CN114899559A - Frequency-selecting phase-shifting device and multi-frequency antenna - Google Patents
Frequency-selecting phase-shifting device and multi-frequency antenna Download PDFInfo
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- CN114899559A CN114899559A CN202210713070.6A CN202210713070A CN114899559A CN 114899559 A CN114899559 A CN 114899559A CN 202210713070 A CN202210713070 A CN 202210713070A CN 114899559 A CN114899559 A CN 114899559A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
- F16H55/088—Profiling with corrections on tip or foot of the teeth, e.g. addendum relief for better approach contact
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
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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
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a frequency-selecting phase-shifting device and a multi-frequency antenna, wherein the frequency-selecting phase-shifting device comprises a plurality of phase-shifting parts and transmission modules which are arranged side by side, the end part of a meshing tooth of a first clutch part is of a polygonal pyramid structure, and the polygonal pyramid structure is provided with a common cone point and at least three ridges converged at the common cone point; the end part of the meshing tooth of the second clutch component is provided with at least one flat surface; when the two clutch components cut into each other in the process of meshing with each other, the common conical point of the first clutch component and the flat surface of the second clutch component form point-surface contact. When the first clutch part and the second clutch part of the frequency-selecting phase-shifting device are mutually cut, the first clutch part and the second clutch part are in contact to form a point-surface contact relationship, so that the slopes of all the edge surfaces at the end part of the first clutch part and the flat surfaces of the second clutch part are different, and an avoidance included angle is formed between each flat surface and each edge surface, so that the meshing teeth of the first clutch part can further move.
Description
Technical Field
The invention belongs to the technical field of mobile communication, and particularly relates to a frequency-selecting phase-shifting device and a multi-frequency antenna provided with the same.
Background
With the increasing number of mobile communication terminal users and the popularity of 5G, the demand for network capacity of sites in a mobile cellular network is increasing, and at the same time, the interference between different sites and even between different sectors of the same site is required to be minimized, that is, the maximization of network capacity and the minimization of interference are achieved. This is usually achieved by adjusting the downtilt angle of the antenna beam at the station.
When the antenna is a multi-frequency antenna, the beam downtilt angle is mainly adjusted in a mechanical downtilt mode. Specifically, a transmission device is arranged in the antenna, the transmission device is respectively connected with phase shifting parts corresponding to each frequency band in the multi-frequency antenna through a plurality of phase shifting parts, and after the transmission device is meshed with any one phase shifting part through a phase shifting gear, the phase shifting gear is rotated to drive the phase shifting part to control the phase shifting part corresponding to the frequency band to move, so that the phase shifting operation is implemented.
However, in this method, the phase shifting gear is required to move linearly back and forth inside the transmission device to be engaged with any one of the phase shifting members, and since the phase shifting gear moves mechanically and the phase shifting member is fixed in the transmission device, when the phase shifting gear is cut into the phase shifting member, and since the phase shifting gear is not aligned with the corresponding phase shifting member or respective engaging teeth thereof are mutually abutted, the phase shifting gear will push the phase shifting member away from the original track under the action of the driving moment, which causes the problem of arrangement of the phase shifting member, thereby rendering the transmission device ineffective. Or when the gears in the transmission device need to be separated, one gear is cut into the other gear, and the two gears which are separated and combined are accommodated and blocked due to misalignment or mutual interference of respective meshing teeth, so that the transmission device loses function.
Disclosure of Invention
The present invention is to solve at least one of the above problems and to provide a frequency-selective phase shifting apparatus and a multi-frequency antenna.
In order to meet various purposes of the invention, the invention adopts the following technical scheme:
the invention is suitable for one of the purposes of providing a frequency-selecting phase-shifting device, which comprises a plurality of phase-shifting parts and transmission modules arranged side by side,
the transmission module comprises two clutch parts, the two clutch parts are mutually meshed with each other through meshing teeth to realize torque transmission, one of the phase-shifting parts is selected to receive the torque, or the torque is transmitted to the selected phase-shifting part;
the end part of the meshing teeth of the first clutch component is of a polygonal pyramid structure, and the polygonal pyramid structure is provided with a common cone point and at least three ridges converged at the common cone point; the end part of the meshing tooth of the second clutch component is provided with at least one flat surface;
when the two clutch components cut into each other in the process of meshing with each other, the common conical point of the first clutch component and the flat surface of the second clutch component form point-surface contact.
Furthermore, the first clutch component is a gear, the second clutch component is a plurality of phase-shifting racks which are arranged corresponding to the phase-shifting components, and each phase-shifting rack is used for transmitting the torque to the corresponding phase-shifting component.
Furthermore, the first clutch component and the second clutch component are both gears, the second clutch component is used for meshing any one of a plurality of phase-shifting racks which are arranged corresponding to the plurality of phase-shifting components, and each phase-shifting rack is used for transmitting the torque to the corresponding phase-shifting component.
Furthermore, the first clutch component and the second clutch component are both gears, and the second clutch component is used for receiving the torque and controlling the screw-nut mechanism in the transmission module to enable the nut in the screw-nut mechanism to be aligned with one of the phase shifting components.
Furthermore, two adjacent meshing teeth of one clutch part are arranged in a mutually staggered mode, and a plurality of meshing teeth of the other clutch part are arranged side by side.
Furthermore, when the common conical point of the first clutch component and the flat surface of the second clutch component form point-surface contact, a plurality of edge surfaces of the end part of the first clutch component forming the meshing teeth are arranged at an angle with the flat surface.
Furthermore, a plurality of flat surfaces are arranged at the end parts of the gear teeth of the second clutch component, and the flat surfaces form a multi-pyramid structure which comprises at least three ridges and has a common cone point.
Preferably, the end of the gear teeth of the second clutch member is provided with two flat surfaces, and the two flat surfaces share the same edge.
Specifically, the end parts of the meshing teeth of the first clutch component and/or the second clutch component are in a triangular pyramid or rectangular pyramid structure.
The invention is suitable for one of the purposes of providing a multi-frequency antenna, which comprises a plurality of phase shifting parts corresponding to a plurality of frequency bands, and the multi-frequency antenna comprises the frequency-selecting phase-shifting module according to any one of the previous purposes, wherein each phase shifting part is provided with a phase shifting component corresponding to one frequency-selecting phase-shifting module and is in linkage arrangement with the phase shifting component.
Compared with the prior art, the invention has the following advantages:
firstly, when the first clutch component and the second clutch component of the frequency-selecting phase-shifting device are mutually cut, the common conical point of the end part of the meshing tooth, which is firstly contacted with the second clutch component, of the first clutch component is contacted with the flat surface of the meshing tooth of the second clutch component, so that a point-surface contact relation is formed, the slopes of all the edge surfaces of the end part of the first clutch component and the flat surface of the second clutch component are different, and an avoidance included angle is formed between each flat surface and each edge surface, so that the meshing tooth of the first clutch component can further move and is mutually meshed with the second clutch component.
Secondly, the end part of the meshing teeth of the first clutch part of the frequency-selecting phase-shifting device is of a polygonal pyramid structure, the polygonal pyramid structure is provided with a common conical point and at least three ridges converged at the common conical point, the end part of the meshing teeth of the second clutch part is provided with at least one flat surface, so that a point-surface contact relation is formed when the common conical point of the end part of the meshing teeth of the first clutch part is in contact with the flat surface of the end part of the meshing teeth of the second clutch part, an avoidance included angle is formed between the end part of the meshing teeth of the first clutch part and the end part of the meshing teeth of the second clutch part, and the first clutch part and the second clutch part are convenient to be meshed with each other and cannot be mutually clamped.
Thirdly, the frequency-selecting phase-shifting device provided by the invention has the advantages that the first clutch part and the second clutch part are arranged to transmit torque mutually, so that a transmission module of the frequency-selecting phase-shifting device cannot be blocked due to mutual interference between meshing teeth, and the frequency-selecting phase-shifting device with a complex structure can smoothly run.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a first clutch component with a rectangular pyramid structure at the end.
Fig. 2 is a schematic structural view of a first clutch member having a triangular pyramid-shaped end portion.
Fig. 3 is a schematic diagram of the engagement of the first clutch member and the second clutch member.
Fig. 4 is an enlarged view of a portion a of fig. 3.
Fig. 5 is a cross-sectional view of fig. 3 showing the common conical point of the first end of the first clutch member and the second flat surface of the second clutch member.
FIG. 6 is a schematic illustration of the engagement of a first clutch member with a second clutch member according to another embodiment.
Fig. 7 is a cross-sectional view of fig. 6 showing the common conical point of the first end of the first clutch member and the second flat surface of the second clutch member.
Fig. 8 is an exemplary reference schematic diagram of a frequency-selective phase-shifting apparatus.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present invention and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The invention provides a frequency-selecting phase-shifting device which is provided with a transmission module, wherein the transmission device is provided with two clutch parts which need to be mutually clutched, the end parts of meshing teeth of a first clutch part are in a polygonal pyramid structure, when the two clutch parts are mutually cut in the process of being mutually meshed, the common conical point of the end parts of the first clutch part in the polygonal pyramid structure and the flat surface of a second clutch part form a point-surface contact relation, so that the two meshing teeth which are in contact are not mutually interfered, the first clutch part and the second clutch part are not mutually clamped, and the transmission module loses the action.
In an exemplary embodiment of the present invention, with reference to fig. 8, fig. 8 is an exemplary reference schematic diagram of a frequency-selective phase-shifting apparatus, and a person skilled in the art can understand the structure of the frequency-selective phase-shifting apparatus according to fig. 8 to reasonably deduce the structure of the frequency-selective phase-shifting apparatus. The frequency-selective phase-shifting device 10 comprises a transmission module 20 and a plurality of phase-shifting units (not shown) arranged side by side, wherein any one of the phase-shifting units is selected by the transmission module 20, and the transmission module 20 drives the selected phase-shifting unit to move so as to implement the phase-shifting operation.
The transmission module 20 comprises two clutch parts which have meshing teeth and via which torque is transmitted, the two clutch parts meshing with one another with the meshing teeth of one another to effect the transmission of torque. The two clutch components are divided into a first clutch component 30 and a second clutch component 40, the second clutch component 40 is fixed at one position, the first clutch component 30 is not fixed at one position, the first clutch component 30 can be engaged with the second clutch component 40 through movement, and the first clutch component 30 can also be separated from the second clutch component 40 through movement, so that the clutch movement between the two clutch components is realized.
Specifically, referring to fig. 1 and 2, the engaging tooth 31 of the first clutch member 30 has two end portions 311, and the end portions 31 have a polygonal pyramid structure having a common conical point 3111 and at least three edges 3112 converging at the common conical point 3111, that is, the end portions 311 have a pyramid structure having at least three edges 3112. The common taper point 3111 of the end portions 311 protrudes from the end portions 311, and when the first clutch member 30 cuts into the second clutch member 40 to engage with the second clutch member 40, the common taper point 3111 of the end portions 311 of the engaging teeth 31 of the first clutch member 30 first comes into contact with the end portions 311 of the engaging teeth 31 of the second clutch member 40. Preferably, the end of the meshing teeth of the first clutch member 30 is in a triangular prism structure, a rectangular pyramid structure, a pentagonal pyramid structure or a hexagonal pyramid structure.
In an exemplary embodiment of the present invention, referring to fig. 1 and 2, the end 311 of the meshing teeth 31 of the first clutch member 30 has a triangular pyramid structure or a rectangular pyramid structure. The triangular pyramid structure described in connection with fig. 1 is composed of three facets 3113 and a common pyramid point 3111 common to the three facets 3113. Referring to fig. 2, the rectangular pyramid structure is composed of four facets 3113 and a common conical point 3111 common to the four facets 3113.
The engaging tooth 41 of the second clutch member 40 has two end portions 411, the end portion 411 of the engaging tooth 41 of the second clutch member 40 is provided with at least one flat surface 4111, when the first clutch member 30 is cut into the second clutch member 40 to engage with the second clutch member 40, the common conical point 3111 of the end portion 311 of the engaging tooth 31 of the first clutch member 30 is firstly contacted with the flat surface 4111 of the end portion 411 of the engaging tooth 41 of the second clutch member 40, and the common conical point 3111 of the end portion 311 of the engaging tooth 31 of the first clutch member 30 and the flat surface 4111 of the end portion 411 of the engaging tooth 41 of the second clutch member 40 form a point-surface contact relationship.
The end portion 411 of the meshing tooth 41 of the second clutch member 40 is formed by a plurality of flat surfaces 4111, and the plurality of flat surfaces 4111 have a common conical point, so that the end portion 411 forms a polygonal pyramid structure. Preferably, the end 411 of the engaging tooth 41 of the first clutch member 30 has a triangular prism structure, a rectangular pyramid structure, a pentagonal pyramid structure, or a hexagonal pyramid structure.
In the exemplary embodiment of the present invention, the end 411 of the meshing tooth 41 of the second clutch member 40 has a triangular pyramid or rectangular pyramid structure, and the triangular pyramid structure is composed of three facets and a common pyramid point common to the three facets. The rectangular pyramid structure is composed of four edge surfaces and a common pyramid point shared by the four edge surfaces.
In one embodiment, the end 411 of the meshing tooth 41 of the second clutch member 40 is provided with two flat surfaces 4111, and the two flat surfaces 4111 share the same edge, that is, the end of the second clutch member 40 does not have a common conical point.
Two adjacent meshing teeth 41 on the second clutch component 40 are arranged in a staggered manner, that is, the plurality of meshing teeth 41 on the second clutch component 40 are divided into two rows, the meshing teeth on the same row are in a symmetrical structure about the same arrangement line, the first row of meshing teeth are arranged along the first row of wiring, the second row of meshing teeth are arranged along the second row of wiring, the first row of wiring and the second row of wiring are parallel to each other but not overlapped, and the first row of gears and the second row of gears are arranged at intervals, so that two adjacent meshing teeth 41 on the second clutch component 40 are arranged in a staggered manner.
The plurality of engaging teeth 41 on the second clutch member 40 are arranged in a staggered manner, when the first clutch member 30 and the second clutch member 40 are cut into each other, the engaging tooth 41 of the second clutch member 40 which is firstly contacted with the first clutch member 30 is referred to as a second engaging tooth 42, two adjacent engaging teeth of the second engaging tooth 42 are referred to as adjacent teeth 43, and the engaging tooth of the first clutch member 30 which is contacted with the second engaging tooth 42 is referred to as a first engaging tooth 32. The two adjacent teeth 43 and the second engaging tooth 42 are arranged in a staggered manner, so that the two adjacent teeth 43 do not interfere with the interference between the first engaging tooth 32 and the second engaging tooth 42.
The plurality of engaging teeth 31 of the first clutch member 30 are arranged along a same line, and the engaging teeth 31 of the same row are symmetrical with respect to the same line.
In one embodiment, the plurality of engaging teeth 41 on the second clutch member 40 are arranged along a same line, and the engaging teeth 41 in the same row are symmetrical with respect to the same line. The plurality of teeth 31 on the first clutch partner 30 are offset.
In an exemplary embodiment of the present invention, referring to fig. 3, 4, 5 and 8, the first clutch member 30 is a gear 50, the second clutch member 40 is a phase shift rack 51 corresponding to the phase shift member, and the phase shift rack 51 is used for transmitting torque to the corresponding phase shift member to shift the phase of the phase shift member. The frequency-selecting phase-shifting device 10 is provided with a plurality of phase-shifting racks 51, the plurality of phase-shifting racks 51 are arranged side by side, and the gear 50 moves linearly along the arrangement direction of the phase-shifting racks 51 to be meshed with any one phase-shifting rack 51.
Specifically, when the gear 50 linearly moves in the arrangement direction of the plurality of phase shift racks 51 to be tangent to the selected phase shift rack 51, the taper point 3111 of the end portion (first end portion 321) of the meshing tooth (first meshing tooth 32) of the gear 50 which first contacts the phase shift rack 51 is in contact with one of the flat surfaces (second flat surface 4211) of the end portion (second end portion 421) of the meshing tooth (second meshing tooth 42) of the phase shift rack 51, so that the taper point 3111 of the first end portion 321 and the second flat surface 4211 of the second end portion 421 are in point-surface contact relationship.
When the gear 50 and the phase shift rack 51 are cut into each other, the taper point 3111 of the first end portion 321 of the first tooth 32 and the second flat surface 4211 of the second end portion 421 of the second tooth 42 are in a point-surface contact relationship, and the plurality of ridges 3113 forming the first end portion 321 and the second flat surface 4211 are disposed at an angle.
With reference to fig. 5, this fig. 5 shows a cross-sectional view when the gear 50 and the phase shift rack 51 are cut into each other, the common taper point 3111 of the first end portion 321 of the first engaging tooth 32 and the second flat surface 4211 of the second end portion 421 of the second engaging tooth 42 form a point-surface relationship, the slope of the two edge surfaces 3113 of the first end portion 321 is different from the slope of the second flat surface 4211 of the second end portion 421, so that a clearance angle is formed between the first end portion 321 and the second end portion 421, and the first engaging tooth 32 has a space for further rotation, so that the gear 50 and the phase shift rack 51 can be further engaged, and the gear 50 and the phase shift rack 51 cannot be mutually locked due to the mutual abutting of the first end portion 321 and the second end portion 421.
Moreover, the plurality of engaging teeth of the phase shift rack 51 are arranged in a staggered manner, and the plurality of engaging teeth of the gear 50 are arranged along the same arrangement line, so that two adjacent engaging teeth 31 of the first engaging tooth 32 do not interfere with two adjacent teeth 43 of the second engaging tooth 42, and the two adjacent teeth 43 of the second engaging tooth 42 do not affect the engagement between the first engaging tooth 32 and the second engaging tooth 42.
In one embodiment, referring to fig. 6 and 7, the first clutch member 30 is a gear (referred to as a first gear 60), the second clutch member 40 is also a gear (referred to as a second gear 61), the frequency-selective phase-shifting device 10 is further provided with a plurality of phase-shifting racks 51, the first gear 60 is meshed with the second gear 61, and the second gear 61 is further meshed with any one of the phase-shifting racks 51 to drive the phase-shifting racks 51 to move, and the phase-shifting members are driven to move by the phase-shifting racks 51 to implement phase shifting. The relationship between the second gear 61 and the phase shift rack 51 may also be the relationship between the gear and the phase shift rack 51 between the exemplary embodiments.
Specifically, when the first gear 60 is linearly movable to be cut into the second gear 61, the common conical point 3111 of the first end portion 321 of the first meshing tooth 32 of the first gear 60 is brought into contact with the second flat surface 4211 of the second end portion 421 of the second gear 61, so that the common conical point 3111 of the first end portion 321 and the second flat surface 4211 of the second end portion 421 constitute a point-surface contact relationship.
When the first gear 60 and the first gear 60 are cut into each other and the conoid point 3111 of the first end portion 321 of the first tooth 32 and the second flat surface 4211 of the second end portion 421 of the second tooth 42 are in a point-surface contact relationship, the plurality of ridges 3113 constituting the first end portion 321 and the second flat surface 4211 are disposed at an angle.
With reference to fig. 7, this fig. 7 shows a cross-sectional view when the first gear 60 and the second gear 61 are cut into each other, the common conical point 3111 of the first end portion 321 of the first tooth system 32 and the second flat surface 4211 of the second end portion 421 of the second tooth system 42 form a point-surface relationship, the slope of the two edge surfaces 3113 of the first end portion 321 is different from the slope of the second flat surface 4211 of the second end portion 421, so that a clearance included angle is formed between the first end portion 321 and the second end portion 421, and the first tooth system 32 has a space for further rotation, so that the first gear 60 and the second gear 61 can be further engaged, and the first gear 60 and the second gear 61 are not jammed with each other due to the first end portion 321 and the second end portion 421 abutting against each other.
In another embodiment, referring to fig. 8, the first clutch member 30 is a gear, the second clutch member 40 is a gear, and the first clutch member 30 and the second clutch member 40 cooperate to transmit torque to a selected phase shifting member, i.e., the first clutch member 30 and the second clutch member 40 are not directly engaged with the phase shifting rack 51. The process of cutting into the first clutch component 30 and the second clutch component 40 is not repeated for brevity, as described in the previous embodiment.
Specifically, the second clutch member 40 is adapted to receive the torque to control the screw-nut mechanism in the transmission module 20 such that the nut in the screw-nut mechanism is aligned with one of the phase shift members.
In one embodiment, two mutually cooperating engaging teeth of the frequency-selective phase-shifting device 10 can be provided in the form of the first clutch member 30 and the second clutch member 40, so as to be able to be engaged with each other without being locked to each other, thereby disabling the frequency-selective phase-shifting device 10.
The invention also provides a multi-frequency antenna which comprises a plurality of phase-shifting parts corresponding to a plurality of frequency bands, and each phase-shifting part is in linkage arrangement with the transmission module of the frequency-selecting phase-shifting device.
To sum up, when the first clutch part and the second clutch part are mutually cut in, the common conical point of the first end part of the first meshing tooth of the first clutch part and the second flat surface of the second end part of the second meshing tooth of the second clutch part form a point-surface contact relation, so that the slope of each prismatic surface of the first end part is different from that of the second flat surface, an avoiding included angle is formed between each prismatic surface and the second flat surface, and the first meshing tooth can move further to be meshed with the second meshing tooth.
The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention according to the present invention is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is possible without departing from the scope of the invention as defined by the appended claims. For example, the above features and (but not limited to) features having similar functions of the present invention are mutually replaced to form the technical solution.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims (10)
1. The utility model provides a frequency-selecting phase-shifting device, includes a plurality of phase shifting parts and the transmission module that sets up side by side, its characterized in that:
the transmission module comprises two clutch parts, the two clutch parts are mutually meshed with each other through meshing teeth to realize torque transmission, one of the phase-shifting parts is selected to receive the torque, or the torque is transmitted to the selected phase-shifting part;
the end part of the meshing teeth of the first clutch component is of a polygonal pyramid structure, and the polygonal pyramid structure is provided with a common cone point and at least three ridges converged at the common cone point; the end part of the meshing tooth of the second clutch component is provided with at least one flat surface;
when the two clutch components cut into each other in the process of meshing with each other, the common conical point of the first clutch component and the flat surface of the second clutch component form point-surface contact.
2. The frequency-selective phase-shifting apparatus according to claim 1, wherein the first clutch member is a gear, and the second clutch member is a plurality of phase-shifting racks provided corresponding to a plurality of said phase-shifting members, each of the phase-shifting racks being adapted to transmit said torque to its corresponding phase-shifting member.
3. The frequency-selective phase-shifting apparatus according to claim 1, wherein the first clutch member and the second clutch member are each a gear, and the second clutch member is adapted to engage any one of a plurality of phase-shifting racks provided corresponding to the plurality of phase-shifting members, each of the phase-shifting racks being adapted to transmit the torque to its corresponding phase-shifting member.
4. The frequency-selective phase shifting apparatus of claim 1, wherein the first clutch member and the second clutch member are each gears, and the second clutch member is adapted to receive the torque to control the screw-nut mechanism of the transmission module such that the nut of the screw-nut mechanism is aligned with one of the phase shifting members.
5. The frequency-selective phase shifting apparatus according to any one of claims 1 to 4, wherein two adjacent meshing teeth of one of the clutch members are disposed alternately with each other, and a plurality of meshing teeth of the other clutch member are disposed side by side.
6. The frequency-selective phase shifting apparatus according to any one of claims 1 to 4, wherein when the co-conical point of the first clutch member is in point-to-surface contact with the flat surface of the second clutch member, a plurality of ridge surfaces of the first clutch member constituting the end portions of the meshing teeth are disposed at an angle to the flat surface.
7. The frequency-selective phase shifting device according to any one of claims 1 to 4, wherein the end portion of the gear teeth of the second clutch member is provided with a plurality of flat surfaces, and the plurality of flat surfaces enclose a polygonal pyramid structure having at least three ridges and a common cone point.
8. The frequency-selective phase shifting apparatus of any one of claims 1 to 4, wherein the ends of the teeth of the second clutch member are provided with two flat surfaces which share a common edge.
9. The frequency-selective phase-shifting device according to any one of claims 1 to 4, wherein the end portions of the meshing teeth of the first clutch member and/or the second clutch member are of a triangular pyramid or a rectangular pyramid structure.
10. A multi-frequency antenna comprising a plurality of phase shifting units corresponding to a plurality of frequency bands, characterized in that it comprises the frequency-selective phase shifting module according to any one of claims 1 to 9, each of the phase shifting units has a phase shifting component corresponding to one of the frequency-selective phase shifting modules and is linked with the phase shifting component.
Priority Applications (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002130431A (en) * | 2000-10-18 | 2002-05-09 | Alpine Electronics Inc | Power transmission device |
| CN111129770A (en) * | 2019-12-31 | 2020-05-08 | 京信通信技术(广州)有限公司 | Antenna, transmission device and transmission mechanism |
| CN113904074A (en) * | 2021-09-30 | 2022-01-07 | 京信通信技术(广州)有限公司 | Frequency-selecting phase-shifting module, electric tuning control device and multi-frequency antenna |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002130431A (en) * | 2000-10-18 | 2002-05-09 | Alpine Electronics Inc | Power transmission device |
| CN111129770A (en) * | 2019-12-31 | 2020-05-08 | 京信通信技术(广州)有限公司 | Antenna, transmission device and transmission mechanism |
| CN113904074A (en) * | 2021-09-30 | 2022-01-07 | 京信通信技术(广州)有限公司 | Frequency-selecting phase-shifting module, electric tuning control device and multi-frequency antenna |
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