Dish washing machine

Abstract

The invention provides a dish washing machine. The dish washing machine comprises a cleaning mechanism, a water supply mechanism, a heat pump system and a control mechanism. The cleaning mechanism comprises a cleaning chamber and a rinsing chamber and is used for cleaning and rinsing bowls; the water supply mechanism is used for supplying water to the cleaning mechanism; the heat pump system is arranged at the top of the cleaning mechanism and used for recycling heat of hot air overflowing from the inlet end and the outlet end of the cleaning mechanism so as to heat liquid in the water supply mechanism. The control mechanism is used for controlling operation states of the cleaning mechanism, the water supply mechanism and the heat pump system. According to the dish-washing machine, resource waste caused by overflow of hot air at the inlet end and the outlet end of the cleaning mechanism can be avoided, the recovery efficiency of the heat pump system is improved, and heating energy consumption of water for the dish-washing machine is saved; the probability that water vapor enters the heat pump system can be reduced, the influence of the water vapor on the heat pump system is reduced, the heat recovery efficiency is improved, the service life of the heat pump system is prolonged, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of dishwasher technology, specifically to a dishwasher. Background Technology

[0002] In some large commercial dishwashers, there are multiple washing sections and conveying mechanisms. The conveying mechanism can carry dishes and utensils through multiple washing sections in sequence to complete the washing. Therefore, spray arms are provided in multiple washing sections of the dishwasher. The spray arms spray a large amount of hot water for washing, which generates a lot of heat in the washing mechanism. In the prior art, in order to avoid steam waste, a heat recovery system is set up to recover the heat in the washing mechanism and then heat the water in the dishwasher to achieve energy saving.

[0003] However, in most existing heat recovery systems, the air inlet is directly connected to the cleaning mechanism, meaning the opening is directly at the top of the cleaning mechanism, allowing hot air from the cleaning mechanism to directly enter the heat recovery system. But since dishwashers include inlets and outlets, hot air still overflows from these points, and this lost heat cannot be recovered, resulting in low heat recovery efficiency. Furthermore, the direct opening at the top of the cleaning mechanism causes a large amount of moisture to enter the heat recovery system, which can affect the operating structure of the heat recovery system, reducing its lifespan and efficiency.

[0004] Therefore, there is room for further improvement in existing commercial dishwashers. Summary of the Invention

[0005] In view of this, and addressing the technical problem that the heat recovery structure of existing dishwashers directly recovers heat from the cleaning mechanism, causing heat to overflow from the outlet and inlet ends and reducing heat recovery efficiency, this application provides a dishwasher that recovers heat overflowing from the dishwasher, thereby improving heat recovery efficiency; at the same time, it can reduce the amount and probability of water vapor entering the heat pump system, thus increasing the service life of the dishwasher.

[0006] This application provides a dishwasher, characterized in that it includes: A cleaning facility, including a cleaning chamber and a rinsing chamber, is used for cleaning and rinsing dishes; A water supply system, used to supply water to the cleaning unit; A heat pump system, located at the top of the cleaning mechanism, is used to recover the heat from the hot air overflowing from the inlet and outlet of the cleaning mechanism to heat the liquid in the water supply mechanism. The control mechanism is used to control the operating status of the cleaning mechanism, water supply mechanism, and heat pump system.

[0007] Compared with existing technologies, the dishwasher of this application is equipped with a cleaning mechanism, a water supply mechanism, a heat pump system, and a control mechanism. The cleaning mechanism is used to clean and rinse dishes, the water supply mechanism provides water to the cleaning mechanism, and the heat pump system is located on top of the cleaning mechanism. The heat pump system can collect the hot air overflowing from the inlet and outlet of the cleaning mechanism and recover the heat of the hot air to heat the water in the water supply mechanism. This recovers and reuses the heat of the hot air overflowing from the cleaning mechanism, which on the one hand avoids the waste of resources caused by the overflow of hot air from the inlet and outlet of the cleaning mechanism and improves the recovery efficiency of the heat pump system, and on the other hand saves the energy consumption of heating water in the dishwasher. In addition, since the heat overflowing from the inlet and outlet of the cleaning mechanism is recovered, the water vapor mixture overflowing from the cleaning mechanism will pass through a space outside the dishwasher before entering the heat collection chamber and contacting the heat pump system. During this movement, most of the water vapor remains in the external environment, thereby reducing the probability of water vapor entering the heat pump system, reducing the impact of water vapor on the heat pump system, improving heat recovery efficiency, and increasing the service life and working efficiency of the heat pump system.

[0008] Preferably, the water supply mechanism includes: The main wash water tank is used to collect the washing water from the cleaning room. Rinse water tank, used to collect washing water from the rinsing chamber; The buffer tank is used to store dishwashing water and supply water to the main wash tank and the rinse tank. The inlet pipe is used to guide the liquid in the buffer tank to the main wash tank; The heat pump system is used to heat the liquid in the inlet pipe.

[0009] In this embodiment, a main wash water tank and a rinse water tank are set up separately, which can separately receive the washing water from the washing chamber and the rinsing chamber, thereby ensuring the cleanliness of the washing water in each chamber, increasing the number of times the washing water in the rinsing chamber can be recycled, and thus reducing water costs. The buffer water tank can provide temporary storage space for the water used by the entire washing mechanism, and the water inlet pipe can lead the liquid in the buffer water tank to the heat pump system so that the heat pump system can heat the liquid in the water inlet pipe.

[0010] Preferably, the cleaning mechanism includes: A cleaning arm is located inside the cleaning chamber; the main water tank is used to supply water to the cleaning arm. A pre-rinsing arm is located in the rinsing chamber; the rinsing water tank is used to supply water to the pre-rinsing arm. The final rinse arm is located in the rinse chamber; the water inlet pipe is used to supply water to the final rinse arm. The cleaning water pump is used to control whether the main washing water tank supplies water to the cleaning arm; The first rinse water pump is used to control whether the rinse water tank supplies water to the pre-rinse arm; The second rinse water pump is used to control whether the rinse water tank supplies water to the final rinse arm.

[0011] In this embodiment, separating the water supply sources for the pre-rinse arm and the final rinse arm ensures the cleanliness of the water output from the final rinse arm and guarantees the hygiene of the final rinse of the dishes. The setting of the cleaning water pump and the first and second rinse water pumps enables independent control of the water output from the cleaning arm, the pre-rinse arm, and the final rinse arm, achieving precise control.

[0012] Preferably, the water supply mechanism further includes: The first supply pipe is used to guide the liquid in the main wash tank to the washing arm; The second supply pipe is used to guide the liquid in the rinsing tank to the pre-rinsing arm; The third supply pipe is used to guide the heated liquid in the inlet pipe to the final rinse arm; The fourth supply pipe is used to guide the heated liquid in the inlet pipe to the buffer tank; A heating element is connected in series with the third supply pipe and contains a heating device. The fourth supply pipe is located at least partially inside the main wash water tank.

[0013] In this embodiment, the first supply pipe enables the recycling of water in the cleaning chamber; the second supply pipe enables the recycling of water in the rinsing chamber; and the fourth supply pipe guides hot water from the inlet pipe back to the buffer tank to preheat the cold water in the buffer tank, thereby increasing the liquid temperature in the buffer tank. This allows the water in the buffer tank to reach the washing temperature more quickly when it is heated by the heat pump system after being recycled to the inlet pipe, thus improving the washing effect.

[0014] Preferably, the cleaning mechanism further includes: The drying fan is located in the rinsing chamber; The drying heating element is located in the rinsing chamber at the air inlet of the drying fan and is used to heat the air. The control mechanism is connected to the drying fan and the drying heating element.

[0015] In this embodiment, the drying fan can blow air onto the dishes in the rinsing chamber, and the drying heating element is located at the air inlet of the drying fan, so that the drying fan can blow out hot air and speed up the drying effect of the dishes.

[0016] Preferably, the cleaning mechanism further includes: A conveying assembly is used to transfer dishes from the inlet to the outlet of the washing mechanism; An induction switch is located at the outlet of the washing mechanism to sense whether there are bowls at the outlet and transmit the sensing information to the control mechanism. The control mechanism is used to control the operating status of the transmission component based on the sensing information.

[0017] In this embodiment, the induction switch can sense whether the conveying mechanism is conveying the bowls to the outlet, so as to prompt the user to take the bowls and avoid the bowls blocking the outlet; the control mechanism can pause or start the conveying mechanism according to the sensing information to prevent the conveying mechanism from continuing to operate and causing blockage if the outlet is blocked.

[0018] Preferred options also include: A temperature detection mechanism is used to detect the temperature of the liquid inside the water supply system and transmit the temperature value to the control mechanism. The control mechanism is used to control the operating status of the heat pump system, the cleaning mechanism, and the water supply mechanism according to the temperature value.

[0019] In this embodiment, the temperature detection mechanism can measure the temperature inside the water supply mechanism in real time, which facilitates the control mechanism to flexibly adjust the operating status of the heat pump system.

[0020] Preferred options also include: A water level detection device is used to detect the water level within a water supply system and transmit the water level information to the control system. The control mechanism is used to control the operating status of the water supply mechanism, the cleaning mechanism, and the heat pump system based on the water level information.

[0021] In this embodiment, the water level detection mechanism can detect the water level information in the water supply mechanism in a timely manner, so that the control mechanism can adjust the operating status of the water supply mechanism in a timely manner to meet the water demand of the dishwasher.

[0022] Preferably, the temperature detection mechanism includes: The first temperature sensor is located inside the main wash water tank; The second temperature sensor is located inside the heating pack; the control mechanism is used to control the operating status of the heating device based on the detection value of the second temperature sensor.

[0023] In this embodiment, the temperature inside the main wash tank and heating pack is accurately measured, allowing staff to promptly understand the current water temperature status of the dishwasher.

[0024] Preferably, the water level detection mechanism includes: The first water level sensor is installed inside the buffer tank; the buffer tank is equipped with a main water valve at its inlet end, and the control mechanism is used to control the operating status of the main water valve based on the detection information of the first water level sensor. The second water level sensor is located inside the main wash water tank; a water injection valve is provided between the main wash water tank and the water inlet pipe, and the control mechanism is used to control the operation of the water injection valve according to the detection information of the second water level sensor.

[0025] In this embodiment, the temperature inside the buffer water tank and the main washing water tank is accurately measured, which facilitates the control mechanism to control the corresponding devices in a timely manner, so as to achieve precise control of the water supply mechanism.

[0026] Preferably, the heat pump system includes: The heat collection chamber is located at the top of the cleaning mechanism, with air intakes at both ends; The heat pump assembly, located in the heat collection chamber, is used to recover heat from the hot air and exchange it with the water supply system. The air intake assembly, located at the air inlet, is used to draw the hot air overflowing from the inlet and outlet of the cleaning mechanism into the heat collection chamber. In this embodiment, the heat collection chamber can provide space for hot gas, and the air intake component can accelerate the entry of hot gas into the heat collection chamber and improve the recovery effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the working principle of a dishwasher provided in one embodiment of this application; Figure 2 This is a three-dimensional structural diagram of a dishwasher provided in an embodiment of this application; Figure 3 This is a partial exploded view of a dishwasher provided in one embodiment of this application; Figure 4 This is a partial cross-sectional schematic diagram of a dishwasher provided in an embodiment of this application.

[0028] Reference numerals: 1. Cleaning mechanism; 2. Water supply mechanism; 3. Heat pump system; 4. Control mechanism; 5. Heating device; 11. Washing chamber; 12. Rinse chamber; 13. Washing arm; 14. Pre-rinse arm; 15. Final rinse arm; 16. Conveyor assembly; 21. Main wash water tank; 22. Rinse water tank; 23. Buffer water tank; 24. Inlet water pipe; 25. First supply pipe; 26. Second supply pipe; 27. Third supply pipe; 28. Fourth supply pipe; 29. ​​Heating pack; 31. Heat collector chamber; 32. Heat pump assembly; 33. Air intake assembly; 311. Air intake baffle; 312. Mounting plate. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0030] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0031] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0032] The present application will now be described in further detail with reference to the accompanying drawings, see below. Figures 1 to 4 illustrate.

[0033] This application provides a dishwasher for automatically cleaning dishes.

[0034] Specifically, such as Figures 1 to 4 As shown, the dishwasher includes a cleaning mechanism 1, a water supply mechanism 2, a heat pump system 3, and a control mechanism 4. The control mechanism 4 can simultaneously control the operating status of the water supply mechanism 2, the cleaning mechanism 1, and the heat pump system 3, thereby enabling the cleaning mechanism 1, the water supply mechanism 2, and the heat pump system 3 to cooperate with each other, thereby improving the ease of use of the dishwasher and ensuring the operating efficiency of the dishwasher.

[0035] The cleaning mechanism 1 includes a cleaning chamber 11 and a rinsing chamber 12 connected in series. The cleaning chamber 11 is located near the inlet end of the cleaning mechanism 1, and the rinsing chamber 12 is located near the outlet end of the cleaning mechanism 1. The cleaning mechanism 1 also includes a conveying assembly 16, which is equipped with a basket for placing dishes. The conveying assembly 16 can move the basket from the inlet end of the cleaning mechanism 1 towards the outlet end, passing through the cleaning chamber 11 and the rinsing chamber 12 in sequence during the movement, thereby realizing the sequential cleaning and rinsing of the dishes. The water supply mechanism 2 is used to supply water to the spray arms of the rinsing chamber 12 and the cleaning chamber 11 to achieve the cleaning of the dishes. The heat pump system 3 is located on the top of the cleaning mechanism 1. The heat pump system 3 can collect the hot air overflowing from the inlet and outlet ends of the cleaning mechanism 1 and can recover the heat of the hot air. This process heats the water supplied by the water supply unit 2, thereby recovering and utilizing the heat from the overflowing steam from the cleaning unit 1. On the one hand, it avoids the waste of resources caused by the overflow of steam from the inlet and outlet of the cleaning unit 1, improving the recovery efficiency of the heat pump system 3. On the other hand, it saves energy consumption for heating the water in the dishwasher. In addition, since the heat overflowing from the inlet and outlet of the cleaning unit 1 is recovered, the water vapor mixture overflowing from the cleaning unit 1 will pass through a space outside the dishwasher before entering the heat collection chamber and contacting the heat pump system 3. During this movement, most of the water vapor remains in the external environment, thereby reducing the probability of water vapor entering the heat pump system 3, reducing the impact of water vapor on the heat pump system 3, improving heat recovery efficiency, and increasing the service life and working efficiency of the heat pump system 3.

[0036] In an optional embodiment of this application, the dishwasher is further extended; such as... Figure 4 As shown, the dishwasher also includes a temperature detection mechanism, which is connected to the control mechanism 4. The temperature detection mechanism is installed in the water supply mechanism 2 and is used to detect the liquid temperature at key locations of the water supply mechanism 2 in real time. It can also transmit the detected temperature value to the control mechanism 4. The control mechanism 4 analyzes the received temperature value to determine the current operating status of the dishwasher and automatically adjusts the water supply mechanism 2, the cleaning mechanism 1, and the heat pump system 3 in a timely manner so that the dishwasher can operate in the best energy-saving and efficient state.

[0037] In an optional embodiment of this application, the dishwasher is further extended; such as... Figure 4As shown, the dishwasher also includes a water level detection mechanism, which is connected to the control mechanism 4. The water level detection mechanism is set at a key position in the water supply mechanism 2 to detect the water level in the water supply mechanism 2 and transmit the water level information to the control mechanism 4. The control mechanism 4 analyzes the received water level information to determine the current operating status of the water supply mechanism 2 and automatically controls the water supply mechanism 2, the cleaning mechanism 1, and the heat pump system 3 in a timely manner so that the dishwasher can operate in the best energy-saving and most efficient state.

[0038] In an optional embodiment of this application, the dishwasher includes both a temperature detection mechanism and a water level detection mechanism, and their working principle is the same as that of the corresponding content in the two embodiments above, which will not be repeated here.

[0039] Based on any of the above embodiments, the heat pump system 3 will be described in detail; such as Figures 1 to 3 As shown, the heat pump system 3 includes a heat collection chamber 31, an air intake assembly 33, and a heat pump assembly 32. The heat collection chamber 31 is located directly above the cleaning mechanism 1 and is used to contain the hot air overflowing from the dishwasher. The heat pump assembly 32 is installed inside the heat collection chamber 31 and can recover the heat of the hot air inside the heat collection chamber 31 and transfer the recovered heat to the water in the dishwasher to achieve heat recovery and utilization and reduce heat waste. The heat collection chamber 31 has two air intakes at opposite ends, which are located above the inlet and outlet ends of the cleaning mechanism 1, respectively. There are two air intake assemblies 33, which are located at the two air intakes. The air intake assemblies 33 are connected to the heat collection chamber 31 and can draw the hot air overflowing from the inlet and outlet ends of the cleaning mechanism 1 from the external environment into the heat collection chamber 31. This can accelerate the speed at which the hot air overflowing from the inlet and outlet ends of the cleaning mechanism 1 enters the heat collection chamber 31, reduce the time the hot air stays in the room, and reduce the heat loss of the hot air.

[0040] In this embodiment, the air intake of the heat collection chamber 31 is located outside the cleaning mechanism 1 and is not directly connected to the interior of the cleaning mechanism 1. The hot air inside the cleaning mechanism 1 needs to stay in the external environment for a period of time before entering the heat collection chamber 31. Figures 1 to 3 As shown, the hot air in the cleaning mechanism 1 first overflows horizontally, then moves vertically upward to the air intake component 33, and then moves horizontally into the heat collection chamber 31. During this process, the flow path of the hot air is relatively tortuous, which increases the obstruction of the hot air directly entering the heat pump component 32. This causes the condensate generated by the hot air to remain in the external space or in the air intake component 33, reducing the amount of condensate entering the heat pump component 32. This reduces the adverse effects of condensate on the heat pump component 32 and improves the recovery efficiency and service life of the heat pump component 32.

[0041] It should be noted that in this embodiment, the heat pump assembly 32 includes an evaporator, a compressor, a condenser, and a gas-liquid separator. The evaporator, compressor, and condenser together form a heat recovery system. The heat pump assembly 32 of this application adopts the principle of air source heat pump, which will not be elaborated here.

[0042] Furthermore, such as Figures 2 to 4 As shown, buffer chambers are provided at both ends of the heat collection chamber 31. The heat collection chamber 31 is formed by a heat collection shell and is generally rectangular in structure. The buffer chambers are formed by a buffer shell and are generally right-angled trapezoidal in structure. A mounting plate 312 is provided between the buffer chamber and the heat collection chamber 31. The mounting plate 312 is arranged parallel to the vertical direction and is used to install the air intake assembly 33, which includes a fan. The mounting plate 312 is provided with multiple second air inlets, and the hot air from the dishwasher enters the heat collection chamber 31 from the fan or the second air inlets.

[0043] An air inlet baffle 311 is provided at the end of the buffer chamber away from the heat collection chamber 31. The air inlet baffle 311 has multiple first air inlets. The air inlet baffle 311 is inclined in the vertical direction. The included angle between the air inlet baffle 311 and the mounting plate 312 is an obtuse angle. The bottom of the air inlet baffle 311 is connected to the top edge of the cleaning mechanism 1. The upper end of the air inlet baffle 311 extends away from the heat collection chamber 31 to block and cover the vertical direction of the inlet and outlet ends of the cleaning mechanism 1. This allows most of the hot air rising in the vertical direction to pass through the first inlet and enter the air inlet chamber as much as possible. This can prevent the loss of hot air and increase the probability of hot air entering the heat collection chamber 31, thereby improving the heat recovery efficiency.

[0044] The first air inlet can be a round hole or a strip-shaped hole, and the second air inlet can be a round hole or a strip-shaped hole. In this embodiment, the first air inlet is a strip-shaped hole, which can increase the interception effect of condensate; the second air inlet is a round hole, which allows hot steam to quickly enter the heat collection chamber 31.

[0045] In this embodiment, the distance between the bottoms of the two air intake baffles 311 is equal to the length of the cleaning mechanism 1, and the distance between the tops of the two air intake baffles 311 is greater than the length of the cleaning mechanism 1, so that the hot air flowing out of the outlet and inlet of the cleaning mechanism 1 can be absorbed by the heat recovery device as much as possible.

[0046] Based on any of the above embodiments, the dishwasher will be further described; such as Figures 2 to 3As shown, the water supply mechanism 2 includes a main washing water tank 21, a rinsing water tank 22, a buffer water tank 23, and an inlet pipe 24. The buffer water tank 23 is located on the side of the outlet end of the washing machine mechanism. The inlet end of the buffer water tank 23 is connected to an external water source. A main water valve is provided between the external water source and the buffer water tank 23. The main water valve is connected to a control mechanism 4, which can control the opening and closing of the main water valve and the size of its opening, thereby controlling the amount of water supplied from the external water source to the buffer water tank 23. Figures 2 to 3 As shown, the main washing water tank 21 is located below the washing chamber 11. The bottom of the washing chamber 11 is provided with a washing base plate, and the washing base plate is provided with multiple through holes so that the washing water in the washing chamber 11 can enter the main washing water tank 21 through the through holes. The main washing water tank 21 is used to temporarily store the washing water in the washing chamber 11, so that the washing water in the washing chamber 11 can be recycled and reused, thus saving water.

[0047] The rinsing water tank 22 is located inside the main washing water tank 21. The rinsing water tank 22 and the main washing water tank 21 are relatively independent. Under normal circumstances, the water stored in the rinsing water tank 22 and the main washing water tank 21 is not interconnected. The rinsing water tank 22 is located near the rinsing chamber 12. The bottom of the rinsing chamber 12 is provided with a rinsing base plate. The rinsing base plate is inclined and its height angle near the washing chamber 11 is relatively low, so that the liquid washed in the rinsing chamber 12 can be guided to flow quickly to the rinsing chamber 12. The upper part of the rinsing chamber 12 is a cleaning base plate, which is also provided with multiple through holes for liquid to pass through. The difference is that the height of the cleaning base plate above the rinsing chamber 12 is greater than the height of the cleaning base plate above the main washing water tank 21. This prevents the washing water in the washing chamber 11 from shifting horizontally to the top of the rinsing water tank 22, avoiding mutual interference between the washing water in the washing chamber 11 and the washing water in the rinsing chamber 12, thereby ensuring the cleanliness of the liquid in the rinsing water tank 22.

[0048] In this embodiment, a drain valve is provided at the bottom of the rinsing water tank 22. When the drain valve is open, the rinsing water tank 22 is connected to the main washing water tank 21, and the liquid in the rinsing water tank 22 can flow into the main washing water tank 21. When the drain valve is closed, the rinsing water tank 22 is not connected to the main washing water tank 21. When the cleanliness of the liquid in the rinsing water tank 22 no longer meets the usage requirements, the drain valve can be opened to replenish the liquid in the rinsing water tank 22 to the main washing water tank 21, thereby allowing the washing water in the rinsing chamber 12 to be recycled again, further saving water.

[0049] Furthermore, the drain valve can be connected to the control mechanism 4, and liquid cleanliness detection sensors are respectively installed in the main wash tank 21 and the rinse tank 22. The cleanliness detection sensors provide real-time feedback on the cleanliness of the main wash tank 21 and the rinse tank 22 to the control mechanism 4. When the cleanliness of the liquid in the rinse tank 22 is detected to be insufficient, the control mechanism 4 controls the drain valve to open, allowing the liquid in the rinse tank 22 to flow into the main wash tank 21. Alternatively, a drain valve can be installed in the main wash tank 21, located at the inlet end of the drain pipe. When the cleanliness of the liquid in the main wash tank 21 is detected to be insufficient, the control mechanism 4 controls the drain valve to open, discharging the liquid from the main wash tank 21. This reduces manual labor requirements, achieves automated sewage and water discharge, and improves the ease of use of the dishwasher.

[0050] like Figures 2 to 3 As shown, the water inlet pipe 24 is connected to the buffer water tank 23. The water inlet pipe 24 passes through the heat pump system 3, which heats the liquid in the water inlet pipe 24. The heated liquid is then transported to the main wash water tank 21 to replenish the water stored in the main wash water tank 21.

[0051] Furthermore, the water supply mechanism 2 also includes a first supply pipe 25, a second supply pipe 26, a third supply pipe 27, and a fourth supply pipe 28; such as Figures 2 to 3 As shown, the cleaning chamber 11 is equipped with a cleaning arm 13, and the rinsing chamber 12 is equipped with a pre-rinsing arm 14 and a final rinsing arm 15. The pre-rinsing arm 14 and the final rinsing arm 15 are arranged at intervals. The pre-rinsing arm 14 is located close to the cleaning chamber 11, and the final rinsing arm 15 is located close to the outlet end of the cleaning mechanism 1.

[0052] The main washing water tank 21 is used to supply water to the washing arm 13. The inlet end of the first supply pipe 25 is connected to the outlet end of the inlet pipe 24, and the outlet end of the first supply pipe 25 is connected to the inlet end of the washing arm 13, so as to guide the liquid in the main washing water tank 21 to the washing arm 13. A washing water pump is provided between the outlet end of the first supply pipe 25 and the washing arm 13. The washing water pump applies power to the liquid to ensure that the liquid can flow along the preset path. On the other hand, it has a switch function to control whether the washing arm 13 outputs water. The control mechanism 4 is connected to the washing water pump to control the operation of the washing chamber 11.

[0053] The rinsing water tank 22 is used to supply water to the pre-rinsing arm 14; the inlet end of the second supply pipe 26 is connected to the outlet end of the inlet pipe 24, and the outlet end of the second supply pipe 26 is connected to the inlet end of the pre-rinsing arm 14, so as to guide the liquid in the rinsing water tank 22 to the pre-rinsing arm 14; a first rinsing water pump is provided between the outlet end of the second supply pipe 26 and the pre-rinsing arm 14. The first rinsing water pump applies power to the liquid to ensure that the liquid can flow along the preset path, and also has a switch function to control whether the pre-rinsing arm 14 discharges water. The control mechanism 4 is connected to the first rinsing water pump to control the operation of the rinsing chamber 12.

[0054] The inlet end of the third supply pipe 27 is connected to the outlet end of the inlet pipe 24, and the outlet end of the third supply pipe 27 is connected to the inlet end of the final rinsing arm 15 to guide the liquid in the rinsing water tank 22 to the final rinsing arm 15. A second rinsing water pump is provided between the outlet end of the third supply pipe 27 and the final rinsing arm 15. The second rinsing water pump applies power to the liquid to ensure that the liquid can flow along the preset path. On the other hand, it has a switch function to control whether the final rinsing arm 15 discharges water. The control mechanism 4 is connected to the second rinsing water pump to control the operation of the rinsing chamber 12.

[0055] Among them, such as Figure 2 , Figure 3 As shown, the cleaning mechanism 1 is also equipped with a heating pack 29 and a heating device 5. The heating pack 29 is connected in series with the third supply pipe 27. The heating pack 29 can store liquid. The heating device 5 is installed inside the heating pack 29 and is used to heat the liquid inside the heating pack 29. This allows the third supply pipe 27 to reheat the water supply to the final rinsing arm 15, ensuring that the water temperature at the outlet of the final rinsing arm 15 meets the usage requirements. The control mechanism 4 is connected to the heating device 5 to control the opening, closing, or operating level of the heating device 5, so as to flexibly control the heating device 5, meet the water demand of the final rinsing arm 15, and avoid resource waste.

[0056] In this embodiment, the water supply mechanism 2 is rationally configured to isolate and independently control the water used in the washing arm 13, pre-rinse arm 14, and final rinse arm 15. This ensures that the dishwasher can effectively recycle water while saving energy. Furthermore, by incorporating the heating pack 29 and heating device 5, the water used in the final rinse arm 15 can be heated independently and precisely, avoiding large-area heating and thus saving energy required for water heating, further reducing the cost of using the dishwasher.

[0057] The inlet end of the fourth supply pipe 28 is connected to the outlet end of the inlet pipe 24, and the outlet end of the fourth supply pipe 28 is connected to the other inlet end of the buffer water tank 23. This is used to return the heated liquid in the inlet pipe 24 to the buffer water tank 23, thereby preheating the cold water in the buffer water tank 23 and increasing the temperature of the liquid in the buffer water tank 23. This allows the liquid in the buffer water tank 23 to reach the washing temperature more quickly when it is heated by the heat pump assembly 32 after circulating to the inlet pipe 24, thus improving the washing effect.

[0058] Among them, such as Figure 2 , Figure 3 As shown, in this embodiment, the fourth supply pipe 28 is at least partially located inside the main wash water tank 21, thereby enabling the liquid in the fourth supply pipe 28 to exchange heat with the main wash water tank 21. When the temperature of the main wash water tank 21 is high, the temperature of the liquid flowing into the buffer water tank 23 is also high, which can accelerate the increase in the temperature of the liquid in the buffer water tank 23, preheat the cold water in the buffer water tank 23, and increase the temperature of the liquid in the buffer water tank 23. This allows the liquid in the buffer water tank 23 to be circulated to the inlet pipe 24 next time and heated by the heat pump system 3, which can quickly raise the temperature and allow the dishwasher water to reach the washing temperature more quickly, thus improving the washing effect. Alternatively, when the temperature of the main wash water tank 21 is low, it can accelerate the increase in the temperature of the liquid in the main wash water tank 21, allowing the water supply temperature from the main wash water tank 21 to the washing arm 13 to quickly reach the washing requirements.

[0059] The fourth supply pipe 28, located inside the main wash water tank 21, is configured with an S-shaped structure, which increases the contact area and contact path between the fourth supply pipe 28 and the liquid in the main wash water tank 21, thereby improving the heat exchange effect. It should be noted that although the fourth supply pipe 28 is at least partially located inside the main wash water tank 21, the liquid in the fourth supply pipe 28 does not come into contact with the liquid in the main wash water tank 21. The two exchange heat through the pipe wall of the fourth supply pipe 28.

[0060] In addition, it includes a fifth water supply pipe, the inlet of which is connected to the outlet of the water inlet pipe 24. The fifth water supply pipe is used to supply water to the main wash water tank 21. The outlet of the fifth water supply pipe is equipped with a water injection valve, which is connected to the control mechanism 4. The outlet of the fifth water supply pipe is located in the rinsing chamber 12. After the water is discharged, some of the liquid will flow into the rinsing water tank 22 and some of the liquid will flow into the main wash water tank 21. This ensures that there is water in the main wash water tank 21 and the rinsing water tank 22 before the dishwasher is started. The water supply mechanism 2 of this application can ensure that the water demand of each spray arm of the cleaning mechanism 1 is prepared, thus improving the efficiency of the dishwasher.

[0061] In this embodiment, the first supply pipe 25, the second supply pipe 26, the third supply pipe 27, the fourth supply pipe 28, and the fifth supply pipe are connected in parallel, which ensures that the liquid in the water inlet pipe 24 can enter the five supply pipes at the same time, so as to ensure the effective supply of water inlet pipe 24 to each supply pipe, so as to meet the usage needs of each part of the cleaning mechanism 1 and ensure the high efficiency of the dishwasher.

[0062] Furthermore, the temperature detection mechanism is described in more detail. The temperature detection mechanism includes a first temperature sensor and a second temperature sensor. The first temperature sensor is located inside the main wash water tank 21 and can detect the temperature value inside the main wash water tank 21 and feed it back to the control mechanism 4. The second temperature sensor is located inside the heating pack 29 and is used to detect the temperature value of the liquid inside the heating pack 29 and feed it back to the control mechanism 4. The control mechanism 4 is used to control the operating state of the heating device 5 according to the detection value of the second temperature sensor so that the temperature of the liquid inside the heating pack 29 can meet the usage requirements.

[0063] Furthermore, the water level detection mechanism is further described; the water level detection mechanism includes a first water level sensor and a second water level sensor; the first water level sensor is located inside the buffer tank 23, and is used to detect the water level information in the buffer tank 23 and feed it back to the control mechanism 4; there are at least two first water level sensors, respectively located at the low water level and the high water level; the control mechanism 4 is used to control the operating status of the main water valve according to the detection information of the first water level sensor, thereby timely closing or opening the main water valve to ensure the water storage capacity of the buffer tank 23; the second water level sensor is located inside the main wash water tank 21, and is used to detect the water level information in the main wash water tank 21 and feed it back to the control mechanism 4; there are at least two second water level sensors, respectively located at the low water level and the high water level; the control mechanism 4 is used to control the operating status of the water injection valve according to the detection information of the second water level sensor, thereby controlling the amount of water injected into the main wash water tank 21 by the water supply mechanism 2.

[0064] Based on any of the above embodiments, the cleaning mechanism 1 is further extended; the cleaning mechanism 1 also includes a drying fan and a drying heating element. The drying fan and the drying heating element are both installed in the rinsing chamber 12 and are located near the outlet end of the rinsing chamber 12; the drying heating element is installed at the air inlet end of the drying fan, and the air outlet end of the drying fan faces the dishes on the conveying assembly 16; the drying heating element is used to heat the air in the rinsing chamber 12, and when the drying fan is running, it can blow hot air towards the dishes, thereby drying the dishes.

[0065] In this embodiment, both the drying fan and the drying heating element are connected to the control mechanism 4. The control mechanism 4 can monitor the operating status of the drying fan and the drying heating element so that they can operate in a timely manner to meet work requirements.

[0066] Based on any of the above embodiments, the washing mechanism 1 is further extended; a chuck and a sensor switch are provided at the outlet end of the washing mechanism 1. The chuck can block the bowls on the conveying component 16 to prevent the bowls from falling off the conveying component 16; the sensor switch is provided on the chuck and is used to sense whether there are bowls at the outlet end and to feed back the sensing information to the control mechanism 4. When the control mechanism 4 receives that the chuck has blocked the bowls, it will control the motor of the conveying component 16 to stop running, thereby preventing the conveying component 16 from continuing to run and causing blockage if the outlet end is blocked.

[0067] Furthermore, a prompting mechanism can be added, which is connected to the control mechanism 4. When any part of the dishwasher requires manual operation, the control mechanism 4 sends a command to the prompting mechanism to remind the user to operate in a timely manner, ensuring the dishwasher's working efficiency. For example, when the chuck blocks the dishes, the prompting mechanism can issue a prompt to remove the dishes.

[0068] In this application, the control mechanism 4 includes a control panel located on the front of the dishwasher. The control panel can control the operating status of the heat pump system 3, the water supply mechanism 2, the cleaning mechanism 1, and the heating device 5. The control panel can display the current temperature values ​​in the main washing water tank 21 and the heating pack 29, so that the staff can quickly and timely understand the current operating status of the dishwasher and improve the ease of use of the cleaning machine.

[0069] The actual operation of a dishwasher is as follows: it consists of two processes, namely preparation and the actual washing. The dishwasher can only begin washing the dishes after the preparation is completed, as detailed below: During preparation, the dishwasher is powered on, and both the temperature detection mechanism and the water level detection mechanism are running; When the first water level sensor in the buffer tank 23 does not detect liquid, the control mechanism 4 controls the main water valve to open, and water enters the buffer tank 23. When the first water level sensor in the buffer water tank 23 detects liquid, the control mechanism 4 controls the water injection valve to operate, so as to inject water into the main washing water tank 21 and the heating pack 29, and the control mechanism 4 simultaneously controls the heat pump system 3 to operate. When the second water level sensor in the main wash tank 21 detects liquid at a low water level, the control mechanism 4 controls the heating device 5 in the heating pack 29 to operate, preheating the water in the final rinse arm 15. At the same time, the heat pump system 3 heats the liquid in the inlet pipe 24, so that the liquid flowing into the main wash tank 21 can be heated. When the second water level sensor in the main wash water tank 21 detects liquid, the control mechanism 4 controls the water injection valve to close, and the buffer water tank 23 stops injecting water into the main wash water tank 21. When the temperature in the main water tank 21 reaches the water usage setting value and the liquid temperature in the heating pack 29 reaches the water usage setting value, the dishwasher completes the preparation work. During normal operation, when the second water level sensor in the buffer water tank 23 detects liquid at a high water level, the dishwasher control conveyor assembly 16 operates and controls the cleaning water pump, the first rinsing water pump, the second rinsing water pump, the sensor switch, the drying fan, and the drying heating element to all operate. When the sensor switch detects that the chuck is blocking the bowl, the control mechanism 4 controls the transmission component 16, the cleaning water pump, the first rinsing water pump and the second rinsing water pump to stop running until the sensor switch reports that there is no obstruction and then resumes operation. When the motor of the conveyor assembly 16 is disconnected due to overload, the dishwasher's cleaning mechanism 1, heat pump system 3, and water supply mechanism 2 all stop operating until the motor overload problem resolution circuit of the conveyor assembly 16 is turned on.

[0070] When the control mechanism 4 receives a signal that the dishwasher has stopped working, the control mechanism 4 controls all components such as the cleaning mechanism 1, the heat pump system 3, the water supply mechanism 2, the temperature detection mechanism, the water level detection mechanism, and the heating device 5 to stop operating.

[0071] In this application, with the cooperation of various mechanisms, the dishwasher has the advantages of high efficiency, energy saving and automation. The heat pump system 3, in conjunction with the cleaning mechanism 1, can recover the heat of the cleaning mechanism 1 to heat the liquid in the water supply mechanism 2. The heated liquid then supplies water to the cleaning mechanism 1 to improve the cleaning effect of the cleaning mechanism 1. Thus, the dishwasher has the characteristics of heat circulation, heat recovery and water circulation. Furthermore, the cleaning mechanism 1, the heat pump system 3 and the water supply mechanism 2 are all connected to the control mechanism 4. Under the action of the control mechanism 4, the above-mentioned heat circulation, heat recovery and water circulation can be automatically realized, reducing the need for manual labor and improving the convenience of use.

[0072] It should be noted that the various embodiments of this application can be arbitrarily combined into new embodiments, provided that the solutions do not conflict and the technical solutions can coexist.

[0073] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A dishwasher, characterized in that, include: The cleaning unit (1) includes a cleaning chamber (11) and a rinsing chamber (12) for cleaning and rinsing dishes; Water supply unit (2) is used to supply water to cleaning unit (1); The heat pump system (3) is located on top of the cleaning mechanism (1) and is used to recover the heat from the inlet and outlet of the cleaning mechanism (1) to heat the liquid in the water supply mechanism (2). The control mechanism (4) is used to control the operating status of the cleaning mechanism (1), the water supply mechanism (2), and the heat pump system (3).

2. The dishwasher according to claim 1, characterized in that, The water supply unit (2) includes: The main washing water tank (21) is used to collect the washing water from the washing chamber (11); Rinse water tank (22) is used to collect washing water from rinsing chamber (12); The buffer tank (23) is used to store dishwashing water and supply water to the main wash tank (21) and the rinsing tank (22); The inlet pipe (24) is used to guide the liquid in the buffer water tank (23) to the main wash water tank (21); The heat pump system (3) is used to heat the liquid in the water inlet pipe (24).

3. The dishwasher according to claim 2, characterized in that, The cleaning mechanism (1) includes: A cleaning arm (13) is located inside a cleaning chamber (11); the main water tank (21) is used to supply water to the cleaning arm (13); A pre-rinsing arm (14) is located inside the rinsing chamber (12); the rinsing water tank (22) is used to supply water to the pre-rinsing arm (14); The final rinse arm (15) is located inside the rinse chamber (12); the water inlet pipe (24) is used to supply water to the final rinse arm (15); A cleaning water pump is used to control whether the main washing water tank (21) supplies water to the cleaning arm (13); The first rinsing water pump is used to control whether the rinsing water tank (22) supplies water to the prerinsing arm (14); The second rinsing water pump is used to control whether the rinsing water tank (22) supplies water to the final rinsing arm (15).

4. The dishwasher according to claim 3, characterized in that, The water supply unit (2) also includes: The first supply pipe (25) is used to guide the liquid in the main wash tank (21) to the washing arm (13); The second supply pipe (26) is used to guide the liquid in the rinsing water tank (22) to the pre-rinsing arm (14); The third supply pipe (27) is used to guide the heated liquid in the inlet pipe (24) to the final rinse arm (15); The fourth supply pipe (28) is used to guide the heated liquid in the inlet pipe (24) to the buffer tank (23); The heating pack (29) is connected in series with the third supply pipe (27), and a heating device (5) is installed inside it. The fourth water supply pipe (28) is located at least partially inside the main water tank (21).

5. The dishwasher according to any one of claims 1 to 4, characterized in that, The cleaning mechanism (1) further includes: The drying fan is located in the rinsing chamber (12); The drying heating element is located in the rinsing chamber (12) at the air inlet of the drying fan and is used to heat the air. The control mechanism (4) is connected to the drying fan and the drying heating element.

6. The dishwasher according to claim 5, characterized in that, The cleaning mechanism (1) further includes: A conveying assembly (16) is used to convey the dishes from the inlet end of the washing mechanism (1) to the outlet end; An induction switch is installed at the outlet end of the cleaning mechanism (1) to sense whether there are bowls at the outlet end and transmit the sensing information to the control mechanism (4). The control mechanism (4) is used to control the operating status of the transmission component (16) based on the sensing information.

7. The dishwasher according to any one of claims 2 to 4, characterized in that, Also includes: Temperature detection mechanism is used to detect the liquid temperature inside the water supply mechanism (2) and transmit the temperature value to the control mechanism (4). The control mechanism (4) is used to control the operating status of the heat pump system (3), the cleaning mechanism (1), and the water supply mechanism (2) according to the temperature value; And / or, The water level detection mechanism is used to detect the water level in the water supply mechanism (2) and transmit the water level information to the control mechanism (4). The control mechanism (4) is used to control the operating status of the water supply mechanism (2), the cleaning mechanism (1), and the heat pump system (3) according to the water level information.

8. The dishwasher according to claim 7, characterized in that, The temperature detection mechanism includes: The first temperature sensor is located inside the main washing water tank (21); The second temperature sensor is located inside the heating pack (29); the control mechanism (4) is used to control the operating status of the heating device (5) according to the detection value of the second temperature sensor.

9. The dishwasher according to claim 7, characterized in that, The water level detection mechanism includes: The first water level sensor is located inside the buffer tank (23); the water inlet of the buffer tank (23) is equipped with a main water valve, and the control mechanism (4) is used to control the operation status of the main water valve according to the detection information of the first water level sensor. The second water level sensor is located inside the main washing water tank (21); a water injection valve is provided between the main washing water tank (21) and the water inlet pipe (24), and the control mechanism (4) is used to control the operation status of the water injection valve according to the detection information of the second water level sensor.

10. The dishwasher according to claim 1, characterized in that, The heat pump system (3) includes: The heat collection chamber (31) is located on top of the cleaning mechanism (1) and has air intakes at both ends; The heat pump assembly (32) is located in the heat collection chamber (31) and is used to recover heat from the hot air and exchange it with the water supply mechanism (2). The air intake assembly (33) is located at the air intake and is used to draw the hot air overflowing from the inlet and outlet of the cleaning mechanism (1) into the heat collection chamber (31).

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