CN209402312U - A kind of motor - Google Patents
A kind of motor Download PDFInfo
- Publication number
- CN209402312U CN209402312U CN201822039917.9U CN201822039917U CN209402312U CN 209402312 U CN209402312 U CN 209402312U CN 201822039917 U CN201822039917 U CN 201822039917U CN 209402312 U CN209402312 U CN 209402312U
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- motor
- motor shaft
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- rotor
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Abstract
The utility model belongs to driving element technical field, provide a kind of motor, the motor includes stator, rotor, shell, drive end bearing bracket, rear end cap and motor shaft, drive end bearing bracket is fixed on housing forward end, rear end cap is fixed on housing rear end, the stator and rotor are installed in shell, rotor is sheathed in stator, motor shaft is arranged in rotor, the cooling duct circular along the axial direction of motor shaft is offered inside motor shaft, and cooling duct forms the first inlet and the first liquid outlet in motor the tip of the axis；Liquid in-out device for being passed through coolant liquid to the first inlet and the coolant liquid at the first liquid outlet being discharged is installed on motor the tip of the axis.During the work time, unroll path of the coolant liquid in motor shaft inner cooling channel can sufficiently take away the heat of motor shaft to motor provided by the utility model, and other component can also cool down with the cooling of motor shaft in motor, reach ideal cooling effect.
Description
Technical field
The utility model relates to driving element technical field more particularly to a kind of motors.
Background technique
With the development of the manufacturing technology of motor, the power of motor is being improved always, and the load of motor is also increasing, this is just
To result in motor can generate very high heat because of factors such as friction, load, vortex at work, the serious motor that affects
Therefore motor cooling technology is applied in motor be necessary by working performance and service life.Currently, the skill in the field
Art is broadly divided into gas cooling, liquid cooling and heat-conducting medium according to cooling medium and radiates three kinds.Wherein, in order to meet motor
Work requirements, it is necessary to have a good cooling performance, liquid cooling is solution best at present.
Since the structure of motor is limited, the liquid cooling of motor is most of to be concentrated on the fixing element, such as motor
Shell and stator.And electric machine main shaft, as high-speed rotating component, cooling technology still compares shortcoming now.Even if improving lubrication
Technology and processing method, friction still can generate many heats, and magnetic field generates vortex inside electric machine main shaft, in addition rotor
The heat transmitted, these factors can make electric machine main shaft generate high temperature, and high temperature can destroy the cooperation of main shaft and shafting components, high
It will appear failure under speed rotation and reduce the service life.In the prior art, by the way that a cooling is arranged in electric machine main shaft inside center line
Channel cools down electric machine main shaft.But this technology is since cooling duct is set at electric machine main shaft axis, for motor
Apart from the farther away position of axis in main shaft, it is difficult to get ideal cooling effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of motor, it is intended to solve motor in the prior art and exist
The problem of reaching ideal cooling effect is difficult in the course of work.
The utility model embodiment first aspect provides a kind of motor, including stator, rotor, shell, drive end bearing bracket, rear end cap
And motor shaft, the drive end bearing bracket are fixed on housing forward end, the rear end cap is fixed on housing rear end, the stator and rotor peace
Loaded in the shell, the rotor is sheathed in the stator, and the motor shaft is arranged in the rotor, and feature exists
In offering the cooling duct circular along the axial direction of motor shaft inside the motor shaft, and the cooling duct is in institute
It states motor the tip of the axis and forms the first inlet and the first liquid outlet；It is equipped on the motor the tip of the axis for described
The liquid in-out device that one inlet is passed through coolant liquid and the coolant liquid at first liquid outlet is discharged.
Based on the utility model embodiment in a first aspect, in the first possible implementation, first inlet
Feed liquor check valve is installed, first liquid outlet is equipped with out liquid check valve.
Based on the utility model embodiment in a first aspect, in the second possible implementation, the liquid in-out device
Connector sleeve is provided between the motor shaft end, the connector sleeve is with the relatively described liquid in-out device of the motor shaft
Rotation, is provided with partition among the connector sleeve, the partition isolated inside the connector sleeve one with described first into
The admission chamber of liquid mouth connection and a sap cavity out being connected to first liquid outlet；The liquid in-out device is internally provided with
Two inlets and the second liquid outlet；The motor shaft rotation during, second inlet respectively with the admission chamber
And sap cavity alternate communication out, second liquid outlet respectively with it is described go out sap cavity and admission chamber alternate communication.
Based on the utility model embodiment in a first aspect, the utility model embodiment first aspect the first may
Implementation or the utility model embodiment first aspect second of possible implementation, it is possible at the third
In implementation, radiator fan is socketed on the motor shaft, the radiator fan is arranged in the rear end cap and the stator
Between cavity in, and the air-out direction of the radiator fan is towards the motor shaft end.
The third possible implementation based on the utility model embodiment first aspect, in the 4th kind of possible realization
In mode, the connecting portion between the connector sleeve, the liquid in-out device and the motor shaft end is sealed with sealing element.
The 4th kind of possible implementation based on the utility model embodiment first aspect, in the 5th kind of possible realization
In mode, the sealing element is sealing ring.
Based on the utility model embodiment in a first aspect, in a sixth possible implementation, the cooling duct is U
Type cooling duct.
The 6th kind of possible implementation based on the utility model embodiment first aspect, in the 7th kind of possible realization
In mode, the cooling duct is using the axis of the motor shaft as symmetry axis.
Based on the utility model embodiment in a first aspect, in the 8th kind of possible implementation, first inlet
Cross-sectional shape with first liquid outlet is circle.
Compared with prior art, beneficial effect is the utility model: the utility model inside motor shaft by opening up
The cooling duct of the first inlet and the second inlet, benefit are surround and formed on motor shaft end along the axial direction of motor shaft
It is passed through coolant liquid to first inlet with liquid in-out device, makes coolant liquid by cooling duct, and is arranged from the first liquid outlet
Out, unroll path of the coolant liquid in motor shaft can sufficiently take away the heat of motor shaft, and other component also can in motor
Cool down with the cooling of motor shaft, so as to reach ideal cooling effect.
Detailed description of the invention
Fig. 1 is motor overall structure diagram provided by the embodiment of the utility model；
Fig. 2 is A-A in Fig. 1 to schematic cross-sectional view；
Fig. 3 is motor left view structural representation shown in FIG. 1.
In the accompanying drawings, each appended drawing reference indicates:
1, liquid in-out device；2, connector sleeve；3, rear end cap；4, motor shaft；5, radiator fan；6, rotor；7, stator；8, preceding
End cap；9, the second liquid outlet；10, the second inlet；11, the first inlet；12, the first liquid outlet；13, shell；14, it seals
Part；15, go out sap cavity；16, admission chamber.
Specific embodiment
To enable the goal of the invention, feature, advantage of the utility model more obvious and understandable, below in conjunction with this
Attached drawing in utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shows
So, the described embodiments are only a part of the embodiments of the utility model, and not all embodiments.Based on the reality in the present invention
Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs to this
The range of utility model protection.
The utility model embodiment provides a kind of motor, please refers to Fig. 1 and Fig. 2, which includes:
Stator 7, rotor 6, shell 13, drive end bearing bracket 8, rear end cap 3 and motor shaft 4；Before drive end bearing bracket 8 is fixed on shell 13
End, rear end cap 3 are fixed on 13 rear end of shell, and stator 7 and rotor 6 are installed in shell 13, and rotor 6 is sheathed in stator 7, motor
Axis 4 is arranged in rotor 6.
Further, referring to fig. 2, in axial direction circular cooling duct is offered inside motor shaft 4, and cooling logical
Road forms the first inlet 11 and the first liquid outlet 12 in the end of motor shaft 4, is equipped on the end of motor shaft 4 for the
The liquid in-out device 1 that one inlet 11 is passed through coolant liquid and the coolant liquid at the first liquid outlet 12 is discharged.Optionally, first into
Liquid mouth 11 is equipped with feed liquor check valve, and the first liquid outlet 12 is equipped with out liquid check valve, and check valve can guarantee that motor shaft 4 is rotating
In the process, the flow direction of coolant liquid is consistent in axis, to take away heat.
Further, referring to fig. 2, connector sleeve 2 is provided between 4 end of liquid in-out device 1 and motor shaft, in connector sleeve 2
Between be provided with partition, partition isolates an admission chamber 16 inside connector sleeve 2 and one goes out sap cavity 15；In liquid in-out device 1
Portion is provided with the second inlet 10 and the second liquid outlet 9；First inlet 11, admission chamber 16 and the second inlet 10 form one
Access, the first liquid outlet 12, sap cavity 15 and the second liquid outlet 9 form another access out.In addition, connector sleeve 2 and liquid in-out fill
Setting can be around the axis relative rotation of motor shaft 4 between 1.
The cooling duct of the present embodiment is U-shaped cooling duct, is located in motor shaft and using motor shaft axis as symmetry axis pair
Claim arrangement, path, only through the path length of motor shaft axis, can sufficiently take away heat than cooling duct.And because heat passes
It leads, other component can also cool down with the cooling of motor shaft in motor, have good cooling effect.In other embodiments
In, the cooling duct in motor shaft may be other shapes.Optionally, the first inlet 11 and the first liquid outlet 12 are circle
Column structure.
In addition, referring to figs. 2 and 3, radiator fan 5 is socketed on the motor shaft 4 of the present embodiment, the setting of radiator fan 5 exists
In cavity between rear end cap 3 and stator 7 and its air-out direction is towards 4 end of motor shaft.The intake-outlet of motor shaft 4 is dissipating
At 5 air-out direction of Hot-air fan, even if leaking in the case where long-term work abrasion, water can also be blown to outside motor, no
Motor can be entered and cause short circuit.
In addition, the connecting portion between the connector sleeve 2 and liquid in-out device 1 and 4 end of motor shaft of the present embodiment uses
Sealing element 14 seals.Sealing effect can guarantee using sealing element 14, after the first inlet 11 of liquid in-out device 1 is passed through water,
It can guarantee that passing in and out water cavity pressure difference occurs.In other embodiments, copper plug can also be set in connecting portion, as long as can guarantee close
Seal effect.
Therefore motor provided in this embodiment, including stator 7, rotor 6, shell 13, it is fixed on 13 front end of shell
Drive end bearing bracket 8, the rear end cap 3 and motor shaft 4 for being fixed on 13 rear end of shell；Opened up inside motor shaft 4 in axial direction surround and
The cooling duct of the first inlet 11 and the first liquid outlet 12 is formed on 4 end of motor shaft；The motor of the present embodiment further includes
Liquid in-out device 1, is provided with connector sleeve 2 between 4 end of liquid in-out device 1 and motor shaft, connector sleeve 2 and liquid in-out device 1 it
Between can be around the axis relative rotation of motor shaft 4；Interconnecting piece between 4 end of connector sleeve 2, liquid in-out device 1 and motor shaft
Position is sealed with sealing element 14.Since motor provided by the invention is only provided with cooling duct connector in the same end, therefore only need to protect
It demonstrate,proves the air-tightness of one end for being provided with cooling duct connector to be sufficient, and the first inlet 11 of 4 end of motor shaft and the
One liquid outlet 12 and liquid in-out device 1 connected using connector sleeve 2 and connector sleeve 2, liquid in-out device 1 and 4 end of motor shaft into
Connecting portion between liquid outlet is sealed with sealing element 14, and air-tightness is guaranteed, therefore is not just had to the machining accuracy of main shaft
Too high requirement can reduce processing cost；It is passed through coolant liquid to the second inlet 10 of liquid in-out device 1, is rotated in motor shaft 4
In the process, admission chamber 16 and the out periodically alternately raising of the pressure of sap cavity 15 can be made by being continually fed into coolant liquid.When admission chamber 16 is pressed
When strong raising, 15 pressure of sap cavity is reduced out, and coolant liquid is flowed into from 4 first inlet 11 of motor shaft, is flowed out from the first liquid outlet 12；
When 15 pressure of sap cavity increases out, 16 pressure of admission chamber is reduced, and due to the unidirectional valve action of 4 intake-outlet of motor shaft, water will not
It is flowed into from water outlet.In this way, coolant liquid has fixed circulation canal, and road of the coolant liquid in motor shaft 4 in motor shaft
Diameter, only through the path length of 4 axis of motor shaft, can sufficiently take away the heat of motor shaft than cooling duct, enhance cooling effect.
In several embodiments provided by the utility model, it should be understood that disclosed device, it can be by other
Mode realize.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
The above are to a kind of description of motor provided by the utility model, for those of ordinary skill in the art, according to
According to the thought of the utility model embodiment, there will be changes in the specific implementation manner and application range, to sum up, this explanation
Book content should not be construed as limiting the invention.
Claims (9)
1. a kind of motor, including stator, rotor, shell, drive end bearing bracket, rear end cap and motor shaft, the drive end bearing bracket are fixed on shell
Body front end, the rear end cap are fixed on housing rear end, and the stator and rotor are installed in the shell, and the rotor is sheathed on
In the stator, the motor shaft is arranged in the rotor, which is characterized in that is offered inside the motor shaft along motor shaft
The circular cooling duct of axial direction, and the cooling duct forms the first inlet and the in the motor the tip of the axis
One liquid outlet；It is equipped on the motor the tip of the axis for being passed through coolant liquid to first inlet and going out described first
The liquid in-out device of coolant liquid discharge at liquid mouth.
2. motor according to claim 1, which is characterized in that first inlet is equipped with feed liquor check valve, described
First liquid outlet is equipped with out liquid check valve.
3. motor according to claim 2, which is characterized in that set between the liquid in-out device and the motor shaft end
It is equipped with connector sleeve, the connector sleeve is rotated relative to the liquid in-out device with the motor shaft, set among the connector sleeve
It is equipped with partition, the partition isolates the admission chamber that one is connected to first inlet and one inside the connector sleeve
What is be connected to first liquid outlet goes out sap cavity；The liquid in-out device is internally provided with the second inlet and the second liquid outlet；
During motor shaft rotation, second inlet with the admission chamber and out sap cavity alternate communication respectively is described
Second liquid outlet respectively with it is described go out sap cavity and admission chamber alternate communication.
4. motor according to any one of claims 1 to 3, which is characterized in that it is socketed with radiator fan on the motor shaft,
The radiator fan is arranged in the cavity between the rear end cap and the stator, and the air-out direction of the radiator fan
Towards the motor shaft end.
5. motor according to claim 3, which is characterized in that the connector sleeve, the liquid in-out device and the electricity
Connecting portion between arbor end is sealed with sealing element.
6. motor according to claim 5, which is characterized in that the sealing element is sealing ring.
7. motor according to claim 1, which is characterized in that the cooling duct is U-shaped cooling duct.
8. motor according to claim 7, which is characterized in that the cooling duct is symmetrical with the axis of the motor shaft
Axis.
9. motor according to claim 1, which is characterized in that first inlet and first liquid outlet it is transversal
Face shape is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822039917.9U CN209402312U (en) | 2018-12-04 | 2018-12-04 | A kind of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822039917.9U CN209402312U (en) | 2018-12-04 | 2018-12-04 | A kind of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209402312U true CN209402312U (en) | 2019-09-17 |
Family
ID=67881870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822039917.9U Active CN209402312U (en) | 2018-12-04 | 2018-12-04 | A kind of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209402312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546792A (en) * | 2018-12-04 | 2019-03-29 | 深圳先进技术研究院 | A kind of motor |
| CN111107734A (en) * | 2019-09-27 | 2020-05-05 | 法雷奥西门子新能源汽车(深圳)有限公司 | Electronic equipment and radiator thereof |
-
2018
- 2018-12-04 CN CN201822039917.9U patent/CN209402312U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546792A (en) * | 2018-12-04 | 2019-03-29 | 深圳先进技术研究院 | A kind of motor |
| CN111107734A (en) * | 2019-09-27 | 2020-05-05 | 法雷奥西门子新能源汽车(深圳)有限公司 | Electronic equipment and radiator thereof |
| CN111107734B (en) * | 2019-09-27 | 2021-03-16 | 法雷奥西门子新能源汽车(深圳)有限公司 | Electronic equipment and radiator thereof |
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