WO2006035938A1 - 振動磁界発生装置及び電磁石駆動回路、並びにそれらを用いるパーツフィーダー - Google Patents
振動磁界発生装置及び電磁石駆動回路、並びにそれらを用いるパーツフィーダー Download PDFInfo
- Publication number
- WO2006035938A1 WO2006035938A1 PCT/JP2005/018147 JP2005018147W WO2006035938A1 WO 2006035938 A1 WO2006035938 A1 WO 2006035938A1 JP 2005018147 W JP2005018147 W JP 2005018147W WO 2006035938 A1 WO2006035938 A1 WO 2006035938A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electromagnet
- magnetic field
- switching element
- parts
- circuit
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G27/00—Jigging conveyors
- B65G27/10—Applications of devices for generating or transmitting jigging movements
- B65G27/16—Applications of devices for generating or transmitting jigging movements of vibrators, i.e. devices for producing movements of high frequency and small amplitude
- B65G27/24—Electromagnetic devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
- H01F7/1811—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current demagnetising upon switching off, removing residual magnetism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
Definitions
- the present invention relates to an oscillating magnetic field generator, an electromagnet drive circuit, and a parts feeder that uses them. More specifically, the present invention relates to an oscillating magnetic field generating device that applies vibration to a resonant parts feeder, an electromagnet drive circuit that is a part of the apparatus, and a resonant parts feeder that supplies components in accordance with the vibration period.
- the electromagnet coil has a relatively large inductance L, a relatively small value, and a resistance value r! /.
- the rise of the drive current when turning on and off such a coil switch both the coil current is divided into the excitation current at the time of excitation and the energy emission current at the time of energy release (demagnetization) accumulated in the electromagnet
- the time constant that determines the falling speed is as large as LZr.
- FIG. 8 The outline of the circuit structure of this inductive load control apparatus is shown in FIG. In FIG. 8, a circuit in which an inductive load 52, a detection coil 53 of a current detection sensor, and an impedance element 54 are connected in series is connected to a DC power source 51, and further connected to a ground 57 through a switching element SW1. A diode 55 (connected in the reverse direction) and a capacitor 56 are connected in parallel to the series connection circuit, and a switching element SW2 is connected in parallel to the impedance element 54. is doing.
- the switching element SW2 When the switching element SWl is on / off controlled by a PWM (pulse width modulation) signal, the switching element SW2 is turned on.
- the switching element SW1 When the switching element SW1 is turned on, the inductive load 52, When current II flows to inductive load 52 through detection coil 53 of switching element SW2, switching element SW1, switching element SWl, and ground 57, and switching element SW1 is turned off, the stored energy force is detected by the detection coil of current detection sensor. 53, flows through the switching element SW2 and the diode 55 as current 12, and returns to the DC power supply 51.
- the capacitor 56 is for absorbing a surge generated when a current flows through the diode 55.
- the switching element SW2 When the PWM signal output is turned off and the switching element SW1 is turned off, the switching element SW2 is also turned off, and the stored energy is supplied to the DC power source through the detection coil 53, impedance element 54, and diode 55 of the current detection sensor.
- the detection coil 53 of the current detection sensor controls the PWM signal output by detecting the current flowing through the inductive load 52 and comparing it with a specified current value.
- Patent Document 1 Japanese Patent Application Laid-Open No. 7-143793 (paragraphs [0036] to [0045], FIGS. 1 to 4 etc.) Disclosure of the Invention
- the resonant parts feeder which has been developed by the inventors, oscillates the parts transfer path that moves the parts, aligns the parts, and continuously and automatically moves the parts one by one in response to the vibration.
- the advantage is that a large amplitude can be obtained with a small amount of power by matching the natural frequency of the vibration mechanism of the parts feeder with the frequency of the drive circuit, and parts can be supplied efficiently.
- an electromagnet is used as a vibration element for applying vibration to the resonance type part feeder.
- it is effective to suppress the heat generation of the electromagnet.
- the one with small resistance r and relatively large inductance L is used.
- the present invention improves the oscillating magnetic field generator and the inductive load control device adopting the simple drive circuit, reduces the time constant of the electromagnetic energy release circuit, and generates heat in the electromagnet.
- the purpose is to stabilize the oscillating magnetic field. It is another object of the present invention to apply a oscillating magnetic field generator employing such a simple drive circuit to a parts feeder so that stable automatic component supply can be performed through stable vibration.
- an oscillating magnetic field generator is an oscillating magnetic field generator including an electromagnet 4 and an electromagnet drive circuit 5 for driving the electromagnet 4 as shown in FIG. 3, for example.
- Electromagnet 4 has inductance L and resistance value r, and electromagnet drive circuit 5 controls terminals A and D for connection to DC power source 11 that supplies excitation current to magnet 4 and excitation current on / off control.
- the electromagnetic energy emission circuit is a circuit in which a diode 14 and a resistor 14 having a resistance value R, which is larger than that of the diode!, Are connected in series, and connected in parallel to the electromagnet 4 to switch the pulse signal. By periodically supplying the element 12, an oscillating magnetic field having a pulse signal period is generated in the electromagnet 4.
- the electromagnet drive circuit 5 may or may not be connected to the DC power supply during distribution in a force field used by being connected to the DC power supply 11.
- the electromagnet 4 is connected to the terminal A and the switching element 12 is connected to the electromagnet 4 as shown in FIG.
- the terminal B may be connected between the terminal B and the terminal D on the opposite side of the terminal A, or the electromagnet 4 may be connected to the terminal D, and the switching element 12 may be connected to the terminal on the opposite side of the terminal D of the electromagnet 4. It may be connected between terminal A.
- the diode 13 is typically used in the reverse direction, that is, with the force sword connected to the terminal A side and the anode connected to the terminal B side.
- the time constant is determined by the inductance L and the resistance value r of the electromagnet 4, and is relatively large as LZr because the inductance L is large.
- a large resistance value R is inserted into the electromagnetic energy emission circuit to reduce the time constant and to suppress heat generation, thereby making it possible to stabilize the oscillating magnetic field. It was confirmed that the effect was obtained.
- the switching element 12 is constituted by an insulated gate element, and the nors generating means 10 is supplied to the switching element 12 A first timing generator 18 for determining the period of the switching pulse to be switched, and a second timing generator 19 for determining the width of the switching norse on the high level side.
- the pulse period and the ratio of the pulse width on the high level (H level) side to the pulse width on the low level (L level) side can be adjusted independently, so that a desired dew at a desired frequency can be obtained. It becomes easy to generate the switching pulse of the teat rate.
- the electromagnet drive circuit is an electromagnet drive circuit 5 for driving an electromagnet 4 having an inductance L and a resistance value r as shown in FIG. 3, for example, and supplies an excitation current to the electromagnet 4 Terminals A and D for connection to the DC power source 11 to be switched, a switching element 12 for controlling the excitation current on / off, and an electromagnetic energy emission circuit for releasing the energy stored in the electromagnet 4 when the switching element 12 is off.
- pulse generation means 10 for generating a pulse signal to be supplied to the switching element 12, and the electromagnetic energy emission circuit has a diode 13 and a resistance value!
- the parts feeder according to the present invention includes, for example, as shown in FIG. 1, an oscillating magnetic field generator 120 according to the present invention, a component take-in unit 101 that takes in a large number of components 6, and a component take-in Part 10 Part transfer path 1 for moving the parts 6 taken from 1 while being aligned, part supply part 102 for supplying parts 6 transferred along the part transfer path 1 one by one, and part transfer path 1 and a main body 110 having a vibration table 2 that receives a vibration magnetic field from the vibration magnetic field generator 120 and applies vibrations to the parts transfer path 1, and parts are transferred by the vibration magnetic field generated by the vibration magnetic field generator 120.
- part 6 is moved along the part transfer path 1 while being aligned.
- a power supply 130 for supplying power to the main body 110 and the oscillating magnetic field generator 120 is provided. .
- This configuration is convenient because it can be managed and transported integrally with the power source.
- the frequency of the oscillating magnetic field can be adjusted to match the natural frequency of the own vibration mechanism.
- stable resonance vibration can be maintained by adjusting the resonance vibration to match the natural frequency of the vibration mechanism of the parts feeder 100 and driving the electromagnet 4 so that the supply process of the parts feeder can be efficiently performed.
- Can be Adjustment is possible, for example, with the first timing generator 18 (see FIG. 5).
- the automatic immunoassay apparatus includes the parts feeder according to the present invention.
- An automatic immunoassay device typically has a solid phase reagent, a labeling reagent, and a sample that specifically recognize and bind to a measurement target in a reaction vessel such as a cuvette based on an enzyme immunoassay. It is a device that mixes and detects the measurement object in the specimen.
- the present invention in a vibrating magnetic field generator that employs a simple drive circuit that does not employ resonance securing means, the time constant of the electromagnetic energy release circuit is reduced, and heat generation in the electromagnet is achieved. And the oscillating magnetic field can be stabilized.
- the oscillating magnetic field generator according to the present invention to a parts feeder, it is possible to provide a parts feeder capable of supplying stable automatic parts through stable vibration.
- FIG. 1 is a diagram illustrating an outline of a configuration of a resonance type feeder.
- FIG. 2 is a view for explaining a vibration mechanism of the resonance type part feeder.
- FIG. 3 is a diagram showing a configuration example of an oscillating magnetic field generator according to an embodiment of the present invention.
- FIG. 4 is a diagram showing an example of current characteristics in the oscillating magnetic field generator according to the embodiment of the present invention.
- FIG. 5 is a diagram showing a configuration example of an electromagnet drive circuit according to an embodiment of the present invention.
- FIG. 6 is a diagram showing a configuration example of an oscillating magnetic field generator of a comparative example.
- FIG. 7 is a diagram showing an example of current characteristics in the oscillating magnetic field generator of the comparative example.
- FIG. 8 is a diagram showing an outline of a circuit configuration of a conventional inductive load control device.
- Pulse generation means 11 DC power supply
- FIG. 6 shows a configuration example of the oscillating magnetic field generator of the comparative example.
- a comparative example is an example in which an electromagnet is used as a vibration element of a resonance type part feeder, and a simple and simple drive circuit is employed with resonance ensuring means taken.
- the coil of the electromagnet 4 has a relatively large inductance L and a relatively small resistance value r.
- One terminal A of the electromagnet 4 is connected to the positive electrode of the DC power source 11, and the other terminal B of the electromagnet 4 is connected to the switching element 12 such as a power MOSFET (insulated gate field effect transistor). Is connected to the negative electrode D of the DC power supply 11.
- MOSFET insulated gate field effect transistor
- the diode 13 In parallel with the electromagnet 4 between the terminals A and B, the diode 13 is connected in the reverse direction as an electromagnetic energy emission circuit, that is, with the cathode on the terminal A side and the anode on the terminal B side. .
- the pulse generating means 10 is connected to the gate of the switching element 12.
- an H level pulse signal is supplied from the pulse generating means 10 to the gate of the switching element 12, the switching element 12 is turned on, and the positive electrode of the DC power source 11 ⁇ the electromagnet 4 ⁇ the switching element 12 ⁇ Current flows through the route of negative electrode D of DC power supply 11. A reverse voltage is applied to diode 13, so no current flows. As a result, the electromagnet 4 is excited to attract and attract the armature (movable piece) 2A attached to the vibration table 2 (see FIG. 2).
- an L level pulse signal is supplied from the pulse generating means 10 to the gate of the switching element 12, the switching element 12 is turned off, and the DC power source 11 is cut off from the electromagnet 4.
- the energy stored in the electromagnet 4 is The current passes through the electromagnetic energy release circuit at the terminal A of the child B ⁇ the diode 13 ⁇ the electromagnet 4 and is returned to the electromagnet 4. That is, an electromagnetic energy discharge loop of electromagnet 4 ⁇ diode 13 ⁇ electromagnet 4 is formed. In the electromagnet 4, heat is generated and consumed as Joule heat at the internal resistance r.
- FIG. 7 shows an example of current characteristics in the oscillating magnetic field generator of the comparative example.
- FIG. 7 (a) shows the pulse signal supplied to the gate of the switching element 12
- FIG. 7 (b) shows the current flowing through the electromagnet 4 (repetition of excitation current and energy release current).
- FIG. 1 illustrates an outline of the configuration of a resonance type part feeder.
- Reference numeral 100 denotes a resonance type part feeder, which includes a main body 110, an oscillating magnetic field generator 120, and a power supply 130.
- the main body 1 10 includes a part taking-in part 101 that takes in a large number of parts 6 and a part taking-in part 101.
- a parts transfer path 1 for moving the parts 6 while being aligned, and a parts supply unit 102 for supplying the parts 6 transferred along the parts transfer path 1 one by one.
- it has a parts transfer path 1 and a vibration table 2 that receives a vibration magnetic field from the vibration magnetic field generator 120 and applies vibration to the parts transfer path 1.
- the oscillating magnetic field generator 120 has an electromagnet 4 that generates an oscillating magnetic field and an electromagnet drive circuit 5 that drives the electromagnet 4.
- the power supply 130 supplies power to the main body 110 and the oscillating magnetic field generator 120 (the electromagnet 4 and the electromagnet drive circuit 5).
- FIG. 2 is a diagram for explaining the vibration mechanism of the resonance type part feeder.
- Fig. 2 (a) is a diagram showing the concept of the vibration mechanism
- Fig. 2 (b) is an enlarged perspective view conceptually showing the parts transfer path.
- the parts transfer path 1 is fixedly mounted on the stage of the vibration table 2, and an iron plate as an armature 2A is attached in the vicinity of the attracting portion of the electromagnet 4 arranged on the lower surface of the vibration table 2.
- a leaf spring is used for the support 3 of the vibration table 2 and is urged so as to separate the vibration table 2 from the electromagnet. Armor 2A and support 3 are included in shaking table 2.
- the electromagnet 4 When the driving current flowing through the coil of the electromagnet 4 (also called the coil current, distinguished from the excitation current in the on state and the energy release current in the off state) is turned on and off by the magnet drive circuit 5, the electromagnet 4 When excited, the leaf spring 3 is held up and the armature 2A is attracted together with the stage. When it is off, the electromagnet 4 is demagnetized, and the vibration table 2 returns to its original state by the force of the leaf spring. By repeatedly turning on and off, the shaking table 2 and the parts transfer path 1 vibrate.
- the coil current also called the coil current, distinguished from the excitation current in the on state and the energy release current in the off state
- a parts storage box 7 as a parts receiving portion 101 is provided above the parts transfer path 1, and a large number of parts 6 (usually one type thereof) such as chips, cuvettes, and cartridges are stored therein.
- parts 6 usually one type thereof
- parts transfer path 1 When the bottom of the parts storage box 7 is opened, a large number of parts 6 are dropped and supplied from the parts storage box 7 to the parts transfer path 1 and rolls on the slope 8 of the parts transfer path 1 to form grooves 9 provided in the parts transfer path 1. It is configured to fall and align.
- the part 6 has a cylindrical shape or a conical shape that is symmetrical with respect to the central axis, and its main body part is formed in the groove 9 and only the head part protrudes on the groove 9, and the width of the groove 9 is the part 6 Are formed narrower than the head part which is wider than the main part of the part so that they are aligned in a row along the groove 9.
- the electromagnet 4 is turned on and off, an oscillating magnetic field is generated, and the vibration is transmitted to the parts transfer path 1 via the vibration table 2.
- the parts 6 that have fallen on the slope 8 are powered and dropped into the grooves 9 and aligned in a row along the grooves 9, and the parts 6 aligned in the grooves 9 are transferred one by one according to the vibration.
- the parts 6 that have moved forward in the parts transfer path 1 reach the parts supply unit 102 (not shown), and are picked up one by one in synchronization with the operation of a predetermined processing apparatus to which the parts are supplied. Supplied to the device.
- Examples of the predetermined processing apparatus include an automatic immunoassay apparatus.
- an automatic immunoassay apparatus When such a part feeder is incorporated into an automatic immunoassay device, a reagent dispensing unit or the like is applicable. Since these parts are automatically supplied from the parts feeder, automatic processing becomes possible.
- the automatic immunoassay device typically includes a solid phase reagent, a labeling reagent, and a specimen that specifically recognizes and binds the measurement target in a reaction vessel such as a cuvette based on an enzyme immunoassay. This is a device that mixes and detects the measurement object in the sample.
- FIG. 3 shows a configuration example of the main part of the oscillating magnetic field generator according to the embodiment of the present invention.
- the coil of the electromagnet 4 has a relatively large inductance L and a relatively small resistance value r.
- One terminal A of the electromagnet 4 is connected to the positive electrode of the DC power supply 11, the other terminal B of the electromagnet 4 is connected to the drain of the power MOSFET as the switching element 12, and the source of the power MOSFET 12 is the negative electrode D of the DC power supply 11. It is connected to the.
- a diode 13 and a resistor 14 having a resistance value R larger than the resistance value r are connected in series as an electromagnetic energy emission circuit.
- the pulse generating means 10 is connected to the gate of the switching element 12. Since the resistance value Rd of the diode 13 is very (sufficiently) smaller than the resistance value (R + r), it can be ignored when performing various energy calculations.
- Terminals A, B, and D are also terminals of the electromagnet drive circuit 5.
- the electromagnet drive circuit 5 is connected to the electromagnet 4 and the DC power source 11 at the terminal A, and connected to the electromagnet 4 at the terminal B.
- D is connected to the negative side of the DC power supply 11. It differs from the comparative example in Fig. 6 only in that a resistor 14 is added to the electromagnetic energy emission circuit.
- a resistor 14 is connected in series with a diode 13 instead of the impedance connected between the inductive load (equivalent to an electromagnet) and the switching element SW1.
- An electromagnetic energy release circuit is configured, and the switching element SW2 is omitted.
- the surge current absorption capacitor is also omitted.
- an H level pulse signal is supplied from the pulse generating means 10 to the gate of the switching element 12, and the switching element 12 is turned on.
- the positive electrode of the DC power source 11 ⁇ the electromagnet 4 ⁇ the switching element 12 ⁇ Current flows through the route of negative electrode D of DC power supply 11.
- a reverse voltage is applied to diode 13, so no current flows.
- the electromagnet 4 is excited to attract and attract the armature 2A of the shaking table 2 magnetically.
- an L level pulse signal is supplied from the pulse generating means 10 to the gate of the switching element 12, the switching element 12 is turned off, and the DC power supply 11 is disconnected from the electromagnet 4.
- the energy stored in the electromagnet 4 is returned to the electromagnet 4 as a current passing through the electromagnetic energy release circuit of the electromagnet 4 terminal B ⁇ diode 13 ⁇ resistor 14 ⁇ electromagnet 4 terminal A. That is, an energy release loop of electromagnet 4 ⁇ diode 13 ⁇ resistor 14 ⁇ electromagnet 4 is formed.
- FIG. 4 shows an example of current characteristics in the oscillating magnetic field generator of FIG. Fig. 4 (a) shows the pulse signal supplied to the gate of the switching element 12, and Fig. 4 (b) shows the current flowing through the coil of the electromagnet 4 (repetition of excitation current and energy release current).
- Joule heat RZ of (LI 2/2) (r + R) is consumed by the resistor 14, the amount that is consumed in the electromagnet 4 is reduced and rZ (r + R), an electromagnet The amount of heat consumed by the heat generated in 4 can be greatly reduced, and the temperature rise of the electromagnet 4 can be suppressed.
- the resistance value Rd of the diode 13 is sufficiently smaller than the resistance value (R + r), and therefore can be ignored when calculating the Joule heat. Thereby, the oscillating magnetic field of the oscillating magnetic field generator 120 after the power is turned on and the oscillating operation of the parf feeder 100 can be greatly stabilized.
- the resistance value R of the resistor 14 The greater the resistance value R of the resistor 14, the more effective the resistance.
- the reverse voltage obtained by multiplying the resistance value R by the maximum coil current value Imax is generated at both ends of the resistor 14, so that the withstand voltage of the switching element 12 is reduced.
- the resistance value R is preferably 2 to 10 times the resistance value r.
- the lower limit of the resistance value is a value that does not affect the stability of the vibration magnetic field and vibration of the parts feeder 100 because the amount of decrease of the time constant is small
- the upper limit is a value that does not affect the reverse voltage generated in the resistor 14.
- the maximum current value Imax of the resistor 14 is the same as the maximum current of the coil
- the maximum power consumption is a value obtained by multiplying RZ (r + R) of the power stored in the coil when the electromagnet is on by the frequency.
- FIG. 5 shows a configuration example of an electromagnet drive circuit according to the embodiment of the present invention.
- the same parts as those in FIG. The configuration is the same as that shown in Fig. 3, except that it is connected to the DC power supply 11 via the fuse 15 for protecting the electromagnetic drive circuit, and the pulse generating means 10 is connected to the switching element 12 via the resistor R4.
- the connection is different.
- the supply voltage of the DC power supply 11 is set to 24 V, for example, so that a current that can provide a sufficiently large vibration (or oscillating magnetic field) can be supplied.
- [0051] 16 is a series regulator, which reduces the voltage of 24V to 5V.
- Series Reggie Yuichi The capacitor CI connected to the input side of the capacitor 16 and the capacitor C2 connected to the output side of the series regulator 16 are for smoothing the voltage.
- the output terminal of the series regulator 16 is connected to the DC bus 17 and supplies a voltage of 5V to the pulse generating means 10 via the DC bus 17.
- the noise generation means 10 has a first timing generator 18 and a second timing generator 19, and the first timing generator 18 and the second timing generator 19 each have a DC bus 17 power of 5V. Is generated and a pulse signal for driving the electromagnet supplied to the switching element 12 is generated in cooperation. By periodically supplying a pulse signal to the switching element 12, an oscillating magnetic field having a pulse signal period T is generated in the electromagnet 4.
- the variable resistor R1 is connected between the DC bus 17 and the terminal N1 of the first timing generator 18, and the resistor R3 is connected between the terminal N1 and the terminal N2. Connected, capacitor C3 is connected between terminal N2 and ground terminal D.
- the first timing generator 18 is, for example, a simple transmission circuit that uses an unstable operation of a timer circuit, and the frequency (frequency) of the electromagnetic on Z-off, that is, the period T (H of the gate signal of the switching element 12 Level time width + L level time width). This time is set by the combination of resistor Rl, resistor R3, and capacitor C3.
- these resistance values and capacitances are assumed to be Rl, R3, and C3.
- the total period T is expressed by the following equation.
- the frequency f is the reciprocal of the period.
- the frequency f 12Hz ⁇ 94Hz is obtained, L level time width Tl becomes 0.14mS independent of resistance value Rl setting, H level time width Th changes from 10mS to 83mS depending on resistance value Rl setting Possible It becomes. This is a reasonable value because we aimed at 10 ⁇ : LOOHz at the design stage.
- the frequency range can be changed by changing the range of resistance value R1, resistance value R3, and capacitance C3.
- the frequency f of the circuit coincide with the natural frequency of the parts feeder because a resonance state is obtained and energy transfer is performed efficiently.
- the natural frequency of the parts feeder is set to 60Hz as a design value, for example.
- each product has subtle variations in its natural frequency. Therefore, fine adjustment is performed to match the natural frequency of each parts feeder with the circuit frequency at the time of shipment or installation.
- the natural frequency of the parfaiter may be changed due to specification changes. Therefore, adjustment is possible in the range of about 10 to: LOOHz so that the frequency of the circuit can match the natural frequency of the parts feeder.
- the output terminal N3 of the first timing generator 18 is connected to the input terminal N6 of the second timing generator 19.
- a variable resistor R2 is connected between the DC bus 17 and the terminal N4, and a capacitor C4 is connected between the terminal N4 and the ground D.
- the timing generator 19 is a circuit called a one-shot multivibrator that uses the monostable operation of a timer circuit, for example, and sets the ratio between the H level time width Th and the L level time width Th. This ratio
- the rate is determined by resistor R2 and capacitor C4.
- resistor R2 and capacitor C4 are R2 and C4.
- the frequency f is unchanged and maintains the frequency output from the first timing generator 18.
- the output signal is output from the output terminal N7 and input to the gate of the switching element 12 via the resistor R4.
- the timing generator 19 holds the output at the H level for a certain period of time triggered by the falling edge of the input signal.
- the time width Th of the H level is expressed by the following equation.
- Th 1.1 XR2 X C4- "(Formula 6)
- the H level time width Th will be 0.75ms to 8.2ms. This is about l-8ms at the design stage
- the target was degree. For example, it can be set around 4ms.
- the L level time width T1 depends on the resistance value R1 and the resistance value R2, and is expressed by the following equation.
- Tl (lZf— Th)... (Formula 7)
- N5 is an input terminal for a reset signal. When maintained at the L level, the output is fixed at the L level, the electromagnet 4 is off, and no vibration is applied to the shaking table 2.
- a control signal of 24V is applied between terminal N8 and terminal N9, current flows in the order of resistor R5, light emitting diode (LED) D2 for monitoring, and light emitting diode D3 of photocoupler 20, and light emitting diode D2 lights up To do.
- a current flows through the light emitting diode D3 the phototransistor T2 is turned on, the input terminal N5 becomes H level, and the second timing generator 19 is activated. In this state, the electromagnet 4 is driven on and off to apply vibration to the parts feeder.
- the resistor R4 is for protecting the circuit so that an excessive current does not flow due to the gate input capacitance of the switching element 12.
- a power MOSFET is used as the switching element 12
- an IGBT insulated gate bipolar transistor
- JFET junction transistor
- Bipolar transistors may be used, but it is necessary to use a large number of control ICs and transistors, and the amount of heat generation is increased, so it is preferable to use an insulated gate type element.
- a DC-DC converter may be used in place of the force series regulator 16 shown in the example of using the series regulator 16 to convert 24 V voltage to 5 V voltage.
- a DC-DC converter can be a noise source, it is preferable to use a series regulator.
- an electromagnet drive (24V) power supply and a timing generation circuit (5V) power supply may be provided separately. good.
- the example in which one resistor 14 is used to insert the resistance value R has been described.
- a plurality of resistors are connected in series and in parallel.
- two resistors may be arranged separately above and below the diode 13.
- a switch that turns on when the switching element 12 is turned off and turns off when the switching element 12 is turned on may be provided.
- the configuration of the pulse generating means for controlling the switching element 12 can be variously changed.
- the present invention is used in an oscillating magnetic field generator for applying vibration to a resonance type part feeder.
- a resonance-type parts feeder incorporating an oscillating magnetic field generator is used for an automatic immunity measuring device.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigging Conveyors (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006537836A JP4682984B2 (ja) | 2004-09-30 | 2005-09-30 | 振動磁界発生装置及び電磁石駆動回路、並びにそれらを用いるパーツフィーダー |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-287683 | 2004-09-30 | ||
JP2004287683 | 2004-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006035938A1 true WO2006035938A1 (ja) | 2006-04-06 |
WO2006035938A8 WO2006035938A8 (ja) | 2007-06-21 |
Family
ID=36119080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018147 WO2006035938A1 (ja) | 2004-09-30 | 2005-09-30 | 振動磁界発生装置及び電磁石駆動回路、並びにそれらを用いるパーツフィーダー |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4682984B2 (ja) |
WO (1) | WO2006035938A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008020380A1 (en) | 2006-08-15 | 2008-02-21 | Koninklijke Philips Electronics N.V. | Magnetic field generation device |
JP2009164290A (ja) * | 2007-12-28 | 2009-07-23 | Alpha Corp | アクチュエータ駆動制御装置 |
JP2019053006A (ja) * | 2017-09-19 | 2019-04-04 | 日本電子株式会社 | 容器供給ユニット及び自動分析装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS612607A (ja) * | 1984-03-26 | 1986-01-08 | エフエムシー コーポレーション | 振動コンベヤ |
JPH0457303A (ja) * | 1990-06-27 | 1992-02-25 | Komatsu Ltd | インダクタンス負荷駆動回路 |
JPH06132116A (ja) * | 1992-10-15 | 1994-05-13 | Matsushita Electric Works Ltd | 電磁石のコイル駆動装置 |
JPH08284626A (ja) * | 1995-02-15 | 1996-10-29 | Toyota Motor Corp | 内燃機関の弁駆動装置 |
JPH1165678A (ja) * | 1997-08-08 | 1999-03-09 | Tietech Co Ltd | 振動機の制御装置及び振動機の制御方法 |
JPH11180538A (ja) * | 1997-11-17 | 1999-07-06 | Adept Technol Inc | 衝撃式パーツフィーダ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5486762A (en) * | 1977-12-23 | 1979-07-10 | Ricoh Kk | Electromagnet drive circuit |
JPS56120047A (en) * | 1980-02-27 | 1981-09-21 | Nippon Electric Co | Induction load drive circuit |
JPS5947714A (ja) * | 1982-09-10 | 1984-03-17 | Matsushita Electric Ind Co Ltd | ミシン駆動装置等の電磁ソレノイド駆動回路 |
JPH0832161B2 (ja) * | 1987-03-31 | 1996-03-27 | 株式会社東芝 | 電磁石電源装置 |
JPH0855720A (ja) * | 1994-08-10 | 1996-02-27 | Nissin Electric Co Ltd | 直流電気操作式開閉器制御装置 |
JP3341591B2 (ja) * | 1996-08-08 | 2002-11-05 | 富士レビオ株式会社 | カートリッジ供給装置 |
JP3058869B1 (ja) * | 1999-01-29 | 2000-07-04 | 株式会社タクミナ | ソレノイド駆動回路 |
-
2005
- 2005-09-30 JP JP2006537836A patent/JP4682984B2/ja not_active Expired - Fee Related
- 2005-09-30 WO PCT/JP2005/018147 patent/WO2006035938A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS612607A (ja) * | 1984-03-26 | 1986-01-08 | エフエムシー コーポレーション | 振動コンベヤ |
JPH0457303A (ja) * | 1990-06-27 | 1992-02-25 | Komatsu Ltd | インダクタンス負荷駆動回路 |
JPH06132116A (ja) * | 1992-10-15 | 1994-05-13 | Matsushita Electric Works Ltd | 電磁石のコイル駆動装置 |
JPH08284626A (ja) * | 1995-02-15 | 1996-10-29 | Toyota Motor Corp | 内燃機関の弁駆動装置 |
JPH1165678A (ja) * | 1997-08-08 | 1999-03-09 | Tietech Co Ltd | 振動機の制御装置及び振動機の制御方法 |
JPH11180538A (ja) * | 1997-11-17 | 1999-07-06 | Adept Technol Inc | 衝撃式パーツフィーダ |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008020380A1 (en) | 2006-08-15 | 2008-02-21 | Koninklijke Philips Electronics N.V. | Magnetic field generation device |
JP2010501114A (ja) * | 2006-08-15 | 2010-01-14 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 磁界生成装置 |
US8102636B2 (en) | 2006-08-15 | 2012-01-24 | Koninklijke Philips Electronics N.V. | Magnetic field generation device |
JP2009164290A (ja) * | 2007-12-28 | 2009-07-23 | Alpha Corp | アクチュエータ駆動制御装置 |
JP2019053006A (ja) * | 2017-09-19 | 2019-04-04 | 日本電子株式会社 | 容器供給ユニット及び自動分析装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2006035938A1 (ja) | 2008-05-15 |
JP4682984B2 (ja) | 2011-05-11 |
WO2006035938A8 (ja) | 2007-06-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6570343B1 (en) | Device for turning on light and illumination apparatus | |
CN109937612B (zh) | 用于操作一个或更多个照明用具的反激变换器、相关联的方法及操作装置 | |
US8878449B2 (en) | LED drive circuit and LED illumination unit | |
JP4787350B2 (ja) | 自励式スイッチング電源回路 | |
WO2006035938A1 (ja) | 振動磁界発生装置及び電磁石駆動回路、並びにそれらを用いるパーツフィーダー | |
JP4116092B2 (ja) | 蛍光ランプの調光可能な動作のための回路装置 | |
JPS6321580A (ja) | 蓄電池の放電状態表示回路 | |
EP0726394B1 (en) | A power supply for vibrating compressors | |
JP2002152997A (ja) | 高周波形リモート電源供給装置 | |
US4835655A (en) | Power recovery circuit | |
JP4214649B2 (ja) | 電源装置およびパルス発生装置 | |
JP2005006477A (ja) | 自励式スイッチング電源回路 | |
JP3876223B2 (ja) | スイッチング電源回路 | |
KR940009873B1 (ko) | 인버어터 | |
US20180090997A1 (en) | Noncontact power supply device and control device therefor | |
JP2010220301A (ja) | 給電装置 | |
WO2010024977A1 (en) | Driving circuit for high-powered light emitting diode | |
JP3831367B2 (ja) | 圧電振動子駆動回路 | |
JP2003303536A (ja) | リレー駆動装置及びリレー装置 | |
JP2005184896A (ja) | 圧電トランスの駆動回路 | |
JP2007035528A (ja) | 誘導加熱装置 | |
JPH1131017A (ja) | 整流電源を用いた出力回路 | |
JPH0475294A (ja) | El駆動回路 | |
KR890008831Y1 (ko) | 마이콤 전원공급장치 | |
JPH04148711A (ja) | 振動機の駆動制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006537836 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |