Anti-interference signal device for frequency converter

Abstract

The utility model discloses an anti-interference signal device for a frequency converter, which comprises a frequency converter, mounting grooves, fixing threaded holes, a support column, a limiting head, a fixing piece, a support table, a choking coil stabilizing groove, a rotating hole, a clamping frame and a choking coil, the front parts of four corners of the frequency converter are respectively provided with the mounting grooves, and the fixing threaded holes are distributed at the rear ends of the mounting grooves; the limiting heads are fixed to the top ends of the supporting columns, the two limiting columns are fixed to the left mounting groove and the right mounting groove in the bottom through the limiting heads respectively, the fixing piece is installed at the bottom ends of the supporting columns, the supporting table is fixed to the front ends of the supporting columns, the choking coil stabilizing grooves are distributed in the middle of the supporting table, and the rotating hole is formed in the middle of the supporting table. The clamping frame is installed in the choking coil stabilizing groove through the rotating hole, and the choking coil is placed in the choking coil stabilizing groove. According to the utility model, the problems that the common mode choke coil is heavy in weight, the burden of components of the frequency converter is heavy through cable winding suspension, and later renovation is not facilitated are solved.

Description

Technical Field

[0001] The utility model relates to the field of frequency converter anti-interference, in particular to an anti-interference signal device for a frequency converter. Background Art

[0002] Anti-interference signal refers to a signal that can offset or weaken interference signals, so that the interfered device can work normally. As disclosed in the patent publication number CN207782815U, in the inverter, the anti-interference signal can effectively reduce or eliminate interference signals from the outside world, thereby improving the stability and reliability of the inverter.

[0003] The common mode choke can eliminate interference signals by being wound around the inverter cable, but the common mode choke is heavy, and being suspended by the winding of the cable puts a heavy burden on the components of the inverter, which is not conducive to subsequent repairs. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-interference signal device for a frequency converter to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-interference signal device for a frequency converter, comprising a frequency converter, a mounting slot, a fixed threaded hole, a support column, a limit head, a fixing piece, a support platform, a choke stabilization slot, a rotating hole, a clamping frame, and a choke. The frequency converter is respectively provided with mounting slots at the front of the four corners, and the fixed threaded holes are distributed at the rear end of the mounting slots. The limit head is fixed at the top of the support column, and the two limit columns are respectively fixed to the left and right mounting slots at the bottom through the limit heads. The fixing piece is installed at the bottom of the support column, and the support platform is fixed to the front end of the support column. The choke stabilization slots are distributed in the middle of the support platform, and the rotating hole is opened in the middle of the support platform. The clamping frame is installed in the choke stabilization slot through the rotating hole, and the choke is placed in the choke stabilization slot.

[0006] Based on the above technical solution, the clamping frame includes a fixing ring, a rotating shaft, a handle, a thread, and a clamping plate. The fixing ring is installed at the rear end of the rear choke stabilizing groove, the rotating shaft is rotatably connected to the fixing ring through a rotating hole, the handle is fixed to the front of the rotating shaft through the front end of the support platform, the thread is distributed on the side end of the rotating shaft through the choke stabilizing groove, and the clamping plate is threadedly connected to the thread through the choke stabilizing groove.

[0007] Based on the above technical solution, the choke is clamped in the choke stabilizing groove by a clamping plate.

[0008] Compared with the prior art, the utility model has the following advantages: the utility model installs a support platform at the bottom of the inverter and uses a clamping frame to achieve stable support of the choke, thereby reducing the burden on internal components and facilitating later repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0010] Figure 2 This is a schematic diagram of the support platform structure of the utility model.

[0011] Figure 3 This is a schematic diagram of the structure of the clamping frame of the utility model.

[0012] In the figure: 1. frequency converter, 2. mounting slot, 3. fixing threaded hole, 4. support column, 5. limit head, 6. fixing part, 7. support platform, 8. choke stabilizing slot, 9. rotating hole, 10. clamping frame, 11. choke, 12. fixing ring, 13. rotating shaft, 14. handle, 15. thread, 16. splint. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1 to 3 As shown, an anti-interference signal device for a frequency converter includes a frequency converter 1, a mounting slot 2, a fixed threaded hole 3, a support column 4, a limit head 5, a fixing piece 6, a support platform 7, a choke stabilizing slot 8, a rotating hole 9, a clamping frame 10, and a choke 11. The frequency converter 1 is respectively provided with mounting slots 2 at the front of the four corners, the fixed threaded holes 3 are distributed at the rear end of the mounting slots 2, the limit head 5 is fixed at the top of the support column 4, and the two limit columns 4 are respectively fixed to the left and right mounting slots 2 at the bottom through the limit heads 5, the fixing piece 6 is installed at the bottom of the support column 4, the support platform 7 is fixed to the front end of the support column 4, the choke stabilizing slot 8 is distributed in the middle of the support platform 7, the rotating hole 9 is opened in the middle of the support platform 7, the clamping frame 10 is installed in the choke stabilizing slot 8 through the rotating hole 9, and the choke 11 is placed in the choke stabilizing slot 8.

[0015] The clamping frame 10 includes a fixing ring 12, a rotating shaft 13, a handle 14, a thread 15, and a clamp 16. The fixing ring 12 is installed at the rear end of the rear choke stabilizing groove 8. The rotating shaft 13 is rotatably connected to the fixing ring 12 through a rotating hole 9. The handle 14 is fixed to the front of the rotating shaft 13 through the front end of the support platform 7. The thread 15 is distributed on the side end of the rotating shaft 13 through the choke stabilizing groove 8. The clamp 16 is threadedly connected to the thread 15 through the choke stabilizing groove 8.

[0016] The choke 11 is clamped in the choke stabilizing groove 8 via a clamping plate 16 .

[0017] The working principle of the utility model is as follows: when in use, the cable connected to the bottom of the frequency converter 1 is wound around the choke 11, the choke 11 is placed in the choke stabilizing groove 8, the rotating shaft 13 is rotated along the fixing ring 12 by the handle 14, so that the thread 15 forces the clamping plate 16 to slide in the choke stabilizing groove 8 and clamp the choke 11, so as to achieve stable support for the choke 11, and eliminate the interference signal of the choke 11 to the frequency converter 1, while reducing the burden on the components in the frequency converter 1, so as to facilitate subsequent repairs.

[0018] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. An anti-interference signal device for a frequency converter, comprising a frequency converter (1), a mounting slot (2), a fixing threaded hole (3), a support column (4), a limit head (5), a fixing member (6), a support platform (7), a choke stabilization slot (8), a rotating hole (9), a clamping frame (10), and a choke (11), characterized in that: The inverter (1) has mounting grooves (2) respectively formed at the front of the four corners, the fixing threaded holes (3) are distributed at the rear end of the mounting grooves (2), the top end of the support column (4) is fixed with a limit head (5), and the two limit columns (4) are respectively fixed to the left and right mounting grooves (2) at the bottom through the limit heads (5), the fixing member (6) is installed at the bottom end of the support column (4), the support platform (7) is fixed to the front end of the support column (4), the choke stabilizing groove (8) is distributed in the middle of the support platform (7), the rotating hole (9) is opened in the middle of the support platform (7), the clamping frame (10) is installed in the choke stabilizing groove (8) through the rotating hole (9), and the choke (11) is placed in the choke stabilizing groove (8).

2. The anti-interference signal device for a frequency converter according to claim 1, characterized in that: The clamping frame (10) comprises a fixing ring (12), a rotating shaft (13), a handle (14), a thread (15), and a clamping plate (16); the fixing ring (12) is mounted on the rear end of the rear choke stabilizing groove (8); the rotating shaft (13) is rotatably connected to the fixing ring (12) through a rotating hole (9); the handle (14) is fixed to the front of the rotating shaft (13) through the front end of the support platform (7); the thread (15) is distributed on the side end of the rotating shaft (13) through the choke stabilizing groove (8); and the clamping plate (16) is threadably connected to the thread (15) through the choke stabilizing groove (8).

3. The anti-interference signal device for a frequency converter according to claim 1, characterized in that: The choke (11) is clamped in the choke stabilizing groove (8) via a clamping plate (16).

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