Fixing device of transformer fan

Abstract

The utility model relates to a fixing device of a transformer fan, which comprises a fastener, a pinch plate, a pressure plate, an anti-vibration pad and a finned radiator, one side of the finned radiator is fixedly connected on the outer wall of a transformer oil tank, the other side of the finned radiator is connected with the fan, the pinch plate is buckled between two adjacent radiating fins on one side of the finned radiator, and the pressure plate is connected with the fan. One end of the fastening piece sequentially penetrates through the buckle plate and the gap between the two cooling fins and is fastened, the other end of the fastening piece sequentially penetrates through the pressing plate, the anti-vibration pad and the draught fan to be fastened on the other side of the finned radiator, and therefore the draught fan is fixed to one side of the finned radiator. Through the fixing device of the fan, the installation mode of the fan is simplified, the working efficiency of the fan is improved, and the production cost is saved; and by additionally arranging a shock pad, noise generated during operation of the fan is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer manufacturing, and in particular relates to a fixing device for a transformer fan. Background Art

[0002] There are usually two ways to arrange the external fan of an air-cooled transformer: one is bottom-blowing and the other is side-blowing. When the fan needs to be arranged side-blowing, the fan needs to be fixed to the two sides close to the plate-type heat sink.

[0003] At present, the common fixing method is to weld the bottom plate on the side wall of the transformer oil tank, and then design and manufacture the fan bracket, the fan is connected to the fan bracket by bolts, and then the whole is connected to the bottom plate by bolts. The disadvantages of this method are that it is necessary to weld the bottom plate and design and manufacture the fan bracket, which is labor-intensive and wastes manpower and material resources. In addition, the fan bracket is easy to interfere with other components on the side wall of the transformer oil tank, and the later disassembly and assembly are cumbersome. Utility Model Content

[0004] In order to further simplify the structure of the transformer fan fixing device, improve the working efficiency of the fan, and reduce the noise when the fan is fixed on the plate-type radiator during operation, the utility model provides a transformer fan fixing device.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model provides a fixing device for a transformer fan, comprising a fastener, a buckle plate, a pressure plate, a vibration-damping pad and a plate-type radiator, wherein one side of the plate-type radiator is fixedly connected to the outer wall of the transformer oil tank, and the other side of the plate-type radiator is connected to the fan, the buckle plate is buckled between two adjacent heat sinks on one side of the plate-type radiator, one end of the fastener sequentially passes through the gap between the buckle plate and the two heat sinks and is fastened, and the other end of the fastener sequentially passes through the pressure plate, the vibration-damping pad and the fan and is fastened on the other side of the plate-type radiator, thereby fixing the fan on one side of the plate-type radiator.

[0007] Further, the fastener includes a matched screw, a nut, a washer and a spring washer.

[0008] Further, the specifications of the screw rod, nut, washer and spring washer are M16.

[0009] Furthermore, the screw, nut, washer and spring washer are all made of hot-dip galvanized material.

[0010] Furthermore, the gusset plate is provided with a long hole with semicircular arcs at both ends for the screw to pass through.

[0011] Furthermore, the cross-section of the gusset plate is U-shaped, and its thickness is greater than or equal to 4 mm.

[0012] Furthermore, the surface of the gusset plate is galvanized.

[0013] Furthermore, the thickness of the pressing plate is greater than or equal to 8 mm.

[0014] Furthermore, the material of the vibration damping pad is an oil-resistant rubber plate, and the thickness thereof is greater than or equal to 30 mm.

[0015] Furthermore, each fan is provided with 4 pinch plates and 4 pressure plates.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects:

[0017] The utility model discloses a fixing device for a transformer fan, comprising a fastener, a buckle plate, a pressure plate, a vibration-damping pad, a fan and a plate-type radiator, wherein the fastener comprises a matching screw, nut, washer and spring washer, and the specification of the fastener is M16, so as to ensure that the fastener has sufficient strength to fix the fan. The fastener is made of hot-dip galvanized material, which effectively prevents the fastener from rusting due to long-term exposure to the air. One side of the plate-type radiator is fixedly connected to the outer wall of the transformer oil tank, and the other side of the plate-type radiator is fixedly connected to the fan. The buckle plate is buckled between two radiating fins on one side of the plate-type radiator, one end of the fastener passes through the gap between the buckle plate and the two radiating fins in turn and is fastened, and the other end of the fastener passes through the pressure plate, the vibration-damping pad and the fan on the other side of the plate-type radiator in turn and is fastened, thereby fixing the fan on one side of the plate-type radiator. Through this fan fixing device, the fan installation method is simple and easy to operate, which saves costs and improves the working efficiency of the fan.

[0018] Furthermore, the gusset plate is provided with a long hole with semicircular arcs at both ends, so that the screw can pass through smoothly and adjust the position.

[0019] Furthermore, the cross-section of the gusset plate is U-shaped, and the thickness is greater than or equal to 4 mm, which increases the force-bearing area while ensuring that the gusset plate does not deform, thereby effectively preventing the heat sink from deforming.

[0020] Furthermore, the surface of the gusset plate is galvanized to prevent the gusset plate from rusting due to long-term exposure to the air.

[0021] Furthermore, the thickness of the pressing plate is greater than or equal to 8 mm, so that the pressing plate can withstand horizontal pressure and vertical shear force.

[0022] Furthermore, the material of the vibration damping pad is an oil-resistant rubber plate with a thickness greater than or equal to 30 mm, which can effectively reduce the noise generated when the fan is running and ensure that the vibration damping pad does not deform after being squeezed by the nut.

[0023] Furthermore, each fan is provided with 4 pinch plates and 4 pressure plates, so that the force on the fan is evenly distributed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view of the fixing device of the transformer fan of the utility model;

[0025] Figure 2 It is a side view of the fixing device of the transformer fan of the utility model;

[0026] Figure 3 Schematic diagram of the gusset plate of the utility model (a is the main view, b is the top view);

[0027] Figure 4 Schematic diagram of the pressing plate of the utility model (a is the main view, b is the top view);

[0028] Figure 5 Schematic diagram of the shock-absorbing pad of the utility model (a is the main view, b is the top view);

[0029] Among them, 1 is a buckle plate, 2 is a screw, 3 is a nut, 4 is a washer, 5 is a spring washer, 6 is a pressure plate, 7 is a vibration damping pad, 8 is a fan, and 9 is a plate-type heat sink. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below with reference to the accompanying drawings:

[0031] As attached Figures 1 to 5 A fixing device for a transformer fan comprises a fastener, a buckle plate 1, a pressure plate 6, a vibration damping pad 7 and a plate-type radiator 9. One side of the plate-type radiator 9 is fixedly connected to the outer wall of the transformer oil tank, and the other side of the plate-type radiator 9 is connected to the fan 8. The buckle plate 1 is buckled between two adjacent heat sinks on one side of the plate-type radiator 9. One end of the fastener passes through the gap between the buckle plate 1 and the two heat sinks in turn and is fastened. The other end of the fastener passes through the pressure plate 6, the vibration damping pad 7 and the fan 8 in turn and is fastened on the other side of the plate-type radiator, thereby fixing the fan 8 on one side of the plate-type radiator 9.

[0032] Specifically, the fastener includes a matched screw rod 2 , a nut 3 , a washer 4 and a spring washer 5 .

[0033] More preferably, the models of the screw rod 2, the nut 3, the washer 4 and the spring washer 5 are M16.

[0034] More preferably, the screw rod 2, the nut 3, the washer 4 and the spring washer 5 are all made of hot-dip galvanized material.

[0035] Specifically, the gusset plate 1 is provided with a long hole with semicircular arcs at both ends for the screw rod 2 to pass through.

[0036] More preferably, the cross section of the gusset plate 1 is U-shaped, and the thickness is greater than or equal to 4 mm.

[0037] More preferably, the surface of the gusset plate 1 is galvanized.

[0038] Specifically, the thickness of the pressing plate 6 is greater than or equal to 8 mm.

[0039] Specifically, the material of the vibration damping pad 7 is an oil-resistant rubber plate with a thickness greater than or equal to 30 mm.

[0040] Specifically, each fan 8 is provided with four pinch plates 1 and four pressure plates 6 .

[0041] like Figure 1 As shown, the buckle plate 1 is buckled between the two heat sinks of the plate-type heat sink 9, one end of the screw rod 2 passes through the buckle plate 1 and then passes through the gap between the heat sinks on one side of the plate-type heat sink 9, and is tightened with a nut 3; a pressure plate 6 and a vibration damping pad 7 are placed on the other side of the plate-type heat sink 9, the other end of the screw rod 2 passes through the pressure plate 6 and the vibration damping pad 7, and finally passes through the fan 8, and then the washer 4 and the spring washer 5 are inserted into the screw rod 2 and tightened with the nut 3, and the fan 8 is stably fixed on one side of the plate-type heat sink 9.

[0042] Preferably, in order to more firmly fix the fan 8 on the side of the plate-type heat sink 9, the gap between two adjacent heat sinks of the plate-type heat sink 9 is narrow in the middle and wide on both sides, preventing the buckle plate 1 from sliding horizontally in the gap between the heat sinks.

Claims

1. A fixing device for a transformer fan, characterized in that: The invention comprises a fastener, a buckle plate (1), a pressure plate (6), a vibration-damping pad (7) and a plate-type radiator (9); one side of the plate-type radiator (9) is fixedly connected to the outer wall of the transformer oil tank; the other side of the plate-type radiator (9) is connected to a fan (8); the buckle plate (1) is buckled between two adjacent radiating fins on one side of the plate-type radiator (9); one end of the fastener passes through the gap between the buckle plate (1) and the two radiating fins in sequence and is fastened; the other end of the fastener passes through the pressure plate (6), the vibration-damping pad (7) and the fan (8) in sequence and is fastened on the other side of the plate-type radiator, thereby fixing the fan (8) on one side of the plate-type radiator (9).

2. The fixing device for the transformer fan according to claim 1, characterized in that: The fastener comprises a matching screw rod (2), a nut (3), a washer (4) and a spring washer (5).

3. The fixing device for transformer fan according to claim 2, characterized in that: The specifications of the screw rod (2), nut (3), washer (4) and spring washer (5) are M16.

4. The fixing device for a transformer fan according to claim 2, characterized in that: The screw rod (2), nut (3), washer (4) and spring washer (5) are all made of hot-dip galvanized materials.

5. The fixing device for transformer fan according to claim 2, characterized in that: The buckle plate (1) is provided with a long hole with semicircular arcs at both ends for the screw rod (2) to pass through.

6. The fixing device for transformer fan according to claim 5, characterized in that: The cross section of the gusset plate (1) is U-shaped, and its thickness is greater than or equal to 4 mm.

7. The fixing device for a transformer fan according to claim 5, characterized in that: The surface of the gusset plate (1) is galvanized.

8. The fixing device for a transformer fan according to claim 1, characterized in that: The thickness of the pressing plate (6) is greater than or equal to 8 mm.

9. The fixing device for a transformer fan according to claim 1, characterized in that: The material of the vibration damping pad (7) is an oil-resistant rubber plate, and the thickness thereof is greater than or equal to 30 mm.

10. The fixing device for a transformer fan according to claim 1, characterized in that: Each fan (8) is provided with four buckle plates (1) and four pressure plates (6).

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