CN212257310U

CN212257310U - Push-in mounting type surge protector

Info

Publication number: CN212257310U
Application number: CN202021388478.3U
Authority: CN
Inventors: 李欣
Original assignee: XIAMEN TAIHANG TECHNOLOGY CO LTD
Current assignee: XIAMEN TAIHANG TECHNOLOGY CO LTD
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-12-29
Anticipated expiration: 2030-07-15

Abstract

The utility model belongs to the field of lightning protection equipment, and discloses a push-in mounting type surge protector, which realizes the hot plug effect in a panel with a bus bar by plugging, and comprises a SPD main body and a functional component arranged in the SPD main body, wherein one end of the SPD main body, which is inserted into the panel, is provided with a plurality of inward sunken pins to realize the electric connection with the bus bar by plugging; and one end of the SPD main body inserted into the panel is also provided with a signal slot which is used for connecting with a signal connector arranged in the panel and feeding back the state information of the functional component to the outside through the signal connector. The utility model discloses a be provided with current SPD module afterbody hot plug formula structure, through cooperating with specific panel structure to directly peg graft on the mother board, not only be convenient for change and installation, directly detect the inside operating condition of SPD under the mounted state through the signal connector that is equipped with simultaneously, judge whether it has moved inefficacy, thereby convenient to overhaul and investigation.

Description

Push-in mounting type surge protector

Technical Field

The utility model belongs to the technical field of lightning protection equipment, concretely relates to push installation formula surge protector.

Background

SPD is surge protector, also called lightning protector, and is an electronic device for providing safety protection for various electronic equipment, instruments and meters and communication lines. In a low-voltage distribution system, when spike current or voltage is suddenly generated in an electric loop or a communication line due to external interference, a surge protector can conduct shunt current, such as overvoltage caused by lightning, in a very short time, so that damage of the surge to other equipment in the loop is avoided.

At present, a miniature SPD is inserted into a PCB for welding installation, and another SPD is installed on a clamping rail in a power distribution cabinet, but the deterioration or failure damage of the SPD loses the lightning protection function, and a user can only open the cabinet and detach the SPD for measurement to find the SPD, so that the problem of insecurity exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that prior art exists, the utility model provides a push installation formula surge protector shifts to the quotation of electric appliance cabinet with SPD on, adopts the push-in jump ring to connect on female arranging at the SPD afterbody, and the detection appears degrading or extracts in SPD to improve the convenience.

The utility model discloses the technical scheme who adopts does:

a push-in mounting type surge protector achieves a hot plug effect by being plugged in a panel with a busbar and comprises an SPD main body and a functional component arranged in the SPD main body, wherein a plurality of plug connectors are arranged at one end, inserted into the panel, of the SPD main body and are electrically connected with the busbar in a plugging mode;

and one end of the SPD main body inserted into the panel is also provided with a signal slot which is used for connecting with a signal connector arranged in the panel and feeding back the state information of the functional component to the outside through the signal connector.

It is worth to be noted that, the SPD main body and the busbar are in a plug connection relationship, and the relationship not only includes a plug limit relationship, but also has an electrical connection relationship. The inserting relationship is generally an inserting end and a receiving end, and the specific manner thereof generally includes clamping, wrapping and the like. The inserting connection between the SPD main body and the panel is determined, the SPD main body is used as an inserting end, and the panel is provided with an opening for accommodating the SPD main body. However, the pin and the busbar are not limited, and those skilled in the art should understand that two ways, that the plug connector is the insertion end, the busbar is the accommodation end, and the plug connector is the accommodation end, and the busbar is the accommodation end, are all included in the protection scope of the present invention.

Furthermore, the plug connector is of an independent protruding structure, the busbar is of an invagination structure, and the plug connector is limited and electrically connected through being inserted into the busbar.

In this scheme, female arranging is for setting up in the panel and the metallic conductor structure that extends along the length direction of panel, and corresponds a plurality of openings that are equipped with on the panel, is equipped with the structure that caves in that corresponds at every opening part. The inward-concave structure can be integrally connected with the busbar structure, is a conductor made of metal or other materials, has a mechanical limiting effect, and cannot be directly separated without external force.

The other mode is that the sunken structure is made of insulating materials and mainly provides attachment points for other structures, and a conductor is arranged in the sunken structure and electrically connected with the busbar, and the plug connector is clamped through the conductor.

Furthermore, the plug connector is a plug pin which is sunken inwards, a plug reed which is connected with the functional component and used for conducting electricity is arranged in the plug pin, and the busbar is inserted into the plug pin and clamped by the plug reed to realize contact conduction and plug limit.

In the scheme, the busbar is two or more than two rows of metal strips which have certain width, are arranged in parallel and correspond to the pins.

Further, the SPD main body comprises two pins, and a PE wire reed and an L wire reed are respectively arranged in the pins;

the functional component comprises a piezoresistor, and the piezoresistor is connected with the PE line reed and the L line reed in series;

the busbar comprises a PE (polyethylene) flat cable and an L flat cable which correspond to each other, and an insulating support for fixing is arranged between the PE flat cable and the L flat cable.

the functional unit comprises a piezoresistor and an SCB module which are mutually connected in series, and is connected with a PE line reed and an L line reed in series;

Further, the SPD main body comprises three pins, and a PE wire reed, an N wire reed and an L wire reed are respectively arranged in the pins;

the functional component comprises a piezoresistor, an SCB module and an air release pipe which are mutually connected in series, the functional component is connected with a PE wire reed and an L wire reed in series, and the N wire spring is connected between the SCB module and the air release pipe;

the busbar comprises a PE (polyethylene) flat cable, an N flat cable and an L flat cable which correspond to each other, and an insulating bracket for fixing is arranged among the PE flat cable, the N flat cable and the L flat cable;

the insulating support is a columnar structure with two ends fixed on the panel and penetrating through the busbar.

Furthermore, the functional unit also comprises an automatic reclosing switch, the automatic reclosing switch comprises an action mechanism linked with the SCB module, a sensor for detecting the state of the SCB and a sensor for detecting lightning current flowing through the SPD main body;

the lightning current sensor sends an abnormal or normal recovery signal to the action mechanism to act, so that the SCB module acts to open or close;

the SCB state sensor and the lightning current sensor are both connected with the signal connector.

Furthermore, the signal slot is an inward-concave sinking groove structure, when the SPD main body is inserted into the panel and is spliced with the busbar, pins of the signal connector are inserted into the signal slot, and the outer surface of the signal connector is in contact clamping connection with the inner wall of the signal slot for limitation.

Furthermore, a port for facilitating the insertion of the SPD main body is arranged on the panel, and a limiting body for limiting the insertion direction of the SPD main body is arranged in the panel corresponding to the port;

and a pull ring which is convenient for pulling out the panel is arranged on the SPD main body.

Further, the SPD main body comprises a fixing frame, the piezoresistor and the air release pipe are arranged on one side of the fixing frame, and the SCB module and the automatic reclosing switch are arranged on the other side of the fixing frame.

The utility model has the advantages that:

the utility model discloses a be provided with current SPD module afterbody hot plug formula structure, through cooperating with specific panel structure to directly peg graft on the mother board, not only be convenient for change and installation, directly detect the inside operating condition of SPD under the mounted state through the signal connector that is equipped with simultaneously, judge whether it has moved inefficacy, thereby convenient to overhaul and investigation.

Drawings

FIG. 1 is a side view of the present invention with the faceplate inserted but not attached to the motherboard, with the faceplate seen from the side as a door-type structure;

FIG. 2 is a schematic side view of the present invention with the panel inserted but not attached to the motherboard;

fig. 3 is a top view of the present invention when the panel is inserted but not connected to the motherboard, and it can be seen that only a portion of the panel structure is shown in the figure, and only one SPD module is inserted;

fig. 4 is a schematic view of the state of the bus bar and the SPD main body after the panel is removed;

fig. 5 is a side view of the SPD body of the present invention;

fig. 6 is an axial schematic view of the SPD body of the present invention;

fig. 7 is an axial schematic view of the SPD body of the present invention showing the end insertion structure at the tail;

FIG. 8 is an internal block diagram of the SPD body of the present invention with the housing removed, showing the SCB module;

fig. 9 is a view of the structure of the other side of the SPD body with the outer casing removed, showing the varistor and thermal trip mechanism;

fig. 10 shows four functional component arrangements of the present invention, in which the part a has only SPD modules, connecting the L-line and the PE-line,

part B is provided with a combination module of SCB and SPD, and is also connected with an L line and a PE line,

part C is provided with an SCB, an SPD and a gas discharge tube at the lower end at the same time, not only are mutually connected in series in sequence and are respectively connected with an L wire and a PE wire at the two ends, but also a contact for connecting an N wire is arranged between the gas discharge tube and the piezoresistor,

the part D is that an automatic reclosing switch is arranged on the SCB module on the basis of the part C;

fig. 11 is a schematic diagram of the state of the SPD main body of the present invention when no bus bar is inserted;

fig. 12 is a schematic diagram of the state of the SPD main body connected to the busbar after being inserted into the busbar.

In the figure: the device comprises a main body of the SPD, a fixing frame 1.1, a piezoresistor 1.2, a thermal trip mechanism 1.3, an SCB module 1.4, a panel 2, an insulating support 3, a busbar 4, a PE (polyethylene) busbar 4.1, an N busbar 4.2, an L busbar 4.3, a signal connector 5, a pin 6, a limiting body 7, a pull ring 8, a plug-in reed 9, a PE wire reed 9.1, an N wire reed 9.2, an L wire reed 9.3, a handle 10 and a signal slot 11.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the embodiment discloses a push-in mounting type surge protector, which realizes the hot plug effect in a panel 2 with a busbar 4 by plugging, and comprises an SPD main body 1 and functional components arranged in the SPD main body 1, wherein a plurality of plug connectors are arranged at one end of the SPD main body 1, which is plugged into the panel 2, to realize the electric connection with the busbar 4; the SPD main body 1 is also provided with a signal slot 11 at one end inserted into the panel 2, and is used for connecting with a signal connector 5 arranged in the panel 2 and feeding back the state information of the functional component to the outside through the signal connector 5.

Wherein, the plug connector of this embodiment is independent protrusion structure, and female 4 of arranging is the structure that caves in, the plug connector is through inserting female arranging 4 in realizing spacingly and electrically connecting.

In this scheme, female 4 arranges for setting up in panel 2 and the metallic conductor structure that extends along the length direction of panel 2, and corresponds a plurality of openings that are equipped with on panel 2, is equipped with corresponding sunken structure at every opening part. The inward-concave structure can be integrally connected with the busbar 4 structure, is a conductor made of metal or other materials, has a mechanical limiting effect, and cannot be directly separated without external force. The inner sunken structure is made of insulating materials and mainly provides attachment points for other structures, and a conductor is arranged in the inner sunken structure and electrically connected with the busbar 4, and the plug connector is clamped through the conductor.

Example 2:

the embodiment discloses another push-in mounting type surge protector, which realizes the hot plug effect in a panel 2 with a busbar 4 by plugging, and comprises an SPD main body 1 and functional components arranged in the SPD main body 1, wherein a plurality of plug connectors are arranged at one end of the SPD main body 1, which is plugged into the panel 2, to realize the electric connection with the busbar 4; the SPD main body 1 is also provided with a signal slot 11 at one end inserted into the panel 2, and is used for connecting with a signal connector 5 arranged in the panel 2 and feeding back the state information of the functional component to the outside through the signal connector 5.

The plug connector of the embodiment is an inward-recessed plug pin 6, a plug reed 9 connected with a functional component and used for conducting electricity is arranged in the plug pin 6, and the busbar 4 is inserted into the plug pin 6 and clamped by the plug reed 9 to achieve contact conduction and plug limit.

In this scheme, the busbar 4 is two or more rows of metal strips, which have a certain width, are arranged in parallel, and correspond to the pins 6.

Wherein, be equipped with in the participate in 6 and be connected with functional unit and be used for electrically conductive grafting reed 9, female arranging 4 inserts in participating in 6 and is realized contact electrically conductive and grafting spacing by grafting reed 9 centre gripping. The inserting reed 9 is a structure formed by bending a single-layer metal sheet body, the opening of the inserting reed faces outwards, and the inserting reed is abutted to form a clamping section through bending parts at two sides at the position close to the opening; the thickness of the busbar 4 is smaller than the distance between the clamping sections.

The SPD main body 1 comprises two pins 6, and PE wire spring sheets 9.1 and L wire spring sheets 9.3 are respectively arranged in the pins 6; the busbar 4 comprises a PE flat cable 4.1 and an L flat cable 4.3 which correspond to each other, and an insulating support 3 for fixing is arranged between the PE flat cable 4.1 and the L flat cable 4.3.

Example 3:

the present embodiment is optimized and limited based on the structure of embodiment 2, wherein the circuit structure in this embodiment is as shown in part a of fig. 10, the SPD main body 1 includes two pins 6, and a PE wire reed 9.1 and an L wire reed 9.3 are respectively disposed in the pins 6; the functional part comprises a piezoresistor 1.2, and the piezoresistor 1.2 is connected with a PE wire reed 9.1 and an L wire reed 9.3 in series; the busbar 4 comprises a PE flat cable 4.1 and an L flat cable 4.3 which correspond to each other, and an insulating support 3 for fixing is arranged between the PE flat cable 4.1 and the L flat cable 4.3.

The functional components include a controller for feeding back status information, and the controller is connected with the signal slot 11. The signal slot 11 is an inward-sunken sink groove structure, when the SPD main body 1 is inserted into the panel 2 and is spliced with the busbar 4, pins of the signal connector 5 are inserted into the signal slot 11, and the outer surface of the signal connector 5 is in contact clamping connection with the inner wall of the signal slot 11 for limitation.

And the controller links with piezo-resistor 1.2, in case piezo-resistor 1.2 breaks down or piezo-resistor 1.2 passes through lightning current, or other actions, all can produce corresponding signal and outside sending by the controller, set up send out the early warning after arranging 4 one sides or panel 2 on the feedback equipment on receiving the signal externally at female, inform the administrator to look over in time corresponding SPD main part 1.

Example 4:

the polarity is optimized and limited based on embodiment 3, and the circuit structure in this embodiment is shown in part B of fig. 10, where the SPD main body 1 includes two pins 6, and a PE wire reed 9.1 and an L wire reed 9.3 are respectively disposed in the pins 6.

The functional components comprise a piezoresistor 1.2 and an SCB module 1.4 which are connected in series, and the functional components are connected with a PE wire reed 9.1 and an L wire reed 9.3 in series.

The busbar 4 comprises a PE flat cable 4.1 and an L flat cable 4.3 which correspond to each other, and an insulating support 3 for fixing is arranged between the PE flat cable 4.1 and the L flat cable 4.3.

The SPD main body 1 comprises a fixing frame 1.1; the functional components comprise an SCB module 1.4 arranged on one side of the fixing frame 1.1, and a handle 10 linked with the SCB module 1.4 is also arranged on the same side; the functional component also comprises a piezoresistor 1.2 arranged at the other side of the fixed frame 1.1, a thermal tripping mechanism 1.3 for receiving a thermal signal of the piezoresistor 1.2 is also arranged at the same side, and the thermal tripping mechanism 1.3 is linked with the handle 10; the SCB module 1.4, the piezoresistor 1.2 and the thermal tripping mechanism 1.3 are sequentially connected in series, one end of the SCB module 1.4 is connected with the L-shaped wire reed 9.3, and one end of the thermal tripping mechanism 1.3 is connected with the PE wire reed 9.1 and the N-shaped wire reed 9.2.

Example 5:

the embodiment discloses a push-in mounting type surge protector, as shown in fig. 1-12, which realizes a hot plug effect in a panel 2 with a busbar 4 by plugging, and comprises an SPD main body 1 and functional components arranged in the SPD main body 1, wherein a plurality of plug connectors are arranged at one end of the SPD main body 1, which is inserted into the panel 2, and are plugged with the busbar 4 to realize electric connection; the SPD main body 1 is also provided with a signal slot 11 at one end inserted into the panel 2, and is used for connecting with a signal connector 5 arranged in the panel 2 and feeding back the state information of the functional component to the outside through the signal connector 5.

The circuit structure in this embodiment is as shown in part C of fig. 10, the SPD main body 1 includes three pins 6, and the pins 6 are respectively provided with a PE wire spring 9.1, an N wire spring 9.2, and an L wire spring 9.3; the functional component comprises a piezoresistor 1.2, an SCB module 1.4 and an air release pipe which are mutually connected in series, the functional component is connected with a PE wire spring leaf 9.1 and an L wire spring leaf 9.3 in series, and the N wire spring is connected between the SCB module 1.4 and the air release pipe; the busbar 4 comprises a PE flat cable 4.1, an N flat cable 4.2 and an L flat cable 4.3 which correspond to each other, and an insulating bracket 3 for fixing is arranged among the PE flat cable 4.1, the N flat cable 4.2 and the L flat cable 4.3; the insulating support 3 is a columnar structure with two ends fixed on the panel 2 and penetrating through the busbar 4.

Example 6:

the embodiment is optimized on the basis of the embodiment 5, wherein the functional components further comprise an automatic reclosing lock, the automatic reclosing lock comprises an action mechanism linked with the SCB module 1.4, and the automatic reclosing lock further comprises a sensor for detecting the circuit abnormality in the SPD main body 1; after the sensor detects the abnormal signal, the sensor transmits the abnormal signal to the action mechanism to act, so that the SCB module 1.4 acts and is disconnected; the sensor is connected to a signal connector 5.

The signal slot 11 is an inward-sunken sink groove structure, when the SPD main body 1 is inserted into the panel 2 and is spliced with the busbar 4, pins of the signal connector 5 are inserted into the signal slot 11, and the outer surface of the signal connector 5 is in contact clamping connection with the inner wall of the signal slot 11 for limitation.

The panel 2 is provided with a port for facilitating the insertion of the SPD main body 1, and a limiting body 7 for limiting the insertion direction of the SPD main body 1 is arranged in the panel corresponding to the port; a pull ring 8 for facilitating the pulling out of the panel 2 is provided on the SPD main body 1.

The SPD main body 1 comprises a fixing frame 1.1, the piezoresistor 1.2 and the air release pipe are arranged on one side of the fixing frame 1.1, and the SCB module 1.4 and the automatic reclosing switch are arranged on the other side of the fixing frame 1.1.

The SPD main body 1 comprises an SPD module and an SCB module 1.4 which are arranged in the same closed space, the SPD module is connected with the SCB module 1.4 in series, and the SPD main body also comprises a thermal tripping mechanism 1.3 which is connected with a circuit in series and arranged at one side of the outer part of the SPD module, and the SPD module trips to form an open circuit after receiving an abnormal temperature rise signal of the SPD module; the thermal tripping mechanism 1.3 comprises a conductor which is electrically connected with the SPD module through a low-melting-point material, and a power body which continuously supplies pushing force to the conductor to move towards the tripping direction is arranged in the conductor. Because the structure for providing tripping power for the electric conductor in the prior art is generally arranged outside independently, a separate elastic body is adopted to pull in the tripping direction.

The SCB module 1.4, SPD module, thermal trip mechanism 1.3 and feedback assembly are all arranged in the same sealed space.

As shown in fig. 8-9, two of which show the specific structure of the functional components provided on both sides of the holder 1.1. A shell is arranged outside the fixed frame 1.1, an opening is formed in one side of the shell, and a bottom plate covers the opening; the fixing frame 1.1 is arranged in the shell, the SCB module 1.4 is arranged on one side of the fixing frame 1.1, and the SPD module, the thermal trip mechanism 1.3 and the feedback assembly are arranged on the other side.

The thermal tripping mechanism 1.3 adopts a linear sliding type action mode to trip. The power body comprises a main body of a strip structure, and the main body is connected with the fixed structure in a sliding mode through a connecting rod.

The SPD module is a piezoresistor 1.2, the incoming end of the piezoresistor 1.2 is connected with the SCB module 1.4, the outgoing end is provided with an outgoing angle which extends outwards to form a protruding structure, and the outgoing angle extends towards one side of the electric conductor, is inserted into the electric conductor and is connected through low-temperature tin soldering.

The whole SPD main body 1 also comprises a feedback assembly which is linked with the power body; when the conductor is connected with the SPD module, the feedback assembly has a motion trend; when the conductor is separated from the SPD module, the feedback assembly acts along with the power body and reflects the on-off state of the conductor and the SPD module through the position change of a feedback mark arranged on the feedback assembly.

The SCB module 1.4 is provided with an output end and an input end, the input end of the SCB module 1.4 is connected with an L line of the busbar 4, and the output end is connected with a piezoresistor 1.2 serving as an SPD module.

As shown in fig. 9, the housing of the SPD main body 1 is a cuboid structure, which mainly includes a housing and a fixing frame 1.1, and an opening at one side of the housing facilitates insertion of the fixing frame 1.1. And the bottom of the fixed frame 1.1 is provided with a bottom plate for covering and sealing the opening of the shell. The inner space of the plug box is divided into two chambers by a fixing frame 1.1, wherein one chamber is provided with an SCB module 1.4, and the other side is provided with an SPD module.

The SCB module 1.4 of one side includes gas discharge tube (this structure has the same structure and principle with the gas discharge tube that the outside was equipped with, but because the position of setting up is inconsistent with the use, then adopts different scientific and technological terms to refer to), electromagnetism release, switch module, handle 10 and control circuit board to constitute, and is equipped with the cylindrical installation position that is used for installing the gas discharge tube on the mount 1.1 inner wall of this side and is used for installing the rectangle installation position of electromagnetism release. The gas release pipe is of a cylindrical structure, and metal electrode discs are arranged on two circular side faces of the gas release pipe. In the figure, the metal electrode disk on one side is arranged inwards, the metal electrode disk on the inner side is electrically connected with the metal pin of the access end, and the metal electrode disk on the inner side is connected with the electromagnetic coil of the electromagnetic release through a lead.

And the metal electrode disc outside the gas release pipe is also connected with the other end of the electromagnetic coil through a lead, so that the gas release pipe and the electromagnetic coil are connected in parallel. And a static contact is also arranged on the metal electrode disc on the outer side and is connected with the switch component in a closed state.

The switch component comprises a driving rod, a pushing rod and a connecting rod, wherein the driving rod is provided with a strip-shaped through hole, and a rotating shaft penetrating into the strip-shaped through hole is arranged on the inner wall of the fixing frame 1.1. The driving rod can rotate around the rotating shaft, and the driving rod can slide along the extending direction of the strip-shaped through hole by taking the rotating shaft as a fixed point, so that the effects of position adjustment, locking state adjustment and separation from locking state change are achieved. Because the switch assembly is in a locking state and a locking state when in action, when in contact connection with the static contact, the limit is formed by the locking of the components, and the stable connection state can be kept without the influence of external force. And once the locking state is damaged by external force, the locking state can be pulled to rotate to one side by a rebound structure arranged in the locking state.

And the upper end of the driving rod is connected with the connecting rod in a clamping manner, the other end of the connecting rod is connected with the handle 10, the action of the driving rod is controlled by rotating the handle 10, and meanwhile, the electromagnetic release acts when continuous power frequency current appears in an access circuit and enables the internal movable armature to move outwards and push the push rod to rotate, and the driving rod is pushed by the push rod to move towards the disconnection direction.

And one end of the driving rod far away from the upper connecting rod is provided with a movable contact which is of a metal sheet structure. The side fixing frame 1.1 is provided with a plurality of through holes, wherein one side close to the active rod is provided with a through hole for the access end of the SPD module to pass through, and at the moment, the movable contact is connected with the access end of the SPD module through a soft metal conductor to form series connection.

And the surface of the piezoresistor 1.2 with larger area at both sides is separately provided with a metal ring for connecting an external circuit. The inner metal ring is provided with an access end which passes through the fixed frame 1.1 and is connected with the movable contact, and the outer metal ring is provided with an access end which passes through the thin-wall structure of the mounting seat. Still be equipped with heat tripping device 1.3 and feedback assembly on the mount 1.1 of this side, the feedback assembly is column rotatable structure, and inside is equipped with the torsional spring that is used for providing the resilience force, and it sets up at the top and is close to the window position that is equipped with on the casing.

The thermal tripping mechanism 1.3 comprises a conductive body and an action body, wherein one end of the action body is hinged with the fixed frame 1.1, and the other end of the action body is connected with the feedback assembly through a belt-shaped connecting piece. The conductor is fixedly connected with the output end of the metal ring through low-temperature soldering. Once the piezoresistor 1.2 generates heat abnormally, so that the low-temperature tin soldering part is melted, the action body moves upwards under the thrust of the internal spring, the electric conductor is pushed to be separated from the piezoresistor 1.2, meanwhile, the tension limiting the feedback assembly is lost, the feedback assembly rotates, the color change of the feedback assembly can be seen in an external window, and therefore the fact that the internal thermal tripping mechanism 1.3 is actuated is known, and the replacement is needed in time.

And the bottom of the thermal tripping mechanism 1.3 is connected with the metal pin at the output end through a soft conductor, so that the whole equipment forms a complete loop. Different from the existing switch assembly, the space occupancy rate can be reduced as far as possible by simplifying the components on the premise of keeping the stable tripping function, the operation stability is improved by reducing the number of the components, and the manufacturing cost is reduced. The driving rod is of a rod piece structure with a certain length, the middle of the driving rod is provided with a strip-shaped through hole, a rotating shaft of the fixing frame 1.1 can penetrate through the through hole to achieve a rotating effect, a position changing hole is further formed in the middle of the driving rod, and a first tension spring is connected in the position changing hole and used for providing tripping restoring force.

The present invention is not limited to the above-mentioned alternative embodiments, and various other products can be obtained by anyone under the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims

1. The utility model provides a push-in installation formula surge protector, realizes the hot plug effect in panel (2) that have female arranging (4) through pegging graft, its characterized in that: the SPD comprises an SPD main body (1) and functional components arranged in the SPD main body (1), wherein a plurality of plug connectors are arranged at one end, inserted into a panel (2), of the SPD main body (1) and are connected with a busbar (4) in an inserting manner to realize electric connection;

one end of the SPD main body (1) inserted into the panel (2) is also provided with a signal slot (11) which is used for being connected with a signal connector (5) arranged in the panel (2) and feeding back the state information of the functional component to the outside through the signal connector (5).

2. A push-fit surge protector according to claim 1, wherein: the connector clip is of an independent convex structure, the busbar (4) is of an invagination structure, and the connector clip realizes limiting and electric connection by being inserted into the busbar (4).

3. A push-fit surge protector according to claim 1, wherein: the plug connector is an inward-sunken plug pin (6), a plug-in reed (9) connected with the functional component and used for conducting electricity is arranged in the plug pin (6), and the busbar (4) is inserted into the plug pin (6) and clamped by the plug-in reed (9) to realize contact conduction and plug-in limit.

4. A push-fit surge protector according to any of claims 1-3, wherein: the SPD main body (1) comprises two pins (6), and a PE wire reed (9.1) and an L wire reed (9.3) are respectively arranged in the pins (6);

the functional component comprises a piezoresistor (1.2), and the piezoresistor (1.2) is connected with a PE line reed (9.1) and an L line reed (9.3) in series;

the bus bar (4) comprises a corresponding PE flat cable (4.1) and an L flat cable (4.3), and an insulating support (3) for fixing is arranged between the PE flat cable (4.1) and the L flat cable (4.3).

5. A push-fit surge protector according to any of claims 1-3, wherein: the SPD main body (1) comprises two pins (6), and a PE wire reed (9.1) and an L wire reed (9.3) are respectively arranged in the pins (6);

the functional unit comprises a piezoresistor (1.2) and an SCB module (1.4) which are connected in series, and is connected with a PE line reed (9.1) and an L line reed (9.3) in series;

6. A push-fit surge protector according to any of claims 1-3, wherein: the SPD main body (1) comprises three pins (6), and a PE (polyethylene) line reed (9.1), an N line reed (9.2) and an L line reed (9.3) are arranged in each pin (6);

the functional component comprises a piezoresistor (1.2), an SCB module (1.4) and an air discharge pipe which are mutually connected in series, the functional component is connected with a PE wire reed (9.1) and an L wire reed (9.3) in series, and the N wire spring (9.2) is connected between the SCB module (1.4) and the air discharge pipe;

the busbar (4) comprises a PE (polyethylene) flat cable (4.1), an N flat cable (4.2) and an L flat cable (4.3) which correspond to each other, and an insulating support (3) for fixing is arranged among the PE flat cable (4.1), the N flat cable (4.2) and the L flat cable (4.3);

the insulating support (3) is a columnar structure with two ends fixed on the panel (2) and penetrating through the busbar (4).

7. A push-fit surge protector according to claim 6, wherein: the functional unit also comprises an automatic reclosing switch, the automatic reclosing switch comprises an action mechanism linked with the SCB module (1.4), and also comprises a sensor for detecting the state of the SCB and a lightning current sensor for detecting the lightning current flowing through the SPD main body (1);

the lightning current sensor sends an abnormal or normal recovery signal to the action mechanism to act, so that the SCB module (1.4) acts to open or close;

the SCB state sensor and the lightning current sensor are both connected with a signal connector (5).

8. A push-fit surge protector according to claim 6, wherein: the signal slot (11) is an inward sunken sink groove structure, when the SPD main body (1) is inserted into the panel (2) and is spliced with the busbar (4), pins of the signal connector (5) are inserted into the signal slot (11), and the outer surface of the signal connector (5) is in contact clamping connection with the inner wall of the signal slot (11) for limitation.

9. A push-fit surge protector according to any of claims 1-3, wherein: the panel (2) is provided with a port for facilitating the insertion of the SPD main body (1), and a limiting body (7) for limiting the insertion direction of the SPD main body (1) is arranged in the panel corresponding to the port;

and a pull ring (8) which is convenient for pulling out the panel (2) is arranged on the SPD main body (1).

10. A push-fit surge protector according to claim 6, wherein: SPD main part (1) is including mount (1.1), piezo-resistor (1.2) and gas release pipe set up in mount (1.1) one side, SCB module (1.4) and automatic reclosing lock set up the opposite side in mount (1.1).