Dish washing machine and control method

Abstract

The invention belongs to the field of washing, and particularly relates to a dish-washing machine and a control method. The invention aims to solve the problems that the spraying range of a dish-washing machine spraying arm rotating along the central axis is relatively fixed and is difficult to adjust according to actual conditions, and the washing time and the energy consumption of the dish-washing machine are easily increased. In order to achieve the purpose, the dish-washing machine comprises an inner container, a shelf and a spraying arm, the shelf and the spraying arm are both arranged in the inner container, the dish-washing machine further comprises a driving part, and the output end of the driving part is in transmission connection with the spraying arm; the driving part is arranged to be capable of driving the spraying arm to move along the same vertical plane in the inner container, so that the spraying arm can spray all positions, close to the same surface of the spraying arm, of the shelf; the dish washing machine further comprises a detection part, and the detection part is arranged to be capable of feeding back the condition in the inner container to the driving part so as to control movement of the spraying arm. The washing machine can achieve the effects of saving washing time and saving energy, and the washing effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of washing, and in particular relates to a dishwasher and a control method thereof. Background Art

[0002] With the improvement of living standards, people value the use of various household appliances to reduce the burden of housework so that they can have more time to deal with other matters. At present, people often need to wash dishes after meals. However, due to various factors, such as other things to deal with, people often fail to wash dishes in time after meals, so it is common to soak the bowls in water for a long time, which easily breeds various bacteria. Or although the bowls are not soaked in water for a long time, the residue in the bowl will dry up and adhere to the bowl. Even if you can wash the dishes in time after a meal, it is still a relatively dirty and tiring labor.

[0003] Dishwashers can be used to wash utensils such as dishes and chopsticks, as well as pots, range hood parts, etc. In addition, dishwashers can also be used to wash vegetables, etc., freeing people from the labor of manually washing dishes and chopsticks.

[0004] The spray arm of the dishwasher commonly used at present moves in a rotating manner along the central axis. However, in this movement mode, the spray range of the spray arm is relatively fixed, which is difficult to adjust according to actual conditions, and it is easy to increase the washing time and energy consumption of the dishwasher.

[0005] Accordingly, the art needs a new dishwasher and control method to solve the problem in the above-mentioned prior art that the spray range of the dishwasher spray arm that rotates along the central axis is relatively fixed, difficult to adjust according to actual conditions, and easily increases the washing time and energy consumption of the dishwasher. Summary of the invention

[0006] In view of the problem that the spray range of a dishwasher spray arm that rotates along a central axis is relatively fixed and difficult to adjust according to actual conditions, which can easily increase the washing time and energy consumption of the dishwasher, the present invention provides a dishwasher, comprising an inner tank, a rack and a spray arm, wherein the rack and the spray arm are both arranged inside the inner tank, the dishwasher also comprises a driving unit, and an output end of the driving unit is transmission-connected to the spray arm; the driving unit is configured to drive the spray arm to move along the same vertical plane in the inner tank, so that the spray arm can spray various positions of the rack close to the same surface of the spray arm; the dishwasher also comprises a detection unit, and the detection unit is configured to feed back the situation in the inner tank to the driving unit, so as to control the movement of the spray arm.

[0007] In a preferred technical solution of the above dishwasher, the detection unit includes a laundry distribution detection member, and the laundry distribution detection member is configured to feed back the distribution of the laundry on the rack to the driving unit to control the movement of the spray arm.

[0008] In the preferred technical solution of the above dishwasher, the laundry distribution detection element comprises an image collector, and the image collector is arranged in the inner tank; or,

[0009] The laundry distribution detection element comprises an infrared sensor, and the infrared sensor is arranged on the spray arm; and / or,

[0010] The laundry distribution detection element and the driving unit are both connected to the controller for communication.

[0011] In a preferred technical solution of the above dishwasher, the detection unit includes a water quality detection component, and the water quality detection component is configured to feed back the water quality in the inner tank to the driving unit to control the movement of the spray arm.

[0012] In the preferred technical solution of the above dishwasher, the water quality detection element is arranged in the inner tank; and / or,

[0013] The water quality detection element includes a turbidity sensor or an image collector; and / or,

[0014] The water quality detection element and the driving unit are both connected to the controller for communication.

[0015] In the preferred technical solution of the above dishwasher, the driving part comprises an electric push rod, the electric push rod is fixedly arranged, and the output end of the electric push rod is drivingly connected to the spray arm; or,

[0016] The driving part comprises a motor and a crank-connecting rod structure, wherein the motor is fixedly arranged, an output end of the motor is drivingly connected to one end of the crank-connecting rod structure, and the other end of the crank-connecting rod structure is hinged to the spray arm; or,

[0017] The driving part includes a screw and a motor, the screw includes a screw shaft and a nut, the nut is sleeved on the screw shaft through a threaded connection, the motor is fixedly arranged, the output end of the motor is drivingly connected to the screw shaft, and the spray arm is fixedly connected to the nut; and / or,

[0018] The dishwasher further comprises a slide rail, wherein the slide rail is fixedly arranged on the inner container, and the spray arm is slidably arranged on the slide rail.

[0019] In the preferred technical solution of the above dishwasher, the dishwasher further comprises a pump body, the output end of the pump body is connected to the input end of the spray arm, and the input end of the pump body is connected to an external liquid source and / or a liquid source in the inner tank; and / or,

[0020] The spray arm is arranged below the shelf; and / or,

[0021] A liquid storage box is also arranged at the inner bottom end of the inner container.

[0022] The present invention also provides a method for controlling a dishwasher, the dishwasher comprising an inner container, a rack and a spray arm, the rack and the spray arm are both arranged inside the inner container;

[0023] The dishwasher further comprises a driving unit, an output end of which is drivingly connected to the spray arm; the driving unit is configured to drive the spray arm to move along a same vertical plane in the inner tank, so that the spray arm can spray various positions of the rack close to a same surface of the spray arm;

[0024] The dishwasher further comprises a detection unit, which is configured to feed back the situation in the inner tank to the driving unit to control the movement of the spray arm;

[0025] The control method comprises the following steps:

[0026] Obtaining the situation inside the inner tank;

[0027] According to the situation in the inner tank, the movement and spraying of the spray arm are controlled.

[0028] In the preferred technical solution of the above dishwasher control method, the detection unit includes a laundry distribution detection element, and the control method further includes:

[0029] obtaining the distribution of the laundry in the rack through the laundry distribution detection element;

[0030] According to the obtained distribution of the laundry in the rack, the spray arm is controlled to move and spray the laundry;

[0031] or,

[0032] The detection unit includes a water quality detection element, and the control method further includes:

[0033] Acquiring the water quality in the inner tank through the water quality detection element;

[0034] According to the water quality in the inner tank, the spray arm is controlled to move and spray the laundry;

[0035] or,

[0036] The dishwasher further comprises a pump body, the output end of the pump body is connected to the input end of the spray arm, and the input end of the pump body is connected to an external liquid source and / or a liquid source in the inner tank;

[0037] The detection unit includes a water quality detection component;

[0038] The control method further comprises:

[0039] Acquiring the water quality in the inner tank through the water quality detection element;

[0040] According to the water quality in the inner tank, the spray arm is controlled to move and spray the laundry;

[0041] The spray intensity of the spray arm is controlled by the pump body according to the water quality in the inner tank.

[0042] In the preferred technical solution of the above dishwasher control method, the dishwasher further comprises a pump body, the output end of the pump body is connected to the input end of the spray arm, and the input end of the pump body is connected to an external liquid source and / or a liquid source in the inner tank;

[0043] The detection unit includes a water quality detection component;

[0044] The control method further comprises:

[0045] Controlling the spray arm to spray for a preset time;

[0046] Acquiring the water quality in the inner tank through the water quality detection element;

[0047] When the acquired water pollution degree does not reach the critical degree, the spray arm is controlled to move a preset distance, and the total moving distance X of the spray arm is acquired;

[0048] When X≥the preset total moving distance X0, the washing ends;

[0049] When X<preset total moving distance X0, the step of “obtaining the water quality in the inner tank through the water quality detection component” is performed again;

[0050] When the acquired water pollution degree exceeds the critical degree, the higher the water pollution degree, the higher the corresponding spray intensity of the spray arm, the spray arm is controlled to spray for a preset time, and the step of "obtaining the water quality in the inner tank through the water quality detection component" is executed again.

[0051] The technical solution of the present invention provides a dishwasher, which includes an inner tank, a shelf and a spray arm, wherein the shelf and the spray arm are both arranged inside the inner tank. The dishwasher also includes a driving unit, wherein an output end of the driving unit is transmission-connected to the spray arm; the driving unit is configured to drive the spray arm to move along the same vertical plane inside the inner tank, so that the spray arm can spray various positions of the shelf close to the same surface of the spray arm; the dishwasher also includes a detection unit, which is configured to feed back the situation inside the inner tank to the driving unit, so as to control the movement of the spray arm.

[0052] The dishwasher of the present invention can detect the situation in the inner tank through the detection part, such as the distribution of the objects to be washed, and control the spray arm to move to the position where the objects to be washed can be sprayed at a fixed point or sprayed in a small range reciprocatingly; the movement of the spray arm can also be controlled according to the water quality after washing, when the water quality at the current spray position of the spray arm decreases rapidly, the spray arm is made to continue to maintain the current spray position, and when the water quality at the current spray position of the spray arm does not change significantly, the spray arm is controlled to change the current spray position. Compared with the problem that the spray range of the dishwasher spray arm rotating along the central axis in the prior art is relatively fixed, which makes it difficult to adjust the spray range according to the actual situation, increases the washing time and energy consumption, the dishwasher of the present invention can wash the objects to be washed in a targeted manner, and the spray range is easy to adjust. The position without objects to be washed or the position of the objects to be washed that have been washed clean is no longer sprayed or the spray amount is relatively small, so that the position of the objects to be washed that need to be further washed can be sprayed intensively and effectively, thereby achieving the effect of saving washing time and energy saving, and the washing effect is relatively good. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The dishwasher and control method of the present invention are described below with reference to the accompanying drawings. In the accompanying drawings:

[0054] Figure 1 It is a structural schematic diagram of the dishwasher of the present invention;

[0055] Figure 2 A flow chart of the main steps of the control method of the present invention;

[0056] Figure 3 The present invention is a flow chart of a preferred embodiment of the control method.

[0057] List of reference numerals: 1 - liner, 2 - shelf, 3 - spray arm. DETAILED DESCRIPTION

[0058] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific applications. For example, although the specification describes the example of the distribution detection member for laundry including an image collector, the present invention can obviously adopt other similar means, such as the distribution detection member for laundry including an infrared sensor, etc., as long as the distribution detection member for laundry can detect the distribution of the laundry in the inner tank.

[0059] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", etc. 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 it can be indirectly connected through an intermediate medium, etc. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In order to solve the problem that the spray range of the dishwasher spray arm rotating along the central axis is relatively fixed and difficult to adjust according to actual conditions, which easily increases the washing time and energy consumption of the dishwasher, the dishwasher of the present invention is first described. Figure 1 As shown, the present invention provides a dishwasher, the dishwasher includes an inner tank 1, a shelf 2 and a spray arm 3, the shelf 2 and the spray arm 3 are both arranged inside the inner tank 1, in this embodiment, the spray arm 3 is arranged below the shelf 2 (alternatively, the spray arm 3 can also be arranged above the shelf 2, at the same time, at the upper and lower parts, at the side, etc.). The dishwasher also includes a driving unit (not shown in the figure, the driving unit includes an electric push rod, the electric push rod is fixedly arranged, and the output end of the electric push rod is drivingly connected to the spray arm 3), and the output end of the driving unit is drivingly connected to the spray arm 3; the driving unit is arranged to be able to drive the spray arm 3 to move along the same vertical plane in the inner tank 1 (it can be horizontal movement, or it can be moved along an oblique line or curve), so that the spray arm 3 can spray the various positions of the shelf 2 close to the same surface of the spray arm 3. The dishwasher also includes a slide rail, the slide rail is fixedly arranged on the inner tank 1, and the spray arm 3 is slidably arranged on the slide rail (not shown in the figure) to increase the stability of the movement of the spray arm 3 when sliding.

[0061] The dishwasher also includes a detection unit (not shown in the figure), which is configured to feed back the situation in the inner tank 1 to the driving unit to control the movement of the spray arm 3. Specifically, the detection unit includes a detection unit for the distribution of laundry, which is configured to feed back the distribution of laundry on the shelf 2 to the driving unit to control the movement of the spray arm 3. The detection unit for the distribution of laundry includes an image collector (which can be a camera), which is arranged in the inner tank 1 (the image collector can be arranged on the inner wall or outer wall of the inner tank 1, and the image in the inner tank 1 is obtained through a waterproof outer layer made of a transparent material such as glass or plastic). The detection unit for the distribution of laundry and the driving unit are both communicatively connected to a controller (the controller can be a controller that comes with the dishwasher, or it can be an external controller such as a server, a mobile phone, or a computer).

[0062] In summary, the dishwasher of the present invention can detect the situation in the inner tank 1 through the detection unit, such as the distribution of the objects to be washed, and control the spray arm 3 to move to a position where the objects to be washed can be washed to perform fixed-point spray washing or small-range reciprocating spray washing. Compared with the problem that the spray range of the dishwasher spray arm 3 rotating along the central axis in the prior art is relatively fixed, which makes it difficult to adjust the spray range according to actual conditions, increases washing time and energy consumption, the dishwasher of the present invention can wash the objects to be washed in a targeted manner, and the spray range is easy to adjust. The positions where there are no objects to be washed or the positions where the objects to be washed have been washed clean will no longer be sprayed or the spray amount is relatively small, so that the positions of the objects to be washed that need further washing can be concentratedly and effectively sprayed, thereby achieving the effect of saving washing time and energy, and the washing effect is relatively good.

[0063] It should be noted that the above embodiments are only used to illustrate the principles of the present invention and are not used to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structures through other replaceable implementations so that the present invention can be applied to more specific application scenarios. These do not deviate from the principles of the present invention and therefore will fall within the scope of protection of the present invention.

[0064] For example, in an alternative embodiment, the laundry distribution detection component including the image collector in the above embodiment before the structural adjustment may be replaced by:

[0065] The distribution detection member for the laundry includes an infrared sensor, which is arranged on the spray arm 3. Specifically, according to the different installation positions of the spray arm 3, the direction of the infrared ray emitted by the infrared sensor and the number of the infrared sensors are adjusted, so that the infrared ray emitted by the infrared sensor is directed toward the rack 2, and as the spray arm 3 moves, the distribution of the laundry on the rack 2 can be detected by the infrared sensor. These do not deviate from the principle of the present invention, and therefore will fall within the scope of protection of the present invention.

[0066] For example, in another alternative embodiment, the detection unit described in the above embodiment before the structural adjustment includes the laundry distribution detection element, which can be replaced by:

[0067] The detection unit includes a water quality detection component, which is configured to be able to feed back the water quality in the inner tank 1 to the driving unit to control the movement of the spray arm 3. The water quality detection component and the driving unit are both connected to the controller for communication. The water quality detection component is arranged in the inner tank 1. The water quality detection component can be a turbidity sensor to directly detect the water quality. The water quality detection component can also be an image collector, which obtains the color and turbidity of the water by image acquisition to judge the water quality.

[0068] This embodiment can control the movement of the spray arm 3 according to the water quality after washing. When the water quality at the current spray position of the spray arm 3 decreases rapidly, the spray arm 3 is made to continue to maintain the current spray position. When the water quality at the current spray position of the spray arm 3 does not change significantly, the spray arm 3 is controlled to change the current spray position. Compared with the problem that the spray range of the spray arm 3 of the dishwasher rotating along the central axis in the prior art is relatively fixed, which makes it difficult to adjust the spray range according to actual conditions, increases washing time and energy consumption, the dishwasher of the present invention can wash the objects to be washed in a targeted manner, and the spray range is easy to adjust. The positions where there are no objects to be washed or the positions where the objects to be washed have been washed clean are no longer sprayed or the spray amount is relatively small, so that the positions of the objects to be washed that need to be further washed can be concentratedly and effectively sprayed, thereby achieving the effect of saving washing time and energy saving, and the washing effect is relatively good.

[0069] When a liquid storage box is provided at the inner bottom of the inner container 1, the turbidity sensor can be provided in the liquid storage box. These do not deviate from the principle of the present invention, and thus will fall within the protection scope of the present invention.

[0070] For example, in another alternative implementation, the driving part including the electric push rod recorded in the above embodiment before the structural adjustment can also be replaced by:

[0071] The driving part includes a motor and a crank-connecting rod structure. The motor is fixedly arranged. The output end of the motor is drivingly connected to one end of the crank-connecting rod structure. The other end of the crank-connecting rod structure is hinged to the spray arm 3.

[0072] It can also be replaced by:

[0073] The driving part includes a screw and a motor, the screw includes a screw shaft and a nut, the nut is sleeved on the screw shaft through a threaded connection, the motor is fixedly arranged, the output end of the motor is drivingly connected to the screw shaft, and the spray arm 3 is fixedly connected to the nut. These do not deviate from the principle of the present invention, and therefore will fall within the protection scope of the present invention.

[0074] For example, in another alternative embodiment, the dishwasher described in the above embodiment before the structural adjustment may also include a slide rail, and the spray arm 3 may be slidably disposed on the slide rail, and may be replaced by:

[0075] The dishwasher is not provided with a slide rail. This embodiment can also achieve the purpose of saving washing time, energy saving and better washing effect. These do not deviate from the principle of the present invention, and therefore will fall within the scope of protection of the present invention.

[0076] For example, in another alternative implementation, based on the structure recorded in the above embodiment before the structural adjustment, further:

[0077] The dishwasher further includes a pump body (not shown in the figure), the output end of the pump body is connected to the input end of the spray arm 3, and the input end of the pump body is connected to an external liquid source and / or a liquid source in the inner tank 1. These do not deviate from the principle of the present invention and therefore fall within the scope of protection of the present invention.

[0078] The structure of the dishwasher of the present invention has been described above. Next, the control method of the dishwasher of the present invention will be described.

[0079] like Figure 2 As shown, Figure 2 The control method of the present invention mainly comprises the following steps:

[0080] S1. Obtain the situation inside the inner tank.

[0081] S2. Control the movement and spraying of the spray arm according to the situation inside the inner tank.

[0082] The dishwasher of the present invention can detect the situation in the inner tank 1 through the detection unit, and control the spray arm 3 to move to a position where the laundry can be washed to perform fixed-point spray washing or small-range reciprocating spray washing. The dishwasher of the present invention can wash the laundry in a targeted manner, and the spray range is easy to adjust. The position where there is no laundry or the position where the laundry has been washed clean is no longer sprayed or the spray amount is relatively small, so that the position of the laundry that needs further washing can be concentratedly and effectively sprayed, achieving the effect of saving washing time and energy, and the washing effect is relatively good.

[0083] In one embodiment, the detection unit includes a laundry distribution detection element, and the control method of the present invention further includes the following steps:

[0084] S101, obtaining the distribution of laundry in the rack through a laundry distribution detection component.

[0085] S102: According to the obtained distribution of the laundry in the rack, the spray arm is controlled to move and spray the laundry.

[0086] The present invention can obtain the distribution of the laundry in the rack through the laundry distribution detection part (image collector and infrared sensor, etc.) (the image collector is used before washing, and can directly obtain the distribution of the laundry in the rack. The infrared sensor requires the spray arm to move to obtain the distribution of the laundry in the rack, which can be obtained by moving the spray arm in a non-spraying state before washing, or after washing starts). According to the distribution of the laundry in the rack, the spray arm is controlled to move back and forth within the maximum distribution range of the laundry to spray, or the laundry can be washed in sequence, and the spray arm is controlled to complete the washing of the current position before moving to the next position. When it is necessary to pass through a position where the laundry is not set, the spray arm can be controlled to accelerate the passage and / or reduce the spray intensity.

[0087] In another embodiment, the detection unit includes a water quality detection element, and the control method of the present invention further includes the following steps:

[0088] S201, obtaining the water quality in the inner tank through a water quality detection component.

[0089] S202: According to the obtained water quality in the inner tank, the spray arm is controlled to move and spray the laundry.

[0090] The present invention can obtain the water quality in the inner tank through a water quality detection component (turbidity sensor or image collector, etc.). During the washing process, the water quality will change. After the spray arm sprays at a certain position for a preset time (the specific time can be set according to actual conditions), if the water quality does not change, it means that the objects to be washed have not been sprayed, or the objects to be washed have been washed clean, and then the spray arm can be moved to other positions to continue spraying and washing. If the water quality decreases faster after spraying at another position for a preset time, it means that the objects to be washed are relatively dirty, and the current position can continue to spray for a preset time until the water quality changes less. At this time, in order to avoid some stains from splashing onto other surrounding objects to be washed during spray washing, the spray arm can be controlled to move to the next spray position and spray.

[0091] In a specific preferred embodiment, the dishwasher further comprises a pump body, the output end of the pump body is connected to the input end of the spray arm 3, and the input end of the pump body is connected to an external liquid source and / or a liquid source in the inner tank. Figure 3 As shown, Figure 3 This is a flow chart of a preferred embodiment of the control method of the present invention, the control method comprising:

[0092] S301, controlling the spray arm to spray for a preset time.

[0093] In this step, after the spray arm sprays for a preset time, it can stop spraying or continue spraying.

[0094] S302, obtaining the water quality in the inner tank through a water quality detection component.

[0095] S303: When the acquired water pollution degree is level zero, the spray arm is controlled to move a preset distance, and the total moving distance X of the spray arm is acquired.

[0096] When the water pollution level does not reach the critical level, the water pollution level is zero. The preset distance can be set according to the actual situation.

[0097] In this step, the rotation angle of the motor can be obtained by setting an angle sensor or the like, and the distance moved by the spray arm each time can be obtained. The total movement distance of the spray arm can be obtained by summing the distances of each movement.

[0098] S304: When X≥preset total moving distance X0, the washing is finished.

[0099] In this step, the preset total moving distance X0 is adjusted based on the maximum distance that the spray arm can move at a single time. When more washing times are required, the value of the preset moving distance can be increased.

[0100] S305: When X<preset total moving distance X0, execute step S302 again.

[0101] S306. When the acquired water pollution degree is level one, the pump body is controlled to make the spray arm spray the laundry at level one spray intensity for a preset time, and step S302 is executed again.

[0102] When the obtained water pollution level exceeds the critical level, the higher the water pollution level (in already polluted water, the water pollution level is represented by levels, where level one represents the lowest water pollution level), the higher the corresponding spray intensity of the spray arm (the spray intensity is represented by levels, where level one represents the lowest spray intensity).

[0103] S307. When the acquired water pollution degree is level 2, the pump body is controlled to make the spray arm spray the laundry for a preset time according to the level 2 spray intensity, and step S302 is executed again.

[0104] S308. When the acquired water pollution degree is level three, the pump body is controlled to make the spray arm spray the laundry for a preset time according to the level three spray intensity, and step S302 is executed again.

[0105] S309. When the acquired water pollution degree is level 4, the pump body is controlled to make the spray arm spray the laundry for a preset time according to the level 4 spray intensity, and step S302 is executed again.

[0106] In steps S306-S309, the preset spraying time may be the same, or different values ​​may be set according to actual conditions.

[0107] This embodiment can achieve a better washing effect by controlling the spray intensity of the spray arm and can reduce a certain amount of washing time.

[0108] Regarding the level of water quality changes, it should be noted that although in the present embodiment, the water pollution degree and the spray intensity include levels one to four, in other alternative embodiments, the water pollution degree and the spray intensity may include level five, excluding level four, or excluding levels three to four, etc.

[0109] In the third preferred embodiment of the control method of the present invention, the distribution of laundry in the rack obtained by the laundry distribution detection element and the water quality in the inner tank obtained by the water quality detection element can be combined to achieve a better washing effect.

[0110] Those skilled in the art can understand that the above-mentioned dishwasher also includes some other well-known structures, such as a processor, a controller, a memory, etc., wherein the memory includes but is not limited to a random access memory, a flash memory, a read-only memory, a programmable read-only memory, a volatile memory, a non-volatile memory, a serial memory, a parallel memory or a register, etc., and the processor includes but is not limited to a CPLD / FPGA, a DSP, an ARM processor, a MIPS processor, etc. In order to unnecessarily obscure the embodiments of the present invention, these well-known structures are not shown in the drawings.

[0111] Of course, the above-mentioned replaceable embodiments, as well as the replaceable embodiments and the preferred embodiments, can be used in a cross-coordinated manner to combine new embodiments to be suitable for more specific application scenarios.

[0112] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A dishwasher, comprising an inner tank, a rack and a spray arm, wherein the rack and the spray arm are both arranged inside the inner tank, characterized in that: The dishwasher further comprises a driving unit, an output end of which is in driving connection with the spray arm; the driving unit is configured to drive the spray arm to move along a same vertical plane in the inner tank, so that the spray arm can spray various positions of the rack close to a same surface of the spray arm; The dishwasher further includes a detection unit, which is configured to feed back the situation in the inner tank to the driving unit to control the movement of the spray arm.

2. The dishwasher according to claim 1, characterized in that The detection unit includes a laundry distribution detection member, and the laundry distribution detection member is configured to feed back the distribution of the laundry on the rack to the driving unit to control the movement of the spray arm.

3. The dishwasher according to claim 2, characterized in that The laundry distribution detection element comprises an image collector, and the image collector is arranged in the inner tank; or, The laundry distribution detection element comprises an infrared sensor, and the infrared sensor is arranged on the spray arm; and / or, The laundry distribution detection element and the driving unit are both connected to the controller for communication.

4. The dishwasher according to claim 1, characterized in that The detection part includes a water quality detection component, and the water quality detection component is configured to feed back the water quality in the inner tank to the driving part to control the movement of the spray arm.

5. The dishwasher according to claim 4, characterized in that: The water quality detection element is arranged in the inner tank; and / or, The water quality detection element includes a turbidity sensor or an image collector; and / or, The water quality detection element and the driving unit are both connected to the controller for communication.

6. The dishwasher according to claim 1, characterized in that: The driving part comprises an electric push rod, the electric push rod is fixedly arranged, and the output end of the electric push rod is drivingly connected to the spray arm; or, The driving part comprises a motor and a crank-connecting rod structure, wherein the motor is fixedly arranged, an output end of the motor is drivingly connected to one end of the crank-connecting rod structure, and the other end of the crank-connecting rod structure is hinged to the spray arm; or, The driving part includes a screw and a motor, the screw includes a screw shaft and a nut, the nut is sleeved on the screw shaft through a threaded connection, the motor is fixedly arranged, the output end of the motor is drivingly connected to the screw shaft, and the spray arm is fixedly connected to the nut; and / or, The dishwasher further comprises a slide rail, wherein the slide rail is fixedly arranged on the inner container, and the spray arm is slidably arranged on the slide rail.

7. The dishwasher according to claim 1, characterized in that: The dishwasher further comprises a pump body, the output end of the pump body is connected to the input end of the spray arm, and the input end of the pump body is connected to an external liquid source and / or a liquid source in the inner tank; and / or, The spray arm is arranged below the shelf; and / or, A liquid storage box is also arranged at the inner bottom end of the inner container.

8. A dishwasher control method, characterized in that: The dishwasher comprises an inner container, a rack and a spray arm, wherein the rack and the spray arm are both arranged inside the inner container; The dishwasher further comprises a driving unit, an output end of which is drivingly connected to the spray arm; the driving unit is configured to drive the spray arm to move along a same vertical plane in the inner tank, so that the spray arm can spray various positions of the rack close to a same surface of the spray arm; The dishwasher further comprises a detection unit, which is configured to feed back the situation in the inner tank to the driving unit to control the movement of the spray arm; The control method comprises the following steps: Obtaining the situation inside the inner tank; The movement and spraying of the spray arm are controlled according to the acquired situation inside the inner tank.

9. The dishwasher control method according to claim 8, characterized in that: The detection unit includes a laundry distribution detection element, and the control method further includes: obtaining the distribution of the laundry in the rack through the laundry distribution detection element; According to the obtained distribution of the laundry in the rack, the spray arm is controlled to move and spray the laundry; or, The detection unit includes a water quality detection element, and the control method further includes: Acquiring the water quality in the inner tank through the water quality detection element; According to the water quality in the inner tank, the spray arm is controlled to move and spray the laundry; or, The dishwasher further comprises a pump body, the output end of the pump body is connected to the input end of the spray arm, and the input end of the pump body is connected to an external liquid source and / or a liquid source in the inner tank; The detection unit includes a water quality detection component; The control method further comprises: Acquiring the water quality in the inner tank through the water quality detection element; According to the water quality in the inner tank, the spray arm is controlled to move and spray the laundry; The spray intensity of the spray arm is controlled by the pump body according to the water quality in the inner tank.

10. The dishwasher control method according to claim 8, characterized in that: The dishwasher further comprises a pump body, the output end of the pump body is connected to the input end of the spray arm, and the input end of the pump body is connected to an external liquid source and / or a liquid source in the inner tank; The detection unit includes a water quality detection component; The control method further comprises: Controlling the spray arm to spray for a preset time; Acquiring the water quality in the inner tank through the water quality detection element; When the acquired water pollution degree does not reach the critical degree, the spray arm is controlled to move a preset distance, and the total moving distance X of the spray arm is acquired; When X≥the preset total moving distance X0, the washing ends; When X<preset total moving distance X0, the step of "obtaining the water quality in the inner tank through the water quality detection component" is performed again; When the acquired water pollution degree exceeds the critical degree, the higher the water pollution degree, the higher the corresponding spray intensity of the spray arm, the spray arm is controlled to spray for a preset time, and the step of "obtaining the water quality in the inner tank through the water quality detection component" is executed again.

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