WO2024041071A1 - 洗碗机 - Google Patents

洗碗机 Download PDF

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Publication number
WO2024041071A1
WO2024041071A1 PCT/CN2023/097578 CN2023097578W WO2024041071A1 WO 2024041071 A1 WO2024041071 A1 WO 2024041071A1 CN 2023097578 W CN2023097578 W CN 2023097578W WO 2024041071 A1 WO2024041071 A1 WO 2024041071A1
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WO
WIPO (PCT)
Prior art keywords
water
interface
heat exchange
pipeline
washing
Prior art date
Application number
PCT/CN2023/097578
Other languages
English (en)
French (fr)
Inventor
刘闪闪
王振
李瑞嵩
Original Assignee
佛山市顺德区美的洗涤电器制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202222228294.6U external-priority patent/CN218738848U/zh
Priority claimed from CN202211011474.7A external-priority patent/CN117652975A/zh
Application filed by 佛山市顺德区美的洗涤电器制造有限公司 filed Critical 佛山市顺德区美的洗涤电器制造有限公司
Publication of WO2024041071A1 publication Critical patent/WO2024041071A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices

Definitions

  • the present application relates to the field of washing equipment, specifically a dishwasher.
  • the dishwasher is an intelligent product that replaces manual cleaning of tableware. During the working process, the dishwasher continuously covers and sprays the tableware to achieve the purpose of cleaning the tableware. In order to shorten the washing time of the dishwasher, the dishwasher in the related art usually heats the washing water to increase the temperature of the washing water, so that the high-temperature washing water washes away the contaminants on the tableware and brings the heat to the tableware. Therefore, the dishwasher can obtain higher cleaning rate and drying rate in a shorter washing time. After the washing is completed, the washing waste water needs to be discharged, resulting in a large waste of energy consumption.
  • the main purpose of this application is to provide a dishwasher capable of saving energy consumption.
  • an embodiment of the present application proposes a dishwasher with a heat exchange process.
  • the dishwasher includes:
  • a water tank the water tank has a water storage cavity and a first heat exchange water inlet interface and a first heat exchange water outlet interface connected with the water storage cavity;
  • a heat exchanger the heat exchanger is located outside the water tank, and the heat exchanger has a heat exchange cavity;
  • a washing unit the washing unit has a washing cavity and a second heat exchange water inlet interface and a second heat exchange water outlet interface connected with the washing cavity;
  • Water supply pipeline the water supply pipeline connects the water storage cavity and the washing cavity;
  • New water pipeline the new water pipeline connects the first heat exchange water inlet interface and the first heat exchange water outlet interface, the new water pipeline has a new water heat exchange pipe section located inside the heat exchange cavity;
  • a first water pump, the first water pump is located in the new water pipeline
  • Hot water pipeline the hot water pipeline is connected to the second heat exchange water inlet interface and the second heat exchange water outlet interface.
  • the hot water pipeline has a hot water heat exchange pipe section located inside the heat exchange cavity. ;
  • a second water pump, the second water pump is located in the hot water pipeline; and,
  • the hot waste water flowing through the hot water heat exchange pipe section and the new water flowing through the new water heat exchange pipe section are heat exchanged, causing the temperature of the new water to increase.
  • the dishwasher further includes an on-off controller
  • the washing unit further includes a delivery pipeline and one or more spray arms, the delivery pipeline connects the washing cavity and the spray arms;
  • the on and off of the new water pipeline, hot water pipeline and delivery pipeline are all controlled by the on and off controller.
  • Each pipeline is controlled by an on-off controller, thereby enabling switching control of heat exchange and washing.
  • the dishwasher further includes a water separation valve, which is provided in the delivery pipeline;
  • the on-off controller includes a first stop valve and a second stop valve, and the third stop valve
  • a stop valve is provided in the new water pipeline, and the second stop valve is provided in the hot water pipeline; and, during the heat exchange process, the first water pump and the second water pump are turned on, and the first water pump is opened. Both the stop valve and the second stop valve are open, and the water diverting valve is closed.
  • the on-off control of the new water pipeline and the hot water pipeline is realized through the first and second stop valves, thereby enabling switching control of heat exchange and washing.
  • the delivery pipeline and the hot water pipeline have a common pipe section;
  • the on-off controller includes a first stop valve and a water diverting valve, and the first stop valve is located on the new water pipe.
  • the water diverting valve is located in the common pipe section; and, during the heat exchange process, both the first water pump and the second water pump are opened, the first stop valve is opened, and the water diverting valve The hot water pipeline is connected and the delivery pipeline is disconnected.
  • the on-off controller includes a first stop valve and a water diverting valve, and the first stop valve is provided in the new water pipeline;
  • the heat exchanger has a first hot water interface and a second Hot water interface, the hot water heat exchange pipe section connects the first hot water interface and the second hot water interface;
  • the water diverting valve has a first interface, a second interface, a third interface and a fourth interface, The first interface is connected to the second heat exchange water outlet, the second interface is connected to the spray arm, the third interface is connected to the first hot water interface, and the fourth interface is connected to the The second hot water interface is connected; and, during the heat exchange process, the first interface is connected to the third interface, and the second interface is connected to the fourth interface.
  • the water division Valves By controlling the connection between the first interface and the third interface and the connection between the second interface and the fourth interface during heat exchange; and controlling the connection between the first interface and the second interface during washing, switching control between heat exchange and washing is realized; at the same time, the water division Valves also enable distribution control of the nozzles.
  • the temperature of the new water is increased by heat exchange between the hot wastewater and the new water, thereby realizing the recovery and utilization of the heat of the hot wastewater and saving energy consumption; due to the provision of the first water pump and the second water pump, Ability to speed up fluid circulation
  • the flow speed improves the heat exchange efficiency; because the heat exchanger is located outside the water tank, it does not occupy the internal space of the water tank, thus effectively increasing the effective volume of the water tank for storing new water.
  • Figure 1 is a schematic structural diagram of a dishwasher provided by an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a dishwasher provided by another embodiment of the present application.
  • Figure 3 is a schematic structural diagram of a dishwasher provided by yet another embodiment of the present application.
  • Figure 4 is a schematic structural diagram of a heat exchanger of a dishwasher provided by an embodiment of the present application.
  • Figure 5 is a flow chart of the heat exchange process of the dishwasher provided by the embodiment of the present application.
  • Dishwasher 100 water tank 10, water storage cavity 101, first heat exchange water outlet interface 102, first heat exchange water inlet interface 103.
  • New water outlet interface 104 new water inlet interface 105, water inlet pipeline 106, heat exchanger 12, heat exchange cavity 121, first new water interface 122, second new water interface 123, first hot water interface 124, second hot water interface 125, washing unit 14, washing cavity 140, second heat exchange water outlet interface 141, second heat exchange water inlet interface 142, spray arm 145, delivery pipeline 149, new water pipeline 18, new Water heat exchange pipe section 181, first pipe section 182, second pipe section 183, first water pump 20, hot water pipe 22, hot water heat exchange pipe section 221, third pipe section 222, fourth pipe section 223, second water pump 24, drainage Pipeline 28, drainage pump 30, water diverting valve 32, first interface 32a, second interface 32b, third interface 32c, fourth interface 32d, water supply pipeline 34, flow meter 36, first stop valve 38, second Stop valve 40, stop valve 42, stop valve 44, water supply pipeline 46
  • a dishwasher 100 includes a water tank 10 , a heat exchanger 12 and a washing unit 14 .
  • the water tank 10 defines a water storage cavity 101 with a certain volume, and the water storage cavity 101 can store new water for washing.
  • the washing unit 14 defines a washing cavity 140 with a certain volume.
  • a support may be disposed in the washing cavity 140, and the support may be used to support tableware, and the tableware may be cleaned in the washing cavity 140.
  • the heat exchanger 12 defines a heat exchange cavity 121 with a certain volume. New water with a lower temperature and hot water with a higher temperature can perform heat exchange in the heat exchange cavity 121, so that the temperature of the new water rises. high.
  • the dishwasher 100 also includes a new water pipeline 18.
  • the water tank 10 has a first heat exchange water inlet interface 103 and a first heat exchange water outlet interface 102.
  • the first heat exchange water inlet interface 103 and the first heat exchange water outlet The interfaces 102 are all connected to the water storage cavity 101.
  • Both ends of the new water pipeline 18 are connected to the first heat exchange water inlet interface 103 and the first heat exchange water outlet interface 102 respectively.
  • the new water pipeline 18 is provided with a first water pump 20. Under the action of a water pump 20, the new water in the water storage cavity 101 flows into the new water pipeline 18, and flows back to the water storage cavity 101 through the new water pipeline 18, and the new water circulates back and forth.
  • the dishwasher 100 further includes a hot water pipeline 22 .
  • the washing unit 14 has a second heat exchange water inlet interface 142 and a second heat exchange water outlet interface 141 .
  • the exchange water outlet interfaces 141 are all connected to the washing cavity 140. Both ends of the hot water pipeline 22 are connected to the second heat exchange water inlet interface 142 and the second heat exchange water outlet interface 141 respectively.
  • the hot water pipeline 22 is provided with a second water pump. 24. Under the action of the second water pump 24, the hot water in the washing cavity 140 flows into the hot water pipeline 22 through the second heat exchange water outlet interface 141, and passes through the hot water pipeline 22 and the second heat exchange water inlet interface 142. It flows into the washing cavity 140 again, and the hot water circulates back and forth.
  • the new water pipeline 18 has a new water heat exchange pipe section 181 located inside the heat exchange cavity 121 .
  • the hot water pipeline 22 has a hot water heat exchange pipe section 221 located inside the heat exchange cavity 121 .
  • New water is usually normal temperature water, which has a lower temperature.
  • Hot water is usually washing wastewater, which has a higher temperature.
  • heat recovery that is, when heat exchange is required, since the temperature of the hot waste water in the hot water heat exchange pipe section 221 is higher than the new water in the new water heat exchange pipe section 181, the new water absorbs heat and the temperature rises. After a set time Due to the circulating flow and heat exchange, the temperature of the new water in the water storage cavity 101 increases as a whole.
  • the effective volume of the water tank 10 that can be used to store new water can be effectively increased, that is, the water storage cavity 101 can Has larger volume. Due to the provision of the first water pump 20 and the second water pump 24, the speed of the liquid circulation flow can be accelerated and the heat exchange efficiency can be improved. By heat exchange between hot wastewater and new water, the temperature of the new water is increased, which realizes the recovery and utilization of the heat of the hot wastewater, and can effectively reduce the energy consumption required to heat the new water to the set temperature, saving energy. .
  • the dishwasher 100 may further include a water supply pipeline 46 , which connects the water tank 10 and the washing unit 14 .
  • New water inside the water tank 10 can be provided to the washing unit through the water supply pipeline 46 .
  • the water tank 10 can have a new water outlet interface 104, which is connected to the water storage cavity 101.
  • the washing unit 14 can have a water inlet interface, which is connected to the washing cavity 140, and the water supply pipeline.
  • One end of 46 is connected to the new water outlet interface 104, and the other end of the water supply pipeline 46 is connected to the water inlet interface.
  • the water inlet of the washing unit 14 The interface and the second heat exchange water inlet interface 142 may be different interfaces, and the two interfaces are set independently of each other.
  • another stop valve 42 for on-off control of the pipeline may be provided on the water supply pipeline 46 .
  • the washing cavity 140 may include an inner pot 147 and a water collection cup 148.
  • the water collection cup 148 is located on the bottom wall of the inner pot 147 and communicates with the inner pot 147. Both the inner pot 147 and the water collection cup 148 have certain volume.
  • the water inlet interface, the second heat exchange water inlet interface 142 and the second heat exchange water outlet interface 141 of the washing unit 14 can all be provided in the water collecting cup 148 .
  • the dishwasher 100 may also include a drainage pipeline 28 , which is connected to the washing unit 14 , and the waste water generated by washing can be discharged through the drainage pipeline 28 .
  • the washing unit 14 has a drainage interface that is connected to the washing cavity 140 , and the drainage pipeline 28 is connected to the drainage interface.
  • a drainage pump 30 can be provided on the drainage pipeline 28 .
  • the drainage interface of the washing unit 14 and the second heat exchange water outlet interface 141 can be different interfaces, and the two interfaces can be set independently of each other.
  • the washing unit 14 may have a water inlet interface, a drainage interface, a second heat exchange water inlet interface 142 and a second heat exchange water outlet interface 141 that are independently arranged.
  • the water interface 142 and the second heat exchange water outlet interface 141 are both provided on the water collection cup 148.
  • the water inlet interface is used to pass into the new washing water output from the water storage cavity 101, and the drainage interface is used to drain the washing cavity 140.
  • the first heat exchange water inlet interface 142 and the first heat exchange water outlet interface 141 are used for the circulation of heating waste water.
  • the new water in the water storage cavity 101 can flow into the washing cavity 140 through the water supply pipe 46 under its own gravity. Therefore, the new water outlet interface 104 of the water tank 10 can be higher than the washing unit 14 in the direction of gravity. water inlet interface.
  • the washing unit 14 further includes a spray arm 145 and a delivery pipeline 149 .
  • the spray arm 145 is located in the washing cavity 140 of the washing unit 14 .
  • Each spray arm 145 may have a water inlet, and the washing water may enter the spray arm 145 through the water inlet, and may be sprayed to the tableware through the nozzle of the spray arm 145, thereby washing the tableware.
  • the water collecting cup 148 is connected to each spray arm 145 through a delivery pipe 149 .
  • the delivery pipeline 149 may be provided with a washing pump, which can draw wash water from the water collection cup 148 and pressurize it before delivering it to each spray arm 145 through the delivery pipeline 149 .
  • When there are multiple spray arms 145 they can be distributed at intervals in the direction of gravity, or distributed at intervals in the horizontal direction, or mixedly distributed in the horizontal direction and the direction of gravity.
  • the washing pump may be the above-mentioned second water pump 24, that is, when heat exchange is required, the second water pump 24 circulates the hot waste water in the hot water pipeline 22.
  • the second water pump 24 delivers the washing water in the washing cavity 140 to each spray arm 145 through the delivery pipeline 149 .
  • the structure is simple.
  • the dishwasher 100 includes a washing pump and a second water pump 24 arranged independently of each other.
  • the washing unit 14 is provided with a second heat exchange water outlet interface 141 connected with the second water pump 24 and a water outlet connected with the washing pump. interface, the water outlet interface and the second heat exchange water outlet interface 141 can be set independently of each other.
  • the delivery pipeline 149 and the hot water pipeline 22 may not have a common pipe section.
  • the water tank 10 may also include a water inlet pipeline 106 and a new water inlet interface 105.
  • the water inlet pipe 106 is separated from the water storage cavity 101.
  • the new water inlet interface 105 is located at the bottom of the water inlet pipe 106 and connected with the water inlet pipe 106.
  • the dishwasher 100 also includes a water supply pipe 34,
  • the new water inlet interface 105 can be connected to the municipal water source through the water supply pipeline 34, so that new water at normal temperature can flow into the water inlet pipeline 106 through the water supply pipeline 34 and the new water inlet interface 105.
  • the top of the water inlet pipe 106 can be connected with the top of the water storage cavity 101 so that new water can flow in through the water inlet pipe 106 and be stored in the water storage cavity 101 .
  • the first heat exchange water inlet interface 103, the first heat exchange water outlet interface 102, the new water inlet interface 105, and the new water outlet interface 104 of the water tank 10 can be located at the bottom of the water tank 10 and arranged independently of each other.
  • a flow meter 36 can be provided on the water supply pipeline 34 or the water inlet pipeline 106 , so that the amount of new water flowing into the water tank 10 can be accurately measured.
  • the flow meter 36 is installed in the water supply pipeline 34, it is convenient for the user to observe the measurement.
  • the flow meter 36 is provided in the water inlet pipe 106, it is built into the water tank 10.
  • the water supply line 34 may be provided with a shut-off valve 44 .
  • the water inlet pipe 106 is located inside the water tank 10 , and may be a water pipe, or may be surrounded by multiple baffles inside the water tank 10 .
  • the new water pipeline 18 connects the water tank 10 and the heat exchanger 12.
  • the new water pipeline 18 passes through the heat exchanger 12.
  • the heat exchanger 12 divides the new water pipeline 18 into The first pipe section 182, the new water heat exchange pipe section 181 and the second pipe section 183.
  • the first pipe section 182 is a pipe section located between the heat exchanger 12 and the first heat exchange water outlet interface 102.
  • the heat exchange pipe section 181 is located in the heat exchange cavity.
  • the third pipe section 183 is the pipe section located between the heat exchanger 12 and the first heat exchange water inlet interface 103.
  • the hot water pipeline 22 connects the washing cavity 140 and the heat exchanger 12 .
  • the hot water pipeline 22 is penetrated by a heat exchanger 12.
  • the heat exchanger 12 divides the hot water pipeline 22 into a third pipe section 222, a hot water heat exchange pipe section 221 and a fourth pipe section 223.
  • the third pipe section 222 is located at the heat exchanger.
  • the hot water heat exchange pipe section 221 is a pipe section located in the heat exchange cavity 121, and the fourth pipe section 223 is located between the heat exchanger 12 and the second heat exchange hot water inlet. Pipe segments between water connections 142.
  • the heat exchanger 12 has a first new water interface 122 , a second new water interface 123 , a first hot water interface 124 and a second hot water interface 125 .
  • the new water pipeline 18 can be an integral pipeline, one end of which is connected to the first heat exchange water outlet interface 102, and the other end of which is connected to the first heat exchange water inlet interface 103.
  • the part between the two ends is the middle part of the new water pipeline 18.
  • the hot water pipeline 22 may be an integral pipeline, with one end connected to the second heat exchange water outlet interface 141 and the other end connected to the second heat exchange water inlet interface 142.
  • the portion between the two ends is the hot water pipeline 22 In the middle part, as shown in FIG. 4 , the first hot water interface 124 and the second hot water interface 125 of the heat exchanger 12 are installed in the middle part.
  • the new water pipeline 18 may be composed of multiple independently arranged pipe sections connected in sequence.
  • the hot water pipeline 22 may be composed of a plurality of independently arranged pipe sections connected in sequence.
  • the heat exchanger 12 may have a first new water interface 122 , a second new water interface 123 , a first hot water interface 124 and a second hot water interface 125 that are connected to the heat exchange cavity 121 .
  • the new water heat exchange pipe section 181 connects the first new water interface 122 and the second new water interface 123 .
  • the first pipe section 182 is connected to the A heat exchange water outlet interface 102 and a first new water interface 122.
  • the second pipe section 183 connects the first heat exchange water inlet interface 103 and the second new water interface 123 .
  • the hot water heat exchange pipe section 221 connects the first hot water interface 124 and the second hot water interface 125 .
  • the third pipe section 222 connects the second heat exchange water outlet interface 141 and the first hot water interface 124 .
  • the fourth pipe section 223 connects the second heat exchange water inlet interface 142 and the second hot water interface 125 .
  • the new water heat exchange pipe section 181 and the hot water heat exchange pipe section 221 can be defined by a heat exchanger.
  • the heat exchange cavity 121 can be divided into two parts, one part serves as the new water heat exchange pipe section 181, and the other part serves as the hot water heat exchange pipe section 221.
  • a plurality of baffles may be provided in the heat exchange cavity 121 , one set of baffles forms the new water heat exchange pipe section 181 , and the other set of baffles forms the hot water heat exchange pipe section 221 .
  • the new water heat exchange pipe section 181 and the hot water heat exchange pipe section 22 please refer to Figure 4.
  • the new water heat exchange pipe section 181 and the hot water heat exchange pipe section 221 are arranged adjacently, and the new water heat exchange pipe section 181 and the hot water heat exchange pipe section 221 are arranged adjacent to each other.
  • Both the water heat exchange pipe section 181 and the hot water heat exchange pipe section 221 can be arranged in the heat exchange cavity 121 of the heat exchanger 12 in a roundabout shape. Because the two pipelines are in a roundabout shape, the length of the flow of new water and hot water can be increased and the heat exchange effect can be improved.
  • the new water heat exchange pipe section 181 and the hot water heat exchange pipe section 221 can be made of materials with good heat transfer performance, or a material layer with good heat transfer performance can be set between the two pipes, or Heat dissipation components, such as heat dissipation fins, can be provided on the hot water heat exchange pipe section 221.
  • the shapes of the new water heat exchange pipe section 181 and the hot water heat exchange pipe section 221 can be designed according to heat dissipation requirements and manufacturing requirements.
  • the new water pipeline 18 and the hot water pipeline 22 of the dishwasher 100 need to be on-off controlled.
  • both the new water pipeline 18 and the hot water pipeline 22 are connected, and the new water and hot waste water flow in the new water pipeline 18 and the hot water pipeline 22 respectively, and in the heat exchange cavity 121 Heat exchange is performed to increase the temperature of the new water.
  • the new water pipeline 18 and the hot water pipeline 22 are disconnected respectively, and the water tank 10 can supply water to the washing cavity 140 through the water supply pipeline 46 .
  • the water in the washing cavity 140 can be transported to each spray arm 145 through the delivery pipe 149 to achieve spray washing of the tableware.
  • the new water pipeline 18 and the hot water pipeline 22 are on-off controlled by water pumps, that is, the first water pump 20 and the second water pump 24 can be water pumps with a cut-off function.
  • the first water pump 20 is disposed in the new water pipeline 18.
  • it can be disposed in the first pipe section 182 or the second pipe section 183 of the new water pipeline 18.
  • the first water pump 20 can be disposed in the first pipe section 182 so that it is closer to the water tank.
  • the second water pump 24 is located in the hot water pipeline 22, for example, it can be located in the third pipe section 222 or the fourth pipe section 223 of the hot water pipeline 22.
  • the second water pump 24 can be located in the third pipe section 222, so that it is closer to the washing machine.
  • both the first water pump 20 and the second water pump 24 are turned on, so that the new water pipeline 18 and the hot water pipeline 22 are both connected.
  • both the first water pump 20 and the second water pump 24 are cut off, so that the new water pipeline 18 and the hot water pipeline 22 are both disconnected.
  • the new water pipeline 18 and the hot water pipeline 22 are controlled on and off by a stop valve. That is, new The water pipeline 18 is provided with a first stop valve 38 , and the hot water pipeline 22 is provided with a second stop valve 40 .
  • the first stop valve 38 may be located in the first pipe section 182 of the new water pipeline 18 , and the first stop valve 38 may be located between the first water pump 20 and the heat exchanger 12 .
  • the second stop valve 40 may be located in the third pipeline 222 of the hot water pipeline 22 , and the second stop valve 40 may be located between the second water pump 24 and the heat exchanger 12 .
  • both the first stop valve 38 and the second stop valve 40 are opened, and the first water pump 20 and the second water pump 24 are both operated, so that new water can circulate in the new water pipeline 18, so that the hot waste water can circulate in the hot water.
  • the water circulates in the pipeline 22 and performs heat exchange inside the heat exchanger 12 .
  • the first water pump 20 and the second water pump 24 are closed, and the first stop valve 38 and the second stop valve 40 are both closed.
  • the dishwasher 100 may include a water diverting valve 32.
  • the water diverting valve 32 is provided in the delivery pipe 149. When there are multiple spray arms 145, the water diverting valve 32 may selectively distribute the washing water to one spray arm 145 or allocate it to all spray arms 145 at the same time. Multiple spray arms 145. As shown in FIG.
  • the third pipe section 222 of the hot water pipeline 22 and the delivery pipeline 149 have an overlapping common pipe section 224 , and the second water pump 24 is located in the common pipe section 224 .
  • the water separation valve 32 is closed.
  • the water diverting valve 32 is opened. Under the action of the second water pump 24 , the washing water in the washing cavity 140 passes through the second water pump 24 and the water diverting valve 32 and then enters each spray arm 145 .
  • the water diverting valve 32 may not be provided.
  • the washing water in the washing cavity 100 is directly transported to each spray arm 145 through the second water pump 24 and the transportation pipeline 149; during heat recovery, , the delivery pipeline 149 can be disconnected.
  • the water separation valve 32 is closed, and the hot waste water will not enter the inner tank 147 through the delivery pipeline 149, which can reduce heat loss.
  • the new water pipeline 18 is controlled on and off by a stop valve, and the hot water pipeline 22 is controlled on and off by a water diverter valve 32.
  • the new water pipeline 18 is provided with a first stop valve 38 , and the first stop valve 38 can be provided in the second pipe section 183 of the new water pipeline 18 .
  • the water diverting valve 32 has a first interface 32a, one or more second interfaces 32b and a third interface 32c.
  • the first interface 32a is connected to the water outlet of the second water pump 24, the second interface 32b is connected to the water inlet of the spray arm 145, and the third interface 32c is connected to the first hot water interface 124 of the heat exchanger 12.
  • the second interfaces 32b correspond to the spray arms 145 one-to-one.
  • both the first water pump 20 and the second water pump 24 are opened, and the first interface 32a and the third interface 32c of the water diverting valve 32 are connected, so that the water outlet of the second water pump 24 and the first heat exchanger of the heat exchanger 12 are connected.
  • the water interface 124 is connected, so that the entire hot water pipeline 22 is connected, and the hot waste water can circulate in the hot water pipeline 22 .
  • the first stop valve 38, the first water pump 20, and the second water pump 24 are closed, and the first interface 32a and the third interface 32c of the water diverting valve 32 are disconnected.
  • the second water pump 24 is opened to connect the first interface 32a and the second interface 32b.
  • the water outlet of the second water pump 24 is connected to the water inlet of the spray arm 145, so that the entire transport pipeline 149 is connected, and the washing The washing water in the cavity 140 can pass into the spray arm 145 through the delivery pipe 149 .
  • the first interface 32a can be controlled to be connected to One of the second interfaces 32b is connected or connected with multiple second interfaces 32b at the same time, so that the wash water can flow into one or more spray arms 145 through the second water pump 24 and the water diverting valve 32.
  • the third pipe section 222 of the hot water pipeline 22 and the delivery pipeline 149 may have a common pipe section 224, and the second water pump 24 is located in the common pipe section 224.
  • the new water pipeline 18 is controlled on and off by the first stop valve 38, and the hot water pipeline 22 is controlled on and off by the water diverting valve 32.
  • the first stop valve 38 is provided in the second pipe section 183 of the new water pipeline 18 and is located between the second new water interface 122 of the heat exchanger 12 and the first heat exchange water inlet interface 103 of the water tank 10 .
  • the second water pump 24 is provided in the third pipe section 222 of the hot water pipeline 22 .
  • the water diverting valve 32 has a first interface 32a, one or more second interfaces 32b, a third interface 32c and a fourth interface 32d.
  • the first interface 32a is connected to the water outlet of the second water pump 24, the second interface 32b is in one-to-one correspondence with the spray arm 145, each second interface 32b is connected to the water inlet of the corresponding spray arm 145, and the third interface 32c is connected to the heat exchanger
  • the first hot water interface 124 of the heat exchanger 12 is connected, and the fourth interface 32d is connected with the second hot water interface 125 of the heat exchanger 12 .
  • both the first water pump 20 and the second water pump 24 are opened, the first stop valve 38 is opened, the first interface 32a and the third interface 32c of the water diverting valve 32 are connected, and the fourth interface 32d and 32c of the water diverting valve 32 are connected.
  • One or more second interfaces 32b are connected, and the hot wastewater flows through the second water pump 24, the first interface 32a of the water diverting valve 32, the third interface 32c of the water diverting valve 32, the first hot water interface 124, and the second hot water
  • the interface 125, the fourth interface 32d of the water diverting valve 32 and the second interface 32b of the water diverting valve 32 finally enter the washing cavity 140 through the spray arm 145.
  • the first stop valve 38 is closed, and the first water pump 20 and the second water pump 24 are closed.
  • the second water pump 24 is opened, the first interface 32a and the second interface 32b of the water diverting valve 32 are connected, and the washing water in the washing cavity 140 flows through the second water pump 24 and the first interface of the water diverting valve 32 32a, the second interface 32b of the water diverting valve 32, and finally flows into the spray arm 145, and the spray arm 145 sprays wash water to the dishes.
  • the delivery pipeline 149 and the hot water pipeline 22 partially overlap.
  • the hot water pipeline 22 is used to circulate hot waste water.
  • the hot water pipeline 22 is used to deliver washing water to the inner tank 147 .
  • the second heat exchange water outlet interface 141 is provided in the water collection cup 148, and the second heat exchange water inlet interface 142 is provided in the spray arm 145.
  • the hot waste water flows out from the water collection cup 148 and passes through the spray arm through the hot water pipeline 22. 145 flows back to the inner tank 147.
  • the washing stages of the dishwasher 100 may include a pre-wash stage, a main wash stage, a cold bleach stage, a hot bleach stage and a drying stage.
  • the pre-washing stage mainly introduces new water for washing to soak the contaminants on the tableware, so that the contaminants are more easily washed away in the subsequent washing stages.
  • the pre-washing stage there is usually no need to heat new water, and new water can be introduced directly from the water tank 10.
  • the new water is usually normal temperature water.
  • the pre-washing stage usually includes a pre-drainage process, a water supply process, a washing process and a drainage process.
  • the pre-drainage process usually drains away the wash water left in the washing cavity 140 during the last washing.
  • the water supply process usually involves flowing water at normal temperature from the water tank 10 to the washing cavity 140. salary.
  • the washing process usually involves transporting the washing water in the washing cavity 140 to the spray arm 145 through the delivery pipe 149 to spray and clean the dishes.
  • the drainage process is to discharge the washing wastewater at this stage.
  • Both the main washing stage and the hot bleaching stage can include a water supply process, a heating process, a washing process and a drainage process.
  • detergent is usually added to the washing water, while in the hot bleaching stage, detergent is usually not added.
  • the cold bleaching stage can include a water supply process, a washing process and a drainage process.
  • the above heat recovery process can be carried out, and the discharged hot wastewater participates in the above heat recovery process.
  • the above heat recovery process can be carried out in the main washing stage, hot bleaching stage and cold bleaching stage. After heat recovery , and then proceed to the water supply process of the next washing stage.
  • the dishwasher does not have a cold bleaching stage, the above heat recovery process can be carried out in the main washing stage and the hot bleaching stage.
  • the above-mentioned washing stages are not intended to limit the dishwasher of this embodiment, and different models of dishwashers with different functions may have different washing stages.
  • the heated washing refers to heating the new water that has undergone heat exchange until the temperature reaches the set temperature.
  • the hot water that reaches the set temperature is then used for washing.
  • the reheating can be by washing.
  • the heating device of the unit 14 heats the wash water inside the wash cavity 140 .
  • This normal washing refers to direct washing using new water that has undergone heat exchange.
  • the dishwasher 100 may include a water tank 10 having a water storage cavity 101, a washing unit 14 having a washing cavity 140, and a heat exchanger 12.
  • a water tank 10 having a water storage cavity 101
  • a washing unit 14 having a washing cavity 140
  • a heat exchanger 12 By arranging the first water pump 20 and the new water pipeline 18, the new water in the water storage cavity 101 can circulate.
  • the second water pump 24 and the hot water pipeline 22 the hot waste water in the washing cavity 140 can circulate.
  • new water in the water storage cavity 101 can be transported to the washing cavity 140 .
  • the delivery pipeline 149 the washing water in the washing cavity 140 can be delivered to each spray arm 145.
  • the washing cavity 140 may have a bottom wall and a side wall.
  • the second heat exchange water inlet interface 142 and the second heat exchange water outlet interface 141 may both be provided on the bottom wall.
  • the second heat exchange water outlet interface 141 is provided on the bottom wall, and the second heat exchanger water outlet port 141 is provided on the bottom wall.
  • the exchange water inlet interface 142 is provided on the spray arm 145. The hot wastewater flows out of the washing cavity 140 from the bottom wall, and then flows back to the washing cavity 140 from the spray arm 145 through the transport pipeline 149 after being raised in height.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

一种洗碗机（100），包括水箱（10）、换热器（12）和洗涤单元（14），水箱（10）具有蓄水腔体（101）、第一热交换进水接口（103）及第一热交换出水接口（102），换热器（12）位于水箱（10）的外部，洗涤单元（14）具有洗涤腔体（140）、第二热交换进水接口（142）和第二热交换出水接口（141）；蓄水腔体（101）和洗涤腔体（140）通过给水管路（46）连接；第一热交换进水接口（103）和第一热交换出水接口（102）通过新水管路（18）连接，第二热交换进水接口（142）和第二热交换出水接口（141）通过热水管路（22）连接，流经热水热交换管段（221）的热废水和流经新水热交换管段（181）的新水在换热器（12）内部热交换，使新水的温度升高。

Description

洗碗机
相关申请的交叉引用
本申请要求于2022年08月23日提交中国专利局、申请号为202211011474.7、申请名称为“洗碗机”，以及于2022年08月23日提交中国专利局、申请号为202222228294.6、申请名称为“洗碗机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及洗涤设备领域，具体涉及一种洗碗机。
背景技术
洗碗机是一种替代人工清洗餐具的智能化产品，在工作过程中，洗碗机会对餐具进行不断的覆盖喷射洗涤，以达到清洁餐具的目的。为了缩短洗碗机的洗涤时间，相关技术中的洗碗机通常会对洗涤水进行加热，提高洗涤水的水温，使得高温洗涤水将餐具上的污染物冲走的同时，将热量带到餐具上，从而使得洗碗机能在较短的洗涤时间内获得较高的洗净率和干燥率，洗涤完成后，需要将洗涤废水排放掉，从而造成了较大的能耗浪费。
申请内容
本申请的主要目的是提供一种能够节约能耗的洗碗机。
为实现上述目的，本申请实施例提出一种洗碗机，具有换热过程，所述洗碗机包括，
水箱，所述水箱具有蓄水腔体及与所述蓄水腔体连通的第一热交换进水接口和第一热交换出水接口；
换热器，所述换热器位于所述水箱的外部，所述换热器具有换热腔体；
洗涤单元，所述洗涤单元具有洗涤腔体及与所述洗涤腔体连通的第二热交换进水接口和第二热交换出水接口；
给水管路，所述给水管路连接所述蓄水腔体和洗涤腔体；
新水管路，所述新水管路连接所述第一热交换进水接口和第一热交换出水接口，所述新水管路具有位于所述换热腔体内部的新水热交换管段；
第一水泵，所述第一水泵设于所述新水管路；
热水管路，所述热水管路连接所述第二热交换进水接口和第二热交换出水接口，所述热水管路具有位于所述换热腔体内部的热水热交换管段；
第二水泵，所述第二水泵设于所述热水管路；及，
在所述换热过程，流经所述热水热交换管段的热废水和流经所述新水热交换管段的新水热交换，使所述新水的温度升高。
通过将热废水和新水进行热交换，使新水的温度升高，实现了对热废水热量的回收利用，节约了能耗。
在一个实施例中，所述洗碗机还包括通断控制器，所述洗涤单元还包括输送管路及一个或多个喷臂，所述输送管路连接所述洗涤腔体和喷臂；所述新水管路、热水管路及输送管路的通断均由所述通断控制器控制。
各管路由通断控制器控制通断，从而能够实现热交换和洗涤的切换控制。
在一个实施例中，所述洗碗机还包括分水阀，所述分水阀设于所述输送管路；所述通断控制器包括第一截止阀和第二截止阀，所述第一截止阀设于所述新水管路，所述第二截止阀设于所述热水管路；及，在所述换热过程，所述第一水泵和第二水泵打开，所述第一截止阀和所述第二截止阀均打开，且所述分水阀关闭。
通过第一、第二截止阀实现对新水管路和热水管路的通断控制，从而能够实现热交换和洗涤的切换控制。
在一个实施例中，所述输送管路和所述热水管路具有公共管段；所述通断控制器包括第一截止阀和分水阀，所述第一截止阀设于所述新水管路，所述分水阀设于所述公共管段；及，在所述换热过程，所述第一水泵及所述第二水泵均打开，所述第一截止阀打开，所述分水阀使所述热水管路导通且使所述输送管路断开。
通过在热交换时控制第一截止阀打开和分水阀断开、洗涤时控制第一截止阀关闭和分水阀打开，实现热交换和洗涤的切换控制。
在一个实施例中，所述通断控制器包括第一截止阀和分水阀，所述第一截止阀设于所述新水管路；所述换热器具有第一热水接口及第二热水接口，所述热水热交换管段连接所述第一热水接口和所述第二热水接口；所述分水阀具有第一接口、第二接口、第三接口及第四接口，所述第一接口与所述第二热交换出水接口连通，所述第二接口与所述喷臂连通，所述第三接口与所述第一热水接口连通，所述第四接口与所述第二热水接口连通；及，在所述换热过程，所述第一接口和第三接口连通，且所述第二接口和第四接口连通。
通过在热交换时控制第一接口和第三接口连通、第二接口和第四接口连通；洗涤时控制第一接口和第二接口连通，实现热交换和洗涤的切换控制；同时，该分水阀也可以实现对喷嘴的分配控制。
本申请技术方案中，通过将热废水和新水进行热交换，使新水的温度升高，实现了对热废水热量的回收利用，节约了能耗；由于设置第一水泵和第二水泵，能够加快液体循环 流动的速度，提高了换热效率；由于换热器位于水箱的外部，不占用水箱的内部空间，从而能够有效提高水箱的用于储存新水的有效容积。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的设计。
图1为本申请一实施例提供的洗碗机的结构示意图；
图2为本申请另一实施例提供的洗碗机的结构示意图；
图3为本申请又一实施例提供的洗碗机的结构示意图；
图4为本申请实施例提供的洗碗机的换热器的结构示意图；
图5为本申请实施例提供的洗碗机的换热过程的流程框图。
附图标号说明：
洗碗机100，水箱10，蓄水腔体101，第一热交换出水接口102，第一热交换进水接口
103，新水出水接口104，新水进水接口105，进水管路106，换热器12，换热腔体121，第一新水接口122，第二新水接口123，第一热水接口124，第二热水接口125，洗涤单元14，洗涤腔体140，第二热交换出水接口141，第二热交换进水接口142，喷臂145，输送管路149，新水管路18，新水热交换管段181，第一管段182，第二管段183，第一水泵20，热水管路22，热水热交换管段221，第三管段222，第四管段223，第二水泵24，排水管路28，排水泵30，分水阀32，第一接口32a，第二接口32b，第三接口32c，第四接口32d，供水管路34，流量计36，第一截止阀38，第二截止阀40，截止阀42，截止阀44，给水管路46。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例方式作进一步地详细描述。
下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
如图1至图4所示，本申请实施例一种洗碗机100，包括水箱10、换热器12及洗涤单元14。水箱10限定出具有一定容积的蓄水腔体101，该蓄水腔体101能够储存洗涤用新水。洗涤单元14限定出具有一定容积的洗涤腔体140，该洗涤腔体140内可以设置支撑件，支撑件能够用于支撑餐具，餐具能够在该洗涤腔体140内被清洗干净。换热器12限定出具有一定容积的换热腔体121，具有较低温度的新水和具有较高温度的热水能够在该换热腔体121内进行热交换，使新水的温度升高。
请参阅图1，洗碗机100还包括新水管路18，水箱10具有第一热交换进水接口103以及第一热交换出水接口102，第一热交换进水接口103以及第一热交换出水接口102均与蓄水腔体101连通，新水管路18两端分别与第一热交换进水接口103以及第一热交换出水接口102连通，新水管路18设有第一水泵20，在第一水泵20的作用下，蓄水腔体101内的新水流入新水管路18，并经新水管路18重新流回蓄水腔体101，新水循环往复流动。
请参阅图2，洗碗机100还包括热水管路22，洗涤单元14具有第二热交换进水接口142以及第二热交换出水接口141，第二热交换进水接口142以及第二热交换出水接口141均与洗涤腔体140连通，热水管路22的两端分别与第二热交换进水接口142以及第二热交换出水接口141连通，热水管路22设有第二水泵24，在第二水泵24的作用下，洗涤腔体140内的热水经第二热交换出水接口141流入热水管路22，并经热水管路22以及第二热交换进水接口142重新流入洗涤腔体140，热水循环往复流动。
请参阅图4，新水管路18具有位于换热腔体121内部的新水热交换管段181。热水管路22具有位于换热腔体121内部的热水热交换管段221。新水通常是常温水，其温度较低。热水通常是洗涤废水，其温度较高。需要热量回收时，即需要热交换时，由于热水热交换管段221内的热废水的温度高于新水热交换管段181内的新水，新水吸收热量而温度升高，经过设定时长的循环流动和热交换，蓄水腔体101内的新水的温度整体升高。
本实施例中，由于换热器12整***于水箱10的外部，不占用水箱10的内部空间，从而能够有效提高水箱10的能够用于储存新水的有效容积，即，蓄水腔体101可以具有更大的容积。由于设置第一水泵20和第二水泵24，能够加快液体循环流动的速度，提高换热效率。通过将热废水和新水进行热交换，使新水的温度升高，实现了对热废水热量的回收利用，并能够有效减小加热新水到设定温度所需要的能耗，节省了能源。
请参阅图1，进一步的，洗碗机100还可以包括给水管路46，该给水管路46连接水箱10和洗涤单元14，水箱10内部的新水能够通过该给水管路46提供给洗涤单元14。具体的，水箱10可以具有新水出水接口104，该新水出水接口104与蓄水腔体101连通，洗涤单元14可以具有进水接口，该进水接口与洗涤腔体140连通，给水管路46的一端连通该新水出水接口104，给水管路46的另一端连通该进水接口。一般的，洗涤单元14的进水 接口和第二热交换进水接口142可以是不同的接口，两个接口相互独立设置。请参阅图，给水管路46上可以设置进行管路通断控制的另一截止阀42。
请参阅图2，洗涤腔体140可以包括内胆147和集水杯148，该集水杯148位于该内胆147的底壁并与内胆147连通，该内胆147和集水杯148均具有一定的容积。洗涤单元14的进水接口、第二热交换进水接口142和第二热交换出水接口141可以均设于该集水杯148。
进一步的，请结合参阅图3，洗碗机100还可以包括排水管路28，该排水管路28与洗涤单元14连接，洗涤产生的废水能够通过该排水管路28排出。具体的，洗涤单元14具有排水接口，该排水接口与洗涤腔体140连通，排水管路28与该排水接口连通。为了加快废水排出的速度，可以在排水管路28上设置排水泵30。一般的，洗涤单元14的排水接口和第二热交换出水接口141可以是不同的接口，两个接口可以相互独立设置。即，洗涤单元14可以具有相互独立设置的进水接口、排水接口、第二热交换进水接口142及第二热交换出水接口141，具体地，进水接口、排水接口、第二热交换进水接口142及第二热交换出水接口141均开设于集水杯148上，该进水接口用于通入蓄水腔体101输出的洗涤用新水，该排水接口用于排出洗涤腔体140的洗涤废水，第一热交换进水接口142和第一热交换出水接口141用于供热废水循环流动。通常的，蓄水腔体101内的新水可以在自身重力作用下通过给水管路46流入洗涤腔体140，因此，在重力方向上，水箱10的新水出水接口104可以高于洗涤单元14的进水接口。
请参阅图1，进一步的，洗涤单元14还包括喷臂145和输送管路149，该喷臂145位于洗涤单元14的洗涤腔体140内，该喷臂145可以有一个或多个。每个喷臂145可以具有入水口，洗涤水可以通过入水口进入喷臂145，并可以通过喷臂145的喷嘴喷向餐具，从而对餐具进行清洗。集水杯148通过输送管路149与各喷臂145连接。输送管路149上可以设有洗涤泵，该洗涤泵能够从集水杯148内抽取洗涤水并增压后通过输送管路149输送到各喷臂145。喷臂145有多个时，其可以在重力方向上间隔分布，也可以在水平方向间隔分布，或者在水平方向、重力方向上混合分布。
可选的，洗涤泵可以是上述第二水泵24，即，需要换热时，第二水泵24使热废水在热水管路22中循环流动。需要洗涤时，第二水泵24将洗涤腔体140内的洗涤水通过输送管路149输送到各喷臂145。此结构中，由于仅需设置一个水泵，因此结构简单。
可选的，洗碗机100包括相互独立设置的洗涤泵和第二水泵24，对应的，洗涤单元14设有与第二水泵24连通的第二热交换出水接口141及与洗涤泵连通的出水接口，该出水接口和第二热交换出水接口141可以相互独立设置。此结构中，输送管路149和热水管路22可以没有共用管段。
请参阅图1，在一个实施例中，水箱10还可以包括进水管路106和新水进水接口105， 该进水管路106与蓄水腔体101被分隔开，该新水进水接口105位于进水管路106的底部并与该进水管路106连通，洗碗机100还包括供水管路34，该新水进水接口105能够通过供水管路34连接市政水源，使常温的新水能够通过该供水管路34、新水进水接口105流入进水管路106。该进水管路106的顶部可以与蓄水腔体101的顶部连通，使新水能够通过进水管路106流入并存储在蓄水腔体101内。水箱10的第一热交换进水接口103、第一热交换出水接口102、新水进水接口105及新水出水接口104可以均位于水箱10的底部并相互独立设置。
请参阅图1，进一步的，供水管路34或进水管路106上可以设置流量计36，从而能够准确计量流入水箱10的新水水量。流量计36设于供水管路34时，便于使用者观察计量。流量计36设于进水管路106时，其内置于水箱10的内部。供水管路34可以设有截止阀44。进水管路106位于水箱10内部，其可以采用水管，也可以是由水箱10内部的多个挡板围设而成。
请参阅图1以及图4，在一个实施例中，新水管路18连接水箱10和换热器12，新水管路18穿设换热器12，该换热器12将新水管路18分为第一管段182、新水热交换管段181及第二管段183，第一管段182是位于换热器12和第一热交换出水接口102之间的管段，热交换管段181是位于换热腔体121内的管段，第三管段183是位于换热器12和第一热交换进水接口103之间的管段。热水管路22连接洗涤腔体140和换热器12。热水管路22穿设换热器12，该换热器12将热水管路22分为第三管段222、热水热交换管段221及第四管段223，第三管段222是位于换热器12和第二热交换出水接口141之间的管段，热水热交换管段221是位于换热腔体121内的管段，第四管段223是位于换热器12和第二热交换热水进水接口142之间的管段。
可选的，换热器12具有第一新水接口122、第二新水接口123、第一热水接口124和第二热水接口125。新水管路18可以是一个整体管路，其一端连接第一热交换出水接口102，其另一端连接第一热交换进水接口103，该两端之间的部分是新水管路18的中部，如图4所示，该中部穿设热交换器12的第一新水接口122和第二新水接口123。热水管路22可以是一个整体管路，其一端连接第二热交换出水接口141，其另一端连接第二热交换进水接口142，该两端之间的部分是热水管路22的中部，如图4所示，该中部穿设热交换器12的第一热水接口124和第二热水接口125。
可选的，新水管路18可以由顺次衔接的多个独立设置的管段组成。热水管路22可以由顺次衔接的多个独立设置的管段组成。换热器12可以具有与换热腔体121连通的第一新水接口122、第二新水接口123、第一热水接口124和第二热水接口125。
新水热交换管段181连接第一新水接口122和第二新水接口123。第一管段182连接第 一热交换出水接口102和第一新水接口122。第二管段183连接第一热交换进水接口103和第二新水接口123。
热水热交换管段221连接第一热水接口124和第二热水接口125。第三管段222连接第二热交换出水接口141和第一热水接口124。第四管段223连接第二热交换进水接口142和第二热水接口125。
可选的，新水热交换管段181和热水热交换管段221可以由换热器限定出。例如，换热腔体121可以被分隔为两部分，一部分作为新水热交换管段181，另一部分作为热水热交换管段221。如，换热腔体121内可以设置多个挡板，一组挡板形成该新水热交换管段181，另一组挡板形成该热水热交换管段221。
对于新水热交换管段181和热水热交换管段221，请结合参阅图4，在一种示例性的具体结构中，新水热交换管段181和热水热交换管段221相邻设置，且新水热交换管段181和热水热交换管段221均可以呈迂回弯折状设于换热器12的换热腔体121内。由于两管路呈迂回弯折状，可以增大新水、热水流经的长度，提高热交换效果。为了进一步提高热交换效果，新水热交换管段181和热水热交换管段221可以由传热性能好的材料制成，也可以在两个管路之间设置传热性能良好的材料层，或者可以在热水热交换管段221上设置散热部件，如散热鳍片等。对于新水热交换管段181和热水热交换管段221的形状，可以根据散热要求和制造要求设计。
在一个实施例中，洗碗机100的新水管路18和热水管路22需要进行通断控制。需要对洗涤废水进行热量回收时，新水管路18和热水管路22均导通，新水和热废水分别在新水管路18、热水管路22中流动，在换热腔体121内进行热交换，使新水温度升高。不需要热量回收时，新水管路18和热水管路22各自断开，水箱10能够通过给水管路46给洗涤腔体140供水。洗涤腔体140内的水能够通过输送管路149输送到各喷臂145，实现对餐具的喷淋洗涤。
可选的，新水管路18和热水管路22由水泵实现通断控制，即，第一水泵20和第二水泵24可以是具有截止功能的水泵。第一水泵20设于新水管路18，如可以设于新水管路18的第一管段182或第二管段183，一般的，第一水泵20可以设于第一管段182，使其更靠近水箱10的第一热交换出水接口102。第二水泵24设于热水管路22，如可以设于热水管路22的第三管段222或第四管段223，一般的，第二水泵24可以第三管段222，使其更靠近洗涤单元14的第二热交换出水接口141。需要热量回收时，第一水泵20、第二水泵24均打开，使新水管路18和热水管路22均导通。热量回收结束时，第一水泵20、第二水泵24均截止，使新水管路18和热水管路22均断开。
可选的，请结合参阅图1，新水管路18和热水管路22由截止阀实现通断控制。即，新 水管路18设有第一截止阀38，热水管路22设有第二截止阀40。第一截止阀38可以位于新水管路18的第一管段182，第一截止阀38可以位于第一水泵20和换热器12之间。第二截止阀40可以位于热水管路22的第三管路222，第二截止阀40可以位于第二水泵24和换热器12之间。
需要热量回收时，第一截止阀38和第二截止阀40均打开，第一水泵20和第二水泵24均工作，使新水能够在新水管路18内循环流动，使热废水能够在热水管路22内循环流动，并在换热器12内部进行热交换。热量回收结束时，第一水泵20、第二水泵24关闭，第一截止阀38和第二截止阀40均关闭。
此结构中，第二热交换进水接口142和第二热交换出水接口141均设于集水杯148，热废水从集水杯148流出并经热水管路22流回集水杯148。洗涤碗机100可以包括分水阀32，分水阀32设于输送管路149，喷臂145有多个时，分水阀32可以选择地将洗涤水分配给一个喷臂145或同时分配给多个喷臂145。如图2所示，热水管路22的第三管段222和输送管路149具有相重合的公共管段224，第二水泵24位于该公共管段224。需要热量回收时，分水阀32关闭。需要输送洗涤水时，分水阀32打开，在第二水泵24的作用下，洗涤腔体140内的洗涤水流经第二水泵24、分水阀32后进入各喷臂145。在一种变换结构中，可以不设置分水阀32，需要输送洗涤水时，洗涤腔体100内的洗涤水经第二水泵24、输送管路149直接输送到各喷臂145；热量回收时，该输送管路149可以断开。
此结构中，热量回收时，分水阀32关闭，热废水不会经输送管路149进入内胆147，能够减少热量损失。
可选的，请结合参阅图2，新水管路18由截止阀实现通断控制，热水管路22由分水阀32实现通断控制。新水管路18设有第一截止阀38，该第一截止阀38可以设于新水管路18的第二管段183。分水阀32具有一个第一接口32a、一个或多个第二接口32b及一个第三接口32c。第一接口32a与第二水泵24的出水口连通，第二接口32b与喷臂145的入水口连通，第三接口32c与换热器12的第一热水接口124连通。第二接口32b可以有一个或多个，喷臂145可以有一个或多个，第二接口32b与喷臂145一一对应。
需要热量回收时，第一水泵20和第二水泵24均打开，分水阀32的第一接口32a和第三接口32c连通，使第二水泵24的出水口和换热器12的第一热水接口124连通，使整个热水管路22导通，热废水能够在热水管路22内循环流动。热量回收结束时，第一截止阀38、第一水泵20、第二水泵24关闭，分水阀32的第一接口32a和第三接口32c断开连通。需要输送洗涤水时，第二水泵24打开，使第一接口32a和第二接口32b连通，第二水泵24的出水口和喷臂145的入水口连通，使整个输送管路149导通，洗涤腔体140内的洗涤水能够通过输送管路149通入喷臂145。喷臂145有多个时，可以控制使第一接口32a与 其中一个第二接口32b连通或与多个第二接口32b同时连通，使洗涤水能够经过第二水泵24、分水阀32流入一个或多个喷臂145。
此结构中，热水管路22的第三管段222和输送管路149可以具有公共管段224，第二水泵24设于该公共管段224。
可选的，请结合参阅图3及图4，新水管路18由第一截止阀38实现通断控制，热水管路22由分水阀32实现通断控制。
第一截止阀38设于新水管路18的第二管段183，其位于换热器12的第二新水接口122和水箱10的第一热交换进水接口103之间。
第二水泵24设于热水管路22的第三管段222。分水阀32具有一个第一接口32a、一个或多个第二接口32b、一个第三接口32c及一个第四接口32d。第一接口32a与第二水泵24的出水口连通，第二接口32b与喷臂145一一对应，每个第二接口32b与对应的喷臂145的入水口连通，第三接口32c与换热器12的第一热水接口124连通，第四接口32d与换热器12的第二热水接口125连通。
需要热量回收时，第一水泵20和第二水泵24均打开，第一截止阀38打开，分水阀32的第一接口32a和第三接口32c连通，分水阀32的第四接口32d和一个或多个第二接口32b连通，热废水流经第二水泵24、分水阀32的第一接口32a、分水阀32的第三接口32c、第一热水接口124、第二热水接口125、分水阀32的第四接口32d及分水阀32的第二接口32b，并最终通过喷臂145进入洗涤腔体140内。热量回收结束时，第一截止阀38关闭，第一水泵20和第二水泵24关闭。需要输送洗涤水时，第二水泵24打开，分水阀32的第一接口32a和第二接口32b连通，洗涤腔体140内的洗涤水流经第二水泵24、分水阀32的第一接口32a、分水阀32的第二接口32b，并最终流入喷臂145，由喷臂145向餐具喷洒洗涤水。
此结构中，输送管路149和热水管路22部分重合，需要热量回收时，热水管路22用于循环热废水。洗涤时，热水管路22用于将洗涤水输送至内胆147。第二热交换出水接口141设于集水杯148，第二热交换进水接口142设于喷臂145，需要热量回收时，热废水从集水杯148流出，并经热水管路22通过喷臂145流回内胆147。
结合上述实施例，说明一种实施例提供的洗碗机100的工作过程。洗碗机100的洗涤阶段可以包括预洗阶段、主洗阶段、冷漂阶段、热漂阶段及干燥阶段。预洗阶段主要是通入洗涤用新水以浸泡餐具上的污染物，从而使得污染物在后续洗涤阶段中更容易被洗掉。预洗阶段通常无需加热新水，可以直接从水箱10通入新水，该新水通常为常温水。预洗阶段通常包括预排水过程、给水过程、洗涤过程及排水过程，该预排水过程通常是排掉上次洗涤时洗涤腔体140内遗留的洗涤水。给水过程通常是由水箱10向洗涤腔体140通入常温 新水。洗涤过程通常是将洗涤腔体140内的洗涤水通过输送管路149输送到喷臂145，对餐具进行喷淋清洗。排水过程是将本阶段的洗涤废水排出。主洗阶段和热漂阶段均可以包括给水过程、加热过程、洗涤过程和排水过程，主洗阶段通常会在洗涤水中添加清洗剂，热漂阶段通常不会添加清洗剂。冷漂阶段可以包括给水过程、洗涤过程和排水过程，冷漂阶段中通常不需要对洗涤水进行加热。通常的，上一洗涤阶段排水前，可以进行上述热量回收过程，排出的热废水参与上述热量回收过程，如主洗阶段、热漂阶段和冷漂阶段都可以进行上述热量回收过程，热量回收后，再进行下一洗涤阶段的给水过程。当洗碗机没有冷漂阶段时，主洗阶段和热漂阶段可以进行上述热量回收过程。上述洗涤阶段不用来作为对本实施例洗碗机进行限定，不同型号的功能的洗碗机可以具有不同的洗涤阶段。
请结合参阅图1及图5，对于每次完整的洗涤过程，在本洗涤阶段排水前S500和下一洗涤阶段排水前S506之前，包括如下步骤：
S501，需要热量回收时，打开第一水泵20和第二水泵24，打开第一截止阀38和第二截止阀40，并关闭分水阀32；
S502，运行设定时长，使新水热交换管段181内的新水和热水热交换管段221内的热废水充分热交换，使新水的温度升高；设定时长如2分钟～10分钟，该设定时长可以根据洗涤要求设置；
S503，热量回收完成时，关闭第一水泵20和第二水泵24，关闭第一截止阀38和第二截止阀40；
S504，给水时，打开第二水泵24以及分水阀32，使得水箱10内的新水流入洗涤腔体140，该新水由于经过热交换过程，其相对常温，具有较高的温度；
S505，正常洗涤步骤或加热洗涤，该加热洗涤是指将已经过热交换的新水再次加热直至温度达到设定温度，该达到设定温度的热水再用于洗涤，该再次加热可以是利用洗涤单元14的加热装置对洗涤腔体140内部的洗涤水进行加热。该正常洗涤是指利用已经过热交换的新水直接进行洗涤。
对于洗碗机100，其可以包括具有蓄水腔体101的水箱10、具有洗涤腔体140的洗涤单元14及换热器12。通过设置第一水泵20和新水管路18，使蓄水腔体101内的新水能够循环流动。通过设置第二水泵24和热水管路22，使洗涤腔体140内的热废水能够循环流动。通过设置给水管路46，使蓄水腔体101内的新水能够输送到洗涤腔体140。通过设置输送管路149，使洗涤腔体140内的洗涤水能够输送到各喷臂145。洗涤腔体140可以具有底壁和侧壁，第二热交换进水接口142和第二热交换出水接口141可以均设于该底壁，热交换时，热废水从底壁流出洗涤腔体140，并经热水管路22从底壁重新流回洗涤腔体140，该热交换过程热量损失较小。另一种结构中，第二热交换出水接口141设于底壁，第二热 交换进水接口142设于喷臂145，热废水从底壁流出洗涤腔体140，经高度提升后通过输送管路149从喷臂145重新流回洗涤腔体140。
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (10)

  1. 一种洗碗机，其中，具有换热过程，所述洗碗机包括，
    水箱，所述水箱具有蓄水腔体及与所述蓄水腔体连通的第一热交换进水接口和第一热交换出水接口；
    换热器，所述换热器位于所述水箱的外部，所述换热器具有换热腔体；
    洗涤单元，所述洗涤单元具有洗涤腔体及与所述洗涤腔体连通的第二热交换进水接口和第二热交换出水接口；
    给水管路，所述给水管路连接所述蓄水腔体和洗涤腔体；
    新水管路，所述新水管路连接所述第一热交换进水接口和第一热交换出水接口，所述新水管路具有位于所述换热腔体内部的新水热交换管段；
    第一水泵，所述第一水泵设于所述新水管路；
    热水管路，所述热水管路连接所述第二热交换进水接口和第二热交换出水接口，所述热水管路具有位于所述换热腔体内部的热水热交换管段；
    第二水泵，所述第二水泵设于所述热水管路；及，
    在所述换热过程，流经所述热水热交换管段的热废水和流经所述新水热交换管段的新水在所述换热腔体的内部热交换，使所述新水的温度升高。
  2. 如权利要求1所述的洗碗机，其中，
    所述洗碗机还包括通断控制器；
    所述洗涤单元还包括输送管路及一个或多个喷臂，所述喷臂设于所述洗涤腔体内部，所述输送管路连接所述洗涤腔体和喷臂；及，
    所述新水管路、热水管路及输送管路的通断均由所述通断控制器控制。
  3. 如权利要求2所述的洗碗机，其中，
    所述洗涤腔体包括内胆和集水杯，所述喷臂位于所述内胆内部，所述集水杯位于所述内胆的底部并与所述内胆连通；
    所述第二热交换出水接口设于所述集水杯，所述第二热交换进水接口设于所述集水杯或设于所述喷臂。
  4. 如权利要求2所述的洗碗机，其中，
    所述洗碗机还包括分水阀，所述分水阀设于所述输送管路；
    所述通断控制器包括第一截止阀和第二截止阀，所述第一截止阀设于所述新水管路，所述第二截止阀设于所述热水管路；及，
    在所述换热过程，所述第一水泵以及所述第二水泵打开，所述第一截止阀和所述第二截止阀均打开，且所述分水阀关闭。
  5. 如权利要求2所述的洗碗机，其中，
    所述输送管路和所述热水管路具有公共管段；
    所述通断控制器包括第一截止阀和分水阀，所述第一截止阀设于所述新水管路，所述分水阀设于所述公共管段；及，
    在所述换热过程，所述第一水泵以及所述第二水泵打开，所述第一截止阀打开，所述分水阀使所述热水管路导通且使所述输送管路断开。
  6. 如权利要求2所述的洗碗机，其中，
    所述通断控制器包括第一截止阀和分水阀，所述第一截止阀设于所述新水管路；
    所述换热器具有第一热水接口及第二热水接口，所述热水热交换管段连接所述第一热水接口和所述第二热水接口；
    所述分水阀具有第一接口、第二接口、第三接口及第四接口，所述第一接口与所述第二热交换出水接口连通，所述第二接口与所述喷臂连通，所述第三接口与所述第一热水接口连通，所述第四接口与所述第二热水接口连通；及，
    在所述换热过程，所述第一水泵以及所述第二水泵打开，所述第一接口和第三接口连通，且所述第二接口和第四接口连通。
  7. 如权利要求1所述的洗碗机，其中，所述洗涤单元还包括能够对洗涤腔体内的洗涤水进行加热的加热装置。
  8. 如权利要求1所述的洗碗机，其中，所述洗涤单元还具有排水接口，所述洗碗机还包括排水管路和排水泵，所述排水管路与所述洗涤单元的排水接口连接，所述排水泵设于所述排水管路。
  9. 如权利要求1所述的洗碗机，其中，所述水箱还包括进水管路，所述进水管路与所述蓄水腔体连通。
  10. 如权利要求1所述的洗碗机，其中，所述洗碗机具有主洗阶段及热漂阶段，所述主洗阶段和所述热漂阶段均具有所述换热过程。
PCT/CN2023/097578 2022-08-23 2023-05-31 洗碗机 WO2024041071A1 (zh)

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