Dish washing machine and heating washing control method thereof

Abstract

The invention relates to a dish-washing machine and a heating washing control method thereof, and the dish-washing machine comprises a dish-washing machine main body which is provided with a washing cavity; the spraying arm assembly is configured to spray washing water to the washing cavity; the water supply mechanism comprises a water suction pump and a heating pump, the water suction pump is used for supplying washing water to the washing cavity, and the heating pump is used for heating the washing water and supplying the washing water to the spraying arm assembly; the heating device is provided with a fluid channel, the water suction pump is communicated with the washing cavity through the fluid channel, and the heating device is used for heating the washing water in the fluid channel. According to the dish-washing machine, the water suction pump is arranged to communicate with the washing cavity, the independent heating device is arranged on the water path where the water suction pump communicates with the washing cavity, washing water can be rapidly heated to reach the high-temperature disinfection standard when flowing through the fluid channel, and therefore the problem that bubbles are generated when the water temperature heated by the water pump is too high is solved; and the heating pump, the water suction pump and the heating device are combined and matched for use, so that the heating efficiency can be effectively improved.

Description

Technical Field

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

[0002] The problem that the washing time of dishwashers is too long has always been criticized by users, and the heating link of the washing water occupies most of the washing time. Currently, the water temperature for high-temperature washing of dishwashers on the market is generally between 70-75°C. With the increasing demand for dishwasher disinfection in the domestic market, high-temperature disinfection is the most direct and acceptable disinfection method for users. The domestic disinfection standard requires that the water temperature reach 80°C for more than half an hour to meet the 5-star disinfection standard, making the water temperature requirement for dishwashers higher.

[0003] Currently, the traditional dishwasher cleaning and heating methods are generally divided into two types: the first is to integrate a heating module on the washing pump, and heat while pumping water when the washing pump is working; the second is to set a heating plate at the bottom of the inner tank to directly heat the water at the bottom of the inner tank. Compared with the second method, the first method can simplify the structure of the bottom of the inner tank and avoid potential safety hazards caused by users directly contacting the exposed heating plate. Therefore, the first method is the mainstream heating method on the market currently. However, due to the limited rated current of the dishwasher, it is difficult to shorten the heating time by increasing the power. In addition, when the water temperature of the washing pump is above 80°C, heating bubbles are likely to be generated in the impeller cavity, causing the washing pump to malfunction; while the second heating plate method has a greater risk of scalding users at high temperatures above 80°. Therefore, how to achieve efficient heating of the washing water has become a problem to be solved. Summary of the Invention

[0004] Based on this, in view of the problems that the current heating efficiency of dishwashers is low and heating bubbles are likely to be generated in the impeller cavity when the water temperature of the washing pump is too high, resulting in the malfunction of the washing pump and affecting the washing function of the dishwasher, it is necessary to provide a dishwasher and a heating and washing control method thereof.

[0005] A dishwasher, comprising: a dishwasher main body provided with a washing cavity; a spray arm assembly disposed on the dishwasher main body, the spray arm assembly being configured to spray washing water into the washing cavity; a water supply mechanism disposed on the dishwasher main body, the water supply mechanism including a suction pump and a heating pump, the suction pump being used to supply washing water to the washing cavity, and the heating pump being used to heat the washing water and supply it for use by the spray arm assembly; a heating device having a fluid passage, the suction pump being connected to the washing cavity through the fluid passage, and the heating device being used to heat the washing water flowing through the fluid passage; a control device disposed on the dishwasher main body, the control device being electrically connected to the suction pump, the heating pump, and the heating device respectively.

[0006] This application discloses a dishwasher. The water supply mechanism is provided with a heating pump connected to the spray arm assembly, which can heat the washing water while pumping water to improve the dirt removal ability of the washing water. At the same time, it is also provided with a suction pump connected to the washing cavity. By providing an independent heating device on the water path connecting the suction pump and the washing cavity, when the washing water flows through the fluid passage of the heating device, it is quickly heated to the high-temperature disinfection standard to achieve the high-temperature disinfection function of the dishwasher. Moreover, it not only solves the problem of bubbles generated when the water temperature of the suction pump and the heating pump is too high, but also can ensure that the water pressure supplied by the heating pump to the spray arm assembly is not affected by the diversion by supplying water through a separate suction pump. By adopting the above structure, the combined use of the heating pump, the suction pump, and the heating device can effectively improve the heating efficiency to shorten the heating time, thereby achieving the purpose of shortening the washing time. At the same time, it is also convenient for the dishwasher to control the outflow direction and heating temperature of the washing water according to the specific washing mode, which is beneficial to improving the washing efficiency of the dishwasher and saving energy.

[0007] In one embodiment, the water supply mechanism further includes a first pipeline, one end of the first pipeline is connected to the first pump outlet of the suction pump, the other end of the first pipeline is connected to the washing cavity, and the heating device is disposed on the first pipeline. The suction pump and the washing cavity are connected through the first pipeline. By providing the heating device on the first pipeline, the washing water can be heated by the heating device to meet the high-temperature disinfection standard when flowing through the fluid passage and then output to the washing cavity. At the same time, through the setting of the first pipeline, it is more convenient for installers to reasonably arrange components such as the water supply mechanism and the heating device, so as to improve the space utilization rate of the dishwasher.

[0008] In one embodiment, the water supply mechanism further includes a check valve. The check valve is disposed on the first pipeline, and is located at one end of the heating device close to the water suction pump. The check valve is configured to prevent the washing liquid entering the fluid passage from flowing back into the water suction pump. By providing the check valve, the washing water heated at a high temperature by the heating device can be prevented from flowing back into the water suction pump through the first pipeline, thereby avoiding the situation that heating bubbles are easily generated when the water temperature in the impeller cavity of the water suction pump is too high, resulting in the abnormal operation of the water suction pump, and ensuring that the water suction pump can pump water stably.

[0009] In one embodiment, the water supply mechanism further includes a water cup. The water cup is disposed on the dishwasher main body. The water cup is respectively communicated with the water suction pump and the heating pump. The heating pump is configured to transport the washing water in the water cup to the spray arm assembly, and the heating pump is configured to transport the washing water in the water cup to the washing cavity. By providing a water cup on the dishwasher main body for storing washing water, the first pump inlet of the water suction pump and the second pump inlet of the heating pump can be directly connected to the water cup respectively to pump the washing water in the water cup to the washing cavity and the spray arm assembly, etc. The provision of the water cup facilitates the user to perform operations such as water production, purification and filtration, and detergent dosing, etc., so as to cope with the temporary water cut-off situation.

[0010] In one embodiment, the water cup is located at the bottom of the dishwasher main body, and the water cup is communicated with the washing cavity. By adopting the above structure, the washing water entering the washing cavity will fall to the bottom of the washing cavity under the action of gravity after cleaning the tableware and further flow back into the water cup, thereby forming a water circulation system. Without using a large amount of water sources, the tableware can be thoroughly cleaned, while saving detergent and energy, and the operation is convenient, which is beneficial to improving the washing efficiency of the dishwasher.

[0011] In one embodiment, the water supply mechanism further includes a water inlet assembly. The water inlet assembly is communicated with an external water source. The water inlet assembly is configured to transport washing water to the water cup or the washing cavity. The water inlet assembly is electrically connected to the control device. By providing the water inlet assembly, when the user starts the washing program, the control device can control the water inlet assembly to be communicated with the external water source and input washing water into the water cup or the washing cavity, thereby simplifying the manual operation, making the dishwashing work more convenient, and at the same time realizing the quantitative control of the washing water, so as to facilitate the confirmation of the dosing parameter of the detergent, which is beneficial to improving the cleaning efficiency.

[0012] In one embodiment, the heating device includes a housing and a first heating component. The housing is provided with the fluid channel, and the first heating component is disposed on the housing assembly. The first heating component is electrically connected to the control device and is configured to heat the washing water in the fluid channel. The first heating component is provided on the housing, and the input end of the fluid channel of the housing is communicated with the first pump outlet of the water suction pump. After the washing water pumped by the water suction pump into the fluid channel is heated by the first heating component, the washing water will flow out from the output end of the fluid channel and be delivered to the washing chamber. Thus, an independent heating device can be formed on the water path of the dishwasher washing system, so that the washing water temperature in the high-temperature washing process can better meet the high-temperature disinfection standard without affecting the water suction pump.

[0013] In one embodiment, the housing includes a housing body, a first connecting column, and a second connecting column. The first connecting column and the second connecting column are respectively disposed at both ends of the housing body. The housing body is provided with a liquid passing cavity. The first connecting column is provided with a liquid inlet, and the second connecting column is provided with a liquid outlet. The liquid inlet, the liquid passing cavity, and the liquid outlet are sequentially communicated to form the fluid channel, and the first heating component is disposed on the housing body.

[0014] In one embodiment, the heating device further includes a fixing component disposed on the housing and configured to be adaptively installed on the outer wall of the dishwasher main body. By using the fixing component to fix the heating device on the dishwasher main body, the heating device can be set more stably, ensuring that the connections between the heating device, the dishwasher main body, and the water suction pump are not easily loosened.

[0015] In one embodiment, the fixing component includes an installation housing provided with an installation cavity. The housing is disposed on the installation housing, and at least part of the first heating component and at least part of the housing are located in the installation cavity. The installation wall of the installation housing is provided with positioning holes configured to be adaptively installed with the positioning pins on the dishwasher main body. By providing the installation housing, on the one hand, it is convenient to fix the heating device to the dishwasher main body through the installation housing, and on the other hand, the installation housing is provided with an installation cavity for installing the first heating component and the housing, so as to form a protective isolation for the first heating component and the housing. While protecting the first heating component and the housing, it can also reduce the heat dissipation loss caused by the first heating component. When the heating device is installed on the dishwasher main body, the positioning holes on the installation wall of the installation housing can be aligned and connected with the positioning pins on the dishwasher main body, thereby positioning the heating device, which is beneficial to the rapid installation of the heating device.

[0016] In one embodiment, the fixing component further includes a positioning plate. Part of the positioning plate is located in the installation cavity. The positioning plate is disposed opposite to the installation wall of the installation housing. One end of the positioning plate is provided on the end wall of the housing, and the other end of the positioning plate extends out of the installation cavity. The positioning plate is provided with a first connection hole, and the first connection hole is used to cooperate with a second connection hole on the dishwasher main body through a pin shaft to connect the positioning plate and the dishwasher main body. Connecting the first connection hole on the positioning plate and the second connection hole on the dishwasher main body by using a pin shaft can enable the positioning plate to cooperate with the installation housing to complete the rapid positioning and installation of the heating device, and ensure that the heating device is firmly installed and not prone to loosening and offset.

[0017] In one embodiment, an installation block is formed on the outer wall of the dishwasher main body, and the installation block is used for fitting installation with the fixing component. By providing the installation block, the installation block can cooperate with the fixing component to position and install the heating device, effectively improving the installation speed.

[0018] In one embodiment, the positioning pin is formed on the installation block.

[0019] In one embodiment, the second connection hole is provided on the installation block.

[0020] In one embodiment, the heating device further includes a thermostat. The temperature control component is disposed on the housing and / or the fixing component. The thermostat is electrically connected to the first heating component, and the thermostat is used to control the working temperature of the first heating component. Through the setting of the thermostat, it is convenient to perform constant temperature control on the heating temperature of the first heating component. When needed, the working temperature can be adjusted to quickly raise the water temperature of the washing water in the fluid channel, improving the heating efficiency.

[0021] In one embodiment, the heating device further includes a temperature sensor. The temperature sensor is disposed on the housing, and the temperature sensor is used to detect the liquid temperature in the fluid channel. The temperature sensor is electrically connected to the thermostat, and the thermostat is used to receive the temperature signal of the temperature sensor and control the operation of the first heating component according to the received temperature signal. Through the setting of the temperature sensor, the liquid temperature value in the fluid channel can be obtained in real time. Thus, with the cooperation of the temperature sensor and the thermostat, the water temperature in the fluid channel is ensured to be within the standard temperature value range. On the one hand, it effectively avoids the situation that the water temperature is lower than the temperature standard, resulting in insufficient time for the water temperature to reach the standard and affecting the disinfection effect; on the other hand, when the water temperature reaches a suitable value, it can be better controlled in a constant temperature state, avoiding the situation of excessive water temperature and causing energy waste, thereby improving the heating efficiency of the heating device.

[0022] In one embodiment, the heating device further includes a fuse, which is disposed on the housing and / or the fixing component. The fuse is used to cut off the connection between the first heating component and the power supply to achieve overcurrent protection of the circuit. The fuse serves as an overcurrent protection device and is used to disconnect the power supply of the entire device when the current of the first heating component is too large, so as to prevent damage to the electronic device.

[0023] In one embodiment, the heating pump includes a motor, a pump housing, an impeller, and a second heating component. The motor and the second heating component are respectively disposed on the pump housing. The pump housing has a pump chamber, a second pump inlet, and a second pump outlet communicating with the pump chamber. The impeller is installed in the pump chamber and is electrically connected to the motor. By adopting the above structure, when the motor drives the impeller to rotate, a driving force can be generated to drive the washing water to flow from the second pump inlet to the second pump outlet. At the same time, the second heating component is disposed on the pump housing to heat the water flow, and the decontamination ability of the washing water can be improved by raising the temperature.

[0024] The second aspect of the present application discloses a heating and washing control method for a dishwasher.

[0025] In one embodiment, the dishwasher includes a dishwasher main body, a spray arm assembly, a water supply mechanism, a heating device, and a control device disposed on the dishwasher main body. The spray arm assembly is configured to spray washing water into the washing cavity of the dishwasher main body. The water supply mechanism includes a suction pump and a heating pump. The suction pump is used to supply washing water to the washing cavity, and the heating pump is used to heat the washing water and supply it to the spray arm assembly. The heating device is provided with a fluid channel, and the suction pump is communicated with the washing cavity through the fluid channel. The heating device is used to heat the washing water flowing through the fluid channel. The control device is electrically connected to the water supply mechanism and the heating device respectively. The heating and washing control method includes the following steps: S1: The control device receives user input and the washing program is started; S3: According to the user input, the control device controls the dishwasher to enter the corresponding washing mode. The washing mode at least includes a normal washing mode and a high-temperature washing mode. The suction pump, the heating pump, and the heating device are respectively started according to the washing mode to supply washing water at a preset temperature to the spray arm assembly and / or the washing cavity. The second aspect of the present application discloses a heating and washing control method for a dishwasher. The dishwasher is at least provided with two washing modes of "normal washing" and "high-temperature washing". By switching different washing modes, the outflow direction and heating temperature of the washing water can be controlled. Specifically, in the high-temperature washing mode, the heating device can heat the washing water in addition to the suction pump and the heating pump, so that the water temperature of the washing water can efficiently reach the high-temperature disinfection standard, while avoiding the bubble problem generated when the water temperature of the suction pump and the heating pump is too high, and ensuring the effective implementation of the washing and high-temperature disinfection functions of the dishwasher.

[0026] In one embodiment, in the normal washing mode, the heating pump is started, the washing water is pumped in and heated, and then the driving washing water flows to the spray arm assembly. The spray arm assembly sprays the washing water into the washing cavity to wash the tableware; in the high-temperature washing mode, the suction pump and the heating device are respectively started. The suction pump drives the washing water to flow into the washing cavity. When the washing water flows into the washing cavity, the heating device heats the washing water flowing through the fluid channel to the disinfection standard temperature so that the washing water can be used to disinfect the tableware at a high temperature. When the user selects the "normal washing" mode, the washing water output by the heating pump can flow to the spray arm assembly at a preset flow rate L1 for it to spray and clean the tableware in the washing cavity. At the same time, the temperature of the washing water rises after being heated by the heating pump, so that the dirt-removing ability of the washing water is enhanced; when the user selects the "high-temperature washing" mode, the washing water output by the suction pump will flow to the washing cavity at a preset flow rate L2. When the washing water flows into the washing cavity, the temperature rises to the disinfection standard under the heating of the heating device to realize the disinfection and sterilization function of the dishwasher for the tableware.

[0027] In one embodiment, the washing mode further includes a quick washing mode. In the quick washing mode, the heating pump, the suction pump, and the heating device are started synchronously to respectively supply the washing water to the washing cavity and the spray arm assembly. When the user selects the "quick washing" mode, the synchronous operation of the heating pump, the suction pump, and the heating device can heat the washing water quickly to the greatest extent, thereby greatly saving the washing water heating time and improving the washing efficiency of the dishwasher.

[0028] In one embodiment, the water supply mechanism further includes a water cup. The water cup is respectively connected to the suction pump and the heating pump. The water cup is located at the bottom of the dishwasher main body. The water cup is connected to the washing cavity. The specific process of step S3 is as follows: S31: Select the washing mode according to the application scenario requirements, and start the suction pump, the heating pump, and the heating device respectively according to the requirements of the washing mode to supply the washing water at a preset temperature to the spray arm assembly and / or the washing cavity; S32: After the washing water in the washing cavity washes the tableware, it flows back into the water cup for the suction pump and / or the heating pump to pump out and transport to the washing cavity and / or the spray arm assembly for recycling until the washing work is completed. By setting a water cup on the dishwasher main body to store the washing water, the first pump inlet of the suction pump and the second pump inlet of the heating pump can be directly connected to the water cup respectively to pump the washing water in the water cup to the washing cavity and the spray arm assembly, etc. The washing water entering the washing cavity washes the tableware and then falls to the bottom of the washing cavity under the action of gravity and further flows back into the water cup. Thus, a water circulation system can be formed. Without using a large amount of water sources, the tableware can be thoroughly cleaned, while also saving detergent and energy, and the operation is convenient, which is beneficial to improving the washing efficiency of the dishwasher.

[0029] In one embodiment, the water supply mechanism further includes a water inlet assembly, which is connected to an external water source and is used to convey washing water to the water cup or the washing chamber. Before step S3, the heating and washing control method further includes: S2: When the water volume in the water cup is less than the preset water volume, the water inlet assembly is connected to the external water source to convey the required washing water to the water cup or the washing chamber. When the washing water in the water cup is insufficient, the control device can control the water inlet assembly to be connected to the external water source and input washing water into the water cup or the washing chamber, thereby simplifying manual operation, making the dishwashing work more convenient, and at the same time realizing quantitative control of the washing water, so as to facilitate confirming the dosing parameter of the detergent and being conducive to improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 An exploded view of a dishwasher according to an embodiment;

[0031] Figure 2 A perspective view of a dishwasher according to an embodiment;

[0032] Figure 3 A perspective view of a heating device according to an embodiment;

[0033] Figure 4 For Figure 1 An enlarged view of area A of

[0034] Figure 5 A perspective view of a heating pump according to an embodiment;

[0035] Figure 6 A first flow schematic diagram of the heating and washing control method of the dishwasher;

[0036] Figure 7 A specific flow schematic diagram of S3;

[0037] Figure 8 A second flow schematic diagram of the heating and washing control method of the dishwasher.

[0038] Among them, the corresponding relationship between the reference numerals and the component names is as follows:

[0039] 1 Dishwasher main body, 101 Washing chamber, 102 Second connection hole, 11 Mounting block, 111 Positioning pin;

[0040] 2 Water supply mechanism, 201 First pump inlet, 202 Second pump outlet, 203 Second pump inlet, 204 Second pump outlet, 21 Water suction pump, 22 Heating pump, 221 Pump housing, 222 Second heating component, 23 Water cup, 24 First pipeline;

[0041] 3 Heating device, 301 liquid outlet, 302 liquid inlet, 303 installation cavity, 304 positioning hole, 305 first connection hole, 31 housing, 32 first heating component, 33 fixing component, 331 installation shell, 332 positioning plate, 34 thermostat, 35 fuse. Detailed implementation manners

[0042] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0044] The following describes some embodiments of the dishwasher of the present invention with reference to the accompanying drawings.

[0045] As Figures 1 to 5 shown, this embodiment discloses a dishwasher, including: a dishwasher main body 1, the dishwasher main body 1 is provided with a washing cavity 101; a spray arm assembly, the spray arm assembly is arranged on the dishwasher main body 1, and the spray arm assembly is configured to spray washing water into the washing cavity 101; a water supply mechanism 2, the water supply mechanism 2 is arranged on the dishwasher main body 1, the water supply mechanism 2 includes a suction pump 21 and a heating pump 22, the suction pump 21 is used to supply washing water to the washing cavity 101, and the heating pump 22 is used to heat the washing water and supply it to the spray arm assembly for use; a heating device 3, the heating device 3 is provided with a fluid channel, the suction pump 21 is communicated with the washing cavity 101 through the fluid channel, and the heating device 3 is used to heat the washing water flowing through the fluid channel; a control device, the control device is arranged on the dishwasher main body 1, and the control device is electrically connected to the suction pump 21, the heating pump 22 and the heating device 3 respectively.

[0046] The present application discloses a dishwasher. The water supply mechanism 2 is provided with a heating pump 22 communicating with the spray arm assembly, which can heat the washing water while pumping water to improve the decontamination ability of the washing water. At the same time, a water suction pump 21 is also provided and communicates with the washing cavity 101. By arranging an independent heating device 3 on the water path connecting the water suction pump 21 and the washing cavity 101, when the washing water flows through the fluid channel of the heating device 3, it is quickly heated to the high-temperature disinfection standard to achieve the high-temperature disinfection function of the dishwasher. Moreover, it not only solves the problem of bubbles generated when the water temperature of the water suction pump 21 and the heating pump 22 is too high, but also can ensure that the water pressure supplied by the heating pump 22 to the spray arm assembly is not affected by shunting by supplying water through the separate water suction pump 21. By adopting the above structure, by using the combined use of the heating pump 22, the water suction pump 21 and the heating device 3, the heating efficiency can be effectively improved to shorten the heating time, thereby achieving the purpose of shortening the washing time. At the same time, it is also convenient for the dishwasher to control the outflow direction and heating temperature of the washing water according to the specific washing mode, which is beneficial to improving the washing efficiency of the dishwasher and saving energy.

[0047] As Figure 2 shown, in addition to the features of the above embodiment, this embodiment further defines that: the water supply mechanism 2 further includes a first pipeline 24. One end of the first pipeline 24 communicates with the first pump outlet 202 of the water suction pump 21, and the other end of the first pipeline 24 communicates with the washing cavity 101. The heating device 3 is arranged on the first pipeline 24. The water suction pump 21 and the washing cavity 101 are communicated through the first pipeline 24. By arranging the heating device 3 on the first pipeline 24, the washing water can be heated by the heating device 3 to meet the high-temperature disinfection standard when flowing through the fluid channel and then output to the washing cavity 101. At the same time, through the setting of the first pipeline 24, it is more convenient for installers to reasonably arrange components such as the water supply mechanism 2 and the heating device 3, so as to improve the space utilization rate of the dishwasher.

[0048] In addition to the features of the above embodiment, this embodiment further defines that: the water supply mechanism 2 further includes a one-way valve. The one-way valve is arranged on the first pipeline 24, and the one-way valve is located at one end of the heating device 3 close to the water suction pump 21. The one-way valve is used to prevent the washing liquid entering the fluid channel from flowing back into the water suction pump 21. Through the setting of the one-way valve, the washing water heated at high temperature by the heating device 3 can be prevented from flowing back into the water suction pump 21 through the first pipeline 24, thereby avoiding the situation that heating bubbles are easily generated when the water temperature in the impeller cavity of the water suction pump 21 is too high, resulting in the abnormal operation of the water suction pump 21, and ensuring that the water suction pump 21 can pump water stably.

[0049] As Figure 2As shown, in addition to the features of the above embodiments, this embodiment further defines that: the water supply mechanism 2 further includes a water cup 23, the water cup 23 is arranged on the dishwasher main body 1, the water cup 23 is respectively communicated with the water suction pump 21 and the heating pump 22, and the heating pump 22 is used to transport the washing water in the water cup 23 to the spray arm assembly, and the heating pump 22 is used to transport the washing water in the water cup 23 to the washing cavity 101. By arranging the water cup 23 on the dishwasher main body 1 for storing washing water, the first pump inlet 201 of the water suction pump 21 and the second pump inlet 203 of the heating pump 22 can be directly connected to the water cup 23 respectively to pump the washing water in the water cup 23 to the washing cavity 101 and the spray arm assembly, etc. The setting of the water cup 23 can facilitate the user to perform operations such as water production, purification and filtration, and detergent dispensing, etc., so as to cope with temporary water cut-off situations.

[0050] As Figure 2 shown, in addition to the features of the above embodiments, this embodiment further defines that: the water cup 23 is located at the bottom of the dishwasher main body 1, and the water cup 23 is communicated with the washing cavity 101. By adopting the above structure, the washing water entering the washing cavity 101 will fall to the bottom of the washing cavity 101 under the action of gravity after washing the tableware and further flow back into the water cup 23, thereby forming a water circulation system. Without using a large amount of water source, the tableware can be thoroughly cleaned, while saving detergent and energy, and the operation is convenient, which is beneficial to improving the washing efficiency of the dishwasher.

[0051] In addition to the features of the above embodiments, this embodiment further defines that: the water supply mechanism 2 further includes a water inlet assembly, the water inlet assembly is communicated with an external water source, the water inlet assembly is used to transport washing water to the water cup 23 or the washing cavity 101, and the water inlet assembly is electrically connected to the control device. By arranging the water inlet assembly, when the user starts the washing program, the control device can control the water inlet assembly to be communicated with the external water source and input washing water to the water cup 23 or the washing cavity 101, thereby simplifying the manual operation, making the dishwashing work more convenient, and at the same time, quantitative control of the washing water can be realized, so as to facilitate the confirmation of the detergent dosing parameter, which is beneficial to improving the cleaning efficiency.

[0052] As Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment further defines that the heating device 3 includes a housing 31 and a first heating component 32. The housing 31 is provided with a fluid passage, and the first heating component 32 is disposed on the housing 31 assembly. The first heating component 32 is electrically connected to the control device, and the first heating component 32 is used to heat the washing water in the fluid passage. The first heating component 32 is provided on the housing 31. The input end of the fluid passage of the housing 31 is communicated with the first pump outlet 202 of the water suction pump 21. After the washing water transported by the water suction pump 21 into the fluid passage is heated by the first heating component 32, the washing water will flow out from the output end of the fluid passage and be transported to the washing chamber 101. Thus, an independent heating device 3 can be formed on the water path of the dishwasher washing system, so that the washing water temperature in the high-temperature washing link can better meet the high-temperature disinfection standard and will not affect the water suction pump 21.

[0053] As Figure 3 shown, in addition to the features of the above embodiments, this embodiment further defines that the housing 31 includes a housing body, a first connecting column and a second connecting column. The first connecting column and the second connecting column are respectively disposed at both ends of the housing body. The housing body is provided with a liquid passing cavity. The first connecting column is provided with a liquid inlet 302, and the second connecting column is provided with a liquid outlet 301. The liquid inlet 302, the liquid passing cavity and the liquid outlet 301 are sequentially communicated to form a fluid passage, and the first heating component 32 is disposed on the housing body.

[0054] As Figure 2 and Figure 3 shown, in addition to the features of the above embodiments, this embodiment further defines that the heating device 3 further includes a fixing component 33. The fixing component 33 is disposed on the housing 31, and the fixing component 33 is used for adaptively installing with the outer wall of the dishwasher main body 1. By using the fixing component 33 to fix the heating device 3 on the dishwasher main body 1, the heating device 3 can be set more stably, ensuring that the connection between the heating device 3 and the dishwasher main body 1 and the water suction pump 21 is not easily loosened.

[0055] As Figure 1 、 Figure 3 and Figure 4As shown, in addition to the features of the above embodiments, this embodiment further defines that the fixing component 33 includes an installation housing 331. The installation housing 331 is provided with an installation cavity 303. The housing 31 is arranged on the installation housing 331. At least part of the first heating component 32 and at least part of the housing 31 are located in the installation cavity 303. A positioning hole 304 is provided on the installation wall of the installation housing 331, and the positioning hole 304 is used for fitting and installing with the positioning pin 111 on the dishwasher main body 1. Through the arrangement of the installation housing 331, on the one hand, it is convenient to fix the heating device 3 to the dishwasher main body 1 through the installation housing 331. On the other hand, the installation housing 331 is provided with an installation cavity 303 for installing the first heating component 32 and the housing 31, so as to form a protective isolation for the first heating component 32 and the housing 31. While protecting the first heating component 32 and the housing 31, it can also reduce the loss caused by the heat dissipation of the first heating component 32. The positioning hole 304 is arranged on the installation wall of the installation housing 331. When the heating device 3 is installed on the dishwasher main body 1, the positioning hole 304 on the installation wall of the installation housing 331 can be aligned and connected with the positioning pin 111 on the dishwasher main body 1, so as to form a positioning effect on the heating device 3, which is beneficial to the rapid installation of the heating device 3.

[0056] As Figure 3 and Figure 4 shown, in addition to the features of the above embodiments, this embodiment further defines that the fixing component 33 further includes a positioning plate 332. The positioning plate 332 is partially located in the installation cavity 303. The positioning plate 332 is arranged opposite to the installation wall of the installation housing 331. One end of the positioning plate 332 is arranged on the end wall of the housing 31, and the other end of the positioning plate 332 extends out of the installation cavity 303. The positioning plate 332 is provided with a first connection hole 305, and the first connection hole 305 is used for connecting and positioning the positioning plate 332 and the dishwasher main body 1 with the second connection hole 102 on the dishwasher main body 1 through a pin shaft. By connecting the first connection hole 305 on the positioning plate 332 with the second connection hole 102 on the dishwasher main body 1 by a pin shaft, the positioning plate 332 can cooperate with the installation housing 331 to complete the rapid positioning installation of the heating device 3, and ensure that the heating device 3 is installed firmly and is not prone to loosening and deviation.

[0057] As Figure 1 、 Figure 3 and Figure 4 shown, in addition to the features of the above embodiments, this embodiment further defines that an installation block 11 is formed on the outer wall of the dishwasher main body 1, and the installation block 11 is used for fitting and installing with the fixing component 33. By providing the installation block 11, the installation block 11 can cooperate with the fixing component 33 to position and install the heating device 3, effectively improving the installation speed.

[0058] As Figure 4As shown, in addition to the features of the above embodiments, this embodiment further defines that: the mounting block 11 is formed with a positioning pin 111.

[0059] As Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the mounting block 11 is provided with a second connection hole 102.

[0060] As Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the heating device 3 further includes a thermostat 34, the temperature control component is arranged on the housing 31 and / or the fixing component 33, the thermostat 34 is electrically connected to the first heating component 32, and the thermostat 34 is used to control the working temperature of the first heating component 32. Through the setting of the thermostat 34, it is convenient to carry out constant temperature control on the heating temperature of the first heating component 32, and the working temperature can be adjusted when needed so that the water temperature of the washing water in the fluid channel can be quickly increased, improving the heating efficiency.

[0061] In addition to the features of the above embodiments, this embodiment further defines that: the heating device 3 further includes a temperature sensor, the temperature sensor is arranged on the housing 31, the temperature sensor is used to detect the liquid temperature in the fluid channel, the temperature sensor is electrically connected to the thermostat 34, and the thermostat 34 is used to receive the temperature signal of the temperature sensor and control the first heating component 32 to work according to the received temperature signal. Through the setting of the temperature sensor, the liquid temperature value in the fluid channel can be obtained in real time, so that under the cooperation of the temperature sensor and the thermostat 34, the water temperature in the fluid channel is ensured to be within the standard temperature value range. On the one hand, it effectively avoids the situation that the water temperature is lower than the temperature standard, resulting in insufficient time for the water temperature to reach the standard and affecting the disinfection effect; on the other hand, when the water temperature reaches the appropriate value, it can be better controlled in a constant temperature state, avoiding the situation of excessive water temperature and causing energy waste, thereby improving the heating efficiency of the heating device 3.

[0062] As Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the heating device 3 further includes a fuse 35, the fuse 35 is arranged on the housing 31 and / or the fixing component 33, and the fuse 35 is used to cut off the connection between the first heating component 32 and the power supply to achieve overcurrent protection of the circuit. The fuse 35 is used as an overcurrent protection device, which is used to disconnect the power supply of the whole device when the current of the first heating component 32 is too large, playing a role in preventing damage to electronic equipment.

[0063] As Figure 5As shown, in addition to the features of the above embodiments, this embodiment further defines that the heating pump 22 includes a motor, a pump housing 221, an impeller, and a second heating component 222. The motor and the second heating component 222 are respectively arranged on the pump housing 221. The pump housing 221 has a pump chamber, a second pump inlet 203 and a second pump outlet 204 communicating with the pump chamber. The impeller is installed in the pump chamber and is electrically connected to the motor. By adopting the above structure, when the motor drives the impeller to rotate, a driving force can be generated to drive the washing water to flow from the second pump inlet 203 to the second pump outlet 204. At the same time, the second heating component 222 is arranged on the pump housing 221 to heat the water flow, and the decontamination ability of the washing water can be improved by raising the temperature.

[0064] An embodiment of the second aspect of the present invention provides a heating and washing control method for a dishwasher, as Figure 2 and Figure 7 shown, the dishwasher includes a dishwasher main body 1 and a spray arm assembly, a water supply mechanism 2, a heating device 3, and a control device arranged on the dishwasher main body 1. The spray arm assembly is configured to spray washing water into the washing cavity 101 of the dishwasher main body 1. The water supply mechanism 2 includes a suction pump 21 and a heating pump 22. The suction pump 21 is used to supply washing water to the washing cavity 101, and the heating pump 22 is used to heat the washing water and supply it to the spray arm assembly. The heating device 3 is provided with a fluid channel. The suction pump 21 is communicated with the washing cavity 101 through the fluid channel. The heating device 3 is used to heat the washing water flowing through the fluid channel. The control device is electrically connected to the water supply mechanism 2 and the heating device 3 respectively. The heating and washing control method includes the following steps: S1: The control device receives user input and the washing program is started; S3: According to the user input, the dishwasher is controlled to enter the corresponding washing mode. The washing mode at least includes a normal washing mode and a high-temperature washing mode. The suction pump 21, the heating pump 22, and the heating device 3 are respectively started according to the washing mode to supply washing water at a preset temperature to the spray arm assembly and / or the washing cavity 101. The heating and washing control method for the dishwasher disclosed in the second aspect of the present application has at least two washing modes of "normal washing" and "high-temperature washing". By switching different washing modes, the outflow direction and heating temperature of the washing water can be controlled. Specifically, in the high-temperature washing mode, the heating device 3 can heat the washing water outside the suction pump 21 and the heating pump 22, so that the water temperature of the washing water can reach the high-temperature disinfection standard efficiently, while avoiding the bubble problem caused by the too high water temperature of the suction pump 21 and the heating pump 22, and ensuring the effective implementation of the washing and high-temperature disinfection functions of the dishwasher.

[0065] In addition to the features of the above embodiments, this embodiment further defines that: in the normal washing mode, the heating pump 22 is started, the washing water is pumped in and heated, and then the driving washing water flows to the spray arm assembly, and the spray arm assembly sprays the washing water into the washing cavity 101 to spray and wash the tableware; in the high-temperature washing mode, the water suction pump 21 and the heating device 3 are started respectively. The water suction pump 21 drives the washing water to flow into the washing cavity 101, and when the washing water flows into the washing cavity 101, the heating device 3 heats the washing water flowing through the fluid channel to the disinfection standard temperature, so that the washing water can be used for high-temperature disinfection of the tableware. When the user selects the "normal washing" mode, the washing water output by the heating pump 22 can flow to the spray arm assembly at a preset flow rate L1 for spraying and cleaning the tableware in the washing cavity 101. At the same time, the temperature of the washing water rises after being heated by the heating pump 22, so that the decontamination ability of the washing water is enhanced; when the user selects the "high-temperature washing" mode, the washing water output by the water suction pump 21 will flow into the washing cavity 101 at a preset flow rate L2, and the temperature of the washing water rises to the disinfection standard under the heating of the heating device 3 when flowing into the washing cavity 101, so as to realize the disinfection and sterilization function of the dishwasher for the tableware.

[0066] In addition to the features of the above embodiments, this embodiment further defines that: the washing mode further includes a quick washing mode. In the quick washing mode, the heating pump 22, the water suction pump 21 and the heating device 3 are started synchronously to respectively supply the washing water to the washing cavity 101 and the spray arm assembly. When the user selects the "quick washing" mode, the synchronous operation of the heating pump 22, the water suction pump 21 and the heating device 3 can heat the washing water quickly to the greatest extent, thereby greatly saving the washing water heating time and improving the washing efficiency of the dishwasher.

[0067] As Figure 2 and Figure 7 shown, in addition to the features of the above embodiments, this embodiment further defines that: the water supply mechanism 2 further includes a water cup 23. The water cup 23 is respectively communicated with the water suction pump 21 and the heating pump 22. The water cup 23 is located at the bottom of the dishwasher main body 1, and the water cup 23 is communicated with the washing cavity 101. The specific process of step S3 is as follows: S31: Select the washing mode according to the application scenario requirements, and start the water suction pump 21, the heating pump 22 and the heating device 3 respectively according to the requirements of the washing mode to supply the washing water at a preset temperature to the spray arm assembly and / or the washing cavity 101;

[0068] S32: After the washing water in the washing chamber 101 cleans the tableware, it flows back into the water cup 23, and is pumped out by the suction pump 21 and / or the heating pump 22 and transported to the washing chamber 101 and / or the spray arm assembly for recycling until the washing work is completed. By providing a water cup 23 on the dishwasher main body 1 for storing washing water, the first pump inlet 201 of the suction pump 21 and the second pump inlet 203 of the heating pump 22 can be directly connected to the water cup 23 respectively to pump the washing water in the water cup 23 to the washing chamber 101 and the spray arm assembly, etc. The washing water entering the washing chamber 101 will fall to the bottom of the washing chamber 101 under the action of gravity and further flow back into the water cup 23. Thus, a water circulation system can be formed, which can thoroughly clean the tableware without using a large amount of water sources, save detergent and energy at the same time, and is convenient to operate, which is beneficial to improving the washing efficiency of the dishwasher.

[0069] As Figure 8 shown, in addition to the features of the above embodiments, this embodiment further defines that: the water supply mechanism 2 further includes a water inlet assembly, the water inlet assembly is communicated with an external water source, and the water inlet assembly is used to transport washing water to the water cup 23 or the washing chamber 101. Before step S3, the heating and washing control method further includes: S2: When the water volume in the water cup 23 is less than the preset water volume, the water inlet assembly is communicated with the external water source to transport the required washing water to the water cup 23 or the washing chamber 101. When the washing water in the water cup 23 is insufficient, the control device can control the water inlet assembly to be communicated with the external water source and input washing water into the water cup 23 or the washing chamber 101. Thus, the manual operation can be simplified, the dishwashing work can be made more convenient, and the quantitative control of the washing water can be realized at the same time, so as to facilitate the confirmation of the detergent dosage parameters, which is beneficial to improving the cleaning efficiency.

[0070] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0071] The above embodiments only express several implementation manners of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A dishwasher, characterized in that, Comprising: A dishwasher main body (1), the dishwasher main body (1) being provided with a washing cavity (101); A spray arm assembly, the spray arm assembly being arranged on the dishwasher main body (1), the spray arm assembly being configured to spray washing water into the washing cavity (101); A water supply mechanism (2), the water supply mechanism (2) being arranged on the dishwasher main body (1), the water supply mechanism (2) including a suction pump (21) and a heating pump (22), the suction pump (21) being used to supply washing water to the washing cavity (101); the heating pump (22) being used to heat the washing water and supply it for use by the spray arm assembly; A heating device (3), the heating device (3) being provided with a fluid passage, the suction pump (21) being in communication with the washing cavity (101) through the fluid passage, the heating device (3) being used to heat the washing water flowing through the fluid passage; A control device, the control device being arranged on the dishwasher main body (1), the control device being electrically connected to the suction pump (21), the heating pump (22) and the heating device (3) respectively.

2. The dishwasher according to claim 1, wherein The water supply mechanism (2) further includes a first pipe (24), one end of the first pipe (24) being in communication with the first pump outlet (202) of the suction pump (21), the other end of the first pipe (24) being in communication with the washing cavity (101), the heating device (3) being arranged on the first pipe (24).

3. The dishwasher according to claim 2, wherein, The water supply mechanism (2) further includes a check valve, the check valve being arranged on the first pipe (24), the check valve being located at one end of the heating device (3) close to the suction pump (21), the check valve being used to prevent the washing liquid entering the fluid passage from flowing back into the suction pump (21).

4. The dishwasher according to claim 1, characterized in that, The heating device (3) includes a housing (31) and a first heating assembly (32), the housing (31) being provided with the fluid passage, the first heating assembly (32) being arranged on the housing (31) assembly, the first heating assembly (32) being electrically connected to the control device, the first heating assembly (32) being used to heat the washing water in the fluid passage.

5. The dishwasher according to claim 4, wherein, The heating device (3) further includes a fixing assembly (33), the fixing assembly (33) being arranged on the housing (31), the fixing assembly (33) being used for fitting and installing with the outer wall of the dishwasher main body (1).

6. A heating and washing control method for a dishwasher, characterized in that, The dishwasher includes a dishwasher main body (1), a spray arm assembly, a water supply mechanism (2), a heating device (3), and a control device disposed on the dishwasher main body (1). The spray arm assembly is configured to spray washing water into a washing cavity (101) of the dishwasher main body (1). The water supply mechanism (2) includes a suction pump (21) and a heating pump (22). The suction pump (21) is used to supply washing water to the washing cavity (101), and the heating pump (22) is used to heat the washing water and supply it to the spray arm assembly. The heating device (3) is provided with a fluid passage. The suction pump (21) is communicated with the washing cavity (101) through the fluid passage. The heating device (3) is used to heat the washing water flowing through the fluid passage. The control device is electrically connected to the water supply mechanism (2) and the heating device (3) respectively. The heating and washing control method includes the following steps: S1: The control device receives user input and the washing program is started; S3: Control the dishwasher to enter the corresponding washing mode according to user input. The washing mode at least includes a normal washing mode and a high-temperature washing mode. Start the suction pump (21), the heating pump (22), and the heating device (3) respectively according to the washing mode to supply washing water at a preset temperature to the spray arm assembly and / or the washing cavity (101).

7. The heating and washing control method of the dishwasher according to claim 6, characterized in that In the normal washing mode, the heating pump (22) is started, the washing water is pumped in and heated, and then the washing water flow is driven to the spray arm assembly. The spray arm assembly sprays the washing water into the washing cavity (101) to spray and wash the tableware; In the high-temperature washing mode, the suction pump (21) and the heating device (3) are started respectively. The suction pump (21) drives the washing water to flow into the washing cavity (101). When the washing water flows into the washing cavity (101), the heating device (3) heats the washing water flowing through the fluid passage to the disinfection standard temperature so that the washing water can be used for high-temperature disinfection of the tableware.

8. The heating and washing control method of the dishwasher according to claim 6, characterized in that, The washing mode further includes a quick washing mode. In the quick washing mode, the heating pump (22), the suction pump (21), and the heating device (3) are started synchronously to respectively deliver washing water to the washing cavity (101) and the spray arm assembly.

9. The heating and washing control method of the dishwasher according to claim 6, characterized in that, The water supply mechanism (2) further includes a water cup (23). The water cup (23) is communicated with the suction pump (21) and the heating pump (22) respectively. The water cup (23) is located at the bottom of the dishwasher main body (1). The water cup (23) is communicated with the washing cavity (101). The specific process of step S3 is as follows: S31: Select the washing mode according to the application scenario requirements, and start the suction pump (21), the heating pump (22), and the heating device (3) respectively according to the requirements of the washing mode to supply washing water at a preset temperature to the spray arm assembly and / or the washing cavity (101); S32: After the washing water in the washing chamber (101) washes the tableware, it flows back into the water cup (23), and is pumped out by the suction pump (21) and / or the heating pump (22) and transported to the washing chamber (101) and / or the spray arm assembly for recycling until the washing work is completed.

10. The heating and washing control method of the dishwasher according to claim 9, characterized in that, The water supply mechanism (2) further includes a water inlet assembly, the water inlet assembly is communicated with an external water source, and the water inlet assembly is used to transport washing water to the water cup (23) or the washing chamber (101). Before step S3, the heating and washing control method further includes: S2: When the water volume in the water cup (23) is less than the preset water volume, the water inlet assembly is communicated with the external water source to transport the required washing water to the water cup (23) or the washing chamber (101).

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