High-voltage reactance type electromagnetic starter with high-temperature protection
By introducing a temperature sensor and air conditioning system into the high-voltage reactor electromagnetic starter, combined with an electric telescopic mechanism and heat exhaust window design, the problem of equipment protection in high-temperature environments is solved, achieving safe operation and extended equipment life in high-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HUANYU MINING ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-05-19
AI Technical Summary
Existing high-voltage reactor-type electromagnetic starters lack effective protection measures in high-temperature environments, making the equipment prone to damage and unsuitable for soft starting of high-voltage equipment in high-temperature environments.
Temperature sensors are used to monitor internal and external temperatures. The system combines an air conditioning system with an electric telescopic mechanism to achieve temperature control and heat dissipation in high-temperature environments. The design of heat dissipation windows and closed doors, combined with fireproof insulation panels and dustproof nets, ensures the safe operation of the equipment at high temperatures.
This effectively avoids damage to the electromagnetic starter caused by high temperatures, ensures normal operation of the equipment in high-temperature environments, extends the service life of the equipment, and improves the applicability and safety of the equipment.
Smart Images
Figure CN224264870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining equipment, and in particular to a high-voltage reactor-type electromagnetic starter with high-temperature protection. Background Technology
[0002] High-voltage reactor-type electromagnetic starters are used for soft starting of high-voltage motors (such as mining equipment). They limit the starting current by connecting reactors in series, avoiding grid voltage fluctuations and protecting the motor and power supply system. Their structure includes a reactor module, a control unit, and a bypass system. During operation, they inevitably generate heat due to increased line impedance. Therefore, the duration of a single operation is generally limited to no more than two minutes, and starting in high-temperature environments should be avoided to prevent excessively high temperatures after startup. However, existing high-voltage reactor-type electromagnetic starters generally do not have high-temperature protection functions and are not suitable for high-temperature environments. Therefore, it is particularly necessary to develop a high-voltage reactor-type electromagnetic starter with high-temperature protection for soft starting of high-voltage equipment in high-temperature environments. Summary of the Invention
[0003] The purpose of this invention is to provide a high-voltage reactor-type electromagnetic starter with high-temperature protection, which has the advantage of soft starting under high voltage in high-temperature environments.
[0004] The technical solution adopted is as follows:
[0005] A high-voltage reactor-type electromagnetic starter with high-temperature protection includes a housing, an electromagnetic starter body inside the housing, a heat exhaust window on the side wall of the housing, a sliding door corresponding to the heat exhaust window on the inner side of the housing, an electric telescopic mechanism connected to the sliding door inside the housing, a first temperature sensor on the electromagnetic starter body, an air conditioning system installed on the housing, the air conditioning system including an indoor unit and an outdoor unit, the indoor unit on the inner wall of the housing, the outdoor unit on the outer side of the housing, a heat exchange pipe and a power cord between the outdoor unit and the indoor unit, a second temperature sensor on the outer side of the housing, and a controller inside the housing, the controller being connected to the air conditioning system, the first temperature sensor, the second temperature sensor, and the electric telescopic mechanism.
[0006] Preferably, the interior of the outer casing is provided with a fireproof and heat-insulating board.
[0007] Preferably, a dustproof net is installed inside the heat exhaust window on the outside of the closed door.
[0008] Preferably, there are multiple first temperature sensors and multiple second temperature sensors, with the multiple first temperature sensors distributed throughout the electromagnetic starter body and the second temperature sensors disposed throughout the outer casing.
[0009] Preferably, the indoor unit of the air conditioner and the heat exhaust window are symmetrically arranged about the electromagnetic starter body.
[0010] Compared to existing technologies, the advantages are:
[0011] This invention utilizes a second temperature sensor to monitor the external temperature. When the external temperature is too high, the air conditioning system is turned on to cool the interior of the casing, preventing overheating and providing high-temperature protection for the electromagnetic starter. Based on data from the first temperature sensor, when the internal temperature of the casing is high before the electromagnetic starter is activated, the sealed door is opened, allowing the cold air from the air conditioning system to blow out the high temperature generated during the operation of the electromagnetic soft starter through the heat dissipation window, thus expelling the heat from the casing and preventing a rapid increase in internal temperature. After the electromagnetic soft starter is turned off, the cooling process continues for a period of time, and then the sealed door is closed to provide high-temperature protection for the electromagnetic starter, preventing damage from high temperatures. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the internal structure of a high-voltage reactor-type electromagnetic starter with high-temperature protection according to this utility model.
[0013] Figure 2 This is a schematic diagram of the internal structure of a high-voltage reactor-type electromagnetic starter with high-temperature protection according to this utility model.
[0014] Figure 3 This is a top view schematic diagram of a high-voltage reactor-type electromagnetic starter with high-temperature protection according to this utility model.
[0015] In the diagram: 1. Outer shell; 2. Electromagnetic starter body; 3. Heat exhaust window; 4. Fireproof and heat insulation board; 5. Enclosed door; 6. Slide track; 7. Electric telescopic mechanism; 8. Dustproof net; 9. First temperature sensor; 10. Indoor unit of air conditioner; 11. Outdoor unit of air conditioner; 12. Second temperature sensor; 13. Controller; 14. Heat exchange pipe. Detailed Implementation
[0016] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 3 As shown:
[0017] Example 1: A high-voltage reactor-type electromagnetic starter with high-temperature protection includes a housing 1, an electromagnetic starter body 2 inside the housing 1, a door cover hinged to the front end of the housing 1, a heat exhaust window 3 on the side wall of the housing 1, a closing door 5 corresponding to the heat exhaust window 3 slidably disposed on the inner side of the housing 1, a sliding groove 6 on both sides of the heat exhaust window 3, the closing door 5 slidably disposed between the two sliding grooves 6, and an electric telescopic mechanism 7 connected to the closing door 5 inside the housing 1. The electric telescopic mechanism 7 controls the sliding of the closing door 5, and the closing door 5 is closed when it blocks the heat exhaust window 3.
[0018] The electromagnetic starter body 2 is equipped with a first temperature sensor 9, which measures the temperature data of the electromagnetic starter. An air conditioning system is installed on the outer casing 1, which includes an indoor air conditioning unit 10 and an outdoor air conditioning unit 11. The air conditioning system is existing technology and will not be described in detail here. The indoor air conditioning unit 10 is installed on the inner wall of the outer casing 1, and the outdoor air conditioning unit 11 is installed on the outside of the outer casing 1. A heat exchange pipe 14 and a power cord are installed between the outdoor air conditioning unit 11 and the indoor air conditioning unit 10. The air conditioning system blows cold air into the outer casing 1 to cool down the electromagnetic starter body 2 inside the outer casing 1.
[0019] A second temperature sensor 12 is provided on the outside of the outer casing 1. The second temperature sensor 12 measures the ambient temperature data outside the outer casing 1. A controller 13 is provided inside the outer casing 1. The controller 13 is connected to the air conditioning system, the first temperature sensor 9, the second temperature sensor 12 and the electric telescopic mechanism 7. The temperature data of the first temperature sensor 9 and the second temperature sensor 12 are transmitted to the controller 13. The controller 13 sends control signals to the air conditioning system and the electric telescopic mechanism 7 to control the opening and closing of the air conditioning system and the extension and retraction of the electric telescopic mechanism 7.
[0020] The second temperature sensor 12 monitors the external temperature. When the external temperature is too high, the air conditioning system is turned on to cool the inside of the outer casing 1 to prevent the inside of the outer casing 1 from overheating and to protect the electromagnetic starter from overheating. According to the data from the first temperature sensor 9, when the internal temperature of the outer casing 1 is high before the electromagnetic starter is turned on, the sealed door is opened and the cold air blown out by the air conditioning system is blown out through the heat dissipation window 3 to dissipate the heat inside the outer casing 1 and prevent the internal temperature of the outer casing 1 from rising rapidly.
[0021] Example 2: A high-voltage reactor-type electromagnetic starter with high-temperature protection includes a housing 1, an electromagnetic starter body 2 inside the housing 1, a door cover hinged to the front end of the housing 1, a heat exhaust window 3 on the side wall of the housing 1, and fireproof and heat-insulating plates 4 installed inside the housing 1 to reduce heat from the outside of the housing 1 entering the housing 1. A sealing door 5 corresponding to the heat exhaust window 3 is slidably installed on the inner side of the housing 1. Sliding grooves 6 are provided on both sides of the heat exhaust window 3, and the sealing door 5 is slidably installed between the two sliding grooves 6. An electric telescopic mechanism 7 connected to the sealing door 5 is installed inside the housing 1. The electric telescopic mechanism 7 controls the sliding of the sealing door 5. When the sealing door 5 blocks the heat exhaust window 3, it is closed. A dustproof net 8 is installed inside the heat exhaust window 3 outside the sealing door 5 to reduce dust entering the housing 1.
[0022] The electromagnetic starter body 2 is equipped with a first temperature sensor 9, which measures the temperature data of the electromagnetic starter. An air conditioning system is installed on the outer casing 1, which includes an indoor unit 10 and an outdoor unit 11. The air conditioning system is existing technology and will not be described in detail here. The indoor unit 10 is installed on the inner wall of the outer casing 1, and the outdoor unit 11 is installed on the outside of the outer casing 1. A heat exchange pipe 14 and a power cord are installed between the outdoor unit 11 and the indoor unit 10. The air conditioning system blows cold air into the outer casing 1 to cool the electromagnetic starter body 2 inside the outer casing 1. The indoor unit 10 and the heat exhaust window 3 are symmetrically arranged about the electromagnetic starter body 2, which facilitates the indoor unit 10 to blow the heat out of the outer casing 1.
[0023] A second temperature sensor 12 is installed on the outside of the outer casing 1. The second temperature sensor 12 measures the ambient temperature outside the outer casing 1. A controller 13 is installed inside the outer casing 1. The controller 13 is connected to the air conditioning system, the first temperature sensor 9, the second temperature sensor 12, and the electric telescopic mechanism 7. The temperature data of the first temperature sensor 9 and the second temperature sensor 12 are transmitted to the controller 13. The controller 13 sends control signals to the air conditioning system and the electric telescopic mechanism 7 to control the opening and closing of the air conditioning system and the extension and retraction of the electric telescopic mechanism 7. There are multiple first temperature sensors 9 and multiple second temperature sensors 12. Multiple first temperature sensors 9 are distributed in various parts of the electromagnetic starter body 2, and multiple second temperature sensors 12 are set in various parts of the outer casing 1. Multiple first temperature sensors 9 and multiple second temperature sensors 12 measure multiple data to avoid data errors due to the failure of a single sensor.
[0024] The specific working process is as follows: The second temperature sensor 12 monitors the external temperature. When the external temperature is too high, the controller 13 controls the air conditioning system to start and cool the inside of the outer casing 1 to prevent high temperature inside the outer casing 1 and to protect the electromagnetic starter from high temperature. According to the data from the first temperature sensor 9, when the internal temperature of the outer casing 1 is high before the electromagnetic starter is turned on, the controller 13 controls the electric telescopic mechanism 7 to open the sealed door and start the air conditioning system. The cold air blown out by the air conditioning system is blown out through the heat exhaust window 3 to exhaust the heat inside the outer casing 1 and prevent the temperature inside the outer casing 1 from rising rapidly. After the electromagnetic starter is turned off, the cooling continues for a period of time. Then the controller 13 controls the electric telescopic mechanism 7 to close the sealed door 5. When the temperature data of the first temperature sensor 9 and the second temperature sensor 12 are both lower than the corresponding set values, the controller 13 controls the air conditioning system to turn off.
[0025] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A high-voltage reactor-type electromagnetic starter with high-temperature protection, characterized in that: The device includes an outer shell (1), an electromagnetic starter body (2) inside the outer shell (1), a heat exhaust window (3) on the side wall of the outer shell (1), a closed door (5) corresponding to the heat exhaust window (3) sliding on the inner side of the outer shell (1), an electric telescopic mechanism (7) connected to the closed door (5) inside the outer shell (1), a first temperature sensor (9) on the electromagnetic starter body (2), an air conditioning system installed on the outer shell (1), the air conditioning system includes an indoor air conditioning unit (10) and an outdoor air conditioning unit (11), an indoor air conditioning unit (10) on the inner wall of the outer shell (1), an outdoor air conditioning unit (11) on the outside of the outer shell (1), a heat exchange pipe (14) and a power cord between the outdoor air conditioning unit (11) and the indoor air conditioning unit (10), a second temperature sensor (12) on the outside of the outer shell (1), and a controller (13) inside the outer shell (1), the controller (13) being connected to the air conditioning system, the first temperature sensor (9), the second temperature sensor (12) and the electric telescopic mechanism (7).
2. The high-voltage reactor-type electromagnetic starter with high-temperature protection as described in claim 1, characterized in that: The interior of the outer shell (1) is provided with fireproof and heat-insulating panels (4).
3. The high-voltage reactor-type electromagnetic starter with high-temperature protection as described in claim 1, characterized in that: A dustproof net (8) is installed inside the heat exhaust window (3) on the outside of the closed door (5).
4. A high-voltage reactor-type electromagnetic starter with high-temperature protection as described in claim 1, characterized in that: There are multiple first temperature sensors (9) and multiple second temperature sensors (12). Multiple first temperature sensors (9) are distributed in various places on the electromagnetic starter body (2), and the second temperature sensors (12) are set in various places on the outer shell (1).
5. A high-voltage reactor-type electromagnetic starter with high-temperature protection as described in claim 1, characterized in that: The indoor unit (10) of the air conditioner and the heat exhaust window (3) are symmetrically arranged about the electromagnetic starter body (2).