DE4019787A1 - Electrical motor drive window winding unit - has integrated control unit that is located in sealed housing - Google Patents

Abstract

A seated module is used for a motor driven window operating mechanism in road vehicles. The unit has a shaped housing that receives the plug in control module (4). The module has a registration element (100) and once located is sealed against entry of moisture. The housing supports a drive motor (21) with a shaft (23) that has a speed transducer (30) to provide a duel input to the control unit. The control unit is based upon a microcomputer (4) and has an output drive stage. ADVANTAGE - Provides plug in control unit to main drive housing.

Description

The invention relates to an electromotive window lifter according to the preamble of claim 1.

For lifting and lowering window panes of a motor vehicle Electromotive window regulators are known to be used for Installation in doors of motor vehicles are suitable and egg  ne drive unit in the form of an electric motor with attached have closed gear or a geared motor, the via a switch to a motor vehicle battery can be connected.

The one in the vehicle door over the electromotive fen The window pane can be lifted or lowered at its lower edge on a guide carriage Stigt that along a profile rail, for example closed rope loop can be moved up and down. The Rope loop wraps around a rope drum which, for example, a worm gear from the electric motor in a com compact drive unit that is driven in addition to the Electric motor and the worm gear the rope drum contains and on supporting parts of the interior of the vehicle door or a base plate as well as the profile rail is attached.

Alternatively, the drive unit can be actuated a cross arm window regulator.

Because different forces for lifting and lowering the fen the drive unit is included a control and regulation circuit, which is operated with a voltage switch is connected, and if necessary with a turn number sensor connected. Depending on the position and type of actuation the operating switch is the window pane up to raised or lowered to their end positions or ver waits in any intermediate position, the Control and regulating electronics an even lifting and Lowering process.  

Fig. 1 shows a schematic representation of a known arrangement of an electric motor window regulator and a control and regulating circuit in a motor vehicle door.

In this known arrangement, the drive unit consists of a geared motor 2 with an electric motor 21 and a connected gear 22 , which is connected in a manner not shown with the cable loop for lifting and lowering the window pane. The rotor shaft 23 is mechanically coupled to a speed sensor 3 , which is connected via a cable line to the control and regulating circuit 4 arranged in a separate housing. The control and regulating circuit 4 is connected via a line 41 to a plug contact 24 for supplying power to the electric motor 21 . A line 42 leads via a plug contact to the operating switch in the vehicle interior and via a line 44 to the motor vehicle battery 45 .

As can be seen from the arrangement shown schematically in FIG. 1, the drive unit 2 and the control and regulating electronics 4 are arranged in separate housings, which must necessarily be designed to be essentially moisture-proof; ie water vapor must be able to escape from the system, while liquid in the form of, for example, rainwater cannot enter through the membrane. Between the separate housings, a plurality of cable connections 40 , 41 , 42 for the power supply to the electric motor 21 and for speed detection for the connection between the speed sensor 3 and control and regulating electronics 4 are required. The connectors 24 , 43 as well as the housing for receiving the drive unit 2 and the control and regulating electronics 4 must be moisture-proof to avoid short circuits.

The separate arrangement of the drive unit 2 and control and regulating electronics 4 thus requires a high level of construction and a considerable effort in the production of cable connections between the two housings and arrangement of moisture-proof plugs and sockets. The cabling between the two housings entails the risk of errors in the production of the cable connections and, overall, entails high costs for the assembly of the electric motor window regulator.

Another problem is that the cables 40 , 41 , 42 move between the separate housings for receiving the control and regulating electronics on the one hand and the drive unit on the other hand in the motor vehicle door with a high degree of wetness, so that overall a high sealing effort must be operated .

Finally, in addition when attaching the housing the motor vehicle door requires a lot of work Lich, since two separate assembly processes are carried out must, d. H. separate angles for fastening the door wall and appropriate fasteners must be hen.

Another disadvantage of the known arrangement is in that the speed sensor separately on the housing of the An drive unit must be installed.  

An electrical machine is from DB-GM 87 12 863.2 known, the housing, end shields and includes a terminal box, a terminal block, Kabelzu guide openings and one with a seal Has clamp cover. To reduce the width of the electrical machine and to simplify ferti the terminal box of the well-known elek trical machine integral in one of the front La Gerschilde trained the electrical machine. Here the terminal box has one under the envelope of the man cavity of the bearing plate with a breakthrough in the end shield leading to the outside is releasably closed by the clamping cover.

The terminal cover of the known device is as rights kige plate formed and a seal integral with the Clamping lid connected. In addition, the terminal block is in tegral connected to the terminal cover and carries connection sockets or pins with cable lugs are connectable. The cable feed openings are in the Surface of the end shield embedded.

In this known device, the terminal box is indeed integral part of the end shields of the electrical machine, by laying down the arrangement of the terminal box in the end shields however, a fixed assignment of the terminal box to the electri machine specified that a variable arrangement of the Terminal box and thus the control electronics does not allow.

The present invention is based on the task reasons, an electric motor window at the beginning  to create the type mentioned, with a low Component and assembly costs excluding assembly errors is connected, which is high moisture-proof guaranteed without major sealing effort and a modular design allows for a drive unit with different, easily accessible and exchanges Control and regulation circuits for different Motor vehicle types and designs are connected can.

This task is characterized by the characteristic of Claim 1 solved.

The solution according to the invention ensures a low one Component and assembly costs excluding assembly errors, since no additional cabling between An drive unit and control and regulating circuit required are. By arranging all parts in a damp tight, common housing is no additional cher sealing effort required and it can be cheap Plug connections are used as they are exclusively are arranged in a watertight room.

An advantageous development of the Lö according to the invention solution is characterized in that the tax and re Gel electronics is arranged on a circuit board, which in a Connection part of the common housing can be used or a is pluggable, the board with a plug-in module is connectable in an opening of the connecting part of the common housing is insertable and plug contacts has that with corresponding mating contacts of  Drive unit can be connected and the insertion mo dul an Au close to the common housing has outer surface.

The modular structure enables the use of a be agreed drive unit for different motor vehicles types of tools and for different embodiments, where when adapting to the respective vehicle type and the type of execution caused by the control electronics becomes. So different electronic circuits like For example, anti-pinch circuits, electronic circuits for regulating the rising and falling of the window pane and Circuits for window pane control in connection with a central locking system are used. Care Guide elements in the housing opening and on the slide-in module dul for quick, secure assembly, with the contact Control and regulating electronics with the drive unit is made when inserting, so that the egg reverse polarity protection is given and secondly considerable time is saved during assembly.

In an alternative embodiment, the board is in the closable interior of the lid Connection part of the common housing can be used and a contact device with the counter contacts of the An drive unit connectable.

As an alternative to this, the board can be connected directly to Dec kel of the common housing and connected via a con clocking device with the mating contacts of the drive unit connectable.  

Also in this embodiment are of modular construction different board assemblies for different che vehicle types and different execution shapes possible, adapting to the respective Motor vehicle type and the type of execution by the under different control electronics of the boards is effected. At the same time it is ensured that at correspond accordingly compact construction an easy accessibility of the Connection part is guaranteed and by inserting each the desired control function can be.

The alternative connection of the circuit board with the cover he enables a simple and clear as well as space-saving arrangement.

Analogous to the arrangement of the control electronics on one thrust module can with the arrangement of the control and regulation electronics on a board by means of guide elements in the Interior of the connector for quick, safe Assembly are taken care of, the contacting of the tax and control electronics with the drive unit on slide the contact device of the circuit board into the appropriate counter contacts of the drive unit is made, so that, on the one hand, polarity reversal security is guaranteed and secondly, a minimal amount of time during assembly is guaranteed.

An advantageous embodiment of the Lö according to the invention solution is characterized in that the plug-in module egg NEN receiving part of the speed sensor, which at in  the plug-in module inserted into the common housing the rotor shaft of the geared motor connected encoder part of the Speed sensor contacted or the encoder part of the rotation face-to-face with the number sensor.

This development of the solution according to the invention facilitates Takes the speed query and saves the separate assembly a speed sensor and its connection with the tax and control electronics. The speed query can with or without a wall between the drive unit and the the control and regulating electronics receiving part of the ge common housing.

An advantageous development of the Lö according to the invention solution is characterized in that the plug-in module one receiving the control and regulating electronics thrust element that is on one side with the vertical the outer surface arranged to the right of the insert element that is and that one opposite the outer surface Has plug element, the receiving part of the speed contains sensors and the plug contacts, being in the outside area a current and signal bushing for connection the control and regulating electronics with a motor vehicle Accumulator and a control switch is arranged and being in a circumferential groove of the outer surface or in a Gradation of the outer surface uses a sealing ring is.

This training saves the connection of a Ka belbaumes on the drive unit or the gear motor on the other hand ensures perfect contact  tion for the power supply of the drive unit. About that correct speed detection is also made possible light, where no the correct detection of the speed impairing contact and connection problems to step.

An advantageous embodiment of the Lö according to the invention solution is characterized in that the plug-in element front, central stop surface for adjusting the Receiving parts of the speed sensor that to both Sides of the stop surface and to the stop surface subsequent plug contacts are arranged. It can the speed sensor either from a Hall sensor or a photoelectric or inductive sensor.

In this design there is a defined position of the speed sensors guaranteed and it becomes the prerequisite for non-contact speed detection created. About that Furthermore, this development claims the solution a minimal space, so that a total extremely compact unit is created.

Another advantageous embodiment of the fiction moderate solution is characterized in that at the Top and bottom of the slide-in element guide jumps are arranged diagonally offset from each other, the in corresponding guide grooves in the common housing are slidably guided.

The diagonally offset arrangement of guide elements the top and bottom of the insert element in connection  with corresponding guide grooves in the common Housing allows for easier assembly and secondly ensures that a defined location of the Insert module is ensured in the common housing. In addition, the guide elements for coding used for purposes, d. H. by a corresponding To order of the guide elements can assign certain Plug-in modules to ensure the common housing the so that an erroneous connection one for the be hitting drive unit not usable control and Control electronics is excluded.

Finally, another advantageous embodiment the inventive solution characterized in that all sealing surfaces trained in two-component technology det. This means that when spraying the individual Elements worked with the two-component technique and thus the arrangement of rubber seals saved.

Based on an execution shown in the drawing for example, the idea on which the invention is based are explained in more detail. Show it:

Figure 1 is a schematic representation of a known arrangement of an electromotive window regulator in a motor vehicle door.

Fig. 2 is a schematic representation of the inventive assembly of an electromotive window regulator with separate representation of the insertion module;

Fig. 3 is an end view of the plug-in module;

Fig. 4 is a plan view of the plug-in module;

Fig. 5 is a plan view of the drive unit of an electromotive window regulator with a connection part of an assembly arranged at right angles thereto

Fig. 6 is a side view with a partial section through the assembly taken along the line AA of Fig. 5.

Fig. 2 shows the inte grated in a common housing 1 consisting of a drive unit 21 and 22 and a plug-in module 5 , which contains the control and regulating electronics 4 and the contact device for the power supply of the drive unit and parts of the speed sensor.

As illustrated in FIG. 2, the plug-in module 5 is closed in the common housing 1 of the assembly, and is surrounded or closed by the latter when it is in a moisture-proof manner. Here, the plug-in module 5 is inserted in the space in the common housing 1 provided for the insertion opening to a given by a rib 100 stop. In the inserted state, the outer wall of the plug-in module 5 closes flush and moisture-proof with the common housing 1 so that the parts of the assembly lying in the interior of the common housing 1 are not exposed to moisture, but water vapor forming inside can escape at any time through the membrane .

Fig. 2 also shows in a separate representation the structure of the insert module 5 , which can be inserted in the direction of the two arrows in the corresponding insertion opening in the common housing 1 .

The slide-in module 5 consists of a slide-in element 6 , on which the control and regulating electronics 4 including a microcomputer 40 are arranged. The microcomputer 40 can be programmed in any way depending on the particular motor vehicle type in which the assembly is used. Perpendicular to the push-in element 6 is at one end face an outer wall 8 with the Einschubele element 6 is connected, the shear modulus 5 forms, in the inserted state of the on the outer terminal of the plug-in module 5 and flush forms with the outer housing wall of the common housing. 1

For moisture-proof closure, a circumferential seal 9 is provided in a gradation of the outer wall 8 , which prevents the penetration of moisture into the interior of the common housing 1 in the inserted state of the plug-in module 5 . A moisture-proof cable bushing 10 or a corresponding current or signal plug connection is provided in the outer wall 8 and establishes the connection both to the operating switch and to the power supply of the module shown in FIG. 2.

On the opposite end face of the insert element 6 , an extended plug-in element 7 is provided, which in the exemplary embodiment shown is designed in the region of the upper side of the insert module 5 as an extension of the upper side. The plug-in element 7 , the configuration of which can be seen in a details in FIGS . 3 and 4 described below, contains on the one hand the plug contacts 11 , 12 for the power supply of the drive unit and on the other hand as receiver parts 31 , 32 formed parts of the speed sensor.

To assemble the electromotive window regulator assembly with integrated control and regulating electronics and speed sensor, it is therefore only necessary to insert the plug-in module 5 in the direction of the arrow into the corresponding opening in the common housing 1 until a stop is provided, in this position a flush from closure of the outer surface 8 of the plug-in module 5 with the outer wall of the common housing 1 is given. In this position, both the contact for the power supply of the drive unit 2 arranged in the common housing 1 and a connection of the receiver parts 31 , 32 of the speed sensor arranged in the plug-in module are made to the encoder part 30 of the speed sensor connected to the rotor shaft 23 , so that correct speed detection is ensured is. This speed detection is carried out preferably without contact by means of Hall sensors or a photoelectronic or inductive detection device.

Fig. 3 shows an end view of the plug-in module 5 while in Fig. 4 is a plan view displayed on the Einschubmo dul 5.

The plug-in element 7 provided on the front side of a push-in module 5 contains a central stop surface for the adjustment of two Hall sensors 31 , 32 which are arranged on both sides of a rib 100 . You are on egg ner beveled surface 73 , 74 , which thus partially surround the encoder part 30 of the speed sensor for better electromagnetic connection.

Between the Hall sensors 31 , 32 , which thus form the receiver part of the speed sensor, and the rib 100 for adjusting the Hall sensors 31 , 32 , a positive and negative plug contact 11 , 12 are provided, with corresponding counter contacts when fully inserted A thrust module can be connected, which are connected to the power supply lines of the drive unit.

In the illustrated embodiment, the plug contacts 11 , 12 are designed as sockets into which the corresponding protruding plug contacts of the drive unit can be inserted. Of course, the plug contacts 11 , 12 on the plug-in module 5 can also be configured as plugs which can be plugged into corresponding sockets of the drive unit.

On the top and bottom of the insertion element 6 , guide webs 61 , 62 are arranged diagonally to one another, which slide in corresponding guide grooves in the housing opening of the common housing 1 and thus enable a safe and correct insertion of the insertion module 5 into the housing opening. With the help of the guide webs jamming when inserting the plug-in module 5 is prevented and thus creates a drawer effect, at the same time the guide webs 61 , 62 can also serve to code the plug-in module 5 , so that a microcomputer programmed in a certain way is only for a certain type drive unit can be used.

Fig. 5 shows a plan view of a variant of the solution to the invention OF INVENTION with an angled from the drive unit 21, 22 connecting portion 26 of the common housing 1.

In this embodiment, the circuit board for receiving the control and regulating electronics 4 is not inserted into the common housing 1 from one end side of the connecting part, but is inserted into the connecting part 26 through the open top or bottom side. A connection part 26, the closing lid 27 is selectively opened, lifted from or horizontally shifted, so that the interior of the connector member 26 is free to receive the board. 6

Alternatively, the board 6 can be attached directly to the inside of the cover 27 , which leads to a space-saving and clear arrangement.

Mating plug contacts (not shown in detail) in the connection part 26 are used to connect to a contact device 70 which has a plurality of contact pins which are connected to the control and regulating electronics 4 of the circuit board 6 .

After connecting the contact device 70 with the Ge gensteckkontatakte the connecting part 26 is closed again ver, a connected to the circuit board 6 current and signal bushing 10 in the closed state of the connection part 26 of the common housing 1 protrudes from an end wall of the connecting part 26 , so that the electrical cal connection to the circuit board 6 can be made via a wiring harness.

Fig. 6 illustrates in a side view with a partial section along the line AA of FIG. 5, the assignment of the drive unit 21 , 22 to the connecting part 26 of the common housing 1 and the arrangement of the circuit board 6 in the connecting part 26 and the current and signal guide 10 in connection with the placement of the circuit board 6 in the connecting part 26 .

From the above description of an embodiment game of the electromotive window according to the invention The closed, compact structure of the assembly is becoming increasingly popular pe clearly. In addition to a significantly easier assembly and reducing the fasteners of each Assembly parts become an absolute moisture protection targets and the possibility of wiring errors does. At the same time, the speed query becomes a control the drive unit when lifting and lowering the windows disc significantly relieved and avoided mistakes in the actual value acquisition of the speed occur.

The plug elements still required can be considered cheap Plugs run as they are in a complete watertight space are arranged so that Korrospro exude bleme.

Finally, due to the modular structure most electronics on the plug-in module  the, so that either pinch protection circuits or Re Gel circuits for raising and lowering the window panes as well as combined window pane controls with a Zen tral locking can be provided.

The invention is not restricted in its implementation to the preferred embodiment given above game. Rather, a number of variants are conceivable which of the solution shown also in principle make use of different types.

Claims (13)

1. Electromotive window regulator for installation in motor vehicle doors with a drive unit which is arranged in a substantially moisture-proof housing and can be controlled by control and regulating electronics, characterized in that the control and regulating electronics ( 4 ) in the housing ( 1 ) Drive unit ( 2 ) is arranged. 2. Electromotive window regulator according to claim 1, characterized in that the control and regulating electronics ( 4 ) is arranged on a circuit board ( 6 ) which can be inserted or inserted into a connecting part ( 26 ) of the common housing ( 1 ). 3. Electromotive window regulator according to claim 2, characterized in that the circuit board ( 6 ) is connected to a plug-in module ( 5 ) which can be inserted into an opening of the connecting part ( 26 ) of the common housing ( 1 ) and plug contacts ( 11 , 12 ) has, which can be connected to corresponding mating contacts of the drive unit ( 2 ) and that the plug-in module ( 5 ) has a tightly fitting surface ( 8 ) on the housing ( 1 ). 4. Electromotive window regulator according to one of the preceding claims, characterized in that the drive unit ( 2 ) is connected to a speed sensor ( 3 ; 30 , 31 , 32 ), which is also in the common, substantially moisture-proof housing ( 1 ) is arranged. 5. Electromotive window regulator according to claim 4, characterized in that the one plug-in module ( 5 ) has a receiving part ( 31 , 32 ) of the speed sensor ( 3 ), which is inserted into the common housing ( 1 ) with the plug-in module ( 5 ) rotor shaft (23) of the drive unit (2) transmitter part (30) connected to the contact of the speed sensor (3) or the transmitter part (30) opposed to the speed sensor (3) without contact. 6. Electromotive window regulator according to one of the preceding claims, characterized in that the circuit board ( 6 ) on one side with the perpendicular to the circuit board ( 6 ) arranged outer surface ( 8 ) of the plug-in module ( 5 ) is connected and that one of the outer surface che ( 8 ) opposite plug element ( 7 ) the receiving part ( 31 , 32 ) of the speed sensor ( 3 ) and the plug contacts te ( 11 , 12 ) contains that in the outer surface ( 8 ) of a plug-in module ( 5 ) a current and Signal implementation ( 10 ) for connecting the control and regulating electronics ( 4 ) with egg ner motor vehicle battery and a control switch is arranged and that in a circumferential groove of the outer surface ( 8 ) or in a gradation of the outer surface ( 8 ) a device ( 9 ) is used. 7. Electromotive window regulator according to claim 6, characterized in that the plug-in element ( 7 ) has an end-face, central stop surface ( 71 ) for adjusting the receiving parts ( 31 , 32 ) of the rotational speed sensor ( 3 ), which on both sides of a rib ( 100 ) and the subsequent to the rib ( 100 ) Steckkon contacts ( 11 , 12 ) are arranged. 8. Electromotive window regulator according to one of the preceding claims, characterized in that the speed sensor ( 3 ) from a magnet ( 30 ), the Hall sensor receiver ( 31 , 32 ) on both sides of the rib ( 100 ) of the plug element ( 7 ) are arranged and partially surround the magnet ( 30 ) connected to the rotor shaft ( 23 ), or consist of a photoelectric or inductive sensor, the sensor transmitter with the rotor shaft ( 23 ) and the sensor receiver with the plug-in element ( 7 ; 70 ) of the plug-in module ( 5 ) is connected, on the top and bottom of the insertion element ( 6 ) guide projections ( 61 , 62 ) are arranged diagonally offset from one another, which are slidably guided in corresponding guide grooves in the common housing ( 1 ). 9. Electromotive window regulator according to claim 2, characterized in that the circuit board ( 6 ) in the by means of a cover ( 7 ) closable interior of the connecting part ( 26 ) of the common housing ( 1 ) can be used and via a contact device ( 70 ) with the mating contacts the drive unit ( 2 ) can be connected. 10. Electromotive window regulator according to claim 2, characterized in that the circuit board ( 6 ) on the inside of the cover ( 7 ) is attached and can be connected via a contact device ( 70 ) to the mating contacts of the drive unit ( 2 ). 11. Electric window regulator according to claim 9 or 10, characterized in that the connecting part ( 26 ) of the common housing ( 1 ) is arranged perpendicular to the electric motor ( 21 ) and to the gearbox ( 22 ) of the drive unit ( 2 ). 12. Electromotive window regulator according to one of the preceding claims, characterized in that a with the circuit board ( 6 ) connected current and signal bushing ( 10 ) when inserted into the connecting part ( 26 ) board ( 6 ) through an end face of the connection part ( 26 ) protrudes. 13. Electric motor window according to one of the ahead outgoing claims, characterized net that all sealing surfaces in two components technology are trained.