Stable mounting structure of frequency converter

Abstract

The utility model discloses a stable mounting structure of a frequency converter, which relates to the field of mounting structures and comprises a mounting plate, a left mounting base and a right mounting base are sequentially arranged at the top of the mounting plate, and a left fixing block and a right fixing block are respectively sleeved in the left mounting base and the right mounting base. A frequency converter is arranged between the left fixing block and the right fixing block in a sleeved mode, a left inner cavity and a right inner cavity are formed in the left fixing block and the right fixing block respectively, springs are arranged at the bottoms of the left inner cavity and the right inner cavity, and limiting blocks are fixedly installed at the other ends of the springs. According to the stable mounting structure of the frequency converter, the problem that an existing stable mounting structure of the frequency converter is inconvenient to use is solved, the left fixing block and the right fixing block are sequentially arranged in the placing inner cavities formed in the left mounting base and the right mounting base in a sleeved mode, and then the frequency converter is arranged between the left fixing block and the right fixing block in a sleeved mode; and the frequency converter, the left fixing block and the right fixing block can be fixed on the mounting plate.

Description

Technical Field

[0001] The utility model relates to the field of installation structures, in particular to a stable installation structure for a frequency converter. Background Art

[0002] A variable frequency drive (VFD) is a power electronic device primarily used to control the speed of AC motors. It achieves stepless speed regulation of the motor by varying the power supply voltage and frequency to meet the demands of varying operating conditions. The VFD's core operating principle is to convert AC power into DC power through a rectifier, and then convert the DC power into AC power with controllable frequency and voltage through an inverter to supply the motor. Therefore, during installation, the VFD is typically installed together with other current components, such as the inverter. To ensure the normal operation of these components, the VFD requires a stable mounting structure to ensure stability during use.

[0003] An existing stable installation structure for a frequency converter is provided by arranging four sets of reset components on four sets of inner walls of a placement box, installing limit plates at the ends of the reset components, and then fixing the placement box. By placing the frequency converter between the four sets of limit plates, the frequency converter can be placed in the specified position, and the reset components are used to maintain the stable installation of the frequency converter, thereby achieving the use effect of the frequency converter.

[0004] However, for the existing stable installation structure of the inverter, the inverter is limited by the reset component and the limit plate. If the inverter slides, the restraining force provided by the reset component and the limit plate alone cannot maintain the stability of the inverter, and the use requirements of the inverter cannot be met. In addition, placing the inverter in the placement box will cause certain obstacles to the heat dissipation of the inverter, which is not conducive to the normal use of the inverter. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a stable installation structure for a frequency converter, so as to solve the technical problem that the existing stable installation structure for a frequency converter is inconvenient to use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stable mounting structure of an inverter, comprising a mounting plate, a left mounting base and a right mounting base being sequentially arranged on the top of the mounting plate, a left fixing block and a right fixing block being respectively sleeved in the left mounting base and the right mounting base, an inverter being sleeved between the left fixing block and the right fixing block, a left inner cavity and a right inner cavity being respectively opened in the left fixing block and the right fixing block, a spring being arranged at the bottom of the left inner cavity and the right inner cavity, a limit block being fixedly installed on the other end of the spring, and a limit assembly being arranged at the bottom of the limit block.

[0007] By adopting the above technical solution, the problem of the inconvenience of using the existing stable mounting structure of the inverter is solved. The left fixing block and the right fixing block are sequentially sleeved in the placement inner cavity opened inside the left mounting base and the right mounting base, and then the inverter is sleeved between the left fixing block and the right fixing block, so that the inverter, the left fixing block and the right fixing block can be fixed on the mounting plate. The protrusions set on one side of the left fixing block and the right fixing block can limit the left and right and up and down movement of the inverter to prevent the inverter from sliding. When the inverter is sleeved between the left fixing block and the right fixing block, one end of the inverter will contact the limit block first and squeeze the limit block inward. When the inverter is pushed to the specified position, the limit block does not contact the inverter. The spring at one end of the limit block will cause the limit block to pop out and contact one end of the inverter to prevent the inverter from slipping between the left fixing block and the right fixing block, thereby affecting the normal use of the inverter.

[0008] The utility model is further configured such that the limiting assembly includes through holes opened on one side of the left fixed block and the right fixed block, a pull rod is fixedly installed on the bottom of the limiting block, an annular protrusion is provided at one end of the pull rod, the annular protrusion is sleeved inside one end of the fixed rod, and protrusions are provided in the middle and end of the fixed rod.

[0009] By adopting the above technical solution and providing a limit assembly, when the frequency converter needs to be replaced or disassembled, the limit imposed by the limit block on the frequency converter can be quickly released, thereby removing the limit block.

[0010] The present invention is further configured such that the cross sections of the protrusions provided in the middle and at the ends of the fixing rod are both rectangular, and the protrusions provided in the middle of the fixing rod and the protrusions provided at the ends of the fixing rod are arranged alternately.

[0011] By adopting the above technical solution, by making the cross-sections of the protrusions provided in the middle and at the ends of the fixing rod rectangular, the protrusion provided in the middle of the fixing rod can be sleeved into the through holes opened on one side of the left fixing block and the right fixing block. By staggering the protrusions provided in the middle of the fixing rod and the protrusions provided at the ends of the fixing rod, when the protrusions provided at the ends of the fixing rod are rotated, the protrusions provided in the middle of the fixing rod can contact the side surfaces of the left fixing block and the right fixing block, thereby achieving a locking effect on the fixing rod.

[0012] The present invention is further configured such that a placement cavity is provided inside the left mounting base and the right mounting base, and a limiting protrusion is provided at one end of the left fixing block and the right fixing block, and the limiting protrusion is the same size as the placement cavity.

[0013] By adopting the above technical solution, a placement cavity is opened inside the left mounting base and the right mounting base, and a limiting protrusion is set at one end of the left fixed block and the right fixed block, and the limiting protrusion is the same size as the placement cavity, so that the limiting protrusion set at one end of the left fixed block and the right fixed block can be sleeved in the placement cavity opened inside the left mounting base and the right mounting base, thereby achieving a fixing effect on the left fixed block and the right fixed block, facilitating the placement of the inverter.

[0014] The present invention is further configured such that a limiting plate is provided at the bottom of the limiting block, the limiting plate is sleeved in the left inner cavity and the right inner cavity, and an inclined surface is provided at one end of the limiting block.

[0015] By adopting the above technical solution, a limiting plate is provided at the bottom of the limiting block, and the limiting plate is sleeved in the left inner cavity and the right inner cavity, so that a limiting effect can be exerted on the limiting block to prevent the limiting block from slipping, thereby affecting the normal use of the device. An inclined surface is provided at one end of the limiting block, so that the limiting block can be better accommodated in the left inner cavity and the right inner cavity when pushed by the inverter, and does not hinder the push of the inverter.

[0016] The present invention is further configured such that a plurality of groups of protrusions are provided on one side of the left fixing block and the right fixing block, and the cross section of the protrusions is semicircular, and a through groove is provided on the side of the frequency converter.

[0017] By adopting the above technical solution, by arranging multiple groups of protrusions with semicircular cross-sections on one side of the left fixed block and the right fixed block, and opening a through groove on the side of the inverter, the protrusions arranged on one side of the left fixed block and the right fixed block can be mounted in the through groove opened on the side of the inverter, so that when the inverter is mounted between the left fixed block and the right fixed block, it can play a limiting role on the inverter, preventing the inverter from sliding, thereby affecting the normal use of the device.

[0018] The utility model is further configured such that the through holes opened on one side of the left fixing block and the right fixing block are circular, and rectangular grooves are provided on both sides of the through holes, and a protrusion with a rectangular cross section provided in the middle of the fixing rod is sleeved in the rectangular groove.

[0019] By adopting the above technical solution, the through holes opened on one side of the left fixed block and the right fixed block are circular, and rectangular grooves are provided on both sides of the through holes, and a protrusion with a rectangular cross section provided in the middle part of the fixing rod is sleeved in the rectangular groove, so that the protrusion provided in the middle part of the fixing rod can have a certain sealing effect on the through holes opened on one side of the left fixed block and the right fixed block, thereby preventing external substances from entering the left inner cavity and the right inner cavity.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. The utility model solves the problem of inconvenience in using the existing stable installation structure of the inverter by providing a mounting plate, a left mounting base, a right mounting base, a left fixing block, a right fixing block, a left inner cavity, a right inner cavity, a spring, a limit block, a pull rod and a fixing rod. The left fixing block and the right fixing block are sequentially sleeved in the placement inner cavity opened in the left mounting base and the right mounting base, and then the inverter is sleeved between the left fixing block and the right fixing block, so that the inverter, the left fixing block and the right fixing block can be fixed on the mounting plate. The protrusions set on one side of the block and the right fixed block can limit the left and right and up and down movements of the inverter to prevent the inverter from sliding. When the inverter is installed between the left fixed block and the right fixed block, one end of the inverter will contact the limit block first and squeeze the limit block inward. When the inverter is pushed to the specified position, the limit block does not contact the inverter. The spring at one end of the limit block will make the limit block pop out and contact one end of the inverter to prevent the inverter from slipping between the left fixed block and the right fixed block, thereby affecting the normal use of the inverter.

[0022] 2. The utility model provides a through hole on one side of the left mounting base and the right mounting base, and fixes a pull rod on the bottom of the limit block, and provides an annular protrusion at one end of the pull rod, which is sleeved inside one end of the fixing rod, and provides protrusions at the middle and end of the fixing rod, and the protrusions provided in the middle of the fixing rod and the protrusions provided at the end of the fixing rod are staggered. When the inverter needs to be removed from between the left fixing block and the right fixing block, the fixing rod is pulled to make the protrusion provided in the middle of the fixing rod disengage from the through hole provided on one side of the left mounting base and the right mounting base, and then the fixing rod is rotated to make the protrusion provided in the middle of the fixing rod contact the side edges of the left mounting base and the right mounting base, so that the fixing rod can be stuck, and the constraint of the limit block on the inverter is released, which facilitates the removal of the inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a first structural diagram of the utility model;

[0024] Figure 2 This is a second structural diagram of the present utility model;

[0025] Figure 3 It is a partial enlarged view of the utility model;

[0026] Figure 4 It is a cross-sectional view of the utility model;

[0027] Figure 5 This is a schematic diagram of the inverter connection of the utility model.

[0028] In the figure: 1. Mounting plate; 2. Left mounting base; 21. Right mounting base; 3. Left fixing block; 31. Right fixing block; 4. Left inner cavity; 41. Right inner cavity; 5. Spring; 6. Limit block; 61. Pull rod; 7. Fixing rod; 8. Inverter. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] The following describes an embodiment of the present invention based on its overall structure.

[0031] A stable installation structure for a frequency converter, such as Figure 1 - Figure 5 As shown, it includes a mounting plate 1, and a left mounting base 2 and a right mounting base 21 are sequentially arranged on the top of the mounting plate 1, and a left fixing block 3 and a right fixing block 31 are respectively sleeved in the left mounting base 2 and the right mounting base 21, and an inverter 8 is sleeved between the left fixing block 3 and the right fixing block 31, and a left inner cavity 4 and a right inner cavity 41 are respectively opened in the left fixing block 3 and the right fixing block 31, and a spring 5 is provided at the bottom of the left inner cavity 4 and the right inner cavity 41, and the other end of the spring 5 is fixedly installed with a limit block 6, and a limit assembly is provided at the bottom of the limit block 6.

[0032] See also Figure 1 and Figure 3 The limit assembly includes through holes opened on one side of the left fixed block 3 and the right fixed block 31. A pull rod 61 is fixedly installed on the bottom of the limit block 6. An annular protrusion is provided at one end of the pull rod 61. The annular protrusion is sleeved inside one end of the fixed rod 7. The middle and end of the fixed rod 7 are provided with protrusions. By setting the limit assembly, when the inverter 8 needs to be replaced or disassembled, the limit of the limit block 6 on the inverter 8 can be quickly released, so that the limit block 6 can be taken out.

[0033] See also Figure 3 The cross-sections of the protrusions provided in the middle and at the ends of the fixing rod 7 are both rectangular, and the protrusions provided in the middle of the fixing rod 7 and the protrusions provided at the ends of the fixing rod 7 are staggered. By making the cross-sections of the protrusions provided in the middle and at the ends of the fixing rod 7 both rectangular, the protrusion provided in the middle of the fixing rod 7 can be sleeved in the through holes opened on one side of the left fixing block 3 and the right fixing block 31. By staggering the protrusions provided in the middle of the fixing rod 7 and the protrusions provided at the ends of the fixing rod 7, when the protrusions provided at the ends of the fixing rod 7 are rotated, the protrusions provided in the middle of the fixing rod 7 can be made to contact the side surfaces of the left fixing block 3 and the right fixing block 31, thereby playing a snapping role on the fixing rod 7.

[0034] See also Figure 2 and Figure 5 , a placement cavity is opened inside the left mounting base 2 and the right mounting base 21, and a limiting protrusion is set at one end of the left fixing block 3 and the right fixing block 31, and the limiting protrusion is the same size as the placement cavity. By opening a placement cavity inside the left mounting base 2 and the right mounting base 21, and setting a limiting protrusion at one end of the left fixing block 3 and the right fixing block 31, and the limiting protrusion is the same size as the placement cavity, the limiting protrusion set at one end of the left fixing block 3 and the right fixing block 31 can be sleeved in the placement cavity opened inside the left mounting base 2 and the right mounting base 21, thereby having a fixing effect on the left fixing block 3 and the right fixing block 31, which is convenient for the placement of the inverter 8.

[0035] See also Figure 1 and Figure 4 A limiting plate is provided at the bottom of the limit block 6, and the limiting plate is sleeved in the left inner cavity 4 and the right inner cavity 41. An inclined surface is provided at one end of the limit block 6. By providing a limiting plate at the bottom of the limit block 6 and sleeved in the left inner cavity 4 and the right inner cavity 41, a limiting effect can be achieved on the limit block 6 to prevent the limit block 6 from slipping, thereby affecting the normal use of the device. An inclined surface is provided at one end of the limit block 6, so that the limit block 6 can be better accommodated in the left inner cavity 4 and the right inner cavity 41 when pushed by the inverter 8, and does not hinder the push of the inverter 8.

[0036] See also Figure 2 and Figure 5 , multiple groups of protrusions are provided on one side of the left fixed block 3 and the right fixed block 31, and the cross-section of the protrusions is semicircular, and a through groove is provided on the side of the inverter 8. By providing multiple groups of protrusions with semicircular cross-sections on one side of the left fixed block 3 and the right fixed block 31, and opening a through groove on the side of the inverter 8, the protrusions provided on one side of the left fixed block 3 and the right fixed block 31 can be sleeved in the through groove opened on the side of the inverter 8, so that when the inverter 8 is sleeved between the left fixed block 3 and the right fixed block 31, it can play a limiting role on the inverter 8, thereby preventing the inverter 8 from sliding, thereby affecting the normal use of the device.

[0037] See also Figure 2 The through holes opened on one side of the left fixing block 3 and the right fixing block 31 are circular, and rectangular grooves are provided on both sides of the through holes, and a convex block with a rectangular cross section set in the middle of the fixing rod 7 is sleeved in the rectangular groove. The through holes opened on one side of the left fixing block 3 and the right fixing block 31 are circular, and rectangular grooves are provided on both sides of the through holes, and a convex block with a rectangular cross section set in the middle part of the fixing rod 7 is sleeved in the rectangular groove, so that the convex block set in the middle part of the fixing rod 7 can have a certain sealing effect on the through holes opened on one side of the left fixing block 3 and the right fixing block 31, thereby preventing external substances from entering the left inner cavity 4 and the right inner cavity 41.

[0038] The working principle of the present invention is as follows: before installing the frequency converter 8, it is necessary to first sleeve the limiting protrusions at one end of the left fixing block 3 and the right fixing block 31 into the placement inner cavity set inside the left mounting base 2 and the right mounting base 21 to limit the front and rear and up and down movement of the left fixing block 3 and the right fixing block 31, and then sleeve the frequency converter 8 between the left fixing block 3 and the right fixing block 31. The cross-section of one side of the left fixing block 3 and the right fixing block 31 is a semicircular protrusion that needs to be sleeved into the passage opened on the side of the frequency converter 8. In the slot, when the inverter 8 is pushed into the left fixed block 3 and the right fixed block 31, one end of the inverter 8 will first contact the limit block 6 set inside the left fixed block 3 and the right fixed block 31 respectively. The limit block 6 is squeezed downward by the inclined surface set at one end, which does not hinder the pushing of the inverter 8. When the inverter 8 is pushed to the specified position, the inverter 8 does not contact the limit block 6. The limit block 6 rebounds to its original position through the spring 5 set at the bottom and contacts one end of the inverter 8, thereby pressing the inverter 8. It plays a limiting role to prevent the inverter 8 from sliding off between the left fixing block 3 and the right fixing block 31, thereby causing damage to the inverter 8. By setting the semicircular protrusions on one side of the left fixing block 3 and the right fixing block 31 in the through grooves opened on the side of the inverter 8, the movement of the inverter 8 can be limited. It cooperates with the limiting block 6 that pops up after the inverter 8 is placed in the specified position, so that the inverter 8 and the mounting plate 1 can be fixed together, thereby achieving the stability of the inverter 8. Installation. If the inverter 8 needs to be removed, pull the fixing rod 7 so that the protrusion set in the middle of the fixing rod 7 disengages from the through hole opened on one side of the left mounting base 2 and the right mounting base 21, and then rotate the fixing rod 7 so that the protrusion set in the middle of the fixing rod 7 contacts the side of the left mounting base 2 and the right mounting base 21, so that the fixing rod 7 can be stuck, and the constraint of the limit block 6 on the inverter 8 is released, so that the inverter 8 can be taken out from between the left fixing block and the right fixing block, which is convenient for installation and disassembly of the inverter 8.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A stable installation structure for a frequency converter, comprising a mounting plate (1), characterized in that: A left mounting base (2) and a right mounting base (21) are sequentially provided on the top of the mounting plate (1); a left fixing block (3) and a right fixing block (31) are respectively sleeved in the left mounting base (2) and the right mounting base (21); a frequency converter (8) is sleeved between the left fixing block (3) and the right fixing block (31); a left inner cavity (4) and a right inner cavity (41) are respectively opened in the left fixing block (3) and the right fixing block (31); a spring (5) is provided at the bottom of the left inner cavity (4) and the right inner cavity (41); a limit block (6) is fixedly installed on the other end of the spring (5); and a limit assembly is provided at the bottom of the limit block (6).

2. The stable installation structure of a frequency converter according to claim 1, characterized in that: The limiting assembly includes through holes opened on one side of the left fixed block (3) and the right fixed block (31); a pull rod (61) is fixedly installed at the bottom of the limiting block (6); an annular protrusion is provided at one end of the pull rod (61); the annular protrusion is sleeved inside one end of the fixing rod (7); and protrusions are provided in the middle and at the end of the fixing rod (7).

3. The stable installation structure of a frequency converter according to claim 2, characterized in that: The cross sections of the protrusions arranged in the middle and at the ends of the fixing rod (7) are both rectangular, and the protrusions arranged in the middle of the fixing rod (7) and the protrusions arranged at the ends of the fixing rod (7) are arranged alternately.

4. The stable installation structure of a frequency converter according to claim 1, characterized in that: The left mounting base (2) and the right mounting base (21) are both provided with a placement inner cavity, and one end of the left fixing block (3) and the right fixing block (31) are both provided with a limiting protrusion, and the limiting protrusion is the same size as the placement inner cavity.

5. The stable installation structure of a frequency converter according to claim 1, characterized in that: A limiting plate is provided at the bottom of the limiting block (6), and the limiting plate is sleeved in the left inner cavity (4) and the right inner cavity (41). An inclined surface is provided at one end of the limiting block (6).

6. The stable installation structure of a frequency converter according to claim 1, characterized in that: A plurality of groups of protrusions are provided on one side of the left fixed block (3) and the right fixed block (31), and the cross section of the protrusions is semicircular. A through slot is provided on the side of the frequency converter (8).

7. The stable installation structure of a frequency converter according to claim 2, characterized in that: The through holes opened on one side of the left fixing block (3) and the right fixing block (31) are circular, and rectangular grooves are provided on both sides of the through holes. A convex block with a rectangular cross section is provided in the middle of the fixing rod (7) and is sleeved in the rectangular groove.

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