disc encoder
By integrally stamping the encoder terminal and switch terminal and extending the pins to the periphery, the problem of encoder floating during welding is solved, resulting in a stable overall structure suitable for small electronic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU BOYEXIN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-12
AI Technical Summary
In existing encoders, the switch terminals are prone to floating during the soldering process, leading to functional failure.
The encoding terminal and the switch terminal are stamped together to form a conductive terminal, and the pins are led out to the periphery. A plastic coating process is used to form an integral structure to enhance stability.
The problem of floating during welding has been solved, the switching function remains normal, the overall structure is more stable, and it is suitable for smaller electronic devices.
Smart Images
Figure CN224353847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of encoder technology, and in particular to a disc encoder. Background Technology
[0002] An encoder is a mechanical rotating electrical signal generator that can directly convert the angular displacement of rotation into a digital signal.
[0003] In related technologies, encoders typically have built-in encoding terminals and switching terminals, which are fixed separately using different methods. For example... Figure 1 As shown, the switch terminals are generally fixed using a pin method. During the encoder soldering process, the pin 1000 corresponding to the switch terminal is located in the middle of the encoder and may float up, which will cause the switch function to fail. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a disc encoder that can integrally stamp the encoding terminal and the switch terminal, making the overall structure more stable and preventing the switch terminal from floating up during welding.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] The first aspect of this application provides a disc encoder, comprising: a housing; a conductive component including a first terminal and a second terminal, the first terminal and the second terminal being integrally formed to form a conductive terminal, the conductive terminal having pins disposed around its periphery; and a base, the conductive terminal being disposed on the base, the base being disposed on the housing.
[0007] The outer shell includes a turntable and a limiting protrusion. The base is disposed on the turntable, and the limiting protrusion is disposed on the inner wall of the turntable. The turntable has a circular cross-sectional structure.
[0008] The base has an annular groove, and the limiting protrusion is embedded in the annular groove so that the turntable moves in a circle around the center of the base.
[0009] The conductive assembly also includes a button and a dome switch. The turntable has a clearance hole, and the button is disposed in the clearance hole. The base also has a groove, and the dome switch is disposed in the groove. The button has an arc-shaped contact surface. The button is pressed to drive the spherical contact surface to contact the dome switch, thereby making the dome switch electrically connected to the second terminal.
[0010] The housing also includes a mounting base and a positioning post. The mounting base is disposed inside the turntable, and the positioning post is disposed on the mounting base.
[0011] The conductive component includes a brush, which is disposed on the mounting base. The positioning post passes through the brush, and the brush is electrically connected to the first terminal.
[0012] The housing further includes a first abutment block, a second abutment block, and a third abutment block, which are respectively disposed on the mounting base.
[0013] It also includes an elastic component, which includes a first elastic arm, a second elastic arm and an arc-shaped elastic arm. The first end of the arc-shaped elastic arm is connected to the first elastic arm, and the second end of the arc-shaped elastic arm is connected to the second elastic arm. The first elastic arm is disposed on the first abutment block, the second elastic arm is disposed on the second abutment block, and the arc-shaped elastic arm passes through the third abutment block.
[0014] The base is also provided with several gear slots.
[0015] The cross-sectional structure of the arc-shaped elastic arm is the same as the cross-sectional structure of the gear groove.
[0016] Compared with the prior art, the present invention has at least the following advantages:
[0017] This application forms a single conductive terminal by stamping the first and second terminals in one step. This eliminates the traditional design where the pin corresponding to the second terminal is located in the middle of the encoder. Instead, the pin is led out to the periphery of the conductive terminal, which solves the problem of the encoder floating during welding and thus maintains the normal switching function. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.
[0019] Figure 1 This is a schematic diagram of the structure of a conventional circular encoder;
[0020] Figure 2 This is a schematic diagram of the structure of a disc encoder according to one embodiment of the present invention;
[0021] Figure 3 This is an exploded view of a disc encoder according to one embodiment of the present invention;
[0022] Figure 4 This is a schematic diagram of another embodiment of the circular encoder in one embodiment of the present invention;
[0023] Figure 5 This is a schematic diagram of another embodiment of the circular encoder in one embodiment of the present invention;
[0024] Figure 6 This is a schematic diagram of another embodiment of the circular encoder in one embodiment of the present invention. Detailed Implementation
[0025] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.
[0026] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0027] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0028] Currently, encoders typically have built-in encoder terminals and switch terminals, which are fixed separately using different methods. Switch terminals are generally fixed using pins. During encoder soldering, this method can cause the switch terminal pins to float upwards because they are located in the center of the encoder, leading to switching malfunction.
[0029] To address the aforementioned issues, this application provides a disc encoder that integrates the encoding terminals and the switching terminals into a single stamping process, resulting in a more robust overall structure and preventing the switching terminals from floating during welding.
[0030] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0031] See Figure 2 and Figure 3A circular encoder includes: a housing 100, a conductive component 200, and a base 300. The conductive component 200 includes a first terminal 210 and a second terminal 220. The first terminal 210 and the second terminal 220 are integrally formed to form a conductive terminal 400. The peripheral edge of the conductive terminal 400 is provided with pins 410. The conductive terminal 400 is disposed on the base 300, and the base 300 is disposed on the housing 100.
[0032] It should be noted that the first terminal 210 is an encoding terminal, and the second terminal 220 is a switching terminal. The first terminal 210 and the second terminal 220 are integrally formed into a single conductive terminal 400 by stamping, resulting in stronger structural stability. Furthermore, the pins 410 of the conductive terminal 400 are located at the periphery, employing a uniform assembly process. This design abandons the traditional approach where the pin 1000 corresponding to the second terminal 220 is located in the center of the encoder, instead extending the pins to the periphery of the conductive terminal 400. This solves the problem of encoder floating during soldering, thus maintaining normal switching function. The number of pins 410 includes, but is not limited to, five. Further, the conductive terminal 400 and the base 300 are formed into a single unit through plastic coating. Plastic coating is a process where plastic is made into sheets, rolls, or other shapes, then wound onto metal or other materials, and finally thermo-pressed to form the product. The plastic coating process gives the base and conductive terminal as a whole excellent heat resistance and mechanical impact resistance.
[0033] It should also be noted that the overall size of this application is smaller than that of traditional encoders, occupying less space, and thus can be applied to smaller electronic devices, such as mice and Bluetooth headsets.
[0034] See Figure 3 In one embodiment, the outer casing 100 includes a turntable 110 and a limiting protrusion 120, a base 300 is disposed on the turntable 110, the limiting protrusion 120 is disposed on the inner wall of the turntable 110, and the turntable 110 has a circular cross-sectional structure.
[0035] It should be noted that the base 300 has an annular groove 310, and the annular groove 310 is fitted with a limiting protrusion 120 so that the turntable 110 can move in a circle around the center of the base 300. The turntable 110 is assembled with the base 300 through the limiting protrusion 120. Furthermore, there is a gap between the annular groove 310 and the limiting protrusion 120 so that the turntable 110 can rotate.
[0036] See Figure 3 and Figure 4In one embodiment, the conductive component 200 further includes a button 230 and a dome switch 240. A clearance hole 111 is provided on the turntable 110, and the button 230 is disposed in the clearance hole 111. A groove 320 is also provided on the base 300, and the dome switch 240 is disposed in the groove 320. An arc-shaped contact surface 231 is provided on the button 230. By pressing the button 230, the spherical contact surface 231 is driven to contact the dome switch 240, thereby making the dome switch 240 electrically connected to the second terminal 220.
[0037] It should be noted that the dome switch 220 is a metal spring with a lid shape, and its convex surface faces the arc-shaped contact surface 231. By pressing the button 230, the arc-shaped contact surface 231 contacts the convex surface of the dome switch 240, so that the dome switch 240 deforms and generates elastic force, thereby making the dome switch 240 contact the second terminal 220 to realize the switching function.
[0038] See Figure 4 In one embodiment, the housing 100 further includes a mounting base 130 and a positioning post 140. The mounting base 130 is disposed within the turntable 110, and the positioning post 140 is disposed on the mounting base 130. Specifically, the conductive assembly 200 includes a brush 250, which is disposed on the mounting base 130. The positioning post 140 passes through the brush 250, and the brush 250 is electrically connected to the first terminal 210.
[0039] It should be noted that the brush 250 is a dual-body brush with stable contact and long life, which is fixed on the mounting base 130 by the positioning post 140.
[0040] See Figure 3 and Figure 4 In one embodiment, the housing 100 further includes a first abutment block 150, a second abutment block 160, and a third abutment block 170, which are respectively disposed on the mounting base 130. Specifically, the disc encoder further includes an elastic component 500, which includes a first elastic arm 510, a second elastic arm 520, and an arc-shaped elastic arm 530. The first end of the arc-shaped elastic arm 530 is connected to the first elastic arm 510, and the second end of the arc-shaped elastic arm 530 is connected to the second elastic arm 520. The first elastic arm 510 is disposed on the first abutment block 150, the second elastic arm 520 is disposed on the second abutment block 160, and the arc-shaped elastic arm 530 passes through the third abutment block 170.
[0041] It should be noted that the first elastic arm 510 and the second elastic arm 520 are symmetrical in position and have the same length. The first elastic arm 510 and the second elastic arm 520 are connected together by an arc-shaped elastic arm 530. The first elastic arm 510 is limited by the first abutment block 150, the second elastic arm 520 is limited by the second abutment block 160, and the arc-shaped elastic arm 530 is limited by the third abutment block 170.
[0042] See Figure 3 In one embodiment, the base 300 is further provided with a plurality of gear grooves 330. Specifically, the cross-sectional structure of the arc-shaped elastic arm 530 is the same as the cross-sectional structure of the gear grooves 330.
[0043] It should be noted that the arc-shaped elastic arm 530 abuts against the groove wall of the gear groove 330, and when the turntable 110 rotates, it can produce a tactile sensation during rotation.
[0044] See Figure 2 Furthermore, in another embodiment, pin 410 is a plug-in pin.
[0045] It should be noted that pin 410 of the conductive terminal 400 can be a plug-in pin, meaning it can be fixed to the PCB board in the form of a plug-in. This makes installation and removal more flexible and maintenance more convenient.
[0046] See Figure 5 Furthermore, in another embodiment, the pin 400 is a surface mount pin.
[0047] It should be noted that using surface mount pins for soldering can reduce the overall thickness of the encoder and simplify the circuit layout, thereby improving space utilization.
[0048] See Figure 6 Furthermore, in another embodiment, the pin 400 is a recessed soldering pin.
[0049] It should be noted that pin 410 is a recessed soldering pin. During soldering, the encoder body can be partially embedded in the groove or countersunk hole reserved on the circuit board, and pin 410 is soldered to the surface of the circuit board or the inner wall of the countersunk hole. The recessed soldering pin transforms the original height of "encoder stacked on the surface of the circuit board" into "encoder partially embedded in the board" by "recessing the encoder body into the circuit board", thus compressing the overall height. This is suitable for ultra-thin devices, such as laptop touchpad encoders, smart door lock panel knobs, and drone gimbal control modules.
[0050] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.
[0051] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A circular encoder, characterized in that, include: shell; A conductive component includes a first terminal and a second terminal, wherein the first terminal and the second terminal are integrally formed to form a conductive terminal, and the peripheral edge of the conductive terminal is provided with pins; The base, the conductive terminal is disposed on the base, and the base is disposed on the outer shell.
2. The circular encoder according to claim 1, characterized in that, The outer shell includes a turntable and a limiting protrusion. The base is disposed on the turntable, and the limiting protrusion is disposed on the inner wall of the turntable. The turntable has a circular cross-sectional structure.
3. The circular encoder according to claim 2, characterized in that, The base has an annular groove, and the limiting protrusion is embedded in the annular groove so that the turntable moves in a circle around the center of the base.
4. The circular encoder according to claim 2, characterized in that, The conductive assembly also includes a button and a dome switch. The turntable has a clearance hole, and the button is disposed in the clearance hole. The base also has a groove, and the dome switch is disposed in the groove. The button has an arc-shaped contact surface. The button is pressed to drive the arc-shaped contact surface to contact the dome switch, thereby making the dome switch electrically connected to the second terminal.
5. The circular encoder according to claim 2, characterized in that, The housing also includes a mounting base and a positioning post. The mounting base is disposed inside the turntable, and the positioning post is disposed on the mounting base.
6. The circular encoder according to claim 5, characterized in that, The conductive component includes a brush, which is disposed on the mounting base. The positioning post passes through the brush, and the brush is electrically connected to the first terminal.
7. The circular encoder according to claim 5, characterized in that, The housing further includes a first abutment block, a second abutment block, and a third abutment block, which are respectively disposed on the mounting base.
8. The circular encoder according to claim 7, characterized in that, It also includes an elastic component, which includes a first elastic arm, a second elastic arm and an arc-shaped elastic arm. The first end of the arc-shaped elastic arm is connected to the first elastic arm, and the second end of the arc-shaped elastic arm is connected to the second elastic arm. The first elastic arm is disposed on the first abutment block, the second elastic arm is disposed on the second abutment block, and the arc-shaped elastic arm passes through the third abutment block.
9. The circular encoder according to claim 8, characterized in that, The base is also provided with several gear slots.
10. The circular encoder according to claim 9, characterized in that, The cross-sectional structure of the arc-shaped elastic arm is the same as that of the gear groove.