Multi-zone washing machine

Abstract

The utility model relates to a kind of multi-partition washing machines, including big cylinder and small cylinder, further including the drying assembly for drying small cylinder, the drying assembly includes: air inlet pipe, with the air inlet of small cylinder is connected;Heating element, in the air inlet pipe, for heating air;Fan, in the inlet end of air inlet pipe, for the outside wind body suction into air inlet pipe;Air outlet pipe, with the air outlet of small cylinder is connected;And air return pipe, first end with the air outlet pipe is connected, second end extends to the air inlet of fan place.Adopt above structure, air return pipe is not directly connected with fan, but only recycling gas is transported to the air inlet of fan, not only does not affect the input of external dry air, and the gas output in small cylinder is partially heat recovery, it is favorable to improve drying efficiency, reduce energy waste.

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 comprising a first drum, a second drum, and an electric heating system. The electric heating system is capable of generating 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 is capable of generating hot airflow and delivering the hot airflow to the first drum.

[0004] The washing machine with the above structure can wash different types of clothes through multiple drums to meet the user's needs for categorized washing. However, each small section drum often needs to be equipped with an independent drying system. Since the small section is small, if the internal airflow is directly discharged during the drying process, it will cause a lot of energy waste. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a multi-zone washing machine that can partially recover and utilize drying heat, thereby improving drying efficiency and reducing energy waste, in light of 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 drum, and further includes a drying assembly for drying the small drum, the drying assembly comprising:

[0008] An air inlet pipe is connected to the air inlet of the small cylinder;

[0009] A heating element is disposed in the air inlet pipe and is used to heat the incoming air;

[0010] A fan is installed at the inlet end of the air inlet pipe to draw external air into the air inlet pipe;

[0011] An exhaust duct is connected to the air outlet of the small cylinder; and

[0012] The return air duct has its first end connected to the exhaust duct and its second end extending to the air intake of the fan.

[0013] With the above structure, the return air duct is not directly connected to the fan, but only transports the recovered gas to the fan intake. This not only does not affect the input of outside dry air, but also recovers some of the heat of the gas output from the small cylinder, which helps to improve drying efficiency and reduce energy waste.

[0014] Preferably, the exhaust duct is equipped with a control valve for controlling the air volume supplied to the return air duct. This control valve can be adjusted to control the air volume discharged from the exhaust duct and the flow rate delivered to the fan via the return air duct.

[0015] Preferably, the small cylinders include a first small cylinder and a second small cylinder arranged side by side in a horizontal direction. The exhaust pipe includes a first exhaust pipe connected to the first small cylinder and a second exhaust pipe connected to the second small cylinder. The exhaust ports on the first and second small cylinders are respectively opened on their adjacent side walls. The first and second exhaust pipes extend from bottom to top and are arranged in an inverted V-shape. The upper ends of the inverted V-shape are connected to the main exhaust pipe. The return air pipe is connected to the side of the main exhaust pipe. The control valve is located in the main exhaust pipe and is arranged corresponding to the return air pipe. This structure facilitates the provision of more categorized cleaning needs, and the control valve allows for control of the return air volume of the return air pipe based on the exhaust and inlet air temperatures, thereby better coordinating heat recovery and drying efficiency requirements.

[0016] Preferably, the first exhaust duct is equipped with a first temperature sensor for detecting the outlet temperature of the first small duct, and the second exhaust duct is equipped with a second temperature sensor for detecting the outlet temperature of the second small duct. This structure facilitates accurate detection of the exhaust temperature, thereby allowing for corresponding adjustment of the return air volume.

[0017] Preferably, the exhaust duct is located at the rear of the small cylinder and extends from bottom to top along the airflow direction to the top of the small cylinder. The air inlet duct, heating element, and fan are located at the front of the small cylinder and are situated above the small cylinder. The return air duct extends from back to front above the small cylinder to the air intake of the fan. This structure improves the space utilization above the small cylinder, shortens the airflow travel distance, reduces wind resistance, and improves drying efficiency.

[0018] Preferably, the air intake of the fan faces forward, and the second end of the return air duct extends from below the fan to the front side of the fan. The second end of the return air duct is a blind end, and a return air inlet is formed on its upper surface, facing upwards from the air intake. The second end of the return air duct is formed into a flat, laterally extending guide structure, and the return air inlet is formed on the upper wall of this flat guide structure. This structure provides a larger return air area while maintaining the same airflow, thus improving heat recovery efficiency.

[0019] Preferably, a third temperature sensor is installed on the air inlet duct, located downstream of the heating element, to detect the inlet air temperature of the small cylinder. This structure facilitates accurate detection of the inlet air temperature, thereby allowing for corresponding adjustment of the return air volume.

[0020] Preferably, the small cylinders include a first small cylinder and a second small cylinder arranged side by side in a horizontal direction. The air inlet pipe includes a main air inlet pipe, a first air guide duct, and a second air guide duct. The first end of the main air inlet pipe is a gas input end, and the second end is connected to the first and second air guide ducts. The air outlet end of the first air guide duct is connected to the first small cylinder, and the air outlet end of the second air guide duct is connected to the second small cylinder. A first valve for controlling its on / off state is provided on the first air guide duct, and a second valve for controlling its on / off state is provided on the second air guide duct. With the above structure, it is convenient to supply drying hot air to the first and second small cylinders respectively through the drying assembly.

[0021] Preferably, the first and second small cylinders have adjacent air inlets on their sidewalls near the front end, and the drying component has a flat structure and is located in the space above and in front of the first and second small cylinders. This design fully utilizes the space in front of the horizontally placed cylinders, allowing the drying component to be flat and installed there, thus maximizing the use of installation space. Simultaneously, installing the drying component in this location shortens the air inlet stroke, reduces wind resistance and heat loss from the airflow, and improves drying efficiency.

[0022] Compared with the prior art, the advantages of this utility model are as follows: This utility model is equipped with an independent heating element drying component for small sections, which has high heating efficiency. At the same time, in view of the problem that the small volume of the small sections cannot effectively utilize heat, a return air pipe is set up to transfer at least part of the air in the small cylinder to the air inlet of the fan. This return air pipe is not directly connected to the fan, but only transports the recovered gas to the air inlet of the fan. This not only does not affect the input of external dry air, but also recovers part of the heat of the output gas in the small cylinder, which helps to improve drying efficiency and reduce energy waste. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 This is an assembly diagram (back side) of the small cylinder and drying assembly in an embodiment of this utility model;

[0025] Figure 3 This is an assembly diagram (front side) of the small cylinder and drying assembly in an embodiment of this utility model;

[0026] Figure 4 This is a partial cross-sectional view of the drying assembly in this embodiment of the utility model;

[0027] Figure 5This is a schematic diagram of the exhaust pipe in an embodiment of the present invention. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1-5 As shown, the multi-zone washing machine of this embodiment includes a large drum and a small drum. The large drum includes a first large drum 1 and a second large drum 2 arranged vertically at intervals. The small drum is located between the first large drum 1 and the second large drum 2 to meet the user's needs for classified washing.

[0030] In this embodiment, the opening of the small cylinder is arranged facing forward, and it also includes a drying assembly 3 for drying the small cylinder. The drying assembly 3 includes:

[0031] The air inlet pipe is connected to the air inlet 504 of the small tube;

[0032] Heating element 35 is installed in the air inlet pipe and is used to heat the incoming air;

[0033] Fan 36 is located at the inlet end of the air inlet pipe and is used to draw outside air into the air inlet pipe;

[0034] The exhaust duct is connected to the air outlet 50 of the small tube; and

[0035] The return air duct 200 is connected at one end to the exhaust duct and at the other end to the air intake 361 of the fan 36.

[0036] With the above structure, the return air duct 200 is not directly connected to the fan 36, but only transports the recovered gas to the air intake 361 of the fan 36. This not only does not affect the input of outside dry air, but also recovers some heat from the output gas in the small cylinder, which helps to improve drying efficiency and reduce energy waste.

[0037] The exhaust duct is equipped with a control valve 4 for controlling the air volume supplied to the return air duct 200. The control valve 4 can be adjusted to control the air volume discharged from the exhaust duct and the flow rate delivered to the fan 36 via the return air duct 200.

[0038] The small cylinders include a first small cylinder 51 and a second small cylinder 52 arranged horizontally side by side. The exhaust pipes include a first exhaust pipe 501 connected to the first small cylinder 51 and a second exhaust pipe 502 connected to the second small cylinder 52. The exhaust ports on the first small cylinder 51 and the second small cylinder 52 are respectively opened on their adjacent side walls. The first exhaust pipe 501 and the second exhaust pipe 502 extend from bottom to top and are arranged in an inverted V-shape. The upper ends of the inverted V-shape are connected to the exhaust main pipe 503. The return air pipe 200 is connected to the side of the exhaust main pipe 503. The control valve 4 is located in the exhaust main pipe 503 and is arranged corresponding to the return air pipe 200. With the above structure, it is convenient to provide more classified cleaning needs. The control valve 4 can easily control the return air volume of the return air pipe 200 according to the exhaust air temperature and the inlet air temperature, thereby better coordinating the heat recovery and drying efficiency requirements.

[0039] A first temperature sensor 001 for detecting the outlet air temperature of the first small duct 51 is installed on the first exhaust duct 501, and a second temperature sensor 002 for detecting the outlet air temperature of the second small duct 52 is installed on the second exhaust duct 502. This structure facilitates accurate detection of the exhaust air temperature, thereby allowing for corresponding adjustment of the return air volume.

[0040] The exhaust duct is located at the rear of the small cylinder and extends from bottom to top along the airflow direction to the top of the small cylinder. The air inlet duct, heating element 35, and fan 36 are located at the front of the small cylinder and are situated above the small cylinder. The return air duct 200 extends from back to front above the small cylinder to the air intake 361 of the fan 36. This structure improves the space utilization above the small cylinder, shortens the airflow path, reduces wind resistance, and improves drying efficiency.

[0041] The air intake 361 of the fan 36 faces forward. The second end of the return air duct 200 extends from below the fan 36 to the front side of the fan 36. The second end of the return air duct 200 is a blind end, and a return air inlet 201 is formed on its upper surface, facing upwards from the air intake 361. The second end of the return air duct 200 is formed into a flat, laterally extending guide structure 202, and the return air inlet 201 is formed on the upper wall of this flat, guide structure 202. This structure provides a larger return air area while maintaining the same airflow, thereby improving heat recovery efficiency.

[0042] A third temperature sensor 003, located downstream of the heating element 35, is installed on the air inlet duct to detect the inlet air temperature of the small cylinder. This structure facilitates accurate detection of the inlet air temperature, thereby allowing for corresponding adjustment of the return air volume.

[0043] The air inlet duct includes a main air inlet duct 33, a first air guide duct 31, and a second air guide duct 32. The first end of the main air inlet duct 33 is the gas input end, and the second end connects to the first air guide duct 31 and the second air guide duct 32. The outlet end of the first air guide duct 31 connects to the first small cylinder 51, and the outlet end of the second air guide duct 32 connects to the second small cylinder 52. A first valve 01 is installed on the first air guide duct 31 to control its on / off state, and a second valve 02 is installed on the second air guide duct 32 to control its on / off state. This structure facilitates the supply of drying hot air to the first small cylinder 51 and the second small cylinder 52 respectively via the drying assembly 3.

[0044] The first small cylinder 51 and the second small cylinder 52 have adjacent air inlets 504 arranged on their side walls near the front end. The drying component 3 has a flat structure and is located in the space above and in front of the first small cylinder 51 and the second small cylinder 52. This design makes full use of the space in front of the horizontally placed cylinders. Setting the drying component 3 flat and installing it here is beneficial for making full use of the installation space. At the same time, installing the drying component 3 here can also shorten the air inlet stroke, reduce wind resistance and heat loss of the air body, and improve drying efficiency.

[0045] This embodiment features an independent heating element 35 drying assembly 3 for small zones, which has high heating efficiency. To address the issue of inefficient heat utilization in small zones due to their small size, a return air duct 200 is provided. This duct is not directly connected to the fan 36, but only delivers the recovered gas to the fan 36's air intake 361. This not only does not affect the input of external dry air, but also recovers some heat from the gas output from the small zone, thus improving drying efficiency and reducing energy waste.

[0046] 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 a small drum, and further comprising a drying assembly (3) for drying the small drum, characterized in that: The drying assembly (3) includes An air inlet pipe is connected to the air inlet (504) of the small cylinder; A heating element (35) is disposed in the air inlet pipe and is used to heat the incoming air; A fan (36) is provided at the inlet end of the air inlet pipe and is used to draw external air into the air inlet pipe; An exhaust duct is connected to the air outlet (50) of the small cylinder; and The return air duct (200) has its first end connected to the exhaust duct and its second end extended to the air intake (361) of the fan (36).

2. The multi-zone washing machine according to claim 1, characterized in that: The exhaust duct is equipped with a control valve (4) for controlling the air volume supplied to the return air duct (200).

3. The multi-zone washing machine according to claim 2, characterized in that: The small cylinders include a first small cylinder (51) and a second small cylinder (52) arranged side by side in the horizontal direction. The exhaust pipes include a first exhaust pipe (501) connected to the first small cylinder (51) and a second exhaust pipe (502) connected to the second small cylinder (52). The exhaust ports on the first small cylinder (51) and the second small cylinder (52) are respectively opened on the side walls that are close to each other. The first exhaust pipe (501) and the second exhaust pipe (502) extend from bottom to top and are arranged in an inverted V-shaped structure. The upper end of the inverted V-shaped structure is connected to and connected to the exhaust main pipe (503). The return air pipe (200) is connected to the side of the exhaust main pipe (503). The control valve (4) is located in the exhaust main pipe (503) and is arranged corresponding to the return air pipe (200).

4. The multi-zone washing machine according to claim 3, characterized in that: The first exhaust pipe (501) is equipped with a first temperature sensor (001) for detecting the air temperature of the first small tube (51), and the second exhaust pipe (502) is equipped with a second temperature sensor (002) for detecting the air temperature of the second small tube (52).

5. The multi-zone washing machine according to claim 1, characterized in that: The exhaust pipe is located at the rear of the small cylinder and extends from bottom to top along the airflow direction to the top of the small cylinder. The air inlet pipe, heating element (35) and fan (36) are located at the front of the small cylinder and are located above the small cylinder. The return air pipe (200) extends from back to front above the small cylinder to the air intake (361) of the fan (36).

6. The multi-zone washing machine according to claim 5, characterized in that: The air intake (361) of the fan (36) is arranged facing forward, and the second end of the return air pipe (200) extends from below the fan (36) to the front side of the fan (36). The second end of the return air pipe (200) is a blind end and a return air inlet (201) is arranged on the upper surface with the air intake (361) facing upward.

7. The multi-zone washing machine according to claim 6, characterized in that: The second end of the return air duct (200) is formed into a flat guide structure that extends laterally, and the return air inlet (201) is opened on the upper wall of the flat guide structure.

8. The multi-zone washing machine according to any one of claims 1 to 7, characterized in that: The air inlet pipe is equipped with a third temperature sensor (003) located downstream of the heating element (35) for detecting the air inlet temperature of the small cylinder.

9. The multi-zone washing machine according to any one of claims 1 to 7, characterized in that: The small tubes include a first small tube (51) and a second small tube (52) arranged side by side in the horizontal direction. The air inlet pipe includes an air inlet main pipe (33), a first air guide duct (31), and a second air guide duct (32). The first end of the air inlet main pipe (33) is a gas input end, and the second end is connected to the first air guide duct (31) and the second air guide duct (32). The air outlet end of the first air guide duct (31) is connected to the first small tube (51), and the air outlet end of the second air guide duct (32) is connected to the second small tube (52).

10. The multi-zone washing machine according to claim 9, characterized in that: The first small cylinder (51) and the second small cylinder (52) are provided with adjacent air inlets (504) on the side wall near the front end. The drying component (3) has a flat structure and is located in the space above and in front of the first small cylinder (51) and the second small cylinder (52).

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