An oscillator unit structure

Abstract

A vibrator unit structure relates to an antenna vibrator. The main body of the vibrator unit is an integral structure formed by stamping and bending an aluminum alloy plate. Within the main body of the vibrator unit, there are four baluns that bend upwards around the bottom of the main body. Each of the four baluns has an outwardly bent vibrator arm at its top. Feed lines for connecting the vibrator arms are arranged within the space enclosed by the four upwardly bent baluns. Each of the four vibrator arms has an upwardly bent flange at its end near the balun. A PCB fixing plate with four fixing slots is located above the vibrator unit. The PCB fixing plate is fixedly connected to the flanges of the four vibrator arms through the four fixing slots, forming a fixed support structure for the upper end of the vibrator unit body. This structure provides sufficient structural strength for the baluns and vibrator arms, allowing for the use of a thinner aluminum alloy plate for stamping and manufacturing, thus reducing the weight of the vibrator unit.

Description

Technical Field

[0001] This utility model relates to an antenna vibrator, specifically a vibrator unit structure. Background Technology

[0002] In aerospace applications, the cost per unit weight for transmission is very high, necessitating minimizing antenna weight to reduce transmission costs. The weight of the dipole element significantly impacts the overall antenna weight, primarily in two ways: 1. Direct impact: Antennas have numerous dipole elements, and these elements account for a large proportion of the antenna's weight. 2. Indirect impact: Aerospace applications demand high antenna reliability, and the weight of the dipole elements significantly affects the antenna's structural strength. Higher dipole element weight requires stronger structural components, resulting in heavier components, while lower dipole element weight allows for less stringent strength requirements and lighter components. Therefore, the weight of the dipole element largely determines the antenna weight, making the design of a lightweight dipole element crucial. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a vibrator unit structure to reduce the weight of the vibrator unit and the antenna.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a vibrator unit structure, wherein the main body of the vibrator unit is an integral structure formed by stamping and bending an aluminum alloy plate. The main body of the vibrator unit has four baluns that bend upwards around the bottom of the main body. Each of the four baluns has an outwardly bent vibrator arm at its top. Feed lines for connecting the vibrator arms are arranged within the space enclosed by the four upwardly bent baluns. Each of the four vibrator arms has an upwardly bent flange at one end near the balun. A PCB fixing plate with four fixing slots is provided above the vibrator unit. The PCB fixing plate is fixedly connected to the flanges of the four vibrator arms through the four fixing slots, forming a fixed support structure for the upper end of the vibrator unit body.

[0005] The main body surface of the oscillator unit is provided with an electroplated layer for welding.

[0006] The vibrator arm has a cutout, and the cutout has a folded edge on the side edge near the balun.

[0007] The folded edge is inserted into the fixing groove of the PCB fixing plate and welded in place.

[0008] The PCB mounting plate has a fixing solder point on one side of the fixing slot.

[0009] The space enclosed by the balun is provided with two feed lines for connecting two pairs of oscillator arms. Both feed lines have an extension arm extending along the height direction of the balun and a connecting arm that bends from the top of the extension arm toward the oscillator arm. The extension end of the connecting arm is provided with a feed protrusion for connecting the oscillator arm.

[0010] Within the space enclosed by the balun, there are two PCB support plates spaced vertically apart for supporting and fixing the feed lines. The PCB support plates are provided with two feed line slots for the extension arms of the two feed lines to pass through.

[0011] The PCB support plate has a connection solder joint on one side of the feeder channel.

[0012] Feed welding grooves are provided on the tops of two adjacent baluns, and the feed protrusions on the connecting arms of the two feed lines are welded and fixed to the feed welding grooves on the tops of the two baluns respectively.

[0013] The bottom of the main body of the oscillator unit has an opening through which the extension arm of the feed line passes downward.

[0014] The beneficial effects of this utility model are as follows: The main body of the oscillator unit is formed by stamping and bending aluminum alloy plate. By setting a PCB fixing plate above the oscillator unit to connect the oscillator arms at the top of the four baluns, a fixed support structure is formed above the oscillator unit. The fixed support structure at the bottom and top of the oscillator unit body forms a fixed support for the baluns and oscillator arms, so that the baluns and oscillator arms have sufficient structural strength. Thus, the baluns and oscillator arms can be made by stamping aluminum alloy plates with a smaller thickness, thereby reducing the weight of the oscillator unit.

[0015] Furthermore, a PCB support plate is used to support and fix the feed line within the space enclosed by the balun. The PCB support plate can be welded and fixed to the feed line, providing a stable and robust support structure while further reducing the weight of the oscillator unit by utilizing the lightweight characteristics of the PCB support plate.

[0016] The oscillator unit has a simple structure, is easy to manufacture, and is lightweight, effectively reducing the weight of the antenna and meeting the needs of specific aerospace applications. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the oscillator unit of this utility model.

[0018] Figure 2 This is an exploded view of the oscillator unit of this utility model.

[0019] Figure 3 This is a schematic diagram of the main structure of the oscillator unit of this utility model.

[0020] Figure 4 This is a schematic diagram showing how the feeder is arranged in the main body of the oscillator unit.

[0021] Figure 5 This is a schematic diagram of the assembly method of two feeders.

[0022] Figure 6 This is a schematic diagram of the feeder structure.

[0023] Figure 7 This is a structural diagram of the PCB mounting board.

[0024] Figure 8 This is a structural diagram of the PCB support board.

[0025] The markings in the diagram are: 1. Oscillator unit, 101. Balun, 102. Oscillator arm, 103. Folded edge, 104. Hollowed-out opening, 105. Feeder welding groove, 2. Feeder, 201. Extension arm, 202. Connecting arm, 203. Feeder protrusion, 3. PCB support board, 301. Feeder groove, 302. Connecting solder joint, 4. PCB fixing board, 401. Fixing groove, 402. Fixing solder joint. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. The specific contents listed in the following embodiments are not limited to the technical features necessary to solve the technical problem of this utility model. Furthermore, the listed embodiments are only a part of this utility model, and not all of them.

[0027] like Figure 1 and 2 As shown, the oscillator unit structure of this utility model generally includes a balun 101 and an oscillator arm 102. The balun 101 and oscillator arm 102 form the main body of the oscillator unit 1, and are integrally formed by stamping and bending an aluminum alloy plate. There are four baluns 101 in the main body of the oscillator unit 1. The four baluns 101 are stamped and formed on the same aluminum alloy plate and are symmetrically distributed around a region on the aluminum alloy plate. The baluns 101 and oscillator arm 102 are integrally formed. After stamping out the shape of the baluns 101 and oscillator arm 102, the baluns 101 are bent upwards, and the region on the aluminum alloy plate surrounded by the four baluns becomes the bottom of the main body of the oscillator unit 1. The tops of the four baluns 101 are bent outwards to form four oscillator arms 102. Two opposite oscillator arms form a pair of oscillators, making the oscillator unit a bipolar symmetrical oscillator structure.

[0028] An upwardly bent flange 103 is provided at the end of the oscillator arm 102 near the balun. A PCB fixing plate 4 is provided above the oscillator unit 1. The PCB fixing plate 4 has four fixing slots 401, the positions of which correspond to the positions of the flanges 103 on the four oscillator arms 102. The PCB fixing plate 4 is fixedly connected to the flanges 103 of the four oscillator arms through the four fixing slots, and the four baluns 101 and the oscillator arms 102 are connected by the PCB fixing plate 4, forming a fixed support structure for the upper part of the main body of the vibration unit 1. Even with a relatively thin aluminum alloy plate, good support force can be provided between the four oscillator arms.

[0029] like Figure 3 As shown, the vibrator arm 102 is provided with a cutout 104. The shape and size of the cutout 104 are set according to the antenna radiation characteristics, which can reduce the weight of the vibrator unit 1. The folded edge 103 can be set on the edge of the cutout 104 near the balun 101, or it can be set in other positions as needed.

[0030] like Figure 1 and 7 As shown, the PCB fixing plate 4 includes a central portion and four extension portions extending towards the corresponding vibrator arms 102, minimizing the amount of material used while connecting the four vibrator arms. A hollow structure can also be provided on the PCB fixing plate 4 to further reduce weight. A fixing solder point 402 is provided on one side of the fixing groove 401 on the PCB fixing plate 4. After the folded edge 103 is inserted into the fixing groove 401, it can be welded to the PCB fixing plate 4 using the fixing solder point 402. To facilitate welding, the main body surface of the vibrator unit 1 can be electroplated to form an electroplating layer for welding.

[0031] like Figure 2 and 4 As shown, a feed line 2 for connecting the oscillator arms 102 is provided within the space enclosed by four upward-bending baluns 101. There are two feed lines 2, each used to connect one pair of oscillator arms 102. The two feed lines 2 have the same structure but are connected in different directions. The structure of the feed line 2 is as follows: Figure 6 As shown, it includes an extension arm 201 and a connecting arm 202 that bends laterally from the top of the extension arm. Figure 2 As shown, the extension arm 201 is inserted into the space enclosed by the four baluns 101 and extends along the height direction of the baluns 101. The connecting arm 202 bends and extends from the top of the extension arm 201 toward the corresponding oscillator arm 102. The extended end of the connecting arm 202 is provided with a feed protrusion 203 for connecting the oscillator arm 102.

[0032] like Figure 3 and 4As shown, feed line welding grooves 105 are provided on the top of two adjacent baluns 101, and feed protrusions 203 on the connecting arms 202 of the two feed lines 2 are welded and fixed to the feed line welding grooves 105 on the top of the two baluns respectively. The bottom of the main body of the oscillator unit 1 is provided with an opening for the extension arm 201 of the feed line 2 to pass downward.

[0033] like Figure 2 and 4 As shown, within the space enclosed by the balun 101, there are two PCB support plates 3 spaced vertically apart. Two feed lines 2 are inserted into the two PCB support plates 3, and the PCB support plates 3 provide support and fixation for the two feed lines. Figure 8 As shown, the PCB support plate has two feeder slots 301, the positions of which correspond to the positions of two feeders. The extension arm 201 of the feeder passes through the corresponding feeder slot 301 and is then soldered to the PCB support plate. A connecting solder point 302 is provided on one side of the feeder slot 301 on the PCB support plate 3, serving as the soldering point for the extension arm 201.

[0034] The PCB fixing plate 4 and the PCB support plate 3 can be fixed by welding. While forming a strong support structure, the material can be a lightweight hydrocarbon PCB board material to further reduce the weight of the oscillator unit.

[0035] The oscillator unit structure of this invention is easy to assemble and manufacture. The main body and feed lines of the oscillator unit can be formed by stamping. During assembly, the two feed lines are passed sequentially through the corresponding feed line slots 301 on the two PCB support plates 3, positioned by tooling, and then welded and fixed at the connection solder joints 302 to form a complete unit. Figure 5 The component is shown. This component is then assembled into the space enclosed by the four baluns 101 within the main body of the oscillator unit. The positions of the feed protrusions 203 at the extension ends of the two feed line connecting arms 202 correspond to the feed line welding grooves 105 on the top of the baluns 101. The feed line feed protrusions 203 are welded to the contact points of the feed line welding grooves 105 to form... Figure 4 The structure is shown. Next, the PCB fixing plate 4 is placed on the oscillator unit. The fixing groove 401 of the PCB fixing plate 4 corresponds to the folded edge 103 on the corresponding oscillator arm. The fixing groove 401 is fitted onto the folded edge 103, and then the PCB fixing plate 4 and the folded edge 103 are welded and fixed at the fixing solder point 402. The supported oscillator unit is as follows. Figure 1 As shown.

[0036] The above description of specific embodiments is only for the purpose of helping to understand the technical concept and core idea of ​​this utility model. Although specific preferred embodiments have been used to describe and illustrate the technical solution, they should not be construed as limiting the utility model itself. Those skilled in the art can make various changes in form and detail without departing from the technical concept. These easily conceived changes or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A structure of a vibrator unit, characterized by: The main body of the oscillator unit (1) is an integral structure formed by stamping and bending of an aluminum alloy plate. There are four baluns (101) in the main body of the oscillator unit (1) that are bent upward around the bottom of the main body. Each of the four baluns (101) has an outwardly bent oscillator arm (102) at the top. The feed line (2) for connecting the oscillator arm (102) is set in the space enclosed by the four upwardly bent baluns (101). Each of the four oscillator arms (102) has an upwardly bent flange (103) at the end near the balun. A PCB fixing plate (4) with four fixing slots (401) is provided above the oscillator unit (1). The PCB fixing plate (4) is fixedly connected to the flanges (103) of the four oscillator arms through the four fixing slots to form a fixed support structure for the upper end of the main body of the oscillator unit (1).

2. A structure for a vibrator unit as defined in claim 1, characterized in that The main body surface of the oscillator unit (1) is provided with an electroplated layer for welding.

3. The oscillator unit structure as described in claim 1, characterized in that: The vibrating arm (102) is provided with a hollow opening (104), and the edge of the hollow opening near the balun (101) is provided with the folded edge (103).

4. A oscillator unit structure as described in claim 1 or 3, characterized in that: The folded edge (103) is inserted into the fixing groove (401) of the PCB fixing plate (4) and welded to fix it.

5. The oscillator unit structure as described in claim 4, characterized in that: The PCB fixing plate (4) has a fixing solder point (402) on one side of the fixing groove (401).

6. The oscillator unit structure as described in claim 1, characterized in that: The space enclosed by the balun (101) is provided with two feed lines (2) for connecting two pairs of vibrating arms (102). Both feed lines (2) have an extension arm (201) extending along the height direction of the balun (101) and a connecting arm (202) bending from the top of the extension arm toward the vibrating arm (102). The extension end of the connecting arm (202) is provided with a feed protrusion (203) for connecting the vibrating arm (102).

7. The oscillator unit structure as described in claim 5, characterized in that: Within the space enclosed by the balun (101), there are two PCB support plates (3) spaced apart vertically for supporting and fixing the feed lines (2). The PCB support plates are provided with two feed line slots (301) through which the extension arms (201) of the two feed lines pass.

8. The oscillator unit structure as described in claim 7, characterized in that: The PCB support plate (3) has a connection solder joint (302) on one side of the feeder groove (301).

9. The oscillator unit structure as described in claim 5, characterized in that: Feed welding grooves (105) are provided on the top of two adjacent baluns (101), and the feed protrusions (203) on the connecting arms (202) of the two feed lines (2) are welded and fixed to the feed welding grooves (105) on the top of the two baluns respectively.

10. The oscillator unit structure as described in claim 5, characterized in that: The bottom of the main body of the oscillator unit (1) has an opening through which the extension arm (201) of the feed line (2) passes downward.

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