CN2260563Y - Vacuum cleaner to isolate system exhaust from cooling exhaust - Google Patents

Abstract

The utility model provides a system exhaust and the isolated dust catcher of cooling exhaust have put the filter in that the dust collection bucket is built-in, are provided with the power part between filter screen and outer clamshell, and the power part is by sitting the base of putting in filter inside, and the cover is sat the power component in the base and is detained the shroud that covers on moving the subassembly upper portion and constitute its characterized in that: the base is a descending ladder-shaped pot body with the upper size and the lower size, a closed lower system exhaust passage is formed after the cover cap is buckled with the base, an independent cooling exhaust passage is formed after the cover cap is buckled with a gasket part of the power assembly, and the air inlet grid holes are formed in the circumferential direction of the lower part of the shell cover in the shape of a buckle bowl.

Description

Vacuum cleaner to isolate system exhaust from cooling exhaust

The utility model relates to a vacuum cleaner, in particular to a vacuum cleaner in which system exhaust and cooling exhaust are separated.

The structure of the current wet and dry vacuum cleaner is shown in Figure 1 and Figure 2. It is composed of a power part 1, a filter part 2 and a dust bucket 3. The exhaust of the system is driven by the motor 13 of the power part 1. The gas impeller 14 rotates and sucks the air into the dust collecting bucket 3 by its central suction hole 17, and then is discharged into the chamber between the base 8 and the cover 9 by the peripheral exhaust hole 16 of the impeller 14, and most of the gas is drawn from the The exhaust pipe 21 connected to the chamber is discharged, and a small part of gas is discharged by the cover 9 communicated with the chamber and the exhaust gap 31 on the periphery of the outer cover 10 . And the cold wind of cooling motor 13 is produced by the fan 15 that the motor 13 top dresses, and the exhaust route of cold wind is sucked by the air inlet 32 of casing 10, enters cover 9 and outer casing through motor cover 24 belows. 10, and finally exhausted from the exhaust gap 31. It is not difficult to see from the above-mentioned system exhaust and cooling exhaust paths that a part of the airflow of the system exhaust is between the cover 9 and the outer cover 10 and the cooling airflow Partly blended together. Especially because the exhaust pressure of the system is greater than the cooling exhaust pressure, therefore, the dust and water vapor entrained in the system exhaust flow will enter the motor 13 along the exhaust hole below the motor cover 24 to generate dust and water vapor pollution. It is easy to lead to the instability of the motor's working performance and the reduction of its life.

In addition, the air inlet 32 for cooling exhaust is provided on the top of the housing cover 10, which is easy to leak into impurities and water drops and damage the motor. In addition, the base 8 is a flat plate, and its pressure is limited. When in use, the vacuum suction below it will cause the flat plate to bend and deform.

The purpose of this utility model is to overcome the above-mentioned shortcomings and deficiencies of the prior art, and to provide a motor in which the system exhaust and cooling exhaust are separated, which is stable and not easy to be damaged, and external impurities are not easy to fall into the inside of the outer casing. Vacuum cleaner with a non-deformable base where the system exhaust is separated from the cooling exhaust.

The purpose of this utility model is achieved by the following technical solutions:

There is a filter built into the dust collecting bucket. The filter is composed of a frame and a filter screen covering the frame. A power part is arranged between the filter screen and the outer cover. The power part is composed of a The base is composed of the power assembly seated in the base and the cover cover on the upper part of the dynamic assembly. The bottom of the base is provided with an air intake grille hole that communicates with the filter and the surrounding exhaust holes of the suction impeller in the upper power assembly. The power assembly is composed of a motor, an impeller combined with the lower end of the motor output shaft, and a cooling fan combined with the upper end of the motor. The closed lower system exhaust passage, and the cover and the gasket part of the power assembly form an independent cooling exhaust passage, and the air intake grid holes are arranged in the lower circumferential direction of the button bowl-shaped housing cover.

Visible from above: the remarkable effect of the present utility model is:

First: Due to the use of the stepped basin-shaped base, the system exhaust channel and the cooling exhaust channel are isolated from each other, preventing impurities and water vapor entrained in the system from being charged into the motor and affecting the normal operation of the motor. And the problem of service life solves the problem that when the base is a flat plate body, it is easy to deform and not tightly sealed when it is subjected to negative pressure.

No. 2: The air intake grille hole is set in the lower part of the outer casing to prevent external impurities, rainwater or dripping water from leaking into the motor.

Concrete structure of the present utility model is realized by following embodiment and accompanying drawing thereof:

Fig. 1 is a structural perspective view of a conventional vacuum cleaner.

Fig. 2 is a structural sectional view of the upper half in Fig. 1 .

Fig. 3 is a perspective view of the structure of the utility model.

FIG. 4 is an exploded view of the structure of FIG. 3 .

Fig. 5 is an enlarged cross-sectional view of the combined structure of the power part 1 in Fig. 4 .

The specific structure of the utility model will be described in detail below in conjunction with accompanying drawings 3-5.

The utility model has a dust collection bucket 3, and a filter part 2 is placed in the dust collection bucket 3, and a power device 1 is housed between the lower open outer shell cover 10 and the dust collection bucket 3, and the power device 1 is formed by the bottom base 8. The power assembly 7 and the cover 9 installed on the upper part of the base 8 are composed of a joint 20 connected to the exhaust pipe 21 on the outer cover 10 on the cover 9. The power assembly 7 is connected to the motor 13 by the motor 13. The cooling fan 15 on the upper part of the 13 outlet shaft and the suction impeller 14 connected to the lower part of the motor 13 outlet shaft are formed. The bottom of the base 8 is provided with a buoy 11 and a buoy carriage 12. The center of the base 8 is provided with a suction impeller 14 located on the upper part of the base. Connected air intake grid holes 17, the periphery of the suction impeller 14 has an exhaust hole 15, it is characterized in that: the base 8 is a stepped pot-shaped shell, and the air intake grid holes 17 are set in the center of the bottom wall of the lowermost pelvic cavity of the base 8 and is aligned with the central suction port of the suction impeller 14, on the top of the suction impeller 14 is provided with a ring-shaped flange 29 that is pressed and sealed with the lower convex ring flange 29 of the cover 9 and isolates the motor 13 from the suction impeller 14. Gasket 18, motor cover 24 protrudes from the middle part of cover 9, and intake pipe seat 25 extends along the side of motor cover 24. 28. The top wall of the motor cover 24 is provided with an air intake grid hole 26 communicated with the intake pipe 28, and the lower open bowl-shaped shell cover 10 is connected with the upper step surface 81 of the stepped basin-shaped base 8 to form a peripheral exhaust. gap 31, the upper step surface 81 of the stepped basin-shaped base 8 is provided with an annular card groove 22 that is inserted and sealed with the downturned ring edge 91 of the cover 9, and the system exhaust channel 34 is formed by the stepped basin-shaped base 8. The lower part of the independent partition space formed after the cavity and the cover 9 are buckled, the peripheral exhaust hole 16 of the suction impeller 14 and the exhaust pipe 21 are formed. The air intake pipe 28 formed afterward, the air intake grid hole 26 on the top of the motor cover 24 and the intake grid hole 32 on the outer shell cover 10 are formed. 9 and the independent exhaust passage formed by the exhaust gap 31 between the outer cover 10. See Figures 3 through 5.

The utility model is characterized in that:

The air intake grid hole 32 on the housing cover 10 is provided at the lower part of the peripheral side of the housing cover, corresponding to the intake pipe cover 27 inside it. See Figures 3 through 5.

The exhaust passage 34 of the system and the exhaust passage 36 of the cooling air flow are closed and independently constitute two exhaust passages, and the lower part of the gasket 18 nested by the upper part of the suction impeller 14 in the power unit 1 is completely accommodated in the exhaust passage 34 , the part above the sealing gasket 18 that is placed on the upper part of the suction impeller 14 in the moving device 1 is completely accommodated in the cavity formed by the motor cover 24, on the lower pelvic wall of the base 8 with two stepped pelvic cavities A nut column 19 for connecting the power assembly 7 is provided, and a sealing gasket 23 is added at the joint between the exhaust joint 20 and the exhaust pipe 21 . See Figures 3 and 4.

The working principle of the utility model is as follows:

The motor 13 is started by turning on the power switch 33, so that the impeller 14 and the cooling fan 15 rotate simultaneously, see Fig. 4 and Fig. 5, wherein the air suction impeller 14 passes the air inside the filter screen 5 in the inner chamber of the dust collecting bucket 3 through the base 8 The air intake grid hole 17 on the bottom wall is sucked into its central hole and discharged to the system exhaust channel 34 through its peripheral exhaust hole 16. During the suction and discharge process, a cover for the dust collection bucket 3 and its interior is naturally formed. The filter screen 5 wrapped on the skeleton 4 performs the function of vacuum adsorption, so that the entrained dust, micro-garbage and water from the outside are continuously sucked into the dust collection bucket 3 through the external connection pipe and the suction port 6. At the same time, in order to strengthen the protection of the motor Cooling, the rotation of the fan 15 sucks the external cold air through the suction channel 35, and then discharges it through the cooling motor. Since the system exhaust passage 34 is completely isolated from the cooling exhaust passage 36 to form a self-contained system, therefore, no dirty system exhaust will enter the motor, and no matter how high the system exhaust pressure is, it will never affect the motor. The unclean system exhaust airflow of normal work and life enters the working area of the motor.

Claims (3)

1. The vacuum cleaner which isolates the system exhaust from the cooling exhaust has a dust collection bucket (3), and a filter part (2) is placed inside the dust collection bucket (3). A power unit (1) is housed between the barrels (3), and the power unit (1) is composed of a lower base (8), a power unit (7) and a cover (9) mounted on the upper part of the base (8) Yes, there is a joint (20) on the cover (9) where the exhaust pipe (21) on the cover (10) is connected, and the power assembly (7) is connected to the upper part of the output shaft of the motor (13) by the motor (13). The heat dissipation fan (15) and the suction impeller (14) connected to the lower part of the motor (13) are composed of a buoy (11) and a buoy carriage (12) at the bottom of the base (8), and the center of the base (8) is opened. There is an air intake grid hole (17) connected to the interior of the suction impeller (14) located on its upper part, and the fixed side of the suction impeller (14) has an exhaust hole (16), and it is characterized in that: the base (8) is a step Basin-shaped housing, the air intake grid hole (17) is opened at the center of the bottom wall of the lowermost pelvic cavity of the base (8) and is aligned with the central suction port of the suction impeller (14), and on the top of the suction impeller (14) A sealing gasket (18) is sleeved with the lower protruding annular flange (29) of the cover (9) to buckle and seal and isolate the motor (13) from the suction impeller (14). The middle part of the cover (9) There is a motor cover (24) protruding above, and the air intake pipe seat (25) extends along the peripheral side of the motor cover (24), and the air intake pipe seat (25) is buckled with the air intake pipe cover (27) at the inner side of the outer casing (10) Form the intake pipe (28), the top wall of the motor cover (24) is provided with the air intake grid hole (26) communicated with the intake pipe (28), and the lower opening buckles the bowl-shaped housing cover (10) and the stepped basin-shaped base ( 8) The upper step surface (81) is interlocked to form a peripheral air gap (31), and the upper step surface (81) of the stepped basin-shaped base (8) is provided with a turn-down cover (9) The ring edge (91) is inserted into the sealed annular card groove (22), and the system exhaust channel (34) is a lower independent partition space formed by buckling the inner cavity of the stepped basin-shaped base (8) and the cover (9) 1. The peripheral exhaust hole (16) and the exhaust pipe (21) of the suction impeller (14) are formed, and the suction passage (35) of the cooling air flow is formed by buckling the outer casing (10) and the cover (9) The air intake pipe (28), the air intake grid hole (26) on the upper part of the motor cover (24) and the air intake grid hole (32) on the outer cover (10) are formed, and the discharge channel (36) of the cooling air flow is formed by the motor cover (24) An independent exhaust channel formed by an exhaust hole (30) at the periphery and an exhaust gap (31) between the cover (9) and the outer shell (10). 2. The vacuum cleaner with system exhaust and cooling exhaust isolated according to claim 1, characterized in that: the air intake grille hole (32) on the housing cover (10) is opened in the lower part of the outer shell peripheral side and its inner side The corresponding place of the intake pipe cover (27). 3. The vacuum cleaner in which system exhaust and cooling exhaust are isolated according to claim 1, characterized in that: the system exhaust passage (34) and the cooling air discharge passage (36) are closed and independently constitute two exhaust passages , the lower part of the sealing gasket (18) nested by the upper part of the suction impeller (14) in the power device (1) is completely accommodated in the exhaust passage (34), and the suction impeller in the power device (1) (14) The part above the sealing pad (18) placed on the upper part is completely accommodated in the cavity formed by the motor cover (24), and a connection is provided on the lower pelvic wall of the base (8) with two stepped pelvic cavities. The nut column (19) of the power assembly (7) is padded with a sealing gasket (23) at the joint of the exhaust joint (20) and the exhaust pipe (21).

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