CN207868945U - A kind of threephase asynchronous machine forced ventilation cooling system - Google Patents
A kind of threephase asynchronous machine forced ventilation cooling system Download PDFInfo
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- CN207868945U CN207868945U CN201820323891.8U CN201820323891U CN207868945U CN 207868945 U CN207868945 U CN 207868945U CN 201820323891 U CN201820323891 U CN 201820323891U CN 207868945 U CN207868945 U CN 207868945U
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- asynchronous machine
- threephase asynchronous
- comparison means
- electric current
- air duct
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Abstract
A kind of threephase asynchronous machine forced ventilation cooling system, the outlet of the exhaust passage is configured at the position for the fan that the tail portion of threephase asynchronous machine is located at threephase asynchronous machine itself and the exhaust passage remains with gap with the threephase asynchronous machine；The infrared temperature sensor and CT configuration are on the threephase asynchronous machine, and the infrared temperature sensor is used to detect the temperature of the threephase asynchronous machine, and the current transformer is used to detect the electric current of the threephase asynchronous machine；The fan controller is electrically connected with the electric current comparison means and temperature comparison means respectively；The electric current comparison means and temperature comparison means are respectively used to be compared with the threshold value of setting, when the electric current of detection or temperature are more than the threshold value of setting, the electric current comparison means or temperature comparison means control the wind turbine by the fan controller and open.
Description
Technical field
The utility model is related to a kind of threephase asynchronous machine forced ventilation cooling systems.
Background technology
Currently, most of non-frequency threephase asynchronous machines all cool down fuselage by the way of axial flow air cooled, work as work
When making environment temperature higher than 40 °, motor operation is required for control load, and otherwise temperature liter is excessively high can cause motor over-heat inside to burn
It ruins.Especially needing to carry out in totally enclosed workshop in paper industry etc., summer operating temperature is more than in 45 ° or more of environment,
More easily occur, because load down does not cause the accident of motor damage to occur, prodigious influence to be brought on production, meanwhile, scene fortune
In capable motor, considerable part is being worked by transducer drive common electric machine, when production technology certain periods need into
When row frequency conversion speed-down, the higher hamonic wave of frequency converter causes a large amount of losses of rotor, these losses will greatly increase motor
Calorific value, while because rotating speed reduces, the cooling fan cooling effect of itself will also decrease, and the things such as burn-down of electrical machinery more easily occur
Therefore.
Utility model content
To overcome prior art problem, the utility model to provide a kind of threephase asynchronous machine forced ventilation cooling system.
A kind of threephase asynchronous machine forced ventilation cooling system, including wind turbine, reducing air duct, infrared temperature sensor, electricity
Current transformer, fan controller, electric current comparison means and temperature comparison means；
It includes air duct portion and exhaust passage that the reducing air duct is generally cylindric, and the exhaust passage is configured at the air duct portion
One end, the diameter of the exhaust passage is less than the diameter in air duct portion and the air duct portion extends transition to the exhaust passage, described
The other end in air duct portion configures the wind turbine；The tail portion that the outlet of the exhaust passage is configured at threephase asynchronous machine is different positioned at three
It walks at the position of the fan of motor itself and the exhaust passage remains with gap with the threephase asynchronous machine；
In on the threephase asynchronous machine, the infrared temperature passes for the infrared temperature sensor and CT configuration
Sensor is used to detect the temperature of the threephase asynchronous machine, and the current transformer is used to detect the electricity of the threephase asynchronous machine
Stream；The fan controller is electrically connected with the electric current comparison means and temperature comparison means respectively；The electric current compares dress
It sets and is respectively used to be compared with the threshold value of setting with temperature comparison means, when the electric current or temperature of detection are more than the threshold value of setting
When, the electric current comparison means or temperature comparison means control the wind turbine by the fan controller and open.
Preferably, the fan controller, electric current comparison means and temperature comparison means are configured in control room
In MCC incoming line cabinets.
Preferably, the wind turbine is axial flow blower.
Preferably, the reducing air duct is made of the steel disc of arc-shaped flaky, and the end of steel disc, which is configured with, to be outwardly protruded
Steel rib, the reducing air duct is configured to tubular by steel rib, while the steel rib is for radiating.
Preferably, the distance between the exhaust passage and the tail portion of threephase asynchronous machine are more than 5mm and are less than 50mm.
The beneficial effects of the utility model：
Threephase asynchronous machine forced ventilation cooling system provided by the utility model is single by itself in original motor
Forced ventilation cooling system is increased on the basis of aerofoil fan, the conveying capacity of cooling wind is increased by reducing air duct, is improved
The function of heat dissipation steel rib, the heat dissipation that motor housing is molded in particular for present novel extrusion has and is significantly promoted very, right
In the safety of motor, stable operation provides sound assurance, and the utility model is simple in structure, at low cost, appearance looks elegant, fluidisation
Performance is suitble to promote and apply on a large scale by force.
Description of the drawings
Fig. 1 is the structural schematic diagram of the threephase asynchronous machine forced ventilation cooling system of the utility model.
Specific implementation mode：
The utility model is described further below in conjunction with the accompanying drawings：Lead to as shown in Figure 1, a kind of threephase asynchronous machine forces
Air cooling system, including wind turbine 1, reducing air duct 2, infrared temperature sensor 3, current transformer 4, fan controller 5, electric current
Comparison means 6 and temperature comparison means 7；
It includes air duct portion 8 and exhaust passage 9 that the reducing air duct 2 is generally cylindric, and the exhaust passage 9 is configured at the wind
The diameter of the one end in road portion 8, the exhaust passage 9 is less than the diameter in air duct portion 8 and the air duct portion 8 extends to the exhaust passage 9
I.e. internally front extends for transition, and the other end in the air duct portion 8 configures the wind turbine 1；The outlet of the exhaust passage 9 is configured at
The tail portion of threephase asynchronous machine 10 is located at the position of the fan of itself of threephase asynchronous machine 10 and the exhaust passage 9 and described three
Phase Induction Machines 10 remain with gap；
The infrared temperature sensor 3 and current transformer 4 are configured on the threephase asynchronous machine, wherein described infrared
Temperature sensor 3 is configured on the shell of the threephase asynchronous machine, and the current transformer 4 is configured at the phase asynchronous electricity
On the end of incoming cables of machine, the infrared temperature sensor 3 and current transformer 4 respectively with the temperature comparison means 7 and electric current ratio
It is electrically connected compared with device 6；The infrared temperature sensor 3 is used to detect the temperature of the threephase asynchronous machine 10, and the electric current is mutual
Sensor 4 is used to detect the electric current of the threephase asynchronous machine 10；The fan controller 5 respectively with the electric current comparison means
6 and temperature comparison means 7 be electrically connected；The electric current comparison means 6 and temperature comparison means 7 be respectively used to setting threshold value into
Row compares, and when the electric current of detection or temperature are more than the threshold value of setting, the electric current comparison means 6 or temperature comparison means 7 are logical
It crosses the fan controller 5 and controls the wind turbine and open and can be according to the outlet air for controlling the wind turbine more than the size of threshold value
The size of amount.
The fan controller 5, electric current comparison means 6 and temperature comparison means 7 are configured at the MCC inlet wires in control room
In cabinet, the function of usual fan controller 5, electric current comparison means 6 and temperature comparison means 7 can by a main control module or
Person PLC minicomputers or micro computer can be realized.The wind turbine is axial flow blower.
The reducing air duct 2 is made of the steel disc of arc-shaped flaky, and the end of steel disc is configured with the steel rib outwardly protruded, described
Reducing air duct is fixed each other by bolt by steel rib and is configured to tubular, while the steel rib is for radiating.The outlet air
The distance between tail portion of road and threephase asynchronous machine is more than 5mm and is less than 50mm.
When in use, wind turbine 1 selects axial flow blower, power to depend on the circumstances, usual 0.75KW.Reducing size is according to electricity
Machine is adjusted, and electric current comparison means 6 and temperature comparison means 7 are specifically installed depending on field working conditions, with do not destroy motor air duct and
Based on casing cooling fin.When threephase asynchronous machine 10 works, 4 operation detection three of infrared temperature sensor 3 and current transformer
The temperature and electric current of phase Induction Machines 10, the electric current comparison means 6 and temperature that detection signal accesses in motor inlet wire MCC cabinets compare
Device 7, when motor body temperature is increased to strong cold unlatching limit, temperature comparison means 7 sends out signal and starts axis stream wind at once
Ventilating fan 1.When stall or other abnormal conditions occur for threephase asynchronous machine 10, significant change will occur for current of electric, reach
When electric current limits electric current comparison means 6 send out signal start at once aerofoil fan wind turbine 1 carry out it is strong cold, and send out sound-light alarm or
Alarm signal is sent and controls operating system into factory.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various modifications and improvement that the technical solution of utility model is made should all fall into the protection of the utility model claims book determination
In range.
Claims (5)
1. a kind of threephase asynchronous machine forced ventilation cooling system, it is characterised in that：
Including wind turbine, reducing air duct, infrared temperature sensor, current transformer, fan controller, electric current comparison means and temperature
Spend comparison means；
It includes air duct portion and exhaust passage that the reducing air duct is generally cylindric, and the exhaust passage is configured at the one of the air duct portion
The diameter at end, the exhaust passage is less than the diameter in air duct portion and the air duct portion extends transition, the air duct to the exhaust passage
The other end in portion configures the wind turbine；The tail portion that the outlet of the exhaust passage is configured at threephase asynchronous machine is located at phase asynchronous electricity
At the position of the fan of machine itself the and exhaust passage remains with gap with the threephase asynchronous machine；
The infrared temperature sensor and CT configuration are on the threephase asynchronous machine, the infrared temperature sensor
Temperature for detecting the threephase asynchronous machine, the current transformer are used to detect the electric current of the threephase asynchronous machine；
The fan controller is electrically connected with the electric current comparison means and temperature comparison means respectively；The electric current comparison means and
Temperature comparison means is respectively used to be compared with the threshold value of setting, when the electric current of detection or temperature are more than the threshold value of setting,
The electric current comparison means or temperature comparison means control the wind turbine by the fan controller and open.
2. threephase asynchronous machine forced ventilation cooling system according to claim 1, it is characterised in that：The air-blower control
Device, electric current comparison means and temperature comparison means are configured in the MCC incoming line cabinets in control room.
3. threephase asynchronous machine forced ventilation cooling system according to claim 1, it is characterised in that：The wind turbine is axis
Flow air blower.
4. threephase asynchronous machine forced ventilation cooling system according to claim 1, it is characterised in that：The reducing air duct
It is made of the steel disc of arc-shaped flaky, the end of steel disc is configured with the steel rib outwardly protruded, and the reducing air duct is configured by steel rib
At tubular, while the steel rib is for radiating.
5. threephase asynchronous machine forced ventilation cooling system according to claim 1, it is characterised in that：The exhaust passage and
The distance between tail portion of threephase asynchronous machine is more than 5mm and is less than 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820323891.8U CN207868945U (en) | 2018-03-09 | 2018-03-09 | A kind of threephase asynchronous machine forced ventilation cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820323891.8U CN207868945U (en) | 2018-03-09 | 2018-03-09 | A kind of threephase asynchronous machine forced ventilation cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207868945U true CN207868945U (en) | 2018-09-14 |
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ID=63456431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820323891.8U Active CN207868945U (en) | 2018-03-09 | 2018-03-09 | A kind of threephase asynchronous machine forced ventilation cooling system |
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| Country | Link |
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| CN (1) | CN207868945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113014776A (en) * | 2021-03-09 | 2021-06-22 | 杭州舜立光电科技有限公司 | Intelligent camera |
-
2018
- 2018-03-09 CN CN201820323891.8U patent/CN207868945U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113014776A (en) * | 2021-03-09 | 2021-06-22 | 杭州舜立光电科技有限公司 | Intelligent camera |
| CN113014776B (en) * | 2021-03-09 | 2022-08-02 | 杭州舜立光电科技有限公司 | Intelligent camera |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 210038 No. 42 Xingang Avenue, Nanjing Economic and Technological Development Zone, Qixia District, Nanjing City, Jiangsu Province, 17 blocks Patentee after: Nanjing Acker Sai Si Science and Technology Ltd. Address before: 211100 Jiangsu Province, Qixia Street, Qixia District, Nanjing City, Jiangnan Cement Factory Village Patentee before: Nanjing Acker Sai Si Science and Technology Ltd. |