Heat dissipation structure of soft starter

Abstract

The utility model discloses a heat dissipation structure of a soft starter, which comprises a soft starter cabinet and a cooling liquid storage casing, a first temperature sensor is arranged at the top end in the soft starter cabinet, an aluminum alloy substrate is welded on one side in the soft starter cabinet, and a second temperature sensor is arranged on the other side in the soft starter cabinet. Vertical assembling reserved strips and transverse assembling reserved strips are evenly arranged on one side of the aluminum alloy base plate. According to the utility model, by installing the air inlet pipe and the like, when the device is used, on one hand, the top seat is started to cooperate with the air inlet pipe with the barometer, so that the interior of the soft starter cabinet can be vacuumized; on the other hand, the tank body filled with the inert gas is connected with the inert gas supplementing pipe fitting, and then the second electromagnetic valve is opened, so that the protective gas can be filled into the soft starter cabinet, and the problem that electrical equipment is damaged due to the fact that water vapor contained in air in the soft starter cabinet is liquefied during heat dissipation treatment can be solved; and the moistureproof and insect-proof protection of electrical equipment in the soft starter cabinet is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soft starters, in particular to a heat dissipation structure of a soft starter. Background Art

[0002] A soft starter is a novel motor control device. Its main components are a three-phase reverse parallel brake tube and an electronic control circuit connected in series between the power supply and the controlled motor. It integrates motor soft starting, soft stopping, light load energy saving and multiple protection functions. When the soft starter is running, it often produces a large heat loss effect. Based on this, it is necessary to install a heat dissipation structure inside the device. However, there are still some problems in the specific use of the heat dissipation structure of the soft starter.

[0003] The heat dissipation structure of the soft starter often only uses a single fan to achieve air cooling. This type of fan cooling is prone to poor heat dissipation when the external ambient temperature is high in summer, while ordinary water cooling is prone to liquefied water droplets contaminating electrical equipment and causing damage, which makes the device low in practicality and difficult to promote. Utility Model Content

[0004] The purpose of the utility model is to provide a heat dissipation structure of a soft starter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation structure of a soft starter, comprising a soft starter cabinet and a coolant storage casing, a first temperature sensor is installed at the top of the inside of the soft starter cabinet, an aluminum alloy substrate is welded to one side of the inside of the soft starter cabinet, a vertical assembly reserved strip and a horizontal assembly reserved strip are evenly arranged on one side of the aluminum alloy substrate, a heat exchange tube group is welded to the other side of the aluminum alloy substrate, the coolant storage casing is fixed to the outer side wall of the soft starter cabinet, the coolant storage casing and the heat exchange tube group A circulating liquid guiding pipe is connected between the cabinet and the soft starter cabinet, and a first solenoid valve and a water pump are installed at both ends of the circulating liquid guiding pipe respectively; semiconductor refrigeration plates are evenly fixed on the side of the coolant storage casing away from the soft starter cabinet; a top seat is installed on the top of the soft starter cabinet by screws, a vacuum pump is installed inside the top seat, an air intake pipe is connected between the vacuum pump and the soft starter cabinet, and a pressure gauge is installed on the air intake pipe; an inert gas supply pipe is fixed to the bottom end of the inside of the soft starter cabinet, and a second solenoid valve is installed on the inert gas supply pipe.

[0006] Preferably, the vertical assembly reserved strip is evenly provided with first fixing screw holes arranged at equal intervals, so that the corresponding electrical equipment can be easily fixed on the vertical assembly reserved strip by screws.

[0007] Preferably, the transverse assembly reserved strip is evenly provided with second fixing screw holes arranged at equal intervals, so that the corresponding electrical equipment can be easily fixed on the transverse assembly reserved strip by screws.

[0008] Preferably, a second temperature sensor is installed at the top of the interior of the coolant storage housing to facilitate intelligent monitoring of the operating temperature of the coolant.

[0009] Preferably, a cooling end is provided on the side of the semiconductor refrigeration plate close to the coolant storage casing, and a heating end is provided on the side of the semiconductor refrigeration plate away from the coolant storage casing. A fan matching the heating end is installed on the coolant storage casing, so that the semiconductor refrigeration plate can be protected from heat dissipation and the cooling treatment effect of the semiconductor refrigeration plate on the coolant is optimized.

[0010] Preferably, a fixing arm is welded on the fan, and screws are evenly arranged between the fixing arm and the coolant storage casing, so that the fan can be independently disassembled and maintained.

[0011] Preferably, the heat exchange tube group includes vertical copper alloy heat exchange tubes and transverse copper alloy heat exchange tubes, which increases the heat conduction area of ​​the heat exchange tube group and improves the heat dissipation efficiency of the internal components of the soft starter cabinet.

[0012] Preferably, an air outlet pipe is provided at the output end of the vacuum pump, and a filter is provided inside the air outlet pipe, so that the structure of the vacuum pump is optimized.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The heat dissipation structure of the soft starter optimizes its own performance by installing semiconductor refrigeration sheets and fans, etc. The refrigeration mechanism composed of semiconductor refrigeration sheets and fans can refrigerate the coolant inside the coolant storage casing, and then cooperate with the temperature monitoring function of the second temperature sensor to facilitate the external control device to adjust the use temperature of the coolant. Then, the water pump and the first solenoid valve are started to drive the coolant to circulate between the coolant storage casing and the heat exchange tube group, so that heat conduction and heat exchange treatment occur between the heat exchange tube group and the internal environment of the soft starter cabinet to achieve heat dissipation protection function. Compared with the common fan heat dissipation, it solves the problem of poor heat dissipation caused by the high external environment temperature in summer, thereby enabling the device to achieve efficient heat dissipation function;

[0015] (2) The heat dissipation structure of the soft starter is equipped with a pressure gauge and an air inlet pipe, so that when the device is actually operated, on the one hand, the top seat is started and the air inlet pipe with the pressure gauge is used to evacuate the inside of the soft starter cabinet. On the other hand, the tank filled with inert gas is connected to the inert gas supply pipe, and then the second solenoid valve is opened to fill the protective gas into the soft starter cabinet. This can solve the problem of damage to electrical equipment caused by liquefaction of water vapor contained in the air inside the soft starter cabinet during heat dissipation, and also improve the moisture and insect protection of electrical equipment inside the soft starter cabinet.

[0016] (3) The heat dissipation structure of the soft starter is optimized by installing a fixed arm and a coolant storage casing, etc. On the one hand, by welding a fixed arm on the fan and evenly arranging screws between the fixed arm and the coolant storage casing, the fan can be independently disassembled and maintained. On the other hand, by adding a vertical assembly reserved strip with a first fixing screw hole and a horizontal assembly reserved strip with a second fixing screw hole on the aluminum alloy substrate, it is convenient for the user to fix the electrical equipment on the aluminum alloy substrate with screws, thereby adding an assembly structure to the heat dissipation mechanism and facilitating the electrical equipment to contact the aluminum alloy substrate, thereby improving the heat conduction and heat dissipation effect between the electrical equipment and the heat exchange tube group on the back of the aluminum alloy substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a rear view structural diagram of the utility model;

[0019] Figure 3 This is a rear view structural diagram of the aluminum alloy substrate of the utility model;

[0020] Figure 4 This is a schematic diagram of the front view structure of the top seat of the utility model;

[0021] Figure 5 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. first fixing screw hole; 2. vertical assembly reserved strip; 3. second fixing screw hole; 4. top seat; 5. first temperature sensor; 6. aluminum alloy base plate; 7. horizontal assembly reserved strip; 8. soft starter cabinet; 9. circulating liquid guide pipe; 10. second temperature sensor; 11. coolant storage casing; 12. semiconductor refrigeration plate; 13. fan; 14. water pump; 15. fixed arm; 16. first solenoid valve; 17. heat exchange tube group; 18. vertical copper alloy heat exchange tube; 19. horizontal copper alloy heat exchange tube; 20. barometer; 21. vacuum pump; 22. outlet pipe; 23. inlet pipe; 24. second solenoid valve; 25. inert gas supply pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides an embodiment: a heat dissipation structure of a soft starter, comprising a soft starter cabinet 8 and a coolant storage housing 11, a first temperature sensor 5 is installed at the top of the inside of the soft starter cabinet 8, an aluminum alloy substrate 6 is welded on one side of the inside of the soft starter cabinet 8, a vertical assembly reserved strip 2 and a horizontal assembly reserved strip 7 are evenly arranged on one side of the aluminum alloy substrate 6, and a heat exchange tube group 17 is welded on the other side of the aluminum alloy substrate 6;

[0025] The vertical assembly reserved strip 2 is evenly provided with first fixing screw holes 1 arranged at equal intervals, so that the corresponding electrical equipment can be fixedly installed on the vertical assembly reserved strip 2 by screws;

[0026] The horizontal assembly reserved strip 7 is evenly provided with second fixing screw holes 3 arranged at equal intervals, so that the corresponding electrical equipment can be fixedly installed on the horizontal assembly reserved strip 7 by screws;

[0027] The coolant storage housing 11 is fixed to the outer wall of the soft starter cabinet 8, a circulating liquid guide pipe 9 is connected between the coolant storage housing 11 and the heat exchange pipe group 17, a first solenoid valve 16 and a water pump 14 are respectively installed at both ends of the circulating liquid guide pipe 9, and a semiconductor refrigeration sheet 12 is evenly fixed on one side of the coolant storage housing 11 away from the soft starter cabinet 8;

[0028] A second temperature sensor 10 is installed at the top of the coolant storage housing 11 to facilitate intelligent monitoring of the coolant's operating temperature;

[0029] A cooling end is arranged on one side of the semiconductor refrigeration sheet 12 close to the coolant storage housing 11, and a heating end is arranged on one side of the semiconductor refrigeration sheet 12 away from the coolant storage housing 11. A fan 13 matching the heating end is installed on the coolant storage housing 11, so that the semiconductor refrigeration sheet 12 can be heat-dissipated and protected, and the cooling treatment effect of the semiconductor refrigeration sheet 12 on the coolant is optimized;

[0030] A fixing arm 15 is welded on the fan 13, and screws are evenly arranged between the fixing arm 15 and the coolant storage housing 11, so that the fan 13 can be independently disassembled and maintained;

[0031] The heat exchange tube group 17 includes a vertical copper alloy heat exchange tube 18 and a horizontal copper alloy heat exchange tube 19, which increases the heat conduction area of ​​the heat exchange tube group 17 and improves the heat dissipation efficiency of the internal components of the soft starter cabinet 8;

[0032] When in use, the refrigeration mechanism composed of the semiconductor refrigeration sheet 12 and the fan 13 can refrigerate the coolant inside the coolant storage housing 11, and then cooperate with the temperature monitoring function of the second temperature sensor 10 to facilitate the external control device to adjust the use temperature of the coolant, and then start the water pump 14 and the first solenoid valve 16, which can drive the coolant to circulate between the coolant storage housing 11 and the heat exchange tube group 17, so that heat conduction and heat exchange processing occurs between the heat exchange tube group 17 and the internal environment of the soft starter cabinet 8 to achieve the heat dissipation protection function. Compared with the common fan heat dissipation, it solves the problem of poor heat dissipation caused by the high external environment temperature in summer, thereby enabling the device to achieve efficient heat dissipation function;

[0033] A top seat 4 is installed on the top of the soft starter cabinet 8 by screws, a vacuum pump 21 is installed inside the top seat 4, an air intake pipe 23 is connected between the vacuum pump 21 and the soft starter cabinet 8, and a pressure gauge 20 is installed on the air intake pipe 23, an inert gas air supply pipe 25 is fixed to the bottom end of the inside of the soft starter cabinet 8, and a second solenoid valve 24 is installed on the inert gas air supply pipe 25;

[0034] An air outlet pipe 22 is disposed at the output end of the vacuum pump 21 , and a filter screen is disposed inside the air outlet pipe 22 , so that the structure of the vacuum pump 21 is optimized.

[0035] When the embodiment of the present application is in use: an external power supply and a control device are connected, and a refrigeration mechanism composed of a semiconductor refrigeration sheet 12 and a fan 13 can be used to refrigerate the coolant inside the coolant storage casing 11, and then cooperate with the temperature monitoring function of the second temperature sensor 10 to facilitate the external control device to adjust the use temperature of the coolant, and then start the water pump 14 and the first solenoid valve 16, which can drive the coolant to circulate between the coolant storage casing 11 and the heat exchange tube group 17, so that heat conduction and heat exchange treatment occurs between the heat exchange tube group 17 and the internal environment of the soft starter cabinet 8 to achieve a heat dissipation protection function. Compared with the common fan heat dissipation, it solves the problem of poor heat dissipation caused by the high external environment temperature in summer, thereby enabling the device to achieve a high-efficiency heat dissipation function. At the same time, on the one hand, by starting the top seat 4 and cooperating with the air inlet pipe 23 with the barometer 20, the interior of the soft starter cabinet 8 can be evacuated, and on the other hand, the tank filled with inert gas and the inert gas replenishment By connecting the air pipe 25 and then opening the second solenoid valve 24, the protective gas can be filled into the soft starter cabinet 8. This can solve the problem of damage to the electrical equipment caused by the liquefaction of water vapor contained in the air inside the soft starter cabinet 8 during heat dissipation, and also improves the moisture-proof and insect-proof protection of the electrical equipment inside the soft starter cabinet 8. In addition, on the one hand, by welding a fixed arm 15 on the fan 13, and evenly arranging screws between the fixed arm 15 and the coolant storage casing 11, the independent disassembly and maintenance of the fan 13 can be achieved. On the other hand, by adding a vertical assembly reserved strip 2 with a first fixing screw hole 1 and a horizontal assembly reserved strip 7 with a second fixing screw hole 3 to the aluminum alloy substrate 6, it is convenient for the user to fix the electrical equipment on the aluminum alloy substrate 6 by screws, so that the assembly structure is added to the heat dissipation mechanism, and it is convenient for the electrical equipment to contact the aluminum alloy substrate 6 to enhance the heat conduction and heat dissipation effect between it and the heat exchange tube group 17 on the back of the aluminum alloy substrate 6.

Claims

1. A heat dissipation structure of a soft starter, characterized in that: The invention comprises a soft starter cabinet (8) and a coolant storage casing (11), wherein a first temperature sensor (5) is installed at the top of the inside of the soft starter cabinet (8), an aluminum alloy substrate (6) is welded to one side of the inside of the soft starter cabinet (8), a vertical assembly reserved strip (2) and a horizontal assembly reserved strip (7) are evenly arranged on one side of the aluminum alloy substrate (6), a heat exchange tube group (17) is welded to the other side of the aluminum alloy substrate (6), the coolant storage casing (11) is fixed to the outer side wall of the soft starter cabinet (8), a circulating liquid guide pipe (9) is connected between the coolant storage casing (11) and the heat exchange tube group (17), and both sides of the circulating liquid guide pipe (9) are connected to the outer side wall of the soft starter cabinet (8). A first solenoid valve (16) and a water pump (14) are respectively installed at the two ends; a semiconductor refrigeration plate (12) is evenly fixed on the side of the coolant storage casing (11) away from the soft starter cabinet (8); a top seat (4) is installed on the top of the soft starter cabinet (8) by screws; a vacuum pump (21) is installed inside the top seat (4); an air intake pipe (23) is connected between the vacuum pump (21) and the soft starter cabinet (8), and a pressure gauge (20) is installed on the air intake pipe (23); an inert gas air supply pipe (25) is fixed at the bottom end of the inside of the soft starter cabinet (8), and a second solenoid valve (24) is installed on the inert gas air supply pipe (25).

2. The heat dissipation structure of a soft starter according to claim 1, characterized in that: The vertical assembly reserved strip (2) is evenly provided with first fixing screw holes (1) arranged at equal intervals.

3. The heat dissipation structure of a soft starter according to claim 1, characterized in that: The transverse assembly reserved strip (7) is evenly provided with second fixing screw holes (3) arranged at equal intervals.

4. The heat dissipation structure of a soft starter according to claim 1, characterized in that: A second temperature sensor (10) is installed at the top end of the interior of the coolant storage housing (11).

5. The heat dissipation structure of a soft starter according to claim 1, characterized in that: A cooling end is provided on a side of the semiconductor refrigeration sheet (12) close to the cooling liquid storage casing (11), a heating end is provided on a side of the semiconductor refrigeration sheet (12) away from the cooling liquid storage casing (11), and a fan (13) matching the heating end is installed on the cooling liquid storage casing (11).

6. The heat dissipation structure of a soft starter according to claim 5, characterized in that: A fixing arm (15) is welded on the fan (13), and screws are evenly arranged between the fixing arm (15) and the coolant storage casing (11).

7. The heat dissipation structure of a soft starter according to claim 1, characterized in that: The heat exchange tube group (17) comprises vertical copper alloy heat exchange tubes (18) and transverse copper alloy heat exchange tubes (19).

8. The heat dissipation structure of a soft starter according to claim 1, characterized in that: An air outlet pipe (22) is provided at the output end of the vacuum pump (21), and a filter screen is provided inside the air outlet pipe (22).

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