A kind of outlet structure of wheel hub electric motor of electric vehicle
Technical field
The utility model belongs to hub motor technical field, is related to a kind of outlet structure of wheel hub electric motor of electric vehicle.
Background technique
Wheel hub electric motor of electric vehicle is the power output part of electric vehicle, and existing wheel hub electric motor of electric vehicle outlet structure majority is adopted
It being drilled on motor shaft, lead-out wire is drawn from motor axis hole, and this outlet structure not only reduces the intensity of motor shaft, and
And limited by axis hole size, it draws cross-sectional area and is greatly limited.
For the problem present on, people make miscellaneous improvement, and some has also applied for patent, such as China is specially
[the application number: 201120013161.6 of line outlet device for outgoing line of brushless motor of electromobile disclosed in sharp documents and materials;Granted publication
Number: CN201937429U] comprising motor shaft, bearing, electric machine casing and end cap, electric machine casing have connected wheel hub, motor outside
Installation stator and rotor, motor shaft outer wall are arranged short sleeve in shell, and phase line outlet hole is formed in short sleeve and hall signal goes out
String holes, motor phase line lead-out wire pass through phase line outlet hole, and hall signal lead-out wire passes through hall signal outlet hole.
The brushless motor for automobile of this kind of structure, motor phase line lead-out wire pass through phase line outlet hole, hall signal lead-out wire
Across hall signal outlet hole, but there is gap, hall signal between motor phase line lead-out wire and the inner sidewall of phase line outlet hole
There is gap, this just makes extraneous water, sludge, dust etc. are easy to pass through between lead-out wire and the inner sidewall of hall signal outlet hole
The gap enters inside motor, leads to motor damage.
Summary of the invention
The purpose of this utility model is to propose a kind of electric vehicle hub electricity for the above-mentioned problems in the prior art
The technical issues of outlet structure of machine, solution is how to improve sealing effect, is hardly damaged motor.
The purpose of this utility model can be realized by the following technical scheme: a kind of knot out of wheel hub electric motor of electric vehicle
Structure, including the axle sleeve being set in outside hub motor output shaft, which is characterized in that one end of the axle sleeve has the of recessed setting
There are the slot bottom of one fixing groove, first fixing groove several to run through the location hole of the axle sleeve other end, and the outlet structure is also
Including the sealing-plug made of elastic material, one end of the sealing-plug has the sealing pillar of several protrusion settings, along axis
The axial direction of set, with the passing channel that several are passed through for lead-out wire in the sealing-plug, each passing channel is both passed through
Corresponding sealing pillar, the sealing-plug sealing insertion is connected in the first fixing groove and sealing pillar sealing insertion is connected
In corresponding location hole.
Lead-out wire passes through passing channel, and sealing-plug is made of elastic material, and the inner sidewall and lead-out wire of sealing-plug are close
Sealing label closes, and the inner sidewall palette of the lateral wall of sealing-plug and the first fixing groove, sealing-plug plays the role of sealing;It seals convex
Column sealing insertion is connected in corresponding location hole, and sealing pillar plays the role of sealing, and sealing-plug is dual with sealing pillar
Sealing improves sealing effect, enter extraneous water, sludge, dust etc. will not inside motor, is hardly damaged motor.It is close
What envelope pillar cooperation location hole can be improved sealing-plug while can position to the position of sealing-plug firmly installs degree,
And sealing pillar is embedded into and ensures to be maintained at spacing appropriate between adjacent lead-out wire in corresponding location hole, makes lead-out wire
Connection and reasonable arrangement, while the setting of sealing-plug and sealing pillar be in contact lead-out wire will not with axle sleeve, sealing-plug and sealing are convex
Column plays the role of protection to lead-out wire, is hardly damaged lead-out wire, so that motor be made to be hardly damaged.
In a kind of outlet structure of above-mentioned wheel hub electric motor of electric vehicle, between having between two adjacent sealing pillars
Gap, when sealing pillar sealing insertion is connected in corresponding location hole, the sealing-plug is resisted against the slot bottom of the first fixing groove.
This kind of structure can be improved the degree that firmly installs of sealing-plug, and this kind of structure, sealing-plug can be enable preferably to be resisted against
The slot bottom of first fixing groove improves sealing area, to improve sealing effect, enter extraneous water, sludge, dust etc. will not
To inside motor, it is hardly damaged motor.
In a kind of outlet structure of above-mentioned wheel hub electric motor of electric vehicle, marine glue can be injected by also having on the axle sleeve
Second fixing groove, second fixing groove are located at the other end of axle sleeve, the location hole connection first relative to the first fixing groove
Fixing groove and the second fixing groove, each sealing pillar are partially located in the second fixing groove.Lead-out wire part is located at second
In fixing groove, the setting of the second fixing groove is injected for marine glue, and the sealing that this outlet structure can be improved after marine glue injection is anti-
Water effect, so that motor be made to be hardly damaged;And the injection of marine glue can be such that lead-out wire positions, and make lead-out wire will not be with axle sleeve
It is in contact, lead-out wire is hardly damaged, so that motor be made to be hardly damaged;Each sealing pillar is partially located at the second fixing groove
In, i.e. sealing pillar is directly contacted with marine glue, and the firmness of sealing pillar and sealing-plug installation can be improved in marine glue.
In a kind of outlet structure of above-mentioned wheel hub electric motor of electric vehicle, along the radial direction of axle sleeve, first fixing groove
Cross section is arc-shaped, has the through-hole passed through for hub motor output shaft in the axle sleeve, and first fixing groove is located at outside
Cell wall be arranged along the outer circumferential wall of axle sleeve, the cell wall that first fixing groove is located inside sets along the inner sidewall of through-hole
It sets.Rationally utilize space, connection and reasonable arrangement.
In a kind of outlet structure of above-mentioned wheel hub electric motor of electric vehicle, the outlet structure further includes pressing plate, the pressure
There are several perforative cable-through holes, the cable-through hole is arranged in a one-to-one correspondence with passing channel, the pressing plate and axle sleeve phase on plate
It is connected and sealing-plug can be pressed in the first fixing groove by the pressing plate.The setting of pressing plate makes sealing-plug will not be from the first fixing groove
In fall off, what pressing plate improved sealing-plug firmly installs degree, improves sealing effect, makes extraneous water, sludge, dust etc. will not be into
Enter to inside motor, so that motor be made to be hardly damaged.
There is a pair of of fixation hole in a kind of outlet structure of above-mentioned wheel hub electric motor of electric vehicle, on the axle sleeve, pass through
First fastener passes through pressing plate and being threaded through in fixation hole is fixedly connected with pressing plate with axle sleeve.It is convenient to be connected, easy to assembly.
In a kind of outlet structure of above-mentioned wheel hub electric motor of electric vehicle, the sealing-plug and sealing pillar are by rubber material
Material or silica gel material are made, and the sealing-plug and sealing pillar are an integral structure.Integral structure is easy to process, stability
It is good.
In a kind of outlet structure of above-mentioned wheel hub electric motor of electric vehicle, along the radial direction of axle sleeve, it is equipped with and supplies in the axle sleeve
The inner end of the fastener hole that second fastener passes through, second fastener can be resisted against on hub motor output shaft.This kind of structure,
The problem of preventing hub motor output shaft and axle sleeve from having skidded, reduce the failure rate of hub motor.
In a kind of outlet structure of above-mentioned wheel hub electric motor of electric vehicle, along the axial direction of axle sleeve, it is equipped with and passes through in the axle sleeve
The venthole worn is equipped with gas nozzle or waterproof vent valve on the venthole.The inside of the setting balance hub motor of venthole
With extraneous air pressure, avoid sucking steam when hub motor is cooling;The setting of gas nozzle or waterproof vent valve further avoids taking turns
Hub motor sucks steam when cooling, is hardly damaged hub motor.
Compared with prior art, the outlet structure of wheel hub electric motor of electric vehicle provided by the utility model has the advantage that
1, this outlet structure is convex by the way that the sealing-plug made of elastic material and sealing are arranged between lead-out wire and axle sleeve
Column improves sealing effect, enter extraneous water, sludge, dust etc. will not inside motor, is hardly damaged motor.
2, this outlet structure by between lead-out wire and axle sleeve be arranged by elastic material be made sealing-plug and sealing pillar,
And marine glue is injected in the second fixing groove, the above structure positions the position of lead-out wire and plays protection lead-out wire
Effect, it is ensured that be maintained at spacing appropriate between adjacent lead-out wire, be hardly damaged lead-out wire, to make motor not rapid wear
It is bad.
Detailed description of the invention
Fig. 1 is the explosive view of this wheel hub electric motor of electric vehicle outlet structure.
Fig. 2 is the overall structure diagram of this wheel hub electric motor of electric vehicle outlet structure.
Fig. 3 is the overall structure diagram one of this wheel hub motor wire outlet structure axle sleeve.
Fig. 4 is the overall structure diagram two of this wheel hub motor wire outlet structure axle sleeve.
In figure, 1, hub motor output shaft;2, axle sleeve;21, the first fixing groove;22, location hole;23, the second fixing groove;
24, through-hole;25, fixation hole;26, fastener hole;27, venthole;3, sealing-plug;31, passing channel;4, pillar is sealed;5, pressing plate;
51, cable-through hole;6, the first fastener;7, the second fastener;8, gas nozzle.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 and Figure 2, wheel hub electric motor of electric vehicle includes hub motor output shaft 1, is arranged outside hub motor output shaft 1
There is axle sleeve 2, outlet structure includes sealing-plug 3, sealing pillar 4 and pressing plate 5.
As shown in Figure 3, Figure 4, one end of axle sleeve 2 has the first fixing groove 21 of recessed setting, and the other end of axle sleeve 2 has
Second fixing groove 23 of recessed setting, in the present embodiment, there are five is through to the second fixing groove to the slot bottom tool of the first fixing groove 21
23 location hole 22, in actual production, the quantity of location hole 22 can be three or seven.The connection of location hole 22 first is solid
Determine slot 21 and the second fixing groove 23, the first fixing groove 21 is identical with the shape of the second fixing groove 23, the first fixing groove 21 and second
The two sides of location hole 22 are symmetrically arranged in fixing groove 23.There is the through-hole 24 passed through for hub motor output shaft 1 in axle sleeve 2,
Along the radial direction of axle sleeve 2, the cross section of the first fixing groove 21 and the second fixing groove 23 is arc-shaped, and the first fixing groove 21 and second is solid
Determine slot 23 and be located at the cell wall in outside to be arranged along the outer circumferential wall of axle sleeve 2, the first fixing groove 21 and the second fixing groove 23 are located at
The cell wall of inside is arranged along the inner sidewall of through-hole 24.
Sealing-plug 3 and sealing pillar 4 are made of elastic material, and sealing-plug 3 and sealing pillar 4 are an integral structure, close
Blocking 3 and sealing pillar 4 pass through injection molding one-pass molding.In the present embodiment, sealing-plug 3 and sealing pillar 4 by rubber material,
In actual production, sealing-plug 3 and sealing pillar 4 can be made of silica gel material.The cross section of sealing-plug 3 is arc-shaped, sealing
Plug 3 and the shape and structure of the first fixing groove 21 match, and one end of sealing-plug 3 has the sealing pillar 4 of protrusion setting, along axis
2 axial direction is covered, there is the passing channel 31 passed through for lead-out wire in sealing-plug 3, each passing channel 31 both passes through corresponding close
Pillar 4 is sealed, there is perforative cable-through hole 51, sealing pillar 4, location hole 22, passing channel 31 and cable-through hole 51 are one by one on pressing plate 5
It is correspondingly arranged, i.e., in the present embodiment, the quantity of sealing pillar 4, passing channel 31 and cable-through hole 51 is five, in actual production
In, the quantity of sealing pillar 4, passing channel 31 and cable-through hole 51 can be three or seven.
Between two adjacent sealing pillars 4 have gap, sealing-plug 3 sealing insertion be connected in the first fixing groove 21 and
The sealing sealing insertion of pillar 4 is connected in corresponding location hole 22, and sealing-plug 3 is resisted against the slot bottom of the first fixing groove 21, each
The part of pillar 4 is sealed to be located in the second fixing groove 23.
There is a pair of of fixation hole 25, a pair of of fixation hole 25 is located at the both ends of the first fixing groove 21, by the on axle sleeve 2
One fastener 6 such as bolt or screw passes through pressing plate 5 and being threaded through in fixation hole 25 is fixedly connected with pressing plate 5 with axle sleeve 2, pressing plate 5
It is fixedly connected with axle sleeve 2 and sealing-plug 3 can be pressed in the first fixing groove 21 by pressing plate 5.
It is equipped with the fastener hole 26 passed through for the second fastener 7 such as bolt and screw along the radial direction of axle sleeve 2, in axle sleeve 2, second
The inner end of fastener 7 can be resisted against on hub motor output shaft 1.Along the axial direction of axle sleeve 2, perforative venthole is equipped in axle sleeve 2
27, in the present embodiment, in actual production waterproof vent valve can be housed on venthole 27 equipped with gas nozzle 8 on venthole 27.
When assembling, lead-out wire is passed through into the second fixing groove 23, location hole 22, the first fixing groove 21, passing channel 31 and mistake
Then sealing pillar 4 is embedded into corresponding location hole 22 by string holes 51, sealing-plug 3 is embedded into the first fixing groove 21, sealing
Pillar 4 and sealing-plug 3 are closely connected with axle sleeve 2, are fixedly connected with pressing plate 5 and axle sleeve 2 by the second fastener 7, adjustment
The position of lead-out wire, then towards injection marine glue in the second fixing groove 23.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although hub motor output shaft 1, axle sleeve 2, the first fixing groove 21, location hole 22, second is used more herein
Fixing groove 23, through-hole 24, fixation hole 25, fastener hole 26, venthole 27, sealing-plug 3, passing channel 31, sealing pillar 4, pressing plate
5, the terms such as cable-through hole 51, the first fastener 6, the second fastener 7, gas nozzle 8, but the possibility using other terms is not precluded
Property.The use of these terms is merely for the convenience of describing and explaining the nature of the invention;It is construed as any
The additional limitation of one kind is all contrary to the spirit of the present invention.