Phase-shift control device and multi-frequency antenna

Abstract

The application provides a phase-shifting control device and a multi-frequency antenna. The phase-shifting control device comprises a bracket, a phase-shifting rack and a rack control assembly. The bracket is provided with a rack running channel for restricting the running of the phase-shifting rack. The rack control assembly is configured to move along the transverse direction of the phase-shifting rack. One side of the rack running channel is provided with a clutch for locking or unlocking the phase-shifting rack. The rack control assembly is provided with a clutch control corresponding to the clutch and a phase-shifting gear corresponding to the phase-shifting rack. The phase-shifting gear is engaged with the phase-shifting rack when the clutch control abuts against the clutch to unlock the phase-shifting rack. The phase-shifting control device can lock the phase-shifting rack through the clutch, so that the phase-shifting rack cannot shake or vibrate under the action of external force and the phase is changed by movement. The phase-shifting control device can also unlock the phase-shifting rack through the clutch control abutting against the clutch.

Description

Technical Field

[0001] This invention belongs to the field of mobile communication technology, specifically relating to a phase shift control device and a multi-frequency antenna configured with the phase shift control device. Background Technology

[0002] With the continuous increase in the number of mobile communication terminal users and the popularization of 5G, the demand for network capacity in mobile cellular networks is increasing. At the same time, it is necessary to minimize interference between different sites and even between different sectors of the same site, that is, to maximize network capacity and minimize interference. To achieve this goal, the antenna beam downtilt angle at the site is usually adjusted.

[0003] When the antenna is a multi-band antenna, the beam downtilt angle is mainly adjusted by mechanical downtilt. Specifically, a transmission device is built into the antenna. This transmission device connects to the phase shifting components corresponding to each frequency band in the multi-band antenna through multiple phase shifting racks. After the transmission device meshes with any one of the phase shifting racks through a phase shifting gear, rotating the phase shifting gear can drive the phase shifting rack to control the movement of the phase shifting component of its corresponding frequency band, thereby performing the phase shifting operation.

[0004] However, this method requires the phase-shifting gear to move back and forth linearly within the transmission device to engage with any one of the phase-shifting racks. Since the phase-shifting gear moves mechanically, it vibrates violently during engagement with the racks, affecting the phase-shifting effect and consequently the accuracy of the antenna beam tilt adjustment. Alternatively, other phase-shifting racks not engaged with the gears may shift position due to vibrations in the transmission device, causing the phase-shifting components to shift phase under the racks' influence, affecting the phase stability of each frequency band of the multi-band antenna. Especially when a single transmission device controls phase shifting across dozens of frequency bands, the development of precise phase shifting and phase stability, ensuring structural stability during the phase shifting process, is of paramount importance. Summary of the Invention

[0005] The purpose of this invention is to solve at least one of the above-mentioned problems by providing a phase-shifting control device and a multi-frequency antenna.

[0006] To meet the various objectives of this invention, the following technical solutions are adopted:

[0007] To meet one of the objectives of this invention, a phase-shifting control device is provided, comprising a bracket, a phase-shifting rack, and a rack control assembly. The bracket has a rack running channel for constraining the operation of the phase-shifting rack. The rack control assembly is configured to move laterally along the phase-shifting rack. A clutch for locking or unlocking the phase-shifting rack is provided on one side of the rack running channel. The rack control assembly has a clutch engagement control corresponding to the clutch and a phase-shifting gear corresponding to the phase-shifting rack. The phase-shifting gear engages with the phase-shifting rack while the clutch engagement control abuts against the clutch to unlock the phase-shifting rack.

[0008] Furthermore, the clutch includes a clutch element and an elastic element. The elastic element provides a locking force to the clutch element so that the clutch element engages with the phase-shifting rack. The clutch control abuts against the clutch to compress the elastic element, thereby separating the clutch element from the phase-shifting rack.

[0009] Furthermore, the bracket has a fixing part corresponding to the phase-shifting rack, and the clutch is disposed in the receiving cavity of the fixing part. The receiving cavity has a first opening corresponding to the clutch member, and the first opening faces the rack running channel.

[0010] Furthermore, the clutch component is provided with a locking structure corresponding to the phase-shifting rack, and the locking structure is used to extend into the tooth groove of the phase-shifting rack through the first opening.

[0011] Furthermore, the locking structure includes two locking teeth and a first connecting portion disposed between the two locking teeth. The locking teeth are used to extend into the tooth grooves of the phase-shifting rack to lock the phase-shifting rack.

[0012] Specifically, the locking tooth is triangular pyramidal in shape, and the first connecting part is platform-shaped.

[0013] Furthermore, the clutch component has an unlocking structure corresponding to the clutch control, and the receiving cavity has a second opening corresponding to the unlocking structure. The clutch control is used to abut against the unlocking structure to compress the elastic element disposed on one side of the clutch.

[0014] Furthermore, the locking structure and the unlocking structure are spaced apart to form a first gap groove between them, the fixing part forms a second gap groove corresponding to the first gap groove, and the clutch control is adapted to extend into the second gap groove and abut against the unlocking structure.

[0015] Specifically, the unlocking structure is in the shape of a triangular pyramid, and the clutch control includes a clutch structure that abuts against the unlocking structure, the clutch structure being in the shape of a boss.

[0016] Furthermore, the phase-shifting rack includes a plurality of phase-shifting teeth arranged along its extension direction, and each phase-shifting tooth includes two mating teeth and a second connecting portion connecting the two locking teeth.

[0017] Specifically, the mating teeth are triangular pyramidal in shape, and the second connecting part is platform-shaped.

[0018] Specifically, the rack running channel is groove-shaped, and the sliding channel passes through the fixing part.

[0019] In one embodiment, the phase-shifting control device includes a plurality of phase-shifting racks, which are arranged side by side in sequence along the transverse direction of the phase-shifting racks to form two rows of phase-shifting racks. The two rows of phase-shifting racks are arranged in an alternating manner towards each other, and a clutch is provided for each phase-shifting rack.

[0020] Furthermore, the rack and pinion control assembly also includes a housing, in which the phase-shifting gear is disposed. The housing has two openings corresponding to the two rows of phase-shifting racks, and some of the external teeth of the phase-shifting gear are exposed to the outside through the two openings so as to mesh with any one of the phase-shifting racks in any row. The clutch control is disposed on the housing.

[0021] Furthermore, the phase-shifting control device includes two rack control components arranged side by side, which are configured such that when one rack control component engages with a phase-shifting rack, the other rack control component does not engage with either phase-shifting rack.

[0022] Furthermore, the phase-shifting control device also includes a drive shaft and a drive screw. The housing is also provided with a selection screw hole. The selection screw hole is sleeved on the drive screw through its threaded hole to form a screw mechanism. Rotating the drive screw drives the rack control assembly to run linearly and mesh with any one of the phase-shifting racks. The phase-shifting gear is sleeved on the drive shaft through its gear hole, driving the drive shaft and driving the meshed phase-shifting rack to move.

[0023] To meet one of the objectives of this invention, a multi-frequency antenna is provided, comprising multiple phase-shifting components corresponding to multiple frequency bands, including a phase-shifting control device as described in any of the preceding objectives, wherein each of the phase-shifting components has a corresponding phase-shifting rack in the phase-shifting control device and is linked thereto.

[0024] Compared with existing technologies, the present invention has many advantages, including but not limited to:

[0025] On the one hand, the phase shift control device of the present invention can lock the phase shift rack by a clutch, so that the phase shift rack will not move under external vibration, and the phase shift rack is fixed in a predetermined position, so that the phase shifting component connected to the phase shift rack can stably carry out phase shifting without fluctuation during the phase shifting process, which would result in poor phase shifting quality.

[0026] On the other hand, the phase shift control device of the present invention can abut the clutch through the clutch control, so that the clutch can unlock the phase shift rack. After unlocking, the phase shift rack can mesh with the phase shift gear. Driven by the phase shift gear, the phase shift rack moves, and the phase shift component moves through the phase shift rack to implement phase shift. The phase shift method is simple, and after the phase shift is completed, the phase shift rack can be locked by the clutch so that the phase shift rack maintains a predetermined position to continuously and stably implement phase shift.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0029] Figure 1 This is a schematic diagram of the phase-shifting control device according to a typical embodiment of the present invention, when a frame plate is provided.

[0030] Figure 2 This is a partial structural schematic diagram of the frame of the phase-shifting control device according to a typical embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the phase-shifting control device according to a typical embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram of the clutch structure of a phase-shifting control device according to a typical embodiment of the present invention.

[0033] Figure 5 This is a schematic diagram of the phase-shifting rack of a phase-shifting control device according to a typical embodiment of the present invention.

[0034] Figure 6 for Figure 5 An enlarged view of part B.

[0035] Figure 7 for Figure 1 A schematic diagram of its cross-section.

[0036] Figure 8 for Figure 7 An enlarged view of part A.

[0037] Figure 9This is a schematic diagram of the rack and pinion control assembly of a phase-shifting control device according to a typical embodiment of the present invention.

[0038] Figure 10 This is a schematic diagram of the frame plate and clutch of the phase-shifting control device according to a typical embodiment of the present invention. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0040] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, nor does it exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0041] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0042] The present invention provides a phase shift control device, which can lock the phase shift rack by a clutch so that the phase shift rack will not shake or vibrate under the action of external force and thus change the phase; and the phase shift control device can also abut the clutch by a clutch control so that the clutch unlocks the phase shift rack so that the phase shift gear meshes with the phase shift rack and drives the phase shift rack to move, thereby implementing phase shift.

[0043] In a typical embodiment of the present invention, combined with Figure 1The phase-shifting control device 100 includes a bracket 110, multiple phase-shifting racks 120, a clutch 130, and a rack control assembly 140.

[0044] The phase-shifting rack 120 is connected to the phase-shifting component of the antenna. The phase-shifting rack 120 moves linearly to pull the phase-shifting component to move, so that the phase-shifting component shifts the phase of the signal fed into it. A plurality of phase-shifting teeth 121 are provided on one side of the phase-shifting rack 120, and one end of the phase-shifting rack 120 is connected to the phase-shifting component.

[0045] The bracket 110 supports the phase-shifting rack 120, the clutch 130, and the rack control assembly 140. Figure 2 The bracket 110 has a rack running channel 111 for the phase-shifting rack 120. The phase-shifting rack 120 moves linearly along the rack running channel 111 to stably drive the phase-shifting component to move and implement phase shifting. Furthermore, the rack running channel 111 also constrains the movement of the phase-shifting rack 120 to prevent deviations in its movement direction, which could hinder proper phase shifting.

[0046] In this embodiment, the rack running channel 111 is groove-shaped to accommodate the phase-shifting rack 120 and constrain its operation. The phase-shifting control device 100 provides one rack running channel 111 for each phase-shifting rack 120. Figure 3 The support 110 is composed of two support plates 112. The support plates 112 are provided with rack running channels 111 to facilitate the arrangement of the phase shifting racks 120 on the support plates 112.

[0047] The phase-shifting control device 100 is equipped with a clutch 130 for each phase-shifting rack 120. The clutch 130 is located on one side of the rack running channel 111 and is used to lock the phase-shifting rack 120 so that the phase-shifting rack 120 cannot move. Alternatively, the clutch 130 can unlock the phase-shifting rack 120 under the action of the rack control component 140, so that the phase-shifting rack 120 can move along the phase-shifting running channel to facilitate phase shifting.

[0048] Combination Figure 2 The frame plate 112 is provided with a fixing part 113 corresponding to the clutch 130. The fixing part 113 protrudes from the frame plate 112 and is located above the rack running channel 111. The rack running channel 111 passes through the fixing part 113. The fixing part 113 is provided with a receiving cavity 1131. The clutch 130 is located in the receiving cavity 1131. The receiving cavity 1131 is provided with an opening facing the rack running channel 111 corresponding to the clutch 130, so as to allow the clutch 130 to lock or unlock the phase shift rack 120.

[0049] Specifically, in combination Figure 4 The clutch 130 includes a clutch element 132 and an elastic element 131, which are disposed in the receiving cavity 1131. The elastic element 131 is disposed at one end of the clutch element 132 and is located away from the corresponding rack running channel 111 relative to the clutch element 132. The elastic element 131 is used to apply a locking force to the clutch element 132 in its natural state, causing the clutch element 132 to move towards the rack running channel 111 under the locking force applied by the elastic element 131, thereby locking the phase-shifting rack 120 disposed in the rack running channel 111. Preferably, the elastic element 131 is a spring plate, and the spring plate is arched.

[0050] In one embodiment, a plurality of elastic elements 131 may be provided in the accommodating cavity 1131, and the plurality of elastic elements 131 form an elastic group to improve the strength of the elastic force, reduce the degree of use damage of each elastic element 131, and extend the service life.

[0051] Furthermore, the clutch 132 includes a main body 1321 and a locking structure 1322 disposed on the main body 1321. The main body 1321 has a mounting surface 1323, and the elastic member 131 is disposed on the mounting surface 1323. Under the constraint of the receiving cavity 1131, the elastic member 131 cannot leave the receiving cavity 1131 by passing over the clutch 132. The locking structure 1322 is used to extend into the tooth groove 122 between two adjacent phase shifting teeth 121 of the phase shifting rack 120, so that the phase shifting rack 120 cannot move linearly along the rack running channel 111, thereby locking the phase shifting rack 120. The accommodating cavity 1131 of the fixing part 113 is provided with a first opening (not shown) corresponding to the locking structure 1322. The first opening faces the rack running channel 111 so that after the locking force is applied to the clutch 132 in the natural state of the elastic member 131, the locking structure 1322 of the clutch 132 can extend into the tooth groove 122 of the phase-shifting rack 120 provided in the rack running channel 111 through the first opening to lock the phase-shifting rack 120.

[0052] After the phase-shifting rack 120 is locked by the locking structure 1322 of the clutch 132, the phase-shifting rack 120 can maintain its position relative to the rack running channel 111, thereby maintaining the positional relationship between the phase-shifting rack 120 and the corresponding phase-shifting component, so that the phase-shifting component can stably perform phase shifting. That is to say, under the limitation of the locking structure 1322, the phase-shifting rack 120 can be relatively fixed at a predetermined position in the rack running channel 111, so that the phase-shifting rack 120 can keep the corresponding phase-shifting component in a predetermined position, so as to facilitate the precise phase shifting of the phase-shifting component. Moreover, under the limitation of the locking structure 1322, the phase-shifting rack 120 will not be moved by external force vibration or shaking, thus causing the phase-shifting component to shift phase.

[0053] In this embodiment, the locking structure 1322 includes two locking teeth 1324 and a first connecting portion 1325 disposed on the two locking teeth 1324. The locking teeth 1324 and the first connecting portion 1325 are disposed on the main body 1321 of the clutch member 132. Specifically, the first connecting portion 1325 is platform-shaped, and the locking teeth 1324 are triangular pyramid-shaped. The locking teeth 1324 protrude relative to the first connecting portion 1325, so that the locking teeth 1324 can extend into the tooth groove 122 of the phase-shifting rack 120, thereby constraining and limiting the phase-shifting rack 120.

[0054] Combination Figure 5 and Figure 6 The phase-shifting teeth 121 of the phase-shifting rack 120 include two mating teeth 1211 and a second connecting portion 1212 connecting the two mating teeth 1211. The second connecting portion 1212 is platform-shaped, and the mating teeth 1211 are also triangular pyramid-shaped, with the mating teeth 1211 protruding relative to the second connecting portion 1212. Two locking teeth 1324 of the locking structure 1322 are correspondingly arranged with the two mating teeth 1211 of the phase-shifting teeth 121. The locking teeth 1324 and the mating teeth 1211 face opposite directions, and the first connecting portion 1325 is also correspondingly arranged with the second connecting portion 1212. Figure 7 and Figure 8 This allows the two locking teeth 1324 of the locking structure 1322 to extend into the groove 122 between the two phase shifting teeth 121 of the phase shifting rack 120, thereby limiting the phase shifting rack 120.

[0055] In one embodiment, the width of the first connecting portion 1325 of the locking structure 1322 is less than or equal to the width between two adjacent phase shifting teeth 121 of the phase shifting rack 120, so that the locking structure 1322 can be inserted into the tooth groove 122 of the phase shifting rack 120 to stably lock and limit the phase shifting rack 120.

[0056] In a typical embodiment of the present invention, combined with Figure 9The rack and pinion control assembly 140 includes a clutch control 141, a housing 142, and a phase-shifting gear 143. The clutch control 141 is disposed on one side of the housing 142, and the phase-shifting gear 143 is disposed in the housing 142. The housing 142 has a third opening 1421 corresponding to the rack running channel 111, so that the outer teeth of the phase-shifting gear 143 are exposed to the outside through the third opening 1421. The phase-shifting gear 143 is used to mesh with the phase-shifting rack 120, driving the phase-shifting rack 120 to move linearly along the rack running channel 111, so as to drive the phase-shifting component to perform phase shifting.

[0057] The clutch control 141 is used to abut the clutch member 132, causing the clutch member 132 to move toward the position of the elastic member 131. The clutch member 132 compresses the elastic member 131, causing the locking structure 1322 of the clutch member 132 to move out of the tooth groove 122 of the phase shifting rack 120, unlocking the phase shifting rack 120, so that the phase shifting gear 143 meshes with the phase shifting rack 120, so that the phase shifting rack 120 can perform phase shifting.

[0058] Combination Figure 4 The clutch 132 further includes an unlocking structure 1326, which is disposed on the main body 1321. The receiving cavity 1131 of the fixing part 113 has a second opening (not shown) corresponding to the unlocking structure 1326. Figure 10 The unlocking structure 1326 is exposed outside the accommodating cavity 1131 through the second opening.

[0059] Combination Figure 1 , Figure 4 and Figure 9 The clutch control 141 slides along the arrangement direction of the plurality of phase-shifting racks 120 toward the position of the unlocking structure 1326 of the clutch member 132. The clutch control 141 gradually comes into contact with the unlocking structure 1326, so as to gradually push the unlocking structure 1326 against the position of the elastic member 131. This causes the unlocking structure 1326 to drive the mounting surface 1323 of the main body 1321 to apply a force to the elastic member 131, gradually compressing the elastic member 131. At the same time, the main body 1321 also drives the locking structure 1322 to gradually move out of the tooth groove 12 of the phase-shifting rack 120. 2. The phase-shifting gear 143 gradually engages with the rack; finally, the clutch control 141, through the unlocking structure 1326, drives the main body 1321 to fully compress the elastic element 131, and the main body 1321 drives the locking structure 1322 to completely move out of the tooth groove 122 of the phase-shifting rack 120, so that the phase-shifting rack 120 can move freely along the rack running channel 111, and the phase-shifting gear 143 is fully engaged with the phase-shifting rack 120, so that the phase-shifting gear 143 drives the phase-shifting rack 120, and the phase-shifting rack 120 drives the corresponding phase-shifting component to perform phase shifting.

[0060] In this embodiment, combined with Figure 4 The unlocking structure 1326 is in the shape of a triangular pyramid. The unlocking structure 1326 has a first unlocking surface 1327, a transition surface 1329 and a second unlocking surface 1328 in the arrangement direction. The transition surface 1329 connects the first unlocking surface 1327 and the second unlocking surface 1328. The first unlocking surface 1327 and the second unlocking surface 1328 are inclined relative to the transition surface 1329 and are set at an obtuse angle with the transition surface 1329.

[0061] Combination Figure 9 The clutch control 141 includes a clutch structure 144, which is boss-shaped. The clutch structure 144 includes a first clutch surface 1441, a second clutch surface 1442, and a support surface 1443 connecting the two clutch surfaces. The first clutch surface 1441, the support surface 1443, and the second clutch surface 1442 are arranged along the stated arrangement direction. Furthermore, the first clutch surface 1441 and the second clutch surface 1442 are symmetrical about the extension axis of the phase-shifting rack 120.

[0062] Combination Figure 1 , Figure 4 and Figure 9 The rack and pinion control assembly 140 can reciprocate along the arrangement direction. The reciprocating motion of the rack and pinion control assembly 140 is referred to as the first direction motion and the second direction motion. When the rack and pinion control assembly 140 performs the first direction motion, the first engagement surface 1441 of the clutch structure 144 of the clutch control 141 faces the first unlocking surface 1327 of the unlocking structure 1326. The first engagement surface 1441 slides onto the first unlocking surface 1327 to gradually abut against the clutch member 132, driving the clutch member 132 to gradually compress the elastic member 131. This causes the locking structure 1322 to gradually move out of the tooth groove 122 of the phase-shifting rack 120, and the phase-shifting gear 143 gradually meshes with the phase-shifting rack 120 under the drive of the housing 142.

[0063] Subsequently, the rack and pinion control assembly 140 continues to move in the first direction, causing the abutment surface 1443 to contact or face the transition surface 1329. The first clutch structure 144 fully abuts the clutch member 132, causing the clutch member 132 to fully compress the elastic member 131. This causes the locking structure 1322 to completely disengage from the tooth groove 122 of the phase-shifting rack 120, unlocking the phase-shifting rack 120. The phase-shifting gear 143, driven by the housing 142, fully meshes with the phase-shifting rack 120, allowing the phase-shifting gear 143 to drive the phase-shifting rack 120 to move, thereby driving the phase-shifting component to perform phase shifting. The phase-shifting gear 143 can drive the phase-shifting rack 120 to move a predetermined distance, causing the phase-shifting rack 120 to drive the phase-shifting component to move a predetermined distance, thus precisely adjusting the phase of the phase-shifting component.

[0064] After the phase shifting is completed by the phase-shifting rack 120, the rack control assembly 140 continues to perform the first direction movement, causing the abutting surface 1443 of the clutch structure 144 to separate from the transition surface 1329 of the unlocking structure 1326, and the phase-shifting gear 143 gradually disengages from the phase-shifting rack 120. Then, the rack control assembly 140 continues to perform the first direction movement, causing the phase-shifting gear 143 to further disengage from the phase-shifting rack 120, and the second engagement surface 1442 of the clutch structure 144 gradually separates from the second unlocking surface 1328 of the unlocking structure 1326, causing the elastic element 131 to gradually return to its natural state, and the elastic element 131 gradually engages with the clutch element 1326. 2. A force is applied, causing the locking structure 1322 of the clutch 132 to gradually extend into the tooth groove 122 of the phase-shifting rack 120; then, the phase-shifting gear 143 and the phase-shifting rack 120 are completely disengaged, the second engagement surface 1442 and the second unlocking surface 1328 are completely separated, causing the elastic element 131 to completely return to its original state, and the elastic element 131 applies a force to the clutch 132, causing the locking structure 1322 of the clutch 132 to fully extend into the tooth groove 122 of the phase-shifting rack 120, locking and limiting the phase-shifting rack 120, so that the phase-shifting rack 120 and the corresponding phase-shifting component are maintained in a predetermined position, so as to maintain the stability of the signal phase-shifted by the phase-shifting component.

[0065] Alternatively, after the phase shifting is completed by the phase shifting rack 120, the clutch control 141 performs a second directional movement, causing the abutting surface 1443 of the clutch structure 144 to gradually separate from the transition surface 1329 of the unlocking structure 1326, and the phase shifting gear 143 to gradually disengage from the phase shifting rack 120. Then, the first engagement surface 1441 of the clutch structure 144 and the first unlocking surface 1327 of the unlocking structure 1326 gradually separate until they are completely separated, and the phase shifting gear 143 and the phase shifting rack 120 gradually disengage until they are completely disengaged. For details, please refer to the above text. To save space, it will not be repeated here.

[0066] In one embodiment, combined Figure 4 The locking structure 1322 and the unlocking structure 1326 of the clutch 132 are spaced apart, so that a first gap groove 133 is formed between the locking structure 1322 and the unlocking structure 1326. Figure 2 or Figure 10The fixing part 113 of the frame plate 112 forms a second interval groove 1134 corresponding to the first interval groove 133. The second opening is opened in the second interval groove 1134 so that the unlocking structure 1326 of the clutch 132 can extend into the second interval groove 1134. Furthermore, the clutch structure 144 of the clutch control 141 is adapted to extend into the second interval groove 1134 so that the clutch structure 144 abuts against the unlocking structure 1326. The second interval groove 1134 can also assist the operation of the clutch control 141, allowing the clutch control 141 to move along the arrangement direction, and restricting the shaking or vibration of the clutch control 141 through the second interval groove 1134.

[0067] In a typical embodiment of the present invention, combined with Figure 3 The bracket 110 has a roughly elongated rectangular shape. The two plates 112 of the bracket 110 are an upper plate 114 and a lower plate 115, with the reverse side of the upper plate 114 facing the front side 1151 of the lower plate 115. One or more rack running channels 111 can be provided on the upper plate 114 and / or the lower plate 115 to facilitate the installation of multiple phase-shifting racks 120 on the upper plate 114 and / or the lower plate 115. Furthermore, each rack running channel 111 on the upper plate 114 and / or the lower plate 115 is provided with a fixing part 113, and the phase-shifting control device 100 is provided with a clutch 130 corresponding to each rack running channel 111, so that any one of the phase-shifting racks 120 on the upper plate 114 or the lower plate 115 can be moved via the rack control assembly 140 to implement phase shifting.

[0068] The plurality of phase-shifting racks 120 are arranged in two rows for placement on the upper frame 114 and the lower frame 115, respectively. The reverse side of the upper frame 114 is opposite to the front side 1151 of the lower frame 115. The rack running channel 111 of the upper frame 114 is located on the reverse side of the upper frame 114, and the rack running channel 111 of the lower frame 115 is located on the front side 1151 of the lower frame 115. Figure 2 The rack running channel 111 includes two ribs 1111, which protrude towards the opposite upper frame plate 114 or lower frame plate 115 to form a rack running channel 111 protruding from the upper frame plate 114 or lower frame plate 115. The two ribs 1111 of the rack running channel 111 are parallel to each other, and the central axes of the two ribs 1111 are symmetrical about the extension direction of the phase shifting rack 120. However, since the spacing between two adjacent phase shifting racks 120 in the same row is small, in order to facilitate the arrangement of multiple rack running channels 111 in the same row, two adjacent rack running channels 111 in the same row share a rib 1111, so as to save space in the support 110, reduce the volume of the support 110, and facilitate the miniaturization of the phase shifting control device 100.

[0069] Combination Figure 3 The two rows of phase-shifting racks are parallel to each other and are staggered and facing each other. Specifically, the spacing between two adjacent phase-shifting racks 120 in the same row is equal, and the projections of the two rows of phase-shifting racks on the front surface 1151 of the lower frame plate 115 are alternately arranged so that the upper and lower rows of phase-shifting racks are spatially staggered and facing each other. That is to say, the projection of a phase-shifting rack 120 on the upper frame plate 114 on the front surface 1151 of the lower frame plate 115 is adjacent to the projection of a phase-shifting rack 120 or two adjacent phase-shifting racks 120 on the lower frame plate 115, so that the two rows of phase-shifting racks are staggered and facing each other, making the two rows of phase-shifting racks compact and reducing the size of the phase-shifting control device 100.

[0070] Two rows of phase-shifting racks are arranged in an alternating, opposite-facing configuration, such that the phase-shifting gear 143 is configured to mesh with only one phase-shifting rack 120 at any given time. Figure 9 Two clutch controls 141 are provided, namely a first clutch control 146 and a second clutch control 147. The first clutch control 146 cooperates with the phase shifting rack 120 on the upper frame plate 114, and the second clutch control 147 cooperates with the phase shifting rack 120 on the lower frame plate 115. The two clutch controls 141 are symmetrical.

[0071] Combination Figures 1 to 3 The bracket 110 has two rows of rack running channels 111 respectively set on the upper frame plate 114 and the lower frame plate 115 corresponding to the two rows of phase shifting racks. The arrangement relationship of the two rows of rack running channels 111 can be referred to the arrangement relationship of the two rows of phase shifting racks. That is to say, the two rows of rack running channels 111 are arranged alternately and opposite to each other in space.

[0072] Combination Figure 9 The housing 142 also includes a selection screw hole 145 disposed therein, which is used to cooperate with the transmission screw 152 to drive the housing 142 to move linearly along the arrangement direction of the bracket 110, so that the phase shifting gear 143 can alternately mesh with the phase shifting rack 120 on the upper frame plate 114 and the lower frame plate 115. The housing 142 is provided with two third openings 1421 corresponding to the phase shifting rack 120 on the upper frame plate 114 and the lower frame plate 115, so that the external teeth of the phase shifting gear 143 are exposed to the outside through the two third openings 1421, so that the phase shifting gear 143 can mesh with the phase shifting rack 120 on the upper frame plate 114 or the lower frame plate 115.

[0073] Combination Figure 1The phase-shifting control device 100 further includes a drive shaft 151 and a drive screw 152. A selection screw hole 145 is sleeved on the drive screw 152 to form a screw mechanism. Rotating the drive screw 152 drives the housing 142 to move linearly, that is, drives the rack and pinion control assembly 140 to move linearly. The phase-shifting gear 143 is sleeved on the drive shaft 151 through its gear hole. When the selection screw hole 145 drives the housing 142 to move along the arrangement direction, causing the phase-shifting gear 143 to mesh with any one of the phase-shifting racks 120, it drives the drive shaft 151, causing the phase-shifting gear 143 to rotate circumferentially. This rotation drives the phase-shifting rack 120 to move linearly, and the phase-shifting rack 120 drives the connected phase-shifting component to perform phase shifting. Preferably, the gear hole of the phase-shifting gear 143 is a hexagonal hole, and the drive shaft 151 is a hexagonal prism.

[0074] In one embodiment, combined Figure 1 The phase-shifting control device 100 has multiple rack and pinion control assemblies 140 arranged side-by-side along the arrangement direction of the bracket 110. These multiple rack and pinion control assemblies 140 can be linked together via a linkage 153, meaning they can move synchronously. Preferably, the housing 142 has linkage holes, and the linkage 153 is a linkage shaft that passes through the linkage holes in the housing 142 of the multiple rack and pinion control assemblies 140 to link them.

[0075] In a further embodiment, the phase-shifting control device 100 has two rack control components 140, which are configured such that when one rack control component 140 is engaged with a phase-shifting rack 120, the other rack control component 140 is not engaged with either rack control component 140. Alternatively, when one rack control component 140 is engaged with another rack control component 120, the other rack control component 140 is also engaged with either phase-shifting rack 120.

[0076] The present invention also provides a multi-frequency antenna, which includes multiple phase-shifting components corresponding to multiple frequency bands and the phase-shifting control device 100 described above. Each phase-shifting component is connected to a phase-shifting rack 120 of the phase-shifting control device 100. By controlling the movement of the phase-shifting rack 120, the phase-shifting rack 120 drives the phase-shifting component to move, thereby implementing phase shifting.

[0077] In one embodiment, the multi-frequency antenna may be provided with two or more phase shift control devices 100 arranged side by side, and the two or more phase shift control devices 100 share a drive shaft 151 and a drive screw 152 to improve the utilization rate of the multi-frequency antenna.

[0078] In summary, the phase-shifting control device of the present invention locks the phase-shifting rack with a clutch, so that the phase-shifting rack will not change position due to external force when phase shifting is not required, so as to facilitate stable phase shifting; the phase-shifting rack is unlocked by the clutch control abutting against the clutch, so that the phase-shifting gear meshes with the phase-shifting rack, so as to move the phase-shifting rack to perform phase shifting.

[0079] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions as those in the present invention.

[0080] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A phase-shifting control device, comprising a bracket, a phase-shifting rack, and a rack control assembly, characterized in that, The bracket is provided with a rack running channel that constrains the operation of the phase-shifting rack. The rack control component is configured to move laterally along the phase-shifting rack. A clutch for locking or unlocking the phase-shifting rack is provided on one side of the rack running channel. The rack control component is provided with a clutch control corresponding to the clutch and a phase-shifting gear corresponding to the phase-shifting rack. The phase-shifting gear engages with the phase-shifting rack while the clutch control abuts against the clutch to unlock the phase-shifting rack. The clutch includes a clutch element and an elastic element. The elastic element provides a locking force to the clutch element so that the clutch element engages with the phase-shifting rack. The clutch control abuts against the clutch to compress the elastic element, thereby separating the clutch element from the phase-shifting rack. The bracket has a fixing part corresponding to the phase-shifting rack, and the clutch is disposed in the accommodating cavity of the fixing part. The accommodating cavity has a first opening corresponding to the clutch member. The first opening faces the rack running channel. The clutch member has a locking structure corresponding to the phase-shifting rack. The locking structure is used to extend into the tooth groove of the phase-shifting rack through the first opening.

2. The phase-shifting control device as described in claim 1, characterized in that, The locking structure includes two locking teeth and a first connecting portion disposed between the two locking teeth. The locking teeth are used to extend into the tooth grooves of the phase-shifting rack to lock the phase-shifting rack.

3. The phase-shifting control device as described in claim 2, characterized in that, The locking teeth are triangular cone-shaped, and the first connecting part is platform-shaped.

4. The phase-shifting control device as described in claim 1, characterized in that, The clutch component has an unlocking structure corresponding to the clutch control, and the receiving cavity has a second opening corresponding to the unlocking structure. The clutch control is used to abut against the unlocking structure to compress the elastic element disposed on one side of the clutch.

5. The phase-shifting control device as described in claim 4, characterized in that, The locking structure and the unlocking structure are spaced apart to form a first gap groove between them. The fixing part forms a second gap groove corresponding to the first gap groove. The clutch control is adapted to extend into the second gap groove and abut against the unlocking structure.

6. The phase-shifting control device as described in claim 4, characterized in that, The unlocking structure is in the shape of a triangular pyramid, and the clutch control includes a clutch structure that abuts against the unlocking structure, the clutch structure being in the shape of a boss.

7. The phase-shifting control device as described in claim 1, characterized in that, The phase-shifting rack includes a plurality of phase-shifting teeth arranged along its extension direction, and each phase-shifting tooth includes two mating teeth and a second connecting portion connecting the two mating teeth.

8. The phase-shifting control device as described in claim 7, characterized in that, The mating teeth are triangular pyramidal in shape, and the second connecting part is platform-shaped.

9. The phase-shifting control device as described in claim 1, characterized in that, The rack running channel is groove-shaped, and the rack running channel passes through the fixing part.

10. The phase-shifting control device according to any one of claims 1 to 9, characterized in that, The phase-shifting control device includes multiple phase-shifting racks, which are arranged side by side in sequence along the transverse direction of the phase-shifting racks to form two rows of phase-shifting racks. The two rows of phase-shifting racks are arranged in an alternating manner towards each other, and a clutch is provided for each phase-shifting rack.

11. The phase-shifting control device as described in claim 10, characterized in that, The rack and pinion control assembly also includes a housing, in which the phase-shifting gear is disposed. The housing has two openings corresponding to the two rows of phase-shifting racks. Some of the external teeth of the phase-shifting gear are exposed to the outside through the two openings so as to mesh with any one of the phase-shifting racks in any row. The clutch control is disposed on the housing.

12. The phase-shifting control device as described in claim 11, characterized in that, The phase-shifting control device includes two rack control components arranged side by side, which are configured such that when one rack control component is engaged with a phase-shifting rack, the other rack control component is not engaged with either phase-shifting rack.

13. The phase-shifting control device as described in claim 11, characterized in that, The phase-shifting control device also includes a drive shaft and a drive screw. The housing is also provided with a selection screw hole. The selection screw hole is sleeved on the drive screw through its threaded hole to form a screw mechanism. Rotating the drive screw drives the rack control assembly to run linearly and mesh with any one of the phase-shifting racks. The phase-shifting gear is sleeved on the drive shaft through its gear hole, driving the drive shaft and moving the meshed phase-shifting racks.

14. A multi-frequency antenna, comprising multiple phase-shifting components corresponding to multiple frequency bands, characterized in that, It includes the phase-shifting control device as described in any one of claims 1 to 13, wherein each of the phase-shifting components has a corresponding phase-shifting rack in the phase-shifting control device and is linked to it.

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