CN217633767U

CN217633767U - Housing assembly of new energy vehicle gearbox and new energy vehicle gearbox

Info

Publication number: CN217633767U
Application number: CN202221791937.1U
Authority: CN
Inventors: 丰万里; 石兆军; 陈伟; 张�成
Original assignee: Nanjing Qingyan Hongda New Energy Power Co ltd
Current assignee: Nanjing Qingyan Haiyi New Energy Power Co.,Ltd. Shanghai Branch
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-10-21
Anticipated expiration: 2032-07-12

Abstract

The application discloses housing subassembly and new energy vehicle gearbox of new energy vehicle gearbox relates to gearbox technical field, and the housing subassembly of new energy vehicle gearbox includes: the shell is of a cavity structure, the top of the shell is provided with an opening and a groove, and the groove is arranged at the local edge of the opening; the ventilation cap is arranged on one side of the groove; the vent hole is arranged on the side wall of the shell and is communicated with the other side of the groove; the elbow is arranged on the vent hole and extends downwards along the vertical direction; the lid covers in the opening, and be equipped with the top groove of recess adaptation, the top groove is equipped with the boss, and the boss covers the ventilative cap, and top groove and recess form the air flue, by ventilative cap to the direction of air vent, the degree of depth crescent of air flue. Above-mentioned housing subassembly and new forms of energy vehicle gearbox can promote the water-proof effects of gearbox.

Description

Housing assembly of new energy vehicle gearbox and new energy vehicle gearbox

Technical Field

The application relates to the technical field of gearboxes, in particular to a housing assembly of a new energy vehicle gearbox and the new energy vehicle gearbox.

Background

As is well known, the temperature difference between the internal temperature and the working temperature of the gearbox is large in the working process, so that a ventilation system needs to be designed to balance the internal pressure and the external pressure of the gearbox, especially for new energy vehicles, and the universal input rotating speed is higher, so that the pressure change caused by the solubility, the gas expansion rate and the like in the gearbox is more easily caused.

However, pressure exchange is carried out between the inside and the outside, and water vapor exchange is carried out along with the pressure exchange, so that special attention needs to be paid when a vehicle runs in a coastal humid area or under working conditions with a large amount of water inflow risks such as wading, spraying and dust falling, once water enters the inside of the gearbox, lubricating oil is mixed into the gearbox, deterioration is caused, and the lubricating effect is reduced; on the other hand, rust occurs in the parts, and the stability of the moving parts or electric components is lowered.

For solving above-mentioned technical problem, in prior art, generally with ventilative cap direct mount on the gearbox casing, nevertheless through the sheet metal component part protection according to similar shade structure around ventilative cap, ventilative cap inboard passes through inside the bleeder vent directly main part casing promptly, and ventilative cap and external direct UNICOM can lead to the gearbox water-proof effects not good like this, influence the use of gearbox.

In view of this, how to improve the waterproof effect of the transmission is a technical problem that needs to be considered by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a housing subassembly and new energy vehicle gearbox of new energy vehicle gearbox can promote the water-proof effects of gearbox.

To achieve the above object, the present application provides a housing assembly of a transmission of a new energy vehicle, including:

the shell is of a cavity structure, the top of the shell is provided with an opening and a groove, and the groove is arranged at the local edge of the opening;

the ventilation cap is arranged on one side of the groove;

the vent hole is arranged on the side wall of the shell and is communicated with the other side of the groove;

the elbow is arranged on the vent hole and extends downwards along the vertical direction;

the lid covers in the opening, and be equipped with the top groove of recess adaptation, the top groove is equipped with the boss, and the boss covers the ventilative cap, and top groove and recess form the air flue, by ventilative cap to the direction of air vent, the degree of depth crescent of air flue.

Wherein, the opening is the rectangle, and ventilative cap and air vent are located the relative both sides of opening respectively.

Wherein, a liquid storage tank is arranged at one side of the opening between the ventilation cap and the ventilation hole.

Wherein, the groove is a horizontal plane, and the top groove is inclined.

Wherein, the lid is equipped with the mounting hole, and the mounting hole next-door neighbour top groove sets up, and the mounting hole compare in the inboard that the top groove is located the lid, the casing be equipped with the mating holes of mounting hole adaptation, wear to establish behind the mounting hole with the mating holes connection by the fastener to make casing and lid connect.

Wherein, casing and lid are integrated into one piece setting.

Wherein, the elbow is elbow bend.

The application also provides a new energy vehicle gearbox, including foretell new energy vehicle gearbox's housing subassembly.

For above-mentioned background art, the housing subassembly of new energy vehicle gearbox that this application embodiment provided, which comprises a housin, ventilative cap, the air vent, elbow and lid, with the recess setting at open-ended local border, ventilative cap locates the one side of recess, the opposite side intercommunication of recess has the air vent that is located the casing lateral wall, air vent and elbow intercommunication, the lid covers in the opening, and the lid is equipped with the overhead tank with the recess adaptation, the overhead tank is equipped with the boss, the boss covers ventilative cap, overhead tank and recess form the air flue, by ventilative cap to the direction of air vent, the degree of depth crescent of air flue. The housing component is arranged in such a way that the ventilation cap is communicated with the interior of the housing, and the air is guided by the air passage, so that the air inside and outside the housing is communicated; the degree of depth of air flue adopts the mode that changes gradually, can avoid the backward flow of liquid, and the elbow extends downwards along vertical direction simultaneously, and the liquid that has avoided splashing to the at utmost is showing the water-proof effects who promotes the gearbox in getting into the air flue by the elbow, ensures that the gearbox uses reliably.

The new energy vehicle gearbox provided by the embodiment of the application comprises the housing component of the new energy vehicle gearbox, and the beneficial effects can be referred to the above, and the new energy vehicle gearbox is not expanded here.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of a cover assembly of a transmission of a new energy vehicle provided by an embodiment of the present application;

fig. 2 is a schematic view of a cover body of a housing assembly of a transmission case of a new energy vehicle according to an embodiment of the present application;

fig. 3 is a schematic view of an elbow of a housing assembly of a transmission of a new energy vehicle according to an embodiment of the application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to enable those skilled in the art to better understand the scheme of the present application, the present application will be described in further detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 and fig. 2, a housing assembly of a new energy vehicle transmission provided in an embodiment of the present application includes: casing 1, ventilative cap 2, air vent 3, elbow 4 and lid 5, casing 1 are cavity structure, and the top of casing 1 is equipped with opening 11 and recess 12, and the local border of opening 11 is located to recess 12, and recess 12 semi-encircles opening 11 and sets up promptly.

The ventilative cap 2 is located one side of recess 12, and with the prior art unanimous, the bottom of ventilative cap 2 communicates the inside of casing 1, realizes the effect that gas switches on.

The lateral wall of casing 1 is located to air vent 3, the opposite side intercommunication of air vent 3 and recess 12, can think that, ventilative cap 2 and air vent 3 are located the different sides of recess 12 respectively, through setting up ventilative cap 2 and air vent 3 respectively in the head and the tail both sides of recess 12, and the inside gas of casing 1 is discharged by air vent 3 after 2 entering recess 12 from ventilative cap, like this can furthest avoid gas to persist in recess 12.

Air vent 3 is located to elbow 4, and elbow 4's end along vertical direction downwardly extending, and elbow 4 can specifically be elbow bend, and the elbow bend that adopts the standard component can be easy to assemble and maintain, reduces use cost. Because the end of the elbow 4 extends downwards along the vertical direction, the end of the elbow 4 is close to the lower surface of the shell 1, and the gas flows to the elbow 4 from the groove 12 and is discharged downwards, so that the liquid can be prevented from splashing to the inside of the elbow 4, and the liquid is prevented from flowing back to the groove 12.

Referring to fig. 3, the vent hole 3 may be a threaded hole formed in the side wall of the housing 1, the threaded hole is communicated with the groove 12, the groove 12 may further be provided with a vertical hole, the vertical hole is communicated with the threaded hole, i.e., the communication between the groove 12 and the threaded hole is realized, the threaded hole is provided with an elbow 4, the elbow 4 is communicated with the external atmosphere, and the outlet of the elbow 4 is directed downward and used for blocking direct high-pressure water flow. Of course, the communication mode of the groove 12 and the vent hole 3 can be other, and the text does not expand.

Lid 5 covers in opening 11, and lid 5 is equipped with the overhead tank 51 with recess 12 adaptation, and overhead tank 51 is equipped with boss 52, and ventilative cap 2 is covered to boss 52, and overhead tank 51 and recess 12 form the air flue, and by ventilative cap 2 to the direction of air vent 3, the degree of depth of air flue increases gradually.

The narrow bending of above-mentioned air flue has reduced the velocity of flow and the temperature to 2 directions of ventilative cap of steam around the 11 nearly semicircles of opening for steam just can condense into the liquid drop sooner at the in-process through the air flue, because of again by ventilative cap 2 to the direction of air vent 3, the degree of depth crescent of air flue has increased the further resistance that flows to the inside of external steam.

Ventilative cap 2 is covered by boss 52, therefore the inside gas of casing 1 is in the air flue via ventilative cap 2 inflow air flues, and gas can directly not arrange outside casing 1 through ventilative cap 2, because the both sides of air flue adopt different degree of depth, can further avoid steam to flow in along the air flue towards the direction of ventilative cap 2, has greatly alleviated the inside risk of intaking of casing 1.

In some embodiments, with continued reference to fig. 1 and 2, the opening 11 of the housing 1 is rectangular, and the ventilation cap 2 and the ventilation hole 3 are respectively located at two opposite sides of the opening 11, so that the length of the air passage is set longer, and there is sufficient flowing space between the ventilation cap 2 and the ventilation hole 3, thereby further preventing water vapor from entering the housing 1 through the air passage from the ventilation hole 3.

In some embodiments, the side of the opening 11 between the vent cap 2 and the vent hole 3 may be further provided with a liquid storage tank 13, the liquid storage tank 13 is used for storing condensed and liquefied water vapor, and water vapor and liquid drops which cannot be discharged in time after cooling and condensation can be temporarily stored, so as to avoid damage to the shifting moving part inside the housing 1, and when the gearbox is operated again and heated, because the liquid storage tank 13 is closer to the inside of the housing 1, the accommodated water vapor is more easily evaporated and diffused to the outside.

In the housing assembly of the present invention, it is preferable to arrange the groove 12 in a horizontal plane and the top groove 51 in an inclined plane, so as to obtain the air passages with different depths. Engineering practice shows that the groove 12 on the housing 1 is not easy to be processed into an inclined shape due to the large volume of the housing 1, but the cover body 5 with a small volume size is easier to process the inclined top groove 51, and the top groove 51, the groove 12 and the liquid storage tank 13 can be integrally formed by casting. Of course, with different upgrading improvements of the processing technology, the groove 12 on the shell 1 can also be arranged to be inclined, and the text does not expand.

In some embodiments, the cover 5 is provided with a mounting through hole 53, the mounting through hole 53 is disposed adjacent to the top groove 51, the mounting through hole 53 is located on the inner side of the cover 5 compared to the top groove 51, the housing 1 is provided with a matching hole 14 matching with the mounting through hole 53, and a fastener is inserted into the mounting through hole 53 and then connected with the matching hole 14 to connect the housing 1 and the cover 5.

The fastening member may be a bolt, and after the casing 1 and the cover 5 are fastened by the bolt, the groove 12 and the top groove 51 may form a section of closed long and narrow air passage, one side of the air passage is connected to the ventilation cap 2, and the other side of the air passage is communicated with the atmosphere through the elbow 4.

The housing 1 and the cover 5 may also be integrally formed, for example, by casting, so as to improve the structural reliability.

The application provides a new energy vehicle gearbox, including the housing subassembly of new energy vehicle gearbox described in the above-mentioned embodiment, other parts of new energy vehicle gearbox can refer to the prior art, and this document does not expand again.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The housing component of the new energy vehicle gearbox and the new energy vehicle gearbox provided by the application are described in detail above. The principles and embodiments of the present application are described herein using specific examples, which are only used to help understand the method and its core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A housing component of a new energy vehicle gearbox, comprising:

the shell (1) is of a cavity structure, the top of the shell is provided with an opening (11) and a groove (12), and the groove (12) is formed in the local edge of the opening (11);

the breathable cap (2) is arranged on one side of the groove (12);

the vent hole (3) is arranged on the side wall of the shell (1) and is communicated with the other side of the groove (12);

the elbow (4) is arranged on the vent hole (3) and extends downwards along the vertical direction;

lid (5), cover in opening (11), and be equipped with top groove (51) of recess (12) adaptation, top groove (51) are equipped with boss (52), boss (52) cover ventilative cap (2), top groove (51) with recess (12) form the air flue by ventilative cap (2) to in the direction of air vent (3), the degree of depth of air flue increases gradually.

2. The cover assembly of the new energy vehicle transmission case according to claim 1, wherein the opening (11) is rectangular, and the ventilation cap (2) and the ventilation hole (3) are respectively located on opposite sides of the opening (11).

3. The cover assembly of the new energy vehicle transmission according to claim 2, characterized in that a liquid reservoir (13) is provided on the side of the opening (11) between the ventilation cap (2) and the ventilation hole (3).

4. The cover assembly of a new energy vehicle transmission according to claim 1, characterized in that the groove (12) is horizontal and the top groove (51) is inclined.

5. The housing assembly of the new energy vehicle gearbox is characterized in that the cover body (5) is provided with a mounting through hole (53), the mounting through hole (53) is arranged next to the top groove (51), the mounting through hole (53) is located on the inner side of the cover body (5) compared with the top groove (51), the shell body (1) is provided with a matching hole (14) matched with the mounting through hole (53), and a fastener is connected with the matching hole (14) after penetrating through the mounting through hole (53) so as to connect the shell body (1) and the cover body (5).

6. The housing assembly of the new energy vehicle transmission according to claim 1, characterized in that the housing (1) and the cover (5) are integrally formed.

7. The cover assembly of a new energy vehicle gearbox according to claim 1, characterized in that the bend (4) is a right angle bend.

8. A new energy vehicle transmission characterized by comprising a cover assembly of the new energy vehicle transmission according to any one of claims 1 to 7.