CN105810374A - Potentiometer with thermal-expansion-resistant sealing layer - Google Patents
Potentiometer with thermal-expansion-resistant sealing layer Download PDFInfo
- Publication number
- CN105810374A CN105810374A CN201610350794.3A CN201610350794A CN105810374A CN 105810374 A CN105810374 A CN 105810374A CN 201610350794 A CN201610350794 A CN 201610350794A CN 105810374 A CN105810374 A CN 105810374A
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- CN
- China
- Prior art keywords
- potentiometer
- resistance
- flatulence
- graphite
- heat type
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
- H01C1/024—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being hermetically sealed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
- Details Of Resistors (AREA)
Abstract
The invention discloses a potentiometer with a thermal-expansion-resistant sealing layer.The potentiometer comprises a lower shell and an upper shell.A shaft sleeve is arranged on the top of the upper shell.The graphite sealing layer is arranged on the inner surface of the shaft sleeve.A thermal-expansion-resistant coating is arranged on the surface of the graphite sealing layer.A cavity is formed between the lower shell and the upper shell and internally provided with a rotary shaft, a conductive rotary sheet, a first fixed-connection pin sheet, a second fixed-connection pin sheet, a movable-connection pin sheet and an arc-shaped resistor.The rotary shaft is matched with the shaft sleeve.The rotary shaft comprises a metal core and a graphite outer layer.The first fixed-connection pin sheet and the second fixed-connection pin sheet are connected to the two ends of the arc-shaped resistor respectively.In this way, the potentiometer is good in sealing performance; the sealing layer can bear severe thermal expansion, so the potentiometer is long in service life.
Description
Technical field
The present invention relates to potentiometer field, particularly relate to a kind of potentiometer with the sealant of resistance to flatulence of heat type.
Background technology
Potentiometer be there are three exits, resistive element that resistance can regulate by certain Changing Pattern, potentiometer is generally made up of resistive element and moveable brush.Potentiometer is installed in the enterprising enforcement use of various equipment, plays adjustment effect, existing rotational potentiometer poor sealing performance, the resistance to flatulence of heat type poor performance of sealant, hot environment can not be born, cause that dust, steam etc. enter inside potentiometer, the service life of potentiometer can be reduced.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of potentiometer with the sealant of resistance to flatulence of heat type, good seal performance, and sealant can bear serious thermal expansion, long service life.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide a kind of potentiometer with the sealant of resistance to flatulence of heat type, it is characterized in that, including: lower house, upper shell, described upper shell top is provided with axle sleeve, described axle sleeve inner surface is provided with a circle graphite encapsulation layer, described graphite encapsulation layer surface configuration has a resistance to flatulence of heat type coating, a cavity is formed between described lower house and upper shell, described cavity inside is provided with rotating shaft, conduction revolving fragment, first fixed pin sheet, second fixed pin sheet, dynamic pin sheet and circular arc resistance body, described rotating shaft matches with described axle sleeve, described rotating shaft includes metal inside and non-graphite outer layers, the first described fixed pin sheet and the second fixed pin sheet are connected to the two ends of circular arc resistance body.
In a preferred embodiment of the present invention, described graphite encapsulation layer material is expanded graphite.
In a preferred embodiment of the present invention, the described compounding substances that resistance to flatulence of heat type coating is mullite, silicon and boron carbide.
In a preferred embodiment of the present invention, described resistance to flatulence of heat type coating is sprayed by dry heat treatment.
In a preferred embodiment of the present invention, between described graphite encapsulation layer and axle sleeve, and it is connected by epoxide-resin glue is gluing between metal inside with non-graphite outer layers.
The invention has the beneficial effects as follows: potentiometer good seal performance provided by the present invention, sealant can bear serious thermal expansion, long service life.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of a kind of potentiometer one preferred embodiment with the sealant of resistance to flatulence of heat type of the present invention；
In accompanying drawing, the labelling of each parts is as follows: the resistance to flatulence of heat type coating of 1-lower house, 2-upper shell, 3-axle sleeve, 4-graphite encapsulation layer, 5-, 6-rotating shaft, 7-metal inside, 8-non-graphite outer layers.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of potentiometer with the sealant of resistance to flatulence of heat type, it is characterized in that, including: lower house 1, upper shell 2, described upper shell 2 top is provided with axle sleeve 3, described axle sleeve 3 inner surface is provided with a circle graphite encapsulation layer 4, described graphite encapsulation layer 4 surface configuration has a resistance to flatulence of heat type coating 5, a cavity is formed between described lower house 1 and upper shell 2, described cavity inside is provided with rotating shaft 6, conduction revolving fragment, first fixed pin sheet, second fixed pin sheet, dynamic pin sheet and circular arc resistance body, described rotating shaft 6 matches with described axle sleeve 3, described rotating shaft 6 includes metal inside 7 and non-graphite outer layers 8, the first described fixed pin sheet and the second fixed pin sheet are connected to the two ends of circular arc resistance body.
Described graphite encapsulation layer 4 material is expanded graphite, and expanded graphite is also known as soft graphite, and this graphite, except having the characteristics such as the chemical stability of native graphite, anti-erosion, also has special flexibility and elasticity, is a kind of desirably encapsulant.
The described compounding substances that resistance to flatulence of heat type coating 5 is mullite, silicon and boron carbide, this coating can not only bear serious flatulence of heat type, also has stronger oxidation resistance.
Described resistance to flatulence of heat type coating 5 is sprayed by dry heat treatment.
Between described graphite encapsulation layer 4 and axle sleeve 3, and it is connected by epoxide-resin glue is gluing between metal inside 7 with non-graphite outer layers 8.
Potentiometer good seal performance provided by the present invention, sealant can bear serious thermal expansion, long service life.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all in like manner include in the scope of patent protection of the present invention.
Claims (5)
1. a potentiometer with the sealant of resistance to flatulence of heat type, it is characterized in that, including: lower house, upper shell, described upper shell top is provided with axle sleeve, described axle sleeve inner surface is provided with a circle graphite encapsulation layer, described graphite encapsulation layer surface configuration has a resistance to flatulence of heat type coating, a cavity is formed between described lower house and upper shell, described cavity inside is provided with rotating shaft, conduction revolving fragment, first fixed pin sheet, second fixed pin sheet, dynamic pin sheet and circular arc resistance body, described rotating shaft matches with described axle sleeve, described rotating shaft includes metal inside and non-graphite outer layers, the first described fixed pin sheet and the second fixed pin sheet are connected to the two ends of circular arc resistance body.
2. the potentiometer with the sealant of resistance to flatulence of heat type according to claim 1, it is characterised in that described graphite encapsulation layer material is expanded graphite.
3. the potentiometer with the sealant of resistance to flatulence of heat type according to claim 1, it is characterised in that the described compounding substances that resistance to flatulence of heat type coating is mullite, silicon and boron carbide.
4. the potentiometer with the sealant of resistance to flatulence of heat type according to claim 1, it is characterised in that described resistance to flatulence of heat type coating is sprayed by dry heat treatment.
5. the potentiometer with the sealant of resistance to flatulence of heat type according to claim 1, it is characterised in that between described graphite encapsulation layer and axle sleeve, and be connected by epoxide-resin glue is gluing between metal inside with non-graphite outer layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610350794.3A CN105810374A (en) | 2016-05-25 | 2016-05-25 | Potentiometer with thermal-expansion-resistant sealing layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610350794.3A CN105810374A (en) | 2016-05-25 | 2016-05-25 | Potentiometer with thermal-expansion-resistant sealing layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105810374A true CN105810374A (en) | 2016-07-27 |
Family
ID=56451849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610350794.3A Pending CN105810374A (en) | 2016-05-25 | 2016-05-25 | Potentiometer with thermal-expansion-resistant sealing layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105810374A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448982A (en) * | 2016-08-29 | 2017-02-22 | 成都灯岛科技有限公司 | Heat-resistant potentiometer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09246019A (en) * | 1996-03-04 | 1997-09-19 | Alps Electric Co Ltd | Rotary variable resistor |
| CN103400673A (en) * | 2013-07-31 | 2013-11-20 | 广东风华高新科技股份有限公司 | Preparation system for side circumferential segmented-electrode annular voltage dependent resistor |
| CN105070431A (en) * | 2015-07-30 | 2015-11-18 | 常州市武进凯利达电子有限公司 | Rotary shaft potentiometer with good sealing performance |
| CN105114438A (en) * | 2015-09-02 | 2015-12-02 | 无锡市东赫金属制品有限公司 | Thermal-expansion-resistant bolt |
| CN205789344U (en) * | 2016-05-25 | 2016-12-07 | 常州市武进凯利达电子有限公司 | A kind of potentiometer with the sealant of resistance to flatulence of heat type |
-
2016
- 2016-05-25 CN CN201610350794.3A patent/CN105810374A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09246019A (en) * | 1996-03-04 | 1997-09-19 | Alps Electric Co Ltd | Rotary variable resistor |
| CN103400673A (en) * | 2013-07-31 | 2013-11-20 | 广东风华高新科技股份有限公司 | Preparation system for side circumferential segmented-electrode annular voltage dependent resistor |
| CN105070431A (en) * | 2015-07-30 | 2015-11-18 | 常州市武进凯利达电子有限公司 | Rotary shaft potentiometer with good sealing performance |
| CN105114438A (en) * | 2015-09-02 | 2015-12-02 | 无锡市东赫金属制品有限公司 | Thermal-expansion-resistant bolt |
| CN205789344U (en) * | 2016-05-25 | 2016-12-07 | 常州市武进凯利达电子有限公司 | A kind of potentiometer with the sealant of resistance to flatulence of heat type |
Non-Patent Citations (1)
| Title |
|---|
| 边炳鑫: "《石墨加工与石墨材料》", 31 May 2014, 中国矿业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448982A (en) * | 2016-08-29 | 2017-02-22 | 成都灯岛科技有限公司 | Heat-resistant potentiometer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |