CN203632150U - Concealed-type metal conjunction box with current monitor - Google Patents
Concealed-type metal conjunction box with current monitor Download PDFInfo
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- CN203632150U CN203632150U CN201320724159.9U CN201320724159U CN203632150U CN 203632150 U CN203632150 U CN 203632150U CN 201320724159 U CN201320724159 U CN 201320724159U CN 203632150 U CN203632150 U CN 203632150U
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- type metal
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- metal case
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Abstract
The utility model discloses a concealed-type metal conjunction box with a current monitor. The concealed-type metal conjunction box with the current monitor is used for connecting a commercial power line with a switch socket. The concealed-type metal conjunction box comprises a metal box body and the current monitor. The four side surfaces and the bottom surface of the metal box body are all provided with multiple first wire-through holes. The current monitor comprises a housing movably installed on a side surface of the metal box body, a Hall current sensor penetrated through by the commercial power line and used for detecting the current the city power line, a transmitter connected with the Hall current sensor, an A/D converter connected with the transmitter, a single-chip microcomputer connected with the A/D converter, a drive circuit connected with the one-chip microcomputer and a relay connected between the commercial power line and the switch socket. The relay is also connected with the drive circuit, and the drive circuit controls the switching-on and switching-off of the relay. The concealed-type metal conjunction box with the current monitor of the present invention has the beneficial effects that connection and disconnection of lines are controlled according to current changes of the commercial power line in the metal box body, so that leads in the metal box and electrical appliances connected to the switch socket are protected.
Description
Technical field
The utility model relates to a kind of terminal box of electric appliance component, particularly relates to a kind of conceal-mounted type metal junction box of belt current watch-dog.
Background technology
In building industry, mostly terminal box is embedded in cast-in-place or prefabricated wall or floor to realize concealed wire connection or electric switch or other assembly.But circuit is in use, when can running into multiple electrical equipment, use, so usually can make line-internal electric current excessive, thereby terminal box inner lead power is excessive, conductive line surfaces temperature is sharply increased.Because there is multistage circuit terminal box inside, the watchcase of wire can melt after temperature increases, and makes line short, occurs naked light, burns to switch and building, causes fiery residence.In the time that electric current is excessive, also the electrical equipment that is connected in combined socket and switch can be burnt out, can cause like this waste of resource.Simultaneously, in use, building or other objects can push terminal box, terminal box is easily out of shape, and affects the trace arrangements in terminal box, thereby can cause line short, also there will be the over-current phenomenon avoidance of city's power line, at this moment disconnect timely city's power line, make the circuit of terminal box inside in open-circuit condition, be very important.
Summary of the invention
The technical problem that the utility model mainly solves is to provide a kind of conceal-mounted type metal junction box of belt current watch-dog; can be according to the variation of metal case inside city power lead current; the connection of control circuit, with the electrical equipment of protecting metal case inside conductor and combined socket and switch to connect.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the conceal-mounted type metal junction box that a kind of belt current watch-dog is provided, be used for being communicated with city's power line and combined socket and switch, described conceal-mounted type metal junction box comprises metal case, four sides and the bottom surface of described metal case are provided with several the first through wires holes, also comprise:
Electric current monitor, described electric current monitor comprises:
Shell, described shell is movably installed on a side of metal case;
The Hall current sensor being connected with city's power line, for detection of electric current the output AC voltage signal of city's power line;
The transmitter being connected with Hall current sensor, receives the ac voltage signal detecting from Hall current sensor, and the ac voltage signal receiving is converted into DC simulation signal;
The A/D converter being connected with transmitter, becomes digital signal by the DC simulation signal from transmitter;
The single-chip microcomputer being connected with A/D converter, receive the digital signal exported of A/D converter, and export the first control signal at received digital signal during higher than the first preset value and export the second control signal at received digital signal during lower than the second preset value;
The drive circuit being connected with single-chip microcomputer, receives the first control signal/the second control signal from single-chip microcomputer; And
Be connected in the relay between city's power line and combined socket and switch, described relay is also connected with drive circuit, in the time that drive circuit receives the first control signal from single-chip microcomputer, described drive circuit control relay disconnects, in the time that drive circuit receives the second control signal from single-chip microcomputer, described drive circuit control relay closure.
Further, described Hall current sensor is ACS758 model chip.
Further, described electric current monitor also comprises siren, and described siren is arranged on the surface of shell and is connected with single-chip microcomputer.
Further, described siren is LED lamp.
Further, described metal case internal activity is provided with somely climbs for the ear fixing with the panel of combined socket and switch, and described ear is climbed up and is provided with installing hole.
Further, be fixedly installed fin in the end of described metal case, described fin and metal case form chute, and described fin slides and is arranged in chute.
Further, in described metal case and be positioned at that ear climbs below be provided with the second through wires hole.
Further, described the second through wires hole is semicircle.
Further, on the side of described metal case, be provided with reinforcement.
Further, described reinforcement is strip, and described reinforcement is inside or outwardly forming by metal case.
The conceal-mounted type metal junction box of the utility model belt current watch-dog; electric current monitor is installed in metal case; by bracing frame, electric current monitor is arranged in metallic wiring box; Real-Time Monitoring flows through the electric current of city's power line; both realized the function of the joint of protection switch socket and city's power line, and also strengthened the intensity of metal case and realized the function of protection metal case inside conductor.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the preferred embodiments of the conceal-mounted type metal junction box of this practical belt current watch-dog.
Fig. 2 is the structured flowchart of electric current monitor in Fig. 1.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is elaborated.
For ease of the operation principle of the follow-up conceal-mounted type metal junction box that can better describe the utility model belt current watch-dog, first Hall current sensor is simply described:
Hall current sensor, utilize the rear principle that produces magnetic field around of wire energising, arranging one is wrapped in the magnet ring of wire to be measured and hall device is arranged in magnet ring, the magnetic field that magnet ring produces the wire after energising accumulates on hall device, the formation main field circuit thereby hall device is connected with amplifier.Be wound in the secondary coil on magnet ring, the magnetic field that secondary coil produces is contrary with the magnetic field that wire to be measured produces, thereby reaches magnetic balance state.When balance, hall device is in zero magnetic flux state.Once unbalance with time magnetic field when main field, hall device just has signal output, thereby the variation that records the electric current of wire.
Please refer to shown in Fig. 1, the conceal-mounted type metal junction box of the utility model belt current watch-dog, comprises metal case 1 and electric current monitor 2.
Particularly, on four sides of metal case 1 and bottom surface, be provided with several the first through wires holes 13.The internal activity of metal case 1 be provided with can be fixing with switch jack panel ear climb 11.Be flexibly connected with metal case 1 in order to allow ear climb 11, being fixedly connected with of convenient and combined socket and switch, is fixedly installed fin 14 in the end of described metal case 1, and described fin 14 forms chute with metal case 1, and described ear is climbed 11 slips and is arranged in chute.Described ear climbs 11 four, is provided with an ear and climbs 11 on each medial surface of described metal case 1, and described ear is climbed and on 11, is provided with installing hole.In described metal case 1 and be positioned at ear climb 11 below be provided with the second through wires hole 12, described the second through wires hole 12 is semicircle.In the present embodiment, on four sides of described metal case 1, be provided with reinforcement 3, described reinforcement 3 is strip, and described reinforcement 3 is formed to projecting inward by metal case 1, be understandable that, this reinforcement 3 also can form by metal case 1 is outwardly.The effect of this reinforcement 3 is the intensity that strengthens metal case 1, prevents metal case 1 crimp.
Please refer to shown in Fig. 2, described electric current monitor 2, comprises siren 21, shell 22, relay 23, drive circuit 24, single-chip microcomputer 25, A/D converter 26, transmitter 27 and Hall current sensor 28.Described shell 22 is installed on a side of metal case 1, and described siren 21 is arranged on the surface of shell 22, and in the present embodiment, siren 21 is LED lamp.Described relay 23, drive circuit 24, single-chip microcomputer 25, A/D converter 26, transmitter 27 and Hall current sensor 28 are installed in shell 22.Described shell 22 is that insulation material is made, and is provided with the 3rd through wires hole 221 on described shell 22.City's power line is electrically connected by relay 23 with combined socket and switch, and described relay 23 is for controlling the be communicated with/disconnection of city's power line and combined socket and switch.Described relay 23 is electrically connected with drive circuit 24, described drive circuit 24 is electrically connected with single-chip microcomputer 25, described A/D converter 26 is electrically connected with single-chip microcomputer 25, described converter 27 is electrically connected with A/D converter 26, described converter 27 is electrically connected with Hall current sensor 28, and described Hall current sensor 28Bei city power line passes.This Hall current sensor 28 sends transmitter 27 to by the current value of city's power line and by the real-time current value detecting in real time for monitoring, described transmitter 27 is for the alternating current flow valuve receiving being converted to the DC current values of A/D converter 26 needed scopes, described A/D converter 26 for convert the alternating current flow valuve of simulation to digital signal and by the digital signal transfers obtaining to single-chip microcomputer 25.Described single-chip microcomputer 25 is exported the first control signal during higher than the first preset value and is exported the second control signal at received digital signal during lower than the second preset value at received digital signal.Described drive circuit 24 is connected with single-chip microcomputer 25, for receiving the first control signal or the second control signal from single-chip microcomputer 25.Described relay 23 is connected between city's power line and combined socket and switch, described relay 23 is also connected with drive circuit 24, in the time that drive circuit 24 receives the first control signal from single-chip microcomputer 25, described drive circuit 24 control relays 23 disconnect, and make civil power source line and combined socket and switch disconnect; In the time that drive circuit 24 receives the second control signal from single-chip microcomputer 25, described drive circuit 25 control relays 23 close, and make civil power source line and combined socket and switch close.In the present embodiment, Hall current sensor 28 is ACS758 model chip.
Generally, electric current monitor 2 is fixed on a side of metal case 1 by shell 22.The diameter of described the second through wires hole 12 and the first through wires hole 13 is different large, can pass for the wire of different-diameter.The diameter of described the 3rd through wires hole 22 is enough large, can pass for the wire of different-diameter.And described the 3rd through wires hole 22 is oval, can allow like this wire easily through the 3rd through wires hole 22.
The utility model in use, first, by the second through wires hole 12 or the first through wires hole 13 in metal case 1, enters city's power line in metal case 1.Afterwards, enter three through wires hole 221 of metal case 1 Nei city power line through the shell 22 in metal case 1, city's power line enters in shell 22.Enter shell 22Nei city power line through Hall current sensor 28, city's power line is connected with one end of relay 23.Then, combined socket and switch is connected with the other end of relay 23 by the 3rd through wires hole 221.The installing hole of finally, combined socket and switch being climbed on 11 by ear is fixedly connected with metal case 1.
After installing, in the process of use combined socket and switch, electric current passes through wire, wire produces heat, the conceal-mounted type metal junction box of this belt current watch-dog is arranged in building, and the wire of the inside is not easy dissipation of heat in confined space, the accumulation of heat in metal case 1.Hall current sensor 28 gathers the real-time current value in metal case 1, the ac current signal collecting is passed to transmitter 27 by Hall current sensor 28, transmitter 27 is to converting the ac current signal receiving to the DC current signal of A/D converter 26 received current scopes, A/D converter 26 carries out analog-to-digital conversion, output digit signals to DC current signal again.Single-chip microcomputer 25 receives the digital signal from A/D converter 26, if the digital signal collecting is higher than the first preset value of single-chip microcomputer 25, single-chip microcomputer 25 is exported a control signal immediately to drive circuit 24, under the effect of drive circuit 24, relay 23 moves, the interior combined socket and switch of cut-out metal case 1 is connected with city's power line, while allowing whole circuit break-off, Ji Dang city power line occur overcurrent reaction, cut off circuit, the running of halt circuit.Heat in metal case 1 starts to reduce, the ac current signal collecting when Hall current sensor 28, this ac current signal becomes digital signal after the processing of transmitter 27 and A/D converter 26, single-chip microcomputer 25 receiving digital signals, when the digital signal receiving is during lower than the second preset value in single-chip microcomputer 25, single-chip microcomputer 25 another control signals of output are to drive circuit 24, under the effect of drive circuit 24, relay 23 moves, and the interior combined socket and switch of closed metal case 1 is connected with city's power line.Thereby reach the object of protection metal case 1 inside conductor.
Feature of the present utility model: the conceal-mounted type metal junction box of this belt current watch-dog; adopt electric current monitor 2; both realized the protection being connected of Liao Dui city power line and combined socket and switch, and realized again the protection of protection to metal case 1, metal case 1 inner lead and be connected in the protection of the electrical equipment of combined socket and switch.
These are only execution mode of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. the conceal-mounted type metal junction box of a belt current watch-dog, be used for being communicated with city's power line and combined socket and switch, described conceal-mounted type metal junction box comprises metal case, and four sides and the bottom surface of described metal case are provided with several the first through wires holes, it is characterized in that, also comprise:
Electric current monitor, described electric current monitor comprises:
Shell, described shell is movably installed on a side of metal case;
The Hall current sensor being connected with city's power line, for detection of electric current the output AC voltage signal of city's power line;
The transmitter being connected with Hall current sensor, receives the ac voltage signal detecting from Hall current sensor, and converts the ac voltage signal receiving to DC simulation signal;
The A/D converter being connected with transmitter, becomes digital signal by the DC simulation signal from transmitter;
The single-chip microcomputer being connected with A/D converter, receive the digital signal exported of A/D converter, and export the first control signal at received digital signal during higher than the first preset value and export the second control signal at received digital signal during lower than the second preset value;
The drive circuit being connected with single-chip microcomputer, receives the first control signal/the second control signal from single-chip microcomputer; And
Be connected in the relay between city's power line and combined socket and switch, described relay is also connected with drive circuit, in the time that drive circuit receives the first control signal from single-chip microcomputer, described drive circuit control relay disconnects, in the time that drive circuit receives the second control signal from single-chip microcomputer, described drive circuit control relay closure.
2. the conceal-mounted type metal junction box of belt current watch-dog according to claim 1, is characterized in that, described Hall current sensor is ACS758 model chip.
3. the conceal-mounted type metal junction box of belt current watch-dog according to claim 1, is characterized in that, described electric current monitor also comprises siren, and described siren is arranged on the surface of shell and is connected with single-chip microcomputer.
4. the conceal-mounted type metal junction box of belt current watch-dog according to claim 3, is characterized in that, described siren is LED lamp.
5. the conceal-mounted type metal junction box of belt current watch-dog according to claim 1, is characterized in that, described metal case internal activity is provided with somely climbs for the ear fixing with the panel of combined socket and switch, and described ear is climbed up and is provided with installing hole.
6. the conceal-mounted type metal junction box of belt current watch-dog according to claim 5, is characterized in that, is fixedly installed fin in the end of described metal case, and described fin and metal case form chute, and described fin slides and is arranged in chute.
7. according to the conceal-mounted type metal junction box of the belt current watch-dog described in claim 5 or 6, it is characterized in that, in described metal case and be positioned at that ear climbs below be provided with the second through wires hole.
8. the conceal-mounted type metal junction box of belt current watch-dog according to claim 7, is characterized in that, described the second through wires hole is semicircle.
9. the conceal-mounted type metal junction box of belt current watch-dog according to claim 1, is characterized in that, on the side of described metal case, is provided with reinforcement.
10. the conceal-mounted type metal junction box of belt current watch-dog according to claim 9, is characterized in that, described reinforcement is strip, and described reinforcement is inside or outwardly forming by metal case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724159.9U CN203632150U (en) | 2013-11-13 | 2013-11-13 | Concealed-type metal conjunction box with current monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724159.9U CN203632150U (en) | 2013-11-13 | 2013-11-13 | Concealed-type metal conjunction box with current monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632150U true CN203632150U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724159.9U Expired - Fee Related CN203632150U (en) | 2013-11-13 | 2013-11-13 | Concealed-type metal conjunction box with current monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606867A (en) * | 2013-11-13 | 2014-02-26 | 常熟市宝华建筑装璜材料有限公司 | A concealed-type metal conjunction box with a current monitor |
-
2013
- 2013-11-13 CN CN201320724159.9U patent/CN203632150U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606867A (en) * | 2013-11-13 | 2014-02-26 | 常熟市宝华建筑装璜材料有限公司 | A concealed-type metal conjunction box with a current monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20141113 |
|
| EXPY | Termination of patent right or utility model |