A high-power servo drive structure

Abstract

The present application discloses a high-power servo drive structure, comprising a chassis with an inner cavity; a plurality of electrical components installed in the inner cavity of the chassis for controlling the operation of an external servo motor; a cold air generating mechanism for generating a cold air flow to dissipate heat for the electrical components in the inner cavity of the chassis, the heat generated by each electrical component during operation is transferred to the inner cavity of the chassis, a continuous cold air flow is generated by the cold air generating mechanism to flow through the surface of the electrical components to cool the electrical components, and the electrical components are operated at a low temperature; in this way, the influence of the external temperature on the internal temperature of the chassis is reduced, the electrical components installed therein can still be effectively cooled under high ambient temperature conditions, and the service life, safety and practicality of the servo drive are improved.

Description

Technical Field

[0001] The invention relates to a high-power servo driver structure. Background Art

[0002] A servo drive, also known as a servo controller or servo amplifier, is a controller used to control a servo motor. Its function is similar to that of a frequency converter on an ordinary AC motor. It is part of a servo system and is mainly used in high-precision positioning systems. It generally controls the servo motor in three ways: position, speed, and torque to achieve high-precision transmission system positioning. It is currently a high-end product in transmission technology. Currently, mainstream servo drives all use digital signal processors as the control core, which can implement relatively complex control algorithms and achieve digitization, networking, and intelligence.

[0003] Patent No. CN213151946U discloses an automatic heat dissipation type servo motor driver, which receives the heat of the driving component through a thermal expansion plate, and controls the contact and connection between the power plate and the metal plate through the thermal expansion and contraction of the thermal expansion plate, thereby controlling the operation of the cooling fan. A heat sink is fixedly installed on the upper part of the device body, and a through groove is opened in the heat sink and inside the heat sink, and through holes are opened on both sides of the through groove, so as to increase the heat dissipation efficiency of the device, and cool the device through the cooling fan in the middle of the heat sink, thereby facilitating the heat dissipation of the device.

[0004] At present, the automatic heat dissipation servo motor driver disclosed in the above patent has certain technical deficiencies:

[0005] 1. The cooling fan is used for heat dissipation. However, the existing servo motor driver will directly turn on the cooling fan when it starts working. However, when the servo motor driver starts working, the temperature is low. Turning on the cooling fan directly is a waste of energy.

[0006] 2. It is inefficient to only rely on the cooling fan to introduce natural wind into the device body to cool the electrical components placed therein. When the ambient temperature is high, the electrical components cannot be effectively cooled, which may easily lead to burning of the electrical components.

[0007] 3. When the temperature of an electrical component is abnormal, the alarm cannot be issued in time to inform the staff. By the time the staff finds out, the equipment has often stopped running, resulting in work suspension, or even the burning of the electrical component, which in turn damages other electrical components, causing greater losses;

[0008] 4. It is impossible to urgently cool down a single electrical component with abnormal temperature to suppress its temperature, resulting in staff often not having enough time to rush to the scene to deal with it. Summary of the invention

[0009] The present invention aims to solve one of the technical problems existing in the prior art.

[0010] The present application provides a high-power servo drive structure, comprising:

[0011] a chassis having an inner cavity;

[0012] Electrical components, which are in multiple numbers and are installed in the inner cavity of the chassis to control the operation of the external servo motor;

[0013] The cold air generating mechanism is used to generate cold air flow to dissipate heat for the electrical components located in the inner cavity of the chassis.

[0014] By adopting the above-mentioned high-power servo drive structure, the heat generated by each electrical component during operation is transferred to the inner cavity of the chassis, and a continuous stream of cold air is generated by the cold air generating mechanism to flow through the surface of the electrical component to cool the electrical component, so that the electrical component operates at a low temperature;

[0015] In this way, the influence of the external temperature on the internal temperature of the chassis is reduced, and the electrical components installed therein can still be effectively cooled down under high ambient temperatures, thereby improving the service life, safety and practicality of the servo drive.

[0016] Also includes:

[0017] The cold air flow rate enhancement mechanism is used to increase the cold air flow rate flowing through the inner cavity of the chassis.

[0018] Features:

[0019] The cold air flow rate enhancement mechanism is used to increase the flow rate of cold air flowing through specific electrical components.

[0020] Also includes:

[0021] A heat sink having cooling holes and used for dividing the inner cavity of the chassis into a front chamber and a rear chamber;

[0022] an air inlet, which passes through the chassis and communicates with the rear chamber;

[0023] an air outlet chamber disposed in the front chamber;

[0024] An air outlet, which passes through the chassis and communicates with the rear chamber;

[0025] A first exhaust device, which is used to exhaust the gas in the inner cavity of the chassis into the gas outlet chamber;

[0026] The cold air generating mechanism is close to the air inlet, each electrical component is installed on the heat dissipation plate, there are a plurality of cold air holes which surround each electrical component respectively, and the cold air generating mechanism is close to the air inlet.

[0027] The cold air generating mechanism includes:

[0028] an evaporator, which is installed in the inner cavity of the chassis;

[0029] compressor;

[0030] Condenser;

[0031] Expansion valve;

[0032] Among them, the compressor, evaporator and condenser are connected end to end through pipelines in sequence, and the expansion valve is installed on the pipeline between the condenser and the evaporator.

[0033] The cold air velocity enhancement mechanism includes:

[0034] an elevator chamber disposed in the front chamber;

[0035] A lifting slot connecting the front chamber and the lifting chamber;

[0036] A crossbeam having an inner cavity and movable between the front chamber, the lifting slot and the lifting chamber;

[0037] A lifting mechanism, which is used to drive the crossbeam to rise and fall;

[0038] A covering cover, which is movably mounted on the crossbeam and is used to cover one of the electrical components and the cold air hole adjacent thereto;

[0039] The air outlet mechanism is used to discharge the air in the covering hood into the air outlet chamber.

[0040] Cover includes:

[0041] A transverse sliding groove is arranged on a side of the cross beam facing the heat dissipation plate;

[0042] an inner cover mounted in the inner cavity of the crossbeam;

[0043] An outer cover, which is movably mounted in the transverse slide and the inner cover;

[0044] A transverse driving mechanism, which is used to move the inner cover in the transverse direction in the inner cavity of the crossbeam;

[0045] A sliding cover, which is movably mounted in the outer cover;

[0046] The push mechanism is used to drive the sliding cover to move toward or away from the heat sink.

[0047] The traverse drive mechanism includes:

[0048] The driving roller is rotatably mounted in the inner cavity of the cross beam and driven by a motor;

[0049] The driven roller is rotatably mounted in the inner cavity of the cross beam and is connected to the driving roller through a transmission belt;

[0050] A sealing ring, which is arranged on the inner side wall of the cross beam and surrounds the transverse sliding groove;

[0051] The inner cover is mounted on the transmission belt through fasteners, and the transmission belt abuts against the sealing ring toward the outer wall of the transverse sliding groove.

[0052] Also includes:

[0053] There are several temperature sensors which are installed on each electrical component respectively;

[0054] An audible and visual alarm, which is installed on the top of the chassis;

[0055] The PLC controller is used to control the sound and light alarm, compressor, transverse drive mechanism, push mechanism, air extraction device, air outlet mechanism and lifting mechanism to cool down the electrical component individually when any temperature sensor detects abnormal temperature of the corresponding electrical component.

[0056] Also disclosed is a method for cooling a high-power servo drive structure, comprising the following steps:

[0057] S1, temperature monitoring: monitor the temperature of each electrical component through each temperature sensor, and feed back to the PLC controller through electrical signals. When the temperature of any electrical component rises to a preset value, enter step S2;

[0058] S2, overall preliminary cooling: the PLC controller sends an electrical signal to start the air outlet mechanism, and the airflow outside the chassis enters the rear chamber through the air inlet, and when flowing through the rear chamber, it is blown to the surface of each electrical component through each cold air hole after the heat sink faces the side wall of the rear chamber. The airflow entering the front chamber carries the heat dissipated by each electrical component through the exhaust device and is discharged into the inner cavity of the air outlet chamber, and is discharged to the outside of the chassis through the air outlet, and then enters step S3;

[0059] S3, continuous temperature monitoring: each temperature sensor continuously monitors the temperature of each electrical component. When it is detected that the temperature of the electrical component is still rising, the process proceeds to step S4; when it is detected that the highest temperature of each electrical component is also lower than the preset value, the process proceeds to step S5; when it is detected that any electrical component is heating up too fast, the process proceeds to step S6;

[0060] S4, overall strong cooling: the PLC controller sends an electrical signal to start the compressor, the compressor absorbs the low-temperature and low-pressure gaseous refrigerant from the evaporator, compresses it, and discharges the high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the condenser through the pipeline in turn to exchange heat with the air, forming a high-pressure liquid refrigerant that is decompressed by the expansion valve and enters the evaporator. The low-pressure liquid refrigerant evaporates in the evaporator and absorbs heat to cool the air, and cools the airflow entering the rear chamber to form a cold airflow, and returns to step S3;

[0061] S5, stop cooling, the PLC controller sends an electrical signal to shut down the air outlet mechanism, compressor and air outlet mechanism that are still in operation, and return to step S1;

[0062] S6. Local emergency cooling: run step S4, send an electrical signal to start the lifting mechanism, transverse drive mechanism, pushing mechanism, air outlet mechanism and sound and light alarm, the sound and light alarm emits sound and light, the lifting mechanism drives the crossbeam to rise and fall in the vertical direction to the same level as the electrical component with abnormal temperature, the transverse drive mechanism drives the covering cover to move to align with the electrical component with abnormal temperature, the pushing mechanism pushes the sliding cover to slide in the outer cover toward the heat sink, the end face of the sliding cover extending out of the outer cover abuts against the surface of the heat sink, the operation of the air outlet mechanism causes the airflow in the inner cavity of the sliding cover to be discharged into the inner cavity of the air outlet chamber through the air outlet mechanism.

[0063] The beneficial effects of the present invention will be described in detail in the examples to make the beneficial effects more obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 This is a schematic diagram of a specific implementation scheme of a high-power servo driver structure according to an embodiment of the present application;

[0065] Figure 2 for Figure 1 Schematic diagram of the cross-section structure in the AA direction;

[0066] Figure 3 for Figure 2 Schematic diagram of the cross-section structure in the middle BB direction;

[0067] Figure 4 This is a schematic diagram of the lifting mechanism structure in the high-power servo drive structure of an embodiment of the present application.

[0068] Reference numerals

[0069] 1-chassis, 2-electrical components, 3-cold air generating mechanism, 301-evaporator, 302-compressor, 303-condenser, 304-expansion valve, 4-cold air velocity enhancing mechanism, 401-lifting chamber, 402-lifting slot, 403-crossbeam, 5-lifting mechanism, 501-longitudinal beam, 502-vertical slot 1, 503-rotating shaft, 504-rack, 505-gear, 506-transmission frame, 507-transmission slot 1, 508-straight driving device, 509-lifting block, 510-transmission block 1, 511-vertical slot 2, 6-cover, 601-transverse sliding slot, 602-inner cover, 603-outer cover, 604-sliding cover, 7-air outlet mechanism, 701-ventilation vertical slot, 702-ventilation horizontal slot, 703-connecting pipe, 704-exhaust pipe, 705-exhaust device 2, 8-transverse driving mechanism, 801-active roller, 802-motor 1, 803-driven roller, 803-sealing ring, 804-transmission belt, 805-sealing ring, 9-pushing mechanism, 901-turntable, 902-motor 2, 903-swing arm, 904-transmission slot 2, 905-transmission block 2, 906-transmission slot 3, 907-transmission block 3, 10-heat sink, 11-cold air hole, 12-front chamber, 13-rear chamber, 14-air inlet, 15-air outlet chamber, 16-air outlet, 17-exhaust device 1, 18-PLC controller, 19-temperature sensor, 20-sound and light alarm, 21-sealing convex edge, 22-heat sink fin, 23-slot, 24-through slot, 25-mounting plate, 26-filter plate. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0071] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0072] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0073] Embodiment 1:

[0074] like Figures 1 to 4 As shown, an embodiment of the present application provides a high-power servo drive structure, including a chassis 1 with an inner cavity; multiple electrical components 2 installed in the inner cavity of the chassis 1 for controlling the operation of an external servo motor; and a cold air generating mechanism 3 for generating a cold air flow to dissipate heat from the electrical components 2 located in the inner cavity of the chassis 1.

[0075] In the embodiment of the present application, the above-mentioned high-power servo drive structure is adopted, and the heat generated by each electrical component 2 during operation is transferred to the inner cavity of the chassis 1, and a continuous flow of cold air is generated by the cold air generating mechanism 3 to flow through the surface of the electrical component 2 to cool the electrical component 2, so that the electrical component 2 operates at a low temperature;

[0076] In this way, the influence of the external temperature on the internal temperature of the chassis 1 is reduced, and the electrical components 2 installed therein can still be effectively cooled down under high ambient temperature conditions, thereby improving the service life, safety and practicality of the servo drive.

[0077] Embodiment 2:

[0078] In addition to the structural features of the above-mentioned embodiments, this embodiment also includes:

[0079] The cold air flow rate enhancement mechanism 4 is used to increase the cold air flow rate flowing through the inner cavity of the chassis 1 .

[0080] In this embodiment, due to the adoption of the above structure, the flow rate of the cold air generated by the cold air generating mechanism 3 when flowing through the inner cavity of the chassis 1 is increased by setting the cold air flow rate enhancing mechanism 4;

[0081] In this way, the heat dissipation effect of the cold air on the electrical components 2 is improved, thereby increasing the service life, safety and practicality of the servo drive.

[0082] Embodiment 3:

[0083] In this embodiment, in addition to the structural features of the aforementioned embodiments, the cold air flow rate enhancement mechanism 4 is used to increase the flow rate of the cold air flowing through the specific electrical component 2 .

[0084] In this embodiment, due to the adoption of the above structure, the above-mentioned specific electrical component 2 is a certain electrical component 2 with abnormal temperature. By setting the cold air enhancement mechanism, when the temperature of a certain electrical component 2 is abnormal, the cold air flow rate flowing through the electrical component 2 with abnormal temperature is increased;

[0085] In this way, an electrical component 2 with abnormal temperature can be cooled down individually to suppress its temperature, so that the staff can have enough time to come to the site to deal with it, thereby improving the service life, safety and practicality of the servo drive.

[0086] Embodiment 4:

[0087] In addition to the structural features of the aforementioned embodiments, the present embodiment further includes a heat sink 10 having cold air holes 11 and used to divide the inner cavity of the chassis 1 into a front chamber 12 and a rear chamber 13; an air inlet 14, which passes through the chassis 1 and is connected to the rear chamber 13; an air outlet chamber 15, which is arranged in the front chamber 12; an air outlet 16, which passes through the chassis 1 and is connected to the rear chamber 13; an exhaust device 17, which is used to discharge the gas in the inner cavity of the chassis 1 into the air outlet chamber 15, wherein the cold air generating mechanism 3 is close to the air inlet 14, each electrical component 2 is installed on the heat sink 10, there are a plurality of cold air holes 11 and they surround each electrical component 2 respectively, and the cold air generating mechanism 3 is close to the air inlet 14.

[0088] In this embodiment, due to the adoption of the above structure, the heat generated by each electrical component 2 during operation is transferred to the heat sink 10, and the heat is dissipated from the heat sink 10 to the front chamber 12 and the rear chamber 13. The exhaust device 17 is continuously operated to discharge the air flow in the front chamber 12 into the air outlet chamber 15, and then discharged to the outside of the chassis 1 through the air outlet 16. The air outside the chassis 1 continuously enters the rear chamber 13 through the air inlet 14, and forms cold wind when flowing through the cold wind generating mechanism 3. The cold wind in the rear chamber 13 enters the front chamber 12 through the cold wind hole 11, so that the temperature in the heat sink 10 and the electrical component 2 decreases.

[0089] In this way, the influence of the external temperature on the internal temperature of the chassis 1 is reduced, and the electrical components 2 installed therein can still be effectively cooled down under high ambient temperature conditions, thereby improving the service life, safety and practicality of the servo drive.

[0090] Embodiment 5:

[0091] In this embodiment, in addition to the structural features of the aforementioned embodiments, the cold air generating mechanism 3 includes an evaporator 301, which is installed in the inner cavity of the chassis 1; a compressor 302; a condenser 303; and an expansion valve 304. The compressor 302, the evaporator 301, and the condenser 303 are connected end to end in sequence through pipes, and the expansion valve 304 is installed on the pipe between the condenser 303 and the evaporator 301.

[0092] In this embodiment, due to the adoption of the above-mentioned structure, when it is necessary to cool the airflow passing through the rear chamber 13, the compressor 302 starts to operate, and the compressor 302 absorbs the low-temperature and low-pressure gaseous refrigerant from the evaporator 301, compresses it, and discharges the high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the condenser 303 through the pipeline in turn to exchange heat with the air, forming a high-pressure liquid refrigerant that is decompressed through the expansion valve 304 and enters the evaporator 301. The low-pressure liquid refrigerant evaporates in the evaporator 301 and absorbs heat to cool the air. The airflow entering the rear chamber 13 is cooled to form a cold airflow. The exhaust device 17 is operated, and the airflow in the front chamber 12 is discharged to the air outlet chamber 15 through the exhaust device 17. After passing through the surface of the condenser 303, the heat emitted from the condenser 303 is carried away and discharged to the outside of the chassis 1 through the air outlet 16. The air outside the chassis 1 enters the rear chamber 13 through the air inlet 14. When passing through the evaporator 301, the heat in the airflow is absorbed by the evaporator 301 to form a cold airflow. The cold airflow enters the front chamber 12 through the cold air hole 11.

[0093] In this way, the influence of the external temperature on the internal temperature of the chassis 1 is reduced, and the electrical components 2 installed in the inner cavity of the chassis 1 can be well cooled at any time, avoiding the phenomenon that the electrical components 2 cannot be well cooled and burned due to excessively high ambient temperature, thereby increasing the service life of the electrical components 2.

[0094] Embodiment 6:

[0095] In this embodiment, in addition to the structural features of the aforementioned embodiments, the cold air flow rate enhancement mechanism 4 includes a lifting chamber 401, which is arranged in the front chamber 12; a lifting slot 402, which connects the front chamber 12 and the lifting chamber 401; a beam 403, which has an inner cavity and moves between the front chamber 12, the lifting slot 402 and the lifting chamber 401; a lifting mechanism 5, which is used to drive the beam 403 to rise and fall; a covering cover 6, which is movably installed on the beam 403 to cover one of the electrical components 2 and the cold air holes 11 adjacent thereto; and an air outlet mechanism 7, which is used to discharge the air in the covering cover 6 into the air outlet chamber 15.

[0096] In this embodiment, due to the adoption of the above-mentioned structure, when the temperature of a certain electrical component 2 is too high or the heating speed is abnormal, the lifting mechanism 5 drives the crossbeam 403 to rise and fall in the lifting chamber 401, and adjusts the horizontal height between the crossbeam 403 and the electrical component 2, so that the cover 6 moves to the same horizontal height as the electrical component 2, and the cover 6 slides in the crossbeam 403 in the horizontal direction to align with the electrical component 2 and cover the electrical component 2, and a closed space is formed between the cover 6 and the side wall of the heat sink 10 facing the front chamber 12, and the air outlet mechanism 7 operates to discharge the air between the cover 6 and the heat sink 10 into the inner cavity of the air outlet chamber 15, and the cold air in the heat sink cavity quickly enters between the cover 6 and the heat sink 10 through the cold air holes 11, so as to cool down the electrical component 2;

[0097] In this way, the cold air flow rate of the cold air hole 11 adjacent to the electrical component 2 with abnormal temperature is increased, and the temperature of the electrical component 2 is quickly suppressed by the large flow of cold air, delaying its damage rate so that the staff can have enough time to rush to the scene, and isolating it from other electrical components 2. Even if it is still damaged, it will not cause joint damage to other electrical components 2, thereby improving the safety of the equipment.

[0098] Embodiment 7:

[0099] In this embodiment, in addition to the structural features of the aforementioned embodiments, the covering cover 6 includes a transverse slide groove 601, which is arranged on the side of the beam 403 facing the heat sink 10; an inner cover 602, which is installed in the inner cavity of the beam 403; an outer cover 603, which is movably installed in the transverse slide groove 601 and the inner cover 602; a transverse driving mechanism 8, which is used to move the inner cover 602 laterally in the inner cavity of the beam 403; a sliding cover 604, which is movably installed in the outer cover 603; and a pushing mechanism 9, which is used to drive the sliding cover 604 to move toward or away from the heat sink 10.

[0100] In this embodiment, due to the adoption of the above-mentioned structure, when the transverse driving mechanism 8 drives the inner cover 602 to move transversely in the inner cavity of the crossbeam 403 until it is aligned with the electrical component 2, the pushing mechanism 9 operates to drive the sliding cover 604 to slide in the outer cover 603 in the direction close to the electrical component 2, until the end surface of the sliding cover 604 extending out of the outer cover 603 abuts against the surface of the heat sink 10, so that the electrical component 2 is isolated and kept away from other electrical components 2, so that a space independent of the front chamber 12 is formed between the outer cover 603, the inner cover 602, the sliding cover 604 and the heat sink 10, and then the air outlet mechanism 7 is cooperated to make the cold air flow rate in the space greater than the cold air flow rate in the front chamber 12, so that the abnormal heating of the electrical component 2 located in the space is suppressed and even if it burns or explodes, it will not affect other normal electrical components 2;

[0101] In this way, the safety of the equipment is improved.

[0102] Embodiment 8:

[0103] In this embodiment, in addition to the structural features of the aforementioned embodiments, the transverse driving mechanism 8 includes an active roller 801, which is rotatably installed in the inner cavity of the crossbeam 403 and driven by a motor 802; a driven roller 803, which is rotatably installed in the inner cavity of the crossbeam 403 and is connected to the active roller 801 through a transmission belt 804; a sealing ring 805, which is arranged on the inner wall of the crossbeam 403 and surrounds the transverse slide groove 601, and the inner cover 602 is installed on the transmission belt 804 through fasteners, and the transmission belt 804 is in contact with the sealing ring 805 toward the outer wall of the transverse slide groove 601.

[0104] In this embodiment, due to the adoption of the above-mentioned structure, when the position of the inner cover 602 needs to be moved, the motor 802 is started to drive the active roller 801 to rotate, and the transmission belt 804 moves between the active roller 801 and the driven roller 803, driving the cover 6 installed on the transmission belt to slide in the transverse direction in the transverse slide groove 601, and adjusting the position of the cover 6. When the cover 6 moves to the specified position, the motor 802 stops running. During the movement of the transmission belt 804, the end surface of the sealing ring 805 away from the transverse slide groove 601 and the surface of the transmission belt 804 facing the electrical component 2 are kept in contact and sealed at all times;

[0105] In this way, when the cover 6 slides in the transverse slide groove 601, a sealed and uniform gap is maintained between the transverse slide groove 601 and the inner cavity of the beam 403, so that the cover 6 can be accurately aligned with the electrical component 2, thereby improving the practicality and accuracy of the equipment.

[0106] Embodiment 9:

[0107] In this embodiment, in addition to the structural features of the aforementioned embodiments, the lifting mechanism 5 includes a longitudinal beam 501, which is vertically slidably installed in the lifting chamber 401 and the top end of which is fixedly connected to the cross beam 403; a vertical groove 502, which is vertically arranged on a side wall of the longitudinal beam 501; a rotating shaft 503, which is rotatably installed in the inner cavity of the lifting chamber 401 through the rotating shaft 503 frame; a rack 504, which is installed at the bottom of the vertical groove 502; a gear 505, which is fixedly installed on the rotating shaft 503 and is transmission-connected to the rack 504; a transmission frame 506, one end of which is fixedly installed on the outer wall of the rotating shaft 503; a transmission groove 507, which is arranged at one end of the transmission frame 506 away from the rotating shaft 503; a straight-moving drive device 508, which is installed in the lifting chamber 401 and a lifting block 509 is installed at its output end; a transmission block 510, one end of which is fixedly installed on the outer wall of the lifting block 509, and the other end is slidingly matched with the transmission groove 507.

[0108] In this embodiment, due to the adoption of the above structure, when the cross beam 403 needs to be lifted or lowered in the lifting chamber 401, the straight driving device 508 is started to drive the lifting block 509 to be lifted or lowered in the lifting chamber 401, and the transmission block 1 510 slides in the transmission slot 1 507, and the transmission frame 506 drives the rotating shaft 503 to rotate by cooperating with the transmission slot 1 507, and the large-diameter gear 505 and the rack 504 cooperate with each other. The straight driving device 508 only needs to drive the lifting block 509 to be lifted or lowered within a relatively small stroke, so that the longitudinal beam 501 can be lifted or lowered quickly in the lifting chamber 401. The straight driving device 508 can use a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, a straight motor or a device with the same function;

[0109] In this way, the lifting speed of the beam 403 is increased when the temperature of the electrical component 2 is abnormal, so that it can quickly move to the specified horizontal height, and the covering cover 6 can quickly approach and cover the electrical component 2, so that the abnormally high temperature of the electrical component 2 can be quickly suppressed, thereby improving the heat dissipation efficiency and safety.

[0110] Embodiment 10: In this embodiment, in addition to the structural features of the aforementioned embodiments, the lifting mechanism 5 also includes a pair of vertical grooves 511 , which are vertically symmetrically arranged on the front and rear inner walls of the lifting chamber 401 , and the front and rear ends of the longitudinal beam 501 are respectively vertically slidably connected to each of the vertical grooves 511 .

[0111] In the present embodiment, due to the adoption of the above-mentioned structure, the two ends of the longitudinal beam 501 are limited by the setting of a pair of vertical grooves 511, so that the longitudinal beam 501 can only be raised and lowered in a direction perpendicular to the vertical grooves 511. In this way, the stability of the longitudinal beam 501 during lifting and lowering is improved, so that the covering cover 6 can be aligned with the electrical component 2, thereby avoiding the phenomenon that the electrical component 2 cannot be accurately covered due to the offset of the position of the covering cover 6, thereby reducing the heat dissipation efficiency, thereby improving the practicability of the equipment.

[0112] Embodiment 11:

[0113] In this embodiment, in addition to the structural features of the aforementioned embodiments, the pushing mechanism 9 includes a turntable 901, which is driven to rotate by a second motor 902 and is installed in the inner cover 602; a swing arm 903, one end of which is hinged to the inner side wall of the inner cover 602 facing the heat dissipation plate 10; a second transmission groove 904, which is laterally arranged on the inner end side wall of the sliding cover 604; a second transmission block 905, which is fixedly installed on the end of the swing arm 903 away from the hinge point and is slidably matched with the second transmission groove 904; a third transmission groove 906, which is arranged in the middle of the swing arm 903; and a third transmission block 907, which is fixedly installed at the eccentric part of the surface of the turntable 901 and is slidably matched with the third transmission groove 906.

[0114] In this embodiment, due to the adoption of the above structure, the motor 2 902 drives the turntable 901 to rotate, the transmission block 3 907 rotates with the turntable 901 and slides back and forth in the transmission slot 3 906, driving the swing arm 903 to swing back and forth around the hinge point between the swing arm 903 and the inner wall of the inner cover 602, and the transmission block 2 905 installed at the end of the swing arm 903 away from the hinge point between the swing arm 903 and the inner wall of the inner cover 602 swings back and forth in the transmission slot 2 904. The hinge point of the inner wall is swung at the center of the circle. With the swing of the swing arm 903, the transmission block 905 and the transmission slot 904 cooperate to drive the movable end of the swing arm 903 to swing to both sides of the transmission slot 904, and drive the sliding cover 604 to move in the outer cover 603 toward the inner cover 602. When the movable end of the swing arm 903 swings to the middle of the transmission slot 904, the sliding cover 604 is driven to move toward the electrical component 2, so that the end surface of the sliding cover 604 away from the inner cover 602 abuts against the surface of the heat sink 10.

[0115] In this way, the sliding cover 604 can be reciprocated in the outer cover 603 by simply controlling the opening or closing of the motor 2 902, and the structure is simple, the transmission efficiency is high, and the maintenance is convenient, which reduces the control difficulty and production cost of the equipment.

[0116] Embodiment 12:

[0117] In addition to the structural features of the above-mentioned embodiments, this embodiment further includes a sealing protrusion 21 , which is disposed on the side wall of the heat dissipation plate 10 facing the crossbeam 403 and surrounds each cold air hole 11 .

[0118] In this embodiment, due to the above structure, by setting the sealing ridge 21, when the sliding cover 604 moves toward the direction close to the heat sink 10, the end surface of the sliding cover 604 can be combined with the sealing ridge 21 to form a seal;

[0119] In this way, the travel distance of the sliding cover 604 is shortened, the speed of forming a seal between the sliding cover 604 and the heat sink 10 is increased, the electrical component 2 with abnormal temperature can be quickly cooled, and the safety of the equipment is improved.

[0120] Embodiment 13:

[0121] In this embodiment, in addition to the structural features of the aforementioned embodiments, the air outlet mechanism 7 includes a ventilation vertical groove 701, which is arranged in the longitudinal beam 501 and the bottom end thereof passes through; a ventilation transverse groove 702, which is arranged in the inner cavity of the transverse beam 403 and is connected to the top of the ventilation vertical groove 701 at one end and passes through at the other end; a connecting pipe 703, one end of which is connected to the inner cover 602 and the other end is at least partially slidably installed in the ventilation transverse groove 702; an exhaust pipe 704, one end of which is at least partially slidably installed in the ventilation vertical groove 701 and the other end is connected to the inner cavity of the air outlet chamber 15; and an exhaust device 2 705, which is installed on the exhaust pipe 704.

[0122] In this embodiment, due to the adoption of the above-mentioned structure, after a sealed space is formed between the covering cover 6 and the heat sink 10, the second exhaust device 705 is started, so that the air between the inner cover 602, the outer cover 603, the sliding cover 604 and the heat sink 10 passes through the connecting pipe 703, the ventilation horizontal groove 702, the ventilation vertical groove 701 and the exhaust pipe 704 and is discharged into the inner cavity of the air outlet chamber 15, and then the cold air in the chamber 13 continuously flows through the cold air holes 11 through the inner cover 602, the outer cover 603, the sliding cover 604 and the heat sink 10. When the transverse driving mechanism 8 drives the covering cover 6 to move transversely, one end of the connecting pipe 703 slides in the ventilation horizontal groove 702, and when the lifting mechanism 5 drives the longitudinal beam 501 to rise and fall, the top end of the exhaust pipe 704 slides in the ventilation vertical groove 701, and the connecting pipe 703 and the ventilation horizontal groove 702 and the exhaust pipe 704 and the ventilation vertical groove 701 can be kept sealed at any time;

[0123] In this way, when the covering hood 6 moves to a position covering any electrical component 2 in the front chamber 12, the hot air flow that enters therein to cool down the electrical component 2 can be discharged into the inner cavity of the air outlet chamber 15, so that the movement of the covering hood 6 is not restricted, thereby improving the freedom of the covering hood 6 and the safety of the equipment.

[0124] Embodiment 14:

[0125] In this embodiment, in addition to the structural features of the aforementioned embodiments, the air outlet mechanism 7 also includes a slide groove 706, which is arranged at the bottom of the inner cavity of the beam 403 and extends along the length direction of the beam 403. The bottom of the connecting pipe 703 is installed in the slide groove 706 along the transverse sliding direction.

[0126] In this embodiment, due to the adoption of the above-mentioned structure, the sliding cooperation of the slide groove 706 and the connecting pipe 703 is improved to improve the sliding stability of the inner cover 602 in the inner cavity of the beam 403, and prevent the inner cover 602 from shifting due to other factors, resulting in a gap between the end face of the sliding cover 604 and the surface of the heat sink 10, causing the flow of the cold air flow through the cold air hole 11 to decrease. In this way, the stability of the equipment is improved.

[0127] Embodiment 15:

[0128] In this embodiment, in addition to the structural features of the aforementioned embodiments, each cold air hole 11 is arranged obliquely and its air outlet end faces the outer wall of the electrical component 2 .

[0129] In this embodiment, due to the above structure, the cold air hole 11 is tilted toward the outer wall of the electrical component 2, so that the cold air can directly blow toward the electrical component 2 when entering the front chamber 12 through the cold air hole 11, so that the cold air can fully contact the surface of the electrical component 2;

[0130] In this way, the heat dissipation effect of the electrical component 2 is improved.

[0131] Embodiment 16:

[0132] In addition to the structural features of the above-mentioned embodiments, this embodiment further includes heat dissipation fins 22 , which are mounted on the back of the heat dissipation plate 10 and extend into the rear chamber 13 .

[0133] In this embodiment, due to the adoption of the above structure, the contact area between the back side of the heat sink 10 and the cold air flow in the rear chamber 13 is increased by the provision of the heat dissipation fins 22;

[0134] In this way, the heat dissipation effect of the electrical component 2 is improved.

[0135] Embodiment 17:

[0136] In addition to the structural features of the aforementioned embodiments, this embodiment also includes a slot 23, which is arranged on the rear side wall of the chassis 1; a through slot 24, which is arranged on the rear side wall of the chassis 1 to connect the slot 23 and the rear chamber 13; a mounting plate 25, which is installed in the slot 23; a filter plate 26, one end of which is fixedly connected to the mounting plate 25, and the other end passes through the through slot 24 and extends into the rear chamber 13, and the filter plate 26 is located between the evaporator 301 and the air inlet 14.

[0137] In this embodiment, due to the adoption of the above-mentioned structure, the dust impurities entrained in the air flow entering the rear chamber 13 through the air inlet 14 are filtered through the setting of the filter plate 26, so as to avoid the phenomenon that the heat dissipation effect of the heat dissipation plate 10 and the electrical component 2 is reduced due to the attachment of dust impurities to the surface of the heat sink 10 or the electrical component 2. When too much dust is attached to the surface of the filter plate 26, resulting in a reduction in its dust filtering effect, the mounting plate 25 is pulled out in a direction away from the chassis 1, the mounting plate 25 leaves the slot 23, and the filter plate 26 leaves the chassis 1 through the through slot 24. After the staff cleans the filter plate 26, it is inserted into the through slot 24, and the mounting plate 25 is pushed to make the filter plate 26 extend into the rear chamber 13 until the mounting plate 25 is inserted into the slot 23. Multiple filter plates 26 and through slots 24 can be provided to improve the dust filtering effect.

[0138] In this way, the heat dissipation effect of the equipment is improved.

[0139] Embodiment 18:

[0140] In this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes a PLC controller 18, which is installed at the bottom of the lifting chamber 401; a plurality of temperature sensors 19, which are respectively installed on each electrical component 2; an audible and visual alarm 20, which is installed on the top of the chassis 1. The temperature sensor 19, the audible and visual alarm 20, the compressor 302, the transverse drive mechanism 8, the pushing mechanism 9, the exhaust device 17, the exhaust mechanism 7 and the lifting mechanism 5 are all electrically connected to the PLC controller 18.

[0141] In this embodiment, due to the adoption of the above-mentioned structure, the temperature of each electrical component 2 is monitored in real time through the setting of multiple temperature sensors 19, and is fed back to the PLC controller 18 through an electrical signal. When the temperature of an electrical component 2 is higher than a preset value, the PLC controller 18 sends an electrical signal to start the exhaust device 17, so that the airflow outside the chassis 1 enters the rear chamber 13 through the air inlet 14, blows toward the electrical component 2 from the cold air hole 11, and cools the electrical component 2. The airflow that absorbs the heat dissipated from the electrical component 2 is discharged to the air outlet chamber 15 through the exhaust device 17 and then discharged to the outside of the chassis 1 through the air outlet 16. If the temperature sensor 19 senses that the temperature of the electrical component 2 is still rising, the PLC controller 18 sends an electrical signal to start the compressor 302. The compressor 302 absorbs the low-temperature and low-pressure gaseous refrigerant from the evaporator 301, compresses it, and discharges the high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is discharged through the air inlet 14 and the air outlet 11. The pipelines enter the condenser 303 in turn to exchange heat with the air, forming a high-pressure liquid refrigerant that is decompressed through the expansion valve 304 and enters the evaporator 301. The low-pressure liquid refrigerant evaporates in the evaporator 301 and absorbs heat to cool the air, and cools the airflow entering the rear chamber 13 to form a cold airflow, further improving the cooling effect. When the temperature sensor 19 senses that the temperature of the electrical component 2 with the highest temperature is also lower than the preset value, the PLC controller 18 sends an electrical signal to shut down the exhaust device 17 in the start-up state. If the temperature of any electrical component 2 is abnormal, the PLC controller 18 sends an electrical signal to start the lifting mechanism 5, the transverse drive mechanism 8, the push mechanism 9 and the exhaust mechanism 7 in turn, so that the flow rate of cold air flowing through the electrical component 2 is increased, and its temperature is suppressed by a large flow of cold air. At the same time, the sound and light alarm 20 is started to warn the staff that the electrical component 2 is abnormal and guide the staff to find the location quickly.

[0142] In this way, when the temperature of the electrical component 2 rises, it automatically runs to cool the electrical component 2. When the temperature of the electrical component 2 drops to a safe range, it automatically shuts down and can warn and guide the staff to promptly repair the electrical component 2 with abnormal temperature. Compared with the prior art, the energy-saving effect and safety of the equipment are improved.

[0143] Embodiment 19:

[0144] In this embodiment, a method for cooling a high-power servo drive structure is also disclosed, comprising the following steps:

[0145] S1, temperature monitoring: monitor the temperature of each electrical component 2 through each temperature sensor 19, and feed back to the PLC controller 18 through an electrical signal. When the temperature of any electrical component 2 rises to a preset value, enter step S2;

[0146] S2, overall preliminary cooling: the PLC controller 18 sends an electrical signal to start the air outlet mechanism 7, and the airflow outside the chassis 1 enters the rear chamber 13 through the air inlet 14, and when flowing through the rear chamber 13, it and the heat sink 10 face the side wall of the rear chamber 13, and then blows to the surface of each electrical component 2 through each cold air hole 11, and the airflow entering the front chamber 12 carries the heat dissipated by each electrical component 2 through the exhaust device 17 to the air outlet chamber 15, and then is discharged to the outside of the chassis 1 through the air outlet 16, and then enters step S3;

[0147] S3, continuous temperature monitoring: each temperature sensor 19 continuously monitors the temperature of each electrical component 2. When it is detected that the temperature of the electrical component 2 is still rising, the process proceeds to step S4; when it is detected that the highest temperature of each electrical component 2 is also lower than the preset value, the process proceeds to step S5; when it is detected that any electrical component 2 is heating up too fast, the process proceeds to step S6;

[0148] S4, overall strong cooling: PLC controller 18 sends an electrical signal to start compressor 302, compressor 302 absorbs low-temperature and low-pressure gaseous refrigerant from evaporator 301, compresses it, and discharges high-temperature and high-pressure gaseous refrigerant, which enters condenser 303 through pipelines in turn to exchange heat with air, forming high-pressure liquid refrigerant, which enters evaporator 301 through expansion valve 304 with reduced pressure, and low-pressure liquid refrigerant evaporates in evaporator 301 and absorbs heat to cool the air, and cools the airflow entering rear chamber 13 to form cold airflow, and returns to step S3;

[0149] S5, stop cooling, the PLC controller 18 sends an electrical signal to shut down the air outlet mechanism 7, the compressor 302 and the air outlet mechanism 7 that are still in operation;

[0150] S6, local emergency cooling: run step S4, send an electrical signal to start the lifting mechanism 5, the transverse drive mechanism 8, the pushing mechanism 9, the air outlet mechanism 7 and the sound and light alarm 20, the sound and light alarm 20 emits a sound and a bright light, the lifting mechanism 5 drives the crossbeam 403 to rise and fall in the vertical direction to the same level as the electrical component 2 with abnormal temperature, the transverse drive mechanism 8 drives the covering cover 6 to move to align with the electrical component 2 with abnormal temperature, the pushing mechanism 9 pushes the sliding cover 604 to slide in the outer cover 603 toward the heat sink 10, the end face of the sliding cover 604 extending out of the outer cover 603 abuts against the surface of the heat sink 10, the operation of the air outlet mechanism 7 causes the airflow in the inner cavity of the sliding cover 604 to be discharged into the inner cavity of the air outlet chamber 15 through the air outlet mechanism 7.

[0151] In this embodiment, due to the adoption of the above-mentioned structure, through the cooperation of multiple temperature sensors 19 and the PLC controller 18, the overall preliminary cooling, overall strong cooling, local emergency cooling or stopping of cooling are automatically selected according to the real-time temperature of each electrical component 2 in the chassis 1, thereby realizing intelligent automatic control, reducing the labor intensity of workers, improving the cooling effect, reducing energy consumption, and improving equipment safety.

[0152] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0153] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A high-power servo drive structure, characterized in that: include: A chassis (1) having an inner cavity; Electrical components (2), which are in plurality and are installed in the inner cavity of the chassis (1) and are used to control the operation of an external servo motor; A cold air generating mechanism (3) for generating a cold air flow to dissipate heat from the electrical components (2) located in the inner cavity of the chassis (1); A heat sink (10) having a cooling air hole (11) and used to separate the inner cavity of the chassis (1) into a front cavity (12) and a rear cavity (13); A cold air flow rate enhancement mechanism (4) for increasing the cold air flow rate flowing through the inner cavity of the chassis (1); The cold air velocity enhancement mechanism (4) comprises: A lifting chamber (401) disposed in the front chamber (12); A lifting groove (402) connecting the front chamber (12) and the lifting chamber (401); A crossbeam (403) having an inner cavity and movable between the front chamber (12), the lifting slot (402) and the lifting chamber (401); A lifting mechanism (5) for driving the crossbeam (403) to move up and down; A covering cover (6) movably mounted on the crossbeam (403) and used to cover one of the electrical components (2) and the cold air hole (11) adjacent thereto; An air outlet mechanism (7) for discharging air in the covering hood (6) into an air outlet chamber (15); The covering cover (6) comprises: A transverse sliding groove (601) arranged on a side of the crossbeam (403) facing the heat dissipation plate (10); An inner cover (602) installed in the inner cavity of the crossbeam (403); An outer cover (603) movably mounted in the transverse sliding groove (601) and the inner cover (602); A transverse driving mechanism (8) for causing the inner cover (602) to move transversely in the inner cavity of the crossbeam (403); A sliding cover (604) movably mounted in the outer cover (603); A pushing mechanism (9) used for driving the sliding cover (604) to move towards or away from the heat sink (10); The transverse drive mechanism (8) comprises: An active roller (801) is rotatably mounted in the inner cavity of the crossbeam (403) and driven by a motor 1 (802); A driven roller (803) which is rotatably mounted in the inner cavity of the crossbeam (403) and is transmission-connected to the driving roller (801) via a transmission belt (804); A sealing ring (805) disposed on the inner side wall of the crossbeam (403) and surrounding the transverse sliding groove (601); The inner cover (602) is mounted on the transmission belt (804) via fasteners, and the transmission belt (804) abuts against the sealing ring (805) toward the outer wall of the transverse sliding groove (601).

2. A high-power servo drive structure according to claim 1, characterized in that: Also includes: An air inlet (14) which passes through the chassis (1) and is in communication with the rear chamber (13); An air outlet chamber (15) disposed in the front chamber (12); An air outlet (16) which passes through the chassis (1) and is in communication with the rear chamber (13); A first exhaust device (17), used for exhausting the gas in the inner cavity of the chassis (1) into the gas outlet chamber (15); The cold air generating mechanism (3) is close to the air inlet (14), each of the electrical components (2) is mounted on the heat dissipation plate (10), and there are a plurality of cold air holes (11) which respectively surround each of the electrical components (2).

3. A high-power servo driver structure according to claim 2, characterized in that: The cold air generating mechanism (3) comprises: An evaporator (301) installed in the inner cavity of the chassis (1); Compressor (302); Condenser (303); Expansion valve (304); The compressor (302), the evaporator (301), and the condenser (303) are connected end to end in sequence via pipelines, and the expansion valve (304) is installed on the pipeline between the condenser (303) and the evaporator (301).

4. A high-power servo driver structure according to claim 3, characterized in that: Also includes: A plurality of temperature sensors (19) are installed on each electrical component (2); An audible and visual alarm (20) mounted on the top of the chassis (1); A PLC controller (18) is used to control the sound and light alarm (20), the compressor (302), the transverse drive mechanism (8), the push mechanism (9), the air extraction device (17), the air outlet mechanism (7) and the lifting mechanism (5) to operate and individually cool the electrical component (2) when any temperature sensor (19) detects that the temperature of the corresponding electrical component (2) is abnormal.

5. A cooling method suitable for the high-power servo drive structure according to claim 4, characterized in that: The following steps are involved: S1, temperature monitoring: the temperature of each electrical component (2) is monitored by each temperature sensor (19), and the temperature is fed back to the PLC controller (18) via an electrical signal. When the temperature of any electrical component (2) rises to a preset value, the process proceeds to step S2; S2, overall preliminary cooling: the PLC controller (18) sends an electrical signal to start the air outlet mechanism (7), and the airflow outside the chassis (1) enters the rear chamber (13) through the air inlet (14). When flowing through the rear chamber (13), the airflow and the heat sink (10) face the side wall of the rear chamber (13) and then blow toward the surface of each electrical component (2) through each cold air hole (11). The airflow entering the front chamber (12) entrains the heat dissipated by each electrical component (2) and is discharged into the inner cavity of the air outlet chamber (15) through the air extraction device (17), and is discharged to the outside of the chassis (1) through the air outlet (16), and then enters step S3; S3, continuous temperature monitoring: each temperature sensor (19) continuously monitors the temperature of each electrical component (2). When it is detected that the temperature of the electrical component (2) is still rising, the process proceeds to step S4; when it is detected that the highest temperature of each electrical component (2) is also lower than the preset value, the process proceeds to step S5; when it is detected that the temperature of any electrical component (2) rises too fast, the process proceeds to step S6; S4, overall strong cooling: the PLC controller (18) sends an electrical signal to start the compressor (302), the compressor (302) absorbs the low-temperature and low-pressure gaseous refrigerant from the evaporator (301), compresses it, and discharges the high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the condenser (303) through the pipeline in turn to exchange heat with the air, forming a high-pressure liquid refrigerant that is decompressed through the expansion valve (304) and enters the evaporator (301). The low-pressure liquid refrigerant evaporates in the evaporator (301) and absorbs heat to cool the air, and cools the airflow entering the rear chamber (13) to form a cold airflow, and then returns to step S3; S5, stopping the cooling, the PLC controller (18) sends an electrical signal to shut down the air outlet mechanism (7), the compressor (302) and the air outlet mechanism (7) that are still in operation, and returns to step S1; S6, local emergency cooling: run step S4, send an electrical signal to start the lifting mechanism (5), the transverse drive mechanism (8), the push mechanism (9), the air outlet mechanism (7) and the sound and light alarm (20), the sound and light alarm (20) emits a sound and a bright light, the lifting mechanism (5) drives the crossbeam (403) to rise and fall in the vertical direction to the same level as the electrical component (2) with abnormal temperature, the transverse drive mechanism (8) drives the covering cover (6) to move to align with the electrical component (2) with abnormal temperature, the push mechanism (9) pushes the sliding cover (604) to slide in the outer cover (603) toward the heat sink (10), the end surface of the sliding cover (604) extending out of the outer cover (603) abuts against the surface of the heat sink (10), and the operation of the air outlet mechanism (7) causes the airflow in the inner cavity of the sliding cover (604) to be discharged into the inner cavity of the air outlet chamber (15) through the air outlet mechanism (7).

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