Encoder

Abstract

The utility model relates to the technical field of encoders, and particularly discloses an encoder which comprises a base, a sealing cover, a circuit substrate, a rubber rotating sheet, a shaft core and a locking assembly. A mounting groove is formed in the base, and the sealing cover covers the base and is used for sealing the mounting groove; the circuit substrate is arranged in the mounting groove; the rubber rotating sheet is rotationally arranged in the mounting groove; a brush is arranged on one side of the rubber rotating piece and abuts against the circuit substrate. One end of the shaft core is inserted into the rubber rotating sheet and used for driving the rubber rotating sheet to rotate, and the other end of the shaft core penetrates through the sealing cover; the locking assembly is arranged on the sealing cover and used for locking or unlocking the shaft core in the radial direction of the shaft core. According to the utility model, when the locking assembly locks the shaft core along the radial direction of the shaft core, the shaft core cannot rotate at the moment, so that the shaft core cannot directly rotate under the action of external force, misoperation is avoided, and normal use of equipment using the encoder is prevented from being influenced due to the fact that the equipment receives wrong instructions; and the conditions of equipment damage and safety accidents are further avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to encoder technical field especially relates to a kind of encoders. BACKGROUND

[0002] Encoder is a kind of signal or data is arranged, and is converted into the signal form that can be used for communication, transmission and storage equipment, it is widely applied in industrial equipment, medical equipment, electronic equipment, life equipment, aerospace, measurement and verification etc. technical field. Among them, absolute rotary encoder is contacted with the conductive track on the base plate by brush, and position information is converted into electrical signal and is output.

[0003] At present, brush is rotated by the driving of shaft core, to change the contact position with conductive track, and then change electrical signal. In prior art, the shaft core of absolute rotary encoder is easily affected by external force and rotated, and then causes misoperation, so that the equipment using the encoder receives error instruction, and then affects normal use, and seriously it can also lead to equipment damage, even produce safety accident. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of encoder to solve the problem that the shaft core of absolute rotary encoder in prior art is easily affected by external force and rotated, and then causes misoperation.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of encoder, comprising:

[0007] Base and cover, the base is provided with mounting groove, the cover is covered on the base, for plugging the mounting groove;

[0008] Circuit substrate, the circuit substrate is located in the mounting groove;

[0009] Rubberized sheet, the rubberized sheet is rotatably arranged in the mounting groove;The side of the rubberized sheet is provided with brush, and the brush is abutted to the circuit substrate;

[0010] Shaft core, one end of the shaft core is inserted into the rubberized sheet, for driving the rubberized sheet to rotate, the other end of the shaft core passes through the cover;

[0011] Locking assembly, the locking assembly is arranged on the cover, for locking or unlocking the shaft core along the radial direction of the shaft core.

[0012] As an optional scheme of the above-mentioned encoder, the locking assembly comprises a mounting seat, a first elastic member and a locking member, the mounting seat is arranged on the cover, and the first elastic member and the locking member are arranged in the mounting seat; one end of the first elastic member abuts against the locking member, and the first elastic member is used for driving the locking member to always move towards the side close to the shaft core; the locking member can be inserted into or separated from the shaft core in the radial direction of the shaft core.

[0013] As an optional scheme of the above-mentioned encoder, the shaft core comprises a locking groove and an unlocking groove which are communicated with each other in the axial direction, and the shaft core is movably arranged between the base and the cover in the axial direction; when the locking member is located in the locking groove, the locking member is clamped in the locking groove; when the locking member is located in the unlocking groove, the locking member can be separated from the unlocking groove in the circumferential direction of the shaft core.

[0014] As an optional scheme of the above-mentioned encoder, the encoder further comprises a second elastic member, the second elastic member is arranged between the rubber rotating piece and the shaft core, and is used for driving the shaft core to always move towards the side away from the base; and the locking groove is located on the side close to the base relative to the unlocking groove.

[0015] As an optional scheme of the above-mentioned encoder, the groove wall of the unlocking groove is arranged in an arc shape in the circumferential direction of the shaft core.

[0016] As an optional scheme of the above-mentioned encoder, one end of the shaft core is provided with a flat portion, the rubber rotating piece is provided with an insertion hole, and the flat portion can be inserted into the insertion hole.

[0017] As an optional scheme of the above-mentioned encoder, a plurality of positioning grooves are arranged on the rubber rotating piece in the circumferential direction, a third elastic member and a positioning member are arranged on the base, one end of the third elastic member abuts against the positioning member, and the third elastic member is used for driving the positioning member to always move towards the side close to the rubber rotating piece.

[0018] As an optional scheme of the above-mentioned encoder, the positioning member is a ball structure.

[0019] As an optional scheme of the above-mentioned encoder, a center positioning column is arranged on the groove bottom of the mounting groove, and the center positioning column can pass through the circuit substrate and the rubber rotating piece.

[0020] As an optional scheme of the above-mentioned encoder, the encoder further comprises a wire harness terminal, one end of the wire harness terminal is connected to the circuit substrate, and the other end of the wire harness terminal passes through the base.

[0021] The encoder has the following beneficial effects:

[0022] The encoder comprises a base, a cover, a circuit board, a glue rotating piece, a shaft core and a locking assembly. The base is provided with a mounting groove, the cover is arranged on the base and used for plugging the mounting groove, the circuit board is arranged in the mounting groove, the glue rotating piece is rotatably arranged in the mounting groove, and the glue rotating piece is provided with a brush on one side, the brush abuts against the circuit board, so that the contact position between the brush and the circuit board can be changed through the rotation of the brush on the circuit board, and then the output electric signal is changed. One end of the shaft core is inserted into the glue rotating piece and used for driving the glue rotating piece to rotate, and the other end of the shaft core penetrates through the cover, so that the user can drive the brush to rotate by rotating the shaft core outside the cover. Meanwhile, the locking assembly is arranged on the cover and used for locking or unlocking the shaft core along the radial direction of the shaft core, so that the shaft core cannot rotate when the locking assembly locks the shaft core along the radial direction of the shaft core, and the shaft core cannot directly rotate due to external force, so as to avoid misoperation, prevent the equipment using the encoder from receiving an error instruction and affecting normal use, and further avoid the equipment damage and safety accidents. After the locking assembly unlocks the shaft core, the encoder can be normally adjusted and used. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 A structural schematic diagram of the encoder provided by the embodiment of the utility model;

[0024] Fig. 2 An exploded schematic diagram of the encoder provided by the embodiment of the utility model;

[0025] Fig. 3 A partial exploded schematic diagram of the encoder provided by the embodiment of the utility model.

[0026] In the drawings:

[0027] 1, base; 11, mounting groove; 111, center positioning column; 12, third elastic piece; 13, positioning piece; 14, limiting groove; 15, second fixed support; 2, cover; 3, circuit board; 4, glue rotating piece; 41, brush; 42, positioning groove; 5, shaft core; 51, locking groove; 52, unlocking groove; 53, flat position part; 6, locking assembly; 61, mounting seat; 611, mounting support; 612, first fixed support; 62, first elastic piece; 63, locking piece; 7, second elastic piece; 8, wire harness terminal. DETAILED DESCRIPTION

[0028] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, with a particular orientation structure and operation, therefore cannot be understood as the limitation of the utility model. In addition, the term "first", "second", only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the term "first position" and "second position" are two different positions, and, the first feature is "above", "above" and "above" of the second feature, including the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" of the second feature, including the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than that of the second feature.

[0030] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the term "installation", "connection", "connection" should be broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0032] As Figs. 1-3 shown, the present embodiment provides an encoder, which can impose instructions on the device using the encoder.

[0033] The encoder comprises a base 1, a cover 2, a circuit board 3, a glue rotating plate 4, a shaft core 5 and a locking assembly 6. The base 1 is provided with a mounting groove 11, the cover 2 is arranged on the base 1 and used for plugging the mounting groove 11, the circuit board 3 is arranged in the mounting groove 11, the glue rotating plate 4 is rotatably arranged in the mounting groove 11, and one side of the glue rotating plate 4 is provided with a brush 41 abutting against the circuit board 3, so that the contact position between the circuit board 3 and the brush 41 can be changed by rotating the brush 41 on the circuit board 3, and the output electric signal is changed. One end of the shaft core 5 is inserted into the glue rotating plate 4 and used for driving the glue rotating plate 4 to rotate, and the other end of the shaft core 5 penetrates through the cover 2, so that the user can drive the brush 41 to rotate by rotating the shaft core 5 outside the cover 2. Optionally, the base 1 and the cover 2 are connected by rivets.

[0034] Meanwhile, the locking assembly 6 is arranged on the cover 2 and used for locking or unlocking the shaft core 5 along the radial direction of the shaft core 5, so that the shaft core 5 cannot rotate when the locking assembly 6 locks the shaft core 5 along the radial direction of the shaft core 5, and the shaft core 5 cannot directly rotate under the action of external force, so as to avoid misoperation, prevent the equipment using the encoder from receiving an error instruction and affecting normal use, and further avoid the equipment from being damaged and a safety accident from occurring. After the locking assembly 6 unlocks the shaft core 5, the encoder can be normally adjusted and used.

[0035] Specifically, the bottom of the mounting groove 11 is provided with a center positioning column 111 penetrating through the circuit board 3 and the glue rotating plate 4 to position the circuit board 3 and the glue rotating plate 4, prevent the glue rotating plate 4 from being deviated when rotating relative to the circuit board 3, and make the brush 41 on the glue rotating plate 4 accurately abut against the corresponding position on the circuit board 3, so as to effectively ensure the contact reliability and improve the signal stability.

[0036] As shown in FIG. 1, the encoder comprises a base 1, a cover 2, a circuit board 3, a glue rotating plate 4, a shaft core 5 and a locking assembly 6. Fig. 2As shown, the locking assembly 6 comprises a mounting seat 61, a first elastic member 62 and a locking member 63, the mounting seat 61 is arranged on the cover 2, the first elastic member 62 and the locking member 63 are arranged in the mounting seat 61, one end of the first elastic member 62 abuts against the locking member 63, for driving the locking member 63 to always move towards the side close to the shaft core 5, and the locking member 63 can be inserted into or separated from the shaft core 5 along the radial direction of the shaft core 5, so that the locking member 63 can be inserted into the shaft core 5 under the driving of the first elastic member 62, to limit the rotation of the shaft core 5 and prevent misoperation, and when the locking member 63 separates from the shaft core 5 by overcoming the elastic force of the first elastic member 62, the shaft core 5 can rotate normally. Specifically, the mounting seat 61 comprises a mounting bracket 611 and a first fixed bracket 612, the mounting bracket 611 is detachably connected to the cover 2, the first fixed bracket 612 is detachably connected to the mounting bracket 611, and the first elastic member 62 and the locking member 63 are arranged between the mounting bracket 611 and the first fixed bracket 612, to facilitate the installation and use of the first elastic member 62 and the locking member 63.

[0037] As shown in Fig. 2 and Fig. 3 As shown, the shaft core 5 comprises a locking groove 51 and an unlocking groove 52 which are communicated with each other in the axial direction, and the shaft core 5 is movably arranged between the base 1 and the cover 2 in the axial direction, when the locking member 63 is located in the locking groove 51, the locking member 63 is clamped in the locking groove 51, and when the locking member 63 is located in the unlocking groove 52, the locking member 63 can be separated from the unlocking groove 52 along the circumferential direction of the shaft core 5, so that the locking and unlocking of the shaft core 5 by the locking assembly 6 can be realized through the axial movement of the shaft core 5, which is convenient and fast, and when the locking member 63 is located in the locking groove 51, the initial angle of the brush 41 relative to the circuit substrate 3 is fixed, which is convenient for users to adjust and use the encoder. Among them, the groove wall of the unlocking groove 52 along the circumferential direction of the shaft core 5 is arranged in an arc shape, so that the locking member 63 can be conveniently separated from the unlocking groove 52, reducing the difficulty of unlocking. Alternatively, the head of the locking member 63 is arranged in an arc shape, so that the difficulty of the locking member 63 separating from the unlocking groove 52 can be further reduced, and during the rotation of the shaft core 5, the locking member 63 avoids scratching the shaft core 5. At the same time, one end of the shaft core 5 is provided with a flat position part 53, and the rubber rotating piece 4 is provided with an insertion hole, so that the flat position part 53 can be inserted into the insertion hole, so that the shaft core 5 can move relative to the rubber rotating piece 4 in the axial direction without affecting the rubber rotating piece 4, and at the same time, the shaft core 5 drives the rubber rotating piece 4 to rotate in the circumferential direction.

[0038] Further, the encoder further comprises a second elastic member 7 arranged between the rubber rotating plate 4 and the shaft core 5, for driving the shaft core 5 to always move away from the base 1, and the locking groove 51 is located on the side close to the base 1 relative to the unlocking groove 52, so that when the shaft core 5 is subjected to an axial force, the shaft core 5 can move against the elastic force of the second elastic member 7, so that the locking piece 63 enters the unlocking groove 52 from the locking groove 51, at this time the shaft core 5 can rotate in the circumferential direction, and when the shaft core 5 is not subjected to an axial force, the shaft core 5 is automatically popped up under the influence of the second elastic member 7, at this time the rotating shaft core 5 moves to the position where the locking piece 63 corresponds to the locking groove 51, and the locking piece 63 is automatically inserted into the locking groove 51 under the influence of the first elastic member 62, thereby realizing self-locking.

[0039] Further, the rubber rotating plate 4 is arranged with a plurality of positioning grooves 42 in the circumferential direction, and the base 1 is provided with a third elastic member 12 and a positioning piece 13, one end of the third elastic member 12 abuts against the positioning piece 13, for driving the positioning piece 13 to always move towards the side close to the rubber rotating plate 4, so that the positioning piece 13 can be abutted in the positioning groove 42 under the influence of the elastic force of the third elastic member 12, to position the angle of the brush 41 relative to the circuit substrate 3, and by rotating the shaft core 5, the positioning piece 13 can be positioned in different positioning grooves 42, thereby improving the adjustment accuracy of the encoder, and different third elastic members 12 can be selected according to different hand feeling and torque requirements of the user to meet the use requirements. Optionally, the positioning piece 13 is a ball structure, so that when the positioning piece 13 is separated from one of the plurality of positioning grooves 42 and enters another, the positioning feeling is clear and crisp, and is wear-resistant and durable. Specifically, the base 1 is provided with a limiting groove 14 communicating with the mounting groove 11, and the third elastic member 12 and the positioning piece 13 are arranged in the limiting groove 14, and the base 1 is detachably connected with a second fixing bracket 15, and the second fixing bracket 15 can cover the limiting groove 14, so as to facilitate the installation and use of the third elastic member 12 and the positioning piece 13.

[0040] Further, the encoder further comprises a wire harness terminal 8, one end of the wire harness terminal 8 is connected to the circuit substrate 3, and the other end of the wire harness terminal 8 passes through the base 1, so that through the plug and play of the wire harness terminal 8, the encoder can be electrically connected with the use equipment, and the operation is convenient. Wherein, the base 1 and / or the cover 2 is provided with a threaded hole, and the encoder can be installed on the use equipment through the screwing of the screw and the threaded hole, which is simple and convenient.

[0041] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. An encoder, characterized by The application relates to an encoder. The encoder comprises a base (1) provided with a mounting groove (11) and a cover (2) covering the base (1) and used for sealing the mounting groove (11); a circuit board (3) arranged in the mounting groove (11); a glue rotating plate (4) arranged in the mounting groove (11) and provided with a brush (41) on one side and abutting against the circuit board (3); a shaft core (5) arranged at one end of the glue rotating plate (4) and used for driving the glue rotating plate (4) to rotate, and the other end of the shaft core (5) penetrating through the cover (2); and a locking assembly (6) arranged on the cover (2) and used for locking or unlocking the shaft core (5) along the radial direction of the shaft core (5). The locking assembly (6) comprises a mounting seat (61) arranged on the cover (2), a first elastic member (62) and a locking member (63) arranged in the mounting seat (61); one end of the first elastic member (62) abutting against the locking member (63) is used for driving the locking member (63) to always move towards one side close to the shaft core (5); and the locking member (63) can be inserted into or separated from the shaft core (5) along the radial direction of the shaft core (5). The shaft core (5) comprises a locking groove (51) and an unlocking groove (52) arranged in the axial direction and movable between the base (1) and the cover (2); when the locking member (63) is located in the locking groove (51), the locking member (63) is clamped in the locking groove (51); and when the locking member (63) is located in the unlocking groove (52), the locking member (63) can be separated from the unlocking groove (52) along the circumferential direction of the shaft core (5). The encoder further comprises a second elastic member (7) arranged between the glue rotating plate (4) and the shaft core (5) and used for driving the shaft core (5) to always move towards one side away from the base (1), and the locking groove (51) is located on one side close to the base (1) relative to the unlocking groove (52). The groove wall of the unlocking groove (52) along the circumferential direction of the shaft core (5) is arranged in an arc shape.

2. The encoder of claim 1, wherein, One end of the shaft core (5) is provided with a flat portion (53), the glue rotating plate (4) is provided with an insertion hole, and the flat portion (53) can be inserted into the insertion hole.

3. The encoder of claim 2, wherein, The glue rotating plate (4) is provided with a plurality of positioning grooves (42) arranged in the circumferential direction, the base (1) is provided with a third elastic member (12) and a positioning member (13), one end of the third elastic member (12) abutting against the positioning member (13) is used for driving the positioning member (13) to always move towards one side close to the glue rotating plate (4).

4. The encoder of claim 3, wherein, The positioning member (13) is a ball structure.

5. The encoder of claim 3, wherein, ​ 6. The encoder of claim 3, wherein, ​ 7. The encoder of claim 1, wherein, ​ 8. The encoder of claim 7, wherein, ​ 9. The encoder according to any one of claims 1 to 8, characterized in that The bottom of the mounting groove (11) is provided with a center positioning column (111) capable of penetrating the circuit substrate (3) and the rubber rotating piece (4).

10. The encoder according to any one of claims 1 to 8, characterized in that The encoder further comprises a wire harness terminal (8), one end of which is connected to the circuit substrate (3), and the other end of which penetrates the base (1).

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