CN207021222U - A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase - Google Patents

A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase Download PDF

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Publication number
CN207021222U
CN207021222U CN201720818297.1U CN201720818297U CN207021222U CN 207021222 U CN207021222 U CN 207021222U CN 201720818297 U CN201720818297 U CN 201720818297U CN 207021222 U CN207021222 U CN 207021222U
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plastic casing
thermal overload
push rod
phase
slot
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CN201720818297.1U
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袁亦峰
宋志文
徐赛金
杜和艳
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Delixi Electric Co Ltd
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Delixi Electric Co Ltd
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Abstract

A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase is the utility model is related to, including：Pedestal：Signal pickup assembly is fixed with pedestal, corresponding A, B, C three-phase are provided with three microswitches, and the individually outside thermal overload alarm device of lead connection on the signal pickup assembly；Pin-lift arrangement：Including three push rod component being correspondingly arranged with the microswitch, respectively A phases push rod component, B phases push rod component and C phase push rod component, one end of each push rod component is also connected with being fixedly mounted on pedestal a bimetallic element by heat producing element, and the other end, which is used to abut, touches the microswitch.Compared with prior art, the utility model overcomes the defects of conventional circuit breaker internal insufficient space, realize that three-phase current overload is separately monitored alarm, lead-out wire puts mark pipe, facilitate factory's detection and terminal block, user can connect forceful electric power on these leads, meet the power demand of acousto-optic-electric signal load.

Description

A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase
Technical field
A kind of breaker of plastic casing is the utility model is related to, is moulded more particularly, to a kind of independent alarm non-tripping of thermal overload three-phase Case circuit breaker.
Background technology
Breaker of plastic casing is a kind of low voltage circuit protection device, has the defencive function such as short circuit, overload, under-voltage.Work as electric current Exceed
During setting value, breaker energy automatic shutdown circuit, play a part of protection load and circuit.But some specific Occasion, it is desirable to provide a kind of to have special defencive function, i.e., when distribution system is in overload, breaker of plastic casing sends alarm signal Unpredictalbe failure and disappear number without being turned off circuit, such as when fire occurs for some important events such as hospital, megastore Anti- pump it is emergent pneumatic etc., be likely to overload, but in order to try to gain time precious to one, breaker is only reported during this Police is without threading off, to allow user to be judged according to field condition at that time to determine.And only when main circuit generation is short Lu Shi, breaker of plastic casing can just thread off, and cut off circuit immediately, and the power system under this occasion just needs to use overload report The alert breaker do not threaded off, to ensure the continuity of power supply.In addition, for some building, each phase of breaker of plastic casing Whether size of current is not also consistent, require this when and be separately monitored the electric current of each phase and overload, so that user presses According to actual conditions processing.
Chinese patent CN201510079277.2 discloses a kind of breaker overload-alarm non-tripping device, and it includes driver Structure support, support shaft are arranged on mechanism rack, and short-circuit protection draw bar and overload-alarm draw bar are all sleeved in support shaft And being rotated around support shaft of not interfering can be cared for, overload-alarm draw bar and adjustable touch part link, and can be pushed away by adjustable touch part The dynamic alarm signal that can be triggered in support shaft rotating shaft, overload-alarm draw bar rotation process collects output device, adjustable shake-up See that on the bimetal leaf, bimetal leaf is fitted together with heater element, heating element generating heat can make bimetal leaf deformation so that Adjustable touch part is driven to promote overload-alarm draw bar to rotate.The breaker can realize alarm non-tripping when overloading, but Some occasions, can not determine it is which mutually overloads, it is therefore desirable to a kind of new device that respectively mutually can independently alarm.
Utility model content
The purpose of this utility model is exactly to provide a kind of thermal overload three the defects of overcoming above-mentioned prior art to exist Mutually independent alarm non-tripping breaker of plastic casing.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase, including：
Pedestal：Signal pickup assembly is fixed with pedestal, corresponding A, B, C three-phase are provided with three on the signal pickup assembly Individual microswitch, and the individually outside thermal overload alarm device of lead connection；
Pin-lift arrangement：Including three push rod component being correspondingly arranged with the microswitch, respectively A phases push rod component, B Phase push rod component and C phase push rod component, one end of each push rod component are also connected with being fixedly mounted on pedestal by heat producing element One bimetallic element, the other end, which is used to abut, touches the microswitch.
Preferably, described push rod component includes connector, support and the cam screw rod being sequentially connected, wherein, the company The bimetallic element is fixedly connected with one end of fitting, the one end of the cam screw rod is used for the abutting shake-up fine motion and opened Close.
It is furthermore preferred that described connector is L-shaped, including integrally formed first vertical plane above and under being located at The first level face of side, wherein, the first vertical plane installs the bimetallic element by trip bolt, and first level face passes through riveting Nail connects the support；
The support is also L-shaped, including integrally formed second horizontal plane above and underlying second erects Face directly, wherein, second is horizontal towards side protrusion, and is bonded fixation with the horizontal plane of the connector, is set on the second vertical plane There is screwed hole, and be connected with the cam screw flight.
Even more preferably, positioning convex is provided with two angles on described first level face, the second horizontal plane Two sides are provided with the locating slot matched with the positioning convex, and are coordinated by positioning convex and locating slot and realize positioning peace Dress.
It is furthermore preferred that described cam screw rod includes threaded shank and cam part, wherein, one end connection of the threaded shank The support, thread bush is provided with the cam part for being used for touching microswitch on the other end.
Even more preferably, described cam part is provided with and marks basic circle area, range and range midpoint Scale mark.
Preferably, wiring board base is installed, described signal pickup assembly includes being fixedly installed on described pedestal Wiring board on wiring board base, the microswitch is mounted with the circuit board, wherein,
Described wiring board base is connected by polylith fixed plate and forms I-shape construction, wherein two pieces of parallel fixations Plate is provided with the first slot, and the wiring board, which is provided with two, can dock the second slot for inserting first slot, and pass through Second slot realizes that the level on wiring board assist side base is fixedly mounted with the insertion of docking of the first slot；
First slot and the second slot meet：The width of first slot and the second slot matches corresponding circuit respectively The width of plate and fixed plate, and the spacing of described two first slots and the spacing of two the second slots match.
It is furthermore preferred that the top of described wiring board is additionally provided with positioning convex point, the breaker of plastic casing device also includes lid The lid being located on the pedestal, limit top plate is provided with the cover inner surface, and caused when lid lid is located on pedestal, limit Position top plate props up the positioning convex point and realizes wiring board in the spacing of vertical direction.
Preferably, the wire guide and cable hole passed through for lead is additionally provided with described wiring board and lid.
It is furthermore preferred that described cable hole includes the first cable hole and the second cable hole, wherein, the first cable hole supplies A phases Two leads of microswitch pass through, the second cable hole passes through for the lead of B phases and the microswitch of C phases.
Compared with prior art, the utility model has advantages below：
(1) the utility model drives pull bar and support after relying on bimetal leaf heated bending, so that cam screw rod touches Dynamic microswitch trigger signal, and export and realize that thermal overload is alarmed to external alert device, further, since now bimetal leaf is simultaneously Dropout part can be touched unlike in general breaker of plastic casing device, therefore, will not also be occurred from dropout phenomenon.
(2) cam part of cam screw rod and threaded shank are installed by screw thread pair, therefore, can very easily be adjusted convex The distance of wheel portion and microswitch, realize that stroke is adjustable.
(3) the defects of overcoming conventional circuit breaker internal insufficient space, realize that three-phase current overload is separately monitored alarm, draw Mark pipe on lead collar, factory's detection and terminal block, user is facilitated to connect forceful electric power on these leads, meet acousto-optic telecommunications Number load power demand.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is general structure schematic diagram of the present utility model；
Fig. 3 is the structural representation of wiring board base of the present utility model；
Fig. 4 is the structural representation of signal pickup assembly of the present utility model；
Fig. 5 is A phases of the present utility model, the structural representation of B phase push rod component；
Fig. 6 is the structural representation of C phases push rod component of the present utility model；
Fig. 7 is the structural representation of connector of the present utility model；
Fig. 8 is the structural representation of support of the present utility model；
Fig. 9 is the structural representation of cam screw rod of the present utility model；
Figure 10 is the structural representation of lid of the present utility model；
In figure, 1- pedestals, 2- wiring board bases, 21,22- fixed plates, 23, the slots of 24- first, 3- signal pickup assemblies, 31- microswitches, 311- swing rods, 32- wiring boards, 321, the slots of 322- second, 323,324- positioning convex points, 3311,3312-A Phase terminal, 3321-B phase terminals, 3331-C phase terminals, 4-A phases, B phase push rod component, 41- connectors, the vertical planes of 411- first, 412- positioning convex, 413- first levels face, 42-AB phase supports, 421, the horizontal planes of 511- second, 422,512- second it is vertical Face, 423,513- locating slots, 43- cam screw rods, 431- threaded shanks, 432- cam parts, 433- ranges, 434- basic circles area, 435- ranges midpoint, 5-C phase push rod component, 51-C phase supports, 6- lids, the cable holes of 61- first, the cable holes of 62- second, 7- bimetallic elements, 71- trip bolts.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase, including：
Pedestal 1：Signal pickup assembly 3 is fixed with pedestal 1, corresponding A, B, C three-phase are set on the signal pickup assembly 3 There are three microswitches 31, and the individually outside thermal overload alarm device of lead connection.The microswitch 31 of signal pickup assembly 3 COM pin doublings, and to common port is used as on the pin being connected with A phase terminals 3311,33123312, remaining pin is each only It is vertical, and the normally-closed contact not wiring on microswitch 31.
Pin-lift arrangement：Including three push rod component being correspondingly arranged with microswitch 31, respectively A phases push rod component 4, B Phase push rod component 4 and C phases push rod component 5, one end of each push rod component are also connected with being fixedly mounted on pedestal 1 by heat producing element A bimetallic element 7, the other end is used to abut the swing rod 311 touched on microswitch 31, and trigger signal is produced, through drawing Line is conveyed to the alarm of external alert device.
As a preferred embodiment, push rod component includes connector 41, support and the cam screw rod being sequentially connected 43, wherein, bimetallic element 7 is fixedly connected with one end of connector 41, the one end of cam screw rod 43 is micro- for abutting shake-up Dynamic switch 31.
It is furthermore preferred that connector 41 is L-shaped, including integrally formed first vertical plane 411 above and under being located at The first level face 413 of side, wherein, the first vertical plane 411 installs bimetallic element 7, first level face by trip bolt 71 413 pass through rivet interlacement support；Support is also L-shaped, can be divided into two kinds of AB phases support 42 and C phases support, and each support includes one Body formed the second horizontal plane 421,511 and underlying second vertical plane 422,512 above, wherein, the second water Plane 421,511 is protruded to side, and fixation is bonded with the horizontal plane of connector 41, and the second vertical plane 422,512 is provided with spiral shell Pit, and be threadedly coupled with cam screw rod 43.Even more preferably, positioning is provided with two angles on first level face 413 Projection 412, two sides of the second horizontal plane 421,511 are provided with the locating slot 423,513 matched with positioning convex 412, and lead to Cross positioning convex 412 and realize location and installation with the cooperation of locating slot 423,513.
It is furthermore preferred that cam screw rod 43 includes threaded shank 431 and cam part 432, wherein, one end connection of threaded shank 431 Support, thread bush is provided with the cam part 432 for being used for touching microswitch 31 on the other end.Even more preferably, cam part 432 It is provided with the scale mark for marking basic circle area 434, range 433 and range midpoint 435.
As a preferred embodiment, wiring board base 2 is installed on pedestal 1, signal pickup assembly 3 includes fixing Wiring board 32 on assist side base 2 is set, microswitch 31 is mounted with assist side 32, wherein,
Wiring board base 2 is connected by polylith fixed plate 21,22 and forms I-shape construction, two pieces of parallel fixations wherein Plate 21,22 is provided with the first slot 23,24, and wiring board 32 can dock the second of the first slot 23,24 of insertion provided with two and insert Groove 321,322, and the assist side of wiring board 32 is realized with the insertion of docking of the first slot 23,24 by the second slot 321,322 Horizontal fixed installation on base 2；
First slot 23,24 and the second slot 321,322 meet：The width of first slot 23,24 and the second slot 321,322 Degree wiring board 32 and the width of fixed plate 21,22 corresponding to matching respectively, and the spacing of two the first slots 23,24 with two the The spacing of two slots 321,322 matches.
It is furthermore preferred that the top of wiring board 32 is additionally provided with positioning convex point 323,324, breaker of plastic casing device is also set including lid Lid 6 on pedestal 1, limit top plate is provided with the inner surface of lid 6, and caused when the lid of lid 6 is located on pedestal 1, limit Position top plate props up positioning convex point 323,324 and realizes wiring board 32 in the spacing of vertical direction.
As a preferred embodiment, the wire guide passed through for lead is additionally provided with wiring board 32 and lid 6 and is walked String holes, the wire guide guiding on 2 A phase terminals 3311 of A phases microswitch 31,3312 via line plate bases 2 and wiring board 32, Drawn again through the first cable hole 61 on lid 6 outside breaker, 1 B phase terminal 3321 of B phases microswitch 31, and C phases are micro- Wire guide guiding on the same via line plate base 2 of 1 C phase terminal 3331 and wiring board 32 of dynamic switch 31, then through on lid 6 The second cable hole 62 draw breaker outside.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using practicality It is new.Person skilled in the art obviously can easily make various modifications to these embodiments, and illustrating herein General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned Embodiment, those skilled in the art according to announcement of the present utility model, do not depart from improvement that the utility model category made and Modification all should be within the scope of protection of the utility model.

Claims (10)

  1. A kind of 1. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase, it is characterised in that including：
    Pedestal (1)：Signal pickup assembly (3) is fixed with pedestal (1), corresponding A, B, C tri- on the signal pickup assembly (3) Mutually it is provided with three microswitches (31), and the individually outside thermal overload alarm device of lead connection；
    Pin-lift arrangement：Including three push rod component being correspondingly arranged with the microswitch (31), respectively A phases push rod component, B Phase push rod component and C phase push rod component, one end of each push rod component are also connected with being fixedly mounted on pedestal (1) by heat producing element A bimetallic element, the other end, which is used to abut, touches the microswitch (31).
  2. A kind of 2. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 1, it is characterised in that institute The push rod component stated includes connector (41), support and the cam screw rod (43) being sequentially connected, wherein, the connector (41) The bimetallic element is fixedly connected with one end, the one end of the cam screw rod (43), which is used to abut, touches the microswitch (31)。
  3. A kind of 3. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 2, it is characterised in that institute The connector (41) stated is L-shaped, including integrally formed first vertical plane (411) above and underlying first water Plane (413), wherein, the first vertical plane (411) installs the bimetallic element, first level face (413) by trip bolt Pass through support described in rivet interlacement；
    The support is also L-shaped, including integrally formed second horizontal plane (421,511) above and underlying Two vertical planes (422,512), wherein, the second horizontal plane (421,511) to side protrude, and with the level of the connector (41) Face fitting is fixed, and the second vertical plane (422,512) is provided with screwed hole, and is threadedly coupled with the cam screw rod (43).
  4. A kind of 4. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 3, it is characterised in that institute Positioning convex (412), two sides of the second horizontal plane (421,511) are provided with two angles on first level face (413) stated The locating slot (423,513) matched with the positioning convex (412) is provided with, and passes through positioning convex (412) and locating slot (423,513) coordinate and realize location and installation.
  5. A kind of 5. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 2, it is characterised in that institute The cam screw rod (43) stated includes threaded shank (431) and cam part (432), wherein, one end connection institute of the threaded shank (431) Support is stated, thread bush is provided with the cam part (432) for being used for touching microswitch (31) on the other end.
  6. A kind of 6. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 5, it is characterised in that institute The cam part (432) stated is provided with the scale for marking basic circle area (434), range (433) and range midpoint (435) Mark.
  7. A kind of 7. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 1, it is characterised in that institute Wiring board base (2) is installed, described signal pickup assembly (3) includes fixed setting assist side bottom on the pedestal (1) stated Wiring board (32) on seat (2), the microswitch (31) is mounted with assist side (32), wherein,
    Described wiring board base (2) by polylith fixed plate (21,22) connect and form I-shape construction, wherein two pieces it is parallel Fixed plate (21,22) be provided with the first slot (23,24), the wiring board (32), which is provided with two, can dock insertion described the The second slot (321,322) of one slot (23,24), and pass through the second slot (321,322) and pair of the first slot (23,24) Patch the horizontal fixed installation realized on wiring board (32) assist side base (2)；
    First slot (23,24) meets with the second slot (321,322)：First slot (23,24) and the second slot (321, 322) width matches the width of corresponding wiring board (32) and fixed plate (21,22), and described two first slots respectively The spacing of (23,24) and the spacing of two the second slots (321,322) match.
  8. A kind of 8. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 7, it is characterised in that institute The top for the wiring board (32) stated is additionally provided with positioning convex point (323,324), and the breaker of plastic casing device is also located at institute including lid The lid (6) on pedestal (1) is stated, limit top plate is provided with lid (6) inner surface, and is caused when lid (6) lid is located at pedestal (1) when on, limit top plate props up the positioning convex point (323,324) and realizes wiring board (32) in the spacing of vertical direction.
  9. A kind of 9. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 7, it is characterised in that institute The wire guide and cable hole passed through for lead is additionally provided with the wiring board (32) and lid (6) stated.
  10. A kind of 10. independent alarm non-tripping breaker of plastic casing of thermal overload three-phase according to claim 9, it is characterised in that Described cable hole includes the first cable hole (61) and the second cable hole (62), wherein, the first cable hole (61) supplies the fine motion of A phases Two leads of switch (31) pass through, and the second cable hole (62) passes through for the lead of B phases and the microswitch (31) of C phases.
CN201720818297.1U 2017-07-07 2017-07-07 A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase Active CN207021222U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720818297.1U CN207021222U (en) 2017-07-07 2017-07-07 A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720818297.1U CN207021222U (en) 2017-07-07 2017-07-07 A kind of independent alarm non-tripping breaker of plastic casing of thermal overload three-phase

Publications (1)

Publication Number Publication Date
CN207021222U true CN207021222U (en) 2018-02-16

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Country Status (1)

Country Link
CN (1) CN207021222U (en)

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