Quick-assembly type positioning buckle dry-type transformer iron core

Abstract

The utility model relates to the technical field of dry-type transformer iron cores, in particular to a fast-assembly type positioning buckle dry-type transformer iron core which comprises two side iron core columns and a middle iron core column, matched iron yokes are arranged on the end sides of the side iron core columns and the middle iron core column, inserting grooves are formed in the two end faces of each iron yoke, and the inserting grooves are matched with the inserting grooves. The two ends of each side iron core column are each provided with a clamping piece inserted into the corresponding inserting groove in a sliding mode, the two ends of each iron yoke are each provided with a first pin shaft and a second pin shaft which extend into the corresponding inserting groove in a sliding mode, the outer side of each first pin shaft is matched with the side edge of the corresponding clamping piece in a locking mode, and each second pin shaft penetrates through the corresponding clamping piece. According to the utility model, the purpose of rapidly assembling the iron core can be realized, the installation efficiency is increased, the installation difficulty is reduced, and the stability of the installed iron core is ensured.

Description

A quick-installation positioning snap-on dry-type transformer core Technical Field

[0001] This utility model relates to the field of dry-type transformer core technology, specifically a quick-installation positioning snap-on dry-type transformer core. Background Technology

[0002] Dry-type transformers are widely used in power systems, industrial production, and many other fields. In the assembly process of dry-type transformers, the installation of the core is a crucial step. Traditional dry-type transformer core installation typically uses bolting or welding, but these methods have several drawbacks. Firstly, bolting requires tightening a large number of bolts one by one, a cumbersome and time-consuming process with low installation efficiency. Secondly, welding not only demands high skill levels from the installation environment and operators, but the high temperatures generated during welding can also affect the core's performance, and subsequent disassembly and maintenance are extremely inconvenient. Furthermore, traditional installation methods are not precise enough in terms of positioning, easily leading to core installation deviations, affecting the overall performance and operational stability of the transformer. Therefore, there is an urgent need to design a dry-type transformer core structure that enables rapid installation and accurate positioning. Summary of the Invention

[0003] The purpose of this invention is to provide a quick-installation positioning snap-on dry-type transformer core to solve the problems mentioned in the background art.

[0004] The technical solution of this utility model is: a quick-installation positioning snap-on dry-type transformer core, including two side core columns and one middle core column. Each side core column and the middle core column is provided with a matching yoke. Each end face of the yoke is provided with a slot. Each end face of the side core column is provided with a snap-fit ​​member that slides into the slot. Each end face of the yoke is provided with a first pin and a second pin that slide into the slot. The outer side of the first pin is locked with the side of the snap-fit ​​member, and the second pin passes through the snap-fit ​​member.

[0005] The effect achieved by the above components is as follows: the snap-fit ​​of the side core column is aligned with the slot of the yoke and inserted, and then the first and second pins are slid into the yoke and extended into the slot. The first pin and the side of the snap-fit ​​form a lock, and the second pin passes through the snap-fit ​​for fixation. This realizes the quick positioning and connection of the core column and the yoke, replacing the traditional cumbersome bolt fastening or welding method. This achieves the purpose of quick core assembly, increases installation efficiency, reduces installation difficulty, and ensures the stability of the core after installation.

[0006] Preferably, the snap-fit ​​component includes a protrusion connected to the end of the side core post, and the protrusion has a pin hole adapted to the second pin.

[0007] The effect achieved by the above components is that the second pin can be accurately inserted into the pin hole. The positioning and limiting effect of the pin hole on the second pin makes the second pin pass through the protrusion more accurately and firmly, further enhancing the connection stability between the side iron core column and the iron yoke.

[0008] Preferably, the top of the protrusion is provided with a limiting groove that engages with the outer wall of the first pin.

[0009] The effect achieved by the above components is as follows: when the first pin is slidably inserted into the yoke and extends into the slot, the outer wall of the first pin can be engaged in the limiting groove. The limiting groove limits the first pin from the top, preventing the first pin from shifting in the horizontal direction. This, in conjunction with the fixing method of the second pin through the snap-fit, further enhances the firmness of the connection between the side core column and the yoke, achieves the purpose of preventing the connecting components from loosening, and improves the stability and reliability of the core structure.

[0010] Preferably, both the first pin and the second pin have annular grooves on the same side, and S-shaped fasteners are engaged in the two grooves.

[0011] The effect achieved by the above components is as follows: after the first and second pins are slid into the yoke and fixed with the snap-fit, the S-type snap-fit ​​is snapped into the two slots. The S-type snap-fit ​​can restrict the movement of the first and second pins in the axial direction, prevent the first and second pins from sliding out of the yoke, achieve the purpose of preventing the pins from loosening and falling off, increase the stability and reliability of the core connection structure, and ensure the safety of the transformer during operation.

[0012] Preferably, both ends of the central iron core column are provided with tapered inclined surfaces, and the outer side of the iron yoke is provided with an assembly groove that matches the tapered inclined surfaces.

[0013] The effect achieved by the above components is that the tapered slopes at both ends of the central iron core column can be quickly and accurately inserted into the assembly slot of the yoke. By utilizing the guiding effect of the tapered structure, the initial accurate positioning of the central iron core column and the yoke is achieved, which facilitates the subsequent fixing operation and also enhances the tightness of the connection between the central iron core column and the yoke.

[0014] This utility model provides a quick-installation positioning snap-on dry-type transformer core through improvements, which has the following improvements and advantages compared with the prior art:

[0015] Firstly, this utility model aligns the snap-fit ​​component of the side core column with the slot of the yoke and inserts it. Then, the first and second pins are slidably inserted into the yoke and extend into the slot. The first pin locks with the side of the snap-fit ​​component, and the second pin passes through the snap-fit ​​component for fixation. This achieves rapid positioning and connection of the core column and the yoke, replacing the traditional cumbersome bolt tightening or welding method. This achieves the purpose of rapid core assembly, increases installation efficiency, reduces installation difficulty, and ensures the stability of the core after installation.

[0016] Secondly, this utility model can restrict the movement of the first and second pins along the axial direction through the S-shaped fastener, preventing the first and second pins from slipping out of the yoke, thus achieving the purpose of preventing the pins from loosening and falling off, increasing the stability and reliability of the core connection structure, and ensuring the safety of the transformer during operation. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 is a three-dimensional structural diagram of this utility model;

[0019] Figure 2 is a schematic diagram of the assembled three-dimensional structure of the iron yoke in this utility model;

[0020] Figure 3 is a schematic diagram of the assembly structure of the first pin in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Side core post; 2. Middle core post; 3. Yoke; 4. First pin; 5. Second pin; 6. S-shaped fastener; 7. Slot; 8. Slot; 9. Connecting piece; 91. Protrusion; 92. Pin hole; 93. Limiting groove. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides an improved quick-installation positioning snap-on dry-type transformer core. The technical solution of this utility model is as follows:

[0025] In embodiments of this utility model, as shown in Figures 1-3, a quick-installation positioning snap-on dry-type transformer core includes two side core columns 1 and one central core column 2. Both the side core columns 1 and the central core column 2 have matching yokes 3 at their ends. The central core column 2 has tapered inclined surfaces at both ends. The outer side of the yoke 3 has an assembly groove that matches the tapered inclined surface. The tapered inclined surfaces at both ends of the central core column 2 can be quickly and accurately inserted into the assembly groove of the yoke 3. Utilizing the guiding effect of the tapered structure, the core is quickly and accurately installed. The initial precise positioning of the core post 2 and the yoke 3 was achieved. Slots 8 are provided on both ends of the yoke 3. Both ends of the side core post 1 are provided with locking members 9 that slide into the slots 8. A first pin 4 and a second pin 5 extending into the slots 8 are slidably inserted on both ends of the yoke 3. The outer side of the first pin 4 locks into the side of the locking member 9. The second pin 5 passes through the locking member 9. The locking member 9 includes a protrusion 91 that connects to the end of the side core post 1. A pin hole 92 adapted to the second pin 5 is provided on the protrusion 91. The second pin 5 can be accurately inserted into the pin hole 92. The pin hole 92 provides positioning and limiting for the second pin 5, making its passage through the protrusion 91 more precise and secure. The top of the protrusion 91 has a limiting groove 93 that engages with the outer wall of the first pin 4. When the first pin 4 slides into the yoke 3 and extends into the slot 8, the outer wall of the first pin 4 engages with the limiting groove 93. The limiting groove 93 limits the first pin 4 from the top, preventing it from moving horizontally. When displacement occurs, annular grooves 7 are provided on the same side ends of the first pin 4 and the second pin 5. S-shaped fasteners 6 are engaged in the two grooves 7. After the first pin 4 and the second pin 5 are slid into the yoke 3 and fixed with the fasteners 9, the S-shaped fasteners 6 are engaged in the two grooves 7. The S-shaped fasteners 6 can restrict the movement of the first pin 4 and the second pin 5 in the axial direction and prevent the first pin 4 and the second pin 5 from sliding out of the yoke 3, thus achieving the purpose of preventing the pins from loosening and falling off.

[0026] The working principle of the quick-installation positioning snap-fit ​​dry-type transformer core provided by this utility model is as follows: The snap-fit ​​piece 9 of the side core column 1 is aligned with the slot 8 of the yoke 3 and inserted. Then, the first pin 4 and the second pin 5 are slidably inserted into the yoke 3 and extended into the slot 8. The second pin 5 can be accurately inserted into the pin hole 92. The pin hole 92 is used to position and limit the second pin 5. The limiting groove 93 limits the first pin 4 from the top to prevent the first pin 4 from displacing in the horizontal direction. After the first pin 4 and the second pin 5 are slidably inserted into the yoke 3 and fixed with the snap-fit ​​piece 9, the S-shaped snap-fit ​​piece 6 is snapped into the two slots 7. The S-shaped snap-fit ​​piece 6 can limit the movement of the first pin 4 and the second pin 5 in the axial direction and prevent the first pin 4 and the second pin 5 from sliding out of the yoke 3, thus achieving the purpose of quick positioning and connection between the core column and the yoke 3.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-installation positioning snap-on dry-type transformer core, comprising two side core columns (1) and one middle core column (2), wherein each of the side core columns (1) and the middle core column (2) is provided with a matching yoke (3) at its end, characterized in that: Slots (8) are provided on both ends of the iron yoke (3), and snap-fit ​​pieces (9) are provided on both ends of the side iron core column (1) and are slidably inserted into the slots (8). A first pin (4) and a second pin (5) extending into the slots (8) are slidably inserted on both ends of the iron yoke (3). The outer side of the first pin (4) is locked to the side of the snap-fit ​​piece (9), and the second pin (5) passes through the snap-fit ​​piece (9).

2. The quick-installation positioning snap-on dry-type transformer core according to claim 1, characterized in that: The snap-fit ​​component (9) includes a protrusion (91) connected to the end side of the side core post (1), and the protrusion (91) has a pin hole (92) adapted to the second pin (5).

3. The quick-installation positioning snap-on dry-type transformer core according to claim 2, characterized in that: The top of the protrusion (91) is provided with a limiting groove (93) that engages with the outer side wall of the first pin (4).

4. The fast-assembled positioning buckle dry-type transformer core according to claim 1, characterized in that: Both the first pin (4) and the second pin (5) have annular grooves (7) on the same side, and S-shaped fasteners (6) are engaged in the two grooves (7).

5. The quick-installation positioning snap-on dry-type transformer core according to claim 1, characterized in that: Both ends of the central iron core column (2) are provided with conical inclined surfaces, and the outer side of the iron yoke (3) is provided with an assembly groove that matches the conical inclined surface.

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