Electroplating power supply air-cooled transformer

Abstract

The utility model relates to the technical field of electroplating power supplies, and discloses an electroplating power supply air-cooled transformer which comprises a transformer shell, the transformer shell is square and is provided with a round cavity arranged in a penetrating mode, a magnetic core is arranged in the round cavity in a sleeved mode, two center pole strips are connected in the magnetic core in a sleeved mode, one end of each center pole strip is connected with a secondary plate, and the other end of each center pole strip is connected with a secondary plate. The two secondary plates are respectively fixed on the end surfaces of the orifices at the two ends of the circular cavity, and the other end of the central pole strip extends out of the transformer shell; the secondary plates are electrically connected with the transformer shell, and each central pole strip is electrically connected with the corresponding secondary plate; a plurality of protruding fins are formed on the outer wall of the transformer shell, and the heat dissipation area and the heat dissipation effect can be improved through the heat dissipation fins, so that the heat dissipation requirement of the transformer can be met in an air cooling environment, a circulating cooling water system can be saved, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electroplating power supply technology, and in particular to an air-cooled transformer for electroplating power supply. Background Technology

[0002] Most existing electroplating power supply transformers are water-cooled, with the transformer casing fixed to a corresponding water-cooling plate. This water-cooling plate requires an external cooling water circulation system. However, in some applications, the electroplating power supply requires relatively low power, and the number of power supplies used is also small. Therefore, adding an extra cooling water circulation system undoubtedly increases production and operating costs. Application number CN201610578801.5 discloses an air-cooled transformer, including a transformer base, an iron core, and coil windings. The coil windings are wrapped around the iron core, and both the iron core and coil windings are located inside the transformer base. The transformer base includes a first base and a second base connected to the first base. This invention adds an air-cooled base to the iron core based on the traditional transformer. This base has air ducts around its perimeter, and heat is dissipated by a fan. Although the above application uses air cooling, the curved design of the air ducts results in poor heat dissipation for the transformer. Utility Model Content

[0003] The purpose of this utility model is to provide an air-cooled transformer for electroplating power supplies. By setting several heat dissipation fins on the outside of the casing, the heat dissipation area can be effectively increased, thereby improving the heat dissipation effect, meeting the needs of air-cooled environments, and reducing production and usage costs.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] An electroplating power supply air-cooled transformer includes a transformer housing. The transformer housing is square and has a through-hole circular cavity. A magnetic core is fitted inside the circular cavity. Two center poles are fitted inside the magnetic core. One end of each center pole is connected to a secondary plate. The two secondary plates are fixed to the end faces of the two end holes of the circular cavity. The other end of each center pole extends out of the transformer housing. The transformer housing and center poles are generally made of aluminum, and the secondary plates are generally made of copper. The secondary plates and the transformer housing are electrically connected. Each center pole is electrically connected to a corresponding secondary plate. The magnetic core is equivalent to a primary coil, and the center poles are equivalent to secondary coils.

[0006] The outer wall of the transformer housing is formed with several raised fins. The heat dissipation fins can increase the heat dissipation area and heat dissipation effect, so as to meet the heat dissipation requirements of the transformer even in an air-cooled environment, save the circulating cooling water system, and reduce the operating cost.

[0007] Furthermore, the cross-section of the central pole strip is semi-circular;

[0008] The secondary plate has a semi-circular hole formed for the center electrode bar to pass through, and the semi-circular hole does not contact the corresponding center electrode bar.

[0009] Furthermore, an insulating plate is sandwiched between the two center poles, which effectively separates the two center poles and prevents them from being electrically connected.

[0010] Furthermore, the insulating board is an epoxy board.

[0011] Furthermore, the end of the central pole bar is formed with a threaded hole.

[0012] Furthermore, the cavity formed by the inner wall of the circular cavity, the two central pole strips, the magnetic core, and the two secondary plates is filled with potting compound.

[0013] Furthermore, one of the secondary boards has a notch for installing the lead wires of the magnetic core and for potting.

[0014] The outstanding effect of this utility model is:

[0015] Compared with existing technologies, by setting several heat dissipation fins on the outside of the casing, the heat dissipation area can be effectively increased, thereby improving the heat dissipation effect and meeting the needs of air-cooled environments. It does not require an additional cooling water circulation system, which can reduce production and usage costs.

[0016] The transformer casing is square with a circular inner cavity, and the central pole bar is separate from the casing, which facilitates the processing of the casing.

[0017] The heat dissipation base and aluminum strip are made of aluminum, which can effectively ensure heat dissipation performance and is also economical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front view of the present invention;

[0020] Figure 3 for Figure 2 A sectional view of AA;

[0021] Figure 4 for Figure 3 A sectional view of BB;

[0022] Figure 5 This is a schematic diagram illustrating the working principle of this utility model.

[0023] Attached reference numerals: 1. Transformer housing; 2. Magnetic core; 3. Center pole bar; 4. Secondary board; 5. Insulating board; 6. Encapsulating compound;

[0024] 101. Circular cavity; 102. Fin;

[0025] 401. Semicircular hole; 402. Notch. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0027] The following is for reference Figures 1 to 5 The embodiments of this utility model are described below:

[0028] An electroplating power supply air-cooled transformer includes a transformer housing 1. A through-hole circular cavity 101 is formed on the transformer housing 1. A magnetic core 2 is housed within the circular cavity 101. Two center pole strips 3 are connected within the magnetic core 2. One end of each center pole strip 3 is connected to a secondary plate 4. The two secondary plates 4 are respectively fixed to the end faces of the two end openings of the circular cavity 101. The other end of each center pole strip 3 extends outside the transformer housing 1. The transformer housing 1 and the center pole strips 3 are generally made of aluminum, and the secondary plates are generally made of copper. The secondary plates and the transformer housing are electrically connected, and each center pole strip is electrically connected to a corresponding secondary plate. The magnetic core 2 corresponds to the primary coil, and the center pole strips correspond to the secondary coils. The transformer housing is square, and the circular cavity and the center pole strips are separate parts of the transformer housing, facilitating the processing of the transformer housing. Its working principle is as follows: Figure 5 As shown, during operation, the leads of the magnetic core are connected to the external AC power supply, and each of the center poles is connected to a synchronous rectifier tube via a wire. The magnetic core is equivalent to... Figure 5 The coil on the left side shown has a center pole bar that is equivalent to... Figure 5 The coil on the right side is shown, and the transformer casing acts as a tap.

[0029] The outer wall of the transformer housing 1 is formed with several protruding fins 102. The grooves between the fins are connected to the direction of the cooling air flow. The heat generated by the transformer during operation is dissipated to the transformer housing and fins. The fins can increase the heat dissipation area and thus increase the heat dissipation effect. At the same time, the side wall of the transformer housing without fins can also be fixed on the water cooling plate.

[0030] Preferably, the cross-section of the central pole strip 3 is semi-circular;

[0031] The secondary plate 4 has a semi-circular hole 401 formed on it for the center electrode strip 3 to pass through. The semi-circular hole 401 does not contact the corresponding center electrode strip 3.

[0032] An insulating plate 5 is sandwiched between the two center poles 3. The insulating plate 5 can be an epoxy board. The insulating plate 5 can effectively separate the two center poles 3 and effectively prevent them from being electrically connected.

[0033] The end of the center electrode 3 is formed with a threaded hole 301. One end of the center electrode is fixedly connected to the corresponding secondary plate by a screw. The other end of the center electrode is connected to the output wire, and the output wire is connected to a synchronous rectifier tube.

[0034] Preferably, the cavity formed by the inner wall of the circular cavity 101, the two central pole strips 3, the magnetic core 2, and the two secondary plates 4 is filled with potting compound 6. The potting compound can protect the magnetic core and the central pole strips, and at the same time fix the relative positional relationship between the magnetic core and the central pole strips.

[0035] One of the secondary boards 4 has a notch 402, which is used for the installation of the lead wire 21 of the magnetic core 2 and for potting.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. An air-cooled transformer for electroplating power supplies, comprising a transformer housing (1), characterized in that: The transformer shell (1) is formed with a circular cavity (101) penetratingly arranged, the circular cavity (101) is sleeved with a magnetic core (2), the magnetic core (2) is sleeved with two center pole strips (3), one end of each center pole strip (3) is connected with a secondary plate (4), the two secondary plates (4) are fixed on the two end orifice end faces of the circular cavity (101) respectively, and the other end of the center pole strip (3) extends out of the transformer shell (1). The outer wall of the transformer shell (1) is formed with a plurality of protruding fins (102).

2. The air-cooled transformer of claim 1, wherein: The cross section of the center pole strip (3) is in a semicircular shape. The secondary plate (4) is formed with a semicircular hole (401) for the center pole strip (3) to pass through.

3. The air-cooled transformer of claim 2, wherein: The two center pole strips (3) are clamped with an insulating plate (5).

4. The air-cooled transformer of claim 3, wherein: The insulating plate (5) is an epoxy plate.

5. The air-cooled transformer of claim 1, wherein: The end of the center pole strip (3) is formed with a threaded hole (301).

6. The air-cooled transformer of claim 1, wherein: The inner wall of the circular cavity (101), the two center pole strips (3), the magnetic core (2) and the two secondary plates (4) are surrounded to form a cavity, and the cavity is filled with potting glue (6).

7. The air-cooled transformer of claim 6, wherein: One of the secondary plates (4) is provided with an opening (402).

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