A frequency conversion assembly quick switching device

Abstract

The utility model provides a kind of quick switching device of frequency conversion assembly, it is related to frequency conversion assembly switching device technical field, including cabinet;Through two sides copper heat collection board, the heat conducted by main, vice frequency conversion assembly and baffle can be quickly captured, the heat conduction pipe fixed by inside fixed clamp of support plate is stably transferred to the aluminum heat sink with surface strip-shaped radiating groove, utilize aluminum material lightweight and large contact area characteristics to accelerate heat dissipation, simultaneously, baffle radiating groove and cabinet front and rear long strip square heat dissipation hole form convection passage, cooperate natural or forced convection to discharge hot air, form the loop of collection, conduction, emission, simultaneously, the high thermal conductivity of copper adapts instantaneous high heat capture, the low cost and easy machinability of aluminum balance heat dissipation efficiency and structure bearing, and whole process does not need active heat dissipation component, both reduce energy consumption and maintenance cost, and can dynamically adapt the heat generation demand of frequency conversion assembly load fluctuation, avoid the performance attenuation or failure caused by local high temperature, guarantee component stable operation.

Description

Technical Field

[0001] This utility model relates to the technical field of frequency converter component switching devices, and in particular to a fast frequency converter component switching device. Background Technology

[0002] Variable frequency drives (VFDs) are key hardware components for regulating the frequency and voltage of electrical energy. Their core components include rectification, filtering, inversion, control, and protection units. They convert fixed-frequency electrical energy into adjustable electrical energy to adapt to motor speed, power output, and other requirements. Widely used in home appliances, industrial equipment, and new energy systems, VFDs require rapid switching. Essentially, this relies on the high-speed switching of power devices such as IGBTs in the inverter unit and the rapid response of the control unit. This is to meet the precise control requirements of dynamic load changes, avoid accuracy degradation, improve energy efficiency, reduce energy waste, and quickly cut off the output in case of load abnormalities to ensure equipment safety. Simultaneously, it reduces harmonic interference and ensures power quality, serving as a core guarantee for equipment performance, efficiency, and safety.

[0003] However, existing frequency converters generally use traditional manual or partially electronic switching methods, which have long response times and cannot complete the switching of frequency converters in a short time. This cannot meet the needs of automation control scenarios with high real-time requirements. At the same time, they lack effective heat dissipation design, and the heat generated by the frequency converters cannot be dissipated in time, which can easily lead to excessively high local temperatures. This can cause accelerated aging of components, performance degradation, or even failure, affecting the reliability and stability of the entire system.

[0004] Therefore, we provide a fast switching device for frequency converter components to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a fast switching device for frequency converter components, which aims to solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a cabinet, the surface of which is provided with heat dissipation holes, a connecting groove is provided at the right end of the cabinet, a support rod is fixedly connected to the inner side of the cabinet, a partition is welded to the upper end of the support rod, heat dissipation components are provided on both sides of the partition, heat collection plates are provided on both sides of the partition, a support plate is installed at the lower end of the heat collection plate, a main frequency converter is provided on the lower inner surface of the cabinet, a secondary frequency converter is provided on the upper surface of the partition, a switching component is provided on the left side of the main frequency converter, a telescopic cylinder is provided on the left side of the main frequency converter, and a connecting rod is fixedly connected to the output end of the telescopic cylinder.

[0007] Preferably, the heat dissipation holes are evenly distributed on the front and rear surfaces of the cabinet, the heat dissipation holes are in the form of long rectangular structures, and the connecting grooves are in the form of rectangular structures.

[0008] Preferably, there are four sets of support rods, the support rods are welded to the partition, the surface of the partition is evenly provided with heat dissipation grooves, and the support rods are respectively distributed at the four corners of the lower surface of the partition.

[0009] Preferably, a heat conduction pipe is provided on the inner side of the support plate, the heat collection plate is made of copper, and the heat collection plate is fixedly connected to the cabinet through the support plate.

[0010] Preferably, the surface of the heat conduction tube is provided with a fixing clip, the heat conduction tube is fixedly connected to the support plate through the fixing clip, and a heat dissipation plate is provided on the outside of the heat conduction tube. The heat dissipation plate is made of aluminum and has strip-shaped heat dissipation grooves on its surface.

[0011] Preferably, a movable rod is fixedly connected to the end of the connecting rod away from the telescopic cylinder's telescopic end, an upper insertion block is installed on the upper end of the movable rod, and a secondary slot is provided at the end of the upper insertion block near the telescopic cylinder. The secondary slot is electrically connected to the secondary frequency converter component through a filter circuit.

[0012] Preferably, a lower insertion block is installed at the lower end of the moving rod, and a main slot is provided on the side of the lower insertion block away from the telescopic cylinder. The main slot is electrically connected to the main frequency converter component through a filter circuit.

[0013] This invention provides a fast switching device for frequency converter components. Compared with the prior art, it has the following advantages:

[0014] 1. This variable frequency drive (VFD) component rapid switching device rapidly captures heat from the main and auxiliary VFD components and the partition through copper heat collection plates on both sides. The heat is then efficiently transferred to an aluminum heat sink with strip-shaped heat dissipation grooves on its surface via a heat conduction pipe secured by a clamp on the inner side of the support plate. The lightweight and large contact area of ​​aluminum accelerates heat dissipation. Simultaneously, the heat dissipation grooves of the partition and the long rectangular heat dissipation holes at the front and rear of the cabinet form a convection channel, which, together with natural or forced convection, exhausts hot air, forming a loop of collection, conduction, and dissipation. Furthermore, the high thermal conductivity of copper is suitable for capturing instantaneous high heat, while the low cost and ease of processing of aluminum balance heat dissipation efficiency and structural load-bearing capacity. Moreover, no active heat dissipation components are required throughout the process, which reduces energy consumption and maintenance costs, and can dynamically adapt to the heat dissipation requirements of the VFD component load fluctuations, avoiding performance degradation or failure caused by local high temperature, and ensuring stable operation of the component.

[0015] 2. This variable frequency drive (VFD) component rapid switching device uses a telescopic cylinder as its power source, offering a fast response time and driving action within seconds. The core moving rod connects to upper and lower insertion blocks at its upper and lower ends, respectively. The synchronous linkage design ensures that the lower insertion block disengages from the main slot and the upper insertion block inserts into the auxiliary slot simultaneously, eliminating switching interruptions and avoiding downtime losses for external equipment. Structurally, the fully mechanical rigid connection provides strong anti-interference capabilities. The precise fit between the insertion block and the slot ensures stable electrical contact. Both the main and auxiliary slots are connected in series with filter circuits to filter out electrical interference during switching, protecting the component and external equipment. At the same time, the physical disconnect design completely eliminates the risk of short circuits caused by simultaneous conduction of the main and auxiliary components. It supports automatic signal-triggered switching, adapts to automation scenarios, reduces human error, has fewer core components, a simple structure, and is easy to maintain. It comprehensively ensures the speed, accuracy, and safety of the switching process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall inner structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the switching component structure of this utility model.

[0020] The diagram is labeled as follows: 1. Cabinet; 2. Ventilation hole; 3. Connection slot; 4. Support rod; 5. Partition; 6. Heat dissipation assembly; 601. Heat collection plate; 602. Support plate; 603. Heat conduction pipe; 604. Fixing clamp; 605. Heat dissipation plate; 7. Main inverter assembly; 8. Auxiliary inverter assembly; 9. Switching assembly; 901. Telescopic cylinder; 902. Connecting rod; 903. Moving rod; 904. Upper insertion block; 905. Auxiliary slot; 906. Lower insertion block; 907. Main slot. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4This utility model provides a technical solution: a frequency converter component quick switching device, including a cabinet 1, a heat dissipation hole 2 on the surface of the cabinet 1, a connecting groove 3 at the right end of the cabinet 1, a support rod 4 fixedly connected to the inner side of the cabinet 1, a partition 5 welded to the upper end of the support rod 4, heat dissipation components 6 on both sides of the partition 5, a heat collection plate 601 on both sides of the partition 5, a support plate 602 installed at the lower end of the heat collection plate 601, a main frequency converter component 7 on the lower inner surface of the cabinet 1, a secondary frequency converter component 8 on the upper surface of the partition 5, a switching component 9 on the left side of the main frequency converter component 7, a telescopic cylinder 901 on the left side of the main frequency converter component 7, and a connecting rod 902 fixedly connected to the output end of the telescopic cylinder 901.

[0023] The ventilation holes 2 are evenly distributed on the front and rear surfaces of the cabinet 1. The ventilation holes 2 are long rectangular structures, and the connecting grooves 3 are rectangular structures.

[0024] During use, the heat dissipation holes 2 are evenly distributed on the front and rear surfaces of the cabinet 1 and are directly connected to the outside air. The heat inside the cabinet can be discharged from the cabinet 1 through the heat dissipation holes 2 by natural convection or forced convection in conjunction with the heat dissipation components 6. The connection slot 3 serves as a rectangular structure interface, through which external cables or supporting equipment can be physically connected to the main frequency converter 7, auxiliary frequency converter 8 and other components inside the cabinet 1 to realize signal or power input and output. The heat dissipation holes 2 can maximize the heat dissipation and ventilation area, reduce airflow resistance, improve natural heat dissipation efficiency, and avoid local heat accumulation inside the cabinet.

[0025] There are four sets of support rods 4. The support rods 4 are welded to the partition plate 5. The surface of the partition plate 5 is evenly provided with heat dissipation grooves, and the support rods 4 are respectively distributed at the four corners of the lower surface of the partition plate 5.

[0026] During use, the four sets of support rods 4 are fixed to the lower inner surface of the cabinet 1 and distributed at the four corners of the lower surface of the partition 5. They are rigidly connected to the partition 5 by welding and jointly bear the weight of the partition 5 and the auxiliary frequency converter 8 above it. The heat dissipation grooves on the surface of the partition 5 utilize the principle of air convection to provide an additional heat dissipation channel for the auxiliary frequency converter 8, reducing the heat retention on the upper surface of the partition 5. The heat is then transferred downward to the lower space of the cabinet 1 through the heat dissipation grooves and discharged in conjunction with the heat dissipation components 6 and the heat dissipation holes 2 to achieve efficient cooling.

[0027] A heat conduction pipe 603 is provided on the inner side of the support plate 602, and the heat collection plate 601 is made of copper. The heat collection plate 601 is fixedly connected to the cabinet 1 through the support plate 602.

[0028] During use, the heat collection plate 601 in the heat dissipation component 6 is attached to both sides of the partition 5, which can quickly absorb the heat conducted to both sides by the partition 5, the main inverter component 7, and the auxiliary inverter component 8. The support plate 602 is installed at the lower end of the heat collection plate 601, and one end is fixedly connected to the cabinet 1 to provide stable support for the heat collection plate 601 and prevent it from shifting due to its own weight or vibration. The heat conduction pipe 603 set inside the support plate 602 is in contact with the heat collection plate 601, which can conduct the heat absorbed by the heat collection plate 601 to the subsequent heat dissipation components to achieve rapid heat dissipation.

[0029] A fixing clip 604 is provided on the surface of the heat conduction pipe 603. The heat conduction pipe 603 is fixedly connected to the support plate 602 through the fixing clip 604. A heat dissipation plate 605 is provided on the outside of the heat conduction pipe 603. The heat dissipation plate 605 is made of aluminum and has strip-shaped heat dissipation grooves on its surface.

[0030] During operation, the fixing clips 604 on the surface of the heat conduction pipe 603 are fixedly connected to the support plate 602 to prevent the heat conduction pipe 603 from shifting due to vibration, thus affecting the heat dissipation effect and ensuring stable heat transfer. The heat conduction pipe 603 conducts the heat absorbed by the heat collection plate 601 to the outer heat dissipation plate 605. The heat dissipation plate 605 increases the contact area with the air through the strip heat dissipation grooves on its surface, while also reducing the eddies during air flow, improving heat dissipation efficiency, and quickly dissipating the heat into the air inside the cabinet 1, and then exhausting it through the heat dissipation holes 2.

[0031] A movable rod 903 is fixedly connected to the end of the connecting rod 902 away from the telescopic end of the telescopic cylinder 901. An upper insertion block 904 is installed on the upper end of the movable rod 903. A secondary slot 905 is provided at the end of the upper insertion block 904 close to the telescopic cylinder 901. The secondary slot 905 is electrically connected to the secondary frequency converter component 8 through a filter circuit.

[0032] When the telescopic cylinder 901 extends or retracts, the connecting rod 902 drives the moving rod 903 to move horizontally. The upper insertion block 904 installed on the upper end of the moving rod 903 moves synchronously with the moving rod 903. When it is necessary to switch to the auxiliary frequency converter 8, the upper insertion block 904 moves towards the auxiliary slot 905 and finally inserts into the auxiliary slot 905. The auxiliary slot 905 is electrically connected to the auxiliary frequency converter 8 through a filter circuit. After the upper insertion block 904 is inserted into the auxiliary slot 905, the external circuit and the auxiliary frequency converter 8 form a conductive loop, and the auxiliary frequency converter 8 starts to work.

[0033] The lower end of the moving rod 903 is equipped with a lower insertion block 906. The side of the lower insertion block 906 away from the telescopic cylinder 901 is provided with a main slot 907. The main slot 907 is electrically connected to the main frequency converter 7 through a filter circuit.

[0034] The lower insertion block 906 installed at the lower end of the moving rod 903 moves synchronously with the moving rod 903. When the main frequency converter 7 needs to be used, the telescopic cylinder 901 drives the connecting rod 902 and the moving rod 903 to move, so that the lower insertion block 906 moves towards the main slot 907 and is finally inserted into the main slot 907. The main slot 907 is electrically connected to the main frequency converter 7 through a filter circuit. After the lower insertion block 906 is inserted into the main slot 907, the external circuit and the main frequency converter 7 form a conductive loop, and the main frequency converter 7 is put into operation.

[0035] Working principle: When using this frequency converter component for rapid switching, the external cable or supporting equipment is first physically connected to the main frequency converter component 7 and the auxiliary frequency converter component 8 inside the cabinet 1 through the rectangular connection slot 3 at the right end of the cabinet 1, so as to realize the input and output of signals or power, and provide the necessary external conditions for the operation of the entire device.

[0036] Subsequently, after the device is started, the main frequency converter 7 is activated by default. At this time, the telescopic cylinder 901 is in the initial extended state, and the moving rod 903 is moved by the connecting rod 902, so that the lower insertion block 906 at the lower end of the moving rod 903 is inserted into the main slot 907. The main slot 907 is electrically connected to the main frequency converter 7 through the filter circuit. The external circuit and the main frequency converter 7 form a conductive loop, and the main frequency converter 7 starts to run, providing frequency conversion function for external equipment.

[0037] When the main inverter component 7 malfunctions or needs to be switched to the auxiliary inverter component 8, the switching signal triggers the telescopic cylinder 901 to operate. The output end of the telescopic cylinder 901 drives the connecting rod 902 to move. The connecting rod 902 pulls the moving rod 903 to move horizontally. The lower insertion block 906 at the lower end of the moving rod 903 moves synchronously with it and gradually disengages from the main slot 907. The external circuit is disconnected from the conduction circuit of the main inverter component 7, and the main inverter component 7 stops working. At the same time, the upper insertion block 904 at the upper end of the moving rod 903 moves towards the auxiliary slot 905 and finally inserts into the auxiliary slot 905. The auxiliary slot 905 is electrically connected to the auxiliary inverter component 8 through the filter circuit. The external circuit and the auxiliary inverter component 8 form a conduction circuit, and the auxiliary inverter component 8 starts running, completing the rapid switching of components.

[0038] During the operation of the main inverter component 7 or the auxiliary inverter component 8, the heat generated by both will be transferred to the surroundings. The heat collection plates 601 on both sides of the inner partition 5 of the cabinet 1 quickly absorb the heat conducted by the partition 5, the main inverter component 7 and the auxiliary inverter component 8. The heat collection plates 601 transfer the heat to the heat conduction pipe 603 inside the support plate 602. Under the fixing action of the fixing clamp 604, the heat conduction pipe 603 stably conducts the heat to the outer aluminum heat sink 605. The heat sink 605 increases the contact area with the air through the surface strip heat dissipation grooves, and quickly dissipates the heat into the air inside the cabinet 1. At the same time, the heat dissipation grooves on the surface of the partition 5 utilize air convection to provide an additional heat dissipation channel for the auxiliary inverter component 8 and reduce heat retention.

[0039] Finally, the hot air inside the cabinet 1 is exhausted outside the cabinet 1 through the long rectangular heat dissipation holes 2 evenly distributed on the front and rear sides, in the form of natural convection or forced convection, thereby achieving cooling inside the cabinet and ensuring stable operation of the components. This completes the use of a frequency converter component rapid switching device.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fast switching device for frequency converter components, comprising a cabinet (1), characterized in that: The surface of the cabinet (1) is provided with heat dissipation holes (2), the right end of the cabinet (1) is provided with a connecting groove (3), the inner side of the cabinet (1) is fixedly connected with a support rod (4), the upper end of the support rod (4) is welded with a partition (5), the two sides of the partition (5) are provided with heat dissipation components (6), the two sides of the partition (5) are provided with heat collection plates (601), the lower end of the heat collection plate (601) is installed with a support plate (602), the lower inner surface of the cabinet (1) is provided with a main frequency converter (7), the upper surface of the partition (5) is provided with a secondary frequency converter (8), the left side of the main frequency converter (7) is provided with a switching component (9), the left side of the main frequency converter (7) is provided with a telescopic cylinder (901), the output end of the telescopic cylinder (901) is fixedly connected with a connecting rod (902).

2. The variable frequency drive (VFD) component fast switching device according to claim 1, characterized in that, The heat dissipation holes (2) are evenly distributed on the front and rear surfaces of the cabinet (1). The heat dissipation holes (2) are in the form of a long rectangular structure, and the connecting groove (3) is in the form of a rectangular structure.

3. The variable frequency drive (VFD) component fast switching device according to claim 1, characterized in that, There are four sets of support rods (4). The support rods (4) are welded to the partition (5). The surface of the partition (5) is evenly provided with heat dissipation grooves, and the support rods (4) are respectively distributed at the four corners of the lower surface of the partition (5).

4. The variable frequency drive (VFD) component fast switching device according to claim 1, characterized in that, The inner side of the support plate (602) is provided with a heat conduction pipe (603), the heat collection plate (601) is made of copper, and the heat collection plate (601) is fixedly connected to the cabinet (1) through the support plate (602).

5. A frequency converter fast switching device according to claim 4, characterized in that, The heat conduction pipe (603) is provided with a fixing clip (604) on its surface. The heat conduction pipe (603) is fixedly connected to the support plate (602) through the fixing clip (604). A heat dissipation plate (605) is provided on the outside of the heat conduction pipe (603). The heat dissipation plate (605) is made of aluminum and has strip-shaped heat dissipation grooves on its surface.

6. The variable frequency drive (VFD) component fast switching device according to claim 1, characterized in that, The end of the connecting rod (902) away from the telescopic end of the telescopic cylinder (901) is fixedly connected to a moving rod (903). An upper insertion block (904) is installed on the upper end of the moving rod (903). A secondary slot (905) is provided on the end of the upper insertion block (904) close to the telescopic cylinder (901). The secondary slot (905) is electrically connected to the secondary frequency converter component (8) through a filter circuit.

7. A frequency converter fast switching device according to claim 6, characterized in that, The lower end of the moving rod (903) is equipped with a lower insertion block (906), and a main slot (907) is provided on the side of the lower insertion block (906) away from the telescopic cylinder (901). The main slot (907) is electrically connected to the main frequency converter component (7) through a filter circuit.

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