CN101521427A - Self-ventilation pulling motor - Google Patents
Self-ventilation pulling motor Download PDFInfo
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- CN101521427A CN101521427A CN200810079856A CN200810079856A CN101521427A CN 101521427 A CN101521427 A CN 101521427A CN 200810079856 A CN200810079856 A CN 200810079856A CN 200810079856 A CN200810079856 A CN 200810079856A CN 101521427 A CN101521427 A CN 101521427A
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Abstract
The invention relates to a motor, in particular to a self-ventilation pulling motor, which solves the problems of uneven and unreasonable heat distribution and the like due to structural defect of a totally closed pulling motor. A frame is of the shape of outer square and inner round, and the frame is provided with an interlayer inner air channel and an interlayer outer air channel, the inner wall of the frame is provided with an air inlet for the inner air channel, the end surface of the interlayer inner air channel is provided with a wind deflector; the periphery of a frame spigot disk of a front end cover and a back end cover is provided with an outer air chute communicated with the interlayer outer air channel and an inner air vent communicated with the interlayer inner air channel, and the inner wall of the end cover is provided with an inner ventilation groove; the shaft head of a motor is provided with a main centrifugal fan, and a rotor is provided with a secondary centrifugal fan. The optimal ventilation and heat dissipation and high efficient cooling effect can be realized in a limited space, and the whole motor has novel design, compact structure, reduced weight and increased heat dissipation area, thus realizing light weight, high cooling performance and high level of protection, reducing the designing cost of the whole system and ensuring the spatial arrangement to be more reasonable.
Description
Technical field
The present invention relates to a kind of motor, be specially a kind of self-ventilation pulling motor.
Background technology
According to statistics, existing in the world 50 nation-building 360 light railways.These vehicle major parts all are 70% or 100% low floor vehicles.Low-floor light rail vehicle is convenient to the passenger and is got on or off the bus, even can not repair platform because its floor is low, greatly reduces the overall cost of system.Though low-floor light rail vehicle structure more complicated, but compare with whole rail traffic investment reduction, institute's increase expense is considerably less, not only development also can expand to big and medium-sized cities in the megalopolis can to make track traffic, with the Traffic Development general layout of change whole country, so light rail transit more and more is subjected to various countries' attention.Relative subway and elevated railway, this type car also has advantages such as small investment, instant effect, new urban transportation theories such as hommization, green traffic have been embodied, simultaneously can also promote city taste as urban look, the 70% low-floor light rail transit project of we can say can make many cities effectively solve the traffic problems in city under existing economic condition.
Yet owing to the structure of 70% lowland wooden handcart and the restriction of application, determined the installation site and the design feature of this car traction electric machine: be installed in space anxiety under the car, require power of motor density big, volume is little, good heat dissipation; Very near apart from ground, running environment is abominable, big, the easily water inlet of dust; Require in light weight.According to the applicable cases of present import motor, electric machine temperature rise is very high, near the class of insulation limit, the life-span and the Secure Application of motor is all brought hidden danger.
The situation similar to the traction electric machine operating condition of above-mentioned 70% lowland wooden handcart also has a lot, in a word, big when power of motor density, environment for use is abominable, when installing space is nervous, need to adopt full-closed structure, the outstanding problem that this full-enclosed structure exists is exactly an efficiently radiates heat how, but there is following defective in the traction electric machine that is applied in this field at present:
(1) motor internal does not have interior circulation wind path, makes internal heat inhomogeneous, epitrochanterian heat can't be brought to the support heat radiation, finally causes sliver, end ring and bearing running hot;
(2) support is full lamination, since motor gauge in height requires and manufacturing process on limitation, on electric machine stand top and the bottom can't arrange the ventilation hole that matches with the air channel on the end cap, can only arrange the minority ventilation hole in the support two sides, like this because the distribution of ventilation hole does not have emphasis, making the support upper and lower part temperature of motor up to 180 ℃, is 2 times of two sides, and Temperature Distribution is extremely unreasonable;
(3) the inside and outside heat distribution of motor is inhomogeneous, in case definite, the heat of its generation and area of dissipation are just definite when the power of motor volume, and same heat is concentrated and made the overheated scaling loss in a certain position, even other regional temperature is very low also nonsensical,
So how the traction electric machine self structure that is under the special operation condition is improved, make it satisfy the self-ventilation requirement, be the difficult problem that this field needs to be resolved hurrily.
Summary of the invention
Existing power density is big, environment for use is abominable in order to solve in the present invention, and the totally-enclosed traction electric machine of installing space anxiety provides a kind of self-ventilation pulling motor because there are problems such as heat distribution is inhomogeneous, unreasonable in structural defective.
The present invention adopts following technical scheme to realize: self-ventilation pulling motor, comprise support, front end housing, rear end cap, rotor, have the rotor ventilation hole on the rotor core, the front end housing termination has air inlet, innovative point of the present invention is: support is the square-outside and round-inside shape, be provided with between the inner and outer wall of support that outside the air channel and interlayer the air channel in the interlayer, the outer alternate setting in air channel of air channel and interlayer in the interlayer, on the inwall of support, be provided with interlayer in the interior air channel air inlet that is communicated with of air channel, the air channel end face is provided with deep bead in the interlayer; The support seam dish border of front end housing and rear end cap has the separate ventilation road that communicates with the outer air channel of interlayer on the support, support seam dish border also have with support on interlayer in the interior ventilating opening that communicates of air channel, the interior ventilation slot that the setting of end cap inwall communicates with interior ventilating opening; Motor shaft head is installed main centrifugal fan, is positioned at secondary centrifugal fan is installed on the rotor of front end housing one side.
Adopt structural design of the present invention, after whole motor assembles, in each interlayer on the support air channel with before, the corresponding one by one and connection of the interior air duct that constitutes by interior ventilating opening and interior ventilation slot on the rear end cap, simultaneously each the interlayer separate ventilation road on the support with before, the corresponding one by one and connection in separate ventilation road on the rear end cap, the support motor internal has formed interior circulation wind path and outer circulation wind path, and wherein interior circulation wind path trend is passed through the rotor ventilation hole successively for the air quantity that secondary centrifugal fan produces, end winding, the interior air channel air inlet of inboard wall of base, air channel in the interlayer, ventilating opening and interior ventilation slot in the rear end cap; Outer circulation wind path trend be the air quantity that produces of main centrifugal fan successively by the separate ventilation road on the front end housing, the interlayer separate ventilation road on the support, the separate ventilation road of rear end cap, above-mentioned two wind paths constantly circulate; The alternate layout of wind path simultaneously with outer wind path, and air channel air intake end face is aided with the circulation that deep bead just can be realized inside and outside two wind paths in the support interlayer, and outer wind path can fully be taken away the heat of interior wind path.Interior wind path makes the conduction of motor internal heat evenly under the secondary centrifugal fan effect that motor internal is installed, epitrochanterian heat is brought to the support heat radiation, use the heat of secondary fan insulate conduction simultaneously, finally make the heat distribution of sliver, end ring and bearing more reasonable to bearing; Wind path heat and take away the heat that is radiated on the support in outer wind path is taken away under the main centrifugal fan effect that motor shaft end is installed, two air channels supplement and complement each other, and acting in conjunction has solved the not vaporific drawback of totally-enclosed machine internal heat.
The outer wall of described front end housing and rear end cap is respectively equipped with reinforcement, the reinforcement two ends are run through with installation seam dish with its support seam dish respectively and are connected, not only strengthened the end cap mechanical strength greatly, and reduced because casting technique is limit the round wall deflection that causes, the distribution of described reinforcement and quantity can be determined according to the end cap practical structures.
Be distributed with ventilation hole on the described main centrifugal fan, form wind path with its inboard bearing of further cooling.
Described front end housing, rear end cap and support are all made by ductile cast iron material, utilize the casting characteristic of spheroidal graphite cast-iron good fluidity, and end cap and support are designed to thin-walled, alleviate the weight of motor complete machine.
Compared with prior art, utilize the interlayer air channel of support, before, the inside and outside air channel of rear end cap and rotor ventilation hole, main centrifugal fan, secondary centrifugal fan has constituted complete cooling system jointly, realized the optimal ventilation heat radiation in limited space, reach high efficient cooling effect, whole design of electrical motor novelty, compact conformation, not only alleviated motor weight, and increased area of dissipation greatly, realized lightweight, high cooling performance, its volume is little, the advantage that degree of protection is high will make the whole system design cost reduce, spatial placement is more reasonable, product is more competitive, it is big to be widely used in power of motor density, environment for use is abominable, under the operating modes such as installing space anxiety, is particularly useful for wooden handcart field, 70% lowland.
Description of drawings
Fig. 1 is the structural representation of support of the present invention
Fig. 2 is the end view of Fig. 1
Fig. 3 is the structural representation of end cap of the present invention
Fig. 4 is the end view of Fig. 3
Fig. 5 is a circulated air line structure schematic diagram in the motor of the present invention
Fig. 6 is a motor outer circulation wind path structural representation of the present invention
Among the figure: 1-support, 2-front end housing, 3-rear end cap, the 4-rotor, 5-rotor ventilation hole, 6-air inlet, air channel in the 7-interlayer, the outer air channel of 8-interlayer, air channel air inlet in the 9-, the 10-deep bead, 11-support seam dish, 12-separate ventilation road, ventilation slot in the ventilating opening in the 13-, 14-, 15-master's centrifugal fan, the 16-reinforcement, 17-installs seam dish, 18-ventilation hole.
Embodiment
Self-ventilation pulling motor, comprise support 1, front end housing 2, rear end cap 3, rotor 4, have rotor ventilation hole 5 on the rotor core, front end housing 2 terminations have air inlet 6, motor shaft head is installed main centrifugal fan 15, be distributed with ventilation hole 18 on the main centrifugal fan 15, be positioned at secondary centrifugal fan 16 is installed on the rotor of front end housing 2 one sides, as Fig. 1, shown in 2, support 1 is the square-outside and round-inside shape, be provided with between the inner and outer wall of support that outside the air channel 7 and interlayer air channel 8 in the interlayer, the outer alternate setting in air channel of air channel and interlayer in the interlayer, the concrete distribution as shown in the figure, on the inwall of support, be provided with interlayer in the interior air channel air inlet 9 that is communicated with of air channel 7, air channel 7 end faces are provided with deep bead 10 in the interlayer; Support is the cast frame in a kind of strap clamp layer air channel, be cast with shape, the different ventilation hole of sectional area, be assigned as inside and outside circulation air path respectively by its effect, because therefore motor section and the highest position of temperature of lower are increasing the sectional area of ventilation hole to distribute more air quantity near the place, upper and lower part; Because casting forms complicated moulding than stamping-out is easy, so the air duct efficiently radiates heat area of the present invention's design is 1.28 times of original motor, is more conducive to heat and distributes;
Shown in Fig. 3,4, support seam dish 11 borders of front end housing 2 and rear end cap 3 have the separate ventilation road 12 that communicates with the outer air channel 8 of interlayer on the support, support seam dish 11 borders also have with support on interlayer in the interior ventilating opening 13 that communicates of air channel 7, the interior ventilation slot 14 that the setting of end cap inwall communicates with interior ventilating opening 13; In order further to strengthen the mechanical strength of end cap, the outer wall of front end housing 2 and rear end cap 3 is respectively equipped with reinforcement 16, and reinforcement 16 two ends are run through with installation seam dish 17 with its support seam dish 11 respectively and are connected, and reinforcement also has heat sinking function simultaneously;
Front end housing 2, rear end cap 3 and support 1 all are to be made by the good ductile cast iron material of heat radiation heat conductivility.
During concrete enforcement, treat that whole motor assembles after, can realize the circulation of following wind path:
(1) realization of the interior circulation wind path of motor: motor adopts machine interior totally-enclosed, carries secondary centrifugal fan on the rotor, and air quantity is by the interior air channel of interior air channel air inlet, interlayer, the interior ventilating opening of rear end cap and the interior ventilation slot of rotor ventilation hole, end winding, inboard wall of base;
(2) realization of motor outer circulation wind path: motor shaft head carries main centrifugal fan, and air quantity is by the separate ventilation road on the front end housing, the interlayer separate ventilation road on the support, the separate ventilation road and the reinforcement of rear end cap;
(3) realization of motor cooling bearing wind path: motor shaft head carries main centrifugal fan, and the ventilation hole that distributes on the fan forms wind path with cooling bearing.
Claims (4)
1, a kind of self-ventilation pulling motor comprises support (1), front end housing (2), rear end cap (3), rotor (4), has rotor ventilation hole (5) on the rotor core, and front end housing (2) termination has air inlet (6), it is characterized in that:
Support (1) is the square-outside and round-inside shape, between the inner and outer wall of support, be provided with air channel (8) outside air channel in the interlayer (7) and the interlayer, the outer alternate setting in air channel of air channel and interlayer in the interlayer, on the inwall of support, be provided with interlayer in the interior air channel air inlet (9) that is communicated with of air channel (7), air channel (7) end face is provided with deep bead (10) in the interlayer;
Support seam dish (11) border of front end housing (2) and rear end cap (3) has the separate ventilation road (12) that communicates with the outer air channel (8) of interlayer on the support, support seam dish (11) border also have with support on interlayer in the interior ventilating opening (13) that communicates of air channel (7), the interior ventilation slot (14) that the setting of end cap inwall communicates with interior ventilating opening (13);
Motor shaft head is installed main centrifugal fan (15), is positioned at secondary centrifugal fan (16) is installed on the rotor of front end housing (2) one sides.
2, self-ventilation pulling motor according to claim 1, the outer wall that it is characterized in that described front end housing (2) and rear end cap (3) is respectively equipped with reinforcement (16), and reinforcement (16) two ends are run through with installation seam dish (17) with its support seam dish (11) respectively and are connected.
3, self-ventilation pulling motor according to claim 1 and 2 is characterized in that being distributed with on the described main centrifugal fan (15) ventilation hole (18).
4, self-ventilation pulling motor according to claim 1 and 2 is characterized in that front end housing (2), rear end cap (3) and support (1) all made by ductile cast iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810079856A CN101521427A (en) | 2008-11-15 | 2008-11-15 | Self-ventilation pulling motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810079856A CN101521427A (en) | 2008-11-15 | 2008-11-15 | Self-ventilation pulling motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101521427A true CN101521427A (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810079856A Pending CN101521427A (en) | 2008-11-15 | 2008-11-15 | Self-ventilation pulling motor |
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| CN (1) | CN101521427A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166340A (en) * | 2011-12-15 | 2013-06-19 | 株式会社日立制作所 | Rotating electric machine, rail vehicle and electric vehicle equipped therewith |
| CN105811661A (en) * | 2016-03-31 | 2016-07-27 | 中车永济电机有限公司 | Single-bearing fully-enclosed self-ventilated motor |
| CN106300780A (en) * | 2016-08-26 | 2017-01-04 | 安徽皖南电机股份有限公司 | Motor |
| CN106549528A (en) * | 2015-09-18 | 2017-03-29 | 丹佛斯（天津）有限公司 | Magneto and rotor endcap |
| CN110541843A (en) * | 2019-09-23 | 2019-12-06 | 上海电气集团上海电机厂有限公司 | Centrifugal fan air volume distribution and adjustment method for air cooling motor |
| CN111697716A (en) * | 2020-06-12 | 2020-09-22 | 西安中车永电捷力风能有限公司 | Stator punching sheet, stator core thereof and double-fed wind driven generator |
| CN112713716A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Closed motor with internal and external cooling wind path and motor base |
-
2008
- 2008-11-15 CN CN200810079856A patent/CN101521427A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166340A (en) * | 2011-12-15 | 2013-06-19 | 株式会社日立制作所 | Rotating electric machine, rail vehicle and electric vehicle equipped therewith |
| CN106549528A (en) * | 2015-09-18 | 2017-03-29 | 丹佛斯（天津）有限公司 | Magneto and rotor endcap |
| CN105811661A (en) * | 2016-03-31 | 2016-07-27 | 中车永济电机有限公司 | Single-bearing fully-enclosed self-ventilated motor |
| CN106300780A (en) * | 2016-08-26 | 2017-01-04 | 安徽皖南电机股份有限公司 | Motor |
| CN106300780B (en) * | 2016-08-26 | 2019-01-25 | 安徽皖南电机股份有限公司 | Motor |
| CN110541843A (en) * | 2019-09-23 | 2019-12-06 | 上海电气集团上海电机厂有限公司 | Centrifugal fan air volume distribution and adjustment method for air cooling motor |
| CN111697716A (en) * | 2020-06-12 | 2020-09-22 | 西安中车永电捷力风能有限公司 | Stator punching sheet, stator core thereof and double-fed wind driven generator |
| CN112713716A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Closed motor with internal and external cooling wind path and motor base |
| CN112713716B (en) * | 2020-12-21 | 2022-04-26 | 中车永济电机有限公司 | Closed motor with internal and external cooling wind path and motor base |
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Application publication date: 20090902 |