Air duct structure of cloth washing machine

Abstract

The utility model provides a cloth art washing machine's air duct structure, including casing assembly, motor support, exhaust hood, drive motor, negative pressure fan blade subassembly and heat dissipation fan blade subassembly, the inside integral moulding of motor support has the baffle of ring shape, forms the installation cavity in the inside of baffle, and drive motor is fixed in the installation cavity, exhaust hood and the inner chamber cooperation of motor support located baffle top forms the exhaust chamber, and negative pressure fan blade subassembly sets up in the exhaust chamber, the inside of baffle lower extreme forms the air inlet, the outer peripheral wall of baffle and the inner peripheral wall cooperation of motor support lower part form the air deflector chamber of ring shape, and the edge of baffle upper end is provided with first passageway, is provided with second passageway on the side wall of baffle, and the air outlet passageway of setting up in the inside of casing assembly and setting up on the side wall of casing assembly several air outlet holes are communicated with the air deflector chamber, the utility model has simplified cloth art washing machine's air duct structure, and has reduced cloth art washing machine's spare part cost.

Description

Technical Field

[0001] This utility model relates to the technical field of fabric cleaning machines, and more specifically, to an air duct structure for a fabric cleaning machine. Background Technology

[0002] A fabric cleaning machine is a device used to clean the surface of textiles. Currently, fabric cleaning machines on the market mainly include a housing, water pump, air pump, steam generator, clean water tank, wastewater tank, drive motor, negative pressure fan assembly, handle, and cleaning head. The water pump, air pump, steam generator, drive motor, and negative pressure fan assembly are all installed inside the housing. The fan blades inside the negative pressure fan assembly are connected to the drive motor's shaft. The clean water tank and wastewater tank are connected to the upper part of the housing. The steam generator is connected to the water pump and air pump, and the water pump is connected to the clean water tank. The negative pressure fan assembly... The fan assembly is connected to the wastewater tank, and the handle is connected to both the clean water tank and the wastewater tank via pipes. The cleaning head is mounted on the handle. When the fabric cleaning machine is working, the water pump draws water from the clean water tank to the steam generator, and the air pump delivers compressed air to the steam generator. The steam generator then delivers steam through pipes to the handle and the cleaning head. The steam sprayed from the cleaning head cleans the surface of the textiles. Simultaneously, the negative pressure fan assembly creates negative pressure in the wastewater tank, thus improving the cleaning effect on the textile surface. Water vapor or liquid water can be drawn into the wastewater tank; in addition, to dissipate heat from the drive motor, a cooling fan assembly is installed inside the drive motor, and the fan blades in the cooling fan assembly are connected to the drive motor's shaft; in the above-mentioned existing fabric washing machine structure, when the fan blades in the cooling fan assembly rotate, the fan blades in the cooling fan assembly can draw in air from the external environment through the air inlet channel and air inlet hole located on the housing. After the air from the external environment dissipates heat from the drive motor, it can be discharged through the first air outlet channel and first... The air is discharged to the outside of the housing through the outlet hole; when the fan blades in the negative pressure fan blade assembly are rotating, the fan blades in the negative pressure fan blade assembly can draw air from the sewage tank and discharge it to the outside of the housing through the second air outlet channel and the second air outlet hole located on the housing. That is, in the existing structure of the fabric washing machine, the air duct for exhausting the negative pressure fan blade assembly and the air duct for exhausting the heat dissipation fan blade assembly are two independent air duct structures. In order to form two independent air duct structures, two independent exhaust pipes need to be configured, which has the disadvantages of complex air duct structure and high component cost. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an air duct structure for a fabric cleaning machine, which simplifies the air duct structure in the fabric cleaning machine and reduces the cost of the parts of the fabric cleaning machine.

[0004] This utility model provides an air duct structure for a fabric washing machine, including a housing assembly, a motor bracket, an exhaust hood, a drive motor, a negative pressure fan assembly, and a heat dissipation fan assembly. The heat dissipation fan assembly is disposed inside the lower end of the drive motor and is drively connected to the lower end of the drive motor's rotating shaft. The lower end of the motor bracket is fixed to the inner bottom of the housing assembly and is circumferentially sealed to the housing assembly. The exhaust hood is fixed to the upper end of the motor bracket and is circumferentially sealed to the motor bracket. An annular partition is integrally formed on the inner side of the motor bracket, and the inner side of the partition forms a mounting cavity in which the drive motor is fixed. The exhaust hood and the inner cavity of the motor bracket located above the partition form an exhaust chamber. The negative pressure fan assembly is disposed in the exhaust chamber, and the air inlet end of the negative pressure fan assembly is connected to and circumferentially sealed to the air outlet located on the exhaust hood. The lower outer edge abuts against the upper end of the partition and is circumferentially sealed to the partition. The negative pressure fan assembly is connected to the upper end of the shaft in the drive motor. The lower end of the partition is inserted into the housing assembly and is circumferentially sealed. An air inlet is formed on the inner side of the lower end of the partition. The lower end of the drive motor is inserted into the air inlet and is circumferentially sealed. The air inlet is connected to several air inlet holes on the side wall of the housing assembly through an air inlet channel on the inner side of the housing assembly. The outer circumferential wall of the partition and the inner circumferential wall of the lower part of the motor bracket form an annular air guide cavity. A first channel for connecting the exhaust cavity and the air guide cavity is provided at the upper edge of the partition. A second channel for connecting the mounting cavity and the air guide cavity is provided on the side wall of the partition. The air guide cavity is connected to several air outlet holes on the side wall of the housing assembly through an air outlet channel on the inner side of the housing assembly.

[0005] By adopting the above-mentioned structure, the air from the negative pressure fan assembly and the air from the heat dissipation fan assembly can be simultaneously discharged to the outside of the housing assembly through the air guide cavity, the air outlet channel and the air outlet hole. That is, the negative pressure fan assembly and the heat dissipation fan assembly share a common exhaust channel structure, thereby simplifying the air duct structure in the fabric cleaning machine and reducing the component cost of the fabric cleaning machine.

[0006] In one possible implementation, a first sealing ring is fitted between the air inlet of the negative pressure fan assembly and the air outlet located on the exhaust hood. The upper end face of the outer edge of the first sealing ring is tightly sealed against the inner top surface of the exhaust hood, and the lower end face of the outer edge of the first sealing ring is tightly sealed against the outer edge of the air inlet of the negative pressure fan assembly. With this structure, under the action of the first sealing ring, the first sealing ring can reliably seal the gap between the negative pressure fan assembly and the exhaust hood. Thus, when the drive motor drives the fan blades in the negative pressure fan assembly to rotate, the negative pressure fan assembly can reliably extract air from the sewage tank through the air outlet located on the exhaust hood and the exhaust pipe connected to the air outlet.

[0007] In one possible implementation, an annular boss is provided at the center of the upper end face of the first sealing ring. The annular boss is inserted into the exhaust port on the exhaust hood and is tightly sealed against the inner peripheral wall of the exhaust port on the exhaust hood. By adopting this structure, under the action of the annular boss, since the annular boss is inserted into the exhaust port on the exhaust hood and tightly sealed against the inner peripheral wall of the exhaust port on the exhaust hood, the circumferential sealing effect between the first sealing ring and the exhaust hood can be improved.

[0008] In one possible implementation, the upper end of the partition is provided with a first annular step, and a second sealing ring is embedded in the first annular step. The outer peripheral wall of the second sealing ring is tightly sealed to the inner peripheral wall of the first annular step. The upper end of the second sealing ring is provided with an annular slot, and the bottom of the outer edge of the negative pressure fan assembly is provided with an annular insertion part. The insertion part is inserted into the annular slot and abuts against the inner bottom of the annular slot. The inner and outer peripheral walls of the insertion part are respectively tightly sealed to one of the inner side walls of the annular slot. With this structure, under the action of the second sealing ring, the outer edge of the lower end of the negative pressure fan assembly can reliably achieve circumferential sealing with the upper end of the partition, and under the action of the first annular step, the second sealing ring, and the insertion part, the negative pressure fan assembly can be reliably supported.

[0009] In one possible implementation, the lower end of the drive motor is provided with an annular reduced diameter section, and a third sealing ring is sleeved on the outside of the reduced diameter section. Both the reduced diameter section and the third sealing ring are inserted into the air inlet. The third sealing ring is tightly sealed to the outer peripheral wall of the reduced diameter section and the inner peripheral wall of the air inlet. With this structure, under the action of the third sealing ring, the lower end of the drive motor and the air inlet can reliably achieve circumferential sealing. Thus, when the drive motor drives the fan blades in the cooling fan assembly to rotate, the fan blades in the cooling fan assembly can reliably draw air from the external environment through the air inlet, air inlet channel and air inlet hole.

[0010] In one possible implementation, a third annular step is formed on the outer peripheral wall of the drive motor at the upper end of the reduced diameter section, and a fourth annular step is provided on the inner peripheral wall of the partition at the upper end of the air inlet. An annular protrusion is provided on the outer peripheral wall at the upper end of the third sealing ring, with the upper end of the annular protrusion abutting against the third annular step and the lower end of the annular protrusion abutting against the fourth annular step. With this structure, the sealing effect between the lower end of the drive motor and the air inlet can be further improved after the annular protrusion abuts against the third and fourth annular steps. In addition, the fourth annular step can reliably support the third sealing ring and the drive motor. Attached Figure Description

[0011] Figure 1 This is the first three-dimensional structural diagram of a fabric cleaning machine; Figure 2 This is a second three-dimensional structural diagram of the fabric cleaning machine; Figure 3 This is the first cross-sectional structural diagram of a fabric cleaning machine; Figure 4 for Figure 3 A magnified structural diagram of point A in the middle; Figure 5 for Figure 3 A magnified structural diagram of point B in the middle; Figure 6 This is the second cross-sectional view of the fabric cleaning machine. Detailed Implementation

[0012] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0013] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0014] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0015] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] See Figure 1-6As shown in the figure, this application discloses an air duct structure for a fabric cleaning machine, including a housing assembly 1, a motor bracket 2, an exhaust hood 3, a drive motor 4, a negative pressure fan assembly 5, and a heat dissipation fan assembly 6. The heat dissipation fan assembly 6 is disposed on the inner side of the lower end of the drive motor 4 and is connected to the lower end of the rotating shaft in the drive motor 4. The lower end of the motor bracket 2 is fixed to the inner bottom of the housing assembly 1 and is circumferentially sealed to the housing assembly 1. The exhaust hood 3 is fixed to the upper end of the motor bracket 2 and is circumferentially sealed to the motor bracket 2. An annular partition 21 is integrally formed on the inner side of the motor bracket 2, and an installation cavity 22 is formed on the inner side of the partition 21. The drive motor 4 is fixed in the installation cavity 22. The exhaust hood 3 and the motor located above the partition 21 are connected. The inner cavity of the bracket 2 forms an exhaust chamber 23. The negative pressure fan assembly 5 is disposed in the exhaust chamber 23. The air inlet end of the negative pressure fan assembly 5 is connected to the air outlet located on the exhaust hood 3 and is circumferentially sealed. The outer edge of the lower end of the negative pressure fan assembly 5 is tightly pressed against the upper end of the partition 21 and is circumferentially sealed with the partition 21. The negative pressure fan assembly 5 is connected to the upper end of the rotating shaft in the drive motor 4. The lower end of the partition 21 is inserted into the housing assembly 1 and is circumferentially sealed. The inner side of the lower end of the partition 21 forms an air inlet 24. The lower end of the drive motor 4 is inserted into the air inlet 24 and is circumferentially sealed. The air inlet 24 is connected to several air inlet holes 12 disposed on the side wall of the housing assembly 1 through the air inlet channel 11 disposed inside the housing assembly 1. The partition 21 is connected to the inner peripheral wall of the lower part of the motor bracket 2 to form an annular air guide cavity 25. A first channel 26 for connecting the exhaust cavity 23 and the air guide cavity 25 is provided at the upper edge of the partition 21. A second channel 27 for connecting the mounting cavity 22 and the air guide cavity 25 is provided on the side wall of the partition 21. The air guide cavity 25 is connected to a plurality of air outlet holes 14 provided on the side wall of the housing assembly 1 through an air outlet channel 13 provided inside the housing assembly 1. The upper end of the exhaust port in the above-mentioned exhaust hood is connected to the upper end of the sewage tank in the fabric washing machine through an exhaust pipe. When the present invention is working, the drive motor can drive the fan blades in the negative pressure fan blade assembly and the fan blades in the heat dissipation fan blade assembly to... Synchronous rotation: When the fan blades in the negative pressure fan assembly rotate, the negative pressure fan assembly can draw air from the wastewater tank of the fabric washing machine through the exhaust port and exhaust pipe located on the exhaust hood to create negative pressure in the wastewater tank. The air from the wastewater tank flows through the negative pressure fan assembly and the first channel and can enter the air guide cavity. When the fan blades in the heat dissipation fan assembly rotate, the heat dissipation fan assembly can draw air from the external environment through the air inlet channel and air inlet hole. After the air from the external environment flows through the heat dissipation fan assembly and cools the drive motor, it can enter the air guide cavity through the second channel. The two airflows entering the air guide cavity can be discharged to the outside of the housing assembly through the air outlet channel and air outlet hole at the same time.

[0017] A first sealing ring 7 is embedded between the air inlet end of the negative pressure fan assembly 5 and the air outlet located on the exhaust hood 3. The upper end face of the outer edge of the first sealing ring 7 is tightly sealed to the inner top surface of the exhaust hood 3, and the lower end face of the outer edge of the first sealing ring 7 is tightly sealed to the outer edge of the air inlet end of the negative pressure fan assembly 5. With this structure, under the action of the first sealing ring, the first sealing ring can reliably seal the gap between the negative pressure fan assembly and the exhaust hood. Thus, when the drive motor drives the fan blades in the negative pressure fan assembly to rotate, the negative pressure fan assembly can reliably extract air from the sewage tank through the air outlet located on the exhaust hood and the exhaust pipe connected to the air outlet.

[0018] An annular boss 71 is provided in the middle of the upper end face of the first sealing ring 7. The annular boss 71 is inserted into the exhaust port on the exhaust hood 3 and is tightly sealed against the inner circumferential wall of the exhaust port on the exhaust hood 3. With this structure, under the action of the annular boss, since the annular boss is inserted into the exhaust port on the exhaust hood and is tightly sealed against the inner circumferential wall of the exhaust port on the exhaust hood, the circumferential sealing effect between the first sealing ring and the exhaust hood can be improved.

[0019] The upper end of the partition 21 is provided with a first annular step 211, and a second sealing ring 8 is embedded in the first annular step 211. The outer peripheral wall of the second sealing ring 8 is tightly sealed with the inner peripheral wall of the first annular step 211. The upper end of the second sealing ring 8 is provided with an annular slot 81. The bottom of the outer edge of the negative pressure fan assembly 5 is provided with an annular insertion part 51. The insertion part 51 is inserted into the annular slot 81 and tightly abuts against the inner bottom of the annular slot 81. The inner peripheral wall and the outer peripheral wall of the insertion part 51 are respectively tightly sealed with one of the inner side walls of the annular slot 81. With this structure, under the action of the second sealing ring, the outer edge of the lower end of the negative pressure fan assembly can reliably achieve circumferential sealing with the upper end of the partition. Under the action of the first annular step, the second sealing ring and the insertion part, the negative pressure fan assembly can be reliably supported.

[0020] The lower end of the drive motor 4 is provided with an annular reduced diameter section 41. A third sealing ring 9 is sleeved on the outside of the reduced diameter section 41. Both the reduced diameter section 41 and the third sealing ring 9 are inserted into the air inlet 24. The third sealing ring 9 is tightly sealed to the outer peripheral wall of the reduced diameter section 41 and the inner peripheral wall of the air inlet 24. With this structure, under the action of the third sealing ring, the lower end of the drive motor and the air inlet can reliably achieve circumferential sealing. Thus, when the drive motor drives the fan blades in the cooling fan assembly to rotate, the fan blades in the cooling fan assembly can reliably draw air from the external environment through the air inlet, air inlet channel and air inlet hole.

[0021] A third annular step 42 is formed on the outer peripheral wall of the drive motor 4 at the upper end of the reduced diameter portion 41. A fourth annular step 212 is provided on the inner peripheral wall of the partition 21 located at the upper end of the air inlet 24. An annular protrusion 91 is provided on the outer peripheral wall at the upper end of the third sealing ring 9. The upper end of the annular protrusion 91 abuts against the third annular step 42, and the lower end of the annular protrusion 91 abuts against the fourth annular step 212. With this structure, under the action of the annular protrusion, after the annular protrusion abuts against the third and fourth annular steps, the sealing effect between the lower end of the drive motor and the air inlet can be further improved. In addition, under the action of the fourth annular step, the support function for the third sealing ring and the drive motor can be reliably achieved.

[0022] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A kind of cloth washing machine air duct structure, including shell assembly (1), motor support (2), exhaust hood (3), drive motor (4), negative pressure fan blade assembly (5) and heat dissipation fan blade assembly (6);The heat dissipation fan blade assembly (6) is set in the inner side of the lower end of drive motor (4) and is drivenly connected with the lower end of the rotating shaft in drive motor (4), the lower end of motor support (2) is fixed on the inner bottom of shell assembly (1) and is circumferentially sealed with shell assembly (1), the exhaust hood (3) is fixed on the upper end of motor support (2) and is circumferentially sealed with motor support (2);Its characterized in that: The inner side of the motor bracket (2) is integrally formed with a ring-shaped partition (21), and the inner side of the partition (21) forms an installation cavity (22). The drive motor (4) is fixed in the installation cavity (22). The exhaust hood (3) cooperates with the inner cavity of the motor bracket (2) located above the partition (21) to form an exhaust cavity (23). The negative pressure fan blade assembly (5) is set in the exhaust cavity (23). The air inlet end of the negative pressure fan blade assembly (5) is connected to the air outlet located on the exhaust hood (3) and circumferentially sealed. The outer edge of the lower end of the negative pressure fan blade assembly (5) is tightly pressed against the upper end of the partition (21) and circumferentially sealed with the partition (21). The negative pressure fan blade assembly (5) is connected to the upper end of the rotating shaft in the drive motor (4). The lower end of the partition (21) is inserted into the housing assembly (1) and circumferentially sealed. The inner side of the lower end of the partition (21) An air inlet (24) is formed. The lower end of the drive motor (4) is inserted into the air inlet (24) and circumferentially sealed. The air inlet (24) is connected to several air inlets (12) on the side wall of the housing assembly (1) through an air inlet channel (11) on the inner side of the housing assembly (1). The outer peripheral wall of the partition (21) is connected to the inner peripheral wall of the lower part of the motor bracket (2) to form a ring-shaped air guide cavity (25). A first channel (26) for connecting the exhaust cavity (23) and the air guide cavity (25) is provided at the upper edge of the partition (21). A second channel (27) for connecting the mounting cavity (22) and the air guide cavity (25) is provided on the side wall of the partition (21). The air guide cavity (25) is connected to several air outlets (14) on the side wall of the housing assembly (1) through an air outlet channel (13) on the inner side of the housing assembly (1).

2. The air duct structure of the cloth washing machine according to claim 1, wherein: A first sealing ring (7) is installed between the air inlet end of the negative pressure fan blade assembly (5) and the air outlet located on the exhaust hood (3). The upper end face of the outer edge of the first sealing ring (7) is tightly sealed to the inner top surface of the exhaust hood (3), and the lower end face of the outer edge of the first sealing ring (7) is tightly sealed to the outer edge of the air inlet end of the negative pressure fan blade assembly (5).

3. The air duct structure of the cloth washing machine according to claim 2, wherein: An annular boss (71) is provided in the middle of the upper end face of the first sealing ring (7). The annular boss (71) is inserted into the exhaust port on the exhaust hood (3) and is tightly sealed to the inner peripheral wall of the exhaust port on the exhaust hood (3).

4. The air duct structure of the cloth washing machine according to claim 1, wherein: The upper end of the partition (21) is provided with a first annular step (211), and a second sealing ring (8) is embedded on the first annular step (211). The outer peripheral wall of the second sealing ring (8) is tightly sealed with the inner peripheral wall of the first annular step (211). The upper end of the second sealing ring (8) is provided with an annular slot (81). The bottom of the outer edge of the negative pressure fan blade assembly (5) is provided with an annular insertion part (51). The insertion part (51) is inserted into the annular slot (81) and tightly abuts against the inner bottom of the annular slot (81). The inner peripheral wall and the outer peripheral wall of the insertion part (51) are respectively tightly sealed with one of the inner side walls of the annular slot (81).

5. The air duct structure of the cloth washing machine according to claim 1, wherein: The lower end of the drive motor (4) is provided with a ring-shaped reduced diameter section (41). A third sealing ring (9) is sleeved on the outside of the reduced diameter section (41). Both the reduced diameter section (41) and the third sealing ring (9) are inserted into the air inlet (24). The third sealing ring (9) is tightly sealed to the outer peripheral wall of the reduced diameter section (41) and the inner peripheral wall of the air inlet (24).

6. The air duct structure of the cloth washing machine according to claim 5, wherein: A third annular step (42) is formed on the outer peripheral wall of the drive motor (4) and at the upper end of the reduced diameter section (41). A fourth annular step (212) is provided on the inner peripheral wall of the partition (21) located at the upper end of the air inlet (24). An annular protrusion (91) is provided on the outer peripheral wall at the upper end of the third sealing ring (9). The upper end of the annular protrusion (91) is pressed against the third annular step (42), and the lower end of the annular protrusion (91) is pressed against the fourth annular step (212).

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