A cross plate unfolding hinge structure of a multiple folded array antenna and an array antenna

Abstract

The application provides a cross-plate unfolding hinge structure of a multiple folding array antenna and the array antenna, relates to the field of satellites, and comprises a first connecting rod, a second connecting rod, a first female hinge, a second female hinge, a connecting rod locking unit, a first locking unit and a second locking unit. The first connecting rod is provided with a first locking slide, and the end of the first locking slide is provided with a first locking slot. The second connecting rod is provided with a second locking slide, and the end of the second locking slide is provided with a second locking slot. The first end of the first connecting rod is rotationally connected with the first end of the second connecting rod, and a first driving assembly drives the rotation. The first female hinge is rotationally connected with the second end of the first connecting rod, and a second driving member drives the rotation. The second female hinge is rotationally connected with the second end of the second connecting rod, and a third driving member drives the rotation. The connecting rod locking unit is used for connecting the first connecting rod and the second connecting rod. The application has the effect that the antenna array surface can be connected through the unfolding hinge under the multiple folding of a large span.

Description

Technical Field

[0001] This application relates to the field of satellite technology, and in particular to a cross-plate unfolding hinge structure for a multi-fold array antenna and the array antenna. Background Technology

[0002] Satellite deployment hinges are increasingly used in deployable array antennas. Currently, the most mature deployment hinges are single-degree-of-freedom, such as those used in array antennas. However, as satellite antenna apertures become larger, the antenna array needs to be folded multiple times to minimize its size for easy transport by rockets.

[0003] In related technologies, Chinese Patent No. CN112298610A discloses an array antenna and its segmented secondary deployment hinge. This secondary deployment hinge includes a male hinge and a female hinge rotatably connected by a hinge shaft. This segmented secondary deployment hinge can automatically unlock after being locked in place once, achieving secondary deployment and locking. Chinese Patent CN109484677B discloses an array antenna deployment mechanism and installation method for microsatellites, including a female base, a male base, a rotating shaft, a T-shaped anti-cold solder pad, a single-line washer, a left-hand torsion spring, a right-hand torsion spring, a compression spring, a locking shaft, and a locking nut. The deployment mechanism is characterized by its simple installation method, high reliability, small size and weight, and ability to provide array antenna deployment at any angle from 0° to 180°, which can greatly increase the antenna coverage area of ​​microsatellite arrays.

[0004] However, compared with the existing technologies mentioned above, it is difficult to adapt to the small-span unfolding hinge structure when facing the multiple folding structure of the antenna array. Summary of the Invention

[0005] To enable antenna arrays to be connected by unfolding hinges over large spans, this application provides a cross-plate unfolding hinge structure for a multi-fold array antenna and the array antenna itself.

[0006] To solve the above problems, the technical solution of this invention application is as follows: A multi-fold array antenna cross-plate unfolding hinge structure includes a first link, a first locking slide on the first link, and a first locking slot at the end of the first locking slide. The second link has a second locking slide, and the end of the second locking slide has a second locking groove; the first end of the first link is rotatably connected to the first end of the second link, and the first link and the second link are driven by the first drive assembly to rotate relative to each other from a preset retracted state to a preset unfolded state; The first female hinge is used to connect to the external antenna unit mounting surface. The first female hinge is rotatably connected to the second end of the first connecting rod and is driven to rotate by the second driving member. The first female hinge is provided with a first locking unit. The first locking unit is slidably connected to the first locking slide and engaged in the first locking slot. The guide trajectory direction of the first locking slide is opposite to the rotation direction of the first connecting rod. The second female hinge is used to connect the external cross-panel antenna unit mounting surface. The second female hinge is rotatably connected to the second end of the second connecting rod and is driven to rotate by the third driving member. The second female hinge is provided with a second locking unit, which is slidably connected to the second locking slide and engaged in the second locking slot. The guide trajectory direction of the second locking slide is opposite to the rotation direction of the second connecting rod. The linkage locking unit includes corresponding latching and locking components, which are respectively disposed on the first female hinge and the second female hinge, and are used to lock the first linkage and the second linkage in the preset unfolded state.

[0007] The multi-fold array antenna of the present invention has a cross-plate unfolding hinge structure in which the main drive shaft axis between the first link and the second link, the rotation axis between the first female hinge and the first link, and the rotation axis between the second female hinge and the second link are parallel to each other.

[0008] The multi-fold array antenna of the present invention has a cross-plate unfolding hinge structure, wherein the first driving component is a driving torsion spring; the driving torsion spring passes through the main driving shaft between the first connecting rod and the second connecting rod, and the two torsion arms of the driving torsion spring are respectively fixed to the first connecting rod and the second connecting rod.

[0009] The multi-fold array antenna of the present invention has a cross-plate unfolding hinge structure, wherein the first connecting rod includes a first main body rod and a first arc-shaped plate; and the second connecting rod includes a second main body rod and a second arc-shaped plate. The first end of the first main body rod is rotatably connected to the first end of the second main body rod via the main drive shaft. The second end of the first main body rod is fixed to the first arc-shaped plate, and the second end of the second main body rod is fixed to the second arc-shaped plate. The arc-shaped surface of the first arc-shaped plate forms the first locking slide, and the arc-shaped surface of the second arc-shaped plate forms the second locking slide. The first locking slide and the second locking slide are arranged opposite to each other in a preset unfolded position. The first female hinge component includes a first connecting block and a first connecting plate, and the second female hinge component includes a second connecting block and a second connecting plate; The first connecting block is rotatably connected to the second end of the first main body rod, and the first connecting plate is fixed to the first connecting block for connecting the external antenna unit mounting surface; the second connecting block is rotatably connected to the second end of the second main body rod, and the second connecting plate is fixed to the second connecting block for connecting the cross-plate external antenna unit mounting surface; The first locking slot is located at the connection between the first arc-shaped plate and the first main body rod, and the second locking slot is located at the connection between the second arc-shaped plate and the second main body rod.

[0010] The multi-fold array antenna of the present invention has a cross-plate unfolding hinge structure, wherein the first locking unit is a first rotating swing arm, the second locking unit is a second rotating swing arm, the first power component is a first locking torsion spring, and the second power component is a second locking torsion spring; The first rotating rocker arm is rotatably connected to the first connecting block, and the rotation axis of the first rotating rocker arm is parallel to the axis of the main drive shaft; the first locking torsion spring passes through the rotating shaft of the first rotating rocker arm, and one torsion arm is disposed on the first connecting block, and the other torsion arm is disposed on the first rotating rocker arm; The second rotating rocker arm is rotatably connected to the second connecting block, and the rotation axis of the second rotating rocker arm is parallel to the axis of the main drive shaft; the second locking torsion spring passes through the rotating shaft of the second rotating rocker arm, and one torsion arm is disposed on the second connecting block, and the other torsion arm is disposed on the second rotating rocker arm; The end of the first rotating rocker arm away from the first connecting block is located in the first locking slide and slides into the first locking slot. The end of the second rotating rocker arm away from the second connecting block is located in the second locking slide and slides into the second locking slot.

[0011] The multi-fold array antenna of the present invention has a cross-plate unfolding hinge structure, wherein the connecting rod locking unit includes a locking hook, a third locking torsion spring, and a locking connecting rod; The locking hook is rotatably connected to the first connecting block, and the rotation axis of the locking hook is parallel to the main drive axis; the second locking torsion spring passes through the rotation axis of the locking hook, and one torsion arm of the second locking torsion spring is fixed to the associated first connecting block, and the other torsion arm is fixed to the locking hook; the locking connecting rod is fixed to the second connecting block; Alternatively, the locking hook is rotatably connected to the second connecting block, and the rotation axis of the locking hook is parallel to the main drive axis; the second locking torsion spring passes through the rotation axis of the locking hook, and one torsion arm of the second locking torsion spring is fixed to the associated second connecting block, and the other torsion arm is fixed to the locking hook; the locking linkage is fixed to the first connecting block; In the preset unfolded position, the locking hook engages with the locking link.

[0012] The multi-fold array antenna of the present invention has a cross-plate unfolding hinge structure, wherein there are two connecting rod locking units. A locking hook and a locking connecting rod are provided on the first connecting block and the second connecting block, and the locking hook and the locking connecting rod associated with the same first connecting block or the second connecting block are located on both sides of the first main rod or the second main rod.

[0013] The present invention discloses a multi-fold array antenna with a cross-plate unfolding hinge structure, wherein a micro switch is provided on the first connecting block and / or the second connecting block; the micro switch includes a control body, a switch button and a spring plate disposed on the control body, one end of the spring plate being disposed on the control body, and the other end extending to the side of the switch button opposite to the control body; in a preset unfolding position, the spring plate is located between the first rotating arm / second rotating arm and the switch button, and is pressed against the switch button by the rotating arm.

[0014] The present invention relates to a multi-fold array antenna with a cross-plate unfolding hinge structure, wherein a triangular block is provided on the locking hook, and the locking link slides on the inclined surface corresponding to the triangular block and engages with the locking hook.

[0015] An array antenna, wherein the multi-fold array antenna has a cross-plate unfolding hinge structure.

[0016] Because of the above technical solutions, this invention application has the following advantages and positive effects compared with the prior art: 1. The first link and the second link are rotatably connected, the first female hinge is rotatably connected to the first link, and the second female hinge is rotatably connected to the second link, so that the cross-plate unfolding hinge structure has three degrees of freedom and can be used to unfold antenna elements between cross-plates of multi-folded array antennas.

[0017] Second, the locking of the first female hinge and the first connecting rod is achieved by the first rotating rocker arm in the first locking unit, the first locking slide, and the first locking slot, and the second rotating rocker arm in the second locking unit, the second locking slide, and the second locking slot, respectively; the locking of the second female hinge and the second connecting rod is achieved by the connecting rod locking unit. This structure has the advantages of being simple and having reliable working performance.

[0018] Third, the cross-plate unfolding hinge structure of this application is not only applicable to large unfolding mechanisms with multiple unfolding functions in the aerospace field, but can also be applied in the civilian field.

[0019] IV. The micro switch is set to monitor whether the cross-plate unfolding hinge structure has unfolded successfully, so as to generate timely information feedback. Attached Figure Description

[0020] Figure 1 A schematic diagram of the collapsed state structure of the cross-plate unfolding hinge structure of the multi-fold array antenna in this embodiment of the application. Figure 2 A schematic diagram of the preset unfolding structure of the cross-plate unfolding hinge structure of the multi-fold array antenna in this application embodiment. Figure 3 A schematic diagram of the unfolding process of the cross-plate unfolding hinge structure of the multi-fold array antenna in this embodiment of the application. Figure 4 This application provides a partial structural diagram of a cross-plate unfolding hinge structure in an array antenna according to an embodiment of the present application. Explanation of reference numerals in the attached drawings: 1. First connecting rod; 2. Second connecting rod; 3. First drive assembly; 4. First female hinge; 5. Second female hinge; 6. First locking slide; 7. First locking slot; 8. First main body rod; 9. First arc-shaped plate; 10. Second main body rod; 11. Second arc-shaped plate; 12. First connecting block; 13. First connecting plate; 14. Second connecting block; 15. Second connecting plate; 16. First rotating rocker arm; 17. First locking torsion spring; 18. Locking hook; 19. Third locking torsion spring; 20. Locking connecting rod; 21. Control body; 22. Switch button; 23. Spring plate; 24. Second locking slide; 25. Second locking slot; 26. Second rotating rocker arm; 27. Second locking torsion spring; 28. Triangular block. Detailed Implementation

[0021] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a cross-plate unfolding hinge structure for a multi-fold array antenna, as well as the array antenna itself, according to this invention application. The advantages and features of this invention will become clearer from the following description and claims.

[0022] See Figure 1 In one embodiment, a cross-plate unfolding hinge structure for a multi-fold array antenna includes a first connecting rod 1, a second connecting rod 2, a first driving assembly 3, a first female hinge 4, a second female hinge 5, a first locking unit and a second locking unit, a first locking slide 6 and a second locking slide 24, a first locking slot 7 and a second locking slot 25, and at least one connecting rod locking unit.

[0023] The first link 1 is provided with a first locking slide 6, and the end of the first locking slide 6 is provided with a first locking groove 7; the second link 2 is provided with a second locking slide 24, and the end of the second locking slide 24 is provided with a second locking groove 25; the first end of the first link 1 is rotatably connected to the first end of the second link 2, and the first drive assembly drives the first link 1 and the second link 2 to rotate relative to each other from a preset retracted state to a preset extended state.

[0024] The first female hinge 4 is used to connect the external antenna unit mounting surface. The first female hinge 4 is rotatably connected to the second end of the first connecting rod 1 and is driven to rotate by the second driving member. The first female hinge 4 is provided with a first locking unit. The first locking unit is slidably connected to the first locking slide 6 and locked in the first locking slot 7. The guide trajectory direction of the first locking slide 6 is opposite to the rotation direction of the first connecting rod 1.

[0025] The second female hinge 5 is used to connect the mounting surface of the external cross-plate antenna unit. The second female hinge 5 is rotatably connected to the second end of the second connecting rod 2 and is driven to rotate by the third driving member. The second female hinge 5 is provided with a second locking unit. The second locking unit is slidably connected to the second locking slide 24 and locked in the second locking slot 25. The guide trajectory direction of the second locking slide 24 is opposite to the rotation direction of the second connecting rod 2.

[0026] The linkage locking unit includes corresponding buckles and locking components, which are respectively disposed on the first female hinge 4 and the second female hinge 5, and are used to lock the first link 1 and the second link 2 in a preset unfolded state.

[0027] The main working process is as follows: In the preset retracted state, the antenna arrays (external antenna units) of the cross-plate unfolding hinge structure are overlapped; when it is necessary to open the two antenna arrays connected by the cross-plate, the first power component enables the first locking unit to cooperate with the first locking slide 6 to slide into the first locking slot 7, and the second power component enables the second locking unit to cooperate with the second locking slide 24 to slide into the second locking slot 25, which is at the preset unfolded position; on the one hand, it drives the first female hinge 4 and the second female hinge 5 to rotate; on the other hand, after the rotation is completed, it realizes the first female hinge 4 and the second female hinge 5... Fixed; the first driving component 3 simultaneously drives the first link 1 and the second link 2 to rotate and move closer to each other (to be further detailed, during the deployment of the antenna array, the first link 1 and the second link 2 will first open to a certain extent due to the presence of external force, and then, as the first driving component 3 retracts, the main process of the first link 1 and the second link 2 moving closer to each other is realized), tending to rotate to the preset deployment position; when the first link 1 and the second link 2 rotate to be parallel to each other in the length direction (preset deployment state), the link locking unit locks the first link 1 and the second link 2.

[0028] With the above structure, the first connecting rod 1 and the second connecting rod 2 are rotatably connected, the first female hinge 4 is rotatably connected to the first connecting rod 1, and the second female hinge 5 is rotatably connected to the second connecting rod 2, so that the cross-plate unfolding hinge structure has three degrees of freedom and can be applied to the unfolding of antenna units between cross-plates of multi-folded array antennas; making the cross-plate unfolding hinge structure simple and reliable in operation.

[0029] The specific structure of the cross-plate unfolding hinge structure of the multi-fold array antenna in this embodiment will be further described below: See Figure 1 , Figure 2 and Figure 3 In this embodiment, the main drive shaft axis between the first connecting rod 1 and the second connecting rod 2, the rotation axis between the first female hinge 4 and the first connecting rod 1, and the rotation axis between the second female hinge 5 and the second connecting rod 2 are parallel to each other.

[0030] To further explain, the rotation axes between the components are parallel to each other, which can stably achieve the opening of the antenna array and prevent interference during rotation.

[0031] In this embodiment, the first connecting rod 1 includes a first main rod 8 and a first arc-shaped plate 9; the second connecting rod 2 includes a second main rod 10 and a second arc-shaped plate 11. The first end of the first main body rod 8 is rotatably connected to the first end of the second main body rod 10 via the main drive shaft. The second end of the first main body rod 8 is fixed to the first arc plate 9, and the second end of the second main body rod 10 is fixed to the second arc plate 11. The arc surface of the first arc plate 9 forms the first locking slide 6, and the arc surface of the second arc plate 11 forms the second locking slide 24. The first locking slide 6 and the second locking slide 24 are arranged opposite to each other in the preset unfolded position. The first female hinge 4 includes a first connecting block 12 and a first connecting plate 13, and the second female hinge 5 includes a second connecting block 14 and a second connecting plate 15. The first connecting block 12 is rotatably connected to the second end of the first main body rod 8, and the first connecting plate 13 is fixed to the first connecting block 12 for connecting the external antenna unit mounting surface; the second connecting block 14 is rotatably connected to the second end of the second main body rod 10, and the second connecting plate 15 is fixed to the second connecting block for connecting the external antenna unit mounting surface across the plate. The first locking slot 7 is located at the connection between the first arc plate 9 and the first main rod 8, and the second locking slot 25 is located at the connection between the second arc plate 11 and the second main rod 10.

[0032] Further configuration: there are two first connecting blocks 12 and two second connecting blocks 14. The first connecting blocks 12 are located on both sides of the first main body rod 8, and the second connecting blocks 14 are located on both sides of the second main body rod 10. Accommodation spaces are formed between the two first connecting blocks 12 and the first connecting plate 13, and between the two second connecting blocks 14 and the second connecting plate 15. The first arc-shaped plate 9 and the second arc-shaped plate 11 are located within the corresponding accommodation spaces. In the preset unfolded position, a symmetrical plane is defined between the first connecting rod 1 and the second connecting rod 2, and this symmetrical plane passes through the axis of the main drive shaft. The first connecting rod 1, the first female hinge 4, the second connecting rod 2, and the second female hinge 5 are symmetrically distributed with respect to the symmetrical plane.

[0033] Furthermore, the settings of the first connecting plate 13 and the second connecting plate 15 can be configured according to the installation method and direction of the antenna array.

[0034] In this embodiment, the first driving component 3 is a driving torsion spring; the driving torsion spring passes through the main driving shaft between the first connecting rod 1 and the second connecting rod 2, and the two torsion arms of the driving torsion spring are respectively fixed to the first connecting rod 1 and the second connecting rod 2.

[0035] Further configuration: when the drive torsion spring is in the retracted state, the drive torsion spring is in the rebound state; in order to facilitate the connection between the drive torsion spring and the first link 1 and the second link 2, contact points can be provided on the first link 1 and the second link 2 to connect the two torsion arms of the drive torsion spring to the contact points.

[0036] In this embodiment, the first locking unit is a first rotating rocker arm 16, and the second locking unit is a second rotating rocker arm 26; the first power assembly is a first locking torsion spring 17, and the second power assembly is a second locking torsion spring 27. The first rotating rocker arm 16 is rotatably connected to the first connecting block 12, and the rotation axis of the first rotating rocker arm 16 is parallel to the axis of the main drive shaft; the first locking torsion spring 17 passes through the rotating shaft of the first rotating rocker arm 16, and one torsion arm is provided on the first connecting block 12, and the other torsion arm is provided on the first rotating rocker arm 16. The second rotating rocker arm 26 is rotatably connected to the second connecting block 14, and the rotation axis of the second rotating rocker arm 26 is parallel to the axis of the main drive shaft; the second locking torsion spring 27 passes through the rotating shaft of the second rotating rocker arm 26, and one torsion arm is set on the second connecting block 14, and the other torsion arm is set on the second rotating rocker arm 26. The end of the first rotating rocker arm 16 that is away from the first connecting block 12 is located in the first locking slide 6 and slides into the first locking slot 7. The end of the second rotating rocker arm 26 that is away from the second connecting block 14 is located in the second locking slide and slides into the second locking slot 25.

[0037] Further configuration: one torsion arm of the first locking torsion spring 17 can be fixed to the first connecting block 12, and the other torsion arm can be fixed to the first rotating rocker arm 16. Alternatively, one torsion arm of the first locking torsion spring 17 can abut against the first connecting plate 13, and the other torsion arm can abut against the first rotating rocker arm 16. The first locking torsion spring 17 is in a rebound state by abutting and pressing. The second locking torsion spring 27 is the same.

[0038] Further, the first locking torsion spring 17 is in a rebound state when the cross-plate unfolding hinge structure moves from a preset retracted position to a preset unfolded position. Its movement process is as follows: the first locking torsion spring 17 drives the first rotating swing rod 16 to rotate, causing the first rotating swing rod 16 to move along the direction of the first locking slide 6; the second locking torsion spring 27 drives the second rotating swing rod 26 to rotate, causing the second rotating swing rod 26 to move along the direction of the second locking slide 246. At this time, the first connecting plate 13 and the second connecting plate 15 will move, realizing the opening of the antenna array. Furthermore, when the first rotating swing rod 16 slides into the first locking slot 7 and the second rotating swing rod 26 slides into the second locking slot 25 and is fixed, the first connecting plate 13 and the second connecting plate 15 are fixed, thereby achieving the restriction of the degree of freedom between the first main body rod 8 connected to the first connecting block 12 and the second main body rod 10 connected to the second connecting block 14.

[0039] In this embodiment, the linkage locking unit includes a locking hook 18 (locking member), a third locking torsion spring 19, and a locking linkage 20 (buckle member). The locking hook 18 is rotatably connected to the first connecting block 12, and the rotation axis of the locking hook 18 is parallel to the main drive axis; the second locking torsion spring 27 passes through the rotation axis of the locking hook 18, and one torsion arm of the second locking torsion spring 27 is fixed to the associated first connecting block 12, and the other torsion arm is fixed to the locking hook 18; the locking connecting rod 20 is fixed to the second connecting block 14. Alternatively, the locking hook 18 is rotatably connected to the second connecting block 14, and the rotation axis of the locking hook 18 is parallel to the main drive axis; the second locking torsion spring 27 passes through the rotation axis of the locking hook 18, and one torsion arm of the second locking torsion spring 27 is fixed to the associated second connecting block 14, and the other torsion arm is fixed to the locking hook 18; the locking link 20 is fixed to the first connecting block 12. In the preset unfolded position, the locking hook 18 is engaged with the locking link 20.

[0040] In this embodiment, a triangular block 28 is provided on the locking hook 18, and the locking link 20 slides on the inclined surface of the corresponding triangular block 28 and engages with the locking hook 18. Furthermore, by setting up a triangular block, the locking link 20 can be easily inserted into the locking hook, and then the second locking torsion spring 27 can achieve a fastening effect, thereby improving the stability of the connection.

[0041] In this embodiment, there are two second locking units. A locking hook 18 and a locking link 20 are provided on the first connecting block 12 and the second connecting block 14, and the locking hook 18 and the locking link 20 connected to the same first connecting block 12 or second connecting block 14 are located on both sides of the first main body rod 8 or the second main body rod 10.

[0042] Further configurations include, for example, the first rotating rocker arm 16 is connected to the end of the first connecting block 12, and the locking hook 18 of the second locking unit or the locking link 20 is connected to the other end of the first connecting block 12, such that the two ends are located on both sides of the rotating shaft of the first connecting block 12 rotatably connected to the first main body rod 8; the second connecting block 14 is the same.

[0043] As a result, during the rotation of the first connecting block 12, the connecting rod locking unit located on the first connecting block 12 will approach the connecting rod locking unit on the second connecting block 14 until the locking hook 18 is connected to the locking connecting rod 20.

[0044] Furthermore, deep groove ball bearings are used on the main drive shaft between the first connecting rod 1 and the second connecting rod 2, the rotating shaft between the first female hinge 4 and the first connecting rod 1, and the rotating shaft between the second female hinge 5 and the second connecting rod 2.

[0045] In this embodiment, a micro switch is provided on the first connecting block 12 and / or the second connecting block 14; the micro switch includes a control body 21, a switch button 22 and a spring sheet 23 disposed on the control body 21, one end of the spring sheet 23 is disposed on the control body 21, and the other end extends to the side of the switch button 22 away from the control body 21; in the preset unfolded position, the spring sheet 23 is located between the rotating rocker arm 16 and the switch button 22, and is pressed against the switch button 22 by the first rotating rocker arm 16 / second rotating rocker arm 26.

[0046] Further, a micro-motion mechanism is installed on the first connecting block 12. During the rotation of the first rotating rocker arm 16 / second rotating rocker arm 26, the spring plate 23 will be compressed, causing the spring plate 23 to contact the switch button 22. This is used to monitor whether the cross-plate unfolding hinge structure has been successfully unfolded, thus generating timely information feedback.

[0047] The following explains the principle of the cross-plate unfolding hinge structure of the multi-fold array antenna in this embodiment: The two ends of the cross-plate unfolding hinge structure are connected to two antenna arrays, and there are other array antennas between these two antenna arrays, which makes the unfolding range of the cross-plate unfolding hinge structure need to be larger and its required degrees of freedom more; First, when the first rotating swing arm 16 drives the first female hinge 4 to rotate under the action of the first locking torsion spring 17, the second rotating swing arm 26 drives the second female hinge 5 to rotate under the action of the second locking torsion spring 27, so that the first female hinge 4 rotates through the first locking slide 6 and the second female... The hinge 5 is fully opened under the guidance of the second locking slide 24; after the first rotating swing arm 16 enters the first locking slot 7, and the second rotating swing arm 26 enters the second locking slot 25, the first connecting plate 13 and the second connecting plate 15 are flush, so that the external antenna array is located on the same plane and is fixed; at the same time, the first main body rod 8 and the second main body rod 10 are brought closer to each other under the action of the drive torsion spring until the locking hook 18 is engaged with the locking link 20, so that the first main body rod 8 and the second main body rod 10 are locked. During this process, the first rotating lever 16 and / or the second rotating lever 26 will push the spring plate 23, causing the micro switch to respond and realize information feedback.

[0048] Example 2: See Figure 1 and 4 The present invention provides an array antenna including a cross-plate unfolding hinge structure for a multi-fold array antenna. The cross-plate unfolding hinge structure includes a first connecting rod 1, a second connecting rod 2, a driving component 3, a first female hinge 4, a second female hinge 5, two first locking units, two first locking slides 6, two locking slots 7, and at least one second locking unit.

[0049] The first end of the first link 1 and the first end of the second link 2 are rotatably connected; the drive assembly 3 is disposed between the first link 1 and the second link 2 and is used to drive the relative rotation of the first link 1 and the second link 2.

[0050] The first female hinge 4 is used to connect the external antenna unit mounting surface and is rotatably connected to the second end of the first connecting rod 1; the second female hinge 5 is used to connect the external antenna unit mounting surface of another cross plate and is rotatably connected to the second end of the second connecting rod 2.

[0051] Two first locking units are respectively disposed on the first female hinge 4 and the second female hinge 5; two first locking slides 6 are respectively opened at the second end of the first connecting rod 1 and the second end of the second connecting rod 2; two locking slots 7 are respectively disposed on the first connecting rod 1 and the second connecting rod 2, and the locking slots 7 are connected to the end of the corresponding first locking slide 6, and the two first locking units are respectively engaged in the corresponding locking slots 7 and are in the preset unfolded position at this time.

[0052] At least one second locking unit, including a snap-fit ​​end and a locking end, is respectively disposed on the first female hinge 4 and the second female hinge 5, and the snap-fit ​​end is fixed to the locking end when in the preset unfolded position.

[0053] The following describes the principle of an array antenna in this embodiment: For example, the array antenna includes an upper antenna unit plate, a middle plate between two antenna units, and a lower antenna unit plate, which are overlapped when in the folded position. The cross-plate unfolding hinge structure connects the upper antenna unit plate and the lower antenna unit plate. When unfolded, the first locking unit drives the first female hinge 4 and the second female hinge 5 to rotate, which in turn drives the upper antenna unit plate and the lower antenna unit plate to open to a parallel position. Then, the locking slot 7 fixes the first female hinge 4 and the second female hinge 5. At this time, the first connecting rod 1 and the second connecting rod 2 move closer to each other under the action of the driving component 3 until the second unit locking unit is fixed.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A cross-plate unfolding hinge structure for a multi-folded array antenna, characterized in that, include, The first link has a first locking slide, and the end of the first locking slide has a first locking groove. The second link has a second locking slide, and the end of the second locking slide has a second locking groove; the first end of the first link is rotatably connected to the first end of the second link, and the first link and the second link are driven by the first drive assembly to rotate relative to each other from a preset retracted state to a preset unfolded state; The first female hinge is used to connect to the external antenna unit mounting surface. The first female hinge is rotatably connected to the second end of the first connecting rod and is driven to rotate by the second driving member. The first female hinge is provided with a first locking unit. The first locking unit is slidably connected to the first locking slide and engaged in the first locking slot. The guide trajectory direction of the first locking slide is opposite to the rotation direction of the first connecting rod. The second female hinge is used to connect the external cross-panel antenna unit mounting surface. The second female hinge is rotatably connected to the second end of the second connecting rod and is driven to rotate by the third driving member. The second female hinge is provided with a second locking unit, which is slidably connected to the second locking slide and engaged in the second locking slot. The guide trajectory direction of the second locking slide is opposite to the rotation direction of the second connecting rod. The linkage locking unit includes corresponding buckles and locking components, which are respectively disposed on the first female hinge and the second female hinge, and are used to lock the first linkage and the second linkage in the preset unfolded state; The main drive shaft axis between the first connecting rod and the second connecting rod, the rotation axis between the first female hinge and the first connecting rod, and the rotation axis between the second female hinge and the second connecting rod are parallel to each other; The first connecting rod includes a first main body rod and a first arc-shaped plate; the second connecting rod includes a second main body rod and a second arc-shaped plate; The first end of the first main body rod is rotatably connected to the first end of the second main body rod via the main drive shaft. The second end of the first main body rod is fixed to the first arc-shaped plate, and the second end of the second main body rod is fixed to the second arc-shaped plate. The arc-shaped surface of the first arc-shaped plate forms the first locking slide, and the arc-shaped surface of the second arc-shaped plate forms the second locking slide. The first locking slide and the second locking slide are arranged opposite to each other in a preset unfolded position. The first female hinge component includes a first connecting block and a first connecting plate, and the second female hinge component includes a second connecting block and a second connecting plate; The first connecting block is rotatably connected to the second end of the first main body rod, and the first connecting plate is fixed to the first connecting block for connecting the external antenna unit mounting surface; the second connecting block is rotatably connected to the second end of the second main body rod, and the second connecting plate is fixed to the second connecting block for connecting the cross-plate external antenna unit mounting surface; Wherein, the first locking slot is located at the connection between the first arc-shaped plate and the first main body rod, and the second locking slot is located at the connection between the second arc-shaped plate and the second main body rod; The first locking unit is a first rotating rocker arm, and the second locking unit is a second rotating rocker arm; the first power component is a first locking torsion spring, and the second power component is a second locking torsion spring; The first rotating rocker arm is rotatably connected to the first connecting block, and the rotation axis of the first rotating rocker arm is parallel to the axis of the main drive shaft; the first locking torsion spring passes through the rotating shaft of the first rotating rocker arm, and one torsion arm is disposed on the first connecting block, and the other torsion arm is disposed on the first rotating rocker arm; The second rotating rocker arm is rotatably connected to the second connecting block, and the rotation axis of the second rotating rocker arm is parallel to the axis of the main drive shaft; the second locking torsion spring passes through the rotating shaft of the second rotating rocker arm, and one torsion arm is disposed on the second connecting block, and the other torsion arm is disposed on the second rotating rocker arm; The end of the first rotating rocker arm away from the first connecting block is located in the first locking slide and slides into the first locking slot; the end of the second rotating rocker arm away from the second connecting block is located in the second locking slide and slides into the second locking slot. The linkage locking unit includes a locking hook, a third locking torsion spring, and a locking linkage; The locking hook is rotatably connected to the first connecting block, and the rotation axis of the locking hook is parallel to the main drive axis; the second locking torsion spring passes through the rotation axis of the locking hook, and one torsion arm of the second locking torsion spring is fixed to the associated first connecting block, and the other torsion arm is fixed to the locking hook; the locking connecting rod is fixed to the second connecting block; Alternatively, the locking hook is rotatably connected to the second connecting block, and the rotation axis of the locking hook is parallel to the main drive axis; the second locking torsion spring passes through the rotation axis of the locking hook, and one torsion arm of the second locking torsion spring is fixed to the associated second connecting block, and the other torsion arm is fixed to the locking hook; the locking linkage is fixed to the first connecting block; In the preset unfolded position, the locking hook engages with the locking link.

2. The cross-plate unfolding hinge structure of the multi-fold array antenna according to claim 1, characterized in that: The first driving component is a driving torsion spring; the driving torsion spring passes through the main drive shaft between the first connecting rod and the second connecting rod, and the two torsion arms of the driving torsion spring are respectively fixed to the first connecting rod and the second connecting rod.

3. The cross-plate unfolding hinge structure of the multi-fold array antenna according to claim 1, characterized in that: The number of the linkage locking units is two. Each of the first connecting block and the second connecting block is provided with a locking hook and a locking link. The locking hook and the locking link associated with the same first connecting block or the second connecting block are located on both sides of the first main body rod or the second main body rod.

4. The cross-plate unfolding hinge structure of the multi-fold array antenna according to claim 1, characterized in that: A micro switch is provided on the first connecting block and / or the second connecting block; the micro switch includes a control body, a switch button and a spring plate disposed on the control body, one end of the spring plate is disposed on the control body, and the other end extends to the side of the switch button away from the control body; in a preset unfolded position, the spring plate is located between the first rotating rocker arm / second rotating rocker arm and the switch button, and contacts the switch button by the rotating rocker arm.

5. The cross-plate unfolding hinge structure of the multi-fold array antenna according to claim 1, characterized in that: The locking hook is provided with a triangular block, and the locking link slides on the inclined surface corresponding to the triangular block and engages with the locking hook.

6. An array antenna, characterized in that: The cross-plate unfolding hinge structure includes the multi-fold array antenna as described in any one of claims 1 to 5.

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