A dehumidifying device and an air conditioner having the same

Abstract

The present invention discloses a dehumidifying device and an air conditioner having the same. The dehumidifying device includes: a housing and an intermediate partition, the intermediate partition separating a first chamber and a second chamber inside the housing, the intermediate partition being provided with a second air-permeable structure communicating the first chamber and the second chamber; the housing being provided with a first air-permeable structure communicating the environment where the dehumidifying device is located with the second chamber; a blower assembly disposed in the first chamber; an electrical box assembly disposed in the second chamber; wherein when the blower assembly operates, a negative pressure is generated on the inlet side of the blower assembly, causing external air to be sucked to the inlet side of the blower assembly through the first air-permeable structure, the electrical box assembly and the second air-permeable structure to form a ventilation flow path for dissipating heat from the electrical box assembly.

Description

Technical Field

[0001] The present invention relates to the field of dehumidifying devices, and particularly to a dehumidifying device and an air conditioner having the same. Background Art

[0002] Currently, when using a variable-frequency compressor in a dehumidifying device, an air conditioner or similar equipment, an inverter is equipped for the compressor. Since the inverter is responsible for supplying power to the variable-frequency compressor and has a relatively large power, components such as the compressor IPM and PFC will generate a large amount of heat. At the same time, there are power modules with large heat generation, such as chokes and DC fan control modules, in the electronic control box of the variable-frequency air conditioner. If these heats cannot be dissipated in time, it is easy to cause component protection or even burnout, and then cause the equipment to malfunction. Therefore, heat dissipation for the variable-frequency controller is required. Summary of the Invention

[0003] In view of this, the present invention discloses a dehumidifying device and an air conditioner having the same, so as to at least solve the problem of poor heat dissipation effect of the current dehumidifying device.

[0004] The technical solution adopted by the present invention to achieve the above object is as follows:

[0005] The first aspect of the present invention discloses a dehumidifying device, which includes:

[0006] A housing and an intermediate partition. The intermediate partition divides a first chamber and a second chamber in the housing. The intermediate partition is provided with a second air-permeable structure communicating the first chamber and the second chamber; the housing is provided with a first air-permeable structure communicating with the second chamber;

[0007] An air supply assembly, which is arranged in the first chamber;

[0008] An electrical box assembly, which is arranged in the second chamber;

[0009] Wherein when the air supply assembly works, a negative pressure is generated on the inlet side of the air supply assembly, so that external air is sucked to the inlet side of the air supply assembly through the first air-permeable structure, the electrical box assembly and the second air-permeable structure to form a ventilation flow path for dissipating heat from the electrical box assembly.

[0010] Further optionally, the electrical box assembly includes an electrical box and an electrical box cover,

[0011] The electrical box is fixed on the intermediate partition;

[0012] The electrical box cover is fixed on the electrical box, and the electrical box cover is provided with a third ventilation structure and a fourth ventilation structure at different position heights to form a ventilation flow path from the third ventilation structure to the fourth ventilation structure inside the electrical box assembly when dissipating heat from the electrical box assembly.

[0013] Further optionally, the electrical box includes: a heat sink,

[0014] The heat absorption end of the heat sink is located inside the electrical box;

[0015] The heat dissipation end of the heat sink penetrates through the middle partition and extends into the first chamber, and the heat dissipation end is in the ventilation flow path formed between the second ventilation structure and the inlet side of the air supply component.

[0016] Further optionally, the housing includes a front shell and a rear plate, and the front shell and the rear plate cooperate to form an installation cavity;

[0017] Wherein the middle partition is arranged vertically in the installation cavity, the front side plate surface of the middle partition faces the front shell to partition out the first chamber at the front side inside the installation cavity, and the back side plate surface of the middle partition faces the rear plate to partition out the second chamber at the rear side inside the installation cavity.

[0018] Further optionally, the first ventilation structure is arranged on the rear plate, and the first ventilation structure adopts a louver with an opening facing downward and outward of the rear plate.

[0019] Further optionally, the installation position of the first ventilation structure is higher than the installation position of the electrical box assembly.

[0020] Further optionally, the third ventilation structure is arranged at the side plate of the electrical box cover and adopts a louver with an opening facing downward and outward of the electrical box cover; the fourth ventilation structure is arranged at the bottom plate of the electrical box cover and adopts a ventilation hole facing downward; wherein the installation position of the third ventilation structure is higher than the installation position of the fourth ventilation structure.

[0021] Further optionally, the air supply component includes:

[0022] A centrifugal fan, the centrifugal fan is installed on the upper part of the front side plate surface of the middle partition, and the installation position of the centrifugal fan is higher than the height of the heat dissipation end;

[0023] An air duct, the air duct is installed on the upper part of the front side plate surface of the middle partition, the inlet of the air duct is connected to the outlet of the centrifugal fan, and the outlet of the air duct is communicated with the outside of the dehumidification device.

[0024] Further optionally, the dehumidification device further includes:

[0025] A compressor, which is arranged in the first chamber and is located in the ventilation flow path formed between the second air-permeable structure and the inlet side of the air supply component;

[0026] A heat exchanger, which is arranged on the front shell and is located on the inlet side of the centrifugal fan;

[0027] A water receiving tray, which is located below the heat exchanger and is used for collecting the condensed water generated on the heat exchanger.

[0028] Further optionally, the electrical box assembly is arranged at the lower part of the back side plate of the middle partition board, and the installation position of the second air-permeable structure is lower than the installation position of the electrical box assembly.

[0029] In a second aspect, an air conditioner is disclosed, which includes any one of the above-mentioned dehumidifying devices.

[0030] Beneficial effects: By optimizing the installation position of the electrical box of the dehumidifying device, the present invention utilizes negative pressure air intake to quickly dissipate heat from the radiator fins, choke coils in the electrical box, power modules such as DC fan control, etc. At the same time, air-permeable structures are added at corresponding positions to ensure that media such as water and air do not enter the electrical box to damage and corrode the components, and incidentally dissipate heat from the compressor. Description of the Drawings

[0031] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other objectives, 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.

[0032] Figure 1 Shows a schematic diagram of the overall structure of the dehumidifying device according to an embodiment;

[0033] Figure 2 Shows Figure 1 An enlarged view of part A in

[0034] Figure 3 Shows a schematic diagram of the structure of the electrical box cover according to an embodiment.

[0035] In the figure: 1. Rear plate; 1-1. First air-permeable structure; 2. Electrical box cover; 2-1. Third air-permeable structure; 2-2. Fourth air-permeable structure; 3. Frequency conversion controller; 4. Middle partition board; 4-1. Second air-permeable structure; 5. Compressor; 6. Radiator fins; 7. Air duct; 8. Centrifugal fan; 9. Heat exchanger. Detailed Embodiments

[0036] 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. Apparently, 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.

[0037] 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 "a", "said", and "the" 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. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0038] 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.

[0039] It should also be noted that the terms "include", "comprise", 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 further 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 additional identical elements in the commodity or system including the said element.

[0040] Currently, electrical boxes are provided inside existing dehumidifying devices and air conditioners. However, there is no or weak air convection at the installation position of the variable frequency controller in the electrical box, the temperature difference between the air and the heat sink is small, and the heat dissipation effect of the electrical box is poor. At the same time, during the dehumidification process of the dehumidifying device, the moisture content of the internal air is high, which may cause damage and corrosion to components by media such as water and air. The present invention improves the heat dissipation method of the variable frequency controller in the electrical box of the existing dehumidifying device. By optimizing the installation position of the variable frequency controller, negative pressure air intake is used to dissipate heat from the heat sink and power modules with large heat generation such as choke coils and DC fan control modules in the electrical control box. At the same time, it is ensured that media such as water and air will not cause damage and corrosion to components, and it can also dissipate heat and cool down the compressor incidentally.

[0041] To further elaborate on the technical solutions in the present invention, with reference to Figures 1-3 as shown below, the following specific embodiments are provided.

[0042] Example 1

[0043] In this example, a dehumidifying device is provided, which includes:

[0044] A housing and an intermediate partition 4. The intermediate partition 4 divides the interior of the housing into a first chamber and a second chamber, and the intermediate partition 4 is provided with a second air-permeable structure 4-1 communicating the first chamber and the second chamber; the housing is provided with a first air-permeable structure 1-1 communicating with the second chamber;

[0045] A blowing assembly, which is arranged in the first chamber;

[0046] An electric box assembly, which is arranged in the second chamber. The electric box assembly includes an electric box and an electric box cover 2. The electric box cover 2 is fixed on the intermediate partition 4, and the electric box cover 2 is provided with a third air-permeable structure 2-1 and a fourth air-permeable structure 2-2;

[0047] Wherein when the blowing assembly works, a negative pressure is generated on the inlet side of the blowing assembly, so that external air is sucked to the inlet side of the blowing assembly through the first air-permeable structure 1-1, the third air-permeable structure 2-1, the fourth air-permeable structure 2-2 and the second air-permeable structure 4-1 to form a ventilation flow path for dissipating heat from the electric box.

[0048] The dehumidifying device in this example effectively protects the electric box by adding an intermediate partition 4 inside the housing to divide the interior of the housing into corresponding chambers, installing the blowing assembly and the electric box assembly in the two chambers respectively to separate them, then installing the electric box assembly and the blowing assembly at appropriate height positions and correspondingly opening air-permeable structures, so as to add a ventilation flow path between the outside and the blowing assembly for dissipating heat from the electric box assembly.

[0049] In some optional ways, the electric box is fixed on the intermediate partition, including: a heat sink 6 fixed on the electric box. Preferably: the heat absorption end of the heat sink 6 is located inside the electric box; the heat dissipation end of the heat sink 6 penetrates through the intermediate partition 4 and extends into the first chamber, and the heat dissipation end is in the ventilation flow path formed between the second air-permeable structure 4-1 and the inlet side of the blowing assembly. After the heat dissipation end is placed in the first chamber, the heat dissipation end can be cooled by the air flow path formed in this chamber.

[0050] In this example, the housing includes a front shell and a rear plate 1. The front shell and the rear plate 1 cooperate to form an installation cavity. Preferably: the intermediate partition 4 is arranged vertically in the installation cavity, the front side plate surface of the intermediate partition 4 faces the front shell to separate a first chamber on the front side inside the installation cavity, and the back side plate surface of the intermediate partition 4 faces the rear plate 1 to separate a second chamber on the rear side inside the installation cavity.

[0051] In the present invention, an intermediate partition 4 is provided inside the dehumidification device, dividing the dehumidification device into two chambers. The air supply assembly is fixed to the upper side of the front side plate surface of the intermediate partition 4 in the first chamber, and the electrical box and the variable frequency controller 3 inside it are fixed to the lower middle position of the back side plate surface of the intermediate partition 4. At the same time, a second ventilation structure 4-1 is opened on the intermediate partition 4 directly below the controller heat sink 6, and a first ventilation structure 1-1 is opened at a position slightly below the middle on the outside of the rear plate 1. When the fan operates, the main incoming air is condensed and dehumidified by the two devices, and part of the air enters the air duct 7 through the ventilation structures on the rear plate 1 and the intermediate partition 4 under the action of negative pressure to form air convection. The heat conducted by the variable frequency controller 3 to the first chamber through the heat sink 6 is directly carried away by the air flow entering from the second ventilation structure 4-1 of the intermediate partition 4 directly below it. The heat generated by power modules such as the choke coil and the DC fan control on the variable frequency controller 3 is radiated into the second chamber through the third ventilation structure 2-1 on the side wall of the electrical box cover 2 and the fourth ventilation structure 2-2 on the lower side, and is brought into the first chamber by the air flow entering from the first ventilation structure 1-1 of the rear plate 1 through the second ventilation structure 4-1, and finally discharged from the air outlet of the dehumidification device of the air duct 7. It should be noted that since a negative pressure is formed on the inlet side when the air supply assembly works, part of the air flow will also carry away part of the heat from the inside of the electrical box assembly when flowing through the third ventilation structure 2-1 to the fourth ventilation structure 2-2.

[0052] Preferably, the first ventilation structure 1-1 is provided on the rear plate 1, and the first ventilation structure 1-1 adopts a louver with an opening facing downward outside the rear plate 1; the installation position of the first ventilation structure 1-1 is higher than the installation position of the electrical box assembly. The third ventilation structure 2-1 adopts a louver with an opening facing downward outside the electrical box cover 2; the fourth ventilation structure 2-2 is a ventilation hole facing downward; among them, the installation position of the third ventilation structure 2-1 is higher than the installation position of the fourth ventilation structure 2-2. Preferably: the electrical box assembly is arranged at the lower part of the back side plate surface of the intermediate partition 4, and the installation position of the second ventilation structure 4-1 is lower than the installation position of the electrical box assembly.

[0053] In this embodiment, the air supply assembly includes: a centrifugal fan 8 and an air duct 7, etc. The centrifugal fan 8 is installed at the upper part of the front side plate surface of the intermediate partition 4, and the installation position of the centrifugal fan 8 is higher than the height of the heat dissipation end; the air duct 7, the air duct 7 is installed at the upper part of the front side plate surface of the intermediate partition 4, the inlet of the air duct 7 is connected to the outlet of the centrifugal fan 8, and the outlet of the air duct 7 is communicated with the outside of the dehumidification device.

[0054] It should be noted that in this embodiment, the dehumidifying device can be a dehumidifier or an air conditioner including the dehumidifying device. The dehumidifying device further includes: a compressor 5 disposed in the first chamber and in the ventilation flow path formed between the second air-permeable structure 4-1 and the inlet side of the air supply assembly; a heat exchanger 9 disposed on the front shell and located on the inlet side of the centrifugal fan 8, through which the moisture in the air can be condensed and liquefied; a water receiving tray located below the heat exchanger 9 for collecting the condensed water generated on the heat exchanger. By disposing components such as the compressor 5 in the first chamber, the ventilation flow path formed from the second air-permeable structure 4-1 to the inlet side of the air supply assembly can also dissipate heat from components such as the compressor 5.

[0055] To further illustrate the dehumidifying device in this embodiment, its specific working principle will be introduced in combination with a specific structure of the dehumidifying device.

[0056] In the present invention, an intermediate partition 4 is provided inside the dehumidification device, dividing the dehumidification device into two closed chambers. The part where the heat exchanger 9 is located is set as the first chamber, and the part sandwiched between the intermediate partition 4 and the rear plate 1 is the second chamber. The centrifugal fan 8 and the air duct 7 are fixed on the upper side of the intermediate partition 4 in the first chamber by screws and nuts, and the air blows upward through the air duct 7. The frequency conversion controller 3 in the electrical box is fixed on the wall surface of the second chamber corresponding to the intermediate partition 4 by screws, and is located at the middle position below the intermediate partition 4. The heat sink 6 for heat conduction of the frequency conversion controller 3 is fixed on the intermediate partition 4, and the heat dissipation end of the heat sink 6 is placed in the first chamber through the opening of the intermediate partition 4 (for the heat dissipation end to pass through here); at the same time, directly below the position of the heat sink 6 on the intermediate partition 4, a second air-permeable structure 4-1 with an upward inclination towards the first chamber is opened. Preferably, the second air-permeable structure 4-1 adopts a louver. A first air-permeable structure 1-1 with a downward direction is opened at a position slightly below the middle on the outer side of the rear plate 1. At the same time, a fourth air-permeable structure 2-2 is opened on the lower side of the electrical box cover 2 of the frequency conversion controller 3, and a third air-permeable structure 2-1 with a downward direction is opened at the rear side. When the fan operates, the main incoming air undergoes condensation dehumidification through the two heat exchanger components, and part of the air sequentially passes through the first air-permeable structure 1-1 of the rear plate 1 and the second air-permeable structure 4-1 on the intermediate partition 4 from the direction of the rear plate 1 and enters the air duct 7 to form air convection. The heat generated by the power module controlled by the compressor 5 on the frequency conversion controller 3 is conducted to the chamber 1 through the heat sink 6 and is directly carried away by the air flow entering from the second air-permeable structure 4-1 in the middle of the lower side of the intermediate partition. The heat generated by the power modules such as the choke coil and the DC fan control on the frequency conversion controller 3 is radiated into the second chamber through the fourth air-permeable structure 2-2 on the lower side of the electrical box cover 2 and the third air-permeable structure 2-1 at the rear side, and is brought into the first chamber by the air flow entering from the first air-permeable structure 1-1 of the rear plate and passing through the second air-permeable structure 4-1 of the intermediate partition, and finally dissipated from the air outlet of the air duct 7, incidentally dissipating heat from the compressor 5. Through the optimization of the positions of each structure, negative pressure air intake is used to quickly dissipate heat from the heat sink 6 and the power modules such as the choke coil and the DC fan control in the electrical control box at the same time. Since the corresponding positions of the rear plate 1 and the electrical box cover 2 use the downward first air-permeable structures 1-1 and 2-1, it is ensured that no media such as water and air will enter the electrical box to cause damage and corrosion to the components of the frequency conversion controller 3.

[0057] The above has specifically shown and described the exemplary embodiments of the present disclosure. It should be understood that the present disclosure is not limited to the detailed structures, arrangement manners 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 dehumidifying device for an air conditioner, characterized in that, the dehumidifying device comprises: a housing and an intermediate partition. The intermediate partition divides a first chamber and a second chamber inside the housing. The intermediate partition is provided with a second air-permeable structure communicating the first chamber and the second chamber; the housing is provided with a first air-permeable structure communicating the environment where the dehumidifying device is located with the second chamber; a blowing assembly. The blowing assembly is arranged in the first chamber. The blowing assembly comprises a centrifugal fan and an air duct. The centrifugal fan is installed on the upper part of the front side plate surface of the intermediate partition, the air duct is installed on the upper part of the front side plate surface of the intermediate partition, the inlet of the air duct is connected to the outlet of the centrifugal fan, and the outlet of the air duct is communicated with the outside of the dehumidifying device; an electric box assembly. The electric box assembly comprises an electric box. The electric box comprises a heat sink. The heat absorption end of the heat sink is located inside the electric box, the heat dissipation end of the heat sink penetrates through the intermediate partition and extends into the first chamber, and the heat dissipation end is in the ventilation flow path formed between the second air-permeable structure and the inlet side of the blowing assembly; the electric box is arranged in the second chamber; wherein when the blowing assembly works, a negative pressure is generated on the inlet side of the blowing assembly, so that external air is sucked to the inlet side of the air duct through the first air-permeable structure, the electric box, the second air-permeable structure and the heat dissipation end of the heat sink to form the ventilation flow path for dissipating heat from the electric box assembly.

2. The dehumidifying device according to claim 1, characterized in that, the electric box assembly further comprises an electric box cover, the electric box is fixed on the intermediate partition; the electric box cover is fixed on the electric box, and the electric box cover is provided with a third air-permeable structure and a fourth air-permeable structure at different position heights to form an air flow path from the third air-permeable structure to the fourth air-permeable structure inside the electric box assembly when dissipating heat from the electric box assembly.

3. The dehumidifying device according to claim 1, characterized in that, the housing comprises a front shell and a rear plate. The front shell and the rear plate cooperate to form an installation cavity; wherein the intermediate partition is arranged vertically in the installation cavity. The front side plate surface of the intermediate partition faces the front shell to divide the first chamber at the front side inside the installation cavity, and the back side plate surface of the intermediate partition faces the rear plate to divide the second chamber at the rear side inside the installation cavity.

4. The dehumidifying device according to claim 3, characterized in that, the first air-permeable structure is arranged on the rear plate, and the first air-permeable structure adopts a louver with an opening facing downward and outward of the rear plate.

5. The dehumidifying device according to claim 1, characterized in that, the installation position of the first air-permeable structure is higher than the installation position of the electric box assembly.

6. The dehumidifying device according to claim 2, characterized in that, the third air-permeable structure is arranged at the side plate of the electric box cover and adopts a louver with an opening facing downward and outward of the electric box cover; the fourth air-permeable structure is arranged at the bottom plate of the electric box cover and adopts a ventilation hole facing downward. The installation position of the third ventilation structure is higher than that of the fourth ventilation structure.

7. The dehumidifying device according to claim 1, wherein, the installation position of the centrifugal fan is higher than the height of the heat dissipation end.

8. The dehumidifying device according to claim 7, wherein, the dehumidifying device further comprises: a compressor, which is arranged in the first chamber and is in the ventilation flow path formed between the second ventilation structure and the inlet side of the air supply component; a heat exchanger, which is arranged on the front shell and is located on the inlet side of the centrifugal fan; a water receiving tray, which is located below the heat exchanger and is used for collecting the condensed water generated on the heat exchanger.

9. The dehumidifying device according to claim 7, wherein, the electrical box assembly is arranged at the lower part of the back side plate surface of the middle partition board, and the installation position of the second ventilation structure is lower than that of the electrical box assembly.

10. An air conditioner, wherein, the air conditioner comprises: the dehumidifying device according to any one of claims 1-9.

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