Heat pump dishwasher
By using a fan in a heat pump dishwasher to extract high-temperature and high-humidity steam and supply heat to the evaporator, the problems of low heat exchange efficiency and inability to discharge steam are solved, and more efficient heat exchange and better drying effect are achieved, which improves the User experience.
Patent Information
- Application Number
- CN202420534909.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The existing heat pump dishwasher has low heat exchange efficiency and the steam cannot be discharged effectively, resulting in water marks or odors on the surface of the tableware.
A heat pump dishwasher is designed, using a fan to pump high-temperature and high-humidity steam in the inner liner to an evaporator of the heat exchange assembly, and heat supply is used by the evaporator, and steam is extracted after the washing is completed to improve the drying of the inner liner.
It improves the working efficiency of the evaporator, improves the drying effect of the inner liner, avoids water marks and odors on the surface of the tableware, and improves the user experience.
Smart Images
Figure CN222466835U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical appliances, in particular to a heat pump dishwasher. Background Art
[0002] As living standards improve, more and more users choose to use dishwashers. In order to reduce the energy efficiency of dishwashers, dishwashers with heat pump systems have appeared in the prior art. Such products generally heat the evaporator through a water tank. The water in the water tank is usually tap water. The low water temperature leads to low efficiency of the evaporator.
[0003] In addition, to improve hygiene, dishwashers generally drain washing water from the bottom after washing to keep dishes dry. However, after the dishwasher is finished, high-temperature and high-humidity steam permeates the entire inner tank and cannot be discharged smoothly. When the temperature of the inner tank drops, the steam turns into water and adheres to the surface of the dishes, causing water marks or odors, affecting the user experience.
[0004] Therefore, it is urgent to study a heat pump dishwasher to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a heat pump dishwasher to solve the problems in the prior art of low heat exchange efficiency and inability to discharge steam, resulting in water marks or odor on the surface of tableware.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A heat pump dishwasher, comprising:
[0008] An inner container, wherein the inner container has a containing cavity and a steam outlet hole communicating with the containing cavity;
[0009] A heat exchange component, the heat exchange component comprising an evaporator, the evaporator being arranged outside the inner tank and being used to cooperate with the condenser to heat the washing water passing into the accommodating cavity;
[0010] A fan, wherein an air inlet of the fan is connected to the steam outlet, and an air outlet of the fan faces the evaporator.
[0011] In some embodiments, the heat exchange assembly includes a box body, the box body is arranged on the outside of the inner tank, and the evaporator is arranged inside the box cavity of the box body.
[0012] In some embodiments, a first channel connected to the box cavity is provided at the bottom of the box body, the inner tank has a second channel connected to the accommodating cavity, and the box cavity is connected to the accommodating cavity through the first channel and the second channel.
[0013] In some embodiments, the box body is arranged on the peripheral side of the inner container.
[0014] In some embodiments, the steam outlet is located at the top of the inner container.
[0015] In some embodiments, the evaporator is arranged on the peripheral side of the inner tank, and the fan is arranged on the top of the inner tank. The corner between the top of the inner tank and the side wall of the inner tank on which the evaporator is installed is chamfered and provided with a circulation channel. One end of the circulation channel is connected to the air outlet of the fan, and the other end faces the evaporator.
[0016] In some embodiments, the corners of the circulation channel are prepared according to the corners of the liner.
[0017] In some embodiments, the heat exchange assembly includes a box body, and the evaporator is arranged inside the inner cavity of the box body; the wind cover is arranged in the groove of the base of the box body to enclose the circulation channel, and the circulation channel is connected between the air outlet of the fan and the box inlet of the box body.
[0018] In some embodiments, the evaporator includes a heat dissipation pipe, and the heat dissipation pipe is arranged in a serpentine shape in the inner cavity of the box; or
[0019] The evaporator comprises fins, and the fins are provided with a plurality of fins, and the plurality of fins are arranged at intervals in the inner cavity of the box.
[0020] In some embodiments, there are a plurality of fans and a plurality of steam outlets, and the fans are spaced apart in the inner tank. The air inlet of each fan is connected to the corresponding steam outlet, and the air outlet of each fan faces the evaporator.
[0021] The beneficial effects of the utility model are:
[0022] The utility model provides a heat pump dishwasher, which draws the high-temperature and high-humidity steam in the inner tank to the evaporator of the heat exchange component through a fan, thereby supplying heat to the evaporator. Compared with heating by tap water with a lower temperature, the working efficiency of the evaporator is higher; in addition, after washing is completed, the high-temperature and high-humidity steam is drawn out, which greatly improves the drying effect of the inner tank, thereby avoiding water marks on the surface of the tableware, and avoiding odors caused by moisture, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of a heat pump dishwasher from a first perspective in an embodiment of the utility model;
[0024] Figure 2 It is a structural schematic diagram of a heat pump dishwasher from a second viewing angle in an embodiment of the utility model;
[0025] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0026] Figure 4 It is a structural schematic diagram of a heat pump dishwasher from a third viewing angle in an embodiment of the utility model;
[0027] Figure 5 It is a structural schematic diagram of a heat pump dishwasher from a fourth viewing angle in an embodiment of the utility model;
[0028] Figure 6 This is a schematic diagram of the internal structure of the box in the embodiment of the utility model;
[0029] Figure 7 It is a partial structural schematic diagram of the heat pump dishwasher in the fifth viewing angle in the embodiment of the utility model.
[0030] In the figure:
[0031] 100, inner liner; 110, containing cavity; 120, steam outlet;
[0032] 200, heat exchange component; 210, box body; 211, first channel; 212, convex ridge; 213, wind cover; 220, evaporator;
[0033] 300. Fan. DETAILED DESCRIPTION
[0034] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0038] like Figures 1 to 7 As shown, this embodiment provides a heat pump dishwasher, which can be used in a dishwasher. The heat pump dishwasher includes an inner tank 100, a heat exchange component 200 and a fan 300, wherein the inner tank 100 has a accommodating cavity 110 and a steam outlet 120 connected to the accommodating cavity 110; the heat exchange component 200 includes an evaporator 220, which is arranged on the outer side of the inner tank 100 and is used to cooperate with the condenser to heat the washing water entering the accommodating cavity 110; the air inlet of the fan 300 is connected to the steam outlet 120, and the air outlet of the fan 300 faces the evaporator 220.
[0039] In the above configuration, the heat pump dishwasher draws the high-temperature and high-humidity steam in the inner tank 100 to the evaporator 220 of the heat exchange component 200 through the fan 300, thereby supplying heat to the evaporator 220. Compared with heating by tap water with a lower temperature, the evaporator 220 has a higher working efficiency. In addition, after washing is completed, the high-temperature and high-humidity steam is drawn out, which greatly improves the drying effect of the inner tank 100, thereby avoiding water marks on the surface of the tableware, and avoiding odors caused by moisture, thereby improving the user experience.
[0040] It should be noted that a compressor is provided between the evaporator 220 and the condenser in the heat exchange assembly 200. The compressor liquefies the vaporized refrigerant and transfers it to the condenser. The condenser dissipates the heat of the refrigerant and heats the washing water. A capillary is connected between the condenser and the evaporator 220. The capillary is used to transfer the refrigerant in the condenser to the evaporator 220. The specific heat exchange principle is well known to those skilled in the art and is not the focus of this application, so it will not be repeated here.
[0041] In some embodiments, the heat pump dishwasher heat exchange assembly 200 further includes a box 210, which is arranged outside the inner tank 100, and the evaporator 220 is arranged inside the inner chamber of the box 210. The air inlet of the fan 300 is connected to the steam outlet 120, and the air outlet of the fan 300 is connected to the box inlet of the box 210. The arrangement of the box 210 allows the steam to be gathered in a certain space, so that the evaporator 220 absorbs heat more thoroughly. After providing heat to the evaporator 220, the high-temperature and high-humidity steam becomes low-temperature condensed water. In order to improve the recycling rate of water and reduce the overall water consumption, in this embodiment, the bottom of the box 210 is provided with a first channel 211 connected to the inner chamber of the box, and the inner tank 100 has a second channel connected to the accommodating chamber 110, and the inner chamber of the box is connected to the accommodating chamber 110 through the first channel 211 and the second channel. The above arrangement allows the condensed water in the box 210 to automatically flow back to the inner tank 100, so that it can be recycled. Specifically, the washing water required by the spray arm of the heat pump dishwasher comes from the bottom of the inner tank 100. The washing water sprayed from the spray arm falls on the dishes and eventually flows to the bottom of the inner tank 100 to form a circulation of the washing water.
[0042] In order to reduce the height of the heat pump dishwasher, in some embodiments, the cabinet 210 is disposed on the peripheral side of the inner tank 100 .
[0043] The installation position of the cabinet 210 also needs to be combined with the specific structure of the cabinet 210. In some embodiments, the cabinet 210 is a flat structure, and the largest surface of the cabinet 210 fits the inner tank 100. The above arrangement helps to reduce the height of the entire heat pump dishwasher; under this premise, the width of the heat pump dishwasher can also be reduced as much as possible.
[0044] To facilitate the collection of high-temperature and high-humidity steam, in some embodiments, the steam outlet 120 is located at the top of the inner liner 100. The above arrangement can extract the steam without affecting the side wall support of the inner liner 100, which helps to ensure the support strength of the inner liner 100.
[0045] Considering the structure of the fan 300, in order to improve the convenience of the connection between the fan 300 and the steam outlet 120, in some embodiments, the evaporator 220 is arranged on the peripheral side of the inner tank 100, and the fan 300 is arranged on the top of the inner tank 100, and is located at the corner between the side wall of the inner tank 100 where the evaporator 220 is installed and the top of the inner tank 100. The above arrangement makes it easy to install the fan 300, and can also effectively shorten the path of steam circulation, thereby reducing the heat loss of steam during the flow process, which is conducive to ensuring the temperature of the steam flowing to the box 210, and then providing as much heat as possible to the evaporator 220, thereby improving the working efficiency of the heat pump dishwasher.
[0046] Specifically, considering the structure of the existing dishwasher, in order to reduce the scope of modification, the box 210 is arranged on the right side of the inner tank 100. The fan 300 is arranged on the top of the inner tank 100, and is located at the corner between the side wall of the inner tank 100 installed by the box 210 and the top of the inner tank 100. The above arrangement is conducive to ensuring that as much heat as possible flows into the box 210, thereby improving the working efficiency of the heat pump dishwasher.
[0047] The evaporator 220 is arranged on the peripheral side of the inner tank 100, and the fan 300 is arranged on the top of the inner tank 100. The corner between the top of the inner tank 100 and the side wall of the inner tank 100 where the evaporator 220 is installed is rounded and provided with a circulation channel, one end of the circulation channel is connected to the air outlet of the fan 300, and the other end faces the evaporator 220. With the arrangement of the above structure, the large space at the corner of the inner tank 100 is effectively utilized, and the cross-sectional area of the circulation channel can be maximized without increasing the size of the whole machine, thereby maximizing the amount of air blown into the box body 210.
[0048] Furthermore, the corners of the circulation channel are prepared according to the corners of the liner 100 .
[0049] The heat exchange assembly 200 includes a box body 210, and the evaporator 220 is arranged inside the box cavity of the box body 210; the wind cover 213 is set at the groove of the base of the box body 210 to enclose a circulation channel, and the circulation channel is connected between the air outlet of the fan 300 and the box inlet of the box body 210. The above arrangement allows air to be gathered in the box body 210, so that heat can be more fully transferred to the evaporator 220, thereby improving the heat utilization rate. The base is provided with convex ribs 212 arranged at intervals, and a groove is formed between two convex ribs 212. The arrangement of the convex ribs 212 also helps to increase the structural strength of the base.
[0050] Regarding the structure of the evaporator 220, in one implementation of this embodiment, the evaporator 220 includes a heat pipe. Specifically, the heat pipe is arranged in a serpentine shape in the inner cavity of the box. The above arrangement can effectively increase the contact area between the evaporator 220 and the steam in the inner cavity of the box with limited space, thereby improving the heat exchange efficiency of the evaporator 220.
[0051] In another implementation of this embodiment, the evaporator 220 includes fins. Specifically, the fins are provided in plurality, and the plurality of fins are arranged in the inner cavity of the box at intervals. The above arrangement can effectively increase the surface area of the evaporator 220 in the inner cavity of the box with limited space, so that the evaporator 220 can be in contact with more steam, thereby improving the heat exchange efficiency of the evaporator 220.
[0052] To further improve the heat exchange efficiency and the discharge of steam, in some embodiments, a plurality of fans 300, steam outlet holes 120 and box inlets are provided, and a plurality of fans 300 are arranged at intervals in the inner tank 100, and the air inlet of each fan 300 is respectively connected to the corresponding steam outlet hole 120, and the air outlet of each fan 300 is respectively connected to the corresponding box inlet. When in use, two fans 300 can work simultaneously or alternately.
[0053] The heat pump dishwasher also includes a spray arm, which is used to spray water onto the dishes in the inner tank 100. A drain port is provided at the bottom of the inner tank 100, which is connected to a drain pipe. The other end of the drain pipe is connected to a downpipe. A valve body is installed on the drain pipe to open or close the drain pipe. When in use, during normal washing, the valve body is closed, the washing water in the inner tank 100 is pumped to the spray arm by a water pump, the washing water sprayed by the spray arm flows back to the inner tank 100 for circulation, the steam in the inner tank 100 is pumped to the box 210 for heat exchange, and the steam after heat exchange becomes condensed water and flows into the inner tank 100 for circulation. After washing, the valve body is opened, the steam is pumped to the box 210, and condensed water is formed after heat exchange, the condensed water flows into the inner tank 100, and the water in the inner tank 100 is discharged.
[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A heat pump dishwasher, characterized in that: include: An inner container (100), the inner container (100) having a containing cavity (110) and a steam outlet hole (120) communicating with the containing cavity (110); A heat exchange component (200), the heat exchange component (200) comprising an evaporator (220), the evaporator (220) being arranged outside the inner tank (100) and being used to cooperate with a condenser to heat washing water passing into the accommodating chamber (110); A fan (300), wherein an air inlet of the fan (300) is connected to the steam outlet (120), and an air outlet of the fan (300) faces the evaporator (220).
2. The heat pump dishwasher according to claim 1, characterized in that: The heat exchange assembly (200) comprises a box body (210), wherein the box body (210) is arranged outside the inner tank (100), and the evaporator (220) is arranged inside the box cavity of the box body (210).
3. The heat pump dishwasher according to claim 2, characterized in that: The bottom of the box body (210) is provided with a first channel (211) connected to the box inner cavity, the inner container (100) has a second channel connected to the accommodating cavity (110), and the box inner cavity is connected to the accommodating cavity (110) via the first channel (211) and the second channel.
4. The heat pump dishwasher according to claim 2, characterized in that: The box body (210) is arranged on the peripheral side of the inner container (100).
5. The heat pump dishwasher according to claim 1, characterized in that: The steam outlet hole (120) is located at the top of the inner container (100).
6. The heat pump dishwasher according to claim 5, characterized in that: The evaporator (220) is arranged on the peripheral side of the inner tank (100), and the fan (300) is arranged on the top of the inner tank (100); the corner between the top of the inner tank (100) and the side wall of the inner tank (100) on which the evaporator (220) is installed is rounded and provided with a circulation channel; one end of the circulation channel is connected to the air outlet of the fan (300), and the other end faces the evaporator (220).
7. The heat pump dishwasher according to claim 6, characterized in that: The corner of the circulation channel is prepared according to the corner of the inner container (100).
8. The heat pump dishwasher according to claim 6, characterized in that: The heat exchange component (200) comprises a box body (210), and the evaporator (220) is arranged inside the box cavity of the box body (210); an air cover (213) is arranged in a groove of the base of the box body (210) to enclose the circulation channel, and the circulation channel is connected between the air outlet of the fan (300) and the box inlet of the box body (210).
9. The heat pump dishwasher according to claim 2, characterized in that: The evaporator (220) comprises a heat dissipation pipe, and the heat dissipation pipe is arranged in a serpentine shape in the inner cavity of the box; or The evaporator (220) comprises fins, and a plurality of the fins are provided. The plurality of the fins are arranged at intervals in the inner cavity of the box.
10. The heat pump dishwasher according to any one of claims 1 to 9, characterized in that: A plurality of the fans (300) and the steam outlet holes (120) are provided, and the fans (300) are arranged at intervals in the inner tank (100). The air inlet of each fan (300) is respectively connected to the corresponding steam outlet hole (120), and the air outlet of each fan (300) faces the evaporator (220).