Stator of an electric motor with a replaceable temperature sensor

Abstract

The present invention relates to a stator (2) of an electric machine (1), the stator having: a stator axis (100); an electrical winding (8) having electrical conductors (16, 21), the winding forming winding heads (9) at the end sides of the stator (2) respectively; and a sensor holding device (10) having a metallic receiving area (11) and a metallic fastening area (12), the receiving area for receiving a temperature sensor (14), wherein the fastening area (12) is mounted at at least one electrical conductor (16, 21) of the winding head (9), characterized in that the receiving area (11) protrudes axially with respect to the winding head (9) about the stator axis (100).

Description

Technical Field

[0001] The invention relates to a stator of an electric machine. The stator is constructed in such a way that a temperature sensor can be replaced in a simple manner. Background Art

[0002] Electric machines are known from the prior art. In such an electric machine, there is a stator having electrical conductors that form an electrical winding. A motor is described in US 2013 / 270973 A1, in which the electrical windings respectively form winding heads at the end sides of the stator. A sensor element receiving portion for a temperature sensor is provided at one of the winding heads. In this way, the temperature of the stator can be determined, which is required especially for controlling the electric machine. Thus, the rotor and the stator of the electric machine can be protected against temperature, and the measured temperature can in particular also be incorporated into the torque regulation of the electric machine. Summary of the Invention

[0003] The stator of the electric machine according to the invention enables a replaceable solution for the temperature sensor. Here, the temperature sensor can be replaced multiple times and easily when needed. In particular, the disassembly of the bearing carrier is avoided here. Similarly, a simplified handling of the temperature sensor can be achieved. This is achieved in particular by the fact that the temperature sensor is easily accessible. At the same time, it is achieved that the temperature sensor can achieve an optimized temperature measurement.

[0004] The stator of the electric machine has an electric winding including electric conductors. Particularly advantageously, the winding is configured as a plug-in winding, in which case rigid, in particular U-shaped, conductor elements are inserted into the stator body and then electrically connected to one another. At the end sides of the stator, the electric winding forms a winding head. Additionally provided, the stator has a sensor holding device. The sensor holding device includes a metallic receiving area and a metallic fastening area. The receiving area is configured to receive a temperature sensor. The fastening area is configured at at least one electric conductor of the winding head. The receiving area and the fastening area are preferably connected to one another in a thermally conductive manner, such that the temperature present at the winding head can be determined by means of the temperature sensor. The entire sensor holding device is preferably made of the same metallic material. The receiving area projects axially with respect to the winding head relative to the stator axis. Thus, in particular, the temperature sensor can be easily and effortlessly accessed. Here, the temperature sensor is not directly mounted at the winding head, but is spaced apart from this winding head. Nevertheless, a safe and reliable detection of the temperature of the winding head can still be achieved. Preferably, the temperature sensor can be replaced without difficulty. Thus, in particular, the electric machine can be designed for high operating powers, since in the event of a malfunction, the temperature sensor can be easily and effortlessly replaced. By using the sensor holding device, in particular, the complex wiring of a new sensor can also be simplified after replacement. Additionally, the use of the sensor holding device can reduce the electrical clearances and / or air gaps associated with the winding. The sensor holding device can be used for all types of circuits of the electric machine, in particular not only for delta circuits, but also for star circuits.

[0005] The content of other technical solutions is a preferred expansion solution of the present invention.

[0006] Preferably, the sensor holding device includes an arm area, which is also metallic. The arm area extends between the fastening area and the receiving area and in particular enables heat conduction. The projection of the receiving area with respect to the winding head as described above is in particular achieved by the arm area, which spatially separates the receiving area from the fastening area, but still allows heat transfer. The arm area extends at least partially radially with respect to the stator axis.

[0007] The fastening area of the sensor holding device and the receiving area of the sensor holding device, and particularly preferably also the arm area of the sensor holding device, are integrally configured. Particularly advantageously, the sensor holding device is implemented as a stamped and bent part. Thereby, the sensor holding device can be easily and effortlessly manufactured. At the same time, the sensor holding device has high thermal conductivity, such that a distortion-free temperature measurement can be achieved.

[0008] Preferably, the receiving area has a sheath, which is particularly advantageously implemented as an electrical insulator and / or made of plastic. Here, it is provided at least locally that the sheath does not directly abut against the receiving area, so that elastic expansion of the receiving area can be achieved, which is particularly configured in a hollow cylindrical shape. Thus, advantageously, a hollow cylindrical gap is left between at least a part of the receiving area and the sheath. The receiving area is electrically insulated by the sheath and in particular also protected from external influences. The sheath can also be realized by applying a separate plastic sleeve.

[0009] In a preferred configuration, the sheath has a cover section, a surrounding area, and a desired breaking site. The cover section is used to close the receiving area, while the surrounding area is used to surround the receiving area. The desired breaking site is located between the cover section and the surrounding area. Thus, the shielding function of the receiving area can be achieved particularly by the surrounding area. The cover section prevents foreign objects from entering the receiving area. On the contrary, if a temperature sensor is to be used, the desired breaking site needs to be broken first, whereby the cover section can be removed to open the receiving area. This is particularly advantageous because the stator of the electric machine is often impregnated to achieve electrical insulation. For this purpose, resin or other plastics are applied to the stator by means of an impregnation tool. This resin can also reach the receiving area and cause a poor contact between the temperature sensor and the receiving area, thereby distorting the temperature measurement. In addition, there can be a risk of preventing the preferably existing, aforementioned spring effect of the receiving area, so that on the one hand the temperature sensor can no longer be held form-fittingly, but on the other hand there is also a risk that tolerance compensation can no longer be reliably performed in the case of different temperature sensors. This also leads to deterioration and / or distortion of the measured temperature. On the contrary, the resin can be prevented from entering the receiving area or the gap between the receiving area and the surrounding area of the sheath by the cover section. Thus, the above-mentioned adverse effects are reliably prevented. If the stator is completely impregnated, the cover section can be removed by breaking the desired breaking site to enable the insertion of the temperature sensor.

[0010] Preferably, the electrical conductor of the winding has a conductor element for manufacturing an electrical plug-in winding and at least one electrical connection element. The electrical connection element serves as the star point of the electrical plug-in winding. Advantageously, the fastening area is mounted form-fittingly and / or force-fittingly and / or material-fittingly at the electrical connection element. Particularly advantageously, the fastening area is welded or brazed at the electrical connection element. In particular, the electrical connection element is part of a winding head.

[0011] In an alternative preferred configuration, it is further provided that the electrical conductor of the winding has a conductor element for manufacturing a plug-in winding, wherein the fastening region is directly fastened to at least one conductor element. Preferably, the fastening region is form-fitting and / or force-fitting and / or material-fittingly fastened to the conductor element. This is advantageous especially when a star-shaped interconnect structure is not provided, and thus the connecting element as described above is not provided. Particularly preferably, the fastening region is welded and / or brazed to the conductor element. In other respects, the same advantages as described above are achieved. In particular, temperature measurement can be performed at the winding head through the fastening region, while the position of the temperature sensor is spaced apart from the winding head, where the temperature sensor can be replaced simply and without difficulty.

[0012] Particularly preferably, the fastening region and the electrical conductor to which the fastening region is fastened are at least partially surrounded by a common injection-molded encapsulation. This injection-molded encapsulation is particularly used for electrical insulation and for shielding the encapsulated region from external influences. In particular, when this electrical conductor is the connecting element as described above, the injection molding of the electrical conductor is a common process. Therefore, this common process is not hindered by the installation of the sensor holding device, and additional injection molding of at least the fastening region of the sensor holding device can be achieved.

[0013] Preferably, the receiving region is configured to elastically resiliently. Particularly advantageously, the receiving region is hollow cylindrical. In this way, the temperature sensor can be held in a force-fitting manner. For this purpose, the temperature sensor can be pushed into the hollow cylinder of the receiving region, and the temperature sensor is particularly cylindrically configured. Pushing the temperature sensor into the receiving region causes the elastic expansion of the receiving region, whereby an elastic restoring force acts on the temperature sensor, so that the temperature sensor is held in a force-fitting manner. Therefore, on the one hand, the temperature sensor can be replaced simply and without difficulty, and on the other hand, the temperature sensor can be held and installed in an optimized manner for optimized temperature transfer.

[0014] The invention furthermore relates to an electric machine. The electric machine has a stator and a rotor as described above. The stator is mounted on a housing. The rotor can be driven by the stator and is supported at a bearing carrier by a bearing assembly, wherein the bearing carrier is mounted on the housing. In particular, the bearing assembly includes a rolling bearing or a sliding bearing, wherein the bearing assembly serves to support the rotor at the bearing carrier. In the bearing carrier, in particular, an opening is provided, such that the winding head can be accessed, in particular, through this opening. A sensor holder, in particular a receiving area, extends into or through the opening. Advantageously, the sensor holder, in particular the receiving area, protrudes through this opening. Preferably, the sensor holder passes through the opening. Passing through the opening or extending into the opening is achieved by the sensor holder protruding axially beyond the winding head. Thus, the temperature sensor held by the sensor holder can be replaced easily and without great effort. In particular, for this purpose, it is not necessary to disassemble the bearing carrier and the associated effort. Such disassembly would involve the removal of at least one bearing carrier, whereby it would be necessary to disassemble the rotor. This effort can be avoided due to the easy access to the temperature sensor based on the sensor holder.

[0015] Advantageously, an electrical attachment element is provided, which serves to electrically connect the winding to a further electrical component outside the electric machine. The electrical attachment element advantageously extends through the opening of the bearing carrier. Thus, in particular in the electric machine, the opening already exists. Thus, in particular, it can be achieved that the temperature sensor is mounted in such an area of the electric machine where the electric machine can be easily accessed, so that the temperature sensor can be easily replaced.

[0016] Preferably, a housing cover is provided, which serves to cover the opening and the bearing assembly. Here, the housing cover preferably does not perform any load-bearing function at the electric machine at all, but is merely a covering element. Due to the easy removal of the housing cover, the temperature sensor can be replaced easily and without great effort, since it is only necessary to remove this temperature sensor from the sensor holder protruding through the opening of the bearing carrier. It is also possible to easily and without great effort insert a new temperature sensor into the receiving area of the sensor holder.

[0017] Preferably, the housing is embodied as a hollow cylindrical or pot-shaped. The stator is received in the hollow cylindrical housing. The housing is covered at the end sides by the bearing carriers. Here, in particular in the case of the hollow cylindrical housing, it is provided that bearing carriers are arranged at the end sides on both sides. However, advantageously, only one bearing carrier has the described opening through which the temperature sensor protrudes. However, it is also possible that at least one temperature sensor is mounted at the winding heads present at the end sides on both sides, wherein, advantageously, the aforementioned sensor holders are used respectively. In each case, it can be achieved that the temperature sensor can be replaced easily and without great effort, since the temperature sensor can be easily accessed. Description of the Drawings

[0018] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Shown in the drawings are:

[0019] Figure 1 A first schematic view of an electric machine according to an embodiment of the present invention,

[0020] Figure 2 A second schematic view of an electric machine according to an embodiment of the present invention,

[0021] Figure 3 A third schematic view of an electric machine according to an embodiment of the present invention,

[0022] Figure 4 A fourth schematic view of an electric machine according to an embodiment of the present invention,

[0023] Figure 5 A schematic view of a connecting element together with a sensor bracket of an electric machine according to an embodiment of the present invention,

[0024] Figure 6 A schematic cross-sectional view of a connecting element with a sensor bracket of an electric machine according to an embodiment of the present invention,

[0025] Figures 7a to 7d A schematic view of the manufacture of a sensor bracket of an electric machine according to an embodiment of the present invention,

[0026] Figure 8 A schematic view of a rotor of an electric machine according to an embodiment of the present invention,

[0027] Figure 9 Another schematic view of a sensor bracket of an electric machine according to an embodiment of the present invention,

[0028] Figure 10 Yet another schematic view of a sensor bracket of an electric machine according to an embodiment of the present invention,

[0029] Figure 11 A schematic view of a stator of an electric machine according to an embodiment of the present invention during impregnation,

[0030] Figure 12 A schematic cross-sectional view of a sensor bracket with a sheath,

[0031] Figure 13 A spatial illustration of a sensor holding device with a sheath, and

[0032] Figure 14 A schematic illustration of a connecting element with a coated sensor holding device. Detailed Description of the Invention

[0033] Figure 1View schematically showing the electric machine 1 according to an embodiment of the present invention. Similarly, Figure 2 and Figure 3 show schematic details of the electric machine 1 according to an embodiment of the present invention. Figures 1 to 3 The embodiments in Figure 4 have minor variations, and the basic overall concept is explained hereinafter. Figures 1 to 4 The construction of the electric machine 1 is schematically shown as a principle diagram. It will be described together with

[0034] Figures 1 to 4 The electric machine 1 is shown, which includes a housing 3, in which a stator 2 is installed, and the stator extends along a stator axis 100. The stator 2 is used to drive a rotor 4, and the stator 2 has a winding 8, which has electrical conductors 16, 21. This winding 8 forms a winding head 9 at at least one end side of the stator 2, especially at both end sides. Temperature measurement should be carried out on this winding head 9.

[0035] The winding 8 is especially constructed as a plug-in winding. For this purpose, the electrical conductors 16, 21 have U-shaped or I-shaped, rigid electrical conductor elements 21, which are plugged into the rotor matrix and are connected to each other at the free ends. In this way, different windings 8 of the stator 2 can be realized.

[0036] As Figures 1 to 3 shown, advantageously, the housing 3 is hollow cylindrical. However, it is also possible to provide a can shape as Figure 4 schematically shown. In each case, at least one bearing carrier 5 is provided, which is used to cover the housing 3 at the end side. In addition, the bearing carrier 5 is used to receive a bearing assembly 20, and the rotor 4 is supported on the bearing carrier 5 through this bearing assembly. If the electric machine 1 is to be assembled, first the stator 2 needs to be installed in the housing 3, and then the rotor 4 needs to be introduced into the stator 2 and the rotor needs to be supported at at least one bearing carrier 5.

[0037] The bearing carrier 5 has an opening 7, through which the winding head 9 of the stator 2 can be accessed. In addition, an electrical attachment element 17 extends through the opening 7. The electrical attachment element 17 is used to electrically contact the winding 8 of the stator 2 with external components outside the electric machine 1. In Figures 1 to 3 it is exemplarily provided that a three-phase driver is constructed, so that the electric machine 1 has three electrical attachment elements 17. By constructing the opening 7 in the bearing carrier 5, easy and trouble-free electrical contact can be achieved.

[0038] The opening 7 together with the bearing assembly 20 is covered by a housing cover 7. Different from the housing 3 and the bearing carrier 5, this housing cover 6 does not bear a load-bearing function. Therefore, the housing cover 6 can be easily and trouble-free removed, especially in order to easily access the electrical attachment element 17 and the bearing assembly 20.

[0039] In addition, a sensor holding device 10 is provided at the winding head 9 of the rotor 1. The sensor holding device 10 is used to receive the temperature sensor 14, so that the temperature sensor 14 can be easily and effortlessly installed at the electric machine 1. In order to assemble the temperature sensor 14, only the housing cover 6 needs to be disassembled, whereby the assembly of the temperature sensor 14 can be easily and effortlessly achieved, and furthermore, the replacement of the temperature sensor 14 can also be easily and effortlessly achieved. In particular, it is avoided that: the bearing carrier 5 needs to be disassembled, and furthermore, the bearing assembly 20 needs to be disassembled.

[0040] The simplified assemblability and replaceability of the temperature sensor 14 can be achieved in the following way: the sensor holding device 10 starts from the winding head 9 and passes through the opening 7, at which the temperature measurement should be carried out. Therefore, the sensor holding device 10 protrudes axially beyond the stator 1 with respect to the stator axis 100. The installation of the sensor holding device 10 can be achieved in different ways, which can especially depend on the way of interconnecting the electrical conductors 16, 21 to form the winding 8 of the stator 2. For example, different attachments can be made depending on whether a delta interconnect structure or a star interconnect structure exists.

[0041] Figure 5 Figs. 5 to 7 show a variant in which there is a star interconnect structure. In this case, the electrical conductors 16, 21 not only have the described conductor elements 21, but also have connecting elements 16, wherein the connecting elements 16 are used to interconnect the plug-in windings formed by the conductor elements 21 in a star shape. The connecting element 16 is preferably directly electrically connected to the above-mentioned electrical connection element 17, so as to provide a three-phase electric machine 1 in the illustrated embodiment.

[0042] Figure 5 A spatial view of the connecting element 16 together with the sensor holding device 10 is shown. Figure 6 A cross-sectional view of the region of the connecting element 16 where the sensor holding device 10 is particularly installed is shown. As Figure 5 and Figure 6 shown, the sensor holding device 10 includes a receiving region 11, which is provided for receiving the temperature sensor 14. An arm region 13 adjoins the receiving region 10, and this arm region connects the receiving region 11 to the fastening region 12. At the fastening region 12, the sensor holding device 10 is coupled to the connecting element 16.

[0043] Via the connection region 12, the sensor holding device 10 is slipped onto the region of the connection element 16 and advantageously welded or brazed to the connection element 16. Preferably, the metal contact is manufactured in such a way that an optimized temperature transfer exists between the connection element 16 and the fastening region 12. Advantageously, since the fastening region 12, the receiving region 11 and the arm region 13 are integrally made of a metallic material, the heat transfer from the connection element 16 to the receiving region 11 can be realized in an optimized manner. Thus, the temperature measured at the receiving region 11 corresponds at least with sufficient accuracy for the present invention to the temperature at the connection element 16. Since the connection element 16 is directly mounted at the conductor of the winding head 9, the temperature of the winding head can be detected.

[0044] Advantageously, the connection element 16 has an injection molding encapsulation 18. This injection molding encapsulation surrounds at least one sub-region of the connection element 16. In particular, the injection molding encapsulation 18 is a common injection molding encapsulation which also surrounds the fastening region 12 of the sensor holding device 10. Thus, advantageously, the connection site between the sensor holding device 10 and the connection element 16 is protected against external influences.

[0045] For electrical insulation and for protection against external influences, the receiving region 11 is advantageously surrounded by a sheath 15. The receiving region 11 is configured as a hollow cylinder and preferably enables a form-fit reception of the temperature sensor 14. This means that the hollow cylindrical receiving region 11 is elastically configured such that the insertion of the cylindrical temperature sensor 14 causes the receiving region 11 to expand. Thereby, an elastic restoring force is generated by which the temperature sensor 14 is held in a form-fit manner. This applies in particular to different dimensions of the temperature sensor 14, so that tolerance compensation can be achieved. Thereby, the sensor holding device 10 is suitable for different temperature sensors 14 and thus the replacement of the temperature sensor 14 can be realized in a simple manner.

[0046] To enable the expansion of the receiving region 11, a gap is left between the sheath 15 and the outer periphery of the receiving region 11. This is described in more detail below with reference to Figure 10 This is described more precisely.

[0047] Figures 7a to 7d Different views showing the manufacturing process of the sensor holding device 10 are presented. In particular, the sensor holding device 10 is manufactured as a stamped sheet metal part. Figure 7a The original material that has been stamped is shown. This original material is formed by bending such that on the one hand the hollow cylindrical shape of the receiving region 11 is achieved and on the other hand the fastening region 12 is formed as required. As Figure 7bAs shown, the fastening region 12 is designed to be slipped over the region of the connecting element 16 and welded to this region. By means of the arm region 13, it is achieved that the receiving region 11 and the fastening region 12 are constructed at different positions. Figure 7c Only the installation of the sheath 15 is shown. The sheath 15 serves for the electrical insulation of the receiving region 11 and thus also for protecting the receiving region 11 from external influences.

[0048] Figure 7d Only the connection of the connecting element 16 and the sensor holding device 10 is shown, in such a way that the fastening region 12 is slipped over the corresponding region of the fastening element 16. Then, preferably, fusion welding or soldering is carried out. Finally, the common injection-molded encapsulation 18 as described above can be applied.

[0049] Figure 8 An alternative configuration and use of the sensor holding device 10 are shown. In this case, it is preferably provided that there is no star interconnect structure, such that the conductors 16, 21 also do not have the connecting element 16 as described above. In this case, the sensor holding device 10, in particular the fastening region 12, is advantageously directly fusion-welded or soldered to the conductor element 12 of the winding 8. For this purpose, Figure 9 and Figure 10 Different configurations of the sensor holding device 10 are shown. Here, the holding is basically divided into a fastening region 12, an arm region 13 and a receiving region 11. However, at least the fastening region 12 is configured differently in order to enable the corresponding fastening at the conductor element 21.

[0050] Furthermore, in Figure 10 a gap X can be seen, which is retained between the sheath 15 and the receiving region 11. When the temperature sensor 14 is pushed in, the receiving region 11 can be expanded through this gap X. Thus, a form-locking hold of the temperature sensor 14 can be achieved by the elastic restoring force of the receiving region 11. The receiving region 11 can elastically deform independently of the sheath 15.

[0051] Figures 11 to 14 Only another alternative of the sensor assembly 10 is shown. Thus, in Figure 11 it is shown that the stator 2 is impregnated by means of an impregnation tool 19, preferably with a resin. In this way, the stator 2 can be electrically insulated. In order to prevent the resin from penetrating into the receiving region 11 and / or the gap X, the sheath 15 is modified. For this purpose, the sheath 15 has a cover section 15a, a surrounding region 15b and a desired breaking site 15c located therebetween. Here, the surrounding region 15b assumes the same functions as those shown in the foregoing figures and described above. This means that the surrounding region 15b electrically insulates the receiving region 11 and shields this receiving region in particular from external influences.

[0052] The cover section 15a serves to enclose the receiving area 11. If impregnation is carried out by means of the impregnation tool 19, it is prevented that resin can penetrate into the receiving area 11 and / or the gap X. Likewise, it is prevented that other foreign objects penetrate into the gap X and / or the receiving area 11. This is shown in particular in Figure 12 and Figure 13 .

[0053] Conversely, if the temperature sensor 14 is to be introduced into the receiving area 11, the cover section 15a can be removed by breaking off the desired breaking point 15c, as shown in Figure 14 . In this way, impregnation protection can be achieved by a simple modification of the sheath 15. Here, the entire sheath including the cover section 15a, the surrounding area 15b and the desired breaking point 15c is applied to the receiving area 11 collectively and is thus impregnated by means of the impregnation tool 19. Finally, it is only necessary to break off the desired breaking point 15c.

Claims

1. Electric machine (1), having a housing (3) in which a stator (2) is installed, the stator having: a stator axis (100), an electric winding (8) having electric conductors (16, 21), the winding forming winding heads (9) at the end sides of the stator (2) respectively, and a sensor holding device (10) having a metallic receiving area (11) and a metallic fastening area (12), the receiving area being for receiving a temperature sensor (14), wherein, The fastening region (12) is mounted at at least one electrical conductor (16, 21) of the winding head (9), wherein the receiving region (11) projects axially with respect to the winding head (9) about the stator axis (100). The electric machine has a rotor (4) which can be driven by the stator (2) and is supported by a bearing assembly (20) at a bearing carrier (5) mounted at the housing (3), wherein the bearing carrier (5) has an opening (7), and wherein the receiving region (12) of the sensor holding device (10) projects into or through the opening (7). The receiving region (12) of the sensor holding device (10) is open in a direction away from the stator (2), wherein the temperature sensor (14) is axially spaced from the winding head (9) by the sensor holding device (10). An arm region (13) is arranged between the fastening region (12) and the receiving region (11).

2. The electric machine (1) according to claim 1, characterized in that, The arm region extends at least partially radially about the stator axis (100).

3. The electric machine (1) according to claim 1, characterized in that The fastening region (12) of the sensor holding device (10) and the receiving region (11) of the sensor holding device (10) are integrally formed and embodied as a stamped and bent part.

4. The electric machine (1) according to claim 1, characterized in that, The receiving region (11) has a sheath (15) which is embodied as an electrical insulator and / or made of plastic.

5. The electric machine (1) according to claim 4, characterized in that, The sheath (15) has a cover section (15a) for closing the receiving region (11), a surrounding region (15b) for surrounding the receiving region (11), and a desired breaking site (15c) therebetween, such that the cover section (15a) can be removed by breaking the desired breaking site (15c) to open the receiving region (11).

6. The electric machine (1) according to claim 1, characterized in that, The electrical conductors (16, 21) have electrical conductor elements (21) for manufacturing an electrical plug-in winding and at least one electrical connection element (16) which forms a star point of the electrical plug-in winding, wherein the fastening region (12) is mounted at the electrical connection element (16).

7. The electric machine (1) according to claim 1, characterized in that, The conductors (16, 21) have conductor elements (21) for manufacturing a plug-in winding, wherein the fastening region (12) is fastened at at least one conductor element (12).

8. The electric machine (1) according to claim 6 or 7, characterized in that, The fastening region (12) at least sectionally surrounds the conductor (16, 21) to which the fastening region is fastened, and wherein the fastening region (12) and the conductor (16, 21) to which the fastening region is fastened are at least partially surrounded by a common injection-molded encapsulation (18).

9. The electric machine (1) according to claim 1, characterized in that, The receiving region (11) is elastically resiliently and hollow-cylindrically formed to positively hold the temperature sensor (14).

10. The electric machine (1) according to claim 9, characterized in that, At least one electrical attachment element (17) for connecting the winding (8) to a further electrical component outside the electric machine (1) extends through the opening (7).

11. The motor (1) according to claim 1, characterized in that A housing cover (6) covers the opening (7) and the bearing assembly (20) by means of the housing cover.

12. The motor (1) according to claim 1, characterized in that, The housing (3) is embodied as a hollow cylinder or can-shaped, wherein the bearing carrier (5) is mounted on the end side of the housing (3).

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