Multi-pulse surge protection equipment

Abstract

A multi-pulse surge protection device is characterized in that a base lower cover is connected with a base upper cover, a first protruding part is formed on one side of the base upper cover, and a second protruding part is formed on the other side of the base upper cover; the outer shell is connected between the first lug boss and the second lug boss; the main control circuit board is arranged between the base lower cover and the base upper cover; the first wiring locking assembly is arranged on the first protruding part, and a first wiring hole is formed in the position, corresponding to the first wiring locking assembly, of the first protruding part. The second wiring locking assembly is arranged on the second protruding part, and a second wiring hole is formed in the position, corresponding to the second wiring locking assembly, of the second protruding part. The lightning protection fuse, the convergence bracket and the piezoresistor are all arranged in the outer shell; the plurality of lightning protection fuses are connected in parallel through the confluence support, and the lightning protection fuses connected in parallel are connected with the main control circuit board through the confluence support; and the piezoresistor is connected with the main control circuit board. According to the utility model, the electromagnetic compatibility and the insulation capability are stronger; the product is more stable; the use is convenient.

Description

Technical Field

[0001] The utility model relates to a multi-pulse surge protection device, belonging to the technical field of lightning protection equipment. Background Art

[0002] A surge protector is an electronic device that provides safety protection for various electronic devices, instruments, and communication lines. When a spike current or voltage suddenly occurs in an electrical circuit or communication line due to external interference, it can conduct and shunt in a very short time, thereby preventing the surge from damaging other devices in the circuit.

[0003] Existing surge protectors have poor power system safety in strong electromagnetic pulse environments, weak electromagnetic compatibility and insulation capabilities; and require the design of a tripping structure, resulting in poor product stability; the internal lightning protection fuse needs to be disconnected before installation, which is inconvenient to use. Utility Model Content

[0004] The utility model aims to provide a multi-pulse surge protection device to solve the problems of weak electromagnetic compatibility and insulation capacity, poor stability and inconvenience in use of traditional designs.

[0005] The utility model solves the above technical problems with the following technical solutions: a multi-pulse surge protection device, including a base lower cover, a base upper cover, an outer shell, a main control circuit board, a first wiring locking assembly, a second wiring locking assembly, a lightning protection fuse, a bus bracket and a varistor;

[0006] The base lower cover is connected to the base upper cover, a first protrusion is formed on one side of the base upper cover, and a second protrusion is formed on the other side of the base upper cover; the outer shell is connected between the first protrusion and the second protrusion;

[0007] The main control circuit board is arranged between the base lower cover and the base upper cover; the first wiring locking assembly is arranged on the first protrusion, and the first protrusion is provided with a first wiring hole at a position corresponding to the first wiring locking assembly; the second wiring locking assembly is arranged on the second protrusion, and the second protrusion is provided with a second wiring hole at a position corresponding to the second wiring locking assembly;

[0008] The lightning protection fuse, the bus bracket, and the varistor are all arranged inside the outer shell; a plurality of the lightning protection fuses are connected in parallel through the bus bracket, and the parallel lightning protection fuses are connected to the main control circuit board through the bus bracket; the varistor is connected to the main control circuit board.

[0009] As a preferred solution for a multi-pulse surge protection device, the first wiring locking assembly includes a first locking bracket, a first locking block and a first locking screw; one end of the first locking bracket is welded to the main control circuit board, and the other end of the first locking bracket is located inside the first locking block, and the first locking screw presses the first locking bracket through the first locking block.

[0010] As a preferred solution for a multi-pulse surge protection device, the second wiring locking assembly includes a second locking bracket, a second locking block and a second locking screw; one end of the second locking bracket is welded to the main control circuit board, and the other end of the second locking bracket is located inside the second locking block, and the second locking screw presses the second locking bracket through the second locking block.

[0011] As a preferred solution for the multi-pulse surge protection device, three lightning protection fuses are provided, and the three lightning protection fuses are connected in parallel through the bus bracket.

[0012] As a preferred solution for the multi-pulse surge protection device, the varistor is connected to the main control circuit board via its own auxiliary contacts.

[0013] As a preferred solution of the multi-pulse surge protection device, it also includes an alarm light, which is arranged inside the outer shell and is electrically connected to the main control circuit board.

[0014] The beneficial effects of the utility model are as follows: it is provided with a base lower cover, a base upper cover, an outer shell, a main control circuit board, a first wiring locking assembly, a second wiring locking assembly, a lightning protection fuse, a bus bracket and a varistor; the base lower cover and the base upper cover are connected, a first protrusion is formed on one side of the base upper cover, and a second protrusion is formed on the other side of the base upper cover; the outer shell is connected between the first protrusion and the second protrusion; the main control circuit board is arranged between the base lower cover and the base upper cover; the first wiring locking assembly is arranged on the first protrusion, and a first wiring hole is arranged at a position of the first protrusion corresponding to the first wiring locking assembly; the second wiring locking assembly is arranged on the second protrusion, and a second wiring hole is arranged at a position of the second protrusion corresponding to the second wiring locking assembly; the lightning protection fuse, the bus bracket and the varistor are all arranged inside the outer shell; a plurality of lightning protection fuses are connected in parallel through the bus bracket, and the parallel lightning protection fuses are connected to the main control circuit board through the bus bracket; the varistor is connected to the main control circuit board. The utility model solves the safety problem of the power supply system in a strong electromagnetic pulse environment. The main control circuit board is used as the conductive structure, which is different from the traditional hardware structure and has stronger electromagnetic compatibility and insulation capabilities. It uses a varistor with auxiliary contacts and does not need to design a tripping structure, making the product more stable. It has a built-in lightning protection fuse and does not need to install a front circuit breaker, making it easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0017] Figure 1 A schematic diagram of the overall structure of a multi-pulse surge protection device provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of a multi-pulse surge protection device provided by an embodiment of the utility model from a first perspective;

[0019] Figure 3 A second perspective exploded schematic diagram of a multi-pulse surge protection device provided by an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of a third perspective decomposition of a multi-pulse surge protection device provided in an embodiment of the utility model.

[0021] In the figure, 1. base lower cover; 2. base upper cover; 3. outer shell; 4. main control circuit board; 5. first wiring locking assembly; 6. second wiring locking assembly; 7. lightning protection fuse; 8. bus bracket; 9. varistor; 10. first protrusion; 11. second protrusion; 12. first wiring hole; 13. second wiring hole; 14. first locking bracket; 15. first locking block; 16. first locking screw; 17. second locking bracket; 18. second locking block; 19. second locking screw; 20. alarm light. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the utility model provides a multi-pulse surge protection device, including a base lower cover 1, a base upper cover 2, an outer shell 3, a main control circuit board 4, a first wiring locking assembly 5, a second wiring locking assembly 6, a lightning protection fuse 7, a bus bracket 8 and a varistor 9;

[0025] The base lower cover 1 is connected to the base upper cover 2, a first protrusion 10 is formed on one side of the base upper cover 2, and a second protrusion 11 is formed on the other side of the base upper cover 2; the outer shell 3 is connected between the first protrusion 10 and the second protrusion 11;

[0026] The main control circuit board 4 is arranged between the base lower cover 1 and the base upper cover 2; the first wiring locking component 5 is arranged on the first protrusion 10, and the first protrusion 10 is provided with a first wiring hole 12 at a position corresponding to the first wiring locking component 5; the second wiring locking component 6 is arranged on the second protrusion 11, and the second protrusion 11 is provided with a second wiring hole 13 at a position corresponding to the second wiring locking component 6;

[0027] Among them, the lightning protection fuse 7, the bus bracket 8, and the varistor 9 are all arranged inside the outer shell 3; several lightning protection fuses 7 are connected in parallel through the bus bracket 8, and the parallel lightning protection fuses 7 are connected to the main control circuit board 4 through the bus bracket 8; the varistor 9 is connected to the main control circuit board 4.

[0028] In this embodiment, the first wiring locking assembly 5 includes a first locking bracket 14, a first locking block 15 and a first locking screw 16; one end of the first locking bracket 14 is welded to the main control circuit board 4, and the other end of the first locking bracket 14 is located inside the first locking block 15, and the first locking screw 16 presses the first locking bracket 14 through the first locking block 15.

[0029] Specifically, the input end of the line that needs lightning protection is connected through the first wiring locking assembly 5, the input end wire is inserted into the first locking block 15 through the first wiring hole 12, and then the first locking bracket 14 is tightened by the first locking screw 16, thereby fixing the input end wire.

[0030] In this embodiment, the second wiring locking assembly 6 includes a second locking bracket 17, a second locking block 18 and a second locking screw 19; one end of the second locking bracket 17 is welded to the main control circuit board 4, and the other end of the second locking bracket 17 is located inside the second locking block 18, and the second locking screw 19 presses the second locking bracket 17 through the second locking block 18.

[0031] Specifically, the output end of the line that needs lightning protection is connected through the second wiring locking assembly 6, the output end wire is inserted into the second locking block 18 through the second wiring hole 13, and then the second locking bracket 17 is tightened by the second locking screw 19, thereby fixing the output end wire.

[0032] In this embodiment, three lightning protection fuses 7 are provided, and the three lightning protection fuses 7 are connected in parallel through the bus bracket 8; the varistor 9 is connected to the main control circuit board 4 through its own auxiliary contacts.

[0033] Specifically, the first wiring locking assembly 5, the second wiring locking assembly 6 and the main control circuit board 4 are electrically connected, and cooperate with the lightning protection fuse 7, the bus bracket 8 and the varistor 9 to play a surge protection role. The main control circuit board 4 is used as a conductive structure, which is different from the traditional hardware structure, and has stronger electromagnetic compatibility and insulation capabilities. At the same time, the varistor 9 with auxiliary contacts is used, and there is no need to design a tripping structure, making the product more stable.

[0034] Among them, the circuit principle of surge protection itself belongs to the prior art. The varistor 9 is a metal oxide semiconductor nonlinear resistor with ZnO as the main component. The varistor 9 is very sensitive to voltage. The working principle is equivalent to the series-parallel connection of multiple semiconductor PNs. It has a large current capacity, a small normal leakage current, a low residual voltage, a fast response time to transient overvoltage, and no continuous current. When an excessive current occurs in the circuit system, the lightning protection fuse 7 will melt to ensure that the circuit will not be damaged.

[0035] In this embodiment, an alarm light 20 is further included. The alarm light 20 is arranged inside the outer shell 3 and is electrically connected to the main control circuit board 4. The alarm light 20 is used to indicate whether the device is working normally. During use, the device may fail due to the need to withstand external impact. The alarm light 20 can help users discover device failures in a timely manner and take corresponding measures to repair them.

[0036] In summary, the utility model is provided with a base lower cover 1, a base upper cover 2, an outer shell 3, a main control circuit board 4, a first wiring locking assembly 5, a second wiring locking assembly 6, a lightning protection fuse 7, a bus bracket 8 and a varistor 9; the base lower cover 1 is connected to the base upper cover 2, a first protrusion 10 is formed on one side of the base upper cover 2, and a second protrusion 11 is formed on the other side of the base upper cover 2; the outer shell 3 is connected between the first protrusion 10 and the second protrusion 11; the main control circuit board 4 is arranged between the base lower cover 1 and the base upper cover 2; the first wiring locking assembly 5 is connected to the base lower cover 1 and the base upper cover 2; the second wiring locking assembly 6 is connected to the base lower cover 1 and the base upper cover 2; the first wiring locking assembly 6 ... first wiring locking assembly 6 is connected to the base lower cover 1 and the base upper cover 2; the first wiring locking assembly 6 is connected to the base lower cover 1 and the base upper cover 2; the first wiring locking assembly 6 is connected to the base lower cover The component 5 is arranged on the first protrusion 10, and the first protrusion 10 is provided with a first wiring hole 12 at a position corresponding to the first wiring locking component 5; the second wiring locking component 6 is arranged on the second protrusion 11, and the second protrusion 11 is provided with a second wiring hole 13 at a position corresponding to the second wiring locking component 6; the lightning protection fuse 7, the bus bracket 8, and the varistor 9 are all arranged inside the outer shell 3; a plurality of lightning protection fuses 7 are connected in parallel through the bus bracket 8, and the parallel lightning protection fuses 7 are connected to the main control circuit board 4 through the bus bracket 8; the varistor 9 is connected to the main control circuit board 4. The input end of the lightning protection line is connected through the first wiring locking component 5, and the input end wire is inserted into the first locking block 15 through the first wiring hole 12, and then the first locking screw 16 is used to press the first locking bracket 14, thereby fixing the input end wire. The output end of the lightning protection circuit is connected through the second wiring locking assembly 6, and the output end wire is inserted into the second locking block 18 through the second wiring hole 13, and then the second locking screw 19 is used to press the second locking bracket 17, thereby fixing the output end wire. The first wiring locking assembly 5, the second wiring locking assembly 6 and the main control circuit board 4 are electrically connected, and the lightning protection fuse 7, the bus bracket 8 and the varistor 9 play a surge protection role. The main control circuit board 4 is used as the conductive structure, which is different from the traditional hardware structure, and the electromagnetic compatibility and insulation capacity are stronger. At the same time, the varistor 9 with auxiliary contacts is used, and there is no need to design a tripping structure, making the product more stable. The varistor 9 is a metal oxide semiconductor nonlinear resistor with ZnO as the main component. The varistor 9 is very sensitive to voltage, and the working principle is equivalent to the series and parallel connection of multiple semiconductor PNs. It has a large current capacity, a small normal leakage current, a low residual pressure, a fast response time to transient overvoltage, and no continuous current. When an excessive current occurs in the circuit system, the lightning protection fuse 7 will melt to ensure that the circuit will not be damaged.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A multi-pulse surge protection device, characterized in that: It comprises a base lower cover (1), a base upper cover (2), an outer shell (3), a main control circuit board (4), a first wiring locking assembly (5), a second wiring locking assembly (6), a lightning protection fuse (7), a busbar support (8) and a varistor (9); The base lower cover (1) is connected to the base upper cover (2); a first protrusion (10) is formed on one side of the base upper cover (2), and a second protrusion (11) is formed on the other side of the base upper cover (2); the outer shell (3) is connected between the first protrusion (10) and the second protrusion (11); The main control circuit board (4) is arranged between the base lower cover (1) and the base upper cover (2); the first wiring locking component (5) is arranged on the first protrusion (10), and the first protrusion (10) is provided with a first wiring hole (12) at a position corresponding to the first wiring locking component (5); the second wiring locking component (6) is arranged on the second protrusion (11), and the second protrusion (11) is provided with a second wiring hole (13) at a position corresponding to the second wiring locking component (6); The lightning protection fuse (7), the bus bracket (8), and the varistor (9) are all arranged inside the outer shell (3); a plurality of the lightning protection fuses (7) are connected in parallel via the bus bracket (8), and the parallel-connected lightning protection fuses (7) are connected to the main control circuit board (4) via the bus bracket (8); and the varistor (9) is connected to the main control circuit board (4).

2. A multi-pulse surge protection device according to claim 1, characterized in that: The first wiring locking assembly (5) comprises a first locking bracket (14), a first locking block (15) and a first locking screw (16); one end of the first locking bracket (14) is welded to the main control circuit board (4), and the other end of the first locking bracket (14) is located inside the first locking block (15); the first locking screw (16) presses the first locking bracket (14) through the first locking block (15).

3. A multi-pulse surge protection device according to claim 1, characterized in that: The second wiring locking assembly (6) comprises a second locking bracket (17), a second locking block (18) and a second locking screw (19); one end of the second locking bracket (17) is welded to the main control circuit board (4), and the other end of the second locking bracket (17) is located inside the second locking block (18); the second locking screw (19) presses the second locking bracket (17) through the second locking block (18).

4. A multi-pulse surge protection device according to claim 1, characterized in that: Three lightning protection fuses (7) are provided, and the three lightning protection fuses (7) are connected in parallel via the busbar support (8).

5. The multi-pulse surge protection device according to claim 1, characterized in that: The varistor (9) is connected to the main control circuit board (4) via its own auxiliary contacts.

6. The multi-pulse surge protection device according to claim 1, characterized in that: It also comprises an alarm light (20), wherein the alarm light (20) is arranged inside the outer shell (3), and the alarm light (20) is electrically connected to the main control circuit board (4).

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