CN106448982A - Heat-resistant potentiometer - Google Patents
Heat-resistant potentiometer Download PDFInfo
- Publication number
- CN106448982A CN106448982A CN201610748451.2A CN201610748451A CN106448982A CN 106448982 A CN106448982 A CN 106448982A CN 201610748451 A CN201610748451 A CN 201610748451A CN 106448982 A CN106448982 A CN 106448982A
- Authority
- CN
- China
- Prior art keywords
- potentiometer
- resistance
- graphite
- heat resistant
- sliding contact
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
- H01C10/34—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path the contact or the associated conducting structure riding on collector formed as a ring or portion thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
Abstract
The invention discloses a heat resistant potentiometer. The heat resistant potentiometer comprises a shell and a potentiometer main body arranged in the shell, wherein the shell adopts a cylindrical sealed structure, and a shaft sleeve is arranged on the top of the shell; a graphite sealing layer is arranged on the inner side of the shaft sleeve; and a heat expansion resistant coating layer is arranged on the surface of the graphite sealing layer. According to the heat resistant potentiometer provided by the invention, by setting a resistor into a folded line structure, the maximum value of the resistor is effectively improved; by enabling a sliding contact to be connected with a bending part of the resistor, different precisions of the potentiometer can be set according to the bending quantity and degree of the resistor, so that convenience in use is improved; and in addition, by virtue of the graphite sealing layer and the heat expansion resistant coating layer, severe heat expansion can be withstood, so that the service life of the potentiometer is long.
Description
Technical field
The invention belongs to potentiometer technical field, particularly relate to a kind of heat resistant type potentiometer.
Background technology
Potentiometer be have three exits, resistance can by certain Changing Pattern regulation resistive element.Potentiometer is usual
It is made up of resistive element and moveable brush.Current potentiometer is the element being covered in potentiometer by a case mostly, logical
Cross the rotation pole pair potentiometer stretching in case to be adjusted, but existing rotational potentiometer lubricity difference, the resistance to heat expansion of sealant
Poor performance, it is impossible to bear hot environment, causes dust, steam etc. to enter inside potentiometer, reduces the service life of potentiometer.
Content of the invention
The goal of the invention of the present invention is：In order to solve problem above present in prior art, the present invention proposes one
Heat resistant type potentiometer.
The technical scheme is that：A kind of heat resistant type potentiometer, including housing and the potentiometer master being arranged in housing
Body；Described housing uses cylindrical enclosed construction, and its top is provided with axle sleeve；It is provided with graphite encapsulation layer inside described axle sleeve,
Described graphite encapsulation layer surface configuration has resistance to heat expansion coating；Described potentiometer main body includes the carrier board being loaded with resistance, described load
Body plate is patty, and it is arranged on above-mentioned housing bottom；Described resistance is fold-line-shaped circular ring structure, and it is arranged on described carrier board
Upper surface；Being additionally provided with sliding contact on described carrier board, described sliding contact one end is fixed on described by contact support
Carrier board center, the other end is slidably connected with described resistance；The fixing end of described sliding contact is also connected with rotation bar, described turn
Lever passes through described upper shell top axle sleeve and is arranged on described casing center axis；Described rotation bar include metal inside and
Non-graphite outer layers.
Further, described contact support upper surface annularly side face is provided with the locating piece of multiple projection, described cunning
Movable contact lower surface is provided with the multiple and corresponding locating slot of described locating piece.
Further, described graphite encapsulation layer uses expanded graphite.
Further, described resistance to heat expansion coating uses the compounding substances of mullite, silicon and boron carbide.
Further, the described metal inside rotating bar and non-graphite outer layers are by gluing connection.
The invention has the beneficial effects as follows：The heat resistant type potentiometer of the present invention, by resistance is set to fold-line-shaped structure, has
Effect increases the maximum of resistance, and is connected with the bending part of resistance by sliding contact, can be according to the bending number of resistance
Amount and degree arrange the different accuracy of potentiometer, improve the convenience of use；Recycling graphite encapsulation layer and resistance to heat expansion coating
Serious thermal expansion can be born, so that the service life of potentiometer is long.
Brief description
Fig. 1 is the heat resistant type potentiometer schematic cross-section of the present invention.
Fig. 2 is the potentiometer main body top view of the present invention.
Wherein, housing 1, axle sleeve 1-1, graphite encapsulation layer 1-2, resistance to heat expansion coating 1-3, potentiometer main body 2, carrier board 2-1,
Resistance 2-2, sliding contact 2-3, contact support 2-4, rotate bar 2-5.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
As it is shown in figure 1, be the heat resistant type potentiometer schematic cross-section of the present invention.A kind of heat resistant type potentiometer, including housing 1
And the potentiometer main body 2 being arranged in housing 1；Described housing 1 uses cylindrical enclosed construction, and its top is provided with axle sleeve 1-1；
Being provided with graphite encapsulation layer 1-2 inside described axle sleeve 1-1, described graphite encapsulation layer 1-2 surface configuration has resistance to heat expansion coating 1-3；
Described potentiometer main body 2 includes the carrier board 2-1 being loaded with resistance 2-2, and described carrier board 2-1 is patty, and it is arranged on above-mentioned
Bottom housing 1；Described resistance 2-2 is fold-line-shaped circular ring structure, and it is arranged on described carrier board 2-1 upper surface；Described carrier board
Being additionally provided with sliding contact 2-3 on 2-1, described sliding contact 2-3 one end is fixed on described carrier board by contact support 2-4
2-1 center, the other end is slidably connected with described resistance 2-2；The fixing end of described sliding contact 2-3 is also connected with rotation bar 2-5,
Described rotation bar 2-5 passes through described upper shell 1-1 top axle sleeve 1-3 and is arranged on described housing 1 central axis；Described rotation
Bar includes metal inside and non-graphite outer layers.
The metal inside of the rotation bar 2-5 of the present invention and non-graphite outer layers are by gluing connection, and non-graphite outer layers is soft graphite,
There is chemical stability, the anti-erosion of native graphite, outside the characteristics such as lubricity is good, also there is special flexibility and elasticity, have one
Fixed sealing property.The graphite encapsulation layer 1-2 of the present invention uses expanded graphite, and resistance to heat expansion coating 1-3 uses mullite, silicon
And the compounding substances of boron carbide.
As in figure 2 it is shown, be potentiometer main body 2 top view of the present invention.The resistance 2-2 of the potentiometer main body 2 of the present invention is
Fold-line-shaped circular ring structure, its lines are uniformly or non-uniformly bar shaped, at the side near the carrier board 2-1 center of circle, its kink
Divide and be slidably connected with sliding contact 2-3, the different essences of potentiometer can be set by arranging the bending quantity of resistance 2-2 and degree
Degree.So that sliding contact 2-3 is more reliable and more stable in sliding process, the present invention is on contact support 2-4 upper surface edge
Ring-shaped periphery is provided with the locating piece of multiple projection, sliding contact 2-3 lower surface is provided with multiple and described locating piece corresponding
Locating slot, locating piece here and locating slot are all and the resistance 2-2 bending part that is connected with sliding contact 2-3 and carrier board 2-
1 center of circle on the same line, thus ensure that the stability when being connected for the sliding contact 2-3 with resistance 2-2 bending part.This
Bright by rotate rotate bar 2-5 drive sliding contact 2-3 rotate on contact support 2-4, when sliding contact 2-3 with resistance
2-2 bending part utilizes the locating piece of contact support 2-4 upper surface and the locating slot button of sliding contact 2-3 lower surface when connecting
Closing fixing, convenient to use, stability is high.
Those of ordinary skill in the art it will be appreciated that embodiment described here be to aid in reader understanding this
Bright principle, it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.This area
Those of ordinary skill can enlighten according to these technology disclosed by the invention that to make various other without departing from essence of the present invention each
Planting concrete deformation and combination, these deform and combine still within the scope of the present invention.
Claims (5)
1. a heat resistant type potentiometer, it is characterised in that include housing and the potentiometer main body being arranged in housing；Described housing
Using cylindrical enclosed construction, its top is provided with axle sleeve；It is provided with graphite encapsulation layer, described graphite grazing inside described axle sleeve
Layer surface configuration has resistance to heat expansion coating；Described potentiometer main body includes the carrier board being loaded with resistance, and described carrier board is patty,
It is arranged on above-mentioned housing bottom；Described resistance is fold-line-shaped circular ring structure, and it is arranged on described carrier board upper surface；Described load
Being additionally provided with sliding contact on body plate, described sliding contact one end is fixed on described carrier board center by contact support, separately
One end is slidably connected with described resistance；The fixing end of described sliding contact is also connected with rotation bar, and described rotation bar passes through described
Upper shell top axle sleeve is simultaneously arranged on described casing center axis；Described rotation bar includes metal inside and non-graphite outer layers.
2. heat resistant type potentiometer as claimed in claim 1, it is characterised in that described contact support upper surface annularly side face
Being provided with the locating piece of multiple projection, described sliding contact lower surface is provided with the multiple and corresponding locating slot of described locating piece.
3. heat resistant type potentiometer as claimed in claim 2, it is characterised in that described graphite encapsulation layer uses expanded graphite.
4. heat resistant type potentiometer as claimed in claim 3, it is characterised in that described resistance to heat expansion coating employing mullite,
Silicon and the compounding substances of boron carbide.
5. heat resistant type potentiometer as claimed in claim 4, it is characterised in that the metal inside of described rotation bar and non-graphite outer layers
By gluing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748451.2A CN106448982A (en) | 2016-08-29 | 2016-08-29 | Heat-resistant potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748451.2A CN106448982A (en) | 2016-08-29 | 2016-08-29 | Heat-resistant potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448982A true CN106448982A (en) | 2017-02-22 |
Family
ID=58181664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610748451.2A Pending CN106448982A (en) | 2016-08-29 | 2016-08-29 | Heat-resistant potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448982A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146322A (en) * | 1976-04-08 | 1979-03-27 | Canon Kabushiki Kaisha | Variable resistance |
| JP2005072300A (en) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Ind Co Ltd | Variable resistor |
| US20070163341A1 (en) * | 2006-01-16 | 2007-07-19 | Yazaki Corporation | Sliding fluid level-detecting device |
| CN103971873A (en) * | 2014-05-29 | 2014-08-06 | 昆山福烨电子有限公司 | Potentiometer |
| CN105810374A (en) * | 2016-05-25 | 2016-07-27 | 常州市武进凯利达电子有限公司 | Potentiometer with thermal-expansion-resistant sealing layer |
-
2016
- 2016-08-29 CN CN201610748451.2A patent/CN106448982A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146322A (en) * | 1976-04-08 | 1979-03-27 | Canon Kabushiki Kaisha | Variable resistance |
| JP2005072300A (en) * | 2003-08-26 | 2005-03-17 | Matsushita Electric Ind Co Ltd | Variable resistor |
| US20070163341A1 (en) * | 2006-01-16 | 2007-07-19 | Yazaki Corporation | Sliding fluid level-detecting device |
| CN103971873A (en) * | 2014-05-29 | 2014-08-06 | 昆山福烨电子有限公司 | Potentiometer |
| CN105810374A (en) * | 2016-05-25 | 2016-07-27 | 常州市武进凯利达电子有限公司 | Potentiometer with thermal-expansion-resistant sealing layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |