CN108521189A - A kind of water cooling motor housing and preparation method thereof - Google Patents
A kind of water cooling motor housing and preparation method thereof Download PDFInfo
- Publication number
- CN108521189A CN108521189A CN201810591894.4A CN201810591894A CN108521189A CN 108521189 A CN108521189 A CN 108521189A CN 201810591894 A CN201810591894 A CN 201810591894A CN 108521189 A CN108521189 A CN 108521189A
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- CN
- China
- Prior art keywords
- water
- cooling motor
- motor housing
- channel
- water cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- 238000005266 casting Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 11
- 239000011819 refractory material Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000006104 solid solution Substances 0.000 claims description 5
- 239000011796 hollow space material Substances 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- -1 aluminium Gold Chemical compound 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Include shell the invention discloses a kind of water cooling motor housing, the shell is cylindrical, and casing center setting accommodates the hollow space of movement, it is characterized in that, it is then provided with spiral channel in the enclosure interior, and entrance structure and export structure of the setting for spiral channel on housing exterior walls, water channel is consistent with the tangential direction of shell corresponding position in the wherein described entrance structure and export structure, and water channel direction and water channel direction in export structure are inconsistent in entrance structure, and optimize preparation method to improve the yield rate of final products.
Description
Technical field
The present invention relates to motor fields, and in particular to a kind of water cooling motor housing and preparation method thereof.
Background technology
With the promotion and application of new-energy automobile, electric vehicle and oil-electric vehicle have obtained adequately
It develops and utilizes, the two something in common is inevitably to use drive motor, to maintain vehicle driving dynamics.Driving electricity
Motivation need to generally have higher-wattage, be particularly applied to relatively large commercial car, such as bus, car.But motor exists
Due to heating effect of current and mechanical power loss etc. when operating, keep the calorific value of motor big, limits the promotion of electric efficiency.By
Higher in protection level requirements, the heat generated inside motor is difficult directly to export, and is generally changed using casing water-cooling pattern
Heat.For aluminium alloy since density is low, thermal coefficient height is often selected as case material.Existing aluminium alloy casing is mostly aluminium section bar and leads to
It crosses welding and forms water channel, this kind of technique can be only formed along the water route that motor axial direction S types are arranged, and welding cost is high, welding quality
It is not easy to control.S types water route causes pump power and lift demand high, can also make entire waterway circulating since elbow water resistance is big
Pipeline bears more pressure, and safety coefficient is low.Solution is always sought in the industry in the casting of aluminium alloy matter casing spiral channel
Problem, since spiral channel is complicated, the sand core in water channel cannot be removed clean, obstruction water channel shadow by common knockout technique
Ring heat dissipation effect.
And Chinese patent CN201410438179.9 discloses a kind of water-cooling motor cabinet casting method, casing is closed using cast aluminium
Gold has casing and pedestal, and the water channel with the integrally formed ribbon spiral arrangement of casing, ribbon spiral are disposed on the casing
Water channel makes water channel sand cores be completely exhausted out with casing integrally casting shaping by using special casting and knockout technique, in water channel
Noresidue sand, while spirality channel end is provided with inlet and outlet, the water channel sectional area is more than water inlet section
Product.And Curve guide impeller has been carried out to traditional spirality channel, increase water channel turning.I.e. above-mentioned patent refers to that casting method is existing
Stage more commonly used low-pressure casting process, it is clean convenient for removing sand core in knockout technique mainly to improve water channel.On but
Stating casting method not ensures 5min No leakages under the mechanical performance of water cooling motor housing-closed type pressurize 0.5MPa.Increase simultaneously
If water channel turning can increase sand core manufacture difficulty, cause water channel inner wall burr relatively more.
Invention content
The purpose of the present invention is to provide the water cooling motor housings of reasonable design, by optimizing each process in casting process,
To improve the yields of casting.
To achieve the above object, the present invention provides the following technical solutions：
A kind of water cooling motor housing includes shell, and the shell is cylindrical, and casing center setting accommodates the hollow space of movement,
It is characterized in that, being then provided with spiral channel, and setting the entering for spiral channel on housing exterior walls in the enclosure interior
Mouth structure and export structure, wherein tangential direction of the water channel with shell corresponding position in the entrance structure and export structure
Unanimously, and in entrance structure water channel direction and water channel direction in export structure are inconsistent.
Water cooling motor housing according to an embodiment of the invention can be further arranged to internal diameter and the institute of the spiral channel
The ratio between the wall thickness for stating shell is（0.55-0.78）：1.
The helical angle of the spiral channel can be further arranged to according to the water cooling motor housing of another embodiment of the invention
In 5-12 degree.
It can be further arranged to side on the housing and lower section according to the water cooling motor housing of another embodiment of the invention
It is also respectively provided with the chamfering convenient for other component assembly.
According to the preparation method that another object of the present invention is the water cooling motor housing, include the following steps;
S1, sand core is prepared, according to the structure design spiral channel sand core of spiral channel in water cooling motor housing, and it is resistance in its outer coating
Fiery material；
S2, fixed water channel sand cores, apply refractory material by the core of water-cooling motor cabinet mold, then will be coated with refractory material water channel
Core is fixed in mold；
S3, molten aluminum is poured, the molten aluminum of melting is poured tool by low pressure carries out low-pressure casting acquisition water-cooled machine into mold
Casing casting blank；
S4, solid solution blank, fixation rates are carried out to water-cooling motor cabinet casting blank；
S5, by the motor casing cast by being taken out in the cavity of mold, until after completely cooling, pass through and burn sand, sand is shaken in heat treatment
Remove water channel sand cores；
S6, to being cleared up on the outside of water-cooling motor cabinet, precision machinery process and examine obtain integral type water-cooling motor cabinet at
Product.
It can be further arranged in S3 steps according to the preparation method of the water cooling motor housing of another embodiment of the invention
The temperature of molten aluminum is controlled at 700-750 DEG C, and mold filling pressure when aluminum liquid filling type controls the increasing in 0.32-0.38MPa, pressurize
Pressure pressure is controlled in 0.42-0.46MPa.
It can be further arranged in S3 steps according to the preparation method of the water cooling motor housing of another embodiment of the invention
The temperature of molten aluminum is controlled at 735 DEG C, and mold filling pressure when aluminum liquid filling type controls the boost pressure control in 0.35MPa, pressurize
System is in 0.45MPa.
It can be further arranged in S3 steps according to the preparation method of the water cooling motor housing of another embodiment of the invention
The time control of pressurize is in 250-300s, and cooling time control is in 60-100s in S4 steps.
It can be further arranged in S3 steps according to the preparation method of the water cooling motor housing of another embodiment of the invention
The time control of pressurize is in 285s, and cooling time control is in 90s in S4 steps.
Compared with prior art, beneficial effects of the present invention are as follows：
1, water cooling motor housing provided by the invention in structure by having adjusted structure, the spiral channel entrance structure of spiral channel
With export structure so that the flow resistance of cooling water reduces in spiral channel, the water cooling efficiency of motor casing is improved；
2, the wall thickness of the spiral angle of its bolt water channel of water cooling motor housing provided by the invention, bolt water channel internal diameter and motor casing comes
Enhance tensile strength, the Brinell hardness of water cooling motor housing, it is ensured that its pressurize 5min No leakage at 0.75MPa；
3, the pressure of the temperature of molten aluminum, the pressure of pressurising and supercharging is optimized in the preparation method of water cooling motor housing provided by the invention
Power, and control time improves the yield rate of product.
Description of the drawings
Fig. 1 is the schematic diagram of water cooling motor housing provided by the invention；
Fig. 2 is the vertical view of water cooling motor housing provided by the invention；
Fig. 3 is the sectional view of Section A-A in Fig. 2；
Fig. 4 is the sectional view of section B-B in Fig. 2.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The water cooling motor housing includes shell 1, and the shell is cylindrical, and absolutely empty in casing center setting receiving movement
Between 2, which is characterized in that be then provided with spiral channel 3 in the enclosure interior, and setting is used for spiral channel on housing exterior walls
3 entrance structure 4 and export structure 5, wherein in the entrance structure 4 and export structure 5 water channel with shell corresponding position
Tangential direction it is consistent, and water channel direction and water channel direction in export structure are inconsistent in entrance structure.And in the shell
It is also respectively provided with the chamfering 6 convenient for other component assembly over and under.
Embodiment 1
The ratio between the internal diameter of the spiral channel and the wall thickness of the shell are 0.55：1, the helical angle of the spiral channel is at 5 degree.
The preparation method of water cooling motor housing, includes the following steps in embodiment 1;
S1, sand core is prepared, according to the structure design spiral channel sand core of spiral channel in water cooling motor housing, and it is resistance in its outer coating
Fiery material；
S2, fixed water channel sand cores, apply refractory material by the core of water-cooling motor cabinet mold, then will be coated with refractory material water channel
Core is fixed in mold；
S3, molten aluminum is poured, the molten aluminum of melting is poured tool by low pressure carries out low-pressure casting acquisition water-cooled machine into mold
Casing casting blank, the wherein temperature of molten aluminum are controlled at 700 DEG C, and mold filling pressure control when aluminum liquid filling type is protected in 0.32MPa
Pressure control when pressure is in 0.42MPa, and the time control of pressurize is in 250s；
S4, solid solution blank, fixation rates are carried out to water-cooling motor cabinet casting blank, wherein cooling time control exists
75s；
S5, by the motor casing cast by being taken out in the cavity of mold, until after completely cooling, pass through and burn sand, sand is shaken in heat treatment
Remove water channel sand cores；
S6, to being cleared up on the outside of water-cooling motor cabinet, precision machinery process and examine obtain integral type water-cooling motor cabinet at
Product.
Embodiment 2
The ratio between the internal diameter of the spiral channel and the wall thickness of the shell are 0.68：1, the helical angle of the spiral channel is at 7 degree.
The preparation method of water cooling motor housing, includes the following steps in embodiment 2;
S1, sand core is prepared, according to the structure design spiral channel sand core of spiral channel in water cooling motor housing, and it is resistance in its outer coating
Fiery material；
S2, fixed water channel sand cores, apply refractory material by the core of water-cooling motor cabinet mold, then will be coated with refractory material water channel
Core is fixed in mold；
S3, molten aluminum is poured, the molten aluminum of melting is poured tool by low pressure carries out low-pressure casting acquisition water-cooled machine into mold
Casing casting blank, the wherein temperature of molten aluminum are controlled at 735 DEG C, and mold filling pressure control when aluminum liquid filling type is protected in 0.35MPa
Pressure control when pressure is in 0.45MPa, and the time control of pressurize is in 285s；
S4, solid solution blank, fixation rates are carried out to water-cooling motor cabinet casting blank, wherein cooling time control exists
90s；
S5, by the motor casing cast by being taken out in the cavity of mold, until after completely cooling, pass through and burn sand, sand is shaken in heat treatment
Remove water channel sand cores；
S6, to being cleared up on the outside of water-cooling motor cabinet, precision machinery process and examine obtain integral type water-cooling motor cabinet at
Product.
Embodiment 3
The ratio between the internal diameter of the spiral channel and the wall thickness of the shell are 0.78：1, the helical angle of the spiral channel is 12
Degree.
The preparation method of water cooling motor housing, includes the following steps in embodiment 3;
S1, sand core is prepared, according to the structure design spiral channel sand core of spiral channel in water cooling motor housing, and it is resistance in its outer coating
Fiery material；
S2, fixed water channel sand cores, apply refractory material by the core of water-cooling motor cabinet mold, then will be coated with refractory material water channel
Core is fixed in mold；
S3, molten aluminum is poured, the molten aluminum of melting is poured tool by low pressure carries out low-pressure casting acquisition water-cooled machine into mold
Casing casting blank, the wherein temperature of molten aluminum are controlled at 750 DEG C, and mold filling pressure control when aluminum liquid filling type is protected in 0.38MPa
Pressure control when pressure is in 0.46MPa, and the time control of pressurize is in 300s；
S4, solid solution blank, fixation rates are carried out to water-cooling motor cabinet casting blank, wherein cooling time control exists
100s；
S5, by the motor casing cast by being taken out in the cavity of mold, until after completely cooling, pass through and burn sand, sand is shaken in heat treatment
Remove water channel sand cores；
S6, to being cleared up on the outside of water-cooling motor cabinet, precision machinery process and examine obtain integral type water-cooling motor cabinet at
Product.
It is detected for the water cooling casing prepared in above-mentioned 1-3 embodiments and obtains following result.
| Tensile strength | Brinell hardness | Inner cavity roughness | Leakproofness | |
| Embodiment 1 | ＞ 300MPa | 93 | 1.72±0.05um | 5min No leakages under pressurize 0.75MPa |
| Embodiment 2 | ＞ 300MPa | 99 | 1.67±0.05um | 5min No leakages under pressurize 0.75MPa |
| Embodiment 3 | ＞ 300MPa | 94 | 1.75±0.05um | 5min No leakages under pressurize 0.75MPa |
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of water cooling motor housing includes shell, the shell is cylindrical, and absolutely empty in casing center setting receiving movement
Between, which is characterized in that it is then provided with spiral channel in the enclosure interior, and setting is used for spiral channel on housing exterior walls
Entrance structure and export structure, wherein tangent line side of the water channel with shell corresponding position in the entrance structure and export structure
To consistent, and water channel direction and water channel direction in export structure are inconsistent in entrance structure.
2. a kind of water cooling motor housing according to claim 1, which is characterized in that the internal diameter of the spiral channel and the shell
The ratio between wall thickness of body is（0.55-0.78）：1.
3. a kind of water cooling motor housing according to claim 2, which is characterized in that the helical angle of the spiral channel is in 5-12
Degree.
4. a kind of water cooling motor housing according to claim 3, which is characterized in that side and lower section are also distinguished on the housing
It is provided with the chamfering convenient for other component assembly.
5. a kind of preparation method of water cooling motor housing according to any one of claims 1 to 4, which is characterized in that including
Following steps;
S1, sand core is prepared, according to the structure design spiral channel sand core of spiral channel in water cooling motor housing, and it is resistance in its outer coating
Fiery material；
S2, fixed water channel sand cores, apply refractory material by the core of water-cooling motor cabinet mold, then will be coated with refractory material water channel
Core is fixed in mold；
S3, molten aluminum is poured, the molten aluminum of melting is poured tool by low pressure carries out low-pressure casting acquisition water-cooled machine into mold
Casing casting blank；
S4, solid solution blank, fixation rates are carried out to water-cooling motor cabinet casting blank；
S5, by the motor casing cast by being taken out in the cavity of mold, until after completely cooling, pass through and burn sand, sand is shaken in heat treatment
Remove water channel sand cores；
S6, to being cleared up on the outside of water-cooling motor cabinet, precision machinery process and examine obtain integral type water-cooling motor cabinet at
Product.
6. a kind of preparation method of water cooling motor housing according to claim 5, which is characterized in that the molten aluminum in S3 steps
Temperature is controlled at 700-750 DEG C, and mold filling pressure when aluminum liquid filling type controls the boost pressure in 0.32-0.38MPa, pressurize
Control is in 0.42-0.46MPa.
7. a kind of preparation method of water cooling motor housing according to claim 6, which is characterized in that the molten aluminum in S3 steps
Temperature is controlled at 735 DEG C, and the Pressure control that mold filling pressure when aluminum liquid filling type is controlled in 0.35MPa, pressurize exists
0.45MPa。
8. a kind of preparation method of water cooling motor housing according to claim 5 to 7 any one, which is characterized in that in S3
The time control of pressurize is in 250-300s in step, and cooling time control is in 60-100s in S4 steps.
9. a kind of preparation method of water cooling motor housing according to claim 8, which is characterized in that the pressurize in S3 steps
Time control is in 285s, and cooling time control is in 90s in S4 steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810591894.4A CN108521189A (en) | 2018-06-11 | 2018-06-11 | A kind of water cooling motor housing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810591894.4A CN108521189A (en) | 2018-06-11 | 2018-06-11 | A kind of water cooling motor housing and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108521189A true CN108521189A (en) | 2018-09-11 |
Family
ID=63428241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810591894.4A Pending CN108521189A (en) | 2018-06-11 | 2018-06-11 | A kind of water cooling motor housing and preparation method thereof |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586494A (en) * | 2018-12-27 | 2019-04-05 | 丹阳荣嘉精密机械有限公司 | A kind of motor casing that spiral cooling system is embedding |
| CN112247116A (en) * | 2020-10-23 | 2021-01-22 | 东风汽车有限公司 | Low-pressure casting process of motor casing with cooling water channel |
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| CN201421724Y (en) * | 2008-12-30 | 2010-03-10 | 上海大郡自动化系统工程有限公司 | Helical line water channel radiator |
| CN203086276U (en) * | 2013-01-15 | 2013-07-24 | 上海大郡动力控制技术有限公司 | A water-cooled motor housing used for enhancing cooling effects |
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2018
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| CN201421724Y (en) * | 2008-12-30 | 2010-03-10 | 上海大郡自动化系统工程有限公司 | Helical line water channel radiator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109586494A (en) * | 2018-12-27 | 2019-04-05 | 丹阳荣嘉精密机械有限公司 | A kind of motor casing that spiral cooling system is embedding |
| CN112247116A (en) * | 2020-10-23 | 2021-01-22 | 东风汽车有限公司 | Low-pressure casting process of motor casing with cooling water channel |
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