JPH0228865Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is installed on the floor or wall of each room and connects the dust collection and suction member to the vacuum cleaner body at one location. This invention relates to a central vacuum cleaner configured by guiding piping.

[Conventional technology]

Conventionally, in this type of central vacuum cleaner,
When cleaning a certain room, open the lid of the suction panel (inlet) installed in that room, which is normally kept in a sealed state, and attach it to the hose insertion port, and attach it to the hose end of the dust collection and suction member. After inserting the connecting tool and connecting the insertion plug provided on the connecting tool and the receiving plug of the suction panel whose wiring is led to the motor of the exhaust fan installed inside the vacuum cleaner body, By turning on the remote control switch of the suction member, the exhaust fan was driven to collect and suction dust.

If dust clogs occur in the middle of the piping, or if the dust collection bag of the main body becomes full, the suction power will decrease significantly, but in the former case, use another regular vacuum cleaner to insert the hose. Dust clogging is resolved by suctioning from the mouth, and the latter is dealt with by removing the dust collection bag and discarding the dust.

[Problem that the invention attempts to solve]

In such conventional central vacuum cleaners, the operator noticed a decrease in suction power due to worsening of the suction of the dust collection suction tool at the tip of the dust collection suction member.
There was a problem in that if the problem was noticed too late, the dust clogging would further increase, causing the exhaust fan motor to overheat.

Further, if the suction force is within the normal range, there is a concern that the suction force may decrease, and even if one attempts to check this, there is no mechanical means to check this, so the user has no choice but to rely on the experience of the operator.

In some cases, the user may not know that cleaning is in progress in a certain room, causing trouble by opening the hose outlet cover in another room.

This invention was created in view of the above circumstances, and it not only warns and prevents problems caused by intervention from other rooms during dust collection work in one room, but also warns and prevents problems when the suction power falls below a predetermined level. To provide a central vacuum cleaner that avoids overheating of an exhaust fan motor by notifying the user of dust clogging and making it possible to deal with dust clogging and a full dust collection bag at an appropriate time.

[Means for solving problems]

In the central vacuum cleaner according to the present invention, the suction force sensing means of the main body of the vacuum cleaner is constituted by a pressure sensor consisting of an operating member and a microsensor that operate in response to exhaust pressure, and a blinking drive circuit associated with the sensor. Also, the suction panel installed in each room is equipped with a light-emitting element that continuously lights up to indicate the operation of the exhaust fan as a notification means, and a display member that displays dust clogging, etc. by continuous operation. That is.

[Effect]

Therefore, in the central vacuum cleaner of the present invention, when the exhaust fan is driven, a light emitter lights up on each suction panel in each chamber to notify that one of the chambers is being cleaned. etc. occurs and the suction force, that is, the exhaust pressure falls below a predetermined level,
The display member intermittently displays the situation in response to a blinking signal received from the pressure sensor via the blinking drive circuit.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings. In addition, in the central vacuum cleaner of this embodiment, the suction force sensing means of the vacuum cleaner body is composed of a pressure sensor and a blinking drive circuit, and the means for notifying the usage status is a light emitting body that continuously lights up and an intermittently operated display. The present invention is characterized in that it is configured with a display member that displays.

First, I will explain the configuration.

As shown in the schematic configuration diagram in FIG. A plurality of suction panels 2 arranged in a surface-embedded type), a dust suction pipe 3 that communicates both the above-mentioned two 1 and 2, and wiring 4 attached along the pipe 3.
and a dust collecting and suction member 5 which is detachably connected to the suction panel 2.

The vacuum cleaner body 1 includes a dust collection bag 11 connected to the end of the pipe 3, and an exhaust fan 13 with a motor installed in the dust collection bag 11 via a filter 12.
Further, a pressure sensor 17 consisting of a micro switch 14, an operating member 15, and a spring 16 is attached to the inner surface of the back wall 1B near the exhaust port 1e formed in the back wall 1B of the main body 1.

The actuating member 15 turns the switch 14 ON/OFF.
The pushing rod 15d that operates OFF and the exhaust port 1
It is integrally formed with a wind baffle plate 15p facing the air outlet 1e, and is rotatably supported on the inner end of the exhaust port 1e. There is.

The suction panel 2 has the exhaust fan 13 at one end.
A light emitting diode 21 as a first light emitter lights up to indicate that the exhaust port 1e is in operation, and a light emitting diode 22 serves as a second light emitter to blink to indicate that the exhaust pressure at the exhaust port 1e has fallen below a predetermined level. In addition, a hose insertion port 24 is formed in the center with a lid 23 that is always urged to be in a sealed state. In addition, the insertion port 24
A pair of terminal contacts 25 are provided between the light emitting diodes 21 and 22 (see FIG. 2).

The dust collection suction member 5 includes a dust collection suction tool 51 from the tip,
Telescopic extension tube 5 with remote control switch 52
3. A round contact 5 that fits into the hose 54 and the hose insertion port 24 and comes into contact with the pair of terminal contacts 25
6 (see FIG. 2) are connected.

In FIG. 2, which is a circuit configuration diagram showing the electrical relationship of the above-mentioned parts, 41 is a switch circuit, and terminal contacts 25 ₁ to n are arranged in parallel to the drive wiring 4A.
When the remote control switch 52 is turned ON, power is supplied from the power supply (not shown) to the motor 13M of the motorized exhaust fan 13 via the round contact 56 connected to one of the
It provides AC input.

42 is a lighting drive circuit, which is connected to the switch circuit 4;
By converting the AC input branched from 1 and turning on the remote control switch 52 as described above,
The main relay 42r is operated to continuously light all the light emitting diodes _{21 1 to} n of each room R arranged in parallel to the lighting wiring 4B via the lighting relay 42r2, and at the same time, the main relay 42r The driving relay _42r1 is turned on to operate the magnetic switch 41m of the switch circuit 41 to operate the motor 13M.

Reference numeral 43 denotes a blinking drive circuit, which branches off power from the lighting wiring 4B and inputs it when the lighting relay _42r2 is turned on. All of the light emitting diodes 22 ₁ to n of each room R arranged in parallel to 4C are turned on and off. Note that these circuits 41 to 4
3 is installed inside the vacuum cleaner main body 1 (not shown in FIG. 1).

Moreover, it goes without saying that the light emitting diodes 21 ₁ -n, 22 ₁ -n and the terminal contacts 25 ₁ -n are arranged on the suction panels 2 ₁ -n, respectively.

Next, the operation will be described.

In one of the chambers R, the connector 55 of the dust collecting and suction member 5 is fitted into the hose insertion port 24 of the suction panel 2n, and after the terminal contact 25n and the round contact 56 are brought into close contact, the remote control switch 52 is turned on. When this happens, a current flows through the drive wiring 4A, and the main relay 42r of the lighting drive circuit 42 operates, causing the lighting relay 4 to operate.
_2r2 and the driving relay _42r1 are turned on at the same time, so the magnetic switch 41m of the switch circuit ₄₁ is also turned on by the driving relay 42r1.
The motor 13M is activated, the motorized fan 13 starts suction operation, and the dust sucked in by the dust collection and suction member is accumulated in the dust collection bag 11 via the pipe 3. At this time, it goes without saying that in the other suction panels 2, the lid 23 biases and closes the hose insertion port 24.

On the other hand, by turning on the lighting relay _42r2 , all of the light emitting diodes ₂₁₁ to 21n are lit continuously via the lighting wiring 4B, indicating that the dust collection and suction member 5 is being used in any of the rooms. indicate.

The intake air that has passed through the filter 12 from the dust collection bag 11 due to the operation of the motorized exhaust fan 13 is discharged from the exhaust port 1e with high wind pressure. Spring 16 locked between back wall 1B and push rod 15d
The actuating member 15 moves away from the micro switch 14 and rotates parallel to the direction of exhaust gas discharge against the tensile force of the light emitting diode 22 ₁ for blinking.
~n continues to be off, indicating that dust is being sucked in smoothly.

In this state, the dust collecting and suction member 5 or the piping 3 may become clogged with dust, or the dust collecting bag 11 may become clogged with dust.
When the exhaust port 1e becomes full and the exhaust pressure at the exhaust port 1e, that is, the suction force against dust decreases, the pushing rod 15
d is pulled by the spring 16, and the micro switch 14 is turned on at a predetermined exhaust pressure level. Therefore,
When the electrical signal from this pressure sensor 17 is sent to the blinking drive circuit 43, the circuit 43 intermittently sends power to the blinking wiring 4C to blink all the light emitting diodes 22 ₁ to n of the second light emitter. Turn on the lights,
Notifies abnormalities related to the dust suction path.

In addition, as a display member that displays information by intermittent operation of the notification means, a ceramic buzzer is disposed as a sounding body in parallel with the light emitting diodes 22 ₁ to 22 n as second light emitters, and a display member that gives notification by intermittent sound is also used. You may.

[Effect of idea]

As explained above, according to the present invention, a pressure sensor that emits a signal by an actuating member having a wind blowing plate facing the exhaust port of the vacuum cleaner body is provided as a means for detecting a decrease in suction force, and as a means for notifying the vacuum cleaner It is composed of a light emitter that lights up to indicate when the machine is in operation, and a display unit that intermittently displays abnormalities in the dust suction path in response to a signal from the pressure sensor, so when cleaning,
Since it is possible to confirm that the suction power is normal and also to know that cleaning is being performed in any room, the person who is cleaning first will not be disturbed. In addition, since it is possible to quickly detect when the suction power has fallen below a predetermined level, it is possible to take appropriate measures to prevent dust clogging, thereby preventing the motor from overheating or from being used with reduced suction power. Many other effects can be obtained.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a central vacuum cleaner according to an embodiment of the present invention, and FIG. 2 is a diagram of the same electric circuit. 1... Vacuum cleaner body, 1e... Exhaust port, 2... Suction panel, 3... Piping, 5... Dust collection and suction member, 1
3...Exhaust fan with motor, 14...Micro switch, 15...Operating member, 15d...Pushing rod, 15p...Blow plate, 16...Spring, 17...
Pressure sensor, 21... Light emitting diode, 22...
Light emitting diode, 43... Flashing drive circuit, 55...
...Connector.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In addition to arranging piping for suctioning dust from suction panels installed at multiple locations into the vacuum cleaner body at one location, into which the connector of the dust collection and suction member is fitted. , a central vacuum cleaner comprising a suction force sensing means in the main body and a notification means for displaying the operating state of the central vacuum cleaner on the suction panel, wherein the sensing means is connected to a micro switch and an exhaust port of the vacuum cleaner main body. A pressure sensor consisting of a rotatably supported actuating member and the spring, and a signal from the pressure sensor blinking. The notification means is configured by combining a blinking drive circuit that converts it into a signal, and the notification means is a light emitting body that lights up to indicate that the motorized exhaust fan in the main body is in operation, and an exhaust pressure at the exhaust port that is below a predetermined level. and a display member that intermittently operates to display that the central vacuum cleaner is installed on the suction panel. (2) The central vacuum cleaner according to claim 1, wherein the display member is a light emitting body. (3) The central vacuum cleaner according to claim 1, wherein the display member includes a light emitting body and a sounding body arranged in parallel.