Frequency converter mounting structure

Abstract

A frequency converter mounting structure comprises a frame, the frame is provided with a main mounting position with a through hole and a fan mounting position, the main mounting position and the fan mounting position are detachably provided with shock-proof connecting assemblies, and a frequency converter and the frame are connected into a whole through the shock-proof connecting assemblies for mounting. A fan is detachably arranged on the fan mounting position; the frequency converter is installed through the frame, normal installation of the frequency converter is not affected, dual effects of cooling and shock absorption can be achieved, normal use of the frequency converter is guaranteed, the service life of the frequency converter is prolonged, and the frequency converter is simple in overall structure, low in cost and suitable for large-scale use.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and more specifically to a frequency converter mounting structure. Background Technology

[0002] A frequency converter is a power control device that uses frequency conversion technology and microelectronics to control an AC motor by changing the frequency of the power supply. A frequency converter mainly consists of a rectification unit (AC to DC), a filter, an inverter (DC to AC), a braking unit, a drive unit, a detection unit, and a microprocessor unit. The frequency converter adjusts the voltage and frequency of the output power supply by switching its internal IGBTs, providing the required power voltage according to the actual needs of the motor, thereby achieving energy saving and speed regulation. In addition, frequency converters have many protection functions, such as overcurrent, overvoltage, and overload protection.

[0003] There are two main problems with the installation of frequency converters. The first is the environmental compatibility problem, mainly because high temperature (>40℃) or dusty environment can easily cause the internal electronic components of the frequency converter to age, short circuit or poor heat dissipation. The second is the vibration and mechanical shock problem, mainly because direct exposure of the frequency converter to vibration sources may cause the solder joints to loosen or the components to be damaged. Utility Model Content

[0004] One advantage of this utility model is that it provides a frequency converter installation structure. The installation is carried out through a frame, which does not affect the normal installation of the frequency converter, and can also achieve the dual effects of cooling and vibration isolation, ensuring the normal use of the frequency converter and extending its service life. Moreover, the overall structure is simple and the cost is very low, making it suitable for large-scale use.

[0005] To achieve at least one of the above advantages of this utility model, this utility model provides a frequency converter mounting structure, including a frame, on which a main mounting position with through holes and a fan mounting position are provided. Both the main mounting position and the fan mounting position are provided with shock-absorbing connection components in a detachable manner. The frequency converter and the frame are connected as one unit by the shock-absorbing connection components for installation. A fan is also provided in a detachable manner on the fan mounting position.

[0006] According to one embodiment of the present invention, the vibration damping connection assembly includes a main connection assembly, which includes a main bolt and a main vibration damping pad. Mounting buckles are provided at the four corners of the frequency converter, and through holes are provided in the middle of the mounting buckles. The main bolt passes through the mounting buckles, the main vibration damping pad, the main mounting position on the frame, and the main vibration damping pad in sequence for installation.

[0007] According to one embodiment of the present invention, it also includes an extension sleeve, the extension sleeve having a long through hole in the middle, through which the main bolt passes in sequence via the mounting buckle, the main shock absorber, the main mounting position on the frame, the main shock absorber, the extension sleeve, and the main shock absorber for installation.

[0008] According to one embodiment of the present invention, the shock-absorbing connection assembly further includes a fan connection assembly, which includes a fan bolt and a fan shock-absorbing pad. The fan bolt passes through the fan mounting position, the fan shock-absorbing pad and the fan on the frame in sequence to install the fan onto the frame.

[0009] According to one embodiment of the present invention, the fan directs airflow toward the frequency converter.

[0010] According to one embodiment of the present invention, the frame includes two sets of horizontal bars and vertical bars that are parallel to each other, and the two sets of horizontal bars and vertical bars are connected end to end to form a quadrilateral rectangular frame structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0013] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0014] In the attached diagram: 1. Frame, 2. Fan mounting position, 3. Main mounting position, 4. Inverter, 5. Main bolt, 6. Mounting clip, 7. Main vibration damping pad, 8. Mounting strip, 9. Main nut, 10. Fan bolt, 11. Fan vibration damping pad, 12. Fan, 13. Extension sleeve, 14. Fixing nut, 15. Chassis plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix of this utility model. Figure 1 ~Attached Figure 3 The present invention will be described in more detail below.

[0016] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0017] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0018] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0019] This utility model provides a frequency converter 4 mounting structure, including a frame 1. The frame 1 is provided with a main mounting position 3 with through holes and a fan mounting position 2. Both the main mounting position 3 and the fan mounting position 2 are provided with shock-absorbing connection components in a detachable manner. The frequency converter 4 and the frame 1 are connected as one unit by the shock-absorbing connection components for installation. The fan mounting position 2 is also provided with a fan 12 in a detachable manner.

[0020] According to one embodiment of the present invention, the vibration damping connection assembly includes a main connection assembly, which includes a main bolt 5 and a main vibration damping pad 7. Mounting buckles 6 are provided at the four corners of the frequency converter 4, and through holes are provided in the middle of the mounting buckles 6. The main bolt 5 passes sequentially through the mounting buckles 6, the main vibration damping pad 7, the main mounting position 3 on the frame 1, and the main vibration damping pad 7 for installation. The assembly also includes an extension sleeve 13, which has a long through hole in the middle. The main bolt 5 passes sequentially through the mounting buckles 6, the main vibration damping pad 7, and the main mounting position 3 on the frame 1. The main vibration damping pad 7, the extension sleeve 13, and the main vibration damping pad 7 are installed; the vibration damping connection assembly also includes a fan 12 connection assembly, which includes a fan bolt 10 and a fan vibration damping pad 11. The fan bolt 10 passes through the fan mounting position 2, the fan vibration damping pad 11, and the fan 12 on the frame 1 in sequence to install the fan 12 onto the frame 1; the airflow direction of the fan 12 is towards the frequency converter 4; the frame 1 includes two sets of horizontal bars and vertical bars that are parallel to each other, and the two sets of horizontal bars and vertical bars are connected end to end to form a quadrilateral rectangular frame structure.

[0021] The first embodiment of this utility model is as follows:

[0022] A frequency converter 4 mounting structure includes a frame 1. The frame 1 includes two sets of parallel horizontal bars and vertical bars. The two sets of horizontal bars and vertical bars are connected end to end to form a quadrilateral rectangular frame structure. The frame 1 is provided with a main mounting position 3 with through holes and a fan mounting position 2. The main mounting position 3 is located at the four corner points of the frame 1, and the fan mounting position 2 is located inside the main mounting position 3. The four fan mounting positions 2 form a regular quadrilateral layout for mounting a fan 12.

[0023] In a further embodiment, the fan mounting position 2 can overlap with the main mounting position 3, which means that the separate fan mounting position 2 can be deleted, and only the main mounting position 3 is used to install both the frequency converter 4 and the fan 12.

[0024] In a further embodiment, the fan mounting position 2 may extend into the frame 1 to accommodate the size difference between the fan 12 and the inverter 4.

[0025] Both the main mounting position 3 and the fan mounting position 2 are equipped with detachable shock-absorbing connection components. The frequency converter 4 and the frame 1 are connected as one unit through the shock-absorbing connection components for installation. The shock-absorbing connection components include a main connection component, which includes a main bolt 5 and a main shock-absorbing pad 7. The frequency converter 4 itself is provided with mounting buckles 6 at the four corners, and a through hole is provided in the middle of the mounting buckle 6.

[0026] There are generally two structural forms for the chassis used to install the frequency converter 4. One is that the chassis has a horizontally extending mounting strip 8 suspended inside, and there is a certain distance between the mounting strip 8 and the chassis plate 15. The other is that there is no mounting strip 8 inside the chassis, but the fixing nuts 14 are welded on the chassis plate 15.

[0027] This embodiment is used for the first type of mounting strip 8 chassis. The main bolt 5 passes through the mounting buckle 6, the main shock absorber 7, the main mounting position 3 on the frame 1, the main shock absorber 7 and the mounting strip 8 in sequence for installation. The back of the mounting strip 8 is provided with a main nut 9, which engages with the main bolt 5.

[0028] The fan 12 connection assembly includes a fan bolt 10 and a fan vibration damping pad 11. The fan bolt 10 passes through the fan mounting position 2, the fan vibration damping pad 11 and the fan 12 on the frame 1 in sequence to install the fan 12 onto the frame 1. Due to the setting of the main vibration damping pad 7 and the fan vibration damping pad 11, gaps are left between the fan 12 and the frequency converter 4 and the chassis plate 15 to ensure smooth airflow.

[0029] Example 2 is used for the second type of fixed nut 14 chassis. Compared with Example 1, it also includes an extension sleeve 13. The extension sleeve 13 has a long through hole in the middle. The main bolt 5 passes through the mounting buckle 6, the main shock absorber 7, the main mounting position 3 on the frame 1, the main shock absorber 7, the extension sleeve 13, the main shock absorber 7 and the fixed nut 14 in sequence for installation.

[0030] The fan 12 connection assembly includes a fan bolt 10 and a fan vibration damping pad 11. The fan bolt 10 passes through the fan mounting position 2, the fan vibration damping pad 11 and the fan 12 on the frame 1 in sequence to install the fan 12 onto the frame 1. The extension sleeve 13 keeps the frame 1 away from the chassis plate 15, ensuring that there are gaps between the fan 12 and the frequency converter 4 and the chassis plate 15 to ensure smooth airflow.

[0031] The fan 12 directs airflow toward the inverter 4 to dissipate heat from the inverter 4. The power cord of the fan 12 is connected to the power supply inside the chassis.

[0032] The main shock absorber 7 and the fan shock absorber 11 can be made of rubber, or other materials that can provide shock absorption.

[0033] It should be noted that the terms "first, second, and third" used in this utility model are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0034] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A frequency converter mounting structure, characterized in that: The device includes a frame with a main mounting position and a fan mounting position having through holes. Both the main mounting position and the fan mounting position are detachably equipped with shock-absorbing connection components. The frequency converter and the frame are connected as one unit by the shock-absorbing connection components for installation. The fan mounting position is also detachably equipped with a fan.

2. The inverter mounting structure according to claim 1, characterized in that: The vibration damping connection assembly includes a main connection assembly, which includes a main bolt and a main vibration damping pad. The inverter is provided with mounting buckles at its four corners, and the mounting buckles are provided with through holes in the middle. The main bolt passes through the mounting buckles, the main vibration damping pad, the main mounting position on the frame, and the main vibration damping pad in sequence for installation.

3. The inverter mounting structure according to claim 2, characterized in that: It also includes an extension sleeve, which has a long through hole in the middle. The main bolt passes through the mounting buckle, the main shock absorber, the main mounting position on the frame, the main shock absorber, the extension sleeve, and the main shock absorber in sequence for installation.

4. The inverter mounting structure according to claim 1, characterized in that: The shock-absorbing connection assembly also includes a fan connection assembly, which includes a fan bolt and a fan shock-absorbing pad. The fan bolt passes sequentially through the fan mounting position, the fan shock-absorbing pad, and the fan on the frame to install the fan onto the frame.

5. The inverter mounting structure according to claim 4, characterized in that: The fan directs airflow toward the frequency converter.

6. The inverter mounting structure according to claim 1, characterized in that: The frame includes two sets of parallel horizontal and vertical bars, which are connected end to end to form a quadrilateral rectangular frame structure.

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