CN220210104U - Power assembly and vehicle - Google Patents

Abstract

The utility model discloses a power assembly and a vehicle. The shell is provided with an end part and a first side part which are adjacently arranged; the motor end cover is arranged at the end part of the shell, a first sealing gap is formed between the motor end cover and the shell, a first sealing layer is arranged in the first sealing gap, the motor end cover is provided with a second side part, and the first side part is arranged in parallel with the second side part and forms a connecting side with the second side part; the electric cabinet body covers the connecting side, a second sealing gap is formed between the electric cabinet body and the connecting side, the second sealing gap is communicated with the first sealing gap, and a second sealing layer is arranged in the second sealing gap. The technical scheme of the utility model can reduce the size of the whole machine and the weight of the whole machine.

Description

Power assembly and vehicle

Technical Field

The utility model relates to the technical field of new energy automobiles, in particular to a power assembly and a vehicle.

Background

The power assembly generally comprises a motor end cover, a shell, an electric cabinet body and other structures.

In the related art, the motor end cover is usually connected with the casing and the electric cabinet body in a sealing manner in pairs respectively, specifically, the motor end cover is firstly connected with the end part of the casing in a sealing manner, then the electric cabinet body is connected with one side of the casing in a sealing manner, and when the size of the casing is smaller than that of the electric cabinet body, in order to ensure the sealing connection area between the casing and the electric cabinet body, the size of the casing needs to be increased, so that the size of the casing is matched with the size of the electric cabinet body, and the size and weight of the whole machine can be increased.

Disclosure of Invention

The utility model mainly aims to provide a power assembly and a vehicle, and aims to reduce the size and the weight of the whole machine.

In order to achieve the above object, the present utility model provides a powertrain, comprising:

a housing having an end portion and a first side portion disposed adjacent thereto;

the motor end cover is arranged at the end part of the shell, a first sealing gap is formed between the motor end cover and the shell, a first sealing layer is arranged in the first sealing gap, the motor end cover is provided with a second side part, and the first side part is arranged in parallel with the second side part and forms a connecting side with the second side part;

the electric control box body covers the connecting side, a second sealing gap is formed between the electric control box body and the connecting side, the second sealing gap is communicated with the first sealing gap, and a second sealing layer is arranged in the second sealing gap.

In an embodiment of the utility model, an elastic member is disposed on a side of the electric control box body, which is close to the casing, and the elastic member abuts against the casing, so that the conductive member of the electric control box body is electrically connected to the conductive member of the casing through the elastic member.

In an embodiment of the utility model, a mounting groove is formed in one side, close to the shell, of the electric control box body, and the elastic piece is at least partially mounted in the mounting groove.

In an embodiment of the present utility model, the electric control box body is connected to the casing by a screw, and two ends of the screw are respectively located at two sides of the second sealing gap, so that the conductive member of the electric control box body is electrically connected to the conductive member of the casing by the screw; the screws are provided with at least two, and the elastic piece is positioned between two adjacent screws.

In an embodiment of the present utility model, a glue overflow groove is formed on a side of the first sealing gap, which is close to the second sealing gap.

In an embodiment of the utility model, a first chamfer is arranged at the end part of the casing, the first chamfer is arranged near the first side part, a second chamfer is arranged at one side of the motor end cover near the casing, the second chamfer is arranged near the second side part, and the first chamfer and the second chamfer form the glue overflow groove.

In an embodiment of the utility model, a joint is formed at a joint between the casing and the motor end cover and between the casing and the electric cabinet body, and a surrounding structure is arranged at the joint and used for blocking glue in the first sealing gap and/or the second sealing gap from overflowing.

In an embodiment of the utility model, the enclosure structure includes a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are buckled with each other, the first limiting portion is connected to the electric cabinet, and the second limiting portion is connected to the casing and/or the motor end cover.

In one embodiment of the utility model, the motor end cap is attached to the housing by screws.

The utility model also provides a vehicle comprising the power assembly.

In the power assembly provided by the utility model, the three parts of the shell, the motor end cover and the electric cabinet body can be sealed simultaneously by arranging the first sealing layer in the first sealing gap between the shell and the motor end cover and arranging the second sealing layer in the second sealing gap between the electric cabinet body and the connecting side, so that the first sealing layer and the second sealing layer form a T-shaped sealing structure at the sealing interface of the three parts.

Then, when the sealing connection of the shell, the motor end cover and the electric cabinet is carried out, as long as the overall size of the shell and the motor end cover is larger than or equal to the size of the electric cabinet, namely, as long as the size of the connection side is larger than or equal to the size of the electric cabinet, the sealing connection area between the electric cabinet and the shell and the motor end cover can be ensured, so that the size of the shell does not need to be increased to adapt to the size of the electric cabinet, the size of the whole machine can be effectively reduced, and the weight of the whole machine can be effectively reduced.

In addition, because the electric cabinet body and the motor end cover are not isolated by the machine shell, the UVW three-phase output power loop in the electric cabinet body can be directly connected with the motor through the motor end cover, so that the path of the UVW three-phase output power loop can be effectively shortened, and the electromagnetic compatibility (EMC) of the whole machine is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a powertrain of the present utility model;

FIG. 2 is a schematic diagram of one embodiment of a powertrain of the present utility model;

FIG. 3 is a schematic view of a portion of a powertrain according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a portion of a powertrain according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of an embodiment of a powertrain of the present utility model;

FIG. 6 is a partial enlarged view of an electric cabinet in an embodiment of the powertrain of the present utility model;

FIG. 7 is a simplified cross-sectional view of an embodiment of a powertrain of the present utility model;

FIG. 8 is an enlarged view of a portion of an embodiment of a powertrain of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a power assembly 100 and a vehicle, which aim to reduce the size and weight of the whole machine.

The specific structure of the powertrain 100 and the vehicle of the present utility model will be described below:

referring to fig. 1 to 3 in combination, in an embodiment of the power assembly 100 of the present utility model, the power assembly 100 includes a housing 10, a motor end cover 20, and an electric cabinet 30; the casing 10 has an end 11 and a first side 12 arranged adjacently; the motor end cover 20 is arranged at the end part 11 of the machine shell 10, a first sealing gap 10a is formed between the motor end cover 20 and the machine shell 10, a first sealing layer 10c is arranged in the first sealing gap 10a, the motor end cover 20 is provided with a second side part 21, and the first side part 12 is arranged flush with the second side part 21 and forms a connecting side 20a with the second side part 21; the electric control box 30 covers the connection side 20a, a second sealing gap 10b is formed between the electric control box and the connection side 20a, the second sealing gap 10b is communicated with the first sealing gap 10a, and a second sealing layer 10d is arranged in the second sealing gap 10 b.

It can be appreciated that in the power assembly 100 according to the present utility model, by providing the first sealing layer 10c in the first sealing gap 10a between the casing 10 and the motor end cover 20 and providing the second sealing layer 10d in the second sealing gap 10b between the electric control box 30 and the connection side 20a, three components of the casing 10, the motor end cover 20 and the electric control box 30 can be sealed at the same time, so that the first sealing layer 10c and the second sealing layer 10d form a sealing structure similar to a T shape at the sealing interface of the three components.

Then, when the sealing connection of the casing 10, the motor end cover 20 and the electric cabinet body 30 is performed, as long as the overall dimensions of the casing 10 and the motor end cover 20 are greater than or equal to the dimensions of the electric cabinet body 30, that is, as long as the dimensions of the connection side 20a are greater than or equal to the dimensions of the electric cabinet body 30, the sealing connection area between the electric cabinet body 30 and the casing 10 and the motor end cover 20 can be ensured, so that the dimensions of the casing 10 do not need to be increased to adapt to the dimensions of the electric cabinet body 30, thereby effectively reducing the volume of the whole machine and the weight of the whole machine.

In addition, since the electric cabinet 30 and the motor end cover 20 are not isolated by the casing 10, the UVW three-phase output power loop inside the electric cabinet 30 can be directly connected with the motor through the motor end cover 20, so that the path of the UVW three-phase output power loop can be effectively shortened, and the electromagnetic compatibility (EMC) of the whole machine is ensured.

It should be noted that, the electric control box 30 may partially cover the connection side 20a, that is, the electric control box 30 partially covers the casing 10 and the motor end cover 20; alternatively, the electric cabinet 30 may be entirely covered on the connection side 20a, that is, the electric cabinet 30 is entirely covered on the casing 10 and the motor end cover 20.

In this embodiment, referring to fig. 3 in combination, the UVW three-phase output power circuit includes an electric control side UVW three-phase output power circuit 34 and a motor side UVW three-phase output power circuit 24, where the electric control side UVW three-phase output power circuit 34 can be directly connected with the motor side UVW three-phase output power circuit 24, so that the path of the UVW three-phase output power circuit can be effectively shortened, and EMC performance of the whole machine is ensured.

In some embodiments, the materials of the first sealing layer 10c and the second sealing layer 10d may be silicone planar sealant. Of course, in other embodiments, the materials of the first sealing layer 10c and the second sealing layer 10d may be other sealants, which are not limited herein.

In some embodiments, the motor end cover 20 may be connected to the casing 10 by a screw connection manner, so as to ensure the connection strength between the motor end cover 20 and the casing 10;

likewise, the electric control box 30 may be connected to the casing 10 and the motor end cover 20 by a screw connection method, so as to ensure the connection strength between the electric control box 30 and the casing 10, and ensure the connection strength between the electric control box 30 and the motor end cover 20. Because the conductive parts inside the electric control box 30 need to conduct electricity with the conductive parts inside the casing 10, the screws can also play a role in connecting the conductive parts inside the electric control box 30 and the conductive parts inside the casing 10, and the number of the screws needs to be multiple, so as to ensure EMC performance of the whole machine.

Further, referring to fig. 2 and 7 in combination, in an embodiment of the powertrain 100 of the present utility model, the first sealing layer 10c is connected to the second sealing layer 10d.

In this way, in the process of sealing connection, by dispensing in the first sealing gap 10a between the casing 10 and the motor end cover 20, after the sealing glue in the first sealing gap 10a is solidified, the first sealing layer 10c can be formed in the first sealing gap 10a, then dispensing in the second sealing gap 10b between the electric control box 30 and the connection side 20a, after the sealing glue in the second sealing gap 10b is solidified, the second sealing layer 10d can be formed in the second sealing gap 10b, and the second sealing layer 10d is connected with the first sealing layer 10c in the solidification process, so that the sealing effect of the first sealing layer 10c and the second sealing layer 10d can be improved.

Further, referring to fig. 4 to 6 in combination, in an embodiment of the power assembly 100 of the present utility model, an elastic member 31 is disposed on a side of the electric control box 30 close to the housing 10, and the elastic member 31 abuts against the housing 10, so that the conductive member of the electric control box 30 is electrically connected to the conductive member of the housing 10 through the elastic member 31.

So set up, because the manufacturing error and the existence of assembly error of motor end cover 20 and casing 10, in order to avoid leading to the risk that complete machine intensity weakens because of the difference in height that exists between motor end cover 20 and the casing 10, need reduce the screw quantity between electric cabinet body 30 and casing 10, simultaneously in order to guarantee the EMC performance of complete machine, be provided with elastic component 31 through the one side that is close to casing 10 at electric cabinet body 30, with the elastic force effect butt in casing 10 at elastic component 31, so that the inside electric conductor of electric cabinet body 30 can be through elastic component 31 and the electric conductor of electric connection in casing 10 inside, in this way, just so can guarantee the EMC performance of complete machine on the basis of reducing the use quantity of screw, thereby can promote packaging efficiency, and can reduce material cost and cost of labor.

It should be noted that the elastic member 31 may be provided with one or more elastic members, and may be specific according to actual use conditions, and is not particularly limited herein.

In the practical application process, the elastic member 31 may be an elastic structure with conductive effect, such as a spring plate or a spring.

Further, referring to fig. 6 in combination, in an embodiment of the power assembly 100 of the present utility model, a mounting groove 32 is formed on a side of the electric cabinet 30 near the casing 10, and the elastic member 31 is at least partially mounted in the mounting groove 32.

So set up, through at least partly installing the elastic component 31 in the mounting groove 32 of electric cabinet body 30, not only can guarantee the installation stability of elastic component 31, can also guarantee that the inside electrically conductive piece of electric cabinet body 30 carries out effective contact with the inside electrically conductive piece of casing 10 under the elastic deformation of elastic component 31 to guarantee the EMC performance of complete machine.

Of course, in other embodiments, the mounting groove 32 may be disposed on a side of the casing 10 near the electric cabinet 30, so that the elastic member 31 is at least partially mounted in the mounting groove 32, so that the mounting stability of the elastic member 31 can be ensured, and the conductive member in the electric cabinet 30 can be effectively contacted with the conductive member in the casing 10 under the elastic deformation of the elastic member 31, so as to ensure the EMC performance of the whole machine.

In practical applications, the mounting groove 32 may be a rectangular groove, a circular groove, an elliptical groove, or a groove structure, which is not particularly limited herein.

Further, in an embodiment of the present utility model, the electric control box 30 is screwed to the casing 10, and two ends of the screw are respectively located at two sides of the second sealing gap 10b, so that the conductive member of the electric control box 30 is electrically connected to the conductive member of the casing 10 through the screw; the screws are provided in at least two, and the elastic member 31 is located between two adjacent screws.

By arranging the elastic piece 31 between two adjacent screws, the effective abutting connection between the elastic piece 31 and the casing 10 can be ensured under the condition that the two adjacent screws are locked, and the conductive piece of the electric control box 30 can be effectively and electrically connected with the conductive piece of the casing 10 through the elastic piece 31.

Further, referring to fig. 7 in combination, in an embodiment of the power assembly 100 of the present utility model, a glue overflow groove 10e is formed on a side of the first sealing gap 10a close to the second sealing gap 10 b.

In the process of performing sealing connection on the casing 10, the motor end cover 20 and the electric cabinet 30, because of the influence of the assembly sequence and the production tact, glue dispensing is generally performed in a first sealing gap 10a between the motor end cover 20 and the casing 10, and then glue dispensing is performed in a second sealing gap 10b between a connecting side 20a of the two and the electric cabinet 30, so that before glue dispensing is performed in the second sealing gap 10b, the sealant in the first sealing gap 10a may be already fixed into a first sealing layer 10c, in order to avoid the influence of a time interval of two glue dispensing and the possibility of glue spilling, a glue spilling groove 10e is formed on one side, close to the second sealing gap 10b, of the first sealing gap 10a, and then, when glue dispensing is performed in the first sealing gap 10a, the glue spilling groove 10e can provide a space for the sealant to spill outwards so that the sealant can be stored in the glue spilling groove 10e, and thus the risk of the sealant to spill outwards can be reduced, so as to occupy the space of the second sealant overflowing after curing, and even the second sealing gap 10b is normally performed.

In the practical application process, the glue overflow groove 10e may be formed on the casing 10, or may be formed on the motor end cover 20, or may be formed on the casing 10 and the motor end cover 20.

Further, referring to fig. 7 in combination, in an embodiment of the power assembly 100 of the present utility model, the end 11 of the housing 10 is provided with a first chamfer 10e1, the first chamfer 10e1 is disposed near the first side 12, the motor end cover 20 is provided with a second chamfer 10e2 near one side of the housing 10, the second chamfer 10e2 is disposed near the second side 21, and the first chamfer 10e1 and the second chamfer 10e2 form a glue overflow groove 10e.

In this way, in the preparation and molding, the first chamfer 10e1 may be formed at the end 11 of the casing 10 near the first side 12, and the second chamfer 10e2 may be formed at the side of the motor end cover 20 near the second side 21, so that, in the assembling, by disposing the motor end cover 20 at the end 11 of the casing 10, the first chamfer 10e1 is disposed opposite to the second chamfer 10e2, and the glue overflow groove 10e capable of better storing the overflow glue is formed with the second chamfer 10e 2.

Further, referring to fig. 8 in combination, in an embodiment of the power assembly 100 of the present utility model, a joint is formed at the junction between the casing 10 and the motor end cover 20 and the electric cabinet 30, and a fence structure 20b is provided at the joint, where the fence structure 20b is used for blocking the glue in the first sealing gap 10a and/or the second sealing gap 10b from overflowing.

So set up, before the point gum is carried out in second sealed clearance 10b, can place electric cabinet body 30 earlier on the junction side 20a that first side 12 of casing 10 and motor end cover 20's second lateral part 21 constitute, at this moment, the junction of casing 10 and motor end cover 20 and electric cabinet body 30 will be formed with and enclose and keep off structure 20b, alright be under enclosing and keep off the condition that keeps off structure 20 b's effect effectively reduces the glue spilling, still can play the effect of sheltering from the glue spilling simultaneously for whole more pleasing to the eye.

It should be noted that the enclosure structure 20b may be a structure disposed at any junction where glue overflow may occur.

Further, referring to fig. 8 in combination, in an embodiment of the power assembly 100 of the present utility model, the enclosure structure 20b includes a first limiting portion 20b1 and a second limiting portion 20b2, the first limiting portion 20b1 and the second limiting portion 20b2 are buckled with each other, the first limiting portion 20b1 is connected to the electric control box 30, and the second limiting portion 20b2 is connected to the casing 10 and/or the motor end cover 20.

So set up, when placing electric cabinet 30 in the junction side 20a that first side 12 of casing 10 and motor end cover 20's second lateral part 21 constitute, first spacing portion 20b1 and second spacing portion 20b2 can lock each other, can form and enclose fender structure 20b, alright be enclosing under the effect that keeps off structure 20b effectively reduce the condition of glue overflow, can also play simultaneously and shelter from the effect of glue overflow for whole more pleasing to the eye.

In some embodiments, the casing 10 further has a third side portion 13, the third side portion 13 intersecting the end portion 11 and the first side portion 12 to form a first diagonal angle provided with a first folded edge 14 folded toward the electric cabinet 30; the motor end cover 20 further has a fourth side portion 22, the fourth side portion 22 intersects with the side close to the casing 10 and the second side portion 21 to form a second diagonal angle, the second diagonal angle is provided with a second folded edge 23 folded toward the electric cabinet 30, and the first folded edge 14 and the second folded edge 23 may form a second limiting portion 20b2; the electric control box 30 is provided with a first limiting part 20b1 at one side close to the first sealing gap 10a, and the first limiting part 20b1 is buckled with a second limiting part 20b2, so that a surrounding structure 20b can be formed.

The utility model also provides a vehicle, which comprises the power assembly 100, wherein the specific structure of the power assembly 100 refers to the above embodiment, and since the power assembly adopts all the technical schemes of all the above embodiments, at least has all the beneficial effects brought by the technical schemes of the above embodiments, and the description is omitted herein.

In this embodiment, the vehicle further includes a motor, a transmission, and an electric control structure disposed in the electric control box 30, which are disposed in the casing 10.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A powertrain, comprising:

a housing having an end portion and a first side portion disposed adjacent thereto;

the motor end cover is arranged at the end part of the shell, a first sealing gap is formed between the motor end cover and the shell, a first sealing layer is arranged in the first sealing gap, the motor end cover is provided with a second side part, and the first side part and the second side part are arranged in a flush manner to form a connecting side;

the electric control box body covers the connecting side, a second sealing gap is formed between the electric control box body and the connecting side, the second sealing gap is communicated with the first sealing gap, and a second sealing layer is arranged in the second sealing gap.

2. The power assembly of claim 1, wherein an elastic member is disposed on a side of the electric control box body, which is close to the housing, and the elastic member abuts against the housing, so that the conductive member of the electric control box body is electrically connected to the conductive member of the housing through the elastic member.

3. The power assembly of claim 2, wherein a mounting groove is formed in a side, close to the shell, of the electric control box body, and the elastic piece is at least partially mounted in the mounting groove.

4. The power assembly of claim 2, wherein the electric control box body is connected to the casing by a screw, and two ends of the screw are respectively positioned at two sides of the second sealing gap, so that the conductive part of the electric control box body is electrically connected to the conductive part of the casing by the screw; the screws are provided with at least two, and the elastic piece is positioned between two adjacent screws.

5. The locomotion assembly of claim 1, wherein a glue overflow groove is formed on a side of the first sealing gap close to the second sealing gap.

6. The power assembly of claim 5, wherein the end of the housing is provided with a first chamfer, the first chamfer is disposed adjacent to the first side, the motor end cap is provided with a second chamfer adjacent to the second side, and the first chamfer and the second chamfer form the glue overflow groove.

7. The powertrain of claim 1, wherein a junction between the housing and the motor end cap and the electric cabinet is formed, the junction being provided with a barrier structure for blocking glue in the first seal gap and/or the second seal gap from escaping.

8. The power assembly of claim 7, wherein the enclosure structure comprises a first limit portion and a second limit portion, the first limit portion and the second limit portion are mutually buckled, the first limit portion is connected to the electric cabinet body, and the second limit portion is connected to the casing and/or the motor end cover.

9. The powertrain of any one of claims 1 to 8, wherein the motor end cap is attached to the housing by screws.

10. A vehicle comprising a powertrain as claimed in any one of claims 1 to 9.