CN203773825U - Novel experiment-used resistor - Google Patents
Novel experiment-used resistor Download PDFInfo
- Publication number
- CN203773825U CN203773825U CN201420182394.2U CN201420182394U CN203773825U CN 203773825 U CN203773825 U CN 203773825U CN 201420182394 U CN201420182394 U CN 201420182394U CN 203773825 U CN203773825 U CN 203773825U
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- CN
- China
- Prior art keywords
- resistance
- resistor
- end slot
- rear end
- end groove
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a novel experiment-used resistor, relates to a teaching device, and particularly relates to a teaching-experiment-used resistor structure. The resistor comprises a resistor box body. The upper surface of the resistor box body is provided with five resistor placing grooves side by side. The front and rear ends of each resistor placing groove are respectively provided with a front end groove and a rear end groove. The resistor placing grooves and the front and rear side surfaces of the resistor box body are communicated by the front end groove and the rear end groove. The front end groove and the rear end groove are respectively provided with a copper internal lining. The copper internal linings are internally provided with spring copper sheets. Five resistor bodies with different resistance values are respectively arranged in the five resistor placing grooves. The resistor connecting ends of the two ends of each resistor body are embedded into the copper internal linings of the front end groove and the rear end groove. Problems in electrical experiments that the resistors with different resistance values need to be used when the resistors are measured, and artificial work is time-consuming and troublesome in use are solved.
Description
Technical field
The utility model relates to instructional device, is specifically related to teaching experiment resistance structure.
Background technology
In Physical Experiment, need to measure resistance, the measuring method of resistance is also many, and the most frequently used has: (1) ohmmeter is measured: the most direct measuring resistance is instrument.But generally measure and can only carry out bigness scale with ohmmeter, for next step measurement provides a reference frame.Can measure the cold resistance of incandescent lamp bulb with ohmmeter.(2) method of substitution: the measurement thinking of method of substitution is equivalent thought, can be utilize current equivalence, also can be to utilize voltage equivalence.Method of substitution measuring resistance precision is high, does not need to calculate, and method is simple, but must have adjustable measuring resistance (will have resistance box in general given instrument).Method of substitution is to use and measured a certain physical property equivalence, thus alternative method in addition.
In Experiments of Electricity, in the time that resistance is measured, need to use the resistance of different resistances, when use, need manual operation, more time-consuming and trouble.
Utility model content
The utility model provides a kind of Novel experimental resistance, and the utility model has solved in Experiments of Electricity, in the time that resistance is measured, need to use the resistance of different resistances, when use, needs manual operation, the more time-consuming problem with bothering.
For addressing the above problem, the utility model adopts following technical scheme: Novel experimental resistance, comprise resistance box body 1, resistance box body 1 upper surface has been arranged side by side five resistance standing grooves 2, the front and back end of each resistance standing groove 2 is respectively arranged with front end slot 5 and rear end slot 6, and front end slot 5 and rear end slot 6 connect resistance standing groove 2 and the front and back sides of resistance box body 1 respectively; In front end slot 5 and rear end slot 6, be respectively arranged with copper liner 4, in copper liner 4, be provided with spring copper sheet 3; The resistance body 7 of five different resistances is arranged at respectively in five resistance standing grooves 2, and the resistor wiring end 8 at resistance body 7 two ends is embedded in the copper liner 4 of front end slot 5 and rear end slot 6.
When use, experiment is embedded in the copper liner of front end slot and rear end slot with the receiving end of wire, can measure resistance body, uses more convenient; Owing to adopting the resistance of five different resistances, therefore can select as required different resistance to measure; Due to series connection mutually between five resistance, in the time need to measuring the resistance of bigger numerical, as measured from left to right when the 1st, 2,3 three resistance sums, the wiring end line of measurement instrument inserts respectively in the copper liner of first rear end slot and the 3rd front end slot from left to right, can measure three resistance sums; In copper liner, be provided with spring copper sheet, can make to keep between connection terminal good electrically contacting; When use, can a certain resistance of single-measurement, also can measure two to five resistance sums; Because resistance standing groove, front end slot and rear end slot are the groove arranging at resistance cartridge upper surface, when therefore, installing, changing resistance and connect wire, embed downwards from top, swift to operate, convenient.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.
Symbol description in figure: resistance box body 1, resistance standing groove 2, spring copper sheet 3, copper liner 4, front end slot 5, rear end slot 6, resistance body 7, resistor wiring end 8, wire 9.
Embodiment
with best embodiment, the utility model is described in detail below
.
As shown in Figure 1-2, Novel experimental resistance, comprise resistance box body 1, resistance box body 1 upper surface has been arranged side by side five resistance standing grooves 2, the front and back end of each resistance standing groove 2 is respectively arranged with front end slot 5 and rear end slot 6, and front end slot 5 and rear end slot 6 connect resistance standing groove 2 and the front and back sides of resistance box body 1 respectively; In front end slot 5 and rear end slot 6, be respectively arranged with copper liner 4, in copper liner 4, be provided with spring copper sheet 3; The resistance body 7 of five different resistances is arranged at respectively in five resistance standing grooves 2, and the resistor wiring end 8 at resistance body 7 two ends is embedded in the copper liner 4 of front end slot 5 and rear end slot 6.
Resistance standing groove 2 bottoms are recessed half cylindrical structure.
Front end slot 5 and rear end slot 6 bottoms are recessed half cylindrical structure.
Between copper liner 4 in the rear end slot 6 of the copper liner 4 in the front end slot 5 of previous resistance standing groove 2 from left to right and an adjacent rear resistance standing groove 2, be connected with wire 9, will between five front end slots 5, be connected to series circuit.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example is clearly described, and the not restriction to embodiment.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 the apparent variation of being amplified out thus or variation are still among protection domain of the present utility model.
Claims (4)
1. Novel experimental resistance, it is characterized in that, comprise resistance box body (1), resistance box body (1) upper surface has been arranged side by side five resistance standing grooves (2), the front and back end of each resistance standing groove (2) is respectively arranged with front end slot (5) and rear end slot (6), and front end slot (5) and rear end slot (6) connect resistance standing groove (2) and the front and back sides of resistance box body (1) respectively; In front end slot (5) and rear end slot (6), be respectively arranged with copper liner (4), in copper liner (4), be provided with spring copper sheet (3); The resistance body (7) of five different resistances is arranged at respectively in five resistance standing grooves (2), and the resistor wiring end (8) at resistance body (7) two ends is embedded in the copper liner (4) of front end slot (5) and rear end slot (6).
2. Novel experimental resistance as claimed in claim 1, is characterized in that, resistance standing groove (2) bottom is recessed half cylindrical structure.
3. Novel experimental resistance as claimed in claim 1, is characterized in that, front end slot (5) and rear end slot (6) bottom are recessed half cylindrical structure.
4. Novel experimental resistance as claimed in claim 1, it is characterized in that, between copper liner (4) in the rear end slot (6) of the copper liner (4) in the front end slot (5) of previous resistance standing groove (2) from left to right and an adjacent rear resistance standing groove (2), be connected with wire (9), will between five front end slots (5), be connected to series circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182394.2U CN203773825U (en) | 2014-04-16 | 2014-04-16 | Novel experiment-used resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182394.2U CN203773825U (en) | 2014-04-16 | 2014-04-16 | Novel experiment-used resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773825U true CN203773825U (en) | 2014-08-13 |
Family
ID=51290985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420182394.2U Expired - Fee Related CN203773825U (en) | 2014-04-16 | 2014-04-16 | Novel experiment-used resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036049A (en) * | 2018-10-16 | 2018-12-18 | 王令剑 | A kind of electronic instruction Ohm's law display device |
-
2014
- 2014-04-16 CN CN201420182394.2U patent/CN203773825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036049A (en) * | 2018-10-16 | 2018-12-18 | 王令剑 | A kind of electronic instruction Ohm's law display device |
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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: 20140813 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |