JP3162420U - Electromagnetic vibration pump with frequency and voltage conversion function - Google Patents

Abstract

An electromagnetic vibration type diaphragm pump that makes the voltage value and frequency of an alternating voltage applied to an electromagnet constant and minimizes changes in the amount of air and the power value due to voltage fluctuation and frequency fluctuation of the voltage applied to the electromagnet. provide. A lower housing provided below an electromagnetic drive unit, an upper housing made of a synthetic resin connected to the lower housing via a vibration absorber and covering the electromagnetic drive unit from above, and a lower housing including the electromagnetic drive unit A tank upper wall contacting the tank, and one or more pillars extending downward from the tank upper wall and contacting the tank cover; and an inverter attached to the upper housing, wherein the inverter is applied to the electromagnet It comprises a voltage monitoring unit that monitors the voltage value of the AC voltage, a control unit that keeps the applied voltage applied to the electromagnet constant, and an AC waveform generation unit that generates an AC waveform that drives the pump. [Selection] Figure 1

Description

  The present invention relates to an electromagnetic vibration type pump having a frequency and voltage conversion function. More specifically, it is an electromagnetic vibration type pump driven by an AC power source, and by a magnetic interaction between a vibrator with a permanent magnet connected to a diaphragm and two electromagnets provided across the vibrator, The present invention relates to an electromagnetic vibration type diaphragm pump that reciprocates a vibrator, drives a diaphragm, and sucks and discharges air. The electromagnetic vibration type pump of the present invention is used in household septic tanks, fish tanks and the like.

  A known pump has a rod-shaped body that functions as a vibrator having permanent magnets arranged between two electromagnets by placing two electromagnets that are completed by winding a coil around an iron core on which iron plates are laminated. The vibrator is vibrated by attracting and repelling an electromagnet with a permanent magnet by an AC voltage by being connected and fixed to the diaphragm, and the volume of the pump compression chamber is changed by the displacement of the diaphragm to send or suck air (Patent Document 1). reference).

  Patent Document 2 discloses a voltage / frequency command for inputting a voltage applied to an electromagnet part, a magnetic flux command voltage, a pump pressure command, a flow rate command, and an output voltage of a magnetic flux detection means, and outputting a command voltage and a command frequency. And a variable voltage / frequency power supply means controlled by the voltage / frequency command means are disclosed, and optimal control of the pump is performed without using an expensive flow meter or pressure gauge for detecting a load. .

  On the other hand, septic tanks that require pumps have recently been reduced in size and performance, and the amount of air required by septic tanks has also increased. In addition, in response to the global trend of environmental performance improvement and energy saving, the Ministry of the Environment has established energy saving standards. When installing septic tanks in each municipality, if subsidies are within the standards, subsidies can be used. , Promoting energy-saving septic tanks.

JP 2002-371968 A JP 2006-29258 A

  In conventional pumps, when the frequency and voltage of the AC voltage change, the amount of air sucked and discharged changes accordingly, making it impossible to secure the amount of air required for septic tanks and fish tanks. There was a problem that it did not match the power value. For example, the pump suction amount (or discharge amount) varies depending on the difference between the frequency of the commercial power source between the West Japan region and the East Japan region (that is, the difference between the commercial frequency of 50 Hz and 60 Hz).

  Therefore, in view of such circumstances, the present invention makes the voltage value and frequency of the AC voltage applied to the electromagnet constant in the pump for the septic tank and the fish tank, and changes the voltage and frequency variation of the voltage applied to the electromagnet. It minimizes changes in air volume and power value.

  An electromagnetic vibration type diaphragm pump according to the present invention includes an electromagnetic drive unit including a pair of electromagnets arranged opposite to each other and a rod-like body including a permanent magnet, and the pair of electromagnets and the permanent magnets are magnetically coupled to each other. An electromagnetic vibration type diaphragm pump for a septic tank or a water tank that reciprocates a diaphragm connected to both ends or one end of the rod-like body by an action, wherein the electromagnetic vibration type diaphragm pump is mounted with the electromagnetic driving unit. A lower housing provided below the electromagnetic drive unit, a synthetic resin upper housing connected to the lower housing via a vibration absorber, and covering the electromagnetic drive unit from above, and the lower housing. A tank upper wall in contact with the drive unit, one or more pillars extending downward from the tank upper wall and in contact with the tank cover; An inverter attached to a housing, wherein the inverter monitors a voltage value of an alternating voltage applied to the electromagnet, a control unit that makes a constant applied voltage applied to the electromagnet, and And an AC waveform generator for generating an AC waveform for driving the pump.

  According to the electromagnetic vibration type diaphragm pump according to the present invention, since the frequency of the commercial power source applied from the outside is controlled to a predetermined constant frequency and applied to the electromagnet unit, the frequency change of the commercial power source, Or it can suppress that the suction amount (or discharge amount) of a pump fluctuates by frequency fluctuation.

  Further, according to the electromagnetic vibration type diaphragm pump according to the present invention, since the voltage of the commercial power source applied from the outside is controlled to a predetermined constant voltage and applied to the electromagnet unit, the voltage fluctuation of the commercial power source Therefore, it is possible to suppress fluctuations in the suction amount (or discharge amount) of the pump.

It is explanatory drawing for demonstrating the electromagnetic vibration type pump of this invention. It is explanatory drawing which shows one Embodiment of the electromagnetic vibration type pump of this invention. It is explanatory drawing for demonstrating the housing of the electromagnetic vibration type pump of this invention. It is explanatory drawing for demonstrating the inverter used for the electromagnetic vibration type pump of this invention.

  Hereinafter, an electromagnetic vibration type diaphragm pump according to the present invention will be described in detail with reference to the accompanying drawings. 1 includes a pair of electromagnet parts M in which a coil 3 is wound around an E-type iron core 2 having a substantially E-shaped cross section, and a permanent magnet 4. The electromagnetic vibration diaphragm pump 1 shown in FIG. A rod-shaped body 5, a pair of diaphragms DF provided at both ends of the rod-shaped body 5, and a pair of compression chambers CR <b> 1 partitioned by the diaphragm DF are provided. A pair of opposing electromagnet portions M are fixed to the pump casing 6.

  When an alternating voltage is applied to the electromagnet part M, an alternating magnetic field is generated, and the permanent magnet 4 provided on the rod-like body 5 is attracted or repelled by the electromagnet part M, whereby the rod-like form provided with the permanent magnet 4 is provided. The body 5 vibrates left and right. Due to the reciprocating motion of the rod-shaped body 5, the diaphragm DF attached to both ends of the rod-shaped body 5 is bent to the left and right in FIG. 1, so that the volume in the compression chamber CR1 is expanded or contracted, and the volume in the compression chamber CR1 is reduced. When the pressure increases, the pressure in the compression chamber CR1 decreases, the suction valve 7 opens, and air is sucked into the compression chamber CR1 from the suction chamber CR2. When the volume in the compression chamber CR1 decreases, the pressure in the compression chamber CR1 increases, the discharge valve 8 opens, and air is discharged from the compression chamber CR1 to the discharge chamber CR3.

  As shown in FIG. 2, the pump 1 includes an E-type iron core 2, a coil 3, a rod-like body 5 provided with a permanent magnet 4, a diaphragm DF, a compression chamber CR1, a suction chamber CR2, and a discharge chamber CR3. You may comprise from the lower housing 61 in which the electromagnetic drive part MA is mounted, the upper housing 62 which covers the electromagnetic drive part MA from the upper direction of the lower housing 61, and the housing cover 63 which covers the upper housing 62 further from the upper part. A vibration absorber SA such as packing is provided between the lower housing 61, the upper housing 62, and the housing cover 63 in order to absorb vibration generated in the electromagnetic drive unit MA.

As shown in FIGS. 1 and 2, the pump 1 further includes an inverter I for supplying a constant frequency and a constant voltage value to the coil 3. As shown in FIG. 2, the inverter I is provided in a space between the upper housing 62 and the lower housing 61, and is fixed to the upper housing 62 by known fixing means such as screws. By providing the inverter I integrally with the upper housing 62 and incorporating the inverter I into the pump 1, a compact and highly efficient pump that operates at a single optimum frequency can be provided.

  As shown in FIGS. 2 and 3, a column 61 b that extends downward in FIG. 3 from the tank upper wall 61 a of the lower housing 61 and contacts the tank cover 64 is provided. One or more pillars 61b are provided, and the tank cover 64 presses the pillar 61b toward the tank upper wall 61a to bring it into close contact with the tank upper wall 61a. When the transmitted vibration is transmitted to the tank cover 64, the vibration of the pump 1 is reduced and noise can be reduced.

  The column 61b may be a columnar column, but may be a polygonal shape or a cylindrical shape.

  Moreover, it is preferable that the column 61b is an area of about tank inner upper surface area × 0.2.

  The material of the column 61b is preferably a synthetic resin because it attenuates vibration.

  2 and 3, the pump 1 is fixed to the lower housing 61 and is provided with an upper housing 62 that covers the electromagnetic drive unit MA together with the lower housing 61. 2 and 3, the upper housing 62 is fixed to the lower housing 61 via a vibration absorber SA such as packing. Since the vibration absorber SA is provided over the entire fixing portion of the lower housing 61 and the upper housing 62, the upper housing 62 and the lower housing 61 are not in direct contact with each other. The vibration transmitted to the lower housing 61 is not directly transmitted to the upper housing 62 but is transmitted to the upper housing 62 side after being attenuated by the vibration absorber SA, so that the vibration of the pump 1 can be reduced and the noise can be reduced. can do. Further, since vibration is not easily transmitted to the upper housing 62, the inverter I can be prevented from being damaged. Further, it is possible to prevent parts on the board from dropping off due to vibration or the like.

  As a material of the vibration absorber SA, synthetic rubber is preferably employed.

  In addition, the upper housing 62 and the lower housing 61 are fixed at the flange portions 61c and 62a provided on the upper housing 62 and the lower housing 61 by screws S and nuts N, which are known fixing means. The upper housing 62 is made of synthetic resin, and, for example, ABS resin is preferably employed.

  A boss portion 62 b protruding upward is provided from the flange portion 62 a of the upper housing 62. In the boss portion 62b protruding upward, a hole through which a fixing means such as a screw S is inserted extends upward along the longitudinal direction of the screw S, and vibration transmitted through the screw is caused by a synthetic resin boss. Since the distance at which vibration is transmitted in the portion 62b is increased, the vibration is attenuated by the characteristics of the synthetic resin, and the vibration generated in the electromagnetic drive unit MA and transmitted to the lower housing 61 is difficult to be transmitted to the upper housing 62 by the screw S. Thus, the vibration of the pump 1 can be reduced and the noise can be reduced. Since the vibration is attenuated by the boss portion 62b, the vibration to the inverter I fixed to the upper housing 62 is attenuated, and damage to the inverter I can be prevented.

  As shown in FIGS. 1 and 4, the inverter I is provided between a power plug P and a coil 3 for connection to a power source such as an outlet. By providing the inverter I, the power supply voltage supplied from a different power source depending on the region is changed to a predetermined constant value, for example, 100V AC voltage, and the power source frequency different depending on the region is set to a predetermined constant value, for example 60 Hz. Therefore, changes in the air amount and power value due to voltage fluctuations and frequency fluctuations can be minimized.

  As shown in FIG. 4, the inverter I includes a voltage monitoring unit I1 that constantly monitors the voltage value of the AC voltage supplied from the power supply, and a control unit I2 that keeps the applied voltage applied to the coil 3 of the pump 1 constant. And an AC waveform generator I3 that generates an AC waveform for driving the pump 1.

  The voltage monitoring unit I1 is a circuit that monitors the AC voltage supplied from the power supply via the plug P. The voltage monitoring unit I1 detects the current voltage value V of the AC voltage supplied from the power source, and constantly monitors how many V the current voltage value is. When the voltage value V is monitored by the voltage monitoring unit I1 and the voltage value does not coincide with the desired voltage Vth, that is, when the voltage value V is lower than the voltage Vth, the duty ratio of the AC waveform that drives the pump 1 is controlled. Thus, the controller I2 controls the AC waveform generator I3 so that the pump drive voltage is increased and, conversely, when the voltage value V is high, the drive voltage of the pump 1 is decreased.

  The AC waveform generator I3 controls the power frequency F supplied from the power source to a desired frequency Fth preset by the controller I2, for example, 60 Hz, and supplies it to the coil 3 of the pump 1. The AC waveform generator I3 is controlled by the controller I2, and outputs a desired voltage Vth to the coil 3 of the pump 1 of the AC waveform generator I3.

  The voltage is converted to a desired frequency Fth set in advance, and an AC voltage having the converted frequency Fth is supplied to the coil 3 of the pump 1.

  Therefore, fluctuations in the AC voltage and frequency supplied from the AC waveform generator I3 to the coil 3 of the pump 1 are controlled to the preset desired voltage Vth and desired frequency Fth, and the change in the frequency F of the power supply The fluctuation of the air suction amount and the air discharge amount of the pump 1 due to the fluctuation of the voltage V can be prevented.

DESCRIPTION OF SYMBOLS 1 Pump 2 E type iron core 3 Coil 4 Permanent magnet 5 Rod-shaped body 61 Lower housing 61a Tank upper wall 61b Column 61c, 62a Flange part 62 Upper housing 63 Housing cover 64 Tank cover CR1 Compression chamber CR2 Suction chamber CR3 Discharge chamber DF Diaphragm I Inverter I1 Voltage monitoring unit I2 Control unit I3 AC waveform generation unit M Electromagnet unit P Plug SA Vibration absorber

Claims (1)

An electromagnetic drive unit comprising a pair of electromagnets arranged opposite to each other and a rod-shaped body provided with a permanent magnet, and both ends or one end of the rod-shaped body by a magnetic interaction between the pair of electromagnets and the permanent magnet An electromagnetic vibration type diaphragm pump for a septic tank or a water tank for reciprocating a diaphragm connected to
The electromagnetic vibration type diaphragm pump comprises:
A lower housing provided below the electromagnetic drive unit on which the electromagnetic drive unit is placed, and an upper housing made of a synthetic resin connected to the lower housing via a vibration absorber and covering the electromagnetic drive unit from above And the lower housing, the tank upper wall in contact with the electromagnetic drive unit,
One or more pillars extending downward from the tank upper wall and contacting the tank cover;
Comprising an inverter attached to the upper housing;
A voltage monitoring unit for monitoring a voltage value of an AC voltage applied to the electromagnet by the inverter;
A control unit for making the applied voltage applied to the electromagnet constant;
An electromagnetic vibration type diaphragm pump characterized by comprising an AC waveform generator for generating an AC waveform for driving the pump.

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