Variable frequency drive device with easy disassembly

Abstract

This utility model discloses an easily disassembled frequency converter device, relating to the field of frequency converter technology. The utility model includes: a mounting plate, a vibration-damping frame, and a frequency converter body. The mounting plate has four mounting holes, a mounting groove on one side, and multiple positioning grooves on opposite sides of the mounting groove. Two slots are located on the upper side of the mounting plate, communicating with the multiple positioning grooves on the same side. Insert rods are installed within the slots. This utility model, through the insertion rods, allows for quick pre-positioning and locking of the vibration-damping frame by inserting them into the through holes of the positioning blocks and engaging with the positioning grooves of the mounting plate, avoiding the cumbersome operation of traditional bolt connections. Furthermore, the pointed end of the rod, through a chamfered bevel, presses against the rectangular barrel, driving the vibration-damping pressing plate to move synchronously and engage with the recess in the frequency converter body. The elastic force of a first spring forms an adaptive clamping mechanism, allowing for the fixation of the frequency converter body without additional tools, thus improving installation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of frequency converter technology, specifically, it relates to a frequency converter device that is easy to disassemble. Background Technology

[0002] As a core power control device in the field of industrial automation, the frequency converter adjusts the power supply frequency of the motor through frequency conversion technology and microelectronic technology to achieve precise control of the AC motor. It integrates key modules such as rectification, filtering, inversion, braking units, drive units, detection units, and microprocessor units, and is widely used in industrial transmission, energy management, and other scenarios. However, when internal components of the frequency converter are damaged or require maintenance, traditional fixing methods rely on bolt tightening, which requires special tools and involves cumbersome disassembly steps, severely impacting maintenance efficiency.

[0003] In the prior art, such as the publication number CN220857892U, entitled "An Inverter for Easy Installation and Removal," the device includes an installation plate. The installation plate is characterized by: holes at all four corners of its surface; two vertical plates on its front surface; an L-shaped plate at its bottom; a support plate above the L-shaped plate; multiple first springs between the support plate and the L-shaped plate; threaded holes inside the vertical plates; rotating rods passing through the threaded holes; threads at one end of the rotating rods; clamping plates rotatably connecting the two rotating rods close to each other at one end; multiple second springs between the clamping plates and the vertical plates; a slot on the front surface of the installation plate; a U-shaped groove on one side of the slot; a fixing device within the U-shaped groove; and an inverter body at the front end of the installation plate.

[0004] However, in actual use, since the vertical plate is fixed to the mounting plate, and the second spring is fixedly connected to the vertical plate, and the fixing device is located inside the mounting plate, the second spring used for shock absorption and the fixing device used to fix the inverter body will be damaged during long-term use of the inverter. Furthermore, since the fixing device is located inside the mounting plate, it is not easy to maintain the fixing device when maintaining the inverter body. If the fixing device needs to be replaced, the mounting plate must be removed. Therefore, the maintenance process of the mounting plate is relatively troublesome and the maintenance cost is high.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a frequency converter device that is easy to disassemble, thus solving the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A frequency converter device that is easy to disassemble includes: a mounting plate, a vibration-resistant frame, and a frequency converter body;

[0009] The mounting plate has four mounting holes, a mounting groove on one side, multiple positioning grooves on both sides of the mounting groove, and two slots on the upper side of the mounting plate. The slots are connected to the multiple positioning grooves on the same side, and insert rods are installed in the slots.

[0010] The seismic frame is installed in the mounting groove. Multiple positioning blocks are provided on both sides of the seismic frame. A through hole is opened on one side of the positioning block, and a seismic fixing component is installed inside the positioning block.

[0011] The seismic fixing components include elastic telescopic rods, one end of which has a chamfer, and the other end of which passes through the seismic frame and is connected to a seismic compression plate. The inverter body is located between multiple seismic compression plates.

[0012] Optionally, the positioning block is provided with a channel, which is connected to the through hole. The elastic telescopic rod includes a rectangular barrel, and a rectangular slide rod is slidably fitted inside the rectangular barrel. A first spring is provided between one end of the rectangular slide rod and one side of the inner wall of the rectangular barrel.

[0013] Optionally, a groove is provided on one side of the anti-vibration extrusion plate, and a second spring is provided at the top and bottom of the inner wall of the groove. One end of the two second springs is respectively connected to the upper and lower sides of the end of the rectangular slide bar, and multiple notches are provided on the opposite sides of the inverter body.

[0014] Optionally, the mounting plate includes a mounting frame, two upright plates and two horizontal plates, with the two upright plates positioned on both sides of the mounting frame and the horizontal plates positioned on one side of the upright plates.

[0015] Optionally, two cooling fans are provided on one side of the mounting frame, and multiple heat sinks are provided on one side of the inverter body.

[0016] Optionally, one end of the insertion rod has a pointed tip, the other end of the insertion rod has a handle, the periphery of the insertion rod near the pointed tip has a threaded protrusion, and the bottom of the slot has a nut.

[0017] Optionally, a limiting groove is provided on one side of the slot, and a limiting block is provided on one side of the nut. The limiting block slides in the limiting groove, and a third spring is provided between the nut and the bottom of the slot.

[0018] Optionally, a ratchet ring is provided at the slot opening, and multiple spring clips are inclined around the periphery of the insertion rod.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0020] 1. By using the inserted rod, on the one hand, the anti-vibration frame can be quickly positioned and locked by inserting it into the through hole of the positioning block and cooperating with the positioning groove of the mounting plate, avoiding the cumbersome operation of traditional bolt connection. On the other hand, its tip can squeeze the rectangular barrel through the chamfered bevel, driving the anti-vibration squeezing plate to move synchronously and be inserted into the notch of the inverter body. The elastic force of the first spring forms an adaptive clamping, and the inverter body can be fixed without additional tools, improving installation efficiency.

[0021] 2. The elastic telescopic rod can absorb lateral vibration energy through the first spring, and the anti-vibration squeezing plate can move longitudinally through the second spring to adapt to the vibration displacement of the equipment, thereby reducing the impact of external vibration on the precision components inside the frequency converter and extending the service life of the frequency converter body.

[0022] 3. With the cooling fan and multiple heat sinks, a heat dissipation channel can be formed to continuously dissipate heat, avoiding the decrease in control accuracy or component aging caused by high temperature, and ensuring the long-term stable operation of the inverter body.

[0023] 4. The anti-vibration fastener adopts a grooved installation structure without additional limits. When a single elastic telescopic rod or anti-vibration compression plate is damaged due to long-term vibration, it is not necessary to disassemble the entire frequency converter device. Simply remove the plug rod and pull the damaged part directly out of the groove of the positioning block to complete the quick removal and replacement, thereby reducing maintenance time and spare parts costs.

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0026] Figure 1 This is a three-dimensional structural diagram of the frequency converter device;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the frequency converter device;

[0028] Figure 3 This is a schematic diagram of the back structure of the frequency converter device;

[0029] Figure 4 This is a schematic diagram of the seismic fastener structure;

[0030] Figure 5 This is a schematic diagram of the slot structure.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] Mounting plate 1, mounting hole 2, mounting groove 3, positioning groove 4, slot 5, insertion rod 6, anti-vibration frame 7, positioning block 8, anti-vibration fastener 9, elastic telescopic rod 10, anti-vibration compression plate 11, inverter body 12, cooling fan 13, heat sink 14, groove 15, second spring 16, rectangular barrel 17, rectangular slide bar 18, first spring 19, column 20, slide groove 21, mounting frame 22, upright plate 23, horizontal plate 24, handle 25, nut 26, limiting groove 27, limiting block 28, pawl toothed ring 29, spring piece 30, third spring 31.

[0033] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] Please see Figure 1-5 As shown, this embodiment provides a frequency converter device that is easy to disassemble, including: a mounting plate 1, a shock-resistant frame 7, and a frequency converter body 12;

[0036] The mounting plate 1 has four mounting holes 2. One side of the mounting plate 1 has a mounting groove 3. Multiple positioning grooves 4 are provided on both sides of the mounting groove 3. Two slots 5 are provided on the upper side of the mounting plate 1. The slots 5 are connected to the multiple positioning grooves 4 on the same side. A plug rod 6 is provided in the slot 5.

[0037] The seismic frame 7 is installed in the mounting groove 3. Multiple positioning blocks 8 are provided on both sides of the seismic frame 7. A through hole is opened on one side of the positioning block 8. Seismic fixing parts 9 are provided in the positioning block 8.

[0038] The seismic fixing component 9 includes an elastic telescopic rod 10. One end of the elastic telescopic rod 10 is chamfered, and the other end of the elastic telescopic rod 10 passes through the seismic frame 7 and is connected to a seismic compression plate 11. The inverter body 12 is located between multiple seismic compression plates 11.

[0039] In this embodiment, the positioning block 8 has a channel that communicates with the through hole. The elastic telescopic rod 10 includes a rectangular barrel 17, in which a rectangular slide rod 18 is slidably fitted. A first spring 19 is provided between one end of the rectangular slide rod 18 and one side of the inner wall of the rectangular barrel 17. In this embodiment, the anti-vibration compression plate 11 has a groove 15 on one side. A second spring 16 is provided at the top and bottom of the inner wall of the groove 15. One end of each of the two second springs 16 is connected to the upper and lower sides of the end of the rectangular slide rod 18, respectively. Multiple notches are provided on opposite sides of the inverter body 12. A column 20 is provided in the groove 15. A sliding groove 21 is provided on the rectangular slide rod 18. The rectangular slide rod 18 is sleeved and slidably fitted on the column 20 through the sliding groove 21. The second spring 16 is sleeved on the column 20.

[0040] The mounting plate 1 in this embodiment includes a mounting frame 22, two upright plates 23 and two horizontal plates 24. The two upright plates 23 are disposed on both sides of the mounting frame 22, and the horizontal plates 24 are disposed on one side of the upright plates 23.

[0041] In this embodiment, two cooling fans 13 are provided on one side of the mounting frame 22, and multiple heat sinks 14 are provided on one side of the inverter body 12.

[0042] In this embodiment, one end of the insertion rod 6 is provided with a pointed tip, and the other end of the insertion rod 6 is provided with a handle 25. The periphery of the insertion rod 6 near the pointed tip is provided with a threaded protrusion, and the bottom of the slot 5 is provided with a nut 26. In this embodiment, a limiting groove 27 is provided on one side of the slot 5, and a limiting block 28 is provided on one side of the nut 26. The limiting block 28 is slidably engaged in the limiting groove 27. A third spring 31 is provided between the nut 26 and the bottom of the slot 5. In this embodiment, a pawl ring 29 is provided at the opening of the slot 5, and multiple spring pieces 30 are obliquely provided on the periphery of the insertion rod 6.

[0043] Working principle:

[0044] I. Installation and Fixing Process

[0045] Basic installation: The mounting plate 1 is fixed to the electrical cabinet through the mounting holes 2 on the horizontal plate 24 and screws of the prior art. The mounting frame 22, the vertical plate 23 and the horizontal plate 24 are integral molding structures. The three are formed into a rigid frame without separation joints through integral casting, injection molding or welding process. The vertical plate 23 is vertically fixed to both sides of the mounting frame 22, and the horizontal plate 24 is horizontally connected to one side of the vertical plate 23, thereby ensuring installation stability.

[0046] Seismic frame positioning: The seismic frame 7 is embedded into the mounting groove 3 of the mounting plate 1, so that the positioning blocks 8 on both sides of the seismic frame are engaged into the positioning grooves 4 on both sides of the mounting groove 3, thus completing the initial positioning;

[0047] Inverter body fixing: Place the inverter body 12 inside the anti-vibration frame 7, hold the body and align it, then insert the plug rod 6 into the slot 5; the tip of the plug rod 6 moves along the through hole of the positioning block 8, and squeezes the rectangular barrel 17 of the elastic telescopic rod 10 through the chamfered bevel, pushing it to move towards the inverter body 12, and the rectangular slide rod 18 drives the anti-vibration compression plate 11 to embed into the recesses on both sides of the inverter body 12; at this time, the rectangular slide rod 18 slides in the rectangular barrel 17 and compresses the first spring 19 to form an elastic clamping force and fix the inverter body 12;

[0048] Threaded locking and anti-loosening: When the threaded protrusion at the end of the insertion rod 6 contacts the nut 26 at the bottom of the slot 5, the spring piece 30 on the periphery of the insertion rod 6 just engages with the pawl ring 29 at the opening of the slot 5; rotating the insertion rod 6, the threaded protrusion engages with the nut 26 to achieve connection; at the same time, the one-way engagement structure of the spring piece 30 and the pawl ring 29 effectively resists loosening caused by vibration, completing double fixation.

[0049] II. Disassembly and Maintenance Process

[0050] Unlock: Manually pull the handle 25 at the end of the insertion rod 6 to move the insertion rod 6 upward. The threaded protrusion simultaneously pulls the nut 26 and stretches the third spring 31, causing the spring piece 30 to disengage from the tooth groove of the pawl ring 29.

[0051] Thread separation: Rotate the insert rod 6 in the opposite direction. Since the nut 26 slides in the limiting groove 27 of the slot 5 through the limiting block 28, it can only move up and down and cannot rotate. Therefore, the insert rod 6 can quickly disconnect the threaded connection with the nut 26.

[0052] Component disassembly: After the insertion rod 6 is completely pulled out of the slot 5, the anti-vibration frame 7 loses its limit and can be directly removed from the mounting slot 3; if the anti-vibration fixing part 9 needs to be replaced, since the positioning block 8 has no additional limit structure in the channel, the elastic telescopic rod 10 can be directly pulled out from the channel, realizing convenient maintenance.

[0053] III. Earthquake Resistance and Heat Dissipation Mechanisms

[0054] Vibration damping: The inverter body 12 is allowed to move slightly in the vertical direction through the cooperation of the vibration damping plate 11 and the second spring 16. Combined with the first spring 19 of the elastic telescopic rod 10 to dampen vibration, the double spring structure effectively absorbs the vibration energy generated by equipment operation or external impact.

[0055] Heat dissipation design: The cooling fan 13 on one side of the mounting frame 22 and the heat sink 14 of the inverter body 12 form a heat dissipation channel to continuously dissipate heat and ensure that the inverter body 12 operates at a stable temperature.

[0056] Beneficial effects:

[0057] By using the inserted rod 6, on the one hand, by inserting it into the through hole of the positioning block 8 and cooperating with the positioning groove 4 of the mounting plate 1, the pre-positioning and locking of the anti-vibration frame 7 can be quickly achieved, avoiding the cumbersome operation of traditional bolt connection. On the other hand, it can make its tip squeeze the rectangular barrel 17 through the chamfered bevel, drive the anti-vibration compression plate 11 to move synchronously and be inserted into the notch of the inverter body 12, and use the elastic force of the first spring 19 to form an adaptive clamping, so that the inverter body 12 can be fixed without additional tools, improving installation efficiency.

[0058] The elastic telescopic rod 10 can absorb lateral vibration energy through the first spring 19, and the anti-vibration squeezing plate 11 can move longitudinally through the second spring 16 to adapt to the vibration displacement of the equipment, thereby reducing the impact of external vibration on the precision components inside the frequency converter and extending the service life of the frequency converter body 12.

[0059] The cooling fan 13 and multiple heat sinks 14 form a heat dissipation channel to continuously dissipate heat, avoiding the decrease in control accuracy or component aging caused by high temperature, and ensuring the long-term stable operation of the inverter body 12.

[0060] The anti-vibration fastener 9 adopts a slot installation structure without additional limits. When a single elastic telescopic rod 10 or anti-vibration compression plate 11 is damaged due to long-term vibration, it is not necessary to disassemble the entire inverter device. The damaged part can be quickly removed and replaced by simply removing the plug rod 6 and pulling it directly out of the slot of the positioning block 8, thereby reducing maintenance time and spare parts costs.

[0061] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A frequency converter device that is easy to disassemble, characterized in that, include: Mounting plate (1), anti-vibration frame (7) and inverter body (12); The mounting plate (1) has four mounting holes (2), and a mounting groove (3) is provided on one side of the mounting plate (1). Multiple positioning grooves (4) are provided on both sides of the mounting groove (3). Two slots (5) are provided on the upper side of the mounting plate (1). The slots (5) are connected to the multiple positioning grooves (4) on the same side. A plug rod (6) is provided in the slot (5). The seismic frame (7) is set in the mounting groove (3). Multiple positioning blocks (8) are provided on both sides of the seismic frame (7). A through hole is opened on one side of the positioning block (8). Seismic fixing component (9) is provided in the positioning block (8). The seismic fixing component (9) includes an elastic telescopic rod (10), one end of which is chamfered, and the other end of which passes through the seismic frame (7) and is connected to a seismic compression plate (11). The inverter body (12) is located between multiple seismic compression plates (11).

2. The inverter device for easy disassembly according to claim 1, characterized in that, The positioning block (8) is provided with a channel, which is connected to the through hole. The elastic telescopic rod (10) includes a rectangular barrel (17), and a rectangular slide rod (18) is slidably fitted inside the rectangular barrel (17). A first spring (19) is provided between one end of the rectangular slide rod (18) and one side of the inner wall of the rectangular barrel (17).

3. The easily disassembled frequency converter device according to claim 2, characterized in that, A groove (15) is provided on one side of the anti-vibration extrusion plate (11). A second spring (16) is provided at the top and bottom of the inner wall of the groove (15). One end of the two second springs (16) is connected to the upper and lower sides of the end of the rectangular slide bar (18). Multiple notches are provided on the opposite sides of the inverter body (12).

4. The easily disassembled frequency converter device according to claim 1, characterized in that, The mounting plate (1) includes a mounting frame (22), two upright plates (23) and two horizontal plates (24). The two upright plates (23) are located on both sides of the mounting frame (22), and the horizontal plates (24) are located on one side of the upright plates (23).

5. The easily disassembled frequency converter device according to claim 4, characterized in that, Two cooling fans (13) are provided on one side of the mounting frame (22), and multiple heat sinks (14) are provided on one side of the inverter body (12).

6. The easily disassembled frequency converter device according to claim 1, characterized in that, One end of the insertion rod (6) is provided with a tip, and the other end of the insertion rod (6) is provided with a handle (25). The periphery of the insertion rod (6) near the tip is provided with a threaded protrusion, and the bottom of the slot (5) is provided with a nut (26).

7. The easily disassembled frequency converter device according to claim 6, characterized in that, A limiting groove (27) is provided on one side of the slot (5), and a limiting block (28) is provided on one side of the nut (26). The limiting block (28) slides in the limiting groove (27), and a third spring (31) is provided between the nut (26) and the bottom of the slot (5).

8. The easily disassembled frequency converter device according to claim 7, characterized in that, The slot (5) opening is provided with a pawl ring (29), and the insert (6) is provided with multiple spring pieces (30) at an angle around its periphery.

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