CN212380320U - Tripping mechanism - Google Patents

Abstract

The utility model provides a tripping mechanism, wherein, a driving mechanism, a fixing piece, a movable contact piece and a tripping piece are arranged in the tripping mechanism; the fixed part is fixedly connected with the driving mechanism, the movable contact part is sleeved on the fixed part, the movable contact part is in transmission connection with the turnover plate of the driving mechanism, the turnover plate is in transmission connection with the release part, the turnover plate rotates under the action of the movable contact part, and the turnover plate drives the release part to rotate one end of the release part to be hinged through the rotating shaft; the other end of the tripping piece is movably connected with the fixing piece in a contact manner to realize closing and tripping. The utility model discloses the beneficial effect of scheme: simple structure is reliable and the response is fast, is showing the sensitivity, reliability and the stability that improve combined floodgate and dropout action to can repeat combined floodgate and dropout, improve the availability factor, satisfy simultaneously and not detain when lightning current or surge current rush appear, the requirement of quick accurate dropout when power frequency current, short-circuit current or overcurrent appear breaks away from danger, improves surge protector's reliability, security and life, ensures the safety of low pressure distribution lines.

Description

Tripping mechanism

Technical Field

The utility model belongs to the technical field of low-voltage apparatus, concretely relates to tripping device.

Background

Surge Protector (SPD) is a device used for surge protection of power and signal devices, and is an indispensable device in low-voltage power distribution systems.

At present, in a low-voltage distribution environment, a voltage-limiting surge protector is most commonly used, and a piezoresistor with the advantages of quick response, low residual voltage, high impact resistance and the like is used as a lightning protection element. However, the characteristics of the piezoresistor have the defects of easy deterioration, unstable deterioration state, discontinuous resistance value change and the like, so that the piezoresistor is deteriorated after multiple lightning strokes or surge impacts, and generates leakage current and heat at the same time; or when power frequency short-circuit current appears in the circuit, the piezoresistor is conducted to generate heat, so that fire and other dangers are caused.

Firstly, a thermal tripping device based on the principle that low-temperature solder meets high-temperature melting is installed at a pin of a piezoresistor, when the piezoresistor generates heat, the temperature is transmitted to a low-temperature welding point, the solder melts to enable a tripping mechanism connected with the welding point to act, and then a piezoresistor channel is broken to enable a circuit to be separated from danger; and secondly, a circuit protection device (such as a circuit breaker or a fuse) is connected in series on a path where the surge protector is positioned, and when short-circuit current occurs in the path, the circuit protection device acts to cut off the path, so that the line is separated from danger.

However, the utility model discloses a discovery has following defect among the prior art: first, in the first mode, the operation of the thermal trip device is based on the response of the low-temperature solder to temperature, the low-temperature solder is susceptible to the environment, and the melting point of the low-temperature solder is unstable; and the phenomenon that the tripping mechanism cannot be disengaged due to the adhesion of welding fluxes and wire drawing can occur under the constraint of a welding process; meanwhile, after the low-temperature solder of the thermal tripping device is fused, the surge protector can not be used any more, and the surge protector needs to be welded or replaced again and cannot be used repeatedly; next, in the second aspect, taking a circuit breaker as an example, the circuit breaker needs to satisfy a requirement that the circuit breaker does not operate immediately when the impact of the lightning current or the surge current (kA class, duration μ s class) comes, and operates immediately when the impact of the lightning current or the surge current (a class, duration ms class) comes. Because the contact mechanism inside the circuit breaker is repelled by Lorentz force when strong surge current flows, the requirement is difficult to meet; in addition, because the deterioration state of the piezoresistor is unstable, the short-circuit current in the line is different from several amperes to several hundred amperes, and the circuit protection device is difficult to accurately and timely act when any short-circuit current value passes through, so that the reliability and the safety of the surge protector are lower.

Therefore, in order to solve the above problems, it is necessary to provide a tripping mechanism and a surge protector using the same, which simultaneously satisfy the requirements of quick and accurate tripping when lightning current or surge current is applied and when power frequency current, short circuit current or overload current is applied.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tripping device and adoption tripping device's surge protector to solve the problem that prior art exists, tripping device simple structure is reliable and the response is fast, show sensitivity, reliability and the stability that improves combined floodgate and tripping action, and can repeat combined floodgate and dropout, improve the availability factor, satisfy simultaneously and not break off when lightning current or surge current strike appear, the requirement of quick accurate dropout when power frequency current, short-circuit current or overcurrent appear, improve surge protector's reliability, security and life, ensure the safety of low pressure distribution lines, and needn't adopt thermal tripping device again or additionally increase circuit protection device again (like circuit breaker or fuse), reduce user's use cost.

In order to achieve the above object, an embodiment of the present invention provides a trip mechanism, which is characterized in that the trip mechanism comprises a driving mechanism, a fixing member, a movable contact member and a trip member; the fixed piece is fixedly connected with the driving mechanism, the movable contact piece is sleeved on the fixed piece, the driving mechanism comprises a turning plate, the movable contact piece is in transmission connection with the turning plate, the turning plate is in transmission connection with the release piece, the turning plate rotates under the action of the movable contact piece, and the turning plate drives the release piece to rotate;

the movable contact piece comprises a button, a reset elastic piece, a rotating shaft and a torsion spring piece, wherein the reset elastic piece is arranged in the button, the rotating shaft is arranged in the button, and the torsion spring piece is sleeved on the rotating shaft;

one end of the release piece is hinged through the rotating shaft; the other end of the tripping piece is movably connected with the fixing piece in a contact manner to realize closing and tripping.

Furthermore, the movable contact piece also comprises a push rod, the turning plate is arranged outside the button, and the push rod is matched with the turning plate and is in movable contact connection with the turning plate.

Furthermore, actuating mechanism still includes casing, driver and joint board, the joint board sets up in the casing, the driver with turn over the board drive and be connected, turn over the board with joint board matches and activity joint, the driver is through the drive turn over the rotation of board and realize turning over the separation and being connected of board and joint board.

Furthermore, the turning plate is provided with a pushing part and a clamping hook part, the pushing part and the clamping hook part are connected and integrally formed, the clamping hook part is matched with and movably clamped with the clamping plate, the driver and/or the ejector rod drives the clamping hook part to rotate, the pushing part rotates along with the rotation of the clamping hook part to realize the separation and connection of the clamping hook part and the clamping plate, and the pushing part rotates along with the rotation of the turning plate.

Furthermore, the clamping hook part comprises a connecting body and a clamping hook body arranged on the connecting body, the clamping hook body is matched with and movably clamped with the clamping plate, the driver and/or the ejector rod drive the connecting body to rotate, and the clamping hook body rotates along with the rotation of the connecting body to realize the separation and connection of the clamping hook body and the clamping plate;

the pushing part rotates along with the rotation of the connecting body, and the pushing part pushes the fastening releasing piece to rotate.

Further, the fixing piece is fixed on the shell of the driving mechanism and comprises a first slotted portion and a second slotted portion, and a solid portion is arranged between the first slotted portion and the second slotted portion.

Further, the take-off piece comprises a connecting portion, a rod body, a second clamping portion and a first clamping portion, one end of the rod body is the connecting portion, the other end of the rod body is the first clamping portion, the second clamping portion is arranged to face towards the pushing portion one side, the first clamping portion is in movable contact with the first slotting portion and is connected with the pushing portion, the second clamping portion is in driving connection with the pushing portion, and the second clamping portion corresponds to the second slotting portion.

Furthermore, the pushing part of the turning plate is arranged on the outer side of the shell, and the hook part of the turning plate is arranged in the shell.

Further, the driver is at least one of an electromagnetic coil, an electric push rod, a hydraulic rod and a pneumatic rod.

Furthermore, first joint portion is equipped with the joint face of mutually supporting with first fluting portion, can be a plane, inclined plane, cambered surface or its arbitrary combination.

Furthermore, the second clamping part is provided with a pushing surface which is matched with the pushing part, and the pushing surface can be a plane, an inclined surface, an arc surface or any combination thereof.

Further, the direction of the torsion spring force is clockwise.

Further, the return elastic member is at least one of a coil spring, a torsion spring and a leaf spring.

The specific working process of the tripping mechanism of the utility model is that the initial state is that the first clamping part of the tripping piece and the first slotting part of the fixing piece are in a tripping state, the circuit is in a disconnection state, the clamping hook part of the turning plate and the clamping plate are in a tripping state, when the button is pressed, the clamping hook part of the turning plate is pressed down by the ejector rod, the clamping hook part is connected with the clamping plate, the tripping piece moves downwards along the fixing piece, the tripping piece is under the action of the clockwise force of the torsional spring piece, when the first clamping part moves to the first slotting part of the fixing piece, the first clamping part is clamped with the first slotting part, after the button is released, the first clamping part of the tripping piece is further clamped with the first slotting part of the fixing piece under the resilience effect of the reset elastic piece, therefore, the circuit is conducted, the switching-on is realized, the operation is convenient and quick, and the reliability and the stability are high; the tripping operation process is that the driver acts to drive the turning plate to rotate so as to enable the hook part of the turning plate to be disconnected from the clamping plate, the pushing part rotates along with the rotation of the turning plate so as to push the second clamping part of the tripping piece, and then the tripping piece rotates anticlockwise so as to enable the first clamping part of the tripping piece to be disconnected from the first slotting part of the fixing piece, so that a circuit is disconnected, and the circuit is disconnected from danger; the tripping mechanism is simple and reliable in structure and quick in response, sensitivity, reliability and stability of switching-on and tripping actions are obviously improved, switching-on and tripping can be repeated, using efficiency is improved, and a thermal tripping device is not needed or a circuit protection device (such as a circuit breaker or a fuse) is not needed to be additionally arranged.

The embodiment of the utility model also provides an adopt tripping device's surge protector, including at least one tripping device as aforementioned embodiment.

Further, the surge protector further comprises a lightning protection element, a current transformer and a Micro Control Unit (MCU), wherein the lightning protection element comprises at least one piezoresistor, the tripping mechanism is connected in series with a line where the lightning protection element is located, the signal detection device is sleeved on the line where the lightning protection element is located, the Micro Control Unit is respectively connected with the current transformer and a driver of the tripping mechanism and is configured to receive a current signal sensed by the current transformer and Control the driver to operate to drive the turning plate to rotate when detecting that the current magnitude and duration of the current signal exceed a set current threshold and a set time threshold simultaneously, so that the hook portion of the turning plate is disengaged from the clamping plate, the pushing portion rotates along with the rotation of the turning plate to push the second clamping portion of the disengaging member, the tripping piece is rotated to enable the first clamping part to be tripped from the first slotting part of the fixing piece, so that the circuit is disconnected and the circuit is separated from danger; the micro control unit determines the current type according to the current size and duration, and the micro control unit does not trip when lightning current or surge current impact is determined, and trips when power frequency current, short circuit current or overload current is determined, so that the micro control unit simultaneously meets the requirements of not tripping when lightning current or surge current impact occurs, and rapidly and accurately tripping when power frequency current, short circuit current or overload current occurs.

Furthermore, the surge protector also comprises a communication interface connected with the micro control unit, the communication interface is used for being in communication connection with external equipment, the surge protector can be connected with the external equipment such as an intelligent concentrator and a monitoring host and used for local and/or remote monitoring and management, and the intelligent concentrator can adopt products capable of realizing data acquisition, processing, uploading and issuing.

Tripping device and adopt tripping device's surge protector, beneficial effect is: the problem that prior art exists can be solved, tripping device simple structure is reliable and the response is fast, show the sensitivity, reliability and the stability that improve combined floodgate and dropout action, and can repeat combined floodgate and dropout, improve the availability factor, satisfy simultaneously and not detain when lightning current or surge current rush appear, the requirement of quick accurate dropout when power frequency current, short-circuit current or overload current appear, the broken line makes the circuit break away from danger, improve surge protector's reliability, security and life, ensure the safety of low pressure distribution lines, and needn't adopt thermal tripping device again or additionally increase circuit protection device (like circuit breaker or fuse) again, user's use cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a trip mechanism provided in embodiment 1 of the present invention;

fig. 2 is a partial cross-sectional view of a trip mechanism provided in embodiment 1 of the present invention;

fig. 3 is a partial cross-sectional view of a trip mechanism provided in embodiment 2 of the present invention;

fig. 4 is a partial cross-sectional view of a trip mechanism provided in embodiment 3 of the present invention;

fig. 5 is a partial cross-sectional view of a trip mechanism provided in embodiment 4 of the present invention;

fig. 6 is a partial cross-sectional view of a trip mechanism provided in embodiment 5 of the present invention;

fig. 7 is a partial cross-sectional view of a trip mechanism provided in embodiment 6 of the present invention;

fig. 8 is a schematic structural view of a release member of a release mechanism according to embodiment 7 of the present invention;

fig. 9 is a partial cross-sectional view of a trip mechanism provided in embodiment 8 of the present invention;

fig. 10 is a schematic structural diagram of a surge protector employing a trip mechanism according to embodiment 9 of the present invention;

fig. 11 is a block diagram of a surge protector employing a trip mechanism according to embodiment 10 of the present invention;

fig. 12 is a block diagram illustrating a surge protector employing a trip mechanism according to embodiment 11 of the present invention;

in the drawings: 1. a drive mechanism; 101. a housing; 102. a driver; 103. turning over a plate; 104. a clamping and connecting plate; 105. a pushing part; 106. a hook portion; 1601. a linker; 1062. a hook body; 2. A fixing member; 201. a first grooved section; 202. a second grooved section; 203. a solid portion; 3. a movable contact member; 301. a button; 302. a restoring elastic member; 303. a rotating shaft; 304. a torsion spring member; 305. a top rod; 4. releasing the fastener; 401. a connecting portion; 402. a first clamping part; 4021. a clamping surface; 403. A rod body; 404. a second clamping part; 4041. pushing the surface; 5. a lightning protection element; 6. a current transformer; 7. a micro control unit; 8. a communication interface; 9. a line; 10. a surge protector; 1001. A trip mechanism.

Detailed Description

The following describes the tripping mechanism and the surge protector using the tripping mechanism in detail according to the embodiments of the present invention with reference to the accompanying drawings.

A trip mechanism, comprising: the device comprises a driving mechanism 1, a fixed part 2, a movable contact part 3 and a release part 4; the fixed part 2 is fixedly connected with the driving mechanism 1, the movable contact piece 3 is sleeved on the fixed part 2, the driving mechanism 1 comprises a turning plate 103, the movable contact piece 3 is in transmission connection with the turning plate 103, the turning plate 103 is in transmission connection with the release piece 4, the turning plate 103 rotates under the action of the movable contact piece 3, and the turning plate 103 drives the release piece 4 to rotate;

the movable contact piece 3 comprises a button 301, a reset elastic piece 302, a rotating shaft 303 and a torsion spring piece 304, wherein the reset elastic piece 302 is arranged in the button 301, the rotating shaft 303 is arranged in the button 301, and the torsion spring piece 304 is sleeved on the rotating shaft 303;

one end of the release fastener 4 is hinged through a rotating shaft 303; the other end of the tripping piece 4 is movably connected with the fixing piece 2 in a contact manner to realize closing and tripping.

The movable contact piece 3 further comprises a top rod 305 and a turning plate 103, and the top rod 305 is matched with the turning plate 103 and is in movable contact connection with the turning plate 103.

The driving mechanism 1 further comprises a shell 101, a driver 102 and a clamping plate 104, the clamping plate 104 is arranged in the shell 101, the driver 102 is in driving connection with the turning plate 103, the turning plate 103 is matched and movably clamped with the clamping plate 104, and the driver 102 drives the turning plate 103 to rotate to realize the separation and connection of the turning plate 103 and the clamping plate 104.

The turning plate 103 is provided with a pushing part 105 and a clamping hook part 106, the pushing part 105 is connected with the clamping hook part 106 and integrally formed, the clamping hook part 106 is matched with the clamping plate 104 and movably clamped, the driver 102 and/or the ejector rod 305 drive the clamping hook part 106 to rotate, the pushing part 105 rotates along with the rotation of the clamping hook part 106 to realize the separation and connection of the clamping hook part 106 and the clamping plate 104, and the pushing part 105 rotates along with the rotation of the turning plate 103.

The hook part 106 comprises a connecting body 1601 and a hook body 1062 arranged on the connecting body 1601, the hook body 1062 is matched with and movably clamped with the clamping plate 104, the driver 102 and/or the ejector rod 305 drive the connecting body 1601 to rotate, and the hook body 1062 rotates along with the rotation of the connecting body 1601 to realize the separation and connection of the hook body 1062 and the clamping plate 104;

the pushing portion 105 rotates with the rotation of the connecting body 1601, and the pushing portion 105 pushes the release member 4 to rotate.

The fixing member 2 is fixed to the housing 101 of the drive mechanism 1, and the fixing member 2 includes a first grooved portion 201 and a second grooved portion 202, and a solid portion 203 is provided between the first grooved portion 201 and the second grooved portion 202.

The fastening component 4 comprises a connecting portion 401, a rod body 403, a second clamping portion 404 and a first clamping portion 402, wherein one end of the rod body 403 is the connecting portion 401, the other end of the rod body 403 is the first clamping portion 402, the second clamping portion 404 is provided with the rod body 403 towards one side of the pushing portion 105, the first clamping portion 402 is in movable contact with the first slotting portion 201 and is connected with the pushing portion 105, the second clamping portion 404 is in driving connection with the pushing portion 105, and the second clamping portion 404 is corresponding to the second slotting portion 202.

The pushing portion 105 is disposed outside the housing 101, and the hook portion 106 is disposed inside the housing.

The first clamping portion 402 has a clamping surface matching with the first slot 201;

the second engaging portion 404 is provided with a pushing surface cooperating with the pushing portion 105.

The direction of the torsion spring member 304 is clockwise;

the return elastic member 302 is at least one of a coil spring, a torsion spring, and a leaf spring.

Example 1

Fig. 1 is a schematic structural view of a trip mechanism provided in embodiment 1 of the present invention; fig. 2 is a partial cross-sectional view of a trip mechanism provided in embodiment 1 of the present invention;

a trip mechanism, comprising: the device comprises a driving mechanism 1, a fixed part 2, a movable contact part 3 and a release part 4; the fixed part 2 is fixedly connected with the driving mechanism 1, the movable contact piece 3 is sleeved on the fixed part 2, the driving mechanism 1 comprises a turning plate 103, the movable contact piece 3 is in transmission connection with the turning plate 103, the turning plate 103 is in transmission connection with the release piece 4, the turning plate 103 rotates under the action of the movable contact piece 3, and the turning plate 103 drives the release piece 4 to rotate;

the movable contact piece 3 comprises a button 301, a reset elastic piece 302, a rotating shaft 303 and a torsion spring piece 304, wherein the reset elastic piece 302 is arranged in the button 301, the rotating shaft 303 is arranged in the button 301, and the torsion spring piece 304 is sleeved on the rotating shaft 303;

one end of the release fastener 4 is hinged through a rotating shaft 303; the other end of the tripping piece 4 is movably connected with the fixing piece 2 in a contact manner to realize closing and tripping.

The tripping mechanism of this embodiment specifically works in such a way that the initial state is that the tripping element 4 and the fixing element 2 are in a tripping state, the circuit is in a disconnecting state, when the button 301 is pressed, the turning plate 103 is pressed, the tripping element 4 is moved downward along the fixing element 2, one end of the tripping element 4 is hinged through the rotating shaft 303, the torsion spring element 304 is sleeved on the rotating shaft 303, the other end of the tripping element 4 is connected with the fixing element 2 in a movable contact manner, the tripping element 2 is under the clockwise force of the torsion spring element 304, when the end of the tripping element 4 is moved to the slot of the fixing element 2, the other end of the tripping element 4 is clamped with the slot of the fixing element 2, and after the button 301 is released, under the resilience of the elastic reset element 302, the other end of the tripping element 4 is further clamped with the slot of the fixing element 2, so as to conduct the circuit and realize closing, the operation is convenient and fast, and the reliability and the stability are high; the tripping process is that the driving mechanism 1 acts to drive the turning plate 103 to rotate along with the rotation of the turning plate 103, so that the tripping piece 4 rotates anticlockwise to trip the bulge at the other end of the tripping piece 4 from the groove of the fixing piece 2, and a circuit is disconnected to break the circuit away from danger; the tripping mechanism is simple and reliable in structure and quick in response, sensitivity, reliability and stability of switching-on and tripping actions are obviously improved, switching-on and tripping can be repeated, the use efficiency is improved, and a thermal tripping device is not needed or a circuit protection device (such as a circuit breaker or a fuse) is not needed to be additionally arranged.

Example 2

Fig. 3 is a partial cross-sectional view of a trip mechanism provided in embodiment 2 of the present invention;

besides the technical scheme of the embodiment 1, the method also comprises the following technical scheme:

the movable contact piece 3 further comprises a push rod 305, the outside of the flap setting button can be arranged on the side wall or the top of the button, and the tail end of the push rod 305 is movably connected with the flap 103 in a contact manner and matched with the flap 103, so that the flap 103 is enabled to be turned over under stress.

Example 3

Fig. 4 is a partial cross-sectional view of a trip mechanism provided in embodiment 3 of the present invention;

besides the technical solutions of the embodiment 1 or 2, the following technical solutions are also included:

the driving mechanism 1 further comprises a shell 101, a driver 102 and a clamping plate 104, the clamping plate 104 is arranged in the shell 101, the driver 102 is in driving connection with the turning plate 103, the turning plate 103 is matched and movably clamped with the clamping plate 104, and the driver 102 drives the turning plate 103 to rotate to realize the separation and connection of the turning plate 103 and the clamping plate 104.

The specific working process of the tripping mechanism of the utility model is that the initial state is that the tripping element 4 and the fixing element 2 are in a tripping state, the circuit is in a disconnection state, the turning plate 103 and the clamping plate 104 are in a disconnection state, the turning plate 103 is pressed when the button 301 is pressed, the turning plate 103 is connected with the clamping plate 104 in a clamping way, the tripping element 4 moves downwards along the fixing element 2, one end of the tripping element 4 is hinged through a rotating shaft 303, the torsion spring element 304 is sleeved on the rotating shaft 303, the other end bulge of the tripping element 4 is movably connected with the fixing element 2 in a contact way, the tripping element 2 moves to the slotting position of the fixing element 2 under the action of the clockwise force of the torsion spring element 304, when the tail end bulge of the tripping element 4 moves to the slotting position of the fixing element 2, the other end bulge of the tripping element 4 is clamped with the slotting position of the fixing element 2, at the moment, after the button 301 is released, under the rebound action of the reset, therefore, the circuit is conducted, the switching-on is realized, the operation is convenient and quick, and the reliability and the stability are high; the tripping process is that the driver 102 acts to drive the turning plate 103 to rotate so as to disconnect the turning plate 103 from the clamping plate 104, the turning plate 103 rotates along with the rotation of the turning plate 103, the tripping piece 4 rotates anticlockwise so as to enable the bulge at the other end of the tripping piece 4 to trip from the notch of the fixing piece 2, a circuit is disconnected, and the circuit is disconnected from danger; the tripping mechanism is simple and reliable in structure and quick in response, sensitivity, reliability and stability of switching-on and tripping actions are obviously improved, switching-on and tripping can be repeated, the use efficiency is improved, and a thermal tripping device is not needed or a circuit protection device (such as a circuit breaker or a fuse) is not needed to be additionally arranged.

Example 4

Fig. 5 is a partial cross-sectional view of a trip mechanism provided in embodiment 4 of the present invention;

besides the technical scheme of the embodiment 3, the method also comprises the following technical scheme:

the turning plate 103 is provided with a pushing part 105 and a clamping hook part 106, the pushing part 105 is connected with the clamping hook part 106 and integrally formed, the plane where the pushing part 105 is located and the plane where the clamping hook part 106 is located are integrally and vertically arranged, the clamping hook part 106 is matched with the clamping plate 104 and movably clamped, the driver 102 and/or the ejector rod 305 drive the clamping hook part 106 to rotate, the pushing part 105 rotates along with the rotation of the clamping hook part 106 to realize the separation and connection of the clamping hook part 106 and the clamping plate 104, and the pushing part 105 rotates along with the rotation of the turning plate 103.

The hook 106 is disposed in the housing 101, and the pushing 105 is disposed outside the housing 101.

The specific working process of the tripping mechanism of the utility model is that the initial state is that the tripping element 4 and the fixing element 2 are in a tripping state, the circuit is in a disconnection state, the clamping hook part 106 of the turning plate 103 and the clamping plate 104 are in a tripping state, the turning plate 103 is pressed when the button 301 is pressed, the clamping hook part 106 of the turning plate 103 is connected with the clamping plate 104 in a clamping way, the tripping element 4 moves downwards along the fixing element 2 at the same time, one end of the tripping element 4 is hinged through a rotating shaft 303, the torsion spring element 304 is sleeved on the rotating shaft 303, the other end bulge of the tripping element 4 is movably connected with the fixing element 2 in a contact way, the tripping element 2 is under the action of the clockwise force of the torsion spring element 304, when the tail end bulge of the tripping element 4 moves to the groove of the fixing element 2, the other end bulge of the tripping element 4 is connected with the groove of the fixing element 2 in a, further, the bulge at the other end of the release piece 4 is firmly clamped with the notch of the fixing piece 2, so that a circuit is conducted, switching-on is realized, the operation is convenient and fast, and the reliability and the stability are high; the tripping process is that the driver 102 acts to drive the turning plate 103 to rotate so as to disconnect the turning plate 103 from the clamping plate 104, the pushing part 105 of the turning plate 103 rotates the tripping piece 4 anticlockwise so that the bulge at the other end of the tripping piece 4 is tripped from the notch of the fixing piece 2 along with the rotation of the turning plate 103, and a circuit is disconnected so as to disconnect the danger of the circuit; the tripping mechanism is simple and reliable in structure and quick in response, sensitivity, reliability and stability of switching-on and tripping actions are obviously improved, switching-on and tripping can be repeated, the use efficiency is improved, and a thermal tripping device is not needed or a circuit protection device (such as a circuit breaker or a fuse) is not needed to be additionally arranged.

Example 5

Fig. 6 is a partial cross-sectional view of a trip mechanism provided in embodiment 5 of the present invention;

besides the technical scheme of the embodiment 3, the method also comprises the following technical scheme:

the hook part 106 comprises a connecting body 1601 and a hook body 1062 arranged on the connecting body 1601, the hook body 1062 is matched with and movably clamped with the clamping plate 104, the driver 102 and/or the ejector rod 305 drive the connecting body 1601 to rotate, and the hook body 1062 rotates along with the rotation of the connecting body 1601 to realize the separation and connection of the hook body 1062 and the clamping plate 104;

the pushing portion 105 rotates with the rotation of the connecting body 1601, and the pushing portion 105 pushes the release member 4 to rotate.

Example 6

Fig. 7 is a partial cross-sectional view of a trip mechanism provided in embodiment 6 of the present invention;

in addition to the technical solutions of any of embodiments 1 to 6, the following technical solutions are also included:

the fixing member 2 is fixed to the housing 101 of the drive mechanism 1, and the fixing member 2 includes a first grooved portion 201 and a second grooved portion 202, and a solid portion 203 is provided between the first grooved portion 201 and the second grooved portion 202.

The fastening component 4 comprises a connecting portion 401, a first clamping portion 402, a rod body 403, a second clamping portion 404 and a connecting portion 401 arranged at one end of the rod body 403, the other end of the rod body 403 is the first clamping portion 402, the second clamping portion 404 is provided with the rod body 403 towards one side of the pushing portion 105, the first clamping portion 402 is in movable contact with the first slotting portion 201 and is connected with the pushing portion 105, the second clamping portion 404 is in driving connection with the pushing portion 105, and the second clamping portion 404 is corresponding to the second slotting portion 202.

The specific working process of the tripping mechanism of the utility model is that the initial state is that the first clamping part 402 of the tripping part 4 and the first slot part 201 of the fixing part 2 are in a tripping state, the circuit is in a disconnection state, the clamping hook part 106 of the turning plate 103 and the clamping plate 104 are in a tripping state, when the button 301 is pressed, the ejector pin 305 presses the clamping hook part 106 of the turning plate 103 to make the clamping hook part 106 and the clamping plate 104 clamped and connected, and simultaneously the tripping part 4 moves downwards along the fixing part 2, and the tripping part 2 is under the action of the clockwise force of the torsion spring 304, when the first clamping part 402 moves to the first slot part 201 of the fixing part 2, the first clamping part 402 is clamped with the first slot part 201, at the moment, after the button 301 is released, under the resilience of the fixing part 302, the first clamping part 402 of the tripping part 4 is further clamped with the first slot part 201 of the fixing part 2 firmly, therefore, the circuit is conducted, the switching-on is realized, the operation is convenient and quick, and the reliability and the stability are high; the tripping operation process is that the driver 102 acts to drive the turning plate 103 to rotate so as to enable the hook part 106 to be disconnected from the clamping plate 104, the pushing part 105 rotates along with the rotation of the turning plate 103 so as to push the second clamping part 404 of the tripping part 4, and then the tripping part 4 rotates anticlockwise so as to enable the first clamping part 402 to be disconnected from the first slot part 201 of the fixing part 2, so that a circuit is disconnected, and the circuit is disconnected from danger; the tripping mechanism is simple and reliable in structure and quick in response, sensitivity, reliability and stability of switching-on and tripping actions are obviously improved, switching-on and tripping can be repeated, the use efficiency is improved, and a thermal tripping device is not needed or a circuit protection device (such as a circuit breaker or a fuse) is not needed to be additionally arranged.

Example 7

Fig. 8 is a schematic structural view of the release unit 4 of the release mechanism according to embodiment 7 of the present invention;

in addition to the technical solution of any of embodiment 6, the method further comprises the following technical solutions:

the first clamping portion 402 is provided with a clamping surface 4021 matched with the first slot 201, so that the first clamping portion 402 and the first slot 201 are firmly clamped;

the second clamping portion 404 is provided with a pushing surface 4041 which is matched with the pushing portion 105; in the tripping process, the driver 102 drives the turning plate 103 to rotate, the pushing part 105 rotates along with the turning plate 103, the pushing part 105 pushes the second clamping part 404 of the tripping part 4 through the pushing surface 4041, the tripping part 4 is pushed to rotate anticlockwise around the rotating shaft 303 under the action of the second clamping part 404, and the first clamping part 402 is separated from the first slot part 201, so that the tripping part 4 is tripped.

The direction of torsion spring 304 power is clockwise, and under the effect of torsion spring 304 clockwise power, when its first joint portion 402 removed the first slot 201 of mounting 2, torsion spring 304 power down clockwise rotation took turns to, made its first joint portion 402 and first slot 201 looks joint.

The elastic reset element 302 is at least one of a coil spring, a torsion spring and a leaf spring, which ensures that the button 301 is reset and the movable contact element is reset.

Example 8

Fig. 9 is a partial cross-sectional view of a trip mechanism provided in embodiment 8 of the present invention;

the tripping mechanism comprises a driving mechanism 1, a fixed part 2, a movable contact part 3 and a tripping part 4; the driving mechanism 1 comprises a shell 101, a driver 102, a turning plate 103 and a clamping plate 104, wherein the turning plate 103 is provided with a pushing part 105 and a clamping hook part 106, the clamping hook part 106 corresponds to the clamping plate 104, the driver 102 is in driving connection with the turning plate 103, the driver 102 drives the turning plate 103 to rotate so as to control the clamping hook part 106 to be separated from and connected with the clamping plate 104, and the pushing part 105 rotates along with the rotation of the turning plate 103; the fixing part 2 is fixed on the shell 101 of the driving mechanism 1, and the fixing part 2 at least comprises a first slotted part 201 and a second slotted part 202, and a solid part 203 between the first slotted part 201 and the second slotted part 202; the movable contact piece 3 is sleeved on the fixing piece 2, the movable contact piece 3 comprises a button 301, a reset elastic piece 302, a rotating shaft 303, a torsion spring piece 304 and a push rod 305, the push rod 305 is fixed on the side wall of the button 301 and corresponds to the turning plate 103, the reset elastic piece 302 is arranged in the button 301, the rotating shaft 303 is arranged in the button 301, and the torsion spring piece 304 is sleeved on the rotating shaft 303; the release member 4 is connected with the button 301 through the rotating shaft 303, the release member 4 includes a connecting portion 401, a first clamping portion 402, a rod body 403 and a second clamping portion 404, the first clamping portion 402 corresponds to the first slot portion 201, the second clamping portion 404 is in driving connection with the pushing portion 105, and the second clamping portion 404 corresponds to the second slot portion 202.

The pushing portion 105 of the flap 103 is disposed outside the housing 101, and the hook portion 106 of the flap 103 is disposed in the housing.

The hook part 106 comprises a connecting body 1601 and a hook body 1062 arranged on the connecting body 1601, the hook body 1062 is matched with and movably clamped with the clamping plate 104, the driver 102 and/or the ejector rod 305 drive the connecting body 1601 to rotate, and the hook body 1062 rotates along with the rotation of the connecting body 1601 to realize the separation and connection of the hook body 1062 and the clamping plate 104;

the pushing portion 105 rotates with the rotation of the connecting body 1601, and the pushing portion 105 pushes the release member 4 to rotate.

The driver 102 is at least one of an electromagnetic coil, an electric push rod, a hydraulic rod and a pneumatic rod.

The first clamping portion 402 has a clamping surface 4021 matched with the first slot 201, and may be a plane, an inclined surface, an arc surface, or any combination thereof.

The second engaging portion 404 has a pushing surface 4041, which may be a plane, an inclined surface, an arc surface, or any combination thereof, and is engaged with the pushing portion 105.

The direction of the force of the torsion spring member 304 is clockwise.

The return elastic member 302 is at least one of a coil spring, a torsion spring, and a leaf spring.

The specific working process of the tripping mechanism of the utility model is that the initial state is that the first clamping part 402 of the tripping part 4 and the first slot part 201 of the fixing part 2 are in a tripping state, the circuit is in a disconnection state, the clamping hook part 106 of the turning plate 103 and the clamping plate 104 are in a tripping state, when the button 301 is pressed, the ejector pin 305 presses the clamping hook part 106 of the turning plate 103 to make the clamping hook part 106 and the clamping plate 104 clamped and connected, and simultaneously the tripping part 4 moves downwards along the fixing part 2, and the tripping part 2 is under the action of the clockwise force of the torsion spring 304, when the first clamping part 402 moves to the first slot part 201 of the fixing part 2, the first clamping part 402 is clamped with the first slot part 201, at the moment, after the button 301 is released, under the resilience of the fixing part 302, the first clamping part 402 of the tripping part 4 is further clamped with the first slot part 201 of the fixing part 2 firmly, therefore, the circuit is conducted, the switching-on is realized, the operation is convenient and quick, and the reliability and the stability are high; the tripping operation process is that the driver 102 acts to drive the turning plate 103 to rotate so as to enable the hook part 106 to be disconnected from the clamping plate 104, the pushing part 105 rotates along with the rotation of the turning plate 103 so as to push the second clamping part 404 of the tripping part 4, and then the tripping part 4 rotates anticlockwise so as to enable the first clamping part 402 to be disconnected from the first slot part 201 of the fixing part 2, so that a circuit is disconnected, and the circuit is disconnected from danger; the tripping mechanism is simple and reliable in structure and quick in response, sensitivity, reliability and stability of switching-on and tripping actions are obviously improved, switching-on and tripping can be repeated, the use efficiency is improved, and a thermal tripping device is not needed or a circuit protection device (such as a circuit breaker or a fuse) is not needed to be additionally arranged.

Example 9

Fig. 10 is a schematic structural diagram of a surge protector employing a trip mechanism according to embodiment 9 of the present invention;

a surge protector employing a trip mechanism comprising at least one trip mechanism as in any of the preceding embodiments 1-8.

Example 10

Fig. 11 is a block diagram illustrating a surge protector employing a trip mechanism according to embodiment 10 of the present invention;

besides the technical proposal of the embodiment 9, the method also comprises the following technical proposal:

the surge protector adopting the tripping mechanism further comprises a lightning protection element 5, a current transformer 6 and a micro control unit 7, wherein the lightning protection element 5 comprises at least one piezoresistor, the tripping mechanism is connected in series with a line 9 where the lightning protection element 5 is located, the signal detection device 6 adopts the current transformer, the signal detection device 6 is sleeved on the line 9 where the lightning protection element 5 is located, the micro control unit 7 is respectively connected with the current transformer 6 and a driver 102 of the tripping mechanism and is used for receiving a current signal sensed by the current transformer 6, and when the current magnitude and duration of the detected current signal exceed a set current threshold and a set time threshold at the same time, the driver 102 is controlled to act to drive the turning plate 103 to rotate, so that the clamping hook part 106 of the turning plate is separated from the clamping plate 104, the pushing part 105 rotates along with the rotation of the turning plate 103, and the second clamping part, further, the disengaging gear 4 rotates to disengage the first clamping part 402 from the first slot part 201 of the fixing part 2, so as to disconnect the line and disengage the line from danger; the micro control unit determines the current type according to the current size and duration, and the current type does not trip when the current type is determined to be lightning current or surge current impact, and the current type does not trip when the current type is determined to be power frequency current, short circuit current or overload current, so that the requirements of not tripping when the lightning current or surge current impact occurs and rapidly and accurately tripping when the power frequency current, short circuit current or overload current occurs are met.

The signal detection device can adopt one or more of a temperature sensor, a current transformer and a magnetic field sensor.

Example 12

Fig. 12 is a block diagram illustrating a surge protector employing a trip mechanism according to embodiment 11 of the present invention;

besides the technical scheme of the embodiment 10, the method also comprises the following technical scheme:

the surge protector adopting the tripping mechanism further comprises a communication interface 8 connected with the micro control unit 7, is used for being in communication connection with external equipment, can be connected with the external equipment such as an intelligent concentrator, a monitoring host and the like, and is used for local and/or remote monitoring and management, and the intelligent concentrator can adopt products capable of realizing data acquisition, processing, uploading and issuing.

The utility model discloses a tripping device and adopt tripping device's surge protector, can solve the problem that prior art exists, tripping device simple structure is reliable and the response is fast, show the sensitivity that improves combined floodgate and tripping operation, reliability and stability, and can repeat combined floodgate and dropout, improve the availability factor, satisfy simultaneously and not break off when lightning current or surge current impact appear, when power frequency current appears, the requirement of quick accurate dropout when short-circuit current or overcurrent, the broken line makes the circuit break away from danger, improve surge protector's reliability, security and life, ensure the safety of low pressure distribution lines, and needn't adopt thermal tripping device again or additionally increase circuit protection device again (like circuit breaker or fuse), reduce user's use cost.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. Tripping device, its characterized in that includes: the device comprises a driving mechanism (1), a fixed part (2), a movable contact part (3) and a release part (4); the fixing piece (2) is fixedly connected with the driving mechanism (1), the movable contact piece (3) is sleeved on the fixing piece (2), the driving mechanism (1) comprises a turning plate (103), the movable contact piece (3) is in transmission connection with the turning plate (103), the turning plate (103) is in transmission connection with the release piece (4), the turning plate (103) rotates under the action of the movable contact piece (3), and the turning plate (103) drives the release piece (4) to rotate;

the movable contact piece (3) comprises a button (301), a reset elastic piece (302), a rotating shaft (303) and a torsion spring piece (304), the reset elastic piece (302) is arranged in the button (301), the rotating shaft (303) is arranged in the button (301), and the torsion spring piece (304) is sleeved on the rotating shaft (303);

one end of the tripping piece (4) is hinged through the rotating shaft (303); the other end of the tripping piece (4) is movably connected with the fixing piece (2) in a contact manner to realize closing and tripping.

2. The trip mechanism according to claim 1, characterized in that the movable contact (3) further comprises a push rod (305), the flap (103) is arranged outside the button (301), and the push rod (305) is matched with the flap (103) and is in movable contact connection.

3. The trip mechanism according to claim 2, wherein the driving mechanism (1) further comprises a housing (101), a driver (102) and a clamping plate (104), the clamping plate (104) is arranged in the housing (101), the driver (102) is in driving connection with the turning plate (103), the turning plate (103) is matched with the clamping plate (104) and is movably clamped, and the driver (102) drives the turning plate (103) to rotate to realize the separation and connection of the turning plate (103) and the clamping plate (104).

4. The trip mechanism according to claim 3, characterized in that the flap (103) has a pushing part (105) and a hook part (106), the pushing part (105) and the hook part (106) are connected and integrally formed, the hook part (106) is matched with and movably clamped with the clamping plate (104), the driver (102) and/or the ejector rod (305) drives the hook part (106) to rotate, the pushing part (105) rotates along with the rotation of the hook part (106) to realize the separation and connection of the hook part (106) and the clamping plate (104), and the pushing part (105) rotates along with the rotation of the flap (103).

5. The trip mechanism according to claim 4, wherein the hook portion (106) comprises a connecting body (1601) and a hook body (1062) arranged on the connecting body (1601), the hook body (1062) is matched with and movably clamped with the clamping plate (104), the driver (102) and/or the ejector rod (305) drives the connecting body (1601) to rotate, and the hook body (1062) rotates along with the rotation of the connecting body (1601) to realize the separation and connection of the hook body (1062) and the clamping plate (104);

the pushing part (105) rotates along with the rotation of the connecting body (1601), and the pushing part (105) pushes the fastening releasing part (4) to rotate.

6. Trip mechanism according to claim 4, characterized in that the fixing element (2) is fixed to the housing (101) of the drive mechanism (1), the fixing element (2) comprising a first slotted portion (201) and a second slotted portion (202), a solid portion (203) being present between the first slotted portion (201) and the second slotted portion (202).

7. The trip mechanism according to claim 6, wherein the trip member (4) comprises a connecting portion (401), a rod body (403), a first clamping portion (402), and a second clamping portion (404), one end of the rod body (403) is the connecting portion (401), the other end of the rod body (403) is the first clamping portion (402), the second clamping portion (404) is disposed on one side of the rod body (403) facing the pushing portion (105), the first clamping portion (402) is movably connected with the first slot portion (201) in a contact manner, the second clamping portion (404) is in driving connection with the pushing portion (105), and the second clamping portion (404) corresponds to the second slot portion (202).

8. Trip mechanism according to claim 4, characterized in that the push part (105) is arranged outside the housing (101) and the hook part (106) is arranged inside the housing (101).

9. The trip mechanism according to claim 7, wherein the first catching portion (402) is provided with a catching surface for cooperating with the first grooved portion (201);

the second clamping part (404) is provided with a pushing surface matched with the pushing part (105).

10. The trip mechanism of claim 1, 6, 7, 8 or 9, wherein the direction of the torsion spring member (304) is clockwise;

the reset elastic piece (302) is at least one of a spiral spring, a torsion spring and a leaf spring.

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