High-stability surge protector

Abstract

The utility model relates to the technical field of surge protectors, and discloses a high-stability surge protector which comprises a shell and a circuit board, two relatively parallel fixing strips are fixed to the inner side wall of the shell, a limiting groove for the circuit board to be inserted in a matched mode is formed between the two fixing strips, the inner walls of the two sides of the limiting groove abut against the surface of the circuit board, and the inner walls of the two sides of the limiting groove abut against the surface of the circuit board. According to the utility model, the two relatively parallel fixing strips are fixed on the inner side wall of the shell, the limiting groove is formed between the fixing strips, and the inner walls of the two sides of the limiting groove abut against the surface of the circuit board, so that rapid positioning and fixing of the circuit board are realized, and the installation efficiency of the circuit board is improved; and meanwhile, the inner walls on the two sides of the limiting groove are used for clamping the circuit board, so that the circuit board can be effectively prevented from moving in the shell, and stable connection between the circuit board and the shell can be ensured even in a vibration environment, thereby improving the reliability and stability of a product.

Description

Technical Field

[0001] This application relates to the technical field of surge protectors, and in particular to a highly stable surge protector. Background Technology

[0002] Surge protectors are mainly used to protect electronic equipment from damage caused by sudden voltage spikes. They are usually connected to the circuit in parallel. When the voltage exceeds a certain threshold, they will quickly conduct to discharge excess current, thereby protecting the equipment.

[0003] Existing surge protectors primarily focus on securing the circuit board and basic heat dissipation in their housing design. However, when surge protectors are used in vibrating environments, the mechanical stress generated by the vibration may cause components on the circuit board, especially solder joints, to break due to fatigue. This can lead to the circuit board becoming loose, and the loosening of components and connecting wires on the circuit board due to vibration may result in poor contact or disconnection. Consequently, the protector may fail at critical moments, failing to effectively protect connected equipment and affecting the stability and lifespan of the equipment. Utility Model Content

[0004] To ensure the stability of the circuit board within the surge protector, a highly stable surge protector is provided.

[0005] The above-mentioned objective of this application is achieved through the following technical solution:

[0006] A high-stability surge protector includes a housing and a circuit board. Two relatively parallel fixing strips are fixed on the inner side wall of the housing. A limiting groove is opened between the two fixing strips for the circuit board to fit and insert. The inner walls on both sides of the limiting groove abut against the surface of the circuit board. The limiting groove is used for quick positioning and fixing of the circuit board.

[0007] By adopting the above technical solution, two relatively parallel fixing strips are fixed on the inner side wall of the housing, and a limiting groove is set between the fixing strips. The inner walls on both sides of the limiting groove abut against the surface of the circuit board, realizing the rapid positioning and fixing of the circuit board and improving the installation efficiency of the circuit board. At the same time, the inner walls on both sides of the limiting groove clamp the circuit board, which can effectively limit the movement of the circuit board in the housing. Even in a vibrating environment, it can ensure a stable connection between the circuit board and the housing, thereby improving the reliability and stability of the product.

[0008] Optionally, the bottom of the two fixing strips along the circuit board insertion direction is also provided with fixing grooves, and the distance between the fixing grooves perpendicular to the circuit board insertion direction is less than the distance between the limiting grooves perpendicular to the circuit boards.

[0009] By adopting the above technical solution, the fixing groove provides additional support to the bottom of the circuit board, which can further restrict the circuit board from continuing to move along the direction of the insertion limiting groove, reduce the impact of housing vibration on the circuit board, thereby protecting the circuit board from mechanical stress and improving the product's shock resistance.

[0010] Optionally, it also includes a top cover, which has a buckle fixed to the side of the cover facing the housing, and the housing has a slot, with the buckle engaging with the slot.

[0011] By adopting the above technical solution, the buckle and slot fastening design allows the top cover to be quickly connected or separated from the housing, simplifying the assembly and maintenance process of the surge protector, improving production and maintenance efficiency, and effectively fixing the connection between the top cover and the housing. In a vibration environment, it prevents the top cover from loosening or falling off, thereby improving the product's seismic performance and the stability of the overall structure.

[0012] Optionally, there are at least two buckles, located on opposite sides of the top cover, and the number of buckles is equal to the number of slots.

[0013] By adopting the above technical solution, the top cover can be fixed from multiple directions, avoiding tilting or loosening of the top cover due to unilateral force, thereby improving the connection stability between the top cover and the shell. At the same time, it can disperse the impact of vibration or external force on the connection between the top cover and the shell, reduce loosening or damage to the connection caused by vibration, thereby improving the product's shock resistance and overall structural stability.

[0014] Optionally, the end of the buckle facing the housing is chamfered.

[0015] By adopting the above technical solution, the chamfer ensures that the buckle can accurately enter the slot, reduces the friction when the buckle is inserted into the slot, makes the installation smoother, and avoids the buckle being stuck or difficult to insert.

[0016] Optionally, a limiting member is fixed on the side of the top cover facing the housing, and the limiting member is engaged with the circuit board.

[0017] By adopting the above technical solution, the limiting component is connected to the circuit board through a snap-fit ​​method, providing additional fixing points and further limiting the movement range of the circuit board in the insertion direction, preventing the circuit board from loosening or shifting within the housing, and ensuring the stability of equipment operation.

[0018] Optionally, elastic buffer members that contact the circuit board are provided on both sides of the limiting groove, and a buffer spring is installed between the elastic buffer member and the inner wall of the limiting groove.

[0019] By adopting the above technical solutions, the elastic buffer and buffer spring can effectively absorb and disperse vibration or impact energy, reduce the direct impact of vibration on the circuit board, thereby improving the stability of the surge protector in a vibration environment. At the same time, the contact between the elastic buffer and the circuit board can reduce the mechanical stress of the circuit board when it is inserted or pulled out, prevent damage to the circuit board caused by hard contact, and extend the service life of the circuit board.

[0020] Optionally, the surface of the elastic buffer is serrated.

[0021] By adopting the above technical solutions, the wavy or sawtooth surface design significantly increases the contact area between the elastic buffer and the circuit board. The larger contact area can provide stronger friction, thereby more firmly fixing the circuit board, reducing loosening caused by vibration, and thus improving the stability of the equipment.

[0022] Optionally, the inner wall of the outer casing is provided with multiple elastic support columns, all of which are fixedly connected to the outer wall of the fixing strip.

[0023] By adopting the above technical solution, the anti-vibration bracket is connected to the fixing strip. The anti-vibration bracket absorbs and disperses vibration energy through the elastic support column, reducing the impact of vibration on internal components, further enhancing the stability of the entire structure, and improving the stability of the surge protector in a vibration environment.

[0024] Optionally, a plurality of heat sinks are fixed on the outer wall of the housing, and are respectively located on the side of the fixing strip facing away from the circuit board.

[0025] By adopting the above technical solution and setting up heat sinks, performance degradation or damage to the fixing strip and circuit board due to overheating can be prevented. Heat is effectively transferred from the fixing strip to the surrounding environment, thereby reducing the operating temperature of the surge protector and improving the reliability of the equipment.

[0026] In summary, this application has at least the following beneficial effects:

[0027] 1. Through the design of two relatively parallel fixing strips and limiting grooves on the inner side wall of the housing, the circuit board can achieve rapid positioning and stable fixation, avoiding the loosening problem caused by vibration or impact in traditional fixing methods, and significantly improving the stability and reliability of the product.

[0028] 2. Elastic buffers are installed on both sides of the limiting groove, and buffer springs are installed between the elastic buffers and the inner wall of the limiting groove. This can effectively absorb and disperse vibration energy, reduce the direct impact of vibration on the circuit board, and improve the stability of the surge protector in a vibration environment. Attached image description:

[0029] Figure 1An explosion diagram of a highly stable surge protector;

[0030] Figure 2 This is a sectional view of the shell;

[0031] Figure 3 This is a schematic diagram of the upper cover structure;

[0032] Figure 4 This is a cross-sectional view of the shell in Embodiment 2;

[0033] Figure 5 for Figure 4 A magnified view of a portion at point A.

[0034] Reference numerals in the attached drawings: 1. Housing; 11. Fixing strip; 12. Limiting groove; 13. Fixing groove; 14. Slot; 2. Top cover; 21. Buckle; 22. Limiting component; 3. Circuit board; 4. Elastic buffer component; 5. Buffer spring; 6. Elastic support column; 7. Heat sink. Detailed implementation method:

[0035] The following section provides a more detailed description, in conjunction with the accompanying diagrams:

[0036] Example 1

[0037] As attached Figure 1 As shown, a highly stable surge protector includes a housing 1, a top cover 2, and a circuit board 3.

[0038] As attached Figure 2 As shown, two sets of relatively parallel fixing strips 11 are fixed on the inner sidewall of the housing 1. There are two fixing strips 11 in each set, and the two fixing strips 11 are relatively parallel. The two sets of fixing strips 11 can adapt to the installation of different circuit boards 3, which improves the applicability of the product. The fixing strips 11 are made of high-strength and corrosion-resistant materials. Their length and width match the inner wall dimensions of the housing 1. A limiting groove 12 is opened between the two fixing strips 11 for the circuit board 3 to fit and insert. The shape of the limiting groove 12 matches the circuit board 3. Its depth and width are designed to provide sufficient insertion space for the circuit board 3. The inner walls on both sides of the limiting groove 12 abut against the surface of the circuit board 3, which can realize the rapid positioning and fixing of the circuit board 3.

[0039] The end of the fixing strip 11 facing away from the bottom of the housing 1 is also provided with a chamfer. The chamfer can make the circuit board 3 easier to insert and remove, reduce friction, and prevent the circuit board 3 from getting stuck or damaged.

[0040] A fixing groove 13 is also provided at the bottom of the two fixing strips 11 along the insertion direction of the circuit board 3. The vertical spacing of the fixing grooves 13 is smaller than the vertical spacing of the limiting grooves 12. When the bottom end of the circuit board 3 is inserted into the limiting groove 12, the top end of the bottom of the fixing strip 11 will abut against the bottom of the circuit board 3, thereby providing additional support for the circuit board 3.

[0041] As attached Figure 2 and attached Figure 3 As shown, the upper cover 2 is located above the housing 1. Multiple buckles 21 are fixed on the side of the upper cover 2 facing the housing 1, respectively located around the upper cover 2. The housing 1 has slots 14 that engage with the buckles 21, and the number of buckles 21 is equal to the number of slots 14. The end of the buckle 21 facing the housing 1 is chamfered, which can guide the buckle 21 to accurately enter the slot 14 and reduce friction.

[0042] A limiting member 22 is fixed on the side of the top cover 2 facing the housing 1, and the limiting member 22 is engaged with the circuit board 3. The limiting member 22 provides an additional fixing point, further limiting the range of movement of the circuit board 3 in the insertion direction, preventing the circuit board 3 from becoming loose or shifting in the housing 1, and ensuring the stability of the equipment operation.

[0043] The housing 1 and the top cover 2 together constitute the main structure of the surge protector. The circuit board 3 is installed inside the housing 1 and is quickly positioned and fixed by the fixing strip 11 and the limiting groove 12.

[0044] Example 2

[0045] This second embodiment is an improvement on the shell 1 based on the first embodiment. The other structures are the same as those in the first embodiment, and will not be described in detail here.

[0046] As attached Figure 4 and attached Figure 5 As shown, elastic buffers 4 that contact the circuit board 3 are provided on both sides of the limiting groove 12. The elastic buffers 4 are made of highly elastic material and can effectively absorb vibration energy. Multiple buffer springs 5 ​​are installed between the elastic buffers 4 and the inner wall of the limiting groove 12. The buffer springs 5 ​​are used to further stabilize the circuit board 3 and prevent loosening caused by vibration.

[0047] Multiple elastic support columns 6 are fixed on the inner wall of the housing 1. One end of the elastic support column 6 is fixedly connected to the inner wall parallel to the circuit board 3, and the other end is fixedly connected to the outer wall of the fixing strip 11. The elastic support column 6 and the fixing strip 11 are connected to form an integrated shockproof support system. The elastic support column 6 can absorb and disperse vibration energy, reduce the impact of vibration on internal components, and improve the stability of the surge protector in a vibration environment.

[0048] Multiple heat sinks 7 are fixed on the outer wall of the housing 1 and are located on the side of the fixing strip 11 facing away from the circuit board 3. The heat sinks 7 can effectively transfer heat from the fixing strip 11 to the surrounding environment, thereby reducing the operating temperature of the surge protector and preventing overheating damage.

[0049] Work results:

[0050] Through the above structural design, the high-stability surge protector of this application not only realizes the rapid positioning and fixing of the circuit board 3, but also significantly improves the product's shock resistance, heat dissipation performance and overall structural stability through various optimized designs. At the same time, it simplifies the installation and maintenance process and improves the product's reliability and service life.

[0051] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.

Claims

1. A high-stability surge protector, comprising a housing (1) and a circuit board (3), characterized in that, Two relatively parallel fixing strips (11) are fixed on the inner side wall of the housing (1). A limiting groove (12) for the circuit board (3) to fit and insert is opened between the two fixing strips (11). The inner walls on both sides of the limiting groove (12) abut against the surface of the circuit board (3). The limiting groove (12) is used for the quick positioning and fixing of the circuit board (3).

2. The high-stability surge protector according to claim 1, characterized in that, The two fixing strips (11) also have fixing grooves (13) at the bottom along the insertion direction of the circuit board (3), and the distance between the fixing grooves (13) and the insertion direction of the circuit board (3) is less than the distance between the limiting grooves (12) and the circuit board (3).

3. The high-stability surge protector according to claim 1, characterized in that, It also includes an upper cover (2), on which a buckle (21) is fixed on the side facing the housing (1), and a slot (14) is opened on the housing (1), and the buckle (21) is engaged with the slot (14).

4. A high-stability surge protector according to claim 3, characterized in that, The number of buckles (21) is at least two, located on opposite sides of the top cover (2), and the number of buckles (21) is equal to the number of slots (14).

5. A high-stability surge protector according to claim 3, characterized in that, The end of the buckle (21) facing the housing (1) is chamfered.

6. A high-stability surge protector according to claim 3, characterized in that, The upper cover (2) is fixed with a limiting member (22) on the side facing the housing (1), and the limiting member (22) is engaged with the circuit board (3).

7. A high-stability surge protector according to claim 1, characterized in that, The two side walls of the limiting groove (12) are provided with elastic buffer members (4) that contact the circuit board (3), and a buffer spring (5) is installed between the elastic buffer member (4) and the inner wall of the limiting groove (12).

8. A high-stability surge protector according to claim 7, characterized in that, The surface of the elastic buffer (4) is serrated.

9. A high-stability surge protector according to claim 1, characterized in that, Multiple elastic support columns (6) are provided on the inner wall of the housing (1), and all of them are fixedly connected to the outer wall of the fixing strip (11).

10. A high-stability surge protector according to claim 1, characterized in that, Multiple heat sinks (7) are fixed on the outer wall of the housing (1), and are located on the side of the fixing strip (11) facing away from the circuit board (3).

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