Dishwasher and sterilization control method of dishwasher

Abstract

The embodiment of the application provides a kind of dishwasher, including dishwasher cavity, ultraviolet sterilization device and drive module;Ultraviolet sterilization device, activity is set in the inner side of dishwasher cavity;Drive module, it is set outside the dishwasher cavity, and it is connected with ultraviolet sterilization device;Drive module is used to drive ultraviolet sterilization device movement, to make ultraviolet sterilization device to dishwasher sterilization.The dishwasher provided by the embodiment of the application can drive ultraviolet lamp to move by drive module, solve the problem that ultraviolet lamp position is fixed and cannot realize full-cavity sterilization, reduce the cost of dishwasher, not only improve the cleaning and hygiene standard of tableware, also bring more convenience and economic benefits for user.

Description

Technical Field

[0001] This application relates to the field of dishwasher technology, specifically to a dishwasher and a sterilization control method for a dishwasher. Background Technology

[0002] A dishwasher is a modern household appliance designed for automatically cleaning various tableware such as bowls, plates, cups, and cutlery. Dishwashers typically have a sterilization function, and most dishwashers on the market currently use fixed-position UV sterilization. The UV lamps are fixed to the inner wall of the cavity; if more areas within the cavity need sterilization, additional UV lamps are required. Installing UV lamps in multiple locations throughout the cavity not only increases cost and manufacturing complexity, but also means that some hard-to-reach areas, especially around the drain, often harbor more bacteria. Therefore, there is an urgent need for a dishwasher that can achieve full-cavity sterilization at a lower cost. Summary of the Invention

[0003] To address the aforementioned technical problems, this application proposes a dishwasher and a sterilization control method for the dishwasher.

[0004] On the one hand, embodiments of this application provide a dishwasher, including a dishwasher cavity, an ultraviolet sterilization device, and a drive module;

[0005] The ultraviolet sterilization device is movably installed on the inner side of the dishwasher cavity;

[0006] The drive module is located on the outside of the dishwasher cavity and is connected to the ultraviolet sterilization device; the drive module is used to drive the ultraviolet sterilization device to move so that the ultraviolet sterilization device can sterilize the dishwasher.

[0007] Furthermore, the ultraviolet sterilization device includes a telescopic component, a rotating device, an ultraviolet lamp, and a fixing plate;

[0008] A fixing plate is set on the upper surface of the telescopic assembly, and one end of the fixing plate is fixed to the inner surface of the dishwasher cavity; the rotating device is connected to the lower surface of the telescopic assembly; the ultraviolet lamp is set on the side of the telescopic assembly away from the dishwasher cavity.

[0009] The drive module is electrically connected to the rotating device and the ultraviolet lamp respectively; and under the drive of the drive module, the rotating device rotates, which in turn drives the telescopic component and the ultraviolet lamp to move in a straight line.

[0010] Furthermore, the telescopic assembly includes a first telescopic plate, a second telescopic plate, and a UV lamp connection wire;

[0011] The first telescopic plate is located on the side close to the dishwasher cavity, one end of the second telescopic plate is connected to the first telescopic plate, and the ultraviolet lamp is located at the other end of the second telescopic plate.

[0012] The UV lamp connection wires are electrically connected to the UV lamp and the driver module, and are located inside the telescopic assembly.

[0013] Furthermore, a preset number of limit switches are provided between the telescopic component and the fixed plate to determine the position of the telescopic component; the preset number of limit switches are electrically connected to the drive module.

[0014] The preset quantity is greater than or equal to 2.

[0015] Furthermore, in the direction of movement of the telescopic component, the length of the telescopic component is the first length, the length of the dishwasher cavity is the second length, and the length of the fixed plate is the third length;

[0016] The first length is any length between one-quarter and one-half of the second length;

[0017] The third length is any length between one-third and one-half of the second length, and is greater than or equal to the first length.

[0018] Furthermore, a drain outlet is provided at the bottom of the dishwasher cavity, and a drain outlet UV lamp is installed at the drain outlet.

[0019] Furthermore, a bacterial concentration sensor is installed inside the dishwasher cavity; an air inlet is installed on the dishwasher cavity, and the air inlet is located on the side away from the drain outlet.

[0020] Furthermore, a cabinet door is provided on one side of the dishwasher cavity, and the cabinet door is equipped with a door lock;

[0021] The dishwasher also includes an intelligent control system, which is electrically connected to the door lock, drive unit, and bacteria concentration sensor.

[0022] On the other hand, embodiments of this application also provide a sterilization control method for the above-mentioned dishwasher, the method comprising:

[0023] Determine the dishwasher's operating status and corresponding running time;

[0024] Based on the operating status and corresponding operating time, determine the initial position of the ultraviolet sterilization device when the dishwasher needs to enter the sterilization mode;

[0025] Based on the initial position, the control drive module operates, which in turn drives the ultraviolet sterilization device to move, thereby sterilizing the dishwasher cavity using the ultraviolet sterilization device.

[0026] Furthermore, the dishwasher also includes a UV lamp at the drain outlet and a bacteria concentration sensor. After determining the dishwasher's operating status and corresponding operating time, the method further includes:

[0027] Based on the operating status and corresponding operating time, determine the bacterial concentration detected by the bacterial concentration sensor when the dishwasher enters the sterilization mode;

[0028] When the bacterial concentration is greater than or equal to the preset bacterial concentration, the ultraviolet lamp at the drain outlet is turned on to sterilize the drain outlet.

[0029] This application provides a dishwasher, including a dishwasher cavity, an ultraviolet (UV) sterilization device, and a drive module. The UV sterilization device is movably disposed on the inner side of the dishwasher cavity. The drive module is disposed on the outer side of the dishwasher cavity and connected to the UV sterilization device. The drive module drives the UV sterilization device to move, thereby sterilizing the dishwasher. The dishwasher provided in this application can drive the UV lamp to move via the drive module, solving the problem that the fixed position of the UV lamp prevents full-cavity sterilization. This reduces the cost of the dishwasher, improves the cleanliness and hygiene standards of tableware, and brings more convenience and economic benefits to users. Attached Figure Description

[0030] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a dishwasher provided in an embodiment of this application.

[0032] Figure 2 This is a schematic flowchart of a sterilization control method for a dishwasher provided in an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the software control flow corresponding to a sterilization control method for a dishwasher provided in an embodiment of this application;

[0034] Figure 4 This is a schematic flowchart of a sterilization control method for the ultraviolet lamp at the drain outlet of a dishwasher provided in an embodiment of this application.

[0035] The corresponding reference numerals in the figure are as follows:

[0036] 1-Dishwasher cavity; 11-Drain outlet; 111-Drain outlet UV lamp; 12-Air inlet; 13-Bacterial concentration sensor; 14-Cabinet door; 141-Door lock;

[0037] 2-Ultraviolet sterilization device; 21-Telescopic assembly; 211-First telescopic plate; 212-Second telescopic plate; 213-Ultraviolet lamp connection wire; 22-Rotation device; 23-Ultraviolet lamp; 24-Fixing plate; 25-Limit switch;

[0038] 3-Driver module. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of the embodiments of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented in orders other than those illustrated or described herein. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this embodiment, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. In the description of this application, it should be understood that the terms "upper," "lower," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] When a numerical range is disclosed herein, the range is considered continuous and includes the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when the range refers to an integer, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges to which they are included. For example, a specified range from “1 to 10” should be considered to include any and all subranges between the minimum value 1 and the maximum value 10. Exemplary subranges of the range 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, etc.

[0042] Currently, most dishwashers on the market use a fixed irradiation location for UV sterilization. The UV lamp is fixed to the inner wall of the cavity. If more areas within the cavity need sterilization, additional UV lamps are needed. Installing UV lamps in multiple locations throughout the cavity not only increases cost and production difficulty, but also fails to sterilize some hard-to-reach areas. In existing technology, the fixed UV lamp method, because the effective sterilization range of UV light is only 5-10cm, cannot sterilize the entire cavity; it can only sterilize the area where the UV lamp is installed. Especially around the drain outlet, where it cannot be irradiated within the cavity, more bacteria often grow.

[0043] Based on this, embodiments of this application provide a dishwasher, such as Figure 1 As shown, the dishwasher includes a dishwasher cavity 1, an ultraviolet sterilization device 2, and a drive module 3;

[0044] The ultraviolet sterilization device 2 is movably installed on the inner side of the dishwasher cavity 1;

[0045] The drive module 3 is located on the outside of the dishwasher cavity 1 and is connected to the ultraviolet sterilization device 2. The drive module 3 is used to drive the ultraviolet sterilization device 2 to move so that the ultraviolet sterilization device 2 sterilizes the dishwasher.

[0046] For example, Figure 1 This is a schematic diagram of the structure of a dishwasher provided in an embodiment of this application. The dishwasher provided in this embodiment includes a dishwasher cavity 1, an ultraviolet sterilization device 2, and a drive module 3. Specifically, the dishwasher cavity 1 is open at the front. The ultraviolet sterilization device 2 is movably disposed on the inner side of the dishwasher cavity 1. Specifically, it can be disposed on the rear door corresponding to the front opening, or on any of the two sides adjacent to the front opening. The drive module 3 is disposed on the outer side of the dishwasher and connected to the ultraviolet sterilization device 2. It is used to drive the ultraviolet sterilization device 2 to move so that the ultraviolet sterilization device 2 sterilizes the dishwasher. Sterilization of various parts of the dishwasher can be achieved by moving the ultraviolet sterilization device 2.

[0047] Optionally, in order to reduce costs and optimize the driving effect of the drive module 3 on the ultraviolet sterilization device 2, the drive module 3 is set opposite to the ultraviolet sterilization device 2. That is, the ultraviolet sterilization device 2 is installed on any surface of the inner side of the dishwasher, and the drive module 3 is installed on the outer side of any surface on which the ultraviolet sterilization device 2 is installed, with the installation height being consistent with that of the ultraviolet sterilization device 2.

[0048] Optionally, to achieve better sterilization, the UV sterilization device 2 is installed at the middle of the two dish racks in the dishwasher cavity.

[0049] This application provides a dishwasher, including a dishwasher cavity 1, an ultraviolet sterilization device 2, and a drive module 3. The ultraviolet sterilization device 2 is movably disposed on the inner side of the dishwasher cavity 1. The drive module 3 is disposed on the outer side of the dishwasher cavity 1 and connected to the ultraviolet sterilization device 2. The drive module 3 is used to drive the ultraviolet sterilization device 2 to move, so that the ultraviolet sterilization device 2 sterilizes the dishwasher. The dishwasher provided by this application can drive the ultraviolet lamp 23 to move through the drive module 3, solving the problem that the fixed position of the ultraviolet lamp 23 prevents full cavity sterilization, reducing the cost of the dishwasher, improving the cleanliness and hygiene standards of tableware, and bringing more convenience and economic benefits to users.

[0050] In some alternative embodiments, the ultraviolet sterilization device 2 includes a telescopic component 21, a rotating device 22, an ultraviolet lamp 23, and a fixing plate 24;

[0051] A fixing plate 24 is disposed on the upper surface of the telescopic assembly 21, and one end of the fixing plate 24 is fixed to the inner surface of the dishwasher cavity 1; the rotating device 22 is connected to the lower surface of the telescopic assembly 21; and the ultraviolet lamp 23 is disposed on the side of the telescopic assembly 21 away from the dishwasher cavity 1.

[0052] The drive module 3 is electrically connected to the rotating device 22 and the ultraviolet lamp 23 respectively; and under the drive of the drive module 3, the rotating device 22 rotates and drives the telescopic component 21 and the ultraviolet lamp 23 to move linearly.

[0053] For example, such as Figure 1 As shown, the ultraviolet sterilization device 2 includes a telescopic component 21, a rotating device 22, an ultraviolet lamp 23, and a fixing plate 24.

[0054] Specifically, the fixing plate 24 is installed on the upper surface of the telescopic assembly 21, with one end fixed to the inner surface of the dishwasher cavity 1, serving to fix and limit the telescopic device. The rotating device 22 is connected to the lower surface of the telescopic assembly 21 and is used to rotate under the drive of the drive module 3, thereby driving the telescopic assembly 21 to move linearly. The ultraviolet lamp 23 is located at the front end of the telescopic assembly 21, that is, on the side of the telescopic assembly 21 away from the dishwasher cavity 1, for illumination and sterilization. The telescopic assembly 21 refers to a component that can make linear reciprocating motion under the drive of external force.

[0055] The connection relationship of the above components is as follows: the drive module 3 is electrically connected to the rotating device 22 and the ultraviolet lamp 23 respectively. Specifically, the drive module 3 has a built-in drive motor. Driven by the drive motor in the drive module 3, the rotating device 22 will rotate, thereby driving the telescopic component 21 and the ultraviolet lamp 23 set at the front end of the telescopic component 21 to move linearly back and forth, so as to achieve irradiation and sterilization of various positions in the dishwasher cavity 1.

[0056] Optionally, the rotating device 22 can be a lead screw, which is driven to rotate by a motor in the drive module 3, thereby driving the telescopic plate to move.

[0057] This embodiment of the application, by setting a rotating device 22 electrically connected to the drive module 3 in the ultraviolet sterilization device 2, enables the drive module 3 to drive the rotating device 22 to rotate, thereby driving the telescopic component 21 and the ultraviolet lamp 23 set at the front end of the telescopic component 21 to make linear movements. This allows the ultraviolet sterilization device 2 to sterilize all parts of the dishwasher cavity 1, solving the problem that the fixed position of the ultraviolet lamp 23 prevents the sterilization of the entire cavity. This reduces the cost of the dishwasher, not only improving the cleanliness and hygiene standards of tableware, but also bringing more convenience and economic benefits to users.

[0058] In some alternative embodiments, the telescopic assembly 21 includes a first telescopic plate 211, a second telescopic plate 212, and an ultraviolet lamp connecting wire 213;

[0059] The first telescopic plate 211 is located on one side near the dishwasher cavity 1, one end of the second telescopic plate 212 is connected to the first telescopic plate 211, and the ultraviolet lamp 23 is located at the other end of the second telescopic plate 212.

[0060] The UV lamp connection wire 213 is electrically connected to the UV lamp 23 and the drive module 3 respectively, and is located inside the telescopic component 21.

[0061] For example, such as Figure 1 As shown, the telescopic assembly 21 includes a first telescopic plate 211, a second telescopic plate 212, and a UV lamp connecting wire 213. The UV lamp connecting wire 213 is disposed inside the telescopic assembly 21 and is used to drive and control the UV lamp 23. The wire is a telescopic structure and is electrically connected to the UV lamp 23 and the drive module 3, respectively. The first telescopic plate 211 is disposed on the side near the dishwasher cavity 1. One end of the second telescopic plate 212 is connected to the first telescopic plate 211, and the UV lamp 23 is disposed on the end of the second telescopic plate 212 away from the first telescopic plate 211.

[0062] It should be noted that the first telescopic plate 211 is only located on the side near the dishwasher cavity 1, but is not connected to the side of the dishwasher cavity 1, because it is movable.

[0063] In some optional embodiments, a preset number of limit switches 25 are also provided between the telescopic component 21 and the fixed plate 24 to determine the position of the telescopic component 21; the preset number of limit switches 25 are electrically connected to the drive module 3.

[0064] The preset quantity is greater than or equal to 2.

[0065] For example, such as Figure 1As shown, a limit switch 25 is provided on the lower surface of the fixed plate 24, that is, the limit switch 25 is set between the telescopic component 21 and the fixed plate 24 to determine the position of the telescopic component 21, thereby determining the position of the ultraviolet lamp 23; the limit device is connected to the drive module 3 at one point, and can transmit the position of the telescopic component 21 to the drive module 3, so that the drive module 3 can determine the rotation direction and angle of the rotating device 22, thereby realizing the control of the position of the telescopic component 21.

[0066] Specifically, the limit switch 25 includes at least a first limit switch and a second limit switch. The first limit switch is fixedly disposed at one end of the lower surface of the fixed plate 24, and the second limit switch is fixedly disposed at the other end of the lower surface of the fixed plate 24. That is, the position of the first limit switch is fixed, located below the fixed plate 24 and close to the dishwasher cavity 1, while the second limit switch is also fixedly disposed on the side of the fixed plate 24 away from the dishwasher cavity 1. However, because the position of the fixed plate 24 is variable, the position of the second limit switch in the dishwasher cavity 1 changes with the position of the fixed plate 24. For ease of description, in the following description, the end of the telescopic assembly 21 that is close to the dishwasher cavity 1 or that does not have the ultraviolet lamp 23 installed is referred to as the first end point, and the other end of the telescopic assembly 21 that has the ultraviolet lamp 23 installed is referred to as the second end point.

[0067] It should be noted that the preset quantity is determined based on the length of the fixed plate 24 and the telescopic component 21. The principle of determination is to ensure that the specific position of the telescopic component 21 can be determined when it is in different positions.

[0068] In some alternative embodiments, in the direction of movement of the telescopic component 21, the length of the telescopic component 21 is a first length, the length of the dishwasher cavity 1 is a second length, and the length of the fixing plate 24 is a third length.

[0069] The first length is any length between one-quarter and one-half of the second length;

[0070] The third length is any length between one-third and one-half of the second length, and is greater than or equal to the first length.

[0071] For example, in the direction of movement of the telescopic component 21, assuming that the length of the telescopic component 21 is a first length, the length of the dishwasher cavity 1 is a second length, and the length of the fixing plate 24 is a third length, then the first length is equal to any length between one-quarter and one-half of the second length; the third length is equal to any length between one-third and one-half of the second length, and is greater than or equal to the first length.

[0072] Specifically, the preset sterilization positions and the number of preset sterilization positions of the ultraviolet sterilization device 2 are determined based on the first length and the relationship between the first length and the second length. The number of preset sterilization positions is greater than or equal to two.

[0073] It should be noted that the number and position of the limit switches 25 are adjusted according to the length of the telescopic component 21 and the length of the fixed plate 24. The adjustment principle is: during the movement of the telescopic component 21, when the telescopic component 21 is at the last sterilization position, ensure that the second limit switch in the limit switches 25 can detect the first end point of the telescopic component 21. The sterilization position of the telescopic component 21 is determined based on the cavity length and the length of the telescopic component 21, using the length of the telescopic component 21 as the unit. For example, when the telescopic component 21 is one-third of the cavity length, the first sterilization position is one-third of the cavity length, and the second sterilization position is two-thirds of the cavity length. That is, the cavity length divided by the length of the telescopic component 21 gives the integer value of the number of sterilization positions. The specific positions are determined based on the length of the telescopic component 21 as the basic unit, thus ensuring the sterilization effect of the entire dishwasher cavity.

[0074] Specifically, the direction of movement of the telescopic component 21 refers to the direction parallel to the telescopic component 21, that is, the length of the telescopic component 21 is any length between one-quarter and one-half of the length of the cavity parallel to it.

[0075] The following are several specific embodiments to illustrate the above-mentioned length relationship, the number of limiting devices, and the method for determining the position of the corresponding telescopic component 21:

[0076] 1. When the first length is equal to one-third of the second length, the third length can be set to be equal to the first length, that is, the length of the telescopic component 21 is equal to the length of the fixed plate 24, and is equal to one-third of the length of the cavity in the direction parallel to the telescopic component 21. At this time, the preset quantity can be set to 2, that is, the first limit switch and the second limit switch mentioned above. The first limit switch is fixedly installed at one end of the lower surface of the fixed plate 24, and the second limit switch is fixedly installed at the other end of the lower surface of the fixed plate 24, that is, the position of the second limit switch is at one-third of the cavity.

[0077] At this time, the limit switch 25 determines the position of the telescopic component 21 as follows:

[0078] (1) When the first limit switch detects the first end of the telescopic component 21 and the second limit switch detects the second end of the telescopic component 21, the UV lamp 23 is determined to be one-third of the cavity in the direction of movement of the UV lamp 23, and the position of the UV lamp 23 is fed back to the drive module 3.

[0079] (2) When the first limit switch does not detect the telescopic component 21 and the second limit switch detects the first end of the telescopic component 21, it is determined that the ultraviolet lamp 23 is located at two-thirds of the cavity in the direction of movement of the ultraviolet lamp 23, and the position of the ultraviolet lamp 23 is fed back to the drive module 3.

[0080] (3) When the first limit switch does not detect the telescopic component 21, and the second limit switch detects the telescopic component 21 and the detected position of the telescopic component 21 is not the second endpoint, it is determined that the ultraviolet lamp 23 is located between one-third and two-thirds of the cavity in the direction of movement of the ultraviolet lamp 23, and the position of the ultraviolet lamp 23 is fed back to the drive module 3.

[0081] 2. When the first length is equal to one-quarter of the second length, the second length can be set to be greater than the first length. Specifically, the third length can be set to one-half of the second length. That is, the length of the telescopic component 21 is equal to one-quarter of the length of the cavity in the direction parallel to the telescopic component 21, and the length of the fixed plate 24 is equal to one-half of the length of the cavity in the direction parallel to the telescopic component 21. In this case, the preset quantity can be set to 3, including the first and second limit switches mentioned above, and also including a third limit switch. The first limit switch is fixedly installed at one end of the lower surface of the fixed plate 24, the second limit switch is fixedly installed at the other end of the lower surface of the fixed plate 24, and the third limit switch is installed on the lower surface of the fixed plate 24. The distance between the third limit switch and the first limit switch is equal to the distance between the third limit switch and the second limit switch. That is, the second limit switch is located at one-half of the cavity in the direction of movement of the ultraviolet lamp 23, and the third limit switch is located at one-quarter of the cavity.

[0082] At this time, the limit switch 25 determines the position of the telescopic component 21 as follows:

[0083] (1) When the first limit switch detects the first end of the telescopic component 21 and the third limit switch detects the second end of the telescopic component 21, the UV lamp 23 is determined to be at one-quarter of the cavity in the direction of movement of the UV lamp 23, and the position of the UV lamp 23 is fed back to the drive module 3.

[0084] (2) When the first limit switch does not detect the telescopic component 21, and the third limit switch detects the first end of the telescopic component 21 and the second limit switch detects the second end of the telescopic component 21, the UV lamp 23 is determined to be at half the position of the cavity in the direction of movement of the UV lamp 23, and the position of the UV lamp 23 is fed back to the drive module 3.

[0085] (3) When the first limit switch and the third limit switch do not detect the telescopic group, and the second limit switch detects the telescopic component 21 and the detected position of the telescopic component 21 is not the first end point and the second end point, at this time, it is determined that the ultraviolet lamp 23 is at one-half to three-quarters of the cavity in the direction of movement of the ultraviolet lamp 23, and the position of the ultraviolet lamp 23 is fed back to the drive module 3.

[0086] (4) When the first limit switch and the third limit switch do not detect the telescopic group, and the second limit switch detects the first end of the telescopic component 21, at this time, the UV lamp 23 is determined to be at three-quarters of the cavity in the direction of movement of the UV lamp 23, and the position of the UV lamp 23 is fed back to the drive module 3.

[0087] It should be noted that the above are only some specific implementations of the length between the telescopic component 21 and the fixed plate 24 and the preset number of limit switches 25. Other lengths and numbers of limit switches 25 within the length range can also be selected.

[0088] This embodiment of the application defines the specific structure of the telescopic component 21, sets a limit switch 25 below the fixed plate 24, and limits the length of the telescopic component 21, the length of the fixed plate 24, and the number of limit switches 25 to determine the specific position of the ultraviolet lamp 23 during movement. This allows the specific position of the ultraviolet lamp 23 to be fed back to the drive module 3, enabling the drive module 3 to control the movement direction of the telescopic component 21 based on the position of the ultraviolet lamp 23. This achieves the goal that the ultraviolet sterilization device 2 can sterilize all parts of the dishwasher cavity 1, solving the problem that the fixed position of the ultraviolet lamp 23 prevents the sterilization of the entire cavity. This reduces the cost of the dishwasher, improves the cleanliness and hygiene standards of tableware, and brings more convenience and economic benefits to users.

[0089] In some alternative embodiments, a drain outlet 11 is provided at the bottom of the dishwasher cavity 1, and a drain outlet ultraviolet lamp 111 is installed at the drain outlet 11.

[0090] For example, such as Figure 1 As shown, a drain outlet 11 is provided at the bottom of the dishwasher cavity 1. In order to ensure the sterilization effect of the dishwasher and prevent the ultraviolet sterilization device 2 from failing to sterilize the drain outlet 11 and causing more bacteria to grow, an ultraviolet lamp 23 is installed at the drain outlet 11 for sterilization.

[0091] This embodiment of the application can effectively solve the problem of bacterial growth in the drain outlet 11 by installing an ultraviolet lamp 23 inside the dishwasher drain outlet 11, thereby enhancing the sterilization capability of the entire cavity of the dishwasher and providing users with a more hygienic and safe washing experience.

[0092] In some alternative embodiments, a bacterial concentration sensor 13 is provided inside the dishwasher cavity 1; an air inlet 12 is provided on the dishwasher cavity 1, and the air inlet 12 is located on the side away from the drain outlet 11.

[0093] In some alternative embodiments, a cabinet door 14 is provided on one side of the dishwasher cavity 1, and the cabinet door 14 is provided with a door lock 141;

[0094] The dishwasher also includes an intelligent control system, which is electrically connected to the door lock 141, the drive module 3, and the bacteria concentration sensor 13.

[0095] For example, such as Figure 1 As shown, in order to confirm the sterilization effect at various locations within the dishwasher cavity 1, a bacterial concentration sensor 13 is also installed inside the dishwasher cavity 1. The bacterial concentration sensor 13 is used to detect the bacterial concentration within the cavity and determines whether the ultraviolet sterilization device 2 or the ultraviolet lamp 111 at the drain outlet needs to be turned on by electrically connecting it to the drive module 3 and the ultraviolet lamp 111 at the drain outlet, respectively.

[0096] The dishwasher is also equipped with a door lock 141 to lock the dishwasher so that it cannot be opened while it is in operation.

[0097] Specifically, the dishwasher operates based on an intelligent control system, which is electrically connected to the door lock 141, drive module 3, and bacterial concentration sensor 13. The intelligent control logic of the whole machine is as follows: if the sterilization function needs to be started, the intelligent control system determines that the ultraviolet lamp 23 can work based on the overall status of the dishwasher and the status of the door lock 141. The intelligent control system automatically sets the sterilization settings and sterilization function. After completing the first round of sterilization, the bacterial concentration sensor 13 detects the bacterial concentration and determines whether sterilization needs to continue based on the detection results. If the sterilization function of the drain outlet 11 needs to be activated, the bacterial concentration sensor 13 detects the bacterial concentration and determines whether sterilization of the drain outlet 11 is required based on the detection results.

[0098] It should be noted that when the sterilization function is activated, the sterilization duration can be set automatically by the intelligent control system based on the detection results of the bacterial concentration sensor 13, or it can be set manually by the user.

[0099] The dishwasher provided in this application embodiment controls the sterilization function of the dishwasher by setting an intelligent control system, and intelligently sets the sterilization time and whether to turn on the ultraviolet lamp 111 at the drain outlet for sterilization based on the detection results of the bacterial concentration sensor 13. This realizes intelligent control of the dishwasher sterilization. During the sterilization stage, the drive module 3 controls the telescopic component 21 to drive the ultraviolet lamp 23 to perform linear reciprocating motion, irradiating and sterilizing at different positions. The ultraviolet lamp 111 at the drain outlet works in conjunction with this. Finally, air is introduced through the air inlet 12, which can fill the entire cavity with sterilized air, inhibit bacterial growth, and thus achieve the effect of sterilization of the entire cavity.

[0100] On the other hand, such as Figure 2 As shown in the embodiments of this application, a sterilization control method for the above-mentioned dishwasher is also provided, the method comprising:

[0101] S10: Determine the dishwasher's operating status and corresponding operating time.

[0102] For example, before sterilizing, the dishwasher will automatically determine its current operating status and corresponding running time. The purpose of determining the operating status and running time is to decide whether sterilization is necessary.

[0103] Optionally, the operating status includes washing status, storage status, sterilization status, and standby status. Washing status refers to the dishwasher washing the dishes inside. Storage status refers to the dishwasher maintaining the cleanliness and hygiene of the dishes after completing the washing and drying cycles, allowing for long-term storage. Sterilization status refers to the dishwasher sterilizing the dishes inside. Standby status refers to the dishwasher not starting any programs and waiting for user input.

[0104] S20: Based on the operating status and corresponding operating time, determine the initial position of the ultraviolet sterilization device 2 when the dishwasher enters the sterilization mode.

[0105] For example, the dishwasher will determine whether sterilization is required based on the current operating status and the corresponding operating time. Specifically, when the dishwasher is in storage mode and the operating time corresponding to the storage mode is greater than or equal to the preset time, and when it is determined that the dishwasher door lock 141 is in the closed state, it is determined that the dishwasher needs to enter the sterilization mode.

[0106] When the dishwasher does need to enter the sterilization mode, the initial position of the ultraviolet sterilization device 2 is determined. Specifically, the ultraviolet sterilization device 2 includes a telescopic component 21, a rotating device 22, an ultraviolet lamp 23, and a fixing plate 24. The main purpose of determining the initial position of the ultraviolet sterilization device 2 is to determine the initial position of the ultraviolet lamp 23.

[0107] Optionally, the preset time can be determined based on the bacterial concentration inside the dishwasher cavity 1; the preset time can also be an empirical value, a default minimum sterilization time; the preset time can also be set by the user. Specifically, the preset time for each sterilization location can be the same or different.

[0108] S30: Based on the initial position, control the drive module 3 to run, thereby driving the ultraviolet sterilization device 2 to move, so as to sterilize the dishwasher cavity 1 using the ultraviolet sterilization device 2.

[0109] For example, once the initial position is determined, the drive module 3 is controlled to operate according to the initial position, thereby driving the ultraviolet sterilization device 2 to move from the initial position to the preset sterilization position, and the sterilization time is set, thereby realizing the sterilization of the entire cavity of the dishwasher using the ultraviolet sterilization device 2.

[0110] Specifically, there are two or more preset sterilization locations, meaning that the dishwasher requires at least two sterilization locations for each sterilization cycle, thus achieving a mobile sterilization function.

[0111] When the initial position is not the first sterilization position among the preset sterilization positions, the drive device is controlled to operate, causing it to drive the rotating device 22 in the ultraviolet sterilization device 2 to operate, thereby driving the telescopic component 21 and the ultraviolet lamp 23 located at one end of the telescopic component 21 to move, so that the ultraviolet lamp 23 is located in the first sterilization position for sterilization for a first preset time; when sterilization in the first sterilization position is completed, the drive device is controlled to operate, causing the ultraviolet lamp 23 to move to the second sterilization position for sterilization for a second preset time; when sterilization in the second sterilization position is completed, the drive device is controlled to operate again to drive the ultraviolet lamp 23 to move, until sterilization in the second preset number of sterilization positions is completed.

[0112] A bacterial concentration sensor 13 is installed inside the dishwasher cavity 1. In the above method, after step S30, the method further includes:

[0113] Based on the bacterial concentration sensor 13 detecting the bacterial concentration in the cavity, when the bacterial concentration is greater than or equal to the first bacterial concentration threshold, sterilization is continued.

[0114] Specifically, after sterilization at all of the above-mentioned locations up to the second preset number of sterilization sites is completed, it does not mean that sterilization is finished. It is necessary to determine whether to perform another round of sterilization based on the detection results of the bacterial concentration sensor 13.

[0115] Among them, the bacterial concentration threshold is a concentration threshold in the dishwasher that meets hygiene standards, which can be specified or adjusted according to the actual situation or the current hygiene characteristics of the catering environment.

[0116] Optionally, if another round of sterilization is performed, the control method is the same as S10-S30, that is, the above steps are repeated.

[0117] Taking the telescopic component 21 as an example, where the length of the telescopic component 21 is equal to the length of the fixed plate 24 and equal to one-third of the cavity length, and the limit switch 25 includes a first limit switch and a second limit switch, in the direction of movement of the telescopic component 21, as follows: Figure 3 As shown, a specific embodiment of the corresponding software control logic is introduced to further illustrate the above method:

[0118] When the dishwasher is about to enter the sterilization mode, it checks whether the dishwasher door 14 is closed to determine the status of the door lock 141. If it is determined that the door lock 141 is not locked, the detection continues and sterilization is not performed.

[0119] When the door lock 141 is locked, i.e., the dishwasher door is closed, the limit switch 25 on the fixed plate 24 detects whether the telescopic component 21 is in the first position. The first position means that the ultraviolet lamp 23 is at one-third of the cavity. When the telescopic component 21 is in the first position, the ultraviolet lamp 23 is turned on to sterilize for a first set time. The first set time can be automatically set by the intelligent control system or set by the user. When the telescopic component 21 is not in the first position, the drive module 3 is controlled to drive the rotating device 22 to move the telescopic component 21 to the first position, and then the ultraviolet lamp 23 is turned on to perform sterilization.

[0120] After sterilization begins at the first position, the system continuously monitors whether the first set time has been completed. When the first set time has been completed, the system controls the drive module 3, which in turn drives the rotating device 22 to move the telescopic component 21 to the second position, which is two-thirds of the cavity. Then, the ultraviolet lamp 23 is turned on to sterilize, and the sterilization time is set to the second set time. The second set time can be automatically set by the intelligent control system or set by the user.

[0121] After sterilization begins at the second location, the system continuously monitors whether the second set time has been completed. Once the second set time has been completed, the system continues monitoring and determines whether further sterilization is necessary based on the results from the bacterial concentration sensor.

[0122] This application provides a sterilization control method for a dishwasher. The dishwasher provided in this application can determine whether to enter sterilization mode based on the dishwasher's operating status and running time. Then, based on the initial position of the ultraviolet sterilization device 2, it controls the drive module 3 to drive the ultraviolet lamp 23 to move, thus achieving intelligent control of dishwasher sterilization. This solves the problem of the fixed position of the ultraviolet lamp 23 preventing full-cavity sterilization, reduces the cost of the dishwasher, improves the cleanliness and hygiene standards of tableware, and brings more convenience and economic benefits to users.

[0123] In some alternative implementations, the dishwasher also includes a drain UV lamp 111 and a bacteria concentration sensor 13, such as Figure 4 As shown, after determining the dishwasher's operating status and corresponding operating time, the method further includes:

[0124] S201: Based on the operating status and corresponding operating time, determine the bacterial concentration detected by the bacterial concentration sensor 13 when the dishwasher enters the sterilization mode.

[0125] For example, the dishwasher will determine whether sterilization is required based on the current operating status and the corresponding running time. Specifically, when the dishwasher is in storage mode and the running time corresponding to the storage mode is greater than or equal to the preset time, it is determined that the dishwasher needs to enter the sterilization mode.

[0126] When the dishwasher does need to enter sterilization mode, determine the bacterial concentration detected by bacterial concentration sensor 13.

[0127] S301: When the bacterial concentration is greater than or equal to the preset bacterial concentration, turn on the ultraviolet lamp 111 at the drain outlet to sterilize the drain outlet 11.

[0128] For example, when the bacterial concentration is greater than or equal to a preset bacterial concentration, the ultraviolet lamp 111 at the drain outlet is turned on to sterilize the drain outlet 11. The preset bacterial concentration is a concentration threshold set in advance in the intelligent control system of the dishwasher. Sterilization of the drain outlet 11 is only required when the bacterial concentration is greater than or equal to the preset bacterial concentration.

[0129] Optionally, the sterilization time of the UV lamp 111 at the drain outlet can be set manually or automatically by the intelligent control system based on the difference between the bacterial concentration and the preset bacterial concentration.

[0130] It should be noted that the ultraviolet lamp 111 at the drain outlet does not necessarily need to be turned on every time sterilization is performed. It only needs to be turned on when the bacterial concentration is greater than or equal to the preset bacterial concentration. However, the ultraviolet sterilization device 2 will be turned on every time sterilization is performed.

[0131] This application embodiment determines whether to turn on the ultraviolet lamp at the drain outlet for sterilization by judging the relationship between the bacterial concentration and the preset bacterial concentration. The ultraviolet lamp at the drain outlet and the ultraviolet driving device are controlled by separate control methods or separate control logic, thereby realizing the on-demand activation of the drain outlet sterilization. This not only ensures the sterilization effect inside the dishwasher cavity but also reduces the sterilization cost of the dishwasher. It not only improves the cleanliness and hygiene standards of tableware but also brings more convenience and economic benefits to users.

[0132] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dishwasher, characterized in that, Includes the dishwasher cavity, ultraviolet sterilization device, and drive module; The ultraviolet sterilization device is movably disposed on the inner side of the dishwasher cavity; The drive module is located on the outside of the dishwasher cavity and is connected to the ultraviolet sterilization device; the drive module is used to drive the ultraviolet sterilization device to move so that the ultraviolet sterilization device sterilizes the dishwasher.

2. The dishwasher according to claim 1, characterized in that, The ultraviolet sterilization device includes a telescopic component, a rotating device, an ultraviolet lamp, and a fixing plate; The fixing plate is disposed on the upper surface of the telescopic assembly, and one end of the fixing plate is fixed to the inner surface of the dishwasher cavity; the rotating device is connected to the lower surface of the telescopic assembly; the ultraviolet lamp is disposed on the side of the telescopic assembly away from the dishwasher cavity. The drive module is electrically connected to the rotating device and the ultraviolet lamp respectively; and under the drive of the drive module, the rotating device rotates, and drives the telescopic component and the ultraviolet lamp to move in a straight line.

3. The dishwasher according to claim 2, characterized in that, The telescopic assembly includes a first telescopic plate, a second telescopic plate, and a UV lamp connection wire; The first telescopic plate is located on one side near the dishwasher cavity, one end of the second telescopic plate is connected to the first telescopic plate, and the ultraviolet lamp is located at the other end of the second telescopic plate; The ultraviolet lamp connection wire is electrically connected to the ultraviolet lamp and the drive module respectively, and is located inside the telescopic component.

4. The dishwasher according to claim 2, characterized in that, A preset number of limit switches are also provided between the telescopic component and the fixed plate to determine the position of the telescopic component; the preset number of limit switches are electrically connected to the drive module. The preset quantity is greater than or equal to 2.

5. The dishwasher according to claim 2, characterized in that, In the direction of movement of the telescopic component, the length of the telescopic component is a first length, the length of the dishwasher cavity is a second length, and the length of the fixing plate is a third length; The first length is any length between one-quarter and one-half of the second length; The third length is any length between one-third and one-half of the second length, and is greater than or equal to the first length.

6. The dishwasher according to claim 1, characterized in that, The bottom of the dishwasher cavity is provided with a drain outlet, and a drain outlet ultraviolet lamp is installed at the drain outlet.

7. The dishwasher according to claim 6, characterized in that, A bacterial concentration sensor is installed inside the dishwasher cavity; an air inlet is provided on the dishwasher cavity, and the air inlet is located on the side away from the drain outlet.

8. The dishwasher according to claim 7, characterized in that, A cabinet door is provided on one side of the dishwasher cavity, and the cabinet door is equipped with a door lock; The dishwasher also includes an intelligent control system, which is electrically connected to the door lock, the drive unit, and the bacterial concentration sensor.

9. A sterilization control method for a dishwasher as described in any one of claims 1-8, characterized in that, The method includes: Determine the operating status of the dishwasher and the corresponding operating time; Based on the operating status and the corresponding operating time, when it is determined that the dishwasher needs to enter the sterilization mode, the initial position of the ultraviolet sterilization device is determined; Based on the initial position, the control drive module operates, thereby driving the ultraviolet sterilization device to move, so as to sterilize the dishwasher cavity using the ultraviolet sterilization device.

10. The sterilization control method according to claim 9, characterized in that, The dishwasher also includes a drain outlet ultraviolet lamp and a bacterial concentration sensor. After determining the operating status of the dishwasher and the corresponding operating time, the method further includes: Based on the operating status and the corresponding operating time, when the dishwasher enters the sterilization mode, the bacterial concentration detected by the bacterial concentration sensor is determined. When the bacterial concentration is greater than or equal to the preset bacterial concentration, the ultraviolet lamp at the drain outlet is turned on to sterilize the drain outlet.

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