Drying tunnel fan and clothes processing equipment

Abstract

The utility model relates to a drying tunnel fan and clothes processing equipment, the drying tunnel fan comprises a fan shell and an impeller, the fan shell comprises a fan outer shell and a motor outer shell, one part of the fan outer shell is concavely arranged to form a mounting groove, at least one part of the motor outer shell is arranged in the mounting groove, and the impeller is arranged in the motor outer shell. At least one part, located in the mounting groove, of the motor shell is attached to the fan shell. At least one part of the impeller is arranged in the fan shell, and an annular fan inlet is defined by a hub of the impeller and the fan shell. According to the drying tunnel fan, at least one part, located in the mounting groove, of the motor shell is attached to the fan shell, a mounting gap can be prevented from being reserved between the groove side wall of the mounting groove and the motor shell, and therefore the radial size of the mounting groove can be reduced, the radial size of a hub is reduced, the air inlet area of a fan inlet is increased, and the service life of the fan is prolonged. And the air volume of the drying tunnel fan is increased.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of household appliances, in particular to an oven duct fan and a clothes treatment apparatus. BACKGROUND

[0002] Clothes treatment apparatuses with drying function, such as washer-dryer or clothes dryer, need to be provided with an oven duct fan for sending air into a drying barrel. The oven duct fan comprises a fan shell, a motor and an impeller. The fan shell is provided with a mounting groove, and the motor is installed inside the mounting groove. The impeller is arranged inside the fan shell, and an annular fan inlet is formed between the hub of the impeller and the fan shell. In the related art, the oven duct fan has the problem of small air volume. SUMMARY

[0003] The present disclosure provides an oven duct fan to increase the air volume of the oven duct fan.

[0004] The oven duct fan of the present disclosure comprises a fan shell and an impeller. The fan shell comprises a fan shell and a motor shell. A portion of the fan shell is recessed to form a mounting groove. At least a portion of the motor shell is arranged inside the mounting groove. The at least a portion of the motor shell inside the mounting groove is attached to the fan shell. At least a portion of the impeller is arranged inside the fan shell. An annular fan inlet is formed between the hub of the impeller and the fan shell.

[0005] Optionally, the bottom wall of the mounting groove is open to form an opening. A first portion of the motor shell is attached to the fan shell. A second portion of the motor shell extends into the hub through the opening, so that an air duct is formed between the groove wall of the mounting groove, the second portion and the hub.

[0006] Optionally, the fan shell comprises a first shell and a second shell. The hub and the first shell form the fan inlet. The mounting groove is arranged in the second shell. In the axial direction of the impeller, there is a first gap between the blades of the impeller and the first shell, and a second gap between the blades and the second shell. The air duct communicates with the second gap.

[0007] Optionally, the second gap is larger than the first gap.

[0008] Optionally, the motor shell is a metal shell, the fan shell is a plastic shell, and the motor shell and the fan shell are integrally injection molded.

[0009] Optionally, the motor shell has a mounting port and a mounting cavity. The mounting port communicates with the mounting cavity. The fan shell further comprises a motor end cover. The motor end cover seals the mounting port. The motor end cover is detachably connected to the motor shell.

[0010] Optionally, the mounting slot comprises a first slot section and a second slot section, the slot opening of the mounting slot is arranged in the first slot section, the radial dimension of the first slot section is greater than the radial dimension of the second slot section, and the mounting opening is arranged in the first slot section.

[0011] Optionally, the outer diameter of the hub is less than 95 mm.

[0012] Optionally, the spacing between the outer ring of the fan inlet and the inner ring of the fan inlet is greater than 11 mm.

[0013] The present disclosure also proposes a laundry treating apparatus.

[0014] The laundry treating apparatus of the present disclosure comprises the above-mentioned drum fan.

[0015] The drum fan of the present disclosure can avoid reserving a mounting gap between the slot side wall of the mounting slot and the motor housing, thereby reducing the radial dimension of the mounting slot, and further reducing the radial dimension of the hub, increasing the air inlet area of the fan inlet, and increasing the air volume of the drum fan. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the drum fan of the present disclosure.

[0017] Figure 2 is a perspective view of the drum fan of the present disclosure from another angle.

[0018] Figure 3 is a top view of the drum fan of the present disclosure.

[0019] Figure 4 is the A-A view of Figure 3

[0020] Figure 5 is the B-B view of Figure 3

[0021] Reference Signs:

[0022] 100, drum fan;

[0023] 10, fan housing;

[0024] 1, fan housing; 11, first housing; 111, fan inlet; 12, second housing; 121, mounting slot; 1211, first slot section; 1212, second slot section; 1213, opening; 13, fan cavity; 131, fan outlet;

[0025] ​​2, motor housing; 210, third part; 211, first part; 212, second part; 213, mounting opening; 214, mounting cavity;

[0026] 3, motor end cover;

[0027] 4, fastener;

[0028] 20, impeller; 201, hub; 202, blade; 203, air duct;

[0029] 30, motor shaft. DETAILED DESCRIPTION

[0030] The embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present disclosure, and cannot be understood as a limitation of the present disclosure.

[0031] In the related art, in order to ensure the normal installation of the motor, a mounting gap needs to be reserved between the slot side wall of the mounting slot and the motor housing of the motor, which results in that the radial dimension of the mounting slot is large, the radial dimension of the hub of the impeller is large, and further results in that the air inlet area of the fan inlet is small, and finally results in that the air volume of the air duct fan is small.

[0032] As shown in Figures 1 to 5 , the air duct fan 100 of the embodiment of the present disclosure includes a fan housing 10 and an impeller 20, the fan housing 10 includes a fan housing 1 and a motor housing 2, a part of the fan housing 1 is recessed to form a mounting slot 121, and at least a part of the motor housing 2 is arranged inside the mounting slot 121. At least a part of the motor housing 2 located inside the mounting slot 121 is attached to the fan housing 1. At least a part of the impeller 20 is arranged inside the fan housing 10, and an annular fan inlet 111 is formed between the hub 201 of the impeller 20 and the fan housing 1.

[0033] Among them, the fan housing 10 forms a part of the air duct, and the fan inlet 111 forms an air inlet of the air duct.

[0034] The air duct fan 100 of the embodiment of the present disclosure can avoid reserving a mounting gap between the slot side wall of the mounting slot 121 and the motor housing 2 by attaching at least a part of the motor housing 2 located inside the mounting slot 121 to the fan housing 1, thereby reducing the radial dimension of the mounting slot 121, further reducing the radial dimension of the hub 201, increasing the air inlet area of the fan inlet 111, and increasing the air volume of the air duct fan 100.

[0035] As shown in Figure 4 and Figure 5 , the motor includes a motor shaft 30, and the motor shaft 30 is connected with the hub 201 to drive the hub 201 to rotate.

[0036] Optionally, the outer diameter of the wheel hub 201 is less than 95mm.

[0037] For example, the outer diameter of the wheel hub 201 is 90mm.

[0038] By setting the outer diameter of the wheel hub 201 to be less than 95mm, the outer diameter of the wheel hub 201 is reduced, effectively increasing the air inlet area of the fan inlet 111, and increasing the air volume of the drying channel fan 100.

[0039] Optionally, the interval between the outer ring of the fan inlet 111 and the inner ring of the fan inlet 111 is greater than 11mm.

[0040] For example, the interval between the outer ring of the fan inlet 111 and the inner ring of the fan inlet 111 is 13.5mm.

[0041] By setting the interval between the outer ring of the fan inlet 111 and the inner ring of the fan inlet 111 to be greater than 11mm, the air inlet area of the fan inlet 111 is effectively increased, and the air volume of the drying channel fan 100 is increased.

[0042] In order to make the technical solutions of the present disclosure easier to be understood, the axial direction of the drying channel fan 100 is taken as an example below, and the technical solutions of the present disclosure are further described. Among them, the up-down direction is as shown in Figure 1 、 Figure 2 、 Figure 4 and Figure 5 .

[0043] For example, as shown in Figure 4 and Figure 5 , a part of the fan housing 1 is concave downward to form a mounting groove 121, and the groove opening of the mounting groove 121 is upward.

[0044] Optionally, as shown in Figure 4 and Figure 5 , the groove bottom wall of the mounting groove 121 is open to form an opening 1213, and the first part 211 of the motor housing 2 is attached to the fan housing 1. The second part 212 of the motor housing 2 extends into the interior of the wheel hub 201 through the opening 1213, so that the groove wall of the mounting groove 121, the second part 212 and the wheel hub 201 form an air duct 203.

[0045] For example, the lower part of the mounting groove 121 is open to form an opening 1213, the first part 211 is arranged on the upper side of the second part 212, and the second part 212 extends into the interior of the wheel hub 201 downward through the opening 1213. The outer side of the mounting groove 121, the outer side of the second part 212 and the inner side of the wheel hub 201 form an air duct 203.

[0046] It can be understood that after at least a part of the motor housing 2 is attached to the fan housing 1, there is no gap between the motor housing 2 and the fan housing 1, which results in that the cooling fan cannot be arranged in the motor housing 2 and cooled by the gap between the motor housing 2 and the fan housing 1. Therefore, the lower part of the mounting groove 121 is opened to form an opening 1213, the second part 212 of the motor housing 2 extends into the inside of the hub 201 through the opening 1213, and the air duct 203 is formed between the groove wall of the mounting groove 121, the second part 212 and the hub 201, so that when the drying duct fan 100 works, the airflow can enter the air duct 203 to cool the motor, which simplifies the structure of the drying duct fan 100 and reduces the cost of the drying duct fan 100.

[0047] As shown in Figure 2 and Figure 5 , the fan housing 10 is provided with a fan outlet 131 and a fan cavity 13, and the impeller 20 is arranged in the fan cavity 13. The fan outlet 131, the fan inlet 111 and the air duct 203 are all in communication with the fan cavity 13.

[0048] As shown in Figure 5 , when the drying duct fan 100 works, the external airflow enters the fan cavity 13 from the fan inlet 111 under the driving of the impeller 20, and then flows out through the fan outlet 131, as shown by the solid arrows in Figure 5 .

[0049] It can be understood that the airflow at the fan outlet 131 has a large pressure, which will press a part of the airflow into the fan cavity 13 from the fan outlet 131 and into the air duct 203 through the fan cavity 13. Then the airflow in the air duct 203 enters the fan cavity 13 to cool the motor. Finally, the airflow in the fan cavity 13 flows out through the fan outlet 131, as shown by the dashed arrows in Figure 5 .

[0050] Optionally, as shown in Figure 4 and Figure 5 , the fan housing 1 comprises a first housing 11 and a second housing 12, the fan inlet 111 is formed between the hub 201 and the first housing 11, and the mounting groove 121 is arranged on the second housing 12. In the axial direction of the impeller 20, there is a first gap between the blades 202 of the impeller 20 and the first housing 11, and a second gap between the blades 202 and the second housing 12, and the air duct 203 is in communication with the second gap.

[0051] For example, as shown in Figure 4 and Figure 5 , the first housing 11 is arranged on the lower side of the second housing 12, there is a first gap between the upper end of the blade 202 and the lower end of the first housing 11, and there is a second gap between the lower end of the blade 202 and the upper end of the second housing 12.

[0052] It can be understood that, in order to avoid the blade 202 and the first shell 11 and the blade 202 and the second shell 12 from being scratched, a gap needs to be arranged between the blade 202 and the first shell 11 and between the blade 202 and the second shell 12.

[0053] When the drying duct fan 100 is working, the airflow enters the fan cavity 13 from the fan outlet 131 on the side close to the fan outlet 131, then enters the duct 203 on the side close to the fan outlet 131 through the second gap, and then flows to the side of the duct 203 away from the fan outlet 131, and finally enters the fan cavity 13 on the side away from the fan outlet 131, realizing cooling and heat dissipation of the motor, as shown by the dashed arrow in Figure 5 .

[0054] By communicating the duct 203 with the second gap, it is convenient to realize the communication of the duct 203 with the fan cavity 13.

[0055] Optionally, the second gap is greater than the first gap.

[0056] By setting the second gap to be greater than the first gap, the gap between the blade 202 and the second shell 12 is larger, so that more airflow entering from the fan outlet 131 can enter the duct 203 through the second gap, improving the heat dissipation effect of the motor, thereby improving the reliability of the drying duct fan 100.

[0057] The size of the second gap can be designed according to actual conditions, and the heat dissipation effect of the motor can be improved by increasing the second gap.

[0058] Optionally, the first gap is greater than or equal to 2mm.

[0059] By setting the first gap to be greater than or equal to 2mm, the blade 202 and the first shell 11 are effectively prevented from being scratched, and the reliability of the drying duct fan 100 is improved.

[0060] In some embodiments, the motor shell 2 is a metal shell, the fan shell 1 is a plastic shell, and the motor shell 2 and the fan shell 1 are integrally injection molded.

[0061] When manufacturing the fan shell 10, the motor shell 2 is first processed and formed, then the motor shell 2 is positioned in the injection mold, and the fan shell 1 is injection molded in the injection mold, so that the motor shell 2 and the fan shell 1 are integrally injection molded.

[0062] By integrally injection molding the motor shell 2 and the fan shell 1, it is convenient to process and manufacture the fan shell 10, which is conducive to reducing the cost of the drying duct fan 100.

[0063] Optionally, as shown in Figure 4 andFigure 5 As shown in the figure, the motor housing 2 has a mounting port 213 and a mounting cavity 214, and the mounting port 213 communicates with the mounting cavity 214. The fan housing 10 further comprises a motor end cover 3, which blocks the mounting port 213 and is detachably connected with the motor housing 2.

[0064] For example, the motor end cover 3 is connected with the motor housing 2 through fasteners 4, wherein the fasteners 4 can be bolts, screws, etc.

[0065] The mounting cavity 214 is used to accommodate the stator and rotor of the motor, and the mounting port 213 is used to allow the stator and rotor of the motor to be loaded into the mounting cavity 214. When assembling the drying tunnel fan 100, the stator and rotor of the motor are turned into the mounting cavity 214 through the mounting port 213, and then the motor end cover 3 is connected with the motor housing 2 and blocks the mounting port 213.

[0066] By detachably connecting the motor end cover 3 with the motor housing 2, the motor end cover 3 can be disassembled, the stator, rotor, etc. in the mounting cavity 214 can be disassembled and assembled, and the maintenance of the motor is facilitated.

[0067] Optionally, as shown in Figure 4 and Figure 5 The mounting groove 121 comprises a first groove section 1211 and a second groove section 1212, and the slot of the mounting groove 121 is arranged in the first groove section 1211. The radial dimension of the first groove section 1211 is greater than that of the second groove section 1212, and the mounting port 213 is arranged in the first groove section 1211.

[0068] For example, as shown in Figure 4 The upper end opening of the motor housing 2 forms the mounting port 213, the first groove section 1211 is arranged on the upper side of the second groove section 1212, and the mounting port 213 is arranged in the first groove section 1211.

[0069] By arranging the mounting port 213 in the first groove section 1211 with a larger radial dimension, a larger mounting space is provided at the mounting port 213, which facilitates the loading of the stator, rotor, etc. of the motor into the mounting cavity 214 through the mounting port 213, and is conducive to improving the assembly efficiency of the drying tunnel fan 100 and reducing the cost of the drying tunnel fan 100.

[0070] Optionally, the motor end cover 3 is arranged in the first groove section 1211, and there is a gap between the motor end cover 3 and the first groove section 1211.

[0071] For example, as shown in Figure 4 The motor housing 2 comprises a third portion 210 arranged in the first groove section 1211, the mounting port 213 is arranged in the third portion 210, and the motor end cover 3 is connected with the third portion 210.

[0072] By setting the motor end cover 3 to have a spacing with the first slot section 1211, the motor end cover 3 is conveniently fitted into the first slot section 1211, which is conducive to further improving the assembly efficiency of the drying duct fan 100 and reducing the cost of the drying duct fan 100.

[0073] The laundry treating apparatus of the embodiment of the present disclosure comprises the drying duct fan 100 of any of the above-mentioned embodiments. The laundry treating apparatus can be a washer-dryer or a clothes dryer.

[0074] The drying duct fan 100 of the embodiment of the present disclosure, by fitting the at least part of the motor housing 2 located inside the mounting slot 121 with the fan housing 1, can reduce the radial dimension of the mounting slot 121, and further reduce the radial dimension of the hub 201, increase the air inlet area of the fan inlet 111, and increase the air volume of the drying duct fan 100. Since there is airflow between the motor housing 2 and the hub 201, the cooling of the motor can be achieved, and the cooling fan and fan cover of the motor can be cancelled, the structure of the drying duct fan 100 is simplified, and the cost of the drying duct fan 100 is reduced.

[0075] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure.

[0076] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0077] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or in communication with each other; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0078] In the present disclosure, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly contacting the first and second features, or indirectly contacting the first and second features through an intermediate medium. Also, the first feature "over", "above" and "on top of" the second feature can be directly above or diagonally above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature "under", "below" and "underneath" the second feature can be directly below or diagonally below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0079] In the present disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material or characteristic is included in at least one embodiment or example of the present disclosure. In the specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the described specific features, structures, materials or characteristics can be combined in any suitable manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the specification and features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0080] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present disclosure, and that changes, modifications, replacements and variations of the above-described embodiments made by those skilled in the art are within the scope of protection of the present disclosure.

Claims

1. A tunnel fan, characterized in that The fan casing comprises a fan shell and a motor shell, a portion of the fan shell is recessed to form a mounting groove, at least a portion of the motor shell is arranged inside the mounting groove, and at least a portion of the motor shell arranged inside the mounting groove is attached to the fan shell; A hub of the impeller is arranged inside the fan casing, and an annular fan inlet is formed between the hub of the impeller and the fan shell. A bottom wall of the mounting groove is open to form an opening, a first portion of the motor shell is attached to the fan shell, and a second portion of the motor shell extends into the hub through the opening, so that an air duct is formed between the wall of the mounting groove, the second portion, and the hub.

2. The oven fan of claim 1, wherein, The fan shell comprises a first shell and a second shell, the hub and the first shell form the fan inlet, and the mounting groove is arranged in the second shell.

3. The oven fan of claim 2, wherein, In the axial direction of the impeller, a first gap is formed between the blades of the impeller and the first shell, and a second gap is formed between the blades and the second shell, and the air duct communicates with the second gap. The second gap is larger than the first gap.

4. The oven fan of claim 3, wherein, The motor shell is a metal shell, the fan shell is a plastic shell, and the motor shell and the fan shell are integrally injection molded.

5. The oven fan of any one of claims 1-4, wherein, The motor shell has a mounting port and a mounting cavity, the mounting port communicates with the mounting cavity, the fan casing further comprises a motor end cover, the motor end cover seals the mounting port, and the motor end cover is detachably connected to the motor shell.

6. The oven fan of any one of claims 1-4, wherein, The mounting groove comprises a first groove segment and a second groove segment, the groove opening of the mounting groove is arranged in the first groove segment, the radial dimension of the first groove segment is greater than that of the second groove segment, and the mounting port is arranged in the first groove segment.

7. The oven fan of claim 6, wherein, The outer diameter of the hub is less than 95 mm.

8. The oven fan of any one of claims 1-4, wherein, The spacing between the outer ring of the fan inlet and the inner ring of the fan inlet is greater than 11 mm.

9. The oven fan of any one of claims 1-4, wherein, The fan comprises the air duct fan of any one of claims 1-9. 10.A laundry treating apparatus, characterized by, The fan comprises the air duct fan of any one of claims 1-9.

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