CN202197174U - Closed type water-cooled motor - Google Patents
Closed type water-cooled motor Download PDFInfo
- Publication number
- CN202197174U CN202197174U CN2011203223342U CN201120322334U CN202197174U CN 202197174 U CN202197174 U CN 202197174U CN 2011203223342 U CN2011203223342 U CN 2011203223342U CN 201120322334 U CN201120322334 U CN 201120322334U CN 202197174 U CN202197174 U CN 202197174U
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- rotor
- motor
- groove
- shell
- cooled motor
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Abstract
The utility model discloses a closed type water-cooled motor, which comprises a casing provided with a water cooled channel, a stator fixed in the casing, a rotor arranged in the casing and a motor shaft which is arranged on the casing through a pair of bearings and connected with the rotor. A rotor through hole is arranged on the rotor, the setting direction of the rotor through hole is parallel to or approximately parallel to the axial direction of the motor shaft, a through groove is arranged in the casing, the setting direction of the through groove is parallel to or approximately parallel to the axial direction of the motor shaft, and the through groove and the rotor through hole form a circulation loop in the casing. By adopting the technical scheme, when in work, the closed type water-cooled motor can effectively reduce the temperature of each part in the motor, improves operating conditions of the bearings and insulation materials, and prevents the bearings and the insulation materials from being burned out, thereby greatly prolonging service life of the whole closed type water-cooled motor.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to a kind of closed water-cooled motor.
Background technology
Motor is commonly called as electricity " motor ", is meant a kind of energy conversion equipment that converts electrical energy into mechanical energy according to the law of electromagnetic induction.Its main effect is to change electric energy into mechanical energy, as the power source of various electrical equipment and mechanical movement.
Fig. 1 has shown the structure diagram of present closed water-cooled motor.As shown in Figure 1, stator 2 is fixed in the shell 1; Rotor 3 is located in the middle of the stator 2, and has the gap with stator 2; Motor shaft 4 is installed in the shell 1 through pair of bearings 7, and is fixedly connected with rotor 3; Two corresponding respectively ends of being located at rotor 3 of centrifugal fan 6; Also be provided with water-cooling channel 5 on the housing of shell 1.
The power of the output when work of the high-power closed water-cooled motor with said structure is big; Also produce simultaneously a large amount of heat energy in the course of the work; When especially under hot conditions, working; Although be provided with centrifugal fan 6 and water-cooling channel 5, this motor can generate heat and cause each part temperatures rising in the motor rapidly.This is because the enclosed motor inner space is narrow and small; Air in the end cap at motor two ends and two parts space between the rotor can not form effective convection current; Thereby make and carry out the heat exchange deficiency, and then cause the heat accumulation of motor internal more, make the interior temperature of motor raise through shell 1 and water-cooling channel 5; Thereby the condition of work that causes insulating material, bearing etc. is abominable even burn, and causes electrical machinery life to shorten.
Summary of the invention
The purpose of the utility model provides a kind of closed water-cooled motor; This motor is through being provided with through hole respectively on stator and rotor; Make rotor when high speed rotating, the air in the end cap at motor two ends and two parts space between the rotor can form convection current effectively, reduces the temperature of motor interior; Improve the condition of work of bearing lubrication and insulating material, prolong the useful life of motor.
According to the foregoing invention purpose, the utility model provides a kind of closed water-cooled motor, it comprises: a shell which is provided with water-cooling channel; One is fixed on the interior stator and of said shell is located at the rotor in the said shell; One motor shaft is located in the said shell through pair of bearings, and is connected with said rotor; Said rotor is provided with the rotor through hole, said rotor through hole that direction is set is parallel or substantially parallel with the axial direction of motor shaft; In addition:
Be provided with groove in the said shell, said groove that direction is set is parallel or substantially parallel with the axial direction of motor shaft, said groove and rotor through hole form circulation circuit in said shell.
The described closed water-cooled motor of the utility model is through adopting technique scheme; Make groove and rotor through hole in motor housing, form circulation circuit; Thereby make rotor when high speed rotating, the end cap at motor two ends and the gas of being located in two spaces that form between stator and the rotor at motor middle part can carry out effective convection current through groove and rotor through hole, the raising convection transfer rate; Can rapidly the heat that produces in the motor course of work be transmitted to shell; Through the cooling water in the water-cooling channel on the shell heat is taken away again, thus the temperature of reduction motor internal, the life-span of prolongation motor.
Alternatively, said groove is opened on the inner surface of said shell.
Alternatively, said groove is opened on the said stator.
Alternatively, said groove is located between the inner surface and stator of said shell.
Preferably, said groove or rotor through hole are respectively equipped with several, to improve cooling efficient.
Preferably, above-mentioned closed water-cooled motor also comprises two fans, and its corresponding respectively two ends of being located at said rotor are with the gas flow in two spaces that form between the end cap of realizing the motor two ends easily and stator and the rotor be located in the middle part of the motor.Said two fans can all be set to aerofoil fan, also can be set to aerofoil fan with one, and another is set to centrifugal fan.Be set to centrifugal fan when one, when another is set to aerofoil fan, aerofoil fan and centrifugal fan be used the reasonable distribution that can carry out flow, pressure reduction easily, reach better cooling effect.
Alternatively, above-mentioned closed water-cooled motor also comprises a fan, and it is located at arbitrary end of said rotor.A said fan can also can be centrifugal fan for aerofoil fan.
The described closed water-cooled motor of the utility model is owing to adopted technique scheme; Make it in the powerful while of output; Can effectively reduce the motor internal temperature, reduce the working temperature of motor bearings and insulating material, thereby improve the lubricating condition of bearing; The situation of having avoided bearing and insulating material to burn, and then prolonged life-span of motor greatly.The described closed water-cooled motor of the utility model can effectively reduce the temperature about 10-20 ℃ than prior motor.
Description of drawings
Fig. 1 has shown the structure of existing closed water-cooled motor.
Fig. 2 is the described closed water-cooled motor of a utility model structural representation in one embodiment.
Embodiment
To combine Figure of description and concrete embodiment that the described closed water-cooled motor of the utility model is done further detailed description below.
Fig. 2 has shown the described closed water-cooled machine of the utility model structure in the present embodiment.As shown in Figure 2, stator 22 is fixed in the shell 21; Rotor 23 be located in the middle of the stator 22 and and rotor 23 between have the gap; Motor shaft 24 is fixedly connected with rotor 23, and is supported by the pair of bearings 27 that is arranged on the shell 21; Wherein, rotor 23 is provided with rotor through hole 29, this rotor through hole 29 that direction is set is also parallel or substantially parallel with the axial direction of motor shaft 24; Stator 22 be provided with groove (or through hole 028, groove 28 that direction is set is parallel or substantially parallel with the axial direction of motor shaft 24, groove 28 has formed the circulation of air flow loop with rotor through hole 29 in shell 21; The corresponding respectively two ends of being located at rotor 23 of two fans 261,262, these two fans 261,262 can all be aerofoil fans, also can one be aerofoil fan, another is a centrifugal fan.Sometimes for the needs of structure, also can a fan 261 (or 262) be set an end at rotor 23, this moment, this fan both can be an aerofoil fan, also can be centrifugal fan.The housing of shell 21 is provided with water-cooling channel 25, is used for carrying out heat exchange with the external world.
Need to prove; Though in the present embodiment, groove 28 is to be opened on the stator 22, in the present technique scheme; Groove is not limited to only be opened on the stator 22; As long as groove and rotor through hole 29 (being in the motor cavity) in the enclosure form the circulation of air flow loop, groove can also be opened on the inner surface of shell 21, can be located in addition between shell 21 and the stator 22.
Please continue to consult Fig. 2, groove 28 and rotor through hole 29 make the two ends chamber P conducting that two end caps of motor and stator 22 that is positioned at the motor middle part and rotor 23 form.When rotor 23 high speed rotating, under the effect of the fan 261,262 at rotor 23 two ends, the air-flows in two chamber P form effective convection current, form convection current wind path Q.Reach the purpose of the temperature that reduces motor internal.
Above-mentioned groove 28 or rotor through hole 29 also can be respectively equipped with several, improve cooling efficient thereby can strengthen the cross-ventilation amount like this.
In the present technique scheme; Large-area cross-ventilation can be rapidly be transmitted to shell 21 with the heat of motor internal; Thereby effectively reduce the motor internal temperature,, also can not cause damage to motor because of insulating material and the overheated of bearing 27 even make motor under the high power work state.
The inventor is through evidence, and the described closed water-cooled machine of present technique scheme can effectively reduce the temperature about 10～20 ℃ than existing closed water-cooled machine when work.
Be noted that the above specific embodiment of enumerating that is merely the utility model, obviously the utility model is not limited to above embodiment, and many similar variations are arranged thereupon.If those skilled in the art from all distortion that the disclosed content of the utility model directly derives or associates, all should belong to the protection range of the utility model.
Claims (10)
1. closed water-cooled motor, it comprises: a shell which is provided with water-cooling channel; One is fixed on the interior stator and of said shell is located at the rotor in the said shell; One motor shaft is located in the said shell through pair of bearings, and is connected with said rotor; Said rotor is provided with the rotor through hole, said rotor through hole that direction is set is parallel or substantially parallel with the axial direction of motor shaft; It is characterized in that: be provided with groove in the said shell, said groove that direction is set is parallel or substantially parallel with the axial direction of motor shaft, said groove and rotor through hole form circulation circuit in said shell.
2. closed water-cooled motor as claimed in claim 1 is characterized in that said groove is opened on the inner surface of said shell.
3. closed water-cooled motor as claimed in claim 1 is characterized in that said groove is opened on the said stator.
4. closed water-cooled motor as claimed in claim 1 is characterized in that, said groove is located between the inner surface and stator of said shell.
5. closed water-cooled motor as claimed in claim 1 is characterized in that, said groove or rotor through hole are respectively equipped with several.
6. like any described closed water-cooled motor among the claim 1-5, it is characterized in that, also comprise: two fans, its corresponding respectively two ends of being located at said rotor.
7. like any described closed water-cooled motor among the claim 1-5, it is characterized in that also comprise: a fan, it is located at arbitrary end of said rotor.
8. closed water-cooled motor as claimed in claim 6 is characterized in that, said two fans are aerofoil fan.
9. closed water-cooled motor as claimed in claim 6 is characterized in that, one in said two fans are aerofoil fan, and another is a centrifugal fan.
10. closed water-cooled motor as claimed in claim 7 is characterized in that, a said fan is aerofoil fan or centrifugal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203223342U CN202197174U (en) | 2011-08-30 | 2011-08-30 | Closed type water-cooled motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203223342U CN202197174U (en) | 2011-08-30 | 2011-08-30 | Closed type water-cooled motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202197174U true CN202197174U (en) | 2012-04-18 |
Family
ID=45952073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203223342U Expired - Fee Related CN202197174U (en) | 2011-08-30 | 2011-08-30 | Closed type water-cooled motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202197174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219832A (en) * | 2013-04-01 | 2013-07-24 | 常州格力博有限公司 | Brushless electric circular saw |
| CN106357037A (en) * | 2016-10-09 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and motor |
-
2011
- 2011-08-30 CN CN2011203223342U patent/CN202197174U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219832A (en) * | 2013-04-01 | 2013-07-24 | 常州格力博有限公司 | Brushless electric circular saw |
| CN106357037A (en) * | 2016-10-09 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and motor |
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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: 20120418 Termination date: 20150830 |
|
| EXPY | Termination of patent right or utility model |