CN207966601U - A kind of potentiometer waterproof construction - Google Patents
A kind of potentiometer waterproof construction Download PDFInfo
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- CN207966601U CN207966601U CN201820059186.1U CN201820059186U CN207966601U CN 207966601 U CN207966601 U CN 207966601U CN 201820059186 U CN201820059186 U CN 201820059186U CN 207966601 U CN207966601 U CN 207966601U
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- potentiometer
- groove
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Abstract
The utility model discloses a kind of potentiometer waterproof constructions, are related to potentiometer technical field, and the potentiometer waterproof construction includes potentiometer ontology, plastic shell and sealing ring；The potentiometer ontology includes integrally formed rotation axis and pedestal, processes fluted in the rotation axis, and the sealing ring is socketed in the groove, and the pedestal is fixed on circuit boards；The plastic shell is equipped with the boss of inner hollow, and the rotation axis passes through the boss by the lower section of the boss, and gap is formed between the rotation axis and the inner wall of the boss, and the sealing ring is located in the gap.The technical solution that the utility model embodiment provides can make common potentiometer achieve the effect that waterproof by being formed to squeeze between the sealing ring and the boss and the groove, and simple in structure, at low cost.
Description
Technical field
The utility model is related to potentiometer technical fields, more particularly to a kind of potentiometer waterproof construction.
Background technology
Potentiometer is that there are three the resistive elements that exit, resistance value can be adjusted by certain changing rule for tool.Potentiometer conduct
A kind of common electric elements are widely used in the regulating switch of various electrical equipments, and current potentiometer is by one mostly
A case covers the element in potentiometer, and current potential is adjusted by the adjusting rod stretched into case.
And most of potentiometer is all non-water-tight, small part waterproof potentiometer interior design complexity and price at present
Height, cost do not have advantage.
Utility model content
The purpose of this utility model is that being directed to technical problem of the existing technology, a kind of potentiometer waterproof knot is provided
Structure, mainly solves that existing most of potentiometer is non-watertight and the interior design of small part waterproof potentiometer is complicated, price is high
Problem.
In order to solve posed problems above, the technical solution adopted in the utility model is：
The utility model provides a kind of potentiometer waterproof construction, the potentiometer waterproof construction include potentiometer ontology,
Plastic shell and sealing ring；
The potentiometer ontology includes integrally formed rotation axis and pedestal, and fluted, institute is processed in the rotation axis
It states sealing ring to be socketed in the groove, the pedestal is fixed on circuit boards；
The plastic shell is equipped with the boss of inner hollow, and the rotation axis is passed through described convex by the lower section of the boss
Platform, and gap is formed between the rotation axis and the inner wall of the boss, the sealing ring is located in the gap.
As a further improvement of the utility model, the groove be annular groove, the shape of the sealing ring with it is described recessed
The shape of slot is adapted.
As a further improvement of the utility model, the inside and outside circle of the sealing ring be tightly attached to respectively the groove and
On the inner wall of the boss.
The rotation axis is rotary part as a further improvement of the utility model,.
As a further improvement of the utility model, when the rotation axis rotates, the sealing ring inner ring with it is described recessed
It is contacted between slot and the inner ring of the sealing ring is formed between extruding and the sealing ring outer ring and the inner wall of the boss
It contacts and the outer ring of the sealing ring is formed and squeeze.
The sealing ring inner ring and the groove and the sealing ring outer ring as a further improvement of the utility model,
Total amount of compression with the boss inner wall is 0.35-0.45mm.
It is coated on the boss inner wall for being protected to the sealing ring as a further improvement of the utility model,
The protective layer of shield.
The inside and outside circle of the sealing ring and the groove and the boss as a further improvement of the utility model,
The contact position of inner wall be coated with lubricant.
The ranging from 35-45 degree of the hardness of the sealing ring as a further improvement of the utility model,.
Limiting slot is provided on the boss inner wall as a further improvement of the utility model, the limiting slot is cut
Face shapes and sizes and the cross sectional shape and size of the sealing ring outer ring are adapted, and the inside and outside circle difference of the sealing ring is tight
It is attached on the groove and the limiting slot.
Compared with prior art, the beneficial effects of the utility model are：
In the embodiments of the present invention, the sealing ring is socketed in the groove by the potentiometer waterproof construction
In, and the rotation axis passes through the boss by the lower section of the boss, and between the rotation axis and the inner wall of the boss
Gap is formed, the sealing ring is set in the gap, to prevent from seeping water in the gap.What the utility model embodiment provided
Technical solution can be such that common potentiometer reaches by being formed to squeeze between the sealing ring and the boss and the groove
The effect of waterproof, and it is simple in structure, it is at low cost.
Description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the explosive view of potentiometer waterproof construction described in the utility model embodiment；
Fig. 2 is the sectional view of potentiometer waterproof construction described in the utility model embodiment；
Fig. 3 is the sectional view of potentiometer waterproof construction described in another embodiment of the utility model.
| 10 | Potentiometer ontology |
| 11 | Rotation axis |
| 110 | Groove |
| 12 | Pedestal |
| 20 | Plastic shell |
| 21 | Boss |
| 211 | Limiting slot |
| 22 | Gap |
| 30 | Sealing ring |
Specific implementation mode
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can in many different forms come in fact
It is existing, however it is not limited to embodiment described herein.Make public affairs to the utility model on the contrary, purpose of providing these embodiments is
The understanding for opening content is more thorough and comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article and the technical field of the utility model
The normally understood meaning of technical staff is identical.Terminology used in the description of the utility model herein is intended merely to retouch
State the purpose of specific embodiment, it is not intended that in limitation the utility model.
Shown in referring to Figures 1 and 2, the utility model embodiment provides a kind of potentiometer waterproof construction, the potentiometer
Waterproof construction includes potentiometer ontology 10, plastic shell 20 and sealing ring 30.
The potentiometer ontology 10 includes integrally formed rotation axis 11 and pedestal 12, is machined in the rotation axis 11
Groove 110, the sealing ring 30 are socketed in the groove 110, and the pedestal 12 is fixed in circuit board (not shown)；It is described
Plastic shell 20 is equipped with the boss 21 of inner hollow, and the rotation axis 11 passes through the boss by the lower section of the boss 21
21, and gap 22 is formed between the rotation axis 11 and the inner wall of the boss 21, the sealing ring 30 is located at the gap 22
In, the sealing ring 30 seeps water for preventing in the gap 22, and the potentiometer ontology 10 is avoided to intake in use,
Lead to its internal electronic component damage or failure, to influence to use.
In the embodiments of the present invention, the groove 110 be annular groove, the shape of the sealing ring 30 with it is described recessed
The shape of slot 110 is adapted, i.e., the described sealing ring 30 is ring type seal, and the sealing ring 30 is completely accommodated in the groove
In 110, it will not fall off so that the sealing ring 30 is sleeved in use in the groove 110.One or more can
In the embodiment of energy, the section of 30 inner ring of the sealing ring and the bottom section of the groove 110 are disposed as arcuation, to prevent
Only 30 inner ring of the sealing ring generates excessive stress concentration with 110 bottom of the groove and wears, to protect the sealing
Circle 30, improves the service life of the sealing ring 30.
In the embodiments of the present invention, the sealing ring 30 is 30 inside and outside circle of the sealing ring in radial thickness
The distance between, and the sealing ring 30 radial thickness be more than 110 bottom of the groove to 21 inner wall of the boss away from
From that is, there is bulge-structure in the outer ring of the sealing ring 30 relative to the outer surface of the rotation axis 11, and when 30 sets of the sealing
When being connected on the rotation axis 11, the bulge-structure is tightly attached to the inner wall of the boss 21, i.e. the inside and outside circle of the sealing ring 30
It is tightly attached to respectively on the inner wall of the groove 110 and the boss 21, for being filled in the rotation axis 11 and the boss
In the gap 22 formed between 21 inner wall, to achieve the effect that sealing and waterproof.
In the embodiments of the present invention, the area of section of the boss 21 from top to bottom gradually increases, when described turn
When the diameter of moving axis 11 is constant, the gap 22 formed between 21 inner wall of the rotation axis 11 and the boss from top to bottom gradually increases
Greatly, avoid the shaking of the rotation axis 11 that the rotation axis 11 and the inner wall of the boss 21 is caused to collide.In some realities
It applies in example, the specification of the sealing ring 30 can be selected to the distance of 21 inner wall of the boss according to 110 bottom of the groove, with
The inside and outside circle of the sealing ring 30 is set to be tightly attached to respectively on the inner wall of the groove 110 and the boss 21, in this application
It is defined not to this.
In the embodiments of the present invention, the rotation axis 11 is rotary part, and the rotation axis 11 can be in the seam
It is rotated in gap 22, to change the current potential size of the potentiometer ontology 10.Further, since the rotation axis 11 and the boss 21
The gap 22 formed between inner wall from top to bottom gradually increase, to avoid the rotation axis 11 in rotary course with it is described convex
21 inner wall of platform collides, and the electronics inside the potentiometer ontology 10 is even damaged so as to cause the damage of the rotation axis 11
Component.
When the rotation axis 11 rotates, contacted between 30 inner ring of the sealing ring and the groove 110 and to described close
The inner ring of seal 30, which is formed between extruding and 30 outer ring of the sealing ring and the inner wall of the boss 21, to be contacted and to described close
The outer ring of seal 30, which is formed, to be squeezed, so that the gap 22 formed between 21 inner wall of the rotation axis 11 and the boss is completely close
Envelope leads to its internal electronic component damage or failure to avoid the potentiometer ontology 10 from intaking in use.
Specifically, when the rotation axis 11 is in the state of rotation, the inner ring of the sealing ring 30 by the groove 110 pressure
F1, the outer ring of the sealing ring 30 by 21 inner wall of the boss pressure f 2；The outer ring of the sealing ring 30 is because described in
It is also formed and is squeezed with the inner wall of 21 inner wall of the boss while pressure f 2 of 21 inner wall of boss is expanded to both sides, further, since
The outer ring of the sealing ring 30 is expanded to both sides, i.e., the inner ring of the sealing ring 30 is also formed with the groove 110 and squeezed.Therefore
When the rotation axis 11 rotates, the radial load that the groove 110 acts on the sealing ring 30 is more converted to the sealing
The deformation of circle 30, and the inside and outside circle of the sealing ring 30 is made to be extruded on the inner wall of the groove 110 and the boss 21, it can
It is sealed with the gap 22 formed with 21 inner wall of the boss to the groove 110, advantageously ensures that the close of the gap 22
Envelope and waterproof effect.
When 30 inner ring of the sealing ring and the groove 110 and the inner wall of the sealing ring 30 outer ring and the boss 21
Total amount of compression it is smaller when, gap and the sealing ring 30 between the inner ring of the sealing ring 30 and the groove 110
It cannot be fully sealed between 21 inner wall of outer ring and the boss, can still there is small gap, i.e., the gap can still seep water, to
The electronic component inside the potentiometer ontology 10 is set to intake, to influence to use；When 30 inner ring of the sealing ring with it is described recessed
When slot 110 and 30 outer ring of the sealing ring and larger total amount of compression of the inner wall of the boss 21, the rotation axis 11 rotates
Resistance it is too big, i.e., the rotation axis 11 will be locked and cannot be rotated, so as to cause 10 nothing of potentiometer ontology
Method is by rotating the current potential to change itself.Therefore, in the embodiments of the present invention, 30 inner ring of the sealing ring with it is described
Groove 110 and 30 outer ring of the sealing ring and total amount of compression of 21 inner wall of the boss are 0.35-0.45mm, can reached
While preferable sealing effect, keep the rotation axis 11 that can smoothly rotate.In one or more kinds of possible embodiment party
In formula, in order to not influence the rotation of the rotation axis 11, the inside and outside circle of the sealing ring 30 and the groove 110 and described
The contact position of the inner wall of boss 21 is coated with lubricant, and the lubricant includes lubricating oil, lubricating grease etc., described close for reducing
Friction between the inside and outside circle and the inner wall of the groove 110 and the boss 21 of seal 30, to improve the sealing ring
30 service life.
Those skilled in the art is it is to be appreciated that the state of the potentiometer waterproof construction illustrated in Fig. 2 after mounting
A kind of only possible state.The state of the potentiometer waterproof construction after mounting depends on several factors, such as described recessed
To the pressure of the sealing ring 30 when slot 110 and 21 inner wall of the boss squeeze.Based on according to the common knowledge of this field and/or
Conventional techniques should all belong to the application to the change for the unsubstantiality that the sealing ring or the camera lens module are made
Protection domain.
Refering to what is shown in Fig. 3, another embodiment for the utility model discloses a kind of potentiometer waterproof construction, below to request
The technical solution of protection illustrates.It is provided on 21 inner wall of the boss illustrated in Fig. 3 for limiting the sealing ring 30
The limiting slot 211 of outer ring position, the cross sectional shape of the cross sectional shape and size and 30 outer ring of the sealing ring of the limiting slot 211
It is adapted with size, the inside and outside circle of the sealing ring 30 is tightly attached to respectively on the groove 110 and the limiting slot 211, i.e.,
The inside and outside circle of the sealing ring 30 is respectively embedded into the groove 110 and the limiting slot 211, for being filled in described turn
In the gap 22 formed between moving axis 11 and the inner wall of the boss 21, to achieve the effect that sealing and waterproof.
When the rotation axis 11 rotates, contacted between 30 inner ring of the sealing ring and the groove 110 and to described close
It is contacted between the inner ring formation extruding of seal 30 and 30 outer ring of the sealing ring and the limiting slot 211 of the boss 21 and right
The outer ring of the sealing ring 30, which is formed, to be squeezed, so that the gap 22 formed between 21 inner wall of the rotation axis 11 and the boss is complete
It is hermetically sealed, to avoid the potentiometer ontology 10 from intaking in use, cause its internal electronic component damage or
Failure.Specifically, when the rotation axis 11 is in the state of rotation, the inner ring of the sealing ring 30 is by the groove 110
Pressure f 3, the outer ring of the sealing ring 30 by the limiting slot 211 pressure f 4；The inner ring of the sealing ring 30 is because by institute
State also to be formed with the groove 110 while the pressure f 3 of groove 110 is expanded to both sides and squeeze, the outer ring of the sealing ring 30 because
It is also formed and is squeezed with the limiting slot 211 while expansion to both sides by the pressure f 4 of the limiting slot 211.The sealing ring
Also flexural deformation while 30 inside and outside circle is expanded to both sides.Since the groove 110 and the limiting slot 211 are in certain journey
The position of 30 inside and outside circle of the sealing ring is defined on degree, therefore in the assembling process of the sealing ring 30, the groove
110 and the limiting slot 211 respectively with 30 inside and outside circle of the sealing ring formation closely contact, with realization to the rotation axis
The gap 22 formed between 11 and 21 inner wall of the boss is sealed, and advantageously ensures that sealing and the waterproof in the gap 22
Effect.
Those skilled in the art is not it is to be appreciated that if constrain the position of 30 inside and outside circle of the sealing ring, the sealing
It encloses 30 inside and outside circles and is possible to excessively expansion in assembling process, taken off from the rotation axis 11 so as to cause the sealing ring 30
It falls, or, it is possible to the mistake formed between the groove 110 and the inside and outside circle of the limiting slot 211 and the sealing ring 30
Degree squeezes, and to damage the sealing ring 30, the potentiometer ontology 10 is caused to be intake in use, leads to its inside
Electronic component damages or failure, to influence to use.In the present embodiment, described recessed by being arranged in the rotation axis 11
Slot 110, and the limiting slot 221 is set on the inner wall of the boss 21, constrain the inside and outside circle of the sealing ring 30
Position, be conducive to prevent while ensureing sealing effect the inside and outside circle of the sealing ring 30 respectively with the groove 110 and
The limiting slot 211 is by excessive extruding.
In the embodiments of the present invention, in order to protect the sealing ring 30, that improves the sealing ring 30 uses the longevity
Life, the section and the bottom section of the groove 110 of 30 inside and outside circle of the sealing ring and the bottom of the limiting slot 211
Section is arcuation, to prevent the inside and outside circle of the sealing ring 30 bottom with the groove 110 and the limiting slot 211 respectively
Portion generates excessive stress concentration and wears.Certainly, in one or more kinds of possible embodiments, the groove 110 and institute
Stating limiting slot 211 can be adjusted according to the shape of the sealing ring 30, alternatively, the groove 110 and the limiting slot
Depth in 211 Working position, slot can be prepared by the specification of the sealing ring 30, in this application not to this into
Row limits.
When 30 inner ring of the sealing ring and the groove 110 and 30 outer ring of the sealing ring and the limiting slot 211
When total amount of compression is smaller, gap and the sealing ring 30 between the inner ring of the sealing ring 30 and the groove 110 it is outer
It cannot be fully sealed between circle and the limiting slot 211, can still have small gap, i.e., the gap can still seep water, to make
Electronic component water inlet inside the potentiometer ontology 10, to influence to use；When 30 inner ring of the sealing ring and the groove
110 and 30 outer ring of the sealing ring and the limiting slot 211 total amount of compression it is larger when, resistance that the rotation axis 11 rotates
Too big, i.e., the rotation axis 11 will be locked and cannot be rotated, and can not be passed through so as to cause the potentiometer ontology 10
It rotates to change the current potential of itself.Therefore, in the embodiments of the present invention, 30 inner ring of the sealing ring and the groove
110 and total amount of compression of 30 outer ring of the sealing ring and the limiting slot 211 be 0.35-0.45mm, can reach preferable
Sealing effect while, keep the rotation axis 11 that can smoothly rotate.In one or more kinds of possible embodiments,
In order to not influence the rotation of the rotation axis 11, inside and outside circle and the groove 110 and the limiting slot of the sealing ring 30
211 contact position is coated with lubricant, and the lubricant includes lubricating oil, lubricating grease etc., for reducing the sealing ring 30
Friction between inside and outside circle and the inner wall of the groove 110 and the limiting slot 211, to improve the sealing ring 30
Service life.
Those skilled in the art is it is to be appreciated that the state of the camera lens module illustrated in Fig. 3 after mounting is one
The possible state of kind.Based on according to the common knowledge and/or conventional techniques of this field to the sealing ring or the mirror
The change for the unsubstantiality that head mould group is made should all belong to the protection domain of the application.
In the embodiments of the present invention, the sealing ring 30 is silica gel sealing ring, and the silica gel sealing ring has bullet
Property it is good, sealing effect is good the features such as, and the sealing ring 30 is solid construction so that the sealing ring 30 will not seep water, to
Water is kept not penetrate into the electronic component inside the potentiometer ontology 10 from the sealing ring.Certainly, a kind of or
In a variety of possible embodiments, in order to further improve sealing and waterproof effect, the sealing ring 30 can be used absolutely
Edge material preparation, such as insulation silica gel etc., alternatively, the sealing ring 30 can be according to specific demand using other insulation materials
Material, such as electro-insulating rubber.
In addition, in the embodiments of the present invention, it is coated with for the sealing ring 30 on 21 inner wall of the boss
The protective layer (not shown) protected, the protective layer is makrolon (ABS) layer or engineering plastics (PC) layer etc., so as to work as
The when of squeezing is formed between the outer ring of the sealing ring 30 and the inner wall of the boss 21 can reduce the abrasion of the sealing ring 30；
Alternatively, being coated with the protective layer (not shown) for being protected to the sealing ring 30, the protection on the limiting slot 211
Layer is makrolon (ABS) layer or engineering plastics (PC) layer etc., so that when the outer ring of the sealing ring 30 and the limiting slot 211
Between form the when of squeezing and can reduce the abrasion of the sealing ring 30.Certainly, in one or more kinds of possible embodiments,
The inner wall of the boss 21 or the limiting slot 211 can by makrolon or engineering plastics or between be mixed with, as long as
The outer ring of the sealing ring 30 can be made to form the abrasion for reducing the sealing ring 30 when extruding, the utility model has no this
Limitation.
In the embodiments of the present invention, the hardness of the sealing ring 30 determines sealing ring sealing and waterproof indirectly
Whether the quality of effect, when the hardness of the sealing ring 30 is small, the sealing ring 30 is easily deformed in extrusion process, to
Formation gap 22 between the rotation axis 11 and the inner wall of the boss 21 cannot be fully sealed, so that its sealing and waterproof
Effect be deteriorated, and the small sealing ring of hardness is easier to damage, and service life is short；When the hardness of the sealing ring 30 is big
When, the sealing ring 30 is not easy to squeeze in extrusion process, so that shape between the rotation axis 11 and the inner wall of the boss 21
Can also there be small gap at gap 22, be deteriorated so as to cause the effect of sealing and waterproof.Therefore, described in the utility model
The ranging from 35-45 degree of the hardness of sealing ring 30 has preferably sealing and waterproof effect.In one or more possible realities
It applies in example, the hardness of the sealing ring 30 can be by measurements such as hardness detecting instruments, to ensure that it is suitable hard that accurate, inerrably selection is arrived
The sealing ring of degree improves working efficiency.
According to embodiment hereinbefore it is found that when being contacted between 30 inner ring of the sealing ring and the groove 110 and to institute
The inner ring for stating sealing ring 30 forms extruding and 30 outer ring of the sealing ring and 21 inner wall of the boss or the limiting slot
When being contacted between 211 and forming extruding to the outer ring of the sealing ring 30, the sealing ring 30 will deform.Due to described close
Seal 30 is that prepared by solid and impermeable silica gel material, therefore 30 inside and outside circle of the sealing ring can be respectively to the groove
110 and the boss 21 inner wall be radially expanded extruding.In addition when the sealing ring 30 deforms, the sealing ring 30
It is coated with lubricant between inside and outside circle and 21 inner wall of the groove 110 and the boss, you can to reach preferable sealing
And in the case of waterproof effect, the smooth rotation of the rotation axis 11 ensure that.In the mistake that the sealing ring 30 deforms
The inside and outside circle of Cheng Zhong, the sealing ring 30 will be in close contact with the groove 110 and 21 inner wall of the boss respectively, be had
Conducive to the sealing effect ensured between the groove 110 and 21 inner wall of the boss.
Have compared with prior art for the potentiometer waterproof construction of potentiometer waterproof in the present embodiment following excellent
Gesture：
1, compared with common potentiometer, potentiometer ontology 10 described in the present embodiment by the sealing ring 30 with it is described convex
It is formed and is squeezed between platform 21 or the limiting slot 211 and the groove 110, to reach waterproof effect, structure design is simple.
2, compared with the potentiometer of interior waterproof, since potentiometer is if necessary to realize interior waterproof effect, potentiometer
Space wants small, and designs complexity, of high cost；And potentiometer ontology i0 described in the present embodiment need not realize that interior waterproof can reach
To the effect of waterproof, and it is simple in structure, it is at low cost.
In the embodiments of the present invention, the sealing ring 30 is socketed in the groove by the potentiometer waterproof construction
In 110, and the rotation axis 11 passes through the boss 21, and the rotation axis 11 and the boss by the lower section of the boss 21
Gap 22 is formed between 21 inner wall, the sealing ring 30 is set in the gap 22, to prevent infiltration in the gap 22.This
The technical solution that utility model embodiment provides can be by between the sealing ring 30 and the boss 21 and the groove 110
Being formed to squeeze makes common potentiometer achieve the effect that waterproof, and simple in structure, at low cost.
In the present embodiment, those skilled in the art will be appreciated that the terms "include", "comprise" or its it is any its
He is intended to non-exclusive inclusion by variant, in addition to comprising those of listed element, but also may include being not explicitly listed
Other element；The nouns of locality such as involved front, rear, top, and bottom are to be located in figure with structure in attached drawing and structure is mutual
Position define, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the use of the noun of locality is not answered
Limit the claimed range of the application.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
Apply each technical characteristic in example it is all can with combination be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But simultaneously therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of potentiometer waterproof construction, which is characterized in that the potentiometer waterproof construction includes potentiometer ontology, plastic shell
And sealing ring；
The potentiometer ontology includes integrally formed rotation axis and pedestal, processed in the rotation axis it is fluted, it is described close
Seal is socketed in the groove, and the pedestal is fixed on circuit boards；
The plastic shell is equipped with the boss of inner hollow, and the rotation axis passes through the boss by the lower section of the boss,
And gap is formed between the rotation axis and the inner wall of the boss, the sealing ring is located in the gap.
2. potentiometer waterproof construction according to claim 1, it is characterised in that：The groove is annular groove, the sealing
The shape of circle and the shape of the groove are adapted.
3. potentiometer waterproof construction according to claim 1 or 2, it is characterised in that：The inside and outside circle of the sealing ring is distinguished
It is tightly attached on the inner wall of the groove and the boss.
4. potentiometer waterproof construction according to claim 1, it is characterised in that：The rotation axis is rotary part.
5. potentiometer waterproof construction according to claim 4, it is characterised in that：It is described close when the rotation axis rotates
It is contacted between seal inner ring and the groove and extruding and the sealing ring outer ring and institute is formed to the inner ring of the sealing ring
It states to contact between the inner wall of boss and form the outer ring of the sealing ring and squeeze.
6. potentiometer waterproof construction according to claim 5, it is characterised in that：The sealing ring inner ring and the groove with
And total amount of compression of the sealing ring outer ring and the boss inner wall is 0.35-0.45mm.
7. potentiometer waterproof construction according to claim 1, it is characterised in that：On the boss inner wall be coated with for pair
The protective layer that the sealing ring is protected.
8. potentiometer waterproof construction according to claim 1, it is characterised in that：The inside and outside circle of the sealing ring with it is described
The contact position of the inner wall of groove and the boss is coated with lubricant.
9. potentiometer waterproof construction according to claim 1, it is characterised in that：The hardness of the sealing ring is ranging from
35-45 degree.
10. potentiometer waterproof construction according to claim 1, it is characterised in that：It is provided with limit on the boss inner wall
Slot, the cross sectional shape and size of the limiting slot and the cross sectional shape and size of the sealing ring outer ring are adapted, the sealing
The inside and outside circle of circle is tightly attached to respectively on the groove and the limiting slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820059186.1U CN207966601U (en) | 2018-01-15 | 2018-01-15 | A kind of potentiometer waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820059186.1U CN207966601U (en) | 2018-01-15 | 2018-01-15 | A kind of potentiometer waterproof construction |
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| Publication Number | Publication Date |
|---|---|
| CN207966601U true CN207966601U (en) | 2018-10-12 |
Family
ID=63733111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820059186.1U Active CN207966601U (en) | 2018-01-15 | 2018-01-15 | A kind of potentiometer waterproof construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047633A (en) * | 2018-01-15 | 2019-07-23 | 深圳市三诺数字科技有限公司 | A kind of potentiometer waterproof construction |
-
2018
- 2018-01-15 CN CN201820059186.1U patent/CN207966601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047633A (en) * | 2018-01-15 | 2019-07-23 | 深圳市三诺数字科技有限公司 | A kind of potentiometer waterproof construction |
| CN110047633B (en) * | 2018-01-15 | 2024-05-17 | 深圳市三诺数字科技有限公司 | Waterproof structure of potentiometer |
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