CN102255456A - Energy-saving casting copper rotor motor and manufacturing technology thereof - Google Patents
Energy-saving casting copper rotor motor and manufacturing technology thereof Download PDFInfo
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- CN102255456A CN102255456A CN2011102035514A CN201110203551A CN102255456A CN 102255456 A CN102255456 A CN 102255456A CN 2011102035514 A CN2011102035514 A CN 2011102035514A CN 201110203551 A CN201110203551 A CN 201110203551A CN 102255456 A CN102255456 A CN 102255456A
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Abstract
The invention relates to an energy-saving casting copper rotor motor and a manufacturing technology thereof, which belong to the technical field of motor and are improved on the basis of an authorized patent, namely, a casting method of an induction motor brass mouse cage rotor and a casting device (the patent number is ZL200710066135.8). The improved points are as follows: a, a fan blade is eliminated on a casting copper rotor (5); and a short circuiting ring (11) structure is of a concave table structure (10) and a weight reduction way is adopted to regulate dynamic balance due to consideration about correction balance in the process of assembling a motor; and b, a superimposed silicon sheet (9) is not required to be preheated in the manufacturing technology and can be placed in a preheated mold cavity directly for carrying out rotor casting, that is, the preheating process of the superimposed silicon sheet (9) is cancelled. According to the invention, the structure is simple and the production cost is reduced; the insulating layer of the silicon sheet of the motor is not damaged, thus improving the motor efficiency greatly; and the motor efficiency reaches the European IE4 efficiency level.
Description
Technical field:
Patent of the present invention relates to a kind of energy-conservation copper casting rotor motor and preparation technology, belongs to the motor technology field.
Background technology:
Motor is the most widely used in the world power output source equipment, is widely used in the industry such as mechanized equipment, blower fan, water pump, compressor, metallurgy, petrochemical industry, weaving, papermaking, traffic, building, mine, food in each field such as industry, agricultural, national defence, communal facility and household electrical appliance.Show according to interrelated data, the total electricity consumption of the present motor of China has accounted for more than 60% of whole society's total electricity consumption, the same with the main big country of developed country and developing country, the consumption of motor electric energy has all accounted for 60% of total power consumption, total more than 70% of power consumption of industry becomes maximum power consumption terminal equipment.Along with the quick propelling of world's energy-saving and emission-reduction paces, countries in the world are actively promoted and are used the ultra high efficiency motor, and improve constantly motor efficiency level, execute by government policy.
Fine copper has excellent electric conductivity, and its conductivity is higher by 40% than aluminium, adopts copper rotor to replace aluminium matter motor rotor die-casting technology to be considered to improve one of optimal path in the technology of middle-size and small-size squirrel cage motor efficient.Therefore, just there has been the copper bar of use soldering copper rotor to occur, and through the development of decades so far, realized utilizing the technology of compression casting fine copper rotor as far back as five sixties of 20th century.
The applicant is in the production process of being engaged in fine copper motor rotor die-casting and copper casting rotor motor for a long time, excellence conduction, heat conductivility at fine copper rotor foundry method features and fine copper are analyzed, are tested, find that there is following problem in the copper casting rotor motor that die casting is gone out owing to the high density of fine copper and the characteristic of high temperature casting:
1, dynamic balance checking difficulty, the mode that conventional aluminium rotor balancing post increases the weight of can't satisfy the requirement of copper casting rotor dynamic balance checking.
The relative density of fine copper is 8.96g/cm
3, be 3.3 times of aluminium density, on the aluminium rotor electromotor, the amount of unbalance of aluminium rotor is about several grams～tens grams, carries out the dynamic balancing calibration by the mode of shimming on the rotor balancing post.But when adopting the mode dynamic balance checking that balance columns increases the weight of on the fine copper rotor, because the density height of copper, it is very big to add weight, reaches tens gram～several hectograms, and this just makes that balance columns increases the weight of to satisfy the requirement that the smoothing of fine copper rotor is weighed.Simultaneously, answer the use of balance columns not only to make the mould structure complexity, and the fine copper die casting life-span is reduced greatly.
2, the copper casting rotor motor temperature rise is low, does not need the fan blade heat radiation.
Fine copper has excellent heat conductivility, does not have the copper rotor of fan blade with fine copper die casting, and after being assembled into the copper rotor motor, its temperature rise is lower than the aluminium rotor electric machine of the equal-wattage that fan blade is arranged.
3, iron loss and copper loss height, motor efficiency does not reach designing requirement or promotes not obvious.
In the technology of fine copper motor rotor die-casting, reference is granted patent " a kind of pressure casting method of induction motor copper cage rotor and die casting equipment " (patent No. ZL 200710066135.8), the casting quality that obtains, requirement is put into mould during with iron core preheating temperature to 350～500 ℃ and is carried out die casting, before going into water cooling in the moment that high-temperature copper liquid cast enters steel disc to the foundry goods die sinking, iron core is under the state of temperature more than 800 ℃, insulating barrier between its steel disc is impaired, cause the motor iron loss to increase, simultaneously because of high-temperature copper liquid wash away the steel disc slotted eye cause produce between copper and silicon steel sheet bonding, not only cause iron loss to increase, also can make in the motor test and produce electric leakage, the copper casting rotor electric efficiency that die casting is come out does not reach designing requirement or motor efficiency improves little.
For above-mentioned reasons, cause the fine copper rotor electromotor to increase the equipment of preheating iron core on extrusion process, the production operation difficulty is big, has increased production cost, has also caused waste of electric energy.The copper casting rotor of producing is in the motor assembling process, because the dynamic balance checking difficulty causes the assembling process difficulty to strengthen, the copper casting rotor motor that assembles out makes motor copper loss and iron loss increase again because of core insulation is impaired, cause copper casting rotor motor efficient not reach designing requirement or promote not obviously, hindered the marketing of copper casting rotor motor greatly.
Summary of the invention:
The objective of the invention is to overcome the deficiency that existing compression casting fine copper rotor electromotor exists, optimize the rotor structure of motor, thereby a kind of energy-conservation copper casting rotor motor and preparation technology are provided.
The present invention is directed to the existing low characteristics of fine copper rotor electromotor temperature rise, consider the difficult problem of copper casting rotor smoothing weighing apparatus simultaneously, optimal design the end ring structure of copper casting rotor, and optimized the extrusion process of fine copper rotor, a kind of energy-conservation copper casting rotor motor has been produced in design, and its efficient reaches the design level of European standard IE4.
The present invention has obtained the improvement of weighing on patent " a kind of pressure casting method of induction motor copper cage rotor and the die casting equipment ZL 200710066135.8 " basis at us.Energy-conservation copper casting rotor motor of the present invention, it mainly comprises a stator (4), a copper casting rotor (5), bearing (1), end cap (2), shell (6), fan housing (7), fan (8) and terminal box (3) parts, and improvement is: a. copper casting rotor has been cancelled fan blade on (5); Considering the dynamically balanced problem of motor assembling process lieutenant colonel simultaneously, is concave station structure (10) with short-circuited conducting sleeve (11) structural design, adopts the mode of loss of weight to adjust dynamic balancing; B. superimposed silicon steel sheet (9) does not carry out preheating among the preparation technology, directly puts into preheated mould cavity and carries out motor rotor die-casting, has promptly cancelled the preheating procedure of superimposed silicon steel sheet (9).
The invention has the advantages that: simple in structure and reduced production cost, the silicon steel sheet insulating layer of motor is not impaired, has improved the efficient of motor greatly, and the efficient of motor reaches European IE4 level of efficiency.
Description of drawings:
Fig. 1 is the cross-sectional view of energy-efficient copper casting rotor motor.
Fig. 2 is the cross-sectional view of energy-efficient copper casting rotor motor with copper casting rotor.
Embodiment:
Energy-conservation copper casting rotor motor of the present invention is to have obtained the improvement of weighing on patent " a kind of pressure casting method of induction motor copper cage rotor and the die casting equipment ZL 200710066135.8 " basis at us.Energy-conservation copper casting rotor motor of the present invention, it mainly comprises a stator 4, copper casting rotor 5, bearing 1, end cap 2, shell 6, fan housing 7, fan 8 and terminal box 3 parts.Improvement is: cancelled fan blade on the copper casting rotor 5; Considering the dynamically balanced problem of motor assembling process lieutenant colonel simultaneously, is concave station structure 10 with short-circuited conducting sleeve 11 structural designs, adopts the mode of loss of weight to adjust dynamic balancing.Other structure of energy-conservation copper casting rotor motor of the present invention and assembling are fully identical with the conventional motors assembling process.
The preparation technology of energy-conservation copper casting rotor motor of the present invention is to have obtained the improvement of weighing on patent " a kind of pressure casting method of induction motor copper cage rotor and the die casting equipment ZL 200710066135.8 " basis at us.Its improvement is: superimposed silicon steel sheet 9 does not carry out preheating among the preparation technology, directly puts into preheated mould cavity and carries out motor rotor die-casting, has promptly cancelled the preheating procedure of superimposed silicon steel sheet 9.Other step and operating condition are fully identical with ZL 200710066135.8.
Claims (2)
1. an energy-conservation copper casting rotor motor is the improvement on the prior art basis, and its improvement is: copper casting rotor has been cancelled fan blade on (5), and short-circuited conducting sleeve (10) is designed to the concave station structure.
2. the preparation technology of the described energy-conservation copper casting rotor motor of claim 1, it is the improvement on the prior art basis, its improvement is: cancelled the preheating procedure of superimposed silicon steel sheet (9), superimposed silicon steel sheet (9) is directly put into preheated mould cavity and is carried out motor rotor die-casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102035514A CN102255456A (en) | 2011-07-20 | 2011-07-20 | Energy-saving casting copper rotor motor and manufacturing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102035514A CN102255456A (en) | 2011-07-20 | 2011-07-20 | Energy-saving casting copper rotor motor and manufacturing technology thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102255456A true CN102255456A (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102035514A Pending CN102255456A (en) | 2011-07-20 | 2011-07-20 | Energy-saving casting copper rotor motor and manufacturing technology thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880521A (en) * | 2016-05-03 | 2016-08-24 | 宋照峰 | Casting method of copper rotor |
| CN105964971A (en) * | 2016-05-27 | 2016-09-28 | 宋照峰 | Vacuum semi-solid copper rotor die-casting method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01133540A (en) * | 1987-11-18 | 1989-05-25 | Matsushita Electric Ind Co Ltd | Motor |
| US6147423A (en) * | 1999-09-30 | 2000-11-14 | Reliance Electric Technologies, Llc | Electric motor having improved rotor assembly, and method by which the rotor assembly is made |
| JP2007282341A (en) * | 2006-04-04 | 2007-10-25 | Shimadzu Corp | Motor equipped with cooling mechanism |
-
2011
- 2011-07-20 CN CN2011102035514A patent/CN102255456A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01133540A (en) * | 1987-11-18 | 1989-05-25 | Matsushita Electric Ind Co Ltd | Motor |
| US6147423A (en) * | 1999-09-30 | 2000-11-14 | Reliance Electric Technologies, Llc | Electric motor having improved rotor assembly, and method by which the rotor assembly is made |
| JP2007282341A (en) * | 2006-04-04 | 2007-10-25 | Shimadzu Corp | Motor equipped with cooling mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 龚坰: "《电机制造工艺学》", 30 November 1983, 机械工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880521A (en) * | 2016-05-03 | 2016-08-24 | 宋照峰 | Casting method of copper rotor |
| CN105880521B (en) * | 2016-05-03 | 2018-09-14 | 宋照峰 | Copper rotor casting method |
| CN105964971A (en) * | 2016-05-27 | 2016-09-28 | 宋照峰 | Vacuum semi-solid copper rotor die-casting method |
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Application publication date: 20111123 |