An anti-interference assembly for an electric control cabinet

Abstract

This utility model discloses an anti-interference component for an electrical control cabinet, including a cabinet body, hinges, and a cabinet door on the front side of the cabinet body. An inverter is installed inside the cabinet body, and the component further includes an anti-interference component disposed inside the cabinet body for protecting the inverter from interference. The anti-interference component includes a metal cover fixed inside the cabinet body, with the inverter located inside the metal cover. A protective cover is mounted on the front side of the metal cover via a mounting component, and a pressure-reducing component is provided on the protective cover for pressing down the interior of the metal cover. This anti-interference component for an electrical control cabinet, through the cooperation of the anti-interference component, the mounting component, and the pressure-reducing component, provides anti-interference protection for the inverter during operation, facilitating stable use of the inverter.

Description

Technical Field

[0001] This utility model relates to the field of anti-interference technology for electrical control cabinets, specifically an anti-interference component for electrical control cabinets. Background Technology

[0002] When the frequency converter in the electrical control cabinet is working, it controls the speed of the motor by changing the power supply frequency of the motor. It contains complex electronic circuits, such as rectifier circuits and inverter circuits. These circuits generate a lot of harmonic interference during high-frequency switching and are also susceptible to external electromagnetic interference, which affects the stability and accuracy of its output signal. For example, in an electrical control cabinet where multiple frequency converters are working at the same time, without good anti-interference measures, the frequency converters may interfere with each other, resulting in unstable motor operation.

[0003] Therefore, there is an urgent need for an anti-interference component for electrical control cabinets to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an anti-interference component for electrical control cabinets to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-interference component for an electrical control cabinet, comprising a cabinet body, hinges, and a cabinet door on the front side of the cabinet body. The cabinet body is equipped with a frequency converter, and the component also includes an anti-interference component disposed inside the cabinet body for protecting the frequency converter from interference.

[0006] The anti-interference component includes a metal cover fixed inside the cabinet, the frequency converter is located inside the metal cover, a protective cover is installed on the front side of the metal cover by a mounting component, and a pressure-squeezing component for pressing the inside of the metal cover is provided on the protective cover.

[0007] The mounting components are provided in multiple sets, and the multiple sets of mounting components are evenly distributed around the protective cover.

[0008] The mounting assembly includes a mounting bracket fixed to the protective cover, and a clamp is connected to the mounting bracket via a telescopic component. The front side of the clamp is provided with an inclined surface for abutting against the inner wall of the metal cover.

[0009] The telescopic assembly includes multiple sets of sleeves fixed on the mounting frame. A sliding rod is slidably connected to each sleeve. One end of the sliding rod is fixed to a clamping plate. A spring is sleeved on the outside of each sleeve. The two ends of the spring are respectively connected to the clamping plate and the mounting frame.

[0010] One side of the protective cover is fixed to a sealing ring for sealing against the front of the metal cover during installation.

[0011] The pressure-drawing assembly includes a piston cylinder that is fixed to the protective cover, a piston plate that is slidably connected to the piston cylinder, and a transmission assembly for driving the piston plate on the piston cylinder.

[0012] The transmission assembly includes a threaded tube fixed to the end of the piston cylinder, a threaded rod threadedly connected to the threaded tube, one end of the threaded rod being rotatably connected to the piston plate, and the other end of the threaded rod being fixed with a drive pin for driving the threaded rod.

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

[0014] This utility model discloses an anti-interference component for an electrical control cabinet. During the operation of the frequency converter inside the electrical control cabinet, the anti-interference component, the mounting component, and the pressure extraction component work together to protect the frequency converter from interference, thus facilitating the stable use of the frequency converter. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the anti-interference component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the metal cover and frequency converter structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the protective cover and mounting components of this utility model;

[0019] Figure 5 This is a schematic diagram of the pumping and transmission components of this utility model.

[0020] In the diagram: 101, cabinet; 102, cabinet door; 103, frequency converter; 201, metal cover; 202, protective cover; 301, mounting bracket; 302, clamping plate; 303, inclined plane; 401, sleeve; 402, slide rod; 403, spring; 5, sealing ring; 601, piston cylinder; 602, piston plate; 701, threaded pipe; 702, threaded rod; 703, drive pin. 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 seeFigures 1-5 The present invention provides an anti-interference component for an electrical control cabinet, including a cabinet body 101 and a hinge and a cabinet door 102 on the front side of the cabinet body 101. An inverter 103 is installed inside the cabinet body 101, and an anti-interference component is also provided inside the cabinet body 101 for anti-interference protection of the inverter 103.

[0023] The anti-interference component includes a metal cover 201 fixed inside the cabinet 101, the frequency converter 103 is located inside the metal cover 201, and a protective cover 202 is installed on the front side of the metal cover 201 by means of an installation component. The protective cover 202 is provided with a pressure-squeezing component for pressing the inside of the metal cover 201.

[0024] It should be noted that during operation, the inverter 103 inside the electrical control cabinet is protected against interference through the cooperation of anti-interference components, installation components, and pressure extraction components, which facilitates the stable use of the inverter 103.

[0025] The mounting components are set in multiple groups, and the multiple groups of mounting components are evenly distributed around the protective cover 202;

[0026] It should be noted here that multiple sets of installation components are used to ensure the installation effect.

[0027] The mounting assembly includes a mounting bracket 301 fixed to the protective cover 202. A clamping plate 302 is connected to the mounting bracket 301 via a telescopic assembly. The front side of the clamping plate 302 is provided with an inclined surface 303 for abutting against the inner wall of the metal cover 201.

[0028] It should be noted that during the installation and fixing of the protective cover 202 with the metal cover 201, the protective cover 202 is pushed towards the front of the metal cover 201 and abuts against it. During the pushing process, the inclined surface 303 of the clamping plate 302 on each set of mounting components abuts against the inner side of the metal cover 201. During the abutting process, the clamping plate 302 is pushed against the mounting bracket 301 by the force. After the protective cover 202 abuts against the metal cover 201, the abutting pushing action of the telescopic component causes one end of the clamping plate 302 to abut against the inner side of the metal cover 201. Through the abutting and squeezing action, the protective cover 202 is installed and fixed on the front side of the metal cover 201.

[0029] The telescopic assembly includes multiple sets of sleeves 401 fixed on the mounting bracket 301. A slide rod 402 is slidably connected to the sleeve 401. One end of the slide rod 402 is fixed to the clamping plate 302. A spring 403 is sleeved on the outside of the sleeve 401. The two ends of the spring 403 are respectively connected to the clamping plate 302 and the mounting bracket 301.

[0030] It should be noted that: the multiple sets of sleeves 401 and slide rods 402 facilitate the telescopic connection of the clamping plate 302, and the spring 403 facilitates the squeezing and pushing of the clamping plate 302 after the contraction movement.

[0031] One side of the protective cover 202 is fixed to a sealing ring 5, which is used to seal against the front side of the metal cover 201 during installation;

[0032] It should be noted here that the sealing ring 5 improves the sealing effect between the protective cover 202 and the metal cover 201 during installation.

[0033] The pressure-drawing assembly includes a piston cylinder 601 that is fixed to the protective cover 202, a piston plate 602 that is slidably connected to the piston cylinder 601, and a transmission assembly for driving the piston plate 602 on the piston cylinder 601.

[0034] It should be noted that after the protective cover 202 and the metal cover 201 are installed together, a relatively sealed space is formed between the inside of the metal cover 201 and the protective cover 202. Then, through the transmission component, the piston plate 602 is pulled away from the metal cover 201. During the process of pulling the piston plate 602, the space between the metal cover 201 and the protective cover 202 is compressed, so that a negative pressure is generated inside the metal cover 201. Through the negative pressure, the protective cover 202 can be made to fit more tightly against the metal cover 201, reducing electromagnetic leakage caused by gaps, holes, etc., and improving the anti-interference effect.

[0035] The transmission assembly includes a threaded tube 701 fixed to the end of the piston cylinder 601, a threaded rod 702 threadedly engaged with the threaded tube 701, one end of the threaded rod 702 being rotatably connected to the piston plate 602, and a drive pin 703 for driving the threaded rod 702 being fixed to the other end of the threaded rod 702.

[0036] It should be noted here that the threaded rod 702 is driven to rotate by the drive pin 703. During the rotation of the threaded rod 702, the piston plate 602 moves inside the piston cylinder 601 through the mutual meshing transmission between the threaded rod 702 and the threaded tube 701 and the connecting action of the threaded rod 702.

[0037] Working principle: During operation, the inverter 103 inside the electrical control cabinet is installed and fixed inside the metal cover 201. After installation and connection, the protective cover 202 is installed and fixed to the front of the metal cover 201 through the installation components. The protective cover 202 and the metal cover 201 provide anti-interference protection for the inverter 103, which facilitates the stable use of the inverter 103.

[0038] During the installation and fixing of the protective cover 202 and the metal cover 201, the protective cover 202 is pushed towards the front of the metal cover 201 and abuts against it. During the pushing process, the inclined surface 303 of the clamping plate 302 on each set of mounting components abuts against the inner side of the metal cover 201. During the abutting process, the clamping plate 302 is pushed against the mounting bracket 301. After the protective cover 202 abuts against the metal cover 201, the abutting pushing action of the telescopic component causes one end of the clamping plate 302 to abut against the inner side of the metal cover 201. Through the abutting and squeezing action, the protective cover 202 is installed and fixed on the front side of the metal cover 201. The entire installation process of the protective cover 202 and the metal cover 201 is simple to operate and facilitates the quick installation and fixing of the protective cover 202 and the metal cover 201.

[0039] After the protective cover 202 is installed against the metal cover 201, a relatively sealed space is formed between the inside of the metal cover 201 and the protective cover 202. Then, through the transmission component, the piston plate 602 is pulled away from the metal cover 201. During the process of pulling the piston plate 602, the space between the metal cover 201 and the protective cover 202 is compressed, so that a negative pressure is generated inside the metal cover 201. Through the negative pressure, the protective cover 202 can be made to fit more tightly against the metal cover 201, reducing electromagnetic leakage caused by gaps, holes, etc., and improving the anti-interference effect.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An anti-interference component for an electrical control cabinet, comprising: The cabinet (101) and the hinges and the cabinet door (102) on the front side of the cabinet (101) are provided. The cabinet (101) is equipped with a frequency converter (103). Its characteristic is that it further includes: Anti-interference components installed inside the cabinet (101) for protecting the inverter (103) from interference; The anti-interference component includes a metal cover (201) fixed inside the cabinet (101), the frequency converter (103) is located inside the metal cover (201), and a protective cover (202) is installed on the front side of the metal cover (201) by a mounting component. The protective cover (202) is provided with a pressure-squeezing component for pressing the inside of the metal cover (201).

2. The anti-interference component for an electrical control cabinet according to claim 1, characterized in that: The mounting components are provided in multiple sets, and the multiple sets of mounting components are evenly distributed around the protective cover (202).

3. The anti-interference component for an electrical control cabinet according to claim 2, characterized in that: The mounting assembly includes a mounting bracket (301) fixed to the protective cover (202), and a clamp (302) is connected to the mounting bracket (301) via a telescopic assembly. The front side of the clamp (302) is provided with an inclined surface (303) for abutting against the inner wall of the metal cover (201) for transmission.

4. The anti-interference component for an electrical control cabinet according to claim 3, characterized in that: The telescopic assembly includes multiple sets of sleeves (401) fixed on the mounting bracket (301). A slide rod (402) is slidably connected to each sleeve (401). One end of the slide rod (402) is fixed to the clamping plate (302). A spring (403) is sleeved on the outside of the sleeve (401). Both ends of the spring (403) are connected to the clamping plate (302) and the mounting bracket (301) respectively.

5. The anti-interference component for an electrical control cabinet according to claim 1, characterized in that: One side of the protective cover (202) is fixed to a sealing ring (5) for sealing against the front side of the metal cover (201) during installation.

6. The anti-interference component for an electrical control cabinet according to claim 1, characterized in that: The pressure-drawing assembly includes a piston cylinder (601) that is fixed to the protective cover (202), a piston plate (602) that is slidably connected to the piston cylinder (601), and a transmission assembly for driving the piston plate (602) is provided on the piston cylinder (601).

7. The anti-interference component for an electrical control cabinet according to claim 6, characterized in that: The transmission assembly includes a threaded tube (701) fixed to the end of the piston cylinder (601), and a threaded rod (702) is threadedly connected to the threaded tube (701). One end of the threaded rod (702) is rotatably connected to the piston plate (602), and the other end of the threaded rod (702) is fixed with a drive pin (703) for driving the threaded rod (702).

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