阅读说明：本技术 旋风分离装置及电动吸尘器 (Cyclone separation device and electric dust collector ) 是由 朝日洋平 志贺彰 高野浩志郎 服卷茉莉花 相马公义 于 2017-05-11 设计创作，主要内容包括：旋风分离装置具备：回旋室(29),其使含尘空气在内部沿着侧壁回旋并从含尘空气分离尘埃；及集尘室,其与回旋室(29)的内部连通,并能够成为用于在内部收集在回旋室中分离得到的尘埃的收集状态和用于丢弃收集到的尘埃的丢弃状态。集尘室的内壁的表面在集尘室为收集状态的情况下处于第一状态,在集尘室成为丢弃状态时成为第二状态。集尘室的内壁的表面相对于尘埃的性质在上述第一状态和第二状态下不同。(The cyclone separation device is provided with: a swirling chamber (29) for swirling the dust-containing air inside along the side wall and separating dust from the dust-containing air; and a dust collection chamber which communicates with the inside of the swirling chamber (29) and can be brought into a collection state for collecting therein the dust separated in the swirling chamber and a disposal state for disposing of the collected dust. The surface of the inner wall of the dust collecting chamber is in a first state when the dust collecting chamber is in a collecting state, and is in a second state when the dust collecting chamber is in a discarding state. The surface of the inner wall of the dust collecting chamber is different in the first state and the second state with respect to the nature of the dust.)

1. A cyclone separation device, comprising:

a swirling chamber that swirls the dust-laden air internally along the side wall and separates dust from the dust-laden air; and

a dust collection chamber which communicates with the inside of the swirl chamber and which can be brought into a collection state for collecting therein dust separated in the swirl chamber and a discard state for discarding the collected dust,

the surface of the inner wall of the dust collecting chamber is in a first state when the dust collecting chamber is in the collecting state, and is in a second state when the dust collecting chamber is in the discarding state, and the properties of the surface of the inner wall of the dust collecting chamber relative to dust are different between the first state and the second state.

2. Cyclonic separating apparatus as claimed in claim 1,

the force with which the surface adsorbs dust in the first state is larger than the force with which the surface adsorbs dust in the second state.

3. Cyclonic separating apparatus as claimed in claim 2,

when the surface is changed from the first state to the second state, a frictional force acting between the surface and dust adhering to the surface is reduced.

4. Cyclonic separating apparatus as claimed in claim 2,

when the surface changes from the first state to the second state, an electrostatic force acting between the surface and dust attached to the surface is reduced.

5. Cyclonic separating apparatus as claimed in claim 2,

when the surface changes from the first state to the second state, the contact area between the surface and dust attached to the surface decreases.

6. Cyclonic separating apparatus as claimed in any one of claims 2 to 5,

the inner wall of the dust collecting chamber is formed of a material whose surface shape changes when an external force is applied.

7. Cyclonic separating apparatus as claimed in claim 6,

the material has a soft material and a fiber material embedded in the soft material.

8. Cyclonic separating apparatus as claimed in claim 6 or 7,

the material is light transmissive.

9. Cyclonic separating apparatus as claimed in any one of claims 1 to 8,

the cyclone separation device includes a deformation member that reversibly deforms the inner wall of the dust collection chamber.

10. Cyclonic separating apparatus as claimed in claim 9,

the deformation member opens the dust collecting chamber and discards dust collected in the dust collecting chamber to the outside.

11. An electric vacuum cleaner, comprising:

cyclonic separating apparatus according to any one of claims 1 to 10; and

and a blower that generates an air flow inside the swirling chamber provided in the cyclone separation device.

Technical Field

The invention relates to a cyclone separation device and an electric dust collector.

Background

Patent document 1 describes an electric vacuum cleaner provided with a cyclone separation device. The cyclone separator includes a cyclone chamber for separating air from dust by swirling the air containing the dust, and a dust collecting chamber for collecting the dust separated in the cyclone chamber.

Prior art documents

Patent document

Patent document 1: japanese laid-open patent publication No. 2015-150145

Disclosure of Invention

Problems to be solved by the invention

In the cyclone separation apparatus, not a little air flows into the inside of the dust collecting chamber together with dust. Thus, an air flow is generated inside the dust collecting chamber. Due to this airflow, the dust sometimes returns from the dust collecting chamber to the swirl chamber. In order to prevent the dust from returning to the swirl chamber, it is preferable to make it more difficult to separate the dust from the dust collection chamber.

On the other hand, when the dust collected in the dust collecting chamber is discarded to the outside, it is preferable that the dust is more easily separated from the dust collecting chamber. Thus, the characteristics required of the dust collecting chamber are different between when collecting dust and when discarding dust. In the conventional cyclone separation apparatus, both of the performance of collecting dust and the performance of discarding the collected dust cannot be achieved.

The present invention has been made to solve the above problems. The invention aims to provide a cyclone separation device which has both dust collection performance and dust discarding performance, and an electric dust collector with the cyclone separation device.

Means for solving the problems

The cyclone separation device of the present invention comprises: a swirling chamber that swirls the dust-laden air internally along the side wall and separates dust from the dust-laden air; and a dust collection chamber which communicates with the inside of the swirling chamber and can be brought into a collection state for collecting therein dust separated in the swirling chamber and a discard state for discarding the collected dust. The surface of the inner wall of the dust collecting chamber is in a first state when the dust collecting chamber is in a collecting state, and is in a second state when the dust collecting chamber is in a discarding state. The surface of the inner wall of the dust collecting chamber is different in the first state and the second state with respect to the nature of the dust.

The electric vacuum cleaner of the present invention includes the cyclone separation device and a blower generating an air flow inside a whirling chamber provided in the cyclone separation device.

Effects of the invention

According to the cyclone separation device and the electric dust collector with the cyclone separation device, the performance of collecting dust and the performance of discarding dust can be simultaneously achieved.

Drawings

Fig. 1 is a perspective view showing an electric vacuum cleaner according to embodiment 1.

Fig. 2 is a perspective view showing a state where the dust collection unit is detached from the electric vacuum cleaner of embodiment 1.

Fig. 3 is a rear view showing a state where the dust collection unit is detached from the electric vacuum cleaner of embodiment 1.

Fig. 4 is a view showing a section a-a of fig. 3.

Fig. 5 is a perspective view showing the dust collection unit of embodiment 1.

Fig. 6 is a front view showing the dust collection unit of embodiment 1.

Fig. 7 is an exploded view of the dust collection unit according to embodiment 1.

Fig. 8 is a view showing a B-B section of fig. 6.

Fig. 9 is a view showing a section C-C of fig. 8.

Fig. 10 is a view showing a D-D section of fig. 8.

Fig. 11 is a cross-sectional view of the electric vacuum cleaner of embodiment 1 taken along the same plane as the plane a-a in fig. 3.

Fig. 12 is a schematic view showing a composite material forming the dust collecting unit of embodiment 1.

Fig. 13 is a schematic view showing an example of the structure of the fiber material according to embodiment 1.

Fig. 14 is a diagram illustrating a method of accumulating dust in embodiment 1.

Fig. 15 is a diagram showing the relationship between the surface of the inner wall of the dust collecting chamber and dust in the collected state in embodiment 1.

Fig. 16 is a view showing the relationship between the surface of the inner wall of the dust collecting chamber and dust when the dust collecting chamber of embodiment 1 is in a discarded state.

Fig. 17 is a diagram showing a modification of embodiment 1.

Fig. 18 is a sectional view showing a dust collection unit of embodiment 2.

Fig. 19 is a sectional view showing a dust collection unit of embodiment 2.

Detailed Description

Hereinafter, embodiments will be described with reference to the drawings. The same reference numerals in the drawings denote the same or equivalent parts. In the present disclosure, redundant description is appropriately simplified or omitted. In addition, the present disclosure may include all combinations of combinable structures among the structures described in the embodiments below.