CN205622392U - Distribute but ventilation structure of medium flow of interior separately cooling according to loss ratio - Google Patents
Distribute but ventilation structure of medium flow of interior separately cooling according to loss ratio Download PDFInfo
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- CN205622392U CN205622392U CN201620156169.0U CN201620156169U CN205622392U CN 205622392 U CN205622392 U CN 205622392U CN 201620156169 U CN201620156169 U CN 201620156169U CN 205622392 U CN205622392 U CN 205622392U
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- baffle
- air
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- bending
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Abstract
The utility model provides a distribute but ventilation structure of medium flow of interior separately cooling according to loss ratio, be equipped with the air conduits who forms by a plurality of beads in the casing of motor, still include in the casing with the bead complex inside and outside the wind path baffle, inside and outside wind path baffle includes first baffle and second baffle, wherein, first baffle and second baffle are the annular, be equipped with a plurality of first portions of bending on the first baffle, be equipped with the second portion of bending that a plurality of and first width of bending corresponds on the second baffle, the first portion of bending cooperates with the air intake of casing air conduits's driving end, the second portion of bending cooperates with the air outlet of casing air conduits's non -transmission end, the inside and outside air separation of inside and outside wind path baffle in with the tip air cavity is opened, formation is used for the interior ventiduct of inside air current ventilation and the outer ventiduct that outside medium ventilates. Can make stator part and rotor part obtain balanced cooling effect distribution to perfect the holistic temperature rise distribution situation of motor.
Description
Technical field
This utility model relates to a kind of aeration structure of motor, relates to the switch type aeration structure of a kind of motor, belongs to technical field of motors.
Background technology
The heat transmission of motor internal is a process the most rambunctious, and along with the requirement for capacity motor is continuously increased, the increase of specific loss can cause temperature to raise, and can have a significant impact the reliability of each element and life-span when temperature rise is too high.
Owing to the rotor of different types of motor is lost the ratio magnitude difference of shared total losses, the scale that should produce for loss and heat, the flow of reasonable distribution each several part cooling medium.
Stationary part and rotor portion have certain temperature rise gap, owing to temperature is transmitted to low temperature from high temperature, when stator inboard portion cannot obtain preferable cooling effect, heat inside stator easily passes to rotor, and the cooling performance of interior wind path cooling medium is poor, so that the temperature rise of each element of rotor portion is too high, their reliability is caused to reduce, the lost of life.So the exchange capability of heat improving a cooling medium is the most critically important.Such as permanent magnet material neodymium iron boron used by magneto, irrational temperature rise can cause serious demagnetization phenomenon.And the price of permanent magnet can improve along with the rising of its ability of being heated.So answering the circulation path of reasonable distribution cooling medium so that the temperature rise control of motor each several part is in the range of reasonably, to improve its operational reliability.
Utility model content
The purpose of this utility model is that each parts of motor internal caused due to air circulation irrational distribution to solve common motor ventilation structure can not get due cooling effect problem, there is provided a kind of and mate rotor loss and the switch type aeration structure of medium cooling effect and method, reasonably can indirectly improve runnability and the power density of motor under air vent mode, improve the service life of each parts.
For achieving the above object, the utility model discloses following technical scheme:
nullA kind of aeration structure by the loss inside and outside cooling medium consumption of ratio distribution，The air duct formed by some fins it is provided with in the casing of motor，The inner and outer air paths baffle plate coordinated with fin is also included in casing，Inner and outer air paths baffle plate includes the first baffle plate and second baffle，Wherein，First baffle plate and second baffle are annular，First baffle plate is provided with some first bending parts，Second baffle is provided with some second bending parts corresponding with the first bending part width，First bending part coordinates with the air inlet of the driving end of enclosure vent ditch，Second bending part coordinates with the air outlet of the non-transmision end of enclosure vent ditch，Inner air and outer air in the air cavity of end is intercepted and opens by inner and outer air paths baffle plate，Form the interior ventilating duct ventilated for internal gas flow and the separate ventilation road of external agency ventilation，Carry out in making the heat transfer process of cooling twice medium and the cooling medium air duct in the middle part of casing.
Further, described interior ventilating duct and separate ventilation road are spaced apart.
Further, described interior ventilating duct is the ratio decision being accounted for total losses by rotor loss with the width in separate ventilation road.
Further, stator loss account for than rotor loss total losses ratio big in the case of, described interior ventilating duct is different from the width in separate ventilation road, if the stationary part loss ratio rotor portion loss of motor is big, the caloric value being stationary part is big, therefore the width in separate ventilation road is more than the width of interior ventilating duct, it is ensured that in the case of properly increasing the cooling effect of internal flow, moreover it is possible to meet the cooling effect needed for stationary part.
The invention also discloses a kind of method of ventilation by the loss ratio inside and outside cooling medium consumption of distribution, according to above-mentioned structure improve motor inner and outer air paths baffle plate shape and with the fit system of casing, ventilating duct and separate ventilation road in being formed.
Further, described interior ventilating duct is as the part circulating path of internal gas flow, and separate ventilation road is used for outer medium forced ventilation, hence in so that inner air strengthens the cooling capacity of self by means of the big cooling ratio of extraneous air.
Aeration structure described in the utility model has the effect that the loss accounting according to different elements compared with existing structure, regulation casing and the structure of baffle plate, regulate inside and outside air duct accounts for wide ratio, increase the indirect heat exchange area of interior cooling medium outside, heat by means of interior cooling medium outside exchanges, indirectly enhance the heat-exchange capacity of internal cooling medium and inner member, i.e. enhance the heat-sinking capability of each element of rotor portion, the motor overall radial temperature difference is reduced, improves motor service life.
Accompanying drawing explanation
Fig. 1, the inner and outer air paths baffle arrangement schematic diagram of original motor；
Fig. 2, motor inner and outer air paths baffle arrangement schematic diagram in this utility model；
Fig. 3, enclosure vent ditch and baffle fit structural representation in this utility model；
Fig. 4 a, schematic diagram before partition part circumferencial direction accounting optimizes inside and outside baffle plate in this utility model；
Fig. 4 b, schematic diagram after partition part circumferencial direction accounting optimizes inside and outside baffle plate in this utility model；
Fig. 5 a, design sketch before ventilating duct circumferencial direction accounting optimizes inside and outside casing in this utility model；
Fig. 5 b, design sketch after ventilating duct circumferencial direction accounting optimizes inside and outside casing in this utility model；
Description of reference numerals:
1-the first baffle plate, 101-the first bending part,
2-second baffle, 201-the second bending part, 201'-the second bending part
Ventilating duct in 3-, 4-separate ventilation road, 5-casing,
6-separate ventilation road air outlet, 7-is interior air duct width in terms of motor end face
6'-separate ventilation road air outlet width optimum results, 7'-is interior air duct width optimum results in terms of motor end face.
Detailed description of the invention
Below in conjunction with embodiment and referring to the drawings this utility model is further described.
Refer to Fig. 1.Fig. 1 is the inner and outer air paths baffle arrangement schematic diagram of original motor.The feature that inner and outer air paths baffle plate common shown in Fig. 1 is slotted by this utility model according to enclosure vent ditch, and combine the mode of interior outer air duct distribution so that it is structure optimization becomes structure shown in Fig. 2, is placed in the ventilating duct two ends that casing inner stator is formed.For separate ventilation road, driving end air intake, non-transmision end air-out.Major part motor is all the separate ventilation ditch being entirely used to cool down stationary part in casing, and this scheme is that the half chamber of distribution separate ventilation ditch gives internal flow, the cooling capacity of fluid in can optimizing by the cooling capacity of outer fluid.But in order to improve cooling effectiveness, preferably based on caloric value different change exogenous wind ditch and the width of endogenous wind ditch flexibly of rotor.Concrete scheme is as follows:
nullA kind of aeration structure by the loss inside and outside cooling medium consumption of ratio distribution，The air duct formed by some fins it is provided with in the casing 5 of motor，The inner and outer air paths baffle plate (fiting effect is as shown in Figure 3) coordinated with fin is also included in casing 5，Inner and outer air paths baffle plate includes the first baffle plate 1 and second baffle 2，Wherein，First baffle plate 1 and second baffle 2 are annular，First baffle plate 1 is provided with some first bending parts 101，Second baffle 2 is provided with some second bending parts 201 corresponding with the first bending part 101 width，First bending part 101 coordinates with the air inlet of the driving end of enclosure vent ditch，Second bending part 201 coordinates with the air outlet of the non-transmision end of enclosure vent ditch，Inner air and outer air in the air cavity of end is intercepted and opens by inner and outer air paths baffle plate，Form the interior ventilating duct 3 ventilated for internal gas flow and the separate ventilation road 4 of external agency ventilation，By the barrier effect of fin，The circulation path making cooling medium changes，The general layout that in being formed, outer air duct is spaced apart.Carry out in making the heat transfer process of cooling twice medium and the cooling medium air duct in the middle part of casing 5.
In the present embodiment, described interior ventilating duct 3 and separate ventilation road 4 are spaced apart.
Refer to Fig. 4 a, Fig. 4 b, Fig. 5 a, Fig. 5 b.Described interior ventilating duct 3 is the ratio decision being accounted for total losses by rotor loss with the width in separate ventilation road 4.Due to generally, the ratio that the loss that electric machine rotor produces accounts for total losses is different, therefore the heat produced is the most different, according to this ratio, can by the separate ventilation road air outlet 6 in regulation casing 5 and in terms of motor end face interior air duct width 7 and baffle plate bending part the most in a circumferential direction account for wide ratio, obtain structure shown in figure, the circulation path sectional area making fluid is changed by each several part loss size, the capacity of heat transmission of interior cooling medium outside also can on-demand obtain an equitable breakdown, thus obtain preferable cooling effect, improve the heat transfer efficiency of medium.
Stator loss account for than rotor loss total losses ratio big in the case of, the width in described separate ventilation road 4 is more than the width of interior ventilating duct 3, to improve the cooling effect to stationary part in separate ventilation road 4.
This utility model further relates to a kind of method of ventilation by the loss ratio inside and outside cooling medium consumption of distribution, according to above-mentioned structure improve motor inner and outer air paths baffle plate shape and with the fit system of casing 5, ventilating duct 3 and separate ventilation road 4 in being formed.
In the present embodiment, described interior ventilating duct 3 is as the part circulating path of internal gas flow, and separate ventilation road 4 is for outer medium forced ventilation, hence in so that inner air strengthens the cooling capacity of self by means of the big cooling ratio of extraneous air.
The above is only preferred implementation of the present utility model, is not intended to limit；Should be understood that, although this utility model being described in detail with reference to the various embodiments described above, it will be understood by those within the art that, the technical scheme described in the various embodiments described above still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments and replacement, do not make the essence of corresponding technical scheme depart from the scope of this utility model each embodiment technical scheme.
Claims (3)
- null1. the aeration structure by the loss inside and outside cooling medium consumption of ratio distribution，It is characterized in that，The air duct formed by some fins it is provided with in the casing of motor，The inner and outer air paths baffle plate coordinated with fin is also included in casing，Inner and outer air paths baffle plate includes the first baffle plate and second baffle，Wherein，First baffle plate and second baffle are annular，First baffle plate is provided with some first bending parts，Second baffle is provided with some second bending parts corresponding with the first bending part width，First bending part coordinates with the air inlet of the driving end of enclosure vent ditch，Second bending part coordinates with the air outlet of the non-transmision end of enclosure vent ditch，Inner air and outer air in the air cavity of end is intercepted and opens by inner and outer air paths baffle plate，Form the interior ventilating duct ventilated for internal gas flow and the separate ventilation road of external agency ventilation，Carry out in making the heat transfer process of cooling twice medium and the cooling medium air duct in the middle part of casing.
- A kind of aeration structure by the loss inside and outside cooling medium consumption of ratio distribution the most according to claim 1, it is characterised in that described interior ventilating duct and separate ventilation road are spaced apart.
- A kind of aeration structure by the loss inside and outside cooling medium consumption of ratio distribution the most according to claim 2, it is characterised in that the width in described separate ventilation road is more than the width of interior ventilating duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156169.0U CN205622392U (en) | 2016-03-01 | 2016-03-01 | Distribute but ventilation structure of medium flow of interior separately cooling according to loss ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156169.0U CN205622392U (en) | 2016-03-01 | 2016-03-01 | Distribute but ventilation structure of medium flow of interior separately cooling according to loss ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622392U true CN205622392U (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620156169.0U Expired - Fee Related CN205622392U (en) | 2016-03-01 | 2016-03-01 | Distribute but ventilation structure of medium flow of interior separately cooling according to loss ratio |
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| CN (1) | CN205622392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743268A (en) * | 2016-03-01 | 2016-07-06 | 哈尔滨理工大学 | Ventilating structure and method for distributing flow of internal and external cooling medium based on loss ratio |
-
2016
- 2016-03-01 CN CN201620156169.0U patent/CN205622392U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743268A (en) * | 2016-03-01 | 2016-07-06 | 哈尔滨理工大学 | Ventilating structure and method for distributing flow of internal and external cooling medium based on loss ratio |
| CN105743268B (en) * | 2016-03-01 | 2018-05-29 | 哈尔滨理工大学 | A kind of aeration structure and method by cooling medium consumption inside and outside loss ratio distribution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20180301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |