CN207799105U - Portable detector wire - Google Patents
Portable detector wire Download PDFInfo
- Publication number
- CN207799105U CN207799105U CN201721903304.4U CN201721903304U CN207799105U CN 207799105 U CN207799105 U CN 207799105U CN 201721903304 U CN201721903304 U CN 201721903304U CN 207799105 U CN207799105 U CN 207799105U
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- China
- Prior art keywords
- shell
- induction coil
- electric wire
- electromagnetic induction
- panel
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Abstract
The utility model discloses a kind of portable detector wires, include the cylindrical handle of the hemispherical shell and rear end of front end, which is made of stainless steel material, and electromagnetic induction coil and detection circuit are provided in shell；The electromagnetic induction coil is parallel with resonant capacitance C1, electromagnetic induction coil forms resonant tank with resonant capacitance C1, the detection circuit includes amplifying circuit, one end of electromagnetic induction coil is connected with the input terminal of amplifying circuit, the other end of electromagnetic induction coil is grounded, the in-phase input end of the output end connection integrated transporting discharging comparator of amplifying circuit, the inverting input of integrated transporting discharging comparator is connected with reference circuit, one end of the output end connection indicator light of integrated transporting discharging comparator, the anode of the other end connection diode D2 of indicator light, the cathode ground connection of diode D2.Portable detector wire provided by the utility model is simple in structure, and of low cost, strong antijamming capability is easy to use.
Description
Technical field
The utility model is related to domestic electric appliance fields, and in particular to a kind of portable detector wire.
Background technology
During house decoration checks, the electric wire in metope often has some impact on construction, or even causes accident, causes people
Member's property loss.If can be detected before construction, the arrangement of the electric wire in metope is found out, then can be effectively prevented related thing
Therefore the generation of loss.
Current portable detector wire, complicated, with high costs, size and precision index etc. are also deficient
It lacks.In addition existing portable detector wire is not due to taking shielding and interference protection measure, so poor anti jamming capability, by
In electric wire it is embedded in wall, the electric current of many electric appliances is small, and the electromagnetic signal generated is very faint, electric light, the electricity of outside
Device and radio signal are likely to influence the accuracy of detection signal, and the judgement for generating mistake is caused therefore to be compeled in the market
It is essential and wants that a kind of compact dimensions, cost of manufacture is relatively low, manufacture craft is simple, the portable detector wire of strong antijamming capability.
Utility model content
In view of at least one defect of the prior art, the purpose of this utility model is to provide a kind of portable electric wire detection
Device, the portable detector wire is simple in structure, and of low cost, strong antijamming capability is easy to use.
In order to achieve the above object, the utility model adopts the following technical scheme that, a kind of portable detector wire, closes
Key is, including hemispherical shell, the big end opening of shell, and side of the shell far from its opening is connected with columnar handle,
The shell is made of stainless steel material, and electromagnetic induction coil and electric wire detection circuit are provided in shell；Electric wire detection electricity
Road is connected with indicator light；Electromagnetic induction coil obtains the electromagnetic signal that electric wire is sent out within the walls and passes to electric wire detection circuit, electric wire
Detection circuit control instruction lamp on/off；
The iron core of the electromagnetic induction coil including " C " shape and the coil being wrapped on iron core, the opening setting of shell
There are panel, the both ends insertion panel of iron core simultaneously to be flushed with the outer end face of panel；The iron core is made of ultramicro-crystal alloy.
The utility model is convenient and practical, and when use covers on the opening of the shell of front on metope, due to by electromagnetic induction
Coil and electric wire detection circuit are set in shell, and the shell that stainless steel makes can effectively shield electric light, electric appliance and radio
The electromagnetic signal generated is communicated, keeps the result of detection of portable detector wire more accurate.
If live wire is arranged within the walls, electromagnetic induction coil obtains the power frequency component that electric wire is sent within the walls, passes to electric wire
Detection circuit, electric wire detection circuit control indicator light are lighted, and otherwise electric wire detection circuit control indicator light extinguishes.
" C " shape is arranged in electromagnetic induction coil, both ends are embedded in panel, wall is abutted against convenient for the both ends of electromagnetic induction coil
On face, the power frequency component that electric wire within the walls is sent out can be effectively received, the magnetic property of ultramicro-crystal alloy is good, can effectively acquire power frequency letter
Number, it prevents from losing.
It is provided with cavity in the handle, power supply is provided in cavity, the power supply is accumulator, which is electricity
Line detection circuit is powered, and the outer wall of handle is provided with solar panel, the charged circuit of solar panel is to store
Battery charges.
Above structure setting is removed from convenient for being powered for portable detector wire using solar energy and charges and replace repeatedly
The trouble of battery.
The charging circuit includes diode D3 and voltage-stabiliser tube D4, and the cathode connecting diode D3 of solar panel is just
Pole, the cathode ground connection of solar panel, the cathode of the cathode connection voltage-stabiliser tube D4 of diode D3, the anode of voltage-stabiliser tube D4 connect
The cathode on ground, voltage-stabiliser tube D4 is also connected with the anode of accumulator, the cathode ground connection of accumulator.
Above-mentioned charging circuit configuration is simple, of low cost.
The panel is made of plastics, and panel is connected by the outer wall of screw and shell, and the both ends of iron core are bonded in panel
On.
Above structure is convenient for assembly and repair electromagnetic induction coil and electric wire detection circuit.
The open edge of the shell is rounded down.
Above structure setting can prevent the open edge of shell from scratching metope.
The handle is made of plastics, and handle includes pipe, and the both ends open of pipe, the front end of pipe and shell are connected,
The rear end of pipe is provided with end cap, and end cap is connected through a screw thread with pipe.
Pipe is arranged by above structure, and endoporus and shell, the end cap of pipe form cavity, can be by accumulator, charging
Circuit is set to cavity, convenient for assembly and maintenance.When maintenance, end cap can be unloaded from the rear end of pipe.
The electromagnetic induction coil is parallel with resonant capacitance C1, and electromagnetic induction coil forms resonance with resonant capacitance C1 and returns
Road, the electric wire detection circuit include amplifying circuit, and one end of electromagnetic induction coil is connected with the input terminal of amplifying circuit, electromagnetism
The other end of induction coil is grounded, the in-phase input end of the output end connection integrated transporting discharging comparator of amplifying circuit, integrated transporting discharging
The inverting input of comparator is connected with reference circuit, one end of the output end connection indicator light of integrated transporting discharging comparator, instruction
The anode of the other end connection diode D2 of lamp, the cathode ground connection of diode D2；The indicator light is arranged in shell or handle
Outer wall.
Electromagnetic induction coil forms resonant tank with resonant capacitance C1, and resonant frequency and the 50Hz power frequencies of the resonant tank are believed
Number frequency it is identical, power frequency component can effectively be amplified, to inhibit remaining electric appliance and radio communication to generate
Electromagnetic signal and common mode interference signal.
The signal of electromagnetic induction coil is after amplifying circuit amplifies, due to being possible to containing indoor electricity in the signal of amplification
The AC influence signal and common mode interference signal for the 50Hz that lamp, electric appliance occur, due to the shielding action of shell, these signals are equal
Less than electric wire generate 50Hz power frequency components, be compared by integrated transporting discharging comparator, integrated transporting discharging comparator it is reversed defeated
Enter end and be connected with reference circuit, which generates a comparison voltage signal, since interference signal is less than the electricity of reference circuit
Signal is pressed, therefore is integrated amplifier comparator to masking, the power frequency component that live wire generates is due to being more than reference circuit
Comparison voltage signal, integrated transporting discharging comparator can be made to export positive voltage and make indicator light shine.
Therefore the anti-jamming signal ability of the present apparatus is strong, and structure is also fairly simple, of low cost, is convenient for users
It uses.
Additionally by the comparison voltage signal for adjusting reference circuit, the sensitive of portable detector wire can also be adjusted
Degree, comparison voltage signal is smaller, and sensitivity is higher.For the ease of being accurately positioned, reduction error can also turn down sensitivity,
So only when the lucky face electric wire of shell, indicator light just shine, distance farther out when do not shine.
Advantageous effect:The utility model provides a kind of portable detector wire, the portable detector wire structure
Simply, of low cost, strong antijamming capability is easy to use.
Description of the drawings
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the circuit diagram of electric wire detection circuit；
Fig. 3 is the circuit diagram of charging circuit.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1-Figure 3, the utility model provides a kind of portable detector wire, including hemispherical shell 1,
The big end opening of shell 1, side of the shell 1 far from its opening are connected with columnar handle 2, and the shell 1 is by stainless steel material
It is made, electromagnetic induction coil 3 and electric wire detection circuit 4 is provided in shell 1；Electric wire detection circuit 4 is connected with indicator light 5；
Electromagnetic induction coil 3 obtains the electromagnetic signal that electric wire is sent out within the walls and passes to electric wire detection circuit 4, and electric wire detection circuit 4 controls
5 light on and off of indicator light；
The iron core 31 of the electromagnetic induction coil 3 including " C " shape and the coil 32 being wrapped on iron core 31, shell 1
Opening is provided with panel 11, and the both ends insertion panel 11 of iron core 31 is simultaneously flushed with the outer end face of panel 11；The iron core 31 is by surpassing
Microcrystallizing alloy is made.
The utility model is convenient and practical, and when use covers on the opening of the shell 1 of front on metope, due to by electromagnetic induction
Coil 3 and electric wire detection circuit 4 are set in shell 1, and the shell 1 that stainless steel makes can effectively shield electric light, electric appliance, Yi Jiwu
The electromagnetic signal that the communication of line electricity generates, keeps result of detection more accurate.
If live wire is arranged within the walls, electromagnetic induction coil 3 obtains the power frequency component that electric wire is sent within the walls, passes to electric wire
Detection circuit 4, electric wire detection circuit 4 control indicator light 5 and light, and otherwise electric wire detection circuit 4 controls indicator light 5 and extinguishes.
" C " shape is arranged in electromagnetic induction coil 3, both ends are embedded in panel 11, and the both ends convenient for electromagnetic induction coil 3 abut
On metope, the power frequency component that electric wire within the walls is sent out can be effectively received, the magnetic property of ultramicro-crystal alloy is good, can effectively acquire work
Frequency signal prevents from losing.
It is provided with cavity 21 in the handle 2, power supply is provided in cavity 21, the power supply is accumulator 6, the electric power storage
Pond 6 powers for electric wire detection circuit 4, the outer wall of handle 2 is provided with solar panel 7, the solar panel 7 is through filling
Circuit 8 charges for accumulator 6.
Above structure setting is removed from convenient for being powered for portable detector wire using solar energy and charges and replace repeatedly
The trouble of battery.
The charging circuit 8 includes diode D3 and voltage-stabiliser tube D4, the cathode connecting diode D3's of solar panel 7
Anode, the cathode ground connection of solar panel 7, the cathode of the cathode connection voltage-stabiliser tube D4 of diode D3, the anode of voltage-stabiliser tube D4
Ground connection, the cathode of voltage-stabiliser tube D4 are also connected with the anode of accumulator 6, the cathode ground connection of accumulator 6.
Above-mentioned charging circuit configuration is simple, of low cost.
The panel 11 is made of plastics, and panel 11 is connect by screw 11a with the outer wall of shell 1, the both ends of iron core 31
It is bonded on panel 11.
Above structure is convenient for assembly and repair electromagnetic induction coil 3 and electric wire detection circuit 4.
The open edge of the shell 1 is rounded down 12.
Above structure setting can prevent the open edge of shell 1 from scratching metope.
The handle 2 is made of plastics, and handle 2 includes pipe 22, the both ends open of pipe 22, the front end of pipe 22 and shell
Body 1 is connected, and the rear end of pipe 22 is provided with end cap 23, and end cap 23 is connected through a screw thread with pipe 22.
Pipe 22 is arranged by above structure, and endoporus and shell 1, the end cap 23 of pipe 22 form cavity 21, can will store
Battery 6, charging circuit 8 are set to cavity 21, convenient for assembly and maintenance.It, can be by end cap 23 from the rear end of pipe 22 when maintenance
It unloads.
The electromagnetic induction coil 3 is parallel with resonant capacitance C1, and electromagnetic induction coil 3 and resonant capacitance C1 forms resonance and returns
Road, the electric wire detection circuit 4 include amplifying circuit, and one end of electromagnetic induction coil 3 is connected with the input terminal of amplifying circuit, electricity
The other end of magnetic induction coil 3 is grounded, and the in-phase input end of the output end connection integrated transporting discharging comparator 41 of amplifying circuit integrates
The inverting input of amplifier comparator 41 is connected with reference circuit, the output end connection indicator light 5 of integrated transporting discharging comparator 41
One end, the anode of the other end connection diode D2 of indicator light 5, the cathode ground connection of diode D2；The indicator light 5 is arranged in shell
The outer wall of body 1 or handle 2.
Electromagnetic induction coil 3 and resonant capacitance C1 forms resonant tank, resonant frequency and the 50Hz power frequencies of the resonant tank
The frequency of signal is identical, can effectively be amplified power frequency component, to inhibit remaining electric appliance and radio communication to generate
Electromagnetic signal and common mode interference signal.
The signal of electromagnetic induction coil 3 is after amplifying circuit amplifies, due to being possible to containing indoor in the signal of amplification
The AC influence signal and common mode interference signal for the 50Hz that electric light, electric appliance occur, due to the shielding action of shell 1, these letters
Number be respectively less than electric wire generate 50Hz power frequency components, be compared by integrated transporting discharging comparator 41, integrated transporting discharging comparator 41
Reverse input end be connected with reference circuit, the reference circuit generate a comparison voltage signal, due to interference signal be less than reference
The voltage signal of circuit, therefore amplifier comparator 41 is integrated to masking, the power frequency component that live wire generates is due to big
In the comparison voltage signal of reference circuit, integrated transporting discharging comparator 41 can be made to export positive voltage and indicator light 5 is made to shine.
Therefore the anti-jamming signal ability of the present apparatus is strong, and structure is also fairly simple, of low cost, is convenient for users
It uses.
Additionally by the comparison voltage signal for adjusting reference circuit, the sensitive of portable detector wire can also be adjusted
Degree, comparison voltage signal is smaller, and sensitivity is higher.For the ease of being accurately positioned, reduction error can also turn down sensitivity,
So only when 1 lucky face electric wire of shell, indicator light 5 just shines, distance farther out when do not shine.
The amplifying circuit includes NPN triode VT, the filtered capacitance C2 of base stage and electromagnetic induction of NPN triode VT
One end of coil 3 is connected, and also through resistance R2 connection power supplys, the base stage of NPN triode VT also passes through the base stage of NPN triode VT
Resistance R1 ground connection, the collector of NPN triode VT is through resistance R3 connection power supplys, and the collector of NPN triode VT is through capacitance
The emitter of the in-phase input end of C4 connection integrated transporting dischargings comparator 41, NPN triode VT is grounded through resistance R4, resistance R4
It is parallel with shunt capacitance C3.
Above-mentioned amplification circuit structure is simple, can effectively filter common-mode signal, and amplifying circuit can effectively amplify
50Hz AC signals.
One end connection electricity of the reference circuit packet voltage-stabiliser tube D1, resistance R8, resistance R5 and adjustable resistance R6, resistance R8
Source, the cathode of the other end connection voltage-stabiliser tube D1 of resistance R8, the other end of the plus earth of voltage-stabiliser tube D1, resistance R8 connect resistance
One end of R5, the other end of resistance R5 are grounded through adjustable resistance R6, the other end of resistance R5 also with integrated transporting discharging comparator 41
Inverting input, which is connected, exports comparison signal.
Above-mentioned reference circuit can generate stable comparison voltage signal, and by adjusting adjustable resistance R6, can be with
The size for effectively adjusting comparison voltage signal, to adjust sensitivity or the anti-interference ability of portable detector wire.
Finally it should be noted that be：Listed above is only specific embodiment of the utility model, certain this field
Technical staff can be modified to the utility model and modification, if these modifications and variations belong to the utility model right and want
Ask and its equivalent technologies within the scope of, be considered as the scope of protection of the utility model.
Claims (6)
1. a kind of portable detector wire, it is characterised in that：Including hemispherical shell (1), the big end opening of shell (1),
Side of the shell (1) far from its opening is connected with columnar handle (2), and the shell (1) is made of stainless steel material, in shell
(1) electromagnetic induction coil (3) and electric wire detection circuit (4) are provided in；Electric wire detection circuit (4) is connected with indicator light (5)；Electricity
Magnetic induction coil (3) obtains the electromagnetic signal that electric wire is sent out within the walls and passes to electric wire detection circuit (4), electric wire detection circuit (4)
Control indicator light (5) light on and off；
The iron core (31) of the electromagnetic induction coil (3) including " C " shape and the coil (32) being wrapped on iron core (31), shell
(1) opening is provided with panel (11), and the both ends insertion panel (11) of iron core (31) is simultaneously flushed with the outer end face of panel (11)；Institute
Iron core (31) is stated to be made of ultramicro-crystal alloy.
2. portable detector wire according to claim 1, it is characterised in that：It is provided with cavity in the handle (2)
(21), power supply is provided in cavity (21), the power supply is accumulator (6), which is electric wire detection circuit (4)
Power supply, is provided with solar panel (7), the charged circuit of the solar panel (7) (8) is in the outer wall of handle (2)
Accumulator (6) charges.
3. portable detector wire according to claim 2, it is characterised in that：The charging circuit (8) includes two poles
Pipe D3 and voltage-stabiliser tube D4, the anode of the cathode connecting diode D3 of solar panel (7), the cathode of solar panel (7)
Ground connection, the cathode of the cathode connection voltage-stabiliser tube D4 of diode D3, the cathode of the plus earth of voltage-stabiliser tube D4, voltage-stabiliser tube D4 are also connected with
The anode of accumulator (6), the cathode ground connection of accumulator (6).
4. portable detector wire according to claim 1, it is characterised in that：The panel (11) is made of plastics,
Panel (11) is connect by screw (11a) with the outer wall of shell (1), and the both ends of iron core (31) are bonded on panel (11).
5. portable detector wire according to claim 1, it is characterised in that：The open edge of the shell (1) is fallen
There is fillet (12).
6. portable detector wire according to claim 1, it is characterised in that：The handle (2) is made of plastics, hand
Handle (2) includes pipe (22), and the both ends open of pipe (22), front end and the shell (1) of pipe (22) are connected, after pipe (22)
End is provided with end cap (23), and end cap (23) is connected through a screw thread with pipe (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721903304.4U CN207799105U (en) | 2017-12-29 | 2017-12-29 | Portable detector wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721903304.4U CN207799105U (en) | 2017-12-29 | 2017-12-29 | Portable detector wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207799105U true CN207799105U (en) | 2018-08-31 |
Family
ID=63279012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721903304.4U Expired - Fee Related CN207799105U (en) | 2017-12-29 | 2017-12-29 | Portable detector wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207799105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422088A (en) * | 2020-04-13 | 2020-07-17 | 苏州君洹自动化设备有限公司 | Outage indicating device and electric automobile fill electric pile |
-
2017
- 2017-12-29 CN CN201721903304.4U patent/CN207799105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422088A (en) * | 2020-04-13 | 2020-07-17 | 苏州君洹自动化设备有限公司 | Outage indicating device and electric automobile fill electric pile |
| CN111422088B (en) * | 2020-04-13 | 2021-08-31 | 苏州君洹自动化设备有限公司 | Outage indicating device and electric automobile fill electric pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20181229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |