CN204202771U - Wire temperature sensor - Google Patents
Wire temperature sensor Download PDFInfo
- Publication number
- CN204202771U CN204202771U CN201420743748.6U CN201420743748U CN204202771U CN 204202771 U CN204202771 U CN 204202771U CN 201420743748 U CN201420743748 U CN 201420743748U CN 204202771 U CN204202771 U CN 204202771U
- Authority
- CN
- China
- Prior art keywords
- resistance wire
- heat pipe
- wire
- moving casing
- housing
- 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
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a kind of wire temperature sensor.Wire temperature sensor comprises housing, copper heat pipe, moving casing, movable brush, first to fourth resistance wire and A/D converter, described heat pipe is fixing on the housing, described heat pipe part is positioned at described housing, described moving casing is set on described heat pipe, described moving casing can slide by heat pipe relatively, described heat pipe coordinates with described moving casing hermetic seal, described movable brush is fixed on described moving casing, described first to fourth resistance wire is all fixed in housing, one end of described first resistance wire and one end of the 4th resistance wire are electrically connected with A/D converter, one end of described second resistance wire is electrically connected with one end of the 3rd resistance wire, described movable brush is all connected with first to fourth resistance wire, its first to fourth resistance wire is connected, and movable brush can move relative to first to fourth resistance wire.The utility model wire temperature sensor detection sensitivity is high.
Description
Technical field
The utility model relates to sensor technical field, particularly relates to a kind of wire temperature sensor.
Background technology
Because temperature and daily life are closely related, therefore people start the exploitation of measurement for temperature and temperature sensor very early.Existing temperature sensor is of a great variety a few days ago, and temperature-measurement principle is different, every temperature-measurement principle having the physics of temperature effect or chemical process can be used as temperature sensor.The thermometric time of conventional temperature-sensing element can be postponed, and therefore temperature survey sensitivity is not good; In addition, if fixed sleeving hyperabsorption heat energy itself, the temperature data measured by this temperature-sensing element cannot reflect the actual temperature of object under test, causes thermometric precision to reduce, and the amplitude of temperature error may improve.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of highly sensitive wire temperature sensor.
For solving the problem, the utility model provides a kind of wire temperature sensor, described wire temperature sensor comprises housing, copper heat pipe, moving casing, movable brush, first to fourth resistance wire and A/D converter, described heat pipe is fixing on the housing, described heat pipe part is positioned at described housing, described moving casing is set on described heat pipe, described moving casing can slide by heat pipe relatively, described heat pipe coordinates with described moving casing hermetic seal, described movable brush is fixed on described moving casing, described first to fourth resistance wire is all fixed in housing, one end of described first resistance wire and one end of the 4th resistance wire are electrically connected with A/D converter, one end of described second resistance wire is electrically connected with one end of the 3rd resistance wire, described movable brush is all connected with first to fourth resistance wire, its first to fourth resistance wire is connected, and movable brush can move relative to first to fourth resistance wire.
Further, a dividing plate is provided with in described housing, housing is divided into the first cavity and the second cavity by described dividing plate, and described A/D converter is positioned at described first cavity, and described moving casing, movable brush and described first to fourth resistance wire are all positioned at described second cavity.
Further, described movable brush comprises four carbon brush circles and four fixed bars, four carbon brush circles are separately fixed at one end of described four fixed bars, four fixed bars are all fixed on moving casing, four carbon brush circles corresponding first to fourth resistance wire respectively, and two carbon brush circle electrical connections of corresponding first resistance wire and the second resistance wire, two carbon brush circle electrical connections of corresponding 3rd resistance wire and the 4th resistance wire.
Further, described heat pipe is arranged with two fixed heads, heat pipe is fixing on the housing by fixed head.
The utility model wire temperature sensor adopts heat pipe made of copper, and the heat transmitting of heat pipe is good, and the heat itself absorbed is less, reduces the error because self heat absorption brings; Meanwhile, four resistance wires are exaggerated the subtle change of temperature further, make its testing result more accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the better embodiment of the utility model wire temperature sensor.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the better embodiment of the utility model wire temperature sensor comprises housing 1, copper heat pipe 2, moving casing 3, movable brush 4, first to the 3rd resistance wire the 51,52,53 and the 4th resistance wire (the 4th resistance wire is not shown) and A/D converter 6.Described heat pipe 2 is fixed on described housing 1, and specifically, heat pipe 2 is arranged with two fixed heads 21, heat pipe 2 is fixed on described housing 1 by fixed head 21.Described heat pipe 2 part is positioned at described housing 1, described moving casing 3 is set on described heat pipe 2, described moving casing 3 can slide by heat pipe 2 relatively, described heat pipe 2 coordinates with the hermetic seal of described moving casing 3, described movable brush 4 is fixed on described moving casing 3, first to the 3rd resistance wire 51, 52, 53 and the 4th resistance wire be all fixed in housing 1, described first resistance wire 51 and the 4th resistance wire upper end are electrically connected with A/D converter 6, the upper end of described second resistance wire 52 is electrically connected with the upper end of the 3rd resistance wire 53, described movable brush 4 all with first to fourth resistance wire 51, 52, 53 connect, make its first to the 3rd resistance wire 51, 52, 53 and the 4th resistance wire series connection, and movable brush 4 can the relative first to the 3rd resistance wire 51, 52, 53 and the 4th resistance wire move.
A dividing plate 11 is provided with in described housing 1, housing is divided into the first cavity 12 and the second cavity 13 by described dividing plate, described A/D converter 6 is positioned at described first cavity 12, and described moving casing 3, movable brush 4 and the described first to the 3rd resistance wire the 51,52,53 and the 4th resistance wire are all positioned at described second cavity 13.
Described movable brush 4 comprises one end that four carbon brush circles 41 and four fixed bars, 42, four carbon brush circles 41 are separately fixed at described four fixed bars 42, and four fixed bars 42 are all fixed on moving casing 3.Four carbon brush circles 41 corresponding first to the 3rd resistance wire the 51,52,53 and the 4th resistance wire respectively, wherein two carbon brush circles 41 of corresponding first resistance wire 51 and the second resistance wire 52 are electrically connected, and two carbon brush circles 41 of corresponding 3rd resistance wire 53 and the 4th resistance wire are electrically connected.
In closed container there is following relation in temperature and pressure:
PV=nRT, wherein P is the pressure in closed container, and V is the volume of closed container, and n is amount of substance (amount because of something is constant, therefore can be understood as constant), and R is constant, and T is the temperature in closed container.N and R is constant, and when the pressure P in closed container is constant, so volume of a container V and temperature T is directly proportional, and when the temperature T namely in closed container raises, the volume V of closed container increases; When temperature T in closed container reduces, the volume V of closed container reduces.
A/D converter 6 electric signal is changed into digital signal commonly use components and parts, therefore, do not repeat them here.When environment temperature raises, heat pipe 2 is heated and the air heats in its heat pipe 2 and moving casing 3 is expanded, its moving casing 3 is moved upward, moving casing 3 drives movable brush 4 to move upward, movable brush 4 moves upward, the resistance of the resistance that its first to the 3rd resistance wire the 51,52,53 and the 4th resistance wire is together in series reduces, and electric signal like this reduces, and the digital signal that A/D converter 6 converts to also reduces.Otherwise the signal that then A/D converter 6 exports strengthens.
Compared with existing temperature sensor, adopt copper heat pipe 2, the good heat conductivity of copper, the heat of absorption is little, reduces because of the error brought of self absorbing heat.When movable brush 4 slides, it is more obvious that the electric signal that A/D converter 6 receives compares the change that a resistance wire brings, and more can accurately detect environment temperature.
These are only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing the utility model instructions and accompanying drawing content to do; directly or indirectly be used in the technical field that other are relevant, all in like manner within scope of patent protection of the present utility model.
Claims (4)
1. a wire temperature sensor, it is characterized in that: described wire temperature sensor comprises housing, copper heat pipe, moving casing, movable brush, first to fourth resistance wire and A/D converter, described heat pipe is fixing on the housing, described heat pipe part is positioned at described housing, described moving casing is set on described heat pipe, described moving casing can slide by heat pipe relatively, described heat pipe coordinates with described moving casing hermetic seal, described movable brush is fixed on described moving casing, described first to fourth resistance wire is all fixed in housing, one end of described first resistance wire and one end of the 4th resistance wire are electrically connected with A/D converter, one end of described second resistance wire is electrically connected with one end of the 3rd resistance wire, described movable brush is all connected with first to fourth resistance wire, its first to fourth resistance wire is connected, and movable brush can move relative to first to fourth resistance wire.
2. wire temperature sensor as claimed in claim 1, it is characterized in that: in described housing, be provided with a dividing plate, housing is divided into the first cavity and the second cavity by described dividing plate, described A/D converter is positioned at described first cavity, and described moving casing, movable brush and described first to fourth resistance wire are all positioned at described second cavity.
3. wire temperature sensor as claimed in claim 1, it is characterized in that: described movable brush comprises four carbon brush circles and four fixed bars, four carbon brush circles are separately fixed at one end of described four fixed bars, four fixed bars are all fixed on moving casing, four carbon brush circles corresponding first to fourth resistance wire respectively, and two carbon brush circle electrical connections of corresponding first resistance wire and the second resistance wire, two carbon brush circle electrical connections of corresponding 3rd resistance wire and the 4th resistance wire.
4. wire temperature sensor as claimed in claim 1, is characterized in that: described heat pipe is arranged with two fixed heads, and heat pipe is fixing on the housing by fixed head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743748.6U CN204202771U (en) | 2014-12-02 | 2014-12-02 | Wire temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743748.6U CN204202771U (en) | 2014-12-02 | 2014-12-02 | Wire temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204202771U true CN204202771U (en) | 2015-03-11 |
Family
ID=52660717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420743748.6U Expired - Fee Related CN204202771U (en) | 2014-12-02 | 2014-12-02 | Wire temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204202771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848957A (en) * | 2014-12-02 | 2015-08-19 | 重庆斯凯力科技有限公司 | Resistance wire temperature sensor |
-
2014
- 2014-12-02 CN CN201420743748.6U patent/CN204202771U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848957A (en) * | 2014-12-02 | 2015-08-19 | 重庆斯凯力科技有限公司 | Resistance wire temperature sensor |
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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: 20150311 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |