Dismounting and fixing device for frequency converter module

Abstract

The utility model relates to a frequency converter module dismounting fixing device, which comprises a frequency converter body, a back plate and an adapter plate, the back plate is fixedly arranged on the back surface of a frequency converter, at least three convex columns are formed on the back plate, bayonets are formed on the lower surfaces of the inner sides of the convex columns, the thickness of the bayonets is equal to the thickness of the adapter plate, and at least three strip-shaped holes are formed on the adapter plate. The adapter plate is detachably connected with the cross beams on the control cabinet, the adapter plate is installed between the cross beams, the back plate is installed on the back face of the frequency converter body, and the convex columns on the back plate and the strip-shaped holes in the adapter plate are correspondingly hung and buckled to achieve fixation. The side plates and the back plate of the control cabinet do not need to be detached no matter the control cabinet is installed or detached, and installation and detachment can be achieved through the simple hanging buckles.

Description

Technical Field

[0001] This utility model belongs to the technical field of frequency converter accessories, specifically relating to a device for disassembling and fixing frequency converter modules. Background Technology

[0002] Currently, inverter modules are typically installed by mounting a crossbeam in the control cabinet and then securing them using either a sliding rail clamp and bolts, or by directly tightening the bolts. The choice between these two methods depends on the weight of the inverter module. After installing the inverter module, the side and back panels of the control cabinet are installed to enclose the cabinet. Both of these fixing methods require the removal of the control cabinet's side and back panels before the inverter module can be removed. To facilitate easier installation and removal of the inverter module within the control cabinet, this solution was developed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a disassembly and fixing device for frequency converter modules, which can be disassembled and assembled by means of hanging.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a disassembly and fixing device for a frequency converter module, including a frequency converter body, a back plate and an adapter plate. The back plate is fixedly installed on the back of the frequency converter. At least three protrusions are formed on the back plate. A latch is formed on the lower surface of the inner side of the protrusion. The thickness of the latch is equal to the thickness of the adapter plate. At least three strip holes are formed on the adapter plate. The protrusion passes through the strip holes and the latch is locked with the lower end of the strip hole. The adapter plate is detachably connected to the upper crossbeam of the control cabinet.

[0005] Furthermore, the number of the strip holes is four and arranged in a matrix, and the number of the protrusions is four and arranged in a matrix.

[0006] Furthermore, the upper surface of the bayonet has a downwardly extending arc-shaped protrusion, the two ends of the vertical cross-section projection of the strip hole are semi-circular, the arc-shaped protrusion is adapted to the lower end of the strip hole, and the height of the arc-shaped protrusion is less than the depth of the bayonet.

[0007] Furthermore, the height of the arc-shaped protrusion is less than or equal to half the depth of the bayonet.

[0008] Furthermore, the adapter plate has connecting plates formed at its upper and lower ends, the length of the connecting plates is greater than the width of the adapter plate, and the connecting plates are provided with multiple connecting holes.

[0009] Furthermore, the adapter plate has a T-shaped protrusion on its surface, and a positioning notch is formed on the back plate. The positioning notch and the T-shaped protrusion are adapted to each other. A T-shaped latch is formed on the upper surface of the positioning notch, and the T-shaped latch is adapted to the T-shaped protrusion.

[0010] Furthermore, the number of T-shaped protrusions is two, and they are spaced apart vertically.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model uses an adapter plate installed between the crossbeams and a back plate installed on the back of the inverter body. The back plate is fixed by corresponding hooks through the protrusions on the back plate and the strip holes on the adapter plate. With this design, it is not necessary to remove the side and back plates of the control cabinet for installation or disassembly. Installation and disassembly can be achieved by simply using hooks. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the split structure of a frequency converter module assembly and disassembly fixing device according to the present invention;

[0014] Figure 2 This is a schematic diagram of the split structure of this utility model from another direction;

[0015] Figure 3 This is a partially enlarged structural diagram of the protruding column position in this utility model;

[0016] Figure 4 This is a front view of the structure of the adapter plate connected to the crossbeam in this utility model.

[0017] The markings in the diagram are: 1. Inverter body; 2. Back plate; 21. Protrusion; 211. Arc-shaped protrusion; 22. Positioning notch; 221. T-shaped bayonet; 3. Adapter plate; 31. Strip hole; 32. Connecting plate; 321. Connecting hole; 33. T-shaped protrusion. Detailed Implementation

[0018] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0019] like Figures 1-4 As shown, this embodiment provides a device for disassembling and fixing a frequency converter module, including a frequency converter body 1, a back plate 2, and an adapter plate 3.

[0020] The back plate 2 is fixedly installed on the back of the frequency converter. The back plate 2 and the frequency converter body 1 can be integrally formed or set as separate and detachable parts. Four matrix-arranged protrusions 21 are formed on the back plate 2, and a snap-fit ​​is formed on the lower surface of the inner side of the protrusion 21.

[0021] The adapter plate 3 has four strip holes 31, which correspond to four protrusions 21 respectively. The thickness of the latch is equal to the thickness of the adapter plate 3. The protrusions 21 are inserted into the strip holes 31 and then moved downwards so that the latch is locked at the lower end of the strip holes 31 to achieve fixation.

[0022] The adapter plate 3 is detachably connected to the crossbeam on the control cabinet. Specifically, connecting plates 32 are formed at both the upper and lower ends of the adapter plate 3. The length of the connecting plates 32 is greater than the width of the adapter plate 3. Multiple connecting holes 321 are provided on the connecting plates 321, allowing for detachable connection to the crossbeam on the control cabinet via screws passing through the connecting holes 321. Figure 4 As shown.

[0023] Preferably, the upper surface of the bayonet has a downwardly extending arc-shaped protrusion 211, and the two ends of the vertical cross-section projection of the strip hole 31 are semi-circular. The arc-shaped protrusion 211 is adapted to the lower end of the strip hole 31. The height of the arc-shaped protrusion 211 is less than the depth of the bayonet, which increases the contact area between the bayonet position of the protrusion 21 and the strip hole 31, increases the stress surface, and reduces stress concentration.

[0024] Because the thickness between the two sides of the bayonet and the thickness of the adapter plate 3 cannot be made completely equal during processing, a tolerance of 2mm is generally reserved. Therefore, after the inverter body 1 is installed, the inverter body 1 may shake during operation, causing wear at the contact point between the protrusion 21 and the strip hole 31. Such long-term relative shaking and friction may cause the hook to come off.

[0025] Therefore, the adapter plate 3 of this solution is provided with two T-shaped protrusions 33 spaced vertically apart. A positioning notch 22 is formed on the back plate 2, which is compatible with the T-shaped protrusions 33. A T-shaped latch 221 is formed on the upper surface of the positioning notch 22, which is compatible with the T-shaped protrusions 33. When the inverter body 1 is hooked up, the protrusion 21 extends into the upper end of the slot 31, and the T-shaped protrusion 33 extends into the positioning notch 22. When the protrusion 21 moves downwards, the latch... The T-shaped protrusion 33 is inserted into the lower end of the strip hole 31 and into the T-shaped slot 221, achieving double fixation and restricting the horizontal movement of the inverter body 1. Moreover, since the inverter body 1 itself has a certain weight, it is difficult for the T-shaped protrusion 33 to move out of the T-shaped slot 221 during daily operation vibration. Even if the slot on the protrusion 21 and the strip hole 31 wear to a certain extent, the stability of the inverter body 1 hook can be guaranteed.

[0026] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A device for disassembling and fixing a frequency converter module, characterized in that: Including frequency converter body, backplate and adapter plate, the backplate is fixedly arranged on the back of the frequency converter, at least three convex columns are formed on the backplate, the inner side of the convex column is formed with a bayonet, the thickness of the bayonet is equal to the thickness of the adapter plate, at least three strip holes are formed on the adapter plate, the convex column passes through the strip hole and the bayonet is stopped with the lower end of the strip hole, the adapter plate is detachably connected with the upper horizontal beam of the control cabinet.

2. The device according to claim 1, wherein: The number of strip holes is four and is arranged in a matrix, and the number of convex columns is four and is arranged in a matrix.

3. The device of claim 1, wherein: The upper surface of the bayonet is formed with an arc-shaped protrusion extending downward, the vertical section projection of the strip hole is semicircular at both ends, the arc-shaped protrusion is matched with the lower end of the strip hole, and the height of the arc-shaped protrusion is less than the depth of the bayonet.

4. The device of claim 3, wherein: The height of the arc-shaped protrusion is less than or equal to one half of the depth of the bayonet.

5. The device of claim 1, wherein: The upper and lower ends of the adapter plate are formed with connecting plates, the length of the connecting plate is greater than the width of the adapter plate, and a plurality of connecting holes are arranged on the connecting plate.

6. The device of claim 1, wherein: A T-shaped protrusion is arranged on the surface of the adapter plate, a positioning notch is formed on the backplate, the positioning notch and the T-shaped protrusion are matched, a T-shaped bayonet is formed on the upper surface of the positioning notch, and the T-shaped bayonet is matched with the T-shaped protrusion.

7. The device of claim 6, wherein: The number of T-shaped protrusions is two and is arranged in an upper and lower interval.

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