encoder

Abstract

The utility model provides a kind of encoder, it is related to encoder technical field.Encoder includes shaft sleeve component, encoding component and connecting support:shaft sleeve component includes shaft sleeve body and axle core, axle core is connected in shaft sleeve body, and it extends along up-down direction;Encoding component is spaced apart and is provided with multiple terminal pins along left-right direction on it, multiple terminal pins all extend along up-down direction, encoding component is set below shaft sleeve body, and the upper end of multiple terminal pins all protrudes from the upper end surface of shaft sleeve body;Connecting support is connected in shaft sleeve body, and encoding component is located between connecting support and shaft sleeve body;Wherein, when axle core is inserted in mounting through-hole, multiple terminal pins are all inserted in PCB board, and all protrude from the upper end surface of PCB board.The encoder can improve the applicability in the whole machine equipment with compact space layout.

Description

Technical Field

[0001] This utility model relates to the field of encoder technology, and in particular to an encoder. Background Technology

[0002] As an important component widely used in many fields, the encoder's core function is to accurately convert mechanical motion parameters such as displacement and speed into electrical signals, thereby enabling effective monitoring and precise control of mechanical systems.

[0003] Currently, most traditional encoders use a forward-facing pin structure. In this structure, the pins extend outward from the encoder in a predetermined forward layout to connect with external circuitry. However, in actual assembly scenarios, because the forward-facing pins are exposed on the PCB board, their structure occupies a relatively large amount of internal space when installed inside the machine. This makes forward-facing pin encoders unsuitable for compact equipment layouts. Utility Model Content

[0004] The purpose of this invention is to provide an encoder that can improve applicability in compact equipment.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An encoder for reverse insertion connection to a PCB board, the PCB board having mounting through holes, the encoder comprising:

[0007] A bushing assembly includes a bushing body and a shaft core, wherein the shaft core is connected to the bushing body and extends in the vertical direction;

[0008] The encoding component has multiple terminal pins spaced apart along the left-right direction, and the multiple terminal pins extend along the up-down direction. The encoding component is located below the bushing body, and the upper ends of the multiple terminal pins extend out of the upper end face of the bushing body.

[0009] A connecting bracket is connected to the bushing body, and the encoding component is located between the connecting bracket and the bushing body;

[0010] When the shaft core is inserted into the mounting through hole, multiple terminal pins are inserted into the PCB board and extend out of the upper surface of the PCB board.

[0011] As a further technical solution, the bushing assembly also includes at least one limiting member, which is fixedly disposed on one side of the bushing body and cooperates with the bushing body to form a limiting space, and the upper ends of the plurality of terminal feet extend through the limiting space and out of the upper end face of the bushing body.

[0012] As a further technical solution, a plurality of partition plates are provided between the limiting member and the bushing body. The plurality of partition plates are spaced apart in the left and right direction to divide the limiting space into a plurality of limiting areas. The plurality of terminal pins are inserted into the plurality of limiting areas one by one.

[0013] As a further technical solution, the limiting member extends in the vertical direction so that the multiple limiting areas extend in the vertical direction to form multiple limiting channels.

[0014] As a further technical solution, the bushing assembly also includes a wavy disc and a metal spring, the wavy disc being disposed below the bushing body, the metal spring being disposed between the wavy disc and the bushing body, and the lower end of the shaft core being connected to the wavy disc;

[0015] The metal spring is provided with a downward protruding bulge, and the upper surface of the wave plate is provided with a plurality of toothed portions spaced circumferentially. Rotating the shaft core can cause the bulge to abut against the toothed portions.

[0016] As a further technical solution, a snap-fit ​​groove is provided in the middle of the oscillating disk, and the lower end of the shaft core is snapped into the snap-fit ​​groove.

[0017] As a further technical solution, the bushing assembly also includes a sealing ring, which is sleeved on the side of the shaft core near the oscillating disk.

[0018] As a further technical solution, the encoding component also includes an encoding body, a plurality of terminal pins are disposed on the encoding body, a plurality of brush claws are embedded at intervals on the upper end of the encoding body, a metal contact piece is embedded on the lower end of the oscillating disk, and the shaft is rotated so that the metal contact piece selectively conducts with the plurality of brush claws.

[0019] As a further technical solution, the encoding component also includes a shim, which is disposed between the encoding body and the bushing assembly.

[0020] As a further technical solution, both ends of the connecting bracket are bent upward to form a connecting part. One of the connecting part and the corresponding side wall of the bushing body is provided with a snap-fit ​​protrusion, and the other is provided with a slot that snaps into the snap-fit ​​protrusion.

[0021] Compared with the prior art, the encoder provided by this utility model has the following technical advantages:

[0022] In this embodiment, the encoder is connected to the PCB board via a reverse insertion. Specifically, the encoding component is located below the bushing body, and the upper ends of multiple terminal pins extend beyond the upper end of the bushing body. The connecting bracket is connected to the bushing body, and the encoding component is located between the connecting bracket and the bushing body to assemble the encoder. Then, the shaft core is inserted into the mounting hole, and multiple terminal pins are inserted into the PCB board, thereby connecting the encoder to the PCB board. Thus, when the encoder is connected to the PCB board, and the upper ends of multiple terminal pins extend beyond the PCB board, the extended ends of multiple terminal pins are all located within the peripheral space of the shaft core. Compared to a forward-inserted encoder, the exposed ends of multiple terminal pins do not occupy space on the side of the encoder opposite to the shaft core, thereby reducing the encoder's own spatial volume and minimizing the amount of internal space occupied after installation in the overall equipment. This allows the encoder to be used in compact equipment, ensuring its applicability within such spaces. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a simplified schematic diagram of the encoder connected to the PCB board in reverse according to an embodiment of the present invention;

[0025] Figure 2 This is an exploded view of the encoder provided in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the encoder provided in an embodiment of the present invention;

[0027] Figure 4 This is a partial structural schematic diagram of the shaft sleeve assembly in the encoder provided in this embodiment of the utility model;

[0028] Figure 5 This is a partial structural diagram of the encoding component in the encoder provided in this embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the wave disk in the encoder provided in this embodiment of the utility model;

[0030] Figure 7This is a simplified schematic diagram of the existing encoder connected to the PCB board.

[0031] In the picture:

[0032] 10. PCB board;

[0033] 110. Bushing body; 120. Shaft core; 121. Limiting flange; 130. Limiting component; 131. Partition plate; 132. Limiting channel; 140. Flushing plate; 141. Toothed part; 142. Snap-fit ​​groove; 143. Metal contact piece; 150. Metal spring; 160. Sealing ring;

[0034] 210 Terminal pin; 220 Encoding body; 221 Brush claw; 230 Gasket;

[0035] 300. Connecting bracket; 310. Connecting part; 320. Snap-fit ​​protrusion; 330. Snap-fit ​​groove. Detailed Implementation

[0036] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0037] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0038] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0039] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0040] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0041] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0042] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0043] Combination Figure 7 As shown, multiple terminal pins in the forward-pin encoder extend away from the axis. When the forward-pin encoder is connected to the PCB board 10, multiple terminal pins are exposed on the lower end face of the PCB board 10, thereby increasing the space occupied by the encoder on both sides of the PCB board 10. When the forward-pin encoder is installed in the whole machine, the inside of the whole machine requires a larger installation space corresponding to the forward-pin encoder.

[0044] Combination Figures 1 to 6As shown, the encoder provided in this embodiment is connected to the PCB board 10 in reverse. The PCB board 10 is provided with mounting through holes. The encoder includes a bushing assembly, an encoding assembly, and a connecting bracket 300. The bushing assembly includes a bushing body 110 and a shaft core 120. The shaft core 120 is connected to the bushing body 110 and extends in the vertical direction. The encoding assembly is provided with a plurality of terminal pins 210 spaced apart in the left-right direction. The plurality of terminal pins 210 all extend in the vertical direction. The encoding assembly is located below the bushing body 110, and the upper ends of the plurality of terminal pins 210 all extend out of the upper end face of the bushing body 110. The connecting bracket 300 is connected to the bushing body 110, and the encoding assembly is located between the connecting bracket 300 and the bushing body 110. When the shaft core 120 is inserted into the mounting through hole, the plurality of terminal pins 210 are all inserted into the PCB board 10 and all extend out of the upper end face of the PCB board 10.

[0045] In this embodiment, the encoder is connected to the PCB board 10 in reverse. Specifically, the encoding component is located below the bushing body 110, and the upper ends of multiple terminal pins 210 extend out of the upper end of the bushing body 110. The connecting bracket 300 is connected to the bushing body 110, and the encoding component is located between the connecting bracket 300 and the bushing body 110 to assemble the encoder. Then, the shaft core 120 is inserted into the mounting hole, and multiple terminal pins 210 are inserted into the PCB board 10, thereby connecting the encoder to the PCB board 10. Thus, when the encoder is connected to the PCB board 10, and the upper ends of the multiple terminal pins 210 extend out of the PCB board 10, the extended ends of the multiple terminal pins 210 are all located within the peripheral space of the shaft core 120. Compared with the encoder with forward-facing pins, the exposed ends of the multiple terminal pins 210 do not occupy the space on the side of the encoder away from the shaft core 120. This reduces the size of the encoder itself and the amount of internal space occupied by the encoder after it is installed in the complete equipment. This allows the encoder to be used in the complete equipment with a compact spatial layout, ensuring the applicability of the encoder in the complete equipment with a compact spatial layout.

[0046] To ensure the connection strength and stability of the connecting bracket 300 after it is connected to the bushing body 110, and thus ensure the overall structural stability of the encoder, both ends of the connecting bracket 300 are bent upward to form connecting parts 310. One of the connecting parts 310 and the corresponding side wall of the bushing body 110 is provided with a snap-fit ​​protrusion 320, and the other is provided with a slot 330 that snaps into the snap-fit ​​protrusion 320.

[0047] Specifically, the connecting bracket 300 has a U-shaped cross-section in the front-to-back direction. Both connecting portions 310 are provided with slots 330, and the bushing body 110 has corresponding engaging protrusions 320 on its two opposite sidewalls in the left-to-right direction. After the encoder assembly is placed below the bushing body 110, the opening of the connecting bracket 300 is oriented towards the encoder assembly, and the connecting bracket 300 is pushed closer to the encoder assembly until the two slots 330 engage with the two engaging protrusions 320 one-to-one. The engagement of the slots 330 with the corresponding engaging protrusions 320 reduces the difficulty of encoder assembly while improving the overall structural stability of the encoder.

[0048] Preferably, the bushing assembly further includes at least one limiting member 130, which is fixedly disposed on one side of the bushing body 110 and cooperates with the bushing body 110 to form a limiting space. The upper ends of the plurality of terminal feet 210 extend through the limiting space and out of the upper end face of the bushing body 110.

[0049] In this embodiment, the limiting member 130 is disposed on the front side wall of the bushing body 110 so that the limiting member 130 cooperates with the front side wall to form a limiting space, thereby avoiding interference with the connecting bracket 300; at the same time, the limiting space spatially limits the multiple terminal pins 210, reducing the probability that the multiple terminal pins 210 will be bent and deformed in the front-back direction due to excessive length.

[0050] Furthermore, to reduce the probability of bending and deformation of the multiple terminal pins 210 in the left-right and up-down directions due to excessive length, multiple partition plates 131 are provided between the limiting member 130 and the bushing body 110. These partition plates 131 are spaced apart in the left-right direction, dividing the limiting space into multiple limiting regions. The multiple terminal pins 210 are inserted into these limiting regions one-to-one. The limiting member 130 extends in the up-down direction, so that each limiting region extends in the up-down direction to form multiple limiting channels 132. This ensures a good electrical connection between the terminal pins 210 and the PCB board 10, improving the stability and reliability of encoder signal transmission. It also reduces electromagnetic coupling caused by deformation of the terminal pins 210, improving the encoder's immunity to electromagnetic interference.

[0051] As a further technical solution, the bushing assembly also includes a wave plate 140 and a metal spring 150. The wave plate 140 is located below the bushing body 110, and the metal spring 150 is located between the wave plate 140 and the bushing body 110. The lower end of the shaft core 120 is connected to the wave plate 140. The metal spring 150 has a downwardly protruding convex bulge. Multiple toothed portions 141 are spaced circumferentially on the upper surface of the wave plate 140. Rotating the shaft core 120 allows the convex bulge to abut against the toothed portions 141. With this configuration, when the wave plate 140 rotates, the toothed portions and the convex bulge on the metal spring 150 engage with each other, ensuring both a tactile feel for positioning and accurate positioning of the wave plate 140 at each preset position, thereby improving the accuracy and stability of the encoder.

[0052] To further enhance the connection strength and stability between the shaft core 120 and the wave plate 140, thereby ensuring the stability of the encoder's use and operation, in this embodiment, a locking groove 142 is provided in the middle of the wave plate 140, and the lower end of the shaft core 120 is locked into the locking groove 142. The specific shape of the locking groove 142 is adaptively set according to actual needs. The lower end of the shaft core 120 is correspondingly set with the locking groove 142 to ensure that relative rotation between the shaft core 120 and the wave plate 140 is avoided when the shaft core 120 drives the wave plate 140 to rotate. No specific limitation is made here.

[0053] Preferably, the bushing assembly further includes a sealing ring 160, which is sleeved on the side of the shaft core 120 near the wave plate 140.

[0054] Combination Figure 1 As shown, in this embodiment, a limiting flange 121 is provided on the side of the shaft core 120 near the fluctuating disk 140, and a sealing ring 160 is sleeved on the side of the shaft core 120 near the fluctuating disk 140. When the lower end of the shaft core 120 is locked into the locking groove 142, the fluctuating disk 140 is disposed on the bushing body 110, and the connecting bracket 300 is connected to the bushing body 110, the upper end of the shaft core 120 extends above the bushing body 110 through the mounting through hole, and the sealing ring 160 abuts against the limiting flange 121 and the bushing body 110. By setting the sealing ring 160, both sides of the sealing ring 160 are tightly fitted between the shaft core 120 and the bushing body 110, forming a sealing barrier at the mounting through hole, effectively preventing external liquid from entering the encoder along the shaft core 120, protecting the internal electronic components and mechanical parts from moisture or corrosion, thereby improving the reliability and service life of the encoder; at the same time, it prevents dust, particulate matter and other solid impurities from entering the encoder, thereby ensuring the normal operation of the encoder.

[0055] Preferably, the encoding assembly further includes an encoding body 220, with multiple terminal pins 210 disposed on the encoding body 220. Multiple brush claws 221 are spaced apart and embedded in the upper end of the encoding body 220. The first end of each brush claw 221 is embedded in the upper end of the encoding body 220, and the second end is a free end protruding away from the upper end of the encoding body 220, so that each brush claw 221 is elastic. A metal contact piece 143 is embedded in the lower end of the oscillating disk 140. Rotating the shaft core 120 allows the metal contact piece 143 to selectively conduct with the multiple brush claws 221. When the shaft core 120 rotates, it drives the oscillating disk 140 to rotate, while the brush claws 221 remain stationary relative to the encoding body 220. During the rotation of the oscillating disk 140, the metal contact piece 143 moves relative to the multiple brush claws 221. As the oscillating disk 140 rotates, a conductive circuit is formed when the metal contact piece 143 contacts the brush claw 221. The circuit is broken when the metal contact piece 143 separates from the brush claw 221. By changing the rotation direction and speed of the shaft, the encoder encoding signal is output.

[0056] Since the first ends of multiple brush claws 221 are embedded in the upper end of the encoder body 220, and the metal contact piece 143 is embedded in the wave plate 140, the embedding structure of the brush claws 221 in the encoder body 220 enables them to resist vibration and mechanical stress during operation, reduce displacement and loosening, and ensure stable signal transmission. The embedding of the metal contact piece 143 in the wave plate 140 enhances the bonding strength, avoids deformation and displacement during long-term use, and significantly improves the overall structural reliability of the encoder. The tight embedding of the brush claws 221 with the encoder body 220 and the metal contact piece 143 with the wave plate 140 forms a relatively closed electromagnetic environment, reducing external electromagnetic signal interference and ensuring accurate and stable signal transmission of the encoder in complex electromagnetic environments, thereby improving the encoder's anti-interference capability. Furthermore, the embedding structure makes the internal layout of the encoder compact and reasonable, reducing mutual interference between components and space occupation, further improving the applicability of the encoder in compact equipment. Meanwhile, the shape, size and distribution of multiple brush claws 221 and metal contact pieces 143 can be flexibly adjusted according to the encoder size, performance requirements and overall equipment structure characteristics to meet diverse application scenarios, further improve the encoder's versatility and adaptability, and broaden the encoder's application fields and market scope.

[0057] To further improve the sealing between the encoder assembly and the bushing assembly, and to prevent external debris from entering the encoder through the space between them and affecting its performance, this embodiment includes a gasket 230 disposed between the encoder body 220 and the bushing body 110. Additionally, the gasket 230 prevents damage to the encoder body 220 or the bushing assembly due to mutual contact, further enhancing the encoder's structural stability.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An encoder, which is connected to a PCB board (10) in a reverse plug-in manner, said PCB board (10) being provided with mounting through holes, characterized in that, The encoder comprises: A sleeve assembly comprising a sleeve body (110) and a shaft core (120), the shaft core (120) being connected to the sleeve body (110) and extending in the up-down direction; An encoding assembly, a plurality of terminal pins (210) being arranged on the encoding assembly in the left-right direction, the plurality of terminal pins (210) extending in the up-down direction, the encoding assembly being arranged below the sleeve body (110), and the upper ends of the plurality of terminal pins (210) extending out of the upper end surface of the sleeve body (110); A connecting bracket (300) connected to the sleeve body (110), and the encoding assembly being located between the connecting bracket (300) and the sleeve body (110); When the shaft core (120) is inserted into the mounting through hole, the plurality of terminal pins (210) are inserted into the PCB board (10) and extend out of the upper end surface of the PCB board (10).

2. The encoder of claim 1, wherein, The sleeve assembly further comprises at least one limiting piece (130), the limiting piece (130) being fixedly arranged on one side of the sleeve body (110) and cooperating with the sleeve body (110) to form a limiting space, and the upper ends of the plurality of terminal pins (210) extending out of the upper end surface of the sleeve body (110) through the limiting space.

3. The encoder of claim 2, wherein, A plurality of partition plates (131) are arranged between the limiting piece (130) and the sleeve body (110), the plurality of partition plates (131) being arranged in the left-right direction and separating the limiting space into a plurality of limiting areas, and the plurality of terminal pins (210) being inserted into the plurality of limiting areas one by one.

4. The encoder of claim 3, wherein, The limiting piece (130) extends in the up-down direction, so that the plurality of limiting areas extend in the up-down direction to form a plurality of limiting channels (132).

5. The encoder of claim 1, wherein, The sleeve assembly further comprises a wavy disc (140) and a metal spring (150), the wavy disc (140) being arranged below the sleeve body (110), the metal spring (150) being arranged between the wavy disc (140) and the sleeve body (110), and the lower end of the shaft core (120) being connected to the wavy disc (140); The metal spring (150) is provided with a convex hull (151) protruding downward, the upper end surface of the wavy disc (140) is provided with a plurality of tooth-shaped portions (141) arranged in the circumferential direction, and rotating the shaft core (120) can make the convex hull (151) abut against the tooth-shaped portion (141).

6. The encoder of claim 5, wherein, The middle part of the wavy disc (140) is provided with a clamping groove (142), and the lower end of the shaft core (120) is clamped and limited in the clamping groove (142).

7. The encoder of claim 5, wherein, The sleeve assembly further comprises a sealing ring (160), and the sealing ring (160) is sleeved on the side of the shaft core (120) close to the wavy disc (140).

8. The encoder of claim 5, wherein, The coding assembly further comprises a coding body (220), a plurality of terminal pins (210) are arranged on the coding body (220), a plurality of brush claws (221) are arranged on the upper end of the coding body (220) in a spaced manner, and a metal contact sheet (143) is arranged on the lower end of the undulating disc (140); the shaft core (120) is rotated to selectively conduct the metal contact sheet (143) and the plurality of brush claws (221).

9. The encoder of claim 8, wherein, The coding assembly further comprises a gasket (230), which is arranged between the coding body (220) and the shaft sleeve assembly.

10. The encoder according to any of claims 1-9, characterized by Both ends of the connecting bracket (300) are bent upwards to form a connecting portion (310), one of the two corresponding sidewalls of the shaft sleeve body (110) is provided with a clamping protrusion (320), and the other is provided with a clamping groove (330) matched with the clamping protrusion (320).

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