CN102426748B - Residual current type electrical fire monitoring device - Google Patents
Residual current type electrical fire monitoring device Download PDFInfo
- Publication number
- CN102426748B CN102426748B CN201110248185.4A CN201110248185A CN102426748B CN 102426748 B CN102426748 B CN 102426748B CN 201110248185 A CN201110248185 A CN 201110248185A CN 102426748 B CN102426748 B CN 102426748B
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- China
- Prior art keywords
- current
- sampling
- zero sequence
- mutual inductor
- electrical fire
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- Expired - Fee Related
Links
- 238000012806 monitoring device Methods 0.000 title abstract description 11
- 238000005070 sampling Methods 0.000 claims abstract description 65
- 238000009413 insulation Methods 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 210000000569 greater omentum Anatomy 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 239000002360 explosive Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The invention discloses a residual current type electrical fire monitoring device comprising a shell, a control circuit board and an electric inlet terminal assembly and an electric outlet terminal assembly which are arranged in the shell, as well as a liquid crystal display screen and a button switch which are arranged on the shell, wherein the shell is also provided with a current sampling device, the two side ends of the current sampling device are provided with limiting plates, and limiting slots matched with the limiting plates are also arranged on the inner wall of the shell. Compared with the traditional residual current type electrical fire monitoring and detecting device, the residual current type electrical fire monitoring device disclosed by the invention has the advantages that a connecting terminal assembly and a connecting manner of a moulded case circuit breaker are fully utilized, more connecting wires can be saved, fussy wiring operation is eliminated, the structure of the residual current type electrical fire monitoring device is more compact and reasonable, the occupied space is smaller, and the overall manufacturing cost can be effectively reduced.
Description
Technical field
The invention belongs to fire monitor technical field, be specifically related to a kind of residual-current electrical fire monitor.
Background technology
Residual-current electrical fire monitor is a kind of important on-site terminal device that gathers numerous electric disaster hidden-trouble information, its function mainly contains residual current detection and reports to the police and realize microcomputer Long-distance Control etc. by configuration software, applicable to the complex circuit such as the high place of electrical fire incidence, bulk storage plant, office, commercial building, hotel, house and recreation place and the higher occasion of reliability, security, requirement on flexibility to power supply.
Common residual-current electrical fire monitor comprises shell body and is installed separately independently of one another the isolating switch in shell body in the market, zero-sequence transformer, residual current control module, network communication module, described isolating switch is traditional breaker of plastic casing, described zero-sequence transformer and conventional circuit breaker are in series, described residual current control module is arranged on conventional circuit breaker around, residual current to zero-sequence transformer sampling is processed, comprise calculating, show etc., described network communication module is connected with residual current control module, the signal that residual current control module was processed transmits and communicates by letter with host computer.
Patent documentation CN201698556U discloses a kind of residual current type detector for electric fire protection, its structure is made up of residual current circuit breaker, current transformer, wiring board, base, upper cover, button, residual current circuit breaker is contained on the support on base the right, wiring board base plate is placed in the base left side, wiring board panel is inserted on base plate, current transformer is inserted in residual current circuit breaker bottom, and it is drawn winding displacement and is inserted on the socket of wiring board panel; Phase insulating board is inserted in residual current circuit breaker upper end; Indicator light wire board, liquid crystal display, button wiring board are contained in and cover, and above cover line clamp is set.This kind of structure exists structure comparatively complicated, and larger weak point takes up room.
Summary of the invention
The object of this invention is to provide a kind of structure comparatively rationally compact, less residual-current electrical fire monitor takes up room.
The technical scheme that realizes the object of the invention is: a kind of residual-current electrical fire monitor, comprise housing, and be arranged on control circuit board, current enter sub-component and current output terminal sub-component in housing, be arranged on LCDs and pushbutton switch on housing; Described housing is also provided with current sampling device, and the two side ends of described current sampling device is provided with limiting plate, is also provided with the stopper slot matching with this limiting plate in described inner walls.
In technique scheme, described control circuit board is provided with controller terminal block, and described controller terminal block is provided with patch jack and compresses the fastener hole of wiring for turn trip bolt, and described patch jack exposes the housing of electrical fire monitor; Described housing is provided with the insulating sealer for shutoff controller terminal block fastener hole.
In technique scheme, described electrical fire monitor housing is provided with connecting groove, and the fastener hole of described controller terminal block is just to described connecting groove setting, and described insulating sealer is fixed in connecting groove.
In technique scheme, described current sampling device comprises a zero sequence current mutual inductor and three sampling current transformers; Described each sampling current transformer comprises insulation shell, iron core and coil; Described zero sequence current mutual inductor comprises insulation shell, iron core and coil; Each sampling current transformer insulation shell center is provided with a sleeve pipe and is positioned at the square shape storage tank of outside of sleeve, and its iron core and coil are arranged in storage tank; Described zero sequence current mutual inductor insulation shell is provided with storage tank and is arranged in two short sleeve pipes and two high sleeve pipes of storage tank, and its iron core and coil are arranged in storage tank, and each sleeve pipe is all arranged in vestibule unshakable in one's determination; Described short sleeve pipe is lower than zero sequence current mutual inductor insulation shell, and described high sleeve pipe exceeds zero sequence current mutual inductor insulation shell, and described short sleeve pipe and high sleeve pipe interval arrange; First and second sampling current transformer are set on two high sleeve pipes of zero sequence current mutual inductor by self overlapping tube side-by-side, the 3rd sampling current transformer is positioned at the side of two sampling current transformers away from zero sequence current mutual inductor, and this this two sampling current transformers are pressed on zero sequence current mutual inductor.
In technique scheme, first and second sampling current transformer be side away from zero sequence current mutual inductor at it, is respectively provided with the positive stop lug boss of a protrusion, and is combined into and forms a draw-in groove; Described the 3rd sampling current transformer is embedded in this draw-in groove.
In technique scheme, described three sampling current transformers are lined up isosceles triangle.
In technique scheme, at it, the side away from sampling current transformer is provided with flange as limiting plate to described zero sequence current mutual inductor, and at it, the side away from zero sequence current mutual inductor is also provided with flange as limiting plate to described the 3rd sampling current transformer; Described iron core and coil are fixed in corresponding storage tank by plastic packaging mode.
In technique scheme, the conducting copper in each current enter sub-component is successively through zero sequence current mutual inductor sleeve pipe and sampling current transformer sleeve pipe.
In technique scheme, the top of described current sampling device is provided with screw, and described control circuit board is fixed on current sampling device top by the screw matching with this screw.
In technique scheme, the roof of described sampling current transformer insulation shell and zero sequence current mutual inductor insulation shell is provided with boss, is provided with the metal nut that possesses screw in described boss, and described metal nut is embedded in boss by injection molding.
In technique scheme, described each current enter sub-component comprises and is provided with the insulating base of blind hole, the trip bolt that is provided with the metal caul of screw and matches with screw on metal caul; Described insulating base is provided with chute, and described metal caul can slide along chute, and the screw on described metal caul is just to the blind hole setting on insulating base; Described insulating base is fixed on housing.
In technique scheme, described housing is provided with locator card platform, and described insulating base is provided with the locating groove matching with this locator card platform, and described insulating base is fixed on housing by snap fit.
In technique scheme, the diapire of described metal caul be provided with protrusion for preventing the anticreep boss of metal caul from chute slippage, described anticreep boss is arranged in the blind hole of insulating base.
The present invention has positive effect: (1) the present invention is compared with traditional residual current type detector for electric fire protection, make full use of connecting terminal components and the mode of connection that breaker of plastic casing self has, can save more connecting line, also saved loaded down with trivial details wiring operations, comparatively compact and reasonable of its structure, take up room less, can effectively reduce overall manufacturing cost.
Brief description of the drawings
Fig. 1 is a kind of perspective view of the present invention;
Fig. 2 is a kind of perspective view of current sampling device in residual-current electrical fire monitor shown in Fig. 1;
Fig. 3 is a kind of explosive view of current sampling device shown in Fig. 2;
Fig. 4 is a kind of explosive view of electric fire monitoring device shown in Fig. 1;
Fig. 5 is a kind of perspective view of electric fire monitoring device middle shell shown in Fig. 1;
Fig. 6 is a kind of perspective view of current enter sub-component in electric fire monitoring device shown in Fig. 1;
Fig. 7 is a kind of cut-open view of current enter sub-component shown in Fig. 6.
Shown in accompanying drawing, be labeled as: current sampling device 1, limiting plate 11, connecting groove 13, current enter sub-component 21, conducting copper 211, current output terminal sub-component 22, housing 23, stopper slot 231, locator card platform 232, control circuit board 24, LCDs 25, pushbutton switch 26, controller terminal block 27, patch jack 271, fastener hole 272, insulating sealer 28, sampling current transformer 3, insulation shell 32, sleeve pipe 33, storage tank 34, positive stop lug boss 35, zero sequence current mutual inductor 4, insulation shell 41, storage tank 42, short sleeve pipe 43, high sleeve pipe 44, screw 5, boss 51, metal nut 52, insulating base 61, blind hole 611, chute 612, locating groove 613, metal caul 62, screw 621, anticreep boss 622, trip bolt 63.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 7 has shown a kind of embodiment of the present invention, and wherein Fig. 1 is a kind of perspective view of the present invention; Fig. 2 is a kind of perspective view of current sampling device in residual-current electrical fire monitor shown in Fig. 1; Fig. 3 is a kind of explosive view of current sampling device shown in Fig. 2; Fig. 4 is a kind of explosive view of electric fire monitoring device shown in Fig. 1; Fig. 5 is a kind of perspective view of electric fire monitoring device middle shell shown in Fig. 1; Fig. 6 is a kind of perspective view of current enter sub-component in electric fire monitoring device shown in Fig. 1; Fig. 7 is a kind of cut-open view of current enter sub-component shown in Fig. 6.
The present embodiment is a kind of residual-current electrical fire monitor, see shown in Fig. 1 to Fig. 7, comprise housing 23, be arranged on control circuit board 24, current enter sub-component 21 and current output terminal sub-component 22 in housing 23, be arranged on LCDs 25 and pushbutton switch 26 on housing 23; It is characterized in that: described housing 23 is also provided with current sampling device 1, and the two side ends of described current sampling device 1 is provided with limiting plate 11, on described housing 23 inwalls, be also provided with the stopper slot 231 matching with this limiting plate 11.
Described control circuit board is provided with controller terminal block 27, and described controller terminal block 27 is provided with patch jack 271 and compresses the fastener hole 272 of wiring for turn trip bolt, and described patch jack 271 exposes housing 23; Described housing 23 is provided with the insulating sealer 28 for shutoff controller terminal block 27 fastener holes 272.Described electric fire monitoring device housing 23 is provided with connecting groove 13, and the fastener hole 272 of described controller terminal block 27 just arranges described connecting groove 13, and described insulating sealer 28 is fixed in connecting groove 13.
Described current sampling device 1 comprises a zero sequence current mutual inductor 4 and three sampling current transformers 3; Described each sampling current transformer 3 comprises insulation shell 32, iron core and coil; Described zero sequence current mutual inductor 4 comprises insulation shell 41, iron core and coil; Each sampling current transformer insulation shell 32 centers are provided with a sleeve pipe 33 and are positioned at the square shape storage tank 34 in sleeve pipe 33 outsides, and its iron core and coil are arranged in storage tank 34; Described zero sequence current mutual inductor insulation shell 41 is provided with storage tank 42 and is arranged in two short sleeve pipes 43 and two high sleeve pipes 44 of storage tank 42, and its iron core and coil are arranged in storage tank 42, and each sleeve pipe is all arranged in vestibule unshakable in one's determination; Described short sleeve pipe 43 is lower than zero sequence current mutual inductor insulation shell 41, and described high sleeve pipe 44 exceeds zero sequence current mutual inductor insulation shell 41, and described short sleeve pipe 43 and high sleeve pipe 44 intervals arrange; First and second sampling current transformer 3 are set on two high sleeve pipes 44 of zero sequence current mutual inductor 4 side by side by self sleeve pipe 33, the 3rd sampling current transformer 3 is positioned at the side of these two sampling current transformers 3 away from zero sequence current mutual inductor 4, and this this two sampling current transformers 3 are pressed on zero sequence current mutual inductor 4.Described three sampling current transformers 3 are lined up isosceles triangle.
First and second sampling current transformer 3 be side away from zero sequence current mutual inductor 4 at it, is respectively provided with the positive stop lug boss 35 of a protrusion, and is combined into and forms a draw-in groove; Described the 3rd sampling current transformer 3 is embedded in this draw-in groove.
At it, the side away from sampling current transformer 3 is provided with flange as limiting plate 11 to described zero sequence current mutual inductor 4, and at it, the side away from zero sequence current mutual inductor 4 is also provided with flange as limiting plate 11 to described the 3rd sampling current transformer 3; Described iron core and coil are fixed in corresponding storage tank by plastic packaging mode.
Each current enter sub-component, the conducting copper 211 in 21 is successively through zero sequence current mutual inductor sleeve pipe and sampling current transformer sleeve pipe.
The roof of described sampling current transformer housing 32 and zero sequence current mutual inductor housing 41 is provided with boss 51, is provided with the metal nut 52 that possesses screw 5 in described boss 51, and described metal nut 52 is embedded in boss 51 by injection molding; Described control circuit board 24 is fixed on current sampling device 1 top by the screw matching with this screw 5.
Described each current enter sub-component 21 comprises and is provided with the insulating base 61 of blind hole 611, the trip bolt 63 that is provided with the metal caul 62 of screw 621 and matches with screw on metal caul 621; Described insulating base 61 is provided with chute 612, and described metal caul 62 can slide along chute 612, and the screw 621 on described metal caul 62 just arranges the blind hole 611 on insulating base 61; Described insulating base 61 is fixed on housing 23.
Described housing 23 is provided with locator card platform 232, and described insulating base 61 is provided with the locating groove 613 matching with this locator card platform 232, and described insulating base 61 is fixed on housing 23 by snap fit.
On the diapire of described metal caul 62, be also provided with protrusion for preventing the anticreep boss 622 of metal caul 62 from chute 612 slippages, described anticreep boss 622 stretches in the blind hole 611 of insulating base.
This kind of terminal assemblies in use, first pushes metal caul in the chute of insulating base, then conducting copper 211 is screwed on metal caul, then insulating base is stuck on the locator card platform 232 of housing.
The present embodiment is compared with traditional residual current type detector for electric fire protection, make full use of connecting terminal components and the mode of connection that breaker of plastic casing self has, can save more connecting line, also saved loaded down with trivial details wiring operations, comparatively compact and reasonable of its structure, take up room less, can effectively reduce overall manufacturing cost.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And these belong to apparent variation or the variation that connotation of the present invention extends out and still belong to protection scope of the present invention.
Claims (9)
1. a residual-current electrical fire monitor, comprise housing (23), be arranged on control circuit board (24), current enter sub-component (21) and current output terminal sub-component (22) in housing (23), be arranged on LCDs (25) and pushbutton switch (26) on housing (23); It is characterized in that: described housing (23) is also provided with current sampling device (1), the two side ends of described current sampling device (1) is provided with limiting plate (11), is also provided with the stopper slot (231) matching with this limiting plate (11) on described housing (23) inwall; Described current sampling device comprises a zero sequence current mutual inductor (4) and three sampling current transformers (3); Described each sampling current transformer (3) comprises insulation shell (32), iron core and coil; Described zero sequence current mutual inductor (4) comprises insulation shell (41), iron core and coil; Each sampling current transformer insulation shell (32) center is provided with a sleeve pipe (33) and is positioned at the square shape storage tank (34) in sleeve pipe (33) outside, and its iron core and coil are arranged in storage tank (34); Described zero sequence current mutual inductor insulation shell (41) is provided with storage tank (42) and is arranged in two short sleeve pipes (43) and two high sleeve pipes (44) of storage tank (42), the iron core of zero sequence current mutual inductor and coil are arranged in storage tank (42), and each sleeve pipe is all arranged in vestibule unshakable in one's determination; Described short sleeve pipe (43) is lower than zero sequence current mutual inductor insulation shell (41), described high sleeve pipe (44) exceeds zero sequence current mutual inductor insulation shell (41), and described short sleeve pipe (43) and high sleeve pipe (44) interval arrange; First and second sampling current transformer (3) are set on the high sleeve pipes of two zero sequence current mutual inductors (4) (44) side by side by self sleeve pipe (33), the 3rd sampling current transformer (3) is positioned at the side of two sampling current transformers (3) away from zero sequence current mutual inductor (4), and these two sampling current transformers (3) are pressed on zero sequence current mutual inductor (4).
2. residual-current electrical fire monitor according to claim 1, it is characterized in that: described control circuit board is provided with controller terminal block (27), described controller terminal block (27) is provided with patch jack (271) and compresses the fastener hole (272) of wiring for turn trip bolt, and described patch jack (271) exposes housing (23); The housing (23) of described electrical fire monitor is provided with the insulating sealer (28) for shutoff controller terminal block (27) fastener hole (272).
3. residual-current electrical fire monitor according to claim 2, it is characterized in that: described electrical fire monitor housing (23) is provided with connecting groove (13), the fastener hole (272) of described controller terminal block (27) just arranges described connecting groove (13), and described insulating sealer (28) is fixed in connecting groove (13).
4. residual-current electrical fire monitor according to claim 1, it is characterized in that: first and second sampling current transformer (3) be side away from zero sequence current mutual inductor (4) at it, respectively be provided with the positive stop lug boss (35) of a protrusion, and be combined into a draw-in groove of formation; Described the 3rd sampling current transformer (3) is embedded in this draw-in groove.
5. residual-current electrical fire monitor according to claim 4, is characterized in that: described three sampling current transformers (3) are lined up isosceles triangle.
6. residual-current electrical fire monitor according to claim 5, it is characterized in that: at it, the side away from sampling current transformer (3) is provided with flange as limiting plate (11) to described zero sequence current mutual inductor (4), at it, the side away from zero sequence current mutual inductor (4) is also provided with flange as limiting plate (11) to described the 3rd sampling current transformer (3); The iron core of described zero sequence current mutual inductor and coil are fixed in corresponding storage tank by plastic packaging mode.
7. residual-current electrical fire monitor according to claim 5, is characterized in that: the conducting copper (211) in each current enter sub-component (21) is successively through zero sequence current mutual inductor sleeve pipe and sampling current transformer sleeve pipe.
8. residual-current electrical fire monitor according to claim 4, it is characterized in that: the top of described current sampling device (1) is provided with screw (5), described control circuit board (24) is fixed on current sampling device (1) top by the screw matching with this screw (5).
9. residual-current electrical fire monitor according to claim 8, it is characterized in that: the roof of described sampling current transformer insulation shell (32) and zero sequence current mutual inductor insulation shell (41) is provided with boss (51), in described boss (51), be provided with the possess screw metal nut (52) of (5), described metal nut (52) is embedded in boss (51) by injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110248185.4A CN102426748B (en) | 2011-08-26 | 2011-08-26 | Residual current type electrical fire monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110248185.4A CN102426748B (en) | 2011-08-26 | 2011-08-26 | Residual current type electrical fire monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102426748A CN102426748A (en) | 2012-04-25 |
| CN102426748B true CN102426748B (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110248185.4A Expired - Fee Related CN102426748B (en) | 2011-08-26 | 2011-08-26 | Residual current type electrical fire monitoring device |
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| Country | Link |
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| CN (1) | CN102426748B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914281Y (en) * | 2006-06-29 | 2007-06-20 | 丁文军 | Current transformator |
| CN201278339Y (en) * | 2008-03-07 | 2009-07-22 | 苏州飞腾电器有限公司 | Load limiting intelligent circuit breaker |
| CN201465932U (en) * | 2009-05-06 | 2010-05-12 | 浙江大华开关厂 | Intelligent moulded case circuit breaker |
| CN201717216U (en) * | 2010-07-08 | 2011-01-19 | 江苏淮阴苏益电器有限公司 | Residual current circuit breaker integrating reclosing device with casing |
| CN202205316U (en) * | 2011-08-26 | 2012-04-25 | 浙江索德科技有限公司 | Residual current type electrical fire hazard monitor |
-
2011
- 2011-08-26 CN CN201110248185.4A patent/CN102426748B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914281Y (en) * | 2006-06-29 | 2007-06-20 | 丁文军 | Current transformator |
| CN201278339Y (en) * | 2008-03-07 | 2009-07-22 | 苏州飞腾电器有限公司 | Load limiting intelligent circuit breaker |
| CN201465932U (en) * | 2009-05-06 | 2010-05-12 | 浙江大华开关厂 | Intelligent moulded case circuit breaker |
| CN201717216U (en) * | 2010-07-08 | 2011-01-19 | 江苏淮阴苏益电器有限公司 | Residual current circuit breaker integrating reclosing device with casing |
| CN202205316U (en) * | 2011-08-26 | 2012-04-25 | 浙江索德科技有限公司 | Residual current type electrical fire hazard monitor |
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| Publication number | Publication date |
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| CN102426748A (en) | 2012-04-25 |
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