Antenna tuning unit device and assembling method

Abstract

The invention discloses an antenna tuning unit device and an assembly method, and the device comprises a frame, a first tuning device and a second tuning device which are symmetrically disposed in the frame, and a feed pipe device and an external device which are connected with the first tuning device and the second tuning device. The first tuning device comprises a first transmission device, an inductor, a first capacitor, a second capacitor, a curved bar, a short circuit device, a second transmission device and a third transmission device; the output end of the first transmission device, the inductor, the first capacitor and the second transmission device are sequentially, longitudinally and coaxially arranged and connected; one end of the curved bar is connected with the inductor, and the other end is sequentially connected with the second capacitor and the third transmission device; the short circuit device is simultaneously contacted with the inductor and the curved bar and synchronously moves up and down along with the rotation of the inductor so as to adjust the inductance value; and the second transmission device and the third transmission device rotate to adjust the overlapping area of the two metal plates in the first capacitor and the second capacitor so as to adjust the capacitance value, and the circuit efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of radar antennas, and particularly to an antenna tuning unit device and an assembly method thereof. Background Art

[0002] An antenna tuning unit is an impedance matching network between a transmitter and an antenna. It can match the impedance between the transmitter and the antenna, so that the antenna has the maximum radiation power at any frequency, and is widely used in short-wave radios.

[0003] An antenna is not an isolated component, but a complex integrated system with changing electromagnetic characteristics. When the surrounding environment changes, the input impedance of the antenna will change accordingly, resulting in impedance mismatch between the circuit and the antenna. The antenna tuning unit can maximize the matching degree between the circuit and the antenna, improve the circuit efficiency, reduce power loss and reduce the range requirement of adjusting the impedance at the impedance end, and avoid the problem that the complex and changeable environment changes the antenna impedance, resulting in antenna-circuit mismatch.

[0004] In the prior art, for the invention patent with the patent publication number CN106599746A, an antenna automatic tuning method: on the basis of adding an antenna automatic tuning circuit between the antenna and the radio frequency transceiver of the ultra-high frequency radio frequency identification reader / writer, by automatically determining the tuning result and automatically setting the control value, the antenna deviating from the standard matching impedance is retuned to the standard matching impedance, so as to achieve good matching between the antenna and the radio frequency transceiver of the ultra-high frequency radio frequency identification reader / writer. There is no mechanical adjustment impedance matching device in the prior art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: to provide a tuning device that can mechanically and dynamically adjust the matching degree between the circuit and the antenna.

[0006] To solve the above technical problem, the present invention provides the following technical solutions:

[0007] An antenna tuning unit device includes: a frame 1000, and a first tuning device 100 and a second tuning device 200 symmetrically arranged within the frame 1000, and further includes a feeder device 300 and an external device 400 connected to the first tuning device 100 and the second tuning device 200;

[0008] The first tuning device 100 includes a first transmission device 110, an inductor 120, a first capacitor 130, a second capacitor 140, a curved rod 150, a short-circuit device 160, a second transmission device 170, and a third transmission device 180;

[0009] The output end of the first transmission device 110, the inductor 120, the first capacitor 130, and the second transmission device 170 are longitudinally coaxially arranged and connected in sequence; one end of the curved rod 150 is connected to the inductor 120, and the other end is sequentially connected to the second capacitor 140 and the third transmission device 180;

[0010] The short - circuit device 160 is in contact with both the inductor 120 and the curved rod 150, and moves up and down synchronously with the rotation of the inductor 120 to adjust the inductance value; the second transmission device 170 and the third transmission device 180 rotate to adjust the overlapping area of the two metal plates in the first capacitor 130 and the second capacitor 140 to adjust the capacitance value.

[0011] Advantages: A mechanical tuning device is provided. The inductor is rotated by the transmission device, and the short - circuit device moves up and down synchronously with the inductor to short - circuit part of the inductor coil to adjust the inductance value. The transmission device rotates the capacitor to change the overlapping area of the metal plates of the capacitor to adjust the capacitance value. A dynamic impedance - matching network is realized, and the circuit efficiency is improved.

[0012] In an embodiment of the present invention, the first transmission device 110 has two output ends, which are respectively connected to the inductors in the first tuning device 100 and the second tuning device 200, and the two output ends of the first transmission device 110 rotate synchronously and in the same rotation direction; and the third transmission device 180 is simultaneously connected to the second capacitors in the first tuning device 100 and the second tuning device 200.

[0013] In an embodiment of the present invention, the frame 1000 includes a frame 1100, and a top plate 1120, a first intermediate plate 1130, a second intermediate plate 1140, and a bottom plate 1150 that are detachably connected to the frame 1100;

[0014] A first output hole 121 and a second output hole 122 are provided on the top plate 1120; the first transmission device 110 is fixedly located on the top plate 1120, and the two output ends of the first transmission device 110 respectively extend out from the first output hole 121 and the second output hole 122;

[0015] There are two rows of fixing holes on the first intermediate plate 1130. The first row of fixing holes includes a first fixing hole 131, a second fixing hole 132, and a third fixing hole 133 arranged side by side in sequence; the second row of fixing holes includes a fourth fixing hole 134 and a fifth fixing hole 135; the second row of fixing holes is located on the side close to the external device 400;

[0016] On the second intermediate plate 1140, there are a third output hole 141, a sixth fixing hole 142, and a fourth output hole 143 arranged side by side in sequence; and a fifth output hole 144 and a sixth output hole 145 arranged in the same orientation as the second row of fixing holes;

[0017] The axes of the first output hole 121, the first fixing hole 131, and the third output hole 141 are concentric; the axes of the second output hole 122, the third fixing hole 133, and the fourth output hole 143 are concentric.

[0018] In an embodiment of the present invention, the first capacitor 130 is fixedly located within the first fixing hole 131, the second transmission device 170 is fixedly located between the second intermediate plate 1140 and the bottom plate 1150, is fixedly connected to the second intermediate plate 1140, and the output shaft passes through the third output hole 141 and is connected to the rotating shaft of the first capacitor 130 through a coupling to drive the first capacitor 130 to rotate; one end of the inductor 120 is connected to the output end of the first transmission device 110, and the other end is connected to the first capacitor 130;

[0019] And the fourth output hole 143 and the third fixing hole 133 are used to fix the second transmission device and the first capacitor in the second tuning device 200;

[0020] The fourth fixing hole 134 and the fifth fixing hole 135 respectively fix the second capacitors of the first tuning device 100 and the second tuning device 200; the third transmission device 180 is located between the bottom plate 1150 and the second intermediate plate 1140, is fixedly connected to the second intermediate plate 1140, and its two output shafts respectively pass through the fifth output hole 144 and the sixth output hole 145, and are connected to the rotating shafts of the second capacitors of the first tuning device 100 and the second tuning device 200 through couplings to drive the second capacitors to rotate.

[0021] In an embodiment of the present invention, the antenna tuning unit device further includes a first liquid cooling device 510, a second liquid cooling device 520, and a water culvert device 530; the first liquid cooling device 510 is hinged to the top plate 1120 in the frame 1000; the second liquid cooling device 520 is fixedly connected to the first capacitor 130, and the water culvert device 530 is fixedly connected to the second capacitor 140;

[0022] The inductor 120 is formed by winding a coil, and the inside is a hollow copper tube, and the interfaces at both ends are open, and one end is connected to the output end of the first transmission device 110 through the first liquid cooling device 510, and the other end is located within the second liquid cooling device 520 and is hinged to the second liquid cooling device 520;

[0023] The inside of the curved rod 150 is hollow, one end is connected to the first liquid cooling device 510, and the other end is connected to the water culvert device 530;

[0024] The first liquid cooling device 510, the second liquid cooling device 520, the inductor 120, the curved rod 150 and the water culvert device 530 form a cooling path for the inductor.

[0025] In an embodiment of the present invention, the first capacitors in the first tuning device 100 and the second tuning device 200 are connected by a connecting piece 1200; the second capacitors in the first tuning device 100 and the second tuning device 200 are both connected to the external device 400 and are connected to the antenna through the external device 400.

[0026] In an embodiment of the present invention, the feeder device 300 sequentially passes through the sixth fixing hole 142 and the second fixing hole 132 in the frame 1000 and is detachably connected thereto; the feeder device 300 includes a first feeder 310, a second feeder 320, a third feeder 330 and a fourth feeder 340 that are sequentially detachably connected; the first feeder 310 is located in the second fixing hole 132, the second feeder 320 is located between the first intermediate plate 1130 and the second intermediate plate 1140 in the frame 1000, and both ends are respectively connected to the first feeder 310 and the third feeder 330; the third feeder 330 is a right-angle pipe, one end passes through the sixth fixing hole 142 to be connected to the second feeder 320, and the other end is connected to the fourth feeder 340; an internal feeder device 350 is provided inside the feeder device 300, one end of the internal feeder device 350 extends out of the first feeder 310 to be connected to the connecting piece 1200, and the other end is connected to a transmitter.

[0027] In an embodiment of the present invention, the short-circuit device 160 includes a short-circuit connector 161, a guide rail 162, a pulley 163, a counterweight 164 and a suspension rope 165; the guide rail 162 passes through the short-circuit connector 161; the short-circuit connector 161 is located between the inductor 120 and the curved rod 150, and the inductor 120 and the curved rod 150 are respectively in contact with different ends and different sides of the short-circuit connector 161; when the inductor 120 rotates, the short-circuit connector 161 can slide up and down along the guide rail 162 synchronously and always remain in contact with the inductor 120 and the curved rod 150; one end of the suspension rope 165 is connected to the short-circuit connector 161, and the other end passes through the pulley 163 and is fixedly connected to the counterweight 164.

[0028] In one embodiment of the present invention, the short-circuit 161 includes a slider 1611, a clip 1612, a short-circuit tube 1613 and a torque adjustment device 1614; one end of the slider 1611 limits the inductor 120, and can slide up and down synchronously along the coil of the inductor 120 when the inductor 120 rotates, one end of the clip 1612 is detachably connected to the other end of the slider 1611, and the torque adjustment device 1614 passes through the short-circuit tube 1613 and is detachably connected to the clip 1612. The clip 1612 can rotate on the slider 1611 to adjust the fixed angle and adjust the position of the short tube 1613 in conjunction with the short tube 1613 so that both ends of the short tube 1613 are in contact with the inductor 120 and the bent rod 150 to short-circuit part of the coil of the inductor 120; the torque adjustment device 1614 can adjust the torque in two different ways so that the torque acts on the short tube 1613 to ensure the reliability of the contact between the short tube 1613 and the inductor 120 and the bent rod 150.

[0029] The present invention also provides an assembling method of an antenna tuning unit device, the assembling steps comprising:

[0030] 1. Frame 1000 assembly;

[0031] The top plate 1120, the first middle plate 1130 and the second middle plate 1140 are sequentially assembled on the frame 1100, and the bolts installed are not tightened at this time; two sets of centering tools 700 are used to respectively make the first output hole 121, the first fixing hole 131 and the third output hole 141 coaxial; and make the second output hole 122, the third fixing hole 133 and the fourth output hole 143 coaxial, and tighten the bolts at this time;

[0032] 2. Assembly of the feeding tube device 300;

[0033] Install the first feed pipe 310, the second feed pipe 320, the third feed pipe 330 and the fourth feed pipe 340 in sequence, and then remove the fourth feed pipe 340;

[0034] 3. The first tuning device 100 and the second tuning device 200 are assembled;

[0035] Remove the first concentric flange 720 on the centering tool 700 and assemble the first transmission device 110; use the optical axis 710 of the centering tool 700 to verify the concentricity of the first transmission device 110; remove the centering tool 700;

[0036] The first liquid cooling device 510 is coaxial with the output end of the first transmission device 110 through a centering flange, and is connected to the top plate 1120;

[0037] Assemble the second transmission device 170 and the third transmission device 180, and connect them to the rotating shafts of the first capacitor 130 and the second capacitor 140 through a coupling;

[0038] Assemble the second liquid cooling device 520 and the water culvert device 530 to the first capacitor 130 and the second capacitor 140 respectively, and then connect the two ends of the curved rod 150 to the first liquid cooling device 510 and the water culvert device 530 respectively;

[0039] Pass the guide rail 162 through the short-circuit connector 161, and fixedly connect the two ends of the guide rail 162 to the top plate 1120 and the first intermediate plate 1130 respectively;

[0040] Connect the inductor 120 to the first liquid cooling device 510 and the second liquid cooling device 520, so that the inductor 120 and the curved rod 150 are in non-side contact with different ends of the short-circuit connector 161 respectively, and snap one end of the short-circuit connector 161 onto the inductor 120; when the inductor 120 rotates, the short-circuit connector 161 can slide up and down along the guide rail 162 synchronously and always keep in contact with the inductor 120 and the curved rod 150; one end of the suspension rope 165 is connected to the short-circuit connector 161, and the other end is fixedly connected to the counterweight 164 after passing through the pulley 163.

[0041] Compared with the prior art, the beneficial effects of the present invention are as follows: A mechanical tuning device is provided. The inductor is rotated by the transmission device, and the short-circuit device moves up and down synchronously with the inductor to short-circuit part of the inductor coil to adjust the inductance value. The transmission device rotates the capacitor to change the overlapping area of the metal plates of the capacitor and adjust the capacitance value. A dynamic impedance matching network is realized to improve the circuit efficiency. The torque adjustment device provides two ways to increase the torque, and the directions of the torque are different, so that both ends of the short-circuit tube are closely attached to the inductor and the curved rod, ensuring the reliability of the short circuit. The cooling path of the inductor makes the inductor and the curved rod not only connection components but also act as cooling tubes, improving the utilization rate of components and the utilization rate of the assembly space.

[0042] Through the assembly method, the coaxial requirements of the transmission part can be ensured, so that no extra external force is generated during the rotation of the system, there is no jamming phenomenon in each rotating part, the rotation is smooth, the liquid cooling transmission is unobstructed without liquid leakage, and the function of the antenna tuner can be maximally exerted. Description of the Drawings

[0043] Figure 1 and 2 is a schematic diagram of an antenna tuning unit device according to an embodiment of the present invention.

[0044] Figure 3 and 4 is a schematic diagram of the framework according to an embodiment of the present invention.

[0045] Figure 5 and 6 is a schematic diagram of the short - circuit device according to an embodiment of the present invention.

[0046] Figures 7 to 9 is a schematic diagram of the short - circuit connector according to an embodiment of the present invention.

[0047] Figure 10 is a schematic diagram of the centering tooling according to an embodiment of the present invention. Detailed implementation manners

[0048] For the convenience of those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings of the specification.

[0049] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0050] Please refer to Figures 1 to 4 as shown, the present invention provides an antenna tuning unit device, including: a frame 1000, and a first tuning device 100 and a second tuning device 200 symmetrically arranged within the frame 1000, and further including a feeder device 300 and an external device 400 connected to the first tuning device 100 and the second tuning device 200.

[0051] Please refer to Figures 1 to 4 as shown, in an embodiment of the present invention, the frame 1000 includes a frame body 1100, and a top plate 1120, a first intermediate plate 1130, a second intermediate plate 1140 and a bottom plate 1150 detachably connected to the frame body 1100. The top plate 1120 is provided with a first output hole 121 and a second output hole 122. The first transmission device 110 is fixedly located on the top plate 1120, and two output ends of the first transmission device 110 respectively extend out from the first output hole 121 and the second output hole 122. There are two rows of fixing holes on the first intermediate plate 1130. The first row of fixing holes includes a first fixing hole 131, a second fixing hole 132 and a third fixing hole 133 arranged side by side in sequence. The second row of fixing holes includes a fourth fixing hole 134 and a fifth fixing hole 135, and the second row of fixing holes is located on the side close to the external device 400. There are a third output hole 141, a sixth fixing hole 142 and a fourth output hole 143 arranged side by side in sequence on the second intermediate plate 1140, and a fifth output hole 144 and a sixth output hole 145 arranged in the same orientation as the second row of fixing holes. The axes of the first output hole 121, the first fixing hole 131 and the third output hole 141 are concentric, and the axes of the second output hole 122, the third fixing hole 133 and the fourth output hole 143 are concentric.

[0052] Please refer to Figures 1 to 4 As shown, in an embodiment of the present invention, the first tuning device 100 and the second tuning device 200 are symmetrically arranged. For the sake of simplicity of the description, this embodiment takes the first tuning device 100 as an example for illustration. However, there is no doubt that the connection relationship, positional relationship and working principle of the components in the second tuning device 200 are the same as those in the first tuning device 100.

[0053] The first tuning device 100 includes a first transmission device 110, an inductor 120, a first capacitor 130, a second capacitor 140, a crank lever 150, a short-circuit device 160, a second transmission device 170 and a third transmission device 180. The output end of the first transmission device 110, the inductor 120, the first capacitor 130 and the second transmission device 170 are arranged and connected longitudinally and coaxially in sequence. One end of the crank lever 150 is connected to the inductor 120, and the other end is connected to the second capacitor 140 and the third transmission device 180 in sequence.

[0054] The short-circuit device 160 is in contact with both the inductor 120 and the crank lever 150, and moves up and down synchronously with the rotation of the inductor 120 to adjust the inductance value. The second transmission device 170 and the third transmission device 180 rotate to adjust the overlapping area of the two metal plates in the first capacitor 130 and the second capacitor 140 to adjust the capacitance value. Among them, the first transmission device 110 has two output ends, which are respectively connected to the inductors in the first tuning device 100 and the second tuning device 200, and the two output ends of the first transmission device 110 rotate synchronously and in the same rotation direction. And the third transmission device 180 is connected to the second capacitors in both the first tuning device 100 and the second tuning device 200 at the same time. Specifically, the first capacitor 130 is a variable capacitor.

[0055] Specifically, the first capacitor 130 is fixedly located in the first fixing hole 131. The second transmission device 170 is fixedly located between the second intermediate plate 1140 and the bottom plate 1150, and is fixedly connected to the second intermediate plate 1140. The output shaft passes through the third output hole 141 and is connected to the rotating shaft of the first capacitor 130 through a coupling to drive the first capacitor 130 to rotate. One end of the inductor 120 is connected to the output end of the first transmission device 110, and the other end is connected to the first capacitor 130. And the fourth output hole 143 and the third fixing hole 133 are used to fix the second transmission device and the first capacitor in the second tuning device 200.

[0056] The fourth fixing hole 134 and the fifth fixing hole 135 respectively fix the second capacitors of the first tuning device 100 and the second tuning device 200. The third transmission device 180 is located between the bottom plate 1150 and the second intermediate plate 1140 and is fixedly connected to the second intermediate plate 1140. Its two output shafts respectively pass through the fifth output hole 144 and the sixth output hole 145 and are connected to the rotating shafts of the second capacitors of the first tuning device 100 and the second tuning device 200 through couplings, driving the second capacitors to rotate.

[0057] Please refer to Figures 1 to 4 As shown, in an embodiment of the present invention, the antenna tuning unit device further includes a first liquid cooling device 510, a second liquid cooling device 520, and a water culvert device 530 located between the top plate 1120 and the first intermediate plate 1130. The first liquid cooling device 510 is hinged to the top plate 1120; the second liquid cooling device 520 is fixedly connected to the first capacitor 130, and the water culvert device 530 is fixedly connected to the second capacitor 140.

[0058] The inductor 120 is formed by winding a coil, and the inside is a hollow copper tube. The interfaces at both ends are open. One end is connected to the output end of the first tuning device 100 in the first liquid cooling device 510, and the other end is located in the second liquid cooling device 520 and is hinged to the second liquid cooling device 520.

[0059] The inside of the curved rod 150 is hollow. One end is connected to the first liquid cooling device 510, and the other end is connected to the water culvert device 530. The second liquid cooling device 520, the inductor 120, the curved rod 150, and the water culvert device 530 form a cooling path for the inductor. The liquid cooling water enters from the second liquid cooling device 520 and exits from the water culvert device 530. Among them, the curved rod 150 is also hollow, making the inductor 120 and the curved rod 150 both connecting devices and cooling pipe fittings, fully improving the utilization space inside the frame 1000. The heat dissipation of the first capacitor 130 and the second capacitor 140 is cooled by deionized water through the inside of the capacitors.

[0060] The first capacitors in the first tuning device 100 and the second tuning device 200 are connected through a connecting piece 1200. The second capacitors in the first tuning device 100 and the second tuning device 200 are both connected to an external device 400 and are connected to the antenna through the external device 400. The antenna tuning unit device further includes a copper strip 500 and a discharge ball 600. One end of the copper strip 500 is connected to the first capacitor 130, and the other end is grounded through a grounding pressing plate 540. A plurality of discharge balls 600 are respectively connected to the first capacitors and the second capacitors of the first tuning device 100 and the second tuning device 200.

[0061] Please refer to Figures 1 to 6As shown, in one embodiment of the present invention, the feed tube device 300 passes through the sixth fixing hole 142 and the second fixing hole 132 in sequence and is detachably connected thereto. The feed tube device 300 includes a first feed tube 310, a second feed tube 320, a third feed tube 330 and a fourth feed tube 340 which are detachably connected in sequence, the first feed tube 310 is located in the second fixing hole 132, the second feed tube 320 is located between the first middle plate 1130 and the second middle plate 1140, and the two ends are respectively connected to the first feed tube 310 and the third feed tube 330. The third feed tube 330 is a right-angle tube, one end of which passes through the sixth fixing hole 142 and is connected to the second feed tube 320, and the other end is connected to the fourth feed tube 340; an internal feed device 350 is provided inside the feed tube device 300, one end of which extends out of the first feed tube 310 and is connected to the connecting piece 1200, and the other end is connected to the transmitter.

[0062] See also Figures 1 to 6 As shown, in one embodiment of the present invention, the short-circuit device 160 includes a short-circuit 161, a guide rail 162, a pulley 163, a counterweight 164 and a suspension rope 165. The guide rail 162 passes through the short-circuit 161; the short-circuit 161 is located between the inductor 120 and the bent rod 150, and the inductor 120 and the bent rod 150 are respectively in contact with different ends and sides of the short-circuit 161; when the inductor 120 rotates, the short-circuit 161 can slide up and down along the guide rail 162 synchronously, and always keep in contact with the inductor 120 and the bent rod 150, and one end of the suspension rope 165 is connected to the short-circuit 161, and the other end passes through the pulley 163 and is fixed to the counterweight 164.

[0063] See also Figures 1 to 9 As shown, in one embodiment of the present invention, the short-circuit 161 includes a slider 1611, a clip 1612, a short-circuit tube 1613 and a torque adjustment device 1614. One end of the slider 1611 limits the inductor 120, and can slide up and down synchronously along the coil of the inductor 120 when the inductor 120 rotates. One end of the clip 1612 is detachably connected to the other end of the slider 1611, and the torque adjustment device 1614 is detachably connected to the clip 1612 after passing through the short-circuit tube 1613. The clip 1612 can rotate on the slider 1611 to adjust the fixed angle, and the position of the short-circuit tube 1613 is adjusted in linkage, so that the two ends of the short-circuit tube 1613 are in contact with the inductor 120 and the bent rod 150 to short-circuit part of the coil of the inductor 120. The torque adjustment device 1614 can adjust the torque in two different ways so that the torque acts on the short pipe 1613 to ensure the reliability of the contact between the short pipe 1613 and the inductor 120 and the bent rod 150 .

[0064] One end of the slider 1611 is provided with a through hole 16111, and a wiring hole 16112 is arranged on one side of the through hole 16111. Along the upper surface and the lower surface of the through hole 16111, a limiting lug 16113 is formed by extending in the same direction, and the coil of the inductor 120 is located within a pair of limiting lugs 16113.

[0065] One end of the clip 1612 is detachably connected to the other end of the slider 1611 and the torque adjusting device 1614. The inductor 120 and the curved rod 150 are respectively in contact with different ends and different sides of the short connecting pipe 1613, and the contact end of the short connecting pipe 1613 with the inductor 120 is arranged in a hemispherical shape, and the contact end of the short connecting pipe 1613 with the curved rod 150 is cylindrical.

[0066] The slider 1611 is further provided with a convex portion 16115, and the convex portion 16115 is located at the turning point of the limiting lug 16113 and is close to the semi-spherical end of the short connecting pipe 1613. The protruding direction is the same as the extending direction of the limiting lug 16113, and is used to limit the rotation angle of the short connecting pipe 1613 and at the same time make the semi-spherical end of the short connecting pipe 1613 contact with the inductor 120.

[0067] The torque adjusting device 1614 includes a rotating shaft 16141, a torsion spring 16142 and an angle limiting block 16143; the rotating shaft 16141 sequentially passes through one side housing of the short connecting pipe 1613 and is located within the short connecting pipe 1613, then passes through the angle limiting block 16143 and the torsion spring 16142, and passes through the other side housing of the short connecting pipe 1613 and is detachably connected to the clip 1612.

[0068] A plurality of torsion spring fixing holes 16144 are uniformly arranged on the angle limiting block 16143. Two ends of the torsion spring 16142 are respectively connected to the torsion spring fixing holes 16144 and the short connecting pipe 1613, and by adjusting and replacing the connection with different torsion spring fixing holes 16144 through the torsion spring 16142, the torque of the torsion spring 16142 can be adjusted.

[0069] The torques provided by the torsion spring 16142 act on both ends of the short connecting pipe 1613 respectively, and the two torque directions are opposite, so that the semi-spherical end of the short connecting pipe 1613 is closely attached to the inductor 120, and the cylindrical end of the short connecting pipe 1613 is closely attached to the curved rod 150.

[0070] When the inductor 120 rotates, the slider 1611 can slide up and down along the guide rail 162 synchronously, and the short pipe 1613 always keeps in contact with the inductor 120 and the curved rod 150 to short-circuit part of the coil of the inductor 120 and change the inductance value of the inductor 120. One end of the suspension rope 165 is fixedly connected to the slider 1611 through the wiring hole 16112, and the other end is fixedly connected to the counterweight 164 after passing through the pulley 163. At the same time, the second transmission device 170 and the third transmission device 180 rotate to adjust the overlapping area of the two metal plates in the first capacitor 130 and the second capacitor 140 to adjust the capacitance value and realize the dynamic adjustment of the matching degree between the circuit and the antenna.

[0071] Among them, in order to ensure the smooth up and down movement of the slider 1611, the slider 1611 is made of polytetrafluoroethylene material, and the guide rail 162 is made of ceramic material. When the two materials slide relative to each other, the friction coefficient is small. In order to prevent the slider 1611 from being stuck due to eccentricity during the up and down sliding, an appropriate counterweight is added to the slider 1611. The counterweight is realized through the counterweight device 164. The counterweight device 164 moves along the guide cylinder 1110 without deviation. Under the action of the counterweight device 164, the slider 1611 always receives an upward pulling force, which can keep the relative position relationship between the slider 1611 and the guide rail 162. The pulling force can be adjusted by adding or reducing counterweight blocks at the tail of the counterweight device 164. When the inductor 120 rotates, the slider 1611 moves up and down synchronously through the counterweight device 164.

[0072] Please refer to Figures 1 to 9 As shown, in an embodiment of the present invention, except that the guide rail 162 and the frame 1000 are made of non-conductive materials, other components are conductive.

[0073] Please refer to Figures 1 to 10 As shown, the present invention also provides an assembly method for an antenna tuning unit device. The assembly steps include:

[0074] 1. Assembly of the frame 1000.

[0075] The top plate 1120, the first intermediate plate 1130 and the second intermediate plate 1140 are sequentially assembled on the frame 1100, and the bolts installed at this time are not tightened; two groups of centering tooling 700 are used to make the first output hole 121, the first fixing hole 131 and the third output hole 141 coaxial, and the second output hole 122, the third fixing hole 133 and the fourth output hole 143 coaxial, and then the bolts are tightened.

[0076] 2. Assembly of the feed pipe device 300.

[0077] The first feed pipe 310, the second feed pipe 320, the third feed pipe 330 and the fourth feed pipe 340 are sequentially installed, and then the fourth feed pipe 340 is removed.

[0078] 3. Assemble the first tuning device 100 and the second tuning device 200.

[0079] Remove the first concentric flange 720 on the centering tooling 700 and assemble the first transmission device 110. Use the optical axis 710 of the centering tooling 700 to verify the concentricity of the first transmission device 110; remove the centering tooling 700.

[0080] Coaxially align the first liquid cooling device 510 with the output end of the first transmission device 110 through a centering flange and connect it to the top plate 1120.

[0081] Assemble the second transmission device 170 and the third transmission device 180, and connect them to the rotating shafts of the first capacitor 130 and the second capacitor 140 through couplings.

[0082] Assemble the second liquid cooling device 520 and the water culvert device 530 with the first capacitor 130 and the so-called second capacitor 140 respectively, and then connect the two ends of the curved rod 150 to the first liquid cooling device 510 and the water culvert device 530 respectively.

[0083] Pass the guide rail 162 through the short-circuiting device 161, and fixedly connect the two ends of the guide rail 162 to the top plate 1120 and the first intermediate plate 1130 respectively.

[0084] Connect the inductor 120 to the first liquid cooling device 510 and the second liquid cooling device 520, so that the inductor 120 and the curved rod 150 are in non-side contact with different ends of the short-circuiting device 161 respectively, and snap one end of the short-circuiting device 161 onto the inductor 120. When the inductor 120 rotates, the short-circuiting device 161 can slide up and down along the guide rail 162 synchronously and always remain in contact with the inductor 120 and the curved rod 150; connect one end of the suspension rope 165 to the short-circuiting device 161, and the other end passes through the pulley 163 and is fixedly connected to the counterweight 164. Finally, assemble the copper strip 500 and the discharge ball 600.

[0085] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

[0086] The above-described embodiments only represent the implementation manners of the invention. The protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention.

Claims

1. An antenna tuning unit device, characterized in that: include: A frame (1000), and a first tuning device (100) and a second tuning device (200) symmetrically arranged in the frame (1000), and also comprising a feeding device (300) and an external device (400) connected to the first tuning device (100) and the second tuning device (200); The first tuning device (100) comprises a first transmission device (110), an inductor (120), a first capacitor (130), a second capacitor (140), a bent rod (150), a short-circuiting device (160), a second transmission device (170) and a third transmission device (180); The output end of the first transmission device (110), the inductor (120), the first capacitor (130) and the second transmission device (170) are longitudinally coaxially arranged and connected in sequence; one end of the curved rod (150) is connected to the inductor (120), and the other end is connected to the second capacitor (140) and the third transmission device (180) in sequence; The short-circuit device (160) is in contact with the inductor (120) and the bent rod (150) at the same time, and moves up and down synchronously with the rotation of the inductor (120) to adjust the inductance value; the second transmission device (170) and the third transmission device (180) rotate to adjust the overlapping area of ​​the two metal plates in the first capacitor (130) and the second capacitor (140) to adjust the capacitance value.

2. The antenna tuning unit device according to claim 1, characterized in that: The first transmission device (110) has two output ends, which are respectively connected to the inductors in the first tuning device (100) and the second tuning device (200), and the two output ends of the first transmission device (110) rotate synchronously and in the same direction; and the third transmission device (180) is simultaneously connected to the second capacitors in the first tuning device (100) and the second tuning device (200).

3. The antenna tuning unit device according to claim 1, characterized in that: The frame (1000) comprises a frame (1100), and a top plate (1120), a first middle plate (1130), a second middle plate (1140) and a bottom plate (1150) detachably connected to the frame (1100); The top plate (1120) is provided with a first output hole (121) and a second output hole (122); the first transmission device (110) is fixedly located on the top plate (1120), and two output ends of the first transmission device (110) extend out of the first output hole (121) and the second output hole (122) respectively; The first middle plate (1130) has two rows of fixing holes, the first row of fixing holes comprising a first fixing hole (131), a second fixing hole (132) and a third fixing hole (133) arranged in sequence side by side; the second row of fixing holes comprising a fourth fixing hole (134) and a fifth fixing hole (135); the second row of fixing holes is located on a side close to the external device (400); The second intermediate plate (1140) has a third output hole (141), a sixth fixing hole (142) and a fourth output hole (143) arranged in sequence and in parallel; and a fifth output hole (144) and a sixth output hole (145) arranged in the same orientation as the second row of fixing holes; The axes of the first output hole (121), the first fixing hole (131) and the third output hole (141) are concentric; the axes of the second output hole (122), the third fixing hole (133) and the fourth output hole (143) are concentric.

4. The antenna tuning unit device according to claim 3, characterized in that: The first capacitor (130) is fixedly located in the first fixing hole (131); the second transmission device (170) is fixedly located between the second intermediate plate (1140) and the bottom plate (1150) and is fixedly connected to the second intermediate plate (1140); the output shaft passes through the third output hole (141) and is connected to the rotating shaft of the first capacitor (130) via a coupling, thereby driving the first capacitor (130) to rotate; one end of the inductor (120) is connected to the output end of the first transmission device (110), and the other end is connected to the first capacitor (130); The fourth output hole (143) and the third fixing hole (133) are used to fix the second transmission device and the first capacitor in the second tuning device (200); The fourth fixing hole (134) and the fifth fixing hole (135) respectively fix the second capacitors of the first tuning device (100) and the second tuning device (200); the third transmission device (180) is located between the bottom plate (1150) and the second middle plate (1140), and is fixedly connected to the second middle plate (1140); its two output shafts respectively pass through the fifth output hole (144) and the sixth output hole (145), and are respectively connected to the rotating shafts of the second capacitors of the first tuning device (100) and the second tuning device (200) through a coupling, thereby driving the second capacitors to rotate.

5. The antenna tuning unit device according to claim 1, characterized in that: The antenna tuning unit device further comprises a first liquid cooling device (510), a second liquid cooling device (520) and a water culvert device (530); the first liquid cooling device (510) is hinged to a top plate (1120) in the frame (1000); the second liquid cooling device (520) is fixedly connected to the first capacitor (130), and the water culvert device (530) is fixedly connected to the second capacitor (140); The inductor (120) is a coil formed by winding, and the interior is a hollow copper tube, the interfaces at both ends are open, and one end is connected to the output end of the first transmission device (110) through the first liquid cooling device (510), and the other end is located in the second liquid cooling device (520) and is hinged to the second liquid cooling device (520); The interior of the curved rod (150) is hollow, one end of which is connected to the first liquid cooling device (510), and the other end of which is connected to the water culvert device (530); The first liquid cooling device (510), the second liquid cooling device (520), the inductor (120), the curved rod (150) and the water culvert device (530) form a cooling path for the inductor.

6. The antenna tuning unit device according to claim 1, characterized in that: The first capacitors in the first tuning device (100) and the second tuning device (200) are connected via a connecting sheet (1200); the second capacitors in the first tuning device (100) and the second tuning device (200) are both connected to the external device (400), and connected to the antenna via the external device (400).

7. The antenna tuning unit device according to claim 6, characterized in that: The feeding pipe device (300) sequentially passes through the sixth fixing hole (142) and the second fixing hole (132) in the frame (1000) and is detachably connected thereto; the feeding pipe device (300) comprises a first feeding pipe (310), a second feeding pipe (320), a third feeding pipe (330) and a fourth feeding pipe (340) which are detachably connected thereto in sequence; the first feeding pipe (310) is located in the second fixing hole (132), the second feeding pipe (320) is located between the first middle plate (1130) and the second middle plate (1130) in the frame (1000); Between the intermediate plates (1140), the two ends are respectively connected to the first feeding tube (310) and the third feeding tube (330); the third feeding tube (330) is a right-angle tube, one end of which passes through the sixth fixing hole (142) to be connected to the second feeding tube (320), and the other end is connected to the fourth feeding tube (340); an internal feeding device (350) is arranged inside the feeding tube device (300), one end of the internal feeding device (350) extends out of the first feeding tube (310) to be connected to the connecting plate (1200), and the other end is connected to the transmitter.

8. The antenna tuning unit device according to claim 1, characterized in that: The short-circuit device (160) comprises a short-circuit (161), a guide rail (162), a pulley (163), a counterweight (164) and a suspension rope (165); the guide rail (162) passes through the short-circuit (161); the short-circuit (161) is located between the inductor (120) and the bent rod (150), and the inductor (120) and the bent rod (150) are in contact with different ends and sides of the short-circuit (161) respectively; when the inductor (120) rotates, the short-circuit (161) can synchronously slide up and down along the guide rail (162) and always keep in contact with the inductor (120) and the bent rod (150); one end of the suspension rope (165) is connected to the short-circuit (161), and the other end passes through the pulley (163) and is fixedly connected to the counterweight (164).

9. The antenna tuning unit device according to claim 8, characterized in that: The short-circuit (161) comprises a slider (1611), a clip (1612), a short-circuit tube (1613) and a torque adjustment device (1614); one end of the slider (1611) limits the inductor (120), and can slide up and down synchronously along the coil of the inductor (120) when the inductor (120) rotates; one end of the clip (1612) is detachably connected to the other end of the slider (1611); the torque adjustment device (1614) passes through the short-circuit tube (1613) and is detachably connected to the clip (1612); The clip (1612) can rotate on the slider (1611) to adjust the fixed angle, and thus adjust the position of the short tube (1613) in a linked manner, so that both ends of the short tube (1613) are in contact with the inductor (120) and the bent rod (150), so as to short-circuit part of the coil of the inductor (120); the torque adjustment device (1614) can adjust the magnitude of the torque in two different ways, so that the torque acts on the short tube (1613), so as to ensure the reliability of the contact between the short tube (1613) and the inductor (120) and the bent rod (150).

10. An assembly method of the antenna tuning unit device according to any one of claims 1 to 9, characterized in that: The assembly steps include:

1. Frame (1000) assembly; The top plate (1120), the first middle plate (1130) and the second middle plate (1140) are sequentially assembled on the frame (1100), and the bolts installed are not tightened at this time; two sets of centering tools (700) are used to respectively make the first output hole (121), the first fixing hole (131) and the third output hole (141) coaxial; and the second output hole (122), the third fixing hole (133) and the fourth output hole (143) coaxial, and the bolts are tightened at this time; 2. Assembling the feeding tube device (300); Installing the first feeding pipe (310), the second feeding pipe (320), the third feeding pipe (330) and the fourth feeding pipe (340) in sequence, and then removing the fourth feeding pipe (340); 3. Assembling the first tuning device (100) and the second tuning device (200); Removing the first concentric flange (720) on the centering tool (700) and assembling the first transmission device (110); using the optical axis (710) of the centering tool (700) to verify the concentricity of the first transmission device (110); and removing the centering tool (700); The first liquid cooling device (510) is coaxial with the output end of the first transmission device (110) through a centering flange, and is connected to the top plate (1120); Assembling a second transmission device (170) and a third transmission device (180), and connecting them to the rotating shafts of the first capacitor (130) and the second capacitor (140) via a coupling; Assembling the second liquid cooling device (520) and the water culvert device (530) with the first capacitor (130) and the second capacitor (140) respectively, and then connecting the two ends of the curved rod (150) to the first liquid cooling device (510) and the water culvert device (530) respectively; The guide rail (162) is passed through the short-circuit (161), and the two ends of the guide rail (162) are fixedly connected to the top plate (1120) and the first middle plate (1130) respectively; The inductor (120) is connected to the first liquid cooling device (510) and the second liquid cooling device (520), so that the inductor (120) and the curved rod (150) are respectively in contact with different ends of the short-circuit (161), and one end of the short-circuit (161) is engaged with the inductor (120); when the inductor (120) rotates, the short-circuit (161) can synchronously slide up and down along the guide rail (162) and always keep in contact with the inductor (120) and the curved rod (150); one end of the suspension rope (165) is connected to the short-circuit (161), and the other end passes through the pulley (163) and is fixedly connected to the counterweight (164).

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