JPH0591961A - Fluid pressure type filter device - Google Patents

Abstract

PURPOSE:To eliminate such a fault that performance drops or dust collecting capacity is restrained because of clogging, by a method wherein an almost horizontal slit is provided at the center of a bulkhead between front and rear chambers inside a filter device, a suction port is provided on the top of the front chamber and a hole device which communicates with an exhaust device is provided on the top of the rear chamber at a distance from a rear wall. CONSTITUTION:A casing 1 of a fluid pressure the type filter is divided into a front chamber and a rear chamber by a bulkhead 2 and a nearly horizontal slit 3 is provided at the center of the bulkhead 2. A suction pipe opening 4 is provided on top of the front chamber of the casing 1 and a hole device 5 is provided on top of the rear chamber. The hole device 5 is connected to an airflow path 9 leading to an opening 8 of an exhaust pipe 7 and is located above the slit 3. An adequate gap is provided between the rearmost part of the hole device 5 and a rear wall 10 of the casing so that sucked air is prevented from striking against the rear wall and the lower part of the rear chamber below the slit 3 is used as a dust collection chamber 11. Thereby, even when a precise filter is installed in the airflow path 9, clogging is extremely diminished, so that it is unnecessary to enhance the capacity of motor.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) A filter device for vacuum cleaners.

(Prior Art) There is a slit between the front chamber and the rear chamber, air and dust are separated by the pressure of the fluid, and the inertia of the object is used above the rear side of the slit to separate air and dust again. There was no technical idea to try. There are many technical ideas utilizing the difference in inertia of an object, such as Japanese Utility Model Publication No. 52-167856, Japanese Unexamined Patent Publication No. 56-5627, and Japanese Utility Model Publication No. 52-11752. 62-1674
No. 84 was filed and a voluntary amendment was submitted in March 1988.

(Problems to be solved) In any industry, it is said that the separation rate of dusts is 90% at most due to fine dust and the device tends to be huge, which is not suitable for general-purpose vacuum cleaners for home use. As, it was not put to practical use.

(Means for Solving the Problem) Therefore, in the present invention, the effect is enhanced by utilizing the pressure of the fluid in addition to utilizing the inertia, and at the same time, the apparatus is made compact.

(Operation) In the front chamber, dust that has been sucked and entered the device falls, and the fine dust tries to move around. However, when the air passes through the slit and changes its direction and travels, it becomes a tongue-like air flow below the slit due to its own inertia, and then travels in the slit direction. Therefore, a vector in the traveling direction of the air flow and the pressure due to the air flow are applied to the dropped dusts. Then, the debris gently passes through the lower half of the slit while being pressed into the rear dust collection chamber. This is clearly seen in the experiment. When the lower part of the slit in the front chamber is deep, convection as shown in FIG. 2 occurs in the lower part, but the fine dust that has been convection gathers on the outer edge of the convection due to centrifugal force and eventually comes into contact with the upper airflow. .. The same applies to the case where dust is accumulated in the front chamber near the slit, and when a vector is given in contact with the air flow, it moves to the rear chamber while being pressed. In the rear chamber, air is sucked into the hole device, but an appropriate space is provided between the rear end of the hole and the rear wall of the case, and the air rebounds to the rear wall due to its own inertia and disturbs the air flow flux. I tried not to.

(Embodiment) FIG. 1 shows an example in which a motor 12 and an exhaust port 13 are provided below a front chamber. The space is used to make the device compact, and at the same time, the dust chamber is only the rear chamber to simplify the structure. Regarding the discharge of dust from the dust chamber, there are methods such as installing the upper part of the device at the bottom and opening the discharge port on the rear wall of the device, but it is also a separate common sense and Is omitted.

(Effects) The above effect was realized by the new technical idea of combining the use of the pressure of the steady flow and the inertia of the object and the improvement of the previous application by the applicant, and as a result, the following effects were produced. ..

1. Even if a conventional precision filter or the like is provided in the air passage 9, clogging due to dust is extremely reduced, so that it is not necessary to enlarge the motor unnecessarily, and energy saving, downsizing of the motor, and noise reduction can be realized.

2. Since the device can be made compact, it is possible to enhance convenience such as stable and efficient cleaning even with a small vacuum cleaner such as a rechargeable type.

3. The structure does not damage the filter and does not damage the motor even if it sucks glass or sharp metal pieces.

[Brief description of drawings]

FIG. 1 is a partially transparent perspective view of the embodiment, and FIG. 2 is a perspective view showing the flow of airflow by deepening the front chamber of FIG. 1 ... Device case 2 ... Partition 3 ... Slit 4 ... Suction pipe opening 5 ... Hole device 6 ... Ceiling 7 ... Exhaust pipe 8 ... Exhaust pipe opening 9 ... Air flow path 10 ... Case rear wall 11 …… Rear chamber dust collection chamber 12 …… Motor 13 …… Exhaust port 14 …… Air flow 15 …… Movement of dust 16 …… Convection

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[Procedure amendment]

[Submission date] August 6, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Fluid pressure type filter device

[Claims]

1. A fluid pressure for vacuum cleaners having the following conditions :
The force type filter device (a) The device case (1) is divided into an anterior chamber and a posterior chamber by a partition wall (2) having an appropriate thickness, and the partition wall is provided with a slit (3) of substantially horizontal and appropriate width at an appropriate position in the central portion. Have. (B) A suction pipe opening (4) is provided in the upper part of the device case front chamber. (C) A hole device (5) is provided in the upper portion of the rear chamber, and the hole device is
The exhaust pipe 7 is opened in the air flow path (8) substantially parallel to the ceiling (6).
Contact mouth (9). (D) The hole device is above the slit, and the rear wall (1
0) and an appropriate interval. (E) In the rear chamber, the dust collection chamber (11) is located below the slit.

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is a filter device for vacuum cleaners.

[0002]

2. Description of the Related Art A slit is provided between an anterior chamber and a posterior chamber, and the characteristics of the pressure of a fluid and the flux of a steady flow are used to separate air and dust.
There was no technical idea to separate . The technical idea of utilizing the difference in inertia of an object has hitherto been disclosed in Japanese Utility Model Laid-Open No. 52-16
7856, Japanese Patent Laid-Open No. 56-5627, and Japanese Utility Model Laid-Open No. 52-1.
There are many such as No. 1752, and Japanese Patent Application Sho6
No. 2-167484 was filed and a voluntary amendment was submitted in March 1988.

[0003]

[Problems to be solved] However, in any of the existing technical ideas, in the industry, the separation rate of dusts is at most 9 due to fine dust.
It is said that the equipment tends to become huge in addition to about 0%,
It was not put into practical use because it was unsuitable for general-purpose vacuum cleaners for home use.

[0004]

Therefore, in the present invention, the effect is enhanced and the apparatus is made compact by utilizing not only the use of inertia but also the property of the fluid pressure and the flux of the steady flow .

[0005]

In the front chamber, dust that has been sucked and entered the apparatus falls, and fine dust tends to move around. But air department及become tongue airflow to the slit downwards due to its own inertia
However, since it is sucked by the motor, a steady flow is formed and the flux
And make a change in direction without passing through the slit.
Mu. Dust that has fallen in contact with the steady lower layer of the air stream,
The vector in the lit direction and the pressure due to the flux of the air flow
If necessary, the lower half of the slit is gently pressed and passes through the rear dust collection chamber (11) . This is clearly seen in the experiment. If the slit below the antechamber is deep,

As shown in FIG. 2, convection (16) occurs in the lower part, but the fine dust that has been convection gathers on the outer edge of the convection due to centrifugal force, and eventually reaches a position in contact with the flux of the upper airflow.
Garbage include, but front chamber is the same when accumulated to the vicinity of the slit, given a vector by us in a position to violate the airflow moves to the pressed while the rear chamber. In the rear chamber, air is sucked into the hole device , but dust is pressed from above.
While being stored, it is housed in the dust chamber. These actions are color
If two different rivers meet, you will encounter obstacles such as rocks.
Flux law of steady flow that does not mix unless
It is also proved by Bernoulli's theorem.

FIG. 1 shows a hole device similar to that of the earlier application by the applicant .
Between the rear edge of the hole and the rear wall of the case, it is not seen in the earlier drawing.
It was necessary to provide an appropriate space so that the air has its own inertia.
It does not bounce up to the rear wall and disturb the air flow flux
It has been improved and used.

[0006]

【Example】

FIG. 1 shows a motor (12) and an exhaust port (1 ) below the front chamber .
In the example in which 3) is provided, the device is made compact by utilizing the space, and at the same time, the dust collecting chamber is provided only in the rear chamber to simplify the structure. Regarding the discharge of dust from the dust chamber, there are methods such as installing the upper part of the device at the bottom or opening the discharge port on the rear wall of the device. Omit it. Garbage
As for the sensing device etc. when the temperature reaches above the slit
It is the same.

[0007]

[Effect] The above-mentioned actions are realized by the new technical idea of utilizing the pressure and flux properties of the steady flow and the inertia of the object in combination, and the improvement of the previous application by the applicant. Produced a great effect.

1. The clogging due to dust is extremely reduced
Then, install a conventional precision filter etc. in the part of the hole device (5).
Even if it is provided, it is not necessary to enlarge the motor unnecessarily,
It is possible to save energy, downsize the motor, and reduce noise. 2. Since the device can be made compact , it is possible to stably and efficiently remove dust even with a small vacuum cleaner such as a rechargeable device or an air conditioner, which improves convenience. 3. The structure does not damage the filter and does not damage the motor even if it sucks glass or sharp metal pieces.

[0009]

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of the embodiment.

[ Fig. 2 ]

[ Fig. 1 ] is a perspective view showing the flow of airflow by deepening the anterior chamber of
is there.

[ Explanation of Reference Signs ] (1) Device case (2) Partition wall (3) Slit (4) Suction pipe opening (5) Hole device (6) Ceiling (7) Exhaust pipe (8) The air passage (9) is the exhaust pipe opening (10) The case rear wall (11) is the rear chamber dust collection chamber (12) The motor (13) The exhaust port (14) The air flow (15) is the dust Convection is a kind of movement (16)

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Fig. 2]

[Figure 1] ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 30, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Fluid pressure type filter device

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is a filter device for vacuum cleaners.

[0002]

2. Description of the Related Art There has been no technical idea in which a slit is provided between a front chamber and a rear chamber to separate air from dust by utilizing the pressure of a fluid, the nature of the flux of a steady flow and the inertia of an object. ..
The technical idea mainly utilizing the difference in the inertia of an object has hitherto been disclosed in Japanese Utility Model Laid-Open No. 52-167856 and Japanese Patent Laid-Open No. 56-5627.
No. 62-16752, and the applicant also filed Japanese Patent Application No. 62-167484 and submitted a voluntary amendment in March 1988.

[0003]

[Problems to be solved] However, in any of the existing technical ideas, in the industry, the separation rate of dusts is at most 9 due to fine dust.
It is said that the equipment tends to become huge in addition to about 0%,
It has not been put to practical use because it is not suitable for household vacuum cleaners.

[0004]

Therefore, in the present invention, the effect is enhanced and the apparatus is made compact by utilizing not only the use of inertia but also the property of the fluid pressure and the flux of the steady flow.

[0005]

In the front chamber of the device, dust that has been sucked and entered the chamber falls, and fine dust tends to move around. However, although the air reaches a tongue-like airflow to the lower side of the slit by its own inertia, it is attracted by the motor to form a steady flow and forms a flux to change its direction as a slit passage. The dust that has fallen in contact with the steady flow in the lower layer of the airflow, is given a pressure by the vector in the slit direction and the flux of the airflow, and gently passes through the lower half of the slit while being pressed, The state of entering the rear dust collection chamber in sequence is clearly seen in the experiment. If the slit below the antechamber is deep,

Although the convection as shown in FIG. 2 occurs in the lower part, the fine dust on the convection gathers on the outer edge of the convection due to the centrifugal force, and eventually reaches a position in contact with the flux of the upper airflow. The same applies to the case where the fine dust accumulates in the vicinity of the slit in the front chamber, but when it reaches a position in contact with the air flow and is given a vector, it moves to the rear chamber while being pressed. In the rear chamber, air is sucked into the hole device, but part of the fine dust that has merged with the air advances toward the rear wall due to the difference in inertia, falls out of the airflow, and falls into the dust chamber while being pressed from above. To be done. These effects are due to the nature of the flux of steady flow and Bernoulli's flow pressure theorem, as seen in the example of a phenomenon in which two rivers of different colors join each other unless they encounter obstacles such as rocks, unless they meet each other. Can be explained by

In FIG. 1, a hole device similar to that of the previous application by the applicant was used, but an appropriate space, which was not seen in the previous application, was provided between the hole device and the rear wall of the case and between each hole, and air was provided. Has been improved so that it does not disturb the flux of the air flow that bounces back to the rear wall due to its own inertia.

[0006]

【Example】

FIG. 1 shows an example in which a motor 12 and an exhaust port 13 are provided below a front chamber. By using a space, the vacuum cleaner body is made compact, and at the same time, the dust collecting chamber is provided only in the rear chamber to simplify the structure. Regarding the discharge of dust from the dust collection chamber, there are methods such as installing the upper part of the device at the bottom and opening the discharge port on the rear wall of the device, but it is also a technical common sense and the drawing is omitted. To do. The same applies to the sensing device and the air conditioners when dust reaches above the slit.

[0007]

[Effects] The above effect was realized by the new technical idea of using the pressure and flux properties of the steady flow and the inertia of the object in combination, and the applicant partially improved the earlier application. , Produced the following effects.

1. Depending on the application, even if a conventional precision filter is installed in the air flow path 9, clogging due to dust is extremely reduced, so there is no need to enlarge the motor unnecessarily, saving energy, downsizing the motor, and reducing noise. it can. 2. Since the device can be made compact, convenience can be improved, for example, even a small vacuum cleaner such as a rechargeable device or an air conditioner can efficiently remove dust. 3. The structure does not damage the filter and does not damage the motor even if it sucks glass or sharp metal pieces. 4. The device is simple and economical to make.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view in which a part of the embodiment is seen through, and FIG. 2 is a perspective view showing the flow of airflow by deepening the front chamber in FIG.

[Explanation of reference numerals] 1 device case 2 partition wall 3 slit 4 suction pipe opening 5 hole device 6 ceiling 7 exhaust pipe 8 exhaust pipe opening 9 empty flow passage 10 case rear wall 11 rear chamber dust chamber 12 motor 13 exhaust port 14 Flow of air 15 Movement of garbage 16 Convection

[Procedure amendment]

[Submission date] November 18, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Fluid pressure type filter device

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is a filter device for vacuum cleaners.

[0002]

2. Description of the Related Art There has been no technical idea in which a slit is provided between a front chamber and a rear chamber to separate air from dust by utilizing the pressure of a fluid, the nature of the flux of a steady flow and the inertia of an object. ..
The technical idea mainly utilizing the difference in the inertia of an object has hitherto been disclosed in Japanese Utility Model Laid-Open No. 52-167856 and Japanese Patent Laid-Open No. 56-5627.
No. 62-16752, and the applicant also filed Japanese Patent Application No. 62-167484 and submitted a voluntary amendment in March 1988.

[0003]

[Problems to be solved] However, in any of the existing technical ideas, in the industry, the separation rate of dusts is at most 9 due to fine dust.
It is said that the equipment tends to become huge in addition to about 0%,
It has not been put to practical use because it is not suitable for household vacuum cleaners.

[0004]

Therefore, in the present invention, the effect is enhanced and the apparatus is made compact by utilizing not only the use of inertia but also the property of the fluid pressure and the flux of the steady flow.

[0005]

In the front chamber of the device, dust that has been sucked and entered the chamber falls, and fine dust tends to move around. However, although the air reaches the tongue-like airflow below the slit due to its own inertia, it is sucked by the motor to form a steady flow, forming a flux and passing through the slit to change its direction. The dust that has fallen in contact with the steady flow in the lower layer of the airflow, is given a pressure by the vector in the slit direction and the flux of the airflow, and gently passes through the lower half of the slit while being pressed, Enter the rear dust collection room one by one. This is clearly seen in the experiment. If the slit below the antechamber is deep,

Although the convection as shown in FIG. 2 occurs in the lower part, the fine dust on the convection gathers on the outer edge of the convection due to the centrifugal force, and eventually reaches a position in contact with the flux of the upper airflow. The same applies to the case where the fine dust accumulates in the vicinity of the slit in the front chamber, but when it reaches a position in contact with the air flow and is given a vector, it moves to the rear chamber while being pressed. In the rear chamber, air is sucked into the hole device, but part of the fine dust that has merged with the air advances toward the rear wall due to the difference in inertia, falls out of the airflow, and falls into the dust chamber while being pressed from above. To be done. These effects are due to the nature of the flux of steady flow and Bernoulli's flow pressure theorem, as seen in the example of a phenomenon in which two rivers of different colors join each other unless they encounter obstacles such as rocks, unless they meet each other. Can be explained by

In FIG. 1, a hole device similar to that of the previous application by the applicant was used, but an appropriate space, which was not seen in the previous application, was provided between the hole device and the rear wall of the case and between each hole, and air was provided. Has been improved so that it does not disturb the flux of the air flow that bounces back to the rear wall due to its own inertia.

[0006]

【Example】

FIG. 1 shows an example in which a motor 12 and an exhaust port 13 are provided below a front chamber. The space is used to make the vacuum cleaner compact and at the same time to simplify the structure by leaving the dust chamber only in the rear chamber. Regarding the discharge of dust from the dust collection chamber, there are methods such as installing the upper part of the device at the bottom and opening the discharge port on the rear wall of the device, but it is also a technical common sense and the drawing is omitted. To do. The same applies to the sensing device and the air conditioners when dust reaches above the slit.

[0007]

[Effect] The above-mentioned effects are realized by the new technical idea of utilizing the pressure and flux properties of the steady flow and the inertia of the object in combination, and the applicant partially improved the earlier application. Produced an effect like.

1. Depending on the application, even if a conventional precision filter is installed in the air flow path 9, clogging due to dust is extremely reduced, so there is no need to enlarge the motor unnecessarily, which saves energy, reduces the size of the motor, and reduces noise. it can. 2. Since the device can be made compact, convenience can be improved, for example, even a small vacuum cleaner such as a rechargeable device or an air conditioner can efficiently remove dust. 3. The structure does not damage the filter and does not damage the motor even if it sucks glass or sharp metal pieces. 4. The device is simple and economical to make.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view in which a part of the embodiment is seen through, and FIG. 2 is a perspective view showing the flow of airflow by deepening the front chamber in FIG.

[Explanation of reference numerals] 1 device case 2 partition wall 3 slit 4 suction pipe opening 5 hole device 6 ceiling 7 exhaust pipe 8 exhaust pipe opening 9 empty flow passage 10 case rear wall 11 rear chamber dust chamber 12 motor 13 exhaust port 14 Flow of air 15 Movement of garbage 16 Convection

Claims (1)

[Claims] 1. The inside of the device case 1 is divided into a front chamber and a rear chamber by a partition wall 2 having an appropriate thickness, and the partition wall 2 has a slit 3 having a substantially horizontal and appropriate width at an appropriate position in the central portion. 2. A suction pipe opening 4 is provided in the upper part of the device case front chamber. 3. In the upper part of the rear chamber, there is provided a hole device 5 which is opened so as to be inclined downward and rearward, and the device is substantially parallel to a ceiling 6 and air which communicates with an exhaust pipe 7 opening 8 between the ceiling 6 and the ceiling. The channel 9 is used. 4. There is an appropriate gap between the rear end of the hole device and the case rear wall 10. 5. In the rear chamber, the dust collection chamber 11 is located below the slit. A fluid pressure filter device for vacuum cleaners having the above conditions.