CN213124243U

CN213124243U - Encoder for encoding a video signal

Info

Publication number: CN213124243U
Application number: CN202022018688.XU
Authority: CN
Inventors: 余正明; 彭建兵
Original assignee: Huizhou Zhengpai Kedian Co ltd
Current assignee: Huizhou Zhengpai Kedian Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-04
Anticipated expiration: 2030-09-15

Abstract

The application discloses an encoder, which comprises a rotor and a positioning piece, wherein the rotor comprises a rotor body and limiting structures, and the limiting structures are distributed in the circumferential direction of the rotor body; the positioning piece is in limit fit with the limit structure. The utility model provides an encoder has limit structure through the circumference distribution at rotor body, and make the limit structure cooperation of setting element and rotor spacing, make the width of the front side of rotor possible less, and then can reduce rotor diameter size, and simultaneously, because the setting element is with the limit structure spacing cooperation that is located rotor circumference, namely, the setting element is the lateral part contact with the rotor, do not have the condition that rotor and setting element superpose the setting on the thickness direction of encoder, consequently, can also reduce the whole thickness of encoder.

Description

Encoder for encoding a video signal

Technical Field

The application relates to the technical field of coding, in particular to a coder.

Background

The encoder is a key part for controlling the functions of converting signals, adjusting volume, switching menus and the like of digital communication equipment, but the conventional digital communication equipment can be very small and exquisite, and the conventional encoder does not realize miniaturization/thinning, so that the conventional encoder is difficult to be applied to the small digital communication equipment.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems of the prior art described above, a main object of the present invention is to provide an encoder that can be made thin and small.

In order to achieve the above purpose, the following technical solutions are specifically adopted in the present application:

the present application provides an encoder, comprising:

the rotor comprises a rotor body and limiting structures, and the limiting structures are distributed in the circumferential direction of the rotor body;

and the positioning piece is in spacing fit with the limiting structure.

Preferably, the limiting structure comprises a protruding part and a concave part, and the protruding part and the concave part are distributed in the circumferential direction of the rotor body in a staggered manner.

Preferably, the positioning element includes a first positioning portion and a second positioning portion, the first positioning portion and the second positioning portion are disposed opposite to each other, and the first positioning portion and the second positioning portion are respectively in close contact with the limiting structures on two sides of the rotor.

Preferably, the positioning member further includes a fixing portion, and the first positioning portion and the second positioning portion are connected to the fixing portion respectively.

Preferably, the positioning member further includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively connected to two ends of the fixing portion and respectively extend along a first direction, the first positioning portion is connected to the first connecting portion and extends along a second direction, and the second positioning portion is connected to the second connecting portion and extends along the second direction.

Preferably, the encoder further comprises a base and a housing, the base is provided with an installation part, the housing is connected with the base to form an installation cavity, the rotor and the positioning piece are respectively installed in the installation cavity, and the rotor penetrates out of the housing.

Preferably, the base includes a base body and a positioning column, the positioning column is connected to the base body and extends along a direction opposite to the first direction, the fixing portion is provided with a first positioning hole, the first positioning hole and the positioning column are correspondingly disposed, and the fixing portion is connected to the base body through the first positioning hole and the positioning column.

Preferably, the base body is provided with a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are respectively located on two sides of the base body and respectively run through the installation part, the first connecting part is located in the first limiting groove, and the second connecting part is located in the second limiting groove.

Preferably, the encoder further includes a switching sheet and a code wheel terminal, the switching sheet is sleeved at one end of the rotor close to the base, and the code wheel terminal is arranged in the mounting portion and located at one side of the switching sheet far away from the rotor.

Preferably, the housing is fixed to the base in a snap fit manner.

Compared with the prior art, the encoder of this application has limit structure through the circumference distribution at rotor body, and make the locating element spacing with the limit structure cooperation of rotor, make the width of the front side of rotor possible less, and then can reduce rotor diameter size, and simultaneously, because the locating element is with the limit structure spacing cooperation that is located rotor circumference, promptly, the locating element is the lateral part contact with the rotor, do not have the condition that rotor and locating element superpose the setting on the thickness direction of encoder, consequently, can also reduce the whole thickness of encoder.

Drawings

Fig. 1 is an exploded perspective view of an encoder according to an embodiment of the present disclosure.

Fig. 2 is a perspective view of the rotor of fig. 1.

Fig. 3 is a perspective view of the positioning member shown in fig. 1.

Fig. 4 is a combination view of the rotor and the positioning member shown in fig. 1.

Fig. 5 is a perspective view of the base of fig. 1.

Fig. 6 is a combination view of the base, the rotor and the positioning member shown in fig. 1.

Fig. 7 is a perspective view of the housing of fig. 1.

Fig. 8 is a perspective assembly view of an encoder according to an embodiment of the present application.

1. A base; 11. a base body; 110. an installation part; 111. a first limit groove; 112. a second limit groove; 12. a positioning column; 13. clamping the protrusion; 2. a housing; 21. a housing body; 210. mounting holes; 211. a second positioning hole; 22. a first engaging portion; 23. a second engaging portion; 24. a card slot; 3. a rotor; 31. a rotor body; 32. a limiting structure; 321. a boss portion; 322. a recess; 4. A positioning member; 41. a first positioning portion; 42. a second positioning portion; 43. a fixed part; 431. a first positioning hole; 44. a first connection portion; 45. a second connecting portion; 5. a switching sheet; 6. code wheel terminal.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Referring to fig. 1, fig. 1 is an exploded perspective view of an encoder according to an embodiment of the present disclosure. The embodiment of the application discloses an encoder, which comprises a base 1, a shell 2, a rotor 3, a positioning piece 4, a switching piece 5 and a code wheel terminal 6. The base 1 is provided with an installation part 110, the housing 2 is connected with the base 1 to form an installation cavity (not shown in the figure), and the rotor 3 is installed in the installation cavity and partially penetrates out of the housing 2. The positioning piece 4 is arranged in the mounting cavity and is used for contacting with the rotor 3 so as to position the rotor 3 and enable the rotor 3 to rotate with rhythm. The switching piece 5 and the code wheel terminal 6 are respectively arranged in the mounting cavity and positioned on one side of the rotor 3 far away from the shell 2. In operation, switch plate 5 rotates with rotor 3 to cause the brushes of switch plate 5 to contact or disconnect code wheel terminals 6 to generate signals.

Referring to fig. 2, fig. 2 is a perspective view of the rotor of fig. 1. Rotor 3 includes rotor body 31 and limit structure 32, and limit structure 32 distributes in rotor body 31's circumference, and the spacing cooperation of limit structure 32 of setting element 4 and rotor 3 makes rotor 3 produce rhythm in the pivoted in-process.

In the prior art, the positioning element is in contact with the front side of the rotor, namely, the positioning element and the rotor are arranged in a superposition manner in the thickness direction of the encoder, so that the whole thickness of the encoder in the prior art is larger; the diameter of the rotor in the prior art needs to be made larger because the part of the rotor contacting the positioning member needs to reach a sufficient width. The utility model provides an encoder has limit structure 32 through the circumference distribution at rotor 3, and make the spacing cooperation of limit structure 32 of setting element 4 and rotor 3, make the width of the front side of rotor possible less, and then can reduce the diameter size of rotor, and simultaneously, because the setting element is with the spacing cooperation of limit structure who is located rotor circumference, promptly, the setting element is the lateral part contact with the rotor, do not have the condition that rotor and setting element superpose the setting on the thickness direction of encoder, consequently, the whole thickness of encoder has also been reduced in this application.

Further, the limiting structure 32 includes a protrusion 321 and a recess 322, and the protrusion 321 and the recess 322 are distributed in the circumferential direction of the rotor body 31 in a staggered manner.

Referring to fig. 3, fig. 3 is a perspective view of the positioning member shown in fig. 1. The positioning member 4 includes a first positioning portion 41, a second positioning portion 42, a fixing portion 43, a first connecting portion 44, and a second connecting portion 45. In the present embodiment, the fixing portion 43 is a long plate-shaped structure, and has at least two first positioning holes 431. The first connection portion 44 and the second connection portion 45 are connected to both ends of the fixing portion 43, respectively, and each extend in the first direction (X direction in fig. 3). The first positioning portions 41 are connected to the first connecting portions 44 and extend in the second direction (Z direction in fig. 3), and the second positioning portions 42 are connected to the second connecting portions 45 and extend in the second direction. The positioning piece 4 is approximately U-shaped as a whole.

In the present embodiment, the first positioning portion 41 is in a ">" shape, the second positioning portion 42 is in a "<" shape, the first positioning portion 41 and the second positioning portion 42 are respectively in limit fit with the concave portion 322 of the rotor 3, and the assembled schematic diagram is shown in fig. 4. It is understood that, in other embodiments, the positioning element 4 may have an inverted "U" shape as a whole, and the first positioning portion 41 may also have an "(" shape, the second positioning portion 42 may also have an ")" shape, and the first positioning portion 41 and the second positioning portion 42 are respectively in limit fit with the protruding portion 321 of the rotor 3.

Referring to fig. 5, fig. 5 is a perspective view of the base in fig. 1. The base 1 includes a base body 11, a positioning column 12 and a fastening protrusion 13, in this embodiment, the base body 11 is rectangular, and is provided with an opening-shaped mounting portion 110, a first limiting groove 111 and a second limiting groove 112. The first and second limiting

grooves

111 and 112 are respectively located at two sides of the mounting portion 110 and respectively penetrate through the mounting portion 110. The positioning post 12 is connected to the base body 11 and extends along a direction opposite to the first direction, and the positioning post 12 is disposed corresponding to the first positioning hole 431. The engaging protrusions 13 are disposed on both sides of the base body 11.

Referring to fig. 6, fig. 6 is a combined view of the base, the rotor and the positioning element in fig. 1. When the rotor 3, the positioning element 4 and the base 1 are combined, the rotor 3 is located in the installation portion 110, and the positioning column 12 penetrates through the first positioning hole 431 of the fixing portion 43, so that the positioning element 4 is connected with the base body 11 in a positioning manner. The first connecting portion 44 is located in the first limiting groove 111, the second connecting portion 45 is located in the second limiting groove 112, and the first positioning portion 41 and the second positioning portion 42 are respectively located at two sides of the rotor 3 and are in limiting fit with two sides of the rotor 3.

Referring to fig. 7, fig. 7 is a perspective view of the housing of fig. 1. The housing 2 includes a housing body 21, a first engaging portion 22 and a second engaging portion 23, the housing body 21 is opened with a mounting hole 210 and a second positioning hole 211, the mounting hole 210 is used for accommodating a part of the structure of the rotor 3, and the second positioning hole 211 corresponds to the positioning post 12. The first clamping portion 22 and the second clamping portion 23 are connected to two sides of the housing body 21 respectively, the first clamping portion 22 and the second clamping portion 23 both extend along a first direction, clamping grooves 24 are formed in the first clamping portion 22 and the second clamping portion 23 respectively, and the clamping grooves 24 correspond to the clamping protrusions 13.

During specific assembly, code wheel terminal 6 is installed in installation part 110 of the base, switching piece 5 is sleeved on rotor 3, and switching piece 5 and rotor 3 are installed in installation part 110, so that switching piece 5 is located between rotor 3 and code wheel terminal 6. The positioning element 4 is connected to the base body 11, the positioning column 12 is inserted into the first positioning hole 431, the first connecting portion 44 and the second connecting portion 45 are respectively located in the first limiting groove 111 and the second limiting groove 112, and the first positioning portion 41 and the second positioning portion 42 are respectively matched with the limiting structures on two sides of the rotor 3 for limiting. The housing 2 is connected to the base 1, further, the housing body 21 is opposite to the mounting portion 110, part of the structure of the rotor 3 is located in the mounting hole 210, the positioning column 12 penetrates through the second positioning hole 211, the first engaging portion 22 and the second engaging portion 23 are respectively located on two sides of the base body 11, the engaging protrusion 13 is engaged and fixed with the engaging groove 24, and finally the housing 2 and the base 1 form a mounting cavity containing the rotor 3, the positioning member 4, the switching piece 5 and the code wheel terminal 6.

This application is through making shell 2 and base 1 constitute approximate sealed installation cavity to make rotor 3, setting element 4, switch 5 and code wheel terminal 6 be located this installation cavity, in order to prevent that dust from polluting rotor 3, setting element 4, switch 5 and code wheel terminal 6 and influencing the normal work of encoder.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An encoder, comprising:

and the positioning piece is in spacing fit with the limiting structure.

2. The encoder of claim 1, wherein the limiting structure comprises protrusions and recesses, and the protrusions and recesses are distributed in a staggered manner in the circumferential direction of the rotor body.

3. The encoder according to claim 1, wherein the positioning member includes a first positioning portion and a second positioning portion, the first positioning portion and the second positioning portion are disposed opposite to each other, and the first positioning portion and the second positioning portion are respectively in close contact with the two-side limiting structures of the rotor.

4. The encoder according to claim 3, wherein the positioning member further comprises a fixing portion, and the first positioning portion and the second positioning portion are respectively connected to the fixing portion.

5. The encoder according to claim 4, wherein the positioning member further comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively connected to two ends of the fixing portion and respectively extend in a first direction, the first positioning portion is connected to the first connecting portion and extends in a second direction, and the second positioning portion is connected to the second connecting portion and extends in the second direction.

6. The encoder according to claim 5, further comprising a base and a housing, wherein the base is provided with a mounting portion, the housing is connected with the base to form a mounting cavity, the rotor and the positioning member are respectively mounted in the mounting cavity, and the rotor penetrates out of the housing.

7. The encoder as claimed in claim 6, wherein the base includes a base body and a positioning post, the positioning post is connected to the base body and extends along a direction opposite to the first direction, the fixing portion has a first positioning hole, the first positioning hole is disposed corresponding to the positioning post, and the fixing portion is connected to the base body through the first positioning hole and the positioning post.

8. The encoder according to claim 7, wherein the base body defines a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are respectively located at two sides of the base body and respectively penetrate the mounting portion, the first connecting portion is located in the first limiting groove, and the second connecting portion is located in the second limiting groove.

9. The encoder of claim 6, further comprising a switch plate and a code wheel terminal, wherein the switch plate is sleeved on one end of the rotor close to the base, and the code wheel terminal is arranged in the mounting portion and located on one side of the switch plate away from the rotor.

10. The encoder as claimed in any one of claims 6 to 9, wherein the housing is fixed to the base by a snap fit.