Circuit device, switching power supply and television
By setting preset intervals and connectors between circuit boards, the problem of circuit board assembly in ultra-thin circuit boards is solved, achieving good isolation and stable connection, meeting isolation requirements and improving the stability of the circuit device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-04-14
AI Technical Summary
How to achieve proper assembly between primary and secondary isolated circuit boards in ultra-thin circuit boards, ensuring a safe distance to meet isolation requirements.
The first circuit board and the second circuit board are fixed by a preset interval and connectors. The connectors extend in different directions and are further stabilized by the fasteners to ensure a safe distance and stable connection between the circuit boards.
It achieves good assembly and isolation between circuit boards in ultra-thin circuit boards, meeting isolation requirements while saving space and improving the stability and reliability of circuit devices.
Smart Images
Figure CN224124319U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic technology, specifically to a circuit device, a switching power supply, and a television set. Background Technology
[0002] As televisions trend towards thinner designs, the internal circuit boards also need to become increasingly thinner. Ultra-thin circuit boards present a significant challenge for heat dissipation, especially for power boards which experience higher power consumption. Using aluminum as the material for the power board PCB (Printed Circuit Board) is an excellent solution, as it effectively aids in heat dissipation for mounted components.
[0003] However, isolated switching power supplies require primary-secondary isolation. To achieve good primary-secondary isolation, two independent PCBs are needed, ensuring sufficient safety distance between them before assembly. How to properly assemble these two PCBs is a problem that needs to be solved. Utility Model Content
[0004] This application provides a circuit device, a switching power supply, and a television set, which can achieve good assembly between two circuit boards while meeting the isolation requirements of the two circuit boards.
[0005] This application provides a circuit device, the circuit device comprising:
[0006] A first circuit board and a second circuit board, with a preset interval between them;
[0007] At least one connector is connected to the first circuit board and the second circuit board at a preset interval, so that the first circuit board and the second circuit board are relatively fixed.
[0008] In some embodiments of the circuit device, when there are multiple connectors, each connector extends along a first direction, and the multiple connectors are spaced apart along a second direction, with the first and second directions intersecting.
[0009] In some embodiments of the circuit arrangement, the circuit arrangement further includes a fixing member that extends along a second direction and is connected to a plurality of connectors such that the plurality of connectors are relatively fixed to each other.
[0010] In some embodiments of the circuit device, the first circuit board and the second circuit board are located on the same plane; a plurality of connectors are disposed on the same side of the plane where the first circuit board and the second circuit board are located.
[0011] In some embodiments of the circuit device, the fixing member is disposed in a predetermined interval.
[0012] In some embodiments of the circuit device, the first circuit board and the second circuit board are located on different planes, and the first circuit board, the connector and the second circuit board are stacked in sequence.
[0013] In some embodiments of the circuit arrangement, a connector is disposed at the edge of a first circuit board and the edge of a second circuit board, the first circuit board and the second circuit board extending away from the connector in two opposite directions.
[0014] In some embodiments of the circuit device, both the connectors and the fasteners are insulating components.
[0015] In some embodiments of the circuit device, both the first circuit board and the second circuit board are aluminum-based circuit boards.
[0016] This application also provides a switching power supply, which includes the circuit device described above.
[0017] This application also provides a television set, which includes the aforementioned switching power supply.
[0018] This application provides a circuit device, a switching power supply, and a television set. The circuit device includes a first circuit board, a second circuit board, and at least one connector. A preset interval is provided between the first circuit board and the second circuit board. The connector is connected to the first circuit board and the second circuit board respectively through the preset interval, ensuring a certain safe distance between the first circuit board and the second circuit board while achieving good assembly between the two circuit boards. Attached Figure Description
[0019] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.
[0020] Figure 1 This is a schematic diagram of a first structure of a circuit device provided in an embodiment of this application.
[0021] Figure 2 In the circuit device provided in the embodiments of this application Figure 1 A cross-sectional schematic diagram.
[0022] Figure 3 This is a schematic diagram of a second structure in the circuit device provided in the embodiments of this application.
[0023] Figure 4 This is a schematic diagram of a third structure in the circuit device provided in the embodiments of this application.
[0024] Figure 5 In the circuit device provided in the embodiments of this application Figure 4 A cross-sectional schematic diagram.
[0025] Figure 6This is a schematic diagram of a fourth structure in the circuit device provided in the embodiments of this application.
[0026] Figure 7 In the circuit device provided in the embodiments of this application Figure 6 A cross-sectional schematic diagram.
[0027] Figure label:
[0028] 11. First circuit board; 12. Second circuit board; 13. Connector; 14. Fixing component; 131. Connecting hole. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features thus defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0031] Please refer to the following: Figure 1 and Figure 2 This embodiment provides a circuit device, including a first circuit board 11, a second circuit board 12, and at least one connector 13. A preset interval is provided between the first circuit board 11 and the second circuit board 12. The connector 13 is connected to the first circuit board 11 and the second circuit board 12 through the preset interval, so that the first circuit board 11 and the second circuit board 12 are relatively fixed, ensuring that there is a certain safe distance between the first circuit board 11 and the second circuit board 12.
[0032] In this circuit board, the first circuit board 11 serves as the primary side circuit board, and the second circuit board 12 serves as the secondary side circuit board. To meet the isolation requirements between the first circuit board 11 and the second circuit board 12, the first circuit board 11 and the second circuit board 12 are independently spaced apart. To ensure a sufficient safe distance between the first circuit board 11 and the second circuit board 12, after pre-reserving a safe distance (i.e., a preset interval) between the two circuit boards, the first circuit board 11 and the second circuit board 12 are connected by a connector 13, so that the first circuit board 11 and the second circuit board 12 are relatively fixed and have a certain safe distance to meet the power isolation requirements.
[0033] In some embodiments, to improve the stability of the fixation between the first circuit board 11 and the second circuit board 12, multiple connectors 13 can be provided simultaneously. When there are multiple connectors 13, each connector 13 extends along a first direction, and the multiple connectors 13 are arranged at intervals along a second direction, with the first and second directions intersecting. The second direction is the extension direction of a predetermined interval between the first circuit board 11 and the second circuit board 12. The multiple connectors 13 are evenly arranged along the second direction to ensure the stability of the fixation between the first circuit board 11 and the second circuit board 12.
[0034] The multiple connectors 13 are spaced apart by a certain gap, which can be used to set electronic devices that need to be connected between the first circuit board 11 and the second circuit board 12, so as to establish an electrical connection between the first circuit board 11 and the second circuit board 12.
[0035] Please refer to the following: Figure 3 In some embodiments, during assembly, the first circuit board 11 and the second circuit board 12 are located on the same plane, and multiple connectors 13 are all located on the same side of the plane containing the first circuit board 11 and the second circuit board 12. Each connector 13 can be a short strip structure, located at the edge of the gap between the first circuit board 11 and the second circuit board 12. Each connector 13 has a connecting hole 131, and the first circuit board 11 and the second circuit board 12 have mounting holes that mate with the connecting holes 131. Thus, based on the connecting holes 131 and the mounting holes, screws are used to connect and fix the connector 13 to the first circuit board 11 and the second circuit board 12 respectively. Multiple connecting holes 131 can be provided in the connector 13, and when fixing with screws, the size of the preset gap between the first circuit board 11 and the second circuit board 12 can be adjusted by selecting different connecting holes 131.
[0036] Please see Figure 4 In some embodiments, the circuit device further includes a fixing member 14 extending along a second direction and connected to a plurality of connectors 13, thereby fixing the plurality of connectors 13 relative to each other. Essentially, the fixing member 14 secures the plurality of connectors 13 together. During assembly, the plurality of connectors 13 can be fixed to the fixing member 14 before connecting the connectors 13 and the fixing member 14 to the first circuit board 11 and the second circuit board 12. The fixed connection between the connectors 13 and the fixing member 14 can be achieved using screw fastening. Of course, the fixing member 14 can also be integrally formed with the connectors 13; this is not limited in this application.
[0037] Please refer to the following: Figure 5As one embodiment, since there is a preset interval between the first circuit board 11 and the second circuit board 12, the fastener 14 can be set in the preset interval. This improves the stability of the fixation between the first circuit board 11 and the second circuit board 12, while saving assembly space and reducing the space occupied by the circuit device.
[0038] Please refer to the following: Figure 6 and Figure 7 In other embodiments, the first circuit board 11 and the second circuit board 12 are disposed on different planes, and the first circuit board 11, the connector 13, and the second circuit board 12 are stacked sequentially. The thickness of the connector 13 can be used as the size of the preset interval between the first circuit board 11 and the second circuit board 12. In this case, the connector 13 not only connects the first circuit board 11 and the second circuit board 12, but also acts as a spacer between the first circuit board 11 and the second circuit board 12, ensuring a certain safe distance between them. In this embodiment, the interval between the first circuit board 11 and the second circuit board 12 is located in the thickness direction of the circuit boards, compared to the first circuit board 11 and the second circuit board 12 being disposed on the same plane.
[0039] Specifically, the connector 13 is disposed at the edge of the first circuit board 11 and the edge of the second circuit board 12, with the first circuit board 11 and the second circuit board 12 extending in opposite directions away from the connector 13. In this embodiment, the connector 13 can be configured as a strip structure extending along the edge direction of the circuit board. In this embodiment, the number of connectors 13 used to fix the first circuit board 11 and the second circuit board 12 is one. The connector 13 includes opposing first and second surfaces, wherein the first surface abuts against the edge of the first circuit board 11 and the second surface abuts against the edge of the second circuit board 12, thereby ensuring sufficient contact between the connector 13 and the first circuit board 11 and the second circuit board 12 to improve the stability of the connection.
[0040] To further enhance the connection's robustness, in this embodiment, the connector 13 is fastened to the first circuit board 11 and the second circuit board 12 using screws. Simultaneously, by stacking the connector 13 with the first circuit board 11 and the second circuit board 12, rather than having the first circuit board 11 and the second circuit board 12 on the same plane, the connector 13 is effectively hidden within the gap between the first circuit board 11 and the second circuit board 12. This allows for more space to be reserved for installing electronic devices that need to bridge the gap between the first circuit board 11 and the second circuit board 12.
[0041] As one embodiment, the connector 13 and the fixing member 14 in this embodiment are both used to fix the relative position between the first circuit board 11 and the second circuit board 12, and the connector 13 and the fixing member 14 can both be set as insulating members.
[0042] As one embodiment, both the first circuit board 11 and the second circuit board 12 are aluminum-based circuit boards. An aluminum-based circuit board is a printed circuit board made by combining a special ceramic dielectric with a metallic aluminum substrate through chemical treatment and high-temperature pressing. Because the aluminum substrate itself has good thermal conductivity, it can effectively dissipate heat and maintain the stability of the circuit board at high temperatures; it also has high mass bearing capacity and vibration resistance, thereby improving the reliability of the circuit device.
[0043] This application embodiment also provides a switching power supply, which includes the circuit device described above. The switching power supply is an isolated switching power supply. Since the circuit device has been described in detail above, it will not be described again here.
[0044] This application embodiment also provides a television set, which includes the aforementioned switching power supply, which provides power to the television set. Since the switching power supply has been described in detail above, it will not be repeated here.
[0045] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0046] The circuit devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A circuit arrangement, characterized by The circuit device includes: A first circuit board and a second circuit board, wherein a preset interval is provided between the first circuit board and the second circuit board; At least one connector is provided, which is connected to the first circuit board and the second circuit board respectively via the preset interval, so that the first circuit board and the second circuit board are relatively fixed.
2. The circuit arrangement of claim 1, characterized in that When there are multiple connectors, each connector extends along a first direction, and the multiple connectors are arranged at intervals along a second direction, wherein the first direction and the second direction intersect.
3. The circuit arrangement of claim 2, characterized in that The circuit device further includes a fixing member that extends along the second direction and is connected to the plurality of connectors so that the plurality of connectors are relatively fixed to each other.
4. The circuit device according to claim 3, characterized in that, The first circuit board and the second circuit board are located on the same plane; the plurality of connectors are all disposed on the same side of the plane where the first circuit board and the second circuit board are located.
5. The circuit device according to claim 4, characterized in that, The fastener is positioned within the preset interval.
6. The circuit device according to claim 1, characterized in that, The first circuit board and the second circuit board are located on different planes, and the first circuit board, the connector and the second circuit board are stacked in sequence.
7. The circuit device according to claim 5, characterized in that, The connector is disposed at the edge of the first circuit board and the edge of the second circuit board, and the first circuit board and the second circuit board extend away from the connector in two opposite directions.
8. The circuit device according to any one of claims 3 to 7, characterized in that, The connector is an insulating component.
9. The circuit device according to claim 8, characterized in that, Both the first circuit board and the second circuit board are aluminum-based circuit boards.
10. A switching power supply, characterized in that, The switching power supply includes the circuitry as described in any one of claims 1-9.
11. A television set, characterized in that, The television set includes the switching power supply as described in claim 10.