CN108878086B - Improved surge protector for AC/DC - Google Patents
Improved surge protector for AC/DC Download PDFInfo
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- CN108878086B CN108878086B CN201811021539.XA CN201811021539A CN108878086B CN 108878086 B CN108878086 B CN 108878086B CN 201811021539 A CN201811021539 A CN 201811021539A CN 108878086 B CN108878086 B CN 108878086B
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- plate
- trip
- baffle
- remote signaling
- surge protector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/041—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature additionally responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
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Abstract
The invention discloses an improved surge protector for AC/DC (alternating current/direct current) use, which belongs to the technical field of electrical equipment, wherein a first indication plate is arranged on the side surface of a shell in a sliding manner, and a second indication plate and a remote signaling baffle are arranged on the other adjacent side surface in a sliding manner; the device also comprises a swing trip plate and a piezoresistor, wherein the swing trip plate is hinged on the side surface of the shell, the trip end is welded with a first pin of the piezoresistor through low-temperature soldering tin, and the trip end is connected with the second electrode pin through a conductive wire; the second elastic piece is connected between the second indication board and the remote signaling baffle, the second indication board and the swing trip plate are limited by the limiting component, a bidirectional energy storage mechanism is adopted through thermal trip, a breaking electrode adopts an isolation blocking technology, and particularly when the thermal trip is caused by overlarge SPD degradation leakage current in the application of direct current power supply lightning protection, the electrode is isolated by the remote signaling baffle, an electric arc is rapidly extinguished, and the device can be used in the alternating current and direct current power supply and distribution system, thereby bringing convenience to users.
Description
Technical Field
The invention belongs to the technical field of electrical equipment, and particularly relates to an improved surge protector for alternating current and direct current.
Background
In a low-voltage distribution system, surge protectors (Surge Protection Device, SPDs), also called lightning protectors, are commonly used for protecting overvoltage caused by external influences such as lightning, and are electronic devices for providing safety protection for various electronic equipment, instruments and meters, and communication lines. When a peak current or voltage is suddenly generated in an electric loop or a communication line due to external interference, the surge protector can conduct shunt in a very short time, so that damage of the surge to other equipment in the loop is avoided.
The surge protector is suitable for a power supply system with alternating current of 50/60HZ and rated voltage of 220V to 380V, protects surge caused by indirect lightning and direct lightning or other transient overvoltage, and is suitable for the requirements of surge protection in family houses, third industries and industrial fields.
In order to avoid overheat fire caused by power frequency or direct current flowing through the failure of the surge protector, a spring-driven metal output sheet welded by low-temperature soldering tin is arranged at one end electrode of the surge protector. When the overheat zinc oxide piezoresistor heat is transferred to the low-temperature break, and the low-temperature soldering tin is melted, the metal output piece driven by the spring is separated from the soldering point, so that a circuit flowing through the surge protector is disconnected, and the fire danger is avoided.
The existing surge protector mainly has the following defects:
(1) The thermal tripping mechanism inside the surge protector does not have a separation plate when tripping and cannot be used commonly for an alternating current power supply and a direct current power supply;
(2) The existing thermal tripping mechanism inside the surge protector is not suitable for large-specification discharge current, and is particularly not suitable for being installed in a shell with the width of 18 mm.
Disclosure of Invention
In view of the above, the present invention provides an improved ac/dc surge protector for improving the trip stability of the internal thermal trip mechanism, improving the internal structure, and timely feeding back the working state of the surge protector.
The technical scheme adopted by the invention is as follows: an improved surge protector for AC/DC use comprises a shell, a first electrode pin and a second electrode pin which are arranged on the shell, wherein a first indication plate is arranged on one side surface of the shell in a sliding way along the X direction, and a second indication plate and a remote signaling baffle are arranged on the other adjacent side surface in a sliding way along the Y direction; the first indicator board is provided with a first elastic piece for driving the first indicator board to slide and enables the first elastic piece to abut against the side face of the second indicator board; the voltage-sensitive resistor is characterized by further comprising a conductive swing trip plate and a voltage-sensitive resistor arranged in the shell, wherein the swing trip plate is positioned between the second indication plate and the remote signaling baffle, two ends of the swing trip plate are respectively a rotating end and a trip end, the rotating end is hinged to the side face of the shell, the trip end is welded and connected with a first pin of the voltage-sensitive resistor through low-temperature soldering tin, the trip end is connected with a second electrode pin through a conductive wire, and a second pin of the voltage-sensitive resistor is connected with the first electrode pin; the remote signaling device is characterized in that a second elastic piece is connected between the second indication plate and the remote signaling baffle, one end of the remote signaling baffle is propped against the trip end, an inclined surface for prying the trip end to rotate is arranged at the end, and the second indication plate and the swing trip plate are limited through a limiting component.
Further, the limiting assembly comprises a limiting buckle plate and a sliding plate arranged on the second indicating plate, a hollowed-out hole positioned between the rotating end and the releasing end is formed in the swinging releasing plate, and the limiting buckle plate is arranged on the inner side of the hollowed-out hole; the limiting buckle plate is provided with a buckling hole, and the end part of the sliding plate is provided with a limiting protruding block matched with the buckling hole.
Further, the first elastic piece is a compression spring, one end of the compression spring abuts against the first indication plate, and the other end of the compression spring abuts against the side face of the shell.
Further, the second elastic piece is set as an extension spring, the extension spring is located between the swing pinch plate and the end face of the shell, and hooks are arranged at two ends of the extension spring; the second indication board is provided with a hanging column matched with the hanging hook, and the end part of the remote signaling baffle is provided with a hanging hole matched with the hanging hook.
Further, the swing trip plate is U-shaped and buckled on the side surface of the shell.
Further, arc notches are symmetrically arranged on the rotating end; the shell is provided with a rotating shaft column matched with the arc notch.
Further, a turnover edge which is arc-shaped and turnover is arranged on one side of the tripping end, facing the remote signaling baffle.
Further, the first pin of the piezoresistor extends out of the side surface of the shell; the tripping end is provided with a notch matched with the first pin of the piezoresistor, and the bottom of the remote signaling baffle is provided with a clearance groove matched with the first pin of the piezoresistor.
Further, first sliding strips are symmetrically arranged on two sides of the remote signaling baffle, and first sliding grooves matched with the first sliding strips are formed in the side face of the shell; second sliding strips are symmetrically arranged on two sides of the first indication plate, and second sliding grooves matched with the second sliding strips are formed in the side face of the shell.
Further, the surface of the first indication board is provided with a red coating, and the surface of the second indication board is provided with a green coating.
The beneficial effects of the invention are as follows:
1. by adopting the improved surge protector for AC/DC use, the end part of the swing trip plate is welded on the pin of the piezoresistor through the low-temperature soldering tin, and the end part of the swing trip plate is abutted against the inclined surface on the remote signaling baffle under the action of the second elastic piece, when the current in a conducting circuit is overlarge, the piezoresistor can generate heat to melt the junction of the low-temperature soldering tin, and then the elastic potential energy of the second elastic piece is matched for releasing, so that on one hand, the end part of the swing trip plate can be pried up by the remote signaling baffle, and a circuit between the pin of the piezoresistor and the remote signaling baffle is disconnected; on the other hand, after the second indicator plate slides under the action of the second elastic piece, the first indicator plate loses the supporting and is moved to the upper part of the second indicator plate so as to display that the surge protector is in a failure state, the whole surge protector can be tripped in time, and the working state of the whole surge protector is displayed through a mechanical structure after the surge protector is tripped, so that reliable guarantee is provided for the stable operation of the surge protector;
2. the limiting assembly is used for limiting the sliding of the second indicating plate, and can be linked in the rotation process of the swing trip plate so as to release the limiting of the second indicating plate, so that the working state conversion between the first indicating plate and the second indicating plate is realized, and compared with a mode of adopting a circuit to control the indicating lamp, the structure has better stability and is not easy to damage;
3. the first pin of the piezoresistor extends out of the end face of the shell, a notch is formed in the swing trip plate, the first pin of the piezoresistor can be just clamped into the notch, low-temperature soldering tin processing is facilitated in the assembly process, and the difficulty in welding connection of the swing trip plate is reduced;
4. the bottom of the remote signaling baffle is provided with a position avoiding groove for accommodating the first pin of the piezoresistor, and when the remote signaling baffle is pushed by the elastic piece, the remote signaling baffle can be completely shielded above the first pin of the piezoresistor, so that a circuit is completely disconnected, and the reliability of circuit breaking is improved;
5. the end part of the swing trip plate adopts a mode that the arc notch is matched with the rotating shaft column to realize the hinging of the swing trip plate, so that the assembly difficulty can be reduced, and the swing trip plate can smoothly rotate and trip under the pushing action of the remote signaling baffle.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the ac/dc universal improved surge protector in an initial state;
fig. 2 is a schematic front view of the ac/dc universal improved surge protector according to the present invention in an initial state;
fig. 3 is a schematic diagram of the overall structure of the ac/dc universal improved surge protector according to the present invention during the trip process;
fig. 4 is a schematic diagram of the overall structure of the ac/dc universal improved surge protector in a tripped state.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the objects, technical solutions and advantages of the embodiments of the present invention will be more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in use of the product of the present invention as understood by those skilled in the art, merely for convenience of describing the present invention and simplifying the description, and is not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as indicating or implying a relative importance.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate medium. It will be apparent to those skilled in the art that the foregoing terms are used in the specific meaning of the embodiments of the present invention and that the technical solutions of the embodiments of the present invention will be clearly and fully described, and that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
As shown in fig. 1-4, the invention provides an improved surge protector for ac/dc, which comprises a housing 1, a first electrode pin 2 and a second electrode pin 3 arranged on the housing 1, wherein the housing 1 is in a rectangular structure, the housing 1 is used as a carrier of each part in the interior of the surge protector, and the first electrode pin 2 and the second electrode pin 3 are arranged on the bottom side surface of the housing 1. And (3) making: the four sides of the shell 1 are respectively a left side, a lower side, a right side and an upper side.
A first indicating plate 13 is slidably arranged on the upper side surface of the casing 1 along the X direction, and a second indicating plate 14 and a remote signaling baffle 6 are slidably arranged on the other adjacent side surface (i.e. the right side surface of the casing 1) along the Y direction, wherein the sliding directions of the second indicating plate 14 and the remote signaling baffle 6 are in the same direction, and the X direction and the Y direction represent two mutually perpendicular directions; the first indicator plate 13 is provided with a first elastic piece 19 for driving the first indicator plate to slide and enabling the first elastic piece to abut against the side face of the second indicator plate 14, the first indicator plate 13 is flush with the surface of the second indicator plate 14, and the second indicator plate 14 plays a limiting role on the first indicator plate 13; in the process of realizing the operation, the observation window of the surge protector is right above the second indicator plate 14, and when the surge protector is in the initial state, the surface of the second indicator plate 14 can be displayed through the observation window so as to obtain the working state of the surge protector.
The voltage-sensitive resistor comprises a shell 1, and is characterized by further comprising a conductive swing trip plate 4 and a voltage-sensitive resistor 5 arranged in the shell 1, wherein the swing trip plate 4 is positioned between a second indication plate 14 and a remote signaling baffle 6, the swing trip plate 4 is positioned on the right side surface of the shell 1, two ends of the swing trip plate 4 are respectively a rotating end and a trip end, the rotating end is hinged on the right side surface of the shell 1 so as to realize that the swing trip plate 4 can rotate relative to the right side surface of the shell 1, the trip end is welded and connected with a first pin 10 of the voltage-sensitive resistor 5 through low-temperature soldering tin so as to perform preliminary welding fixation on the trip end, the trip end is connected with a second electrode pin 3 through a conductive wire, and a second pin of the voltage-sensitive resistor 5 is connected with the first electrode pin 2 so as to realize that the first electrode pin 2, the voltage-sensitive resistor 5 and the second electrode pin 3 are connected in series to form a conducting circuit; the second indication board 14 and the remote signaling baffle 6 are connected with the second elastic piece 7, the second indication board 14 and the remote signaling baffle 6 slide close along opposite directions under the action of the second elastic piece 7, one end of the remote signaling baffle 6 is propped against the trip end and is provided with an inclined surface for prying the trip end to rotate, in the sliding process of the remote signaling baffle 6, the trip end of the swing trip board 4 can be pried up by the inclined surface, the trip end and the first pin 10 of the piezoresistor 5 are separated from each other to form an open circuit, the second indication board 14 and the swing trip board 4 are limited by the limiting component, the limiting component limits the position of the second indication board 14, the second limiting board is prevented from being pulled by the second elastic piece 7 in the initial state, and the limiting component releases the limiting state in the rotating trip process of the swing trip board 4, so that the position between the first indication board 13 and the second indication board 14 is switched under the action of the second elastic piece 7, and the purpose of switching the indication state is achieved.
The limiting assembly comprises a limiting buckle plate 17 and a sliding plate 16 arranged on the second indicating plate 14, the sliding plate 16 and the second indicating plate 14 are integrated, the sliding plate 16 is positioned in the sliding direction of the second indicating plate 14, the end part of the sliding plate 16 extends into the lower part of the swing buckle plate 4 and corresponds to the limiting buckle plate 17, the swing buckle plate 4 is provided with a hollowed-out hole positioned between a rotating end and a releasing end, and the inner side of the hollowed-out hole is provided with the limiting buckle plate 17; the limiting buckle plate 17 is provided with a buckle hole, the end part of the sliding plate 16 is provided with a limiting convex block 18 matched with the buckle hole, and when the release end of the swing release plate 4 is fixedly connected through low-temperature soldering tin, the buckle hole of the limiting buckle plate 17 is just assembled on the limiting convex block 18; the buckling hole is slightly larger than the limiting projection 18, so that when the swing trip plate 4 rotates, the swing trip plate 4 drives the limiting buckle plate 17 to rotate along with the swing trip plate, the limiting buckle plate 17 is gradually separated from the surface of the sliding plate 16, and the buckling hole can be separated from the limiting projection 18, so that the limit of the second indicator plate 14 is relieved.
The first elastic member 19 is a compression spring, and one end of the compression spring abuts against the first indicator plate 13, and the other end abuts against the side surface of the housing 1. Preferably, the end chute slot of the first indicator plate 13 is provided with a stop block positioned on the surface of the housing 1, the chute slot can slide freely relative to the stop block, the chute slot is provided with the compression spring, one end of the compression spring is connected with the bottom of the chute slot, the other end of the compression spring is connected with the surface of the stop block, the end of the first indicator plate 13 is always abutted against the side surface of the second indicator plate 14 under the action of the compression spring, and when the second indicator plate 14 slides along the Y direction, the first indicator plate 13 can move to the position right above the second indicator plate 14 and cover the surface of the first indicator plate 13.
The second elastic member 7 is an extension spring, the extension spring is located between the swing pinch plate 4 and the end face of the housing 1, hooks are arranged at two ends of the extension spring, and the hooks are of a conventional structure of the extension spring and are not described in detail at this time; the second indication board 14 is provided with a hanging column 15 matched with the hanging hook, the hanging column 15 and the second indication board 14 are also integrated, and the end part of the remote signaling baffle 6 is provided with a hanging hole matched with the hanging hook. Preferably, two hanging posts 15 are symmetrically arranged on one side of the second indicating plate 14, two hanging holes are symmetrically arranged on two sides of the end part of the remote signaling baffle plate 6, the two hanging posts 15 are respectively in one-to-one correspondence with the two hanging holes, two extension springs are arranged, and two ends of each extension spring are respectively hung on the corresponding hanging posts 15 and the corresponding hanging holes, so that when the extension springs are contracted, the second indicating plate 14 and the remote signaling baffle plate 6 are pulled to be close to each other.
The swing trip plate 4 is U-shaped and buckled on the side surface of the shell 1 so as to ensure the installation stability of the swing trip plate 4, and meanwhile, when the trip end of the swing trip plate 4 is welded and connected, the swing trip plate is not easy to loosen, and the difficulty of the assembly process is improved. The swing trip plate 4 adopting the structure is only a preferable technical scheme of the embodiment, the swing trip plate 4 can also be arranged into a U-shaped groove shape, and the swing trip plate 4 is positioned above the right side surface of the shell 1; alternatively, the swing latch plate 4 may be formed in a straight plate-like structure, and the function thereof may be realized.
Arc notches are symmetrically arranged on the rotating end; the shell 1 is provided with a rotating shaft column 8 matched with the arc notch. The arc notch is assembled on the rotating shaft column 8, when the remote signaling baffle 6 pushes the swing hot buckle plate to rotate, the swing buckle plate 4 can rotate relative to the rotating shaft column 8, and the swing buckle plate 4 and the shell 1 are hinged by adopting the structure, so that the remote signaling device has the characteristics of simple structure and low assembly difficulty.
And a turnover edge 9 which is arc-shaped and turnover is arranged on one side of the tripping end, facing the remote signaling baffle 6. The turnover edge 9 is abutted against the inclined surface of the remote signaling baffle 6, so that the turnover edge 9 and the inclined surface of the remote signaling baffle 6 interact with each other in the sliding process of the remote signaling baffle 6 to push the trip end and pry the trip end.
The first pin 10 of the piezoresistor 5 extends out of the right side surface of the shell 1; the trip end is equipped with the first pin 10 assorted notch 12 of piezo-resistor 5, and the first pin 10 stretches out of piezo-resistor 5 part card just goes into notch 12 in and the first pin 10 both sides of piezo-resistor 5 are all welded on the surface of trip end through low temperature soldering tin to realize the connection fixed to the trip end, the electrically conductive line is equipped with two, and two electrically conductive lines are located notch 12 both sides respectively and connect on the surface of trip end, the other end of two electrically conductive lines all with the second electrode is participated in 3 and is connected and switches on, in order to realize the switch on of circuit. Preferably, an inner concave surface is disposed on the trip end facing the end surface of the housing 1, the notch 12 is formed on the inner concave surface, and the design of the inner concave surface is adopted to facilitate the first pin 10 of the varistor 5 to be clamped in the notch 12.
The bottom of remote signaling baffle 6 is equipped with keeps away the position groove 11 with the first pin 10 assorted of piezo-resistor 5, keeps away the open end in position groove 11 with the first pin 10 of piezo-resistor 5 is corresponding, when being in the trip state, and remote signaling baffle 6 slides under the promotion effect of second elastic component 7, makes keep away the position groove 11 cover and shelter from in the first pin 10 top of piezo-resistor 5, separates the disconnection completely between the first pin 10 of piezo-resistor 5 and the trip end, realizes the complete disconnection of whole on circuit and can be general in exchanging, direct current power supply, has reliable security guarantee and extensive suitability.
The two sides of the remote signaling baffle 6 are symmetrically provided with first sliding strips, the side surface of the shell 1 is provided with first sliding grooves matched with the first sliding strips, and the first sliding strips can freely slide in the first sliding grooves; second sliding strips are symmetrically arranged on two sides of the first indication plate 13, second sliding grooves matched with the second sliding strips are formed in the side face of the shell 1, and the second sliding strips can slide in the second sliding grooves freely. The connection part of the second indication board 14 and the sliding plate 16 is provided with a limiting clamp which is in an L-shaped structure, when the second indication board 14 is pulled by the second elastic piece 7, the limiting clamp can be abutted against the edge of the end part of the swing trip plate 4 along with the displacement of the second indication board 14 so as to limit the displacement of the second indication board 14.
The surface of the first indicator plate 13 is provided with a red coating, the red color has an early warning effect, when an observation window of the surge protector is displayed as red color, the first indicator plate 13 is displaced, an internal thermal tripping mechanism is in a tripping state, the whole circuit is disconnected, and the surge protector is in a failure state; the surface of the second indicator board 14 is provided with a green coating, the green color has the meaning of normal operation, when the observation window of the surge protector shows green color, the second indicator board 14 is not displaced and the internal thermal tripping mechanism is in an initial state, the whole circuit is in a normal conduction state, and the surge protector is in a normal operation state.
Preferably, in this embodiment, the varistor 5 is an MOV zinc oxide varistor 5, and when the current is increased, the MOV zinc oxide varistor 5 generates heat rapidly and conducts heat through the first pin 10 of the varistor 5, so that the purpose of thermal tripping after the low-temperature soldering junction is thermally fused can be achieved.
The working principle of the invention is as follows:
the first pin electrode and the second pin electrode are connected into a circuit, at the moment, the trip end of the swing trip plate 4 is connected with the first pin 10 of the piezoresistor 5 by low-temperature soldering tin, and meanwhile, the trip end is communicated with the second pin electrode through a conductive wire, so that the whole circuit is connected; when a fault occurs in a circuit, the current in the piezoresistor 5 is increased, the piezoresistor 5 heats and leads the first pin 10 of the piezoresistor to be thermally conducted to the low-temperature soldering tin position, the low-temperature soldering tin node is heated and melted, the trip end and the first pin 10 of the piezoresistor 5 are separated from each other, at the moment, the second elastic piece 7 releases elastic force to enable the remote signaling baffle 6 to slide, the end inclined surface of the remote signaling baffle 6 pushes the swing trip plate 4, the swing trip plate 4 is pried to rotate, the limit buckle 17 also rotates along with rotation and releases limit on the sliding plate 16 in the rotating process, at the moment, the second indicator plate 14 is displaced under the action of the second elastic piece 7, the first indicator plate 13 loses the second indicator plate 14 to provide support for the second indicator plate, the first indicator plate 13 is displaced under the pushing action of the first elastic piece 19, and the switching of the working state of the surge protector is realized, so that the user is warned.
The invention is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present invention, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present invention, fall within the scope of protection of the present invention.
Claims (10)
1. The utility model provides an alternating current-direct current general improved generation surge protector, includes casing, locates first electrode pin and the second electrode pin on the casing, its characterized in that, be provided with first indicator plate along X direction on the side of casing on the side, be provided with second indicator plate and remote signaling baffle along Y direction on the other adjacent side on the side of casing on the side of sliding; the first indicator board is provided with a first elastic piece for driving the first indicator board to slide and enables the first elastic piece to abut against the side face of the second indicator board; the voltage-sensitive resistor is characterized by further comprising a conductive swing trip plate and a voltage-sensitive resistor arranged in the shell, wherein the swing trip plate is positioned between the second indication plate and the remote signaling baffle, two ends of the swing trip plate are respectively a rotating end and a trip end, the rotating end is hinged to the side face of the shell, the trip end is welded and connected with a first pin of the voltage-sensitive resistor through low-temperature soldering tin, the trip end is connected with a second electrode pin through a conductive wire, and a second pin of the voltage-sensitive resistor is connected with the first electrode pin; the remote signaling device is characterized in that a second elastic piece is connected between the second indication plate and the remote signaling baffle, one end of the remote signaling baffle is propped against the trip end, an inclined surface for prying the trip end to rotate is arranged at the end, and the second indication plate and the swing trip plate are limited through a limiting component.
2. The improved surge protector for alternating current and direct current as claimed in claim 1, wherein the limiting assembly comprises a limiting buckle plate and a sliding plate arranged on the second indicating plate, the swinging trip plate is provided with a hollowed-out hole between a rotating end and a trip end, and the inner side of the hollowed-out hole is provided with the limiting buckle plate; the limiting buckle plate is provided with a buckling hole, and the end part of the sliding plate is provided with a limiting protruding block matched with the buckling hole.
3. The improved ac/dc surge protector as claimed in claim 1 wherein said first resilient member is provided as a compression spring with one end of the compression spring abutting said first indicator plate and the other end abutting the side of said housing.
4. The improved surge protector for ac/dc use according to claim 1, wherein the second elastic member is provided as an extension spring, the extension spring is located between the swing trip plate and the end face of the housing, and hooks are provided at both ends of the extension spring; the second indication board is provided with a hanging column matched with the hanging hook, and the end part of the remote signaling baffle is provided with a hanging hole matched with the hanging hook.
5. The ac/dc universal improved surge protector of claim 1, 2 or 4 wherein said swing trip plate is U-shaped and snaps onto the sides of said housing.
6. The improved surge protector for ac/dc use according to claim 5, wherein the rotating end is symmetrically provided with arc notches; the shell is provided with a rotating shaft column matched with the arc notch.
7. The improved surge protector for ac/dc use of claim 1 wherein said trip end has a turnover edge which is curved toward said remote signaling baffle.
8. The improved ac/dc universal surge protector of claim 1 wherein said varistor first leg extends beyond said side of said housing; the tripping end is provided with a notch matched with the first pin of the piezoresistor, and the bottom of the remote signaling baffle is provided with a clearance groove matched with the first pin of the piezoresistor.
9. The improved surge protector for AC/DC use according to claim 1, wherein the two sides of the remote signaling baffle are symmetrically provided with a first sliding strip, and the side surface of the shell is provided with a first sliding groove matched with the first sliding strip; second sliding strips are symmetrically arranged on two sides of the first indication plate, and second sliding grooves matched with the second sliding strips are formed in the side face of the shell.
10. The improved ac/dc universal surge protector of claim 1 wherein the surface of said first indicator plate is provided with a red coating and the surface of said second indicator plate is provided with a green coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021539.XA CN108878086B (en) | 2018-09-03 | 2018-09-03 | Improved surge protector for AC/DC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021539.XA CN108878086B (en) | 2018-09-03 | 2018-09-03 | Improved surge protector for AC/DC |
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| Publication Number | Publication Date |
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| CN108878086A CN108878086A (en) | 2018-11-23 |
| CN108878086B true CN108878086B (en) | 2023-10-13 |
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| CN201811021539.XA Active CN108878086B (en) | 2018-09-03 | 2018-09-03 | Improved surge protector for AC/DC |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112054496B (en) * | 2020-09-04 | 2022-06-03 | 上海闪替电子科技有限公司 | Surge protection module |
| CN114552548B (en) * | 2022-03-05 | 2023-08-01 | 安徽诺希电气设备科技有限公司 | Overvoltage protector with high safety performance |
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| CN203339680U (en) * | 2013-07-30 | 2013-12-11 | 深圳市中鹏电子有限公司 | Composite SPD overcurrent and overheating protection device |
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|---|---|
| CN108878086A (en) | 2018-11-23 |
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