CN113605055B - drum washing machine - Google Patents

Abstract

The invention provides a drum washing machine, which comprises a box body, a metal outer cylinder arranged in the box body, and an inner cylinder rotatably arranged in the metal outer cylinder; the metal outer cylinder is used for containing cleaning water, the top of the metal outer cylinder is provided with a water inlet, and the bottom of the metal outer cylinder is provided with a water pumping port; an electromagnetic heating device is arranged on the metal outer cylinder; the drum washing machine comprises a circulating waterway device communicated with the metal outer cylinder; the circulating waterway device comprises a circulating water pump, a water suction pipe connected with the circulating water pump and the water suction port, and a water outlet pipe connected with the circulating water pump and the water inlet; the electromagnetic heating device works, the metal outer cylinder heats, and the temperature of cleaning water in the metal outer cylinder rises; the circulating water pump works, the circulating water pump sends the cleaning water in the metal outer cylinder into the water suction pipe through the water suction port, and the cleaning water sequentially flows through the circulating water pump and the water outlet pipe and enters the metal outer cylinder through the water inlet; the invention effectively improves heating uniformity and heating speed, reduces energy consumption and improves heating efficiency.

Description

drum washing machine

Technical field

The invention belongs to the technical field of household washing machines, and in particular relates to a drum washing machine.

Background technique

With the implementation of the new European standards, the requirements for factors affecting energy efficiency such as water consumption, electricity consumption and procedures have become more stringent. The outer drum structure of traditional front-loading washing machines is made of PP + glass fiber, and the front and rear are spliced into a whole. Due to the demoulding slope, the inner and outer drums are A larger gap can ensure safety during high-speed dehydration. This results in a large amount of water between the inner and outer cylinders to reach the set water level. In addition, the traditional resistance heating tube has low efficiency and is installed inside the outer cylinder. After a period of use, scale will accumulate. The accumulation of lint, etc. further reduces the heating efficiency, making it difficult to achieve a substantial breakthrough in the energy efficiency of the entire machine. At present, water saving and energy saving have become a major trend in the development of rollers.

In view of this, the present invention is proposed.

Contents of the invention

In view of the above technical problems, the present invention proposes a drum washing machine.

In order to achieve the above objects, the technical solutions adopted by the present invention are:

Front-loading washing machine, including:

box;

A metal outer cylinder is provided in the box and is used to hold cleaning water; the top of the metal outer cylinder is provided with a water inlet and the bottom is provided with a water outlet;

The inner cylinder is rotatably located in the metal outer cylinder;

An electromagnetic heating device located on the metal outer cylinder;

A circulating water path device is connected with the metal outer cylinder; the circulating water path device includes:

Circulating pump;

A water pumping pipe connects the circulating water pump and the water pumping port;

A water outlet pipe connects the circulating water pump and the water inlet;

The electromagnetic heating device works, the metal outer cylinder generates heat, and the temperature of the cleaning water in the metal outer cylinder rises; the circulating water pump works, and the circulating water pump pumps the cleaning water in the metal outer cylinder through the Then, the cleaning water flows through the circulating water pump and the water outlet pipe in sequence, and enters the metal outer cylinder from the water inlet.

As an implementable manner, the water outlet pipe includes a first pipe section connected to the circulating water pump and a second pipe section connected to the water inlet;

The circulating water circuit device includes an electronically controlled three-way valve; one joint of the electronically controlled three-way valve is connected to the first pipe section, one is connected to the second pipe section, and the other is connected to a drainage pipe;

When circulating cleaning water, the electronically controlled three-way valve connects the first pipe section and the second pipe section; when draining water, the electronically controlled three-way valve connects the water pumping pipe and the drainage pipe.

As an implementable manner, the electronically controlled three-way valve is close to the rear end of the metal outer cylinder and is located above the metal outer cylinder.

As an implementable manner, the circulating water pump is located below the metal outer cylinder.

As an implementable manner, the electromagnetic heating device is provided on a side of the metal outer cylinder away from the inner cylinder.

As an implementable manner, the electromagnetic heating device is provided at the bottom of the metal outer cylinder.

As an implementable manner, a spray device is provided at one end of the water outlet pipe close to the water inlet.

As an implementable manner, one end of the second pipe section away from the electronically controlled three-way valve is branched into a plurality of branch pipes; a plurality of water inlets are provided on the top of the metal outer cylinder; each water inlet corresponds to the third water inlet. Multiple branch pipes of the two pipe sections are connected.

As an implementable manner, the metal outer cylinder includes an annular cylinder, a front flange provided at the front end of the cylinder, and a rear flange provided at the rear end of the cylinder; There is a cylinder bottom bracket that supports the cylinder and the rear flange.

As an implementable manner, the inner cylinder is a metal inner cylinder.

Compared with the existing technology, the advantages and positive effects of the present invention are:

The invention provides a drum washing machine, which includes a box body, a metal outer cylinder provided in the box body, and an inner cylinder rotatably provided in the metal outer cylinder; the metal outer cylinder is used to hold cleaning water. And the top of the metal outer cylinder is provided with a water inlet, and the bottom is provided with a water outlet; the metal outer cylinder is provided with an electromagnetic heating device; the drum washing machine includes a circulating water device connected with the metal outer cylinder; The circulating water path device includes a circulating water pump, a water pipe connecting the circulating water pump and the water inlet, and a water outlet pipe connecting the circulating water pump and the water inlet; the electromagnetic heating device works, and the metal outer cylinder generates heat , the temperature of the cleaning water in the metal outer cylinder rises; the circulating water pump works, and the circulating water pump sends the cleaning water in the metal outer cylinder into the water pumping pipe from the water pumping port, and then the cleaning water flows sequentially It flows through the circulating water pump and the water outlet pipe, and enters the metal outer cylinder from the water inlet; the present invention uses an electromagnetic heating device to heat the metal outer cylinder and simultaneously cleans the water circulation, effectively improving the heating uniformity and heating speed, reducing energy consumption and improve heating efficiency.

Description of the drawings

Figure 1 is a partial structural schematic diagram of a drum washing machine according to the present invention;

Figure 2 is a partial structural schematic diagram from another perspective of the drum washing machine of the present invention;

Figure 3 is a partial structural schematic diagram from another perspective of the drum washing machine of the present invention;

Figure 4 is a partial structural schematic diagram of the drum washing machine of the present invention from another perspective;

Figure 5 is a cross-sectional view of the drum washing machine of the present invention.

In the above picture: metal outer cylinder 1; inner cylinder 8; front flange 9; cylinder 10; rear flange 11; cylinder bottom bracket 12; electromagnetic heating device 2; circulating water pump 3; water pipe 4; outlet pipe 5; A pipe section 51; a second pipe section 52; an electronically controlled three-way valve 6; a drainage pipe 7.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the scope of protection claimed by the present invention is not limited to the scope described in the specific embodiments. . It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

It should be noted that descriptions involving “first”, “second”, etc. in the present invention are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. . Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

In addition, the technical solutions in various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist. , nor within the protection scope required by the present invention.

A drum washing machine, as shown in Figures 1 to 5, includes a box body with a storage space formed in the box; a metal outer cylinder 1 for holding washing water is provided in the storage space; a metal outer cylinder 1 is provided on the metal outer cylinder 1 The top is provided with a water inlet and the bottom is provided with a water outlet; the metal outer cylinder 1 is provided with a rotatable inner cylinder 8 . Among them, the metal outer cylinder 1 is provided with an electromagnetic heating device 2. The electromagnetic heating device 2 heats the metal outer cylinder 1. The metal outer cylinder 1 transfers heat to the cleaning water located in the metal outer cylinder 1 to heat the cleaning water. The drum washing machine is provided with a circulating water circuit device, and the circulating water circuit device is connected with the metal outer cylinder 1 . Specifically, the circulating water circuit device includes a circulating water pump 3, a water pumping pipe 4, and a water outlet pipe 5; the water pumping pipe 4 connects the circulating water pump 3 and the water outlet; the water outlet pipe 5 connects the circulating water pump 3 and the water inlet.

The electromagnetic heating device 2 works, and the current passes through the electromagnetic heating device 2 and generates a magnetic field. By changing the frequency of the current, changing magnetic induction lines are generated to stimulate the eddy current effect of the metal outer cylinder 1 to generate heat, thereby cleaning the metal outer cylinder 1 The water temperature gradually increases to achieve heating of the cleaning water.

When the circulating water pump 3 is working, under the action of the circulating water pump 3, the cleaning water in the metal outer cylinder 1 is sent into the water pumping pipe 4 from the water inlet, and then flows through the circulating water pump 3 and the water outlet pipe 5 in sequence, and enters the metal outer cylinder through the water inlet. 1 to form a circulation of the cleaning water and promote the mixing of the cleaning water, so as to quickly homogenize the temperature of the cleaning water and increase the heating speed.

The water outlet pipe 5 includes a first pipe section 51 connected to the circulating water pump 3 and a second pipe section 52 connected to the water inlet; the first pipe section 51 and the second pipe section 52 are connected through an electronically controlled three-way valve 6 . Specifically, one joint of the electronically controlled three-way valve 6 is connected to the first pipe section 51 , one is connected to the second pipe section 52 , and the other is connected to the drainage pipe 7 .

When circulating the cleaning water, the electronically controlled three-way valve 6 controls the connection between the first pipe section 51 and the second pipe section 52 and disconnects the first pipe section 51 from the drainage pipe 7 . When the circulating water pump 3 is working, the cleaning water in the metal outer cylinder 1 passes through the water pumping port, the first pipe section 51, the circulating water pump 3, the second pipe section 52 in sequence, and returns to the metal outer cylinder 1 through the water inlet, so that the cleaning water can be pumped out and The circulation of the metal outer cylinder 1 back into the metal outer cylinder 1 promotes the mixing of the cleaning water, thereby quickly uniformizing the temperature of the cleaning water and increasing the heating speed. In this embodiment, the water inlet is provided at the top of the metal outer cylinder 1. The cleaning water entering the metal outer cylinder 1 from the water inlet enters from the top of the metal outer cylinder 1, and is mixed with the cleaning water in the metal outer cylinder 1. Effectively promotes the temperature of the cleaning water to rise evenly and increases the heating speed. The water suction port is provided at the bottom of the metal outer cylinder 1, which helps the cleaning water in the metal outer cylinder 1 flow out, so that the cleaning water in the metal outer cylinder 1 can be fully circulated.

In this embodiment, a spray device is provided at one end of the water outlet pipe 5 near the water inlet. The water flowing out from the first pipe section 51 sprays the cleaning water into the metal outer cylinder 1 through the spray device. On the one hand, it can quickly wet the clothes, and on the other hand, it helps to evenly mix it with the cleaning water in the metal outer cylinder 1. Improve heating uniformity and improve temperature uniformization efficiency so that the cleaning water can quickly and evenly reach the set temperature. In this embodiment, one end of the second pipe section 52 away from the electronically controlled three-way valve branches into a plurality of branch pipes; a plurality of water inlets are provided on the top of the metal outer cylinder 1, which are connected to the plurality of branch pipes of the second pipe section 52, so as to Water is fed into the metal outer cylinder 1 from different positions on the top thereof to promote mixing of the cleaning water, thereby effectively promoting a uniform increase in the temperature of the cleaning water and increasing the heating speed.

When the drum washing machine is draining, the electronically controlled three-way valve 6 controls the connection between the first pipe section 51 and the drainage pipe 7, and the first pipe section 51 and the second section 52; the circulating water pump 3 works to pump the cleaning water in the metal outer cylinder 1 The cleaning water passes through the water pumping port, the first pipe section 51, the circulating water pump 3, and the drainage pipe 7 in sequence, and is discharged through the drainage pipe 7.

In this embodiment, the circulating water pump 3 is located below the metal outer cylinder 1 to ensure efficient extraction of the cleaning water in the metal outer cylinder 1 . The electronically controlled three-way valve 6 is disposed close to the rear end of the metal outer cylinder 1 and located above the metal outer cylinder 1 . That is, the connection end of the drainage pipe 7 and the electronically controlled three-way valve 6 is located above the rear end of the metal outer cylinder 1; during drainage, the circulating water pump 3 pumps the cleaning water to the upper part of the metal outer cylinder 1 through the first pipe section 51. , increasing the potential energy of the cleaning water; then the cleaning water flows out from the drainage pipe 7 under the action of gravity, effectively increasing the drainage speed and improving the drainage efficiency.

In addition, the electromagnetic heating device 2 is disposed on the side of the metal outer cylinder 1 away from the inner cylinder 8 so as to completely isolate the electromagnetic heating device 2 from the cleaning water and prevent the electromagnetic heating device 2 from being damaged by the cleaning water. At the same time, using the metal outer cylinder 1 as a heating element effectively increases the heating contact area and improves heating efficiency. In addition, the electromagnetic heating device 2 has high heating efficiency and low energy consumption, which can reduce the overall energy consumption of the drum washing machine. In this embodiment, the electromagnetic heating device 2 is disposed at the bottom of the metal outer cylinder 1 and can preferentially heat the bottom of the metal outer cylinder 1 so as to preferentially heat a large amount of cleaning water therein. The electromagnetic heating device 2 cooperates with the circulating water circuit device to effectively increase the heating speed and reduce energy consumption.

In this embodiment, the metal outer cylinder 1 includes an annular cylinder 10 , a front flange 9 provided at the front end of the cylinder 10 , and a rear flange 11 provided at the rear end of the cylinder 10 . The cylinder 10 is provided with a cylinder bottom bracket 12, and the cylinder bottom bracket 12 supports the cylinder 10 and the rear flange 11. In addition, the inner cylinder 8 of this embodiment is a metal inner cylinder. Specifically, both the metal outer cylinder 1 and the metal inner cylinder 8 are made of stainless steel. The above inner cylinder 8 and the outer cylinder are both made of metal, and there is no draft angle (the existing outer cylinder is made of PP+glass fiber), and the gap between the inner cylinder 8 and the outer cylinder is consistent. Compared with the traditional arrangement of the inner cylinder 8 and the outer cylinder with a demolding slope, when the water level is the same, the arrangement of the metal inner cylinder 8 and the outer cylinder in this embodiment effectively reduces the amount of water inflow and saves water.

As mentioned above, the plane passing through the rotation axis of the inner cylinder 8 and perpendicular to the bottom of the box is designated as the reference plane M. A fixing seat is provided in the area near the bottom of the metal outer cylinder 1; specifically, the fixing seat includes a matching plate that fits the metal outer cylinder 1; wherein, the electromagnetic heating device 2 is fixed on the matching plate. In addition, a connecting plate is provided on the edge of the matching plate parallel to the reference plane M; a mounting seat for connecting the shock absorber is provided on the connecting plate; in this embodiment, a fixed cavity is formed on the mounting seat, and the mounting seat and the connecting plate Connected by riveting. Among them, connecting plates are provided on both edges of the matching plate parallel to the reference plane M.

One end of the above shock absorber is fixed on the bottom of the box, and the other end is fixedly connected to the connecting plate on the fixed base. As an implementable manner, along the direction from the bottom of the metal outer cylinder 1 to the top thereof, the shock absorber is inclined in a direction close to the reference plane M. The angle between the shock absorber and the plane at the bottom of the box is recorded as α, α∈[10°, 90°). In this embodiment, α=70°. The above inclined setting of the shock absorber can, on the one hand, increase the stability of the supporting metal outer cylinder 1, and on the other hand, it can effectively transmit the force on the metal outer cylinder 1 to the bottom of the box, thereby transmitting the force generated by the vibration to the earth, effectively reducing the vibration. It is transmitted to the box to ensure the stability of the box and reduce the vibration of the overall washing machine.

The shock absorber includes a first shock absorber part and a second shock absorber part; one end of the first shock absorber part is connected to the fixed base, and the other end is connected to the second shock absorber part; the second shock absorber part is far away from the first shock absorber part One end of the top is connected to the bottom of the box.

Specifically, the first shock-absorbing part includes a shock-absorbing steel rod and a rubber fixing part provided at one end of the shock-absorbing steel rod; wherein the rubber fixing part is installed on the fixed base. In this embodiment, the rubber fixing part is pressed into the fixing cavity of the mounting base to complete the connection between the shock absorber and the mounting base.

The second shock-absorbing part includes a shock-absorbing sleeve matched with the shock-absorbing steel rod. The shock-absorbing sleeve is provided with a damping structure, which can realize damping and shock absorption when the shock-absorbing steel rod moves back and forth along the shock-absorbing sleeve; the shock-absorbing sleeve is away from the second shock-absorbing sleeve. One end of the shock-absorbing part is provided with a fixing bolt for fixed connection with the bottom of the box.

A plurality of shock absorbers are provided at the bottom of the metal outer cylinder 1, and the multiple shock absorbers jointly support the metal outer cylinder 1. In this embodiment, two shock absorbers are provided on each side of the reference plane M, which are fixedly connected to the opposite ends of the connecting plate on the fixed base on the same side. Specifically, they are recorded as the first shock absorber, the second shock absorber, the third shock absorber, and the fourth shock absorber; wherein, the first shock absorber and the second shock absorber are located on the same side of the reference plane M, and the first shock absorber and the second shock absorber are located on the same side of the reference plane M. The third shock absorber and the fourth shock absorber are located on the same side of the reference plane M. The first shock absorber and the third shock absorber are located at one end close to the barrel mouth, and the second shock absorber and the fourth shock absorber are located close to One end of the barrel mouth. The above effectively ensures the stability of the shock absorber's support to the outer cylinder.

In addition, the metal outer cylinder 1 is provided with an upper counterweight in the area near the top of the box, and the metal outer cylinder 1 is provided with a lower counterweight on the side near the bottom of the box to balance the mass distribution and increase the stability of the drum washing machine during operation.

The drum washing machine of the above embodiment includes a box body, a metal outer cylinder located inside the box body, and an inner cylinder rotatably located inside the metal outer cylinder; the metal outer cylinder is used to hold washing water, and the metal outer cylinder is The top of the washing machine is equipped with a water inlet and the bottom is provided with a water outlet; the metal outer cylinder is equipped with an electromagnetic heating device; the drum washing machine includes a circulating water device connected to the metal outer cylinder; the circulating water device includes a circulating water pump, connecting the circulating water pump and the water outlet The water pumping pipe and the water outlet pipe connecting the circulating water pump and the water inlet; the electromagnetic heating device works, the metal outer cylinder heats up, and the temperature of the cleaning water in the metal outer cylinder rises; the circulating water pump works, and the circulating water pump pumps the cleaning water in the metal outer cylinder. The cleaning water flows through the circulating water pump and the water outlet pipe in sequence, and enters the metal outer cylinder from the water inlet; the metal outer cylinder is heated by the electromagnetic heating device and the cleaning water is circulated at the same time, effectively improving the heating uniformity and heating speed, reducing Energy consumption is reduced and heating efficiency is improved; in addition, in this embodiment, the outer cylinder and the inner cylinder are made of metal to maintain the water level while reducing the amount of water inflow. As mentioned above, by arranging the electromagnetic heating device 2, the circulating water device, the metal outer cylinder 1 and the metal inner cylinder 8, the whole machine can save electricity, water and time.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any skilled person familiar with the art may make changes or modifications to equivalent changes using the technical contents disclosed above. The embodiments may be applied to other fields, but any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims (8)

1. Drum washing machine, characterized in that it comprises:

a case;

a metal outer cylinder provided in the case for containing washing water; the top of the metal outer cylinder is provided with a water inlet, and the bottom of the metal outer cylinder is provided with a water pumping port;

an inner cylinder rotatably arranged in the metal outer cylinder; the inner cylinder is a metal inner cylinder; the gap between the inner cylinder and the metal outer cylinder is consistent;

an electromagnetic heating device arranged on the metal outer cylinder;

the circulating waterway device is communicated with the metal outer cylinder; the circulation waterway device includes:

a circulating water pump;

a water pumping pipe connected with the circulating water pump and the water pumping port;

the water outlet pipe is connected with the circulating water pump and the water inlet;

the electromagnetic heating device works, the metal outer cylinder heats, and the temperature of cleaning water in the metal outer cylinder rises; the circulating water pump works, the circulating water pump sends the cleaning water in the metal outer cylinder into the water suction pipe through the water suction port, and then the cleaning water sequentially flows through the circulating water pump and the water outlet pipe and enters the metal outer cylinder through the water inlet;

the electromagnetic heating device is arranged at the bottom of the metal outer cylinder;

the electromagnetic heating device is characterized in that a fixed seat is arranged in the area, close to the bottom, of the metal outer cylinder, the fixed seat comprises a matching plate which is attached to the metal outer cylinder, and the electromagnetic heating device is fixed on the matching plate;

a plane passing through the rotating shaft of the inner cylinder and perpendicular to the bottom of the box is recorded as a reference plane M;

the two edges of the matching plate parallel to the reference plane M are provided with connecting plates; be equipped with the mount pad that is used for connecting the bumper shock absorber on the connecting plate, bumper shock absorber one end is fixed in on the bottom of the case, the other end of bumper shock absorber and the connecting plate fixed connection on the fixing base, be formed with fixed chamber on the mount pad, the bumper shock absorber includes rubber fixed part, will rubber fixed part is impressed in the fixed intracavity of mount pad is in order to accomplish the bumper shock absorber with the connection of fixing base.

2. The drum washing machine as claimed in claim 1, wherein: the water outlet pipe comprises a first pipe section connected with the circulating water pump and a second pipe section connected with the water inlet;

the circulating waterway device comprises an electric control three-way valve; one joint of the electric control three-way valve is communicated with the first pipe section, one joint of the electric control three-way valve is communicated with the second pipe section, and the other joint of the electric control three-way valve is connected with a drain pipe;

when the cleaning water is circulated, the electric control three-way valve is communicated with the first pipe section and the second pipe section; when draining, the electric control three-way valve is communicated with the water suction pipe and the drain pipe.

3. The drum washing machine as claimed in claim 2, wherein: the electric control three-way valve is close to the rear end of the metal outer cylinder and is positioned above the metal outer cylinder.

4. A drum washing machine as claimed in claim 3, wherein: the circulating water pump is positioned below the metal outer cylinder.

5. The drum washing machine as claimed in claim 1, wherein: the electromagnetic heating device is arranged on one side of the metal outer cylinder away from the inner cylinder.

6. The drum washing machine as claimed in any one of claims 1 to 5, wherein: and one end of the water outlet pipe, which is close to the water inlet, is provided with a spraying device.

7. The drum washing machine as claimed in any one of claims 2 to 4, wherein: one end of the second pipe section, which is far away from the electric control three-way valve, is branched into a plurality of branch pipes; the top of the metal outer cylinder is provided with a plurality of water inlets; each water inlet is correspondingly communicated with a plurality of branch pipes of the second pipe section.

8. The drum washing machine as claimed in any one of claims 1 to 5, wherein: the metal outer cylinder comprises an annular cylinder body, a front flange arranged at the front end part of the cylinder body and a rear flange arranged at the rear end part of the cylinder body; a barrel bottom bracket is arranged in the barrel body and supports the barrel body and the rear flange.