CN110445317B

CN110445317B - Hub motor exhaust system

Info

Publication number: CN110445317B
Application number: CN201910713947.XA
Authority: CN
Inventors: 黄佳斯; 尤卫建
Original assignee: Aidesi Automobile Motor Wuxi Co ltd
Current assignee: Aidesi Automobile Motor Wuxi Co ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-11-17
Anticipated expiration: 2039-08-23
Also published as: CN110445317A

Abstract

The invention discloses an exhaust system of a hub motor, which specifically comprises: and (3) exhaust design: forming a normal pressure channel for air flow according to a gap between a stator inside the hub machine and a hub bearing; waterproof design; dustproof design: an air filtering device is arranged at one end of the pipeline; the invention relates to the technical field of electric automobiles. This in-wheel motor exhaust system's design, it is direct to set up a passageway that couples with the atmospheric environment in-wheel motor inner chamber, make the air accessible inflow or the in-wheel motor inner chamber that flows, there is the U-shaped structure of an upside-down mounting at the pipeline end again, can prevent rainwater and in marcing that the splash gets into the motor intracavity, adopt the ordinary pressure structure, can guarantee that in-wheel motor intracavity can not lead to the temperature to rise because of pressure increases, add simultaneously and establish air filtration structure and can effectively prevent that the raise dust from getting into in-wheel motor inner chamber through the pipeline.

Description

Hub motor exhaust system

Technical Field

The invention relates to the technical field of electric automobiles, in particular to an exhaust system of a hub motor.

Background

For traditional vehicles, a clutch, a transmission shaft, a differential and even a transfer case are indispensable, the parts are not only light in weight and enable the structure of the vehicle to be more complex, but also have the problems of regular maintenance and failure rate, but the problem is well solved by the hub motor, besides the simple structure, the vehicle driven by the hub motor can obtain better space utilization rate, and meanwhile, the transmission efficiency is higher than a few.

Because the in-wheel motor operating condition is very abominable, the requirement to sealed is very high, lead to the pressure of in-wheel motor inner chamber to change along with the change of in-wheel motor operating condition, because the reason of difference in temperature round the clock, in-wheel motor probably produces the negative pressure under the low temperature condition of ambient temperature, lead to sealing material to hug closely on the stator, arouse the early wearing and tearing of sealing member, and at operating condition, because the change of motor output, can produce high temperature, arouse in-wheel motor inner chamber to seal the inefficacy, outwards exhaust, only a company has installed an exhaust valve additional on in-wheel motor at present, but because the exhaust valve design is on the rotor, destroy the dynamic balance of rotor easily.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an exhaust system of a hub motor, which solves the problems that the pressure of the inner cavity of the hub motor can be changed along with the change of the working state of the hub motor, the hub motor can generate negative pressure under the low-temperature condition of the environmental temperature due to the temperature difference between day and night, so that a sealing material is tightly held on a stator to cause early abrasion of the sealing element, and the inner cavity of the hub motor can generate high temperature due to the change of the output power of the motor in the working state to cause the sealing failure of the inner cavity of the hub motor and exhaust outwards.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an in-wheel motor exhaust system specifically includes:

and (3) exhaust design: according to the fact that a gap exists between a stator and a hub bearing in a hub motor, sealing filling is needed, a circulation channel is directly formed on the surface of the stator, and then an external pipeline communicated with the circulation channel is formed on the surface of an external rotor to form a normal-pressure channel for air to flow;

waterproof design: designing an inverted U-shaped structure in the external pipeline, and then communicating the inverted U-shaped structure with the circulation channel;

dustproof design: and an air filtering device is arranged at one end close to the inverted U-shaped structure.

Preferably, the circulation passage includes an annular passage and a connection passage, the annular passage is provided on an inner surface of the stator, the connection passage is provided on an outer surface of the stator, and an inside of the connection passage communicates with an inside of the annular passage.

Preferably, the front surface of the external rotor is fixedly connected with an external pipeline, the internal surface of the external rotor, which is positioned on the internal surface of the external channel and is close to one side of the hub rotor, is provided with a U-shaped pipeline, and the internal surface of the U-shaped pipeline is communicated with the connecting channel through an access pipe.

Preferably, one side, close to the external pipeline, of the external rotor is in threaded connection with an air filtering device through a connecting plate, the air filtering device comprises an installation inner shell, an installation outer shell and a filtering core, the inner surfaces of the installation inner shell and the installation outer shell are in sliding connection with the outer surface of the filtering core, and the outer surface of one side of the installation inner shell is in sliding connection with the inner surface of one side of the installation outer shell.

Preferably, the other side of the installation inner shell is communicated with a connecting pipe, the outer surface of the connecting pipe is connected with the inner surface of the external pipeline in a sliding and sealing mode, and the surface of the other side of the installation outer shell is provided with an air inlet.

Preferably, the middle parts of the peripheries of the installation inner shell and the installation outer shell are provided with drain holes.

Preferably, the number of the filter cores is two, and an isolation block is fixedly connected between the opposite sides of the two filter cores.

Preferably, the external pipeline is arranged at a position as far as possible from the periphery of the external rotor.

(III) advantageous effects

The invention provides a design of an exhaust system of an in-wheel motor. The method has the following beneficial effects:

this in-wheel motor exhaust system through the exhaust design: according to the fact that a gap exists between a stator and a hub bearing in a hub motor, sealing filling is needed, a circulation channel is directly formed on the surface of the stator, and then an external pipeline communicated with the circulation channel is formed on the surface of an external rotor to form a normal-pressure channel for air to flow; waterproof design: designing an inverted U-shaped structure in the external pipeline, and then communicating the U-shaped structure with the circulation channel; dustproof design: air filter is installed at the one end that is close to flip-chip U type structure pipeline, directly set up a passageway of being connected with the atmospheric environment in wheel hub motor inner chamber, make the air accessible inflow or the wheel hub motor inner chamber that flows, there is the U-shaped structure of a flip-chip at the pipeline end again, can prevent rainwater and in marcing splash entering motor intracavity, adopt the ordinary pressure structure, can guarantee that the wheel hub motor intracavity can not lead to the temperature to rise because of pressure increases, add simultaneously and establish air filter structure and can effectively prevent that the raise dust from passing through the pipeline and getting into the wheel hub motor inner chamber.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of an external rotor according to the present invention;

FIG. 3 is a front view of the outboard rotor structure of the present invention;

FIG. 4 is a schematic view of the internal structure of the air filter device of the present invention;

fig. 5 is a cross-sectional view of a stator structure of the present invention.

In the figure, 1-a circulation channel, 2-a ring channel, 3-a connecting channel, 4-a stator, 5-an external rotor, 6-an external pipeline, 7-a spacer block, 8-a U-shaped pipeline, 9-an air filtering device, 10-an installation inner shell, 11-an installation outer shell, 12-a filter core, 13-a connecting pipe, 14-an air inlet and 15-a drain hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: an in-wheel motor exhaust system specifically includes:

and (3) exhaust design: according to the fact that a gap exists between a stator 4 and a hub bearing in a hub motor, sealing filling is needed, a circulation channel 1 is directly formed on the surface of the stator 4, and then an external pipeline 6 communicated with the circulation channel 1 is formed on the surface of an external rotor 5, so that a normal-pressure channel for air to flow is formed; the length of the normal pressure channel can be correspondingly adjusted according to different use conditions, and the waterproof design is as follows: designing an inverted U-shaped structure in the external pipeline 6, and then communicating the inverted U-shaped structure with the circulation channel 1; dustproof design: air filter 9 is installed to the one end of U type structure near the flip-chip, directly set up the passageway of one and atmospheric environment hookup in wheel hub motor inner chamber, make the accessible inflow of air or the wheel hub motor inner chamber of flowing out, there is the U-shaped structure of a flip-chip at the pipeline end again, can prevent rainwater and in marcing that the splash gets into the motor intracavity, adopt the ordinary pressure structure, can guarantee that the wheel hub motor intracavity can not lead to the temperature to rise because of pressure increases, add simultaneously and establish air filter structure and can effectively prevent that the raise dust from getting into the wheel hub motor inner chamber through the pipeline.

The circulation channel 1 comprises an annular channel 2 and a connecting channel 3, the annular channel 2 is arranged on the inner surface of a stator 4, the connecting channel 3 is arranged on the outer surface of the stator 4, the inside of the connecting channel 3 is communicated with the inside of the annular channel 2, the front surface of an external rotor 5 is fixedly connected with an external pipeline 6, the external pipeline 6 is arranged at a position which is as far as possible away from the periphery of the external rotor 5, the splashing amount of water can be effectively reduced, the external rotor 5 is arranged on the inner surface of an external channel 7, the inner surface of one side, close to a hub rotor, of the internal channel 8 is provided with a U-shaped pipeline 8, the inner surface of the U-shaped pipeline 8 is communicated with the connecting channel 3 through an access pipe, one side, close to the external pipeline 6, of the external rotor 5 is in threaded connection with an air filtering device 9 through a connecting plate, the air filtering device 9 comprises an installation inner shell 10, an, the surface of installation inner shell 10 one side and the internal surface sliding connection of installation shell 11 one side, the opposite side intercommunication of installation inner shell 10 has connecting pipe 13, the surface of connecting pipe 13 and the internal surface sliding seal of external pipeline 6 are connected, air inlet 14 has been seted up on the surface of installation shell 11 opposite side, wash port 15 has all been seted up at the middle part of installation inner shell 10 and installation shell 11 periphery, the quantity of crossing filter core 12 is provided with two, equal fixedly connected with spacing block 7 between two opposite one sides of crossing filter core 12, the setting of cooperation spacing block 16, it can be at intervals each other to make filter core 12, realize secondary filter, simultaneously can be in the device operation, produce centrifugal force, throw away the water that will spill.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An in-wheel motor exhaust system which characterized in that: the method specifically comprises the following steps:

an exhaust device: according to the technical scheme, a gap is formed between a stator (4) and a hub bearing in a hub motor, sealing and filling are required, a circulation channel (1) is directly formed on the surface of the stator (4), and then an external pipeline (6) communicated with the circulation channel (1) is formed on the surface of an external rotor (5) to form a normal-pressure channel for air flow;

a waterproof device: designing an inverted U-shaped structure in the external pipeline (6), and then communicating the inverted U-shaped structure with the circulation channel (1);

a dustproof device: an air filtering device (9) is arranged at one end close to the inverted U-shaped structure, and a channel connected with the atmospheric environment is directly arranged in the inner cavity of the hub motor;

the circulating channel (1) comprises an annular channel (2) and a connecting channel (3), the annular channel (2) is arranged on the inner surface of the stator (4), the connecting channel (3) is arranged on the outer surface of the stator (4), and the inside of the connecting channel (3) is communicated with the inside of the annular channel (2);

the front fixedly connected with external pipeline (6) of external rotor (5), external rotor (5) are located external pipeline (6) internal surface and are close to the internal surface of wheel hub rotor one side and seted up U type pipeline (8), and the internal surface of U type pipeline (8) is through inserting pipe and interface channel (3) intercommunication.

2. An in-wheel motor exhaust system according to claim 1, wherein: external rotor (5) are close to external pipeline (6) one side and pass through connecting plate and air filter (9) threaded connection, air filter (9) are including installation inner shell (10), installation shell (11) and filter core (12), the internal surface of installation inner shell (10) and installation shell (11) all with the surface sliding connection who filters core (12), and install inner shell (10) and be close to the surface of installation shell (11) one side and install shell (11) and be close to the internal surface sliding connection of installation inner shell (10) one side.

3. An in-wheel motor exhaust system according to claim 2, wherein: the other side of the installation inner shell (10) is communicated with a connecting pipe (13), the outer surface of the connecting pipe (13) is connected with the inner surface of the external pipeline (6) in a sliding and sealing mode, and an air inlet (14) is formed in the surface of the other side of the installation outer shell (11).

4. An in-wheel motor exhaust system according to claim 2, wherein: the middle parts of the peripheries of the mounting inner shell (10) and the mounting outer shell (11) are provided with drain holes (15).

5. An in-wheel motor exhaust system according to claim 2, wherein: the number of the filter cores (12) is two, and the two opposite sides of the filter cores (12) are fixedly connected with an isolation block (7).

6. An in-wheel motor exhaust system according to claim 1, wherein: the external pipeline (6) is arranged at a position which is as far away from the periphery of the external rotor (5) as possible.