Excitation system power cabinet heat dissipation and temperature measurement structure

Abstract

The utility model relates to the technical field of excitation system power cabinets, and discloses an excitation system power cabinet heat dissipation and temperature measurement structure, which comprises a power cabinet main body, the inner wall of the power cabinet main body is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is fixedly connected with a first sliding frame, the inside of the power cabinet main body is rotatably connected with a knob, and the first sliding frame is fixedly connected with a second sliding frame. The outer wall of the first sliding frame is fixedly connected with a first lead screw, the outer wall of the first lead screw is in threaded connection with the interior of the first sliding frame, the outer wall of the first sliding frame is rotationally connected with a rotating plate, and a sliding groove is formed in the rotating plate. The rotary knob is rotated to drive the first lead screw to rotate, the first lead screw drives the first sliding frame to slide, the first sliding frame drives the rotating plate to rotate, temperature measuring probes of different sizes and specifications can be installed, installation is stable, the temperature measuring probes are prevented from being collided and falling off in the using process, and when the temperature measuring probes need to be maintained or replaced, only the rotary knob needs to be rotated reversely, and operation is convenient. Therefore, the temperature measuring probe is simple to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of excitation system power cabinets, and in particular to a heat dissipation and temperature measurement structure for excitation system power cabinets. Background Technology

[0002] The excitation system power cabinet is a key component of the excitation system. It converts the input AC power into DC current, providing excitation current to the rotor windings of the generator or motor, establishing a magnetic field, and enabling the generator to generate electricity or the motor to operate normally. Depending on the operating status and control requirements of the generator or motor, the output excitation current is automatically or manually adjusted to maintain stable generator terminal voltage and control motor speed and torque, etc.

[0003] The temperature of the excitation system power cabinet is one of the important indicators for ensuring the normal operation of the generator. When the temperature of the electronic components inside the power cabinet is too high, the performance of these components will degrade. For example, the triggering characteristics of thyristors may change, causing them to be unable to conduct and turn off accurately, thus affecting the normal operation of the excitation system. High temperatures may also cause the performance of the insulation materials inside the power cabinet to degrade, increasing the risk of insulation breakdown and thus triggering short-circuit faults.

[0004] To control the temperature inside the excitation system power cabinet, a heat dissipation and temperature measurement structure is usually set up for detection and adjustment. Temperature detectors are installed for real-time monitoring. However, there are many types of temperature probes available, with different sizes and specifications, making them difficult to install. Furthermore, temperature probes are usually fixed inside the cabinet, making them difficult to disassemble and repair if damaged. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a heat dissipation and temperature measurement structure for the power cabinet of an excitation system, which aims to improve the problems of inconsistent size and specifications of temperature probes, difficulty in installation, and difficulty in disassembly and repair if damaged.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A heat dissipation and temperature measurement structure for a power cabinet in an excitation system includes a power cabinet body. A telescopic rod is fixedly connected to the inner wall of the power cabinet body, and a sliding frame is fixedly connected to the outer wall of the telescopic rod. A knob is rotatably connected inside the power cabinet body. A lead screw is fixedly connected to the outer wall of the sliding frame, and the lead screw is threaded into the interior of the sliding frame. A rotating plate is rotatably connected to the outer wall of the sliding frame. A sliding groove is formed inside the rotating plate, and a slider is slidably connected inside the rotating plate. The outer wall of the slider is slidably connected to the interior of the groove. A fixed plate is fixedly connected to the inner wall of the power cabinet body, and the bottom end of the slider is fixedly connected to the upper surface of the fixed plate. A temperature probe is provided on the outer wall of the rotating plate. A water-cooling assembly is provided on the outer wall of the power cabinet body to provide water cooling.

[0008] Preferably, the water-cooling assembly includes a coolant tank, the outer wall of which is fixedly connected to the outer wall of the power cabinet body, a water pump fixedly connected to the inner wall of the coolant tank, and a placement rack fixedly connected to the output end of the water pump, the outer wall of which is fixedly connected to the inner wall of the power cabinet body.

[0009] Preferably, an air outlet is provided inside the left side of the power cabinet body, and an air outlet is provided inside the upper side of the power cabinet body.

[0010] Preferably, an intake fan is provided inside the right side of the power cabinet body, and an intake filter is provided on the outer right side of the power cabinet body.

[0011] Preferably, a support plate is fixedly connected to the outer wall of the power cabinet body, and a slotted plate is fixedly connected to the outer wall of the support plate, with the outer wall of the slotted plate fixedly connected to the outer wall of the power cabinet body.

[0012] Preferably, a hydraulic cylinder is fixedly connected to the upper surface of the support plate, and the output end of the hydraulic cylinder passes through the interior of the support plate and is fixedly connected to a sliding frame.

[0013] Preferably, the outer wall of the sliding frame two is slidably connected to the inside of the slotted plate, and the inside of the slotted plate is rotatably connected to a bevel gear one, the tooth end of the bevel gear one being meshed with a bevel gear two.

[0014] Preferably, the bevel gear one is internally threaded with a lead screw two, the top end of the lead screw two is fixedly connected to the lower surface of the support plate, and the bottom end of the lead screw two is fixedly connected to the outer wall of the power cabinet body.

[0015] Preferably, the outer wall of the second bevel gear is fixedly connected to a slide rod, the outer wall of the second bevel gear is rotatably connected to the inside of the second sliding frame, and the outer wall of the slide rod is slidably connected to the inside of the slotted plate.

[0016] Preferably, a cleaning cylinder is fixedly connected to the outer wall of the slide rod, and the outer wall of the cleaning cylinder is slidably connected to the outer wall of the air inlet filter.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, rotating the knob drives the lead screw to rotate, the lead screw drives the sliding frame to slide, and the sliding frame drives the rotating plate to rotate, so as to install temperature probes of different sizes and specifications. The installation is stable and avoids collisions and falling during use. When it is necessary to repair or replace the temperature probe, simply rotate the knob in the opposite direction to remove the temperature probe. The operation is simple.

[0019] 2. In this utility model, the cooperation of the inlet fan, the first outlet, and the second outlet forms a good air duct, which continuously blows air onto the main body of the power cabinet, thereby dissipating heat from the main body of the power cabinet. When the outer wall of the inlet filter is covered with dust, the hydraulic cylinder is activated to drive the sliding frame two to slide. The first bevel gear drives the sliding rod to rotate through the second bevel gear, which can realize the automatic cleaning of the inlet filter by the cleaning cylinder, prevent dust from clogging the inlet filter, avoid affecting the heat dissipation and air intake, and thus ensure the normal operation of heat dissipation. Attached Figure Description

[0020] Figure 1 A perspective view of a heat dissipation and temperature measurement structure for a power cabinet in an excitation system proposed in this utility model;

[0021] Figure 2 This is a partial structural diagram of the slider of a heat dissipation and temperature measurement structure for a power cabinet in an excitation system proposed in this utility model.

[0022] Figure 3 This is a partial structural diagram of a water pump for a heat dissipation and temperature measurement structure of a power cabinet in an excitation system proposed in this utility model.

[0023] Figure 4 This is a partial structural diagram of a bevel gear in the heat dissipation and temperature measurement structure of the power cabinet of the excitation system proposed in this utility model.

[0024] Legend:

[0025] 1. Power cabinet body; 2. Telescopic rod; 3. Sliding frame one; 4. Knob; 5. Lead screw one; 6. Rotating plate; 7. Slide groove; 8. Slider; 9. Fixing plate; 10. Temperature probe; 11. Coolant tank; 12. Water pump; 13. Placement rack; 14. Inlet fan; 15. Inlet air filter; 16. Outlet one; 17. Outlet two; 18. Support plate; 19. Slotted plate; 20. Hydraulic cylinder; 21. Sliding frame two; 22. Bevel gear one; 23. Lead screw two; 24. Bevel gear two; 25. Slide rod; 26. Cleaning cylinder. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-3 This utility model provides an embodiment of a heat dissipation and temperature measurement structure for a power cabinet in an excitation system, comprising a power cabinet body 1, a telescopic rod 2 fixedly connected to the inner wall of the power cabinet body 1, a sliding frame 3 fixedly connected to the outer wall of the telescopic rod 2, a knob 4 rotatably connected inside the power cabinet body 1, a lead screw 5 fixedly connected to the outer wall of the sliding frame 3, the lead screw 5 being threadedly connected to the inner wall of the sliding frame 3, a rotating plate 6 rotatably connected to the outer wall of the sliding frame 3, a groove 7 being provided inside the rotating plate 6, a slider 8 slidably connected inside the rotating plate 6, the outer wall of the slider 8 being slidably connected to the inner wall of the power cabinet body 1, a fixing plate 9 fixedly connected to the inner wall of the power cabinet body 1, the bottom end of the slider 8 being fixedly connected to the upper surface of the fixing plate 9, a temperature probe 10 being provided on the outer wall of the rotating plate 6, and a water cooling assembly being provided on the outer wall of the power cabinet body 1 for providing water cooling.

[0028] Specifically, the temperature probe 10 can be a resistance temperature detector (RTD) probe, which uses the characteristic that the resistance value of a metal or semiconductor material changes with temperature to measure the temperature. The knob 4 passes through the power cabinet body 1 and is connected to the lead screw 5. Rotating the knob 4 causes the lead screw 5 to rotate. The power cabinet body 1 supports the rotation of the knob 4. The lead screw 5 causes the sliding frame 3 to slide. The telescopic rod 2 supports the sliding frame 3 to slide. The sliding frame 3 causes the rotating plate 6 to rotate. The slide groove 7 slides inside the slider 8, which restricts the rotation of the rotating plate 6 and can fix or loosen the temperature probe 10.

[0029] Reference Figure 1 and Figure 3 The water-cooling assembly includes a coolant tank 11, the outer wall of which is fixedly connected to the outer wall of the power cabinet body 1, a water pump 12 is fixedly connected to the inner wall of the coolant tank 11, and a placement rack 13 is fixedly connected to the output end of the water pump 12. The outer wall of the placement rack 13 is fixedly connected to the inner wall of the power cabinet body 1.

[0030] Specifically, the rack 13 is used to place some parts that require heat dissipation. The water pump 12 is started to draw coolant from the coolant tank 11. The water pump 12 delivers coolant to the rack 13 through water pipes. The rack 13 is equipped with a circulation pipeline. After the coolant leaves the rack 13, it is transported back to the coolant tank 11 through water pipes.

[0031] Reference Figure 1, Figure 3 and Figure 4 An air outlet 16 is provided inside the left side of the power cabinet body 1, and an air outlet 17 is provided inside the upper side of the power cabinet body 1; an air intake fan 14 is provided inside the right side of the power cabinet body 1, and an air intake filter 15 is provided on the outer wall of the right side of the power cabinet body 1.

[0032] Specifically, exhaust fans are installed inside air outlet 16 and air outlet 2 17. Cold air is drawn into the power cabinet body 1 by the intake fan 14 and then discharged through air outlet 16 and air outlet 2 17, forming a stable channel.

[0033] Reference Figure 1 , Figure 3 and Figure 4 A support plate 18 is fixedly connected to the outer wall of the power cabinet body 1. A slotted plate 19 is fixedly connected to the outer wall of the support plate 18. The outer wall of the slotted plate 19 is fixedly connected to the outer wall of the power cabinet body 1. A hydraulic cylinder 20 is fixedly connected to the upper surface of the support plate 18. The output end of the hydraulic cylinder 20 passes through the interior of the support plate 18 and is fixedly connected to a sliding frame 21. The outer wall of the sliding frame 21 is slidably connected to the interior of the slotted plate 19. A bevel gear 22 is rotatably connected inside the slotted plate 19. The tooth ends of the bevel gear 22 are meshed with a bevel gear. 24; the internal thread of bevel gear 12 is connected to lead screw 23, the top end of lead screw 23 is fixedly connected to the lower surface of support plate 18, and the bottom end of lead screw 23 is fixedly connected to the outer wall of power cabinet body 1; the outer wall of bevel gear 24 is fixedly connected to slide rod 25, the outer wall of bevel gear 24 is rotatably connected to the inside of slide frame 21, and the outer wall of slide rod 25 is slidably connected to the inside of slotted plate 19; the outer wall of slide rod 25 is fixedly connected to cleaning cylinder 26, and the outer wall of cleaning cylinder 26 is slidably connected to the outer wall of air inlet filter 15.

[0034] Specifically, the support plate 18 fixes the hydraulic cylinder 20. When the hydraulic cylinder 20 is started, it drives the sliding frame 21 to slide. The slotted plate 19 supports the sliding frame 21 to slide. The sliding frame 21 simultaneously drives the bevel gear 24 and the bevel gear 12 to rise and fall. When the bevel gear 12 rises and falls on the outer wall of the screw 23, the bevel gear 12 starts to rotate. The bevel gear 12 meshes with the bevel gear 24 and rotates. The bevel gear 24 drives the slide rod 25 to rotate, so that the slide rod 25 rotates when it rises and falls. The slotted plate 19 can support the slide rod 25 to slide. The slide rod 25 drives the cleaning cylinder 26 to rotate and clean when it slides on the outer wall of the air inlet filter 15.

[0035] Working principle: When using this power cabinet, components with high heat generation requiring centralized heat dissipation are placed on the upper surface of the mounting rack 13. The water pump 12 is started to draw water from the coolant tank 11, and the coolant is fed into the mounting rack 13 through a water pipe from the output of the pump 12, and then transported back into the coolant tank 11 through the water pipe. The left side of the power cabinet has an air outlet 16, the right side has an air inlet, and there is auxiliary air outlet on the top. The intake fan 14 delivers cool air into the main body of the power cabinet 1. The intake filter 15 filters dust and impurities to prevent them from entering the main body of the power cabinet 1. When the outer wall of the intake filter 15 is covered with dust, the hydraulic cylinder 20 is activated to drive the sliding frame 21. The sliding frame 21 drives the sliding rod 25 to slide via the bevel gear 24. Simultaneously, the sliding frame 21 drives the bevel gear 22 to rise and fall. The bevel gear 22 moves up and down on the outer wall of the lead screw 23. The lead screw 23 causes the bevel gear 22 to rotate, which in turn drives the bevel gear 24 to rotate, which in turn drives the slide rod 25 to rotate. This allows the cleaning cylinder 26 to slide up and down while rotating on the outer wall of the air inlet filter 15 to clean it. When the temperature probe 10 needs to be replaced or repaired, the knob 4 is turned to drive the lead screw 5 to rotate. The lead screw 5 drives the slide frame 3 to slide, and the slide frame 3 drives the rotating plate 6 to rotate. At the same time, the slider 8 slides inside the slide groove 7. The rotating plate 6 can fix or loosen the temperature probe 10. This power cabinet not only facilitates the installation and removal of temperature probes 10 of different specifications, but also forms a good air circulation through a stable air duct, and can also clean the air inlet filter 15 to ensure ventilation.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation temperature measurement structure of an excitation system power cabinet, comprising a power cabinet main body (1), characterized in that: The inner wall of the power cabinet body (1) is fixedly connected with a telescopic rod (2), the outer wall of the telescopic rod (2) is fixedly connected with a sliding frame one (3), the inside of the power cabinet body (1) is rotatably connected with a knob (4), the outer wall of the sliding frame one (3) is fixedly connected with a lead screw one (5), the outer wall of the lead screw one (5) is threadedly connected in the inside of the sliding frame one (3), the outer wall of the sliding frame one (3) is rotatably connected with a rotating plate (6), the inside of the rotating plate (6) is provided with a sliding groove (7), the inside of the rotating plate (6) is slidably connected with a sliding block (8), the outer wall of the sliding block (8) is slidably connected in the inside of the sliding groove (7), the inner wall of the power cabinet body (1) is fixedly connected with a fixed plate (9), the bottom end of the sliding block (8) is fixedly connected to the upper surface of the fixed plate (9), the outer wall of the rotating plate (6) is provided with a temperature measuring probe (10), the outer wall of the power cabinet body (1) is provided with a water cooling assembly, and the water cooling assembly is used to provide water cooling.

2. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 1, characterized in that: The water cooling assembly comprises a cooling liquid tank (11), the outer wall of the cooling liquid tank (11) is fixedly connected to the outer wall of the power cabinet body (1), the inner wall of the cooling liquid tank (11) is fixedly connected with a water pump (12), the output end of the water pump (12) is fixedly connected with a placing rack (13), and the outer wall of the placing rack (13) is fixedly connected to the inner wall of the power cabinet body (1).

3. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 1, characterized in that: The left side of the power cabinet body (1) is internally provided with an air outlet one (16), and the upper side of the power cabinet body (1) is internally provided with an air outlet two (17).

4. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 1, characterized in that: The right side of the power cabinet body (1) is internally provided with an air inlet fan (14), and the right side of the power cabinet body (1) is externally provided with an air inlet filter screen (15).

5. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 1, characterized in that: The outer wall of the power cabinet body (1) is fixedly connected with a supporting plate (18), the outer wall of the supporting plate (18) is fixedly connected with a slotted plate (19), and the outer wall of the slotted plate (19) is fixedly connected to the outer wall of the power cabinet body (1).

6. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 5, characterized in that: The upper surface of the supporting plate (18) is fixedly connected with a hydraulic cylinder (20), the output end of the hydraulic cylinder (20) penetrates the inside of the supporting plate (18) and is fixedly connected with a sliding frame two (21).

7. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 6, characterized in that: The outer wall of the sliding frame two (21) is slidably connected in the inside of the slotted plate (19), the inside of the slotted plate (19) is rotatably connected with a bevel gear one (22), and the tooth end of the bevel gear one (22) is meshedly connected with a bevel gear two (24).

8. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 7, characterized in that: The inside of the bevel gear one (22) is threadedly connected with a lead screw two (23), the top end of the lead screw two (23) is fixedly connected to the lower surface of the supporting plate (18), and the bottom end of the lead screw two (23) is fixedly connected to the outer wall of the power cabinet body (1).

9. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 7, characterized in that: The outer wall of the bevel gear two (24) is fixedly connected with a sliding rod (25), the outer wall of the bevel gear two (24) is rotatably connected in the inside of the sliding frame two (21), and the outer wall of the sliding rod (25) is slidably connected in the inside of the slotted plate (19).

10. The heat-dissipation temperature measurement structure of a power cabinet of an excitation system according to claim 9, characterized in that: The outer wall of the slide rod (25) is fixedly connected with a cleaning cylinder (26), and the outer wall of the cleaning cylinder (26) is slidingly connected to the outer wall of the air inlet filter screen (15).

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