CN209233664U - A kind of fluid-cooled electrical machine shell and fluid-cooled electrical machine - Google Patents
A kind of fluid-cooled electrical machine shell and fluid-cooled electrical machine Download PDFInfo
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- CN209233664U CN209233664U CN201920109194.7U CN201920109194U CN209233664U CN 209233664 U CN209233664 U CN 209233664U CN 201920109194 U CN201920109194 U CN 201920109194U CN 209233664 U CN209233664 U CN 209233664U
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- active vibration
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Abstract
The utility model discloses a kind of fluid-cooled electrical machine shell and fluid-cooled electrical machines, wherein fluid-cooled electrical machine shell includes shell and active vibration element, enclosure interior is equipped with a plurality of coolant flow channel being arranged in juxtaposition, a plurality of coolant flow channel is axially distributed along shell, active vibration element is connected in coolant flow channel, active vibration element is used to vibrated by itself to drive the coolant liquid in coolant flow channel, active vibration element is connected with power supply line and the power supply line is drawn outward from housing wall, the position seals setting that power supply line is drawn outward from housing wall.The utility model weakens the boundary layer of motor heat-transfer surface coolant liquid using the vibrating reed that active vibration element or active vibration element connect, and increases the convection transfer rate of heat-transfer surface, influences on the mainstream of coolant flow channel smaller；The convective heat transfer resistance of motor wall surface and coolant liquid can be reduced, enhancing motor cooling performance reduces motor temperature rise when not increasing the coolant rate of motor, not changing the cooling shell of motor, do not influence motor crushing.
Description
Technical field
The utility model belongs to motor cooling technology, and in particular to a kind of fluid-cooled electrical machine shell and fluid-cooled electrical machine.
Background technique
The type of cooling of motor mainly has natural cooling, air-cooled, oily cold, water cooling etc. at present, takes away motor by fluid
Heat.
For the forcing functions situation such as air-cooled, water cooling, since the viscosity of air and water is very low, the thunder of fluid under normal circumstances
Promise number is very big, and flowing is in turbulent flow, and preferably (water cooling to forced stream heat transfer coefficient is generally 1000 ~ 15000 to convective heat transfer effect
(W/m2/ K)).
The case where for using the high viscositys coolant liquid such as cooling oil, since Reynolds number is very low in most cases, flowing belongs to
In laminar flow, convective heat transfer effect is weaker, and (oil is cold to be generally 100 ~ 500 (W/m to forced stream heat transfer coefficient2/ K)).
The mode of enhancing cooling effect mainly has: increasing the flow of coolant liquid, the area for increasing heat-transfer surface and enhancing wall surface
The modes such as heat convection.First two mode is more commonly used, but increases the flow of coolant liquid, will increase the pressure of electric machine casing runner
Damage increases Hydraulic Power System pressure, increases disclosure risk, increases blower/pump power, improves cost.Increase heat-transfer surface, needs
Increase runner quantity or area, will increase the volume of the cooling shell of motor, increase the costs such as processing, increase the crushing of coolant liquid
Deng.
The power of heat convection depends on the turbulent flow of wall surface fluid, and size is reflected using convection transfer rate.Work as wall surface
Turbulence excess when, the mixing of flowing can be accelerated, weaken fluid boundary layer, the effective convection transfer rate for improving wall surface.
But implementation is few at present, only increases flow and increases the passive raising turbulent flow pattern of the spoilers such as flow-disturbing fin.But
It is that these modes are all uniformly to increase the turbulent flow of entire runner, and the influence to crushing is very big.Meanwhile the quantity of fin is few, then increases
Add the effect of turbulent flow insufficient；The quantity of fin is more, then can upset mainstream, substantially increases crushing, improves cooling system pressure, simultaneously
Increase the production difficulty and cost of cooling shell.Especially for the high viscositys coolant liquid such as cooling oil, since viscosity is very high, use
It is weaker with the effect that upper type increases turbulent flow raising convection transfer rate.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of fluid-cooled electrical machine in view of the above shortcomings of the prior art
The vibration that shell and fluid-cooled electrical machine, this fluid-cooled electrical machine shell and fluid-cooled electrical machine use active vibration element or active vibration element to connect
Movable plate weakens the boundary layer of motor heat-transfer surface coolant liquid, increases the convection transfer rate of heat-transfer surface, to the mainstream of coolant flow channel
It influences smaller；Simultaneously can in the coolant rate for not increasing motor, do not change the cooling shell of motor, do not influence motor crushing etc.
In the case of, the convective heat transfer resistance of motor wall surface and coolant liquid is reduced, enhancing motor cooling performance reduces motor temperature rise.
To realize the above-mentioned technical purpose, the technical solution that the utility model is taken are as follows:
A kind of fluid-cooled electrical machine shell, including shell, the enclosure interior is equipped with a plurality of coolant flow channel being arranged in juxtaposition, a plurality of
The coolant flow channel is distributed along the axial direction of shell, and fin is equipped between adjacent coolant flow channel, and the end of the fin is equipped with conducting
Slot and conductance slot are connected to two neighboring coolant flow channel, are connected with active vibration element, the active vibration in the coolant flow channel
Element is used to drive the coolant liquid in coolant flow channel by the vibration of itself, the active vibration element be connected with power supply line and
The power supply line is drawn outward from housing wall, the position seals setting that the power supply line is drawn outward from housing wall.
As the further improved technical solution of the utility model, one or more are connected in each coolant flow channel
Active vibration element and active vibration element is connected with vibrating reed.
As the further improved technical solution of the utility model, the both ends of each coolant flow channel are respectively connected with actively
Vibrating reed is connected between vibrating elements and the active vibration element at both ends.
As the further improved technical solution of the utility model, the vibrating reed close to the coolant flow channel inner wall and
Gap is equipped with the inner wall of coolant flow channel.
As the further improved technical solution of the utility model, being distributed with for being spaced on the coolant flow channel inner wall is multiple
Positioning column offers location hole compatible with positioning column on the vibrating reed, and the positioning column is located at determining for the vibrating reed
In the hole of position.
As the further improved technical solution of the utility model, the sectional area of the active vibration element is less than described cold
But the sectional area of runner, the volume of the active vibration element are less than the volume of the conductance slot.
As the further improved technical solution of the utility model, the vibrating reed surface offers slot, and the slot is side
Shape or circle.
As the further improved technical solution of the utility model, the active vibration element uses piezoelectric type vibration element
Or electromagnetic vibration element.
As the further improved technical solution of the utility model, outlet hole, the master are offered on the housing exterior walls
The power supply line of dynamic vibrating elements connection is connect across the outlet hole of housing exterior walls and power supply line and outlet hole by cable waterproof
Head is tightly connected, and the power supply line uses waterproof cable.
To realize the above-mentioned technical purpose, another technical solution that the utility model is taken are as follows:
A kind of fluid-cooled electrical machine, including stator module, rotor assembly and fluid-cooled electrical machine shell, the fluid-cooled electrical machine shell
Inside is equipped with stator module, and the disposed inboard of the stator module has rotor assembly.
The utility model has the following beneficial effects:
(1) the utility model installs active vibration element in coolant flow channel wall surface, can pass through active vibration element itself
Vibration cooling fluid (coolant liquid) is accelerated, vibrating reed vibration can also be driven to drive fluid by active vibration element,
Increase cooling fluid turbulent flow, actively weakens or destroy the boundary layer of cooling fluid on heat-transfer surface, to increase convection transfer rate；
The sectional area of the active vibration element of the utility model is less than the sectional area of coolant flow channel, will not block coolant flow channel.Vibrating reed
Surface offers slot, enters in coolant flow channel conducive to the fluid accelerated by vibrating reed.
(2) the utility model can not increase motor cooling fluid flow, not change the cooling shell of motor, not influence electricity
When machine crushing, increase cooling fluid turbulent flow, reduce the convective heat transfer resistance of motor wall surface and coolant liquid, enhancing motor is cold
But performance, reduction motor temperature rise.The utility model is suitable for the high viscositys coolant liquids such as cooling oil.
Detailed description of the invention
Fig. 1 is the axial view of the fluid-cooled electrical machine shell of the utility model.
Fig. 2 is the partial section view of the fluid-cooled electrical machine shell of the utility model.
Fig. 3 is the connection schematic diagram of the utility model active vibration element and a kind of vibrating reed.
Fig. 4 is the connection schematic diagram of the utility model active vibration element and another vibrating reed.
Specific embodiment
Specific embodiment of the present utility model is further illustrated below according to Fig. 1 to Fig. 4:
The present embodiment provides a kind of fluid-cooled electrical machine, including stator module, rotor assembly and fluid-cooled electrical machine shell, the liquid
Stator module is installed, the disposed inboard of the stator module has rotor assembly on the inside of cool electric machine shell.
Referring to Fig. 1 and Fig. 2, above-mentioned fluid-cooled electrical machine shell, including shell 1 and active vibration element 3, inside the shell 1
Equipped with a plurality of coolant flow channel 2 being arranged in juxtaposition, axial direction distribution of a plurality of coolant flow channel 2 along shell 1, adjacent coolant flow channel 2
Between be equipped with fin 10, the end of the fin 10 is equipped with conductance slot 4 and conductance slot 4 is connected to two neighboring coolant flow channel 2, a plurality of
The coolant flow channel 2 forms cooling duct after being connected to by conductance slot 4, the shell 1 is equipped with cooling liquid inlet and coolant liquid
Outlet, the end or middle part of the cooling duct are connected to cooling liquid inlet or cooling liquid outlet, and cooling liquid inlet is connected to one
Coolant flow channel 2, cooling liquid outlet are connected to another coolant flow channel 2, and coolant liquid is used to flow into coolant flow channel 2 from cooling liquid inlet,
After flowing through multiple coolant flow channels 2, flowed out from cooling liquid outlet；Active vibration element 3 is connected in the coolant flow channel 2.This reality
Motor can be cooled down by the coolant liquid flowed in cooling duct 2 by applying example, can also reinforce runner by active vibration element 3
Heat convection, enhance cooling effect.Active vibration element 3 is used for cold in coolant flow channel 2 to drive by the vibration of itself
But liquid, active vibration element 3 is connected with power supply line 9 and the power supply line 9 is drawn outward from 1 wall of shell, and the power supply line 9 is from shell
The position excellent sealing that 1 wall is drawn outward.
One or more active vibration elements 3 are connected in each of the present embodiment coolant flow channel 2, it is effective to guarantee
Decrease fluid boundary layer.The active vibration element 3 is connected with vibrating reed 5, effect of the vibrating reed 5 in active vibration element 3
Lower realization vibration, adjustable amplitude when vibrating reed 5 is run will not destroy 1 material of shell.Active vibration element 3 can be located at cold
But 2 middle part of runner or end.Active vibration element 3 can connect 1 vibrating reed 5, also can connect 2 vibrating reeds 5.
Referring to fig. 2, further, the both ends of each of the present embodiment coolant flow channel 2 are respectively connected with active vibration member
Vibrating reed 5 is connected between part 3 and the active vibration element 3 at both ends.Inner wall of the vibrating reed 5 close to the coolant flow channel 2
And gap is equipped with the inner wall of coolant flow channel 2.What is be spaced on 2 inner wall of coolant flow channel is distributed with multiple positioning columns 6, the vibration
It is as shown in Figure 3 and Figure 4 that location hole 8(compatible with positioning column 6 is offered on movable plate 5), the positioning column 6 is located at the vibration
In the location hole 8 of piece 5,2 inner room of coolant flow channel every positioning column 6, be used to constraint vibration piece 5, be subjected to displacement it not, and not
Influence its vibrating effect.Referring to Fig. 3 and Fig. 4,5 surface of vibrating reed offers slot 7, conducive to the fluid accelerated by vibrating reed 5
Into in coolant flow channel 2.The slot 7 is rectangular (referring to Fig. 3) or circle (referring to fig. 4).The active vibration member of the present embodiment
The sectional area of part 3 is less than the sectional area of the coolant flow channel 2, and the volume of the active vibration element 3 is less than the conductance slot 4
Volume, small on mainstream influence, the influence to crushing is small.
The active vibration element 3 of the present embodiment is using the element with active vibration function, such as piezoelectric type vibration element
Or electromagnetic vibration element (vibrator), the present embodiment can drive fluid separately through the vibration of active vibration element 3,
By the vibration of active vibration element 3 itself and it can drive the vibration of vibrating reed 5 and drive fluid, reinforce coolant flow channel 4
Heat convection, enhance cooling effect.
Outlet hole is offered on 1 outer wall of shell of the present embodiment, the power supply that all active vibration elements 3 can be connected
It is connect across the outlet hole of 1 outer wall of shell and power supply line 9 and outlet hole by cable waterproof after line 9 is each other in series or parallel
Head is tightly connected, and the power supply line 9 uses waterproof cable.
The size of the active vibration element 3 of the present embodiment is determined according to installation site, and cannot influence mainstream.
Vibrating diaphragm substitution can be used in the vibrating reed 5 of the present embodiment, and there are many direction of vibration of vibrating reed 5: with wall surface
Vertical direction, parallel wall surface and with mainstream parallel direction, parallel wall surface and with mainstream vertical direction and other direction of vibration.
When the present embodiment is in use, firstly, coolant liquid is flowed into coolant flow channel 2 from the cooling liquid inlet on shell 1, most
It is flowed out afterwards from cooling liquid outlet, is the power supply of active vibrating elements 3 by power supply line 9 when coolant liquid flows in coolant flow channel, it is main
Dynamic vibrating elements 5 works, and drives the vibration of vibrating reed to reinforce cooling down by the vibration of active vibration element 5, active vibration element 5
The heat convection of runner 2 enhances cooling effect.
The present embodiment installs active vibration element 3 in the heat-transfer surface of fluid-cooled electrical machine shell, passes through the vibration of active vibration element 3
Dynamic and vibrating reed vibration increases the flow velocity of heat-transfer surface fluid, improves turbulivity, actively weakens or destroy the boundary layer of fluid,
To increase wall surface convection transfer rate, the effective heat convection for enhancing coolant liquid reduces motor temperature rise.The present embodiment it is cold
But liquid can be the high viscositys coolant liquid such as cooling oil.Coolant flow channel can be series, parallel runner.It is installed in coolant flow channel wall surface
Active vibration element 3, the fluid of wall surface is driven by active vibration element 3, to reach decrease or destroy fluid boundary layer, is increased
The purpose of strong convection heat transfer.
The protection scope of the utility model includes but is not limited to embodiment of above, and the protection scope of the utility model is to weigh
Subject to sharp claim, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that are each fallen within
The protection scope of the utility model.
Claims (10)
1. a kind of fluid-cooled electrical machine shell, which is characterized in that including shell and active vibration element, the enclosure interior is equipped with a plurality of
The coolant flow channel being arranged in juxtaposition, a plurality of coolant flow channel are distributed along the axial direction of shell, and fin is equipped between adjacent coolant flow channel,
The end of the fin is equipped with conductance slot and conductance slot is connected to two neighboring coolant flow channel, is connected in the coolant flow channel actively
Vibrating elements, the active vibration element are used to drive the coolant liquid in coolant flow channel, the active by the vibration of itself
Vibrating elements is connected with power supply line and the power supply line is drawn outward from housing wall, the position that the power supply line is drawn outward from housing wall
Set sealed set.
2. fluid-cooled electrical machine shell according to claim 1, which is characterized in that be connected with 1 in each coolant flow channel
Or multiple active vibration elements and active vibration element are connected with vibrating reed.
3. fluid-cooled electrical machine shell according to claim 2, which is characterized in that the both ends of each coolant flow channel are all connected with
Have and is connected with vibrating reed between active vibration element and the active vibration element at both ends.
4. fluid-cooled electrical machine shell according to claim 3, which is characterized in that the vibrating reed is close to the coolant flow channel
Inner wall and with the inner wall of coolant flow channel be equipped with gap.
5. fluid-cooled electrical machine shell according to claim 4, which is characterized in that the distribution being spaced on the coolant flow channel inner wall
There are multiple positioning columns, location hole compatible with positioning column is offered on the vibrating reed, the positioning column is located at the vibration
The positioning hole of piece.
6. fluid-cooled electrical machine shell according to claim 5, which is characterized in that the sectional area of the active vibration element is less than
The sectional area of the coolant flow channel, the volume of the active vibration element are less than the volume of the conductance slot.
7. fluid-cooled electrical machine shell according to claim 6, which is characterized in that the vibrating reed surface offers slot, described
Slot is rectangular or round.
8. fluid-cooled electrical machine shell according to claim 7, which is characterized in that the active vibration element is shaken using piezoelectric type
Dynamic element or electromagnetic vibration element.
9. fluid-cooled electrical machine shell according to claim 1, which is characterized in that outlet hole is offered on the housing exterior walls,
The power supply line of the active vibration element connection passes through cable across the outlet hole of housing exterior walls and power supply line and outlet hole
Waterproof connector is tightly connected, and the power supply line uses waterproof cable.
10. a kind of fluid-cooled electrical machine, which is characterized in that including stator module, rotor assembly and such as any one of claim 1 to 9
The fluid-cooled electrical machine shell is equipped with stator module, the inside cloth of the stator module on the inside of the fluid-cooled electrical machine shell
It is equipped with rotor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920109194.7U CN209233664U (en) | 2019-01-23 | 2019-01-23 | A kind of fluid-cooled electrical machine shell and fluid-cooled electrical machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920109194.7U CN209233664U (en) | 2019-01-23 | 2019-01-23 | A kind of fluid-cooled electrical machine shell and fluid-cooled electrical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209233664U true CN209233664U (en) | 2019-08-09 |
Family
ID=67510714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920109194.7U Active CN209233664U (en) | 2019-01-23 | 2019-01-23 | A kind of fluid-cooled electrical machine shell and fluid-cooled electrical machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209233664U (en) |
-
2019
- 2019-01-23 CN CN201920109194.7U patent/CN209233664U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315000 No. 308, Xiaogang Anju Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Feishi Technology Co., Ltd Address before: 315803 308 Anju Road, Xiaogang, Beilun District, Ningbo, Zhejiang Patentee before: PHASE MOTION CONTROL NINGBO Ltd. |
|
| CP03 | Change of name, title or address |