CN214590593U - Degradation tripping indicating structure and surge protection device - Google Patents

Abstract

The utility model discloses a degradation dropout instruction structure and surge protector, this degradation dropout instruction structure is through the flexible characteristic who utilizes flexible indicator piece, the operating condition of surge protector body is associated with the action that the heat is taken off the structure, moreover, the steam generator is simple in structure, the process requirement is reduced, easily structure and production, the attached surface setting at the surge protector body of flexible indicator piece, hardly take up space, and flexible indicator piece simple structure, the manufacturing of being convenient for, through this degradation dropout instruction structure, can realize surge protector's volume miniaturization and low-cost production, satisfy the user requirement in a plurality of restricted spaces.

Description

Degradation tripping indicating structure and surge protection device

Technical Field

The utility model relates to a surge protector technical field especially relates to a degradation dropout instruction structure and surge protector.

Background

The miniaturization of volume and the low-cost manufacture are one of the development trends of surge protection devices, and especially for the power supply application scene of the communication industry, the development trend of high integration of electric components is shown, and the surge protection device is one of the components in which the integration is required. In order to meet the surge protection requirement of equivalent performance, changing a single large-size voltage limiting element into a plurality of small-size voltage limiting elements has become one of the measures for engineers to design miniaturized products, so the degradation of the voltage limiting elements, such as piezoresistors, and the tripping display structure thereof must be adjusted accordingly.

At present, a plurality of technologies or products still use the prior structural form, only parts are miniaturized, and not only is higher difficulty brought to assembly, but also the advantage of low cost is not reflected fundamentally.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a degradation dropout instruction structure and surge protector for solve current surge protector and still use the structural style before, only miniaturized the part, not only bring the higher degree of difficulty to the assembly, fundamentally does not embody the problem of low-cost advantage moreover yet.

To this end, according to a first aspect, an embodiment provides a degradation trip indicating structure comprising:

the surge protector comprises a surge protector body, wherein a voltage limiting element is arranged in the surge protector body, and the leading-out end of the voltage limiting element extends out of the outer side of the surge protector body;

the flexible indicating sheet is attached to the outer surface of the surge protector body and can move along the outer surface, and at least a first position for indicating the normal operation of the surge protector body and a second position for indicating the fault of the surge protector body are arranged on the moving path of the flexible indicating sheet; and

and the thermal release structure is used for driving the flexible indication sheet to move and has a first state electrically connected with the leading-out terminal and a second state disconnected with the leading-out terminal, and when the thermal release structure is switched from the first state to the second state, the thermal release structure drives the flexible indication sheet to move from the first position to the second position.

In some embodiments of the degradation trip indicating structure, an outer surface of the surge protector body has an optical display surface and a remote signaling linkage hole, the optical display surface is exposed when the flexible indicating sheet is in the first position, the remote signaling linkage hole is shielded by the flexible indicating sheet, the remote signaling linkage hole is exposed when the flexible indicating sheet is in the second position, and the optical display surface is shielded by the flexible indicating sheet.

In some embodiments of the degradation trip indicating structure, the outer surface of the surge protector body has a first side surface and a second side surface which are opposite to each other, and a third side surface connected between the first side surface and the second side surface, the optical display surface and the remote signaling linkage hole are respectively disposed on the first side surface and the second side surface, the middle portion of the flexible indicating sheet is attached to the third side surface, two ends of the flexible indicating sheet are respectively attached to the first side surface and the second side surface, and the leading-out end and the thermal trip structure are disposed on the third side surface.

In some embodiments of the degradation trip indicating structure, the thermal trip structure includes conductive sheets, an elastic member and a sliding block, the same end of the two conductive sheets is fixed at the leading-out end through a thermal fusing conductive material, the sliding block is arranged between the two conductive sheets through the elastic member, when the thermal fusing conductive material does not reach a fusing temperature, the elastic member is in an energy storage state, and the thermal trip structure is in the first state; when the thermal fusing conductive material is fused after reaching fusing temperature, the elastic piece drives the sliding block to move, the conducting strip is disconnected with the leading-out end, and at the moment, the thermal disconnecting structure is in the second state.

In some embodiments of the degradation trip indicating structure, the same ends of the two conducting strips are bent in opposite directions to form a splayed tapered portion, the two conducting strips at the end of the splayed tapered portion are respectively located at two sides of the leading-out end and are fixed on the leading-out end through the thermal-fusing conducting material, and one end of the slider, which is far away from the elastic piece, abuts against the splayed tapered portion.

In some embodiments of the deterioration trip indicating structure, a protrusion is disposed at a bottom of the slider, a jack corresponding to the protrusion is disposed on the flexible indicating sheet, and the protrusion is embedded in the jack, so that the flexible indicating sheet and the slider form linkage.

In some embodiments of the degradation trip indicating structure, the telecommand linkage hole is blocked by an end of the flexible indicator piece located at the second side surface when the flexible indicator piece is not driven by the slider; when the flexible indicator piece is driven by the sliding block, one end, located on the second side face, of the flexible indicator piece is moved away from the remote signaling linkage hole, and one end, located on the first side face, of the flexible indicator piece shields the optical display face.

In some embodiments of the deterioration trip indicating structure, the first side surface is provided with a guide portion, the flexible indicating sheet is provided with an oblong hole corresponding to the leading-out end, and the oblong hole and the guide portion are both arranged along a moving direction of the flexible indicating sheet.

According to a second aspect, an embodiment provides a surge protector comprising a degradation trip indicating structure according to the first aspect of the invention.

In some embodiments of the surge protection device, the surge protection device further comprises a housing, the degradation trip indicating structure is housed in the housing, and the housing is provided with an indicating window corresponding to the optical display surface.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

this structure is instructed in degradation dropout is through utilizing the flexible characteristic of flexible indicator card, the operating condition of surge protector body is associated with the action that the structure was taken off to heat, moreover, the steam generator is simple in structure, the technological requirement has been reduced, easily structure and production, the attached surface setting at the surge protector body of flexible indicator card, hardly take up space, and flexible indicator card simple structure, the manufacturing of being convenient for, through this structure is instructed in degradation dropout, can realize surge protector's small in size and low-cost production, satisfy the user requirement in a plurality of restricted spaces.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

fig. 1 is a schematic diagram of a degradation trip indicating structure in a normal operating state according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a degradation trip indicating structure in a degraded state according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating the linkage between the flexible indicating sheet and the slider according to an embodiment of the present invention;

fig. 4 is a schematic view of an overall structure of a surge protector according to an embodiment of the present invention.

Description of the main element symbols:

100-a surge protector body; 101-a first side; 1011-a guide; 102-a second side; 103-a third side; 110-leading-out terminal; 120-an optical display surface; 130-remote signaling linkage hole;

200-a flexible indicator sheet; 201-long circular hole; 202-lumbar circular hole; 203-a jack;

300-thermal detachment structure; 301-a conductive sheet; 302-a slider; 3021-bump; 303-an elastic member;

400-lead-in pins;

500-lead out pins;

600-a housing; 601-indication window.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

An embodiment of the present invention provides a surge protection device, as shown in fig. 4, which is an electronic device for providing safety protection for various electronic devices, instruments and meters, and communication lines. When the peak current or voltage is suddenly generated in an electric loop or a communication line due to external interference, the surge protector can conduct and shunt in a very short time, so that the damage of the surge to other equipment in the loop is avoided.

The miniaturization of volume and low-cost manufacturing are one of the development trends of surge protection devices, but the existing surge protection devices still use the former structural form, only miniaturize the parts, not only bring higher difficulty to the assembly, but also do not reflect low cost fundamentally.

To this end, the embodiment of the utility model provides a surge protector disposes degradation dropout and instructs the structure, this degradation dropout instructs the structure through the flexible characteristic who utilizes flexible indicator plate 200, the operating condition of surge protector body 100 is associated with the action that the heat is taken off structure 300, moreover, the steam generator is simple in structure, the technological requirement has been reduced, easily structure and production, flexible indicator plate 200 is attached in the surface setting of surge protector body 100, hardly take up space, and flexible indicator plate 200 simple structure, the manufacturing of being convenient for, through this degradation dropout instruction structure, can realize surge protector's volume miniaturization and low cost production, satisfy the user requirement in a plurality of restricted spaces.

In the embodiment of the present invention, please refer to fig. 1-2, the degradation trip indicating structure includes a surge protector body 100, a thermal trip structure 300, and a flexible indicating sheet 200.

The surge protector body 100 is provided therein with a voltage limiting element (not shown), and a leading end 110 of the voltage limiting element extends outside the surge protector body 100.

Specifically, the voltage limiting element may be a varistor, a discharge tube, or the like.

The flexible indicator piece 200 is attached to and movable along the outer surface of the surge protector body 100 and has at least a first position indicating that the surge protector body 100 is operating properly and a second position indicating that the surge protector body 100 is malfunctioning in its path of movement.

The thermal release structure 300 is used for driving the flexible indication sheet 200 to move and has a first state electrically connected with the terminal 110 and a second state disconnected with the terminal, when the thermal release structure 300 is switched from the first state to the second state, the thermal release structure 300 drives the flexible indication sheet 200 to move from the first position to the second position.

The embodiment of the utility model provides an in, through the flexible characteristic who utilizes flexible indicator piece 200, the operating condition of surge protector body 100 is associated with the action that the heat is taken off structure 300, moreover, the steam generator is simple in structure, the technological requirement has been reduced, easily structure and production, flexible indicator piece 200 is attached in the surface setting of surge protector body 100, hardly take up space, and flexible indicator piece 200 simple structure, be convenient for manufacture, through this degradation dropout instruction structure, can realize surge protector's volume miniaturization and low-cost production, satisfy the user requirement in a plurality of restricted spaces.

In one embodiment, as shown in fig. 1-2, the surge protector body 100 has an optical display surface 120 and a remote signaling linkage hole 130 on an outer surface thereof, the optical display surface 120 is exposed when the flexible indicator sheet 200 is in the first position, the remote signaling linkage hole 130 is shielded by the flexible indicator sheet 200, the remote signaling linkage hole 130 is exposed when the flexible indicator sheet 200 is in the second position, and the optical display surface 120 is shielded by the flexible indicator sheet 200.

Specifically, the optical display surface 120 is located on the surge protector body 100 and displays green, and the flexible indicator sheet 200 is red or black for better distinguishing from the optical display surface 120.

Set up optics display surface 120 and remote signalling linkage hole 130 through the surface at surge protector body 100, shelter from by flexible indicator piece 200 through optics display surface 120 or remote signalling linkage hole 130 and remind the user, make the user obtain surge protector body 100's operating condition, moreover, the steam generator is simple in structure, optics display surface 120 and remote signalling linkage hole 130 form the surface at surge protector body 100, can additionally not occupy space, make whole degradation dropout instruct the structure small, and then realize surge protector's small in size and low-cost production.

In a specific embodiment, as shown in fig. 1-2, the outer surface of the surge protector body 100 has a first side 101 and a second side 102 opposite to each other, and a third side 103 connected between the first side 101 and the second side 102, the optical display surface 120 and the remote signaling linkage hole 130 are respectively disposed on the first side 101 and the second side 102, the middle portion of the flexible indicator sheet 200 is attached to the third side 103, both ends of the flexible indicator sheet 200 are respectively attached to the first side 101 and the second side 102, and the leading-out terminal 110 and the thermal release structure 300 are disposed on the third side 103.

Specifically, the flexible indicator piece 200 is in a long strip shape, can be constructed by adopting a PET material, does not need to be processed by an injection mold, and reduces the one-time input cost.

Further, as shown in fig. 1-2, in order to enable the flexible indicator sheet 200 to smoothly move on the first side 101, the second side 102 and the third side 103, circular arc transitions are provided between the third side 103 and the first side 101, and between the third side 103 and the second side 102.

By carrying out the above setting on the optical display surface 120, the remote signaling linkage hole 130, the flexible indication sheet 200 and the thermal release structure 300, the arrangement is reasonable, the space is saved, and the optical display surface 120, the remote signaling linkage hole 130 and the action of the thermal release structure 300 can be better associated through the flexible indication sheet 200.

In a specific embodiment, as shown in fig. 1-2, the thermal separating structure 300 includes conductive sheets 301, an elastic member 303 and a sliding block 302, the same end of the two conductive sheets 301 is fixed to the leading-out end 110 by thermally fusing the conductive material, the sliding block 302 is disposed between the two conductive sheets 301 by the elastic member 303, when the thermally fusing conductive material does not reach the fusing temperature, the elastic member 303 is in the energy storage state, and at this time, the thermal separating structure 300 is in the first state; when the thermal fuse conductive material reaches the fusing temperature and fuses, the elastic member 303 drives the slider 302 to move, so as to disconnect the conductive sheet 301 from the terminal 110, and at this time, the thermal disconnecting structure 300 is in the second state.

Specifically, the thermal fuse conductive material may be low-temperature solder, and the elastic member 303 may be a spring, where the elastic member 303 is in an energy storage state, that is, the spring is in a compression state. In use, when the thermal release structure 300 is in the first state, the surge protector operates normally; when the thermal release structure 300 is in the second state, it indicates a failure of the surge protector.

In a more specific embodiment, as shown in fig. 1-2, the same ends of the two conductive sheets 301 are bent towards each other to form a splayed tapered portion, the two conductive sheets 301 at the end of the splayed tapered portion are respectively located at two sides of the leading-out terminal 110 and fixed on the leading-out terminal 110 through thermally fusing conductive materials, and one end of the slider 302 away from the elastic member 303 abuts against the splayed tapered portion.

Specifically, when the system voltage at two ends of the surge protector is abnormally increased, under the action of high surge energy, or after an internal voltage limiting element is degraded, high heat is generated, and high temperature is formed at the position of the thermal-fusing conductive material, if a preset value is reached, the thermal-fusing conductive material on the leading-out end 110 is melted, the sliding block 302 is popped up towards the direction of the splayed tapered part under the action of the elastic piece 303, and the conducting strip 301 at the splayed tapered part is forced to expand and deform outwards, so that the conducting strip 301 is separated from the leading-out end 110.

The embodiment of the utility model provides an in, through with two conducting strips 301 with same one end in opposite directions bending type splayed convergent portion for after hot melt conducting material is heated and is melted, conducting strip 301 and leading out between the end 110 break off thoroughly, avoid the dropout incompletely to lead to the circuit disconnection thoroughly.

In a more specific embodiment, as shown in fig. 1-3, a protrusion 3021 is disposed at the bottom of the slider 302, a receptacle 203 corresponding to the protrusion 3021 is disposed on the flexible indicator sheet 200, and the protrusion 3021 is inserted into the receptacle 203, so that the flexible indicator sheet 200 and the slider 302 form a linkage.

It should be noted that, the linkage structure between the flexible indication sheet 200 and the sliding block 302 is not limited to the above one, in some other embodiments, a groove may be disposed at the bottom of the sliding block 302, and a protrusion inserted into the groove is disposed on the flexible indication sheet 200, of course, the sliding block 302 and the flexible indication sheet 200 may be directly attached and connected by an adhesive, as long as the sliding block 302 can move to drive the flexible indication sheet 200 to move.

In a further more specific embodiment, as shown in fig. 1-2, when flexible indicator sheet 200 is not driven by slider 302, remote signaling linkage hole 130 is obscured by the end of flexible indicator sheet 200 located on second side 102; when the flexible indicator piece 200 is driven by the slider 302, the end of the flexible indicator piece 200 located on the second side surface 102 moves away from the telecommand linkage hole 130, and the end of the flexible indicator piece 200 located on the first side surface 101 shields the optical display surface 120.

When the surge protector is in a normal working state, the elastic member 303 (such as a spring) is in an energy storage state, the remote signaling linkage hole 130 is shielded by one end of the flexible indication sheet 200, which is located on the second side surface 102, and the optical display surface 120 is not shielded by one end of the flexible indication sheet 200, which is located on the first side surface 101, at this time, the optical display surface 120 can be observed to indicate that the surge protector works normally; when system voltage at two ends of the surge protector is abnormally increased, under the action of high surge energy or after an internal voltage limiting element is degraded, high heat is generated to heat a thermally fused conductive material (such as low-temperature soldering tin) on an outgoing end 110, so that the low-temperature soldering tin is melted, after the low-temperature soldering tin is melted, the conductive sheet 301 at the splayed tapered part is not restrained by the low-temperature soldering tin, the spring releases energy, a sliding block 302 moves towards the splayed tapered part under the action of the spring to drive a flexible indicating sheet 200 to move, so that one end, located on a second side surface 102, of the flexible indicating sheet 200 is moved away from a remote communication linkage hole 130, an optical display surface 120 is covered by one end, located on a first side surface 101, of the flexible indicating sheet 200 at the moment, the remote communication linkage hole 130 is in an open state, an alarm device arranged on a base can give an alarm to inform a user that a tripping condition occurs, and the optical display surface 120 on the surge protector body 100 is shielded by the flexible indicating sheet 200, indicating that the surge protector has failed.

In some embodiments, as shown in fig. 1 to 3, the first side surface 101 is provided with a guide portion 1011, the flexible indicator sheet 200 is provided with an elongated hole 201 corresponding to the leading end 110, and the elongated hole 201 is arranged along the moving direction of the flexible indicator sheet 200.

Specifically, the guiding portion 1011 may be a guiding column fixed on the first side 101, and one end of the guiding column away from the first side 101 is provided with a drop-proof head, and correspondingly, the flexible indication sheet 200 is provided with a oval hole 202 corresponding to the guiding portion 1011, wherein the width of the oval hole 202 is greater than the diameter of the guiding column and smaller than the diameter of the drop-proof head, and the oval hole 202 is also arranged along the moving direction of the flexible indication sheet 200, of course, in other embodiments, the guiding portion 1011 may also be a guiding groove formed on the first side 101, the guiding groove is arranged along the moving direction of the flexible indication sheet 200, and the flexible indication sheet 200 is slidably arranged in the guiding groove.

By arranging the oblong hole 201 and the guide part 1011, the oblong hole 201 is in sliding fit with the leading end 110, and the guide part 1011 is in sliding fit with the part of the flexible indicator sheet 200 located on the first side surface 101, so that the flexible indicator sheet 200 can be guided when moving.

In some embodiments, as shown in fig. 1-2 and 4, the degradation trip indicating structure further includes a lead-in pin 400 and a lead-out pin 500, the lead-in pin 400 is formed on the second side surface 102 and electrically connected to the voltage limiting element, and the lead-out pin 500 is formed on an end of the conductive sheet 301 far away from the lead-out terminal 110.

The insertion pins 400 and the extraction pins 500 are provided to facilitate the connection of the surge protector body 100 with the base in a plugging manner.

During the production and manufacture of the surge protector, the housing 600 may be integrally injection molded by bakelite and plastic, the housing 600 is provided with an indication window 601 and a mounting opening, after the degradation trip indication structure is assembled, the degradation trip indication structure is inserted into the housing 600 through the mounting opening, and after the degradation trip indication structure is assembled with the housing 600, as shown in fig. 4, the optical display surface 120 corresponds to the indication window 601, and the leading-in pin 400 and the leading-out pin 500 extend out of the housing 600 through the mounting opening. In use, the optical display surface 120 can be observed through the indication window 601 on the housing 600, when the surge protector works normally, the optical display surface 120 is observed through the indication window 601, and after the surge protector fails, the flexible indication sheet 200 covered on the optical display surface 120 is observed through the indication window 601.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples are merely illustrative of several embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. Deterioration dropout structure, its characterized in that includes:

the surge protector comprises a surge protector body, wherein a voltage limiting element is arranged in the surge protector body, and the leading-out end of the voltage limiting element extends out of the outer side of the surge protector body;

the flexible indicating sheet is attached to the outer surface of the surge protector body and can move along the outer surface, and at least a first position for indicating the normal operation of the surge protector body and a second position for indicating the fault of the surge protector body are arranged on the moving path of the flexible indicating sheet; and

and the thermal release structure is used for driving the flexible indication sheet to move and has a first state electrically connected with the leading-out terminal and a second state disconnected with the leading-out terminal, and when the thermal release structure is switched from the first state to the second state, the thermal release structure drives the flexible indication sheet to move from the first position to the second position.

2. The degradation trip indicating structure of claim 1, wherein the surge protector body has an optical display surface and a remote signaling linkage hole on an outer surface thereof, the optical display surface is exposed when the flexible indicating sheet is in the first position, the remote signaling linkage hole is shielded by the flexible indicating sheet, the remote signaling linkage hole is exposed when the flexible indicating sheet is in the second position, and the optical display surface is shielded by the flexible indicating sheet.

3. The degradation trip indicating structure of claim 2, wherein the outer surface of the surge protector body has a first side surface and a second side surface that are opposite to each other, and a third side surface that is connected between the first side surface and the second side surface, the optical display surface and the remote signaling linkage hole are respectively disposed on the first side surface and the second side surface, the middle portion of the flexible indicator sheet is attached to the third side surface, both ends of the flexible indicator sheet are respectively attached to the first side surface and the second side surface, and the leading-out end and the thermal trip structure are disposed on the third side surface.

4. The degradation trip indicating structure of claim 3, wherein the thermal release structure comprises conductive strips, an elastic member, and a sliding block, the same end of the two conductive strips is fixed to the leading end by thermally fusing the conductive material, the sliding block is disposed between the two conductive strips by the elastic member, the elastic member is in an energy storage state when the thermally fusing conductive material does not reach a fusing temperature, and the thermal release structure is in the first state; when the thermal fusing conductive material is fused after reaching fusing temperature, the elastic piece drives the sliding block to move, the conducting strip is disconnected with the leading-out end, and at the moment, the thermal disconnecting structure is in the second state.

5. The degradation trip indicating structure of claim 4, wherein the same ends of the two conducting strips are bent toward each other to form a splayed tapered portion, the two conducting strips at the end of the splayed tapered portion are respectively located at two sides of the leading-out end and are fixed on the leading-out end through the thermal fusing conducting material, and one end of the slider away from the elastic element abuts against the splayed tapered portion.

6. The degradation trip indicating structure of claim 4, wherein a protrusion is disposed at a bottom of the slider, a socket corresponding to the protrusion is disposed on the flexible indicating sheet, and the protrusion is inserted into the socket to form a linkage between the flexible indicating sheet and the slider.

7. The degradation trip indicating structure of claim 6, wherein the telecommand linkage hole is blocked by an end of the flexible indicator tab on the second side when the flexible indicator tab is not driven by the slider; when the flexible indicator piece is driven by the sliding block, one end, located on the second side face, of the flexible indicator piece is moved away from the remote signaling linkage hole, and one end, located on the first side face, of the flexible indicator piece shields the optical display face.

8. The degradation trip indicating structure of claim 7, wherein the first side surface is provided with a guide portion, the flexible indicating sheet is provided with an elongated hole corresponding to the leading end, and the elongated hole and the guide portion are both arranged along a moving direction of the flexible indicating sheet.

9. A surge protector, characterized by comprising a degradation trip indicating structure according to any of claims 2-8.

10. A surge protector as claimed in claim 9, further comprising a housing in which the degradation trip indicating structure is housed, the housing being provided with an indicating window corresponding to the optical display surface.

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