Multi-zone washing machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-10
Smart Images

Figure CN224478275U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of washing machine technology, specifically to a multi-zone washing machine. Background Technology
[0002] As living standards continue to improve, people are demanding more from the details of daily life. For example, when washing clothes, people sort them for washing, and the types of sorting are becoming increasingly diverse. To meet this demand, multi-zone washing machines have emerged on the market.
[0003] CN202310310329.7, "A Multi-Drum Washing Machine," discloses a structure including a first drum, a second drum, and an electric heating system. The electric heating system generates hot airflow, which can be simultaneously or separately delivered to the first drum and / or the second drum. The multi-drum washing machine also includes a first drum and a heat pump system, which generates hot airflow and delivers it to the first drum. This washing machine structure allows for the washing of different types of clothing through multiple drums, meeting users' needs for categorized washing.
[0004] The small sections of the washing machine mentioned above mainly use a drum-type structure for washing, although a pulsator-type structure can also be used. After washing, the clothes inside the drum need to be dried. However, for small-section washing drums, due to size limitations, airflow is prone to short-circuiting, resulting in poor drying performance. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a multi-zone washing machine that can maintain axial airflow and thus improve the drying effect, based on the current state of the technology.
[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0007] A multi-zone washing machine includes a large drum and a small zone. The small zone is a pulsator drum assembly with an open top. The pulsator drum assembly includes an outer drum and an inner drum rotatably disposed in the outer drum. The side wall of the outer drum partially protrudes outward to form an air inlet channel extending axially along the outer drum. The air inlet of the air inlet channel is located at the upper edge of the outer drum, and the air outlet of the air inlet channel is located at the bottom of the outer drum.
[0008] With the above structure, during the drying process, hot air is delivered from top to bottom to the bottom of the outer drum through the air inlet channel. Then, under the rotation of the impeller drum, the airflow is evenly dispersed from bottom to top within the inner drum, effectively preventing short-circuiting of the airflow between the outer and inner drums, thus improving the drying effect. Furthermore, during the washing process, the lower end of the air inlet channel is below the water level, and the washing water creates a water seal at the lower end of the air inlet channel, preventing the foam from overflowing through the air inlet pipe during the washing process.
[0009] Preferably, a portion of the outer cylinder sidewall protrudes outward to form an air intake area, and the inner bottom wall of the outer cylinder has an upward-facing clamping groove at the junction with the air intake area. A detachable partition is installed in the outer cylinder, which can be inserted from top to bottom into the clamping groove to isolate the air intake area and form an air intake channel. This structure facilitates the removal of the partition for cleaning the air intake channel.
[0010] Preferably, the bottom of the partition is provided with spaced-apart pins. In the assembled state, the pins are inserted into the grooves, and the air outlet is formed between the lower edge of the partition and the inner bottom wall of the outer cylinder. This structure places the air outlet at the bottom, which facilitates the directional delivery of air.
[0011] Preferably, the top of the outer cylinder is provided with a first buffer chamber extending outward from the air inlet area. The top of the first buffer chamber is covered with a first grid, and an air inlet pipe connected to the top of the air inlet area is provided above the first grid. The first buffer chamber and the first grid are provided to prevent foam from overflowing through the air inlet pipe when the water level inside the cylinder is too low and a large amount of foam is present.
[0012] Preferably, the top of the outer cylinder is provided with a cover plate that can open or close the top opening of the inner cylinder, and the cover plate is provided with an exhaust port that communicates with the inner cylinder. The exhaust port is located here to allow airflow from the bottom up in the inner cylinder to be output.
[0013] Preferably, the cover plate has a hollow interior forming a second buffer chamber that communicates with the inner cylinder, and the exhaust vent is covered with a second grille. An exhaust pipe is connected to the top of the second buffer chamber. The aforementioned second buffer chamber and second grille are provided to prevent foam from overflowing through the exhaust vent during the washing process.
[0014] Preferably, the air outlet duct is equipped with an air valve located near the second buffer chamber for controlling its opening and closing. In the washing state, the air valve can shut off the air outlet duct to prevent foam overflow.
[0015] The washing machine of this utility model includes a frame, a first large drum located on the upper part of the frame, and a second large drum located on the lower part of the frame. The smaller compartment is located between the first and second large drums. The smaller compartment may have two smaller drums arranged side by side. This structure is adopted to meet consumers' needs for more categorized washing.
[0016] Preferably, the small compartment has a drawer-type structure, including a drawer shell that can be pulled out and back on the frame, and the impeller assembly is located in the drawer shell. With this structure, it is convenient for the user to take out and put in clothes after the drawer shell is pulled out.
[0017] Compared with the prior art, the advantages of this utility model are as follows: This utility model sets the small partition as a pulsator drum assembly with an open top, which is convenient for taking and putting away clothes; the air inlet channel is directly formed on the side wall of the outer drum and extends from top to bottom along the axial direction. During the drying process, hot air is transported from top to bottom to the bottom of the outer drum through the air inlet channel. Then, under the rotation of the pulsator drum, the airflow is evenly dispersed from bottom to top in the inner drum, which can effectively avoid short circuit of airflow between the outer drum and the inner drum, thereby improving the drying effect. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model (drawer pushed in).
[0019] Figure 2 This is a structural schematic diagram of an embodiment of the present utility model (drawer pulled out);
[0020] Figure 3 This is a schematic diagram of the structure of the small partition in an embodiment of this utility model;
[0021] Figure 4 for Figure 3 A sectional view;
[0022] Figure 5 This is a cross-sectional view of the outer cylinder in an embodiment of this utility model;
[0023] Figure 6 for Figure 5 The exploded diagram. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0025] like Figures 1-6 As shown, the multi-zone washing machine of this embodiment includes a frame 1, a first large drum 10 located on the upper part of the frame 1, and a second large drum 20 located on the lower part of the frame 1. A small zone 30 is provided between the first large drum 10 and the second large drum 20. The small zone 30 may have two small drums arranged side by side. This structure is adopted to meet consumers' needs for more classified washing.
[0026] In this embodiment, the small section 30 is a pulsator cylinder assembly with a top opening 300. The pulsator cylinder assembly includes an outer cylinder 31 and an inner cylinder 32 rotatably disposed in the outer cylinder 31. The side wall of the outer cylinder 31 partially protrudes outward to form an air inlet channel 311 extending axially along the outer cylinder 31. The air inlet of the air inlet channel 311 is located at the upper edge of the outer cylinder 31, and the air outlet 332 of the air inlet channel 311 is located at the bottom of the outer cylinder 31.
[0027] With the above structure, during the drying process, hot air is delivered from top to bottom to the bottom of the outer drum 31 through the air inlet channel 311. Then, under the rotation of the impeller drum, the airflow is evenly dispersed from bottom to top in the inner drum 32, effectively preventing short-circuiting of the airflow between the outer drum 31 and the inner drum 32, thereby improving the drying effect. Furthermore, during the washing process, the lower end of the air inlet channel 311 is below the water level, and the washing water seals the lower end of the air inlet channel 311, preventing the foam from overflowing through the air inlet pipe 34 during the washing process.
[0028] A portion of the side wall of the outer cylinder 31 protrudes outward to form an air inlet area 312. The inner bottom wall of the outer cylinder 31 has an upward-facing clamping groove 313 at its junction with the air inlet area 312. A detachable partition 33 is installed in the outer cylinder 31, which can be inserted from top to bottom into the clamping groove 313 to isolate the air inlet area 312, forming an air inlet channel 311. This structure facilitates the removal of the partition 33 for cleaning the air inlet channel 311.
[0029] The bottom of the partition 33 is provided with spaced-apart pins 331. When assembled, the pins 331 are inserted into the clamping groove 313, and an air outlet 332 is formed between the lower edge of the partition 33 and the inner bottom wall of the outer cylinder 31. This structure allows the air outlet 332 to be positioned at the bottom, which facilitates the directional delivery of air.
[0030] The top of the outer cylinder 31 is provided with a first buffer chamber 314 extending outward from the air inlet area 312. The top of the first buffer chamber 314 is covered with a first grille 315, and an air inlet pipe 34 connected to the top of the air inlet area 312 is provided above the first grille 315. The first buffer chamber 314 and the first grille 315 are provided to prevent foam from overflowing through the air inlet pipe 34 when the water level in the cylinder is too low and a large amount of foam is present.
[0031] The outer cylinder 31 is provided with a cover plate 35 at the top, which can open or close the top opening 300 of the inner cylinder 32. The cover plate 35 is provided with an exhaust port 350 that communicates with the inner cylinder 32. The exhaust port 350 is located here to allow airflow from the bottom up in the inner cylinder 32 to be output.
[0032] The cover plate 35 has a hollow interior forming a second buffer chamber 351 that communicates with the inner cylinder 32. A second grille 352 covers the exhaust port 350, and an exhaust pipe 36 is connected to the top of the second buffer chamber 351. The second buffer chamber 351 and the second grille 352 are provided to prevent foam from overflowing through the exhaust port 350 during the washing process.
[0033] An air valve 361 is provided in the air outlet duct 36 near the second buffer chamber 351 for controlling its opening and closing. In the washing state, the air valve 361 can isolate the air outlet duct 36 to prevent foam from overflowing.
[0034] The small compartment 30 has a drawer-type structure, including a drawer shell 3 that can be pulled out from the front and back on the frame 1, and a pulsator assembly located in the drawer shell 3. With this structure, it is convenient for users to take out and put in clothes after pulling out the drawer shell 3.
[0035] In this embodiment, the small partition 30 is configured as a pulsator assembly with a top opening 300 for easy loading and unloading of clothes; the air inlet channel 311 is directly formed on the side wall of the outer cylinder 31 and extends axially from top to bottom. During the drying process, hot air is transported from top to bottom to the bottom of the outer cylinder 31 through the air inlet channel 311, and then, under the rotation of the pulsator, the airflow is evenly dispersed from bottom to top in the inner cylinder 32, which can effectively prevent the airflow from short-circuiting between the outer cylinder 31 and the inner cylinder 32, thereby improving the drying effect.
[0036] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.
Claims
1. A multi-zone washing machine, comprising a large drum and small zones (30), characterized in that: The small section (30) is a pulsator assembly with a top opening (300). The pulsator assembly includes an outer cylinder (31) and an inner cylinder (32) rotatably disposed in the outer cylinder (31). The side wall of the outer cylinder (31) partially protrudes outward to form an air inlet channel (311) extending axially along the outer cylinder (31). The air inlet of the air inlet channel (311) is located at the upper edge of the outer cylinder (31), and the air outlet (332) of the air inlet channel (311) is located at the bottom of the outer cylinder (31).
2. The multi-zone washing machine according to claim 1, characterized in that: The outer cylinder (31) has a partial outward protrusion on its side wall to form an air intake area (312). The inner bottom wall of the outer cylinder (31) has an upward-facing clamping groove (313) at the junction with the air intake area (312). The outer cylinder (31) is provided with a detachable partition (33) that can be inserted into the clamping groove (313) from top to bottom to isolate the air intake area (312) and form an air intake channel (311).
3. The multi-zone washing machine according to claim 2, characterized in that: The bottom of the partition (33) is provided with spaced-apart pins (331). When assembled, the pins (331) are inserted into the clamping groove (313), and the air outlet (332) is formed between the lower edge of the partition (33) and the inner bottom wall of the outer cylinder (31).
4. The multi-zone washing machine according to claim 2, characterized in that: The top of the outer cylinder (31) is provided with a first buffer chamber (314) extending outward from the air inlet area (312). The top of the first buffer chamber (314) is covered with a first grille (315), and an air inlet pipe (34) connected to the top of the air inlet area (312) is provided on the first grille (315).
5. The multi-zone washing machine according to any one of claims 1 to 4, characterized in that: The outer cylinder (31) is provided with a cover plate (35) at the top, which can open or close the top opening (300) of the inner cylinder (32), and the cover plate (35) is provided with an exhaust port (350) connected to the inner cylinder (32).
6. The multi-zone washing machine according to claim 5, characterized in that: The cover plate (35) is hollow inside to form a second buffer chamber (351) that is connected to the inner cylinder (32). The exhaust port (350) is covered with a second grille (352). The top of the second buffer chamber (351) is connected to an air outlet pipe (36).
7. The multi-zone washing machine according to claim 6, characterized in that: The air outlet pipe (36) is provided with an air valve (361) located near the second buffer chamber (351) for controlling its opening and closing.
8. The multi-zone washing machine according to any one of claims 1 to 4, characterized in that: It includes a frame (1), a first large cylinder (10) located on the upper part of the frame (1), and a second large cylinder (20) located on the lower part of the frame (1). The small partition (30) is located between the first large cylinder (10) and the second large cylinder (20).
9. The multi-zone washing machine according to claim 8, characterized in that: The small partition (30) is a drawer-type structure, including a drawer shell (3) that can be pulled out and back on the frame (1), and the impeller cylinder assembly is located in the drawer shell (3).