JP2008057408A - Air pump and method for driving same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a high degree of safety by surely preventing an electric shock to a human body when an air pump dropped in water with the power source kept turned on is taken out. <P>SOLUTION: In the air pump P1 operating an electromagnetic pump drive device by alternating current power source and driving a diaphragm type pump device, alternating current power source from commercial alternating current power source is converted to direct current power source of necessary low voltage by an AC adopter 4, and direct current is converted to alternating current power source by an inverter device 5 and is supplied to the pump drive device. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air pump and a driving method thereof, and in particular, various purposes and applications that require air supply in a general home or office in addition to supplying air into the water of an aquarium for aquarium fish breeding. The present invention relates to a diaphragm vibration type small-sized air pump that can be used for the same and a driving method thereof.

In general, this type of air pump aerates the water in the aquarium for aquarium fish, forms an air lift on the water in the aquarium, or passes water through a filtration device that purifies the water in the aquarium. It is used to A conventional air pump includes a pump device having a diaphragm that sucks and sends out air, and a pump drive device of a type that drives a diaphragm with an arm with a magnet that reciprocates by the electromagnetic action of an electromagnetic drive mechanism. Is accommodated in a horizontally long, substantially rectangular parallelepiped case. Further, a rubber leg is attached to the bottom surface outside the case, and a power cord with a power plug connected to the pump drive device is extended from one side surface. This air pump is installed in the vicinity of the outside of the water tank. A hose is attached to the outlet of the air and connected to various instruments that send air, and the power cord is connected to the power source. This type of air pump is described in Patent Document 1 proposed by the present applicant.
Japanese Patent Laid-Open No. 8-159036

  However, since this type of air pump generally uses a household AC power supply, a high-voltage power supply that affects the human body is supplied to the air pump in operation.・ When the pump is used for aquariums for raising ornamental fish, it is often installed near the aquarium, so the user may accidentally drop the air pump into the water. -If the pump is left turned on and dropped into water, there is a risk of electric shock when taking it out, and there is a problem that a high degree of safety is required.

  The present invention solves such a conventional problem, and in this type of air pump, even if the air pump is turned on and dropped into the water, the human body will receive an electric shock when it is taken out. The purpose is to ensure a high level of safety.

  In order to achieve the above object, an air pump according to the present invention includes a diaphragm pump device that sucks and discharges air, an electromagnetic pump drive device that is operated by an AC power source and drives the pump device, and these And an AC adapter that has an AC power plug for connecting to a commercial AC power source and converts the AC power source to a required low voltage DC power source in an air pump that supplies air and includes a case for housing each part. An inverter device that is mechanically and electrically connected, converts the DC power source into AC power source, and supplies the AC power source to the pump driving device, and converts the commercial AC power source into a necessary low voltage AC power source to convert the pump driving device into the pump driving device. The main point is to supply to In this case, the inverter device is built in the case, and the AC adapter is connected to the inverter device built in the case via a cable. Further, the inverter device is integrally provided outside the case, the inverter device and the pump drive device are mechanically and electrically coupled, and the AC adapter is provided outside the case via a cable. You may make it connect to. Further, the inverter device is configured as an external type separate from the case, the inverter device and the AC adapter are mechanically and electrically coupled, and the inverter device and the pump drive device are connected via a cable. But you can.

  Further, the air pump driving method of the present invention operates an electromagnetic pump driving device by an AC power source, and in the air pump driving method for driving a diaphragm type pump device, an AC power source is supplied from a commercial AC power source. The gist is to convert the direct current power source to a necessary low voltage by an AC adapter, and to convert the direct current into an alternating current power source by an inverter device and supply the alternating current power source to the pump drive device.

  The air pump of the present invention and its driving method reliably prevent electric shock of the human body when the air pump is dropped into water even if it is dropped into water with the above configuration and method. Thus, a high degree of safety can be achieved.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2 show a first embodiment. As shown in FIG. 1 and FIG. 2, the air pump P1 is a small air pump that is attached to an aquarium for aquarium fish breeding and used to supply air into the aquarium water. Similarly to (Patent Document 1 invention), a diaphragm pump device 1 for sucking and sending air, and an electromagnetic pump drive device 2 that is operated by an AC power source and drives the pump device 1 are provided. Is housed in the case 3. The air pump P1 employs a specific power supply system, has an AC power plug 41 for connecting to a commercial AC power supply, and converts the AC power into a necessary low voltage DC power supply. And an inverter device 5 that is mechanically and electrically connected to the AC adapter 4 and converts the DC power into AC power and supplies the AC power to the pump driving device 2.

  The pump device 1 includes a tank 11 and a diaphragm 15. In this case, the tank 11 is made of a plastic material, and includes a base 12, and a diaphragm joint portion 13 and a columnar portion 14 raised on the base 12 so as to be adjacent to each other. The base 12 is formed in a box shape, and an air flow path is formed therein. A mounting flange 12 </ b> F having a screw hole projecting outward is also provided on the base 12. Diaphragm joint portion 13 is configured in a composite shape having a substantially D-shaped portion 13D continuous with base 12 and a substantially cylindrical portion 13R projecting on one surface thereof. An air flow path communicating with the air flow path in the base 12 is formed in the substantially D-shaped portion 13D. In addition, a projection 131 protruding upward is provided on the top of the substantially D-shaped portion 13D. An air inlet 132 is formed on the outer peripheral surface of the cylindrical portion 13R, and an air suction portion and a discharge portion are formed on a circular surface inside the cylindrical portion 13R. The columnar portion 14 is formed in a substantially rectangular parallelepiped shape, has an air flow path formed therein, and has a nozzle 141 (air) on the upper side of one side surface (side surface corresponding to one end surface of the case 3) opposite to the diaphragm joint portion 13. An outlet 140) is provided in a protruding manner, and a locking portion 142 having a substantially C-shaped cross section is provided on the upper portion of the other side surface of the diaphragm joint 13 adjacent to the substantially cylindrical portion 13R. The diaphragm 15 is formed of a rubber material in a substantially bowl shape as a whole, and a screw insertion portion for attaching an arm 23 employed in the pump drive device 2 is provided in a projecting shape at the center position on the outer surface thereof. It is airtightly attached to the diaphragm joint portion 13 (the cylindrical portion 13R) of the tank 11.

  The pump drive device 2 includes an electromagnetic drive mechanism 21 and an arm 23 with a magnet 22 that swings and moves by the electromagnetic action of the electromagnetic drive mechanism 21. In this case, the electromagnetic drive mechanism 21 includes a yoke that forms an electromagnetic circuit, a core attached to the yoke, and an electromagnetic coil wound around the core. The arm 23 is an elongated metal plate, and a part of the tip side is bent in a substantially right angle direction, and the magnet 22 is attached to the outer surface. Further, the base end side of the arm 23 is formed in a substantially C shape, and a screw insertion hole is formed in the middle. In this way, the arm 33 is mounted with a rubber cylindrical holding member at the base end, and is tiltably held by the locking portion 142 of the tank 11 via the holding member, and an intermediate screw insertion hole and a diaphragm are held. A screw is passed through the screw insertion portion at the center of 15, tightened into a nut, and mounted transversely on the working surface (deformation surface) of the diaphragm 15.

  The case 3 is formed of a plastic material, has a lower case 31 and an upper case 32, and is assembled into a substantially rectangular parallelepiped shape as a whole. The lower case 31 has an opening on the upper surface and includes a peripheral wall 311 and a bottom wall 312. In the lower case 31, leg attachment portions are formed at the four corners of the bottom wall 312, and the four legs 33 are attached. Further, an air intake port is formed in a projecting shape from the inner bottom surface toward the outer bottom surface on the bottom wall of the lower case 31 on the drive system housing portion 313 side, which will be described later, and a filter is loaded into the air intake port. The Inside the lower case 31, a drive system housing portion 313 for disposing each portion constituting the electromagnetic drive mechanism 21 on one end side thereof is defined by a partition wall. A yoke, a core, and an electromagnetic coil that constitute the electromagnetic drive mechanism 21 are incorporated in the drive system housing portion 313. Further, the other end side is formed with an operating system accommodating portion 314 for arranging each portion for performing the pump operation, and a concave portion into which the tank 11 can be fitted is formed on the bottom surface, and a semicircular shape is formed on the end surface of the accommodating portion. Nozzle insertion portion is provided. The tank 11 is inserted into the recess 314 by inserting the nozzle 141 through the nozzle insertion portion into the housing portion 314, and the diaphragm 15 and the arm 23 are incorporated together with the tank 11. An arm 23 mounted transversely on the action surface (deformation surface) of the diaphragm 15 extends toward the drive system housing portion 313, and a magnet 22 at the tip thereof is disposed opposite to the electromagnetic drive mechanism 21 (yoke). The tank 11 is fixed to the bottom surface of the lower case 31 by inserting a screw through a screw hole of the mounting flange 12F. On the other hand, the upper case 32 has a semicircular nozzle insertion portion corresponding to the semicircular nozzle insertion portion of the lower case 31 on its peripheral wall 321 (as shown in FIG. 1A), A boss hole 323 into which the protrusion 131 can be press-fitted is provided at a position corresponding to the protrusion 131 on the diaphragm joint portion 13 of the tank 11 incorporated in the lower case 31 on the top wall 322 (inside surface thereof). After the various devices 1 and 2 are assembled in the lower case 31, the upper case 32 is put on the lower case 31, the semicircular nozzle insertion portions are aligned, and the boss holes inside the upper case 32 The protrusion 131 of the tank 11 is press-fitted into the H.323, and the tank 11 is pressed from above. The lower case 31 and the upper case 32 are joined by screwing at four corners.

  In this way, the operating system and the driving system 1 and 2 of the air pump P1 are configured, and the electromagnetic pump driving device 2 is operated by the supply of AC power to drive the diaphragm pump device 1. It has become so. In the case of the air pump P1, as described above, the AC adapter 4 and the inverter device 5 are provided, and the AC power is converted from the commercial AC power source to the necessary low voltage DC power source by the AC adapter 4. A power supply method is used in which the current is converted into AC power by the inverter device 5 and supplied to the pump drive device 2.

  In the first embodiment, the inverter device 5 is an internal component of the air pump P1, and is configured by an inverter circuit, a transformer, and the like. The inverter device 5 is built in the case 3 (the drive system housing portion 313), and is an electromagnetic drive mechanism. A power jack J5 for connecting and supplying power to the inverter device 5 is provided on an appropriate surface of the case 3. On the other hand, the AC adapter 4 is an external part widely used in OA devices and portable terminals, and is connected to an adapter main body 43 that converts a 100V AC power source into a necessary low voltage, for example, a 12V DC power source, and a commercial AC power source. AC power plug 41, an AC cable 42 for supplying AC 100V AC power to the AC adapter main body 43 from the AC power plug 41, a DC cable 44 for supplying DC power of necessary low voltage (12V) from the adapter main body 43, and a case And a DC power plug 45 connected to the three power jacks J5. The AC adapter 4 may be configured such that the AC power plug 41 and the adapter main body 43 are integrated, and the AC cable 42 is omitted.

  When driving the air pump P1, the DC power plug 45 of the AC adapter 4 is inserted into the power jack J5 of the case 3, the AC adapter 4 and the inverter device 5 in the air pump P1 are connected, and the AC adapter 4 AC The power plug 41 is connected to a commercial AC power source (AC outlet) in a general household. The commercial AC power supply 100V AC power source is converted into a necessary low voltage DC power source, for example, 12V by the AC adapter 4, and this DC current is converted into an AC power source by the inverter device 5 inside the case 3 to be pumped. It is supplied to the drive device 2 (the electromagnetic drive mechanism 21 thereof). When an alternating current is applied to the pump drive device 2, the magnet 22 disposed opposite to the electromagnetic drive mechanism 21 is repeatedly attracted and repelled by the action (change in polarity) of the electromagnetic drive mechanism 21, and the arm 23 swings. Is done. The diaphragm 15 is vibrated by the swinging motion of the arm 23, and air is sucked and discharged, and the air taken in from the air intake 132 passes through the air flow path inside the tank 11 and passes through the nozzle 141 (air It is discharged from the outlet 140).

  Since the air pump P1 is driven by the necessary low voltage (for example, 12V) in this way, the air pump P1 is accidentally dropped into the water in the tank while the air pump P1 is driven. However, when taking out the air pump P1 from the water tank, there is no risk of electric shock to the human body, and the air pump P1 can be taken out safely.

  As described above, in the air pump P1, the electromagnetic pump driving device 2 is operated by the AC power source, and the air pump driving type for driving the diaphragm pump device 1 is changed from the commercial AC power source to the AC power source. Is converted into a necessary low voltage DC power source by the AC adapter 4, and this DC current is converted into an AC power source by the inverter device 5 and supplied to the pump drive device 2, so that the air pump P1 is supplied with power. Even if it falls into the water in the water tank, it will not affect the human body when it is taken out, and a high degree of safety can be achieved.

  In this embodiment, the inverter device is built in the case, the case is provided with a power jack for connecting and supplying power to the inverter device, and the AC adapter is a DC with a DC power plug for supplying DC power. Although the cable is used and the DC power plug is inserted into the power jack and connected to the inverter device, the AC adapter cable may be directly connected to the inverter device built in the case. By this direct connection method, the connection structure between the inverter device and the AC adapter can be simplified, and the cost can be reduced.

  FIG. 3 shows a second embodiment. As shown in FIG. 3, the air pump P2 is a small air pump that is attached to an aquarium for aquarium fish breeding and used to supply air into the aquarium water. A diaphragm type pump device that feeds out and an electromagnetic pump drive device that is operated by an AC power source and drives the pump device, and these parts are housed in a case 3. The air pump P2 also adopts a specific power supply system, has an AC power plug 61 for connecting to a commercial AC power source, and converts the AC power source into a necessary low voltage DC power source 6 And an inverter device 7 that is mechanically and electrically connected to the AC adapter 6 and converts the DC power into AC power and supplies it to the pump drive device. Here, since the pump device and the pump drive device are the same as those in the first embodiment, their duplicated explanation and illustration are omitted. Further, the case 3 is substantially the same as the first embodiment, but includes a different configuration in relation to the inverter device 7, and therefore, the first embodiment is shared with the portion common to the first embodiment. The same reference numerals are used and the description thereof is omitted, and the parts different from the first embodiment are added with the new reference numerals and the description is added. Since the AC adapter 6 and the inverter device 7 have slightly different configurations from those of the first embodiment, a description will be given by adding new reference numerals.

  In the case of this second embodiment, the inverter device 7 is an external part of the air pump P2 and is composed of an inverter circuit, a transformer, etc., and is accommodated in an inverter accommodating case 70, and is connected to the case 3 of the air pump P2. The inverter device 7 and the pump drive device are mechanically and electrically coupled to each other integrally. In this case, the inverter housing case 70 is provided with a power jack J7 for connecting and supplying power to the inverter device 7. The inverter housing case 70 may be detachably attached to the outside of the case 3 of the air pump P2, or may be completely integrated outside the case 3 of the air pump P2. On the other hand, the AC adapter 6 is an external part widely used in OA devices and portable terminals, and is connected to an adapter main body 63 that converts a 100V AC power source into a necessary low voltage, for example, a 12V DC power source, and a commercial AC power source. AC power plug 61, an AC cable 62 for supplying AC 100V AC power from the AC power plug 61 to the AC adapter main body 63, a DC cable 64 for supplying necessary low voltage DC power from the adapter main body 63, and an inverter housing case 70 And a DC power plug 65 connected to the power jack J7. The AC adapter 6 may be configured such that the AC power plug 61 and the adapter main body 63 are integrated, and the AC cable 62 is omitted.

  When driving the air pump P2, the DC power plug 65 of the AC adapter 6 is inserted into the power jack J7 of the inverter housing case 70, and the AC adapter 6 and the inverter device 7 outside the air pump P2 are connected. The AC power plug 61 is connected to a commercial AC power source (AC outlet) in a general household. A commercial AC power supply 100V AC power supply is converted into a necessary low voltage, for example, a 12V DC power supply by an AC adapter 6, and this DC current is converted into an AC power supply by an inverter device 7 outside the case 3 to be pumped. Supplied to the drive device (electromagnetic drive mechanism). When an alternating current is supplied to the pump drive device, the magnet disposed opposite to the electromagnetic drive mechanism repeatedly attracts and repels due to the action (change in polarity) of the electromagnetic drive mechanism, and the arm is swung. The diaphragm is vibrated by the swinging motion of the arm, and air is sucked and discharged, and the air taken in from the air intake port passes through the air flow path inside the tank and is discharged from the nozzle 141 (air outlet 140). Discharged.

  Since the air pump P2 is driven by the necessary low voltage (for example, 12V) in this way, the air pump P2 is accidentally dropped into the water in the tank while the air pump P2 is driven. However, when taking out the air pump P2 from the water tank, there is no risk of electric shock to the human body, and the air pump P2 can be taken out safely.

  As described above, in this air pump P2, an electromagnetic pump drive device is operated by an AC power source, and in the air pump drive format for driving a diaphragm pump device, an AC power source is supplied from a commercial AC power source, The AC adapter 6 converts it to a necessary low voltage DC power source, and this DC current is converted into an AC power source by the inverter device 7 and supplied to the pump drive device, so that the air pump P2 remains powered. Even if it is dropped into the water in the tank, there is no effect on the human body when taking it out, and a high degree of safety can be achieved.

  In this embodiment, the inverter device is integrally provided outside the case, the inverter device and the pump drive device are mechanically and electrically coupled, and the inverter device is connected and supplied with power. A power jack is provided, and the AC adapter has a DC cable with a DC power plug for supplying DC power, and the DC power plug is inserted into the power jack and connected to the inverter device. The cable of the AC adapter may be directly connected to an inverter device provided outside the case. By this direct connection method, the connection structure between the inverter device and the AC adapter can be simplified, and the cost can be reduced.

  FIG. 4 shows a third embodiment. As shown in FIG. 4, the air pump P3 is a small air pump that is attached to an aquarium for aquarium fish breeding and used to supply air into the aquarium water. A diaphragm type pump device that feeds out and an electromagnetic pump drive device that is operated by an AC power source and drives the pump device, and these parts are housed in a case 3. The air pump P3 also employs a specific power supply system, has an AC power plug 81 for connection to a commercial AC power supply, and converts the AC power into a necessary low voltage DC power supply. And an inverter device 9 that is mechanically and electrically connected to the AC adapter 8 and converts a DC power source into an AC power source and supplies the AC power source to the pump drive device. Here, since the pump device and the pump drive device are the same as those in the first embodiment, their duplicated explanation and illustration are omitted. Further, the case 3 is substantially the same as the first embodiment, but includes a different configuration in relation to the inverter device 7, and therefore, the first embodiment is shared with the portion common to the first embodiment. The same reference numerals are used and the description thereof is omitted, and the parts different from the first embodiment are added with the new reference numerals and the description is added. Since the AC adapter 8 and the inverter device 9 have slightly different configurations from those of the first embodiment, a description will be given with new reference numerals.

  In the case of this third embodiment, the inverter device 9 is an external part of the air pump P3, and is composed of an inverter circuit, a transformer, etc., and is accommodated in the inverter accommodating case 90, and the case 3 of the air pump P3 It is configured as a separate external type. In the case of this inverter device 9, an AC cable 92 with an AC power plug 91 for supplying AC power to the pump drive device is disposed in the inverter housing case 90, and DC power is connected to and supplied to this inverter device 9. A power jack J9 is provided. On the other hand, a power jack J3 for connecting and supplying AC power to the pump drive device is provided at an appropriate position of the case 3 of the air pump P3, and an AC power plug 91 of the inverter device 9 is connected to the power jack J3. The inverter device 9 and the pump drive device are connected. The AC adapter 8 is an external component widely used in OA devices and portable terminals. The AC adapter 8 is used to convert a 100V AC power source to a necessary low voltage, for example, a 12V DC power source, and an AC power source is connected to a commercial AC power source. AC cable 82 that supplies AC power of AC 100V from the power plug 81 and AC power plug 81 to the AC adapter main body 83, DC cable 84 that supplies DC power of necessary low voltage from the adapter main body 83, and a power jack of the inverter housing case 90 A DC power plug 85 connected to J9 is provided. The DC power plug 85 is connected to the power jack J9 of the inverter housing case 90, and the AC adapter 8 and the inverter device 9 are mechanically and electrically coupled. The AC adapter 8 may be configured such that the AC power plug 81 and the adapter main body 83 are integrated, and the AC cable 82 is omitted.

  When driving the air pump P3, the AC power plug 91 of the inverter device 9 is inserted into the power jack J3 of the case 3 (of the air pump P3), the inverter device 9 and the pump drive device 2 are connected, and the AC adapter 8 After inserting the DC power plug 85 into the power jack J9 of the inverter device 9 and connecting the AC adapter 8 and the inverter device 9, the AC power plug 81 of the AC adapter 8 is connected to a commercial AC power source (AC outlet) in a general household. To do. A commercial AC power supply 100V AC power supply is converted into a necessary low voltage DC power supply, for example, 12V by an AC adapter 8, and this DC current is converted into an AC power supply by an inverter 9 outside the case 3 to be pumped. Supplied to the drive device (electromagnetic drive mechanism). When an alternating current is supplied to the pump drive device, the magnet disposed opposite to the electromagnetic drive mechanism repeatedly attracts and repels due to the action (change in polarity) of the electromagnetic drive mechanism, and the arm is swung. The diaphragm is vibrated by the swinging motion of the arm, and air is sucked and discharged, and the air taken in from the air intake port passes through the air flow path inside the tank and is discharged from the nozzle 141 (air outlet 140). Discharged.

  Since the air pump P3 is driven by the necessary low voltage (for example, 12V) in this way, the air pump P3 is accidentally dropped into the water in the tank while the air pump P3 is driven. However, when taking out the air pump P3 from the water tank, there is no risk of electric shock to the human body, and the air pump P3 can be taken out safely.

  As described above, in the air pump P3, the electromagnetic pump drive device is operated by the AC power source, and the AC power source is switched from the commercial AC power source in the air pump drive format for driving the diaphragm pump device. The AC adapter 8 converts the direct current power source to a necessary low voltage, and the direct current is converted into an alternating current power source by the inverter device 9 and supplied to the pump drive device. Therefore, the air pump P3 is kept powered on. Even if it is dropped into the water in the tank, there is no effect on the human body when taking it out, and a high degree of safety can be achieved.

  In this embodiment, the inverter device is configured as an external type separate from the case, the inverter device is provided with a power jack, and a DC cable with a DC power plug for supplying DC power to the AC adapter is provided. Provided, a DC power plug is inserted into the power jack, the AC adapter and the inverter device are mechanically and electrically coupled, and an AC cable with an AC power plug for supplying AC power to the inverter device is provided. The case is provided with a power jack for connecting and supplying power to the pump driving device, and an AC power plug is inserted into the power jack so that the inverter device and the pump driving device are connected. The AC adapter cable may be directly connected to the inverter device. May be is directly coupled to the pump drive device in the casing. By this direct connection method, the connection structure between the inverter device and the AC adapter can be simplified, and the cost can be reduced.

  In each embodiment, the air pumps P1, P2, and P3 are illustrated as small air pumps that are provided in the aquarium for aquarium fish breeding to supply air into the water in the aquarium. However, it is necessary to supply air in general homes and offices such as using these air pumps to release fragrances such as essential oils and other fragrances used in aromatherapy. It can also be used for various purposes and applications.

The perspective view of the air pump in the 1st Embodiment of this invention (A) Plan view of the upper case of the air pump (B) Plan view of each functional part housed in the lower case of the air pump The perspective view of the air pump in the 2nd Embodiment of this invention The perspective view of the air pump in the 3rd Embodiment of this invention

Explanation of symbols

P1 Air pump 1 Pump device 11 Tank 12 Base 12F Mounting flange 13 Diaphragm joint part 13D Substantially D-shaped part 13R Substantially cylindrical part 131 Projection 132 Air intake 14 Columnar part 140 Air outlet 141 Nozzle 142 Locking part 15 Diaphragm 2 Pump drive device 21 Electromagnetic drive mechanism 22 Magnet 23 Arm 3 Case J3 Power jack 31 Lower case 311 Peripheral wall 312 Bottom wall 313 Drive system accommodation part 314 Operation system accommodation part 32 Upper case 321 Peripheral wall 322 Top wall 323 Boss hole 33 Leg 4 AC adapter 41 AC power plug 42 AC cable 43 Adapter body 44 DC cable 45 DC power plug 5 Inverter unit J5 Power jack P2 Air pump 6 AC adapter 61 AC power plug 62 AC cable Table 63 Adapter body 64 DC cable 65 DC power plug 7 Inverter device 70 Inverter housing case J7 Power jack P3 Air pump 8 AC adapter 81 AC power plug 82 AC cable 83 Adapter body 84 DC cable 85 DC power plug 9 Inverter device 90 Inverter Case J9 Power jack 91 AC power plug 92 AC cable

Claims (5)

An air pump for supplying air, comprising a diaphragm pump device that sucks and discharges air, an electromagnetic pump drive device that is operated by an AC power source and drives the pump device, and a case that accommodates these parts In
An AC adapter having an AC power plug for connecting to a commercial AC power source, and converting the AC power source to a necessary low voltage DC power source;
An inverter device that is mechanically and electrically connected to the AC adapter, converts the DC power source into an AC power source, and supplies the AC power source to the pump drive device;
An air pump characterized in that commercial AC power is converted into necessary low voltage AC power and supplied to the pump drive unit.   The air pump according to claim 1, wherein the inverter device is built in the case, and the AC adapter is connected to the inverter device built in the case via a cable.   The inverter device is integrally provided outside the case, the inverter device and the pump drive device are mechanically and electrically coupled, and the AC adapter is connected to the inverter device provided outside the case via a cable. The air pump according to claim 1.   The inverter device is configured as an external type separate from a case, the inverter device and an AC adapter are mechanically and electrically coupled, and the inverter device and the pump drive device are connected via a cable. The air pump described in 1. In the driving method of the air pump that operates the electromagnetic pump driving device by the AC power source and drives the diaphragm pump device,
Convert AC power from commercial AC power to DC power with the required low voltage using an AC adapter,
A method of driving an air pump, wherein the direct current is converted into an alternating current power supply by an inverter device and supplied to the pump drive device.

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