External frequency converter with good protection

Abstract

The utility model discloses an external frequency converter with good protectability, including mounting panel, the outside fixed connection of mounting panel has frequency converter main part, the surface fixed connection of mounting panel has the protective housing, the front surface of protective housing is hinged with the protective door. The utility model discloses the cooperation of mounting panel, frequency converter main part, protective housing and protective door can be wrapped protection to the surface of frequency converter main part to can avoid frequency converter main part and external article direct collision, the cooperation of buffer mouth, upper buffer strip, lower buffer strip, slip mouth, buffer, sliding block, through mouth, mounting mouth, mounting block, screw block and protective column, utilize the both sides protection of protective column to protective housing, can slide in the slip mouth through the protective column drive sliding block, compress buffer to absorb impact force to reduce the influence of external impact force to frequency converter main part, improve the protection performance and life of frequency converter.

Description

Technical Field

[0001] This utility model relates to the field of external frequency converter technology, specifically an external frequency converter with good protection. Background Technology

[0002] External frequency converters can be categorized into AC-AC converters and AC-DC-AC converters based on the energy conversion process. The former directly converts mains frequency power into AC power of the required frequency, while the latter first rectifies the AC power into DC power and then inverts it back into AC power of the required frequency. External frequency converters are widely used in various fields, including industrial production, transportation, and household appliances, especially in applications requiring precise control of motor speed and power.

[0003] A search revealed a protective device for a frequency converter disclosed in Chinese patent application number 202320494330.5. This patent belongs to the field of frequency converter protection technology. It includes a frequency converter body with two fixed plates symmetrically installed at its left and right ends. Two rotating plates are symmetrically installed at both ends of the frequency converter body, in front of the two fixed plates. The rotating plates are rotatably mounted on the frequency converter body. A first protective structure is installed on the fixed plates and rotating plates. The first protective structure consists of a mounting base rod, a first spring, and a baffle. The baffle is installed on the outer wall of the mounting base rod, and the first spring is sleeved on the mounting base rod and simultaneously installed at the front end of the baffle. By installing the rotating plates, fixed plates, first protective structure, second protective structure, and protective plate structure on the frequency converter body, their cooperation can protect the frequency converter body, thereby reducing the probability of damage caused by impact.

[0004] Although the aforementioned patent can protect the main body of the frequency converter, thereby reducing the probability of damage caused by impact, in actual use, the patent can only protect the front of the frequency converter and cannot protect the sides. When foreign objects hit the sides of the frequency converter, it can cause damage to the frequency converter and render it unusable, thus reducing the practicality of the patent to some extent.

[0005] Therefore, the aforementioned patent needs to be modified to effectively prevent the problem that it can only protect the front of the inverter but not the sides, causing damage to the inverter and rendering it unusable when foreign objects hit the sides. Utility Model Content

[0006] To address the problems mentioned in the background section, the present invention aims to provide an external frequency converter with good protection, which solves the problem that only the front of the frequency converter can be protected, but the sides cannot be protected. This prevents damage to the frequency converter and its inability to function properly when foreign objects collide with the sides of the frequency converter.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an external frequency converter with good protection, including a mounting plate, a frequency converter body fixedly connected to the outer side of the mounting plate, a protective shell fixedly connected to the surface of the mounting plate, a protective door hinged to the front of the protective shell, buffer openings symmetrically opened on both sides of the protective shell, an upper buffer strip and a lower buffer strip fixedly connected to the top and bottom of the buffer opening respectively, a plurality of sliding openings opened inside the upper buffer strip and the lower buffer strip, and the plurality of sliding openings are evenly arranged, a buffer with a buffer spring fixedly connected to the inner wall of the sliding opening, a slider fixedly connected to the other end of the buffer, and the slider is slidably connected to the sliding opening, a through opening opened at the top of the upper slider, a plurality of mounting openings opened at the top of the protective shell, and the plurality of mounting openings correspond one-to-one with the plurality of sliding openings, a mounting block slidably connected inside the mounting opening, a threaded block fixedly connected to the top of the lower slider, a protective post provided at the top of the threaded block, and the top of the protective post passing through the through opening and the mounting opening in sequence and being threadedly connected to the mounting block.

[0008] As a preferred embodiment of this utility model, each of the four corners of the top of the protective shell is fixedly connected to an elastic post, and a protective plate is fixedly connected to the top of the elastic post.

[0009] As a preferred embodiment of this invention, the inner wall of the slide is symmetrically provided with limiting grooves, and the surface of the slider is symmetrically fixedly connected with limiting blocks, and the limiting blocks are slidably connected with the limiting grooves.

[0010] As a preferred embodiment of this utility model, the top of the threaded block is provided with a magnetic groove, and the bottom of the protective column is fixedly connected with a magnetic block, and the magnetic block is magnetically connected to the magnetic groove.

[0011] As a preferred embodiment of this utility model, a buffer air cushion is fixedly connected to the inner wall of the mounting port, and the buffer air cushion is fixedly connected to the mounting block.

[0012] As a preferred embodiment of this utility model, the surface of the protective column is covered with a protective pad, and a reinforcing sleeve is fixedly slidably attached to the bottom of the surface of the protective column, and the reinforcing sleeve is threadedly connected to the threaded block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the cooperation of the mounting plate, inverter body, protective shell, and protective door, can wrap and protect the surface of the inverter body, thereby preventing the inverter body from directly colliding with external objects. The cooperation of the buffer port, upper buffer strip, lower buffer strip, sliding port, buffer, slider, through port, mounting port, mounting block, threaded block, and protective column, with the protective column protecting both sides of the protective shell, can drive the slider to slide within the sliding port, compressing the buffer to absorb the impact force, thereby reducing the impact of external impact force on the inverter body and improving the inverter's protection performance and service life.

[0015] 2. This utility model, through the setting of elastic columns and protective plates, can provide top protection for the protective shell. The elastic columns can buffer the impact force from above, reduce the impact of external forces on the main body of the frequency converter, and improve the protection performance. Attached Figure Description

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

[0017] Figure 2 This is a partial cross-sectional perspective view of the structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the buffer, slider, and protective post used in conjunction with the present invention.

[0019] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Mounting plate; 2. Inverter body; 3. Protective housing; 4. Protective door; 5. Buffer port; 6. Upper buffer bar; 7. Lower buffer bar; 8. Sliding port; 9. Buffer; 10. Sliding block; 11. Through port; 12. Mounting port; 13. Mounting block; 14. Threaded block; 15. Protective column; 16. Elastic column; 17. Protective plate; 18. Limiting block; 19. Magnetic block; 20. Buffer air cushion; 21. Protective pad; 22. Reinforcing sleeve. 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] like Figures 1 to 4As shown, this utility model provides an external frequency converter with good protection, including a mounting plate 1. A frequency converter body 2 is fixedly connected to the outer side of the mounting plate 1. A protective shell 3 is fixedly connected to the surface of the mounting plate 1. A protective door 4 is hinged to the front of the protective shell 3. Buffer openings 5 ​​are symmetrically opened on both sides of the protective shell 3. An upper buffer strip 6 and a lower buffer strip 7 are fixedly connected to the top and bottom of the buffer openings 5, respectively. Several sliding slots 8 are opened inside the upper buffer strip 6 and the lower buffer strip 7, and the sliding slots 8 are evenly arranged. A buffer 9 with a buffer spring is fixedly connected to the inner wall of the sliding slot 8. The other end of the buffer 9 is fixedly connected to a slider 10, which is slidably connected to the sliding port 8. A through-hole 11 is provided at the top of the upper slider 10, and several mounting ports 12 are provided at the top of the protective housing 3, each corresponding to one of the sliding ports 8. A mounting block 13 is slidably connected inside the mounting port 12. A threaded block 14 is fixedly connected to the top of the lower slider 10, and a protective post 15 is provided at the top of the threaded block 14. The top of the protective post 15 passes through the through-hole 11 and the mounting port 12 in sequence and is threadedly connected to the mounting block 13. Gaps exist between adjacent protective posts 15, forming heat dissipation channels to facilitate heat dissipation during inverter operation.

[0023] refer to Figure 1 and Figure 2 The protective shell 3 has four corners at the top that are fixedly connected to elastic posts 16, and the top of the elastic posts 16 is fixedly connected to a protective plate 17.

[0024] As a technical optimization of this utility model, the elastic column 16 and the protective plate 17 can provide top protection for the protective shell 3. The elastic column 16 can buffer the impact force from above, reduce the impact of external force on the inverter body 2, and improve the protection performance.

[0025] refer to Figure 2 and Figure 3 The inner wall of the slide 8 is symmetrically provided with limiting grooves, and the surface of the slider 10 is symmetrically fixedly connected with limiting blocks 18, and the limiting blocks 18 are slidably connected with the limiting grooves.

[0026] As a technical optimization of this utility model, by setting the limiting groove and the limiting block 18, the slider 10 can be prevented from shifting or falling out in the sliding opening 8, ensuring that the slider 10 slides stably in the sliding opening 8, so that the buffer structure can play a reliable role.

[0027] refer to Figure 4 The top of the threaded block 14 is provided with a magnetic groove, and the bottom of the protective post 15 is fixedly connected with a magnetic block 19, and the magnetic block 19 is magnetically connected to the magnetic groove.

[0028] As a technical optimization of this utility model, the installation and disassembly of the protective column 15 are facilitated by the setting of the magnetic groove and the magnetic block 19, and the stability of the connection between the protective column 15 and the threaded block 14 can be enhanced to a certain extent.

[0029] refer to Figure 2 and Figure 3 A buffer air cushion 20 is fixedly connected to the inner wall of the mounting port 12, and the buffer air cushion 20 is fixedly connected to the mounting block 13.

[0030] As a technical optimization of this utility model, by setting the buffer air cushion 20, when the mounting block 13 is subjected to external force in the mounting port 12, the buffer air cushion 20 can play a buffering role, reduce the rigid collision between the mounting block 13 and the mounting port 12, and further improve the protective performance of the protective shell 3.

[0031] refer to Figure 3 and Figure 4 The protective post 15 is fitted with a protective pad 21, and a reinforcing sleeve 22 is fixedly slidably attached to the bottom of the surface of the protective post 15. The reinforcing sleeve 22 is threadedly connected to the threaded block 14.

[0032] As a technical optimization of this utility model, the protective pad 21 can increase the buffering effect when the protective column 15 comes into contact with external objects, reducing wear. The reinforcing sleeve 22 can further fix the protective column 15, making it more stable when subjected to external force, thus improving the reliability of the overall protective structure.

[0033] The working principle and usage process of this utility model are as follows: When using this external frequency converter, firstly, install the external frequency converter in the designated position. When the main body 2 of the frequency converter is subjected to external impact, the protective shell 3 can initially provide a blocking effect. The buffer structure composed of the upper buffer strip 6, lower buffer strip 7, and internal buffer 9, slider 10, etc., in the buffer openings 5 ​​on both sides can absorb the impact force by sliding the slider 10 in the sliding opening 8 and squeezing the buffer 9 with buffer spring, thereby protecting the sides of the protective shell 3. The elastic column 16 and protective plate 17 on the top of the protective shell 3 can buffer the external force from above, while the buffer air cushion 20 in the mounting opening 12 and the protective pad 21 on the surface of the protective column 15 can also play a buffering and shock-absorbing role in different parts. This design reduces the impact of external shocks on the inverter body 2, improving its protection performance and service life. Furthermore, the protective column 15 plays a crucial protective role during the operation of this external inverter, frequently subjected to external shocks and being a relatively easily damaged component in the entire protection system. When the protective column 15 is damaged, its magnetic connection with the threaded block 14 and the threaded connection structure of the reinforcing sleeve 22 allow for quick replacement. Compared to traditional integrated protection structures, this design, which allows for individual replacement of the protective column 15, avoids replacing the entire protection assembly due to damage to a single component, significantly reducing maintenance costs. It also allows the inverter body 2 to recover to a good protective state more quickly, ensuring its normal operation.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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. An external frequency converter with good protection, comprising a mounting plate (1), characterized in that: The inverter body (2) is fixedly connected to the outer side of the mounting plate (1). A protective shell (3) is fixedly connected to the surface of the mounting plate (1). A protective door (4) is hinged to the front of the protective shell (3). Buffer openings (5) are symmetrically opened on both sides of the protective shell (3). An upper buffer strip (6) and a lower buffer strip (7) are fixedly connected to the top and bottom of the buffer openings (5), respectively. Several sliding openings (8) are opened inside the upper buffer strip (6) and the lower buffer strip (7), and the several sliding openings (8) are evenly arranged. A buffer (9) with a buffer spring is fixedly connected to the inner wall of the sliding opening (8). The other end of the buffer (9) is fixedly connected to... A slider (10) is slidably connected to a sliding opening (8). A through opening (11) is provided on the top of the upper slider (10). A number of mounting openings (12) are provided on the top of the protective shell (3). The number of mounting openings (12) correspond one-to-one with the number of sliding openings (8). A mounting block (13) is slidably connected inside the mounting opening (12). A threaded block (14) is fixedly connected to the top of the lower slider (10). A protective post (15) is provided on the top of the threaded block (14). The top of the protective post (15) passes through the through opening (11) and the mounting opening (12) in sequence and is threadedly connected to the mounting block (13).

2. The external frequency converter with good protection according to claim 1, characterized in that: The protective shell (3) has four corners at the top fixedly connected with elastic posts (16), and the top of the elastic posts (16) is fixedly connected with a protective plate (17).

3. The external frequency converter with good protection according to claim 1, characterized in that: The inner wall of the slide (8) is symmetrically provided with limiting grooves, and the surface of the slider (10) is symmetrically fixedly connected with limiting blocks (18), and the limiting blocks (18) are slidably connected with the limiting grooves.

4. The external frequency converter with good protection according to claim 1, characterized in that: The top of the threaded block (14) is provided with a magnetic groove, and the bottom of the protective column (15) is fixedly connected with a magnetic block (19), and the magnetic block (19) is magnetically connected to the magnetic groove.

5. The external frequency converter with good protection according to claim 1, characterized in that: The inner wall of the mounting port (12) is fixedly connected to a buffer air cushion (20), and the buffer air cushion (20) is fixedly connected to the mounting block (13).

6. The external frequency converter with good protection according to claim 1, characterized in that: The protective post (15) is covered with a protective pad (21), and a reinforcing sleeve (22) is fixedly slidably attached to the bottom of the surface of the protective post (15), and the reinforcing sleeve (22) is threadedly connected to the threaded block (14).

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