Overvoltage protector with separation mechanism
By designing a protective cover and sealing strip, a snap ring and sealing ring, a positioning pin and an insulating shell, the problem of internal short circuits in the overvoltage protector caused by moisture ingress is solved, achieving waterproof, stable installation and flexible installation effects.
Patent Information
- Application Number
- CN202511185172.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2025-11-18
AI Technical Summary
In the prior art, gaps in the casing of overvoltage protectors allow moisture to enter the device, leading to internal short circuits and combustion, and reducing the lifespan of the indicator.
The design incorporates a protective cover and sealing strip to prevent moisture from entering the indicator through the button area; the engagement ring and sealing ring prevent moisture from seeping in through the connection between the front and rear shells; positioning pins ensure accurate indicator positioning; an insulating shell prevents overvoltage from affecting the indicator; and the combination of a flexible strip and fixing bolts improves the stability of the mounting bracket.
It effectively prevents moisture from entering the indicator, extends the indicator's lifespan, ensures stable installation, prevents corrosion or short circuits in electrical components, and improves installation flexibility and adaptability.
Smart Images

Figure CN120978627A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of overvoltage protectors, specifically an overvoltage protector that also has a disconnection mechanism. Background Technology
[0002] Overvoltage protectors, also known as surge protectors or lightning arresters, are electrical devices used to protect electrical equipment from high transient overvoltage hazards during lightning strikes and to limit the duration and amplitude of follow current. They are an indispensable device in lightning protection for electronic equipment.
[0003] When the indicator of an existing overvoltage protector is in use, the housing is generally made of plastic and the two housings are fixed by screws. Therefore, there will be some gaps between the two housings and the button. This allows water to enter the device and cause internal short circuits and combustion, thereby reducing the lifespan of the indicator. Summary of the Invention
[0004] The purpose of this invention is to provide an overvoltage protector that also has a disconnection mechanism to solve the problem of water entering the device through gaps, causing internal short circuits and combustion, thereby reducing the service life of the indicator.
[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution: an overvoltage protector with a disengagement mechanism, comprising an indicator disposed on the right side of a mounting bracket, the indicator consisting of a front shell and a rear shell, the front shell and the rear shell being snap-fitted together; a protector body fixed to the top surface of the mounting bracket; a disengagement mechanism body disposed on the bottom surface of the mounting bracket, the disengagement mechanism body being snap-fitted together with the protector body; the disengagement mechanism body being connected to the bottom surface of the mounting bracket via a connecting wire; several water guide grooves being provided on the front and rear sides of the front shell; two receiving grooves being provided on the right side of the front shell; a protective cover being rotatably connected to the right side of the front shell via a hinge; two limiting strips fixed to the left side of the protective cover, the limiting strips being snap-fitted together with the receiving grooves; a limiting groove being provided on the outer wall of the limiting strips; a sealing strip being fixed to the left side of the limiting strips; the sealing strip contacting the inner wall of the receiving grooves; the limiting grooves can guide rainwater on the top surface of the indicator, allowing rainwater to drain through the limiting grooves and preventing rainwater from accumulating on the top surface of the indicator.
[0006] Preferably, a snap-fit ring is fixed on the left side of the front shell, a sealing ring is fixed on the left side of the snap-fit ring, a snap-fit groove is opened on the right side of the rear shell, the snap-fit ring is snapped into the snap-fit groove, and the sealing ring is in contact with the inner wall of the snap-fit groove.
[0007] Preferably, the outer wall of the rear shell is provided with a plurality of first threaded holes, the first threaded holes are connected to the snap-fit groove, and the inner wall of the first threaded holes is threaded with a first fixing bolt. The first fixing bolt can limit and fix the snap-fit ring and the front shell, so that the snap-fit ring can be stably fixed in the snap-fit groove, thereby making the connection between the front shell and the rear shell more stable.
[0008] Preferably, a connecting block is fixed on the left side of the rear shell, and two positioning holes are opened on the top surface of the connecting block. Positioning pins are snapped into the inner walls of the positioning holes. Two snap-fit holes are opened on the top surface of the mounting bracket. The snap-fit holes correspond to the positioning holes, and the positioning pins are snapped into the snap-fit holes. The snap-fit method of positioning pins provides good mechanical stability and ensures that the indicator remains stable under various working conditions.
[0009] Preferably, an insulating shell is fixed to the outer wall of the rear shell, the connecting block penetrates the insulating shell, and an insulating bracket is fixed to the outer wall of the mounting frame. The insulating shell can prevent workers from directly contacting the electrical parts of the mounting frame, thereby avoiding the risk of electric shock.
[0010] Preferably, a snap-fit frame is fixed to the rear side of the mounting bracket, and a second threaded hole is provided on the rear side of the mounting bracket. A limit bolt is threadedly connected to the inner wall of the second threaded hole. The cooperation between the snap-fit frame and the limit bolt allows the staff to fix the mounting bracket according to the installation needs, thereby providing a variety of choices for the installation method of the mounting bracket and improving the flexibility of the mounting bracket.
[0011] Preferably, a fixing frame is fixed to the right side of the snap-fit frame, and a third threaded hole is provided on the right side of the fixing frame. A second fixing bolt is threaded to the inner wall of the third threaded hole. A flexible strip is fixed to the left side of the snap-fit frame. The flexible strip is slidably disposed with the fixing frame. The flexible strip is fixed in the fixing frame by the second fixing bolt. A sliding groove is provided on the outer wall of the flexible strip. The sliding groove can better fit with the second fixing bolt, so that the second fixing bolt can better fix the flexible strip and prevent the flexible strip from slipping.
[0012] Preferably, the mounting bracket has two through holes on its rear side, a limiting block is provided on the rear side of the mounting bracket, and two limiting posts are fixed on the front side of the limiting block. The limiting posts are slidably disposed with respect to the through holes, and a spring is wound around the outer wall of the limiting post. One end of the spring is fixed to the inner wall of the through hole, and the other end of the spring is fixed to the outer wall of the limiting post. The cooperation between the limiting block and the limiting post can limit the mounting bracket when it is fixed, providing a strong buffer space between the mounting bracket and the fixed object. This prevents the mounting bracket from shaking violently and causing damage in severe weather, thereby improving the adaptability of the mounting bracket and the protector body, and thus improving the practicality of the protector body.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] First, the combination of the protective cover and the sealing strip increases the waterproof effect of the indicator's button area, preventing moisture from entering the indicator through gaps in the button area. This ensures the indicator functions properly, unaffected by the external environment, and helps extend the service life of the indicator and its internal components. Second, the combination of the snap-fit ring and the sealing ring prevents moisture, humidity, or liquid from seeping into the indicator through the connection between the front and rear housings, protecting electrical components from corrosion or short circuits.
[0015] Second, the locating pins ensure the accurate positioning of the indicator on the mounting bracket, preventing displacement or loosening during use. The snap-fit design between the locating pins and the locking holes makes installation and removal of the indicator more convenient and quick, requiring no complicated tools or procedures. The insulating shell protects the indicator from overvoltage affecting its internal components during operation, thus ensuring the indicator's normal functioning.
[0016] Third, the cooperation between the second fixing bolt and the flexible strip makes it easy for workers to fix the mounting frame in the required position. Under the action of the second fixing bolt, the length of the flexible strip can be adjusted, so that the flexible strip and the inner wall of the snap-fit frame fit the fixed object better, thereby improving the stability of the mounting frame. Attached Figure Description
[0017] Figure 1 A three-dimensional schematic diagram of the invention;
[0018] Figure 2 An explosion diagram of the invention;
[0019] Figure 3 for Figure 2 Exploded view of the mounting bracket and connecting block;
[0020] Figure 4 for Figure 2 A plan view of the mounting bracket in the middle;
[0021] Figure 5 for Figure 2 Explosion diagram of the inner protective shell and limiting strip;
[0022] Figure 6 for Figure 2 Enlarged view of point A in the middle;
[0023] Figure 7 for Figure 2 Enlarged diagram of point B in the middle.
[0024] In the diagram: 1. Indicator; 101. Front shell; 102. Rear shell; 2. Mounting bracket; 3. Protector body; 4. Disengagement mechanism body; 5. Water guide groove; 6. Receiving groove; 7. Protective cover; 8. Limiting strip; 9. Limiting groove; 10. Sealing strip; 11. Snap-fit ring; 12. Sealing ring; 13. Snap-fit groove; 14. First threaded hole; 15. First fixing bolt; 16. Connecting block; 17. Positioning hole; 18. Positioning pin; 19. Snap-fit hole; 20. Insulating shell; 21. Insulating bracket; 22. Snap-fit frame; 23. Second threaded hole; 24. Limiting bolt; 25. Fixing frame; 26. Third threaded hole; 27. Second fixing bolt; 28. Flexible strip; 29. Slide groove; 30. Through hole; 31. Limiting block; 32. Limiting post; 33. Spring. Detailed Implementation
[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0026] like Figures 1-7 As shown, an overvoltage protector with a disengagement mechanism includes an indicator 1, which is located on the right side of a mounting bracket 2. The indicator 1 consists of a front shell 101 and a rear shell 102, which are snap-fitted together. A protector body 3 is fixed to the top surface of the mounting bracket 2, and a disengagement mechanism body 4 is located on the bottom surface of the mounting bracket 2. The disengagement mechanism body 4 is snap-fitted to the protector body 3 and connected to the bottom surface of the mounting bracket 2 via a connecting wire. Several water guide grooves 5 are provided on the front and rear sides of the front shell 101, and two receiving grooves 6 are provided on the right side of the front shell 101. A protective cover 7 is rotatably connected to the right side of the front shell 101 via a hinge. The protective cover 7 is transparent. Two limiting strips 8 are fixed to the left side of the protective cover 7. The limiting strips 8 are engaged with the receiving groove 6. A limiting groove 9 is formed on the outer wall of the limiting strip 8. A sealing strip 10 is fixed to the left side of the limiting strip 8. The sealing strip 10 is in contact with the inner wall of the receiving groove 6. A snap-fit ring 11 is fixed to the left side of the front shell 101. A sealing ring 12 is fixed to the left side of the snap-fit ring 11. A snap-fit groove 13 is formed on the right side of the rear shell 102. The snap-fit ring 11 is engaged with the snap-fit groove 13. The sealing ring 12 is in contact with the inner wall of the snap-fit groove 13.
[0027] During use, the cooperation between the protective cover 7 and the sealing strip 10 increases the waterproof effect of the button part of the indicator 1, allowing the limiting groove 9 to guide rainwater from the top surface of the indicator 1, preventing rainwater from accumulating on the top surface of the indicator 1 and preventing moisture from entering the interior of the indicator 1 through the gaps in the button part. This ensures that the indicator 1 can work normally without being affected by the external environment, thus helping to extend the service life of the indicator 1 and its internal components. The cooperation between the snap ring 11 and the sealing ring 12 prevents moisture, humidity, or liquid from seeping into the interior of the indicator 1 through the connection between the front shell 101 and the rear shell 102, protecting the electrical components from corrosion or short circuits.
[0028] like Figures 1-4 , Figure 6 and Figure 7 As shown, the outer wall of the rear shell 102 is provided with several first threaded holes 14, which are connected to the snap-fit groove 13. The inner wall of the first threaded hole 14 is threaded with a first fixing bolt 15. A connecting block 16 is fixed on the left side of the rear shell 102. Two positioning holes 17 are provided on the top surface of the connecting block 16. A positioning pin 18 is snap-fitted onto the inner wall of the positioning hole 17. Two snap-fit holes 19 are provided on the top surface of the mounting bracket 2. The snap-fit holes 19 correspond to the positioning holes 17. The positioning pin 18 is snap-fitted onto the snap-fit holes 19.
[0029] During use, the first fixing bolt 15 can limit and fix the snap-fit ring 11 and the front shell 101, so that the snap-fit ring 11 can be stably fixed in the snap-fit groove 13, thereby making the connection between the front shell 101 and the rear shell 102 more stable. The positioning pin 18 can ensure that the indicator 1 is accurately positioned on the mounting bracket 2, preventing it from shifting or loosening during use. The snap-fit setting of the positioning pin 18 and the snap-fit hole 19 makes the installation and removal of the indicator 1 more convenient and quick, without complicated tools or steps. At the same time, the snap-fit method of the positioning pin 18 provides good mechanical stability, ensuring that the indicator 1 remains stable under various working conditions.
[0030] like Figures 1-4 and Figure 7 As shown, an insulating shell 20 is fixed to the outer wall of the rear shell 102, and a connecting block 16 penetrates the insulating shell 20. An insulating bracket 21 is fixed to the outer wall of the mounting bracket 2. A snap-fit frame 22 is fixed to the rear side of the mounting bracket 2. A second threaded hole 23 is opened on the rear side of the mounting bracket 2, and a limit bolt 24 is threadedly connected to the inner wall of the second threaded hole 23.
[0031] During use, the insulating shell 20 protects the indicator 1, preventing overvoltage from the protector body 3 from affecting the internal components of the indicator 1, thus ensuring the normal operation of the indicator 1. Simultaneously, the insulating shell 20 prevents personnel from directly contacting the electrical parts of the mounting bracket 2, thereby avoiding the risk of electric shock. The engagement of the snap-fit frame 22 and the limiting bolts 24 allows personnel to easily fix the mounting bracket 2 according to installation needs, providing diverse options for the installation method of the mounting bracket 2 and thus improving its flexibility.
[0032] like Figures 1-4 and Figure 7 As shown, a fixing frame 25 is fixed to the right side of the snap-fit frame 22. A third threaded hole 26 is opened on the right side of the fixing frame 25. A second fixing bolt 27 is threadedly connected to the inner wall of the third threaded hole 26. A flexible strip 28 is fixed to the left side of the snap-fit frame 22. The flexible strip 28 is slidably disposed with the fixing frame 25. The flexible strip 28 is fixed in the fixing frame 25 by the second fixing bolt 27. A sliding groove 29 is opened on the outer wall of the flexible strip 28. Two through holes 30 are opened on the rear side of the mounting bracket 2. A limit block 31 is provided on the rear side of the mounting bracket 2. Two limit posts 32 are fixed to the front side of the limit block 31. The limit posts 32 are slidably disposed with the through holes 30. A spring 33 is wound around the outer wall of the limit post 32. One end of the spring 33 is fixed to the inner wall of the through hole 30, and the other end of the spring 33 is fixed to the outer wall of the limit post 32.
[0033] During use, the cooperation between the second fixing bolt 27 and the flexible strip 28 allows workers to easily fix the mounting frame 2 in the required position. The length of the flexible strip 28 can be adjusted under the action of the second fixing bolt 27, making the flexible strip 28 and the inner wall of the snap-fit frame 22 fit the fixed object more closely, thus improving the stability of the mounting frame 2. Simultaneously, the sliding groove 29 better engages with the second fixing bolt 27, allowing the second fixing bolt 27 to better secure the flexible strip 28 and prevent slippage. The cooperation between the limiting block 31 and the limiting post 32 limits the mounting frame 2 during fixing, providing a strong buffer space between the mounting frame 2 and the fixed object, preventing severe shaking and damage to the mounting frame 2 in inclement weather. This improves the adaptability of the mounting frame 2 and the protector body 3, thereby enhancing the practicality of the protector body 3.
[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. An overvoltage protector with a disengagement mechanism, comprising an indicator (1) disposed on the right side of a mounting bracket (2), characterized in that, The indicator (1) consists of a front shell (101) and a rear shell (102), which are snap-fitted together. A protector body (3) is fixed to the top surface of the mounting bracket (2), and a release mechanism body (4) is provided on the bottom surface of the mounting bracket (2). The release mechanism body (4) is snap-fitted to the protector body (3), and is connected to the bottom surface of the mounting bracket (2) via a connecting line. Several openings are provided on both the front and rear sides of the front shell (101). A water guide channel (5) is provided. Two receiving slots (6) are provided on the right side of the front shell (101). A protective cover (7) is rotatably connected to the right side of the front shell (101) via a hinge. Two limiting strips (8) are fixed on the left side of the protective cover (7). The limiting strips (8) are snapped into the receiving slots (6). A limiting groove (9) is provided on the outer wall of the limiting strips (8). A sealing strip (10) is fixed on the left side of the limiting strips (8). The sealing strip (10) is in contact with the inner wall of the receiving slots (6).
2. An overvoltage protector with a disconnection mechanism according to claim 1, characterized in that: A snap ring (11) is fixed on the left side of the front shell (101), and a sealing ring (12) is fixed on the left side of the snap ring (11). A snap groove (13) is opened on the right side of the rear shell (102). The snap ring (11) is snapped into the snap groove (13), and the sealing ring (12) is in contact with the inner wall of the snap groove (13).
3. An overvoltage protector with a disconnection mechanism according to claim 2, characterized in that: The outer wall of the rear shell (102) is provided with a plurality of first threaded holes (14), the first threaded holes (14) are connected to the snap-fit groove (13), and the inner wall of the first threaded holes (14) is threaded with a first fixing bolt (15).
4. An overvoltage protector with a disconnection mechanism according to claim 3, characterized in that: A connecting block (16) is fixed on the left side of the rear shell (102). Two positioning holes (17) are opened on the top surface of the connecting block (16). A positioning pin (18) is snapped into the inner wall of the positioning hole (17). Two snap-fit holes (19) are opened on the top surface of the mounting bracket (2). The snap-fit holes (19) correspond to the positioning holes (17). The positioning pin (18) is snapped into the snap-fit holes (19).
5. An overvoltage protector with a disconnection mechanism according to claim 4, characterized in that: An insulating shell (20) is fixed to the outer wall of the rear shell (102), the connecting block (16) penetrates the insulating shell (20), and an insulating bracket (21) is fixed to the outer wall of the mounting bracket (2).
6. An overvoltage protector with a disconnection mechanism according to claim 1, characterized in that: The mounting bracket (2) is fixed with a snap-fit frame (22) on the rear side, and a second threaded hole (23) is opened on the rear side of the mounting bracket (2). A limit bolt (24) is threadedly connected to the inner wall of the second threaded hole (23).
7. An overvoltage protector with a disconnection mechanism according to claim 6, characterized in that: A fixing frame (25) is fixed on the right side of the snap-fit frame (22). A third threaded hole (26) is provided on the right side of the fixing frame (25). A second fixing bolt (27) is threadedly connected to the inner wall of the third threaded hole (26). A flexible strip (28) is fixed on the left side of the snap-fit frame (22). The flexible strip (28) is slidably disposed with the fixing frame (25). The flexible strip (28) is fixed in the fixing frame (25) by the second fixing bolt (27). A sliding groove (29) is provided on the outer wall of the flexible strip (28).
8. An overvoltage protector with a disconnection mechanism according to claim 1, characterized in that: The mounting bracket (2) has two through holes (30) on its rear side. A limit block (31) is provided on the rear side of the mounting bracket (2). Two limit posts (32) are fixed on the front side of the limit block (31). The limit posts (32) are slidably disposed with the through holes (30). A spring (33) is wound around the outer wall of the limit post (32). One end of the spring (33) is fixed to the inner wall of the through hole (30), and the other end of the spring (33) is fixed to the outer wall of the limit post (32).