Encoder and regulator

Abstract

The utility model relates to the technical field of electrical apparatus elements, and provides an encoder and a regulator, which comprises an axis, a base body, an insulating shaft sleeve and a bracket, a base body is mounted at the bottom of the axis, the insulating shaft sleeve sleeves the axis, and the base body and the insulating shaft sleeve are embedded to form a mounting cavity for mounting the axis; the support wraps the outer side of the base body and is combined with the insulating shaft sleeve to press the insulating shaft sleeve to be tightly connected with the base body. According to the utility model, the base body and the insulating shaft sleeve are embedded and installed to form the installation cavity for installing the axis, the semi-wrapped support is designed to wrap the outer side of the base body and is combined and installed with the insulating shaft sleeve to press tight connection of the insulating shaft sleeve and the base body, and tight installation of the encoder is realized by using the support. And meanwhile, electromagnetic isolation of the encoder is realized by utilizing the insulating shaft sleeve, so that the anti-interference performance is effectively improved, and the service life of equipment and the signal precision are guaranteed.

Description

Technical Field

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

[0002] An encoder is a device that encodes and converts signals (such as bitstreams) or data into a signal form that can be used for communication, transmission, and storage. Encoders convert angular or linear displacement into electrical signals; the former is called a code disk, and the latter a code scale. According to the readout method, encoders can be divided into contact and non-contact types; according to their working principle, they can be divided into incremental and absolute types. Incremental encoders convert displacement into periodic electrical signals, and then convert these electrical signals into counting pulses, using the number of pulses to represent the magnitude of the displacement. Each position of an absolute encoder corresponds to a specific digital code; therefore, its reading depends only on the starting and ending positions of the measurement, and is independent of the intermediate steps of the measurement.

[0003] In existing technologies, the metal parts on the encoder surface are tightly attached to the bottom of the PCB board after installation, which can negatively impact the performance of electronic devices, such as causing electromagnetic interference and electrostatic discharge problems, leading to functional failures. Furthermore, since encoders operate in humid, dusty, or clean industrial environments, these harsh conditions directly affect the device's lifespan and signal accuracy, thus requiring strong waterproof performance. Utility Model Content

[0004] This invention provides an encoder and regulator that solves the technical problems of poor anti-interference performance and poor waterproof performance of existing encoders, which lead to high equipment failure rate and short lifespan.

[0005] To solve the above technical problems, this utility model provides an encoder, including a shaft, a base body, an insulating bushing, and a bracket;

[0006] The base body is installed at the bottom of the shaft, and the insulating bushing is sleeved on the shaft. The base body and the insulating bushing are fitted together to form an installation cavity for installing the shaft.

[0007] The bracket covers the outside of the base body and is assembled with the insulating bushing to press the insulating bushing tightly connected to the base body.

[0008] This basic design sets up a mounting cavity for the base body and insulating bushing to fit together and install the shaft. A semi-enclosed bracket is designed to cover the outside of the base body and is combined with the insulating bushing to press the insulating bushing tightly connected to the base body. The bracket is used to achieve tight installation of the encoder. The waterproofness of the product is further improved by eliminating the need for drilling. At the same time, the insulating bushing is used to achieve electromagnetic isolation of the encoder, thereby effectively improving anti-interference performance and ensuring equipment life and signal accuracy.

[0009] In a further embodiment, the top surface of the side wall of the base body is provided with a waterproof platform that fits into the insulating bushing, and one end is provided with an outwardly extending connecting terminal, the connecting terminal extending in the same direction as the shaft.

[0010] The waterproof platform is an upward-protruding annular limiting structure with arc-shaped corners;

[0011] The waterproof platform includes an inner vertical surface and an outer fitting slope; the fitting slope is inclined toward the inner cavity of the base body and abuts tightly against the insulating bushing.

[0012] In a further embodiment, the edge of the insulating bushing is recessed inward to form a waterproof groove that fits into the waterproof platform;

[0013] The waterproof groove is an annular groove, and its sidewall slopes outward from the bottom of the groove until it connects to the top surface of the edge of the insulating bushing, and abuts tightly against the fitting slope of the insulating bushing.

[0014] The insulating bushing is formed from insulating material.

[0015] This solution is based on waterproofing requirements, using a waterproof platform and annular groove for installation. The inward-sloping bottom and the outward-sloping end of the annular groove work together. When the insulating bushing is pressed together, the angle of the slope guides the pressure to concentrate inward, creating a tightening effect (similar to a wedge structure), increasing the contact pressure at the sealing interface. At the same time, the inward slope guides external water flow to slide down the slope, preventing water from accumulating at the joint and reducing the risk of seepage. The curved corners facilitate the fitting installation and also reduce manufacturing costs by simplifying the manufacturing process.

[0016] In a further embodiment, a positioning plate and a sealing ring are also included; the positioning plate has a through mounting hole, which is nested on the inner sidewall of the insulating bushing and movably connected to the shaft; the sealing ring is sleeved on the rotating shaft of the shaft, with its bottom abutting against the rotating shaft and its top abutting against the insulating bushing to perform a sealing assembly.

[0017] This solution further incorporates a sealing ring between the shaft and the insulating bushing. The elastic sealing ring can absorb shaft vibration or radial runout, and prevent contaminants such as moisture and debris from entering between the bushing and the shaft, ensuring the normal operation of the encoder.

[0018] In a further embodiment, the insulating bushing has a through hole in the middle to avoid the shaft center, and a mounting position is provided on the outside of the through hole; the mounting position is recessed inward to place the positioning piece, and a protruding positioning post is provided in the middle of the mounting position; the positioning post cooperates with the positioning hole on the positioning piece.

[0019] In a further embodiment, the bracket includes a base plate, the two sides of which are bent upward to form side plates to fit the base body;

[0020] The side plate is provided with a first mounting buckle at both ends and a second mounting buckle in the middle. After the first mounting buckle is embedded in the insulating bushing, it is bent and pressed to tightly connect the insulating bushing to the base body.

[0021] The second mounting buckle bends horizontally outward in the middle and extends vertically upward at the top.

[0022] Based on the assembly and installation requirements of the encoder, this solution is designed with a first mounting buckle and a second mounting buckle at both ends and the middle of the side plate, respectively. The first mounting buckle is inserted into the insulating bushing and then bent to press and compress the insulating bushing to tightly connect it with the base body, making the four corners more stable. The second mounting buckle is inserted into the PCB board to achieve back-clamping installation, which, together with the insulating bushing, achieves electromagnetic isolation from the PCB board.

[0023] In a further embodiment, the outer side walls of both sides of the insulating bushing are provided with mounting buckles, which are vertical openings that cooperate with the second mounting buckle vertically; the front of the insulating bushing is provided with a bending groove corresponding to the mounting buckle, which is recessed downward and fits into the upper part of the bent second mounting buckle.

[0024] This design features a mounting buckle with a vertical opening on the side wall of the insulating bushing, thus avoiding the impact of drilling on the plate surface on the sealing of the mounting cavity; at the same time, a bending groove is provided to cooperate with the bending and pressing of the first mounting buckle, which can further improve the sealing of the mounting cavity through the pressing strength.

[0025] In a further embodiment, the base body has an outwardly protruding positioning block in the center of its back side and positioning strips around its perimeter; the bracket has a positioning hole in the center of its base plate that corresponds to the positioning block, the positioning hole penetrating the plate surface, and the bracket is nested on the base body through the positioning block and positioning strips.

[0026] This design features a positioning block in the center of the back of the base body and positioning strips around it. The central positioning block guides the bracket into initial position, while the surrounding positioning strips then fit together naturally, simplifying the assembly process.

[0027] This utility model also provides an adjuster, including a PCB board and an encoder as described above. The PCB board has fixing holes on both sides and a soldering hole at the front end. The encoder is embedded from the back of the PCB board, and a second mounting buckle on the encoder is embedded in the fixing hole and its pins are embedded in the soldering hole.

[0028] This solution utilizes the second mounting clip on the bracket to achieve back-mounting of the encoder, controlling the encoder to be embedded from the back of the PCB board, with the pins soldered to the PCB board for fixation. This effectively saves space in the equipment installation location, improves the client's production efficiency, and reduces costs. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of an encoder and regulator provided in an embodiment of the present utility model;

[0030] Figure 2 This is provided by the embodiment of the present utility model. Figure 1 Sectional view in;

[0031] Figure 3 This is provided by the embodiment of the present utility model. Figure 1 Front and rear views of the base body;

[0032] Figure 4 This is provided by the embodiment of the present utility model. Figure 1 Front and rear views of the insulating bushing;

[0033] Figure 5 This is provided by the embodiment of the present utility model. Figure 1 3D structural diagram of the mid-bracket;

[0034] Figure 6 This is a three-dimensional structural diagram of a regulator provided in an embodiment of the present utility model;

[0035] Figure 7 This is provided by the embodiment of the present utility model. Figure 6 Exploded view.

[0036] The components include: shaft 1; base body 2, waterproof platform 21, connecting terminal 22, positioning block 23, positioning strip 24; insulating bushing 3, waterproof groove 31, through hole 32, mounting position 33, positioning post 34, mounting buckle position 35, bending groove 36; bracket 4, base plate 41, first mounting buckle 42, second mounting buckle 43, positioning hole 44; positioning piece 5, mounting hole 51; sealing ring 6; PCB board 7, fixing hole 71, welding hole 72, connector 73, mounting through hole 74. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. The embodiments are given for illustrative purposes only and should not be construed as limiting the utility model. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of this utility model, because many changes can be made to this utility model without departing from the spirit and scope of this utility model.

[0038] Example 1

[0039] An encoder is provided in this embodiment of the utility model, such as Figures 1-5 As shown, in this embodiment, it includes a shaft 1, a base body 2, an insulating bushing 3, and a bracket 4;

[0040] The base body 2 is installed at the bottom of the shaft 1, and the insulating bushing 3 is sleeved on the shaft 1. The base body 2 and the insulating bushing 3 are fitted together to form an installation cavity for installing the shaft 1.

[0041] The bracket 4 covers the outside of the base body 2 and is assembled with the insulating bushing 3 to press the insulating bushing 3 tightly connected to the base body 2.

[0042] In this embodiment, the top surface of the side wall of the base body 2 is provided with a waterproof platform 21 that fits into the insulating bushing 3, and one end is provided with an outwardly extending connecting terminal 22, which extends in the same direction as the shaft 1;

[0043] The waterproof platform 21 is an upwardly protruding annular limiting structure with arc-shaped corners;

[0044] The waterproof platform 21 includes an inner vertical surface and an outer fitting slope; the fitting slope is inclined towards the inner cavity of the base body 2 and closely abuts against the insulating bushing 3.

[0045] In this embodiment, the edge of the insulating bushing 3 is recessed inward to form a waterproof groove 31 that fits into the waterproof platform 21;

[0046] The waterproof groove 31 is an annular groove, and its sidewall slopes outward from the bottom of the groove until it connects to the top edge of the insulating bushing 3 and tightly abuts against the fitting inclined surface of the insulating bushing 3.

[0047] The insulating bushing 3 is molded from insulating material, such as integrally molded plastic.

[0048] This embodiment is designed with a waterproof platform 21 and an annular groove for installation based on waterproof requirements. The inward-sloping bottom and the outward-sloping annular groove at the end are used for the fit. When the insulating bushing 3 is pressed, the inclination angle of the slope guides the pressure to concentrate inward, forming a tightening effect (similar to a wedge structure), which increases the contact pressure of the sealing interface. At the same time, the inward slope can guide the external water flow to slide down the slope, avoiding water accumulation at the joint and reducing the risk of seepage. The arc-shaped corner is beneficial for the fit and installation, and can also reduce manufacturing costs by reducing manufacturing difficulty.

[0049] In this embodiment, a positioning piece 5 and a sealing ring 6 are also included. The positioning piece 5 has a through mounting hole 51, which is nested on the inner wall of the insulating bushing 3 and movably connected to the shaft 1. The sealing ring 6 is sleeved on the rotating shaft of the shaft 1 (for example, the rotating shaft has a stepped limiting structure to install the sealing ring 6, which is a common technical means in the art and will not be described in detail in this embodiment). The bottom abuts against the rotating shaft and the top abuts against the insulating bushing 3 to perform a sealing assembly.

[0050] The sealing ring 6 is preferably made of elastic rubber.

[0051] In this embodiment, a sealing ring 6 is nested between the shaft 1 and the insulating bushing 3. The elastic sealing ring 6 can absorb the vibration or radial runout of the shaft 1 and prevent contaminants such as moisture and debris from entering between the bushing and the shaft 1, thus ensuring the normal operation of the encoder.

[0052] In this embodiment, the insulating bushing 3 has a through hole 32 in the middle to avoid the shaft 1, and a mounting position 33 is provided on the outside of the through hole 32; the mounting position 33 is recessed inward to place the positioning piece 5, and a protruding positioning post 34 is provided in the middle of the mounting position 33; the positioning post 34 cooperates with the positioning hole 44 on the positioning piece 5.

[0053] In this embodiment, the bracket 4 includes a base plate 41, and the two sides of the base plate 41 are bent upward to form side plates to fit the base body 2;

[0054] The side plate is provided with a first mounting buckle 42 at both ends and a second mounting buckle 43 in the middle. After the first mounting buckle 42 is embedded in the insulating bushing 3, it is bent and pressed to tightly connect the insulating bushing 3 with the base body 2.

[0055] The second mounting buckle 43 bends horizontally outward in the middle and extends vertically upward at the top.

[0056] Preferably, the bracket 4 is a metal component.

[0057] Based on the assembly and installation requirements of the encoder, a first mounting buckle 42 and a second mounting buckle 43 are respectively set at both ends and the middle part of the side plate. The first mounting buckle 42 is inserted into the insulating bushing 3 and then bent to press and compress the insulating bushing 3 to tightly connect with the base body 2, making the four corner fixed assembly more stable. The second mounting buckle 43 is inserted into the PCB board 7 to achieve back buckle installation, and works with the insulating bushing 3 to achieve electromagnetic isolation from the PCB board 7.

[0058] In this embodiment, the outer side walls of the insulating bushing 3 are provided with mounting buckles 35, which are vertical openings that fit together with the second mounting buckle 43. The front side of the insulating bushing 3 is provided with a bending groove 36 corresponding to the mounting buckle 35, which is recessed downward and fits into the upper part of the bent second mounting buckle 43.

[0059] In this embodiment, a mounting buckle 35 with a vertical opening is provided on the side wall of the insulating bushing 3, thereby avoiding the impact of drilling on the plate surface on the sealing of the mounting cavity; at the same time, a bending groove 36 is provided to cooperate with the bending and pressing of the first mounting buckle 42, which can further improve the sealing of the mounting cavity through the pressing strength.

[0060] In this embodiment, the base body 2 has an outwardly protruding positioning block 23 in the middle of its back side and positioning strips 24 around its perimeter; the base plate 41 of the bracket 4 has a positioning hole 44 in the middle corresponding to the positioning block 23, the positioning hole 44 penetrates the plate surface, and the bracket 4 is nested on the base body 2 through the positioning block 23 and the positioning strips 24.

[0061] In this embodiment, a positioning block 23 is provided in the middle of the back of the base body 2, and positioning strips 24 are provided around it. The central positioning block 23 is used to guide the bracket 4 to be initially positioned; the surrounding positioning strips 24 then naturally fit together, simplifying the assembly process.

[0062] In this embodiment of the utility model, the base body 2 and the insulating bushing 3 are fitted together to form an installation cavity for mounting the shaft 1. A semi-enclosed bracket 4 is designed to cover the outside of the base body 2 and is combined with the insulating bushing 3 to press the insulating bushing 3 and the base body 2 tightly connected. The bracket 4 is used to achieve tight mounting of the encoder. The waterproofness of the product is further improved by eliminating the need for drilling. At the same time, the insulating bushing 3 is used to achieve electromagnetic isolation of the encoder, thereby effectively improving anti-interference performance and ensuring equipment life and signal accuracy.

[0063] Example 2

[0064] This utility model embodiment also provides a regulator, see [link to relevant documentation] Figure 6 , Figure 7 The PCB board 7 includes an encoder as described in Embodiment 1 above. The PCB board 7 has fixing holes 71 on both sides and a welding hole 72 at the front end. The encoder is embedded from the back of the PCB board 7. The second mounting buckle 43 on the encoder is embedded in the fixing hole 71 and its pins are embedded in the welding hole 72 for welding and fixing.

[0065] The PCB board 7 also has a connector 73 soldered on it for electrical connection with external devices.

[0066] The edge of the PCB board 7 is also provided with through mounting holes 74 that penetrate the board surface, which are used to install and fix the adjuster and the equipment by means of bolts.

[0067] This embodiment of the utility model utilizes the second mounting buckle 43 on the bracket 4 to achieve back-clamping installation of the encoder, controlling the encoder to be embedded and installed from the back of the PCB board 7, with the pins soldered onto the PCB board 7 for fixation, effectively saving equipment installation space 33, improving customer production efficiency, and saving costs.

[0068] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. An encoder, characterized in that: Includes a shaft, base body, insulating bushing, and bracket; The base body is installed at the bottom of the shaft, and the insulating bushing is sleeved on the shaft. The base body and the insulating bushing are fitted together to form an installation cavity for installing the shaft. The bracket covers the outside of the base body and is assembled with the insulating bushing to press the insulating bushing tightly connected to the base body.

2. The encoder as described in claim 1, characterized in that: The top surface of the side wall of the base body is provided with a waterproof platform that fits into the insulating bushing, and one end is provided with an outwardly extending connecting terminal, which extends in the same direction as the shaft. The waterproof platform is an upward-protruding annular limiting structure with arc-shaped corners; The waterproof platform includes an inner vertical surface and an outer fitting slope; the fitting slope is inclined toward the inner cavity of the base body and abuts tightly against the insulating bushing.

3. An encoder as described in claim 2, characterized in that: The edge of the insulating bushing is recessed inward to form a waterproof groove that fits into the waterproof platform; The waterproof groove is an annular groove, and its sidewall slopes outward from the bottom of the groove until it connects to the top surface of the edge of the insulating bushing, and abuts tightly against the fitting slope of the insulating bushing. The insulating bushing is formed from insulating material.

4. An encoder as described in claim 1, characterized in that: It also includes a positioning plate and a sealing ring; the positioning plate has a through mounting hole, which is nested on the inner side wall of the insulating bushing and movably connected to the shaft; the sealing ring is sleeved on the rotating shaft of the shaft, with its bottom abutting against the rotating shaft and its top abutting against the insulating bushing to perform a sealing assembly.

5. An encoder as described in claim 4, characterized in that: The insulating bushing has a through hole in the middle to avoid the shaft center, and a mounting position is provided on the outside of the through hole; the mounting position is recessed inward to place the positioning piece, and a protruding positioning post is provided in the middle of the mounting position; the positioning post cooperates with the positioning hole on the positioning piece.

6. An encoder as described in claim 1, characterized in that: The bracket includes a base plate, and the two sides of the base plate are bent upward to form side plates to fit the base body; The side plate is provided with a first mounting buckle at both ends and a second mounting buckle in the middle. After the first mounting buckle is embedded in the insulating bushing, it is bent and pressed to tightly connect the insulating bushing to the base body. The second mounting buckle bends horizontally outward in the middle and extends vertically upward at the top.

7. An encoder as described in claim 6, characterized in that: The outer side walls of both sides of the insulating bushing are provided with mounting buckles, which are vertical openings that fit with the second mounting buckle vertically; the front of the insulating bushing is provided with a bending groove corresponding to the mounting buckle, which is recessed downward and fits into the upper part of the bent second mounting buckle.

8. An encoder as described in claim 6, characterized in that: The base body has an outwardly protruding positioning block in the middle of its back side and positioning strips around its perimeter; the bracket has a positioning hole in the middle of its base plate that corresponds to the positioning block, the positioning hole penetrating the plate surface, and the bracket is nested on the base body through the positioning block and positioning strips.

9. A regulator, characterized in that: The PCB board includes an encoder as described in any one of claims 1 to 8, wherein the PCB board has fixing holes on both sides and a soldering hole at the front end; the encoder is embedded from the back of the PCB board, and a second mounting buckle on the encoder is embedded in the fixing hole and the pins are embedded in the soldering hole.

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