CN222800036U

CN222800036U - A rotary encoder

Info

Publication number: CN222800036U
Application number: CN202421773267.XU
Authority: CN
Inventors: 范阳军; 曾文军
Original assignee: Dongguan Linjiwei Technology Co ltd
Current assignee: Dongguan Linjiwei Technology Co ltd
Priority date: 2024-07-25
Filing date: 2024-07-25
Publication date: 2025-04-25
Anticipated expiration: 2034-07-25

Abstract

The utility model relates to the technical field of encoders, and particularly discloses a rotary encoder which comprises a rotor, a code disc base, a positioning elastic sheet, a sounding elastic sheet and a sounding elastic sheet, wherein a plurality of clamping grooves are formed in the circumferential surface of the rotor, the code disc base is provided with a rotating groove for accommodating the rotor, an interference mounting groove and a gap mounting groove are formed in the side surface of the rotating groove, the positioning elastic sheet is installed in the interference mounting groove in an interference fit manner and is elastically abutted to the circumferential surface of the rotor, and the sounding elastic sheet is installed in the gap mounting groove in a clearance fit manner and is elastically abutted to the circumferential surface of the rotor. The rotary encoder provided by the utility model not only can effectively solve the problem that the existing rotary encoder cannot achieve the advantages of large sound and small virtual position, but also is beneficial to manufacturing a large-size encoder due to the hollow structural design.

Description

Rotary encoder

Technical Field

The utility model relates to the technical field of encoders, in particular to a rotary encoder.

Background

Rotary encoders typically include a code wheel base and a rotor rotatably mounted to the code wheel base. In order to improve the texture of a user when screwing the rotor, a plurality of clamping grooves are formed in the circumferential direction of the rotor, and a spring sheet which is abutted to the clamping grooves is arranged on the code disc base.

When the rotor rotates, the elastic sheets are sequentially clamped into different clamping grooves along with the sliding of the rotor, firstly, clamping hand feeling is provided for a user, secondly, clicking sounds can be generated, and rotation prompts are provided from touch sense and hearing sense respectively.

It should be noted that when the spring plate is firmly installed and fixed (the spring plate cannot shake relative to the tray base), the spring plate can stably support the clamping groove so as to avoid the situation of the rotor rotating with a virtual position;

On the contrary, when the elastic sheet is fixed and fixed relatively loosely (the elastic sheet can slightly shake relatively to the tray base to a certain extent), the elastic sheet can shake relatively to the tray base, so that the sound generated when the elastic sheet impacts the rotor is larger, however, the elastic sheet can shake itself, so that a certain rotation virtual position exists on the rotor abutted with the elastic sheet.

Therefore, an improvement is needed to the existing encoder to solve the problem that it cannot combine the advantages of large ringing and small virtual bits.

The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is presently known to those of ordinary skill in the art.

Disclosure of utility model

An object of the present utility model is to provide a rotary encoder, which can effectively solve the problem that the existing rotary encoder cannot achieve the advantages of large sound and small virtual position.

To achieve the above object, the present utility model provides a rotary encoder comprising:

The circumference surface of the rotor is provided with a plurality of clamping grooves;

the code disc base is provided with a rotary groove for accommodating the rotor, and the side surface of the rotary groove is provided with an interference mounting groove and a clearance mounting groove;

The positioning elastic piece is installed in the interference installation groove in an interference fit manner and elastically abuts against the circumferential surface of the rotor;

and the sounding elastic sheet is installed in the gap installation groove in a clearance fit manner and elastically abuts against the circumferential surface of the rotor.

Optionally, the shape and the size of the positioning spring piece and the sounding spring piece are the same.

Optionally, the size of the interference mounting groove is smaller than the size of the gap mounting groove.

Optionally, the positioning spring piece and the sounding spring piece each comprise two straight parts and an arc part connecting the two straight parts;

the arc-shaped part protrudes towards the rotor and is abutted with the circumferential surface of the rotor.

Optionally, the interference mounting groove and the gap mounting groove are both provided with a spring piece notch communicated to the rotating groove.

Optionally, the positioning spring piece and the sounding spring piece are symmetrically arranged with respect to the rotor.

Optionally, a disc is arranged at the bottom of the rotary groove, and a plurality of brushes elastically abutting against the disc are arranged at the bottom of the rotor.

Optionally, a pin penetrating downwards through the code disc base is connected to the bottom of the disc.

Optionally, both the rotor and the code wheel base are hollow annular structures.

Optionally, the method further comprises:

The annular cover plate comprises a cover plate body positioned above the rotor and riveting pins connected to the edge position of the cover plate body and riveted with the tray base.

The rotary encoder has the beneficial effects that when the rotary encoder rotates, on one hand, the positioning elastic sheet is arranged in the interference mounting groove in an interference fit manner and cannot shake relative to the code disc base, so that the clamping groove on the rotor can be elastically clamped to avoid the rotor from rotating to a virtual position, and on the other hand, the sounding elastic sheet is arranged in the clearance mounting groove in a clearance fit manner and can shake relative to the code disc base to a certain extent, so that larger clicking sound can be emitted.

Therefore, the rotary encoder provided by the utility model can effectively solve the problem that the existing rotary encoder cannot achieve the advantages of large sound and small virtual position.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a rotary encoder according to an embodiment;

FIG. 2 is an exploded schematic view of a rotary encoder according to an embodiment;

FIG. 3 is a schematic top view of a code wheel base according to an embodiment;

fig. 4 is a schematic bottom view of a rotor provided in an embodiment.

In the figure:

1. the device comprises a rotor, 101, a clamping groove, 102, a brush, 1021 and a bud;

2. Code disc base, 201, rotary groove, 202, interference mounting groove, 203, gap mounting groove, 204, disc, 205, pin, 206, spring gap;

3. 301, a cover plate body 302, a rivet pin;

4a, a sounding spring piece, 4b, a positioning spring piece, 401, a straight part, 402 and an arc part.

Detailed Description

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present utility model, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present utility model pertains, and the use of related terms herein is intended only to describe specific embodiments, not to limit the present utility model.

In the description of the present utility model, the term "and/or" is a representation for describing a logical relationship between objects, meaning that three relationships may exist, for example, a and/or B, meaning that there are a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In the present utility model, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

In the present utility model, the expressions "greater than", "less than", "exceeding" and the like are understood to exclude the present number, and the expressions "above", "below", "within" and the like are understood to include the present number, as well as the expressions "examining the guideline" and the like. Furthermore, in the description of embodiments of the present utility model, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.

In the description of embodiments of the present utility model, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present utility model.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the utility model should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral connection, may be a mechanical connection, an electrical connection, or a communication connection, may be a direct connection or an indirect connection through an intermediary, or may be a communication between two elements or an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present utility model can be understood by those skilled in the art to which the present utility model pertains according to circumstances.

Referring to fig. 1 and 2, the utility model provides a rotary encoder, which comprises a rotor 1, a code wheel base 2, an annular cover plate 3, a positioning spring piece 4b and a sounding spring piece 4a.

Both the rotor 1 and the code wheel base 2 are hollow annular structures. Further, a plurality of clamping grooves 101 are formed in the circumferential surface of the rotor 1, a rotary groove 201 for accommodating the rotor 1 is formed in the code wheel base 2, and an interference mounting groove 202 and a clearance mounting groove 203 are formed in the side surface of the rotary groove 201. The annular cover plate 3 comprises a cover plate body 301 positioned above the rotor 1, and a riveting pin 302 connected to the edge position of the cover plate body 301 and riveted with the code disc base 2. After the rotor 1 is placed in the rotary groove 201, the annular cover plate 3 is covered, and the riveting legs 302 are bent, so that the rotor 1 can be limited in the rotary groove 201, and the rotor 1 is prevented from being separated from the rotary groove 201.

Referring to fig. 3, a disc 204 is disposed at the bottom of the rotary groove 201, and referring to fig. 4, a plurality of brushes 102 are disposed at the bottom of the rotor 1 for elastically abutting against the disc 204. The bottom of the disc 204 is connected with a pin 205 penetrating downwards through the code wheel base 2. When the rotor 1 is rotated, the rotor 1 drives the brush 102 to slide on the disc 204, and a changed electric signal is detected at the pin 205. It should be noted that, the cooperation of the brush 102 and the disc 204 to generate the variable electrical signal is not an important point of the present utility model, and will not be described in detail. Optionally, the brush 102 is provided with a bud 1021 protruding toward the disk 204, so as to reduce friction resistance with the disk 204 and improve smoothness of rotation.

The positioning spring piece 4b is installed in the interference installation groove 202 in an interference fit manner and elastically abuts against the circumferential surface of the rotor 1, and the sounding spring piece 4a is installed in the clearance installation groove 203 in a clearance fit manner and elastically abuts against the circumferential surface of the rotor 1.

In the rotary encoder provided in this embodiment, when the rotor 1 rotates, on one hand, the positioning spring piece 4b is installed in the interference installation groove 202 in an interference fit manner, and does not shake relative to the code disc base 2, so that the clamping groove 101 on the rotor 1 can be elastically clamped to avoid the rotor 1 from rotating in a virtual position, and on the other hand, the sounding spring piece 4a is installed in the clearance installation groove 203 in a clearance fit manner, and can shake relative to the code disc base 2 to a certain extent, so that a larger clicking sound can be emitted.

In this embodiment, the positioning spring 4b and the sounding spring 4a have the same shape and size, and the size of the interference mounting groove 202 is smaller than the size of the gap mounting groove 203.

The shape and the size of the positioning spring piece 4b and the sounding spring piece 4a are the same, so that the material types can be reduced, and the material management cost can be reduced. Optionally, the length dimension of the interference mounting groove 202 is smaller than the length dimension of the gap mounting groove 203, and/or the width dimension of the interference mounting groove 202 is smaller than the width dimension of the gap mounting groove 203.

The size of the interference mounting groove 202 is designed to be slightly smaller than that of the gap mounting groove 203, so that the positioning spring piece 4b is installed in the interference mounting groove 202 in an interference fit manner, and the sounding spring piece 4a is installed in the gap mounting groove 203 in a gap fit manner.

Optionally, the positioning spring piece 4b and the sounding spring piece 4a each include two straight portions 401 and an arc portion 402 connecting the two straight portions 401, where the arc portion 402 protrudes toward the rotor 1 and abuts against the circumferential surface of the rotor 1.

Accordingly, both the interference mounting groove 202 and the clearance mounting groove 203 are provided with a spring piece notch 206 communicating to the rotating groove 201. The arc part 402 of the positioning spring 4b protrudes to elastically abut against the rotor 1 through the spring notch 206 of the mounting groove 202, and the arc part 402 of the sounding spring 4a protrudes to elastically abut against the rotor 1 through the spring notch 206 of the gap mounting groove 203.

In this embodiment, the positioning spring 4b and the sounding spring 4a are symmetrically disposed with respect to the rotor 1, so as to ensure that the left and right sides of the rotor 1 are uniformly subjected to elastic force as much as possible.

In summary, the rotary encoder provided in the present embodiment has the following advantages:

① The positioning spring plate 4b is arranged in the interference mounting groove 202 in an interference fit manner, so that the clamping groove 101 on the rotor 1 can be elastically clamped, and the rotor 1 is prevented from rotating in a virtual position; the sounding spring plate 4a is installed in the clearance installation groove 203 in a clearance fit manner, so that certain shaking can occur relative to the code disc base 2, and further, larger clicking sound can be generated when the rotor 1 is impacted;

② The hollow structure design is beneficial to manufacturing the large-size encoder.

Finally, it should be noted that, although the embodiments have been described in the text and the drawings, the scope of the application is not limited thereby. The technical scheme generated by replacing or modifying the equivalent structure or equivalent flow by utilizing the content recorded in the text and the drawings of the specification based on the essential idea of the application, and the technical scheme of the embodiment directly or indirectly implemented in other related technical fields are included in the patent protection scope of the application.

Claims

1. A rotary encoder, comprising:

A rotor (1), wherein a circumferential surface of the rotor (1) is provided with a plurality of slots (101);

A code disc base (2), the code disc base (2) being provided with a rotation groove (201) for accommodating the rotor (1), and an interference mounting groove (202) and a clearance mounting groove (203) being provided on the side of the rotation groove (201);

A positioning spring piece (4b), the positioning spring piece (4b) being installed in the interference installation groove (202) by interference fit, and elastically abutting against the circumferential surface of the rotor (1);

A sound-generating spring piece (4a), the sound-generating spring piece (4a) is installed in the gap installation groove (203) with a clearance fit, and elastically abuts against the circumferential surface of the rotor (1).

2. The rotary encoder according to claim 1, characterized in that the positioning spring piece (4b) and the sound-generating spring piece (4a) have the same shape and size.

3. The rotary encoder according to claim 2, characterized in that a size of the interference mounting groove (202) is smaller than a size of the clearance mounting groove (203).

4. The rotary encoder according to claim 2, characterized in that the positioning spring piece (4b) and the sounding spring piece (4a) each comprise two straight portions (401) and an arc portion (402) connecting the two straight portions (401);

The arc-shaped portion (402) protrudes toward the rotor (1) and abuts against a circumferential surface of the rotor (1).

5. The rotary encoder according to claim 1, characterized in that both the interference mounting groove (202) and the clearance mounting groove (203) are provided with a spring notch (206) connected to the rotation groove (201).

6. The rotary encoder according to claim 1, characterized in that the positioning spring piece (4b) and the sound-generating spring piece (4a) are symmetrically arranged with respect to the rotor (1).

7. The rotary encoder according to claim 1, characterized in that a disc (204) is provided at the bottom of the rotating groove (201), and a plurality of brushes (102) for elastically abutting against the disc (204) are provided at the bottom of the rotor (1).

8. The rotary encoder according to claim 7, characterized in that a pin (205) is connected to the bottom of the disc (204) and passes downward through the code disc base (2).

9. The rotary encoder according to claim 1, characterized in that both the rotor (1) and the code disc base (2) are hollow annular structures.

10. The rotary encoder according to claim 9, further comprising:

An annular cover plate (3), the annular cover plate (3) comprising a cover plate body (301) located above the rotor (1), and a rivet foot (302) connected to an edge of the cover plate body (301) and riveted to the code disc base (2).