Circuit board and switching device
By setting limit and locking components on the circuit board, the problems of high cost and long production cycle caused by adhesive fixing of easily swaying components are solved, achieving more efficient production and more stable circuit board design.
Patent Information
- Application Number
- CN202520153010.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-22
AI Technical Summary
In the existing technology, the use of adhesives to fix easily wobbly components during the production process of circuit boards leads to high costs and extended production cycles.
By setting limit and locking components in the high-voltage area, the swing range of easily swaying components is limited, ensuring the stability of the electrical clearance safety zone and reducing the need for adhesive application.
It reduces processing costs, improves production efficiency, enhances the stability and reliability of circuit boards, extends service life, and simplifies the types of components and installation process.
Smart Images
Figure CN223798411U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of low-voltage electrical technology, and in particular to a circuit board and switching device. Background Technology
[0002] Electronic products have very high safety standards for power supplies. The purpose is to ensure good insulation between high and low voltages to prevent current leakage, thereby protecting user safety and preventing short circuits in internal electronic components caused by current leakage, which would affect the normal operation of the product.
[0003] To meet these safety standards, many through-hole components are used in the power supply section. These components may move or wobble during the manufacturing process. To stabilize these wobbleing components, an adhesive (such as a glue application process) is typically used to fix them in place. See details... Figure 1 .
[0004] However, this approach incurs additional costs because the glue itself has a cost, and the glue needs time to cure, which extends the production cycle and thus increases production costs. Utility Model Content
[0005] This application provides a circuit board and switching device that reduces the need for adhesive application, thereby lowering processing costs. Eliminating the adhesive application process results in higher processing efficiency and increased production speed.
[0006] In one aspect, this application provides a circuit board, which includes a main body, swingable components, and limiting components.
[0007] The main body has a high-voltage area, and a low-voltage area is set in the area where the main body is assembled. There is an electrical clearance safety zone between the high-voltage area and the low-voltage area.
[0008] The oscillating components are installed in the high-voltage area, and some of the oscillating components are located near the electrical clearance safety zone. The oscillating components can swing toward the electrical clearance safety zone.
[0009] The limiting component is installed in the high-voltage area, the limiting component is locked in the high-voltage area, the limiting component is set in a position close to the electrical clearance safety zone, and the limiting component is set on the side of the easily swinging component close to the electrical clearance safety zone.
[0010] Among them, the side of the limiting component closest to the easily swinging component is a stop surface, which can limit the easily swinging component.
[0011] In the above structure, after the easily swaying component swings towards the electrical clearance safety zone, it comes into contact with the stop surface. The stop surface prevents the easily swaying component from continuing to swing towards the electrical clearance safety zone, reducing its impact on the size of the electrical clearance safety zone and improving circuit board safety. This avoids a reduction in the electrical clearance safety zone caused by the swaying of the easily swaying component. This also reduces the need for adhesive application, thereby lowering processing costs. Eliminating the adhesive application process allows for higher processing efficiency and increased production speed. Furthermore, eliminating the adhesive application process reduces the impact of adhesive on components.
[0012] In some examples, at least one limiting element is provided on the periphery of each wobbly component.
[0013] This design effectively reduces the movement range of easily swaying components when subjected to external forces or vibrations, thereby maintaining the stability of the electrical clearance safety zone. The position and number of limiting components can be adjusted according to actual needs to ensure that the electrical performance of the circuit board remains within a safe range under different working environments and conditions. By rationally arranging the limiting components, not only can the overall reliability of the circuit board be improved, but its service life can also be extended and maintenance costs reduced.
[0014] In some examples, the circuit board also includes locking components mounted in the high-voltage area, positioned around the swaying components, and capable of locking the swaying components in positions other than the limiting area of the limiting components.
[0015] The locking components are designed to further enhance the stability of the electrical clearance safety zone. By placing locking components around easily swaying components, accidental movement of these components outside the limit area can be effectively prevented, thereby improving the connection stability of easily swaying components, reducing the need for adhesive application, and simplifying the process while lowering costs.
[0016] In some examples, at least one locking element is provided, and at least one locking element and a limiting element are provided on opposite sides of the swinging element.
[0017] The aforementioned configuration not only enhances the overall stability of easily swaying components but also forms a balanced mechanical structure through the supports on both sides, further reducing the risk of displacement of these components due to external interference. In practical applications, this design significantly improves the circuit board's adaptability to complex environments, ensuring that the equipment maintains efficient and stable operation under various working conditions. Furthermore, the material selection and manufacturing process of the locking components have been carefully considered to ensure they are not easily worn or deformed during long-term use, thereby extending the overall service life of the circuit board. Through these comprehensive optimization measures, the circuit board provided in this application not only guarantees performance but also greatly improves its reliability and durability.
[0018] In some examples, there are two locking components, with the two locking components and one limiting component located at three different positions around the swaying component.
[0019] This layout design not only effectively fixes the easily swaying components and prevents them from shifting when subjected to vibration or impact, but also further improves the stability and safety of the easily swaying components through multi-point support.
[0020] In some examples, the locking and limiting components around the swaying component are the same components.
[0021] This design not only simplifies the types of components and reduces the complexity of production and maintenance, but also ensures compatibility and consistency among components. By using the same locking and limiting components, procurement standards can be unified, reducing the variety of inventory and thus lowering costs. Furthermore, identical components facilitate installation and debugging, reducing installation errors caused by component differences. This design approach demonstrates high flexibility and reliability in practical applications, providing strong support for optimized circuit board design and efficient production.
[0022] In some examples, the locking and limiting components around the swaying component are components of different sizes and / or different dimensions.
[0023] Locking components and limiting components differ in design to adapt to the design requirements of different circuit boards in order to achieve specific functions and performance.
[0024] While this design increases the variety of components, the use of locking and limiting components of different sizes and / or dimensions can better accommodate the swing range and amplitude of easily swaying components, ensuring stable locking and limiting effects during swaying. Furthermore, by designing and matching components of different sizes and dimensions, the spatial layout of the circuit board can be further optimized, improving the overall structural compactness and stability.
[0025] In some examples, at least one locking component and a limiting component are evenly arranged around the swaying component.
[0026] This uniform arrangement helps ensure that locking and limiting components are evenly stressed during the oscillation of easily swaying components, avoiding poor locking or limiting effects caused by uneven stress. At the same time, the uniform arrangement makes better use of the circuit board space, resulting in a more compact and orderly overall structure. This design not only improves the stability and reliability of the circuit board but also facilitates subsequent maintenance and upgrades.
[0027] In some examples, a swinging component is a component with two pins, and a swinging component includes at least one of a resistor, an inductor, and a capacitor.
[0028] The aforementioned swingable components typically have two leads, meaning they are double-ended. They can be resistors, inductors, or capacitors. These components are very common in circuits, used to control current flow, store energy, or filter signals.
[0029] Secondly, this application provides a switching device, including a circuit board and a housing as described above, with the circuit board disposed within the housing.
[0030] The use of the aforementioned circuit board switching devices reduces the need for adhesive application, thereby lowering processing costs. Eliminating the adhesive application process also allows for higher processing efficiency and increased production speed. Furthermore, the removal of the adhesive application process reduces the impact of the adhesive on the components.
[0031] Specifically, in the above structure, after the easily swaying component swings towards the electrical clearance safety zone, it comes into contact with the stop surface. The stop surface prevents the easily swaying component from continuing to swing towards the electrical clearance safety zone, reducing its impact on the size of the electrical clearance safety zone and improving circuit board safety. This avoids a reduction in the electrical clearance safety zone caused by the swaying of the easily swaying component. This also reduces the need for adhesive application, thereby lowering processing costs. Eliminating the adhesive application process allows for higher processing efficiency and increased production speed. Furthermore, eliminating the adhesive application process reduces the impact of adhesive on components. Attached Figure Description
[0032] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the examples or prior art description will be briefly introduced below. Obviously, the drawings described below are only some examples of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0033] Figure 1 This is a schematic diagram of the structure of a circuit board with easily swaying components in the prior art.
[0034] Figure 2 This is a schematic diagram of the structure of a circuit board with a swaying component being limited by a limiting component in one example of this application.
[0035] Figure 3 This is a schematic diagram of the structure of a circuit board in one example of this application, where a swinging component is limited by a limiting component and a locking component is provided on the other side of the swinging component.
[0036] Figure 4 This is a schematic diagram of the first structure of a circuit board in one example of this application, where a wobbly component is limited by a limiting component and at least one locking component is provided around other positions of the wobbly component.
[0037] Figure 5 This is a schematic diagram of a second structure in one example of this application, where a wobbly component on a circuit board is limited by a limiting component and at least one locking component is provided around other positions of the wobbly component.
[0038] Figure 6 This is a schematic diagram of a third structure in an example of this application, where a wobbly component on a circuit board is limited by a limiting component and at least one locking component is provided around other positions of the wobbly component.
[0039] Figure 7 This is a schematic diagram of the fourth structure in one example of this application, where a wobbly component on a circuit board is limited by a limiting component and at least one locking component is provided around other positions of the wobbly component.
[0040] Figure 8 This is a fifth structural diagram of a circuit board in one example of this application, where a wobbly component is limited by a limiting component and at least one locking component is provided around other positions of the wobbly component.
[0041] Figure 9 This is a sixth structural diagram of a circuit board in one example of this application, where a wobbly component is limited by a limiting component and at least one locking component is provided around other positions of the wobbly component.
[0042] Figure 10 This is a seventh structural diagram of a circuit board in one example of this application, where a wobbly component is limited by a limiting component and at least one locking component is provided around other positions of the wobbly component.
[0043] Figure 11This is an eighth structural diagram of a circuit board in one example of this application, where a wobbly component is limited by a limiting component and at least one locking component is provided around other positions of the wobbly component.
[0044] Figure label:
[0045] 100. Main body; 110. High voltage area; 200. Easily swinging components; 300. Limiting components; 310. Stop surface; 400. Locking components; 500. Low voltage area; 600. Electrical clearance safety area. Detailed Implementation
[0046] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and examples. It should be understood that the specific examples described herein are merely illustrative and not intended to limit the scope of this application.
[0047] To solve the above technical problems, please refer to Figure 2 - Figure 11 As shown, the first aspect of this application proposes a circuit board that reduces the need for adhesive application, thereby lowering processing costs. Eliminating the adhesive application process allows for higher processing efficiency and increased production speed.
[0048] Reference Figure 2 In some examples, the circuit board includes a main body 100, a swinging component 200, and a limiting component 300.
[0049] The main body 100 has a high-voltage area 110, and a low-voltage area 500 is provided in the area where the main body 100 is assembled. There is an electrical clearance safety area 600 between the high-voltage area 110 and the low-voltage area 500.
[0050] The swinging component 200 is installed in the high-voltage area 110. Some of the swinging components 200 are located near the electrical clearance safety area 600. The swinging components 200 can swing toward the electrical clearance safety area 600.
[0051] The limiting component 300 is installed in the high-voltage area 110 and locked in the high-voltage area 110. The limiting component 300 is located near the electrical clearance safety area 600 and is located on the side of the easily swinging component 200 near the electrical clearance safety area 600.
[0052] Among them, the side of the limiting component 300 closest to the swinging component 200 is the stop surface 310, which can limit the swinging component 200.
[0053] The main purpose of this application is to use a series of fixed components to effectively limit the movement of components that are prone to swaying, thereby ensuring that the electrical clearance safety zone 600 meets safety standards.
[0054] In practical applications, when these easily swaying devices swing towards the weak current zone 500, the originally set electrical clearance safety zone 600 will decrease accordingly, which will lead to a decrease in insulation performance and may cause safety hazards.
[0055] By implementing restraint measures for these easily swaying components, the electrical clearance safety zone of 600 mm can be effectively maintained, thereby ensuring overall insulation performance. Furthermore, this restraint measure can help save costs associated with additional processes such as adhesive application.
[0056] A circuit board is a board used in electronic devices to carry electronic components and realize circuit connections. Circuit boards are usually made of multiple layers of insulating material and have circuit diagrams printed on them for mounting electronic components. The main body 100 has a high-voltage area 110, and a low-voltage area 500 is provided in the area where the main body 100 is assembled. An electrical clearance safety area 600 is provided between these two areas to ensure electrical safety and reduce the risk of electric shock to operators.
[0057] Specifically, the high-voltage area 110 is where electronic components are housed, and this is the critical area in the entire equipment responsible for handling high voltage and high current. To ensure overall electrical safety, a low-voltage area 500 is set up within the assembly area of the main body 100. This area is primarily responsible for handling low voltage and low current signals. To further enhance safety, an electrical clearance safety zone 600 is specifically provided between these two areas. The purpose of this safety zone is to provide physical isolation, ensuring sufficient space between the high-voltage area 110 and the low-voltage area 500, thereby effectively preventing electric shock accidents caused by electrical faults or improper operation, and greatly reducing the risk of electric shock to operators during use.
[0058] The aforementioned high-voltage zone 110 can refer to the part that can carry higher voltage and current, while the low-voltage zone 500 can refer to the part that carries lower voltage and current. The electrical clearance safety zone 600 is the area between the two, used to ensure a safe distance and prevent the current and voltage of the high-voltage zone 110 from interfering with or causing safety problems to the low-voltage zone 500.
[0059] The strong current zone 110 and weak current zone 500 in this application are relative zones, not absolute high voltage and low voltage zones, and are set according to specific needs.
[0060] The swinging component 200 refers to electronic components that are physically capable of swinging and are installed in the high-voltage area 110, some even close to the electrical clearance safety area 600. The swinging component 200 can swing towards the electrical clearance safety area 600, which poses a certain safety risk.
[0061] The limiting component 300 is used to limit the movement range of the swinging component 200. It is also installed in the high-voltage area 110. The limiting component 300 is locked in a specific position in the high-voltage area 110. The position of the limiting component 300 is set near the electrical clearance safety area 600, and is located on the side of the swinging component 200 near the electrical clearance safety area 600.
[0062] One side of the limiting component 300 is designed as a stop surface 310 to limit the swing range of the easily swinging component 200, prevent it from swinging excessively, and prevent it from getting too close to or entering the electrical clearance safety zone 600, thereby avoiding potential safety risks.
[0063] After the easily swaying component 200 swings towards the electrical clearance safety area 600, it comes into contact with the stop surface 310. The stop surface 310 prevents the easily swaying component 200 from continuing to swing towards the electrical clearance safety area 600, reducing the impact of the easily swaying component 200 on the size of the electrical clearance safety area 600 and improving the safety of the circuit board. This avoids a reduction in the electrical clearance safety area 600 due to the swinging of the easily swaying component 200. The above situation can reduce the need for adhesive application, thereby reducing processing costs. Without adhesive application, processing efficiency can be higher, increasing production speed. Furthermore, eliminating adhesive application reduces the impact of adhesive on components.
[0064] The aforementioned electrical clearance safety zone 600 is a clearance within a safe range. The electrical clearance safety zone 600 varies depending on the actual installation of the circuit board and is set according to specific needs. By setting the limit component 300, the reduction of the electrical clearance safety zone 600 caused by the swinging of the easily swinging component 200 can be reduced or even eliminated.
[0065] The easily wobbling component 200 is a component without a limiting plane, while the limiting component 300 is a component with a limiting plane. The limiting plane can adhere to the surface of the main body 100 of the circuit board and achieve relative fixation of the component. This adherence is a relative adherence, with a small gap forming a limiting effect; it is not necessarily a perfectly tight fit. After the component is soldered and fixed, the limiting component 300 will not easily wobble. Because the easily wobbling component 200 lacks a limiting plane, it cannot achieve relative fixation with the surface of the main body 100, and therefore has the potential to wobble.
[0066] The electrical clearance safety area 600 can be a dynamic region that changes with the high-voltage area 110. For example, the size of the electrical clearance safety area 600 may change during the oscillation of the easily oscillating component 200. Alternatively, the electrical clearance safety area 600 may also increase when the voltage increases.
[0067] Reference Figures 2 to 4 In some examples, each swinging component 200 has at least one limiting component 300 on its periphery.
[0068] This design effectively reduces the movement range of the easily swaying component 200 when subjected to external forces or vibrations, thereby maintaining the stability of the electrical clearance safety zone 600. The position and number of the limiting components 300 can be adjusted according to actual needs to ensure that the electrical performance of the circuit board remains within a safe range under different working environments and conditions. By rationally arranging the limiting components 300, not only can the overall reliability of the circuit board be improved, but its service life can also be extended, and maintenance costs reduced. Furthermore, this limiting method does not affect the normal function of the components, maintaining the efficient operation of the circuit board.
[0069] Reference Figures 3 to 11 In some examples, the circuit board also includes a locking component 400, which is mounted in the high-voltage area 110 and is located around the swaying component 200. The locking component 400 can lock the swaying component 200 in other positions except for the limiting area of the limiting component 300.
[0070] The locking component 400 is designed to further enhance the stability of the electrical clearance safety zone 600. By setting the locking component 400 around the swaying component 200, accidental movement of the swaying component 200 in the non-limited area can be effectively prevented, thereby improving the connection stability of the swaying component 200, reducing the glue application process, and achieving the effects of simplifying the process and reducing costs.
[0071] The material selection and structural design of the locking component 400 must consider characteristics such as high temperature resistance and vibration resistance to ensure its reliability in various working environments. Furthermore, the installation method of the locking component 400 should be simple and easy to perform, facilitating maintenance and replacement, while not affecting the overall layout and electrical performance of the circuit board. Through this dual limiting and locking mechanism, the safety and stability of the circuit board are significantly improved, providing a strong guarantee for the long-term stable operation of the equipment.
[0072] Locking components 400 are installed around easily swaying components. This arrangement effectively stabilizes these components, ensuring they do not deviate from their intended positions due to vibration or other external forces during normal operation. This guarantees component stability while avoiding functional overlap with the limiting components 300, thus achieving comprehensive and effective protection for the components on the circuit board.
[0073] Reference Figure 3 In some examples, at least one locking element 400 is provided, and at least one locking element 400 and the limiting element 300 are provided on opposite sides of the swinging element 200.
[0074] The aforementioned configuration not only enhances the overall stability of the easily swaying component 200, but also forms a balanced mechanical structure through the supports on both sides, further reducing the risk of displacement of the easily swaying component 200 due to external interference. In practical applications, this design can significantly improve the adaptability of the circuit board in complex environments, ensuring that the equipment maintains efficient and stable operation under various working conditions. Furthermore, the material selection and manufacturing process of the locking component 400 have been carefully considered to ensure that it is not easily worn or deformed during long-term use, thereby extending the overall service life of the circuit board. Through these comprehensive optimization measures, the circuit board provided in this application greatly improves its reliability and durability while ensuring performance.
[0075] Reference Figures 5 to 7 In some examples, there are two locking components 400, and the two locking components 400 and one limiting component 300 are respectively located at three different positions around the swinging component 200.
[0076] The above-mentioned layout design not only effectively fixes the easily swaying component 200 and prevents it from shifting when subjected to vibration or impact, but also further improves the stability and safety of the easily swaying component 200 through multi-point support.
[0077] The distance between each locking component 400 and the limiting component 300 can be precisely calculated to ensure balanced constraint force in all directions, thus avoiding structural deformation caused by uneven stress at a single point. Furthermore, this three-point fixing method effectively disperses the influence of the external environment on the components, reducing stress concentration caused by factors such as temperature changes and humidity fluctuations, further extending the service life of the circuit board. In practical applications, this multi-point fixing design has proven to be significantly effective in improving the overall reliability and durability of the circuit board.
[0078] In some examples, the locking component 400 and the limiting component 300 around the swinging component 200 are the same components.
[0079] This design not only simplifies the types of components and reduces the complexity of production and maintenance, but also ensures compatibility and consistency among the components. By using the same locking component 400 and limit component 300, procurement standards can be unified, reducing the variety of inventory and thus lowering costs. Furthermore, identical components facilitate installation and debugging, reducing installation errors caused by component differences. This design approach demonstrates high flexibility and reliability in practical applications, providing strong support for optimized circuit board design and efficient production.
[0080] Reference Figures 8 to 11 In some examples, the locking element 400 and the limiting element 300 around the swinging element 200 are elements of different sizes and / or different dimensions.
[0081] The locking component 400 and the limiting component 300 are designed differently to adapt to the design requirements of different circuit boards in order to achieve specific functions and performance.
[0082] While this design increases the variety of components, the different sizes and / or dimensions of the locking components 400 and limiting components 300 can better adapt to the swing range and amplitude of the easily swinging component 200, ensuring a stable locking and limiting effect during swing. Furthermore, by designing and matching components of different sizes and dimensions, the spatial layout of the circuit board can be further optimized, improving the overall structural compactness and stability.
[0083] In the above structure, the oscillating component 200 is surrounded by locking components 400 and limiting components 300, which differ in size and dimensions. Specifically, these differences can be divided into three different cases: one is that the components differ only in size, another is that they differ only in dimensions, and the third is that the components differ in both size and dimensions.
[0084] The types of locking components 400 and limiting components 300 can be set according to specific needs, and can be components such as chips, transformers, capacitors, resistors, inductors, transistors, and field-effect transistors.
[0085] In some examples, at least one locking element 400 and a limiting element 300 are evenly arranged around the swaying element 200.
[0086] This uniform arrangement helps ensure that the locking component 400 and the limiting component 300 are evenly stressed during the oscillation of the easily swaying component 200, avoiding poor locking or limiting effects due to uneven stress. At the same time, the uniform arrangement also makes better use of the circuit board space, resulting in a more compact and orderly overall structure. This design not only improves the stability and reliability of the circuit board but also facilitates subsequent maintenance and upgrades.
[0087] In some examples, the swinging component 200 is a component with two pins, and the swinging component 200 includes at least one of a resistor, an inductor, and a capacitor.
[0088] The aforementioned swinging component 200 typically has two leads, meaning it is double-ended. It can be a resistor, inductor, or capacitor. These components are very common in circuits and are used to control current flow, store energy, or filter signals.
[0089] The aforementioned pins are metal connectors for connecting circuits, used for soldering or inserting into circuit boards to ensure the connection between components and circuits. A resistor is an electronic component that impedes the flow of electric current; its function is to consume electrical energy and generate heat, and it is usually represented by "Ω". An inductor is a component in a circuit that stores magnetic field energy; it impedes changes in current and is usually represented by "H", or Henry. A capacitor is a component that stores electric field energy; it can be charged and discharged and is usually represented by "F", or Farad.
[0090] Secondly, this application also provides a switching device, including a circuit board and a housing as described above, with the circuit board disposed within the housing.
[0091] The use of the aforementioned circuit board switching devices reduces the need for adhesive application, thereby lowering processing costs. Eliminating the adhesive application process also allows for higher processing efficiency and increased production speed. Furthermore, the removal of the adhesive application process reduces the impact of the adhesive on the components.
[0092] Specifically, in the above structure, after the easily swaying component 200 swings towards the electrical clearance safety area 600, it comes into contact with the stop surface 310. The stop surface 310 prevents the easily swaying component 200 from continuing to swing towards the electrical clearance safety area 600, reducing the impact of the easily swaying component 200 on the size of the electrical clearance safety area 600 and improving the safety of the circuit board. This avoids a reduction in the electrical clearance safety area 600 due to the swinging of the easily swaying component 200. This reduces the need for adhesive application, thereby lowering processing costs. Eliminating the adhesive application process results in higher processing efficiency and increased production speed. Furthermore, eliminating the adhesive application process reduces the impact of adhesive on components.
[0093] The main function of switching devices is to control the flow of current and protect the circuit. Among the many types of switching devices, common ones include circuit breakers, fuses, and contactors. However, there are many more types of switching devices than these, and the switching devices in this application are not limited to these three types. The circuit board of this application is set on the corresponding type of switching device as needed.
[0094] A circuit breaker is an important switching device that automatically disconnects a circuit when an abnormal current occurs, thus protecting the circuit and equipment from damage. The working principle of a circuit breaker is mainly based on electromagnetic induction and mechanical action. When the current exceeds a set value, the internal electromagnet generates sufficient magnetic force to trip the circuit breaker and disconnect the circuit. Circuit breakers are widely used in household, industrial, and commercial electrical systems and are crucial devices for ensuring electrical safety.
[0095] A fuse is a common switching device whose main function is to melt and disconnect the circuit when an overload or short circuit occurs. A fuse contains a fusible metal wire; when the current is too high, the wire heats up and melts, thus breaking the circuit. Fuses are widely used in electrical systems due to their simple structure, low cost, and high reliability.
[0096] A contactor is a switching device used to connect or disconnect circuits. It is typically used in conjunction with relays to achieve remote or automatic control. The working principle of a contactor is based on electromagnetic attraction and release. When the control circuit is energized, the electromagnet generates magnetic force to attract the moving contact, causing the main contacts to close. When the control circuit is de-energized, the electromagnet loses its magnetic force, the moving contact returns to its original position under the action of a spring, and the main contacts open. Contactors have wide applications in industrial automation, power systems, and other fields.
[0097] In addition, there are other types of switching devices, such as disconnect switches and load switches. Disconnect switches are mainly used to isolate power supplies to ensure the safety of personnel during equipment maintenance or inspection; load switches are mainly used to control the on / off state of load circuits and have overload protection and short-circuit protection functions.
[0098] In the accompanying drawings of this application, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0099] The above are merely preferred examples of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application shall be included within the scope of protection of this application.
Claims
1. A circuit board, characterized in that, The circuit board includes: The main body has a high-voltage area and a low-voltage area, and there is an electrical clearance safety area between the high-voltage area and the low-voltage area; A swingable component is installed in the high-voltage area, and some of the swingable components are located near the electrical clearance safety area. The swingable components are able to swing toward the electrical clearance safety area. A limiting component is installed in the high-voltage area, the limiting component is locked on the high-voltage area, the limiting component is located near the electrical clearance safety area, and the limiting component is located on the side of the easily swinging component near the electrical clearance safety area; The limiting component has a stop surface on the side near the easily swinging component, and the stop surface can limit the easily swinging component.
2. The circuit board as described in claim 1, characterized in that, Each of the oscillating components has at least one of the limiting components on its periphery.
3. The circuit board as described in claim 1 or 2, characterized in that, The circuit board also includes a locking component, which is installed in the high-voltage area and disposed around the swaying component. The locking component can lock the swaying component at other positions except for the limiting area of the limiting component.
4. The circuit board as described in claim 3, characterized in that, The locking component is provided at least one, and at least one of the locking components and the limiting component are provided on opposite sides of the swinging component.
5. The circuit board as described in claim 3, characterized in that, Two locking components are provided, and the two locking components and one limiting component are respectively located at three different positions around the easily swinging component.
6. The circuit board as described in claim 3, characterized in that, The locking component and the limiting component around the swinging component are the same component.
7. The circuit board as described in claim 3, characterized in that, The locking and limiting components around the swaying component are components of different sizes and / or different dimensions.
8. The circuit board as described in claim 3, characterized in that, At least one of the locking components and the limiting components are evenly arranged around the periphery of the easily swinging component.
9. The circuit board as described in claim 1 or 2, characterized in that, The swingable component is a component with two pins, and the swingable component includes at least one of resistor, inductor, and capacitor.
10. A switching device, characterized in that, include: The circuit board as described in any one of claims 1 to 9; and, The housing contains the circuit board.