CN215835628U - Casing, front drive power assembly, back drive power assembly and vehicle - Google Patents

Abstract

The utility model discloses a shell, a front driving power assembly, a rear driving power assembly and a vehicle, wherein the shell is used for a motor controller and comprises: the top wall of the top cover is provided with a first groove to be processed; the top of the lower shell is opened, the top cover is connected with the lower shell to cover the opened end of the lower shell, and a through opening is formed in the side wall of the lower shell. The shell can be used as a universal structure of the shells of the motor controllers of the front driving power assembly and the rear driving power assembly, so that the shells of the motor controllers of the front driving power assembly and the rear driving power assembly only need one set of die-casting die, the die cost and the verification cost are saved, the development period is shortened, and the product reliability is improved.

Description

Casing, front drive power assembly, back drive power assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a shell, a front driving power assembly, a rear driving power assembly and a vehicle.

Background

With the continuous development of new energy vehicles, particularly pure electric vehicles, the trend of integration high integration of a future powertrain system is very obvious. Generally speaking, core components in a power assembly system are integrated, so that the power density of the system can be improved, the energy loss in each link is reduced, the energy efficiency is improved, the cost is reduced, the size is reduced, and the light weight is realized.

However, in the related art, the housings of the motor controllers of the front driving force assembly and the rear driving force assembly need to be designed into different structures, so that two sets of die-casting molds are needed for the motor controllers, and the motor controllers of the driving force assembly and the rear driving force assembly need to be designed and verified respectively, so that the mold cost and the verification cost are high, and the development period is long.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a shell which can be used as a universal structure of the shell of the motor controller of the front driving power assembly and the rear driving power assembly, so that the shells of the motor controllers of the front driving power assembly and the rear driving power assembly only need the same set of die-casting die, the die cost and the verification cost are saved, the development period is shortened, and the product reliability is improved.

The utility model also provides a front driving assembly with the shell.

The utility model also provides a rear driving force assembly with the shell.

The utility model also provides a vehicle with the front driving assembly and/or the rear driving assembly.

According to an embodiment of the present invention, a housing for a motor controller, the housing includes: the top wall of the top cover is provided with a first groove to be processed; the top of the lower shell is opened, the top cover is connected with the lower shell to cover the opened end of the lower shell, and a through opening is formed in the side wall of the lower shell.

According to the shell provided by the embodiment of the utility model, the first groove to be processed is arranged on the top wall, when the first groove is provided with the first mounting hole, the shell can be used as a shell of the front-drive motor controller, and when the first mounting hole is not arranged on the first groove, the shell can be used as a shell of the rear-drive motor controller, so that the shell can be used as a universal structure of the shells of the motor controllers of the front-drive power assembly and the rear-drive power assembly, the shell of the motor controllers of the front-drive power assembly and the rear-drive power assembly only needs one set of die-casting die, the die cost and the verification cost are saved, the development period is shortened, and the product reliability is improved.

In some embodiments of the present invention, a second groove to be processed is further disposed on the top cover, and the second groove is spaced apart from the first groove.

In some embodiments of the utility model, the top cover, the first recess and the second recess are an integrally formed piece.

A front drive power assembly according to an embodiment of the utility model comprises: the front-drive motor controller comprises a front-drive controller body and the shell, wherein the front-drive controller body is positioned in the shell, and a first mounting hole is formed in the first groove; the power distribution unit is arranged above the front-drive motor controller and is provided with a first connecting part, and the first connecting part extends into the first mounting hole and is electrically connected with the front-drive controller body.

According to the front drive power assembly provided by the embodiment of the utility model, the first mounting hole is formed in the first groove of the shell, so that the electric connection between the electric power distribution unit and the front drive controller body can be realized, meanwhile, the shell is strong in universality, and the cost of a die and the verification cost are low, so that the cost of the front drive power assembly is favorably reduced.

In some embodiments of the utility model, the front drive powertrain further comprises: a first threaded fastener located within the through-bore, the first threaded fastener connected to the precursor controller body through the first connection.

In some embodiments of the utility model, the front drive powertrain further comprises: the sealing device comprises a first sealing piece, wherein a first screwing part is arranged at a through hole of the shell, a second screwing part is arranged on the first sealing piece, and the first screwing part and the second screwing part are in threaded connection so as to install the first sealing piece into the through hole.

A rear drive force assembly according to an embodiment of the present invention includes: the rear-drive motor controller comprises a rear-drive controller body and the shell, wherein the rear-drive controller body is positioned in the shell; the direct current connector is located on one side of the rear-drive motor controller in the circumferential direction and is provided with a second connecting portion, and the second connecting portion extends into the through hole of the shell and is electrically connected with the rear-drive controller body.

According to the rear driving force assembly provided by the embodiment of the utility model, the electric connection between the rear driving controller body and the direct current connector can be realized, meanwhile, the shell is strong in universality, and the cost of the die and the verification cost are low, so that the cost of the rear driving force assembly is favorably reduced.

In some embodiments of the present invention, a second groove to be processed is further disposed on the top cover, the second groove is spaced apart from the first groove, a second mounting hole is disposed at the second groove, and the rear driving force assembly further includes: and the second threaded fastener is positioned in the second mounting hole and penetrates through the second connecting part to be connected with the back-drive controller body.

In some embodiments of the utility model, the rear drive power assembly further comprises: the second sealing piece, second mounting hole department of casing is equipped with first spiro union structure, first sealing piece is equipped with second spiro union structure, first spiro union structure with second spiro union structure screw thread links to each other in order to incite somebody to action the second sealing piece is installed in the second mounting hole.

A vehicle according to an embodiment of the present invention includes: the front drive power assembly described above, and/or the rear drive power assembly described above.

According to the vehicle provided by the embodiment of the utility model, the front driving power assembly and/or the rear driving force assembly are arranged, the shell of the motor controller of the front driving power assembly and/or the rear driving force assembly is strong in universality, and the cost of a mold and the cost of verification are low, so that the overall cost of the vehicle is favorably reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a structural schematic view of a lower housing of a housing according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a top cover of a housing according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a front drive powertrain according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a rear driving force assembly according to an embodiment of the present invention.

Reference numerals:

a housing 10;

a top cover 11; a first groove 111; a first mounting hole 1111;

a second groove 112; a second mounting hole 1121; the first threaded connection 1122;

a lower case 12; a through-hole 121; a first screw portion 122;

a front drive power assembly 100;

a front drive motor controller 101;

a power distribution unit 102; a first connection portion 1021;

a first threaded fastener 103;

a first seal 104; a second screw portion 1041;

a seal ring 105;

a rear drive force assembly 200;

a rear drive motor controller 201;

a DC connector 202; a second connection portion 2021;

a second threaded fastener 203;

a second seal 204; the second threaded connection 2041.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

The housing 10, the front drive power assembly 100, the rear drive power assembly 200 and the vehicle according to the embodiment of the utility model will be described below with reference to fig. 1 to 4.

Referring to fig. 1 and 2, in a case 10 for a motor controller according to an embodiment of the present invention, the case 10 may include a top cover 11 and a lower case 12, a top wall of the top cover 11 is provided with a first groove 111 to be processed, a top of the lower case 12 is opened, the top cover 11 is connected to the lower case 12 to cover an opened end of the lower case 12, and a sidewall of the lower case 12 is provided with a through hole 121. Wherein the top cover 11 and the lower case 12 can be respectively formed by casting. For example, as shown in fig. 1, two through holes 121 are provided, and the two through holes 121 are provided on the same side wall of the lower case 12 at a distance.

Specifically, the inventor found in practical research that, in the related art, the integrated powertrain generally structurally integrates the motor, the reducer and the motor controller, i.e., a three-in-one scheme, which can be applied to the arrangement of the front drive powertrain and the rear drive powertrain of the whole vehicle. However, other high voltage units such as DC/DC, a vehicle-mounted charger, and a high voltage distribution box require additional layout space in the cabin of the vehicle, where DC-DC is a device for converting electric energy of one voltage value into electric energy of another voltage value in a DC circuit, and is formed by assembling a small surface-mount integrated circuit and micro electronic components into a whole by using microelectronic technology. Generally, an additional two-layer bracket is required to be provided in a front cabin of a whole vehicle to install a DC/DC, a vehicle-mounted charger and a high-voltage distribution box, and a high-voltage wire harness is also required to connect the high-voltage distribution box with an MCU (micro controller Unit), so that the internal layout of the whole vehicle is messy, the weight is increased, the cost is increased, and the maintainability is poor.

Therefore, the inventor proposes a scheme that a three-in-one power assembly is further integrated with a DC/DC, a vehicle-mounted charger and a high-voltage distribution box, wherein the DC/DC, the vehicle-mounted charger and the high-voltage distribution box are integrated into a shell and are called as a power distribution unit 102. As shown in fig. 3, in a front cabin of the pure electric vehicle, a direct current provided by a battery is firstly input into the power distribution unit 102, and a first connection portion 1021 of the power distribution unit 102 extends into an interior of a housing of the front-wheel drive motor controller 101 from top to bottom to be connected with a direct current copper bar of a front-wheel drive controller body (not shown) to provide a direct current input for the front-wheel drive controller body.

However, for the rear-drive vehicle type or the four-drive vehicle type of the pure electric vehicle, only three-in-one power assembly is arranged in the general rear engine room. As shown in fig. 4 below, the dc power supplied from the battery is directly input to the inside of the rear-drive motor controller 201 through the dc connector 202, and the dc connector 202 is connected to one side of the rear-drive motor controller 201 in the circumferential direction.

It can be seen that the direct current input structures of the front drive motor controller 101 of the front drive power assembly 100 and the rear drive motor controller 201 of the rear drive power assembly 200 are different, so that the housings of the front drive motor controller 101 and the rear drive motor controller 201 need to be designed into different structures, if a conventional thought is adopted, two sets of die casting molds are inevitably needed for the housings of the front drive motor controller 101 and the rear drive motor controller 201, and the front drive motor controller 101 and the rear drive motor controller 201 need to be designed and verified respectively, so that the platform power assembly design in a real sense cannot be realized.

Aiming at the problem that the arrangement schemes of the front driving power assembly 100 of the front engine room and the rear driving power assembly 200 of the rear engine room are different, so that two sets of motor controller shell die-casting molds are needed due to different direct current connection schemes of the motor controllers, the inventor creatively provides a shell 10 for the motor controller, by arranging a first groove 111 to be processed on the top wall, when a first mounting hole 1111 is formed on the first groove 111, the shell 10 can be used as a shell of a front driving motor controller 101 (refer to fig. 3), and when the first mounting hole 1111 is not formed on the first groove 111, the shell 10 can be used as a shell of a rear driving motor controller 201 (refer to fig. 4), therefore, the shell 10 can be used as a universal structure of the shells of the motor controllers of the front driving power assembly 100 and the rear driving power assembly 200, so that the shells of the motor controllers of the front driving power assembly 100 and the rear driving power assembly 200 only need the same die-casting mold, thereby saving the cost of the die and the verification cost, shortening the development period and improving the reliability of the product.

In some embodiments of the present invention, referring to fig. 2, a second groove 112 to be processed is further formed on the top cover 11, and the second groove 112 is spaced apart from the first groove 111. The first groove 111 and the second groove 112 are respectively formed as oblong grooves.

It is understood that, referring to fig. 4, when the second mounting hole 1121 is formed at the second groove 112 and the first mounting hole 1111 is not formed at the first groove 111, the casing 10 may serve as a housing of the rear drive motor controller 201; referring to fig. 3, when the second mounting hole 1121 is not formed in the second groove 112 and the first mounting hole 1111 is formed in the first groove 111, the case 10 may serve as a housing of the front drive motor controller 101, and, referring to fig. 4, when the second mounting hole 1121 is formed in the second groove 112, it is convenient to electrically connect the second connection portion 2021 of the dc connector 202 and the rear drive motor controller 201.

In some embodiments of the present invention, referring to fig. 3, the top cover 11, the first groove 111 and the second groove 112 are integrally formed. The structure of an organic whole piece not only can guarantee the structure of top cap 11, first recess 111 and second recess 112, the stability of performance, and convenient shaping, it is simple to make, and unnecessary assembly part and connection process have been saved, the assembly efficiency of top cap 11, first recess 111 and second recess 112 has been improved greatly, guarantee the reliability that top cap 11, first recess 111 and second recess 112 are connected, moreover, the bulk strength and the stability of the structure of integrative formation are higher, it is more convenient to assemble, the life-span is longer.

Referring to fig. 3, the front drive powertrain 100 according to the embodiment of the utility model includes a front drive motor controller 101 and an electric power distribution unit 102, the front drive motor controller 101 includes a front drive controller body (not shown) and a housing 10 according to the above-mentioned embodiment of the utility model, the front drive controller body is located in the housing 10, a first mounting hole 1111 is provided at the first groove 111, the electric power distribution unit 102 is disposed above the front drive motor controller 101, the electric power distribution unit 102 has a first connection portion 1021, and the first connection portion 1021 extends into the first mounting hole 1111 and is electrically connected with the front drive controller body. For example, the first connection portion 1021 can be a dc copper bar, and the first connection portion 1021 extends into the first mounting hole 1111 to be electrically connected with a dc input copper bar of the front-wheel controller body.

It can be understood that, according to the front drive power assembly 100 of the embodiment of the present invention, the first mounting hole 1111 is disposed at the first groove 111 of the housing 10, so that the electrical connection between the power distribution unit 102 and the front drive controller body can be achieved, and meanwhile, the housing 10 has strong versatility and low mold and verification costs, thereby being beneficial to reducing the cost of the front drive power assembly 100.

Optionally, in some examples, referring to fig. 3, the precursor motor controller 101 further comprises a sealing ring 105, the sealing ring 105 is disposed around the first mounting hole 1111, and an upper surface of the sealing ring 105 is in contact with a bottom wall of the power distribution unit 102. When the front drive motor controller 101 and the power distribution unit 102 are assembled together, the upper surface of the sealing ring 105 is in contact with the bottom wall of the power distribution unit 102, the lower surface of the sealing ring 105 is in contact with the top wall of the front drive motor controller 101, the connection between the front drive motor controller 101 and the power distribution unit 102 can be sealed by arranging the sealing ring 105, the sealing effect of the connection between the front drive motor controller 101 and the power distribution unit 102 can be improved, the sealing performance of the front drive power assembly 100 can be improved, and the normal work of the front drive power assembly 100 can be ensured.

In some embodiments of the present invention, referring to FIG. 3, the front drive powertrain 100 further includes a first threaded fastener 103, the first threaded fastener 103 being located within the through opening 121, the first threaded fastener 103 being coupled to the front drive controller body through a first connection 1021. During assembly, a worker can enable the first threaded fastener 103 to penetrate through the first connecting part 1021 to be connected with the front-drive controller body through the through hole 121, and the front-drive controller is convenient to mount and simple to operate. It can be understood that the first threaded fastener 103 has the advantages of simple structure and easy assembly, and the first connection portion 1021 can be tightly connected with the front-drive controller body through the first threaded fastener 103, so as to ensure the reliability of the electrical connection between the first connection portion 1021 and the front-drive controller body. In addition, the cost can be reduced while the connection strength of the first connection part 1021 and the front-wheel controller body is ensured. Alternatively, the first threaded fastener 103 may be a screw, a bolt, or a stud.

In some embodiments of the present invention, referring to FIG. 3, the forward drive powertrain 100 further comprises: the first sealing member 104 is provided with a first screw-connection portion 122 at the through hole 121 of the housing 10, the first sealing member 104 is provided with a second screw-connection portion 1041, and the first screw-connection portion 122 and the second screw-connection portion 1041 are in threaded connection to install the first sealing member 104 into the through hole 121.

For example, the first sealing member 104 may be a sealing plug, and during assembly, the first threaded fastener 103 may be first connected to the front-wheel-drive controller body through the first connection portion 1021, and then the first sealing member 104 is threaded with the housing 10 to seal the through hole 121, it may be understood that the threaded connection has the advantages of simple structure and easy assembly, and by screwing the first sealing member 104 with the housing 10, the reliable connection between the first sealing member 104 and the housing 10 may be achieved, which is beneficial to ensuring the sealing effect of the first sealing member 104 on the through hole 121. Of course, the present invention is not limited thereto, and the first sealing member 104 and the housing 10 may be detachably connected by clipping, riveting, or the like.

Referring to fig. 4, a rear driving force assembly 200 according to an embodiment of the present invention includes: the rear-drive motor controller 201 comprises a rear-drive controller body and the shell 10, the rear-drive controller body is located in the shell 10, the direct-current connector 202 is located on one side of the rear-drive motor controller 201 in the circumferential direction, the direct-current connector 202 is provided with a second connecting portion 2021, and the second connecting portion 2021 extends into the through hole 121 of the shell 10 to be electrically connected with the rear-drive controller body. For example, the second connection portion 2021 may be a dc copper bar, and the second connection portion 2021 extends into the through hole to be connected to a dc input copper bar of the front drive controller body.

It can be understood that the rear driving force assembly 200 according to the embodiment of the present invention can achieve the electrical connection between the rear drive controller body and the dc connector 202, and at the same time, the housing 10 has strong versatility and low mold cost and verification cost, thereby being beneficial to reducing the cost of the rear driving force assembly 200.

In some embodiments of the present invention, referring to fig. 4, a second groove 112 to be processed is further disposed on the top cover 11, the second groove 112 is spaced apart from the first groove 111, a second mounting hole 1121 is disposed at the second groove 112, and the rear driving force assembly 200 further includes: and the second threaded fastener 203, the second threaded fastener 203 is positioned in the second mounting hole 1121, and the second threaded fastener 203 passes through the second connecting part 2021 to be connected with the rear-drive controller body. During assembly, a worker can enable the second threaded fastener 203 to penetrate through the second connecting portion 2021 to be connected with the rear drive controller body through the second mounting hole 1121, and the rear drive controller is convenient to mount and simple to operate.

It can be understood that the second threaded fastener 203 has the advantages of simple structure and easy assembly, and the second threaded fastener 203 can realize the tight connection between the second connection portion 2021 and the body of the rear-drive controller, thereby ensuring the reliability of the electrical connection between the second connection portion 2021 and the body of the rear-drive controller. In addition, the cost can be reduced while the connection strength of the second connection portion 2021 and the rear drive controller body is ensured. Alternatively, the second threaded fastener 203 may be a screw, bolt, or stud.

In some embodiments of the present invention, referring to fig. 4, rear drive power assembly 200 further comprises: the second sealing element 204, the second mounting hole 1121 of the housing 10 is provided with a first threaded structure 1122, the first sealing element 104 is provided with a second threaded structure 2041, and the first threaded structure 1122 and the second threaded structure 2041 are in threaded connection to mount the second sealing element 204 into the second mounting hole 1121.

For example, the second sealing element 204 may be a sealing plug, the through hole 121 is two and is processed into an unthreaded hole, and during assembly, the second threaded fastener 203 may be first connected to the rear-drive controller body through the second connection portion 2021, and then the second sealing element 204 is threaded with the casing 10 to seal the through hole 121, it may be understood that the threaded connection has the advantages of simple structure and easy assembly, and by screwing the second sealing element 204 to the casing 10, the reliable connection between the second sealing element 204 and the casing 10 may be achieved, which is beneficial to ensuring the sealing effect of the second sealing element 204 on the second mounting hole 1121. Of course, the present invention is not limited thereto, and the second sealing member 204 and the housing 10 may be detachably connected by clipping, riveting, etc.

Referring to fig. 3 and 4, a vehicle according to an embodiment of the present invention includes: the front drive power assembly 100 according to the above-described embodiment of the present invention, and/or the rear drive power assembly 200 according to the above-described embodiment of the present invention. In other words, the vehicle may be a front-drive vehicle type, i.e. the vehicle comprises a front-drive powertrain 100 according to the above-described embodiment of the utility model; alternatively, the vehicle may be of a rear drive type, i.e. the vehicle comprises a rear drive force assembly 200 according to the above described embodiment of the utility model; alternatively, the vehicle may be of a four-wheel drive type, i.e. the vehicle comprises a front drive power assembly 100 and a rear drive power assembly 200 according to the above described embodiment of the utility model.

According to the vehicle provided by the embodiment of the utility model, by arranging the front driving power assembly 100 and/or the rear driving power assembly 200, the shell 10 of the motor controller of the front driving power assembly 100 and/or the rear driving power assembly 200 has strong universality and low mold cost and verification cost, so that the overall cost of the vehicle is favorably reduced.

Other configurations and operations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A housing (10) for a motor controller, the housing (10) comprising:

the top cover (11), the top wall of the top cover (11) is provided with a first groove (111) to be processed;

the top of the lower shell (12) is open, the top cover (11) is connected with the lower shell (12) to cover the open end of the lower shell (12), and a through hole (121) is formed in the side wall of the lower shell (12).

2. The housing (10) according to claim 1, wherein the top cover (11) is further provided with a second groove (112) to be machined, the second groove (112) being spaced apart from the first groove (111).

3. The housing (10) according to claim 2, wherein the top cover (11), the first recess (111) and the second recess (112) are an integrally formed piece.

4. A front drive powertrain (100), comprising:

a precursor motor controller (101), the precursor motor controller (101) comprising a precursor controller body and a housing (10) according to any of claims 1-3, the precursor controller body being located within the housing (10), the first recess (111) being provided with a first mounting hole (1111);

the power distribution unit (102), the power distribution unit (102) is arranged above the front-drive motor controller (101), the power distribution unit (102) is provided with a first connecting part (1021), and the first connecting part (1021) extends into the first mounting hole (1111) to be electrically connected with the front-drive controller body.

5. The precursor power assembly (100) of claim 4, further comprising:

a first threaded fastener (103), the first threaded fastener (103) being located within the through-opening (121), the first threaded fastener (103) being connected to the front-drive controller body through the first connection (1021).

6. The precursor power assembly (100) of claim 4, further comprising:

the sealing structure comprises a first sealing element (104), wherein a first screw-connection part (122) is arranged at a through hole (121) of the shell (10), a second screw-connection part (1041) is arranged on the first sealing element (104), and the first screw-connection part (122) and the second screw-connection part (1041) are in threaded connection so as to install the first sealing element (104) into the through hole (121).

7. A rear drive force assembly (200), comprising:

a rear drive motor controller (201), the rear drive motor controller (201) comprising a housing (10) according to any one of claims 1-3 and a rear drive controller body, the rear drive controller body being located within the housing (10);

the direct current connector (202) is located on one side of the rear-drive motor controller (201) in the circumferential direction, the direct current connector (202) is provided with a second connecting portion (2021), and the second connecting portion (2021) extends into the through opening (121) of the shell (10) and is electrically connected with the rear-drive controller body.

8. The rear driving force assembly (200) according to claim 7, wherein a second groove (112) to be processed is further formed in the top cover (11), the second groove (112) is spaced apart from the first groove (111), a second mounting hole (1121) is formed at the second groove (112), and the rear driving force assembly (200) further comprises: a second threaded fastener (203), the second threaded fastener (203) being located in the second mounting hole (1121), the second threaded fastener (203) passing through the second connection portion (2021) to connect with the rear drive controller body.

9. The rear drive force assembly (200) of claim 8, further comprising:

the sealing device comprises a second sealing piece (204), a first threaded structure (1122) is arranged at a second mounting hole (1121) of the shell (10), a second threaded structure (2041) is arranged on the first sealing piece (104), and the first threaded structure (1122) and the second threaded structure (2041) are in threaded connection so that the second sealing piece (204) can be mounted in the second mounting hole (1121).

10. A vehicle, comprising: the front drive power assembly (100) according to any one of claims 4-6, and/or the rear drive power assembly (200) according to any one of claims 7-9.

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