Roller assembly and washing machine

Abstract

The utility model provides a roller assembly and a washing machine. The roller assembly comprises an inner cylinder, an outer cylinder and an electromagnetic coil, the inner cylinder is arranged in the outer cylinder and is coaxial with the outer cylinder, the electromagnetic coil surrounds the outer side of the inner cylinder and is coaxial with the inner cylinder, and the electromagnetic coil is used for heating water in the inner cylinder. The electromagnetic coil surrounds the outer side of the inner cylinder and is coaxial with the inner cylinder, so that when the electromagnetic coil is powered on, high-frequency and high-voltage current which changes at a high speed flows through the electromagnetic coil to generate an alternating magnetic field which changes at a high speed, and when the inner cylinder rotates, alternating magnetic lines are cut to generate alternating current (namely eddy current); water molecules in the inner barrel move irregularly at a high speed through vortex, the water molecules collide and rub with one another to generate heat energy, so that washing water is heated, the heating efficiency of the washing water is improved through the electromagnetic heating mode, and the problem that the heating efficiency of the washing water is low due to the fact that a heating pipe heats in a heat conduction mode in the prior art is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of clothing processing equipment, and in particular, relates to a drum assembly and a washing machine. Background Art

[0002] Washing machines are a type of laundry appliance widely used in people's daily lives. In order to improve the cleanliness of clothes washed by washing machines and enhance users' washing experience, more and more washing machines have heating washing functions.

[0003] Traditional washing machines achieve their heating function by heating the washing water through a heating tube resistor. However, this heat conduction heating method has low heating efficiency and a long heating time, which causes the washing program of the washing machine to run for a long time and requires waiting, affecting the user experience. Utility Model Content

[0004] The embodiments of the present application provide a drum assembly and a washing machine to solve the problem of low washing water heating efficiency in existing washing machines.

[0005] In a first aspect, an embodiment of the present application provides a drum assembly, which includes an inner cylinder, an outer cylinder and an electromagnetic coil, wherein the inner cylinder is arranged in the outer cylinder and is coaxially arranged with the outer cylinder, the electromagnetic coil surrounds the outer side of the inner cylinder and is coaxially arranged with the inner cylinder, and the electromagnetic coil is used to heat water in the inner cylinder.

[0006] Optionally, the electromagnetic coil is disposed between the inner cylinder and the outer cylinder, and the electromagnetic coil is detachably connected to the inner wall of the outer cylinder.

[0007] Optionally, the electromagnetic coil is provided with a buckle made of non-metallic material, the inner wall of the outer tube is provided with a buckle hole, and the buckle is snap-fitted with the buckle hole.

[0008] Optionally, there are multiple buckles and multiple holes, multiple buckles are arranged at intervals along the circumference of the electromagnetic coil, multiple holes are arranged at intervals along the circumference of the outer tube, and multiple buckles are snap-fitted with multiple holes in a one-to-one correspondence.

[0009] Optionally, a mounting frame made of non-metallic material is provided on the inner side wall of the outer cylinder, and the electromagnetic coil is fixed on the mounting frame.

[0010] Optionally, the mounting bracket includes a fixing portion, and an assembly portion matching the fixing portion is provided on the inner side wall of the outer tube, and the fixing portion and the assembly portion are fixedly connected via a connecting piece.

[0011] Optionally, a mounting groove is provided on the inner side wall of the outer cylinder, and the mounting frame is installed in the mounting groove.

[0012] Optionally, the drum assembly further comprises a temperature detection device, wherein the temperature detection device is disposed on the inner wall of the outer drum, and the temperature detection device is used to detect the water temperature in the inner drum.

[0013] Optionally, the temperature detection device includes a plurality of temperature sensors, and the plurality of temperature sensors are arranged on the inner wall of the outer cylinder and spaced apart along the circumference of the outer cylinder.

[0014] In a second aspect, an embodiment of the present application further provides a washing machine, comprising a casing and the above-mentioned drum assembly, wherein the drum assembly is disposed in the casing.

[0015] The drum assembly and washing machine provided in the embodiments of the present application are achieved by surrounding the electromagnetic coil around the outside of the inner drum and arranging it coaxially with the inner drum. When the electromagnetic coil is energized, a high-frequency, high-voltage current that changes rapidly flows through the electromagnetic coil to generate a high-speed changing alternating magnetic field. When the inner drum rotates, it cuts the alternating magnetic lines of force to generate alternating currents (i.e., eddy currents). The eddy currents cause the water molecules in the inner drum to move irregularly at high speed. The water molecules collide and rub against each other to generate heat energy, thereby achieving heating of the washing water. This electromagnetic heating method improves the heating efficiency of the washing water and solves the problem of low heating efficiency of the washing water caused by heating the heating tube in the traditional technology by heat conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative work. In the following description, the same figure numbers represent the same parts.

[0017] Figure 1 A schematic diagram of the structure of the roller assembly provided in an embodiment of the present application.

[0018] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the drum assembly shown.

[0019] Figure 3 for Figure 1 A schematic structural diagram of the drum assembly from another perspective is shown.

[0020] Figure 4 for Figure 3 The cross-sectional schematic diagram of the roller assembly along the AA direction is shown.

[0021] Figure 5 A schematic diagram of the structure of a washing machine provided in an embodiment of the present application.

[0022] Figure 6 for Figure 5 A structural schematic diagram of the washing machine from another perspective is shown.

[0023] Figure 7 for Figure 6 The schematic cross-sectional view of the washing machine shown is taken along direction BB.

[0024] Description of Figure Numbers:

[0025] 110, inner cylinder; 120, outer cylinder; 130, electromagnetic coil; 200, housing. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In this application, the word “exemplary” is used to mean “serving as an example, instance, or illustration.” Any embodiment described in this application as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0029] The present application embodiment provides a roller assembly, such as Figure 1 to Figure 4As shown, the drum assembly includes an inner cylinder 110, an outer cylinder 120 and an electromagnetic coil 130. The inner cylinder 110 is disposed inside the outer cylinder 120 and is coaxially disposed with the outer cylinder 120. The electromagnetic coil 130 surrounds the outer side of the inner cylinder 110 and is coaxially disposed with the inner cylinder 110. The electromagnetic coil 130 is used to heat the water in the inner cylinder 110. The number of turns of the electromagnetic coil 130 can be adjusted according to the different capacities of the inner cylinder 110.

[0030] The drum assembly provided in the embodiment of the present application is provided by surrounding the electromagnetic coil 130 on the outside of the inner drum 110 and being coaxially arranged with the inner drum 110. When the electromagnetic coil 130 is energized, the high-frequency and high-voltage current flowing through the electromagnetic coil 130 will generate a high-speed changing alternating magnetic field. When the inner drum 110 rotates, it cuts the alternating magnetic field lines and generates alternating currents (i.e., eddy currents). The eddy currents make the water molecules in the inner drum 110 move irregularly at high speed. The water molecules collide and rub against each other to generate heat energy, thereby achieving heating of the washing water. This electromagnetic heating method improves the heating efficiency of the washing water and solves the problem of low heating efficiency of the washing water caused by the heating tube of the traditional technology heating by heat conduction. Moreover, the electromagnetic coil 130 is arranged around the inner drum 110 to evenly expand the range of the magnetic field, so as to evenly heat the water in the inner drum 110, and the clothes in the inner drum 110 are not easily damaged by local high temperature.

[0031] Traditional washing machines have no water descaling function or set a filter at the water inlet valve for hard water filtration. The water inlet valve is easy to clog and has a high maintenance rate. In addition, the traditional heating tube heating method achieves the improvement of the washing ratio of clothes only through the catalytic improvement of the active enzyme of the detergent by the change of water temperature, which has little effect. The drum assembly provided in the embodiment of the present application can effectively solve the above-mentioned problems existing in the traditional technology. It can be understood that the drum assembly provided in the embodiment of the present application is due to the existence of the electromagnetic field. During the rotation of the inner drum 110, when the water flow inside the inner drum 110 passes through the non-uniform magnetic field at a certain speed, it will be cut into smaller water molecules under the action of the Lorentz force. These small molecules gain energy, resulting in changes in the conductivity, solubility, dissolved oxygen content and osmotic pressure of water, which can improve the dissolution rate of the detergent and the activity of the active enzyme in the detergent, thereby improving the washing ratio of the washing machine. At the same time, small molecule water groups can attract and surround calcium and magnesium ions that are easy to form hard scale in water, making it difficult for them to approach the inner wall of the inner drum 110 and the outer drum 120. In addition, the strong electromagnetic field and eddy current effect generated by the electromagnetic coil 130 form a rotating magnetic field, which helps to decompose and dissolve the scale layer in the water. At the same time, the eddy current can also promote the separation of particles in the water and reduce the formation of scale. When draining, the scale can be discharged through the drainage system; and the movement of calcium, magnesium and bicarbonate particles in the magnetized water changes, the adhesion is destroyed, and the crystals become fine particles, presenting loose crystalline fluid deposits, thereby softening the water quality and reducing the impact of hard water on washing clothes.

[0032] To sum up, the drum assembly provided in the embodiment of the present application surrounds the electromagnetic coil 130 around the outer side of the inner drum 110 and is coaxially arranged with the inner drum 110. The use of electromagnetic heating can not only improve the heating efficiency of the washing water, but also increase the activity of the washing water and detergent to improve the cleaning ratio, and at the same time can soften the water quality.

[0033] In some embodiments of the present application, the electromagnetic coil 130 is disposed between the inner cylinder 110 and the outer cylinder 120 , and the electromagnetic coil 130 is detachably connected to the inner wall of the outer cylinder 120 , thereby facilitating maintenance or replacement of the electromagnetic coil 130 .

[0034] Optionally, the electromagnetic coil 130 is provided with a buckle made of non-metallic material, and the inner wall of the outer cylinder 120 is provided with a buckle hole, and the buckle is engaged with the buckle hole, so as to realize the detachable connection between the electromagnetic coil 130 and the inner wall of the outer cylinder 120, and at the same time facilitate the disassembly and assembly of the electromagnetic coil 130 and improve the disassembly and assembly efficiency of the electromagnetic coil 130.

[0035] Optionally, there are multiple buckles and multiple holes, multiple buckles are arranged at intervals along the circumference of the electromagnetic coil 130, and multiple holes are arranged at intervals along the circumference of the outer cylinder 120. The multiple buckles and the multiple holes are snap-fitted one-to-one, so that the electromagnetic coil 130 is stably connected to the inner wall of the outer cylinder 120, thereby improving the reliability of the electromagnetic coil 130.

[0036] In some embodiments of the present application, a mounting frame is provided on the inner side wall of the outer cylinder 120 , the mounting frame is made of a non-metallic material, and the electromagnetic coil 130 is fixed on the mounting frame.

[0037] Optionally, the mounting frame includes a fixing portion, and the inner wall of the outer cylinder 120 has an assembly portion that matches the fixing portion, and the fixing portion and the assembly portion are fixedly connected via a connector. Alternatively, the inner wall of the outer cylinder 120 is provided with an installation groove, and the mounting frame is installed in the installation groove.

[0038] In some embodiments of the present application, the drum assembly further includes a temperature detection device, which is disposed on the inner wall of the outer drum 120. The temperature detection device is used to detect the water temperature in the inner drum 110. The temperature detection device and the electromagnetic induction coil are respectively connected to the main controller of the washing machine for communication. By using the temperature detection device to detect the water temperature in the inner drum 110, the water temperature in the inner drum 110 can be controlled, thereby effectively avoiding the washing effect being affected or the laundry being damaged due to the low or high water temperature in the inner drum 110.

[0039] Optionally, the temperature detection device includes a plurality of temperature sensors, which are arranged on the inner wall of the outer drum 120 and spaced along the circumference of the outer drum 120. The water temperature in the inner drum 110 is detected by the plurality of temperature sensors, so that the water temperature detection result of the temperature detection device is more accurate and the reliability of water temperature control is improved. Specifically, the plurality of temperature sensors are electrically connected to the main controller of the washing machine, and the plurality of temperature sensors spaced along the circumference of the outer drum 120 simultaneously detect the water temperature in the inner drum 110, and the plurality of temperature values ​​at different positions of the inner drum 110 are obtained by the plurality of temperature sensors, and then the temperature average value is calculated to reduce the error of water temperature detection.

[0040] Of course, in other embodiments, the temperature detection device may also include only one temperature sensor, as long as it can realize the function of detecting the water temperature in the inner drum 110 .

[0041] The present application also provides a washing machine, such as Figure 5 to Figure 7 As shown, the washing machine includes a housing 200 and a drum assembly disposed in the housing 200. The specific structure of the drum assembly refers to the above embodiment. Since the washing machine adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0042] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0043] The drum assembly and washing machine provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technicians in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A roller assembly, characterized in that: The invention comprises an inner cylinder (110), an outer cylinder (120) and an electromagnetic coil (130); the inner cylinder (110) is arranged inside the outer cylinder (120) and is coaxially arranged with the outer cylinder (120); the electromagnetic coil (130) surrounds the outer side of the inner cylinder (110) and is coaxially arranged with the inner cylinder (110); the electromagnetic coil (130) is used to heat water in the inner cylinder (110).

2. The drum assembly according to claim 1, characterized in that: The electromagnetic coil (130) is disposed between the inner cylinder (110) and the outer cylinder (120), and the electromagnetic coil (130) is detachably connected to the inner wall of the outer cylinder (120).

3. The drum assembly according to claim 2, characterized in that: The electromagnetic coil (130) is provided with a buckle made of non-metallic material, the inner wall of the outer cylinder (120) is provided with a buckle hole, and the buckle is engaged with the buckle hole.

4. The drum assembly according to claim 3, characterized in that: The number of the buckles and the number of the holes are both multiple, the multiple buckles are arranged at intervals along the circumference of the electromagnetic coil (130), the multiple holes are arranged at intervals along the circumference of the outer cylinder (120), and the multiple buckles are engaged with the multiple holes in a one-to-one correspondence.

5. The drum assembly according to claim 1, characterized in that: A mounting frame made of non-metallic material is provided on the inner side wall of the outer cylinder (120), and the electromagnetic coil (130) is fixed on the mounting frame.

6. The drum assembly according to claim 5, characterized in that: The mounting frame comprises a fixing portion, and the inner side wall of the outer cylinder (120) is provided with an assembly portion matching the fixing portion, and the fixing portion and the assembly portion are fixedly connected via a connecting piece.

7. The drum assembly according to claim 5, characterized in that: An installation groove is provided on the inner side wall of the outer cylinder (120), and the installation frame is installed in the installation groove.

8. The drum assembly according to claim 1, characterized in that: The drum assembly further comprises a temperature detection device, which is arranged on the inner wall of the outer drum (120) and is used to detect the water temperature in the inner drum (110).

9. The drum assembly according to claim 8, characterized in that: The temperature detection device comprises a plurality of temperature sensors, which are arranged on the inner wall of the outer cylinder (120) and spaced apart along the circumferential direction of the outer cylinder (120).

10. A washing machine, characterized in that: It comprises a housing (200) and a drum assembly according to any one of claims 1 to 9, wherein the drum assembly is arranged in the housing (200).

Images