CN101588094A

CN101588094A - Stator laminating structure of motor

Info

Publication number: CN101588094A
Application number: CNA2008100531611A
Authority: CN
Inventors: 王猛
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2008-05-19
Filing date: 2008-05-19
Publication date: 2009-11-25
Anticipated expiration: 2028-05-19
Also published as: CN101588094B

Abstract

The invention relates to a stator laminating structure of a motor, comprising slot holes. The slot holes are formed on the inner periphery portion of the stator laminating structure and used for winding coils; four truncating sides are formed on the outer periphery edge; every two truncating sides are symmetrically formed on a stator lamination using the diameter of the stator lamination as the symmetry axis; the diameter of the stator lamination vertical to the four truncating sides divides the periphery of the stator lamination into four equal arc sides, wherein a long flat-bottom groove and a semicircular groove are symmetrically formed on every two adjacent arc sides, and material distinguishing holes are also formed on one of the arc sides. On the whole, the invention saves materials. Compared with the stator lamination in the prior art, the stator lamination in the invention simplifies unnecessary parts, reduces the consumption of steel plates and improves the radiating capability under on the premise of maintaining the original performance of the stator lamination.

Description

Stator laminating structure of motor

Technical field

The present invention relates to a kind of motor stator.Particularly relate to and a kind ofly can also improve the stator laminating structure of motor of radiating efficiency simultaneously keeping under the constant prerequisite of performance the steel plate consumption being reduced to some extent.

Background technology

The rotary compressor structure as shown in Figure 1, it is to be made of following structure: be provided with suction inlet 109a and discharge pipe 118, and the inside that is filled with the shell A of certain gauging is provided with motor section and compression unit.

Motor section includes: stator 103, rotor 102 and rotating shaft 105, and wherein, stator 103 constitutes concentric circles with rotor 102, and the outer peripheral face of the inner peripheral surface of stator 103 and rotor 102 keeps certain clearance; Rotating shaft 105 is pressed into the central part of rotor 102; Below rotating shaft 105, be provided with the compression unit of absorption and compression refrigerant.

Compression unit is made of following structure: the circular cylinder 109 that is fixed on the inner peripheral surface of shell A and connects with suction pipe; Combine closely in cylinder 109 upper/lower terminal faces, be through with the upper bearing 110 and the lower bearing 111 of rotating shaft 105; With rotating shaft 105 is the center, and that carries out in cylinder 109 simultaneously that off-centre rotatablely moves rolls ring 107, and is formed with the compression stroke 108 that forms compression refrigerant gas when rolling ring 107 rotations with upper bearing 110, lower bearing 111.

After as above the rotary compressor that constitutes connected power supply, the rotor 102 of motor section 104 drove the rotating shaft 105 that is pressed in rotor 102 and together rotates.Rotation along with rotating shaft 105, the eccentric part 106 that rotating shaft 105 lower ends form and roll ring 107 rotations with eccentric part 106 combines, to enter the cold media gas that compression stroke 108 interior low-temp low-pressure compressing refrigerant gas become HTHP through the suction inlet 109a of cylinder 109, the cold media gas of compressed HTHP is discharged from discharge pipe 118 after motor section by compression unit.

Usually, motor stator is made up of coil and stator core.Coil produces revolving magnetic system by AC power, and stator core is the magnetic that produces magnetic flux according to revolving magnetic system.Stator core is to be formed by the direction accumulation of a plurality of stator punchings along axle, and the slotted eye alignment on its stator punching forms through slot, is wound with coil on the through slot.During machine operation, produce a large amount of heats, directly have influence on the operating efficiency of motor.In order to improve the operating efficiency of motor, consider to be provided with through hole at the periphery of motor stator, when compressor operating, make refrigerant pass through hole, thereby reach the purpose that refrigerant is lowered the temperature to motor radiating simultaneously.

As shown in Figure 2, be formed with the groove hole 1 that is used for winding around in the inner rim portion of the stator punching of the formation stator core of prior art, substantially be circular configuration on the neighboring, be symmetrically formed platform 2 on limit, the left and right sides, and be symmetry axis with the diameter parallel with the truncation limit 2 of both sides, on the neighboring that is positioned at the symmetry axis both sides, be symmetrically formed little oblique wave groove 3, and material distinguish hole 4.The described effect that is formed with little oblique wave groove 3, peace side cut 2 is to be formed with the heat radiation gap after can making stator pack dress up shape in compressor.

Can see that thus many more, the big more radiating effects of the groove that plays thermolysis on the stator punching are just good more.But the groove that plays thermolysis on the stator punching is big more or many more, and the magnetic field degree of saturation of motor is just serious more, and efficiency of motor is also just low more.

So, also just caused little oblique wave groove 3 on the stator punching neighboring of prior art, and material to distinguish hole 4 too little.

Fig. 3 is the plane figure schematic diagram of a plurality of motor stator punchings of prior art; Fig. 4 is the local enlarged diagram of a portion among Fig. 3; Fig. 5 is the local enlarged diagram of the b portion among Fig. 3.

As Fig. 3, Fig. 4, shown in Figure 5, steel plate layout during from the making stator punching can be seen, it is big that the stator punching of prior art takies the steel area, it is little less that edge between two stator punchings contacts more gap, thereby, occurred in the shape lower steel plate consumption of existing stator punching bigger, and the relatively poor deficiency of motor stator heat-sinking capability.

Summary of the invention

Technical problem to be solved by this invention is that providing a kind of can also improve the stator laminating structure of motor of radiating efficiency simultaneously keeping under the constant prerequisite of performance the steel plate consumption being reduced to some extent.

The technical solution adopted in the present invention is: a kind of stator laminating structure of motor, include the groove hole that is used for winding around that is formed in its inner circumference portion, its neighboring along on be formed with four truncation limits, described per two truncation limits are that the diameter with stator punching is that symmetry axis is symmetrically formed on stator punching; By the diameter with the perpendicular stator punching in four truncation limits the stator punching neighboring is divided into four arc limits that equate, wherein per two adjacent arc limits all have been symmetrically formed a long flat bottomed recess and a semi-circular recesses; Also be formed with material on the arc limit therein and distinguish the hole.

Described material is distinguished the hole and is formed between the long flat bottomed recess and semi-circular recesses on the arc limit.

Stator punching length with the ratio of steel plate raw material width is: 0.514≤H/W≤0.516.

The stator punching width with the ratio of steel plate raw material width is: 0.500≤L/W≤0.502.

The truncation limit (5) of stator punching from the ratio of the distance in the center of circle and steel plate raw material width is: 0.254≤L4/W≤0.257.

The long flat bottomed recess length of described stator punching with the ratio of steel plate raw material width is: 0.056≤L3/W≤0.057.

The truncation corner degree of described stator punching is: 39.5 °≤A °≤40.5 °.

Arc sections gap X1 〉=0.8 of described stator punching.

Monolithic line part gap X2 〉=0.8 of described stator punching.

Stator laminating structure of motor of the present invention has been saved material on the whole.So stator punching of the present invention is compared with the stator punching profile of prior art, has simplified some unnecessary portions, keeping under the constant prerequisite of the original performance of stator punching the steel plate consumption being reduced to some extent, heat-sinking capability makes moderate progress.

Description of drawings

Fig. 1 is a rotary compressor internal structure schematic diagram;

Fig. 2 is the structural representation of the motor stator punching of prior art;

Fig. 3 is the plane figure schematic diagram of a plurality of motor stator punchings of prior art;

Fig. 4 is the local enlarged diagram of a portion among Fig. 3;

Fig. 5 is the local enlarged diagram of the b portion among Fig. 3;

Fig. 6 is the structural representation of motor stator punching of the present invention;

Fig. 7 is the plane figure schematic diagram of a plurality of motor stator punchings of the present invention;

Fig. 8 is the local enlarged diagram of a portion among Fig. 7:

Fig. 9 is the local enlarged diagram of the b portion among Fig. 7;

Figure 10 is the overall structure schematic diagram of motor stator of the present invention.

Wherein:

1: groove hole 2: platform

3: oblique wave groove 4: material is distinguished the hole

5: truncation limit 6: the arc limit

7: long flat bottomed recess 8: semi-circular recesses

9: material is distinguished hole 10: through slot

102: rotor 103: stator

104: motor section 105: rotating shaft

106: eccentric part 107: roll ring

108: compression stroke 109: cylinder

109a: suction inlet 110: upper bearing

111: lower bearing 117: fluid reservoir

118: discharge pipe

Embodiment

Below, describe stator laminating structure of motor of the present invention in conjunction with the accompanying drawings and embodiments in detail.

As shown in figure 10, stator core is to be formed by the direction accumulation of a plurality of stator punchings along axle, and the groove hole alignment on its stator punching forms through slot 10, is wound with coil on the through slot 10.

As shown in Figure 6, stator laminating structure of motor of the present invention, include the groove hole 1 that is used for winding around that is formed in its inner circumference portion, its neighboring along on be formed with four truncation limits 5, described per two truncation limits 5 are that the diameter with stator punching is that symmetry axis is symmetrically formed on stator punching; With the diameter of the perpendicular stator punching in four truncation limits 5 the stator punching neighboring is divided into four arc limits 6 that equate, wherein per two adjacent arc limits 6 all have been symmetrically formed a long flat bottomed recess 7 and a semi-circular recesses 8; Also be formed with material on the arc limit 6 therein and distinguish hole 9.Described material is distinguished hole 9 and is formed between the long flat bottomed recess 7 and semi-circular recesses 8 on the arc limit 6.

Fig. 7 is the plane figure schematic diagram of a plurality of motor stator punchings of the present invention; Fig. 8 is that the local enlarged diagram of a portion among Fig. 7: Fig. 9 is the local enlarged diagram of the b portion among Fig. 7.

We provide following expression in Fig. 7:

W: steel plate raw material width; H: monolithic length unshakable in one's determination; L: monolithic width unshakable in one's determination;

L3: long flat bottomed recess length; L4: the truncation limit from distance of center circle from; A: truncation corner degree;

X1: monolithic arc sections gap; X2: monolithic line part gap.

Thereby provide the following size of making this stator core:

1, stator punching length with the ratio of steel plate raw material width is: 0.514≤H/W≤0.516.

2, the stator punching width with the ratio of steel plate raw material width is: 0.500≤L/W≤0.502.

3. the truncation limit 5 of stator punching from the ratio of the distance in the center of circle and steel plate raw material width is: 0.254≤L4/W≤0.257.

4, the long flat bottomed recess length of stator punching with the ratio of steel plate raw material width is: 0.056≤L3/W≤0.057.

5, the truncation corner degree of stator punching is: 39.5 °≤A °≤40.5 °.

6, arc sections gap X1 〉=0.8 of stator punching.

7, monolithic line part gap X2 〉=0.8 of stator punching.

Stator punching of the present invention as can be seen from the contrast of Fig. 3, Fig. 4 Fig. 5 and corresponding each figure of Fig. 7, Fig. 8, Fig. 9 has been saved material on the whole owing to all be formed with the truncation limit on the dual-side on the length.And the arc sections gap X1 of stator punching is greater than the size of prior art, and the monolithic line part gap X2 of stator punching is also greater than the size of original technology.So stator punching of the present invention is compared with the stator punching profile of prior art, has simplified some unnecessary portions, keeping under the constant prerequisite of the original performance of stator punching the steel plate consumption being reduced to some extent, heat-sinking capability makes moderate progress.

Claims

1. stator laminating structure of motor, include the groove hole (1) that is used for winding around that is formed in its inner circumference portion, it is characterized in that, its neighboring along on be formed with four truncation limits (5), described per two truncation limits (5) are that the diameter with stator punching is that symmetry axis is symmetrically formed on stator punching; By the diameter with the perpendicular stator punching in four truncation limits (5) the stator punching neighboring is divided into four arc limits (6) that equate, wherein per two adjacent arc limits (6) all have been symmetrically formed a long flat bottomed recess (7) and a semi-circular recesses (8); Also be formed with material on the arc limit (6) therein and distinguish hole (9).

2. stator laminating structure of motor according to claim 1 is characterized in that, described material is distinguished hole (9) and is formed between the long flat bottomed recess (7) and semi-circular recesses (8) on the arc limit (6).

3. stator laminating structure of motor according to claim 1 is characterized in that, stator punching length with the ratio of steel plate raw material width is: 0.514≤H/W≤0.516.

4. stator laminating structure of motor according to claim 1 is characterized in that, the stator punching width with the ratio of steel plate raw material width is: 0.500≤L/W≤0.502.

5. stator laminating structure of motor according to claim 1 is characterized in that, the truncation limit (5) of stator punching from the ratio of the distance in the center of circle and steel plate raw material width is: 0.254≤L4/W≤0.257.

6. stator laminating structure of motor according to claim 1 is characterized in that, the long flat bottomed recess length of described stator punching with the ratio of steel plate raw material width is: 0.056≤L3/W≤0.057.

7. stator laminating structure of motor according to claim 1 is characterized in that, the truncation corner degree of described stator punching is: 39.5 °≤A °≤40.5 °.

8. stator laminating structure of motor according to claim 1 is characterized in that, arc sections gap X1 〉=0.8 of described stator punching.

9. stator laminating structure of motor according to claim 1 is characterized in that, monolithic line part gap X2 〉=0.8 of described stator punching.