CN204668272U - With the gas discharge tube of Thermal protection - Google Patents
With the gas discharge tube of Thermal protection Download PDFInfo
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- CN204668272U CN204668272U CN201520144684.2U CN201520144684U CN204668272U CN 204668272 U CN204668272 U CN 204668272U CN 201520144684 U CN201520144684 U CN 201520144684U CN 204668272 U CN204668272 U CN 204668272U
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Abstract
The utility model provides the gas discharge tube with Thermal protection; comprise gas discharge tube body; described gas discharge tube body comprises a shell and is arranged on the first electrode and second electrode at shell two ends; also comprise a Thermal Cutoffs or a Pyromagnetic release, described Thermal Cutoffs or Pyromagnetic release and the second Electrode connection.The utility model is arranged in circuit, and when gas discharge tube persistence drag arc, its high temperature produced makes Thermal Cutoffs or Pyromagnetic release disconnect, thus gas discharge tube and circuit are disconnected, and avoids high temperature to cause other components and parts to catch fire, protective circuit.
Description
Technical field
The utility model relates to gas discharge tube, particularly with the gas discharge tube of Thermal protection.
Background technology
Gas discharge tube uses usually used as a kind of overvoltage protecting device.Gas discharge tube is the short circuit type protection device of a kind of pottery or glass packaging, interior filling with inert gas; Its basic operation principle is gas discharge; when the voltage at its electrode two ends exceedes the puncture voltage of gas; gap discharge will be caused; " zero resistance " state is converted to rapidly by high resistance state; thus limit the voltage of interpolar, other devices in parallel with gas discharge tube are protected.Due to the existence of this gas discharge characteristic of gas discharge tube; when it is applied in separately the protection of power distribution system equipment; afterflow is very easily caused to cause short circuit accident to occur; therefore gas discharge tube is mainly used in the protection of communication line, reason is that the operating voltage of communication system and electric current can not produce afterflow by guiding discharge pipe.
But gas discharge tube itself does not have leakage current, apply in a power distribution system, effectively can improve the life-span of piezo-resistance with piezo-resistance after connecting, piezo-resistance can avoid gas discharge tube to produce afterflow.Therefore, the mode of piezo-resistance series connection gas discharge tube is widely applied in the equipment of high reliability request, such as communication apparatus, railway signals equipment.
But, when there is temporary overvoltage in distribution system or pressure responsive resistor failure time, when the voltage magnitude of system exceedes the puncture voltage of gas discharge tube, lasting arc discharge can be produced between gas discharge tube two electrode, produce high temperature instantaneously causes metal electrode to melt simultaneously, be easy to like this cause the components and parts of surrounding to catch fire, thus make whole circuit there is serious potential safety hazard.
Utility model content
The utility model object be shortcoming in order to overcome prior art with not enough, provide a kind of gas discharge tube with Thermal protection, when gas discharge tube persistence drag arc, gas discharge tube energy breaking circuit, avoids high temperature to cause and catches fire.
Another object of the utility model is to provide a kind of gas discharge tube with Thermal protection.
To achieve these goals, the utility model is by the following technical solutions:
A kind of gas discharge tube with Thermal protection; comprise gas discharge tube body; described gas discharge tube body comprises a shell and is arranged on the first electrode and second electrode at shell two ends; also comprise a Thermal Cutoffs; described Thermal Cutoffs comprises third electrode and the 4th electrode, described third electrode and the second Electrode connection.
As preferably, described Thermal Cutoffs comprises the insulation crust that a fusible alloy and has the open at both ends of cavity; One end of described fusible alloy is third electrode, and the other end and is drawn wire and connected; Described open at both ends comprises first uncovered and second uncovered; Described cavity is located at by described fusible alloy, and described extraction wire uncoveredly extends to the external world from first and as the 4th electrode, is filled with disconnected agent of fluxing in described cavity; First of described insulation crust is uncoveredly sealed by joint filling material, and described insulation crust is arranged on the outer casing end residing for described second electrode by second uncovered residing one end.
As preferably, comprise several gas discharge tube bodies, described gas discharge tube body is connected with described Thermal Cutoffs.
As preferably, described second electrode extends an electrode leads to client.
As preferably, described electrode leads to client is perpendicular to the axis wearing the first electrode and the second electrode; Described Thermal Cutoffs comprises the insulation crust that a fusible alloy and has the open at both ends of cavity; One end of described fusible alloy is third electrode, and the other end and is drawn wire and connected; Described open at both ends comprises first uncovered and second uncovered; Described cavity is located at by described fusible alloy, and described extraction wire uncoveredly extends to the external world and as the 4th electrode from first; First of described insulation crust is uncoveredly sealed by joint filling material, and described insulation crust is arranged on described electrode leads to client by second uncovered residing one end; Described third electrode is connected with electrode leads to client, and described insulation crust and described gas discharge tube body are in the same side of described electrode leads to client; Described first electrode and the 4th electrode are in described the same side with the gas discharge tube of Thermal protection.
As preferably, described Thermal Cutoffs comprises the insulation crust that one " heat-sensitive alloy " and has the open at both ends of cavity; The one end of described " heat-sensitive alloy " is third electrode, and the other end and is drawn wire and connected; Described open at both ends comprises first uncovered and second uncovered; Described " heat-sensitive alloy " is located at described cavity, and described extraction wire uncoveredly extends to the external world and as the 4th electrode from first; First of described insulation crust is uncoveredly sealed by joint filling material, and described insulation crust is arranged on the outer casing end residing for described second electrode by second uncovered residing one end; Described " heat-sensitive alloy " is marmem.
As preferably, described Thermal Cutoffs is a fusible alloy, and the two ends of described fusible alloy are respectively as third electrode and the 4th electrode; The described gas discharge tube with Thermal protection also comprises the insulation crust that has inner chamber; Described inner chamber comprises the first chamber and the second chamber, and described first chamber is U-shaped chamber, and described fusible alloy is U-shaped fusible alloy, and described U-shaped fusible alloy is located in described U-shaped chamber; Described gas discharge tube body is arranged on described second chamber; Described first electrode and described 4th electrode are respectively equipped with electrode pin, and it is outer and be in the same side of insulation crust that two electrode pins extend to described insulation crust.
As preferably, described Thermal Cutoffs is a fusible alloy, and the two ends of described fusible alloy are respectively as third electrode and the 4th electrode; The described gas discharge tube with Thermal protection also comprises the insulation crust that has inner chamber; Be provided with the U-shaped containment vessel of the hollow of open at both ends in described inner chamber, described fusible alloy is U-shaped fusible alloy, and described U-shaped fusible alloy is located in described U-shaped containment vessel and two ends extend to outside U-shaped containment vessel; Described gas discharge tube body is arranged on described inner chamber and is placed in " U " type enclosing region of described U-shaped containment vessel; Described first electrode and described 4th electrode are respectively equipped with electrode pin, and it is outer and be in the same side of insulation crust that two electrode pins extend to described insulation crust.
As preferably, described second electrode and third electrode connect a bending pin respectively, the two bending mutual spot-welded of pin or high temperature brazing welding; Described first electrode and the 4th electrode are in described the same side with the gas discharge tube of Thermal protection.
As preferably, also comprise the insulation crust that has inner chamber; Gas discharge tube body and Thermal Cutoffs are located in described inner chamber; Described first electrode and described 4th electrode are respectively equipped with electrode pin, and it is outer and be in the same side of insulation crust that two electrode pins extend to described insulation crust.
As preferably, described Thermal Cutoffs is alloy-type temperature fuse or organic type Thermal Cutoffs.
As preferably, the metal shell that described Thermal Cutoffs comprises fusible alloy block, an electrode lead-out pins and has cavity;
Described cavity has one uncovered, and be the first outer end with described uncovered relative one end, described first outer end is provided with perforate;
Outer casing end residing for described second electrode is an installation recess, described metal shell inserts installation recess by opening end, clamps for making metal shell and installing the fusible alloy block that recess interfixes between the outer wall of described metal shell and the inwall installing recess; A back-moving spring is clamped between the madial wall of described installation recess and described first outer end;
Described electrode lead-out pins inserts described perforate, clamps described fusible alloy block between described electrode lead-out pins and perforate; Described metal shell is as third electrode, and described electrode lead-out pins is as the 4th electrode.
As preferably, also comprise the fuse shell of a hollow, described Thermal Cutoffs is in described fuse shell, and described fuse shell is arranged on described gas discharge tube body; Described electrode lead-out pins extends to outside described fuse shell.
A kind of gas discharge tube with Thermal protection; comprise gas discharge tube body; described gas discharge tube body comprises a shell and is arranged on the first electrode and second electrode at shell two ends; also comprise a Pyromagnetic release; described Pyromagnetic release comprises a bimetal leaf, described bimetal leaf and described second Electrode connection.
The utility model has following beneficial effect:
The utility model is arranged in circuit, and when gas discharge tube persistence drag arc, its high temperature produced makes Thermal Cutoffs or Pyromagnetic release disconnect, thus gas discharge tube and circuit are disconnected, and avoids high temperature to cause other components and parts to catch fire, protective circuit.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is the structural representation of embodiment 3;
Fig. 4 is the structural representation of embodiment 6;
Fig. 5 is the structural representation of embodiment 7;
Fig. 6 is the structural representation of embodiment 8;
Fig. 7 is the structural representation of embodiment 9;
Fig. 8 is the structural representation of embodiment 10;
Fig. 9 is the structural representation of embodiment 12.
In figure:
1-gas discharge tube body; 11-shell; 12-the first electrode; 121-electrode leads to client; 13-the second electrode; 2-Thermal Cutoffs; 21-third electrode; 22-the four electrode; 23-draw wire; 3-insulation crust; 31-the first chamber; 32-the second chamber; 4-electrode pin; 5-fusible alloy; 6-disconnected agent of fluxing; 7-joint filling material; 8-U-shaped containment vessel; 9-bending pin; 10-back-moving spring; 101-electrode lead-out pins; 102-metal shell; 103-fusible alloy block; 104-fuse shell.
Embodiment
Now the utility model is described in further detail with specific embodiment by reference to the accompanying drawings.
The first structure of a kind of gas discharge tube with Thermal protection described in the utility model is:
Comprise gas discharge tube body 1 and a Thermal Cutoffs 2, gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11.Thermal Cutoffs 2 comprises third electrode 21 and the 4th electrode 22, and third electrode 21 is connected with the second electrode 13.
Embodiment 1
Consult shown in Fig. 1, the gas discharge tube with Thermal protection comprises gas discharge tube body 1 and a Thermal Cutoffs 2; Gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11; Thermal Cutoffs 2 comprises the insulation crust 3 that a fusible alloy 5 and has the open at both ends of cavity, and one end of fusible alloy 5 is third electrode 21, and the other end and is drawn wire 23 and connected, and draws wire 23 as the 4th electrode 22.Cavity is located at by fusible alloy 5, is filled with disconnected agent 6 of fluxing in cavity, and first of insulation crust 3 is uncoveredly sealed by joint filling material 7; Draw wire 23 and uncoveredly extend to the external world from first, drawing wire 23 is tinned wird or the similar material material such as nickel plated copper wire or silver-coated copper wire wire; Third electrode 21 is welded on the second electrode 13, and insulation crust 3 is arranged on shell 11 end residing for the second electrode 13 by second uncovered residing one end.Insulation crust 3 can be ceramic package.It is parallel with drawing wire 23 and be in the two opposite sides of described gas discharge tube body 1 respectively that first electrode 12 is provided with the first electrode pin 4, first electrode pin 4.
Embodiment 2
Embodiment 2 is except following structure, and other structure is identical with embodiment 1: the gas discharge tube with Thermal protection comprises several gas discharge tube bodies 1, and gas discharge tube body 1 is connected with Thermal Cutoffs 2.
Gas discharge tube body 1 is connected with Thermal Cutoffs 2, specifically refers to following situation:
The first: consult shown in Fig. 2, second electrode 13 of first segment gas discharge tube body 1 is connected with the first electrode 12 of second section gas discharge tube body 1, second electrode 13 of second section gas discharge tube body 1 is connected with the first electrode 12 of the 3rd throttle body discharge tube main body 1, so analogize a to the last throttle body discharge tube main body 1, and final section gas discharge tube body 1 is connected with Thermal Cutoffs 2.
The second: all gas discharge tube bodies 1 are connected; Thermal Cutoffs 2 is between certain two throttle body discharge tube main body 1, second Electrode connection, the 4th electrode of Thermal Cutoffs 2 and first Electrode connection of another throttle body discharge tube main body 1 of the third electrode of Thermal Cutoffs 2 and a wherein throttle body discharge tube main body 1.
Embodiment 3
Consult shown in Fig. 3, embodiment 3 is except following structure, and other structure is identical with embodiment 1: the second electrode 13 extends an electrode leads to client 121.
Embodiment 4
Consult shown in Fig. 1, the gas discharge tube with Thermal protection comprises gas discharge tube body 1 and a Thermal Cutoffs 2; Gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11; Thermal Cutoffs 2 comprises the insulation crust 3 that a fusible alloy 5 and has the open at both ends of cavity, and one end of fusible alloy 5 is third electrode 21, and the other end and is drawn wire 23 and connected, and draws wire 23 as the 4th electrode 22.Cavity is located at by fusible alloy 5, and first of insulation crust 3 is uncoveredly sealed by joint filling material 7; Draw wire 23 and uncoveredly extend to the external world from first, drawing wire 23 is tinned wird or the similar material material such as nickel plated copper wire or silver-coated copper wire wire; Third electrode 21 is welded on the second electrode 13, and insulation crust 3 is arranged on shell 11 end residing for the second electrode 13 by second uncovered residing one end.Insulation crust 3 can be ceramic package.It is parallel with drawing wire 23 and be in the two opposite sides of described gas discharge tube body 1 respectively that first electrode 12 is provided with the first electrode pin 4, first electrode pin 4.Fusible alloy 5 is marmem.
Embodiment 5
Gas discharge tube with Thermal protection comprises gas discharge tube body 1 and a Thermal Cutoffs 2, and Thermal Cutoffs 2 is alloy-type temperature fuse or organic type Thermal Cutoffs.Gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11.Thermal Cutoffs 21 comprises third electrode 21 and the 4th electrode 22, and third electrode 21 is connected with the second electrode 13.First electrode 12 and the 4th electrode 22 are all provided with electrode pin 4, and two electrode pins 4 are parallel and be in the two opposite sides of gas discharge tube body 1 respectively.
Embodiment 6
Consult shown in Fig. 4, gas discharge tube with Thermal protection comprises gas discharge tube body 1 and a Thermal Cutoffs 2, gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11; Second electrode 13 extends an electrode leads to client 121, and electrode leads to client 121 is perpendicular to the axis wearing the first electrode 12 and the second electrode 13.Thermal Cutoffs 2 comprises the insulation crust 3 that a fusible alloy 5 and has the open at both ends of cavity, and one end of fusible alloy 5 is third electrode 21, and the other end and is drawn wire 23 and connected, and draws wire 23 as the 4th electrode 22.Cavity is located at by fusible alloy 5, can be packed into disconnected agent 6 of fluxing in cavity, and first of insulation crust 3 is uncoveredly sealed by joint filling material 7; Draw wire 23 and uncoveredly extend to the external world from first, drawing wire 23 is tinned wird or the similar material material such as nickel plated copper wire or silver-coated copper wire wire; Insulation crust 3 is arranged on electrode leads to client 121 by second uncovered residing one end, and third electrode 21 is welded on electrode leads to client 121.Insulation crust 3 and gas discharge tube body 1 are in the same side of electrode leads to client 121; First electrode 12 and the 4th electrode 22 are in the same side of the gas discharge tube with Thermal protection.Insulation crust 3 can be ceramic package.
Embodiment 7
Consult shown in Fig. 5, the gas discharge tube with Thermal protection comprises insulation crust 3 and the Thermal Cutoffs 2 that a gas discharge tube body 1, has inner chamber; Gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11; Thermal Cutoffs 2 is a fusible alloy 5, and the two ends of fusible alloy 5 are respectively as third electrode 21 and the 4th electrode 22.Inner chamber comprises the first chamber 31 and the second chamber 32, first chamber 31 is U-shaped chamber, and fusible alloy 5 is U-shaped fusible alloy, and U-shaped fusible alloy is located in U-shaped chamber; Gas discharge tube body 1 is arranged on the second chamber 32.Third electrode 21 is connected with the second electrode 13 by connecting wire; First electrode 12 and the 4th electrode 22 are respectively equipped with electrode pin 4, and it is outer and be in the same side of insulation crust 3 that two electrode pins 4 extend to insulation crust 3.Insulation crust 3 can be ceramic package.The electrode pin 4 of the first electrode 12 is tinned wird or the similar material material such as nickel plated copper wire or silver-coated copper wire wire.
Embodiment 8
Consult shown in Fig. 6, the gas discharge tube with Thermal protection comprises insulation crust 3 and the Thermal Cutoffs 2 that a gas discharge tube body 1, has inner chamber; Gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11; Thermal Cutoffs 2 is a fusible alloy 5, and the two ends of fusible alloy 5 are respectively as third electrode 21 and the 4th electrode 22.Be provided with the U-shaped containment vessel 8 of the hollow of open at both ends in inner chamber, fusible alloy 5 is U-shaped fusible alloy, and U-shaped fusible alloy is located in U-shaped containment vessel 8 and two ends and is extended to outside U-shaped containment vessel 8; Gas discharge tube body 1 is arranged on inner chamber and is placed in " U " type enclosing region of U-shaped containment vessel 8.Third electrode 21 is connected with the second electrode 13 by connecting wire, and the first electrode 12 and the 4th electrode 22 are respectively equipped with electrode pin 4, and two electrode pins 4 extend to insulation crust 3 and be in the same side of insulation crust 3 outward.Insulation crust 3 can be ceramic package.The electrode pin 4 of the first electrode 12 is tinned wird or the similar material material such as nickel plated copper wire or silver-coated copper wire wire.
Embodiment 9
Consult shown in Fig. 7, gas discharge tube with Thermal protection comprises gas discharge tube body 1 and a Thermal Cutoffs 2, gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11; Thermal Cutoffs 2 comprises third electrode 21 and the 4th electrode 22.Second electrode 13 and third electrode 21 connect the bending pin 9 of a bending pin 9, two respectively and are welded to each other, described bond pattern be spot welding or high temperature brazing etc. other do not affect the bond pattern of Thermal Cutoffs 2 performance; First electrode 12 and the 4th electrode 22 are in the same side of the gas discharge tube with Thermal protection.
Embodiment 10
Consult shown in Fig. 8, embodiment 10 is except following structure, and other structure is identical with embodiment 9: also comprise the insulation crust 3 that has inner chamber; Insulation crust 3 can be ceramic package.Gas discharge tube body 1 and Thermal Cutoffs 2 are located in inner chamber, and the first electrode 12 and the 4th electrode 22 are respectively equipped with electrode pin 4, and it is outer and be in the same side of insulation crust 3 that two electrode pins 4 extend to insulation crust 3, and inner chamber can be packed into arc quenching material.
Embodiment 11
Consult shown in Fig. 7, gas discharge tube with Thermal protection comprises gas discharge tube body 1 and an organic type Thermal Cutoffs, gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11; Organic type Thermal Cutoffs comprises third electrode 21 and the 4th electrode 22.Second electrode 13 and third electrode 21 connect the bending pin 9 of a bending pin 9, two respectively and are welded to each other, described bond pattern be spot welding or high temperature brazing etc. other do not affect the bond pattern of Thermal Cutoffs 2 performance; First electrode 12 and the 4th electrode 22 are in the same side of the gas discharge tube body 1 with Thermal protection.Organic type Thermal Cutoffs can be replaced alloy-type temperature fuse, and alloy-type temperature fuse comprises third electrode 21 and the 4th electrode 22, and its connected mode is the same with organic type Thermal Cutoffs.
Embodiment 12
Consult shown in Fig. 9, the gas discharge tube with Thermal protection comprises the fuse shell 104 of gas discharge tube body 1, Thermal Cutoffs 2 and a hollow.Gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11.
Thermal Cutoffs 2 comprises the metal shell 102 that fusible alloy block 103, electrode lead-out pins 101 and has cavity.Cavity has one uncovered, and be the first outer end with uncovered relative one end, the first outer end is provided with perforate; Outer casing end residing for second electrode is an installation recess, metal shell 102 inserts installation recess by opening end, clamps for making metal shell 102 and installing the fusible alloy block 103 that recess interfixes between the outer wall of metal shell 102 and the inwall installing recess.The edge of the perforate of the first outer end extends internally an insulated spring reference column, and a back-moving spring 10 is set in insulated spring reference column, and back-moving spring 10 is clamped to be installed between recess and the madial wall of the first outer end; Electrode lead-out pins 101 inserts perforate, clamps fusible alloy block 103 between electrode lead-out pins 101 and perforate.Thermal Cutoffs 2 is in fuse shell 104, and fuse shell 104 is arranged on gas discharge tube body 1; Electrode lead-out pins 101 extends to outside described fuse shell 104.
Metal shell 102 connects with the second electrode and as third electrode, electrode lead-out pins 101 is as the 4th electrode.It is parallel with electrode lead-out pins 101 and be in the two opposite sides of gas discharge tube body 1 respectively that first electrode 12 is provided with the first electrode pin 4, first electrode pin 4.
Embodiment 13
A kind of gas discharge tube with Thermal protection described in the utility model; comprise some gas discharge tube bodies 1 and a Thermal Cutoffs 2; gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11.Thermal Cutoffs 2 comprises third electrode 21 and the 4th electrode 22.Gas discharge tube body 1 is connected with Thermal Cutoffs 2.
The second structure of a kind of gas discharge tube with Thermal protection described in the utility model is: a kind of gas discharge tube with Thermal protection comprises gas discharge tube body 1 and a Pyromagnetic release; Gas discharge tube body 1 comprises a shell 11 be made by pottery or glass and the first electrode 12 and the second electrode 13 being arranged on shell 11 two ends, is packaged with inert gas in shell 11; Pyromagnetic release comprises a bimetal leaf, and bimetal leaf is connected with the second electrode 13.
When gas discharge tube persistence drag arc, produce high temperature, bimetal leaf temperature distortion, when being deformed into a certain degree, departs from the sheet metal of the second electrode contact, thus cuts off circuit.Hit draw bar thus lead agency action cut-out circuit.
In the utility model,
Sealed by joint filling material 7, facilitate the utility model to assemble, and ensure internal structure not by outside contamination, avoid the materials such as extraneous dust to affect internal structure.
Embodiment 2 is with embodiment 13, and multiple gas discharge tube body 1 connects successively, improves the utility model to the performance of circuit protection.
In embodiment 3, electrode leads to client 121 and the 4th electrode 22 make Thermal Cutoffs 2 use as fuse separately, and meanwhile, electrode leads to client 121 and the first electrode 12 make gas discharge tube body 1 use as gas discharge tube separately.
In embodiment 6, when the first electrode 12 is connected with external circuit with the 4th electrode 22, external current loop " is turned round ", a kind of new circuit access infrastructure is provided.
In embodiment 7, the object that U-shaped fusible alloy realizes U-shaped fusible alloy is to allow the bottom of " U " type and the more close contact of gas discharge tube body, experiencing temperature faster, more accurately open position, thus fast cut-off circuit.Insulation crust 3 protective gas discharge tube main body 1 and U-shaped fusible alloy.
In embodiment 8, U-shaped fusible alloy realizes the current circuit of access " turning round ".Insulation crust 3 protective gas discharge tube main body 1 and U-shaped fusible alloy.U-shaped containment vessel 8 realizes further protection to U-shaped fusible alloy.
In embodiment 9 and embodiment 11, two bending pins 9 realize the current circuit of access " turning round ".
In embodiment 12,
When gas discharge tube persistence drag arc, due to high temperature action, fusible alloy block 103 melts (to be installed between recess and metal shell, and between electrode lead-out pins and perforate), now metal shell 102 loosens, the reset response of back-moving spring 10 can promote metal shell 102 and depart from gas discharge tube body 1, even if whole gas discharge tube and circuit disconnect.
Back-moving spring 10 makes Thermal Cutoffs 2 and gas discharge tube body 1 disconnect by reset force effect, and when ensureing gas discharge tube body 1 arcing, Thermal Cutoffs disconnects rapidly and thoroughly, improves circuit protection performance.
Fuse shell 102 protects Thermal Cutoffs 2, and avoids outer member affected because producing flame, high temperature etc. during high thermal cutoff by fuse.
In embodiment 1 to embodiment 4, embodiment 6 to embodiment 8 and embodiment 10, gas discharge tube body 1 and Thermal Cutoffs 2 in aggregates, convenient to install.
In embodiment 7, embodiment 8 and embodiment 10, gas discharge tube body 1 and Thermal Cutoffs 2, in same housing, on the one hand, can utilize the heat that gas discharge tube body 1 produces fully; On the other hand, the breakdown superhigh temperature arc light produced instantaneously of gas discharge tube can not cause damage to around components and parts.
The utility model is arranged in circuit; when gas discharge tube persistence drag arc; its high temperature produced makes Thermal Cutoffs 2 or Pyromagnetic release disconnect; namely high temperature makes Thermal Cutoffs 2 or Pyromagnetic release place open circuit; thus gas discharge tube and circuit are disconnected; high temperature is avoided to cause other components and parts to catch fire, protective circuit.Gas discharge tube body 1 and Thermal Cutoffs 2 in aggregates, easy for installation; Gas discharge tube body 1 and Thermal Cutoffs 2, in same housing, on the one hand, can utilize the heat that gas discharge tube body 1 produces fully; On the other hand, the breakdown superhigh temperature arc light produced instantaneously of gas discharge tube can not cause damage to around components and parts.When gas discharge tube persistence drag arc, its high temperature produced makes Thermal Cutoffs 2 disconnect, in embodiment 1 to 4, embodiment 6 to 8 and embodiment 12, i.e. and fusible alloy fusing.
The utility model is not limited to above-mentioned execution mode, if do not depart from spirit and scope of the present utility model to various change of the present utility model or distortion, if these are changed and distortion belongs within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these changes and distortion.
Claims (14)
1. the gas discharge tube with Thermal protection; comprise gas discharge tube body; described gas discharge tube body comprises a shell and is arranged on the first electrode and second electrode at shell two ends; it is characterized in that; also comprise a Thermal Cutoffs; described Thermal Cutoffs comprises third electrode and the 4th electrode, described third electrode and the second Electrode connection.
2. the gas discharge tube with Thermal protection according to claim 1, is characterized in that, described Thermal Cutoffs comprises the insulation crust that a fusible alloy and has the open at both ends of cavity; One end of described fusible alloy is third electrode, and the other end and is drawn wire and connected; Described open at both ends comprises first uncovered and second uncovered; Described cavity is located at by described fusible alloy, and described extraction wire uncoveredly extends to the external world from first and as the 4th electrode, is filled with disconnected agent of fluxing in described cavity; First of described insulation crust is uncoveredly sealed by joint filling material, and described insulation crust is arranged on the outer casing end residing for described second electrode by second uncovered residing one end.
3. the gas discharge tube with Thermal protection according to claim 1 and 2, is characterized in that, comprises several gas discharge tube bodies, and described gas discharge tube body is connected with described Thermal Cutoffs.
4. the gas discharge tube with Thermal protection according to claim 1, is characterized in that, described second electrode extends an electrode leads to client.
5. the gas discharge tube with Thermal protection according to claim 4, is characterized in that, described electrode leads to client is perpendicular to the axis wearing the first electrode and the second electrode; Described Thermal Cutoffs comprises the insulation crust that a fusible alloy and has the open at both ends of cavity; One end of described fusible alloy is third electrode, and the other end and is drawn wire and connected; Described open at both ends comprises first uncovered and second uncovered; Described cavity is located at by described fusible alloy, and described extraction wire uncoveredly extends to the external world and as the 4th electrode from first; Described insulation crust first uncovered by joint filling material or sealing plug sealing, described insulation crust is arranged on described electrode leads to client by second uncovered residing one end; Described third electrode is connected with electrode leads to client, and described insulation crust and described gas discharge tube body are in the same side of described electrode leads to client; Described first electrode and the 4th electrode are in described the same side with the gas discharge tube of Thermal protection.
6. the gas discharge tube with Thermal protection according to claim 1, is characterized in that, described Thermal Cutoffs comprises the insulation crust that a heat-sensitive alloy and has the open at both ends of cavity; One end of described heat-sensitive alloy is third electrode, and the other end and is drawn wire and connected; Described open at both ends comprises first uncovered and second uncovered; Described heat-sensitive alloy is located at described cavity, and described extraction wire uncoveredly extends to the external world and as the 4th electrode from first; First of described insulation crust is uncoveredly sealed by joint filling material, and described insulation crust is arranged on the outer casing end residing for described second electrode by second uncovered residing one end; Described heat-sensitive alloy is marmem.
7. the gas discharge tube with Thermal protection according to claim 1, is characterized in that, described Thermal Cutoffs is a fusible alloy, and the two ends of described fusible alloy are respectively as third electrode and the 4th electrode; The described gas discharge tube with Thermal protection also comprises the insulation crust that has inner chamber; Described inner chamber comprises the first chamber and the second chamber, and described first chamber is U-shaped chamber, and described fusible alloy is U-shaped fusible alloy, and described U-shaped fusible alloy is located in described U-shaped chamber; Described gas discharge tube body is arranged on described second chamber; Described first electrode and described 4th electrode are respectively equipped with electrode pin, and it is outer and be in the same side of insulation crust that two electrode pins extend to described insulation crust.
8. the gas discharge tube with Thermal protection according to claim 1, is characterized in that, described Thermal Cutoffs is a fusible alloy, and the two ends of described fusible alloy are respectively as third electrode and the 4th electrode; The described gas discharge tube with Thermal protection also comprises the insulation crust that has inner chamber; Be provided with the U-shaped containment vessel of the hollow of open at both ends in described inner chamber, described fusible alloy is U-shaped fusible alloy, and described U-shaped fusible alloy is located in described U-shaped containment vessel and two ends extend to outside U-shaped containment vessel; Described gas discharge tube body is arranged on described inner chamber and is placed in " U " type enclosing region of described U-shaped containment vessel; Described first electrode and described 4th electrode are respectively equipped with electrode pin, and it is outer and be in the same side of insulation crust that two electrode pins extend to described insulation crust.
9. the gas discharge tube with Thermal protection according to claim 1, is characterized in that, described second electrode and third electrode connect a bending pin respectively, the two bending mutual spot-welded of pin or high temperature brazing welding; Described first electrode and the 4th electrode are in described the same side with the gas discharge tube of Thermal protection.
10. the gas discharge tube with Thermal protection according to claim 9, is characterized in that, also comprises the insulation crust that has inner chamber; Gas discharge tube body and Thermal Cutoffs are located in described inner chamber; Described first electrode and described 4th electrode are respectively equipped with electrode pin, and it is outer and be in the same side of insulation crust that two electrode pins extend to described insulation crust.
11. gas discharge tubes with Thermal protection according to claim 1 or 9, it is characterized in that, described Thermal Cutoffs is alloy-type temperature fuse or organic type Thermal Cutoffs.
12. gas discharge tubes with Thermal protection according to claim 1, is characterized in that, the metal shell that described Thermal Cutoffs comprises fusible alloy block, an electrode lead-out pins and has cavity;
Described cavity has one uncovered, and be the first outer end with described uncovered relative one end, described first outer end is provided with perforate;
Outer casing end residing for described second electrode is an installation recess, described metal shell inserts installation recess by opening end, clamps for making metal shell and installing the fusible alloy block that recess interfixes between the outer wall of described metal shell and the inwall installing recess; A back-moving spring is clamped between the madial wall of described installation recess and described first outer end;
Described electrode lead-out pins inserts described perforate, clamps described fusible alloy block between described electrode lead-out pins and perforate; Described metal shell is as third electrode, and described electrode lead-out pins is as the 4th electrode.
13. gas discharge tubes with Thermal protection according to claim 12, is characterized in that, also comprise the fuse shell of a hollow, and described Thermal Cutoffs is in described fuse shell, and described fuse shell is arranged on described gas discharge tube body; Described electrode lead-out pins extends to outside described fuse shell.
14. 1 kinds of gas discharge tubes with Thermal protection; comprise gas discharge tube body; described gas discharge tube body comprises a shell and is arranged on the first electrode and second electrode at shell two ends; it is characterized in that; also comprise a Pyromagnetic release; described Pyromagnetic release comprises a bimetal leaf, described bimetal leaf and described second Electrode connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144684.2U CN204668272U (en) | 2015-03-13 | 2015-03-13 | With the gas discharge tube of Thermal protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144684.2U CN204668272U (en) | 2015-03-13 | 2015-03-13 | With the gas discharge tube of Thermal protection |
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| Publication Number | Publication Date |
|---|---|
| CN204668272U true CN204668272U (en) | 2015-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097386A (en) * | 2015-03-13 | 2015-11-25 | 厦门赛尔特电子有限公司 | Gas discharge tube with thermal protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097386A (en) * | 2015-03-13 | 2015-11-25 | 厦门赛尔特电子有限公司 | Gas discharge tube with thermal protection |
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