Drying equipment

Abstract

The utility model relates to the technical field of clothes processing equipment, in particular to drying equipment, and aims to solve the problem that existing drying equipment is low in drying efficiency. Therefore, the drying equipment comprises a drying cylinder, a heat pump module, an air duct and a bypass air duct installed in the air duct, the two ends of the air duct are communicated with an air inlet and an air outlet of the drying cylinder respectively, and an evaporator and a condenser of the heat pump module are installed in the air duct. The bypass air duct communicated with the outside of the air duct is arranged in the air duct, in the operation process of the evaporator, the temperature of the evaporator is continuously increased or even higher than the external temperature, and the condensation efficiency of the evaporator is reduced; and the temperature of the bypass air duct communicated with the outside is lower than that of the evaporator, so that a cold source is increased for the drying equipment, the workload of the evaporator is shared, the condensation efficiency of the evaporator is improved, and the drying efficiency of the drying equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing treatment equipment, and particularly provides a drying device. Background Art

[0002] With the improvement of people's living standards, clothes dryers have gradually become one of the indispensable household appliances in people's daily lives.

[0003] Most of the existing clothes dryers dry clothes by setting a heat pump system in the air duct. The hot air circulates in the drying cylinder and the air duct to take out the humid air in the drying cylinder, and then condenses the water vapor in the humid air through the evaporator of the heat pump system, so as to achieve the effect of drying clothes. During the drying process, the working load of the evaporator gradually increases, the temperature of the evaporator gradually rises and is higher than the external environment temperature, resulting in a decrease in the condensation efficiency of the evaporator, a decrease in the drying efficiency of the clothes dryer, an extension of the drying time, and an impact on the user experience.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Utility Model

[0005] The utility model aims to solve the above technical problems, that is, to solve the problem of low drying efficiency of the existing drying equipment.

[0006] In a first aspect, the utility model provides a drying device, including a drying cylinder, a heat pump module, an air duct and a bypass air duct installed in the air duct. The two ends of the air duct are respectively communicated with the air inlet and the air outlet of the drying cylinder. The heat pump module includes an evaporator and a condenser arranged in the air duct. The air duct is provided with a first opening and a second opening. The two ends of the bypass air duct are respectively communicated with the first opening and the second opening. The bypass air duct is located upstream of the condenser.

[0007] In the case of adopting the above technical solution, the utility model increases a cold source for the drying device by setting a bypass air duct communicated with the external environment of the air duct and arranging the bypass air duct upstream of the condenser. During the operation of the evaporator, the temperature of the evaporator continuously rises and is even higher than the external environment temperature, the working load of the evaporator increases, and the condensation efficiency of the evaporator decreases. The temperature of the bypass air duct communicated with the external environment is lower than the temperature of the evaporator, thus sharing the working load of the evaporator and improving the condensation efficiency of the evaporator, and further improving the drying efficiency of the drying device.

[0008] In a preferred technical solution of the above drying device, the drying device further includes a fan, and the fan can make the air flow in the bypass air duct flow along its length direction.

[0009] In the case of adopting the above technical solution, the utility model enables the air flow in the bypass air duct by setting a blower, and the temperature of the bypass air duct can be reduced by the air flow, thereby further improving the condensation efficiency of the drying equipment.

[0010] In a preferred technical solution of the above drying equipment, the drying equipment further includes fins, and the fins are installed in the bypass air duct.

[0011] In the case of adopting the above technical solution, by installing fins in the bypass air duct, the utility model can increase the contact area between the bypass air duct and the flowing air, thereby further reducing the temperature of the bypass air duct.

[0012] In a preferred technical solution of the above drying equipment, the number of the fins is multiple, and the multiple fins are spaced apart along the length direction of the bypass air duct.

[0013] In the case of adopting the above technical solution, by arranging multiple fins spaced apart along the length direction of the bypass air duct in the bypass air duct, the utility model further increases the contact area between the bypass air duct and the wind, thereby being able to further reduce the temperature of the bypass air duct.

[0014] In a preferred technical solution of the above drying equipment, the bypass air duct is installed above the evaporator.

[0015] In the case of adopting the above technical solution, by installing the bypass air duct above the evaporator, the utility model can not only save the space in the air duct without blocking the air flow, but also improve the overall condensation efficiency of the evaporator and the bypass air duct when arranged side by side.

[0016] In a preferred technical solution of the above drying equipment, the drying equipment further includes a first water receiving tray, and the first water receiving tray is installed in the air duct and below the bypass air duct; and / or the drying equipment further includes a second water receiving tray, and the second water receiving tray is installed in the air duct and below the evaporator.

[0017] In the case of adopting the above technical solution, by installing the first water receiving tray below the bypass air duct, the utility model can collect the condensed water dripping from the bypass air duct, prevent the condensed water from dripping onto the evaporator, thereby affecting the condensation efficiency of the evaporator. By setting the second water receiving tray below the evaporator, the condensed water generated by the contact between the humid hot air and the evaporator can be collected on the water receiving tray, thereby avoiding the condensed water flowing into the air duct and affecting the drying efficiency of the drying equipment.

[0018] In a preferred technical solution of the above drying equipment, the first water receiving tray has a drain outlet and the first water receiving tray is inclined towards the drain outlet of the first water receiving tray.

[0019] In the case of adopting the above technical solution, for the present utility model, by inclining the first water receiving tray towards the drain outlet of the first water receiving tray, the water in the first water receiving tray can be collected at the drain outlet, facilitating the discharge of condensed water.

[0020] In a preferred technical solution of the above drying device, the drying device further includes a drain pipe, one end of the drain pipe is communicated with the drain outlet of the first water receiving tray, and the other end of the drain pipe is arranged towards the second water receiving tray to drain the water in the first water receiving tray to the second water receiving tray; and / or the drying device further includes a drain pump, one end of the drain pump is communicated with the second water receiving tray, and the other end of the drain pump is communicated with the water tank of the drying device.

[0021] In the case of adopting the above technical solution, for the present utility model, by providing a drain pipe communicated with the drain outlet of the first water receiving tray, the condensed water in the first water receiving tray can be discharged into the second water receiving tray, avoiding excessive accumulation and overflow of the condensed water in the first water receiving tray. By providing a drain pump, the condensed water in the second water receiving tray can be pumped into the water tank, so that the condensed water can be recycled, avoiding waste of water resources.

[0022] In a preferred technical solution of the above drying device, the first opening and the second opening are respectively arranged on two opposite side walls of the air duct.

[0023] In the case of adopting the above technical solution, for the present utility model, by respectively arranging the first opening and the second opening on two opposite side walls of the air duct, the structural form is simple, convenient for installation, and conducive to the flow of air in the bypass air duct.

[0024] In a preferred technical solution of the above drying device, the drying device is a clothes dryer, a washing and drying integrated machine or a garment care machine. Description of the Drawings

[0025] The following describes the preferred embodiments of the present utility model with reference to the drawings, in which:

[0026] Figure 1 is a schematic structural diagram of the drying device of the present utility model;

[0027] Figure 2 is Figure 1 an enlarged view of part A in

[0028] Figure 3 is Figure 2 a cross-sectional view taken along line B-B in

[0029] List of Reference Numerals:

[0030] 1, drying cylinder; 11, air inlet; 12, air outlet;

[0031] 21. Evaporator; 22. Condenser;

[0032] 31. Air duct; 32. By-pass air duct;

[0033] 41. First water receiving tray; 42. Second water receiving tray;

[0034] 5. Drain pipe;

[0035] 6. Fins;

[0036] 7. Fan. Detailed implementation manners

[0037] The preferred implementation manners of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model. For example, although the following embodiments are described in conjunction with a dryer, the technical solution of the present utility model can also be applied to other drying devices, such as a washing and drying integrated machine, a clothing care machine, etc. Such adjustments and changes to the application object do not deviate from the principle and scope of the present utility model and should be limited within the protection scope of the present utility model.

[0038] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "inner", "outer", "upper", "lower", "top", "bottom", "left", "right", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "connected", "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] Based on the problem of low drying efficiency of existing drying equipment pointed out in the background art, the present utility model provides a dryer, aiming to increase the cold source for the drying equipment and share the working load of the evaporator by providing a bypass air duct communicating with the external environment of the air duct inside the air duct. During the operation of the evaporator, the temperature of the evaporator continuously rises and even exceeds the external environment temperature, resulting in a decrease in the condensation efficiency of the evaporator. The temperature of the bypass air duct communicating with the external environment is lower than that of the evaporator, thereby improving the condensation efficiency of the evaporator and further enhancing the drying efficiency of the drying equipment.

[0041] Specifically, first refer to Figures 1 to 3 , Figure 1 which is a schematic structural diagram of the drying equipment of the present utility model, Figure 2 and Figure 1 is an enlarged view of part A in Figure 3 and Figure 2 is a cross-sectional view taken along line B-B in

[0042] As Figures 1 to 3 shown, the drying equipment of the present utility model includes a drying cylinder 1, a heat pump module, an air duct 31, and a bypass air duct 32 installed inside the air duct 31. The two ends of the air duct 31 are respectively communicated with the air inlet 11 and the air outlet 12 of the drying cylinder 1. The evaporator 21 and the condenser 22 of the heat pump module are installed inside the air duct 31. A first opening (not shown in the figure) and a second opening (not shown in the figure) are respectively provided on the left and right sides of the air duct 31 along the air flow direction. The two ends of the bypass air duct 32 are respectively communicated with the first opening and the second opening, and the bypass air duct 32 is located upstream of the condenser 22.

[0043] Exemplarily, as Figures 1 to 3 shown, the present invention provides a dryer, which includes a drying cylinder 1, a heat pump module, an air duct 31, and a bypass air duct 32 installed inside the air duct 31. The drying cylinder 1 is used to hold the clothes to be dried. The air duct 31 is arranged below the drying cylinder 1. The left and right ends of the air duct 31 are respectively communicated with the air outlet 12 and the air inlet 11 of the drying cylinder 1. The evaporator 21 and the condenser 22 are both installed inside the air duct 31, and the evaporator 21 is located upstream of the condenser 22. The evaporator 21 can condense the humid and hot air flowing through it. The humid and hot air in the drying cylinder 1 enters the air duct 31 through the air outlet 12. The humid and hot air fully contacts the evaporator 21 in the air duct 31 and is condensed, and then flows through the condenser 22 for heating to become dry and hot air. The dry and hot air finally enters the drying cylinder 1 through the air inlet 11, takes away the water vapor generated by the clothes, and enters the air duct 31 again, thereby forming a circulating air flow to dry the clothes and achieving the effect of drying the clothes.

[0044] During the drying process, the working load of the evaporator 21 gradually increases, the temperature of the evaporator 21 gradually rises and is higher than the external ambient temperature, resulting in a decrease in the condensation efficiency of the evaporator 21.

[0045] Exemplarily, first openings and second openings are respectively provided on two opposite side walls of the air duct 31. Both ends of the bypass air duct 32 are communicated with the first opening and the second opening respectively. That is to say, the bypass air duct 32 is communicated with the external environment of the air duct 31 through the first opening and the second opening. The bypass air duct 32 is installed in the air duct 31 perpendicular to the length direction of the air duct 31. The bypass air duct 32 is installed upstream of the condenser 22. By providing the bypass air duct 32 communicated with the external environment of the air duct 31 in the air duct 31, during the operation of the evaporator 21, the temperature of the evaporator 21 continuously rises and is even higher than the external ambient temperature, and the condensation efficiency of the evaporator 21 decreases. The temperature of the bypass air duct 32 communicated with the external environment is lower than the temperature of the evaporator 21, and is even lower than the temperature of the humid and hot air in the air duct 31. Thus, a cold source is added to the dryer, sharing the working load of the evaporator 21, enabling the temperature of the evaporator 21 to be reduced to the optimal working temperature, improving the condensation efficiency of the evaporator 21, and further improving the drying efficiency of the dryer.

[0046] It should be noted that the present utility model does not limit the installation position of the bypass air duct 32. For example, those skilled in the art can set the bypass air duct 32 between the evaporator 21 and the condenser 22, or set the bypass air duct 32 upstream of the evaporator 21, or can also arrange the evaporator 21 and the bypass air duct 32 side by side vertically, etc. Such adjustments and changes to the specific installation position of the bypass air duct 32 do not deviate from the principle and scope of the present utility model and should all be limited within the protection scope of the present utility model.

[0047] It should also be noted that the present utility model does not limit the setting positions of the first opening and the second opening. For example, those skilled in the art can set the first opening and the second opening on the same side wall of the air duct 31, or set the first opening and the second opening on the side wall and the bottom wall of the air duct 31 respectively, etc. Such adjustments and changes to the specific setting positions of the first opening and the second opening do not deviate from the principle and scope of the present utility model and should all be limited within the protection scope of the present utility model.

[0048] Preferably, as Figure 3 shown, the first opening and the second opening of the present utility model are respectively provided on two opposite side walls of the air duct 31.

[0049] Exemplarily, as Figure 3As shown, the first opening and the second opening are respectively arranged on two relatively left and right side walls along the air flow direction in the air duct 31. Such an arrangement has a simple structural form, is convenient for installation, and is beneficial to the air flow in the bypass air duct 32.

[0050] Preferably, as Figure 3 shown, the dryer of the present invention further includes a fan 7, and the fan 7 can make the air flow in the bypass air duct 32 flow along its length direction.

[0051] Exemplarily, as Figure 3 shown, the fan 7 of the present invention is installed at one end of the bypass air duct 32, and can dissipate heat from the bypass air duct 32 by blowing air, thereby reducing the temperature of the bypass air duct 32 and improving the condensation efficiency of the bypass air duct 32.

[0052] It should be noted that the present invention does not limit the installation position of the fan 7. For example, those skilled in the art can also install the fan 7 inside the bypass air duct 32, or install the fan 7 outside the bypass air duct 32, etc. Such adjustments and changes to the specific installation position of the fan 7 do not deviate from the principle and scope of the present invention, and should all be limited within the protection scope of the present invention.

[0053] Preferably, as Figure 3 shown, the dryer of the present invention further includes fins 6, and the fins 6 are installed in the bypass air duct 32.

[0054] Exemplarily, as Figure 3 shown, the fins 6 of the present invention are installed in the bypass air duct 32 along the vertical direction, and the fins 6 are arranged along the air flow direction. By installing the fins 6 in the bypass air duct 32, the contact area between the bypass air duct 32 and the flowing air can be increased. When the fan 7 is turned on, the external ambient air enters the bypass air duct 32 and contacts the fins 6 and the side wall of the bypass air duct 32, taking away the heat in the bypass air duct 32, thereby being able to quickly reduce the temperature of the bypass air duct 32 and further improving the condensation efficiency of the bypass air duct 32.

[0055] Preferably, as Figure 3 shown, the number of the fins 6 of the present invention is multiple, and the multiple fins 6 are spaced apart along the length direction of the bypass air duct 32.

[0056] Exemplarily, as Figure 3 shown, 4 fins 6 are spaced apart in the bypass air duct 32 of the present invention.

[0057] It should be noted that the present utility model does not limit the number of fins 6 provided. For example, those skilled in the art can also set the number of fins 6 to 6 or 8, or multiple fins 6 in a cross form can be arranged at intervals in the bypass air duct 32, etc. As long as the temperature of the bypass air duct 32 can be reduced without blocking the air flow, such adjustments and changes to the specific number of fins 6 do not deviate from the principle and scope of the present utility model and should all be limited within the protection scope of the present utility model.

[0058] Preferably, as Figures 1 to 3 shown, the bypass air duct 32 of the present utility model is installed above the evaporator 21.

[0059] Exemplarily, as Figures 1 to 3 shown, the bypass air duct 32 of the present utility model is arranged above the evaporator 21 and is arranged close to the top wall of the air duct 31. That is to say, the bypass air duct 32 and the evaporator 21 are arranged side by side in the vertical direction. Such an arrangement can not only save the space in the air duct 31 and not block the air flow, but also improve the overall condensation efficiency of the evaporator 21 and the bypass air duct 32.

[0060] Preferably, as Figures 1 to 3 shown, the dryer of the present utility model further includes a first water receiving tray 41, and the first water receiving tray 41 is installed in the air duct 31 and is located below the bypass air duct 32.

[0061] Exemplarily, as Figures 1 to 3 shown, the first water receiving tray 41 of the present utility model is installed directly below the bypass air duct 32. The first water receiving tray 41 can collect the condensed water dripping from the bypass air duct 32, avoiding the condensed water directly dripping onto the evaporator 21, thereby affecting the condensation efficiency of the evaporator 21.

[0062] Preferably, as Figures 1 to 3 shown, the dryer of the present utility model further includes a second water receiving tray 42, and the second water receiving tray 42 is installed in the air duct 31 and is located below the evaporator 21.

[0063] Exemplarily, as Figures 1 to 3 shown, the second water receiving tray 42 of the present utility model is installed directly below the evaporator 21. The second water receiving tray 42 can collect the condensed water dripping from the evaporator 21, thereby avoiding the condensed water flowing into the air duct 31 and affecting the drying efficiency of the dryer.

[0064] Preferably, as Figures 1 to 3 shown, the first water receiving tray 41 of the present utility model has a drain port and the first water receiving tray 41 is inclined towards the drain port of the first water receiving tray 41.

[0065] Exemplarily, the drain outlet of the first water receiving tray 41 is provided at the edge of the bottom of the first water receiving tray 41, and the first water receiving tray 41 is inclined towards the drain outlet to facilitate the discharge of condensed water.

[0066] Preferably, as Figure 1 and Figure 2 shown, the dryer of the present utility model further includes a drain pipe 5. One end of the drain pipe 5 is communicated with the drain outlet of the first water receiving tray 41, and the other end of the drain pipe 5 is arranged towards the second water receiving tray 42 to drain the water in the first water receiving tray 41 into the second water receiving tray 42.

[0067] Exemplarily, as Figure 1 and Figure 2 shown, the drain pipe 5 of the present utility model is arranged in the vertical direction. The top end of the drain pipe 5 is communicated with the drain outlet of the first water receiving tray 41, and the bottom end of the drain pipe 5 is inserted into the second water receiving tray 42. The condensed water in the first water receiving tray 41 is discharged into the second water receiving tray 42 through the drain pipe 5, avoiding excessive accumulation of condensed water in the first water receiving tray 41 and causing overflow.

[0068] Preferably, the dryer of the present utility model further includes a drain pump (not shown in the figure). One end of the drain pump is communicated with the second water receiving tray 42, and the other end of the drain pump is communicated with the water tank of the dryer.

[0069] Exemplarily, both ends of the drain pump of the present utility model are respectively communicated with the second water receiving tray 42 and the water tank of the dryer through water pipes. The drain pump can pump the condensed water in the second water receiving tray 42 into the water tank, so that the condensed water can be recycled and the waste of water resources is avoided.

[0070] Those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims of this application, any one of the claimed embodiments can be used in any combination.

[0071] So far, the technical solution of the present utility model has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present utility model.

Claims

1. A drying device, characterized in that: include: A drying cylinder, a heat pump module, an air duct, and a bypass air duct installed in the air duct, the two ends of the air duct are respectively connected to the air inlet and the air outlet of the drying cylinder, the heat pump module includes an evaporator and a condenser arranged in the air duct, the air duct is provided with a first opening and a second opening, the two ends of the bypass air duct are respectively connected to the first opening and the second opening, and the bypass air duct is located upstream of the condenser.

2. The drying device according to claim 1, characterized in that: The drying device further comprises a fan, which can make the airflow in the bypass air duct flow along the length direction thereof.

3. The drying device according to claim 1, characterized in that: The drying device further comprises fins, and the fins are installed in the bypass air duct.

4. The drying device according to claim 3, characterized in that: There are multiple fins, and the multiple fins are spaced apart along the length direction of the bypass air duct.

5. The drying device according to claim 1, characterized in that: The bypass air duct is installed above the evaporator.

6. The drying device according to claim 5, characterized in that: The drying device further comprises a first water receiving tray, which is installed in the air duct and located below the bypass air duct; and / or The drying device further includes a second water receiving tray, which is installed in the air duct and located below the evaporator.

7. The drying device according to claim 6, characterized in that: The first water receiving tray has a drain port, and the first water receiving tray is inclined toward the drain port of the first water receiving tray.

8. The drying device according to claim 7, characterized in that: The drying device further comprises a drain pipe, one end of which is connected to a drain port of the first water receiving tray, and the other end of which is disposed toward the second water receiving tray to drain water in the first water receiving tray to the second water receiving tray; and / or The drying device further includes a drainage pump, one end of which is communicated with the second water receiving tray, and the other end of which is communicated with the water tank of the drying device.

9. The drying device according to any one of claims 1 to 8, characterized in that: The first opening and the second opening are respectively arranged on two opposite side walls of the air duct.

10. The drying device according to any one of claims 1 to 9, characterized in that: The drying device is a clothes dryer, a washer-dryer or a clothing care machine.

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