Encoder device

Abstract

The utility model provides an encoder device. The encoder equipment comprises a fixing plate, an outer encoder assembly with a hollow structure and an inner encoder assembly, the outer encoder assembly comprises a hollow outer encoder and a hollow outer upper cover, a fixing part of the outer encoder is installed on the fixing plate, the outer upper cover is fixed to a rotating shaft of the outer encoder in a buckled mode, and the inner encoder assembly is installed on the fixing plate. The inner encoder assembly comprises an inner encoder and an inner upper cover, a fixing part of the inner encoder is installed on the fixing plate, and the inner upper cover is fixed to a rotating shaft of the inner encoder in a buckled mode. The encoder equipment integrates two encoders, meets the requirement of multiple control instructions, and is high in integration level, small in size, space-saving and wide in application range.

Description

Technical Field

[0001] The utility model relates to the field of encoders, in particular to an encoder device. Background Art

[0002] An encoder is a device that encodes and converts signals or data into a signal form that can be used for communication, transmission and storage.

[0003] Existing encoder devices are all single encoder structures, such as patent CN203069195U, please refer to Figure 1 , is a partially cut-away side view of a rotary encoding system in the prior art, wherein the first rotary encoding system 100 comprises a rotary encoder 18a and a measuring object 12a, wherein the rotary encoder 18a has an encoder shaft 20a, and the measuring object 12a has a measuring shaft 14a, wherein the rotary encoder 18a is mounted on the measuring object 12a, and the measuring shaft 14a and the encoder shaft 20a are connected to each other in a torsionally fixed manner. Utility Model Content

[0004] In order to solve the technical problem that a single encoder structure cannot meet the control instruction requirements, the utility model provides an encoder device integrating two encoders.

[0005] An encoder device comprises a fixed plate, an external encoder component having a hollow structure, and an internal encoder component, wherein the external encoder component comprises a hollow external encoder and a hollow external upper cover, the fixed portion of the external encoder is mounted on the fixed plate, the external upper cover is snap-fitted and fixed to the rotating shaft of the external encoder to form the hollow structure, the internal encoder component is accommodated in the hollow structure, comprises an internal encoder and an internal upper cover, the fixed portion of the internal encoder is mounted on the fixed plate, and the internal upper cover is snap-fitted and fixed to the rotating shaft of the internal encoder.

[0006] Preferably, the inner upper cover includes a first cover body and a second cover body, the first cover body is buckled and fixed to the rotating shaft of the inner encoder, the second cover body is buckled and fixed to the first cover body, the second cover body includes a plate-like body, a limiter and a lower hook, the limiter and the lower hook are formed by extending the plate-like body toward the first cover body, the first cover body is provided with a flange toward the end of the second cover body, and the limiter and the lower hook cooperate to clamp the flange.

[0007] Preferably, the outer upper cover comprises a side wall and an annular bottom wall which are connected to each other, the center of the annular bottom wall is recessed toward the outer encoder to form a groove, and the plate-like body is accommodated in the groove.

[0008] Preferably, a gap is maintained between the plate-like body and the bottom of the groove.

[0009] Preferably, the inner encoder comprises a second engaging groove, the second engaging groove is arranged on the rotating shaft of the inner encoder, and the first cover body is provided with a second engaging hook corresponding to the second engaging groove.

[0010] Preferably, the second engaging groove is formed by the surface of the rotating shaft of the inner encoder being recessed toward the center thereof, the second hook is formed by the first cover extending toward the inner encoder, and the hook portion of the second hook is engaged in the second engaging groove.

[0011] Preferably, the external encoder comprises a limiting notch, the limiting notch is arranged on the rotating shaft of the external encoder, and the external upper cover is provided with a limiting protrusion corresponding to the limiting notch.

[0012] Preferably, the limiting notch is concave with its opening facing the outer upper cover, the limiting protrusion is formed by extending the outer upper cover toward its center direction and the direction of the outer encoder, and the limiting protrusion is inserted into the limiting notch from the opening of the limiting notch.

[0013] Preferably, the external encoder comprises a first engaging groove, the first engaging groove is arranged on the rotating shaft of the external encoder, and the external upper cover is provided with a first engaging hook corresponding to the first engaging groove.

[0014] Preferably, the first engaging groove is formed by the surface of the rotating shaft of the external encoder being recessed toward the center thereof, the first hook is formed by the outer upper cover extending toward the external encoder, and the hook portion of the first hook is engaged in the first engaging groove.

[0015] Preferably, it also includes an upper shell and a lower shell, the upper shell has a through hole, the external encoder assembly passes through the through hole, the upper shell extends toward the lower shell to form a first protrusion, and the lower shell forms a second protrusion toward the upper shell, and the first protrusion cooperates with the second protrusion to fix the fixing plate.

[0016] Compared with the prior art, the encoder device provided by the utility model is provided with a hollow outer cover which is buckled and fixed to the hollow rotating shaft of the outer encoder to form the hollow structure, the inner encoder component is accommodated in the hollow structure of the outer encoder component, the fixing part of the outer encoder and the fixing part of the inner encoder are installed on the fixing plate, the outer cover is buckled and fixed to the rotating shaft of the outer encoder, and the inner cover is buckled and fixed to the rotating shaft of the inner encoder, so as to integrate the external encoder with the internal encoder to meet the requirements of multiple control instructions, and has high integration, small size, space saving and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A partially cut-away side view of a rotary encoding system of the prior art;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of the dual encoder device provided by the utility model;

[0019] Figure 3 for Figure 2 A three-dimensional exploded schematic diagram of the dual encoder device shown;

[0020] Figure 4 for Figure 1 A cross-sectional view and a partial enlarged view of the dual encoder device shown;

[0021] Figure 5 for Figure 1 A perspective exploded schematic diagram of the outer encoder assembly shown;

[0022] Figure 6 for Figure 1 The three-dimensional exploded schematic diagram of the inner encoder assembly shown;

[0023] Figure 7 for Figure 1 A cross-sectional view of the inner encoder assembly is shown. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 2 , Figure 3 and Figure 4 , Figure 2 A schematic diagram of the three-dimensional structure of the dual encoder device provided by the utility model. Figure 3 for Figure 1 The three-dimensional exploded schematic diagram of the dual encoder device shown, Figure 4 for Figure 2The sectional view and partial enlarged view of the dual encoder device shown. The dual encoder 10 device provided by the utility model includes an upper shell 11, a lower shell 13, a fixing plate 15, an external encoder component 17 having a hollow structure 170, and an internal encoder component 19. The upper shell 11 and the lower shell 13 cooperate to fix and accommodate the fixing plate 15, the upper shell 11 has a through hole 110, the external encoder component 17 passes through the through hole 110 and is installed on the fixing plate 15, and the internal encoder component 19 is accommodated in the hollow structure 170 and installed on the fixing plate 15. In this embodiment, the fixing plate 15 and the PCB module are integrated into the same plate body, and the external encoder component 17 and the internal encoder component 19 are both electrically connected to the PCB module. The upper shell 11 extends toward the lower shell 13 to form a first protrusion 111, and the lower shell 13 forms a second protrusion 131 toward the upper shell 11, and the first protrusion 111 and the second protrusion 131 cooperate to fix the fixing plate 15.

[0026] Please refer to Figure 4 and Figure 5 , Figure 5 for Figure 1 The external encoder assembly 17 includes a hollow external encoder 171 and a hollow external upper cover 173, wherein the external encoder 171 is a rotary encoder, a fixing portion 1711 of the external encoder 171 is mounted on the fixing plate 15, and the external upper cover 173 is fastened and fixed to a rotating shaft 1713 of the external encoder 171, forming the hollow structure 170.

[0027] The outer encoder 171 includes a limiting notch 1712 and a first engaging groove 1714, the limiting notch 1712 and the first engaging groove 1714 are provided on the rotating shaft 1713 of the outer encoder 171, the limiting notch 1712 is concave, and the opening faces the outer upper cover 173. The outer upper cover 173 includes a side wall 1731 and an annular bottom wall 1733 which are connected and arranged, the outer upper cover 173 is provided with a limiting protrusion 1732 corresponding to the limiting notch 1712, the limiting protrusion 1732 is formed by the annular bottom wall 1733 extending toward the center direction thereof and the direction of the outer encoder 171, and the limiting protrusion 1732 is inserted into the limiting notch 1712 from the opening of the limiting notch 1712. The first engaging groove 1714 is formed by the surface of the rotating shaft 1713 of the external encoder 171 being recessed toward the center thereof, and the external upper cover 173 is provided with a first hook 1734 corresponding to the first engaging groove 1714. The first hook 1734 is formed by the annular bottom wall 1733 extending toward the external encoder 171, and the hook portion of the first hook 1734 is engaged with the first engaging groove 1714. When the user turns the external upper cover 173, the rotating shaft 1713 of the external encoder 171 rotates relative to the fixing portion 1711 of the external encoder 171 through the cooperation between the limiting notch 1712 and the limiting protrusion 1732, and the cooperation between the first engaging groove 1714 and the first hook 1734, thereby generating an electrical signal, which is transmitted to the PCB module.

[0028] In this embodiment, the outer encoder 171 is annular as a whole, the number of the limiting notches 1712 is two, and the number of the first engaging grooves 1714 is two relative to the rotating shaft 1713 of the outer encoder 171. The limiting notches 1712 and the first engaging grooves 1714 are alternately arranged relative to the rotating shaft 1713 of the outer encoder 171, and the spacing between adjacent limiting notches 1712 and the first engaging grooves 1714 is π / 2 radians. Correspondingly, the number of the limiting protrusions 1732 is two and they are arranged oppositely, the number of the first hooks 1734 is two and they are arranged oppositely, the limiting protrusions 1732 and the first hooks 1734 are alternately arranged, and the spacing between adjacent limiting protrusions 1732 and the first hooks 1734 is π / 2 radians.

[0029] It is understandable that the number of the limiting notches 1712 and the first engaging grooves 1714 can be set according to actual needs, and can be one, two, more than one, etc.

[0030] Please refer to Figure 4 , Figure 6 and Figure 7 , Figure 6 for Figure 1 The three-dimensional decomposition diagram of the internal encoder is shown. Figure 7 for Figure 1 The cross-sectional view of the inner encoder assembly is shown. The inner encoder assembly 19 includes an inner encoder 191 and an inner upper cover 192. The inner encoder 191 is a rotary encoder. The fixing portion 1911 of the inner encoder 191 is mounted on the fixing plate 15. The inner upper cover 192 is buckled and fixed to the rotating shaft 1913 of the inner encoder 191. In this embodiment, the inner upper cover 192 includes a first cover body 193 and a second cover body 195. The first cover body 193 is buckled and fixed to the rotating shaft 1913 of the inner encoder 191. The second cover body 195 is buckled and fixed to the first cover body 193. In some embodiments, the first cover body and the second cover body can be an integral structure.

[0031] The first cover 193 is buckled with the inner encoder 191 through a buckling portion. In this embodiment, the inner encoder 191 includes a second buckling groove 1912, which is provided on the rotating shaft 1913 of the inner encoder 191 and is formed by the surface of the rotating shaft 1913 of the inner encoder 191 being concave toward the center thereof. The buckling portion is a second hook 1932, which is formed by the first cover 193 extending toward the inner encoder 191. The hook portion of the second hook 1932 is buckled into the second buckling groove 1912, and the second buckling groove 1912 and the second hook 1932 are matched and buckled.

[0032] The first cover 193 is provided with a flange 1933 toward the end of the second cover 195. The second cover 195 includes a plate-like body 1951, a stopper 1952 and a lower hook 1954. The stopper 1952 and the lower hook 1954 are formed by the plate-like body 1951 extending toward the first cover 193. The center of the annular bottom wall 1733 is recessed toward the external encoder 171 to form a groove 1730. The plate-like body 1951 is received in the groove 1730 and maintains a gap with the bottom of the groove 1730. The stopper 1952 and the lower hook 1954 are arranged at intervals to cooperate with the flange 1933 for clamping. When the user presses the plate-like body 1951 with his fingertips to rotate, the first cover body 193 rotates accordingly through the cooperation between the limit piece 1952 and the lower hook 1954 and the flange 1933, and the rotating shaft 1913 of the internal encoder 191 rotates relative to the fixed part 1911 of the internal encoder 191 through the cooperation between the second engaging groove 1912 and the second hook 1932, thereby generating an electrical signal and transmitting it to the PCB module.

[0033] It is understandable that the internal encoder 191 and the rotating shaft 193 of the first cover body 193 can be an integral structure.

[0034] Compared with the prior art, the encoder device 10 provided by the present invention is provided with a hollow outer upper cover 173 which is snap-fitted and fixed to the rotating shaft 1713 of the hollow outer encoder 171 to form the hollow structure 170, the inner encoder assembly 19 is accommodated in the hollow structure 170, the fixing part 1711 of the outer encoder 171 and the fixing part 1911 of the inner encoder 191 are installed on the fixing plate 15, the outer upper cover 173 is snap-fitted and fixed to the rotating shaft 1713 of the outer code encoder 171, the first cover body 193 is snap-fitted and fixed to the rotating shaft 1913 of the inner encoder 191, and the second cover body 195 is snap-fitted and fixed to the first cover body 193, so as to integrate the outer encoder 171 with the inner encoder 191 to meet the requirements of multiple control instructions, and has high integration, small size, space saving and a wide range of applications.

[0035] The inner encoder assembly 19 is housed in the hollow structure 170 of the outer encoder 17. The user operates the outer encoder 171 by twisting the outer upper cover 173 and operates the inner encoder 191 by rotating the inner upper cover 192. The operation is convenient and the height of the encoder device 10 is reduced.

[0036] The second cover 195 is provided with the plate-like body 1951, the stopper 1952 and the lower hook 1954. The stopper 1952 and the lower hook 1954 are formed by the plate-like body 1951 extending toward the first cover 193. The stopper 1952 and the lower hook 1954 are arranged at intervals to cooperate with the flange 1933 of the first cover 193. When assembling the second cover 195 to the first cover 193, there is no need to identify the direction. The second cover 195 can be directly pressed against the first cover 193, which can achieve blind assembly and improve assembly efficiency.

[0037] The center of the annular bottom wall 1733 is recessed toward the external encoder 171 to form a groove 1730. The plate-like body 1951 is accommodated in the groove 1730, maintaining a gap with the bottom of the groove 1730. The plate-like body 1951 of the second cover body 195 does not contact the bottom of the groove 1730, thereby reducing friction. When the user rotates the plate-like body 1951 with his fingertips, the plate-like body 1951 is more sensitive, thereby improving the user experience.

[0038] The above descriptions are only some embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the utility model specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An encoder device, characterized in that: include: Fixed plate; An external encoder assembly with a hollow structure comprises a hollow external encoder and a hollow external upper cover, wherein the fixing portion of the external encoder is mounted on the fixing plate, and the external upper cover is buckled and fixed to the rotating shaft of the external encoder to form the hollow structure; The inner encoder assembly is accommodated in the hollow structure and comprises an inner encoder and an inner upper cover. The fixing portion of the inner encoder is mounted on the fixing plate, and the inner upper cover is buckled and fixed to the rotating shaft of the inner encoder.

2. The encoder device according to claim 1, characterized in that: The inner upper cover includes a first cover body and a second cover body, the first cover body is buckled and fixed to the rotating shaft of the inner encoder, the second cover body is buckled and fixed to the first cover body, the second cover body includes a plate-like body, a limiter and a lower hook, the limiter and the lower hook are formed by extending the plate-like body toward the first cover body, the first cover body is provided with a flange toward the end of the second cover body, the limiter and the lower hook cooperate to clamp the flange.

3. The encoder device according to claim 1, characterized in that: The outer upper cover includes a side wall and an annular bottom wall that are connected to each other. The center of the annular bottom wall is recessed toward the outer encoder to form a groove. The inner upper cover includes a plate-like body and a buckling portion. The plate-like body is accommodated in the groove. The buckling portion is buckled and fixed to the rotating shaft of the inner encoder.

4. The encoder device according to claim 3, characterized in that: The plate-shaped body maintains a gap with the bottom of the groove.

5. The encoder device according to claim 2, characterized in that: The inner encoder comprises a second engaging groove, the second engaging groove is arranged on the rotating shaft of the inner encoder, and the first cover body is provided with a second engaging hook corresponding to the second engaging groove.

6. The encoder device according to claim 5, characterized in that: The second engaging groove is formed by the surface of the rotating shaft of the inner encoder being recessed toward the center thereof, the second hook is formed by the first cover extending toward the inner encoder, and the hook portion of the second hook is engaged in the second engaging groove.

7. The encoder device according to claim 1, characterized in that: The external encoder comprises a limiting notch, the limiting notch is arranged on the rotating shaft of the external encoder, and the external upper cover is provided with a limiting protrusion corresponding to the limiting notch.

8. The encoder device according to claim 7, characterized in that: The limiting notch is concave with its opening facing the outer upper cover. The limiting protrusion is formed by extending the outer upper cover toward its center and the direction of the outer encoder. The limiting protrusion is inserted into the limiting notch from the opening of the limiting notch.

9. The encoder device according to claim 1, characterized in that: The external encoder includes a first engaging groove, which is arranged on the rotating shaft of the external encoder. The external upper cover is provided with a first engaging hook corresponding to the first engaging groove. The first engaging groove is formed by the surface of the rotating shaft of the external encoder being recessed toward the center thereof. The first engaging hook is formed by extending the external upper cover toward the direction of the external encoder, and the hook portion of the first engaging hook is engaged in the first engaging groove.

10. The encoder device according to claim 1, characterized in that: It includes an upper shell and a lower shell, the upper shell has a through hole, the external encoder component passes through the through hole, the upper shell extends toward the lower shell to form a first protrusion, the lower shell forms a second protrusion toward the upper shell, and the first protrusion cooperates with the second protrusion to fix the fixing plate.

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