CN1172874A - Washing machine - Google Patents

Abstract

A washing machine, in which a washing wave plate is freely rotatably arranged at the bottom of a washing tank, and a circulating water channel for supplying water from a pump chamber formed on the inner side of the washing wave plate to the upper side wall of the washing tank is formed by a guide wall, and the guiding wall is located in the washing machine. A substantially L-shaped portion is extended from the upper end of the rear wall to form a spray outlet between the upper end of the front wall, so that the upper end of the front wall forms a substantially arc shape protruding upward, and the washing water is sprayed from the upper side of the washing tank to the clothes. Even when the water level is low and the amount of sprayed water is small, the washing water can be evenly sprayed on the clothes, and the washing unevenness can be reduced and the washing performance can be improved.

Description

washing machine

The present invention relates to a washing machine in which washing water is circulated through a circulating water channel provided in a washing tank to promote the dissolution of detergent, and at the same time, washing water is sprayed from the upper part of the washing tank to clothes for washing.

Conventionally, the structure of such a washing machine is shown in FIG. 8 . This structure will be described below.

As shown in the figure, a washing wave plate 2 is rotatably arranged on the bottom surface of the washing tank 1, and a mounting flange 3 is attached to the back of the bottom surface. On the upper part of the washing tank 1, a fluid balancer 4 in which liquid is enclosed is fixed. The sink 5 accommodates the washing tank 1 , and a base plate 6 is attached to the outer bottom, and a motor 8 for driving the washing wave plate 2 is arranged on the base plate 6 via a drive mechanism 7 . In addition, the water tank 5 is anti-vibration supported by the upper gusset of the outer frame 9 through the suspension rod 10 .

It is constituted such that on the inner surface of the washing tank 1, a circulating water channel 12 opened upwards and surrounded by the guide wall portion 11 is arranged, and by the rotation of the washing wave plate 2, the washing water in the washing wave plate 2 flows from the inside of the washing wave plate 2. The pump chamber 14 formed on the outer periphery of the inner vane 13 of the washing wave plate 2 sprays into the washing tank 1 through the circulating water channel 12 from the ejection port 15 provided at the upper part of the circulating water channel 12 .

However, in this conventional washing machine, the flow shape of the washing water sprayed from the upper spray port 15 of the circulating water channel 12 is greatly affected by the disturbance of the clothes in the washing tank 1 according to the type and amount of the clothes. Due to the influence of the size, the positional relationship between the spray port 15 and the water surface, and the shape of the spray port 15, the washing water cannot be evenly sprayed on the clothes in the washing tank 1 due to the constant unevenness, and the washing water containing the detergent may , foam, etc. are scattered to the outside of the washing tub 1 to increase the unevenness of washing.

The present invention solves the above-mentioned problems, and its object is to make the washing water sprayed from the spray port uniform even when the water level is set low and the amount of washing water sprayed from the upper part of the circulating water channel is small. Spray on clothes to reduce uneven washing and improve cleaning performance.

In order to achieve the above-mentioned purpose, the present invention is equipped with a washing wave plate rotatably at the bottom of the washing tank, and utilizes the guide wall to form a circulating water channel that supplies water from the pump chamber formed on the inner side of the washing wave plate to the side wall of the washing tank. The guide wall portion extends a substantially L-shaped portion on the upper end side of the rear wall to form a discharge port between the upper end portion of the front wall, so that the upper end portion of the front wall is formed into a substantially arc shape protruding upward.

As a result, even when the water level is set low and the amount of washing water sprayed from above the circulating water path is small, the washing water from the spray port can be evenly sprayed on the clothes, and uneven washing can be reduced. and improve cleaning performance.

The invention described in claim 1 of the present invention is characterized in that it has a washing tank, a washing wave plate rotatably arranged on the bottom of the washing tank, and a washing wave plate formed from the inner side of the washing wave plate. The guide wall part of the circulating water channel that supplies water from the pump chamber to the upper side wall of the washing tub, and the guide wall part extends a substantially L-shaped part on the upper end side of the rear wall to form a discharge port between the upper end part of the front wall. The upper end of the front wall is formed into a substantially arc shape protruding upward, thereby, since the substantially L-shaped portion and the upper end of the front wall are narrowed at the central portion of the discharge port, approximately L-shaped portions are formed at both ends. The glyph portion and the upper end of the front wall widen, and the water sprayed from the circulating waterway can make most of the main flow spread from the center of the spray outlet to both ends, even if the water level of the washing water in the washing tank is relatively low. Low, when the amount of sprayed water is small, the washing water can be sprayed evenly in a wide range, which can reduce uneven washing and improve cleaning performance.

The invention according to claim 2 is the invention according to the above-mentioned claim 1, characterized in that the substantially L-shaped portion is inclined upward relative to the horizontal direction, and the discharge port is formed between the upper end portion of the substantially arc-shaped front wall, Even if the water level of the washing water in the washing tank is low and the amount of sprayed water is small, the washing water sprayed from the spray port can reach the vicinity of the center of the washing tank, and since the upper end of the front wall is formed to protrude upward The roughly arc-shaped, so the washing water can be evenly sprayed in a wide range. In addition, by restricting the upward inclination of the substantially L-shaped portion, the ejection ports are present in pairs on the substantially diagonal line of the washing tank, and when the amount of water to be ejected is large, the amount of water ejected from the plurality of ejection ports can be suppressed. The washing water collides with each other, causing detergent and foam to scatter.

The invention according to claim 3 is the invention according to claim 1 or 2 above, and is characterized in that the substantially L-shaped portion guides the upper end of the front wall of the guide wall portion from above in both radial and radial directions. Covering, and at the same time make the shape of the terminal expansion toward the center of the washing tank, because the washing water rises in the circulating water channel, and is sprayed in a roughly fan-like manner along the lower part of the upper roughly L-shaped part, regardless of many clothes that are washed in large quantities When the clothes are turned over at different times, washing water can be sprayed from the inner peripheral end of the washing tank over a wide range to the uneven clothes in the washing tank when the washing wave plate is reversed each time, and it can prevent the washing water from being sprayed due to spraying. The washing water out produces uneven washing on the part where the clothes are spilled and the part that is not sprayed.

A brief description of the attached drawings:

Fig. 1 is a sectional view of a washing machine according to a first embodiment of the present invention.

Fig. 2 is an enlarged sectional view of main parts of the same washing machine.

Fig. 3 is a sectional view of main parts of a washing machine according to a second embodiment of the present invention.

Fig. 4 is a characteristic diagram of the inclination angle of the substantially L-shaped portion of the above washing machine and the reaching distance of the sprayed washing water.

5 is a characteristic diagram of the inclination angle of the substantially L-shaped portion of the same washing machine and the amount of splashing of washing water to the outside of the washing tub.

Fig. 6 is a sectional view of main parts of a washing machine according to a third embodiment of the present invention.

Fig. 7 is a sectional view of main parts of the same washing machine.

Fig. 8 is a sectional view of a conventional washing machine.

Embodiments of the present invention will be described below with reference to the drawings. In addition, the same reference numerals are used for the same parts as those in the conventional example, and the description thereof will be omitted.

Example 1:

As shown in FIGS. 1 and 2 , the circulating water channel 16 is enclosed in the guide wall portion 17 and formed from the pump chamber 14 formed by the outer periphery of the inner vane 13 of the washing wave plate 2 to the lower portion of the fluid balancer 4 . The guide wall portion 17 extends a substantially L-shaped portion 17b on the upper end side of the rear wall to form a discharge port 18 between the upper end portion 17a of the front wall, so that the upper end portion 17a of the front wall is formed into a substantially arc shape protruding upward. At this time, the distance between the front wall upper end 17a and the substantially L-shaped portion 17b at the ejection port 18 is: S=4-10mm at the center, T=6-12mm at both ends, T-S>2.

Now explain the action in the above structure. Put the clothes and detergent into the washing tank 1, and after the water is supplied to the specified water level, it is synchronized with the rotation of the washing wave plate 2, and the washing water in the washing wave plate 2 is washed every time it is reversed. The water is sprayed into the washing tub 1 from the pump chamber 14 formed on the outer periphery of the inner vane 13 through the circulating water channel 16 and from the discharge port 18 between the front wall upper end 17 a and the substantially L-shaped portion 17 b of the guide wall 17 .

Here, since the distance between the upper end 17a of the front wall of the discharge port 18 and the substantially L-shaped portion 17b gradually increases from the center to both ends (S<T), the water level in the washing tank 1 is low and the circulation The top of the waterway 16 sucks up and sprays the washing water with less amount of water, and when the spray pressure is low, the main flow positioned at the center of the circulating waterway 16 reaches the upper end 17a of the front wall, and flows from the central part of the ejection port 18 to both sides. The directions of the ends are dispersed. Therefore, the flow shape of the washing water sprayed from the spray port 18 becomes broad, ensuring a substantially fan-shaped shape, and uniform washing water can be sprayed over a wide range of clothes, thereby reducing uneven washing and improving cleaning performance.

Example 2:

As shown in FIG. 3 , the circulating water channels 19 are arranged on substantially diagonal lines of the washing tub 1 , and each circulating water channel 19 is surrounded by the guide wall portion 20 . The guide wall portion 20 extends a substantially L-shaped portion 20b on the upper end side of the rear wall to form a discharge port 21 between the upper end portion 20a of the front wall. The substantially L-shaped portion 20b has an upward angle W of 5-15 degrees relative to the horizontal direction. The front wall upper end portion 20a is formed in a substantially arc shape protruding upward. Other structures are the same as the above-mentioned embodiment 1.

Now explain the actions in the above structure. Put the clothes and detergent into the washing tank 1, and after the water is supplied to the specified water level, it is synchronized with the rotation of the washing wave plate 2, and the washing water in the washing wave plate 2 is washed every time it is reversed. The water is sprayed from the pump chamber 14 formed on the outer periphery of the inner vane 13 through the circulating water channel 19 from the discharge port 21 between the front wall upper end 20a and the substantially L-shaped portion 20b of the guide wall 20 into the washing tub.

Also, when the water level in the washing tub 1 is low, the amount of washing water that is sucked up and sprayed from above the circulating water channel 19 is small, the spray pressure is also low, and the reaching distance D of the washing water is shortened. Here, as shown in FIG. 4 , the larger the upward angle W of the substantially L-shaped portion 20 b of the guide wall portion 20 relative to the horizontal direction, the longer the reaching distance D of the washing water sprayed from the spray port 21 .

In this embodiment, since the substantially L-shaped portion 20b has an upward angle W of 5 degrees or more relative to the horizontal direction, the washing water sprayed from the spray port 21 can reach the vicinity of the center d of the washing tub 1 . Moreover, since the circulating water channel 19 is arranged on the substantially diagonal line of the washing tub 1, and the upper end portion 20a of the front wall is formed into a substantially arc shape protruding upward, it is possible to cover a wide area on the entire surface of the washing tub 1. Spray wash water evenly.

Then, when the water level in the washing tub 1 is the high water level P1 and there are few clothes, the washing water sucked up and sprayed above the circulating water channel 19 has a large amount of water and a high spray pressure, so it is easy to become Discharge in a straight line in the horizontal direction. Here, if the upward angle W of the substantially L-shaped portion 20b of the guide wall portion 20 relative to the horizontal direction is increased, since the reach distance D of the washing water ejected from the discharge port 21 becomes longer, the substantially diagonal line of the washing tub 1 The washing water sprayed from the spray port 21 on the top collides with each other at a position quite above the water surface, and as shown in FIG.

In this embodiment, since the upward angle W of the approximately L-shaped portion 20b is 15 degrees or less relative to the horizontal direction, the sprayed washing water forms arch-shaped free surfaces 22 respectively, and collides near the water surface or collides with each other before colliding with each other. Falling directly into the water surface, the splashing amount of the washing water to the outside of the washing tank 1 is f as shown in Figure 5 and can suppress the splashing of detergent and foam.

Example 3:

As shown in FIGS. 6 and 7 , the circulating water channel 23 is surrounded by a guide wall portion 24 , and the guide wall portion 24 extends a substantially L-shaped portion 24 b on the upper end side of the rear wall and is formed between the upper end portion 24 a of the front wall. Ejection port 25. The substantially L-shaped portion 24b covers the front wall upper end portion 24a from above in the radial and radial directions, and has an expanded shape at the end toward the center of the washing tub 1, and the edge portion 24c is chamfered.

Moreover, rib 24d is provided on the upper surface of substantially L-shaped part 24b, and is fitted with the lower part of the fluid balancer 4. As shown in FIG. Here, assuming that the position difference between the top end of the bottom surface of the substantially L-shaped portion 24b and the bottom surface of the balancer 4 is Y, the substantially L-shaped portion 24b is formed at a position lower than the bottom surface of the fluid balancer 4 when Y≧0. Other structures are the same as the above-mentioned embodiment 1.

Now explain the action in the above structure. Put the clothes and detergent into the washing tank 1, supply water to the specified water level, synchronize with the rotation of the washing wave plate 2, and wash the inside of the washing wave plate 2 every time it is reversed. Water is sprayed into the washing tub 1 from the pump chamber 14 formed on the outer periphery of the inner vane 13 through the circulating water channel 23 and from the discharge port 25 between the front wall upper end 24a and the substantially L-shaped portion 24b of the guide wall portion 24 .

At this time, the washing water passes through the upper end 24a of the front wall of the guide wall portion 24 from the circulating water channel 23, and immediately collides with the underside of the approximately L-shaped portion 24b, and at the same time, due to the discharge pressure and the adhesion of the washing water, it is still absorbed by the approximately L-shaped portion. 24b is guided, and is not interfered by the lower surface of the fluid balancer 4, and is sprayed out in a generally fan-shaped flowing water shape 26 whose end is expanded.

However, in the case of washing a large number of clothes, even if the turbulence inside the washing tank is suppressed due to the large number, the wide washing water can be sprayed from the peripheral end in the washing tank 1 to the whole area at a high position. The entire surface of the washing tank 1 can promote the dissolution of the detergent and improve the cleaning performance, and at the same time, it can prevent uneven washing caused by the sprayed washing water on the parts where the clothes are sprayed and the parts that are not sprayed. Moreover, it promotes the clothes being submerged in water, and also prevents the clothes from flying out of the washing tank 1 .

Also, in the present embodiment, the case where there is only one circulating water channel 23 has been described, however, if a plurality of circulating water channels 23 are provided in the washing tank 1, the effect can be further increased of course.

According to the invention described in claim 1 of the present invention, there is a washing tank, a washing wave plate rotatably arranged at the bottom of the washing tank, and a pump chamber formed on the back side of the washing wave plate to the washing tank. The guide wall portion of the circulating water channel for water supply above the side wall, since the aforementioned guide wall portion extends a substantially L-shaped portion on the upper end side of the rear wall to form a spray port between the upper end of the front wall, the spray port above the circulating water channel The sprayed water can disperse most of the main flow from the center of the spray outlet to both ends. Even if the sprayed water is small, the washing water can be sprayed evenly in a wide and wide range, which can reduce uneven washing and improve washing efficiency. Clean performance.

Moreover, if the invention according to claim 2 is adopted, since the substantially L-shaped portion is inclined upward relative to the horizontal direction, the spray port is formed between the upper end of the substantially arc-shaped front wall, even if the washing water in the washing tank When the water level is low and the amount of sprayed water is small, the washing water sprayed from the spray port can reach the vicinity of the center of the sink, and since the upper end of the front wall is formed in a substantially arc shape protruding upward, it can Sprays wash water evenly over a wide, wide area. In addition, by restricting the upward inclination of the substantially L-shaped portion, the nozzles are formed in pairs on substantially diagonal lines, and when the amount of water to be ejected is large, the amount of washing water ejected from the plurality of nozzles can be suppressed. Scattering of detergent and foam due to mutual collision.

In addition, if the invention according to claim 3 is adopted, since the substantially L-shaped portion covers the upper end portion of the front wall of the guide wall portion from above in two directions of the radial direction and the radial direction, it is formed toward the center of the washing tank at the same time. Due to the extended shape of the end, the wash water can be sprayed over a wide range from the inner peripheral end of the washing tank every time the washing wave plate is reversed, regardless of the degree of shaking of the clothes when washing a large number of clothes. On the uneven clothes in the washing tub, it is possible to prevent washing unevenness caused by sprayed washing water on the parts where the clothes are sprayed and the parts that are not sprayed.

Claims (3)

1. A washing machine, characterized in that it has a washing tank, a washing wave plate rotatably arranged at the bottom of the washing tank, and a pump chamber formed on the back side of the washing wave plate to the side of the washing tank. The guide wall part of the circulating water channel for water supply above the wall, the guide wall part is extended with a substantially L-shaped part on the upper end side of the rear wall to form a spray port between the upper end part of the front wall, so that the upper end part of the front wall forms an upward direction. Roughly arc-shaped. 2. The washing machine according to claim 1, wherein the substantially L-shaped portion is inclined upward relative to the horizontal direction, and the discharge port is formed between the substantially arc-shaped upper end portion of the front wall. 3. The washing machine according to claim 1 or 2, wherein the substantially L-shaped portion is formed to cover the upper end portion of the front wall of the guide wall portion from above in both radial and radial directions, and A shape that expands toward the center of the sink.

Images