CN215731446U - Knob switch and electronic equipment - Google Patents

Abstract

The application provides a knob switch and electronic equipment, and relates to the field of auxiliary accessories of the electronic equipment, wherein the knob switch comprises a knob, a lining and a rotary potentiometer; the rotary potentiometer is provided with a connecting rod, and the lining is connected with the connecting rod in an interference fit manner; the knob is provided with a knob groove, and the lining is connected with the knob groove in an interference fit manner. The electronic equipment comprises the knob switch. The utility model provides a rotary switch, through the inside lining respectively with the knob groove connecting rod interference fit fixed connection makes knob fixed connection in on the rotatory potentiometre, make up into rotary switch, the operation is not glued to the assembly process need not the point, and the maintenance of disassembling in the rotary switch later stage of being convenient for has reduced the disability rate of disassembling maintenance back material, has improved the reliability that rotary switch used for a long time.

Description

Knob switch and electronic equipment

Technical Field

The application relates to the field of auxiliary accessories of electronic equipment, in particular to a knob switch and electronic equipment.

Background

The knob switch is an important component which is widely applied to various electronic devices and realizes the adjustment of functions such as volume, light and the like. At present, a knob switch on an electronic digital device based on rotation of a rotary potentiometer fixes a knob and a connecting rod on the rotary potentiometer together in a dispensing mode, but the knob switch fixed by dispensing has the defects that the knob switch is difficult to disassemble during disassembly and repair, materials are easy to scrap, the adhesiveness of a dispensing position is reduced after long-term use, the reliability of the knob switch is reduced, and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the application provides a knob switch and electronic equipment.

The application provides the following technical scheme: a knob switch comprises a knob, a lining and a rotary potentiometer; the rotary potentiometer is provided with a connecting rod, and the inner bushing is arranged on the connecting rod and is connected with the connecting rod in an interference fit manner; the knob is provided with a knob groove, and the lining is arranged in the knob groove and is connected with the knob groove in an interference fit manner.

In a possible implementation mode, the inner liner is provided with an interference structure, and the interference structure protrudes out of the outer surface of the inner liner and is obliquely and obliquely arranged.

In a possible implementation manner, the inner liner is provided with a plurality of interference structures, and the plurality of interference structures are circumferentially arranged around the outer side of the inner liner.

In a possible implementation mode, a positioning piece is arranged on the lining, a positioning groove matched with the positioning piece is arranged on the knob, the positioning groove is communicated with the knob groove, and the positioning piece is used for positioning when the lining is connected with the knob groove and preventing the knob from deviating in the rotating process.

In a possible implementation mode, two positioning pieces are symmetrically arranged on the lining, and two matched positioning grooves are symmetrically arranged on the knob.

In a possible implementation mode, a limiting structure is arranged in the through hole of the lining, a matching part matched with the connecting rod is arranged on the connecting rod, and the matching part and the limiting structure are in interference fit to increase the reliability of the fixation of the lining and improve the tensile stripping strength.

In a possible embodiment, an end of the liner adjacent to the inner wall of the knob groove is provided with an elastic member.

In a possible embodiment, the surface of the knob is provided with a pattern, and the pattern is used for increasing the contact area of fingers and the knob and improving the friction force.

In a possible embodiment, the surface of the knob is provided with a pointer for observing the amount of rotation of the knob.

In a second aspect, the present application further provides an electronic device including the rotary switch described in any one of the above.

Compared with the prior art, the beneficial effects of the application are that:

the utility model provides a rotary switch, through the inside lining respectively with the knob groove connecting rod interference fit fixed connection makes knob fixed connection in on the rotatory potentiometre, make up into rotary switch, the operation is not glued to the assembly process need not the point, and the maintenance of disassembling in the rotary switch later stage of being convenient for has reduced the disability rate of disassembling maintenance back material, has improved the reliability that rotary switch used for a long time.

In order to make the aforementioned objects, features and advantages of the present application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is an exploded view of a rotary switch according to an embodiment of the present application;

FIG. 2 illustrates a cross-sectional view of a rotary switch according to an embodiment of the present application;

FIG. 3 shows a schematic structural view of a liner according to an embodiment of the present application;

FIG. 4 illustrates a rear view of the liner according to an embodiment of the present application;

FIG. 5 illustrates a top view of a rotary potentiometer according to an embodiment of the present application;

fig. 6 shows a schematic structural diagram of the knob according to an embodiment of the present application.

Description of the main element symbols:

100-knob switch; 10-knob; 11-knob slot; 12-positioning grooves; 13-pattern; 14-a pointer; 20-lining; 21-interference structure; 22-a positioning element; 23-an elastic member; 24-a limit structure; 25-a through hole; 30-a rotary potentiometer; 31-a connecting rod; 311-a mating portion; 312-chamfer.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1 to 4, a knob switch 100 is provided according to an embodiment of the present disclosure. The knob switch 100 is used to adjust a function on the electronic device.

As shown in fig. 1 and 2, the rotary switch 100 includes a rotary knob 10, a liner 20, and a rotary potentiometer 30. The lining 20 is of a cylindrical structure, a knob groove 11 is formed in one side of the knob 10, the lining 20 is inserted into the knob groove 11, and the outer side of the lining 20 is in interference fit with the inner wall of the knob groove 11, so that the lining 20 is fixedly connected into the knob groove 11. The rotary potentiometer 30 is fixedly connected with a connecting rod 31, the lining 20 is sleeved on the connecting rod 31, and the connecting rod 31 is in interference fit with the through hole 25 on the inner side of the lining 20, so that the connecting rod 31 is fixed in the through hole 25. Through the inside lining 20 insert in the knob groove 11, the connecting rod 31 inserts in the through-hole 25, inside lining 20 respectively with knob groove 11, connecting rod 31 interference fit is connected, makes knob 10 fixed connection in rotatory potentiometre 30 is last, the combination forms required knob switch 100.

As shown in fig. 3 to 4, an interference structure 21 is provided on the liner 20. The interference structure 21 is located on the outer side surface of the liner 20 and protrudes outward in the radial direction of the through hole 25. The interference structure 21 is along the axial direction of through-hole 25 extends, and along in the axial direction of through-hole 25, the protruding height of interference structure 21 increases gradually, and is preferred, the outside convex inclined plane of interference structure 21 with the contained angle that the axis of through-hole 25 formed is 1.5 degrees. When the inner liner 20 is inserted into the knob groove 11, the height of the interference structure 21 in the radial direction of the through hole 25 is gradually increased, and finally, the outer side of the inner liner 20 is connected with the knob groove 11 in an interference fit manner. Namely, the liner 20 is inserted into the knob groove 11 with a clearance fit at the initial stage and gradually becomes an interference fit as the insertion amount increases. The design facilitates the liner 20 to be inserted into the knob groove 11, and prevents the phenomenon that the liner 20 cannot be inserted into the knob groove 11 due to the fact that the interference amount is too large when the interference structure 21 is inserted at the beginning.

In some embodiments, the interference structure 21 is provided on the outer surface of the inner liner 20 along the entire circumference. Without limitation, it is understood that in other embodiments, the outer side surface of the liner 20 is provided with four interference structures 21, which are symmetrically distributed around the axial direction of the through hole 25 and are intermittently arranged with respect to each other, so that four sections of the interference structures 21 on the liner 20 are in interference fit with the knob groove 11, and other areas are in clearance fit, so as to prevent the liner 20 and the knob groove 11 from being unable to be assembled due to an excessively large interference area.

In some embodiments, the length of the interference structure 21 is equal to the distance between the two ends of the liner 20. Without limitation, it is understood that in other embodiments, the length of the interference structure 21 is less than the distance between the two ends of the liner 20, and the operator may select the length and the position of the interference structure 21 according to actual needs.

In some embodiments, the interference structure 21 is integrally formed with the liner 20 when manufactured. Without being limited thereto, it is understood that in other embodiments, the interference structure 21 may be fixed to the outer side surface of the liner 20 by means of gluing.

As shown in fig. 1, in some embodiments, a positioning element 22 is disposed on an outer side surface of the liner 20, the positioning element 22 and the liner 20 are integrally formed, a corresponding positioning groove 12 is disposed on the knob 10, and the positioning groove 12 is communicated with the knob groove 11. The positioning element 22 can be inserted into the positioning groove 12, and is in clearance fit with the positioning groove 12, and the positioning element 22 is in mutual fit with the positioning groove 12, so as to be used for positioning when the lining 20 is inserted into the knob groove 11, and prevent the deviation phenomenon of the knob 10 in the rotating process.

The positioning member 22 extends in the axial direction of the through hole 25 at the outer surface of the liner 20, and protrudes outward in the radial direction of the through hole 25.

In some embodiments, the outer side surface of the inner liner 20 is provided with a single positioning member 22, and the positioning member 22 may be located on the interference structure 21 or in the gap between the two interference structures 21. It is understood, however, that in other embodiments, a plurality of positioning elements 22 may be disposed on the outer side surface of the inner lining 20, for example, two positioning elements 22 symmetrically distributed around the through hole 25 may be disposed, which may effectively improve the assembly efficiency of the inner lining 20 and the anti-deviation capability of the knob 10.

In some embodiments, as shown in fig. 4, an elastic member 23 is disposed on an end of the inner liner 20 close to the inner wall of the knob slot 11, the elastic member 23 and the inner liner 20 are integrally formed, and the elastic member 23 is disposed around a circumference of the end of the inner liner 20. The elastic member 23 is used to prevent the liner 20 from contacting the inner wall of the knob groove 11 too much when inserted into the knob groove 11.

In some embodiments, the material of the liner 20 is an elastomeric material. The inner liner 20 is made of TPE (Thermoplastic Elastomer), and the TPE has the characteristics of high elasticity and high strength, so that the inner liner 20 is not easily damaged when being in interference fit with the knob 10 and the connecting rod 31, and the purpose of assembly and fixation is achieved. Without limitation, it is understood that in other embodiments, the inner liner 20 may be a TPU (Thermoplastic polyurethane elastomer) material or a silicone material, and the inner liner 20 may not be easily damaged when it is interference-fitted with other components.

The rotary potentiometer 30 is fixedly connected with a connecting rod 31, and the connecting rod 31 is fixedly connected with the inner side of the inner liner 20 through the through hole 25 in an interference fit manner. The connecting rod 31 is used for being fixedly connected with the lining 20, so that the connecting rod 31 is fixed in the knob groove 11, and finally the knob 10 is assembled on the rotary potentiometer 30 to form the knob switch 100.

In some examples, the lining 20 is made of an elastic material, the connecting rod 31 is made of a hard material, the inner diameter of the through hole 25 is slightly smaller than the diameter of the connecting rod 31, and when the connecting rod 31 is inserted into the through hole 25, the connecting rod 31 and the through hole 25 are fixedly connected in an interference fit manner by virtue of the elasticity of the lining 20.

This implementation knob switch 100, through lining 20 outside surface sets up interference structure 21 makes lining 20 with knob 10 interference fit fixed connection, lining 20 is inboard through-hole 25 with connecting rod 31 interference fit fixed connection makes knob 10 with lining 20 and rotatory potentiometre 30 assembly forms completely knob switch 100. The assembly process of the knob switch 100 does not need dispensing operation, the interference fit fixing mode is convenient for disassembly and maintenance when the knob switch 100 is damaged, the rejection rate of materials during disassembly is reduced, and the reliability of long-term use of the knob switch 100 is improved.

Example two

Referring to fig. 3 to fig. 6, the present embodiment provides a knob switch 100 for adjusting functions of an electronic device. The present embodiment is an improvement on the technology of the first embodiment, and compared with the first embodiment, the difference is that:

as shown in fig. 3 to 5, a limiting structure 24 is disposed in the through hole 25, the connecting rod 31 has a matching portion 311, and the matching portion 311 and the limiting structure 24 are in interference fit to increase the reliability of fixing the liner 20 and improve the pull-out resistance.

The shape of the fitting portion 311 is a cross section cut along the axial direction by a cylinder, the limiting structure 24 is arranged on the inner wall of the through hole 25, the fitting portion 311 is connected with the limiting structure 24 in an interference fit manner, and the interference magnitude at the fitting portion 311 is larger than that of the other surfaces of the connecting rod 31, so that the fitting portion 311 is connected with the lining 20 more tightly.

Preferably, a gap is formed in the middle of the limiting structure 24, so that the whole surface of the limiting structure 24 is not in interference fit connection with the inner wall of the through hole 25, and the connecting rod 31 cannot be inserted into the through hole 25 due to an overlarge interference area.

In some embodiments, the retention structure 24 is integrally formed with the liner 20 when it is manufactured. Without being limited thereto, it is understood that in other embodiments, the position-limiting structure 24 may be fixed to the inner wall of the through hole 25 inside the inner liner 20 by means of adhesive bonding.

In some embodiments, an end of the connecting rod 31 remote from the rotary potentiometer 30 is provided with a chamfer 312. The chamfer 312 makes the connecting rod 31 be in clearance fit with the inner wall of the through hole 25 when the connecting rod is inserted at the beginning, and gradually becomes interference fit after the insertion amount is increased, so that the connecting rod 31 is conveniently inserted into the liner 20.

In some embodiments, as shown in fig. 6, the knob 10 is provided with a pattern 13. The patterns 13 are arranged on the surface of the annular surface of the knob 10, and the patterns 13 are used for increasing the contact area of fingers and the annular surface of the knob 10, improving friction force and facilitating the rotation of the knob 10 by an operator.

In some embodiments, a pointer 14 is provided on the knob 10. The pointer is convenient for an operator to observe the rotation amount of the knob 10, so that functions of adjusting light, volume and the like can be conveniently achieved to achieve a satisfactory effect. The pointer 14 is located on a side of the knob 10 remote from the liner 20.

In some embodiments, the pointer 14 is fixed to the side of the knob 10 away from the liner 20 by welding, but is not limited thereto, and it is understood that in other embodiments, the pointer 14 may also be a groove structure engraved on the side of the knob 10 away from the liner 20, and may also serve as an indication effect.

In the rotary switch 100 of this embodiment, the limit structure 24 is disposed on the inner wall of the through hole 25, the fitting portion 311 is disposed on one side of the connecting rod 31 away from the rotary potentiometer 30, the fitting portion 311 is connected with the limit structure 24 in an interference fit manner, and interference at the fitting portion 311 is greater than that at the other side of the connecting rod 31, so that the fixing reliability between the liner 20 and the connecting rod 31 is enhanced, the tensile detachment strength of the liner 20 is increased, the fixing reliability between the rotary knob 10 and the rotary potentiometer 30 is enhanced, and the rotary knob 10 is not easily detached during the rotation process.

EXAMPLE III

The present application also provides an electronic device including the above-mentioned rotary switch 100. The electronic equipment can be a sound box, a computer host with a knob, a washing machine, a refrigerator and the like.

The electronic equipment is because the setting of knob switch 100, when using, through the rotation knob 10, knob 10 drives connecting rod 31 is rotatory, thereby makes rotatory potentiometre 30 switches different operating condition, in order to reach the effect of adjusting functions such as electronic equipment light, volume. When the rotary switch 100 needs to be disassembled for maintenance, the connection mode of the rotary switch 100 facilitates the disassembly of each component, thereby reducing the rejection rate of the components during disassembly and improving the reliability of the rotary switch 100 in working on the electronic equipment.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A knob switch is characterized by comprising a knob, a lining and a rotary potentiometer; the rotary potentiometer is provided with a connecting rod, and the inner bushing is arranged on the connecting rod and is connected with the connecting rod in an interference fit manner; the knob is provided with a knob groove, and the lining is arranged in the knob groove and is connected with the knob groove in an interference fit manner.

2. The rotary switch recited in claim 1, wherein the inner liner is provided with an interference structure, the interference structure protrudes from an outer surface of the inner liner and is disposed at an angle.

3. The rotary switch recited in claim 2, wherein the inner liner is provided with a plurality of the interference structures, the plurality of the interference structures being circumferentially disposed about an outer side of the inner liner.

4. The rotary switch of claim 1, wherein the lining has a positioning element, the rotary knob has a positioning slot, the positioning slot is connected to the rotary knob slot, and the positioning element is used for positioning the lining when the lining is connected to the rotary knob slot and preventing the rotary knob from shifting during rotation.

5. The rotary switch recited in claim 4, wherein the lining has two positioning members symmetrically disposed thereon, and the rotary switch has two positioning slots symmetrically disposed thereon.

6. The rotary switch according to claim 1, wherein a limiting structure is provided in the through hole of the inner lining, the connecting rod is provided with a matching portion, and the matching portion and the limiting structure are in interference fit to increase the reliability of the fixation of the inner lining and improve the anti-pulling strength.

7. The rotary switch recited in claim 1, wherein an end of the inner liner adjacent to an inner wall of the knob slot is provided with an elastic member.

8. The rotary switch according to claim 1, wherein the surface of the rotary knob is provided with a pattern for increasing a contact area between a finger and the rotary knob and increasing a friction force.

9. The rotary switch recited in claim 1, wherein said knob surface is provided with a pointer for viewing the amount of rotation of said knob.

10. An electronic device characterized by comprising the rotary switch according to any one of claims 1 to 9.

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