CN105490438A - Rainwater self-circulation type wiper motor cooling apparatus - Google Patents
Rainwater self-circulation type wiper motor cooling apparatus Download PDFInfo
- Publication number
- CN105490438A CN105490438A CN201510992795.3A CN201510992795A CN105490438A CN 105490438 A CN105490438 A CN 105490438A CN 201510992795 A CN201510992795 A CN 201510992795A CN 105490438 A CN105490438 A CN 105490438A
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- CN
- China
- Prior art keywords
- motor
- water
- electrical machine
- water cover
- rain shaving
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- 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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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof 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
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Abstract
The invention discloses a rainwater self-circulation type wiper motor cooling apparatus and relates to wipers or similar apparatuses. The cooling apparatus comprises a motor water cover with a water inlet and a water outlet, wherein a water channel for rainwater to flow through the surface of a motor is formed in the inner surface of the motor water cover. The water channel structure is smooth in waterway and small in water flow resistance loss; the phenomenon of inconsistent temperatures of three phase windings caused by temperature difference gradient generated on two sides of the water inlet and the water outlet of the motor does not occur, the heat dissipation is relatively uniform, and the temperature gradient is not generated at two ends of the motor; the cooling apparatus is simple in structure, simple and convenient in manufacturing process and easy to machine; and in addition, the cross section of the water channel is set to be in a square shape, a round shape or other proper shapes except the square shape and the round shape, so that the sectional area of a guide groove is enlarged as far as possible and the heat dissipation effect is greatly improved.
Description
Technical field
The present invention relates to wiper or similar device, particularly a kind of rainwater self-circulation type rain shaving electrical machine cooling device.
Background technology
As ensureing the windscreen wiping system for automobile that driver gets a clear view, its safe and reliable operation, directly determines travel safety.Under rainwater operating mode, the long-time full-load run of windscreen wiper system, motor seriously generates heat, if now without good heat radiating measure, easily causes motor ablation, insulation breakdown, causes motor damage, affect travel safety.
Tradition rain shaving electrical machine is motor body and slowing-down structure assembly, and surface directly contacts with air, is natural methods for cooling.Superficial air flowing is current stabilization, belongs to air, metal fever exchanging form, air surface thermal transmission coefficient 0.0242(W/(m DEG C)), radiating effect is poor.When motor operation heating is serious, cannot dispels the heat in time, cannot system safety be ensured.
Summary of the invention
For solving the problem, the present invention proposes a kind of rainwater self-circulation type rain shaving electrical machine cooling device, and its structure is simple, reasonable in design, be convenient to install.
The technical solution adopted in the present invention is: a kind of rainwater self-circulation type rain shaving electrical machine cooling device, comprise drainage part, its technical essential is: also comprise the motor water cover with water inlet and delivery port, and the inner surface of motor water cover is provided with the water channel flowing through rain shaving electrical machine surface for rainwater.
One as rainwater self-circulation type rain shaving electrical machine cooling device of the present invention is improved, and described motor water cover is arranged on the outer surface of rain shaving electrical machine, and the external diameter of motor water cover is slightly less than the external diameter of rain shaving electrical machine, the two interference fit.
Another kind as rainwater self-circulation type rain shaving electrical machine cooling device of the present invention improves, and when motor draw ratio is less than certain threshold value, adopts spiral channel in motor water cover; When motor draw ratio is greater than above-mentioned threshold value, in motor water cover, adopt axial water channel.
As the further improvement of motor water cover inner lead of the present invention, described water channel is spiral channel, be provided with along motor water cover inside diameter hoop direction, from arrival end to the port of export of motor water cover and flow through the spirality tank on motor surface for rainwater, water inlet, the delivery port of tank and motor water cover are connected.
Another kind as motor water cover inner lead of the present invention improves further, described water channel is axial water channel, be axially disposed within motor water cover inner surface along motor water cover, be end to end a few font tank, water inlet, the delivery port of this tank and motor water cover are connected.
As another improvement of rainwater self-circulation type rain shaving electrical machine cooling device of the present invention, the cross section of described water channel is square or circular.
As another improvement of rainwater self-circulation type rain shaving electrical machine cooling device of the present invention, described drainage part is the aqueduct be communicated with windscreen grid, and this aqueduct is plugged in the water inlet of motor water cover.
Advantage of the present invention and beneficial effect are: this rainwater self-circulation type rain shaving electrical machine cooling device, comprise the motor water cover with water inlet and delivery port, the inner surface of motor water cover is provided with the water channel flowing through motor surface for rainwater, and the water route of this channel structure is level and smooth, and resistance to water-flow loss is little; There will not be the phenomenon causing measuring temperature of three-phase winding inconsistent because motor intake-outlet both sides occur temperature gradient, heat radiation is relatively more even, and can not produce temperature gradient at motor two ends, its structure is simple, and manufacturing process is easy, easily processes.Be square additionally by the cross section arranging water channel or other applicable shapes circular or except above-mentioned shape, increase guide groove sectional area as much as possible, make again radiating effect obtain arriving very much raising.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, also can obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is rain shaving electrical machine of the present invention and motor water cover structure schematic diagram;
Fig. 2 is the spiral channel structural representation of motor water cover of the present invention;
Fig. 3 is the axial channel structure schematic diagram of motor water cover of the present invention;
Fig. 4 is the passage cross section structural representation of motor water cover of the present invention, and wherein (a) is square-section schematic diagram; B () is circular cross-section schematic diagram;
In figure, sequence number is described as follows: 1 rain shaving electrical machine, 2 aqueducts, 3 water inlets, 4 motor water covers, 5 water channels, 6 delivery ports, 7 spiral channels, 8 axial water channels.
Embodiment
Below in conjunction with accompanying drawing 1 ~ 4 and embodiment, the present invention is elaborated, below describe only exemplarily and explain, any pro forma restriction is not done to the present invention.
Embodiment 1:
The rainwater self-circulation type rain shaving electrical machine cooling device that the present embodiment adopts, comprises drainage part and the motor water cover 4 with water inlet 3 and delivery port 6, and the inner surface of motor water cover 4 is provided with the water channel 5 flowing through rain shaving electrical machine 1 surface for rainwater.The cross section of water channel 5 is square or circular or can other shape of increasing heat radiation area.
Drainage part is the aqueduct 2 be communicated with windscreen grid, and this aqueduct 2 is plugged in the water inlet of motor water cover 4.
Motor water cover 4 is arranged on the outer surface of rain shaving electrical machine 1, and the external diameter of motor water cover 4 is slightly less than the external diameter of rain shaving electrical machine 1, the two interference fit.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is: select water channel according to motor draw ratio.It is 2 that the present embodiment arranges threshold value, when motor draw ratio is less than 2, adopts spiral channel 7 in motor water cover; Under motor draw ratio is greater than 2 situations, in motor water cover, adopt axial water channel 8.
Water channel 5 is spiral channel 7, is provided with flows through the spirality tank on rain shaving electrical machine 1 surface for rainwater along motor water cover 4 inside diameter hoop direction, from arrival end to the port of export of motor water cover 4, and water inlet, the delivery port of tank and motor water cover 4 are connected.This form water route is level and smooth, and resistance to water-flow loss is little, there will not be the phenomenon causing measuring temperature of three-phase winding inconsistent because motor intake-outlet both sides occur temperature gradient.
Water channel 5 is axial water channel 8, is axially disposed within motor water cover inner surface, is end to end a few font tank along motor water cover 4, and water inlet, the delivery port of this tank and motor water cover 4 are connected.The heat radiation of this form is relatively more even, can not produce temperature gradient at motor two ends; Structure is simple, and manufacturing process is easy, easily processes.
Although the foregoing describe the specific embodiment of the present invention, the those skilled in the art in this area should be appreciated that these only illustrate, can make various changes or modifications, and do not deviate from principle of the present invention and essence to these execution modes.Scope of the present invention is only defined by the appended claims.
Claims (7)
1. a rainwater self-circulation type rain shaving electrical machine cooling device, comprises drainage part, it is characterized in that: also comprise the motor water cover with water inlet and delivery port, and the inner surface of motor water cover is provided with the water channel flowing through rain shaving electrical machine surface for rainwater.
2. rainwater self-circulation type rain shaving electrical machine cooling device as claimed in claim 1, is characterized in that: described motor water cover is arranged on the outer surface of rain shaving electrical machine, and the external diameter of motor water cover is slightly less than the external diameter of rain shaving electrical machine, the two interference fit.
3. rainwater self-circulation type rain shaving electrical machine cooling device as claimed in claim 1, is characterized in that: when motor draw ratio is less than certain threshold value, adopts spiral channel in motor water cover; When motor draw ratio is greater than above-mentioned threshold value, in motor water cover, adopt axial water channel.
4. rainwater self-circulation type rain shaving electrical machine cooling device as claimed in claim 3, it is characterized in that: described water channel is spiral channel, be provided with along motor water cover inside diameter hoop direction, from arrival end to the port of export of motor water cover and flow through the spirality tank on motor surface for rainwater, water inlet, the delivery port of tank and motor water cover are connected.
5. rainwater self-circulation type rain shaving electrical machine cooling device as claimed in claim 3, it is characterized in that: described water channel is axial water channel, be axially disposed within motor water cover inner surface along motor water cover, be end to end a few font tank, water inlet, the delivery port of this tank and motor water cover are connected.
6. the rainwater self-circulation type rain shaving electrical machine cooling device as described in claim as arbitrary in Claims 1 to 5, is characterized in that: the cross section of described water channel is square or circular.
7. rainwater self-circulation type rain shaving electrical machine cooling device as claimed in claim 1, is characterized in that: described drainage part is the aqueduct be communicated with windscreen grid, and this aqueduct is plugged in the water inlet of motor water cover.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510992795.3A CN105490438B (en) | 2015-12-28 | 2015-12-28 | A kind of rainwater self-circulation type rain shaving electrical machine cooling device |
Applications Claiming Priority (1)
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CN201510992795.3A CN105490438B (en) | 2015-12-28 | 2015-12-28 | A kind of rainwater self-circulation type rain shaving electrical machine cooling device |
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CN105490438A true CN105490438A (en) | 2016-04-13 |
CN105490438B CN105490438B (en) | 2017-11-24 |
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CN201510992795.3A Expired - Fee Related CN105490438B (en) | 2015-12-28 | 2015-12-28 | A kind of rainwater self-circulation type rain shaving electrical machine cooling device |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106838051A (en) * | 2017-04-14 | 2017-06-13 | 广德县辉达电器有限公司 | A kind of radiating dustproof electromagnetic clutch |
CN107630834A (en) * | 2016-07-19 | 2018-01-26 | 现代自动车株式会社 | Device for cooling pump motor |
CN112523975A (en) * | 2020-12-04 | 2021-03-19 | 绍兴文理学院 | Novel cooling device for wind driven generator |
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CN202679133U (en) * | 2012-08-05 | 2013-01-16 | 宁波华元机械科技有限公司 | Water cooling structure for motor shell |
CN202737644U (en) * | 2012-08-08 | 2013-02-13 | 南车株洲电机有限公司 | Water-cooling casing and motor |
CN103401346A (en) * | 2013-08-08 | 2013-11-20 | 安徽巨一自动化装备有限公司 | Cooling water channel structure of water-cooling permanent magnet synchronous motor of electric vehicle |
JP2015020458A (en) * | 2013-07-16 | 2015-02-02 | カルソニックカンセイ株式会社 | Wiper device |
CN205336019U (en) * | 2015-12-28 | 2016-06-22 | 华晨汽车集团控股有限公司 | Rainwater self -loopa formula windscreen wiper electric machine cooling system |
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2015
- 2015-12-28 CN CN201510992795.3A patent/CN105490438B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN202679133U (en) * | 2012-08-05 | 2013-01-16 | 宁波华元机械科技有限公司 | Water cooling structure for motor shell |
CN202737644U (en) * | 2012-08-08 | 2013-02-13 | 南车株洲电机有限公司 | Water-cooling casing and motor |
JP2015020458A (en) * | 2013-07-16 | 2015-02-02 | カルソニックカンセイ株式会社 | Wiper device |
CN103401346A (en) * | 2013-08-08 | 2013-11-20 | 安徽巨一自动化装备有限公司 | Cooling water channel structure of water-cooling permanent magnet synchronous motor of electric vehicle |
CN205336019U (en) * | 2015-12-28 | 2016-06-22 | 华晨汽车集团控股有限公司 | Rainwater self -loopa formula windscreen wiper electric machine cooling system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107630834A (en) * | 2016-07-19 | 2018-01-26 | 现代自动车株式会社 | Device for cooling pump motor |
CN106838051A (en) * | 2017-04-14 | 2017-06-13 | 广德县辉达电器有限公司 | A kind of radiating dustproof electromagnetic clutch |
CN112523975A (en) * | 2020-12-04 | 2021-03-19 | 绍兴文理学院 | Novel cooling device for wind driven generator |
CN112523975B (en) * | 2020-12-04 | 2021-11-23 | 绍兴文理学院 | Novel cooling device for wind driven generator |
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CN105490438B (en) | 2017-11-24 |
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