CN208923977U - A kind of water cooling motor housing - Google Patents
A kind of water cooling motor housing Download PDFInfo
- Publication number
- CN208923977U CN208923977U CN201820891935.7U CN201820891935U CN208923977U CN 208923977 U CN208923977 U CN 208923977U CN 201820891935 U CN201820891935 U CN 201820891935U CN 208923977 U CN208923977 U CN 208923977U
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- Prior art keywords
- water
- cooling motor
- motor housing
- channel
- water cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 abstract description 12
- 239000011796 hollow space material Substances 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 20
- 229910052782 aluminium Inorganic materials 0.000 description 20
- 239000011819 refractory material Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 239000004576 sand Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 230000009182 swimming Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- -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
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 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
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a kind of water cooling motor housings, including shell, the shell is cylindrical, and casing center setting accommodates the hollow space of machine core, it is characterized in that, spiral channel is then provided in the enclosure interior, and setting is used for the entrance structure and export structure of spiral channel on housing exterior walls, wherein water channel is consistent with the tangential direction of shell corresponding position in the 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 technique
With the promotion and application of new-energy automobile, electric car and oil-electric vehicle have been obtained adequately
It develops and utilizes, the two something in common is inevitably using drive motor, to maintain vehicle driving power.Driving electricity
Motivation need to generally have higher-wattage, be particularly applied to relatively large commercial vehicle, 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 aluminum profile and leads to
It crosses welding and forms water channel, this kind of technique can be only formed along the water route of motor axial direction S type arrangement, and welding cost is high, welding quality
It is not easy to control.S type 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 structure is complicated for spiral channel, 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 is completely exhausted out water channel sand cores by using special casting and knockout technique with casing integrally casting shaping, in water channel
Noresidue sand, while spirality channel end is provided with inlet and outlet, the water channel sectional area is greater 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, mainly improvement water channel are clean convenient for removing sand core in knockout technique.On but
Stating casting method not ensures 5min No leakage under the mechanical performance of water cooling motor housing-closed type pressure maintaining 0.5MPa.Increase simultaneously
If water channel turning will increase sand core manufacture difficulty, cause water channel inner wall burr relatively more.
Summary of the invention
The purpose of the present invention is to provide reasonable water cooling motor housing is designed, by optimizing each process in casting process,
To improve the yields of casting.
To achieve the above object, the invention provides the following technical scheme:
A kind of water cooling motor housing includes shell, and the shell is cylindrical, and casing center setting accommodates the hollow of machine core
Space, which is characterized in that be 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 of the water channel with shell corresponding position in the entrance structure and export structure
Direction is consistent, and water channel direction and water channel direction in export structure are inconsistent in entrance structure.
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
Stating the ratio between wall thickness of shell is (0.55-0.78): 1.
The water cooling motor housing of another embodiment can be further arranged to the helical angle of the spiral channel according to the present invention
In 5-12 degree.
The water cooling motor housing of another embodiment can be further arranged to side on the housing and lower section according to the present invention
It is also respectively provided with the chamfering convenient for other component assembly.
Another purpose is the preparation method of the water cooling motor housing according to the present invention, is included the following steps;
S1, sand core is prepared, designs spiral channel sand core according to the structure of spiral channel in water cooling motor housing, and apply outside it
Cover refractory material；
S2, fixed water channel sand cores, apply refractory material for the type 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 into tool by low pressure and carries out low-pressure casting acquisition water cooling into mold
Motor case casting blank；
S4, solid solution blank, carry out fixation rates to water-cooling motor cabinet casting blank；
S5, by the motor casing cast by the intracavitary taking-up of type of mold, until after completely cooling, by burning sand, heat treatment,
Shake sand removes water channel sand cores；
S6, to cleared up on the outside of water-cooling motor cabinet, precision machinery is processed and is examined and is obtained one body swimming cool electric machine machine
Shell finished product.
The preparation method of the water cooling motor housing of another embodiment can be further arranged in the S3 step according to the present 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, pressure maintaining
Pressure pressure is controlled in 0.42-0.46MPa.
The preparation method of the water cooling motor housing of another embodiment can be further arranged in the S3 step according to the present 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, pressure maintaining
System is in 0.45MPa.
The preparation method of the water cooling motor housing of another embodiment can be further arranged in the S3 step according to the present invention
The time control of pressure maintaining is in 250-300s, and the cooling time controls in 60-100s in S4 step.
The preparation method of the water cooling motor housing of another embodiment can be further arranged in the S3 step according to the present invention
The time control of pressure maintaining is in 285s, and the cooling time controls in 90s in S4 step.
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 of spiral channel
Structure and export structure reduce the flow resistance of cooling water in spiral channel, improve the water cooling efficiency of motor casing；
2, the wall 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
Thickness enhances tensile strength, the Brinell hardness of water cooling motor housing, it is ensured that its pressure maintaining 5min No leakage at 0.75MPa；
3, the temperature of molten aluminum, the pressure of pressurising and pressurization are optimized in the preparation method of water cooling motor housing provided by the invention
Pressure, and control the time to improve the yield rate of product.
Detailed description of the invention
Fig. 1 is the schematic diagram of water cooling motor housing provided by the invention；
Fig. 2 is the top view of water cooling motor housing provided by the invention；
Fig. 3 is the cross-sectional view of Section A-A in Fig. 2；
Fig. 4 is the cross-sectional view of section B-B in Fig. 2.
Specific embodiment
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 description, 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 machine core
Between 2, which is characterized in that be then provided with spiral channel 3 in the enclosure interior, and on housing exterior walls setting be used for spiral channel
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
The chamfering 6 that over and under is also respectively provided with convenient for other component assembly.
Embodiment 1
The ratio between wall thickness of the internal diameter of the spiral channel and the shell is 0.55:1, and the helical angle of the spiral channel exists
5 degree.
The preparation method of water cooling motor housing, includes the following steps in embodiment 1;
S1, sand core is prepared, designs spiral channel sand core according to the structure of spiral channel in water cooling motor housing, and apply outside it
Cover refractory material；
S2, fixed water channel sand cores, apply refractory material for the type 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 into tool by low pressure and carries out low-pressure casting acquisition water cooling into mold
Motor case casting blank, wherein the temperature of molten aluminum is controlled at 700 DEG C, and mold filling pressure control when aluminum liquid filling type exists
0.32MPa, in 0.42MPa, the time of pressure maintaining controls in 250s Pressure control when pressure maintaining；
S4, solid solution blank, carry out fixation rates to water-cooling motor cabinet casting blank, wherein cooling time control
In 75s；
S5, by the motor casing cast by the intracavitary taking-up of type of mold, until after completely cooling, by burning sand, heat treatment,
Shake sand removes water channel sand cores；
S6, to cleared up on the outside of water-cooling motor cabinet, precision machinery is processed and is examined and is obtained one body swimming cool electric machine machine
Shell finished product.
Embodiment 2
The ratio between wall thickness of the internal diameter of the spiral channel and the shell is 0.68:1, and the helical angle of the spiral channel exists
7 degree.
The preparation method of water cooling motor housing, includes the following steps in embodiment 2;
S1, sand core is prepared, designs spiral channel sand core according to the structure of spiral channel in water cooling motor housing, and apply outside it
Cover refractory material；
S2, fixed water channel sand cores, apply refractory material for the type 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 into tool by low pressure and carries out low-pressure casting acquisition water cooling into mold
Motor case casting blank, wherein the temperature of molten aluminum is controlled at 735 DEG C, and mold filling pressure control when aluminum liquid filling type exists
0.35MPa, in 0.45MPa, the time of pressure maintaining controls in 285s Pressure control when pressure maintaining；
S4, solid solution blank, carry out fixation rates to water-cooling motor cabinet casting blank, wherein cooling time control
In 90s；
S5, by the motor casing cast by the intracavitary taking-up of type of mold, until after completely cooling, by burning sand, heat treatment,
Shake sand removes water channel sand cores；
S6, to cleared up on the outside of water-cooling motor cabinet, precision machinery is processed and is examined and is obtained one body swimming cool electric machine machine
Shell finished product.
Embodiment 3
The ratio between wall thickness of the internal diameter of the spiral channel and the shell is 0.78:1, and the helical angle of the spiral channel exists
12 degree.
The preparation method of water cooling motor housing, includes the following steps in embodiment 3;
S1, sand core is prepared, designs spiral channel sand core according to the structure of spiral channel in water cooling motor housing, and apply outside it
Cover refractory material；
S2, fixed water channel sand cores, apply refractory material for the type 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 into tool by low pressure and carries out low-pressure casting acquisition water cooling into mold
Motor case casting blank, wherein the temperature of molten aluminum is controlled at 750 DEG C, and mold filling pressure control when aluminum liquid filling type exists
0.38MPa, in 0.46MPa, the time of pressure maintaining controls in 300s Pressure control when pressure maintaining；
S4, solid solution blank, carry out fixation rates to water-cooling motor cabinet casting blank, wherein cooling time control
In 100s；
S5, by the motor casing cast by the intracavitary taking-up of type of mold, until after completely cooling, by burning sand, heat treatment,
Shake sand removes water channel sand cores；
S6, to cleared up on the outside of water-cooling motor cabinet, precision machinery is processed and is examined and is obtained one body swimming cool electric machine machine
Shell finished product.
Detection, which is carried out, for the water cooling casing prepared in above-mentioned 1-3 embodiment obtains following result.
| Tensile strength | Brinell hardness | Inner cavity roughness | Leakproofness | |
| Embodiment 1 | > 300MPa | 93 | 1.72±0.05um | 5min No leakage under pressure maintaining 0.75MPa |
| Embodiment 2 | > 300MPa | 99 | 1.67±0.05um | 5min No leakage under pressure maintaining 0.75MPa |
| Embodiment 3 | > 300MPa | 94 | 1.75±0.05um | 5min No leakage under pressure maintaining 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
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of water cooling motor housing, including shell, the shell is cylindrical, and absolutely empty in casing center setting receiving machine core
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 parts assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820891935.7U CN208923977U (en) | 2018-06-11 | 2018-06-11 | A kind of water cooling motor housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820891935.7U CN208923977U (en) | 2018-06-11 | 2018-06-11 | A kind of water cooling motor housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208923977U true CN208923977U (en) | 2019-05-31 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820891935.7U Expired - Fee Related CN208923977U (en) | 2018-06-11 | 2018-06-11 | A kind of water cooling motor housing |
Country Status (1)
| Country | Link |
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| CN (1) | CN208923977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521189A (en) * | 2018-06-11 | 2018-09-11 | 浙江乾坤新能源科技有限公司 | A kind of water cooling motor housing and preparation method thereof |
-
2018
- 2018-06-11 CN CN201820891935.7U patent/CN208923977U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521189A (en) * | 2018-06-11 | 2018-09-11 | 浙江乾坤新能源科技有限公司 | A kind of water cooling motor housing and preparation method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190531 Termination date: 20210611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |