Dry-type three-dimensional roll-core transformer

Abstract

The utility model discloses a dry type three-dimensional roll iron core transformer, including transformer body, shell and radiating fin, transformer body is fixedly connected in the interior of shell, shell is triangular setting, radiating fin all is provided on the triangular face of shell, the inner side of radiating fin is fixedly connected with slider, and the slider is fixed in the shell. The two sliding blocks are symmetrically arranged about the central axis of the cooling fin, and sliding grooves used in cooperation with the sliding blocks are formed in the surface of the shell. According to the utility model, by arranging the modularized radiating fins, the radiating fins can be singly replaced, so that the replacement cost of the radiating fins is reduced, and the problems that in the actual use process, the equipment adopts an integrated structure of the shell and the radiating fins, when an operator needs to replace the radiating fins, the whole shell needs to be replaced, and the replacement cost is reduced are solved. And the radiating fins on one side cannot be replaced independently, so that the later maintenance cost is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, and particularly relates to a dry-type three-dimensional wound core transformer. Background Art

[0002] The three-dimensional wound core transformer is an energy-saving power transformer, which reforms the laminated magnetic circuit structure and three-phase layout of the traditional power transformer, making the product performance more optimized, such as the three-phase magnetic circuit is completely symmetrical, the power saving effect is remarkable, the noise is greatly reduced, the heat dissipation and overload capacity are stronger, the structure is compact and the volume is small, etc. It is widely used in industrial, agricultural, transportation, urban community and other fields.

[0003] According to the publication number: CN217035348U, a non-crystalline alloy three-dimensional wound core dry-type transformer is disclosed, which includes: a box body; a transformer body, which is arranged in the box body, and the transformer body includes a three-dimensional wound core dry-type transformer and a wire group. The three-dimensional wound core dry-type transformer is in a three-dimensional triangular shape, and the wire group is wound around the core column of the three-dimensional wound core dry-type transformer; a heat dissipation member, which is in a cylindrical structure, the heat dissipation member is arranged in the center of the three-dimensional wound core dry-type transformer, both ends of the heat dissipation member penetrate through the box body to form an air flow channel in the center of the box body, and the outer cylindrical wall of the heat dissipation member is provided with first fins, and a spiral heat dissipation plate is arranged inside the heat dissipation member. The utility model can achieve good heat dissipation function and has the characteristic of isolating the iron core and the wire group from the outside world.

[0004] Based on the retrieval of the above patent and the combination with the equipment in the prior art, it is found that when the above equipment is applied, although it can solve the problem that the contact between dust, water vapor, etc. in the air and the iron core and winding of the non-crystalline alloy dry-type transformer will affect the normal operation of the transformer.

[0005] However, in the actual use process, the above equipment adopts an integrated structure of the outer shell and the heat sink. When the operator needs to replace the heat sink, the entire outer shell needs to be replaced, and a single-sided heat sink cannot be replaced, thus increasing the later maintenance cost. Summary of the Invention

[0006] To solve the problems raised in the above background art, the purpose of the present utility model is to provide a dry-type three-dimensional wound core transformer, which has the advantage of being able to replace a single heat sink, and solves the problem that in the actual use process, the above equipment adopts an integrated structure of the outer shell and the heat sink. When the operator needs to replace the heat sink, the entire outer shell needs to be replaced, and a single-sided heat sink cannot be replaced, thus increasing the later maintenance cost.

[0007] To achieve the above object, the present utility model provides the following technical solution: A dry-type three-dimensional wound core transformer, which includes a transformer body, a housing, and heat sinks. The transformer body is fixedly connected inside the housing. The housing is triangularly arranged. The heat sinks are all arranged on the triangular faces of the housing. A sliding block is fixedly connected to the inner side of the heat sink. There are two sliding blocks, which are symmetrically arranged about the central axis of the heat sink. A sliding groove for cooperating with the sliding block is provided on the surface of the housing. The heat sink is slidably connected to the housing through the sliding block and the sliding groove. Fixed components are provided at the top and bottom inside the heat sink and the housing.

[0008] Preferably, the fixed component includes a threaded hole. The threaded holes are provided at the top and bottom inside the heat sink and the housing. A screw is threadedly connected inside the threaded hole.

[0009] Preferably, a positioning plate is fixedly connected to the bottom inside the sliding groove. The positioning plate is used in cooperation with the fixed component.

[0010] Preferably, a screwing block is fixedly connected to the front end of the screw. The screwing block is in a butterfly shape.

[0011] Preferably, an anti-slip pad is pasted on the inner side of the screwing block. The material of the anti-slip pad is natural rubber.

[0012] Preferably, oil grooves are provided on both sides of the sliding block. The oil grooves are through grooves.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By providing modular heat sinks, the present utility model enables the heat sinks to be replaced individually, thus reducing the replacement cost of the heat sinks. It solves the problem that in the actual use process, the above equipment adopts an integrated structure of the housing and the heat sinks. When the operator needs to replace the heat sink, the entire housing needs to be replaced, and a single-sided heat sink cannot be replaced, thereby increasing the later maintenance cost. It achieves the effect of replacing a single heat sink.

[0015] 2. By providing a fixed component, after the heat sink is slidably installed on the housing through the sliding block and the sliding groove, the operator screws the screw into the threaded groove. By continuously tightening the screw by the operator, the heat sink can be closely attached to the housing, thus ensuring the heat dissipation effect of the heat sink.

[0016] 3. In the present utility model, by providing a positioning plate, when the heat sink drives the sliding block to slide and install inside the sliding groove, the positioning plate blocks the sliding block. After the blocking is completed, the threaded holes in the heat sink are exactly aligned with the threaded holes in the housing, enabling the operator to conveniently screw in the screw rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of another perspective of the present utility model;

[0019] Figure 3 is an exploded structural schematic diagram of the present utility model.

[0020] In the figure: 1, transformer body; 2, housing; 3, heat sink; 4, sliding block; 5, sliding groove; 6, fixing component; 61, threaded hole; 62, screw rod; 7, positioning plate; 8, turning block; 9, anti-slip pad; 10, oil groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1 to 3 shown, a dry three-dimensional wound core transformer provided by the present utility model includes a transformer body 1, a housing 2, and a heat sink 3. The transformer body 1 is fixedly connected inside the housing 2. The housing 2 is triangularly arranged. The heat sinks 3 are all arranged on the triangular surfaces of the housing 2. A sliding block 4 is fixedly connected to the inner side of the heat sink 3. There are two sliding blocks 4 and they are symmetrically arranged about the central axis of the heat sink 3. A sliding groove 5 for cooperating with the sliding block 4 is formed on the surface of the housing 2. The heat sink 3 is slidably connected to the housing 2 through the sliding block 4 and the sliding groove 5. Fixing components 6 are provided at the top and bottom inside the heat sink 3 and the housing 2.

[0023] Referring to Figure 3 , the fixing component 6 includes a threaded hole 61. The threaded holes 61 are formed at the top and bottom inside the heat sink 3 and the housing 2, and a screw rod 62 is threadedly connected inside the threaded hole 61.

[0024] As a technical optimization scheme of the utility model, by setting a fixing component 6, when the heat sink 3 is slidably installed with the outer shell 2 through the sliding block 4 and the sliding groove 5, the operator screws the screw 62 into the interior of the threaded groove, and the operator continuously tightens the screw 62, so that the heat sink 3 can fit tightly with the outer shell 2, thereby ensuring the heat dissipation effect of the heat sink 3.

[0025] refer to Figure 3 A positioning plate 7 is fixedly connected to the bottom of the sliding groove 5 , and the positioning plate 7 is used in conjunction with the fixing component 6 .

[0026] As a technical optimization solution of the utility model, by setting a positioning plate 7, when the heat sink 3 drives the sliding block 4 to slide and install inside the sliding groove 5, the positioning plate 7 blocks the sliding block 4. When the blocking is completed, the threaded hole 61 in the heat sink 3 is just aligned with the threaded hole 61 in the outer shell 2, so that the operator can easily screw in the screw 62.

[0027] refer to Figure 3 The front end of the screw rod 62 is fixedly connected with a twisting block 8, and the twisting block 8 is butterfly-shaped.

[0028] As a technical optimization solution of the utility model, a butterfly-shaped twisting block 8 is adopted to fix the twisting block 8 and the screw rod 62, so that the twisting block 8 can provide a fulcrum for the operator to twist the screw rod 62, so that the operator can save more effort when twisting the screw rod 62.

[0029] refer to Figure 3 A non-slip pad 9 is pasted on the inner side of the twisting block 8, and the material of the non-slip pad 9 is natural rubber.

[0030] As a technical optimization solution of the utility model, by providing an anti-skid pad 9, the anti-skid pad 9 can increase the friction between the twisting block 8 and the heat sink 3, thereby preventing the screw 62 from loosening due to vibration generated by the operation of the transformer body 1.

[0031] refer to Figure 3 Oil grooves 10 are provided on both sides of the sliding block 4, and the oil grooves 10 are arranged through.

[0032] As a technical optimization solution of the utility model, by setting an oil tank 10, the operator fills lubricating oil into the oil tank 10, so that the sliding block 4 can move more smoothly in the sliding groove 5, avoiding the sliding block 4 from getting stuck when moving in the sliding groove 5.

[0033] Working principle and usage process of the present utility model: When in use, when the operator needs to replace a single heat sink 3, the operator reversely rotates the screwing block 8, and then the screwing block 8 drives the screw rod 62 to rotate reversely, so that the screw rod 62 disengages from the threaded hole 61, and thus the screw rod 62 no longer fixes the heat sink 3. Then, the operator pulls up the heat sink to be replaced, so that the heat sink drives the sliding block 4 to disengage from the inside of the sliding groove 5, so that the operator can conveniently disassemble the heat sink. Then, the operator picks up a new heat sink and aligns the sliding block 4 on the heat sink with the sliding groove 5. Then, the operator presses down the heat sink 3, so that the heat sink 3 drives the sliding block 4 to slide into the sliding groove 5, so that the heat sink 3 is simply fixed. When the heat sink 3 drives the sliding block 4 to slide and install inside the sliding groove 5, the positioning plate 7 blocks the sliding block 4. After the blocking is completed, at this time, the threaded hole 61 in the heat sink 3 just aligns with the threaded hole 61 in the housing 2. The operator screws the screw rod 62 into the inside of the threaded groove. By continuously tightening the screw rod 62 by the operator, the heat sink 3 can be closely attached to the housing 2, thereby ensuring the convenience of the operator to install the heat sink 3 and at the same time ensuring the heat dissipation effect of the heat sink 3.

[0034] In summary: For this dry-type three-dimensional wound core transformer, by setting the modular heat sink 3, the heat sink 3 can be replaced individually, thereby reducing the replacement cost of the heat sink 3 and solving the problem that in the actual use process, the above-mentioned equipment uses an integrated structure of the housing and the heat sink. When the operator needs to replace the heat sink, the entire housing needs to be replaced, and a single heat sink cannot be replaced, thus increasing the later maintenance cost.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A dry-type three-dimensional wound core transformer, comprising a transformer body (1), a housing (2) and heat sinks (3), characterized in that: The transformer body (1) is fixedly connected inside the housing (2). The housing (2) is arranged in a triangular shape. The heat sinks (3) are all arranged on the triangular faces of the housing (2). A sliding block (4) is fixedly connected to the inner side of the heat sink (3). There are two sliding blocks (4) which are symmetrically arranged about the central axis of the heat sink (3). A sliding groove (5) for cooperating with the sliding block (4) is formed on the surface of the housing (2). The heat sink (3) is slidably connected to the housing (2) through the sliding block (4) and the sliding groove (5). Fixing components (6) are provided at the top and bottom inside the heat sink (3) and the housing (2).

2. The dry-type three-dimensional wound-core transformer according to claim 1, wherein: The fixing component (6) includes a threaded hole (61). The threaded hole (61) is formed at the top and bottom inside the heat sink (3) and the housing (2). A screw (62) is threadedly connected inside the threaded hole (61).

3. A dry-type three-dimensional wound core transformer according to claim 1, characterized in that: A positioning plate (7) is fixedly connected to the bottom inside the sliding groove (5). The positioning plate (7) is used in cooperation with the fixing component (6).

4. A dry-type three-dimensional wound-core transformer according to claim 2, wherein: A screwing block (8) is fixedly connected to the front end of the screw (62). The screwing block (8) is in a butterfly shape.

5. The dry-type three-dimensional wound-core transformer according to claim 4, characterized in that: An anti-slip pad (9) is pasted on the inner side of the screwing block (8). The material of the anti-slip pad (9) is natural rubber.

6. The dry-type three-dimensional wound-core transformer according to claim 1, wherein: Oil grooves (10) are formed on both sides of the sliding block (4). The oil grooves (10) are arranged in a penetrating manner.

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