Integrated surge protector

Abstract

The utility model relates to an integrated surge protector, which comprises a shell, and a handle, an operating mechanism, a contact mechanism and a surge protection mechanism are arranged in the shell, wherein the operating mechanism, the contact mechanism and the surge protection mechanism are connected with the handle. According to the utility model, the handle, the operating mechanism, the contact mechanism and the surge protection module are integrated in the single shell, so that the requirements for external wiring and installation space are remarkably reduced, the switch is suitable for power distribution scenes with limited space, the handle is linked with the operating mechanism to control the opening and closing of the contact, and the safety maintenance in a live-line state is realized; the arc risk possibly caused by traditional plug-in operation is avoided, the gas discharge tube and the surge chip are designed in series to form a protection system and cover a wider surge energy range, the static contact is directly connected with the gas discharge tube through the conductive support, the moving contact is connected with the conductive terminal, the contact resistance is reduced, the temperature rise is reduced, and the long-term stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of power surge protection technology, and in particular to an integrated surge protector. Background Technology

[0002] Existing surge protectors mostly adopt a split structure, with the gas discharge tube, surge chip, and contact mechanism independently set up. This results in a large installation space occupation, complex wiring, and low efficiency in the linkage control between the moving contact and the surge protection module, making it difficult to meet the needs of compact distribution boxes. Traditional protectors lack a coordinated current limiting component between the gas discharge tube and the surge chip. Transient overvoltages generated by lightning strikes or switching operations can easily directly impact the surge chip, causing premature chip failure and shortening the equipment's lifespan. Furthermore, existing devices require disassembly and connection to external testing equipment to verify protection performance, which is cumbersome and poses a risk of electric shock. The arc generated when the moving contact breaks can easily burn the contact surface, shortening mechanical life. At the same time, the lack of overload monitoring components at the input end makes it impossible to provide real-time feedback on the line status, posing a safety hazard. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an integrated surge protector that is compact, safe and reliable and has high-efficiency surge protection capability.

[0004] To achieve the above objectives, this utility model employs an integrated surge protector, comprising a housing, within which are a handle, an operating mechanism connected to the handle, a contact mechanism, and a surge protection mechanism. The contact mechanism includes a moving contact and a stationary contact. The moving contact is linked to the operating mechanism via a connecting rod. The surge protection mechanism includes a gas discharge tube and a surge chip. The stationary contact is connected to the first electrode of the gas discharge tube via a conductive bracket. The surge chip is fixed to the end of the gas discharge tube near the stationary contact. The second electrode of the gas discharge tube is connected to the positive terminal of the surge chip via a wire. The housing has an inlet conductive terminal and an outlet conductive terminal at both ends. The negative terminal of the surge chip is connected to the outlet conductive terminal via a wire. The inlet conductive terminal is connected to the moving contact via a wire.

[0005] The advantages of the above structure are as follows: by integrating the handle, operating mechanism, contact mechanism, and surge protection module into a single housing, the external wiring and installation space requirements are significantly reduced, making it suitable for power distribution scenarios with limited space. The handle links the operating mechanism to control the opening and closing of the contacts, enabling safe maintenance under energized conditions and avoiding the risk of electric arcing that may be caused by traditional plug-and-play operations. The gas discharge tube and surge chip are designed in series to form a protection system that covers a wider range of surge energy. The stationary contact is directly connected to the gas discharge tube through a conductive bracket, and the moving contact is connected to the incoming conductive terminal, reducing contact resistance, reducing temperature rise, and improving long-term stability.

[0006] This utility model is further configured with a thermistor and a coil assembly inside the housing. The thermistor and the coil assembly are connected in series between the gas discharge tube and the surge chip. The coil assembly is close to the gas discharge tube, and the thermistor is close to the surge chip. This series combination of the thermistor and the coil assembly provides additional impedance during a surge, helping to absorb and disperse surge energy and reducing the burden on the gas discharge tube.

[0007] This utility model is further configured with a test opening inside the housing, within which a test connector is placed. The test connector is connected to the positive terminal of the surge chip via a test lead, used to simulate surge pulses to verify protection performance. The test opening and test connector provide a direct and convenient access point for simulating surge pulses. Connecting the test connector to the positive terminal of the surge chip via a test lead ensures accurate transmission of the test signal and reduces signal attenuation or interference.

[0008] This utility model is further configured with a micro switch assembly on one side of the conductive terminal. The micro switch assembly includes a micro switch, a micro switch push rod, and a spring. One end of the micro switch push rod is linked to the conductive terminal, and the other side has the micro switch. The spring is sleeved around the micro switch push rod, with its two ends abutting against the shaft end of the housing and the bottom of the micro switch push rod, respectively. The housing has an arc-extinguishing cover on one side of the contact mechanism to extinguish the arc generated when the moving contact and the stationary contact are separated. Because one end of the micro switch push rod is linked to the conductive terminal, when the conductive terminal moves or its state changes, it can drive the micro switch push rod to move, thereby triggering the micro switch. The arc-extinguishing cover design can effectively extinguish the arc, reduce the burn damage to the contacts caused by the arc, and improve the safety of the equipment.

[0009] This utility model is further configured with a housing comprising an outer shell and an insulating cover plate disposed on the outer shell. The insulating cover plate effectively isolates the live parts inside the housing from the external environment, preventing personnel from directly contacting the live parts and thus greatly reducing the risk of electric shock. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0011] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of this utility model.

[0012] Figure 3 This is a schematic diagram of the internal structure of Embodiment 2 of this utility model. Detailed Implementation

[0013] like Figures 1-3As shown, Embodiment 1 of this utility model provides an integrated surge protector, including a housing 1. The housing 1 is provided with a handle 2, an operating mechanism 3 connected to the handle 2, a contact mechanism 4, and a surge protection mechanism 5. The contact mechanism 4 includes a moving contact 41 and a stationary contact 42. The moving contact 41 is linked to the operating mechanism 3 through a connecting rod 411. The surge protection mechanism 5 includes a gas discharge tube 51 and a surge chip 52. The stationary contact 42 is connected to the first electrode of the gas discharge tube 51 through a conductive bracket 421. The surge chip 52 is fixed to one end of the gas discharge tube 51 near the stationary contact 42. The second electrode of the gas discharge tube 51 is connected to the positive terminal 521 of the surge chip 52 through a wire. The two ends of the housing 1 are respectively provided with an inlet conductive terminal 6 and an outlet conductive terminal 7. The negative terminal 522 of the surge chip 52 is connected to the outlet conductive terminal 7 through a wire. The inlet conductive terminal 6 is connected to the moving contact 41 through a wire.

[0014] The housing 1 contains a thermistor 8 and a coil assembly 9. The thermistor 8 and the coil assembly 9 are connected in series between the gas discharge tube 51 and the surge chip 52. The coil assembly 9 is close to the gas discharge tube 51, and the thermistor 8 is close to the surge chip 52. The housing 1 also has a test opening, in which a test connector 13 is placed. The test connector 13 is connected to the positive terminal 521 of the surge chip 52 through a test wire to simulate surge pulses to verify the protection performance.

[0015] A micro switch assembly 10 is provided on one side of the conductive terminal 6. The micro switch assembly 10 includes a micro switch 101, a micro switch push rod 102 and a spring (not shown in the figure). One end of the micro switch push rod 102 is linked to the conductive terminal 6, and the other side is provided with the micro switch 101. The spring is sleeved around the micro switch push rod 102, and its two ends abut against the shaft end of the housing 1 and the bottom of the micro switch push rod 102, respectively. An arc extinguishing cover 14 is provided on one side of the contact mechanism 4 of the housing 1 to extinguish the arc generated when the moving contact 41 and the stationary contact 42 are separated.

[0016] The housing 1 consists of an outer shell 11 and an insulating cover 12. The insulating cover 12 covers the outer shell 11, effectively isolating the live parts inside the housing 1 from the external environment, preventing personnel from directly contacting the live parts, ensuring safe use, and the surge chip 52 can be a single chip or a dual chip to demonstrate the flexibility of the design under different applications or requirements.

[0017] The above is a specific embodiment of the present utility model. In addition, besides the solution of embodiment one, the present utility model also includes another specific embodiment, as follows:

[0018] A second specific embodiment of this utility model provides an integrated surge protector. The integrated surge protector is similar to the first embodiment in overall structure, but the main difference is that the surge chip 52 in its surge protection mechanism is replaced by a graphite gap chip 50. The graphite gap chip 50 is composed of a graphite sheet, a graphite pad, a surge pin header, a surge circuit board, and a circuit board resistor. These components work together to provide higher surge resistance and better heat dissipation performance.

[0019] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model, and the utility model creation is in line with the applicant's actual R&D capabilities and resource conditions.

Claims

1. An integrated surge protector, characterized by: The device includes a housing, within which are a handle, an operating mechanism connected to the handle, a contact mechanism, and a surge protection mechanism. The contact mechanism includes a moving contact and a stationary contact. The moving contact is linked to the operating mechanism via a connecting rod. The surge protection mechanism includes a gas discharge tube and a surge chip. The stationary contact is connected to the first electrode of the gas discharge tube via a conductive bracket. The surge chip is fixed to the end of the gas discharge tube near the stationary contact. The second electrode of the gas discharge tube is connected to the positive terminal of the surge chip via a wire. The two ends of the housing are respectively provided with an inlet conductive terminal and an outlet conductive terminal. The negative terminal of the surge chip is connected to the outlet conductive terminal via a wire. The inlet conductive terminal is connected to the moving contact via a wire.

2. The integrated surge protector of claim 1, wherein: The housing contains a thermistor and a coil assembly. The thermistor and the coil assembly are connected in series between the gas discharge tube and the surge chip. The coil assembly is close to the gas discharge tube, and the thermistor is close to the surge chip.

3. The integrated surge protector of claim 1 or 2, wherein: The housing also has a test opening, in which a test connector is placed. The test connector is connected to the positive terminal of the surge chip via a test wire to simulate surge pulses and verify the protection performance.

4. The integrated surge protector of claim 1 or 2, wherein: A micro switch assembly is provided on one side of the conductive terminal. The micro switch assembly includes a micro switch, a micro switch push rod, and a spring. One end of the micro switch push rod is linked to the conductive terminal, and the other side is provided with a micro switch. The spring is sleeved around the micro switch push rod, and its two ends abut against the shaft end of the housing and the bottom of the micro switch push rod, respectively. An arc extinguishing cover is provided on one side of the contact mechanism of the housing to extinguish the electric arc generated when the moving contact and the stationary contact are separated.

5. The integrated surge protector of claim 1, wherein: The housing includes an outer shell and an insulating cover plate placed on the outer shell.

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