A two-heat-exchanger box of a heat pump laundry treatment device and a heat pump washing machine

Abstract

The present invention discloses a two-heat-exchanger box of a heat pump laundry treatment device and a heat pump washing machine, belonging to the technical field of household appliances, aiming to solve the problems that the overall height of the two-heat-exchanger box cover on the existing heat pump laundry treatment device is relatively high, the two-heat-exchanger box occupies a large space in the heat pump laundry treatment device, making the volume of the heat pump laundry treatment device large, and the spraying efficiency of the spraying device is low and the spraying effect is poor. A two-heat-exchanger box of a heat pump laundry treatment device according to the present invention includes: a two-heat-exchanger box body having an accommodation space for accommodating a condenser and an evaporator of the heat pump laundry treatment device, and two-heat-exchanger box air inlets and two-heat-exchanger box air outlets are provided on both sides of the two-heat-exchanger box body; a two-heat-exchanger box cover which is covered with the opening of the two-heat-exchanger box body, and a spraying device located on the windward side of the evaporator is provided on the two-heat-exchanger box cover. The spraying device of the present invention is arranged on the windward side of the evaporator, which can efficiently remove lint and accelerate the condensation of humid and hot air during the drying process of the heat pump laundry treatment device, and improve the drying efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to a two-heat-exchanger box of a heat pump clothes treatment device and a heat pump washing machine. Background Art

[0002] Currently, most of the heat pump clothes treatment devices sold on the market are electric heating drying washing machines. The clothes treatment devices with electric heating drying have high drying temperatures during daily use, which are likely to damage clothes; the safety control logic of electric heating is complex and prone to failure; the drying efficiency is low, resulting in a long drying time; the power consumption is large, and the energy consumption level is low. However, with the improvement of people's living standards, the pursuit of high-end drum washing and drying machines is also increasing, and now high-end drum heat pump washing and drying machines are gradually coming into people's view.

[0003] The two heat exchangers (condenser and evaporator) on the existing heat pump clothes treatment devices are arranged dispersedly, which increases the occupied space of the heat pump clothes treatment device. While adopting a centralized arrangement, although the problem of the long air duct arrangement when the two heat exchangers are arranged dispersedly is solved, the spraying device on the existing two-heat-exchanger box of the heat pump clothes treatment device is arranged on the top of the two heat exchangers and sprays downward. The problems are: the overall height of the two-heat-exchanger box cover is relatively high, the two-heat-exchanger box occupies a large space in the heat pump clothes treatment device, making the volume of the heat pump clothes treatment device relatively large, and the spraying efficiency of the spraying device is low, the spraying effect is poor, and it cannot effectively remove the lint on the windward side of the evaporator. Summary of the Invention

[0004] In view of this, the present invention discloses a two-heat-exchanger box of a heat pump clothes treatment device and a heat pump washing machine, so as to solve the problems that the overall height of the two-heat-exchanger box cover on the existing heat pump clothes treatment device is relatively high, the two-heat-exchanger box occupies a large space in the heat pump clothes treatment device, making the volume of the heat pump clothes treatment device relatively large, the spraying efficiency of the spraying device is low, and the spraying effect is poor.

[0005] The technical solution adopted by the present invention to achieve the above objectives is as follows:

[0006] The first aspect of the present invention discloses a two-heat-exchanger box for a heat pump clothes treatment device, comprising: a two-heat-exchanger box body having an accommodation space for accommodating a condenser and an evaporator of the heat pump clothes treatment device, with an opening provided above the two-heat-exchanger box body, and a two-heat-exchanger box air inlet and a two-heat-exchanger box air outlet provided on both sides of the two-heat-exchanger box body. The two-heat-exchanger box air inlet is used to blow the humid and hot air discharged from the outer cylinder of the heat pump clothes treatment device during drying of the heat pump clothes treatment device into one side of the evaporator for condensation drying, and the two-heat-exchanger box air outlet is used to discharge the hot air heated by the condenser after drying by the evaporator into the outer cylinder; a two-heat-exchanger box cover which is closed with the opening of the two-heat-exchanger box body, and a spraying device is provided on the two-heat-exchanger box cover on the windward side of the evaporator, and the spraying port of the spraying device is arranged opposite to the windward surface of the evaporator.

[0007] Further optionally, the spraying port is configured such that the water sprayed therefrom can be sprayed onto the upper half of the windward surface of the evaporator.

[0008] Further optionally, the spraying port is arranged opposite to the upper half of the windward surface of the evaporator.

[0009] Further optionally, the spraying device includes a water inlet joint and a spraying box communicated with the water inlet joint. An accommodation opening is provided on the two-heat-exchanger box cover. The spraying box is embedded in the accommodation opening and is located on the windward side of the evaporator. The spraying box is hermetically connected with the two-heat-exchanger box cover, and a plurality of the spraying ports are provided on the side wall of the spraying box facing the windward surface of the evaporator.

[0010] Further optionally, the water inlet joint is integrally formed with the two-heat-exchanger box cover or the spraying box.

[0011] Further optionally, a continuous annular rib protruding downward in the thickness direction of the two-heat-exchanger box cover is formed at the edge of the accommodation opening. An inner box body is provided inside the annular rib. The water inlet joint is communicated with the internal space of the inner box body. An annular gap is formed between the annular rib and the side wall of the inner box body. An annular sealing body is provided in the annular gap. The annular sealing body, the annular rib and the side wall of the inner box body form a sealed connection. A plurality of spraying ports penetrating through the annular rib and the internal space of the inner box body are provided on the side wall of the inner box body facing the two-heat-exchanger box air outlet.

[0012] Further optionally, the annular sealing body forms an annular groove or an annular step on one side of the lower surface of the two-heat-exchanger box cover. The lower surface of the spraying box has a spraying cover. The spraying cover is embedded in the annular rib. An annular protrusion is provided on the spraying cover facing the spraying box. The annular protrusion is inserted into the bottom of the annular groove, or the end of the annular protrusion abuts against the annular step.

[0013] Further optionally, the annular rib, the inner box body and the spray cover form the spray box, or the inner box body and the spray cover form the spray box.

[0014] Further optionally, the upper surface of the spray box is flush with the upper surface of the two-device box cover.

[0015] In a second aspect of the present invention, a heat pump washing machine is disclosed, including: a condenser; an evaporator; a two-device box of a heat pump laundry treatment device according to the first aspect, the condenser and the evaporator are arranged in the two-device box and form an air duct in the two-device box, the evaporator is located on one side of the air inlet of the two-device box, the condenser is located on one side of the air outlet of the two-device box, the air duct communicates with the air inlet and the air outlet of the two-device box; an outer cylinder, a first air duct and a second air duct communicating with its interior are provided above it, the two-device box is arranged above the outer cylinder, the first air duct communicates with the air inlet of the two-device box, the second air duct communicates with the air outlet of the two-device box, and a drying fan assembly is provided on the first air duct or the second air duct.

[0016] Beneficial effects: In the present invention, the condenser and the evaporator are arranged in the two-device box body, which not only shortens the length of the drying air duct of the washing machine, simplifies the structure of the washing machine, reduces the heat loss of the air in the drying air duct during clothes drying, enables the structures of the evaporator and the condenser to be smaller, and at the same time, the spraying device is arranged on the windward side of the evaporator, the spray port is located on the lower surface of the two-device box cover and is arranged towards the air outlet side of the two-device box, which can further reduce the thickness (height direction) of the two-device box. On the one hand, the water sprayed by the spraying device can efficiently remove the lint attached to the surface of the evaporator and the peculiar smell in the drying air flow during the drying process. On the other hand, it accelerates the condensation of the humid and hot air on the surface of the evaporator, accelerates the dehumidification of the humid and hot air, and further improves the drying efficiency of the heat pump laundry treatment device. Description of the Drawings

[0017] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other objects, features and advantages of the present invention will become more obvious. The following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 An exploded view of a two-device box of a heat pump laundry treatment device in an embodiment of the present invention is shown, and the arrow A in the figure indicates the flow direction of the drying air flow;

[0019] Figure 2 A schematic diagram of one side of the air inlet of the two-device box body in an embodiment of the present invention is shown;

[0020] Figure 3Shows a schematic diagram of the upper surface of the two-device lid in an embodiment of the present invention;

[0021] Figure 4 Shows a schematic diagram of the lower surface of the two-device lid in an embodiment of the present invention. In the figure, the direction of the A arrow is the flow direction of the drying air flow, and the direction of the B arrow is the direction of the thickness of the two-device lid downward;

[0022] Figure 5 Shows an exploded view of the two-device lid and the spray lid in an embodiment of the present invention;

[0023] Figure 6 Shows an exploded view of the connection between the two-device box and the outer tub of the heat pump washing machine. In the figure, the A arrow is the flow direction of the drying air flow. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms of "a", "the", and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Multiple" generally includes at least two, but does not exclude the case of including at least one.

[0026] It should be understood that the term "and / or" used herein is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0027] It should also be noted that the terms "comprise", "include", or any other variant thereof are intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such commodity or system. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element.

[0028] In the prior art, the overall height of the two-device box cover on the heat pump laundry treatment device is relatively high, and the two-device box occupies a large space inside the heat pump laundry treatment device, making the volume of the heat pump laundry treatment device relatively large, with low spraying efficiency and poor spraying effect of the spraying device.

[0029] In the present invention, a two-device box is provided with a condenser and an evaporator disposed therein. At the same time, a spraying device is added to the two-device box cover, reducing the length of the pipeline and reducing heat loss, enabling the condenser and the evaporator to work more efficiently, and avoiding the problem that the condenser and the evaporator need to occupy a large space structure when arranged dispersedly and working inefficiently, resulting in a relatively large volume of the heat pump laundry treatment device. At the same time, the spraying device is arranged on the windward side of the evaporator, spraying water towards the windward side of the evaporator, which can efficiently remove the lint and the odor of the clothes attached to the evaporator during the drying process, and also accelerate the condensation of the humid and hot air on the surface of the evaporator, improving the drying efficiency. In addition, the spraying device on the two-device box cover is optimized, reducing the distance between the upper surface of the two-device box cover and the lower surface of the spraying device, which can further reduce the overall height of the two-device box, facilitating the arrangement in the heat pump laundry treatment device and reducing the volume of the heat pump laundry treatment device.

[0030] To further elaborate on the technical solutions in the present invention, in combination with Figures 1-6 , the following specific embodiments are provided.

[0031] Embodiment 1

[0032] This embodiment provides a two-device box for a heat pump laundry treatment device. As Figures 1-4 shown, it includes: a two-device box body 443 having an accommodation space for accommodating the condenser 442 and the evaporator 441 of the heat pump laundry treatment device. An opening is provided above the two-device box body 443. Two-device box air inlets a and two-device box air outlets b are provided on both sides of the two-device box body 443. The two-device box air inlet a is used to introduce the humid and hot air discharged from the outer cylinder 23 of the heat pump laundry treatment device during drying of the heat pump laundry treatment device into one side of the evaporator 441 for condensation drying. The two-device box air outlet b is used to discharge the hot air heated by the condenser 442 after drying by the evaporator 441 into the outer cylinder 23. A two-device box cover 444 is closed with the opening of the two-device box body 443. The two-device box cover 444 is provided with a spraying device located on the windward side of the evaporator 441, and the spraying port c of the spraying device is arranged opposite to the windward surface of the evaporator 441.

[0033] In this embodiment, the two-device box cover 444 can be fixedly connected to the two-device box body 443 by screws.

[0034] In this embodiment, two device boxes are provided, which can place the condenser and the evaporator together. When the heat pump clothes treatment device is drying clothes, the length of the air duct is reduced, heat loss is decreased, and the condenser and the evaporator can work more efficiently. It avoids the problem that the heat pump clothes treatment device has a large volume due to the large space structure required for the scattered arrangement of the condenser and the evaporator. At the same time, a spraying device is provided to spray water on the windward side of the evaporator, which can remove the lint and the peculiar smell of clothes attached to the evaporator during the drying process, and also accelerate the condensation of the humid and hot air on the surface of the evaporator.

[0035] To further improve the effect of removing lint and condensation, preferably, the spray port c is configured such that the water sprayed therefrom can be sprayed onto the upper half of the windward surface of the evaporator 441, so that the water flows from the top of the evaporator 441 to the bottom to discharge the lint. At the same time, the contact surface between the sprayed water and the humid and hot air is increased, the effect of condensing and dehumidifying the humid and hot air is improved, and the spraying device can spray more efficiently. Preferably, the spray port c is disposed opposite to the upper half of the windward surface of the evaporator 441, which can reduce the distance from the upper surface of the two-device box cover 444 to the bottom of the spraying device, and thus reduce the overall height of the two-device box.

[0036] In this embodiment, a drain port is provided at the bottom of the two-device box body 443 for discharging the water sprayed by the spraying device.

[0037] Optionally, a relief groove is formed on the lower surface of the two-device box cover 444, a relief protrusion is formed at the position of the relief groove on the upper surface of the two-device box cover 444, and the relief protrusion is smoothly transitioned with the upper surface of the two-device box cover 444 to form a smooth surface, which is beneficial to reducing the overall height of the two-device box.

[0038] In an embodiment of the present embodiment, the spraying device includes a water inlet joint 445 and a spraying box communicated with the water inlet joint 445. The two-device box cover 444 is provided with a receiving opening. The spraying box is embedded in the receiving opening and located on one side of the windward surface of the evaporator 441. The spraying box is hermetically connected to the two-device box cover 444. The side wall of the spraying box facing the windward surface of the evaporator 441 is provided with a plurality of the spraying openings c. The spraying box is embedded in the receiving opening and located on one side of the windward surface of the evaporator 441, which can reduce the distance from the upper surface of the two-device box cover 444 to the lower surface of the spraying box, thereby reducing the overall height of the two-device box, making the layout of the heat pump washing machine more compact and the volume smaller. Further optionally, the water inlet joint 445 and the two-device box cover 444 are integrally formed. Further, a continuous annular rib 4441 protruding downward in the thickness direction of the two-device box cover 444 is formed at the edge of the receiving opening. An inner box body 4442 is provided inside the annular rib 4441. The water inlet joint 445 is communicated with the internal space of the inner box body 4442. An annular gap is formed between the annular rib 4441 and the side wall of the inner box body 4442. The annular gap is provided with an annular sealing body 4444. The annular sealing body 4444, the annular rib 4441 and the side wall of the inner box body 4442 form a hermetic connection. The side wall of the inner box body 4442 facing the air outlet b of the two-device box is provided with a plurality of spraying openings c penetrating through the annular rib 4441 and the internal space of the inner box body 4442. Optionally, the annular sealing body 4444, the annular rib 4441 and the side wall of the inner box body 4442 are fixed by ultrasonic welding to form a hermetic connection. To facilitate the molding of the inner box body, the annular sealing body 4444 forms an annular groove or an annular step on one side of the lower surface of the two-device box cover 444. The lower surface of the spraying box has a spraying cover 447. The spraying cover 447 is embedded in the annular rib 4441. The spraying cover 447 is provided with an annular protrusion on the side facing the spraying box. The annular protrusion is inserted into the bottom of the annular groove, or the end of the annular protrusion abuts against the annular step. The annular groove or the annular step plays a role in positioning the installation of the spraying cover 447. Optionally, the spraying cover 447 is fixed to the spraying box by ultrasonic welding. Preferably, the water inlet joint and the two-device box cover are integrally formed and arranged.

[0039] Further, the annular rib 4441, the inner box body 4442 and the spraying cover 447 form the spraying box, or the inner box body 4442 and the spraying cover 447 form the spraying box.

[0040] In yet another embodiment of the present embodiment, the spray box is a separate part, and its side wall is provided with a rib plate that surrounds the spray box for one week and is perpendicular to its side wall. The two-device box cover 444 is provided with a receiving opening, and the spray box is embedded at the position of the receiving opening. The rib plate is detachably and hermetically connected to the two-device box body 443, or is hermetically connected by ultrasonic welding, and the rib plate seals the receiving opening. In this embodiment, the water inlet joint can be integrally formed with the spray box.

[0041] Further preferably, the upper surfaces of the two-device box covers 444 are flush with each other, forming an avoidance space on the upper surfaces of the two-device box covers 444. At the same time, the space of the spray box at the bottom of the two-device box covers 444 is reduced, which not only helps to reduce the overall volume of the two-device box, but also helps to reduce the resistance of the air passing through the two devices.

[0042] Optionally, the lower surface of the two-device box cover 444 is provided with a continuous annular sealing protrusion 4443, and the two-device box body 443 forms a continuous annular sealing groove 4431 at the end surface of the opening. The annular sealing protrusion 4443 is in sealing cooperation with the annular sealing groove 4431 to achieve sealing and prevent air leakage from the two-device box. The upper surface of the two-device box cover 444 is a smooth surface, and the upper surface of the spray box is flush with the upper surface of the two-device box cover 444, so that the distance between the two-device box cover 444 and the side wall of the housing of the heat pump laundry treatment device can be made smaller, which is beneficial to reducing the volume of the heat pump laundry treatment device.

[0043] Embodiment 2

[0044] This embodiment provides a heat pump washing machine, as Figure 6 shown, including a condenser 442, an evaporator 441, and a two-device box of a heat pump laundry treatment device described in Embodiment 1. The condenser 442 and the evaporator 441 are arranged in the two-device box and form an air duct in the two-device box. The evaporator 441 is located on one side of the air inlet a of the two-device box, and the condenser 442 is located on one side of the air outlet b of the two-device box. The air duct communicates with the air inlet a of the two-device box and the air outlet b of the two-device box; an outer tub 23, above which there are a first air duct 41 and a second air duct 42 communicating with its interior. The two-device box is arranged above the outer tub 23. The first air duct 41 communicates with the air inlet a of the two-device box, and the second air duct 42 communicates with the air outlet b of the two-device box. A drying fan assembly 43 is provided on the first air duct 41 or the second air duct 42. The drying fan assembly 43 in this embodiment includes at least a fan.

[0045] Optionally, the evaporator is a tube-type heat exchanger, and fins are provided on its heat exchange tubes. In this embodiment, the water sprayed from the spray port is sprayed onto the fins of the evaporator.

[0046] Specifically, the front end of the outer cylinder 23 is provided with an air inlet for the two-component box of the outer cylinder, and the rear end thereof is provided with an air outlet of the outer cylinder. The first air duct 41 communicates with the air inlet for the two-component box of the outer cylinder, and the second air duct 42 communicates with the air outlet of the outer cylinder. When the heat pump washing machine dries clothes, circulating air is used for drying. The humid and hot air in the outer cylinder 23 is extracted by the drying fan assembly 43 and sent to the evaporator and the condenser in sequence. The evaporator cools down to dehumidify the humid and hot air. The spray water of the spray device is sprayed onto one side of the windward surface of the evaporator to remove the lint attached to the evaporator during the drying process, and at the same time, accelerate the condensation of the humid and hot air. If the washing machine removes the odor of the clothes, the air with odor molecules condenses on the surface of the evaporator. At the same time, the spray water accelerates the condensation speed and discharges the odor molecules condensed in the water through the drain port.

[0047] The exemplary embodiments of the present disclosure have been specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, arrangements or implementation methods described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A two-heat-exchanger box of a heat pump clothes treatment device, characterized in that Comprising: A two-device box body having an accommodation space for accommodating the condenser and evaporator of the heat pump clothes treatment device. An opening is provided above the two-device box body. Two-device box air inlets and two-device box air outlets are provided on both sides of the two-device box body. The two-device box air inlets are used to blow the humid and hot air discharged from the outer cylinder of the heat pump clothes treatment device during drying of the heat pump clothes treatment device into one side of the evaporator for condensation drying, and the two-device box air outlets are used to discharge the hot air heated by the condenser after drying by the evaporator into the outer cylinder; A two-device box cover that is closed with the opening of the two-device box body. A spraying device is provided on the two-device box cover on the windward side of the evaporator, and the spraying port of the spraying device is arranged opposite to the windward surface of the evaporator; The spraying device includes a water inlet joint and a spraying box communicated with the water inlet joint. An accommodation opening is provided on the two-device box cover. The spraying box is embedded in the accommodation opening and is located on one side of the windward surface of the evaporator. The upper surface of the spraying box is flush with the upper surface of the two-device box cover; A continuous annular rib protruding downward in the thickness direction of the two-device box cover is formed at the edge of the accommodation opening. An inner box body is provided inside the annular rib. The water inlet joint is communicated with the internal space of the inner box body. An annular gap is formed between the annular rib and the side wall of the inner box body. An annular sealing body is provided in the annular gap. The annular sealing body, the annular rib and the side wall of the inner box body form a sealed connection. A plurality of spraying ports penetrating the annular rib and the internal space of the inner box body are provided on the side wall of the inner box body facing the two-device box air outlet; The annular sealing body forms an annular groove or an annular step on one side of the lower surface of the two-device box cover. The lower surface of the spraying box has a spraying cover. The inner box body and the spraying cover form the spraying box. The spraying cover is embedded in the annular rib. An annular protrusion is provided on the spraying cover facing the spraying box side. The annular protrusion is inserted into the bottom of the annular groove, or the end of the annular protrusion abuts against the annular step.

2. The two-heat-exchanger box of a heat pump clothes treatment device according to claim 1, wherein The spraying ports are configured such that the water sprayed therefrom can be sprayed onto the upper half of the windward surface of the evaporator.

3. The two-device box of a heat pump clothes treatment device according to claim 2, characterized in that The spraying ports are arranged opposite to the upper half of the windward surface of the evaporator.

4. The two-heat-exchanger box of a heat pump laundry treatment device according to claim 3, characterized in that, The spraying box is hermetically connected to the two-device box cover, and a plurality of the spraying ports are provided on the side wall of the spraying box facing the windward surface of the evaporator.

5. The two-heat-exchanger box of a heat pump clothes treatment device according to claim 4, characterized in that, The water inlet joint is integrally formed with the two-device box cover or the spraying box.

6. A heat pump washing machine, characterized in that, Comprising: A condenser; An evaporator; A two-device box of a heat pump clothes treatment device according to any one of claims 1-5, wherein the condenser and the evaporator are arranged in the two-device box and form an air duct in the two-device box. The evaporator is located on one side of the two-device box air inlet, and the condenser is located on one side of the two-device box air outlet. The air duct is communicated with the two-device box air inlet and the two-device box air outlet; An outer cylinder, with a first air duct and a second air duct communicating with its interior above it. The two-device box is arranged above the outer cylinder. The first air duct communicates with the air inlet of the two-device box, and the second air duct is connected to the air outlet of the two-device box. A drying fan assembly is provided on the first air duct or the second air duct.

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