CN204089481U - A kind of heat-dissipating cover plate - Google Patents
A kind of heat-dissipating cover plate Download PDFInfo
- Publication number
- CN204089481U CN204089481U CN201420590765.0U CN201420590765U CN204089481U CN 204089481 U CN204089481 U CN 204089481U CN 201420590765 U CN201420590765 U CN 201420590765U CN 204089481 U CN204089481 U CN 204089481U
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- China
- Prior art keywords
- heat
- cover plate
- dissipating cover
- motor
- drops
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Abstract
The utility model provides a kind of heat-dissipating cover plate, this utility model comprises: heat-dissipating cover plate body (2), and the flow perturbation thing that the inwall of the first installation portion (4), the bent area (41) being arranged on the first installation portion, the second installation portion (5), the bent area (51) being arranged on the second installation portion, body (2) is arranged is drops projection (1).Being staggered between drops projection row and row to impel the cooling blast between heat-dissipating cover plate and heater element to form whirlpool, extends the heat radiation gap flowing time of cooling blast between heat-dissipating cover plate and heater element, improves the radiating efficiency of heater element.
Description
Technical field
The utility model relates to a kind of heat-dissipating cover plate, particularly a kind of heat-dissipating cover plate being exclusively used in motor heat dissipation.
Background technology
Motor is a kind of conventional rotary electric machine electric energy conversion being become mechanical energy, is widely used in the various aspects in modern society's life.Motor, in use due to the existence of various loss, makes its temperature constantly raise, if the heat-sinking capability of motor is poor, then can affects the normal work and use life-span of motor, also can threaten the life security of operator time serious.Therefore, motor is cooled very important.
At present, the type of cooling of motor mainly contains self cool, from fan cooling and forcing functions three kinds.Self cool is without any servicing unit, and rely on the flowing cool motors that outside air is spontaneous completely, radiating efficiency is not high, is applicable to small-sized motor; Install fan additional on motor side from fan cooling, the artificial heat radiation accelerating the flow faster motor of surrounding motors air, good heat dissipation effect and structure are simply easy to realize; Forcing functions is generally only used in large-size machine, and be electric motor temperature reduction by cooling fluid (be generally oily medium, use aqueous medium individually), radiating efficiency is high but system is comparatively complicated, is generally only applied to high capacity motor.
In industrial motor, comparatively extensive from fan cooling application, surrounding air directly enters motor interior and cools, and motor heat is directly taken away and is discharged in the environment of surrounding by cold air.Air mainly contains axially at the track route of motor interior, radial and axially and radial compound ventilate three kinds.Comparatively conventional is that namely cold air enters from motor one end, discharges from other one end axially from fanning cooling at present.As long as one end can fill larger-diameter fan, just good cooling effect can be obtained.Shortcoming is that draft loss is comparatively large, along motor reel to temperature distributing disproportionation even, therefore conventional solution installs heat-dissipating cover plate in fan periphery, effectively can cool hot-air, be dispersed in air by the heat of motor.The heat-dissipating cover plate installed additional outside motor body can guide the flow direction of fan air on the one hand, can improve the overall radiating efficiency of motor on the other hand to the hot-air heat radiation of the heat absorption of inflow motor.Although improve the body profile of motor, do not improve for heat-dissipating cover plate, the heat-sinking capability of heat-dissipating cover plate improves space in addition further.
Utility model content
For improving the heat radiation power of motor heat dissipation cover plate further, improve the service behaviour of motor, the utility model provides a kind of heat-dissipating cover plate, and the processing of this heat sinking cover plate is simple, radiating effect is obvious, is applicable to major part from fanning cool motors.
For achieving the above object, a kind of heat-dissipating cover plate that the utility model provides, this heat-dissipating cover plate is arranged on the periphery of cooling device and heater element, and heat-dissipating cover plate and cooling device and heater element form gap of dispelling the heat, and this heat-dissipating cover plate comprises:
Body;
Installation portion, comprises the first installation portion and the second installation portion, is separately positioned on the both sides of described body, described first installation portion and the second installation portion is provided with the bent area for interfixing with other things;
Flow perturbation thing, is arranged on the inwall of described body, and stretches in described heat radiation gap, and cooling-air enters in described heat radiation gap under the effect of flow perturbation thing, forms air flow swirl district.
Further, described flow perturbation thing is multiple projections be positioned in described inner body wall, can promote that the cooling blast between heat-dissipating cover plate and heater element forms whirlpool district, increase the residence time of cooling-air in heat radiation gap, the heat of the more effective absorption hot-air of heat-dissipating cover plate can be made again simultaneously, improve the heat dissipation capacity of heat-dissipating cover plate, thus improve the radiating efficiency of heater element.
Further, described projection is staggered layout, can extend the heat radiation gap flowing time of cooling blast between heat-dissipating cover plate and heater element, improves the radiating efficiency of heater element further.
Further, the outer wall of described body arranges multiple depression, each depression and raised position one_to_one corresponding, be convenient to machine-shaping.
Further, described depression and projection are drops, to make the cooling blast between heat-dissipating cover plate and heater element better form whirlpool, extend the heat radiation gap flowing time of cooling blast between heat-dissipating cover plate and heater element further, thus improve the radiating efficiency of heater element.
Further, the density of described projection is 15 ~ 20/dm
2.
Further, the density of described projection is 18/dm
2.
Further, this heat-dissipating cover plate is metallic article or plastic products, its low cost of manufacture.
The utility model beneficial effect: a kind of heat-dissipating cover plate that the utility model provides, the drops projection that this heat-dissipating cover plate inwall is arranged can promote that between heat-dissipating cover plate and heater element, cooling blast forms whirlpool district, increase the residence time of cooling-air in heat radiation gap, the heat of the more effective absorption hot-air of heat-dissipating cover plate can be made again simultaneously, improve the heat dissipation capacity of heat-dissipating cover plate, thus improve the radiating efficiency of heater element, and be staggered between drops projection row and row, the heat radiation gap flowing time of cooling blast between heat-dissipating cover plate and cooling element can be extended, the radiating efficiency of further raising cooling element.
Accompanying drawing explanation
Fig. 1 is shaft side figure such as just grade of the present utility model;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is sectional view of the present utility model;
Fig. 4 be in the utility model heat-dissipating cover plate and motor assemble after front view.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further detailed.
Embodiment one
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of heat-dissipating cover plate comprises: body 2, first installation portion 4, be arranged on bent area 41, second installation portion 5 of the first installation portion, the bent area 51 being arranged on the second installation portion, flow perturbation thing that the inwall of body 2 is arranged be drops projection 1, protruding 1 density of drops is 18/dm
2, body 2 outer surface forms corresponding drops concave surface, is staggered between protruding 1 row of drops and row.The drops projection 1 that body 2 inwall is arranged can promote that between heat-dissipating cover plate body 2 and motor 3, cooling blast forms whirlpool district, improves the radiating efficiency of motor 3.Be staggered between protruding 1 row of the drops that body 2 inwall is arranged and row, the heat radiation gap flowing time of cold gas between heat-dissipating cover plate body 2 and motor 3 between heat-dissipating cover plate body 2 and motor 3 can be extended, improve the radiating efficiency of motor further.
Below the contrast test of heat-dissipating cover plate to motor heat dissipation effect:
Description of test:
2 the motor models used in experiment are 665BM7046C4-CF+T13E; In experiment, each heat-dissipating cover plate is made by same metal; Indoor temperature is 28.3 DEG C.
Experimental principle and step:
Use infrared ray thermal inductance instrument to detect the organism temperature of motor under rated power work, the heat-dissipating cover plate of the different patterns that infrared ray thermal inductance becomes, is specially:
The heat-dissipating cover plate body of No. 1 motor does not arrange projection;
The heat-dissipating cover plate inner body wall of No. 2 motor is provided with drops projection, and heat-dissipating cover plate outer surface forms corresponding drops concave surface, and arrange with alternative form between drops projection row and row, its density is 18/dm
2;
Motor works under nominal power, within every 5 minutes, records once the temperature of each motor.
Experimental result:
After motor work 1h, the organism temperature of 2 motor is basicly stable, is below the stable machine temperature of 2 motor:
As can be seen here: motor heat dissipation cover board body inwall be provided with drops protruding time obviously better than radiating effect when not arranging drops projection, be staggered between the drops projection row that heat-dissipating cover plate inner body wall is arranged in this experiment and row, density is 18/dm
2, the machine temperature drop of motor can be made to 69 DEG C ~ 72 DEG C, reach and improve motor heat dissipation power object.
Embodiment two
The present embodiment and embodiment one difference are that the drops density of protrusions that heating panel body is arranged is 9/dm
2, accordingly at heat-dissipating cover plate in the contrast test of motor heat dissipation effect, No. 1 motor arranges constant, and No. 2 motor drops density of protrusions are 9/dm
2, experimental result is as follows:
As can be seen here: be staggered between the drops projection row that heat-dissipating cover plate inner body wall is arranged and row, density is 9/dm
2time, the machine temperature drop of motor can be made to 78 DEG C ~ 84 DEG C, reach and improve motor heat dissipation power object, but compared with embodiment one, drops density of protrusions is 9/dm
2time be 18/dm than its density
2heat-sinking capability low.
Embodiment three
The present embodiment and embodiment one difference are that the drops density of protrusions that heating panel body is arranged is 27/dm
2, accordingly at heat-dissipating cover plate in the contrast test of motor heat dissipation effect, No. 1 motor arranges constant, and No. 2 motor drops density of protrusions are 27/dm
2, experimental result is as follows:
As can be seen here: be staggered between the drops projection row that heat-dissipating cover plate inner body wall is arranged and row, density is 27/dm
2time, the machine temperature drop of motor can be made to 76 DEG C ~ 83 DEG C, reach and improve motor heat dissipation power object, but compared with embodiment one, drops density of protrusions is 27/dm
2time be 18/dm than its density
2heat-sinking capability low.
Embodiment four
The present embodiment and embodiment one difference are that the drops projection that heating panel body is arranged is gone and random alignment between row, and drops density of protrusions is 9/dm
2, accordingly at heat-dissipating cover plate in the contrast test of motor heat dissipation effect, No. 1 motor arranges constant, random alignment between No. 2 motor drops projection row and row, and drops density of protrusions is 9/dm
2, experimental result is as follows:
As can be seen here: random alignment between the drops projection row that heat-dissipating cover plate inner body wall is arranged and row, density is 9/dm
2time, the machine temperature drop of motor can be made to 85 DEG C ~ 90 DEG C, reach and improve motor heat dissipation power object.Compared with embodiment two, drops density of protrusions is 9/dm
2time, be staggered than the good heat dissipation effect of its random alignment between drops projection row and row
Embodiment five
The present embodiment and embodiment one difference are that the drops projection that heating panel body is arranged is gone and random alignment between row, and drops density of protrusions is 18/dm
2, accordingly at heat-dissipating cover plate in the contrast test of motor heat dissipation effect, No. 1 motor arranges constant, random alignment between No. 2 motor drops projection row and row, and drops density of protrusions is 18/dm
2, experimental result is as follows:
As can be seen here: random alignment between the drops projection row that heat-dissipating cover plate inner body wall is arranged and row, density is 18/dm
2time, the machine temperature drop of motor can be made to 75 DEG C ~ 83 DEG C, reach and improve motor heat dissipation power object.Compared with embodiment three, drops density of protrusions is 18/dm
2time, be staggered between drops projection row and row better than the radiating effect of its random alignment.
Embodiment six
The present embodiment and embodiment one difference are that the drops projection that heating panel body is arranged is gone and random alignment between row, and drops density of protrusions is 27/dm
2, accordingly at heat-dissipating cover plate in the contrast test of motor heat dissipation effect, No. 1 motor arranges constant, random alignment between No. 2 motor drops projection row and row, and drops density of protrusions is 27/dm
2, experimental result is as follows:
As can be seen here: random alignment between the drops projection row that heat-dissipating cover plate inner body wall is arranged and row, density is 27/dm
2time, the machine temperature drop of motor can be made to 82 DEG C ~ 88 DEG C, reach and improve motor heat dissipation power object.Compared with embodiment four, drops density of protrusions is 27/dm
2time, be staggered between drops projection row and row better than the radiating effect of its random alignment.
Interpretation:
Heat-dissipating cover plate inner body wall is provided with drops projection, and drops bump array form is for being staggered between row and row, and its density is 18/dm
2time, motor heat dissipation effect is best, can reach 69 DEG C ~ 72 DEG C; The drops projection of random alignment can improve heat radiation but its radiating effect is also not as being staggered between row and row; Drops density of protrusions is too small, can not play good flow-disturbing effect, but density is excessive, can make again coolant cannot proper flow, causes cooling effect poor.Therefore, rational arrangement drops projection put in order and density can effectively improve radiating efficiency 20% ~ 30%, and the form of being staggered is conducive to being formed turbulent flow and whirlpool, and allow turbulent whirlpool is regular to be formed between drops projection, play good radiating effect.
Claims (8)
1. a heat-dissipating cover plate, is characterized in that: this heat-dissipating cover plate is arranged on the periphery of cooling device and heater element, and heat-dissipating cover plate and cooling device and heater element form gap of dispelling the heat, and heat-dissipating cover plate comprises:
Body;
Installation portion, comprises the first installation portion and the second installation portion, is separately positioned on the both sides of described body, described first installation portion and the second installation portion is provided with the bent area for interfixing with other things;
Flow perturbation thing, is arranged on the inwall of described body, and stretches in described heat radiation gap, and cooling-air enters in described heat radiation gap under the effect of flow perturbation thing, forms air flow swirl district.
2. heat-dissipating cover plate as claimed in claim 1, is characterized in that: described flow perturbation thing is multiple projections be positioned in described inner body wall.
3. heat-dissipating cover plate as claimed in claim 2, is characterized in that: described projection is staggered layout.
4. heat-dissipating cover plate as claimed in claim 2 or claim 3, is characterized in that: the outer wall of described body arranges multiple depression, each depression and raised position one_to_one corresponding.
5. heat-dissipating cover plate as claimed in claim 4, is characterized in that: described depression and projection are drops.
6. heat-dissipating cover plate as claimed in claim 5, is characterized in that: the density of described projection is 15 ~ 20/dm
2.
7. heat-dissipating cover plate as claimed in claim 6, is characterized in that: the density of described projection is 18/dm
2.
8. the heat-dissipating cover plate as described in claim 1,2 or 3, is characterized in that: this heat-dissipating cover plate is metallic article or plastic products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420590765.0U CN204089481U (en) | 2014-10-14 | 2014-10-14 | A kind of heat-dissipating cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420590765.0U CN204089481U (en) | 2014-10-14 | 2014-10-14 | A kind of heat-dissipating cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089481U true CN204089481U (en) | 2015-01-07 |
Family
ID=52182149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420590765.0U Expired - Fee Related CN204089481U (en) | 2014-10-14 | 2014-10-14 | A kind of heat-dissipating cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204089481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242555A (en) * | 2014-10-14 | 2014-12-24 | 成都育芽科技有限公司 | Heat radiation cover plate |
| CN111740326A (en) * | 2020-05-22 | 2020-10-02 | 国网河北省电力有限公司石家庄市藁城区供电分公司 | Intelligent power grid equipment box with heat dissipation function |
-
2014
- 2014-10-14 CN CN201420590765.0U patent/CN204089481U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242555A (en) * | 2014-10-14 | 2014-12-24 | 成都育芽科技有限公司 | Heat radiation cover plate |
| CN111740326A (en) * | 2020-05-22 | 2020-10-02 | 国网河北省电力有限公司石家庄市藁城区供电分公司 | Intelligent power grid equipment box with heat dissipation function |
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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: 20150107 Termination date: 20151014 |
|
| EXPY | Termination of patent right or utility model |