Tableware treatment device and tableware treatment control method

Abstract

A tableware treatment device, comprising: a housing (110), an air return channel (120), a fan (132), a first heat exchanger (134), a second heat exchanger (136), a first throttling device (140), a heat pump channel (150), a circulating pump (152), a third heat exchanger (154), a compressor (160), a first reversing valve (172), and a second reversing valve (174). The housing (110) is provided with an accommodation cavity (112), and an air outlet (113), an air return port (114), a water outlet (115) and water return ports (116) that are in communication with the accommodation cavity (112), and the accommodation cavity (112) is used for accommodating tableware; the air return channel (120) is in communication with the air outlet (113) and the air return port (114), the heat exchanger is arranged close to the air outlet (113), the second heat exchanger (136) is arranged close to the air return port (114), and the first throttling device (140) is connected between the first heat exchanger (134) and the second heat exchanger (136); the heat pump channel (150) is in communication with the water outlet (115) and the water return ports (116), a first heat exchange valve is separately connected to an outlet (164) of the compressor (160), the second heat exchanger (136) and the third heat exchanger (154), so as to connect the outlet (164) of the compressor (160) and the second heat exchanger (136) or the third heat exchanger (154); and the second reversing valve (174) is separately connected to the first heat exchanger (134), the second heat exchanger (136) and the third heat exchanger (154), so as to connect the third heat exchanger (154) and the second heat exchanger (136) or the first heat exchanger (134).

Description

Tableware processing device and tableware processing control method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311751244.9 filed on December 19, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the technical field of electrical equipment, and in particular to a tableware processing device and a tableware processing control method. Background Art

[0004] Tableware processing devices are intelligent household appliances that replace manual tableware processing and are currently widely used. During the tableware washing process, washing water needs to be transported to each rotating spray arm through a circulating pump to continuously spray and wash the tableware, thereby achieving the purpose of cleaning the tableware. In order to further shorten the washing time of the tableware processing device, the washing system of existing tableware processing devices will use an electric heater to increase the temperature of the washing water. When the washing water is circulated and sprayed on the tableware, the high-temperature washing water washes away the contaminants on the tableware and brings heat to the tableware, so that the tableware processing device can achieve a higher cleaning rate and drying rate in a shorter washing time. Since the heating energy consumption of the washing water accounts for more than 80% of the energy consumption of the entire tableware processing device during the entire working cycle, reducing the heating energy consumption of the washing water is a key technical direction for reducing the energy consumption of the tableware processing device. In related technologies, the heating efficiency of the tableware processing device is low, resulting in high energy consumption of the tableware processing device.

[0005] Summary of the Invention

[0006] The present disclosure aims to at least to some extent solve the technical problems of low efficiency and high energy consumption of heat pumps. To this end, the present disclosure provides a tableware processing device and a tableware processing control method.

[0007] According to a first aspect of the present disclosure, a dishware processing device is provided, comprising: a shell having a accommodating cavity, an air outlet, a return air outlet, a water outlet and a return water outlet connected to the accommodating cavity, the accommodating cavity being used to accommodate dishware; a return air duct, a fan, a first heat exchanger, a second heat exchanger and a first throttling device, the return air duct being connected to the air outlet and the return air outlet, the fan, the first heat exchanger and the second heat exchanger being all arranged in the return air duct, the first heat exchanger being arranged close to the air outlet, the second heat exchanger being arranged close to the return air outlet, the first throttling device being connected to the first heat exchanger and the second heat exchanger heat exchanger; a heat pump channel, a circulation pump and a third heat exchanger, the heat pump channel is communicated with the water outlet and the return water port, the circulation pump and the third heat exchanger are arranged in the heat pump channel; and a compressor, a first reversing valve and a second reversing valve, the first heat exchange valve is respectively connected to the outlet of the compressor, the second heat exchanger and the third heat exchanger, and can conduct the outlet of the compressor with the second heat exchanger or the third heat exchanger; the second reversing valve is respectively connected to the first heat exchanger, the second heat exchanger and the third heat exchanger, and can conduct the third heat exchanger with the second heat exchanger or the first heat exchanger.

[0008] In a drying system, if the second heat exchanger acts as a condenser and the first heat exchanger acts as an evaporator, the power of the second heat exchanger is higher than that of the first. When the second heat exchanger acts as an evaporator and is connected to the third heat exchanger, the power of the heat pump system is higher than when the first heat exchanger acts as an evaporator and is connected to the third heat exchanger. During the washing process, the power requirements of the heat pump system vary depending on the washing mode and actual load capacity. Therefore, the first or second heat exchanger can be selected based on the operating parameters of the dishwashing device, thereby increasing heat pump power and reducing overall energy consumption.

[0009] In some embodiments, the second reversing valve includes a first connecting port, a second connecting port, and a third connecting port.

[0010] In some embodiments, the first connection port is in communication with the first heat exchanger.

[0011] In some embodiments, the second connection port is in communication with the second heat exchanger.

[0012] In some embodiments, the third connection port is in communication with the third heat exchanger.

[0013] In some embodiments, the dishware processing device further comprises a second throttling device.

[0014] In some embodiments, the second throttling device is connected between the second heat exchanger and the third heat exchanger.

[0015] In some embodiments, the first connecting port is connected between the second heat exchanger and the first throttling device.

[0016] In some embodiments, the first reversing valve includes a first communication port, a second communication port, and a third communication port.

[0017] In some embodiments, the first communication port is in communication with an outlet of the compressor.

[0018] In some embodiments, the second communication port is in communication with the second heat exchanger.

[0019] In some embodiments, the third communication port is in communication with the third heat exchanger.

[0020] In some embodiments, the return air duct is provided with an air inlet and an air outlet.

[0021] In some embodiments, the air inlet is disposed between the first heat exchanger and the air outlet.

[0022] In some embodiments, the exhaust port is disposed between the second heat exchanger and the return air port.

[0023] In some embodiments, when the circulation pump is started, the air inlet and the air outlet are opened, and the air outlet and the return air outlet are closed.

[0024] In some embodiments, the dishware processing device further includes a first air valve.

[0025] In some embodiments, the first air valve is disposed between the air outlet and the air inlet.

[0026] In some embodiments, the first air valve can connect the air outlet with the return air channel and disconnect the air inlet from the return air channel, or disconnect the air outlet from the return air channel and connect the air inlet with the return air channel.

[0027] In some embodiments, the dishware processing device further includes a second air valve disposed between the air outlet and the air return outlet.

[0028] In some embodiments, the second air valve can connect the exhaust port with the return air channel and disconnect the return air port from the return air channel, or the second air valve can disconnect the exhaust port from the return air channel and connect the return air port with the return air channel.

[0029] In some embodiments, the air outlet and the air return outlet are arranged on the same side of the housing.

[0030] In some embodiments, the second heat exchanger is connected to the inlet of the compressor.

[0031] In some embodiments, the first throttling device includes: a plurality of throttling components.

[0032] In some embodiments, the throttling assembly includes a throttling valve and a control valve connected in series with the throttling valve.

[0033] In some embodiments, the control valve of at least one throttle assembly among the plurality of throttle assemblies is connected in parallel with at least one of the other throttle assemblies.

[0034] In some embodiments, the plurality of throttle assemblies includes a first throttle assembly and a second throttle assembly.

[0035] In some embodiments, the first throttle assembly includes a first throttle valve and a first control valve.

[0036] In some embodiments, the second throttle assembly includes a second throttle valve and a second control valve.

[0037] In some embodiments, the first control valve is connected in series with the first throttle valve.

[0038] In some embodiments, the second control valve is connected in series with the second throttle valve.

[0039] In some embodiments, the second control valve is connected in parallel with the first throttle valve and the first control valve.

[0040] In some embodiments, the first control valve, the first throttle valve, and the second throttle valve are connected in sequence. A first connection point is provided between the first throttle valve and the second throttle valve, and one end of the second control valve is connected to the first connection point.

[0041] In some embodiments, one end of the second control valve away from the first connection point is connected to one end of the first control valve away from the first throttle valve to form an input point, and one end of the second throttle valve away from the first throttle valve forms an output point.

[0042] In some embodiments, the first throttle valve is connected in series with the second throttle valve.

[0043] According to the second aspect of the present disclosure, a tableware processing control method is provided, which is applied to the tableware processing device provided in the first aspect, and the tableware processing control method includes: responding to the heating signal of the tableware processing device, controlling the circulation pump to start, and controlling the first reversing valve to connect the outlet of the compressor with the third heat exchanger; obtaining the operating parameters of the tableware processing device; judging whether the conditions for the third heat exchanger and the second heat exchanger to be connected are met based on the operating parameters; if the conditions for the third heat exchanger and the second heat exchanger to be connected are met, controlling the second reversing valve to connect the third heat exchanger and the second heat exchanger; and if the conditions for the third heat exchanger and the second heat exchanger to be connected are not met, controlling the second reversing valve to connect the third heat exchanger and the first heat exchanger.

[0044] The beneficial effects of the tableware processing control method provided in the second aspect are the same as the beneficial effects of the tableware processing device provided in the first aspect, and will not be repeated here.

[0045] In some embodiments, determining whether the condition for the third heat exchanger and the second heat exchanger to be conductive is met based on the operating parameters includes: obtaining the heating temperature value carried in the heating signal, and the operating parameters include the heating temperature value; and determining whether the heating temperature value is greater than or equal to the set temperature value; if the heating temperature value is greater than or equal to the set temperature value, determining that the condition for the third heat exchanger and the second heat exchanger to be conductive is met; if the heating temperature value is less than the set temperature value, determining that the condition for the third heat exchanger and the second heat exchanger to be conductive is not met.

[0046] In some embodiments, determining whether the condition for the third heat exchanger and the second heat exchanger to be connected is met based on the operating parameters includes: obtaining image information in the accommodating cavity, the operating parameters including image information; determining whether the tableware in the accommodating cavity is greater than or equal to a set loading capacity based on the image information; if the tableware in the accommodating cavity is greater than or equal to the set loading capacity, determining that the condition for the third heat exchanger and the second heat exchanger to be connected is met; and if the tableware in the accommodating cavity is less than the set loading capacity, determining that the condition for the third heat exchanger and the second heat exchanger to be connected is not met.

[0047] In some embodiments, determining whether the condition for conduction between the third heat exchanger and the second heat exchanger is met based on the operating parameters includes: determining whether the heating signal is an accelerated heating signal; if the heating signal is an accelerated heating signal, determining that the condition for conduction between the third heat exchanger and the second heat exchanger is met; and if the heating signal is not the accelerated heating signal, determining that the condition for conduction between the third heat exchanger and the second heat exchanger is not met. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0049] FIG1 shows a schematic structural diagram of a dishware processing device in a drying mode according to some embodiments of the present disclosure.

[0050] FIG2 shows a schematic structural diagram of a second heat exchanger serving as an evaporator when the dishware processing apparatus is in a heat pump mode according to some embodiments of the present disclosure.

[0051] FIG3 shows a schematic structural diagram of a first heat exchanger serving as an evaporator when the dishware processing apparatus is in a heat pump mode according to some embodiments of the present disclosure.

[0052] FIG4 shows a schematic structural diagram of a first throttling device of a tableware processing device according to some embodiments of the present disclosure.

[0053] FIG5 shows another structural schematic diagram of the first throttling device of the tableware processing device according to some embodiments of the present disclosure.

[0054] FIG6 shows a flow chart of a tableware processing control method according to some embodiments of the present disclosure.

[0055] FIG7 shows a flowchart of steps S312 to S318 of a tableware processing control method according to some embodiments of the present disclosure.

[0056] FIG8 shows a flowchart of steps S322 to S328 of a tableware processing control method according to some embodiments of the present disclosure.

[0057] FIG9 shows a flowchart of steps S332 to S336 of a tableware processing control method according to some embodiments of the present disclosure.

[0058] Reference numerals: 100, tableware processing device; 110, housing; 112, accommodating chamber; 113, air outlet; 114, air return outlet; 115, water outlet; 116, water return outlet;

[0059] 120, return air duct; 121, air inlet; 123, air outlet; 125, first air valve; 126, second air valve;

[0060] 132. Fan; 134. First heat exchanger; 136. Second heat exchanger;

[0061] 140, first throttling device; 141, throttling assembly; 141a, throttle valve; 141b, control valve;

[0062] 142, first throttle assembly; 142a, first throttle valve; 142b, first control valve; 143, second throttle assembly; 143a, second throttle valve; 143b, second control valve; 145, third throttle assembly; 145a, third throttle valve; 145b, third control valve; 146a, first connection point; 146b, input point; 146c, output point;

[0063] 150. Heat pump channel; 152. Circulation pump; 154. Third heat exchanger; 160. Compressor; 162. Inlet; 164. Outlet; 172. First reversing valve; 172a. First connecting port; 172b. Second connecting port; 172c. Third connecting port; 174. Second reversing valve; 174a. First connecting port; 174b. Second connecting port; 174c. Third connecting port; 190. Second throttling device. DETAILED DESCRIPTION

[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0065] It should be noted that all directional indications in the embodiments of the present disclosure are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0066] In this disclosure, unless otherwise expressly specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two elements or an interaction between two elements, unless otherwise expressly specified. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0067] In addition, in the present disclosure, descriptions such as "first" and "second" are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present disclosure.

[0068] The tableware processing device is an intelligent household appliance that replaces manual tableware processing and is currently widely used. During the tableware washing process, washing water needs to be transported to each rotating spray arm through a circulation pump to continuously spray and wash the tableware, thereby achieving the purpose of cleaning the tableware. In order to further shorten the washing time of the tableware processing device, the washing system of the existing tableware processing device will use an electric heater to increase the temperature of the washing water. When the washing water is circulated and sprayed on the tableware, the high-temperature washing water will wash away the contaminants on the tableware and bring heat to the tableware, so that the tableware processing device can achieve a higher cleaning rate and drying rate in a shorter washing time. Since the heating energy consumption of the washing water accounts for more than 80% of the energy consumption of the entire tableware processing device during the entire working cycle, reducing the heating energy consumption is a key technical direction for reducing the energy consumption of the tableware processing device.

[0069] In related technologies, dishware processing devices have low heating efficiency, resulting in high energy consumption. The dishware processing devices and dishware processing control methods according to some embodiments of the present disclosure can improve this problem. According to some embodiments of the present disclosure, the dishware processing devices and dishware processing control methods can improve heat pump efficiency and reduce overall energy consumption.

[0070] The technical solution of the present disclosure will be described below with reference to the accompanying drawings and specific embodiments.

[0071] As shown in FIG1 , an embodiment of the present disclosure provides a dishware processing device 100 . According to some embodiments of the present disclosure, the dishware processing device 100 can improve the efficiency of the heat pump and reduce the energy consumption of the entire device.

[0072] As shown in Figures 2 and 3, in some embodiments, the dishware processing device 100 includes: a shell 110, a return air duct 120, a fan 132, a first heat exchanger 134, a second heat exchanger 136, a first throttling device 140, a heat pump channel 150, a circulation pump 152, a third heat exchanger 154, a compressor 160, a first reversing valve 172, and a second reversing valve 174.

[0073] The housing 110 has a receiving chamber 112, an air outlet 113, an air return port 114, a water outlet 115, and a water return port 116 that are in communication with the receiving chamber 112. The receiving chamber 112 is used to receive tableware.

[0074] Return air duct 120 communicates with air outlet 113 and return air vent 114. A fan 132, a first heat exchanger 134, and a second heat exchanger 136 are all disposed within return air duct 120. First heat exchanger 134 is disposed near air outlet 113. Second heat exchanger 136 is disposed near return air vent 114. A first throttling device 140 is connected between first heat exchanger 134 and second heat exchanger 136.

[0075] The heat pump channel 150 is in communication with the water outlet 115 and the water return port 116 . A circulation pump 152 and a third heat exchanger 154 are disposed in the heat pump channel 150 .

[0076] The first reversing valve 172 is connected to the outlet 164 of the compressor 160, the second heat exchanger 136, and the third heat exchanger 154, respectively, and can conduct electricity between the outlet 164 of the compressor 160 and the second heat exchanger 136 or the third heat exchanger 154. The second reversing valve 174 is connected to the first heat exchanger 134, the second heat exchanger 136, and the third heat exchanger 154, respectively, and can conduct electricity between the third heat exchanger 154 and the second heat exchanger 136 or the first heat exchanger 134.

[0077] The housing 110 is the main body of the dishware processing device 100 and serves as the installation base for the dishware processing device 100. The housing 110 can provide an installation base for other components of the dishware processing device 100 and can also play a certain protective role for other components of the dishware processing device 100.

[0078] The accommodating chamber 112 is primarily used to accommodate tableware. Multiple layers of baskets can be placed within the accommodating chamber 112. Tableware can be placed on the baskets. The spacing between the baskets can vary, allowing for the storage of different types of tableware.

[0079] Return air duct 120 connects to air outlet 113 and return air duct 114, forming a drying branch. After the dishes are cleaned, they can be dried through return air duct 120. Heat pump duct 150 is primarily used to heat wash water, which is then sprayed onto the dishes to achieve the desired cleanliness.

[0080] In some embodiments, the compressor 160, the first heat exchanger 134, the second heat exchanger 136, and the first throttling device 140 form part of a drying system. The first heat exchanger 134 is located near the air outlet 113, the second heat exchanger 136 is located near the return air outlet 114, and the outlet 164 of the compressor 160 is connected to the second heat exchanger 136. When the hot and humid gas in the accommodating chamber 112 enters the return air duct 120, it first passes through the first heat exchanger 134. After heat exchange in the first heat exchanger 134, the moisture in the hot and humid gas condenses, thereby forming dry and cold gas. After heat exchange in the second heat exchanger 136, the dry and cold gas becomes dry and hot gas, and then the dry and hot gas enters the accommodating chamber 112 from the return air outlet 114.

[0081] Compressor 160, first heat exchanger 134, second heat exchanger 136, and first throttling device 140 form a complete drying system. Outlet 164 of compressor 160 is also connected to third heat exchanger 154. When wash water in accommodating chamber 112 enters heat pump passage 150, it is heated by third heat exchanger 154 before entering accommodating chamber 112 through return water inlet 116.

[0082] In some embodiments, a first reversing valve 172 and a second reversing valve 174 are used in conjunction. When the first reversing valve 172 connects the outlet 164 of the compressor 160 with the second heat exchanger 136, the drying system operates. When the first heat exchange valve connects the outlet 164 of the compressor 160 with the third heat exchanger 154, the heat pump system operates. Furthermore, the second reversing valve 174 can connect either the second heat exchanger 136 or the first heat exchanger 134, allowing either the first heat exchanger 134 or the second heat exchanger 136 to be selected as the evaporator.

[0083] In the drying system, the second heat exchanger 136 functions as a condenser and the first heat exchanger 134 functions as an evaporator. Therefore, the power of the second heat exchanger 136 is higher than that of the first heat exchanger 134. When the second heat exchanger 136 functions as an evaporator and is connected to the third heat exchanger 154, the power of the heat pump system is higher than when the first heat exchanger 134 functions as an evaporator and is connected to the third heat exchanger 154. During the washing process, the power requirements for the heat pump system vary depending on the washing mode, actual load capacity, and other factors. Therefore, the first heat exchanger 134 or the second heat exchanger 136 can be selected based on the operating parameters of the dishware processing device 100, thereby increasing the heat pump power and reducing overall energy consumption.

[0084] In some embodiments, for the convenience of description, the process of the compressor 160, the first heat exchanger 134, and the second heat exchanger 136 drying the hot and humid air is defined as a drying mode, and the process of the compressor 160, the third heat exchanger 154, the first heat exchanger 134 or the second heat exchanger 136 heating the washing water is defined as a heat pump mode.

[0085] In some embodiments, the second reversing valve 174 includes a first connection port 174a communicating with the first heat exchanger 134 , a second connection port 174b communicating with the second heat exchanger 136 , and a third connection port 174c communicating with the third heat exchanger 154 .

[0086] The second reversing valve 174 is a three-way valve, with three ports, one for input and two for output. The third connection port 174c can be connected to the second connection port 174b or to the first connection port 174a. When the third connection port 174c is connected to the first connection port 174a, the third heat exchanger 154 is connected to the first heat exchanger 134, so that the first heat exchanger 134 functions as an evaporator and forms a heat pump system with the third heat exchanger 154. When the third connection port 174c is connected to the second connection port 174b, the second heat exchanger 136 functions as an evaporator and forms a heat pump system with the third heat exchanger 154.

[0087] In some embodiments, the dishware processing apparatus 100 may further include a second throttling device 190 . The second throttling device 190 is connected between the second heat exchanger 136 and the third heat exchanger 154 . The first connecting port 174 a is connected between the second heat exchanger 136 and the first throttling device 140 .

[0088] The first throttling device 140 is a throttling component of the drying system, and the second throttling device 190 is a throttling component of the heat pump system. When the first heat exchanger 134 is connected to the third heat exchanger 154, the first throttling device 140 serves as a throttling component of the heat pump system.

[0089] In other embodiments, the dishware processing device 100 may be provided with only the first throttling device 140, and may not be provided with the second throttling device 190. The first throttling device 140 may serve as a throttling component of the drying system or a throttling component of the heat pump system.

[0090] In some embodiments, the first reversing valve 172 may include a first communication port 172a communicating with the outlet 164 of the compressor 160, a second communication port 172b communicating with the second heat exchanger 136, and a third communication port 172c communicating with the third heat exchanger 154.

[0091] The first heat exchange valve functions as a switching valve between the drying and heat pump functions. When the first communication port 172a is connected to the second communication port 172b, the high-temperature, high-pressure heat exchange medium flowing out of the outlet 164 of the compressor 160 enters the second heat exchanger 136, drying the gas entering the return air duct 120. When the first communication port 172a is connected to the third communication port 172c, the high-temperature, high-pressure heat exchange medium flowing out of the outlet 164 of the compressor 160 enters the third heat exchanger 154, heating the wash water in the heat pump duct 150.

[0092] In some embodiments, the return air duct 120 is provided with an air inlet 121 and an air outlet 123. The air inlet 121 is provided between the first heat exchanger 134 and the air outlet 113, and the air outlet 123 is provided between the second heat exchanger 136 and the return air vent 114. When the circulation pump 152 is started, the air inlet 121 and the air outlet 123 are opened, and the air outlet 113 and the return air vent 114 are closed.

[0093] When the heat pump system of the dishware processing device 100 is in operation, the circulation pump 152 is activated. One of the first heat exchanger 134 and the second heat exchanger 136 operates as an evaporator, while the other does not operate, resulting in the air in the return air duct 120 being cold air. To prevent cold air from entering the accommodating chamber 112, the air outlet 113 and the return air vent 114 can be closed. That is, when the circulation pump 152 is activated, the air inlet 121 and the air outlet 123 are opened, allowing external air to enter the return air duct 120, exchange heat with the first heat exchanger 134 or the second heat exchanger 136, and then be discharged from the air outlet 123.

[0094] Since both the first heat exchanger 134 and the second heat exchanger 136 can serve as evaporators, the exhaust port 123 can be disposed between the second heat exchanger 136 and the return air port 114 . That is, the air inlet 121 is disposed close to the air outlet 113 , and the exhaust port 123 is disposed close to the return air port 114 .

[0095] In some embodiments, the dishware processing device 100 may further include a first air valve 125. The first air valve 125 is disposed between the air outlet 113 and the air inlet 121. The first air valve 125 can connect the air outlet 113 with the return air duct 120 and disconnect the air inlet 121 from the return air duct 120, or disconnect the air outlet 113 from the return air duct 120 and connect the air inlet 121 to the return air duct 120.

[0096] Since the air inlet 121 and the air outlet 113 are located close to each other and the air outlet 113 and the air inlet 121 are not opened or closed at the same time, during operation, either the air outlet 113 is opened and the air inlet 121 is closed, or the air outlet 113 is closed and the air inlet 121 is opened, only one air valve can be provided to jointly control the air inlet 121 and the air outlet 113. The first air valve 125 is provided between the air inlet 121 and the air outlet 113. Thus, when the dishware processing device 100 is in the drying mode, the first air valve 125 can open the air outlet 113 and close the air inlet 121, allowing the hot and humid air in the accommodating chamber 112 to enter the return air duct 120. When the dishware processing device 100 is in the heat pump mode, the first air valve 125 closes the air outlet 113 and opens the air inlet 121.

[0097] In some embodiments, the dishware processing device 100 further includes a second air valve 126. The second air valve 126 is disposed between the exhaust port 123 and the return air port 114. The second air valve 126 can connect the exhaust port 123 with the return air passage 120 and disconnect the return air port 114 from the return air passage 120, or disconnect the exhaust port 123 from the return air passage 120 and connect the return air port 114 to the return air passage 120.

[0098] Since the return air inlet 114 and the exhaust air outlet 123 are located close to each other and are not opened or closed at the same time, during operation, either the exhaust air outlet 123 is opened and the return air inlet 114 is closed, or the exhaust air outlet 123 is closed and the return air inlet 114 is opened. Therefore, only one air valve can be provided to jointly control the return air inlet 114 and the exhaust air outlet 123, and the second air valve 126 is provided between the return air inlet 114 and the exhaust air outlet 123. When the dishware processing device 100 is in the drying mode, the second air valve 126 opens the return air inlet 114 and closes the exhaust air outlet 123, allowing the dry and hot air in the return air duct 120 to flow back into the accommodating chamber 112. When the dishware processing device 100 is in the heat pump mode, the second air valve 126 closes the return air inlet 114 and opens the exhaust air outlet 123, allowing the dry and cold air in the return air duct 120 to be discharged from the exhaust air outlet 123 to the outside of the return air duct 120.

[0099] That is to say, when the dishware processing device 100 is in the drying mode, the first air valve 125 opens the air outlet 113 and closes the air inlet 121, and the second air valve 126 opens the return air port 114 and closes the exhaust port 123, so that the hot and humid gas in the accommodating chamber 112 can enter the return air channel 120 through the air outlet 113, and form dry hot gas after being dried by the first heat exchanger 134 and the second heat exchanger 136. The dry hot gas in the return air channel 120 can flow back to the accommodating chamber 112 through the return air port 114. When the dishware processing device 100 is in the heat pump mode, the first air valve 125 closes the air outlet 113 and opens the air inlet 121, and the second air valve 126 closes the return air port 114 and opens the exhaust port 123. The external air enters the return air duct 120 through the air inlet 121, and forms dry and cold gas through heat exchange in the first heat exchanger 134 or the second heat exchanger 136. The dry and cold gas in the return air duct 120 is then discharged from the exhaust port 123 to the outside of the return air duct 120.

[0100] In some embodiments, the air outlet 113 and the return air outlet 114 are disposed on the same side of the housing 110. This facilitates the arrangement of the return air duct 120, reduces the space occupied by the return air duct 120, and makes the dishware processing device 100 more compact, allowing more space to be used to accommodate dishes, thereby increasing the capacity of the dishware processing device 100.

[0101] In some embodiments, the second heat exchanger 136 is connected to the inlet 162 of the compressor 160. When the dishware processing apparatus 100 is in heat pump mode, both the first heat exchanger 134 and the second heat exchanger 136 can function as evaporators. When the second heat exchanger 136 functions as an evaporator, the heat exchange medium flowing out of the second heat exchanger 136 needs to flow back into the compressor 160. Therefore, the second heat exchanger 136 can be directly connected to the inlet 162 of the compressor 160 to ensure the return of the heat exchange medium.

[0102] As shown in FIG4 , in some embodiments, the first throttling device 140 may include: multiple throttling assemblies, and the throttling assembly 141 includes: a throttling valve 141a and a control valve 141b connected in series with the throttling valve 141a. The multiple throttling valves 141a are connected in series, and the control valve 141b of at least one throttling assembly 141 is connected in parallel with at least one other throttling assembly 141.

[0103] Each throttle assembly 141 may include a throttle valve 141a and a control valve 141b connected in series therewith. If the control valve 141b of at least one throttle assembly 141 is connected in parallel with at least one other throttle assembly 141, it means that the control valve 141b of one throttle assembly 141 in the throttle assembly 141 is connected in parallel with another throttle assembly 141. If the control valve 141b is opened, the other throttle assembly 141 is short-circuited, and only the throttle valve 141a corresponding to the control valve 141b can be turned on. If the control valve 141b is closed and the control valve 141b of the throttle assembly 141 connected in parallel with the control valve 141b is opened, the two throttle valves 141a can be turned on at the same time. It can be seen from this that by coordinating multiple control valves 141b, different numbers of throttle valves 141a can be turned on, thereby adjusting different flow rates. The number of throttle valves 141 a is adjusted by coordinating different control valves 141 b to adjust the flow rate, so that there is no need to set throttle valves 141 a with different flow rates, thereby reducing the variable flow cost.

[0104] The opening degrees of the multiple throttle valves 141a can be the same or different, and the flow rate can be adjusted by the number of connected valves.

[0105] In order to explain the above structure more clearly, two throttling components are used as examples below.

[0106] In some embodiments, the plurality of throttle assemblies may include a first throttle assembly 142 and a second throttle assembly 143. The first throttle assembly 142 may include a first throttle valve 142a and a first control valve 142b. The second throttle assembly 143 may include a second throttle valve 143a and a second control valve 143b. The first control valve 142b is connected in series with the first throttle valve 142a, the second control valve 143b is connected in series with the second throttle valve 141a, and the second control valve 143b is connected in parallel with the first throttle valve 142a and the first control valve 142b.

[0107] That is, second control valve 143b is connected to both ends of first throttle assembly 142, and is connected in parallel with the entire first throttle assembly 142. When first control valve 142b is open and second control valve 143b is closed, first throttle valve 142a and second throttle valve 141a operate simultaneously, limiting flow. When second control valve 143b is open and first control valve 142b is closed, only second throttle valve 141a operates, limiting flow.

[0108] As shown in Figure 5, when a third throttle assembly 145 is also included, the third throttle assembly 145 also includes a connected third throttle valve 145a and a third control valve 145b. The third throttle valve 145a is connected in series with the second throttle valve 141a, and the third control valve 145b is connected in parallel with the second throttle assembly 143. When the first control valve 142b is open and the second control valve 143b and the third control valve are closed, the first throttle valve 142a, the second throttle valve 141a, and the third throttle valve 145a operate simultaneously, and the first throttle valve 142a, the second throttle valve 141a, and the third throttle valve 145a simultaneously limit flow. When the second control valve 143b is open and the first control valve 142b and the third control valve 145b are closed, the second throttle valve 141a and the third throttle valve 145a operate, and the first throttle valve 142a does not operate. When the third control valve 145b is open and the first control valve 142b and the second control valve 143b are closed, only the third throttle valve 145a operates.

[0109] The connection relationship between the multiple throttle assemblies and the control valve 141b, the throttle valve 141b, or other components is described below. When the multiple throttle assemblies also include other throttle assemblies, the same connection relationship can be referred to as the case where the multiple throttle assemblies include the first throttle assembly 142 and the second throttle assembly 143. The corresponding connection relationship is not repeated here.

[0110] In some embodiments, first control valve 142b, first throttle valve 142a, and second throttle valve 141a are connected in sequence. A first connection point 146a is defined between first throttle valve 142a and second throttle valve 141a, and one end of second control valve 143b is connected to first connection point 146a. In other words, second control valve 143b is connected between first throttle valve 142a and second throttle valve 141a, thereby short-circuiting first throttle valve 142a.

[0111] In some embodiments, the end of the second control valve 143b away from the first connection point 146a is connected to the end of the first control valve 142b away from the first throttle valve 142a to form an input point 146b. The end of the second throttle valve 141a away from the first throttle valve 142a forms an output point 146c.

[0112] In some embodiments, input point 146b and output point 146c are used to connect to external components. A throttling device can be provided between two heat exchangers, whereby input point 146b and output point 146c are connected to the two heat exchangers, respectively. Input point 146b is connected to second heat exchanger 136, and input point 146c is connected to first heat exchanger 134.

[0113] In some embodiments, the first throttle valve 142a is connected in series with the second throttle valve 141a.

[0114] It should be noted that the structure of the second throttling device 190 and the first throttling device 140 can be exactly the same or different. If they are the same, the structure of the second throttling device 190 can refer to the specific structure of the first throttling device 140 and will not be repeated.

[0115] In the drying system of the dishware processing device 100 according to some embodiments of the present disclosure, the second heat exchanger 136 functions as a condenser and the first heat exchanger 134 functions as an evaporator. Therefore, the power of the second heat exchanger 136 is higher than that of the first heat exchanger 134. When the second heat exchanger 136 functions as an evaporator and is connected to the third heat exchanger 154, the power of the heat pump system is higher than when the first heat exchanger 134 functions as an evaporator and is connected to the third heat exchanger 154. During the washing process, the power requirements for the heat pump system vary depending on the washing mode, actual loading capacity, and other factors. Therefore, the first heat exchanger 134 or the second heat exchanger 136 can be selected based on the operating parameters of the dishware processing device 100, thereby increasing the heat pump power and reducing overall energy consumption.

[0116] Based on the same inventive concept, the embodiments of the present disclosure also provide a tableware processing control method. According to some embodiments of the present disclosure, the tableware processing control method is applied to the above-mentioned tableware processing device 100. According to some embodiments of the present disclosure, the tableware processing control method can increase the heat pump power and reduce the energy consumption of the entire machine.

[0117] The structure of the dishware processing device 100 is not described in detail here. According to some embodiments of the present disclosure, the dishware processing control method is mainly used to select whether to use the first heat exchanger 134 or the second heat exchanger 136 as the evaporator according to the operating parameters of the dishware processing device 100 in the heat pump mode, including the following steps S100-S500.

[0118] As shown in FIG. 6 , in step S100 , in response to a heating signal from the dishware processing apparatus 100 , the circulation pump 152 is controlled to start, and the first reversing valve 172 is controlled to connect the outlet 164 of the compressor 160 with the third heat exchanger 154 .

[0119] When a heating signal is received, it means that the washing water needs to be heated and the heat pump mode needs to be started. The circulation pump 152 is turned on to allow the washing water in the accommodating chamber 112 to enter the heat pump channel 150. At the same time, the first connecting port 172a and the third connecting port 172c are connected, so that the high-temperature and high-pressure heat exchange medium flowing out of the outlet 164 of the compressor 160 can flow to the third heat exchanger 154.

[0120] In step S200 , the operating parameters of the dishware processing apparatus 100 are acquired.

[0121] Since the first heat exchanger 134 and the second heat exchanger 136 can be selected according to different operating parameters, it can be determined whether to select the first heat exchanger 134 or the second heat exchanger 136 as the evaporator according to the operating parameters.

[0122] In some embodiments, the operating parameter may be image information in the accommodating cavity 112 , a heating temperature value carried in a heating signal, or the type of the heating signal, such as accelerated heating or normal heating.

[0123] In step S300 , it is determined whether a condition for the third heat exchanger 154 and the second heat exchanger 136 to be connected is met based on the operating parameters.

[0124] Because the power of the first heat exchanger 134 and the second heat exchanger 136 differ, it is possible to select whether the first heat exchanger 134 or the second heat exchanger 136 serves as the evaporator based on operating parameters. Furthermore, the aforementioned operating parameters can be used to determine whether the conditions for the third heat exchanger 154 and the second heat exchanger 136 to be electrically connected are met. According to some embodiments of the present disclosure, a first method, a second method, and a third method are provided for determining whether the conditions for the third heat exchanger 154 and the second heat exchanger 136 to be electrically connected are met. The first method includes steps S312 to S318, the second method includes steps S322 to S328, and the third method includes steps S332 to S336.

[0125] As shown in FIG7 , in step S312 , the heating temperature value carried in the heating signal is obtained. The operating parameters include the heating temperature value;

[0126] In some embodiments, a heating temperature value is received during the process of receiving the heating signal. This temperature value may be factory-set by the dishware processing device 100 or may be set by the user during use. In other embodiments, the washing process may have different temperature levels, and the user may select different heating temperature values ​​corresponding to different temperature levels according to different dishes.

[0127] The heating temperature value is the target temperature value to which the washing water needs to be heated.

[0128] In step S314 , it is determined whether the heating temperature value is greater than or equal to the set temperature value.

[0129] After receiving the heating temperature value, a determination is made as to whether the heating temperature value is greater than or equal to the set temperature value. A higher set temperature value indicates a higher temperature for the washing water, which in turn requires more power from the evaporator. The relationship between the heating temperature value and the set temperature value can be used to determine whether the conditions for conducting the third heat exchanger 154 with the second heat exchanger 136 are met.

[0130] In some embodiments, the set temperature value may be 50 degrees Celsius to 60 degrees Celsius.

[0131] In step S316 , if the heating temperature value is greater than or equal to the set temperature value, it is determined that the condition for the third heat exchanger 154 and the second heat exchanger 136 to be in conduction is satisfied.

[0132] If the heating temperature is greater than or equal to the set temperature, it indicates that the heating temperature is high and a higher power is required to quickly heat the wash water to the heating temperature. In this case, the conditions for connecting the third heat exchanger 154 to the second heat exchanger 136 are met. Therefore, the second heat exchanger 136 and the third heat exchanger 154 can be connected, allowing the second heat exchanger 136 with higher power to act as an evaporator to heat the wash water, thereby improving the energy efficiency of the heat pump.

[0133] In step S318 , if the heating temperature value is lower than the set temperature value, it is determined that the condition for the third heat exchanger 154 and the second heat exchanger 136 to be in conduction is not satisfied.

[0134] If the heating temperature is less than or equal to the set temperature, it indicates that the current heating temperature is low and the first heat exchanger 134 with lower power can be used as the evaporator to ensure that the wash water is heated to the heating temperature and reduce energy consumption. Therefore, the condition for the third heat exchanger 154 to be in electrical communication with the second heat exchanger 136 is not met.

[0135] Steps S312 to S318 describe determining whether the third heat exchanger 154 and the second heat exchanger 136 are connected by the heating temperature value. Steps S322 to S328 describe determining whether the third heat exchanger 154 and the second heat exchanger 136 are connected by the image information in the accommodating cavity 112.

[0136] As shown in FIG8 , in step S322 , image information in the accommodating cavity 112 is acquired, and the operating parameters include the image information.

[0137] The image information in the accommodating cavity 112 is actually the actual loading capacity of the accommodating cavity 112. The actual loading capacity of the accommodating cavity 112 can be analyzed based on the image information. A larger actual loading capacity indicates a greater demand for wash water, and a smaller actual loading capacity indicates a smaller demand for wash water.

[0138] In step S324 , it is determined based on the image information whether the actual loading capacity in the receiving cavity 112 is greater than or equal to the set loading capacity.

[0139] After acquiring the image information, the actual loading capacity of the accommodating chamber 112 is analyzed based on the image information to determine whether the actual loading capacity is greater than or equal to the set loading capacity. If the actual loading capacity is greater than the set loading capacity, it indicates that the actual loading capacity of the accommodating chamber 112 is large and the demand for wash water is high. If the actual loading capacity is less than the set loading capacity, it indicates that the actual loading capacity of the accommodating chamber 112 is small and the demand for wash water is low. The demand for wash water can be determined based on the actual loading capacity, and the first heat exchanger 134 or the second heat exchanger 136 can be selected as the evaporator.

[0140] In some embodiments, the loading capacity is set to half of the rated capacity of the receiving chamber 112 .

[0141] In step S326 , if the actual loading capacity in the accommodating chamber 112 is greater than or equal to the set loading capacity, it is determined that the condition for the third heat exchanger 154 and the second heat exchanger 136 to be in communication is met.

[0142] If the actual loading capacity is greater than or equal to the set loading capacity, it means that the actual loading capacity in the accommodating chamber 112 is large, the demand for washing water is large, and more washing water needs to be provided in a short time. At this time, the power demand for the evaporator is high, and a high-power evaporator is needed. The second heat exchanger 136 can be selected as the evaporator, that is, it is determined that the conditions for the third heat exchanger 154 and the second heat exchanger 136 to be conductive are met.

[0143] In step S328 , if the actual loading capacity in the accommodating chamber 112 is less than the set loading capacity, it is determined that the condition for the third heat exchanger 154 and the second heat exchanger 136 to be in communication is not met.

[0144] If the actual loading capacity is smaller than the set loading capacity, it means that the actual loading capacity in the accommodating chamber 112 is smaller and the demand for washing water is smaller. In this case, the power demand for the evaporator is lower and a smaller power evaporator can be selected. In addition, the first heat exchanger 134 can be selected as the evaporator, that is, it is determined that the condition for the third heat exchanger 154 and the second heat exchanger 136 to be connected is not met.

[0145] Steps S322 to S328 determine whether the conditions for conducting between the third heat exchanger 154 and the second heat exchanger 136 are met based on the image information in the accommodating cavity 112. Steps S332 to S338 determine whether the conditions for conducting between the third heat exchanger 154 and the second heat exchanger 136 are met based on the type of the heating signal.

[0146] As shown in FIG9 , in step S332 , it is determined whether the heating signal is an accelerated heating signal.

[0147] After receiving the heating signal, first determine the type of heating signal, whether it is normal heating or accelerated heating. If the heating signal is an accelerated heating signal, the washing water needs to be heated to the heating temperature value in a short time, and the power requirement of the evaporator is high, so a larger power evaporator needs to be selected.

[0148] In step S334 , if the heating signal is an accelerated heating signal, it is determined that the condition for the third heat exchanger 154 and the second heat exchanger 136 to be in conduction is met.

[0149] If the heating signal is an accelerated heating signal, the washing water needs to be heated to the heating temperature value in a short time, and the power requirement of the evaporator is high, so a higher power evaporator needs to be selected. Then, it is determined that the conditions for conducting the third heat exchanger 154 with the second heat exchanger 136 are met.

[0150] In step S336 , if the heating signal is not an accelerated heating signal, it is determined that the condition for the third heat exchanger 154 and the second heat exchanger 136 to be in conduction is not met.

[0151] If the heating signal is not an accelerated heating signal, the power requirement for the evaporator is low, and therefore a smaller power evaporator needs to be selected. It is determined that the condition for the third heat exchanger 154 to be in conduction with the second heat exchanger 136 is not met.

[0152] It should be noted that three different judgment methods are provided above. As long as the judgment result of one of the three judgment methods meets the conditions, it is determined that the conditions for the third heat exchanger 154 and the second heat exchanger 136 to be conductive are met.

[0153] As shown in FIG. 6 , in step S400 , if the condition for the third heat exchanger 154 and the second heat exchanger 136 to be in communication is met, the second reversing valve 174 is controlled to connect the third heat exchanger 154 and the second heat exchanger 136 .

[0154] In some embodiments, if the condition for the third heat exchanger 154 and the second heat exchanger 136 to be connected is met, it means that a larger power evaporator is required for heat exchange at this time. In this case, the second connection port 174b and the third connection port 174c are controlled to be connected, so that the heat exchange medium flowing out of the third heat exchanger 154 can flow to the second heat exchanger 136.

[0155] In step S500 , if the condition for connecting the third heat exchanger 154 and the second heat exchanger 136 is not met, the second reversing valve 174 is controlled to connect the third heat exchanger 154 and the first heat exchanger 134 .

[0156] If the condition for the third heat exchanger 154 and the second heat exchanger 136 to be connected is not met, it means that a smaller power evaporator can be selected for heat exchange. In this case, the first connecting port 174a and the third connecting port 174c are controlled to be connected so that the heat exchange medium flowing out of the third heat exchanger 154 can flow to the first heat exchanger 134.

[0157] In the tableware processing control method according to some embodiments of the present disclosure, since the power requirements of the heat pump system are different due to the washing mode, actual loading capacity, etc., the first heat exchanger 134 or the second heat exchanger 136 can be selected according to the operating parameters of the tableware processing device 100, thereby increasing the heat pump power and reducing the energy consumption of the entire machine.

[0158] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0159] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this disclosure.

[0160] Although the embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A tableware processing device, comprising: The housing comprises a containing cavity, an air outlet, an air return port, a water outlet and a water return port connected to the containing cavity, wherein the containing cavity is used to contain tableware; A return air duct, a fan, a first heat exchanger, a second heat exchanger and a first throttling device, wherein the return air duct is in communication with the air outlet and the return air outlet, the fan, the first heat exchanger and the second heat exchanger are all arranged in the return air duct, the first heat exchanger is arranged close to the air outlet, the second heat exchanger is arranged close to the return air outlet, and the first throttling device is connected between the first heat exchanger and the second heat exchanger; A heat pump channel, a circulation pump and a third heat exchanger, wherein the heat pump channel is in communication with the water outlet and the water return port, and the circulation pump and the third heat exchanger are arranged in the heat pump channel; as well as A compressor, a first reversing valve and a second reversing valve, wherein the first heat exchange valve is respectively connected to the outlet of the compressor, the second heat exchanger and the third heat exchanger, and can conduct the outlet of the compressor with the second heat exchanger or the third heat exchanger; the second reversing valve is respectively connected to the first heat exchanger, the second heat exchanger and the third heat exchanger, and can conduct the third heat exchanger with the second heat exchanger or the first heat exchanger.

2. The tableware processing device according to claim 1, wherein: The second reversing valve has a first connection port, a second connection port and a third connection port. The first connection port is communicated with the first heat exchanger, the second connection port is communicated with the second heat exchanger, and the third connection port is communicated with the third heat exchanger.

3. The tableware processing device according to claim 2 further includes a second throttling device, wherein the second throttling device is connected between the second heat exchanger and the third heat exchanger, and the first connecting port is connected between the second heat exchanger and the first throttling device.

4. The tableware processing device according to any one of claims 1 to 3, wherein: The first switching valve has a first communication port, a second communication port, and a third communication port. The first communication port is communicated with the outlet of the compressor, the second communication port is communicated with the second heat exchanger, and the third communication port is communicated with the third heat exchanger.

5. The tableware processing device according to any one of claims 1 to 4, wherein: The return air channel is provided with an air inlet and an air outlet, the air inlet is arranged between the first heat exchanger and the air outlet, and the air outlet is arranged between the second heat exchanger and the return air outlet. When the circulation pump is started, the air inlet and the air outlet are opened, and the air outlet and the return air outlet are closed.

6. The tableware processing device according to claim 5 further includes a first air valve, which is arranged between the air outlet and the air inlet, and the first air valve can connect the air outlet with the return air channel and disconnect the air inlet from the return air channel, or disconnect the air outlet from the return air channel and connect the air inlet with the return air channel.

7. The tableware processing device according to claim 5 or 6 further includes a second air valve, which is arranged between the exhaust port and the return air port, and the second air valve can connect the exhaust port with the return air channel and disconnect the return air port from the return air channel, or can disconnect the exhaust port from the return air channel and connect the return air port with the return air channel.

8. The tableware processing device according to any one of claims 1 to 7, wherein: The air outlet and the air return outlet are arranged on the same side of the shell.

9. The tableware processing device according to any one of claims 1 to 8, wherein: The second heat exchanger is connected to the inlet of the compressor.

10. The tableware processing device according to any one of claims 1 to 9, wherein: The first throttling device comprises: a plurality of throttling components, the throttling components comprising: A throttle valve and a control valve connected in series with the throttle valve; Therein, the control valve of at least one throttling assembly is connected in parallel with at least one other throttling assembly.

11. The tableware processing device according to claim 10, wherein: The multiple throttling components include a first throttling component and a second throttling component, the first throttling component includes a first throttling valve and a first control valve, the second throttling component includes a second throttling valve and a second control valve, the first control valve is connected in series with the first throttling valve, the second control valve is connected in series with the second throttling valve, and the second control valve is connected in parallel with the first throttling valve and the first control valve.

12. The tableware processing device according to claim 11, wherein: The first control valve, the first throttle valve, and the second throttle valve are connected in sequence, a first connection point is provided between the first throttle valve and the second throttle valve, and one end of the second control valve is connected to the first connection point.

13. The tableware processing device according to claim 12, wherein: One end of the second control valve away from the first connection point is connected to one end of the first control valve away from the first throttle valve to form an input point, and one end of the second throttle valve away from the first throttle valve forms an output point.

14. The tableware processing device according to any one of claims 11 to 13, wherein: The first throttle valve is connected in series with the second throttle valve.

15. A tableware processing control method, applied to the tableware processing device according to any one of claims 1 to 14, the tableware processing control method comprising: In response to a heating signal from the tableware processing device, controlling the circulation pump to start and controlling the first reversing valve to connect the outlet of the compressor with the third heat exchanger; Obtaining operating parameters of the tableware processing device; determining, according to the operating parameters, whether a condition for the third heat exchanger to be connected to the second heat exchanger is met; If the condition that the third heat exchanger and the second heat exchanger are connected is met, the second reversing valve is controlled to connect the third heat exchanger and the second heat exchanger; as well as If the condition for the third heat exchanger and the second heat exchanger to be connected is not met, the second reversing valve is controlled to connect the third heat exchanger and the first heat exchanger.

16. The tableware processing control method according to claim 15, wherein: The step of judging whether the condition for conducting the third heat exchanger with the second heat exchanger is met according to the operating parameters includes: acquiring a heating temperature value carried in the heating signal, wherein the operating parameter includes the heating temperature value; Determine whether the heating temperature value is greater than or equal to the set temperature value; If the heating temperature value is greater than or equal to the set temperature value, it is determined that the condition for the third heat exchanger to be connected to the second heat exchanger is met; and If the heating temperature value is lower than the set temperature value, it is determined that the condition for the third heat exchanger to be connected to the second heat exchanger is not met.

17. The tableware processing control method according to claim 15 or 16, wherein: The step of judging whether the condition for conducting the third heat exchanger with the second heat exchanger is met according to the operating parameters includes: Acquiring image information in the containing cavity, wherein the operating parameters include the image information; Determining whether the actual loading capacity in the containing cavity is greater than or equal to the set loading capacity according to the image information; If the actual loading capacity in the accommodating chamber is greater than or equal to the set loading capacity, it is determined that the condition for the third heat exchanger to be connected to the second heat exchanger is met; and If the actual loading capacity in the accommodating chamber is smaller than the set loading capacity, it is determined that the condition for the third heat exchanger to be connected to the second heat exchanger is not met.

18. The tableware processing control method according to any one of claims 15 to 17, wherein: The step of judging whether the condition for conducting the third heat exchanger with the second heat exchanger is met according to the operating parameters includes: Determining whether the heating signal is an accelerated heating signal; If the heating signal is the accelerated heating signal, determining that a condition for the third heat exchanger to be in conduction with the second heat exchanger is satisfied; and If the heating signal is not the accelerated heating signal, it is determined that the condition for the third heat exchanger to be connected to the second heat exchanger is not met.

Images