Clothes dryer and clothes dryer control method

Abstract

The invention relates to the technical field of household appliances, and discloses a clothes dryer and a clothes dryer control method, and the clothes dryer comprises an outer cylinder and an inner cylinder. A plurality of lifting ribs are arranged on the inner wall of the inner cylinder in the circumferential direction at intervals and comprise at least one first lifting rib and at least one second lifting rib, the first lifting rib comprises a first rib section and a second rib section, the radial height of the first rib section is larger than that of the second rib section, and the second lifting rib comprises a third rib section and a fourth rib section. The radial height of the third rib section is smaller than that of the fourth rib section. The first lifting rib is high in front and short in back, the second lifting rib is short in front and high in back, in the rotating process of the inner drum, the first lifting rib can push clothes in the inner drum from outside to inside, the second lifting rib can push the clothes in the inner drum from inside to outside, so that the clothes are fully turned over in the inner drum, the clothes are prevented from being wound, and wrinkles generated after the clothes are dried are effectively reduced. By controlling the inner drum to rotate alternately in the forward direction and the reverse direction, the clothes in the inner drum can be further prevented from being wound, and wrinkles of the clothes are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly relates to a clothes dryer and a control method thereof. Background Art

[0002] During the drying process of the clothes dryer, the drum continuously lifts and flips the clothes by means of lifting ribs, so that the clothes come into contact with hot air, and the hot air takes away moisture to achieve the purpose of drying. The lifting ribs in the existing clothes dryer drum are usually of a symmetrical structure or are bent in a wave shape, and the thickness of the lifting ribs is consistent from front to back, which cannot effectively prevent the clothes from tangling, and the dried clothes have wrinkles.

[0003] In addition, when drying clothes, most of the existing clothes dryers rotate the drum only in one direction, which easily causes the clothes to tangle and wrinkle, affects the drying efficiency of the clothes, and the clothes are also easily worn.

[0004] Therefore, there is an urgent need for a clothes dryer and a control method thereof to solve the above problems. Summary of the Invention

[0005] Based on the above problems, the purpose of the present invention is to provide a clothes dryer and a control method thereof, which can prevent the clothes from tangling during the drying process and effectively reduce the wrinkles of the dried clothes.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] On the one hand, a clothes dryer is provided, which includes an outer cylinder and an inner cylinder disposed inside the outer cylinder. A plurality of lifting ribs are circumferentially and spacedly disposed on the inner wall of the inner cylinder. The plurality of lifting ribs include at least one first lifting rib and at least one second lifting rib;

[0008] The first lifting rib includes a first rib segment and a second rib segment connected to each other. The first rib segment is closer to the front end of the inner cylinder than the second rib segment, and the radial height of the first rib segment is greater than the radial height of the second rib segment;

[0009] The second lifting rib includes a third rib segment and a fourth rib segment connected to each other. The third rib segment is closer to the front end of the inner cylinder than the fourth rib segment, and the radial height of the third rib segment is less than the radial height of the fourth rib segment.

[0010] As a preferred solution of the clothes dryer of the present invention, the first lifting rib further includes a first transition connection segment. The first rib segment is smoothly and transitionally connected to the second rib segment through the first transition connection segment, and the radial height of the first transition connection segment gradually decreases from the front end to the rear end of the inner cylinder.

[0011] As a preferred embodiment of the dryer of the present invention, the second lifting rib further includes a second transition connection section, the third rib section is smoothly and transitionally connected to the fourth rib section through the second transition connection section, and the radial height of the second transition connection section gradually increases from the front end to the rear end of the inner cylinder.

[0012] As a preferred embodiment of the dryer of the present invention, two of the first lifting ribs are provided, and one of the second lifting ribs is provided. The two first lifting ribs and the one second lifting rib are equally spaced along the circumferential direction in the inner cylinder.

[0013] As a preferred embodiment of the dryer of the present invention, the inner cylinder includes a first cylinder section, a transition cylinder section and a second cylinder section connected in sequence. The first cylinder section has a feeding port. The diameter of the first cylinder section is smaller than the diameter of the second cylinder section. The diameter of the transition cylinder section gradually increases from the front end to the rear end of the inner cylinder;

[0014] Alternatively, the diameter of the inner cylinder gradually increases from the front end to the rear end of the inner cylinder.

[0015] As a preferred embodiment of the dryer of the present invention, the dryer further includes a stress detection member for detecting the stress generated on the inner cylinder when the clothes in the inner cylinder are thrashed during the drying process, and the dryer controls the rotation direction of the inner cylinder according to the stress value detected by the stress detection member.

[0016] As a preferred embodiment of the dryer of the present invention, the dryer further includes a cabinet. The outer cylinder and the inner cylinder are both located in the cabinet. A drying air path and a blower are provided in the cabinet. The front end of the inner cylinder has an air outlet hole, and the rear end of the inner cylinder has an air inlet hole. The drying air path is communicated with the inside of the inner cylinder through the air inlet hole and the air outlet hole, and the blower is used to introduce drying air flow into the drying air path.

[0017] On the other hand, a dryer control method is provided, which is applied to the dryer as described above, and includes the following steps:

[0018] S1. Obtain the drying mode;

[0019] S2. Control the inner cylinder to rotate according to the preset drying parameters in the drying mode. The preset drying parameters include the rotation direction of the inner cylinder, the positive and negative rotation ratio, and the total positive and negative rotation time.

[0020] As a preferred embodiment of the dryer control method of the present invention, step S2 includes:

[0021] S21. Real-time detect the stress generated on the inner cylinder when the clothes in the inner cylinder are thrashed;

[0022] S22. Determine whether the detected stress value is greater than the set threshold. If so, proceed to step S23; if not, proceed to step S24;

[0023] S23. Adjust the preset drying parameters and use the adjusted drying parameters as the drying parameters for the current drying mode to dry the clothes;

[0024] S24. Dry the clothes with the preset drying parameters in the drying mode.

[0025] As a preferred solution of the dryer control method of the present invention, step S23 includes:

[0026] S231. Control the inner drum to stop rotating in the current direction and control the inner drum to rotate in the direction opposite to the current direction;

[0027] S232. Reduce the total sum of the forward and reverse rotation times of the inner drum and reduce or keep unchanged the forward and reverse rotation ratio of the inner drum.

[0028] As a preferred solution of the dryer control method of the present invention, the dryer control method further includes the following steps:

[0029] S3. After drying is completed, determine whether the door of the dryer is opened within a preset time period. If so, the dryer enters the standby state; if not, control the inner drum to rotate regularly according to the preset forward and reverse rotation ratio.

[0030] The beneficial effects of the present invention are:

[0031] The dryer provided by the present invention arranges at least one lifting rib one and at least one lifting rib two in the inner drum, and the radial height of the first rib section of the lifting rib one is greater than the radial height of the second rib section, and the radial height of the third rib section of the lifting rib two is less than the radial height of the fourth rib section. That is, the lifting rib one is higher in the front and lower in the back, and the lifting rib two is lower in the front and higher in the back. During the rotation of the inner drum, the lifting rib one can push the clothes in the inner drum from the outside to the inside, and the lifting rib two can push the clothes in the inner drum from the inside to the outside, so that the clothes are fully turned over in the inner drum, the clothes are shaken loose, preventing the clothes from being entangled, and effectively reducing the wrinkles of the clothes after drying. At the same time, after the lifting rib one and the lifting rib two shake the clothes open, it is beneficial for the hot air to fully contact the clothes, thereby improving the drying efficiency and shortening the waiting time for drying clothes.

[0032] The dryer control method provided by the present invention controls the inner drum to rotate forward and backward alternately, so that the position of the clothes in the inner drum can be continuously changed, further preventing the clothes in the inner drum from being entangled, avoiding the clothes from generating wrinkles, and improving the drying effect of the dryer. At the same time, the inner drum rotates according to the preset forward and reverse rotation ratio, which can also reduce the friction between the clothes, dry the clothes more gently, make the dried clothes more fluffy and soft, and more comfortable to wear. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description in the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present invention and these drawings.

[0034] Figure 1 is the first internal schematic diagram of the inner drum of the dryer provided by the specific embodiment of the present invention;

[0035] Figure 2 is the second internal schematic diagram of the inner drum of the dryer provided by the specific embodiment of the present invention;

[0036] Figure 3 is the plan schematic diagram of the inner drum of the dryer provided by the specific embodiment of the present invention;

[0037] Figure 4 is the third internal schematic diagram of the inner drum of the dryer provided by the specific embodiment of the present invention;

[0038] Figure 5 is the fourth internal schematic diagram of the inner drum of the dryer provided by the specific embodiment of the present invention;

[0039] Figure 6 is the flowchart of the dryer control method provided by the specific embodiment of the present invention.

[0040] In the figure:

[0041] 1 - inner drum; 2 - first lifting rib; 3 - second lifting rib;

[0042] 11 - first drum section; 12 - transition drum section; 13 - second drum section;

[0043] 21 - first rib section; 22 - second rib section; 23 - first transition connection section;

[0044] 31 - third rib section; 32 - fourth rib section; 33 - second transition connection section;

[0045] 100 - clothing. Specific Embodiment

[0046] To make the technical problems solved by the present invention, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0047] 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 accompanying 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 should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0048] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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.

[0049] As Figures 1 to 5 shown, this embodiment provides a dryer that can prevent the clothes 100 from tangling during the drying process and effectively reduce the wrinkles of the clothes 100 after drying. The dryer includes an outer cylinder and an inner cylinder 1 disposed inside the outer cylinder.

[0050] Among them, referring to Figure 1 and Figure 2 , a plurality of lifting ribs are arranged at intervals along the circumferential direction on the inner wall of the inner cylinder 1. The plurality of lifting ribs include at least one first lifting rib 2 and at least one second lifting rib 3. The first lifting rib 2 includes a connected first rib section 21 and a second rib section 22. The first rib section 21 is closer to the front end of the inner cylinder 1 than the second rib section 22, and the radial height of the first rib section 21 is greater than the radial height of the second rib section 22. The second lifting rib 3 includes a connected third rib section 31 and a fourth rib section 32. The third rib section 31 is closer to the front end of the inner cylinder 1 than the fourth rib section 32, and the radial height of the third rib section 31 is less than the radial height of the fourth rib section 32. The above-mentioned radial height refers to the thickness dimension of the lifting rib in the radial direction of the inner cylinder 1.

[0051] The dryer provided in this embodiment arranges at least one first lifting rib 2 and at least one second lifting rib 3 in the inner drum 1. The radial height of the first rib segment 21 of the first lifting rib 2 is greater than that of the second rib segment 22, and the radial height of the third rib segment 31 of the second lifting rib 3 is less than that of the fourth rib segment 32. That is, the first lifting rib 2 is higher at the front and lower at the back, and the second lifting rib 3 is lower at the front and higher at the back. During the rotation of the inner drum 1, the first lifting rib 2 can push the clothes 100 in the inner drum 1 from the outside to the inside, and the second lifting rib 3 can push the clothes 100 in the inner drum 1 from the inside to the outside, so that the clothes 100 are fully flipped in the inner drum 1, the clothes 100 are shaken loose, preventing the clothes 100 from tangling, and effectively reducing the wrinkles of the clothes 100 after drying. At the same time, after the first lifting rib 2 and the second lifting rib 3 shake the clothes 100, it is beneficial for the hot air to fully contact the clothes 100, thereby improving the drying efficiency and shortening the waiting time for drying clothes.

[0052] Optionally, referring to Figure 1 and Figure 4 , the first lifting rib 2 further includes a first transition connection section 23. The first rib segment 21 is smoothly transitionally connected to the second rib segment 22 through the first transition connection section 23, and the radial height of the first transition connection section 23 gradually decreases from the front end to the back end of the inner drum 1. The first transition connection section 23 forms a guiding inclined surface between the first rib segment 21 and the second rib segment 22, making it easier for the clothes 100 to roll from the first rib segment 21 to the second rib segment 22, so as to push the clothes 100 from the front end to the back end of the inner drum 1. Exemplarily, the radial height of the first rib segment 21 is twice that of the second rib segment 22, and the length of the first rib segment 21 is slightly greater than that of the second rib segment 22. In other embodiments, the radial height ratio and length ratio of the first rib segment 21 and the second rib segment 22 can also be adaptively designed according to actual needs.

[0053] Optionally, referring to Figure 2 , the second lifting rib 3 further includes a second transition connection section 33. The third rib segment 31 is smoothly transitionally connected to the fourth rib segment 32 through the second transition connection section 33, and the radial height of the second transition connection section 33 gradually increases from the front end to the back end of the inner drum 1. The second transition connection section 33 forms a guiding inclined surface between the third rib segment 31 and the fourth rib segment 32, making it easier for the clothes 100 to roll from the fourth rib segment 32 to the third rib segment 31, so as to push the clothes 100 from the back end to the front end of the inner drum 1. Exemplarily, the radial height of the third rib segment 31 is half of that of the fourth rib segment 32, and the length of the third rib segment 31 is slightly less than that of the fourth rib segment 32. In other embodiments, the radial height ratio and length ratio of the third rib segment 31 and the fourth rib segment 32 can be adaptively adjusted according to actual needs.

[0054] In a new embodiment, the radial height of the first lifting rib 2 can also be designed to gradually decrease from the front end to the rear end of the inner cylinder 1, and the radial height of the second lifting rib 3 can be designed to gradually increase from the front end to the rear end of the inner cylinder 1.

[0055] Optionally, the dryer further includes a cabinet. The outer cylinder and the inner cylinder 1 are both located inside the cabinet. A drying air duct and a blower are arranged inside the cabinet. The front end of the inner cylinder 1 has air outlet holes, and the rear end of the inner cylinder 1 has air inlet holes. The drying air duct is communicated with the inside of the inner cylinder 1 through the air inlet holes and the air outlet holes. The blower is used to introduce drying air flow into the drying air duct so that the drying air flow can take out the wet gas in the inner cylinder 1 to achieve drying of the clothes 100. Specifically, a condenser and an evaporator are also arranged on the circulation path of the drying air duct. The air is heated by the condenser to form dry hot air. The hot air is blown into the inner cylinder 1 by the blower through the air inlet holes. The dry hot air passes through the wet clothes 100, takes away the moisture, and becomes warm and humid air. The warm and humid air is discharged from the inner cylinder 1 through the air outlet holes, and then is cooled by the evaporator to precipitate moisture and becomes dry cold air. After the dry cold air enters the condenser, it is heated into dry hot air again and enters the drum again. In this way, the drying of the clothes 100 is realized.

[0056] Optionally, referring to Figure 5 , there are two first lifting ribs 2 and one second lifting rib 3. The two first lifting ribs 2 and the one second lifting rib 3 are evenly distributed at intervals along the circumferential direction in the inner cylinder 1. With this setting, when the inner cylinder 1 rotates, the two first lifting ribs 2 push the clothes 100 backward, and the one second lifting rib 3 pushes the clothes 100 forward. At the same time, along with the rotation of the inner cylinder 1 and the intake of air through the air inlet holes and the exhaust of air through the air outlet holes, the turning path of the clothes 100 in the inner cylinder 1 is spiral, so that the entanglement of the clothes 100 can be effectively prevented. Distributing the two first lifting ribs 2 and the one second lifting rib 3 at intervals can improve the rotational stability of the inner cylinder 1, so that the clothes 100 turn more evenly ( Figure 5 The arrow direction in represents the turning direction of 100).

[0057] In other embodiments, the first lifting rib 2 and the second lifting rib 3 can also be set to the same number. For example, two first lifting ribs 2 and two second lifting ribs 3 are provided, and the first lifting rib 2 and the second lifting rib 3 are staggered.

[0058] Optionally, referring to Figure 3 , the inner cylinder 1 includes a first cylinder section 11, a transition cylinder section 12 and a second cylinder section 13 connected in sequence. The first cylinder section 11 has a feeding port. The diameter of the first cylinder section 11 is smaller than that of the second cylinder section 13. The diameter of the transition cylinder section 12 gradually increases from the front end to the rear end of the inner cylinder 1. The design of the transition cylinder section 12 makes the inner wall of the inner cylinder 1 form a slope between the first cylinder section 11 and the second cylinder section 13, as shown in Figure 4As shown, during the rotation of the inner cylinder 1, the laundry 100 is flipped along the Figure 4 arrow direction in Figure 4 . The presence of the slope makes it easier for the laundry 100 to roll from the front end to the rear end and from the rear end to the front end of the inner cylinder 1, further improving the flipping effect of the laundry 100, fully shaking the laundry 100 out, and avoiding wrinkles on the laundry 100.

[0059] In another embodiment, the diameter of the inner cylinder 1 gradually increases from the front end to the rear end of the inner cylinder 1, that is, the inner cylinder 1 is a variable-diameter cylinder. In this way, the laundry 100 can also move more easily from the front end to the rear end under the action of centrifugal force.

[0060] Optionally, the dryer further includes a stress detection member for detecting the stress generated on the inner cylinder 1 when the laundry 100 in the inner cylinder 1 is thrashed during the drying process. The dryer controls the rotation direction of the inner cylinder 1 according to the stress value detected by the stress detection member. Specifically, when the stress value detected by the stress detection member is greater than the set threshold, it indicates that the laundry 100 is entangled, so the stress generated on the inner cylinder 1 during the thrashing process is relatively large. At this time, the rotation of the inner cylinder 1 in the current direction is stopped and rotated in the opposite direction, which can untangle the entangled laundry 100 and prevent wrinkles from appearing on the laundry 100 due to entanglement.

[0061] In this embodiment, the stress detection member is arranged on the support part of the inner cylinder 1 to accurately detect the stress change of the inner cylinder 1. Exemplarily, the stress detection member is a stress sensor.

[0062] As Figure 6 shown, this embodiment also provides a dryer control method applied to the dryer as described above, including the following steps:

[0063] S1. Obtain the drying mode;

[0064] S2. Control the inner cylinder 1 to rotate according to the preset drying parameters in the drying mode. The preset drying parameters include the rotation direction of the inner cylinder 1, the positive and negative rotation ratio, and the total positive and negative rotation time.

[0065] The dryer control method controls the forward and reverse alternating rotation of the inner cylinder 1, so that the position of the clothes 100 in the inner cylinder 1 can be continuously changed, thus avoiding the entanglement of the clothes 100, preventing the clothes 100 from wrinkling, ensuring that each piece of clothes 100 can evenly contact the hot air, realizing the rapid drying of the clothes 100, and improving the drying effect of the dryer. At the same time, the inner cylinder 1 rotates according to the preset forward and reverse ratio, which can also reduce the friction between the clothes 100, dry the clothes 100 more gently, and protect the clothes 100 from damage. In addition, by controlling the forward and reverse rotation of the inner cylinder 1 to dry the clothes 100, not only can the drying efficiency be improved, but also the dried clothes 100 can be made more fluffy and soft, more comfortable to wear, and the later finishing time of the clothes 100 can be saved.

[0066] In step S1, there can be multiple drying modes, such as the standard drying mode, the low-temperature drying mode, etc. The user can adaptively select the drying mode according to the material of the clothes 100 to be dried (such as cotton, chemical fiber, etc.) to avoid damaging the clothes 100.

[0067] Continue to refer to Figure 6 , in this embodiment, step S2 includes:

[0068] S21. Real-time detect the stress generated on the inner cylinder 1 when the clothes 100 in the inner cylinder 1 are tossed;

[0069] S22. Judge whether the detected stress value is greater than the set threshold. If so, enter step S23; if not, enter step S24;

[0070] S23. Adjust the preset drying parameters and use the adjusted drying parameters as the drying parameters of the current drying mode to dry the clothes 100;

[0071] S24. Dry the clothes 100 with the preset drying parameters in the drying mode.

[0072] In step S21, the stress change received by the inner cylinder 1 is detected by the stress detection member provided on the support portion of the inner cylinder 1 to real-time detect the winding condition of the clothes 100 in the inner cylinder 1, facilitating timely adjustment of the rotation direction of the inner cylinder 1 to shake loose the clothes 100.

[0073] In step S22, the set threshold can be determined according to the winding condition of the clothes 100 in different drying modes during the preliminary test stage. When the stress value detected by the stress detection member exceeds the set threshold, it indicates that the clothes 100 in the inner cylinder 1 are wound more severely. At this time, the drying parameters in the current drying mode are adjusted to timely untangle the clothes 100.

[0074] Further, step S23 includes:

[0075] S231. Control the inner cylinder 1 to stop rotating in the current direction and control the inner cylinder 1 to rotate in the direction opposite to the current direction;

[0076] S232. Reduce the total positive and negative rotation time of the inner cylinder 1 and reduce or keep unchanged the positive and negative rotation ratio of the inner cylinder 1.

[0077] Specifically, when the stress value detected by the stress detection member is greater than the set threshold value, if the current inner cylinder 1 rotates clockwise, then control the inner cylinder 1 to switch to rotate counterclockwise; if the current inner cylinder 1 rotates counterclockwise, then control the inner cylinder 1 to switch to rotate clockwise. By reducing the total positive and negative rotation time of the inner cylinder 1, the positive rotation time and the negative rotation time of the inner cylinder 1 can be shortened, that is, the positive and negative rotation switching frequency of the inner cylinder 1 is increased, thereby avoiding the entanglement of the clothes 100 in the inner cylinder 1.

[0078] In step S32, the value range of the positive and negative rotation ratio is 1 to 16. The closer the positive and negative rotation ratio of the inner cylinder 1 is to 1, the better the anti-entanglement effect. Therefore, by reducing the positive and negative rotation ratio of the inner cylinder 1, the entanglement of the clothes 100 in the inner cylinder 1 can be further prevented, and the wrinkles of the clothes 100 after drying can be avoided. Exemplarily, the positive and negative rotation ratio of the inner cylinder 1 is 1, that is, during the drying process, the positive rotation time and the negative rotation time of the inner cylinder 1 are the same.

[0079] Furthermore, the preset drying parameters further include the drying temperature. A temperature detection member (such as a temperature sensor) can be set in the inner cylinder 1 to detect the drying temperature in the inner cylinder 1 in real time, and adjust the positive and negative rotation ratio and the total positive and negative rotation time of the drum according to the detected drying temperature, so as to further improve the drying efficiency of the clothes 100.

[0080] In this embodiment, the dryer control method further includes the following steps:

[0081] S3. After the drying is completed, determine whether the door body of the dryer is opened within a preset time period. If so, the dryer enters the standby state; if not, control the inner cylinder 1 to rotate regularly according to the preset positive and negative rotation ratio.

[0082] Since users cannot wait beside the dryer all the time during the drying process of the clothing 100, if the users fail to take out the clothing 100 in the inner drum 1 in time after the drying is completed, the clothing 100 stacked together will still generate wrinkles. Therefore, after the drying program is executed and completed, if the door of the dryer has not been opened after a preset duration, it indicates that the clothing 100 has not been taken out in time. By controlling the inner drum 1 to rotate forward and backward regularly, wrinkles caused by the long-term stacking of the clothing 100 can be prevented. Exemplarily, the preset duration can be 10 minutes, 20 minutes, etc. The above-mentioned preset forward and reverse ratio can be set according to user needs. For example, the forward and reverse ratio is 1 or 2. The timing rotation time interval of the inner drum 1 can be 3 minutes, 5 minutes, etc. The total forward and reverse time of the inner drum 1 each time can be 20 seconds, 30 seconds, etc., as long as the effect of regularly flipping the clothing 100 can be achieved.

[0083] Note that the above is only the preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A clothes dryer, characterized in that, It includes an outer cylinder and an inner cylinder (1) disposed inside the outer cylinder. A plurality of lifting ribs are circumferentially and spacedly arranged along the inner wall of the inner cylinder (1). The plurality of lifting ribs include at least one first lifting rib (2) and at least one second lifting rib (3); The first lifting rib (2) includes a connected first rib segment (21) and a second rib segment (22). The first rib segment (21) is closer to the front end of the inner cylinder (1) than the second rib segment (22), and the radial height of the first rib segment (21) is greater than the radial height of the second rib segment (22); The second lifting rib (3) includes a connected third rib segment (31) and a fourth rib segment (32). The third rib segment (31) is closer to the front end of the inner cylinder (1) than the fourth rib segment (32), and the radial height of the third rib segment (31) is less than the radial height of the fourth rib segment (32).

2. The dryer according to claim 1, wherein, The first lifting rib (2) further includes a first transition connection segment (23). The first rib segment (21) is smoothly and transitionally connected to the second rib segment (22) through the first transition connection segment (23). The radial height of the first transition connection segment (23) gradually decreases from the front end to the rear end of the inner cylinder (1).

3. The dryer according to claim 1, characterized in that, The second lifting rib (3) further includes a second transition connection segment (33). The third rib segment (31) is smoothly and transitionally connected to the fourth rib segment (32) through the second transition connection segment (33). The radial height of the second transition connection segment (33) gradually increases from the front end to the rear end of the inner cylinder (1).

4. The dryer according to claim 1, characterized in that, There are two first lifting ribs (2) and one second lifting rib (3). The two first lifting ribs (2) and the one second lifting rib (3) are equally spaced along the circumferential direction in the inner cylinder (1).

5. The dryer according to claim 1, characterized in that, The inner cylinder (1) includes a first cylinder segment (11), a transition cylinder segment (12), and a second cylinder segment (13) connected in sequence. The first cylinder segment (11) has a feeding port. The diameter of the first cylinder segment (11) is smaller than the diameter of the second cylinder segment (13). The diameter of the transition cylinder segment (12) gradually increases from the front end to the rear end of the inner cylinder (1); Or, the diameter of the inner cylinder (1) gradually increases from the front end to the rear end of the inner cylinder (1).

6. The dryer according to any one of claims 1-5, characterized in that, The dryer further includes a stress detection member for detecting the stress generated on the inner cylinder (1) when the clothes (100) in the inner cylinder (1) are thrashed during the drying process. The dryer controls the rotation direction of the inner cylinder (1) according to the stress value detected by the stress detection member.

7. The clothes dryer according to any one of claims 1-5, characterized in that The dryer further includes a cabinet. The outer cylinder and the inner cylinder (1) are both located inside the cabinet. A drying air path and a blower are provided inside the cabinet. The front end of the inner cylinder (1) has an air outlet hole, and the rear end of the inner cylinder (1) has an air inlet hole. The drying air path is communicated with the inside of the inner cylinder (1) through the air inlet hole and the air outlet hole. The blower is used to introduce drying air flow into the drying air path.

8. A method for controlling a clothes dryer, applied to the clothes dryer according to any one of claims 1-7, characterized in that, It includes the following steps: S1. Obtain the drying mode; S2. Control the inner drum (1) to rotate according to the preset drying parameters in the drying mode, where the preset drying parameters include the rotation direction of the inner drum (1), the forward and reverse rotation ratio, and the total forward and reverse rotation time.

9. The dryer control method according to claim 8, characterized in that, Step S2 includes: S21. Real-time detect the stress generated on the inner drum (1) when the clothes (100) in the inner drum (1) are thrashed; S22. Determine whether the detected stress value is greater than the set threshold. If so, proceed to step S23; if not, proceed to step S24; S23. Adjust the preset drying parameters and use the adjusted drying parameters as the drying parameters for the current drying mode to dry the clothes (100); S24. Dry the clothes (100) with the preset drying parameters in the drying mode.

10. The dryer control method according to claim 9, characterized in that, Step S23 includes: S231. Control the inner drum (1) to stop rotating in the current direction and control the inner drum (1) to rotate in the direction opposite to the current direction; S232. Reduce the total forward and reverse rotation time of the inner drum (1) and reduce or keep unchanged the forward and reverse rotation ratio of the inner drum (1).

11. The dryer control method according to claim 8, characterized in that, The dryer control method further includes the following steps: S3. After drying is completed, determine whether the door of the dryer is opened within a preset time. If so, the dryer enters the standby state; if not, control the inner drum (1) to rotate regularly according to the preset forward and reverse rotation ratio.

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