Heat pump dish washing machine

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a heat pump dish-washing machine. The heat pump dish washing machine comprises a base and a heat pump mechanism, the heat pump mechanism is used for heating washing water, the heat pump mechanism comprises a compressor assembly, the compressor assembly comprises a compressor support and a compressor arranged on the compressor support, and the compressor support is connected with the base. Compared with the mode that the compressor is directly fixed to the base, the compressor is firstly fixed to the compressor support, then the compressor support is fixed to the base, the contact area of the compressor support and the base is larger, vibration of the compressor can only be transmitted to the base through the compressor support, the influence on the base can be reduced, and therefore the base is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a heat pump 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, which can significantly reduce the energy consumption of dishwashers. The heat pump system includes a compressor, an evaporator, and a condenser, which are connected end-to-end to form a refrigerant circulation path. The refrigerant exchanges heat with the washing water in the condenser to heat the water.

[0003] Heat pump systems require compression for operation. Traditional compressors are typically bolted to a metal base, resulting in significant vibration and noise during operation. Furthermore, as dishwasher designs become increasingly integrated, mainstream technologies generally use plastic bases to directly secure the compressor, which has lower strength and is prone to damage during transportation. Utility Model Content

[0004] The purpose of this invention is to provide a heat pump dishwasher with a compressor that is easy to install, has minimal impact on the strength of the base, and prevents damage to the base during transportation.

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

[0006] A heat pump dishwasher includes:

[0007] Base;

[0008] A heat pump mechanism for heating washing water, the heat pump mechanism including a compressor assembly, the compressor assembly including a compressor bracket and a compressor disposed on the compressor bracket, the compressor bracket being connected to the base.

[0009] As an alternative to the aforementioned heat pump dishwasher, the base forms a mounting groove with a top opening, the compressor bracket is located within the mounting groove, the compressor bracket includes a mounting surface higher than the bottom surface of the mounting groove, and the compressor is disposed on the mounting surface.

[0010] As an alternative to the aforementioned heat pump dishwasher, the base includes a base body and a mounting base. The mounting groove is formed in the base body, the mounting base is disposed in the mounting groove, and the compressor bracket is disposed on the mounting base.

[0011] As an alternative to the aforementioned heat pump dishwasher, the compressor bracket includes a mounting plate and a flow guiding structure. The compressor is connected to the mounting plate, and the flow guiding structure is disposed on the mounting plate to guide fluid flow into the base.

[0012] As an alternative to the aforementioned heat pump dishwasher, the compressor includes a body and at least two mounting feet connected to the body, the mounting feet being connected to the compressor bracket;

[0013] The compressor assembly also includes a shock absorber made of an elastic material, at least a portion of which is clamped between the machine feet and the compressor bracket.

[0014] As an optional solution for the aforementioned heat pump dishwasher, the main body and the compressor bracket are spaced apart.

[0015] And / or, the machine feet are provided with at least three, and the at least three machine feet are evenly spaced along the circumference of the body.

[0016] As an alternative to the aforementioned heat pump dishwasher, the compressor assembly further includes a fixing column and a fixing cap. The bottom end of the fixing column is connected to the compressor bracket, the machine feet are sleeved on the fixing column, and the fixing cap is detachably connected to the top end of the fixing column.

[0017] As an alternative to the aforementioned heat pump dishwasher, the shock-absorbing component is fitted onto the fixed column.

[0018] As an optional solution for the aforementioned heat pump dishwasher, the outer peripheral wall of the shock absorber is provided with an annular groove, the machine feet are sleeved on the outside of the shock absorber and can be inserted into the annular groove, and the fixing cap abuts against the top of the shock absorber.

[0019] Alternatively, the machine foot abuts against the top of the shock absorber, and the fixing cap abuts against the machine foot.

[0020] As an alternative to the aforementioned heat pump dishwasher, the compressor assembly further includes a gasket located between the fixing cap and the shock absorber, or the gasket located between the fixing cap and the machine foot;

[0021] And / or, the fixing post is threaded or snapped into the fixing cap.

[0022] The beneficial effects of this utility model are:

[0023] In the heat pump dishwasher provided by this utility model, the compressor assembly includes a compressor bracket and a compressor mounted on the compressor bracket, with the compressor bracket connected to the base. Compared to directly fixing the compressor to the base, fixing the compressor to the compressor bracket first, and then fixing the compressor bracket to the base, results in a larger contact area between the compressor bracket and the base. This allows compressor vibrations to be transmitted to the base through the compressor bracket, reducing the impact on the base and thus preventing damage to it. Attached Figure Description

[0024] Figure 1 This is a partial structural diagram of the base and compressor assembly provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the mounting base and compressor assembly provided by this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the base provided by this utility model;

[0027] Figure 4 This is a cross-sectional view of the compressor assembly provided by this utility model;

[0028] Figure 5 This is a partial structural schematic diagram of the compressor assembly provided by this utility model.

[0029] In the picture:

[0030] 10. Base; 11. Base body; 12. Mounting seat; 121. Base plate; 122. Rib plate; 123. Connecting column; 20. Compressor assembly; 21. Compressor bracket; 211. Mounting plate; 212. Flow guide structure; 22. Compressor; 221. Body; 222. Foot; 2221. Side plate; 2222. Horizontal plate; 23. Shock absorber; 231. Annular groove; 24. Fixing column; 25. Fixing cap; 26. Gasket. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] like Figure 1 As shown, this embodiment provides a heat pump dishwasher, including a base 10, a housing, a door, an inner tub, a water supply mechanism, and a heat pump assembly. The base 10 is connected to the housing, forming a cavity with a front opening. The door is movably connected to the housing to open or close the cavity. The water supply mechanism, the heat pump assembly, and the inner tub are all disposed within the cavity. The inner tub is fixed to the base 10, and a washing chamber is formed within the inner tub. A loading / unloading port is provided on the front side of the inner tub, through which tableware or cookware to be washed can be placed into the washing chamber. The water supply mechanism communicates with the inner tub and is used to supply washing water to the inner tub. The heat pump assembly is located below the inner tub and is used to heat the washing water in the water supply mechanism. When the dishwasher is working, the washing water is heated by the heat pump assembly and then enters the washing chamber to clean the tableware or cookware.

[0036] The heat pump assembly includes a compressor assembly 20, an evaporator, and a condenser. The evaporator, compressor assembly 20, and condenser are sequentially connected to form a circulating medium channel for the heat exchange medium. The heat exchange medium within this channel exchanges heat with the wash water in the condenser, transferring heat to the wash water and thus heating it. Specifically, the evaporator absorbs heat from the environment to raise the temperature of the refrigerant. The heated refrigerant is then compressed by the compressor assembly 20 to obtain a high-temperature, high-pressure refrigerant. This high-temperature, high-pressure refrigerant enters the condenser and exchanges heat with the wash water, thereby heating the wash water.

[0037] In this embodiment, the water supply mechanism includes a water tank assembly, a water pump, and a spray assembly. The water tank assembly includes a water cup and a water distribution valve. The water cup is located inside the base 10 and below the inner tank. The water cup is connected to a water source and to a washing chamber formed inside the inner tank. The water distribution valve connects the water cup and the spray assembly, and is used to control the flow of washing water in the water cup and direct it into the spray assembly. The condenser is provided with a first fluid channel and a second fluid channel. The first fluid channel is connected to the compressor 22 and the evaporator respectively to form a circulating medium flow channel. One end of the second fluid channel is connected to the water cup via the water pump, and the other end is connected to the water distribution valve to form a circulating heating flow channel for the washing water.

[0038] When the heat pump dishwasher is working, the washing water enters the water cup and is pumped into the second fluid channel by the water pump to exchange heat with the refrigerant and be heated. The heated washing water enters the spray assembly through the water distribution valve to spray the tableware or cookware in the washing chamber to achieve the purpose of cleaning. The washing water after spraying is collected at the bottom of the inner tank and enters the water cup. The above steps are repeated to achieve recycling.

[0039] like Figure 1 As shown, the base 10 forms a mounting slot with an opening at the top, and the heat pump assembly is disposed in the mounting slot so as to utilize the internal space of the base 10 to install the heat pump assembly, thereby reducing the impact of adding the heat pump assembly on the installation space of other components in the dishwasher.

[0040] Since the compressor assembly 20 vibrates during operation, to prevent the compressor assembly 20 from affecting the strength of the base 10, in this embodiment, as follows: Figure 1 and Figure 2 As shown, the compressor assembly 20 includes a compressor bracket 21 and a compressor 22 mounted on the compressor bracket 21. The compressor bracket 21 is connected to the base 10. Compared to directly fixing the compressor 22 to the base 10, fixing the compressor 22 to the compressor bracket 21 first, and then fixing the compressor bracket 21 to the base 10, can reduce the impact on the strength of the base 10. Furthermore, the contact area between the compressor bracket 21 and the base 10 is larger, allowing vibrations from the compressor 22 to be transmitted to the base 10 through the compressor bracket 21, thus reducing the impact on the base 10 and preventing damage to it.

[0041] To facilitate after-sales maintenance of the compressor assembly 20, the compressor bracket 21 and the base 10 are detachably connected for easy disassembly. In this embodiment, the compressor bracket 21 and the base 10 are fixedly connected by screws, which facilitates easy assembly and disassembly and provides a secure fixation.

[0042] To prevent water from accumulating and coming into contact with the compressor 22 during the operation of the heat pump components or when the dishwasher leaks, thereby affecting the normal operation and safety of the compressor 22, in some embodiments, the compressor bracket 21 includes a mounting surface for supporting and fixing the compressor 22. The mounting surface is higher than the bottom surface of the mounting groove to raise the position of the compressor 22, thereby preventing water from coming into contact with the compressor 22 and thus avoiding safety accidents caused by electrical abnormalities.

[0043] Optionally, the mounting surface is the top surface of the compressor bracket 21, which protrudes beyond the bottom surface of the mounting groove, thereby raising the height of the compressor 22. When the heat pump dishwasher experiences a water leakage malfunction, water will accumulate along the bottom surface of the mounting groove; when a certain water level is reached, the heat pump dishwasher will trigger an overflow alarm, and the drain pump connected to the washing chamber will start, emptying the water from the inner tank. This design prevents leaked water from submerging the compressor 22 and causing electrical malfunctions.

[0044] In some embodiments, the base 10 includes a base body 11 and a mounting base 12. A mounting groove is formed in the base body 11, and the mounting base 12 is located in the mounting groove. The compressor bracket 21 is disposed on the mounting base 12. By providing the mounting base 12, on the one hand, the thickness of the mating part between the base 10 and the compressor bracket 21 is increased, thereby improving the strength; on the other hand, the mounting base 12 can further raise the compressor 22, avoiding electrical abnormalities.

[0045] To prevent water from remaining on the compressor bracket 21, in some embodiments, such as Figure 2 As shown, the compressor bracket 21 includes a mounting plate 211 and a flow guiding structure 212 disposed on the mounting plate 211. The compressor 22 is connected to the mounting plate 211. The flow guiding structure 212 can guide the fluid on the mounting plate 211 to flow into the base 10 to avoid water from staying on the compressor bracket 21 and further avoid water from contacting the compressor 22.

[0046] In some embodiments, the flow guiding structure 212 is a flow guide plate, which is substantially perpendicular to the mounting plate 211. The flow guide plate can guide water to flow along its extension direction, thereby guiding the water to the edge of the mounting plate 211 to facilitate water discharge.

[0047] Optionally, at least one edge of the mounting plate 211 is connected to a guide plate, and the guide plates on adjacent sides can be connected or spaced apart to ensure that all guide plates do not form a closed structure, so as to ensure that the water on the mounting plate 211 can flow down from the mounting plate 211.

[0048] In some other embodiments, the flow guiding structure 212 may also be at least one of a flow guiding groove and a flow guiding slope to improve the flow guiding effect.

[0049] like Figure 3As shown, the mounting base 12 includes a base plate 121 and a plurality of stiffening plates 122 disposed on the base plate 121. The stiffening plates 122 are arranged horizontally and vertically on the base plate 121, which can reduce the weight of the mounting base 12 while improving its strength, thus helping to reduce costs.

[0050] To improve the fixing effect between the mounting base 12 and the compressor bracket 21, the mounting base 12 also includes a connecting post 123. The connecting post 123 protrudes from the base plate 121 and has a through mounting hole. Fasteners pass through the mounting hole and connect to the base body 11. By setting the connecting post 123, the strength of the mounting base 12 can be increased to better fix the compressor bracket 21, and the mating area between the fasteners and the mounting base 12 can be increased to improve the fixing effect.

[0051] In this embodiment, the mounting base 12 includes four connecting posts 123, which are respectively arranged at the top corner of the mounting base 12 to improve the fixing effect.

[0052] In other embodiments, the number and location of the connecting posts 123 can be set according to actual needs. The number of connecting posts 123 can be two, three, or five or more.

[0053] In other embodiments, the compressor bracket 21 can also be fixed to the base 10 in other ways, such as by snap-fit ​​or magnetic adsorption.

[0054] In this embodiment, the compressor bracket 21 can be made of metal to ensure sufficient strength to support the compressor 22. In other embodiments, the compressor bracket 21 can also be made of plastic or other materials.

[0055] like Figure 4 As shown, the compressor 22 includes a body 221 and at least two feet 222 connected to the body 221. The feet 222 are connected to the compressor bracket 21 to reduce the contact area between the compressor 22 and the compressor bracket 21, thereby reducing the vibration transmitted to the compressor bracket 21.

[0056] To reduce the impact of vibrations generated by the compressor 22 during operation on the base 10, the compressor assembly 20 also includes a shock absorber 23. The shock absorber 23 is made of an elastic material and is located between the compressor 22 and the compressor bracket 21 to absorb the vibrations generated by the compressor 22 during operation, reduce the vibrations transmitted to the base 10 through the compressor bracket 21, thereby avoiding the impact of vibrations on the strength of the base 10 and reducing noise.

[0057] Specifically, the shock absorber 23 is clamped between the machine foot 222 and the compressor bracket 21. When the compressor 22 is working, the vibration generated is first transmitted to the shock absorber 23. The shock absorber 23 absorbs part of the vibration by utilizing its deformable property, thereby reducing the vibration transmitted to the compressor bracket 21 and achieving the functions of protecting the base 10 and reducing noise.

[0058] To improve the vibration damping effect, the compressor body 221 and the compressor bracket 21 are spaced apart. Through the cooperation of the machine feet 222 and the shock absorber 23, the compressor body 221 is suspended above the compressor bracket 21, so that the vibration generated by the compressor 22 can only be transmitted to the compressor bracket 21 through the shock absorber 23, so as to make full use of the shock absorber 23 to absorb the vibration.

[0059] In this embodiment, the compressor 22 includes three feet 222, which are evenly spaced along the circumference of the body 221. Each foot 222 is equipped with a shock absorber 23. The three feet 222 provide better support for the body 221, making it more stable. In other embodiments, the number of feet 222 can be two, four, five, or more.

[0060] like Figure 4 and Figure 5 As shown, the compressor assembly 20 also includes a fixing post 24 and a fixing cap 25. The bottom end of the fixing post 24 is connected to the compressor bracket 21, and the compressor foot 222 is sleeved on the fixing post 24. The fixing cap 25 is detachably connected to the top end of the fixing post 24. Through the cooperation of the fixing cap 25 and the fixing post 24, the compressor foot 222 can be constrained between the fixing cap 25 and the compressor bracket 21, thereby fixing the compressor 222 to the compressor bracket 21.

[0061] Optionally, the damping component 23 is sleeved outside the fixed column 24 so that the damping component 23 is positioned and guided by the fixed column 24, so as to prevent the damping component 23 from bending during compression and improve the damping effect.

[0062] To improve vibration damping, the outer wall of the damping component 23 is provided with an annular groove 231. The foot 222 is fitted onto the damping component 23 and can be inserted into the annular groove 231. The fixing cap 25 abuts against the top of the damping component 23. There are damping components 23 below and above the foot 222, so that when the compressor 22 is working, the vibration generated by the compressor 22, whether transmitted upward or downward by the foot 222, first passes through the damping component 23, avoiding direct transmission of vibration to the compressor bracket 21 or the fixing cap 25, thereby improving the vibration damping effect.

[0063] In this embodiment, the machine foot 222 includes a side plate 2221 and a horizontal plate 2222. The side plate 2221 is connected to the horizontal plate 2222 and is arranged approximately vertically. The side plate 2221 can be a flat plate or an arc-shaped plate. The side plate 2221 is connected to the body 221. The horizontal plate 2222 has a through hole, and the shock absorber 23 passes through the through hole. The edge of the through hole extends into the annular groove 231 of the shock absorber 23. Through the cooperation of the horizontal plate 2222 and the annular groove 231, the shock absorption effect can be improved, and the relative position of the machine foot 222 and the shock absorber 23 can be fixed, preventing the machine foot 222 from detaching from the shock absorber 23 during the operation of the compressor 22, thereby improving structural stability.

[0064] Optionally, the top of the damper 23 forms a transition section that extends to the annular groove 231. The outer diameter of the transition section gradually increases from top to bottom to facilitate the damper 23 being inserted into the through hole of the horizontal plate 2222.

[0065] In this embodiment, the fixing post 24 can be riveted to the compressor bracket 21 to improve the fixing effect and ensure the firmness of the connection. In other embodiments, the fixing post 24 can also be integrally formed with the compressor bracket 21, or fixed to the compressor bracket 21 by welding, snap-fitting, threaded connection or other methods.

[0066] To facilitate the engagement of the fixing post 24 and the fixing cap 25, the fixing post 24 and the fixing cap 25 can be connected by threads. That is, the fixing post 24 is provided with external threads, and the fixing cap 25 is provided with internal threads. The connection between the fixing post 24 and the fixing cap 25 is achieved through the engagement of the internal and external threads.

[0067] Specifically, the fixing post 24 is a rivet screw. The rivet screw passes through the bottom of the compressor bracket 21 and is fixed to the compressor bracket 21, so that the stud end of the rivet screw is set upward to facilitate its engagement with the fixing cap 25.

[0068] In other embodiments, the fixing cap 25 and the fixing post 24 can also be fixed by snap-fit.

[0069] Optionally, the compressor assembly 20 also includes a gasket 26 located between the retaining cap 25 and the shock absorber 23, with the retaining cap 25 abutting against the shock absorber 23 via the gasket 26. By providing the gasket 26, vibration and impact forces can be dispersed and absorbed, allowing the compressor 22 to operate more smoothly and extending its service life.

[0070] In other embodiments, the shock absorber 23 can be located entirely between the foot 222 and the compressor bracket 21. That is, the top end of the shock absorber 23 abuts against the foot 222, the bottom end of the shock absorber 23 abuts against the compressor bracket 21, and the fixing cap 25 is located above the foot 222 and can abut downwards against the foot 222. Correspondingly, the gasket 26 is located between the fixing cap 25 and the foot 222, and the fixing cap 25 presses against the foot 222 through the gasket 26.

[0071] 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 heat pump dishwasher, characterized in that, include: Base (10); A heat pump mechanism for heating washing water, the heat pump mechanism includes a compressor assembly (20), the compressor assembly (20) includes a compressor bracket (21) and a compressor (22) disposed on the compressor bracket (21), the compressor bracket (21) being connected to the base (10).

2. The heat pump dishwasher according to claim 1, characterized in that, The base (10) forms a mounting groove with a top opening, the compressor bracket (21) is located in the mounting groove, the compressor bracket (21) includes a mounting surface higher than the bottom surface of the mounting groove, and the compressor (22) is disposed on the mounting surface.

3. The heat pump dishwasher according to claim 2, characterized in that, The base (10) includes a base body (11) and a mounting seat (12). The mounting groove is formed in the base body (11), the mounting seat (12) is disposed in the mounting groove, and the compressor bracket (21) is disposed on the mounting seat (12).

4. The heat pump dishwasher according to claim 1, characterized in that, The compressor bracket (21) includes a mounting plate (211) and a flow guiding structure (212). The compressor (22) is connected to the mounting plate (211). The flow guiding structure (212) is disposed on the mounting plate (211) and is used to guide fluid to flow into the base (10).

5. The heat pump dishwasher according to any one of claims 1-4, characterized in that, The compressor (22) includes a body (221) and at least two feet (222) connected to the body (221), the feet (222) being connected to the compressor bracket (21); The compressor assembly (20) also includes a shock absorber (23) made of an elastic material, at least a portion of which is held between the foot (222) and the compressor bracket (21).

6. The heat pump dishwasher according to claim 5, characterized in that, The main body (221) and the compressor bracket (21) are spaced apart; And / or, the foot (222) is provided with at least three, and the at least three foot (222) are evenly spaced along the circumference of the body (221).

7. The heat pump dishwasher according to claim 5, characterized in that, The compressor assembly (20) further includes a fixing column (24) and a fixing cap (25). The bottom end of the fixing column (24) is connected to the compressor bracket (21), the machine foot (222) is sleeved on the fixing column (24), and the fixing cap (25) is detachably connected to the top end of the fixing column (24).

8. The heat pump dishwasher according to claim 7, characterized in that, The shock absorber (23) is sleeved on the fixed column (24).

9. The heat pump dishwasher according to claim 8, characterized in that, The outer peripheral wall of the shock absorber (23) is provided with an annular groove (231), the machine foot (222) is sleeved on the outside of the shock absorber (23) and can be inserted into the annular groove (231), and the fixing cap (25) abuts against the top of the shock absorber (23); Alternatively, the foot (222) abuts against the top of the shock absorber (23), and the fixing cap (25) abuts against the foot (222).

10. The heat pump dishwasher according to claim 7, characterized in that, The compressor assembly (20) further includes a gasket (26) located between the fixing cap (25) and the shock absorber (23), or the gasket (26) located between the fixing cap (25) and the machine foot (222); And / or, the fixing post (24) is threaded or snapped into the fixing cap (25).

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