High-voltage frequency converter convenient to maintain

Abstract

The utility model relates to the technical field of high-voltage frequency converters, in particular to a high-voltage frequency converter convenient to maintain. The device comprises a box body; a high-voltage frequency converter body is arranged in the box body, front, back, left and right frames are arranged, the front frame is rotatably connected with a box door, and the rest side frames are symmetrically provided with first sliding rails and second sliding rails which are parallel to each other respectively. The first sliding plates are arranged between the two adjacent first sliding rails in a sliding mode, and the second sliding plates are arranged between the two adjacent second sliding rails in a sliding mode; the first sliding plate and the second sliding plate seal the frame after sliding combination. The first limiting assembly and the second limiting assembly are arranged on the box body, the first sliding plate and the second sliding plate and used for limiting the first sliding plate and the second sliding plate. According to the utility model, by sliding the sliding plate I and the sliding plate II and limiting and fixing the sliding plate I and the sliding plate II, the upper / lower half parts of the corresponding sides of the box body can be exposed, so that a worker can conveniently and directly maintain the high-voltage frequency converter body in the box body, and the damaged part of the high-voltage frequency converter body does not need to be disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage frequency converters, in particular to a high-voltage frequency converter which is easy to maintain. Background Art

[0002] A high-voltage inverter is an electrical device used to adjust the speed of a motor. It can control the speed of the motor by adjusting the output frequency, thereby achieving precise control of the device or system. The basic working principle of a high-voltage inverter is to control the speed of the motor by changing the frequency of the input power supply. It converts the AC power from the power grid into an adjustable frequency AC power, allowing the motor to run at different speeds.

[0003] However, existing high-voltage inverters are usually installed inside a box with only one side door. When the high-voltage inverter is damaged, the damaged part may be deep inside the box, which is difficult for the staff to reach and difficult to repair. The damaged part needs to be removed from the box and then repaired. The installation and disassembly process is complicated and time-consuming. Utility Model Content

[0004] In view of the problems existing in the background technology, a high-voltage frequency converter which is easy to maintain is proposed.

[0005] The utility model proposes a high-voltage frequency converter that is easy to maintain, including a box body; a high-voltage frequency converter body is arranged inside the box body, and frames are arranged in front, back, left and right. The front frame is rotatably connected to the box door, and the other side frames are symmetrically provided with slide rails 1 and 2 that are parallel to each other. A slide plate 1 is slidably arranged between two adjacent groups of slide rails 1, and a slide plate 2 is slidably arranged between two adjacent groups of slide rails 2; the slide plates 1 and 2 are slidably combined to seal the frame. And a limit assembly 1 and a limit assembly 2 are arranged on the box body, the slide plate 1 and the slide plate 2 to limit the slide plate 1 and the slide plate 2.

[0006] Preferably, the lower ends of the plurality of slide plates 1 are all provided with through holes 1, and the upper ends are all provided with through holes 2; the limiting assembly 2 includes a limiting handle that penetrates and slides on the slide plate 2; a fixing plate corresponding to the limiting handles is provided on the top of the box body; and a limiting hole that cooperates with the limiting handle is provided on one side of the fixing plate. When the slide plate 1 slides to the top and the slide plate 2 slides to the bottom, the limiting handle limits the slide plate 1 by passing through the through holes 1; when the slide plate 1 and the slide plate 2 both slide to the top, the limiting handle limits the slide plate 1 and the slide plate 2 by passing through the through holes 2 and the limiting holes respectively.

[0007] Preferably, the limiting handle is U-shaped, with a closed end located outside the box body and a spring connected between the limiting handle and the second slide plate.

[0008] Preferably, the open ends of the multiple limit handles are each provided with a supporting hole; the limit assembly includes a locking rod movably connected to the multiple supporting holes; the multiple slides are each provided with a placement groove above the through hole; a supporting plate supporting the locking rod is rotatably connected in the placement groove; and a torsion spring is connected between the supporting plate and the bottom of the placement groove.

[0009] Preferably, two placement slots, two supporting plates and two torsion springs are symmetrically arranged on the corresponding slide plate.

[0010] Preferably, when the slide plate 1 slides to the top and the slide plate 2 slides to the bottom, the slide plate 1 and the slide plate 2 form a closed state on the corresponding sides of the box body.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] (1) The high-voltage inverter that is easy to maintain can be repaired by sliding the slide plate 1 downward along the slide rail 1 to the bottom, exposing the upper half of the corresponding side of the box body. The upper half of the high-voltage inverter body can be repaired by sliding the slide plate 1 and the slide plate 2 upward to the top, and then inserting the limit handle into the corresponding through hole 2 and the limit hole, so that the slide plate 1 and the slide plate 2 are fixed at the top of the box body, and the lower half of the corresponding side of the box body is exposed, and the lower half of the high-voltage inverter body can be repaired. It is convenient for the staff to directly repair the high-voltage inverter body inside the box, without having to disassemble the damaged part of the high-voltage inverter body.

[0013] (2) The high-voltage inverter that is easy to maintain can lock the limit assembly 2 by sliding the slide plate 1 on each side to the top and the slide plate 2 to the bottom, then pulling the locking rod downward and inserting it into the supporting hole, and the limit assembly 2 can only be unlocked by opening the box door. This prevents unauthorized personnel from opening the box by sliding the slide plate 1 / slide plate 2 and damaging the high-voltage inverter body.

[0014] (3) The high-voltage inverter that is easy to maintain can also increase the amount of light entering the box by opening the frames around the box at the same time, making it easier for workers to observe the internal structure of the high-voltage inverter body and repair damaged parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the limiting component 1 and the limiting component 2 of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second limit assembly of the utility model;

[0018] Figure 4 This is a structural schematic diagram of a limit assembly of the utility model;

[0019] Figure 5 It is a schematic diagram of the supporting plate and torsion spring structure of the utility model.

[0020] Figure numerals: 1. box body; 2. box door; 3. high-voltage inverter body; 4. slide rail 1; 5. slide rail 2; 6. slide plate 1; 7. slide plate 2; 8. limit assembly 1; 81. supporting hole; 82. locking rod; 83. placement groove; 84. supporting plate; 85. torsion spring; 9. limit assembly 2; 91. through hole 1; 92. through hole 2; 93. limit handle; 94. spring; 95. fixing plate; 96. limit hole. DETAILED DESCRIPTION

[0021] Embodiment 1

[0022] like Figure 1-5 As shown, the utility model proposes a high-voltage frequency converter that is easy to maintain, including a box body 1; a high-voltage frequency converter body 3 is arranged inside the box body 1, and the front, back, left and right are frames, the front frame is rotatably connected to the box door 2, and the other side frames are symmetrically provided with mutually parallel slide rails 1 4 and slide rails 2 5. A slide plate 1 6 is slidably arranged between two adjacent sets of slide rails 1 4, and a slide plate 2 7 is slidably arranged between two adjacent sets of slide rails 2 5; the slide plate 1 6 and the slide plate 2 7 are slidably combined to seal the frame. And a limit assembly 1 8 and a limit assembly 2 9 are arranged on the box body 1, the slide plate 1 6 and the slide plate 2 7 to limit the slide plate 1 6 and the slide plate 2 7.

[0023] The limit assembly 1 8 can prevent unauthorized personnel from opening the box 1 by sliding the slide plate 1 6 / slide plate 2 7 and damaging the high-voltage inverter body 3. The limit assembly 2 9 facilitates the staff to directly repair the high-voltage inverter body 3 inside the box 1 without disassembling the damaged part of the high-voltage inverter body 3.

[0024] Embodiment 2

[0025] like Figure 1-5As shown, the utility model proposes a high-voltage frequency converter that is easy to maintain. Compared with the first embodiment, the present embodiment further includes: a through hole 91 is provided at the lower end of a plurality of slide plates 6, and a through hole 2 92 is provided at the upper end; the limiting assembly 2 9 includes a limiting handle 93 that penetrates and slides on the slide plate 2 7; a fixing plate 95 corresponding to the limiting handle 93 is provided at the top of the box body 1; and a limiting hole 96 that cooperates with the limiting handle 93 is provided on one side of the fixing plate 95. When the slide plate 1 6 slides to the top and the slide plate 2 7 slides to the bottom, the limiting handle 93 limits the slide plate 1 6 by passing through the through hole 1 91. The slide plate 1 6 is fixed at the top of the slide rail 1 4, so that the slide plate 1 6 and the slide plate 2 7 together form a closed state for the corresponding frame. When the slide plate 1 6 and the slide plate 2 7 both slide to the top, the limiting handle 93 limits the slide plate 1 6 and the slide plate 2 7 by passing through the through hole 2 92 and the limiting hole 96 respectively. The slide plate 1 6 and the slide plate 2 7 can be fixed at the top of the frame, so that the bottom opening of the corresponding side frame is opened, which is convenient for the staff to repair the lower half of the high-voltage inverter body 3. The limit handle 93 is U-shaped, and its closed end is located outside the box body 1 and a spring 94 is connected between the slide plate 2 7. The limit handle 93 and the through hole 1 91 / through hole 2 92 are plugged more tightly, and the spring 94 plays a connecting role on the limit handle 93, avoiding the limit handle 93 from falling and losing. The open ends of the plurality of limit handles 93 are all provided with supporting holes 81; the limit assembly 1 8 includes a locking rod 82 movably connected to the plurality of supporting holes 81; the plurality of slide plates 1 6 are all provided with placement grooves 83 above the through hole 1 91; a support plate 84 supporting the locking rod 82 is rotatably connected in the placement groove 83; a torsion spring 85 is connected between the support plate 84 and the bottom of the placement groove 83. The movement of the limit handle 93 is limited by the locking rod 82, so that the limit assembly 29 is locked inside the box 1, and the limit assembly 29 can only be unlocked by opening the box door 2. Prevent unauthorized personnel from opening the box 1 by sliding the slide plate 16 / slide plate 27 and causing damage to the high-voltage inverter body 3. Two placement slots 83, support plates 84 and torsion springs 85 are symmetrically arranged on the corresponding slide plate 16. Make the support of the locking rod 82 by the support plate 84 more stable. When the slide plate 16 slides to the top and the slide plate 27 slides to the bottom, the slide plate 16 and the slide plate 27 form a closed state on the corresponding sides of the box 1. Prevent the high-voltage inverter body 3 from being exposed to the outside.

[0026] The working principle of the utility model is as follows: when the high-voltage inverter body 3 needs to be repaired, the box door 2 is first opened, and the locking rod 82 is lifted upward, so that the locking rod 82 abuts against the supporting plate 84 and the supporting plate 84 rotates upward around the groove wall of the placement groove 83, so that the supporting surface of the supporting plate 84 is pressed against the slide plate 16, and the torsion spring 85 is compressed at the same time. When the locking rod 82 is lifted above the supporting plate 84, the torsion spring 85 is reset to drive the supporting plate 84 to reset. At this time, the locking rod 82 is placed on the supporting surface of the supporting plate 84, and the locking rod 82 is released from the limit handle 93. Then the limit handle 93 is pulled outward to separate the limit handle 93 from the through hole 1 91, and the limit handle 93 on the slide plate 1 6 is released.

[0027] When the staff needs to repair the upper half of the high-voltage inverter body 3, the slide plate 6 can be slid down along the slide rail 4 to the bottom to expose the upper half of the corresponding side of the box body 1.

[0028] When the staff needs to repair the lower half of the high-voltage inverter body 3, they can slide the slide plate 1 6 and the slide plate 2 7 upward to the top, and then insert the limit handle 93 into the corresponding through hole 2 92 and the limit hole 96, so as to limit and fix the slide plate 1 6 and the slide plate 2 7 on the top of the box body 1, and expose the lower half of the corresponding side of the box body 1. At the same time, opening the frame around the box body 1 can also increase the amount of light entering the box body 1, which is convenient for the staff to observe the internal structure of the high-voltage inverter body 3.

[0029] When the maintenance is completed, slide the slide plate 1 6 on each side to the top, slide the slide plate 2 7 to the bottom, insert the limit handle 93 into the corresponding through hole 1 91 to limit the slide plate 1 6, then pull the locking rod 82 downward, so that the support plate 84 rotates downward around the groove wall of the placement groove 83, and then put the locking rod 82 into the support hole 81 to lock the limit assembly 2 9 to prevent unauthorized personnel from opening the box body 1 by sliding the slide plate 1 6 / slide plate 2 7 and causing damage to the high-voltage inverter body 3. Finally, close the box door 2 and lock it.

[0030] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A high voltage frequency converter which is easy to maintain, characterized in that: include A box body (1); a high-voltage frequency converter body (3) is arranged inside the box body (1), and frames are arranged at the front, back, left and right sides. The front frame is rotatably connected to a box door (2), and the other side frames are symmetrically provided with a first slide rail (4) and a second slide rail (5) which are parallel to each other. A slide plate (6) is slidably arranged between two adjacent sets of slide rails (4), and a slide plate (7) is slidably arranged between two adjacent sets of slide rails (5); the slide plate (6) and the slide plate (7) are slidably combined to seal the frame; And a limiting component one (8) and a limiting component two (9) are arranged on the box body (1), the slide plate one (6) and the slide plate two (7) to limit the slide plate one (6) and the slide plate two (7).

2. The high-voltage frequency converter that is easy to maintain according to claim 1, characterized in that: The lower ends of the plurality of slide plates (6) are all provided with through holes (91), and the upper ends are all provided with through holes (92); the limiting assembly (9) comprises a limiting handle (93) penetrating and slidably connected to the slide plate (7); a fixing plate (95) corresponding to the limiting handle (93) is provided at the top of the box body (1); a limiting hole (96) cooperating with the limiting handle (93) is provided on one side of the fixing plate (95); When the slide plate 1 (6) slides to the top and the slide plate 2 (7) slides to the bottom, the limit handle (93) limits the slide plate 1 (6) by passing through the through hole 1 (91); when the slide plate 1 (6) and the slide plate 2 (7) both slide to the top, the limit handle (93) limits the slide plate 1 (6) and the slide plate 2 (7) by passing through the through hole 2 (92) and the limit hole (96) respectively.

3. The high-voltage frequency converter that is easy to maintain according to claim 2, characterized in that: The limiting handle (93) is U-shaped, with a closed end located outside the box body (1) and a spring (94) connected between the limiting handle and the second slide plate (7).

4. The high-voltage frequency converter that is easy to maintain according to claim 3 is characterized in that: The open ends of the plurality of limit handles (93) are each provided with a supporting hole (81); the limit assembly (8) comprises a locking rod (82) movably connected to the plurality of supporting holes (81); the plurality of slide plates (6) are each provided with a placement groove (83) above the through hole (91); a supporting plate (84) supporting the locking rod (82) is rotatably connected in the placement groove (83); and a torsion spring (85) is connected between the supporting plate (84) and the groove bottom of the placement groove (83).

5. The high-voltage frequency converter easy to maintain according to claim 4, characterized in that: Two placement grooves (83), two supporting plates (84) and two torsion springs (85) are symmetrically arranged on the corresponding slide plate 1 (6).

6. The high-voltage frequency converter easy to maintain according to claim 1, characterized in that: When the slide plate 1 (6) slides to the top and the slide plate 2 (7) slides to the bottom, the slide plate 1 (6) and the slide plate 2 (7) form a closed state on the corresponding sides of the box body (1).

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