Double mechanical tripping structure of surge protection device
By setting a central tripping component and a shared remote signaling output mechanism on the three-stage varistor chip of the surge protector, the problem of heat conduction delay caused by the tripping point location is solved, and faster response and accurate tripping indication are achieved.
Patent Information
- Application Number
- CN202423318831.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing surge protectors typically place the tripping point at the edge of the varistor chip, which causes a delay in heat conduction, affecting current carrying capacity and the design shunting effect.
It adopts a three-level varistor chip, with first and second tripping components on the front and bottom surfaces respectively. Both are equipped with tripping indicators and are connected to the remote signaling output component. The tripping components are located in the center of the chip and share a set of indicators and remote signaling output mechanisms.
It improves heat conduction efficiency, shortens the action response time of the tripping mechanism, and ensures that the surge protector can accurately trip and indicate when current is flowing or when the design shunts current.
Smart Images
Figure CN223884383U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of surge protection device tripping mechanism design, especially to a double mechanical tripping structure of surge protection device. BACKGROUND
[0002] The voltage-limited surge protection device is usually composed of independent single chip, in order to improve the current-carrying capacity of the surge protection device, multiple independent chip is usually used, in order to improve the current-carrying capacity of the surge protection device in limited area, or because of the design of shunt, the chip is designed as a three-pole structure, and the tripping mechanism of the surge protection device formed by the chip is usually arranged at the edge of the chip, not at the central position of the chip, so that the heat conduction of the chip is delayed.
[0003] Therefore, there is an urgent need for a double mechanical tripping structure of surge protection device to solve the above problems. UTILITY MODEL CONTENT
[0004] The utility model discloses a double mechanical tripping structure of surge protection device to solve the problems existing in the prior art.
[0005] To achieve the above object, the utility model provides the following scheme:
[0006] The utility model provides a double mechanical tripping structure of surge protection device, including three -level pressure -sensitive resistance chip, the positive and bottom of three -level pressure -sensitive resistance chip are equipped with first tripping subassembly and second tripping subassembly respectively, first tripping subassembly with second tripping subassembly all are equipped with tripping indicating piece, and all are connected with remote signaling output subassembly.
[0007] Preferably, the three-level pressure-sensitive resistance chip includes a first MOV body and a second MOV body, and an intermediate electrode is clamped between the first MOV body and the second MOV body. The outer side of the first MOV body is provided with a first tripping electrode, and the outer side of the second MOV body is provided with a second tripping electrode.
[0008] Preferably, the first tripping subassembly includes a first tripping push rod, the first tripping push rod is connected with a first tripping tension spring, one end of the first tripping push rod is provided with the tripping indicating piece, the other end is provided with a first remote signaling output switch contact pressing piece, and a first connecting electrode is arranged in the middle part. The first connecting electrode is connected with the first tripping electrode.
[0009] Preferably, the second tripping subassembly includes a second tripping push rod, the second tripping push rod is connected with a second tripping tension spring, one end of the second tripping push rod is provided with the tripping indicating piece, the other end is provided with a second remote signaling output switch contact pressing piece, and a second connecting electrode is arranged in the middle part. The second connecting electrode is connected with the second tripping electrode.
[0010] Preferably, the first remote signaling output switch contact pressing member and the second remote signaling output switch contact pressing member share a two-terminal output structure or a three-terminal output structure.
[0011] Preferably, the first connecting electrode and the first tripping electrode are connected by low-temperature tin soldering, and the second connecting electrode and the second tripping electrode are connected by low-temperature tin soldering.
[0012] The utility model discloses relative to prior art has obtained following beneficial technical effect:
[0013] The utility model provides a kind of double mechanical tripping structure of surge protector, including three-stage varistor chip, the front and bottom of three-stage varistor chip are equipped with first tripping component and second tripping component respectively, the first tripping component and the second tripping component are equipped with tripping indicating member, and are connected with remote signaling output component;First tripping component and second tripping component are arranged in three-pole varistor chip central position, solve the central sampling problem of double chip, improve heat conduction efficiency, shorten the tripping mechanism action response time when MOV fails;While sharing a set of indicating member and remote signaling output mechanism, make the appearance connection of this type of surge protector consistent with the surge protector of single piece independent chip, when improving through-flow or design shunt purpose, can accurately trip and indicate. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiments will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0015] Figure 1 It is a double mechanical tripping structure schematic view of the utility model provides a kind of surge protector;
[0016] Figure 2 It is a first tripping component structure schematic view in the double mechanical tripping structure of the utility model provides a kind of surge protector;
[0017] Figure 3 It is a second tripping component structure schematic view in the double mechanical tripping structure of the utility model provides a kind of surge protector;
[0018] Figure 4 It is a two-terminal output structure schematic view that the double mechanical tripping structure of the utility model provides a kind of surge protector is applied to. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present application.
[0020] The utility model discloses a double mechanical tripping structure of surge protector, to solve the prior art problems.
[0021] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, below, combining with the specific embodiment and the drawings of the utility model, the utility model will be further detailed.
[0022] Embodiment 1:
[0023] The embodiment provides a double mechanical tripping structure of surge protector, as shown in the drawing, including three-stage voltage-dependent resistor chip 1, and the positive side and the bottom of three-stage voltage-dependent resistor chip 1 are respectively equipped with first tripping assembly 2 and second tripping assembly 3, and first tripping assembly 2 and second tripping assembly 3 are all equipped with tripping indicating part 4 and are all connected with remote signaling output assembly. Figures 1-4
[0024] As an implementation mode, three-stage voltage-dependent resistor chip 1 includes first MOV body 11 and second MOV body 12, and the intermediate electrode 13 is clamped between the first MOV body 11 and the second MOV body 12, and the outer side of the first MOV body 11 is equipped with the first tripping electrode 14, and the outer side of the second MOV body 12 is equipped with the second tripping electrode 15.
[0025] As an implementation mode, first tripping assembly 2 includes first tripping push rod 21, and first tripping push rod 21 is connected with first tripping tension spring 22, one end of first tripping push rod 21 is equipped with tripping indicating part 4, the other end of first tripping push rod 21 is equipped with first remote signaling output switch contact pressing part 24, and the middle part of first tripping push rod 21 is equipped with first connecting electrode 24, and first connecting electrode 23 is connected with first tripping electrode 14.
[0026] As an implementation mode, second tripping assembly 3 includes second tripping push rod 31, and second tripping push rod 31 is connected with second tripping tension spring 32, one end of second tripping push rod 31 is equipped with tripping indicating part 4, the other end of second tripping push rod 31 is equipped with second remote signaling output switch contact pressing part 34, and the middle part of second tripping push rod 31 is equipped with second connecting electrode 33, and second connecting electrode 33 is connected with second tripping electrode 15.
[0027] As an implementation, the first remote signaling output switch contact pressing member 24 and the second remote signaling output switch contact pressing member 34 share a two-terminal output structure or a three-terminal output structure, and the first remote signaling output switch contact pressing member 24 and the second remote signaling output switch contact pressing member 34 press the shared balance member 44 respectively when the MOV is in normal operation, so that the shared balance member 44 is kept in balance under the action of the spring 45 and the two-terminal (or three-terminal) member 47 is pressed tightly; the shared balance member 44 is provided with a rotating shaft 46 in the center, and the rotating shaft 46 is arranged to be movable up and down along the vertical line of the spring 45, and when the first remote signaling output switch contact pressing member 24 and the second remote signaling output switch contact pressing member 34
[0028] When the shared balance member 44 cannot be pressed due to MOV failure, the shared balance member 44 rotates and moves upward under the action of the spring 45, so as to change the output state of the two-terminal (or three-terminal) member 47 and realize optional closed or open output.
[0029] The tripping indication member 4 is used for indicating whether the surge protector is in normal operation, and when the first MOV body 11 and the second MOV body 12 are normal, the shared balance member 44 is kept in balance, and the whole indication member can be observed through the window of the surge protector shell; when one of the first MOV body 11 and the second MOV body 12 fails, the shared balance member 44 moves, and the tripping mechanism can only observe part of the indication member; when the first MOV body 11 and the second MOV body 12 both fail, the displacement of the shared balance member 44 increases, and the whole indication member is hidden by the shell.
[0030] As an implementation, the first connecting electrode 23 and the first tripping electrode 14 are welded through low-temperature tin soldering, and the second connecting electrode 33 and the second tripping electrode 15 are welded through low-temperature tin soldering.
[0031] The utility model provides a double mechanical tripping structure of surge protector, first tripping assembly and second tripping assembly set in three pole pressure sensitive resistance chip central position, solve the central sampling problem of double chip, improve the heat conduction efficiency, shorten the corresponding time of tripping mechanism action when MOV failure, share a set of indication and remote signaling output mechanism simultaneously, make this type of surge protector consistent with the surge protector formed by single piece independent chip in appearance connection, when improving the through flow or design shunt purpose, can accurate tripping and indication.
[0032] The utility model has applied specific example to the principle and implementation mode of the utility model have been set forth, the above embodiment is only for helping understanding the method and its core idea of the utility model, simultaneously, for the general technical personnel of this field, according to the thought of the utility model, in specific implementation and application range will have the change of place. On the whole, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A dual mechanical tripping structure of a surge protector, characterized by: The three-stage pressure sensitive resistor chip is provided with a first tripping assembly and a second tripping assembly on the front surface and the bottom surface respectively, and the first tripping assembly and the second tripping assembly are provided with a tripping indicating piece and connected with a remote signaling output assembly.
2. The dual mechanical tripping structure of a surge protector according to claim 1, wherein: The three-stage pressure sensitive resistor chip comprises a first MOV body and a second MOV body, and an intermediate electrode is arranged between the first MOV body and the second MOV body, and the outer side of the first MOV body is provided with a first tripping electrode, and the outer side of the second MOV body is provided with a second tripping electrode.
3. The dual mechanical tripping structure of a surge protector according to claim 2, wherein: The first tripping assembly comprises a first tripping push rod, the first tripping push rod is connected with a first tripping tension spring, one end of the first tripping push rod is provided with the tripping indicating piece, the other end of the first tripping push rod is provided with a first remote signaling output switch contact pressing piece, and a first connecting electrode is arranged in the middle of the first tripping push rod, and the first connecting electrode is connected with the first tripping electrode.
4. The dual mechanical tripping structure of a surge protector according to claim 3, wherein: The second tripping assembly comprises a second tripping push rod, the second tripping push rod is connected with a second tripping tension spring, one end of the second tripping push rod is provided with the tripping indicating piece, the other end of the second tripping push rod is provided with a second remote signaling output switch contact pressing piece, and a second connecting electrode is arranged in the middle of the second tripping push rod, and the second connecting electrode is connected with the second tripping electrode.
5. The dual mechanical tripping structure of a surge protector according to claim 4, wherein: The first remote signaling output switch contact pressing piece and the second remote signaling output switch contact pressing piece share a two-terminal output structure or a three-terminal output structure.
6. The dual mechanical tripping structure of a surge protector according to claim 4, wherein: The first connecting electrode and the first tripping electrode, and the second connecting electrode and the second tripping electrode are welded through low-temperature tin soldering.