CN108512326B - Armature ventilation slot plate for DC motor - Google Patents
Armature ventilation slot plate for DC motor Download PDFInfo
- Publication number
- CN108512326B CN108512326B CN201810536252.4A CN201810536252A CN108512326B CN 108512326 B CN108512326 B CN 108512326B CN 201810536252 A CN201810536252 A CN 201810536252A CN 108512326 B CN108512326 B CN 108512326B
- Authority
- CN
- China
- Prior art keywords
- armature
- plate
- ventilation slot
- punching
- ventilation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 83
- 238000004080 punching Methods 0.000 claims abstract description 41
- 238000003466 welding Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000004020 conductor Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to an armature ventilation groove plate for a direct current motor, which has the function of forming a radial ventilation channel in an armature core, thereby effectively improving the ventilation and heat dissipation capacity in the armature core of the motor and improving the overall heat dissipation performance of the motor. The armature ventilation slot plate device is mainly characterized in that a short ventilation slot plate and a long ventilation slot plate are fixed on one side of a whole-circle armature punching plate, the device is uniformly arranged and pressed in an armature laminated iron core, and the ventilation slot plate device is fixedly connected with an armature bracket through a round head flat key, so that air quantity flows through the armature iron core to take away heat generated by heating of a coil conductor, and the effect of effective heat dissipation is achieved. The short ventilation slot sheet, the long ventilation slot sheet and the armature punching sheet are all manufactured in a punching mode, wherein the armature punching sheet adopts a full-circle punching mode. The device has simple structure, easy manufacture, small size deviation and good integrity.
Description
Technical Field
The utility model relates to an armature ventilation slot plate for a direct current motor
Background
The box type direct current motor mainly adopts an axial ventilation structure in the past, and the traditional structure is to set up ventilation tube holes on the armature core of the motor, so that the cooling air quantity circulates to the other side in the armature core through one side and then flows to the outside to take away the heat generated by the operation of the motor, and the ventilation structure can not effectively reduce the heat generated after the heating conductors such as coils embedded on the surface of the armature core are electrified. With the improvement of the manufacturing process level of the motor, the heat resistance of the insulating material used in the manufacturing process of the motor is improved, and the limit value of the heating parameter allowed by the motor in electromagnetic design is also increased, so that a device structure which is more beneficial to ventilation and heat dissipation of the motor is needed to improve the heat dissipation capacity of the armature surface of the motor, thereby truly improving the level of the motor structural design.
Disclosure of Invention
The utility model aims to design an armature ventilation groove plate for a direct current motor, which is simple to manufacture and install and can greatly improve the heat dissipation efficiency of coils on the surface of an armature. The technical scheme of the utility model is as follows: the utility model provides an armature ventilation frid for direct current motor, this ventilation frid device comprises short ventilation slot piece (1), long ventilation slot piece (2) and whole circle armature punching sheet (3), short ventilation slot piece (1) spot welding is fixed round head flat key (4) top in armature punching sheet (3) one side, long ventilation slot piece (2) are fixed in the surface of armature punching sheet (3) according to circumference spot welding, and keep equidistant with armature punching sheet inner and outer circle, long ventilation slot piece (2) are installed in same one side with short ventilation slot piece (1), the ventilation frid device rethread round head flat key (4) that short ventilation slot piece (1), long ventilation slot piece (2), armature punching sheet (3) are constituteed carries out fastening connection with armature support (5), short ventilation slot piece (1), long ventilation slot piece (2), armature punching sheet (3) all adopt the punching mode to make, wherein armature punching sheet (3) adopts whole circle punching mode.
The working principle of the utility model is as follows:
the utility model aims to solve the problem that the axial ventilation structure adopted by the traditional box type direct current motor can not effectively reduce the heat generated after the heating conductors such as coils embedded on the surface of the armature core are electrified. The structure is shown in figure 1, the armature ventilation slot plate of the direct current motor mainly comprises a short ventilation slot plate, a long ventilation slot plate and a whole-circle armature punching plate, wherein the short ventilation slot plate is fixed above a round head flat key on one side of the armature punching plate by spot welding, the long ventilation slot plate is fixed on the surface of the armature punching plate by spot welding according to the circumference and keeps equal spacing with the inner circle and the outer circle of the armature punching plate, the long ventilation slot plate and the short ventilation slot plate are arranged on the same side, and a ventilation slot plate device formed by the short ventilation slot plate, the long ventilation slot plate and the armature punching plate is fastened and connected with an armature bracket by the round head flat key. The short ventilation slot sheet, the long ventilation slot sheet and the armature punching sheet are all manufactured in a punching mode, wherein the armature punching sheet adopts a full-circle punching mode.
The structure of the utility model has the advantages that:
the novel radial ventilation device for the armature core is beneficial to ventilation and cooling of the interior of the armature core and greatly improves the heat dissipation capacity of the armature surface coil.
The utility model solves the problem that the existing motor armature core design lacks an effective radial ventilation cooling device and mainly uses an axial ventilation hole as a cooling air path, and has the design characteristics of relatively simple structure and relatively simple manufacturing process mode, and the main body punching sheet in the device adopts a whole-circle structure and has excellent integration after being assembled with the armature core lamination. Therefore, the utility model of the device not only improves the ventilation effect of the armature inside the direct current motor, but also does not increase the complexity degree of the armature in the manufacturing process and the implementation difficulty of the process. In addition, through the realization of the implementation case, the device has excellent assembly and use effects.
Description of the drawings:
fig. 1 is a front view of an armature ventilation slot plate of a dc motor;
fig. 2 is a schematic diagram of an armature ventilation slot plate assembly working principle of the direct current motor;
fig. 3 is an enlarged view of the armature ventilation slot plate connection mode of the DC motor
Detailed Description
The armature ventilation slot plate for the direct current motor is shown in fig. 1 and 3, the ventilation slot plate device consists of a short ventilation slot plate 1, a long ventilation slot plate 2 and a round armature punching plate 3, the short ventilation slot plate 1 is fixed above a round head flat key 4 on one side of the armature punching plate 3 by spot welding, the long ventilation slot plate 2 is fixed on the surface of the armature punching plate 3 by spot welding according to the circumference and keeps equal distance with the inner circle and the outer circle of the armature punching plate, the long ventilation slot plate 2 and the short ventilation slot plate 1 are arranged on the same side, and the ventilation slot plate device consisting of the short ventilation slot plate 1, the long ventilation slot plate 2 and the armature punching plate 3 is fixedly connected with an armature bracket 5 by the round head flat key 4. In order to effectively tighten the gap between the key groove on the armature ventilation groove plate and the armature support to ensure mechanical strength in operation, in the assembly process, the round flat key 4 is subjected to gap measurement and then is matched with the round flat key for use in an adapting mode. The short ventilation slot sheet 1, the long ventilation slot sheet 2 and the armature punching sheet 3 are all manufactured in a punching mode, wherein the armature punching sheet 3 is manufactured in a full-circle punching mode.
As shown in fig. 2, the armature front and rear pressing rings 1 fasten the armature ventilation groove plates 2 and the laminated iron core 3 into a whole through a hydraulic device and a special tool, in the stacking process, the armature ventilation groove plates 2 are uniformly distributed between each section of iron core section of the laminated iron core 3, the armature ventilation groove plates 2 and the laminated iron core 3 are fastened and coupled with the armature bracket 5 through round flat keys 4, and the armature bracket 5 and the rotating shaft 6 are subjected to hot sleeve installation in an interference coupling mode. In the ventilation and cooling process of the motor, cooling air quantity entering the armature bracket enters between the armature ventilation groove plate 2 and the laminated iron core 3 through air deflectors welded between rib plates on the armature bracket 5, so that the air quantity uniformly and effectively flows through the coil surface embedded in the armature iron core, and heat generated by coil conductors in the operation process of the motor is taken away, and the heat dissipation performance of the motor is effectively improved.
In the embodiment, the direct current motor is designed to have a rated power of 1200kW, a rated voltage of 630V, a rotating speed of 120/312r/min, an insulation grade of F grade, a protection grade of IP44 and a cooling mode of air-water cooling.
Claims (1)
1. An armature ventilation slot plate for a direct current motor is characterized in that: the ventilation groove plate device consists of a short ventilation groove plate (1), a long ventilation groove plate (2) and a whole-circle armature punching plate (3), wherein the short ventilation groove plate (1) is fixed above a round head flat key (4) on one side of the armature punching plate (3) through spot welding, the long ventilation groove plate (2) is fixed on the surface of the armature punching plate (3) through spot welding according to the circumference, the distance between the long ventilation groove plate (2) and the inner circle and the outer circle of the armature punching plate are kept equal, the long ventilation groove plate (2) and the short ventilation groove plate (1) are arranged on the same side, the short ventilation groove plate (1), the long ventilation groove plate (2) and the armature punching plate (3) are fastened and connected with an armature bracket (5) through the round head flat key (4), and the short ventilation groove plate (1), the long ventilation groove plate (2) and the armature punching plate (3) are manufactured in a punching mode, and the armature punching mode is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536252.4A CN108512326B (en) | 2018-05-30 | 2018-05-30 | Armature ventilation slot plate for DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536252.4A CN108512326B (en) | 2018-05-30 | 2018-05-30 | Armature ventilation slot plate for DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108512326A CN108512326A (en) | 2018-09-07 |
| CN108512326B true CN108512326B (en) | 2024-04-05 |
Family
ID=63402262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810536252.4A Active CN108512326B (en) | 2018-05-30 | 2018-05-30 | Armature ventilation slot plate for DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108512326B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460179A (en) * | 2019-08-13 | 2019-11-15 | 江苏中车电机有限公司 | A kind of motor welding ventilation channel plate |
| CN112994285B (en) * | 2021-04-13 | 2022-09-09 | 哈动国家水力发电设备工程技术研究中心有限公司 | Aerogenerator stator with support fixed establishment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201341046Y (en) * | 2008-12-31 | 2009-11-04 | 无锡哈电电机有限公司 | Ventilation structure of direct current motor |
| CN102403813A (en) * | 2011-11-15 | 2012-04-04 | 中电电机股份有限公司 | Ventilated channel board of motor rotor |
| CN102810918A (en) * | 2012-08-31 | 2012-12-05 | 中电电机股份有限公司 | Armature core structure of DC (Direct Current) motor |
| CN103973014A (en) * | 2013-01-31 | 2014-08-06 | 安徽明腾永磁机电设备有限公司 | Rotor of permanent magnet motor |
| CN204012989U (en) * | 2014-07-08 | 2014-12-10 | 东方电气集团东方电机有限公司 | A kind of rotor ventilation frid of high-speed permanent magnet motor |
| CN208241420U (en) * | 2018-05-30 | 2018-12-14 | 哈尔滨电气动力装备有限公司 | Armature ventilation channel plate for direct current generator |
-
2018
- 2018-05-30 CN CN201810536252.4A patent/CN108512326B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201341046Y (en) * | 2008-12-31 | 2009-11-04 | 无锡哈电电机有限公司 | Ventilation structure of direct current motor |
| CN102403813A (en) * | 2011-11-15 | 2012-04-04 | 中电电机股份有限公司 | Ventilated channel board of motor rotor |
| CN102810918A (en) * | 2012-08-31 | 2012-12-05 | 中电电机股份有限公司 | Armature core structure of DC (Direct Current) motor |
| CN103973014A (en) * | 2013-01-31 | 2014-08-06 | 安徽明腾永磁机电设备有限公司 | Rotor of permanent magnet motor |
| CN204012989U (en) * | 2014-07-08 | 2014-12-10 | 东方电气集团东方电机有限公司 | A kind of rotor ventilation frid of high-speed permanent magnet motor |
| CN208241420U (en) * | 2018-05-30 | 2018-12-14 | 哈尔滨电气动力装备有限公司 | Armature ventilation channel plate for direct current generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108512326A (en) | 2018-09-07 |
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