Transformer with fixing assembly

Abstract

The utility model discloses a transformer with a fixing assembly, which comprises clamping pieces, a transformer body and the fixing assembly used for fixing the plurality of clamping pieces and the transformer body, the fixing assembly comprises a positioning plate and a cushion block, and the positioning plate and the cushion block are fixed through a wood pin. The positioning plate is welded with the clamping piece, and the cushion block is arranged on the device body. According to the transformer with the fixing assembly, the structure of the fixing assembly is simple, and the number of metal components is small. The novel wood cushion block fully utilizes stress analysis and adopts a slope structure, so that under the condition that the structural strength is met, the operation is simple, materials are saved, the electric field distribution of the transformer is improved, and the stray loss of a metal component is reduced.

Description

Technical Field

[0001] The utility model relates to the field of transformer body compression, in particular to a transformer with a fixing component. Background Art

[0002] The transformer body 2 and the clamp 1 must be reliably fixed. In the prior art, a pressure bolt type body 2 compression structure is generally used. Figure 1 As shown, the first nut 303 is welded to the clamp 1 through the support plate 301, and the pressure plate of the device body 2 is tightened by adjusting the screw 302. The second nut 304 is used for locking. The pressure cup 305 increases the pressure-bearing surface of the end of the screw 302 to prevent the local stress of the pressure plate of the device body 2 from exceeding the allowable stress value of the insulating material and damaging the material during a short circuit.

[0003] However, this existing structure has significant drawbacks. First, the metal components occupy a considerable amount of space from the force-bearing fulcrum of clamp 1, making it inconvenient to arrange the live parts (leads, bushing equalizing balls, etc.) within the transformer. Second, the metal components, such as screw 302, first nut 303, and second nut 304, have significant sharp corners and burrs, which can easily lead to localized electric field concentration in the electric field.

[0004] In summary, the pressing mechanism between the transformer body 2 and the clamp 1 in the prior art occupies a large space and has low safety. Utility Model Content

[0005] The present invention overcomes the shortcomings of the prior art in that the pressing mechanism occupies a large space and has low safety, and provides a transformer with a fixing assembly. To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a transformer with a fixing assembly, which includes: a clamp, a body, and a fixing assembly for fixing a plurality of clamps and the body;

[0006] The fixing assembly includes a positioning plate and a cushion block, and the positioning plate and the cushion block are fixed by a wooden pin; the positioning plate is welded to the clamp, and the cushion block is arranged on the device body.

[0007] In a preferred embodiment of the present invention, a chamfer is provided at one end of the positioning plate close to the clamp, and the diameter of the chamfer is 9-11 mm.

[0008] In a preferred embodiment of the present invention, the positioning plate is provided with at least two through holes, the opening direction of the through holes is toward the cushion block; the cushion block is provided with blind holes corresponding to the through holes, and the wooden pins are arranged in the through holes and the blind holes.

[0009] In a preferred embodiment of the present invention, the wooden pin is bonded to the spacer.

[0010] In a preferred embodiment of the present invention, the cushion block includes a first section and a second section disposed above the first section, and the first section and the second section are integrally formed.

[0011] In a preferred embodiment of the present invention, the end of the second section away from the clamp is in a sloped surface, and the length of the second section increases gradually along the direction of the device body toward the direction of the positioning plate.

[0012] In a preferred embodiment of the present invention, the longitudinal section of the second section is a right-angled trapezoid, and the angle between the hypotenuse and the bottom edge of the pad is 30°-60°.

[0013] In a preferred embodiment of the present invention, the height of the first section is 9-11 mm.

[0014] In a preferred embodiment of the present invention, the top surface of the wooden pin and the top surface of the positioning plate are located on the same horizontal plane.

[0015] The present invention solves the defects in the background technology and has the following beneficial effects:

[0016] The utility model discloses a transformer with a fixing assembly, which has a simple structure and few metal components. Because the new wooden spacer fully utilizes the force analysis and adopts a slope structure, it is easy to operate and saves materials while meeting the structural strength requirements. It also helps to improve the electric field distribution of the transformer and reduce the stray loss of metal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0018] Figure 1 Schematic diagram of the compression mechanism between the transformer body and the clamp in the prior art;

[0019] Figure 2 This is a schematic diagram of a fixing assembly of a transformer with a fixing assembly according to one embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of a positioning plate in a transformer with a fixing assembly according to an embodiment of the present utility model;

[0021] Figure 4 The figure is a schematic diagram of the structure of a spacer block in a transformer with a fixing assembly according to one embodiment of the present utility model.

[0022] The reference numerals are as follows:

[0023] 1-clamp; 2-body; 301-support plate; 302-screw; 303-nut; 304-nut; 305-pressing bowl; 401-positioning plate; 402-wooden pin; 403-spacer; 4011-through hole; 4031-first section; 4032-second section; 4033-blind hole. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner. Therefore, they only show the structures related to the present invention. It should be noted that, unless there is a conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0027] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0028] like Figure 2 As shown, the utility model discloses a transformer with a fixing assembly, which includes: a clamp 1, a body 2 and a fixing assembly for fixing a plurality of clamps 1 and the body 2.

[0029] Specifically, the fixing assembly includes a positioning plate 401 and a pad 403, and the positioning plate 401 and the pad 403 are fixed by a wooden pin 402; the positioning plate 401 is welded to the clamp 1, and the pad 403 is arranged on the body 2, the pad 403 is a wooden pad 403, and the positioning plate 401 is a metal positioning plate 401.

[0030] like Figure 3 As shown, the positioning plate 401 is provided with a chamfer at one end close to the clamp 1, and the diameter of the chamfer is 9-11 mm. This can increase the cross-sectional area of ​​the weld between the positioning plate 401 and the clamp 1, ensuring that the mechanical strength after welding meets the stress requirements.

[0031] Reference Figure 3 The positioning plate 401 is provided with at least two through holes 4011, and the opening direction of the through holes 4011 faces the pad 403. Figure 2 and Figure 4 As shown, the spacer block 403 is provided with a blind hole 4033 corresponding to the through hole 4011, and the wooden pin 402 is disposed within the through hole 4011 and the blind hole 4033. The top surface of the wooden pin 402 is coplanar with the top surface of the positioning plate 401. The wooden pin 402 is bonded to the spacer block 403. Specifically, the lower half of the wooden pin 402 is coated with electrical adhesive and fully embedded in the blind hole 4033 of the spacer block 403, achieving adhesion. When the upper half of the wooden pin 402 aligns with the through hole 4011, positioning is complete.

[0032] Reference Figure 4 As shown, the pad 403 includes a first section 4031 and a second section 4032 disposed above the first section 4031 , and the first section 4031 and the second section 4032 are integrally formed.

[0033] The height of the first section 4031 is 9-11 mm. In a preferred embodiment of the present invention, the height of the first section 4031 is 10 mm.

[0034] The end of the second section 4032 away from the clamp 1 is sloped, and the length of the second section 4032 increases along the direction of the body 2 toward the positioning plate 401. The longitudinal cross-section of the second section 4032 is a right-angled trapezoid, and the angle between the hypotenuse and the base of the pad 403 is 30°-60° to meet the required force.

[0035] The utility model discloses a transformer with a fixing assembly, which has a simple structure and few metal components. Because the new wooden spacer 403 fully utilizes force analysis and adopts a slope structure, it is easy to operate and saves materials while meeting structural strength requirements. It also helps improve the electric field distribution of the transformer and reduce stray losses in metal components.

[0036] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A transformer with a fixed assembly, characterized in that: include: A clamp, a body, and a fixing assembly for fixing a plurality of clamps and the body; The fixing assembly includes a positioning plate and a cushion block, and the positioning plate and the cushion block are fixed by a wooden pin; the positioning plate is welded to the clamp, and the cushion block is arranged on the device body.

2. The transformer with a fixing assembly according to claim 1, characterized in that: One end of the positioning plate close to the clamp is provided with a chamfer, and the diameter of the chamfer is 9-11 mm.

3. The transformer with a fixing assembly according to claim 1, characterized in that: The positioning plate is provided with at least two through holes, and the opening directions of the through holes are toward the cushion block; the cushion block is provided with blind holes corresponding to the through holes, and the wooden pins are arranged in the through holes and the blind holes.

4. The transformer with a fixing assembly according to claim 1, characterized in that: The wooden pin is bonded to the spacer block.

5. The transformer with a fixing assembly according to claim 1, characterized in that: The pad includes a first section and a second section arranged above the first section, and the first section and the second section are integrally formed.

6. The transformer with a fixing assembly according to claim 5, characterized in that: An end of the second section away from the clamp is in a sloped surface, and a length of the second section increases gradually along the direction of the device body toward the direction of the positioning plate.

7. The transformer with a fixing assembly according to claim 5, characterized in that: The longitudinal section of the second section is a right-angled trapezoid, and the angle between the hypotenuse and the base of the pad is 30°-60°.

8. The transformer with a fixing assembly according to claim 5, characterized in that: The height of the first section is 9-11 mm.

9. The transformer with a fixing assembly according to claim 1, characterized in that: The top surface of the wooden pin and the top surface of the positioning plate are located on the same horizontal plane.

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