CN203673903U - Circular distributed resistor support - Google Patents
Circular distributed resistor support Download PDFInfo
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- CN203673903U CN203673903U CN201420047230.9U CN201420047230U CN203673903U CN 203673903 U CN203673903 U CN 203673903U CN 201420047230 U CN201420047230 U CN 201420047230U CN 203673903 U CN203673903 U CN 203673903U
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- ring
- resistor cartridge
- resistance
- resistor
- shape distribution
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Abstract
The utility model provides a circular distributed resistor support. The resistor support is in an upper and lower two-layer symmetrical structure. Each layer comprises a conductor inner ring and an insulation outer ring, and the inner rings and the outer rings are fixedly connected through self-tapping screws. The upper and lower layers of the resistor support are supported and connected through insulation columns, the upper ends of the insulation are fixedly connected with the upper resistor support, threads are arranged at the lower ends, and the insulation columns are connected with the lower resistor support through height adjusting nuts. Threaded holes are uniformly formed in the conductor inner rings, and a resistor connection rod is fixed in each threaded hole. Current wiring ends are arranged on the conductor inner rings, and voltage wiring ends are arranged on the insulation outer rings and are connected with the resistor connection rods of the same layers through wires. According to the resistor support, the upper and lower symmetrical distributed resistor support structure is used, so that resistance of low load coefficients can be obtained, and actual requirements of precise measuring and the like are met.
Description
Technical field
The utility model relates to a kind of electric resistance structure, particularly a kind of ring-shape distribution resistor cartridge of low load factor.
Background technology
Resistance, as the basic components and parts of electricity field, is widely used in the fields such as electronic technology, apparatus, Industry Control, delicate metering.Due to the development of electronic technology, reliability to electronic instrument and the requirement of performance are more and more higher, as the resistor of one of electronic circuit composed component, except requiring its resistance accuracy, also its various characteristics such as stability, annual gradient is proposed to requirement.And in Precise Electromagnetic Measurement field, resistance device is widely used in the occasions such as the sampling resistor in standard, Precision Current Component and the current sample measurement in accurate electric measuring instrument core parts, transmission of quantity value, can say that the quality of resistor performance has determined the quality of these instruments to a great extent.But the resistance of resistance under in working order not immobilizes, in the time of resistance current flowing, (under loading condition) can heating, causes resistance self temperature to change, and resistance also can change thereupon.In general commercial Application, these variations are not also very important, but in accurate measurement, as metering field, the measure error causing due to self-heating when resistance energising just must be considered.For example, in the International key comparison carrying out at 100 Ohmic resistance values, specify that the electric current passing through in 100 ohm of standard resistors must be 5mA, but during the transmission of quantity value to 1 of 100 ohm of standard resistors ohm, 100 ohm are upper is 0.5mA by electric current, under both of these case, and the load difference of 100 Ohmic resistances, the variation of resistance can cause experimental result to occur certain error, and this error must Measurement accuracy and assessment.
Therefore, how low-resistance load factor, fall in accurate measurement field especially in modern industry, improves the stability of resistance device, is a technical barrier always.The influencing factor of resistive performance is except the own performance of resistance (as the material of resistance wire), also comprise structure (affecting the heat radiation in ohmic load situation), the element composition (determining the load of individual unit resistance) of resistance etc. of resistance, if can carry out appropriate design for these main points, be expected to obtain the resistance that load factor is enough little.
Utility model content
The utility model, for the demand to low load factor resistor in practice, provides a kind of ring-shape distribution resistor cartridge in an embodiment.
The ring-shape distribution resistor cartridge that the utility model provides, this resistor cartridge is upper and lower two-layer symmetrical structure, and every layer comprises ring in conductor, insulation outer shroud, and this inner and outer ring is fixedly connected with by self-tapping screw; Described resistor cartridge upper and lower two-layer by insulative cylinders support and connection, the upper end of this insulative cylinders is fixedly connected with upper resistors support, and its lower end is screw thread, connects lower resistors support by height adjusting nut; In described conductor, ring evenly arranges screwed hole, fixed resistance connecting rod in each screwed hole; In described conductor, on ring, current terminal is set, on described insulation outer shroud, voltage terminal is set, this voltage terminal is connected with the resistance connecting rod of same layer by wire.
Preferably, described resistor cartridge levels is also respectively equipped with three eradication edge support columns.
Preferably, in described conductor, ring is ring in red copper, and described insulation outer shroud, insulative cylinders, insulating supporting post are polytetrafluoroethylene parts.
Preferably, in described red copper, the outer wall of ring is provided with a circle triangle groove, by the screwed hole on polytetrafluoroethylene outer shroud, can screw in self-tapping screw.
Preferably, in described red copper, the inwall of ring is provided with some arc grooves, resistance unit can be placed in to this groove.
Preferably, this resistor cartridge also comprises thermostatic oil bath, and resistor cartridge main body is placed in thermostatic oil bath completely.Further, described thermostatic oil bath is selected silicone oil groove.
The technical scheme the utility model proposes, has adopted laterally zygomorphic distributed resistance supporting structure, by N resistance unit parallel connection, compares single resistance, and in equally loaded situation, the load on resistive element is original 1/N; The design of polytetrafluoroethylene outer shroud, forms one to distributed resistance and well supports isolation effect, has avoided resistance and contacting of conductive body around, has ensured the quality of resistance; Polytetrafluoroethylene cylinder and height adjusting nut, can play the effect of adjusting pole height, and the handle while simultaneously also can be used as mobile resistance, plays a protective role to embedded resistive element.Facts have proved, resistor cartridge of the present utility model can obtain the resistance of lower load factor, has met the actual demands such as accurate measurement.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described.Apparently, the accompanying drawing in below describing is only embodiment more of the present utility model, for those of ordinary skills, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 is the ring-shape distribution resistor cartridge structure chart of embodiment mono-of the present utility model;
Fig. 2 is that the ring-shape distribution resistor cartridge of embodiment bis-of the present utility model uses state diagram.
Embodiment
Below with reference to accompanying drawing, the technical scheme of the each embodiment of the utility model is carried out to clear, complete description, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, all other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, belong to the scope that the utility model is protected.
Fig. 1 is the ring-shape distribution resistor cartridge structure chart of the utility model embodiment mono-, as shown in the figure, this ring-shape distribution resistor cartridge is divided into two-layer up and down, double-layer structure full symmetric, comprises ring 1 in red copper, polytetrafluoroethylene outer shroud 2, self-tapping screw 3, polytetrafluoroethylene cylinder 4, current terminal 5, voltage terminal 6, support column 7, height adjusting nut 8, resistance connecting rod 9.
In the present embodiment, in red copper, ring 1 is connected and fixed by self-tapping screw 3 with polytetrafluoroethylene outer shroud 2, in red copper, encircle and on 1, be also evenly provided with some screwed holes, in each screwed hole, fix resistance connecting rod 9, when actual use, resistance unit two ends are fixed on resistance connecting rod 9 corresponding to levels.Simultaneously, upper and lower two-layer resistor cartridge is by 4 support and connection of polytetrafluoroethylene cylinder, the upper end of polytetrafluoroethylene cylinder 4 is fixedly connected with upper resistors support, its lower end is threaded with lower resistors support, the lower end that is polytetrafluoroethylene cylinder 4 is longer threaded portion, connect lower resistors support by height adjusting nut 8, regulate height adjusting nut 8 to adjust support height.In addition, encircle on 1 current terminal 5 is set in red copper, the current terminal during as resistance four line connection arranges voltage terminal 6 on polytetrafluoroethylene outer shroud 2, and this voltage terminal 6 is connected with the resistance connecting rod 9 of same layer by wire.And the resistor cartridge levels of the present embodiment is respectively provided with three support columns 7, to ensure the unsettled and stable of resistance.
In the present embodiment, in red copper, encircle 1 inwall and be also provided with arc groove, when actual use, resistance unit can be placed in to this groove location, to improve space utilization efficiency, dwindle the volume of resistor cartridge.
When the resistor cartridge of the present embodiment uses, can first be connected with polytetrafluoroethylene outer shroud 2 encircling 1 in bilevel red copper, adjust angle, screw self-tapping screw 3 fixing; Again resistance connecting rod 9 is all fixed on the screwed hole between red copper outer annular recess, resistance unit is fixedly connected on to resistance connecting rod 9 corresponding to levels, form distributed frame; Two-layerly connect with polytetrafluoroethylene cylinder 4 upper and lower again, according to the length of resistance unit, regulate height adjusting nut 8 to hold-down nut after proper height; Then, upper and lower two-layer three support columns 7 of respectively setting up, make levels and ground keep enough distances; Select voltage wiring position, by wire, the voltage leading-out terminal 6 on polytetrafluoroethylene outer shroud 2 is connected to this layer of nearest resistance connecting rod 9; From electric current leading-out terminal 5 and voltage leading-out terminal 6 outconnectors, be connected with fine measuring instrument respectively, adopt four ending test characteristics.
In the other embodiment of the utility model, in red copper, encircle 1 outer wall and be provided with a circle triangle groove, by the some screwed holes on polytetrafluoroethylene outer shroud 2, can screw in self-tapping screw 3 and connect more firmly inner and outer ring.
Fig. 2 is that the ring-shape distribution resistor cartridge of embodiment bis-of the present utility model uses state diagram, the resistor cartridge of the present embodiment increases and is provided with thermostatic oil bath 10 on the basis of embodiment mono-, be applicable to the higher situation of low load factor requirement, as shown in the figure, resistor cartridge main body is placed in thermostatic oil bath 10 completely, connect fine measuring instrument 11 by four line connections and carry out resistive performance test, thermostatical oil is wherein silicone oil.
In the above-described embodiments, in red copper, the structural design of ring plays the effect of contact resistance, has guaranteed the distributed frame of resistance, has realized the parallel connection of N resistance, compares single resistance, and in equally loaded situation, the load on resistive element is original 1/N; The design of polytetrafluoroethylene outer shroud, forms one to distributed resistance and well supports isolation effect, has avoided resistance and contacting of conductive body around, has ensured the quality of resistance; Polytetrafluoroethylene cylinder and height adjusting nut, can play the effect of adjusting pole height, and the handle while simultaneously also can be used as mobile resistance, plays a protective role to embedded resistive element.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if to these amendments of the present utility model with within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also comprises these changes and modification interior.
Claims (7)
1. a ring-shape distribution resistor cartridge, is characterized in that, this resistor cartridge is upper and lower two-layer symmetrical structure, and every layer comprises ring (1) in conductor, insulation outer shroud (2), and this inner and outer ring is fixedly connected with by self-tapping screw (3); The upper end of this insulative cylinders (4) is fixedly connected with upper resistors support by insulative cylinders (4) support and connection for described resistor cartridge upper and lower two-layer, and its lower end is screw thread, connects lower resistors support by height adjusting nut (8); In described conductor, ring (1) evenly arranges screwed hole, fixed resistance connecting rod (9) in each screwed hole; In described conductor, on ring (1), current terminal (5) is set, voltage terminal (6) is set on described insulation outer shroud (2), this voltage terminal (6) is connected with the resistance connecting rod (9) of same layer by wire.
2. ring-shape distribution resistor cartridge according to claim 1, is characterized in that, described resistor cartridge levels is respectively equipped with three eradication edge support columns (7).
3. ring-shape distribution resistor cartridge according to claim 2, is characterized in that, in described conductor, ring (1) is ring in red copper, and described insulation outer shroud (2), insulative cylinders (4), insulating supporting post (7) are polytetrafluoroethylene parts.
4. ring-shape distribution resistor cartridge according to claim 3, is characterized in that, in described red copper, the outer wall of ring is provided with a circle triangle groove, by the screwed hole on polytetrafluoroethylene outer shroud, can screw in self-tapping screw (3).
5. ring-shape distribution resistor cartridge according to claim 4, is characterized in that, in described red copper, the inwall of ring is provided with some arc grooves, resistance unit can be placed in to this groove.
6. ring-shape distribution resistor cartridge according to claim 5, is characterized in that, this resistor cartridge also comprises thermostatic oil bath, and resistor cartridge main body is placed in thermostatic oil bath completely.
7. ring-shape distribution resistor cartridge according to claim 6, is characterized in that, described thermostatic oil bath is silicone oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420047230.9U CN203673903U (en) | 2014-01-24 | 2014-01-24 | Circular distributed resistor support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420047230.9U CN203673903U (en) | 2014-01-24 | 2014-01-24 | Circular distributed resistor support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203673903U true CN203673903U (en) | 2014-06-25 |
Family
ID=50970170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420047230.9U Expired - Fee Related CN203673903U (en) | 2014-01-24 | 2014-01-24 | Circular distributed resistor support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203673903U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200940A (en) * | 2014-08-12 | 2014-12-10 | 浙江科成电气有限公司 | Support of arrester |
| CN105788783A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Round can type liquid cooling resistor and production method thereof |
-
2014
- 2014-01-24 CN CN201420047230.9U patent/CN203673903U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200940A (en) * | 2014-08-12 | 2014-12-10 | 浙江科成电气有限公司 | Support of arrester |
| CN104200940B (en) * | 2014-08-12 | 2017-03-29 | 浙江科成电气有限公司 | A kind of support of spark gap |
| CN105788783A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Round can type liquid cooling resistor and production method thereof |
| CN105788783B (en) * | 2016-04-05 | 2017-10-20 | 中国船舶重工集团公司第七一二研究所 | A kind of round can type liquid cooling resistance and its manufacture method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20220124 |