WO2013136560A1 - 電磁クラッチ - Google Patents
電磁クラッチ Download PDFInfo
- Publication number
- WO2013136560A1 WO2013136560A1 PCT/JP2012/073854 JP2012073854W WO2013136560A1 WO 2013136560 A1 WO2013136560 A1 WO 2013136560A1 JP 2012073854 W JP2012073854 W JP 2012073854W WO 2013136560 A1 WO2013136560 A1 WO 2013136560A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electromagnetic
- coil
- clutch
- circuit
- electromagnetic coil
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
- F16D27/04—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/24—Friction clutches with axially-movable clutching members with conical friction surfaces cone clutches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
- F16D27/108—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
- F16D27/112—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D2027/001—Means for electric connection of the coils of the electromagnetic clutches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D2027/002—Electric or electronic circuits relating to actuation of electromagnetic clutches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D2027/005—Details relating to the internal construction of coils or to clutches having more than one coil in the same housing
Definitions
- the present invention relates to an electromagnetic clutch that attracts an armature to a rotor by electromagnetic force and transmits the power of the rotor.
- the rotor friction plate is provided with three rows of slots in the radial direction, and the armature facing the friction plate is provided with two rows of slots in the radial direction so that the number of magnetic poles between the rotor and the armature is reduced.
- a six-pole electromagnetic clutch is known (see, for example, Patent Document 1).
- the number of magnetic poles is the number of magnetic pole portions composed of a rotor (friction plate) and an armature, and corresponds to the number of locations where the magnetic flux crosses the air gap between the rotor and the armature.
- the electromagnetic clutch can generate higher transmission torque than when it has 4 poles.
- the path of magnetic flux across the air gap between the rotor and armature becomes longer. For this reason, the electromagnetic attractive force at the start of energization of the electromagnetic coil, that is, the operating attractive force for turning the electromagnetic clutch from the OFF state to the ON state is small, which is accompanied by deterioration of the operability of the electromagnetic clutch.
- the present invention provides an electromagnetic clutch capable of improving the operability of the electromagnetic clutch while suppressing power consumption.
- an electromagnetic clutch (100) includes a friction plate (13), a rotor (1) that rotates about an axis (L0), and a clutch-on command and a clutch-off command.
- a stator (2) having an electromagnetic coil (3) that is energized and de-energized, and an armature (4) that is attracted to the friction plate (13) by electromagnetic attraction generated by energizing the electromagnetic coil (3) Is provided.
- the electromagnetic coil (3) includes a plurality of electromagnetic coils (31, 32), and the electromagnetic clutch (100) receives a current in parallel with the plurality of electromagnetic coils (31, 32) when a clutch-on command is output.
- an energization circuit to the electromagnetic coil (3) is connected from the parallel circuit so that current flows in series to the plurality of electromagnetic coils (31, 32).
- a circuit switching unit (30, 35; 70) for switching to a series circuit is further provided.
- FIG. 1 It is a side view showing the whole electromagnetic clutch composition concerning a 1st embodiment of the present invention. It is a principal part enlarged view of FIG. 1, and is a figure which shows an electromagnetic clutch OFF state. It is a principal part enlarged view of FIG. 1, and is a figure which shows an electromagnetic clutch ON state. It is a figure which shows the electricity supply circuit to the electromagnetic coil of FIG. It is a figure which shows one operation
- stator which shows the principal part structure of the electromagnetic clutch which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the internal structure of the cover of FIG. It is arrow XI figure of FIG. It is an arrow XII figure of Drawing 10, and is a figure showing an electromagnetic clutch off state. It is a figure which shows the electromagnetic clutch ON state corresponding to FIG.
- An electromagnetic clutch is a dry single-plate clutch that transmits and cuts off power from a rotational drive source by electromagnetic force generated by energization of an electromagnetic coil.
- an electromagnetic clutch that transmits power from an engine to a compressor (refrigerant compressor) of an automotive air conditioner and interrupts power transmission to the compressor will be described.
- FIG. 1 is a side view (partially sectional view) showing an overall configuration of an electromagnetic clutch 100 according to the present embodiment
- FIGS. 2 and 3 are enlarged views of main parts of FIG. 1 and 2 show an off state of the electromagnetic clutch 100 that interrupts power transmission from the engine
- FIG. 3 shows an on state of the electromagnetic clutch 100 that transmits power from the engine to the compressor.
- the electromagnetic clutch 100 is rotationally driven by a vehicle engine, which is a drive source (not shown), and rotates around an axis L0, a stator 2 having an electromagnetic coil 3, and an electromagnetic coil 3.
- An armature 4 that is attracted to the end surface (friction surface 1a) of the friction plate 13 of the rotor 1 by an electromagnetic force generated by energization, and a hub 5 that transmits rotational power to a compressor (not shown) are provided.
- the direction along the axis L0 is the front-rear direction
- the direction extending radially perpendicular to the axis L0 is the radial direction
- the direction along the circumferential surface of the circle centering on the axis L0 is the circumferential direction.
- the rotor 1 is made of a magnetic material such as iron. As shown in FIGS. 2 and 3, the rotor 1 includes a cylindrical inner cylinder portion 11 centering on the axis L ⁇ b> 0, an outer cylinder portion 12 having a larger diameter than the inner cylinder portion 11, and a radially extending inner portion. It has the friction plate 13 which connects the front-end parts of the cylinder part 11 and the outer cylinder part 12.
- the friction plate 13 has slot-shaped annular portions 131 to 133 made of a nonmagnetic material at three locations in the radial direction.
- a plurality of annular portions 131 to 133 are arranged in the circumferential direction along virtual circles centered on the axis L0, and the friction plate 13 is divided into four radial portions by the annular portions 131 to 133. That is, the friction plate 13 is divided into a first ring part 134, a second ring part 135, a third ring part 136, and a fourth ring part 137 in order from the radially inner side.
- the annular portions 131 to 133 are magnetic blocking portions, and may be configured as through holes instead of being formed of a nonmagnetic material.
- a bearing 6 is fitted to the inner peripheral surface of the cylindrical portion 11 of the rotor 1.
- An inner peripheral surface of the bearing 6 is fixed to an outer peripheral surface of a front housing of a compressor (not shown), and the rotor 1 is rotatably supported by the front housing via the bearing 6.
- a cylindrical pulley 14 is integrally joined to the outer peripheral surface of the outer cylindrical portion 12 of the rotor 1, and multiple V grooves 14 a are formed on the outer peripheral surface of the pulley 14.
- a multi-stage V belt (not shown) driven by the engine is wound around the V groove 14a, and the rotor 1 is rotated by the rotational power of the engine transmitted through the V belt.
- the stator 2 includes a spool 21 that supports the electromagnetic coil 3 and a housing 22 in which the spool 21 is accommodated.
- the spool 21 is formed in an annular shape centered on the axis L0 by resin molding using a resin having electrical insulation as a constituent material.
- the spool 21 has a U-shaped cross section with an opening in the radial direction, and the electromagnetic coil 3 is housed in a cylindrical space inside the U-shaped portion.
- the housing 22 is formed in a ring shape with the axis L0 as the center by a magnetic material such as iron.
- the housing 22 has a C-shaped cross section with an opening on the front side, and the electromagnetic coil 3 and the spool 21 are accommodated in a cylindrical space inside the C-shaped portion.
- a cylindrical space of the housing 22 is filled with a resin material 23 having electrical insulation, and the electromagnetic coil 3 and the spool 21 are fixed by the resin material 23.
- the stator 2 is supported by the front housing of the compressor via a support member 24 fixed to the rear end portion of the housing 22.
- the electromagnetic coil 3 is formed in an annular shape around the axis L0 by winding the coil wire 3a around the cylindrical portion 21a of the spool 21.
- the electromagnetic coil 3 includes a first electromagnetic coil 31 and a second electromagnetic coil 32 disposed on the radially outer side of the first electromagnetic coil 31. That is, the electromagnetic coil 3 is divided into two and arranged in a predetermined coil storage space defined by the spool 21. By arranging the electromagnetic coil 3 in two parts, the volume (number of turns) of each of the electromagnetic coils 31 and 32 is smaller than that in which the electromagnetic coil 3 is arranged in the same coil housing space without being divided. Yes.
- the first electromagnetic coil 31 and the second electromagnetic coil 32 have the same radial length (difference between the inner diameter and the outer diameter). The radial length of the first electromagnetic coil 31 may be longer or shorter than the radial length of the second electromagnetic coil 32.
- Both ends of the coil wire 3a of the first electromagnetic coil 31 are connected to lead wires 31a and 31b, respectively. Both ends of the coil wire 3a of the second electromagnetic coil 32 are connected to lead wires 32a and 32b, respectively.
- a through-hole 22 a that penetrates the rear end portion in the front-rear direction is opened at the rear end portion of the housing 22.
- a conductive terminal (not shown) to which the ends of the coil wires 3a of the electromagnetic coils 31, 32 are connected is arranged, and the lead wires 31a, 31b, 32a, 32b are connected to the electromagnetic coil through this terminal. 31 and 32.
- the through hole 22a is provided vertically above the axis L0 (0 ° phase), but may be provided in another phase.
- the armature 4 is made of a magnetic material such as iron.
- the armature 4 is an annular plate-like member centered on the axis L0, has a predetermined thickness in the front-rear direction, and a friction surface 4a is formed on the rear end surface of the armature 4 so as to face the friction surface 1a of the rotor 1. ing.
- the armature 4 has slot-shaped annular portions 41 and 42 made of a nonmagnetic material at two radial positions facing the second ring portion 135 and the third ring portion 136 of the friction plate 13.
- a plurality of annular portions 41 and 42 are arranged in the circumferential direction along virtual circles centered on the axis L0, and are divided into three portions in the radial direction by the armature 4 and the annular portions 41 and 42. That is, the armature 4 is divided into a first ring portion 43, a second ring portion 44, and a third ring portion 45 in order from the radially inner side.
- the annular portions 41 and 42 are magnetic shielding portions, and may be configured as through holes instead of being formed of a nonmagnetic material.
- the rotor 1 and the armature 4 are arranged in the radial direction. Are opposed to each other at six locations.
- the number of magnetic pole portions corresponds to the number of locations where the magnetic flux crosses the air gap AG (FIG. 2) between the rotor 1 and the armature 4 in the axial direction (front-rear direction), that is, the number of magnetic poles.
- the hub 5 includes an annular outer hub 51 coupled to the front end face of the armature 4 by a rivet 5a, an annular inner hub 52 disposed radially inward of the outer hub 51, and an outer hub. 51 and an annular elastic member (for example, rubber member) 53 provided between the inner hub 52 and the inner hub 52.
- the inner peripheral surface and the outer peripheral surface of the elastic member 53 are respectively fixed to the outer peripheral surface of the cylindrical portion 52 a of the inner hub 52 and the inner peripheral surface of the cylindrical portion 51 a of the outer hub 51, and the outer hub 51 and the inner peripheral surface via the elastic member 53.
- the hub 52 is integrated.
- the inner hub 52 has a cylindrical portion 54 protruding rearward.
- a rotating shaft (not shown) of a compressor that rotates about the axis L0 is splined to the inner peripheral surface of the cylindrical portion 54, and the rotation of the rotor 1 is transmitted to the compressor via the armature 4 and the hub 5. Is done.
- the inner hub 52 and the rotating shaft of a compressor are couple
- the elastic member 53 applies a forward biasing force to the armature 4 so as to separate the armature 4 from the rotor 1, but a plate spring having the same function is used instead of the elastic member 53.
- the hub 5 may be configured.
- the armature 4 is biased by the elastic member 53 (FIG. 1). To move forward. For this reason, the friction surface 4a of the armature 4 is separated from the friction surface 1a of the rotor 1, and a gap (air gap AG) of a predetermined amount ⁇ g is generated between the friction surfaces 1a and 4a.
- the electromagnetic coil 3 is energized to generate a magnetic flux, and the rotor 1 and the rotor 1 and the housing 22 as shown by the arrows in FIG. Magnetic flux flows through a magnetic circuit that returns to the housing 22 via the armature 4.
- an electromagnetic attractive force electromagnettic force
- the armature 4 is attracted to the friction surface 1 a against the elastic force of the elastic member 53. Then, the rotor 1 and the armature 4 rotate together.
- the rotor 1 and the armature 4 face each other at six locations.
- Magnetic flux interlinks at the magnetic pole part. That is, the magnetic flux sequentially flows to the first ring part 134, the first ring part 43, the second ring part 135, the second ring part 44, the third ring part 136, the third ring part 45, and the fourth ring part 137.
- Such a 6-pole electromagnetic clutch can obtain a larger transmission torque than a 4-pole electromagnetic clutch.
- this point will be described.
- the effective radius R of the above formula (I) is determined by the inner and outer diameters of the friction surfaces 1a and 4a. Therefore, if the effective radius R is the same and the friction coefficient ⁇ is the same in the case of 4 poles and 6 poles, suction is performed. As the force F increases, the transmission torque T increases. On the other hand, in the case of 4 poles and 6 poles, the number of magnetic poles n in the above formula (II) is larger and the magnetic pole area S is smaller in the case of 6 poles. For this reason, if the magnetic fluxes ⁇ are equal to each other, the electromagnetic attraction force F becomes larger in the case of 6 poles, and as a result, the transmission torque T also becomes larger.
- the magnetic flux ⁇ is smaller in the case of 6 poles than in the case of 4 poles. Therefore, by adopting the 6-pole configuration, the magnetomotive force of the electromagnetic coil 3 in the clutch-on state, that is, the magnetomotive force, which is a physical quantity determined by multiplying the coil current and the number of coil turns, can be reduced, and the power consumption can be suppressed. it can.
- an energization circuit for the electromagnetic coil 3 is provided as follows. Constitute.
- FIG. 4 is a diagram showing a circuit for energizing the electromagnetic coil 3 in the electromagnetic clutch 100 according to the first embodiment.
- a control circuit 30 is connected to the battery 101 mounted on the vehicle via a relay switch 34, and the first electromagnetic coil 31 and the second electromagnetic coil 32 are energized via the control circuit 30.
- the relay switch 34 is turned on (closed) or turned off (opened) in response to a signal from the air conditioning controller 102.
- the air conditioning controller 102 controls the operation of various operation switches (for example, an air conditioner on switch, an air conditioner off switch, a differential switch, etc.) in the vehicle interior for air conditioning control, and the operation of the compressor according to the vehicle interior temperature, the set temperature, and the like. Determine whether it is necessary. If it is determined that the compressor needs to be operated, a clutch-on command is output and the relay switch 34 is turned on. Thereby, the electromagnetic coil 3 is energized. On the other hand, when it is determined that the operation of the compressor is unnecessary, a clutch-off command is output and the relay switch 34 is turned off. Thereby, the energization of the electromagnetic coil 3 is stopped.
- various operation switches for example, an air conditioner on switch, an air conditioner off switch, a differential switch, etc.
- the control circuit 30 includes a first switch 36, a second switch 37, and a diode 38.
- the first switch 36 is interposed between the plus side end (lead wire 31a) of the coil wire 3a of the first electromagnetic coil 31 and the plus side end (lead wire 32a) of the coil wire 3a of the second electromagnetic coil 32. It is disguised.
- the second switch 37 is interposed between the minus side end (lead wire 31 b) of the coil wire 3 a of the first electromagnetic coil 31 and the minus side end (lead wire 32 b) of the coil wire 3 a of the second electromagnetic coil 32. It is disguised.
- the diode 38 is connected between the lead wire 31 b closer to the first electromagnetic coil 31 than the second switch 37 and the lead wire 32 a closer to the second electromagnetic coil 32 than the first switch 36.
- the diode 38 permits the flow of current from the lead wire 31b of the first electromagnetic coil 31 to the lead wire 32a of the second electromagnetic coil 32, and prohibits the flow of current in the opposite direction.
- the first switch 36 and the second switch 37 are configured by a semiconductor element such as an FET (Field Effect Transistor), for example.
- the first switch 36 and the second switch 37 are opened and closed by a signal from the control unit 35. That is, the first switch 36 and the second switch 37 are closed until an ON signal is input from the control unit 35, opened when an ON signal is output from the control unit 35, and an OFF signal is output from the control unit 35. When it is output (when the output of the ON signal stops), it is closed.
- FET Field Effect Transistor
- the control unit 35 has a timer and starts the timer when a clutch-on command is output from the controller 102. Thereafter, when the timer counts a predetermined time t1, the control unit 35 outputs an ON signal to each of the switches 36 and 37 and resets the timer.
- the predetermined time t1 is set to a time (for example, about 0.5 seconds) required for the armature 4 to be attracted to the rotor 1 after the clutch-on command is output. This predetermined time t1 takes into account the time required for the relay switch 34 to turn on after the clutch-on command and the electromagnetic coil 3 generate magnetic flux, the time required for the armature 4 to move by a predetermined amount ⁇ g by the electromagnetic attractive force, etc. Is set.
- the control unit 35 When a clutch-off command is output from the controller 102, the control unit 35 outputs an off signal.
- control circuit 30 and the control unit 35 described above are provided in a control controller 102 that is separate from the stator 2.
- the control circuit 30 and the control unit 35 are integrated on a single chip member 39 as shown in FIG. 7, configured as an integrated circuit (IC chip), and mounted on the substrate of the control controller 102.
- IC chip integrated circuit
- the relay switch 34 Before the clutch-on command is output from the controller 102, the relay switch 34 is off as shown in FIG. Therefore, the energization circuit from the battery 101 to the electromagnetic coil 3 is cut off, and the electromagnetic coil 3 is in a non-energized state.
- the relay switch 34 When the clutch-on command is output, the relay switch 34 is turned on as shown in FIG.
- the first switch 36 and the second switch 37 of the control circuit 30 remain closed. Accordingly, the first electromagnetic coil 31 and the second electromagnetic coil 32 are connected in parallel to each other via the first switch 36 and the second switch 37.
- the current from the battery 101 is diverted at the branch point 39a, flows through the first electromagnetic coil 31 and the second electromagnetic coil 32 in parallel, and then merges at the merge point 39b. That is, the current shunted at the branch point 39a flows through the coil wire 31a, the first electromagnetic coil 31, the coil wire 31b, and the second switch 37, while the first switch 36, the coil wire 32a, the second electromagnetic coil 32, and It flows through the coil wire 32b. In this case, since the control circuit 30 is provided with the diode 38, the flow of current from the lead wire 32a to the lead wire 31b is blocked.
- the first electromagnetic coil 31 and the second electromagnetic coil 32 are connected in parallel, so that the total combined resistance of the coils 31 and 32 is reduced.
- the flowing current increases. Therefore, the magnetomotive force generated in the electromagnetic coil 3 is increased, the electromagnetic attractive force between the rotor 1 and the armature 4 is increased, and the operation of the electromagnetic clutch 100 when the electromagnetic clutch 100 is turned on from the off state. Can increase the sex.
- the control unit 35 When a predetermined time t1 has elapsed since the clutch-on command was output, the control unit 35 outputs an ON signal to the first switch 36 and the second switch 37, respectively. As a result, the switches 36 and 37 are opened as shown in FIG. 6, and the first electromagnetic coil 31 and the second electromagnetic coil 32 are connected in series with each other. As a result, the current from the battery 101 sequentially flows through the lead wire 31a, the first electromagnetic coil 31, the lead wire 31b, the diode 38, the lead wire 32a, the second electromagnetic coil 32, and the lead wire 32b. In this state, since the circuit resistance increases as compared with the case of the parallel connection in FIG. 5, the current flowing through the electromagnetic coils 31 and 32 decreases. Thereby, the power consumption in a clutch-on state can be suppressed and it contributes to the improvement of a fuel consumption.
- the electromagnetic coils 3 are connected in parallel for a predetermined time t1 when shifting from the clutch-off state to the on-state, the power consumption during that time increases.
- the predetermined time t1 is a time required for the armature 4 to be adsorbed to the rotor 1 and is very short.
- the electromagnetic coils 3 are connected in series, the magnetomotive force by the electromagnetic coils 3 is reduced as compared with the case of parallel connection.
- the air gap AG is already 0, so that it is sufficient.
- the transmission torque T can be obtained.
- the electromagnetic coil 3 is composed of the first electromagnetic coil 31 and the second electromagnetic coil 32, and when the controller 102 outputs a clutch-on command, the electromagnetic coil 3 starts energization, and in response to a signal from the control unit 35.
- the control circuit 30 is switched at a predetermined timing. That is, when a clutch-on command is output to the control unit 35, the first electromagnetic coil 31 and the second electromagnetic coil 32 are connected in parallel, and after the elapse of a predetermined time t1, the first electromagnetic coil 31 and the second electromagnetic coil. 32 were connected in series.
- the magnetoresistance generated by the electromagnetic coil 3 increases because the combined resistance of the electromagnetic coil 3 is small. For this reason, the electromagnetic attractive force between the rotor 1 and the armature 4 increases, and the operability of the electromagnetic clutch 100 when the electromagnetic clutch 100 is switched from the off state to the on state can be improved.
- the time required for the armature 4 to be attracted to the rotor 1 after the energization of the electromagnetic coil 100 is set as the predetermined time t1 in advance, and after the elapse of the predetermined time t1, the first electromagnetic coil 31 and the first Two electromagnetic coils 32 are connected in series. Thereby, it is possible to suppress the power consumption of the electromagnetic coil 3 while ensuring good operability of the electromagnetic clutch 100 without flowing an unnecessarily large current to the electromagnetic coil 3.
- the control circuit 30 is provided with the first switch 36 and the second switch 37, and after a predetermined time t1 from the output of the clutch-on command, the switches 36 and 37 are switched by a signal from the control unit 35. 30 was switched from the parallel circuit to the series circuit.
- Such a control circuit 30 and the control unit 35 can be configured as, for example, an IC chip 39 (FIG. 7) and can be easily incorporated into the control controller 102.
- Ta be the required transmission torque between the rotor 1 and the armature 4 in the clutch-on state where the air gap amount ⁇ g is zero.
- the number of magnetic poles of the electromagnetic clutch 100 is six, the magnetomotive force for obtaining the necessary transmission torque Ta can be reduced, for example, compared to an electromagnetic clutch having four magnetic poles. Power consumption can be reduced.
- the amount of magnetic flux passing through the magnetic circuit necessary for obtaining the necessary transmission torque Ta may be smaller than in the case of 4 poles. For this reason, the thickness of the magnetic body (iron part) which comprises a magnetic circuit can be made thin, and the electromagnetic clutch 100 can be reduced in weight.
- the electromagnetic coil 3 is constituted by the cylindrical first electromagnetic coil 31 and the second electromagnetic coil 32, and the second electromagnetic coil 32 is coaxial with the first electromagnetic coil 31 and radially outside the first electromagnetic coil 31.
- the rear end surfaces of the electromagnetic coils 31 and 32 can be arranged so as to face the through holes 22a in the rear end portion of the housing 22, and both end portions of the coil wire 3a of the electromagnetic coils 31 and 32 are arranged on the housing 22. It can be taken out easily.
- the electromagnetic coil 3 is divided into two electromagnetic coils 31 and 32.
- the electromagnetic coil 3 may be divided into three or more and connected in parallel and in series.
- the electromagnetic coils 31 and 32 may be disposed adjacent to each other in the axial direction instead of being disposed adjacent to each other in the radial direction.
- FIG. 8 shows an example in which three electromagnetic coils 31 to 33 are arranged adjacent to each other in the axial direction.
- the electromagnetic coil 3 when the electromagnetic coil 3 is divided into three, the combined resistance when the electromagnetic coil 3 is connected in parallel is smaller than when the electromagnetic coil 3 is divided into two. As a result, the electromagnetic attractive force when the clutch-on command is output is further increased, and the operability of the electromagnetic clutch 100 can be further improved.
- the electromagnetic coils 31 to 33 are arranged side by side in the axial direction as shown in FIG. 8, the electromagnetic coils 31 to 33 can be configured to have the same size, and are equal to the electromagnetic coils 31 to 33. Current can flow.
- the second embodiment is different from the first embodiment in the configuration of a switch unit that switches an energization circuit to the electromagnetic coil 3. That is, in the first embodiment, the switches 36 and 37 are provided on the IC chip 39 independent of the stator 2, and the switches 36 and 37 are switched by a signal from the control unit 35. In contrast, in the second embodiment, a switch portion is provided integrally with the stator 2, and the switch is automatically switched by the electromagnetic attractive force of the electromagnetic coil 3. Note that the configuration other than the switch unit is the same as that of the first embodiment, and differences from the first embodiment will be mainly described below.
- FIG. 9 is a perspective view of the stator 2 showing the configuration of the main part of the electromagnetic clutch 100 according to the second embodiment (viewed obliquely from the rear).
- the direction perpendicular to the front-rear direction in the horizontal plane is defined as the left-right direction and the direction perpendicular to the front-rear direction and the left-right direction is defined as the up-down direction for convenience.
- a switch unit 70 is provided at a phase of 0 ° corresponding to the position of the through hole 22 a of the housing 22.
- the switch unit 70 is covered with a rectangular parallelepiped cover 7, and a pair of left and right terminals 71 and 72 protrude from the upper surface of the cover 7.
- FIGS. 10 and 11 are a perspective view showing the configuration of the switch unit 70 in the cover 7, FIG. 11 is a view taken along the line XI of FIG. 10 (viewed from the rear), and FIG. 12 is a view taken along the line XII of FIG. (Viewed from the left).
- the terminals 71 and 72 are made of a conductive member such as a copper plate, and are arranged at a predetermined distance in the left-right direction.
- the terminals 71 and 72 are fixed to the flat plate portions 711 and 721 extending in the front-rear direction and the rear end portions of the flat plate portions 711 and 721, and the flat plates extending in the vertical direction beyond the upper and lower surfaces of the flat plate portions 711 and 721. Parts 712 and 722, respectively.
- the flat plate portions 711 and 721 are arranged on the same horizontal plane, and the flat plate portions 712 and 722 are arranged on the same vertical plane.
- a pair of left and right terminals 73 and 74 are arranged below the terminals 71 and 72.
- the terminals 73 and 74 are made of a conductive member such as a copper plate, and are arranged at a predetermined distance in the left-right direction.
- the terminals 73 and 74 include flat plate portions 731 and 741 extending in the front-rear direction, flat plate portions 732 and 742 extending upward from the rear end portions of the flat plate portions 731 and 741, the left side surface of the front end portion of the flat plate portion 731 and
- the flat plate portion 741 has flat plate portions 733 and 743 extending downward from the right side surface of the front end portion.
- the flat plate portions 731 and 741 are arranged on the same horizontal plane at a predetermined distance from the lower surfaces of the flat plate portions 711 and 721 of the terminals 71 and 72.
- the flat plate portions 732 and 742 are arranged on the same vertical plane as the flat plate portions 712 and 722 at a predetermined distance from the lower end surfaces of the flat plate portions 712 and 722 of the terminals 71 and 72.
- a spool 75 is disposed so as to be movable in the front-rear direction.
- guide portions (not shown) that restrict the moving direction of the spool 75 are provided on the lower surfaces of the flat plate portions 711 and 721 and the upper surfaces of the flat plate portions 731 and 741.
- the spool 75 is made of an electrically insulating resin or the like, and has a rectangular parallelepiped shape as a whole.
- a suction plate 76 extending in the left-right direction beyond the left and right side surfaces of the spool 75 is fixed to the front end surface of the spool 75.
- the suction plate 76 is made of a magnetic material such as iron.
- a pair of left and right contact members 77 and 78 are fixed to the rear end surface of the spool 75 so as to face the flat plate portions 712 and 732 of the terminals 71 and 73 and the flat plate portions 722 and 742 of the terminals 72 and 74, respectively.
- the contact members 77 and 78 are made of a conductive metal such as copper, and are arranged at a predetermined distance in the left-right direction.
- a diode 79 is disposed between the flat plate portion 733 of the terminal 73 and the flat plate portion 743 of the terminal 74, and a pair of lead wires protruding from the left and right ends of the diode 79 are connected to the flat plate portions 733 and 743, respectively.
- the diode 79 allows the flow of electricity from the flat plate portion 743 side to the flat plate portion 733 side, and prohibits the flow of electricity from the flat plate portion 733 side to the flat plate portion 743 side.
- the front end portions of the flat plate portions 711 and 721 of the terminals 71 and 72 are accommodated in the through holes 22 a of the housing 22, and one end portion (plus side) of the first electromagnetic coil 31 and the first end portion are connected to these front end portions.
- One end (minus side) of the two electromagnetic coils 32 is connected to each other.
- the front end portions of the flat plate portions 731 and 741 of the terminals 73 and 74 are also accommodated in the through-hole 22a, and the other end portion (plus side) of the second electromagnetic coil 32 and the other end portion (minus side) of the first electromagnetic coil 31 are included in these front end portions. Side) are connected.
- the spring 80 and one end of the damper member 81 are fixed to the front end surface of the suction plate 76, respectively.
- the spring 80 and the damper member 81 are accommodated in the through hole 22 a, and the other end is fixed to the rear end surface of the spool 21 in the housing 22.
- the spring 80 urges the spool 75 rearward via the suction plate 76, and the rear end surfaces of the contact members 77 and 78 are the front end surfaces of the flat plate portions 712 and 732 of the terminals 71 and 73 and the flat plate portions of the terminals 72 and 74.
- the front ends of 722 and 742 are in contact with each other.
- the relay switch 34 is connected to the upper end portion of the flat plate portion 712 of the terminal 71 via a lead wire, and the upper end portion of the flat plate portion 722 of the terminal 72 is grounded via the lead wire.
- the terminal 71 corresponds to the lead wire 31a in FIG. 4
- the terminal 72 corresponds to the lead wire 32b.
- the flat plate portions 732 and 742 of the terminals 73 and 74 are in contact with the flat plate portions 712 and 722 of the terminals 71 and 72 via the contact portions 77 and 78, respectively, and the terminals 73 and 74 are respectively connected to the lead wires of FIG. It corresponds to 32a and 31b.
- terminals 71 to 74 are fixed contacts, contact members 77, 78 are movable contacts, and the terminals 71, 73 and the contact member 77 are connected to the switch 70a, the terminals 72, 74 and the contact member 78 constitute a switch 70b.
- the switch 70 a corresponds to the switch 36 in FIG. 4, and the switch 70 b corresponds to the switch 37.
- the relay switch 34 When a clutch-on command is output from the air conditioning unit 102 (FIG. 4), the relay switch 34 is turned on, and a current flows from the battery 101 to the terminal 71. Immediately after the relay switch 34 is turned on, the contact member 77 contacts the flat plate portions 712 and 732 of the terminals 71 and 73 and the contact member 78 contacts the flat plate portions 722 and 742 of the terminals 72 and 74 as shown in FIG. Yes.
- the suction plate 76 is attracted by the electromagnetic attractive force of the electromagnetic coil 3.
- the spool 75 moves forward against the biasing force of the spring 80, and the pair of left and right contact members 77, 78 move the flat plate portions 712, 732 of the terminals 71, 73 and the terminals 72, 74. Separate from the flat plate portions 722 and 742.
- the current from the battery 101 sequentially flows to the terminal 71, the first electromagnetic coil 31, the terminal 74, the diode 79, the terminal 73, the second electromagnetic coil 32, and the terminal 72. That is, a current flows through the first electromagnetic coil 31 and the second electromagnetic coil 32 in series. Thereby, the power consumption of the electromagnetic coil 3 after the operation of the electromagnetic clutch 100 can be suppressed.
- the damper member 81 acts as a resistor, and the forward movement of the spool 75 is suppressed. For this reason, the spool 75 does not move immediately after the relay switch 34 is turned on, but moves forward by a predetermined time t2 after the relay switch 34 is turned on. As a result, current flows through the electromagnetic coils 31 and 32 in parallel for a predetermined time t2.
- the predetermined time t2 can be appropriately set by adjusting the specifications (hardness and the like) of the damper member 81.
- the damper member 81 is set so that the time required from when the clutch-on command is output until the armature 4 is attracted to the rotor 1 is the predetermined time t2.
- the energization circuit is switched from parallel to serial after the electromagnetic clutch 100 is turned on. For this reason, it is possible to suppress the power consumption of the electromagnetic coil 3 while ensuring good operability of the electromagnetic clutch 100 without flowing an unnecessarily large current to the electromagnetic coil 3.
- the switch unit 70 since the switch unit 70 is covered with the cover 7, it is possible to prevent dust and the like from being mixed into the cover 7, and to ensure stable operation of the switches 70a and 70b.
- the switches 36 and 37 are operated by a signal from the control unit 35 after a predetermined time t1 has elapsed since the clutch-on command was output.
- the spring 80 and the damper member 81 are interposed in the movement path of the contact members 77 and 78, so that the electromagnetic coil 3 is passed after a predetermined time t2 since the clutch-on command is output.
- the switches 70a and 70b are actuated by the electromagnetic attraction force generated.
- any configuration of the switch and the switch operation unit may be used.
- the switches 36 and 37 and the control unit 35 may not be integrated in the IC chip 39 but may be configured by other electronic circuits having relays, resistors, and the like.
- the switches 70a and 70b are operated by separating the contact members 77 and 78 from the terminals 71 to 74. On the contrary, the switches 70a and 70b are brought into contact with the terminals 71 to 74 by bringing the contact members 77 and 78 into contact with the terminals 71 to 74. May be activated.
- the configuration of the circuit switching unit is not limited to that described above.
- a detection unit that detects whether or not the armature 4 is attracted to the rotor 1 may be provided, and the switch may be switched when the detection of the armature 4 is detected by the detection unit.
- the switches 36, 37, 70a, and 70b are opened. After the clutch-on command is output, the switches 36, 37, 70a, and 70b are closed. 70a and 70b may be opened. That is, the configuration of the energization circuit that energizes the electromagnetic coil 3 is not limited to that described above.
- the second electromagnetic coil 32 (second coil) is disposed on the radially outer side of the first electromagnetic coil 31 (first coil).
- the second electromagnetic coil 32 (second coil) is disposed adjacent to the first electromagnetic coil 31 (first coil) in the axial direction.
- the number of magnetic poles of the electromagnetic clutch 100 is six, but the number of magnetic poles may be more or less than six. For example, even if the number of magnetic poles of the electromagnetic clutch 100 is four, the operability of the electromagnetic clutch can be improved by switching the parallel circuit and the series circuit as described above.
- the electromagnetic clutch 100 is applied to the compressor of the automotive air conditioner.
- the electromagnetic clutch of the present invention can be applied to other rotating devices as well. Therefore, the rotor 1 may be driven by another rotational drive source (for example, a motor) instead of driving the rotor 1 by power from the engine.
- the driven device to which the rotational force is transmitted via the electromagnetic clutch 100 may be other than the compressor.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
以下、図1~図8を参照して、本発明による電磁クラッチの第1の実施形態について説明する。電磁クラッチは、電磁コイルへの通電によって生じる電磁力により、回転駆動源からの動力を伝達および遮断する乾式単板クラッチである。以下では、一例として、エンジンからの動力を自動車用空調装置の圧縮機(冷媒圧縮機)に伝達および圧縮機への動力伝達を遮断する電磁クラッチについて説明する。
T=μ・F・R (I)
ここで、電磁吸引力Fと、磁極数nとの間には次式(II)のような関係がある。
F∝n・φ2/(2・μ0・S) (II)
上式(II)で、φは、ロータ1とアーマチャ4の磁極部における磁束、μ0は、真空の透磁率、Sは、ロータ1とアーマチャ4の対向部分の磁極面積(1極当りの面積)である。
(1)電磁コイル3を第1電磁コイル31と第2電磁コイル32により構成し、制御コントローラ102がクラッチオン指令を出力すると、電磁コイル3の通電を開始するとともに、制御部35からの信号により所定のタイミングで制御回路30を切り替えるようにした。すなわち、制御部35にクラッチオン指令が出力されたときに、第1電磁コイル31と第2電磁コイル32を並列に接続し、所定時間t1の経過後に、第1電磁コイル31と第2電磁コイル32を直列に接続するようにした。これによりクラッチオン指令の直後は、電磁コイル3の合成抵抗が小さいため、電磁コイル3で発生する起磁力が大きくなる。このため、ロータ1とアーマチャ4との間の電磁吸引力が増大し、電磁クラッチ100がオフ状態からオン状態になる際の電磁クラッチ100の作動性を高めることができる。
図9~図13を参照して本発明による電磁クラッチの第2の実施形態について説明する。第2の実施形態が第1の実施形態と異なるのは、電磁コイル3への通電回路を切り替えるスイッチ部の構成である。すなわち、第1の実施形態では、ステータ2から独立したICチップ39にスイッチ36,37を設け、制御部35からの信号によりスイッチ36,37を切り替えるようにした。これに対し、第2の実施形態では、ステータ2に一体にスイッチ部を設け、電磁コイル3の電磁吸引力によりスイッチを自動的に切り替える。なお、スイッチ部以外の構成は第1の実施の形態と同一であり、以下では、第1の実施形態との相違点を主に説明する。
本実施形態の変形例として以下のようなものが考えられる。上記第1の実施形態では、クラッチオン指令が出力されてから所定時間t1の経過後に、制御部35からの信号によりスイッチ36,37を作動するようにした。また、上記第2の実施形態では、接点部材77,78の移動経路にばね80とダンパ部材81を介装することで、クラッチオン指令が出力されてから所定時間t2の経過後に、電磁コイル3が発生する電磁吸引力によりスイッチ70a,70bを作動するようにした。しかしながら、クラッチオン指令が出力されてから所定時間の経過後にスイッチを作動するのであれば、スイッチおよびスイッチ作動部の構成はいかなるものでもよい。
2 ステータ
3 電磁コイル
4 アーマチャ
13 摩擦板
30 制御回路
31 第1電磁コイル
32 第2電磁コイル
35 制御部
70 スイッチ部
100 電磁クラッチ
Claims (8)
- 摩擦板(13)を有し、軸線(L0)を中心に回転するロータ(1)と、
クラッチオン指令およびクラッチオフ指令により通電および通電が停止される電磁コイル(3)を有するステータ(2)と、
前記電磁コイル(3)への通電によって発生した電磁吸引力により、前記摩擦板(13)に吸着されるアーマチャ(4)と、を備えた電磁クラッチ(100)であって、
前記電磁コイル(3)は、複数の電磁コイル(31,32)を含み、
前記クラッチオン指令が出力されたときに、前記複数の電磁コイル(31,32)に並列に電流が流れ、その後、前記アーマチャ(4)が前記摩擦板(13)に吸着されると前記複数の電磁コイル(31,32)に直列に電流が流れるように、前記電磁コイル(3)への通電回路を並列回路から直列回路に切り替える回路切替部(30,35;70)をさらに備えることを特徴とする電磁クラッチ。 - 請求項1に記載の電磁クラッチにおいて、
前記回路切替部(30,35;70)は、
前記通電回路を前記並列回路から前記直列回路に切り替えるスイッチ(36,37;70a,70b)と、
前記クラッチオン指令が出力されてから所定時間(t1;t2)の経過後に前記スイッチ(36,37;70a,70b)を作動するスイッチ作動部(35;3,80,81)と、を有することを特徴とする電磁クラッチ。 - 請求項2に記載の電磁クラッチにおいて、
前記スイッチ(36;37)および前記スイッチ作動部(35)は、電子回路(39)により構成されていることを特徴とする電磁クラッチ。 - 請求項2に記載の電磁クラッチにおいて、
前記スイッチ(70a,70b)は、前記ステータ(2)の端部に取り付けられ、前記電磁コイル(31,32)に接続された固定接点(71~74)と、前記電磁コイル(3)への通電によって発生した電磁吸引力により前記固定接点(71~74)に当接または離間する可動接点(77,78)とを有し、
前記スイッチ作動部(3,80,81)は、前記電磁吸引力による前記可動接点(77,78)の移動を抑制するダンパ部材(81)を有することを特徴とする電磁クラッチ。 - 請求項2~4のいずれか1項に記載の電磁クラッチにおいて、
前記回路切替部(30;70)は、前記スイッチ(36,37;70a,70b)とともに前記並列回路または前記直列回路を構成するダイオード(38;79)を有することを特徴とする電磁クラッチ。 - 請求項1~5のいずれか1項に記載の電磁クラッチにおいて、
前記ロータ(1)と前記アーマチャ(4)との間に6極以上の磁極部(134~137、43~45)を有することを特徴とする電磁クラッチ。 - 請求項1~6のいずれか1項に記載の電磁クラッチにおいて、
前記複数の電磁コイル(31,32)は、
前記軸線(L0)を中心とした円筒状の第1のコイル(31)と、
前記第1のコイル(31)の径方向外側に配置され、前記軸線(L0)を中心とした円筒状の第2のコイル(32)とを有することを特徴とする電磁クラッチ。 - 請求項1~6のいずれか1項に記載の電磁クラッチにおいて、
前記複数の電磁コイル(31,32)は、
前記軸線(L0)を中心とした円筒状の第1のコイル(31)と、
前記第1のコイル(31)に前記軸線(L0)の方向に隣接して配置され、前記軸線(L0)を中心とした円筒状の第2のコイル(32)とを有することを特徴とする電磁クラッチ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/384,987 US9482293B2 (en) | 2012-03-14 | 2012-09-18 | Electromagnetic clutch |
CN201280071394.9A CN104169605B (zh) | 2012-03-14 | 2012-09-18 | 电磁离合器 |
KR1020147025498A KR101628595B1 (ko) | 2012-03-14 | 2012-09-18 | 전자 클러치 |
DE112012006022.9T DE112012006022B4 (de) | 2012-03-14 | 2012-09-18 | Elektromagnetische Kupplung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-057601 | 2012-03-14 | ||
JP2012057601A JP5810986B2 (ja) | 2012-03-14 | 2012-03-14 | 電磁クラッチ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013136560A1 true WO2013136560A1 (ja) | 2013-09-19 |
Family
ID=49160516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/073854 WO2013136560A1 (ja) | 2012-03-14 | 2012-09-18 | 電磁クラッチ |
Country Status (6)
Country | Link |
---|---|
US (1) | US9482293B2 (ja) |
JP (1) | JP5810986B2 (ja) |
KR (1) | KR101628595B1 (ja) |
CN (1) | CN104169605B (ja) |
DE (1) | DE112012006022B4 (ja) |
WO (1) | WO2013136560A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014073142A1 (ja) * | 2012-11-08 | 2014-05-15 | 株式会社デンソー | 電磁クラッチ、電磁クラッチの制御装置及び電磁クラッチの制御方法 |
US11466735B2 (en) | 2020-03-13 | 2022-10-11 | Rolls-Royce Corporation | Electromagnetic clutch system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105909691A (zh) * | 2016-05-17 | 2016-08-31 | 廊坊市鑫佳机电有限公司 | 驱动离合器 |
US10590999B2 (en) | 2017-06-01 | 2020-03-17 | Means Industries, Inc. | Overrunning, non-friction, radial coupling and control assembly and switchable linear actuator device for use in the assembly |
JP7238832B2 (ja) * | 2020-02-21 | 2023-03-14 | トヨタ自動車株式会社 | 車両用電磁クラッチ |
CN112032215A (zh) * | 2020-08-10 | 2020-12-04 | 吴华 | 一种汽车传动装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54108852U (ja) * | 1978-01-19 | 1979-07-31 | ||
JPH04228932A (ja) * | 1990-02-27 | 1992-08-18 | Dana Corp | 電気式クラッチ・アクチュエータ |
JPH0744360U (ja) * | 1993-02-22 | 1995-11-14 | サンデン株式会社 | 電磁クラッチ |
JP2000344431A (ja) * | 1999-05-31 | 2000-12-12 | Toshiba Fa Syst Eng Corp | 特殊運転機能付きエレベータ |
JP2004092857A (ja) * | 2002-09-03 | 2004-03-25 | Ntn Corp | 電磁式2方向クラッチの通電制御回路 |
JP2005344876A (ja) * | 2004-06-04 | 2005-12-15 | Denso Corp | 電磁クラッチ |
JP2006313017A (ja) * | 2005-05-04 | 2006-11-16 | Visteon Global Technologies Inc | マルチステージ電磁クラッチコイル |
JP2006342937A (ja) * | 2005-06-10 | 2006-12-21 | Hitachi Ltd | 電磁クラッチ装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54108825U (ja) * | 1978-01-20 | 1979-07-31 | ||
US4428470A (en) | 1981-07-17 | 1984-01-31 | General Motors Corporation | Electromagnetic clutch |
US5119918A (en) | 1991-10-11 | 1992-06-09 | Dana Corporation | Electromagnetic clutch with permanent magnet brake |
CN202065375U (zh) * | 2010-12-31 | 2011-12-07 | 兰州飞行控制有限责任公司 | 飞机飞控***电磁离合器控制电路 |
CN202092283U (zh) * | 2011-06-07 | 2011-12-28 | 龚文资 | 一种汽车空调电磁离合器控制电路 |
-
2012
- 2012-03-14 JP JP2012057601A patent/JP5810986B2/ja not_active Expired - Fee Related
- 2012-09-18 US US14/384,987 patent/US9482293B2/en not_active Expired - Fee Related
- 2012-09-18 CN CN201280071394.9A patent/CN104169605B/zh not_active Expired - Fee Related
- 2012-09-18 WO PCT/JP2012/073854 patent/WO2013136560A1/ja active Application Filing
- 2012-09-18 DE DE112012006022.9T patent/DE112012006022B4/de not_active Expired - Fee Related
- 2012-09-18 KR KR1020147025498A patent/KR101628595B1/ko not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54108852U (ja) * | 1978-01-19 | 1979-07-31 | ||
JPH04228932A (ja) * | 1990-02-27 | 1992-08-18 | Dana Corp | 電気式クラッチ・アクチュエータ |
JPH0744360U (ja) * | 1993-02-22 | 1995-11-14 | サンデン株式会社 | 電磁クラッチ |
JP2000344431A (ja) * | 1999-05-31 | 2000-12-12 | Toshiba Fa Syst Eng Corp | 特殊運転機能付きエレベータ |
JP2004092857A (ja) * | 2002-09-03 | 2004-03-25 | Ntn Corp | 電磁式2方向クラッチの通電制御回路 |
JP2005344876A (ja) * | 2004-06-04 | 2005-12-15 | Denso Corp | 電磁クラッチ |
JP2006313017A (ja) * | 2005-05-04 | 2006-11-16 | Visteon Global Technologies Inc | マルチステージ電磁クラッチコイル |
JP2006342937A (ja) * | 2005-06-10 | 2006-12-21 | Hitachi Ltd | 電磁クラッチ装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014073142A1 (ja) * | 2012-11-08 | 2014-05-15 | 株式会社デンソー | 電磁クラッチ、電磁クラッチの制御装置及び電磁クラッチの制御方法 |
US11466735B2 (en) | 2020-03-13 | 2022-10-11 | Rolls-Royce Corporation | Electromagnetic clutch system |
Also Published As
Publication number | Publication date |
---|---|
JP2013190065A (ja) | 2013-09-26 |
US20150034448A1 (en) | 2015-02-05 |
US9482293B2 (en) | 2016-11-01 |
CN104169605B (zh) | 2016-10-12 |
DE112012006022T5 (de) | 2015-02-26 |
JP5810986B2 (ja) | 2015-11-11 |
CN104169605A (zh) | 2014-11-26 |
KR20140125854A (ko) | 2014-10-29 |
DE112012006022B4 (de) | 2019-07-11 |
KR101628595B1 (ko) | 2016-06-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5810986B2 (ja) | 電磁クラッチ | |
JP5991189B2 (ja) | スタータ用電磁スイッチ | |
JP5949651B2 (ja) | スタータ | |
JP5626595B2 (ja) | 電磁クラッチ | |
JP6020304B2 (ja) | クラッチ機構 | |
JP5003520B2 (ja) | スタータ | |
US6935477B2 (en) | Magnet type clutch device or magnet type fan clutch device | |
JP6107110B2 (ja) | 電磁リレー | |
JP5046851B2 (ja) | 無励磁作動型電磁ブレーキ | |
JP6057677B2 (ja) | 電磁スイッチ | |
JP6351755B2 (ja) | アクチュエータ | |
JP6689374B2 (ja) | ロータリソレノイドの駆動制御方法 | |
KR101720803B1 (ko) | 전자 클러치 | |
JP6764932B2 (ja) | ロータリソレノイド | |
JP2018141540A (ja) | 電磁クラッチ | |
WO2018012167A1 (ja) | エンジン始動装置 | |
KR101842148B1 (ko) | 압축기용 전자클러치 | |
JP6175986B2 (ja) | スタータ用電磁スイッチ | |
KR101508791B1 (ko) | 압축기용 전자클러치의 필드코일 어셈블리 | |
JPH0112365Y2 (ja) | ||
JP2018115749A (ja) | 電磁クラッチ | |
JP2000213560A (ja) | 電磁クラッチ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12870956 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20147025498 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14384987 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120120060229 Country of ref document: DE Ref document number: 112012006022 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12870956 Country of ref document: EP Kind code of ref document: A1 |