CN-121994046-A - Heat exchanger, heat pump system and drying equipment

Abstract

The application provides a heat exchanger, a heat pump system and drying equipment, the heat exchanger has a cross-section that increases in area along a first direction and is perpendicular to the first direction. The heat exchanger is provided with a windward side and a leeward side, and the first direction is directed from the windward side to the leeward side. The application can improve the heat exchange efficiency of the heat exchanger on the whole.

Inventors

• YE MINGKUN
• ZHAO JIAQIANG
• ZHOU CHUNHAO
• ZHAO ZHONGCHUANG
• ZHU LEI
• TU YOUMING

Assignees

• 美的集团股份有限公司

Dates

Publication Date

20260508

Application Date

20241107

Claims (12)

1. 1. A heat exchanger, wherein a cross-section of the heat exchanger increases in area along a first direction, the cross-section being perpendicular to the first direction; the heat exchanger is provided with a windward side and a leeward side, and the first direction is directed from the windward side to the leeward side.
2. 2. The heat exchanger according to claim 1, characterized in that it is used in a drying apparatus, said heat exchanger being arranged in a step towards the side of the drum of said drying apparatus.
3. 3. A heat exchanger according to claim 2, wherein the ratio between the areas of adjacent ones of the sections of different areas is 1.1 to 2.
4. 4. A heat exchanger according to claim 3, wherein the ratio is 4/3.
5. 5. A heat exchanger according to any one of claims 1 to 4, comprising a plurality of spaced apart fins extending in the first direction, the cross section being located between two of the fins furthest apart.
6. 6. A heat pump system, the heat pump system comprising: A compressor; An evaporator; a condenser comprising the heat exchanger according to any one of claims 1 to 5, the compressor, the condenser, and the evaporator forming a refrigerant circulation passage.
7. 7. A drying apparatus, characterized in that the drying apparatus comprises: A drying chamber; The air duct shell is provided with a heat exchange cavity communicated with the drying chamber; The heat pump system of claim 6, wherein at least the evaporator and the condenser are disposed in the heat exchange chamber.
8. 8. The drying apparatus according to claim 7, wherein the drying chamber includes a drum, the drum and the condenser are arranged in a radial direction of the drum, and when an axis of the drum is parallel to a horizontal plane, a perpendicular line of the condenser to the axis is disposed at an acute angle or an obtuse angle with a gravitational direction of the drum.
9. 9. The drying apparatus according to claim 8, wherein the drum has a diameter of 540mm to 570mm, and the condenser has a size of 50mm to 100mm in the first direction.
10. 10. The drying apparatus according to claim 7, wherein the axis of the drum is perpendicular to the first direction, the arrangement direction of the evaporator and the drum, and the evaporator and the condenser are arranged along the first direction, respectively.
11. 11. The heat exchanger of claim 10, wherein the axis of the drum is parallel to a horizontal plane, the axis, the first direction, and the arrangement direction are perpendicular to each other, a side of the condenser facing away from the drum and a side of the evaporator facing away from the drum are located in the same horizontal plane, and a height difference between a side of the condenser near the drum and a center point of the drum is reduced in the first direction.
12. 12. The drying apparatus according to claim 11, wherein the drum has a diameter of 540mm to 570mm, and the condenser increases in size from 63mm to 84mm in the arrangement direction along the first direction.

Description

Heat exchanger, heat pump system and drying equipment Technical Field The application relates to the technical field of household appliances, in particular to a heat exchanger, a heat pump system and drying equipment. Background Heat pump systems are widely used in today's society for various home appliances requiring heat exchange function, for example, heat pump systems are used for drying apparatuses to achieve a drying effect. In the prior art, how to further improve the heat exchange efficiency of a heat exchanger is a major concern for those skilled in the art when a common heat pump system comprises a heat exchanger. Disclosure of Invention The application provides a heat exchanger, a heat pump system and drying equipment, which can improve the heat exchange efficiency of the heat exchanger on the whole. In order to solve the technical problems, the application provides a heat exchanger, the area of the cross section of which is increased along a first direction, the cross section is vertical to the first direction, wherein the heat exchanger is provided with a windward side and a leeward side, and the first direction points to the leeward side from the windward side. In order to solve the technical problems, the application further provides a heat pump system, which comprises a compressor, an evaporator and a condenser, wherein the condenser comprises the heat exchanger, and the compressor, the condenser and the evaporator form a refrigerant circulation channel. In order to solve the technical problems, the application further provides drying equipment which comprises a drying chamber, an air duct shell and the heat pump system, wherein the air duct shell is provided with a heat exchange cavity communicated with the drying chamber, and at least an evaporator and a condenser are arranged in the heat exchange cavity. The heat exchange device has the beneficial effects that the air flow flows through the heat exchanger along the first direction, so that the heat exchange quantity of the air flow and the region on the leeward side of the heat exchanger is lower than that of the air flow and the windward side of the heat exchanger, the area of the section of the heat exchanger is increased along the first direction, the contact area of the air flow and the heat exchanger is increased along the first direction, and the heat exchange quantity of the air flow and the leeward side of the heat exchanger can be increased. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein: fig. 1 is a schematic view showing the structure of an embodiment of a drying apparatus according to the present application; FIG. 2 is a schematic diagram of an embodiment of a heat pump system of the present application; FIG. 3 is a schematic cross-sectional view of the embodiment of FIG. 2; FIG. 4 is a schematic view of an embodiment of a heat exchanger according to the present application; FIG. 5 is a schematic view of an embodiment of an evaporator and condenser of the present application; FIG. 6 is a schematic view of an embodiment of a heat exchanger of the present application; fig. 7 is a schematic view of a flow pattern of the refrigerant in the condenser. Detailed Description In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail. The terms "first," "second," and the like in this disclosure are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is also to be understood that the terminology used in the description of the a