Double mechanical tripping structure of surge protection device

Abstract

The invention provides a double mechanical tripping structure of a surge protection device, which comprises a three-pole voltage dependent resistor chip, a first tripping assembly and a second tripping assembly are respectively arranged on the front surface and the bottom surface of the three-pole voltage dependent resistor chip, the first tripping assembly and the second tripping assembly are respectively provided with a tripping indicating piece, and the tripping indicating pieces are arranged on the front surface and the bottom surface of the three-pole voltage dependent resistor chip. All the modules are associated with the remote signaling output component; the first tripping assembly and the second tripping assembly are arranged at the central position of the three-pole voltage dependent resistor chip, so that the central sampling problem of double chips is solved, the heat conduction efficiency is improved, and the corresponding action time of the tripping mechanism when the MOV fails is shortened; and meanwhile, one set of indication and remote signaling output mechanism is shared, so that the surge protection device of the type is consistent with a surge protection device formed by a single independent chip in appearance connection, and accurate tripping and indication can be realized when the through-flow is improved or the shunting purpose is designed.

Description

Technical Field

[0001] The invention relates to the field of design of a tripping mechanism of a surge protector, and in particular to a double mechanical tripping structure of a surge protector. Background Art

[0002] A voltage-limiting surge protector is usually composed of an independent single-chip varistor chip. In order to improve the current-carrying capacity of the surge protector, multiple independent varistor chips are usually connected in parallel. In order to improve the current-carrying capacity of the surge protector within a limited area, or because of the need for design shunt, the varistor chip is designed as a back-to-back three-pole structure. The tripping mechanism of the surge protector formed by it usually sets the tripping point at the edge of the varistor chip, not in the center of the chip, resulting in a delay in the thermal conduction of the chip.

[0003] Therefore, there is an urgent need for a dual mechanical tripping structure of a surge protector that can solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a dual mechanical tripping structure of a surge protector to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a dual mechanical tripping structure of a surge protector, comprising a three-pole varistor chip, wherein the front and bottom surfaces of the three-pole varistor chip are respectively provided with a first tripping component and a second tripping component, wherein the first tripping component and the second tripping component are both provided with a tripping indicator and are both associated with a remote signaling output component.

[0007] Preferably, the three-pole varistor chip comprises a first MOV body and a second MOV body, with an intermediate electrode sandwiched therebetween, a first tripping electrode being disposed on the outer side of the first MOV body, and a second tripping electrode being disposed on the outer side of the second MOV body.

[0008] Preferably, the first tripping assembly includes a first tripping push rod, the first tripping push rod is connected to a first tripping tension spring, one end of the first tripping push rod is provided with the tripping indicator, the other end of the first tripping push rod is provided with a first remote signaling output switch contact, a first connecting electrode is provided in the middle, and the first connecting electrode is connected to the first tripping electrode.

[0009] Preferably, the second tripping assembly includes a second tripping push rod, the second tripping push rod is connected to a second tripping tension spring, one end of the second tripping push rod is provided with the tripping indicator, the other end of the second tripping push rod is provided with a second remote signaling output switch contact, the middle of which is provided with a second connecting electrode, and the second connecting electrode is connected to the second tripping electrode.

[0010] Preferably, the first trip assembly and the second trip assembly share a set of trip indicators and remote signal output components, and the first remote signal output switch contact clamping component and the second remote signal output switch contact clamping component share a set of two-terminal output structure or three-terminal output structure.

[0011] Preferably, the first connecting electrode and the first tripping electrode, and the second connecting electrode and the second tripping electrode are both welded by low-temperature soldering.

[0012] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0013] The present invention provides a dual mechanical tripping structure of a surge protector, comprising a three-pole varistor chip, wherein a first tripping component and a second tripping component are respectively arranged on the front and bottom surfaces of the three-pole varistor chip, wherein the first tripping component and the second tripping component are both provided with tripping indicators and are both associated with a remote signaling output component; the first tripping component and the second tripping component are arranged at the central position of the three-pole varistor chip, so as to solve the central sampling problem of the dual chips, improve the heat conduction efficiency, and shorten the corresponding action time of the tripping mechanism when the MOV fails; and at the same time, a set of indication and remote signaling output mechanisms are shared, so that the appearance connection of this type of surge protector is consistent with that of a surge protector composed of a single independent chip, and accurate tripping and indication can be achieved when the through-current is increased or the diversion purpose is designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 A schematic diagram of a dual mechanical tripping structure of a surge protector provided by the present invention;

[0016] Figure 2 A schematic diagram of the structure of a first tripping component in a dual mechanical tripping structure of a surge protector provided by the present invention;

[0017] Figure 3 A schematic diagram of the structure of a second tripping component in a dual mechanical tripping structure of a surge protector provided by the present invention.

[0018] Figure 4 A schematic diagram of the structure of a common output component and a trip indicator in a dual mechanical trip structure of a surge protector provided by the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The purpose of the present invention is to provide a double mechanical tripping structure of a surge protector to solve the problems existing in the prior art.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Embodiment 1:

[0023] This embodiment provides a dual mechanical tripping structure of a surge protector, such as Figure 1-4 As shown, it includes a three-pole varistor chip 1, and the front and bottom surfaces of the three-pole varistor chip 1 are respectively provided with a first tripping component 2 and a second tripping component 3. The first tripping component 2 and the second tripping component 3 are both provided with a tripping indicator 4, and are both associated with the remote signal output component.

[0024] As an implementation mode, the three-pole varistor chip 1 includes a first MOV body 11 and a second MOV body 12 , with an intermediate electrode 13 sandwiched therebetween. A first tripping electrode 14 is disposed on the outer side of the first MOV body 11 , and a second tripping electrode 15 is disposed on the outer side of the second MOV body 12 .

[0025] As an embodiment, the first tripping assembly 2 includes a first tripping push rod 21, the first tripping push rod 21 is connected to a first tripping tension spring 22, one end of the first tripping push rod 21 is provided with a tripping indicator 4, and the other end thereof is provided with a first remote signaling output switch contact clamping member 24, a first connecting electrode 23 is provided in the middle thereof, and the first connecting electrode 23 is connected to the first tripping electrode 14.

[0026] As an embodiment, the second tripping assembly 3 includes a second tripping push rod 31, the second tripping push rod 31 is connected to a second tripping tension spring 32, one end of the second tripping push rod 31 is provided with a tripping indicator 4, and the other end thereof is provided with a second remote signaling output switch contact clamping piece 34, a second connection electrode 33 is provided in the middle thereof, and the second connection electrode 33 is connected to the second tripping electrode 15.

[0027] As an implementation mode, the first remote signal output switch contact pressing member 24 and the second remote signal output switch contact pressing member 34 share a set of two-terminal output structure or three-terminal output structure. When the MOV is working normally, the first remote signal output switch contact pressing member 24 and the second remote signal output switch contact pressing member 34 respectively press the common balance member 44, so that the common balance member 44 maintains balance under the action of the spring 45, and at the same time presses the two-terminal (or three-terminal) member 47; a rotating shaft 46 is provided in the center of the common balance member 44, and the rotating shaft 46 is arranged to be able to move up and down toward the center along the vertical line of the spring 45. When the first remote signal output switch contact pressing member 24 and the second remote signal output switch contact pressing member 34 are pressed, the common balance member 44 is provided with a rotating shaft 46, and the rotating shaft 46 is arranged to be able to move up and down toward the center along the vertical line of the spring 45.

[0028] When the MOV fails and cannot compress the common balance member 44, the common balance member 44 rotates, and under the action of the spring 45, the common balance member 44 moves upward, thereby changing the output state of the two-terminal (or three-terminal) member 47 to achieve normally closed and normally open selectable output.

[0029] The trip indicator 4 is used to indicate whether the surge protector is operating normally. When the first MOV body 11 and the second MOV body 12 are normal, the common balance member 44 maintains a balanced state, and the indicator as a whole can be fully observed through the window of the surge protector housing. When one of the first MOV body 11 and the second MOV body 12 fails, the common balance member 44 moves, and the trip mechanism indicator is partially or completely hidden by the housing. When the first MOV body 11 and the second MOV body 12 all fail, the movement displacement of the common balance member 44 increases, and the indicator as a whole is hidden by the housing.

[0030] As an implementation manner, the first connection electrode 23 and the first tripping electrode 14 , and the second connection electrode 33 and the second tripping electrode 15 are both welded by low temperature soldering.

[0031] The invention provides a double mechanical tripping structure of a surge protector, wherein a first tripping component and a second tripping component are arranged at the central position of a three-pole varistor chip, so as to solve the central sampling problem of the double chips, improve the heat conduction efficiency, and shorten the corresponding action time of the tripping mechanism when the MOV fails; at the same time, a set of indication and remote signaling output mechanisms are shared, so that the appearance connection of this type of surge protector is consistent with that of a surge protector composed of a single independent chip, and can accurately trip and indicate when increasing the through-current or designing the diversion purpose.

[0032] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A dual mechanical tripping structure of a surge protector, characterized in that: It comprises a three-pole varistor chip, the front and bottom surfaces of which are respectively provided with a first tripping component and a second tripping component, the first tripping component and the second tripping component are both provided with a tripping indicator, and are both associated with a remote signaling output component.

2. The dual mechanical tripping structure of the surge protector according to claim 1, characterized in that: The three-pole varistor chip includes a first MOV body and a second MOV body, with an intermediate electrode sandwiched between the two. A first tripping electrode is disposed on the outer side of the first MOV body, and a second tripping electrode is disposed on the outer side of the second MOV body.

3. The dual mechanical tripping structure of the surge protector according to claim 2, characterized in that: The first tripping assembly includes a first tripping push rod, which is connected to a first tripping tension spring. One end of the first tripping push rod is provided with the tripping indicator, and the other end is provided with a first remote signaling output switch contact, wherein a first connecting electrode is provided in the middle, and the first connecting electrode is connected to the first tripping electrode.

4. The dual mechanical tripping structure of the surge protector according to claim 3, characterized in that: The second tripping assembly includes a second tripping push rod, which is connected to a second tripping tension spring. One end of the second tripping push rod is provided with the tripping indicator, and the other end is provided with a second remote signaling output switch contact, wherein a second connecting electrode is provided in the middle, and the second connecting electrode is connected to the second tripping electrode.

5. The dual mechanical tripping structure of the surge protector according to claim 4, characterized in that: The first trip assembly and the second trip assembly share a set of trip indicators and remote signal output components, and the first remote signal output switch contact clamping component and the second remote signal output switch contact clamping component share a set of two-terminal output structure or three-terminal output structure.

6. The dual mechanical tripping structure of the surge protector according to claim 4, characterized in that: The first connecting electrode and the first tripping electrode, and the second connecting electrode and the second tripping electrode are both welded by low-temperature soldering.

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