CN108257826A - It is a kind of that there is the breaker of plastic casing of overload-alarm - Google Patents
It is a kind of that there is the breaker of plastic casing of overload-alarm Download PDFInfo
- Publication number
- CN108257826A CN108257826A CN201810113610.0A CN201810113610A CN108257826A CN 108257826 A CN108257826 A CN 108257826A CN 201810113610 A CN201810113610 A CN 201810113610A CN 108257826 A CN108257826 A CN 108257826A
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- China
- Prior art keywords
- breaker
- alarm
- temperature
- drag hook
- overload
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
There is the breaker of plastic casing of overload-alarm the present invention relates to a kind of, including breaker body, temperature-sensitive telecontrol equipment, movable contact device and external alert device, one end of the temperature-sensitive telecontrol equipment is fixed on breaker body, the other end is connect with movable contact device, and the movable contact device is fixed on breaker body and is connect with external alert device.Compared with prior art, the present invention has many advantages, such as simple in structure, easy for installation and dependable performance.
Description
Technical field
The present invention relates to field of circuit breakers, have the function of the breaker of plastic casing of overload-alarm more particularly, to a kind of.
Background technology
Currently on the market carry overload-alarm function breaker, be all using one or more fine motions or travel switch come
As alarm triggering device.Such as a kind of " modeling with thermal overload alarm non-tripping function disclosed in patent CN203910702U
Case circuit breaker " and CN102299028A, disclosed " a kind of breaker overload-alarm non-tripping device ".It is exactly using a fine motion
For switch as conducting contact component, signal acquisition is with a mechanism with alarm draw bar or rotating lever.Both knots
Structure is more similar, and wherein overload signal acquisition is all using a more complicated mechanism part.By the mistake information carrying of temperature-sensing element
Number pass to microswitch.The deficiency of this structure is that alarm module part structures are complicated, poor reliability.It is taken off with traditional overload
It can not achieve modularization switching between button breaker." there is the heat of overload-alarm non-tripping disclosed in patent CN202084489U
Magnetic-type breaker " using 3 microswitches, is fixed on temperature-sensing element.The invention has three groups of tripping mechanisms, and structure is multiple
It is miscellaneous, poor reliability.6 conducting wires of 3 microswitches, are scattered in breaker, cannot get effective protection, there is security risk.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind has overload-alarm
The breaker of plastic casing of function.
The purpose of the present invention can be achieved through the following technical solutions：
It is a kind of that there is the breaker of plastic casing of overload-alarm, include breaker body, temperature-sensitive telecontrol equipment, movable contact dress
It puts and is fixed on breaker body with external alert device, one end of the temperature-sensitive telecontrol equipment, the other end and movable contact device
Connection, the movable contact device are fixed on breaker body and are connect with external alert device.
Preferably, the movable contact device includes housing and is packaged in the movable contact module of enclosure interior, the shell
Body is fixed on breaker body, and the temperature-sensitive telecontrol equipment passes through housing to be connected with each other with movable contact module, the activity
Contact module is connect with external alert device.
Preferably, the movable contact module includes quiet contact assembly and dynamic contact assembly, the quiet contact assembly and dynamic
Contact assembly is both secured to the inner surface of housing, and the dynamic contact assembly is mutual with quiet contact assembly when breaker of plastic casing is alarmed
Contact.
Preferably, the quiet contact assembly includes static contact piece and the first conducting wire, first conducting wire and static contact piece
First end connects, and is pierced by housing and is connect with external alert device, the static contact piece is fixed on the inner surface of housing.
Preferably, the static contact on piece is equipped with the first contacting surface, and the radian of first contacting surface connects towards dynamic
Touch component.
Preferably, the dynamic contact assembly includes moving contact piece and the second conducting wire, second conducting wire and moving contact piece
First end connects, and is pierced by housing and is connect with external alert device, the moving contact piece is fixed on the inner surface of housing, the moving contact
The second end of piece is connect with temperature-sensitive telecontrol equipment.
Preferably, the moving contact on piece is equipped with the second contacting surface, and the radian of second contacting surface connects towards quiet
Touch component.
Preferably, the temperature-sensitive telecontrol equipment includes temperature-sensing element and drag hook, and the temperature-sensing element is fixed on breaker sheet
On body, the both ends of the drag hook are connect respectively with temperature-sensing element and movable contact device.
Preferably, the drag hook includes drag hook set, drag hook handle and drag hook face, and the drag hook set is fixed on temperature-sensing element,
The drag hook handle connects drag hook set and drag hook face respectively, and the drag hook face is connect with movable contact device.
Preferably, the drag hook set includes body ontology and the temperature-sensing element card slot and installation that are set on body ontology
Hole, the temperature-sensing element are connect by temperature-sensing element card slot with body ontology, and by passing through the screw of mounting hole and body sheet
Body is fixed.
Compared with prior art, the present invention has the following advantages：
1) breaker of plastic casing proposed by the present invention passes through temperature-sensitive telecontrol equipment, movable contact device and external alert device
It cooperates so that corresponding movement is realized by temperature-sensitive telecontrol equipment when breaker overloads, then drives movable contact device
The activity of respective direction is carried out, so as to finally realize the alarm of external alert device, whole device modularization, by all linked with one another
Movement allows whole device to realize overload-alarm, and as a result of movable contact device rather than microswitch, thus
The complexity of whole device is relatively low and the degree of modularity is higher, is easy to implement, assembles and repairs.
2) movable contact device proposed by the present invention, is packaged by housing, realizes modular form, convenient for manufacture
And installation, while enclosure interior encapsulation movable contact module, movable contact module is driven to carry out by the drag hook on temperature-sensing element
Movement, so as to fulfill overload-alarm, this way of realization with it is existing conducting contact component is used as by microswitch compared with,
It is simple in structure, it is easily installed and safeguards, so as to extend the service life of whole device, save the manufacture cost of device.
3) movable contact module includes quiet contact assembly and dynamic contact assembly, and in breaker of plastic casing alarm phase occurs for the two
Mutually contact so as to fulfill conducting therebetween, is then realized and is alarmed by external alarm realization, this one end is fixed another
The mode of contact movement conducting, very simple and without electrical control are held, therefore the cost of whole device is greatly saved.
4) static contact on piece is equipped with radian towards the first contacting surface of dynamic contact assembly, can reduce static contact and move and touch
The distance between head will not both be such that the two is in direct contact, while can reduce the motion range of moving contact, so as to extend moving contact
Service life, then extend the service life of entire warning device, save cost.
5) moving contact on piece is again provided with the second contacting surface, identical with the effect of the first contacting surface, thus can increase
The service life of long whole device.
6) temperature-sensitive telecontrol equipment includes temperature-sensing element and drag hook, drag hook is driven to transport by deformation of the temperature-sensing element in overload
It is dynamic, since drag hook connect with movable contact device, so that realization movable contact in movable contact device inside is so as to be connected, after
And so that the conducting of external alert device sends out alarm, this design is simple and is easily achieved, can increase alarm accuracy or
Production cost is reduced, is suitble to popularity.
7) drag hook is made up of drag hook set, drag hook handle and drag hook face three parts, and such structure can both realize temperature-sensitive member
The deformation of part drives the movement of movable contact device, and the two will not be caused to be connected directly so as to which motion range is excessive, ensures
The alarm accuracy of breaker.
8) drag hook is put on equipped with temperature-sensing element card slot and mounting hole, ensures that drag hook set can be close by the cooperation of the two
It is fixed on temperature-sensing element, drag hook is avoided to come off from temperature-sensing element and leads to not alarm.
Description of the drawings
Fig. 1 is the overall structure diagram for having the function of the breaker of plastic casing of overload-alarm；
Fig. 2 is the configuration schematic diagram of movable contact device；
Fig. 3 is the stereogram of movable contact device；
Fig. 4 is the structure diagram of the pedestal of the housing of movable contact device；
Fig. 5 is the structure diagram of quiet contact assembly；
Fig. 6 is the structure diagram of dynamic contact assembly；
Fig. 7 is the structure diagram of the end cap of the housing of movable contact device；
Fig. 8 is the structure diagram of drag hook；
Wherein, 1 is breaker of plastic casing, and 2 be movable contact device, and 3 be pedestal, and 4 be end cap, and 5 be quiet contact assembly, and 6 are
Dynamic contact assembly, 7 be drag hook, and 8 be temperature-sensing element, and 9 be adjusting screw, and 10 be nut, and 31 be static contact card slot, and 32 be moving contact
Card slot, 33 be positioning convex platform, and 34 be metallic channel, and 35 be card hole, and 41 be wire guide, and 42 be front and rear baffle, and 43 be location hole, and 44 are
Barb, 51 be the first contacting surface, and 52 be the first conducting wire, and 61 be the second contacting surface, and 62 be movable contact end, and 63 be crotch,
64 be the second conducting wire, and 65 be bending positioning surface, and 71 be drag hook face, and 72 be mounting hole, and 73 be temperature-sensing element card slot.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
In order to solve the problems, such as that the apparatus for warning overload of existing breaker of plastic casing is complicated, the present embodiment proposes one kind
There is the breaker of plastic casing of overload-alarm, including breaker body, temperature-sensitive telecontrol equipment, movable contact device 2 and outside
Alarm, one end of temperature-sensitive telecontrol equipment are fixed on breaker body, and the other end is connect with movable contact device 2, and activity connects
Device 2 is touched to be fixed on breaker body and connect with external alert device.
According to above structure, following examples are proposed：
Embodiment 1
As shown in Figure 1, the breaker of plastic casing 1 in the present embodiment mainly includes breaker body, temperature-sensitive telecontrol equipment, activity
Four part of device 2 and external alert device is contacted, the internal structure of movable contact device 2 is as shown in Fig. 2~7.The movable contact fills
It puts 2 to include housing and be packaged in internal movable contact module, middle casing is mainly made of pedestal 3 and end cap 4, movable contact
Module is mainly made of quiet contact assembly 5 and dynamic contact assembly 6, wherein static contact piece by the static contact card slot 31 of pedestal 3, Gu
Determine on the base 3.Static contact piece left end welds the first conducting wire 52.Three moving contact pieces are also by bending positioning surface 65, with pedestal 3
3 moving contact card slots 32 coordinate, it is fixed on the base 3.Three moving contact piece tail portions are all welded with the second conducting wire 64.Static contact piece
Three protrusion the first contacting surfaces 51 it is corresponding with the second contacting surface 61 of the protrusion of three moving contact pieces, reach distance
Closest approach.3 conducting wires of moving contact piece are stuck in the metallic channel 34 of pedestal 3.By 64 through end of the first conducting wire 52 and the second conducting wire
The wire guide 41 of lid 4 is aligned the location hole 43 of end cap 4 positioning convex platform 33 of pedestal 3, while 2 barbs 44 of end cap 4 is inserted
In 2 card holes 35 for entering pedestal 3.End cap 4 is compressed, barb 44 catches on pedestal 3.Complete the installation of movable contact device 2.End cap 4
Front and rear baffle 42, by 3 left-hand thread of pedestal inside, effective protection dynamic/static contact piece prevents the electric arc of breaker from entering alarm mould
Inside block.
Movable contact device 2 is installed in the pedestal both ends concave surface of breaker body, as shown in Figure 1.By the sense of drag hook 7
Warm element card slot 73 is inserted in the top of temperature-sensing element 8, and threaded hole of the mounting hole 72 just with temperature-sensing element 8 is aligned, such as Fig. 1 and figure
Shown in 8.Adjusting screw 9 and nut 10 are tightened, drag hook 7 is fixed on temperature-sensing element 8.Drag hook 7 is being inserted in temperature-sensing element 8
In the process, the drag hook face 71 of drag hook 7, right through the end cap 4 of movable contact device 2.What drag hook 7 just hooked moving contact piece can
Moving contact end 62.
Breaker close the cover pushes down the both ends of the surface of 2 pedestal 3 of movable contact device, movable contact device 2 is fixed on disconnected
In the device ontology of road.4 conducting wires of movable contact device 2 are accessed in external alarm circuit.When a phase or multiphase electricity occurs in breaker
When flowing overload fault, temperature-sensing element 8 is heated to front curve, drives the drag hook 7 being sleeved on above, and what drag hook 7 pulled moving contact piece can
Moving contact end 62 rotates counterclockwise around fixing end.The top crotch 63 of moving contact piece, prevents drag hook 7 from skidding off contact surface.When dynamic
Contact blade rotates to certain position, and the second contacting surface 61 is contacted with the first contacting surface 51 of static contact, dynamic/static contact conducting,
External alert device starts to alarm.Since alarm failure will not exclude quickly, temperature-sensing element 8 will continue to be bent, and drag hook 7 also will continue to
Moving contact piece is pulled to rotate counterclockwise, the contact surface of dynamic/static contact will continue to mutually squeeze.Since dynamic/static contact piece all has
Sufficiently resilient variable, during extruding, the damage of component will not be caused.After troubleshooting is overloaded, temperature-sensing element 8 is extensive
Multiple flexural deformation, drag hook 7 move backward.Moving contact piece rotates clockwise, and restores to initial position.The contact arc of dynamic/static contact piece
There is crimp in face, under natural resiliency effect, restores to the original state.In the present embodiment, breaker overlond trip in order to prevent, must
The adjustment length of adjusting screw 9 need to be controlled in a certain range, prevent the draw bar of 9 contact breaker of adjusting screw, top is jumped
The tripping mechanism of breaker, so as to fulfill overload-alarm of not threading off.
Embodiment 2
Breaker of plastic casing structure in the present embodiment is with essentially identical in embodiment 1, and difference lies in the tune in the present embodiment
Section screw compared to twisting more forward in embodiment 1, so that adjusting screw and the distance of circuit breaker draw bar reduce, at this time
When overload-alarm occurs, draw bar can push up the releasing structure for jumping breaker, realize dropout overload-alarm.
Embodiment 3
Breaker of plastic casing in the present embodiment and the structure in embodiment 1 are essentially identical, and difference lies in the present embodiment only
Contacting surface is set in moving contact on piece, static contact on piece is not provided with corresponding contacting surface, in this way can be accidentally tactile to avoid occurring
Situation, suitable for the breaker of plastic casing high to required precision.
Embodiment 4
Breaker of plastic casing in the present embodiment and the structure in embodiment 1 are essentially identical, and difference lies in the present embodiment
Barb is not provided on the end cap of housing, is also not provided with matched card hole on pedestal, but housing end cap and pedestal four
The buckle structure that setting is mutually clamped accordingly at week.
Embodiment 5
Breaker of plastic casing in the present embodiment and the structure in embodiment 1 are essentially identical, and difference lies in the present embodiment
Location hole and positioning convex platform are not provided in housing.
Embodiment 6
Breaker of plastic casing in the present embodiment and the structure in embodiment 1 are essentially identical, and difference lies in the present embodiment
Two cable-through holes are set on the end cap of housing, be respectively used to the first conducting wire by being connected with static contact piece and with moving contact piece
The second conducting wire being connected, so as to avoid wiring chaotic.
Claims (10)
1. a kind of have the function of the breaker of plastic casing of overload-alarm, which is characterized in that including breaker body, temperature-sensitive sportswear
Put, movable contact device and external alert device, one end of the temperature-sensitive telecontrol equipment are fixed on breaker body, the other end with
Movable contact device connects, and the movable contact device is fixed on breaker body and is connect with external alert device.
A kind of there is the breaker of plastic casing of overload-alarm 2. according to claim 1, which is characterized in that the activity
Contact device includes housing and is packaged in the movable contact module of enclosure interior, and the housing is fixed on breaker body, institute
It states temperature-sensitive telecontrol equipment to be connected with each other across housing and movable contact module, the movable contact module connects with external alert device
It connects.
A kind of there is the breaker of plastic casing of overload-alarm 3. according to claim 2, which is characterized in that the activity
It contacts module and includes quiet contact assembly and dynamic contact assembly, the quiet contact assembly and dynamic contact assembly are both secured to the interior of housing
Surface, the dynamic contact assembly contact with each other when breaker of plastic casing is alarmed with quiet contact assembly.
A kind of there is the breaker of plastic casing of overload-alarm 4. according to claim 3, which is characterized in that described quiet to connect
It touches component and includes static contact piece and the first conducting wire, first conducting wire connect with the first end of static contact piece, is pierced by housing and outside
Portion's alarm connection, the static contact piece are fixed on the inner surface of housing.
A kind of there is the breaker of plastic casing of overload-alarm 5. according to claim 4, which is characterized in that the stationary contact
Head on piece is equipped with the first contacting surface, and the radian of first contacting surface is towards dynamic contact assembly.
A kind of there is the breaker of plastic casing of overload-alarm 6. according to claim 3, which is characterized in that described dynamic to connect
It touches component and includes moving contact piece and the second conducting wire, second conducting wire connect with the first end of moving contact piece, is pierced by housing and outside
Portion's alarm connection, the moving contact piece are fixed on the inner surface of housing, second end and the temperature-sensitive sportswear of the moving contact piece
Put connection.
A kind of there is the breaker of plastic casing of overload-alarm 7. according to claim 6, which is characterized in that described dynamic to touch
Head on piece is equipped with the second contacting surface, and the radian of second contacting surface is towards quiet contact assembly.
A kind of there is the breaker of plastic casing of overload-alarm 8. according to claim 1, which is characterized in that the temperature-sensitive
Telecontrol equipment includes temperature-sensing element and drag hook, and the temperature-sensing element is fixed on breaker body, the both ends difference of the drag hook
It is connect with temperature-sensing element and movable contact device.
A kind of there is the breaker of plastic casing of overload-alarm 9. according to claim 8, which is characterized in that the drag hook
Including drag hook set, drag hook handle and drag hook face, the drag hook set is fixed on temperature-sensing element, and the drag hook handle connects drag hook set respectively
With drag hook face, the drag hook face is connect with movable contact device.
A kind of there is the breaker of plastic casing of overload-alarm 10. according to claim 9, which is characterized in that the drawing
Rhampotheca includes body ontology and the temperature-sensing element card slot and mounting hole that are set on body ontology, and the temperature-sensing element passes through temperature-sensitive
Element card slot is connect with body ontology, and by the way that the screw of mounting hole is passed through to be fixed with body ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113610.0A CN108257826B (en) | 2018-02-05 | 2018-02-05 | Moulded case circuit breaker with overload alarming function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113610.0A CN108257826B (en) | 2018-02-05 | 2018-02-05 | Moulded case circuit breaker with overload alarming function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108257826A true CN108257826A (en) | 2018-07-06 |
| CN108257826B CN108257826B (en) | 2020-02-18 |
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ID=62744007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810113610.0A Active CN108257826B (en) | 2018-02-05 | 2018-02-05 | Moulded case circuit breaker with overload alarming function |
Country Status (1)
| Country | Link |
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| CN (1) | CN108257826B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021505A (en) * | 2019-05-19 | 2019-07-16 | 梁根如 | Current over-load protector |
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| US3622923A (en) * | 1968-07-11 | 1971-11-23 | Ite Imperial Corp | Electromagnetic device for circuit breaker trip assembly unit |
| CN101944458A (en) * | 2010-08-20 | 2011-01-12 | 江苏西门控电器有限公司 | Alarming contact device of moulded case circuit breaker |
| CN202084489U (en) * | 2011-03-10 | 2011-12-21 | 北京正北元电器有限公司 | Thermomagnetic plastic-case breaker with overload alarm non-tripping function |
| CN102299028A (en) * | 2011-08-09 | 2011-12-28 | 无锡新宏泰电器科技股份有限公司 | Overload warning non-tripping device for circuit breaker |
| CN203910702U (en) * | 2014-06-17 | 2014-10-29 | 浙江天正电气股份有限公司 | Plastic housing circuit breaker with thermal overload alarm non-tripping function |
| CN205335193U (en) * | 2015-12-14 | 2016-06-22 | 浙江正泰电器股份有限公司 | Hot not trip gear that reports to police that transships of circuit breaker |
| CN105869960A (en) * | 2016-06-02 | 2016-08-17 | 无锡新宏泰电器科技股份有限公司 | Overload signal output device of thermomagnetic molded case circuit breaker |
| CN105990073A (en) * | 2015-02-13 | 2016-10-05 | 上海良信电器股份有限公司 | Overload alarm non-tripping device of molded case circuit breaker |
| CN107154325A (en) * | 2016-03-02 | 2017-09-12 | 浙江正泰电器股份有限公司 | The overload-alarm non-tripping device of breaker |
| CN206834143U (en) * | 2017-06-28 | 2018-01-02 | 德力西电气有限公司 | The overload-alarm non-tripping device and breaker of a kind of breaker |
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2018
- 2018-02-05 CN CN201810113610.0A patent/CN108257826B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3622923A (en) * | 1968-07-11 | 1971-11-23 | Ite Imperial Corp | Electromagnetic device for circuit breaker trip assembly unit |
| CN101944458A (en) * | 2010-08-20 | 2011-01-12 | 江苏西门控电器有限公司 | Alarming contact device of moulded case circuit breaker |
| CN202084489U (en) * | 2011-03-10 | 2011-12-21 | 北京正北元电器有限公司 | Thermomagnetic plastic-case breaker with overload alarm non-tripping function |
| CN102299028A (en) * | 2011-08-09 | 2011-12-28 | 无锡新宏泰电器科技股份有限公司 | Overload warning non-tripping device for circuit breaker |
| CN203910702U (en) * | 2014-06-17 | 2014-10-29 | 浙江天正电气股份有限公司 | Plastic housing circuit breaker with thermal overload alarm non-tripping function |
| CN105990073A (en) * | 2015-02-13 | 2016-10-05 | 上海良信电器股份有限公司 | Overload alarm non-tripping device of molded case circuit breaker |
| CN205335193U (en) * | 2015-12-14 | 2016-06-22 | 浙江正泰电器股份有限公司 | Hot not trip gear that reports to police that transships of circuit breaker |
| CN107154325A (en) * | 2016-03-02 | 2017-09-12 | 浙江正泰电器股份有限公司 | The overload-alarm non-tripping device of breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021505A (en) * | 2019-05-19 | 2019-07-16 | 梁根如 | Current over-load protector |
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| Publication number | Publication date |
|---|---|
| CN108257826B (en) | 2020-02-18 |
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