Motor

Abstract

The invention relates to an electric machine (1) comprising a housing (2) having a receiving space (3) and a high-voltage terminal (4) which can be mounted in the receiving space (3) in a mounting direction (6) and which has a terminal housing (5), the housing (2) having a first guide structure (9) on an inner surface (8) of the receiving space (3) and the terminal housing (5) having a second guide structure (11) on an outer surface (10), the first and second guide structures (9, 11) cooperate when moved relative to one another in an installation direction (6) in such a way that the high-voltage terminal (4) is rotated out in a first movement region (B) relative to the installation direction (6) and is rotated back in a second movement region (C) relative to the installation direction (6), in this way, the fixed connection (12) of the terminal housing (5) is placed on the retaining shoulder (14) of the housing (2).

Description

Technical Field

[0001] The present invention relates to a motor comprising a housing with an accommodating space and a high-voltage terminal with a terminal housing which can be installed in the accommodating space along an installation direction. Background Art

[0002] High-voltage terminals (hereinafter referred to as: HV terminals) are generally used to energize electric motors, for example in automobiles. To this end, the HV terminal can have a connector for each pole of the motor. In order to energize the motor, it is crucial that all connectors of the HV terminal are precisely positioned relative to the various electrical connectors of the motor. To this end, the HV terminal can be installed in the accommodation space of the motor housing as appropriate. However, this housing is usually a casting with relatively large manufacturing errors, that is, the dimensional accuracy is relatively low, and therefore there are problems with the precise positioning of the HV terminal and the electrical connection of the HV terminal and the motor relative to each other.

[0003] Furthermore, in order to insert the HV terminal into the housing's receiving space, specific installation tolerances are required to ensure installation even if the HV terminal is slightly offset or twisted relative to the housing. However, these installation tolerances may cause the HV terminal to tilt and / or wedging during installation or when inserted into the housing, potentially damaging the HV terminal and / or the housing.

[0004] DE 10 2018 214 104 A1 describes a concept for compensating for inaccurate positioning of a power electronics component relative to a stator, which is energized by the power electronics component via contacts. In this case, the power electronics component has rigid contact strips and, in addition to the stator winding, a connecting device. This connecting device, in turn, has a winding-side connecting region and a power electronics-side connecting region, the latter being pivotable relative to the winding-side connecting region. The copper contacts of the connecting device can, for example, be pivoted or bent so as to align with the rigid contact strips of the power electronics component.

[0005] Therefore, in the prior art, a deflectable electrical connector that is larger than necessary is used to ensure that the electrical connector of the motor can be electrically connected to the HV terminal or the electrical connector of the power electronic device. However, there is no description of how to position the HV terminal as accurately as possible in the accommodation space of the motor housing. Summary of the Invention

[0006] The object of the present invention is therefore to improve the installation of an HV terminal in the accommodation space of an electric machine housing, in particular with regard to the positioning of the HV terminal and taking economic benefits into account.

[0007] With regard to the motor type mentioned at the beginning, the solution used by the present invention to achieve the above-mentioned purpose is that the shell has a first guide structure on the inner surface of the accommodating space, and the terminal shell has a second guide structure on the outer surface, wherein the first guide structure and the second guide structure cooperate in a certain manner when moving relative to each other along the installation direction, so that the HV terminal rotates out relative to the installation direction in the first movement area and rotates back relative to the installation direction in the second movement area, thereby placing the fixed joint of the terminal shell on the retaining boss of the shell.

[0008] Preferably, the HV terminal can be inserted into the housing space of the housing along the installation direction in advance with the help of a fixed joint, wherein the installation direction preferably extends axially, that is, extends along the installation axis. According to the present invention, the first guide structure located on the inner surface of the housing space and the second guide structure located on the outer surface of the terminal housing are designed so that they come into contact along the installation direction when the HV terminal is axially inserted into the housing space. During installation, the HV terminal is rotated out relative to the installation direction or the installation axis in the first movement area by the cooperation of the first guide structure and the second guide structure. In other words, rotating out can be understood as the end of the HV terminal with the fixed joint moving away from the inner surface of the housing space. By moving the HV terminal further into the housing space along the installation direction, the HV terminal is rotated back relative to the installation direction or the installation axis in the second movement area by the cooperation of the first guide structure and the second guide structure, thereby placing the fixed joint on the retaining boss of the housing. In other words, rotating back can be understood as the end of the HV terminal with the fixed joint moving toward the inner surface of the housing space again.

[0009] Thus, by being swiveled out, the fixing tab for fixing the terminal housing to the housing of the motor can be spaced apart from the inner surface of the receiving space and the retaining shoulder of the housing in order to avoid unnecessary collisions and / or wedging. By being swiveled back, the fixing tab can be placed in a defined manner on the retaining shoulder of the housing.

[0010] During installation, the first guide structure of the housing and the second guide structure of the terminal housing slide continuously or partially relative to each other, thereby preventing the HV terminal from tilting. If the fixed joint of the terminal housing protrudes, for example, the HV terminal can be rotated out and back to prevent the fixed joint from colliding with the retaining boss of the housing. Due to the suitable geometry of the first and second guide structures, the HV terminal can be rotated out a sufficient distance and rotated back again when installed in the accommodating space, so that unnecessary collisions can be avoided even in the presence of installation tolerances and deviations in the dimensional accuracy of the housing. This is particularly advantageous for motor housings, which are usually cast from aluminum, because these housings can have relatively low dimensional accuracy when the contact surfaces are not post-processed based on the casting process.

[0011] The first and second guide structures can be understood as wedge-shaped, ramp-shaped, or inclined surfaces, respectively. If the HV terminal moves axially relative to the housing and in the installation direction when installed in the housing, the first and second guide structures, due to their ramp-like or trapezoidal geometry, may collide at specific points along the installation direction. The geometry of the first and second guide structures allows the two guide structures to mate, and with respect to the fixed housing, deflect purely axial movement of the HV terminal in the installation direction into a tilted motion.

[0012] In a preferred embodiment, the first and second guide structures for rotating the HV terminal out of the first movement area each have at least one matching first inclined surface or rounded portion. Preferably, both the first and second guide structures have smooth surfaces without edges or corners to enable the guide structures to slide relative to each other as smoothly as possible. Depending on the speed and / or amplitude of the HV terminal's rotation out of the housing when installed, the first and / or second guide structures may be provided with inclined surfaces having a larger or smaller slope or correspondingly larger or smaller rounded portions.

[0013] Depending on the extent to which the HV terminal is rotated outward relative to the installation direction when installed in the housing's accommodating space, the maximum protrusion height HG of the first guide structure from the inner surface of the accommodating space and / or the maximum protrusion height HT of the second guide structure from the outer surface of the terminal housing can be correspondingly larger or smaller. If a slight rotation of the HV terminal is sufficient, the first and second guide structures can, for example, be configured as a gentle slope with a lower height HG or HT. The greater the heights HG and HT of the first and second guide structures, the greater the extent to which the HV terminal is rotated outward relative to the installation axis when installed in the housing's accommodating space.

[0014] According to the present invention, it is further particularly preferred that the first guide structure and the second guide structure each have at least one matching bevel or chamfer for rotating the HV terminal in the second movement area. Similar to the bevel or chamfer in the first movement area described previously, in the second movement area, the first and second guide structures are also advantageously provided with a bevel or chamfer, however, this bevel or chamfer causes the HV terminal to rotate relative to the installation direction or installation axis. In addition to the rotation, a defined rotation towards the installation axis can be advantageously caused by the second bevel or chamfer in the second movement area, wherein a sudden fall back or sudden return movement of the HV terminal can be avoided. Therefore, during the entire installation process, in particular in the second movement area, the HV terminal can be guided evenly along the housing of the motor without any sudden movement of the HV terminal. This can avoid damage to the HV terminal and / or the motor housing.

[0015] The geometries of the first and second guide structures can differ from each other. For example, one guide structure can protrude from the corresponding outer or inner surface or have a steeper slope or a larger radius than the other guide structure. The different geometries of the two guide structures can offer advantages in terms of manufacturing technology. Thus, for example, a larger or heavier guide structure can be provided on the motor housing or on the terminal housing, depending on the desired design.

[0016] According to the present invention, it is particularly advantageous that, in the mounting end position in which the fixed joint rests against the retaining boss, the second guide structure does not contact the inner surface of the accommodation space and / or the first guide structure. In the mounting end position, the HV terminal is in the desired position and orientation in the accommodation space of the motor housing. In the mounting end position, the first guide structure and the second guide structure can be completely moved past each other in the mounting direction. These guide structures can be designed so that they no longer come into contact and therefore no longer cooperate when the HV terminal is positioned in the accommodation space in the mounting end position. At the same time, the second guide structure of the accommodation space and the terminal housing can be designed so that they no longer come into contact when the HV terminal is positioned in the accommodation space in the mounting end position. This advantageously causes the fixed joint of the terminal housing to rest planarly against the retaining boss of the housing.

[0017] This avoids an inclined position of the fixing joint relative to the retaining boss. Therefore, the position and orientation of the HV terminal in the accommodation space can be set by the contact between the fixing joint and the retaining boss. Due to the importance of the fixing joint and the retaining boss for the positioning of the HV terminal in the accommodation space of the housing, the corresponding contact surfaces of the fixing joint and the retaining boss in contact with each other in the installation end position can have a higher precision and can therefore be provided with applicable tolerances and / or be post-processed. However, the unprocessed contact surface is preferably sufficient to achieve a defined position and orientation of the HV terminal in the accommodation space of the housing, while saving post-processing costs and / or eliminating the need for higher dimensional accuracy during the manufacturing process.

[0018] According to the present invention, it is particularly preferred that the fixing joint has a through hole for the fixing member, and the housing has a receiving structure for receiving the fixing member on the retaining boss, wherein the at least one through hole and the receiving structure coincide in the mounting end position. The fixing joint and the HV terminal can be securely connected to the housing by means of a fixing member. This through hole can be, for example, a drilled hole, in particular a drilled hole with an internal thread. Similarly, this receiving structure can also be a drilled hole with an internal thread, so that the fixing joint can be fixed to the housing by means of a screw as a fixing member. As an alternative, the fixing member can be a bolt or a pin. This through hole and / or this receiving structure do not need to have an internal thread.

[0019] In order to design the connection between the HV terminal and the housing as simply as possible, the through hole and the accommodating structure preferably overlap in some way in the installation end position so that they extend along a common fixed axis, and the fixing component can be inserted into the through hole and the accommodating structure along the common fixed axis.

[0020] In an alternative embodiment, the fixing joint may also have multiple through-holes, wherein the retaining shoulder may also have multiple receiving structures. The number of receiving structures in the retaining shoulder advantageously corresponds to the number of through-holes in the fixing joint. Thus, the fixing joint can be fixed to the retaining shoulder by multiple identical or different fixing members.

[0021] In the mounted position, the HV terminal is preferably fixed to the housing by means of at least one fixing member, wherein a fixing member, in particular a screw, is provided for fixing in each through hole of the fixing joint and in a receiving structure coinciding with the fixing axis of the corresponding through hole.

[0022] In one embodiment according to the invention, the HV terminal has a seal, and the accommodation space of the housing has a sealing surface, wherein, in the mounting end position, the seal rests against the sealing surface in a manner that seals the accommodation space outwardly and fixes the HV terminal. When the HV terminal is positioned in the accommodation space in the mounting end position, the accommodation space of the housing can be sealed outwardly by the seal. This is particularly advantageous because liquid can be prevented from entering the accommodation space by means of this seal. In this way, damage that may be caused by the entering liquid, in particular to the HV terminal or the live parts of the motor, can be effectively avoided. This seal is preferably a rubber seal, in particular an O-ring. A plurality of sealing rings can also be provided, which are in particular arranged in succession along the mounting direction. However, in general, any commonly used seal can be used as a seal, by using which the accommodation space can be sealed liquid-tightly outwardly when the HV terminal is in the mounting end position.

[0023] The sealing surface is preferably a particularly smooth surface without grooves or edges so that a seal, in particular a rubber seal, is not damaged when it moves along the sealing surface.

[0024] When the HV terminal is positioned in the end-mounted position, the seal, in particular an O-ring, is preferably compressed between the HV terminal and the sealing surface of the housing, sealing the accommodation space fluid-tightly toward the outside. The seal between the HV terminal and the motor housing creates a defined frictional contact, which improves the securement of the HV terminal in the accommodation space. In a preferred embodiment of the motor according to the present invention, the HV terminal is secured in the accommodation space of the housing solely by the securing member and the seal.

[0025] Advantageously, the HV terminal is centered or oriented in a defined manner in the receiving space in the installed end position by the contact between the seal and the sealing surface of the housing. In the installed end position, the position and orientation of the HV terminal in the receiving space are preferably set by the contact between the seal and / or the sealing surface and the fixing joint and the retaining shoulder.

[0026] In one specific design of the motor according to the present invention, the sealing surface is an opening of the accommodation space. In the installed end position, the high voltage terminal is centered in this opening by a seal and is thereby secured in two spatial directions perpendicular to the installation direction. Furthermore, the high voltage terminal is secured in the through-hole and the accommodation structure in the installation direction (i.e., the third spatial direction) by a securing member. Thus, the high voltage terminal is secured in the accommodation space in all three spatial directions.

[0027] Furthermore, according to the present invention, it is particularly preferred that the first and / or second guide structures are produced by casting, in particular, injection molding. This allows for the particularly cost-effective production of the first and / or second guide structures. As mentioned at the outset, the housings of conventional electric motors are cast from aluminum. Therefore, it is particularly preferred that the first guide structure is also produced by casting, in particular, injection molding. Furthermore, HV terminals typically also have a terminal housing, which is also produced from plastic by casting, in particular, injection molding. Therefore, it is similarly preferred that the second guide structure of the terminal housing is also produced by casting, in particular, injection molding.

[0028] In this case, it is particularly advantageous if the first guide structure and the housing and / or the second guide structure and the terminal housing are cast in the same manufacturing step. Consequently, no further manufacturing steps or tools are required to produce the first and / or second guide structure. During the casting process, the first and / or second guide structure can be cast together with the rest of the housing and / or terminal housing via a matching cavity in a casting mold for the housing and / or terminal housing.

[0029] The terminal housing and the second guide structure are preferably made of plastic by injection molding.The housing and the first guide structure are preferably made of metal, in particular aluminum, by injection molding.

[0030] In an alternative embodiment, the first and / or second guide structures can be attached to the housing and / or terminal housing as separate attachments via connecting elements, in particular screws or adhesive. If the guide structures cannot or are difficult to produce in the same manufacturing step as the housing or terminal housing, the guide structures can be attached to the housing or terminal housing as an attachment component via one or more connecting elements. In this case, the fixing of the guide structures must be designed to be sufficiently stable to prevent the guide structures from moving relative to the housing or terminal housing to which they are attached.

[0031] The electric motor according to the present invention, which has all the above-mentioned features and advantages, can be used in particular in a vehicle. In this case, the electric motor can preferably be used to drive the vehicle. In this case, the vehicle having the electric motor according to the present invention also has the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be described below in conjunction with embodiments with reference to the accompanying drawings. The accompanying drawings are schematic diagrams and show:

[0033] Figure 1 A schematic cross-sectional view of an embodiment of an electric machine according to the present invention having an HV terminal in a first installation position;

[0034] Figure 2 With the HV terminal in the second mounting position rotated out Figure 1 A schematic diagram of a motor according to the present invention is shown;

[0035] Figure 3 With the HV terminal in the third mounting position that is rotated out to the maximum extent Figure 1 A schematic diagram of a motor according to the present invention is shown;

[0036] Figure 4 With HV terminal in the fourth mounting position rotated back Figure 1 A schematic diagram of a motor according to the present invention is shown;

[0037] Figure 5 With HV terminals in mounting position Figure 1 A schematic diagram of a motor according to the present invention is shown; and

[0038] Figure 6 In the installation position Figure 5 Schematic detail of a first and a second guide structure of an electric machine according to the invention. DETAILED DESCRIPTION

[0039] Combined with the following Figures 1 to 5 An embodiment of a motor according to the present invention is schematically described. The motor includes a housing having an accommodation space for accommodating an HV terminal. Figures 1 to 5 The installation of an HV terminal into the housing of an electric machine is shown, and the position and orientation of the HV terminal at different points in time during the installation process are each schematically illustrated.

[0040] Figure 1An embodiment of an electric motor 1 according to the present invention is shown. The electric motor 1 comprises a housing 2 having an accommodation space 3 and an HV terminal 4 having a terminal housing 5. The HV terminal 4 can be inserted axially into the accommodation space 3 in an installation direction 6 to be fixed in the housing 2. The HV terminal 4 is used to energize the electric motor 1 and has a connector 7 for this purpose.

[0041] For installation, the HV terminal 4 is inserted axially into the accommodation space 3 along the installation direction 6 (from left to right in the figure). In addition, the housing 2 has a first guide structure 9 on the inner surface 8. In addition, the terminal housing 5 has a second guide structure 11 on the outer surface 10. At the installation time point shown, the HV terminal 4 is inserted into the internal space 3 along the installation direction 6 to a certain extent so that the first guide structure 9 of the housing 2 and the second guide structure 11 of the terminal housing 5 contact each other. The two guide structures 9 and 11 are designed so that when the HV terminal 4 is moved axially into the accommodation space 3 along the installation direction 6, the two guide structures will contact each other once the HV terminal 4 reaches a specific position along the installation direction 6. In this case, the housing 2 and the first guide structure 9 are fixed in position. Only the HV terminal 4 can move along the installation direction 6.

[0042] To be fixed to the housing 2, the HV terminal 4 has a fixing joint 12 on the terminal housing 5, in which a through-hole 13 for a fixing member is provided. In addition, the housing 2 has a retaining shoulder 14 including a receiving structure 15, which can receive the fixing member guided through the through-hole 13.

[0043] Furthermore, a seal 16 is provided on the HV terminal 4, which is in the mounting end position (see Figure 5 ) cooperates with the sealing surface 17 of the housing 2 to seal the accommodating space 3 fluid-tightly toward the outside. In the illustrated example, the seal 16 is an O-ring. However, any commonly used sealing member may be employed. For example, a sealing lip may alternatively be provided on the housing 2. Multiple seals 16 may also be used.

[0044] The terminal housing 5 is made of plastic by injection molding. Depending on the specific application, all commonly used plastics can be used here. The terminal housing 5 can be made of ABS, PC or PS, for example. In the example shown, the second guide structure 11 is a fixed component of the terminal housing 5 and is produced in the same casting process as this terminal housing. The housing 2 of the electric motor 1 is also a casting. The housing 2 is made of an aluminum alloy, wherein the first guide structure 9 is also a fixed component of the housing 2 and is produced in the same casting process as this housing. Therefore, no additional manufacturing steps or tools are required to form the guide structures 9, 11, which has a positive impact on manufacturing costs and overall economic efficiency.

[0045] In an embodiment variant not shown, the guide structures 9 , 11 can be provided as independent attachments, which are fixed to the housing 2 or the terminal housing 5 by connecting members (eg screws or adhesive).

[0046] The following describes in detail the installation of the HV terminal 4 and the cooperation between the first guide structure 9 and the second guide structure 11. Figures 1 to 5 , a mounting axis 18 is shown, which describes the direction of the mounting direction 6, i.e., the direction of the guiding movement of the HV terminal 4. A longitudinal axis 19 is also shown, which describes the resulting orientation of the HV terminal 4. The mounting axis 18 and the longitudinal axis 19 intersect at a common reference point 20. The combination of axes 18, 19 and the common reference point 20 allows for a better visualization of the orientation of the HV terminal 4 relative to the housing 2.

[0047] The first guide structure 9 and the second guide structure 11 are designed so that when the HV terminal 4 moves purely axially along the installation direction 6 or the installation axis 18, the two guide structures will contact each other once the HV terminal 4 reaches a specific position along the installation direction 6. To this end, the first guide structure 9 has a height HG (see FIG. Figure 6 Detailed drawing shown). In addition, the second guide structure 11 of the terminal housing 5 also has a height HT which protrudes from the outer surface 10 of the terminal housing 5. The sum of the heights HT and HG of the two guide structures is greater than the distance G between the outer surface 10 of the terminal housing 5 and the inner surface 8 of the housing 2 (see Figure 6 Detail shown).

[0048] Figure 1 The first guide structure 9 of the housing 2 and the second guide structure 11 of the terminal housing 5 are in contact with each other in the first movement area B (see FIG. Figure 6 In the first movement region B, the two guide structures 9 , 11 have first inclined surfaces including rounded portions, so that the HV terminal 4 is rotated out relative to the mounting direction 6 by further moving the HV terminal 4 along the mounting direction 6 .

[0049] exist Figure 2 , the HV terminal 4 moves further to the right along the installation direction 6, i.e., moves into the interior of the accommodation space 3. Due to the geometric shape of the guide structures 9, 11 and the mutual contact (i.e., fit) of the guide structures 9, 11, the HV terminal 4 is rotated out relative to the installation direction 6 and the installation axis 18. This can be clearly seen from the fact that the longitudinal axis 19 of the HV terminal 4 intersects the installation axis 18 at the reference point 20 and is deflected by the angle w1 relative to the installation axis 18. Figure 2 , the first guide structure 9 and the second guide structure 11 are still in contact in the first movement area B (see Figure 6 Detail shown).

[0050] exist Figure 3 In the embodiment, the HV terminal 4 is inserted into the accommodating space 3 to such an extent that the first guide structure 9 and the second guide structure 11 are in contact with each other at points that protrude most from the corresponding outer surface 10 of the terminal housing 5 or the inner surface 8 of the housing 2. The first guide structure 9 and the second guide structure 11 are in contact in the area between the first movement area B and the second movement area (see Figure 6 In this position along the mounting axis 18, the HV terminal 4 is deflected to the greatest extent relative to the mounting direction 6. This is clearly visible by the angle w2 between the mounting axis 18 and the longitudinal axis of deflection 19, which is greater than Figure 2 Angle w1 is shown. In the illustrated position, the HV terminal 4 is maximally deflected relative to the installation direction 6 for the entire installation process. The distance between the fixing tab 12 and the inner surface 8 of the housing 2 is at its maximum. This prevents collision between the fixing tab 12 and the retaining projection 14 during further insertion of the HV terminal 4, as the fixing tab 12 is further away from the inner surface 8 than the distance that the retaining projection 14 protrudes from this inner surface.

[0051] If the HV terminal 4 moves further into the accommodation space 3, the first guide structure 9 and the second guide structure 11 come into contact in the second movement area C (see Figure 6 In this second movement area, the guide structures 9, 11 also have inclined surfaces and rounded parts. Figure 4 Shown in.

[0052] In the second movement area C, the second guide structure 11 of this embodiment has an inclined surface, while the first guide structure 9 is provided with a rounded portion. The height of the guide structures 9 and 11 protruding from the corresponding inner surface 8 or outer surface 10 is reduced in the second movement area C, so that the HV terminal is turned back toward the installation direction 6. It can be seen that Figure 4 The angle w3 at which the longitudinal axis 19 of the HV terminal 4 deflects relative to the mounting axis 18 and the mounting direction 6 is less than Figure 3 The fixing joint 12 protrudes slightly beyond the retaining shoulder 14 in the installation direction 6, but does not come into contact with it.

[0053] The HV terminal 4 is shown in the installation end position in the accommodation space 3 of the housing 2. Figure 5In the figure, the HV terminal 4 is shifted to the right along the installation direction 6 to a certain extent, so that the through-hole 13 of the fixing joint 12 coincides with the receiving structure 15 of the retaining shoulder 14. Therefore, the through-hole 13 and the receiving structure 15 share a common installation axis 21, along which a fixing member 22 (here, a screw 23 with a washer 24) is inserted to secure the HV terminal 4 to the housing 2. The fixing joint 12 rests on the contact surface 25 of the housing via the contact surface 26. Here, the contact surfaces 25 and 26 have not been post-processed. However, they can be reprocessed to achieve a higher surface quality.

[0054] The HV terminal 4 is positioned on the sealing surface 17 of the housing 2 via the seal 16. The seal 16 and the screw 23 allow the HV terminal 4 to be positioned in the accommodating space 3 with sufficient accuracy even without post-processing the contact surfaces 25 and 26. The sealing surface 17 is post-processed to provide a sufficiently good surface quality so that the seal 16 will not be damaged by contact with the sealing surface 17. Figure 5 As can be seen in the figure, the seal 16 (here an O-ring) is compressed between the HV terminal 4 and the sealing surface 17, whereby on the one hand the accommodating space 3 is sealed liquid-tight toward the outside, and on the other hand there is a friction fit that fixes the HV terminal 4 in the housing 2.

[0055] exist Figure 5 In the installation end position shown, the second guide structure 11 does not contact the inner surface 8 of the accommodating space 3, nor does it contact the first guide structure 9. Figure 6 This can also be seen in the detailed view shown. Thus, the HV terminal 4 is secured to the sealing surface 17 of the housing 2 via the seal 16, with the HV terminal 4 prevented from tilting by the abutment of the fixing tab 12 against the retaining shoulder 14. Movement of the HV terminal 4 in the installation direction 6 is additionally prevented by the screw 23 serving as the securing member 22, which secures the fixing tab 12 to the retaining shoulder 14. Thus, the HV terminal 4 is secured in the housing space 3 of the housing 2 solely by the seal 16 and the screw 23.

[0056] In other embodiments, the HV terminal 4 may be provided with a plurality of sealing members 16 connected in series, which are located at the installation end ( Figure 5 ) in contact with the sealing surface 17 of the housing. Alternatively, a plurality of fixing members 22, for example in the form of bolts or pins, may be provided to fix the fixing joint 12 to the retaining shoulder 14 of the housing 2. In this case, the size and / or number of the through-holes 13 should preferably correspond to the size and / or number of the receiving structure 15 and the size and / or number of the fixing members 22.

[0057] Description of Reference Numerals

[0058] 1 motor

[0059] 2 Shell

[0060] 3 Storage space

[0061] 4 High voltage terminals

[0062] 5-terminal housing

[0063] 6 Installation direction

[0064] 7 Connectors

[0065] 8 Inner surface

[0066] 9 First guide structure

[0067] 10 External surface

[0068] 11 Second guide structure

[0069] 12 Fixed joints

[0070] 13 through holes

[0071] 14. Maintaining the shoulder

[0072] 15. Accommodation structure

[0073] 16 seals

[0074] 17 Sealing surface

[0075] 18 Install the shaft

[0076] 19 vertical axis

[0077] 20 reference points

[0078] 21 Install the shaft

[0079] 22 Fixed components

[0080] 23 screws

[0081] 24 washers

[0082] 25 contact surface

[0083] 26 contact surface

[0084] B. First motor area

[0085] C Second motor area

[0086] HG Height

[0087] HT Height

[0088] w1 angle

[0089] w2 angle

[0090] w3 angle.

Claims

1. A motor (1), comprising a housing (2) having an accommodating space (3) and a high-voltage terminal (4) installable in the accommodating space (3) along an installation direction (6), the high-voltage terminal having a terminal housing (5), wherein: The housing (2) has a first guide structure (9) on the inner surface (8) of the accommodating space (3), and the terminal housing (5) has a second guide structure (11) on the outer surface (10), wherein the first and second guide structures (9, 11) cooperate in a certain manner when moving relative to each other along the installation direction (6), so that the high-voltage terminal (4) is rotated out relative to the installation direction (6) in a first movement area (B) and rotated back relative to the installation direction (6) in a second movement area (C), thereby placing the fixed joint (12) of the terminal housing (5) on the retaining boss (14) of the housing (2).

2. The electric machine (1) according to claim 1, It is characterized in that The first guiding structure (9) and the second guiding structure (11) for rotating the high-voltage terminal (4) in the first movement area (B) respectively have at least one matching first inclined surface or chamfered portion.

3. The electric motor (1) according to claim 2, It is characterized in that The first guide structure (9) and the second guide structure (11) for rotating the high-voltage terminal (4) in the second movement area (C) respectively have at least one matching second inclined surface or rounded portion.

4. An electric machine (1) according to any one of the preceding claims, It is characterized in that In the installation end position where the fixed joint (12) abuts against the retaining boss (14), the second guide structure (11) does not contact the inner surface (8) of the accommodating space (3) and / or the first guide structure (9).

5. An electric machine (1) according to any one of the preceding claims, It is characterized in that The fixing joint (12) has a through hole (13) for fixing components (22, 23), and the housing (2) has a receiving structure (15) for receiving the fixing components (22, 23) on the retaining boss (14), wherein the at least one through hole (13) and the receiving structure (15) coincide in the installation end position.

6. An electric machine (1) according to any one of the preceding claims, It is characterized in that The high-voltage terminal (4) has a sealing member (16), and the accommodating space (3) of the housing (2) has a sealing surface (17), wherein, in the installation end position, the sealing member (16) abuts against the sealing surface (17) in a manner of sealing the accommodating space (3) outwardly and fixing the high-voltage terminal (4).

7. An electric machine (1) according to any one of the preceding claims, It is characterized in that The first guide structure (9) and / or the second guide structure (11) are manufactured by casting, in particular injection molding.

8. The electric machine (1) according to claim 7, It is characterized in that The first guide structure (9) and the housing (2) and / or the second guide structure (11) and the terminal housing (5) are cast in the same manufacturing step.

9. An electric machine (1) according to any one of claims 1 to 7, It is characterized in that The first guide structure (9) and / or the second guide structure (11) are fixed as accessories to the housing (2) and / or the terminal housing (5) via connecting components, in particular screws or adhesive.

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