CN204376665U - 75kw generator - Google Patents

75kw generator Download PDF

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Publication number
CN204376665U
CN204376665U CN201420777878.1U CN201420777878U CN204376665U CN 204376665 U CN204376665 U CN 204376665U CN 201420777878 U CN201420777878 U CN 201420777878U CN 204376665 U CN204376665 U CN 204376665U
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CN
China
Prior art keywords
coil
generator
width
stator
magnetic
Prior art date
Application number
CN201420777878.1U
Other languages
Chinese (zh)
Inventor
杨均
李曦
赵强
Original Assignee
重庆智仁发电设备有限责任公司
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Publication date
Application filed by 重庆智仁发电设备有限责任公司 filed Critical 重庆智仁发电设备有限责任公司
Priority to CN201420777878.1U priority Critical patent/CN204376665U/en
Application granted granted Critical
Publication of CN204376665U publication Critical patent/CN204376665U/en

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Abstract

The utility model discloses a kind of 75kW generator, comprise stators and rotators, the magnetic shoe that described rotor comprises armature spindle, rotor core and is fixed on rotor core; Described stator comprises the stator core be made up of some punchings, described punching is provided with coil groove and coil tooth, and described coil tooth is rectangular teeth, and the ratio of the width of coil tooth and the width of coil groove is 0.5 ~ 0.7.The utility model 75kW generator, its rotor adopts magnetic shoe to form rotating magnetic field, take up room less, larger by the magnetic flux density of stator coil, make generator volume less, generating efficiency is higher, simultaneously the ratio of the width of the width of coil tooth and coil groove controls 0.5 ~ 0.7 by it, makes the coil turn in coil groove and reaches best of breed state by the magnetic flux of coil tooth, thus eliminate stator core magnetic saturation problem, make electrical power generators efficiency higher, longer service life.

Description

75kW generator

Technical field

The utility model relates to a kind of generating equipment, particularly a kind of 75kW generator.

Background technology

Generator comprises stators and rotators, generator unit stator by stator core, stator winding and support three part form, rotor is made up of armature spindle, rotor core and permanent magnet.Iron core is formed by high permeability material punching overlapping combinations, and the structure of punching directly affects the assembling production efficiency etc. of the efficiency of generator, life-span, performance and motor.

And existing 75kW generator, the problems such as its permanent magnet is generally all-in-one-piece rectangular strip structure, and permanent magnet is inserted on rotor core, and it is large that generator exists rotor volume, and magnetic flux density is lower, generating efficiency difference.

And stator punching of the prior art in the design process general size, the teeth groove only focusing on teeth groove can penetrate coil turn number, and have ignored the ratio of the facewidth and teeth groove degree, and then stator core is caused easily to occur the problem such as magnetic saturation, poor radiation.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of 75kW generator, and to solve, existing 75kW generator volume is large, low etc. the problem of generating efficiency.

The utility model 75kW generator, comprise stators and rotators, the magnetic shoe that described rotor comprises armature spindle, rotor core and is fixed on rotor core, described magnetic shoe is four groups, often organize magnetic shoe and comprise eight blocks of magnetic shoes, and eight blocks of magnetic shoes arrange layout by two row four is fixed on rotor core.

Further, described stator comprises the stator core be made up of some punchings, described punching is provided with coil groove and coil tooth, and described coil tooth is rectangular teeth, and the ratio of the width of coil tooth and the width of coil groove is 0.5 ~ 0.7.

Further, the bottom radius of described coil groove and the ratio of notch radius are 1.25, and the ratio of punching exradius and inner circle radius is 1.6.

Further, the cylindrical edge of described punching is provided with radiating groove.

The beneficial effects of the utility model:

1, the utility model 75kW generator, its rotor adopts magnetic shoe to form rotating magnetic field, relatively with existing rectangular permanent magnet, shared by it, space is less, larger by the magnetic flux density of stator coil, makes generator volume less, generating efficiency is higher, and manufacturing cost is lower.

2, the utility model 75kW generator, the ratio of the width of coil tooth on stator punching and the width of coil groove controls 0.5 ~ 0.7 by it, make the coil turn in coil groove and reach best of breed state by the magnetic flux of coil tooth, thus eliminate stator core magnetic saturation problem, the width of coil tooth also ensure that it has enough area of dissipations simultaneously, make electrical power generators efficiency higher, longer service life.

3, the utility model 75kW generator, the radiating groove that it is arranged can further improve the heat-sinking capability of stator, extends stator useful life, also can reduce the manufacturing cost of stator simultaneously.

Accompanying drawing explanation

Fig. 1 is the sectional structure schematic diagram of the utility model 75kW generator;

Fig. 2 is the perspective view of rotor;

Fig. 3 is the structural representation of stator punching.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

As shown in the figure, the present embodiment 75kW generator, comprise stators and rotators, the magnetic shoe 3 that described rotor comprises armature spindle 1, rotor core 2 and is fixed on rotor core, described magnetic shoe 3 is four groups, often organize magnetic shoe and comprise eight blocks of magnetic shoes, and eight blocks of magnetic shoes arrange layout by two row four is fixed on rotor core.

The utility model 75kW generator, its rotor adopts magnetic shoe to form rotating magnetic field, and relatively with existing rectangular permanent magnet, shared by it, space is less, and larger by the magnetic flux density of stator coil, make generator volume less, generating efficiency is higher, and manufacturing cost is lower.

As the improvement to the present embodiment, described stator comprises the stator core be made up of some punchings 4, described punching is provided with coil groove 5 and coil tooth 6, described coil tooth is rectangular teeth, the ratio of the width of coil tooth and the width of coil groove is 0.5, certainly in different embodiments, the ratio of the width of coil tooth and the width of coil groove also can be other value in 0.5 ~ 0.7 scope, and the quantity of coil groove 5 is 36.The present embodiment 75kW generator, the ratio of the width of the width of coil tooth and coil groove controls 0.5 ~ 0.7 by it, make the coil turn in coil groove and reach best of breed state by the magnetic flux of coil tooth, thus eliminate stator core magnetic saturation problem, the width of coil tooth also ensure that it has enough area of dissipations simultaneously, make electrical power generators efficiency higher, longer service life.

As the improvement to the present embodiment, the bottom radius of described coil groove and the ratio of notch radius are 1.25, and the ratio of punching exradius and inner circle radius is 1.6; Its dimensional structure can ensure that magnetic saturation problem does not appear in stator core, and controls air gap at zone of reasonableness, reduces magnetic resistance, and makes stator volume enough little, makes cost lower.

As the improvement to the present embodiment, the cylindrical edge of described punching is provided with radiating groove 7, and the cooling air that Power generator fan produces cools by radiating groove 7 pairs of stator cores, can improve generator life-span and generating efficiency further.

What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.

Claims (4)

1. a 75kW generator, comprise stators and rotators, it is characterized in that: the magnetic shoe that described rotor comprises armature spindle, rotor core and is fixed on rotor core, described magnetic shoe is four groups, often organize magnetic shoe and comprise eight blocks of magnetic shoes, and eight blocks of magnetic shoes arrange layout by two row four is fixed on rotor core.
2. 75kW generator according to claim 1, it is characterized in that: described stator comprises the stator core be made up of some punchings, described punching is provided with coil groove and coil tooth, described coil tooth is rectangular teeth, and the ratio of the width of coil tooth and the width of coil groove is 0.5 ~ 0.7.
3. 75kW generator according to claim 2, is characterized in that: the bottom radius of described coil groove and the ratio of notch radius are 1.25, and the ratio of punching exradius and inner circle radius is 1.6.
4. 75kW generator according to claim 2, is characterized in that: the cylindrical edge of described punching is provided with radiating groove.
CN201420777878.1U 2014-12-10 2014-12-10 75kw generator CN204376665U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420777878.1U CN204376665U (en) 2014-12-10 2014-12-10 75kw generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420777878.1U CN204376665U (en) 2014-12-10 2014-12-10 75kw generator

Publications (1)

Publication Number Publication Date
CN204376665U true CN204376665U (en) 2015-06-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420777878.1U CN204376665U (en) 2014-12-10 2014-12-10 75kw generator

Country Status (1)

Country Link
CN (1) CN204376665U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105471148A (en) * 2015-12-04 2016-04-06 重庆智仁发电设备有限责任公司 5KW 8-pole 48V intermediate-frequency dual-winding direct current electric generator
CN105471129A (en) * 2016-01-15 2016-04-06 重庆智仁发电设备有限责任公司 6-15KW low-power generator
CN105576859A (en) * 2016-01-15 2016-05-11 重庆智仁发电设备有限责任公司 Generator punching plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105471148A (en) * 2015-12-04 2016-04-06 重庆智仁发电设备有限责任公司 5KW 8-pole 48V intermediate-frequency dual-winding direct current electric generator
CN105471129A (en) * 2016-01-15 2016-04-06 重庆智仁发电设备有限责任公司 6-15KW low-power generator
CN105576859A (en) * 2016-01-15 2016-05-11 重庆智仁发电设备有限责任公司 Generator punching plate

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