CN203826324U - Pluggable controlled circuit breaker - Google Patents
Pluggable controlled circuit breaker Download PDFInfo
- Publication number
- CN203826324U CN203826324U CN201420127656.5U CN201420127656U CN203826324U CN 203826324 U CN203826324 U CN 203826324U CN 201420127656 U CN201420127656 U CN 201420127656U CN 203826324 U CN203826324 U CN 203826324U
- Authority
- CN
- China
- Prior art keywords
- fusing
- heating
- potsherd
- electrodes
- circuit breaker
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 64
- 229910000743 fusible alloy Inorganic materials 0.000 claims description 21
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 238000003466 welding Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011267 electrode slurry Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
The utility model discloses a pluggable controlled circuit breaker including a socket and a circuit breaker. The socket includes a pedestal, two fusing leading terminals which are mounted on the pedestal and can be electrically connected to a printed circuit board (PCB). The circuit breaker includes a housing, a temperature fusing unit disposed in the housing, and two fusing electrodes electrically connected with the temperature fusing unit. The housing of the circuit breaker matches the pedestal of the socket through pluggable connection, so that the two fusing electrodes and the two fusing leading terminals are corresponding to each other and electrical connection is formed. One the one hand, the pluggable controlled circuit breaker can fulfill a function of a temperature fuse: when the temperature of a heating area increases abnormally and reaches the fusing temperature of the temperature fusing unit, the temperature fusing unit is fused and thus the circuit is cut off, and a terrible accident caused by overheat of an electronic component is prevented; on the other hand, the pluggable controlled circuit breaker is not limited by characteristics thereof: the socket of the pluggable controlled circuit breaker can meet demands of the STM production process and can be repeatedly used by only replacing the circuit breaker.
Description
Technical field
The utility model relates to a kind of electronic product, particularly relates to a kind of plug-in controlled circuit cutter.
Background technology
In electronic product field now, product functional more and more stronger, and their size and weight is in continuous reduction, this only has the integrated and miniaturization by components and parts and system substrate just can be achieved.In the integrated of product and miniaturization process, exist a problem, excessive components and parts are concentrated, and must cause product easily heating in the course of the work, are difficult for heat radiation, and electronic circuit is existed to certain potential safety hazard.
Along with the fast development of electronic technology, printed circuit board is widely used in every field, all comprises corresponding printed circuit board in nearly all electronic equipment.As the Thermal Cutoffs of protection component, inner temperature-sensing element is low-melting alloy silk, is connected on two pins.Due to the thermally sensitive characteristic of Thermal Cutoffs itself, cannot realize modern mounting and plug-in mounting technique, by the characteristic of itself, limited to.And (welding temperature is too high for inappropriate weld job, weld time is oversize, pin is too short etc.) can make heat import Thermal Cutoffs inside into by pin, make temperature-sensing element overheated impaired, thereby tender reduce with pin connection reliability, in using, electric current passes through or other reason, damaged part just may produce and disconnect in advance phenomenon, and finds cannot directly extract replacing after open circuit, must heat and could realize replacement.
Avoid at present the method for welding fire damage Thermal Cutoffs to be: during manual welding, utilize as far as possible longer pin, longer pin to allow the weld time of growing and reduce overheated possibility.In the situation that pin is shorter, when welding will with nipper pliers or other tool holder on pin between solder joint and insurance filament on position with heat radiation, avoid welding heat to import Thermal Cutoffs inside into.While welding temperature should be controlled not too high, and weld time is short as far as possible.When scolding tin or spot welding, pin must suitably be fixed, and not so pin or sealing resin may be damaged, and when sealing resin is in warm time, draws or reverse pin to make it and fuse throw off, and causes mechanical failure.
Utility model content
The purpose of this utility model is to overcome the deficiency of prior art, and a kind of plug-in controlled circuit cutter is provided, and it can realize the function of Thermal Cutoffs, and it is not limited to by self character while installing.
The utility model solves the technical scheme that its technical problem adopts: a kind of plug-in controlled circuit cutter, comprises socket and circuit breaker; Socket comprises base, is located at the two fusing exits that base also can be electrically connected on pcb board, and circuit breaker comprises shell, is located at the temperature fusing unit of shell, and the two fusing electrodes that are electrically connected to temperature fusing unit; The shell of circuit breaker coordinates by grafting with the base of socket, makes its two fusing electrode corresponding with two fusing exits of socket, and forms electrical connection.
Further, described circuit breaker also comprises potsherd, and this potsherd is installed in described shell, and described two fusing electrodes are located at a wherein surface of potsherd, and described two fusing electrodes extend to respectively outside described shell.
Further, described circuit breaker also comprises heating unit and two heating electrodes, and described socket also comprises the two heating exits of being located at described base; Two heating electrodes are located at another surface of potsherd, and heating unit is positioned at described shell, and its two ends are electrically connected to two heating electrodes respectively, and two heating electrodes extend to outside described shell along the outward extending direction of described two fusing electrode respectively; Described shell coordinates by grafting with described base, also makes two heating electrodes corresponding with two heating exits of described socket, and forms electrical connection.
Further, described temperature fusing unit comprises low-melting alloy, and the two ends of this low-melting alloy are electrically connected to described two fusing electrodes respectively.
Further, between the corresponding described two fusing electrodes in a wherein surface of described potsherd, be provided with a groove, described low-melting alloy is connected across on this groove, between a side at a wherein surface of described potsherd and groove and the corresponding described low-melting alloy of described enclosure place, is filled with the disconnected agent of fluxing.
Further, described heating unit is located at another surface of described potsherd, or described heating unit and described potsherd are integral by high temperature sintering, and is placed in the middle of described potsherd, and described heating electrode exposes to described potsherd.
Further, described heating unit comprises heating resistor.
Further, described heating resistor is one of them of fixed carbon resister, metalfilmresistor, thick-film resistor.
Further, described shell is provided with under shed, and described potsherd has the extension of the under shed below that is positioned at described shell, and this extension forms the stretch out carrier of part of described two heating electrodes and two fusing electrodes; Between described potsherd and the under shed of described shell, adopt epoxy resin to realize sealing.
Further, the top of at least two side of described base is respectively equipped with buckle slot, the bottom of at least two lateral surfaces of described shell is respectively equipped with wedge shape boss, each wedge shape boss of described shell the respectively buckle slot corresponding with described base forms buckle and connects, and makes described shell and described base realize grafting and coordinates.
Further, the top, at least two side of described base extends upward respectively a lug, and each buckle slot of described base is located at respectively lug.
Further, the both sides of corresponding its buckle slot of medial surface of a wherein lug of described base are respectively equipped with a draw-in groove, the both sides of corresponding its wedge shape boss of a wherein lateral surface of described shell are respectively equipped with one for the Ka Tai with draw-in groove corresponding matching, each wedge shape boss of described shell is when the buckle slot corresponding with described base forms buckle and connect respectively, and two Ka Tai of described shell snap in respectively the draw-in groove that described base is corresponding.
The beneficial effects of the utility model are:
1, owing to adopting split type socket and circuit breaker to form controlled circuit cutter, and circuit breaker has temperature influence fusible to cut off the temperature fusing unit of circuit and the two fusing electrodes that are electrically connected to this temperature fusing unit, socket has the two fusing exits that can be electrically connected on pcb board, between circuit breaker and socket, by the mode of pegging graft, realizing two fusing electrodes coordinates with the electrical connection of two fusing exits, make the utility model can realize the function of Thermal Cutoffs on the one hand, when hot zone temperature anomaly raises, and while reaching the fusing-off temperature of temperature fusing unit, temperature fusing unit fuses and cuts off circuit, thereby stop electronic devices and components excessive heating to cause serious accident, the utility model is not limited to by self character on the other hand, that is, the socket of the utility model setting can meet the demand of SMT production technology, and it is just reusable only need to change circuit breaker.
2, circuit breaker of the present utility model arranges heating unit and heating electrode, and two heating exits of socket setting, make the utility model can also be as a fuse for cut-off loop initiatively, can receive outside little electric current, once heating unit temperature reaches the fusing-off temperature of temperature fusing unit, can initiatively disconnect main circuit.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But a kind of plug-in controlled circuit cutter of the present utility model is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is decomposing schematic representation of the present utility model;
Fig. 2 is the decomposing schematic representation of the corresponding heating unit side of circuit breaker of the present utility model;
Fig. 3 is the decomposing schematic representation of circuit breaker corresponding temperature fusing cell side of the present utility model;
Fig. 4 is D structure schematic diagram of the present utility model;
Fig. 5 is generalized section of the present utility model;
Fig. 6 is circuit theory diagrams of the present utility model.
Embodiment
Embodiment, refers to shown in Fig. 1-Fig. 5, and a kind of plug-in controlled circuit cutter of the present utility model, comprises socket 100 and circuit breaker 200; Socket 100 comprises base 101, is located at the two fusing exits 103 that base 101 also can be electrically connected on pcb board, and circuit breaker 200 comprises shell 201, is located at the temperature fusing unit of shell 201, and the two fusing electrodes 223 that are electrically connected to temperature fusing unit; The shell 201 of circuit breaker 200 coordinates by grafting with the base 101 of socket 100, makes its two fusing electrode 223 corresponding with two fusing exits 103 of socket 100, and forms electrical connection.
As a kind of preferred, described circuit breaker 200 also comprises a potsherd 202, this potsherd 202 is installed in described shell 201, described two fusing electrodes 223 are located at a wherein surface of potsherd 202, specifically adopt the modes such as platings, electrode slurry sintering, metal sputtering produce two parallel and stick in potsherd 202 thin electrode on a surface wherein, form two electrodes 223 that fuse.Described two fusing electrodes 223 extend to respectively outside described shell 201, are formed for two electrodes that externally connect.
As a kind of preferred, described circuit breaker 200 also comprises heating unit and two heating electrodes 212, and described socket 100 also comprises the two heating exits of being located at described base 101; Two heating electrodes 212 are located at another surface of potsherd 202, specifically adopt the modes such as platings, electrode slurry sintering, metal sputtering produce two parallel and stick in potsherd 202 another surperficial thin electrodes formation two heating electrodes 212.Heating unit is located at another surface of potsherd 202, or heating unit also can be integral by high temperature sintering by potsherd 202, and is placed in the middle of potsherd 202, and described heating electrode 202 exposes to described potsherd 202.Heating unit specifically comprises the heating resistor 211 that modes such as adopting resistance slurry sintering is made, this heating resistor 211 is one of them of fixed carbon resister, metalfilmresistor, thick-film resistor, this heating resistor 211 is positioned at described shell 201, and its two ends are electrically connected to two heating electrodes 212 respectively, the two ends of concrete heating resistor 211 are to be electrically connected to the top of two heating electrodes 212.The bottom of two heating electrodes 212 extends to outside described shell 201 along the outward extending direction of two fusing electrodes 223 respectively, is formed for two electrodes that externally connect.Described shell 201 coordinates by grafting with described base 101, also makes two heating electrodes 212 corresponding with two heating exits of described socket 100, and forms electrical connection.
As a kind of preferred, described temperature fusing unit comprises low-melting alloy 221, and the two ends of this low-melting alloy 221 are electrically connected to described two fusing electrodes 223 respectively.Between the top of the corresponding described two fusing electrodes 223 in a wherein surface of described potsherd 202, be provided with a groove 202a, described low-melting alloy 221 is connected across on this groove 202a just, between a side at a wherein surface of described potsherd 202 and groove 202a and described shell 201 inner corresponding described low-melting alloy 221 places, is filled with the appropriate disconnected agent 222 of fluxing.When the heat transmission of low-melting alloy 221 reception heating units or external environment condition, after melted by heat, 222 surface tension that improve liquid alloys of disconnected agent of fluxing, thus impel low-melting alloy 221 therefrom separated, reach the object of cutting off circuit.
Preferably described shell 201 is provided with under shed as a kind of, and described potsherd 202 has the extension of the under shed below that is positioned at described shell 201, and this extension forms the stretch out carrier of part of described two heating electrodes 212 and two fusing electrodes 223; Between described potsherd 202 and the under shed of described shell 201, adopt epoxy resin 203 to realize sealing.
As a kind of preferred, the top of at least two side of described base 101 is respectively equipped with buckle slot 101a, and the bottom of at least two lateral surfaces of described shell 201 is respectively equipped with wedge shape boss 201a.Specifically, in the present embodiment, at the top of the left and right of base 101 sidewall, buckle slot 101a is set respectively, and the sidewall top, left and right of base 101 extends upward respectively a lug 101c, the buckle slot 101a of the left and right sides of base 101 is arranged at respectively lug 101c just; In the bottom of the left and right of shell 201 lateral surface, wedge shape boss 201a is set respectively equally.Each wedge shape boss 201a of the shell 201 respectively buckle slot 101a corresponding with base 101 forms buckle and connects, and makes shell 201 realize grafting with base 101 and coordinates.
As a kind of preferred, the lug 101c(in the left side of described base 101 can certainly be the lug on right side) the both sides of corresponding its buckle slot 101a of medial surface be respectively equipped with a draw-in groove 101b, the both sides of corresponding its wedge shape boss 201a of left-external side face of shell 201 are respectively equipped with one for the card platform 201b with draw-in groove 101b corresponding matching, each wedge shape boss 201a of described shell 201 is when the buckle slot 101a corresponding with described base 101 forms buckle and connect respectively, and two card platform 201b of described shell 201 snap in respectively the draw-in groove 101b of described base 101 correspondences.Here, the design of card platform 201b and draw-in groove 101b can prevent that circuit breaker 200 is anti-inserted.
Two fusing exits 103 of above-mentioned socket 100 and two heating exits can be pins or mount pin for being electrically connected on the pin part of pcb board.
A kind of plug-in controlled circuit cutter of the present utility model, because its socket 100 is split type with circuit breaker 200, thereby can be in actual applications, socket 100 is pegged graft or is mounted on circuit board, cross high-temperature area, melt tin welding, then can be according to the circuit breaker 200 of the electric current of circuit and temperature requirement selection dimension.Than traditional Thermal Cutoffs, in application, facilitate the automatic insertion of circuit board to produce, improved reliability and the production efficiency of welding.At circuit breaker 200, experience after the fusing-off temperature that ambient temperature reaches low-melting alloy 221, cutoff circuit, changes after circuit breaker 200, detects loop, and circuit can continue normal use again.
As shown in Figure 6, in actual applications, two fusing electrodes 223 are connected to major loop, low-melting alloy 221 is as temperature-sensing element (device), be installed on hot zone, hot zone temperature reaches the fusing-off temperature of low-melting alloy 221, under the effect of the disconnected agent 222 of fluxing, low-melting alloy 221 shrinks to fusing electrode 223 both sides, can passive cutoff circuit; Add heating resistor 211, by two heating electrode 212 access control loops, can form main control unit, receive outside little current signal, once the heating-up temperature of heating resistor 211 reaches the fusing-off temperature of low-melting alloy 221, under the effect of the disconnected agent 222 of fluxing, low-melting alloy 221 is to shrinking to fusing electrode 223 both sides, initiatively cutoff circuits.Thereby the utility model can be used as Thermal Cutoffs in route protection, can be used as again a signal cut point simultaneously, provides more effective, safer protected mode to circuit.
Above-described embodiment is only used for further illustrating a kind of plug-in controlled circuit cutter of the present utility model; but the utility model is not limited to embodiment; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all fall in the protection range of technical solutions of the utility model.
Claims (12)
1. a plug-in controlled circuit cutter, is characterized in that: comprise socket and circuit breaker; Socket comprises base, is located at the two fusing exits that base also can be electrically connected on pcb board, and circuit breaker comprises shell, is located at the temperature fusing unit of shell, and the two fusing electrodes that are electrically connected to temperature fusing unit; The shell of circuit breaker coordinates by grafting with the base of socket, makes its two fusing electrode corresponding with two fusing exits of socket, and forms electrical connection.
2. plug-in controlled circuit cutter according to claim 1, it is characterized in that: described circuit breaker also comprises potsherd, this potsherd is installed in described shell, described two fusing electrodes are located at a wherein surface of potsherd, and described two fusing electrodes extend to respectively outside described shell.
3. plug-in controlled circuit cutter according to claim 2, is characterized in that: described circuit breaker also comprises heating unit and two heating electrodes, and described socket also comprises the two heating exits of being located at described base; Two heating electrodes are located at another surface of potsherd, and heating unit is positioned at described shell, and its two ends are electrically connected to two heating electrodes respectively, and two heating electrodes extend to outside described shell along the outward extending direction of described two fusing electrode respectively; Described shell coordinates by grafting with described base, also makes two heating electrodes corresponding with two heating exits of described socket, and forms electrical connection.
4. plug-in controlled circuit cutter according to claim 2, is characterized in that: described temperature fusing unit comprises low-melting alloy, and the two ends of this low-melting alloy are electrically connected to described two fusing electrodes respectively.
5. plug-in controlled circuit cutter according to claim 4, it is characterized in that: between the corresponding described two fusing electrodes in a wherein surface of described potsherd, be provided with a groove, described low-melting alloy is connected across on this groove, between a side at a wherein surface of described potsherd and groove and the corresponding described low-melting alloy of described enclosure place, is filled with the disconnected agent of fluxing.
6. plug-in controlled circuit cutter according to claim 3, it is characterized in that: described heating unit is located at another surface of described potsherd, or, described heating unit and described potsherd are integral by high temperature sintering, and be placed in the middle of described potsherd, described heating electrode exposes to described potsherd.
7. plug-in controlled circuit cutter according to claim 3, is characterized in that: described heating unit comprises heating resistor.
8. plug-in controlled circuit cutter according to claim 7, is characterized in that: described heating resistor is one of them of fixed carbon resister, metalfilmresistor, thick-film resistor.
9. plug-in controlled circuit cutter according to claim 3, it is characterized in that: described shell is provided with under shed, described potsherd has the extension of the under shed below that is positioned at described shell, and this extension forms the stretch out carrier of part of described two heating electrodes and two fusing electrodes; Between described potsherd and the under shed of described shell, adopt epoxy resin to realize sealing.
10. plug-in controlled circuit cutter according to claim 1, it is characterized in that: the top of at least two side of described base is respectively equipped with buckle slot, the bottom of at least two lateral surfaces of described shell is respectively equipped with wedge shape boss, each wedge shape boss of described shell the respectively buckle slot corresponding with described base forms buckle and connects, and makes described shell and described base realize grafting and coordinates.
11. plug-in controlled circuit cutters according to claim 10, is characterized in that: the top, at least two side of described base extends upward respectively a lug, and each buckle slot of described base is located at respectively lug.
12. plug-in controlled circuit cutters according to claim 11, it is characterized in that: the both sides of corresponding its buckle slot of medial surface of a wherein lug of described base are respectively equipped with a draw-in groove, the both sides of corresponding its wedge shape boss of a wherein lateral surface of described shell are respectively equipped with one for the Ka Tai with draw-in groove corresponding matching, each wedge shape boss of described shell is when the buckle slot corresponding with described base forms buckle and connect respectively, and two Ka Tai of described shell snap in respectively the draw-in groove that described base is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127656.5U CN203826324U (en) | 2014-03-20 | 2014-03-20 | Pluggable controlled circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127656.5U CN203826324U (en) | 2014-03-20 | 2014-03-20 | Pluggable controlled circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826324U true CN203826324U (en) | 2014-09-10 |
Family
ID=51481795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420127656.5U Expired - Lifetime CN203826324U (en) | 2014-03-20 | 2014-03-20 | Pluggable controlled circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548903A (en) * | 2017-01-19 | 2017-03-29 | 上海长园维安电子线路保护有限公司 | Combination type can be through reflow soldering temperature fuse |
| CN111613492A (en) * | 2020-05-28 | 2020-09-01 | 南京萨特科技发展有限公司 | Replaceable low-voltage fuse |
-
2014
- 2014-03-20 CN CN201420127656.5U patent/CN203826324U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548903A (en) * | 2017-01-19 | 2017-03-29 | 上海长园维安电子线路保护有限公司 | Combination type can be through reflow soldering temperature fuse |
| CN111613492A (en) * | 2020-05-28 | 2020-09-01 | 南京萨特科技发展有限公司 | Replaceable low-voltage fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |