Dry-type rectifier transformer

Abstract

The utility model discloses a dry-type rectifier transformer, and relates to the technical field of dry-type rectifier transformers. The rectifier transformer comprises a main body plate and a rectifier transformer body fixed in the center of the upper end face of the main body plate, and further comprises a supporting plate fixed to the upper end face of the main body plate, and a blocking plate is clamped to the outer side of the supporting plate in a sliding mode; the limiting mechanism is arranged on the outer side of the supporting plate; and the base body is slidably clamped to the outer side of the main body plate, a buffer piece is fixed to the lower end face of the base body, and buffer mechanisms are symmetrically arranged on the left side and the right side of the base body. The position of the plugging plate can be limited by arranging the limiting clamping groove, the plugging plate can be prevented from deviating and shaking, the limiting clamping groove is matched with the limiting groove, the sealing performance between the plugging plate and the supporting plate can be guaranteed, then the arranged plugging plate can slide up and down along the interior of the limiting sliding groove through the limiting sliding block, the plugging plate can be rapidly opened, and the sealing effect is good. Therefore, workers can conveniently overhaul and maintain the rectifier transformer body from the two sides.

Description

Technical Field

[0001] The utility model belongs to the technical field of dry-type rectifier transformers, in particular to a dry-type rectifier transformer. Background Art

[0002] Dry-type transformers are widely used and refer to transformers whose cores and windings are not immersed in insulating oil. Cooling methods include natural air cooling (AN) and forced air cooling (AF). Natural air cooling allows the transformer to operate continuously at rated capacity for extended periods. Forced air cooling increases the transformer's output capacity by 50%. They are suitable for intermittent overload operation or emergency overload conditions. However, due to the significant increase in load loss and impedance voltage during overload, resulting in uneconomical operation, prolonged continuous overload operation should be avoided.

[0003] With the advancement of industrial production, the demand for large-current DC converters in various industries is increasing and becoming more stringent. After long-term use, dry-type transformers may malfunction due to collision or external force, and they need to be repaired. A protective box is provided on the outside of the dry-type transformer, but the protective box is mostly made of multiple sets of bolts or welding, which makes it inconvenient for staff to disassemble it, which in turn brings inconvenience to subsequent inspection and maintenance, reducing the practicality of the equipment. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a dry-type rectifier transformer, which can effectively solve the problems of the prior art.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a dry-type rectifier transformer, comprising a main body plate and a rectifier transformer body fixed to the center of the end surface of the main body plate, and further comprising:

[0007] The support plate is fixed to the upper end surface of the main plate, and the cross section of the support plate is a "U"-shaped structure. The outer side of the support plate is slidably connected to a blocking plate for protecting the rectifier transformer body;

[0008] A limiting mechanism is provided on the outer side of the support plate and is used to connect and limit the support plate and the blocking plate;

[0009] The base body is slidably connected to the outer side of the main body plate. A buffer piece is fixed on the lower end surface of the base body. The left and right sides of the base body are symmetrically provided with buffer mechanisms.

[0010] Furthermore, the limiting mechanism includes a limiting groove, a limiting slide and a limiting slider. The limiting groove is opened on the left and right sides of the support plate, and the cross-section of the limiting groove is a stepped structure. The limiting slide is opened on the left and right sides of the support plate, and the cross-section of the limiting slide is a "T"-shaped structure. The limiting slider is fixed on the inner side of the blocking plate, and the limiting slider can slide up and down along the inside of the limiting slide for adjustment.

[0011] Furthermore, a limiting slot is fixed on the upper end surface of the main body plate, and the limiting slot is engaged with the lower end surface of the blocking plate.

[0012] Furthermore, locking bolts are provided at the central positions of the left and right sides of the blocking plate, and the locking bolts pass through the blocking plate and are connected to the support plate.

[0013] Furthermore, heat sinks are symmetrically provided on the left and right sides of the blocking plate.

[0014] Furthermore, the buffer mechanism includes a positioning slide rod, a positioning slider, a connecting plate and a buffer plate. The positioning slide rod is symmetrically fixed on the left and right sides of the base body. The positioning slider is slidably engaged with the outer surface of the positioning slide rod. The connecting plate is fixed at the central position of the upper end surface of the positioning slider. One end of the buffer plate is connected to the central position of the connecting plate, and the other end of the buffer plate is connected to the lower end surface of the main body plate.

[0015] Furthermore, a return spring is arranged on the outer surface of the positioning slide bar, and one end of the return spring is connected to the positioning slide bar.

[0016] The utility model has the following beneficial effects:

[0017] The utility model can limit the position of the sealing plate by setting a limiting slot, which can prevent the sealing plate from being offset and shaking, and cooperate with the limiting groove to ensure the sealing between the sealing plate and the support plate. Then, the set sealing plate can slide up and down along the inside of the limiting slide groove through the limiting slider, so that the sealing plate can be quickly opened, which can facilitate the staff to inspect and maintain the rectifier transformer body from both sides. Finally, the buffer mechanism set can ensure the buffering effect between the main plate and the base body, ensure the stability of the main plate, and avoid the main plate from shaking significantly, which affects subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1This is a top view of the rectifier transformer body of the utility model;

[0020] Figure 2 This is a top view schematic diagram of the dry-type rectifier transformer of the utility model;

[0021] Figure 3 This is a bottom view of the blocking plate of the utility model;

[0022] Figure 4 This is a schematic top view of the base body of the utility model;

[0023] Figure 5 This is a schematic diagram of the buffer mechanism of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Main body; 2. Rectifier transformer body; 3. Support plate; 4. Limiting slot; 5. Limiting groove; 6. Limiting slide; 7. Sealing plate; 8. Limiting slider; 9. Locking bolt; 10. Heat sink; 11. Base body; 12. Positioning slide bar; 13. Positioning slider; 14. Reset spring; 15. Connecting plate; 16. Buffer plate; 17. Buffer member. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-5 As shown, the utility model is a dry-type rectifier transformer, comprising a main plate 1 and a rectifier transformer body 2 fixed at the center of the upper end surface of the main plate 1, and further comprising:

[0028] The support plate 3 is fixed on the upper end surface of the main plate 1, and the cross-section of the support plate 3 is a "U"-shaped structure. The outer side of the support plate 3 is slidably connected with a blocking plate 7 for protecting the rectifier transformer body 2; a limiting mechanism is arranged on the outer side of the support plate 3, for connecting and limiting the support plate 3 and the blocking plate 7; the limiting mechanism includes a limiting groove 5, a limiting slide 6 and a limiting slider 8. The limiting groove 5 is opened on the left and right sides of the support plate 3, and the cross-section of the limiting groove 5 is a stepped structure. The limiting slide 6 is opened on the left and right sides of the support plate 3, and the cross-section of the limiting slide 6 is a "T"-shaped structure. The limiting slider 8 is fixed on the inner side of the blocking plate 7, and the limiting slider 8 can slide up and down along the inside of the limiting slide 6 for adjustment. By setting the limiting groove 5 as a stepped structure, the tightness of the connection between the blocking plate 7 and the support plate 3 can be ensured, and dust and water stains can be prevented from entering the support plate 3, which may cause damage to the rectifier transformer body 2. Subsequently, the limiting slider 8 on the inner side of the blocking plate 7 can slide along the inner side of the limiting slide groove 6 to open the position of the blocking plate 7 for subsequent inspection and maintenance.

[0029] Locking bolts 9 are provided at the central positions on the left and right sides of the blocking plate 7, and the locking bolts 9 pass through the blocking plate 7 and are connected to the support plate 3. By passing the locking bolts 9 through the blocking plate 7 and being screwed into the support plate 3, the position of the blocking plate 7 can be limited, thereby avoiding the blocking plate 7 from being offset and ensuring the sealing effect of the connection of the blocking plate 7; heat sinks 10 are symmetrically provided on the left and right sides of the blocking plate 7, and the heat sinks 10 can quickly dissipate heat for the rectifier transformer body 2, thereby avoiding the inconvenience of heat dissipation for the rectifier transformer body 2 and reducing the service life of the rectifier transformer body 2;

[0030] The base body 11 is slidably connected to the outside of the main body plate 1. A buffer member 17 is fixed to the lower end surface of the base body 11. Buffer mechanisms are symmetrically provided on the left and right sides of the base body 11. A limiting slot 4 is fixed to the upper end surface of the main body plate 1, and the limiting slot 4 is connected to the lower end surface of the blocking plate 7. The setting of the limiting slot 4 can ensure the connection effect when the blocking plate 7 is connected to the main body plate 1, and can avoid the tightness of the connection of the blocking plate 7, so as to facilitate subsequent processing; the buffer mechanism includes a positioning slide 12, a positioning slider 13, a connecting plate 15 and a buffer plate 16. The positioning slide 12 is symmetrically fixed to the left and right sides of the base body 11. The positioning slider 13 is slidably connected to the outer surface of the positioning slide 12. The connecting plate 15 is fixed to the center position of the upper end surface of the positioning slider 13. One end of the buffer plate 16 is connected to The central position of the connecting plate 15, and the other end of the buffer plate 16 is connected to the lower end surface of the main plate 1. The upper end of the buffer plate 16 can be connected to the main plate 1. When the main plate 1 moves downward, the positioning sliders 13 at both ends of the connecting plate 15 can slide along the inside of the positioning slide rod 12. A return spring 14 is arranged on the outer surface of the positioning slide rod 12, and one end of the return spring 14 is connected to the positioning slider 13 and cooperates with the return spring 14, which can provide a good buffering effect between the main plate 1 and the base body 11, and can avoid damage to the rectifier transformer body 2 when the main plate 1 is hit.

[0031] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are within the scope of protection of the present invention.

Claims

1. A dry-type rectifier transformer, comprising a main plate (1) and a rectifier transformer body (2) fixed at the center of the upper end surface of the main plate (1), characterized in that: Also includes: The support plate (3) is fixed to the upper end surface of the main plate (1), and the cross section of the support plate (3) is a "U"-shaped structure. The outer side of the support plate (3) is slidably connected to a blocking plate (7) for protecting the rectifier transformer body (2); A limiting mechanism, arranged on the outside of the support plate (3), for connecting and limiting the support plate (3) and the blocking plate (7); The base body (11) is slidably connected to the outer side of the main body plate (1), a buffer member (17) is fixed to the lower end surface of the base body (11), and buffer mechanisms are symmetrically provided on the left and right sides of the base body (11).

2. A dry-type rectifier transformer according to claim 1, characterized in that: The limiting mechanism comprises a limiting groove (5), a limiting chute (6) and a limiting slider (8), wherein the limiting groove (5) is provided on the left and right sides of the support plate (3), and the cross section of the limiting groove (5) is a stepped structure, the limiting chute (6) is provided on the left and right sides of the support plate (3), and the cross section of the limiting chute (6) is a "T"-shaped structure, the limiting slider (8) is fixed on the inner side of the blocking plate (7), and the limiting slider (8) can be slid up and down along the inside of the limiting chute (6) for adjustment.

3. A dry-type rectifier transformer according to claim 2, characterized in that: A limiting slot (4) is fixed to the upper end surface of the main body plate (1), and the limiting slot (4) is engaged with the lower end surface of the blocking plate (7).

4. The dry-type rectifier transformer according to claim 1, characterized in that: Locking bolts (9) are provided at the central positions of the left and right sides of the blocking plate (7), and the locking bolts (9) pass through the blocking plate (7) and are connected to the support plate (3).

5. The dry-type rectifier transformer according to claim 1, characterized in that: Heat sinks (10) are symmetrically provided on the left and right sides of the blocking plate (7).

6. The dry-type rectifier transformer according to claim 1, characterized in that: The buffer mechanism comprises a positioning slide bar (12), a positioning slider (13), a connecting plate (15) and a buffer plate (16); the positioning slide bar (12) is symmetrically fixed on the left and right sides of the base body (11); the positioning slider (13) is slidably engaged with the outer surface of the positioning slide bar (12); the connecting plate (15) is fixed at the central position of the upper end surface of the positioning slider (13); one end of the buffer plate (16) is connected to the central position of the connecting plate (15), and the other end of the buffer plate (16) is connected to the lower end surface of the main body plate (1).

7. The dry-type rectifier transformer according to claim 6, characterized in that: A return spring (14) is arranged on the outer surface of the positioning slide bar (12), and one end of the return spring (14) is connected to the positioning slide bar (13).

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