JP4169306B2 - Electromagnetic pump for washing liquid injection pulsation generator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electromagnetic pump for a washing injection liquid pulsation generator including a washing agent used in a warm water washing toilet seat, a face washing health washing massage, and the like, and since it is a positive displacement pump, it suppresses pulsation of discharged liquid and smoothes it. On the other hand, the conventional electromagnetic plunger pump that has dealt with this is sprayed from a discharge port such as a nozzle by applying a wave-like, soft, shocking, ie pulse-like stimulating pulsation. It contributes to giving up the effect.
[0002]
[Prior art]
Conventionally, the washing toilet seat of the washing liquid injection is directly connected to the water supply and uses its water pressure or is supplied under pressure by a pump from a water tank. For example, Japanese Patent Laid-Open Nos. 9-53268 and 9- There is a technique disclosed in Japanese Patent No. 112417.
[0003]
In the latter of the prior arts, an accumulator is provided on the discharge side in order to increase the smoothing action and the accumulation action of the discharge pressure of the electromagnetic pump.
[0004]
In addition, as an example of an electromagnetic pump used in a washing toilet seat, Japanese Utility Model Publication No. 4-977982, Japanese Patent No. 2656663 and Japanese Patent No. 2917288 as examples used in an oil combustor provided in a hot water supply device, a boiler, etc. Although it is disclosed in the publication and there is no flaw in enumeration, any accumulator is attached to the discharge side of the pump as means for smoothing discharge pulsation, which is a drawback of the electromagnetic pump. And the discharge pressure is about 1kgf / cm when used for the toilet seat.²(0.098MPa).
[0005]
In the case of water supplied from the mainstream of the toilet seat, the discharge pressure is suppressed to about the same level as this, and if necessary, a pressure reducing valve is used. In particular, when pumping fresh water such as tap water from an underground water tank to a water supply tank installed on the roof of a middle-high-rise building and distributing it to downstairs equipment, the potential head is large. For example, the static pressure is reduced, and if the head is small and insufficient, it must be increased.
[0006]
When tap water is received directly from the water pipe, the tap water is kinetic (Kinetic) distributed by the pump, that is, it has dynamic pressure, but the pressure is smoothed so that there is almost no pulsation. Therefore, it may be regarded as a static pressure as described above.
[0007]
However, the conventional washing liquid or washing fresh water containing a washing agent used in, for example, a washing toilet seat is almost smooth in pulsation, and the same as that supplied by a pump.
[0008]
[Problems to be solved by the invention]
As described above, taking the warm water flush toilet seat as an example, the conventional one has both a direct water supply type and a pump type, each having advantages and disadvantages.
[0009]
In other words, the former
Advantages i. Uses tap water, so it is relatively quiet.
[0010]
B. Low power consumption.
[0011]
Disadvantages When water tanks are installed on the rooftops of medium- and high-rise apartments, the water pressure varies depending on the location, and the water flow rate varies.
[0012]
B) Since the water pressure is constant, there is no washing feeling and the washing effect is inferior.
[0013]
The latter is
Advantages b. The water pressure is easily regulated by a pump.
[0014]
B) Furthermore, the amount of hydraulic water can be adjusted, and the washing ability is better.
[0015]
Disadvantages b. Pump operating noise is relatively loud.
[0016]
B) Power consumption is also relatively high.
[0017]
Since all of the above conventional methods had a constant water pressure during washing, the washing effect was poor experimentally, requiring an average 1.1 liters of flush water after toilet, and in the case of warm water washing, the tank was filled with at least 1.2 liters. Must always be stored at a predetermined temperature, that is, 30 to 40 ° C., and this consumes a large amount of power in the electric heater for maintaining the temperature.
[0018]
Furthermore, the installation space for such a 1.2 liter hot water storage tank will be large, and the installation space for other accessories will be even larger, contrary to the demand for miniaturization and space saving demanded in the market.
[0019]
It should be noted that if more washing water is used, all of the hot water is discharged and cold water enters, and it is not heated, it is discharged as it is and touches the human body part, especially in the cold season. Not only is it uncomfortable, it can also cause a cold.
[0020]
Furthermore, it is necessary to improve the above-described drawback of requiring a relatively large amount of washing water and save water.
[0021]
In addition, in order to enhance the effect in the above-described cleaning, it is conceivable to inject water by applying ultrasonic waves or intermittent shock waves. However, ultrasonic cleaning increases the weight of the cost of the generating device, and is economical. There is a problem that is not accompanied.
[0022]
In order to give intermittent shock waves, there is a method using a rotary slide type cut valve. However, if it is driven by an ordinary motor, it is too fast to be practically used, and the equipment becomes excessive. In addition, repeated on / off operations using a pulse motor or a solenoid valve still have problems in terms of equipment and cost. And since the water flow is completely stopped during the on-off period, it may be uncomfortable for a person who is intermittently watered locally with a water gun.
[0023]
In addition, as described above, in response to the market needs of sanitary hot water washing toilet seat devices, it is necessary to make all the accessory equipment compact in order to reduce the size and weight, in the case of the present invention, the washing effect When using an electromagnetic plunger pump to increase the water pressure and save the water, such as tap water, and apply a pulse-like shocking pulsation to the washing water and eject it. Miniaturization and weight reduction are inevitable, and the discharge capacity must be more efficient. It is also necessary to suppress the generation of noise due to pump vibration.
[0024]
Furthermore, for the warm water toilet seat, the warm water is stored in a warm water tank, and when used, the warm water is pumped into the nozzle by a pump and ejected from the ejection hole toward the local part of the human body. The remaining hot water gradually cooled, and when it was reused, the cold water was first ejected, so that there was a problem of feeling cold and uncomfortable.
[0025]
Furthermore, the above-mentioned residual water may freeze in the winter in severe cold regions and cause damage to the equipment.
[0026]
As a solution to the above-mentioned residual water discharge, a pump utilizing a shape memory alloy coil spring disclosed in Japanese Utility Model Laid-Open No. 59-156976 and a vacuum breaker disclosed in Japanese Utility Model Laid-Open No. 4-99782 are integrated with a pump. Although there is a conventional technique incorporated, problems as described later remain.
[0027]
An object of the present invention is to solve various problems on the heel.
[0028]
[Means for Solving the Problems]
In order to solve the above-described problems, an electromagnetic pump according to the present invention is an electromagnetic pump having a check valve that is slidable and reciprocable by a magnetic force acting alternately in a tube cylinder surrounded by an electromagnetic coil and a repulsive force of a spring. An inline type pump having a plunger, which is subjected to a static pressure regulated to a predetermined value of liquid entering from the inflow side thereof, and the electromagnetic coil receives an intermittent pulse current set according to the application. By energizing and actuating the electromagnetic plunger, the pulsating flow on the inflow side caused by the discharge pulsation of the pump is formed by applying pressure and applying a wave-like shocking pulsation to discharge the jet from the discharge side. An accumulator provided with a buffer plate with an operating diaphragm for suppressing the vibration of the inflow side pipe due to the above and giving up the inflow / discharge efficiency is integrally disposed on the inflow side of the main body.
[0029]
Furthermore, an orifice is provided downstream of the inflow check valve provided in the electromagnetic plunger, and an orifice is provided in place of the discharge valve, and the pressure on the inflow side and the pressure at the inflow stroke of the pump added thereto are Even if the back part of the check valve presses and closes the outflow hole inside the valve cylinder in which the check valve is fitted, a flow passage that bypasses this is perforated in the outer part of the valve cylinder It is characterized by being.
[0030]
Further, a magnetic head facing the tapered end of the electromagnetic plunger and facing the end is fitted and fixed at an end portion of the tube cylinder, and a magnetic gap is formed between the end surface of the electromagnetic plunger. Is formed.
[0031]
Then, the pump is closed at the downstream end of the discharge side of the electromagnetic pump when the pump discharges, and the liquid is injected from the discharge port. The liquid is opened when the operation is stopped, and the residual liquid is discharged from the water outlet to the outside of the pump. Thus, a water drain valve for preventing the outflow from the discharge port is provided.
[0032]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Before that, as an application example of the embodiment, the sanitary hot water toilet seat (in the drawing, in the frame of the two-dot chain line) The connection configuration will be described with reference to FIG. Water flowing in and pumping in from a water pipe or a fresh water well is stored in, for example, an underground water storage tank 4 of a middle-high-rise building through an on-off valve 3, and then on a roof via a pump 6, a pump on / off valve 7, and a pump 8 Enters a water supply tank 9 installed in the water supply line 10 and the like, and is distributed through a water supply pipe 10 from now on. At this time, the water head h on the top floor is small, and the water pressure is 0.5 kgf / cm, which is necessary in this case, for example.²When the pressure is lower than the above, the pressure is increased by the pressurizing pump 16, and when the head H is excessively higher than the above, the pressure is reduced by the pressure reducing valve 11, and the flow pressure of the piping and equipment is taken into consideration to be higher than the required water pressure. Set.
[0033]
In some cases, the water is directly received from the water pipe 17. Next, the hot water is heated to a hot water temperature of 30 to 40 ° C. by the instantaneous boiling hot water heater 13 from the electromagnetic valve 12, which is the following accessory of the washing toilet seat, and the hot water is an arrow in FIG. As shown in a, the washing water pressurized by entering the electromagnetic pump 1 (P) of the present invention and energized with an intermittent pulse current set in accordance with the use conditions described later is a wave-like impact. With the target pulsation, the nozzle enters the nozzle cylinder 14 as shown by the arrow b, and is jetted and discharged from the nozzle 15 to perform washing, massage, etc. of the human body part.
[0034]
Note that the above-described instantaneous water heater 13 does not require a hot water storage tank, and thus not only saves equipment space, but also saves energy by maintaining and maintaining the hot water storage. The hot water heater 13 includes a feed water temperature sensor for detecting the feed water temperature, a tapping temperature sensor for detecting the tapping temperature, a water amount sensor for detecting the amount of water, a means for setting a set temperature, and the like. It is necessary to have a function to control.
[0035]
It is not surprising that the washing toilet seat is operated by a user's operation.
[0036]
Next, an embodiment of the electromagnetic pump of the present invention will be described with reference to FIG. FIG. 1 is an enlarged longitudinal sectional view showing a partial cross section thereof.
[0037]
The main part of the main body 20 that fits in the upstream end of the tube column cylinder 39 that is fitted in and surrounded by the axial hole of the electromagnetic coil 34 mounted on the bobbin 33, and the downstream end thereof A valve that is squeezed between the holding spring 40 and the return spring 36 between the magnetic head 35 fitted in the part and slidably reciprocates, and presses and closes the valve body 42 against the valve seat 43. When an electromagnetic plunger 38 having a check valve 55 having a valve cylinder 41 containing a spring 44 energizes a pulsed intermittent current to the electromagnetic coil 34, the intermittent magnetic force generated therein and the repulsion of the return spring 36. It is configured to reciprocate by force.
[0038]
A discharge joint 23 including a discharge port 24 and a drain valve 51 is connected to the downstream end of the tube cylinder 39.
[0039]
The upstream end portion of the tube column cylinder 39 is fitted and connected to the main body 20 integral with the inflow joint 21 having the inflow port 22.
[0040]
The electromagnetic coil 34 is surrounded by a yoke 31 and forms a part of a magnetic circuit together with the magnetic head 35 and an annular magnetic path 37 that is fitted around the upstream end portion of the tube column cylinder 39.
[0041]
Further, the discharge joint 23, the yoke 31, the bobbin 33 of the electromagnetic coil 34, the annular magnetic path 37 and the main part of the main body 20 are all sandwiched and fixed by an outer frame iron 32.
[0042]
An accumulator 50 is provided in the main part of the main body 20 near the inlet 22.
[0043]
The accumulator 50 is fixed to a main part of the main body 20 by crimping and fixing a buffer plate 26 of an operating diaphragm by screwing a lid 29 with a mounting screw 30 via a buffer plate presser 27. An accumulator spring 28 is provided for recovery of the pressure receiving depression of the buffer plate 26. It should be noted that a spring seat may be interposed between the spring 28 and the buffer plate 26.
[0044]
Next, as shown in FIG. 3, the check valve 55 provided in the electromagnetic plunger 38 is closed by the valve body 42 being pressed against the valve seat 43 by the valve spring 44 housed in the valve cylinder 41. . When a liquid flows into a tube cylinder 39 in which the electromagnetic plunger 38, which will be described later, performs a return stroke, the inflow pressure of the liquid due to the return stroke of the electromagnetic plunger 38 is further added to the static pressure of the inflowing liquid flowing in from the inlet 22 of the pump. In addition, since the flow rate increases, the valve body 42 of the check valve 55 is pushed up by this water flow, and the back portion of the check valve 55 may block the outflow hole inside the valve cylinder 41 into which the check valve 55 is fitted. May interfere with distribution to the side. Therefore, in order to prevent the occurrence of such a situation, a flow passage 52 for bypassing the liquid is provided in the outer main portion of the valve cylinder.
[0045]
A discharge-side check valve is not provided downstream of the check valve 55. Instead, the cross-sectional area is larger than the inner diameter of the valve seat 43 as well as the inlet 22 at the downstream end of the magnetic head 35. In order to make it much smaller, an orifice 53 with a smaller inner diameter was provided.
[0046]
The reason is that the hydraulic pressure of the plus head is originally applied from the inflow side of the pump, and there is a flow resistance due to the relatively small diameter orifice 53 during the return stroke of the electromagnetic plunger, and the discharge port 24, that is, from the downstream side. This is because the influence of backflow is small.
[0047]
Further, in an electromagnetic pump in which an electromagnetic plunger also serves as a discharge plunger in an inline type and a check valve is built in, an annular magnetic pole 35 'as shown in a longitudinal explanatory view partially showing its cross section in FIG. A so-called magnetic leakage type electromagnetic plunger pump externally fitted and fixed to the end portion of 39 'occupies the majority. In other words, this form has a characteristic that the so-called voltage flow rate characteristic of the voltage applied to the electromagnetic coil versus the discharge pressure flow rate of the pump is relatively stable under a voltage in a predetermined range band, and is resistant to voltage fluctuations. Flow rate fluctuation is relatively small. In addition, there is an advantage that there is no possibility of noise and damage caused by the electromagnetic plunger hitting the magnetic head at the time of initial start for sucking liquid.
[0048]
However, since the annular magnetic pole 35 'is externally fitted to the tube column cylinder 39', the entire pump becomes relatively large, and in the case of the present invention, there is no need for downsizing for use.
[0049]
The reference numerals in FIG. 5 are the same members as in FIG. 1 with a dash.
[0050]
For the reason described above, the electromagnetic pump of the present invention needs to be downsized, so the so-called inner magnetic path type is selected.
[0051]
That is, the configuration is such that the magnetic head 35 facing the electromagnetic plunger 38 is internally fitted and fixed at the end portion of the tube column cylinder 39. The electromagnetic plunger 38 is tapered at the end facing the opposing magnetic head 35, and the magnetic head 35 is also reverse-tapered so as to be sandwiched between the return spring 36 and the holding spring 40. The pressed electromagnetic plunger 38 has a magnetic gap g between the ends when it is stationary.
[0052]
The taper at the end of the electromagnetic plunger 38 is considered to have the highest magnetic efficiency at an angle of about 60 °, and this has been confirmed experimentally. The reverse taper of the end face on the side of the magnetic head 35 facing this needs to be an angle slightly larger than this.
[0053]
When the gas is mixed in the gas or the liquid at the initial stage of the pump start, the resistance of the liquid and the pressure due to the pressure is reduced, so that the electromagnetic plunger 38 is so-called overshoot and the end thereof is the magnetic head. This is because there is a possibility that a so-called idling phenomenon that collides with the surface 35 occurs, the contact surface portions are damaged with each other, and for this reason, they are fitted and cannot be removed. Although this inner magnetic path type electromagnetic pump has a drawback that chattering noise due to the collision is likely to occur, the use example of the present invention, that is, a liquid having a predetermined static pressure from the inflow side is further pumped. In the case of jetting under pressure, as long as the pump has already been filled with a liquid having pressure, the chances of idling are reduced, and the discharge performance with respect to the discharge pressure and flow rate required by the pump. When there is a margin of time, this idling phenomenon can also be prevented by increasing the repulsive force of the return spring 36.
[0054]
In this type of electromagnetic pump, the magnetic head 35 and the electromagnetic plunger 38 are opposed to each other with a magnetic gap g to form a magnetic circuit in the tube column cylinder 39. Therefore, the so-called magnetic leak type electromagnetic pump shown in FIG. It has better magnetic efficiency than a pump, can be combined in a small size compared to the discharge performance, and is space-saving and inexpensive. Therefore, in the present invention, this type of electromagnetic pump shown in FIG. 1 is selected.
[0055]
Next, the drain valve 51 provided in the discharge joint 23 will be described. FIG. 4 is an explanatory diagram of the AA cross section of FIG. A drain valve body 46 is engaged with a drain valve seat 47 having a drain port 25 fitted and fixed to an end portion of the discharge joint 23 so as to be closed. A plurality of, that is, four, convex valve body guides 48 in FIG. 5 are circumscribed on the drain valve body 46, and are parallel to the inner circumferential wall of the inner cavity of the discharge joint 23 in which the valve body 46 is accommodated. Is formed.
[0056]
Regarding the discharge of residual water after the use of the warm water toilet seat in the column of the problem to be solved by the present invention, this will be further described with respect to the discharge mechanism, that is, the operation of the drain valve 51.
[0057]
In the drain valve 51, when the warm water, that is, the hot water of 30 to 40 ° C. flows into the discharge joint 23 using the warm water toilet seat, and the temperature is maintained, the drain valve body 46 is removed from the drain valve body 46. The SMA spring 45, which is a coil spring having a shape memory alloy that presses on the seat 47, has a drain valve body 46 and a bias spring 49 that is supported by pressure from the back thereof together with the spring, at room temperature or when cold water remains. When the temperature is lower than the above temperature, the repulsive force causes the drain valve seat 47 to open, the drain port 25 to open and the remaining water to be discharged as indicated by the arrow C. Heated by the temperature, the bias spring 49 is compressed in reverse, and the SMA spring 45 returns to its original shape due to its shape memory when it is smoked, that is, expands. Therefore, the drain valve seat 47 is closed by the drain valve body 46, and the hot water is discharged from the discharge port 24 by the pump as shown by the arrow b, and then is ejected from the nozzle 15 through the nozzle cylinder 14 to perform a washing action.
[0058]
After the use of this toilet seat, when the discharge of hot water is finished, it is cooled again, the SMA spring 45 is compressed by the bias spring 49, the drain valve body 46 opens the drain valve seat 47, and the residual water is The drain valve 51 is discharged from the drain port 25 and plays its role.
[0059]
The SMA spring 45 is an acronym for Shape Memory Alloy. In this case, the shape memory alloy was a Ni-Ti based material.
[0060]
When the drain valve body 46 of the drain valve 51 opens the drain valve seat 47, the separation dimension, that is, the lift may be 1/4 of the diameter of the drain port 25. Even if it is 4 mm, it is sufficient that the lift is at least 1 mm. Therefore, the SMA spring 45 is extended when hot water passes and the drain valve body 46 is sufficiently connected to the drain valve seat 47.CloseThe bias spring can be omitted if it is possible to use a shape memory alloy that can contract and open the drain valve 51 when the temperature drops after the hot water discharge ends and can secure at least the slight lift.
[0061]
In addition, in the case of the above-described warm water flush toilet seat, when inflowing liquid having a static pressure is flowing in advance from the inflow side of the pump, the drain valve body 46 can press and close the drain valve seat 47 by the pressure. However, the inflow pressure may be low depending on circumstances, and fluctuations in pressure at the time of the suction stroke of the pump may cause so-called fluttering and noise generation of the valve body. To avoid this, the SMA spring 45 It requires intervention.However, the cross-sectional area of the drain valve seat 47 at the end of the drain port 26 is made relatively small so that the valve can continue to be closed even if the pressure applied to the back of the drain valve body 46 that presses this is low. It is also conceivable to select the valve seat diameter dimension of the area to prevent the fluttering, noise and water leakage.
[0062]
When the atmospheric temperature exceeds 30 ° C. in the hot season, the SMA spring 45 extends and the drain valve body 46 presses and closes the drain valve seat 47. Since the liquid to be discharged is already warm, there is no adverse effect of discomfort caused by cold water, and there is no risk of freezing.
[0063]
The drain valve body 46 shown in FIG. 1 is sandwiched between the SMA spring 45 and the bias spring 49 in directions opposite to each other, and this is used as a mounting member for the drain valve body 46 to provide a space between the two springs. There is no problem even if it is pressed.
[0064]
Furthermore, the SMA spring 45 may be replaced by a bellows or the like enclosing a fluid that contracts or expands due to a bimetal or a heat sensitive temperature, and may constitute the drain valve 51.
[0065]
Further, the water drain valve 51 can be configured with a current-carrying electromagnetic valve, and can be closed only during washing, and can always be opened to discharge residual water.
[0066]
Next, features of the operation of the electromagnetic pump according to the present invention will be described.
[0067]
As described above, for example, the pressure of 0.5 kgf / cm regulated in advance near the predetermined value by the pressure reducing valve 11 from the inflow side.²(In middle- and high-rise buildings such as buildings, condominiums, etc., there must be some allowance depending on the state of water use in the distribution system, many faucets and equipment) As a result, the hot water heated by the instantaneous boiling hot water heater 13 flows through the inlet 22 of the inflow joint 21 of the electromagnetic pump 1 into the main body 20 as shown by an arrow a.
[0068]
The pressure of the liquid, that is, tap water at this time is shown by (a) in FIG. The horizontal axis is time tm sec and the vertical axis is pressure Pkgf / cm.²Is taken. Pressure is 0.7-0.75kgf / cm, which is slightly higher for the reasons mentioned above²Is shown. The change in the pressure waveform is considered to be caused by the fluctuation of the water consumption of the distribution channel in the building, the characteristics of the equipment such as the valve reducing valve, the flow characteristics of the piping equipment, and the like.
[0069]
Incidentally, at this time, the water supply tank 9 was installed on the roof of the fifth floor of the building, the pressure reducing valve 11 was the second floor, and the water head H was about 12 m.
[0070]
The intermittent pulse current energizing the electromagnetic coil 34 has a frequency of 71.7H during normal local washing at this time._ZThis is the result of many experiments. The pump discharge pressure waveform at the time of the energizing current is shown in FIG.
[0071]
This also takes time tmsec on the horizontal axis and pressure Pkgf / cm on the vertical axis.²Is taken.
[0072]
The conduction period in the cycle is about 5 msec.
[0073]
The frequency of the energizing current at the time of soft washing of the above-mentioned local washing is 76 Hz, and the frequency of the energizing current at the time of other local washing that such a hot water washing toilet seat often has is much softer. For example, it is regulated to 99.9 Hz so as to be suitable for soft washing.
[0074]
Then, as is apparent from the diagram of FIG. 6B, a wave-like shocking pulsation that is pressurized by the electromagnetic pump 1 is given to the inflow pressure, and the nozzle cylinder 14 is moved from the discharge port 24 as indicated by an arrow b. After that, the pressure when jetting from the nozzle 15 is almost 1.8kgf / cm²The peak value of is shown.
[0075]
The configuration and operation of the drain valve 51 relating to the treatment of the residual water is as described above.
[0076]
The point that the electromagnetic plunger 38 reciprocates to perform the pump action by energizing the intermittent pulse current of the electromagnetic pump 1 to the electromagnetic coil 34 is not described further, and is also described in the prior art document. Since it is a matter that has been done, it is omitted.
[0077]
However, the necessity of attaching the accumulator 50 to the main body 20 integrally on the inflow side of the pump, which is not necessary for the conventional electromagnetic pump, will be described below.
[0078]
As described above, the electromagnetic pump according to the present invention is different from the one that needs to smooth the discharge pressure of the conventional washing water pump, and gives the pulsed pulsation to be ejected from the nozzle to enhance the washing effect. Therefore, an accumulator is naturally unnecessary on the discharge side. However, regardless of whether positive static pressure is applied to the inflow side, during the forward stroke by the suction of the magnetic force applied to the electromagnetic coil 34 of the electromagnetic plunger 38, the suction action to the tube cylinder 39 accompanying the discharge action is also caused. For this reason, the pump inlet side also generates back pressure due to pulsation, and propagates and vibrates in the piping system connected to the inflow side. Therefore, in order to prevent this vibration and noise from occurring, The accumulator 50 is provided with an accumulator 50 that absorbs pulsation. The accumulator 50 has a buffering action of the pulsation of the buffer plate 26 of the working diaphragm and a livestock action that discharges the voltage absorption, and the discharge pressure waveform of 1.8 kgf / cm.²Among them, 0.2kgf / cm²It was confirmed experimentally that the increased pressure was added.
[0079]
The discharge performance of the pump is enhanced by the accumulator 50 disposed integrally on the inflow side of the main body 20.
[0080]
Thus, the washing effect is enhanced by superimposing the pressure applied to the inflow side of the pump and the discharge pressure pulsating and pulsating the pump, and jetting washing water. As described above, the conventional washing water is used once. It was proved by many experiments that 40% of what required about 1.1 liters was sufficient, and the effect of saving water was obtained at the same time.
[0081]
As described above, the electromagnetic pump of the present invention has been described as one example of its use with a warm water toilet seat. However, the present invention is not limited to this, as described above, facial cleansing beauty, oral hygiene cleaning, insurance massage. In addition, it is possible to consider uses such as for washing, including the addition of a washing agent solution addition liquid for containers.
[0082]
In addition, liquids such as chemicals and / or fresh water to which these are added can be used for sterilization, disinfection, washing, etc. of human body parts such as hands or equipment etc. It is.
[0083]
【The invention's effect】
As described above in detail, the electromagnetic pump for a washing and pouring liquid pulsation generator according to the present invention has the following effects.
[0084]
(A) As claimed in claim 1, in consideration of the static pressure with almost no pulsation of the liquid entering from the inflow side of the pump, the electromagnetic coil is used for the pump. By activating the electromagnetic plunger by energizing the intermittent pulse current set in accordance with the pressure and applying a wave-like shocking pulsation to discharge the jet from the discharge side, for example, this pump can be used for sanitary hot water. After use of the toilet seat, etc., the washing effect was enhanced when used as a discharge of local body wash water, and the wash water was reduced to about 40% of the conventional one, thereby saving water.
[0085]
(B) Since an accumulator provided with a buffer plate is integrally provided on the inflow side of the pump body, the suction action to the tube cylinder is caused simultaneously with the discharge pulsation of the pump. Therefore, when back pressure due to the pulsation is generated also on the inlet side of the pump, the vibration due to the pulsation propagating to the piping system connected to the inflow side is absorbed and a buffering action is performed to prevent noise generation. . Furthermore, as described above, the discharge capacity of the pump is enhanced by the effect of the livestock action that discharges the pressure-absorbed absorption during the buffering action.
[0086]
(C) A discharge valve that should normally be provided is omitted downstream of the check valve on the inflow side provided in the electromagnetic plunger, and a relatively small-diameter orifice is provided instead to simplify the configuration. The flow passage drilled from the inside of the valve cylinder containing the non-return valve body to the outer main part presses the outflow hole on the inner side of the valve cylinder by the pressure at the back of the check valve body by the pressure of the electromagnetic plunger. It is a bypass path when trying to close, and can discharge without disturbing the outflow of fluid.
[0087]
(D) Further, the magnetic head facing the tapered end portion of the electromagnetic plunger and facing the end is fitted and fixed at the end portion of the tube column cylinder, and is connected to the end surface of the electromagnetic plunger. A so-called inner magnetic path type with a magnetic gap formed between them, the magnetic leakage type and the magnetic path configuration are different, and the loss of the magnetic circuit is small, so the pump output is relatively high, and the size and weight are also reduced. It can be measured, and it can contribute to the miniaturization of applied equipment by saving the space for mounting the pump.
[0088]
(E) Furthermore, the discharge side downstream end portion of the electromagnetic pump is opened during normal discharge operation of the pump, and liquid is poured out from the discharge port, and is opened when the discharge operation is stopped and paused. Since the residual liquid is discharged from the water outlet to the outside of the pump and a water drain valve is provided to prevent the outflow from the outlet, when this pump is used for, for example, washing water discharge of a sanitary hot water toilet seat, The cleaning operation is finished, and when the pump discharge is stopped, the residual liquid is cooled, and when it is restarted, it is sprayed on the human body and feels uncomfortable feeling cold. There is no longer any risk of damage.
[0089]
(F) The electromagnetic pump of the present invention is not only for washing water discharge of the above-mentioned sanitary hot water toilet seat, but also for washing, including face washing beauty, oral hygiene washing, insurance massage, addition of detergent solution, injection, etc. It can be used for improving cleaning effect and saving water.
[0090]
In addition to this, a liquid such as a chemical solution and / or a fresh water to which this is added can be discharged by the same pumping action as described above and used for sterilization, disinfection, washing, etc. of human body parts such as hands or equipment. Is.
[Brief description of the drawings]
FIG. 1 is an enlarged longitudinal sectional view showing a partial cross section of an embodiment of an electromagnetic pump according to the present invention.
FIG. 2 is a configuration diagram including pipe connection of a warm water toilet seat, which is an application example of the electromagnetic pump according to the embodiment shown in FIG. 1 of the present invention.
FIG. 3 is a longitudinal explanatory view of a check valve provided in the electromagnetic plunger of the electromagnetic pump shown in FIG. 1;
4 is a cross-sectional explanatory view showing a valve body guide and the like of a drain valve showing a cross section AA in FIG. 1. FIG.
FIG. 5 is a longitudinal explanatory view showing a partial cross section of an electromagnetic pump belonging to the prior art.
6A is a diagram showing the pressure characteristics of tap water having a static pressure with very little pulsation applied to the inflow side of the electromagnetic pump. FIG.
(B) It is a discharge pressure waveform diagram when the tap water having the static pressure of FIG. 6 (a) is pressurized by the electromagnetic pump of FIG.
[Explanation of symbols]
1 Electromagnetic pump
20 body
21 Inflow joint
22 Inlet
23 Discharge joint
24 Discharge port
25 Water outlet
26 Buffer plate
31 yoke
32 Outer frame iron
33 bobbins
34 Electromagnetic coil
35 Magnetic head
36 Return spring
37 Annular Magnetic Path
38 Electromagnetic plunger
39 Tube cylinder
40 Holding spring
41 Valve
42 Disc
43 Valve seat
44 Valve spring
45 SMA spring
46 Water drain valve
47 Drain valve seat
48 Disc guide
49 Bias spring
50 Accumulator
51 Drain valve
52 Passage
53 Orifice
55 Check valve

Claims (4)

An in-line type pump having an electromagnetic plunger having a check valve that is slidable and reciprocable by a magnetic force and a repulsive force of a spring alternately acting in a tube cylinder surrounded by an electromagnetic coil,
The electromagnetic coil is actuated with an intermittent pulse current set in accordance with the application, and the electromagnetic plunger is actuated by focusing on the static pressure of the liquid entering from the inflow side, which is regulated to a substantially predetermined value. , And pressurizing this, giving a wave-like shocking pulsation, and having a configuration of jet discharge from the discharge side,
In addition, an accumulator equipped with a buffer plate with an operating diaphragm for restricting the vibration of the inflow side piping due to the inflow side pulsation caused by the discharge pulsation of the pump is integrated with the inflow side of the main body. An electromagnetic pump for a washing and pouring liquid pulsation generator characterized by being arranged in the above. An orifice is provided downstream of the check valve on the inflow side provided in the electromagnetic plunger in place of the discharge valve, and the check is determined by the pressure from the inflow side and the pressure at the inflow stroke of the pump added thereto. 2. A flow passage that bypasses even when the back portion of the valve body may press and close the outflow hole inside the valve cylinder into which the valve body is fitted, is formed in the outer main portion of the valve cylinder. Electromagnetic pump for washing liquid injection pulsation generator. The magnetic head that faces the tapered end of the electromagnetic plunger and is opposed to the inner end of the tube cylinder, and has a magnetic gap formed between the end of the electromagnetic plunger. An electromagnetic pump for a washing and pouring liquid pulsation generating device according to any one of claims 1 and 2, characterized in that: The electromagnetic pump is closed to the downstream end of the discharge side when the pump discharges, and the liquid is discharged from the discharge port. The liquid is discharged when the operation is stopped, and the residual liquid is discharged from the water outlet to the outside of the pump. An electromagnetic pump for a washing and pouring liquid pulsation generator according to claim 1, further comprising a drain valve for preventing outflow from the discharge port.

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