Three-level universal frequency converter with remote debugging function

Abstract

The utility model discloses a three -level general frequency changer with remote debugging has, including three -level general frequency changer, three -level general frequency changer includes casing, clamping slot and operation panel, the clamping slot is set up on casing side edge upper end, and the operation panel is clamped in the clamping slot, the guiding component includes recess, guide ring, opening, damping shaft and baffle, the recess is set up in the inboard lower extreme of clamping slot, and the guide ring is fixed in the recess, and the opening is set up in the lower extreme of guide ring, and the damping shaft one end is fixed in the guide ring one end, and the baffle rotation is connected on the damping shaft, the guiding component still includes the heat dissipation hole, the heat dissipation hole is set up in the inboard recess, and with the inside communication of casing, the guide ring and baffle edge mouth all polish smooth. The utility model discloses the guiding component of setting up, can avoid when separating the installation operation panel and casing, causes cable damage, simultaneously can make the cable orderly arrangement, and the heat dissipation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of three-level frequency converter technology, specifically a three-level universal frequency converter with remote debugging capability. Background Technology

[0002] A three-level inverter is a power conversion device that achieves three output levels (+VDC / 2, 0, -VDC / 2) through clamping circuits. Its core feature is the reduction of harmonic content and improvement of output waveform quality through a unique main topology. Remote commissioning functionality utilizes communication technologies (such as IoT modules, Ethernet, RS485, etc.) to modify inverter parameters, monitor status, and handle faults without on-site operation. Currently, most inverters achieve remote control functionality by connecting to a dedicated 4G controller.

[0003] In existing frequency converters, the control panel cables pass directly through a through-hole to connect to the electronic components inside the housing. If the control panel needs to be installed separately from the frequency converter housing, it must be pulled, which causes the cables to exit directly through the hole. This friction between the cables and the edge of the hole can easily lead to damage to the outer sheath and breakage of the core wires. Furthermore, if the cables accumulate inside the housing, it can result in poor heat dissipation on the cable surface. Therefore, a three-level universal frequency converter with remote commissioning capability is needed to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a three-level universal frequency converter with remote debugging capability, so as to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a three-level universal frequency converter with remote debugging capability, comprising:

[0006] The three-level universal frequency converter includes a housing, a slot and an operation panel. The slot is located on the upper side of the housing, and the operation panel is snapped into the slot.

[0007] The guide assembly includes a groove, a guide ring, an opening, a damping shaft, and a baffle. The groove is located at the lower end of the inner side of the slot, the guide ring is fixed in the groove, the opening is located at the lower end of the guide ring, one end of the damping shaft is fixed to one end of the guide ring, and the baffle is rotatably connected to the damping shaft.

[0008] Furthermore, the guide assembly also includes heat dissipation holes, which are opened inside the groove and communicate with the interior of the housing.

[0009] Furthermore, the edges of the guide ring and the baffle are both polished smooth.

[0010] Furthermore, the three-level universal frequency converter also includes a through hole and a cable. The through hole is opened inside the slot and communicates with the inside of the housing. The cable passes through the through hole, with one end fixed to an electronic component inside the housing and the other end fixed to the operation panel.

[0011] Furthermore, the three-level universal frequency converter also includes a cover plate, which is hinged to the lower end of the side of the housing, and the wiring terminals are fixed to the housing on the inner side of the cover plate.

[0012] Furthermore, it also includes a clamping assembly, which includes a U-shaped bracket, a spring column, and a clamping plate. The U-shaped bracket is fixed to the bottom surface of the groove, the spring column is fixed to both ends of the U-shaped bracket, and the clamping plate is located inside the U-shaped bracket and fixed to the movable end of the spring column.

[0013] Furthermore, the middle part of the cable is wrapped around the outside of the guide ring, and a portion of it is snapped into the clamp.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes a guide assembly to install the electronic components inside the housing and connect the cables to them. The cables are bundled and passed through a through-hole inside the housing. The cables then rotate in the opposite direction from the opening and wind around the guide ring. After winding, a baffle rotates around a damping shaft, blocking the cables. The cable end is pulled out from the opening and connected to the control panel. The control panel is then secured in a slot. If the customer needs to separate the housing from the control panel during installation, they remove the control panel from the slot and pull the cable. The cable causes the baffle to rotate around the damping shaft until the cable is completely pulled out. This design prevents cable damage during separate installation of the control panel and housing and allows for orderly cable arrangement, facilitating heat dissipation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram showing the cable position of this utility model;

[0018] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0019] Figure 3 This is a schematic diagram of the guide ring structure of this utility model;

[0020] Figure 4This is a schematic diagram of the clamping component structure of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 10. Housing; 11. Slot; 12. Control panel; 13. Through hole; 14. Cover plate; 15. Cable; 20. Groove; 21. Heat dissipation hole; 22. Guide ring; 23. Opening; 24. Damping shaft; 25. Baffle; 30. U-shaped bracket; 31. Spring column; 32. Clamping plate. Detailed Implementation

[0023] 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.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please see Figure 1-3 As shown, this utility model is a three-level universal frequency converter with remote debugging capability, comprising:

[0026] The three-level universal frequency converter includes a housing 10, a slot 11 and an operation panel 12. The slot 11 is opened on the upper side of the housing 10, and the operation panel 12 is snapped into the slot 11.

[0027] The three-level universal frequency converter also includes a through hole 13 and a cable 15. The through hole 13 is opened inside the slot 11 and communicates with the inside of the housing 10. The cable 15 passes through the through hole 13, and one end is fixed to an electronic component inside the housing 10, and the other end is fixed to the operation panel 12.

[0028] The three-level universal frequency converter also includes a cover plate 14, which is hinged to the lower side of the housing 10, and the wiring terminals are fixed on the housing 10 on the inner side of the cover plate 14.

[0029] The housing 10 serves as a support and protection unit, and houses the core power devices, control and drive units, protection and buffer devices, power supply and filtering components, heat dissipation and structural components, and auxiliary and safety components. The slot 11 is used to connect the operation panel 12, which is used to set the operating parameters of the frequency converter. The through hole 13 facilitates the passage of the cable 15. The cover plate 14 serves both protective and aesthetic purposes, and the cable 15 is used to connect the operation panel 12 to the control and drive unit inside the housing 10.

[0030] The guide assembly includes a groove 20, a guide ring 22, an opening 23, a damping shaft 24, and a baffle 25. The groove 20 is opened at the lower end of the inner side of the slot 11. The guide ring 22 is fixed in the groove 20. The opening 23 is opened at the lower end of the guide ring 22. One end of the damping shaft 24 is fixed to one end of the guide ring 22. The baffle 25 is rotatably connected to the damping shaft 24.

[0031] The guide assembly also includes a heat dissipation hole 21, which is opened inside the groove 20 and communicates with the inside of the housing 10.

[0032] The edges of both the guide ring 22 and the baffle 25 are polished smooth.

[0033] The middle of cable 15 is wrapped around the outside of guide ring 22;

[0034] The groove 20 is used to store the cable 15, the heat dissipation hole 21 facilitates heat dissipation of the cable 15 and the rear of the operation panel 12, the guide ring 22 is used to wind the cable 15, the opening 23 facilitates the removal of the cable 15, the damping shaft 24 facilitates the rotation of the baffle 25, and can also be positioned at the current position, and the baffle 25 plays a limiting role.

[0035] Working principle:

[0036] Install the electronic components inside the housing 10 and connect the cables 15 on the electronic components. After the cables 15 are bundled, they pass through the through hole 13 inside the housing 10. The cables 15 rotate in the opposite direction from the opening 23 and are wound around the guide ring 22. After winding, the baffle 25 rotates around the damping shaft 24, so that the baffle 25 blocks the cable 15. The end of the cable 15 is pulled out from the opening 23 and connected to the operation panel 12. After connecting the cables 15, the operation panel 12 is locked in the slot 11. When the customer needs to install the housing 10 and the operation panel 12 separately, take out the operation panel 12 from the slot 11 and pull the cables 15. The cables 15 drive the baffle 25 to rotate around the damping shaft 24 to open until the cables 15 are completely pulled out.

[0037] This step avoids damage to the cable 15 when the control panel 12 and the housing 10 are installed separately, and also allows the cable 15 to be arranged in an orderly manner for better heat dissipation.

[0038] Please see Figure 4 As shown, this embodiment, based on the above embodiment, further includes:

[0039] The clamping assembly includes a U-shaped bracket 30, a spring column 31, and a clamping plate 32. The U-shaped bracket 30 is fixed to the bottom surface of the groove 20, the spring column 31 is fixed to both ends of the U-shaped bracket 30, and the clamping plate 32 is located inside the U-shaped bracket 30 and fixed to the movable end of the spring column 31.

[0040] A portion of cable 15 is clipped into clamp 32;

[0041] Working principle:

[0042] With the end of the wound cable 15 positioned at the opening 23, align it with the clamp 32 and press it down, causing the clamp 32 to open. Once the cable 15 is inserted into the clamp 32, the movable end of the spring post 31 on the U-shaped bracket 30 extends, causing the clamp 32 to hold the cable 15 in place.

[0043] This step further secures cable 15, improves stability, and also assists in guiding and limiting movement.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A three-level universal frequency converter with remote debugging capability, characterized in that, include: The three-level universal frequency converter includes a housing (10), a slot (11) and an operation panel (12). The slot (11) is opened on the upper side of the housing (10), and the operation panel (12) is snapped into the slot (11). The guide assembly includes a groove (20), a guide ring (22), an opening (23), a damping shaft (24), and a baffle (25). The groove (20) is opened at the lower end of the inner side of the slot (11). The guide ring (22) is fixed in the groove (20). The opening (23) is opened at the lower end of the guide ring (22). One end of the damping shaft (24) is fixed to one end of the guide ring (22). The baffle (25) is rotatably connected to the damping shaft (24).

2. A three-level universal frequency converter with remote debugging according to claim 1, characterized in that: The guide assembly also includes a heat dissipation hole (21), which is opened inside the groove (20) and communicates with the inside of the housing (10).

3. A three-level universal frequency converter with remote debugging according to claim 1, characterized in that: Both the guide ring (22) and the baffle (25) have smooth, polished edges.

4. A three-level universal frequency converter with remote debugging according to claim 1, characterized in that: The three-level universal frequency converter also includes a through hole (13) and a cable (15). The through hole (13) is opened inside the slot (11) and communicates with the inside of the housing (10). The cable (15) passes through the through hole (13) and one end is fixed to an electronic device inside the housing (10), and the other end is fixed to the operation panel (12).

5. A three-level universal frequency converter with remote debugging according to claim 1, characterized in that: The three-level universal frequency converter also includes a cover plate (14), which is hinged to the lower side of the housing (10), and the wiring terminals are fixed on the housing (10) on the inner side of the cover plate (14).

6. A three-level universal frequency converter with remote debugging according to claim 1, characterized in that: It also includes a clamping assembly, which includes a U-shaped bracket (30), a spring column (31) and a clamping plate (32). The U-shaped bracket (30) is fixed to the bottom surface of the groove (20), the spring column (31) is fixed to both ends of the U-shaped bracket (30), and the clamping plate (32) is located inside the U-shaped bracket (30) and fixed to the movable end of the spring column (31).

7. A three-level universal frequency converter with remote debugging according to claim 4, characterized in that: The middle part of the cable (15) is wrapped around the outside of the guide ring (22).

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