CN105099082A - Annular water channel structure of motor and motor system - Google Patents
Annular water channel structure of motor and motor system Download PDFInfo
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- CN105099082A CN105099082A CN201510604877.6A CN201510604877A CN105099082A CN 105099082 A CN105099082 A CN 105099082A CN 201510604877 A CN201510604877 A CN 201510604877A CN 105099082 A CN105099082 A CN 105099082A
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Abstract
The invention provides an annular water channel structure of a motor. The annular water channel structure comprises an annular inner sleeve and an outer sleeve, wherein the outer sleeve is sleeved outside the inner sleeve, end plates are arranged at the two ends of the inner sleeve so as to form an annular closed water through space among the inner sleeve, the end plates and the outer sleeve, a partition plate and cooling ribs are arranged outside the inner sleeve, the partition plate is used for separating a water through channel in the water through space, the water through channel is used for enabling water in the water through channel to flow around the axis of the motor, the cooling ribs are arranged in the water through channel, a water inlet hole and a water outlet hole are arranged on the outer sleeve, the position of the water inlet hole is matched with one end of the water through channel, the position of the water outlet hole is matched with the other end of the water through channel, and the water through space is communicated with the outside through the water inlet hole and the water outlet hole.
Description
Technical field
The present invention relates to the field of radiating of motor, particularly relate to a kind of motor water annulus structure and electric system.
Background technology
Due to the development of high power density motor, motor volume is more and more less, therefore, the loss produced in unit volume is more and more higher, electric machine temperature rise increases, and electric machine temperature rise becomes the problem that electromechanics trade must solve gradually, and the temperature rise of cooling performance to motor of motor is most important.A lot of occasion motor cools the radiating requirements that can not meet motor naturally at present, and in addition to the demand reducing vibration noise of motor, water-cooled, oil-cooled motor replace traditional ventilated machine gradually.And water-cooled due to fail safe good, cost is low is reasonable cooling means, and the cooling water channel of motor has spirality channel, water annulus, C type water channel and labyrinth type water channel etc.
Traditional water annulus, can form turbulent flow, but in water channel, the foundation area of water and structure is little, and the heat-sinking capability of motor, not as good as labyrinth type, therefore needs a kind of contact area that can increase water annulus and water, and do not affect the structure water channel of the flow resistance of current.
Summary of the invention
The technical problem to be solved in the present invention is the contact area how increasing water annulus and water, and does not affect the structure water channel of the flow resistance of current.
The invention provides a kind of motor water annulus structure, the inner sleeve comprising ring-type and the overcoat be sheathed on outside described inner sleeve, described inner sleeve two ends are provided with end plate, thus make described inner sleeve, the water flowing space of closed ring-type is formed between end plate and overcoat, dividing plate and radiating ribs is provided with outside described inner sleeve, described dividing plate in order to be separated out a water flowing passage in described water flowing space, described water flowing passage can flow around the axle center of motor in order to make water wherein, described radiating ribs is positioned at described water flowing passage, described outer putting is provided with an inlet opening and an apopore, the position of described inlet opening is mated with one end of described water flowing passage, the position of described apopore is mated with the other end of described water flowing passage, described water flowing space is communicated with outer with apopore by described inlet opening.
Optionally, described dividing plate comprises axial dividing plate and at least two radial dividing plates, and the described water flowing compartition of ring-type is open loop by described axial dividing plate;
The described water flowing compartition of open loop is some annular subchannels by least two described radial dividing plates, and described annular subchannel is arranged around electrical axis, is communicated with between annular subchannel by the port on described radial dividing plate; Thus make some described annular subchannels form the described water flowing passage with unique circulation path.
Optionally, described inlet opening is communicated with the annular subchannel mediated.
Optionally, the quantity of described annular subchannel is three, wherein, respectively be the second annular that the first annular that the first end plate and the first radial dividing plate formed formed from passage, the first radial dividing plate and the second radial dividing plate vertically from passage, and the 3rd annular subchannel that the second radial dividing plate and the second end plate are formed;
Described first radial dividing plate is provided with the first port, described second radial dividing plate is provided with the second port and third connectivity mouth, described first port and third connectivity mouth are all positioned at the first side of described axial dividing plate, described second port is positioned at the second side of described axial dividing plate, and described first port is communicated with described third connectivity mouth.
Optionally, described motor water annulus structure: also comprise connecting partition, described connecting partition is separated out a connection channel in described second annular in passage, and described first port is communicated with by described interface channel with described third connectivity mouth.
Optionally, gap is provided with between the end of described radiating ribs and described axial dividing plate.
Optionally, described radiating ribs along described inner sleeve circumferentially.
Optionally, the shape and structure of described overcoat mates with the currency structure of described water flowing passage.
Present invention also offers a kind of electric system, at least comprise iron core, also comprise motor water annulus structure provided by the invention, described motor water annulus structure ring is located at outside described iron core.
Water annulus structure of the present invention is simple, increases the intensity that radiating ribs not only can strengthen structure, increases the contact area with water, improves the convection transfer rate of current, reduces the temperature rise of motor, ensure the normal operation of motor.
The cooling performance of motor depends on the size of convection transfer rate and area of dissipation, should increase area of dissipation as far as possible, improves the convection transfer rate of water and structure.The equivalent diameter of the thermal conductivity of convection transfer rate and cooling fluid, density, specific heat capacity, viscosity, flow velocity and cooling water channel is relevant, for determining that cooling fluid is the structure of water, increase convection transfer rate by increasing the flow velocity of water, pipeline equivalent diameter to be reduced and regulate.Relative to raising convection transfer rate, increase area of dissipation effective equally to raising radiating effect, and feasibility is better.The present invention is based on the basis of original water annulus, radiating ribs is added in original tank, this part radiating ribs volume is little, very little on the flow resistance impact of water, and adds somewhat to the turbulent flow performance of water, because the impact of turbulent flow is compared with traditional water annulus structure, under same traffic, the mean flow rate of cooling water increases to some extent.Add the contact area that radiating ribs considerably increases structure and water, strengthen heat radiation, but also add the intensity of structure, extend the useful life of structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of overcoat in one embodiment of the invention;
Fig. 2 is the structural representation of inner sleeve in one embodiment of the invention;
Fig. 3 is the structural representation of electric system in one embodiment of the invention;
In figure, 1-motor water annulus structure; 11-overcoat; 12-water inlet; 13-delivery port; 14-inner sleeve; 141,142-end plate; The axial dividing plate of 143-; 144-radiating ribs; 145-second port; 146-third connectivity mouth; 147-first port; 148-connecting partition; The radial dividing plate of 149-; 2-water; 3-iron core.
Embodiment
Below with reference to Fig. 1 to Fig. 3, motor water annulus structure provided by the invention and electric system are explained in detail, it is optional embodiment of the present invention, can think, those skilled in the art, in the scope not changing the present invention's spirit and content, can modify to it and polish.
Please comprehensive reference Fig. 1 to Fig. 3, the invention provides a kind of motor water annulus structure 1, the inner sleeve 14 comprising ring-type and the overcoat 11 be sheathed on outside described inner sleeve 14, described inner sleeve 14 two ends are provided with end plate 141 and 142, thus make described inner sleeve 14, form the water flowing space of closed ring-type between end plate 141,142 and overcoat 11, certainly, closing in closed not absolute sense alleged here, just say and define so water through chamber, such as, it may have the mouth of water flowing.
In the present invention, dividing plate and radiating ribs 144 is provided with outside described inner sleeve 14, described dividing plate in order to be separated out a water flowing passage in described water flowing space, described water flowing passage can flow around the axle center of motor in order to make water wherein, described radiating ribs 144 is positioned at described water flowing passage, described overcoat 11 is provided with an inlet opening 12 and an apopore 13, the position of described inlet opening 12 is mated with one end of described water flowing passage, the position of described apopore 13 is mated with the other end of described water flowing passage, described water flowing space is communicated with outer with apopore by described inlet opening.Here water flowing passage is interpreted as the passage with unique circulation path.
Relevant radiating ribs 144, its along can described inner sleeve circumferentially, also can match with the layout of described baffle plate.Its advantage is:
Water annulus structure of the present invention is simple, increases the intensity that radiating ribs not only can strengthen structure, increases the contact area with water, improves the convection transfer rate of current, reduces the temperature rise of motor, ensure the normal operation of motor.
The cooling performance of motor depends on the size of convection transfer rate and area of dissipation, should increase area of dissipation as far as possible, improves the convection transfer rate of water and structure.The equivalent diameter of the thermal conductivity of convection transfer rate and cooling fluid, density, specific heat capacity, viscosity, flow velocity and cooling water channel is relevant, for determining that cooling fluid is the structure of water, increase convection transfer rate by increasing the flow velocity of water, pipeline equivalent diameter to be reduced and regulate.Relative to raising convection transfer rate, increase area of dissipation effective equally to raising radiating effect, and feasibility is better.The present invention is based on the basis of original water annulus, radiating ribs is added in original tank, this part radiating ribs volume is little, very little on the flow resistance impact of water, and adds somewhat to the turbulent flow performance of water, because the impact of turbulent flow is compared with traditional water annulus structure, under same traffic, the mean flow rate of cooling water increases to some extent.Add the contact area that radiating ribs considerably increases structure and water, strengthen heat radiation, but also add the intensity of structure, extend the useful life of structure.
In the further alternative embodiment of the present invention, please refer to Fig. 2, described dividing plate comprises axial dividing plate 143 and at least two radial dividing plates 149, and the described water flowing compartition of ring-type is open loop by described axial dividing plate 143; Namely axial dividing plate 143 makes the water of its both sides cannot circulate through axial dividing plate 143;
The described water flowing compartition of open loop is some annular subchannels by least two described radial dividing plates 149, and described annular subchannel is arranged around electrical axis, is communicated with between annular subchannel by the port on described radial dividing plate; Thus making some described annular subchannels form the described water flowing passage with unique circulation path, the circulation referred to here can be between adjacent annular subchannel, may not be adjacent.
In the preferred embodiment of the present invention, described inlet opening 12 is communicated with the annular subchannel mediated.Compared with the water annulus of conventional axial, this optional embodiment of the present invention adopts and cools from the middle part that electric machine temperature rise is the highest, then through sluice, one end of motor is cooled, finally flow out from the other end of motor, reduce electric machine temperature rise, but also solve the defect that water annulus exports, entrance can only be distributed in motor two ends.
Further, this embodiment gives concrete scheme:
Please refer to Fig. 2, the quantity stating annular subchannel is three, wherein, respectively be the second annular that the first annular that the first end plate 142 and the first radial dividing plate formed formed from passage, the first radial dividing plate and the second radial dividing plate vertically from passage, and the 3rd annular subchannel that the second radial dividing plate and the second end plate are formed;
Described first radial dividing plate is provided with the first port 147, described second radial dividing plate is provided with the second port 145 and third connectivity mouth 146, described first port 147 and third connectivity mouth 146 are all positioned at the first side of described axial dividing plate 143, described second port 145 is positioned at the second side of described axial dividing plate 143, namely lay respectively at the two ends of respective annular subchannel, described first port 147 is communicated with described third connectivity mouth 146.
Described motor water annulus structure also comprises connecting partition 148, and described connecting partition 148 is separated out a connection channel in described second annular in passage, and described first port 147 is communicated with by described interface channel with described third connectivity mouth 146.If annular surface launched, a spiral channel shape can being regarded as, to reaching maximum current area, and ensureing that water inlet is positioned at centre position.
In addition, in order to reach better water flow effects, please refer to Fig. 2, being provided with gap between the end of described radiating ribs 144 and described axial dividing plate 143, namely both are not connected.Please refer to Fig. 1, in optional embodiment of the present invention, the shape and structure of described overcoat 11 mates with the currency structure of described water flowing passage.
Please refer to Fig. 3, present invention also offers a kind of electric system, at least comprise iron core 3, also comprise motor water annulus structure 1 provided by the invention, described motor water annulus structure 1 is located on outside described iron core 3.
Relevant casting method, traditional electric machine structure many employings structure inner sleeve and structure overcoat are cast respectively, then the casting technique welded together, and the present invention can adopt above-mentioned casting technique equally.The novel structure water jacket of the present invention adopts original foundry engieering, and in the groove of structure inner sleeve, cast radiating ribs, the intensity not only increasing structure further increases the contact area of structure and water, enhances heat-sinking capability.Traditional loop configuration takes entrance and exit to be distributed in the method at motor two ends, design entry of the present invention is at the middle part of motor, by radial dividing plate, current are separated, current guide to current through lateral partitions one end of motor after one week around motor, through a longer axial dividing plate, water is guided to the other end of motor to outlet around motor after one week again, form a circulation.This design has been broken away from outlet and entrance and must to have been distributed the puzzlement apart from each other of motor two ends, and the part that cooling motor temperature is the highest timely simultaneously, reduces electric machine temperature rise rapidly, ensures the normal operation of motor.
The theory that the present invention mainly relies on is thermal conduction study, according to Newtonian Cooling theorem, Nu Saier characteristic, the basic theories such as Prandtl, the cooling effectiveness of motor mainly with cooling fluid, cool flow velocity, cooling structure and structure and fluid contact area relevant.The flow direction of existing water annulus cooling fluid mostly is axial distribution, and the outlet of cooling fluid and entrance are distributed in the two ends of motor, causes electric machine temperature rise to occur obvious axial distribution.New Ring-like Type water channel of the present invention, adds radiating ribs in cooling bath, increases the contact area of structure and water, enhance turbulent flow, improve flow velocity, and cooling fluid entrance is located at the middle part energy chilling temperature peak in time of motor, reduces electric machine temperature rise rapidly.
In sum, the present invention at least possesses following positive effect:
The first, add the contact area that radiating ribs increases the turbulent flow performance of fluid, the mean flow rate of fluid and electric machine structure and fluid, improve the heat-sinking capability of motor, reduction electric machine temperature rise;
The second, structure is simple, can adopt original casting method, and radiating ribs increases the intensity of structure, the useful life of extending structure;
3rd, change the defect that traditional endless structure cooling water must be distributed in motor two ends, and cooling water first begins to cool down from the middle part that motor temperature is the highest, improve motor shaft temperature gradient upwards to a certain extent, avoid temperature rise in the middle part of motor too high and cause motor damage, ensureing that motor normally runs.
Claims (9)
1. a motor water annulus structure, the inner sleeve comprising ring-type and the overcoat be sheathed on outside described inner sleeve, described inner sleeve two ends are provided with end plate, thus make described inner sleeve, the water flowing space of closed ring-type is formed between end plate and overcoat, it is characterized in that: outside described inner sleeve, be provided with dividing plate and radiating ribs, described dividing plate in order to be separated out a water flowing passage in described water flowing space, described water flowing passage can flow around the axle center of motor in order to make water wherein, described radiating ribs is positioned at described water flowing passage, described outer putting is provided with an inlet opening and an apopore, the position of described inlet opening is mated with one end of described water flowing passage, the position of described apopore is mated with the other end of described water flowing passage, described water flowing space is communicated with outer with apopore by described inlet opening.
2. motor water annulus structure as claimed in claim 1, it is characterized in that: described dividing plate comprises axial dividing plate and at least two radial dividing plates, the described water flowing compartition of ring-type is open loop by described axial dividing plate;
The described water flowing compartition of open loop is some annular subchannels by least two described radial dividing plates, and described annular subchannel is arranged around electrical axis, is communicated with between annular subchannel by the port on described radial dividing plate; Thus make some described annular subchannels form the described water flowing passage with unique circulation path.
3. motor water annulus structure as claimed in claim 2, is characterized in that: described inlet opening is communicated with the annular subchannel mediated.
4. motor water annulus structure as claimed in claim 3, it is characterized in that: the quantity of described annular subchannel is three, wherein, respectively be the second annular that the first annular that the first end plate and the first radial dividing plate formed formed from passage, the first radial dividing plate and the second radial dividing plate vertically from passage, and the 3rd annular subchannel that the second radial dividing plate and the second end plate are formed;
Described first radial dividing plate is provided with the first port, described second radial dividing plate is provided with the second port and third connectivity mouth, described first port and third connectivity mouth are all positioned at the first side of described axial dividing plate, described second port is positioned at the second side of described axial dividing plate, and described first port is communicated with described third connectivity mouth.
5. motor water annulus structure as claimed in claim 4, it is characterized in that: also comprise connecting partition, described connecting partition is separated out a connection channel in described second annular in passage, and described first port is communicated with by described interface channel with described third connectivity mouth.
6. motor water annulus structure as claimed in claim 2, is characterized in that: be provided with gap between the end of described radiating ribs and described axial dividing plate.
7. motor water annulus structure as claimed in claim 1, is characterized in that: described radiating ribs along described inner sleeve circumferentially.
8. motor water annulus structure as claimed in claim 1, is characterized in that: the shape and structure of described overcoat mates with the currency structure of described water flowing passage.
9. an electric system, at least comprises iron core, it is characterized in that: also comprise one of as any in claim 1 to 8 as described in motor water annulus structure, described motor water annulus structure ring is located at outside described iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510604877.6A CN105099082A (en) | 2015-09-21 | 2015-09-21 | Annular water channel structure of motor and motor system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510604877.6A CN105099082A (en) | 2015-09-21 | 2015-09-21 | Annular water channel structure of motor and motor system |
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| CN105099082A true CN105099082A (en) | 2015-11-25 |
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| CN201510604877.6A Pending CN105099082A (en) | 2015-09-21 | 2015-09-21 | Annular water channel structure of motor and motor system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655631A (en) * | 2016-12-13 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Cooling water jacket structure for hybrid electric vehicle motor |
| CN107764860A (en) * | 2017-12-19 | 2018-03-06 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of laminated core longitudinal direction test device of thermal conductivity coefficient |
| DE102018003761A1 (en) * | 2018-05-09 | 2019-11-14 | Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG | Method for producing a stator carrier and stator carrier |
| WO2021115895A1 (en) * | 2019-12-09 | 2021-06-17 | Valeo Siemens Eautomotive Germany Gmbh | Stator housing for an electrical machine, electrical machine for a vehicle, and vehicle |
| CN114483928A (en) * | 2022-01-27 | 2022-05-13 | 大连华锐重工集团股份有限公司 | Main driving speed reducer of high-speed shield machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106655631A (en) * | 2016-12-13 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Cooling water jacket structure for hybrid electric vehicle motor |
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| CN114483928A (en) * | 2022-01-27 | 2022-05-13 | 大连华锐重工集团股份有限公司 | Main driving speed reducer of high-speed shield machine |
| CN114483928B (en) * | 2022-01-27 | 2023-07-25 | 大连华锐重工集团股份有限公司 | Main drive speed reducer of high-speed shield tunneling machine |
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