Electrically integrated slip ring

Abstract

The utility model discloses electrical integration slip ring, including first structural member, second structural member and wireless signal transceiver module, the top of first structural member is equipped with installation cavity, is equipped with first air channel on first structural member, second structural member can rotate and install on first structural member, second structural member has hollow shaft, and hollow shaft inserts in installation cavity, is equipped with second air channel on second structural member, and the annular air chamber that is equipped with between hollow shaft and first structural member, annular air chamber links second air channel and first air channel respectively, wireless signal transceiver module includes two wireless signal transmission module for signal transmission, and one wireless signal transmission module is located the bottom of installation cavity, and another wireless signal transmission module is located the bottom of hollow shaft, first structural member and second structural member one of both is stator, and the other is rotor. This electrical integration slip ring whole machine miniaturization, eradicates the grinding dust, contact resistance drift and high frequency noise, makes electrical passage obtain zero wear, maintenance -free.

Description

Technical Field

[0001] This utility model relates to the field of slip ring technology, and in particular to an electro-integrated slip ring. Background Technology

[0002] In automated rotating equipment, traditional pneumatic-electric slip rings typically employ a parallel structure of "mechanical seal + brush and conductive ring": the gas channel forms a continuous gas path through radial or end-face seals between the stator and rotor; the electrical channel transmits signals via sliding contact pairs such as brush-copper ring or carbon brush-silver ring. Due to the different physical principles of the gas and electrical channels, they can only be arranged axially or radially in engineering, resulting in a linear increase in the overall length of the slip ring with the number of channels, creating a significant contradiction with space-constrained scenarios such as robotic arms and turret cranes. More seriously, the metal-to-metal sliding pair of the brush / conductive ring inevitably generates wear debris during long-term rotation, gradually increasing contact resistance and leading to signal drift and high-frequency noise. To suppress wear, designers typically use precious metal plating and increase contact pressure, but this accelerates the mechanical wear of the brush filaments and ring surface, shortening maintenance cycles and increasing downtime costs. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a maintenance-free, small, electromechanical integrated slip ring.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an electrically integrated slip ring, comprising:

[0005] The first structural component has a mounting cavity on its top surface and a first air passage on its surface.

[0006] The second structural component is rotatably mounted on the first structural component. The second structural component has a hollow shaft inserted into the mounting cavity. The second structural component is provided with a second air passage. An annular air cavity is provided between the hollow shaft and the first structural component. The annular air cavity is connected to the second air passage and the first air passage respectively.

[0007] A wireless signal transceiver module, comprising two wireless signal transmission modules for signal transmission, one of which is located at the bottom of the mounting cavity, and the other of which is located at the bottom of the hollow shaft.

[0008] Of the first and second structural components, one is the stator and the other is the rotor.

[0009] In one embodiment, the wireless signal transmission module is an AIP chip, which integrates an antenna and a control chip.

[0010] In one embodiment, the AIP chip is a millimeter-wave transceiver chip.

[0011] In one embodiment, the wireless signal transmission module includes an electrically connected control chip and an onboard antenna.

[0012] In one embodiment, the control chip of the wireless signal transmission module on the hollow shaft is mounted on the inner bottom surface of the hollow shaft, and the onboard antenna is mounted on the outer bottom surface of the hollow shaft; the control chip of the wireless signal transmission module on the first structural member is mounted on the outer bottom surface of the mounting cavity, and the onboard antenna is mounted on the inner bottom surface of the mounting cavity.

[0013] In one embodiment, the system further includes a wireless power supply module, which includes two wireless power supply coils for wireless power transmission. One wireless power supply coil is located at the bottom of the mounting cavity, and the other wireless power supply coil is located at the bottom of the hollow shaft.

[0014] In one embodiment, the wireless signal transmission module is located in the hollow area of ​​the wireless power supply coil.

[0015] In one embodiment, a plurality of sealing rings are fitted on the hollow shaft, and at least one set of two adjacent sealing rings are provided with an annular air cavity.

[0016] In one embodiment, a first bearing is further included, which is disposed in the mounting cavity and contacts the hollow shaft and the first structural member respectively.

[0017] In one embodiment, the second structural member further includes a head connected to the hollow shaft, the head being located outside the mounting cavity, the second air passage communicating with the outer surface of the head, and also includes a second bearing disposed between the head and the first structural member.

[0018] The beneficial effects of this utility model are as follows: This integrated electromechanical slip ring completely replaces the brush holder, conductive ring, and the required axial stacking space by directly placing the wireless signal transmission module at the bottom of the mounting cavity of the first structural component and the end face of the hollow shaft of the second structural component. This prevents the slip ring length from increasing linearly with the number of channels, thus achieving overall miniaturization. Simultaneously, wireless communication eliminates metal-to-metal sliding pairs, eradicating wear debris, contact resistance drift, and high-frequency noise, resulting in zero-wear and maintenance-free operation of the electrical channels. Gas and signal do not interfere with each other; during assembly, only one insertion and tightening of the bearing is required to complete the synchronous connection of the gas path and communication. The maintenance cycle is shortened from periodic brush replacement to only checking the sealing ring, significantly reducing downtime costs. Ultimately, the slip ring performance is simultaneously improved in terms of miniaturization, maintenance-free operation, and high reliability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 structures shown in these drawings without creative effort.

[0020] Figure 1 This is a simplified schematic diagram of the electrically integrated slip ring according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a simplified schematic diagram of the electrically integrated slip ring according to Embodiment 2 of this utility model;

[0022] Figure 3 This is a simplified schematic diagram of the electro-integrated slip ring according to Embodiment 3 of this utility model;

[0023] Figure 4 This is a simplified schematic diagram of the electro-integrated slip ring of Embodiment 4 of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. First structural component; 11. Mounting cavity; 12. First air passage; 13. Annular air chamber;

[0026] 2. Second structural component; 21. Hollow shaft; 22. Second air passage; 23. Head;

[0027] 3. Wireless signal transmission module; 31. AIP chip; 32. Control chip; 33. Onboard antenna;

[0028] 4. Sealing ring;

[0029] 51. First bearing; 52. Second bearing;

[0030] 6. Wireless power supply coil. Detailed Implementation

[0031] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0035] Furthermore, if the meaning of "and / or" in the entire text is to include three parallel solutions, taking "and A / or B" as an example, it includes solution A, solution B, and a solution that simultaneously satisfies both A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Example 1

[0038] Please refer to Figure 1One embodiment of this utility model is an electrically integrated slip ring, comprising a first structural component 1, a second structural component 2, and a wireless signal transceiver module. One of the first structural component 1 and the second structural component 2 is a stator, and the other is a rotor. The top surface of the first structural component 1 is provided with a mounting cavity 11, and a first air passage 12 is provided on the first structural component 1. The second structural component 2 is rotatably mounted on the first structural component 1. The second structural component 2 has a hollow shaft 21, which is inserted into the mounting cavity 11. The second structural component 2 has a second air passage 22, and an annular air cavity 13 is provided between the hollow shaft 21 and the first structural component 1. The annular air cavity 13 connects the second air passage 22 and the first air passage 12 respectively. The wireless signal transceiver module includes two wireless signal transmission modules 3 for wireless signal transmission. One wireless signal transmission module 3 is located at the bottom of the mounting cavity 11, and the other wireless signal transmission module 3 is located at the bottom of the hollow shaft 21.

[0039] In this embodiment, the annular air cavity 13 is disposed on the first structural member 1. In other embodiments, the annular air cavity 13 is disposed on the hollow shaft 21, or a portion of the annular air cavity 13 is disposed on the inner wall of the mounting cavity 11 and another portion is disposed on the outer wall of the hollow shaft 21.

[0040] In this embodiment, the wireless signal transmission module 3 is an AIP chip 31, which integrates an antenna and a control chip 32. The antenna and control chip 32 are integrated into the same package, significantly reducing the axial and radial space occupied by the device, compressing the overall thickness of the electrically integrated slip ring, reducing package parasitic and trace losses, and improving signal integrity.

[0041] Optionally, the AIP chip 31 is a millimeter-wave transceiver chip. Using a millimeter-wave transceiver chip enables high-bandwidth communication within a very small area. Furthermore, the shorter wavelength and smaller antenna size facilitate further reduction in module size while maintaining directional radiation, avoiding signal attenuation caused by angle changes during rotation, and providing strong anti-interference capabilities and high information transmission rates.

[0042] Multiple sealing rings 4 are fitted onto the hollow shaft 21, and at least one set of two adjacent sealing rings 4 are provided with an annular air cavity 13. By fitting multiple sealing rings 4 onto the hollow shaft 21 and placing the annular air cavity 13 between adjacent sealing rings 4, multiple independent gas channels can be formed on the same shaft segment, and the channels do not interfere with each other.

[0043] The electro-integrated slip ring also includes a first bearing 51, which is disposed in the mounting cavity 11 and contacts the hollow shaft 21 and the first structural member 1 respectively. The first bearing 51 is placed in the mounting cavity 11 and simultaneously supports the hollow shaft 21 and the first structural member 1, ensuring that the relative end face clearance between the first structural member 1 and the hollow shaft 21 is constant, thereby maintaining stable airtightness and radio frequency performance.

[0044] The second structural component 2 also includes a head 23 connected to the hollow shaft 21. The head 23 is located outside the mounting cavity 11, and the second air passage 22 communicates with the outer surface of the head 23. In this embodiment, the electro-integrated slip ring also includes a second bearing 52, which is disposed between the head 23 and the first structural component 1. After the head 23 of the second structural component 2 is exposed outside the mounting cavity 11 and the second bearing 52 is added, a double bearing span support structure is formed, which can significantly reduce the overturning moment caused by the load on the head 23, avoid cantilever deformation of the hollow shaft 21, ensure uniform gap between the annular air cavity 13 and the wireless module, and improve operating accuracy and reliability.

[0045] When the first structural component 1 is the stator and the second structural component 2 is the rotor, the first air passage 12 is the air inlet passage with multiple air inlets, and the second air passage 22 is the air outlet passage with an air outlet. At the application end (such as a turret machine), the air outlet of the second air passage 22 can blow the chip to be processed to a designated position. When the first structural component 1 is the rotor and the second structural component 2 is the stator, the first air passage 12 is the air outlet passage with multiple air outlets, and the second air passage 22 is the air inlet passage with an air inlet. At the application end (such as a turret machine), the air inlet of the second air passage 22 can pick up the chip to be processed.

[0046] Example 2

[0047] Please refer to Figure 2 Embodiment 2 of this utility model is a further improvement based on Embodiment 1, and the difference between it and Embodiment 1 is that:

[0048] The electro-integrated slip ring also includes a wireless power supply module, which comprises two wireless power supply coils 6 for wireless power transmission. One wireless power supply coil 6 is located at the bottom of the mounting cavity 11, and the other wireless power supply coil 6 is located at the bottom of the hollow shaft 21. With the addition of the wireless power supply module, power also passes through the rotating interface in a non-contact manner, completely eliminating any conductive contacts on the slip ring, reducing maintenance requirements to the level of only inspecting the sealing ring, and achieving completely maintenance-free operation.

[0049] Optionally, the wireless signal transmission module 3 is located in the hollow area of ​​the wireless power supply coil 6. Placing the wireless signal transmission module 3 in the hollow area of ​​the wireless power supply coil 6 allows for coaxial arrangement of power supply and communication, making full use of the unused space in the center of the coil, avoiding competition for position between the two in the radial or axial direction, and further reducing the diameter and thickness of the slip ring.

[0050] Example 3

[0051] Please refer to Figure 3 Embodiment 3 of this utility model is a parallel technical solution to Embodiment 1, but differs from Embodiment 1 in that: in this embodiment, the wireless signal transmission module 3 is not an AIP chip. Specifically, the wireless signal transmission module 3 includes a control chip 32 and an onboard antenna 33 that are electrically connected. When the wireless signal transmission module 3 adopts a design where the control chip 32 and the onboard antenna 33 are separate, the antenna size and position can be flexibly adjusted according to the spatial layout, taking into account both gain and assembly compatibility; the control chip 32 being far from the antenna also facilitates heat dissipation and improves the reliability of long-term operation.

[0052] In one or more embodiments, the control chip 32 of the wireless signal transmission module 3 on the hollow shaft 21 is mounted on the inner bottom surface of the hollow shaft 21, and the onboard antenna 33 is mounted on the outer bottom surface of the hollow shaft 21; the control chip 32 of the wireless signal transmission module 3 on the first structural member 1 is mounted on the outer bottom surface of the mounting cavity 11, and the onboard antenna 33 is mounted on the inner bottom surface of the mounting cavity 11. The connection between the control chip 32 and the onboard antenna 33 is established. The sandwich arrangement of the onboard antenna 33 and control chip 32 minimizes the antenna spacing and the RF path, significantly reducing space loss and improving coupling efficiency. At the same time, the chip is located on the outside, which can utilize the heat insulation and shielding effect of the thin wall to reduce mutual thermal influence and electromagnetic interference, ensuring stable and reliable signal during rotation.

[0053] Example 4

[0054] Please refer to Figure 4 Embodiment four of this utility model is a further improvement based on embodiment three, and the difference between it and embodiment three is that:

[0055] The electro-integrated slip ring also includes a wireless power supply module, which comprises two wireless power supply coils 6 for wireless power transmission. One wireless power supply coil 6 is located at the bottom of the mounting cavity 11, and the other wireless power supply coil 6 is located at the bottom of the hollow shaft 21. With the addition of the wireless power supply module, power also passes through the rotating interface in a non-contact manner, completely eliminating any conductive contacts on the slip ring, reducing maintenance requirements to the level of only inspecting the sealing ring, and achieving completely maintenance-free operation.

[0056] Optionally, the wireless signal transmission module 3 is located in the hollow area of ​​the wireless power supply coil 6. Placing the wireless signal transmission module 3 in the hollow area of ​​the wireless power supply coil 6 allows for coaxial arrangement of power supply and communication, making full use of the unused space in the center of the coil, avoiding competition for position between the two in the radial or axial direction, and further reducing the diameter and thickness of the slip ring.

[0057] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An electro-integrated slip ring, characterized in that: include The first structural component has a mounting cavity on its top surface and a first air passage on its surface. The second structural component is rotatably mounted on the first structural component. The second structural component has a hollow shaft inserted into the mounting cavity. The second structural component is provided with a second air passage. An annular air cavity is provided between the hollow shaft and the first structural component. The annular air cavity is connected to the second air passage and the first air passage respectively. A wireless signal transceiver module, comprising two wireless signal transmission modules for signal transmission, one of which is located at the bottom of the mounting cavity, and the other of which is located at the bottom of the hollow shaft. Of the first and second structural components, one is the stator and the other is the rotor.

2. The electro-integrated slip ring according to claim 1, characterized in that: The wireless signal transmission module is an AIP chip, which integrates an antenna and a control chip.

3. The electro-integrated slip ring according to claim 2, characterized in that: The AIP chip is a millimeter-wave transceiver chip.

4. The electro-integrated slip ring according to claim 1, characterized in that: The wireless signal transmission module includes an electrically connected control chip and an onboard antenna.

5. The electro-integrated slip ring according to claim 4, characterized in that: The control chip of the wireless signal transmission module on the hollow shaft is installed on the inner bottom surface of the hollow shaft, and the onboard antenna is installed on the outer bottom surface of the hollow shaft; the control chip of the wireless signal transmission module on the first structural component is installed on the outer bottom surface of the mounting cavity, and the onboard antenna is installed on the inner bottom surface of the mounting cavity.

6. The electro-integrated slip ring according to claim 1, characterized in that: It also includes a wireless power supply module, which includes two wireless power supply coils for wireless power transmission. One wireless power supply coil is located at the bottom of the mounting cavity, and the other wireless power supply coil is located at the bottom of the hollow shaft.

7. The electro-integrated slip ring according to claim 6, characterized in that: The wireless signal transmission module is located in the hollow area of ​​the wireless power supply coil.

8. The electro-integrated slip ring according to claim 1, characterized in that: The hollow shaft is fitted with multiple sealing rings, and at least one set of two adjacent sealing rings are provided with an annular air cavity.

9. The electro-integrated slip ring according to claim 1, characterized in that: It also includes a first bearing, which is disposed in the mounting cavity and contacts the hollow shaft and the first structural member respectively.

10. The electro-integrated slip ring according to claim 1, characterized in that: The second structural component also includes a head connected to the hollow shaft, the head being located outside the mounting cavity, the second air passage communicating with the outer surface of the head, and a second bearing disposed between the head and the first structural component.

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