Reactor with new insulation structure

Abstract

The utility model relates to the technical field of insulating reactors, and discloses a reactor of a novel insulating structure, including an I-type silicon steel block, an insulating coil, and an E-type silicon steel block. The insulating coil is clamped in the E-type silicon steel block, and the insulating coil includes an internal coil and an external insulating layer. The insulating layer includes mica paper wrapped on the coil internally, and the mica paper is coated with polyester film on the outside. The device wraps mica paper on the outside of the coil and is coated with polyester film as an insulating layer. The use of mica paper has lower costs, and the mica paper has good heat dissipation and low heat generation during use, which can reduce the use of silicon steel sheets and reduce the volume of the overall device. In addition, the polyester film is coated on the outside of the mica paper to avoid the mica paper from breaking, and the insulation effect is better and the service life is longer. When the device is powered on and used, the power-on resonance will generate noise. The use of gap gaskets can reduce the noise generated in the middle, and the two ends of the gap gaskets are extended and grooves are provided, which makes production and installation more convenient.

Description

Technical Field

[0001] The utility model relates to the field of insulating reactors, in particular to a reactor with a novel insulating structure. Background Art

[0002] The coils in the existing reactors are generally wrapped with aramid paper for insulation. The cost of using aramid paper is high, and the use of aramid paper for insulation results in poor heat dissipation and high heat generation during the use of the device. In order to improve the heat dissipation efficiency, the device is made larger in size, which increases the production cost.

[0003] The patent application with publication number CN 209168915U discloses a new insulation structure of a class H reactor, including a coil winding and a silicon steel sheet group of the class H reactor. The first vertical section and the second vertical section of the coil winding are respectively wrapped with punched insulating paper sheets and then placed in the first vertical slot and the second vertical slot of the silicon steel sheet group to form a new insulation structure.

[0004] The prior art uses punch-cut insulating paper sheets to wrap the coil insulation, which has poor heat dissipation, high heat generation, a relatively large device volume, and a high cost for using the punch-cut insulating paper sheets.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide a reactor with a novel insulating structure, which uses mica paper at a lower cost, and during use, the mica paper has good heat dissipation and low heat generation, which can reduce the use of silicon steel sheets and the volume of the overall device. In addition, a polyester film is coated on the outside of the mica paper to prevent the mica paper from breaking, thereby achieving better insulation effect and longer service life.

[0007] The technical solution adopted by the utility model is:

[0008] A reactor with a novel insulation structure comprises an I-type silicon steel block, an insulation coil and an E-type silicon steel block. The insulation coil is clamped in the E-type silicon steel block. The insulation coil comprises an internal coil and an external insulation layer. The insulation layer comprises mica paper wrapped around the coil, and the mica paper is coated with polyester film.

[0009] By adopting the above structure, mica paper is wrapped outside the coil and coated with polyester film as an insulating layer, the cost of using mica paper is lower, and the mica paper has good heat dissipation and low heat generation during use, which can reduce the use of silicon steel sheets and the volume of the overall device. In addition, coating the polyester film on the outside of the mica paper can prevent the mica paper from breaking, thereby improving the insulation effect and extending the service life.

[0010] Preferably, the coil is wrapped with mica paper, and interfaces at both ends of the mica paper are located on the bottom surface of the coil.

[0011] By adopting the above structure, the connection is placed at the bottom of the coil, avoiding being placed at the side, which causes more wear.

[0012] Preferably, the mica paper is wrapped in two layers at the bottom of the coil, and the two side ends overlap and fit the bottom surface of the coil.

[0013] By adopting the above structure, the bottom connection structure of the coil is more stable.

[0014] Preferably, the E-shaped silicon steel block is welded by a plurality of identical E-shaped silicon steel sheets, the welds are located at the bottom and the center of the top surface, and the bottom of the E-shaped silicon steel block is connected to a fixed connector.

[0015] By adopting the above structure, the overall welding operation of the device is convenient and the appearance is beautiful.

[0016] Preferably, the I-type silicon steel block is welded by multiple identical I-shaped silicon steel sheets, and the weld is located on the top surface; the E-type silicon steel block and the I-type silicon steel block are matched and welded up and down, and the weld is located at the external connection on both sides.

[0017] By adopting the above structure, the overall welding operation of the I-type silicon steel block is convenient, the appearance is beautiful, and the connection is welded and fixed on the outside, which is easy to operate.

[0018] Preferably, a gap gasket is provided between the E-type silicon steel block and the I-type silicon steel block.

[0019] By adopting the above structure, when the device is powered on and used, power-on resonance will generate noise. The use of gap gaskets can reduce the noise generated between the E-type silicon steel block and the I-type silicon steel block.

[0020] Preferably, both ends of the gap gasket extend out of the bottom of the I-shaped silicon steel block, and a groove is provided in the center of the end.

[0021] By adopting the above structure, the production and installation of the gap gasket are more convenient.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The utility model wraps mica paper outside the coil and covers it with polyester film as an insulating layer. The use of mica paper has lower cost, and the mica paper has good heat dissipation and low heat generation during use, which can reduce the use of silicon steel sheets and the volume of the overall device. In addition, the polyester film is wrapped outside the mica paper to avoid the mica paper from breaking, so the insulation effect is better and the service life is longer.

[0024] 2. The utility model device places the connection of the wrapped mica paper at the bottom of the coil to avoid placing it on the side, thereby reducing the amount of wear, and the mica paper is connected and stacked at the bottom of the coil, so the structure is more stable.

[0025] 3. When the device of the utility model is powered on, power-on resonance will generate noise. Using a gap gasket between the E-type silicon steel block and the I-type silicon steel block can reduce the noise generated in the middle, and the two ends of the gap gasket are extended and grooves are provided, which makes production and installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 Practical Figure 1 The structural diagram of the insulating coil at a in the middle;

[0029] Figure 3 This is a structural diagram of the insulating coil of the utility model;

[0030] Figure 4 This is an exploded structural diagram of the utility model.

[0031] Among them: 1. I-type silicon steel block; 2. gap gasket; 3. insulating coil; 4. E-type silicon steel block; 5. coil; 6. mica paper; 7. polyester film; 8. fixed connector; 9. weld. DETAILED DESCRIPTION

[0032] like Figure 1-4 As shown, the reactor of the novel insulation structure includes an I-type silicon steel block 1, an insulating coil 3, and an E-type silicon steel block 4. The insulating coil 3 is clamped in the E-type silicon steel block 4. The insulating coil 3 includes an internal coil 5 and an external insulating layer. The insulating layer includes mica paper 6 wrapped on the coil 5, and the mica paper 6 is coated with a polyester film 7 on the outside. The device wraps the mica paper 6 on the outside of the coil 5 and the polyester film 7 as the insulating layer. The use of the mica paper 6 is lower in cost, and the mica paper 6 has good heat dissipation and low heat generation during use, which can reduce the use of silicon steel sheets and reduce the volume of the overall device. In addition, the polyester film 7 is coated on the outside of the mica paper 6 to prevent the mica paper 6 from breaking, and the insulation effect is better and the service life is longer.

[0033] The mica paper 6 wraps the coil 5, and the interfaces at both ends of the mica paper 6 are located on the bottom of the coil 5. The mica paper 6 is wrapped in two layers at the bottom of the coil 5, and the ends on both sides overlap and fit the bottom of the coil 5. The device places the connection of the wrapped mica paper 6 at the bottom of the coil 5, avoiding placing it on the side to reduce wear, and the mica paper 6 is connected and stacked at the bottom of the coil 5, and the structure is more stable.

[0034] The E-shaped silicon steel block 4 is welded by multiple identical E-shaped silicon steel sheets, and the weld 9 is located at the bottom and the center of the top surface. The bottom of the E-shaped silicon steel block 4 is connected to a fixed connector 8. The I-shaped silicon steel block 1 is welded by multiple identical I-shaped silicon steel sheets, and the weld 9 is located at the top surface. The E-shaped silicon steel block 4 and the I-shaped silicon steel block 1 are welded up and down, and the weld 9 is located at the external connection of both sides.

[0035] A gap gasket 2 is provided between the E-type silicon steel block 4 and the I-type silicon steel block 1. Both ends of the gap gasket 2 extend out of the bottom of the I-type silicon steel block 1, and there is a groove in the center of the end. When the device is powered on, power-on resonance will generate noise. Using the gap gasket 2 between the E-type silicon steel block 4 and the I-type silicon steel block 1 can reduce the noise generated in the middle, and the gap gasket 2 is extended at both ends and grooves are provided, which makes production and installation more convenient.

[0036] When assembling the device, first wrap the coil with mica paper 6 and coat it with polyester film 7 on the outside, then clamp and fix the insulating coil 3 with the E-type silicon steel block 4, put the gap gasket 2 in the center of the E-type silicon steel block 4, then weld the I-type silicon steel block 1 with the E-type silicon steel block 4, and weld the fixed connecting piece 8 at the bottom of the E-type silicon steel block 4. After the device is assembled, it can be put into use.

[0037] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should be included in the protection scope determined by the claims of the present invention.

Claims

1. A reactor with a new insulation structure, comprising an I-type silicon steel block, an insulating coil, and an E-type silicon steel block, characterized in that: The insulating coil is clamped in the E-shaped silicon steel block. The insulating coil includes an inner coil and an outer insulating layer. The insulating layer includes mica paper wrapped inside the coil, and the mica paper is coated with polyester film outside.

2. The reactor of the novel insulation structure according to claim 1 is characterized in that: The mica paper wraps the coil, and interfaces at both ends of the mica paper are located on the bottom surface of the coil.

3. The reactor of the novel insulation structure according to claim 2 is characterized in that: The mica paper is coated with two layers at the bottom of the coil, and the ends at both sides overlap and adhere to the bottom surface of the coil.

4. The reactor of the novel insulation structure according to claim 1 is characterized in that: The E-shaped silicon steel block is welded by a plurality of identical E-shaped silicon steel sheets, the welds are located at the bottom and the center of the top surface, and the bottom of the E-shaped silicon steel block is connected to a fixed connector.

5. The reactor of the novel insulation structure according to claim 1 is characterized in that: The I-type silicon steel block is welded by multiple identical I-shaped silicon steel sheets, and the weld is located on the top surface. The E-type silicon steel block and the I-type silicon steel block are matched and welded up and down, and the weld is located at the external connection on both sides.

6. The reactor with a novel insulation structure according to claim 1 is characterized in that: A gap gasket is provided between the E-type silicon steel block and the I-type silicon steel block.

7. The reactor with a novel insulation structure according to claim 6 is characterized in that: The two ends of the gap gasket extend out of the bottom of the I-shaped silicon steel block, and a groove is provided in the center of the end.

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