CN117498578A - Non-contact rotary power supply slip ring device, compensation network circuit and power supply equipment - Google Patents
Non-contact rotary power supply slip ring device, compensation network circuit and power supply equipment Download PDFInfo
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- CN117498578A CN117498578A CN202311284192.9A CN202311284192A CN117498578A CN 117498578 A CN117498578 A CN 117498578A CN 202311284192 A CN202311284192 A CN 202311284192A CN 117498578 A CN117498578 A CN 117498578A
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- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000008878 coupling Effects 0.000 claims description 54
- 238000010168 coupling process Methods 0.000 claims description 54
- 238000005859 coupling reaction Methods 0.000 claims description 54
- 230000002146 bilateral effect Effects 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 37
- 230000005684 electric field Effects 0.000 abstract description 22
- 238000010586 diagram Methods 0.000 description 9
- 238000004088 simulation Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
Abstract
The invention discloses a non-contact rotary power supply slip ring device, a compensation network circuit and power supply equipment, and relates to the field of wireless power transmission. The non-contact rotary power supply slip ring device comprises: the energy receiving electrode sleeve is internally provided with a cavity, the cavity is annular, the inner side wall of the energy receiving electrode sleeve is provided with an annular groove, and the annular groove and the cavity are coaxially arranged; the energy emitter sleeve is arranged in the cavity, the energy emitter sleeve and the energy receiving electrode shell are coaxially arranged, and the energy emitter sleeve and the surface of the cavity are arranged at intervals; and the connecting mechanism is arranged in the circular groove, is connected with the energy emitter sleeve and is used for rotating in the circular groove. The energy receiving electrode receives the transmission of the energy emitter as much as possible, so that the electric field dissipation in the energy transmission process is greatly reduced.
Description
Technical Field
The invention relates to the field of wireless power transmission, in particular to a non-contact rotary power supply slip ring device, a compensation network circuit and rotary power supply equipment.
Background
In special environments such as outer space spacecraft, wind power generation, petroleum drilling and the like, special equipment in a rotating state is required to be powered through a rotating slip ring, for example, a carbon brush slip ring in a motor is used for continuously powering a rotor, and an SADA device in the spacecraft is used for powering a spacecraft body. Most of the currently applied rotating slip rings are conductive slip rings with physical contact, and the defects of high cost, abrasion during working, easiness in generating abrasive dust and the like exist, so that the service life of the rotating equipment is limited.
The wireless power transmission technology can fundamentally solve a plurality of problems existing in a slip ring power supply mode by virtue of the advantages of non-contact power supply, and further improve the reliability of a power supply unit of the equipment. There is great potential in the field of rotational wireless power supply in specialty environments. Thus, the wireless power transmission technology is also beginning to be used to power special equipment in a rotating state.
In recent years, various nationists have studied the application of magnetic field coupling (Inductive powertransfer, IPT) wireless power supply technology to the problem of wireless power supply of rotating slip rings, and have achieved some results. There are many problems, especially when the technology is applied to the aerospace field, such as large electric field dissipation in the energy transmission process, and low safety in the energy transmission process.
Disclosure of Invention
Object of the invention
The invention aims to provide a non-contact rotary power supply slip ring device, a compensation network circuit and a spacecraft, so as to solve the technical problem that in the prior art, electric field dissipation is large in an energy transmission process due to the adoption of electric field coupling type wireless electric energy transmission, and the safety of the energy transmission process is low.
(II) technical scheme
In order to solve the above problems, the present invention provides a non-contact rotary power supply slip ring device, comprising:
the energy receiving electrode sleeve is internally provided with a cavity, the cavity is annular and extends from one axial end of the energy receiving electrode shell to the other axial end of the energy receiving electrode shell, the inner side wall of the energy receiving electrode sleeve is provided with an annular groove, and the annular groove and the cavity are coaxially arranged;
the energy emitter sleeve is arranged in the cavity, the energy emitter sleeve and the energy receiving electrode shell are coaxially arranged, and the energy emitter sleeve and the surface of the cavity are arranged at intervals; and
the connecting mechanism is arranged in the circular groove and connected with the energy emitter sleeve, and the connecting mechanism is used for rotating in the circular groove.
Optionally, the energy receiving pole sleeve comprises an inner side plate, an outer side plate, a first end plate and a second end plate,
the first end plate and the second end plate are of annular flat plate structures, the outer side plate and the inner side plate are of sleeve-shaped structures, the inner side plate is sleeved in the outer side plate, one axial end of the inner side plate and one axial end of the outer side plate are connected with the plate surface of the first end plate, the other axial end of the inner side plate and the other axial end of the outer side plate are connected with the plate surface of the second end plate, the inner side plate, the outer side plate, the first end plate and the second end plate enclose a cavity, and the annular groove is formed in the plate surface of the inner side plate;
the first end plate is disposed facing one end of the energy emitter sleeve and the second end plate is disposed facing the other end of the energy emitter sleeve.
Optionally, the energy receiving electrode sleeve and the energy emitting electrode sleeve are both copper sleeve structures.
Optionally, the energy emitter sleeve is surrounded by an insulating coating.
Optionally, the non-contact rotary power supply slip ring device is used for rotating equipment, the rotating equipment comprises a rotating shaft and a rotating equipment body, and the rotating shaft is installed in the rotating equipment body;
the connecting mechanism is connected with the rotating shaft, and the energy receiving pole sleeve is connected with the rotating equipment body.
In addition, the invention also provides a compensation network circuit which comprises the non-contact rotary power supply slip ring device, and the compensation network circuit is a bilateral LCLC type resonance compensation network circuit.
Optionally, the non-contact rotary power supply slip ring device is two and is used for generating six equivalent coupling capacitances.
In addition, the invention also provides power supply equipment which comprises the non-contact rotary power supply slip ring device.
(III) beneficial effects
The technical scheme of the invention has the following beneficial technical effects:
according to the invention, on one hand, the energy emitter sleeve and the surface of the cavity are arranged at intervals, so that a non-contact form is formed between the energy receiver sleeve and the energy emitter sleeve, and an electric field coupling type wireless electric energy transmission structure form is formed, so that the electric field coupling type wireless electric energy transmission structure has the advantages of strong electromagnetic interference resistance, small volume, light weight and low cost, and the problems of abrasion and abrasive dust of a contact type rotating slip ring in special environments such as a spacecraft, wind power generation, petroleum drilling and the like in power supply are fundamentally solved; meanwhile, the cost and the weight of the power supply device are reduced, and a potential solution is provided for prolonging the service life of the power supply device of the rotary power supply equipment.
More importantly, the energy emitter sleeve is sleeved in the cavity of the energy receiving electrode sleeve, so that the coupling mechanism formed by the energy emitter and the energy receiving electrode forms a wrapping state, namely the energy receiving electrode wraps the energy emitter, so that the energy receiving electrode receives the transmission of the energy emitter as much as possible, the electric field dissipation in the energy transmission process is greatly reduced, interference caused by the reception of other parts near the energy emitter is avoided, or the situation of overhigh heat after long-time reception is avoided, the danger in the energy transmission process is reduced, and the safety in the energy transmission process is greatly improved. Therefore, the technical problem that the electric field dissipation is large in the energy transmission process and the safety of the energy transmission process is low in the prior art due to the fact that the electric field coupling type wireless electric energy transmission is adopted is solved.
Drawings
FIG. 1 is a schematic block diagram of a non-contact rotary power slip ring device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a non-contact rotary powered slip ring device according to an embodiment of the present invention, taken along an axial direction thereof;
FIG. 3 is a schematic structural exploded view of a non-contact rotary powered slip ring device according to an embodiment of the present invention, taken along an axial direction thereof;
FIG. 4 is a schematic diagram of the compensation network circuit of an embodiment of the present invention;
FIG. 5 is a schematic diagram of four plates of two of the non-contact rotary powered slip rings of an embodiment of the present invention producing six corresponding capacitances;
FIG. 6 is a schematic diagram of a double-sided LCLC resonant compensation network circuit obtained after decoupling the non-contact rotary power supply slip ring according to the pi-type equivalent network circuit according to the embodiment of the invention;
FIG. 7 is a schematic diagram of the charge flow of the generally cylindrical coupling mechanism in an operative state according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of the flow of electric charge in an operating state of the non-contact rotary powered slip ring device according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a simulation analysis of electric field dissipation when the generally cylindrical coupling mechanism of an embodiment of the present invention is in an operational state;
fig. 10 is a schematic diagram of simulation analysis of electric field dissipation when the non-contact rotary power supply slip ring device according to the embodiment of the present invention is in an operating state.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
A layer structure schematic diagram according to an embodiment of the present invention is shown in the drawings. The figures are not drawn to scale, wherein certain details may be exaggerated and some details may be omitted for clarity. The shapes of the various regions, layers and relative sizes, positional relationships between them shown in the drawings are merely exemplary, may in practice deviate due to manufacturing tolerances or technical limitations, and one skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions as actually required.
It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present invention, are intended to be within the scope of the present invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The invention will be described in more detail below with reference to the accompanying drawings. Like elements are denoted by like reference numerals throughout the various figures. For clarity, the various features of the drawings are not drawn to scale.
The present invention will be described in detail with respect to the existing components which are not related to the point of improvement of the present invention, with or without a brief description, and with emphasis on the components which make improvements over the prior art.
Referring to fig. 1 to 6, the present embodiment provides a non-contact rotary power supply slip ring device, including:
the energy receiving electrode sleeve 100 is provided with a cavity 110 in the side wall, the cavity 110 is annular and extends from one axial end of the energy receiving electrode shell to the other axial end of the energy receiving electrode shell, the inner side wall of the energy receiving electrode sleeve 100 is provided with an annular groove 120, and the annular groove 120 and the cavity 110 are coaxially arranged;
the energy emitter sleeve 200 is arranged in the cavity 110, the energy emitter sleeve 200 and the energy receiving electrode shell are coaxially arranged, and the energy emitter sleeve 200 and the surface of the cavity 110 are arranged at intervals; and a connection mechanism 310 disposed in the annular groove 120, the connection mechanism 310 being connected to the energy emitter sleeve 200, the connection mechanism 310 being configured to rotate in the annular groove 120.
In the invention, on one hand, the energy emitter sleeve 200 and the surface of the cavity 110 are arranged at intervals, so that a non-contact form is formed between the energy receiver sleeve 100 and the energy emitter sleeve 200, and an electric field coupling type wireless electric energy transmission structure form is formed, thereby utilizing the advantages of strong electromagnetic interference resistance, small volume, light weight and low cost of the electric field coupling type wireless electric energy transmission structure, and fundamentally solving the problems of abrasion and abrasive dust of the contact type rotating slip ring in power supply in special environments such as spacecrafts, wind power generation, petroleum drilling and the like. Meanwhile, the cost and the weight of the power supply device are reduced, and a potential solution is provided for prolonging the service life of the rotary power supply device.
More importantly, the energy emitter sleeve 200 is sleeved in the cavity 110 of the energy receiving electrode sleeve 100, so that a coupling mechanism formed by the energy emitter and the energy receiving electrode forms a wrapping state, namely the energy receiving electrode wraps the energy emitter, so that the energy receiving electrode receives the transmission of the energy emitter as much as possible, the electric field dissipation in the energy transmission process is greatly reduced, interference caused by the reception of other parts near the energy emitter is avoided, or the situation of overhigh heat after long-time reception is avoided, the danger in the energy transmission process is reduced, and the safety in the energy transmission process is greatly improved. Therefore, the technical problem that the electric field dissipation is large in the energy transmission process and the safety of the energy transmission process is low in the prior art due to the fact that the electric field coupling type wireless electric energy transmission is adopted is solved.
Further, the energy receiving pole sleeve 100 comprises an inner side plate 130, an outer side plate 140, a first end plate 150 and a second end plate 160,
the first end plate 150 and the second end plate 160 are both in annular flat plate structures, the outer side plate 140 and the inner side plate 130 are both in sleeve-shaped structures, the inner side plate 130 is sleeved in the outer side plate 140, one axial end of the inner side plate 130 and one axial end of the outer side plate 140 are both connected with the plate surface of the first end plate 150, the other axial end of the inner side plate 130 and the other axial end of the outer side plate 140 are both connected with the plate surface of the second end plate 160, the inner side plate 130, the outer side plate 140, the first end plate 150 and the second end plate 160 enclose a cavity 110, and the annular groove 120 is formed in the plate surface of the inner side plate 130;
the first end plate 150 is disposed facing one end of the energy emitter sleeve 200, and the second end plate 160 is disposed facing the other end of the energy emitter sleeve 200.
The three outer sides of the energy emitter sleeve 200 are in opposite relation with the inner side plate 130, the outer side plate 140, the first end plate 150 and the second end plate 160 of the energy receiving electrode sleeve 100, so that the coupling capacitance of the unit coupling electrode plate area is greatly improved, the required coupling electrode plate area is smaller, the consumed materials are fewer, and the weight and the cost of the coupling electrode plate can be greatly reduced under the condition of generating the same coupling capacitance.
The above main advantages of the structure of the non-contact rotary power slip ring device of the present invention will be described in detail in the following of the present embodiment, and will not be described herein.
Further, the energy receiving electrode sleeve 100 and the energy emitting electrode sleeve 200 are both copper sleeve structures.
The copper sleeve structure has the characteristics of light weight and low cost, further reduces the weight and reduces the manufacturing cost of the non-contact rotary power supply slip ring device.
Further, the energy emitter sleeve 200 is coated with an insulating coating. The insulating coating is used for preventing electric breakdown accidents in the energy transmission process and ensuring the safety and stability of the system.
Preferably, the insulating coating may be an insulating coating made of polyimide material.
Further, the non-contact rotary power supply slip ring device is used for rotating equipment, the rotating equipment comprises a rotating shaft 320 and a rotating equipment body, and the rotating shaft 320 is installed in the rotating equipment body;
the connection mechanism 310 is connected to the rotation shaft 320, and the power receiving pole sleeve 100 is connected to the rotation device body.
It should be noted that, here, the connection mechanism 310 may be a disk member, the disk member may be placed in the circular groove 120, and the rotation shaft 320 is inserted into the connection mechanism 310, and the energy emitter sleeve 200 is connected to the circular arc edge of the disk member, so that the connection of the energy emitter sleeve 200 to the rotation shaft 320 by the connection member is achieved.
In addition, the rotating device may be a carbon brush slip ring in the motor, which is used for continuously supplying power to the rotor, or may be a SADA (Solar Array Drive Assembly, solar wing driving mechanism) device in the spacecraft and used for supplying power to the spacecraft.
In addition, the embodiment also provides a compensation network circuit, which comprises the non-contact rotary power supply slip ring device, and is a bilateral LCLC type resonance compensation network circuit provided with a full-bridge inversion network circuit and a full-bridge rectification network circuit.
By utilizing the bilateral LCLC resonant compensation network circuit, constant current output irrelevant to a load can be realized, and even if the load fluctuates, the energy output can be kept unchanged, so that the stability of the system is greatly improved.
Preferably, the compensation network circuit is a bilateral LCLC type resonance compensation network circuit provided with a full-bridge inverter network circuit and a full-bridge rectifier network circuit.
Further, the non-contact rotary power supply slip ring device is two and is used for generating six equivalent coupling capacitors.
Further, as shown in fig. 4, the compensation network circuit may be a bilateral LCLC resonant compensation network circuit employing a full-bridge inverter network circuit and a full-bridge rectifier network circuit, wherein the transmitting end is formed by two inductance devices L 1 And L f1 Two capacitive devices C f1 And C ex1 The receiving end consists of two inductance devices L 2 And L f2 Two capacitive devices C f2 And C ex2 Composition is prepared. U (U) in For input AC power supply, U out Is an output alternating current power supply. Due to the compensation capacitance, the port equivalent parallel capacitance of the energy input and output ends can be marked as C in1 ＝C ex1 +C 1 、C in2 ＝C ex2 +C 2 。
The resonant compensation network circuit element parameter relationship is analyzed, and the coupling mechanism is modeled first. Due to the coupling mechanism, i.e. the two non-contact rotary power slip ring devices, it can be considered that in practice there are two sets of "transmit-receive" plates, i.e. a total of four metal plates, respectively designated P in fig. 3 and 5 1 、P 2 、P 3 And P 4 These four metal plates can produce six equivalent coupling capacitances, as shown in fig. 5; to simplify the calculation, the six capacitors can be decoupled into three capacitors by using the formula shown in the formula (1), and a pi-type equivalent network circuit is further formed. The double-sided LCLC type resonance compensation network circuit which takes the non-contact rotary power supply slip ring device as a coupling mechanism and is decoupled according to a pi-type network circuit is shown in figure 6.
When the network circuit works at the resonant frequency, the primary inductance L f1 With primary capacitance C f1 The resonance is constituted as shown in formula (2). At this time 1/jωC f1 ＝jωL f1 Therefore, the primary resonance inductance value L in1 ＝L 1 +L f1 . Primary inductance L 1 、L f1 And C in1 、C in2 、C M Form resonance, secondary inductance L 2 、L f2 And C in1 、C in2 、C M The resonance is constituted as shown in formula (3).
The network circuit can realize constant current output irrelevant to load under the condition of meeting the formulas (2) and (3), and I and U are as follows in The relation of (2) is shown in the formula (4).
Therefore, by adopting the bilateral LCLC resonant compensation network circuit, constant current output irrelevant to a load can be realized, and even if the load fluctuates, the energy output can be kept unchanged, so that the stability of the system is greatly improved.
Referring to fig. 7 to 10, in addition, the non-contact rotary power slip ring device of the present invention has a structure in which the energy receiving electrode sleeve of the present invention wraps the energy emitting electrode sleeve, compared with a general cylindrical coupling mechanism, so that charges can flow from the energy emitting electrode sleeve to the energy receiving electrode sleeve almost uniformly during the energy transmission, as shown in fig. 8. In the conventional cylindrical coupling mechanism, since the energy emitting electrode plate and the energy receiving electrode plate are placed in parallel, during the energy transmission process, part of charges flow to the external environment at the edge of the sleeve, so that electric field dissipation is caused, and damage is caused to equipment in the surrounding environment, as shown in fig. 7. Therefore, compared with the common cylindrical coupling mechanism, the structural form of the non-contact rotary power supply slip ring device can obviously reduce electric field dissipation in the energy transmission process under the same condition, thereby improving the safety in the energy transmission process.
Therefore, compared with a common cylindrical coupling mechanism, the structure of the non-contact rotary power supply slip ring device can greatly reduce electric field dissipation in the energy transmission process and improve the utilization ratio of the coupling capacitor to the coupling polar plate area to a certain extent.
In a conventional cylindrical coupling mechanism, the energy transmitting plate is in direct facing relation with the energy receiving plate on only one face. However, in the structure of the non-contact rotary powered slip ring device of the present invention, three planes of the outer surface of the energy emitter sleeve are each held in a facing relationship with a different plane of the energy receiver sleeve, so that there are more coupling paths, as shown in fig. 8. Therefore, under the condition of consuming the same polar plate area, the structure of the non-contact rotary power supply slip ring device can generate larger equivalent coupling capacitance, and has higher utilization rate on the polar plate area.
As shown in fig. 9 and 10, the structure of the non-contact rotary power slip ring device of the present invention can be verified for superior performance in terms of reducing electric field dissipation by finite element simulation analysis. In Maxwell analysis software, a simulation model is established. An experimental group (structure of the non-contact rotary power supply slip ring device of the invention) and a control group (a common cylindrical coupling mechanism) are arranged, and the two structural members have the same size. Both sets of simulation models apply a voltage stress of 10V at the energy transmitting plate and a voltage stress of 5V at the energy receiving plate.
The electric field dissipation conditions of the two groups of coupling mechanisms are shown in fig. 9 and 10, the electric field dissipation degree of the structure of the non-contact rotary power supply slip ring device is far smaller than that of a common cylindrical coupling mechanism, the influence on the external environment is smaller, and the energy transmission process is safer.
The equivalent capacitance value at the unit plate area can be utilized to reflect the utilization of the coupling capacitance with respect to the coupling plate. The total area value of the coupling mechanism of the common cylindrical coupling mechanism participating in coupling is as follows: 276320mm 2 Six coupling capacitance values are shown in table 1. (the total area value of the coupling mechanism of the structure participation coupling of the non-contact rotary power supply slip ring device of the invention is 592078.4 mm) 2 Six coupling capacitance values are shown in table 2.
Since the equivalent capacitance C is among three capacitances of the pi-type equivalent network circuit M Mainly plays a role of energy transmission, so that the equivalent capacitance C under the area of the unit polar plate can be selected M The values were used as a comparison standard. From the data in tables 1 and 2, it can be calculated that the equivalent capacitance C is the equivalent of the unit plate area of the common cylindrical coupling mechanism M The value was 6.44X 10 -5 pF/mm 2 The equivalent capacitance C of the non-contact rotary power supply slip ring device under the structural unit polar plate area M The value was 6.75X10 -5 pF/mm 2 . Therefore, the equivalent capacitance C of the non-contact rotary power supply slip ring device under the structural unit polar plate area M The value is improved by 5% compared with the common cylindrical coupling mechanism, which shows that the structure of the non-contact rotary power supply slip ring device can generate larger equivalent coupling capacitance under the same coupling polar plate area; meanwhile, under the condition of generating the same equivalent coupling capacitance, the structure of the non-contact rotary power supply slip ring device needs smaller coupling polar plate area. The material consumption of the coupling mechanism can be reduced, so that the weight and the cost of the coupling mechanism are reduced.
In addition, the embodiment also provides a rotating device, which comprises the non-contact rotating power supply slip ring device. Since the technical means adopted by the rotating device and the corresponding technical effects obtained are the same as those of the non-contact rotating power supply slip ring device, the corresponding explanation of the rotating device is omitted.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, or the like, which does not depart from the spirit and scope of the present invention, should be included in the protection zone of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the metes and bounds of the appended claims, or equivalents of such metes and bounds.
TABLE 1 simulation results of six capacitance values of a conventional cylindrical coupling mechanism
TABLE 2 six capacitance simulation results for a non-contact rotary powered slip ring device of the present invention
Claims (8)
1. A non-contact rotary powered slip ring apparatus, comprising:
the energy receiving electrode sleeve is internally provided with a cavity, the cavity is annular and extends from one axial end of the energy receiving electrode shell to the other axial end of the energy receiving electrode shell, the inner side wall of the energy receiving electrode sleeve is provided with an annular groove, and the annular groove and the cavity are coaxially arranged;
the energy emitter sleeve is arranged in the cavity, the energy emitter sleeve and the energy receiving electrode shell are coaxially arranged, and the energy emitter sleeve and the surface of the cavity are arranged at intervals; and the connecting mechanism is arranged in the circular groove, is connected with the energy emitter sleeve and is used for rotating in the circular groove.
2. The non-contact rotary powered slip ring device of claim 1 wherein the energy receiving pole sleeve comprises an inner side plate, an outer side plate, a first end plate and a second end plate,
the first end plate and the second end plate are of annular flat plate structures, the outer side plate and the inner side plate are of sleeve-shaped structures, the inner side plate is sleeved in the outer side plate, one axial end of the inner side plate and one axial end of the outer side plate are connected with the plate surface of the first end plate, the other axial end of the inner side plate and the other axial end of the outer side plate are connected with the plate surface of the second end plate, the inner side plate, the outer side plate, the first end plate and the second end plate enclose a cavity, and the annular groove is formed in the plate surface of the inner side plate;
the first end plate is disposed facing one end of the energy emitter sleeve and the second end plate is disposed facing the other end of the energy emitter sleeve.
3. The non-contact rotary powered slip ring device of claim 1, wherein the energy receiving electrode sleeve and the energy emitting electrode sleeve are each a copper sleeve structure.
4. The non-contact rotary powered slip ring device of claim 1, wherein the energy emitter sleeve is surrounded by an insulating coating.
5. The non-contact rotary power slip ring apparatus according to any one of claims 1 to 4, wherein the non-contact rotary power slip ring apparatus is used for a rotating device including a rotating shaft and a rotating device body, the rotating shaft being mounted in the rotating device body;
the connecting mechanism is connected with the rotating shaft, and the energy receiving pole sleeve is connected with the rotating equipment body.
6. A compensation network circuit, characterized in that the compensation network circuit comprises the non-contact rotary power supply slip ring device according to any one of claims 1 to 5, and the compensation network circuit is a bilateral LCLC type resonant compensation network circuit.
7. The compensation network circuit of claim 6 wherein the non-contact rotary powered slip ring device is two and is configured to produce six equivalent coupling capacitances.
8. A power supply apparatus, characterized in that the power supply apparatus comprises a non-contact rotary power slip ring device as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311284192.9A CN117498578A (en) | 2023-10-07 | 2023-10-07 | Non-contact rotary power supply slip ring device, compensation network circuit and power supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311284192.9A CN117498578A (en) | 2023-10-07 | 2023-10-07 | Non-contact rotary power supply slip ring device, compensation network circuit and power supply equipment |
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| Publication Number | Publication Date |
|---|---|
| CN117498578A true CN117498578A (en) | 2024-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311284192.9A Pending CN117498578A (en) | 2023-10-07 | 2023-10-07 | Non-contact rotary power supply slip ring device, compensation network circuit and power supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117498578A (en) |
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2023
- 2023-10-07 CN CN202311284192.9A patent/CN117498578A/en active Pending
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