CN201272910Y - Washing machine equipped with turbidity sensor - Google Patents

Abstract

The utility model discloses a washing machine equipped with a turbidity sensor, which comprises a drain valve and a turbidity sensor. The drain valve is provided with a support seat communicating with the valve cavity, and a support is provided on the support seat. A turbidity sensor is mounted on the bracket. By installing a bracket on the support seat, the length of the support seat is increased, and the distance between the turbidity sensor and the valve cavity of the drain valve is extended, so that the detection part of the lower part of the turbidity sensor is far away from the valve cavity, and the chance of foam surrounding the turbidity sensor is reduced. It effectively avoids the direct contact between the sensor detection part and the foam, improves the detection accuracy of the sensor, and realizes the purpose of saving water, electricity and time.

Description

Washing machine with turbidity sensor installed

technical field

The utility model relates to a washing machine equipped with a turbidity sensor, in particular to an installation structure of the turbidity sensor on the washing machine.

Background technique

The programs of ordinary fully automatic washing machines are fixed, and the washing time and the number of rinsing times are preset before washing and cannot be changed according to the washing state. When washing clothes, no matter whether the clothes are washed clean or not, all the set programs must be run completely before the washing can end. In this way, even if the lightly soiled clothes are washed clean, the washing machine has to wait until the washing machine has finished running the program to stop, and excessive washing will occur, resulting in heavy wear, water consumption, time consumption, and electricity consumption, resulting in waste of energy; dirty clothes It may be that after the set washing program is executed, the washing is not thorough enough, resulting in under-washing and the clothes are not washed clean.

In order to solve the above problems, most washing machines are equipped with turbidity sensors, and the structure and working circuit of the turbidity sensors are shown in Fig. 1 and Fig. 2 . The detection part 2-1 at the lower part of the turbidity sensor 2 includes a transmitting end 2-2 and a receiving end 2-3. The diode of the transmitting end 2-2 emits a certain amount of light, which is transmitted to the receiving end 2-3 through the washing liquid. After passing through the washing liquid with different degrees of pollution, the amount of light reaching the receiving end 2-3 is different, so that the sensor feedbacks different voltage values V. If the receiving end 2-3 receives more light, it indicates that the washing liquid has good light transmittance and less turbidity, and the voltage value V output by the sensor is high. On the contrary, if the light received by the receiving end 2-3 is less, it indicates that the light transmittance of the washing liquid is poor, the degree of pollution is relatively high, and the voltage value V output by the sensor is relatively low. The washing machine control system automatically adjusts the washing times according to the output voltage V of the sensor to prevent under-washing and over-washing, improve the washing effect, and reduce the waste of water and electricity resources.

The turbidity sensor can be installed in different parts of the washing machine. The common installation method is to install the turbidity sensor on the drain valve of the washing machine, as shown in Figure 3 and Figure 4. A support seat 1-3 connected with the water intake valve chamber 1-2 is provided at the lower part of the water inlet valve port 1-1 where the drain valve 1 is connected to the drain port of the outer tub of the washing machine, and the turbidity sensor 2 is inserted into the support seat 1. On -3, the detection part 2-1 of the lower part of the turbidity sensor 2 goes deep into the water inlet valve cavity 1-2. Since the detection part 2-1 of the turbidity sensor 2 goes deep into the valve cavity, when there is foam in the drain valve 1, especially when there is a lot of foam, it is easy to gather around the turbidity sensor 2 and directly contact the detection part 2-1, so that Part of the light emitted by the transmitter end 2-2 of the sensor will be reflected by the bubble wall, and the light reaching the receiver end 2-3 will be reduced, and the voltage value V fed back by the turbidity sensor will be low, and the control system will mistakenly judge that the washing liquid is dirty , to continue the washing operation. Therefore, there will still be excessive washing, causing the washing machine to wear and tear, and the problems of water consumption, time consumption, and electricity consumption cannot be effectively solved.

Contents of the invention

The utility model provides a washing machine equipped with a turbidity sensor. By installing the turbidity sensor on a bracket and then installing it on a drain valve, the problem that the detection accuracy of the turbidity sensor is affected by the foam surrounding is effectively solved.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions to achieve:

A washing machine equipped with a turbidity sensor, comprising a drain valve and a turbidity sensor, the drain valve is provided with a support seat communicating with the valve cavity, and the feature is that a support is provided on the support seat, and the turbidity sensor The degree sensor is mounted on the bracket.

According to the utility model, the bracket is tubular, and the turbidity sensor is installed in the cavity of the bracket.

According to the utility model, at least two claws are provided on the upper part of the bracket; an end cover is provided on the upper part of the turbidity sensor, and at least two clamping holes are arranged on the end cover, and the clamping claws and the clamping holes Lock each other tightly.

According to the utility model, at least one positioning rib is arranged in the middle of the bracket cavity, and the positioning rib clamps the lower part of the turbidity sensor.

Preferably, the positioning rib is an annular flange surrounding the inner wall of the bracket. In order to achieve sealing, a sealing ring is arranged between the lower part of the turbidity sensor and the positioning rib.

According to the utility model, in order to realize the installation of the bracket and the turbidity sensor, the outer wall of the bracket is provided with at least one flange, the turbidity sensor is provided with a cover, and the cover is provided with claws, and the clamp The claw engages with the flange.

Preferably, the flange is an annular flange surrounding the outer wall of the bracket.

According to the present invention, the bracket is fixed to the support base in one of adhesive bonding, buckle connection, threaded socket and hot-melt joint.

According to the present utility model, the bracket and the support base can also be made as an integral structure. Compared with prior art, advantage and positive effect of the present utility model are:

1. By installing a bracket on the support base, the turbidity sensor is installed on the bracket, which increases the length of the support base, prolongs the distance between the turbidity sensor and the valve chamber of the drain valve, and makes the detection part of the lower part of the turbidity sensor away from The valve chamber reduces the chance of foam surrounding the turbidity sensor, effectively avoids the direct contact between the sensor detection part and the foam, improves the detection accuracy of the sensor, and achieves the goals of saving water, electricity and time.

2. The bracket is tubular, with claws or flanges on its upper part, and an end cover on the upper part of the turbidity sensor, and a clamping hole or claws on the end cover, and the bracket and the turbidity sensor pass through the claws It is fastened with the clamping hole or the flange and the claw, which has the advantages of reliable connection and convenient disassembly and assembly.

Description of drawings

Fig. 1 is the structural representation of turbidity sensor;

Fig. 2 is the schematic diagram of the working circuit of the turbidity sensor;

Fig. 3 is the installation structure diagram of the turbidity sensor on the drain valve of the washing machine in the prior art;

Fig. 4 is a partial sectional view of Fig. 3;

Fig. 5 is an installation structure diagram of the turbidity sensor on the drain valve in the washing machine of the present invention;

Fig. 6 is a partial sectional view of Fig. 5;

FIG. 7 is a cross-sectional view of the bracket shown in FIG. 5 .

In the figure, 1. Drain valve; 1-1. Drain valve port; 1-2. Drain valve cavity; 1-3. Support seat; 2. Turbidity sensor; 2-1. Detection part; 2-2. Transmitter ; 2-3, receiving end; 2-4, end cover; 2-5, clamping hole; 3, bracket; 3-1, claw; 3-2, positioning rib;

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Please refer to Fig. 5, Fig. 6 and Fig. 7 together, the disclosed structure is an embodiment of the present invention. In the figure, the drain valve 1 has a drain valve port 1-1 connected to the drain port of the outer tub of the washing machine, and a drain valve cavity 1-2 is formed under the drain valve port 1-1, and a drain valve cavity 1-2 is formed in the drain valve cavity 1-2 A supporting seat 1-3 communicating with it is arranged on the top, and a bracket 3 is arranged on the supporting seat 1-3, and the turbidity sensor 2 is installed on the bracket 3. The bracket 3 is tubular, and two claws 3-1 are arranged on its upper part. The upper part of the turbidity sensor 2 is provided with an end cover 2-4, and two clamping holes 2-5 are provided on the end cover 2-4, and the clamping claw 3-1 and the clamping hole 2-5 can be clamped mutually tight. In the middle of the cavity of the support 3, two positioning ribs 3-2 are arranged. When the detection site 2-1 of the turbidity sensor 2 is inserted into the cavity of the support 3, the positioning ribs 3-2 are used to clamp the detection site 2-1. tight.

It can be understood that the claw 3-1 can also be set as a ring of flanges surrounding the outer wall of the bracket 3, and of course it can also be set as a plurality of intermittent flanges surrounding the outer wall of the bracket 3, and the multiple protrusions Edges are located on the same longitudinal section of the bracket 3 . Preferably, the flange is set as a ring of flanges surrounding the outer wall of the bracket 3 . Correspondingly, the position where the end cover 2-4 engages with the flange of the bracket 3 is provided with a claw, which is used to engage with the flange, thereby forming a buckle structure to fix the end cover 2 -4 the relative positional relationship with the bracket 3 .

It can be understood that the positioning rib 3-2 can also be set as an annular flange protruding from the inner cavity of the bracket 3, or can be set as a plurality of intermittent flanges surrounding the inner cavity, and the multiple The flanges are located on the same longitudinal section of the bracket 3 . Preferably, the positioning rib 3-2 is arranged as a ring-shaped flange protruding from the inner cavity of the bracket 3 .

When the above-mentioned structure is installed, the bracket 3 is first bonded and fixed on the support seat 1-3 with an adhesive, and then the turbidity sensor 2 is inserted into the cavity of the bracket 3, and the claw 3-1 of the bracket 3 is fastened on the On the card hole 2-5 of the end cap 2-4. The turbidity sensor 2 can be firmly installed on the support 3 by using the cooperation of the claw 3-1 and the clamping hole 2-5, and the positioning of the positioning rib 3-2, and then installed on the drain valve 1 through the support 3. At the same time, in order to achieve sealing, a sealing ring 4 is provided between the lower part of the turbidity sensor 2 and the positioning rib 3-2.

It can be understood that the bracket 3 can also be fixed on the support base 1-3 in other ways, such as using a buckle connection structure, threaded socket and hot-melt joint. When using the buckle structure, it needs to be used in combination with a sealing ring. Of course, the methods listed above are not exhaustive, as long as the functions realized by them are the same or similar to those of the present invention, they should all be covered by the protection scope of the present invention.

In addition, the bracket 3 and the support seat 1-3 can also be integrally formed.

It can be seen from the cross-sectional view in Fig. 6 that the bracket 3 is arranged in the extension direction of the support seat 1-3, which increases the length of the support seat and prolongs the distance between the detection part 1-3 of the turbidity sensor and the drain valve chamber 1-2. distance, so that the detection part of the lower part of the turbidity sensor is far away from the valve chamber of the drain valve, and the foam flowing through the drain valve 1 will not gather at the detection parts 1-3, effectively avoiding the direct contact between the sensor detection part and the foam, and improving the sensor's performance. High detection accuracy, to achieve the purpose of saving water, electricity and time.

Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples. Those of ordinary skill in the art may make changes, modifications, additions or replacements within the essential scope of the present utility model. It should also belong to the protection scope of the present utility model.

Claims (10)

1. A washing machine equipped with a turbidity sensor, comprising a drain valve and a turbidity sensor, the drain valve is provided with a support seat communicating with the valve cavity, and it is characterized in that a support is provided on the support seat, so that The turbidity sensor is installed on the bracket. 2. The washing machine equipped with a turbidity sensor according to claim 1, wherein the bracket is tubular, and the turbidity sensor is installed in the cavity of the bracket. 3. The washing machine equipped with a turbidity sensor according to claim 2, characterized in that at least two claws are arranged on the upper part of the bracket; an end cover is arranged on the upper part of the turbidity sensor, and a There are at least two clamping holes, and the clamping claw and the clamping holes are mutually clamped. 4. The washing machine equipped with a turbidity sensor according to claim 2, characterized in that at least one positioning rib is arranged in the middle of the bracket cavity, and the positioning rib clamps the lower part of the turbidity sensor. 5. The washing machine equipped with a turbidity sensor according to claim 4, characterized in that a sealing ring is provided between the lower part of the turbidity sensor and the positioning rib. 6. The washing machine equipped with a turbidity sensor according to claim 2, characterized in that at least one flange is provided on the outer wall of the bracket, a cover is provided on the turbidity sensor, and a cover is provided on the cover. The claw is engaged with the flange. 7. The washing machine equipped with a turbidity sensor according to claim 6, wherein the flange is an annular flange surrounding the outer wall of the bracket. 8. The washing machine equipped with a turbidity sensor according to claim 4, wherein the positioning rib is an annular flange surrounding the inner wall of the bracket. 9. The washing machine equipped with a turbidity sensor according to claim 1, characterized in that, the way of fixing the bracket to the support base is adhesive bonding, buckle connection, threaded connection and heat welding One of a kind. 10. The washing machine equipped with a turbidity sensor according to claim 1, characterized in that, the bracket and the support base are integrally formed.

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