JPS5828587Y2 - Kihou Hatsuseisouchi - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a highly safe and power-saving bubble generator.

With conventional bubble generators, if you stop using them while taking a bath, for example, the compressor will continue to operate unless you turn off the power, so you cannot deal with the increase in pressure unless you install a safety valve. In addition, power was wasted.

For this reason, in the past, if you wanted to stop using a bubble generator, you had to turn off the power to the compressor, but it was not possible to operate electrical equipment with wet hands because it risked electric shock.

Therefore, as long as a conventional reciprocating type or rotary type compressor is used as a compressed air supply source for a bubble generator, the above-mentioned danger always accompanies the drawback.

In view of the drawbacks of conventional bubble generators, the present invention is designed to prevent the occurrence of the above-mentioned dangers when air supply is stopped during use of the bubble generator, and to provide a safe and especially The purpose is to suppress wasteful power consumption without switching the power supply.
Examples will be described based on the drawings.

Fig. 1 is an explanatory diagram showing the outline of the present invention, Fig. 2 is a perspective view of the bubble generator, and Fig. 3 is a schematic vertical sectional view of an electromagnetic reciprocating compressor as a compressed air supply source. An electromagnetic reciprocating compressor is used as the compressor 1, and the compressor 1 and the bubble generator 7 are connected by an air supply pipe (hereinafter referred to as pipe) 3 such as a pipe or hose, and the connection part between the bubble generator 7 and the pipe 3 is A flow rate control cock 5 is provided.

Next, the electromagnetic reciprocating compressor 1 will be explained.

For convenience of explanation, in FIG. 3, the head side of the cylinder 12 to which the pipe 3 is connected is referred to as the front or front, and the side where the fixed electromagnet 21 is provided is referred to as the rear or back.

A compression working chamber 13 defined by the piston 10 is provided on the head side of the cylinder 12 that supports the piston 10, and each of the working chambers 13 has an intake valve 14 that opens only in one direction.
The pipe 3 is attached to an exhaust hole having the exhaust valve 15, and the piston 10, cylinder 12, intake and exhaust valves 14, 15, etc. constitute the front part of the electromagnetic reciprocating compressor 1. ing.

A casing 17 is installed at the rear of the electromagnetic reciprocating compressor 1.
There is an electromagnet 21 fixed by the fixed electromagnet 21
Magnetic poles 23 and 23 having curved surfaces that are point symmetrical about an extension of the axis of the piston 10 are formed facing each other.

22 is an excitation coil wound around the iron core of the electromagnet 21.

The piston 10 integrally supports a magnetic armature 11 at its rear end, and when the fixed electromagnet 21 is energized, the magnetic armature 11 is electromagnetically attracted and enters between the magnetic poles 23 and 23, and the AC half wave is controlled and the electromagnet 21 is activated. When demagnetized, the piston 10 is moved back by the action of the piston return coil spring 18 provided between the rear end of the piston 10 and the inner wall surface of the rear end of the casing 17, and at this time, the pressure inside the cylinder 12 is increased to the rated value. It is possible to increase it.

Next, the operation of the above embodiment will be explained.

When the bubble generator 7 is submerged in bath water, the flow rate control cock 5 is opened, and the electromagnetic reciprocating compressor 1 is started, when a half wave of alternating current flows through the excitation coil 22, the fixed electromagnet 21
is excited, the magnetic armature 11 is electromagnetically attracted between the magnetic poles of the electromagnet 21, and the magnetic armature 11 is attracted to the coil spring 1.
At this time, the piston 10 integrated with the magnetic armature 11 moves backward at the same time, so the compression chamber 13 in the cylinder head becomes low pressure, the intake valve 14 opens, and the inside of the cylinder 12 outside air flows into.

When the current is cut off, the electromagnetic attractive force acting on the magnetic armature 11 disappears, so the coil returns to its original position due to the elastic force inherent in the spring 18, causing the combined body of the magnetic armature 11 and piston 10 to move forward. , the air that first entered the cylinder 12 is compressed within the compression working chamber 13.

When the pressure reaches the rated value, the exhaust valve 15 is opened and the compressed air is pushed out toward the pipe 3, and bubbles are ejected into the bath water from the blowhole formed in the bubble generator 7.

Table 1 above shows that compressor 1 has a rated discharge pressure of 0.1 kg.
These are experimental values showing the correlation between the discharge pressure kg/cm2, discharge flow rate l/min, current A, and input power W of the device of the present invention using an electromagnetic reciprocating compressor of /cm2, and the flow rate control cock 5 is in the fully open state. Looking at an example in this table, when the discharge rate is 501/min, the input power is 53
It's W.

Next, the operation when the flow rate control lock 5 is in a half-open state or completely closed will be explained with reference to Table 1.

When the flow rate control cock 5 is tightened, the amount of air sent from the compressor 1 to the bubble generator 7 decreases, and when it is completely tightened, the discharge rate of the compressor 1 is 01/m.
in (see Table 1).

Now, as the flow rate control cock 5 is throttled down as described above, the pressure in the compression chamber 13 of the electromagnetic reciprocating compressor 1 gradually increases, so the piston 1o, which is a free piston, opens the cock 5 completely. The piston is pushed backwards by a force stronger than when it is in the cylinder head, and the piston begins to move backwards, that is, in a direction that gradually moves away from the cylinder head. will gradually decline.

Therefore, even if the fixed electromagnet 21 is demagnetized and the magnetic armature 11 attempts to move forward due to the restoring force of the coil spring 18, the air pressure within the compression chamber 13 acts as a force that prevents the piston 10 from moving forward, making it difficult to jump out from between the magnetic poles. ,
Since the piston 10, which moves together with the magnetic armature 11, cannot push out the high pressure air in the compression working chamber 13, the operational top dead center of the piston 10 (the point where the piston is closest to the cylinder head) is located at the flow control cock. Compared to when 5 is fully opened, it is backwards.

By the way, in the case of the example shown in Table 1, the discharge amount is Q l /m
In other words, when the flow rate control cock 5 is completely throttled, the pressure inside the compression working chamber 13 is 0.4 kg/c.
m2 and will not grow any larger.

As mentioned above, by reducing the discharge amount, the discharge pressure gradually increases, and when the operational top dead center of the piston 10 moves away from the cylinder head, the restoring force of the return coil spring 18 is The forward movement of the piston is gradually blocked, and eventually the magnetic armature 11 becomes difficult to come out from between the magnetic poles 23 and 23 of the fixed electromagnet 21, and the magnetic armature 11 begins to reciprocate within the magnetic poles.

As a result, the magnetic resistance of the magnetic circuit made up of the fixed electromagnet 21 and the magnetic armature decreases, and the current flowing through the exciting coil 22 decreases.

Therefore, according to the example shown in Table 1, when the flow rate control cock 5 is completely throttled and the air supply to the bubble generator 7 is completely cut off, the input power is 20.5W, and the input power at the rated discharge pressure is 20.5W. It saves about 60% compared to 53W.

The present invention has been described above based on the embodiments, but the present invention is a bubble generator in which a compressed air supply source 1 and a bubble generator 7 are connected by an air pipe 3. , the compressor 10 provided in the compression working chamber 13 has a magnetic armature 1
1 and fixing the same armature 11 with electromagnet 2.
The magnetic armature 11 is slidably supported on the center line between the opposing magnetic poles 23 and 23 on a line that crosses the magnetic flux in a perpendicular direction, and the magnetic armature 11 is moved forward by the magnetic action of the electromagnet 21, and the spring 18 is caused to spring. An electromagnetic reciprocating compressor that generates compressed air by the compressor 10 moving in the compression working chamber 13 when reciprocating is used, and the compressed air supply source 1
A valve 5 is provided between the air bubble generator 7 and the air bubble generator 7 to adjust the flow rate of the compressed air. Even if the pressure inside 13 increases, the compressor 10
Since the moving position of the magnetic armature 11 is moved backward and the stroke length of the magnetic armature 11 is attenuated, the pressure in the compression working chamber does not rise above a predetermined value, and therefore there is no safety valve. It is also extremely safe and completely eliminates the dangers associated with increased pressure.

In addition, the present invention can be turned on and off by operating the flow control valve without relying on switching the power supply.
It is extremely safe to operate the valve with wet hands.

Moreover, as mentioned above, the movement of the magnetic armature changes as the pressure increases and decreases, and when the pressure increases, the reciprocating movement of the magnetic armature is almost constant at the magnetic poles 23 and 23 of the fixed electromagnet 21.
Since the magnetic resistance of the magnetic circuit is smaller than the value when the magnetic armature 11 reciprocates in and out of the magnetic pole, the bubble generator of the present invention can be used without turning off the compressor. The input current to the fixed electromagnet is reduced, and therefore the power consumption can be reduced, which is a power-saving effect. Combined with the above-mentioned safety, it is extremely practical as a consumer electric device.

In addition, in this invention, the compressor that is the source of compressed air is of the electromagnetic reciprocating type as described above, so when the flow control valve is closed during use and the pressure in the compression working chamber has risen to a predetermined pressure. Even if the power is turned off, in this state, the magnetic armature is stopped at a position close to the magnetic pole of the fixed electromagnet as described above, so there is residual pressure inside the compressor.Even if the power is turned on, the electromagnetic reciprocating compressor Compared to devices using other types of compressors, this type of compressor has the advantage that it is easier to suck in outside air, does not require a large driving force to restart the compressor, and is therefore easier to restart.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention. Fig. 1 is an explanatory diagram showing an overview of the invention, Fig. 2 is a perspective view of a bubble generator, and Fig. 3 is an electromagnetic reciprocating compressor as a compressed air supply source. FIG. 1... Electromagnetic reciprocating compressor, 3...
...Air pipe, 5...Flow rate control cock (valve)
, 7...Bubble generator, 10...Compressor (piston), 11...Magnetic armature, 1
2... Cylinder, 13... Compression working chamber, 14... Intake valve, 15... Exhaust valve, 18... Spring for double action. , 21...
・Fixed electromagnet, 22...excitation coil.

Claims (1)

[Scope of utility model registration request] A bubble generator in which a compressed air supply source and a bubble generator are connected by an air pipe, wherein the compressed air supply source has a compressor provided in a compression working chamber connected to a magnetic armature, and
The armature is slidably supported on the center line between opposing magnetic poles of a fixed electromagnet, on a line that crosses the magnetic flux at right angles, and the magnetic armature moves forward due to the magnetic action of the electromagnet and back due to the spring force. An electromagnetic reciprocating compressor is used that generates compressed air by the compressor that moves in the compression chamber when the compressor moves, and a valve is further provided between the compressed air supply source and the bubble generator to adjust the flow rate of the compressed air. Bubble generator.