Frequency conversion cabinet

By optimizing the structural design of the frequency converter cabinet and setting up components such as air outlets and air inlets, the problems of inconvenient installation and poor heat dissipation have been solved, achieving convenient installation and good heat dissipation. It is suitable for agricultural production and building water supply, drainage, fire protection and other fields.

CN223744229UActive Publication Date: 2025-12-30SHANGHAI THEHAO ELECTRIC POWER TECH
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Patent Information

Application Number
CN202520283333.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-12-30
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

Existing frequency converter cabinets are inconvenient in terms of installation and heat dissipation, making it difficult to meet the needs of agricultural production and building water supply, drainage, fire protection and other fields.

Method used

A frequency converter cabinet was designed with an optimized cabinet structure, including components such as air outlet, air inlet, lifting lugs, circuit breaker, limit switch, frequency converter, terminal mounting plate, grounding bar mounting beam, and inlet/outlet holes, to ensure convenient installation and good heat dissipation.

Benefits of technology

It achieves convenient installation and excellent heat dissipation performance of frequency converter cabinets, and is suitable for agricultural production and building water supply, drainage, fire protection and other fields, reducing equipment wear and motor damage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223744229U_ABST
Patent Text Reader

Abstract

The frequency conversion cabinet provided by the utility model is mainly used for adjusting the working frequency of equipment, reducing energy loss, stably starting the equipment, and reducing the damage of large current generated when the equipment is directly started to a motor. The upper end of the front surface of a cabinet body is provided with an air outlet (2), and the lower end is provided with an air inlet (3); a lifting lug (1) is arranged at the top of the cabinet body; a circuit breaker (7) and a travel switch are arranged side by side on the upper layer in the cabinet body; a frequency converter (4) and a terminal mounting plate (5) are arranged in the middle in the cabinet body; the frequency converter is arranged below the circuit breaker; the terminal mounting plate is arranged below the travel switch; a grounding bar mounting beam is arranged at the lower part in the cabinet body; the bottom of the cabinet body is provided with wire inlet and outlet holes and reactor fixing bolts. Compared with a conventional frequency conversion cabinet, the frequency conversion cabinet has the advantages of being convenient to install, simple and convenient to wire, good in heat dissipation and the like.
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Description

TECHNICAL FIELD

[0001] The patent relates to electrical equipment, in particular a variable frequency cabinet. BACKGROUND

[0002] The variable frequency cabinet is mainly used for adjusting the working frequency of the equipment, reducing energy loss, smoothly starting the equipment, reducing the damage of large current generated by direct starting of the equipment to the motor, and is commonly used for water supply, drainage, fire fighting, etc. of agricultural production and various buildings. Compared with the conventional variable frequency cabinet, the variable frequency cabinet has the advantages of convenient installation, simple wiring, good heat dissipation, etc.

[0003] PATENT CONTENT

[0004] In view of the above problems, the specific technical scheme of the patent is as follows:

[0005] A variable frequency cabinet, characterized in that: the front upper end of the cabinet body is provided with an air outlet (2), and the lower end is provided with an air inlet (3); the top of the cabinet body is provided with an ear (1); the upper layer inside the cabinet body is provided with a circuit breaker (7) and a travel switch (8) side by side; the middle part inside the cabinet body is provided with a frequency converter (4) and a terminal mounting plate (5); the frequency converter is arranged below the circuit breaker; the terminal mounting plate is arranged below the travel switch; the lower part inside the cabinet body is provided with a grounding bar mounting beam (6); and the bottom of the cabinet body is provided with an inlet and outlet hole (9) and a reactor fixing bolt.

[0006] Further, the air inlet (3) is provided with a filter screen.

[0007] Beneficial effects

[0008] The variable frequency cabinet is mainly used for adjusting the working frequency of the equipment, reducing energy loss, smoothly starting the equipment, reducing the damage of large current generated by direct starting of the equipment to the motor, and is commonly used for water supply, drainage, fire fighting, etc. of agricultural production and various buildings. Compared with the conventional variable frequency cabinet, the variable frequency cabinet has the advantages of convenient installation, simple and beautiful wiring, good heat dissipation, etc. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is a front view of the variable frequency cabinet of the patent;

[0010] Fig. 2 It is a front view of the variable frequency cabinet body of the patent after being opened;

[0011] Fig. 3 It is a bottom view of the variable frequency cabinet body of the patent. DETAILED DESCRIPTION

[0012] With reference to the accompanying drawings, the technical solutions in the embodiments of the present patent will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present patent, rather than all the embodiments. Based on the embodiments of the present patent, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present patent.

[0013] The frequency conversion cabinet is mainly used for adjusting the working frequency of equipment, reducing energy loss, smoothly starting the equipment, and reducing the damage of large current generated by direct starting of the equipment to the motor. The frequency conversion cabinet monitors and protects various faults such as overcurrent, overvoltage, overload and short circuit of the motor and frequency conversion, to ensure the safe operation of the equipment. The frequency conversion control cabinet has good compatibility and scalability. It can be connected with various types of motors and control systems. Compared with conventional frequency conversion, the frequency conversion cabinet has the advantages of convenient installation, convenient wiring, good heat dissipation and the like.

[0014] As Figs. 1-3 , the frequency conversion cabinet of the present patent is provided with an air outlet 2 at the upper end of the front face of the cabinet body, and an electric cabinet exhaust fan is arranged at the position of the air outlet. The air outlet is also the installation port of the exhaust fan. The lower end is provided with an air inlet 3; the top of the cabinet body is provided with an ear 1; the upper layer inside the cabinet body is provided with a circuit breaker 7 and a travel switch 8 side by side; the middle part inside the cabinet body is provided with a frequency converter 4 and a terminal mounting plate 5; the frequency converter 4 is arranged below the circuit breaker; the terminal mounting plate is arranged below the travel switch;

[0015] The lower part inside the cabinet body is provided with a grounding bar mounting beam 6;

[0016] The bottom of the cabinet body is provided with an access hole 9 and a reactor fixing bolt.

[0017] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present patent, rather than limit them; although the present patent has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present patent.

Claims

1. A variable frequency cabinet, characterized by: The front of the cabinet is provided with an air outlet (2) at the upper end and an air inlet (3) at the lower end; the top of the cabinet is provided with an ear (1); the upper layer inside the cabinet is provided with a circuit breaker (7) and a travel switch (8) side by side; the middle part of the cabinet is provided with a frequency converter (4) and a terminal mounting plate (5); the frequency converter is arranged below the circuit breaker; the terminal mounting plate is arranged below the travel switch; the lower part of the cabinet is provided with a grounding row mounting beam (6); the bottom of the cabinet is provided with an access hole (9) and a reactor fixing bolt.

2. A frequency converter cabinet according to claim 1, characterized in that The air inlet (3) is provided with a filter screen.