Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
  • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
  • H02K15/0414—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils
  • H02K15/0421—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils consisting of single conductors, e.g. hairpins
  • H02K15/0428—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils consisting of single conductors, e.g. hairpins characterised by the method or apparatus for simultaneously twisting a plurality of hairpins
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
  • H02K15/06—Embedding prefabricated windings in machines
  • H02K15/062—Windings in slots; salient pole windings
  • H02K15/064—Windings consisting of separate segments, e.g. hairpin windings

Definitions

• the invention relates to a method for forming a conductor package from at least one conductor element group and inserting the conductor package into a laminated core, as well as a forming and inserting unit that is formed for this purpose.
• US 7,941,910 B2 describes a method for inserting conductor elements in a laminated core that has been provided.
• the conductor elements are inserted into a twisting device and shaped in it.
• the reshaped conductor elements located in the twist device are removed and held in their own clamping device for the insertion process in the laminated core.
• the Klemmvorrich device with the conductor elements received therein is moved away from the twisting device and brought into an axial alignment with respect to the laminated core provided. Once this is done, the free ends of the conductor elements are inserted into the receiving chambers of the laminated core provided for this purpose.
• the disadvantage here is the increased effort involved in providing a separate clamping device and the step of removing the reshaped conductor elements from the twisting device for the insertion process into the laminated core.
• the object of the present invention was to overcome the disadvantages of the prior art and to provide a method and a device by means of which a user is able to easily and securely position transfer of a reshaped conductor package composed of several conductor elements to be able to make in a sheet metal package.
• the method is used to form a conductor package comprising at least one conductor element group and insert the conductor package into a laminated core and thereby form a stator or rotor of an electrical machine, in which the following steps are carried out:
• first conductor element group with a plurality of essentially U-shaped first conductor elements, which conductor elements each cut a first rod, a second rod section and a first rod section of the first conductor element connecting the first rod section of the first conductor element - 2nd
• each first rod section of the first conductor element has a free first rod end and every second rod section of the first conductor element has a free second rod end, and the first connection sections are each arranged opposite the free rod ends of the first conductor elements,
• a forming and inserting unit comprising at least one forming and inserting tool, which at least one forming and inserting tool comprises at least one outer tool and at least one inner tool, and the forming and inserting tool defines a longitudinal axis, the outer tool viewed in the radial direction is arranged externally around the inner tool, and wherein at least one of the tools is designed to be rotatable about the longitudinal axis, and thereby
• the outer tool comprises a plurality of outer holding elements, which outer holding elements are arranged distributed over the circumference and furthermore in each case an outer receiving groove is arranged or formed between outer holding elements arranged immediately adjacent in the circumferential direction and on their end sections facing the longitudinal axis,
• the inner tool comprises a plurality of inner holding elements, wel che inner holding elements are arranged distributed over the circumference and furthermore an inner receiving groove is arranged or formed between in the circumferential direction immediately adjacent in neren holding elements and at their end sections facing away from the longitudinal axis, and
• At least the outer holding elements of the outer tool can be displaced in the radial direction from a clamping position closer to the longitudinal axis into a receiving position spaced from the longitudinal axis and into a release position further spaced from the longitudinal axis and vice versa,
• both the forming process of the conductor elements inserted in the forming and inserting tool and the transfer process and insertion process into the sheet stack provided can be carried out using only one forming and insertion tool. This eliminates the need to provide an additional clamping device for removing the reshaped conductor elements, which saves costs for the overall system. Furthermore, the efficiency of the forming and insertion process is also increased, since the additional removal step is no longer necessary. Due to the positioned holding of the conductor elements before the forming process of the same in - 4 -
• Forming and insertion tool the individual conductor elements are also already in the position and orientation determined for the subsequent insertion process in the receiving chambers of the laminated core. In this way, the risk of misalignment in the course of the additional process of removing the conductor elements from the twist device and taking them over from the clamping device can be avoided.
• combined work steps are thus carried out, namely the positioned, in particular clamped, holding of the conductor elements in the forming and insertion tool both during the forming process and in an unchanged position for the subsequent insertion process.
• a procedure is advantageous in which the inner holding elements of the inner tool move from a release position closer to the longitudinal axis in the radial direction and in the direction of the outer tool into a receiving position spaced apart from the longitudinal axis and into a positioning position further spaced from the longitudinal axis and vice-versa are relocatable.
• This also facilitates the insertion of the conductor elements in their receiving position, which forms an intermediate position, in the area of the inner holding elements and the internally arranged or defined inner receiving grooves.
• the conductor elements are held in such a position that the subsequent forming process and also the insertion process into the laminated core can be carried out properly.
• the laminated core together with the conductor elements inserted therein can then be removed from the forming and insertion tool easily and without collision.
• a further advantageous procedure is characterized in that a second conductor element group is provided with a plurality of second conductor elements, which second conductor elements are essentially U-shaped and each second conductor element cut off a first rod, a second rod section and a first rod section of the second Conductor element with the second rod section of the second conductor element connec denden second connecting section, and in each case one of the second conductor elements, at least when the outer receiving grooves are still in the receiving position, either with its first rod section in one of the outer receiving grooves and with its second rod section also in another the outer grooves or with its first rod section in one of the inner grooves and with its second Stabab section is also inserted into another of the inner grooves. This becomes the - 5 -
• the individual conductor elements of the second conductor element group are either inserted exclusively into the outer layer or into the outer layer or into the inner layer or inner layer in the forming and insertion tool.
• a variant of the method is also advantageous in which a third conductor element group is provided with a plurality of third conductor elements, which third conductor elements comprise an essentially straight third rod section, and one of the rod-shaped third conductor elements at least when it is still in the receiving position with external receiving grooves its third rod section is inserted either into one of the outer receiving grooves or into one of the inner receiving grooves.
• a third conductor element group is provided with a plurality of third conductor elements, which third conductor elements comprise an essentially straight third rod section, and one of the rod-shaped third conductor elements at least when it is still in the receiving position with external receiving grooves its third rod section is inserted either into one of the outer receiving grooves or into one of the inner receiving grooves.
• Another possible procedure is characterized when, with the outer holding elements in the clamping position, all the rod sections of the second conductor element group and / or the third conductor element group located in the outer grooves are positioned circumferentially by the outer holding elements arranged immediately adjacent in the circumferential direction , in particular clamped, who held the. As a result, all rods located in the outer grooves can be kept exactly positioned to one another from sections of the conductor elements.
• Another advantageous procedure is characterized in that the still undeformed conductor elements after being inserted into the respective receiving grooves of the forming and insertion tool and after the positioned, in particular clamped, holding of the rod sections in the respective outer receiving grooves on their from the direction of insertion in the forming and insertion tool side facing away from a counterholder in the Axialrich device are held positioned with respect to the forming and insertion tool.
• a counter holder By providing a counter holder, an additional possibility is created to be able to keep the second and third conductor elements guided and positioned in particular during the forming process of the entire conductor pack.
• the counter-holder is preferably arranged in a rotationally fixed or stationary manner in the circumferential direction with respect to the conductor elements to be reshaped, 6th
• a procedure is advantageous in which, with the rod sections of the conductor element groups held in position, the inner tool and the outer tool are rotated in opposite directions to each other about the longitudinal axis and the conductor elements are deformed in the process. This creates the possibility of being able to reshape the outer layer and the inner layer of the conductor package in different directions of inclination.
• a procedure is also possible and advantageous in which the counterholder remains unchanged in its position during the relative adjustment of the inner tool and the outer tool around the longitudinal axis, viewed in the circumferential direction, and is adjusted in the axial direction in the direction of the inner tool and the outer tool. This creates the possibility of being able to keep the conductor elements properly positioned during the entire forming process in the forming and insertion tool by means of the counter holder.
• Conductor elements are supported on the counter holder in the axial direction adjacent thereto. This ensures that all conductor elements of the conductor package can be safely inserted or pushed into the laminated core.
• Another advantageous procedure is characterized in that the outer tool and the inner tool are rotated jointly and synchronously about the longitudinal axis while the conductor elements are being inserted into the receiving grooves of the forming and insertion tool.
• the outer tool and the inner tool are rotated jointly and synchronously about the longitudinal axis while the conductor elements are being inserted into the receiving grooves of the forming and insertion tool.
• a variant of the method is also advantageous in which the number of inner receiving grooves is selected to be the same as the number of outer receiving grooves. In this way, the same number of inner receiving grooves and outer receiving grooves is always provided. - 7 -
• Another approach is characterized when the outer grooves of the outer tool and the inner grooves of the inner tool are each aligned opposite one another in the radial direction prior to inserting the Lei terimplantation into the inner tool and the outer tool.
• preformed conductor elements with rod sections running directly next to one another can be inserted simultaneously into an outer receiving groove of the outer tool and an inner receiving groove of the inner tool.
• first rod section and the second rod cut from each first conductor element in an outer receiving groove and an inner receiving groove aligned directly opposite each other in the radial direction. In this way, an alignment of the two rod sections of the first conductor elements in the forming and insertion tool running in the radial direction is achieved.
• a variant of the method is also advantageous in which when the outer holding elements of the outer tool are in the clamping position and their outer end faces facing the inner tool and when the inner holding elements of the inner tool are in the positioning position and their inner end faces facing the outer tool end between the outer ends and the inner end ends, a radial gap is IN ANY.
• Another advantageous procedure is characterized in that when inserting the conductor elements into the receiving grooves of the Elmform- and insertion tool, the axial excess of the conductor elements is limited by means of a stop device before the position of the conductor elements positioned, in particular clamped, in the circumferential direction. In this way, an exact axial longitudinal alignment of the individual conductor elements can be ensured during the insertion of the same into the receiving grooves that are still in the receiving position.
• a variant of the method is also advantageous in which, after the conductor elements have been formed, the stop device is adjusted away from the conductor elements and the conductor elements protrude freely from the elm forming and insertion tool. This completely releases the free ends of the individual conductor elements for the insertion movement of the conductor package into the laminated core.
• a variant of the method is also advantageous in which the laminated core with its receiving chambers is pushed onto the conductor elements protruding from the outer tool and inner tool to form the stator or rotor.
• the process of inserting the conductor elements held in position in the forming and insertion tool into the laminated core can be carried out more easily.
• Another approach is characterized by the fact that after the insertion of the conductor elements into the laminated core, the inner holding elements of the inner tool are also adjusted to their release position so that the rods located in the inner grooves are also released from sections of the conductor elements by the inner holding elements . This enables the reshaped conductor elements to be easily released from the reshaping and insertion tool after they have been inserted into the laminated core.
• a forming and insertion unit for forming a conductor package provided for insertion into a laminated core, comprising at least one conductor element group from a plurality of conductor elements.
• the conductor package provided can be inserted into the laminated core to form a stator or rotor of an electrical machine.
• the forming and inserting unit comprises at least one forming and inserting tool
• the outer tool comprises a plurality of outer holding elements, wel che outer holding elements are arranged distributed over the circumference and furthermore an outer receiving groove is arranged or formed between in the circumferential direction immediately adjacent outer holding elements and on their end sections facing the longitudinal axis, the outer Grooves are each designed to receive at least one rod from the section of the conductor elements, and further
• At least the outer holding elements of the outer tool can be displaced in the radial direction from a clamping position closer to the longitudinal axis into a receiving position spaced apart from the longitudinal axis and into a release position further spaced from the longitudinal axis and vice-versa, with those in the outer position in the clamping position -
• Outer grooves can be accommodated rod sections of the conductor elements positioned, in particular clamped, can be held,
• the inner tool comprises a plurality of inner holding elements, wel che inner holding elements are arranged distributed over the circumference and furthermore an inner receiving groove is arranged or formed between inner holding elements arranged immediately adjacent in the circumferential direction and on their end sections facing away from the longitudinal axis, the inner receiving grooves are each designed to accommodate at least one rod from the section of the conductor elements,
• the outer tool is arranged on the outside around the inner tool when viewed in the radial direction
• At least one of the tools is designed to be rotatable about the longitudinal axis, and an insertion device, by means of which the insertion device can be used to insert the rods that can be received in the receptacles from the conductor elements directly into the laminated core to form the stator or rotor.
• the advantage achieved in this way is that by means of only one forming and inserting tool, both the forming process of the lines inserted in the forming and inserting tool 10
• outer receiving grooves of the outer tool and the inner receiving grooves of the inner tool are arranged in relation to one another in a common plane which is oriented in normal alignment with respect to the longitudinal axis. In this way, a positioned holder for the conductor elements in the forming and insertion tool can be created without tilting and pivoting relative to one another.
• another embodiment is characterized in that a counter holder is provided, on which counter holder the conductor elements which can be received in the respective receiving grooves of the forming and insertion tool can be supported in the axial direction. This ensures that all conductor elements of the conductor package can be safely inserted or pushed into the laminated core.
• 1 shows a laminated core with a conductor core inserted therein and already reshaped to form a stator or rotor, in a diagrammatic representation
• Fig. 2 shows a first conductor element for forming the conductor package, in a diagrammatic presen- tation
• Fig. 3 shows a second conductor element for forming the conductor package, in a perspective Dar position
• Fig. 4 shows a third conductor element for forming the conductor package, in a diagrammatic presen- tation
• 5 shows a partial area of the forming and inserting tool of the forming and inserting unit, with the holding elements located in the respective release position, in a diagrammatic representation
• 6 shows the partial area of the forming and insertion tool according to FIG. 5, with the holding elements located in the respective receiving position, as well as some already inserted conductor elements, in a diagrammatic representation
• FIG. 7 shows a partial section of the forming and insertion tool according to FIGS. 5 and 6, with the holding elements in the receiving position, in a plan view; 8 shows the partial section of the forming and insertion tool according to FIG. 7, but with some conductor elements already inserted into the receiving grooves and shown in section, in a plan view;
• FIGS. 7 and 8 show the partial section of the forming and insertion tool according to FIGS. 7 and 8, with the holding elements in the clamping and positioning position, in a plan view;
• FIGS. 7 to 9 shows the partial section of the forming and insertion tool according to FIGS. 7 to 9, with holding elements already partially displaced relative to one another in the circumferential direction, in plan view;
• 11 shows the forming and inserting tool with counter holder and stop device, with the still undeformed Lei ter elements inserted in the forming and inserting tool, in a view; 12
• FIG. 12 shows the forming and inserting tool with counter holder and stop device according to FIG. 11, with conductor elements formed in the area of the counter holder, in a view;
• FIG. 13 shows the forming and inserting tool with a counter holder and already removed stop device and the conductor package positioned in the forming and inserting tool before inserting it into the sheet package provided, in a view;
• Fig. 14 the forming and insertion tool with counter holder and already fully inserted system conductor package in the laminated core, when removing from the forming and insertion tool, in view.
• the same parts are provided with the same reference numerals or the same component designations, and the disclosures contained in the entire description can be transferred accordingly to the same parts with the same reference numerals or the same component names.
• a laminated core 1 is shown in simplified form, in which a plurality of receiving chambers 2 distributed over the circumference are arranged or formed.
• the laminated core 1 has a first end face 4 and a second end face 5 spaced apart from one another in the direction of its longitudinal axis 3 or the laminated core 1 is delimited in its longitudinal extent by the two end faces 4, 5.
• the receiving chambers 2 each extend between the first end face 4 and the second end face 5, preferably continuously.
• a reshaped conductor pack 6 has already been inserted into the laminated core 1 shown here, the reshaping and insertion of the conductor packet 6 into the laminated core 1 is described in more detail below. - 13 -
• the conductor package 6 can comprise at least one, but preferably several conductor element groups.
• a first conductor element group 7, a second conductor element group 8 and a third conductor element group 9 are provided. It should be noted that at least one of the conductor element groups 7, 8, 9 is provided, and the number of conductor element groups can be selected as desired.
• Each of the conductor element groups 7, 8, 9 in turn comprises several conductor elements, of which in FIGS. 2 to 4 each have a possible initial shape prepared for the order forming process.
• the first conductor element group 7 comprises a plurality of first conductor elements 10
• the second conductor element group 8 comprises a plurality of second ones
• Conductor elements 11 and the third conductor element group 9 comprises a plurality of third conductor elements 12
• the conductor package 6 comprises an outer or first layer 13 and a second layer 14 located within the first layer 13 in the radial direction for this purpose.
• the laminated core 1 with the conductor package 6 can form a stator or a rotor for an electrical cal machine.
• a stator is shown and be written, the method described below for forming the conductor package 6 and the insertion of the conductor package 6 in the laminated core 1 in the formation of the stator or the rotor can be used.
• 2 to 4 show possible designs of mostly pre-deformed and / or pre-assembled conductor elements 10, 11, 12 in the starting position, which can be used to form the conductor package 6.
• slight dimensional deviations can occur or are selected for the individual conductor elements 10, 11, 12 belonging to each of the conductor element groups 7, 8, 9 with fundamentally the same basic shape - 14 - will be. This can be the case, for example, because of the receiving chambers 2 in the laminated core 1, which are aligned in the radial direction.
• the first conductor element 10 is shown, which is designed as a so-called U-pin or hairpin.
• the conductor element 10 has a substantially U-shaped longitudinal course and comprises a first rod section 15, a second rod section 16 and a first connection section 17.
• the connection section 17 provides the connection between the first rod section 15 and the second rod section 16 of each conductor element 10 represents or trains them.
• Each first rod section 15 has a free first rod end 18 and every second rod section 16 has a free second rod end 19.
• the connecting sections 17 are each arranged opposite the free rod ends 18, 19.
• the previously described receiving chambers 2 of the laminated core 1 are used to take on the respective rod from sections 15, 16 of the first conductor elements 10 or are seen in front of it.
• the two rod sections 15, 16 are aligned running parallel to one another and are arranged directly adjacent to one another.
• the second conductor element 11 for forming the second conductor element group 8 is shown, which is also designed as a so-called U-pin or hairpin.
• the second conductor elements 11 are also essentially U-shaped and comprise a first rod section 20, a second rod section 21 and a second connecting section 22 connecting the first rod section 20 of the second conductor element 11 to the second rod section 21 of the second conductor element 11.
• the free rod ends the respective rod sections 20, 21 are no longer provided separately with a reference number.
• the previously described receiving chambers 2 of the laminated core 1 also serve to accommodate the respective rod from sections 20, 21 of the second conductor elements 11 or are provided for this purpose.
• the two rod sections 20, 21 are also aligned parallel to one another, but are arranged at a distance from one another. The distance is chosen so that it is mostly a multiple of the receiving chambers 2 of the laminated core 1, which are arranged directly one behind the other in the circumferential direction.
• the third conductor element 12 for forming the third conductor element group 9 of the conductor package 6 is shown.
• the third conductor elements 12 have an essentially straight - 15 - nig extending third rod section 23 and are also referred to as so-called I-pins. These are mostly used for external contacting of the conductor package 6 with an electrical supply unit, not shown in detail.
• a forming and inserting unit 24 with at least one forming and inserting tool 25 is shown in simplified form for better visualization and illustration of the process steps.
• the forming and inserting unit 24 For inserting or joining the conductor elements 10, 11, 12 into the laminated core 1, the forming and inserting unit 24 is provided, which among other things includes at least one forming and inserting tool 25.
• the conductor elements 10, 11, 12 are inserted into the forming and insertion tool 25 by means of a gripper or gripping device (not shown), the individual conductor elements 10, 11, 12 each individually and / or in groups in the forming and insertion tool 25 of the forming - and insert unit 24 can be inserted.
• the sequence in which the conductor elements 10, 11, 12 are inserted into the forming and insertion tool 25 is stored in a control device depending on the intended arrangement of the same in the laminated core 1.
• the insertion of the conductor elements 10, 11, 12 in the order forming and insertion tool 25 can also be done by means of a joining device or a joining tool.
• the forming and inserting tool 25 comprises at least one outer tool 26 and at least one inner tool 27, a centrally arranged longitudinal axis 28 being defined by the forming and inserting tool 25.
• the outer tool 26 is arranged on the outside around the inner tool 27 as seen in the radial direction.
• at least one of the tools 26, 27 is designed to be rotatable about the longitudinal axis 28.
• Both work tools 26, 27 are preferably designed to be rotatable about the longitudinal axis 28, it also being possible for a mutually opposite adjustment movement during the forming process of the conductor elements 10, 11, 12 to take place. So that each held by the tools 26, 27 held rod from sections 15, 16; 20, 21; 23 are deformed in a mutually opposite direction of inclination.
• the outer tool 26 comprises a plurality of outer holding elements 29 which are arranged distributed over the circumference.
• the outer holding elements 29 are finger-like remplibil det.
• an outer receiving groove 30 is formed between the outer holding elements 29 arranged immediately adjacent in the circumferential direction - 16 - provided.
• the individual outer grooves 30 can be formed, for example, by free positions in the end section facing the longitudinal axis 28. This is best seen in FIGS. 7-10.
• the inner tool 27 for its part comprises a plurality of inner holding elements 31, which are also arranged distributed over the circumference.
• an inner receiving groove 32 is formed or provided between the inner holding elements 31 arranged immediately adjacent in the circumferential direction.
• the formation of the inner receiving grooves 32 can e.g. by means of clearances in the end section facing away from the longitudinal axis 28.
• outer receiving grooves 30 and also the inner receiving grooves 32 are preferably each formed by the clearances located in the outer corner area of the respective holding element 29 or 31.
• Each of the holding elements 29 or 31 thus has one of the clearances on both sides of its further holding elements 29 or 31, which are located immediately adjacent to the respective in the circumferential direction.
• the holding elements 29 and 31 are, as can be seen in particular from FIGS. 5 to 14, when viewed in the radial direction are arranged directly opposite one another.
• An offset in the axial direction is not provided between the outer holding elements 29 and the inner holding elements 31.
• the holding elements 29 and 31 are arranged in a common plane in a plane which is in a normal alignment with respect to the longitudinal axis 28. This normal plane can, for example, be defined by a support plate or a support table.
• the outer grooves 30 and the inner grooves 32 can also be directed or arranged directly opposite one another when viewed in the radial direction.
• At least the outer holding elements 29 of the external tool 26 can be displaced in the radial direction from a clamping position closer to the longitudinal axis 28 into a receiving position spaced apart from the longitudinal axis 28 and into a release position further spaced from the longitudinal axis 28, and vice versa .
• the inner holding elements 31 of the inner tool 27 also move from a release position closer to the longitudinal axis 28 in the radial direction as well as in the direction of the outer tool 26 into a receiving position spaced from the longitudinal axis 28 and into an even further from the longitudinal axis 28 spaced positioning and vice-versa are displaceable. It would also be possible to also provide a clamped holder for the conductor elements 10, 11, 12 located in the respective inner receiving grooves 32 in the inner holding elements 31 and the inner receiving grooves 32 defined by them, analogous to the outer holding elements 29.
• the outer holding elements 29 of the outer tool 26 must be shifted into their receiving position.
• the inner holding elements 31 are also displaced into their receiving position.
• the receiving grooves 30, 32 have a somewhat enlarged cross-sectional area in order to create sufficient play for insertion.
• the inner rod section 16 is inserted into one of the inner receiving grooves 32.
• the two rod sections 15, 16 are arranged to run directly next to one another in this design of the first Leiterele element 10. Therefore, the first rod section 15 and the second rod section 16 of each first Lei terelements 10 is inserted into an outer receiving groove 30 and inner receiving groove 32, which are directed directly opposite one another in the radial direction.
• the tools 26, 27 of the forming and insertion tool 25 are still in their receiving position.
• the second conductor elements 11 are U-shaped and can with their second connecting sections 22 span or overlap the first conductor elements 10 on the side facing away from the tools 26, 27.
• the second conductor elements 11 are provided with their two rod sections 20, 21, respectively - 18 - to be inserted in only one of the two layers 13 or 14 and thus either only in the outer receiving grooves 30 or in the inner receiving grooves 32.
• the insertion can take place in turn by means of grippers or gripping devices, which are not shown in detail.
• the third conductor element group 9 with its third conductor elements 12 is mainly used for external contacting of the conductor package 6.
• Each of the third conductor elements 12 is inserted either into one of the outer receiving grooves 30 or one of the inner receiving grooves 32. This is also the case when the tools 26, 27 with their receiving grooves 30, 32 are in the receiving position.
• first rod sections 15 of the first conductor elements 10 located in the outer receiving grooves 30 are positioned in the circumferential direction, in particular clamped, by the outer holding elements 29 arranged immediately adjacent in the circumferential direction.
• the clamping forces exerted in the circumferential direction on the respective conductor element 10, 11, 12 by the outer holding elements 29 directly adjacent in the circumferential direction are indicated in FIG. 9 by arrows “F” pointing towards one another.
• all of the conductor elements 10, 11, 12 are preferably located in the forming and insertion tool 25, all of the conductor elements 10, 11, 12 located in the outer receiving grooves 30 with their respective rod sections 15; 20, 21; 23 positioned in the circumferential direction, in particular special clamped, held.
• the inner holding elements 31, which can be displaced in the radial direction, are also displaced from their receiving position to their positioning position in order to achieve better and more precise positioning of those conductor elements 10, 11, 12 forming the inner layer 14.
• the outer holding elements 29 each have an outer face end 35 on their side facing the inner tool 27.
• the inner holding elements 31 each have an inner face end 36 on their side facing the outer tool 26. If the outer holding elements 29 are in their clamping position and the inner holding elements 31 are in their positioning position, a circumferential radial gap is present between the outer end faces 35 and the inner end faces 36. - 19 -
• At least one counter holder 33 can also be provided, by means of which the still undeformed conductor elements 10, 11, 12 after insertion into the respective receiving grooves 30, 32 of the forming and insertion tool 25 and also after the positioned, in particular clamped, Holding the individual rod sections 15, 20, 21, 23 in the respective outer receiving grooves 30 on their side facing away from the direction of insertion into the forming and insertion tool 25 are additionally kept positioned.
• the counter holder 33 is used for support and guidance in the axial direction and for the subsequent implementation of the forming process of the two layers 13, 14 and can be seen in FIGS. 11 to 14.
• the counter holder 33 can be provided with slots, grooves, depressions, recesses or the like, which are attached to the arrangement and the conductor elements 10, 11, 12 to be supported on the counter holder 33 or to be received in the counter holder 33 are adapted.
• the conductor elements 10, 11, 12 located in the two layers 13, 14 are preferably formed by means of the outer tool 26 and the inner tool 27 in opposite directions and thus brought into an inclined position with respect to the longitudinal axis 28.
• the counter-holder 33 remains unchanged in its position during the rela tive adjustment of the outer tool 26 and the inner tool 27 about the longitudinal axis 28 in the circumferential direction.
• the counter holder 33 can also be adjusted in the axial direction towards the inner tool 27 and the outer tool 26.
• a stop device 34 can be provided, which is shown in FIGS 11 and 12 is indicated.
• the process of inserting the conductor elements 10, 11, 12 into the respective receiving grooves 30, 32 of the forming and inserting tool 25 can be facilitated, since in this way an unintentional falling through the tools 26, 27 can be prevented.
• the outer grooves 30 of the outer tool 26 and the inner grooves 32 are each aligned in the radial direction ge opposite one another. Furthermore, it can be provided that the total number of outer receiving grooves 30 is the same as the total number of inner receiving grooves 32 is selected. Furthermore, the circumferential division of the receiving grooves 30, 32 is to be coordinated with the division of the receiving chambers 2 located in the laminated core 1 and to be adapted accordingly in the design.
• the outer tool 26 and the inner tool can during the insertion of the conductor elements 10, 11, 12 into the receiving grooves 30, 32 of the forming and insertion tool 25 27 are rotated together and synchronously about the longitudinal axis 28.
• the outer receiving grooves 30 of the outer tool 26 and the inner receiving grooves 32 of the inner tool 27 are preferably arranged opposite one another in a common plane oriented in a normal orientation with respect to the longitudinal axis 28.
• the reshaped conductor elements 10, 11, 12 are then directly inserted or inserted into the respective receiving chambers 2 of the laminated core 1 provided by means of the reshaping and insertion tool 25 without any transfer to another tool 1.
• the conductor elements 10, 11, 12 in particular the first conductor elements 10 with their free rod ends 18, 19, as well as all other conductor elements 11, 12 with their unspecified free rod ends, inserted into the lamination core 1 provided for this purpose.
• the forming and insertion tool 25 is preferably held unchanged and the laminated core 1 with its receiving chambers 2 is pushed onto the conductor elements 10, 11, 12 protruding from the outer tool 26 and inner tool 27 to form the stator or rotor.
• the formed and positioned in the forming and inserting tool 25 can be held in place in the forming and insertion tool 25 Lei terieri 10, 11, 12 these can be supported on the counter holder 33 in the axial direction. If the insertion process has been carried out to such an extent that the conductor elements 10, 11, 12 of the Lei terpaktes 6 are predominantly in length in the respective receiving chambers 2 of the laminated core 1, one of the end faces 4 or 5 is immediately adjacent to the outer tool 26 and inner tool 27 or respectively their holding elements 29, 31 are arranged. Sufficient longitudinal guidance of the conductor elements 10, 11, 12 in the laminated core 1 is thus achieved.
• the conductor elements 10, 11, 12 held in position in the forming and insertion tool 25 are then released by adjusting at least the outer holding elements 29 of the outer tool 26 in their release position. This releases at least those conductor elements 10, 11, 12 which have been previously positioned, in particular clamped, held by the outer holding elements 29.
• the inner Hal teopathy 31 of the inner tool 27 can be adjusted in their release position. So who the also located in the inner grooves 32 rod from sections 16, 20, 21, 23 of the conductor elements 10, 11, 12 of the inner holding elements 31 released. In this case, when the outer holding elements 29 are in the release position and the inner holding elements 31 are in the release position, the conductor elements 10,
• the chronological sequence of the individual work steps described above comprises at least the adjustment of at least the outer holding elements 29 of the outer tool 26 in their receiving position, the subsequent insertion of the conductor elements 10, 11, 12 into the receiving grooves 30, 32 of the forming and insertion tool 25, adjusting the outer retaining elements 29 of the outer tool 26 from their receiving position to their clamping position, performing the forming process of the conductor elements 10, 11, 12, keeping the inner tool 27 and the outer tool 26 in a position relative to one another, inserting the still in the forming process and insertion tool 25 located conductor elements 10, 11, 12 in the laminated core 1.
• the possible additional work steps are to be carried out in a corresponding chronological order.
• the forming and insertion unit 24 at least one separate joining station and / or its own forming station and / or its own insertion station, which eg around a turntable or one
• Swivel table are arranged distributed. If this is provided, several forming and A setting tools 25 are to be provided, which are transported by means of the turntable from one workstation to the next workstation.
• the conductor elements 10, 11, 12 are inserted into the respective tools 26, 27 (external tool and internal tool) provided for this purpose and then transported on to the forming station.
• the conductor elements 10, 11, 12 are reshaped, preferably in cooperation with the counter holder 33.
• the wire elements 10, 11, 12 can be transported further to the insertion station, in which the wire package 6 from the wire elements 10, 11, 12 that is still in the tool unit comprising the outer tool 26 and the inner tool 27 is transferred to the Laminated core 1 is used.
• the forming and inserting unit 24 serves to form a conductor package 6 provided for insertion into a laminated core 1.
• the conductor package 6 comprises several conductor element groups 7, 8, 9 each comprising several conductor elements 10, 11, 12.
• the forming and inserting unit 24 comprises at least a forming and insertion tool 25 comprising at least one external tool 26 and at least one internal tool 27.
• the outer tool 26 for its part comprises a plurality of outer holding elements 29 which are arranged distributed over the circumference. Furthermore, in each case an outer receiving groove 30 is arranged or formed between the outer Hal teiatan 29, which are arranged directly adjacent in the circumferential direction, and on their end sections facing the longitudinal axis 28.
• the outer holding elements 29 can also be displaced in the radial direction from a clamping position closer to the longitudinal axis 28 into a receiving position spaced apart from the longitudinal axis 28 and into a release position further spaced from the longitudinal axis 28, and vice versa.
• the inner tool 27 also comprises a plurality of inner holding elements 31 which are arranged distributed over the circumference. Furthermore, in each case an inner receiving groove 32 is arranged or formed between the inner holding elements 31 arranged immediately adjacent in the circumferential direction and on their end sections facing away from the longitudinal axis 28.
• the inner holding elements 31 can also move the inner holding elements 31 of the inner tool 27 from a release position closer to the longitudinal axis 28 in the radial direction and in the direction of the outer tool 26 into a receiving position spaced apart from the longitudinal axis 28 and into an even further spaced apart from the longitudinal axis 28 Positioning and vice-versa.
• At least one of the tools 26, 27 can be rotated about the longitudinal axis 28, but before given it is both tools 26, 27 and this independently of one another. - 24 -
• the forming and inserting unit 24 can also include an inserting device 37 by means of which the provided laminated core 1 with its receiving chambers 2 is joined to the conductor package 6 to form a unit.
• the insertion device 37 can push the laminated core 1 onto the conductor elements 10, 11, 12 held by the tools 26, 27 and their freely protruding ends or end sections.
• the counter holder 33 can be provided for the axial support and positional positioning of the individual conductor elements 10, 11, 12 relative to the order forming and insertion tool 25, the counter holder 33 can be provided.
• the axial longitudinal extension of the outer holding elements 29 and the inner holding elements 31 can be selected in such a way that sufficient tilt-free retention and positioning of the conductor elements 10, 11, 12 is achieved. It should preferably be at least 1/4 to 1/3 of the straight length of the rod from sections 15, 16, 20, 21, 23 within the holding elements 29, 31 to be. So the rod from sections 15, 16, 20, 21, 23 of the conductor elements 10, 11, 12 each in the region of their longitudinal sections adjacent to the connecting section 17, 22 are received in the respective receiving grooves 30, 32.

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• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Power Engineering (AREA)
• Manufacture Of Motors, Generators (AREA)

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• 2019
  • 2019-03-01 AT ATA50165/2019A patent/AT522207A1/de unknown
• 2020
  • 2020-02-28 EP EP20717073.9A patent/EP3931952A1/de active Pending
  • 2020-02-28 CN CN202080010174.XA patent/CN113330669A/zh active Pending
  • 2020-02-28 WO PCT/AT2020/060057 patent/WO2020176916A1/de active Application Filing

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