A clothes dryer

Abstract

The present invention discloses a dryer, which includes: a frame, arranged in a rectangular shape; under the action of an external force, the frame has a telescopic state; a blower, arranged at the bottom of the frame; a clothes cover, covering the frame; at one end close to the top of the frame, the clothes cover is provided with an exhaust part, and exhaust holes are arranged circumferentially on the exhaust part; the opening ratio of the exhaust holes in the exhaust part is 20%-60%. With such a setting, when the opening ratio is 20%-60%, it can ensure that the heat flow inside the clothes cover reaches full circulation, accelerate the discharge of evaporated water vapor, and prevent the situation that the clothes in some areas cannot be dried due to insufficient heat inside the clothes cover caused by the too large volume of the clothes cover. Thereby, the drying time can be reduced and the drying efficiency can be improved. At the same time, it can also prevent the heat flow from being completely discharged and the heat flow inside the clothes cover from being lost.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes dryers, and particularly to a clothes dryer. Background Art

[0002] As a product that is convenient for drying clothes and has a high cost performance, clothes dryers are becoming more and more popular in the market. However, the disadvantages of traditional clothes dryer products, such as large volume, inconvenient storage, and occupying a lot of space, are becoming increasingly prominent. Therefore, a folding clothes dryer has emerged in the market.

[0003] However, with the upgrading of consumption and the improvement of people's living standards, certain requirements for the drying efficiency of clothes dryers have also been put forward. In the prior art, the drying efficiency of a clothes dryer is usually related to the outlet air temperature and the air volume, and the outlet air temperature is mainly affected by the power of the heating element, and the air volume is mainly affected by the rotational speed of the air impeller and the blade profile of the air impeller. However, because the clothes to be dried have requirements for the drying temperature, the outlet air temperature needs to be less than 100 °C to prevent damage to the clothes, and increasing the rotational speed of the air impeller or adjusting the blade profile of the air impeller will increase the overall cost of the machine.

[0004] Therefore, there is a need for a clothes dryer that can improve the drying efficiency at present. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is the problem of low drying efficiency of the clothes dryer existing in the prior art, so as to provide a clothes dryer.

[0006] To achieve the above object, an embodiment of the present invention provides a clothes dryer, which includes: a frame, arranged in a rectangular body shape; under the action of an external force, the frame has a retractable state; a blower, arranged at the bottom of the frame; a clothes cover, covering the frame; at one end close to the top of the frame, the clothes cover is provided with an exhaust part, and exhaust holes are arranged in the circumferential direction of the exhaust part; the opening ratio of the exhaust holes in the exhaust part is 20%-60%.

[0007] Optionally, the clothes dryer further includes: an elastic member, arranged on the exhaust part, and the bottom of the clothes cover is adapted to be fixed to the bottom of the frame; under the elastic force of the elastic member, the exhaust part expands and contracts with the frame.

[0008] Optionally, the clothes dryer further includes: a closing part, arranged on the exhaust part; when the exhaust part expands and contracts, the closing part is adapted to open and close the exhaust holes to keep the opening ratio unchanged.

[0009] Optionally, the elastic member is arranged along the stretching direction of the frame.

[0010] Optionally, a plurality of the elastic members are respectively arranged in the circumferential direction of the exhaust part.

[0011] Optionally, the elastic member corresponds to the side edges of the frame.

[0012] Optionally, the diameter of the exhaust hole is between 5 mm and 30 mm.

[0013] Optionally, the number of the exhaust holes is between 4 and 20.

[0014] Optionally, the area of the exhaust part is between 5000 mm2 and 8000 mm2.

[0015] Optionally, the dryer further includes: a base connected to the bottom of the frame, and the blower is arranged in the base.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] 1. An embodiment of the present invention provides a dryer, which includes: a frame arranged in a rectangular shape; under an external force, the frame has a telescopic state; a blower arranged at the bottom of the frame; a clothes cover covering the frame; at one end close to the top of the frame, the clothes cover is provided with an exhaust part, and exhaust holes are arranged circumferentially on the exhaust part; the opening ratio of the exhaust holes in the exhaust part is 20%-60%.

[0018] With such a setting, when the opening ratio is 20%-60%, it can ensure that the heat flow inside the clothes cover reaches a full cycle, accelerate the discharge of evaporated water vapor, and prevent the situation that some areas of the clothes cannot be dried due to insufficient heat inside the clothes cover caused by the too large volume of the clothes cover. Thereby, the drying time can be reduced and the drying efficiency can be improved. At the same time, it can also prevent the heat flow from being completely discharged and the heat flow inside the clothes cover from being dissipated.

[0019] 2. Through the technical solution of "an elastic member is arranged on the exhaust part, the bottom of the clothes cover is adapted to be fixed to the bottom of the frame; under the elastic force of the elastic member, the exhaust part expands and contracts as the frame expands and contracts", when the elastic member is in a contracted state, the exhaust part also completely contracts, so that when the user adjusts the height of the frame, the expansion degree of the exhaust part can be adjusted through the elastic member, so that the clothes cover can match the height of the frame, ensure that the side of the clothes cover is in a vertical state, and further ensure that the heat flow inside the clothes cover reaches a full cycle and improve the drying efficiency.

[0020] 3. When the user adjusts the actual height of the frame, if the user's demand for the frame is low, the user can reduce the stretching height of the frame. In the embodiment of the present invention, through the technical solution of "a closing part is arranged on the exhaust part; when the exhaust part expands and contracts, the closing part is adapted to open and close the exhaust holes so that the opening ratio remains unchanged", since the opening ratio remains unchanged, the exhaust efficiency of the exhaust part will not be affected, and the heat flow inside the clothes cover can be fully circulated, improving the clothes drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are 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.

[0022] Figure 1 It is a schematic diagram of the overall structure of the clothes dryer according to the embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the clothes dryer after contraction according to the embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the fully extended clothes dryer according to the embodiment of the present invention.

[0025] Reference numerals:

[0026] 1. Clothes cover; 2. Exhaust part; 3. Elastic member; 4. Exhaust hole; 5. Frame; 6. Fan; 7. Air outlet; 8. Air inlet; 9. Air duct; 10. Base; 11. Zipper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may also be the communication inside two elements. It may be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] As a product with convenient drying and high cost performance, the clothes dryer is becoming more and more popular in the market. However, the traditional clothes dryer products have increasingly prominent disadvantages such as large volume, inconvenient storage, and occupying space. Therefore, a folding clothes dryer appears in the market.

[0032] However, with the consumption upgrade and the improvement of people's living standards, certain requirements for the drying efficiency of the clothes dryer are also put forward. In the prior art, the drying efficiency of the clothes dryer is usually related to the outlet air temperature and the air volume, and the outlet air temperature is mainly affected by the power of the heating element, and the air volume is mainly affected by the wind wheel speed and the blade profile. However, due to the requirements of the clothes to be dried for the drying temperature, the outlet air temperature needs to be less than 100 °C to prevent damage to the clothes, and increasing the wind wheel speed or adjusting the blade profile will increase the overall cost of the machine.

[0033] Therefore, there is a need for a clothes dryer that can improve the drying efficiency at present.

[0034] Embodiment 1

[0035] As Figures 1 to 3 shown, the embodiment of the present invention provides a clothes dryer, which includes: a frame 5, a blower 6, and a clothes cover 1.

[0036] Specifically, in the embodiments of the present invention, the frame 5 is arranged in a rectangular parallelepiped shape, and under the action of an external force, the frame 5 has a telescopic state. As Figure 1 shown, the frame 5 can be composed of a square box at the top and clothes poles arranged at the four corners of the square box. The clothes poles are telescopic structures, which can be telescopic rods, and the telescopic rods have several ways to adjust the telescopic height. When the user uses the clothes dryer, the overall height of the frame 5 can be adjusted by adjusting the length of the telescopic rod.

[0037] Of course, those skilled in the art can select the type of telescopic rod according to the actual situation. The length of the telescopic rod can be adjusted manually by the user, and the telescopic rod can also be an electrically telescopic rod, which can be directly driven by electricity. This embodiment is only an example, but it is not limited, as long as the same technical effect can be achieved.

[0038] Further, the blower 6 is arranged at the bottom of the frame 5 and is used to provide hot air for drying wet clothes into the clothes cover 1. The clothes cover 1 covers the frame 5. At one end close to the top of the frame 5, the clothes cover 1 is provided with an exhaust part 2. The circumferential direction of the exhaust part 2 is provided with exhaust holes 4, and the opening rate of the exhaust holes 4 in the exhaust part 2 is 20%-60%. The exhaust holes 4 are preferably designed as round holes, and the round holes can effectively disperse the concentrated heat flow. As Figure 1 shown by the arrow direction in, the arrow direction is the flow direction of the heat flow, which can avoid local heat concentration inside the clothes cover 1. The round holes are also convenient for processing, production, and later assembly, and are usually designed at the top of the clothes cover 1 or the upper part of the back of the clothes cover 1, so that the heat flow can be discharged in time after circulation. The definition of the opening rate δ is the area of the exhaust part 2 / the area of the region of the exhaust holes 4, and the formula is as follows:

[0039]

[0040] wherein, φ is the diameter of the exhaust holes 4, N is the number of the exhaust holes 4, and S is the area of the exhaust part 2.

[0041] The side of the clothes cover 1 is provided with an opening, and a zipper 11 is arranged at the opening. The user can open the opening through the zipper 11, so as to put the clothes to be dried into the clothes cover 1.

[0042] With such a setting, when the opening rate is 20%-60%, it can ensure that the heat flow inside the clothes cover 1 reaches a full circulation, accelerate the discharge of the evaporated water vapor, and will not cause the situation that some areas of the clothes cannot be dried due to insufficient heat inside the clothes cover 1 caused by the too large volume of the clothes cover 1. Thus, the drying time can be reduced and the drying efficiency can be improved. At the same time, it can also avoid the heat flow being completely discharged and the heat flow inside the clothes cover 1 being lost.

[0043] Further, in an alternative embodiment of the present invention, the dryer further includes an elastic member 3 disposed on the exhaust portion 2, and the bottom of the clothing cover 1 is adapted to be fixed to the bottom of the frame 5; under the elastic force of the elastic member 3, the exhaust portion 2 expands and contracts as the frame 5 expands and contracts. Specifically, the elastic member 3 can be arranged along the stretching direction of the frame 5. As Figure 1 shown, a plurality of the elastic members 3 are respectively disposed in the circumferential direction of the exhaust portion 2, and the elastic members 3 correspond to the side edges of the frame 5.

[0044] In the embodiment of the present invention, through the above embodiment, when the elastic member 3 is in a contracted state, the exhaust portion 2 is also completely contracted, so that when the user adjusts the height of the frame 5, the expansion degree of the exhaust portion 2 can be adjusted through the elastic member 3, so that the clothing cover 1 can match the height of the frame 5, ensuring that the side surface of the clothing cover 1 is in a vertical state, and further ensuring that the heat flow inside the clothing cover 1 reaches a sufficient circulation, improving the drying efficiency.

[0045] Optionally, the dryer further includes a closing portion disposed on the exhaust portion 2. When the exhaust portion 2 expands and contracts, the closing portion is adapted to open and close the exhaust holes 4, so that the opening ratio remains unchanged.

[0046] Specifically, in the embodiment of the present invention, the elastic member 3 can be an elastic band. As Figure 1 shown, elastic bands can be designed along the four sides of the upper half of the clothing cover 1 in the vertical direction, and multiple rows of exhaust holes 4 can be designed on the back or side of the clothing cover 1. The material of the clothing cover 1 can be cloth, and it can be folded at will like folding clothes. Because the material of the clothing cover 1 is cloth, the shape cannot be guaranteed, but the shape of the clothing cover 1 can be supported by the frame formed by the square frame at the top of the clothing cover 1 and the telescopic rods on both sides. Affected by the elastic force of the elastic band, when the telescopic rod is expanded to the maximum state, the elastic band is also stretched to the maximum length, and at this time all the exhaust holes 4 are in an open state, and the exhaust area is the largest. When the telescopic rod is compressed by a part, at this time the height of the clothing cover 1 also decreases by the corresponding height under the elastic force of the elastic band, and the elastic band will fold a section of the clothing cover 1, and the folded part acts as a closing portion and exactly can block a row of exhaust holes 4. Every time the telescopic rod is lowered by a section, the clothing cover 1 will block a row of exhaust holes 4, so that the opening ratio remains unchanged.

[0047] When the user adjusts the actual height of the frame 5, if the user has a lower requirement for the frame 5, then the user can reduce the stretching height of the frame 5. In the embodiment of the present invention, through the above technical solution, since the opening ratio remains unchanged, the exhaust efficiency of the exhaust portion 2 is not affected, and the heat flow inside the clothing cover 1 can be ensured to reach a sufficient circulation, improving the drying efficiency.

[0048] Further, in an alternative embodiment of the present invention, the diameter of the exhaust hole 4 is between 5 mm and 30 mm. The number of the exhaust holes 4 is between 4 and 20. The area of the exhaust part 2 is between 5000 mm 2 and 8000 mm 2 . Within this parameter range, the highest opening rate can be ensured, so that the drying efficiency of the dryer is optimal.

[0049] Meanwhile, in a specific embodiment of the present invention, the dryer may further include a base 10, the base 10 is connected to the bottom of the frame 5, and the fan 6 is arranged in the base 10. An air inlet 8, an air outlet 7 and an air duct 9 are arranged in the base 10.

[0050] In addition, with the increasing housing pressure, the miniaturized design of household appliances is becoming more and more popular; for a dryer, if the volume is too large, the drying effect is poor, if the volume is small, the capacity is insufficient and the number of dried clothes is limited; the drying efficiency η is related to the volume and the opening rate

[0051] ν = L1 × L2 × H;

[0052]

[0053] К: constant

[0054] ν: the volume of the clothes cover 1, unit mm3

[0055] L1: the length of the clothes cover 1, unit mm

[0056] L2: the width of the clothes cover 1, unit mm

[0057] H: the height of the clothes cover 1, unit mm

[0058] To reasonably layout the overall volume of the machine, the design range of the length of the clothes cover 1 is 200 mm ≤ L1 ≤ 800 mm, the design range of the width is 200 mm ≤ L2 ≤ 600 mm, and the design range of the height is 800 mm ≤ H ≤ 1800 mm.

[0059] Of course, those skilled in the art can adjust the overall volume of the machine according to the actual situation. This embodiment is only for illustration and is not restrictive, as long as the same technical effect can be achieved.

[0060] Obviously, the above embodiments are only examples for clear illustration and are not limitations on the implementation manners. For ordinary workers in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A dryer, characterized in that, Including: A frame (5), arranged in a rectangular shape; under the action of an external force, the frame (5) has a telescopic state; A fan (6), arranged at the bottom of the frame (5); A clothing cover (1), covering the frame (5); at one end near the top of the frame (5), the clothing cover (1) is provided with an exhaust part (2), and exhaust holes (4) are arranged circumferentially on the exhaust part (2); The opening ratio of the exhaust holes (4) on the exhaust part (2) is 20%-60%; An elastic member (3), arranged on the exhaust part (2), and the bottom of the clothing cover (1) is suitable for being fixed to the bottom of the frame (5); under the elastic force of the elastic member (3), the exhaust part (2) expands and contracts along with the expansion and contraction of the frame (5); A closing part, arranged on the exhaust part (2); when the exhaust part (2) expands and contracts, the closing part is suitable for opening and closing the exhaust holes (4) to keep the opening ratio unchanged; The elastic member (3) is an elastic band, and multiple rows of exhaust holes (4) are designed on the back or side of the clothing cover (1). When the telescopic rod is compressed by a part, the elastic band will fold a section of the clothing cover (1), and the folded part acts as the closing part and can just block a row of exhaust holes (4).

2. The dryer according to claim 1, characterized in that, The elastic member (3) is arranged along the stretching direction of the frame (5).

3. The dryer according to claim 2, characterized in that, Multiple elastic members (3) are respectively arranged circumferentially on the exhaust part (2).

4. The dryer according to claim 3, characterized in that, The elastic member (3) corresponds to the side edge of the frame (5).

5. The dryer according to any one of claims 1 to 4, characterized in that, The diameter of the exhaust holes (4) is between 5 mm and 30 mm.

6. The dryer according to any one of claims 1 to 4, characterized in that, The number of the exhaust holes (4) is between 4 and 20.

7. The dryer according to any one of claims 1 to 4, characterized in that, The area of the exhaust part (2) is between 5000 mm 2 and 8000 mm 2 .

8. The dryer according to any one of claims 1 to 4, characterized in that, Further including: A base (10), connected to the bottom of the frame (5), and the fan (6) is arranged in the base (10).

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