Coding plate device and motor

Abstract

The invention provides a coding plate device and a motor. The coding plate device comprises an insulating structure, the insulating structure is provided with a first accommodating cavity and a second accommodating cavity which are arranged at an interval, and at least the part, forming the first accommodating cavity, of the insulating structure is made of an insulating material; a connecting plate; the supporting plate assembly, the connecting plate and the supporting plate assembly are arranged on the insulating structure, an insulating gap is formed between the connecting plate and the supporting plate assembly, the connecting plate covers at least one part of the first containing cavity, and the supporting plate assembly covers at least one part of the second containing cavity; and at least one part of the conductive column assembly is arranged in the first accommodating cavity. The motor coding plate solves the problem of poor use performance of the motor coding plate in the prior art.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and more specifically, to an encoder board device and a motor. Background Technology

[0002] In existing technology, high-voltage motors use magnetic braiding plates for position / speed detection, compatible with the motor's high-voltage three-phase lines. The magnetic braiding plate is a circular cover plate on which a PCB board, high-voltage connectors, low-voltage cable terminals, and the motor's three-phase high-voltage copper pillars are arranged. Furthermore, the lead-side end caps are threaded to the magnetic braiding plate. During use, the motor's magnetic braiding plate relies on changes in the magnetic field to detect position. Because the current magnetic braiding plate is arranged as a single unit, with strong and weak currents not separated, signal distortion or deviation is easily caused, reducing detection accuracy. Moreover, the high voltage can easily damage the PCB board, increasing PCB manufacturing costs. On the other hand, because the high-voltage copper pillars support the magnetic braiding plate, the support area is small and concentrated, making the magnetic braiding plate susceptible to damage under external load impacts.

[0003] Therefore, existing technologies suffer from poor performance of motor encoder boards. Summary of the Invention

[0004] The main objective of this invention is to provide an encoder board device and a motor to solve the problem of poor performance of motor encoder boards in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, an encoding plate device is provided, comprising: an insulating structure having a first receiving cavity and a second receiving cavity spaced apart, wherein at least a portion of the insulating structure constituting the first receiving cavity is made of an insulating material; a connecting plate; a support plate assembly, wherein the connecting plate and the support plate assembly are respectively disposed on the insulating structure, an insulating gap is formed between the connecting plate and the support plate assembly, and the connecting plate covers at least a portion of the first receiving cavity, and the support plate assembly covers at least a portion of the second receiving cavity; and a conductive post assembly, wherein at least a portion of the conductive post assembly is disposed within the first receiving cavity.

[0006] Furthermore, the insulation structure includes: an insulation bracket that forms a first receiving cavity and is made of an insulating material; and a lead-side end cap that has a second receiving cavity and is engaged with the insulation bracket.

[0007] Furthermore, the lead-side end cap includes: a base plate; a flange structure, the flange structure being disposed around the periphery of the base plate and extending along the thickness direction of the base plate to form a second receiving cavity with the base plate, and the flange structure being snapped into the insulating support.

[0008] Furthermore, the base plate and flange structure are integrally molded.

[0009] Furthermore, the insulating bracket is provided with a snap-fit ​​groove corresponding to the flange structure, and the flange structure has a snap-fit ​​protrusion that mates with the snap-fit ​​groove. The insulating bracket and the flange structure are snapped together by the snap-fit ​​groove and the snap-fit ​​protrusion.

[0010] Furthermore, the connecting plate is provided with a first mounting hole corresponding to the snap-fit ​​protrusion, and the connecting plate is connected to the snap-fit ​​protrusion through the first mounting hole.

[0011] Furthermore, the flange structure is provided with multiple second mounting holes corresponding to the support plate assembly, and the support plate assembly is connected to the flange structure through the second mounting holes.

[0012] Furthermore, the support plate assembly includes: a support plate body, which covers the insulating structure and covers the second receiving cavity; a sensor, which is disposed on the support plate body; and a transmission plate, which is disposed on the side of the support plate body away from the second receiving cavity, and the sensor is signal-connected to the transmission plate.

[0013] Furthermore, the connecting plate is provided with at least one mating hole corresponding to the conductive post assembly, and one end of the conductive post assembly extends into the mating hole.

[0014] According to another aspect of the present invention, an electric motor is provided, including the above-described encoder plate device.

[0015] Applying the technical solution of this invention, the coding board device in this application includes an insulating structure, a connecting plate, a support plate assembly, and a conductive post assembly. The insulating structure has a first receiving cavity and a second receiving cavity spaced apart, and at least the portion of the insulating structure forming the first receiving cavity is made of insulating material; the connecting plate and the support plate assembly are respectively disposed on the insulating structure, with an insulating gap between the connecting plate and the support plate assembly, and the connecting plate covers at least a portion of the first receiving cavity, and the support plate assembly covers at least a portion of the second receiving cavity; at least a portion of the conductive post assembly is disposed within the first receiving cavity.

[0016] When using the encoder board device of this application, the encoder board device achieves separation of strong and weak currents by separately setting the connecting plate and support plate assemblies in different areas of the insulating structure, thereby improving the safety and stability of the circuit. In principle, the first and second receiving cavities formed by insulating materials ensure effective isolation between high-voltage and low-voltage electrical areas, reducing electromagnetic interference. In terms of effect, the technology in this embodiment effectively avoids accidental short circuits, reduces the risk of signal distortion, simplifies the troubleshooting process, and improves the overall performance of the equipment. Therefore, the encoder board device of this application effectively solves the problem of poor performance of motor encoder boards in the prior art. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of an encoding board device according to a specific embodiment of the present invention is shown;

[0019] Figure 2 It shows Figure 1 A schematic diagram of the insulation structure of the encoder board device.

[0020] The above figures include the following reference numerals:

[0021] 10. Insulating structure; 11. First receiving cavity; 12. Second receiving cavity; 13. Insulating bracket; 131. Snap-fit ​​groove; 14. Lead wire side end cap; 141. Base plate; 142. Flange structure; 1421. Snap-fit ​​protrusion; 1422. First mounting hole; 1423. Second mounting hole; 20. Connecting plate; 21. Mating hole; 30. Support plate assembly; 31. Support plate body; 32. Transmission plate; 40. Conductive post assembly; 50. Housing. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0025] To address the issue of poor performance of existing motor encoders, this application provides an encoder device and a motor.

[0026] Furthermore, the motor in this application has a housing 50, and the encoder plate device described below is disposed inside the housing 50.

[0027] like Figure 1 and Figure 2As shown, the coding board device in this application includes an insulating structure 10, a connecting plate 20, a support plate assembly 30, and a conductive post assembly 40. The insulating structure 10 has a first receiving cavity 11 and a second receiving cavity 12 spaced apart, and at least the portion of the insulating structure 10 forming the first receiving cavity 11 is made of insulating material; the connecting plate 20 and the support plate assembly 30 are respectively disposed on the insulating structure 10, with an insulating gap between the connecting plate 20 and the support plate assembly 30, and the connecting plate 20 covers at least a portion of the first receiving cavity 11, and the support plate assembly 30 covers at least a portion of the second receiving cavity 12; at least a portion of the conductive post assembly 40 is disposed within the first receiving cavity 11.

[0028] When using the encoder board device of this application, the encoder board device achieves separation of strong and weak currents by separately setting the connecting plate 20 and the support plate assembly 30 in different areas of the insulating structure 10, thereby improving the safety and stability of the circuit. In principle, the first and second receiving cavities 12 formed by insulating material ensure effective isolation between high-voltage and low-voltage electrical areas, reducing electromagnetic interference. In terms of effect, the technology in this embodiment effectively avoids accidental short circuits, reduces the risk of signal distortion, simplifies the troubleshooting process, and improves the overall performance of the equipment. Therefore, the encoder board device of this application effectively solves the problem of poor performance of motor encoder boards in the prior art.

[0029] In other embodiments, the insulation performance of the high-voltage connection plate 20 can be further enhanced by optimizing the performance of the insulating material and the structural design to meet more stringent electrical safety standards.

[0030] It should be noted that in this application, the voltage range of high voltage is generally 400 to 900V, and the voltage range of low voltage is generally 5 to 12V.

[0031] Specifically, the insulating structure 10 includes an insulating bracket 13 and a lead-side end cap 14. The insulating bracket 13 forms a first receiving cavity 11 and is made of insulating material. The lead-side end cap 14 has a second receiving cavity 12, and the insulating bracket 13 is snapped into the lead-side end cap 14. In this application, the snap-fit ​​connection between the insulating bracket 13 and the lead-side end cap 14 not only simplifies the assembly process but also ensures the stability of the connection. In principle, this connection method utilizes the self-locking characteristic of the snap-fit ​​structure, maintaining good electrical isolation even under vibration. In terms of effectiveness, the use of the snap-fit ​​structure significantly improves assembly efficiency and enhances the stability of the high-voltage connection plate 20, preventing damage caused by vibration. In other embodiments, threaded connections or other forms of mechanical connections can also be used to adapt to different application scenarios and requirements.

[0032] Specifically, the lead-side end cap 14 includes a base plate 141 and a flange structure 142. The flange structure 142 is arranged around the periphery of the base plate 141 and extends along the thickness direction of the base plate 141, forming a second receiving cavity 12 with the base plate 141. The flange structure 142 is engaged with the insulating support 13. In this application, the design of the flange structure 142 increases the contact area between the lead-side end cap 14 and the insulating support 13, improving the reliability of the connection. In principle, the flange structure 142 and the base plate 141 together form the second receiving cavity 12, providing sufficient space for the low-voltage area and facilitating the installation and maintenance of the sensor. In terms of effectiveness, the technical solution in this embodiment effectively improves the assembly accuracy and working efficiency of the high-voltage motor, while ensuring the safe operation of electrical components. In other embodiments, the size of the second receiving cavity 12 can be adjusted by changing the shape or size of the flange structure 142 to accommodate sensors or transmission boards 32 of different specifications.

[0033] Furthermore, in this application, a through hole communicating with the second receiving cavity 12 can be provided on the base plate 141 to ensure that other structures inside the motor can extend into the second receiving cavity 12 through the through hole.

[0034] In one specific embodiment of this application, the base plate 141 and the flange structure 142 are integrally molded. Technically, the integrally molded base plate 141 and flange structure 142 simplify the manufacturing process and reduce production costs. In principle, integral molding ensures the integrity and strength of the structure, reducing potential failure points caused by welding or bonding. In terms of effect, the technical solution in this embodiment makes the lead-side end cap 14 more robust and durable, improving the reliability and service life of the high-voltage motor. In other embodiments, by selecting different materials or optimizing the molding process, the high-temperature resistance and corrosion resistance of the integrally molded structure can be further improved to adapt to harsh working environments.

[0035] Furthermore, in this application, the flange structure 142 and the insulating bracket 13 are respectively provided on the inner side wall of the motor housing.

[0036] Optionally, the insulating bracket 13 is provided with a snap-fit ​​groove 131 corresponding to the flange structure 142, and the flange structure 142 has a snap-fit ​​protrusion 1421 that mates with the snap-fit ​​groove 131. The insulating bracket 13 and the flange structure 142 are snapped together by the snap-fit ​​groove 131 and the snap-fit ​​protrusion 1421. In this application, the mating design of the snap-fit ​​groove 131 and the snap-fit ​​protrusion 1421 ensures precise alignment between the insulating bracket 13 and the lead-side end cap 14, enhancing the stability of the structure. In terms of effectiveness, the technical solution in this embodiment effectively avoids electrical connection problems caused by improper assembly, improving the overall performance and reliability of the high-voltage motor. In other embodiments, the tightness and strength of the snap-fit ​​can be improved by increasing the number of snap-fit ​​grooves 131 or changing their shape to cope with higher loads or more complex assembly requirements.

[0037] Optionally, the snap-fit ​​protrusion 1421 is provided with a first mounting hole 1422 corresponding to the connecting plate 20, and the connecting plate 20 is connected to the snap-fit ​​protrusion 1421 through the first mounting hole 1422. Technically, the design of the first mounting hole 1422 allows for direct fixing between the connecting plate 20 and the snap-fit ​​protrusion 1421, simplifying the assembly steps and improving assembly efficiency. In principle, by passing screws or other fasteners through the first mounting hole 1422, the connecting plate 20 is firmly fixed to the snap-fit ​​protrusion 1421, ensuring the stability and safety of the high-voltage connection. In terms of effect, the technical solution in this embodiment makes the positioning of the connecting plate 20 more accurate, reduces the risk of loosening caused by vibration, and improves the long-term operational stability of the high-voltage motor. In other embodiments, the stress distribution of the connecting plate 20 can be improved by optimizing the position and size of the first mounting hole 1422, reducing stress concentration and extending the service life of the connecting plate 20. That is to say, the connecting plate 20 can be connected to the snap-fit ​​protrusion 1421 by screws engaging with the threads of the first mounting hole 1422.

[0038] Optionally, the flange structure 142 is provided with multiple second mounting holes 1423 corresponding to the support plate assembly 30, and the support plate assembly 30 is connected to the flange structure 142 through the second mounting holes 1423. Technically, the design of multiple second mounting holes 1423 provides multiple fixing points for the support plate assembly 30, enhancing its stability in the high-voltage motor. In principle, by fastening fasteners through the second mounting holes 1423, the support plate assembly 30 is firmly connected to the flange structure 142, ensuring the precise alignment of the position sensor and the transmission plate 32. In terms of effect, the technical solution in this embodiment improves the vibration resistance of the support plate assembly 30, reduces signal detection errors, and improves the control accuracy of the high-voltage motor. In other embodiments, the support effect of the support plate assembly 30 can be optimized by adjusting the layout of the second mounting holes 1423, and different fasteners can also be used to adapt to different assembly requirements and environmental conditions. That is, the support plate assembly 30 can be connected to the flange structure 142 by screws engaging with the threads of the second mounting holes 1423.

[0039] Specifically, the support plate assembly 30 includes: a support plate body 31, which covers the insulating structure 10 and the second receiving cavity 12; a sensor disposed on the support plate body 31; and a transmission plate 32 disposed on the side of the support plate body 31 away from the second receiving cavity 12, with the sensor and transmission plate 32 connected by a signal. Technically, the support plate assembly 30 integrates the sensor and the transmission plate 32, achieving efficient signal transmission and processing. In principle, the sensor detects the position and speed information of the motor, and the transmission plate 32 converts this information into electrical signals and sends them to the control system; the two interact through a signal connection. In terms of effectiveness, the technical solution in this embodiment improves the real-time performance and accuracy of signal transmission, enhancing the intelligence level of the high-voltage motor. In other embodiments, the performance of signal detection and transmission can be further improved by employing higher-precision sensors or more advanced transmission technologies to meet more complex application scenarios.

[0040] Specifically, the connecting plate 20 is provided with at least one mating hole 21 corresponding to the conductive post assembly 40, and one end of the conductive post assembly 40 extends into the mating hole 21. Furthermore, in this application, the conductive post assembly 40 can be composed of multiple high-voltage copper posts. In this case, the connecting plate 20 can be provided with different mating holes 21 corresponding to different high-voltage copper posts. Through the mating of the high-voltage copper post and the corresponding mating hole 21, the high-voltage copper post extends into the mating hole 21 and acts as a positioning pin, thereby providing rapid positioning and guidance for the installation of the connecting plate 20, reducing assembly time, improving assembly quality, and increasing production efficiency.

[0041] Therefore, in this application, the multiple high-voltage copper pillars of the insulating bracket 13 and the conductive pillar assembly 40 can simultaneously support the connecting plate 20. This arrangement ensures electrical isolation between the connecting plate 20 and the mounting metal surface of the motor, or in other words, electrical isolation between the connecting plate 20 and the end cover of the motor, preventing short circuits and leakage. Secondly, it provides anti-static interference, preventing external static electricity from being transferred to the position sensor. Thirdly, it provides support, increasing the contact area and reducing the impact of impact vibration on the connecting plate 20 and its associated connectors.

[0042] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0043] 1. Effectively solves the problem of poor performance of motor encoder boards in existing technologies;

[0044] 2. Simple structure and stable performance.

[0045] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An encoding plate apparatus, characterized by, The application relates to an insulation structure (10) having a first accommodating cavity (11) and a second accommodating cavity (12) arranged at intervals, wherein at least a part of the first accommodating cavity (11) is made of insulation material; a connecting plate (20); a support plate assembly (30) arranged on the insulation structure (10) respectively, wherein the connecting plate (20) and the support plate assembly (30) have an insulation gap therebetween, the connecting plate (20) covers at least a part of the first accommodating cavity (11), and the support plate assembly (30) covers at least a part of the second accommodating cavity (12); and a conductive column assembly (40) arranged at least partially in the first accommodating cavity (11). The insulation structure (10) comprises: an insulation support (13) surrounding the first accommodating cavity (11) and made of insulation material; and a lead side end cover (14) having the second accommodating cavity (12) and being clamped with the insulation support (13). The lead side end cover (14) comprises: a bottom plate (141); and a flange structure (142) arranged around the periphery of the bottom plate (141) and extending along the thickness direction of the bottom plate (141) and surrounding the second accommodating cavity (12) with the bottom plate (141) and being clamped with the insulation support (13). The bottom plate (141) and the flange structure (142) are integrally formed. The insulation support (13) is provided with a clamping groove (131) corresponding to the flange structure (142), the flange structure (142) has a clamping protrusion (1421) matched with the clamping groove (131), and the insulation support (13) and the flange structure (142) are clamped through the clamping groove (131) and the clamping protrusion (1421).

2. The encoding board apparatus of claim 1, wherein, The clamping protrusion (1421) is provided with a first mounting hole (1422) corresponding to the connecting plate (20), and the connecting plate (20) is connected with the clamping protrusion (1421) through the first mounting hole (1422). The flange structure (142) is provided with a plurality of second mounting holes (1423) corresponding to the support plate assembly (30), and the support plate assembly (30) is connected with the flange structure (142) through the second mounting holes (1423). The support plate assembly (30) comprises: a support plate body (31) covering the second accommodating cavity (12); and a sensor arranged on the support plate body (31).

3. The encoding board apparatus of claim 2, wherein, ​ ​ ​ 4. The encoding board apparatus of claim 3, wherein, ​ 5. The encoding board apparatus of claim 3, wherein, ​ 6. The encoding board apparatus of claim 5, wherein, ​ 7. The encoding board apparatus of claim 3, wherein, ​ 8. The encoding board apparatus according to any one of claims 1 to 7, characterized by, ​ ​ ​ A transmission plate (32) is arranged on the side of the support plate body (31) away from the second accommodating cavity (12), and the sensor is in signal connection with the transmission plate (32).

9. The encoding board apparatus of any one of claims 1 to 7, wherein, The connecting plate (20) is provided with at least one matching hole (21) corresponding to the conductive column assembly (40), and one end of the conductive column assembly (40) extends into the matching hole (21).

10. An electric machine characterized by The encoding plate device of any one of claims 1 to 9.

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