CN205564436U - Control by temperature change resistance - Google Patents
Control by temperature change resistance Download PDFInfo
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- CN205564436U CN205564436U CN201620348469.9U CN201620348469U CN205564436U CN 205564436 U CN205564436 U CN 205564436U CN 201620348469 U CN201620348469 U CN 201620348469U CN 205564436 U CN205564436 U CN 205564436U
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- wire
- resistance
- insulating bar
- temperature resistance
- string holes
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Abstract
The utility model belongs to the technical field of electrical components, a control by temperature change resistance is disclosed, including metal casing (1), the both ends of metal casing (1) are equipped with top cap (9) and bottom (4) respectively, vertical be equipped with insulating rod (8) on the lower surface of top cap (9), the winding is gone up in insulating rod (8) has resistance wire (7), and the top of resistance wire (7) is connected with first wire (12), vertical be equipped with pair metal spring (2) are equipped with between bottom (4) and two metal spring (2) insulating piece (3) on the upper surface of bottom (4), the top of two metal spring (2) is connected with ring (5), and the internal surface of ring (5) is equipped with a plurality of the contact that switches on each other (6) along the circumference, ring (5) cover is on resistance wire (7) of insulating rod (8), be connected with on the contact (6) second wire (13). The utility model is suitable for an operational environment of great electric current, the practicality is strong, the facilitate promotion.
Description
Technical field
The utility model relates to electric elements technical field, especially relates to a kind of temperature resistance.
Background technology
Thermal resistor is a class of sensing element, is divided into positive temperature coefficient temperature-sensitive electricity according to temperature coefficient difference
Resistance device (PTC) and negative temperature coefficient thermistor (NTC).Thermal resistor belongs to semiconductor devices, typical case
Feature is temperature sensitive, shows different resistance values at a temperature of difference.Its operating current is generally micro-
Peace or milliampere level, it is impossible to be directly used in the measurement of temperature-resistance in larger current loop.
Utility model content
The purpose of this utility model is to provide a kind of temperature resistance, solves temperature-sensitive electricity present in prior art
Resistance device cannot be used for the problem of the measurement of temperature-resistance in larger current loop.
In order to achieve the above object, the utility model is achieved by the following technical solutions.
A kind of temperature resistance, including metal shell, metal shell be respectively arranged at two ends with top cover and bottom；Institute
Stating and be vertically provided with insulating bar on the lower surface of top cover, insulating bar is wound with resistance wire, the top of resistance wire is even
It is connected to the first wire；Bimetallic spring, bottom and bimetallic spring vertically it is provided with on the upper surface of described bottom
Between be provided with insulating trip；The top of described bimetallic spring connects annulus, and the inner surface of annulus circumferentially sets
There is the contact of multiple mutual conduction；Annulus is enclosed within the resistance wire of insulating bar；Connect on described contact and have second
Wire.
Preferably, described insulating bar is hollow insulating bar, is axially arranged with magnetic core in hollow insulating bar；
The material of described contact is ferrimagnet.
Preferably, described top cover is provided with the first string holes, the second string holes, described first wire, the second wire
Top cover is passed respectively by the first string holes, the second string holes.
Preferably, it is respectively equipped with insulation cushion rubber in described first string holes, the second string holes.
Preferably, described insulating bar, bimetallic spring lay respectively at the center of top cover, bottom.
Preferably, the material of the active layers of described bimetallic spring is manganin manganin alloy, nichrome, nickel
One in manganeisen or nickel；The material of the passive layer of bimetallic spring is dilval.
Preferably, the material of described insulating bar is polytetrafluoroethylene (PTFE).
Preferably, the material of described metal shell is stainless steel.
Preferably, the material of described resistance wire is nichrome.
The beneficial effects of the utility model are, by the characteristic of expanding with heat and contract with cold of bimetallic spring, make resistance wire with
Contact forms a variable resistor, solves thermal resistor present in prior art and cannot be used for bigger electricity
Flow back to the problem of the measurement of temperature-resistance in road.
Accompanying drawing explanation
With detailed description of the invention, the utility model is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of a kind of temperature resistance of the present utility model；
Fig. 2 is another kind of structural representation of the present utility model.
In figure, 1, metal shell；2, bimetallic spring；3, insulating trip；4, bottom；5, annulus；6、
Contact；7, resistance wire；8, insulating bar；9, top cover；10, the first string holes；11, the second string holes；12、
First wire；13, the second wire；14, magnetic core.
Detailed description of the invention
Reference Fig. 1, the structure of a kind of temperature resistance of the present utility model, including cylindric metal shell 1,
The material of metal shell 1 is stainless steel；Metal shell 1 be respectively arranged at two ends with top cover 9 and bottom 4；Top cover
The center of the lower surface of 9 is vertically provided with insulating bar 8, and the material of insulating bar 8 is polytetrafluoroethylene (PTFE)；Insulation
Being wound with resistance wire 7 on rod 8, the material of resistance wire 7 is nichrome；Top cover 9 is provided with the first string holes
10 and second string holes 11, it is respectively equipped with insulation cushion rubber (not shown) in first string holes the 10, second string holes 11；
The top of resistance wire 7 connects the first wire 12, and first wire 12, first string holes 10 from top cover 9 is worn
Go out.
The center of the upper surface of bottom 4 is vertically provided with bimetallic spring 2, bottom 4 and bimetallic spring 2
Between be provided with insulating trip 3；The top of bimetallic spring 2 connects annulus 5, and the inner surface of annulus 5 is circumferentially
It is provided with the contact 6 of multiple mutual conduction；Annulus 5 is enclosed within the resistance wire 7 of insulating bar 8；Connect on contact 6
Having the second wire 13, second wire 13, second string holes 11 from top cover 9 passes.Wherein, bimetallic bullet
The material of the active layers of spring 2 is the one in manganin manganin alloy, nichrome, nicalloy or nickel；Double
The material of the passive layer of metal spring 2 is dilval.
During measurement, the first wire 12 and the second wire 13 are connected on the circuit of electric current to be measured.Open electricity
Source, electric current flows into resistance wire 7.Owing to electric current can produce heat, bimetallic spring 2 is because temperature change occurs
Dilatancy, promotes annulus 5 to move axially along insulating bar 8, and the contact 6 on annulus 5 connects with resistance wire 7
Touch, form a variable resistor.When bimetallic spring 2 expand at utmost, can be by contact 6
The computing the resistor value formed with resistance wire 7 goes out size of current.After being measured, cut off the first wire 12 and second
Wire 13 two ends electric current, the position that the retraction of bimetallic spring 2 bullet is original.
With reference to Fig. 2, insulating bar 8 can also be hollow insulating bar, is axially arranged with magnetic in hollow insulating bar
Inner core 14；The material of contact 6 is ferrimagnet.Contact 6 is mutual with the magnetic core 14 in insulating bar 8
Produce suction, make contact 6 be attracted on insulating bar 8, be convenient for measuring.
Temperature resistance of the present utility model, by the characteristic of expanding with heat and contract with cold of bimetallic spring 2, makes resistance wire 7
Form a variable resistor with contact 6, can be used for measuring the temperature-resistance value in larger current loop.
Above content is to combine concrete preferred embodiment further detailed description of the utility model,
It cannot be assumed that of the present utility model being embodied as is confined to these explanations.For technology belonging to the utility model
For the those of ordinary skill in field, without departing from the concept of the premise utility, it is also possible to if making
Dry simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. a temperature resistance, it is characterised in that: include metal shell (1), the two of metal shell (1)
End is respectively equipped with top cover (9) and bottom (4)；Insulation vertically it is provided with on the lower surface of described top cover (9)
Rod (8), insulating bar (8) is wound with resistance wire (7), and the top of resistance wire (7) connects first
Wire (12)；Bimetallic spring (2), bottom (4) vertically it is provided with on the upper surface of described bottom (4)
And it is provided with insulating trip (3) between bimetallic spring (2)；The top of described bimetallic spring (2) connects
Annulus (5), the inner surface of annulus (5) is had circumferentially to be provided with the contact (6) of multiple mutual conduction；Annulus
(5) it is enclosed within the resistance wire (7) of insulating bar (8)；The upper connection in described contact (6) has the second wire
(13)。
Temperature resistance the most according to claim 1, it is characterised in that: described insulating bar (8) is empty
The insulating bar of the heart, is axially arranged with magnetic core (14) in hollow insulating bar；The material of described contact (6)
Matter is ferrimagnet.
Temperature resistance the most according to claim 1, it is characterised in that: described top cover (9) is provided with
First string holes (10), the second string holes (11), described first wire (12), the second wire (13) are respectively
Top cover (9) is passed by the first string holes (10), the second string holes (11).
Temperature resistance the most according to claim 3, it is characterised in that: described first string holes (10),
Second string holes is respectively equipped with insulation cushion rubber in (11).
Temperature resistance the most according to claim 1, it is characterised in that: described insulating bar (8), double gold
Belong to spring (2) and lay respectively at top cover (9), the center of bottom (4).
Temperature resistance the most according to claim 1, it is characterised in that: described bimetallic spring (2)
The material of active layers be the one in manganin manganin alloy, nichrome, nicalloy or nickel；Institute
The material of the passive layer stating bimetallic spring (2) is dilval.
Temperature resistance the most according to claim 1, it is characterised in that: the material of described insulating bar (8)
Matter is polytetrafluoroethylene (PTFE).
Temperature resistance the most according to claim 1, it is characterised in that: described metal shell (1)
Material is stainless steel.
Temperature resistance the most according to claim 1, it is characterised in that: the material of described resistance wire (7)
Matter is nichrome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348469.9U CN205564436U (en) | 2016-04-24 | 2016-04-24 | Control by temperature change resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348469.9U CN205564436U (en) | 2016-04-24 | 2016-04-24 | Control by temperature change resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205564436U true CN205564436U (en) | 2016-09-07 |
Family
ID=56807049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620348469.9U Expired - Fee Related CN205564436U (en) | 2016-04-24 | 2016-04-24 | Control by temperature change resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205564436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784287A (en) * | 2016-04-24 | 2016-07-20 | 中国大唐集团科学技术研究院有限公司西北分公司 | Temperature control resistor, and device and method of detecting leakage of expansion joints in heat supply pipeline |
| CN111555159A (en) * | 2020-05-25 | 2020-08-18 | 河南豫丰电力工程有限公司 | Electric power control device |
-
2016
- 2016-04-24 CN CN201620348469.9U patent/CN205564436U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784287A (en) * | 2016-04-24 | 2016-07-20 | 中国大唐集团科学技术研究院有限公司西北分公司 | Temperature control resistor, and device and method of detecting leakage of expansion joints in heat supply pipeline |
| CN105784287B (en) * | 2016-04-24 | 2020-03-31 | 中国大唐集团科学技术研究院有限公司西北分公司 | Temperature control resistor, and device and method for detecting leakage of expansion joint in heat supply pipeline |
| CN111555159A (en) * | 2020-05-25 | 2020-08-18 | 河南豫丰电力工程有限公司 | Electric power control 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20180424 |