CN110838774A - Explosion-proof motor heat abstractor - Google Patents
Explosion-proof motor heat abstractor Download PDFInfo
- Publication number
- CN110838774A CN110838774A CN201911095112.9A CN201911095112A CN110838774A CN 110838774 A CN110838774 A CN 110838774A CN 201911095112 A CN201911095112 A CN 201911095112A CN 110838774 A CN110838774 A CN 110838774A
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- explosion
- proof
- air outlet
- baffling
- Prior art date
- 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.)
- Pending
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- 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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
-
- 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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
An explosion-proof motor heat dissipation device comprises a motor body and an explosion-proof casing arranged on the periphery of the motor body, wherein a fan is arranged on the rear side of the motor body; an air outlet is arranged at the rear side of the fan; flow guide plates are arranged on the upper side and the lower side between the fan and the air outlet; the guide plate consists of a plurality of baffling heat dissipation strips arranged at intervals; one end of the baffling heat dissipation strip is connected with the explosion-proof shell, and the other end of the baffling heat dissipation strip is a free end; an air outlet channel is formed between the guide plates on the upper side and the lower side, and the size of the air outlet channel is smaller than that of the air outlet. On one hand, the heat in the explosion-proof shell can be quickly led into the rear side of the fan and directly blown out by the fan, so that the heat dissipation speed is greatly improved; on the other hand can increase the air output for motor body better cooling, thereby improve the radiating efficiency, extension motor body's life.
Description
Technical Field
The invention relates to an explosion-proof motor, in particular to an explosion-proof motor heat dissipation device.
Background
The explosion-proof shell of most explosion-proof motors is made of cast iron, and cast iron has the defects of heavy weight and poor heat conductivity, but the existing explosion-proof shell is easy to generate a large amount of heat after working for a long time, and sometimes, the explosion phenomenon can occur due to thermal expansion, so that the equipment operation can be influenced, and serious accidents can also be caused. The existing heat dissipation mode is to arrange heat dissipation strips on the wall of the explosion-proof casing to dissipate heat in time. However, the heat dissipation strip only contributes to the heat dissipation of the explosion-proof enclosure, and the heat dissipation effect is general, and the heat dissipation inside the explosion-proof enclosure is basically realized by the fan. The rear side of the existing explosion-proof enclosure is usually provided with a fan cover, and a fan is arranged between the fan cover and the motor body to blow heat inside the explosion-proof enclosure to the outside. However, how to achieve the highest heat dissipation efficiency by using the fan is an urgent technical problem to be solved by the present invention.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the explosion-proof motor heat dissipation device with high heat dissipation speed and high heat dissipation efficiency.
The technical scheme of the invention is as follows: an explosion-proof motor heat dissipation device comprises a motor body and an explosion-proof casing arranged on the periphery of the motor body, wherein a fan is arranged on the rear side of the motor body; an air outlet is arranged at the rear side of the fan; flow guide plates are arranged on the upper side and the lower side between the fan and the air outlet; the guide plate consists of a plurality of baffling heat dissipation strips arranged at intervals; one end of the baffling heat dissipation strip is connected with the explosion-proof shell, and the other end of the baffling heat dissipation strip is a free end; an air outlet channel is formed between the guide plates on the upper side and the lower side, and the size of the air outlet channel is smaller than that of the air outlet.
Furthermore, the baffling heat dissipation strip and the inner wall of the explosion-proof shell are welded into a whole.
Furthermore, the distance between every two adjacent baffling heat dissipation strips is 1-8 mm.
Furthermore, the distance between every two adjacent baffling heat dissipation strips is 2-5 mm.
Furthermore, the baffling heat dissipation strip is of a bending structure and is bent towards the direction of the explosion-proof machine shell.
Furthermore, the material of baffling heat dissipation strip is copper or aluminum alloy.
Furthermore, the end of the baffling heat dissipation strip connected with the explosion-proof machine shell is provided with a heat dissipation plate, and the baffling heat dissipation strip is connected with the explosion-proof machine shell through the heat dissipation plate.
The invention has the beneficial effects that: on one hand, the heat in the explosion-proof shell can be quickly led into the rear side of the fan and directly blown out by the fan, so that the heat dissipation speed is greatly improved; on the other hand, the caliber of the air outlet channel is designed to be smaller than the size of the air outlet, so that the air flow can be compressed at the air outlet channel, and then the air outlet with the size larger than that of the air outlet channel is expanded, so that effective suction negative pressure can be generated, the air outlet volume is increased, the motor body is cooled better, the heat dissipation efficiency is improved, and the service life of the motor body is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of an explosion-proof enclosure according to an embodiment of the invention;
FIG. 2 is a schematic view of the internal structure of an explosion-proof enclosure according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a deflector viewed from the rear side of an explosion-proof enclosure in an embodiment of the invention.
The attached drawings indicate the following: 1. a motor body; 2. an explosion-proof enclosure; 3. a fan; 4. an air outlet; 5. a baffle; 6. an air outlet channel; 51. a baffling heat dissipation strip.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
As shown in fig. 1 to 3: an explosion-proof motor heat dissipation device comprises a motor body 1 and an explosion-proof casing 2 arranged on the periphery of the motor body 1, wherein a fan 3 is arranged on the rear side of the motor body 1; an air outlet 4 is arranged at the rear side of the fan 3; guide plates 5 are arranged on the upper side and the lower side between the fan 3 and the air outlet 4; the guide plate 5 consists of a plurality of baffling heat dissipation strips 51 which are arranged at intervals; one end of the baffling heat dissipation strip 51 is connected with the explosion-proof shell 2, and the other end is a free end; an air outlet channel 6 is formed between the guide plates 5 at the upper side and the lower side, and the size of the air outlet channel 6 is smaller than that of the air outlet 4.
The scheme has the following advantages: by arranging the guide plates 5 and the air outlet channels 6 formed between the guide plates, and the size of the air outlet channels 6 is smaller than that of the air outlet 4, airflow is compressed at the air outlet channels and then expanded through the air outlet larger than the air outlet channels, effective suction negative pressure can be generated, the air quantity is increased, the motor body 1 is cooled better, and the cooling efficiency is improved; through setting guide plate 5 to a plurality of baffling heat dissipation strip structures, and the explosion-proof casing 2 is connected to baffling heat dissipation strip 51's one end, can lead to fan 3 department with the heat on the explosion-proof casing 2, derive through fan 3, improve the radiating effect greatly, prolong motor body 1's life.
Specifically, the heat deflection and dissipation strip 51 can be directly welded with the inner wall of the explosion-proof enclosure 2 into a whole; or a plurality of baffling heat dissipation strips are welded on a heat dissipation plate firstly, and the whole heat dissipation plate is welded with the inner wall of the explosion-proof shell. Therefore, the heat on the explosion-proof casing 1 can be guided to the fan 3 for timely heat dissipation. The baffling heat dissipation strip 51 is of a bending structure and is bent towards the explosion-proof enclosure 2, so that the caliber of the air outlet channel 6 can be reduced to be smaller than the size of the air outlet 4. Wherein, the distance between the adjacent baffling heat dissipation strips 51 is 1-8 mm, and more preferably 2-5 mm. If the spacing is too small, material is wasted and heat dissipation efficiency is reduced; if the distance is too large, the flow guiding effect will be affected.
In this embodiment, the material of the heat deflecting and dissipating strip 51 is preferably copper, which can quickly guide heat to the fan 3, so that the heat dissipating effect is better.
In this embodiment, baffling heat dissipation strip 51 includes vertical strip and slope strip, and the one end of vertical strip and the one end of slope strip form the structure of buckling, and the other end and the explosion-proof casing 2 of vertical strip are connected, and the other end of slope strip is the free end. The present embodiment provides the heat deflecting and dissipating bar 51 on the rear side of the fan 3, and can quickly introduce heat to the rear side of the fan 3 and directly blow out by the fan 3.
The working principle of the embodiment is as follows: after the explosion-proof motor 2 is started, a large amount of heat can be generated after a rotating shaft in the explosion-proof motor 2 runs at a high speed, so that the explosion phenomenon can occur in the explosion-proof motor 2 due to thermal expansion, the operation of equipment can be influenced, and serious accidents can also be caused; the heat baffling and radiating strip 51 is connected with the explosion-proof shell 2, and the heat baffling and radiating strip 51 is arranged at the rear side of the fan 3, so that the heat baffling and radiating strip 51 can directly guide the heat on the explosion-proof shell 2 to the rear side of the fan 3 and is directly blown out by the fan 3; moreover, the caliber of the air outlet channel 6 is designed to be smaller than the size of the air outlet 4, so that the air quantity can be expanded at the rear side, the flow rate of the air is accelerated, the heat is rapidly discharged, and the heat dissipation effect is greatly improved.
Claims (7)
1. An explosion-proof motor heat dissipation device comprises a motor body and an explosion-proof casing arranged on the periphery of the motor body, wherein a fan is arranged on the rear side of the motor body; an air outlet is arranged at the rear side of the fan; the air conditioner is characterized in that guide plates are arranged on the upper side and the lower side between the fan and the air outlet; the guide plate consists of a plurality of baffling heat dissipation strips arranged at intervals; one end of the baffling heat dissipation strip is connected with the explosion-proof shell, and the other end of the baffling heat dissipation strip is a free end; an air outlet channel is formed between the guide plates on the upper side and the lower side, and the size of the air outlet channel is smaller than that of the air outlet.
2. The heat sink for explosion-proof motor as claimed in claim 1, wherein the heat-dissipating baffling strips are welded to the inner wall of the explosion-proof housing.
3. The heat dissipation device for the explosion-proof motor as recited in claim 1, wherein the distance between adjacent heat dissipation baffling strips is 1-8 mm.
4. The explosion-proof motor heat dissipation device of claim 3, wherein the distance between adjacent heat deflection and dissipation bars is 2-5 mm.
5. The explosion-proof motor heat dissipation device of any one of claims 1 to 4, wherein the baffling heat dissipation strip is of a bent structure and is bent towards the explosion-proof case.
6. The explosion-proof motor heat dissipation device of any one of claims 1 to 4, wherein the material of the baffling heat dissipation strip is copper or aluminum alloy.
7. The explosion-proof motor heat dissipation device of any one of claims 1 to 4, wherein the heat dissipation baffling strip is provided with a heat dissipation plate at the end connected with the explosion-proof housing, and the heat dissipation baffling strip is connected with the explosion-proof housing through the heat dissipation plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911095112.9A CN110838774A (en) | 2019-11-11 | 2019-11-11 | Explosion-proof motor heat abstractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911095112.9A CN110838774A (en) | 2019-11-11 | 2019-11-11 | Explosion-proof motor heat abstractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110838774A true CN110838774A (en) | 2020-02-25 |
Family
ID=69574874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911095112.9A Pending CN110838774A (en) | 2019-11-11 | 2019-11-11 | Explosion-proof motor heat abstractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110838774A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201879A (en) * | 2015-09-28 | 2015-12-30 | 无锡市南方防爆电机有限公司 | Anti-explosion fan |
| CN108054856A (en) * | 2018-02-01 | 2018-05-18 | 双龙集团上海防爆电机盐城股份有限公司 | A kind of explosion-proof electric machine engine base |
| CN208887046U (en) * | 2018-07-20 | 2019-05-21 | 珠海格力电器股份有限公司 | Heat dissipation assembly, frequency converter and air conditioner |
-
2019
- 2019-11-11 CN CN201911095112.9A patent/CN110838774A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201879A (en) * | 2015-09-28 | 2015-12-30 | 无锡市南方防爆电机有限公司 | Anti-explosion fan |
| CN108054856A (en) * | 2018-02-01 | 2018-05-18 | 双龙集团上海防爆电机盐城股份有限公司 | A kind of explosion-proof electric machine engine base |
| CN208887046U (en) * | 2018-07-20 | 2019-05-21 | 珠海格力电器股份有限公司 | Heat dissipation assembly, frequency converter and air conditioner |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200225 |