CN101192766B - Motor mechanism for DC frequency conversion compressor - Google Patents
Motor mechanism for DC frequency conversion compressor Download PDFInfo
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- CN101192766B CN101192766B CN2006101467721A CN200610146772A CN101192766B CN 101192766 B CN101192766 B CN 101192766B CN 2006101467721 A CN2006101467721 A CN 2006101467721A CN 200610146772 A CN200610146772 A CN 200610146772A CN 101192766 B CN101192766 B CN 101192766B
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Abstract
The invention discloses a motor mechanism of a direct current frequency conversion compressor. A motor stator is fixed in the compressor. A motor rotor is formed by combining a first rotor layer, a second rotor layer and a third rotor layer stacked by rotor elements. The center of each rotor element is provided with a peg-hole and each one quarter region on the surface of each rotor element is provided with at least one magnet groove which can hold a permanent magnet. One region of the rotor element in the first rotor layer is provided with a plurality of first slot bores and the rotor elementin the third rotor layer is provided with a plurality of third slot bores. The third slot bores are arranged on the region facing to the first slot bores. The invention can effectively lower the height of the compressor, reduce the cost of parts and components as well as the manufacture cost, and increase the benefit of the motor and the compressor as a whole.
Description
Technical field
The present invention particularly about a kind of height that can effectively reduce compressor, reduces spare part and manufacturing cost about a kind of motor mechanism, and the motor mechanism of the DC frequency-changeable compressor of the overall efficiency of enhancement motor and compressor.
Background technology
The DC frequency-changing reciprocating compressor of general refrigerating and air conditioning, see also Fig. 1, the low-pressure low-temperature cold media gas is entered by the refrigerant suction inlet 2 on the shell 1 earlier, enter the suction passage that admission space chamber 3 arrives valve block seat 4 more then, enter cylinder 5 inside via suction passage at last, carry out the compression process of piston 6.Refrigerant is through becoming the high pressure-temperature refrigerant after the compression of compressor piston 6, sees through conduit 7 and enters the high pressure-temperature refrigerant chamber volume 8 that spues, and last high pressure-temperature refrigerant is discharged outside the compressors from coolant outlet port 9.
Yet motor stator 13 is to be fixed in the compressor, and the motor rotor 10 in the compressor is to use the design of eccentric shaft to come driven plunger 6 parts such as grade to carry out the compression process of refrigerant.Because the design of motor rotor 10 eccentric shafts must be provided with corresponding counterweight design on motor rotor 10, make motor rotor 10 can reach the rotor dynamic balance when rotating, to reduce the vibration and the noise of motor rotor 10.The corresponding counterweight of configuration on motor rotor 10, its way is that an appropriate balance balancing weight is set respectively on the upper/lower terminal face of motor rotor 10, makes motor can reach the rotor dynamic balance when rotating, shown in Fig. 2 and Fig. 3 A～3D.
See also Fig. 4, the schematic diagram of making a concerted effort for each element of motor mechanism of existing DC frequency-changeable compressor, F1 among the figure is the total synthetic centrifugal force and the equivalent action power of piston 6, connecting rod and eccentric shaft, F2 is the centrifugal force of equilibrate counterweight 11 on the rotor, and F3 is the centrifugal force of equilibrate counterweight 12 under the rotor.Can reach the rotor dynamic balance in order to make in the compressor, reach resultant moment and must equal zero to reach the rotor dynamic balance making a concerted effort among above-mentioned Fig. 4.Because of equalling zero with joint efforts, so F2=F1+F3.Again because of resultant moment must equal zero, so F2xL2=F1x (L1+L2).Above-mentioned F2=F1+F3, thus F2＞F3, H1＞H2 just, the height H 1 of last equilibrate counterweight 11 therefore down the height of equilibrate counterweight 12 be height.
Above-mentioned way but exists two problems, and the configuration of first balancing weight will increase the height of compressor, so compressor need occupy bigger space to hold each relevant spare part, can't be designed to short and small frivolous to increase competitiveness; It two is upper and lower two equilibrate counterweights and in the fixture of motor rotor both ends of the surface, and is not only complicated and need extra part processing and production cost on the structure.
Summary of the invention
Main purpose of the present invention is to be to provide a kind of can effectively reduce the height of compressor and reduce spare part and manufacturing cost, makes compressor become shorter and smaller frivolous, can promote simultaneously the motor mechanism of DC frequency-changeable compressor of the benefit of motor again.
In order to achieve the above object, the motor mechanism of DC frequency-changeable compressor of the present invention, comprise a first rotor layer, be to form by most the first rotor element stack, the zone of this first rotor cell surface per quart central angle is provided with at least one magnet groove that can ccontaining permanent magnet, and the zone at the described quadrant heart angle of one of them is provided with most first slotted eyes in this first rotor unit; One second rotor layer, be to pile up by most second rotor units to form, the zone of this second rotor unit surface per quart central angle is provided with this magnet groove, the corresponding setting of magnet groove on the lip-deep magnet groove of this second rotor unit and the first rotor cell surface; One third trochanter layer, be to form by most third trochanter element stack, the zone of this third trochanter cell surface per quart central angle is provided with this magnet groove, magnet groove on this third trochanter cell surface and the corresponding setting of the lip-deep magnet groove of first, second rotor unit, and this third trochanter unit is provided with most the 3rd slotted eyes, the 3rd slotted eye be arranged at this first slot aperture on the zone at relative described quadrant heart angle, wherein this second rotor layer be located at this first, the third trochanter interlayer; An and axis hole, be located at the circle centre position of this first, second, third rotor unit, wherein by adjusting aforementioned the first rotor unit, second rotor unit and third trochanter unit quantity separately, and then the corresponding height of adjusting aforementioned the first rotor layer, second rotor layer and third trochanter layer, to reach the rotor dynamic balance.
Comprehensively above-mentioned, the present invention is significant with respect to the effect of prior art, have following beneficial effect: the motor mechanism of DC frequency-changeable compressor of the present invention utilizes first, second, third rotor layer to replace existing motor configuration with upper and lower equilibrate counterweight, see through the motor configuration that first, second, third rotor layer of differing heights combines, reach the rotor dynamic balance of each element in the compressor, the height of compressor be can reduce, spare part and manufacturing cost reduced.
Description of drawings
Fig. 1 is the assembly drawing of existing DC frequency-changing reciprocating compressor.
Fig. 2 is the end view of the motor mechanism of existing DC frequency-changeable compressor.
Fig. 3 A, 3B, 3C, 3D are the front view and the end view of equilibrate counterweight.
The schematic diagram that Fig. 4 makes a concerted effort for each element of motor mechanism of existing DC frequency-changeable compressor.
Fig. 5 A, 5B, 5C are respectively the front view of first, second, third rotor of motor mechanism first embodiment of DC frequency-changeable compressor of the present invention.
Fig. 6 is the end view of motor mechanism first embodiment of DC frequency-changeable compressor of the present invention.
The schematic diagram that Fig. 7 makes a concerted effort for each element of motor mechanism of DC frequency-changeable compressor of the present invention.
Fig. 8 is the front view of motor mechanism second embodiment of DC frequency-changeable compressor of the present invention.
Fig. 9 is the end view of motor mechanism second embodiment of DC frequency-changeable compressor of the present invention.
The main element symbol description
1 shell
2 refrigerant suction inlets
4 valve block seats
5 cylinders
6 pistons
7 conduits
The 8 high pressure-temperatures refrigerant chamber volume that spues
9 coolant outlet port
10 motor rotors
Equilibrate counterweight on 11
12 times equilibrate counterweights
13 motor stators
20 the first rotor layers
21 the first rotor unit
22 first slotted eyes
30 second rotor layers
31 second rotor units
40 third trochanter layers
41 third trochanter unit
42 the 3rd slotted eyes
50 magnet grooves
60 axis holes
70 fourth trochanter unit
Embodiment
For reaching above-mentioned purpose and effect, the technology used in the present invention means and structure, existing conjunction with figs. just preferred embodiment of the present invention illustrates that in detail its feature and function are as follows, are beneficial to understand fully.
In order to address the above problem, the invention provides a kind of motor mechanism of DC frequency-changeable compressor, at first please consult Fig. 5 A simultaneously, 5B, 5C and Fig. 6, be respectively DC frequency-changeable compressor of the present invention motor mechanism first embodiment first, second, the end view of the front view of third trochanter unit and the motor mechanism of DC frequency-changeable compressor of the present invention first embodiment, the motor mechanism of DC frequency-changeable compressor of the present invention, comprise a first rotor layer 20, one second rotor layer 30, an one third trochanter layer 40 and an axis hole 60, this the first rotor layer 20 is to be piled up by most the first rotor unit 21 to form, the zone of these the first rotor unit 21 surperficial per quarts is provided with at least one magnet groove 50 that can ccontaining permanent magnet, the quantity of this magnet groove 50 and shape viewable design demand and dispose, shape can be rectangle, polygon etc., one of them zone, this first rotor unit 21 is provided with most first slotted eyes 22; This second rotor layer 30 is to be piled up by most second rotor units 31 to form, and the zone of these second rotor unit, 31 surperficial per quarts is provided with this magnet groove 50; This third trochanter layer 40 is to be piled up by most third trochanter unit 41 to form, the zone of these third trochanter unit 41 surperficial per quarts is provided with this magnet groove 50, this third trochanter unit 41 is provided with most the 3rd slotted eye 42, the three slotted eyes 42 and is arranged on the zone relative with this first slotted eye 22; This axis hole 60 has all been designed in the center of above-mentioned this first, second, third rotor unit 21,31,41, in order to the installing axle, and should majority the shape and the configuration mode of the first, the 3rd slotted eye also can design according to demand; This second rotor layer 30 be located at this first, 20,40 on third trochanter layer, this first, second, third rotor unit 21,31,41 is a silicon steel sheet.
Because the design of compressor inner motor rotor 10 eccentric shafts so need corresponding counterweight design, could allow motor rotor 10 can reach the rotor dynamic balance when rotating, to reduce the vibration and the noise of motor rotor 10.See also shown in Figure 7, the schematic diagram of making a concerted effort for each element of motor mechanism of DC frequency-changeable compressor of the present invention, F4 among the figure is the total synthetic centrifugal force and the equivalent action power of piston 6, connecting rod and eccentric shaft, F5 is the centrifugal force of the first rotor layer 20, and F6 is the centrifugal force of third trochanter layer 40, in order to reach the rotor dynamic balance, therefore the height H 3 of this first rotor layer 20 is high than the height H 4 of this third trochanter layer 40, so just can make above-mentioned making a concerted effort reach resultant moment and equal zero to reach the rotor dynamic balance.Therefore, the present invention utilizes this first, second, third rotor layer 20,30,40 to replace existing motor rotor 10 structures of upper and lower equilibrate counterweight 11,12 that have, just see through motor rotor 10 structures that first, second, third rotor layer 20,30,40 of differing heights (most rotor units pile up and form) combines, just can reach the rotor dynamic balance of each element in the compressor, more can reduce simultaneously the height of compressor, reduce spare part and manufacturing cost.
Reach the rotor dynamic balance in order to obtain these first, second, third rotor layer, 20,30,40 suitable height, can utilize some analysis software (for example Pro-e) to simulate and calculate height, also promptly try to achieve the quantity of this first, second, third rotor unit 21,31,41 in the hope of this first, second, third rotor layer 20,30,40.At first utilize analysis software that inner each part of compressor is done the simulation of 3D entity, design the shape and the configuration mode of this first, the 3rd slotted eye 22,42 then on demand, design parameter with this first, the 3rd slotted eye 22,42, as length, width, material, weight etc., import in the analysis software and carry out sunykatuib analysis, need satisfy its analysis result making a concerted effort of each element and resultant moment equal zero reaching the rotor dynamic balance, can not increase or reduce this first, second, third rotor layer 20,30,40 and highly reach the rotor dynamic balance if reach the rotor dynamic balance.
Please consult shown in Fig. 8,9 simultaneously, be respectively front view and the end view of motor mechanism second embodiment of DC frequency-changeable compressor of the present invention, the motor mechanism of DC frequency-changeable compressor of the present invention, comprise most fourth trochanter unit 70, the zone of these fourth trochanter unit 70 surperficial per quarts is provided with at least one magnet groove 50 that can ccontaining permanent magnet, and be respectively equipped with most first slotted eyes 22 and most the 3rd slotted eyes 42 on 70 two relative zones, this fourth trochanter unit, this fourth trochanter unit 70 is a silicon steel sheet; One the first rotor layer 20 is to be piled up by this majority fourth trochanter unit 70 to form, and should fill non-magnet_conductible material in majority first slotted eye 22; One second rotor layer 30 is to be piled up by this majority fourth trochanter unit 70 to form; One third trochanter layer 40, be to pile up by this majority fourth trochanter unit 70 to form, and should fill non-magnet_conductible material in majority the 3rd slotted eye 42, and this non-magnet_conductible material is a metal, copper for example, wherein this second rotor layer 30 be located at this first, 20,40 on third trochanter layer; Reach an axis hole 60, be located at the center of this fourth trochanter unit 70.Second embodiment of Ben Mingfa is similar to first embodiment, the height of this first, second, third rotor layer 20,30,40 of present embodiment also is to see through analysis software to calculate, height in the hope of this first, second, third rotor layer 20,30,40 reaches the rotor dynamic balance, in order to replace existing motor configuration with upper and lower equilibrate counterweight 11,12.
Claims (5)
1. the motor mechanism of a DC frequency-changeable compressor is characterized in that, comprising:
One the first rotor layer, be to form by most the first rotor element stack, the zone of this first rotor cell surface per quart central angle is provided with at least one magnet groove that can ccontaining permanent magnet, and the zone at the described quadrant heart angle of one of them is provided with most first slotted eyes in this first rotor unit;
One second rotor layer, be to pile up by most second rotor units to form, the zone of this second rotor unit surface per quart central angle is provided with this magnet groove, the corresponding setting of magnet groove on the lip-deep magnet groove of this second rotor unit and the first rotor cell surface;
One third trochanter layer, be to form by most third trochanter element stack, the zone of this third trochanter cell surface per quart central angle is provided with this magnet groove, magnet groove on this third trochanter cell surface and the corresponding setting of the lip-deep magnet groove of first, second rotor unit, and this third trochanter unit is provided with most the 3rd slotted eyes, the 3rd slotted eye be arranged at this first slot aperture on the zone at relative described quadrant heart angle, wherein this second rotor layer be located at this first, the third trochanter interlayer; And
One axis hole, be located at the circle centre position of this first, second, third rotor unit, wherein by adjusting aforementioned the first rotor unit, second rotor unit and third trochanter unit quantity separately, and then the corresponding height of adjusting aforementioned the first rotor layer, second rotor layer and third trochanter layer, to reach the rotor dynamic balance.
2. the motor mechanism of DC frequency-changeable compressor as claimed in claim 1 is characterized in that, this first rotor unit is a silicon steel sheet.
3. the motor mechanism of DC frequency-changeable compressor as claimed in claim 1 is characterized in that, this second rotor unit is a silicon steel sheet.
4. the motor mechanism of DC frequency-changeable compressor as claimed in claim 1 is characterized in that, this third trochanter unit is a silicon steel sheet.
5. the motor mechanism of DC frequency-changeable compressor as claimed in claim 1 is characterized in that, the height of this first rotor layer is than this third trochanter floor height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101467721A CN101192766B (en) | 2006-11-22 | 2006-11-22 | Motor mechanism for DC frequency conversion compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101467721A CN101192766B (en) | 2006-11-22 | 2006-11-22 | Motor mechanism for DC frequency conversion compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101192766A CN101192766A (en) | 2008-06-04 |
| CN101192766B true CN101192766B (en) | 2010-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101467721A Active CN101192766B (en) | 2006-11-22 | 2006-11-22 | Motor mechanism for DC frequency conversion compressor |
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| Country | Link |
|---|---|
| CN (1) | CN101192766B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795162B (en) * | 2012-10-30 | 2015-11-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and there are two roller compressor of this motor |
| WO2014079015A1 (en) * | 2012-11-22 | 2014-05-30 | Emerson Electric Co. | Electric machines, stators and compressors and methods of manufacturing same |
| JP6823096B2 (en) * | 2019-02-27 | 2021-01-27 | シナノケンシ株式会社 | Inner rotor type motor rotor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3584980A (en) * | 1969-01-31 | 1971-06-15 | Lennox Ind Inc | Two-speed compressor |
| US3965382A (en) * | 1974-10-03 | 1976-06-22 | General Electric Company | Rotor having balance weights |
| US4388756A (en) * | 1978-10-25 | 1983-06-21 | General Electric Company | Methods of making improved rotor assembly |
| US4644201A (en) * | 1984-07-13 | 1987-02-17 | Hitachi, Ltd. | Armature for direct current motor with imbalance correction |
| US5635778A (en) * | 1993-12-24 | 1997-06-03 | Nippondenso Co., Ltd. | Motor for electric pumps |
-
2006
- 2006-11-22 CN CN2006101467721A patent/CN101192766B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3584980A (en) * | 1969-01-31 | 1971-06-15 | Lennox Ind Inc | Two-speed compressor |
| US3965382A (en) * | 1974-10-03 | 1976-06-22 | General Electric Company | Rotor having balance weights |
| US4388756A (en) * | 1978-10-25 | 1983-06-21 | General Electric Company | Methods of making improved rotor assembly |
| US4644201A (en) * | 1984-07-13 | 1987-02-17 | Hitachi, Ltd. | Armature for direct current motor with imbalance correction |
| US5635778A (en) * | 1993-12-24 | 1997-06-03 | Nippondenso Co., Ltd. | Motor for electric pumps |
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| Publication number | Publication date |
|---|---|
| CN101192766A (en) | 2008-06-04 |
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