CN111327156B - Air cooling temperature control system of traction motor - Google Patents
Air cooling temperature control system of traction motor Download PDFInfo
- Publication number
- CN111327156B CN111327156B CN202010238463.7A CN202010238463A CN111327156B CN 111327156 B CN111327156 B CN 111327156B CN 202010238463 A CN202010238463 A CN 202010238463A CN 111327156 B CN111327156 B CN 111327156B
- Authority
- CN
- China
- Prior art keywords
- motor
- conversion unit
- control box
- frequency conversion
- connecting plate
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 238000012545 processing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000003137 locomotive effect Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention provides an air cooling temperature control system of a traction motor, which comprises a cooling fan, a temperature sensor, a pressure transmitter and a control box; the cooling fan includes: the device comprises a filter, an air duct, a current collector, a fan impeller, a volute and a motor; the filter and the volute are fixedly connected with the bottom of the connecting plate, and the control box bracket is fixedly connected with the connecting plate; the control box includes: a frequency conversion unit for adjusting the operation frequency of the motor; the electric unit is used for protecting the frequency conversion unit and enabling the motor to operate at the power frequency; the temperature sensor and the pressure transmitter are arranged in the air duct and are electrically connected with the frequency conversion unit; the frequency conversion unit is electrically connected with the motor. The invention can automatically supply air according to the actual environment temperature and the environment pressure of the traction motor of the motor train unit or locomotive, ensure that the temperature (including the bearing temperature and the stator temperature) of the traction motor is basically consistent under different environment conditions, optimize the working environment of the traction motor, reduce the energy consumption of a cooling system and prolong the service life of a cooling fan.
Description
Technical Field
The invention relates to the technical field of temperature control of traction motors of motor train units or locomotives, in particular to an air cooling temperature control system of a traction motor.
Background
At present, the traction motor equipped with a motor train unit or a locomotive mainly adopts air cooling and water cooling technologies, wherein the air cooling occupies absolute quantity advantages. In order to ensure that the motor train unit or the locomotive can normally run under the design environmental conditions, the traction motor design selects cooling air quantity according to the worst design environmental conditions (highest altitude and highest use environmental temperature), and the air pressure of the cooling fan is determined according to the air quantity. On the basis, the performance index of the cooling fan is also required to be adjusted by a certain margin, so that the cooling requirement of the traction motor is still met under the conditions that the cooling capacity of a cooling system (comprising an air inlet system, the cooling fan and an exhaust system) is reduced due to pollution, the resistance is increased due to blockage, the air quantity is reduced due to manufacturing errors and the like in the subsequent operation. The fan performance designed according to the principle can ensure that the traction motor obtains enough cooling under any design environmental condition. But at another angle, when the traction motor is cooled excessively in other non-severe environmental conditions, including in relatively low altitude areas and in low temperature environments, a great amount of energy waste is caused.
Disclosure of Invention
The invention provides an air cooling temperature control system of a traction motor, which aims to overcome the technical problems.
The invention provides an air cooling temperature control system of a traction motor, which comprises a cooling fan, a temperature sensor, a pressure transmitter and a control box;
The cooling fan includes: the device comprises a filter, an air duct, a current collector, a fan impeller, a volute and a motor; the output end of the motor is connected with the fan impeller, the fan impeller is arranged in the volute, the volute is connected with one end of the air duct, and the filter is connected with the other end of the air duct; the filter and the volute are fixedly connected with the bottom of a connecting plate, and the connecting plate is fixedly connected with a motor train unit bottom plate;
The control box is fixedly connected with the control box bracket, and the control box bracket is fixedly connected with the connecting plate through a fixing piece;
The control box includes: a frequency conversion unit for adjusting the operation frequency of the motor; the electric unit is used for protecting the traction motor and enabling the motor to operate at the power frequency;
the temperature sensor and the pressure transmitter are arranged in the air duct and are electrically connected with the frequency conversion unit; the frequency conversion unit is electrically connected with the frequency conversion unit.
Further, the frequency conversion unit comprises a grading processing module; a block; the grading processing module is used for comparing the ambient temperature acquired by the temperature sensor with the ambient pressure acquired by the pressure transmitter in real time based on preset first target temperature, second target temperature and target pressure and performing corresponding grading processing; the control process of the classification process includes:
When the ambient temperature is greater than the first target temperature, the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor to operate according to a first operating frequency;
when the ambient temperature is smaller than the second target temperature, the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor to operate according to a second operating frequency;
When the ambient temperature is smaller than or equal to the first target temperature and larger than or equal to the second target temperature, the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor to run according to a frequency curve preset by the grading processing module.
Further, the frequency conversion unit is a frequency converter;
the electrical unit includes: a circuit breaker and a first contactor; the circuit breaker inlet wire end is connected with the power supply, the outlet wire end is connected with the first contactor inlet wire end, and the first contactor outlet wire end is connected with the frequency converter.
Further, the method further comprises the following steps: a second contactor; and the wire inlet end of the second contactor is connected with the output end of the frequency converter, and the wire outlet end of the second contactor is connected with the motor.
Further, the connecting plate is fixedly connected with the motor train unit bottom plate through a suspension piece; the hanger includes: a base plate fixing portion and a connection plate fixing portion; the connecting plate fixing part is L-shaped, the free end of the longitudinal part of the connecting plate fixing part is vertically connected with the bottom plate fixing part, the bottom plate fixing part is fixedly connected with the motor train unit bottom plate, and the transverse part of the connecting plate fixing part is fixedly connected with the connecting plate; the reinforcing ribs are fixedly connected with the bending parts of the connecting plate fixing parts.
Further, the control box bracket is U-shaped, two longitudinal parts of the control box bracket are vertically connected with the fixing pieces fixed on two sides of the connecting plate, and the control box is fixedly connected with the transverse part of the control box bracket and is positioned between the control box bracket and the connecting plate.
Further, the method further comprises the following steps: and one end of the shock absorber is fixedly connected with the transverse part of the connecting plate fixing part, and the other end of the shock absorber is fixedly connected with the connecting plate.
Further, the frequency conversion unit comprises a radiator for radiating the frequency conversion unit, and the radiator is arranged at the bottom of the control box.
The invention can automatically supply air according to the actual environment temperature and the environment pressure of the traction motor of the motor train unit or locomotive, ensure that the temperature (including the bearing temperature and the stator temperature) of the traction motor is basically consistent under different environment conditions, optimize the working environment of the traction motor, reduce the energy consumption of a cooling system and prolong the service life of a cooling fan.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of the front structure of an air-cooled temperature control system of a traction motor according to the present invention;
FIG. 2 is a schematic diagram of the back structure of the air cooling temperature control system of the traction motor of the present invention;
FIG. 3 is a schematic diagram of an air-cooled temperature control system for a traction motor according to the present invention;
FIG. 4 is a schematic diagram of another angle of the air-cooled temperature control system of the traction motor of the present invention;
FIG. 5 is a schematic diagram of a control box bracket structure of the air-cooled temperature control system of the traction motor of the present invention;
FIG. 6 is a schematic diagram of a suspension member of the air-cooled temperature control system of the traction motor of the present invention;
FIG. 7 is a schematic diagram of the external structure of a control box of an air cooling temperature control system of a traction motor according to the invention;
FIG. 8 is a schematic diagram of the internal structure of the control box of the air-cooled temperature control system of the traction motor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an air cooling temperature control system of a traction motor, which is shown in fig. 1 and 2, and comprises a cooling fan, a temperature sensor 2, a pressure transmitter 3 and a control box 7; the cooling fan includes: 1.3 parts of filter, 1.4 parts of air duct, 1.5 parts of collector, 1.6 parts of fan impeller, 1.7 parts of volute and 1.11 parts of motor; the output end of the motor 1.11 is connected with the fan impeller 1.6, the fan impeller 1.6 is arranged in the volute 1.7, the fan impeller 1.6 is connected with the shaft disc 1.10 through bolts to form a whole, the whole is pressed on the shaft of the motor 1.11 through the shaft end bolts 1.8, the shaft end bolts 1.8 are provided with locking gaskets 1.9 to prevent loosening, and the motor 1.11 is fixedly connected with the volute 1.7; the volute 1.7 is connected with one end of the air duct 1.4, the filter 1.3 is connected with the other end of the air duct 1.4, and the volute 1.7 and the air duct 1.4 are communicated with the outside through the filter 1.3; the filter 1.3 and the volute 1.7 are fixedly connected with the bottom of the connecting plate 8, the top of the connecting plate 8 is fixedly connected with the motor train unit bottom plate, and the connecting plate 8 is used for fixing the filter 1.3, the air duct 1.4, the fan impeller 1.6, the volute 1.7 and the motor 1.11.
The control box 7 is fixedly connected with the control box bracket 4 through a damping bolt 6, the control box bracket 4 is fixedly connected with the connecting plate 8 through a fixing piece 9, and the control box bracket 4 is adjacent to the volute 1.7; as shown in fig. 5, the control box bracket 4 is "U" shaped, two longitudinal parts of the control box bracket 4 are vertically connected with the fixing pieces 9 fixed on two sides of the connecting plate 8 through bolts 5, the control box 7 is fixedly connected with a transverse part of the control box bracket 4 and is located between the control box bracket 4 and the connecting plate 8, the control box 7 is located below the motor 1.11, and the motor 1.11 is located in a space inside the control box bracket 4, so that the space is effectively saved.
As shown in fig. 7 and 8, the control box 7 includes: the frequency conversion unit is used for adjusting the running frequency of the motor 1.11 and is a frequency converter; and the electric unit is used for protecting the traction motor and enabling the motor 1.11 to operate at the power frequency, and when the frequency converter fails, the switchable electric unit can control the operation of the motor 1.11 so as to drive the fan impeller 1.6 to operate and cool the traction motor. The traction motor cannot burn out due to the fact that the motor 1.11 cannot supply air because of the failure of the frequency converter, and meanwhile the frequency converter is indirectly protected.
As shown in fig. 7, the frequency conversion unit is provided with a frequency conversion unit cover plate 7.2, and the electric unit is provided with an electric unit cover plate 7.3, so that maintenance on each unit is facilitated. The control box 7 is provided with 3 metal waterproof joints 7.5 which respectively provide channels for input cables, output cables and signal cables (such as signal wires of the temperature sensor 2 and the pressure transmitter 3), and meanwhile, the protection performance meets the requirements above IP 55. A wire binding rod 7.4 is arranged above the metal waterproof joint 7.5, and is used for binding an input cable, an output cable and a signal cable, so that the input cable, the output cable and the signal cable can not shake in the operation process. The control box 7 is also provided with a display screen 7.6, so that all input and output parameters (such as data collected by the temperature sensor 2 and the pressure transmitter 3) can be displayed, and the input parameters can be adjusted by a keyboard of the display screen. The control box 7 is also provided with a fault indicator lamp 7.7, so that a flicker alarm is realized when the frequency converter breaks down, and maintenance personnel can find out and repair and maintain in time. The electrical unit is internally provided with a wiring block 7.14 for supplying power to the input and output wiring.
The frequency conversion unit comprises a grading processing module; the grading processing module is used for comparing the ambient temperature acquired by the temperature sensor 2 with the ambient pressure acquired by the pressure transmitter 3 in real time based on preset first target temperature, second target temperature and target pressure and performing corresponding grading processing; the control process of the classification process includes:
when the ambient temperature is greater than the first target temperature and the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor 1.11 to operate according to a first operating frequency;
When the ambient temperature is smaller than the second target temperature and the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor 1.11 to operate according to a second operating frequency;
When the ambient temperature is smaller than or equal to the first target temperature and larger than or equal to the second target temperature, the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor 1.11 to operate according to a frequency curve preset by the grading processing module.
The temperature sensor 2 and the pressure transmitter 3 are arranged in the air duct 1.4 and are electrically connected with the frequency converter, and the frequency converter is electrically connected with the motor 1.11. The temperature sensor 2 measures the internal environment temperature of the air duct 1.4, the pressure transmitter 3 measures the pressure difference of the internal environment pressure of the air duct 1.4 relative to the ambient atmospheric pressure, the temperature sensor 2 and the pressure transmitter 3 transmit the acquired information to the frequency converter through a wire to serve as input information of the frequency converter, and the pressure transmitter 3 intelligently controls the air cooling temperature control system of the traction motor according to the temperature and pressure information; for example, for a certain motor train unit, when the environmental temperature received by a hierarchical processing module, i.e. a CPU, in the frequency converter is greater than a first target temperature (35 ℃) and the environmental pressure is equal to a target pressure (one standard atmospheric pressure), the frequency converter controls the motor 1.11 to operate at a frequency of 2920 r/min; when the ambient temperature is less than the second target temperature (-10 ℃) and the ambient pressure is equal to the target pressure (one standard atmospheric pressure), the inverter controls the motor 1.11 to operate at a frequency of 1550 r/min; when the ambient temperature is between-10 ℃ and 35 ℃ and the ambient pressure is at a standard atmospheric pressure, the motor 1.11 carries out speed regulation operation according to a preset curve built in the CPU. In addition, if the external environmental pressure also has a relatively large change, for example, after the environmental pressure is lower than 0.9 standard atmospheric pressure, the data actually measured by the pressure transmitter 3 is also included in calculation, and the motor 1.11 will perform speed regulation operation according to another built-in preset curve (the curve in this part is the prior art, and the application is not repeated); the lower the measured ambient pressure of the pressure transmitter 3, the higher the actual operating speed of the motor 1.11.
The electrical unit includes: a circuit breaker 7.15, a first contactor 7.16 and a second contactor 7.17; the wire inlet end of the circuit breaker 7.15 is connected with a power supply, the wire outlet end of the circuit breaker is connected with the wire inlet end of the first contactor 7.16, and the wire outlet end of the first contactor 7.16 is connected with the frequency converter; the inlet end of the second contactor 7.17 is connected with the output end of the frequency converter, and the outlet end is connected with the motor 1.11.
Specifically, the circuit breaker 7.15 can protect the internal circuit of the control box 7 in case of abnormality. The abnormal conditions include overload, overvoltage, undervoltage, short circuit, overheat, overcurrent, etc. When these faults occur, the circuit breaker will automatically open and the control box 7 will not continue to operate.
The first contactor 7.16 is matched with the circuit breaker 7.15 when being closed, so that the normal operation of the internal circuit of the control box 7 is ensured; the second contactor 7.17 is matched with the breaker 7.15 when being disconnected, so that when the control box 7 does not work, the cooling fan can receive the power frequency power supply to continue to operate, and the cooling air source is continuously provided for the traction motor, so that the traction motor is protected from being burnt due to the fact that the control box 7 fails and no cooling air source exists. The number of contactors can be increased for the cooling fan with large starting current, and soft start is realized for the cooling fan, so that impact of the starting current on other equipment is reduced.
Further, the connecting plate 8 is fixedly connected with the motor train unit bottom plate through a hanging piece 1.1; as shown in fig. 6, the hanger 1.1 includes: a base plate fixing portion 1.1.1 and a connecting plate fixing portion 1.1.2; the connecting plate fixing part 1.1.2 is L-shaped, the free end of the longitudinal part of the connecting plate fixing part 1.1.2 is vertically connected with the bottom plate fixing part 1.1.1, the bottom plate fixing part 1.1.1 is fixedly connected with the motor train unit bottom plate, and the transverse part of the connecting plate fixing part 1.1.2 is fixedly connected with the connecting plate 8; the reinforcing ribs 1.1.3 are fixedly connected with the bending parts of the connecting plate fixing parts 1.1.2, so that the stability of the suspension part 1.1 is further enhanced, and the whole system can be firmly fixed on the motor train unit bottom plate.
Further, in order to prevent the entire system from shaking due to severe shaking when the motor vehicle is running, the method further comprises: and one end of the shock absorber 1.2 is fixedly connected with the transverse part of the connecting plate fixing part 1.1.2, and the other end of the shock absorber 1.2 is fixedly connected with the connecting plate 8.
Further, in order to ensure the normal operation of the control box 7, the frequency conversion unit further comprises a radiator 7.8 for radiating heat of the frequency conversion unit, and the radiator 7.8 is arranged at the bottom of the control box 7 and is in an integrated structure with the control box.
The working process of the invention is as follows:
As shown in fig. 3 and 4, when the motor train is running, the motor 1.11 is running according to the rated running frequency, and drives the fan impeller 1.6 to run, so that air enters the air duct 1.4 after passing through the filter 1.3, generates wind for cooling the traction motor, and is discharged from the air outlet 10 to cool the traction motor; when the motor car enters high ambient temperature and high altitude, the altitude and ambient temperature information are acquired by the temperature sensor 2 and the pressure transmitter 3 respectively, the frequency converter receives the temperature and pressure information, and the corresponding frequency of the operation of the motor is controlled according to the received information output, so that the fan impeller is operated to reach a certain rotating speed, and the purpose of cooling the traction motor is achieved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. The air cooling temperature control system of the traction motor is characterized by comprising a cooling fan, a temperature sensor (2), a pressure transmitter (3) and a control box (7);
The cooling fan includes: the air conditioner comprises a filter (1.3), an air duct (1.4), a current collector (1.5), a fan impeller (1.6), a volute (1.7) and a motor (1.11); the output end of the motor (1.11) is connected with the fan impeller (1.6), the fan impeller (1.6) is arranged in the volute (1.7), the volute (1.7) is connected with one end of the air duct (1.4), and the filter (1.3) is connected with the other end of the air duct (1.4); the filter (1.3) and the volute (1.7) are fixedly connected with the bottom of the connecting plate (8), and the connecting plate (8) is fixedly connected with the motor train unit bottom plate;
The control box (7) is fixedly connected with the control box bracket (4), and the control box bracket (4) is fixedly connected with the connecting plate (8) through a fixing piece (9);
The control box (7) comprises: a frequency conversion unit for adjusting the operating frequency of the motor (1.11); an electrical unit for protecting the traction motor and operating the motor (1.11) at mains frequency;
the temperature sensor (2) and the pressure transmitter (3) are arranged in the air duct (1.4) and are electrically connected with the frequency conversion unit; the frequency conversion unit is electrically connected with the motor (1.11);
The frequency conversion unit comprises a grading processing module; the grading processing module is used for comparing the ambient temperature acquired by the temperature sensor (2) with the ambient pressure acquired by the pressure transmitter (3) in real time based on preset first target temperature, second target temperature and target pressure and performing corresponding grading processing; the control process of the classification process includes: when the ambient temperature is greater than the first target temperature and the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor (1.11) to operate according to a first operating frequency;
When the ambient temperature is smaller than the second target temperature and the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor (1.11) to operate according to a second operating frequency;
When the ambient temperature is smaller than or equal to the first target temperature and larger than or equal to the second target temperature, the ambient pressure is equal to the target pressure, the grading processing module sends an instruction to the frequency conversion unit, and the frequency conversion unit controls the motor (1.11) to operate according to a frequency curve preset by the grading processing module.
2. The system of claim 1, wherein the frequency conversion unit is a frequency converter;
the electrical unit includes: a circuit breaker (7.15) and a first contactor (7.16); the circuit breaker (7.15) inlet wire end is connected with a power supply, the outlet wire end is connected with the inlet wire end of the first contactor (7.16), and the outlet wire end of the first contactor (7.16) is connected with the frequency converter.
3. The system of claim 2, further comprising: a second contactor (7.17); the inlet end of the second contactor (7.17) is connected with the output end of the frequency converter, and the outlet end of the second contactor is connected with the motor (1.11).
4. The system according to claim 1, characterized in that the connection plate (8) is fixedly connected to the motor train unit floor by means of a suspension element (1.1); the suspension (1.1) comprises: a bottom plate fixing part (1.1.1), a connecting plate fixing part (1.1.2) and a reinforcing rib (1.1.3); the connecting plate fixing part (1.1.2) is L-shaped, the free end of the longitudinal part of the connecting plate fixing part (1.1.2) is vertically connected with the bottom plate fixing part (1.1.1), the bottom plate fixing part (1.1.1) is fixedly connected with the motor train unit bottom plate, and the transverse part of the connecting plate fixing part (1.1.2) is fixedly connected with the connecting plate (8); the reinforcing ribs (1.1.3) are fixedly connected with the bending parts of the connecting plate fixing parts (1.1.2).
5. The system according to claim 1, characterized in that the control box carrier (4) is "U" -shaped, both longitudinal parts of the control box carrier (4) are vertically connected with the fixing members (9) fixed at both sides of the connection plate (8), and the control box (7) is fixedly connected with the lateral parts of the control box carrier (4) and is located between the control box carrier (4) and the connection plate (8).
6. The system of claim 4, further comprising: the shock absorber (1.2), shock absorber (1.2) one end with the horizontal part fixed part of connecting plate (1.1.2) fixed connection, the other end with connecting plate (8) fixed connection.
7. The system according to claim 1, further comprising a radiator (7.8) for radiating heat from the frequency conversion unit, the radiator (7.8) being arranged at the bottom of the control box (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010238463.7A CN111327156B (en) | 2020-03-30 | 2020-03-30 | Air cooling temperature control system of traction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010238463.7A CN111327156B (en) | 2020-03-30 | 2020-03-30 | Air cooling temperature control system of traction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111327156A CN111327156A (en) | 2020-06-23 |
| CN111327156B true CN111327156B (en) | 2024-07-02 |
Family
ID=71171648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010238463.7A Active CN111327156B (en) | 2020-03-30 | 2020-03-30 | Air cooling temperature control system of traction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111327156B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212305015U (en) * | 2020-03-30 | 2021-01-05 | 中车大连机车研究所有限公司 | Air cooling temperature control system of traction motor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204886560U (en) * | 2015-08-28 | 2015-12-16 | 上海宝钢节能环保技术有限公司 | A intelligent economize on electricity system for cold rolling main electric machine cooling fan |
| WO2018107366A1 (en) * | 2016-12-13 | 2018-06-21 | 中车株洲电力机车有限公司 | Traction fan cooling air volume adjusting method and device |
| CN107889434B (en) * | 2017-12-19 | 2020-07-31 | 中车株洲电力机车有限公司 | Hybrid cooling system of traction inverter of railway vehicle and control method thereof |
-
2020
- 2020-03-30 CN CN202010238463.7A patent/CN111327156B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212305015U (en) * | 2020-03-30 | 2021-01-05 | 中车大连机车研究所有限公司 | Air cooling temperature control system of traction motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111327156A (en) | 2020-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207150405U (en) | A kind of frequency-conversion control cabinet | |
| CN103458656A (en) | Auxiliary power box | |
| CN204829133U (en) | Emergent mobile power station | |
| CN212305015U (en) | Air cooling temperature control system of traction motor | |
| CN111327156B (en) | Air cooling temperature control system of traction motor | |
| CN105655095A (en) | Air-cooled control device | |
| CN210430447U (en) | Waterproof distribution box | |
| CN216684064U (en) | Cooling system applied to pure electric special vehicle | |
| CN214960786U (en) | Thermal management system for railway locomotive transmission control cabinet | |
| CN114590278A (en) | Device and method for monitoring vibration temperature rise of ventilation cooling system, terminal and electric locomotive | |
| CN112217424A (en) | Cooling fan of medium-voltage frequency converter cabinet and control device and method of air conditioner | |
| CN209056443U (en) | Intelligent universal dustproof heat dissipation cover for circuit breaker | |
| CN214901845U (en) | Automatic electric control device for mining water pump | |
| CN212935801U (en) | Cooling fan of medium-voltage frequency converter cabinet and adjusting device of air conditioner | |
| CN217336101U (en) | One drags two cooling pump control casees | |
| CN213981278U (en) | EC fan for track traffic | |
| CN211791131U (en) | Air-cooled alternating-current generator | |
| CN212412537U (en) | Multi-functional good electric wire netting operation case of heat dispersion | |
| CN209586674U (en) | A kind of cooling device of the oil-free electric scroll air compressor machine of New-energy electric vehicle | |
| CN218916412U (en) | Temperature and humidity monitoring system of high-voltage frequency converter | |
| CN216250305U (en) | Power loop of cooling fan of generator exciting transformer | |
| CN207111484U (en) | A kind of ventilation blower of locomotive converter cabinet | |
| CN110145827A (en) | A kind of elevator brake electric energy conversion semiconductor refrigerating air-conditioning temperature-reducing device | |
| CN221079753U (en) | Intelligent power transformer | |
| CN211480661U (en) | Novel high-low voltage complete equipment switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |