CN208421199U - A kind of VA characteristic curve experimental provision of light bulb - Google Patents
A kind of VA characteristic curve experimental provision of light bulb Download PDFInfo
- Publication number
- CN208421199U CN208421199U CN201821180605.3U CN201821180605U CN208421199U CN 208421199 U CN208421199 U CN 208421199U CN 201821180605 U CN201821180605 U CN 201821180605U CN 208421199 U CN208421199 U CN 208421199U
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- China
- Prior art keywords
- fixedly installed
- fixed block
- holder block
- characteristic curve
- upper holder
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a kind of VA characteristic curve experimental provisions of light bulb, it is related to experimental apparatus technical field；The upper surface of pedestal is fixedly installed with grid type board, the upper surface of fixed block is provided with several uniform recessed arc grooves, and the upper surface of arc groove is fixedly installed with conductive sheet, several conductive sheets are connected and connect with connection sheet, connection sheet wears the outside for connecing in fixed block and extending fixed block, the upper middle part of fixed block is fixedly installed with guiding cylinder, upper holder block body is socketed on guiding cylinder, the bottom of upper holder block body is provided with several wire pressuring bodies corresponding with arc groove, the bottom of wire pressuring body is provided with several card line sawtooth, the upper end of upper holder block body is connected with connecting spring, the upper end of connecting spring is fixedly installed with tabletting；The utility model is able to achieve the quick connection of conducting wire in experiment, and is not easy to loosen after connecting, high-efficient, can save the time；It is easy to implement VA characteristic curve drafting, it is easy to use, it is easy to operate.
Description
Technical field
The utility model belongs to experimental apparatus technical field, and in particular to a kind of VA characteristic curve experiment dress of light bulb
It sets.
Background technique
VA characteristic curve figure, which commonly uses ordinate, indicates that electric current I, abscissa indicate voltage U, the I-U image drawn with this
Do the VA characteristic curve figure of conductor.This image is often used to the changing rule of research conductor resistance, is that physics is common
One of image method.The VA characteristic curve of existing light bulb is tested drawing, and is drawn with the data of experiment,
But existing experimental provision inconvenient fast-wiring when in use, and it is not firm in wiring, it is easily separated from, when experiment
Between it is longer, it is complicated for operation.
Utility model content
To solve existing experimental provision inconvenient fast-wiring when in use, and it is not firm in wiring, it is easy de-
From experimental period is longer, problem complicated for operation；The purpose of this utility model is to provide a kind of C-V characteristic of light bulb songs
Line experimental provision.
A kind of VA characteristic curve experimental provision of light bulb of the utility model, it includes pedestal, rear mounting plate, lamp cap
Seat, voltmeter, ammeter, slide rheostat, battery, switch；The upper rear end of pedestal is fixedly installed with rear mounting plate, rear mounting plate
It is upper that bulb socket, voltmeter, ammeter, slide rheostat, battery, switch are fixedly installed with by bolt respectively, pedestal it is interior before
Side offers the placing groove of front openings；It further includes grid type board, fast-connecting type termination；Bulb socket, voltmeter, electricity
Flow table, slide rheostat, battery, switch wiring point at be fixedly connected to fast-connecting type termination, the upper surface of pedestal is solid
Dingan County is equipped with grid type board, and the fast-connecting type termination includes fixed block, upper holder block body, wire pressuring body, card line sawtooth, leads
To cylinder, connecting spring, tabletting, adjusting nut, conductive sheet, connection sheet；The upper surface of fixed block be provided with it is several it is uniform under
Recessed arc groove, and the upper surface of arc groove is fixedly installed with conductive sheet, several conductive sheets are connected and connect with connection sheet, even
The outside for connecing in fixed block and extending fixed block is worn in contact pin, and the upper middle part of fixed block is fixedly installed with guiding cylinder, guiding
Upper holder block body is socketed on cylinder, the bottom of upper holder block body is provided with several wire pressuring bodies corresponding with arc groove, wire pressuring body
Bottom is provided with several card line sawtooth, and the upper end of upper holder block body is connected with connecting spring, and the upper end of connecting spring is fixedly installed with
Tabletting, upper holder block body are flexibly connected with tabletting with guiding cylinder, and guiding cylinder is made of square column with screw rod, the upper end of square column
It is fixedly connected with screw rod, adjusting nut is fixedly connected on screw rod, the lower surface of adjusting nut is in contact with the upper surface of tabletting.
Preferably, the conductive sheet is arc, the upper surface of conductive sheet is provided with wearing layer.
Preferably, the outer surface of the upper holder block body is provided with anti-skidding annular knurl.
Preferably, the upper surface that the grid type board is magnetic white board is provided with grid lines layer.
Compared with prior art, the utility model has the following beneficial effects:
One, it is able to achieve the quick connection of conducting wire in experiment, and is not easy to loosen after connecting, it is high-efficient, the time can be saved；
Two, it is easy to implement VA characteristic curve drafting, it is easy to use, it is easy to operate.
Detailed description of the invention
The present invention is described in detail by the following detailed description and drawings for ease of explanation,.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of the utility model in the base；
Fig. 3 is the structural schematic diagram of fast-connecting type termination in the utility model；
Fig. 4 is the structural schematic diagram that cylinder is oriented in the utility model；
Fig. 5 is the connection schematic diagram of conductive sheet in fixed block in the utility model.
In figure: 1- pedestal；Mounting plate after 2-；3- bulb socket；4- voltmeter；5- ammeter；6- slide rheostat；7- electricity
Pond；8- switch；9- grid type board；10- fast-connecting type termination；1-1- placing groove；10-1- fixed block；10-2- upper holder block
Body；10-3- wire pressuring body；10-4- card line sawtooth；10-5- is oriented to cylinder；10-6- connecting spring；10-7- tabletting；10-8- is adjusted
Nut；10-9- conductive sheet；10-10- connection sheet.
Specific embodiment
To make the objectives, technical solutions and advantages of the present invention clearer, below by shown in the accompanying drawings
Specific embodiment describes the utility model.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit this reality
With novel range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid unnecessarily mixing
Confuse the concept of the utility model.
Here, it should also be noted that, in order to avoid having obscured the utility model because of unnecessary details, in the accompanying drawings
It illustrate only the structure and/or processing step closely related with scheme according to the present utility model, and be omitted practical with this
The little other details of new relationship.
As shown in Figure 1, present embodiment uses following technical scheme: it includes pedestal 1, rear mounting plate 2, bulb socket
3, voltmeter 4, ammeter 5, slide rheostat 6, battery 7, switch 8；The upper rear end of pedestal 1 is fixedly installed with rear mounting plate 2, after
Mounting plate 2 is able to achieve the electrical component installation of experiment, passes through bolt on rear mounting plate 2 and is fixedly installed with bulb socket 3, voltage respectively
The interior front side of table 4, ammeter 5, slide rheostat 6, battery 7, switch 8, pedestal 1 offers the placing groove 1-1 of front openings；It puts
Pen and tool etc. can be placed by setting slot 1-1, it further includes grid type board 9, fast-connecting type termination 10；Bulb socket 3, voltage
Table 4, ammeter 5, slide rheostat 6, battery 7, switch 8 wiring point at be fixedly connected to fast-connecting type termination 10, fastly
The quick connection that formula termination 10 is able to achieve conducting wire is connect, and conducting wire is not easy to loosen；
As shown in Fig. 2, the upper surface of pedestal 1 is fixedly installed with grid type board 9, grid type board 9 can be as seat
Target uses, and when in use, can be realized drafting curve,
As shown in figure 3, the fast-connecting type termination 10 include fixed block 10-1, upper holder block body 10-2, wire pressuring body 10-3,
Card line sawtooth 10-4, guiding cylinder 10-5, connecting spring 10-6, tabletting 10-7, adjusting nut 10-8, conductive sheet 10-9, connection
Piece 10-10；The upper surface of fixed block 10-1 is provided with several uniform recessed arc grooves, and the fixed peace in upper surface of arc groove
Equipped with conductive sheet 10-9 (as shown in Figure 5), conductive sheet is able to achieve the contact of connecting wire, several conductive sheet 10-9 be connected and with
Connection sheet 10-10 connection (as shown in Figure 5), connection sheet 10-10 can be spot welded with the wiring of electrical component or be connected by conducting wire
It connects, connection sheet 10-10 wears the outside (as shown in Figure 5) for meeting in fixed block 10-1 and extending fixed block 10-1, fixed block 10-
1 upper middle part is fixedly installed with guiding cylinder 10-5, and guiding cylinder 10-5 is able to achieve the guiding of upper holder block body 10-2, upper holder block body
10-2 can be slided up and down on guiding cylinder, be oriented on cylinder 10-5 and be socketed with upper holder block body 10-2, upper holder block body 10-2
Bottom be provided with several wire pressuring body 10-3s corresponding with arc groove, will be sliding on upper holder block body 10-2 in wiring, then will
Conducting wire is placed in arc groove, and is contacted with conductive sheet, then puts down upper holder block body 10-2, so that the card line on card line body is sawed
Tooth 10-4 realizes the clamping and compacting of conducting wire, and the bottom of wire pressuring body 10-3 is provided with several card line sawtooth 10-4, upper holder block body 10-
2 upper end is connected with connecting spring 10-6, and upper holder block body is realized that homing position type pushes by the elastic force of connecting spring 10-6, led to simultaneously
Rotation adjusting nut is crossed to realize the adjusting of connecting spring 10-6 elastic force, the upper end of connecting spring 10-6 is fixedly installed with tabletting
10-7, upper holder block body 10-2 and tabletting 10-7 are flexibly connected with guiding cylinder 10-5,
As shown in figure 4, guiding cylinder 10-5 is made of square column 10-51 and screw rod 10-52, the upper end of square column 10-51
It is fixedly connected with screw rod 10-52,
As shown in figure 3, adjusting nut 10-8 is fixedly connected on screw rod 10-52, the lower surface of adjusting nut 10-8 and pressure
The upper surface of piece 10-7 is in contact, and rotation adjusting nut is able to achieve the elastic force for adjusting connecting spring.
Further, the conductive sheet 10-9 is arc, and the upper surface of conductive sheet 10-9 is provided with wearing layer, conductive sheet
10-9 be able to achieve it is conductive with it is wear-resisting.
Further, the outer surface of the upper holder block body 10-2 is provided with anti-skidding annular knurl, and anti-skidding annular knurl is able to achieve upper holder block
Body 10-2 is anti-skidding when upper sliding.
Further, the grid type board 9 is that the upper surface of magnetic white board is provided with grid lines layer, is able to achieve quickly
It draws, and convenient for wiping.
The working principle of the present embodiment is as follows: realizing conducting wire by fast-connecting type termination 10 in connecting wire
Quick connection, connection sheet 10-10 in advance with bulb socket 3, voltmeter 4, ammeter 5, slide rheostat 6, battery 7, switch 8
Wiring point connection, by way of welding or conducting wire connection, fixed block 10-1 is fixed on rear mounting plate, will be upper when wiring
Briquetting body 10-2 carries out upper cunning on guiding cylinder 10-5, so that wire pressuring body 10-3 is detached from arc groove, conducting wire is placed on arc
In slot, then upper holder block body 10-2 is put down, so that wire pressuring body 10-3 realizes the compacting of conducting wire, and real by card line sawtooth 10-4
The clamping of existing conducting wire is less prone to the phenomenon that conducting wire loosens, and guiding cylinder 10-5 is able to achieve the connection of guiding and adjusting nut, and
Electrical component connection type is identical as existing connection type, specific as follows: the cathode of battery 7 is connect with one end of switch 8, is opened
The other end of pass 8 is connect with a terminals of slide rheostat 6, and the anode of battery 7 connects with bulb socket 3, slide rheostat 6 respectively
It connects, the adjustable side of slide rheostat 6 is connect with ammeter 5, and ammeter 5, which is worn, to be connect on bulb socket 3, and voltmeter 4 and bulb socket 3 are simultaneously
Connection.
Using the electric current and voltage of voltammetry measurement filament under different voltages, VA characteristic curve, small bulbs are depicted
Filament resistance resistance value is smaller, therefore uses external ammeter method electric current, due to electric current, electricity of the small bulbs to be surveyed under different voltages
Pressure, voltage value range is big as far as possible, therefore slide rheostat should be bleeder circuit, so the resistance value of filament is with bulb side
The raising of voltage and it is why big, I-U figure line was no longer the straight line of origin, and wherein small bulbs are 3.8V, 0.3A, voltmeter (0~
3~15V), ammeter (0~0.6~3A), 20 Ω of slide rheostat；When experiment, 1, connection experimental circuit, 2, sliding slide plate position
It sets, measures multiple groups voltage and current value, 3, the described point on coordinate on grid type board are connected each with a smooth curve
Point falls in several points big absolutely on curve, and base point is symmetrically distributed in curve two sides.
Claims (4)
1. a kind of VA characteristic curve experimental provision of light bulb, it includes pedestal, rear mounting plate, bulb socket, voltmeter, electric current
Table, slide rheostat, battery, switch；The upper rear end of pedestal is fixedly installed with rear mounting plate, is distinguished on rear mounting plate by bolt
It is fixedly installed with bulb socket, voltmeter, ammeter, slide rheostat, battery, switch, the interior front side of pedestal offers front side and opens
The placing groove of mouth；It is characterized by: it further includes grid type board, fast-connecting type termination；Bulb socket, voltmeter, electric current
Table, slide rheostat, battery, switch wiring point at be fixedly connected to fast-connecting type termination, the upper surface of pedestal is fixed
Grid type board is installed, the fast-connecting type termination includes fixed block, upper holder block body, wire pressuring body, card line sawtooth, guiding
Cylinder, connecting spring, tabletting, adjusting nut, conductive sheet, connection sheet；The upper surface of fixed block is provided with several uniform recessed
Arc groove, and the upper surface of arc groove is fixedly installed with conductive sheet, and several conductive sheets are connected and connect with connection sheet, connection
Piece wears the outside for connecing in fixed block and extending fixed block, and the upper middle part of fixed block is fixedly installed with guiding cylinder, guide post
Upper holder block body is socketed on body, the bottom of upper holder block body is provided with several wire pressuring bodies corresponding with arc groove, the bottom of wire pressuring body
Portion is provided with several card line sawtooth, and the upper end of upper holder block body is connected with connecting spring, and the upper end of connecting spring is fixedly installed with pressure
Piece, upper holder block body are flexibly connected with tabletting with guiding cylinder, and guiding cylinder is made of square column with screw rod, and the upper end of square column is solid
Surely it is connected with screw rod, adjusting nut is fixedly connected on screw rod, the lower surface of adjusting nut is in contact with the upper surface of tabletting.
2. a kind of VA characteristic curve experimental provision of light bulb according to claim 1, it is characterised in that: the conductive sheet
Upper surface for arc, conductive sheet is provided with wearing layer.
3. a kind of VA characteristic curve experimental provision of light bulb according to claim 1, it is characterised in that: the upper holder block
The outer surface of body is provided with anti-skidding annular knurl.
4. a kind of VA characteristic curve experimental provision of light bulb according to claim 1, it is characterised in that: the grid type
Board is that the upper surface of magnetic white board is provided with grid lines layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821180605.3U CN208421199U (en) | 2018-07-24 | 2018-07-24 | A kind of VA characteristic curve experimental provision of light bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821180605.3U CN208421199U (en) | 2018-07-24 | 2018-07-24 | A kind of VA characteristic curve experimental provision of light bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208421199U true CN208421199U (en) | 2019-01-22 |
Family
ID=65123195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821180605.3U Expired - Fee Related CN208421199U (en) | 2018-07-24 | 2018-07-24 | A kind of VA characteristic curve experimental provision of light bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208421199U (en) |
-
2018
- 2018-07-24 CN CN201821180605.3U patent/CN208421199U/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: 20190122 Termination date: 20190724 |