WO2004109902A1 - Worwiderstandsbaugruppe für einen elektromotor und schaltungsanordnung mit einer vorwiderstandsbaugruppe zum betreiben eines elektromotors sowie verwendung einer vorwiderstandsbaugruppe - Google Patents
Worwiderstandsbaugruppe für einen elektromotor und schaltungsanordnung mit einer vorwiderstandsbaugruppe zum betreiben eines elektromotors sowie verwendung einer vorwiderstandsbaugruppe Download PDFInfo
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- WO2004109902A1 WO2004109902A1 PCT/EP2004/005420 EP2004005420W WO2004109902A1 WO 2004109902 A1 WO2004109902 A1 WO 2004109902A1 EP 2004005420 W EP2004005420 W EP 2004005420W WO 2004109902 A1 WO2004109902 A1 WO 2004109902A1
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- WIPO (PCT)
- Prior art keywords
- series resistor
- switching element
- electric motor
- resistor assembly
- assembly according
- Prior art date
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- 230000002441 reversible effect Effects 0.000 claims abstract description 30
- 230000001419 dependent effect Effects 0.000 claims description 27
- 230000005405 multipole Effects 0.000 claims description 14
- 239000004065 semiconductor Substances 0.000 claims description 5
- 230000001629 suppression Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 abstract description 8
- 230000011664 signaling Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000013021 overheating Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000002427 irreversible effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/08—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by manual control without auxiliary power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/20—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using multi-position switch, e.g. drum, controlling motor circuit by means of relays
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/288—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance
Definitions
- Series resistor assembly for an electric motor and circuit arrangement with a series resistor assembly for operating an electric motor and use of a series resistor assembly
- the invention relates to a series resistor assembly for an electric motor and the use of a series resistor assembly in a circuit arrangement for operating an electric motor, in particular an electrically driven fan blower for a vehicle.
- electric motors in particular electrically operated fan blowers
- fan blower or the fan is usually operated in one or more speed stages by means of a series resistor module.
- Simple fans for motor cooling consist of so-called brush motors with series resistors, which are usually combined in a series resistor assembly.
- This series resistor module is used to control the speed of the fan. In the lower speed levels, the series resistor module is connected in series with the electric motor, whereas in the maximum speed levels the electric motor is connected directly to an on-board electrical system voltage via a conventional electrical system fuse.
- a temperature fuse in particular a temperature-dependent micro-temperature fuse, is therefore generally provided in the series resistor assembly.
- This temperature fuse is generally connected in series with the series resistor, so that if the series resistor is thermally overloaded, the temperature fuse responds in good time, thus providing simple fire protection.
- the disadvantage here is that the temperature fuse is not designed to be reversible, so that the entire series resistor module must be replaced in the event of a fault.
- the temperature fuse may respond earlier in undesired cases, such as, for example, the fan being temporarily blocked by a foreign body. If the temperature fuse responds too early, the fan is switched off at the lower speed levels and can overheat the cooling system and possibly damage the internal combustion engine if the fault is not recognized in good time. In addition, a premature triggering of the temperature fuse only allows the fan to operate at the maximum speed. If the electric motor, e.g. a brush motor, continuously started and operated at the maximum speed level, this leads to a significant reduction in the life of the electric motor.
- the electric motor e.g. a brush motor
- the invention is therefore based on the object of specifying a series resistor assembly for an electric motor, which provides sufficiently good protection, in particular also in lower speed levels, without a protection being triggered prematurely and unintentionally. Furthermore, a preferred use of a series resistor assembly for an electric motor is to be specified.
- the object is achieved according to the invention by a series resistor assembly for an electric motor, in particular for an electrically driven fan blower for a vehicle, comprising a series resistor for controlling the number of revolutions of the electric motor in several speed stages, optionally with a temperature fuse connected in series with the series resistor, with a reversible switching element for at least one of the speed levels is integrated.
- the invention is based on the consideration that in the event of an overload on one of the electric motors, for example due to stiffness or due to blocking of a fan driven by the electric motor, for example due to the penetration of a foreign body, there is considerable thermal stress, in particular excessive heating can come, which consequently also leads to an increase in the temperature of the series resistor and the electric motor.
- This in turn means that an irreversible temperature fuse arranged in the series circuit of the electric motor in a series resistor unit responds due to the increased temperature of the series resistor, so that operation of the electric motor in lower speed levels is only possible again after the series resistor module has been replaced. Therefore, according to the invention, the series resistor assembly is provided with an additional switching element that is designed to be reversible.
- the additional switching element is preferably contacted with a connection of the series resistor.
- the switching element is preferably arranged to make thermal contact with the series resistor.
- the switching element is expediently designed as a temperature-dependent component.
- the switching element is advantageously designed as a reversible thermal protection switch, as a semiconductor component or as a temperature-dependent resistor.
- the switching element designed as a reversible thermal protection switch can be designed as a bimetal strip. Such thermal, in particular reversible triggers bend when heated and thus trip at an overtemperature.
- the switching element can be used as a semiconductor component, e.g. a TEMPFET, or as a temperature-dependent resistor.
- Other alternative electronic or mechanical components with corresponding temperature-dependent characteristic curves, such as PTC resistors or semiconductor switches can also be used as switching elements. In other words: by detecting the critical temperatures directly at the element causing the temperature increase - the series resistor - by means of the switching element itself, triggering the temperature-dependent switching element provides fire and overheating protection that is as quick and safe as possible.
- the switching element can be designed as an opener, closer or changeover switch.
- the switching element is arranged in a thermally contacting manner with the series resistor for a particularly safe and simple detection of excess temperatures at the series resistor.
- the switching element is integrated in the series resistor assembly, in particular between the series resistor and the temperature fuse or also next to the temperature fuse. This provides a sufficiently good thermal contact and thus the best possible heat transfer to the relevant heat-inducing element - the series resistor - for identification, the overtemperature and thus the overload of one of the speed levels on the electric motor.
- such an arrangement of the switching element claims little space and is therefore particularly simple and easy to insert into existing free spaces and therefore easy to retrofit.
- a first thermal switching point representing the switching element is advantageously set lower, in particular by at least 5 ° C., lower than a second thermal switching point representing the thermal fuse.
- the switching element is preferably designed in such a way that tripping takes place at a temperature of greater than 50 ° C. and thus triggers much earlier than the temperature fuse.
- it is sufficient that its tolerance ranges for tripping lie in the upper, critical temperature range of the series resistor.
- the series resistor module comprises a multi-pole connection with at least three connection elements, one of which is designed as a supply connection, another as a load connection and another as a control contact.
- connection elements one of which is designed as a supply connection, another as a load connection and another as a control contact.
- the multipole connection of the series resistor module is expediently designed as a plug-in, welded or cable connection.
- the multi-pole connection is designed as a 3-pole plug connection, welding connection or, analogously, in an alternative embodiment as a 3-wire cable connection.
- an associated motor connection can be made as standard using a plug or an appropriate welding or cable connection.
- the multi-pole connection can be designed in different ways.
- the multipole connection can preferably be designed as a 3-pin (or 3-wire) connection.
- the connection can be designed as a 2-pin connection (or 2-wire connection) with an additional contact or an additional cable, the additional contact serving to detect overloading of the electric motor.
- the additional switching element is connected on one side to the series resistor and on the other side to one of the connection elements of the series resistor module, in particular to the control contact.
- the switching element designed as an opener is preferably connected between the positive voltage connection element, ie the supply connection, and the connection element of the multipole connection forming the control contact. This enables a particularly simple and inexpensive circuit.
- connection element in particular the control contact
- a second feedback line for motor control can be connected to at least one connection element of the series resistor module, in particular to the supply connection.
- a switching element e.g., for speed-dependent control of the electric motor
- a relay for switching from one speed level to another may be provided.
- the switchover element is preferably also connected to one or more of the return lines.
- the switching element is expediently on the contact side, in particular by means of the control contact with at least one switching element, e.g. a relay for step-by-step speed-dependent control of the electric motor.
- a circuit arrangement for operating an electric motor which comprises a series resistor module of the type described above.
- a reversible switching element is assigned to it, which is connected in parallel with the electric motor to make thermal contact.
- the further reversible switching element is preferably integrated in the electric motor.
- a simple temperature-dependent protective circuit and fire protection circuit of the electric motor and the series resistor module are made possible by means of the reversible switching element integrated in the electric motor and of the series resistor integrated in the series resistor group.
- a fuse element can expediently be provided for switching off a circuit feeding the electric motor when a critical limit value of 60 A, for example, is exceeded.
- a fuse element for current-dependent triggering can be provided in a second stage.
- the circuit for power supply to the electric motor is interrupted when a critical current value of, for example, greater than 60 A is exceeded.
- an interference suppression capacitor can expediently be connected in parallel with the switching element. Depending on the requirements, other interference suppressors can also be used.
- the advantages achieved by the invention are, in particular, that when the series resistor is heated, for example by excess temperatures, the electric motor is blocked or short-circuited, based on the integration of a switching element thermally contacting the series resistor and / or a switching element itself thermally contacting the electric motor Detection and monitoring of critical temperatures directly at the heat source is possible.
- a series resistor of the electric motor e.g. a fan or blower
- assigned switching element and its connection to a multi-pole e.g. A 3-pin connection enables separate monitoring and thus reversible safe and precise shutdown of individual speed levels. After the fault has been rectified, the normal function of the electric motor can be reactivated by switching on the switching element.
- a micro temperature fuse can be dispensed with. Otherwise, redundant protection can be implemented with a micro temperature fuse provided in addition to the reversible switching element.
- the circuit arrangement according to the invention has lower losses.
- the reversible switching element has a longer service life.
- Fig. 4 to 8 schematically different embodiments for a circuit arrangement for operating an electric motor with a series resistor assembly.
- FIGS. 1A to 1D show different exemplary embodiments for a series resistor module 1 for an electric motor M.
- the series resistor module 1 comprises a series resistor 2 for speed control of the electric motor in several speed stages ST1 to STn.
- a switching element 4 for reversible switching is inserted in the series resistor assembly 1 at least one of the speed levels ST1 to STn integrated.
- the switching element 4 is preferably designed as a temperature-dependent component.
- the switching element 4 in FIGS. 1A and 1B is designed as a reversible thermal protection switch TSS, for example as a bimetal, and in FIGS. 1C and 1D as a temperature-dependent resistor PTC.
- the switching element 4 can also be designed as a semiconductor component, not shown, for example a TEMPFET.
- the switching element 4 is designed as a break contact.
- the switching element 4 can also be designed as a make contact or changeover switch.
- an interference suppression element C for example an interference suppression capacitor, can be connected in parallel with switching element 4, as shown by way of example in FIG. 1A.
- other interference suppression elements can also be used.
- the switching element 4 has a first thermal switching point ⁇ 1 at a critical temperature, for example at a temperature of greater than 50 ° C.
- the temperature fuse 6 has a second thermal switching point ⁇ 2, which is designed to be higher than the first thermal switching point ⁇ 1 of the switching element 4, in particular by a temperature of greater than 5 ° C. and, for example, only to trigger at a temperature of greater than 55 ° C. irreversible temperature fuse 6 leads.
- the switching element 4 is connected at one end on the voltage side to the series resistor 2, which is connected to the supply connection “+”. In the case of a temperature fuse 6 connected in series with the series resistor 2, the switching element 4 can also be connected to the temperature fuse 6 at the supply connection “+” "At the other end, the switching element 4 is connected to the control contact K for controlling the speed stages ST1 to STn.
- the reversible switching element 4 is preferably designed such that it is switched through in normal operation, ie it is conductive Switching element 4 is connected to the supply connection "+" on the voltage side, the control contact K of the switching element 4 is then also live.
- the switching element 4 is preferably arranged parallel to the series resistor 2 in a thermally contacting manner, as shown in FIGS. 2 and 3.
- the reversible switching element 4 is arranged between or next to the series resistor 2 and the temperature fuse 6. That is, the switching element 4 is arranged in a thermally contacting manner with the series resistor 2.
- the temperature fuse 6 is preferably at a distance from the Series resistor 2 with the switching element 4 interposed in the series resistor assembly 1.
- the series resistor 2 For a simple modular design of the series resistor assembly 1, the series resistor 2, the switching element 4 and possibly the temperature fuse 6 are arranged on a common carrier unit 10.
- the connection 8, in particular the connection elements 8a to 8c, are surrounded by a housing 12 for protection against mechanical loads and thus for protection against bending.
- Such a series resistor module 1, designed as a plug-in module, enables easy installation and removal.
- the sandwich-like arrangement of the elements - series resistor 2, switching element 4 and possibly thermal fuse 6 - of the series resistor module 1 provides a plug-in module which requires as little space as possible.
- FIG. 4 shows an exemplary embodiment of a circuit arrangement 14 for operating an electric motor M with a series resistor module 1 for speed-dependent control of the electric motor M in two speed stages ST1 and ST2.
- the electric motor M is, for example, a drive for a fan (not shown) or a blower of a vehicle (not shown) for ventilating an internal combustion engine (not shown) of the vehicle.
- the circuit arrangement 14 can comprise multi-stage series resistors 2 in one or more series resistor modules 1 in a manner not shown in any more detail.
- the electric motor M is connected to the speed stages ST1 and ST2 connected in parallel to one another via the motor connection 16.
- the speed stages ST1 and ST2 each include, as a switching element U, an associated relay R1 or R2 with associated switches S1 or S2.
- the respective relay R1 or R2 is controlled via the associated switch S1 or S2, as a result of which the associated high-current switch HR1 or HR2 is switched for the respective speed stage ST1 or ST2.
- the lower speed stage ST1 is set via the series resistor module 1 connected upstream of the electric motor M via the relay R1 and the high-current switch HR1.
- the maximum speed stage ST2 takes place by activating the relay R2 and its high-current switch HR2 by connecting the electric motor M directly to the positive line 18.
- the positive line 18 is fused in the direction of the battery via an associated fuse 22, also referred to as an electrical system fuse 22.
- the series resistor assembly 1 can be designed in various ways as described above with reference to FIGS. 1A to 1D.
- the connection 8 is provided with the connection elements 8a to 8c, which serve as control contact K, load connection N and supply connection to the positive pole "+".
- the series resistor module 1 is connected in series with the lower speed stage ST1.
- one of the switches S1 or S2 for the speed stage ST1 or ST2 of the electric motor M is actuated, so that the electric motor M is started.
- the control current for the relay R1 or R2 in question flows via an on-board electrical system fuse 22 which may be connected in the positive line 18, in a circuit from the positive line 18 via the relevant relay R1 or R2 and depending on the speed stage ST1 or ST2, in the case the lower speed stage ST1 also via the series resistor module 1 to the negative line 20.
- the activation and protective function of the lower speed stage ST1 of the electric motor M is carried out by means of the circuit arrangement 14 as follows.
- the control current i.e. the switch S1 of the lower speed stage ST1 is activated, flows from the on-board electrical system fuse 22 via the positive line 18 via the switching element 4 of the series resistor module 1, the closed switch S1, via the winding of the relay R1 to the negative line 20.
- This turns the contact - the high-current switch HR1 - of the relay R1 closed, so that the electric motor M is supplied with current via the series resistor 2 of the series resistor module 1.
- the switching element 4 which makes thermal contact with the series resistor 2.
- the circuit of the lower speed stage ST1 is interrupted by the relay R1 dropping out.
- the electric motor M is switched off.
- the switching arrangement 14 is put into operation again without replacing the series resistor module 1 by activating the speed stage ST1 by switching the switching element 4 to its original state.
- the reversible switching element 4 thus serves for the direct detection of the resistance temperature. Ie the switching element 4 protects the series resistor 2 against overheating. tongue and fire. This can also be the case, for example, if the series resistor 2 is overloaded due to a fault in the electric motor M.
- the switching element 4 acts in the circuit arrangement 14 according to FIG. 4 only on the lower speed stage ST1.
- the circuit arrangement 14 can also be continuously monitored for the current state via the feedback line 24a, e.g. error management of a control unit, not shown.
- a positive voltage level is present via the positive pole "+" of the battery.
- the switching element 4 responds, the level of the feedback line 24a is set to minus potential. That When the circuit is interrupted by the switching element 4, the feedback line 24a is set to minus potential.
- the switching element 4 is preferably provided with a switching hysteresis for tolerance ranges with different thermal switching points ⁇ 1.
- the on-board electrical system fuse 22 is provided as a current-dependent protection trigger, which in particular protects a cable harness against overheating and the electric motor M against blocking in the maximum speed stage ST2.
- a control current for the maximum speed level ST2 flows from the positive pole "+" of the battery via the on-board electrical system fuse 22, via the switch S2 which is closed to activate the speed level ST2 and via the winding of the relay R2 to the negative pole "-" of the battery.
- the contact or high-current switch HR2 of the relay R2 is thus closed and the electric motor M is supplied with current directly via the on-board electrical system fuse 22.
- the on-board electrical system fuse 22 is triggered, the circuit for the relay R2 is then interrupted and the high-current switch HR 2 is opened, so that the electric motor M is switched off.
- circuitry-related embodiments for a circuit arrangement 14 with different series resistor modules 1, with different protection stages are described below with the aid of the further figures. fen described in detail before overloading the electric motor M and / or the series resistor 2 with one or more jerk lines.
- FIG. 5 shows the circuit arrangement 14 according to FIG. 4 with an alternative series resistor module 1.
- the series resistor module 1 for the redundant or step-by-step temperature-dependent protection function of the first fan or speed stage ST1 additionally comprises a temperature fuse 6, in particular a micro temperature fuse MTS, connected in series with the series resistor 2.
- FIG. 6 shows an alternative circuit arrangement 14 with a series resistor assembly 1 according to FIG. 5.
- the circuit arrangement 14 according to FIG. 6 comprises a further feedback line 24b, which goes directly from the control contact K of the series resistor module 1.
- the feedback line 24b indicates at a positive voltage level that the switching element 4 of the series resistor module 1 has not tripped and that there is therefore no fault. If, on the other hand, the feedback line 24b is set to minus potential or floating, the triggering of the switching element 4 of the series resistor module 1 is hereby indicated.
- a connected motor controller or another control device SG can now control the electric motor M based on the plus potential present, the error message “Overloading the electric motor M” being output at the same time by indirectly increasing the temperature of the series resistor 2
- the switching element 4 can be automatically reset to the original state and the circuit arrangement 14 in. after correcting the fault and / or cooling the series resistor 2 appropriately, if appropriate Operation.
- the switching element 4 is preferably designed as a temperature-dependent component, for example as a reversible thermal protection switch, for example in the form of a bimetal strip.
- the switching element 4 of the electric motor M is integrated directly in this. That For a securely thermally contacting arrangement of the switching element 4, it is attached directly to the electric motor M, for example at a suitable location, in particular directly in the vicinity of a place where the greatest heat is generated in the event of a fault.
- the switching element 4 is arranged, for example, on the component side of a brush plate (not shown) of the electric motor M.
- the switching element 4 can also be attached at another location that is safely suitable for thermal tripping.
- the reversible switching element 4 of the electric motor M thus detects its temperature directly and protects the electric motor M against sluggishness, excess temperature or blocking.
- the latter has a three-pole motor connection 16, a third motor connection element 16c being connected to a contact of the switching element 4. Due to the fact that the middle motor connection element 16c is only occupied on the circuit side, it can be designed for low currents.
- the switching element 4 of the electric motor M is designed, for example, in such a way that, due to its thermally contacting arrangement with the electric motor M, triggering takes place at a temperature of greater than 50 ° C., so that when the switching element 4 is triggered, the control circuit of the relay R1 and R2 and thus indirectly the voltage supply of the electric motor M is interrupted.
- the switching element 4 of the electric motor M protects it directly against sluggishness, blocking or overtemperature and responds in the event of a fault before the electrical system fuse 22 is triggered.
- the switching element 4 of the electric motor M Since the switching element 4 of the electric motor M is connected in the common negative line 20 of the two relays R1 and R2 of the speed stages ST1 and ST2, a triggering of the switching element 4 of the electric motor M also acts for the speed stages ST1 and ST2. After the fault has been eliminated, the circuit arrangement 14 is reactivated. The reversible switching element 4 is switched to the intended state, provided that one of the speed stages ST1 or ST2 is still activated by the associated closed switch S1 or S2, the electric motor M starts again.
- the positive pole "+" of the battery ie the positive line 18 is also connected directly to the circuits of the speed control in the speed stages ST1 and ST2 via the switching element 4 of the series resistor module 1 and thus carries voltage via the switching element 4 the series resistor module 1 both on the switch S1 and on the switch S2.
- a feed line can be saved.
- the switching element 4 of the series resistor assembly 1 responds, the circuit arrangement 14 is disconnected from the power supply.
- the electric motor M can then be operated neither in the lower speed stage ST1 nor in the maximum speed stage ST2.
- This feedback line 24c is discharged from the middle motor connection 16c and is in normal operation via the switching element 4 of the electric motor M on the minus pole "-" of the minus line 20. If the switching element 4 of the electric motor M responds in the event of a fault, the third is located Feedback line 24c to positive potential. According to FIG. 7, this is only the case in both speed stages ST1 and ST2 and according to FIG. 8 in the lower speed stage ST1 if the switching element 4 of the series resistor module 1 has not triggered and thus there is no overloading of the series resistor 2, but only an error of the electric motor M.
- An error message may be output based on the level of the feedback line 24c via a control unit SG connected to the feedback line 24c, for example an engine control unit.
- a control unit SG connected to the feedback line 24c, for example an engine control unit.
- the operating state of the electric motor M and the fan can be detected via the correspondingly connected further feedback lines 24a and 24b.
- R1, R2 relays
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Fuses (AREA)
- Control Of Electric Motors In General (AREA)
- Details Of Resistors (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006508183A JP4495150B2 (ja) | 2003-06-05 | 2004-05-19 | 電動機のための直列抵抗アッセンブリおよび電動機を駆動するための直列抵抗アッセンブリを有する回路配置 |
EP04739266A EP1634367A1 (de) | 2003-06-05 | 2004-05-19 | Vorwiderstandsbaugruppe zum betreiben eines elektromotors |
US10/559,475 US7705549B2 (en) | 2003-06-05 | 2004-05-19 | Series resistor assembly for an electric motor, circuit arrangement comprising a series resistor assembly for operating an electric motor and use of said assembly |
BRPI0411096-0A BRPI0411096A (pt) | 2003-06-05 | 2004-05-19 | módulo de resistência de entrada para um motor elétrico e disposição de circuito com um módulo de resistência de entrada para operação de um motor elétrico bem como emprego de um módulo de resistência de entrada |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10325761A DE10325761A1 (de) | 2003-06-05 | 2003-06-05 | Vorwiderstandsbaugruppe für einen Elektromotor und Schaltungsanordnung mit ein er Vorwiderstandsbaugruppe zum Betreiben eines Elektromotors sowie Verwendung einer Vorwiderstandsbaugruppe |
DE10325761.6 | 2003-06-05 |
Publications (1)
Publication Number | Publication Date |
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WO2004109902A1 true WO2004109902A1 (de) | 2004-12-16 |
Family
ID=33482654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2004/005420 WO2004109902A1 (de) | 2003-06-05 | 2004-05-19 | Worwiderstandsbaugruppe für einen elektromotor und schaltungsanordnung mit einer vorwiderstandsbaugruppe zum betreiben eines elektromotors sowie verwendung einer vorwiderstandsbaugruppe |
Country Status (6)
Country | Link |
---|---|
US (1) | US7705549B2 (de) |
EP (1) | EP1634367A1 (de) |
JP (1) | JP4495150B2 (de) |
BR (1) | BRPI0411096A (de) |
DE (1) | DE10325761A1 (de) |
WO (1) | WO2004109902A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109921701A (zh) * | 2019-03-13 | 2019-06-21 | 浙江达峰科技有限公司 | 一种直流电动机控制电路及其控制方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005030539A1 (de) * | 2005-06-30 | 2007-01-04 | Robert Bosch Gmbh | Schutzschaltung und Verfahren zur Überwachung der Temperatur eines Vorwiderstands |
DE112006004121A5 (de) * | 2006-09-06 | 2009-08-27 | Siemens Aktiengesellschaft | Schutzschaltung zum Schutz eines Geräts, insbesondere eines Elektromotors, vor einer thermischen Überlastung |
EP1983319A1 (de) * | 2007-04-20 | 2008-10-22 | Siemens Aktiengesellschaft | Temperaturerfassungsvorrichtung |
US9667188B2 (en) * | 2011-04-05 | 2017-05-30 | Belimo Holding Ag | Flow control actuator |
US10367396B2 (en) | 2012-09-03 | 2019-07-30 | Johnson Electric International AG | Fuse component and electric motor incorporating the same |
CN103683680B (zh) * | 2012-09-03 | 2018-09-25 | 德昌电机(深圳)有限公司 | 电机及使用该电机的汽车冷却风扇 |
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DE2655574A1 (de) * | 1976-12-08 | 1978-06-15 | Bosch Siemens Hausgeraete | Drehzahlveraenderbarer elektromotorischer antrieb, insbesondere fuer hausgeraete, wie teigruehrer o.dgl. |
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DE2838716C3 (de) * | 1978-09-02 | 1981-08-13 | Satchwell Birka Regelungstechnik Gmbh, 5630 Remscheid | Elektrische Schaltungsanordnung zum Betrieb eines mit Wechselspannung gespeisten Elektromotors |
DE3342031B4 (de) | 1982-11-23 | 2005-01-13 | Papst Licensing Gmbh & Co. Kg | Schaltungsanordnung zur Drehzahlsteuerung eines Elektromotors |
JPS6043117A (ja) * | 1983-08-18 | 1985-03-07 | Nissan Motor Co Ltd | エンジン用沸騰冷却系のアイドリング温度制御装置 |
DE3534500A1 (de) * | 1985-09-27 | 1987-04-02 | Porsche Ag | Ueberlastschutz fuer vorwiderstaende von elektromotoren, insbesondere von elektromotorisch angetriebenen lueftergeblaesen von fahrzeugen |
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DE19754981A1 (de) * | 1997-12-11 | 1999-06-17 | Abb Patent Gmbh | Elektronischer Installationsschalter |
DE19904575C1 (de) | 1999-02-04 | 2000-03-30 | Siemens Ag | Temperaturgeschützter Halbleiterschalter mit Temperatursensor und zusätzlichem Ladungsträger-Detektor, der eine echte Übertemperatur von einer vermeintlichen unterscheidbar macht |
DE10065193B4 (de) * | 2000-12-19 | 2014-03-20 | Behr France Rouffach S.A.S. | Elektrische Leistungssteuereinheit für einen Gebläsemotor |
DE10108548A1 (de) | 2001-02-22 | 2002-09-26 | Siemens Ag | Stellvorrichtung für einen Motor |
-
2003
- 2003-06-05 DE DE10325761A patent/DE10325761A1/de not_active Withdrawn
-
2004
- 2004-05-19 EP EP04739266A patent/EP1634367A1/de not_active Withdrawn
- 2004-05-19 BR BRPI0411096-0A patent/BRPI0411096A/pt not_active IP Right Cessation
- 2004-05-19 US US10/559,475 patent/US7705549B2/en not_active Expired - Fee Related
- 2004-05-19 WO PCT/EP2004/005420 patent/WO2004109902A1/de active Application Filing
- 2004-05-19 JP JP2006508183A patent/JP4495150B2/ja not_active Expired - Lifetime
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DE3711392C1 (de) * | 1987-04-04 | 1989-01-12 | Behr Thomson Dehnstoffregler | Kuehleinrichtung fuer eine Brennkraftmaschine und Verfahren zur Steuerung einer solchen Kuehleinrichtung |
DE4201594A1 (de) * | 1992-01-22 | 1993-07-29 | M U T Elektronische Und Elektr | Transistorsteuerung fuer ein lueftergeblaese |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109921701A (zh) * | 2019-03-13 | 2019-06-21 | 浙江达峰科技有限公司 | 一种直流电动机控制电路及其控制方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4495150B2 (ja) | 2010-06-30 |
US20060291821A1 (en) | 2006-12-28 |
US7705549B2 (en) | 2010-04-27 |
DE10325761A1 (de) | 2004-12-23 |
EP1634367A1 (de) | 2006-03-15 |
JP2006526973A (ja) | 2006-11-24 |
BRPI0411096A (pt) | 2006-07-18 |
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