Frequency converter structure with good locking effect

Abstract

This invention provides a frequency converter structure with good locking effect for use in the field of frequency converters. It includes a back plate mechanism and a base plate mechanism. The back plate mechanism includes a back plate body with a sliding latch. One end of the sliding latch has a grooved locking block and a wedge-shaped locking block. The base plate mechanism includes a base plate body with a baffle plate. The baffle plate has a locking groove and a locking plate. Two sets of symmetrically arranged limiting rods are fixed on the side of the back plate body corresponding to the base plate body. The length of the limiting rods is equal to the relative distance between the two sets of baffles. A tension spring has an elastic force to drive the sliding latch closer to the baffle plate. An arc-shaped guide groove is provided on the side of the baffle plate away from the base plate body. This application, through the cooperation of the sliding latch and the baffle plate and the unlocking design of the rotating handle, allows for tool-free installation and disassembly, shortening the single operation time and improving efficiency compared to traditional bolt installation.

Description

Technical Field

[0001] This application relates to the field of frequency converters, and in particular to a frequency converter structure with good locking effect. Background Technology

[0002] In the field of industrial automation, frequency converters are core devices for regulating motor speed and operating status, and their installation stability directly affects the reliability of system operation. Traditional frequency converter installation methods mainly have the following problems:

[0003] Low bolt fixing efficiency: Using bolts to fix the inverter backplate to the mounting base plate requires screwdrivers, wrenches, and other tools for each installation, which is time-consuming. Statistics show that a single installation takes an average of about 15 minutes, severely impacting equipment installation and maintenance efficiency. For example, in large production line equipment maintenance, frequent disassembly and installation of the inverter can lead to extended downtime. Poor heat dissipation: Some traditional mounting structures have loose contact, resulting in an air layer between the inverter backplate and the base plate, hindering heat conduction, causing the inverter's operating temperature to rise, and shortening its lifespan.

[0004] Therefore, there is an urgent need for a frequency converter structure that can achieve rapid installation and optimized heat dissipation. Summary of the Invention

[0005] The purpose of this application is to solve the technical problems of low installation efficiency and poor heat dissipation of traditional frequency converters. Compared with the prior art, it provides a frequency converter structure with good locking effect, including a back plate mechanism installed on the back of the frequency converter and a base plate mechanism that cooperates with the back plate mechanism. The back plate mechanism includes a back plate body, and sliding locking tongues are slidably connected to both sides of the back plate body. One end of the sliding locking tongue is provided with a groove locking block and a wedge-shaped locking block. A cover plate is also fixed on the back plate body, and a tension spring is fixed between the sliding locking tongue and the cover plate.

[0006] The base plate mechanism includes a base plate body, on which baffles corresponding to the sliding latch are fixed. The baffles are provided with locking grooves that cooperate with the recessed locking blocks and locking plates that cooperate with the wedge-shaped locking blocks. On the side of the back plate body corresponding to the base plate body, two sets of symmetrically arranged limiting rods are also fixed. The length of the limiting rods is equal to the relative distance between the two sets of baffles. The tension spring has an elastic force to drive the sliding latch closer to the baffles. On the side of the baffles away from the base plate body, an arc-shaped guide groove is also provided.

[0007] Furthermore, the sliding lock tongue is also provided with an eccentric groove, and the back plate body is symmetrically connected to two sets of rotating shafts on the side away from the frequency converter. The ends of the rotating shafts are all fixed with eccentric blocks that cooperate with the eccentric grooves, and the middle of the rotating shafts is all fixed with N-type lever arms.

[0008] The backplate mechanism is also equipped with an unlocking mechanism for adjusting the deflection angle of the eccentric block.

[0009] Furthermore, the unlocking mechanism includes a rotating ring rotatably connected to the back plate body, and the circumferential side of the rotating ring is provided with an annular corrugated groove that cooperates with the N-type lever arm.

[0010] A rotating handle is also fixed to one side of the rotating ring.

[0011] Furthermore, when the rotating handle deflects downwards, the annular corrugated groove drives the N-shaped lever arm to rotate closer to the base plate body, and the rotating handle has a built-in counterweight.

[0012] Furthermore, the backplate body is provided with heat dissipation fins on the side where it is fixed to the frequency converter.

[0013] Compared to existing technologies, the advantages of this application are:

[0014] This application utilizes the cooperation of a sliding locking tongue and a baffle, along with a rotating handle for unlocking, enabling tool-free installation and disassembly. This reduces single-operation time and improves efficiency compared to traditional bolt installation. The dual locking structure of the grooved locking block and locking groove, and the wedge-shaped locking block and locking plate, combined with the continuous preload of the tension spring, reduces the frequency converter's loosening failure rate under vibration environments, improving its vibration resistance. The heat dissipation fins and tightly fitted mounting structure effectively reduce the frequency converter's operating temperature, extending the equipment's service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of this application;

[0016] Figure 2 This is a schematic diagram of the exploded structure of this application;

[0017] Figure 3 This is a partial structural diagram of this application;

[0018] Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle;

[0019] Figure 5 This is a schematic diagram of the back structure of the backplate mechanism proposed in this application;

[0020] Figure 6 This is a schematic diagram of the unlocking mechanism and rotating shaft proposed in this application;

[0021] Figure 7 This is a schematic diagram of the unlocking mechanism proposed in this application.

[0022] Explanation of the labels in the diagram:

[0023] 1. Inverter; 2. Backplate mechanism; 21. Backplate body; 22. Cover plate; 23. Tension spring; 24. Sliding latch; 241. Groove locking block; 242. Wedge-shaped locking block; 243. Eccentric groove; 25. Eccentric block; 26. Rotating shaft; 261. N-type lever arm; 27. Limiting rod; 3. Base plate mechanism; 31. Base plate body; 32. Baffle; 321. Arc-shaped guide groove; 322. Locking groove; 323. Locking plate; 4. Unlocking mechanism; 41. Rotating handle; 42. Rotating ring; 43. Annular corrugated groove. Detailed Implementation

[0024] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0025] Example:

[0026] This invention provides a frequency converter structure with good locking effect; please refer to [link / reference]. Figures 1-7 It includes a backplate mechanism 2 installed on the back of the inverter 1 and a base plate mechanism 3 that cooperates with the backplate mechanism 2. The specific structure is as follows:

[0027] The backplate body 21 serves as an intermediate component connecting the inverter 1 and the base plate mechanism 3. Both sides of the backplate body 21 are provided with sliding latches 24 that are slidably connected. One end of the sliding latches 24 is provided with a grooved locking block 241 and a wedge-shaped locking block 242. The grooved locking block 241 is used to cooperate with the arc-shaped guide groove 321 of the base plate mechanism 3 to realize the automatic retraction of the sliding latches 24 during the engagement process, and to provide vertical locking after locking. The wedge-shaped locking block 242 is used to cooperate with the locking plate 323 to generate vertical clamping force. The cover plate 22 is fixed on the backplate body 21. The tension spring 23 connects the sliding latches 24 and the cover plate 22, providing continuous elastic force to the sliding latches 24 so that it always keeps close to the baffle 32, ensuring the reliability of locking.

[0028] The base plate 31 serves as the mounting base, on which a baffle 32 corresponding to the sliding latch 24 is fixed. The baffle 32 is provided with a locking groove 322, a locking plate 323 and an arc-shaped guide groove 321. The locking groove 322 cooperates with the recessed locking block 241 to form a mechanical latch. The locking plate 323 cooperates with the wedge-shaped locking block 242 to achieve vertical clamping. The arc-shaped guide groove 321 is located on the side of the baffle 32 away from the base plate 31 and is used to guide the sliding latch 24 to slide during installation to achieve automatic pre-tightening.

[0029] Two sets of symmetrically arranged limiting rods 27 are fixed on the side of the back plate body 21 corresponding to the substrate body 31. Their length is equal to the relative distance between the two sets of baffles 32, ensuring that the back plate body 21 and the substrate body 31 are precisely aligned, limiting the horizontal direction and preventing misalignment during installation.

[0030] Furthermore, the sliding latch 24 is provided with an eccentric groove 243. The back plate body 21 is symmetrically connected to two sets of rotating shafts 26 on the side away from the inverter 1. An eccentric block 25 that cooperates with the eccentric groove 243 is fixed at the end of the rotating shaft 26. The eccentric block 25 is driven to slide in the eccentric groove 243 by rotating the rotating shaft 26, thereby realizing the retraction and unlocking of the sliding latch 24.

[0031] The rotating shaft 26 has an N-shaped lever arm 261 fixed in the middle. The unlocking mechanism 4 includes a rotating ring 42 rotatably connected to the back plate body 21. The circumferential side of the ring 42 is provided with an annular corrugated groove 43 that cooperates with the N-shaped lever arm 261. When the rotating ring 42 rotates, the annular corrugated groove 43 pushes the N-shaped lever arm 261 to drive the rotating shaft 26 to rotate.

[0032] The rotating handle 41 is fixed to one side of the rotating ring 42 and has a built-in counterweight. When the rotating handle 41 is deflected downward, the annular corrugated groove 43 drives the N-shaped lever arm 261 to rotate towards the base plate body 31, using gravity to assist the locking action. When unlocking is required, the rotating handle 41 is pushed up, and the annular corrugated groove 43 drives the N-shaped lever arm 261 to rotate in the opposite direction. Then, by using the cooperation of the eccentric block 25 and the eccentric groove 243, the four sets of sliding lock tongues 24 are simultaneously moved away from the baffle 32 to unlock.

[0033] The backplate body 21 is provided with heat dissipation fins on the side where it is fixed to the inverter 1 to increase the heat dissipation area. At the same time, the backplate mechanism 2 and the base plate mechanism 3 are tightly fitted to eliminate air layers and improve heat conduction efficiency.

[0034] During installation, fix the backplate mechanism 2 to the back of the inverter 1 to ensure a secure installation.

[0035] Fix the base plate mechanism 3 in the installation position, such as on the equipment cabinet or rack. Hold the inverter 1 and align the sliding locking tongue 24 of the back plate mechanism 2 with the arc-shaped guide groove 321 on the baffle 32 of the base plate mechanism 3. Slowly push the inverter 1.

[0036] During the pushing process, the sliding bolt 24 slides along the arc-shaped guide groove 321, and the tension spring 23 is compressed. When the sliding bolt 24 reaches the designated position, the grooved locking block 241 automatically engages with the locking groove 322, and the wedge-shaped locking block 242 fits tightly with the locking plate 323, completing the installation. The whole process requires no tools and has a short operation time.

[0037] When unlocking and disassembly are required, grasp the rotating handle 41 and deflect it upwards. The rotating handle 41 drives the rotating ring 42 to rotate, and the annular corrugated groove 43 pushes the N-shaped lever arm 261 to rotate the rotating shaft 26. The eccentric block 25 slides in the eccentric groove 243, pulling the sliding lock tongue 24 back. When the sliding lock tongue 24 retracts to a certain extent, the grooved lock block 241 disengages from the lock groove 322, and the wedge-shaped lock block 242 separates from the lock plate 323. At this time, the inverter 1 can be easily removed from the base plate mechanism 3.

[0038] This application utilizes the cooperation between the sliding locking tongue 24 and the baffle 32, along with the unlocking design of the rotating handle 41, to complete installation and disassembly without tools, shortening the single operation time and improving efficiency compared to traditional bolt installation. The double locking structure of the grooved locking block 241 and locking groove 322, and the wedge-shaped locking block 242 and locking plate 323, combined with the continuous preload of the tension spring 23, reduces the loosening failure rate of the frequency converter under vibration environments, improving its vibration resistance. The heat dissipation fins and the tightly fitted installation structure effectively reduce the operating temperature of the frequency converter, extending the equipment's service life.

[0039] The above description is merely the best implementation method adopted in light of current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A frequency converter structure with good locking effect, comprising a back plate mechanism (2) mounted on the back of the frequency converter (1) and a base plate mechanism (3) cooperating with the back plate mechanism (2), characterized in that, The back plate mechanism (2) includes a back plate body (21), and sliding latches (24) are slidably connected to both sides of the back plate body (21). One end of the sliding latches (24) is provided with a grooved locking block (241) and a wedge-shaped locking block (242). A cover plate (22) is also fixed on the back plate body (21), and a tension spring (23) is fixed between the sliding latches (24) and the cover plate (22). The substrate mechanism (3) includes a substrate body (31), on which baffles (32) corresponding to the sliding latch (24) are fixed. The baffles (32) are provided with locking grooves (322) that cooperate with the groove locking block (241) and locking plates (323) that cooperate with the wedge-shaped locking block (242). On the side of the back plate body (21) corresponding to the substrate body (31), two sets of symmetrically arranged limiting rods (27) are also fixed. The length of the limiting rods (27) is equal to the relative distance between the two sets of baffles (32). The tension spring (23) has an elastic force to drive the sliding latch (24) closer to the baffle (32). On the side of the baffle (32) away from the substrate body (31), an arc-shaped guide groove (321) is also provided.

2. The inverter structure with good locking effect according to claim 1, characterized in that, The sliding latch (24) is also provided with an eccentric groove (243). The back plate body (21) is symmetrically connected to two sets of rotating shafts (26) on the side away from the inverter (1). The ends of the rotating shafts (26) are all fixed with eccentric blocks (25) that cooperate with the eccentric grooves (243). The middle of the rotating shafts (26) is fixed with an N-type lever arm (261). The backplate mechanism (2) is also provided with an unlocking mechanism (4) for adjusting the deflection angle of the eccentric block (25).

3. The inverter structure with good locking effect according to claim 2, characterized in that, The unlocking mechanism (4) includes a rotating ring (42) rotatably connected to the back plate body (21), and the circumferential side of the rotating ring (42) is provided with an annular corrugated groove (43) that cooperates with the N-type lever arm (261). A rotating handle (41) is also fixed to one side of the rotating ring (42).

4. The inverter structure with good locking effect according to claim 3, characterized in that, When the rotating handle (41) is deflected downwards, the annular corrugated groove (43) drives the N-shaped lever arm (261) to rotate closer to the substrate body (31), and the rotating handle (41) has a built-in counterweight.

5. The inverter structure with good locking effect according to claim 1, characterized in that, The backplate body (21) is provided with heat dissipation fins on the side where it is fixed to the frequency converter (1).

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