EP4691336A1

EP4691336A1 - Heat pump dishwasher having lower trim

Info

Publication number: EP4691336A1
Application number: EP23931720.9A
Authority: EP
Inventors: Huacheng SONG; Lin Yang; Mingyan SHAO; Ke Wang; Xiangyu DONG
Original assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Priority date: 2023-04-06
Filing date: 2023-09-08
Publication date: 2026-02-11
Also published as: CN118806188A; AU2023439246A1; WO2024207672A1

Abstract

A heat-pump dishwasher (1) with a lower trim (11) is provided, wherein the lower trim (11) is arranged at a lower front portion of the heat-pump dishwasher (1) and comprises a first air-guiding structure (111) arranged vertically and a second air-guiding structure (112) arranged horizontally. The first air-guiding structure (111) divides an air inlet of the heat-pump dishwasher (1) into a first air vent (12) and a second air vent (15). Air can be blown in from the first air vent (12), pass through one side of the second air-guiding structure (112), and then be blown into the interior of the heat-pump dishwasher (1). Then, the air can pass through the other side of the second air-guiding structure (112) and be blown out from the second air vent (15) along a direction opposite to a blowing-in direction of the air. As a result, it realizes air circulation of the heat-pump dishwasher within an cabinet, ensuring the heat exchange efficiency of the heat pump.

Description

This patent application claims priority to Chinese patent application CN202310360748.1 filed on April 6, 2023 , and entitled "Heat-pump dishwasher", the entire disclosure of which is incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to the technical field of washing apparatus and specifically provides a heat-pump dishwasher with a lower trim.

BACKGROUND OF THE INVENTION

First of all, existing heat-pump dishwashers are introduced. For the existing heat pump dishwashers that utilize air energy, users usually embed them into cabinets to save kitchen space. However, since the width and height of the cabinets are basically the same as the dishwashers, the exhaust ports of the dishwashers embedded in the cabinets are too close to inner walls of the cabinets, which causes the air around the dishwasher not to circulate normally, affecting the heat exchange efficiency of the heat pump.
Accordingly, there is a need in the art for a new heat-pump dishwasher to solve the above problem.

SUMMARY OF THE INVENTION

The present invention aims to solve the above technical problem in the prior art, i.e., when the existing heat-pump dishwasher is embedded into the cabinet, the distance between the exhaust port and the cabinet is too close, resulting in the inability of the air around the dishwasher to circulate and thus affecting the efficiency of the heat pump.
In the first aspect, the present invention provides a heat-pump dishwasher with a lower trim, wherein the lower trim is arranged at a lower front portion of the heat-pump dishwasher and comprises a first air-guiding structure arranged vertically and a second air-guiding structure arranged horizontally, and the first air-guiding structure and the second air-guiding structure are fixedly connected or made into one piece. The first air-guiding structure divides an air inlet of the heat-pump dishwasher into a first air vent and a second air vent. Air can be blown in from the first air vent, pass through one side of the second air-guiding structure and then enter the interior of the heat-pump dishwasher,
and then pass through the other side of the second air-guiding and be blown out from the second air vent in a direction opposite to a blowing-in direction of the air.
In a specific embodiment of the heat-pump dishwasher with a lower trim the first air vent is positioned above the second air vent, the first air vent is adjacent to a top surface of the second air-guiding structure to allow air to be blown in along the top surface of the second air-guiding structure, and the second air vent is adjacent to a bottom surface of the second air-guiding structure to allow air to be blown out along the bottom surface of the second air-guiding structure.
In a specific embodiment of the heat-pump dishwasher with a lower trim, the heat-pump dishwasher further comprises an inner tub, a base and a housing. The inner tub is arranged above the base, the second air-guiding structure is fixedly connected to a front sidewall of the base, the second air-guiding structure is provided with a first ventilation hole, and a second ventilation hole is provided on the front sidewall of the base. The air can enter the interior of the base through the first ventilation hole and the second ventilation hole. A first passage is formed between the base and a bottom surface of the inner tub, a bottom surface of the housing, a rear side surface of the housing, and left and right side surfaces of the housing. A second passage is formed between the bottom surface of the housing, a bottom surface of the first air-guiding structure, the bottom surface of the second air-guiding structure, and a bottom surface of the base. The second passage is in communication with the first passage so that the air entering the interior of the base can sequentially pass through the first passage and the second passage and be blown out from the second air vent.
In a specific embodiment of the heat-pump dishwasher with a lower trim, the second air-guiding structure comprises a curved section and a straight section. The second air-guiding structure is connected to the front sidewall of the base at the straight section and to the first air-guiding structure at the curved section, and the first ventilation hole can be provided on the straight section.
In a specific embodiment of the heat-pump dishwasher with a lower trim,the curved section has a downwardly recessed shape.
In a specific embodiment of the heat-pump dishwasher with a lower trim, the heat-pump dishwasher further comprises a fan provided on the base so that air enters through the first air vent and exits through the second air vent.
In a specific embodiment of the heat-pump dishwasher with a lower trim, the heat-pump dishwasher further comprises an evaporator, a sump, and an inner tub. The inner tub is disposed above the base, the sump is disposed on the inner tub, the evaporator is disposed on the base, and the fan is located between the sump and the evaporator.
In a specific embodiment of the heat-pump dishwasher with a lower trim, the lower trim further comprises a support structure provided with a first snap-fit protrusion and a second snap-fit protrusion. Accordingly, a snap-fit hole is provided on the second air-guiding structure, and a first snap-fit groove is provided on the first air-guiding structure. The first snap-fit protrusion can be snapped in the first snap-fit groove, and the second snap-fit protrusion can be snapped in the snap-fit hole, so as to achieve a connection between the support structure and the first air-guiding structure and between the support structure and the second air-guiding structure.
In a specific embodiment of the heat-pump dishwasher with a lower trim, the support structure further comprises a support leg connected t o the support structure in a screwed connection form so that the support structure can be supported by the support leg.
In a specific embodiment of the heat-pump dishwasher with a lower trim, the front sidewall of the base is provided with a guiding slot, and correspondingly the second air-guiding structure is provided with a guiding protrusion which can be inserted into the guiding slot; and/or, the front sidewall of the base is provided with a second snap-fit groove, and correspondingly the second air-guiding structure is provided with an inverted hook which can be snapped in the second snap-fit groove; and/or, a third snap-fit protrusion is provided on the support structure, and correspondingly the second air-guiding structure is provided with a snap-fit platform on which the third snap-fit protrusion can be snapped.
In the case of adopting the above technical solution, the present invention can realize air circulation of the heat-pump dishwasher within a kitchen cabinet, thereby ensuring the heat exchange efficiency of the heat pump. Specifically, the present invention can divide an air inlet of the heat-pump dishwasher into a first air vent and a second air vent by configuring the lower trim at the lower front side of the dishwasher in a form that comprises a vertically arranged first air-guiding structure and a horizontally arranged second air-guiding structure. When environmental air enters the heat-pump dishwasher, the air is blown in from the first air vent, passes through the second air-guiding structure, and then enters the interior of the heat-pump dishwasher. After the heat exchange is completed inside the heat-pump dishwasher, the air flows through the other side of the second air-guiding structure and is blown out from the second air vent. In this way, an air circulation mode is achieved in which both the air inlet side and the air outlet side are located on the same side of the dishwasher, thereby avoiding the arrangement of the air outlet inside the cabinet. As a result, the problem in existing built-in heat-pump dishwashers, in which the exhaust port is too close to the cabinet and the surrounding air cannot circulate, thereby reducing the heat exchange efficiency of the heat pump, can be solved.

BRIEF DESCRIPTION OF THE DRAWINGS

Preferred embodiments of the present invention will be described below in connection with the accompanying drawings, in which:

FIG.1 is an axial view of the base and the lower trim of the heat-pump dishwasher of the present invention;
FIG.2 is a right view of the base and the lower trim of the heat-pump dishwasher of the present invention;
FIG.3 is a structural schematic view of a second ventilation hole on the inner side of the base;
FIG.4 is a cross-sectional view of the connection between the first air-guiding structure and the supporting structure, wherein FIG.4 corresponds to section C-C in FIG.1;
FIG.5 is a schematic structural view of the connection between the second air-guiding structure and the base;
FIG.6 is a partially enlarged view of the connection between the second air-guiding structure and the base, wherein FIG.6 corresponds to section A in FIG.5;
FIG.7 is a bottom view of the base and the lower trim;
FIG.8 is a partially enlarged view of the connection between the second air-guiding structure and the support structure, wherein FIG.8 corresponds to section B in FIG.7;
FIG. 9 is a schematic view of the location of the evaporator, the sump, and the fan of the heat-pump dishwasher according to the present invention.

List of reference signs:

1-heat-pump dishwasher;
11-lower trim;
111-first air-guiding structure; 1111-first snap-fit groove;
112-second air-guiding structure; 1121-first ventilation hole; 1122-curved section; 1123-straight section; 1124-snap-fit hole; 1125- guiding protrusion; 1126-inverted hook; 1127-snap-fit platform;
113-support structure; 1131-first snap-fit protrusion; 1132-second snap-fit protrusion; 113 3-support leg; 1134-third snap-fit protrusion;
12-first air vent;
13-housing; 131-first passage; 132-second passage;
14-base; 141-second ventilation hole; 142-guiding slot; 143-second snap-fit groove;
15-second air vent;
16-sump;
17-evaporator;
18-fan.

DETAILED DESCRIPTION OF THE INVENTION

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings and in conjunction with a washing machine. It should be understood by those skilled in the art that these following embodiments are only used to explain the technical principle of the present invention and are not intended to limit the scope of protection of the present invention. These embodiments can be adjusted by those skilled in the art as needed to adapt to specific application scenes. It should be noted that in the description of the present invention, terms indicating directional or positional relationships, such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the directional or positional relationships shown in the accompanying drawings. They are only used for ease of description, and do not indicate or imply that the device or element must have a specific orientation or must be constructed or operated in a specific orientation; therefore, they should not be considered as limitations to the present invention. In addition, ordinal terms "first", "second", "third" etc., are only used for descriptive purpose, and should not be understood as indicating or implying relative importance.
In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and defined, terms "mounting", "communicate with" and "connect" should be understood in a broad sense; for example, the connection may be a fixed connection, or a detachable connection, or an integral connection; it may be a mechanical connection; it may be a direct connection, or an indirect connection implemented through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present invention can be interpreted according to specific situations.
Firstly, the existing heat-pump dishwasher are introduced, the existing heat pump dishwasher utilizing air energy. Users usually embed the heat-pump dishwasher in a cabinet in order to save space in the kitchen, but because the width and height of the cabinet is basically the same as that of the dishwasher, the exhaust vent of the dishwasher embedded in the interior of the cabinet is positioned close to the inner wall of the cabinet, which results in the air around the dishwasher not being able to be circulated properly, affecting the heat transfer efficiency of the heat pump.
As shown in FIGs. 1 to 3, it intends to solve the problem that the existing heat-pump dishwasher 1 utilizing air energy usually needs to be embedded in a cabinet, but due to the width and height of the cabinet being basically the same as that of the dishwasher, so that the exhaust holes of the dishwasher embedded in the interior of the cabinet are too close to the cabinet, which results in the air around the dishwasher not being able to be circulated properly, and thus affects the heat exchange efficiency of the heat pump. The present invention provides a heat-pump dishwasher with a lower trim 11, and the lower trim 11 is arranged at the lower front portion of the heat-pump dishwasher 1. As shown in FIG. 1, the lower trim 11 comprises a first air-guiding structure 111 arranged vertically and a second air-guiding structure 112 arranged horizontally. The first air-guiding structure 111 and the second air-guiding structure 112 are fixedly connected. As shown in FIG. 2, the first air-guiding structure 111 divides an air inlet of the heat-pump dishwasher 1 into a first air vent 12 above and a second air vent 15 below (the arrows indicate the direction of airflow). Air can be blown in through the first air vent 12 which is adjacent to the top surface of the second air-guiding structure 112, allowing the air to be blown in along the top surface of the second air-guiding structure 112. The second air-guiding structure 112 comprises a curved section 1122 and a straight section 1123, the curved section 1122 being concave downward. The heat-pump dishwasher 1 also comprises a base 14. The straight section 1123 of the second air-guiding structure 112 is connected to the front sidewall of the base 14, and the curved section 1122 is connected to the first air-guiding structure 111. First ventilation holes 1121 are formed on the second air-guiding structure 112 and are located on the straight section 1123. Environmental air flows through the first ventilation holes 1121 of the second air-guiding structure 112 to the front sidewall of the base 14. Second ventilation holes 141 are arranged on the front sidewall of the base 14, and the air can flow through the second ventilation holes 141 and enter the interior of the base 14. A first passage 131 is formed between the base 14 and an bottom surface of the inner tub (not shown), a bottom surface of the housing 13, a rear side surface of the housing 13, and left and right side surfaces of the housing 13. A second passage 132 is formed between the bottom surface of the housing 13 and the bottom surfaces of the first and second air-guiding structures 111, 112, as well as the bottom surface of the base 14, the second passage 132 being in communication with the first passage 131. Air entering the interior of the base 14 can sequentially pass through the first passage 131 and the second passage 132 and be blown to the second air vent 15 and be blown out of the heat-pump dishwasher 1 from the second air vent 15.
The advantage of the above embodiment is that by dividing the air inlet of the heat-pump dishwasher 1 into the first and second air vents, and cooperating with the first passage 131 enclosed by the inner tub, the base 14, and the housing 13, as well as the second passage 132 enclosed by the housing 13 and the first air-guiding structure 111 and the second air-guiding structure 112, an air circulation mode is achieved in which the air inlet and air outlet are on the same side of the heat-pump dishwasher 1. The air circulation mode on one side avoids setting the air outlet of the heat pump dishwasher 1 in the interior of a cabinet, thereby solving the existing heat-pump dishwasher 1 utilizing air energy, which usually needs to be embedded in a cabinet, but due to the width and height of the cabinet being basically the same as that of the dishwasher, so that the exhaust holes of the dishwasher embedded in the interior of the cabinet are too close to the cabinet, which results in the air around the dishwasher not be able to be circulated, thereby affecting the heat exchange efficiency of the heat pump. In addition, the fixed connection of the first air-guiding structure 111 and the second air-guiding structure 112 facilitates the overall disassembly of the components, thereby facilitating subsequent maintenance of the heat pump dishwasher 1. In addition, by extending the bottom surface of the base 14 toward the bottom surface of the second air-guiding structure 112 and forming the second passage 132 together therewith, the bottom surface of the base 14 can also provide a certain support to the second air-guiding structure 112, making the structure more stable.
In addition, regarding the connection manner between the first air-guiding structure 111 and the second air-guiding structure 112, it can be understood by those skilled in the art that although the above embodiment describes them as fixedly connected, this is not the only connection manner of the first air-guiding structure 111 and the second air-guiding structure 112 according to the present invention. Those skilled in the art can also set the first air-guiding structure 111 and the second air-guiding structure 112 as an integrally formed structure. The integrally formed structure enhances the connection strength between the first air-guiding structure 111 and the second air-guiding structure 112, thereby improving the structural stability of the lower trim 11. At the same time, the integrally formed structure can also reduce the number of parts and lower the mold-making cost.
In addition, regarding the number of first ventilation hole 1121 and second ventilation hole 141, it can be understood by those skilled in the art that the first ventilation hole 1121 and second ventilation hole 141 may each be a single hole or multiple holes. Alternatively, one of the first or second ventilation holes may be multiple. Those skilled in the art can choose these situations according to actual needs. However, no matter what form is adopted, as long as ventilation holes for introducing environmental air into the interior of the heat pump dishwasher 1 are provided on the first air-guiding structure 111 and the second air-guiding structure 112, it does not exceed the inventive principle of the present invention and therefore will within the scope of the invention.
In addition, regarding the bending direction of the curved section 1122 of the second air-guiding structure 112, it can be understood by those skilled in the art that the curved section 1122 may be concave downward or configured as a smooth inclined surface, as long as it does not obstruct the airflow toward the first ventilation hole 1121. Those skilled in the art can make settings based on actual conditions, and these modifications are also within the scope of the invention.
The main embodiments of the present invention have been described above. Next, some preferred embodiments of the invention are described.
A preferred embodiment of the present invention is described below with reference to FIG.9. As shown in FIG.9, in one possible embodiment, the heat-pump dishwasher 1 further comprises a fan 18 arranged on the base 14. The fan 18 is configured to cause air to enter from the first air vent 12 and exit from the second air vent 15.
The advantage of the above embodiment is that by arranging the fan 18 on the base 14 of the heat pump dishwasher 1, the flow direction of the air entering the heat-pump dishwasher 1 can be controlled, so that the air can be blown in from the first air vent 12 above and blown out from the second air vent 15 below. Since the heat pump needs to obtain heat from the environmental high-temperature air for heat exchange, and the air with higher temperature will be located above the air with lower temperature, such an arrangement can draw the environmental high-temperature air into the interior of the heat-pump dishwasher 1 for heat exchange as much as possible. At the same time, the air with lower temperature after heat exchange is discharged from the second air vent 15 below, so that the air with the lower temperature gathers below, thereby avoiding the mixing of low-temperature air with high-temperature air above, thereby improving the heat exchange efficiency of the heat pump.
Continuing to refer to FIG. 9, in one possible embodiment, the heat-pump dishwasher 1 further comprises an evaporator 17, a sump 16, and an inner tub (not shown in the figure). The inner tub is arranged above the base 14, the sump 16 is arranged on the inner tub, the evaporator 17 is arranged on the base 14, and the fan 18 is located between the sump 16 and the evaporator 17.
The advantage of this embodiment is that: since bottoms of the sump 16 and the inner tub will be at a higher temperature due to the heat conduction of the high temperature washing water during operation, while the evaporator 17 requires heat absorption during its operation, the fan 18 is provided at a position between the evaporator 17 and both the sump 16 and the inner tub, and the direction of the airflow from the sump 16 and the inner tub to the evaporator 17 is controlled. This can blow the high-temperature air inside the heat-pump dishwasher 1 to the evaporator 17 as much as possible, thereby improving the heat exchange efficiency of the evaporator 17 and avoiding heat waste inside the heat-pump dishwasher 1.
As shown in FIGs.1, 2, 4, 7, and 8, in one possible embodiment, the lower trim 11 further comprises a support structure 113. The support structure 113 is provided with a first snap-fit protrusion 1131 and a second snap-fit protrusion 1132. Accordingly, the second air-guiding structure 112 is provided with a snap-fit hole 1124, and the first air-guiding structure 111 is provided with a first snap-fit groove 1111. The first snap-fit protrusion 1131 can be snapped in the first snap-fit groove 1111, and the second snap-fit protrusion 1132 can be snapped in the snap-fit hole 1124, thereby connecting the support structure 113 with the first and second air-guiding structures 111, 112. A third snap-fit protrusion 1134 is further provided on the support structure 113, and correspondingly a snap-fit platform 1127 is provided on the second air-guiding structure 112. The third snap-fit protrusion 1134 can be snapped on the snap-fit platform 1127. The support structure 113 also comprises a support leg 1133 which can be screwed to the support structure 113. The support structure 113 is supported on the bottom surface of the cabinet or the ground through the support legs 1133.
The advantage of this embodiment is that by arranging the support structure 113, and fixing the first and second air-guiding structures 111, 112 to the support structure 113 via the first snap-fit groove 1111 and first snap-fit protrusion 1131, the snap-fit hole 1124 and second snap-fit protrusion 1132, and the snap-fit platform 1127 and third snap-fit protrusion 1134, so that the first and second air-guiding structures 111, 112 are more stable, and it ensures normal air circulation of the heat-pump dishwasher 1. In addition, by arranging the supporting legs 1133 on the support structure 113, a certain space for the second passage 132 is formed between the first and second air-guiding structures 111, 112, the support structure 113, and the bottom of the housing 13, allowing the air inside the heat-pump dishwasher 1 to be discharged to the exterior of the heat-pump dishwasher 1 through the second passage 132, thereby realizing the exhaust of the heat-pump dishwasher 1.
In addition, since the support legs 1133 is connected to the support structure 113 in a screwed form, those skilled in the art can adjust the height of the second passage 132 by rotating the support legs 1133, or set the height of the second passage 132 to zero so that the internal air flows out from side space between sides of the first and second air-guiding structures 111, 112, the support structure 113, and the base 14, and the side of the housing 13. These arrangements are all within the scope of protection of the present invention.
As shown in FIGs.5 and 6, in one possible embodiment, the front sidewall of the base 14 is provided with a guiding slot 142, and correspondingly the second air-guiding structure 112 is provided with a guiding protrusion 1125 which can be inserted into the guiding slot 142. The front sidewall of the base 14 is provided with a second snap-fit groove 143, and correspondingly the second air-guiding structure 112 is provided with an inverted hook 1126. The inverted hook 1126 is able to be snapped into the second snap-fit groove 143.
In the case of the above-described embodiment, in the installation of the second air-guiding structure 112 and the front sidewall of the base 14, the guiding protrusion 1125 on the second air-guiding structure 112 is first inserted into the guiding slot 142 on the front sidewall of the base 14, so that the inverted hook 1126 on the second air-guiding structure 112 can be aligned with the second snap-fit groove 143 on the front sidewall of the base 14, and then the inverted hook 1126 can be snapped into the second snap-fit groove 143 to fix the second air-guiding structure 112 to the front sidewall of the base 14. The upper side of the inverted hook 1126 is provided with a bevel. As the inverted hook 1126 is gradually inserted into the second snap-fit groove 143, the bevel of the upper of the inverted hook 1126 abuts against the upper sidewall of the second snap-fit groove 143, so the upper sidewall of the second snap-fit groove 143 will exert downward pressure on the inverted hook 1126. Since the inverted hook 1126 itself has a certain elasticity, the head of the inverted hook 1126 can produce a slight deformation and then snap into the second snap-fit groove 143. Moreover, due to the downward pressure exerted on the inverted hook 1126, the connection between the snap-fit port and the second snap-fit slot 143 becomes tighter, enhancing the snapping strength.
It should be noted that the above-mentioned embodiments are only used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above-mentioned structure so that the present invention can be applied to more specific application scenarios.
So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without deviating from the principles of the present invention, those skilled in the art can make equivalent modifications or substitutions to the relevant technical features, and the technical solutions after these modifications or substitutions will all fall within the scope of protection of the present invention.

Claims

A heat-pump dishwasher with a lower trim, wherein the lower trim is arranged at a lower front portion of the heat-pump dishwasher and comprises a first air-guiding structure arranged vertically and a second air-guiding structure arranged horizontally, the first air-guiding structure and the second air-guiding structure being fixedly connected or integrally formed; wherein the first air-guiding structure divides an air inlet of the heat-pump dishwasher into a first air vent and a second air vent, so that air is able to be blown in through the first air vent, flow along one side of the second air-guiding structure into the interior of the heat-pump dishwasher, and then flow along the other side of the second air-guiding structure and be blown out through the second air vent along a direction opposite to a blowing-in direction of the air.
The heat-pump dishwasher with a lower trim according to claim 1, wherein the first air vent is positioned above the second air vent, the first air vent is adjacent to a top surface of the second air-guiding structure to allow the air to be blown in along the top surface of the second air-guiding structure, and the second air vent is adjacent to a bottom surface of the second air-guiding structure to allow the air to be blown out along the bottom surface of the second air-guiding structure.
The heat-pump dishwasher with a lower trim according to claim 2, further comprising an inner tub, a base, and a housing, wherein the inner tub is arranged above the base, the second air-guiding structure is fixedly connected to a front sidewall of the base, a first ventilation hole is provided on the second air-guiding structure, a second ventilation hole is provided on the front sidewall of the base, and the air is able to enter the interior of the base through the first ventilation hole and the second ventilation hole; wherein a first passage is formed between the base and a bottom surface of the inner tub, a bottom surface of the housing, a rear side surface of the housing, and left and right side surfaces of the housing, a second passage is formed between the bottom surface of the housing, bottom surfaces of the first and second air-guiding structures, and an bottom surface of the base, and the second passage is in communication with the first passage, so that the air entering the interior of the base is able to sequentially pass through the first and second passages and be blown out from the second air vent.
The heat-pump dishwasher with a lower trim according to claim 3, wherein the second air-guiding structure comprises a curved section and a straight section, the second air-guiding structure being connected to a front sidewall of the base at the straight section and to the first air-guiding structure at the curved section, the first ventilation hole being provided on the straight section.
The heat-pump dishwasher with a lower trim according to claim 4, wherein the curved section has a downwardly recessed shape.
The heat-pump dishwasher with a lower trim according to claim 3, further comprising a fan arranged on the base, the fan being configured to cause the air to enter from the first air vent and exit from the second air vent.
The heat-pump dishwasher with a lower trim according to claim 6, further comprising an evaporator and a sump, wherein the sump is arranged on the inner tub, the evaporator is arranged on the base, and the fan is located between the sump and the evaporator.
The heat-pump dishwasher with a lower trim according to claim 3, wherein the lower trim further comprises a support structure, the support structure being provided with a first snap-fit protrusion and a second snap-fit protrusion, wherein correspondingly the second air-guiding structure is provided with a snap-fit hole, and the first air-guiding structure is provided with a first snap-fit groove, and wherein the first snap-fit protrusion is able to be snapped in the first snap-fit groove, and the second snap-fit protrusion is able to be snapped in the snap-fit hole, so as to realize a connection between the supporting structure and the first air-guiding structure and between the supporting structure and the second air-guiding structure.
The heat-pump dishwasher with a lower trim according to claim 8, wherein the support structure further comprises a support leg connected to the support structure in a screwed connection form, and the support structure is supported by the support leg.
The heat-pump dishwasher with a lower trim according to claim 8, wherein the front sidewall of the base is provided with a guiding slot, and correspondingly the second air-guiding structure is provided with a guiding protrusion being able to be inserted into the guiding slot; and/or
wherein the front sidewall of the base is provided with a second snap-fit groove, and correspondingly the second air-guiding structure is provided with an inverted hook being able to be snapped in the second snap-fit groove; and/or

wherein the support structure is further provided with a third snap-fit protrusion, and correspondingly the second air-guiding structure is provided with a snap-fit platform, the third snap-fit protrusion being able to be snapped on the clamping platform.