FR3078480A3 - VACUUM WITH AUXILIARY MOTOR - Google Patents

Abstract

The present utility model relates to a vacuum cleaner having a main body and a suction head connected to the main body through an air hose. The main body comprises a main motor and a main rotor driven by the main motor. The suction head has an auxiliary motor connected to the auxiliary rotor and configured to drive the auxiliary rotor. Both the main rotor and the auxiliary rotor are located in the duct of the vacuum cleaner. This utility model can use two lower power motors to combine the suction effect of the high power motor. Not only does this reduce costs and improve overall efficiency, but it also reduces noise.

Description

Description

Title of the invention: Vacuum cleaner with auxiliary motor

Technical Field [0001] This utility model relates to a vacuum cleaner, and in particular relates to a mechanism for generating suction of a vacuum cleaner.

[0002] BACKGROUND

The vacuum cleaner sucks dust or the like on the ground or items in a container under the effect of the suction force generated by the rotor driven by the motor. Large household vacuum cleaners typically have a main body that includes a power source, a motor, a control circuit, and a suction head that can be operated by the user by hand, and is positioned relative to the body. . The suction head is connected to the main body by an air pipe, so that the negative pressure generated by the rotor of the main body causes suction of dust impurities and the like in the suction head together with the air, so that they reach the container of the main body through the air hose.

A problem associated with the vacuum cleaners of the prior art is that the suction force at the suction head is not equal to the original suction force generated by the motor and the rotor in the main body. Conversely, the longer the length of the air channel of the vacuum cleaner (eg air hose) increases, the more the suction force at the air inlet of the suction head is reduced. In order to maintain a desired suction effect, the prior art vacuum cleaners use high power motors. However, the use of high-power motors not only has a considerable impact on power consumption, but also makes circuit design more complex, and high power motors give rise to higher electrical requirements. different circuit components.

SUMMARY [0005] Therefore, an embodiment of the present utility model provides a vacuum cleaner having a body and a suction head connected to the main body through an air hose. The main body comprises a main motor and a main rotor driven by the main motor. The suction head has an auxiliary motor connected to the auxiliary rotor and configured to drive the auxiliary rotor. Both the main rotor and the auxiliary rotor are located in the air channel of the vacuum cleaner.

[0007] Preferably, the suction head has a generally rectangular shape. The auxiliary motor and the auxiliary rotor are located in a substantially central position along the longitudinal direction of the rectangle.

In one embodiment, the power difference between the main motor and the auxiliary motor is 40% maximum.

In another embodiment, the main body further comprises a power source. A cable is also connected between the suction head and the main body. The auxiliary motor is powered by the power source through the cable.

The vacuum cleaner according to the present utility model thus eliminates the use of a single motor of high power and uses two motors to collectively produce a suction force. Both engines have a lower power but as they work together in the manner of a relay race, they produce a suction force similar to that of a single engine of great power. This design makes the design of the vacuum cleaner circuit simpler and eliminates the need to configure high-power components to meet the operating requirements of high power motors. In other words, the present utility model can use two lower power motors in combination to achieve the suction effect of a high power engine. Not only does this reduce costs and improve overall efficiency but also reduce noise.

Brief Description of the Drawings [0011] The performance and advantages of this utility model will be better understood by reference to the remainder of the description and the accompanying drawings. The same components in the drawings have the same reference numbers. In some cases, a secondary symbol is placed after a reference number and a hyphen to represent one of several similar components. When referring to a reference number without specifically indicating an existing secondary symbol, it refers to all of these similar components.

Figure 1 illustrates a schematic view of the appearance of a vacuum cleaner according to the first embodiment of the present utility model.

Figure 2 is a schematic view illustrating the position of an auxiliary motor in the suction head of the vacuum cleaner of Figure 1.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS [0015] Embodiments of the present utility model utilize two motors and two rotors to collectively generate a draw such that two lower power motors together produce a suction equivalent to that of a motor of great power. Other different advantages and benefits provided by the various embodiments of this utility model will be readily apparent from the following description.

Referring now to FIG. 1, a first embodiment of the present utility model is an aspirator comprising components well known to those skilled in the art, such as a main body 20, a suction head 24, and an air pipe 22 connecting the main body 20 and the suction head 24. The main body contains, (not shown), a power source, a main motor connected to the source of power, a main rotor connected to the main motor and driven by the main motor, a control part, a user switch, a dust bag, and the like. The power source may be an AC adapter suitable for connection to a mains power supply, or a battery pack. The main rotor is located in the duct of the main body 22, and one end of the duct is connected to the pipe 22, and the other end of the duct is connected to the dust bag, so that the impurities of dust and the like which are sucked from the pipe 22 through the main body 20 can be drawn into the dust bag under the effect of the suction force (negative pressure) generated by the main rotor. The constructions and working principle of the above components are well known to those skilled in the art and will not be described here.

One end of the pipe 22 is connected to the conduit of the main body 20, and the other end is connected to the conduit of the suction head 24, and together they constitute the air channel of the whole of the vacuum cleaner, that is to say that the air channel goes from the air intake of the suction head 24 to the dust bag of the main body 20. As clearly illustrated in Figure 2, the suction head 24 has an auxiliary motor 28 located in the central position of the suction head 24. The central position mentioned in this embodiment is based on the substantially rectangular shape of the suction head 24, and the central position is located at a point in the center in the longitudinal direction of the rectangle. As shown in FIG. 2, such a central position causes the auxiliary motor 28 and the auxiliary rotor (not shown) attached thereto to be aligned with an air outlet (not shown) of the hose 22 on the head In addition, an electric cable 26 is provided between the main body 20 and the suction head 24 in addition to the pipe 22. The cable 26 connects the power source described herein. above the auxiliary motor 28 in the suction head 24 so that it can be powered. Preferably, the cable 26 may be attached to the pipe 22 to change the shape or movement together therewith.

The power of the main motor and that of the auxiliary motor in the vacuum cleaner illustrated in Figures 1 and 2 are relatively small and the power difference between these two motors is not very important. Preferably, the power difference between the auxiliary motor of the suction head and the main motor of the main body is 40% maximum (based on the larger engine).

Let us now examine the working principle of the vacuum cleaner illustrated in FIGS.

Claims (1)

2. When the power source of the vacuum cleaner is connected, the main motor and the auxiliary motor rotate at the same time, and together generate a suction force because the main rotor and the auxiliary rotor are simultaneously located inside. of the air channel of the vacuum cleaner. Specifically, the main motor and the auxiliary motor operate in the manner of a relay race. The auxiliary motor in the suction head increases the suction force of the front part so that dust impurities near the suction head are relatively easily sucked into the suction head through the rotor auxiliary. At the same time, the main motor on the main body increases the flow of air so that the dust impurities sucked into the suction head advance further through the air pipe to the main body. This design achieves the effect of a single, high power engine with two lower power engines, which reduces costs, increases overall efficiency and reduces noise. Therefore, after knowing several embodiments, one skilled in the art will recognize that various modifications, other structures, and equivalents can be used without departing from the spirit of this utility model. Therefore, the present description should not be considered as limiting the scope of the invention as defined by the following claims. For example, the aforementioned suction head has a substantially rectangular direction and the auxiliary motor and the auxiliary rotor are located in the substantially central position along the longitudinal direction of the rectangle. However, those skilled in the art will appreciate that other types of suction heads may also be configured with auxiliary motors according to this utility model, such as a gun-shaped suction head, etc. A vacuum cleaner comprising: a main body comprising a main motor and a main rotor driven by the main motor; a suction head connected to the main body by an air pipe; the suction head further comprising an auxiliary motor connected to an auxiliary rotor and configured to drive the auxiliary rotor; the main rotor and the auxiliary rotor are both located in an air channel of the vacuum cleaner. [Claim 2] Vacuum cleaner according to claim 1, wherein the suction head has a substantially rectangular shape; the auxiliary motor and the auxiliary rotor being located in a substantially central position along the longitudinal direction of the rectangle. [Claim 3] Vacuum cleaner according to claim 1, wherein the power difference between the main motor and the auxiliary motor is 40% maximum. [Claim 4] Vacuum cleaner according to claim 1, wherein the main body further comprises a power source; a cable being further connected between the suction head and the main body; and the auxiliary motor being powered by the power source through the cable.