A drawer-type dishwasher and its control method

Abstract

The present invention discloses a drawer - type dishwasher and its control method. Among them, the drawer - type dishwasher includes a housing assembly with an opening on one side, a drawer assembly, a water - scraping assembly, and a top cover. The drawer assembly is located inside the housing assembly and moves back and forth along the opening direction on one side. The top cover is located at the top of the housing assembly. The water - scraping assembly is fixed on the top cover and is used to scrape the water on the inner surface of the top cover. When the dishwasher is in a work pause or the dishwashing is completed, the water - scraping assembly works. After the water on the lower surface of the top cover is cleaned up, the drawer assembly can be taken out. In this way, it is avoided that the water on the lower surface of the top cover directly drips into the housing assembly after the drawer assembly is taken out due to the water not being cleaned, and it is also avoided that the housing assembly is oxidized, corroded, and rusted due to long - term moisture, thus improving the service life of the dishwasher.

Description

Technical Field

[0001] The present invention belongs to the technical field of dishwashers, and particularly relates to a drawer-type dishwasher and a control method thereof. Background Art

[0002] Traditional drawer-type dishwashers generally include a drawer assembly, a housing, and a top cover. The drawer assembly is disposed within the housing and can move back and forth. The inner container within the drawer is mainly used to hold the dishes to be washed. The top cover is disposed above the inner container, and the top cover can move under the action of a traction motor; its working principle is as follows: First, the traction motor pulls the top cover downward until a sealed space is formed between the top cover and the inner container. Then, the spray arm disposed at the bottom of the inner container starts to work, and the water it sprays will extend to the inner surface of the top cover. Thus, the following problems exist:

[0003] When pausing midway or when the dishwashing is finished and the drawer is opened, the water on the top cover will flow into the housing. Generally, the housing of the dishwasher is made of metal material. When water droplets fall inside the housing, over time, it will cause oxidation corrosion and rust on the bottom of the housing due to water.

[0004] At the same time, the water leakage alarm trigger device of the dishwasher is also disposed at the bottom of the housing. Generally, the trigger device is in the form of two probe inductions or a float floating up to trigger the closing and conduction of a micro switch. When water accumulates and flows to the position of the water leakage trigger device for a long time, it will directly trigger the conduction of the dishwasher probe or the float floating up to make the micro switch closed, thereby causing the dishwasher to alarm due to the water dripping problem, resulting in the dishwasher being unable to be used normally.

[0005] On the other hand, there are many electrical components installed inside the housing. If water droplets fall on the electrical components at this time, it is very easy to cause the electrical components to short-circuit due to water and trip, and even cause a fire, bringing hidden dangers of major safety accidents. Summary of the Invention

[0006] In view of this, the present invention provides a drawer-type dishwasher, which removes the water on the top cover by adding a water scraping component, avoiding the water on the top cover falling inside the housing component after the drawer component is opened and affecting the performance of the dishwasher.

[0007] Another object of the present invention is to provide a control method for a drawer-type dishwasher.

[0008] The technical solution adopted by the present invention is as follows:

[0009] A drawer-type dishwasher includes a housing component with openings on one side and the top, a drawer component, a water scraping component, and a top cover. The drawer component is located within the housing component and moves back and forth along the opening direction on one side. The top cover is located at the top of the housing component, and the water scraping component is fixed on the top cover for scraping the water on the inner surface of the top cover.

[0010] Preferably, the wiper assembly includes a motor, a wiper strip, and a fixing strip. The fixing strip is fixed on the rotating shaft of the motor, the wiper strip is arranged on the fixing strip, and the upper surface of the wiper strip contacts the lower surface of the top cover.

[0011] Preferably, the fixing strip includes a fixing strip body, a groove, and a reinforcing wall. The groove is opened on one side of the fixing strip body for fixing the wiper strip, and the reinforcing wall extends from the other side of the fixing strip body.

[0012] Preferably, the wiper strip includes a wiper strip body clamped in the groove. One side of the wiper strip body extends an extension wall, and the extension wall is recessed inward to form a concave surface for facilitating the deformation of the extension wall.

[0013] Preferably, the wiper assembly further includes a sealing ring sleeved on the rotating shaft of the motor. The sealing ring is located between the top cover and the motor, and a flange surface for preventing water from entering the interior of the motor is provided at one end of the sealing ring.

[0014] Preferably, when installing the wiper assembly, first sleeve the sealing ring on the rotor of the motor, pass the rotor through the through hole of the top cover, then fix the motor and the top cover with screws, then insert the wiper strip body into the groove, and finally tighten the fixing strip and the motor by threads.

[0015] Preferably, the material of the flange surface is an elastomer.

[0016] Preferably, the wiper strip is a long strip elastomer with a T-shaped cross-section, and its upper surface is in interference fit with the lower surface of the top cover.

[0017] Preferably, the wiper strip and the fixing strip are integrally formed by injection molding.

[0018] Preferably, the housing assembly includes a housing, a guide rail, a traction motor, and a pull plate. The guide rail is fixed inside the housing for the sliding of the drawer assembly. The pull plate is arranged inside the housing and connected to the top cover. The traction motor is connected to the pull plate; when the traction motor works, the top cover is driven to move through the pull plate.

[0019] A control method for a drawer-type dishwasher, which is applied to the above-mentioned drawer-type dishwasher, specifically:

[0020] S1. When the dishwasher pauses working or the dishwashing is finished, start the wiper assembly to wipe water.

[0021] S2. Judge whether the water wiping is completed, and control the working state of the housing assembly according to the judgment result. When judging whether the water wiping is completed, specifically:

[0022] The motor rotates forward for a first fixed time and reverses for a second fixed time. If the forward rotation and reverse rotation alternate at least once, it is determined that the water scraping is completed.

[0023] Preferably, the durations of the first fixed time and the second fixed time both depend on the capacity of the inner tank.

[0024] Preferably, in S2, the working state of the housing assembly 1 is controlled according to the judgment structure, specifically:

[0025] When the water scraping is completed, the traction motor stops working; otherwise, the traction motor continues to work.

[0026] Compared with the prior art, when the present invention is used, when the dishwasher is in a work pause or the dishwashing is completed, the water scraping assembly works first. After the water on the lower surface of the top cover is cleaned, the drawer assembly can be taken out; in this way, it is avoided that the water on the lower surface of the top cover directly drips into the housing assembly after the drawer assembly is taken out due to the water not being cleaned, and it is avoided that the housing assembly is oxidized, corroded and rusted due to long-term humidity; at the same time, it is ensured that the water leakage alarm device of the dishwasher will not be activated due to dripping water from the top, affecting the normal use of the dishwasher; at the same time, it will not cause a safety accident due to short circuit of electrical components due to dripping water; and, the present invention has a simple structure, low cost and is easy to promote. Brief Description of the Drawings

[0027] Figure 1 is an exploded view of a drawer-type dishwasher provided by Embodiment 1 of the present invention;

[0028] Figure 2 is a cross-sectional view of a drawer-type dishwasher provided by Embodiment 1 of the present invention;

[0029] Figure 3a is a schematic structural view of a water scraping assembly in a drawer-type dishwasher provided by Embodiment 1 of the present invention;

[0030] Figure 3b is a schematic structural view of the water scraping assembly in a drawer-type dishwasher in another direction provided by Embodiment 1 of the present invention;

[0031] Figure 4a is a schematic structural view of a sealing ring in a drawer-type dishwasher provided by Embodiment 1 of the present invention;

[0032] Figure 4b is a schematic structural view of the sealing ring in a drawer-type dishwasher in another direction provided by Embodiment 1 of the present invention;

[0033] Figure 5a is a schematic structural view of a water scraping strip in a drawer-type dishwasher provided by Embodiment 1 of the present invention;

[0034] Figure 5bIt is a schematic structural view of a water scraping strip in another direction in the drawer - type dishwasher provided in Embodiment 1 of the present invention;

[0035] Figure 6a It is a schematic structural view of a fixing strip in the drawer - type dishwasher provided in Embodiment 1 of the present invention;

[0036] Figure 6b It is a schematic structural view of a fixing strip in another direction in the drawer - type dishwasher provided in Embodiment 1 of the present invention;

[0037] Figure 7a It is a schematic structural view of a motor in the drawer - type dishwasher provided in Embodiment 1 of the present invention;

[0038] Figure 7b It is a schematic structural view of a motor in another direction in the drawer - type dishwasher provided in Embodiment 1 of the present invention;

[0039] Figure 8 It is a flowchart of a control method of a drawer - type dishwasher provided in Embodiment 2 of the present invention.

[0040] Wherein: 1. housing assembly, 2. drawer assembly, 3. water scraping assembly, 4. top cover, 5. top plate, 6. rear cover plate, 11. outer shell, 12. guide rail, 13. traction motor, 14. pull plate, 21. door body, 22. inner container, 31. motor, 32. water scraping strip, 33. fixing strip, 34. sealing ring, 311. rotor, 312. mounting bracket, 321. water scraping strip body, 322. extension wall, 323. concave surface, 331. fixing strip body, 332. groove, 333. strengthening wall, 334. cylindrical shape, 341. flange surface. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] In the description of the present invention, it should be clear that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and does not mean that the indicated device or element must have a specific orientation or position. Therefore, it should not be construed as a limitation to the present invention.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Embodiment 1

[0045] Embodiment 1 of the present invention provides a drawer-type dishwasher, as Figure 1 shown, which includes a housing assembly 1 with an open side and top, a drawer assembly 2, a water scraping assembly 3, and a top cover 4. The drawer assembly 2 is located inside the housing assembly 1 and moves back and forth along the opening direction of one side. The top cover 4 is located at the top of the housing assembly 1. The water scraping assembly 3 is fixed on the top cover 4 for scraping the water on the inner surface of the top cover 4.

[0046] Specifically, the top and one side of the housing assembly 1 are open. The drawer assembly 2 is located at the side opening, and the top cover 4 is located at the top opening.

[0047] In this way, with the above structure, when the dishwasher is paused or the dishwashing is completed, the water scraping assembly 3 works first. After the water on the lower surface of the top cover 4 is cleaned, the drawer assembly 2 can be taken out.

[0048] Moreover, more specifically, during the cleaning process of the dishwasher, the drawer assembly 2 and the top cover 4 form a sealed space through a motor. At the moment when the cleaning is completed or paused, the motor is still in operation, and at this time, the drawer assembly 2 cannot be taken out. Only after the water scraping assembly 3 finishes working does the motor stop working, and only then can the drawer assembly be pulled out.

[0049] In this way, it is avoided that the water on the lower surface of the top cover 4 drips directly into the housing assembly 1 after the drawer assembly is taken out without being cleaned, and it is also avoided that the housing assembly 1 is oxidized, corroded, and rusted due to long-term moisture. At the same time, it also prevents electrical components from being short-circuited due to dripping water and causing safety accidents.

[0050] In a specific embodiment:

[0051] As Figure 2 、 Figure 3a 、 Figure 3b shown, the water scraping assembly 3 includes a motor 31, a water scraping strip 32, and a fixing strip 33. The fixing strip 33 is fixed on the rotating shaft of the motor 31. The water scraping strip 32 is arranged on the fixing strip 33, and the upper surface of the water scraping strip 32 contacts the lower surface of the top cover 4.

[0052] Specifically, both the wiper strip 31 and the fixing strip 33 are in a long strip structure, and their lengths are basically about half of the length direction of the top cover 4, and the motor 31 can rotate forward and backward;

[0053] In this way, when the above wiper assembly works, the motor 31 works. Since the fixing strip 33 is fixed on the rotating shaft of the motor 31, the motor drives the fixing strip 33 to work, and the fixing strip 33 drives the wiper strip 32 to work, realizing the removal of water on the inner surface of the top cover 4.

[0054] More specifically, as Figure 7a and 7b shown, the rotor 311 of the motor 31 passes through the through hole of the top cover 4, and the motor 31 is fixed on the mounting bracket 312.

[0055] In a specific embodiment:

[0056] As Figure 6a and 6b shown, the fixing strip 33 includes a fixing strip body 331, a groove 332 and a reinforcing wall 333. The groove 332 is opened on one side of the fixing strip body 331 for fixing the wiper strip 32, and the reinforcing wall 333 extends from the other side of the fixing strip body 331;

[0057] Among them, the setting of the reinforcing wall 333 can make the installation of the wiper strip 32 more firm and enhance the wiper effect of the wiper strip 32.

[0058] In addition, one end of the fixing strip 33 is in a cylindrical shape 334, and a thread matching the rotating shaft of the motor 31 is provided inside.

[0059] In a specific embodiment:

[0060] As Figure 5a and 5b shown, the wiper strip 32 includes a wiper strip body 321 clamped in the groove 332. One side of the wiper strip body 321 extends an extension wall 322, and an inner concave surface 323 for making the extension wall 322 easily deformable is formed by the inward depression of the extension wall 322;

[0061] And, the wiper strip 32 is a long strip elastic body, and its cross section is a T-shaped structure, and the material is rubber, silica gel or soft PVC, etc., and it can be installed in the groove 332;

[0062] Specifically, the wiper strip body 321 and the extension wall 322 form a wiper strip 32 in a "T" shape structure, which is in interference fit with the top cover 4;

[0063] At the same time, the inner concave surface 323 provided on the extension wall 322 can make the wiper strip 32 more easily deformed, avoiding affecting the performance of the motor 31 due to excessive friction with the top cover 4;

[0064] In this embodiment, the fixing strip 33 and the wiper strip 32 are assembled and connected. As the number of uses increases, in order to ensure the wiping effect, the fixing strip 33 and the wiper strip 32 can also be integrally formed by injection molding.

[0065] Such as Figure 4a and 4b As shown, the wiper assembly 3 further includes a sealing ring 34 sleeved on the rotating shaft of the motor 31. One end of the sealing ring 34 is provided with a flange surface 341 for preventing water from entering the interior of the motor 31.

[0066] In this way, the sealing ring 34 is sleeved on the rotating shaft of the motor 31 for installation. After installation, it is located between the top cover 4 and the motor 31, and its structure is a hollow cylinder. One end is provided with a flange surface 341. The material of the flange surface 341 is an elastomer, such as rubber or silica gel, etc., which can play a role in preventing water from entering the motor 31.

[0067] The upper surface of the wiper strip 31 is in interference fit with the lower surface of the top cover 4.

[0068] This dishwasher further includes a top plate 5, and the top plate 5 is located on the top cover 4.

[0069] In one of the embodiments, the housing assembly 1 includes a housing 11, a guide rail 12, a traction motor 13, and a pull plate 14. The guide rail 12 is fixed inside the housing 11 for the sliding of the drawer assembly 2. The pull plate 14 is arranged inside the housing 11 and is connected to the top cover 4. The traction motor 13 is connected to the pull plate 14; when the traction motor 13 works, it drives the top cover 4 to move through the pull plate 14.

[0070] In this way, with the above structure, when the drawer-type dishwasher provided in this embodiment works, the traction motor 14 works, pulls the pull plate 14, and the pull plate acts on the top cover 4 to form a sealed space between the top cover 4 and the drawer assembly 2, and the dishes to be washed are placed in this space.

[0071] In order to ensure that the top cover 4 does not tilt during the movement, two pull plates 14 and guide rails 12 are provided, and they are respectively located on both sides inside the housing 11, and the top cover 4 is fixed to the two pull plates 14.

[0072] The drawer assembly 2 includes a door body 21, an inner liner 22, and a spray arm. The door body 21 is arranged on one side of the inner liner 22. The other side of the inner liner 22 moves back and forth along the opening direction on one side of the housing assembly 1. The spray arm is located at the bottom of the inner liner 22.

[0073] In this way, during the downward movement of the top cover 4, after a sealed space is formed between the inner container 22 and the top cover 4, the spray arm located at the bottom of the inner container 22 sprays the cleaning liquid into the space through the spray holes provided at the bottom, so as to clean the dishes.

[0074] The dishwasher further includes a rear cover plate 6, and the rear cover plate 6 is arranged at the rear side of the housing assembly 1;

[0075] In this way, through the rear cover plate 6 and the top plate 5, the drawer-type dishwasher of this embodiment has higher integrity.

[0076] In addition, when installing the water scraping assembly 3 in this embodiment, first, the sealing ring 34 is sleeved on the rotor of the motor 31, the rotor is passed through the through hole of the top cover 4, and then the motor 31 is fixed to the top cover 4 with screws. After that, the water scraping strip body 321 is inserted into the groove 332, and finally the fixing strip 33 is screwed tightly with the motor 31 through threads.

[0077] Working process:

[0078] During cleaning: The traction motor 14 works, pulls the pull plate 14, and the pull plate acts on the top cover 4 to form a sealed space between the top cover 4 and the inner container 22. The dishes to be cleaned are placed in this space; then the spray arm located at the bottom of the inner container 22 sprays the cleaning liquid into the space through the spray holes provided at the bottom, so as to clean the dishes;

[0079] At the moment when the cleaning is completed or the cleaning is paused, the motor 31 works. Since the fixing strip 33 is fixed on the rotating shaft of the motor 31, the motor drives the fixing strip 33 to work, and the fixing strip 33 drives the water scraping strip 32 to work, so as to remove the water on the inner surface of the top cover 4; it should be noted that: at the moment when the cleaning is completed or the cleaning is paused, the traction motor 14 is still in a working state, and at this time, the drawer assembly 2 cannot be taken out. Only after the water scraping assembly 3 finishes working, does this motor stop working, and only then can the drawer assembly be pulled out;

[0080] In addition, regarding the working time of the water scraping assembly 3, it can be limited according to the capacity of the inner container 22 and the number of the dishes to be cleaned currently.

[0081] Before the top cover is separated from the inner container in this embodiment, the motor drives the wiper strip to rotate. The wiper strip is in interference fit with the top cover, and the top cover is vertically arranged above the inner container. During the process of the wiper strip wiping water, the dripping water on the top cover is under the centripetal driving force of the wiper strip and the water droplets gather together and flow back into the inner container under the action of their own gravity, without directly dripping inside the outer shell, resulting in oxidation corrosion and rusting of the outer shell due to moisture; at the same time, it also ensures that the water leakage alarm device will not generate alarm failures due to the dripping water on the top cover, affecting the normal use of the dishwasher; nor will it cause short circuits of electrical components due to the dripping water on the top cover, and then trigger safety accidents such as tripping and fire, ensuring the use performance and personal safety of the dishwasher.

[0082] Embodiment 2

[0083] Embodiment 2 of the present invention provides a control method for a drawer-type dishwasher, as Figure 8 shown, which applies a drawer-type dishwasher described in Embodiment 1, and specifically includes the following steps:

[0084] S1, when the dishwasher pauses or finishes washing, start the wiper assembly 3 to wipe water;

[0085] S2, determine whether the water wiping is completed, and control the working state of the housing assembly 1 according to the judgment result.

[0086] And it should be noted that the drawer assembly can only be opened after the water wiping is completed.

[0087] Through this method, this embodiment avoids the water on the top cover dripping inside the housing assembly at the moment when the drawer is opened, resulting in oxidation corrosion and rusting of the housing due to moisture.

[0088] Specifically, in S2, to determine whether the water wiping is completed, specifically:

[0089] The motor 31 rotates forward for a first fixed time and reverses for a second fixed time, and the forward rotation and reverse rotation are at least alternated once, then it is determined that the water wiping is completed;

[0090] The durations of the first fixed time and the second fixed time both depend on the capacity of the inner container 22;

[0091] Specifically, the larger the capacity of the inner container 22, the longer the first fixed time and the second fixed time; because the inner container 22 with a larger capacity is generally higher in height, the more water may remain on the top cover 4.

[0092] In S2, to control the working state of the housing assembly 1 according to the judgment result, specifically:

[0093] When the water wiping is completed, the traction motor 13 stops working; otherwise, the traction motor 13 continues to work;

[0094] In this way, when the wiper operation is completed and the traction motor 13 stops working, the top cover 4 is separated from the drawer assembly 2 at this time, and the drawer assembly 2 can be freely opened.

[0095] In this embodiment, by adding a wiper operation process between the cleaning pause or cleaning end and the opening of the drawer assembly, it is avoided that the water on the top cover drips inside the housing assembly at the moment when the drawer is opened, which may cause oxidation corrosion and rust of the housing due to dampness, and the service life of the dishwasher is prolonged.

[0096] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A drawer - type dishwasher, characterized in that, it includes a housing assembly (1) with an opening on one side, a drawer assembly (2), a water - scraping assembly (3), and a top cover (4). The drawer assembly (2) is located inside the housing assembly (1) and can move back and forth along the opening direction on one side. The top cover (4) is located at the top of the housing assembly (1), and the water - scraping assembly (3) is fixed on the top cover (4) for scraping the water on the inner surface of the top cover (4); The water - scraping assembly (3) includes a motor (31), a water - scraping strip (32), and a fixing strip (33). The fixing strip (33) is fixed on the rotating shaft of the motor (31), the water - scraping strip (32) is arranged on the fixing strip (33), and the upper surface of the water - scraping strip (32) contacts the lower surface of the top cover (4); The rotor (311) of the motor (31) passes through the through - hole of the top cover (4), and the motor (31) is fixed on the mounting bracket (312) of the water - scraping assembly (3); One end of the fixing strip (33) is cylindrical (334), and a thread matching the rotating shaft of the motor (31) is arranged inside; The fixing strip (33) includes a fixing - strip body (331), a groove (332), and a reinforcing wall (333). The groove (332) is opened on one side of the fixing - strip body (331) for fixing the water - scraping strip (32), and the reinforcing wall (333) extends from the other side of the fixing - strip body (331).

2. The drawer - type dishwasher according to claim 1, characterized in that, the water - scraping strip (32) includes a water - scraping strip body (321) clamped in the groove (332). One side of the water - scraping strip body (321) extends an extension wall (322), and an inner concave surface (323) for making the extension wall (322) easily deformable is formed by the inward depression of the extension wall (322).

3. The drawer - type dishwasher according to claim 2, characterized in that, the water - scraping assembly (3) further includes a sealing ring (34) sleeved on the rotating shaft of the motor (31). The sealing ring (34) is located between the top cover (4) and the motor (31), and a flange surface (341) for preventing water from entering the interior of the motor (31) is arranged at one end of the sealing ring (34).

4. The drawer - type dishwasher according to claim 3, characterized in that, when installing the water - scraping assembly (3), first sleeve the sealing ring (34) on the rotor of the motor (31), pass the rotor through the through - hole of the top cover (4), then fix the motor (31) and the top cover (4) with screws. After that, insert the water - scraping strip body (321) into the groove (332), and finally tighten the fixing strip (33) and the motor (31) by threading.

5. The drawer - type dishwasher according to claim 3, characterized in that, the material of the flange surface (341) is an elastomer.

6. The drawer - type dishwasher according to claim 1, characterized in that, the water - scraping strip (32) is a long - strip elastomer, its cross - section is a T - shaped structure, and its upper surface is in interference fit with the lower surface of the top cover (4).

7. A drawer - type dishwasher according to claim 1 or 6, characterized in that, the wiper strip (32) and the fixing strip (33) are integrally formed by injection molding.

8. A drawer - type dishwasher according to claim 1, characterized in that, the housing assembly (1) includes an outer shell (11), a guide rail (12), a traction motor (13) and a pull plate (14). The guide rail (12) is fixed inside the outer shell (11) for the sliding of the drawer assembly (2). The pull plate (14) is arranged inside the outer shell (11) and connected to the top cover (4). The traction motor (13) is connected to the pull plate (14). When the traction motor (13) works, it drives the top cover (4) to move through the pull plate (14).

9. A control method for a drawer - type dishwasher, characterized in that, it applies to a drawer - type dishwasher according to any one of claims 1 - 8, and specifically includes the following steps: S1, when the dishwasher pauses working or the dishwashing is finished, start the water - scraping assembly (3) to scrape water; S2, judge whether the water - scraping is completed, and control the working state of the housing assembly (1) according to the judgment result. Specifically, judging whether the water - scraping is completed is as follows: the motor (31) rotates forward for a first fixed time and rotates backward for a second fixed time, and the forward rotation and the backward rotation are at least alternately performed once, then it is determined that the water - scraping is completed.

10. A control method for a drawer - type dishwasher according to claim 9, characterized in that, the durations of the first fixed time and the second fixed time both depend on the capacity of the inner tank (22).

11. A control method for a drawer - type dishwasher according to claim 9 or 10, characterized in that, in S2, controlling the working state of the housing assembly (1) according to the judgment result is specifically: when the water - scraping is completed, the traction motor (13) stops working; otherwise, the traction motor (13) continues to work.

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