Drum washing machine door assembly and drum washing machine having the same

Abstract

The utility model relates to a drum washing machine door subassembly and have the drum washing machine of this door subassembly, drum washing machine door subassembly includes door body, and the door body includes door frame and sets up the observation window on the door frame, and the inside of observation window forms observation window cavity, characterized by: still including the negative ion generator of being located in observation window cavity, the cavity wall of observation window cavity is equipped with the through -hole of emitting head of negative ion generator's exposure, and the cavity wall of observation window cavity is with the shell inside fluid communication of drum washing machine by the help of through -hole. Advantages are: this drum washing machine integrates the negative ion function for sterilization and disinfection on the door subassembly, makes the structure more compact, and has improved the function richness of door subassembly, the efficiency and use effect of washing machine, in addition can fast negative ion and clothes contact, thereby improve washing efficiency, negative ion can effectively sterilize and disinfect, avoid the mould smell of drum washing machine after washing, and need not additional drying function, save energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, and in particular to a drum washing machine door assembly and a drum washing machine having the door assembly. Background Technology

[0002] Existing drum washing machines are prone to developing a musty smell after washing. Current solutions mainly involve introducing ozone for sterilization and disinfection, followed by air drying or tumble drying. However, the ozone introduction time is too short to guarantee effectiveness, and it also increases energy consumption.

[0003] To solve the above-mentioned technical problems, Chinese utility model patent ZL201120222280.2 (authorization announcement number CN202193985U) discloses a drum washing machine with negative ion sterilization function. The drum washing machine includes an outer drum, an air pump and a negative ion generator. The air pump is connected to the negative ion generator through an air delivery pipeline, and the negative ion generator is connected to the outer drum of the washing machine through a negative ion gas delivery pipeline equipped with a one-way control valve.

[0004] Although this drum washing machine adds a negative ion gas generator to the basic design, allowing users to turn it on or off as needed, and when activated, the negative ion gas generated by the generator enters the outer drum through a delivery pipe, filling the inner drum with negative ions and ensuring thorough sterilization and deodorization of the clothes, it has the following limitations: Firstly, the negative ion gas generator is externally connected to the outer drum and is not an inherent function of the washing machine; secondly, while the door assembly of existing drum washing machines is becoming increasingly larger and more complex, its functionality remains insufficient, necessitating further improvements to enhance efficiency and performance. Therefore, further improvements to existing technology are required. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a drum washing machine door assembly that integrates a negative ion function for sterilization and disinfection into the door assembly, thereby enriching the functions of the drum washing machine door assembly, in light of the above-mentioned prior art.

[0006] The second technical problem to be solved by this utility model is to provide a drum washing machine having the above-mentioned door assembly.

[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a drum washing machine door assembly, including a door body that can be opened and closed and is disposed on the front side of the drum washing machine shell, the door body including a door frame and an observation window disposed on the door frame, the interior of the observation window forming an observation window cavity; characterized in that: it further includes a negative ion generator disposed in the observation window cavity, the cavity wall of the observation window cavity is provided with a through hole for the emitter head of the negative ion generator to be exposed, and the cavity wall of the observation window cavity is in fluid communication with the interior of the drum washing machine shell by means of the through hole.

[0008] Preferably, the emitter of the negative ion generator is substantially flush with the outer wall of the observation window.

[0009] To prevent water from entering the negative ion generator during the washing process of the drum washing machine, a water-blocking plate that can be slidably constrained outside the observation window is also provided on the observation window. The water-blocking plate is used to close or open the through hole.

[0010] Preferably, the outer peripheral wall of the observation window is provided with a guide rail, and the water-proof plate is slidably disposed within the guide rail.

[0011] To further improve the waterproof performance of the negative ion generator, the waterproof plate is provided with a sealing element on the wall surface near the observation window, which can be used to seal the through hole.

[0012] Preferably, at least two negative ion generators are arranged at intervals along the circumference of the observation window cavity.

[0013] To improve the sterilization effect, each negative ion generator has at least two emitters, which are arranged side by side at intervals on the body of the negative ion generator. Each emitter has multiple small holes for emitting negative ions.

[0014] To prevent leakage of negative ions, preferably, the observation window cavity is provided with a partition, which can divide the observation window cavity into two independent chambers arranged one in front and one behind, and the negative ion generator is located in a chamber inside the shell of the drum washing machine.

[0015] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a drum washing machine, including a shell and a door assembly that can be opened and closed on the front side of the shell, characterized in that: the door assembly adopts the drum washing machine door assembly as described above.

[0016] Preferably, the housing contains a controller, which is electrically connected to the negative ion generator.

[0017] Compared with existing technologies, the advantages of this invention are as follows: By setting a negative ion generator inside the observation window cavity, and providing a through hole on the cavity wall for the generator's emitter head to be exposed, the cavity wall of the observation window cavity is fluidly connected to the interior of the drum washing machine's casing via this through hole. Therefore, this drum washing machine integrates the negative ion function for sterilization and disinfection into the door assembly, making the structure more compact and improving the functionality of the door assembly, the efficiency of the washing machine, and its performance, thus meeting the demand for increasingly larger but less functional door assemblies. Furthermore, the rapid emission of negative ions before the clothes are filled with water allows for quick contact between the negative ions and the clothes, thereby improving washing efficiency. The negative ions also effectively sterilize and disinfect, preventing musty odors after washing, and eliminates the need for an additional drying function, saving energy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the drum washing machine door assembly in an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 A partial structural diagram (omitting a water-blocking plate);

[0020] Figure 3 This is a schematic diagram of the observation window structure in an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the observation window in an embodiment of this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-4 As shown, this embodiment involves a drum washing machine including a housing and a door assembly that can be opened and closed on the front side of the housing. The focus of this utility model is the structure of the door assembly. The specific structure of the drum washing machine is prior art. For details, please refer to the content disclosed in Chinese utility model patent "Door Assembly and Drum Washing Machine" with patent number ZL202320922161.0 (authorization announcement number CN220013123U). It will not be described in detail in this embodiment.

[0024] The door assembly of the drum washing machine in this embodiment includes a door 1 that is openable and closable and disposed on the front side of the drum washing machine casing. The door 1 includes a door frame 11 and an observation window 12 disposed on the door frame 11. An observation window cavity 120 is formed inside the observation window cavity 120. A negative ion generator 2 is disposed inside the observation window cavity 120. A through hole a is provided on the cavity wall of the observation window cavity 120 for the emitter head 21 of the negative ion generator 2 to be exposed. The cavity wall of the observation window cavity 120 is in fluid communication with the inside of the drum washing machine casing through the through hole a. A controller (not shown in the figure) is disposed inside the drum washing machine casing, and the controller is electrically connected to the negative ion generator 2.

[0025] like Figure 2 As shown, the emitter head 21 of the negative ion generator 2 is basically flush with the outer wall of the observation window 12. The observation window 12 is also equipped with a water-blocking plate 3 that can be slidably constrained outside the observation window 12. The water-blocking plate 3 is used to close or open the through hole a. To achieve the sliding of the water-blocking plate 3, a guide rail 4 is provided on the outer peripheral wall of the observation window 12, and the water-blocking plate 3 is slidably disposed within the guide rail 4. In this embodiment, the water-blocking plate 3 is made of transparent polycarbonate. Of course, to prevent the water-blocking plate 3 from accidentally moving during the washing process of the drum washing machine, the water-blocking plate 3 can also be snapped onto the outer wall of the observation window 12 using a snap-fit ​​method. The specific snap-fit ​​method can adopt the existing snap-fit ​​or locking method, which will not be elaborated here. In addition, to improve waterproofing, the water-blocking plate 3 has a sealing element (not shown in the figure) on the wall near the observation window 12. The sealing element can be used to seal the through hole a. This sealing element can be made of a flexible material (such as silicone) to ensure a sealed connection with the through hole a.

[0026] At least two negative ion generators 2 are arranged at circumferential intervals along the observation window cavity 120°. Each negative ion generator 2 has at least two emission heads 21, which are arranged side-by-side at intervals on the body 22 of the negative ion generator 2. Each emission head 21 has multiple small holes 23 for emitting negative ions. Figure 2 As shown, in this embodiment, there are two negative ion generators 2, as follows: Figure 3 As shown, in this embodiment, each negative ion generator 2 has 5 emitters 21. The negative ion generator in this embodiment adopts the principle of corona discharge, is powered by a high-voltage power supply, and generates ionized air near the electrodes, thereby releasing a large number of negative ions. The electrode material of the negative ion generator can be made of conductive materials such as carbon fiber or metal wire.

[0027] The observation window cavity 120 is equipped with a partition 5, which divides the observation window cavity 120 into two independent chambers arranged one in front of the other. The negative ion generator 2 is located in the chamber inside the casing of the drum washing machine. On the one hand, the partition 5 can be used to fix the negative ion generator; on the other hand, the partition 5 can also play an isolation role to ensure that negative ions do not leak and to protect user safety.

[0028] The working process of the negative ion generator in this embodiment is as follows:

[0029] Before the washing machine fills with water, it quickly emits negative ions into the drum, allowing the negative ions to come into contact with the clothes more quickly and enhancing washing efficiency. Specifically, the negative ion generator is electrically connected to the controller. At the start of the washing program, the controller first drives the negative ion generator to work for a period of time to allow the negative ions to fully diffuse into the drum. Then, the controller controls the water baffle to seal the opening, and then executes the washing steps such as water intake and agitation.

[0030] The negative ion generator can also be set to run continuously for a period of time after washing to sterilize and disinfect the washing drum and prevent musty odors. Furthermore, the operating time and intensity of the negative ion generator can be adjusted according to actual needs to achieve energy conservation and environmental protection.

[0031] 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 door assembly for a drum washing machine, comprising a door body (1) closably disposed on the front side of the casing of the drum washing machine, the door body (1) comprising a door frame (11) and an observation window (12) disposed on the door frame (11), the interior of the observation window (12) forming an observation window cavity (120); characterized in that: It also includes a negative ion generator (2) disposed in the observation window cavity (120). The cavity wall of the observation window cavity (120) is provided with a through hole (a) for the emitter head (21) of the negative ion generator (2) to be exposed. The cavity wall of the observation window cavity (120) is in fluid communication with the inside of the drum washing machine through the through hole (a).

2. The drum washing machine door assembly according to claim 1, characterized in that: The emitter (21) of the negative ion generator (2) is basically flush with the outer wall of the observation window (12).

3. The drum washing machine door assembly according to claim 2, characterized in that: The observation window (12) is also provided with a water-blocking plate (3) that can be slidably constrained outside the observation window (12), and the water-blocking plate (3) is used to close or open the through hole (a).

4. The drum washing machine door assembly according to claim 3, characterized in that: The outer peripheral wall of the observation window (12) is provided with a guide rail (4), and the water-proof plate (3) is slidably disposed in the guide rail (4).

5. The drum washing machine door assembly according to claim 4, characterized in that: The water-proof plate (3) has a sealing element on the wall surface near the observation window (12), which can be used to block the through hole (a).

6. The drum washing machine door assembly according to any one of claims 1 to 5, characterized in that: The negative ion generator (2) consists of at least two units spaced apart circumferentially along the observation window cavity (120).

7. The drum washing machine door assembly according to claim 6, characterized in that: Each negative ion generator (2) has at least two emitters (21) arranged side by side at intervals on the body (22) of the negative ion generator (2), and each emitter (21) has multiple small holes (23) for emitting negative ions.

8. The drum washing machine door assembly according to claim 7, characterized in that: The observation window cavity (120) is provided with a partition (5), which can divide the observation window cavity (120) into two independent chambers arranged one in front and one behind. The negative ion generator (2) is located in a chamber close to the shell of the drum washing machine.

9. A drum washing machine, comprising a housing and a door assembly that is openable and closable on the front side of the housing, characterized in that: The door assembly is a drum washing machine door assembly as described in any one of claims 1 to 8.

10. The drum washing machine according to claim 3, characterized in that: The housing contains a controller, which is electrically connected to the negative ion generator (2).

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