Dish washing machine

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a dish washing machine. The dish washing machine comprises a base, an inner container, a heat pump assembly, a water tank assembly and a washing pump. The inner container is arranged above the base; the heat pump assembly comprises a compressor, an evaporator and a condenser, a first fluid channel and a second fluid channel are arranged in the condenser, and the compressor, the first fluid channel and the evaporator are sequentially communicated to form a circulating medium flow channel; the water tank assembly is communicated with the inner container; the water tank assembly, the washing pump and the second fluid channel are communicated in sequence to form a circulating heating flow channel; the washing pump and the compressor are diagonally arranged on the base, the distance between the washing pump and the compressor is increased, and the washing pump and the compressor are prevented from generating increased resultant force on the base, so that the risk of cracking of the base is reduced, and separation of a refrigerant and a heat source is achieved; heat generated in the working process of the washing pump is prevented from interfering with work of the heat pump assembly.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a dishwasher. Background Technology

[0002] As relevant standards continue to raise the energy efficiency requirements for dishwashers, a technology has emerged in the industry that uses a heat pump system to heat the washing water in the dishwasher, which can significantly reduce the energy consumption of the dishwasher.

[0003] Heat pump dishwashers include a heat pump component that heats the washing water and a washing pump that drives the water flow. Both the heat pump component and the washing pump are mounted on the base. The compressor in the heat pump component and the washing pump both vibrate when they are working. After prolonged use, the base may experience fatigue deformation, cracks, damage, or even the risk of cracking. In addition, the refrigerant in the compressor is flammable. If it leaks and comes into contact with a heat source (such as the washing pump), it may spontaneously combust, reducing the safety of the dishwasher. Utility Model Content

[0004] The purpose of this invention is to provide a dishwasher that can solve the problem of the base cracking easily and ensure the safety of the dishwasher.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A dishwasher, comprising:

[0007] Base;

[0008] The inner liner is located above the base;

[0009] A heat pump assembly, comprising a compressor, an evaporator, and a condenser, wherein the condenser is provided with a first fluid channel and a second fluid channel, and the compressor, the first fluid channel, and the evaporator are sequentially connected to form a circulating medium flow channel;

[0010] The water tank assembly is connected to the inner tank;

[0011] A washing pump, wherein the water tank assembly, the washing pump, and the second fluid channel are sequentially connected to form a circulating heating channel;

[0012] The washing pump and the compressor are arranged diagonally on the base.

[0013] As an alternative to the aforementioned dishwasher, the base is provided with a rectangular receiving cavity, and the washing pump and the compressor are arranged diagonally within the receiving cavity.

[0014] As an alternative to the aforementioned dishwasher, one of the compressor and the washing pump is located on the rear side of the sink assembly, and the other is arranged in the left-right direction with the sink assembly.

[0015] As an alternative to the aforementioned dishwasher, the sink assembly is disposed at one end of the base near the front side;

[0016] And / or, the sink assembly is located at the center of the base in the left-right direction.

[0017] As an alternative to the aforementioned dishwasher, the condenser and the sink assembly are arranged diagonally on the base.

[0018] As an alternative to the aforementioned dishwasher, the compressor is located behind the sink assembly, and the condenser is located behind the washing pump.

[0019] As an alternative to the aforementioned dishwasher, the condenser includes a heat exchange tube that is U-shaped and has its opening facing the front side of the base.

[0020] As an optional solution for the aforementioned dishwasher, the dishwasher also includes a water softener, which is disposed on the base. The inlet end of the water softener is connected to a water source, and the outlet end of the water softener is connected to the water tank assembly.

[0021] As an alternative to the aforementioned dishwasher, the water softener is located on one side of the sink assembly along the left-right direction, and the other of the compressor and the washing pump is located on the other side of the sink assembly along the left-right direction.

[0022] As an alternative to the dishwasher described above, the dishwasher also includes a drain pump connected to the sink assembly, and the drain pump is located between the water softener and the sink assembly.

[0023] The beneficial effects of this utility model are:

[0024] In the dishwasher provided by this utility model, the washing pump and compressor are arranged diagonally, which can increase the distance between the washing pump and compressor within a limited range, avoid the washing pump and compressor generating a greater combined force on the base, and thus reduce the risk of the base cracking.

[0025] Furthermore, during compressor operation, refrigerant leakage can occur due to vibration. Since refrigerant is flammable, it needs to be kept away from heat sources inside the dishwasher. The wash pump itself generates heat during operation. Therefore, by placing the wash pump and compressor diagonally, refrigerant and heat sources can be separated, preventing the heat generated by the wash pump from interfering with the operation of the heat pump components and improving safety during dishwasher use. Attached Figure Description

[0026] Figure 1 This is a top view of a portion of the structure of the dishwasher provided by this utility model;

[0027] Figure 2 This is a structural schematic diagram of a portion of the dishwasher provided by this utility model.

[0028] In the picture:

[0029] 10. Base; 20. Heat pump assembly; 21. Compressor; 22. Condenser; 30. Water tank assembly; 31. Diverter valve; 40. Washing pump; 50. Water softener; 60. Drain pump. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] like Figure 1 and Figure 2 As shown, this embodiment provides a dishwasher, including a base 10, an inner tub, a sink assembly 30, a spray mechanism, a washing pump 40, and a heat pump assembly 20. The inner tub is disposed above and fixed to the base 10, and a washing chamber is formed inside the inner tub, which can hold tableware or cookware to be washed. At least the spray end of the spray mechanism is located inside the washing chamber, and the spray mechanism is used to spray washing water into the washing chamber. The sink assembly 30 is connected to both the inner tub and the spray mechanism. The washing water in the sink assembly 30 flows under the drive of the washing pump 40, is heated by the heat pump assembly 20, flows back into the sink assembly 30, and is then sprayed into the washing chamber by the spray mechanism to wash the tableware or cookware.

[0035] The heat pump assembly 20 includes a compressor 21, an evaporator, and a condenser 22. The evaporator, compressor 21, and condenser 22 are connected in sequence to form a circulating medium channel for heat exchange. The heat exchange medium in the circulating heat exchange channel can exchange heat with the washing water to transfer heat to the washing water and achieve the function of heating the washing water.

[0036] Specifically, the condenser 22 includes a first fluid channel and a second fluid channel. The outlet of the compressor 21 is connected to the inlet of the first fluid channel, the outlet of the first fluid channel is connected to the inlet of the evaporator, and the outlet of the evaporator is connected to the inlet of the compressor 21, forming a circulating medium flow channel. The inlet of the washing pump 40 is connected to the water tank assembly 30, the outlet of the washing pump 40 is connected to the inlet of the second fluid channel, and the outlet of the second fluid channel is connected to the water tank assembly 30, forming a circulating heating flow channel.

[0037] In this embodiment, the sink assembly 30 includes a sink and a water distribution valve 31. The sink is located below the inner tank and communicates with the washing chamber. The water distribution valve 31 is connected to both the sink and the spray mechanism. When the dishwasher is operating, the washing water first enters the sink, is heated by the circulating heating channel, and then flows to the water distribution valve 31. The water then enters the spray mechanism through the water distribution valve 31 to spray the dishes or cookware in the washing chamber. The washing water on the dishes or cookware flows to the bottom of the washing chamber and enters the water cup. This cycle repeats, achieving water recycling and improving water utilization.

[0038] In this embodiment, the washing pump 40 and the compressor 21 are arranged diagonally on the base 10, which can reduce the risk of the base 10 cracking, reduce the risk of refrigerant leakage and combustion, ensure the safety of the dishwasher, and optimize the layout of the dishwasher's components.

[0039] When the dishwasher is working normally, both the compressor 21 and the wash pump 40 vibrate according to a certain pattern, causing both to exert a certain force on the base 10. By arranging the wash pump 40 and the compressor 21 diagonally, the distance between them can be increased within a limited range, avoiding an increased combined force on the base 10 and thus reducing the risk of the base 10 cracking.

[0040] Furthermore, during operation, the compressor 21 experiences refrigerant leakage due to vibration. Since the refrigerant is flammable, it needs to be kept away from heat sources inside the dishwasher. The wash pump 40 also generates heat during operation. Therefore, by positioning the wash pump 40 and compressor 21 diagonally, the refrigerant and heat source can be separated, preventing the heat generated by the wash pump 40 from interfering with the operation of the heat pump assembly 20 and improving safety during dishwasher use.

[0041] The base 10 is provided with a receiving cavity, in which the heat pump assembly 20, the sink assembly 30 and the washing pump 40 are all housed, so that the base 10 can better accommodate and protect the components, resulting in a more compact structure.

[0042] like Figure 1 As shown, the receiving cavity is roughly rectangular, and the washing pump 40 and compressor 21 are arranged diagonally along the front-to-back direction. That is, the washing pump 40 and compressor 21 are arranged roughly along one diagonal of the receiving cavity to maximize the distance between the washing pump 40 and compressor 21.

[0043] In this embodiment, the compressor 21 is located near the rear side of the receiving cavity, and the washing pump 40 is located near the front side of the receiving cavity. In other embodiments, the compressor 21 may be located near the front side of the receiving cavity, and correspondingly, the washing pump 40 may be located near the rear side of the receiving cavity, so that they are arranged diagonally.

[0044] To make efficient use of the space within the accommodating cavity, the compressor 21 is positioned at the rear of the sink assembly 30, and the washing pump 40 is arranged horizontally with the sink assembly 30. Specifically, the washing pump 40 is located on the left side of the sink assembly 30 to fully utilize the space on the left side of the sink assembly 30.

[0045] The water tank assembly 30 is relatively large. Placing the water tank assembly 30 in front of the compressor 21 can make full use of the space between the washing pump 40 and the compressor 21 without increasing the size of the base 10 in the front-back direction, thus making full use of the space. The washing pump 40 and the water tank assembly 30 are close to each other, which facilitates communication between them. The water tank assembly 30 between the washing pump 40 and the compressor 21 can also insulate the transfer of heat to the compressor 21, which helps to prevent the refrigerant from coming into contact with the heat source.

[0046] It should be noted that the front side of the base 10 refers to the direction in which the opening of the washing chamber in the dishwasher faces. The rear side and the left and right sides of the base 10 are defined accordingly based on this front side.

[0047] In this embodiment, the sink assembly 30 is located at one end of the base 10 near the front side, so that sufficient space is reserved between the rear side of the sink assembly 30 and the side wall of the receiving cavity for installing the compressor 21.

[0048] Optionally, the sink assembly 30 can be located at the center of the base 10 in the left-right direction, so that the sink assembly 30 can be connected to the inner liner.

[0049] Optionally, the condenser 22 and the water tank assembly 30 are arranged diagonally on the base 10 to ensure sufficient space for installing the condenser 22 and the water tank assembly 30 respectively, so as to make full use of the space within the base 10.

[0050] To facilitate the connection of the condenser 22 to the water tank assembly 30, the water pump, and the compressor 21, the condenser 22 and the compressor 21 are arranged in a left-right direction, with the condenser 22 located behind the washing pump 40. This arrangement, with the condenser 22 adjacent to the compressor 21, the water tank assembly 30, and the washing pump 40, facilitates connection of the condenser 22 to these components, simplifies the piping structure for the refrigerant and washing water, resulting in a more compact structure and reduced costs.

[0051] In this embodiment, the condenser 22 includes a heat exchange tube, within which a first fluid channel and a second fluid channel are formed. The heat exchange tube is approximately U-shaped. The U-shape of the heat exchange tube reduces the footprint of the condenser 22 and extends its length, thereby ensuring sufficient heat exchange area to improve the heating effect on the washing water.

[0052] For example, the heat exchange tube includes an inner tube and an outer tube nested together, with a first fluid channel formed between the inner tube and the outer tube, and a second fluid channel formed inside the inner tube; or, a second fluid channel is formed between the inner tube and the outer tube, and a first fluid channel is formed inside the inner tube.

[0053] The condenser 22 extends in the front-to-back direction to make full use of the space in the base 10 in the front-to-back direction. In addition, the sink assembly 30 and the condenser 22 are arranged in a generally front-to-back direction, and the wash pump 40 and the condenser 22 are arranged in a generally front-to-back direction. By setting the condenser 22 to extend in the front-to-back direction, it is convenient to connect the condenser 22 to the sink assembly 30 and the wash pump 40 respectively, thereby simplifying the piping between the three, saving space and reducing costs.

[0054] Specifically, the opening of the U-shaped heat exchange tube faces the front of the base 10. This arrangement causes both ends of the heat exchange tube to extend towards the front of the base 10, that is, both ends of the heat exchange tube extend towards the water tank assembly 30 and the washing pump 40 respectively, so that the second fluid channel can be connected to the water tank assembly 30 and the washing pump 40 respectively.

[0055] To reduce limescale buildup in the dishwasher, the dishwasher also includes a water softener 50. The inlet of the water softener 50 is connected to a water source, such as tap water, and the outlet of the water softener 50 is connected to the sink assembly 30. When the dishwasher is working, the raw water supplied by the water source first enters the water softener 50, where the ion concentration in the water is reduced to obtain soft water. The soft water then enters the sink assembly 30 as washing water.

[0056] When a dishwasher is working, the washing water is heated before use. Because the concentration of calcium and magnesium ions in the tap water is relatively high and the water quality is hard, these ions can easily react with the detergent to form limescale after the water temperature rises. Limescale not only affects the washing effect of the dishwasher, but also clogs the pipes and reduces the service life of the dishwasher.

[0057] Therefore, in this embodiment, the dishwasher is equipped with a water softener 50, which can produce soft water for washing, reduce the concentration of calcium and magnesium ions in the water, and reduce the probability of calcium and magnesium ions reacting with detergent to form scale after the water temperature rises, thereby avoiding pipe blockage and preventing damage to tableware, cookware or dishwasher.

[0058] In this embodiment, the water softener 50 is mounted on the base 10, located below the inner tank, to facilitate communication with the water tank assembly 30.

[0059] To fully utilize the space within the base 10, the water softener 50 is located on one side of the sink assembly 30 along the left-right direction, and the washing pump 40 is located on the other side of the sink assembly 30 along the left-right direction. The sink assembly 30 is located at the center of the base 10 along the left-right direction. By placing the water softener 50 and the washing pump 40 on opposite sides of the sink assembly 30, we can ensure that the water softener 50 and the washing pump 40 have sufficient installation space and avoid interference between them. Furthermore, the side of the water softener 50 is the water inlet side of the sink assembly 30, and the side of the washing pump 40 is the circulating water outlet side of the sink assembly 30. Separating the water inlet and outlet sides of the sink assembly 30 facilitates separate pipe layout, resulting in a simple and clear water circuit structure for washing water, which is convenient for maintenance and installation.

[0060] Specifically, the water softener 50 is located on the right side of the sink assembly 30, and the water softener 50 can extend approximately in the front-to-back direction to make full use of the space on the right side of the compressor 21 and the sink assembly 30.

[0061] To facilitate drainage, the dishwasher also includes a drain pump 60, which is connected to the sink assembly 30. When the drain pump 60 is activated, it can drain the water in the sink assembly 30 out of the dishwasher. For example, the inlet end of the drain pump 60 is connected to the sink assembly 30, and the outlet end of the drain pump 60 extends to the outside of the dishwasher through a pipe.

[0062] Optionally, the drain pump 60 can be installed between the water softener and the sink assembly 30. Since the side of the sink assembly 30 with the washing pump 40 also has a condenser 22, the condenser 22 requires both a washing water pipe to connect the sink assembly 30 and the washing pump 40, and a refrigerant pipe to connect the compressor 21 and the evaporator. This results in a large amount of structure and piping on the side of the sink assembly 30 with the washing pump 40 and the condenser 22, leaving little remaining space. Therefore, by placing the drain pump 60 between the water softener 50 and the sink assembly 30, only the softened water supply pipe and the drain pipe need to be installed on the side of the sink assembly 30 facing the water softener 50, thus meeting the space requirements.

[0063] like Figure 2 As shown, the height of the water tank is higher than that of the washing pump 40, the condenser 22, and the compressor 21, so as to make full use of the height space between the inner tank and the bottom surface of the receiving cavity. This staggers the height of the water tank from that of other structures, allowing the projection of the water tank on the bottom surface of the receiving cavity to cover at least part of the compressor 21, the condenser 22, and / or the washing pump 40, thus making the structure more compact.

[0064] It should be noted that the spraying mechanism, water distribution valve 31, compressor 21, evaporator, condenser 22, washing pump 40 and water softener 50 are all existing technologies in the field, and will not be described in detail in this embodiment.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A dishwasher, characterized in that, include: Base (10); The inner liner is located above the base (10); A heat pump assembly (20) includes a compressor (21), an evaporator and a condenser (22). The condenser (22) is provided with a first fluid channel and a second fluid channel. The compressor (21), the first fluid channel and the evaporator are connected in sequence to form a circulating medium flow channel. Water tank assembly (30), connected to the inner tank; The washing pump (40), the water tank assembly (30), the washing pump (40) and the second fluid channel are connected in sequence to form a circulating heating channel; The washing pump (40) and the compressor (21) are arranged diagonally on the base (10).

2. The dishwasher according to claim 1, characterized in that, The base (10) is provided with a rectangular cavity, and the washing pump (40) and the compressor (21) are arranged diagonally in the cavity.

3. The dishwasher according to claim 1, characterized in that, One of the compressor (21) and the washing pump (40) is located on the rear side of the sink assembly (30), and the other is arranged in the left-right direction with the sink assembly (30).

4. The dishwasher according to claim 3, characterized in that, The water tank assembly (30) is disposed at one end of the base (10) near the front side; And / or, the sink assembly (30) is located at the center of the base (10) in the left-right direction.

5. The dishwasher according to claim 3, characterized in that, The condenser (22) and the water tank assembly (30) are arranged diagonally on the base (10).

6. The dishwasher according to claim 5, characterized in that, The compressor (21) is located on the rear side of the water tank assembly (30), and the condenser (22) is located on the rear side of the washing pump (40).

7. The dishwasher according to claim 6, characterized in that, The condenser (22) includes a heat exchange tube that is U-shaped and has an opening facing the front of the base (10).

8. The dishwasher according to claim 3, characterized in that, The dishwasher also includes a water softener (50), which is disposed on the base (10). The inlet end of the water softener (50) is connected to a water source, and the outlet end of the water softener (50) is connected to the sink assembly (30).

9. The dishwasher according to claim 8, characterized in that, The water softener (50) is located on one side of the sink assembly (30) in the left-right direction, and the other of the compressor (21) and the washing pump (40) is located on the other side of the sink assembly (30) in the left-right direction.

10. The dishwasher according to claim 8, characterized in that, The dishwasher also includes a drain pump (60) connected to the sink assembly (30) and located between the water softener (50) and the sink assembly (30).

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