CN218416154U - Squirrel-cage motor stator winding for fuel pump - Google Patents
Squirrel-cage motor stator winding for fuel pump Download PDFInfo
- Publication number
- CN218416154U CN218416154U CN202222466414.6U CN202222466414U CN218416154U CN 218416154 U CN218416154 U CN 218416154U CN 202222466414 U CN202222466414 U CN 202222466414U CN 218416154 U CN218416154 U CN 218416154U
- Authority
- CN
- China
- Prior art keywords
- temperature
- stator winding
- winding
- fuel pump
- temperature protector
- 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.)
- Active
Links
Images
Landscapes
- Protection Of Generators And Motors (AREA)
Abstract
The utility model discloses the project belongs to aviation motor design technical field, a squirrel cage motor stator winding for fuel pump. In a squirrel-cage motor stator winding for a fuel pump, at least 1 temperature protector is added according to current, the temperature protector is installed at the end part of the winding, one end of the temperature protector is connected with a winding outgoing line, and the other end of the temperature protector is connected with a power supply outgoing line. The utility model discloses arouse motor stator winding to faults such as stator winding short circuit overheated, when reaching temperature protector's protection temperature, the temperature protector disconnection, the cutoff circuit, motor temperature can not exceed 200 ℃, has protected the squirrel cage motor for the fuel pump to arouse the safety problem that overheated caused after the winding trouble appears.
Description
Technical Field
The utility model discloses the project belongs to aviation motor design technical field, a squirrel cage motor stator winding for fuel pump.
Technical Field
In order to ensure the safety of an oil pump motor which is totally immersed in aviation fuel, the surface temperature of all products and components in the fuel tank, which are contacted with the fuel, is not more than 200 ℃, and safety problems such as combustion, explosion and the like can be caused when the temperature is more than 200 ℃.
Disclosure of Invention
The utility model aims at: for solving the technical problem, the utility model discloses set up overheated power-off protection device at motor stator winding end, add temperature protector promptly, protected the squirrel cage motor for the fuel pump arouse the safety problem that overheated caused after the winding trouble appears.
The technical scheme of the utility model is that: the utility model provides a temperature protector installs at the tip of winding, and temperature protector one end is connected with the winding lead-out wire, and the other end is connected with the power supply lead-out wire, in squirrel-cage motor stator winding for the fuel pump, according to the at least 1 temperature protector that increases of electric current.
When two or more temperature protectors are ensured, the temperature protectors are firstly connected in parallel and then connected in series in a three-phase winding of the oil pump motor.
The temperature protector needs to be resistant to aviation fuel oil, and the rated operating temperature is 192 +/-5 ℃.
The temperature protectors are uniformly dispersed at the end parts of the stator windings and are bound together with the end parts of the stator windings.
The temperature protector needs to be wrapped with insulation.
And the lead of the temperature protector is connected with the lead of the winding in a welding way.
The utility model has the advantages that: the protection device aims at the problems that the stator winding of the motor is overheated due to faults such as short circuit of the stator winding and the like, when the protection temperature of the temperature protector is reached, the temperature protector is disconnected, the circuit is cut off, the temperature of the motor does not exceed 200 ℃, and the safety problem caused by overheating after the winding fault of the squirrel-cage motor for the fuel pump occurs is protected.
Drawings
FIG. 1 is a schematic circuit diagram
FIG. 2 is a schematic view of a weld
FIG. 3 schematic diagram of binding position of temperature protector
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings:
as shown in figure 3, in the squirrel-cage motor stator winding for the fuel pump, at least 1 temperature protector is added according to current, the temperature protector is installed at the end part of the winding, one end of the temperature protector is connected with a winding outgoing line, and the other end of the temperature protector is connected with a power supply outgoing line.
The requirements for selecting a temperature protector are as follows:
the temperature protector needs to be resistant to aviation fuel. Rated operating temperature (192 +/-5) DEG C; selecting the rated voltage of the temperature protector according to the rated voltage value of the motor power supply which is more than 2 times; the rated current value of the temperature protector is selected according to the rated current value of the motor, the rated current value of the temperature protector is possibly smaller than the rated current value of the motor due to the limitation of the volume of the temperature protector, and more than two (including two) temperature protectors can be connected in parallel firstly and then connected in series in a three-phase winding of the oil pump motor in order to ensure the reliable work of the temperature protector.
As shown in fig. 2, since the temperature protector is connected in series to the three-phase winding of the stator, the temperature protector lead and the winding lead are welded. The distance between a connecting point 2 on a lead wire and a temperature protector body 1 during welding is more than or equal to 5mm, the temperature protector is ensured to be uniformly heated as much as possible, the welding is carried out according to the conditions in a table 1, and a heat dissipation device 3 is used between a welding point and the temperature protector during the welding process.
TABLE 1 maximum allowable weld time for different weld points from the length of the body of the temperature protector
The welded temperature protectors need to be wrapped by insulation, are uniformly dispersed at the end portions of the stator windings, and are bound together with the end portions of the stator windings, and a schematic position diagram of 3 temperature protectors 4 is shown in fig. 3.
As shown in fig. 1, when the motor winding temperature is below the protection temperature for normal operation, the temperature protector is normally on, and the power supply provided for the motor works normally; if the temperature of the three-phase winding reaches the protection temperature at the same time, the three temperature protectors are simultaneously disconnected, the three-phase winding of the motor is also simultaneously disconnected, and the motor stops working. If the temperatures of the three-phase windings do not reach the protection temperature simultaneously, when the temperature of any one of the serially connected temperature protectors reaches the protection temperature, the phase temperature protector is fused, the phase is disconnected, the motor can work under the other two-phase power supply, but the working current is greatly increased, when one of the other two temperature protectors reaches the protection temperature, the phase temperature protector is disconnected, the phase winding is disconnected, the other two-phase power supply provided for the motor is cut off, and the motor stops working. The protector is not recoverable once it is disconnected.
Claims (6)
1. The utility model provides a squirrel-cage motor stator winding for fuel pump which characterized in that, in squirrel-cage motor stator winding for fuel pump, increases 1 temperature protector at least according to the electric current, and temperature protector installs the tip at the winding, and temperature protector one end is connected with the winding lead-out wire, and the other end is connected with power supply lead-out wire.
2. The squirrel cage motor stator winding for the fuel pump as set forth in claim 1, wherein the temperature protectors are connected in parallel and then connected in series in the three-phase winding of the oil pump motor when there are two or more temperature protectors.
3. The squirrel cage motor stator winding for a fuel pump of claim 1, wherein the temperature protector is resistant to aviation fuel and has a rated operating temperature of 192 ± 5 ℃.
4. The squirrel cage motor stator winding for a fuel pump as set forth in claim 1, wherein the temperature protectors are uniformly dispersed over and bound to the stator winding ends.
5. The squirrel cage motor stator winding for a fuel pump of claim 1, wherein the temperature protector requires insulation.
6. The squirrel cage motor stator winding for a fuel pump of claim 1, wherein the temperature protector leads are welded to the winding leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222466414.6U CN218416154U (en) | 2022-09-16 | 2022-09-16 | Squirrel-cage motor stator winding for fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222466414.6U CN218416154U (en) | 2022-09-16 | 2022-09-16 | Squirrel-cage motor stator winding for fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218416154U true CN218416154U (en) | 2023-01-31 |
Family
ID=85032046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222466414.6U Active CN218416154U (en) | 2022-09-16 | 2022-09-16 | Squirrel-cage motor stator winding for fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218416154U (en) |
-
2022
- 2022-09-16 CN CN202222466414.6U patent/CN218416154U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102460909B (en) | Brush apparatus for an electric machine and electric machine | |
| CN101911420B (en) | The circuit apparatus for protecting a pre-charge resistance using an inter-lock switch | |
| CN104810799B (en) | Overvoltage protection and matrix current adjustment circuit | |
| JP2013009475A (en) | Surge current suppression circuit | |
| CN206498237U (en) | A kind of direct-current charging post circuit | |
| CN207339473U (en) | A kind of motor with excess-current excess-temperature protection | |
| CN218416154U (en) | Squirrel-cage motor stator winding for fuel pump | |
| CN204190362U (en) | Mini-type bi-pole petrol and diesel oil threephase generator | |
| JP6371021B1 (en) | Variable speed pumped storage power generation system and variable speed pumped storage power generation method | |
| KR101114980B1 (en) | Starting control method and apparatus | |
| CN105406635A (en) | Overload prevention motor | |
| CN201733073U (en) | Motor protector realizing protection by positive temperature factor thermistance | |
| CN208128024U (en) | A kind of energy-efficient water pump stall, overload, phase shortage burn-free motor | |
| CN203645482U (en) | Motor with overheating protection function | |
| CN201975670U (en) | DC motor overheating protection brush bracket | |
| CN210016270U (en) | Motor overheating protection system for coal mine scraper conveyor | |
| CN202749799U (en) | High-power DC controller output overheating protection circuit | |
| CN204928488U (en) | End cover subassembly structure of motor for circuit breaker | |
| CN204458174U (en) | A kind of high-power commercial car overheating of starter protective gear | |
| CN107181240A (en) | Rectifier bridge protection circuit, over-pressure safety device and electric power system | |
| CN216056716U (en) | Improved through-flow hydraulic generator neutral point grounding device | |
| CN203406603U (en) | Surge protector | |
| CN203733491U (en) | Reusable wire cable having overheating protection function | |
| CN202441568U (en) | Energy-efficient submerged motor pump, which prevents motor from burning under overload, open-phase and water shortage conditions | |
| CN218657274U (en) | Protection heat dissipation circuit applied to double-voltage machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |