CN221151083U - Separator for motor and motor - Google Patents

Abstract

The application proposes a separator for an electric machine, configured to be mounted to a housing of the electric machine, so as to separate an inner cavity of the housing containing an electric component from a connection terminal of the electric machine, adapted to electrically connect said electric component with a further electric device. The separator is provided with a separation body configured to block a passage of the housing between the inner cavity and the connection terminal to block the passage of the liquid. The partition body is formed with at least one wire guide penetrating the partition body in a penetrating direction and configured to allow a wire to pass through the partition body to electrically connect the electrical component to the connection terminal. The application further provides a motor. By means of the application, the connection terminals and thus the electrical components connected to the connection terminals can be protected from liquid from the inner cavity.

Description

Separator for motor and motor

Technical Field

The present application relates to a separator for an electric machine and an electric machine.

Background

Typically, the motor may be electrically connected to other electrical devices through connection terminals. For example, the inverter may be electrically connected to the connection terminals through a high-voltage connector as other electrical equipment so as to supply alternating current to the stator windings of the motor.

On the other hand, in order to secure the operation of the motor or improve the performance of the motor, a liquid such as a lubricating oil or a cooling liquid may be used in the motor.

For example, in an oil-cooled motor, components such as a rotor, a rotating shaft, a bearing, and the like of the motor may be lubricated with lubricating oil, and components such as a stator winding of the motor may be cooled. The lubricating oil may approach the connection terminals and the high-voltage connector electrically connected to the connection terminals. This will have an adverse effect on the reliability of the motor. For example, plastic parts at the connection terminals age or crack due to contact with lubricating oil. As another example, the sealability of the sealing member of the high-pressure joint is lowered due to contact with lubricating oil. In addition, the proximity of the lubricating oil to the connection terminals and the high voltage connector may also cause conduction or spark generation between the different phase currents of the motor due to the conductivity of the lubricating oil.

Disclosure of utility model

The object of the present application is to provide an improved separator for an electric motor and an electric motor, whereby the reliability of the electric motor is improved.

According to a first aspect of the present application, there is provided a separator for an electric machine, the separator being configured to be mounted to a housing of the electric machine so as to separate an inner cavity of the housing containing an electrical component from a connection terminal of the electric machine adapted to electrically connect the electrical component with another electrical device, wherein the separator is provided with a separator body configured to block a passage of the housing between the inner cavity and the connection terminal so as to block passage of liquid through the passage, the separator body being formed with at least one wire guide penetrating the separator body in a penetrating direction and configured to allow a wire to pass through the separator body so as to electrically connect the electrical component to the connection terminal.

In one exemplary embodiment, the partition body may include a first body portion formed with at least one first hole portion and a second body portion formed with at least one second hole portion. The first and second body portions may be configured and adapted to be connected to each other such that the at least one first bore portion and the at least one second bore portion, respectively, are combined to the at least one wire guide. The first hole portion and the second hole portion may partially enclose the corresponding wire guide in the circumferential direction, respectively.

In one exemplary embodiment, the first body portion may be formed with an assembly recess, and the second body portion may be formed with an assembly protrusion. The assembly protrusion is configured to fit into the assembly recess such that the first body portion and the second body portion are not relatively movable in a plane perpendicular to a penetrating direction of the wire guide.

Alternatively or additionally, the second body portion may be formed with an assembly recess, and the first body portion may be formed with an assembly protrusion configured to fit into the assembly recess such that the first body portion and the second body portion are not relatively movable in a plane perpendicular to a penetrating direction of the wire guide.

In one exemplary embodiment, the divider may be provided with at least one first mounting hole adapted to mount the first body portion to the housing and at least one second mounting hole adapted to mount the second body portion to the housing. The at least one first mounting hole is aligned with the at least one second mounting hole, respectively, in a state in which the first body portion and the second body portion are connected to each other.

In one exemplary embodiment, the divider may be provided with at least one first lug adapted to mount the first body portion to the housing, the first lug protruding outwardly from the first body portion transversely to the penetrating direction of the wire guide. The first lug may be offset a first distance in the penetration direction relative to the first body portion.

In one exemplary embodiment, the divider may be provided with at least one second lug adapted to mount the second body portion to the housing, the second lug protruding outwardly from the second body portion transversely to the penetrating direction of the wire guide. The second lug may be offset a second distance in the through direction relative to the second body portion.

In one exemplary embodiment, the second distance is greater than the first distance.

In one exemplary embodiment, the first lug and the second lug overlap in the penetrating direction in a state where the first body portion and the second body portion are connected to each other.

In an exemplary embodiment, the separating body is configured as an electrical insulator, whereby the separating body is adapted to electrically isolate wires passing through different wire guides and/or to electrically isolate the wires from the housing.

According to a second aspect of the present application, there is provided an electric machine comprising: a housing formed with an interior cavity; an electrical component at least partially located in the interior cavity; a connection terminal adapted to electrically connect the electrical component with another electrical device; a wire extending through a passage of the housing between the interior cavity and the connection terminal to electrically connect the electrical component to the connection terminal; and a separator according to the present disclosure mounted to the housing such that a separator body of the separator blocks the passage and the wires pass through wire guides of the separator body.

In one exemplary embodiment, the housing is provided with a mounting opening, the channel comprises a first channel section, one end of the first channel section being open to the inner cavity, the other end of the first channel section being open to the mounting opening, the divider being configured to be mounted via the mounting opening and to block the first channel section.

In an exemplary embodiment, the electrical machine comprises a stator and a rotor at least partially located in the cavity, the stator being provided with a winding structure, the electrical component comprising the winding structure.

In one exemplary embodiment, the connection terminal is configured to be adapted to electrically connect with an inverter.

According to the present application, with the separator, it is possible to prevent the liquid in the inner cavity of the motor from approaching the connection terminal. The liquid may lubricate and/or cool components of the motor within the interior cavity during operation of the motor. Without the provision of a divider, the liquid may pass from the inner chamber through the channel to the connection terminals, for example due to splashing of the liquid or tilting of the motor. By means of the separator, the connection terminal and thus the electrical element connected to the connection terminal (e.g. the high voltage connector) can be protected from liquid from the inner cavity. Thereby, the reliability of the motor can be improved.

Drawings

The principles, features and advantages of the present application may be better understood by describing the present application in more detail with reference to the drawings. The drawings include:

Fig. 1A schematically shows an electric machine according to an exemplary embodiment of the application in a cross-sectional view;

FIG. 1B schematically illustrates a partial enlarged view of FIG. 1A;

FIG. 2A schematically illustrates a divider according to an exemplary embodiment of the present application;

FIG. 2B schematically illustrates the divider shown in FIG. 2A in an exploded view;

Fig. 3A and 3B schematically show top and right views of a divider according to an exemplary embodiment of the present application;

Fig. 4 schematically shows an electric machine according to an exemplary embodiment of the application;

Fig. 5A, 5B, 5C and 5D schematically show enlarged partial views of the circled portion of fig. 4;

FIG. 6 schematically illustrates a portion of an electric machine according to an exemplary embodiment of the present application in a partial enlarged view similar to FIG. 1B; and

Fig. 7 schematically shows a divider according to an exemplary embodiment of the present application.

List of reference numerals

1. Shell body

11. Inner cavity

12. Channel

121. A first channel section

122. Second channel section

13. Mounting opening

14. Shell mounting hole

15. Connection chamber

2. Electrical component

21. Winding structure

3. Connection terminal

4. Conducting wire

5. Separator

51. Partition main body

511. A first body part

512. A second body portion

52. Wire guide

521. A first hole part

522. A second hole portion

53. Assembling concave part

54. Assembling convex part

55. First mounting hole

56. Second mounting hole

57. First lug

58. Second lug

59. Sealing part

591. First sealing lip

592. Second sealing lip

6. Sealing cover

91. Inverter with a power supply

92. High-voltage connector

93. Screw bolt

Detailed Description

In order to make the technical problems, technical solutions and advantageous technical effects to be solved by the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and a plurality of exemplary embodiments. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the application.

It should be appreciated that the expressions "first", "second", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any particular order of number of technical features indicated. Features defining "first", "second" or "first" may be expressed or implied as including at least one such feature.

Fig. 1A schematically shows an electric machine according to an exemplary embodiment of the application in a cross-sectional view. Fig. 1B schematically shows a partial enlarged view of fig. 1A. The motor may be provided on a vehicle, for example. The inventive concept is also applicable to other applications or other types of electric machines. For clarity, some components of the motor are omitted from the drawings.

As shown in fig. 1A, the motor includes: a housing 1 formed with an inner cavity 11; an electrical component 2 at least partially located in the interior cavity 11; a connection terminal 3 adapted to electrically connect the electrical component 2 with another electrical device; and a wire 4 extending through a passage 12 of the housing 1 between the inner cavity 11 and the connection terminal 3, thereby electrically connecting the electrical component 2 to the connection terminal 3.

In this embodiment, the motor may include a stator and a rotor at least partially located in the interior cavity 11. The stator may be provided with a winding structure 21. The electrical component 2 may comprise said winding structure 21. One end of the wire 4 may be electrically connected to the winding structure 21, and the other end of the wire 4 may be electrically connected to the connection terminal 3. The further electrical device represents other electrical devices than the motor. Alternatively, the connection terminal 3 may be configured to be adapted to be electrically connected with the inverter 91 as the other electrical device, for example, with the inverter 91 through the high-voltage connector 92.

The motor further comprises a separator 5. The separator 5 is configured to be mounted to the housing 1 of the motor so as to separate the inner cavity 11 of the housing 1, which accommodates the electrical component 2, from the connection terminal 3. As can be seen in connection with fig. 1A and 1B, the separator 5 is provided with a separating body 51 which is configured to block the passage 12 between the inner cavity 11 and the connection terminal 3 so as to block the passage of liquid through the passage 12. The partition body 51 is formed with at least one wire guide 52, which at least one wire guide 52 penetrates the partition body 51 in the penetrating direction D and is configured to be adapted to allow the wires 4 to penetrate the partition body 51 to electrically connect the electrical component 2 to the connection terminals 3.

With the separator 5, the liquid in the inner chamber 11 can be prevented from approaching the connection terminal 3. The liquid may comprise, for example, lubricating oil and/or cooling liquid. In particular, the liquid may serve both a lubricating function and a cooling function. The motor may in particular be an oil-cooled motor. During operation of the motor, the liquid may lubricate and/or cool components of the motor within the interior chamber 11. In the case where the separator 5 is not provided, for example, due to liquid splashing or tilting of the motor, the liquid may approach the connection terminal 3 from the inner cavity 11 through the passage 12, see the hollow arrow in fig. 1A. This causes problems such as component deterioration, deterioration of sealing performance of the sealing material, and insulation failure of the connecting terminal 3 and its surrounding parts (for example, the high-voltage connector 92). By means of the separator 5, the connection terminal 3 and thus the electrical components connected to the connection terminal 3 (e.g. the high-voltage connector 92) can be protected from the liquid from the inner cavity 11. Therefore, the reliability of the motor can be improved, and the service life of the motor can be prolonged.

In the case of using the separator 5, there is basically no need to change the structure of other parts of the motor. For example, the structure of the passage 12 of the housing 1 does not need to be changed. The channel 12 is still of a size and shape that facilitates the installation of the wire 4. The total cross-sectional area of the at least one wire guide 52 may be significantly smaller than the cross-sectional area of the passage 12 at the location of the separator body 51. The cross-sectional area mentioned above can be measured in a plane perpendicular to the direction of penetration D.

The at least one wire guide 52 may be shaped and sized to allow the wire 4 to pass therethrough. Alternatively, the shape and size of the wire guide 52 may be configured to conform to the profile of the cross section of the wire 4 at the location passing through the wire guide 52, so that no or only a small gap is left between the wire 4 and the inner peripheral profile of the wire guide 52.

It should be understood that "the partition body blocks the passage" does not mean that the partition body 51 completely closes the passage 12. Instead, the partitioning body 51 can effectively block the liquid attempting to pass through the passage 12. For example, the partition body 51 can enclose 50%, in particular more than 80% of the cross section of the channel 12.

The separator 5 may also be used for protecting the connection terminal 3 of other uses of the motor, as long as the connection terminal 3 is adapted to electrically connect the electrical component 2 in the inner cavity 11 with another electrical device outside the motor. For example, the connection terminal 3 may be used to electrically connect the electrical component 2 to a low voltage connector to transmit a low voltage signal.

The separating body 51 can in particular be configured as an electrical insulator, so that the separating body 51 electrically insulates the wires 4 passing through the different wire guides 52 and/or the wires 4 from the housing 1. On the basis of the provision of the spacers 5, the inventors have further found that, in the case of the wires 4 themselves already being provided with an external insulating layer, configuring the spacer body 51 as an electrical insulator also significantly improves the electrical insulation between the different wires 4 and/or between the wires 4 and the housing 1. In other words, the inventors realized that in the case where the separator 5 is configured as an electrical conductor, even if the wires 4 themselves are provided with an external insulating layer, there is still a risk of electrical connection between different wires 4 or between the wires 4 and the housing 1 through the separator 5. By configuring the separating body 51 as an electrical insulator, this risk can be significantly reduced.

According to an exemplary embodiment of the present application, the partition body 51 may be made of an insulating material, such as an insulating plastic or rubber material. Alternatively, the separator 5 may be integrally made of an insulating material.

Fig. 2A schematically shows a separator 5 according to an exemplary embodiment of the application.

As shown in fig. 2A, the partition main body 51 of the separator 5 may be formed with a plurality of wire guides 52, for example, three wire guides 52. The three wire guides 52 may be used to allow three wires 4 to pass through, respectively (see fig. 5D), the three wires 4 being particularly useful for conducting three-phase alternating current. The number of the at least one wire guide 52 may also include more or less than three. Optionally, each of the at least one wire guide 52 is adapted to allow one wire 4 to pass through. This helps to isolate the wires 4 from each other in an electrically insulating manner. In other embodiments, it is also possible that a plurality of wires 4 pass through the same wire guide 52.

Fig. 2B schematically shows the separator 5 shown in fig. 2A in an exploded view.

As can be seen in connection with fig. 2A and 2B, the partition body 51 may include a first body portion 511 and a second body portion 512. The first body portion 511 may be formed with at least one first hole portion 521, and the second body portion 512 may be formed with at least one second hole portion 522. The first and second body portions 511 and 512 may be configured to be connectable to each other such that the at least one first hole portion 521 is combined with the at least one second hole portion 522, respectively, to the at least one wire guide 52. The first hole portion 521 and the second hole portion 522 each only partially enclose the corresponding wire guide 52 in the circumferential direction. In other words, neither the first hole portion 521 nor the second hole portion 522 surrounds the entire circumference in the circumferential direction. Here, the "circumferential direction" is relative to the wire guide 52 or the penetration direction D of the wire guide 52.

Thereby, the separator 5 can be easily installed. For example, in the case where the size of the end portion of the wire 4 is larger than the size of the intermediate portion of the wire 4, the intermediate portion of the wire 4 may be made to enter the first hole portion 521 and the second hole portion 522, respectively, transversely to the penetrating direction D without passing the end portion of the wire 4 through the wire guide 52. Thus, the wire guide 52 need not be large enough to allow the ends of the wires 4 to pass through. This helps to prevent liquid from passing through the separator 5 via the wire guides 52.

In addition, during assembly of the motor, the wires 4 may be first mounted in place and then the separator 5 mounted. After both ends of the wire 4 are connected to the electrical component 2 and the connection terminal 3 within the inner cavity 11, respectively, for example, by a soldering process, the first body portion 511 and the second body portion 512 of the separator 5 may be mounted to the housing 1, and the wire 4 is passed through the wire guide 52 of the separator 5. Therefore, the assembling process of the motor is not complicated.

The first and second hole portions 521 and 522, respectively, may span an angular range of 180 ° in the circumferential direction. For example, the first and second hole portions 521 and 522 may be formed as substantially semicircular recesses. Thus, the first bore portion 521 may be combined with the second bore portion 522 into a generally circular wire guide 52. In further embodiments, the first and second bore portions 521, 522 may also span unequal angular ranges in the circumferential direction.

As shown in fig. 2B, the first body portion 511 may be formed with an assembly recess 53, and the second body portion 512 may be formed with an assembly protrusion 54. The assembly protrusion 54 may be configured to be capable of being inserted into the assembly recess 53 such that the first body portion 511 and the second body portion 512 are not relatively movable in a plane perpendicular to the penetration direction D, as shown in fig. 2A. By means of the assembling concave portion 53 and the assembling convex portion 54, it is advantageous to improve the strength of the connection of the first body portion 511 and the second body portion 512, and also to facilitate the assembling process of the separator 5.

In a cross section perpendicular to the penetrating direction D, the assembly concave portion 53 and the assembly convex portion 54 may have, for example, a substantially trapezoidal cross section.

Alternatively, the assembly recess 53 is located between adjacent first bore portions 521 and the assembly projection 54 is located between adjacent second bore portions 522.

Alternatively or additionally, the second body portion 512 may be formed with an assembly recess 53 and the first body portion 511 may be formed with an assembly protrusion 54, wherein the assembly protrusion 54 is configured to be able to be inserted into the assembly recess 53 such that the first body portion 511 and the second body portion 512 are not relatively movable in a plane perpendicular to the penetrating direction D of the wire guide 52.

As shown in fig. 2B, the divider 5 may be provided with at least one first mounting hole 55 adapted to mount the first body portion 511 to the housing 1 and at least one second mounting hole 56 adapted to mount the second body portion 512 to the housing 1. Referring to fig. 2A, in a state in which the first body portion 511 and the second body portion 512 are connected to each other, the at least one first mounting hole 55 may be aligned with the at least one second mounting hole 56, respectively. Thus, the first and second mounting holes 55 and 56 may be penetrated by a common mounting member, such as a screw 93 (see fig. 5D), so as to fix the first and second body portions 511 and 512 to the housing 1 (to be described further below). In particular, the at least one first mounting hole 55 is coaxial with the at least one second mounting hole 56, respectively.

As shown in fig. 2B, the divider 5 may be provided with, for example, at least one first lug 57 for mounting the first body portion 511 to the housing 1. The first lugs 57 may protrude outwardly from the first body portion 511 transverse to the penetration direction D. In this embodiment, two first lugs 57 extend outwardly from the first body portion 511 on opposite sides, respectively.

Alternatively or additionally, the divider 5 may be provided with at least one second lug 58 for mounting the second body portion 512 to the housing 1. The second tab 58 may protrude outwardly from the second body portion 512 transverse to the direction D of penetration of the wire guide 52. Here, two second lugs 58 extend outwardly from the second body portion 512 on opposite sides, respectively.

The first lug 57 can in particular overlap the second lug 58 in the through direction D. Alternatively, the first mounting hole 55 is formed in the first lug 57, and the second mounting hole 56 is formed in the second lug 58. In the case where the first lugs 57 overlap the second lugs 58, the first mounting holes 55 may be aligned with the second mounting holes 56.

Fig. 3A and 3B schematically show top and right views of the divider 5 according to an exemplary embodiment of the present application.

As shown in fig. 3A, the first and second lugs 57 and 58 may overlap in the penetrating direction D.

Fig. 3B shows that the first lug 57 may be offset in said through direction D by a first distance D1 with respect to the first body portion 511. Alternatively or additionally, the second lug 58 may be offset relative to the second body portion 512 in the through direction D by a second distance D2. Alternatively, the second distance d2 may be greater than the first distance d1.

Fig. 4 schematically shows a perspective view of an electric machine according to an exemplary embodiment of the application.

In the embodiment shown in fig. 4, the housing 1 may be provided with a mounting opening 13. The motor may further comprise a cover 6 for closing the mounting opening 13. The mounting opening 13 is closed by the cover 6. With the mounting opening 13, the mounting of the lead 4 and the separator 5 and the like can be facilitated.

Referring to fig. 1A and 1B, the channel 12 may include a first channel segment 121. One end of the first channel section 121 may be open to the inner cavity 11 and the other end of the first channel section 121 is open to the mounting opening 13. The divider 5 may be configured to be mountable via the mounting opening 13 and to block the first channel section 121. Thereby, the mounting of the separator 5 can be facilitated. In particular, the separation body 51 of the separator 5 may be embedded within the first channel segment 121, thereby helping to reliably prevent liquid from passing through the channel 12.

Fig. 5A, 5B, 5C and 5D schematically show enlarged partial views of the circled portion of fig. 4, with the cover 6 removed to clearly illustrate the process of installing the divider 5.

As shown in fig. 5A, the cover 6 is removed so that the mounting opening 13 is opened outward. It can be seen that the lead 4 can extend through the passage 12 into the lumen 11. Both ends of the wire 4 have been connected to the electrical component 2 and the connection terminal 3, respectively, within the inner cavity 11, for example, by a soldering process. In the state shown in fig. 5A, the passage 12 is clear.

As an example, fig. 5B, 5C, and 5D schematically illustrate the mounting process of the separator. The separator may have a structure as shown in fig. 2A and 2B.

As shown in fig. 5B, the lead 4 may be first inserted into the first hole portion 521 of the first body portion 511, and the first body portion 511 may be disposed on the housing 1. In this embodiment, three wires 4 are respectively embedded in three first hole portions 521.

Alternatively, the first body portion 511 may have an outer contour on the side facing away from the first bore portion 521, which outer contour is adapted to the housing 1, so that the first body portion 511 can be pre-positioned on the housing 1 by means of the outer contour. The first lug 57 can rest on the housing 1 in the direction of penetration D. The first mounting holes 55 of the first body portion 511 may be aligned with the housing mounting holes 14 on the housing 1, for example.

Here, it is not necessary that the first body portion 511 is predetermined on the housing 1. Instead, the first body portion 511 and the second body portion 512 may be mounted together in place on the housing 1 after the first body portion 511 and the second body portion 512 sandwich the wire 4 therebetween and are connected to each other.

As shown in fig. 5C, the lead 4 may be inserted into the second hole portion 522 of the second body portion 512 and the second body portion 512 may be mounted to the first body portion 511. For example, the second body portion 512 may be plugged into the second body portion 512 in the penetrating direction D such that the assembling protrusion 54 of the second body portion 512 is fitted into the assembling recess 53 of the first body portion 511. Thereby, the first body portion 511 and the second body portion 512 are not relatively movable in a plane perpendicular to the penetrating direction D. At the same time, the first mounting holes 55 can be aligned with the second mounting holes 56. The second lug 58 may press against the first lug 57.

Then, as shown in fig. 5D, for example, a screw 93 passes through the first mounting hole 55 and the second mounting hole 56 and is screwed into the housing mounting hole 14. Thereby, the first body portion 511 and the second body portion 512 can be fixed to the housing 1.

In further embodiments, the divider 5 may also be secured to the housing 1 by other means, such as riveting or welding.

Fig. 6 schematically shows a part of a motor according to an exemplary embodiment of the present application in a partial enlarged view similar to fig. 1B.

The housing 1 may be provided with a connection chamber 15 adapted to receive the connection terminal 3, the channel 12 being configured to be able to communicate the inner cavity 11 to the connection chamber 15. The housing 1 may also be provided with an outwardly openable mounting opening 13, which can be closed by the cover 6. The connection chamber 15 can be provided with a plug opening on the side facing away from the mounting opening 13, from which plug opening a high-voltage connector can be inserted for electrically conductive connection with the connection terminal 3. The channel 12 may comprise a first channel section 121 communicating the inner cavity 11 to the mounting opening 13 and a second channel section 122 communicating the first channel section 121 to the connection chamber 15.

As shown in fig. 6, a divider 5 may also be installed at the second channel section 122 to block the channel 12.

Fig. 7 schematically shows a divider 5 according to an exemplary embodiment of the present application.

The separator 5 may be provided with a sealing 59, which sealing 59 is arranged around the through direction (here perpendicular to the drawing plane) within the wire guide 52 in order to achieve a sealed connection between the wire 4 and the separator 5.

For example, the seal 59 may include a first sealing lip 591 that is at least partially located within the first bore portion 521 of the first body portion 511. The seal 59 may also include a second sealing lip 592 at least partially disposed within the second bore portion 522 of the second body portion 512. The first sealing lip 591 and/or the second sealing lip 592 may be formed as a unitary piece with the first body portion 511 and/or the second body portion 512, respectively, such as by over-molding. For example, the first seal lip 591 and/or the second seal lip 592 can wrap around at least a portion of the divider body 51. Alternatively, the first seal lip 591 and/or the second seal lip 592 may be formed as separate components with respect to the partition body 51 and may be mountable to the partition body 51. The first seal lip 591 and/or the second seal lip 592 are formed to have a greater elasticity than the first body portion 511 and/or the second body portion 512.

In the assembled state, the first sealing lip 591 may surround the wire 4 passing through the wire guide 52 in the circumferential direction together with the second sealing lip 592.

Although specific embodiments of the application have been described in detail herein, they are presented for purposes of illustration only and are not to be construed as limiting the scope of the application. Various substitutions, alterations, and modifications can be made without departing from the spirit and scope of the application. In a specific implementation, the features may be combined with one another where technically feasible according to the actual requirements. In particular, features from different embodiments may also be combined with one another.

Claims (10)

1. A separator for an electric machine, characterized in that the separator (5) is configured to be mounted to a housing (1) of the electric machine, such that an inner cavity (11) of the housing (1) accommodating an electric component (2) is separated from a connection terminal (3) of the electric machine, which is adapted to electrically connect the electric component (2) with another electric device, wherein the separator (5) is provided with a separation body (51) configured to block a passage (12) of the housing (1) between the inner cavity (11) and the connection terminal (3) such that liquid is blocked from passing through the passage (12), the separation body (51) being formed with at least one wire guide (52), which wire guide (52) penetrates the separation body (51) in a penetrating direction and is configured to allow a wire (4) to pass through the separation body (51) such that the electric component (2) is electrically connected to the connection terminal (3).

2. The separator of claim 1, wherein the separator is configured to provide a plurality of flow channels,

The separating body (51) comprises a first body part (511) and a second body part (512), the first body part (511) is formed with at least one first hole part (521), the second body part (512) is formed with at least one second hole part (522), the first body part (511) and the second body part (512) are configured to be connected to each other such that the at least one first hole part (521) is combined with the at least one second hole part (522) into the at least one wire guide (52), respectively, wherein the first hole part (521) and the second hole part (522) partly enclose the corresponding wire guide (52) in the circumferential direction, respectively.

3. The separator of claim 2, wherein the separator is configured to provide a plurality of flow channels,

The first body portion (511) is formed with an assembly recess (53), the second body portion (512) is formed with an assembly protrusion (54), the assembly protrusion (54) is configured to fit into the assembly recess (53) such that the first body portion (511) and the second body portion (512) are not relatively movable in a plane perpendicular to a penetrating direction of the wire guide (52); and/or

The second body portion (512) is formed with an assembly recess (53), the first body portion (511) is formed with an assembly protrusion (54), and the assembly protrusion (54) is configured to fit into the assembly recess (53) such that the first body portion (511) and the second body portion (512) are not relatively movable in a plane perpendicular to a penetrating direction of the wire guide (52).

4. A separator as claimed in claim 2 or 3, wherein,

The divider (5) is provided with at least one first mounting hole (55) adapted to mount the first body part (511) to the housing (1) and at least one second mounting hole (56) adapted to mount the second body part (512) to the housing (1), wherein the at least one first mounting hole (55) is aligned with the at least one second mounting hole (56), respectively, in a state in which the first body part (511) and the second body part (512) are interconnected.

5. A separator as claimed in claim 2 or 3, wherein,

The separator (5) is provided with at least one of the following:

At least one first lug (57) adapted to mount the first body portion (511) to the housing (1), the first lug (57) protruding outwardly from the first body portion (511) transversely to a penetration direction of the wire guide (52), the first lug (57) being offset relative to the first body portion (511) by a first distance in said penetration direction;

at least one second lug (58) adapted to mount the second body portion (512) to the housing (1), the second lug (58) protruding outwardly from the second body portion (512) transversely to a through direction of the wire guide (52), the second lug (58) being offset a second distance in relation to the second body portion (512) in said through direction.

6. The separator of claim 5, wherein the separator is configured to provide a plurality of flow channels,

The second distance is greater than the first distance; and/or

In a state where the first body portion (511) and the second body portion (512) are connected to each other, the first lug (57) and the second lug (58) overlap in the penetrating direction.

7. The separator according to any one of claims 1-3, 6, wherein,

The separating body (51) is configured as an electrical insulator, whereby the separating body (51) is adapted to electrically isolate the wires (4) passing through the different wire guides (52) and/or to electrically isolate the wires (4) from the housing (1).

8. An electric machine, the electric machine comprising:

A housing (1) formed with an inner cavity (11);

An electrical component (2) at least partially located in the interior cavity (11);

A connection terminal (3) adapted to electrically connect the electrical component (2) with a further electrical device;

A wire (4) extending through a passage (12) of the housing (1) between the inner cavity (11) and the connection terminal (3) to electrically connect the electrical component (2) to the connection terminal (3); and

The separator (5) according to any of claims 1-7, mounted to the housing (1) such that the separating body (51) of the separator (5) blocks the channel (12) and the wires (4) pass through the wire guide (52) of the separating body (51).

9. The motor of claim 8, wherein the motor is configured to control the motor,

The housing (1) is provided with a mounting opening (13), the channel (12) comprises a first channel section (121), one end of the first channel section (121) is open to the inner cavity (11), the other end of the first channel section (121) is open to the mounting opening (13), and the divider (5) is configured to be adapted to be mounted via the mounting opening (13) and to block the first channel section (121).

10. An electric machine according to claim 8 or 9, characterized in that,

The electric machine comprises a stator and a rotor at least partially located in the cavity (11), the stator being provided with a winding structure (21), the electric component (2) comprising the winding structure (21); and/or

The connection terminal (3) is configured to be adapted to be electrically connected to the inverter (91).