue detection device on a kind of washing machine cleaning clothes.

Background technology

The dirt of clothing is removed as washing agent all adding suitable surfactant in the cleaning of clothing, clothing is mechanism such as to clash into mutually in current, laundry barrel and the mutual friction mutually between laundry to make attached to the foul on the clothing and break away from.After dirt on the clothing is removed,, the residue problem of washing agent residual on the clothing is also received increasing concern along with healthy, green life idea are rooted in the hearts of the people.Because residual on the clothing have a washing agent, not only injure dress material, more the skin to human body has certain injury; Residual washing agent is considered to bring out human allergy's one of the main reasons at present.

Clothing in the family all adopts washing machine to clean at present, washing machine according to the program of setting clean length by length, rinsing, dehydration, it can not discern what of amount of the washing agent of adding, and whether more also residual on the clothing after judgement that can not be clear and definite or the rinsing of the information of detection have a washing agent.Judge washing machine cleans on the clothing whether the residual of washing agent is arranged later, only in the airing process of clothing it is simply judged at present, perhaps reexamines the remaining trace of washing agent on it after clothing dries.

At present people clean on the clothing later residual washing agent to the injury of clothing or human body in order to reduce, and normally rinsing number of times by increasing clothing or the use amount that reduces washing agent reach and reduce the residual of washing agent on the clothing.But the rinsing number of times that increases clothing is waste water resource and electric energy inevitably then, has increased use cost; And because the increase meeting of wash number has certain injury to clothing itself.If reduce the use amount of washing agent then can influence the clean result of clothing, and it is unholiness to cause clothing to clean.

The utility model content

In order to solve above-mentioned deficiency, the utility model provides a kind of residue detection device of washing machine washing agent.

A kind of residue detection device of washing machine washing agent, comprise the sink of being located at the washing machine inner tub top, the washing machine inner tub delivery port is connected with the drainpipe of band draining valve, described draining valve is electrically connected with the program controller of washing machine, the upper end of described drainpipe is provided with the water pipe that is communicated with it, and described water pipe is between washing machine inner tub delivery port and draining valve; Described water pipe inside is provided with the checkout gear that is used to detect its aqueous solution resistance, and the output of described checkout gear is electrically connected with described program controller; Described washing machine inner tub top is provided with first water inlet pipe of first water intaking valve and second water inlet pipe with second water intaking valve, and described second water inlet pipe passes through sink; Described first water intaking valve, second water intaking valve are electrically connected with described program controller respectively.

Described checkout gear is first test probe and second test probe, and described first test probe and second test probe are located at the top and the middle part of water pipe inside respectively.

Because the Main Ingredients and Appearance of washing agent comprises surfactant, auxiliary agent, filler, organized enzyme etc., owing to there being electrolyte ionization to produce electric current in the detergent solution, change along with the variation of electrolyte concentrations such as inorganic acid, alkali, salt or organic charged colloidal particle in the solution.According to the electric resistance partial pressure principle, the unit resistance of solution is more little to show that then the electric conductivity of solution is strong more, so the concentration of washing agent is big more in the washing machine sewer pipe, then its unit resistance is more little, otherwise then big more.The present invention according to water pipe that washing machine sewer pipe communicates in the resistance variations indirect detection of the aqueous solution go out the concentration of washing agent, judge through washing machine to clean on the clothing whether the residual of washing agent is arranged later then.And then determine the number of times whether needs are set up rinsing according to its resistance situation, and reduce the residual injury of washing agent thereby reach to clothing, human body, make washing machine intellectuality and hommization more.

So this checkout gear is simple in structure, cost is low; The result's of its detection precision height, signal stabilization; And the resistance of the aqueous solution of resistance when not adding washing agent of the aqueous solution compares in the drainpipe after finishing according to rinsing, thereby reaches in the concentration of judging washing agent and the clothing whether the residual of washing agent is arranged; And can increase the number of times of rinsing according to actual conditions, reach and reduce the residual injury of washing agent, make washing machine intellectuality and hommization more clothing, human body.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is a checkout gear structural representation of the present utility model;

Fig. 2 is the utility model schematic block circuit diagram;

Among the figure: 1-first water inlet pipe, 2-second water inlet pipe, bucket in the 3-sink, 4-, the outer bucket of 5-, 6-water pipe, 7-first test probe, 8-second test probe, 9-draining valve, 10-drainpipe, 11-first water intaking valve, 12-second water intaking valve, 13-program controller.

The specific embodiment

As shown in Figure 1 and Figure 2, a kind of residue detection device of washing machine washing agent, washing machine is made up of outer bucket 5 and interior bucket 4, interior bucket 4 tops are provided with sink 3, interior bucket 4 delivery ports are connected with the drainpipe 10 of band draining valve 9, described draining valve 9 is electrically connected with the program controller 13 of washing machine, and the upper end of described drainpipe 10 is provided with the water pipe 6 that is communicated with it, and described water pipe 6 is between interior bucket 4 delivery ports and draining valve 9; The top of described water pipe 6 inside and middle part are respectively equipped with first test probe 7 and second test probe 8 that is used to detect its aqueous solution resistance, and described first test probe 7 is electrically connected with program controller 13 with the output of second test probe 8; Bucket 4 tops are provided with first water inlet pipe 1 of first water intaking valve 11 and second water inlet pipe 2 with second water intaking valve 12 in described, and described second water inlet pipe 2 is by sink 3; Described first water intaking valve 11, second water intaking valve 12 are electrically connected with described program controller 13 respectively.

Above embodiment is not limited only to protection domain of the present utility model, all make amendment based on basic thought of the present utility model or change all belong to protection domain of the present utility model.

Claims

1. the residue detection device of a washing machine washing agent, comprise the sink of being located at the washing machine inner tub top, the washing machine inner tub delivery port is connected with the drainpipe of band draining valve, described draining valve is electrically connected with the program controller of washing machine, it is characterized in that: the upper end of described drainpipe is provided with the water pipe that is communicated with it, and described water pipe is between washing machine inner tub delivery port and draining valve; Described water pipe inside is provided with the checkout gear that is used to detect its aqueous solution resistance, and the output of described checkout gear is electrically connected with described program controller; Described washing machine inner tub top is provided with first water inlet pipe of first water intaking valve and second water inlet pipe with second water intaking valve, and described second water inlet pipe passes through sink; Described first water intaking valve, second water intaking valve are electrically connected with described program controller respectively.

2. according to the residue detection device of the described washing machine washing agent of claim 1, it is characterized in that: described checkout gear is first test probe and second test probe, and described first test probe and second test probe are located at the top and the middle part of water pipe inside respectively.