Novel circular transformer
By using the design of a circular magnetic core, multi-layer isolation layer and high-efficiency heat dissipation layer in the transformer, the problems of transformer signal disorder and poor heat dissipation are solved, and better insulation effect and heat dissipation performance are achieved.
Patent Information
- Application Number
- CN202421862425.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-02
AI Technical Summary
Existing transformers are easily disturbed by external signals during operation, resulting in signal disorder and poor heat dissipation effect.
The ring core, main coil, secondary coil, isolation layer, protective layer, support plate and board connection are adopted to improve the insulation effect and heat dissipation performance through multi-layer isolation layer and high-efficiency heat dissipation layer, and reduce electromagnetic wave interference.
It effectively improves the insulation effect of the transformer, weakens electromagnetic wave interference, improves heat dissipation performance, and ensures the cleaning of electronic product signals and the normal operation of the circuit.
Smart Images
Figure CN222883348U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a new type of circular transformer. Background Art
[0002] With the widespread popularity of electronic products, small electronic transformers have become an indispensable component in many electronic products. Since the external input power supply is generally a high-voltage constant power supply, in order to meet the power supply requirements of different electronic components, it is necessary to provide different voltage power supplies to power electronic products or components. For different voltage power supplies, since the input power is constant, the output power needs to change, and transformers are often used to change the voltage. However, there are some defects in the transformers on the market. When working, they are interfered by external signals, or their own signals interfere with the outside, which will affect the signal disorder of electronic products or components and affect the normal operation of electronic circuits. Another common problem in the market is that transformers generate more heat and have poor heat dissipation effects.
[0003] Therefore, in view of the above problems, the existing transformer needs to be further improved. Utility Model Content
[0004] The purpose of the utility model is to overcome the problems of poor insulation effect, easy signal disorder, poor heat dissipation effect, etc. of the existing transformer. Through the rational design of the transformer, the use of toroidal magnetic core, primary coil, secondary coil, isolation layer, protective layer, support plate and plate connector can improve the insulation effect of the transformer, effectively absorb electromagnetic waves and reduce signal interference of electronic products, and better dissipate heat.
[0005] The technical solution of the utility model is as follows:
[0006] A novel circular transformer comprises: a circular magnetic core, a primary coil, a secondary coil, an isolation layer, a protective layer, a support plate and a plate connector, the secondary coil is wound on the circular magnetic core, the isolation layer is arranged on the secondary coil, the primary coil is arranged on the isolation layer, the isolation layer is used to isolate the secondary coil from the primary coil, the protective layer is arranged on the main coil, the support plate is arranged on the protective layer, and the support plates are arranged on the upper and lower sides of the circular magnetic core, and the support plates are stably connected by the plate connector.
[0007] Furthermore, the isolation layer includes a silicon nitride layer, a polyimide layer and a titanium nitride layer, the silicon nitride layer is provided on the lower surface of the polyimide layer, the titanium nitride layer is provided on the upper surface of the polyimide layer, the silicon nitride layer is in contact with the secondary coil, and the titanium nitride layer is in contact with the primary coil.
[0008] Furthermore, the protective layer includes an insulating layer and a heat dissipation layer, the insulating layer is arranged on the main coil, the heat dissipation layer is arranged on the insulating layer, and the heat dissipation layer is used to dissipate heat to the outside.
[0009] Furthermore, the insulating layer is an insulating layer made of polyimide material or an insulating layer made of glass fiber reinforced plastic material.
[0010] Furthermore, the primary coil and the secondary coil are both made of metal copper wire.
[0011] Furthermore, the heat dissipation layer is selected from a graphene layer, a carbon nanotube layer, or a carbon fiber layer.
[0012] Furthermore, a buffer layer is provided on the lower surface of the support plate, and the buffer layer is in contact with the protective layer.
[0013] Furthermore, the buffer layer is a buffer layer made of rubber material or a buffer layer made of silicone material.
[0014] Furthermore, the support plate is a support plate made of metal material or a support plate made of plastic material.
[0015] Furthermore, the plate connecting member is composed of a screw rod and a nut, the screw rod passes through the support plate, the nut is threadedly connected to the screw rod, and the screw rod and the nut cooperate with each other to stabilize the support plate.
[0016] Furthermore, the plate connecting member is a plate connecting member made of metal material or a plate connecting member made of plastic material.
[0017] Furthermore, the middle circular hole of the annular magnetic core is filled with insulating material.
[0018] Furthermore, the insulating material is epoxy resin material.
[0019] Beneficial Effects
[0020] The utility model can improve the insulation effect of the transformer, effectively absorb electromagnetic waves, reduce signal interference of electronic products, and better dissipate heat by rationally designing the transformer, using a toroidal magnetic core, a primary coil, a secondary coil, an isolation layer, a protective layer, a support plate, and a plate connector. The use of a multi-layer isolation layer can improve the isolation effect, and the use of carbon nanotubes, graphene, or carbon fiber deposited on the insulation layer can effectively perform electromagnetic adsorption and improve the dielectric constant, as well as better dissipate heat. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 The utility model is a schematic diagram of a novel circular transformer structure.
[0022] Figure 2The utility model is a schematic diagram of the main coil structure of a new type of circular transformer.
[0023] Figure 3 The utility model is a schematic diagram of the structure of a circular ring core of a new circular transformer.
[0024] Figure 4 The utility model is a schematic diagram of the secondary coil structure of a novel circular transformer.
[0025] Figure 5 The utility model is a schematic diagram of the isolation layer structure of a new circular transformer.
[0026] Figure numbers: 01, protective layer; 02, support plate; 03, plate connector; 04, secondary conductor; 05, primary conductor; 06, heat dissipation layer; 07, isolation layer; 08, secondary coil; 09, toroidal core; 10, primary coil; 91, titanium nitride layer; 92, polyimide layer; 93, silicon nitride layer. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1-Figure 5 As shown, the utility model provides a new type of circular transformer, which includes: a circular magnetic core 09, a primary coil 10, a secondary coil 08, an isolation layer 07, a protective layer 01, a support plate 02 and a plate connector 03. The primary coil 10 and the secondary coil 08 are both made of metal copper wire.
[0029] Among them, a secondary coil 08 is wound on the annular magnetic core 09, an isolation layer 07 is provided on the secondary coil 08, a main coil 10 is provided on the isolation layer 07, the isolation layer 07 is used to isolate the secondary coil 08 and the main coil 10, the secondary coil 08 has a secondary wire 04 extending outward, the main coil 10 has a primary wire 05 extending outward, a protective layer 01 is provided on the main coil 10, a support plate 02 is provided on the protective layer 01, and the support plates 02 are arranged on the upper and lower sides of the annular magnetic core 09, and the support plates 02 are stably connected by plate connectors 03;
[0030] The isolation layer 07 includes a silicon nitride layer 93, a polyimide layer 92 and a titanium nitride layer 91. The lower surface of the polyimide layer 92 is provided with a silicon nitride layer 93, and the upper surface of the polyimide layer 92 is provided with a titanium nitride layer 91. The silicon nitride layer 93 is in contact with the secondary coil 08, and the titanium nitride layer 91 is in contact with the primary coil 10. The protective layer 01 includes an insulating layer and a heat dissipation layer 06. The insulating layer is provided on the primary coil 10, and the heat dissipation layer 06 is provided on the insulating layer. The heat dissipation layer 06 is used to dissipate heat outward. The insulating layer is selected from an insulating layer of polyimide material or an insulating layer of glass fiber reinforced plastic material. The heat dissipation layer 06 is selected from a graphene layer, a carbon nanotube layer or a carbon fiber layer.
[0031] Among them, a buffer layer is provided on the lower surface of the support plate 02, and the buffer layer is in contact with the protective layer 01, and the buffer layer is selected from a rubber material buffer layer or a silicone material buffer layer; the support plate 02 is selected from a metal material support plate or a plastic material support plate; the plate connector 03 is composed of a screw and a nut, the screw passes through the support plate 02, the nut is threadedly connected to the screw, and the screw and the nut cooperate with each other to stabilize the support plate 02, and the plate connector 03 is selected from a metal material plate connector or a plastic material plate connector; the middle circular hole of the annular magnetic core 09 is filled with insulating material, and the insulating material is selected from epoxy resin material.
[0032] The specific implementation mode of the utility model is as follows: for the assembly of the transformer, a toroidal magnetic core is selected, and then a secondary coil is wound on it, leaving a wire for external electrical connection to connect the secondary wire, a polyimide layer with a silicon nitride layer and a titanium nitride layer is wrapped on the secondary coil, and then the main coil is wound, leaving a wire for external electrical connection to connect the main wire, a protective layer with a heat dissipation layer is wrapped on the main coil, a support plate is placed on the lower surface of the assembled protective layer, and then a plate connecting piece is inserted from the outside of the support plate into the inner cavity of the toroidal magnetic core, epoxy resin is poured into the inner cavity, and after the epoxy resin solidifies, another support plate is placed on it and the plate connecting piece is fixed; the isolation layer here is a titanium nitride layer (30 μm thick) deposited on the upper surface of the polyimide film (100 μm thick) and a silicon nitride layer (50 μm thick) deposited on the lower surface; the protective layer here is a carbon fiber layer with a thickness of 500 nm deposited on the insulating layer.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A new type of circular transformer, characterized in that: The circular transformer includes: a circular magnetic core, a primary coil, a secondary coil, an isolation layer, a protective layer, a support plate and a plate connector. The secondary coil is wound on the circular magnetic core, the isolation layer is provided on the secondary coil, the primary coil is provided on the isolation layer, the isolation layer is used to isolate the secondary coil from the primary coil, the protective layer is provided on the main coil, the support plate is provided on the protective layer, and the support plates are arranged on the upper and lower sides of the circular magnetic core, and the support plates are stably connected by the plate connector.
2. A novel circular transformer according to claim 1, characterized in that: The isolation layer includes a silicon nitride layer, a polyimide layer and a titanium nitride layer. The silicon nitride layer is disposed on the lower surface of the polyimide layer, and the titanium nitride layer is disposed on the upper surface of the polyimide layer. The silicon nitride layer contacts the secondary coil, and the titanium nitride layer contacts the primary coil.
3. A novel circular transformer according to claim 1, characterized in that: The protective layer includes an insulating layer and a heat dissipation layer. The insulating layer is arranged on the main coil. The heat dissipation layer is arranged on the insulating layer. The heat dissipation layer is used to dissipate heat to the outside.
4. A novel circular transformer according to claim 3, characterized in that: The insulating layer is made of polyimide or glass fiber reinforced plastic.
5. A novel circular transformer according to claim 1, characterized in that: The primary coil and the secondary coil are both made of metal copper wire.
6. A novel circular transformer according to claim 3, characterized in that: The heat dissipation layer is selected from a graphene layer, a carbon nanotube layer, or a carbon fiber layer.
7. A novel circular transformer according to claim 1, characterized in that: A buffer layer is provided on the lower surface of the support plate, and the buffer layer is in contact with the protective layer.
8. A novel circular transformer according to claim 7, characterized in that: The buffer layer is a rubber buffer layer or a silicone buffer layer.
9. A novel circular transformer according to claim 8, characterized in that: The support plate is made of metal or plastic.
10. A novel circular transformer according to claim 1, characterized in that: The plate connecting member is composed of a screw rod and a nut. The screw rod passes through the support plate. The nut is threadedly connected to the screw rod. The screw rod and the nut cooperate with each other to stabilize the support plate.