CN206583989U - A kind of current carrying capacity of conductor and cross-section detector - Google Patents
A kind of current carrying capacity of conductor and cross-section detector Download PDFInfo
- Publication number
- CN206583989U CN206583989U CN201720201062.8U CN201720201062U CN206583989U CN 206583989 U CN206583989 U CN 206583989U CN 201720201062 U CN201720201062 U CN 201720201062U CN 206583989 U CN206583989 U CN 206583989U
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- carrying capacity
- housing
- capacitor grid
- grid transducer
- 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 - Fee Related
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a kind of current carrying capacity of conductor and cross-section detector, including housing, wherein, include in the housing：Capacitor grid transducer, forms a pair of the claws extended outside housing, for measure traverse line diameter between the scale of the capacitor grid transducer and dynamic chi；Single-chip microcomputer, is arranged in the housing and is connected with the capacitor grid transducer, for receiving the measurement result for the diameter of wire that the capacitor grid transducer is transmitted and being calculated；On display, the surface for being arranged on the housing, it is connected with the single-chip microcomputer, the result of calculation for showing the single-chip microcomputer；Power supply unit, is connected with the capacitor grid transducer, the single-chip microcomputer and the display, for providing operating voltage.
Description
Technical field
The utility model is related to electronic measuring technology field, more particularly to a kind of current-carrying capacity that can detect wire and section
Long-pending instrument.
Background technology
Such puzzlement can be usually run into we produce and lived：One is that insulated conductor is not indicating its sectional area
When, due to sectional area of wire can not be judged exactly, it can not then determine its safe carrying capacity；Even if two be to know insulated conductor
Sectional area, it is also difficult to determine the safe carrying capacity of wire.So cause selection production on electrical equipment connecting wire and
During family expenses wire, the ignorant phenomenon to the much line footpath wires of selection just occurs.If selecting sectional area of wire big, cause
Waste, because current carrying capacity of conductor and its section are proportional, but insulated conductor sectional area means that greatly its cost is high, because
This consideration for economic benefit and installing space, it is impossible to select the wire that section is excessive.Wire is long-term if having selected small
In there is potential safety hazard.Its reason is to allow when the current-carrying capacity that insulated conductor actually passes through is more than it by safe carrying capacity
When, its temperature rise can be higher, so that insulation layer fails, What is more to cause insulating barrier to burn, so as to cause the hair of danger
It is raw.
The determination method of current insulated conductor current-carrying capacity and sectional area only has two kinds.One is calculated by special formula,
Two are to look for special wire current-carrying scale.However, very big by special formula amount of calculation, it is impossible to obtain a result rapidly；
By searching current carrying capacity of conductor table, it is necessary to remember many data or carry with substantial amounts of current-carrying scale.And above-mentioned two
The method of kind is all very professional when implementing, and the personnel for not receiving academic program are difficult to grasp.
The content of the invention
The purpose of this utility model is to be led the drawbacks of overcoming in the prior art there is provided a kind of quick, easy, reliable detection
The current-carrying capacity of line and the device of sectional area.
For up to above-mentioned purpose, the utility model provides a kind of current carrying capacity of conductor and cross-section detector, including housing, its
In, include in the housing：
Capacitor grid transducer, forms a pair of the claws extended outside housing between the scale of the capacitor grid transducer and dynamic chi,
For measure traverse line diameter；
Single-chip microcomputer, is arranged in the housing and is connected with the capacitor grid transducer, is passed for receiving the capacitor grid transducer
The measurement result of the diameter of wire sent is simultaneously calculated；
On display, the surface for being arranged on the housing, it is connected with the single-chip microcomputer, based on showing the single-chip microcomputer
Calculate result；
Power supply unit, is connected with the capacitor grid transducer, the single-chip microcomputer and the display, for providing work electricity
Pressure.
According to the utility model proposes current carrying capacity of conductor and cross-section detector, wherein, be additionally provided with the housing
Two buttons, described two buttons are connected with the single-chip microcomputer, the different computation schemas for setting the single-chip microcomputer.
According to the utility model proposes current carrying capacity of conductor and cross-section detector, wherein, the model of the single-chip microcomputer
89C52RC。
According to the utility model proposes current carrying capacity of conductor and cross-section detector, wherein, the display be 1602 liquid
Crystal display.
According to the utility model proposes current carrying capacity of conductor and cross-section detector, wherein, said supply unit be 5V knobs
Detain battery.
Compared with prior art, the detector that the utility model is provided is simple and convenient, and user is without special training
It can easily grasp, be result with survey, it is safety quick；Hardware design of the present utility model is exquisite simultaneously, is easy to carry.
Brief description of the drawings
Fig. 1 is the external structure schematic diagram of the specific embodiment of detector one of the present utility model；
Fig. 2 is the inside annexation figure of the specific embodiment of detector one of the present utility model；
Fig. 3 is the use schematic diagram of detector of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is paid
The every other embodiment obtained, belongs to the scope of the utility model protection.
The following several technical terms related to the utility model are first introduced below.
Wire safe carrying capacity：It is general in the connection of electric equipment all to use insulated conductor, because insulated conductor has in itself
There is resistance, by that will be generated heat during electric current, the heat of generation can be dispersed into air by the insulating barrier of wire.If wire is sent out
The heat gone out is exactly equal to the heat that electric current is produced by wire, and the temperature of electric wire is not just in rise, and current value at this moment is exactly
The safe carrying capacity of wire.
Insulated conductor：Refer to and uniformly and hermetically wrap up one layer of non electrically conductive material in wire periphery, such as：Resin, plastics, silicon
Rubber, PVC etc., form insulating barrier, prevent electric conductor from contacting the electric wire for causing the accidents such as electric leakage, short circuit, electric shock to occur with extraneous.
Sectional area of wire：Wire core area is instructed, unit is square millimeter.Commonly using primary cable area is usually:0.75；
1；1.5；2.5；4；6；10；16；25；35；50；70；95；120；150；185；240；300.
Refer to Fig. 1 Fig. 2, be respectively the utility model proposes current carrying capacity of conductor and cross-section detector one be embodied
The schematic appearance and cut-away view of example.As can be seen from Figure 1, the utility model includes capacitor grid transducer 1, by capacitor grid transducer
Extend the detection mouth 2 of the claw formation outside housing, single-chip microcomputer 3 (preferably 89C52RC), liquid crystal display 4 (preferably 1602).
The utility model detects the diameter of insulated conductor by capacitor grid transducer detection mouth, and capacitor grid transducer leads insulation
The physical quantity of linear diameter is transformed into corresponding electricity and sends single-chip microcomputer to.
Detector of the present utility model is provided with single-chip microcomputer in enclosure interior, and affiliated single-chip microcomputer is used for acquisition and insulation
The corresponding electricity of diameter of wire changes into digital quantity, and the sectional area and corresponding peace for obtaining insulated conductor are calculated by formula
Full current-carrying capacity, is exported to liquid crystal display.The cross-sectional area formula of wherein wire is：
S=π (D/2)2, D is the insulated conductor diameter measured here；
The safe carrying capacity I of wire calculation formula is：I=KS, K is current-carrying coefficient of discharge here.
It is connected in addition, being additionally provided with two buttons (copper and aluminium) on housing of the present utility model with single-chip microcomputer, by pressing not
Same button comes the different logic judgment of control single chip computer progress and calculating, so as to complete to detect, show two kinds of materials of copper and aluminium
The value of insulated conductor sectional area and safe carrying capacity.
The preferred model 1602 of liquid crystal display in the utility model, for showing the final logical calculated knot of single-chip microcomputer
Really.In embodiment of the present utility model, the sectional area and safety corresponding with its sectional area of insulated conductor are shown thereon
Current-carrying capacity.
Capacitor grid transducer of the present utility model, single-chip microcomputer and liquid crystal display are powered using 5V button batteries.
The specifically used method of this instrument as shown in figure 3, the insulated end portions insulated hull of tested insulated conductor is pulled out after be put into
The measurement mouthful of capacitor grid transducer simultaneously steps up, and sectional area and safe carrying capacity will be shown on liquid crystal display.
In summary, the detector that the utility model is provided can not only measure insulated conductor sectional area and its safe current-carrying
Amount, and compact is exquisite, and easy to carry, measuring method is simple, is result with survey, and anyone only needs to specifications
Operation can be achieved, time cost and human cost when can greatly reduce measurement.
One of ordinary skill in the art will appreciate that：Accompanying drawing be module in the schematic diagram of one embodiment, accompanying drawing or
Flow is not necessarily implemented necessary to the utility model.
One of ordinary skill in the art will appreciate that：The module in device in embodiment can be according to embodiment description point
It is distributed in the device of embodiment, respective change can also be carried out and be disposed other than in one or more devices of the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still be modified to the technical scheme described in previous embodiment, or which part technical characteristic is equal
Replace；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model embodiment technical scheme
Spirit and scope.
Claims (5)
1. a kind of current carrying capacity of conductor and cross-section detector, including housing, it is characterised in that include in the housing：
Capacitor grid transducer, forms a pair of the claws extended outside housing, is used between the scale of the capacitor grid transducer and dynamic chi
Measure traverse line diameter；
Single-chip microcomputer, is arranged in the housing and is connected with the capacitor grid transducer, for receiving the capacitor grid transducer transmission
The measurement result of diameter of wire is simultaneously calculated；
On display, the surface for being arranged on the housing, it is connected with the single-chip microcomputer, the calculating knot for showing the single-chip microcomputer
Really；
Power supply unit, is connected with the capacitor grid transducer, the single-chip microcomputer and the display, for providing operating voltage.
2. current carrying capacity of conductor according to claim 1 and cross-section detector, it is characterised in that also set up on the housing
There are two buttons, described two buttons are connected with the single-chip microcomputer, the different computation schemas for setting the single-chip microcomputer.
3. current carrying capacity of conductor according to claim 1 or 2 and cross-section detector, it is characterised in that the single-chip microcomputer
Model 89C52RC.
4. current carrying capacity of conductor according to claim 1 or 2 and cross-section detector, it is characterised in that the display is
1602 liquid crystal displays.
5. current carrying capacity of conductor according to claim 1 or 2 and cross-section detector, it is characterised in that said supply unit
For 5V button cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720201062.8U CN206583989U (en) | 2017-03-02 | 2017-03-02 | A kind of current carrying capacity of conductor and cross-section detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720201062.8U CN206583989U (en) | 2017-03-02 | 2017-03-02 | A kind of current carrying capacity of conductor and cross-section detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206583989U true CN206583989U (en) | 2017-10-24 |
Family
ID=60111493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720201062.8U Expired - Fee Related CN206583989U (en) | 2017-03-02 | 2017-03-02 | A kind of current carrying capacity of conductor and cross-section detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206583989U (en) |
-
2017
- 2017-03-02 CN CN201720201062.8U patent/CN206583989U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20180302 |