Shell structure of frequency converter

Abstract

The utility model discloses a shell structure of a frequency converter, and belongs to the technical field of frequency converter shells, and the shell structure comprises an upper cover shell, the bottom of the upper cover shell is fixedly connected with a connecting strip, the two sides of the inner side of the upper cover shell are fixedly connected with stop blocks, the middle positions of the stop blocks are rotatably connected with lead screws, and the other ends of the lead screws are rotatably connected to the inner wall of the upper cover shell. A mounting back plate is slidably connected to the top of the connecting strip in the upper cover shell, a connecting block B is fixedly connected to the top of one end of the mounting back plate and connected to the outer side of a lead screw through threads, the lead screw is rotatably connected to the top of the end, located on the check block, of the upper cover shell, and a cover plate is fixedly connected to the side edge of the lead screw. Side baffles are fixedly connected to the two sides of the cover plate; by means of the drawing design, the frequency converter can be directly placed on the installation back plate, then the installation back plate is pushed to slide into the upper cover shell, complex tools or equipment are not needed in the installation mode, and the installation difficulty and cost are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of frequency converter shell, in particular to a shell structure of frequency converter. BACKGROUND

[0002] In the fields of industrial automation, power electronics and data centers, frequency converters are widely used in motor speed regulation, energy saving and consumption reduction, and power quality control as an important power regulation device. With the continuous progress of technology and the increasing demand for application, higher requirements are put forward for the installation, use and later maintenance of frequency converters.

[0003] The traditional frequency converter installation method often adopts fixed or bolt fastening type. These methods require complex operation steps in the installation process, such as using professional tools, aligning hole positions, and tightening bolts, which not only consumes time and effort, but also easily causes equipment damage due to improper operation. In addition, the traditional installation method also has many inconveniences during later maintenance, such as the need to disassemble other components to expose the frequency converter, which increases the difficulty and cost of maintenance. Therefore, the present patent needs to be upgraded and reformed on the basis of the existing technology. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the present application provides a shell structure of frequency converter, which overcomes the deficiencies of the prior art and aims to solve the problem that the traditional frequency converter installation method often adopts fixed or bolt fastening type, which requires complex operation steps in the installation process, such as using professional tools, aligning hole positions, and tightening bolts, which not only consumes time and effort, but also easily causes equipment damage due to improper operation. In addition, the traditional installation method also has many inconveniences during later maintenance, such as the need to disassemble other components to expose the frequency converter, which increases the difficulty and cost of maintenance.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a shell structure of frequency converter, comprising an upper cover shell, the upper cover shell is fixedly connected with a connecting strip at the bottom, the inner side of the upper cover shell is fixedly connected with a stop block at both sides, a lead screw is rotatably connected to the middle position of the stop block, the other end of the lead screw is rotatably connected to the inner wall of the upper cover shell, an installation back plate is slidably connected to the top position of the connecting strip inside the upper cover shell, a B connecting block is fixedly connected to the top position of one end of the installation back plate, the B connecting block is connected to the outer side of the lead screw through threads, a lead screw is rotatably connected to the top position of one end of the stop block of the upper cover shell, a cover plate is fixedly connected to the side of the lead screw, and side stop plates are fixedly connected to both sides of the cover plate.

[0006] By adopting the technical scheme, the initial state of the shell structure is that the mounting backboard is plugged in the inside of the upper cover shell, the B adapter block is attached to the inner wall of the upper cover shell, and the cover plate is attached to the outside of the upper cover shell, the side baffle is attached to the outer wall of the upper cover shell, in use, the cover plate is rotated around the hinge until the outside of the cover plate is attached to the top of the upper cover shell, the mounting backboard is pulled out of the inside of the upper cover shell, at this time, the B adapter block moves along the screw rod to the side of the stop block until the B adapter block is completely attached to the side of the stop block, then the frequency converter is installed on the top of the mounting backboard, after the installation is completed, the mounting backboard is pushed into the inside of the upper cover shell, then the cover plate is rotated along the hinge until the side of the cover plate is attached to the outside of the upper cover shell.

[0007] As a preferred technical scheme of the present application, one end of the screw rod penetrates through the rear outside of the upper cover shell and is fixedly connected with a fixed block, the outside of the upper cover shell is fixedly connected with an adapter ring, the adapter ring is located outside the screw rod, and the adapter ring has the same diameter as the fixed block, an adapter groove is arranged outside the adapter ring, a sliding groove is arranged outside the fixed block, the adapter groove and the sliding groove have the same structure, and a limiting ring is slidingly connected outside the sliding groove.

[0008] By adopting the technical scheme, the limiting ring is located outside the fixed block, the B adapter block drives the internal screw rod to rotate when the mounting backboard is pulled out of the inside of the upper cover shell, when the mounting backboard is pulled out of the fixed position, the limiting ring is slid to the outside of the adapter groove, at this time, the limiting ring limits the rotation of the fixed block, thereby limiting the rotation of the screw rod and the movement of the B adapter block outside the screw rod, so as to fix the position of the mounting backboard, and the mounting backboard of the frequency converter does not displace when the frequency converter is installed or repaired.

[0009] As a preferred technical scheme of the present application, the side of the stop block is fixedly connected with a sliding rod at positions above and below the screw rod, and the other end of the sliding rod is fixedly connected to the inner wall of the upper cover shell in the extension direction of the screw rod.

[0010] By adopting the technical scheme, the movement of the B adapter block outside the screw rod is more stable through the arrangement of the sliding rod.

[0011] As a preferred technical scheme of the present application, the other end of the mounting backboard is fixedly connected with a connecting plate, and the top of the connecting plate is fixedly connected with a handle.

[0012] By adopting the technical scheme, the staff can pull the mounting backboard out of the inside of the upper cover shell by holding the handle, thereby increasing the comfort of operation.

[0013] As a preferred technical scheme of the present application, the bottom of the connecting strip is fixedly attached with a bottom plate, and the connecting strip is internally provided with a connecting hole penetrating through the bottom of the bottom plate.

[0014] By adopting the above technical scheme, the bolt can be inserted into the connecting hole to fix the connecting strip and the bottom plate, thereby realizing the fixation between the upper cover shell and the bottom plate.

[0015] As a preferred technical scheme of the present application, the side plate is fixedly connected with an A connecting block at a position away from one end of the hinge, the A connecting block is rotatably connected with a bolt inside, one end of the bolt is fixedly connected with a threaded layer outside, and the connecting strip is internally provided with a threaded hole.

[0016] By adopting the above technical scheme, when the cover plate is rotated around the hinge to the side edge of the upper cover shell, the threaded layer is threadedly connected inside the threaded hole, thereby realizing the position fixation of the cover plate.

[0017] As a preferred technical scheme of the present application, the A connecting block is internally provided with a limiting groove, and the threaded layer is just abutted inside the limiting groove.

[0018] By adopting the above technical scheme, when the threaded layer is screwed out of the threaded hole, the limiting groove can prevent the bolt from being separated.

[0019] As a preferred technical scheme of the present application, the upper cover shell is provided with heat dissipation holes at positions on both sides.

[0020] By adopting the above technical scheme, the heat dissipation holes are arranged in multiple groups at equidistant positions on the side edges of the upper cover shell, thereby increasing the heat dissipation of the frequency converter.

[0021] The present application has the following beneficial effects:

[0022] In the present application, when the frequency converter needs to be overhauled or replaced, the user can rotate the bolt to make the threaded layer separate from the threaded hole of the bottom plate, then turn over the cover plate to rotate to the top of the upper cover shell, and then easily pull out the installation back plate from the inside of the upper cover shell. This disassembly method does not need to disassemble other components or damage the shell structure, thereby reducing the difficulty and cost of overhaul.

[0023] 2、In the present application, the installation back plate is connected with the inside of the upper cover shell through a sliding rod and a lead screw. The sliding rod ensures that the installation back plate can smoothly slide in a specific direction, and the lead screw provides rotation and locking functions. The user can rotate the limiting ring on the lead screw to adjust the position of the installation back plate and lock it at the required position. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view structural schematic diagram of the present application;

[0025] Figure 2It is a bottom perspective structure schematic diagram of the application;

[0026] Figure 3 It is a side cross-section structure schematic diagram of the screw rod of the application;

[0027] Figure 4 It is Figure 3 A structure enlarged schematic diagram of the application;

[0028] Figure 5 It is a back perspective structure schematic diagram of the application;

[0029] Figure 6 It is Figure 5 B structure enlarged schematic diagram of the application;

[0030] Figure 7 It is a cross-section structure schematic diagram of the A adapter block in the application;

[0031] Figure 8 It is a structure schematic diagram of the application after the buckling and locking.

[0032] In the figure: 1, upper cover shell; 2, bottom plate; 3, hinge; 4, cover plate; 5, side baffle; 501, A adapter block; 502, limiting groove; 503, bolt; 504, threaded layer; 6, adapter strip; 7, heat dissipation hole; 8, mounting back plate; 801, connecting plate; 802, handle; 803, B adapter block; 9, connecting hole; 10, threaded hole; 11, stop block; 12, sliding rod; 13, screw rod; 14, fixed block; 15, sliding groove; 16, adapter ring; 17, adapter groove; 18, limiting ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0034] Refer to Figures 1-8A shell structure of a frequency converter, comprising an upper cover shell 1, the upper cover shell 1 is fixedly connected with a connecting strip 6 at the bottom, the inner side of the upper cover shell 1 is fixedly connected with a stop block 11 at both sides, the stop block 11 is rotatably connected with a lead screw 13 at the middle position, the other end of the lead screw 13 is rotatably connected with the inner wall of the upper cover shell 1, a mounting back plate 8 is slidably connected with the top of the connecting strip 6 in the upper cover shell 1, the mounting back plate 8 is fixedly connected with a B connecting block 803 at one end of the top, the B connecting block 803 is threadedly connected with the outer side of the lead screw 13, the lead screw 13 is rotatably connected with the upper cover shell 1 at one end of the top of the stop block 11, the side of the lead screw 13 is fixedly connected with a cover plate 4, the cover plate 4 is fixedly connected with a side stop plate 5 at both sides, the initial state of the shell structure is that the mounting back plate 8 is inserted into the upper cover shell 1, wherein the outer side of the B connecting block 803 is attached to the inner wall of the upper cover shell 1, and the cover plate 4 is attached to the outer side of the upper cover shell 1, wherein the side stop plate 5 is attached to the outer wall of the upper cover shell 1, in use, the cover plate 4 is rotated around the hinge 3 until the outer side of the cover plate 4 is attached to the top of the upper cover shell 1, the mounting back plate 8 is pulled out of the upper cover shell 1, at this time, the B connecting block 803 moves along the lead screw 13 to one side of the stop block 11 until the B connecting block 803 is completely attached to the side of the stop block 11, then the frequency converter is mounted on the top of the mounting back plate 8, after the installation is completed, the mounting back plate 8 is pushed into the upper cover shell 1, then the cover plate 4 is rotated along the hinge 3 until the side of the cover plate 4 is attached to the outer side of the upper cover shell 1.

[0035] In this embodiment, as shown in Figure 1 Figure 8 The end of the lead screw 13 penetrates through the outer side of the upper cover shell 1 and is fixedly connected with a fixed block 14, the outer side of the upper cover shell 1 is fixedly connected with a connecting ring 16, wherein the connecting ring 16 is located at the outer side of the lead screw 13, and the connecting ring 16 has the same diameter as the fixed block 14, the outer side of the connecting ring 16 is provided with a connecting groove 17, and the outer side of the fixed block 14 is provided with a sliding groove 15, wherein the connecting groove 17 and the sliding groove 15 have the same structure, the outer side of the sliding groove 15 is slidably connected with a limiting ring 18, and the initial position of the limiting ring 18 is located at the outer side of the fixed block 14, since the lead screw 13 is threadedly connected with the B connecting block 803, when the mounting back plate 8 is pulled out of the upper cover shell 1, the B connecting block 803 will drive the inner lead screw 13 to rotate, when the mounting back plate 8 is pulled out of the fixed position, the limiting ring 18 is slidably pushed to the outer side of the connecting groove 17, at this time, the limiting ring 18 limits the rotation of the fixed block 14, thereby limiting the rotation of the lead screw 13, so that the B connecting block 803 cannot move to the outer side of the lead screw 13, thereby fixing the position of the mounting back plate 8, so that when the frequency converter is installed or repaired, the mounting back plate 8 of the frequency converter will not be displaced.

[0036] In this embodiment, as shown in Figure 1 Figure 8 ​​As shown, the side of the block 11 is fixedly connected with the slide rod 12 at the upper and lower ends of the screw rod 13, and the other end of the slide rod 12 is fixedly connected to the inner wall of the upper cover shell 1 along the extension direction of the screw rod 13. The setting of the slide rod 12 ensures that the movement of the B adapter block 803 outside the screw rod 13 is more stable.

[0037] In this embodiment, as shown in the figure, Figure 1 - Figure 8 As shown, the other end of the mounting back plate 8 is fixedly connected with the connecting plate 801, and the top of the connecting plate 801 is fixedly connected with the handle 802. The staff can pull out the mounting back plate 8 from the inside of the upper cover shell 1 by holding the handle 802, thereby increasing the comfort of operation.

[0038] In this embodiment, as shown in the figure, Figure 1 - Figure 8 As shown, the bottom of the adapter strip 6 is fixedly attached to the bottom plate 2, and the inside of the adapter strip 6 is provided with a connecting hole 9 which penetrates the bottom of the bottom plate 2. The connecting hole 9 can be inserted into a bolt to fix the adapter strip 6 and the bottom plate 2, thereby realizing the fixation between the upper cover shell 1 and the bottom plate 2.

[0039] In this embodiment, as shown in the figure, Figure 1 - Figure 8 As shown, the side plate 5 is fixedly connected with the A adapter block 501 at the position away from the hinge 3, and the inside of the A adapter block 501 is rotatably connected with the bolt 503. The outside of one end of the bolt 503 is fixedly connected with the threaded layer 504, and the inside of the adapter strip 6 is provided with a threaded hole 10. When the cover plate 4 rotates around the hinge 3 to the side of the upper cover shell 1, the threaded layer 504 is screwedly connected in the threaded hole 10, thereby realizing the position fixation of the cover plate 4.

[0040] In this embodiment, as shown in the figure, Figure 1 - Figure 8 As shown, the inside of the A adapter block 501 is provided with a limiting groove 502, and the threaded layer 504 is just located in the inside of the limiting groove 502. When the threaded layer 504 is screwed out of the threaded hole 10, the limiting groove 502 can prevent the bolt 503 from being separated.

[0041] In this embodiment, as shown in the figure, Figure 1 - Figure 8 As shown, the upper cover shell 1 is provided with a plurality of sets of heat dissipation holes 7 which are equidistantly arranged at the side of the upper cover shell 1, thereby increasing the heat dissipation of the frequency converter.

[0042] Working principle: first rotate the cover plate 4 around the hinge 3, until the outer side of the cover plate 4 completely fit in the top of the upper cover shell 1, by holding the handle 802 or connecting plate 801, pull the installation back plate 8, make it move from the inside of the upper cover shell 1 to the outside, in the process of moving, the B adapter block 803 move outward will drive the screw rod 13 rotate, until the installation back plate 8 completely from the inside of the upper cover shell 1 out, if you need to limit the movement of the installation back plate 8, can push the limit ring 18 make it with the adapter groove 17 alignment and clamping, so as to fix the screw rod 13, so that the installation back plate 8 can't move, put the frequency converter on the top of the installation back plate 8, and then pull the limit ring 18 in the opposite direction to make it with the adapter groove 17 disengaged, push the installation back plate 8 along the sliding rail and the screw rod 13 inside the upper cover shell 1 to the inside, finally, rotate the cover plate 4 around the hinge 3 back to the side of the upper cover shell 1, through the bolt 503 fixed cover plate 4 in the outer side of the upper cover shell 1.

[0043] The above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A housing structure of a frequency converter, comprising an upper cover housing (1), characterized in that The upper cover shell (1) bottom is fixedly connected with a connecting strip (6), the upper cover shell (1) inner side two side positions are fixedly connected with a stop block (11), the stop block (11) middle position is rotatably connected with a lead screw (13), the lead screw (13) other end is rotatably connected on the upper cover shell (1) inner wall, the upper cover shell (1) inside is slidably connected with a mounting back plate (8) at the connecting strip (6) top position, the mounting back plate (8) one end top position is fixedly connected with a B connecting block (803), the B connecting block (803) is connected on the lead screw (13) outer side through a thread, the upper cover shell (1) is rotatably connected with the lead screw (13) at the stop block (11) one end top, the lead screw (13) side is fixedly connected with a cover plate (4), the cover plate (4) two sides are fixedly connected with a side baffle (5).

2. The housing structure of a frequency converter according to claim 1, characterized in that The lead screw (13) one end penetrates the upper cover shell (1) rear outer side and is fixedly connected with a fixed block (14), the upper cover shell (1) outer side is fixedly connected with a connecting ring (16), wherein the connecting ring (16) is located at the lead screw (13) outer side position, and the connecting ring (16) and the fixed block (14) are the same diameter, the connecting ring (16) outer side is equipped with a connecting groove (17), the fixed block (14) outer side is equipped with a sliding groove (15), wherein the connecting groove (17) and the sliding groove (15) are the same structure, the sliding groove (15) outer side is slidably connected with a limiting ring (18).

3. The housing structure of a frequency converter according to claim 1, characterized in that, The stop block (11) side is fixedly connected with a sliding rod (12) at the lead screw (13) upper and lower two end positions, the sliding rod (12) other end is fixedly connected on the upper cover shell (1) inner wall position along the lead screw (13) extension direction.

4. The housing structure of a frequency converter according to claim 1, wherein The mounting back plate (8) other end is fixedly connected with a connecting plate (801), the connecting plate (801) top is fixedly connected with a handle (802).

5. The housing structure of a frequency converter according to claim 1, wherein The connecting strip (6) bottom is fixedly attached with a bottom plate (2), the connecting strip (6) inside is equipped with a connecting hole (9), the connecting hole (9) penetrates the bottom plate (2) bottom.

6. The housing structure of a frequency converter according to claim 1, wherein The side baffle (5) is fixedly connected with an A connecting block (501) at the position away from the hinge (3) one end, the A connecting block (501) inside is rotatably connected with a bolt (503), the bolt (503) one end outer side is fixedly connected with a thread layer (504), the connecting strip (6) inside is equipped with a threaded hole (10).

7. A housing structure for a frequency converter according to claim 6, wherein The A connecting block (501) inside is equipped with a limiting groove (502), and the thread layer (504) is just abutted in the limiting groove (502) inside.

8. The housing structure of a frequency converter according to claim 1, characterized in that, The upper cover shell (1) both sides are provided with heat dissipation holes (7).

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