RU2472420C2 - Vacuum cleaner - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: invention relates to a vacuum cleaner which contains at least one dust bag (11) designed to accommodate a container to collect dust, and at least one receiving chamber (12) for the air delivery device (13) with the suction inlet (15), and the dust bag (11) and the receiving chamber (12) are separated by a partition (14) from each other, and in the partition (14) there is an outlet (18) for the passage of air from the dust bag (11) to the air delivery device (13). For purposeful rejection of airflow along the partition (14) in the direction of the suction inlet (15) it is proposed to perform at least one corrugation (16), and at least one corrugation (16) will be directed along the main direction (22) of the flow on the partition (14).

EFFECT: increased suction power of the vacuum cleaner even in a compact design condition.

8 cl, 2 dwg

Description

Technical field

The invention relates to a vacuum cleaner according to the restrictive part of paragraph 1 of the claims.

State of the art

The suction power of the vacuum cleaner also depends on the shape of the dust bag. A dust bag is any area in which a dust bag is usually placed. The winding path of the intake air flow in the dust collector can lead to a decrease in suction power, in particular, if individual parts inside the housing will have a complex shape and will be located in a complex way.

Various technical solutions are known in the art, according to which the air flow inside the dust collector is deflected in order to optimize the suction power of the vacuum cleaner. German patent application DE 10148509 B4 proposes a vacuum cleaner for cleaning the floor, which contains a collector for suction and collection of particles, as well as a receiving chamber for a suction device, the collector and the receiving chamber being separated from each other by a partition, and in the partition there is an inlet for air flow heading from the manifold to the suction device. It is proposed that a guide funnel for air, which tapers in the direction of the suction device, be provided in the partition as an inlet intended for connecting the collector to the suction device of the receiving chamber, and the inlet surface of this funnel occupies a significant part of the partition surface. At the base of the funnel there is a protective element protruding in the direction of the collector. Due to the fact that a guide funnel for air is provided as an inlet in the partition, the loss of air pressure on the way from the collector to the suction device is prevented as much as possible, which positively affects the suction power of the vacuum cleaner.

Disclosure of invention

The objective of the invention is to develop a vacuum cleaner, the suction power of which will be increased even in a compact design.

This problem is solved according to the invention by the features disclosed in the independent claim.

A vacuum cleaner made according to the invention contains at least one dust collector designed to accommodate a dust collecting container, and at least one receiving chamber for an air injection device with a suction opening, the dust collector and the receiving chamber being separated from each other by a partition moreover, in the partition there is an outlet for passing air from the dust collector to the air discharge device. At least one curved groove or corrugation is provided for purposefully deflecting the air flow along the septum in the direction of the suction opening, wherein at least one groove or corrugation is directed along the main flow direction on the septum. In this way, resistance to air flow is advantageously reduced. Thanks to the guide grooves / corrugations for air, swirls are prevented as much as possible, which can impair the flow of air. Essentially, it is possible to obtain an improved directional air flow through the air inlet towards the air injection device. As a result, the suction power of the vacuum cleaner can be increased. In addition, the partition is expediently further enhanced by grooves. As a result, the stability of the partition increases and material is saved. In the future, for brevity, the term corrugation will be used, which also means a curved groove.

In a preferred embodiment, the partition does not have one separate corrugation, but several parallel corrugations, which are preferably located in the upper part of the partition, remote from the bottom plate. The corrugations can be located essentially parallel to the bottom plate and have essentially the same length. With the arrangement of the corrugations with an offset along the length axis relative to each other, the air direction function can be improved. The depth of the corrugations is approximately 2 mm (minimum) to 5 mm (maximum). The corrugations are located at a distance of at least about 1 cm from each other. It turned out to be an advantageous option, in which, on the partition, there are essentially five guide corrugations for air.

In a particularly preferred embodiment, on the partition as an inlet intended to connect the dust collector to the suction device in the receiving chamber, there is a guide funnel for air, which tapers towards the suction device, and the inlet surface of this funnel occupies a significant part of the surface of the partition. In this case, the corrugations are located in the guide funnel for air, at least in places. In a particularly preferred embodiment, the corrugations are located in the guide funnel for air and end immediately in front of the suction port, which has a particularly large effect on the deviation of the air flow on the partition in the direction of the suction port.

In an advantageous embodiment, for cooling at least one electronic component, a cooling device can be provided that cooperates effectively with the cooling fins on the partition. As such a cooling device for an electronic component of an engine of a blower device, a triac cooling by means of an electronic component with semiconductor layers is proposed (patent application DE 4310747 C2). In such a triac cooling device, ambient or cooling air is driven over the triac, whereby heated air is again supplied to the blower device through the guide funnel for air. The cooling fins are located on the side of the partition facing the dust collector and serve to cool the air flow in the costal structure, as well as to purposefully deflect the air flow along the air funnel guide to the suction port. Preferably, the cooling fins for structural reasons can be located near the bottom plate and essentially parallel to the corrugations.

Brief Description of the Drawings

The invention is described in detail below on the basis of the figures, which depict one embodiment.

Figure 1: a perspective view of a preferred embodiment of a vacuum cleaner made according to the invention, with the dust cover open.

Figure 2: sectional view of figure 1.

The implementation of the invention

The same or essentially the same elements have the same designations in the figures.

Figure 1 presents a perspective view of a vacuum cleaner 10 with a dust collector 11, designed to install a container for collecting dust (not shown in the figure), as well as with a receiving chamber 12 for the device 13 for air injection. As the air injection device 13, a blower, a fan, a turbine and the like can be used. Figure 2 presents a section of figure 1. The dust collector 11 and the receiving chamber 12 are separated by a partition 14. In the partition 14 there is an outlet 18 for the flow of air sent from the dust collector 11 to the air discharge device 13. The dust collector 11 has a dust collector cover that can open. However, in the figures, the vacuum cleaner 10 is shown without a dust cover.

Using the air injection device 13, made in the form of a blower device, air is sucked in through the suction port 15 from the dust collector 11. The sucked air enters from the nozzle through the air inlet (not shown in the figure) into the dust collector 11. Thus, in the dust collector 11 is formed reduced pressure, and the dust collector is purged with a cleaned stream of air, which is directed along the main direction 22 of the stream along the partition 14 through the outlet 18 to the air injection device 13, is located to the receiving chamber 12. On the partition 14, as an outlet for connecting the dust collector 11 to the air injection device 13, a guide funnel 18 for air is provided in the receiving chamber 12, which tapers towards the air injection device 13, the inlet surface of this funnel occupies a significant part of the surface of the partition 14. The outer contour of the inlet surface of the guide funnel 18 for air is indicated by line 23. Preferably, the inlet surface of the guide raven air ki 18 occupies at least 50%, preferably from 70 to 80% of the total area of the partition 14. Due to such a large inlet surface, the pressure drop of the air flow is prevented as much as possible when it is sucked into the air discharge device 13 in the receiving chamber 12. At the same time, the guide funnel 18 for air, due to its shape, tapering in the direction of the air injection device 13, provides a uniform transition of the air flow from the dust collector 11 to the suction devices of the device 13 air connected to the suction port 15 of the guide funnel 18 for air. By expanding the air guide funnel 18 toward the dust collector 11, the air resistance to the intake air flow will be less than with the simple round suction port in the partition 14. As a result, the air guide funnel 18 prevents air swirls back to the maximum extent possible dust collector 11.

The base of the funnel is not located in the center of the partition 14, but is slightly shifted to the side region of the partition 14. At the base of the guide funnel 18 for air there is a protective element 24 formed by a domed ribbed element. The protective element 24 contains holes for the most unhindered passage of the air flow from the dust collector 11 to the air injection device 13. Thus, the protective element 24 can be blown with air over the entire area. The protective element 24 is designed to prevent injury to the rotating blades of the device 13 air discharge.

For purposefully deflecting the air flow along the partition 14 in the direction of the suction port 15, at least one corrugation 16 is provided, and at least one corrugation 16 is directed along the main flow direction 22 on the partition 14. An essentially five structure is provided corrugations 16 parallel to each other, which are located in the upper part of the partition 14, remote from the bottom plate 17 of the dust collector 11. The corrugations 16 are located with lateral displacement on the side of the partition 14, which is opposite to the suction Verstov 15. The corrugations 16 substantially parallel to the bottom plate 17. The corrugations 16 have substantially the same length and are arranged offset relative to each other, in accordance with the concavity of the guide funnel 18 for air. The depth of the corrugations 16 is from about 2 mm (minimum) to 5 mm (maximum). The corrugations 16 are located at a distance of at least about 1 cm from each other. The corrugations 16 are located in the outlet, made in the form of a guide funnel 18 for air, and end immediately in front of the suction hole 15 of the device 13 for air injection.

For cooling at least one semiconductor circuit component in the region of the through hole 25 of the partition 14, a cooling triac device 20 is provided that effectively interacts with the cooling fins 21 on the partition 14. The cooling fins 21 are located near the bottom plate and are substantially parallel to the corrugations 16.

Claims (8)

1. A vacuum cleaner that contains at least one dust collector (11), designed to accommodate a container for collecting dust, and at least one receiving chamber (12) for an air injection device (13) with a suction port (15) moreover, the dust collector (11) and the receiving chamber (12) are separated from each other by a partition (14), and in the partition (14) there is an outlet (18) for passing air from the dust collector (11) to the air injection device (13), characterized so that for targeted deviation of the air flow along the partition (14) in the direction of the suction opening (15), at least one corrugation (16) is provided, and at least one corrugation (16) is directed along the main direction (22) of the flow at the partition (14). 2. A vacuum cleaner according to claim 1, characterized in that a construction is made of several corrugations (16) parallel to each other, which are located in the upper part of the partition (14), remote from the bottom plate (17). 3. A vacuum cleaner according to claim 1 or 2, characterized in that the corrugations (16) are essentially parallel to the bottom plate (17). 4. A vacuum cleaner according to claim 1 or 2, characterized in that the corrugations (16) are essentially the same length and are offset with respect to each other. 5. A vacuum cleaner according to claim 1 or 2, characterized in that the depth of the corrugations (16) is from at least 2 mm to a maximum of 5 mm, and that the corrugations (16) are located at a distance of at least about 1 cm from each other. 6. A vacuum cleaner according to claim 1 or 2, characterized in that a guide funnel (18) is provided on the partition (14) as an outlet for connecting the dust collector (11) with the air injection device (13) in the receiving chamber (12). ) for air, tapering in the direction of the air injection device (13), the inlet surface of this funnel occupying a significant part of the surface of the partition (14), the corrugations (16) at least in some places located in the guide funnel (18) for air and end just before sun suction hole (15). 7. A vacuum cleaner according to claim 1 or 2, characterized in that for cooling at least one electronic component (19), a cooling device (20) is provided that interacts with cooling fins (21) on the partition (14). 8. A vacuum cleaner according to claim 7, characterized in that the cooling fins (21) are located near the bottom plate and essentially parallel to the corrugations (16).

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