CN111610728A - Anti-electromagnetic interference electric tuning controller and anti-electromagnetic interference method - Google Patents
Anti-electromagnetic interference electric tuning controller and anti-electromagnetic interference method Download PDFInfo
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- CN111610728A CN111610728A CN202010549462.4A CN202010549462A CN111610728A CN 111610728 A CN111610728 A CN 111610728A CN 202010549462 A CN202010549462 A CN 202010549462A CN 111610728 A CN111610728 A CN 111610728A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0015—Gaskets or seals
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The embodiment of the invention provides an anti-electromagnetic interference electric tuning controller and an anti-electromagnetic interference method, wherein the electric tuning controller is installed inside an antenna and comprises a Remote Control Unit (RCU), at least one signal transmission line and at least one motor, the RCU is connected with each motor through the corresponding signal transmission line, the RCU is sealed by a first metal shielding device, each motor is sealed by a second metal shielding device, and each signal transmission line is a radio frequency coaxial cable. In the embodiment of the invention, each part of the electric tuning controller is electromagnetically shielded, and each signal transmission line adopts a radio frequency coaxial cable, so that the material is easy to obtain, the realization cost is low, the implementation is convenient, the reliability is high, the stability is good, and the problem of mutual interference between the electric tuning controller and the antenna in the base station antenna can be effectively solved.
Description
Technical Field
The invention belongs to the technical field of base station antennas, and particularly relates to an anti-electromagnetic interference electric tuning controller and an anti-electromagnetic interference method.
Background
The electric tuning controller is arranged in the antenna and has the function of being responsible for adjusting the electric downtilt angle of the base station antenna. The antenna is used for transmitting or receiving high-frequency electromagnetic waves, so that mutual conversion of the electromagnetic waves and electric energy is completed, and a wireless communication function is realized. Because the antenna is an electromagnetic wave transmitting and receiving device, and the electric tuning controller is arranged in the antenna and the operation of the electric tuning controller is easily subjected to electromagnetic interference, the electric tuning controller needs to be protected against electromagnetic interference. Practice proves that the performance of the whole antenna system can hardly reach the standard if the problem of mutual electromagnetic interference between the antenna and the electrically-adjustable controller can not be well solved.
The electric tuning controller mainly comprises three parts: RCU (remote control unit), signal transmission line and motor, RCU passes through signal transmission line and is connected with the motor.
The electromagnetic interference protection of the electric tuning controller in the current market is only to make a shell for the whole electric tuning controller, and the protection to other places is very little, so that a plurality of antennas are very unstable on third-order intermodulation indexes, and the performance cannot be ensured.
Disclosure of Invention
To overcome the above existing problems or at least partially solve the above problems, embodiments of the present invention provide an anti-electromagnetic interference electrically tunable controller and an anti-electromagnetic interference method.
According to a first aspect of embodiments of the present invention, an anti-electromagnetic interference electrical tuning controller is provided, where the electrical tuning controller is installed inside an antenna, and the electrical tuning controller includes a remote control unit RCU, at least one signal transmission line, and at least one motor, where the RCU is connected to each motor through a corresponding signal transmission line, the RCU is sealed by a first metal shielding device, each motor is sealed by a second metal shielding device, and each signal transmission line is a radio frequency coaxial cable.
On the basis of the above technical solutions, the embodiments of the present invention may be further improved as follows.
Optionally, the first metal shielding device is fixedly installed with the RCU, and the first metal shielding device prohibits electrical connection with a PCB circuit ground and other potential reference points of the RCU.
Optionally, the motor further comprises a first sealing area, the first sealing area is made of an electromagnetic shielding material, the first sealing area seals a wire outlet slot gap, and the wire outlet slot gap is generated by the fact that a signal transmission line led out by the RCU penetrates out of the first metal shielding device.
Optionally, the second metal shielding device is fixedly installed with the motor, and the second metal shielding device prohibits electrical connection with a PCB circuit ground and other potential reference points of the motor.
Optionally, still include the second seal area, the second seal area is the electromagnetic shield material seal area, the sealed trunking gap that encloses of second seal area, the trunking gap by that RCU draws forth arrive the signal transmission line of motor penetrates the second metal shield assembly produces.
Optionally, the motor is fixedly connected with the fixing hole of the second metal shielding device through a mounting thread by a screw, a motor rotating shaft outlet is formed in the side surface of the second metal shielding device, and the motor drives the mechanical transmission device through the motor rotating shaft to change the electrical downtilt angle of the antenna.
Optionally, the motor further comprises a third sealing area, the third sealing area is made of an electromagnetic shielding material, and the third sealing area seals the outlet of the rotating shaft of the motor.
Optionally, the electric tuning controller is located on the back of the antenna reflection plate, the antenna element is located on the front of the antenna reflection plate, and the distance between the electric tuning controller and the antenna element is greater than a preset distance.
According to a second aspect of the embodiments of the present invention, there is provided an anti-electromagnetic interference method for an electrical tuning controller, where the electrical tuning controller is installed inside an antenna, the electrical tuning controller includes a remote control unit RCU, at least one signal transmission line, and at least one motor, and the RCU is connected to each motor through a corresponding signal transmission line, and includes:
and sealing the RCU and each motor by adopting a metal shielding device, wherein each signal transmission line adopts a radio frequency coaxial cable.
Optionally, the method further includes:
and sealing gaps generated between each signal transmission line and the metal shielding device by adopting an electromagnetic shielding material sealing area.
The embodiment of the invention provides an anti-electromagnetic interference electric tuning controller and an anti-electromagnetic interference method, wherein each part of the electric tuning controller is electromagnetically shielded, each signal transmission line adopts a radio frequency coaxial cable, materials are easy to obtain, the realization cost is low, the implementation is convenient, the reliability is high, the stability is good, and the problem that the electric tuning controller and an antenna in a base station antenna interfere with each other can be effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electrical tuning controller according to an embodiment of the present invention;
FIG. 2 is a schematic view of each shielding device;
fig. 3 is a schematic side structure diagram of the inside of an antenna of the electric tuning controller.
In the drawings, the names of the components represented by the respective reference numerals are as follows:
110. the antenna comprises a first metal shielding device, 120, a first sealing area, 130, a radio frequency coaxial cable, 140, a second sealing area, 150, a second metal shielding device, 160, a third sealing area, 210, an RCU, 220, an outlet slot gap, 230, a signal transmission line, 240, an inlet slot gap, 250, a motor, 260, a motor rotating shaft outlet, 310 and an antenna oscillator.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Referring to fig. 1 and 2, an anti-electromagnetic interference electrical tuning controller according to an embodiment of the present invention is provided, and is installed inside an antenna, and includes a remote control unit RCU210, at least one signal transmission line 230, and at least one motor 250, where the RCU210 is connected to each motor 250 through the corresponding signal transmission line 230. In which the RCU210 seals the first metallic shielding device 110, each of the motors 250 seals the second metallic shielding device 150, and each of the signal transmission lines 230 is a radio frequency coaxial cable 130.
It will be appreciated that the electrically adjustable controller is internal to the antenna and functions to take care of adjusting the electrical downtilt of the base station antenna. The antenna is used for transmitting or receiving high-frequency electromagnetic waves, so that mutual conversion of the electromagnetic waves and electric energy is completed, and a wireless communication function is realized. Because the antenna is an electromagnetic wave transmitting and receiving device, and the electric tuning controller is arranged in the antenna and the operation of the electric tuning controller is easily subjected to electromagnetic interference, the electric tuning controller needs to be protected against electromagnetic interference. Practice proves that the performance of the whole antenna system can hardly reach the standard if the problem of mutual electromagnetic interference between the antenna and the electrically-adjustable controller can not be well solved.
Based on the above problems, the embodiment of the invention takes EMC (electromagnetic compatibility) as a theoretical research basis, and adopts a tighter and more scientific way to analyze and design the anti-electromagnetic interference of the electrically-tunable controller, so as to ensure that the operating electromagnetic environment of the electrically-tunable controller meets the requirements and does not generate intolerable electromagnetic interference to external equipment. Three elements of EMC are an interference source, a coupling path and sensitive equipment, and solving the problem of electromagnetic interference is to clarify the three elements and then eliminate one of the three elements. The analyzed antenna and the electric tuning controller are mutually interference sources and are mutually sensitive equipment, and the coupling path is air and a circuit board. Because the antenna and the electrically-adjustable controller are indispensable components in the intelligent antenna and any one of the antenna and the electrically-adjustable controller cannot be removed, the protection measures of electromagnetic interference can be considered only from the direction of the electromagnetic coupling path. Through the analysis, the scheme which is relatively easy to implement in engineering is realized by completely shielding the electrically-adjustable controller by using shielding materials.
Wherein, the electric tuning controller is composed of three parts: the remote control unit RCU210, the plurality of signal transmission lines 230, and the plurality of motors 250 can block a coupling path where electromagnetic waves interfere as long as the three parts are completely electromagnetically shielded, thereby achieving the purpose of preventing electromagnetic interference. In the embodiment of the invention, each component of the electric tuning controller is electromagnetically shielded, for example, each RCU210 and each motor 250 are shielded by an electromagnetic shielding device, and each signal transmission line 230 adopts a radio frequency coaxial cable 130, so that the material is easy to obtain, the realization cost is low, the implementation is convenient, the reliability is high, the stability is good, and the problem of mutual interference between the electric tuning controller and the antenna in the base station antenna can be effectively solved.
As an alternative embodiment, first metallic shield 110 is fixedly mounted with RCU210, and first metallic shield 110 inhibits electrical connection to the PCB circuit ground of RCU210 and other potential reference points.
It is understood that the RCU210 is hermetically shielded using a first electromagnetic shielding device, the first metallic shielding device 110 is fixedly mounted with the RCU210, and the first metallic shielding device 110 is prohibited from being electrically connected with the RCU 210. For example, the metal shield should isolate electrical connections to the PCB circuit ground of the RCU210 and other potential reference points, otherwise the shielding function would fail.
The first metal shielding device 110 has a mounting screw thread, and fixing holes are formed in the PCB of the RCU210, wherein it is ensured that the fixing holes do not have metal property, and the first metal shielding device 110 is screwed with the PCB of the RCU210 through the mounting screw thread and the fixing holes. Since the fixing hole of the PCB board is not metallic, there is no electrical connection between the first metallic shielding device 110 and the RCU 210.
As an alternative embodiment, the first sealing region 120 is further included, the first sealing region 120 is a sealing region made of an electromagnetic shielding material, the first sealing region 120 seals the wire-out slot gap 220, and the wire-out slot gap 220 is generated by the signal transmission line 230 led out from the RCU210 to the motor 250 and passing out of the first metal shielding device 110.
It is understood that the embodiment of the present invention not only performs electromagnetic sealing shielding on each component of the electrical tuning controller, but also performs sealing shielding on the connection gap, for example, because the RCU210 is sealed by the first metal shielding device 110, when the RCU210 is connected to each motor 250 through the corresponding signal transmission line 230, each signal transmission line 230 needs to penetrate through the first metal shielding device 110. An outlet slot gap 220 is formed between each signal transmission line 230 and the first metal shielding device 110, and the electrical tuning controller is also subjected to external electromagnetic interference through the outlet slot gap 220, so that electromagnetic shielding is also required for the outlet slot gap 220. The first sealing region 120 is formed of an electromagnetic shielding material, and the first sealing region 120 seals the slot 220.
As an alternative embodiment, the second metallic shielding device 150 is fixedly installed with the motor 250, and the second metallic shielding device 150 prohibits the existence of the electrical connection with the PCB circuit ground and other potential reference points of the motor 250.
It will be appreciated that for the motor 250, similar to the RCU210, the motor 250 is hermetically shielded by the second electromagnetic shielding device, the second metal shielding device 150 is fixedly mounted with the motor 250, and the second metal shielding device 150 is prohibited from being electrically connected to the motor 250, for example, the metal shielding can should isolate electrical connections with the PCB circuit ground of the motor 250 and other potential reference points, otherwise the shielding function will fail.
The second metal shielding device 150 has a mounting thread, and fixing holes are formed in the PCB of the motor 250, wherein it is ensured that the fixing holes do not have metal property, and the second metal shielding device 150 is in threaded connection with the PCB of the motor 250 through the mounting thread and the fixing holes. Since the fixing hole of the PCB board is not metallic, there is no electrical connection between the second metal shielding device 150 and the motor 250.
As an alternative embodiment, the sealing device further includes a second sealing region 140, the second sealing region 140 is a sealing region made of an electromagnetic shielding material, the second sealing region 140 seals a wire-inlet slot 240, and the wire-inlet slot 240 is generated by the signal transmission wire 230 led out from the RCU210 to the motor 250 penetrating into the second metal shielding device 150.
It will be appreciated that since the motors 250 are sealed by the second metallic shielding device 150, when the RCU210 is connected to each motor 250 through the corresponding signal transmission line 230, each signal transmission line 230 needs to penetrate the second metallic shielding device 150 to be connected to the motor 250. A slot entrance gap 240 is formed between each signal transmission line 230 and the second metal shielding device 150, and the motor 250 is also subjected to external electromagnetic interference through the slot entrance gap 240, so that electromagnetic shielding is also required for the slot entrance gap 240. The second sealing region 140 is formed of an electromagnetic shielding material, and the second sealing region 140 seals the outlet slot gap 220.
As an alternative embodiment, the motor 250 is fixedly connected with the fixing hole of the second metal shielding device 150 by a screw through a mounting thread, a motor shaft outlet 260 is formed on the side surface of the second metal shielding device 150, and the motor 250 drives the mechanical transmission device through the motor 250 shaft to change the electrical downtilt angle of the antenna.
It can be understood that the motor 250 and the second metal shielding device 150 are fixed by a plurality of mounting threads on the motor 250, fixing holes corresponding to the mounting threads are formed on the second metal shielding device 150, and the motor 250 and the second metal shielding device 150 are fixed by screws. The side surface of the second metal shielding device 150 is provided with a motor rotating shaft outlet 260, and the motor 250 drives the mechanical transmission device through the rotating shaft of the motor 250 to change the electrical downtilt of the antenna.
As an alternative embodiment, the motor further includes a third sealing area 160, where the third sealing area 160 is a sealing area made of an electromagnetic shielding material, and the third sealing area 160 seals the motor shaft outlet 260.
It can be understood that, since the second metal shielding device 150 is provided with the motor rotation shaft outlet 260, the motor 250 still suffers from external electromagnetic interference through the motor 250 shaft outlet, and therefore the third sealing region 160 is adopted to seal and shield the motor rotation shaft outlet 260 in the embodiment of the present invention.
As an alternative embodiment, referring to fig. 3, the electrical tuning controller is located on the back surface of the antenna reflection plate, the 310 antenna element is located on the front surface of the antenna reflection plate, and a distance between the electrical tuning controller and the antenna element 310 is greater than a preset distance.
It can be understood that, the above embodiments shield each component of the electrical tuning controller, and the embodiments of the present invention enlarge the distance between the electrical tuning controller and the antenna element as much as possible, so that the electrical tuning controller is far away from the antenna element as much as possible. The electric tuning controller is located on the back of the antenna reflecting plate, the horizontal distance of the electric tuning controller should be far away from the antenna oscillator as far as possible, and the antenna oscillator is located on the front of the reflecting plate.
The anti-electromagnetic interference electrical tuning controller provided in the embodiment of the present invention is described below with reference to fig. 1 to fig. 3, wherein, with reference to fig. 1 and fig. 2, the electrical tuning controller includes an RCU210, a plurality of signal transmission lines 230, and a plurality of motors 250, and the RCU210 is connected to each motor 250 through each corresponding signal transmission line 230. The RCU210 is sealed by the first metal shielding device 110, and an outlet slot gap 220 formed between the first metal shielding device 110 and each signal transmission line 230 is sealed and shielded by the first sealing region 120. Similarly, each motor 250 is sealed by the second metal shielding device 150, and the slot gap 240 between each signal transmission line 230 and the second metal shielding device 150 is sealed by the second sealing region 140. Each second metal shielding device 150 is provided with a motor shaft outlet 260, the motor 250 is connected with a mechanical transmission device through a motor 250 shaft, the mechanical transmission device is driven to adjust the downward electrical inclination angle of the antenna, and the motor shaft outlet 260 is shielded and sealed by using the third sealing area 160.
In addition, the distance between the electrical tuning controller and the antenna element 310 is enlarged as much as possible, so that the electrical tuning controller is far away from the antenna element 310 as much as possible. The electric tuning controller is located on the back of the antenna reflection plate, the horizontal distance of the electric tuning controller should be as far away from the antenna element 310 as possible, and the antenna element 310 is located on the front of the reflection plate.
The embodiment of the invention also provides an anti-electromagnetic interference method of the electric tuning controller, the electric tuning antenna controller is arranged in an antenna, the electric tuning antenna controller comprises a remote control unit RCU, at least one signal transmission line and at least one motor, the RCU is connected with each motor through the corresponding signal transmission line, and the method comprises the following steps:
the RCU and each motor are sealed by adopting a metal shielding device, and each signal transmission line adopts a radio frequency coaxial cable.
It can be understood that the electric tuning controller is composed of three parts: RCU, signal transmission line and motor, wherein, RCU passes through signal transmission line and is connected with the electrode. The coupling path of the interference of the electromagnetic wave can be blocked by only completely electromagnetically shielding the three components, so that the aim of preventing the electromagnetic interference is fulfilled. Considering that the electromagnetic shielding device has an outlet slot and an inlet slot, and there is a gap between the outlet slot and the inlet slot, which generates electromagnetic leakage to cause interference, the gap between the outlet slot and the inlet slot is sealed.
The material of the signal transmission line also has influence on the electromagnetic performance, so the signal transmission line adopts a radio frequency coaxial cable.
The mounting position of the electric tuning controller in the antenna also can greatly influence the electromagnetic receiving and transmitting performance of the antenna board, the electric tuning control system is far away from the antenna oscillator and is positioned on the back of the antenna reflecting board, and the antenna oscillator is positioned on the front of the reflecting board.
The embodiment of the invention provides an anti-electromagnetic interference electric tuning controller and an anti-electromagnetic interference method, which mainly have the following advantages:
(1) each component of the electric tuning controller is subjected to electromagnetic shielding design, so that electromagnetic interference is prevented to the maximum extent;
(2) the signal transmission line of the electric tuning controller adopts a radio frequency coaxial cable, so that EMC interference can be effectively shielded.
(3) And the gaps of the wire outlet grooves and the gaps of the wire inlet grooves are sealed and shielded to prevent electromagnetic leakage.
(4) The mounting position of the electric tuning controller in the antenna is regulated, the electric tuning controller is far away from the antenna oscillator as far as possible, and the electromagnetic interference of the antenna to the electric tuning controller is reduced to the maximum extent.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides an anti-electromagnetic interference's electricity accent controller, electricity accent controller installs inside the antenna, electricity accent controller includes remote control unit RCU, an at least signal transmission line and at least one motor, RCU is connected with each motor through the signal transmission line that corresponds, a serial communication port, RCU is sealed for first metal shield, and each motor does second metal shield seals, and each signal transmission line is the coaxial cable of radio frequency.
2. The electrical tilt controller of claim 1, wherein the first metallic shielding device is fixedly mounted with the RCU, and the first metallic shielding device inhibits electrical connection with a PCB circuit ground of the RCU and other potential reference points.
3. The electrical tilt controller according to claim 2, further comprising a first sealing area, wherein the first sealing area is made of an electromagnetic shielding material, the first sealing area seals an outlet slot gap, and the outlet slot gap is generated by a signal transmission line, led out by the RCU, to the motor and penetrating out of the first metal shielding device.
4. The electrical tilt controller according to claim 1, wherein the second metal shielding device is fixedly mounted with the motor, and the second metal shielding device prohibits electrical connection with a PCB circuit ground and other potential reference points of the motor.
5. The antenna controller of the electric tuning body according to claim 4, further comprising a second sealing area, wherein the second sealing area is made of an electromagnetic shielding material, the second sealing area seals a slot gap, and the slot gap is generated by a signal transmission line led out from the RCU and reaching the motor penetrating into the second metal shielding device.
6. The electrical tilt controller according to claim 5, wherein the motor is fixedly connected with the fixing hole of the second metal shielding device by a screw via a mounting thread, a motor shaft outlet is formed in a side surface of the second metal shielding device, and the motor drives the mechanical transmission device via the motor shaft to change an electrical downtilt angle of the antenna.
7. The electric tilt controller according to claim 6, further comprising a third sealing area, wherein the third sealing area is made of an electromagnetic shielding material, and the third sealing area seals the outlet of the rotating shaft of the motor.
8. The electric tuning controller according to any one of claims 1 to 7, wherein the electric tuning controller is located on a back surface of an antenna reflection plate, the antenna element is located on a front surface of the antenna reflection plate, and a distance between the electric tuning controller and the antenna element is greater than a preset distance.
9. The utility model provides an anti-electromagnetic interference method of controller is transferred to electricity, it installs inside the antenna to transfer the controller to electricity, it includes remote control unit RCU, an at least signal transmission line and at least one motor to transfer the controller to electricity, RCU is connected with each motor through the signal transmission line that corresponds, its characterized in that includes:
and sealing the RCU and each motor by adopting a metal shielding device, wherein each signal transmission line adopts a radio frequency coaxial cable.
10. The method of claim 9, further comprising:
and sealing gaps generated between each signal transmission line and the metal shielding device by adopting an electromagnetic shielding material sealing area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010549462.4A CN111610728A (en) | 2020-06-16 | 2020-06-16 | Anti-electromagnetic interference electric tuning controller and anti-electromagnetic interference method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010549462.4A CN111610728A (en) | 2020-06-16 | 2020-06-16 | Anti-electromagnetic interference electric tuning controller and anti-electromagnetic interference method |
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| CN111610728A true CN111610728A (en) | 2020-09-01 |
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| CN202010549462.4A Pending CN111610728A (en) | 2020-06-16 | 2020-06-16 | Anti-electromagnetic interference electric tuning controller and anti-electromagnetic interference method |
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Cited By (1)
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| RU222368U1 (en) * | 2023-10-06 | 2023-12-21 | Российская Федерация, от имени которой выступает государственный заказчик Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Basic VSAT satellite communication platform, designed, among other things, to provide autonomous navigation |
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| RU222368U1 (en) * | 2023-10-06 | 2023-12-21 | Российская Федерация, от имени которой выступает государственный заказчик Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Basic VSAT satellite communication platform, designed, among other things, to provide autonomous navigation |
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Effective date of registration: 20201029 Address after: 430205 Hubei city of Wuhan province Jiangxia Hidden Dragon Island Tan lake two Road No. 1 Applicant after: Wuhan Hongxin Technology Development Co.,Ltd. Address before: 430073 Hubei province Wuhan Dongxin East Lake high tech Development Zone, Road No. 5 Applicant before: Wuhan Hongxin Telecommunication Technologies Co.,Ltd. |
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Application publication date: 20200901 |