High-power high-frequency transformer without framework structure

Abstract

The utility model discloses a high-power high-frequency transformer without a framework structure. The high-power high-frequency transformer without the framework structure comprises a magnetic core and a coil, the coil is installed on the magnetic core, the coil comprises a first connecting block and a second connecting block, an inserting strip is fixedly arranged on the first connecting block, the second connecting block is installed at the upper end of the inserting strip, a through hole is formed in the connecting position of the second connecting block and the inserting strip, and the inserting strip is fixedly connected with the second connecting block through the through hole. The coil comprises a winding reel and an enameled wire wound on the winding reel, and the winding reel is detachably connected with the second connecting block. According to the high-power high-frequency transformer without the framework structure, the magnetic core and the coil are assembled, so that workers can conveniently install the coil of the transformer on the magnetic core, compared with an existing integrated magnetic core, operation is more convenient when the transformer is produced, and production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a high-power high-frequency transformer with a frameless structure. Background Art

[0002] A transformer is an important part of the power system, undertaking key functions such as voltage conversion, current adjustment, and impedance matching, and is widely used in various links of power generation, power transmission, and power distribution.

[0003] The prior art provides a high-power high-frequency transformer with a frameless structure. The high-power high-frequency transformer with a frameless structure includes: a magnetic core, and a support bar is wrapped around the edge of the magnetic core; a coil, the coil is arranged around the magnetic core and the support bar, and an interval space is formed between the coil and the magnetic core. The above solution constitutes a frameless high-frequency transformer through an insulating material layer, a support bar, a magnetic core, and a coil. Among them, the support bar is as high as the transformer, which can form an overall support for the magnetic core, and at the same time form an interval space between the coil and the magnetic core for heat dissipation, so as to achieve the purpose of reducing the external dimensions of the transformer product, reducing the manufacturing cost, and improving the heat dissipation capacity.

[0004] The coil of the above device is wound on the support bar, and the support bar is installed on the magnetic core. The magnetic core is a closed structure, and it is troublesome to wind the coil on the closed magnetic core during production.

[0005] Therefore, it is necessary to provide a high-power high-frequency transformer with a frameless structure to solve the above technical problems. Summary of the Utility Model

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high-power high-frequency transformer with a frameless structure, which can install the coil on the magnetic core by an assembly method.

[0007] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0008] A high-power high-frequency transformer with a frameless structure includes: a magnetic core and a coil. The coil is installed on the magnetic core. The coil includes a first connection block and a second connection block. An insertion bar is fixedly arranged on the first connection block. The second connection block is installed at the upper end of the insertion bar. A through hole is arranged at the connection between the second connection block and the insertion bar. The coil includes a winding cylinder and an enameled wire wound around the winding cylinder. The winding cylinder is detachably connected to the second connection block.

[0009] Preferably, a plurality of through holes are arranged on the winding cylinder.

[0010] Preferably, the insertion bar is composed of a plurality of intermittently distributed metal strips, and the metal strips are located on a virtual circular ring on the periphery of the insertion bar.

[0011] Preferably, a plurality of cushion strips are vertically arranged on the surface of the winding cylinder.

[0012] Preferably, a plurality of gaskets are arranged in a direction perpendicular to the surface of the cushion strip, and the gaskets are arranged at equal intervals.

[0013] Preferably, both the cushion strip and the gasket are made of metal.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) By assembling the magnetic core and the coil, the utility model facilitates the installation of the coil of the transformer on the magnetic core by the staff. Compared with the existing integral magnetic core, the operation is more convenient when producing the transformer, and the production efficiency can be improved.

[0016] (2) By providing through holes on the winding cylinder, the utility model is beneficial to the release of heat on the winding cylinder from the through holes, and the heat dissipation is faster.

[0017] (3) By inwardly converging the upper ends of the metal strips and then inserting the winding cylinder on the insertion strips, the installation is more convenient. In addition, the outer side of the metal strips is the winding cylinder, and the heat on the winding cylinder can be released into the air through the intervals between the metal strips, improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a high-power high-frequency transformer with a frameless structure provided by the utility model;

[0019] Figure 2 is a schematic structural diagram of a high-power high-frequency transformer with a frameless structure provided by the utility model;

[0020] Figure 3 is a schematic structural diagram of a high-power high-frequency transformer with a frameless structure provided by the utility model.

[0021] Among them, the names corresponding to the reference numerals are: 101, magnetic core; 102, coil; 103, winding cylinder; 104, cushion strip; 105, gasket; 106, first connecting block; 107, second connecting block; 108, insertion strip. DETAILED DESCRIPTION OF THE INVENTION

[0022] The following further describes the utility model with reference to the drawings and embodiments. The implementation manners of the utility model include but are not limited to the following embodiments.

[0023] The transformer works based on the principle of electromagnetic induction and mainly consists of a primary coil, a secondary coil, and an iron core. When alternating current passes through the primary coil, an alternating magnetic field is generated in the iron core, and then a voltage is induced in the secondary coil. By changing the turns ratio of the primary and secondary coils, the voltage can be increased or decreased to meet different power requirements. The iron core of the transformer given in the prior art is an integral iron core, and the periphery of this iron core is closed in a ring shape. Winding several turns of coils on an iron core of this shape is actually a rather cumbersome task. Currently, the common production modes are manual and mechanical. The manual production efficiency is relatively low, but the mechanical cost is high. Therefore, for small-scale production at present, the method of manually winding coils is mostly used. The present utility model uses a combined type to replace the traditional integral iron core, which can eliminate the influence of the iron core on the winding wire and facilitate processing.

[0024] First Embodiment:

[0025] As Figures 1-3 shown, the high-power high-frequency transformer with a frameless structure provided by the present utility model includes a magnetic core 101 and a coil 102. The coil 102 is installed on the magnetic core 101. Specifically, the coil 102 includes a first connection block 106 and a second connection block 107. An insertion bar 108 is fixedly provided on the first connection block 106. The second connection block 107 is installed at the upper end of the insertion bar 108. A through hole is provided at the connection between the second connection block 107 and the insertion bar 108 to facilitate heat dissipation from the through hole. The coil 102 includes a winding cylinder 103 and an enameled wire wound around the winding cylinder 103. The winding cylinder 103 is in a cylindrical shape, and the insertion bar 108 is also in a cylindrical shape. The inner diameter of the winding cylinder 103 is the same as the outer diameter of the insertion bar 108. Therefore, the winding cylinder 103 can be inserted onto the insertion bar 108. At the same time, an annular groove with the same outer diameter as the insertion bar 108 is provided at the upper end of the second connection block 107. When in use, first, the winding cylinder 103 wound with the enameled wire is installed onto the insertion bar 108, and then the insertion bar 108 is inserted into the groove on the second connection block 107, and the two parts are bonded and fixed with glue. In this way, the coil 102 is installed on the magnetic core 101.

[0026] By setting the magnetic core 101 and the coil 102 in an assembled manner, it is convenient for the staff to install the coil 102 of the transformer on the magnetic core 101. Compared with the existing integral magnetic core 101, the operation is more convenient when producing the transformer, and the production efficiency can be improved.

[0027] Second Embodiment:

[0028] As Figure 2As shown, a plurality of through holes are provided on the winding drum 103. When alternating current is applied to the coil 102 of the transformer, an alternating magnetic field is generated around the coil 102. In this process, internal energy is generated and a large amount of heat is released. By providing through holes on the winding drum 103, it is convenient to release the heat on the winding drum 103 from the through holes, and the heat dissipation is faster.

[0029] Third embodiment:

[0030] like Figure 2 As shown, the insert 108 is composed of a plurality of intermittently distributed metal strips. The metal strips are located on a virtual ring around the insert 108. During installation, the upper ends of the metal strips are folded inward, and then the winding drum 103 is inserted into the insert 108, which makes installation more convenient. In addition, the winding drum 103 is located on the outside of the metal strips. The heat on the winding drum 103 can be released into the air through the gaps between the metal strips, thereby improving the heat dissipation effect.

[0031] Fourth embodiment:

[0032] like Figure 3 As shown, a plurality of pads 104 are vertically provided on the surface of the bobbin 103. When winding the wire, the coil 102 is directly wound on the upper end of the pads 104. The pads 104 suspend the enameled wire on the bobbin 103. Therefore, air can flow in the gap between the bobbin 103 and the innermost enameled wire, and the heat generated by the coil 102 can be transferred to the air through the gap.

[0033] Fifth embodiment:

[0034] like Figure 3 As shown, a plurality of gaskets 105 are provided perpendicular to the surface direction of the gasket strip 104. Both the gasket strip 104 and the gasket 105 are made of metal. The gaskets 105 are arranged at equal intervals. When the enameled wire is wound on the winding drum 103, the gaskets 105 separate the enameled wire vertically. When the enameled wire is wound, there are gaps on both sides of the gasket 105. Each gasket 105 has a corresponding gap. These gaps can constitute channels for heat transfer, which is beneficial to heat dissipation of the transformer.

[0035] Working principle: First, install the winding drum 103 with enameled wire on the insertion bar 108, then insert the insertion bar 108 into the groove on the second connecting block 107, and use glue to glue the two parts together. In this way, the coil 102 is installed on the magnetic core 101.

[0036] The above embodiment is only one of the preferred implementation methods of the present invention and should not be used to limit the scope of protection of the present invention. Any changes or modifications that have no substantive meaning made to the main design concept and spirit of the present invention, as long as the technical problems they solve are still consistent with the present invention, should be included in the scope of protection of the present invention.

Claims

1. A high-power high-frequency transformer with a frameless structure, characterized in that Comprising: A magnetic core (101) and a coil (102), the coil (102) being mounted on the magnetic core (101), the coil (102) including a first connection block (106) and a second connection block (107), an insertion bar (108) being fixedly provided on the first connection block (106), the second connection block (107) being mounted at the upper end of the insertion bar (108), a through hole being provided at the connection between the second connection block (107) and the insertion bar (108), the coil (102) including a winding cylinder (103) and an enameled wire wound around the winding cylinder (103), the winding cylinder (103) being detachably connected to the second connection block (107).

2. The high-power high-frequency transformer with a frameless structure according to claim 1, wherein A plurality of through holes are provided on the winding cylinder (103).

3. The high-power high-frequency transformer with a frameless structure according to claim 1, characterized in that The insertion bar (108) is composed of a plurality of intermittently distributed metal strips, and the metal strips are located on a virtual circular ring on the periphery of the insertion bar (108).

4. The high-power high-frequency transformer with a frameless structure according to claim 3, characterized in that, A plurality of cushion strips (104) are vertically provided on the surface of the winding cylinder (103).

5. The high-power high-frequency transformer with a frameless structure according to claim 4, characterized in that A plurality of gaskets (105) are provided in a direction perpendicular to the surface of the cushion strip (104), and the gaskets (105) are equidistantly arranged.

6. The high-power high-frequency transformer with a frameless structure according to claim 5, characterized in that, Both the cushion strip (104) and the gasket (105) are made of metal.

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