CN112383025A

CN112383025A - Circuit protection device capable of being switched off according to temperature and current

Info

Publication number: CN112383025A
Application number: CN202011503957.XA
Authority: CN
Inventors: 李晓钠
Original assignee: Yiwu Shaohao E Commerce Co ltd
Current assignee: Li Hongwang
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-02-19
Anticipated expiration: 2040-12-17
Also published as: CN112383025B

Abstract

The invention discloses a circuit protection device capable of breaking circuit according to temperature and current, which comprises a working box, wherein a working cavity is arranged in the working box, a left inner wall of the working cavity is provided with a wire connecting groove which is communicated from left to right, and the left end surface of the working box is fixedly connected with a pluggable socket which is positioned on the left side of the wire connecting groove.

Description

Circuit protection device capable of being switched off according to temperature and current

Technical Field

The invention relates to the related field of overcurrent protection circuits, in particular to a circuit protection device capable of being switched off according to temperature and current.

Background

Overload protection is an overload protection device that is added to prevent the main power line from being damaged by overheating due to overload.

The overload protection of the circuit plays a vital role in the electricity utilization safety, and the overload state of the circuit is reflected by utilizing the detection of heat or a magnetic field generated by the circuit, so that the circuit is broken, and unnecessary life and property safety loss caused by fire disaster due to circuit overload is avoided.

Disclosure of Invention

The technical problem is as follows:

the overload protection of the circuit plays an important role in the safety of electricity utilization, and the overload state of the circuit is reflected by detecting the heat or the magnetic field generated by the circuit, so that the circuit is broken.

In order to solve the problems, the embodiment designs a circuit protection device capable of being disconnected according to temperature and current, the circuit protection device capable of being disconnected according to temperature and current comprises a working box, a working chamber is arranged in the working box, a wire connecting groove which is through from left to right is arranged on the inner wall on the left side of the working chamber, a pluggable seat which is positioned on the left side of the wire connecting groove is fixedly connected with the left end surface of the working box, two sockets which are provided with openings for connecting with electric wires and are arranged on the left end surface of the pluggable seat, a power supply connecting block which is positioned on the right side of the wire connecting groove is fixedly connected with the inner wall on the rear side of the working chamber, an electrode groove which is provided with an opening towards left is arranged on the left end surface of the power supply connecting block, two electrodes which are electrically connected with the, the wire is located in the work chamber, part of the right end face of the wire is fixedly connected with an electrode connecting block which extends into the electrode groove, is connected with the inner wall of the electrode groove in a sliding manner and is connected with two electrodes, a detection mechanism for detecting whether the wire is overloaded is arranged in the work chamber, the detection mechanism comprises a fixed plate which is fixedly connected with the rear inner wall of the work chamber and is positioned on the lower side of the wire, a fixed plate groove which is communicated up and down is arranged in the fixed plate, the inner wall of the fixed plate groove is internally connected with a magnetic force deflection rod which extends into the work chamber, is positioned on the inner side of the fixed plate groove, is connected with the inner wall of the right side of the fixed plate groove through a spring, the magnetic force deflection rod can deflect according to a magnetic field generated by current on the wire, the rear inner wall of the work chamber, the device is characterized in that a butt plate rod is connected in the fixed block in a sliding manner, the left end face of the butt plate rod is fixedly connected with a right end face and the left end face of the fixed block through a spring and can be abutted against the butt plate when the deflection angle of the magnetic deflection rod is larger, a first chute with a forward opening is arranged on the inner wall of the rear side of the working cavity, a fixed rod which extends into the working cavity and is positioned in the working cavity and is fixedly connected with the left end face and the right end face of the butt plate rod is connected in the sliding manner in a sliding manner, according to the change of the current on the lead, a larger magnetic field is generated when the current on the lead is overloaded, so that the magnetic deflection rod deflects to enable the fixed rod to move rightwards, a circuit breaking mechanism for cutting off a circuit when the circuit is overloaded is arranged in the working cavity, and a, and a display mechanism for displaying circuit breaking when the circuit is overloaded and broken is arranged in the working cavity.

Preferably, the detection mechanism further comprises a temperature measurement box fixedly connected with the inner wall of the rear side of the working cavity, positioned on the lower side of the lead and positioned on the right side of the fixing plate, a temperature measurement cavity with an upward opening is slidably connected in the temperature measurement box, a heat absorption block is arranged in the temperature measurement cavity, a piston plate positioned on the lower side of the heat absorption block is slidably connected in the temperature measurement cavity, an expansion liquid which is positioned between the heat absorption block and the piston plate and can expand or contract according to the temperature is arranged in the temperature measurement cavity, a temperature measurement cavity groove which is through up and down is arranged on the inner wall of the lower side of the temperature measurement cavity, a vertical section of the piston plate rod which extends into the temperature measurement cavity, is fixedly connected with the lower end face of the piston plate and extends into the working cavity is slidably connected in the temperature measurement cavity, and a detection inclined plane positioned on the upper side of the butt plate rod, the working chamber rear side inner wall fixedly connected with be located detect the inclined plane right side and be located the left first gag lever post of dead lever, sliding connection has the left end face in the first gag lever post with detect inclined plane right-hand member face sliding connection and right-hand member face with dead lever left end face fixed connection's slide bar, according to the inflation liquid is in the inflation when wire overload temperature rises makes the piston plate pole moves down, thereby makes the slide bar with the dead lever moves to the right.

Preferably, the circuit breaking mechanism comprises a second limiting rod fixedly connected with the inner wall of the lower side of the working cavity and positioned on the right side of the fixed rod, a connecting rod fixedly connected with the right end face of the fixed rod is slidably connected with the second limiting rod, a connecting rod column is fixedly connected with the front end face of the connecting rod, a swing rod shaft positioned on the upper side of the second limiting rod and positioned on the right side of the power supply connecting block is rotatably connected with the inner wall of the rear side of the working cavity, a swing rod is fixedly connected with the swing rod shaft, the swing rod is provided with two swing rod grooves which are symmetrical and run through from front to back according to the center of the swing rod shaft, the swing rod groove on the lower side is slidably connected with the connecting rod column, the right end face of the power supply connecting block is provided with a circuit breaking groove which is positioned on the right side of the electrode groove, when the circuit breaking rod is positioned at the leftmost end, the circuit breaking rod can extend into the electrode groove, a circuit breaking plate is fixedly connected to the right end face of the part, positioned in the working cavity, of the circuit breaking rod, a circuit breaking plate connecting rod is fixedly connected to the right end face of the circuit breaking plate, a connecting rod column which is in sliding connection with the swing rod groove on the upper side is arranged on the front end face of the circuit breaking plate connecting rod, and according to the right movement of the fixing rod, the connecting rod of the connecting rod moves rightwards, so that the circuit breaking plate connecting rod moves leftwards, the circuit breaking rod moves leftwards, and the electrode connecting block is separated from the.

Preferably, the restoring mechanism comprises a switch groove which is located on the inner wall of the upper side of the electrode groove and is through from top to bottom, the switch groove is internally and slidably connected with a limiting plate which extends into the electrode groove and extends into the working cavity, the switch plate is located in the electrode groove and is fixedly connected with the left end face of the inner part of the electrode groove and extends into the working cavity, the inner wall of the rear side of the working cavity is provided with a limiting plate which is connected with the inner wall of the upper side of the electrode groove through a spring, a second sliding groove which is located on the upper side of the power supply connecting block and is provided with a forward opening is arranged on the inner wall of the rear side of the working cavity, a first sliding block which extends into the working cavity is slidably connected with a first sliding block, the first sliding block is located on the lower end face of the inner part of the working cavity and is connected with the limiting plate, the third limiting rod is internally and fixedly connected with a transmission rod, the upper end surface of the transmission rod is fixedly connected with a reset block, the right end surface of the reset block is provided with a reset block groove with a rightward opening, the first sliding block is positioned in the working cavity, the partial left end surface of the first sliding block is fixedly connected with a reset rod extending into the reset block groove, the inner wall of the left side of the working cavity is provided with a left and right through button rod groove which is positioned at the upper side of the wire connecting groove and positioned at the lower side of the third limiting rod, the button rod is internally and slidably connected with a button rod, the button rod is positioned in the working cavity, the partial right end surface of the button rod is fixedly connected with a transmission inclined surface with an upper end surface and a lower end surface which are slidably connected, the button rod is positioned outside the left end surface of the working box, the right end surface of the button rod is fixedly connected with the left, sliding connection has and extends to in the third spout the work intracavity and be located the inside left end face of dividing of third spout with the second slider of spring coupling is passed through to third spout left side inner wall, the second slider is located terminal surface under the vertical section of the intracavity part left end face fixedly connected with wire up end fixed connection's the horizontal segment right-hand member face, according to the electrode connecting block with the electrode breaks away from and opens circuit, makes the limiting plate and the switch board moves down and closes the electrode cell makes first slider and the release link moves down, the rethread move to the right of button makes first slider moves up again, makes the electrode cell opens, thereby makes the electrode connecting block is in move under the effect of moving to the right of wire connecting rod move with the electrode is connected.

Preferably, the display mechanism comprises a display inclined plane fixedly connected with the upper end face of the switch board and positioned on the upper side of the third sliding groove, the inner wall of the rear side of the working cavity is fixedly connected with a fourth limiting rod positioned on the right side of the display inclined plane, the fourth limiting rod is internally and slidably connected with a display rod with a left end face and a right end face which are slidably connected, the right end face of the display rod is fixedly connected with a display rod block electrically connected with a power supply, the inner wall of the right side of the working cavity is provided with a light-emitting groove which is positioned on the right side of the display rod block and is communicated with the left and the right, the inner wall of the light-emitting groove is fixedly connected with a light-emitting connecting block extending into the working cavity, the left end face of the light-emitting connecting block is provided with a connecting block groove with a left opening, the light-emitting lamp capable of emitting light is fixedly connected with, the display rod is enabled to move to the right through the sliding connection between the display inclined plane and the display rod, so that the display rod block enters the connecting block groove to enable the light-emitting connecting block to be electrified, and the light-emitting display device is enabled to be disconnected when the lead is disconnected.

The invention has the beneficial effects that: the device reflects whether the lead is in an overload running state or not when working by detecting the magnetic field and the temperature around the lead through the detection mechanism, protects a circuit by cutting off the connection between the lead and a socket when the lead works in an overload state through the circuit breaking mechanism, indicates the circuit to be broken by emitting light when the circuit is broken through the display mechanism, and restores the connection of the circuit under the condition that the damage of an electrical element is detected through the restoration mechanism, so that the potential safety hazard of fire caused by circuit overload is prevented.

Drawings

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

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the overall structure of a circuit protection device capable of being opened according to temperature and current according to the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at "A";

FIG. 3 is an enlarged schematic view of FIG. 1 at "B";

FIG. 4 is an enlarged schematic view of FIG. 1 at "C";

FIG. 5 is an enlarged schematic view of FIG. 1 at "D";

fig. 6 is an enlarged schematic view of the structure at "E" in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a circuit protection device capable of being switched off according to temperature and current, which is mainly applied to the process of protecting a circuit, and the invention is further explained by combining the attached drawings of the invention:

the invention relates to a circuit protection device capable of being disconnected according to temperature and current, which comprises a working box 11, wherein a working cavity 12 is arranged in the working box 11, a wire connecting groove 49 which is penetrated through from left to right is arranged on the inner wall of the left side of the working cavity 12, a pluggable seat 46 which is positioned on the left side of the wire connecting groove 49 is fixedly connected to the left end surface of the working box 11, two left-opened jacks 47 which are used for being connected with electric wires are arranged on the left end surface of the pluggable seat 46, a power supply connecting block 17 which is positioned on the right side of the wire connecting groove 49 is fixedly connected to the inner wall of the rear side of the working cavity 12, an electrode groove 18 which is opened from left is arranged on the left end surface of the power supply connecting block 17, two right ends 67 which are electrically connected with a power supply are arranged on the inner wall of the right side of the electrode groove 18, a wire 48 which extends into the working cavity 12 through the wire connecting An electrode connecting block 61 connected with the inner wall of the electrode groove 18 in a sliding manner and connected with the two electrodes 67, a detecting mechanism 901 for detecting whether the lead 48 is overloaded is arranged in the working chamber 12, the detecting mechanism 901 comprises a fixing plate 52 fixedly connected with the inner wall of the rear side of the working chamber 12 and positioned on the lower side of the lead 48, a fixing plate groove 53 which is penetrated up and down is arranged in the fixing plate 52, a magnetic force deflecting rod 30 which extends into the working chamber 12 and is positioned at the inner wall of the right side of the fixing plate groove 53 is connected with the inner wall of the right side of the fixing plate groove 53 through a spring in a sliding manner, the magnetic force deflecting rod 30 can deflect according to a magnetic field generated by current on the lead 48, and a fixing block 28 which is positioned on the right side of the magnetic force deflecting rod 30 and is positioned on the lower side of the fixing plate 52 is fixedly connected with, the fixed block 28 is connected with an abutting plate rod 27 in a sliding manner, the left end face of the abutting plate rod 27 is fixedly connected with the right end face and the left end face of the fixed block 28 through a spring, and can abut against the abutting plate 29 when the deflection angle of the magnetic deflection rod 30 is larger, the inner wall of the rear side of the working cavity 12 is provided with a first chute 24 with a forward opening, the first chute 24 is connected with a fixed rod 23 which extends into the working cavity 12 and is positioned in the working cavity 12 and fixedly connected with the left end face and the right end face of the abutting plate rod 27 in a sliding manner, according to the change of the current on the lead 48, a larger magnetic field is generated when the current on the lead 48 is overloaded, so that the magnetic deflection rod 30 deflects, the fixed rod 23 moves rightwards, the working cavity 12 is internally provided with a circuit breaking mechanism 902 for cutting off the circuit when the circuit is overloaded, and the working cavity 12 is internally provided with a restoring mechanism 903 for restoring, a display mechanism 904 for displaying circuit breaking when the circuit is broken due to overload is arranged in the working cavity 12.

According to the embodiment, the detecting mechanism 901 will be described in detail below, the detecting mechanism 901 further includes a temperature measuring box 50 fixedly connected to the inner wall of the rear side of the working chamber 12, located below the lead 48 and located on the right side of the fixing plate 52, a temperature measuring chamber 51 with an upward opening is slidably connected to the temperature measuring box 50, a heat absorbing block 62 is disposed in the temperature measuring chamber 51, a piston plate 64 located below the heat absorbing block 62 is slidably connected to the temperature measuring chamber 51, an expansion liquid 63 located between the heat absorbing block 62 and the piston plate 64 and capable of expanding or contracting according to the temperature is disposed in the temperature measuring chamber 51, a temperature measuring chamber slot 65 penetrating up and down is disposed on the inner wall of the lower side of the temperature measuring chamber 51, a vertical section of a piston plate rod 66 extending into the temperature measuring chamber 51, fixedly connected to the lower end surface of the piston plate 64 and extending into the working chamber 12 is slidably connected to the temperature measuring chamber slot 65, piston plate rod 66 is located working chamber 12 partial horizontal segment right-hand member face fixedly connected with is located the detection inclined plane 26 of butt plate rod 27 upside, working chamber 12 rear side inner wall fixedly connected with is located detect the inclined plane 26 right side and be located the left first gag lever post 25 of dead lever 23, sliding connection has the left end face in first gag lever post 25 with detect inclined plane 26 right-hand member face sliding connection and right-hand member face with dead lever 23 left end face fixed connection's slide bar 22, according to inflation liquid 63 is in the inflation when wire 48 transships the temperature rise makes piston plate rod 66 move down, thereby makes slide bar 22 and dead lever 23 move to the right.

According to an embodiment, the breaking mechanism 902 is described in detail below, the breaking mechanism 902 includes a second limiting rod 21 fixedly connected to the inner wall of the lower side of the working chamber 12 and located on the right side of the fixing rod 23, a connecting rod 74 fixedly connected to the right end face of the fixing rod 23 is slidably connected to the second limiting rod 21, a connecting rod post 75 is fixedly connected to the front end face of the connecting rod 74, a swing rod shaft 20 located on the upper side of the second limiting rod 21 and located on the right side of the power connection block 17 is rotatably connected to the inner wall of the rear side of the working chamber 12, a swing rod 19 is fixedly connected to the swing rod shaft 20, two swing rod grooves 72 are formed in the swing rod 19 and symmetrically pass through in the front-and-back direction according to the center of the swing rod shaft 20, the connecting rod groove 72 on the lower side is slidably connected to the connecting rod post 75, a breaking groove 68 is formed in the right end face of, a breaking rod 69 extending into the working cavity 12 is slidably connected in the breaking groove 68, when the breaking rod 69 is located at the leftmost end, the breaking rod 69 can extend into the electrode groove 18, a breaking plate 70 is fixedly connected to the right end face of the part of the breaking rod 69 located in the working cavity 12, a breaking plate connecting rod 71 is fixedly connected to the right end face of the breaking plate 70, a connecting rod post 73 slidably connected with the swinging rod groove 72 at the upper side is arranged on the front end face of the breaking plate connecting rod 71, and according to the right movement of the fixing rod 23, the connecting rod 74 moves rightwards, so that the breaking plate connecting rod 71 moves leftwards, the breaking rod 69 moves leftwards, and the electrode connecting block 61 and the electrode 67 are disconnected and disconnected.

According to the embodiment, the following detailed description is given to the restoring mechanism 903, the restoring mechanism 903 includes a switch groove 58 which is located on the upper inner wall of the electrode groove 18 and runs through from top to bottom, a switch board 59 which extends into the electrode groove 18 and extends into the working chamber 12 is slidably connected in the switch groove 58, the switch board 59 is located on the left end face of the inside of the electrode groove 18 and extends into the working chamber 12 and is located on the electrode groove 18 and the upper inner wall of the electrode groove 18 are connected through a spring, a limiting plate 60 which is located on the upper inner wall of the electrode groove 18 and is connected with the upper inner wall of the working chamber 12 through a spring is provided on the inner wall of the rear side of the working chamber 12, a second sliding groove 34 which is located on the upper side of the power supply connecting block 17 and is open forward is provided on the inner wall of the rear side of the working chamber 12, a first sliding block 33 which extends into the working chamber 12 is located on the lower end face, working chamber 12 rear side inner wall fixedly connected with is located the left third gag lever post 41 of stay cord 35, sliding connection has transfer line 40 in the third gag lever post 41, transfer line 40 up end fixedly connected with reset block 38, reset block 38 right-hand member face is equipped with reset block groove 39 that the opening is to the right, first slider 33 is located the inside left end fixedly connected with of working chamber 12 extends to reset bar 31 in reset block groove 39, working chamber 12 left side inner wall is equipped with and is located wire spread groove 49 upside just is located the button bar groove 45 that link up about third gag lever post 41 downside, sliding connection has button bar 43 in button bar groove 45, button bar 43 is located the inside right end fixedly connected with up end of working chamber 12 with transfer line 40 lower extreme surface sliding connection's transmission inclined plane 42, button bar 43 is located the outside left end fixedly connected with right end of working chamber 11 left end and working chamber 11 The left end face passes through spring coupling's button 44, working chamber 12 rear side inner wall is equipped with and is located power connecting block 17 upside and the forward third spout 56 of opening, sliding connection has in the third spout 56 extends to in the working chamber 12 and is located the inside branch left end face of third spout 56 with the inside second slider 57 that passes through spring coupling of third spout 56 left side inner wall, second slider 57 is located the inside branch left end face fixedly connected with of working chamber 12 under the terminal surface with the horizontal segment right-hand member face of wire connecting rod 32 of wire 48 up end fixed connection, according to electrode connecting block 61 with electrode 67 breaks away from the open circuit, makes limiting plate 60 and switch panel 59 move down and close electrode groove 18, makes first slider 33 and reset rod 31 move down, the rethread the right side of button 44 moves, makes first slider 33 move up again, the electrode groove 18 is opened, so that the electrode connecting block 61 is moved to the right by the right movement of the wire connecting rod 32 to be connected with the electrode 67.

According to the embodiment, the following detailed description is provided for the display mechanism 904, the display mechanism 904 includes a display inclined plane 36 fixedly connected to the upper end surface of the switch board 59 and located on the upper side of the third sliding groove 56, the inner wall of the rear side of the working chamber 12 is fixedly connected to a fourth limiting rod 54 located on the right side of the display inclined plane 36, the fourth limiting rod 54 is slidably connected to a display rod 37 having a left end surface slidably connected to the right end surface of the display inclined plane 36, the right end surface of the display rod 37 is fixedly connected to a display rod block 55 electrically connected to a power supply, the inner wall of the right side of the working chamber 12 is provided with a light-emitting groove 15 located on the right side of the display rod block 55 and penetrating left and right, the inner wall of the light-emitting groove 15 is fixedly connected to a light-emitting connection block 14 extending into the working chamber 12, the left end surface of the light-emitting connection block 14 is provided with a connection block groove 13 having a left opening, according to the downward movement of the switch board 59 when the electrode connecting block 61 is disconnected by moving left, the display rod 37 is moved right through the sliding connection of the display inclined plane 36 and the display rod 37, so that the display rod block 55 enters the connecting block groove 13 to electrify the light-emitting connecting block 14, and the light-emitting lamp 16 is disconnected when the lead wire 48 is disconnected.

The following detailed description of the steps of using a circuit protection device capable of being opened according to temperature and current with reference to fig. 1 to 6:

initially, the electrode connecting block 61 enters the electrode tank 18 to communicate with the electrode 67, the disconnecting lever 69 is located at the rightmost end, the display lever 37 is located at the leftmost end, and the lead 48 operates normally.

In preparation, when the wire 48 is overloaded with a circuit, the magnetic field generated is increased, so that the angle of deflection of the magnetic deflection rod 30 to the right is increased, the magnetic deflection rod 30 abuts against the abutting plate 29, so that the abutting plate 29 and the abutting plate rod 27 move to the right, the overload of the circuit may also cause the temperature of the wire 48 to rise, so that the expansion liquid 63 expands, so that the piston plate 64 moves downwards, so that the piston plate rod 66 and the detection inclined surface 26 move downwards, and the sliding rod 22 moves to the right through the sliding connection of the detection inclined surface 26 and the sliding rod 22, so that the fixing rod 23 slides to the right in the first sliding groove 24.

In operation, the rightward sliding of the first sliding slot 24 causes the linking rod 74 to move rightwards, the swing rod 19 swings rightwards through the sliding connection of the linking rod 75 and the swing rod groove 72 on the lower side, the breaking plate connecting rod 71 moves leftwards through the sliding connection of the swing rod groove 72 on the upper side and the connecting rod 73, the breaking plate 70 and the breaking rod 69 move leftwards, the left movement of the breaking rod 69 moves into the electrode groove 18 to disengage and break the electrode connecting block 61 from the electrode 67, the switch plate 59 and the limit plate 60 move downwards under the action of the spring to close the electrode groove 18, the limit plate 60 pulls the first slider 33 downwards through the pull rope 35, the reset rod 31 slides in the reset block groove 39 to abut against the inner wall on the lower side of the reset block groove 39, the downward movement of the switch plate 59 causes the display inclined plane 36 to move downwards, and the power connecting block 17 and the display rod block 55 move rightwards through the sliding connection of the display inclined plane 36 and the display rod, the display rod block 55 is brought into the connection block groove 13, thereby energizing the light-emitting connection block 14, so that the light emitting lamp 16 emits light to indicate that the device is in a power-off state at this time, and after the electric components are checked to confirm that there is no damage, the button 44 is pressed, the button 44 and the button rod 43 are moved rightwards, so that the transmission inclined plane 42 is moved rightwards, the right movement of the transmission inclined plane 42 causes the transmission rod 40 and the reset block 38 to move upwards through the sliding connection of the transmission inclined plane 42 and the transmission rod 40, so that the reset rod 31 and the first sliding block 33 move upwards, so that the opening and closing plate 59 and the stopper plate 60 are moved upward by the pulling rope 35 to open the electrode slots 18, so that the lead 48 and the electrode connecting block 61 are moved to the right by the lead link 32 under the action of the spring connecting the second slider 57 and the inner wall of the third slide groove 56, and the electrode connecting block 61 is again brought into abutting communication with the electrode 67.

The invention has the beneficial effects that: the detection mechanism detects the magnetic field and temperature around the lead to reflect whether the lead is in an overload running state during working, the disconnection mechanism cuts off the connection between the lead and the socket to protect the circuit during overload working of the lead, the display mechanism emits light to indicate circuit disconnection during circuit disconnection, and the restoration mechanism restores the connection of the circuit under the condition that the damage of an electrical element is detected, so that the potential safety hazard of fire caused by circuit overload is prevented.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a can be according to circuit protection device of temperature and electric current open-circuit, includes the work box, be equipped with the working chamber in the work box, its characterized in that: the utility model discloses a wire electrode connection device, including a working chamber, a wire connecting groove, a power supply connecting block, a wire connecting groove, a working chamber left end face fixedly connected with is located the left socket of wire connecting groove, the socket left end face is equipped with two sockets left of opening that are used for with the connection of electric lines, the working chamber rear side inner wall fixedly connected with is located the power connecting block on wire connecting groove right side, power connecting block left end face is equipped with the electrode groove left of opening, electrode groove right side inner wall is equipped with two electrodes of being connected with the power electricity, but the socket right end face is fixed with the wire that extends to in the working chamber through the wire connecting groove, the wire is located the partial right end face fixedly connected with extend to in the electrode groove with electrode groove inner wall sliding connection and, the detection mechanism comprises a fixed plate fixedly connected with the inner wall at the rear side of the working cavity and positioned on the lower side of the lead, a fixed plate groove which is communicated up and down is arranged in the fixed plate, the inner wall at the rear side of the working cavity is fixedly connected with a magnetic deflection rod which extends into the working cavity and is positioned at the inner right end surface of the inner part of the fixed plate groove and the inner wall at the right side of the fixed plate groove through springs, the magnetic deflection rod can deflect according to the magnetic field generated by the current on the lead, the inner wall at the rear side of the working cavity is fixedly connected with a fixed block which is positioned at the right side of the magnetic deflection rod and is positioned on the lower side of the fixed plate, a butt plate rod is slidably connected in the fixed block, the left end surface of the butt plate rod is fixedly connected with the right end surface and the left end surface of the fixed block through springs and can be, sliding connection has and extends to in the first spout work intracavity and be located work intracavity part left end face with butt plate pole right-hand member face fixed connection's dead lever, be equipped with the mechanism that opens circuit that is used for cutting off the circuit when the circuit overloads in the work intracavity, be equipped with the mechanism that recovers that is used for recovering for the circuit that opens circuit in the work intracavity, be equipped with the display mechanism that is used for showing that the circuit opens circuit when the circuit overloads to open circuit in the work intracavity.

2. A circuit protection device that opens circuit according to temperature and current as claimed in claim 1, wherein: the detection mechanism further comprises a temperature measurement box which is fixedly connected with the inner wall of the rear side of the working cavity, is positioned at the lower side of the lead and is positioned at the right side of the fixed plate, a temperature measurement cavity with an upward opening is connected in the temperature measurement box in a sliding manner, a heat absorption block is arranged in the temperature measurement cavity, a piston plate positioned at the lower side of the heat absorption block is connected in the temperature measurement cavity in a sliding manner, expansion liquid which is positioned between the heat absorption block and the piston plate and can expand or contract according to the temperature is arranged in the temperature measurement cavity, a temperature measurement cavity groove which is communicated up and down is arranged on the inner wall of the lower side of the temperature measurement cavity, a vertical section of a piston plate rod which extends into the temperature measurement cavity, is fixedly connected with the lower end face of the piston plate and extends into the working cavity is connected in the temperature measurement cavity in a sliding manner, and, working chamber rear side inner wall fixedly connected with is located detect the inclined plane right side and be located the left first gag lever post of dead lever, first gag lever post sliding connection have the left end face with detect inclined plane right-hand member face sliding connection and right-hand member face with dead lever left end face fixed connection's slide bar.

3. A circuit protection device that can open circuit according to temperature and current as claimed in claim 2, wherein: the circuit breaking mechanism comprises a second limiting rod which is fixedly connected with the inner wall of the lower side of the working cavity and is positioned on the right side of the fixed rod, a connecting rod which is fixedly connected with the right end face of the fixed rod is connected in a sliding manner in the second limiting rod, a connecting rod column is fixedly connected with the front end face of the connecting rod, a swinging rod shaft which is positioned on the upper side of the second limiting rod and is positioned on the right side of the power supply connecting block is connected in a rotating manner in the inner wall of the rear side of the working cavity, a swinging rod is fixedly connected on the swinging rod shaft, two swinging rod grooves which are symmetrical according to the center of the swinging rod shaft and are penetrated in the front and the rear direction are arranged on the swinging rod shaft, the swinging rod groove on the lower side is connected with the connecting rod column in a sliding manner, a circuit breaking groove which, when the circuit breaking rod is located at the leftmost end, the circuit breaking rod can extend into the electrode groove, a circuit breaking plate is fixedly connected to the right end face of the part, located in the working cavity, of the circuit breaking rod, a circuit breaking plate connecting rod is fixedly connected to the right end face of the circuit breaking plate, and a connecting rod column which is connected with the upper swing rod groove in a sliding mode is arranged on the front end face of the circuit breaking plate connecting rod.

4. A circuit protection device that can open circuit according to temperature and current as claimed in claim 3, wherein: the restoring mechanism comprises a switch groove which is positioned on the inner wall of the upper side of the electrode groove and is through from top to bottom, the switch groove is internally and slidably connected with a limiting plate which extends into the electrode groove and extends into the working cavity, the switch plate is positioned in the electrode groove and fixedly connected with the left end face of the switch groove and extends into the working cavity, the electrode groove is internally and fixedly connected with the limiting plate which is connected with the inner wall of the upper side of the electrode groove through a spring, the inner wall of the rear side of the working cavity is provided with a second sliding groove which is positioned on the upper side of the power supply connecting block and is provided with a forward opening, the second sliding groove is slidably connected with a first sliding block which extends into the working cavity, the first sliding block is positioned in the working cavity and is positioned on the lower end face of the inner part of the working cavity and is connected with the limiting plate through, the third limiting rod is internally and fixedly connected with a transmission rod, the upper end surface of the transmission rod is fixedly connected with a reset block, the right end surface of the reset block is provided with a reset block groove with a rightward opening, the first sliding block is positioned in the working cavity, the partial left end surface of the first sliding block is fixedly connected with a reset rod extending into the reset block groove, the inner wall of the left side of the working cavity is provided with a left and right through button rod groove which is positioned at the upper side of the wire connecting groove and positioned at the lower side of the third limiting rod, the button rod is internally and slidably connected with a button rod, the button rod is positioned in the working cavity, the partial right end surface of the button rod is fixedly connected with a transmission inclined surface with an upper end surface and a lower end surface which are slidably connected, the button rod is positioned outside the left end surface of the working box, the right end surface of the button rod is fixedly connected with the left, sliding connection has and extends to in the third spout the work intracavity just is located the inside left end face that divides of third spout with third spout left side inner wall passes through spring coupling's second slider, the second slider is located under the vertical section of work intracavity part left end face fixedly connected with terminal surface with the horizontal segment right-hand member face of wire up end fixed connection's wire connecting rod.

5. A circuit protection device that opens circuit according to temperature and current as claimed in claim 4, wherein: display mechanism include with switch board up end fixed connection just is located the demonstration inclined plane of third spout upside, working chamber rear side inner wall fixedly connected with is located show the fourth gag lever post on inclined plane right side, sliding connection has the left end face with show inclined plane right-hand member face sliding connection's demonstration pole, show the display rod piece that pole right-hand member face fixedly connected with is connected with the power electricity, working chamber right side inner wall is equipped with and is located show the light-emitting slot that pole piece right side just controlled and link up, light-emitting slot inner wall fixedly connected with extends to luminous connecting block in the working chamber, luminous connecting block left end face is equipped with the connecting block groove of opening left, luminous connecting block is located the luminous luminescent lamp of light-emitting slot inside part right-hand member face fixedly connected with ability.