Transformer and electronic device

Abstract

The utility model provides a kind of transformer and electronic equipment, transformer includes: insulating base, insulating base includes seat body and cover plate, cover plate is located at the side of seat body, and form insulating passage with seat body;Wiring terminal, the first part of wiring terminal is located in insulating passage, the second part of wiring terminal is exposed to insulating base;Wherein, seat body and cover plate are integrated structure, reduce production procedure while, reduce the process complexity of transformer production, it is favorable to improve process efficiency while, reduce the production cost of transformer, ensure insulating safety distance.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a transformer and electronic equipment. Background Technology

[0002] Currently, in the manufacturing process of LC transformers in related technologies, the terminals are typically glued to the base and baked to secure them. The leads are then threaded through protective sleeves and soldered to the terminals. Finally, adhesive is applied to the terminals for protection, and the finished product is formed after the adhesive has fully cured. However, this manufacturing process is complex, resulting in low efficiency and poor insulation reliability. Utility Model Content

[0003] This invention provides a transformer and electronic device to solve the problems of low process efficiency and poor insulation reliability in the prior art when insulating the leads of transformers from components on the other side of the circuit board.

[0004] This utility model provides a transformer, comprising: An insulating base, comprising a base body and a cover plate, wherein the cover plate is disposed on one side of the base body and forms an insulating channel with the base body; A terminal block, wherein a first part of the terminal block is disposed within the insulating channel, and a second part of the terminal block is exposed outside the insulating base; The seat body and the cover plate are an integral structure.

[0005] According to the present invention, a transformer is provided in which there are multiple cover plates, and the multiple cover plates respectively form multiple insulating channels with the base body; The number of terminals is multiple, with the first part of each terminal located within an insulating channel and the second part of each terminal exposed outside the insulating base; Among them, multiple cover plates are integrally formed with the seat body.

[0006] According to the present invention, a transformer comprising a plurality of terminals includes at least a first terminal and a second terminal, wherein the first terminal and the second terminal are respectively located on the same side of the insulating base, and the transformer further includes: A first winding is disposed on the insulating base. The first winding includes a first lead and a second lead. The first lead is connected to the first terminal, and the second lead is connected to the second terminal.

[0007] According to the present invention, a transformer is provided, wherein the plurality of terminals further include a third terminal and a fourth terminal, the third terminal and the fourth terminal being located on the same side of the insulating base, and the transformer further includes: The second winding is disposed on the insulating base. The second winding includes a third lead and a fourth lead. The third lead is connected to the third terminal, and the fourth lead is connected to the fourth terminal.

[0008] According to the present invention, a transformer is provided in which the first winding is a primary winding and the second winding is a secondary winding.

[0009] According to the present invention, a transformer is provided in which the base body is provided with an adhesive dispensing groove, the adhesive dispensing groove and the wiring terminals are respectively located on the same side of the base body, and the transformer further includes: The adhesive component is disposed within the dispensing groove; The shielding component is connected to the adhesive component.

[0010] According to the present invention, the insulating base of a transformer includes a plastic component.

[0011] This utility model also provides an electronic device, including any of the above-mentioned transformers.

[0012] According to the present invention, an electronic device further includes: The circuit board, wherein the wiring terminals are exposed on the second part of the base and connected to the circuit board.

[0013] According to the present invention, an electronic device includes an on-board charger.

[0014] The transformer and electronic equipment provided by this utility model allow for the integral injection molding of the base body, cover plate, and terminals during the transformer manufacturing process. Specifically, the first part of the terminals is encased in plastic within the insulating base. Since the first part of the terminals is no longer exposed, when the transformer is soldered to the circuit board, the exposed portion of the terminals, which originally required insulation protection, is now protected by plastic, eliminating the need for additional adhesive application. This also reduces the baking and fixing steps required for adhesive application, making the overall manufacturing process more convenient. By reducing production steps, the complexity of transformer manufacturing is lowered, improving process efficiency and reducing production costs.

[0015] Moreover, since the first part of the terminal block is encased in plastic inside the insulating base, it can isolate the terminal block from the components on the other side of the circuit board, ensuring a safe insulation distance and improving the insulation reliability of the transformer and the electronic equipment containing the transformer.

[0016] Furthermore, the insulating base can be directly installed during the finished product manufacturing process, efficiently completing transformer production and significantly reducing installation steps. This also ensures precise alignment between the insulating base and the terminals. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a partial structural schematic diagram of the transformer provided by this utility model.

[0019] Figure 2 This is one of the structural schematic diagrams of the transformer provided by this utility model.

[0020] Figure 3 This is the second schematic diagram of the transformer provided by this utility model.

[0021] Figure 4 This is the third schematic diagram of the transformer provided by this utility model.

[0022] Figure 5 This is the fourth structural schematic diagram of the transformer provided by this utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the electronic device provided by this utility model.

[0024] Figure label: 1: Transformer; 10: Insulating base; 12: Base body; 122: Glue dispensing groove; 14: Cover plate; 20: Insulating channel; 30: Wiring terminal; 32: First terminal; 34: Second terminal; 36: Third terminal; 38: Fourth terminal; 40: First winding; 42: First lead; 44: Second lead; 50: Second winding; 52: Third lead; 54: Fourth lead; 60: Shielding component; 70: First part; 80: Second part; 9: Electronic equipment; 90: Circuit board. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Currently, power electronic equipment has increasingly stringent requirements for component performance. With social development, there is a growing demand for more advanced and high-end power electronic equipment. At the same time, with the increase in component and overall power, the voltage and current in the operation of the whole machine are also increasing, which brings new opportunities and challenges to the insulation design of components (high-frequency transformers / inductors) in the manufacturing industry.

[0027] The LC transformer in the OBC on-board charger requires thicker stranded film wire to handle high current requirements. Safety regulations must be met for the windings, the windings and the magnetic core, the magnetic core and the housing, and the leads and the components on the opposite side of the PCB board.

[0028] In related technologies, insulation is typically achieved using tape between windings, a frame or tape between windings and the magnetic core, tape or a shielding shell between the magnetic core and the housing, and sleeves or adhesive coatings between the leads and components on the opposite side of the PCB board. The specific process is as follows: first, adhesive is applied to the terminals and base and baked to fix them; then, the leads are threaded through protective sleeves and soldered to the terminals; finally, adhesive coatings are applied to the terminals for protection; and finally, the finished product is formed after the adhesive has completely baked and cured. This manufacturing process is complex, resulting in low efficiency and poor insulation reliability.

[0029] Based on this, embodiments of the present invention provide a transformer in which the cover plate and the base body are integrated into a single structure. That is, during the transformer's manufacturing process, the base body, cover plate, and terminals can be integrally injection molded, meaning the first part of the terminals is encased in plastic within the insulating base. Since the first part of the terminals is no longer exposed, when the transformer is soldered to a circuit board, the exposed portion of the terminals, which originally required insulation protection, is now protected by plastic encapsulation, eliminating the need for additional adhesive application. This also reduces the baking and fixing steps required for adhesive application, making the overall manufacturing process more convenient. By reducing production steps, the complexity of transformer manufacturing is lowered, which is beneficial for improving process efficiency and reducing transformer production costs.

[0030] Moreover, since the first part of the terminal block is encased in plastic inside the insulating base, it can isolate the terminal block from the components on the other side of the circuit board, ensuring a safe insulation distance and improving the insulation reliability of the transformer and the electronic equipment containing the transformer.

[0031] Furthermore, the insulating base can be directly installed during the finished product manufacturing process, efficiently completing transformer production and significantly reducing installation steps. This also ensures precise alignment between the insulating base and the terminals.

[0032] The following is combined Figures 1 to 6 The present invention describes the transformer 1 and the electronic device 9.

[0033] Firstly, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment provides a transformer 1, including an insulating base 10 and terminals 30. The insulating base 10 includes a base body 12 and a cover plate 14. The cover plate 14 is disposed on one side of the base body 12 and forms an insulating channel 20 with the base body 12. The first portion 70 of the terminals 30 is disposed within the insulating channel 20, and the second portion 80 of the terminals 30 is exposed outside the insulating base 10. The base body 12 and the cover plate 14 are an integral structure.

[0034] The transformer 1 in this embodiment includes an insulating base 10 and terminals 30. Specifically, a cover plate 14 is disposed on one side of the base body 12, and the cover plate 14 and the base body 12 form an insulating channel 20. The first part 70 of the terminals 30 is located within the insulating channel 20. Since the cover plate 14 and the base body 12 are an integral structure, the first part 70 of the terminals 30 is encased in plastic inside the insulating base 10.

[0035] Since the first part 70 of the terminal block 30 is no longer exposed, when the transformer 1 is soldered to the circuit board 90, the exposed part of the terminal block that originally required insulation protection has been protected by plastic coating, and no additional gluing is required. This also reduces the process steps that require fixing and baking when applying gluing, making the overall manufacturing process of the product more convenient. While reducing the production steps, it also reduces the process complexity of transformer 1 production, which is conducive to improving process efficiency and reducing the production cost of transformer 1.

[0036] Furthermore, since the first part 70 of the terminal block 30 is encased in plastic inside the insulating base 10, it can isolate the terminal block 30 from the components on the other side of the circuit board 90, ensuring a safe insulation distance and improving the insulation reliability of the transformer 1 and the electronic equipment 9 with the transformer 1.

[0037] Furthermore, during the manufacturing process, the insulating base 10 can be directly installed, efficiently completing the production of the transformer 1 and significantly reducing the installation steps. Simultaneously, it ensures precise alignment between the insulating base 10 and the terminal blocks 30.

[0038] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, there are multiple cover plates 14, which together form multiple insulating channels 20 with the base body 12. There are multiple terminals 30, with the first part 70 of each terminal 30 located within an insulating channel 20 and the second part 80 of each terminal 30 exposed on the insulating base 10. All cover plates 14 are integrally formed with the base body 12.

[0039] In this embodiment, since the first part 70 of each terminal 30 is located in an insulating channel 20, that is, multiple terminals 30 are integrated on the insulating base 10 at the same time, and each terminal 30 is individually injection molded into a region, making full use of the space of the insulating base 10.

[0040] Furthermore, since the multiple cover plates 14 are all integrally formed with the base body 12, the base body 12, multiple cover plates 14, and multiple terminals 30 can be integrally injection molded, which helps to further improve process efficiency and reduce the production cost of transformer 1. At the same time, it ensures the insulation safety distance and improves the insulation reliability between transformer 1 and the components on the opposite side of circuit board 90.

[0041] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the plurality of terminals 30 include at least a first terminal 32 and a second terminal 34. The first terminal 32 and the second terminal 34 are respectively located on the same side of the insulating base 10. The transformer 1 also includes a first winding 40, which is disposed on the insulating base 10. The first winding 40 includes a first lead 42 and a second lead 44. The first lead 42 is connected to the first terminal 32, and the second lead 44 is connected to the second terminal 34.

[0042] In this embodiment, the plurality of terminals 30 include at least a first terminal 32 and a second terminal 34. Specifically, the first lead 42 of the first winding 40 is connected to the first terminal 32, and the second lead 44 of the first winding 40 is connected to the second terminal 34. Optionally, the first lead 42 and the first terminal 32 are connected by soldering. The second lead 44 and the second terminal 34 are also connected by soldering.

[0043] Optionally, the first winding 40 is the primary winding. The first terminal 32 is the input, and the second terminal 34 is the output.

[0044] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the plurality of terminals 30 also include a third terminal 36 and a fourth terminal 38. The third terminal 36 and the fourth terminal 38 are located on the same side of the insulating base 10. The transformer 1 also includes a second winding 50, which is disposed on the insulating base 10. The second winding 50 includes a third lead 52 and a fourth lead 54, the third lead 52 being connected to the third terminal 36 and the fourth lead 54 being connected to the fourth terminal 38.

[0045] In this embodiment, the plurality of terminals 30 further include a third terminal 36 and a fourth terminal 38. Specifically, the third lead 52 of the second winding 50 is connected to the third terminal 36, and the fourth lead 54 of the second winding 50 is connected to the fourth terminal 38. Optionally, the third lead 52 and the third terminal 36 are connected by soldering. The fourth lead 54 and the fourth terminal 38 are also connected by soldering.

[0046] Optionally, the second winding 50 is a secondary winding. The third terminal 36 is the input, and the fourth terminal 38 is the output.

[0047] In some embodiments, the first winding 40 is a primary winding and the second winding 50 is a secondary winding.

[0048] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the base body 12 is provided with a dispensing groove 122, which and the wiring terminal 30 are located on the same side of the base body 12. The transformer 1 also includes an adhesive component and a shielding component 60. The adhesive component is disposed in the dispensing groove 122. The shielding component 60 is connected to the adhesive component.

[0049] In this embodiment, since the glue dispensing groove 122 and the wiring terminal 30 are located on the same side of the base body 12, when the transformer 1 is soldered to the circuit board 90, the shield 60 is located on the side of the base body 12 facing the circuit board 90, which serves to shield the signal.

[0050] By setting the adhesive groove 122, the fixing effect between the shielding component 60 and the base body 12 can be ensured, which is conducive to improving the installation stability and reliability of the shielding component 60.

[0051] Optionally, there may be multiple dispensing grooves 122, which are arranged at intervals on the seat body 12.

[0052] In some embodiments, the insulating base 10 includes a plastic component.

[0053] Optionally, plastic parts include FR530.

[0054] In one specific embodiment, the present invention provides an injection-molded base plate insulation structure for a transformer 1, including a base part (insulating base 10) and four metal terminals (wiring terminals 30), with four slots (insulating channels 20) designed in the base (insulating base 10).

[0055] Specifically, the installation sequence and features are as follows: First, the product wire is wound onto the frame, the magnetic core is assembled, and glue is applied to form a semi-finished product; the lead wire of the semi-finished product is soldered to the corresponding terminal (terminal 30) of the injection-molded base, and the final product is then manufactured. The design of the injection-molded base (insulating base 10) ensures a safe insulation distance after the finished product (transformer 1) is soldered to the PCB (circuit board 90).

[0056] Four terminals (terminals 30) are injection molded into the base (insulating base 10), enabling the simultaneous fixing of four output terminals (terminals 30) on a single base, including primary input and secondary output. The base (insulating base 10) is constructed with a sandwich structure, and insulation features are made on the base according to the four terminals 30. Each terminal 30 is individually injection molded into a separate area, so that the four terminals are on the same base, making full use of the base space.

[0057] In related technologies, the process of inserting the sleeve in manual manufacturing can only ensure the safety distance by reserving a safe length and controlling the sleeve specifications, and use a capping adhesive to ensure the fixation of the protective part to the base.

[0058] Since the base body 12 and the cover 14 are integrated, the redundant terminal adhesive fixing process can be eliminated, allowing for direct welding, thus improving production efficiency. Furthermore, when the lead wires need to be sleeved and insulated from components on the other side of the PCB, it provides better reliability for safety insulation, meeting insulation distance requirements. Moreover, it eliminates the need for manual sleeve installation, saving the steps of adding the cover and fixing it to the base, making the overall manufacturing process more convenient and ensuring safer and more reliable insulation of components on the other side of the PCB.

[0059] The fixed sandwich base (insulating base 10) is assembled and fixed by injection molding. The base (insulating base 10) and the terminal (terminal 30) are integrally molded. When the terminal is injection molded, the plastic base is used as a platform to insert the terminal into the terminal slot (insulating channel 20) to form the main body. This ensures the accurate configuration of the base and the terminal at the factory, which facilitates the reduction of installation operation steps, thereby reducing production processes and ensuring the safety and reliability of insulation.

[0060] Furthermore, with the base plastic-coated, the terminals are no longer exposed. When the product is soldered to the PCB, the exposed parts of the terminals that originally required insulation protection at the bottom of the base are now protected by the plastic coating, reducing the steps of terminal dispensing, fixing, and baking during production, and lowering the complexity of the process. At the same time, the plastic-coated base eliminates the need for additional plastic covers for the terminals, allowing for direct installation of the base during finished product manufacturing, thus efficiently completing the production of transformer 1. In addition, the injection-molded base also serves to isolate the lead-out terminals (terminal 30) from components on the other side of the PCB, ensuring a safe distance.

[0061] Secondly, this embodiment provides an electronic device 9, which includes the transformer 1 described in the first aspect embodiment above. Since the electronic device 9 shown in this embodiment includes the transformer 1 described in the first aspect embodiment above, it possesses all the beneficial technical effects of the transformer 1, which will not be repeated here.

[0062] In some embodiments, such as Figure 6 As shown, the electronic device 9 also includes a circuit board 90, with the terminal block 30 exposed on the second part 80 of the base and connected to the circuit board 90.

[0063] Since the cover plate 14 and the base body 12 are set as an integral structure, that is, the first part 70 of the terminal 30 is encased in plastic inside the insulating base 10, it can isolate the terminal 30 from the components on the other side of the circuit board 90, ensure the insulation safety distance, and help improve the insulation reliability of the transformer 1 and the electronic equipment 9 with the transformer 1.

[0064] In some embodiments, electronic device 9 includes an on-board charger.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A transformer, characterized in that, include: An insulating base, comprising a base body and a cover plate, wherein the cover plate is disposed on one side of the base body and forms an insulating channel with the base body; A terminal block, wherein a first part of the terminal block is disposed within the insulating channel, and a second part of the terminal block is exposed outside the insulating base; The seat body and the cover plate are an integral structure.

2. The transformer according to claim 1, characterized in that, The number of cover plates is multiple, and the multiple cover plates respectively form multiple insulating channels with the seat body; The number of terminals is multiple, with the first part of each terminal located within an insulating channel and the second part of each terminal exposed outside the insulating base; Among them, multiple cover plates are integrally formed with the seat body.

3. The transformer according to claim 2, characterized in that, The plurality of terminals include at least a first terminal and a second terminal, the first terminal and the second terminal being located on the same side of the insulating base, and the transformer further includes: A first winding is disposed on the insulating base. The first winding includes a first lead and a second lead. The first lead is connected to the first terminal, and the second lead is connected to the second terminal.

4. The transformer according to claim 3, characterized in that, The plurality of terminals further include a third terminal and a fourth terminal, the third terminal and the fourth terminal being located on the same side of the insulating base, and the transformer further includes: The second winding is disposed on the insulating base. The second winding includes a third lead and a fourth lead. The third lead is connected to the third terminal, and the fourth lead is connected to the fourth terminal.

5. The transformer according to claim 4, characterized in that, The first winding is the primary winding, and the second winding is the secondary winding.

6. The transformer according to any one of claims 1 to 5, characterized in that, The base body is provided with an adhesive dispensing groove, and the adhesive dispensing groove and the wiring terminal are respectively located on the same side of the base body. The transformer also includes: The adhesive component is disposed within the dispensing groove; The shielding component is connected to the adhesive component.

7. The transformer according to any one of claims 1 to 5, characterized in that, The insulating base comprises a plastic component.

8. An electronic device, characterized in that, The transformer includes any one of claims 1 to 7.

9. The electronic device according to claim 8, characterized in that, The electronic device also includes: The circuit board, wherein the wiring terminals are exposed on the second part of the base and connected to the circuit board.

10. The electronic device according to claim 8, characterized in that, The electronic device includes an on-board charger.

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